6、idealplatform.ThekeypointstorealizevideoencodinginDSP.ThewholesystemschemebasedonDM642isgiven.H.264isrealizedandtheperformanceofthissystemisgiven.Thedecodingspeedhasachievedthereal-timeeffect,theimagesubjectivequalityisgood,notobviousblockeffect,thecoderateisalsoquitelow. Ke