FFMPEG Command:
ffmpeg -i input.mkv -c:v libaom-av1 -crf 36 -b:v 0 -cpu-used 8 -row-mt 1 -tiles 2x2 -c:a libopus -b:a 64k output_libaom-av1.webm
Bitrate:
For 720p 60 fps, less than 800 kbps.
For 1080p 60 fps, less than 1200 kbps.
For 1440p 60 fps, less than 3600 kbps.
0:00 Best Quality
0:23 High Quality
0:38 Medium Quality
0:53 Low Quality