一种新型可编程多功能多媒体处理平台的研究与实现  

Research and realization for a kind of programmable multimedia develop platform

作　　者：孙燕[1] 国澄明[1] 

机构地区：[1]天津大学,天津300072

出　　处：《电子测量技术》2007年第5期150-153,共4页Electronic Measurement Technology

摘　　要：本文旨在提出一种可编程多功能多媒体处理平台方案。首先深入了解基于TMS320DM642媒体处理器的多功能多媒体处理平台硬件系统的设计原理,然后深刻理解算法并针对平台优化算法,最后通过修改与硬件相关的软件,将软件系统移植到DM642平台上。在该平台上实现了标准清晰度数字电视信源解码器(含TS流解复用、D1分辨率的MPEG-2视频解码和MPEG-2音频解码)、MPEG-4视频解码器(D1分辨率)和基于H.264标准的网络视频监控系统(CIF图像实时解码和QCIF图像实时编码)。This paper introduces a programmable multimedia develop platform. Firstly, it analyses the overall scheme of the multl-functlonal multimedia process platform based on TMS320DM642.Then, the algorithms are comprehended and optimized. Finally the software is transplanted to the DM642 platform by modifying the software according to the hardware. What＇s more, a SDTV source decoder, which includes a TS demultiplexer, D1 MPEG-2 video decoder and MPEG-2 audio decoder, a MPEG-4 decoder （D1） and a network video surveillance system, are realized on this platform based on H.264 standard （CIF real-time decoder and QCIF real time encoder）.

关 键 词：DM642 标准清晰度数宁电视 信源解码器 H.264 网络监控 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]