基于RTP报文修改的单一流映像机制研究与实现

Research and Implementation of a Single Streaming Image Mechanism Based on RTP Package Modification

随着因特网流媒体应用的日益普及和流行,流媒体缓存代理技术逐渐成为近年来研究的热点。本文对实现流媒体缓存代理服务器的核心技术——单一流映像机制进行了理论上的分析和探讨;并结合实际项目研究,提出了RTP协议报文修改算法,通过在流媒体缓存代理服务器端采用该算法,成功实现了单一流映像机制。实际测试结果表明,这种基于报文修改算法的单一流映像机制十分有效。

As the application of the Internet streaming media becomes more and more popular, the streaming caching proxy technology turns to a hot research point in recent years. This paper analyses the principle of Single Streaming Image （SSI）, which is the kernel technology used to implement streaming caching proxy. An algorithm based on RTP package modification is put forward in the paper. Through deploying the algorithm in the streaming caching proxy, SSI is implemented successfully. The practical testing results prove that the SSI based on RTP package modification is effective.