OptionalbitrateConstant bitrate target in kbps
OptionalminrateMinimum bitrate in kbps
OptionalmaxrateMaximum bitrate in kbps
OptionalcrfConstant Quality CRF value, 0–63
OptionalqualityQuality/speed tradeoff: 0 (best quality) to 5 (fastest)
OptionalcpuCPU-used (speed setting), 0–5 (best to fastest)
OptionaltileNumber of tile columns (log2), 0–6
OptionaltileNumber of tile rows (log2), 0–2
OptionalrowEnable row-based multi-threading
OptionalaqAQ mode: 0=off, 1=variance, 2=complexity, 3=cyclic
OptionallagLag in frames for alternate reference frames, 0–25
OptionalautoEnable auto alt-ref frames
OptionalarnrNumber of alternate reference frames, 1–6
OptionalpassTwo-pass encode pass number: 1 or 2
OptionalpasslogfileTwo-pass stats file path
OptionalkeyintKeyframe interval
OptionalpixForced pixel format
Typed options for the libvpx-vp9 encoder. Derived from
ffmpeg -h encoder=libvpx-vp9dump.