基于IP组播视频会议系统的研究与实现  

Research and Development of a Videoconference System Based on IP Multicast Technology

作　　者：董兴娥[1] 迟学芬[1] 周仁贵[1] 张涛[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2007年第4期385-390,共6页Journal of Jilin University（Information Science Edition）

基　　金：吉林省科技厅基金资助项目(20040530)

摘　　要：为了解决IP网络上多媒体通信领域的带宽资源缺乏问题,论述了视频会议系统的设计及系统实现过程中关键技术的解决方案。提出了采用IP组播方式传输视频流,以节省网络带宽;参照H.332协议设计该系统终端与终端之间的通信机制;使用DirectShow技术处理每个客户端之间的视频数据交互,并开发了网络视频流传输Filter。测试结果表明,使用组播传输有效地节省了网络带宽,系统具有很好的规模扩展性。To resolve the limitation of banclwidth resources existed in multimedia communication on IP network, the design of real-time video communication system and key technology solutions in system implementation are discussed. This system adopts IP multicast to transmit video stream in order to save on the bandwidth, designs the communication mechanisms among every terminals referring to H. 332 protocol, uses DirectShow technology to manage video stream and develop the filters for video transmission. The test result proves that using IP multicast can effectively save on bandwidth. It also shows good expansibility in system scope.

关 键 词：软件视频会议 IP组播 H.332协议 

分 类 号：TN919.8[电子电信—通信与信息系统]