The Design And Implementation Of Multi-Channel Real-time MPEG Codec System

At present, digital TV become the hotpot of the television industry. In those years, with the establishment of relevant Chinese standards, the technology of digital TV has been applied in many other fields. Expedited by the market demand and the development of technology, more and more digital TV products will be found in common family. At present, TV program execution and broadcast are in the transition status. The equipment used in this industry is innovating profoundly.This thesis first reviews the development history of Digital TV Broadcasting, and analyses the structure of the TV station forepart. Then, based on the requirement of Digital TV, this thesis put forward the demands of Multi-Channel Real-time MPEG-2/4 encoder-decoder system. After analyzing relative standards of digital TV system, this thesis put forward four designs of the encoder/decoder system and compares them to get the best design which accord with the demands. Furthermore, it discusses the hardware design and software design of this encoder system, emphasizes the design of hardware configuration module, database configuration module, and driver module, and the cooperation of these modules and main controller module. This thesis also stresses the self-test and self-recovery design of system.At the end, three equipments can be derived from the encoder/decoder system are brought forward, to make the digital broadcast front-end system more consummate.