A method and apparatus for creating and using a test bitstream to evaluate a video decoder. The test bitstream contains a plurality of variable length code and/or escape sequences (combination of escape code, run length code and/or level code) for testing the video decoder's ability to decode...http://www.google.com/patents/US5706002?utm_source=gb-gplus-sharePatent US5706002 - Method and apparatus for evaluating the syntax elements for DCT coefficients of a video decoder 
