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Linshizhi
ffmpeg.wasm-core
Commits
cba16793
Commit
cba16793
authored
May 29, 2018
by
Gyan Doshi
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doc/ffmpeg: update disposition values
Thumbnail example added. Avoid transcoding in older examples.
parent
5717cd80
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doc/ffmpeg.texi
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cba16793
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@@ -375,22 +375,31 @@ The following dispositions are recognized:
@item hearing
_
impaired
@item visual
_
impaired
@item clean
_
effects
@item attached
_
pic
@item captions
@item descriptions
@item dependent
@item metadata
@end table
For example, to make the second audio stream the default stream:
@example
ffmpeg -i in.mkv -disposition:a:1 default out.mkv
ffmpeg -i in.mkv -
c copy -
disposition:a:1 default out.mkv
@end example
To make the second subtitle stream the default stream and remove the default
disposition from the first subtitle stream:
@example
ffmpeg -i
INPUT -disposition:s:0 0 -disposition:s:1 default OUTPUT
ffmpeg -i
in.mkv -c copy -disposition:s:0 0 -disposition:s:1 default out.mkv
@end example
To add an embedded cover/thumbnail:
@example
ffmpeg -i in.mp4 -i IMAGE -map 0 -map 1 -c copy -c:v:1 png -disposition:v:1 attached
_
pic out.mp4
@end example
Not all muxers support embedded thumbnails, and those who do, only support a few formats, like JPEG or PNG.
@item -program [title=@var
{
title
}
:][program
_
num=@var
{
program
_
num
}
:]st=@var
{
stream
}
[:st=@var
{
stream
}
...] (@emph
{
output
}
)
Creates a program with the specified @var
{
title
}
, @var
{
program
_
num
}
and adds the specified
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