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[Oibaf <1931045@xxxxxxxxxxxxxxxxxx>]

** Changed in: mesa
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1931045

Title:
  FFMPEG silently falls back to software encoding on AMD GPU

Status in Mesa:
  Incomplete
Status in ffmpeg package in Ubuntu:
  Invalid
Status in mesa package in Ubuntu:
  Incomplete

Bug description:
  FFMPEG hardware encoding fails on AMD hardware:

  Passing -hwaccel vaapi flag as per command below:

  Command used was:

  ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128
  -hwaccel_output_format vaapi -ss 15 -i input.mp4 -t 25 -c:v h264_vaapi
  -global_quality 15 -c:a copy -map 0 output.mkv

  
  Will silently fail and transcoding will be done on CPU silently when using on AMD GPU.

  The only sign that something is wrong is this WARNING:

  [hevc_vaapi @ 0x55f2ca003e80] Driver does not support some wanted
  packed headers (wanted 0xd, found 0x1).

  and for h264:

  Press [q] to stop, [?] for help
  [h264_vaapi @ 0x55762dd4de80] Driver does not support some wanted packed headers (wanted 0xd, found 0x1).

  
  During transcode operation CPU usage is high, and GPU usage is zero. FFPROBE on OUTPUT.MKV reports that encoder used was software.

  My syste:  Thinkpad T14s (AMD Ryzen7) Ubuntu Mate 21.04 (5.11)

  bash $ sudo inxi -x -G
  Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Renoir vendor: Lenovo driver: amdgpu v: kernel
             bus ID: 07:00.0
             Device-2: Chicony Integrated Camera type: USB driver: uvcvideo bus ID: 2-2:2
             Display: server: X.Org 1.20.11 driver: loaded: amdgpu,ati unloaded: fbdev,modesetting,vesa
             resolution: 1920x1080~60Hz
             OpenGL: renderer: AMD RENOIR (DRM 3.40.0 5.11.0-18-generic LLVM 11.0.1) v: 4.6 Mesa 21.0.1
             direct render: Yes

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