1 files changed, 45 insertions, 0 deletions
diff --git a/pkg/ffmpeg/list.lua b/pkg/ffmpeg/list.lua
new file mode 100644
index 00000000..66cfbcda
--- /dev/null
+++ b/pkg/ffmpeg/list.lua
@@ -0,0 +1,45 @@
+local optionshdr = arg[1]
+local type = arg[2]
+local var = arg[3]
+
+local options = {}
+for line in io.lines(optionshdr) do
+	local cfg, val = line:match('^#define CONFIG_(%g+) (%g+)$')
+	if cfg then
+		options[cfg] = val == '1'
+	end
+end
+
+print('static const '..type..' *const '..var..'[] = {')
+for line in io.lines() do
+	local name = line:match('^extern .*'..type..' +ff_(%g+);$')
+	if name then
+		local cfg
+		if var == 'filter_list' then
+			local i = name:find('_', 1, true)
+			if i then
+				cfg = name:sub(i + 1)..'_filter'
+			end
+		elseif var == 'outdev_list' then
+			if name:sub(-6) == '_muxer' then
+				cfg = name:sub(1, -7)..'_outdev'
+			end
+		elseif var == 'indev_list' then
+			if name:sub(-8) == '_demuxer' then
+				cfg = name:sub(1, -9)..'_indev'
+			end
+		else
+			cfg = name
+		end
+		if cfg and options[cfg:upper()] then
+			print('&ff_'..name..',')
+		end
+	end
+end
+if var == 'filter_list' then
+	print('&ff_asrc_abuffer,')
+	print('&ff_vsrc_buffer,')
+	print('&ff_asink_abuffer,')
+	print('&ff_vsink_buffer,')
+end
+print('NULL};')