[FFmpeg-trac] #7588(avfilter:new): Incorrect VMAF score computation
FFmpeg
trac at avcodec.org
Tue Dec 4 15:15:59 EET 2018
#7588: Incorrect VMAF score computation
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Reporter: Ilya87 | Owner:
Type: defect | Status: new
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: libvmaf | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Ilya87):
If I remux Sintel_x264_2pass_5000_1.mkv using mkvmerge
(Sintel_x264_2pass_5000_1_mkvmerge in folder above), ffmpeg shows right
results, so the question is - it is a bug of
Haali Matroska Writer b0 (that is used by x264) or matroska demuxer in
ffmpeg?
MKValidator shows 2 warnings for Haali Writer muxed file:
WRN801: The segment has no SeekHead section
WRN800: The segment has Clusters but no Cues section (bad for seeking)
Can this be the reason for bad computation and is it possible (needed) to
adopt ffmpeg demuxer for this case?
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Ticket URL: <https://trac.ffmpeg.org/ticket/7588#comment:5>
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