Optimization and Implementation of H.264 Encoder Based on DSP Platform
基于DSP平台的H.264编码器的优化与实现

There is great complexity in H.264 encoder. Therefore, it is difficult to implement an encoder in DSP platform which can run in real-time environment. In this paper, the coding architecture of H.264 Baseline Profile is introduced first, and some reasons for limiting speed are presented according to the analysis of the coding architecture. Besides, several implementation techniques for optimization are presented based on the characteristics of TMS320DM642 chip. The H.264 Baseline Profile encoder is finally real-time implemented based on DSP platform. The testing results demonstrate that encoder has sped up remarkably after optimization, which can meet the real-time encoding requirements for the video sequences with CIF format.