path: root/pkg/mpv/mpv.1

.\" Man page generated from reStructuredText.
.
.TH MPV 1 "" "" "multimedia"
.SH NAME
mpv \- a media player
.
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.SH SYNOPSIS
.nf
\fBmpv\fP [options] [file|URL|PLAYLIST|\-]
\fBmpv\fP [options] files
.fi
.sp
.SH DESCRIPTION
.sp
\fBmpv\fP is a media player based on MPlayer and mplayer2. It supports a wide variety of video
file formats, audio and video codecs, and subtitle types. Special input URL
types are available to read input from a variety of sources other than disk
files. Depending on platform, a variety of different video and audio output
methods are supported.
.sp
Usage examples to get you started quickly can be found at the end of this man
page.
.SH INTERACTIVE CONTROL
.sp
mpv has a fully configurable, command\-driven control layer which allows you
to control mpv using keyboard, mouse, or remote control (there is no
LIRC support \- configure remotes as input devices instead).
.sp
See the \fB\-\-input\-\fP options for ways to customize it.
.sp
The following listings are not necessarily complete. See \fBetc/input.conf\fP for
a list of default bindings. User \fBinput.conf\fP files and Lua scripts can
define additional key bindings.
.SS Keyboard Control
.INDENT 0.0
.TP
.B LEFT and RIGHT
Seek backward/forward 5 seconds. Shift+arrow does a 1 second exact seek
(see \fB\-\-hr\-seek\fP).
.TP
.B UP and DOWN
Seek forward/backward 1 minute. Shift+arrow does a 5 second exact seek (see
\fB\-\-hr\-seek\fP).
.TP
.B Ctrl+LEFT and Ctrl+RIGHT
Seek to the previous/next subtitle. Subject to some restrictions and
might not always work; see \fBsub\-seek\fP command.
.TP
.B Ctrl+Shift+Left and Ctrl+Shift+Right
Adjust subtitle delay so that the next or previous subtitle is displayed
now. This is especially useful to sync subtitles to audio.
.TP
.B [ and ]
Decrease/increase current playback speed by 10%.
.TP
.B { and }
Halve/double current playback speed.
.TP
.B BACKSPACE
Reset playback speed to normal.
.TP
.B Shift+BACKSPACE
Undo the last seek. This works only if the playlist entry was not changed.
Hitting it a second time will go back to the original position.
See \fBrevert\-seek\fP command for details.
.TP
.B Shift+Ctrl+BACKSPACE
Mark the current position. This will then be used by \fBShift+BACKSPACE\fP
as revert position (once you seek back, the marker will be reset). You can
use this to seek around in the file and then return to the exact position
where you left off.
.TP
.B < and >
Go backward/forward in the playlist.
.TP
.B ENTER
Go forward in the playlist.
.TP
.B p / SPACE
Pause (pressing again unpauses).
.TP
.B \&.
Step forward. Pressing once will pause, every consecutive press will
play one frame and then go into pause mode again.
.UNINDENT
.INDENT 0.0
.TP
.B ,
Step backward. Pressing once will pause, every consecutive press will
play one frame in reverse and then go into pause mode again.
.TP
.B q
Stop playing and quit.
.TP
.B Q
Like \fBq\fP, but store the current playback position. Playing the same file
later will resume at the old playback position if possible.
.TP
.B / and *
Decrease/increase volume.
.TP
.B 9 and 0
Decrease/increase volume.
.TP
.B m
Mute sound.
.TP
.B _
Cycle through the available video tracks.
.TP
.B #
Cycle through the available audio tracks.
.TP
.B f
Toggle fullscreen (see also \fB\-\-fs\fP).
.TP
.B ESC
Exit fullscreen mode.
.TP
.B T
Toggle stay\-on\-top (see also \fB\-\-ontop\fP).
.TP
.B w and W
Decrease/increase pan\-and\-scan range. The \fBe\fP key does the same as
\fBW\fP currently, but use is discouraged.
.TP
.B o (also P)
Show progression bar, elapsed time and total duration on the OSD.
.TP
.B O
Toggle OSD states between normal and playback time/duration.
.TP
.B v
Toggle subtitle visibility.
.TP
.B j and J
Cycle through the available subtitles.
.TP
.B z and Z
Adjust subtitle delay by +/\- 0.1 seconds. The \fBx\fP key does the same as
\fBZ\fP currently, but use is discouraged.
.TP
.B l
Set/clear A\-B loop points. See \fBab\-loop\fP command for details.
.TP
.B L
Toggle infinite looping.
.TP
.B Ctrl + and Ctrl \-
Adjust audio delay (A/V sync) by +/\- 0.1 seconds.
.TP
.B u
Switch between applying no style overrides to SSA/ASS subtitles, and
overriding them almost completely with the normal subtitle style. See
\fB\-\-sub\-ass\-override\fP for more info.
.TP
.B V
Toggle subtitle VSFilter aspect compatibility mode. See
\fB\-\-sub\-ass\-vsfilter\-aspect\-compat\fP for more info.
.TP
.B r and R
Move subtitles up/down. The \fBt\fP key does the same as \fBR\fP currently, but
use is discouraged.
.TP
.B s
Take a screenshot.
.TP
.B S
Take a screenshot, without subtitles. (Whether this works depends on VO
driver support.)
.TP
.B Ctrl s
Take a screenshot, as the window shows it (with subtitles, OSD, and scaled
video).
.TP
.B PGUP and PGDWN
Seek to the beginning of the previous/next chapter. In most cases,
"previous" will actually go to the beginning of the current chapter; see
\fB\-\-chapter\-seek\-threshold\fP\&.
.TP
.B Shift+PGUP and Shift+PGDWN
Seek backward or forward by 10 minutes. (This used to be mapped to
PGUP/PGDWN without Shift.)
.TP
.B d
Activate/deactivate deinterlacer.
.TP
.B A
Cycle aspect ratio override.
.TP
.B Ctrl h
Toggle hardware video decoding on/off.
.TP
.B Alt+LEFT, Alt+RIGHT, Alt+UP, Alt+DOWN
Move the video rectangle (panning).
.TP
.B Alt + and Alt \-
Combining \fBAlt\fP with the \fB+\fP or \fB\-\fP keys changes video zoom.
.TP
.B Alt+BACKSPACE
Reset the pan/zoom settings.
.TP
.B F8
Show the playlist and the current position in it (useful only if a UI window
is used, broken on the terminal).
.TP
.B F9
Show the list of audio and subtitle streams (useful only if a UI window  is
used, broken on the terminal).
.TP
.B i and I
Show/toggle an overlay displaying statistics about the currently playing
file such as codec, framerate, number of dropped frames and so on. See
\fI\%STATS\fP for more information.
.TP
.B del
Cycles visibility between never / auto (mouse\-move) / always
.TP
.B \(ga
Show the console. (ESC closes it again. See \fI\%CONSOLE\fP\&.)
.UNINDENT
.sp
(The following keys are valid only when using a video output that supports the
corresponding adjustment.)
.INDENT 0.0
.TP
.B 1 and 2
Adjust contrast.
.TP
.B 3 and 4
Adjust brightness.
.TP
.B 5 and 6
Adjust gamma.
.TP
.B 7 and 8
Adjust saturation.
.TP
.B Alt+0 (and command+0 on OSX)
Resize video window to half its original size.
.TP
.B Alt+1 (and command+1 on OSX)
Resize video window to its original size.
.TP
.B Alt+2 (and command+2 on OSX)
Resize video window to double its original size.
.TP
.B command + f (OSX only)
Toggle fullscreen (see also \fB\-\-fs\fP).
.UNINDENT
.sp
(The following keys are valid if you have a keyboard with multimedia keys.)
.INDENT 0.0
.TP
.B PAUSE
Pause.
.TP
.B STOP
Stop playing and quit.
.TP
.B PREVIOUS and NEXT
Seek backward/forward 1 minute.
.UNINDENT
.sp
If you miss some older key bindings, look at \fBetc/restore\-old\-bindings.conf\fP
in the mpv git repository.
.SS Mouse Control
.INDENT 0.0
.TP
.B Left double click
Toggle fullscreen on/off.
.TP
.B Right click
Toggle pause on/off.
.TP
.B Forward/Back button
Skip to next/previous entry in playlist.
.TP
.B Wheel up/down
Seek forward/backward 10 seconds.
.TP
.B Wheel left/right
Decrease/increase volume.
.UNINDENT
.SH USAGE
.sp
Command line arguments starting with \fB\-\fP are interpreted as options,
everything else as filenames or URLs. All options except \fIflag\fP options (or
choice options which include \fByes\fP) require a parameter in the form
\fB\-\-option=value\fP\&.
.sp
One exception is the lone \fB\-\fP (without anything else), which means media data
will be read from stdin. Also, \fB\-\-\fP (without anything else) will make the
player interpret all following arguments as filenames, even if they start with
\fB\-\fP\&. (To play a file named \fB\-\fP, you need to use \fB\&./\-\fP\&.)
.sp
Every \fIflag\fP option has a \fIno\-flag\fP counterpart, e.g. the opposite of the
\fB\-\-fs\fP option is \fB\-\-no\-fs\fP\&. \fB\-\-fs=yes\fP is same as \fB\-\-fs\fP, \fB\-\-fs=no\fP
is the same as \fB\-\-no\-fs\fP\&.
.sp
If an option is marked as \fI(XXX only)\fP, it will only work in combination with
the \fIXXX\fP option or if \fIXXX\fP is compiled in.
.SS Legacy option syntax
.sp
The \fB\-\-option=value\fP syntax is not strictly enforced, and the alternative
legacy syntax \fB\-option value\fP and \fB\-option=value\fP will also work. This is
mostly  for compatibility with MPlayer. Using these should be avoided. Their
semantics can change any time in the future.
.sp
For example, the alternative syntax will consider an argument following the
option a filename. \fBmpv \-fs no\fP will attempt to play a file named \fBno\fP,
because \fB\-\-fs\fP is a flag option that requires no parameter. If an option
changes and its parameter becomes optional, then a command line using the
alternative syntax will break.
.sp
Until mpv 0.31.0, there was no difference whether an option started with \fB\-\-\fP
or a single \fB\-\fP\&. Newer mpv releases strictly expect that you pass the option
value after a \fB=\fP\&. For example, before \fBmpv \-\-log\-file f.txt\fP would write
a log to \fBf.txt\fP, but now this command line fails, as \fB\-\-log\-file\fP expects
an option value, and \fBf.txt\fP is simply considered a normal file to be played
(as in \fBmpv f.txt\fP).
.sp
The future plan is that \fB\-option value\fP will not work anymore, and options
with a single \fB\-\fP behave the same as \fB\-\-\fP options.
.SS Escaping spaces and other special characters
.sp
Keep in mind that the shell will partially parse and mangle the arguments you
pass to mpv. For example, you might need to quote or escape options and
filenames:
.INDENT 0.0
.INDENT 3.5
\fBmpv "filename with spaces.mkv" \-\-title="window title"\fP
.UNINDENT
.UNINDENT
.sp
It gets more complicated if the suboption parser is involved. The suboption
parser puts several options into a single string, and passes them to a
component at once, instead of using multiple options on the level of the
command line.
.sp
The suboption parser can quote strings with \fB"\fP and \fB[...]\fP\&.
Additionally, there is a special form of quoting with \fB%n%\fP described below.
.sp
For example, assume the hypothetical \fBfoo\fP filter can take multiple options:
.INDENT 0.0
.INDENT 3.5
\fBmpv test.mkv \-\-vf=foo:option1=value1:option2:option3=value3,bar\fP
.UNINDENT
.UNINDENT
.sp
This passes \fBoption1\fP and \fBoption3\fP to the \fBfoo\fP filter, with \fBoption2\fP
as flag (implicitly \fBoption2=yes\fP), and adds a \fBbar\fP filter after that. If
an option contains spaces or characters like \fB,\fP or \fB:\fP, you need to quote
them:
.INDENT 0.0
.INDENT 3.5
\fBmpv \(aq\-\-vf=foo:option1="option value with spaces",bar\(aq\fP
.UNINDENT
.UNINDENT
.sp
Shells may actually strip some quotes from the string passed to the commandline,
so the example quotes the string twice, ensuring that mpv receives the \fB"\fP
quotes.
.sp
The \fB[...]\fP form of quotes wraps everything between \fB[\fP and \fB]\fP\&. It\(aqs
useful with shells that don\(aqt interpret these characters in the middle of
an argument (like bash). These quotes are balanced (since mpv 0.9.0): the \fB[\fP
and \fB]\fP nest, and the quote terminates on the last \fB]\fP that has no matching
\fB[\fP within the string. (For example, \fB[a[b]c]\fP results in \fBa[b]c\fP\&.)
.sp
The fixed\-length quoting syntax is intended for use with external
scripts and programs.
.sp
It is started with \fB%\fP and has the following format:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
%n%string_of_length_n
.ft P
.fi
.UNINDENT
.UNINDENT
.INDENT 0.0
.INDENT 3.5
.IP "Examples"
.sp
\fBmpv \(aq\-\-vf=foo:option1=%11%quoted text\(aq test.avi\fP
.sp
Or in a script:
.sp
\fBmpv \-\-vf=foo:option1=%\(gaexpr length "$NAME"\(ga%"$NAME" test.avi\fP
.UNINDENT
.UNINDENT
.sp
Suboptions passed to the client API are also subject to escaping. Using
\fBmpv_set_option_string()\fP is exactly like passing \fB\-\-name=data\fP to the
command line (but without shell processing of the string). Some options
support passing values in a more structured way instead of flat strings, and
can avoid the suboption parsing mess. For example, \fB\-\-vf\fP supports
\fBMPV_FORMAT_NODE\fP, which lets you pass suboptions as a nested data structure
of maps and arrays.
.SS Paths
.sp
Some care must be taken when passing arbitrary paths and filenames to mpv. For
example, paths starting with \fB\-\fP will be interpreted as options. Likewise,
if a path contains the sequence \fB://\fP, the string before that might be
interpreted as protocol prefix, even though \fB://\fP can be part of a legal
UNIX path. To avoid problems with arbitrary paths, you should be sure that
absolute paths passed to mpv start with \fB/\fP, and prefix relative paths with
\fB\&./\fP\&.
.sp
Using the \fBfile://\fP pseudo\-protocol is discouraged, because it involves
strange URL unescaping rules.
.sp
The name \fB\-\fP itself is interpreted as stdin, and will cause mpv to disable
console controls. (Which makes it suitable for playing data piped to stdin.)
.sp
The special argument \fB\-\-\fP can be used to stop mpv from interpreting the
following arguments as options.
.sp
When using the client API, you should strictly avoid using \fBmpv_command_string\fP
for invoking the \fBloadfile\fP command, and instead prefer e.g. \fBmpv_command\fP
to avoid the need for filename escaping.
.sp
For paths passed to suboptions, the situation is further complicated by the
need to escape special characters. To work this around, the path can be
additionally wrapped in the fixed\-length syntax, e.g. \fB%n%string_of_length_n\fP
(see above).
.sp
Some mpv options interpret paths starting with \fB~\fP\&. Currently, the prefix
\fB~~/\fP expands to the mpv configuration directory (usually \fB~/.config/mpv/\fP).
\fB~/\fP expands to the user\(aqs home directory. (The trailing \fB/\fP is always
required.) There are the following paths as well:
.TS
center;
|l|l|.
_
T{
Name
T}	T{
Meaning
T}
_
T{
\fB~~home/\fP
T}	T{
same as \fB~~/\fP
T}
_
T{
\fB~~global/\fP
T}	T{
the global config path, if available (not on win32)
T}
_
T{
\fB~~osxbundle/\fP
T}	T{
the OSX bundle resource path (OSX only)
T}
_
T{
\fB~~desktop/\fP
T}	T{
the path to the desktop (win32, OSX)
T}
_
.TE
.SS Per\-File Options
.sp
When playing multiple files, any option given on the command line usually
affects all files. Example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-a file1.mkv \-\-b file2.mkv \-\-c
.ft P
.fi
.UNINDENT
.UNINDENT
.TS
center;
|l|l|.
_
T{
File
T}	T{
Active options
T}
_
T{
file1.mkv
T}	T{
\fB\-\-a \-\-b \-\-c\fP
T}
_
T{
file2.mkv
T}	T{
\fB\-\-a \-\-b \-\-c\fP
T}
_
.TE
.sp
(This is different from MPlayer and mplayer2.)
.sp
Also, if any option is changed at runtime (via input commands), they are not
reset when a new file is played.
.sp
Sometimes, it is useful to change options per\-file. This can be achieved by
adding the special per\-file markers \fB\-\-{\fP and \fB\-\-}\fP\&. (Note that you must
escape these on some shells.) Example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-a file1.mkv \-\-b \-\-\e{ \-\-c file2.mkv \-\-d file3.mkv \-\-e \-\-\e} file4.mkv \-\-f
.ft P
.fi
.UNINDENT
.UNINDENT
.TS
center;
|l|l|.
_
T{
File
T}	T{
Active options
T}
_
T{
file1.mkv
T}	T{
\fB\-\-a \-\-b \-\-f\fP
T}
_
T{
file2.mkv
T}	T{
\fB\-\-a \-\-b \-\-f \-\-c \-\-d \-\-e\fP
T}
_
T{
file3.mkv
T}	T{
\fB\-\-a \-\-b \-\-f \-\-c \-\-d \-\-e\fP
T}
_
T{
file4.mkv
T}	T{
\fB\-\-a \-\-b \-\-f\fP
T}
_
.TE
.sp
Additionally, any file\-local option changed at runtime is reset when the current
file stops playing. If option \fB\-\-c\fP is changed during playback of
\fBfile2.mkv\fP, it is reset when advancing to \fBfile3.mkv\fP\&. This only affects
file\-local options. The option \fB\-\-a\fP is never reset here.
.SS List Options
.sp
Some options which store lists of option values can have action suffixes. For
example, the \fB\-\-display\-tags\fP option takes a \fB,\fP\-separated list of tags, but
the option also allows you to append a single tag with \fB\-\-display\-tags\-append\fP,
and the tag name can for example contain a literal \fB,\fP without the need for
escaping.
.SS String list and path list options
.sp
String lists are separated by \fB,\fP\&. The strings are not parsed or interpreted
by the option system itself. However, most
.sp
Path or file list options use \fB:\fP (Unix) or \fB;\fP (Windows) as separator,
instead of \fB,\fP\&.
.sp
They support the following operations:
.TS
center;
|l|l|.
_
T{
Suffix
T}	T{
Meaning
T}
_
T{
\-set
T}	T{
Set a list of items (using the list separator, interprets escapes)
T}
_
T{
\-append
T}	T{
Append single item (does not interpret escapes)
T}
_
T{
\-add
T}	T{
Append 1 or more items (same syntax as \-set)
T}
_
T{
\-pre
T}	T{
Prepend 1 or more items (same syntax as \-set)
T}
_
T{
\-clr
T}	T{
Clear the option (remove all items)
T}
_
T{
\-remove
T}	T{
Delete item if present (does not interpret escapes)
T}
_
T{
\-del
T}	T{
Delete 1 or more items by integer index (deprecated)
T}
_
T{
\-toggle
T}	T{
Append an item, or remove if if it already exists (no escapes)
T}
_
.TE
.sp
\fB\-append\fP is meant as a simple way to append a single item without having
to escape the argument (you may still need to escape on the shell level).
.SS Key/value list options
.sp
A key/value list is a list of key/value string pairs. In programming languages,
this type of data structure is often called a map or a dictionary. The order
normally does not matter, although in some cases the order might matter.
.sp
They support the following operations:
.TS
center;
|l|l|.
_
T{
Suffix
T}	T{
Meaning
T}
_
T{
\-set
T}	T{
Set a list of items (using \fB,\fP as separator)
T}
_
T{
\-append
T}	T{
Append a single item (escapes for the key, no escapes for the value)
T}
_
T{
\-add
T}	T{
Append 1 or more items (same syntax as \-set)
T}
_
T{
\-remove
T}	T{
Delete item by key if present (does not interpret escapes)
T}
_
.TE
.sp
Keys are unique within the list. If an already present key is set, the existing
key is removed before the new value is appended.
.SS Filter options
.sp
This is a very complex option type for the \fB\-\-af\fP and \fB\-\-vf\fP options only.
They often require complicated escaping. See \fI\%VIDEO FILTERS\fP for details. They
support the following operations:
.TS
center;
|l|l|.
_
T{
Suffix
T}	T{
Meaning
T}
_
T{
\-set
T}	T{
Set a list of filters (using \fB,\fP as separator)
T}
_
T{
\-append
T}	T{
Append single filter
T}
_
T{
\-add
T}	T{
Append 1 or more filters (same syntax as \-set)
T}
_
T{
\-pre
T}	T{
Prepend 1 or more filters (same syntax as \-set)
T}
_
T{
\-clr
T}	T{
Clear the option (remove all filters)
T}
_
T{
\-remove
T}	T{
Delete filter if present
T}
_
T{
\-del
T}	T{
Delete 1 or more filters by integer index or filter label (deprecated)
T}
_
T{
\-toggle
T}	T{
Append a filter, or remove if if it already exists
T}
_
T{
\-help
T}	T{
Pseudo operation that prints a help text to the terminal
T}
_
.TE
.SS General
.sp
Without suffix, the operation used is normally \fB\-set\fP\&.
.sp
Although some operations allow specifying multiple items, using this is strongly
discouraged and deprecated, except for \fB\-set\fP\&. There is a chance that
operations like \fB\-add\fP and \fB\-pre\fP will work like \fB\-append\fP and accept a
single, unescaped item only (so the \fB,\fP separator will not be interpreted and
is passed on as part of the value).
.sp
Some options (like \fB\-\-sub\-file\fP, \fB\-\-audio\-file\fP, \fB\-\-glsl\-shader\fP) are
aliases for the proper option with \fB\-append\fP action. For example,
\fB\-\-sub\-file\fP is an alias for \fB\-\-sub\-files\-append\fP\&.
.sp
Options of this type can be changed at runtime using the \fBchange\-list\fP
command, which takes the suffix (without the \fB\-\fP) as separate operation
parameter.
.SH CONFIGURATION FILES
.SS Location and Syntax
.sp
You can put all of the options in configuration files which will be read every
time mpv is run. The system\-wide configuration file \(aqmpv.conf\(aq is in your
configuration directory (e.g. \fB/etc/mpv\fP or \fB/usr/local/etc/mpv\fP), the
user\-specific one is \fB~/.config/mpv/mpv.conf\fP\&. For details and platform
specifics (in particular Windows paths) see the \fI\%FILES\fP section.
.sp
User\-specific options override system\-wide options and options given on the
command line override either. The syntax of the configuration files is
\fBoption=value\fP\&. Everything after a \fI#\fP is considered a comment. Options
that work without values can be enabled by setting them to \fIyes\fP and disabled by
setting them to \fIno\fP\&. Even suboptions can be specified in this way.
.INDENT 0.0
.INDENT 3.5
.IP "Example configuration file"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
# Use GPU\-accelerated video output by default.
vo=gpu
# Use quotes for text that can contain spaces:
status\-msg="Time: ${time\-pos}"
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SS Escaping spaces and special characters
.sp
This is done like with command line options. The shell is not involved here,
but option values still need to be quoted as a whole if it contains certain
characters like spaces. A config entry can be quoted with \fB"\fP,
as well as with the fixed\-length syntax (\fB%n%\fP) mentioned before. This is like
passing the exact contents of the quoted string as command line option. C\-style
escapes are currently _not_ interpreted on this level, although some options do
this manually. (This is a mess and should probably be changed at some point.)
.SS Putting Command Line Options into the Configuration File
.sp
Almost all command line options can be put into the configuration file. Here
is a small guide:
.TS
center;
|l|l|.
_
T{
Option
T}	T{
Configuration file entry
T}
_
T{
\fB\-\-flag\fP
T}	T{
\fBflag\fP
T}
_
T{
\fB\-opt val\fP
T}	T{
\fBopt=val\fP
T}
_
T{
\fB\-\-opt=val\fP
T}	T{
\fBopt=val\fP
T}
_
T{
\fB\-opt "has spaces"\fP
T}	T{
\fBopt="has spaces"\fP
T}
_
.TE
.SS File\-specific Configuration Files
.sp
You can also write file\-specific configuration files. If you wish to have a
configuration file for a file called \(aqvideo.avi\(aq, create a file named
\(aqvideo.avi.conf\(aq with the file\-specific options in it and put it in
\fB~/.config/mpv/\fP\&. You can also put the configuration file in the same directory
as the file to be played. Both require you to set the \fB\-\-use\-filedir\-conf\fP
option (either on the command line or in your global config file). If a
file\-specific configuration file is found in the same directory, no
file\-specific configuration is loaded from \fB~/.config/mpv\fP\&. In addition, the
\fB\-\-use\-filedir\-conf\fP option enables directory\-specific configuration files.
For this, mpv first tries to load a mpv.conf from the same directory
as the file played and then tries to load any file\-specific configuration.
.SS Profiles
.sp
To ease working with different configurations, profiles can be defined in the
configuration files. A profile starts with its name in square brackets,
e.g. \fB[my\-profile]\fP\&. All following options will be part of the profile. A
description (shown by \fB\-\-profile=help\fP) can be defined with the
\fBprofile\-desc\fP option. To end the profile, start another one or use the
profile name \fBdefault\fP to continue with normal options.
.sp
You can list profiles with \fB\-\-profile=help\fP, and show the contents of a
profile with \fB\-\-show\-profile=<name>\fP (replace \fB<name>\fP with the profile
name). You can apply profiles on start with the \fB\-\-profile=<name>\fP option,
or at runtime with the \fBapply\-profile <name>\fP command.
.INDENT 0.0
.INDENT 3.5
.IP "Example mpv config file with profiles"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
# normal top\-level option
fullscreen=yes

# a profile that can be enabled with \-\-profile=big\-cache
[big\-cache]
cache=yes
demuxer\-max\-bytes=123400KiB
demuxer\-readahead\-secs=20

[slow]
profile\-desc="some profile name"
# reference a builtin profile
profile=gpu\-hq

[fast]
vo=vdpau

# using a profile again extends it
[slow]
framedrop=no
# you can also include other profiles
profile=big\-cache
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SS Auto profiles
.sp
Some profiles are loaded automatically. The following example demonstrates this:
.INDENT 0.0
.INDENT 3.5
.IP "Auto profile loading"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
[extension.mkv]
profile\-desc="profile for .mkv files"
vf=flip
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
The profile name follows the schema \fBtype.name\fP, where type can be
\fBprotocol\fP for the input/output protocol in use (see \fB\-\-list\-protocols\fP),
and \fBextension\fP for the extension of the path of the currently played file
(\fInot\fP the file format).
.sp
This feature is very limited, and there are no other auto profiles.
.SH USING MPV FROM OTHER PROGRAMS OR SCRIPTS
.sp
There are three choices for using mpv from other programs or scripts:
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.IP 1. 3
Calling it as UNIX process. If you do this, \fIdo not parse terminal output\fP\&.
The terminal output is intended for humans, and may change any time. In
addition, terminal behavior itself may change any time. Compatibility
cannot be guaranteed.
.sp
Your code should work even if you pass \fB\-\-no\-terminal\fP\&. Do not attempt
to simulate user input by sending terminal control codes to mpv\(aqs stdin.
If you need interactive control, using \fB\-\-input\-ipc\-server\fP is
recommended. This gives you access to the \fI\%JSON IPC\fP  over unix domain
sockets (or named pipes on Windows).
.sp
Depending on what you do, passing \fB\-\-no\-config\fP or \fB\-\-config\-dir\fP may
be a good idea to avoid conflicts with the normal mpv user configuration
intended for CLI playback.
.sp
Using \fB\-\-input\-ipc\-server\fP is also suitable for purposes like remote
control (however, the IPC protocol itself is not "secure" and not
intended to be so).
.IP 2. 3
Using libmpv. This is generally recommended when mpv is used as playback
backend for a completely different application. The provided C API is
very close to CLI mechanisms and the scripting API.
.sp
Note that even though libmpv has different defaults, it can be configured
to work exactly like the CLI player (except command line parsing is
unavailable).
.sp
See \fI\%EMBEDDING INTO OTHER PROGRAMS (LIBMPV)\fP\&.
.IP 3. 3
As a user script (\fI\%LUA SCRIPTING\fP, \fI\%JAVASCRIPT\fP, \fI\%C PLUGINS\fP). This is
recommended when the goal is to "enhance" the CLI player. Scripts get
access to the entire client API of mpv.
.sp
This is the standard way to create third\-party extensions for the player.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
All these access the client API, which is the sum of the various mechanisms
provided by the player core, as documented here: \fI\%OPTIONS\fP,
\fI\%List of Input Commands\fP, \fI\%Properties\fP, \fI\%List of events\fP (also see C API),
\fI\%Hooks\fP\&.
.SH TAKING SCREENSHOTS
.sp
Screenshots of the currently played file can be taken using the \(aqscreenshot\(aq
input mode command, which is by default bound to the \fBs\fP key. Files named
\fBmpv\-shotNNNN.jpg\fP will be saved in the working directory, using the first
available number \- no files will be overwritten. In pseudo\-GUI mode, the
screenshot will be saved somewhere else. See \fI\%PSEUDO GUI MODE\fP\&.
.sp
A screenshot will usually contain the unscaled video contents at the end of the
video filter chain and subtitles. By default, \fBS\fP takes screenshots without
subtitles, while \fBs\fP includes subtitles.
.sp
Unlike with MPlayer, the \fBscreenshot\fP video filter is not required. This
filter was never required in mpv, and has been removed.
.SH TERMINAL STATUS LINE
.sp
During playback, mpv shows the playback status on the terminal. It looks like
something like this:
.INDENT 0.0
.INDENT 3.5
\fBAV: 00:03:12 / 00:24:25 (13%) A\-V: \-0.000\fP
.UNINDENT
.UNINDENT
.sp
The status line can be overridden with the \fB\-\-term\-status\-msg\fP option.
.sp
The following is a list of things that can show up in the status line. Input
properties, that can be used to get the same information manually, are also
listed.
.INDENT 0.0
.IP \(bu 2
\fBAV:\fP or \fBV:\fP (video only) or \fBA:\fP (audio only)
.IP \(bu 2
The current time position in \fBHH:MM:SS\fP format (\fBplayback\-time\fP property)
.IP \(bu 2
The total file duration (absent if unknown) (\fBlength\fP property)
.IP \(bu 2
Playback speed, e.g. \(ga\(ga x2.0\(ga\(ga. Only visible if the speed is not normal. This
is the user\-requested speed, and not the actual speed  (usually they should
be the same, unless playback is too slow). (\fBspeed\fP property.)
.IP \(bu 2
Playback percentage, e.g. \fB(13%)\fP\&. How much of the file has been played.
Normally calculated out of playback position and duration, but can fallback
to other methods (like byte position) if these are not available.
(\fBpercent\-pos\fP property.)
.IP \(bu 2
The audio/video sync as \fBA\-V:  0.000\fP\&. This is the difference between
audio and video time. Normally it should be 0 or close to 0. If it\(aqs growing,
it might indicate a playback problem. (\fBavsync\fP property.)
.IP \(bu 2
Total A/V sync change, e.g. \fBct: \-0.417\fP\&. Normally invisible. Can show up
if there is audio "missing", or not enough frames can be dropped. Usually
this will indicate a problem. (\fBtotal\-avsync\-change\fP property.)
.IP \(bu 2
Encoding state in \fB{...}\fP, only shown in encoding mode.
.IP \(bu 2
Display sync state. If display sync is active (\fBdisplay\-sync\-active\fP
property), this shows \fBDS: 2.500/13\fP, where the first number is average
number of vsyncs per video frame (e.g. 2.5 when playing 24Hz videos on 60Hz
screens), which might jitter if the ratio doesn\(aqt round off, or there are
mistimed frames (\fBvsync\-ratio\fP), and the second number of estimated number
of vsyncs which took too long (\fBvo\-delayed\-frame\-count\fP property). The
latter is a heuristic, as it\(aqs generally not possible to determine this with
certainty.
.IP \(bu 2
Dropped frames, e.g. \fBDropped: 4\fP\&. Shows up only if the count is not 0. Can
grow if the video framerate is higher than that of the display, or if video
rendering is too slow. May also be incremented on "hiccups" and when the video
frame couldn\(aqt be displayed on time. (\fBvo\-drop\-frame\-count\fP property.)
If the decoder drops frames, the number of decoder\-dropped frames is appended
to the display as well, e.g.: \fBDropped: 4/34\fP\&. This happens only if
decoder frame dropping is enabled with the \fB\-\-framedrop\fP options.
(\fBdrop\-frame\-count\fP property.)
.IP \(bu 2
Cache state, e.g. \fBCache:  2s/134KB\fP\&. Visible if the stream cache is enabled.
The first value shows the amount of video buffered in the demuxer in seconds,
the second value shows the estimated size of the buffered amount in kilobytes.
(\fBdemuxer\-cache\-duration\fP and \fBdemuxer\-cache\-state\fP properties.)
.UNINDENT
.SH LOW LATENCY PLAYBACK
.sp
mpv is optimized for normal video playback, meaning it actually tries to buffer
as much data as it seems to make sense. This will increase latency. Reducing
latency is possible only by specifically disabling features which increase
latency.
.sp
The builtin \fBlow\-latency\fP profile tries to apply some of the options which can
reduce latency. You can use  \fB\-\-profile=low\-latency\fP to apply all of them. You
can list the contents with \fB\-\-show\-profile=low\-latency\fP (some of the options
are quite obscure, and may change every mpv release).
.sp
Be aware that some of the options can reduce playback quality.
.sp
Most latency is actually caused by inconvenient timing behavior. You can disable
this with \fB\-\-untimed\fP, but it will likely break, unless the stream has no
audio, and the input feeds data to the player at a constant rate.
.sp
Another common problem is with MJPEG streams. These do not signal the correct
framerate. Using \fB\-\-untimed\fP or \fB\-\-no\-correct\-pts \-\-fps=60\fP might help.
.sp
For livestreams, data can build up due to pausing the stream, due to slightly
lower playback rate, or "buffering" pauses. If the demuxer cache is enabled,
these can be skipped manually. The experimental \fBdrop\-buffers\fP command can
be used to discard any buffered data, though it\(aqs very disruptive.
.sp
In some cases, manually tuning TCP buffer sizes and such can help to reduce
latency.
.sp
Additional options that can be tried:
.INDENT 0.0
.IP \(bu 2
\fB\-\-opengl\-glfinish=yes\fP, can reduce buffering in the graphics driver
.IP \(bu 2
\fB\-\-opengl\-swapinterval=0\fP, same
.IP \(bu 2
\fB\-\-vo=xv\fP, same
.IP \(bu 2
without audio \fB\-\-framedrop=no \-\-speed=1.01\fP may help for live sources
(results can be mixed)
.UNINDENT
.SH PROTOCOLS
.sp
\fBhttp://...\fP, \fBhttps://\fP, ...
.INDENT 0.0
.INDENT 3.5
Many network protocols are supported, but the protocol prefix must always
be specified. mpv will never attempt to guess whether a filename is
actually a network address. A protocol prefix is always required.
.sp
Note that not all prefixes are documented here. Undocumented prefixes are
either aliases to documented protocols, or are just redirections to
protocols implemented and documented in FFmpeg.
.sp
\fBdata:\fP is supported in FFmpeg (not in Libav), but needs to be in the
format \fBdata://\fP\&. This is done to avoid ambiguity with filenames. You
can also prefix it with \fBlavf://\fP or \fBffmpeg://\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBytdl://...\fP
.INDENT 0.0
.INDENT 3.5
By default, the youtube\-dl hook script only looks at http(s) URLs. Prefixing
an URL with \fBytdl://\fP forces it to be always processed by the script. This
can also be used to invoke special youtube\-dl functionality like playing a
video by ID or invoking search.
.sp
Keep in mind that you can\(aqt pass youtube\-dl command line options by this,
and you have to use \fB\-\-ytdl\-raw\-options\fP instead.
.UNINDENT
.UNINDENT
.sp
\fB\-\fP
.INDENT 0.0
.INDENT 3.5
Play data from stdin.
.UNINDENT
.UNINDENT
.sp
\fBsmb://PATH\fP
.INDENT 0.0
.INDENT 3.5
Play a path from  Samba share.
.UNINDENT
.UNINDENT
.sp
\fBbd://[title][/device]\fP \fB\-\-bluray\-device=PATH\fP
.INDENT 0.0
.INDENT 3.5
Play a Blu\-ray disc. Since libbluray 1.0.1, you can read from ISO files
by passing them to \fB\-\-bluray\-device\fP\&.
.sp
\fBtitle\fP can be: \fBlongest\fP or \fBfirst\fP (selects the default
playlist); \fBmpls/<number>\fP (selects <number>.mpls playlist);
\fB<number>\fP (select playlist with the same index). mpv will list
the available playlists on loading.
.sp
\fBbluray://\fP is an alias.
.UNINDENT
.UNINDENT
.sp
\fBdvd://[title][/device]\fP \fB\-\-dvd\-device=PATH\fP
.INDENT 0.0
.INDENT 3.5
Play a DVD. DVD menus are not supported. If no title is given, the longest
title is auto\-selected. Without \fB\-\-dvd\-device\fP, it will probably try
to open an actual optical drive, if available and implemented for the OS.
.sp
\fBdvdnav://\fP is an old alias for \fBdvd://\fP and does exactly the same
thing.
.UNINDENT
.UNINDENT
.sp
\fBdvb://[cardnumber@]channel\fP \fB\-\-dvbin\-...\fP
.INDENT 0.0
.INDENT 3.5
Digital TV via DVB. (Linux only.)
.UNINDENT
.UNINDENT
.sp
\fBmf://[filemask|@listfile]\fP \fB\-\-mf\-...\fP
.INDENT 0.0
.INDENT 3.5
Play a series of images as video.
.UNINDENT
.UNINDENT
.sp
\fBcdda://[device]\fP \fB\-\-cdrom\-device=PATH\fP \fB\-\-cdda\-...\fP
.INDENT 0.0
.INDENT 3.5
Play CD.
.UNINDENT
.UNINDENT
.sp
\fBlavf://...\fP
.INDENT 0.0
.INDENT 3.5
Access any FFmpeg/Libav libavformat protocol. Basically, this passed the
string after the \fB//\fP directly to libavformat.
.UNINDENT
.UNINDENT
.sp
\fBav://type:options\fP
.INDENT 0.0
.INDENT 3.5
This is intended for using libavdevice inputs. \fBtype\fP is the libavdevice
demuxer name, and \fBoptions\fP is the (pseudo\-)filename passed to the
demuxer.
.INDENT 0.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv av://v4l2:/dev/video0 \-\-profile=low\-latency \-\-untimed
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This plays video from the first v4l input with nearly the lowest latency
possible. It\(aqs a good replacement for the removed \fBtv://\fP input.
Using \fB\-\-untimed\fP is a hack to output a captured frame immediately,
instead of respecting the input framerate. (There may be better ways to
handle this in the future.)
.UNINDENT
.UNINDENT
.sp
\fBavdevice://\fP is an alias.
.UNINDENT
.UNINDENT
.sp
\fBfile://PATH\fP
.INDENT 0.0
.INDENT 3.5
A local path as URL. Might be useful in some special use\-cases. Note that
\fBPATH\fP itself should start with a third \fB/\fP to make the path an
absolute path.
.UNINDENT
.UNINDENT
.sp
\fBappending://PATH\fP
.INDENT 0.0
.INDENT 3.5
Play a local file, but assume it\(aqs being appended to. This is useful for
example for files that are currently being downloaded to disk. This will
block playback, and stop playback only if no new data was appended after
a timeout of about 2 seconds.
.sp
Using this is still a bit of a bad idea, because there is no way to detect
if a file is actually being appended, or if it\(aqs still written. If you\(aqre
trying to play the  output of some program, consider using a pipe
(\fBsomething | mpv \-\fP). If it really has to be a file on disk, use tail to
make it wait forever, e.g. \fBtail \-f \-c +0 file.mkv | mpv \-\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBfd://123\fP
.INDENT 0.0
.INDENT 3.5
Read data from the given file descriptor (for example 123). This is similar
to piping data to stdin via \fB\-\fP, but can use an arbitrary file descriptor.
mpv may modify some file descriptor properties when the stream layer "opens"
it.
.UNINDENT
.UNINDENT
.sp
\fBfdclose://123\fP
.INDENT 0.0
.INDENT 3.5
Like \fBfd://\fP, but the file descriptor is closed after use. When using this
you need to ensure that the same fd URL will only be used once.
.UNINDENT
.UNINDENT
.sp
\fBedl://[edl specification as in edl\-mpv.rst]\fP
.INDENT 0.0
.INDENT 3.5
Stitch together parts of multiple files and play them.
.UNINDENT
.UNINDENT
.sp
\fBnull://\fP
.INDENT 0.0
.INDENT 3.5
Simulate an empty file. If opened for writing, it will discard all data.
The \fBnull\fP demuxer will specifically pass autoprobing if this protocol
is used (while it\(aqs not automatically invoked for empty files).
.UNINDENT
.UNINDENT
.sp
\fBmemory://data\fP
.INDENT 0.0
.INDENT 3.5
Use the \fBdata\fP part as source data.
.UNINDENT
.UNINDENT
.sp
\fBhex://data\fP
.INDENT 0.0
.INDENT 3.5
Like \fBmemory://\fP, but the string is interpreted as hexdump.
.UNINDENT
.UNINDENT
.SH PSEUDO GUI MODE
.sp
mpv has no official GUI, other than the OSC (\fI\%ON SCREEN CONTROLLER\fP), which
is not a full GUI and is not meant to be. However, to compensate for the lack
of expected GUI behavior, mpv will in some cases start with some settings
changed to behave slightly more like a GUI mode.
.sp
Currently this happens only in the following cases:
.INDENT 0.0
.IP \(bu 2
if started using the \fBmpv.desktop\fP file on Linux (e.g. started from menus
or file associations provided by desktop environments)
.IP \(bu 2
if started from explorer.exe on Windows (technically, if it was started on
Windows, and all of the stdout/stderr/stdin handles are unset)
.IP \(bu 2
started out of the bundle on OSX
.IP \(bu 2
if you manually use \fB\-\-player\-operation\-mode=pseudo\-gui\fP on the command line
.UNINDENT
.sp
This mode applies options from the builtin profile \fBbuiltin\-pseudo\-gui\fP, but
only if these haven\(aqt been set in the user\(aqs config file or on the command line.
Also, for compatibility with the old pseudo\-gui behavior, the options in the
\fBpseudo\-gui\fP profile are applied unconditionally. In addition, the profile
makes sure to enable the pseudo\-GUI mode, so that \fB\-\-profile=pseudo\-gui\fP
works like in older mpv releases. The profiles are currently defined as follows:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
[builtin\-pseudo\-gui]
terminal=no
force\-window=yes
idle=once
screenshot\-directory=~~desktop/
[pseudo\-gui]
player\-operation\-mode=pseudo\-gui
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 0.0
.INDENT 3.5
Currently, you can extend the \fBpseudo\-gui\fP profile in the config file the
normal way. This is deprecated. In future mpv releases, the behavior might
change, and not apply your additional settings, and/or use a different
profile name.
.UNINDENT
.UNINDENT
.SH OPTIONS
.SS Track Selection
.INDENT 0.0
.TP
.B \fB\-\-alang=<languagecode[,languagecode,...]>\fP
Specify a priority list of audio languages to use. Different container
formats employ different language codes. DVDs use ISO 639\-1 two\-letter
language codes, Matroska, MPEG\-TS and NUT use ISO 639\-2 three\-letter
language codes, while OGM uses a free\-form identifier. See also \fB\-\-aid\fP\&.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fBmpv dvd://1 \-\-alang=hu,en\fP chooses the Hungarian language track
on a DVD and falls back on English if Hungarian is not available.
.IP \(bu 2
\fBmpv \-\-alang=jpn example.mkv\fP plays a Matroska file with Japanese
audio.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-slang=<languagecode[,languagecode,...]>\fP
Specify a priority list of subtitle languages to use. Different container
formats employ different language codes. DVDs use ISO 639\-1 two letter
language codes, Matroska uses ISO 639\-2 three letter language codes while
OGM uses a free\-form identifier. See also \fB\-\-sid\fP\&.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fBmpv dvd://1 \-\-slang=hu,en\fP chooses the Hungarian subtitle track on
a DVD and falls back on English if Hungarian is not available.
.IP \(bu 2
\fBmpv \-\-slang=jpn example.mkv\fP plays a Matroska file with Japanese
subtitles.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-vlang=<...>\fP
Equivalent to \fB\-\-alang\fP and \fB\-\-slang\fP, for video tracks.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-aid=<ID|auto|no>\fP
Select audio track. \fBauto\fP selects the default, \fBno\fP disables audio.
See also \fB\-\-alang\fP\&. mpv normally prints available audio tracks on the
terminal when starting playback of a file.
.sp
\fB\-\-audio\fP is an alias for \fB\-\-aid\fP\&.
.sp
\fB\-\-aid=no\fP or \fB\-\-audio=no\fP or \fB\-\-no\-audio\fP disables audio playback.
(The latter variant does not work with the client API.)
.TP
.B \fB\-\-sid=<ID|auto|no>\fP
Display the subtitle stream specified by \fB<ID>\fP\&. \fBauto\fP selects
the default, \fBno\fP disables subtitles.
.sp
\fB\-\-sub\fP is an alias for \fB\-\-sid\fP\&.
.sp
\fB\-\-sid=no\fP or \fB\-\-sub=no\fP or \fB\-\-no\-sub\fP disables subtitle decoding.
(The latter variant does not work with the client API.)
.TP
.B \fB\-\-vid=<ID|auto|no>\fP
Select video channel. \fBauto\fP selects the default, \fBno\fP disables video.
.sp
\fB\-\-video\fP is an alias for \fB\-\-vid\fP\&.
.sp
\fB\-\-vid=no\fP or \fB\-\-video=no\fP or \fB\-\-no\-video\fP disables video playback.
(The latter variant does not work with the client API.)
.sp
If video is disabled, mpv will try to download the audio only if media is
streamed with youtube\-dl, because it saves bandwidth. This is done by
setting the ytdl_format to "bestaudio/best" in the ytdl_hook.lua script.
.TP
.B \fB\-\-edition=<ID|auto>\fP
(Matroska files only)
Specify the edition (set of chapters) to use, where 0 is the first. If set
to \fBauto\fP (the default), mpv will choose the first edition declared as a
default, or if there is no default, the first edition defined.
.TP
.B \fB\-\-track\-auto\-selection=<yes|no>\fP
Enable the default track auto\-selection (default: yes). Enabling this will
make the player select streams according to \fB\-\-aid\fP, \fB\-\-alang\fP, and
others. If it is disabled, no tracks are selected. In addition, the player
will not exit if no tracks are selected, and wait instead (this wait mode
is similar to pausing, but the pause option is not set).
.sp
This is useful with \fB\-\-lavfi\-complex\fP: you can start playback in this
mode, and then set select tracks at runtime by setting the filter graph.
Note that if \fB\-\-lavfi\-complex\fP is set before playback is started, the
referenced tracks are always selected.
.UNINDENT
.SS Playback Control
.INDENT 0.0
.TP
.B \fB\-\-start=<relative time>\fP
Seek to given time position.
.sp
The general format for times is \fB[+|\-][[hh:]mm:]ss[.ms]\fP\&. If the time is
prefixed with \fB\-\fP, the time is considered relative from the end of the
file (as signaled by the demuxer/the file). A \fB+\fP is usually ignored (but
see below).
.sp
The following alternative time specifications are recognized:
.sp
\fBpp%\fP seeks to percent position pp (0\-100).
.sp
\fB#c\fP seeks to chapter number c. (Chapters start from 1.)
.sp
\fBnone\fP resets any previously set option (useful for libmpv).
.sp
If \fB\-\-rebase\-start\-time=no\fP is given, then prefixing times with \fB+\fP
makes the time relative to the start of the file. A timestamp without
prefix is considered an absolute time, i.e. should seek to a frame with a
timestamp as the file contains it. As a bug, but also a hidden feature,
putting 1 or more spaces before the \fB+\fP or \fB\-\fP always interprets the
time as absolute, which can be used to seek to negative timestamps (useful
for debugging at most).
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB\-\-start=+56\fP, \fB\-\-start=00:56\fP
Seeks to the start time + 56 seconds.
.TP
.B \fB\-\-start=\-56\fP, \fB\-\-start=\-00:56\fP
Seeks to the end time \- 56 seconds.
.TP
.B \fB\-\-start=01:10:00\fP
Seeks to 1 hour 10 min.
.TP
.B \fB\-\-start=50%\fP
Seeks to the middle of the file.
.TP
.B \fB\-\-start=30 \-\-end=40\fP
Seeks to 30 seconds, plays 10 seconds, and exits.
.TP
.B \fB\-\-start=\-3:20 \-\-length=10\fP
Seeks to 3 minutes and 20 seconds before the end of the file, plays
10 seconds, and exits.
.TP
.B \fB\-\-start=\(aq#2\(aq \-\-end=\(aq#4\(aq\fP
Plays chapters 2 and 3, and exits.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-end=<relative time>\fP
Stop at given time. Use \fB\-\-length\fP if the time should be relative
to \fB\-\-start\fP\&. See \fB\-\-start\fP for valid option values and examples.
.TP
.B \fB\-\-length=<relative time>\fP
Stop after a given time relative to the start time.
See \fB\-\-start\fP for valid option values and examples.
.sp
If both \fB\-\-end\fP and \fB\-\-length\fP are provided, playback will stop when it
reaches either of the two endpoints.
.sp
Obscurity note: this does not work correctly if \fB\-\-rebase\-start\-time=no\fP,
and the specified time is not an "absolute" time, as defined in the
\fB\-\-start\fP option description.
.TP
.B \fB\-\-rebase\-start\-time=<yes|no>\fP
Whether to move the file start time to \fB00:00:00\fP (default: yes). This
is less awkward for files which start at a random timestamp, such as
transport streams. On the other hand, if there are timestamp resets, the
resulting behavior can be rather weird. For this reason, and in case you
are actually interested in the real timestamps, this behavior can be
disabled with \fBno\fP\&.
.TP
.B \fB\-\-speed=<0.01\-100>\fP
Slow down or speed up playback by the factor given as parameter.
.sp
If \fB\-\-audio\-pitch\-correction\fP (on by default) is used, playing with a
speed higher than normal automatically inserts the \fBscaletempo\fP audio
filter.
.TP
.B \fB\-\-pause\fP
Start the player in paused state.
.TP
.B \fB\-\-shuffle\fP
Play files in random order.
.TP
.B \fB\-\-playlist\-start=<auto|index>\fP
Set which file on the internal playlist to start playback with. The index
is an integer, with 0 meaning the first file. The value \fBauto\fP means that
the selection of the entry to play is left to the playback resume mechanism
(default). If an entry with the given index doesn\(aqt exist, the behavior is
unspecified and might change in future mpv versions. The same applies if
the playlist contains further playlists (don\(aqt expect any reasonable
behavior). Passing a playlist file to mpv should work with this option,
though. E.g. \fBmpv playlist.m3u \-\-playlist\-start=123\fP will work as expected,
as long as \fBplaylist.m3u\fP does not link to further playlists.
.sp
The value \fBno\fP is a deprecated alias for \fBauto\fP\&.
.TP
.B \fB\-\-playlist=<filename>\fP
Play files according to a playlist file (Supports some common formats. If
no format is detected, it will be treated as list of files, separated by
newline characters. Note that XML playlist formats are not supported.)
.sp
You can play playlists directly and without this option, however, this
option disables any security mechanisms that might be in place. You may
also need this option to load plaintext files as playlist.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
The way mpv uses playlist files via \fB\-\-playlist\fP is not safe against
maliciously constructed files. Such files may trigger harmful actions.
This has been the case for all mpv and MPlayer versions, but
unfortunately this fact was not well documented earlier, and some people
have even misguidedly recommended use of \fB\-\-playlist\fP with untrusted
sources. Do NOT use \fB\-\-playlist\fP with random internet sources or files
you do not trust!
.sp
Playlist can contain entries using other protocols, such as local files,
or (most severely), special protocols like \fBavdevice://\fP, which are
inherently unsafe.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-chapter\-merge\-threshold=<number>\fP
Threshold for merging almost consecutive ordered chapter parts in
milliseconds (default: 100). Some Matroska files with ordered chapters
have inaccurate chapter end timestamps, causing a small gap between the
end of one chapter and the start of the next one when they should match.
If the end of one playback part is less than the given threshold away from
the start of the next one then keep playing video normally over the
chapter change instead of doing a seek.
.TP
.B \fB\-\-chapter\-seek\-threshold=<seconds>\fP
Distance in seconds from the beginning of a chapter within which a backward
chapter seek will go to the previous chapter (default: 5.0). Past this
threshold, a backward chapter seek will go to the beginning of the current
chapter instead. A negative value means always go back to the previous
chapter.
.TP
.B \fB\-\-hr\-seek=<no|absolute|yes>\fP
Select when to use precise seeks that are not limited to keyframes. Such
seeks require decoding video from the previous keyframe up to the target
position and so can take some time depending on decoding performance. For
some video formats, precise seeks are disabled. This option selects the
default choice to use for seeks; it is possible to explicitly override that
default in the definition of key bindings and in input commands.
.INDENT 7.0
.TP
.B no
Never use precise seeks.
.TP
.B absolute
Use precise seeks if the seek is to an absolute position in the
file, such as a chapter seek, but not for relative seeks like
the default behavior of arrow keys (default).
.TP
.B yes
Use precise seeks whenever possible.
.TP
.B always
Same as \fByes\fP (for compatibility).
.UNINDENT
.TP
.B \fB\-\-hr\-seek\-demuxer\-offset=<seconds>\fP
This option exists to work around failures to do precise seeks (as in
\fB\-\-hr\-seek\fP) caused by bugs or limitations in the demuxers for some file
formats. Some demuxers fail to seek to a keyframe before the given target
position, going to a later position instead. The value of this option is
subtracted from the time stamp given to the demuxer. Thus, if you set this
option to 1.5 and try to do a precise seek to 60 seconds, the demuxer is
told to seek to time 58.5, which hopefully reduces the chance that it
erroneously goes to some time later than 60 seconds. The downside of
setting this option is that precise seeks become slower, as video between
the earlier demuxer position and the real target may be unnecessarily
decoded.
.TP
.B \fB\-\-hr\-seek\-framedrop=<yes|no>\fP
Allow the video decoder to drop frames during seek, if these frames are
before the seek target. If this is enabled, precise seeking can be faster,
but if you\(aqre using video filters which modify timestamps or add new
frames, it can lead to precise seeking skipping the target frame. This
e.g. can break frame backstepping when deinterlacing is enabled.
.sp
Default: \fByes\fP
.TP
.B \fB\-\-index=<mode>\fP
Controls how to seek in files. Note that if the index is missing from a
file, it will be built on the fly by default, so you don\(aqt need to change
this. But it might help with some broken files.
.INDENT 7.0
.TP
.B default
use an index if the file has one, or build it if missing
.TP
.B recreate
don\(aqt read or use the file\(aqs index
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This option only works if the underlying media supports seeking
(i.e. not with stdin, pipe, etc).
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-load\-unsafe\-playlists\fP
Load URLs from playlists which are considered unsafe (default: no). This
includes special protocols and anything that doesn\(aqt refer to normal files.
Local files and HTTP links on the other hand are always considered safe.
.sp
In addition, if a playlist is loaded while this is set, the added playlist
entries are not marked as originating from network or potentially unsafe
location. (Instead, the behavior is as if the playlist entries were provided
directly to mpv command line or \fBloadfile\fP command.)
.sp
Note that \fB\-\-playlist\fP always loads all entries, so you use that instead
if you really have the need for this functionality.
.TP
.B \fB\-\-access\-references=<yes|no>\fP
Follow any references in the file being opened (default: yes). Disabling
this is helpful if the file is automatically scanned (e.g. thumbnail
generation). If the thumbnail scanner for example encounters a playlist
file, which contains network URLs, and the scanner should not open these,
enabling this option will prevent it. This option also disables ordered
chapters, mov reference files, opening of archives, and a number of other
features.
.sp
On older FFmpeg versions, this will not work in some cases. Some FFmpeg
demuxers might not respect this option.
.sp
This option does not prevent opening of paired subtitle files and such. Use
\fB\-\-autoload\-files=no\fP to prevent this.
.sp
This option does not always work if you open non\-files (for example using
\fBdvd://directory\fP would open a whole bunch of files in the given
directory). Prefixing the filename with \fB\&./\fP if it doesn\(aqt start with
a \fB/\fP will avoid this.
.TP
.B \fB\-\-loop\-playlist=<N|inf|force|no>\fP, \fB\-\-loop\-playlist\fP
Loops playback \fBN\fP times. A value of \fB1\fP plays it one time (default),
\fB2\fP two times, etc. \fBinf\fP means forever. \fBno\fP is the same as \fB1\fP and
disables looping. If several files are specified on command line, the
entire playlist is looped. \fB\-\-loop\-playlist\fP is the same as
\fB\-\-loop\-playlist=inf\fP\&.
.sp
The \fBforce\fP mode is like \fBinf\fP, but does not skip playlist entries
which have been marked as failing. This means the player might waste CPU
time trying to loop a file that doesn\(aqt exist. But it might be useful for
playing webradios under very bad network conditions.
.TP
.B \fB\-\-loop\-file=<N|inf|no>\fP, \fB\-\-loop=<N|inf|no>\fP
Loop a single file N times. \fBinf\fP means forever, \fBno\fP means normal
playback. For compatibility, \fB\-\-loop\-file\fP and \fB\-\-loop\-file=yes\fP are
also accepted, and are the same as \fB\-\-loop\-file=inf\fP\&.
.sp
The difference to \fB\-\-loop\-playlist\fP is that this doesn\(aqt loop the playlist,
just the file itself. If the playlist contains only a single file, the
difference between the two option is that this option performs a seek on
loop, instead of reloading the file.
.sp
\fB\-\-loop\fP is an alias for this option.
.TP
.B \fB\-\-ab\-loop\-a=<time>\fP, \fB\-\-ab\-loop\-b=<time>\fP
Set loop points. If playback passes the \fBb\fP timestamp, it will seek to
the \fBa\fP timestamp. Seeking past the \fBb\fP point doesn\(aqt loop (this is
intentional).
.sp
If \fBa\fP is after \fBb\fP, the behavior is as if the points were given in
the right order, and the player will seek to \fBb\fP after crossing through
\fBa\fP\&. This is different from old behavior, where looping was disabled (and
as a bug, looped back to \fBa\fP on the end of the file).
.sp
If either options are set to \fBno\fP (or unset), looping is disabled. This
is different from old behavior, where an unset \fBa\fP implied the start of
the file, and an unset \fBb\fP the end of the file.
.sp
The loop\-points can be adjusted at runtime with the corresponding
properties. See also \fBab\-loop\fP command.
.TP
.B \fB\-\-ordered\-chapters\fP, \fB\-\-no\-ordered\-chapters\fP
Enabled by default.
Disable support for Matroska ordered chapters. mpv will not load or
search for video segments from other files, and will also ignore any
chapter order specified for the main file.
.TP
.B \fB\-\-ordered\-chapters\-files=<playlist\-file>\fP
Loads the given file as playlist, and tries to use the files contained in
it as reference files when opening a Matroska file that uses ordered
chapters. This overrides the normal mechanism for loading referenced
files by scanning the same directory the main file is located in.
.sp
Useful for loading ordered chapter files that are not located on the local
filesystem, or if the referenced files are in different directories.
.sp
Note: a playlist can be as simple as a text file containing filenames
separated by newlines.
.TP
.B \fB\-\-chapters\-file=<filename>\fP
Load chapters from this file, instead of using the chapter metadata found
in the main file.
.sp
This accepts a media file (like mkv) or even a pseudo\-format like ffmetadata
and uses its chapters to replace the current file\(aqs chapters. This doesn\(aqt
work with OGM or XML chapters directly.
.TP
.B \fB\-\-sstep=<sec>\fP
Skip <sec> seconds after every frame.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Without \fB\-\-hr\-seek\fP, skipping will snap to keyframes.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-stop\-playback\-on\-init\-failure=<yes|no>\fP
Stop playback if either audio or video fails to initialize (default: no).
With \fBno\fP, playback will continue in video\-only or audio\-only mode if one
of them fails. This doesn\(aqt affect playback of audio\-only or video\-only
files.
.TP
.B \fB\-\-play\-dir=<forward|+|backward|\->\fP
Control the playback direction (default: forward). Setting \fBbackward\fP
will attempt to play the file in reverse direction, with decreasing
playback time. If this is set on playback starts, playback will start from
the end of the file. If this is changed at during playback, a hr\-seek will
be issued to change the direction.
.sp
\fB+\fP and \fB\-\fP are aliases for \fBforward\fP and \fBbackward\fP\&.
.sp
The rest of this option description pertains to the \fBbackward\fP mode.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Backward playback is extremely fragile. It may not always work, is much
slower than forward playback, and breaks certain other features. How
well it works depends mainly on the file being played. Generally, it
will show good results (or results at all) only if the stars align.
.UNINDENT
.UNINDENT
.sp
mpv, as well as most media formats, were designed for forward playback
only. Backward playback is bolted on top of mpv, and tries to make a medium
effort to make backward playback work. Depending on your use\-case, another
tool may work much better.
.sp
Backward playback is not exactly a 1st class feature. Implementation
tradeoffs were made, that are bad for backward playback, but in turn do not
cause disadvantages for normal playback. Various possible optimizations are
not implemented in order to keep the complexity down. Normally, a media
player is highly pipelined (future data is prepared in separate threads, so
it is available in realtime when the next stage needs it), but backward
playback will essentially stall the pipeline at various random points.
.sp
For example, for intra\-only codecs are trivially backward playable, and
tools built around them may make efficient use of them (consider video
editors or camera viewers). mpv won\(aqt be efficient in this case, because it
uses its generic backward playback algorithm, that on top of it is not very
optimized.
.sp
If you just want to quickly go backward through the video and just show
"keyframes", just use forward playback, and hold down the left cursor key
(which on CLI with default config sends many small relative seek commands).
.sp
The implementation consists of mostly 3 parts:
.INDENT 7.0
.IP \(bu 2
Backward demuxing. This relies on the demuxer cache, so the demuxer cache
should (or must, didn\(aqt test it) be enabled, and its size will affect
performance. If the cache is too small or too large, quadratic runtime
behavior may result.
.IP \(bu 2
Backward decoding. The decoder library used (libavcodec) does not support
this. It is emulated by feeding bits of data in forward, putting the
result in a queue, returning the queue data to the VO in reverse, and
then starting over at an earlier position. This can require buffering an
extreme amount of decoded data, and also completely breaks pipelining.
.IP \(bu 2
Backward output. This is relatively simple, because the decoder returns
the frames in the needed order. However, this may cause various problems
because filters see audio and video going backward.
.UNINDENT
.sp
Known problems:
.INDENT 7.0
.IP \(bu 2
It\(aqs fragile. If anything doesn\(aqt work, random non\-useful behavior may
occur. In simple cases, the player will just play nonsense and artifacts.
In other cases, it may get stuck or heat the CPU. (Exceeding memory usage
significantly beyond the user\-set limits would be a bug, though.)
.IP \(bu 2
Performance and resource usage isn\(aqt good. In part this is inherent to
backward playback of normal media formats, and in parts due to
implementation choices and tradeoffs.
.IP \(bu 2
This is extremely reliant on good demuxer behavior. Although backward
demuxing requires no special demuxer support, it is required that the
demuxer performs seeks reliably, fulfills some specific requirements
about packet metadata, and has deterministic behavior.
.IP \(bu 2
Starting playback exactly from the end may or may not work, depending on
seeking behavior and file duration detection.
.IP \(bu 2
Some container formats, audio, and video codecs are not supported due to
their behavior. There is no list, and the player usually does not detect
them. Certain live streams (including TV captures) may exhibit problems
in particular, as well as some lossy audio codecs. h264 intra\-refresh is
known not to work due to problems with libavcodec. WAV and some other raw
audio formats tend to have problems \- there are hacks for dealing with
them, which may or may not work.
.IP \(bu 2
Backward demuxing of subtitles is not supported. Subtitle display still
works for some external text subtitle formats. (These are fully read into
memory, and only backward display is needed.) Text subtitles that are
cached in the subtitle renderer also have a chance to be displayed
correctly.
.IP \(bu 2
Some features dealing with playback of broken or hard to deal with files
will not work fully (such as timestamp correction).
.IP \(bu 2
If demuxer low level seeks (i.e. seeking the actual demuxer instead of
just within the demuxer cache) are performed by backward playback, the
created seek ranges may not join, because not enough overlap is achieved.
.IP \(bu 2
Trying to use this with hardware video decoding will probably exhaust all
your GPU memory and then crash a thing or two. Or it will fail because
\fB\-\-hwdec\-extra\-frames\fP will certainly be set too low.
.IP \(bu 2
Stream recording is broken. \fB\-\-stream\-record\fP may keep working if you
backward play within a cached region only.
.IP \(bu 2
Relative seeks may behave weird. Small seeks backward (towards smaller
time, i.e. \fBseek \-1\fP) may not really seek properly, and audio will
remain muted for a while. Using hr\-seek is recommended, which should have
none of these problems.
.IP \(bu 2
Some things are just weird. For example, while seek commands manipulate
playback time in the expected way (provided they work correctly), the
framestep commands are transposed. Backstepping will perform very
expensive work to step forward by 1 frame.
.UNINDENT
.sp
Tuning:
.INDENT 7.0
.IP \(bu 2
Remove all \fB\-\-vf\fP/\fB\-\-af\fP filters you have set. Disable hardware
decoding. Disable idiotic nonsense like SPDIF passthrough.
.IP \(bu 2
Increasing \fB\-\-video\-reversal\-buffer\fP might help if reversal queue
overflow is reported, which may happen in high bitrate video, or video
with large GOP. Hardware decoding mostly ignores this, and you need to
increase \fB\-\-hwdec\-extra\-frames\fP instead (until you get playback without
logged errors).
.IP \(bu 2
The demuxer cache is essential for backward demuxing. Make sure to set
\fB\-\-demuxer\-seekable\-cache\fP (or just use \fB\-\-cache\fP). The cache size
might matter. If it\(aqs too small, a queue overflow will be logged, and
backward playback cannot continue, or it performs too many low level
seeks. If it\(aqs too large, implementation tradeoffs may cause general
performance issues. Use \fB\-\-demuxer\-max\-bytes\fP to potentially increase
the amount of packets the demuxer layer can queue for reverse demuxing
(basically it\(aqs the \fB\-\-video\-reversal\-buffer\fP equivalent for the
demuxer layer).
.IP \(bu 2
\fB\-\-demuxer\-backward\-playback\-step\fP also factors into how many seeks may
be performed, and whether backward demuxing could break due to queue
overflow. If it\(aqs set too high, the backstep operation needs to search
through more packets all the time, even if the cache is large enough.
.IP \(bu 2
Setting \fB\-\-demuxer\-cache\-wait\fP may be useful to cache the entire file
into the demuxer cache. Set \fB\-\-demuxer\-max\-bytes\fP to a large size to
make sure it can read the entire cache; \fB\-\-demuxer\-max\-back\-bytes\fP
should also be set to a large size to prevent that tries to trim the
cache.
.IP \(bu 2
If audio artifacts are audible, even though the AO does not underrun,
increasing \fB\-\-audio\-backward\-overlap\fP might help in some cases.
.UNINDENT
.TP
.B \fB\-\-video\-reversal\-buffer=<bytesize>\fP, \fB\-\-audio\-reversal\-buffer=<bytesize>\fP
For backward decoding. Backward decoding decodes forward in steps, and then
reverses the decoder output. These options control the approximate maximum
amount of bytes that can be buffered. The main use of this is to avoid
unbounded resource usage; during normal backward playback, it\(aqs not supposed
to hit the limit, and if it does, it will drop frames and complain about it.
.sp
Use this option if you get reversal queue overflow errors during backward
playback. Increase the size until the warning disappears. Usually, the video
buffer will overflow first, especially if it\(aqs high resolution video.
.sp
This does not work correctly if video hardware decoding is used. The video
frame size will not include the referenced GPU and driver memory. Some
hardware decoders may also be limited by \fB\-\-hwdec\-extra\-frames\fP\&.
.sp
How large the queue size needs to be depends entirely on the way the media
was encoded. Audio typically requires a very small buffer, while video can
require excessively large buffers.
.sp
(Technically, this allows the last frame to exceed the limit. Also, this
does not account for other buffered frames, such as inside the decoder or
the video output.)
.sp
This does not affect demuxer cache behavior at all.
.sp
See \fB\-\-list\-options\fP for defaults and value range. \fB<bytesize>\fP options
accept suffixes such as \fBKiB\fP and \fBMiB\fP\&.
.TP
.B \fB\-\-video\-backward\-overlap=<auto|number>\fP, \fB\-\-audio\-backward\-overlap=<auto|number>\fP
Number of overlapping keyframe ranges to use for backward decoding (default:
auto) ("keyframe" to be understood as in the mpv/ffmpeg specific meaning).
Backward decoding works by forward decoding in small steps. Some codecs
cannot restart decoding from any packet (even if it\(aqs marked as seek point),
which becomes noticeable with backward decoding (in theory this is a problem
with seeking too, but \fB\-\-hr\-seek\-demuxer\-offset\fP can fix it for seeking).
In particular, MDCT based audio codecs are affected.
.sp
The solution is to feed a previous packet to the decoder each time, and then
discard the output. This option controls how many packets to feed. The
\fBauto\fP choice is currently hardcoded to 0 for video, and uses 1 for lossy
audio, 0 for lossless audio. For some specific lossy audio codecs, this is
set to 2.
.sp
\fB\-\-video\-backward\-overlap\fP can potentially handle intra\-refresh video,
depending on the exact conditions. You may have to use the
\fB\-\-vd\-lavc\-show\-all\fP option as well.
.TP
.B \fB\-\-video\-backward\-batch=<number>\fP, \fB\-\-audio\-backward\-batch=<number>\fP
Number of keyframe ranges to decode at once when backward decoding (default:
1 for video, 10 for audio). Another pointless tuning parameter nobody should
use. This should affect performance only. In theory, setting a number higher
than 1 for audio will reduce overhead due to less frequent backstep
operations and less redundant decoding work due to fewer decoded overlap
frames (see \fB\-\-audio\-backward\-overlap\fP). On the other hand, it requires
a larger reversal buffer, and could make playback less smooth due to
breaking pipelining (e.g. by decoding a lot, and then doing nothing for a
while).
.sp
It probably never makes sense to set \fB\-\-video\-backward\-batch\fP\&. But in
theory, it could help with intra\-only video codecs by reducing backstep
operations.
.TP
.B \fB\-\-demuxer\-backward\-playback\-step=<seconds>\fP
Number of seconds the demuxer should seek back to get new packets during
backward playback (default: 60). This is useful for tuning backward
playback, see \fB\-\-play\-dir\fP for details.
.sp
Setting this to a very low value or 0 may make the player think seeking is
broken, or may make it perform multiple seeks.
.sp
Setting this to a high value may lead to quadratic runtime behavior.
.UNINDENT
.SS Program Behavior
.INDENT 0.0
.TP
.B \fB\-\-help\fP, \fB\-\-h\fP
Show short summary of options.
.sp
You can also pass a string to this option, which will list all top\-level
options which contain the string in the name, e.g. \fB\-\-h=scale\fP for all
options that contain the word \fBscale\fP\&. The special string \fB*\fP lists
all top\-level options.
.TP
.B \fB\-v\fP
Increment verbosity level, one level for each \fB\-v\fP found on the command
line.
.TP
.B \fB\-\-version, \-V\fP
Print version string and exit.
.TP
.B \fB\-\-no\-config\fP
Do not load default configuration files. This prevents loading of both the
user\-level and system\-wide \fBmpv.conf\fP and \fBinput.conf\fP files. Other
configuration files are blocked as well, such as resume playback files.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Files explicitly requested by command line options, like
\fB\-\-include\fP or \fB\-\-use\-filedir\-conf\fP, will still be loaded.
.UNINDENT
.UNINDENT
.sp
See also: \fB\-\-config\-dir\fP\&.
.TP
.B \fB\-\-list\-options\fP
Prints all available options.
.TP
.B \fB\-\-list\-properties\fP
Print a list of the available properties.
.TP
.B \fB\-\-list\-protocols\fP
Print a list of the supported protocols.
.TP
.B \fB\-\-log\-file=<path>\fP
Opens the given path for writing, and print log messages to it. Existing
files will be truncated. The log level is at least \fB\-v \-v\fP, but
can be raised via \fB\-\-msg\-level\fP (the option cannot lower it below the
forced minimum log level).
.TP
.B \fB\-\-config\-dir=<path>\fP
Force a different configuration directory. If this is set, the given
directory is used to load configuration files, and all other configuration
directories are ignored. This means the global mpv configuration directory
as well as per\-user directories are ignored, and overrides through
environment variables (\fBMPV_HOME\fP) are also ignored.
.sp
Note that the \fB\-\-no\-config\fP option takes precedence over this option.
.TP
.B \fB\-\-save\-position\-on\-quit\fP
Always save the current playback position on quit. When this file is
played again later, the player will seek to the old playback position on
start. This does not happen if playback of a file is stopped in any other
way than quitting. For example, going to the next file in the playlist
will not save the position, and start playback at beginning the next time
the file is played.
.sp
This behavior is disabled by default, but is always available when quitting
the player with Shift+Q.
.TP
.B \fB\-\-watch\-later\-directory=<path>\fP
The directory in which to store the "watch later" temporary files.
.sp
The default is a subdirectory named "watch_later" underneath the
config directory (usually \fB~/.config/mpv/\fP).
.TP
.B \fB\-\-dump\-stats=<filename>\fP
Write certain statistics to the given file. The file is truncated on
opening. The file will contain raw samples, each with a timestamp. To
make this file into a readable, the script \fBTOOLS/stats\-conv.py\fP can be
used (which currently displays it as a graph).
.sp
This option is useful for debugging only.
.TP
.B \fB\-\-idle=<no|yes|once>\fP
Makes mpv wait idly instead of quitting when there is no file to play.
Mostly useful in input mode, where mpv can be controlled through input
commands. (Default: \fBno\fP)
.sp
\fBonce\fP will only idle at start and let the player close once the
first playlist has finished playing back.
.TP
.B \fB\-\-include=<configuration\-file>\fP
Specify configuration file to be parsed after the default ones.
.TP
.B \fB\-\-load\-scripts=<yes|no>\fP
If set to \fBno\fP, don\(aqt auto\-load scripts from the \fBscripts\fP
configuration subdirectory (usually \fB~/.config/mpv/scripts/\fP).
(Default: \fByes\fP)
.TP
.B \fB\-\-script=<filename>\fP, \fB\-\-scripts=file1.lua:file2.lua:...\fP
Load a Lua script. The second option allows you to load multiple scripts by
separating them with the path separator (\fB:\fP on Unix, \fB;\fP on Windows).
.sp
\fB\-\-scripts\fP is a path list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-script\-opts=key1=value1,key2=value2,...\fP
Set options for scripts. A script can query an option by key. If an
option is used and what semantics the option value has depends entirely on
the loaded scripts. Values not claimed by any scripts are ignored.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-merge\-files\fP
Pretend that all files passed to mpv are concatenated into a single, big
file. This uses timeline/EDL support internally.
.TP
.B \fB\-\-no\-resume\-playback\fP
Do not restore playback position from the \fBwatch_later\fP configuration
subdirectory (usually \fB~/.config/mpv/watch_later/\fP).
See \fBquit\-watch\-later\fP input command.
.TP
.B \fB\-\-resume\-playback\-check\-mtime\fP
Only restore the playback position from the \fBwatch_later\fP configuration
subdirectory (usually \fB~/.config/mpv/watch_later/\fP) if the file\(aqs
modification time is the same as at the time of saving. This may prevent
skipping forward in files with the same name which have different content.
(Default: \fBno\fP)
.TP
.B \fB\-\-profile=<profile1,profile2,...>\fP
Use the given profile(s), \fB\-\-profile=help\fP displays a list of the
defined profiles.
.TP
.B \fB\-\-reset\-on\-next\-file=<all|option1,option2,...>\fP
Normally, mpv will try to keep all settings when playing the next file on
the playlist, even if they were changed by the user during playback. (This
behavior is the opposite of MPlayer\(aqs, which tries to reset all settings
when starting next file.)
.sp
Default: Do not reset anything.
.sp
This can be changed with this option. It accepts a list of options, and
mpv will reset the value of these options on playback start to the initial
value. The initial value is either the default value, or as set by the
config file or command line.
.sp
In some cases, this might not work as expected. For example, \fB\-\-volume\fP
will only be reset if it is explicitly set in the config file or the
command line.
.sp
The special name \fBall\fP resets as many options as possible.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-reset\-on\-next\-file=pause\fP
Reset pause mode when switching to the next file.
.IP \(bu 2
\fB\-\-reset\-on\-next\-file=fullscreen,speed\fP
Reset fullscreen and playback speed settings if they were changed
during playback.
.IP \(bu 2
\fB\-\-reset\-on\-next\-file=all\fP
Try to reset all settings that were changed during playback.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-write\-filename\-in\-watch\-later\-config\fP
Prepend the watch later config files with the name of the file they refer
to. This is simply written as comment on the top of the file.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This option may expose privacy\-sensitive information and is thus
disabled by default.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-ignore\-path\-in\-watch\-later\-config\fP
Ignore path (i.e. use filename only) when using watch later feature.
(Default: disabled)
.TP
.B \fB\-\-show\-profile=<profile>\fP
Show the description and content of a profile. Lists all profiles if no
parameter is provided.
.TP
.B \fB\-\-use\-filedir\-conf\fP
Look for a file\-specific configuration file in the same directory as the
file that is being played. See \fI\%File\-specific Configuration Files\fP\&.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
May be dangerous if playing from untrusted media.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-ytdl\fP, \fB\-\-no\-ytdl\fP
Enable the youtube\-dl hook\-script. It will look at the input URL, and will
play the video located on the website. This works with many streaming sites,
not just the one that the script is named after. This requires a recent
version of youtube\-dl to be installed on the system. (Enabled by default.)
.sp
If the script can\(aqt do anything with an URL, it will do nothing.
.sp
The \fBtry_ytdl_first\fP script option accepts a boolean \(aqyes\(aq or \(aqno\(aq, and if
\(aqyes\(aq will try parsing the URL with youtube\-dl first, instead of the default
where it\(aqs only after mpv failed to open it. This mostly depends on whether
most of your URLs need youtube\-dl parsing.
.sp
The \fBexclude\fP script option accepts a \fB|\fP\-separated list of URL patterns
which mpv should not use with youtube\-dl. The patterns are matched after
the \fBhttp(s)://\fP part of the URL.
.sp
\fB^\fP matches the beginning of the URL, \fB$\fP matches its end, and you
should use \fB%\fP before any of the characters \fB^$()%|,.[]*+\-?\fP to match
that character.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-script\-opts=ytdl_hook\-exclude=\(aq^youtube%.com\(aq\fP
will exclude any URL that starts with \fBhttp://youtube.com\fP or
\fBhttps://youtube.com\fP\&.
.IP \(bu 2
\fB\-\-script\-opts=ytdl_hook\-exclude=\(aq%.mkv$|%.mp4$\(aq\fP
will exclude any URL that ends with \fB\&.mkv\fP or \fB\&.mp4\fP\&.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
See more lua patterns here: \fI\%https://www.lua.org/manual/5.1/manual.html#5.4.1\fP
.sp
The \fBuse_manifests\fP script option makes mpv use the master manifest URL for
formats like HLS and DASH, if available, allowing for video/audio selection
in runtime. It\(aqs disabled ("no") by default for performance reasons.
