2019-06-19, 17:00
yes, mesa-va-drivers are needed for vaapi on amdgpu:
Quote:Description: Mesa VA-API video acceleration drivers@fritsch ping
These libraries provide the Video Acceleration API (VA-API) for Unix.
They provide accelerated video playback (incl. H.264) and video
post-processing for the supported graphics cards.
.
This package enables support for VA-API for some gallium drivers.