AVS帧内预测算法DSP平台的实现  

The AVS Intra-prediction Algorithm Implementation Based on DSP Platform

作　　者：刘耀禹 任超远 李付江[2] 

机构地区：[1]晋中陆军预备役高炮团,山西晋中030600 [2]太原理工大学信息工程学院,山西太原030024

出　　处：《科技情报开发与经济》2013年第9期122-124,共3页Sci-Tech Information Development & Economy

基　　金：国家自然科学基金资助项目(60772101)

摘　　要：结合TMS320DM6446平台硬件特性,完成D1分辨率AVS帧内预测算法实时实现。采用了单宏块双缓冲处理机制,实现EDMA传输与DSP处理AVS帧内模式选择并行完成。对耗时的残差运算和重构运算进行汇编级指令集优化,经过汇编级优化后,残差运算所需时钟周期数是只经过C语言级优化的6.03%;重构运算所需指令周期是只经过C语言级优化的4.43%。Considering the structural characteristics of the hardware platform, AVS real-time encoding for D1 resolution is implemented based on TMS320DM6446 platform. The intra-frame predictive coding is completed in parallel with single macro-block double buffering mechanism for DSP process and EDMA transfer data. Assembly optimization for AVS residuals and reconstruction operations is implemented. The assembly optimized cycles required is about 6.03% of the original optimized by C code for residuals by CCS3.3 profile and it is about 4.43% for reconstruction.

关 键 词：AVS 帧内预测算法 EDMA 汇编优化 DSP平台 

分 类 号：TN941.3[电子电信—信号与信息处理]