[FFmpeg-trac] #10188(avdevice:new): kmsgrab pixel formats missing DRM_FORMAT_ARGB2101010 and others

[FFmpeg]

#10188: kmsgrab pixel formats missing DRM_FORMAT_ARGB2101010 and others
-------------------------------------+-------------------------------------
             Reporter:  jean         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avdevice     |                  Version:  git-
             Keywords:  kmsgrab      |  master
  pixfmt                             |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug: When a DRM plane is using certain formats found in
 modern wayland compositors, kmsgrab will fail to recognize the pixel
 format and refuse to start.
 How to reproduce:
 On KDE Plasma wayland 5.26.5:
 {{{
 % sudo ffmpeg -f kmsgrab -i - output.mp4
 ffmpeg version N-109841-ge3bbf5c17d Copyright (c) 2000-2023 the FFmpeg
 developers
   built with gcc 12.2.1 (GCC) 20230201
 ...
 [kmsgrab @ 0x559fd171b2c0] Framebuffer pixel format 30335241 is not a
 known supported format.
 }}}
 This was tested on Arch Linux.

 The specific pixfmt missing in my case was `DRM_FORMAT_ARGB2101010`,
 though it's possible other formats of this classification (32 bpp format
 with 10 bits per color and 2 bits of alpha) might also be used and would
 also need to be added.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10188>
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