.TP
.B \fB\-\-ytdl\-format=<best|worst|mp4|webm|...>\fP
Video format/quality that is directly passed to youtube\-dl. The possible
values are specific to the website and the video, for a given url the
available formats can be found with the command
\fByoutube\-dl \-\-list\-formats URL\fP\&. See youtube\-dl\(aqs documentation for
available aliases.
(Default: youtube\-dl\(aqs default, currently \fBbestvideo+bestaudio/best\fP)
.TP
.B \fB\-\-ytdl\-raw\-options=<key>=<value>[,<key>=<value>[,...]]\fP
Pass arbitrary options to youtube\-dl. Parameter and argument should be
passed as a key\-value pair. Options without argument must include \fB=\fP\&.
.sp
There is no sanity checking so it\(aqs possible to break things (i.e.
passing invalid parameters to youtube\-dl).
.sp
A proxy URL can be passed for youtube\-dl to use it in parsing the website.
This is useful for geo\-restricted URLs. After youtube\-dl parsing, some
URLs also require a proxy for playback, so this can pass that proxy
information to mpv. Take note that SOCKS proxies aren\(aqt supported and
https URLs also bypass the proxy. This is a limitation in FFmpeg.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.IP \(bu 2
\fB\-\-ytdl\-raw\-options=username=user,password=pass\fP
.IP \(bu 2
\fB\-\-ytdl\-raw\-options=force\-ipv6=\fP
.IP \(bu 2
\fB\-\-ytdl\-raw\-options=proxy=[http://127.0.0.1:3128]\fP
.IP \(bu 2
\fB\-\-ytdl\-raw\-options\-append=proxy=http://127.0.0.1:3128\fP
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-load\-stats\-overlay=<yes|no>\fP
Enable the builtin script that shows useful playback information on a key
binding (default: yes). By default, the \fBi\fP key is used (\fBI\fP to make
the overlay permanent).
.TP
.B \fB\-\-load\-osd\-console=<yes|no>\fP
Enable the builtin script that shows a console on a key binding and lets
you enter commands (default: yes). By default,. The \fB\'\fP key is used to
show the console, and \fBESC\fP to hide it again. (This is based on  a user
script called \fBrepl.lua\fP\&.)
.TP
.B \fB\-\-player\-operation\-mode=<cplayer|pseudo\-gui>\fP
For enabling "pseudo GUI mode", which means that the defaults for some
options are changed. This option should not normally be used directly, but
only by mpv internally, or mpv\-provided scripts, config files, or .desktop
files.
.UNINDENT
.SS Video
.INDENT 0.0
.TP
.B \fB\-\-vo=<driver>\fP
Specify the video output backend to be used. See \fI\%VIDEO OUTPUT DRIVERS\fP for
details and descriptions of available drivers.
.TP
.B \fB\-\-vd=<...>\fP
Specify a priority list of video decoders to be used, according to their
family and name. See \fB\-\-ad\fP for further details. Both of these options
use the same syntax and semantics; the only difference is that they
operate on different codec lists.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
See \fB\-\-vd=help\fP for a full list of available decoders.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-vf=<filter1[=parameter1:parameter2:...],filter2,...>\fP
Specify a list of video filters to apply to the video stream. See
\fI\%VIDEO FILTERS\fP for details and descriptions of the available filters.
The option variants \fB\-\-vf\-add\fP, \fB\-\-vf\-pre\fP, \fB\-\-vf\-del\fP and
\fB\-\-vf\-clr\fP exist to modify a previously specified list, but you
should not need these for typical use.
.TP
.B \fB\-\-untimed\fP
Do not sleep when outputting video frames. Useful for benchmarks when used
with \fB\-\-no\-audio.\fP
.TP
.B \fB\-\-framedrop=<mode>\fP
Skip displaying some frames to maintain A/V sync on slow systems, or
playing high framerate video on video outputs that have an upper framerate
limit.
.sp
The argument selects the drop methods, and can be one of the following:
.INDENT 7.0
.TP
.B <no>
Disable any frame dropping. Not recommended, for testing only.
.TP
.B <vo>
Drop late frames on video output (default). This still decodes and
filters all frames, but doesn\(aqt render them on the VO. Drops are
indicated in the terminal status line as \fBDropped:\fP field.
.sp
In audio sync. mode, this drops frames that are outdated at the time of
display. If the decoder is too slow, in theory all frames would have to
be dropped (because all frames are too late) \- to avoid this, frame
dropping stops  if the effective framerate is below 10 FPS.
.sp
In display\-sync. modes (see \fB\-\-video\-sync\fP), this affects only how
A/V drops or repeats frames. If this mode is disabled, A/V desync will
in theory not affect video scheduling anymore (much like the
\fBdisplay\-resample\-desync\fP mode). However, even if disabled, frames
will still be skipped (i.e. dropped) according to the ratio between
video and display frequencies.
.sp
This is the recommended mode, and the default.
.TP
.B <decoder>
Old, decoder\-based framedrop mode. (This is the same as \fB\-\-framedrop=yes\fP
in mpv 0.5.x and before.) This tells the decoder to skip frames (unless
they are needed to decode future frames). May help with slow systems,
but can produce unwatchable choppy output, or even freeze the display
completely.
.sp
This uses a heuristic which may not make sense, and in  general cannot
achieve good results, because the decoder\(aqs frame dropping cannot be
controlled in a predictable manner. Not recommended.
.sp
Even if you want to use this, prefer \fBdecoder+vo\fP for better results.
.sp
The \fB\-\-vd\-lavc\-framedrop\fP option controls what frames to drop.
.TP
.B <decoder+vo>
Enable both modes. Not recommended. Better than just \fBdecoder\fP mode.
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
\fB\-\-vo=vdpau\fP has its own code for the \fBvo\fP framedrop mode. Slight
differences to other VOs are possible.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-video\-latency\-hacks=<yes|no>\fP
Enable some things which tend to reduce video latency by 1 or 2 frames
(default: no). Note that this option might be removed without notice once
the player\(aqs timing code does not inherently need to do these things
anymore.
.sp
This does:
.INDENT 7.0
.IP \(bu 2
Use the demuxer reported FPS for frame dropping. This avoids that the
player needs to decode 1 frame in advance, lowering total latency in
effect. This also means that if the demuxer reported FPS is wrong, or
the video filter chain changes FPS (e.g. deinterlacing), then it could
drop too many or not enough frames.
.IP \(bu 2
Disable waiting for the first video frame. Normally the player waits for
the first video frame to be fully rendered before starting playback
properly. Some VOs will lazily initialize stuff when rendering the first
frame, so if this is not done, there is some likeliness that the VO has
to drop some frames if rendering the first frame takes longer than needed.
.UNINDENT
.TP
.B \fB\-\-override\-display\-fps=<fps>\fP
Set the display FPS used with the \fB\-\-video\-sync=display\-*\fP modes. By
default, a detected value is used. Keep in mind that setting an incorrect
value (even if slightly incorrect) can ruin video playback. On multi\-monitor
systems, there is a chance that the detected value is from the wrong
monitor.
.sp
Set this option only if you have reason to believe the automatically
determined value is wrong.
.TP
.B \fB\-\-display\-fps=<fps>\fP
Deprecated alias for \fB\-\-override\-display\-fps\fP\&.
.TP
.B \fB\-\-hwdec=<api>\fP
Specify the hardware video decoding API that should be used if possible.
Whether hardware decoding is actually done depends on the video codec. If
hardware decoding is not possible, mpv will fall back on software decoding.
.sp
Hardware decoding is not enabled by default, because it is typically an
additional source of errors. It is worth using only if your CPU is too
slow to decode a specific video.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Use the \fBCtrl+h\fP shortcut to toggle hardware decoding at runtime. It
toggles this option between \fBauto\fP and \fBno\fP\&.
.sp
Always enabling HW decoding by putting it into the config file is
discouraged. If you use the Ubuntu package, delete \fB/etc/mpv/mpv.conf\fP,
as the package tries to enable HW decoding by default by setting
\fBhwdec=vaapi\fP (which is less than ideal, and may even cause
sub\-optimal wrappers to be used). Or at least change it to
\fBhwdec=auto\-safe\fP\&.
.UNINDENT
.UNINDENT
.sp
Use one of the auto modes if you want to enable hardware decoding.
Explicitly selecting the mode is mostly meant for testing and debugging.
It\(aqs a bad idea to put explicit selection into the config file if you
want thing to just keep working after updates and so on.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Even if enabled, hardware decoding is still only white\-listed for some
codecs. See \fB\-\-hwdec\-codecs\fP to enable hardware decoding in more cases.
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Which method to choose?"
.INDENT 0.0
.IP \(bu 2
If you only want to enable hardware decoding at runtime, don\(aqt set the
parameter, or put \fBhwdec=no\fP into your \fBmpv.conf\fP (relevant on
distros which force\-enable it by default, such as on Ubuntu). Use the
\fBCtrl+h\fP default binding to enable it at runtime.
.IP \(bu 2
If you\(aqre not sure, but want hardware decoding always enabled by
default, put \fBhwdec=auto\-safe\fP into your \fBmpv.conf\fP, and
acknowledge that this use case is not "really" supported and may cause
problems.
.IP \(bu 2
If you want to test available hardware decoding methods, pass
\fB\-\-hwdec=auto \-\-hwdec\-codecs=all\fP and look at the terminal output.
.IP \(bu 2
If you\(aqre a developer, or want to perform elaborate tests, you may
need any of the other possible option values.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB<api>\fP can be one of the following:
.INDENT 7.0
.TP
.B no
always use software decoding (default)
.TP
.B auto
forcibly enable any hw decoder found (see below)
.TP
.B yes
exactly the same as \fBauto\fP
.TP
.B auto\-safe
enable any whitelisted hw decoder (see below)
.TP
.B auto\-copy
enable best hw decoder with copy\-back (see below)
.TP
.B vdpau
requires \fB\-\-vo=gpu\fP with X11, or \fB\-\-vo=vdpau\fP (Linux only)
.TP
.B vdpau\-copy
copies video back into system RAM (Linux with some GPUs only)
.TP
.B vaapi
requires \fB\-\-vo=gpu\fP or \fB\-\-vo=vaapi\fP (Linux only)
.TP
.B vaapi\-copy
copies video back into system RAM (Linux with some GPUs only)
.TP
.B videotoolbox
requires \fB\-\-vo=gpu\fP (OS X 10.8 and up),
or \fB\-\-vo=libmpv\fP (iOS 9.0 and up)
.TP
.B videotoolbox\-copy
copies video back into system RAM (OS X 10.8 or iOS 9.0 and up)
.TP
.B dxva2
requires \fB\-\-vo=gpu\fP with \fB\-\-gpu\-context=d3d11\fP,
\fB\-\-gpu\-context=angle\fP or \fB\-\-gpu\-context=dxinterop\fP
(Windows only)
.TP
.B dxva2\-copy
copies video back to system RAM (Windows only)
.TP
.B d3d11va
requires \fB\-\-vo=gpu\fP with \fB\-\-gpu\-context=d3d11\fP or
\fB\-\-gpu\-context=angle\fP (Windows 8+ only)
.TP
.B d3d11va\-copy
copies video back to system RAM (Windows 8+ only)
.TP
.B mediacodec
requires \fB\-\-vo=mediacodec_embed\fP (Android only)
.TP
.B mediacodec\-copy
copies video back to system RAM (Android only)
.TP
.B mmal
requires \fB\-\-vo=gpu\fP (Raspberry Pi only \- default if available)
.TP
.B mmal\-copy
copies video back to system RAM (Raspberry Pi only)
.TP
.B nvdec
requires \fB\-\-vo=gpu\fP (Any platform CUDA is available)
.TP
.B nvdec\-copy
copies video back to system RAM (Any platform CUDA is available)
.TP
.B cuda
requires \fB\-\-vo=gpu\fP (Any platform CUDA is available)
.TP
.B cuda\-copy
copies video back to system RAM (Any platform CUDA is available)
.TP
.B crystalhd
copies video back to system RAM (Any platform supported by hardware)
.TP
.B rkmpp
requires \fB\-\-vo=gpu\fP (some RockChip devices only)
.UNINDENT
.sp
\fBauto\fP tries to automatically enable hardware decoding using the first
available method. This still depends what VO you are using. For example,
if you are not using \fB\-\-vo=gpu\fP or \fB\-\-vo=vdpau\fP, vdpau decoding will
never be enabled. Also note that if the first found method doesn\(aqt actually
work, it will always fall back to software decoding, instead of trying the
next method (might matter on some Linux systems).
.sp
\fBauto\-safe\fP is similar to \fBauto\fP, but allows only whitelisted methods
that are considered "safe". This is supposed to be a reasonable way to
enable hardware decdoding by default in a config file (even though you
shouldn\(aqt do that anyway; prefer runtime enabling with \fBCtrl+h\fP). Unlike
\fBauto\fP, this will not try to enable unknown or known\-to\-be\-bad methods. In
addition, this may disable hardware decoding in other situations when it\(aqs
known to cause problems, but currently this mechanism is quite primitive.
(As an example for something that still causes problems: certain
combinations of HEVC and Intel chips on Windows tend to cause mpv to crash,
most likely due to driver bugs.)
.sp
\fBauto\-copy\-safe\fP selects the union of methods selected with \fBauto\-safe\fP
and \fBauto\-copy\fP\&.
.sp
\fBauto\-copy\fP selects only modes that copy the video data back to system
memory after decoding. This selects modes like \fBvaapi\-copy\fP (and so on).
If none of these work, hardware decoding is disabled. This mode is usually
guaranteed to incur no additional quality loss compared to software
decoding (assuming modern codecs and an error free video stream), and will
allow CPU processing with video filters. This mode works with all video
filters and VOs.
.sp
Because these copy the decoded video back to system RAM, they\(aqre often less
efficient than the direct modes, and may not help too much over software
decoding.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Most non\-copy methods only work with the OpenGL GPU backend. Currently,
only the \fBvaapi\fP, \fBnvdec\fP and \fBcuda\fP methods work with Vulkan.
.UNINDENT
.UNINDENT
.sp
The \fBvaapi\fP mode, if used with \fB\-\-vo=gpu\fP, requires Mesa 11, and most
likely works with Intel and AMD GPUs only. It also requires the opengl EGL
backend.
.sp
\fBnvdec\fP and \fBnvdec\-copy\fP are the newest, and recommended method to do
hardware decoding on Nvidia GPUs.
.sp
\fBcuda\fP and \fBcuda\-copy\fP are an older implementation of hardware decoding
on Nvidia GPUs that uses Nvidia\(aqs bitstream parsers rather than FFmpeg\(aqs.
This can lead to feature deficiencies, such as incorrect playback of HDR
content, and \fBnvdec\fP/\fBnvdec\-copy\fP should always be preferred unless you
specifically need Nvidia\(aqs deinterlacing algorithms. To use this
deinterlacing you must pass the option:
\fBvd\-lavc\-o=deint=[weave|bob|adaptive]\fP\&.
Pass \fBweave\fP (or leave the option unset) to not attempt any
deinterlacing.
.INDENT 7.0
.INDENT 3.5
.IP "Quality reduction with hardware decoding"
.sp
In theory, hardware decoding does not reduce video quality (at least
for the codecs h264 and HEVC). However, due to restrictions in video
output APIs, as well as bugs in the actual hardware decoders, there can
be some loss, or even blatantly incorrect results.
.sp
In some cases, RGB conversion is forced, which means the RGB conversion
is performed by the hardware decoding API, instead of the shaders
used by \fB\-\-vo=gpu\fP\&. This means certain colorspaces may not display
correctly, and certain filtering (such as debanding) cannot be applied
in an ideal way. This will also usually force the use of low quality
chroma scalers instead of the one specified by \fB\-\-cscale\fP\&. In other
cases, hardware decoding can also reduce the bit depth of the decoded
image, which can introduce banding or precision loss for 10\-bit files.
.sp
\fBvdpau\fP always does RGB conversion in hardware, which does not
support newer colorspaces like BT.2020 correctly. However, \fBvdpau\fP
doesn\(aqt support 10 bit or HDR encodings, so these limitations are
unlikely to be relevant.
.sp
\fBvaapi\fP and \fBd3d11va\fP are safe. Enabling deinterlacing (or simply
their respective post\-processing filters) will possibly at least reduce
color quality by converting the output to a 8 bit format.
.sp
\fBdxva2\fP is not safe. It appears to always use BT.601 for forced RGB
conversion, but actual behavior depends on the GPU drivers. Some drivers
appear to convert to limited range RGB, which gives a faded appearance.
In addition to driver\-specific behavior, global system settings might
affect this additionally. This can give incorrect results even with
completely ordinary video sources.
.sp
\fBrpi\fP always uses the hardware overlay renderer, even with
\fB\-\-vo=gpu\fP\&.
.sp
\fBcuda\fP should usually be safe, but depending on how a file/stream
has been mixed, it has been reported to corrupt the timestamps causing
glitched, flashing frames. It can also sometimes cause massive
framedrops for unknown reasons. Caution is advised, and \fBnvdec\fP
should always be preferred.
.sp
\fBcrystalhd\fP is not safe. It always converts to 4:2:2 YUV, which
may be lossy, depending on how chroma sub\-sampling is done during
conversion. It also discards the top left pixel of each frame for
some reason.
.sp
All other methods, in particular the copy\-back methods (like
\fBdxva2\-copy\fP etc.) should hopefully be safe, although they can still
cause random decoding issues. At the very least, they shouldn\(aqt affect
the colors of the image.
.sp
In particular, \fBauto\-copy\fP will only select "safe" modes
(although potentially slower than other methods), but there\(aqs still no
guarantee the chosen hardware decoder will actually work correctly.
.sp
In general, it\(aqs very strongly advised to avoid hardware decoding
unless \fBabsolutely\fP necessary, i.e. if your CPU is insufficient to
decode the file in questions. If you run into any weird decoding issues,
frame glitches or discoloration, and you have \fB\-\-hwdec\fP turned on,
the first thing you should try is disabling it.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-gpu\-hwdec\-interop=<auto|all|no|name>\fP
This option is for troubleshooting hwdec interop issues. Since it\(aqs a
debugging option, its semantics may change at any time.
.sp
This is useful for the \fBgpu\fP and \fBlibmpv\fP VOs for selecting which
hwdec interop context to use exactly. Effectively it also can be used
to block loading of certain backends.
.sp
If set to \fBauto\fP (default), the behavior depends on the VO: for \fBgpu\fP,
it does nothing, and the interop context is loaded on demand (when the
decoder probes for \fB\-\-hwdec\fP support). For \fBlibmpv\fP, which has
has no on\-demand loading, this is equivalent to \fBall\fP\&.
.sp
The empty string is equivalent to \fBauto\fP\&.
.sp
If set to \fBall\fP, it attempts to load all interop contexts at GL context
creation time.
.sp
Other than that, a specific backend can be set, and the list of them can
be queried with \fBhelp\fP (mpv CLI only).
.sp
Runtime changes to this are ignored (the current option value is used
whenever the renderer is created).
.sp
The old aliases \fB\-\-opengl\-hwdec\-interop\fP and \fB\-\-hwdec\-preload\fP are
barely related to this anymore, but will be somewhat compatible in some
cases.
.TP
.B \fB\-\-hwdec\-extra\-frames=<N>\fP
Number of GPU frames hardware decoding should preallocate (default: see
\fB\-\-list\-options\fP output). If this is too low, frame allocation may fail
during decoding, and video frames might get dropped and/or corrupted.
Setting it too high simply wastes GPU memory and has no advantages.
.sp
This value is used only for hardware decoding APIs which require
preallocating surfaces (known examples include \fBd3d11va\fP and \fBvaapi\fP).
For other APIs, frames are allocated as needed. The details depend on the
libavcodec implementations of the hardware decoders.
.sp
The required number of surfaces depends on dynamic runtime situations. The
default is a fixed value that is thought to be sufficient for most uses. But
in certain situations, it may not be enough.
.TP
.B \fB\-\-hwdec\-image\-format=<name>\fP
Set the internal pixel format used by hardware decoding via \fB\-\-hwdec\fP
(default \fBno\fP). The special value \fBno\fP selects an implementation
specific standard format. Most decoder implementations support only one
format, and will fail to initialize if the format is not supported.
.sp
Some implementations might support multiple formats. In particular,
videotoolbox is known to require \fBuyvy422\fP for good performance on some
older hardware. d3d11va can always use \fByuv420p\fP, which uses an opaque
format, with likely no advantages.
.TP
.B \fB\-\-cuda\-decode\-device=<auto|0..>\fP
Choose the GPU device used for decoding when using the \fBcuda\fP or
\fBnvdec\fP hwdecs with the OpenGL GPU backend, and with the \fBcuda\-copy\fP
or \fBnvdec\-copy\fP hwdecs in all cases.
.sp
For the OpenGL GPU backend, the default device used for decoding is the one
being used to provide \fBgpu\fP output (and in the vast majority of cases,
only one GPU will be present).
.sp
For the \fBcopy\fP hwdecs, the default device will be the first device
enumerated by the CUDA libraries \- however that is done.
.sp
For the Vulkan GPU backend, decoding must always happen on the display
device, and this option has no effect.
.TP
.B \fB\-\-vaapi\-device=<device file>\fP
Choose the DRM device for \fBvaapi\-copy\fP\&. This should be the path to a
DRM device file. (Default: \fB/dev/dri/renderD128\fP)
.TP
.B \fB\-\-panscan=<0.0\-1.0>\fP
Enables pan\-and\-scan functionality (cropping the sides of e.g. a 16:9
video to make it fit a 4:3 display without black bands). The range
controls how much of the image is cropped. May not work with all video
output drivers.
.sp
This option has no effect if \fB\-\-video\-unscaled\fP option is used.
.TP
.B \fB\-\-video\-aspect\-override=<ratio|no>\fP
Override video aspect ratio, in case aspect information is incorrect or
missing in the file being played.
.sp
These values have special meaning:
.INDENT 7.0
.TP
.B 0
disable aspect ratio handling, pretend the video has square pixels
.TP
.B no
same as \fB0\fP
.TP
.B \-1
use the video stream or container aspect (default)
.UNINDENT
.sp
But note that handling of these special values might change in the future.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-video\-aspect\-override=4:3\fP  or \fB\-\-video\-aspect\-override=1.3333\fP
.IP \(bu 2
\fB\-\-video\-aspect\-override=16:9\fP or \fB\-\-video\-aspect\-override=1.7777\fP
.IP \(bu 2
\fB\-\-no\-video\-aspect\-override\fP or \fB\-\-video\-aspect\-override=no\fP
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-video\-aspect\-method=<bitstream|container>\fP
This sets the default video aspect determination method (if the aspect is
_not_ overridden by the user with \fB\-\-video\-aspect\-override\fP or others).
.INDENT 7.0
.TP
.B container
Strictly prefer the container aspect ratio. This is apparently
the default behavior with VLC, at least with Matroska. Note that
if the container has no aspect ratio set, the behavior is the
same as with bitstream.
.TP
.B bitstream
Strictly prefer the bitstream aspect ratio, unless the bitstream
aspect ratio is not set. This is apparently the default behavior
with XBMC/kodi, at least with Matroska.
.UNINDENT
.sp
The current default for mpv is \fBcontainer\fP\&.
.sp
Normally you should not set this. Try the various choices if you encounter
video that has the wrong aspect ratio in mpv, but seems to be correct in
other players.
.TP
.B \fB\-\-video\-unscaled=<no|yes|downscale\-big>\fP
Disable scaling of the video. If the window is larger than the video,
black bars are added. Otherwise, the video is cropped, unless the option
is set to \fBdownscale\-big\fP, in which case the video is fit to window. The
video still can be influenced by the other \fB\-\-video\-...\fP options. This
option disables the effect of \fB\-\-panscan\fP\&.
.sp
Note that the scaler algorithm may still be used, even if the video isn\(aqt
scaled. For example, this can influence chroma conversion. The video will
also still be scaled in one dimension if the source uses non\-square pixels
(e.g. anamorphic widescreen DVDs).
.sp
This option is disabled if the \fB\-\-no\-keepaspect\fP option is used.
.TP
.B \fB\-\-video\-pan\-x=<value>\fP, \fB\-\-video\-pan\-y=<value>\fP
Moves the displayed video rectangle by the given value in the X or Y
direction. The unit is in fractions of the size of the scaled video (the
full size, even if parts of the video are not visible due to panscan or
other options).
.sp
For example, displaying a 1280x720 video fullscreen on a 1680x1050 screen
with \fB\-\-video\-pan\-x=\-0.1\fP would move the video 168 pixels to the left
(making 128 pixels of the source video invisible).
.sp
This option is disabled if the \fB\-\-no\-keepaspect\fP option is used.
.TP
.B \fB\-\-video\-rotate=<0\-359|no>\fP
Rotate the video clockwise, in degrees. Currently supports 90° steps only.
If \fBno\fP is given, the video is never rotated, even if the file has
rotation metadata. (The rotation value is added to the rotation metadata,
which means the value \fB0\fP would rotate the video according to the
rotation metadata.)
.TP
.B \fB\-\-video\-zoom=<value>\fP
Adjust the video display scale factor by the given value. The parameter is
given log 2. For example, \fB\-\-video\-zoom=0\fP is unscaled,
\fB\-\-video\-zoom=1\fP is twice the size, \fB\-\-video\-zoom=\-2\fP is one fourth of
the size, and so on.
.sp
This option is disabled if the \fB\-\-no\-keepaspect\fP option is used.
.TP
.B \fB\-\-video\-align\-x=<\-1\-1>\fP, \fB\-\-video\-align\-y=<\-1\-1>\fP
Moves the video rectangle within the black borders, which are usually added
to pad the video to screen if video and screen aspect ratios are different.
\fB\-\-video\-align\-y=\-1\fP would move the video to the top of the screen
(leaving a border only on the bottom), a value of \fB0\fP centers it
(default), and a value of \fB1\fP would put the video at the bottom of the
screen.
.sp
If video and screen aspect match perfectly, these options do nothing.
.sp
This option is disabled if the \fB\-\-no\-keepaspect\fP option is used.
.TP
.B \fB\-\-video\-margin\-ratio\-left=<val>\fP, \fB\-\-video\-margin\-ratio\-right=<val>\fP, \fB\-\-video\-margin\-ratio\-top=<val>\fP, \fB\-\-video\-margin\-ratio\-bottom=<val>\fP
Set extra video margins on each border (default: 0). Each value is a ratio
of the window size, using a range 0.0\-1.0. For example, setting the option
\fB\-\-video\-margin\-ratio\-right=0.2\fP at a window size of 1000 pixels will add
a 200 pixels border on the right side of the window.
.sp
The video is "boxed" by these margins. The window size is not changed. In
particular it does not enlarge the window, and the margins will cause the
video to be downscaled by default. This may or may not change in the future.
.sp
The margins are applied after 90° video rotation, but before any other video
transformations.
.sp
This option is disabled if the \fB\-\-no\-keepaspect\fP option is used.
.sp
Subtitles still may use the margins, depending on \fB\-\-sub\-use\-margins\fP and
similar options.
.sp
These options were created for the OSC. Some odd decisions, such as making
the margin values a ratio (instead of pixels), were made for the sake of
the OSC. It\(aqs possible that these options may be replaced by ones that are
more generally useful. The behavior of these options may change to fit
OSC requirements better, too.
.TP
.B \fB\-\-correct\-pts\fP, \fB\-\-no\-correct\-pts\fP
\fB\-\-no\-correct\-pts\fP switches mpv to a mode where video timing is
determined using a fixed framerate value (either using the \fB\-\-fps\fP
option, or using file information). Sometimes, files with very broken
timestamps can be played somewhat well in this mode. Note that video
filters, subtitle rendering, seeking (including hr\-seeks and backstepping),
and audio synchronization can be completely broken in this mode.
.TP
.B \fB\-\-fps=<float>\fP
Override video framerate. Useful if the original value is wrong or missing.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Works in \fB\-\-no\-correct\-pts\fP mode only.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-deinterlace=<yes|no>\fP
Enable or disable interlacing (default: no).
Interlaced video shows ugly comb\-like artifacts, which are visible on
fast movement. Enabling this typically inserts the yadif video filter in
order to deinterlace the video, or lets the video output apply deinterlacing
if supported.
.sp
This behaves exactly like the \fBdeinterlace\fP input property (usually
mapped to \fBd\fP).
.sp
Keep in mind that this \fBwill\fP conflict with manually inserted
deinterlacing filters, unless you take care. (Since mpv 0.27.0, even the
hardware deinterlace filters will conflict. Also since that version,
\fB\-\-deinterlace=auto\fP was removed, which used to mean that the default
interlacing option of possibly inserted video filters was used.)
.sp
Note that this will make video look worse if it\(aqs not actually interlaced.
.TP
.B \fB\-\-frames=<number>\fP
Play/convert only first \fB<number>\fP video frames, then quit.
.sp
\fB\-\-frames=0\fP loads the file, but immediately quits before initializing
playback. (Might be useful for scripts which just want to determine some
file properties.)
.sp
For audio\-only playback, any value greater than 0 will quit playback
immediately after initialization. The value 0 works as with video.
.TP
.B \fB\-\-video\-output\-levels=<outputlevels>\fP
RGB color levels used with YUV to RGB conversion. Normally, output devices
such as PC monitors use full range color levels. However, some TVs and
video monitors expect studio RGB levels. Providing full range output to a
device expecting studio level input results in crushed blacks and whites,
the reverse in dim gray blacks and dim whites.
.sp
Not all VOs support this option. Some will silently ignore it.
.sp
Available color ranges are:
.INDENT 7.0
.TP
.B auto
automatic selection (equals to full range) (default)
.TP
.B limited
limited range (16\-235 per component), studio levels
.TP
.B full
full range (0\-255 per component), PC levels
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
It is advisable to use your graphics driver\(aqs color range option
instead, if available.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-hwdec\-codecs=<codec1,codec2,...|all>\fP
Allow hardware decoding for a given list of codecs only. The special value
\fBall\fP always allows all codecs.
.sp
You can get the list of allowed codecs with \fBmpv \-\-vd=help\fP\&. Remove the
prefix, e.g. instead of \fBlavc:h264\fP use \fBh264\fP\&.
.sp
By default, this is set to \fBh264,vc1,hevc,vp9\fP\&. Note that
the hardware acceleration special codecs like \fBh264_vdpau\fP are not
relevant anymore, and in fact have been removed from Libav in this form.
.sp
This is usually only needed with broken GPUs, where a codec is reported
as supported, but decoding causes more problems than it solves.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B \fBmpv \-\-hwdec=vdpau \-\-vo=vdpau \-\-hwdec\-codecs=h264,mpeg2video\fP
Enable vdpau decoding for h264 and mpeg2 only.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-vd\-lavc\-check\-hw\-profile=<yes|no>\fP
Check hardware decoder profile (default: yes). If \fBno\fP is set, the
highest profile of the hardware decoder is unconditionally selected, and
decoding is forced even if the profile of the video is higher than that.
The result is most likely broken decoding, but may also help if the
detected or reported profiles are somehow incorrect.
.TP
.B \fB\-\-vd\-lavc\-software\-fallback=<yes|no|N>\fP
Fallback to software decoding if the hardware\-accelerated decoder fails
(default: 3). If this is a number, then fallback will be triggered if
N frames fail to decode in a row. 1 is equivalent to \fByes\fP\&.
.sp
Setting this to a higher number might break the playback start fallback: if
a fallback happens, parts of the file will be skipped, approximately by to
the number of packets that could not be decoded. Values below an unspecified
count will not have this problem, because mpv retains the packets.
.TP
.B \fB\-\-vd\-lavc\-dr=<yes|no>\fP
Enable direct rendering (default: yes). If this is set to \fByes\fP, the
video will be decoded directly to GPU video memory (or staging buffers).
This can speed up video upload, and may help with large resolutions or
slow hardware. This works only with the following VOs:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.IP \(bu 2
\fBgpu\fP: requires at least OpenGL 4.4 or Vulkan.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
(In particular, this can\(aqt be made work with \fBopengl\-cb\fP, but the libmpv
render API has optional support.)
.sp
Using video filters of any kind that write to the image data (or output
newly allocated frames) will silently disable the DR code path.
.TP
.B \fB\-\-vd\-lavc\-bitexact\fP
Only use bit\-exact algorithms in all decoding steps (for codec testing).
.TP
.B \fB\-\-vd\-lavc\-fast\fP (MPEG\-2, MPEG\-4, and H.264 only)
Enable optimizations which do not comply with the format specification and
potentially cause problems, like simpler dequantization, simpler motion
compensation, assuming use of the default quantization matrix, assuming YUV
4:2:0 and skipping a few checks to detect damaged bitstreams.
.TP
.B \fB\-\-vd\-lavc\-o=<key>=<value>[,<key>=<value>[,...]]\fP
Pass AVOptions to libavcodec decoder. Note, a patch to make the \fBo=\fP
unneeded and pass all unknown options through the AVOption system is
welcome. A full list of AVOptions can be found in the FFmpeg manual.
.sp
Some options which used to be direct options can be set with this
mechanism, like \fBbug\fP, \fBgray\fP, \fBidct\fP, \fBec\fP, \fBvismv\fP,
\fBskip_top\fP (was \fBst\fP), \fBskip_bottom\fP (was \fBsb\fP), \fBdebug\fP\&.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fB\-\-vd\-lavc\-o=debug=pict\fP
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-vd\-lavc\-show\-all=<yes|no>\fP
Show even broken/corrupt frames (default: no). If this option is set to
no, libavcodec won\(aqt output frames that were either decoded before an
initial keyframe was decoded, or frames that are recognized as corrupted.
.TP
.B \fB\-\-vd\-lavc\-skiploopfilter=<skipvalue> (H.264 only)\fP
Skips the loop filter (AKA deblocking) during H.264 decoding. Since
the filtered frame is supposed to be used as reference for decoding
dependent frames, this has a worse effect on quality than not doing
deblocking on e.g. MPEG\-2 video. But at least for high bitrate HDTV,
this provides a big speedup with little visible quality loss.
.sp
\fB<skipvalue>\fP can be one of the following:
.INDENT 7.0
.TP
.B none
Never skip.
.TP
.B default
Skip useless processing steps (e.g. 0 size packets in AVI).
.TP
.B nonref
Skip frames that are not referenced (i.e. not used for
decoding other frames, the error cannot "build up").
.TP
.B bidir
Skip B\-Frames.
.TP
.B nonkey
Skip all frames except keyframes.
.TP
.B all
Skip all frames.
.UNINDENT
.TP
.B \fB\-\-vd\-lavc\-skipidct=<skipvalue> (MPEG\-1/2 only)\fP
Skips the IDCT step. This degrades quality a lot in almost all cases
(see skiploopfilter for available skip values).
.TP
.B \fB\-\-vd\-lavc\-skipframe=<skipvalue>\fP
Skips decoding of frames completely. Big speedup, but jerky motion and
sometimes bad artifacts (see skiploopfilter for available skip values).
.TP
.B \fB\-\-vd\-lavc\-framedrop=<skipvalue>\fP
Set framedropping mode used with \fB\-\-framedrop\fP (see skiploopfilter for
available skip values).
.TP
.B \fB\-\-vd\-lavc\-threads=<N>\fP
Number of threads to use for decoding. Whether threading is actually
supported depends on codec (default: 0). 0 means autodetect number of cores
on the machine and use that, up to the maximum of 16. You can set more than
16 threads manually.
.TP
.B \fB\-\-vd\-lavc\-assume\-old\-x264=<yes|no>\fP
Assume the video was encoded by an old, buggy x264 version (default: no).
Normally, this is autodetected by libavcodec. But if the bitstream contains
no x264 version info (or it was somehow skipped), and the stream was in fact
encoded by an old x264 version (build 150 or earlier), and if the stream
uses \fB4:4:4\fP chroma, then libavcodec will by default show corrupted video.
This option sets the libavcodec \fBx264_build\fP option to \fB150\fP, which
means that if the stream contains no version info, or was not encoded by
x264 at all, it assumes it was encoded by the old version. Enabling this
option is pretty safe if you want your broken files to work, but in theory
this can break on streams not encoded by x264, or if a stream encoded by a
newer x264 version contains no version info.
.TP
.B \fB\-\-swapchain\-depth=<N>\fP
Allow up to N in\-flight frames. This essentially controls the frame
latency. Increasing the swapchain depth can improve pipelining and prevent
missed vsyncs, but increases visible latency. This option only mandates an
upper limit, the implementation can use a lower latency than requested
internally. A setting of 1 means that the VO will wait for every frame to
become visible before starting to render the next frame. (Default: 3)
.UNINDENT
.SS Audio
.INDENT 0.0
.TP
.B \fB\-\-audio\-pitch\-correction=<yes|no>\fP
If this is enabled (default), playing with a speed different from normal
automatically inserts the \fBscaletempo\fP audio filter. For details, see
audio filter section.
.TP
.B \fB\-\-audio\-device=<name>\fP
Use the given audio device. This consists of the audio output name, e.g.
\fBalsa\fP, followed by \fB/\fP, followed by the audio output specific device
name. The default value for this option is \fBauto\fP, which tries every audio
output in preference order with the default device.
.sp
You can list audio devices with \fB\-\-audio\-device=help\fP\&. This outputs the
device name in quotes, followed by a description. The device name is what
you have to pass to the \fB\-\-audio\-device\fP option. The list of audio devices
can be retrieved by API by using the \fBaudio\-device\-list\fP property.
.sp
While the option normally takes one of the strings as indicated by the
methods above, you can also force the device for most AOs by building it
manually. For example \fBname/foobar\fP forces the AO \fBname\fP to use the
device \fBfoobar\fP\&. However, the \fB\-\-ao\fP option will strictly force a
specific AO. To avoid confusion, don\(aqt use \fB\-\-ao\fP and \fB\-\-audio\-device\fP
together.
.INDENT 7.0
.INDENT 3.5
.IP "Example for ALSA"
.sp
MPlayer and mplayer2 required you to replace any \(aq,\(aq with \(aq.\(aq and
any \(aq:\(aq with \(aq=\(aq in the ALSA device name. For example, to use the
device named \fBdmix:default\fP, you had to do:
.INDENT 0.0
.INDENT 3.5
\fB\-ao alsa:device=dmix=default\fP
.UNINDENT
.UNINDENT
.sp
In mpv you could instead use:
.INDENT 0.0
.INDENT 3.5
\fB\-\-audio\-device=alsa/dmix:default\fP
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-audio\-exclusive=<yes|no>\fP
Enable exclusive output mode. In this mode, the system is usually locked
out, and only mpv will be able to output audio.
.sp
This only works for some audio outputs, such as \fBwasapi\fP and
\fBcoreaudio\fP\&. Other audio outputs silently ignore this options. They either
have no concept of exclusive mode, or the mpv side of the implementation is
missing.
.TP
.B \fB\-\-audio\-fallback\-to\-null=<yes|no>\fP
If no audio device can be opened, behave as if \fB\-\-ao=null\fP was given. This
is useful in combination with \fB\-\-audio\-device\fP: instead of causing an
error if the selected device does not exist, the client API user (or a
Lua script) could let playback continue normally, and check the
\fBcurrent\-ao\fP and \fBaudio\-device\-list\fP properties to make high\-level
decisions about how to continue.
.TP
.B \fB\-\-ao=<driver>\fP
Specify the audio output drivers to be used. See \fI\%AUDIO OUTPUT DRIVERS\fP for
details and descriptions of available drivers.
.TP
.B \fB\-\-af=<filter1[=parameter1:parameter2:...],filter2,...>\fP
Specify a list of audio filters to apply to the audio stream. See
\fI\%AUDIO FILTERS\fP for details and descriptions of the available filters.
The option variants \fB\-\-af\-add\fP, \fB\-\-af\-pre\fP, \fB\-\-af\-del\fP and
\fB\-\-af\-clr\fP exist to modify a previously specified list, but you
should not need these for typical use.
.TP
.B \fB\-\-audio\-spdif=<codecs>\fP
List of codecs for which compressed audio passthrough should be used. This
works for both classic S/PDIF and HDMI.
.sp
Possible codecs are \fBac3\fP, \fBdts\fP, \fBdts\-hd\fP, \fBeac3\fP, \fBtruehd\fP\&.
Multiple codecs can be specified by separating them with \fB,\fP\&. \fBdts\fP
refers to low bitrate DTS core, while \fBdts\-hd\fP refers to DTS MA (receiver
and OS support varies). If both \fBdts\fP and \fBdts\-hd\fP are specified, it
behaves equivalent to specifying \fBdts\-hd\fP only.
.sp
In earlier mpv versions you could use \fB\-\-ad\fP to force the spdif wrapper.
This does not work anymore.
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
There is not much reason to use this. HDMI supports uncompressed
multichannel PCM, and mpv supports lossless DTS\-HD decoding via
FFmpeg\(aqs new DCA decoder (based on libdcadec).
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-ad=<decoder1,decoder2,...[\-]>\fP
Specify a priority list of audio decoders to be used, according to their
decoder name. When determining which decoder to use, the first decoder that
matches the audio format is selected. If that is unavailable, the next
decoder is used. Finally, it tries all other decoders that are not
explicitly selected or rejected by the option.
.sp
\fB\-\fP at the end of the list suppresses fallback on other available
decoders not on the \fB\-\-ad\fP list. \fB+\fP in front of an entry forces the
decoder. Both of these should not normally be used, because they break
normal decoder auto\-selection! Both of these methods are deprecated.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB\-\-ad=mp3float\fP
Prefer the FFmpeg/Libav \fBmp3float\fP decoder over all other MP3
decoders.
.TP
.B \fB\-\-ad=help\fP
List all available decoders.
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
Enabling compressed audio passthrough (AC3 and DTS via SPDIF/HDMI) with
this option is not possible. Use \fB\-\-audio\-spdif\fP instead.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-volume=<value>\fP
Set the startup volume. 0 means silence, 100 means no volume reduction or
amplification. Negative values can be passed for compatibility, but are
treated as 0.
.sp
Since mpv 0.18.1, this always controls the internal mixer (aka "softvol").
.TP
.B \fB\-\-replaygain=<no|track|album>\fP
Adjust volume gain according to replaygain values stored in the file
metadata. With \fB\-\-replaygain=no\fP (the default), perform no adjustment.
With \fB\-\-replaygain=track\fP, apply track gain. With \fB\-\-replaygain=album\fP,
apply album gain if present and fall back to track gain otherwise.
.TP
.B \fB\-\-replaygain\-preamp=<db>\fP
Pre\-amplification gain in dB to apply to the selected replaygain gain
(default: 0).
.TP
.B \fB\-\-replaygain\-clip=<yes|no>\fP
Prevent clipping caused by replaygain by automatically lowering the
gain (default). Use \fB\-\-replaygain\-clip=no\fP to disable this.
.TP
.B \fB\-\-replaygain\-fallback=<db>\fP
Gain in dB to apply if the file has no replay gain tags. This option
is always applied if the replaygain logic is somehow inactive. If this
is applied, no other replaygain options are applied.
.TP
.B \fB\-\-audio\-delay=<sec>\fP
Audio delay in seconds (positive or negative float value). Positive values
delay the audio, and negative values delay the video.
.TP
.B \fB\-\-mute=<yes|no|auto>\fP
Set startup audio mute status (default: no).
.sp
\fBauto\fP is a deprecated possible value that is equivalent to \fBno\fP\&.
.sp
See also: \fB\-\-volume\fP\&.
.TP
.B \fB\-\-softvol=<no|yes|auto>\fP
Deprecated/unfunctional. Before mpv 0.18.1, this used to control whether
to use the volume controls of the audio output driver or the internal mpv
volume filter.
.sp
The current behavior is that softvol is always enabled, i.e. as if this
option is set to \fByes\fP\&. The other behaviors are not available anymore,
although \fBauto\fP almost matches current behavior in most cases.
.sp
The \fBno\fP behavior is still partially available through the \fBao\-volume\fP
and \fBao\-mute\fP properties. But there are no options to reset these.
.TP
.B \fB\-\-audio\-demuxer=<[+]name>\fP
Use this audio demuxer type when using \fB\-\-audio\-file\fP\&. Use a \(aq+\(aq before
the name to force it; this will skip some checks. Give the demuxer name as
printed by \fB\-\-audio\-demuxer=help\fP\&.
.TP
.B \fB\-\-ad\-lavc\-ac3drc=<level>\fP
Select the Dynamic Range Compression level for AC\-3 audio streams.
\fB<level>\fP is a float value ranging from 0 to 1, where 0 means no
compression (which is the default) and 1 means full compression (make loud
passages more silent and vice versa). Values up to 6 are also accepted, but
are purely experimental. This option only shows an effect if the AC\-3 stream
contains the required range compression information.
.sp
The standard mandates that DRC is enabled by default, but mpv (and some
other players) ignore this for the sake of better audio quality.
.TP
.B \fB\-\-ad\-lavc\-downmix=<yes|no>\fP
Whether to request audio channel downmixing from the decoder (default: yes).
Some decoders, like AC\-3, AAC and DTS, can remix audio on decoding. The
requested number of output channels is set with the \fB\-\-audio\-channels\fP option.
Useful for playing surround audio on a stereo system.
.TP
.B \fB\-\-ad\-lavc\-threads=<0\-16>\fP
Number of threads to use for decoding. Whether threading is actually
supported depends on codec. As of this writing, it\(aqs supported for some
lossless codecs only. 0 means autodetect number of cores on the
machine and use that, up to the maximum of 16 (default: 1).
.TP
.B \fB\-\-ad\-lavc\-o=<key>=<value>[,<key>=<value>[,...]]\fP
Pass AVOptions to libavcodec decoder. Note, a patch to make the o=
unneeded and pass all unknown options through the AVOption system is
welcome. A full list of AVOptions can be found in the FFmpeg manual.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-ad\-spdif\-dtshd=<yes|no>\fP, \fB\-\-dtshd\fP, \fB\-\-no\-dtshd\fP
If DTS is passed through, use DTS\-HD.
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
This and enabling passthrough via \fB\-\-ad\fP are deprecated in favor of
using \fB\-\-audio\-spdif=dts\-hd\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-audio\-channels=<auto\-safe|auto|layouts>\fP
Control which audio channels are output (e.g. surround vs. stereo). There
are the following possibilities:
.INDENT 7.0
.IP \(bu 2
.INDENT 2.0
.TP
.B \fB\-\-audio\-channels=auto\-safe\fP
Use the system\(aqs preferred channel layout. If there is none (such
as when accessing a hardware device instead of the system mixer),
force stereo. Some audio outputs might simply accept any layout and
do downmixing on their own.
.sp
This is the default.
.UNINDENT
.IP \(bu 2
.INDENT 2.0
.TP
.B \fB\-\-audio\-channels=auto\fP
Send the audio device whatever it accepts, preferring the audio\(aqs
original channel layout. Can cause issues with HDMI (see the warning
below).
.UNINDENT
.IP \(bu 2
.INDENT 2.0
.TP
.B \fB\-\-audio\-channels=layout1,layout2,...\fP
List of \fB,\fP\-separated channel layouts which should be allowed.
Technically, this only adjusts the filter chain output to the best
matching layout in the list, and passes the result to the audio API.
It\(aqs possible that the audio API will select a different channel
layout.
.sp
Using this mode is recommended for direct hardware output, especially
over HDMI (see HDMI warning below).
.UNINDENT
.IP \(bu 2
.INDENT 2.0
.TP
.B \fB\-\-audio\-channels=stereo\fP
Force  a plain stereo downmix. This is a special\-case of the previous
item. (See paragraphs below for implications.)
.UNINDENT
.UNINDENT
.sp
If a list of layouts is given, each item can be either an explicit channel
layout name (like \fB5.1\fP), or a channel number. Channel numbers refer to
default layouts, e.g. 2 channels refer to stereo, 6 refers to 5.1.
.sp
See \fB\-\-audio\-channels=help\fP output for defined default layouts. This also
lists speaker names, which can be used to express arbitrary channel
layouts (e.g. \fBfl\-fr\-lfe\fP is 2.1).
.sp
If the list of channel layouts has only 1 item, the decoder is asked to
produce according output. This sometimes triggers decoder\-downmix, which
might be different from the normal mpv downmix. (Only some decoders support
remixing audio, like AC\-3, AAC or DTS. You can use \fB\-\-ad\-lavc\-downmix=no\fP
to make the decoder always output its native layout.) One consequence is
that \fB\-\-audio\-channels=stereo\fP triggers decoder downmix, while \fBauto\fP
or \fBauto\-safe\fP never will, even if they end up selecting stereo. This
happens because the decision whether to use decoder downmix happens long
before the audio device is opened.
.sp
If the channel layout of the media file (i.e. the decoder) and the AO\(aqs
channel layout don\(aqt match, mpv will attempt to insert a conversion filter.
You may need to change the channel layout of the system mixer to achieve
your desired output as mpv does not have control over it. Another
work\-around for this on some AOs is to use \fB\-\-audio\-exclusive=yes\fP to
circumvent the system mixer entirely.
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
Using \fBauto\fP can cause issues when using audio over HDMI. The OS will
typically report all channel layouts that _can_ go over HDMI, even if
the receiver does not support them. If a receiver gets an unsupported
channel layout, random things can happen, such as dropping the
additional channels, or adding noise.
.sp
You are recommended to set an explicit whitelist of the layouts you
want. For example, most A/V receivers connected via HDMI and that can
do 7.1 would  be served by: \fB\-\-audio\-channels=7.1,5.1,stereo\fP
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-audio\-display=<no|attachment>\fP
Setting this option to \fBattachment\fP (default) will display image
attachments (e.g. album cover art) when playing audio files. It will
display the first image found, and additional images are available as
video tracks.
.sp
Setting this option to \fBno\fP disables display of video entirely when
playing audio files.
.sp
This option has no influence on files with normal video tracks.
.TP
.B \fB\-\-audio\-files=<files>\fP
Play audio from an external file while viewing a video.
.sp
This is a path list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-audio\-file=<file>\fP
CLI/config file only alias for \fB\-\-audio\-files\-append\fP\&. Each use of this
option will add a new audio track. The details are similar to how
\fB\-\-sub\-file\fP works.
.TP
.B \fB\-\-audio\-format=<format>\fP
Select the sample format used for output from the audio filter layer to
the sound card. The values that \fB<format>\fP can adopt are listed below in
the description of the \fBformat\fP audio filter.
.TP
.B \fB\-\-audio\-samplerate=<Hz>\fP
Select the output sample rate to be used (of course sound cards have
limits on this). If the sample frequency selected is different from that
of the current media, the lavrresample audio filter will be inserted into
the audio filter layer to compensate for the difference.
.TP
.B \fB\-\-gapless\-audio=<no|yes|weak>\fP
Try to play consecutive audio files with no silence or disruption at the
point of file change. Default: \fBweak\fP\&.
.INDENT 7.0
.TP
.B no
Disable gapless audio.
.TP
.B yes
The audio device is opened using parameters chosen for the first
file played and is then kept open for gapless playback. This
means that if the first file for example has a low sample rate, then
the following files may get resampled to the same low sample rate,
resulting in reduced sound quality. If you play files with different
parameters, consider using options such as \fB\-\-audio\-samplerate\fP
and \fB\-\-audio\-format\fP to explicitly select what the shared output
format will be.
.TP
.B weak
Normally, the audio device is kept open (using the format it was
first initialized with). If the audio format the decoder output
changes, the audio device is closed and reopened. This means that
you will normally get gapless audio with files that were encoded
using the same settings, but might not be gapless in other cases.
The exact conditions under which the audio device is kept open is
an implementation detail, and can change from version to version.
Currently, the device is kept even if the sample format changes,
but the sample formats are convertible.
If video is still going on when there is still audio, trying to use
gapless is also explicitly given up.
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This feature is implemented in a simple manner and relies on audio
output device buffering to continue playback while moving from one file
to another. If playback of the new file starts slowly, for example
because it is played from a remote network location or because you have
specified cache settings that require time for the initial cache fill,
then the buffered audio may run out before playback of the new file
can start.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-initial\-audio\-sync\fP, \fB\-\-no\-initial\-audio\-sync\fP
When starting a video file or after events such as seeking, mpv will by
default modify the audio stream to make it start from the same timestamp
as video, by either inserting silence at the start or cutting away the
first samples. Disabling this option makes the player behave like older
mpv versions did: video and audio are both started immediately even if
their start timestamps differ, and then video timing is gradually adjusted
if necessary to reach correct synchronization later.
.TP
.B \fB\-\-volume\-max=<100.0\-1000.0>\fP, \fB\-\-softvol\-max=<...>\fP
Set the maximum amplification level in percent (default: 130). A value of
130 will allow you to adjust the volume up to about double the normal level.
.sp
\fB\-\-softvol\-max\fP is a deprecated alias and should not be used.
.TP
.B \fB\-\-audio\-file\-auto=<no|exact|fuzzy|all>\fP, \fB\-\-no\-audio\-file\-auto\fP
Load additional audio files matching the video filename. The parameter
specifies how external audio files are matched.
.INDENT 7.0
.TP
.B no
Don\(aqt automatically load external audio files (default).
.TP
.B exact
Load the media filename with audio file extension.
.TP
.B fuzzy
Load all audio files containing media filename.
.TP
.B all
Load all audio files in the current and \fB\-\-audio\-file\-paths\fP
directories.
.UNINDENT
.TP
.B \fB\-\-audio\-file\-paths=<path1:path2:...>\fP
Equivalent to \fB\-\-sub\-file\-paths\fP option, but for auto\-loaded audio files.
.sp
This is a path list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-audio\-client\-name=<name>\fP
The application name the player reports to the audio API. Can be useful
if you want to force a different audio profile (e.g. with PulseAudio),
or to set your own application name when using libmpv.
.TP
.B \fB\-\-audio\-buffer=<seconds>\fP
Set the audio output minimum buffer. The audio device might actually create
a larger buffer if it pleases. If the device creates a smaller buffer,
additional audio is buffered in an additional software buffer.
.sp
Making this larger will make soft\-volume and other filters react slower,
introduce additional issues on playback speed change, and block the
player on audio format changes. A smaller buffer might lead to audio
dropouts.
.sp
This option should be used for testing only. If a non\-default value helps
significantly, the mpv developers should be contacted.
.sp
Default: 0.2 (200 ms).
.TP
.B \fB\-\-audio\-stream\-silence=<yes|no>\fP
Cash\-grab consumer audio hardware (such as A/V receivers) often ignore
initial audio sent over HDMI. This can happen every time audio over HDMI
is stopped and resumed. In order to compensate for this, you can enable
this option to not to stop and restart audio on seeks, and fill the gaps
with silence. Likewise, when pausing playback, audio is not stopped, and
silence is played while paused. Note that if no audio track is selected,
the audio device will still be closed immediately.
.sp
Not all AOs support this.
.TP
.B \fB\-\-audio\-wait\-open=<secs>\fP
This makes sense for use with \fB\-\-audio\-stream\-silence=yes\fP\&. If this option
is given, the player will wait for the given amount of seconds after opening
the audio device before sending actual audio data to it. Useful if your
expensive hardware discards the first 1 or 2 seconds of audio data sent to
it. If \fB\-\-audio\-stream\-silence=yes\fP is not set, this option will likely
just waste time.
.UNINDENT
.SS Subtitles
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
Changing styling and position does not work with all subtitles. Image\-based
subtitles (DVD, Bluray/PGS, DVB) cannot changed for fundamental reasons.
Subtitles in ASS format are normally not changed intentionally, but
overriding them can be controlled with \fB\-\-sub\-ass\-override\fP\&.
.sp
Previously some options working on text subtitles were called
\fB\-\-sub\-text\-*\fP, they are now named \fB\-\-sub\-*\fP, and those specifically
for ASS have been renamed from \fB\-\-ass\-*\fP to \fB\-\-sub\-ass\-*\fP\&.
They are now all in this section.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \fB\-\-sub\-demuxer=<[+]name>\fP
Force subtitle demuxer type for \fB\-\-sub\-file\fP\&. Give the demuxer name as
printed by \fB\-\-sub\-demuxer=help\fP\&.
.TP
.B \fB\-\-sub\-delay=<sec>\fP
Delays subtitles by \fB<sec>\fP seconds. Can be negative.
.TP
.B \fB\-\-sub\-files=<file\-list>\fP, \fB\-\-sub\-file=<filename>\fP
Add a subtitle file to the list of external subtitles.
.sp
If you use \fB\-\-sub\-file\fP only once, this subtitle file is displayed by
default.
.sp
If \fB\-\-sub\-file\fP is used multiple times, the subtitle to use can be
switched at runtime by cycling subtitle tracks. It\(aqs possible to show
two subtitles at once: use \fB\-\-sid\fP to select the first subtitle index,
and \fB\-\-secondary\-sid\fP to select the second index. (The index is printed
on the terminal output after the \fB\-\-sid=\fP in the list of streams.)
.sp
\fB\-\-sub\-files\fP is a path list option (see \fI\%List Options\fP  for details), and
can take multiple file names separated by \fB:\fP (Unix) or \fB;\fP (Windows),
while  \fB\-\-sub\-file\fP takes a single filename, but can be used multiple
times to add multiple files. Technically, \fB\-\-sub\-file\fP is a CLI/config
file only alias for  \fB\-\-sub\-files\-append\fP\&.
.TP
.B \fB\-\-secondary\-sid=<ID|auto|no>\fP
Select a secondary subtitle stream. This is similar to \fB\-\-sid\fP\&. If a
secondary subtitle is selected, it will be rendered as toptitle (i.e. on
the top of the screen) alongside the normal subtitle, and provides a way
to render two subtitles at once.
.sp
There are some caveats associated with this feature. For example, bitmap
subtitles will always be rendered in their usual position, so selecting a
bitmap subtitle as secondary subtitle will result in overlapping subtitles.
Secondary subtitles are never shown on the terminal if video is disabled.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Styling and interpretation of any formatting tags is disabled for the
secondary subtitle. Internally, the same mechanism as \fB\-\-no\-sub\-ass\fP
is used to strip the styling.
.UNINDENT
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
If the main subtitle stream contains formatting tags which display the
subtitle at the top of the screen, it will overlap with the secondary
subtitle. To prevent this, you could use \fB\-\-no\-sub\-ass\fP to disable
styling in the main subtitle stream.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-scale=<0\-100>\fP
Factor for the text subtitle font size (default: 1).
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This affects ASS subtitles as well, and may lead to incorrect subtitle
rendering. Use with care, or use \fB\-\-sub\-font\-size\fP instead.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-scale\-by\-window=<yes|no>\fP
Whether to scale subtitles with the window size (default: yes). If this is
disabled, changing the window size won\(aqt change the subtitle font size.
.sp
Like \fB\-\-sub\-scale\fP, this can break ASS subtitles.
.TP
.B \fB\-\-sub\-scale\-with\-window=<yes|no>\fP
Make the subtitle font size relative to the window, instead of the video.
This is useful if you always want the same font size, even if the video
doesn\(aqt cover the window fully, e.g. because screen aspect and window
aspect mismatch (and the player adds black bars).
.sp
Default: yes.
.sp
This option is misnamed. The difference to the confusingly similar sounding
option \fB\-\-sub\-scale\-by\-window\fP is that \fB\-\-sub\-scale\-with\-window\fP still
scales with the approximate window size, while the other option disables
this scaling.
.sp
Affects plain text subtitles only (or ASS if \fB\-\-sub\-ass\-override\fP is set
high enough).
.TP
.B \fB\-\-sub\-ass\-scale\-with\-window=<yes|no>\fP
Like \fB\-\-sub\-scale\-with\-window\fP, but affects subtitles in ASS format only.
Like \fB\-\-sub\-scale\fP, this can break ASS subtitles.
.sp
Default: no.
.TP
.B \fB\-\-embeddedfonts=<yes|no>\fP
Use fonts embedded in Matroska container files and ASS scripts (default:
yes). These fonts can be used for SSA/ASS subtitle rendering.
.TP
.B \fB\-\-sub\-pos=<0\-100>\fP
Specify the position of subtitles on the screen. The value is the vertical
position of the subtitle in % of the screen height.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This affects ASS subtitles as well, and may lead to incorrect subtitle
rendering. Use with care, or use \fB\-\-sub\-margin\-y\fP instead.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-speed=<0.1\-10.0>\fP
Multiply the subtitle event timestamps with the given value. Can be used
to fix the playback speed for frame\-based subtitle formats. Affects text
subtitles only.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fB\-\-sub\-speed=25/23.976\fP plays frame based subtitles which have been
loaded assuming a framerate of 23.976 at 25 FPS.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-ass\-force\-style=<[Style.]Param=Value[,...]>\fP
Override some style or script info parameters.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-sub\-ass\-force\-style=FontName=Arial,Default.Bold=1\fP
.IP \(bu 2
\fB\-\-sub\-ass\-force\-style=PlayResY=768\fP
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Using this option may lead to incorrect subtitle rendering.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-ass\-hinting=<none|light|normal|native>\fP
Set font hinting type. <type> can be:
.INDENT 7.0
.TP
.B none
no hinting (default)
.TP
.B light
FreeType autohinter, light mode
.TP
.B normal
FreeType autohinter, normal mode
.TP
.B native
font native hinter
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
Enabling hinting can lead to mispositioned text (in situations it\(aqs
supposed to match up video background), or reduce the smoothness
of animations with some badly authored ASS scripts. It is recommended
to not use this option, unless really needed.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-ass\-line\-spacing=<value>\fP
Set line spacing value for SSA/ASS renderer.
.TP
.B \fB\-\-sub\-ass\-shaper=<simple|complex>\fP
Set the text layout engine used by libass.
.INDENT 7.0
.TP
.B simple
uses Fribidi only, fast, doesn\(aqt render some languages correctly
.TP
.B complex
uses HarfBuzz, slower, wider language support
.UNINDENT
.sp
\fBcomplex\fP is the default. If libass hasn\(aqt been compiled against HarfBuzz,
libass silently reverts to \fBsimple\fP\&.
.TP
.B \fB\-\-sub\-ass\-styles=<filename>\fP
Load all SSA/ASS styles found in the specified file and use them for
rendering text subtitles. The syntax of the file is exactly like the \fB[V4
Styles]\fP / \fB[V4+ Styles]\fP section of SSA/ASS.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Using this option may lead to incorrect subtitle rendering.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-ass\-override=<yes|no|force|scale|strip>\fP
Control whether user style overrides should be applied. Note that all of
these overrides try to be somewhat smart about figuring out whether or not
a subtitle is considered a "sign".
.INDENT 7.0
.TP
.B no
Render subtitles as specified by the subtitle scripts, without
overrides.
.TP
.B yes
Apply all the \fB\-\-sub\-ass\-*\fP style override options. Changing the
default for any of these options can lead to incorrect subtitle
rendering (default).
.TP
.B force
Like \fByes\fP, but also force all \fB\-\-sub\-*\fP options. Can break
rendering easily.
.TP
.B scale
Like \fByes\fP, but also apply \fB\-\-sub\-scale\fP\&.
.TP
.B strip
Radically strip all ASS tags and styles from the subtitle. This
is equivalent to the old \fB\-\-no\-ass\fP / \fB\-\-no\-sub\-ass\fP options.
.UNINDENT
.sp
This also controls some bitmap subtitle overrides, as well as HTML tags in
formats like SRT, despite the name of the option.
.TP
.B \fB\-\-sub\-ass\-force\-margins\fP
Enables placing toptitles and subtitles in black borders when they are
available, if the subtitles are in the ASS format.
.sp
Default: no.
.TP
.B \fB\-\-sub\-use\-margins\fP
Enables placing toptitles and subtitles in black borders when they are
available, if the subtitles are in a plain text format  (or ASS if
\fB\-\-sub\-ass\-override\fP is set high enough).
.sp
Default: yes.
.sp
Renamed from \fB\-\-sub\-ass\-use\-margins\fP\&. To place ASS subtitles in the borders
too (like the old option did), also add \fB\-\-sub\-ass\-force\-margins\fP\&.
.TP
.B \fB\-\-sub\-ass\-vsfilter\-aspect\-compat=<yes|no>\fP
Stretch SSA/ASS subtitles when playing anamorphic videos for compatibility
with traditional VSFilter behavior. This switch has no effect when the
video is stored with square pixels.
.sp
The renderer historically most commonly used for the SSA/ASS subtitle
formats, VSFilter, had questionable behavior that resulted in subtitles
being stretched too if the video was stored in anamorphic format that
required scaling for display.  This behavior is usually undesirable and
newer VSFilter versions may behave differently. However, many existing
scripts compensate for the stretching by modifying things in the opposite
direction.  Thus, if such scripts are displayed "correctly", they will not
appear as intended.  This switch enables emulation of the old VSFilter
behavior (undesirable but expected by many existing scripts).
.sp
Enabled by default.
.TP
.B \fB\-\-sub\-ass\-vsfilter\-blur\-compat=<yes|no>\fP
Scale \fB\eblur\fP tags by video resolution instead of script resolution
(enabled by default). This is bug in VSFilter, which according to some,
can\(aqt be fixed anymore in the name of compatibility.
.sp
Note that this uses the actual video resolution for calculating the
offset scale factor, not what the video filter chain or the video output
use.
.TP
.B \fB\-\-sub\-ass\-vsfilter\-color\-compat=<basic|full|force\-601|no>\fP
Mangle colors like (xy\-)vsfilter do (default: basic). Historically, VSFilter
was not color space aware. This was no problem as long as the color space
used for SD video (BT.601) was used. But when everything switched to HD
(BT.709), VSFilter was still converting RGB colors to BT.601, rendered
them into the video frame, and handled the frame to the video output, which
would use BT.709 for conversion to RGB. The result were mangled subtitle
colors. Later on, bad hacks were added on top of the ASS format to control
how colors are to be mangled.
.INDENT 7.0
.TP
.B basic
Handle only BT.601\->BT.709 mangling, if the subtitles seem to
indicate that this is required (default).
.TP
.B full
Handle the full \fBYCbCr Matrix\fP header with all video color spaces
supported by libass and mpv. This might lead to bad breakages in
corner cases and is not strictly needed for compatibility
(hopefully), which is why this is not default.
.TP
.B force\-601
Force BT.601\->BT.709 mangling, regardless of subtitle headers
or video color space.
.TP
.B no
Disable color mangling completely. All colors are RGB.
.UNINDENT
.sp
Choosing anything other than \fBno\fP will make the subtitle color depend on
the video color space, and it\(aqs for example in theory not possible to reuse
a subtitle script with another video file. The \fB\-\-sub\-ass\-override\fP
option doesn\(aqt affect how this option is interpreted.
.TP
.B \fB\-\-stretch\-dvd\-subs=<yes|no>\fP
Stretch DVD subtitles when playing anamorphic videos for better looking
fonts on badly mastered DVDs. This switch has no effect when the
video is stored with square pixels \- which for DVD input cannot be the case
though.
.sp
Many studios tend to use bitmap fonts designed for square pixels when
authoring DVDs, causing the fonts to look stretched on playback on DVD
players. This option fixes them, however at the price of possibly
misaligning some subtitles (e.g. sign translations).
.sp
Disabled by default.
.TP
.B \fB\-\-stretch\-image\-subs\-to\-screen=<yes|no>\fP
Stretch DVD and other image subtitles to the screen, ignoring the video
margins. This has a similar effect as \fB\-\-sub\-use\-margins\fP for text
subtitles, except that the text itself will be stretched, not only just
repositioned. (At least in general it is unavoidable, as an image bitmap
can in theory consist of a single bitmap covering the whole screen, and
the player won\(aqt know where exactly the text parts are located.)
.sp
This option does not display subtitles correctly. Use with care.
.sp
Disabled by default.
.TP
.B \fB\-\-image\-subs\-video\-resolution=<yes|no>\fP
Override the image subtitle resolution with the video resolution
(default: no). Normally, the subtitle canvas is fit into the video canvas
(e.g. letterboxed). Setting this option uses the video size as subtitle
canvas size. Can be useful to test broken subtitles, which often happen
when the video was trancoded, while attempting to keep the old subtitles.
.TP
.B \fB\-\-sub\-ass\fP, \fB\-\-no\-sub\-ass\fP
Render ASS subtitles natively (enabled by default).
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This has been deprecated by \fB\-\-sub\-ass\-override=strip\fP\&. You also
may need \fB\-\-embeddedfonts=no\fP to get the same behavior. Also,
using \fB\-\-sub\-ass\-override=style\fP should give better results
without breaking subtitles too much.
.UNINDENT
.UNINDENT
.sp
If \fB\-\-no\-sub\-ass\fP is specified, all tags and style declarations are
stripped and ignored on display. The subtitle renderer uses the font style
as specified by the \fB\-\-sub\-\fP options instead.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Using \fB\-\-no\-sub\-ass\fP may lead to incorrect or completely broken
rendering of ASS/SSA subtitles. It can sometimes be useful to forcibly
override the styling of ASS subtitles, but should be avoided in general.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-auto=<no|exact|fuzzy|all>\fP, \fB\-\-no\-sub\-auto\fP
Load additional subtitle files matching the video filename. The parameter
specifies how external subtitle files are matched. \fBexact\fP is enabled by
default.
.INDENT 7.0
.TP
.B no
Don\(aqt automatically load external subtitle files.
.TP
.B exact
Load the media filename with subtitle file extension (default).
.TP
.B fuzzy
Load all subs containing media filename.
.TP
.B all
Load all subs in the current and \fB\-\-sub\-file\-paths\fP directories.
.UNINDENT
.TP
.B \fB\-\-sub\-codepage=<codepage>\fP
You can use this option to specify the subtitle codepage. uchardet will be
used to guess the charset. (If mpv was not compiled with uchardet, then
\fButf\-8\fP is the effective default.)
.sp
The default value for this option is \fBauto\fP, which enables autodetection.
.sp
The following steps are taken to determine the final codepage, in order:
.INDENT 7.0
.IP \(bu 2
if the specific codepage has a \fB+\fP, use that codepage
.IP \(bu 2
if the data looks like UTF\-8, assume it is UTF\-8
.IP \(bu 2
if \fB\-\-sub\-codepage\fP is set to a specific codepage, use that
.IP \(bu 2
run uchardet, and if successful, use that
.IP \(bu 2
otherwise, use \fBUTF\-8\-BROKEN\fP
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-sub\-codepage=latin2\fP Use Latin 2 if input is not UTF\-8.
.IP \(bu 2
\fB\-\-sub\-codepage=+cp1250\fP Always force recoding to cp1250.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
The pseudo codepage \fBUTF\-8\-BROKEN\fP is used internally. If it\(aqs set,
subtitles are interpreted as UTF\-8 with "Latin 1" as fallback for bytes
which are not valid UTF\-8 sequences. iconv is never involved in this mode.
.sp
This option changed in mpv 0.23.0. Support for the old syntax was fully
removed in mpv 0.24.0.
.TP
.B \fB\-\-sub\-fix\-timing=<yes|no>\fP
Adjust subtitle timing is to remove minor gaps or overlaps between
subtitles (if the difference is smaller than 210 ms, the gap or overlap
is removed).
.TP
.B \fB\-\-sub\-forced\-only\fP
Display only forced subtitles for the DVD subtitle stream selected by e.g.
\fB\-\-slang\fP\&.
.TP
.B \fB\-\-sub\-fps=<rate>\fP
Specify the framerate of the subtitle file (default: video fps). Affects
text subtitles only.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
\fB<rate>\fP > video fps speeds the subtitles up for frame\-based
subtitle files and slows them down for time\-based ones.
.UNINDENT
.UNINDENT
.sp
See also: \fB\-\-sub\-speed\fP\&.
.TP
.B \fB\-\-sub\-gauss=<0.0\-3.0>\fP
Apply Gaussian blur to image subtitles (default: 0). This can help to make
pixelated DVD/Vobsubs look nicer. A value other than 0 also switches to
software subtitle scaling. Might be slow.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Never applied to text subtitles.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-gray\fP
Convert image subtitles to grayscale. Can help to make yellow DVD/Vobsubs
look nicer.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Never applied to text subtitles.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-paths=<path1:path2:...>\fP
Deprecated, use \fB\-\-sub\-file\-paths\fP\&.
.TP
.B \fB\-\-sub\-file\-paths=<path\-list>\fP
Specify extra directories to search for subtitles matching the video.
Multiple directories can be separated by ":" (";" on Windows).
Paths can be relative or absolute. Relative paths are interpreted relative
to video file directory.
If the file is a URL, only absolute paths and \fBsub\fP configuration
subdirectory will be scanned.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
Assuming that \fB/path/to/video/video.avi\fP is played and
\fB\-\-sub\-file\-paths=sub:subtitles\fP is specified, mpv
searches for subtitle files in these directories:
.INDENT 0.0
.IP \(bu 2
\fB/path/to/video/\fP
.IP \(bu 2
\fB/path/to/video/sub/\fP
.IP \(bu 2
\fB/path/to/video/subtitles/\fP
.IP \(bu 2
the \fBsub\fP configuration subdirectory (usually \fB~/.config/mpv/sub/\fP)
.UNINDENT
.UNINDENT
.UNINDENT
.sp
This is a path list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-sub\-visibility\fP, \fB\-\-no\-sub\-visibility\fP
Can be used to disable display of subtitles, but still select and decode
them.
.TP
.B \fB\-\-sub\-clear\-on\-seek\fP
(Obscure, rarely useful.) Can be used to play broken mkv files with
duplicate ReadOrder fields. ReadOrder is the first field in a
Matroska\-style ASS subtitle packets. It should be unique, and libass
uses it for fast elimination of duplicates. This option disables caching
of subtitles across seeks, so after a seek libass can\(aqt eliminate subtitle
packets with the same ReadOrder as earlier packets.
.TP
.B \fB\-\-teletext\-page=<1\-999>\fP
This works for \fBdvb_teletext\fP subtitle streams, and if FFmpeg has been
compiled with support for it.
.TP
.B \fB\-\-sub\-font=<name>\fP
Specify font to use for subtitles that do not themselves
specify a particular font. The default is \fBsans\-serif\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-sub\-font=\(aqBitstream Vera Sans\(aq\fP
.IP \(bu 2
\fB\-\-sub\-font=\(aqComic Sans MS\(aq\fP
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
The \fB\-\-sub\-font\fP option (and many other style related \fB\-\-sub\-\fP
options) are ignored when ASS\-subtitles are rendered, unless the
\fB\-\-no\-sub\-ass\fP option is specified.
.sp
This used to support fontconfig patterns. Starting with libass 0.13.0,
this stopped working.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-font\-size=<size>\fP
Specify the sub font size. The unit is the size in scaled pixels at a
window height of 720. The actual pixel size is scaled with the window
height: if the window height is larger or smaller than 720, the actual size
of the text increases or decreases as well.
.sp
Default: 55.
.TP
.B \fB\-\-sub\-back\-color=<color>\fP
See \fB\-\-sub\-color\fP\&. Color used for sub text background. You can use
\fB\-\-sub\-shadow\-offset\fP to change its size relative to the text.
.TP
.B \fB\-\-sub\-blur=<0..20.0>\fP
Gaussian blur factor. 0 means no blur applied (default).
.TP
.B \fB\-\-sub\-bold=<yes|no>\fP
Format text on bold.
.TP
.B \fB\-\-sub\-italic=<yes|no>\fP
Format text on italic.
.TP
.B \fB\-\-sub\-border\-color=<color>\fP
See \fB\-\-sub\-color\fP\&. Color used for the sub font border.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
ignored when \fB\-\-sub\-back\-color\fP is
specified (or more exactly: when that option is not set to completely
transparent).
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-border\-size=<size>\fP
Size of the sub font border in scaled pixels (see \fB\-\-sub\-font\-size\fP
for details). A value of 0 disables borders.
.sp
Default: 3.
.TP
.B \fB\-\-sub\-color=<color>\fP
Specify the color used for unstyled text subtitles.
.sp
The color is specified in the form \fBr/g/b\fP, where each color component
is specified as number in the range 0.0 to 1.0. It\(aqs also possible to
specify the transparency by using \fBr/g/b/a\fP, where the alpha value 0
means fully transparent, and 1.0 means opaque. If the alpha component is
not given, the color is 100% opaque.
.sp
Passing a single number to the option sets the sub to gray, and the form
\fBgray/a\fP lets you specify alpha additionally.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-sub\-color=1.0/0.0/0.0\fP set sub to opaque red
.IP \(bu 2
\fB\-\-sub\-color=1.0/0.0/0.0/0.75\fP set sub to opaque red with 75% alpha
.IP \(bu 2
\fB\-\-sub\-color=0.5/0.75\fP set sub to 50% gray with 75% alpha
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Alternatively, the color can be specified as a RGB hex triplet in the form
\fB#RRGGBB\fP, where each 2\-digit group expresses a color value in the
range 0 (\fB00\fP) to 255 (\fBFF\fP). For example, \fB#FF0000\fP is red.
This is similar to web colors. Alpha is given with \fB#AARRGGBB\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-sub\-color=\(aq#FF0000\(aq\fP set sub to opaque red
.IP \(bu 2
\fB\-\-sub\-color=\(aq#C0808080\(aq\fP set sub to 50% gray with 75% alpha
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-sub\-margin\-x=<size>\fP
Left and right screen margin for the subs in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details).
.sp
This option specifies the distance of the sub to the left, as well as at
which distance from the right border long sub text will be broken.
.sp
Default: 25.
.TP
.B \fB\-\-sub\-margin\-y=<size>\fP
Top and bottom screen margin for the subs in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details).
.sp
This option specifies the vertical margins of unstyled text subtitles.
If you just want to raise the vertical subtitle position, use \fB\-\-sub\-pos\fP\&.
.sp
Default: 22.
.TP
.B \fB\-\-sub\-align\-x=<left|center|right>\fP
Control to which corner of the screen text subtitles should be
aligned to (default: \fBcenter\fP).
.sp
Never applied to ASS subtitles, except in \fB\-\-no\-sub\-ass\fP mode. Likewise,
this does not apply to image subtitles.
.TP
.B \fB\-\-sub\-align\-y=<top|center|bottom>\fP
Vertical position (default: \fBbottom\fP).
Details see \fB\-\-sub\-align\-x\fP\&.
.TP
.B \fB\-\-sub\-justify=<auto|left|center|right>\fP
Control how multi line subs are justified irrespective of where they
are aligned (default: \fBauto\fP which justifies as defined by
\fB\-\-sub\-align\-y\fP).
Left justification is recommended to make the subs easier to read
as it is easier for the eyes.
.TP
.B \fB\-\-sub\-ass\-justify=<yes|no>\fP
Applies justification as defined by \fB\-\-sub\-justify\fP on ASS subtitles
if \fB\-\-sub\-ass\-override\fP is not set to \fBno\fP\&.
Default: \fBno\fP\&.
.TP
.B \fB\-\-sub\-shadow\-color=<color>\fP
See \fB\-\-sub\-color\fP\&. Color used for sub text shadow.
.TP
.B \fB\-\-sub\-shadow\-offset=<size>\fP
Displacement of the sub text shadow in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details). A value of 0 disables shadows.
.sp
Default: 0.
.TP
.B \fB\-\-sub\-spacing=<size>\fP
Horizontal sub font spacing in scaled pixels (see \fB\-\-sub\-font\-size\fP
for details). This value is added to the normal letter spacing. Negative
values are allowed.
.sp
Default: 0.
.TP
.B \fB\-\-sub\-filter\-sdh=<yes|no>\fP
Applies filter removing subtitle additions for the deaf or hard\-of\-hearing (SDH).
