#11462: Cannot embed .scc file into .mp4 using -c:s copy
-------------------------------------+-------------------------------------
Reporter: Zach | Owner: (none)
Type: enhancement | Status: new
Priority: important | Component:
| undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by softworkz):
Replying to [comment:29 softworkz]:
> This discussion made me wonder about whether it might be feasible to
have decoders produce AVFrames where the side data is parsed out but the
video data remains undecoded. This might also help for certain ffprobe
scenarios (Marth64: you know what I'm up to.. :-)
I realize this needs explanation:
Currently ffmpeg already has a way for encoding CC data into video streams
during encoding, and many encoders (even hardware video encoders like QSV)
support this.
This works simply by attaching the CC data as side data in AVFrames.
That's the mechanism which allows preservation of CC data when transcoding
video for example, and that's also how it will work with subtitle
filtering:
There will be a mergecc filter (a splitcc filter already exists) which
encodes text subs as CC 608/708 and attaches it as side data to the video
frames.
If it would be possible to work with video frames which have non-decoded
video data, then the filtering could also be used without re-encoding the
video.
(that's why I wouldn't think it makes sense to create separate topics)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11462#comment:30>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
