The Optimization Implementation of H.264 Video Encoder Based on General DSP

摘要

Compared with MPEG-4 and other previous standards, H.264 standard has achieved great break through in coding performance. To meet the requirement of embedded video encoder in various scenarios, an H.264 real-time encoder based on TI TMS320C 6455 is presented in this paper. According to the characteristics of the structure, resources and instruction of the selected DSP, a lot of work have been done at the structure level, the algorithm level and the code level to get a high performance encoder. The experimental results demonstrate that, for the video sequences with 720×576 format, the H.264 encoder optimized can achieve the encoding speed of more than 25 frames per second, which can meet the real-time requirements of the applications.