This is intended for English, but may in part work for other languages too.
The intention is that it can be always enabled so may not remove
all parts added.
It removes speaker labels (like MAN:), upper case text in parentheses and
any text in brackets.
.sp
Default: \fBno\fP\&.
.TP
.B \fB\-\-sub\-filter\-sdh\-harder=<yes|no>\fP
Do harder SDH filtering (if enabled by \fB\-\-sub\-filter\-sdh\fP).
Will also remove speaker labels and text within parentheses using both
lower and upper case letters.
.sp
Default: \fBno\fP\&.
.TP
.B \fB\-\-sub\-create\-cc\-track=<yes|no>\fP
For every video stream, create a closed captions track (default: no). The
only purpose is to make the track available for selection at the start of
playback, instead of creating it lazily. This applies only to
\fBATSC A53 Part 4 Closed Captions\fP (displayed by mpv as subtitle tracks
using the codec \fBeia_608\fP). The CC track is marked "default" and selected
according to the normal subtitle track selection rules. You can then use
\fB\-\-sid\fP to explicitly select the correct track too.
.sp
If the video stream contains no closed captions, or if no video is being
decoded, the CC track will remain empty and will not show any text.
.TP
.B \fB\-\-sub\-font\-provider=<auto|none|fontconfig>\fP
Which libass font provider backend to use (default: auto). \fBauto\fP will
attempt to use the native font provider: fontconfig on Linux, CoreText on
OSX, DirectWrite on Windows. \fBfontconfig\fP forces fontconfig, if libass
was built with support (if not, it behaves like \fBnone\fP).
.sp
The \fBnone\fP font provider effectively disables system fonts. It will still
attempt to use embedded fonts (unless \fB\-\-embeddedfonts=no\fP is set; this is
the same behavior as with all other font providers), \fBsubfont.ttf\fP if
provided, and fonts in  the \fBfonts\fP sub\-directory if provided. (The
fallback is more strict than that of other font providers, and if a font
name does not match, it may prefer not to render any text that uses the
missing font.)
.UNINDENT
.SS Window
.INDENT 0.0
.TP
.B \fB\-\-title=<string>\fP
Set the window title. This is used for the video window, and if possible,
also sets the audio stream title.
.sp
Properties are expanded. (See \fI\%Property Expansion\fP\&.)
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
There is a danger of this causing significant CPU usage, depending on
the properties used. Changing the window title is often a slow
operation, and if the title changes every frame, playback can be ruined.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-screen=<default|0\-32>\fP
In multi\-monitor configurations (i.e. a single desktop that spans across
multiple displays), this option tells mpv which screen to display the
video on.
.INDENT 7.0
.INDENT 3.5
.IP "Note (X11)"
.sp
This option does not work properly with all window managers. In these
cases, you can try to use \fB\-\-geometry\fP to position the window
explicitly. It\(aqs also possible that the window manager provides native
features to control which screens application windows should use.
.UNINDENT
.UNINDENT
.sp
See also \fB\-\-fs\-screen\fP\&.
.TP
.B \fB\-\-fullscreen\fP, \fB\-\-fs\fP
Fullscreen playback.
.TP
.B \fB\-\-fs\-screen=<all|current|0\-32>\fP
In multi\-monitor configurations (i.e. a single desktop that spans across
multiple displays), this option tells mpv which screen to go fullscreen to.
If \fBcurrent\fP is used mpv will fallback on what the user provided with
the \fBscreen\fP option.
.INDENT 7.0
.INDENT 3.5
.IP "Note (X11)"
.sp
This option works properly only with window managers which
understand the EWMH \fB_NET_WM_FULLSCREEN_MONITORS\fP hint.
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Note (OS X)"
.sp
\fBall\fP does not work on OS X and will behave like \fBcurrent\fP\&.
.UNINDENT
.UNINDENT
.sp
See also \fB\-\-screen\fP\&.
.TP
.B \fB\-\-keep\-open=<yes|no|always>\fP
Do not terminate when playing or seeking beyond the end of the file, and
there is not next file to be played (and \fB\-\-loop\fP is not used).
Instead, pause the player. When trying to seek beyond end of the file, the
player will attempt to seek to the last frame.
.sp
Normally, this will act like \fBset pause yes\fP on EOF, unless the
\fB\-\-keep\-open\-pause=no\fP option is set.
.sp
The following arguments can be given:
.INDENT 7.0
.TP
.B no
If the current file ends, go to the next file or terminate.
(Default.)
.TP
.B yes
Don\(aqt terminate if the current file is the last playlist entry.
Equivalent to \fB\-\-keep\-open\fP without arguments.
.TP
.B always
Like \fByes\fP, but also applies to files before the last playlist
entry. This means playback will never automatically advance to
the next file.
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This option is not respected when using \fB\-\-frames\fP\&. Explicitly
skipping to the next file if the binding uses \fBforce\fP will terminate
playback as well.
.sp
Also, if errors or unusual circumstances happen, the player can quit
anyway.
.UNINDENT
.UNINDENT
.sp
Since mpv 0.6.0, this doesn\(aqt pause if there is a next file in the playlist,
or the playlist is looped. Approximately, this will pause when the player
would normally exit, but in practice there are corner cases in which this
is not the case (e.g. \fBmpv \-\-keep\-open file.mkv /dev/null\fP will play
file.mkv normally, then fail to open \fB/dev/null\fP, then exit). (In
mpv 0.8.0, \fBalways\fP was introduced, which restores the old behavior.)
.TP
.B \fB\-\-keep\-open\-pause=<yes|no>\fP
If set to \fBno\fP, instead of pausing when \fB\-\-keep\-open\fP is active, just
stop at end of file and continue playing forward when you seek backwards
until end where it stops again. Default: \fByes\fP\&.
.TP
.B \fB\-\-image\-display\-duration=<seconds|inf>\fP
If the current file is an image, play the image for the given amount of
seconds (default: 1). \fBinf\fP means the file is kept open forever (until
the user stops playback manually).
.sp
Unlike \fB\-\-keep\-open\fP, the player is not paused, but simply continues
playback until the time has elapsed. (It should not use any resources
during "playback".)
.sp
This affects image files, which are defined as having only 1 video frame
and no audio. The player may recognize certain non\-images as images, for
example if \fB\-\-length\fP is used to reduce the length to 1 frame, or if
you seek to the last frame.
.sp
This option does not affect the framerate used for \fBmf://\fP or
\fB\-\-merge\-files\fP\&. For that, use \fB\-\-mf\-fps\fP instead.
.sp
Setting \fB\-\-image\-display\-duration\fP hides the OSC and does not track
playback time on the command\-line output, and also does not duplicate
the image frame when encoding. To force the player into "dumb mode"
and actually count out seconds, or to duplicate the image when
encoding, you need to use \fB\-\-demuxer=lavf \-\-demuxer\-lavf\-o=loop=1\fP,
and use \fB\-\-length\fP or \fB\-\-frames\fP to stop after a particular time.
.TP
.B \fB\-\-force\-window=<yes|no|immediate>\fP
Create a video output window even if there is no video. This can be useful
when pretending that mpv is a GUI application. Currently, the window
always has the size 640x480, and is subject to \fB\-\-geometry\fP,
\fB\-\-autofit\fP, and similar options.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
The window is created only after initialization (to make sure default
window placement still works if the video size is different from the
\fB\-\-force\-window\fP default window size). This can be a problem if
initialization doesn\(aqt work perfectly, such as when opening URLs with
bad network connection, or opening broken video files. The \fBimmediate\fP
mode can be used to create the window always on program start, but this
may cause other issues.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-taskbar\-progress\fP, \fB\-\-no\-taskbar\-progress\fP
(Windows only)
Enable/disable playback progress rendering in taskbar (Windows 7 and above).
.sp
Enabled by default.
.TP
.B \fB\-\-snap\-window\fP
(Windows only) Snap the player window to screen edges.
.TP
.B \fB\-\-ontop\fP
Makes the player window stay on top of other windows.
.sp
On Windows, if combined with fullscreen mode, this causes mpv to be
treated as exclusive fullscreen window that bypasses the Desktop Window
Manager.
.TP
.B \fB\-\-ontop\-level=<window|system|level>\fP
(OS X only)
Sets the level of an ontop window (default: window).
.INDENT 7.0
.TP
.B window
On top of all other windows.
.TP
.B system
On top of system elements like Taskbar, Menubar and Dock.
.TP
.B level
A level as integer.
.UNINDENT
.TP
.B \fB\-\-border\fP, \fB\-\-no\-border\fP
Play video with window border and decorations. Since this is on by
default, use \fB\-\-no\-border\fP to disable the standard window decorations.
.TP
.B \fB\-\-fit\-border\fP, \fB\-\-no\-fit\-border\fP
(Windows only) Fit the whole window with border and decorations on the
screen. Since this is on by default, use \fB\-\-no\-fit\-border\fP to make mpv
try to only fit client area with video on the screen. This behavior only
applied to window/video with size exceeding size of the screen.
.TP
.B \fB\-\-on\-all\-workspaces\fP
(X11 only)
Show the video window on all virtual desktops.
.TP
.B \fB\-\-geometry=<[W[xH]][+\-x+\-y]>\fP, \fB\-\-geometry=<x:y>\fP
Adjust the initial window position or size. \fBW\fP and \fBH\fP set the window
size in pixels. \fBx\fP and \fBy\fP set the window position, measured in pixels
from the top\-left corner of the screen to the top\-left corner of the image
being displayed. If a percentage sign (\fB%\fP) is given after the argument,
it turns the value into a percentage of the screen size in that direction.
Positions are specified similar to the standard X11 \fB\-\-geometry\fP option
format, in which e.g. +10\-50 means "place 10 pixels from the left border and
50 pixels from the lower border" and "\-\-20+\-10" means "place 20 pixels
beyond the right and 10 pixels beyond the top border".
.sp
If an external window is specified using the \fB\-\-wid\fP option, this
option is ignored.
.sp
The coordinates are relative to the screen given with \fB\-\-screen\fP for the
video output drivers that fully support \fB\-\-screen\fP\&.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Generally only supported by GUI VOs. Ignored for encoding.
.UNINDENT
.UNINDENT
.\" admonition: Note (OS X)
.\" 
.\" On Mac OS X the origin of the screen coordinate system is located on the
.\" bottom-left corner. For instance, ``0:0`` will place the window at the
.\" bottom-left of the screen.
.
.INDENT 7.0
.INDENT 3.5
.IP "Note (X11)"
.sp
This option does not work properly with all window managers.
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB50:40\fP
Places the window at x=50, y=40.
.TP
.B \fB50%:50%\fP
Places the window in the middle of the screen.
.TP
.B \fB100%:100%\fP
Places the window at the bottom right corner of the screen.
.TP
.B \fB50%\fP
Sets the window width to half the screen width. Window height is set
so that the window has the video aspect ratio.
.TP
.B \fB50%x50%\fP
Forces the window width and height to half the screen width and
height. Will show black borders to compensate for the video aspect
ratio (with most VOs and without \fB\-\-no\-keepaspect\fP).
.TP
.B \fB50%+10+10\fP
Sets the window to half the screen widths, and positions it 10
pixels below/left of the top left corner of the screen.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
See also \fB\-\-autofit\fP and \fB\-\-autofit\-larger\fP for fitting the window into
a given size without changing aspect ratio.
.TP
.B \fB\-\-autofit=<[W[xH]]>\fP
Set the initial window size to a maximum size specified by \fBWxH\fP, without
changing the window\(aqs aspect ratio. The size is measured in pixels, or if
a number is followed by a percentage sign (\fB%\fP), in percents of the
screen size.
.sp
This option never changes the aspect ratio of the window. If the aspect
ratio mismatches, the window\(aqs size is reduced until it fits into the
specified size.
.sp
Window position is not taken into account, nor is it modified by this
option (the window manager still may place the window differently depending
on size). Use \fB\-\-geometry\fP to change the window position. Its effects
are applied after this option.
.sp
See \fB\-\-geometry\fP for details how this is handled with multi\-monitor
setups.
.sp
Use \fB\-\-autofit\-larger\fP instead if you just want to limit the maximum size
of the window, rather than always forcing a window size.
.sp
Use \fB\-\-geometry\fP if you want to force both window width and height to a
specific size.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Generally only supported by GUI VOs. Ignored for encoding.
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB70%\fP
Make the window width 70% of the screen size, keeping aspect ratio.
.TP
.B \fB1000\fP
Set the window width to 1000 pixels, keeping aspect ratio.
.TP
.B \fB70%x60%\fP
Make the window as large as possible, without being wider than 70%
of the screen width, or higher than 60% of the screen height.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-autofit\-larger=<[W[xH]]>\fP
This option behaves exactly like \fB\-\-autofit\fP, except the window size is
only changed if the window would be larger than the specified size.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B \fB90%x80%\fP
If the video is larger than 90% of the screen width or 80% of the
screen height, make the window smaller until either its width is 90%
of the screen, or its height is 80% of the screen.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-autofit\-smaller=<[W[xH]]>\fP
This option behaves exactly like \fB\-\-autofit\fP, except that it sets the
minimum size of the window (just as \fB\-\-autofit\-larger\fP sets the maximum).
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B \fB500x500\fP
Make the window at least 500 pixels wide and 500 pixels high
(depending on the video aspect ratio, the width or height will be
larger than 500 in order to keep the aspect ratio the same).
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-window\-scale=<factor>\fP
Resize the video window to a multiple (or fraction) of the video size. This
option is applied before \fB\-\-autofit\fP and other options are applied (so
they override this option).
.sp
For example, \fB\-\-window\-scale=0.5\fP would show the window at half the
video size.
.TP
.B \fB\-\-window\-minimized=<yes|no>\fP
Whether the video window is minimized or not. Setting this will minimize,
or unminimze, the video window if the current VO supports it. Note that
some VOs may support minimization while not supporting unminimization
(eg: Wayland).
.sp
Whether this option and \fB\-\-window\-maximized\fP work on program start or
at runtime, and whether they\(aqre (at runtime) updated to reflect the actual
window state, heavily depends on the VO and the windowing system. Some VOs
simply do not implement them or parts of them, while other VOs may be
restricted by the windowing systems (especially Wayland).
.TP
.B \fB\-\-window\-maximized=<yes|no>\fP
Whether the video window is maximized or not. Setting this will maximize,
or unmaximize, the video window if the current VO supports it. See
\fB\-\-window\-minimized\fP for further remarks.
.TP
.B \fB\-\-cursor\-autohide=<number|no|always>\fP
Make mouse cursor automatically hide after given number of milliseconds.
\fBno\fP will disable cursor autohide. \fBalways\fP means the cursor will stay
hidden.
.TP
.B \fB\-\-cursor\-autohide\-fs\-only\fP
If this option is given, the cursor is always visible in windowed mode. In
fullscreen mode, the cursor is shown or hidden according to
\fB\-\-cursor\-autohide\fP\&.
.TP
.B \fB\-\-no\-fixed\-vo\fP, \fB\-\-fixed\-vo\fP
\fB\-\-no\-fixed\-vo\fP enforces closing and reopening the video window for
multiple files (one (un)initialization for each file).
.TP
.B \fB\-\-force\-rgba\-osd\-rendering\fP
Change how some video outputs render the OSD and text subtitles. This
does not change appearance of the subtitles and only has performance
implications. For VOs which support native ASS rendering (like \fBgpu\fP,
\fBvdpau\fP, \fBdirect3d\fP), this can be slightly faster or slower,
depending on GPU drivers and hardware. For other VOs, this just makes
rendering slower.
.TP
.B \fB\-\-force\-window\-position\fP
Forcefully move mpv\(aqs video output window to default location whenever
there is a change in video parameters, video stream or file. This used to
be the default behavior. Currently only affects X11 VOs.
.TP
.B \fB\-\-no\-keepaspect\fP, \fB\-\-keepaspect\fP
\fB\-\-no\-keepaspect\fP will always stretch the video to window size, and will
disable the window manager hints that force the window aspect ratio.
(Ignored in fullscreen mode.)
.TP
.B \fB\-\-no\-keepaspect\-window\fP, \fB\-\-keepaspect\-window\fP
\fB\-\-keepaspect\-window\fP (the default) will lock the window size to the
video aspect. \fB\-\-no\-keepaspect\-window\fP disables this behavior, and will
instead add black bars if window aspect and video aspect mismatch. Whether
this actually works depends on the VO backend.
(Ignored in fullscreen mode.)
.TP
.B \fB\-\-monitoraspect=<ratio>\fP
Set the aspect ratio of your monitor or TV screen. A value of 0 disables a
previous setting (e.g. in the config file). Overrides the
\fB\-\-monitorpixelaspect\fP setting if enabled.
.sp
See also \fB\-\-monitorpixelaspect\fP and \fB\-\-video\-aspect\-override\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-monitoraspect=4:3\fP  or \fB\-\-monitoraspect=1.3333\fP
.IP \(bu 2
\fB\-\-monitoraspect=16:9\fP or \fB\-\-monitoraspect=1.7777\fP
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-hidpi\-window\-scale\fP, \fB\-\-no\-hidpi\-window\-scale\fP
(OS X, X11, and Wayland only)
Scale the window size according to the backing scale factor (default: yes).
On regular HiDPI resolutions the window opens with double the size but appears
as having the same size as on none\-HiDPI resolutions. This is the default OS X
behavior.
.TP
.B \fB\-\-native\-fs\fP, \fB\-\-no\-native\-fs\fP
(OS X only)
Uses the native fullscreen mechanism of the OS (default: yes).
.TP
.B \fB\-\-monitorpixelaspect=<ratio>\fP
Set the aspect of a single pixel of your monitor or TV screen (default:
1). A value of 1 means square pixels (correct for (almost?) all LCDs). See
also \fB\-\-monitoraspect\fP and \fB\-\-video\-aspect\-override\fP\&.
.TP
.B \fB\-\-stop\-screensaver\fP, \fB\-\-no\-stop\-screensaver\fP
Turns off the screensaver (or screen blanker and similar mechanisms) at
startup and turns it on again on exit (default: yes). The screensaver is
always re\-enabled when the player is paused.
.sp
This is not supported on all video outputs or platforms. Sometimes it is
implemented, but does not work (especially with Linux "desktops").
.TP
.B \fB\-\-wid=<ID>\fP
This tells mpv to attach to an existing window. If a VO is selected that
supports this option, it will use that window for video output. mpv will
scale the video to the size of this window, and will add black bars to
compensate if the aspect ratio of the video is different.
.sp
On X11, the ID is interpreted as a \fBWindow\fP on X11. Unlike
MPlayer/mplayer2, mpv always creates its own window, and sets the wid
window as parent. The window will always be resized to cover the parent
window fully. The value \fB0\fP is interpreted specially, and mpv will
draw directly on the root window.
.sp
On win32, the ID is interpreted as \fBHWND\fP\&. Pass it as value cast to
\fBintptr_t\fP\&. mpv will create its own window, and set the wid window as
parent, like with X11.
.sp
On OSX/Cocoa, the ID is interpreted as \fBNSView*\fP\&. Pass it as value cast
to \fBintptr_t\fP\&. mpv will create its own sub\-view. Because OSX does not
support window embedding of foreign processes, this works only with libmpv,
and will crash when used from the command line.
.sp
On Android, the ID is interpreted as \fBandroid.view.Surface\fP\&. Pass it as a
value cast to \fBintptr_t\fP\&. Use with \fB\-\-vo=mediacodec_embed\fP and
\fB\-\-hwdec=mediacodec\fP for direct rendering using MediaCodec, or with
\fB\-\-vo=gpu \-\-gpu\-context=android\fP (with or without \fB\-\-hwdec=mediacodec\-copy\fP).
.TP
.B \fB\-\-no\-window\-dragging\fP
Don\(aqt move the window when clicking on it and moving the mouse pointer.
.TP
.B \fB\-\-x11\-name\fP
Set the window class name for X11\-based video output methods.
.TP
.B \fB\-\-x11\-netwm=<yes|no|auto>\fP
(X11 only)
Control the use of NetWM protocol features.
.sp
This may or may not help with broken window managers. This provides some
functionality that was implemented by the now removed \fB\-\-fstype\fP option.
Actually, it is not known to the developers to which degree this option
was needed, so feedback is welcome.
.sp
Specifically, \fByes\fP will force use of NetWM fullscreen support, even if
not advertised by the WM. This can be useful for WMs that are broken on
purpose, like XMonad. (XMonad supposedly doesn\(aqt advertise fullscreen
support, because Flash uses it. Apparently, applications which want to
use fullscreen anyway are supposed to either ignore the NetWM support hints,
or provide a workaround. Shame on XMonad for deliberately breaking X
protocols (as if X isn\(aqt bad enough already).
.sp
By default, NetWM support is autodetected (\fBauto\fP).
.sp
This option might be removed in the future.
.TP
.B \fB\-\-x11\-bypass\-compositor=<yes|no|fs\-only|never>\fP
If set to \fByes\fP, then ask the compositor to unredirect the mpv window
(default: \fBfs\-only\fP). This uses the \fB_NET_WM_BYPASS_COMPOSITOR\fP hint.
.sp
\fBfs\-only\fP asks the window manager to disable the compositor only in
fullscreen mode.
.sp
\fBno\fP sets \fB_NET_WM_BYPASS_COMPOSITOR\fP to 0, which is the default value
as declared by the EWMH specification, i.e. no change is done.
.sp
\fBnever\fP asks the window manager to never disable the compositor.
.UNINDENT
.SS Disc Devices
.INDENT 0.0
.TP
.B \fB\-\-cdrom\-device=<path>\fP
Specify the CD\-ROM device (default: \fB/dev/cdrom\fP).
.TP
.B \fB\-\-dvd\-device=<path>\fP
Specify the DVD device or .iso filename (default: \fB/dev/dvd\fP). You can
also specify a directory that contains files previously copied directly
from a DVD (with e.g. vobcopy).
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fBmpv dvd:// \-\-dvd\-device=/path/to/dvd/\fP
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-bluray\-device=<path>\fP
(Blu\-ray only)
Specify the Blu\-ray disc location. Must be a directory with Blu\-ray
structure.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fBmpv bd:// \-\-bluray\-device=/path/to/bd/\fP
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-cdda\-...\fP
These options can be used to tune the CD Audio reading feature of mpv.
.TP
.B \fB\-\-cdda\-speed=<value>\fP
Set CD spin speed.
.TP
.B \fB\-\-cdda\-paranoia=<0\-2>\fP
Set paranoia level. Values other than 0 seem to break playback of
anything but the first track.
.INDENT 7.0
.TP
.B 0
disable checking (default)
.TP
.B 1
overlap checking only
.TP
.B 2
full data correction and verification
.UNINDENT
.TP
.B \fB\-\-cdda\-sector\-size=<value>\fP
Set atomic read size.
.TP
.B \fB\-\-cdda\-overlap=<value>\fP
Force minimum overlap search during verification to <value> sectors.
.TP
.B \fB\-\-cdda\-toc\-bias\fP
Assume that the beginning offset of track 1 as reported in the TOC
will be addressed as LBA 0. Some discs need this for getting track
boundaries correctly.
.TP
.B \fB\-\-cdda\-toc\-offset=<value>\fP
Add \fB<value>\fP sectors to the values reported when addressing tracks.
May be negative.
.TP
.B \fB\-\-cdda\-skip=<yes|no>\fP
(Never) accept imperfect data reconstruction.
.TP
.B \fB\-\-cdda\-cdtext=<yes|no>\fP
Print CD text. This is disabled by default, because it ruins performance
with CD\-ROM drives for unknown reasons.
.TP
.B \fB\-\-dvd\-speed=<speed>\fP
Try to limit DVD speed (default: 0, no change). DVD base speed is 1385
kB/s, so an 8x drive can read at speeds up to 11080 kB/s. Slower speeds
make the drive more quiet. For watching DVDs, 2700 kB/s should be quiet and
fast enough. mpv resets the speed to the drive default value on close.
Values of at least 100 mean speed in kB/s. Values less than 100 mean
multiples of 1385 kB/s, i.e. \fB\-\-dvd\-speed=8\fP selects 11080 kB/s.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
You need write access to the DVD device to change the speed.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-dvd\-angle=<ID>\fP
Some DVDs contain scenes that can be viewed from multiple angles.
This option tells mpv which angle to use (default: 1).
.UNINDENT
.SS Equalizer
.INDENT 0.0
.TP
.B \fB\-\-brightness=<\-100\-100>\fP
Adjust the brightness of the video signal (default: 0). Not supported by
all video output drivers.
.TP
.B \fB\-\-contrast=<\-100\-100>\fP
Adjust the contrast of the video signal (default: 0). Not supported by all
video output drivers.
.TP
.B \fB\-\-saturation=<\-100\-100>\fP
Adjust the saturation of the video signal (default: 0). You can get
grayscale output with this option. Not supported by all video output
drivers.
.TP
.B \fB\-\-gamma=<\-100\-100>\fP
Adjust the gamma of the video signal (default: 0). Not supported by all
video output drivers.
.TP
.B \fB\-\-hue=<\-100\-100>\fP
Adjust the hue of the video signal (default: 0). You can get a colored
negative of the image with this option. Not supported by all video output
drivers.
.UNINDENT
.SS Demuxer
.INDENT 0.0
.TP
.B \fB\-\-demuxer=<[+]name>\fP
Force demuxer type. Use a \(aq+\(aq before the name to force it; this will skip
some checks. Give the demuxer name as printed by \fB\-\-demuxer=help\fP\&.
.TP
.B \fB\-\-demuxer\-lavf\-analyzeduration=<value>\fP
Maximum length in seconds to analyze the stream properties.
.TP
.B \fB\-\-demuxer\-lavf\-probe\-info=<yes|no|auto|nostreams>\fP
Whether to probe stream information (default: auto). Technically, this
controls whether libavformat\(aqs \fBavformat_find_stream_info()\fP function
is called. Usually it\(aqs safer to call it, but it can also make startup
slower.
.sp
The \fBauto\fP choice (the default) tries to skip this for a few know\-safe
whitelisted formats, while calling it for everything else.
.sp
The \fBnostreams\fP choice only calls it if and only if the file seems to
contain no streams after opening (helpful in cases when calling the function
is needed to detect streams at all, such as with FLV files).
.TP
.B \fB\-\-demuxer\-lavf\-probescore=<1\-100>\fP
Minimum required libavformat probe score. Lower values will require
less data to be loaded (makes streams start faster), but makes file
format detection less reliable. Can be used to force auto\-detected
libavformat demuxers, even if libavformat considers the detection not
reliable enough. (Default: 26.)
.TP
.B \fB\-\-demuxer\-lavf\-allow\-mimetype=<yes|no>\fP
Allow deriving the format from the HTTP MIME type (default: yes). Set
this to no in case playing things from HTTP mysteriously fails, even
though the same files work from local disk.
.sp
This is default in order to reduce latency when opening HTTP streams.
.TP
.B \fB\-\-demuxer\-lavf\-format=<name>\fP
Force a specific libavformat demuxer.
.TP
.B \fB\-\-demuxer\-lavf\-hacks=<yes|no>\fP
By default, some formats will be handled differently from other formats
by explicitly checking for them. Most of these compensate for weird or
imperfect behavior from libavformat demuxers. Passing \fBno\fP disables
these. For debugging and testing only.
.TP
.B \fB\-\-demuxer\-lavf\-o=<key>=<value>[,<key>=<value>[,...]]\fP
Pass AVOptions to libavformat demuxer.
.sp
Note, a patch to make the \fIo=\fP unneeded and pass all unknown options
through the AVOption system is welcome. A full list of AVOptions can
be found in the FFmpeg manual. Note that some options may conflict
with mpv options.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fB\-\-demuxer\-lavf\-o=fflags=+ignidx\fP
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-demuxer\-lavf\-probesize=<value>\fP
Maximum amount of data to probe during the detection phase. In the
case of MPEG\-TS this value identifies the maximum number of TS packets
to scan.
.TP
.B \fB\-\-demuxer\-lavf\-buffersize=<value>\fP
Size of the stream read buffer allocated for libavformat in bytes
(default: 32768). Lowering the size could lower latency. Note that
libavformat might reallocate the buffer internally, or not fully use all
of it.
.TP
.B \fB\-\-demuxer\-lavf\-linearize\-timestamps=<yes|no|auto>\fP
Attempt to linearize timestamp resets in demuxed streams (default: auto).
This was tested only for single audio streams. It\(aqs unknown whether it
works correctly for video (but likely won\(aqt). Note that the implementation
is slightly incorrect either way, and will introduce a discontinuity by
about 1 codec frame size.
.sp
The \fBauto\fP mode enables this for OGG audio stream. This covers the common
and annoying case of OGG web radio streams. Some of these will reset
timestamps to 0 every time a new song begins. This breaks the mpv seekable
cache, which can\(aqt deal with timestamp resets. Note that FFmpeg/libavformat\(aqs
seeking API can\(aqt deal with this either; it\(aqs likely that if this option
breaks this even more, while if it\(aqs disabled, you can at least seek within
the first song in the stream. Well, you won\(aqt get anything useful either
way if the seek is outside of mpv\(aqs cache.
.TP
.B \fB\-\-demuxer\-lavf\-propagate\-opts=<yes|no>\fP
Propagate FFmpeg\-level options to recursively opened connections (default:
yes). This is needed because FFmpeg will apply these settings to nested
AVIO contexts automatically. On the other hand, this could break in certain
situations \- it\(aqs the FFmpeg API, you just can\(aqt win.
.sp
This affects in particular the \fB\-\-timeout\fP option and anything passed
with \fB\-\-demuxer\-lavf\-o\fP\&.
.sp
If this option is deemed unnecessary at some point in the future, it will
be removed without notice.
.TP
.B \fB\-\-demuxer\-mkv\-subtitle\-preroll=<yes|index|no>\fP, \fB\-\-mkv\-subtitle\-preroll\fP
Try harder to show embedded soft subtitles when seeking somewhere. Normally,
it can happen that the subtitle at the seek target is not shown due to how
some container file formats are designed. The subtitles appear only if
seeking before or exactly to the position a subtitle first appears. To
make this worse, subtitles are often timed to appear a very small amount
before the associated video frame, so that seeking to the video frame
typically does not demux the subtitle at that position.
.sp
Enabling this option makes the demuxer start reading data a bit before the
seek target, so that subtitles appear correctly. Note that this makes
seeking slower, and is not guaranteed to always work. It only works if the
subtitle is close enough to the seek target.
.sp
Works with the internal Matroska demuxer only. Always enabled for absolute
and hr\-seeks, and this option changes behavior with relative or imprecise
seeks only.
.sp
You can use the \fB\-\-demuxer\-mkv\-subtitle\-preroll\-secs\fP option to specify
how much data the demuxer should pre\-read at most in order to find subtitle
packets that may overlap. Setting this to 0 will effectively disable this
preroll mechanism. Setting a very large value can make seeking very slow,
and an extremely large value would completely reread the entire file from
start to seek target on every seek \- seeking can become slower towards the
end of the file. The details are messy, and the value is actually rounded
down to the cluster with the previous video keyframe.
.sp
Some files, especially files muxed with newer mkvmerge versions, have
information embedded that can be used to determine what subtitle packets
overlap with a seek target. In these cases, mpv will reduce the amount
of data read to a minimum. (Although it will still read \fIall\fP data between
the cluster that contains the first wanted subtitle packet, and the seek
target.) If the \fBindex\fP choice (which is the default) is specified, then
prerolling will be done only if this information is actually available. If
this method is used, the maximum amount of data to skip can be additionally
controlled by \fB\-\-demuxer\-mkv\-subtitle\-preroll\-secs\-index\fP (it still uses
the value of the option without \fB\-index\fP if that is higher).
.sp
See also \fB\-\-hr\-seek\-demuxer\-offset\fP option. This option can achieve a
similar effect, but only if hr\-seek is active. It works with any demuxer,
but makes seeking much slower, as it has to decode audio and video data
instead of just skipping over it.
.sp
\fB\-\-mkv\-subtitle\-preroll\fP is a deprecated alias.
.TP
.B \fB\-\-demuxer\-mkv\-subtitle\-preroll\-secs=<value>\fP
See \fB\-\-demuxer\-mkv\-subtitle\-preroll\fP\&.
.TP
.B \fB\-\-demuxer\-mkv\-subtitle\-preroll\-secs\-index=<value>\fP
See \fB\-\-demuxer\-mkv\-subtitle\-preroll\fP\&.
.TP
.B \fB\-\-demuxer\-mkv\-probe\-video\-duration=<yes|no|full>\fP
When opening the file, seek to the end of it, and check what timestamp the
last video packet has, and report that as file duration. This is strictly
for compatibility with Haali only. In this mode, it\(aqs possible that opening
will be slower (especially when playing over http), or that behavior with
broken files is much worse. So don\(aqt use this option.
.sp
The \fByes\fP mode merely uses the index and reads a small number of blocks
from the end of the file. The \fBfull\fP mode actually traverses the entire
file and can make a reliable estimate even without an index present (such
as partial files).
.TP
.B \fB\-\-demuxer\-rawaudio\-channels=<value>\fP
Number of channels (or channel layout) if \fB\-\-demuxer=rawaudio\fP is used
(default: stereo).
.TP
.B \fB\-\-demuxer\-rawaudio\-format=<value>\fP
Sample format for \fB\-\-demuxer=rawaudio\fP (default: s16le).
Use \fB\-\-demuxer\-rawaudio\-format=help\fP to get a list of all formats.
.TP
.B \fB\-\-demuxer\-rawaudio\-rate=<value>\fP
Sample rate for \fB\-\-demuxer=rawaudio\fP (default: 44 kHz).
.TP
.B \fB\-\-demuxer\-rawvideo\-fps=<value>\fP
Rate in frames per second for \fB\-\-demuxer=rawvideo\fP (default: 25.0).
.TP
.B \fB\-\-demuxer\-rawvideo\-w=<value>\fP, \fB\-\-demuxer\-rawvideo\-h=<value>\fP
Image dimension in pixels for \fB\-\-demuxer=rawvideo\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
Play a raw YUV sample:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv sample\-720x576.yuv \-\-demuxer=rawvideo \e
\-\-demuxer\-rawvideo\-w=720 \-\-demuxer\-rawvideo\-h=576
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-demuxer\-rawvideo\-format=<value>\fP
Color space (fourcc) in hex or string for \fB\-\-demuxer=rawvideo\fP
(default: \fBYV12\fP).
.TP
.B \fB\-\-demuxer\-rawvideo\-mp\-format=<value>\fP
Color space by internal video format for \fB\-\-demuxer=rawvideo\fP\&. Use
\fB\-\-demuxer\-rawvideo\-mp\-format=help\fP for a list of possible formats.
.TP
.B \fB\-\-demuxer\-rawvideo\-codec=<value>\fP
Set the video codec instead of selecting the rawvideo codec when using
\fB\-\-demuxer=rawvideo\fP\&. This uses the same values as codec names in
\fB\-\-vd\fP (but it does not accept decoder names).
.TP
.B \fB\-\-demuxer\-rawvideo\-size=<value>\fP
Frame size in bytes when using \fB\-\-demuxer=rawvideo\fP\&.
.TP
.B \fB\-\-demuxer\-cue\-codepage=<codepage>\fP
Specify the CUE sheet codepage. (See \fB\-\-sub\-codepage\fP for details.)
.TP
.B \fB\-\-demuxer\-max\-bytes=<bytesize>\fP
This controls how much the demuxer is allowed to buffer ahead. The demuxer
will normally try to read ahead as much as necessary, or as much is
requested with \fB\-\-demuxer\-readahead\-secs\fP\&. The option can be used to
restrict the maximum readahead. This limits excessive readahead in case of
broken files or desynced playback. The demuxer will stop reading additional
packets as soon as one of the limits is reached. (The limits still can be
slightly overstepped due to technical reasons.)
.sp
Set these limits higher if you get a packet queue overflow warning, and
you think normal playback would be possible with a larger packet queue.
.sp
See \fB\-\-list\-options\fP for defaults and value range. \fB<bytesize>\fP options
accept suffixes such as \fBKiB\fP and \fBMiB\fP\&.
.TP
.B \fB\-\-demuxer\-max\-back\-bytes=<bytesize>\fP
This controls how much past data the demuxer is allowed to preserve. This
is useful only if the \fB\-\-demuxer\-seekable\-cache\fP option is enabled.
Unlike the forward cache, there is no control how many seconds are actually
cached \- it will simply use as much memory this option allows. Setting this
option to 0 will strictly disable any back buffer, but this will lead to
the situation that the forward seek range starts after the current playback
position (as it removes past packets that are seek points).
.sp
If the end of the file is reached, the remaining unused forward buffer space
is "donated" to the backbuffer (unless the backbuffer size is set to 0).
This still limits the total cache usage to the sum of the forward and
backward cache, and effectively makes better use of the total allowed memory
budget. (The opposite does not happen: free backward buffer is never
"donated" to the forward buffer.)
.sp
Keep in mind that other buffers in the player (like decoders) will cause the
demuxer to cache "future" frames in the back buffer, which can skew the
impression about how much data the backbuffer contains.
.sp
See \fB\-\-list\-options\fP for defaults and value range.
.TP
.B \fB\-\-demuxer\-seekable\-cache=<yes|no|auto>\fP
This controls whether seeking can use the demuxer cache (default: auto). If
enabled, short seek offsets will not trigger a low level demuxer seek
(which means for example that slow network round trips or FFmpeg seek bugs
can be avoided). If a seek cannot happen within the cached range, a low
level seek will be triggered. Seeking outside of the cache will start a new
cached range, but can discard the old cache range if the demuxer exhibits
certain unsupported behavior.
.sp
Keep in mind that some events can flush the cache or force a low level
seek anyway, such as switching tracks, or attempting to seek before the
start or after the end of the file.
.sp
The special value \fBauto\fP means \fByes\fP in the same situation as
\fB\-\-cache\-secs\fP is used (i.e. when the stream appears to be a network
stream or the stream cache is enabled).
.TP
.B \fB\-\-demuxer\-thread=<yes|no>\fP
Run the demuxer in a separate thread, and let it prefetch a certain amount
of packets (default: yes). Having this enabled leads to smoother playback,
enables features like prefetching, and prevents that stuck network freezes
the player. On the other hand, it can add overhead, or the background
prefetching can hog CPU resources.
.sp
Disabling this option is not recommended. Use it for debugging only.
.TP
.B \fB\-\-demuxer\-termination\-timeout=<seconds>\fP
Number of seconds the player should wait to shutdown the demuxer (default:
0.1). The player will wait up to this much time before it closes the
stream layer forcefully. Forceful closing usually means the network I/O is
given no chance to close its connections gracefully (of course the OS can
still close TCP connections properly), and might result in annoying messages
being logged, and in some cases, confused remote servers.
.sp
This timeout is usually only applied when loading has finished properly. If
loading is aborted by the user, or in some corner cases like removing
external tracks sourced from network during playback, forceful closing is
always used.
.TP
.B \fB\-\-demuxer\-readahead\-secs=<seconds>\fP
If \fB\-\-demuxer\-thread\fP is enabled, this controls how much the demuxer
should buffer ahead in seconds (default: 1). As long as no packet has
a timestamp difference higher than the readahead amount relative to the
last packet returned to the decoder, the demuxer keeps reading.
.sp
Note that the \fB\-\-cache\-secs\fP option will override this value if a cache
is enabled, and the value is larger.
.sp
(This value tends to be fuzzy, because many file formats don\(aqt store linear
timestamps.)
.TP
.B \fB\-\-prefetch\-playlist=<yes|no>\fP
Prefetch next playlist entry while playback of the current entry is ending
(default: no). This merely opens the URL of the next playlist entry as soon
as the current URL is fully read.
.sp
This does \fBnot\fP work with URLs resolved by the \fByoutube\-dl\fP wrapper,
and it won\(aqt.
.sp
This does not affect HLS (\fB\&.m3u8\fP URLs) \- HLS prefetching depends on the
demuxer cache settings and is on by default.
.sp
This can give subtly wrong results if per\-file options are used, or if
options are changed in the time window between prefetching start and next
file played.
.sp
This can occasionally make wrong prefetching decisions. For example, it
can\(aqt predict whether you go backwards in the playlist, and assumes you
won\(aqt edit the playlist.
.sp
Highly experimental.
.TP
.B \fB\-\-force\-seekable=<yes|no>\fP
If the player thinks that the media is not seekable (e.g. playing from a
pipe, or it\(aqs an http stream with a server that doesn\(aqt support range
requests), seeking will be disabled. This option can forcibly enable it.
For seeks within the cache, there\(aqs a good chance of success.
.TP
.B \fB\-\-demuxer\-cache\-wait=<yes|no>\fP
Before starting playback, read data until either the end of the file was
reached, or the demuxer cache has reached maximum capacity. Only once this
is done, playback starts. This intentionally happens before the initial
seek triggered with \fB\-\-start\fP\&. This does not change any runtime behavior
after the initial caching. This option is useless if the file cannot be
cached completely.
.TP
.B \fB\-\-rar\-list\-all\-volumes=<yes|no>\fP
When opening multi\-volume rar files, open all volumes to create a full list
of contained files (default: no). If disabled, only the archive entries
whose headers are located within the first volume are listed (and thus
played when opening a .rar file with mpv). Doing so speeds up opening, and
the typical idiotic use\-case of playing uncompressed multi\-volume rar files
that contain a single media file is made faster.
.sp
Opening is still slow, because for unknown, idiotic, and unnecessary reasons
libarchive opens all volumes anyway when playing the main file, even though
mpv iterated no archive entries yet.
.UNINDENT
.SS Input
.INDENT 0.0
.TP
.B \fB\-\-native\-keyrepeat\fP
Use system settings for keyrepeat delay and rate, instead of
\fB\-\-input\-ar\-delay\fP and \fB\-\-input\-ar\-rate\fP\&. (Whether this applies
depends on the VO backend and how it handles keyboard input. Does not
apply to terminal input.)
.TP
.B \fB\-\-input\-ar\-delay\fP
Delay in milliseconds before we start to autorepeat a key (0 to disable).
.TP
.B \fB\-\-input\-ar\-rate\fP
Number of key presses to generate per second on autorepeat.
.TP
.B \fB\-\-input\-conf=<filename>\fP
Specify input configuration file other than the default location in the mpv
configuration directory (usually \fB~/.config/mpv/input.conf\fP).
.TP
.B \fB\-\-no\-input\-default\-bindings\fP
Disable mpv default (built\-in) key bindings.
.TP
.B \fB\-\-input\-cmdlist\fP
Prints all commands that can be bound to keys.
.TP
.B \fB\-\-input\-doubleclick\-time=<milliseconds>\fP
Time in milliseconds to recognize two consecutive button presses as a
double\-click (default: 300).
.TP
.B \fB\-\-input\-keylist\fP
Prints all keys that can be bound to commands.
.TP
.B \fB\-\-input\-key\-fifo\-size=<2\-65000>\fP
Specify the size of the FIFO that buffers key events (default: 7). If it
is too small, some events may be lost. The main disadvantage of setting it
to a very large value is that if you hold down a key triggering some
particularly slow command then the player may be unresponsive while it
processes all the queued commands.
.TP
.B \fB\-\-input\-test\fP
Input test mode. Instead of executing commands on key presses, mpv
will show the keys and the bound commands on the OSD. Has to be used
with a dummy video, and the normal ways to quit the player will not
work (key bindings that normally quit will be shown on OSD only, just
like any other binding). See \fI\%INPUT.CONF\fP\&.
.TP
.B \fB\-\-input\-file=<filename>\fP
Deprecated. Use \fB\-\-input\-ipc\-server\fP\&.
.sp
Read commands from the given file. Mostly useful with a FIFO. Since
mpv 0.7.0 also understands JSON commands (see \fI\%JSON IPC\fP), but you can\(aqt
get replies or events. Use \fB\-\-input\-ipc\-server\fP for something
bi\-directional. On MS Windows, JSON commands are not available.
.sp
This can also specify a direct file descriptor with \fBfd://N\fP (UNIX only).
In this case, JSON replies will be written if the FD is writable.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
When the given file is a FIFO mpv opens both ends, so you can do several
\fIecho "seek 10" > mp_pipe\fP and the pipe will stay valid.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-input\-terminal\fP, \fB\-\-no\-input\-terminal\fP
\fB\-\-no\-input\-terminal\fP prevents the player from reading key events from
standard input. Useful when reading data from standard input. This is
automatically enabled when \fB\-\fP is found on the command line. There are
situations where you have to set it manually, e.g. if you open
\fB/dev/stdin\fP (or the equivalent on your system), use stdin in a playlist
or intend to read from stdin later on via the loadfile or loadlist input
commands.
.TP
.B \fB\-\-input\-ipc\-server=<filename>\fP
Enable the IPC support and create the listening socket at the given path.
.sp
On Linux and Unix, the given path is a regular filesystem path. On Windows,
named pipes are used, so the path refers to the pipe namespace
(\fB\e\e.\epipe\e<name>\fP). If the \fB\e\e.\epipe\e\fP prefix is missing, mpv will add
it automatically before creating the pipe, so
\fB\-\-input\-ipc\-server=/tmp/mpv\-socket\fP and
\fB\-\-input\-ipc\-server=\e\e.\epipe\etmp\empv\-socket\fP are equivalent for IPC on
Windows.
.sp
See \fI\%JSON IPC\fP for details.
.TP
.B \fB\-\-input\-gamepad=<yes|no>\fP
Enable/disable SDL2 Gamepad support. Disabled by default.
.TP
.B \fB\-\-input\-cursor\fP, \fB\-\-no\-input\-cursor\fP
Permit mpv to receive pointer events reported by the video output
driver. Necessary to use the OSC, or to select the buttons in DVD menus.
Support depends on the VO in use.
.TP
.B \fB\-\-input\-media\-keys=<yes|no>\fP
(OS X and Windows only)
Enable/disable media keys support. Enabled by default (except for libmpv).
.TP
.B \fB\-\-input\-right\-alt\-gr\fP, \fB\-\-no\-input\-right\-alt\-gr\fP
(Cocoa and Windows only)
Use the right Alt key as Alt Gr to produce special characters. If disabled,
count the right Alt as an Alt modifier key. Enabled by default.
.TP
.B \fB\-\-input\-vo\-keyboard=<yes|no>\fP
Disable all keyboard input on for VOs which can\(aqt participate in proper
keyboard input dispatching. May not affect all VOs. Generally useful for
embedding only.
.sp
On X11, a sub\-window with input enabled grabs all keyboard input as long
as it is 1. a child of a focused window, and 2. the mouse is inside of
the sub\-window. It can steal away all keyboard input from the
application embedding the mpv window, and on the other hand, the mpv
window will receive no input if the mouse is outside of the mpv window,
even though mpv has focus. Modern toolkits work around this weird X11
behavior, but naively embedding foreign windows breaks it.
.sp
The only way to handle this reasonably is using the XEmbed protocol, which
was designed to solve these problems. GTK provides \fBGtkSocket\fP, which
supports XEmbed. Qt doesn\(aqt seem to provide anything working in newer
versions.
.sp
If the embedder supports XEmbed, input should work with default settings
and with this option disabled. Note that \fBinput\-default\-bindings\fP is
disabled by default in libmpv as well \- it should be enabled if you want
the mpv default key bindings.
.sp
(This option was renamed from \fB\-\-input\-x11\-keyboard\fP\&.)
.UNINDENT
.SS OSD
.INDENT 0.0
.TP
.B \fB\-\-osc\fP, \fB\-\-no\-osc\fP
Whether to load the on\-screen\-controller (default: yes).
.TP
.B \fB\-\-no\-osd\-bar\fP, \fB\-\-osd\-bar\fP
Disable display of the OSD bar.
.sp
You can configure this on a per\-command basis in input.conf using \fBosd\-\fP
prefixes, see \fBInput Command Prefixes\fP\&. If you want to disable the OSD
completely, use \fB\-\-osd\-level=0\fP\&.
.TP
.B \fB\-\-osd\-on\-seek=<no,bar,msg,msg\-bar>\fP
Set what is displayed on the OSD during seeks. The default is \fBbar\fP\&.
.sp
You can configure this on a per\-command basis in input.conf using \fBosd\-\fP
prefixes, see \fBInput Command Prefixes\fP\&.
.TP
.B \fB\-\-osd\-duration=<time>\fP
Set the duration of the OSD messages in ms (default: 1000).
.TP
.B \fB\-\-osd\-font=<name>\fP
Specify font to use for OSD. The default is \fBsans\-serif\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-osd\-font=\(aqBitstream Vera Sans\(aq\fP
.IP \(bu 2
\fB\-\-osd\-font=\(aqComic Sans MS\(aq\fP
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-osd\-font\-size=<size>\fP
Specify the OSD font size. See \fB\-\-sub\-font\-size\fP for details.
.sp
Default: 55.
.TP
.B \fB\-\-osd\-msg1=<string>\fP
Show this string as message on OSD with OSD level 1 (visible by default).
The message will be visible by default, and as long as no other message
covers it, and the OSD level isn\(aqt changed (see \fB\-\-osd\-level\fP).
Expands properties; see \fI\%Property Expansion\fP\&.
.TP
.B \fB\-\-osd\-msg2=<string>\fP
Similar to \fB\-\-osd\-msg1\fP, but for OSD level 2. If this is an empty string
(default), then the playback time is shown.
.TP
.B \fB\-\-osd\-msg3=<string>\fP
Similar to \fB\-\-osd\-msg1\fP, but for OSD level 3. If this is an empty string
(default), then the playback time, duration, and some more information is
shown.
.sp
This is used for the \fBshow\-progress\fP command (by default mapped to \fBP\fP),
and when seeking if enabled with \fB\-\-osd\-on\-seek\fP or by \fBosd\-\fP prefixes
in input.conf (see \fBInput Command Prefixes\fP).
.sp
\fB\-\-osd\-status\-msg\fP is a legacy equivalent (but with a minor difference).
.TP
.B \fB\-\-osd\-status\-msg=<string>\fP
Show a custom string during playback instead of the standard status text.
This overrides the status text used for \fB\-\-osd\-level=3\fP, when using the
\fBshow\-progress\fP command (by default mapped to \fBP\fP), and when seeking if
enabled with \fB\-\-osd\-on\-seek\fP or \fBosd\-\fP prefixes in input.conf (see
\fBInput Command Prefixes\fP). Expands properties. See \fI\%Property Expansion\fP\&.
.sp
This option has been replaced with \fB\-\-osd\-msg3\fP\&. The only difference is
that this option implicitly includes \fB${osd\-sym\-cc}\fP\&. This option is
ignored if \fB\-\-osd\-msg3\fP is not empty.
.TP
.B \fB\-\-osd\-playing\-msg=<string>\fP
Show a message on OSD when playback starts. The string is expanded for
properties, e.g. \fB\-\-osd\-playing\-msg=\(aqfile: ${filename}\(aq\fP will show the
message \fBfile:\fP followed by a space and the currently played filename.
.sp
See \fI\%Property Expansion\fP\&.
.TP
.B \fB\-\-osd\-bar\-align\-x=<\-1\-1>\fP
Position of the OSD bar. \-1 is far left, 0 is centered, 1 is far right.
Fractional values (like 0.5) are allowed.
.TP
.B \fB\-\-osd\-bar\-align\-y=<\-1\-1>\fP
Position of the OSD bar. \-1 is top, 0 is centered, 1 is bottom.
Fractional values (like 0.5) are allowed.
.TP
.B \fB\-\-osd\-bar\-w=<1\-100>\fP
Width of the OSD bar, in percentage of the screen width (default: 75).
A value of 50 means the bar is half the screen wide.
.TP
.B \fB\-\-osd\-bar\-h=<0.1\-50>\fP
Height of the OSD bar, in percentage of the screen height (default: 3.125).
.TP
.B \fB\-\-osd\-back\-color=<color>\fP
See \fB\-\-osd\-color\fP\&. Color used for OSD text background.
.TP
.B \fB\-\-osd\-blur=<0..20.0>\fP
Gaussian blur factor. 0 means no blur applied (default).
.TP
.B \fB\-\-osd\-bold=<yes|no>\fP
Format text on bold.
.TP
.B \fB\-\-osd\-italic=<yes|no>\fP
Format text on italic.
.TP
.B \fB\-\-osd\-border\-color=<color>\fP
See \fB\-\-osd\-color\fP\&. Color used for the OSD font border.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
ignored when \fB\-\-osd\-back\-color\fP is
specified (or more exactly: when that option is not set to completely
transparent).
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-osd\-border\-size=<size>\fP
Size of the OSD font border in scaled pixels (see \fB\-\-sub\-font\-size\fP
for details). A value of 0 disables borders.
.sp
Default: 3.
.TP
.B \fB\-\-osd\-color=<color>\fP
Specify the color used for OSD.
See \fB\-\-sub\-color\fP for details.
.TP
.B \fB\-\-osd\-fractions\fP
Show OSD times with fractions of seconds (in millisecond precision). Useful
to see the exact timestamp of a video frame.
.TP
.B \fB\-\-osd\-level=<0\-3>\fP
Specifies which mode the OSD should start in.
.INDENT 7.0
.TP
.B 0
OSD completely disabled (subtitles only)
.TP
.B 1
enabled (shows up only on user interaction)
.TP
.B 2
enabled + current time visible by default
.TP
.B 3
enabled + \fB\-\-osd\-status\-msg\fP (current time and status by default)
.UNINDENT
.TP
.B \fB\-\-osd\-margin\-x=<size>\fP
Left and right screen margin for the OSD in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details).
.sp
This option specifies the distance of the OSD to the left, as well as at
which distance from the right border long OSD text will be broken.
.sp
Default: 25.
.TP
.B \fB\-\-osd\-margin\-y=<size>\fP
Top and bottom screen margin for the OSD in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details).
.sp
This option specifies the vertical margins of the OSD.
.sp
Default: 22.
.TP
.B \fB\-\-osd\-align\-x=<left|center|right>\fP
Control to which corner of the screen OSD should be
aligned to (default: \fBleft\fP).
.TP
.B \fB\-\-osd\-align\-y=<top|center|bottom>\fP
Vertical position (default: \fBtop\fP).
Details see \fB\-\-osd\-align\-x\fP\&.
.TP
.B \fB\-\-osd\-scale=<factor>\fP
OSD font size multiplier, multiplied with \fB\-\-osd\-font\-size\fP value.
.TP
.B \fB\-\-osd\-scale\-by\-window=<yes|no>\fP
Whether to scale the OSD with the window size (default: yes). If this is
disabled, \fB\-\-osd\-font\-size\fP and other OSD options that use scaled pixels
are always in actual pixels. The effect is that changing the window size
won\(aqt change the OSD font size.
.TP
.B \fB\-\-osd\-shadow\-color=<color>\fP
See \fB\-\-sub\-color\fP\&. Color used for OSD shadow.
.TP
.B \fB\-\-osd\-shadow\-offset=<size>\fP
Displacement of the OSD shadow in scaled pixels (see
\fB\-\-sub\-font\-size\fP for details). A value of 0 disables shadows.
.sp
Default: 0.
.TP
.B \fB\-\-osd\-spacing=<size>\fP
Horizontal OSD/sub font spacing in scaled pixels (see \fB\-\-sub\-font\-size\fP
for details). This value is added to the normal letter spacing. Negative
values are allowed.
.sp
Default: 0.
.TP
.B \fB\-\-video\-osd=<yes|no>\fP
Enabled OSD rendering on the video window (default: yes). This can be used
in situations where terminal OSD is preferred. If you just want to disable
all OSD rendering, use \fB\-\-osd\-level=0\fP\&.
.sp
It does not affect subtitles or overlays created by scripts (in particular,
the OSC needs to be disabled with \fB\-\-no\-osc\fP).
.sp
This option is somewhat experimental and could be replaced by another
mechanism in the future.
.TP
.B \fB\-\-osd\-font\-provider=<...>\fP
See \fB\-\-sub\-font\-provider\fP for details and accepted values. Note that
unlike subtitles, OSD never uses embedded fonts from media files.
.UNINDENT
.SS Screenshot
.INDENT 0.0
.TP
.B \fB\-\-screenshot\-format=<type>\fP
Set the image file type used for saving screenshots.
.sp
Available choices:
.INDENT 7.0
.TP
.B png
PNG
.TP
.B jpg
JPEG (default)
.TP
.B jpeg
JPEG (alias for jpg)
.TP
.B webp
WebP
.UNINDENT
.TP
.B \fB\-\-screenshot\-tag\-colorspace=<yes|no>\fP
Tag screenshots with the appropriate colorspace.
.sp
Note that not all formats are supported.
.sp
Default: \fBno\fP\&.
.TP
.B \fB\-\-screenshot\-high\-bit\-depth=<yes|no>\fP
If possible, write screenshots with a bit depth similar to the source
video (default: yes). This is interesting in particular for PNG, as this
sometimes triggers writing 16 bit PNGs with huge file sizes. This will also
include an unused alpha channel in the resulting files if 16 bit is used.
.TP
.B \fB\-\-screenshot\-template=<template>\fP
Specify the filename template used to save screenshots. The template
specifies the filename without file extension, and can contain format
specifiers, which will be substituted when taking a screenshot.
By default, the template is \fBmpv\-shot%n\fP, which results in filenames like
\fBmpv\-shot0012.png\fP for example.
.sp
The template can start with a relative or absolute path, in order to
specify a directory location where screenshots should be saved.
.sp
If the final screenshot filename points to an already existing file, the
file will not be overwritten. The screenshot will either not be saved, or if
the template contains \fB%n\fP, saved using different, newly generated
filename.
.sp
Allowed format specifiers:
.INDENT 7.0
.TP
.B \fB%[#][0X]n\fP
A sequence number, padded with zeros to length X (default: 04). E.g.
passing the format \fB%04n\fP will yield \fB0012\fP on the 12th screenshot.
The number is incremented every time a screenshot is taken or if the
file already exists. The length \fBX\fP must be in the range 0\-9. With
the optional # sign, mpv will use the lowest available number. For
example, if you take three screenshots\-\-0001, 0002, 0003\-\-and delete
the first two, the next two screenshots will not be 0004 and 0005, but
0001 and 0002 again.
.TP
.B \fB%f\fP
Filename of the currently played video.
.TP
.B \fB%F\fP
Same as \fB%f\fP, but strip the file extension, including the dot.
.TP
.B \fB%x\fP
Directory path of the currently played video. If the video is not on
the filesystem (but e.g. \fBhttp://\fP), this expand to an empty string.
.TP
.B \fB%X{fallback}\fP
Same as \fB%x\fP, but if the video file is not on the filesystem, return
the fallback string inside the \fB{...}\fP\&.
.TP
.B \fB%p\fP
Current playback time, in the same format as used in the OSD. The
result is a string of the form "HH:MM:SS". For example, if the video is
at the time position 5 minutes and 34 seconds, \fB%p\fP will be replaced
with "00:05:34".
.TP
.B \fB%P\fP
Similar to \fB%p\fP, but extended with the playback time in milliseconds.
It is formatted as "HH:MM:SS.mmm", with "mmm" being the millisecond
part of the playback time.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This is a simple way for getting unique per\-frame timestamps. (Frame
numbers would be more intuitive, but are not easily implementable
because container formats usually use time stamps for identifying
frames.)
.UNINDENT
.UNINDENT
.TP
.B \fB%wX\fP
Specify the current playback time using the format string \fBX\fP\&.
\fB%p\fP is like \fB%wH:%wM:%wS\fP, and \fB%P\fP is like \fB%wH:%wM:%wS.%wT\fP\&.
.INDENT 7.0
.TP
.B Valid format specifiers:
.INDENT 7.0
.TP
.B \fB%wH\fP
hour (padded with 0 to two digits)
.TP
.B \fB%wh\fP
hour (not padded)
.TP
.B \fB%wM\fP
minutes (00\-59)
.TP
.B \fB%wm\fP
total minutes (includes hours, unlike \fB%wM\fP)
.TP
.B \fB%wS\fP
seconds (00\-59)
.TP
.B \fB%ws\fP
total seconds (includes hours and minutes)
.TP
.B \fB%wf\fP
like \fB%ws\fP, but as float
.TP
.B \fB%wT\fP
milliseconds (000\-999)
.UNINDENT
.UNINDENT
.TP
.B \fB%tX\fP
Specify the current local date/time using the format \fBX\fP\&. This format
specifier uses the UNIX \fBstrftime()\fP function internally, and inserts
the result of passing "%X" to \fBstrftime\fP\&. For example, \fB%tm\fP will
insert the number of the current month as number. You have to use
multiple \fB%tX\fP specifiers to build a full date/time string.
.TP
.B \fB%{prop[:fallback text]}\fP
Insert the value of the input property \(aqprop\(aq. E.g. \fB%{filename}\fP is
the same as \fB%f\fP\&. If the property does not exist or is not available,
an error text is inserted, unless a fallback is specified.
.TP
.B \fB%%\fP
Replaced with the \fB%\fP character itself.
.UNINDENT
.TP
.B \fB\-\-screenshot\-directory=<path>\fP
Store screenshots in this directory. This path is joined with the filename
generated by \fB\-\-screenshot\-template\fP\&. If the template filename is already
absolute, the directory is ignored.
.sp
If the directory does not exist, it is created on the first screenshot. If
it is not a directory, an error is generated when trying to write a
screenshot.
.sp
This option is not set by default, and thus will write screenshots to the
directory from which mpv was started. In pseudo\-gui mode
(see \fI\%PSEUDO GUI MODE\fP), this is set to the desktop.
.TP
.B \fB\-\-screenshot\-jpeg\-quality=<0\-100>\fP
Set the JPEG quality level. Higher means better quality. The default is 90.
.TP
.B \fB\-\-screenshot\-jpeg\-source\-chroma=<yes|no>\fP
Write JPEG files with the same chroma subsampling as the video
(default: yes). If disabled, the libjpeg default is used.
.TP
.B \fB\-\-screenshot\-png\-compression=<0\-9>\fP
Set the PNG compression level. Higher means better compression. This will
affect the file size of the written screenshot file and the time it takes
to write a screenshot. Too high compression might occupy enough CPU time to
interrupt playback. The default is 7.
.TP
.B \fB\-\-screenshot\-png\-filter=<0\-5>\fP
Set the filter applied prior to PNG compression. 0 is none, 1 is "sub", 2 is
"up", 3 is "average", 4 is "Paeth", and 5 is "mixed". This affects the level
of compression that can be achieved. For most images, "mixed" achieves the
best compression ratio, hence it is the default.
.TP
.B \fB\-\-screenshot\-webp\-lossless=<yes|no>\fP
Write lossless WebP files. \fB\-\-screenshot\-webp\-quality\fP is ignored if this
is set. The default is no.
.TP
.B \fB\-\-screenshot\-webp\-quality=<0\-100>\fP
Set the WebP quality level. Higher means better quality. The default is 75.
.TP
.B \fB\-\-screenshot\-webp\-compression=<0\-6>\fP
Set the WebP compression level. Higher means better compression, but takes
more CPU time. Note that this also affects the screenshot quality when used
with lossy WebP files. The default is 4.
.UNINDENT
.SS Software Scaler
.INDENT 0.0
.TP
.B \fB\-\-sws\-scaler=<name>\fP
Specify the software scaler algorithm to be used with \fB\-\-vf=scale\fP\&. This
also affects video output drivers which lack hardware acceleration,
e.g. \fBx11\fP\&. See also \fB\-\-vf=scale\fP\&.
.sp
To get a list of available scalers, run \fB\-\-sws\-scaler=help\fP\&.
.sp
Default: \fBbicubic\fP\&.
.TP
.B \fB\-\-sws\-lgb=<0\-100>\fP
Software scaler Gaussian blur filter (luma). See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-cgb=<0\-100>\fP
Software scaler Gaussian blur filter (chroma). See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-ls=<\-100\-100>\fP
Software scaler sharpen filter (luma). See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-cs=<\-100\-100>\fP
Software scaler sharpen filter (chroma). See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-chs=<h>\fP
Software scaler chroma horizontal shifting. See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-cvs=<v>\fP
Software scaler chroma vertical shifting. See \fB\-\-sws\-scaler\fP\&.
.TP
.B \fB\-\-sws\-bitexact=<yes|no>\fP
Unknown functionality (default: no). Consult libswscale source code. The
primary purpose of this, as far as libswscale API goes), is to produce
exactly the same output for the same input on all platforms (output has the
same "bits" everywhere, thus "bitexact"). Typically disables optimizations.
.TP
.B \fB\-\-sws\-fast=<yes|no>\fP
Allow optimizations that help with performance, but reduce quality (default:
no).
.sp
VOs like \fBdrm\fP and \fBx11\fP will benefit a lot from using \fB\-\-sws\-fast\fP\&.
You may need to set other options, like \fB\-\-sws\-scaler\fP\&. The builtin
\fBsws\-fast\fP profile sets this option and some others to gain performance
for reduced quality.
.TP
.B \fB\-\-sws\-allow\-zimg=<yes|no>\fP
Allow using zimg (if the component using the internal swscale wrapper
explicitly allows so). In this case, zimg \fImay\fP be used, if the internal
zimg wrapper supports the input and output formats. It will silently
fall back to libswscale if one of these conditions does not apply.
.sp
If zimg is used, the other \fB\-\-sws\-\fP options are ignored, and the
\fB\-\-zimg\-\fP options are used instead.
.sp
If the internal component using the swscale wrapper hooks up logging
correctly, a verbose priority log message will indicate whether zimg is
being used.
.sp
Most things which need software conversion can make use of this.
.TP
.B \fB\-\-zimg\-scaler=<point|bilinear|bicubic|spline16|spline36|lanczos>\fP
Zimg luma scaler to use (default: lanczos).
.TP
.B \fB\-\-zimg\-scaler\-param\-a=<default|float>\fP, \fB\-\-zimg\-scaler\-param\-b=<default|float>\fP
Set scaler parameters. By default, these are set to the special string
\fBdefault\fP, which maps to a scaler\-specific default value. Ignored if the
scaler is not tunable.
.INDENT 7.0
.TP
.B \fBlanczos\fP
\fB\-\-zimg\-scaler\-param\-a\fP is the number of taps.
.TP
.B \fBbicubic\fP
a and b are the bicubic b and c parameters.
.UNINDENT
.TP
.B \fB\-\-zimg\-scaler\-chroma=...\fP
Same as \fB\-\-zimg\-scaler\fP, for for chroma interpolation (default: bilinear).
.TP
.B \fB\-\-zimg\-scaler\-chroma\-param\-a\fP, \fB\-\-zimg\-scaler\-chroma\-param\-b\fP
Same as \fB\-\-zimg\-scaler\-param\-a\fP / \fB\-\-zimg\-scaler\-param\-b\fP, for chroma.
.TP
.B \fB\-\-zimg\-dither=<no|ordered|random|error\-diffusion>\fP
Dithering (default: random).
.TP
.B \fB\-\-zimg\-fast=<yes|no>\fP
Allow optimizations that help with performance, but reduce quality (default:
yes). Currently, this may simplify gamma conversion operations.
.UNINDENT
.SS Audio Resampler
.sp
This controls the default options of any resampling done by mpv (but not within
libavfilter, within the system audio API resampler, or any other places).
.sp
It also sets the defaults for the \fBlavrresample\fP audio filter.
.INDENT 0.0
.TP
.B \fB\-\-audio\-resample\-filter\-size=<length>\fP
Length of the filter with respect to the lower sampling rate. (default:
16)
.TP
.B \fB\-\-audio\-resample\-phase\-shift=<count>\fP
Log2 of the number of polyphase entries. (..., 10\->1024, 11\->2048,
12\->4096, ...) (default: 10\->1024)
.TP
.B \fB\-\-audio\-resample\-cutoff=<cutoff>\fP
Cutoff frequency (0.0\-1.0), default set depending upon filter length.
.TP
.B \fB\-\-audio\-resample\-linear=<yes|no>\fP
If set then filters will be linearly interpolated between polyphase
entries. (default: no)
.TP
.B \fB\-\-audio\-normalize\-downmix=<yes|no>\fP
Enable/disable normalization if surround audio is downmixed to stereo
(default: no). If this is disabled, downmix can cause clipping. If it\(aqs
enabled, the output might be too quiet. It depends on the source audio.
.sp
Technically, this changes the \fBnormalize\fP suboption of the
\fBlavrresample\fP audio filter, which performs the downmixing.
.sp
If downmix happens outside of mpv for some reason, or in the decoder
(decoder downmixing), or in the audio output (system mixer), this has no
effect.
.TP
.B \fB\-\-audio\-resample\-max\-output\-size=<length>\fP
Limit maximum size of audio frames filtered at once, in ms (default: 40).
The output size size is limited in order to make resample speed changes
react faster. This is necessary especially if decoders or filters output
very large frame sizes (like some lossless codecs or some DRC filters).
This option does not affect the resampling algorithm in any way.
.sp
For testing/debugging only. Can be removed or changed any time.
.TP
.B \fB\-\-audio\-swresample\-o=<string>\fP
Set AVOptions on the SwrContext or AVAudioResampleContext. These should
be documented by FFmpeg or Libav.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.UNINDENT
.SS Terminal
.INDENT 0.0
.TP
.B \fB\-\-quiet\fP
Make console output less verbose; in particular, prevents the status line
(i.e. AV: 3.4 (00:00:03.37) / 5320.6 ...) from being displayed.
Particularly useful on slow terminals or broken ones which do not properly
handle carriage return (i.e. \fB\er\fP).
.sp
See also: \fB\-\-really\-quiet\fP and \fB\-\-msg\-level\fP\&.
.TP
.B \fB\-\-really\-quiet\fP
Display even less output and status messages than with \fB\-\-quiet\fP\&.
.TP
.B \fB\-\-no\-terminal\fP, \fB\-\-terminal\fP
Disable any use of the terminal and stdin/stdout/stderr. This completely
silences any message output.
.sp
Unlike \fB\-\-really\-quiet\fP, this disables input and terminal initialization
as well.
.TP
.B \fB\-\-no\-msg\-color\fP
Disable colorful console output on terminals.
.TP
.B \fB\-\-msg\-level=<module1=level1,module2=level2,...>\fP
Control verbosity directly for each module. The \fBall\fP module changes the
verbosity of all the modules. The verbosity changes from this option are
applied in order from left to right, and each item can override a previous
one.
.sp
Run mpv with \fB\-\-msg\-level=all=trace\fP to see all messages mpv outputs. You
can use the module names printed in the output (prefixed to each line in
\fB[...]\fP) to limit the output to interesting modules.
.sp
This also affects \fB\-\-log\-file\fP, and in certain cases libmpv API logging.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Some messages are printed before the command line is parsed and are
therefore not affected by \fB\-\-msg\-level\fP\&. To control these messages,
you have to use the \fBMPV_VERBOSE\fP environment variable; see
\fI\%ENVIRONMENT VARIABLES\fP for details.
.UNINDENT
.UNINDENT
.sp
Available levels:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B no
complete silence
.TP
.B fatal
fatal messages only
.TP
.B error
error messages
.TP
.B warn
warning messages
.TP
.B info
informational messages
.TP
.B status
status messages (default)
.TP
.B v
verbose messages
.TP
.B debug
debug messages
.TP
.B trace
very noisy debug messages
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-msg\-level=ao/sndio=no
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Completely silences the output of ao_sndio, which uses the log
prefix \fB[ao/sndio]\fP\&.
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-msg\-level=all=warn,ao/alsa=error
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Only show warnings or worse, and let the ao_alsa output show errors
only.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-term\-osd=<auto|no|force>\fP
Control whether OSD messages are shown on the console when no video output
is available (default: auto).
.INDENT 7.0
.TP
.B auto
use terminal OSD if no video output active
.TP
.B no
disable terminal OSD
.TP
.B force
use terminal OSD even if video output active
.UNINDENT
.sp
The \fBauto\fP mode also enables terminal OSD if \fB\-\-video\-osd=no\fP was set.
.TP
.B \fB\-\-term\-osd\-bar\fP, \fB\-\-no\-term\-osd\-bar\fP
Enable printing a progress bar under the status line on the terminal.
(Disabled by default.)
.TP
.B \fB\-\-term\-osd\-bar\-chars=<string>\fP
Customize the \fB\-\-term\-osd\-bar\fP feature. The string is expected to
consist of 5 characters (start, left space, position indicator,
right space, end). You can use Unicode characters, but note that double\-
width characters will not be treated correctly.
.sp
Default: \fB[\-+\-]\fP\&.
.TP
.B \fB\-\-term\-playing\-msg=<string>\fP
Print out a string after starting playback. The string is expanded for
properties, e.g. \fB\-\-term\-playing\-msg=\(aqfile: ${filename}\(aq\fP will print the string
\fBfile:\fP followed by a space and the currently played filename.
.sp
See \fI\%Property Expansion\fP\&.
.TP
.B \fB\-\-term\-status\-msg=<string>\fP
Print out a custom string during playback instead of the standard status
line. Expands properties. See \fI\%Property Expansion\fP\&.
.TP
.B \fB\-\-msg\-module\fP
Prepend module name to each console message.
.TP
.B \fB\-\-msg\-time\fP
Prepend timing information to each console message.
.UNINDENT
.SS Cache
.INDENT 0.0
.TP
.B \fB\-\-cache=<yes|no|auto>\fP
Decide whether to use network cache settings (default: auto).
.sp
If enabled, use up to \fB\-\-cache\-secs\fP for the cache size (but still limited
to \fB\-\-demuxer\-max\-bytes\fP). \fB\-\-demuxer\-seekable\-cache=auto\fP behaves as if
it was set to \fByes\fP\&. If disabled, \fB\-\-cache\-pause\fP and related are
implicitly disabled.
.sp
The \fBauto\fP choice enables this depending on whether the stream is thought
to involve network accesses or other slow media (this is an imperfect
heuristic).
.sp
Before mpv 0.30.0, this used to accept a number, which specified the size
of the cache in kilobytes. Use e.g. \fB\-\-cache \-\-demuxer\-max\-bytes=123k\fP
instead.
.TP
.B \fB\-\-no\-cache\fP
Turn off input stream caching. See \fB\-\-cache\fP\&.
.TP
.B \fB\-\-cache\-secs=<seconds>\fP
How many seconds of audio/video to prefetch if the cache is active. This
overrides the \fB\-\-demuxer\-readahead\-secs\fP option if and only if the cache
is enabled and the value is larger. The default value is set to something
very high, so the actually achieved readahead will usually be limited by
the value of the \fB\-\-demuxer\-max\-bytes\fP option. Setting this option is
usually only useful for limiting readahead.
.TP
.B \fB\-\-cache\-on\-disk=<yes|no>\fP
Write packet data to a temporary file, instead of keeping them in memory.
This makes sense only with \fB\-\-cache\fP\&. If the normal cache is disabled,
this option is ignored.
.sp
You need to set \fB\-\-cache\-dir\fP to use this.
.sp
The cache file is append\-only. Even if the player appears to prune data, the
file space freed by it is not reused. The cache file is deleted when
playback is closed.
.sp
Note that packet metadata is still kept in memory. \fB\-\-demuxer\-max\-bytes\fP
and related options are applied to metadata \fIonly\fP\&. The size of this
metadata  varies, but 50 MB per hour of media is typical. The cache
statistics will report this metadats size, instead of the size of the cache
file. If the metadata hits the size limits, the metadata is pruned (but not
the cache file).
.sp
When the media is closed, the cache file is deleted. A cache file is
generally worthless after the media is closed, and it\(aqs hard to retrieve
any media data from it (it\(aqs not supported by design).
.sp
If the option is enabled at runtime, the cache file is created, but old data
will remain in the memory cache. If the option is disabled at runtime, old
data remains in the disk cache, and the cache file is not closed until the
media is closed. If the option is disabled and enabled again, it will
continue to use the cache file that was opened first.
.TP
.B \fB\-\-cache\-dir=<path>\fP
Directory where to create temporary files (default: none).
.sp
Currently, this is used for \fB\-\-cache\-on\-disk\fP only.
.TP
.B \fB\-\-cache\-pause=<yes|no>\fP
Whether the player should automatically pause when the cache runs out of
data and stalls decoding/playback (default: yes). If enabled, it will
pause and unpause once more data is available, aka "buffering".
.TP
.B \fB\-\-cache\-pause\-wait=<seconds>\fP
Number of seconds the packet cache should have buffered before starting
playback again if "buffering" was entered (default: 1). This can be used
to control how long the player rebuffers if \fB\-\-cache\-pause\fP is enabled,
and the demuxer underruns. If the given time is higher than the maximum
set with \fB\-\-cache\-secs\fP or  \fB\-\-demuxer\-readahead\-secs\fP, or prefetching
ends before that for some other reason (like file end or maximum configured
cache size reached), playback resumes earlier.
.TP
.B \fB\-\-cache\-pause\-initial=<yes|no>\fP
Enter "buffering" mode before starting playback (default: no). This can be
used to ensure playback starts smoothly, in exchange for waiting some time
to prefetch network data (as controlled by \fB\-\-cache\-pause\-wait\fP). For
example, some common behavior is that playback starts, but network caches
immediately underrun when trying to decode more data as playback progresses.
.sp
Another thing that can happen is that the network prefetching is so CPU
demanding (due to demuxing in the background) that playback drops frames
at first. In these cases, it helps enabling this option, and setting
\fB\-\-cache\-secs\fP and \fB\-\-cache\-pause\-wait\fP to roughly the same value.
.sp
This option also triggers when playback is restarted after seeking.
.TP
.B \fB\-\-cache\-unlink\-files=<immediate|whendone|no>\fP
Whether or when to unlink cache files (default: immediate). This affects
cache files which are inherently temporary, and which make no sense to
remain on disk after the player terminates. This is a debugging option.
.INDENT 7.0
.TP
.B \fBimmediate\fP
Unlink cache file after they were created. The cache files won\(aqt be
visible anymore, even though they\(aqre in use. This ensures they are
guaranteed to be removed from disk when the player terminates, even if
it crashes.
.TP
.B \fBwhendone\fP
Delete cache files after they are closed.
.TP
.B \fBno\fP
Don\(aqt delete cache files. They will consume disk space without having a
use.
.UNINDENT
.sp
Currently, this is used for \fB\-\-cache\-on\-disk\fP only.
.TP
.B \fB\-\-stream\-buffer\-size=<bytesize>\fP
Size of the low level stream byte buffer (default: 128KB). This is used as
buffer between demuxer and low level I/O (e.g. sockets). Generally, this
can be very small, and the main purpose is similar to the internal buffer
FILE in the C standard library will have.
.sp
Half of the buffer is always used for guaranteed seek back, which is
important for unseekable input.
.sp
There are known cases where this can help performance to set a large buffer:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.IP 1. 3
mp4 files. libavformat may trigger many small seeks in both
directions, depending on how the file was muxed.
.IP 2. 3
Certain network filesystems, which do not have a cache, and where
small reads can be inefficient.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
In other cases, setting this to a large value can reduce performance.
.sp
Usually, read accesses are at half the buffer size, but it may happen that
accesses are done alternating with smaller and larger sizes (this is due to
the internal ring buffer wrap\-around).
.sp
See \fB\-\-list\-options\fP for defaults and value range. \fB<bytesize>\fP options
accept suffixes such as \fBKiB\fP and \fBMiB\fP\&.
.UNINDENT
.SS Network
.INDENT 0.0
.TP
.B \fB\-\-user\-agent=<string>\fP
Use \fB<string>\fP as user agent for HTTP streaming.
.TP
.B \fB\-\-cookies\fP, \fB\-\-no\-cookies\fP
Support cookies when making HTTP requests. Disabled by default.
.TP
.B \fB\-\-cookies\-file=<filename>\fP
Read HTTP cookies from <filename>. The file is assumed to be in Netscape
format.
