[FFmpeg-trac] #2245(undetermined:closed): Speed difference when using -ss on similar MKVs when extracting frame image
FFmpeg
trac at avcodec.org
Thu Feb 7 12:29:27 CET 2013
#2245: Speed difference when using -ss on similar MKVs when extracting frame image
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Reporter: eelco | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: git-master | undetermined
Keywords: h264 mkv | Resolution: invalid
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Changes (by cehoyos):
* keywords: => h264 mkv
* status: new => closed
* resolution: => invalid
Comment:
The "slow" sample has one keyframe (at 0:00) before your desired seeking
end-point, the "fast" sample has eleven, one of them less than half a
second before your seeking destination. In both cases, frames have to be
decoded to be able to decode the frame that you want to seek to, in one
case ~10, in the other ~250.
I don't think this can be "fixed".
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2245#comment:2>
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