TransCode

See
http://www.transcoding.org/cgi-bin/transcode …

Transcode is a suite of command line utilities for transcoding video and audio codecs, and for converting beween different container formats. Transcode can decode and encode many audio and video formats, e.g.

MPEG-1/2

MPEG-4(-part 3) (also DivX and XviD variants)

Quicktime / MPEG-PS (dvd) (decode only)

MPEG-1-layer-1/2/3 audio

AC3 audio

A variety of video and audio pre and post-processing filters are available, including (but not limited to):

video de-interlacing

audio resampling

framerate conversion

smoothing

cutting

Transcode can import DVDs on-the-fly, or record from Video4Linux (including V4L2 video capturing) devices.