.TP
.B \fB\-\-http\-header\-fields=<field1,field2>\fP
Set custom HTTP fields when accessing HTTP stream.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-http\-header\-fields=\(aqField1: value1\(aq,\(aqField2: value2\(aq \e
http://localhost:1234
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Will generate HTTP request:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
GET / HTTP/1.0
Host: localhost:1234
User\-Agent: MPlayer
Icy\-MetaData: 1
Field1: value1
Field2: value2
Connection: close
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-http\-proxy=<proxy>\fP
URL of the HTTP/HTTPS proxy. If this is set, the \fBhttp_proxy\fP environment
is ignored. The \fBno_proxy\fP environment variable is still respected. This
option is silently ignored if it does not start with \fBhttp://\fP\&. Proxies
are not used for https URLs. Setting this option does not try to make the
ytdl script use the proxy.
.TP
.B \fB\-\-tls\-ca\-file=<filename>\fP
Certificate authority database file for use with TLS. (Silently fails with
older FFmpeg or Libav versions.)
.TP
.B \fB\-\-tls\-verify\fP
Verify peer certificates when using TLS (e.g. with \fBhttps://...\fP).
(Silently fails with older FFmpeg or Libav versions.)
.TP
.B \fB\-\-tls\-cert\-file\fP
A file containing a certificate to use in the handshake with the
peer.
.TP
.B \fB\-\-tls\-key\-file\fP
A file containing the private key for the certificate.
.TP
.B \fB\-\-referrer=<string>\fP
Specify a referrer path or URL for HTTP requests.
.TP
.B \fB\-\-network\-timeout=<seconds>\fP
Specify the network timeout in seconds (default: 60 seconds). This affects
at least HTTP. The special value 0 uses the FFmpeg/Libav defaults. If a
protocol is used which does not support timeouts, this option is silently
ignored.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This breaks the RTSP protocol, because of inconsistent FFmpeg API
regarding its internal timeout option. Not only does the RTSP timeout
option accept different units (seconds instead of microseconds, causing
mpv to pass it huge values), it will also overflow FFmpeg internal
calculations. The worst is that merely setting the option will put RTSP
into listening mode, which breaks any client uses. At time of this
writing, the fix was not made effective yet. For this reason, this
option is ignored (or should be ignored) on RTSP URLs. You can still
set the timeout option directly with \fB\-\-demuxer\-lavf\-o\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-rtsp\-transport=<lavf|udp|tcp|http>\fP
Select RTSP transport method (default: tcp). This selects the underlying
network transport when playing \fBrtsp://...\fP URLs. The value \fBlavf\fP
leaves the decision to libavformat.
.TP
.B \fB\-\-hls\-bitrate=<no|min|max|<rate>>\fP
If HLS streams are played, this option controls what streams are selected
by default. The option allows the following parameters:
.INDENT 7.0
.TP
.B no
Don\(aqt do anything special. Typically, this will simply pick the
first audio/video streams it can find.
.TP
.B min
Pick the streams with the lowest bitrate.
.TP
.B max
Same, but highest bitrate. (Default.)
.UNINDENT
.sp
Additionally, if the option is a number, the stream with the highest rate
equal or below the option value is selected.
.sp
The bitrate as used is sent by the server, and there\(aqs no guarantee it\(aqs
actually meaningful.
.UNINDENT
.SS DVB
.INDENT 0.0
.TP
.B \fB\-\-dvbin\-prog=<string>\fP
This defines the program to tune to. Usually, you may specify this
by using a stream URI like \fB"dvb://ZDF HD"\fP, but you can tune to a
different channel by writing to this property at runtime.
Also see \fBdvbin\-channel\-switch\-offset\fP for more useful channel
switching functionality.
.TP
.B \fB\-\-dvbin\-card=<0\-15>\fP
Specifies using card number 0\-15 (default: 0).
.TP
.B \fB\-\-dvbin\-file=<filename>\fP
Instructs mpv to read the channels list from \fB<filename>\fP\&. The default is
in the mpv configuration directory (usually \fB~/.config/mpv\fP) with the
filename \fBchannels.conf.{sat,ter,cbl,atsc}\fP (based on your card type) or
\fBchannels.conf\fP as a last resort.
For DVB\-S/2 cards, a VDR 1.7.x format channel list is recommended
as it allows tuning to DVB\-S2 channels, enabling subtitles and
decoding the PMT (which largely improves the demuxing).
Classic mplayer format channel lists are still supported (without
these improvements), and for other card types, only limited VDR
format channel list support is implemented (patches welcome).
For channels with dynamic PID switching or incomplete
\fBchannels.conf\fP, \fB\-\-dvbin\-full\-transponder\fP or the magic PID
\fB8192\fP are recommended.
.TP
.B \fB\-\-dvbin\-timeout=<1\-30>\fP
Maximum number of seconds to wait when trying to tune a frequency before
giving up (default: 30).
.TP
.B \fB\-\-dvbin\-full\-transponder=<yes|no>\fP
Apply no filters on program PIDs, only tune to frequency and pass full
transponder to demuxer.
The player frontend selects the streams from the full TS in this case,
so the program which is shown initially may not match the chosen channel.
Switching between the programs is possible by cycling the \fBprogram\fP
property.
This is useful to record multiple programs on a single transponder,
or to work around issues in the \fBchannels.conf\fP\&.
It is also recommended to use this for channels which switch PIDs
on\-the\-fly, e.g. for regional news.
.sp
Default: \fBno\fP
.TP
.B \fB\-\-dvbin\-channel\-switch\-offset=<integer>\fP
This value is not meant for setting via configuration, but used in channel
switching. An \fBinput.conf\fP can \fBcycle\fP this value \fBup\fP and \fBdown\fP
to perform channel switching. This number effectively gives the offset
to the initially tuned to channel in the channel list.
.sp
An example \fBinput.conf\fP could contain:
\fBH cycle dvbin\-channel\-switch\-offset up\fP, \fBK cycle dvbin\-channel\-switch\-offset down\fP
.UNINDENT
.SS ALSA audio output options
.INDENT 0.0
.TP
.B \fB\-\-alsa\-device=<device>\fP
Deprecated, use \fB\-\-audio\-device\fP (requires \fBalsa/\fP prefix).
.TP
.B \fB\-\-alsa\-resample=yes\fP
Enable ALSA resampling plugin. (This is disabled by default, because
some drivers report incorrect audio delay in some cases.)
.TP
.B \fB\-\-alsa\-mixer\-device=<device>\fP
Set the mixer device used with \fBao\-volume\fP (default: \fBdefault\fP).
.TP
.B \fB\-\-alsa\-mixer\-name=<name>\fP
Set the name of the mixer element (default: \fBMaster\fP). This is for
example \fBPCM\fP or \fBMaster\fP\&.
.TP
.B \fB\-\-alsa\-mixer\-index=<number>\fP
Set the index of the mixer channel (default: 0). Consider the output of
"\fBamixer scontrols\fP", then the index is the number that follows the
name of the element.
.TP
.B \fB\-\-alsa\-non\-interleaved\fP
Allow output of non\-interleaved formats (if the audio decoder uses
this format). Currently disabled by default, because some popular
ALSA plugins are utterly broken with non\-interleaved formats.
.TP
.B \fB\-\-alsa\-ignore\-chmap\fP
Don\(aqt read or set the channel map of the ALSA device \- only request the
required number of channels, and then pass the audio as\-is to it. This
option most likely should not be used. It can be useful for debugging,
or for static setups with a specially engineered ALSA configuration (in
this case you should always force the same layout with \fB\-\-audio\-channels\fP,
or it will work only for files which use the layout implicit to your
ALSA device).
.TP
.B \fB\-\-alsa\-buffer\-time=<microseconds>\fP
Set the requested buffer time in microseconds. A value of 0 skips requesting
anything from the ALSA API. This and the \fB\-\-alsa\-periods\fP option uses the
ALSA \fBnear\fP functions to set the requested parameters. If doing so results
in an empty configuration set, setting these parameters is skipped.
.sp
Both options control the buffer size. A low buffer size can lead to higher
CPU usage and audio dropouts, while a high buffer size can lead to higher
latency in volume changes and other filtering.
.TP
.B \fB\-\-alsa\-periods=<number>\fP
Number of periods requested from the ALSA API. See \fB\-\-alsa\-buffer\-time\fP
for further remarks.
.UNINDENT
.SS GPU renderer options
.sp
The following video options are currently all specific to \fB\-\-vo=gpu\fP and
\fB\-\-vo=libmpv\fP only, which are the only VOs that implement them.
.INDENT 0.0
.TP
.B \fB\-\-scale=<filter>\fP
The filter function to use when upscaling video.
.INDENT 7.0
.TP
.B \fBbilinear\fP
Bilinear hardware texture filtering (fastest, very low quality). This
is the default for compatibility reasons.
.TP
.B \fBspline36\fP
Mid quality and speed. This is the default when using \fBgpu\-hq\fP\&.
.TP
.B \fBlanczos\fP
Lanczos scaling. Provides mid quality and speed. Generally worse than
\fBspline36\fP, but it results in a slightly sharper image which is good
for some content types. The number of taps can be controlled with
\fBscale\-radius\fP, but is best left unchanged.
.sp
(This filter is an alias for \fBsinc\fP\-windowed \fBsinc\fP)
.TP
.B \fBewa_lanczos\fP
Elliptic weighted average Lanczos scaling. Also known as Jinc.
Relatively slow, but very good quality. The radius can be controlled
with \fBscale\-radius\fP\&. Increasing the radius makes the filter sharper
but adds more ringing.
.sp
(This filter is an alias for \fBjinc\fP\-windowed \fBjinc\fP)
.TP
.B \fBewa_lanczossharp\fP
A slightly sharpened version of ewa_lanczos, preconfigured to use an
ideal radius and parameter. If your hardware can run it, this is
probably what you should use by default.
.TP
.B \fBmitchell\fP
Mitchell\-Netravali. The \fBB\fP and \fBC\fP parameters can be set with
\fB\-\-scale\-param1\fP and \fB\-\-scale\-param2\fP\&. This filter is very good at
downscaling (see \fB\-\-dscale\fP).
.TP
.B \fBoversample\fP
A version of nearest neighbour that (naively) oversamples pixels, so
that pixels overlapping edges get linearly interpolated instead of
rounded. This essentially removes the small imperfections and judder
artifacts caused by nearest\-neighbour interpolation, in exchange for
adding some blur. This filter is good at temporal interpolation, and
also known as "smoothmotion" (see \fB\-\-tscale\fP).
.TP
.B \fBlinear\fP
A \fB\-\-tscale\fP filter.
.UNINDENT
.sp
There are some more filters, but most are not as useful. For a complete
list, pass \fBhelp\fP as value, e.g.:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-scale=help
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-cscale=<filter>\fP
As \fB\-\-scale\fP, but for interpolating chroma information. If the image is
not subsampled, this option is ignored entirely.
.TP
.B \fB\-\-dscale=<filter>\fP
Like \fB\-\-scale\fP, but apply these filters on downscaling instead. If this
option is unset, the filter implied by \fB\-\-scale\fP will be applied.
.TP
.B \fB\-\-tscale=<filter>\fP
The filter used for interpolating the temporal axis (frames). This is only
used if \fB\-\-interpolation\fP is enabled. The only valid choices for
\fB\-\-tscale\fP are separable convolution filters (use \fB\-\-tscale=help\fP to
get a list). The default is \fBmitchell\fP\&.
.sp
Common \fB\-\-tscale\fP choices include \fBoversample\fP, \fBlinear\fP,
\fBcatmull_rom\fP, \fBmitchell\fP, \fBgaussian\fP, or \fBbicubic\fP\&. These are
listed in increasing order of smoothness/blurriness, with \fBbicubic\fP
being the smoothest/blurriest and \fBoversample\fP being the sharpest/least
smooth.
.TP
.B \fB\-\-scale\-param1=<value>\fP, \fB\-\-scale\-param2=<value>\fP, \fB\-\-cscale\-param1=<value>\fP, \fB\-\-cscale\-param2=<value>\fP, \fB\-\-dscale\-param1=<value>\fP, \fB\-\-dscale\-param2=<value>\fP, \fB\-\-tscale\-param1=<value>\fP, \fB\-\-tscale\-param2=<value>\fP
Set filter parameters. By default, these are set to the special string
\fBdefault\fP, which maps to a scaler\-specific default value. Ignored if the
filter is not tunable. Currently, this affects the following filter
parameters:
.INDENT 7.0
.TP
.B bcspline
Spline parameters (\fBB\fP and \fBC\fP). Defaults to 0.5 for both.
.TP
.B gaussian
Scale parameter (\fBt\fP). Increasing this makes the result blurrier.
Defaults to 1.
.TP
.B oversample
Minimum distance to an edge before interpolation is used. Setting this
to 0 will always interpolate edges, whereas setting it to 0.5 will
never interpolate, thus behaving as if the regular nearest neighbour
algorithm was used. Defaults to 0.0.
.UNINDENT
.TP
.B \fB\-\-scale\-blur=<value>\fP, \fB\-\-scale\-wblur=<value>\fP, \fB\-\-cscale\-blur=<value>\fP, \fB\-\-cscale\-wblur=<value>\fP, \fB\-\-dscale\-blur=<value>\fP, \fB\-\-dscale\-wblur=<value>\fP, \fB\-\-tscale\-blur=<value>\fP, \fB\-\-tscale\-wblur=<value>\fP
Kernel/window scaling factor (also known as a blur factor). Decreasing this
makes the result sharper, increasing it makes it blurrier (default 0). If
set to 0, the kernel\(aqs preferred blur factor is used. Note that setting
this too low (eg. 0.5) leads to bad results. It\(aqs generally recommended to
stick to values between 0.8 and 1.2.
.TP
.B \fB\-\-scale\-clamp=<0.0\-1.0>\fP, \fB\-\-cscale\-clamp\fP, \fB\-\-dscale\-clamp\fP, \fB\-\-tscale\-clamp\fP
Specifies a weight bias to multiply into negative coefficients. Specifying
\fB\-\-scale\-clamp=1\fP has the effect of removing negative weights completely,
thus effectively clamping the value range to [0\-1]. Values between 0.0 and
1.0 can be specified to apply only a moderate diminishment of negative
weights. This is especially useful for \fB\-\-tscale\fP, where it reduces
excessive ringing artifacts in the temporal domain (which typically
manifest themselves as short flashes or fringes of black, mostly around
moving edges) in exchange for potentially adding more blur. The default for
\fB\-\-tscale\-clamp\fP is 1.0, the others default to 0.0.
.TP
.B \fB\-\-scale\-cutoff=<value>\fP, \fB\-\-cscale\-cutoff=<value>\fP, \fB\-\-dscale\-cutoff=<value>\fP
Cut off the filter kernel prematurely once the value range drops below
this threshold. Doing so allows more aggressive pruning of skippable
coefficients by disregarding parts of the LUT which are effectively zeroed
out by the window function. Only affects polar (EWA) filters. The default
is 0.001 for each, which is perceptually transparent but provides a 10%\-20%
speedup, depending on the exact radius and filter kernel chosen.
.TP
.B \fB\-\-scale\-taper=<value>\fP, \fB\-\-scale\-wtaper=<value>\fP, \fB\-\-dscale\-taper=<value>\fP, \fB\-\-dscale\-wtaper=<value>\fP, \fB\-\-cscale\-taper=<value>\fP, \fB\-\-cscale\-wtaper=<value>\fP, \fB\-\-tscale\-taper=<value>\fP, \fB\-\-tscale\-wtaper=<value>\fP
Kernel/window taper factor. Increasing this flattens the filter function.
Value range is 0 to 1. A value of 0 (the default) means no flattening, a
value of 1 makes the filter completely flat (equivalent to a box function).
Values in between mean that some portion will be flat and the actual filter
function will be squeezed into the space in between.
.TP
.B \fB\-\-scale\-radius=<value>\fP, \fB\-\-cscale\-radius=<value>\fP, \fB\-\-dscale\-radius=<value>\fP, \fB\-\-tscale\-radius=<value>\fP
Set radius for tunable filters, must be a float number between 0.5 and
16.0. Defaults to the filter\(aqs preferred radius if not specified. Doesn\(aqt
work for every scaler and VO combination.
.sp
Note that depending on filter implementation details and video scaling
ratio, the radius that actually being used might be different (most likely
being increased a bit).
.TP
.B \fB\-\-scale\-antiring=<value>\fP, \fB\-\-cscale\-antiring=<value>\fP, \fB\-\-dscale\-antiring=<value>\fP, \fB\-\-tscale\-antiring=<value>\fP
Set the antiringing strength. This tries to eliminate ringing, but can
introduce other artifacts in the process. Must be a float number between
0.0 and 1.0. The default value of 0.0 disables antiringing entirely.
.sp
Note that this doesn\(aqt affect the special filters \fBbilinear\fP and
\fBbicubic_fast\fP, nor does it affect any polar (EWA) scalers.
.TP
.B \fB\-\-scale\-window=<window>\fP, \fB\-\-cscale\-window=<window>\fP, \fB\-\-dscale\-window=<window>\fP, \fB\-\-tscale\-window=<window>\fP
(Advanced users only) Choose a custom windowing function for the kernel.
Defaults to the filter\(aqs preferred window if unset. Use
\fB\-\-scale\-window=help\fP to get a list of supported windowing functions.
.TP
.B \fB\-\-scale\-wparam=<window>\fP, \fB\-\-cscale\-wparam=<window>\fP, \fB\-\-cscale\-wparam=<window>\fP, \fB\-\-tscale\-wparam=<window>\fP
(Advanced users only) Configure the parameter for the window function given
by \fB\-\-scale\-window\fP etc. By default, these are set to the special string
\fBdefault\fP, which maps to a window\-specific default value. Ignored if the
window is not tunable. Currently, this affects the following window
parameters:
.INDENT 7.0
.TP
.B kaiser
Window parameter (alpha). Defaults to 6.33.
.TP
.B blackman
Window parameter (alpha). Defaults to 0.16.
.TP
.B gaussian
Scale parameter (t). Increasing this makes the window wider. Defaults
to 1.
.UNINDENT
.TP
.B \fB\-\-scaler\-lut\-size=<4..10>\fP
Set the size of the lookup texture for scaler kernels (default: 6). The
actual size of the texture is \fB2^N\fP for an option value of \fBN\fP\&. So the
lookup texture with the default setting uses 64 samples.
.sp
All weights are linearly interpolated from those samples, so increasing
the size of lookup table might improve the accuracy of scaler.
.TP
.B \fB\-\-scaler\-resizes\-only\fP
Disable the scaler if the video image is not resized. In that case,
\fBbilinear\fP is used instead of whatever is set with \fB\-\-scale\fP\&. Bilinear
will reproduce the source image perfectly if no scaling is performed.
Enabled by default. Note that this option never affects \fB\-\-cscale\fP\&.
.TP
.B \fB\-\-correct\-downscaling\fP
When using convolution based filters, extend the filter size when
downscaling. Increases quality, but reduces performance while downscaling.
.sp
This will perform slightly sub\-optimally for anamorphic video (but still
better than without it) since it will extend the size to match only the
milder of the scale factors between the axes.
.TP
.B \fB\-\-linear\-downscaling\fP
Scale in linear light when downscaling. It should only be used with a
\fB\-\-fbo\-format\fP that has at least 16 bit precision. This option
has no effect on HDR content.
.TP
.B \fB\-\-linear\-upscaling\fP
Scale in linear light when upscaling. Like \fB\-\-linear\-downscaling\fP, it
should only be used with a \fB\-\-fbo\-format\fP that has at least 16 bits
precisions. This is not usually recommended except for testing/specific
purposes. Users are advised to either enable \fB\-\-sigmoid\-upscaling\fP or
keep both options disabled (i.e. scaling in gamma light).
.TP
.B \fB\-\-sigmoid\-upscaling\fP
When upscaling, use a sigmoidal color transform to avoid emphasizing
ringing artifacts. This is incompatible with and replaces
\fB\-\-linear\-upscaling\fP\&. (Note that sigmoidization also requires
linearization, so the \fBLINEAR\fP rendering step fires in both cases)
.TP
.B \fB\-\-sigmoid\-center\fP
The center of the sigmoid curve used for \fB\-\-sigmoid\-upscaling\fP, must be a
float between 0.0 and 1.0. Defaults to 0.75 if not specified.
.TP
.B \fB\-\-sigmoid\-slope\fP
The slope of the sigmoid curve used for \fB\-\-sigmoid\-upscaling\fP, must be a
float between 1.0 and 20.0. Defaults to 6.5 if not specified.
.TP
.B \fB\-\-interpolation\fP
Reduce stuttering caused by mismatches in the video fps and display refresh
rate (also known as judder).
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This requires setting the \fB\-\-video\-sync\fP option to one
of the \fBdisplay\-\fP modes, or it will be silently disabled.
This was not required before mpv 0.14.0.
.UNINDENT
.UNINDENT
.sp
This essentially attempts to interpolate the missing frames by convoluting
the video along the temporal axis. The filter used can be controlled using
the \fB\-\-tscale\fP setting.
.TP
.B \fB\-\-interpolation\-threshold=<0..1,\-1>\fP
Threshold below which frame ratio interpolation gets disabled (default:
\fB0.0001\fP). This is calculated as \fBabs(disphz/vfps \- 1) < threshold\fP,
where \fBvfps\fP is the speed\-adjusted video FPS, and \fBdisphz\fP the
display refresh rate. (The speed\-adjusted video FPS is roughly equal to
the normal video FPS, but with slowdown and speedup applied. This matters
if you use \fB\-\-video\-sync=display\-resample\fP to make video run synchronously
to the display FPS, or if you change the \fBspeed\fP property.)
.sp
The default is intended to almost always enable interpolation if the
playback rate is even slightly different from the display refresh rate. But
note that if you use e.g. \fB\-\-video\-sync=display\-vdrop\fP, small deviations
in the rate can disable interpolation and introduce a discontinuity every
other minute.
.sp
Set this to \fB\-1\fP to disable this logic.
.TP
.B \fB\-\-opengl\-pbo\fP
Enable use of PBOs. On some drivers this can be faster, especially if the
source video size is huge (e.g. so called "4K" video). On other drivers it
might be slower or cause latency issues.
.TP
.B \fB\-\-dither\-depth=<N|no|auto>\fP
Set dither target depth to N. Default: no.
.INDENT 7.0
.TP
.B no
Disable any dithering done by mpv.
.TP
.B auto
Automatic selection. If output bit depth cannot be detected, 8 bits per
component are assumed.
.TP
.B 8
Dither to 8 bit output.
.UNINDENT
.sp
Note that the depth of the connected video display device cannot be
detected. Often, LCD panels will do dithering on their own, which conflicts
with this option and leads to ugly output.
.TP
.B \fB\-\-dither\-size\-fruit=<2\-8>\fP
Set the size of the dither matrix (default: 6). The actual size of the
matrix is \fB(2^N) x (2^N)\fP for an option value of \fBN\fP, so a value of 6
gives a size of 64x64. The matrix is generated at startup time, and a large
matrix can take rather long to compute (seconds).
.sp
Used in \fB\-\-dither=fruit\fP mode only.
.TP
.B \fB\-\-dither=<fruit|ordered|error\-diffusion|no>\fP
Select dithering algorithm (default: fruit). (Normally, the
\fB\-\-dither\-depth\fP option controls whether dithering is enabled.)
.sp
The \fBerror\-diffusion\fP option requires compute shader support. It also
requires large amount of shared memory to run, the size of which depends on
both the kernel (see \fB\-\-error\-diffusion\fP option below) and the height of
video window. It will fallback to \fBfruit\fP dithering if there is no enough
shared memory to run the shader.
.TP
.B \fB\-\-temporal\-dither\fP
Enable temporal dithering. (Only active if dithering is enabled in
general.) This changes between 8 different dithering patterns on each frame
by changing the orientation of the tiled dithering matrix. Unfortunately,
this can lead to flicker on LCD displays, since these have a high reaction
time.
.TP
.B \fB\-\-temporal\-dither\-period=<1\-128>\fP
Determines how often the dithering pattern is updated when
\fB\-\-temporal\-dither\fP is in use. 1 (the default) will update on every video
frame, 2 on every other frame, etc.
.TP
.B \fB\-\-error\-diffusion=<kernel>\fP
The error diffusion kernel to use when \fB\-\-dither=error\-diffusion\fP is set.
.INDENT 7.0
.TP
.B \fBsimple\fP
Propagate error to only two adjacent pixels. Fastest but low quality.
.TP
.B \fBsierra\-lite\fP
Fast with reasonable quality. This is the default.
.TP
.B \fBfloyd\-steinberg\fP
Most notable error diffusion kernel.
.TP
.B \fBatkinson\fP
Looks different from other kernels because only fraction of errors will
be propagated during dithering. A typical use case of this kernel is
saving dithered screenshot (in window mode). This kernel produces
slightly smaller file, with still reasonable dithering quality.
.UNINDENT
.sp
There are other kernels (use \fB\-\-error\-diffusion=help\fP to list) but most of
them are much slower and demanding even larger amount of shared memory.
Among these kernels, \fBburkes\fP achieves a good balance between performance
and quality, and probably is the one you want to try first.
.TP
.B \fB\-\-gpu\-debug\fP
Enables GPU debugging. What this means depends on the API type. For OpenGL,
it calls \fBglGetError()\fP, and requests a debug context. For Vulkan, it
enables validation layers.
.TP
.B \fB\-\-opengl\-swapinterval=<n>\fP
Interval in displayed frames between two buffer swaps. 1 is equivalent to
enable VSYNC, 0 to disable VSYNC. Defaults to 1 if not specified.
.sp
Note that this depends on proper OpenGL vsync support. On some platforms
and drivers, this only works reliably when in fullscreen mode. It may also
require driver\-specific hacks if using multiple monitors, to ensure mpv
syncs to the right one. Compositing window managers can also lead to bad
results, as can missing or incorrect display FPS information (see
\fB\-\-override\-display\-fps\fP).
.TP
.B \fB\-\-vulkan\-swap\-mode=<mode>\fP
Controls the presentation mode of the vulkan swapchain. This is similar
to the \fB\-\-opengl\-swapinterval\fP option.
.INDENT 7.0
.TP
.B auto
Use the preferred swapchain mode for the vulkan context. (Default)
.TP
.B fifo
Non\-tearing, vsync blocked. Similar to "VSync on".
.TP
.B fifo\-relaxed
Tearing, vsync blocked. Late frames will tear instead of stuttering.
.TP
.B mailbox
Non\-tearing, not vsync blocked. Similar to "triple buffering".
.TP
.B immediate
Tearing, not vsync blocked. Similar to "VSync off".
.UNINDENT
.TP
.B \fB\-\-vulkan\-queue\-count=<1..8>\fP
Controls the number of VkQueues used for rendering (limited by how many
your device supports). In theory, using more queues could enable some
parallelism between frames (when using a \fB\-\-swapchain\-depth\fP higher than
1), but it can also slow things down on hardware where there\(aqs no true
parallelism between queues. (Default: 1)
.TP
.B \fB\-\-vulkan\-async\-transfer\fP
Enables the use of async transfer queues on supported vulkan devices. Using
them allows transfer operations like texture uploads and blits to happen
concurrently with the actual rendering, thus improving overall throughput
and power consumption. Enabled by default, and should be relatively safe.
.TP
.B \fB\-\-vulkan\-async\-compute\fP
Enables the use of async compute queues on supported vulkan devices. Using
this, in theory, allows out\-of\-order scheduling of compute shaders with
graphics shaders, thus enabling the hardware to do more effective work while
waiting for pipeline bubbles and memory operations. Not beneficial on all
GPUs. It\(aqs worth noting that if async compute is enabled, and the device
supports more compute queues than graphics queues (bound by the restrictions
set by \fB\-\-vulkan\-queue\-count\fP), mpv will internally try and prefer the
use of compute shaders over fragment shaders wherever possible. Enabled by
default, although Nvidia users may want to disable it.
.TP
.B \fB\-\-d3d11\-warp=<yes|no|auto>\fP
Use WARP (Windows Advanced Rasterization Platform) with the D3D11 GPU
backend (default: auto). This is a high performance software renderer. By
default, it is only used when the system has no hardware adapters that
support D3D11. While the extended GPU features will work with WARP, they
can be very slow.
.TP
.B \fB\-\-d3d11\-feature\-level=<12_1|12_0|11_1|11_0|10_1|10_0|9_3|9_2|9_1>\fP
Select a specific feature level when using the D3D11 GPU backend. By
default, the highest available feature level is used. This option can be
used to select a lower feature level, which is mainly useful for debugging.
Most extended GPU features will not work at 9_x feature levels.
.TP
.B \fB\-\-d3d11\-flip=<yes|no>\fP
Enable flip\-model presentation, which avoids unnecessarily copying the
backbuffer by sharing surfaces with the DWM (default: yes). This may cause
performance issues with older drivers. If flip\-model presentation is not
supported (for example, on Windows 7 without the platform update), mpv will
automatically fall back to the older bitblt presentation model.
.TP
.B \fB\-\-d3d11\-sync\-interval=<0..4>\fP
Schedule each frame to be presented for this number of VBlank intervals.
(default: 1) Setting to 1 will enable VSync, setting to 0 will disable it.
.TP
.B \fB\-\-d3d11\-adapter=<adapter name|help>\fP
Select a specific D3D11 adapter to utilize for D3D11 rendering.
Will pick the default adapter if unset. Alternatives are listed
when the name "help" is given.
.sp
Checks for matches based on the start of the string, case
insensitive. Thus, if the description of the adapter starts with
the vendor name, that can be utilized as the selection parameter.
.sp
Hardware decoders utilizing the D3D11 rendering abstraction\(aqs helper
functionality to receive a device, such as D3D11VA or DXVA2\(aqs DXGI
mode, will be affected by this choice.
.TP
.B \fB\-\-d3d11\-output\-format=<auto|rgba8|bgra8|rgb10_a2|rgba16f>\fP
Select a specific D3D11 output format to utilize for D3D11 rendering.
"auto" is the default, which will pick either rgba8 or rgb10_a2 depending
on the configured desktop bit depth. rgba16f and bgra8 are left out of
the autodetection logic, and are available for manual testing.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Desktop bit depth querying is only available from an API available
from Windows 10. Thus on older systems it will only automatically
utilize the rgba8 output format.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-d3d11\-output\-csp=<auto|srgb|linear|pq|bt.2020>\fP
Select a specific D3D11 output color space to utilize for D3D11 rendering.
"auto" is the default, which will select the color space of the desktop
on which the swap chain is located.
.sp
Values other than "srgb" and "pq" have had issues in testing, so they
are mostly available for manual testing.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Swap chain color space configuration is only available from an API
available from Windows 10. Thus on older systems it will not work.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-d3d11va\-zero\-copy=<yes|no>\fP
By default, when using hardware decoding with \fB\-\-gpu\-api=d3d11\fP, the
video image will be copied (GPU\-to\-GPU) from the decoder surface to a
shader resource. Set this option to avoid that copy by sampling directly
from the decoder image. This may increase performance and reduce power
usage, but can cause the image to be sampled incorrectly on the bottom and
right edges due to padding, and may invoke driver bugs, since Direct3D 11
technically does not allow sampling from a decoder surface (though most
drivers support it.)
.sp
Currently only relevant for \fB\-\-gpu\-api=d3d11\fP\&.
.TP
.B \fB\-\-wayland\-frame\-wait\-offset=<\-500..3000>\fP
Control the amount of offset (in microseconds) to add to wayland\(aqs frame wait
(default 1000). The wayland context assumes that if frame callback or presentation
feedback isn\(aqt received within a certain amount of time then the video is being
rendered offscreen. The time it waits is equal to how long it takes your monitor
to display a frame (i.e. 1/refresh rate) plus the offset. In general, staying
close to your monitor\(aqs refresh rate is preferred, but with a small offset in
case a frame takes a little long to display.
.TP
.B \fB\-\-wayland\-disable\-vsync=<yes|no>\fP
Disable vsync for the wayland contexts (default: no). Useful for benchmarking
the wayland context when combined with \fBvideo\-sync=display\-desync\fP,
\fB\-\-no\-audio\fP, and \fB\-\-untimed=yes\fP\&. Only works with \fB\-\-gpu\-context=wayland\fP
and \fB\-\-gpu\-context=waylandvk\fP\&.
.TP
.B \fB\-\-spirv\-compiler=<compiler>\fP
Controls which compiler is used to translate GLSL to SPIR\-V. This is
(currently) only relevant for \fB\-\-gpu\-api=vulkan\fP and \fI\-\-gpu\-api=d3d11\fP\&.
The possible choices are currently only:
.INDENT 7.0
.TP
.B auto
Use the first available compiler. (Default)
.TP
.B shaderc
Use libshaderc, which is an API wrapper around glslang. This is
generally the most preferred, if available.
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This option is deprecated, since there is only one reasonable value.
It may be removed in the future.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-glsl\-shader=<file>\fP, \fB\-\-glsl\-shaders=<file\-list>\fP
Custom GLSL hooks. These are a flexible way to add custom fragment shaders,
which can be injected at almost arbitrary points in the rendering pipeline,
and access all previous intermediate textures.
.sp
Each use of the \fB\-\-glsl\-shader\fP option will add another file to the
internal list of shaders, while \fB\-\-glsl\-shaders\fP takes a list of files,
and overwrites the internal list with it. The latter is a path list option
(see \fI\%List Options\fP for details).
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
The syntax is not stable yet and may change any time.
.UNINDENT
.UNINDENT
.sp
The general syntax of a user shader looks like this:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
//!METADATA ARGS...
//!METADATA ARGS...

vec4 hook() {
   ...
   return something;
}

//!METADATA ARGS...
//!METADATA ARGS...

\&...
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Each section of metadata, along with the non\-metadata lines after it,
defines a single block. There are currently two types of blocks, HOOKs and
TEXTUREs.
.sp
A \fBTEXTURE\fP block can set the following options:
.INDENT 7.0
.TP
.B TEXTURE <name> (required)
The name of this texture. Hooks can then bind the texture under this
name using BIND. This must be the first option of the texture block.
.TP
.B SIZE <width> [<height>] [<depth>] (required)
The dimensions of the texture. The height and depth are optional. The
type of texture (1D, 2D or 3D) depends on the number of components
specified.
.TP
.B FORMAT <name> (required)
The texture format for the samples. Supported texture formats are listed
in debug logging when the \fBgpu\fP VO is initialized (look for
\fBTexture formats:\fP). Usually, this follows OpenGL naming conventions.
For example, \fBrgb16\fP provides 3 channels with normalized 16 bit
components. One oddity are float formats: for example, \fBrgba16f\fP has
16 bit internal precision, but the texture data is provided as 32 bit
floats, and the driver converts the data on texture upload.
.sp
Although format names follow a common naming convention, not all of them
are available on all hardware, drivers, GL versions, and so on.
.TP
.B FILTER <LINEAR|NEAREST>
The min/magnification filter used when sampling from this texture.
.TP
.B BORDER <CLAMP|REPEAT|MIRROR>
The border wrapping mode used when sampling from this texture.
.UNINDENT
.sp
Following the metadata is a string of bytes in hexadecimal notation that
define the raw texture data, corresponding to the format specified by
\fIFORMAT\fP, on a single line with no extra whitespace.
.sp
A \fBHOOK\fP block can set the following options:
.INDENT 7.0
.TP
.B HOOK <name> (required)
The texture which to hook into. May occur multiple times within a
metadata block, up to a predetermined limit. See below for a list of
hookable textures.
.TP
.B DESC <title>
User\-friendly description of the pass. This is the name used when
representing this shader in the list of passes for property
\fIvo\-passes\fP\&.
.TP
.B BIND <name>
Loads a texture (either coming from mpv or from a \fBTEXTURE\fP block)
and makes it available to the pass. When binding textures from mpv,
this will also set up macros to facilitate accessing it properly. See
below for a list. By default, no textures are bound. The special name
HOOKED can be used to refer to the texture that triggered this pass.
.TP
.B SAVE <name>
Gives the name of the texture to save the result of this pass into. By
default, this is set to the special name HOOKED which has the effect of
overwriting the hooked texture.
.TP
.B WIDTH <szexpr>, HEIGHT <szexpr>
Specifies the size of the resulting texture for this pass. \fBszexpr\fP
refers to an expression in RPN (reverse polish notation), using the
operators + \- * / > < !, floating point literals, and references to
sizes of existing texture (such as MAIN.width or CHROMA.height),
OUTPUT, or NATIVE_CROPPED (size of an input texture cropped after
pan\-and\-scan, video\-align\-x/y, video\-pan\-x/y, etc. and possibly
prescaled). By default, these are set to HOOKED.w and HOOKED.h,
espectively.
.TP
.B WHEN <szexpr>
Specifies a condition that needs to be true (non\-zero) for the shader
stage to be evaluated. If it fails, it will silently be omitted. (Note
that a shader stage like this which has a dependency on an optional
hook point can still cause that hook point to be saved, which has some
minor overhead)
.TP
.B OFFSET <ox oy | ALIGN>
Indicates a pixel shift (offset) introduced by this pass. These pixel
offsets will be accumulated and corrected during the next scaling pass
(\fBcscale\fP or \fBscale\fP). The default values are 0 0 which correspond
to no shift. Note that offsets are ignored when not overwriting the
hooked texture.
.sp
A special value of \fBALIGN\fP will attempt to fix existing offset of
HOOKED by align it with reference. It requires HOOKED to be resizable
(see below). It works transparently with fragment shader. For compute
shader, the predefined \fBtexmap\fP macro is required to handle coordinate
mapping.
.TP
.B COMPONENTS <n>
Specifies how many components of this pass\(aqs output are relevant and
should be stored in the texture, up to 4 (rgba). By default, this value
is equal to the number of components in HOOKED.
.TP
.B COMPUTE <bw> <bh> [<tw> <th>]
Specifies that this shader should be treated as a compute shader, with
the block size bw and bh. The compute shader will be dispatched with
however many blocks are necessary to completely tile over the output.
Within each block, there will bw tw*th threads, forming a single work
group. In other words: tw and th specify the work group size, which can
be different from the block size. So for example, a compute shader with
bw, bh = 32 and tw, th = 8 running on a 500x500 texture would dispatch
16x16 blocks (rounded up), each with 8x8 threads.
.sp
Compute shaders in mpv are treated a bit different from fragment
shaders. Instead of defining a \fBvec4 hook\fP that produces an output
sample, you directly define \fBvoid hook\fP which writes to a fixed
writeonly image unit named \fBout_image\fP (this is bound by mpv) using
\fIimageStore\fP\&. To help translate texture coordinates in the absence of
vertices, mpv provides a special function \fBNAME_map(id)\fP to map from
the texel space of the output image to the texture coordinates for all
bound textures. In particular, \fBNAME_pos\fP is equivalent to
\fBNAME_map(gl_GlobalInvocationID)\fP, although using this only really
makes sense if (tw,th) == (bw,bh).
.UNINDENT
.sp
Each bound mpv texture (via \fBBIND\fP) will make available the following
definitions to that shader pass, where NAME is the name of the bound
texture:
.INDENT 7.0
.TP
.B vec4 NAME_tex(vec2 pos)
The sampling function to use to access the texture at a certain spot
(in texture coordinate space, range [0,1]). This takes care of any
necessary normalization conversions.
.TP
.B vec4 NAME_texOff(vec2 offset)
Sample the texture at a certain offset in pixels. This works like
NAME_tex but additionally takes care of necessary rotations, so that
sampling at e.g. vec2(\-1,0) is always one pixel to the left.
.TP
.B vec2 NAME_pos
The local texture coordinate of that texture, range [0,1].
.TP
.B vec2 NAME_size
The (rotated) size in pixels of the texture.
.TP
.B mat2 NAME_rot
The rotation matrix associated with this texture. (Rotates pixel space
to texture coordinates)
.TP
.B vec2 NAME_pt
The (unrotated) size of a single pixel, range [0,1].
.TP
.B float NAME_mul
The coefficient that needs to be multiplied into the texture contents
in order to normalize it to the range [0,1].
.TP
.B sampler NAME_raw
The raw bound texture itself. The use of this should be avoided unless
absolutely necessary.
.UNINDENT
.sp
Normally, users should use either NAME_tex or NAME_texOff to read from the
texture. For some shaders however , it can be better for performance to do
custom sampling from NAME_raw, in which case care needs to be taken to
respect NAME_mul and NAME_rot.
.sp
In addition to these parameters, the following uniforms are also globally
available:
.INDENT 7.0
.TP
.B float random
A random number in the range [0\-1], different per frame.
.TP
.B int frame
A simple count of frames rendered, increases by one per frame and never
resets (regardless of seeks).
.TP
.B vec2 input_size
The size in pixels of the input image (possibly cropped and prescaled).
.TP
.B vec2 target_size
The size in pixels of the visible part of the scaled (and possibly
cropped) image.
.TP
.B vec2 tex_offset
Texture offset introduced by user shaders or options like panscan, video\-align\-x/y, video\-pan\-x/y.
.UNINDENT
.sp
Internally, vo_gpu may generate any number of the following textures.
Whenever a texture is rendered and saved by vo_gpu, all of the passes
that have hooked into it will run, in the order they were added by the
user. This is a list of the legal hook points:
.INDENT 7.0
.TP
.B RGB, LUMA, CHROMA, ALPHA, XYZ (resizable)
Source planes (raw). Which of these fire depends on the image format of
the source.
.TP
.B CHROMA_SCALED, ALPHA_SCALED (fixed)
Source planes (upscaled). These only fire on subsampled content.
.TP
.B NATIVE (resizable)
The combined image, in the source colorspace, before conversion to RGB.
.TP
.B MAINPRESUB (resizable)
The image, after conversion to RGB, but before
\fB\-\-blend\-subtitles=video\fP is applied.
.TP
.B MAIN (resizable)
The main image, after conversion to RGB but before upscaling.
.TP
.B LINEAR (fixed)
Linear light image, before scaling. This only fires when
\fB\-\-linear\-upscaling\fP, \fB\-\-linear\-downscaling\fP or
\fB\-\-sigmoid\-upscaling\fP is in effect.
.TP
.B SIGMOID (fixed)
Sigmoidized light, before scaling. This only fires when
\fB\-\-sigmoid\-upscaling\fP is in effect.
.TP
.B PREKERNEL (fixed)
The image immediately before the scaler kernel runs.
.TP
.B POSTKERNEL (fixed)
The image immediately after the scaler kernel runs.
.TP
.B SCALED (fixed)
The final upscaled image, before color management.
.TP
.B OUTPUT (fixed)
The final output image, after color management but before dithering and
drawing to screen.
.UNINDENT
.sp
Only the textures labelled with \fBresizable\fP may be transformed by the
pass. When overwriting a texture marked \fBfixed\fP, the WIDTH, HEIGHT and
OFFSET must be left at their default values.
.TP
.B \fB\-\-glsl\-shader=<file>\fP
CLI/config file only alias for \fB\-\-glsl\-shaders\-append\fP\&.
.TP
.B \fB\-\-deband\fP
Enable the debanding algorithm. This greatly reduces the amount of visible
banding, blocking and other quantization artifacts, at the expense of
very slightly blurring some of the finest details. In practice, it\(aqs
virtually always an improvement \- the only reason to disable it would be
for performance.
.TP
.B \fB\-\-deband\-iterations=<1..16>\fP
The number of debanding steps to perform per sample. Each step reduces a
bit more banding, but takes time to compute. Note that the strength of each
step falls off very quickly, so high numbers (>4) are practically useless.
(Default 1)
.TP
.B \fB\-\-deband\-threshold=<0..4096>\fP
The debanding filter\(aqs cut\-off threshold. Higher numbers increase the
debanding strength dramatically but progressively diminish image details.
(Default 64)
.TP
.B \fB\-\-deband\-range=<1..64>\fP
The debanding filter\(aqs initial radius. The radius increases linearly for
each iteration. A higher radius will find more gradients, but a lower
radius will smooth more aggressively. (Default 16)
.sp
If you increase the \fB\-\-deband\-iterations\fP, you should probably decrease
this to compensate.
.TP
.B \fB\-\-deband\-grain=<0..4096>\fP
Add some extra noise to the image. This significantly helps cover up
remaining quantization artifacts. Higher numbers add more noise. (Default
48)
.TP
.B \fB\-\-sharpen=<value>\fP
If set to a value other than 0, enable an unsharp masking filter. Positive
values will sharpen the image (but add more ringing and aliasing). Negative
values will blur the image. If your GPU is powerful enough, consider
alternatives like the \fBewa_lanczossharp\fP scale filter, or the
\fB\-\-scale\-blur\fP option.
.TP
.B \fB\-\-opengl\-glfinish\fP
Call \fBglFinish()\fP before swapping buffers (default: disabled). Slower,
but might improve results when doing framedropping. Can completely ruin
performance. The details depend entirely on the OpenGL driver.
.TP
.B \fB\-\-opengl\-waitvsync\fP
Call \fBglXWaitVideoSyncSGI\fP after each buffer swap (default: disabled).
This may or may not help with video timing accuracy and frame drop. It\(aqs
possible that this makes video output slower, or has no effect at all.
.sp
X11/GLX only.
.TP
.B \fB\-\-opengl\-dwmflush=<no|windowed|yes|auto>\fP
Calls \fBDwmFlush\fP after swapping buffers on Windows (default: auto). It
also sets \fBSwapInterval(0)\fP to ignore the OpenGL timing. Values are: no
(disabled), windowed (only in windowed mode), yes (also in full screen).
.sp
The value \fBauto\fP will try to determine whether the compositor is active,
and calls \fBDwmFlush\fP only if it seems to be.
.sp
This may help to get more consistent frame intervals, especially with
high\-fps clips \- which might also reduce dropped frames. Typically, a value
of \fBwindowed\fP should be enough, since full screen may bypass the DWM.
.sp
Windows only.
.TP
.B \fB\-\-angle\-d3d11\-feature\-level=<11_0|10_1|10_0|9_3>\fP
Selects a specific feature level when using the ANGLE backend with D3D11.
By default, the highest available feature level is used. This option can be
used to select a lower feature level, which is mainly useful for debugging.
Note that OpenGL ES 3.0 is only supported at feature level 10_1 or higher.
Most extended OpenGL features will not work at lower feature levels
(similar to \fB\-\-gpu\-dumb\-mode\fP).
.sp
Windows with ANGLE only.
.TP
.B \fB\-\-angle\-d3d11\-warp=<yes|no|auto>\fP
Use WARP (Windows Advanced Rasterization Platform) when using the ANGLE
backend with D3D11 (default: auto). This is a high performance software
renderer. By default, it is used when the Direct3D hardware does not
support Direct3D 11 feature level 9_3. While the extended OpenGL features
will work with WARP, they can be very slow.
.sp
Windows with ANGLE only.
.TP
.B \fB\-\-angle\-egl\-windowing=<yes|no|auto>\fP
Use ANGLE\(aqs built in EGL windowing functions to create a swap chain
(default: auto). If this is set to \fBno\fP and the D3D11 renderer is in use,
ANGLE\(aqs built in swap chain will not be used and a custom swap chain that
is optimized for video rendering will be created instead. If set to
\fBauto\fP, a custom swap chain will be used for D3D11 and the built in swap
chain will be used for D3D9. This option is mainly for debugging purposes,
in case the custom swap chain has poor performance or does not work.
.sp
If set to \fByes\fP, the \fB\-\-angle\-max\-frame\-latency\fP,
\fB\-\-angle\-swapchain\-length\fP and \fB\-\-angle\-flip\fP options will have no
effect.
.sp
Windows with ANGLE only.
.TP
.B \fB\-\-angle\-flip=<yes|no>\fP
Enable flip\-model presentation, which avoids unnecessarily copying the
backbuffer by sharing surfaces with the DWM (default: yes). This may cause
performance issues with older drivers. If flip\-model presentation is not
supported (for example, on Windows 7 without the platform update), mpv will
automatically fall back to the older bitblt presentation model.
.sp
If set to \fBno\fP, the \fB\-\-angle\-swapchain\-length\fP option will have no
effect.
.sp
Windows with ANGLE only.
.TP
.B \fB\-\-angle\-renderer=<d3d9|d3d11|auto>\fP
Forces a specific renderer when using the ANGLE backend (default: auto). In
auto mode this will pick D3D11 for systems that support Direct3D 11 feature
level 9_3 or higher, and D3D9 otherwise. This option is mainly for
debugging purposes. Normally there is no reason to force a specific
renderer, though \fB\-\-angle\-renderer=d3d9\fP may give slightly better
performance on old hardware. Note that the D3D9 renderer only supports
OpenGL ES 2.0, so most extended OpenGL features will not work if this
renderer is selected (similar to \fB\-\-gpu\-dumb\-mode\fP).
.sp
Windows with ANGLE only.
.TP
.B \fB\-\-cocoa\-force\-dedicated\-gpu=<yes|no>\fP
Deactivates the automatic graphics switching and forces the dedicated GPU.
(default: no)
.sp
OS X only.
.TP
.B \fB\-\-cocoa\-cb\-sw\-renderer=<yes|no|auto>\fP
Use the Apple Software Renderer when using cocoa\-cb (default: auto). If set
to \fBno\fP the software renderer is never used and instead fails when a the
usual pixel format could not be created, \fByes\fP will always only use the
software renderer, and \fBauto\fP only falls back to the software renderer
when the usual pixel format couldn\(aqt be created.
.sp
OS X only.
.TP
.B \fB\-\-cocoa\-cb\-10bit\-context=<yes|no>\fP
Creates a 10bit capable pixel format for the context creation (default: yes).
Instead of 8bit integer framebuffer a 16bit half\-float framebuffer is
requested.
.sp
OS X only.
.TP
.B \fB\-\-macos\-title\-bar\-appearance=<appearance>\fP
Sets the appearance of the title bar (default: auto). Not all combinations
of appearances and \fB\-\-macos\-title\-bar\-material\fP materials make sense or
are unique. Appearances that are not supported by you current macOS version
fall back to the default value.
macOS and cocoa\-cb only
.sp
\fB<appearance>\fP can be one of the following:
.INDENT 7.0
.TP
.B auto
Detects the system settings and sets the title
bar appearance appropriately. On macOS 10.14 it
also detects run time changes.
.TP
.B aqua
The standard macOS Light appearance.
.TP
.B darkAqua
The standard macOS Dark appearance. (macOS 10.14+)
.TP
.B vibrantLight
Light vibrancy appearance with.
.TP
.B vibrantDark
Dark vibrancy appearance with.
.TP
.B aquaHighContrast
Light Accessibility appearance. (macOS 10.14+)
.TP
.B darkAquaHighContrast
Dark Accessibility appearance. (macOS 10.14+)
.TP
.B vibrantLightHighContrast
Light vibrancy Accessibility appearance.
(macOS 10.14+)
.TP
.B vibrantDarkHighContrast
Dark vibrancy Accessibility appearance.
(macOS 10.14+)
.UNINDENT
.TP
.B \fB\-\-macos\-title\-bar\-material=<material>\fP
Sets the material of the title bar (default: titlebar). All deprecated
materials should not be used on macOS 10.14+ because their functionality
is not guaranteed. Not all combinations of materials and
\fB\-\-macos\-title\-bar\-appearance\fP appearances make sense or are unique.
Materials that are not supported by you current macOS version fall back to
the default value.
macOS and cocoa\-cb only
.sp
\fB<material>\fP can be one of the following:
.INDENT 7.0
.TP
.B titlebar
The standard macOS titel bar material.
.TP
.B selection
The standard macOS selection material.
.TP
.B menu
The standard macOS menu material. (macOS 10.11+)
.TP
.B popover
The standard macOS popover material. (macOS 10.11+)
.TP
.B sidebar
The standard macOS sidebar material. (macOS 10.11+)
.TP
.B headerView
The standard macOS header view material.
(macOS 10.14+)
.TP
.B sheet
The standard macOS sheet material. (macOS 10.14+)
.TP
.B windowBackground
The standard macOS window background material.
(macOS 10.14+)
.TP
.B hudWindow
The standard macOS hudWindow material. (macOS 10.14+)
.TP
.B fullScreen
The standard macOS full screen material.
(macOS 10.14+)
.TP
.B toolTip
The standard macOS tool tip material. (macOS 10.14+)
.TP
.B contentBackground
The standard macOS content background material.
(macOS 10.14+)
.TP
.B underWindowBackground
The standard macOS under window background material.
(macOS 10.14+)
.TP
.B underPageBackground
The standard macOS under page background material.
(deprecated in macOS 10.14+)
.TP
.B dark
The standard macOS dark material.
(deprecated in macOS 10.14+)
.TP
.B light
The standard macOS light material.
(macOS 10.14+)
.TP
.B mediumLight
The standard macOS mediumLight material.
(macOS 10.11+, deprecated in macOS 10.14+)
.TP
.B ultraDark
The standard macOS ultraDark material.
(macOS 10.11+ deprecated in macOS 10.14+)
.UNINDENT
.TP
.B \fB\-\-macos\-title\-bar\-color=<color>\fP
Sets the color of the title bar (default: completely transparent). Is
influenced by \fB\-\-macos\-title\-bar\-appearance\fP and
\fB\-\-macos\-title\-bar\-material\fP\&.
See \fB\-\-sub\-color\fP for color syntax.
.TP
.B \fB\-\-macos\-fs\-animation\-duration=<default|0\-1000>\fP
Sets the fullscreen resize animation duration in ms (default: default).
The default value is slightly less than the system\(aqs animation duration
(500ms) to prevent some problems when the end of an async animation happens
at the same time as the end of the system wide fullscreen animation. Setting
anything higher than 500ms will only prematurely cancel the resize animation
after the system wide animation ended. The upper limit is still set at
1000ms since it\(aqs possible that Apple or the user changes the system
defaults. Anything higher than 1000ms though seems too long and shouldn\(aqt be
set anyway.
OS X and cocoa\-cb only
.TP
.B \fB\-\-android\-surface\-size=<WxH>\fP
Set dimensions of the rendering surface used by the Android gpu context.
Needs to be set by the embedding application if the dimensions change during
runtime (i.e. if the device is rotated), via the surfaceChanged callback.
.sp
Android with \fB\-\-gpu\-context=android\fP only.
.TP
.B \fB\-\-gpu\-sw\fP
Continue even if a software renderer is detected.
.TP
.B \fB\-\-gpu\-context=<sys>\fP
The value \fBauto\fP (the default) selects the GPU context. You can also pass
\fBhelp\fP to get a complete list of compiled in backends (sorted by
autoprobe order).
.INDENT 7.0
.TP
.B auto
auto\-select (default)
.TP
.B cocoa
Cocoa/OS X (deprecated, use \-\-vo=libmpv instead)
.TP
.B win
Win32/WGL
.TP
.B winvk
VK_KHR_win32_surface
.TP
.B angle
Direct3D11 through the OpenGL ES translation layer ANGLE. This supports
almost everything the \fBwin\fP backend does (if the ANGLE build is new
enough).
.TP
.B dxinterop (experimental)
Win32, using WGL for rendering and Direct3D 9Ex for presentation. Works
on Nvidia and AMD. Newer Intel chips with the latest drivers may also
work.
.TP
.B d3d11
Win32, with native Direct3D 11 rendering.
.TP
.B x11
X11/GLX
.TP
.B x11vk
VK_KHR_xlib_surface
.TP
.B wayland
Wayland/EGL
.TP
.B waylandvk
VK_KHR_wayland_surface
.TP
.B drm
DRM/EGL
.TP
.B x11egl
X11/EGL
.TP
.B android
Android/EGL. Requires \fB\-\-wid\fP be set to an \fBandroid.view.Surface\fP\&.
.UNINDENT
.TP
.B \fB\-\-gpu\-api=<type>\fP
Controls which type of graphics APIs will be accepted:
.INDENT 7.0
.TP
.B auto
Use any available API (default)
.TP
.B opengl
Allow only OpenGL (requires OpenGL 2.1+ or GLES 2.0+)
.TP
.B vulkan
Allow only Vulkan (requires a valid/working \fB\-\-spirv\-compiler\fP)
.TP
.B d3d11
Allow only \fB\-\-gpu\-context=d3d11\fP
.UNINDENT
.TP
.B \fB\-\-opengl\-es=<mode>\fP
Controls which type of OpenGL context will be accepted:
.INDENT 7.0
.TP
.B auto
Allow all types of OpenGL (default)
.TP
.B yes
Only allow GLES
.TP
.B no
Only allow desktop/core GL
.UNINDENT
.TP
.B \fB\-\-opengl\-restrict=<version>\fP
Restricts all OpenGL versions above a certain version. Versions are encoded
in hundreds, i.e. OpenGL 4.5 \-> 450. As an example, \-\-opengl\-restrict=300
would restrict OpenGL 3.0 and higher, effectively only allowing 2.x
contexts. Note that this only imposes a limit on context creation APIs, the
actual OpenGL context may still have a higher OpenGL version. (Default: 0)
.TP
.B \fB\-\-fbo\-format=<fmt>\fP
Selects the internal format of textures used for FBOs. The format can
influence performance and quality of the video output. \fBfmt\fP can be one
of: rgb8, rgb10, rgb10_a2, rgb16, rgb16f, rgb32f, rgba12, rgba16, rgba16f,
rgba16hf, rgba32f.
.sp
Default: \fBauto\fP, which first attempts to utilize 16bit float
(rgba16f, rgba16hf), and falls back to rgba16 if those are not available.
Finally, attempts to utilize rgb10_a2 or rgba8 if all of the previous formats
are not available.
.TP
.B \fB\-\-gamma\-factor=<0.1..2.0>\fP
Set an additional raw gamma factor (default: 1.0). If gamma is adjusted in
other ways (like with the \fB\-\-gamma\fP option or key bindings and the
\fBgamma\fP property), the value is multiplied with the other gamma value.
.sp
Recommended values based on the environmental brightness:
.INDENT 7.0
.TP
.B 1.0
Pitch black or dimly lit room (default)
.TP
.B 1.1
Moderately lit room, home
.TP
.B 1.2
Brightly illuminated room, office
.UNINDENT
.sp
NOTE: This is based around the assumptions of typical movie content, which
contains an implicit end\-to\-end of about 0.8 from scene to display. For
bright environments it can be useful to cancel that out.
.TP
.B \fB\-\-gamma\-auto\fP
Automatically corrects the gamma value depending on ambient lighting
conditions (adding a gamma boost for bright rooms).
.sp
With ambient illuminance of 16 lux, mpv will pick the 1.0 gamma value (no
boost), and slightly increase the boost up until 1.2 for 256 lux.
.sp
NOTE: Only implemented on OS X.
.TP
.B \fB\-\-target\-prim=<value>\fP
Specifies the primaries of the display. Video colors will be adapted to
this colorspace when ICC color management is not being used. Valid values
are:
.INDENT 7.0
.TP
.B auto
Disable any adaptation, except for atypical color spaces. Specifically,
wide/unusual gamuts get automatically adapted to BT.709, while standard
gamut (i.e. BT.601 and BT.709) content is not touched. (default)
.TP
.B bt.470m
ITU\-R BT.470 M
.TP
.B bt.601\-525
ITU\-R BT.601 (525\-line SD systems, eg. NTSC), SMPTE 170M/240M
.TP
.B bt.601\-625
ITU\-R BT.601 (625\-line SD systems, eg. PAL/SECAM), ITU\-R BT.470 B/G
.TP
.B bt.709
ITU\-R BT.709 (HD), IEC 61966\-2\-4 (sRGB), SMPTE RP177 Annex B
.TP
.B bt.2020
ITU\-R BT.2020 (UHD)
.TP
.B apple
Apple RGB
.TP
.B adobe
Adobe RGB (1998)
.TP
.B prophoto
ProPhoto RGB (ROMM)
.TP
.B cie1931
CIE 1931 RGB (not to be confused with CIE XYZ)
.TP
.B dci\-p3
DCI\-P3 (Digital Cinema Colorspace), SMPTE RP431\-2
.TP
.B v\-gamut
Panasonic V\-Gamut (VARICAM) primaries
.TP
.B s\-gamut
Sony S\-Gamut (S\-Log) primaries
.UNINDENT
.TP
.B \fB\-\-target\-trc=<value>\fP
Specifies the transfer characteristics (gamma) of the display. Video colors
will be adjusted to this curve when ICC color management is not being used.
Valid values are:
.INDENT 7.0
.TP
.B auto
Disable any adaptation, except for atypical transfers. Specifically,
HDR or linear light source material gets automatically converted to
gamma 2.2, while SDR content is not touched. (default)
.TP
.B bt.1886
ITU\-R BT.1886 curve (assuming infinite contrast)
.TP
.B srgb
IEC 61966\-2\-4 (sRGB)
.TP
.B linear
Linear light output
.TP
.B gamma1.8
Pure power curve (gamma 1.8), also used for Apple RGB
.TP
.B gamma2.0
Pure power curve (gamma 2.0)
.TP
.B gamma2.2
Pure power curve (gamma 2.2)
.TP
.B gamma2.4
Pure power curve (gamma 2.4)
.TP
.B gamma2.6
Pure power curve (gamma 2.6)
.TP
.B gamma2.8
Pure power curve (gamma 2.8), also used for BT.470\-BG
.TP
.B prophoto
ProPhoto RGB (ROMM)
.TP
.B pq
ITU\-R BT.2100 PQ (Perceptual quantizer) curve, aka SMPTE ST2084
.TP
.B hlg
ITU\-R BT.2100 HLG (Hybrid Log\-gamma) curve, aka ARIB STD\-B67
.TP
.B v\-log
Panasonic V\-Log (VARICAM) curve
.TP
.B s\-log1
Sony S\-Log1 curve
.TP
.B s\-log2
Sony S\-Log2 curve
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
When using HDR output formats, mpv will encode to the specified
curve but it will not set any HDMI flags or other signalling that might
be required for the target device to correctly display the HDR signal.
The user should independently guarantee this before using these signal
formats for display.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-target\-peak=<auto|nits>\fP
Specifies the measured peak brightness of the output display, in cd/m^2
(AKA nits). The interpretation of this brightness depends on the configured
\fB\-\-target\-trc\fP\&. In all cases, it imposes a limit on the signal values
that will be sent to the display. If the source exceeds this brightness
level, a tone mapping filter will be inserted. For HLG, it has the
additional effect of parametrizing the inverse OOTF, in order to get
colorimetrically consistent results with the mastering display. For SDR, or
when using an ICC (profile (\fB\-\-icc\-profile\fP), setting this to a value
above 100 essentially causes the display to be treated as if it were an HDR
display in disguise. (See the note below)
.sp
In \fBauto\fP mode (the default), the chosen peak is an appropriate value
based on the TRC in use. For SDR curves, it uses 100. For HDR curves, it
uses 100 * the transfer function\(aqs nominal peak.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
When using an SDR transfer function, this is normally not needed, and
setting it may lead to very unexpected results. The one time it \fIis\fP
useful is if you want to calibrate a HDR display using traditional
transfer functions and calibration equipment. In such cases, you can
set your HDR display to a high brightness such as 800 cd/m^2, and then
calibrate it to a standard curve like gamma2.8. Setting this value to
800 would then instruct mpv to essentially treat it as an HDR display
with the given peak. This may be a good alternative in environments
where PQ or HLG input to the display is not possible, and makes it
possible to use HDR displays with mpv regardless of operating system
support for HDMI HDR metadata.
.sp
In such a configuration, we highly recommend setting \fB\-\-tone\-mapping\fP
to \fBmobius\fP or even \fBclip\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-tone\-mapping=<value>\fP
Specifies the algorithm used for tone\-mapping images onto the target
display. This is relevant for both HDR\->SDR conversion as well as gamut
reduction (e.g. playing back BT.2020 content on a standard gamut display).
Valid values are:
.INDENT 7.0
.TP
.B clip
Hard\-clip any out\-of\-range values. Use this when you care about
perfect color accuracy for in\-range values at the cost of completely
distorting out\-of\-range values. Not generally recommended.
.TP
.B mobius
Generalization of Reinhard to a Möbius transform with linear section.
Smoothly maps out\-of\-range values while retaining contrast and colors
for in\-range material as much as possible. Use this when you care about
color accuracy more than detail preservation. This is somewhere in
between \fBclip\fP and \fBreinhard\fP, depending on the value of
\fB\-\-tone\-mapping\-param\fP\&.
.TP
.B reinhard
Reinhard tone mapping algorithm. Very simple continuous curve.
Preserves overall image brightness but uses nonlinear contrast, which
results in flattening of details and degradation in color accuracy.
.TP
.B hable
Similar to \fBreinhard\fP but preserves both dark and bright details
better (slightly sigmoidal), at the cost of slightly darkening /
desaturating everything. Developed by John Hable for use in video
games. Use this when you care about detail preservation more than
color/brightness accuracy. This is roughly equivalent to
\fB\-\-tone\-mapping=reinhard \-\-tone\-mapping\-param=0.24\fP\&. If possible,
you should also enable \fB\-\-hdr\-compute\-peak\fP for the best results.
(Default)
.TP
.B gamma
Fits a logarithmic transfer between the tone curves.
.TP
.B linear
Linearly stretches the entire reference gamut to (a linear multiple of)
the display.
.UNINDENT
.TP
.B \fB\-\-tone\-mapping\-param=<value>\fP
Set tone mapping parameters. By default, this is set to the special string
\fBdefault\fP, which maps to an algorithm\-specific default value. Ignored if
the tone mapping algorithm is not tunable. This affects the following tone
mapping algorithms:
.INDENT 7.0
.TP
.B clip
Specifies an extra linear coefficient to multiply into the signal
before clipping. Defaults to 1.0.
.TP
.B mobius
Specifies the transition point from linear to mobius transform. Every
value below this point is guaranteed to be mapped 1:1. The higher the
value, the more accurate the result will be, at the cost of losing
bright details. Defaults to 0.3, which due to the steep initial slope
still preserves in\-range colors fairly accurately.
.TP
.B reinhard
Specifies the local contrast coefficient at the display peak. Defaults
to 0.5, which means that in\-gamut values will be about half as bright
as when clipping.
.TP
.B gamma
Specifies the exponent of the function. Defaults to 1.8.
.TP
.B linear
Specifies the scale factor to use while stretching. Defaults to 1.0.
.UNINDENT
.TP
.B \fB\-\-tone\-mapping\-max\-boost=<1.0..10.0>\fP
Upper limit for how much the tone mapping algorithm is allowed to boost
the average brightness by over\-exposing the image. The default value of 1.0
allows no additional brightness boost. A value of 2.0 would allow
over\-exposing by a factor of 2, and so on. Raising this setting can help
reveal details that would otherwise be hidden in dark scenes, but raising
it too high will make dark scenes appear unnaturally bright.
.TP
.B \fB\-\-hdr\-compute\-peak=<auto|yes|no>\fP
Compute the HDR peak and frame average brightness per\-frame instead of
relying on tagged metadata. These values are averaged over local regions as
well as over several frames to prevent the value from jittering around too
much. This option basically gives you dynamic, per\-scene tone mapping.
Requires compute shaders, which is a fairly recent OpenGL feature, and will
probably also perform horribly on some drivers, so enable at your own risk.
The special value \fBauto\fP (default) will enable HDR peak computation
automatically if compute shaders and SSBOs are supported.
.TP
.B \fB\-\-hdr\-peak\-decay\-rate=<1.0..1000.0>\fP
The decay rate used for the HDR peak detection algorithm (default: 100.0).
This is only relevant when \fB\-\-hdr\-compute\-peak\fP is enabled. Higher values
make the peak decay more slowly, leading to more stable values at the cost
of more "eye adaptation"\-like effects (although this is mitigated somewhat
by \fB\-\-hdr\-scene\-threshold\fP). A value of 1.0 (the lowest possible) disables
all averaging, meaning each frame\(aqs value is used directly as measured,
but doing this is not recommended for "noisy" sources since it may lead
to excessive flicker. (In signal theory terms, this controls the time
constant "tau" of an IIR low pass filter)
.TP
.B \fB\-\-hdr\-scene\-threshold\-low=<0.0..100.0>\fP, \fB\-\-hdr\-scene\-threshold\-high=<0.0..100.0>\fP
The lower and upper thresholds (in dB) for a brightness difference
to be considered a scene change (default: 5.5 low, 10.0 high). This is only
relevant when \fB\-\-hdr\-compute\-peak\fP is enabled. Normally, small
fluctuations in the frame brightness are compensated for by the peak
averaging mechanism, but for large jumps in the brightness this can result
in the frame remaining too bright or too dark for up to several seconds,
depending on the value of \fB\-\-hdr\-peak\-decay\-rate\fP\&. To counteract this,
when the brightness between the running average and the current frame
exceeds the low threshold, mpv will make the averaging filter more
aggressive, up to the limit of the high threshold (at which point the
filter becomes instant).
.TP
.B \fB\-\-tone\-mapping\-desaturate=<0.0..1.0>\fP
Apply desaturation for highlights (default: 0.75). The parameter controls
the strength of the desaturation curve. A value of 0.0 completely disables
it, while a value of 1.0 means that overly bright colors will tend towards
white. (This is not always the case, especially not for highlights that are
near primary colors)
.sp
Values in between apply progressively more/less aggressive desaturation.
This setting helps prevent unnaturally oversaturated colors for
super\-highlights, by (smoothly) turning them into less saturated (per
channel tone mapped) colors instead. This makes images feel more natural,
at the cost of chromatic distortions for out\-of\-range colors. The default
value of 0.75 provides a good balance. Setting this to 0.0 preserves the
chromatic accuracy of the tone mapping process.
.TP
.B \fB\-\-tone\-mapping\-desaturate\-exponent=<0.0..20.0>\fP
This setting controls the exponent of the desaturation curve, which
controls how bright a color needs to be in order to start being
desaturated. The default of 1.5 provides a reasonable balance.  Decreasing
this exponent makes the curve more aggressive.
.TP
.B \fB\-\-gamut\-warning\fP
If enabled, mpv will mark all clipped/out\-of\-gamut pixels that exceed a
given threshold (currently hard\-coded to 101%). The affected pixels will be
inverted to make them stand out. Note: This option applies after the
effects of all of mpv\(aqs color space transformation / tone mapping options,
so it\(aqs a good idea to combine this with \fB\-\-tone\-mapping=clip\fP and use
\fB\-\-target\-prim\fP to set the gamut to simulate. For example,
\fB\-\-target\-prim=bt.709\fP would make mpv highlight all pixels that exceed the
gamut of a standard gamut (sRGB) display. This option also does not work
well with ICC profiles, since the 3DLUTs are always generated against the
source color space and have chromatically\-accurate clipping built in.
.TP
.B \fB\-\-use\-embedded\-icc\-profile\fP
Load the embedded ICC profile contained in media files such as PNG images.
(Default: yes). Note that this option only works when also using a display
ICC profile (\fB\-\-icc\-profile\fP or \fB\-\-icc\-profile\-auto\fP), and also
requires LittleCMS 2 support.
.TP
.B \fB\-\-icc\-profile=<file>\fP
Load an ICC profile and use it to transform video RGB to screen output.
Needs LittleCMS 2 support compiled in. This option overrides the
\fB\-\-target\-prim\fP, \fB\-\-target\-trc\fP and \fB\-\-icc\-profile\-auto\fP options.
.TP
.B \fB\-\-icc\-profile\-auto\fP
Automatically select the ICC display profile currently specified by the
display settings of the operating system.
.sp
NOTE: On Windows, the default profile must be an ICC profile. WCS profiles
are not supported.
.sp
Applications using libmpv with the render API need to provide the ICC
profile via \fBMPV_RENDER_PARAM_ICC_PROFILE\fP\&.
.TP
.B \fB\-\-icc\-cache\-dir=<dirname>\fP
Store and load the 3D LUTs created from the ICC profile in this directory.
This can be used to speed up loading, since LittleCMS 2 can take a while to
create a 3D LUT. Note that these files contain uncompressed LUTs. Their
size depends on the \fB\-\-icc\-3dlut\-size\fP, and can be very big.
.sp
NOTE: This is not cleaned automatically, so old, unused cache files may
stick around indefinitely.
.TP
.B \fB\-\-icc\-intent=<value>\fP
Specifies the ICC intent used for the color transformation (when using
\fB\-\-icc\-profile\fP).
.INDENT 7.0
.TP
.B 0
perceptual
.TP
.B 1
relative colorimetric (default)
.TP
.B 2
saturation
.TP
.B 3
absolute colorimetric
.UNINDENT
.TP
.B \fB\-\-icc\-3dlut\-size=<r>x<g>x<b>\fP
Size of the 3D LUT generated from the ICC profile in each dimension.
Default is 64x64x64. Sizes may range from 2 to 512.
.TP
.B \fB\-\-icc\-contrast=<0\-1000000|inf>\fP
Specifies an upper limit on the target device\(aqs contrast ratio. This is
detected automatically from the profile if possible, but for some profiles
it might be missing, causing the contrast to be assumed as infinite. As a
result, video may appear darker than intended. This only affects BT.1886
content. The default of 0 means no limit if the detected contrast is less
than 100000, and limits to 1000 otherwise. Use \fB\-\-icc\-contrast=inf\fP to
preserve the infinite contrast (most likely when using OLED displays).
.TP
.B \fB\-\-blend\-subtitles=<yes|video|no>\fP
Blend subtitles directly onto upscaled video frames, before interpolation
and/or color management (default: no). Enabling this causes subtitles to be
affected by \fB\-\-icc\-profile\fP, \fB\-\-target\-prim\fP, \fB\-\-target\-trc\fP,
\fB\-\-interpolation\fP, \fB\-\-gamma\-factor\fP and \fB\-\-glsl\-shaders\fP\&. It also
increases subtitle performance when using \fB\-\-interpolation\fP\&.
.sp
The downside of enabling this is that it restricts subtitles to the visible
portion of the video, so you can\(aqt have subtitles exist in the black
margins below a video (for example).
.sp
If \fBvideo\fP is selected, the behavior is similar to \fByes\fP, but subs are
drawn at the video\(aqs native resolution, and scaled along with the video.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This changes the way subtitle colors are handled. Normally,
subtitle colors are assumed to be in sRGB and color managed as
such. Enabling this makes them treated as being in the video\(aqs
color space instead. This is good if you want things like
softsubbed ASS signs to match the video colors, but may cause
SRT subtitles or similar to look slightly off.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-alpha=<blend\-tiles|blend|yes|no>\fP
Decides what to do if the input has an alpha component.
.INDENT 7.0
.TP
.B blend\-tiles
Blend the frame against a 16x16 gray/white tiles background (default).
.TP
.B blend
Blend the frame against the background color (\fB\-\-background\fP, normally
black).
.TP
.B yes
Try to create a framebuffer with alpha component. This only makes sense
if the video contains alpha information (which is extremely rare). May
not be supported on all platforms. If alpha framebuffers are
unavailable, it silently falls back on a normal framebuffer. Note that
if you set the \fB\-\-fbo\-format\fP option to a non\-default value, a
format with alpha must be specified, or this won\(aqt work.
This does not work on X11 with EGL and Mesa (freedesktop bug 67676).
.TP
.B no
Ignore alpha component.
.UNINDENT
.TP
.B \fB\-\-opengl\-rectangle\-textures\fP
Force use of rectangle textures (default: no). Normally this shouldn\(aqt have
any advantages over normal textures. Note that hardware decoding overrides
this flag. Could be removed any time.
.TP
.B \fB\-\-background=<color>\fP
Color used to draw parts of the mpv window not covered by video. See
\fB\-\-osd\-color\fP option how colors are defined.
.TP
.B \fB\-\-gpu\-tex\-pad\-x\fP, \fB\-\-gpu\-tex\-pad\-y\fP
Enlarge the video source textures by this many pixels. For debugging only
(normally textures are sized exactly, but due to hardware decoding interop
we may have to deal with additional padding, which can be tested with these
options). Could be removed any time.
.TP
.B \fB\-\-opengl\-early\-flush=<yes|no|auto>\fP
Call \fBglFlush()\fP after rendering a frame and before attempting to display
it (default: auto). Can fix stuttering in some cases, in other cases
probably causes it. The \fBauto\fP mode will call \fBglFlush()\fP only if
the renderer is going to wait for a while after rendering, instead of
flipping GL front and backbuffers immediately (i.e. it doesn\(aqt call it
in display\-sync mode).
.sp
On OSX this is always deactivated because it only causes performance
problems and other regressions.
.TP
.B \fB\-\-gpu\-dumb\-mode=<yes|no|auto>\fP
This mode is extremely restricted, and will disable most extended
features. That includes high quality scalers and custom shaders!
.sp
It is intended for hardware that does not support FBOs (including GLES,
which supports it insufficiently), or to get some more performance out of
bad or old hardware.
.sp
This mode is forced automatically if needed, and this option is mostly
useful for debugging. The default of \fBauto\fP will enable it automatically
if nothing uses features which require FBOs.
.sp
This option might be silently removed in the future.
.TP
.B \fB\-\-gpu\-shader\-cache\-dir=<dirname>\fP
Store and load compiled GLSL shaders in this directory. Normally, shader
compilation is very fast, so this is usually not needed. It mostly matters
for GPU APIs that require internally recompiling shaders to other languages,
for example anything based on ANGLE or Vulkan. Enabling this can improve
startup performance on these platforms.
.sp
NOTE: This is not cleaned automatically, so old, unused cache files may
stick around indefinitely.
.UNINDENT
.SS Miscellaneous
.INDENT 0.0
.TP
.B \fB\-\-display\-tags=tag1,tags2,...\fP
Set the list of tags that should be displayed on the terminal. Tags that
are in the list, but are not present in the played file, will not be shown.
If a value ends with \fB*\fP, all tags are matched by prefix (though there
is no general globbing). Just passing \fB*\fP essentially filtering.
.sp
The default includes a common list of tags, call mpv with \fB\-\-list\-options\fP
to see it.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-mc=<seconds/frame>\fP
Maximum A\-V sync correction per frame (in seconds)
.TP
.B \fB\-\-autosync=<factor>\fP
Gradually adjusts the A/V sync based on audio delay measurements.
Specifying \fB\-\-autosync=0\fP, the default, will cause frame timing to be
based entirely on audio delay measurements. Specifying \fB\-\-autosync=1\fP
will do the same, but will subtly change the A/V correction algorithm. An
uneven video framerate in a video which plays fine with \fB\-\-no\-audio\fP can
often be helped by setting this to an integer value greater than 1. The
higher the value, the closer the timing will be to \fB\-\-no\-audio\fP\&. Try
\fB\-\-autosync=30\fP to smooth out problems with sound drivers which do not
implement a perfect audio delay measurement. With this value, if large A/V
sync offsets occur, they will only take about 1 or 2 seconds to settle
out. This delay in reaction time to sudden A/V offsets should be the only
side effect of turning this option on, for all sound drivers.
.TP
.B \fB\-\-video\-timing\-offset=<seconds>\fP
Control how long before video display target time the frame should be
rendered (default: 0.050). If a video frame should be displayed at a
certain time, the VO will start rendering the frame earlier, and then will
perform a blocking wait until the display time, and only then "swap" the
frame to display. The rendering cannot start before the previous frame is
displayed, so this value is implicitly limited by the video framerate. With
normal video frame rates, the default value will ensure that rendering is
always immediately started after the previous frame was displayed. On the
other hand, setting a too high value can reduce responsiveness with low
FPS value.
.sp
For client API users using the render API (or the deprecated \fBopengl\-cb\fP
API), this option is interesting, because you can stop the render API
from limiting your FPS (see \fBmpv_render_context_render()\fP documentation).
.sp
This applies only to audio timing modes (e.g. \fB\-\-video\-sync=audio\fP). In
other modes (\fB\-\-video\-sync=display\-...\fP), video timing relies on vsync
blocking, and this option is not used.
