[FFmpeg-trac] #7945(undetermined:new): regression in interplay MVE decoding

[FFmpeg]

#7945: regression in interplay MVE decoding
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             Reporter:  criezy       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 There is a regression playing some interplay MVE movies and git bisect
 points to commit 8f86e66 being the culprit. It's parent is fine. And I
 have tested that the issue is still present in 714c8b0 (I can't compile
 anything more recent and created a separate bug about that).

 I reproduced the issue using a video from the video game Kingdom: The Far
 Reaches. See the two attached images showing a frame from video
 KING060.MVE, the bad one using commit 8f86e66 and the good one using its
 parent.

 I have tested all the MVE videos from http://samples.mplayerhq.hu/game-
 formats/interplay-mve/ but unfortunately none of those show the issue.
 However as I am not sure if attaching supposedly copyrighted material is
 fine, I have opted not to attached one from the Kingdom video game to this
 ticket until told I can do so. Otherwise the game is available to buy on
 https://www.gog.com/game/kingdom_the_far_reaches

 This is on macOS 10.12, but others have seen the issue on other systems.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7945>
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