[FFmpeg-trac] #8941(undetermined:new): Wrong color levels with kmsgrab and vaapi

[FFmpeg]

#8941: Wrong color levels with kmsgrab and vaapi
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             Reporter:  kokoko3k     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  kmsgrab      |               Blocked By:
  vaapi color levels                 |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 Do you understand how this works? You encode then show the encoded frame,
 then encode that, etc. ffplay is failing here, this is a duplicate of
 #8862. We are not going to fix that, use normal player.

 P.S. CPU is also incorrect, first one has color 0x0E1821 and then it is
 0x0D1821 (and others!) and then it is worse and worse. You will alway lose
 on reencoding.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8941#comment:5>
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