.TP
.B \fB\-\-video\-sync=<audio|...>\fP
How the player synchronizes audio and video.
.sp
If you use this option, you usually want to set it to \fBdisplay\-resample\fP
to enable a timing mode that tries to not skip or repeat frames when for
example playing 24fps video on a 24Hz screen.
.sp
The modes starting with \fBdisplay\-\fP try to output video frames completely
synchronously to the display, using the detected display vertical refresh
rate as a hint how fast frames will be displayed on average. These modes
change video speed slightly to match the display. See \fB\-\-video\-sync\-...\fP
options for fine tuning. The robustness of this mode is further reduced by
making a some idealized assumptions, which may not always apply in reality.
Behavior can depend on the VO and the system\(aqs video and audio drivers.
Media files must use constant framerate. Section\-wise VFR might work as well
with some container formats (but not e.g. mkv).
.sp
Under some circumstances, the player automatically reverts to \fBaudio\fP mode
for some time or permanently. This can happen on very low framerate video,
or if the framerate cannot be detected.
.sp
Also in display\-sync modes it can happen that interruptions to video
playback (such as toggling fullscreen mode, or simply resizing the window)
will skip the video frames that should have been displayed, while \fBaudio\fP
mode will display them after the renderer has resumed (typically resulting
in a short A/V desync and the video "catching up").
.sp
Before mpv 0.30.0, there was a fallback to \fBaudio\fP mode on severe A/V
desync. This was changed for the sake of not sporadically stopping. Now,
\fBdisplay\-desync\fP does what it promises and may desync with audio by an
arbitrary amount, until it is manually fixed with a seek.
.sp
These modes also require a vsync blocked presentation mode. For OpenGL, this
translates to \fB\-\-opengl\-swapinterval=1\fP\&. For Vulkan, it translates to
\fB\-\-vulkan\-swap\-mode=fifo\fP (or \fBfifo\-relaxed\fP).
.sp
The modes with \fBdesync\fP in their names do not attempt to keep audio/video
in sync. They will slowly (or quickly) desync, until e.g. the next seek
happens. These modes are meant for testing, not serious use.
.INDENT 7.0
.TP
.B audio
Time video frames to audio. This is the most robust
mode, because the player doesn\(aqt have to assume anything
about how the display behaves. The disadvantage is that
it can lead to occasional frame drops or repeats. If
audio is disabled, this uses the system clock. This is
the default mode.
.TP
.B display\-resample
Resample audio to match the video. This mode will also
try to adjust audio speed to compensate for other drift.
(This means it will play the audio at a different speed
every once in a while to reduce the A/V difference.)
.TP
.B display\-resample\-vdrop
Resample audio to match the video. Drop video
frames to compensate for drift.
.TP
.B display\-resample\-desync
Like the previous mode, but no A/V compensation.
.TP
.B display\-vdrop
Drop or repeat video frames to compensate desyncing
video. (Although it should have the same effects as
\fBaudio\fP, the implementation is very different.)
.TP
.B display\-adrop
Drop or repeat audio data to compensate desyncing
video. See \fB\-\-video\-sync\-adrop\-size\fP\&. This mode will
cause severe audio artifacts if the real monitor
refresh rate is too different from the reported or
forced rate.
.TP
.B display\-desync
Sync video to display, and let audio play on its own.
.TP
.B desync
Sync video according to system clock, and let audio play
on its own.
.UNINDENT
.TP
.B \fB\-\-video\-sync\-max\-video\-change=<value>\fP
Maximum speed difference in percent that is applied to video with
\fB\-\-video\-sync=display\-...\fP (default: 1). Display sync mode will be
disabled if the monitor and video refresh way do not match within the
given range. It tries multiples as well: playing 30 fps video on a 60 Hz
screen will duplicate every second frame. Playing 24 fps video on a 60 Hz
screen will play video in a 2\-3\-2\-3\-... pattern.
.sp
The default settings are not loose enough to speed up 23.976 fps video to
25 fps. We consider the pitch change too extreme to allow this behavior
by default. Set this option to a value of \fB5\fP to enable it.
.sp
Note that in the \fB\-\-video\-sync=display\-resample\fP mode, audio speed will
additionally be changed by a small amount if necessary for A/V sync. See
\fB\-\-video\-sync\-max\-audio\-change\fP\&.
.TP
.B \fB\-\-video\-sync\-max\-audio\-change=<value>\fP
Maximum \fIadditional\fP speed difference in percent that is applied to audio
with \fB\-\-video\-sync=display\-...\fP (default: 0.125). Normally, the player
plays the audio at the speed of the video. But if the difference between
audio and video position is too high, e.g. due to drift or other timing
errors, it will attempt to speed up or slow down audio by this additional
factor. Too low values could lead to video frame dropping or repeating if
the A/V desync cannot be compensated, too high values could lead to chaotic
frame dropping due to the audio "overshooting" and skipping multiple video
frames before the sync logic can react.
.TP
.B \fB\-\-video\-sync\-adrop\-size=<value>\fP
For the \fB\-\-video\-sync=display\-adrop\fP mode. This mode duplicates/drops
audio data to keep audio in sync with video. To avoid audio artifacts on
jitter (which would add/remove samples all the time), this is done in
relatively large, fixed units, controlled by this option. The unit is
seconds.
.TP
.B \fB\-\-mf\-fps=<value>\fP
Framerate used when decoding from multiple PNG or JPEG files with \fBmf://\fP
(default: 1).
.TP
.B \fB\-\-mf\-type=<value>\fP
Input file type for \fBmf://\fP (available: jpeg, png, tga, sgi). By default,
this is guessed from the file extension.
.TP
.B \fB\-\-stream\-dump=<destination\-filename>\fP
Instead of playing a file, read its byte stream and write it to the given
destination file. The destination is overwritten. Can be useful to test
network\-related behavior.
.TP
.B \fB\-\-stream\-lavf\-o=opt1=value1,opt2=value2,...\fP
Set AVOptions on streams opened with libavformat. Unknown or misspelled
options are silently ignored. (They are mentioned in the terminal output
in verbose mode, i.e. \fB\-\-v\fP\&. In general we can\(aqt print errors, because
other options such as e.g. user agent are not available with all protocols,
and printing errors for unknown options would end up being too noisy.)
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-vo\-mmcss\-profile=<name>\fP
(Windows only.)
Set the MMCSS profile for the video renderer thread (default: \fBPlayback\fP).
.TP
.B \fB\-\-priority=<prio>\fP
(Windows only.)
Set process priority for mpv according to the predefined priorities
available under Windows.
.sp
Possible values of \fB<prio>\fP:
idle|belownormal|normal|abovenormal|high|realtime
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
Using realtime priority can cause system lockup.
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-force\-media\-title=<string>\fP
Force the contents of the \fBmedia\-title\fP property to this value. Useful
for scripts which want to set a title, without overriding the user\(aqs
setting in \fB\-\-title\fP\&.
.TP
.B \fB\-\-external\-files=<file\-list>\fP
Load a file and add all of its tracks. This is useful to play different
files together (for example audio from one file, video from another), or
for advanced \fB\-\-lavfi\-complex\fP used (like playing two video files at
the same time).
.sp
Unlike \fB\-\-sub\-files\fP and \fB\-\-audio\-files\fP, this includes all tracks, and
does not cause default stream selection over the "proper" file. This makes
it slightly less intrusive. (In mpv 0.28.0 and before, this was not quite
strictly enforced.)
.sp
This is a path list option. See \fI\%List Options\fP for details.
.TP
.B \fB\-\-external\-file=<file>\fP
CLI/config file only alias for \fB\-\-external\-files\-append\fP\&. Each use of this
option will add a new external files.
.TP
.B \fB\-\-autoload\-files=<yes|no>\fP
Automatically load/select external files (default: yes).
.sp
If set to \fBno\fP, then do not automatically load external files as specified
by \fB\-\-sub\-auto\fP and \fB\-\-audio\-file\-auto\fP\&. If external files are forcibly
added (like with \fB\-\-sub\-files\fP), they will not be auto\-selected.
.sp
This does not affect playlist expansion, redirection, or other loading of
referenced files like with ordered chapters.
.TP
.B \fB\-\-record\-file=<file>\fP
Deprecated, use \fB\-\-stream\-record\fP, or the \fBdump\-cache\fP command.
.sp
Record the current stream to the given target file. The target file will
always be overwritten without asking.
.sp
This was deprecated because it isn\(aqt very nice to use. For one, seeking
while this is enabled will be directly reflected in the output, which was
not useful and annoying.
.TP
.B \fB\-\-stream\-record=<file>\fP
Write received/read data from the demuxer to the given output file. The
output file will always be overwritten without asking. The output format
is determined by the extension of the output file.
.sp
Switching streams or seeking during recording might result in recording
being stopped and/or broken files. Use with care.
.sp
Seeking outside of the demuxer cache will result in "skips" in the output
file, but seeking within  the demuxer cache should not affect recording. One
exception is when you seek back far enough to exceed the forward buffering
size, in which case the cache stops actively reading. This will return in
dropped data if it\(aqs a live stream.
.sp
If this is set at runtime, the old file is closed, and the new file is
opened. Note that this will write only data that is appended at the end of
the cache, and the already cached data cannot be written. You can try the
\fBdump\-cache\fP command as an alternative.
.sp
External files (\fB\-\-audio\-file\fP etc.) are ignored by this, it works on the
"main" file only. Using this with files using ordered chapters or EDL files
will also not work correctly in general.
.sp
There are some glitches with this because it uses FFmpeg\(aqs libavformat for
writing the output file. For example, it\(aqs typical that it will only work if
the output format is the same as the input format. This is the case even if
it works with the \fBffmpeg\fP tool. One reason for this is that \fBffmpeg\fP
and its libraries contain certain hacks and workarounds for these issues,
that are unavailable to outside users.
.sp
This replaces \fB\-\-record\-file\fP\&. It is similar to the ancient/removed
\fB\-\-stream\-capture\fP/\fB\-capture\fP options, and provides better behavior in
most cases (i.e. actually works).
.TP
.B \fB\-\-lavfi\-complex=<string>\fP
Set a "complex" libavfilter filter, which means a single filter graph can
take input from multiple source audio and video tracks. The graph can result
in a single audio or video output (or both).
.sp
Currently, the filter graph labels are used to select the participating
input tracks and audio/video output. The following rules apply:
.INDENT 7.0
.IP \(bu 2
A label of the form \fBaidN\fP selects audio track N as input (e.g.
\fBaid1\fP).
.IP \(bu 2
A label of the form \fBvidN\fP selects video track N as input.
.IP \(bu 2
A label named \fBao\fP will be connected to the audio output.
.IP \(bu 2
A label named \fBvo\fP will be connected to the video output.
.UNINDENT
.sp
Each label can be used only once. If you want to use e.g. an audio stream
for multiple filters, you need to use the \fBasplit\fP filter. Multiple
video or audio outputs are not possible, but you can use filters to merge
them into one.
.sp
It\(aqs not possible to change the tracks connected to the filter at runtime,
unless you explicitly change the \fBlavfi\-complex\fP property and set new
track assignments. When the graph is changed, the track selection is changed
according to the used labels as well.
.sp
Other tracks, as long as they\(aqre not connected to the filter, and the
corresponding output is not connected to the filter, can still be freely
changed with the normal methods.
.sp
Note that the normal filter chains (\fB\-\-af\fP, \fB\-\-vf\fP) are applied between
the complex graphs (e.g. \fBao\fP label) and the actual output.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB\-\-lavfi\-complex=\(aq[aid1] [aid2] amix [ao]\(aq\fP
Play audio track 1 and 2 at the same time.
.IP \(bu 2
\fB\-\-lavfi\-complex=\(aq[vid1] [vid2] vstack [vo]\(aq\fP
Stack video track 1 and 2 and play them at the same time. Note that
both tracks need to have the same width, or filter initialization
will fail (you can add \fBscale\fP filters before the \fBvstack\fP filter
to fix the size).
To load a video track from another file, you can use
\fB\-\-external\-file=other.mkv\fP\&.
.IP \(bu 2
\fB\-\-lavfi\-complex=\(aq[aid1] asplit [t1] [ao] ; [t1] showvolume [t2] ; [vid1] [t2] overlay [vo]\(aq\fP
Play audio track 1, and overlay the measured volume for each speaker
over video track 1.
.IP \(bu 2
\fBnull:// \-\-lavfi\-complex=\(aqlife [vo]\(aq\fP
A libavfilter source\-only filter (Conways\(aq Life Game).
.UNINDENT
.UNINDENT
.UNINDENT
.sp
See the FFmpeg libavfilter documentation for details on the available
filters.
.TP
.B \fB\-\-metadata\-codepage=<codepage>\fP
Codepage for various input metadata (default: \fButf\-8\fP). This affects how
file tags, chapter titles, etc. are interpreted. You can for example set
this to \fBauto\fP to enable autodetection of the codepage. (This is not the
default because non\-UTF\-8 codepages are an obscure fringe use\-case.)
.sp
See \fB\-\-sub\-codepage\fP option on how codepages are specified and further
details regarding autodetection and codepage conversion. (The underlying
code is the same.)
.sp
Conversion is not applied to metadata that is updated at runtime.
.UNINDENT
.SS Debugging
.INDENT 0.0
.TP
.B \fB\-\-unittest=<name>\fP
Run an internal unit test. There are multiple, and the name specifies which.
.sp
The special value \fBall\-simple\fP runs all tests which do not need further
setup (other arguments and such). Some tests may need additional arguments
to do anything useful.
.sp
On success, the player binary exits with exit status 0, otherwise it returns
with an undefined non\-0 exit status (it may crash or abort itself on test
failures).
.sp
This is only enabled if built with \fB\-\-enable\-tests\fP, and should normally
be enabled and used by developers only.
.UNINDENT
.SH AUDIO OUTPUT DRIVERS
.sp
Audio output drivers are interfaces to different audio output facilities. The
syntax is:
.INDENT 0.0
.TP
.B \fB\-\-ao=<driver1,driver2,...[,]>\fP
Specify a priority list of audio output drivers to be used.
.UNINDENT
.sp
If the list has a trailing \(aq,\(aq, mpv will fall back on drivers not contained
in the list.
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
See \fB\-\-ao=help\fP for a list of compiled\-in audio output drivers. The
driver \fB\-\-ao=alsa\fP is preferred. \fB\-\-ao=pulse\fP is preferred on systems
where PulseAudio is used. On BSD systems, \fB\-\-ao=oss\fP or \fB\-\-ao=sndio\fP
may work (the latter being experimental).
.UNINDENT
.UNINDENT
.sp
Available audio output drivers are:
.INDENT 0.0
.TP
.B \fBalsa\fP (Linux only)
ALSA audio output driver
.sp
See \fI\%ALSA audio output options\fP for options specific to this AO.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
To get multichannel/surround audio, use \fB\-\-audio\-channels=auto\fP\&. The
default for this option is \fBauto\-safe\fP, which makes this audio output
explicitly reject multichannel output, as there is no way to detect
whether a certain channel layout is actually supported.
.sp
You can also try \fI\%using the upmix plugin\fP\&.
This setup enables multichannel audio on the \fBdefault\fP device
with automatic upmixing with shared access, so playing stereo
and multichannel audio at the same time will work as expected.
.UNINDENT
.UNINDENT
.TP
.B \fBoss\fP
OSS audio output driver
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-oss\-mixer\-device\fP
Sets the audio mixer device (default: \fB/dev/mixer\fP).
.TP
.B \fB\-\-oss\-mixer\-channel\fP
Sets the audio mixer channel (default: \fBpcm\fP). Other valid values
include \fBvol, pcm, line\fP\&. For a complete list of options look for
\fBSOUND_DEVICE_NAMES\fP in \fB/usr/include/linux/soundcard.h\fP\&.
.UNINDENT
.TP
.B \fBjack\fP
JACK (Jack Audio Connection Kit) audio output driver.
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-jack\-port=<name>\fP
Connects to the ports with the given name (default: physical ports).
.TP
.B \fB\-\-jack\-name=<client>\fP
Client name that is passed to JACK (default: \fBmpv\fP). Useful
if you want to have certain connections established automatically.
.TP
.B \fB\-\-jack\-autostart=<yes|no>\fP
Automatically start jackd if necessary (default: disabled). Note that
this tends to be unreliable and will flood stdout with server messages.
.TP
.B \fB\-\-jack\-connect=<yes|no>\fP
Automatically create connections to output ports (default: enabled).
When enabled, the maximum number of output channels will be limited to
the number of available output ports.
.TP
.B \fB\-\-jack\-std\-channel\-layout=<waveext|any>\fP
Select the standard channel layout (default: waveext). JACK itself has no
notion of channel layouts (i.e. assigning which speaker a given
channel is supposed to map to) \- it just takes whatever the application
outputs, and reroutes it to whatever the user defines. This means the
user and the application are in charge of dealing with the channel
layout. \fBwaveext\fP uses WAVE_FORMAT_EXTENSIBLE order, which, even
though it was defined by Microsoft, is the standard on many systems.
The value \fBany\fP makes JACK accept whatever comes from the audio
filter chain, regardless of channel layout and without reordering. This
mode is probably not very useful, other than for debugging or when used
with fixed setups.
.UNINDENT
.TP
.B \fBcoreaudio\fP (Mac OS X only)
Native Mac OS X audio output driver using AudioUnits and the CoreAudio
sound server.
.sp
Automatically redirects to \fBcoreaudio_exclusive\fP when playing compressed
formats.
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-coreaudio\-change\-physical\-format=<yes|no>\fP
Change the physical format to one similar to the requested audio format
(default: no). This has the advantage that multichannel audio output
will actually work. The disadvantage is that it will change the
system\-wide audio settings. This is equivalent to changing the \fBFormat\fP
setting in the \fBAudio Devices\fP dialog in the \fBAudio MIDI Setup\fP
utility. Note that this does not affect the selected speaker setup.
.TP
.B \fB\-\-coreaudio\-spdif\-hack=<yes|no>\fP
Try to pass through AC3/DTS data as PCM. This is useful for drivers
which do not report AC3 support. It converts the AC3 data to float,
and assumes the driver will do the inverse conversion, which means
a typical A/V receiver will pick it up as compressed IEC framed AC3
stream, ignoring that it\(aqs marked as PCM. This disables normal AC3
passthrough (even if the device reports it as supported). Use with
extreme care.
.UNINDENT
.TP
.B \fBcoreaudio_exclusive\fP (Mac OS X only)
Native Mac OS X audio output driver using direct device access and
exclusive mode (bypasses the sound server).
.TP
.B \fBopenal\fP
OpenAL audio output driver
.INDENT 7.0
.TP
.B \fB\-\-openal\-num\-buffers=<2\-128>\fP
Specify the number of audio buffers to use. Lower values are better for
lower CPU usage. Default: 4.
.TP
.B \fB\-\-openal\-num\-samples=<256\-32768>\fP
Specify the number of complete samples to use for each buffer. Higher
values are better for lower CPU usage. Default: 8192.
.TP
.B \fB\-\-openal\-direct\-channels=<yes|no>\fP
Enable OpenAL Soft\(aqs direct channel extension when available to avoid
tinting the sound with ambisonics or HRTF.
Channels are dropped when when they are not available as downmixing
will be disabled. Default: no.
.UNINDENT
.TP
.B \fBpulse\fP
PulseAudio audio output driver
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-pulse\-host=<host>\fP
Specify the host to use. An empty <host> string uses a local connection,
"localhost" uses network transfer (most likely not what you want).
.TP
.B \fB\-\-pulse\-buffer=<1\-2000|native>\fP
Set the audio buffer size in milliseconds. A higher value buffers
more data, and has a lower probability of buffer underruns. A smaller
value makes the audio stream react faster, e.g. to playback speed
changes.
.TP
.B \fB\-\-pulse\-latency\-hacks=<yes|no>\fP
Enable hacks to workaround PulseAudio timing bugs (default: no). If
enabled, mpv will do elaborate latency calculations on its own. If
disabled, it will use PulseAudio automatically updated timing
information. Disabling this might help with e.g. networked audio or
some plugins, while enabling it might help in some unknown situations
(it used to be required to get good behavior on old PulseAudio versions).
.sp
If you have stuttering video when using pulse, try to enable this
option. (Or try to update PulseAudio.)
.TP
.B \fB\-\-pulse\-allow\-suspended=<yes|no>\fP
Allow mpv to use PulseAudio even if the sink is suspended (default: no).
Can be useful if PulseAudio is running as a bridge to jack and mpv has its sink\-input set to the one jack is using.
.UNINDENT
.TP
.B \fBsdl\fP
SDL 1.2+ audio output driver. Should work on any platform supported by SDL
1.2, but may require the \fBSDL_AUDIODRIVER\fP environment variable to be set
appropriately for your system.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is for compatibility with extremely foreign
environments, such as systems where none of the other drivers
are available.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-sdl\-buflen=<length>\fP
Sets the audio buffer length in seconds. Is used only as a hint by the
sound system. Playing a file with \fB\-v\fP will show the requested and
obtained exact buffer size. A value of 0 selects the sound system
default.
.TP
.B \fB\-\-sdl\-bufcnt=<count>\fP
Sets the number of extra audio buffers in mpv. Usually needs not be
changed.
.UNINDENT
.TP
.B \fBnull\fP
Produces no audio output but maintains video playback speed. You can use
\fB\-\-ao=null \-\-ao\-null\-untimed\fP for benchmarking.
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-ao\-null\-untimed\fP
Do not simulate timing of a perfect audio device. This means audio
decoding will go as fast as possible, instead of timing it to the
system clock.
.TP
.B \fB\-\-ao\-null\-buffer\fP
Simulated buffer length in seconds.
.TP
.B \fB\-\-ao\-null\-outburst\fP
Simulated chunk size in samples.
.TP
.B \fB\-\-ao\-null\-speed\fP
Simulated audio playback speed as a multiplier. Usually, a real audio
device will not go exactly as fast as the system clock. It will deviate
just a little, and this option helps to simulate this.
.TP
.B \fB\-\-ao\-null\-latency\fP
Simulated device latency. This is additional to EOF.
.TP
.B \fB\-\-ao\-null\-broken\-eof\fP
Simulate broken audio drivers, which always add the fixed device
latency to the reported audio playback position.
.TP
.B \fB\-\-ao\-null\-broken\-delay\fP
Simulate broken audio drivers, which don\(aqt report latency correctly.
.TP
.B \fB\-\-ao\-null\-channel\-layouts\fP
If not empty, this is a \fB,\fP separated list of channel layouts the
AO allows. This can be used to test channel layout selection.
.TP
.B \fB\-\-ao\-null\-format\fP
Force the audio output format the AO will accept. If unset accepts any.
.UNINDENT
.TP
.B \fBpcm\fP
Raw PCM/WAVE file writer audio output
.sp
The following global options are supported by this audio output:
.INDENT 7.0
.TP
.B \fB\-\-ao\-pcm\-waveheader=<yes|no>\fP
Include or do not include the WAVE header (default: included). When
not included, raw PCM will be generated.
.TP
.B \fB\-\-ao\-pcm\-file=<filename>\fP
Write the sound to \fB<filename>\fP instead of the default
\fBaudiodump.wav\fP\&. If \fBno\-waveheader\fP is specified, the default is
\fBaudiodump.pcm\fP\&.
.TP
.B \fB\-\-ao\-pcm\-append=<yes|no>\fP
Append to the file, instead of overwriting it. Always use this with the
\fBno\-waveheader\fP option \- with \fBwaveheader\fP it\(aqs broken, because
it will write a WAVE header every time the file is opened.
.UNINDENT
.TP
.B \fBrsound\fP
Audio output to an RSound daemon. Use \fB\-\-audio\-device=rsound/<hostname>\fP
to set the host name (with \fB<hostname>\fP replaced, without the \fB< >\fP).
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Completely useless, unless you intend to run RSound. Not to be
confused with RoarAudio, which is something completely
different.
.UNINDENT
.UNINDENT
.TP
.B \fBsndio\fP
Audio output to the OpenBSD sndio sound system
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Experimental. There are known bugs and issues.
.UNINDENT
.UNINDENT
.sp
(Note: only supports mono, stereo, 4.0, 5.1 and 7.1 channel
layouts.)
.TP
.B \fBwasapi\fP
Audio output to the Windows Audio Session API.
.UNINDENT
.SH VIDEO OUTPUT DRIVERS
.sp
Video output drivers are interfaces to different video output facilities. The
syntax is:
.INDENT 0.0
.TP
.B \fB\-\-vo=<driver1,driver2,...[,]>\fP
Specify a priority list of video output drivers to be used.
.UNINDENT
.sp
If the list has a trailing \fB,\fP, mpv will fall back on drivers not contained
in the list.
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
See \fB\-\-vo=help\fP for a list of compiled\-in video output drivers.
.sp
The recommended output driver is \fB\-\-vo=gpu\fP, which is the default. All
other drivers are for compatibility or special purposes. If the default
does not work, it will fallback to other drivers (in the same order as
listed by \fB\-\-vo=help\fP).
.UNINDENT
.UNINDENT
.sp
Available video output drivers are:
.INDENT 0.0
.TP
.B \fBxv\fP (X11 only)
Uses the XVideo extension to enable hardware\-accelerated display. This is
the most compatible VO on X, but may be low\-quality, and has issues with
OSD and subtitle display.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is for compatibility with old systems.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-xv\-adaptor=<number>\fP
Select a specific XVideo adapter (check xvinfo results).
.TP
.B \fB\-\-xv\-port=<number>\fP
Select a specific XVideo port.
.TP
.B \fB\-\-xv\-ck=<cur|use|set>\fP
Select the source from which the color key is taken (default: cur).
.INDENT 7.0
.TP
.B cur
The default takes the color key currently set in Xv.
.TP
.B use
Use but do not set the color key from mpv (use the \fB\-\-colorkey\fP
option to change it).
.TP
.B set
Same as use but also sets the supplied color key.
.UNINDENT
.TP
.B \fB\-\-xv\-ck\-method=<none|man|bg|auto>\fP
Sets the color key drawing method (default: man).
.INDENT 7.0
.TP
.B none
Disables color\-keying.
.TP
.B man
Draw the color key manually (reduces flicker in some cases).
.TP
.B bg
Set the color key as window background.
.TP
.B auto
Let Xv draw the color key.
.UNINDENT
.TP
.B \fB\-\-xv\-colorkey=<number>\fP
Changes the color key to an RGB value of your choice. \fB0x000000\fP is
black and \fB0xffffff\fP is white.
.TP
.B \fB\-\-xv\-buffers=<number>\fP
Number of image buffers to use for the internal ringbuffer (default: 2).
Increasing this will use more memory, but might help with the X server
not responding quickly enough if video FPS is close to or higher than
the display refresh rate.
.UNINDENT
.TP
.B \fBx11\fP (X11 only)
Shared memory video output driver without hardware acceleration that works
whenever X11 is present.
.sp
Since mpv 0.30.0, you may need to use \fB\-\-profile=sw\-fast\fP to get decent
performance.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This is a fallback only, and should not be normally used.
.UNINDENT
.UNINDENT
.TP
.B \fBvdpau\fP (X11 only)
Uses the VDPAU interface to display and optionally also decode video.
Hardware decoding is used with \fB\-\-hwdec=vdpau\fP\&.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Earlier versions of mpv (and MPlayer, mplayer2) provided sub\-options
to tune vdpau post\-processing, like \fBdeint\fP, \fBsharpen\fP, \fBdenoise\fP,
\fBchroma\-deint\fP, \fBpullup\fP, \fBhqscaling\fP\&. These sub\-options are
deprecated, and you should use the \fBvdpaupp\fP video filter instead.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-vo\-vdpau\-sharpen=<\-1\-1>\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.sp
For positive values, apply a sharpening algorithm to the video, for
negative values a blurring algorithm (default: 0).
.TP
.B \fB\-\-vo\-vdpau\-denoise=<0\-1>\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.sp
Apply a noise reduction algorithm to the video (default: 0; no noise
reduction).
.TP
.B \fB\-\-vo\-vdpau\-deint=<\-4\-4>\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.sp
Select deinterlacing mode (default: 0). In older versions (as well as
MPlayer/mplayer2) you could use this option to enable deinterlacing.
This doesn\(aqt work anymore, and deinterlacing is enabled with either
the \fBd\fP key (by default mapped to the command \fBcycle deinterlace\fP),
or the \fB\-\-deinterlace\fP option. Also, to select the default deint mode,
you should use something like \fB\-\-vf\-defaults=vdpaupp:deint\-mode=temporal\fP
instead of this sub\-option.
.INDENT 7.0
.TP
.B 0
Pick the \fBvdpaupp\fP video filter default, which corresponds to 3.
.TP
.B 1
Show only first field.
.TP
.B 2
Bob deinterlacing.
.TP
.B 3
Motion\-adaptive temporal deinterlacing. May lead to A/V desync
with slow video hardware and/or high resolution.
.TP
.B 4
Motion\-adaptive temporal deinterlacing with edge\-guided spatial
interpolation. Needs fast video hardware.
.UNINDENT
.TP
.B \fB\-\-vo\-vdpau\-chroma\-deint\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.sp
Makes temporal deinterlacers operate both on luma and chroma (default).
Use no\-chroma\-deint to solely use luma and speed up advanced
deinterlacing. Useful with slow video memory.
.TP
.B \fB\-\-vo\-vdpau\-pullup\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.sp
Try to apply inverse telecine, needs motion adaptive temporal
deinterlacing.
.TP
.B \fB\-\-vo\-vdpau\-hqscaling=<0\-9>\fP
(Deprecated. See note about \fBvdpaupp\fP\&.)
.INDENT 7.0
.TP
.B 0
Use default VDPAU scaling (default).
.TP
.B 1\-9
Apply high quality VDPAU scaling (needs capable hardware).
.UNINDENT
.TP
.B \fB\-\-vo\-vdpau\-fps=<number>\fP
Override autodetected display refresh rate value (the value is needed
for framedrop to allow video playback rates higher than display
refresh rate, and for vsync\-aware frame timing adjustments). Default 0
means use autodetected value. A positive value is interpreted as a
refresh rate in Hz and overrides the autodetected value. A negative
value disables all timing adjustment and framedrop logic.
.TP
.B \fB\-\-vo\-vdpau\-composite\-detect\fP
NVIDIA\(aqs current VDPAU implementation behaves somewhat differently
under a compositing window manager and does not give accurate frame
timing information. With this option enabled, the player tries to
detect whether a compositing window manager is active. If one is
detected, the player disables timing adjustments as if the user had
specified \fBfps=\-1\fP (as they would be based on incorrect input). This
means timing is somewhat less accurate than without compositing, but
with the composited mode behavior of the NVIDIA driver, there is no
hard playback speed limit even without the disabled logic. Enabled by
default, use \fB\-\-vo\-vdpau\-composite\-detect=no\fP to disable.
.TP
.B \fB\-\-vo\-vdpau\-queuetime\-windowed=<number>\fP and \fBqueuetime\-fs=<number>\fP
Use VDPAU\(aqs presentation queue functionality to queue future video
frame changes at most this many milliseconds in advance (default: 50).
See below for additional information.
.TP
.B \fB\-\-vo\-vdpau\-output\-surfaces=<2\-15>\fP
Allocate this many output surfaces to display video frames (default:
3). See below for additional information.
.TP
.B \fB\-\-vo\-vdpau\-colorkey=<#RRGGBB|#AARRGGBB>\fP
Set the VDPAU presentation queue background color, which in practice
is the colorkey used if VDPAU operates in overlay mode (default:
\fB#020507\fP, some shade of black). If the alpha component of this value
is 0, the default VDPAU colorkey will be used instead (which is usually
green).
.TP
.B \fB\-\-vo\-vdpau\-force\-yuv\fP
Never accept RGBA input. This means mpv will insert a filter to convert
to a YUV format before the VO. Sometimes useful to force availability
of certain YUV\-only features, like video equalizer or deinterlacing.
.UNINDENT
.sp
Using the VDPAU frame queuing functionality controlled by the queuetime
options makes mpv\(aqs frame flip timing less sensitive to system CPU load and
allows mpv to start decoding the next frame(s) slightly earlier, which can
reduce jitter caused by individual slow\-to\-decode frames. However, the
NVIDIA graphics drivers can make other window behavior such as window moves
choppy if VDPAU is using the blit queue (mainly happens if you have the
composite extension enabled) and this feature is active. If this happens on
your system and it bothers you then you can set the queuetime value to 0 to
disable this feature. The settings to use in windowed and fullscreen mode
are separate because there should be no reason to disable this for
fullscreen mode (as the driver issue should not affect the video itself).
.sp
You can queue more frames ahead by increasing the queuetime values and the
\fBoutput_surfaces\fP count (to ensure enough surfaces to buffer video for a
certain time ahead you need at least as many surfaces as the video has
frames during that time, plus two). This could help make video smoother in
some cases. The main downsides are increased video RAM requirements for
the surfaces and laggier display response to user commands (display
changes only become visible some time after they\(aqre queued). The graphics
driver implementation may also have limits on the length of maximum
queuing time or number of queued surfaces that work well or at all.
.TP
.B \fBdirect3d\fP (Windows only)
Video output driver that uses the Direct3D interface.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is for compatibility with systems that don\(aqt provide
proper OpenGL drivers, and where ANGLE does not perform well.
.UNINDENT
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Before to 0.21.0, \fBdirect3d_shaders\fP and \fBdirect3d\fP were
different, with \fBdirect3d\fP not using shader by default. Now
both use shaders by default, and \fBdirect3d_shaders\fP is a
deprecated alias. Use the \fB\-\-vo\-direct3d\-prefer\-stretchrect\fP
or the \fB\-\-vo\-direct3d\-disable\-shaders\fP options to get the old
behavior of \fBdirect3d\fP\&.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-vo\-direct3d\-prefer\-stretchrect\fP
Use \fBIDirect3DDevice9::StretchRect\fP over other methods if possible.
.TP
.B \fB\-\-vo\-direct3d\-disable\-stretchrect\fP
Never render the video using \fBIDirect3DDevice9::StretchRect\fP\&.
.TP
.B \fB\-\-vo\-direct3d\-disable\-textures\fP
Never render the video using D3D texture rendering. Rendering with
textures + shader will still be allowed. Add \fBdisable\-shaders\fP to
completely disable video rendering with textures.
.TP
.B \fB\-\-vo\-direct3d\-disable\-shaders\fP
Never use shaders when rendering video.
.TP
.B \fB\-\-vo\-direct3d\-only\-8bit\fP
Never render YUV video with more than 8 bits per component.
Using this flag will force software conversion to 8\-bit.
.TP
.B \fB\-\-vo\-direct3d\-disable\-texture\-align\fP
Normally texture sizes are always aligned to 16. With this option
enabled, the video texture will always have exactly the same size as
the video itself.
.UNINDENT
.sp
Debug options. These might be incorrect, might be removed in the future,
might crash, might cause slow downs, etc. Contact the developers if you
actually need any of these for performance or proper operation.
.INDENT 7.0
.TP
.B \fB\-\-vo\-direct3d\-force\-power\-of\-2\fP
Always force textures to power of 2, even if the device reports
non\-power\-of\-2 texture sizes as supported.
.TP
.B \fB\-\-vo\-direct3d\-texture\-memory=<mode>\fP
Only affects operation with shaders/texturing enabled, and (E)OSD.
Possible values:
.INDENT 7.0
.TP
.B \fBdefault\fP (default)
Use \fBD3DPOOL_DEFAULT\fP, with a \fBD3DPOOL_SYSTEMMEM\fP texture for
locking. If the driver supports \fBD3DDEVCAPS_TEXTURESYSTEMMEMORY\fP,
\fBD3DPOOL_SYSTEMMEM\fP is used directly.
.TP
.B \fBdefault\-pool\fP
Use \fBD3DPOOL_DEFAULT\fP\&. (Like \fBdefault\fP, but never use a
shadow\-texture.)
.TP
.B \fBdefault\-pool\-shadow\fP
Use \fBD3DPOOL_DEFAULT\fP, with a \fBD3DPOOL_SYSTEMMEM\fP texture for
locking. (Like \fBdefault\fP, but always force the shadow\-texture.)
.TP
.B \fBmanaged\fP
Use \fBD3DPOOL_MANAGED\fP\&.
.TP
.B \fBscratch\fP
Use \fBD3DPOOL_SCRATCH\fP, with a \fBD3DPOOL_SYSTEMMEM\fP texture for
locking.
.UNINDENT
.TP
.B \fB\-\-vo\-direct3d\-swap\-discard\fP
Use \fBD3DSWAPEFFECT_DISCARD\fP, which might be faster.
Might be slower too, as it must(?) clear every frame.
.TP
.B \fB\-\-vo\-direct3d\-exact\-backbuffer\fP
Always resize the backbuffer to window size.
.UNINDENT
.TP
.B \fBgpu\fP
General purpose, customizable, GPU\-accelerated video output driver. It
supports extended scaling methods, dithering, color management, custom
shaders, HDR, and more.
.sp
See \fI\%GPU renderer options\fP for options specific to this VO.
.sp
By default, it tries to use fast and fail\-safe settings. Use the
\fBgpu\-hq\fP profile to use this driver with defaults set to high quality
rendering. The profile can be applied with \fB\-\-profile=gpu\-hq\fP and its
contents can be viewed with \fB\-\-show\-profile=gpu\-hq\fP\&.
.sp
This VO abstracts over several possible graphics APIs and windowing
contexts, which can be influenced using the \fB\-\-gpu\-api\fP and
\fB\-\-gpu\-context\fP options.
.sp
Hardware decoding over OpenGL\-interop is supported to some degree. Note
that in this mode, some corner case might not be gracefully handled, and
color space conversion and chroma upsampling is generally in the hand of
the hardware decoder APIs.
.sp
\fBgpu\fP makes use of FBOs by default. Sometimes you can achieve better
quality or performance by changing the \fB\-\-gpu\-fbo\-format\fP option to
\fBrgb16f\fP, \fBrgb32f\fP or \fBrgb\fP\&. Known problems include Mesa/Intel not
accepting \fBrgb16\fP, Mesa sometimes not being compiled with float texture
support, and some OS X setups being very slow with \fBrgb16\fP but fast
with \fBrgb32f\fP\&. If you have problems, you can also try enabling the
\fB\-\-gpu\-dumb\-mode=yes\fP option.
.TP
.B \fBsdl\fP
SDL 2.0+ Render video output driver, depending on system with or without
hardware acceleration. Should work on all platforms supported by SDL 2.0.
For tuning, refer to your copy of the file \fBSDL_hints.h\fP\&.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is for compatibility with systems that don\(aqt provide
proper graphics drivers.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-sdl\-sw\fP
Continue even if a software renderer is detected.
.TP
.B \fB\-\-sdl\-switch\-mode\fP
Instruct SDL to switch the monitor video mode when going fullscreen.
.UNINDENT
.TP
.B \fBvaapi\fP
Intel VA API video output driver with support for hardware decoding. Note
that there is absolutely no reason to use this, other than compatibility.
This is low quality, and has issues with OSD.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is for compatibility with crappy systems. You can
use vaapi hardware decoding with \fB\-\-vo=gpu\fP too.
.UNINDENT
.UNINDENT
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-vo\-vaapi\-scaling=<algorithm>\fP
.INDENT 7.0
.TP
.B default
Driver default (mpv default as well).
.TP
.B fast
Fast, but low quality.
.TP
.B hq
Unspecified driver dependent high\-quality scaling, slow.
.TP
.B nla
\fBnon\-linear anamorphic scaling\fP
.UNINDENT
.TP
.B \fB\-\-vo\-vaapi\-deint\-mode=<mode>\fP
Select deinterlacing algorithm. Note that by default deinterlacing is
initially always off, and needs to be enabled with the \fBd\fP key
(default key binding for \fBcycle deinterlace\fP).
.sp
This option doesn\(aqt apply if libva supports video post processing (vpp).
In this case, the default for \fBdeint\-mode\fP is \fBno\fP, and enabling
deinterlacing via user interaction using the methods mentioned above
actually inserts the \fBvavpp\fP video filter. If vpp is not actually
supported with the libva backend in use, you can use this option to
forcibly enable VO based deinterlacing.
.INDENT 7.0
.TP
.B no
Don\(aqt allow deinterlacing (default for newer libva).
.TP
.B first\-field
Show only first field.
.TP
.B bob
bob deinterlacing (default for older libva).
.UNINDENT
.TP
.B \fB\-\-vo\-vaapi\-scaled\-osd=<yes|no>\fP
If enabled, then the OSD is rendered at video resolution and scaled to
display resolution. By default, this is disabled, and the OSD is
rendered at display resolution if the driver supports it.
.UNINDENT
.TP
.B \fBnull\fP
Produces no video output. Useful for benchmarking.
.sp
Usually, it\(aqs better to disable video with \fB\-\-no\-video\fP instead.
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-vo\-null\-fps=<value>\fP
Simulate display FPS. This artificially limits how many frames the
VO accepts per second.
.UNINDENT
.TP
.B \fBcaca\fP
Color ASCII art video output driver that works on a text console.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This driver is a joke.
.UNINDENT
.UNINDENT
.TP
.B \fBtct\fP
Color Unicode art video output driver that works on a text console.
Depends on support of true color by modern terminals to display the images
at full color range. On Windows it requires an ansi terminal such as mintty.
.sp
Since mpv 0.30.0, you may need to use \fB\-\-profile=sw\-fast\fP to get decent
performance.
.INDENT 7.0
.TP
.B \fB\-\-vo\-tct\-algo=<algo>\fP
Select how to write the pixels to the terminal.
.INDENT 7.0
.TP
.B half\-blocks
Uses unicode LOWER HALF BLOCK character to achieve higher vertical
resolution. (Default.)
.TP
.B plain
Uses spaces. Causes vertical resolution to drop twofolds, but in
theory works in more places.
.UNINDENT
.TP
.B \fB\-\-vo\-tct\-width=<width>\fP  \fB\-\-vo\-tct\-height=<height>\fP
Assume the terminal has the specified character width and/or height.
These default to 80x25 if the terminal size cannot be determined.
.TP
.B \fB\-\-vo\-tct\-256=<yes|no>\fP (default: no)
Use 256 colors \- for terminals which don\(aqt support true color.
.UNINDENT
.TP
.B \fBimage\fP
Output each frame into an image file in the current directory. Each file
takes the frame number padded with leading zeros as name.
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-vo\-image\-format=<format>\fP
Select the image file format.
.INDENT 7.0
.TP
.B jpg
JPEG files, extension .jpg. (Default.)
.TP
.B jpeg
JPEG files, extension .jpeg.
.TP
.B png
PNG files.
.TP
.B webp
WebP files.
.UNINDENT
.TP
.B \fB\-\-vo\-image\-png\-compression=<0\-9>\fP
PNG compression factor (speed vs. file size tradeoff) (default: 7)
.TP
.B \fB\-\-vo\-image\-png\-filter=<0\-5>\fP
Filter applied prior to PNG compression (0 = none; 1 = sub; 2 = up;
3 = average; 4 = Paeth; 5 = mixed) (default: 5)
.TP
.B \fB\-\-vo\-image\-jpeg\-quality=<0\-100>\fP
JPEG quality factor (default: 90)
.TP
.B \fB\-\-vo\-image\-jpeg\-optimize=<0\-100>\fP
JPEG optimization factor (default: 100)
.TP
.B \fB\-\-vo\-image\-webp\-lossless=<yes|no>\fP
Enable writing lossless WebP files (default: no)
.TP
.B \fB\-\-vo\-image\-webp\-quality=<0\-100>\fP
WebP quality (default: 75)
.TP
.B \fB\-\-vo\-image\-webp\-compression=<0\-6>\fP
WebP compression factor (default: 4)
.TP
.B \fB\-\-vo\-image\-outdir=<dirname>\fP
Specify the directory to save the image files to (default: \fB\&./\fP).
.UNINDENT
.TP
.B \fBlibmpv\fP
For use with libmpv direct embedding. As a special case, on OS X it
is used like a normal VO within mpv (cocoa\-cb). Otherwise useless in any
other contexts.
(See \fB<mpv/render.h>\fP\&.)
.sp
This also supports many of the options the \fBgpu\fP VO has, depending on the
backend.
.TP
.B \fBrpi\fP (Raspberry Pi)
Native video output on the Raspberry Pi using the MMAL API.
.sp
This is deprecated. Use \fB\-\-vo=gpu\fP instead, which is the default and
provides the same functionality. The \fBrpi\fP VO will be removed in
mpv 0.23.0. Its functionality was folded into \-\-vo=gpu, which now uses
RPI hardware decoding by treating it as a hardware overlay (without applying
GL filtering). Also to be changed in 0.23.0: the \-\-fs flag will be reset to
"no" by default (like on the other platforms).
.sp
The following deprecated global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-rpi\-display=<number>\fP
Select the display number on which the video overlay should be shown
(default: 0).
.TP
.B \fB\-\-rpi\-layer=<number>\fP
Select the dispmanx layer on which the video overlay should be shown
(default: \-10). Note that mpv will also use the 2 layers above the
selected layer, to handle the window background and OSD. Actual video
rendering will happen on the layer above the selected layer.
.TP
.B \fB\-\-rpi\-background=<yes|no>\fP
Whether to render a black background behind the video (default: no).
Normally it\(aqs better to kill the console framebuffer instead, which
gives better performance.
.TP
.B \fB\-\-rpi\-osd=<yes|no>\fP
Enabled by default. If disabled with \fBno\fP, no OSD layer is created.
This also means there will be no subtitles rendered.
.UNINDENT
.TP
.B \fBdrm\fP (Direct Rendering Manager)
Video output driver using Kernel Mode Setting / Direct Rendering Manager.
Should be used when one doesn\(aqt want to install full\-blown graphical
environment (e.g. no X). Does not support hardware acceleration (if you
need this, check the \fBdrm\fP backend for \fBgpu\fP VO).
.sp
Since mpv 0.30.0, you may need to use \fB\-\-profile=sw\-fast\fP to get decent
performance.
.sp
The following global options are supported by this video output:
.INDENT 7.0
.TP
.B \fB\-\-drm\-connector=[<gpu_number>.]<name>\fP
Select the connector to use (usually this is a monitor.) If \fB<name>\fP
is empty or \fBauto\fP, mpv renders the output on the first available
connector. Use \fB\-\-drm\-connector=help\fP to get a list of available
connectors. When using multiple graphic cards, use the \fB<gpu_number>\fP
argument to disambiguate.
(default: empty)
.TP
.B \fB\-\-drm\-mode=<preferred|highest|N|WxH[@R]>\fP
Mode to use (resolution and frame rate).
Possible values:
.INDENT 7.0
.TP
.B preferred
Use the preferred mode for the screen on the selected
connector. (default)
.TP
.B highest
Use the mode with the highest resolution available on the
selected connector.
.TP
.B N
Select mode by index.
.TP
.B WxH[@R]
Specify mode by width, height, and optionally refresh rate.
In case several modes match, selects the mode that comes
first in the EDID list of modes.
.UNINDENT
.sp
Use \fB\-\-drm\-mode=help\fP to get a list of available modes for all active
connectors.
.TP
.B \fB\-\-drm\-atomic=<no|auto>\fP
Toggle use of atomic modesetting. Mostly useful for debugging.
.INDENT 7.0
.TP
.B no
Use legacy modesetting.
.TP
.B auto
Use atomic modesetting, falling back to legacy modesetting if
not available. (default)
.UNINDENT
.sp
Note: Only affects \fBgpu\-context=drm\fP\&. \fBvo=drm\fP supports legacy
modesetting only.
.TP
.B \fB\-\-drm\-draw\-plane=<primary|overlay|N>\fP
Select the DRM plane to which video and OSD is drawn to, under normal
circumstances. The plane can be specified as \fBprimary\fP, which will
pick the first applicable primary plane; \fBoverlay\fP, which will pick
the first applicable overlay plane; or by index. The index is zero
based, and related to the CRTC.
(default: primary)
.sp
When using this option with the drmprime\-drm hwdec interop, only the OSD
is rendered to this plane.
.TP
.B \fB\-\-drm\-drmprime\-video\-plane=<primary|overlay|N>\fP
Select the DRM plane to use for video with the drmprime\-drm hwdec
interop (used by e.g. the rkmpp hwdec on RockChip SoCs, and v4l2 hwdec:s
on various other SoC:s). The plane is unused otherwise. This option
accepts the same values as \fB\-\-drm\-draw\-plane\fP\&. (default: overlay)
.sp
To be able to successfully play 4K video on various SoCs you might need
to set \fB\-\-drm\-draw\-plane=overlay \-\-drm\-drmprime\-video\-plane=primary\fP
and setting \fB\-\-drm\-draw\-surface\-size=1920x1080\fP, to render the OSD at a
lower resolution (the video when handled by the hwdec will be on the
drmprime\-video plane and at full 4K resolution)
.TP
.B \fB\-\-drm\-format=<xrgb8888|xrgb2101010>\fP
Select the DRM format to use (default: xrgb8888). This allows you to
choose the bit depth of the DRM mode. xrgb8888 is your usual 24 bit per
pixel/8 bits per channel packed RGB format with 8 bits of padding.
xrgb2101010 is a packed 30 bits per pixel/10 bits per channel packed RGB
format with 2 bits of padding.
.sp
There are cases when xrgb2101010 will work with the \fBdrm\fP VO, but not
with the \fBdrm\fP backend for the \fBgpu\fP VO. This is because with the
\fBgpu\fP VO, in addition to requiring support in your DRM driver,
requires support for xrgb2101010 in your EGL driver
.TP
.B \fB\-\-drm\-draw\-surface\-size=<[WxH]>\fP
Sets the size of the surface used on the draw plane. The surface will
then be upscaled to the current screen resolution. This option can be
useful when used together with the drmprime\-drm hwdec interop at high
resolutions, as it allows scaling the draw plane (which in this case
only handles the OSD) down to a size the GPU can handle.
.sp
When used without the drmprime\-drm hwdec interop this option will just
cause the video to get rendered at a different resolution and then
scaled to screen size.
.sp
Note: this option is only available with DRM atomic support.
(default: display resolution)
.UNINDENT
.TP
.B \fBmediacodec_embed\fP (Android)
Renders \fBIMGFMT_MEDIACODEC\fP frames directly to an \fBandroid.view.Surface\fP\&.
Requires \fB\-\-hwdec=mediacodec\fP for hardware decoding, along with
\fB\-\-vo=mediacodec_embed\fP and \fB\-\-wid=(intptr_t)(*android.view.Surface)\fP\&.
.sp
Since this video output driver uses native decoding and rendering routines,
many of mpv\(aqs features (subtitle rendering, OSD/OSC, video filters, etc)
are not available with this driver.
.sp
To use hardware decoding with \fB\-\-vo=gpu\fP instead, use
\fB\-\-hwdec=mediacodec\-copy\fP along with \fB\-\-gpu\-context=android\fP\&.
.TP
.B \fBwlshm\fP (Wayland only)
Shared memory video output driver without hardware acceleration that works
whenever Wayland is present.
.sp
Since mpv 0.30.0, you may need to use \fB\-\-profile=sw\-fast\fP to get decent
performance.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This is a fallback only, and should not be normally used.
.UNINDENT
.UNINDENT
.UNINDENT
.SH AUDIO FILTERS
.sp
Audio filters allow you to modify the audio stream and its properties. The
syntax is:
.INDENT 0.0
.TP
.B \fB\-\-af=...\fP
Setup a chain of audio filters. See \fB\-\-vf\fP (\fI\%VIDEO FILTERS\fP) for the
full syntax.
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
To get a full list of available audio filters, see \fB\-\-af=help\fP\&.
.sp
Also, keep in mind that most actual filters are available via the \fBlavfi\fP
wrapper, which gives you access to most of libavfilter\(aqs filters. This
includes all filters that have been ported from MPlayer to libavfilter.
.sp
The \fB\-\-vf\fP description describes how libavfilter can be used and how to
workaround deprecated mpv filters.
.UNINDENT
.UNINDENT
.sp
See \fB\-\-vf\fP group of options for info on how \fB\-\-af\-defaults\fP, \fB\-\-af\-add\fP,
\fB\-\-af\-pre\fP, \fB\-\-af\-del\fP, \fB\-\-af\-clr\fP, and possibly others work.
.sp
Available filters are:
.INDENT 0.0
.TP
.B \fBlavcac3enc[=options]\fP
Encode multi\-channel audio to AC\-3 at runtime using libavcodec. Supports
16\-bit native\-endian input format, maximum 6 channels. The output is
big\-endian when outputting a raw AC\-3 stream, native\-endian when
outputting to S/PDIF. If the input sample rate is not 48 kHz, 44.1 kHz or
32 kHz, it will be resampled to 48 kHz.
.INDENT 7.0
.TP
.B \fBtospdif=<yes|no>\fP
Output raw AC\-3 stream if \fBno\fP, output to S/PDIF for
pass\-through if \fByes\fP (default).
.TP
.B \fBbitrate=<rate>\fP
The bitrate use for the AC\-3 stream. Set it to 384 to get 384 kbps.
.sp
The default is 640. Some receivers might not be able to handle this.
.sp
Valid values: 32, 40, 48, 56, 64, 80, 96, 112, 128,
160, 192, 224, 256, 320, 384, 448, 512, 576, 640.
.sp
The special value \fBauto\fP selects a default bitrate based on the
input channel number:
.INDENT 7.0
.TP
.B 1ch
96
.TP
.B 2ch
192
.TP
.B 3ch
224
.TP
.B 4ch
384
.TP
.B 5ch
448
.TP
.B 6ch
448
.UNINDENT
.TP
.B \fBminch=<n>\fP
If the input channel number is less than \fB<minch>\fP, the filter will
detach itself (default: 3).
.TP
.B \fBencoder=<name>\fP
Select the libavcodec encoder used. Currently, this should be an AC\-3
encoder, and using another codec will fail horribly.
.UNINDENT
.TP
.B \fBformat=format:srate:channels:out\-srate:out\-channels\fP
Does not do any format conversion itself. Rather, it may cause the
filter system to insert necessary conversion filters before or after this
filter if needed. It is primarily useful for controlling the audio format
going into other filters. To specify the format for audio output, see
\fB\-\-audio\-format\fP, \fB\-\-audio\-samplerate\fP, and \fB\-\-audio\-channels\fP\&. This
filter is able to force a particular format, whereas \fB\-\-audio\-*\fP
may be overridden by the ao based on output compatibility.
.sp
All parameters are optional. The first 3 parameters restrict what the filter
accepts as input. They will therefore cause conversion filters to be
inserted before this one.  The \fBout\-\fP parameters tell the filters or audio
outputs following this filter how to interpret the data without actually
doing a conversion. Setting these will probably just break things unless you
really know you want this for some reason, such as testing or dealing with
broken media.
.INDENT 7.0
.TP
.B \fB<format>\fP
Force conversion to this format. Use \fB\-\-af=format=format=help\fP to get
a list of valid formats.
.TP
.B \fB<srate>\fP
Force conversion to a specific sample rate. The rate is an integer,
48000 for example.
.TP
.B \fB<channels>\fP
Force mixing to a specific channel layout. See \fB\-\-audio\-channels\fP option
for possible values.
.UNINDENT
.sp
\fB<out\-srate>\fP
.sp
\fB<out\-channels>\fP
.sp
\fINOTE\fP: this filter used to be named \fBforce\fP\&. The old \fBformat\fP filter
used to do conversion itself, unlike this one which lets the filter system
handle the conversion.
.TP
.B \fBscaletempo[=option1:option2:...]\fP
Scales audio tempo without altering pitch, optionally synced to playback
speed (default).
.sp
This works by playing \(aqstride\(aq ms of audio at normal speed then consuming
\(aqstride*scale\(aq ms of input audio. It pieces the strides together by
blending \(aqoverlap\(aq% of stride with audio following the previous stride. It
optionally performs a short statistical analysis on the next \(aqsearch\(aq ms
of audio to determine the best overlap position.
.INDENT 7.0
.TP
.B \fBscale=<amount>\fP
Nominal amount to scale tempo. Scales this amount in addition to
speed. (default: 1.0)
.TP
.B \fBstride=<amount>\fP
Length in milliseconds to output each stride. Too high of a value will
cause noticeable skips at high scale amounts and an echo at low scale
amounts. Very low values will alter pitch. Increasing improves
performance. (default: 60)
.TP
.B \fBoverlap=<percent>\fP
Percentage of stride to overlap. Decreasing improves performance.
(default: .20)
.TP
.B \fBsearch=<amount>\fP
Length in milliseconds to search for best overlap position. Decreasing
improves performance greatly. On slow systems, you will probably want
to set this very low. (default: 14)
.TP
.B \fBspeed=<tempo|pitch|both|none>\fP
Set response to speed change.
.INDENT 7.0
.TP
.B tempo
Scale tempo in sync with speed (default).
.TP
.B pitch
Reverses effect of filter. Scales pitch without altering tempo.
Add this to your \fBinput.conf\fP to step by musical semi\-tones:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
[ multiply speed 0.9438743126816935
] multiply speed 1.059463094352953
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
Loses sync with video.
.UNINDENT
.UNINDENT
.TP
.B both
Scale both tempo and pitch.
.TP
.B none
Ignore speed changes.
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fBmpv \-\-af=scaletempo \-\-speed=1.2 media.ogg\fP
Would play media at 1.2x normal speed, with audio at normal
pitch. Changing playback speed would change audio tempo to match.
.TP
.B \fBmpv \-\-af=scaletempo=scale=1.2:speed=none \-\-speed=1.2 media.ogg\fP
Would play media at 1.2x normal speed, with audio at normal
pitch, but changing playback speed would have no effect on audio
tempo.
.TP
.B \fBmpv \-\-af=scaletempo=stride=30:overlap=.50:search=10 media.ogg\fP
Would tweak the quality and performance parameters.
.TP
.B \fBmpv \-\-af=scaletempo=scale=1.2:speed=pitch audio.ogg\fP
Would play media at 1.2x normal speed, with audio at normal pitch.
Changing playback speed would change pitch, leaving audio tempo at
1.2x.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fBrubberband\fP
High quality pitch correction with librubberband. This can be used in place
of \fBscaletempo\fP, and will be used to adjust audio pitch when playing
at speed different from normal. It can also be used to adjust audio pitch
without changing playback speed.
.INDENT 7.0
.TP
.B \fB<pitch\-scale>\fP
Sets the pitch scaling factor. Frequencies are multiplied by this value.
.UNINDENT
.sp
This filter has a number of additional sub\-options. You can list them with
\fBmpv \-\-af=rubberband=help\fP\&. This will also show the default values
for each option. The options are not documented here, because they are
merely passed to librubberband. Look at the librubberband documentation
to learn what each option does:
\fI\%http://breakfastquay.com/rubberband/code\-doc/classRubberBand_1_1RubberBandStretcher.html\fP
(The mapping of the mpv rubberband filter sub\-option names and values to
those of librubberband follows a simple pattern: \fB"Option" + Name + Value\fP\&.)
.sp
This filter supports the following \fBaf\-command\fP commands:
.INDENT 7.0
.TP
.B \fBset\-pitch\fP
Set the \fB<pitch\-scale>\fP argument dynamically. This can be used to
change the playback pitch at runtime. Note that speed is controlled
using the standard \fBspeed\fP property, not \fBaf\-command\fP\&.
.TP
.B \fBmultiply\-pitch <factor>\fP
Multiply the current value of \fB<pitch\-scale>\fP dynamically.  For
example: 0.5 to go down by an octave, 1.5 to go up by a perfect fifth.
If you want to go up or down by semi\-tones, use 1.059463094352953 and
0.9438743126816935
.UNINDENT
.TP
.B \fBlavfi=graph\fP
Filter audio using FFmpeg\(aqs libavfilter.
.INDENT 7.0
.TP
.B \fB<graph>\fP
Libavfilter graph. See \fBlavfi\fP video filter for details \- the graph
syntax is the same.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
Don\(aqt forget to quote libavfilter graphs as described in the lavfi
video filter section.
.UNINDENT
.UNINDENT
.TP
.B \fBo=<string>\fP
AVOptions.
.TP
.B \fBfix\-pts=<yes|no>\fP
Determine PTS based on sample count (default: no). If this is enabled,
the player won\(aqt rely on libavfilter passing through PTS accurately.
Instead, it pass a sample count as PTS to libavfilter, and compute the
PTS used by mpv based on that and the input PTS. This helps with filters
which output a recomputed PTS instead of the original PTS (including
filters which require the PTS to start at 0). mpv normally expects
filters to not touch the PTS (or only to the extent of changing frame
boundaries), so this is not the default, but it will be needed to use
broken filters. In practice, these broken filters will either cause slow
A/V desync over time (with some files), or break playback completely if
you seek or start playback from the middle of a file.
.UNINDENT
.UNINDENT
.SH VIDEO FILTERS
.sp
Video filters allow you to modify the video stream and its properties. All of
the information described in this section applies to audio filters as well
(generally using the prefix \fB\-\-af\fP instead of \fB\-\-vf\fP).
.sp
The exact syntax is:
.INDENT 0.0
.TP
.B \fB\-\-vf=<filter1[=parameter1:parameter2:...],filter2,...>\fP
Setup a chain of video filters. This consists on the filter name, and an
option list of parameters after \fB=\fP\&. The parameters are separated by
\fB:\fP (not \fB,\fP, as that starts a new filter entry).
.sp
Before the filter name, a label can be specified with \fB@name:\fP, where
name is an arbitrary user\-given name, which identifies the filter. This
is only needed if you want to toggle the filter at runtime.
.sp
A \fB!\fP before the filter name means the filter is disabled by default. It
will be skipped on filter creation. This is also useful for runtime filter
toggling.
.sp
See the \fBvf\fP command (and \fBtoggle\fP sub\-command) for further explanations
and examples.
.sp
The general filter entry syntax is:
.INDENT 7.0
.INDENT 3.5
\fB["@"<label\-name>":"] ["!"] <filter\-name> [ "=" <filter\-parameter\-list> ]\fP
.UNINDENT
.UNINDENT
.sp
or for the special "toggle" syntax (see \fBvf\fP command):
.INDENT 7.0
.INDENT 3.5
\fB"@"<label\-name>\fP
.UNINDENT
.UNINDENT
.sp
and the \fBfilter\-parameter\-list\fP:
.INDENT 7.0
.INDENT 3.5
\fB<filter\-parameter> | <filter\-parameter> "," <filter\-parameter\-list>\fP
.UNINDENT
.UNINDENT
.sp
and \fBfilter\-parameter\fP:
.INDENT 7.0
.INDENT 3.5
\fB( <param\-name> "=" <param\-value> ) | <param\-value>\fP
.UNINDENT
.UNINDENT
.sp
\fBparam\-value\fP can further be quoted in \fB[\fP / \fB]\fP in case the value
contains characters like \fB,\fP or \fB=\fP\&. This is used in particular with
the \fBlavfi\fP filter, which uses a very similar syntax as mpv (MPlayer
historically) to specify filters and their parameters.
.UNINDENT
.sp
Filters can be manipulated at run time. You can use \fB@\fP labels as described
above in combination with the \fBvf\fP command (see \fI\%COMMAND INTERFACE\fP) to get
more control over this. Initially disabled filters with \fB!\fP are useful for
this as well.
.sp
You can also set defaults for each filter. The defaults are applied before the
normal filter parameters. This is deprecated and never worked for the
libavfilter bridge.
.INDENT 0.0
.TP
.B \fB\-\-vf\-defaults=<filter1[=parameter1:parameter2:...],filter2,...>\fP
Set defaults for each filter. (Deprecated. \fB\-\-af\-defaults\fP is deprecated
as well.)
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
To get a full list of available video filters, see \fB\-\-vf=help\fP and
\fI\%http://ffmpeg.org/ffmpeg\-filters.html\fP .
.sp
Also, keep in mind that most actual filters are available via the \fBlavfi\fP
wrapper, which gives you access to most of libavfilter\(aqs filters. This
includes all filters that have been ported from MPlayer to libavfilter.
.sp
Most builtin filters are deprecated in some ways, unless they\(aqre only available
in mpv (such as filters which deal with mpv specifics, or which are
implemented in mpv only).
.sp
If a filter is not builtin, the \fBlavfi\-bridge\fP will be automatically
tried. This bridge does not support help output, and does not verify
parameters before the filter is actually used. Although the mpv syntax
is rather similar to libavfilter\(aqs, it\(aqs not the same. (Which means not
everything accepted by vf_lavfi\(aqs \fBgraph\fP option will be accepted by
\fB\-\-vf\fP\&.)
.sp
You can also prefix the filter name with \fBlavfi\-\fP to force the wrapper.
This is helpful if the filter name collides with a deprecated mpv builtin
filter. For example \fB\-\-vf=lavfi\-scale=args\fP would use libavfilter\(aqs
\fBscale\fP filter over mpv\(aqs deprecated builtin one.
.UNINDENT
.UNINDENT
.sp
Video filters are managed in lists. There are a few commands to manage the
filter list.
.INDENT 0.0
.TP
.B \fB\-\-vf\-append=filter\fP
Appends the filter given as arguments to the filter list.
.TP
.B \fB\-\-vf\-add=filter\fP
Appends the filter given as arguments to the filter list. (Passing multiple
filters is currently still possible, but deprecated.)
.TP
.B \fB\-\-vf\-pre=filter\fP
Prepends the filters given as arguments to the filter list. (Passing
multiple filters is currently still possible, but deprecated.)
.TP
.B \fB\-\-vf\-remove=filter\fP
Deletes the filter from the list. The filter can be either given the way it
was added (filter name and its full argument list), or by label (prefixed
with \fB@\fP). Matching of filters works as follows: if either of the compared
filters has a label set, only the labels are compared. If none of the
filters have a label, the filter name, arguments, and argument order are
compared. (Passing multiple filters is currently still possible, but
deprecated.)
.TP
.B \fB\-vf\-toggle=filter\fP
Add the given filter to the list if it was not present yet, or remove it
from the list if it was present. Matching of filters works as described in
\fB\-\-vf\-remove\fP\&.
.TP
.B \fB\-\-vf\-del=filter\fP
Sort of like \fB\-\-vf\-remove\fP, but also accepts an index number. Index
numbers start at 0, negative numbers address the end of the list (\-1 is the
last). Deprecated.
.TP
.B \fB\-\-vf\-clr\fP
Completely empties the filter list.
.UNINDENT
.sp
With filters that support it, you can access parameters by their name.
.INDENT 0.0
.TP
.B \fB\-\-vf=<filter>=help\fP
Prints the parameter names and parameter value ranges for a particular
filter.
.UNINDENT
.sp
Available mpv\-only filters are:
.INDENT 0.0
.TP
.B \fBformat=fmt=<value>:colormatrix=<value>:...\fP
Applies video parameter overrides, with optional conversion. By default,
this overrides the video\(aqs parameters without conversion (except for the
\fBfmt\fP parameter), but can be made to perform an appropriate conversion
with \fBconvert=yes\fP for parameters for which conversion is supported.
.INDENT 7.0
.TP
.B \fB<fmt>\fP
Image format name, e.g. rgb15, bgr24, 420p, etc. (default: don\(aqt change).
.sp
This filter always performs conversion to the given format.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
For a list of available formats, use \fB\-\-vf=format=fmt=help\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fB<convert=yes|no>\fP
Force conversion of color parameters (default: no).
.sp
If this is disabled (the default), the only conversion that is possibly
performed is format conversion if \fB<fmt>\fP is set. All other parameters
(like \fB<colormatrix>\fP) are forced without conversion. This mode is
typically useful when files have been incorrectly tagged.
.sp
If this is enabled, libswscale or zimg is used if any of the parameters
mismatch. zimg is used of the input/output image formats are supported
by mpv\(aqs zimg wrapper, and if \fB\-\-sws\-allow\-zimg=yes\fP is used. Both
libraries may not support all kinds of conversions. This typically
results in silent incorrect conversion. zimg has in many cases a better
chance of performing the conversion correctly.
.sp
In both cases, the color parameters are set on the output stage of the
image format conversion (if \fBfmt\fP was set). The difference is that
with \fBconvert=no\fP, the color parameters are not passed on to the
converter.
.sp
If input and output video parameters are the same, conversion is always
skipped.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fBmpv test.mkv \-\-vf=format:colormatrix=ycgco\fP
Results in incorrect colors (if test.mkv was tagged correctly).
.TP
.B \fBmpv test.mkv \-\-vf=format:colormatrix=ycgco:convert=yes \-\-sws\-allow\-zimg\fP
Results in true conversion to \fBycgco\fP, assuming the renderer
supports it (\fB\-\-vo=gpu\fP normally does). You can add \fB\-\-vo=xv\fP
to force a VO which definitely does not support it, which should
show incorrect colors as confirmation.
.sp
Using \fB\-\-sws\-allow\-zimg=no\fP (or disabling zimg at build time)
will use libswscale, which cannot perform this conversion as
of this writing.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB<colormatrix>\fP
Controls the YUV to RGB color space conversion when playing video. There
are various standards. Normally, BT.601 should be used for SD video, and
BT.709 for HD video. (This is done by default.) Using incorrect color space
results in slightly under or over saturated and shifted colors.
.sp
These options are not always supported. Different video outputs provide
varying degrees of support. The \fBgpu\fP and \fBvdpau\fP video output
drivers usually offer full support. The \fBxv\fP output can set the color
space if the system video driver supports it, but not input and output
levels. The \fBscale\fP video filter can configure color space and input
levels, but only if the output format is RGB (if the video output driver
supports RGB output, you can force this with \fB\-vf scale,format=rgba\fP).
.sp
If this option is set to \fBauto\fP (which is the default), the video\(aqs
color space flag will be used. If that flag is unset, the color space
will be selected automatically. This is done using a simple heuristic that
attempts to distinguish SD and HD video. If the video is larger than
1279x576 pixels, BT.709 (HD) will be used; otherwise BT.601 (SD) is
selected.
.sp
Available color spaces are:
.INDENT 7.0
.TP
.B auto
automatic selection (default)
.TP
.B bt.601
ITU\-R BT.601 (SD)
.TP
.B bt.709
ITU\-R BT.709 (HD)
.TP
.B bt.2020\-ncl
ITU\-R BT.2020 non\-constant luminance system
.TP
.B bt.2020\-cl
ITU\-R BT.2020 constant luminance system
.TP
.B smpte\-240m
SMPTE\-240M
.UNINDENT
.TP
.B \fB<colorlevels>\fP
YUV color levels used with YUV to RGB conversion. This option is only
necessary when playing broken files which do not follow standard color
levels or which are flagged wrong. If the video does not specify its
color range, it is assumed to be limited range.
.sp
The same limitations as with \fB<colormatrix>\fP apply.
.sp
Available color ranges are:
.INDENT 7.0
.TP
.B auto
automatic selection (normally limited range) (default)
.TP
.B limited
limited range (16\-235 for luma, 16\-240 for chroma)
.TP
.B full
full range (0\-255 for both luma and chroma)
.UNINDENT
.TP
.B \fB<primaries>\fP
RGB primaries the source file was encoded with. Normally this should be set
in the file header, but when playing broken or mistagged files this can be
used to override the setting.
.sp
This option only affects video output drivers that perform color
management, for example \fBgpu\fP with the \fBtarget\-prim\fP or
\fBicc\-profile\fP suboptions set.
.sp
If this option is set to \fBauto\fP (which is the default), the video\(aqs
primaries flag will be used. If that flag is unset, the color space will
be selected automatically, using the following heuristics: If the
\fB<colormatrix>\fP is set or determined as BT.2020 or BT.709, the
corresponding primaries are used. Otherwise, if the video height is
exactly 576 (PAL), BT.601\-625 is used. If it\(aqs exactly 480 or 486 (NTSC),
BT.601\-525 is used. If the video resolution is anything else, BT.709 is
used.
.sp
Available primaries are:
.INDENT 7.0
.TP
.B auto
automatic selection (default)
.TP
.B bt.601\-525
ITU\-R BT.601 (SD) 525\-line systems (NTSC, SMPTE\-C)
.TP
.B bt.601\-625
ITU\-R BT.601 (SD) 625\-line systems (PAL, SECAM)
.TP
.B bt.709
ITU\-R BT.709 (HD) (same primaries as sRGB)
.TP
.B bt.2020
ITU\-R BT.2020 (UHD)
.TP
.B apple
Apple RGB
.TP
.B adobe
Adobe RGB (1998)
.TP
.B prophoto
ProPhoto RGB (ROMM)
.TP
.B cie1931
CIE 1931 RGB
.TP
.B dci\-p3
DCI\-P3 (Digital Cinema)
.TP
.B v\-gamut
Panasonic V\-Gamut primaries
.UNINDENT
.TP
.B \fB<gamma>\fP
Gamma function the source file was encoded with. Normally this should be set
in the file header, but when playing broken or mistagged files this can be
used to override the setting.
.sp
This option only affects video output drivers that perform color management.
.sp
If this option is set to \fBauto\fP (which is the default), the gamma will
be set to BT.1886 for YCbCr content, sRGB for RGB content and Linear for
XYZ content.
.sp
Available gamma functions are:
.INDENT 7.0
.TP
.B auto
automatic selection (default)
.TP
.B bt.1886
ITU\-R BT.1886 (EOTF corresponding to BT.601/BT.709/BT.2020)
.TP
.B srgb
IEC 61966\-2\-4 (sRGB)
.TP
.B linear
Linear light
.TP
.B gamma1.8
Pure power curve (gamma 1.8)
.TP
.B gamma2.0
Pure power curve (gamma 2.0)
.TP
.B gamma2.2
Pure power curve (gamma 2.2)
.TP
.B gamma2.4
Pure power curve (gamma 2.4)
.TP
.B gamma2.6
Pure power curve (gamma 2.6)
.TP
.B gamma2.8
Pure power curve (gamma 2.8)
.TP
.B prophoto
ProPhoto RGB (ROMM) curve
.TP
.B pq
ITU\-R BT.2100 PQ (Perceptual quantizer) curve
.TP
.B hlg
ITU\-R BT.2100 HLG (Hybrid Log\-gamma) curve
.TP
.B v\-log
Panasonic V\-Log transfer curve
.TP
.B s\-log1
Sony S\-Log1 transfer curve
.TP
.B s\-log2
Sony S\-Log2 transfer curve
.UNINDENT
.TP
.B \fB<sig\-peak>\fP
Reference peak illumination for the video file, relative to the
signal\(aqs reference white level. This is mostly interesting for HDR, but
it can also be used tone map SDR content to simulate a different
exposure. Normally inferred from tags such as MaxCLL or mastering
metadata.
.sp
The default of 0.0 will default to the source\(aqs nominal peak luminance.
.TP
.B \fB<light>\fP
.INDENT 7.0
.INDENT 3.5
Light type of the scene. This is mostly correctly inferred based on the
gamma function, but it can be useful to override this when viewing raw
camera footage (e.g. V\-Log), which is normally scene\-referred instead
of display\-referred.
.sp
Available light types are:
.UNINDENT
.UNINDENT
.INDENT 7.0
.TP
.B auto
Automatic selection (default)
.TP
.B display
Display\-referred light (most content)
.TP
.B hlg
Scene\-referred using the HLG OOTF (e.g. HLG content)
.TP
.B 709\-1886
Scene\-referred using the BT709+BT1886 interaction
.TP
.B gamma1.2
Scene\-referred using a pure power OOTF (gamma=1.2)
.UNINDENT
.TP
.B \fB<stereo\-in>\fP
Set the stereo mode the video is assumed to be encoded in. Use
\fB\-\-vf format:stereo\-in=help\fP to list all available modes. Check with
the \fBstereo3d\fP filter documentation to see what the names mean.
.TP
.B \fB<stereo\-out>\fP
Set the stereo mode the video should be displayed as. Takes the
same values as the \fBstereo\-in\fP option.
.TP
.B \fB<rotate>\fP
Set the rotation the video is assumed to be encoded with in degrees.
The special value \fB\-1\fP uses the input format.
.TP
.B \fB<dw>\fP, \fB<dh>\fP
Set the display size. Note that setting the display size such that
the video is scaled in both directions instead of just changing the
aspect ratio is an implementation detail, and might change later.
.TP
.B \fB<dar>\fP
Set the display aspect ratio of the video frame. This is a float,
but values such as \fB[16:9]\fP can be passed too (\fB[...]\fP for quoting
to prevent the option parser from interpreting the \fB:\fP character).
.UNINDENT
.TP
.B \fBlavfi=graph[:sws\-flags[:o=opts]]\fP
Filter video using FFmpeg\(aqs libavfilter.
.INDENT 7.0
.TP
.B \fB<graph>\fP
The libavfilter graph string. The filter must have a single video input
pad and a single video output pad.
.sp
See \fI\%https://ffmpeg.org/ffmpeg\-filters.html\fP for syntax and available
filters.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
If you want to use the full filter syntax with this option, you have
to quote the filter graph in order to prevent mpv\(aqs syntax and the
filter graph syntax from clashing. To prevent a quoting and escaping
mess, consider using \fB\-\-lavfi\-complex\fP if you know which video
track you want to use from the input file. (There is only one video
track for nearly all video files anyway.)
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB\-\-vf=lavfi=[gradfun=20:30,vflip]\fP
\fBgradfun\fP filter with nonsense parameters, followed by a
\fBvflip\fP filter. (This demonstrates how libavfilter takes a
graph and not just a single filter.) The filter graph string is
quoted with \fB[\fP and \fB]\fP\&. This requires no additional quoting
or escaping with some shells (like bash), while others (like
zsh) require additional \fB"\fP quotes around the option string.
.TP
.B \fB\(aq\-\-vf=lavfi="gradfun=20:30,vflip"\(aq\fP
Same as before, but uses quoting that should be safe with all
shells. The outer \fB\(aq\fP quotes make sure that the shell does not
remove the \fB"\fP quotes needed by mpv.
.TP
.B \fB\(aq\-\-vf=lavfi=graph="gradfun=radius=30:strength=20,vflip"\(aq\fP
Same as before, but uses named parameters for everything.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB<sws\-flags>\fP
If libavfilter inserts filters for pixel format conversion, this
option gives the flags which should be passed to libswscale. This
option is numeric and takes a bit\-wise combination of \fBSWS_\fP flags.
.sp
See \fBhttp://git.videolan.org/?p=ffmpeg.git;a=blob;f=libswscale/swscale.h\fP\&.
.TP
.B \fB<o>\fP
Set AVFilterGraph options. These should be documented by FFmpeg.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B \fB\(aq\-\-vf=lavfi=yadif:o="threads=2,thread_type=slice"\(aq\fP
forces a specific threading configuration.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fBsub=[=bottom\-margin:top\-margin]\fP
Moves subtitle rendering to an arbitrary point in the filter chain, or force
subtitle rendering in the video filter as opposed to using video output OSD
support.
.INDENT 7.0
.TP
.B \fB<bottom\-margin>\fP
Adds a black band at the bottom of the frame. The SSA/ASS renderer can
place subtitles there (with \fB\-\-sub\-use\-margins\fP).
.TP
.B \fB<top\-margin>\fP
Black band on the top for toptitles  (with \fB\-\-sub\-use\-margins\fP).
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB\-\-vf=sub,eq\fP
Moves sub rendering before the eq filter. This will put both
subtitle colors and video under the influence of the video equalizer
settings.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fBvapoursynth=file:buffered\-frames:concurrent\-frames\fP
Loads a VapourSynth filter script. This is intended for streamed
processing: mpv actually provides a source filter, instead of using a
native VapourSynth video source. The mpv source will answer frame
requests only within a small window of frames (the size of this window
is controlled with the \fBbuffered\-frames\fP parameter), and requests outside
of that will return errors. As such, you can\(aqt use the full power of
VapourSynth, but you can use certain filters.
