基于结构调整的H.264环路滤波器快速DSP实现  

Fast Realization of Loop Filter in H.264 Based on TMS320DM642

作　　者：张鹏[1] 曹铁勇[2] 王耿[1] 庞高杰 

机构地区：[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学指挥自动化学院信息作战系,江苏南京210007 [3]总参谋部陆航部通信站,北京101114

出　　处：《军事通信技术》2010年第4期46-51,共6页Journal of Military Communications Technology

摘　　要：文章首先介绍了H.264/AVC[1]视频编码框架下的环路滤波算法和滤波器结构,然后以TM S320DM 642 DSP为平台,在调整环路滤波器结构的基础上,综合运用各种底层代码优化技术,用线性汇编语言实现环路滤波器的核心算法,提升了环路滤波器的效率。The architecture of the loop filter was firstly described together with its algorithmic realization under the framework of H.264/AVC.Then through adjusting band order of the filter operation,the core algorithm of loop filter was realized by using line assembly with several optimization technologies based on TMS320DM642 DSP.After conducting optimization,the efficiency of the optimized loop filter was improved remarkably.

关 键 词：新一代视频压缩编码标准 环路滤波 数字信号处理芯片 优化与实现 

分 类 号：TN91[电子电信—通信与信息系统]