摘要
由于无线信道易错、时变和带限的特点,给视频数据的无线传输带来了巨大的挑战。基于无线网络实时视频传输的特点以及嵌入式系统的技术开发环境,根据H.264编码算法要求,提出了内存管理和多线程调度优化设计,并对H.264视频编解码器进行了代码优化。由实验结果可知,使用该优化方案能满足嵌入式无线实时视频通信的要求。研究成果已应用于军用视频通信产品中。
Because of the wireless channel error-prone,time-varying and band-limited characteristics,great challenges have been brought to wireless transmission of the video data. This paper proposes the memory management and the optimal design of multi-threaded scheduling based on the characteristics of wireless network in real-time video transmission and the technology development environment of the embedded system,as well as according to the requirements of the H. 264 coding algorithm,moreover,the code of the H. 264 video codec is also optimised. We can see from the experimental results that the optimisation scheme proposed in this paper is satisfactory to the requirements of embedded wireless real-time video communications. The result has been applied to military video communication products.
出处
《计算机应用与软件》
CSCD
2010年第12期266-267,298,共3页
Computer Applications and Software
