vcodec=libvpx
g=120 lag-in-frames=16 deadline=good cpu-used=0
vprofile=0
qmax=63 qmin=0 b=768k #ignored unless using -pass 2 maxrate=1.5M minrate=40k auto-alt-ref=1 arnr-maxframes=7 arnr-strength=5 arnr-type=centered