to run program run main44 files included pframecal: will do processing regarding P frames bframecal: will do processing regarding B frames Iframecal: will do processing regarding I frames GOP: will return Gropu of pictures to do processing motionEst: motion estimation for P frame BmotionEst: motion estimation for B frame MC: motion compensation zigzag and dezigzag.m pdecoder: will decode P frames bdecoder: will decode B frames Idecoder: will decode I frames forwardDCT: calculates DCT & quantization inverseDCT: calculates IDCT & inverrse quantization