>>1502960NTA but here's my webm. I downloaded the video with yt-dlp and converted it with ffmpeg.
#show different files available on youtube, choose id numbers (303+250)
yt-dlp -F
https://youtu.be/2Uy34s1FJUI?si=RNYoeBAjGeyiq1Wu#download best quality 1080p60 vp9 video with mediocre quality 63kbps opus audio
yt-dlp -f 303+250
https://youtu.be/2Uy34s1FJUI?si=RNYoeBAjGeyiq1Wu#see
https://trac.ffmpeg.org/wiki/Encode/VP9; two-pass, deadline and additionally:
#-vf mpdecimate [and] -vsync vfr [to discard duplicate frames]
#-vf scale=640:-2 [to scale to 640px width]
#-c:a copy [to copy the mediocre quality opus audio and avoid additional lossy to lossy conversion]
ffmpeg -i "Petters on the Low [2Uy34s1FJUI].webm" -vf "mpdecimate,scale=640:-2" -c:v libvpx-vp9 -b:v 0 -crf 54 -deadline best -vsync vfr -pass 1 -an -f null /dev/null && ffmpeg -i "Petters on the Low [2Uy34s1FJUI].webm" -vf "mpdecimate,scale=640:-2" -c:v libvpx-vp9 -b:v 0 -crf 54 -deadline best -c:a copy -vsync vfr -pass 2 petters_best.webm
