[FFmpeg-trac] #7963(ffmpeg:closed): Concat demuxer adds time to video duration
FFmpeg
trac at avcodec.org
Sat Jul 13 16:50:23 EEST 2019
#7963: Concat demuxer adds time to video duration
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Reporter: bgx90 | Owner:
Type: defect | Status: closed
Priority: normal | Component: ffmpeg
Version: 4.1 | Resolution: invalid
Keywords: concat | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by mkver):
* keywords: concat demuxer protocol concatenate duration mkv => concat
* status: new => closed
* resolution: => invalid
Comment:
1. For lots of transport streams (e.g. those originating from a TV
broadcast) it is perfectly normal for there not to exist any point where
you can split the files cleanly on keyframes (because when you split
everything before the start of a keyframe for PID x, you cut in the middle
of a packet of PID y; not to mention the PMT/PAT etc.). So the only
splitting of a transport stream I'd call "bad" is when you split right
through a transport stream packet.
2. The concat protocol really does just what cat does (ok, it also
provides seekability, but that's it).
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Ticket URL: <https://trac.ffmpeg.org/ticket/7963#comment:2>
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