On date Saturday 2023-12-09 19:35:50 -0600, Marth64 wrote: > --- > doc/bitstream_filters.texi | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi > index c63c20370f..d2ad6e78ff 100644 > --- a/doc/bitstream_filters.texi > +++ b/doc/bitstream_filters.texi > @@ -213,6 +213,24 @@ To remove all AUDs, SEI and filler from an H.265 stream: > ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=35|38-40' OUTPUT > @end example > > +SEI messages are commonly used to contain Closed Captions as well as other > metadata such as dynamic HDR. > +This filter can be used to remove the SEI messages if desired. > + > +To remove SEI messages (including CC) from a MPEG-2 stream: > +@example > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=178' OUTPUT > +@end example > + > +To remove SEI messages (including CC) from a H264 stream: > +@example > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=6' OUTPUT > +@end example > + > +To remove SEI messages (including CC and dynamic HDR) from a HEVC stream: > +@example > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=39' OUTPUT > +@end example
Shall be good, but probably we can still do a bit better, by making explicit the common pattern. Something as: ... SEI messages are commonly used to contain Closed Captions as well as other metadata such as dynamic HDR. This filter can be used to remove the SEI messages, including CC, given the bitstream SEI unit type (which changes depending on the video stream). To remove SEI messages (including CC) from a MPEG-2 stream: ... _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