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
Do not use this filter, unless you have expert knowledge in VapourSynth,
and know how to fix bugs in the mpv VapourSynth wrapper code.
.UNINDENT
.UNINDENT
.sp
If you just want to play video generated by VapourSynth (i.e. using
a native VapourSynth video source), it\(aqs better to use \fBvspipe\fP and a
pipe or FIFO to feed the video to mpv. The same applies if the filter script
requires random frame access (see \fBbuffered\-frames\fP parameter).
.INDENT 7.0
.TP
.B \fBfile\fP
Filename of the script source. Currently, this is always a python
script (\fB\&.vpy\fP in VapourSynth convention).
.sp
The variable \fBvideo_in\fP is set to the mpv video source, and it is
expected that the script reads video from it. (Otherwise, mpv will
decode no video, and the video packet queue will overflow, eventually
leading to only audio playing, or worse.)
.sp
The filter graph created by the script is also expected to pass through
timestamps using the \fB_DurationNum\fP and \fB_DurationDen\fP frame
properties.
.sp
See the end of the option list for a full list of script variables
defined by mpv.
.INDENT 7.0
.INDENT 3.5
.IP "Example:"
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
import vapoursynth as vs
core = vs.get_core()
core.std.AddBorders(video_in, 10, 10, 20, 20).set_output()
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
The script will be reloaded on every seek. This is done to reset
the filter properly on discontinuities.
.UNINDENT
.UNINDENT
.TP
.B \fBbuffered\-frames\fP
Maximum number of decoded video frames that should be buffered before
the filter (default: 4). This specifies the maximum number of frames
the script can request in backward direction.
.sp
E.g. if \fBbuffered\-frames=5\fP, and the script just requested frame 15,
it can still request frame 10, but frame 9 is not available anymore.
If it requests frame 30, mpv will decode 15 more frames, and keep only
frames 25\-30.
.sp
The only reason why this buffer exists is to serve the random access
requests the VapourSynth filter can make.
.sp
The VapourSynth API has a \fBgetFrameAsync\fP function, which takes an
absolute frame number. Source filters must respond to all requests. For
example, a source filter can request frame 2432, and then frame 3.
Source filters  typically implement this by pre\-indexing the entire
file.
.sp
mpv on the other hand is stream oriented, and does not allow filters to
seek. (And it would not make sense to allow it, because it would ruin
performance.) Filters get frames sequentially in playback direction, and
cannot request them out of order.
.sp
To compensate for this mismatch, mpv allows the filter to access frames
within a certain window. \fBbuffered\-frames\fP controls the size of this
window. Most VapourSynth filters happen to work with this, because mpv
requests frames sequentially increasing from it, and most filters only
require frames "close" to the requested frame.
.sp
If the filter requests a frame that has a higher frame number than the
highest buffered frame, new frames will be decoded until the requested
frame number is reached. Excessive frames will be flushed out in a FIFO
manner (there are only at most \fBbuffered\-frames\fP in this buffer).
.sp
If the filter requests a frame that has a lower frame number than the
lowest buffered frame, the request cannot be satisfied, and an error
is returned to the filter. This kind of error is not supposed to happen
in a "proper" VapourSynth environment. What exactly happens depends on
the filters involved.
.sp
Increasing this buffer will not improve performance. Rather, it will
waste memory, and slow down seeks (when enough frames to fill the buffer
need to be decoded at once). It is only needed to prevent the error
described in the previous paragraph.
.sp
How many frames a filter requires depends on filter implementation
details, and mpv has no way of knowing. A scale filter might need only
1 frame, an interpolation filter may require a small number of frames,
and the \fBReverse\fP filter will require an infinite number of frames.
.sp
If you want reliable operation to the full extend VapourSynth is
capable, use \fBvspipe\fP\&.
.sp
The actual number of buffered frames also depends on the value of the
\fBconcurrent\-frames\fP option. Currently, both option values are
multiplied to get the final buffer size.
.TP
.B \fBconcurrent\-frames\fP
Number of frames that should be requested in parallel. The
level of concurrency depends on the filter and how quickly mpv can
decode video to feed the filter. This value should probably be
proportional to the number of cores on your machine. Most time,
making it higher than the number of cores can actually make it
slower.
.sp
Technically, mpv will call the VapourSynth \fBgetFrameAsync\fP function
in a loop, until there are \fBconcurrent\-frames\fP frames that have not
been returned by the filter yet. This also assumes that the rest of the
mpv filter chain reads the output of the \fBvapoursynth\fP filter quickly
enough. (For example, if you pause the player, filtering will stop very
soon, because the filtered frames are waiting in a queue.)
.sp
Actual concurrency depends on many other factors.
.sp
By default, this uses the special value \fBauto\fP, which sets the option
to the number of detected logical CPU cores.
.UNINDENT
.sp
The following \fB\&.vpy\fP script variables are defined by mpv:
.INDENT 7.0
.TP
.B \fBvideo_in\fP
The mpv video source as vapoursynth clip. Note that this has an
incorrect (very high) length set, which confuses many filters. This is
necessary, because the true number of frames is unknown. You can use the
\fBTrim\fP filter on the clip to reduce the length.
.TP
.B \fBvideo_in_dw\fP, \fBvideo_in_dh\fP
Display size of the video. Can be different from video size if the
video does not use square pixels (e.g. DVD).
.TP
.B \fBcontainer_fps\fP
FPS value as reported by file headers. This value can be wrong or
completely broken (e.g. 0 or NaN). Even if the value is correct,
if another filter changes the real FPS (by dropping or inserting
frames), the value of this variable will not be useful. Note that
the \fB\-\-fps\fP command line option overrides this value.
.sp
Useful for some filters which insist on having a FPS.
.TP
.B \fBdisplay_fps\fP
Refresh rate of the current display. Note that this value can be 0.
.UNINDENT
.TP
.B \fBvavpp\fP
VA\-API video post processing. Requires the system to support VA\-API,
i.e. Linux/BSD only. Works with \fB\-\-vo=vaapi\fP and \fB\-\-vo=gpu\fP only.
Currently deinterlaces. This filter is automatically inserted if
deinterlacing is requested (either using the \fBd\fP key, by default mapped to
the command \fBcycle deinterlace\fP, or the \fB\-\-deinterlace\fP option).
.INDENT 7.0
.TP
.B \fBdeint=<method>\fP
Select the deinterlacing algorithm.
.INDENT 7.0
.TP
.B no
Don\(aqt perform deinterlacing.
.TP
.B auto
Select the best quality deinterlacing algorithm (default). This
goes by the order of the options as documented, with
\fBmotion\-compensated\fP being considered best quality.
.TP
.B first\-field
Show only first field.
.TP
.B bob
bob deinterlacing.
.TP
.B weave, motion\-adaptive, motion\-compensated
Advanced deinterlacing algorithms. Whether these actually work
depends on the GPU hardware, the GPU drivers, driver bugs, and
mpv bugs.
.UNINDENT
.TP
.B \fB<interlaced\-only>\fP
.INDENT 7.0
.TP
.B no
Deinterlace all frames (default).
.TP
.B yes
Only deinterlace frames marked as interlaced.
.UNINDENT
.TP
.B \fBreversal\-bug=<yes|no>\fP
.INDENT 7.0
.TP
.B no
Use the API as it was interpreted by older Mesa drivers. While
this interpretation was more obvious and inuitive, it was
apparently wrong, and not shared by Intel driver developers.
.TP
.B yes
Use Intel interpretation of surface forward and backwards
references (default). This is what Intel drivers and newer Mesa
drivers expect. Matters only for the advanced deinterlacing
algorithms.
.UNINDENT
.UNINDENT
.TP
.B \fBvdpaupp\fP
VDPAU video post processing. Works with \fB\-\-vo=vdpau\fP and \fB\-\-vo=gpu\fP
only. This filter is automatically inserted if deinterlacing is requested
(either using the \fBd\fP key, by default mapped to the command
\fBcycle deinterlace\fP, or the \fB\-\-deinterlace\fP option). When enabling
deinterlacing, it is always preferred over software deinterlacer filters
if the \fBvdpau\fP VO is used, and also if \fBgpu\fP is used and hardware
decoding was activated at least once (i.e. vdpau was loaded).
.INDENT 7.0
.TP
.B \fBsharpen=<\-1\-1>\fP
For positive values, apply a sharpening algorithm to the video, for
negative values a blurring algorithm (default: 0).
.TP
.B \fBdenoise=<0\-1>\fP
Apply a noise reduction algorithm to the video (default: 0; no noise
reduction).
.TP
.B \fBdeint=<yes|no>\fP
Whether deinterlacing is enabled (default: no). If enabled, it will use
the mode selected with \fBdeint\-mode\fP\&.
.TP
.B \fBdeint\-mode=<first\-field|bob|temporal|temporal\-spatial>\fP
Select deinterlacing mode (default: temporal).
.sp
Note that there\(aqs currently a mechanism that allows the \fBvdpau\fP VO to
change the \fBdeint\-mode\fP of auto\-inserted \fBvdpaupp\fP filters. To avoid
confusion, it\(aqs recommended not to use the \fB\-\-vo=vdpau\fP suboptions
related to filtering.
.INDENT 7.0
.TP
.B first\-field
Show only first field.
.TP
.B bob
Bob deinterlacing.
.TP
.B temporal
Motion\-adaptive temporal deinterlacing. May lead to A/V desync
with slow video hardware and/or high resolution.
.TP
.B temporal\-spatial
Motion\-adaptive temporal deinterlacing with edge\-guided spatial
interpolation. Needs fast video hardware.
.UNINDENT
.TP
.B \fBchroma\-deint\fP
Makes temporal deinterlacers operate both on luma and chroma (default).
Use no\-chroma\-deint to solely use luma and speed up advanced
deinterlacing. Useful with slow video memory.
.TP
.B \fBpullup\fP
Try to apply inverse telecine, needs motion adaptive temporal
deinterlacing.
.TP
.B \fBinterlaced\-only=<yes|no>\fP
If \fByes\fP, only deinterlace frames marked as interlaced (default: no).
.TP
.B \fBhqscaling=<0\-9>\fP
.INDENT 7.0
.TP
.B 0
Use default VDPAU scaling (default).
.TP
.B 1\-9
Apply high quality VDPAU scaling (needs capable hardware).
.UNINDENT
.UNINDENT
.TP
.B \fBd3d11vpp\fP
Direct3D 11 video post processing. Currently requires D3D11 hardware
decoding for use.
.INDENT 7.0
.TP
.B \fBdeint=<yes|no>\fP
Whether deinterlacing is enabled (default: no).
.TP
.B \fBinterlaced\-only=<yes|no>\fP
If \fByes\fP, only deinterlace frames marked as interlaced (default: no).
.TP
.B \fBmode=<blend|bob|adaptive|mocomp|ivctc|none>\fP
Tries to select a video processor with the given processing capability.
If a video processor supports multiple capabilities, it is not clear
which algorithm is actually selected. \fBnone\fP always falls back. On
most if not all hardware, this option will probably do nothing, because
a video processor usually supports all modes or none.
.UNINDENT
.TP
.B \fBfingerprint=...\fP
Compute video frame fingerprints and provide them as metadata. Actually, it
currently barely deserved to be called \fBfingerprint\fP, because it does not
compute "proper" fingerprints, only tiny downscaled images (but which can be
used to compute image hashes or for similarity matching).
.sp
The main purpose of this filter is to support the \fBskip\-logo.lua\fP script.
If this script is dropped, or mpv ever gains a way to load user\-defined
filters (other than VapourSynth), this filter will be removed. Due to the
"special" nature of this filter, it will be removed without warning.
.sp
The intended way to read from the filter is using \fBvf\-metadata\fP (also
see \fBclear\-on\-query\fP filter parameter). The property will return a list
of key/value pairs as follows:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
fp0.pts = 1.2345
fp0.hex = 1234abcdef...bcde
fp1.pts = 1.4567
fp1.hex = abcdef1234...6789
\&...
fpN.pts = ...
fpN.hex = ...
type = gray\-hex\-16x16
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Each \fBfp<N>\fP entry is for a frame. The \fBpts\fP entry specifies the
timestamp of the frame (within the filter chain; in simple cases this is
the same as the display timestamp). The \fBhex\fP field is the hex encoded
fingerprint, whose size and meaning depend on the \fBtype\fP filter option.
The \fBtype\fP field has the same value as the option the filter was created
with.
.sp
This returns the frames that were filtered since the last query of the
property. If \fBclear\-on\-query=no\fP was set, a query doesn\(aqt reset the list
of frames. In both cases, a maximum of 10 frames is returned. If there are
more frames, the oldest frames are discarded. Frames are returned in filter
order.
.sp
(This doesn\(aqt return a structured list for the per\-frame details because the
internals of the \fBvf\-metadata\fP mechanism suck. The returned format may
change in the future.)
.sp
This filter uses zimg for speed and profit. However, it will fallback to
libswscale in a number of situations: lesser pixel formats, unaligned data
pointers or strides, or if zimg fails to initialize for unknown reasons. In
these cases, the filter will use more CPU. Also, it will output different
fingerprints, because libswscale cannot perform the full range expansion we
normally request from zimg. As a consequence, the filter may be slower and
not work correctly in random situations.
.INDENT 7.0
.TP
.B \fBtype=...\fP
What fingerprint to compute. Available types are:
.INDENT 7.0
.TP
.B gray\-hex\-8x8
grayscale, 8 bit, 8x8 size
.TP
.B gray\-hex\-16x16
grayscale, 8 bit, 16x16 size (default)
.UNINDENT
.sp
Both types simply remove all colors, downscale the image, concatenate
all pixel values to a byte array, and convert the array to a hex string.
.TP
.B \fBclear\-on\-query=yes|no\fP
Clear the list of frame fingerprints if the \fBvf\-metadata\fP property for
this filter is queried (default: yes). This requires some care by the
user. Some types of accesses might query the filter multiple times,
which leads to lost frames.
.TP
.B \fBprint=yes|no\fP
Print computed fingerprints the the terminal (default: no). This is
mostly for testing and such. Scripts should use \fBvf\-metadata\fP to
read information from this filter instead.
.UNINDENT
.TP
.B \fBgpu=...\fP
Convert video to RGB using the OpenGL renderer normally used with
\fB\-\-vo=gpu\fP\&. This requires that the EGL implementation supports off\-screen
rendering on the default display. (This is the case with Mesa.)
.sp
Sub\-options:
.INDENT 7.0
.TP
.B \fBw=<pixels>\fP, \fBh=<pixels>\fP
Size of the output in pixels (default: 0). If not positive, this will
use the size of the first filtered input frame.
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This is highly experimental. Performance is bad, and it will not work
everywhere in the first place. Some features are not supported.
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
This does not do OSD rendering. If you see OSD, then it has been
rendered by the VO backend. (Subtitles are rendered by the \fBgpu\fP
filter, if possible.)
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
If you use this with encoding mode, keep in mind that encoding mode will
convert the RGB filter\(aqs output back to yuv420p in software, using the
configured software scaler. Using \fBzimg\fP might improve this, but in
any case it might go against your goals when using this filter.
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
Do not use this with \fB\-\-vo=gpu\fP\&. It will apply filtering twice, since
most \fB\-\-vo=gpu\fP options are unconditionally applied to the \fBgpu\fP
filter. There is no mechanism in mpv to prevent this.
.UNINDENT
.UNINDENT
.UNINDENT
.SH ENCODING
.sp
You can encode files from one format/codec to another using this facility.
.INDENT 0.0
.TP
.B \fB\-\-o=<filename>\fP
Enables encoding mode and specifies the output file name.
.TP
.B \fB\-\-of=<format>\fP
Specifies the output format (overrides autodetection by the file name
extension of the file specified by \fB\-o\fP). See \fB\-\-of=help\fP for a full
list of supported formats.
.TP
.B \fB\-\-ofopts=<options>\fP
Specifies the output format options for libavformat.
See \fB\-\-ofopts=help\fP for a full list of supported options.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.TP
.B \fB\-\-ofopts\-add=<option>\fP
Appends the option given as an argument to the options list. (Passing
multiple options is currently still possible, but deprecated.)
.TP
.B \fB\-\-ofopts=""\fP
Completely empties the options list.
.UNINDENT
.TP
.B \fB\-\-oac=<codec>\fP
Specifies the output audio codec. See \fB\-\-oac=help\fP for a full list of
supported codecs.
.TP
.B \fB\-\-oaoffset=<value>\fP
Shifts audio data by the given time (in seconds) by adding/removing
samples at the start. Deprecated.
.TP
.B \fB\-\-oacopts=<options>\fP
Specifies the output audio codec options for libavcodec.
See \fB\-\-oacopts=help\fP for a full list of supported options.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B "\fB\-\-oac=libmp3lame \-\-oacopts=b=128000\fP"
selects 128 kbps MP3 encoding.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.TP
.B \fB\-\-oacopts\-add=<option>\fP
Appends the option given as an argument to the options list. (Passing
multiple options is currently still possible, but deprecated.)
.TP
.B \fB\-\-oacopts=""\fP
Completely empties the options list.
.UNINDENT
.TP
.B \fB\-\-oafirst\fP
Force the audio stream to become the first stream in the output.
By default, the order is unspecified. Deprecated.
.TP
.B \fB\-\-ovc=<codec>\fP
Specifies the output video codec. See \fB\-\-ovc=help\fP for a full list of
supported codecs.
.TP
.B \fB\-\-ovoffset=<value>\fP
Shifts video data by the given time (in seconds) by shifting the pts
values. Deprecated.
.TP
.B \fB\-\-ovcopts=<options>\fP
Specifies the output video codec options for libavcodec.
See \-\-ovcopts=help for a full list of supported options.
.INDENT 7.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.TP
.B \fB"\-\-ovc=mpeg4 \-\-ovcopts=qscale=5"\fP
selects constant quantizer scale 5 for MPEG\-4 encoding.
.TP
.B \fB"\-\-ovc=libx264 \-\-ovcopts=crf=23"\fP
selects VBR quality factor 23 for H.264 encoding.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.TP
.B \fB\-\-ovcopts\-add=<option>\fP
Appends the option given as an argument to the options list. (Passing
multiple options is currently still possible, but deprecated.)
.TP
.B \fB\-\-ovcopts=""\fP
Completely empties the options list.
.UNINDENT
.TP
.B \fB\-\-ovfirst\fP
Force the video stream to become the first stream in the output.
By default, the order is unspecified. Deprecated.
.TP
.B \fB\-\-orawts\fP
Copies input pts to the output video (not supported by some output
container formats, e.g. AVI). In this mode, discontinuities are not fixed
and all pts are passed through as\-is. Never seek backwards or use multiple
input files in this mode!
.TP
.B \fB\-\-no\-ocopy\-metadata\fP
Turns off copying of metadata from input files to output files when
encoding (which is enabled by default).
.TP
.B \fB\-\-oset\-metadata=<metadata\-tag[,metadata\-tag,...]>\fP
Specifies metadata to include in the output file.
Supported keys vary between output formats. For example, Matroska (MKV) and
FLAC allow almost arbitrary keys, while support in MP4 and MP3 is more
limited.
.sp
This is a key/value list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B "\fB\-\-oset\-metadata=title="Output title",comment="Another tag"\fP"
adds a title and a comment to the output file.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fB\-\-oremove\-metadata=<metadata\-tag[,metadata\-tag,...]>\fP
Specifies metadata to exclude from the output file when copying from the
input file.
.sp
This is a string list option. See \fI\%List Options\fP for details.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.TP
.B "\fB\-\-oremove\-metadata=comment,genre\fP"
excludes copying of the the comment and genre tags to the output
file.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SH COMMAND INTERFACE
.sp
The mpv core can be controlled with commands and properties. A number of ways
to interact with the player use them: key bindings (\fBinput.conf\fP), OSD
(showing information with properties), JSON IPC, the client API (\fBlibmpv\fP),
and the classic slave mode.
.SS input.conf
.sp
The input.conf file consists of a list of key bindings, for example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
s screenshot      # take a screenshot with the s key
LEFT seek 15      # map the left\-arrow key to seeking forward by 15 seconds
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Each line maps a key to an input command. Keys are specified with their literal
value (upper case if combined with \fBShift\fP), or a name for special keys. For
example, \fBa\fP maps to the \fBa\fP key without shift, and \fBA\fP maps to \fBa\fP
with shift.
.sp
The file is located in the mpv configuration directory (normally at
\fB~/.config/mpv/input.conf\fP depending on platform). The default bindings are
defined here:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
https://github.com/mpv\-player/mpv/blob/master/etc/input.conf
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
A list of special keys can be obtained with
.INDENT 0.0
.INDENT 3.5
\fBmpv \-\-input\-keylist\fP
.UNINDENT
.UNINDENT
.sp
In general, keys can be combined with \fBShift\fP, \fBCtrl\fP and \fBAlt\fP:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ctrl+q quit
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fBmpv\fP can be started in input test mode, which displays key bindings and the
commands they\(aqre bound to on the OSD, instead of executing the commands:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
mpv \-\-input\-test \-\-force\-window \-\-idle
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
(Only closing the window will make \fBmpv\fP exit, pressing normal keys will
merely display the binding, even if mapped to quit.)
.sp
Also see \fI\%Key names\fP\&.
.SS input.conf syntax
.sp
\fB[Shift+][Ctrl+][Alt+][Meta+]<key> [{<section>}] <command> ( ; <command> )*\fP
.sp
Note that by default, the right Alt key can be used to create special
characters, and thus does not register as a modifier. The option
\fB\-\-no\-input\-right\-alt\-gr\fP changes this behavior.
.sp
Newlines always start a new binding. \fB#\fP starts a comment (outside of quoted
string arguments). To bind commands to the \fB#\fP key, \fBSHARP\fP can be used.
.sp
\fB<key>\fP is either the literal character the key produces (ASCII or Unicode
character), or a symbolic name (as printed by \fB\-\-input\-keylist\fP).
.sp
\fB<section>\fP (braced with \fB{\fP and \fB}\fP) is the input section for this
command.
.sp
\fB<command>\fP is the command itself. It consists of the command name and
multiple (or none) commands, all separated by whitespace. String arguments
need to be quoted with \fB"\fP\&. Details see \fBFlat command syntax\fP\&.
.sp
You can bind multiple commands to one key. For example:
.nf
a show\-text "command 1" ; show\-text "command 2"
.fi
.sp
.sp
It\(aqs also possible to bind a command to a sequence of keys:
.nf
a\-b\-c show\-text "command run after a, b, c have been pressed"
.fi
.sp
.sp
(This is not shown in the general command syntax.)
.sp
If \fBa\fP or \fBa\-b\fP or \fBb\fP are already bound, this will run the first command
that matches, and the multi\-key command will never be called. Intermediate keys
can be remapped to \fBignore\fP in order to avoid this issue. The maximum number
of (non\-modifier) keys for combinations is currently 4.
.SS Key names
.sp
All mouse and keyboard input is to converted to mpv\-specific key names. Key
names are either special symbolic identifiers representing a physical key, or a
text key names, which are unicode code points encoded as UTF\-8. These are what
keyboard input would normally produce, for example \fBa\fP for the A key. As a
consequence, mpv uses input translated by the current OS keyboard layout, rather
than physical scan codes.
.sp
Currently there is the hardcoded assumption that every text key can be
represented as a single unicode code point (in NFKC form).
.sp
All key names can be combined with the modifiers \fBShift\fP, \fBCtrl\fP, \fBAlt\fP,
\fBMeta\fP\&. They must be prefixed to the actual key name, where each modifier
is followed by a \fB+\fP (for example \fBctrl+q\fP).
.sp
Symbolic key names and modifier names are case\-insensitive. Unicode key names
are case\-sensitive because input bindings typically respect the shift key.
.sp
Another type of key names are hexadecimal key names, that serve as fallback
for special keys that are neither unicode, nor have a special mpv defined name.
They will break as soon as mpv adds proper names for them, but can enable you
to use a key at all if that does not happen.
.sp
All symbolic names are listed by \fB\-\-input\-keylist\fP\&. \fB\-\-input\-test\fP is a
special mode that prints all input on the OSD.
.sp
Comments on some symbolic names:
.INDENT 0.0
.TP
.B \fBKP*\fP
Keypad names. Behavior varies by backend (whether they implement this, and
on how they treat numlock), but typically, mpv tries to map keys on the
keypad to separate names, even if they produce the same text as normal keys.
.TP
.B \fBMOUSE_BTN*\fP, \fBMBTN*\fP
Various mouse buttons.
.sp
Depending on backend, the mouse wheel might also be represented as a button.
In addition, \fBMOUSE_BTN3\fP to \fBMOUSE_BTN6\fP are deprecated aliases for
\fBWHEEL_UP\fP, \fBWHEEL_DOWN\fP, \fBWHEEL_LEFT\fP, \fBWHEEL_RIGHT\fP\&.
.sp
\fBMBTN*\fP are aliases for \fBMOUSE_BTN*\fP\&.
.TP
.B \fBWHEEL_*\fP
Mouse wheels (typically).
.TP
.B \fBAXIS_*\fP
Deprecated aliases for \fBWHEEL_*\fP\&.
.TP
.B \fB*_DBL\fP
Mouse button double clicks.
.TP
.B \fBMOUSE_MOVE\fP, \fBMOUSE_ENTER\fP, \fBMOUSE_LEAVE\fP
Emitted by mouse move events. Enter/leave happens when the mouse enters or
leave the mpv window (or the current mouse region, using the deprecated
mouse region input section mechanism).
.TP
.B \fBCLOSE_WIN\fP
Pseudo key emitted when closing the mpv window using the OS window manager
(for example, by clicking the close button in the window title bar).
.TP
.B \fBGAMEPAD_*\fP
Keys emitted by the SDL gamepad backend.
.TP
.B \fBUNMAPPED\fP
Pseudo\-key that matches any unmapped key. (You should probably avoid this
if possible, because it might change behavior or get removed in the future.)
.TP
.B \fBANY_UNICODE\fP
Pseudo\-key that matches any key that produces text. (You should probably
avoid this if possible, because it might change behavior or get removed in
the future.)
.UNINDENT
.SS Flat command syntax
.sp
This is the syntax used in input.conf, and referred to "input.conf syntax" in
a number of other places.
.sp
\fB<command> ::= [<prefixes>] <command_name> (<argument>)*\fP
\fB<argument> ::= (<string> | " <quoted_string> " )\fP
.sp
\fBcommand_name\fP is an unquoted string with the command name itself. See
\fI\%List of Input Commands\fP for a list.
.sp
Arguments are separated by whitespace. This applies even to string arguments.
For this reason, string arguments should be quoted with \fB"\fP\&. If a string
argument contains spaces or certain special characters, quoting and possibly
escaping is mandatory, or the command cannot be parsed correctly.
.sp
Inside quotes, C\-style escaping can be used. JSON escapes according to RFC 8259,
minus surrogate pair escapes, should be a safe subset that can be used.
.SS Commands specified as arrays
.sp
This applies to certain APIs, such as \fBmp.commandv()\fP or
\fBmp.command_native()\fP (with array parameters) in Lua scripting, or
\fBmpv_command()\fP or \fBmpv_command_node()\fP (with MPV_FORMAT_NODE_ARRAY) in the
C libmpv client API.
.sp
The command as well as all arguments are passed as a single array. Similar to
the \fI\%Flat command syntax\fP, you can first pass prefixes as strings (each as
separate array item), then the command name as string, and then each argument
as string or a native value.
.sp
Since these APIs pass arguments as separate strings or native values, they do
not expect quotes, and do support escaping. Technically, there is the input.conf
parser, which first splits the command string into arguments, and then invokes
argument parsers for each argument. The input.conf parser normally handles
quotes and escaping. The array command APIs mentioned above pass strings
directly to the argument parsers, or can sidestep them by the ability to pass
non\-string values.
.sp
Sometimes commands have string arguments, that in turn are actually parsed by
other components (e.g. filter strings with \fBvf add\fP) \- in these cases, you
you would have to double\-escape in input.conf, but not with the array APIs.
.sp
For complex commands, consider using \fI\%Named arguments\fP instead, which should
give slightly more compatibility. Some commands do not support named arguments
and inherently take an array, though.
.SS Named arguments
.sp
This applies to certain APIs, such as \fBmp.command_native()\fP (with tables that
have string keys) in Lua scripting, or \fBmpv_command_node()\fP (with
MPV_FORMAT_NODE_MAP) in the C libmpv client API.
.sp
Like with array commands, quoting and escaping is inherently not needed in the
normal case.
.sp
The name of each command is defined in each command description in the
\fI\%List of Input Commands\fP\&. \fB\-\-input\-cmdlist\fP also lists them.
.sp
Some commands do not support named arguments (e.g. \fBrun\fP command). You need
to use APIs that pass arguments as arrays.
.sp
Named arguments are not supported in the "flat" input.conf syntax, which means
you cannot use them for key bindings in input.conf at all.
.SS List of Input Commands
.sp
Commands with parameters have the parameter name enclosed in \fB<\fP / \fB>\fP\&.
Don\(aqt add those to the actual command. Optional arguments are enclosed in
\fB[\fP / \fB]\fP\&. If you don\(aqt pass them, they will be set to a default value.
.sp
Remember to quote string arguments in input.conf (see \fI\%Flat command syntax\fP).
.INDENT 0.0
.TP
.B \fBignore\fP
Use this to "block" keys that should be unbound, and do nothing. Useful for
disabling default bindings, without disabling all bindings with
\fB\-\-no\-input\-default\-bindings\fP\&.
.TP
.B \fBseek <target> [<flags>]\fP
Change the playback position. By default, seeks by a relative amount of
seconds.
.sp
The second argument consists of flags controlling the seek mode:
.INDENT 7.0
.TP
.B relative (default)
Seek relative to current position (a negative value seeks backwards).
.TP
.B absolute
Seek to a given time (a negative value starts from the end of the file).
.TP
.B absolute\-percent
Seek to a given percent position.
.TP
.B relative\-percent
Seek relative to current position in percent.
.TP
.B keyframes
Always restart playback at keyframe boundaries (fast).
.TP
.B exact
Always do exact/hr/precise seeks (slow).
.UNINDENT
.sp
Multiple flags can be combined, e.g.: \fBabsolute+keyframes\fP\&.
.sp
By default, \fBkeyframes\fP is used for \fBrelative\fP, \fBrelative\-percent\fP,
and \fBabsolute\-percent\fP seeks, while \fBexact\fP is used for \fBabsolute\fP
seeks.
.sp
Before mpv 0.9, the \fBkeyframes\fP and \fBexact\fP flags had to be passed as
3rd parameter (essentially using a space instead of \fB+\fP). The 3rd
parameter is still parsed, but is considered deprecated.
.TP
.B \fBrevert\-seek [<flags>]\fP
Undoes the \fBseek\fP command, and some other commands that seek (but not
necessarily all of them). Calling this command once will jump to the
playback position before the seek. Calling it a second time undoes the
\fBrevert\-seek\fP command itself. This only works within a single file.
.sp
The first argument is optional, and can change the behavior:
.INDENT 7.0
.TP
.B mark
Mark the current time position. The next normal \fBrevert\-seek\fP command
will seek back to this point, no matter how many seeks happened since
last time.
.UNINDENT
.sp
Using it without any arguments gives you the default behavior.
.TP
.B \fBframe\-step\fP
Play one frame, then pause. Does nothing with audio\-only playback.
.TP
.B \fBframe\-back\-step\fP
Go back by one frame, then pause. Note that this can be very slow (it tries
to be precise, not fast), and sometimes fails to behave as expected. How
well this works depends on whether precise seeking works correctly (e.g.
see the \fB\-\-hr\-seek\-demuxer\-offset\fP option). Video filters or other video
post\-processing that modifies timing of frames (e.g. deinterlacing) should
usually work, but might make backstepping silently behave incorrectly in
corner cases. Using \fB\-\-hr\-seek\-framedrop=no\fP should help, although it
might make precise seeking slower.
.sp
This does not work with audio\-only playback.
.TP
.B \fBset <name> <value>\fP
Set the given property or option to the given value.
.TP
.B \fBadd <name> [<value>]\fP
Add the given value to the property or option. On overflow or underflow,
clamp the property to the maximum. If \fB<value>\fP is omitted, assume \fB1\fP\&.
.TP
.B \fBcycle <name> [<value>]\fP
Cycle the given property or option. The second argument can be \fBup\fP or
\fBdown\fP to set the cycle direction. On overflow, set the property back to
the minimum, on underflow set it to the maximum. If \fBup\fP or \fBdown\fP is
omitted, assume \fBup\fP\&.
.TP
.B \fBmultiply <name> <value>\fP
Similar to \fBadd\fP, but multiplies the property or option with the numeric
value.
.TP
.B \fBscreenshot <flags>\fP
Take a screenshot.
.sp
Multiple flags are available (some can be combined with \fB+\fP):
.INDENT 7.0
.TP
.B <subtitles> (default)
Save the video image, in its original resolution, and with subtitles.
Some video outputs may still include the OSD in the output under certain
circumstances.
.TP
.B <video>
Like \fBsubtitles\fP, but typically without OSD or subtitles. The exact
behavior depends on the selected video output.
.TP
.B <window>
Save the contents of the mpv window. Typically scaled, with OSD and
subtitles. The exact behavior depends on the selected video output, and
if no support is available, this will act like \fBvideo\fP\&.
.TP
.B <each\-frame>
Take a screenshot each frame. Issue this command again to stop taking
screenshots. Note that you should disable frame\-dropping when using
this mode \- or you might receive duplicate images in cases when a
frame was dropped. This flag can be combined with the other flags,
e.g. \fBvideo+each\-frame\fP\&.
.UNINDENT
.sp
Older mpv versions required passing \fBsingle\fP and \fBeach\-frame\fP as
second argument (and did not have flags). This syntax is still understood,
but deprecated and might be removed in the future.
.sp
If you combine this command with another one using \fB;\fP, you can use the
\fBasync\fP flag to make encoding/writing the image file asynchronous. For
normal standalone commands, this is always asynchronous, and the flag has
no effect. (This behavior changed with mpv 0.29.0.)
.TP
.B \fBscreenshot\-to\-file <filename> <flags>\fP
Take a screenshot and save it to a given file. The format of the file will
be guessed by the extension (and \fB\-\-screenshot\-format\fP is ignored \- the
behavior when the extension is missing or unknown is arbitrary).
.sp
The second argument is like the first argument to \fBscreenshot\fP and
supports \fBsubtitles\fP, \fBvideo\fP, \fBwindow\fP\&.
.sp
If the file already exists, it\(aqs overwritten.
.sp
Like all input command parameters, the filename is subject to property
expansion as described in \fI\%Property Expansion\fP\&.
.TP
.B \fBplaylist\-next <flags>\fP
Go to the next entry on the playlist.
.sp
First argument:
.INDENT 7.0
.TP
.B weak (default)
If the last file on the playlist is currently played, do nothing.
.TP
.B force
Terminate playback if there are no more files on the playlist.
.UNINDENT
.TP
.B \fBplaylist\-prev <flags>\fP
Go to the previous entry on the playlist.
.sp
First argument:
.INDENT 7.0
.TP
.B weak (default)
If the first file on the playlist is currently played, do nothing.
.TP
.B force
Terminate playback if the first file is being played.
.UNINDENT
.TP
.B \fBloadfile <url> [<flags> [<options>]]\fP
Load the given file or URL and play it.
.sp
Second argument:
.INDENT 7.0
.TP
.B <replace> (default)
Stop playback of the current file, and play the new file immediately.
.TP
.B <append>
Append the file to the playlist.
.TP
.B <append\-play>
Append the file, and if nothing is currently playing, start playback.
(Always starts with the added file, even if the playlist was not empty
before running this command.)
.UNINDENT
.sp
The third argument is a list of options and values which should be set
while the file is playing. It is of the form \fBopt1=value1,opt2=value2,..\fP\&.
Not all options can be changed this way. Some options require a restart
of the player.
.TP
.B \fBloadlist <url> [<flags>]\fP
Load the given playlist file or URL (like \fB\-\-playlist\fP).
.sp
Second argument:
.INDENT 7.0
.TP
.B <replace> (default)
Stop playback and replace the internal playlist with the new one.
.TP
.B <append>
Append the new playlist at the end of the current internal playlist.
.UNINDENT
.TP
.B \fBplaylist\-clear\fP
Clear the playlist, except the currently played file.
.TP
.B \fBplaylist\-remove <index>\fP
Remove the playlist entry at the given index. Index values start counting
with 0. The special value \fBcurrent\fP removes the current entry. Note that
removing the current entry also stops playback and starts playing the next
entry.
.TP
.B \fBplaylist\-move <index1> <index2>\fP
Move the playlist entry at index1, so that it takes the place of the
entry index2. (Paradoxically, the moved playlist entry will not have
the index value index2 after moving if index1 was lower than index2,
because index2 refers to the target entry, not the index the entry
will have after moving.)
.TP
.B \fBplaylist\-shuffle\fP
Shuffle the playlist. This is similar to what is done on start if the
\fB\-\-shuffle\fP option is used.
.TP
.B \fBplaylist\-unshuffle\fP
Attempt to revert the previous \fBplaylist\-shuffle\fP command. This works
only once (multiple successive \fBplaylist\-unshuffle\fP commands do nothing).
May not work correctly if new recursive playlists have been opened since
a \fBplaylist\-shuffle\fP command.
.TP
.B \fBrun <command> [<arg1> [<arg2> [...]]]\fP
Run the given command. Unlike in MPlayer/mplayer2 and earlier versions of
mpv (0.2.x and older), this doesn\(aqt call the shell. Instead, the command
is run directly, with each argument passed separately. Each argument is
expanded like in \fI\%Property Expansion\fP\&.
.sp
This command has a variable number of arguments, and cannot be used with
named arguments.
.sp
The program is run in a detached way. mpv doesn\(aqt wait until the command
is completed, but continues playback right after spawning it.
.sp
To get the old behavior, use \fB/bin/sh\fP and \fB\-c\fP as the first two
arguments.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fBrun "/bin/sh" "\-c" "echo ${title} > /tmp/playing"\fP
.sp
This is not a particularly good example, because it doesn\(aqt handle
escaping, and a specially prepared file might allow an attacker to
execute arbitrary shell commands. It is recommended to write a small
shell script, and call that with \fBrun\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fBsubprocess\fP
Similar to \fBrun\fP, but gives more control about process execution to the
caller, and does does not detach the process.
.sp
You can avoid blocking until the process terminates by running this command
asynchronously. (For example \fBmp.command_native_async()\fP in Lua scripting.)
.sp
This has the following named arguments. The order of them is not guaranteed,
so you should always call them with named arguments, see \fI\%Named arguments\fP\&.
.INDENT 7.0
.TP
.B \fBargs\fP (\fBMPV_FORMAT_NODE_ARRAY[MPV_FORMAT_STRING]\fP)
Array of strings with the command as first argument, and subsequent
command line arguments following. This is just like the \fBrun\fP command
argument list.
.sp
The first array entry is either an absolute path to the executable, or
a filename with no path components, in which case the \fBPATH\fP
environment variable. On Unix, this is equivalent to \fBposix_spawnp\fP
and \fBexecvp\fP behavior.
.TP
.B \fBplayback_only\fP (\fBMPV_FORMAT_FLAG\fP)
Boolean indicating whether the process should be killed when playback
terminates (optional, default: yes). If enabled, stopping playback
will automatically kill the process, and you can\(aqt start it outside of
playback.
.TP
.B \fBcapture_size\fP (\fBMPV_FORMAT_INT64\fP)
Integer setting the maximum number of stdout plus stderr bytes that can
be captured (optional, default: 64MB). If the number of bytes exceeds
this, capturing is stopped. The limit is per captured stream.
.TP
.B \fBcapture_stdout\fP (\fBMPV_FORMAT_FLAG\fP)
Capture all data the process outputs to stdout and return it once the
process ends (optional, default: no).
.TP
.B \fBcapture_stderr\fP (\fBMPV_FORMAT_FLAG\fP)
Same as \fBcapture_stdout\fP, but for stderr.
.UNINDENT
.sp
The command returns the following result (as \fBMPV_FORMAT_NODE_MAP\fP):
.INDENT 7.0
.TP
.B \fBstatus\fP (\fBMPV_FORMAT_INT64\fP)
The raw exit status of the process. It will be negative on error. The
meaning of negative values is undefined, other than meaning error (and
does not necessarily correspond to OS low level exit status values).
.sp
On Windows, it can happen that a negative return value is returned
even if the process exits gracefully, because the win32 \fBUINT\fP exit
code is assigned to an \fBint\fP variable before being set as \fBint64_t\fP
field in the result map. This might be fixed later.
.TP
.B \fBstdout\fP (\fBMPV_FORMAT_BYTE_ARRAY\fP)
Captured stdout stream, limited to \fBcapture_size\fP\&.
.TP
.B \fBstderr\fP (\fBMPV_FORMAT_BYTE_ARRAY\fP)
Same as \fBstdout\fP, but for stderr.
.TP
.B \fBerror_string\fP (\fBMPV_FORMAT_STRING\fP)
Empty string if the process exited gracefully. The string \fBkilled\fP if
the process was terminated in an unusual way. The string \fBinit\fP if the
process could not be started.
.sp
On Windows, \fBkilled\fP is only returned when the process has been
killed by mpv as a result of \fBplayback_only\fP being set to \fByes\fP\&.
.TP
.B \fBkilled_by_us\fP (\fBMPV_FORMAT_FLAG\fP)
Set to \fByes\fP if the process has been killed by mpv, for example as a
result of \fBplayback_only\fP being set to \fByes\fP, aborting the command
(e.g. by \fBmp.abort_async_command()\fP), or if the player is about to
exit.
.UNINDENT
.sp
Note that the command itself will always return success as long as the
parameters are correct. Whether the process could be spawned or whether
it was somehow killed or returned an error status has to be queried from
the result value.
.sp
This command can be asynchronously aborted via API.
.sp
In all cases, the subprocess will be terminated on player exit. Also see
\fI\%Asynchronous command details\fP\&. Only the \fBrun\fP command can start
processes in a truly detached way.
.INDENT 7.0
.INDENT 3.5
.IP "Warning"
.sp
Don\(aqt forget to set the \fBplayback_only\fP field if you want the command
run while the player is in idle mode, or if you don\(aqt want that end of
playback kills the command.
.UNINDENT
.UNINDENT
.TP
.B \fBquit [<code>]\fP
Exit the player. If an argument is given, it\(aqs used as process exit code.
.TP
.B \fBquit\-watch\-later [<code>]\fP
Exit player, and store current playback position. Playing that file later
will seek to the previous position on start. The (optional) argument is
exactly as in the \fBquit\fP command.
.TP
.B \fBsub\-add <url> [<flags> [<title> [<lang>]]]\fP
Load the given subtitle file or stream. By default, it is selected as
current subtitle  after loading.
.sp
The \fBflags\fP argument is one of the following values:
.sp
<select>
.INDENT 7.0
.INDENT 3.5
Select the subtitle immediately (default).
.UNINDENT
.UNINDENT
.sp
<auto>
.INDENT 7.0
.INDENT 3.5
Don\(aqt select the subtitle. (Or in some special situations, let the
default stream selection mechanism decide.)
.UNINDENT
.UNINDENT
.sp
<cached>
.INDENT 7.0
.INDENT 3.5
Select the subtitle. If a subtitle with the same filename was already
added, that one is selected, instead of loading a duplicate entry.
(In this case, title/language are ignored, and if the was changed since
it was loaded, these changes won\(aqt be reflected.)
.UNINDENT
.UNINDENT
.sp
The \fBtitle\fP argument sets the track title in the UI.
.sp
The \fBlang\fP argument sets the track language, and can also influence
stream selection with \fBflags\fP set to \fBauto\fP\&.
.TP
.B \fBsub\-remove [<id>]\fP
Remove the given subtitle track. If the \fBid\fP argument is missing, remove
the current track. (Works on external subtitle files only.)
.TP
.B \fBsub\-reload [<id>]\fP
Reload the given subtitle tracks. If the \fBid\fP argument is missing, reload
the current track. (Works on external subtitle files only.)
.sp
This works by unloading and re\-adding the subtitle track.
.TP
.B \fBsub\-step <skip>\fP
Change subtitle timing such, that the subtitle event after the next
\fB<skip>\fP subtitle events is displayed. \fB<skip>\fP can be negative to step
backwards.
.TP
.B \fBsub\-seek <skip>\fP
Seek to the next (skip set to 1) or the previous (skip set to \-1) subtitle.
This is similar to \fBsub\-step\fP, except that it seeks video and audio
instead of adjusting the subtitle delay.
.sp
For embedded subtitles (like with Matroska), this works only with subtitle
events that have already been displayed, or are within a short prefetch
range.
.TP
.B \fBprint\-text <text>\fP
Print text to stdout. The string can contain properties (see
\fI\%Property Expansion\fP). Take care to put the argument in quotes.
.TP
.B \fBshow\-text <text> [<duration>|\-1 [<level>]]\fP
Show text on the OSD. The string can contain properties, which are expanded
as described in \fI\%Property Expansion\fP\&. This can be used to show playback
time, filename, and so on.
.INDENT 7.0
.TP
.B <duration>
The time in ms to show the message for. By default, it uses the same
value as \fB\-\-osd\-duration\fP\&.
.TP
.B <level>
The minimum OSD level to show the text at (see \fB\-\-osd\-level\fP).
.UNINDENT
.TP
.B \fBexpand\-text <string>\fP
Property\-expand the argument and return the expanded string. This can be
used only through the client API or from a script using
\fBmp.command_native\fP\&. (see \fI\%Property Expansion\fP).
.TP
.B \fBexpand\-path "<string>"\fP
Expand a path\(aqs double\-tilde placeholders into a platform\-specific path.
As \fBexpand\-text\fP, this can only be used through the client API or from
a script using \fBmp.command_native\fP\&.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fBmp.osd_message(mp.command_native({"expand\-path", "~~home/"}))\fP
.sp
This line of Lua would show the location of the user\(aqs mpv
configuration directory on the OSD.
.UNINDENT
.UNINDENT
.TP
.B \fBshow\-progress\fP
Show the progress bar, the elapsed time and the total duration of the file
on the OSD.
.TP
.B \fBwrite\-watch\-later\-config\fP
Write the resume config file that the \fBquit\-watch\-later\fP command writes,
but continue playback normally.
.TP
.B \fBstop\fP
Stop playback and clear playlist. With default settings, this is
essentially like \fBquit\fP\&. Useful for the client API: playback can be
stopped without terminating the player.
.TP
.B \fBmouse <x> <y> [<button> [<mode>]]\fP
Send a mouse event with given coordinate (\fB<x>\fP, \fB<y>\fP).
.sp
Second argument:
.INDENT 7.0
.TP
.B <button>
The button number of clicked mouse button. This should be one of 0\-19.
If \fB<button>\fP is omitted, only the position will be updated.
.UNINDENT
.sp
Third argument:
.INDENT 7.0
.TP
.B <single> (default)
The mouse event represents regular single click.
.TP
.B <double>
The mouse event represents double\-click.
.UNINDENT
.TP
.B \fBkeypress <name>\fP
Send a key event through mpv\(aqs input handler, triggering whatever
behavior is configured to that key. \fBname\fP uses the \fBinput.conf\fP
naming scheme for keys and modifiers. Useful for the client API: key events
can be sent to libmpv to handle internally.
.TP
.B \fBkeydown <name>\fP
Similar to \fBkeypress\fP, but sets the \fBKEYDOWN\fP flag so that if the key is
bound to a repeatable command, it will be run repeatedly with mpv\(aqs key
repeat timing until the \fBkeyup\fP command is called.
.TP
.B \fBkeyup [<name>]\fP
Set the \fBKEYUP\fP flag, stopping any repeated behavior that had been
triggered. \fBname\fP is optional. If \fBname\fP is not given or is an
empty string, \fBKEYUP\fP will be set on all keys. Otherwise, \fBKEYUP\fP will
only be set on the key specified by \fBname\fP\&.
.TP
.B \fBkeybind <name> <command>\fP
Binds a key to an input command. \fBcommand\fP must be a complete command
containing all the desired arguments and flags. Both \fBname\fP and
\fBcommand\fP use the \fBinput.conf\fP naming scheme. This is primarily
useful for the client API.
.TP
.B \fBaudio\-add <url> [<flags> [<title> [<lang>]]]\fP
Load the given audio file. See \fBsub\-add\fP command.
.TP
.B \fBaudio\-remove [<id>]\fP
Remove the given audio track. See \fBsub\-remove\fP command.
.TP
.B \fBaudio\-reload [<id>]\fP
Reload the given audio tracks. See \fBsub\-reload\fP command.
.TP
.B \fBvideo\-add <url> [<flags> [<title> [<lang>]]]\fP
Load the given video file. See \fBsub\-add\fP command.
.TP
.B \fBvideo\-remove [<id>]\fP
Remove the given video track. See \fBsub\-remove\fP command.
.TP
.B \fBvideo\-reload [<id>]\fP
Reload the given video tracks. See \fBsub\-reload\fP command.
.TP
.B \fBrescan\-external\-files [<mode>]\fP
Rescan external files according to the current \fB\-\-sub\-auto\fP and
\fB\-\-audio\-file\-auto\fP settings. This can be used to auto\-load external
files \fIafter\fP the file was loaded.
.sp
The \fBmode\fP argument is one of the following:
.INDENT 7.0
.TP
.B <reselect> (default)
Select the default audio and subtitle streams, which typically selects
external files with the highest preference. (The implementation is not
perfect, and could be improved on request.)
.TP
.B <keep\-selection>
Do not change current track selections.
.UNINDENT
.UNINDENT
.SS Input Commands that are Possibly Subject to Change
.INDENT 0.0
.TP
.B \fBaf <operation> <value>\fP
Change audio filter chain. See \fBvf\fP command.
.TP
.B \fBvf <operation> <value>\fP
Change video filter chain.
.sp
The semantics are exactly the same as with option parsing (see
\fI\%VIDEO FILTERS\fP). As such the text below is a redundant and incomplete
summary.
.sp
The first argument decides what happens:
.INDENT 7.0
.TP
.B <set>
Overwrite the previous filter chain with the new one.
.TP
.B <add>
Append the new filter chain to the previous one.
.TP
.B <toggle>
Check if the given filter (with the exact parameters) is already
in the video chain. If yes, remove the filter. If no, add the filter.
(If several filters are passed to the command, this is done for
each filter.)
.sp
A special variant is combining this with labels, and using \fB@name\fP
without filter name and parameters as filter entry. This toggles the
enable/disable flag.
.TP
.B <del>
Remove the given filters from the video chain. Unlike in the other
cases, the second parameter is a comma separated list of filter names
or integer indexes. \fB0\fP would denote the first filter. Negative
indexes start from the last filter, and \fB\-1\fP denotes the last
filter. Deprecated.
.TP
.B <clr>
Remove all filters. Note that like the other sub\-commands, this does
not control automatically inserted filters.
.UNINDENT
.sp
The argument is always needed. E.g. in case of \fBclr\fP use \fBvf clr ""\fP\&.
.sp
You can assign labels to filter by prefixing them with \fB@name:\fP (where
\fBname\fP is a user\-chosen arbitrary identifier). Labels can be used to
refer to filters by name in all of the filter chain modification commands.
For \fBadd\fP, using an already used label will replace the existing filter.
.sp
The \fBvf\fP command shows the list of requested filters on the OSD after
changing the filter chain. This is roughly equivalent to
\fBshow\-text ${vf}\fP\&. Note that auto\-inserted filters for format conversion
are not shown on the list, only what was requested by the user.
.sp
Normally, the commands will check whether the video chain is recreated
successfully, and will undo the operation on failure. If the command is run
before video is configured (can happen if the command is run immediately
after opening a file and before a video frame is decoded), this check can\(aqt
be run. Then it can happen that creating the video chain fails.
.INDENT 7.0
.INDENT 3.5
.IP "Example for input.conf"
.INDENT 0.0
.IP \(bu 2
\fBa vf set flip\fP turn video upside\-down on the \fBa\fP key
.IP \(bu 2
\fBb vf set ""\fP remove all video filters on \fBb\fP
.IP \(bu 2
\fBc vf toggle gradfun\fP toggle debanding on \fBc\fP
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 7.0
.INDENT 3.5
.IP "Example how to toggle disabled filters at runtime"
.INDENT 0.0
.IP \(bu 2
Add something like \fBvf\-add=@deband:!gradfun\fP to \fBmpv.conf\fP\&.
The \fB@deband:\fP is the label, an arbitrary, user\-given name for this
filter entry. The \fB!\fP before the filter name disables the filter by
default. Everything after this is the normal filter name and possibly
filter parameters, like in the normal \fB\-\-vf\fP syntax.
.IP \(bu 2
Add \fBa vf toggle @deband\fP to \fBinput.conf\fP\&. This toggles the
"disabled" flag for the filter with the label \fBdeband\fP when the
\fBa\fP key is hit.
.UNINDENT
.UNINDENT
.UNINDENT
.TP
.B \fBcycle\-values [<"!reverse">] <property> <value1> [<value2> [...]]\fP
Cycle through a list of values. Each invocation of the command will set the
given property to the next value in the list. The command will use the
current value of the property/option, and use it to determine the current
position in the list of values. Once it has found it, it will set the
next value in the list (wrapping around to the first item if needed).
.sp
This command has a variable number of arguments, and cannot be used with
named arguments.
.sp
The special argument \fB!reverse\fP can be used to cycle the value list in
reverse. The only advantage is that you don\(aqt need to reverse the value
list yourself when adding a second key binding for cycling backwards.
.TP
.B \fBenable\-section <name> [<flags>]\fP
This command is deprecated, except for mpv\-internal uses.
.sp
Enable all key bindings in the named input section.
.sp
The enabled input sections form a stack. Bindings in sections on the top of
the stack are preferred to lower sections. This command puts the section
on top of the stack. If the section was already on the stack, it is
implicitly removed beforehand. (A section cannot be on the stack more than
once.)
.sp
The \fBflags\fP parameter can be a combination (separated by \fB+\fP) of the
following flags:
.INDENT 7.0
.TP
.B <exclusive>
All sections enabled before the newly enabled section are disabled.
They will be re\-enabled as soon as all exclusive sections above them
are removed. In other words, the new section shadows all previous
sections.
.TP
.B <allow\-hide\-cursor>
This feature can\(aqt be used through the public API.
.TP
.B <allow\-vo\-dragging>
Same.
.UNINDENT
.TP
.B \fBdisable\-section <name>\fP
This command is deprecated, except for mpv\-internal uses.
.sp
Disable the named input section. Undoes \fBenable\-section\fP\&.
.TP
.B \fBdefine\-section <name> <contents> [<flags>]\fP
This command is deprecated, except for mpv\-internal uses.
.sp
Create a named input section, or replace the contents of an already existing
input section. The \fBcontents\fP parameter uses the same syntax as the
\fBinput.conf\fP file (except that using the section syntax in it is not
allowed), including the need to separate bindings with a newline character.
.sp
If the \fBcontents\fP parameter is an empty string, the section is removed.
.sp
The section with the name \fBdefault\fP is the normal input section.
.sp
In general, input sections have to be enabled with the \fBenable\-section\fP
command, or they are ignored.
.sp
The last parameter has the following meaning:
.INDENT 7.0
.TP
.B <default> (also used if parameter omitted)
Use a key binding defined by this section only if the user hasn\(aqt
already bound this key to a command.
.TP
.B <force>
Always bind a key. (The input section that was made active most recently
wins if there are ambiguities.)
.UNINDENT
.sp
This command can be used to dispatch arbitrary keys to a script or a client
API user. If the input section defines \fBscript\-binding\fP commands, it is
also possible to get separate events on key up/down, and relatively detailed
information about the key state. The special key name \fBunmapped\fP can be
used to match any unmapped key.
.TP
.B \fBoverlay\-add <id> <x> <y> <file> <offset> <fmt> <w> <h> <stride>\fP
Add an OSD overlay sourced from raw data. This might be useful for scripts
and applications controlling mpv, and which want to display things on top
of the video window.
.sp
Overlays are usually displayed in screen resolution, but with some VOs,
the resolution is reduced to that of the video\(aqs. You can read the
\fBosd\-width\fP and \fBosd\-height\fP properties. At least with \fB\-\-vo\-xv\fP and
anamorphic video (such as DVD), \fBosd\-par\fP should be read as well, and the
overlay should be aspect\-compensated.
.sp
This has the following named arguments. The order of them is not guaranteed,
so you should always call them with named arguments, see \fI\%Named arguments\fP\&.
.sp
\fBid\fP is an integer between 0 and 63 identifying the overlay element. The
ID can be used to add multiple overlay parts, update a part by using this
command with an already existing ID, or to remove a part with
\fBoverlay\-remove\fP\&. Using a previously unused ID will add a new overlay,
while reusing an ID will update it.
.sp
\fBx\fP and \fBy\fP specify the position where the OSD should be displayed.
.sp
\fBfile\fP specifies the file the raw image data is read from. It can be
either a numeric UNIX file descriptor prefixed with \fB@\fP (e.g. \fB@4\fP),
or a filename. The file will be mapped into memory with \fBmmap()\fP,
copied, and unmapped before the command returns (changed in mpv 0.18.1).
.sp
It is also possible to pass a raw memory address for use as bitmap memory
by passing a memory address as integer prefixed with an \fB&\fP character.
Passing the wrong thing here will crash the player. This mode might be
useful for use with libmpv. The \fBoffset\fP parameter is simply added to the
memory address (since mpv 0.8.0, ignored before).
.sp
\fBoffset\fP is the byte offset of the first pixel in the source file.
(The current implementation always mmap\(aqs the whole file from position 0 to
the end of the image, so large offsets should be avoided. Before mpv 0.8.0,
the offset was actually passed directly to \fBmmap\fP, but it was changed to
make using it easier.)
.sp
\fBfmt\fP is a string identifying the image format. Currently, only \fBbgra\fP
is defined. This format has 4 bytes per pixels, with 8 bits per component.
The least significant 8 bits are blue, and the most significant 8 bits
are alpha (in little endian, the components are B\-G\-R\-A, with B as first
byte). This uses premultiplied alpha: every color component is already
multiplied with the alpha component. This means the numeric value of each
component is equal to or smaller than the alpha component. (Violating this
rule will lead to different results with different VOs: numeric overflows
resulting from blending broken alpha values is considered something that
shouldn\(aqt happen, and consequently implementations don\(aqt ensure that you
get predictable behavior in this case.)
.sp
\fBw\fP, \fBh\fP, and \fBstride\fP specify the size of the overlay. \fBw\fP is the
visible width of the overlay, while \fBstride\fP gives the width in bytes in
memory. In the simple case, and with the \fBbgra\fP format, \fBstride==4*w\fP\&.
In general, the total amount of memory accessed is \fBstride * h\fP\&.
(Technically, the minimum size would be \fBstride * (h \- 1) + w * 4\fP, but
for simplicity, the player will access all \fBstride * h\fP bytes.)
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Before mpv 0.18.1, you had to do manual "double buffering" when updating
an overlay by replacing it with a different memory buffer. Since mpv
0.18.1, the memory is simply copied and doesn\(aqt reference any of the
memory indicated by the command\(aqs arguments after the commend returns.
If you want to use this command before mpv 0.18.1, reads the old docs
to see how to handle this correctly.
.UNINDENT
.UNINDENT
.TP
.B \fBoverlay\-remove <id>\fP
Remove an overlay added with \fBoverlay\-add\fP and the same ID. Does nothing
if no overlay with this ID exists.
.TP
.B \fBosd\-overlay\fP
Add/update/remove an OSD overlay.
.sp
(Although this sounds similar to \fBoverlay\-add\fP, \fBosd\-overlay\fP is for
text overlays, while \fBoverlay\-add\fP is for bitmaps. Maybe \fBoverlay\-add\fP
will be merged into \fBosd\-overlay\fP to remove this oddity.)
.sp
You can use this to add text overlays in ASS format. ASS has advanced
positioning and rendering tags, which can be used to render almost any kind
of vector graphics.
.sp
This command accepts the following parameters:
.INDENT 7.0
.TP
.B \fBid\fP
Arbitrary integer that identifies the overlay. Multiple overlays can be
added by calling this command with different \fBid\fP parameters. Calling
this command with the same \fBid\fP replaces the previously set overlay.
.sp
There is a separate namespace for each libmpv client (i.e. IPC
connection, script), so IDs can be made up and assigned by the API user
without conflicting with other API users.
.sp
If the libmpv client is destroyed, all overlays associated with it are
also deleted. In particular, connecting via \fB\-\-input\-ipc\-server\fP,
adding an overlay, and disconnecting will remove the overlay immediately
again.
.TP
.B \fBformat\fP
String that gives the type of the overlay. Accepts the following values:
.INDENT 7.0
.TP
.B \fBass\-events\fP
The \fBdata\fP parameter is a string. The string is split on the
newline character. Every line is turned into the \fBText\fP part of
a \fBDialogue\fP ASS event. Timing is unused (but behavior of timing
dependent ASS tags may change in future mpv versions).
.sp
Note that it\(aqs better to put multiple lines into \fBdata\fP, instead
of adding multiple OSD overlays.
.sp
This provides 2 ASS \fBStyles\fP\&. \fBOSD\fP contains the text style as
defined by the current \fB\-\-osd\-...\fP options. \fBDefault\fP is
similar, and contains style that \fBOSD\fP would have if all options
were set to the default.
.sp
In addition, the \fBres_x\fP and \fBres_y\fP options specify the value
of the ASS \fBPlayResX\fP and \fBPlayResY\fP header fields. If \fBres_y\fP
is set to 0, \fBPlayResY\fP is initialized to an arbitrary default
value (but note that the default for this command is 720, not 0).
If \fBres_x\fP is set to 0, \fBPlayResX\fP is set based on \fBres_y\fP
such that a virtual ASS pixel has a square pixel aspect ratio.
.TP
.B \fBnone\fP
Special value that causes the overlay to be removed. Most parameters
other than \fBid\fP and \fBformat\fP are mostly ignored.
.UNINDENT
.TP
.B \fBdata\fP
String defining the overlay contents according to the \fBformat\fP
parameter.
.TP
.B \fBres_x\fP, \fBres_y\fP
Used if \fBformat\fP is set to \fBass\-events\fP (see description there).
Optional, defaults to 0/720.
.TP
.B \fBz\fP
The Z order of the overlay. Optional, defaults to 0.
.sp
Note that Z order between different overlays of different formats is
static, and cannot be changed (currently, this means that bitmap
overlays added by \fBoverlay\-add\fP are always on top of the ASS overlays
added by \fBosd\-overlay\fP). In addition, the builtin OSD components are
always below any of the custom OSD. (This includes subtitles of any kind
as well as text rendered by \fBshow\-text\fP\&.)
.sp
It\(aqs possible that future mpv versions will randomly change how Z order
between different OSD formats and builtin OSD is handled.
.UNINDENT
.sp
Note: always use named arguments (\fBmpv_command_node()\fP). Scripts should
use the \fBmp.create_osd_overlay()\fP helper instead of invoking this command
directly.
.TP
.B \fBscript\-message [<arg1> [<arg2> [...]]]\fP
Send a message to all clients, and pass it the following list of arguments.
What this message means, how many arguments it takes, and what the arguments
mean is fully up to the receiver and the sender. Every client receives the
message, so be careful about name clashes (or use \fBscript\-message\-to\fP).
.sp
This command has a variable number of arguments, and cannot be used with
named arguments.
.TP
.B \fBscript\-message\-to <target> [<arg1> [<arg2> [...]]]\fP
Same as \fBscript\-message\fP, but send it only to the client named
\fB<target>\fP\&. Each client (scripts etc.) has a unique name. For example,
Lua scripts can get their name via \fBmp.get_script_name()\fP\&.
.sp
This command has a variable number of arguments, and cannot be used with
named arguments.
.TP
.B \fBscript\-binding <name>\fP
Invoke a script\-provided key binding. This can be used to remap key
bindings provided by external Lua scripts.
.sp
The argument is the name of the binding.
.sp
It can optionally be prefixed with the name of the script, using \fB/\fP as
separator, e.g. \fBscript\-binding scriptname/bindingname\fP\&.
.sp
For completeness, here is how this command works internally. The details
could change any time. On any matching key event, \fBscript\-message\-to\fP
or \fBscript\-message\fP is called (depending on whether the script name is
included), with the following arguments:
.INDENT 7.0
.IP 1. 3
The string \fBkey\-binding\fP\&.
.IP 2. 3
The name of the binding (as established above).
.IP 3. 3
The key state as string (see below).
.IP 4. 3
The key name (since mpv 0.15.0).
.IP 5. 3
The text the key would produce, or empty string if not applicable.
.UNINDENT
.sp
The 5th argument is only set if no modifiers are present (using the shift
key with a letter is normally not emitted as having a modifier, and results
in upper case text instead, but some backends may mess up).
.sp
The key state consists of 2 characters:
.INDENT 7.0
.IP 1. 3
One of \fBd\fP (key was pressed down), \fBu\fP (was released), \fBr\fP (key
is still down, and was repeated; only if key repeat is enabled for this
binding), \fBp\fP (key was pressed; happens if up/down can\(aqt be tracked).
.IP 2. 3
Whether the event originates from the mouse, either \fBm\fP (mouse button)
or \fB\-\fP (something else).
.UNINDENT
.sp
Future versions can add more arguments and more key state characters to
support more input peculiarities.
.TP
.B \fBab\-loop\fP
Cycle through A\-B loop states. The first command will set the \fBA\fP point
(the \fBab\-loop\-a\fP property); the second the \fBB\fP point, and the third
will clear both points.
.TP
.B \fBdrop\-buffers\fP
Drop audio/video/demuxer buffers, and restart from fresh. Might help with
unseekable streams that are going out of sync.
This command might be changed or removed in the future.
.TP
.B \fBscreenshot\-raw [<flags>]\fP
Return a screenshot in memory. This can be used only through the client
API. The MPV_FORMAT_NODE_MAP returned by this command has the \fBw\fP, \fBh\fP,
\fBstride\fP fields set to obvious contents. The \fBformat\fP field is set to
\fBbgr0\fP by default. This format is organized as \fBB8G8R8X8\fP (where \fBB\fP
is the LSB). The contents of the padding \fBX\fP are undefined. The \fBdata\fP
field is of type MPV_FORMAT_BYTE_ARRAY with the actual image data. The image
is freed as soon as the result mpv_node is freed. As usual with client API
semantics, you are not allowed to write to the image data.
.sp
The \fBstride\fP is the number of bytes from a pixel at \fB(x0, y0)\fP to the
pixel at \fB(x0, y0 + 1)\fP\&. This can be larger than \fBw * 4\fP if the image
was cropped, or if there is padding. This number can be negative as well.
You access a pixel with \fBbyte_index = y * stride + x * 4\fP (assuming the
\fBbgr0\fP format).
.sp
The \fBflags\fP argument is like the first argument to \fBscreenshot\fP and
supports \fBsubtitles\fP, \fBvideo\fP, \fBwindow\fP\&.
.TP
.B \fBvf\-command <label> <command> <argument>\fP
Send a command to the filter with the given \fB<label>\fP\&. Use \fBall\fP to send
it to all filters at once. The command and argument string is filter
specific. Currently, this only works with the \fBlavfi\fP filter \- see
the libavfilter documentation for which commands a filter supports.
.sp
Note that the \fB<label>\fP is a mpv filter label, not a libavfilter filter
name.
.TP
.B \fBaf\-command <label> <command> <argument>\fP
Same as \fBvf\-command\fP, but for audio filters.
.TP
.B \fBapply\-profile <name>\fP
Apply the contents of a named profile. This is like using \fBprofile=name\fP
in a config file, except you can map it to a key binding to change it at
runtime.
.sp
There is no such thing as "unapplying" a profile \- applying a profile
merely sets all option values listed within the profile.
.TP
.B \fBload\-script <filename>\fP
Load a script, similar to the \fB\-\-script\fP option. Whether this waits for
the script to finish initialization or not changed multiple times, and the
future behavior is left undefined.
.TP
.B \fBchange\-list <name> <operation> <value>\fP
This command changes list options as described in \fI\%List Options\fP\&. The
\fB<name>\fP parameter is the normal option name, while \fB<operation>\fP is
the suffix or action used on the option.
.sp
Some operations take no value, but the command still requires the value
parameter. In these cases, the value must be an empty string.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
\fBchange\-list glsl\-shaders append file.glsl\fP
.sp
Add a filename to the \fBglsl\-shaders\fP list. The command line
equivalent is \fB\-\-glsl\-shaders\-append=file.glsl\fP or alternatively
\fB\-\-glsl\-shader=file.glsl\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fBdump\-cache <start> <end> <filename>\fP
Dump the current cache to the given filename. The \fB<filename>\fP file is
overwritten if it already exists. \fB<start>\fP and \fB<end>\fP give the
time range of what to dump. If no data is cached at the given time range,
nothing may be dumped (creating a file with no packets).
.sp
Dumping a larger part of the cache will freeze the player. No effort was
made to fix this, as this feature was meant mostly for creating small
excerpts.
.sp
See \fB\-\-stream\-record\fP for various caveats that mostly apply to this
command too, as both use the same underlying code for writing the output
file.
.sp
If \fB<filename>\fP is an empty string, an ongoing \fBdump\-cache\fP is stopped.
.sp
If \fB<end>\fP is \fBno\fP, then continuous dumping is enabled. Then, after
dumping the existing parts of the cache, anything read from network is
appended to the cache as well. This behaves similar to \fB\-\-stream\-record\fP
(although it does not conflict with that option, and they can be both active
at the same time).
.sp
If the \fB<end>\fP time is after the cache, the command will _not_ wait and
write newly received data to it.
.sp
The end of the resulting file may be slightly damaged or incomplete at the
end. (Not enough effort was made to ensure that the end lines up properly.)
.sp
Note that this command will finish only once dumping ends. That means it
works similar to the \fBscreenshot\fP command, just that it can block much
longer. If continuous dumping is used, the command will not finish until
playback is stopped, an error happens, another \fBdump\-cache\fP command is
run, or an API like \fBmp.abort_async_command\fP was called to explicitly stop
the command. See \fI\%Synchronous vs. Asynchronous\fP\&.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This was mostly created for network streams. For local files, there may
be much better methods to create excerpts and such. There are tons of
much more user\-friendly Lua scripts, that will reencode parts of a file
by spawning a separate instance of \fBffmpeg\fP\&. With network streams,
this is not that easily possible, as the stream would have to be
downloaded again. Even if \fB\-\-stream\-record\fP is used to record the
stream to the local filesystem, there may be problems, because the
recorded file is still written to.
.UNINDENT
.UNINDENT
.sp
This command is experimental, and all details about it may change in the
future.
.TP
.B \fBab\-loop\-dump\-cache <filename>\fP
Essentially calls \fBdump\-cache\fP with the current AB\-loop points as
arguments. Like \fBdump\-cache\fP, this will overwrite the file at
\fB<filename>\fP\&. Likewise, if the B point is set to \fBno\fP, it will enter
continuous dumping after the existing cache was dumped.
.sp
The author reserves the right to remove this command if enough motivation
is found to move this functionality to a trivial Lua script.
.TP
.B \fBab\-loop\-align\-cache\fP
Re\-adjust the A/B loop points to the start and end within the cache the
\fBab\-loop\-dump\-cache\fP command will (probably) dump. Basically, it aligns
the times on keyframes. The guess might be off especially at the end (due to
granularity issues due to remuxing). If the cache shrinks in the meantime,
the points set by the command will not be the effective parameters either.
.sp
This command has an even more uncertain future than \fBab\-loop\-dump\-cache\fP
and might disappear without replacement if the author decides it\(aqs useless.
.UNINDENT
.sp
Undocumented commands: \fBao\-reload\fP (experimental/internal).
.SS Hooks
.sp
Hooks are synchronous events between player core and a script or similar. This
applies to client API (including the Lua scripting interface). Normally,
events are supposed to be asynchronous, and the hook API provides an awkward
and obscure way to handle events that require stricter coordination. There are
no API stability guarantees made. Not following the protocol exactly can make
the player freeze randomly. Basically, nobody should use this API.
.sp
The C API is described in the header files. The Lua API is described in the
Lua section.
.sp
The following hooks are currently defined:
.INDENT 0.0
.TP
.B \fBon_load\fP
Called when a file is to be opened, before anything is actually done.
For example, you could read and write the \fBstream\-open\-filename\fP
property to redirect an URL to something else (consider support for
streaming sites which rarely give the user a direct media URL), or
you could set per\-file options with by setting the property
\fBfile\-local\-options/<option name>\fP\&. The player will wait until all
hooks are run.
.TP
.B \fBon_load_fail\fP
Called after after a file has been opened, but failed to. This can be
used to provide a fallback in case native demuxers failed to recognize
the file, instead of always running before the native demuxers like
\fBon_load\fP\&. Demux will only be retried if \fBstream\-open\-filename\fP
was changed.
.TP
.B \fBon_preloaded\fP
Called after a file has been opened, and before tracks are selected and
decoders are created. This has some usefulness if an API users wants
to select tracks manually, based on the set of available tracks. It\(aqs
also useful to initialize \fB\-\-lavfi\-complex\fP in a specific way by API,
without having to "probe" the available streams at first.
.sp
Note that this does not yet apply default track selection. Which operations
exactly can be done and not be done, and what information is available and
what is not yet available yet, is all subject to change.
.TP
.B \fBon_unload\fP
Run before closing a file, and before actually uninitializing
everything. It\(aqs not possible to resume playback in this state.
.UNINDENT
.SS Legacy hook API
.sp
\fBWARNING:\fP
.INDENT 0.0
.INDENT 3.5
The legacy API is deprecated and will be removed soon.
.UNINDENT
.UNINDENT
.sp
There are two special commands involved. Also, the client must listen for
client messages (\fBMPV_EVENT_CLIENT_MESSAGE\fP in the C API).
.INDENT 0.0
.TP
.B \fBhook\-add <hook\-name> <id> <priority>\fP
Subscribe to the hook identified by the first argument (basically, the
name of event). The \fBid\fP argument is an arbitrary integer chosen by the
user. \fBpriority\fP is used to sort all hook handlers globally across all
clients. Each client can register multiple hook handlers (even for the
same hook\-name). Once the hook is registered, it cannot be unregistered.
.sp
When a specific event happens, all registered handlers are run serially.
This uses a protocol every client has to follow explicitly. When a hook
handler is run, a client message (\fBMPV_EVENT_CLIENT_MESSAGE\fP) is sent to
the client which registered the hook. This message has the following
arguments:
.INDENT 7.0
.IP 1. 3
the string \fBhook_run\fP
.IP 2. 3
the \fBid\fP argument the hook was registered with as string (this can be
used to correctly handle multiple hooks registered by the same client,
as long as the \fBid\fP argument is unique in the client)
.IP 3. 3
something undefined, used by the hook mechanism to track hook execution
.UNINDENT
.sp
Upon receiving this message, the client can handle the event. While doing
this, the player core will still react to requests, but playback will
typically be stopped.
.sp
When the client is done, it must continue the core\(aqs hook execution by
running the \fBhook\-ack\fP command.
.TP
.B \fBhook\-ack <string>\fP
Run the next hook in the global chain of hooks. The argument is the 3rd
argument of the client message that starts hook execution for the
current client.
.UNINDENT
.SS Input Command Prefixes
.sp
These prefixes are placed between key name and the actual command. Multiple
prefixes can be specified. They are separated by whitespace.
.INDENT 0.0
.TP
.B \fBosd\-auto\fP
Use the default behavior for this command. This is the default for
\fBinput.conf\fP commands. Some libmpv/scripting/IPC APIs do not use this as
default, but use \fBno\-osd\fP instead.
.TP
.B \fBno\-osd\fP
Do not use any OSD for this command.
.TP
.B \fBosd\-bar\fP
If possible, show a bar with this command. Seek commands will show the
progress bar, property changing commands may show the newly set value.
.TP
.B \fBosd\-msg\fP
If possible, show an OSD message with this command. Seek command show
the current playback time, property changing commands show the newly set
value as text.
.TP
.B \fBosd\-msg\-bar\fP
Combine osd\-bar and osd\-msg.
.TP
.B \fBraw\fP
Do not expand properties in string arguments. (Like \fB"${property\-name}"\fP\&.)
This is the default for some libmpv/scripting/IPC APIs.
.TP
.B \fBexpand\-properties\fP
All string arguments are expanded as described in \fI\%Property Expansion\fP\&.
This is the default for \fBinput.conf\fP commands.
.TP
.B \fBrepeatable\fP
For some commands, keeping a key pressed doesn\(aqt run the command repeatedly.
This prefix forces enabling key repeat in any case.
.TP
.B \fBasync\fP
Allow asynchronous execution (if possible). Note that only a few commands
will support this (usually this is explicitly documented). Some commands
are asynchronous by default (or rather, their effects might manifest
after completion of the command). The semantics of this flag might change
in the future. Set it only if you don\(aqt rely on the effects of this command
being fully realized when it returns. See \fI\%Synchronous vs. Asynchronous\fP\&.
.TP
.B \fBsync\fP
Allow synchronous execution (if possible). Normally, all commands are
synchronous by default, but some are asynchronous by default for
compatibility with older behavior.
.UNINDENT
.sp
All of the osd prefixes are still overridden by the global \fB\-\-osd\-level\fP
settings.
.SS Synchronous vs. Asynchronous
.sp
The \fBasync\fP and \fBsync\fP prefix matter only for how the issuer of the command
waits on the completion of the command. Normally it does not affect how the
command behaves by itself. There are the following cases:
.INDENT 0.0
.IP \(bu 2
Normal input.conf commands are always run asynchronously. Slow running
commands are queued up or run in parallel.
.IP \(bu 2
"Multi" input.conf commands (1 key binding, concatenated with \fB;\fP) will be
executed in order, except for commands that are async (either prefixed with
\fBasync\fP, or async by default for some commands). The async commands are
run in a detached manner, possibly in parallel to the remaining sync commands
in the list.
.IP \(bu 2
Normal Lua and libmpv commands (e.g. \fBmpv_command()\fP) are run in a blocking
manner, unless the \fBasync\fP prefix is used, or the command is async by
default. This means in the sync case the caller will block, even if the core
continues playback. Async mode runs the command in a detached manner.
.IP \(bu 2
Async libmpv command API (e.g. \fBmpv_command_async()\fP) never blocks the
caller, and always notify their completion with a message. The \fBsync\fP and
\fBasync\fP prefixes make no difference.
.IP \(bu 2
Lua also provides APIs for running async commands, which behave similar to the
C counterparts.
.IP \(bu 2
In all cases, async mode can still run commands in a synchronous manner, even
in detached mode. This can for example happen in cases when a command does not
have an  asynchronous implementation. The async libmpv API still never blocks
the caller in these cases.
.UNINDENT
.sp
Before mpv 0.29.0, the \fBasync\fP prefix was only used by screenshot commands,
and made them run the file saving code in a detached manner. This is the
default now, and \fBasync\fP changes behavior only in the ways mentioned above.
.sp
Currently the following commands have different waiting characteristics with
sync vs. async: sub\-add, audio\-add, sub\-reload, audio\-reload,
rescan\-external\-files, screenshot, screenshot\-to\-file, dump\-cache,
ab\-loop\-dump\-cache.
.SS Asynchronous command details
.sp
On the API level, every asynchronous command is bound to the context which
started it. For example, an asynchronous command started by \fBmpv_command_async\fP
is bound to the \fBmpv_handle\fP passed to the function. Only this \fBmpv_handle\fP
receives the completion notification (\fBMPV_EVENT_COMMAND_REPLY\fP), and only
this handle can abort a still running command directly. If the \fBmpv_handle\fP is
destroyed, any still running async. commands started by it are terminated.
