-tune zerolatency
March 13, 2022
9:23 AM
Highest quality
ffmpeg -i [file] -vf scale=-1:720 -c:v libx264 -crf 0 -preset veryslow -c:a copy -tune zerolatency [file] 
Default quality
ffmpeg -i [file] -vf scale=-1:720 -c:v libx264 -crf 23 -preset veryslow -c:a copy -tune zerolatency [file] 
Email quality
ffmpeg -i [file] -vf scale=-1:480 -c:v libx264 -crf 28 -preset veryslow -c:a copy -tune zerolatency [file] 
ffmpeg -i [file] -vf scale=-1:224 -c:v libx264 -crf 23 -preset veryslow -c:a copy -tune zerolatency [file] 
youtube-dl -o "Ukraine's far-right children's camp: 'I want to bring up a warrior'.%(ext)s" --external-downloader ffmpeg -f best -c:v libx264 -crf 23 -preset veryslow -c:a copy -tune zerolatency [link]
Data rate, bit rate
-maxrate 2M
From <[link]> 
ffmpeg -i [file] -vf scale=-1:540 -c:v libx264 -crf 28 -preset veryslow -c:a copy [file] 
ffmpeg -i [file] -c:v libx264 -crf 28 -preset veryslow -c:a copy -maxrate 2M [file] 
ffmpeg -i [file] -vf scale=-1:540 -c:v  libx264 -crf 28 -r 30 -preset veryslow -c:a copy -maxrate 2M [file] 