linux video encoding for ryzen renoir APU

• install vaapi driver ( libva-mesa-driver )
• VBR 5M 

• ffmpeg -vaapi_device /dev/dri/renderD128 -i input.mp4 -vf 'format=p010,hwupload' -c:v hevc_vaapi -b:v 5M -profile 2 output.mp4  

• VBR 15M (too much?)
• ffmpeg -vaapi_device /dev/dri/renderD128 -i input.mp4 -vf 'format=p010,hwupload' -c:v hevc_vaapi -b:v 15M -profile 2 output.mp4

https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Verifying_VA-API

https://wiki.archlinux.org/index.php/Codecs_and_containers

https://trac.ffmpeg.org/wiki/Hardware/VAAPI