基于TMS320DM642的H.264解码器的实现与优化  

Implementation and optimization of H.264 decoder software based on TMS320DM642

作　　者：刘羽楠[1] 国澄明[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电子测量技术》2007年第6期96-99,共4页Electronic Measurement Technology

摘　　要：本文描述了基于TMS320DM642 DSP多媒体平台的H.264解码器的实现和优化。简单介绍了该解码器的硬件平台之后,讲述了移植解码器的过程,包括将基于PC的H.264解码程序DSP化;随后介绍了针对各解码模块的优化方法。实验结果表明:与原始的H.264解码器(JM74)相比,该解码器提高了运行速度,可以进行实时应用。This paper describes the implementation and optimization of H. 264 decoder based on TMS320DM642 DSP platform. After briefly introducing the hardware system, the procedure of porting the decoder is described that includes the digital signal processing on decoder program based on H. 264 of PC. Then the optimization methods for every decoding module are explained. The experiment results indicate that comparing with JM74, the running speed of decoder is increased and the performance of the decoder in real-time applications is good.

关 键 词：H.264/AVC 解码器 移植 算法优化 

分 类 号：TN919[电子电信—通信与信息系统]