.sp
The scripting APIs and JSON IPC give each script/connection its own implicit
\fBmpv_handle\fP\&.
.sp
If the player is closed, the core may abort all pending async. commands on its
own (like a forced \fBmpv_abort_async_command()\fP call for each pending command
on behalf of the API user). This happens at the same time \fBMPV_EVENT_SHUTDOWN\fP
is sent, and there is no way to prevent this.
.SS Input Sections
.sp
Input sections group a set of bindings, and enable or disable them at once.
In \fBinput.conf\fP, each key binding is assigned to an input section, rather
than actually having explicit text sections.
.sp
See also: \fBenable\-section\fP and \fBdisable\-section\fP commands.
.sp
Predefined bindings:
.INDENT 0.0
.TP
.B \fBdefault\fP
Bindings without input section are implicitly assigned to this section. It
is enabled by default during normal playback.
.TP
.B \fBencode\fP
Section which is active in encoding mode. It is enabled exclusively, so
that bindings in the \fBdefault\fP sections are ignored.
.UNINDENT
.SS Properties
.sp
Properties are used to set mpv options during runtime, or to query arbitrary
information. They can be manipulated with the \fBset\fP/\fBadd\fP/\fBcycle\fP
commands, and retrieved with \fBshow\-text\fP, or anything else that uses property
expansion. (See \fI\%Property Expansion\fP\&.)
.sp
The property name is annotated with RW to indicate whether the property is
generally writable.
.sp
If an option is referenced, the property will normally take/return exactly the
same values as the option. In these cases, properties are merely a way to change
an option at runtime.
.SS Property list
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
Most options can be set as runtime via properties as well. Just remove the
leading \fB\-\-\fP from the option name. These are not documented. Only
properties which do not exist as option with the same name, or which have
very different behavior from the options are documented below.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \fBaudio\-speed\-correction\fP, \fBvideo\-speed\-correction\fP
Factor multiplied with \fBspeed\fP at which the player attempts to play the
file. Usually it\(aqs exactly 1. (Display sync mode will make this useful.)
.sp
OSD formatting will display it in the form of \fB+1.23456%\fP, with the number
being \fB(raw \- 1) * 100\fP for the given raw property value.
.TP
.B \fBdisplay\-sync\-active\fP
Return whether \fB\-\-video\-sync=display\fP is actually active.
.TP
.B \fBfilename\fP
Currently played file, with path stripped. If this is an URL, try to undo
percent encoding as well. (The result is not necessarily correct, but
looks better for display purposes. Use the \fBpath\fP property to get an
unmodified filename.)
.sp
This has a sub\-property:
.INDENT 7.0
.TP
.B \fBfilename/no\-ext\fP
Like the \fBfilename\fP property, but if the text contains a \fB\&.\fP, strip
all text after the last \fB\&.\fP\&. Usually this removes the file extension.
.UNINDENT
.TP
.B \fBfile\-size\fP
Length in bytes of the source file/stream. (This is the same as
\fB${stream\-end}\fP\&. For segmented/multi\-part files, this will return the
size of the main or manifest file, whatever it is.)
.TP
.B \fBestimated\-frame\-count\fP
Total number of frames in current file.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This is only an estimate. (It\(aqs computed from two unreliable
quantities: fps and stream length.)
.UNINDENT
.UNINDENT
.TP
.B \fBestimated\-frame\-number\fP
Number of current frame in current stream.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
This is only an estimate. (It\(aqs computed from two unreliable
quantities: fps and possibly rounded timestamps.)
.UNINDENT
.UNINDENT
.TP
.B \fBpath\fP
Full path of the currently played file. Usually this is exactly the same
string you pass on the mpv command line or the \fBloadfile\fP command, even
if it\(aqs a relative path. If you expect an absolute path, you will have to
determine it yourself, for example by using the \fBworking\-directory\fP
property.
.TP
.B \fBstream\-open\-filename\fP
The full path to the currently played media. This is different only from
\fBpath\fP in special cases. In particular, if \fB\-\-ytdl=yes\fP is used, and
the URL is detected by \fByoutube\-dl\fP, then the script will set this
property to the actual media URL. This property should be set only during
the \fBon_load\fP or \fBon_load_fail\fP hooks, otherwise it will have no effect
(or may do something implementation defined in the future). The property is
reset if playback of the current media ends.
.TP
.B \fBmedia\-title\fP
If the currently played file has a \fBtitle\fP tag, use that.
.sp
Otherwise, return the \fBfilename\fP property.
.TP
.B \fBfile\-format\fP
Symbolic name of the file format. In some cases, this is a comma\-separated
list of format names, e.g. mp4 is \fBmov,mp4,m4a,3gp,3g2,mj2\fP (the list
may grow in the future for any format).
.TP
.B \fBcurrent\-demuxer\fP
Name of the current demuxer. (This is useless.)
.sp
(Renamed from \fBdemuxer\fP\&.)
.TP
.B \fBstream\-path\fP
Filename (full path) of the stream layer filename. (This is probably
useless and is almost never different from \fBpath\fP\&.)
.TP
.B \fBstream\-pos\fP
Raw byte position in source stream. Technically, this returns the position
of the most recent packet passed to a decoder.
.TP
.B \fBstream\-end\fP
Raw end position in bytes in source stream.
.TP
.B \fBduration\fP
Duration of the current file in seconds. If the duration is unknown, the
property is unavailable. Note that the file duration is not always exactly
known, so this is an estimate.
.sp
This replaces the \fBlength\fP property, which was deprecated after the
mpv 0.9 release. (The semantics are the same.)
.TP
.B \fBavsync\fP
Last A/V synchronization difference. Unavailable if audio or video is
disabled.
.TP
.B \fBtotal\-avsync\-change\fP
Total A\-V sync correction done. Unavailable if audio or video is
disabled.
.TP
.B \fBdecoder\-frame\-drop\-count\fP
Video frames dropped by decoder, because video is too far behind audio (when
using \fB\-\-framedrop=decoder\fP). Sometimes, this may be incremented in other
situations, e.g. when video packets are damaged, or the decoder doesn\(aqt
follow the usual rules. Unavailable if video is disabled.
.sp
\fBdrop\-frame\-count\fP is a deprecated alias.
.TP
.B \fBframe\-drop\-count\fP
Frames dropped by VO (when using \fB\-\-framedrop=vo\fP).
.sp
\fBvo\-drop\-frame\-count\fP is a deprecated alias.
.TP
.B \fBmistimed\-frame\-count\fP
Number of video frames that were not timed correctly in display\-sync mode
for the sake of keeping A/V sync. This does not include external
circumstances, such as video rendering being too slow or the graphics
driver somehow skipping a vsync. It does not include rounding errors either
(which can happen especially with bad source timestamps). For example,
using the \fBdisplay\-desync\fP mode should never change this value from 0.
.TP
.B \fBvsync\-ratio\fP
For how many vsyncs a frame is displayed on average. This is available if
display\-sync is active only. For 30 FPS video on a 60 Hz screen, this will
be 2. This is the moving average of what actually has been scheduled, so
24 FPS on 60 Hz will never remain exactly on 2.5, but jitter depending on
the last frame displayed.
.TP
.B \fBvo\-delayed\-frame\-count\fP
Estimated number of frames delayed due to external circumstances in
display\-sync mode. Note that in general, mpv has to guess that this is
happening, and the guess can be inaccurate.
.TP
.B \fBpercent\-pos\fP (RW)
Position in current file (0\-100). The advantage over using this instead of
calculating it out of other properties is that it properly falls back to
estimating the playback position from the byte position, if the file
duration is not known.
.TP
.B \fBtime\-pos\fP (RW)
Position in current file in seconds.
.TP
.B \fBtime\-start\fP
Deprecated. Always returns 0. Before mpv 0.14, this used to return the start
time of the file (could affect e.g. transport streams). See
\fB\-\-rebase\-start\-time\fP option.
.TP
.B \fBtime\-remaining\fP
Remaining length of the file in seconds. Note that the file duration is not
always exactly known, so this is an estimate.
.TP
.B \fBaudio\-pts\fP (R)
Current audio playback position in current file in seconds. Unlike time\-pos,
this updates more often than once per frame. For audio\-only files, it is
mostly equivalent to time\-pos, while for video\-only files this property is
not available.
.TP
.B \fBplaytime\-remaining\fP
\fBtime\-remaining\fP scaled by the current \fBspeed\fP\&.
.TP
.B \fBplayback\-time\fP (RW)
Position in current file in seconds. Unlike \fBtime\-pos\fP, the time is
clamped to the range of the file. (Inaccurate file durations etc. could
make it go out of range. Useful on attempts to seek outside of the file,
as the seek target time is considered the current position during seeking.)
.TP
.B \fBchapter\fP (RW)
Current chapter number. The number of the first chapter is 0.
.TP
.B \fBedition\fP (RW)
Current MKV edition number. Setting this property to a different value will
restart playback. The number of the first edition is 0.
.sp
Before mpv 0.31.0, this showed the actual edition selected at runtime, if
you didn\(aqt set the option or property manually. With mpv 0.31.0 and later,
this strictly returns the user\-set option or property value, and the
\fBcurrent\-edition\fP property was added to return the runtime selected
edition (this matters with \fB\-\-edition=auto\fP, the default).
.TP
.B \fBcurrent\-edition\fP
Currently selected edition. This property is unavailable if no file is
loaded, or the file has no editions. (Matroska files make a difference
between having no editions and a single edition, which will be reflected by
the property, although in practice it does not matter.)
.TP
.B \fBchapters\fP
Number of chapters.
.TP
.B \fBeditions\fP
Number of MKV editions.
.TP
.B \fBedition\-list\fP
List of editions, current entry marked. Currently, the raw property value
is useless.
.sp
This has a number of sub\-properties. Replace \fBN\fP with the 0\-based edition
index.
.INDENT 7.0
.TP
.B \fBedition\-list/count\fP
Number of editions. If there are no editions, this can be 0 or 1 (1
if there\(aqs a useless dummy edition).
.TP
.B \fBedition\-list/N/id\fP
Edition ID as integer. Use this to set the \fBedition\fP property.
Currently, this is the same as the edition index.
.TP
.B \fBedition\-list/N/default\fP
\fByes\fP if this is the default edition, \fBno\fP otherwise.
.TP
.B \fBedition\-list/N/title\fP
Edition title as stored in the file. Not always available.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each edition)
        "id"                MPV_FORMAT_INT64
        "title"             MPV_FORMAT_STRING
        "default"           MPV_FORMAT_FLAG
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBmetadata\fP
Metadata key/value pairs.
.sp
If the property is accessed with Lua\(aqs \fBmp.get_property_native\fP, this
returns a table with metadata keys mapping to metadata values. If it is
accessed with the client API, this returns a \fBMPV_FORMAT_NODE_MAP\fP,
with tag keys mapping to tag values.
.sp
For OSD, it returns a formatted list. Trying to retrieve this property as
a raw string doesn\(aqt work.
.sp
This has a number of sub\-properties:
.INDENT 7.0
.TP
.B \fBmetadata/by\-key/<key>\fP
Value of metadata entry \fB<key>\fP\&.
.TP
.B \fBmetadata/list/count\fP
Number of metadata entries.
.TP
.B \fBmetadata/list/N/key\fP
Key name of the Nth metadata entry. (The first entry is \fB0\fP).
.TP
.B \fBmetadata/list/N/value\fP
Value of the Nth metadata entry.
.TP
.B \fBmetadata/<key>\fP
Old version of \fBmetadata/by\-key/<key>\fP\&. Use is discouraged, because
the metadata key string could conflict with other sub\-properties.
.UNINDENT
.sp
The layout of this property might be subject to change. Suggestions are
welcome how exactly this property should work.
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_MAP
    (key and string value for each metadata entry)
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBfiltered\-metadata\fP
Like \fBmetadata\fP, but includes only fields listed in the \fB\-\-display\-tags\fP
option. This is the same set of tags that is printed to the terminal.
.TP
.B \fBchapter\-metadata\fP
Metadata of current chapter. Works similar to \fBmetadata\fP property. It
also allows the same access methods (using sub\-properties).
.sp
Per\-chapter metadata is very rare. Usually, only the chapter name
(\fBtitle\fP) is set.
.sp
For accessing other information, like chapter start, see the
\fBchapter\-list\fP property.
.TP
.B \fBvf\-metadata/<filter\-label>\fP
Metadata added by video filters. Accessed by the filter label,
which, if not explicitly specified using the \fB@filter\-label:\fP syntax,
will be \fB<filter\-name>NN\fP\&.
.sp
Works similar to \fBmetadata\fP property. It allows the same access
methods (using sub\-properties).
.sp
An example of this kind of metadata are the cropping parameters
added by \fB\-\-vf=lavfi=cropdetect\fP\&.
.TP
.B \fBaf\-metadata/<filter\-label>\fP
Equivalent to \fBvf\-metadata/<filter\-label>\fP, but for audio filters.
.TP
.B \fBidle\-active\fP
Return \fByes\fP if no file is loaded, but the player is staying around
because of the \fB\-\-idle\fP option.
.sp
(Renamed from \fBidle\fP\&.)
.TP
.B \fBcore\-idle\fP
Return \fByes\fP if the playback core is paused, otherwise \fBno\fP\&. This can
be different \fBpause\fP in special situations, such as when the player
pauses itself due to low network cache.
.sp
This also returns \fByes\fP if playback is restarting or if nothing is
playing at all. In other words, it\(aqs only \fBno\fP if there\(aqs actually
video playing. (Behavior since mpv 0.7.0.)
.TP
.B \fBcache\-speed\fP (R)
Current I/O read speed between the cache and the lower layer (like network).
This gives the number bytes per seconds over a 1 second window (using
the type \fBMPV_FORMAT_INT64\fP for the client API).
.TP
.B \fBdemuxer\-cache\-duration\fP
Approximate duration of video buffered in the demuxer, in seconds. The
guess is very unreliable, and often the property will not be available
at all, even if data is buffered.
.TP
.B \fBdemuxer\-cache\-time\fP
Approximate time of video buffered in the demuxer, in seconds. Same as
\fBdemuxer\-cache\-duration\fP but returns the last timestamp of buffered
data in demuxer.
.TP
.B \fBdemuxer\-cache\-idle\fP
Returns \fByes\fP if the demuxer is idle, which means the demuxer cache is
filled to the requested amount, and is currently not reading more data.
.TP
.B \fBdemuxer\-cache\-state\fP
Various undocumented or half\-documented things.
.sp
Each entry in \fBseekable\-ranges\fP represents a region in the demuxer cache
that can be seeked to. If there are multiple demuxers active, this only
returns information about the "main" demuxer, but might be changed in
future to return unified information about all demuxers. The ranges are in
arbitrary order. Often, ranges will overlap for a bit, before being joined.
In broken corner cases, ranges may overlap all over the place.
.sp
The end of a seek range is usually smaller than the value returned by the
\fBdemuxer\-cache\-time\fP property, because that property returns the guessed
buffering amount, while the seek ranges represent the buffered data that
can actually be used for cached seeking.
.sp
\fBbof\-cached\fP indicates whether the seek range with the lowest timestamp
points to the beginning of the stream (BOF). This implies you cannot seek
before this position at all. \fBeof\-cached\fP indicates whether the seek range
with the highest timestamp points to the end of the stream (EOF). If both
\fBbof\-cached\fP and \fBeof\-cached\fP are set to \fByes\fP, and there\(aqs only 1
cache range, the entire stream is cached.
.sp
\fBfw\-bytes\fP is the number of bytes of packets buffered in the range
starting from the current decoding position. This is a rough estimate
(may not account correctly for various overhead), and stops at the
demuxer position (it ignores seek ranges after it).
.sp
\fBfile\-cache\-bytes\fP is the number of bytes stored in the file cache. This
includes all overhead, and possibly unused data (like pruned data). This
member is missing if the file cache is not active.
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_MAP
    "seekable\-ranges"   MPV_FORMAT_NODE_ARRAY
        MPV_FORMAT_NODE_MAP
            "start"             MPV_FORMAT_DOUBLE
            "end"               MPV_FORMAT_DOUBLE
    "bof\-cached"        MPV_FORMAT_FLAG
    "eof\-cached"        MPV_FORMAT_FLAG
    "fw\-bytes"          MPV_FORMAT_INT64
    "file\-cache\-bytes"  MPV_FORMAT_INT64
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Other fields (might be changed or removed in the future):
.INDENT 7.0
.TP
.B \fBeof\fP
True if the reader thread has hit the end of the file.
.TP
.B \fBunderrun\fP
True if the reader thread could not satisfy a decoder\(aqs request for a
new packet.
.TP
.B \fBidle\fP
True if the thread is currently not reading.
.TP
.B \fBtotal\-bytes\fP
Sum of packet bytes (plus some overhead estimation) of the entire packet
queue, including cached seekable ranges.
.UNINDENT
.TP
.B \fBdemuxer\-via\-network\fP
Returns \fByes\fP if the stream demuxed via the main demuxer is most likely
played via network. What constitutes "network" is not always clear, might
be used for other types of untrusted streams, could be wrong in certain
cases, and its definition might be changing. Also, external files (like
separate audio files or streams) do not influence the value of this
property (currently).
.TP
.B \fBdemuxer\-start\-time\fP (R)
Returns the start time reported by the demuxer in fractional seconds.
.TP
.B \fBpaused\-for\-cache\fP
Returns \fByes\fP when playback is paused because of waiting for the cache.
.TP
.B \fBcache\-buffering\-state\fP
Return the percentage (0\-100) of the cache fill status until the player
will unpause (related to \fBpaused\-for\-cache\fP).
.TP
.B \fBeof\-reached\fP
Returns \fByes\fP if end of playback was reached, \fBno\fP otherwise. Note
that this is usually interesting only if \fB\-\-keep\-open\fP is enabled,
since otherwise the player will immediately play the next file (or exit
or enter idle mode), and in these cases the \fBeof\-reached\fP property will
logically be cleared immediately after it\(aqs set.
.TP
.B \fBseeking\fP
Returns \fByes\fP if the player is currently seeking, or otherwise trying
to restart playback. (It\(aqs possible that it returns \fByes\fP while a file
is loaded. This is because the same underlying code is used for seeking and
resyncing.)
.TP
.B \fBmixer\-active\fP
Return \fByes\fP if the audio mixer is active, \fBno\fP otherwise.
.sp
This option is relatively useless. Before mpv 0.18.1, it could be used to
infer behavior of the \fBvolume\fP property.
.TP
.B \fBao\-volume\fP (RW)
System volume. This property is available only if mpv audio output is
currently active, and only if the underlying implementation supports volume
control. What this option does depends on the API. For example, on ALSA
this usually changes system\-wide audio, while with PulseAudio this controls
per\-application volume.
.TP
.B \fBao\-mute\fP (RW)
Similar to \fBao\-volume\fP, but controls the mute state. May be unimplemented
even if \fBao\-volume\fP works.
.TP
.B \fBaudio\-codec\fP
Audio codec selected for decoding.
.TP
.B \fBaudio\-codec\-name\fP
Audio codec.
.TP
.B \fBaudio\-params\fP
Audio format as output by the audio decoder.
This has a number of sub\-properties:
.INDENT 7.0
.TP
.B \fBaudio\-params/format\fP
The sample format as string. This uses the same names as used in other
places of mpv.
.TP
.B \fBaudio\-params/samplerate\fP
Samplerate.
.TP
.B \fBaudio\-params/channels\fP
The channel layout as a string. This is similar to what the
\fB\-\-audio\-channels\fP accepts.
.TP
.B \fBaudio\-params/hr\-channels\fP
As \fBchannels\fP, but instead of the possibly cryptic actual layout
sent to the audio device, return a hopefully more human readable form.
(Usually only \fBaudio\-out\-params/hr\-channels\fP makes sense.)
.TP
.B \fBaudio\-params/channel\-count\fP
Number of audio channels. This is redundant to the \fBchannels\fP field
described above.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_MAP
    "format"            MPV_FORMAT_STRING
    "samplerate"        MPV_FORMAT_INT64
    "channels"          MPV_FORMAT_STRING
    "channel\-count"     MPV_FORMAT_INT64
    "hr\-channels"       MPV_FORMAT_STRING
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBaudio\-out\-params\fP
Same as \fBaudio\-params\fP, but the format of the data written to the audio
API.
.TP
.B \fBcolormatrix\fP (R)
Redirects to \fBvideo\-params/colormatrix\fP\&. This parameter (as well as
similar ones) can be overridden with the \fBformat\fP video filter.
.TP
.B \fBcolormatrix\-input\-range\fP (R)
See \fBcolormatrix\fP\&.
.TP
.B \fBcolormatrix\-primaries\fP (R)
See \fBcolormatrix\fP\&.
.TP
.B \fBhwdec\fP (RW)
Reflects the \fB\-\-hwdec\fP option.
.sp
Writing to it may change the currently used hardware decoder, if possible.
(Internally, the player may reinitialize the decoder, and will perform a
seek to refresh the video properly.) You can watch the other hwdec
properties to see whether this was successful.
.sp
Unlike in mpv 0.9.x and before, this does not return the currently active
hardware decoder. Since mpv 0.18.0, \fBhwdec\-current\fP is available for
this purpose.
.TP
.B \fBhwdec\-current\fP
Return the current hardware decoding in use. If decoding is active, return
one of the values used by the \fBhwdec\fP option/property. \fBno\fP indicates
software decoding. If no decoder is loaded, the property is unavailable.
.TP
.B \fBhwdec\-interop\fP
This returns the currently loaded hardware decoding/output interop driver.
This is known only once the VO has opened (and possibly later). With some
VOs (like \fBgpu\fP), this might be never known in advance, but only when
the decoder attempted to create the hw decoder successfully. (Using
\fB\-\-gpu\-hwdec\-interop\fP can load it eagerly.) If there are multiple
drivers loaded, they will be separated by \fB,\fP\&.
.sp
If no VO is active or no interop driver is known, this property is
unavailable.
.sp
This does not necessarily use the same values as \fBhwdec\fP\&. There can be
multiple interop drivers for the same hardware decoder, depending on
platform and VO.
.TP
.B \fBvideo\-format\fP
Video format as string.
.TP
.B \fBvideo\-codec\fP
Video codec selected for decoding.
.TP
.B \fBwidth\fP, \fBheight\fP
Video size. This uses the size of the video as decoded, or if no video
frame has been decoded yet, the (possibly incorrect) container indicated
size.
.TP
.B \fBvideo\-params\fP
Video parameters, as output by the decoder (with overrides like aspect
etc. applied). This has a number of sub\-properties:
.INDENT 7.0
.TP
.B \fBvideo\-params/pixelformat\fP
The pixel format as string. This uses the same names as used in other
places of mpv.
.TP
.B \fBvideo\-params/average\-bpp\fP
Average bits\-per\-pixel as integer. Subsampled planar formats use a
different resolution, which is the reason this value can sometimes be
odd or confusing. Can be unavailable with some formats.
.TP
.B \fBvideo\-params/plane\-depth\fP
Bit depth for each color component as integer. This is only exposed
for planar or single\-component formats, and is unavailable for other
formats.
.TP
.B \fBvideo\-params/w\fP, \fBvideo\-params/h\fP
Video size as integers, with no aspect correction applied.
.TP
.B \fBvideo\-params/dw\fP, \fBvideo\-params/dh\fP
Video size as integers, scaled for correct aspect ratio.
.TP
.B \fBvideo\-params/aspect\fP
Display aspect ratio as float.
.TP
.B \fBvideo\-params/par\fP
Pixel aspect ratio.
.TP
.B \fBvideo\-params/colormatrix\fP
The colormatrix in use as string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/colorlevels\fP
The colorlevels as string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/primaries\fP
The primaries in use as string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/gamma\fP
The gamma function in use as string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/sig\-peak\fP
The video file\(aqs tagged signal peak as float.
.TP
.B \fBvideo\-params/light\fP
The light type in use as a string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/chroma\-location\fP
Chroma location as string. (Exact values subject to change.)
.TP
.B \fBvideo\-params/rotate\fP
Intended display rotation in degrees (clockwise).
.TP
.B \fBvideo\-params/stereo\-in\fP
Source file stereo 3D mode. (See the \fBformat\fP video filter\(aqs
\fBstereo\-in\fP option.)
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_MAP
    "pixelformat"       MPV_FORMAT_STRING
    "w"                 MPV_FORMAT_INT64
    "h"                 MPV_FORMAT_INT64
    "dw"                MPV_FORMAT_INT64
    "dh"                MPV_FORMAT_INT64
    "aspect"            MPV_FORMAT_DOUBLE
    "par"               MPV_FORMAT_DOUBLE
    "colormatrix"       MPV_FORMAT_STRING
    "colorlevels"       MPV_FORMAT_STRING
    "primaries"         MPV_FORMAT_STRING
    "gamma"             MPV_FORMAT_STRING
    "sig\-peak"          MPV_FORMAT_DOUBLE
    "light"             MPV_FORMAT_STRING
    "chroma\-location"   MPV_FORMAT_STRING
    "rotate"            MPV_FORMAT_INT64
    "stereo\-in"         MPV_FORMAT_STRING
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBdwidth\fP, \fBdheight\fP
Video display size. This is the video size after filters and aspect scaling
have been applied. The actual video window size can still be different
from this, e.g. if the user resized the video window manually.
.sp
These have the same values as \fBvideo\-out\-params/dw\fP and
\fBvideo\-out\-params/dh\fP\&.
.TP
.B \fBvideo\-dec\-params\fP
Exactly like \fBvideo\-params\fP, but no overrides applied.
.TP
.B \fBvideo\-out\-params\fP
Same as \fBvideo\-params\fP, but after video filters have been applied. If
there are no video filters in use, this will contain the same values as
\fBvideo\-params\fP\&. Note that this is still not necessarily what the video
window uses, since the user can change the window size, and all real VOs
do their own scaling independently from the filter chain.
.sp
Has the same sub\-properties as \fBvideo\-params\fP\&.
.TP
.B \fBvideo\-frame\-info\fP
Approximate information of the current frame. Note that if any of these
are used on OSD, the information might be off by a few frames due to OSD
redrawing and frame display being somewhat disconnected, and you might
have to pause and force a redraw.
.sp
Sub\-properties:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
video\-frame\-info/picture\-type
video\-frame\-info/interlaced
video\-frame\-info/tff
video\-frame\-info/repeat
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBcontainer\-fps\fP
Container FPS. This can easily contain bogus values. For videos that use
modern container formats or video codecs, this will often be incorrect.
.sp
(Renamed from \fBfps\fP\&.)
.TP
.B \fBestimated\-vf\-fps\fP
Estimated/measured FPS of the video filter chain output. (If no filters
are used, this corresponds to decoder output.) This uses the average of
the 10 past frame durations to calculate the FPS. It will be inaccurate
if frame\-dropping is involved (such as when framedrop is explicitly
enabled, or after precise seeking). Files with imprecise timestamps (such
as Matroska) might lead to unstable results.
.TP
.B \fBwindow\-scale\fP (RW)
Window size multiplier. Setting this will resize the video window to the
values contained in \fBdwidth\fP and \fBdheight\fP multiplied with the value
set with this property. Setting \fB1\fP will resize to original video size
(or to be exact, the size the video filters output). \fB2\fP will set the
double size, \fB0.5\fP halves the size.
.sp
See \fBcurrent\-window\-scale\fP for the value derived from the actual window
size.
.sp
Since mpv 0.31.0, this always returns the previously set value (or the
default value), instead of the value implied by the actual window size.
Before mpv 0.31.0, this returned what \fBcurrent\-window\-scale\fP returns now,
after the window was created.
.TP
.B \fBcurrent\-window\-scale\fP
The \fBwindow\-scale\fP value calculated from the current window size. This
has the same value as \fBwindow\-scale\fP if the window size was not changed
since setting the option, and the window size was not restricted in other
ways. The property is unavailable if no video is active.
.TP
.B \fBdisplay\-names\fP
Names of the displays that the mpv window covers. On X11, these
are the xrandr names (LVDS1, HDMI1, DP1, VGA1, etc.). On Windows, these
are the GDI names (\e.DISPLAY1, \e.DISPLAY2, etc.) and the first display
in the list will be the one that Windows considers associated with the
window (as determined by the MonitorFromWindow API.) On macOS these are the
Display Product Names as used in the System Information and only one display
name is returned since a window can only be on one screen.
.TP
.B \fBdisplay\-fps\fP
The refresh rate of the current display. Currently, this is the lowest FPS
of any display covered by the video, as retrieved by the underlying system
APIs (e.g. xrandr on X11). It is not the measured FPS. It\(aqs not necessarily
available on all platforms. Note that any of the listed facts may change
any time without a warning.
.sp
Writing to this property is deprecated. It has the same effect as writing to
\fBoverride\-display\-fps\fP\&. Since mpv 0.31.0, this property is unavailable
if no display FPS was reported (e.g. if no video is active), while in older
versions, it returned the \fB\-\-display\-fps\fP option value.
.TP
.B \fBestimated\-display\-fps\fP
Only available if display\-sync mode (as selected by \fB\-\-video\-sync\fP) is
active. Returns the actual rate at which display refreshes seem to occur,
measured by system time.
.TP
.B \fBvsync\-jitter\fP
Estimated deviation factor of the vsync duration.
.TP
.B \fBdisplay\-hidpi\-scale\fP
The HiDPI scale factor as reported by the windowing backend. If no VO is
active, or if the VO does not report a value, this property is unavailable.
It may be saner to report an absolute DPI, however, this is the way HiDPI
support is implemented on most OS APIs. See also \fB\-\-hidpi\-window\-scale\fP\&.
.TP
.B \fBvideo\-aspect\fP (RW)
Deprecated. This is tied to \fB\-\-video\-aspect\-override\fP, but always
reports the current video aspect if video is active.
.sp
The read and write components of this option can be split up into
\fBvideo\-params/aspect\fP and \fBvideo\-aspect\-override\fP respectively.
.TP
.B \fBosd\-width\fP, \fBosd\-height\fP
Last known OSD width (can be 0). This is needed if you want to use the
\fBoverlay\-add\fP command. It gives you the actual OSD size, which can be
different from the window size in some cases.
.sp
Alias to \fBosd\-dimensions/w\fP and \fBosd\-dimensions/h\fP\&.
.TP
.B \fBosd\-par\fP
Last known OSD display pixel aspect (can be 0).
.sp
Alias to \fBosd\-dimensions/osd\-par\fP\&.
.TP
.B \fBosd\-dimensions\fP
Last known OSD dimensions.
.sp
Has the following sub\-properties (which can be read as \fBMPV_FORMAT_NODE\fP
or Lua table with \fBmp.get_property_native\fP):
.INDENT 7.0
.TP
.B \fBw\fP
Size of the VO window in OSD render units (usually pixels, but may be
scaled pixels with VOs like \fBxv\fP).
.TP
.B \fBh\fP
Size of the VO window in OSD render units,
.TP
.B \fBpar\fP
Pixel aspect ratio of the OSD (usually 1).
.TP
.B \fBaspect\fP
Display aspect ratio of the VO window. (Computing from the properties
above.)
.TP
.B \fBmt\fP, \fBmb\fP, \fBml\fP, \fBmr\fP
OSD to video margins (top, bottom, left, right). This describes the
area into which the video is rendered.
.UNINDENT
.sp
Any of these properties may be unavailable or set to dummy values if the
VO window is not created or visible.
.TP
.B \fBsub\-text\fP
Return the current subtitle text regardless of sub visibility.
Formatting is stripped. If the subtitle is not text\-based
(i.e. DVD/BD subtitles), an empty string is returned.
.sp
This property is experimental and might be removed in the future.
.TP
.B \fBsub\-start\fP
Return the current subtitle start time (in seconds). If there\(aqs multiple
current subtitles, returns the first start time. If no current subtitle is
present null is returned instead.
.TP
.B \fBsub\-end\fP
Return the current subtitle start time (in seconds). If there\(aqs multiple
current subtitles, return the last end time. If no current subtitle is
present, or if it\(aqs present but has unknown or incorrect duration, null
is returned instead.
.TP
.B \fBplaylist\-pos\fP (RW)
Current position on playlist. The first entry is on position 0. Writing
to the property will restart playback at the written entry.
.TP
.B \fBplaylist\-pos\-1\fP (RW)
Same as \fBplaylist\-pos\fP, but 1\-based.
.TP
.B \fBplaylist\-count\fP
Number of total playlist entries.
.TP
.B \fBplaylist\fP
Playlist, current entry marked. Currently, the raw property value is
useless.
.sp
This has a number of sub\-properties. Replace \fBN\fP with the 0\-based playlist
entry index.
.INDENT 7.0
.TP
.B \fBplaylist/count\fP
Number of playlist entries (same as \fBplaylist\-count\fP).
.TP
.B \fBplaylist/N/filename\fP
Filename of the Nth entry.
.TP
.B \fBplaylist/N/current\fP, \fBplaylist/N/playing\fP
\fByes\fP if this entry is currently playing (or being loaded).
Unavailable or \fBno\fP otherwise. When changing files, \fBcurrent\fP and
\fBplaying\fP can be different, because the currently playing file hasn\(aqt
been unloaded yet; in this case, \fBcurrent\fP refers to the new
selection. (Since mpv 0.7.0.)
.TP
.B \fBplaylist/N/title\fP
Name of the Nth entry. Only available if the playlist file contains
such fields, and only if mpv\(aqs parser supports it for the given
playlist format.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each playlist entry)
        "filename"  MPV_FORMAT_STRING
        "current"   MPV_FORMAT_FLAG (might be missing; since mpv 0.7.0)
        "playing"   MPV_FORMAT_FLAG (same)
        "title"     MPV_FORMAT_STRING (optional)
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBtrack\-list\fP
List of audio/video/sub tracks, current entry marked. Currently, the raw
property value is useless.
.sp
This has a number of sub\-properties. Replace \fBN\fP with the 0\-based track
index.
.INDENT 7.0
.TP
.B \fBtrack\-list/count\fP
Total number of tracks.
.TP
.B \fBtrack\-list/N/id\fP
The ID as it\(aqs used for \fB\-sid\fP/\fB\-\-aid\fP/\fB\-\-vid\fP\&. This is unique
within tracks of the same type (sub/audio/video), but otherwise not.
.TP
.B \fBtrack\-list/N/type\fP
String describing the media type. One of \fBaudio\fP, \fBvideo\fP, \fBsub\fP\&.
.TP
.B \fBtrack\-list/N/src\-id\fP
Track ID as used in the source file. Not always available. (It is
missing if the format has no native ID, if the track is a pseudo\-track
that does not exist in this way in the actual file, or if the format
is handled by libavformat, and the format was not whitelisted as having
track IDs.)
.TP
.B \fBtrack\-list/N/title\fP
Track title as it is stored in the file. Not always available.
.TP
.B \fBtrack\-list/N/lang\fP
Track language as identified by the file. Not always available.
.TP
.B \fBtrack\-list/N/albumart\fP
\fByes\fP if this is a video track that consists of a single picture,
\fBno\fP or unavailable otherwise. This is used for video tracks that are
really attached pictures in audio files.
.TP
.B \fBtrack\-list/N/default\fP
\fByes\fP if the track has the default flag set in the file, \fBno\fP
otherwise.
.TP
.B \fBtrack\-list/N/forced\fP
\fByes\fP if the track has the forced flag set in the file, \fBno\fP
otherwise.
.TP
.B \fBtrack\-list/N/codec\fP
The codec name used by this track, for example \fBh264\fP\&. Unavailable
in some rare cases.
.TP
.B \fBtrack\-list/N/external\fP
\fByes\fP if the track is an external file, \fBno\fP otherwise. This is
set for separate subtitle files.
.TP
.B \fBtrack\-list/N/external\-filename\fP
The filename if the track is from an external file, unavailable
otherwise.
.TP
.B \fBtrack\-list/N/selected\fP
\fByes\fP if the track is currently decoded, \fBno\fP otherwise.
.TP
.B \fBtrack\-list/N/ff\-index\fP
The stream index as usually used by the FFmpeg utilities. Note that
this can be potentially wrong if a demuxer other than libavformat
(\fB\-\-demuxer=lavf\fP) is used. For mkv files, the index will usually
match even if the default (builtin) demuxer is used, but there is
no hard guarantee.
.TP
.B \fBtrack\-list/N/decoder\-desc\fP
If this track is being decoded, the human\-readable decoder name,
.TP
.B \fBtrack\-list/N/demux\-w\fP, \fBtrack\-list/N/demux\-h\fP
Video size hint as indicated by the container. (Not always accurate.)
.TP
.B \fBtrack\-list/N/demux\-channel\-count\fP
Number of audio channels as indicated by the container. (Not always
accurate \- in particular, the track could be decoded as a different
number of channels.)
.TP
.B \fBtrack\-list/N/demux\-channels\fP
Channel layout as indicated by the container. (Not always accurate.)
.TP
.B \fBtrack\-list/N/demux\-samplerate\fP
Audio sample rate as indicated by the container. (Not always accurate.)
.TP
.B \fBtrack\-list/N/demux\-fps\fP
Video FPS as indicated by the container. (Not always accurate.)
.TP
.B \fBtrack\-list/N/demux\-bitrate\fP
Audio average bitrate, in bits per second. (Not always accurate.)
.TP
.B \fBtrack\-list/N/demux\-rotation\fP
Video clockwise rotation metadata, in degrees.
.TP
.B \fBtrack\-list/N/demux\-par\fP
Pixel aspect ratio.
.TP
.B \fBtrack\-list/N/audio\-channels\fP (deprecated)
Deprecated alias for \fBtrack\-list/N/demux\-channel\-count\fP\&.
.TP
.B \fBtrack\-list/N/replaygain\-track\-peak\fP, \fBtrack\-list/N/replaygain\-track\-gain\fP
Per\-track replaygain values. Only available for audio tracks with
corresponding information stored in the source file.
.TP
.B \fBtrack\-list/N/replaygain\-album\-peak\fP, \fBtrack\-list/N/replaygain\-album\-gain\fP
Per\-album replaygain values. If the file has per\-track but no per\-album
information, the per\-album values will be copied from the per\-track
values currently. It\(aqs possible that future mpv versions will make
these properties unavailable instead in this case.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each track)
        "id"                MPV_FORMAT_INT64
        "type"              MPV_FORMAT_STRING
        "src\-id"            MPV_FORMAT_INT64
        "title"             MPV_FORMAT_STRING
        "lang"              MPV_FORMAT_STRING
        "albumart"          MPV_FORMAT_FLAG
        "default"           MPV_FORMAT_FLAG
        "forced"            MPV_FORMAT_FLAG
        "selected"          MPV_FORMAT_FLAG
        "external"          MPV_FORMAT_FLAG
        "external\-filename" MPV_FORMAT_STRING
        "codec"             MPV_FORMAT_STRING
        "ff\-index"          MPV_FORMAT_INT64
        "decoder\-desc"      MPV_FORMAT_STRING
        "demux\-w"           MPV_FORMAT_INT64
        "demux\-h"           MPV_FORMAT_INT64
        "demux\-channel\-count" MPV_FORMAT_INT64
        "demux\-channels"    MPV_FORMAT_STRING
        "demux\-samplerate"  MPV_FORMAT_INT64
        "demux\-fps"         MPV_FORMAT_DOUBLE
        "demux\-bitrate"     MPV_FORMAT_INT64
        "demux\-rotation"    MPV_FORMAT_INT64
        "demux\-par"         MPV_FORMAT_DOUBLE
        "audio\-channels"    MPV_FORMAT_INT64
        "replaygain\-track\-peak" MPV_FORMAT_DOUBLE
        "replaygain\-track\-gain" MPV_FORMAT_DOUBLE
        "replaygain\-album\-peak" MPV_FORMAT_DOUBLE
        "replaygain\-album\-gain" MPV_FORMAT_DOUBLE
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBchapter\-list\fP
List of chapters, current entry marked. Currently, the raw property value
is useless.
.sp
This has a number of sub\-properties. Replace \fBN\fP with the 0\-based chapter
index.
.INDENT 7.0
.TP
.B \fBchapter\-list/count\fP
Number of chapters.
.TP
.B \fBchapter\-list/N/title\fP
Chapter title as stored in the file. Not always available.
.TP
.B \fBchapter\-list/N/time\fP
Chapter start time in seconds as float.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each chapter)
        "title" MPV_FORMAT_STRING
        "time"  MPV_FORMAT_DOUBLE
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBaf\fP, \fBvf\fP (RW)
See \fB\-\-vf\fP/\fB\-\-af\fP and the \fBvf\fP/\fBaf\fP command.
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each filter entry)
        "name"      MPV_FORMAT_STRING
        "label"     MPV_FORMAT_STRING [optional]
        "enabled"   MPV_FORMAT_FLAG [optional]
        "params"    MPV_FORMAT_NODE_MAP [optional]
            "key"   MPV_FORMAT_STRING
            "value" MPV_FORMAT_STRING
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
It\(aqs also possible to write the property using this format.
.TP
.B \fBseekable\fP
Return whether it\(aqs generally possible to seek in the current file.
.TP
.B \fBpartially\-seekable\fP
Return \fByes\fP if the current file is considered seekable, but only because
the cache is active. This means small relative seeks may be fine, but larger
seeks may fail anyway. Whether a seek will succeed or not is generally not
known in advance.
.sp
If this property returns true, \fBseekable\fP will also return true.
.TP
.B \fBplayback\-abort\fP
Return whether playback is stopped or is to be stopped. (Useful in obscure
situations like during \fBon_load\fP hook processing, when the user can
stop playback, but the script has to explicitly end processing.)
.TP
.B \fBcursor\-autohide\fP (RW)
See \fB\-\-cursor\-autohide\fP\&. Setting this to a new value will always update
the cursor, and reset the internal timer.
.TP
.B \fBosd\-sym\-cc\fP
Inserts the current OSD symbol as opaque OSD control code (cc). This makes
sense only with the \fBshow\-text\fP command or options which set OSD messages.
The control code is implementation specific and is useless for anything else.
.TP
.B \fBosd\-ass\-cc\fP
\fB${osd\-ass\-cc/0}\fP disables escaping ASS sequences of text in OSD,
\fB${osd\-ass\-cc/1}\fP enables it again. By default, ASS sequences are
escaped to avoid accidental formatting, and this property can disable
this behavior. Note that the properties return an opaque OSD control
code, which only makes sense for the \fBshow\-text\fP command or options
which set OSD messages.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.INDENT 0.0
.IP \(bu 2
\fB\-\-osd\-status\-msg=\(aqThis is ${osd\-ass\-cc/0}{\e\eb1}bold text\(aq\fP
.IP \(bu 2
\fBshow\-text "This is ${osd\-ass\-cc/0}{\eb1}bold text"\fP
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Any ASS override tags as understood by libass can be used.
.sp
Note that you need to escape the \fB\e\fP character, because the string is
processed for C escape sequences before passing it to the OSD code.
.sp
A list of tags can be found here: \fI\%http://docs.aegisub.org/latest/ASS_Tags/\fP
.TP
.B \fBvo\-configured\fP
Return whether the VO is configured right now. Usually this corresponds to
whether the video window is visible. If the \fB\-\-force\-window\fP option is
used, this is usually always returns \fByes\fP\&.
.TP
.B \fBvo\-passes\fP
Contains introspection about the VO\(aqs active render passes and their
execution times. Not implemented by all VOs.
.sp
This is further subdivided into two frame types, \fBvo\-passes/fresh\fP for
fresh frames (which have to be uploaded, scaled, etc.) and
\fBvo\-passes/redraw\fP for redrawn frames (which only have to be re\-painted).
The number of passes for any given subtype can change from frame to frame,
and should not be relied upon.
.sp
Each frame type has a number of further sub\-properties. Replace \fBTYPE\fP
with the frame type, \fBN\fP with the 0\-based pass index, and \fBM\fP with the
0\-based sample index.
.INDENT 7.0
.TP
.B \fBvo\-passes/TYPE/count\fP
Number of passes.
.TP
.B \fBvo\-passes/TYPE/N/desc\fP
Human\-friendy description of the pass.
.TP
.B \fBvo\-passes/TYPE/N/last\fP
Last measured execution time, in nanoseconds.
.TP
.B \fBvo\-passes/TYPE/N/avg\fP
Average execution time of this pass, in nanoseconds. The exact
timeframe varies, but it should generally be a handful of seconds.
.TP
.B \fBvo\-passes/TYPE/N/peak\fP
The peak execution time (highest value) within this averaging range, in
nanoseconds.
.TP
.B \fBvo\-passes/TYPE/N/count\fP
The number of samples for this pass.
.TP
.B \fBvo\-passes/TYPE/N/samples/M\fP
The raw execution time of a specific sample for this pass, in
nanoseconds.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_MAP
"TYPE" MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP
        "desc"    MPV_FORMAT_STRING
        "last"    MPV_FORMAT_INT64
        "avg"     MPV_FORMAT_INT64
        "peak"    MPV_FORMAT_INT64
        "count"   MPV_FORMAT_INT64
        "samples" MPV_FORMAT_NODE_ARRAY
             MP_FORMAT_INT64
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Note that directly accessing this structure via subkeys is not supported,
the only access is through aforementioned \fBMPV_FORMAT_NODE\fP\&.
.TP
.B \fBvideo\-bitrate\fP, \fBaudio\-bitrate\fP, \fBsub\-bitrate\fP
Bitrate values calculated on the packet level. This works by dividing the
bit size of all packets between two keyframes by their presentation
timestamp distance. (This uses the timestamps are stored in the file, so
e.g. playback speed does not influence the returned values.) In particular,
the video bitrate will update only per keyframe, and show the "past"
bitrate. To make the property more UI friendly, updates to these properties
are throttled in a certain way.
.sp
The unit is bits per second. OSD formatting turns these values in kilobits
(or megabits, if appropriate), which can be prevented by using the
raw property value, e.g. with \fB${=video\-bitrate}\fP\&.
.sp
Note that the accuracy of these properties is influenced by a few factors.
If the underlying demuxer rewrites the packets on demuxing (done for some
file formats), the bitrate might be slightly off. If timestamps are bad
or jittery (like in Matroska), even constant bitrate streams might show
fluctuating bitrate.
.sp
How exactly these values are calculated might change in the future.
.sp
In earlier versions of mpv, these properties returned a static (but bad)
guess using a completely different method.
.TP
.B \fBpacket\-video\-bitrate\fP, \fBpacket\-audio\-bitrate\fP, \fBpacket\-sub\-bitrate\fP
Old and deprecated properties for \fBvideo\-bitrate\fP, \fBaudio\-bitrate\fP,
\fBsub\-bitrate\fP\&. They behave exactly the same, but return a value in
kilobits. Also, they don\(aqt have any OSD formatting, though the same can be
achieved with e.g. \fB${=video\-bitrate}\fP\&.
.sp
These properties shouldn\(aqt be used anymore.
.TP
.B \fBaudio\-device\-list\fP
Return the list of discovered audio devices. This is mostly for use with
the client API, and reflects what \fB\-\-audio\-device=help\fP with the command
line player returns.
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each device entry)
        "name"          MPV_FORMAT_STRING
        "description"   MPV_FORMAT_STRING
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The \fBname\fP is what is to be passed to the \fB\-\-audio\-device\fP option (and
often a rather cryptic audio API\-specific ID), while \fBdescription\fP is
human readable free form text. The description is set to the device name
(minus mpv\-specific \fB<driver>/\fP prefix) if no description is available
or the description would have been an empty string.
.sp
The special entry with the name set to \fBauto\fP selects the default audio
output driver and the default device.
.sp
The property can be watched with the property observation mechanism in
the client API and in Lua scripts. (Technically, change notification is
enabled the first time this property is read.)
.TP
.B \fBaudio\-device\fP (RW)
Set the audio device. This directly reads/writes the \fB\-\-audio\-device\fP
option, but on write accesses, the audio output will be scheduled for
reloading.
.sp
Writing this property while no audio output is active will not automatically
enable audio. (This is also true in the case when audio was disabled due to
reinitialization failure after a previous write access to \fBaudio\-device\fP\&.)
.sp
This property also doesn\(aqt tell you which audio device is actually in use.
.sp
How these details are handled may change in the future.
.TP
.B \fBcurrent\-vo\fP
Current video output driver (name as used with \fB\-\-vo\fP).
.TP
.B \fBcurrent\-ao\fP
Current audio output driver (name as used with \fB\-\-ao\fP).
.TP
.B \fBshared\-script\-properties\fP (RW)
This is a key/value map of arbitrary strings shared between scripts for
general use. The player itself does not use any data in it (although some
builtin scripts may). The property is not preserved across player restarts.
.sp
This is very primitive, inefficient, and annoying to use. It\(aqs a makeshift
solution which could go away any time (for example, when a better solution
becomes available). This is also why this property has an annoying name. You
should avoid using it, unless you absolutely have to.
.sp
Lua scripting has helpers starting with \fButils.shared_script_property_\fP\&.
They are undocumented because you should not use this property. If you still
think you must, you should use the helpers instead of the property directly.
.sp
You are supposed to use the \fBchange\-list\fP command to modify the contents.
Reading, modifying, and writing the property manually could data loss if two
scripts update different keys at the same time due to lack of
synchronization. The Lua helpers take care of this.
.sp
(There is no way to ensure synchronization if two scripts try to update the
same key at the same time.)
.TP
.B \fBworking\-directory\fP
Return the working directory of the mpv process. Can be useful for JSON IPC
users, because the command line player usually works with relative paths.
.TP
.B \fBprotocol\-list\fP
List of protocol prefixes potentially recognized by the player. They are
returned without trailing \fB://\fP suffix (which is still always required).
In some cases, the protocol will not actually be supported (consider
\fBhttps\fP if ffmpeg is not compiled with TLS support).
.TP
.B \fBdecoder\-list\fP
List of decoders supported. This lists decoders which can be passed to
\fB\-\-vd\fP and \fB\-\-ad\fP\&.
.INDENT 7.0
.TP
.B \fBcodec\fP
Canonical codec name, which identifies the format the decoder can
handle.
.TP
.B \fBdriver\fP
The name of the decoder itself. Often, this is the same as \fBcodec\fP\&.
Sometimes it can be different. It is used to distinguish multiple
decoders for the same codec.
.TP
.B \fBdescription\fP
Human readable description of the decoder and codec.
.UNINDENT
.sp
When querying the property with the client API using \fBMPV_FORMAT_NODE\fP,
or with Lua \fBmp.get_property_native\fP, this will return a mpv_node with
the following contents:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
MPV_FORMAT_NODE_ARRAY
    MPV_FORMAT_NODE_MAP (for each decoder entry)
        "codec"         MPV_FORMAT_STRING
        "driver"        MPV_FORMAT_STRING
        "description"   MPV_FORMAT_STRING
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBencoder\-list\fP
List of libavcodec encoders. This has the same format as \fBdecoder\-list\fP\&.
The encoder names (\fBdriver\fP entries) can be passed to \fB\-\-ovc\fP and
\fB\-\-oac\fP (without the \fBlavc:\fP prefix required by \fB\-\-vd\fP and \fB\-\-ad\fP).
.TP
.B \fBdemuxer\-lavf\-list\fP
List of available libavformat demuxers\(aq names. This can be used to check
for support for a specific format or use with \fB\-\-demuxer\-lavf\-format\fP\&.
.TP
.B \fBmpv\-version\fP
Return the mpv version/copyright string. Depending on how the binary was
built, it might contain either a release version, or just a git hash.
.TP
.B \fBmpv\-configuration\fP
Return the configuration arguments which were passed to the build system
(typically the way \fB\&./waf configure ...\fP was invoked).
.TP
.B \fBffmpeg\-version\fP
Return the contents of the \fBav_version_info()\fP API call. This is a string
which identifies the build in some way, either through a release version
number, or a git hash. This applies to Libav as well (the property is
still named the same.) This property is unavailable if mpv is linked against
older FFmpeg and Libav versions.
.TP
.B \fBoptions/<name>\fP (RW)
Read\-only access to value of option \fB\-\-<name>\fP\&. Most options can be
changed at runtime by writing to this property. Note that many options
require reloading the file for changes to take effect. If there is an
equivalent property, prefer setting the property instead.
.sp
There shouldn\(aqt be any reason to access \fBoptions/<name>\fP instead of
\fB<name>\fP, except in situations in which the properties have different
behavior or conflicting semantics.
.TP
.B \fBfile\-local\-options/<name>\fP
Similar to \fBoptions/<name>\fP, but when setting an option through this
property, the option is reset to its old value once the current file has
stopped playing. Trying to write an option while no file is playing (or
is being loaded) results in an error.
.sp
(Note that if an option is marked as file\-local, even \fBoptions/\fP will
access the local value, and the \fBold\fP value, which will be restored on
end of playback, cannot be read or written until end of playback.)
.TP
.B \fBoption\-info/<name>\fP
Additional per\-option information.
.sp
This has a number of sub\-properties. Replace \fB<name>\fP with the name of
a top\-level option. No guarantee of stability is given to any of these
sub\-properties \- they may change radically in the feature.
.INDENT 7.0
.TP
.B \fBoption\-info/<name>/name\fP
Returns the name of the option.
.TP
.B \fBoption\-info/<name>/type\fP
Return the name of the option type, like \fBString\fP or \fBInteger\fP\&.
For many complex types, this isn\(aqt very accurate.
.TP
.B \fBoption\-info/<name>/set\-from\-commandline\fP
Return \fByes\fP if the option was set from the mpv command line,
\fBno\fP otherwise. What this is set to if the option is e.g. changed
at runtime is left undefined (meaning it could change in the future).
.TP
.B \fBoption\-info/<name>/set\-locally\fP
Return \fByes\fP if the option was set per\-file. This is the case with
automatically loaded profiles, file\-dir configs, and other cases. It
means the option value will be restored to the value before playback
start when playback ends.
.TP
.B \fBoption\-info/<name>/default\-value\fP
The default value of the option. May not always be available.
.TP
.B \fBoption\-info/<name>/min\fP, \fBoption\-info/<name>/max\fP
Integer minimum and maximum values allowed for the option. Only
available if the options are numeric, and the minimum/maximum has been
set internally. It\(aqs also possible that only one of these is set.
.TP
.B \fBoption\-info/<name>/choices\fP
If the option is a choice option, the possible choices. Choices that
are integers may or may not be included (they can be implied by \fBmin\fP
and \fBmax\fP). Note that options which behave like choice options, but
are not actual choice options internally, may not have this info
available.
.UNINDENT
.TP
.B \fBproperty\-list\fP
Return the list of top\-level properties.
.TP
.B \fBprofile\-list\fP
Return the list of profiles and their contents. This is highly
implementation\-specific, and may change any time. Currently, it returns
an array of options for each profile. Each option has a name and a value,
with the value currently always being a string. Note that the options array
is not a map, as order matters and duplicate entries are possible. Recursive
profiles are not expanded, and show up as special \fBprofile\fP options.
.TP
.B \fBcommand\-list\fP
Return the list of input commands. This returns an array of maps, where
each map node represents a command. This map currently only has a single
entry: \fBname\fP for the name of the command. (This property is supposed to
be a replacement for \fB\-\-input\-cmdlist\fP\&. The option dumps some more
information, but it\(aqs a valid feature request to extend this property if
needed.)
.TP
.B \fBinput\-bindings\fP
Return list of current input key bindings. This returns an array of maps,
where each map node represents a binding for a single key/command. This map
has the following entries:
.INDENT 7.0
.TP
.B \fBkey\fP
The key name. This is normalized and may look slightly different from
how it was specified in the source (e.g. in input.conf).
.TP
.B \fBcmd\fP
The command mapped to the key. (Currently, this is exactly the same
string as specified in the source, other than stripping whitespace and
comments. It\(aqs possible that it will be normalized in the future.)
.TP
.B \fBis_weak\fP
If set to true, any existing and active user bindings will take priority.
.TP
.B \fBowner\fP
If this entry exists, the name of the script (or similar) which added
this binding.
.TP
.B \fBsection\fP
Name of the section this binding is part of. This is a rarely used
mechanism. This entry may be removed or change meaning in the future.
.TP
.B \fBpriority\fP
A number. Bindings with a higher value are preferred over bindings
with a lower value. If the value is negative, this binding is inactive
and will not be triggered by input. Note that mpv does not use this
value internally, and matching of bindings may work slightly differently
in some cases. In addition, this value is dynamic and can change around
at runtime.
.TP
.B \fBcomment\fP
If available, the comment following the command on the same line. (For
example, the input.conf entry \fBf cycle bla # toggle bla\fP would
result in an entry with \fBcomment = "toggle bla", cmd = "cycle bla"\fP\&.)
.UNINDENT
.sp
This property is read\-only, and change notification is not supported.
Currently, there is no mechanism to change key bindings at runtime, other
than scripts adding or removing their own bindings.
.UNINDENT
.SS Inconsistencies between options and properties
.sp
You can access (almost) all options as properties, though there are some
caveats with some properties (due to historical reasons):
.INDENT 0.0
.TP
.B \fBvid\fP, \fBaid\fP, \fBsid\fP
While playback is active, these result the actually active tracks. For
example, if you set \fBaid=5\fP, and the currently played file contains no
audio track with ID 5, the \fBaid\fP property will return \fBno\fP\&.
.sp
Before mpv 0.31.0, you could set existing tracks at runtime only.
.TP
.B \fBdisplay\-fps\fP
This inconsistent behavior is deprecated. Post\-deprecation, the reported
value and the option value are cleanly separated (\fBoverride\-display\-fps\fP
for the option value).
.TP
.B \fBvf\fP, \fBaf\fP
If you set the properties during playback, and the filter chain fails to
reinitialize, the option will be set, but the runtime filter chain does not
change. On the other hand, the next video to be played will fail, because
the initial filter chain cannot be created.
.sp
This behavior changed in mpv 0.31.0. Before this, the new value was rejected
\fIiff\fP video (for \fBvf\fP) or audio (for \fBaf\fP) was active. If playback was
not active, the behavior was the same as the current behavior.
.TP
.B \fBplaylist\fP
The property is read\-only and returns the current internal playlist. The
option is for loading playlist during command line parsing. For client API
uses, you should use the \fBloadlist\fP command instead.
.TP
.B \fBprofile\fP, \fBinclude\fP
These are write\-only, and will perform actions as they are written to,
exactly as if they were used on the mpv CLI commandline. Their only use is
when using libmpv before \fBmpv_initialize()\fP, which in turn is probably
only useful in encoding mode. Normal libmpv users should use other
mechanisms, such as the \fBapply\-profile\fP command, and the
\fBmpv_load_config_file\fP API function. Avoid these properties.
.UNINDENT
.SS Property Expansion
.sp
All string arguments to input commands as well as certain options (like
\fB\-\-term\-playing\-msg\fP) are subject to property expansion. Note that property
expansion does not work in places where e.g. numeric parameters are expected.
(For example, the \fBadd\fP command does not do property expansion. The \fBset\fP
command is an exception and not a general rule.)
.INDENT 0.0
.INDENT 3.5
.IP "Example for input.conf"
.INDENT 0.0
.TP
.B \fBi show\-text "Filename: ${filename}"\fP
shows the filename of the current file when pressing the \fBi\fP key
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Within \fBinput.conf\fP, property expansion can be inhibited by putting the
\fBraw\fP prefix in front of commands.
.sp
The following expansions are supported:
.INDENT 0.0
.TP
.B \fB${NAME}\fP
Expands to the value of the property \fBNAME\fP\&. If retrieving the property
fails, expand to an error string. (Use \fB${NAME:}\fP with a trailing
\fB:\fP to expand to an empty string instead.)
If \fBNAME\fP is prefixed with \fB=\fP, expand to the raw value of the property
(see section below).
.TP
.B \fB${NAME:STR}\fP
Expands to the value of the property \fBNAME\fP, or \fBSTR\fP if the
property cannot be retrieved. \fBSTR\fP is expanded recursively.
.TP
.B \fB${?NAME:STR}\fP
Expands to \fBSTR\fP (recursively) if the property \fBNAME\fP is available.
.TP
.B \fB${!NAME:STR}\fP
Expands to \fBSTR\fP (recursively) if the property \fBNAME\fP cannot be
retrieved.
.TP
.B \fB${?NAME==VALUE:STR}\fP
Expands to \fBSTR\fP (recursively) if the property \fBNAME\fP expands to a
string equal to \fBVALUE\fP\&. You can prefix \fBNAME\fP with \fB=\fP in order to
compare the raw value of a property (see section below). If the property
is unavailable, or other errors happen when retrieving it, the value is
never considered equal.
Note that \fBVALUE\fP can\(aqt contain any of the characters \fB:\fP or \fB}\fP\&.
Also, it is possible that escaping with \fB"\fP or \fB%\fP might be added in
the future, should the need arise.
.TP
.B \fB${!NAME==VALUE:STR}\fP
Same as with the \fB?\fP variant, but \fBSTR\fP is expanded if the value is
not equal. (Using the same semantics as with \fB?\fP\&.)
.TP
.B \fB$$\fP
Expands to \fB$\fP\&.
.TP
.B \fB$}\fP
Expands to \fB}\fP\&. (To produce this character inside recursive
expansion.)
.TP
.B \fB$>\fP
Disable property expansion and special handling of \fB$\fP for the rest
of the string.
.UNINDENT
.sp
In places where property expansion is allowed, C\-style escapes are often
accepted as well. Example:
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.IP \(bu 2
\fB\en\fP becomes a newline character
.IP \(bu 2
\fB\e\e\fP expands to \fB\e\fP
.UNINDENT
.UNINDENT
.UNINDENT
.SS Raw and Formatted Properties
.sp
Normally, properties are formatted as human\-readable text, meant to be
displayed on OSD or on the terminal. It is possible to retrieve an unformatted
(raw) value from a property by prefixing its name with \fB=\fP\&. These raw values
can be parsed by other programs and follow the same conventions as the options
associated with the properties.
.INDENT 0.0
.INDENT 3.5
.IP "Examples"
.INDENT 0.0
.IP \(bu 2
\fB${time\-pos}\fP expands to \fB00:14:23\fP (if playback position is at 14
minutes 23 seconds)
.IP \(bu 2
\fB${=time\-pos}\fP expands to \fB863.4\fP (same time, plus 400 milliseconds \-
milliseconds are normally not shown in the formatted case)
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Sometimes, the difference in amount of information carried by raw and formatted
property values can be rather big. In some cases, raw values have more
information, like higher precision than seconds with \fBtime\-pos\fP\&. Sometimes
it is the other way around, e.g. \fBaid\fP shows track title and language in the
formatted case, but only the track number if it is raw.
.SH ON SCREEN CONTROLLER
.sp
The On Screen Controller (short: OSC) is a minimal GUI integrated with mpv to
offer basic mouse\-controllability. It is intended to make interaction easier
for new users and to enable precise and direct seeking.
.sp
The OSC is enabled by default if mpv was compiled with Lua support. It can be
disabled entirely using the \fB\-\-osc=no\fP option.
.SS Using the OSC
.sp
By default, the OSC will show up whenever the mouse is moved inside the
player window and will hide if the mouse is not moved outside the OSC for
0.5 seconds or if the mouse leaves the window.
.SS The Interface
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
+\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-\-+
| pl prev | pl next  |  title                                   |    cache |
+\-\-\-\-\-\-+\-\-+\-\-\-+\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-+\-\-\-\-\-\-\-+\-\-\-\-\-+\-\-\-\-\-+\-\-\-\-+
| play | skip | skip | time    |  seekbar  | time | audio | sub | vol | fs |
|      | back | frwd | elapsed |           | left |       |     |     |    |
+\-\-\-\-\-\-+\-\-\-\-\-\-+\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-\-\-\-\-\-+\-\-\-\-\-\-+\-\-\-\-\-\-\-+\-\-\-\-\-+\-\-\-\-\-+\-\-\-\-+
.ft P
.fi
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B pl prev
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
play previous file in playlist
T}
_
T{
right\-click
T}	T{
show playlist
T}
_
T{
shift+L\-click
T}	T{
show playlist
T}
_
.TE
.TP
.B pl next
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
play next file in playlist
T}
_
T{
right\-click
T}	T{
show playlist
T}
_
T{
shift+L\-click
T}	T{
show playlist
T}
_
.TE
.TP
.B title
.nf
Displays current media\-title, filename, or custom title
.fi
.sp
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
show playlist position and length and full title
T}
_
T{
right\-click
T}	T{
show filename
T}
_
.TE
.TP
.B cache
.nf
Shows current cache fill status
.fi
.sp
.TP
.B play
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
toggle play/pause
T}
_
.TE
.TP
.B skip back
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
go to beginning of chapter / previous chapter
T}
_
T{
right\-click
T}	T{
show chapters
T}
_
T{
shift+L\-click
T}	T{
show chapters
T}
_
.TE
.TP
.B skip frwd
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
go to next chapter
T}
_
T{
right\-click
T}	T{
show chapters
T}
_
T{
shift+L\-click
T}	T{
show chapters
T}
_
.TE
.TP
.B time elapsed
.nf
Shows current playback position timestamp
.fi
.sp
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
toggle displaying timecodes with milliseconds
T}
_
.TE
.TP
.B seekbar
.nf
Indicates current playback position and position of chapters
.fi
.sp
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
seek to position
T}
_
.TE
.TP
.B time left
.nf
Shows remaining playback time timestamp
.fi
.sp
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
toggle between total and remaining time
T}
_
.TE
.TP
.B audio and sub
.nf
Displays selected track and amount of available tracks
.fi
.sp
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
cycle audio/sub tracks forward
T}
_
T{
right\-click
T}	T{
cycle audio/sub tracks backwards
T}
_
T{
shift+L\-click
T}	T{
show available audio/sub tracks
T}
_
.TE
.TP
.B vol
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
toggle mute
T}
_
T{
mouse wheel
T}	T{
volume up/down
T}
_
.TE
.TP
.B fs
.TS
center;
|l|l|.
_
T{
left\-click
T}	T{
toggle fullscreen
T}
_
.TE
.UNINDENT
.SS Key Bindings
.sp
These key bindings are active by default if nothing else is already bound to
these keys. In case of collision, the function needs to be bound to a
different key. See the \fI\%Script Commands\fP section.
.TS
center;
|l|l|.
_
T{
del
T}	T{
Cycles visibility between never / auto (mouse\-move) / always
T}
_
.TE
.SS Configuration
.sp
The OSC offers limited configuration through a config file
\fBscript\-opts/osc.conf\fP placed in mpv\(aqs user dir and through the
\fB\-\-script\-opts\fP command\-line option. Options provided through the command\-line
will override those from the config file.
.SS Config Syntax
.sp
The config file must exactly follow the following syntax:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
# this is a comment
optionA=value1
optionB=value2
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fB#\fP can only be used at the beginning of a line and there may be no
spaces around the \fB=\fP or anywhere else.
.SS Command\-line Syntax
.sp
To avoid collisions with other scripts, all options need to be prefixed with
\fBosc\-\fP\&.
.sp
Example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
\-\-script\-opts=osc\-optionA=value1,osc\-optionB=value2
.ft P
.fi
.UNINDENT
.UNINDENT
.SS Configurable Options
.INDENT 0.0
.TP
.B \fBlayout\fP
Default: bottombar
.sp
The layout for the OSC. Currently available are: box, slimbox,
bottombar and topbar. Default pre\-0.21.0 was \(aqbox\(aq.
.TP
.B \fBseekbarstyle\fP
Default: bar
.sp
Sets the style of the playback position marker and overall shape
of the seekbar: \fBbar\fP, \fBdiamond\fP or \fBknob\fP\&.
.TP
.B \fBseekbarhandlesize\fP
Default: 0.6
.sp
Size ratio of the seek handle if \fBseekbarstyle\fP is set to \fBdimaond\fP
or \fBknob\fP\&. This is relative to the full height of the seekbar.
.TP
.B \fBseekbarkeyframes\fP
Default: yes
.sp
Controls the mode used to seek when dragging the seekbar. By default,
keyframes are used. If set to false, exact seeking on mouse drags
will be used instead. Keyframes are preferred, but exact seeks may be
useful in cases where keyframes cannot be found. Note that using exact
seeks can potentially make mouse dragging much slower.
.TP
.B \fBseekrangestyle\fP
Default: inverted
.sp
Display seekable ranges on the seekbar. \fBbar\fP shows them on the full
height of the bar, \fBline\fP as a thick line and \fBinverted\fP as a thin
line that is inverted over playback position markers. \fBnone\fP will hide
them. Additionally, \fBslider\fP will show a permanent handle inside the seekbar
with cached ranges marked inside. Note that these will look differently
based on the seekbarstyle option. Also, \fBslider\fP does not work with
\fBseekbarstyle\fP set to \fBbar\fP\&.
.TP
.B \fBseekrangeseparate\fP
Default: yes
.sp
Controls whether to show line\-style seekable ranges on top of the
seekbar or separately if \fBseekbarstyle\fP is set to \fBbar\fP\&.
.TP
.B \fBseekrangealpha\fP
Default: 200
.sp
Alpha of the seekable ranges, 0 (opaque) to 255 (fully transparent).
.TP
.B \fBdeadzonesize\fP
Default: 0.5
.sp
Size of the deadzone. The deadzone is an area that makes the mouse act
like leaving the window. Movement there won\(aqt make the OSC show up and
it will hide immediately if the mouse enters it. The deadzone starts
at the window border opposite to the OSC and the size controls how much
of the window it will span. Values between 0.0 and 1.0, where 0 means the
OSC will always popup with mouse movement in the window, and 1 means the
OSC will only show up when the mouse hovers it. Default pre\-0.21.0 was 0.
.TP
.B \fBminmousemove\fP
Default: 0
.sp
Minimum amount of pixels the mouse has to move between ticks to make
the OSC show up. Default pre\-0.21.0 was 3.
.TP
.B \fBshowwindowed\fP
Default: yes
.sp
Enable the OSC when windowed
.TP
.B \fBshowfullscreen\fP
Default: yes
.sp
Enable the OSC when fullscreen
.TP
.B \fBscalewindowed\fP
Default: 1.0
.sp
Scale factor of the OSC when windowed.
.TP
.B \fBscalefullscreen\fP
Default: 1.0
.sp
Scale factor of the OSC when fullscreen
.TP
.B \fBscaleforcedwindow\fP
Default: 2.0
.sp
Scale factor of the OSC when rendered on a forced (dummy) window
.TP
.B \fBvidscale\fP
Default: yes
.sp
Scale the OSC with the video
\fBno\fP tries to keep the OSC size constant as much as the window size allows
.TP
.B \fBvalign\fP
Default: 0.8
.sp
Vertical alignment, \-1 (top) to 1 (bottom)
.TP
.B \fBhalign\fP
Default: 0.0
.sp
Horizontal alignment, \-1 (left) to 1 (right)
.TP
.B \fBbarmargin\fP
Default: 0
.sp
Margin from bottom (bottombar) or top (topbar), in pixels
.TP
.B \fBboxalpha\fP
Default: 80
.sp
Alpha of the background box, 0 (opaque) to 255 (fully transparent)
.TP
.B \fBhidetimeout\fP
Default: 500
.sp
Duration in ms until the OSC hides if no mouse movement, must not be
negative
.TP
.B \fBfadeduration\fP
Default: 200
.sp
Duration of fade out in ms, 0 = no fade
.TP
.B \fBtitle\fP
Default: ${media\-title}
.sp
String that supports property expansion that will be displayed as
OSC title.
ASS tags are escaped, and newlines and trailing slashes are stripped.
.TP
.B \fBtooltipborder\fP
Default: 1
.sp
Size of the tooltip outline when using bottombar or topbar layouts
.TP
.B \fBtimetotal\fP
Default: no
.sp
Show total time instead of time remaining
.TP
.B \fBtimems\fP
Default: no
.sp
Display timecodes with milliseconds
.TP
.B \fBvisibility\fP
Default: auto (auto hide/show on mouse move)
.sp
Also supports \fBnever\fP and \fBalways\fP
.TP
.B \fBboxmaxchars\fP
Default: 80
.sp
Max chars for the osc title at the box layout. mpv does not measure the
text width on screen and so it needs to limit it by number of chars. The
default is conservative to allow wide fonts to be used without overflow.
However, with many common fonts a bigger number can be used. YMMV.
.TP
.B \fBboxvideo\fP
Default: no
.sp
Whether to overlay the osc over the video (\fBno\fP), or to box the video
within the areas not covered by the osc (\fByes\fP). If this option is set,
the osc may overwrite the \fB\-\-video\-margin\-ratio\-*\fP options, even if the
user has set them. (It will not overwrite them if all of them are set to
default values.)
.sp
Currently, this is supported for the \fBbottombar\fP and \fBtopbar\fP layout
only. The other layouts do not change if this option is set. Separately,
if window controls are present (see below), they will be affected
regardless of which osc layout is in use.
.sp
The border is static and appears even if the OSC is configured to appear
only on mouse interaction. If the OSC is invisible, the border is simply
filled with the background color (black by default).
.sp
This currently still makes the OSC overlap with subtitles (if the
\fB\-\-sub\-use\-margins\fP option is set to \fByes\fP, the default). This may be
fixed later.
.sp
This does not work correctly with video outputs like \fB\-\-vo=xv\fP, which
render OSD into the unscaled video.
.TP
.B \fBwindowcontrols\fP
Default: auto (Show window controls if there is no window border)
.sp
Whether to show window management controls over the video, and if so,
which side of the window to place them. This may be desirable when the
window has no decorations, either because they have been explicitly
disabled (\fBborder=no\fP) or because the current platform doesn\(aqt support
them (eg: gnome\-shell with wayland).
.sp
The set of window controls is fixed, offering \fBminimize\fP, \fBmaximize\fP,
and \fBquit\fP\&. Not all platforms implement \fBminimize\fP and \fBmaximize\fP,
but \fBquit\fP will always work.
.TP
.B \fBwindowcontrols_alignment\fP
Default: right
.sp
If window controls are shown, indicates which side should they be aligned
to.
.sp
Supports \fBleft\fP and \fBright\fP which will place the controls on those
respective sides.
.TP
.B \fBgreenandgrumpy\fP
Default: no
.sp
Set to \fByes\fP to reduce festivity (i.e. disable santa hat in December.)
.UNINDENT
.SS Script Commands
.sp
The OSC script listens to certain script commands. These commands can bound
in \fBinput.conf\fP, or sent by other scripts.
.INDENT 0.0
.TP
.B \fBosc\-message\fP
Show a message on screen using the OSC. First argument is the message,
second the duration in seconds.
.TP
.B \fBosc\-visibility\fP
Controls visibility mode \fBnever\fP / \fBauto\fP (on mouse move) / \fBalways\fP
and also \fBcycle\fP to cycle between the modes
.UNINDENT
.sp
Example
.sp
You could put this into \fBinput.conf\fP to hide the OSC with the \fBa\fP key and
to set auto mode (the default) with \fBb\fP:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
a script\-message osc\-visibility never
b script\-message osc\-visibility auto
.ft P
.fi
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \fBosc\-playlist\fP, \fBosc\-chapterlist\fP, \fBosc\-tracklist\fP
Shows a limited view of the respective type of list using the OSC. First
argument is duration in seconds.
.UNINDENT
.SH STATS
.sp
This builtin script displays information and statistics for the currently
played file. It is enabled by default if mpv was compiled with Lua support.
It can be disabled entirely using the \fB\-\-load\-stats\-overlay=no\fP option.
.SS Usage
.sp
The following key bindings are active by default unless something else is
already bound to them:
.TS
center;
|l|l|.
_
T{
i
T}	T{
Show stats for a fixed duration
T}
_
T{
I
T}	T{
Toggle stats (shown until toggled again)
T}
_
.TE
.sp
While the stats are visible on screen the following key bindings are active,
regardless of existing bindings. They allow you to switch between \fIpages\fP of
stats:
.TS
center;
|l|l|.
_
T{
1
T}	T{
Show usual stats
T}
_
T{
2
T}	T{
Show frame timings
T}
_
T{
3
T}	T{
Input cache stats
T}
_
.TE
.SS Font
.sp
For optimal visual experience, a font with support for many font weights and
monospaced digits is recommended. By default, the open source font
\fI\%Source Sans Pro\fP is used.
.SS Configuration
.sp
This script can be customized through a config file \fBscript\-opts/stats.conf\fP
placed in mpv\(aqs user directory and through the \fB\-\-script\-opts\fP command\-line
option. The configuration syntax is described in \fI\%ON SCREEN CONTROLLER\fP\&.
.SS Configurable Options
.INDENT 0.0
.TP
.B \fBkey_oneshot\fP
Default: i
.TP
.B \fBkey_toggle\fP
Default: I
.sp
Key bindings to display stats.
.TP
.B \fBkey_page_1\fP
Default: 1
.TP
.B \fBkey_page_2\fP
Default: 2
.TP
.B \fBkey_page_3\fP
Default: 3
.sp
Key bindings for page switching while stats are displayed.
.TP
.B \fBduration\fP
Default: 4
.sp
How long the stats are shown in seconds (oneshot).
.TP
.B \fBredraw_delay\fP
Default: 1
.sp
How long it takes to refresh the displayed stats in seconds (toggling).
.TP
.B \fBpersistent_overlay\fP
Default: no
.sp
When \fIno\fP, other scripts printing text to the screen can overwrite the
displayed stats. When \fIyes\fP, displayed stats are persistently shown for the
respective duration. This can result in overlapping text when multiple
scripts decide to print text at the same time.
.TP
.B \fBplot_perfdata\fP
Default: yes
.sp
Show graphs for performance data (page 2).
.TP
.B \fBplot_vsync_ratio\fP
Default: yes
.TP
.B \fBplot_vsync_jitter\fP
Default: yes
.sp
Show graphs for vsync and jitter values (page 1). Only when toggled.
.TP
.B \fBflush_graph_data\fP
Default: yes
.sp
Clear data buffers used for drawing graphs when toggling.
.TP
.B \fBfont\fP
Default: Source Sans Pro
.sp
Font name. Should support as many font weights as possible for optimal
visual experience.
.TP
.B \fBfont_mono\fP
Default: Source Sans Pro
.sp
Font name for parts where monospaced characters are necessary to align
text. Currently, monospaced digits are sufficient.
.TP
.B \fBfont_size\fP
Default: 8
.sp
Font size used to render text.
.TP
.B \fBfont_color\fP
Default: FFFFFF
.sp
Font color.
.TP
.B \fBborder_size\fP
Default: 0.8
.sp
Size of border drawn around the font.
.TP
.B \fBborder_color\fP
Default: 262626
.sp
Color of drawn border.
.TP
.B \fBalpha\fP
Default: 11
.sp
Transparency for drawn text.
.TP
.B \fBplot_bg_border_color\fP
Default: 0000FF
.sp
Border color used for drawing graphs.
.TP
.B \fBplot_bg_color\fP
Default: 262626
.sp
Background color used for drawing graphs.
.TP
.B \fBplot_color\fP
Default: FFFFFF
.sp
Color used for drawing graphs.
.UNINDENT
.sp
Note: colors are given as hexadecimal values and use ASS tag order: BBGGRR
(blue green red).
.SS Different key bindings
.sp
A different key binding can be defined with the aforementioned options
\fBkey_oneshot\fP and \fBkey_toggle\fP but also with commands in \fBinput.conf\fP,
for example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
e script\-binding stats/display\-stats
E script\-binding stats/display\-stats\-toggle
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Using \fBinput.conf\fP, it is also possible to directly display a certain page:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
i script\-binding stats/display\-page\-1
e script\-binding stats/display\-page\-2
.ft P
.fi
.UNINDENT
.UNINDENT
.SH CONSOLE
.sp
The console is a REPL for mpv input commands. It is displayed on the video
window. It also shows log messages. It can be disabled entirely using the
\fB\-\-load\-osd\-console=no\fP option.
