ffmpeg screen recording

Seeing that the OCVWarp post comparing it to ffmpeg was mentioned in February search performance results from google as the top growing page, I browsed ffmpeg.org to check how easy or difficult it would be to contribute a plugin to ffmpeg. Seems a bit complicated. Browsing further, found these instructions in the wiki for screen-recording video using ffmpeg. Quite useful information. And ffmpeg's wiki and bug-tracking runs on Trac.