AVS熵解码在OMAP3530上的实现及优化  

Implementation and Optimization of AVS Entropy Decoding on OMAP3530

作　　者：宋娜[1] 牛丽君[1] 张刚[1] 

机构地区：[1]太原理工大学信息工程学院,山西太原030024

出　　处：《电视技术》2014年第3期56-59,共4页Video Engineering

基　　金：国家自然科学基金项目(60772101)

摘　　要：结合DSP硬件结构,首先对指数哥伦布码算法的实现进行结构上的调整,其次对熵解码部分的手工汇编实现高效的流水编排,最后结合熵解码数据的存储访问对cache进行优化。仿真结果与传统的C语言相比,程序运行周期降低了约21.49%,码率也显著提高。In this paper, combining DSP hardware architecture, the implementation of Exp-Golomb code algorithm is firstly adjusted in structure. Then highly efficient pipeline arrangement is achieved on the hand assembly of entropy decoding part. Finally the cache is optimized combining the storage and access of entropy decoding data. The results demonstrate that the program operation cycle reduces by about 21.49% compared with traditional C code, and the code rate also improves significantly.

关 键 词：AVS 熵解码 OMAP3530 优化 

分 类 号：TN919.8[电子电信—通信与信息系统]