f=webm

acodec=libopus
ar=48000
ab=128k

vcodec=libvpx-vp9
vprofile=2
pix_fmt=yuv420p10le
vb=0
crf=16
rc_lookahead=16
quality=good
speed=2
slices=4
tile-columns=6
frame-parallel=1
auto-alt-ref=1
lag-in-frames=25
row-mt=1

meta.preset.name=ten_bit/10-bit VP9 WebM (Opus)
meta.preset.extension=webm
