Wanted to give svt-av1 a try in ffpmeg v4 but found out that it's a crippled implementation. There are patches that apply cleanly and appear to work (at least with my testing). Reproducible: Always Steps to Reproduce: 1. Not a bug. 2. 3. Quick dirty way to test, the patches have to be applied in order. mkdir -p /etc/portage/patches/media-video/ffmpeg cd /etc/portage/patches/media-video/ffmpeg x=1 for i in 04b89e8ae3 64e2fb3f9d 0463f5d6d5 c5f3143090 c33b404885 1dddb930aa \ 50bc872635 51c0b9e829 e3c4442b24 ded0334d21 70887d44ff fe100bc556 6fd1533057; do wget "https://gitlab.com/1480c1/FFmpeg/-/commit/${i}.patch" -O "$(echo "0$x" | rev | cut -c-2 | rev)-$i.patch" x=$(($x + 1)) done and to test encoding ffmpeg -i somefile.mp4 -c:v av1 -crf 28 -b:v 1000k -c:a copy output.mkv
