Simultaneously this paper according to the theory of MPEG-4 decoding, analyzes the essential technology of VLD, RLD, IQ, IDCT, motion compensation in the decoding, and implements the software prototype of decoder.

• 同时本文根据MPEG-4解码的理论,重点分析了解码过程中的VLD、RLD、IQ、IDCT、运动补偿等关键技术,实现了解码器的软件原型。