In reaction to Robert Hooker about performance. Did some benchmarks with
"mpv" and 1080i h264 transport stream footage trying all three possible
acc. backends on [Radeon HD 6320].

*vdpau (native)
*Splitted-Desktop Systems VDPAU backend for VA-API 
*mesa gallium vaapi

All of them seem to perform equally maybe some 1-5% difference. Maybe
because there isn't real 'vdpau' on AMD so its implementation of vdpau
is like the other VAAPI ones using the same optimize tricks (combination
of hardwaredecoder/shaders/etc/gpu offload)?

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https://bugs.launchpad.net/bugs/1481832

Title:
  VA-API implementation for gallium missing

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