ffmpeg-commands.txt

ffmpeg -f x11grab -r 60 -s 1920,1080 -i :0.0+1,1 -c:v libx264 -preset ultrafast -tune animation -an test.mkv
ffmpeg -f alsa -i default -f x11grab -s 1280,720 -i :0.0+320,180 -c:v libx264 -preset ultrafast -crf 20 -c:a libvorbis -q:a 6 test.mkv
ffmpeg -loop 1 -i ~/pictures/youtube/windmills_in_space.png -i ~/music/audio/Synthmaster\ Lumpy/Synthmaster\ Lumpy\ -\ Windmills...\ in\ Space\!.flac -c:v libx264 -tune stillimage -c:a libvorbis -q:a 8 -shortest windmills_in_space.mkv
ffmpeg -i test.mkv -itsoffset 1.05 -i nanalalala.flac -c:v copy -c:a libvorbis -q:a 8 -shortest nanalalala.mkv