基于RTSP协议网络监控系统的研究与实现.pdf

计算机工程与设计 Computer Engineering and Design 茅炎菲，黄忠东：基于RTSP 协议网络监控系统的研究与实现 2011, Vol.32, No.7 2523 基于RTSP 协议网络监控系统的研究与实现 茅炎菲， 黄忠东 (浙江大学计算机科学与技术学院，浙江杭州310027) 摘 要：针对当前主流的监控系统受网络带宽的限制等问题，提出了在有较好扩展性的实时流协议基础上实现的网络监控 系统。分析讨论了实时流协议的协议格式、特点和参数，并介绍了H.264 编解码技术，基于开源项目Live555 实现了多媒体服 务端，具备网络监控系统的实时播放和回放模式。与基于HTTP 协议的网络监控系统进行性能比较，在针对帧率和花屏等方 面有了大幅度提高。 关键词：实时流协议; 网络监控; Live555; 流媒体; 帧 中图法分类号：TP393 文献标识码：A 文章编号：1000-7024 (2011) 07-2523-04 Research and design of web DVR system based on real-time streaming protocol MAO Yan-fei, HUANG Zhong-dong (College of Computer Science and Technology, Zhej iang University, Hangzhou 310027, China) Abstract ：Web DVR system based on a better scalability real-time streaming protocol in the market monitoring system is proposed which constrant by network bandwidth. First, the real-time streaming protocol ’s format, characteristics and parameters are discussed, and the H.264 codec technology is described. Then, the open source proj ect of Live555 is used to develop media services and implement the web DVR system, which contain real-time mode and playback mode. Finally, comparison with the performance of web DVR based on HTTP protocol, the results show that methodologist and strategies are feasible. Key words ：RTSP; web DVR; Live555; streaming media; frame 泛支持的处理流媒体传输的协议，它建立并控制一个或几个 0 引 言 时间同步的连续性流媒体。尽管连续流媒体流与控制流有可 [ ] 1 信息化科技、网络技术的迅猛发展，使得越