201028013329019_白军伟.doc

多媒体调度系统中SIP和RTSP互通技术的研究与实现 白军伟1 1（中国科学院 沈阳计算技术研究所，辽宁 沈阳 110004） E-mail ：baijw@ 摘　要：随着流媒体技术与IP通信技术的快速发展，SIP协议与RTSP协议的互联互通问题日益凸显。由于目前基于SIP的多媒体调度服务器缺乏对传统RTSP协议的支持，与现实中已部署的基于RTSP的设备出现不兼容问题。因此，论文在深入调研现有多媒体调度系统特性的基础上，提出了将SIP协议与RTSP协议融合的方法，以解决SIP与RTSP的通信兼容性问题。为此，论文设计并实现了RTSP代理服务器，并从信令对应、地址映射、交互流程设计等几个方面对SIP与RTSP协议互通进行了论述，设计并完成了SIP与RTSP协议转换模块，实现了SIP信令与RTSP信令的转换功能。最后，搭建了测试环境，对系统的功能进行了集成测试。实验结果验证了该方法的可行性与正确性，为基于SIP的多媒体调度系统与RTSP设备的集成问题提供了较好的解决方案。 关键词：SIP；RTSP；信令转换；互联互通 The Research and Implementation of SIP and RTSP Intercommunication in Multimedia Scheduling System BAI Jun-wei1 1（Shenyang Institute of Computing Technology, Chinese Academy of Science, Shenyang 110168, China） Abstract: As the rapid development of streaming media technology and IP communication technology, the SIP protocol and RTSP protocol interoperability issue becomes increasingly prominent.Due to the lack of support for the traditional RTSP protocol, the SIP-based multimedia scheduling server has the incompatibility issues with the RTSP-based devices that have been deployed. Therefore, on the basis of deep research into the characteristics of the existing multimedia scheduling systems, the paper puts forward the method of integrating the SIP and RTSP protocols, to resolve the communication compatibility problems.For this purpose，this paper designs and realizes the RTSP proxy server,and discusses the protocol communication problem between SIP and RTSP protocol from the aspects of protocol method corresponding, address mapping, interactive process design and so on. And the SIP and RTSP protocol conversion module is designed and implemented, realized the protocol method conversion between SIP and RTSP. Finally, this paper sets up a test environment to test the functionality of the system. The test results verifies the feasibility and validity of the method, which provides a good solution for the integration between the multimedia scheduling system based on SIP protocol and RTSP devices. Key words: SIP; RTSP;