[FFmpeg-trac] #4583(undetermined:new): Decoding artifacts with ffvp9

[FFmpeg]

#4583: Decoding artifacts with ffvp9
-------------------------------------+-------------------------------------
             Reporter:  kagami       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Certain VP9 bit-streams show corruption when decoding with ffvp9. Decoding
 with libvpx-vp9 seem to be fine.

 How to reproduce:

 {{{
 ffplay ffvp9_corruption.webm
 [Corruption is visible in certain frames, starting with 4th second]

 ffplay ffvp9_corruption.webm -vcodec libvpx-vp9
 [No corruption here]

 ffmpeg version N-72436-g403940d Copyright (c) 2000-2015 the FFmpeg
 developers
 built with gcc 4.8.4 (Gentoo 4.8.4 p1.4, pie-0.6.1)

 libvpx version v1.4.0-397-g26ab314
 }}}

 Sorry if it's a known bug but I've searched in bugtracker and all similar
 issues are closed. I also tried to pass "-threads 1" option to ffplay but
 it didn't help.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4583>
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