To show AV1 codec thumbails in Files:
#!/bin/bash
# g3-popos-install-files-thumbnail-av1-support.sh
set -x
sudo apt install -y ffmpegthumbnailer
sudo apt install -y ffmpeg gstreamer1.0-libav gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly
mkdir -p ~/.local/share/thumbnailers
echo '[Thumbnailer Entry]
TryExec=/usr/bin/ffmpegthumbnailer
Exec=/usr/bin/ffmpegthumbnailer -s %s -i %i -o %o -f
MimeType=video/x-av1;' > ~/.local/share/thumbnailers/av1.thumbnailer
rm -rf ~/.cache/thumbnails/*
