[FFmpeg-devel] [PATCH 3/3] doc/ffmpeg: expand -bsf documentation

Anton Khirnov anton at khirnov.net
Tue Sep 19 21:15:07 EEST 2023


Explain how to pass options to filters.
---
 doc/ffmpeg.texi | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index d2864ff37e..cf47eb68d1 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -1893,9 +1893,18 @@ ffmpeg -i inurl -streamid 0:33 -streamid 1:36 out.ts
 @end example
 
 @item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream})
-Set bitstream filters for matching streams. @var{bitstream_filters} is
-a comma-separated list of bitstream filters. Use the @code{-bsfs} option
-to get the list of bitstream filters.
+Apply bitstream filters to matching streams.
+
+ at var{bitstream_filters} is a comma-separated list of bitstream filter
+specifications that will be applied to coded packets in the order they are
+written in. Each bitstream filter specification is of the form
+ at example
+ at var{filter}[=@var{optname0}=@var{optval0}:@var{optname1}=@var{optval1}:...]
+ at 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
 ffmpeg -i h264.mp4 -c:v copy -bsf:v h264_mp4toannexb -an out.h264
 @end example
-- 
2.40.1



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