Force usage of a particular VA-API driver for video acceleration. Use together with settings.ffmpeg.hwaccel_args.
Setting this is not required for VA-API to work, but it can help steer VA-API towards the correct card if you have multiple.
:::{.note} For VA-API to work you must enable hardware.graphics.enable (sufficient for AMDGPU) and pass for example pkgs.intel-media-driver (required for Intel 5th Gen. and newer) into hardware.graphics.extraPackages. :::
See also:
Declarations
Type
null or one of "i965", "iHD", "nouveau", "vdpau", "nvidia", "radeonsi"Default
nullExample
"radeonsi"