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

FFmpeg trac at avcodec.org
Tue Nov 3 19:37:34 EET 2020


#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 Balling):

 >it sets the wrong one and i've to use xrandr to manually switch it to
 full levels every boot;

 You can't just use xrandr to switch to full. You need to also set your
 monitor settings (or is it LG C9 :) ) to high black level / full range. If
 you will set one to full/high and the other to limited/low... It will F
 things up. Auto detection is VEEERY broken.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8941#comment:11>
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