#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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