| Message ID | 20240310015649.3233692-1-marth64@proxyid.net |
|---|---|
| State | Accepted |
| Commit | 2c82ec9b4a9def6ae7d5b21e6cac0b14444300c4 |
| Headers | show |
| Series | [FFmpeg-devel] doc/bitstream_filters: add filter_units practical examples for removing closed captions | expand |
| Context | Check | Description |
|---|---|---|
| yinshiyou/make_loongarch64 | success | Make finished |
| yinshiyou/make_fate_loongarch64 | success | Make fate finished |
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
Thanks, Stefano, I agree it’s not ideal with just having magic numbers. If I think of a creative solution I'll let you know. Appreciate your time, On Sun, Mar 10, 2024 at 09:56 Stefano Sabatini <stefasab@gmail.com> wrote: > On date Saturday 2024-03-09 19:56:49 -0600, Marth64 wrote: > > Following up on this from December 2023. I simplified the content and > > hopefully addressed the feedback. > > > > Signed-off-by: Marth64 <marth64@proxyid.net> > > --- > > doc/bitstream_filters.texi | 15 +++++++++++++++ > > 1 file changed, 15 insertions(+) > > > > diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi > > index e06de1a73a..61539d2473 100644 > > --- a/doc/bitstream_filters.texi > > +++ b/doc/bitstream_filters.texi > > @@ -213,6 +213,21 @@ 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 > > > > +To remove all user data from a MPEG-2 stream, including Closed Captions: > > +@example > > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=178' OUTPUT > > +@end example > > + > > +To remove all SEI from a H264 stream, including Closed Captions: > > +@example > > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=6' OUTPUT > > +@end example > > + > > +To remove all prefix and suffix SEI from a HEVC stream, including > Closed Captions and dynamic HDR: > > +@example > > +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=39|40' > OUTPUT > > +@end example > > + > > Not against, but I'm not super convinced this is super useful as it > does not really explain what these values come from. Probably it > would be more useful a table, or even better make the parser somehow > expose the supported types with the meaning (this would enable having > e.g. a symbolic type "cc" abstracting the containter format). > > OTOH I agree thius would provide some practical examples, therefore > I'll apply while we have no smarter way to expose the logic in a more > effective way. > > Thanks. >
diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi index e06de1a73a..61539d2473 100644 --- a/doc/bitstream_filters.texi +++ b/doc/bitstream_filters.texi @@ -213,6 +213,21 @@ 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 +To remove all user data from a MPEG-2 stream, including Closed Captions: +@example +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=178' OUTPUT +@end example + +To remove all SEI from a H264 stream, including Closed Captions: +@example +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=6' OUTPUT +@end example + +To remove all prefix and suffix SEI from a HEVC stream, including Closed Captions and dynamic HDR: +@example +ffmpeg -i INPUT -c:v copy -bsf:v 'filter_units=remove_types=39|40' OUTPUT +@end example + @section hapqa_extract Extract Rgb or Alpha part of an HAPQA file, without recompression, in order to create an HAPQ or an HAPAlphaOnly file.
Following up on this from December 2023. I simplified the content and hopefully addressed the feedback. Signed-off-by: Marth64 <marth64@proxyid.net> --- doc/bitstream_filters.texi | 15 +++++++++++++++ 1 file changed, 15 insertions(+)