[FFmpeg-trac] #9569(avformat:new): spdifenc: Unusual frame timing (TrueHD)

[FFmpeg]

#9569: spdifenc: Unusual frame timing (TrueHD)
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             Reporter:  Mitzsch01    |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  spdif        |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by acedogblast):

 I have a short semi-working fix. I was looking through the kodi code that
 Mitzsch01 referenced and found a small difference. On line 475 on
 spdifenc.c where there is a comment about the sanity check where
 MAT_FRAME_SIZE is divided by 2. In the kodi code that same code used
 MAT_FRAME_SIZE multiplied by 2 instead. I have built mpv with this
 modified change and it mostly fixed the dropouts when playing normally but
 will still drop audio on seeking. Overall it is more stable with less
 dropouts. Tested with the opening race scene on Cars 3 which was dropping
 a lot with the atoms track.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9569#comment:8>
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