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doc/ffmpeg: expand -bsf documentation

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Explain how to pass options to filters.
This commit is contained in:
Anton Khirnov
2023-04-08 12:11:41 +02:00
parent a8d9d6b08d
commit 436b972fc8
1 changed files with 13 additions and 3 deletions
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doc/ffmpeg.texi
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@@ -1888,9 +1888,19 @@ ffmpeg -i inurl -streamid 0:33 -streamid 1:36 out.ts
@end example @end example
@item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream}) @item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream})
Set bitstream filters for matching streams. @var{bitstream_filters} is Apply bitstream filters to matching streams.
a comma-separated list of bitstream filters. Use the @code{-bsfs} option
to get the list of bitstream filters. @var{bitstream_filters} is a comma-separated list of bitstream filter
specifications. The specified bitstream filters are applied to coded packets in
the order they are written in. Each bitstream filter specification is of the
form
@example
@var{filter}[=@var{optname0}=@var{optval0}:@var{optname1}=@var{optval1}:...]
@end example
Any of the ',=:' characters that are to be a part of an option value need to be
escaped with a backslash.
Use the @code{-bsfs} option to get the list of bitstream filters.
@example @example
ffmpeg -i h264.mp4 -c:v copy -bsf:v h264_mp4toannexb -an out.h264 ffmpeg -i h264.mp4 -c:v copy -bsf:v h264_mp4toannexb -an out.h264
@end example @end example