两种实时视频压缩算法DSP嵌入式框架方案比较  

Comparison Between two Frameworks Schemes for Video Encoding Embedded System on DSP

作　　者：须明[1] 王博[1] 何亦征[1] 方向忠[2] 

机构地区：[1]中国航空无线电电子研究所,上海200233 [2]上海交通大学信息工程学院,上海200030

出　　处：《航空电子技术》2006年第1期33-37,共5页Avionics Technology

摘　　要：在DSP上实现中高分辨率的实时视频数据压缩系统,首先要解决的问题就是选择实现高效率的运行系统框架。本文介绍并讨论了两种适用于在TMS320DM642多媒体处理芯片上实现实时视频压缩算法应用的嵌入式软件实现框架,即TI公司推荐的RF5多任务参考框架和单任务框架。实验分析表明,两种框架的效能是相同的,单任务框架更适合于定制DSP压缩算法的实现与调试。On realizing the complex real-time embedded compression system of medium or higher resolution video, the decision must be made first on which framework should be invoked. In this paper two candidate schemes is introduced for use in the RF5 multi-task reference frame and the single-task frame. And the comparison is also made between the properties of system possibilities and the convenience for testing and debugging the video compression codes. The test analysis shows that the efficiency of the two schemes is identical, and however single-task frame is more applicable for realizing and debugging of dedicated DSP compression algorithms.

关 键 词：TMS320DM642 DSP/BIOS实时操作系统 RF5参考框架 

分 类 号：TN919.8[电子电信—通信与信息系统]