It would be great to have an "add logo" (on some corner of the encoded video, something as FairUse does > http://www.fairusewizard.com/) feature, for who (such as) needs to watermark own videos.
Check out how implement it in this very interesting discussion:
http://www.mail-archive.com/ffmpeg-soc@ ... 07777.html
Hope that helps, or at least inspires !
