[M4IF Technotes] mpeg2 DCT Vs mpeg 4 DCT

[Sandeep Casi]

Hi,
  What is the difference if any between mpeg2 and mpeg4 interms of DCT, motion estimation, etc. I am trying to port mpeg2 DCT based algorithm to mpeg4 and would like to know if anything is common between mpeg2 & mpeg4. Please also point me to any documents that would help me.
thanks,
Sandeep
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