.SS Keybindings
.INDENT 0.0
.TP
.B \(ga
Show the console.
.TP
.B ESC
Hide the console.
.TP
.B ENTER
Run the typed command.
.TP
.B Shift+ENTER
Type a literal newline character.
.TP
.B Ctrl+LEFT and Ctrl+RIGHT
Move cursor to previous/next word.
.TP
.B UP and DOWN
Navigate command history.
.TP
.B PGUP
Go to the first command in the history.
.TP
.B PGDN
Stop navigating command history.
.TP
.B INSERT
Toggle insert mode.
.TP
.B Shift+INSERT
Paste text (uses the primary selection on X11.)
.TP
.B TAB
Complete the command or property name at the cursor.
.TP
.B Ctrl+C
Clear current line.
.TP
.B Ctrl+K.
Delete text from the cursor to the end of the line.
.TP
.B Ctrl+L
Clear all log messages from the console.
.TP
.B Ctrl+U
Delete text from the cursor to the beginning of the line.
.TP
.B Ctrl+V
Paste text (uses the clipboard on X11.)
.TP
.B Ctrl+W
Delete text from the cursor to the beginning of the current word.
.UNINDENT
.SS Commands
.INDENT 0.0
.TP
.B \fBscript\-message\-to console type <text>\fP
Show the console and pre\-fill it with the provided text.
.UNINDENT
.SS Known issues
.INDENT 0.0
.IP \(bu 2
Pasting text is slow on Windows
.IP \(bu 2
Non\-ASCII keyboard input has restrictions
.IP \(bu 2
The cursor keys move between Unicode code\-points, not grapheme clusters
.UNINDENT
.SS Configuration
.sp
This script can be customized through a config file \fBscript\-opts/console.conf\fP
placed in mpv\(aqs user directory and through the \fB\-\-script\-opts\fP command\-line
option. The configuration syntax is described in \fI\%ON SCREEN CONTROLLER\fP\&.
.sp
Key bindings can be changed in a standard way, see for example stats.lua
documentation.
.SS Configurable Options
.INDENT 0.0
.TP
.B \fBscale\fP
Default: 1
.sp
All drawing is scaled by this value, including the text borders and the
cursor.
.sp
If the VO backend in use has HiDPI scale reporting implemented, the option
value is scaled with the reported HiDPI scale.
.TP
.B \fBfont\fP
Default: unset (picks a hardcoded font depending on detected platform)
.sp
Set the font used for the REPL and the console. This probably doesn\(aqt
have to be a monospaced font.
.TP
.B \fBfont_size\fP
Default: 16
.sp
Set the font size used for the REPL and the console. This will be
multiplied by "scale."
.UNINDENT
.SH LUA SCRIPTING
.sp
mpv can load Lua scripts. Scripts passed to the \fB\-\-script\fP option, or found in
the \fBscripts\fP subdirectory of the mpv configuration directory (usually
\fB~/.config/mpv/scripts/\fP) will be loaded on program start. mpv also appends the
\fBscripts\fP subdirectory to the end of Lua\(aqs path so you can import scripts from
there too. Since it\(aqs added to the end, don\(aqt name scripts you want to import
the same as Lua libraries because they will be overshadowed by them.
.sp
mpv provides the built\-in module \fBmp\fP, which contains functions to send
commands to the mpv core and to retrieve information about playback state, user
settings, file information, and so on.
.sp
These scripts can be used to control mpv in a similar way to slave mode.
Technically, the Lua code uses the client API internally.
.SS Example
.sp
A script which leaves fullscreen mode when the player is paused:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
function on_pause_change(name, value)
    if value == true then
        mp.set_property("fullscreen", "no")
    end
end
mp.observe_property("pause", "bool", on_pause_change)
.ft P
.fi
.UNINDENT
.UNINDENT
.SS Details on the script initialization and lifecycle
.sp
Your script will be loaded by the player at program start from the \fBscripts\fP
configuration subdirectory, or from a path specified with the \fB\-\-script\fP
option. Some scripts are loaded internally (like \fB\-\-osc\fP). Each script runs in
its own thread. Your script is first run "as is", and once that is done, the event loop
is entered. This event loop will dispatch events received by mpv and call your
own event handlers which you have registered with \fBmp.register_event\fP, or
timers added with \fBmp.add_timeout\fP or similar. Note that since the
script starts execution concurrently with player initialization, some properties
may not be populated with meaningful values until the relevant subsystems have
initialized.
.sp
When the player quits, all scripts will be asked to terminate. This happens via
a \fBshutdown\fP event, which by default will make the event loop return. If your
script got into an endless loop, mpv will probably behave fine during playback,
but it won\(aqt terminate when quitting, because it\(aqs waiting on your script.
.sp
Internally, the C code will call the Lua function \fBmp_event_loop\fP after
loading a Lua script. This function is normally defined by the default prelude
loaded before your script (see \fBplayer/lua/defaults.lua\fP in the mpv sources).
The event loop will wait for events and dispatch events registered with
\fBmp.register_event\fP\&. It will also handle timers added with \fBmp.add_timeout\fP
and similar (by waiting with a timeout).
.sp
Since mpv 0.6.0, the player will wait until the script is fully loaded before
continuing normal operation. The player considers a script as fully loaded as
soon as it starts waiting for mpv events (or it exits). In practice this means
the player will more or less hang until the script returns from the main chunk
(and \fBmp_event_loop\fP is called), or the script calls \fBmp_event_loop\fP or
\fBmp.dispatch_events\fP directly. This is done to make it possible for a script
to fully setup event handlers etc. before playback actually starts. In older
mpv versions, this happened asynchronously. With mpv 0.29.0, this changes
slightly, and it merely waits for scripts to be loaded in this manner before
starting playback as part of the player initialization phase. Scripts run though
initialization in parallel. This might change again.
.SS mp functions
.sp
The \fBmp\fP module is preloaded, although it can be loaded manually with
\fBrequire \(aqmp\(aq\fP\&. It provides the core client API.
.INDENT 0.0
.TP
.B \fBmp.command(string)\fP
Run the given command. This is similar to the commands used in input.conf.
See \fI\%List of Input Commands\fP\&.
.sp
By default, this will show something on the OSD (depending on the command),
as if it was used in \fBinput.conf\fP\&. See \fI\%Input Command Prefixes\fP how
to influence OSD usage per command.
.sp
Returns \fBtrue\fP on success, or \fBnil, error\fP on error.
.TP
.B \fBmp.commandv(arg1, arg2, ...)\fP
Similar to \fBmp.command\fP, but pass each command argument as separate
parameter. This has the advantage that you don\(aqt have to care about
quoting and escaping in some cases.
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
mp.command("loadfile " .. filename .. " append")
mp.commandv("loadfile", filename, "append")
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
These two commands are equivalent, except that the first version breaks
if the filename contains spaces or certain special characters.
.sp
Note that properties are \fInot\fP expanded.  You can use either \fBmp.command\fP,
the \fBexpand\-properties\fP prefix, or the \fBmp.get_property\fP family of
functions.
.sp
Unlike \fBmp.command\fP, this will not use OSD by default either (except
for some OSD\-specific commands).
.TP
.B \fBmp.command_native(table [,def])\fP
Similar to \fBmp.commandv\fP, but pass the argument list as table. This has
the advantage that in at least some cases, arguments can be passed as
native types. It also allows you to use named argument.
.sp
If the table is an array, each array item is like an argument in
\fBmp.commandv()\fP (but can be a native type instead of a string).
.sp
If the table contains string keys, it\(aqs interpreted as command with named
arguments. This requires at least an entry with the key \fBname\fP to be
present, which must be a string, and contains the command name. The special
entry \fB_flags\fP is optional, and if present, must be an array of
\fI\%Input Command Prefixes\fP to apply. All other entries are interpreted as
arguments.
.sp
Returns a result table on success (usually empty), or \fBdef, error\fP on
error. \fBdef\fP is the second parameter provided to the function, and is
nil if it\(aqs missing.
.TP
.B \fBmp.command_native_async(table [,fn])\fP
Like \fBmp.command_native()\fP, but the command is ran asynchronously (as far
as possible), and upon completion, fn is called. fn has two arguments:
\fBfn(success, result, error)\fP\&. \fBsuccess\fP is always a Boolean and is true
if the command was successful, otherwise false. The second parameter is
the result value (can be nil) in case of success, nil otherwise (as returned
by \fBmp.command_native()\fP). The third parameter is the error string in case
of an error, nil otherwise.
.sp
Returns a table with undefined contents, which can be used as argument for
\fBmp.abort_async_command\fP\&.
.sp
If starting the command failed for some reason, \fBnil, error\fP is returned,
and \fBfn\fP is called indicating failure, using the same error value.
.TP
.B \fBmp.abort_async_command(t)\fP
Abort a \fBmp.command_native_async\fP call. The argument is the return value
of that command (which starts asynchronous execution of the command).
Whether this works and how long it takes depends on the command and the
situation. The abort call itself is asynchronous. Does not return anything.
.TP
.B \fBmp.get_property(name [,def])\fP
Return the value of the given property as string. These are the same
properties as used in input.conf. See \fI\%Properties\fP for a list of
properties. The returned string is formatted similar to \fB${=name}\fP
(see \fI\%Property Expansion\fP).
.sp
Returns the string on success, or \fBdef, error\fP on error. \fBdef\fP is the
second parameter provided to the function, and is nil if it\(aqs missing.
.TP
.B \fBmp.get_property_osd(name [,def])\fP
Similar to \fBmp.get_property\fP, but return the property value formatted for
OSD. This is the same string as printed with \fB${name}\fP when used in
input.conf.
.sp
Returns the string on success, or \fBdef, error\fP on error. \fBdef\fP is the
second parameter provided to the function, and is an empty string if it\(aqs
missing. Unlike \fBget_property()\fP, assigning the return value to a variable
will always result in a string.
.TP
.B \fBmp.get_property_bool(name [,def])\fP
Similar to \fBmp.get_property\fP, but return the property value as Boolean.
.sp
Returns a Boolean on success, or \fBdef, error\fP on error.
.TP
.B \fBmp.get_property_number(name [,def])\fP
Similar to \fBmp.get_property\fP, but return the property value as number.
.sp
Note that while Lua does not distinguish between integers and floats,
mpv internals do. This function simply request a double float from mpv,
and mpv will usually convert integer property values to float.
.sp
Returns a number on success, or \fBdef, error\fP on error.
.TP
.B \fBmp.get_property_native(name [,def])\fP
Similar to \fBmp.get_property\fP, but return the property value using the best
Lua type for the property. Most time, this will return a string, Boolean,
or number. Some properties (for example \fBchapter\-list\fP) are returned as
tables.
.sp
Returns a value on success, or \fBdef, error\fP on error. Note that \fBnil\fP
might be a possible, valid value too in some corner cases.
.TP
.B \fBmp.set_property(name, value)\fP
Set the given property to the given string value. See \fBmp.get_property\fP
and \fI\%Properties\fP for more information about properties.
.sp
Returns true on success, or \fBnil, error\fP on error.
.TP
.B \fBmp.set_property_bool(name, value)\fP
Similar to \fBmp.set_property\fP, but set the given property to the given
Boolean value.
.TP
.B \fBmp.set_property_number(name, value)\fP
Similar to \fBmp.set_property\fP, but set the given property to the given
numeric value.
.sp
Note that while Lua does not distinguish between integers and floats,
mpv internals do. This function will test whether the number can be
represented as integer, and if so, it will pass an integer value to mpv,
otherwise a double float.
.TP
.B \fBmp.set_property_native(name, value)\fP
Similar to \fBmp.set_property\fP, but set the given property using its native
type.
.sp
Since there are several data types which cannot represented natively in
Lua, this might not always work as expected. For example, while the Lua
wrapper can do some guesswork to decide whether a Lua table is an array
or a map, this would fail with empty tables. Also, there are not many
properties for which it makes sense to use this, instead of
\fBset_property\fP, \fBset_property_bool\fP, \fBset_property_number\fP\&.
For these reasons, this function should probably be avoided for now, except
for properties that use tables natively.
.TP
.B \fBmp.get_time()\fP
Return the current mpv internal time in seconds as a number. This is
basically the system time, with an arbitrary offset.
.TP
.B \fBmp.add_key_binding(key, name|fn [,fn [,flags]])\fP
Register callback to be run on a key binding. The binding will be mapped to
the given \fBkey\fP, which is a string describing the physical key. This uses
the same key names as in input.conf, and also allows combinations
(e.g. \fBctrl+a\fP). If the key is empty or \fBnil\fP, no physical key is
registered, but the user still can create own bindings (see below).
.sp
After calling this function, key presses will cause the function \fBfn\fP to
be called (unless the user remapped the key with another binding).
.sp
The \fBname\fP argument should be a short symbolic string. It allows the user
to remap the key binding via input.conf using the \fBscript\-message\fP
command, and the name of the key binding (see below for
an example). The name should be unique across other bindings in the same
script \- if not, the previous binding with the same name will be
overwritten. You can omit the name, in which case a random name is generated
internally. (Omitting works as follows: either pass \fBnil\fP for \fBname\fP,
or pass the \fBfn\fP argument in place of the name. The latter is not
recommended and is handled for compatibility only.)
.sp
The last argument is used for optional flags. This is a table, which can
have the following entries:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBrepeatable\fP
If set to \fBtrue\fP, enables key repeat for this specific binding.
.TP
.B \fBcomplex\fP
If set to \fBtrue\fP, then \fBfn\fP is called on both key up and down
events (as well as key repeat, if enabled), with the first
argument being a table. This table has the following entries (and
may contain undocumented ones):
.INDENT 7.0
.TP
.B \fBevent\fP
Set to one of the strings \fBdown\fP, \fBrepeat\fP, \fBup\fP or
\fBpress\fP (the latter if key up/down can\(aqt be tracked).
.TP
.B \fBis_mouse\fP
Boolean Whether the event was caused by a mouse button.
.TP
.B \fBkey_name\fP
The name of they key that triggered this, or \fBnil\fP if invoked
artificially. If the key name is unknown, it\(aqs an empty string.
.TP
.B \fBkey_text\fP
Text if triggered by a text key, otherwise \fBnil\fP\&. See
description of \fBscript\-binding\fP command for details (this
field is equivalent to the 5th argument).
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Internally, key bindings are dispatched via the \fBscript\-message\-to\fP or
\fBscript\-binding\fP input commands and \fBmp.register_script_message\fP\&.
.sp
Trying to map multiple commands to a key will essentially prefer a random
binding, while the other bindings are not called. It is guaranteed that
user defined bindings in the central input.conf are preferred over bindings
added with this function (but see \fBmp.add_forced_key_binding\fP).
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
function something_handler()
    print("the key was pressed")
end
mp.add_key_binding("x", "something", something_handler)
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This will print the message \fBthe key was pressed\fP when \fBx\fP was pressed.
.sp
The user can remap these key bindings. Then the user has to put the
following into their input.conf to remap the command to the \fBy\fP key:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
y script\-binding something
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This will print the message when the key \fBy\fP is pressed. (\fBx\fP will
still work, unless the user remaps it.)
.sp
You can also explicitly send a message to a named script only. Assume the
above script was using the filename \fBfooscript.lua\fP:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
y script\-binding fooscript/something
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBmp.add_forced_key_binding(...)\fP
This works almost the same as \fBmp.add_key_binding\fP, but registers the
key binding in a way that will overwrite the user\(aqs custom bindings in their
input.conf. (\fBmp.add_key_binding\fP overwrites default key bindings only,
but not those by the user\(aqs input.conf.)
.TP
.B \fBmp.remove_key_binding(name)\fP
Remove a key binding added with \fBmp.add_key_binding\fP or
\fBmp.add_forced_key_binding\fP\&. Use the same name as you used when adding
the bindings. It\(aqs not possible to remove bindings for which you omitted
the name.
.TP
.B \fBmp.register_event(name, fn)\fP
Call a specific function when an event happens. The event name is a string,
and the function fn is a Lua function value.
.sp
Some events have associated data. This is put into a Lua table and passed
as argument to fn. The Lua table by default contains a \fBname\fP field,
which is a string containing the event name. If the event has an error
associated, the \fBerror\fP field is set to a string describing the error,
on success it\(aqs not set.
.sp
If multiple functions are registered for the same event, they are run in
registration order, which the first registered function running before all
the other ones.
.sp
Returns true if such an event exists, false otherwise.
.sp
See \fI\%Events\fP and \fI\%List of events\fP for details.
.TP
.B \fBmp.unregister_event(fn)\fP
Undo \fBmp.register_event(..., fn)\fP\&. This removes all event handlers that
are equal to the \fBfn\fP parameter. This uses normal Lua \fB==\fP comparison,
so be careful when dealing with closures.
.TP
.B \fBmp.observe_property(name, type, fn)\fP
Watch a property for changes. If the property \fBname\fP is changed, then
the function \fBfn(name)\fP will be called. \fBtype\fP can be \fBnil\fP, or be
set to one of \fBnone\fP, \fBnative\fP, \fBbool\fP, \fBstring\fP, or \fBnumber\fP\&.
\fBnone\fP is the same as \fBnil\fP\&. For all other values, the new value of
the property will be passed as second argument to \fBfn\fP, using
\fBmp.get_property_<type>\fP to retrieve it. This means if \fBtype\fP is for
example \fBstring\fP, \fBfn\fP is roughly called as in
\fBfn(name, mp.get_property_string(name))\fP\&.
.sp
If possible, change events are coalesced. If a property is changed a bunch
of times in a row, only the last change triggers the change function. (The
exact behavior depends on timing and other things.)
.sp
If a property is unavailable, or on error, the value argument to \fBfn\fP is
\fBnil\fP\&. (The \fBobserve_property()\fP call always succeeds, even if a
property does not exist.)
.sp
In some cases the function is not called even if the property changes.
This depends on the property, and it\(aqs a valid feature request to ask for
better update handling of a specific property.
.sp
If the \fBtype\fP is \fBnone\fP or \fBnil\fP, sporadic property change events are
possible. This means the change function \fBfn\fP can be called even if the
property doesn\(aqt actually change.
.sp
You always get an initial change notification. This is meant to initialize
the user\(aqs state to the current value of the property.
.TP
.B \fBmp.unobserve_property(fn)\fP
Undo \fBmp.observe_property(..., fn)\fP\&. This removes all property handlers
that are equal to the \fBfn\fP parameter. This uses normal Lua \fB==\fP
comparison, so be careful when dealing with closures.
.TP
.B \fBmp.add_timeout(seconds, fn)\fP
Call the given function fn when the given number of seconds has elapsed.
Note that the number of seconds can be fractional. For now, the timer\(aqs
resolution may be as low as 50 ms, although this will be improved in the
future.
.sp
This is a one\-shot timer: it will be removed when it\(aqs fired.
.sp
Returns a timer object. See \fBmp.add_periodic_timer\fP for details.
.TP
.B \fBmp.add_periodic_timer(seconds, fn)\fP
Call the given function periodically. This is like \fBmp.add_timeout\fP, but
the timer is re\-added after the function fn is run.
.INDENT 7.0
.TP
.B Returns a timer object. The timer object provides the following methods:
.INDENT 7.0
.TP
.B \fBstop()\fP
Disable the timer. Does nothing if the timer is already disabled.
This will remember the current elapsed time when stopping, so that
\fBresume()\fP essentially unpauses the timer.
.TP
.B \fBkill()\fP
Disable the timer. Resets the elapsed time. \fBresume()\fP will
restart the timer.
.TP
.B \fBresume()\fP
Restart the timer. If the timer was disabled with \fBstop()\fP, this
will resume at the time it was stopped. If the timer was disabled
with \fBkill()\fP, or if it\(aqs a previously fired one\-shot timer (added
with \fBadd_timeout()\fP), this starts the timer from the beginning,
using the initially configured timeout.
.TP
.B \fBis_enabled()\fP
Whether the timer is currently enabled or was previously disabled
(e.g. by \fBstop()\fP or \fBkill()\fP).
.TP
.B \fBtimeout\fP (RW)
This field contains the current timeout period. This value is not
updated as time progresses. It\(aqs only used to calculate when the
timer should fire next when the timer expires.
.sp
If you write this, you can call \fBt:kill() ; t:resume()\fP to reset
the current timeout to the new one. (\fBt:stop()\fP won\(aqt use the
new timeout.)
.TP
.B \fBoneshot\fP (RW)
Whether the timer is periodic (\fBfalse\fP) or fires just once
(\fBtrue\fP). This value is used when the timer expires (but before
the timer callback function fn is run).
.UNINDENT
.UNINDENT
.sp
Note that these are methods, and you have to call them using \fB:\fP instead
of \fB\&.\fP (Refer to \fI\%http://www.lua.org/manual/5.2/manual.html#3.4.9\fP .)
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
seconds = 0
timer = mp.add_periodic_timer(1, function()
    print("called every second")
    # stop it after 10 seconds
    seconds = seconds + 1
    if seconds >= 10 then
        timer:kill()
    end
end)
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBmp.get_opt(key)\fP
Return a setting from the \fB\-\-script\-opts\fP option. It\(aqs up to the user and
the script how this mechanism is used. Currently, all scripts can access
this equally, so you should be careful about collisions.
.TP
.B \fBmp.get_script_name()\fP
Return the name of the current script. The name is usually made of the
filename of the script, with directory and file extension removed. If
there are several scripts which would have the same name, it\(aqs made unique
by appending a number.
.INDENT 7.0
.INDENT 3.5
.IP "Example"
.sp
The script \fB/path/to/fooscript.lua\fP becomes \fBfooscript\fP\&.
.UNINDENT
.UNINDENT
.TP
.B \fBmp.osd_message(text [,duration])\fP
Show an OSD message on the screen. \fBduration\fP is in seconds, and is
optional (uses \fB\-\-osd\-duration\fP by default).
.UNINDENT
.SS Advanced mp functions
.sp
These also live in the \fBmp\fP module, but are documented separately as they
are useful only in special situations.
.INDENT 0.0
.TP
.B \fBmp.suspend()\fP
This function has been deprecated in mpv 0.21.0 and does nothing starting
with mpv 0.23.0 (no replacement).
.TP
.B \fBmp.resume()\fP
This function has been deprecated in mpv 0.21.0 and does nothing starting
with mpv 0.23.0 (no replacement).
.TP
.B \fBmp.resume_all()\fP
This function has been deprecated in mpv 0.21.0 and does nothing starting
with mpv 0.23.0 (no replacement).
.TP
.B \fBmp.get_wakeup_pipe()\fP
Calls \fBmpv_get_wakeup_pipe()\fP and returns the read end of the wakeup
pipe. This is deprecated, but still works. (See \fBclient.h\fP for details.)
.TP
.B \fBmp.get_next_timeout()\fP
Return the relative time in seconds when the next timer (\fBmp.add_timeout\fP
and similar) expires. If there is no timer, return \fBnil\fP\&.
.TP
.B \fBmp.dispatch_events([allow_wait])\fP
This can be used to run custom event loops. If you want to have direct
control what the Lua script does (instead of being called by the default
event loop), you can set the global variable \fBmp_event_loop\fP to your
own function running the event loop. From your event loop, you should call
\fBmp.dispatch_events()\fP to dequeue and dispatch mpv events.
.sp
If the \fBallow_wait\fP parameter is set to \fBtrue\fP, the function will block
until the next event is received or the next timer expires. Otherwise (and
this is the default behavior), it returns as soon as the event loop is
emptied. It\(aqs strongly recommended to use \fBmp.get_next_timeout()\fP and
\fBmp.get_wakeup_pipe()\fP if you\(aqre interested in properly working
notification of new events and working timers.
.TP
.B \fBmp.register_idle(fn)\fP
Register an event loop idle handler. Idle handlers are called before the
script goes to sleep after handling all new events. This can be used for
example to delay processing of property change events: if you\(aqre observing
multiple properties at once, you might not want to act on each property
change, but only when all change notifications have been received.
.TP
.B \fBmp.unregister_idle(fn)\fP
Undo \fBmp.register_idle(fn)\fP\&. This removes all idle handlers that
are equal to the \fBfn\fP parameter. This uses normal Lua \fB==\fP comparison,
so be careful when dealing with closures.
.TP
.B \fBmp.enable_messages(level)\fP
Set the minimum log level of which mpv message output to receive. These
messages are normally printed to the terminal. By calling this function,
you can set the minimum log level of messages which should be received with
the \fBlog\-message\fP event. See the description of this event for details.
The level is a string, see \fBmsg.log\fP for allowed log levels.
.TP
.B \fBmp.register_script_message(name, fn)\fP
This is a helper to dispatch \fBscript\-message\fP or \fBscript\-message\-to\fP
invocations to Lua functions. \fBfn\fP is called if \fBscript\-message\fP or
\fBscript\-message\-to\fP (with this script as destination) is run
with \fBname\fP as first parameter. The other parameters are passed to \fBfn\fP\&.
If a message with the given name is already registered, it\(aqs overwritten.
.sp
Used by \fBmp.add_key_binding\fP, so be careful about name collisions.
.TP
.B \fBmp.unregister_script_message(name)\fP
Undo a previous registration with \fBmp.register_script_message\fP\&. Does
nothing if the \fBname\fP wasn\(aqt registered.
.TP
.B \fBmp.create_osd_overlay(format)\fP
Create an OSD overlay. This is a very thin wrapper around the \fBosd\-overlay\fP
command. The function returns a table, which mostly contains fields that
will be passed to \fBosd\-overlay\fP\&. The \fBformat\fP parameter is used to
initialize the \fBformat\fP field. The \fBdata\fP field contains the text to
be used as overlay. For details, see the \fBosd\-overlay\fP command.
.sp
In addition, it provides the following methods:
.INDENT 7.0
.TP
.B \fBupdate()\fP
Commit the OSD overlay to the screen, or in other words, run the
\fBosd\-overlay\fP command with the current fields of the overlay table.
.TP
.B \fBremove()\fP
Remove the overlay from the screen. A \fBupdate()\fP call will add it
again.
.UNINDENT
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
ov = mp.create_osd_overlay("ass\-events")
ov.data = "{\e\ean5}{\e\eb1}hello world!"
ov:update()
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The advantage of using this wrapper (as opposed to running \fBosd\-overlay\fP
directly) is that the \fBid\fP field is allocated automatically.
.TP
.B \fBmp.get_osd_size()\fP
Returns a tuple of \fBosd_width, osd_height, osd_par\fP\&. The first two give
the size of the OSD in pixels (for video ouputs like \fB\-\-vo=xv\fP, this may
be "scaled" pixels). The third is the display pixel aspect ratio.
.sp
May return invalid/nonsense values if OSD is not initialized yet.
.UNINDENT
.SS mp.msg functions
.sp
This module allows outputting messages to the terminal, and can be loaded
with \fBrequire \(aqmp.msg\(aq\fP\&.
.INDENT 0.0
.TP
.B \fBmsg.log(level, ...)\fP
The level parameter is the message priority. It\(aqs a string and one of
\fBfatal\fP, \fBerror\fP, \fBwarn\fP, \fBinfo\fP, \fBv\fP, \fBdebug\fP, \fBtrace\fP\&. The
user\(aqs settings will determine which of these messages will be
visible. Normally, all messages are visible, except \fBv\fP, \fBdebug\fP and
\fBtrace\fP\&.
.sp
The parameters after that are all converted to strings. Spaces are inserted
to separate multiple parameters.
.sp
You don\(aqt need to add newlines.
.TP
.B \fBmsg.fatal(...)\fP, \fBmsg.error(...)\fP, \fBmsg.warn(...)\fP, \fBmsg.info(...)\fP, \fBmsg.verbose(...)\fP, \fBmsg.debug(...)\fP, \fBmsg.trace(...)\fP
All of these are shortcuts and equivalent to the corresponding
\fBmsg.log(level, ...)\fP call.
.UNINDENT
.SS mp.options functions
.sp
mpv comes with a built\-in module to manage options from config\-files and the
command\-line. All you have to do is to supply a table with default options to
the read_options function. The function will overwrite the default values
with values found in the config\-file and the command\-line (in that order).
.INDENT 0.0
.TP
.B \fBoptions.read_options(table [, identifier [, on_update]])\fP
A \fBtable\fP with key\-value pairs. The type of the default values is
important for converting the values read from the config file or
command\-line back. Do not use \fBnil\fP as a default value!
.sp
The \fBidentifier\fP is used to identify the config\-file and the command\-line
options. These needs to unique to avoid collisions with other scripts.
Defaults to \fBmp.get_script_name()\fP if the parameter is \fBnil\fP or missing.
.sp
The \fBon_update\fP parameter enables run\-time updates of all matching option
values via the \fBscript\-opts\fP option/property. If any of the matching
options changes, the values in the \fBtable\fP (which was originally passed to
the function) are changed, and \fBon_update(list)\fP is called. \fBlist\fP is
a table where each updated option has a \fBlist[option_name] = true\fP entry.
There is no initial \fBon_update()\fP call. This never re\-reads the config file.
\fBscript\-opts\fP is always applied on the original config file, ignoring
previous \fBscript\-opts\fP values (for example, if an option is removed from
\fBscript\-opts\fP at runtime, the option will have the value in the config
file). \fBtable\fP entries are only written for option values whose values
effectively change (this is important if the script changes \fBtable\fP
entries independently).
.UNINDENT
.sp
Example implementation:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
require \(aqmp.options\(aq
local options = {
    optionA = "defaultvalueA",
    optionB = \-0.5,
    optionC = true,
}
read_options(options, "myscript")
print(options.optionA)
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The config file will be stored in \fBscript\-opts/identifier.conf\fP in mpv\(aqs user
folder. Comment lines can be started with # and stray spaces are not removed.
Boolean values will be represented with yes/no.
.sp
Example config:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
# comment
optionA=Hello World
optionB=9999
optionC=no
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Command\-line options are read from the \fB\-\-script\-opts\fP parameter. To avoid
collisions, all keys have to be prefixed with \fBidentifier\-\fP\&.
.sp
Example command\-line:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
\-\-script\-opts=myscript\-optionA=TEST,myscript\-optionB=0,myscript\-optionC=yes
.ft P
.fi
.UNINDENT
.UNINDENT
.SS mp.utils functions
.sp
This built\-in module provides generic helper functions for Lua, and have
strictly speaking nothing to do with mpv or video/audio playback. They are
provided for convenience. Most compensate for Lua\(aqs scarce standard library.
.sp
Be warned that any of these functions might disappear any time. They are not
strictly part of the guaranteed API.
.INDENT 0.0
.TP
.B \fButils.getcwd()\fP
Returns the directory that mpv was launched from. On error, \fBnil, error\fP
is returned.
.TP
.B \fButils.readdir(path [, filter])\fP
Enumerate all entries at the given path on the filesystem, and return them
as array. Each entry is a directory entry (without the path).
The list is unsorted (in whatever order the operating system returns it).
.sp
If the \fBfilter\fP argument is given, it must be one of the following
strings:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBfiles\fP
List regular files only. This excludes directories, special files
(like UNIX device files or FIFOs), and dead symlinks. It includes
UNIX symlinks to regular files.
.TP
.B \fBdirs\fP
List directories only, or symlinks to directories. \fB\&.\fP and \fB\&..\fP
are not included.
.TP
.B \fBnormal\fP
Include the results of both \fBfiles\fP and \fBdirs\fP\&. (This is the
default.)
.TP
.B \fBall\fP
List all entries, even device files, dead symlinks, FIFOs, and the
\fB\&.\fP and \fB\&..\fP entries.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
On error, \fBnil, error\fP is returned.
.TP
.B \fButils.file_info(path)\fP
Stats the given path for information and returns a table with the
following entries:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBmode\fP
protection bits (on Windows, always 755 (octal) for directories
and 644 (octal) for files)
.TP
.B \fBsize\fP
size in bytes
.TP
.B \fBatime\fP
time of last access
.TP
.B \fBmtime\fP
time of last modification
.TP
.B \fBctime\fP
time of last metadata change (Linux) / time of creation (Windows)
.TP
.B \fBis_file\fP
Whether \fBpath\fP is a regular file (boolean)
.TP
.B \fBis_dir\fP
Whether \fBpath\fP is a directory (boolean)
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBmode\fP and \fBsize\fP are integers.
Timestamps (\fBatime\fP, \fBmtime\fP and \fBctime\fP) are integer seconds since
the Unix epoch (Unix time).
The booleans \fBis_file\fP and \fBis_dir\fP are provided as a convenience;
they can be and are derived from \fBmode\fP\&.
.sp
On error (eg. path does not exist), \fBnil, error\fP is returned.
.TP
.B \fButils.split_path(path)\fP
Split a path into directory component and filename component, and return
them. The first return value is always the directory. The second return
value is the trailing part of the path, the directory entry.
.TP
.B \fButils.join_path(p1, p2)\fP
Return the concatenation of the 2 paths. Tries to be clever. For example,
if \fB\(gap2\fP is an absolute path, p2 is returned without change.
.TP
.B \fButils.subprocess(t)\fP
Runs an external process and waits until it exits. Returns process status
and the captured output. This is a legacy wrapper around calling the
\fBsubprocess\fP command with \fBmp.command_native\fP\&. It does the following
things:
.INDENT 7.0
.IP \(bu 2
copy the table \fBt\fP
.IP \(bu 2
rename \fBcancellable\fP field to \fBplayback_only\fP
.IP \(bu 2
rename \fBmax_size\fP to \fBcapture_size\fP
.IP \(bu 2
set \fBcapture_stdout\fP field to \fBtrue\fP if unset
.IP \(bu 2
set \fBname\fP field to \fBsubprocess\fP
.IP \(bu 2
call \fBmp.command_native(copied_t)\fP
.IP \(bu 2
if the command failed, create a dummy result table
.IP \(bu 2
copy \fBerror_string\fP to \fBerror\fP field if the string is non\-empty
.IP \(bu 2
return the result table
.UNINDENT
.sp
It is recommended to use \fBmp.command_native\fP or \fBmp.command_native_async\fP
directly, instead of calling this legacy wrapper. It is for compatibility
only.
.sp
See the \fBsubprocess\fP documentation for semantics and further parameters.
.TP
.B \fButils.subprocess_detached(t)\fP
Runs an external process and detaches it from mpv\(aqs control.
.sp
The parameter \fBt\fP is a table. The function reads the following entries:
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBargs\fP
Array of strings of the same semantics as the \fBargs\fP used in the
\fBsubprocess\fP function.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
The function returns \fBnil\fP\&.
.sp
This is a legacy wrapper around calling the \fBrun\fP command with
\fBmp.commandv\fP and other functions.
.TP
.B \fButils.getpid()\fP
Returns the process ID of the running mpv process. This can be used to identify
the calling mpv when launching (detached) subprocesses.
.TP
.B \fButils.parse_json(str [, trail])\fP
Parses the given string argument as JSON, and returns it as a Lua table. On
error, returns \fBnil, error\fP\&. (Currently, \fBerror\fP is just a string
reading \fBerror\fP, because there is no fine\-grained error reporting of any
kind.)
.sp
The returned value uses similar conventions as \fBmp.get_property_native()\fP
to distinguish empty objects and arrays.
.sp
If the \fBtrail\fP parameter is \fBtrue\fP (or any value equal to \fBtrue\fP),
then trailing non\-whitespace text is tolerated by the function, and the
trailing text is returned as 3rd return value. (The 3rd return value is
always there, but with \fBtrail\fP set, no error is raised.)
.TP
.B \fButils.format_json(v)\fP
Format the given Lua table (or value) as a JSON string and return it. On
error, returns \fBnil, error\fP\&. (Errors usually only happen on value types
incompatible with JSON.)
.sp
The argument value uses similar conventions as \fBmp.set_property_native()\fP
to distinguish empty objects and arrays.
.TP
.B \fButils.to_string(v)\fP
Turn the given value into a string. Formats tables and their contents. This
doesn\(aqt do anything special; it is only needed because Lua is terrible.
.UNINDENT
.SS Events
.sp
Events are notifications from player core to scripts. You can register an
event handler with \fBmp.register_event\fP\&.
.sp
Note that all scripts (and other parts of the player) receive events equally,
and there\(aqs no such thing as blocking other scripts from receiving events.
.sp
Example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
function my_fn(event)
    print("start of playback!")
end

mp.register_event("file\-loaded", my_fn)
.ft P
.fi
.UNINDENT
.UNINDENT
.SS List of events
.INDENT 0.0
.TP
.B \fBstart\-file\fP
Happens right before a new file is loaded. When you receive this, the
player is loading the file (or possibly already done with it).
.TP
.B \fBend\-file\fP
Happens after a file was unloaded. Typically, the player will load the
next file right away, or quit if this was the last file.
.sp
The event has the \fBreason\fP field, which takes one of these values:
.INDENT 7.0
.TP
.B \fBeof\fP
The file has ended. This can (but doesn\(aqt have to) include
incomplete files or broken network connections under
circumstances.
.TP
.B \fBstop\fP
Playback was ended by a command.
.TP
.B \fBquit\fP
Playback was ended by sending the quit command.
.TP
.B \fBerror\fP
An error happened. In this case, an \fBerror\fP field is present with
the error string.
.TP
.B \fBredirect\fP
Happens with playlists and similar. Details see
\fBMPV_END_FILE_REASON_REDIRECT\fP in the C API.
.TP
.B \fBunknown\fP
Unknown. Normally doesn\(aqt happen, unless the Lua API is out of sync
with the C API. (Likewise, it could happen that your script gets
reason strings that did not exist yet at the time your script was
written.)
.UNINDENT
.TP
.B \fBfile\-loaded\fP
Happens after a file was loaded and begins playback.
.TP
.B \fBseek\fP
Happens on seeking. (This might include cases when the player seeks
internally, even without user interaction. This includes e.g. segment
changes when playing ordered chapters Matroska files.)
.TP
.B \fBplayback\-restart\fP
Start of playback after seek or after file was loaded.
.TP
.B \fBidle\fP
Idle mode is entered. This happens when playback ended, and the player was
started with \fB\-\-idle\fP or \fB\-\-force\-window\fP\&. This mode is implicitly ended
when the \fBstart\-file\fP or \fBshutdown\fP events happen.
.TP
.B \fBtick\fP
Called after a video frame was displayed. This is a hack, and you should
avoid using it. Use timers instead and maybe watch pausing/unpausing events
to avoid wasting CPU when the player is paused.
.TP
.B \fBshutdown\fP
Sent when the player quits, and the script should terminate. Normally
handled automatically. See \fI\%Details on the script initialization and lifecycle\fP\&.
.TP
.B \fBlog\-message\fP
Receives messages enabled with \fBmp.enable_messages\fP\&. The message data
is contained in the table passed as first parameter to the event handler.
The table contains, in addition to the default event fields, the following
fields:
.INDENT 7.0
.TP
.B \fBprefix\fP
The module prefix, identifies the sender of the message. This is what
the terminal player puts in front of the message text when using the
\fB\-\-v\fP option, and is also what is used for \fB\-\-msg\-level\fP\&.
.TP
.B \fBlevel\fP
The log level as string. See \fBmsg.log\fP for possible log level names.
Note that later versions of mpv might add new levels or remove
(undocumented) existing ones.
.TP
.B \fBtext\fP
The log message. The text will end with a newline character. Sometimes
it can contain multiple lines.
.UNINDENT
.sp
Keep in mind that these messages are meant to be hints for humans. You
should not parse them, and prefix/level/text of messages might change
any time.
.TP
.B \fBget\-property\-reply\fP
Undocumented (not useful for Lua scripts).
.TP
.B \fBset\-property\-reply\fP
Undocumented (not useful for Lua scripts).
.TP
.B \fBcommand\-reply\fP
Undocumented (not useful for Lua scripts).
.TP
.B \fBclient\-message\fP
Undocumented (used internally).
.TP
.B \fBvideo\-reconfig\fP
Happens on video output or filter reconfig.
.TP
.B \fBaudio\-reconfig\fP
Happens on audio output or filter reconfig.
.UNINDENT
.sp
The following events also happen, but are deprecated: \fBtracks\-changed\fP,
\fBtrack\-switched\fP, \fBpause\fP, \fBunpause\fP, \fBmetadata\-update\fP,
\fBchapter\-change\fP\&. Use \fBmp.observe_property()\fP instead.
.SS Extras
.sp
This documents experimental features, or features that are "too special" to
guarantee a stable interface.
.INDENT 0.0
.TP
.B \fBmp.add_hook(type, priority, fn)\fP
Add a hook callback for \fBtype\fP (a string identifying a certain kind of
hook). These hooks allow the player to call script functions and wait for
their result (normally, the Lua scripting interface is asynchronous from
the point of view of the player core). \fBpriority\fP is an arbitrary integer
that allows ordering among hooks of the same kind. Using the value 50 is
recommended as neutral default value. \fBfn\fP is the function that will be
called during execution of the hook.
.sp
See \fI\%Hooks\fP for currently existing hooks and what they do \- only the hook
list is interesting; handling hook execution is done by the Lua script
function automatically.
.UNINDENT
.SH JAVASCRIPT
.sp
JavaScript support in mpv is near identical to its Lua support. Use this section
as reference on differences and availability of APIs, but otherwise you should
refer to the Lua documentation for API details and general scripting in mpv.
.SS Example
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JavaScript code which leaves fullscreen mode when the player is paused:
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.nf
.ft C
function on_pause_change(name, value) {
    if (value == true)
        mp.set_property("fullscreen", "no");
}
mp.observe_property("pause", "bool", on_pause_change);
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.fi
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.SS Similarities with Lua
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mpv tries to load a script file as JavaScript if it has a \fB\&.js\fP extension, but
otherwise, the documented Lua options, script directories, loading, etc apply to
JavaScript files too.
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Script initialization and lifecycle is the same as with Lua, and most of the Lua
functions at the modules \fBmp\fP, \fBmp.utils\fP, \fBmp.msg\fP and \fBmp.options\fP are
available to JavaScript with identical APIs \- including running commands,
getting/setting properties, registering events/key\-bindings/hooks, etc.
.SS Differences from Lua
.sp
No need to load modules. \fBmp\fP, \fBmp.utils\fP,  \fBmp.msg\fP and \fBmp.options\fP
are preloaded, and you can use e.g. \fBvar cwd = mp.utils.getcwd();\fP without
prior setup.
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Errors are slightly different. Where the Lua APIs return \fBnil\fP for error,
the JavaScript ones return \fBundefined\fP\&. Where Lua returns \fBsomething, error\fP
JavaScript returns only \fBsomething\fP \- and makes \fBerror\fP available via
\fBmp.last_error()\fP\&. Note that only some of the functions have this additional
\fBerror\fP value \- typically the same ones which have it in Lua.
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Standard APIs are preferred. For instance \fBsetTimeout\fP and \fBJSON.stringify\fP
are available, but \fBmp.add_timeout\fP and \fBmp.utils.format_json\fP are not.
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No standard library. This means that interaction with anything outside of mpv is
limited to the available APIs, typically via \fBmp.utils\fP\&. However, some file
functions were added, and CommonJS \fBrequire\fP is available too \- where the
loaded modules have the same privileges as normal scripts.
.SS Language features \- ECMAScript 5
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The scripting backend which mpv currently uses is MuJS \- a compatible minimal
ES5 interpreter. As such, \fBString.substring\fP is implemented for instance,
while the common but non\-standard \fBString.substr\fP is not. Please consult the
MuJS pages on language features and platform support \- \fI\%http://mujs.com\fP .
.SS Unsupported Lua APIs and their JS alternatives
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\fBmp.add_timeout(seconds, fn)\fP  JS: \fBid = setTimeout(fn, ms)\fP
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\fBmp.add_periodic_timer(seconds, fn)\fP  JS: \fBid = setInterval(fn, ms)\fP
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\fButils.parse_json(str [, trail])\fP  JS: \fBJSON.parse(str)\fP
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\fButils.format_json(v)\fP  JS: \fBJSON.stringify(v)\fP
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\fButils.to_string(v)\fP  see \fBdump\fP below.
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\fBmp.suspend()\fP JS: none (deprecated).
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\fBmp.resume()\fP JS: none (deprecated).
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\fBmp.resume_all()\fP JS: none (deprecated).
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\fBmp.get_next_timeout()\fP see event loop below.
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\fBmp.dispatch_events([allow_wait])\fP see event loop below.
.SS Scripting APIs \- identical to Lua
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(LE) \- Last\-Error, indicates that \fBmp.last_error()\fP can be used after the
call to test for success (empty string) or failure (non empty reason string).
Where the Lua APIs use \fBnil\fP to indicate error, JS APIs use \fBundefined\fP\&.
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\fBmp.command(string)\fP (LE)
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\fBmp.commandv(arg1, arg2, ...)\fP (LE)
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\fBmp.command_native(table [,def])\fP (LE)
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\fBid = mp.command_native_async(table [,fn])\fP (LE) Notes: \fBid\fP is true\-thy on
success, \fBfn\fP is called always a\-sync, \fBerror\fP is empty string on success.
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\fBmp.abort_async_command(id)\fP
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\fBmp.get_property(name [,def])\fP (LE)
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\fBmp.get_property_osd(name [,def])\fP (LE)
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\fBmp.get_property_bool(name [,def])\fP (LE)
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\fBmp.get_property_number(name [,def])\fP (LE)
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\fBmp.get_property_native(name [,def])\fP (LE)
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\fBmp.set_property(name, value)\fP (LE)
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\fBmp.set_property_bool(name, value)\fP (LE)
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\fBmp.set_property_number(name, value)\fP (LE)
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\fBmp.set_property_native(name, value)\fP (LE)
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\fBmp.get_time()\fP
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\fBmp.add_key_binding(key, name|fn [,fn [,flags]])\fP
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\fBmp.add_forced_key_binding(...)\fP
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\fBmp.remove_key_binding(name)\fP
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\fBmp.register_event(name, fn)\fP
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\fBmp.unregister_event(fn)\fP
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\fBmp.observe_property(name, type, fn)\fP
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\fBmp.unobserve_property(fn)\fP
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\fBmp.get_opt(key)\fP
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\fBmp.get_script_name()\fP
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\fBmp.osd_message(text [,duration])\fP
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\fBmp.get_wakeup_pipe()\fP
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\fBmp.register_idle(fn)\fP
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\fBmp.unregister_idle(fn)\fP
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\fBmp.enable_messages(level)\fP
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\fBmp.register_script_message(name, fn)\fP
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\fBmp.unregister_script_message(name)\fP
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\fBmp.create_osd_overlay(format)\fP
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\fBmp.get_osd_size()\fP  (returned object has properties: width, height, aspect)
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\fBmp.msg.log(level, ...)\fP
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\fBmp.msg.fatal(...)\fP
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\fBmp.msg.error(...)\fP
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\fBmp.msg.warn(...)\fP
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\fBmp.msg.info(...)\fP
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\fBmp.msg.verbose(...)\fP
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\fBmp.msg.debug(...)\fP
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\fBmp.msg.trace(...)\fP
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\fBmp.utils.getcwd()\fP (LE)
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\fBmp.utils.readdir(path [, filter])\fP (LE)
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\fBmp.utils.file_info(path)\fP (LE)
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\fBmp.utils.split_path(path)\fP
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\fBmp.utils.join_path(p1, p2)\fP
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\fBmp.utils.subprocess(t)\fP
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\fBmp.utils.subprocess_detached(t)\fP
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\fBmp.utils.getpid()\fP (LE)
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\fBmp.add_hook(type, priority, fn)\fP
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\fBmp.options.read_options(obj [, identifier [, on_update]])\fP (types:
string/boolean/number)
.SS Additional utilities
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.TP
.B \fBmp.last_error()\fP
If used after an API call which updates last error, returns an empty string
if the API call succeeded, or a non\-empty error reason string otherwise.
.TP
.B \fBError.stack\fP (string)
When using \fBtry { ... } catch(e) { ... }\fP, then \fBe.stack\fP is the stack
trace of the error \- if it was created using the \fBError(...)\fP constructor.
.TP
.B \fBprint\fP (global)
A convenient alias to \fBmp.msg.info\fP\&.
.TP
.B \fBdump\fP (global)
Like \fBprint\fP but also expands objects and arrays recursively.
.TP
.B \fBmp.utils.getenv(name)\fP
Returns the value of the host environment variable \fBname\fP, or
\fBundefined\fP if the variable is not defined.
.TP
.B \fBmp.utils.get_user_path(path)\fP
Expands (mpv) meta paths like \fB~/x\fP, \fB~~/y\fP, \fB~~desktop/z\fP etc.
\fBread_file\fP, \fBwrite_file\fP and \fBrequire\fP already use this internaly.
.TP
.B \fBmp.utils.read_file(fname [,max])\fP
Returns the content of file \fBfname\fP as string. If \fBmax\fP is provided and
not negative, limit the read to \fBmax\fP bytes.
.TP
.B \fBmp.utils.write_file(fname, str)\fP
(Over)write file \fBfname\fP with text content \fBstr\fP\&. \fBfname\fP must be
prefixed with \fBfile://\fP as simple protection against accidental arguments
switch, e.g. \fBmp.utils.write_file("file://~/abc.txt", "hello world")\fP\&.
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Note: \fBread_file\fP and \fBwrite_file\fP throw on errors, allow text content only.
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.TP
.B \fBmp.get_time_ms()\fP
Same as \fBmp.get_time()\fP but in ms instead of seconds.
.TP
.B \fBmp.get_script_file()\fP
Returns the file name of the current script.
.TP
.B \fBexit()\fP (global)
Make the script exit at the end of the current event loop iteration.
Note: please remove added key bindings before calling \fBexit()\fP\&.
.TP
.B \fBmp.utils.compile_js(fname, content_str)\fP
Compiles the JS code \fBcontent_str\fP as file name \fBfname\fP (without loading
anything from the filesystem), and returns it as a function. Very similar
to a \fBFunction\fP constructor, but shows at stack traces as \fBfname\fP\&.
.TP
.B \fBmp.module_paths\fP
Global modules search paths array for the \fBrequire\fP function (see below).
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.SS Timers (global)
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The standard HTML/node.js timers are available:
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\fBid = setTimeout(fn [,duration [,arg1 [,arg2...]]])\fP
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\fBid = setTimeout(code_string [,duration])\fP
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\fBclearTimeout(id)\fP
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\fBid = setInterval(fn [,duration [,arg1 [,arg2...]]])\fP
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\fBid = setInterval(code_string [,duration])\fP
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\fBclearInterval(id)\fP
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\fBsetTimeout\fP and \fBsetInterval\fP return id, and later call \fBfn\fP (or execute
\fBcode_string\fP) after \fBduration\fP ms. Interval also repeat every \fBduration\fP\&.
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\fBduration\fP has a minimum and default value of 0, \fBcode_string\fP is
a plain string which is evaluated as JS code, and \fB[,arg1 [,arg2..]]\fP are used
as arguments (if provided) when calling back \fBfn\fP\&.
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The \fBclear...(id)\fP functions cancel timer \fBid\fP, and are irreversible.
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Note: timers always call back asynchronously, e.g. \fBsetTimeout(fn)\fP will never
call \fBfn\fP before returning. \fBfn\fP will be called either at the end of this
event loop iteration or at a later event loop iteration. This is true also for
intervals \- which also never call back twice at the same event loop iteration.
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Additionally, timers are processed after the event queue is empty, so it\(aqs valid
to use \fBsetTimeout(fn)\fP as a one\-time idle observer.
.SS CommonJS modules and \fBrequire(id)\fP
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CommonJS Modules are a standard system where scripts can export common functions
for use by other scripts. Specifically, a module is a script which adds
properties (functions, etc) to its pre\-existing \fBexports\fP object, which
another script can access with \fBrequire(module\-id)\fP\&. This runs the module and
returns its \fBexports\fP object. Further calls to \fBrequire\fP for the same module
will return its cached \fBexports\fP object without running the module again.
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Modules and \fBrequire\fP are supported, standard compliant, and generally similar
to node.js. However, most node.js modules won\(aqt run due to missing modules such
as \fBfs\fP, \fBprocess\fP, etc, but some node.js modules with minimal dependencies
do work. In general, this is for mpv modules and not a node.js replacement.
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A \fB\&.js\fP file extension is always added to \fBid\fP, e.g. \fBrequire("./foo")\fP
will load the file \fB\&./foo.js\fP and return its \fBexports\fP object.
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An id is relative (to the script which \fBrequire\fP\(aqd it) if it starts with
\fB\&./\fP or \fB\&../\fP\&. Otherwise, it\(aqs considered a "top\-level id" (CommonJS term).
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Top level id is evaluated as absolute filesystem path if possible, e.g. \fB/x/y\fP
or \fB~/x\fP\&. Otherwise, it\(aqs considered a global module id and searched at
\fBscripts/modules.js/\fP in mpv config dirs \- in normal config search order. E.g.
\fBrequire("x")\fP is searched as file \fBx.js\fP at those dirs, and id \fBfoo/x\fP is
searched as file \fBx.js\fP inside dir \fBfoo\fP at those dirs.
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Search paths for global module id\(aqs are at the array \fBmp.module_paths\fP, which
is searched in order. Initially it contains one item: \fB~~/scripts/modules.js\fP
such that it behaves as described above. Modifying it will affect future
\fBrequire\fP calls with global module id\(aqs which are not already loaded/cached.
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No \fBglobal\fP variable, but a module\(aqs \fBthis\fP at its top lexical scope is the
global object \- also in strict mode. If you have a module which needs \fBglobal\fP
as the global object, you could do \fBthis.global = this;\fP before \fBrequire\fP\&.
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Functions and variables declared at a module don\(aqt pollute the global object.
.SS The event loop
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The event loop poll/dispatch mpv events as long as the queue is not empty, then
processes the timers, then waits for the next event, and repeats this forever.
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You could put this code at your script to replace the built\-in event loop, and
also print every event which mpv sends to your script:
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function mp_event_loop() {
    var wait = 0;
    do {
        var e = mp.wait_event(wait);
        dump(e);  // there could be a lot of prints...
        if (e.event != "none") {
            mp.dispatch_event(e);
            wait = 0;
        } else {
            wait = mp.process_timers() / 1000;
            if (wait != 0) {
                mp.notify_idle_observers();
                wait = mp.peek_timers_wait() / 1000;
            }
        }
    } while (mp.keep_running);
}
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.fi
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\fBmp_event_loop\fP is a name which mpv tries to call after the script loads.
The internal implementation is similar to this (without \fBdump\fP though..).
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\fBe = mp.wait_event(wait)\fP returns when the next mpv event arrives, or after
\fBwait\fP seconds if positive and no mpv events arrived. \fBwait\fP value of 0
returns immediately (with \fBe.event == "none"\fP if the queue is empty).
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\fBmp.dispatch_event(e)\fP calls back the handlers registered for \fBe.event\fP,
if there are such (event handlers, property observers, script messages, etc).
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\fBmp.process_timers()\fP calls back the already\-added, non\-canceled due timers,
and returns the duration in ms till the next due timer (possibly 0), or \-1 if
there are no pending timers. Must not be called recursively.
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\fBmp.notify_idle_observers()\fP calls back the idle observers, which we do when
we\(aqre about to sleep (wait != 0), but the observers may add timers or take
non\-negligible duration to complete, so we re\-calculate \fBwait\fP afterwards.
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\fBmp.peek_timers_wait()\fP returns the same values as \fBmp.process_timers()\fP
but without doing anything. Invalid result if called from a timer callback.
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Note: \fBexit()\fP is also registered for the \fBshutdown\fP event, and its
implementation is a simple \fBmp.keep_running = false\fP\&.
.SH JSON IPC
.sp
mpv can be controlled by external programs using the JSON\-based IPC protocol.
It can be enabled by specifying the path to a unix socket or a named pipe using
the option \fB\-\-input\-ipc\-server\fP\&. Clients can connect to this socket and send
commands to the player or receive events from it.
.sp
\fBWARNING:\fP
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.INDENT 3.5
This is not intended to be a secure network protocol. It is explicitly
insecure: there is no authentication, no encryption, and the commands
themselves are insecure too. For example, the \fBrun\fP command is exposed,
which can run arbitrary system commands. The use\-case is controlling the
player locally. This is not different from the MPlayer slave protocol.
.UNINDENT
.UNINDENT
.SS Socat example
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You can use the \fBsocat\fP tool to send commands (and receive replies) from the
shell. Assuming mpv was started with:
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.nf
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mpv file.mkv \-\-input\-ipc\-server=/tmp/mpvsocket
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.fi
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Then you can control it using socat:
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> echo \(aq{ "command": ["get_property", "playback\-time"] }\(aq | socat \- /tmp/mpvsocket
{"data":190.482000,"error":"success"}
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.fi
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.sp
In this case, socat copies data between stdin/stdout and the mpv socket
connection.
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See the \fB\-\-idle\fP option how to make mpv start without exiting immediately or
playing a file.
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It\(aqs also possible to send input.conf style text\-only commands:
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> echo \(aqshow\-text ${playback\-time}\(aq | socat \- /tmp/mpvsocket
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.fi
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.sp
But you won\(aqt get a reply over the socket. (This particular command shows the
playback time on the player\(aqs OSD.)
.SS Command Prompt example
.sp
Unfortunately, it\(aqs not as easy to test the IPC protocol on Windows, since
Windows ports of socat (in Cygwin and MSYS2) don\(aqt understand named pipes. In
the absence of a simple tool to send and receive from bidirectional pipes, the
\fBecho\fP command can be used to send commands, but not receive replies from the
command prompt.
.sp
Assuming mpv was started with:
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.INDENT 3.5
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mpv file.mkv \-\-input\-ipc\-server=\e\e.\epipe\empvsocket
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.fi
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.sp
You can send commands from a command prompt:
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.INDENT 3.5
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.nf
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echo show\-text ${playback\-time} >\e\e.\epipe\empvsocket
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.fi
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.sp
To be able to simultaneously read and write from the IPC pipe, like on Linux,
it\(aqs necessary to write an external program that uses overlapped file I/O (or
some wrapper like .NET\(aqs NamedPipeClientStream.)
.SS Protocol
.sp
The protocol uses UTF\-8\-only JSON as defined by RFC\-8259. Unlike standard JSON,
"u" escape sequences are not allowed to construct surrogate pairs. To avoid
getting conflicts, encode all text characters including and above codepoint
U+0020 as UTF\-8. mpv might output broken UTF\-8 in corner cases (see "UTF\-8"
section below).
.sp
Clients can execute commands on the player by sending JSON messages of the
following form:
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.INDENT 3.5
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.nf
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{ "command": ["command_name", "param1", "param2", ...] }
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.fi
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.sp
where \fBcommand_name\fP is the name of the command to be executed, followed by a
list of parameters. Parameters must be formatted as native JSON values
(integers, strings, booleans, ...). Every message \fBmust\fP be terminated with
\fB\en\fP\&. Additionally, \fB\en\fP must not appear anywhere inside the message. In
practice this means that messages should be minified before being sent to mpv.
.sp
mpv will then send back a reply indicating whether the command was run
correctly, and an additional field holding the command\-specific return data (it
can also be null).
.INDENT 0.0
.INDENT 3.5
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.nf
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{ "error": "success", "data": null }
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.fi
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mpv will also send events to clients with JSON messages of the following form:
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.INDENT 3.5
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.nf
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{ "event": "event_name" }
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.fi
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.sp
where \fBevent_name\fP is the name of the event. Additional event\-specific fields
can also be present. See \fI\%List of events\fP for a list of all supported events.
.sp
Because events can occur at any time, it may be difficult at times to determine
which response goes with which command. Commands may optionally include a
\fBrequest_id\fP which, if provided in the command request, will be copied
verbatim into the response. mpv does not intrepret the \fBrequest_id\fP in any
way; it is solely for the use of the requester. The only requirement is that
the \fBrequest_id\fP field must be an integer (a number without fractional parts
in the range \fB\-2^63..2^63\-1\fP). Using other types is deprecated and will
currently show a warning. In the future, this will raise an error.
.sp
For example, this request:
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.INDENT 3.5
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{ "command": ["get_property", "time\-pos"], "request_id": 100 }
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.fi
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.sp
Would generate this response:
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.INDENT 3.5
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.nf
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{ "error": "success", "data": 1.468135, "request_id": 100 }
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.fi
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.UNINDENT
.sp
If you don\(aqt specify a \fBrequest_id\fP, command replies will set it to 0.
.sp
Commands may run asynchronously in the future, instead of blocking the  socket
until a reply is sent.
.sp
All commands, replies, and events are separated from each other with a line
break character (\fB\en\fP).
.sp
If the first character (after skipping whitespace) is not \fB{\fP, the command
will be interpreted as non\-JSON text command, as they are used in input.conf
(or \fBmpv_command_string()\fP in the client API). Additionally, lines starting
with \fB#\fP and empty lines are ignored.
.sp
Currently, embedded 0 bytes terminate the current line, but you should not
rely on this.
.SS Commands
.sp
In addition to the commands described in \fI\%List of Input Commands\fP, a few
extra commands can also be used as part of the protocol:
.INDENT 0.0
.TP
.B \fBclient_name\fP
Return the name of the client as string. This is the string \fBipc\-N\fP with
N being an integer number.
.TP
.B \fBget_time_us\fP
Return the current mpv internal time in microseconds as a number. This is
basically the system time, with an arbitrary offset.
.TP
.B \fBget_property\fP
Return the value of the given property. The value will be sent in the data
field of the replay message.
.sp
Example:
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.INDENT 3.5
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.nf
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{ "command": ["get_property", "volume"] }
{ "data": 50.0, "error": "success" }
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.fi
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.TP
.B \fBget_property_string\fP
Like \fBget_property\fP, but the resulting data will always be a string.
.sp
Example:
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.INDENT 3.5
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.nf
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{ "command": ["get_property_string", "volume"] }
{ "data": "50.000000", "error": "success" }
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.fi
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.TP
.B \fBset_property\fP
Set the given property to the given value. See \fI\%Properties\fP for more
information about properties.
.sp
Example:
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.INDENT 3.5
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.nf
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{ "command": ["set_property", "pause", true] }
{ "error": "success" }
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.fi
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.TP
.B \fBset_property_string\fP
Alias for \fBset_property\fP\&. Both commands accept native values and strings.
.TP
.B \fBobserve_property\fP
Watch a property for changes. If the given property is changed, then an
event of type \fBproperty\-change\fP will be generated
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{ "command": ["observe_property", 1, "volume"] }
{ "error": "success" }
{ "event": "property\-change", "id": 1, "data": 52.0, "name": "volume" }
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fBWARNING:\fP
.INDENT 7.0
.INDENT 3.5
If the connection is closed, the IPC client is destroyed internally,
and the observed properties are unregistered. This happens for example
when sending commands to a socket with separate \fBsocat\fP invocations.
This can make it seem like property observation does not work. You must
keep the IPC connection open to make it work.
.UNINDENT
.UNINDENT
.TP
.B \fBobserve_property_string\fP
Like \fBobserve_property\fP, but the resulting data will always be a string.
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{ "command": ["observe_property_string", 1, "volume"] }
{ "error": "success" }
{ "event": "property\-change", "id": 1, "data": "52.000000", "name": "volume" }
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBunobserve_property\fP
Undo \fBobserve_property\fP or \fBobserve_property_string\fP\&. This requires the
numeric id passed to the observed command as argument.
.sp
Example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{ "command": ["unobserve_property", 1] }
{ "error": "success" }
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBrequest_log_messages\fP
Enable output of mpv log messages. They will be received as events. The
parameter to this command is the log\-level (see \fBmpv_request_log_messages\fP
C API function).
.sp
Log message output is meant for humans only (mostly for debugging).
Attempting to retrieve information by parsing these messages will just
lead to breakages with future mpv releases. Instead, make a feature request,
and ask for a proper event that returns the information you need.
.TP
.B \fBenable_event\fP, \fBdisable_event\fP
Enables or disables the named event. Mirrors the \fBmpv_request_event\fP C
API function. If the string \fBall\fP is used instead of an event name, all
events are enabled or disabled.
.sp
By default, most events are enabled, and there is not much use for this
command.
.TP
.B \fBget_version\fP
Returns the client API version the C API of the remote mpv instance
provides.
.sp
See also: \fBDOCS/client\-api\-changes.rst\fP\&.
.UNINDENT
.SS UTF\-8
.sp
Normally, all strings are in UTF\-8. Sometimes it can happen that strings are
in some broken encoding (often happens with file tags and such, and filenames
on many Unixes are not required to be in UTF\-8 either). This means that mpv
sometimes sends invalid JSON. If that is a problem for the client application\(aqs
parser, it should filter the raw data for invalid UTF\-8 sequences and perform
the desired replacement, before feeding the data to its JSON parser.
.sp
mpv will not attempt to construct invalid UTF\-8 with broken "u" escape
sequences. This includes surrogate pairs.
.SS JSON extensions
.sp
The following non\-standard extensions are supported:
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.IP \(bu 2
a list or object item can have a trailing ","
.IP \(bu 2
object syntax accepts "=" in addition of ":"
.IP \(bu 2
object keys can be unquoted, if they start with a character in "A\-Za\-z_"
and contain only characters in "A\-Za\-z0\-9_"
.IP \(bu 2
byte escapes with "xAB" are allowed (with AB being a 2 digit hex number)
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
{ objkey = "value\ex0A" }
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Is equivalent to:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
{ "objkey": "value\en" }
.ft P
.fi
.UNINDENT
.UNINDENT
.SH CHANGELOG
.sp
There is no real changelog, but you can look at the following things:
.INDENT 0.0
.IP \(bu 2
The release changelog, which should contain most user\-visible changes,
including new features and bug fixes:
.sp
\fI\%https://github.com/mpv\-player/mpv/releases\fP
.IP \(bu 2
The git log, which is the "real" changelog
.IP \(bu 2
The files \fBclient\-api\-changes.rst\fP and \fBinterface\-changes.rst\fP in the
\fBDOCS\fP sub directoryon the git repository, which document API and user
interface changes (the latter usually documents breaking changes only, rather
than additions).
.IP \(bu 2
The file \fBmplayer\-changes.rst\fP in the \fBDOCS\fP sub directory on the git
repository, which used to be in place of this section. It documents some
changes that happened since mplayer2 forked off MPlayer. (Not updated
anymore.)
.UNINDENT
.SH EMBEDDING INTO OTHER PROGRAMS (LIBMPV)
.sp
mpv can be embedded into other programs as video/audio playback backend. The
recommended way to do so is using libmpv. See \fBlibmpv/client.h\fP in the mpv
source code repository. This provides a C API. Bindings for other languages
might be available (see wiki).
.sp
Since libmpv merely allows access to underlying mechanisms that can control
mpv, further documentation is spread over a few places:
.INDENT 0.0
.IP \(bu 2
\fI\%https://github.com/mpv\-player/mpv/blob/master/libmpv/client.h\fP
.IP \(bu 2
\fI\%http://mpv.io/manual/master/#options\fP
.IP \(bu 2
\fI\%http://mpv.io/manual/master/#list\-of\-input\-commands\fP
.IP \(bu 2
\fI\%http://mpv.io/manual/master/#properties\fP
.IP \(bu 2
\fI\%https://github.com/mpv\-player/mpv\-examples/tree/master/libmpv\fP
.UNINDENT
.SH C PLUGINS
.sp
You can write C plugins for mpv. These use the libmpv API, although they do not
use the libmpv library itself.
.sp
Currently, they must be explicitly enabled at build time with
\fB\-\-enable\-cplugins\fP\&. They are available on Linux/BSD platforms only.
.SS C plugins location
.sp
C plugins are put into the mpv scripts directory in its config directory
(see the \fI\%FILES\fP section for details). They must have a \fB\&.so\fP file extension.
They can also be explicitly loaded with the \fB\-\-script\fP option.
.SS API
.sp
A C plugin must export the following function:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
int mpv_open_cplugin(mpv_handle *handle)
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The plugin function will be called on loading time. This function does not
return as long as your plugin is loaded (it runs in its own thread). The
\fBhandle\fP will be deallocated as soon as the plugin function returns.
.sp
The return value is interpreted as error status. A value of \fB0\fP is
interpreted as success, while \fB\-1\fP signals an error. In the latter case,
the player prints an uninformative error message that loading failed.
.sp
Return values other than \fB0\fP and \fB\-1\fP are reserved, and trigger undefined
behavior.
.sp
Within the plugin function, you can call libmpv API functions. The \fBhandle\fP
is created by \fBmpv_create_client()\fP (or actually an internal equivalent),
and belongs to you. You can call \fBmpv_wait_event()\fP to wait for things
happening, and so on.
.sp
Note that the player might block until your plugin calls \fBmpv_wait_event()\fP
for the first time. This gives you a chance to install initial hooks etc.
before playback begins.
.sp
The details are quite similar to Lua scripts.
.SS Linkage to libmpv
.sp
The current implementation requires that your plugins are \fBnot\fP linked against
libmpv. What your plugins uses are not symbols from a libmpv binary, but
symbols from the mpv host binary.
.SS Examples
.sp
See:
.INDENT 0.0
.IP \(bu 2
\fI\%https://github.com/mpv\-player/mpv\-examples/tree/master/cplugins\fP
.UNINDENT
.SH ENVIRONMENT VARIABLES
.sp
There are a number of environment variables that can be used to control the
behavior of mpv.
.INDENT 0.0
.TP
.B \fBHOME\fP, \fBXDG_CONFIG_HOME\fP
Used to determine mpv config directory. If \fBXDG_CONFIG_HOME\fP is not set,
\fB$HOME/.config/mpv\fP is used.
.sp
\fB$HOME/.mpv\fP is always added to the list of config search paths with a
lower priority.
.TP
.B \fBXDG_CONFIG_DIRS\fP
If set, XDG\-style system configuration directories are used. Otherwise,
the UNIX convention (\fBPREFIX/etc/mpv/\fP) is used.
.TP
.B \fBMPV_HOME\fP
Directory where mpv looks for user settings. Overrides \fBHOME\fP, and mpv
will try to load the config file as \fB$MPV_HOME/mpv.conf\fP\&.
.TP
.B \fBMPV_VERBOSE\fP (see also \fB\-v\fP and \fB\-\-msg\-level\fP)
Set the initial verbosity level across all message modules (default: 0).
This is an integer, and the resulting verbosity corresponds to the number
of \fB\-\-v\fP options passed to the command line.
.TP
.B \fBMPV_LEAK_REPORT\fP
If set to \fB1\fP, enable internal talloc leak reporting. If set to another
value, disable leak reporting. If unset, use the default, which normally is
\fB0\fP\&. If mpv was built with \fB\-\-enable\-ta\-leak\-report\fP, the default is
\fB1\fP\&. If leak reporting was disabled at compile time (\fBNDEBUG\fP in
custom \fBCFLAGS\fP), this environment variable is ignored.
.TP
.B \fBLADSPA_PATH\fP
Specifies the search path for LADSPA plugins. If it is unset, fully
qualified path names must be used.
.TP
.B \fBDISPLAY\fP
Standard X11 display name to use.
.TP
.B FFmpeg/Libav:
This library accesses various environment variables. However, they are not
centrally documented, and documenting them is not our job. Therefore, this
list is incomplete.
.sp
Notable environment variables:
.INDENT 7.0
.TP
.B \fBhttp_proxy\fP
URL to proxy for \fBhttp://\fP and \fBhttps://\fP URLs.
.TP
.B \fBno_proxy\fP
List of domain patterns for which no proxy should be used.
List entries are separated by \fB,\fP\&. Patterns can include \fB*\fP\&.
.UNINDENT
.TP
.B libdvdcss:
.INDENT 7.0
.TP
.B \fBDVDCSS_CACHE\fP
Specify a directory in which to store title key values. This will
speed up descrambling of DVDs which are in the cache. The
\fBDVDCSS_CACHE\fP directory is created if it does not exist, and a
subdirectory is created named after the DVD\(aqs title or manufacturing
date. If \fBDVDCSS_CACHE\fP is not set or is empty, libdvdcss will use
the default value which is \fB${HOME}/.dvdcss/\fP under Unix and
the roaming application data directory (\fB%APPDATA%\fP) under
Windows. The special value "off" disables caching.
.TP
.B \fBDVDCSS_METHOD\fP
Sets the authentication and decryption method that libdvdcss will use
to read scrambled discs. Can be one of \fBtitle\fP, \fBkey\fP or \fBdisc\fP\&.
.INDENT 7.0
.TP
.B key
is the default method. libdvdcss will use a set of calculated
player keys to try to get the disc key. This can fail if the drive
does not recognize any of the player keys.
.TP
.B disc
is a fallback method when key has failed. Instead of using player
keys, libdvdcss will crack the disc key using a brute force
algorithm. This process is CPU intensive and requires 64 MB of
memory to store temporary data.
.TP
.B title
is the fallback when all other methods have failed. It does not
rely on a key exchange with the DVD drive, but rather uses a crypto
attack to guess the title key. On rare cases this may fail because
there is not enough encrypted data on the disc to perform a
statistical attack, but on the other hand it is the only way to
decrypt a DVD stored on a hard disc, or a DVD with the wrong region
on an RPC2 drive.
.UNINDENT
.TP
.B \fBDVDCSS_RAW_DEVICE\fP
Specify the raw device to use. Exact usage will depend on your
operating system, the Linux utility to set up raw devices is raw(8)
for instance. Please note that on most operating systems, using a raw
device requires highly aligned buffers: Linux requires a 2048 bytes
alignment (which is the size of a DVD sector).
.TP
.B \fBDVDCSS_VERBOSE\fP
Sets the libdvdcss verbosity level.
.INDENT 7.0
.TP
.B 0
Outputs no messages at all.
.TP
.B 1
Outputs error messages to stderr.
.TP
.B 2
Outputs error messages and debug messages to stderr.
.UNINDENT
.TP
.B \fBDVDREAD_NOKEYS\fP
Skip retrieving all keys on startup. Currently disabled.
.TP
.B \fBHOME\fP
FIXME: Document this.
.UNINDENT
.UNINDENT
.SH EXIT CODES
.sp
Normally \fBmpv\fP returns 0 as exit code after finishing playback successfully.
If errors happen, the following exit codes can be returned:
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.TP
.B 1
Error initializing mpv. This is also returned if unknown options are
passed to mpv.
.TP
.B 2
The file passed to mpv couldn\(aqt be played. This is somewhat fuzzy:
currently, playback of a file is considered to be successful if
initialization was mostly successful, even if playback fails
immediately after initialization.
.TP
.B 3
There were some files that could be played, and some files which
couldn\(aqt (using the definition of success from above).
.TP
.B 4
Quit due to a signal, Ctrl+c in a VO window (by default), or from the
default quit key bindings in encoding mode.
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Note that quitting the player manually will always lead to exit code 0,
overriding the exit code that would be returned normally. Also, the \fBquit\fP
input command can take an exit code: in this case, that exit code is returned.
.SH FILES
.sp
For Windows\-specifics, see \fI\%FILES ON WINDOWS\fP section.
.INDENT 0.0
.TP
.B \fB/usr/local/etc/mpv/mpv.conf\fP
mpv system\-wide settings (depends on \fB\-\-prefix\fP passed to configure \- mpv
in default configuration will use \fB/usr/local/etc/mpv/\fP as config
directory, while most Linux distributions will set it to \fB/etc/mpv/\fP).
.TP
.B \fB~/.config/mpv/mpv.conf\fP
mpv user settings (see \fI\%CONFIGURATION FILES\fP section)
.TP
.B \fB~/.config/mpv/input.conf\fP
key bindings (see \fI\%INPUT.CONF\fP section)
.TP
.B \fB~/.config/mpv/fonts.conf\fP
Fontconfig fonts.conf that is customized for mpv. You should include system
fonts.conf in this file or mpv would not know about fonts that you already
have in the system.
.sp
Only available when libass is built with fontconfig.
.TP
.B \fB~/.config/mpv/subfont.ttf\fP
fallback subtitle font
.TP
.B \fB~/.config/mpv/fonts/\fP
Font files in this directory are used by mpv/libass for subtitles. Useful
if you do not want to install fonts to your system. Note that files in this
directory are loaded into memory before being used by mpv. If you have a
lot of fonts, consider using fonts.conf (see above) to include additional
fonts, which is more memory\-efficient.
.TP
.B \fB~/.config/mpv/scripts/\fP
All files in this directory are loaded as if they were passed to the
\fB\-\-script\fP option. They are loaded in alphabetical order. Directory entries
other than files are ignored. Files with unknown extension lead to an
initialization error. Files with \fB\&.disable\fP extension are ignored. The
\fB\-\-load\-scripts=no\fP option disables loading these files.
.TP
.B \fB~/.config/mpv/watch_later/\fP
Contains temporary config files needed for resuming playback of files with
the watch later feature. See for example the \fBQ\fP key binding, or the
\fBquit\-watch\-later\fP input command.
.sp
Each file is a small config file which is loaded if the corresponding media
file is loaded. It contains the playback position and some (not necessarily
all) settings that were changed during playback. The filenames are hashed
from the full paths of the media files. It\(aqs in general not possible to
extract the media filename from this hash. However, you can set the
\fB\-\-write\-filename\-in\-watch\-later\-config\fP option, and the player will
add the media filename to the contents of the resume config file.
.TP
.B \fB~/.config/mpv/script\-opts/osc.conf\fP
This is loaded by the OSC script. See the \fI\%ON SCREEN CONTROLLER\fP docs
for details.
.sp
Other files in this directory are specific to the corresponding scripts
as well, and the mpv core doesn\(aqt touch them.
.UNINDENT
.sp
Note that the environment variables \fB$XDG_CONFIG_HOME\fP and \fB$MPV_HOME\fP can
override the standard directory \fB~/.config/mpv/\fP\&.
.sp
Also, the old config location at \fB~/.mpv/\fP is still read, and if the XDG
variant does not exist, will still be preferred.
.SH FILES ON WINDOWS
.sp
On win32 (if compiled with MinGW, but not Cygwin), the default config file
locations are different. They are generally located under \fB%APPDATA%/mpv/\fP\&.
For example, the path to mpv.conf is \fB%APPDATA%/mpv/mpv.conf\fP, which maps to
a system and user\-specific path, for example
.INDENT 0.0
.INDENT 3.5
\fBC:\eusers\eUSERNAME\eAppData\eRoaming\empv\empv.conf\fP
.UNINDENT
.UNINDENT
.sp
You can find the exact path by running \fBecho %APPDATA%\empv\empv.conf\fP in cmd.exe.
.sp
Other config files (such as \fBinput.conf\fP) are in the same directory. See the
\fI\%FILES\fP section above.
.sp
The environment variable \fB$MPV_HOME\fP completely overrides these, like on
UNIX.
.sp
If a directory named \fBportable_config\fP next to the mpv.exe exists, all
config will be loaded from this directory only. Watch later config files are
written to this directory as well. (This exists on Windows only and is redundant
with \fB$MPV_HOME\fP\&. However, since Windows is very scripting unfriendly, a
wrapper script just setting \fB$MPV_HOME\fP, like you could do it on other
systems, won\(aqt work. \fBportable_config\fP is provided for convenience to get
around this restriction.)
.sp
Config files located in the same directory as \fBmpv.exe\fP are loaded with
lower priority. Some config files are loaded only once, which means that
e.g. of 2 \fBinput.conf\fP files located in two config directories, only the
one from the directory with higher priority will be loaded.
.sp
A third config directory with the lowest priority is the directory named \fBmpv\fP
in the same directory as \fBmpv.exe\fP\&. This used to be the directory with the
highest priority, but is now discouraged to use and might be removed in the
future.
.sp
Note that mpv likes to mix \fB/\fP and \fB\e\fP path separators for simplicity.
kernel32.dll accepts this, but cmd.exe does not.
.SH COPYRIGHT
GPLv2+
.\" Generated by docutils manpage writer.
.