cut: ffmpeg -ss 01:05:00.000 -i input.mp4 -to 01:05:31.624 -c:v copy -c:a copy -copyts output.mp4
scale: ffmpeg -i input.mp4 -filter:v scale=-1:720 -c:a copy output.mp4
crop: ffmpeg -i input.mp4 -filter:v "crop=(distance from start at left):(distance from start at top):(distance from left of video):(distance from top of video)" output.mp4
webm: ffmpeg -i input.mp4 -c:v libvpx-vp9 -b:v 0.97M -pass 1 -an -f null NUL ;
ffmpeg -i input.mp4 -c:v libvpx-vp9 -b:v 0.97M -pass 2 (-c:a libopus) output.webm
extract: ffmpeg -i input.mp4 -vn -acodec copy output-audio.mp4