[FFmpeg-trac] #3827(ffmpeg:new): Provide an option to quickly seek by a number of frames
FFmpeg
trac at avcodec.org
Mon Aug 4 17:01:54 CEST 2014
#3827: Provide an option to quickly seek by a number of frames
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Reporter: 11rcombs | Owner:
Type: enhancement | Status: new
Priority: wish | Component: ffmpeg
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by ubitux):
{{{avformat_seek_file()}}} has an almost unused flag called
{{{AVSEEK_FLAG_FRAME}}} that could be used for this purpose if implemented
properly. Subtitles use that (see {{{ff_subtitles_queue_seek()}}}) because
they actually have a complete index. Assuming we do an index-pass, that
might be realizable with some demuxers supporting the load of that index.
Note that your proposed method would work only if 1 packet = 1 video
frame, which AFAIK is not always true.
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Ticket URL: <https://trac.ffmpeg.org/ticket/3827#comment:1>
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