1920.1080 to 1280.720 [mkv]
March 13, 2022
8:49 AM
ffmpeg -i [file] -vf scale=-1:720 -c:v libx264 -crf 18 -preset veryslow -c:a copy [file]
Highest quality
ffmpeg -i [file] -vf scale=-1:720 -c:v libx264 -crf 0 -preset veryslow -c:a copy [file]
Default quality
ffmpeg -i [file] -vf scale=-1:720 -c:v libx264 -crf 23 -preset veryslow -c:a copy [file]
Email quality
ffmpeg -i [file] -vf scale=-1:480 -c:v libx264 -crf 28 -preset veryslow -c:a copy [file]
From <[link]> 