摘要： 针对进程调度延迟、缓冲控制策略、二维DCT算法等方面存在的问题，基于IPv6网络视频应用提出一种软硬件协同工作的嵌入式系统优化设计方法，该方法实现嵌入式系统的硬件电路、操作系统和网络协议栈。在IPv6网络中进行视频流传输、解码和播放测试，结果表明当空间分辨率为320×240、时间分辨率为25 帧/s时，播放画面流畅、无等待延迟。

关键词: 嵌入式系统, 视频, 优化设计

Abstract: Aiming at existing problems of the delay of scheduling task, policy of administering buffer and algorithm of 2-D DCT, this paper proposes an optimized method for designing embedded system co-operating of hardware and software based on IPv6 network video application. It implements the circuit, operating system and network protocol stack of the embedded system. It transmits, decodes and plays the video streaming in IPv6 network for test. The result indicates when the space resolution is 320×240 and the time resolution is 25 frame/s, the playing menu is fluency and has not waiting delay.

Key words: embedded system, video, optimized design

中图分类号: 

• TP316.2