f=webm

acodec=libopus
ar=48000
ab=128k

vcodec=libaom-av1
vb=0
crf=45
row-mt=1
tile-columns=2
tile-rows=1
cpu-used=4
strict=experimental

meta.preset.name=AV1 WebM
meta.preset.extension=webm
meta.preset.note=AV1 video with Opus audio in Matroska container: Just say no to patents