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

[FFmpeg]

#8941: Wrong color levels with kmsgrab and vaapi
-------------------------------------+-------------------------------------
             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            |
-------------------------------------+-------------------------------------

Comment (by jkqxz):

 kmsgrab has no way to find those properties from the input, so they are
 all unknown and each component may interpret that in its own way.  Use
 setparams at the start of the filter chain to set the colour properties to
 the values matching your input to get consistent behaviour.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8941#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker