[FFmpeg-trac] #7895(avformat:new): Incorrect video framerate due to no timestamp interpolation for H.264/HEVC
FFmpeg
trac at avcodec.org
Sun May 12 17:01:27 EEST 2019
#7895: Incorrect video framerate due to no timestamp interpolation for H.264/HEVC
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Reporter: taliho | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by taliho):
* version: unspecified => git-master
Comment:
I've tested on git master and observed the same.
The issue is that the call to av_read_frame returns many NAL packets with
unknown timestamps on this input. I assume that different muxers (if the
stream is going to be re-muxed) will handle this differently.
But in the above case ffplay does not handle missing timestamps.
I've sent in a patch that fixes the problem for this dataset:
http://ffmpeg.org/pipermail/ffmpeg-devel/2019-May/243877.html
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Ticket URL: <https://trac.ffmpeg.org/ticket/7895#comment:2>
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