Optimization and Implementation of AVS Encoder Based on TMS320DM6446

摘要

This paper focuses on AVS video encoder implementation and optimization based on TMS320DM6446 DSP. A deep analysis is made of the algorithm of RM52i, which is the reference model of AVS and find the key modules that affect encoding speed. According to the characteristics of the structure, resources and instruction of DM6446, a lot of work have been done at the algorithm level, memory space allocation and code structure level to get a high performance encoder. The experimental results demonstrate that, for the video sequences with 720×576 format, the AVS encoder optimized can achieve the encoding speed of more than 25 frames per second, which can meet the real-time requirements of the applications.