Avidemux is a free video editor designed for simple cutting, filtering and 
encoding tasks. It supports many file types, including AVI, DVD compatible 
MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated 
using projects, job queue and powerful scripting capabilities.

This requires lame, faad2, faac, a52dec, libdca, xvidcore, and x264.
Optional dependencies are aften, amrnb, and jack-audio-connection-kit.