libfame is a video encoding library.

It can currently encode MPEG-1 and MPEG-4 rectangular video, as well as
MPEG-4 video with arbitrary shape.

Objectives
   - Compliance : Provide bitstreams compliant to the MPEG-1, MPEG-2 and
     MPEG-4 video standards.
   - Speed : Provide a fast implementation of the techniques used in MPEG
     standards.
   - Flexibility : Allow the user to choose between different options for
     speed, compression ratio and quality.
   - Portability : Support many different platforms and architectures.

WWW: http://fame.sourceforge.net/