Mpeg2 Encoder and Decoder

The programs mpeg2encode and mpeg2decode are from the MPEG Software Simulation Group. The were obtained from: ftp://ftp.netcom.com/pub/cf/cfogg/mpeg2/mpeg2codec_v1.1.tar.gz

Simplified Instructions

To convert input.mpg to a series of ppm files output.0001.ppm output.0002.ppm ... 
  mpeg2decode -03 input.mpg output.%04d
Unfortunately, encoding an mpeg stream is more complicated. One must supply a parameter file. 
  mpeg2encode parameter_file output.mpg
A sample parameter file that encodes a series of ppm files input.0000.ppm to input.0004.ppm into the mpeg-1 file, output.mpg, is PPMtoMPEG.par . Be sure to edit the lines indicating the number of frames (in this case 5), the horizontal size (320), vertical size (240), display horizontal size (320), and display vertical size (240). Other examples of parameter files are as follows:

Accompanying documentation is as follows:

Stolen from http://tns-www.lcs.mit.edu/manuals/mpeg2