for %i in (*.mp4) do ffmpeg -i "%i" -c:v libx265 -vtag hvc1 -preset fast "%~ni_265.mp4"
ffmpeg -i input.mp4 -c:v libx265 -vtag hvc1 -preset fast input_compressed.mp4
for %i in (*.mp4) do ffmpeg -i "%i" -c:v hevc_nvenc -preset fast "%~ni_nvda.mp4"
https://stackoverflow.com/a/69316283/5728614
-crf 20
-preset fast