We are proud members of:
This is an old revision of the document!
Grab video (800×600) with 30 pixel top-offset.
ffmpeg -r 24 -f x11grab -s 800x600 -i :0.0+0,30 -threads 0 -vcodec libx264 /tmp/out.mkv
Transcode said video to ogg format:
ffmpeg2theora /tmp/out.mkv