基于DHT的流媒体共用讨论板的设计与实现  

DESIGN AND REALIZATION OF DHT-BASED SHARED STREAMING MEDIA BOARD

作　　者：肖黎黎[1] 覃少华[1] 常棠棠[1] 吴明生[1] 

机构地区：[1]广西师范大学计算机科学与信息工程学院,广西桂林541004

出　　处：《计算机应用与软件》2009年第6期121-123,261,共4页Computer Applications and Software

基　　金：广西教育厅项目(桂教科研[2005]47号)

摘　　要：针对目前基于C/S模式的逆向调用和聚合体系的即时通讯共用讨论板存在的不足,提出一种新的分布式流媒体共用讨论板的设计与实现方法。采用DHT技术对参与讨论的站点进行组织和消息路由,利用RTP/RTCP协议对视频、音频进行实时传输和同步回放。该讨论板能够减少对界面的起始连接和调用远处对象的操作,实现了跨平台和分布式流媒体应用的需求。实验仿真结果表明,与基于树状的聚合体系相比较,该讨论板具有更好的站点定位性和路由健壮性。The disadvantage of existing instant communication shared whiteboard,which is implemented based on c/s callback and aggregate architecture, a scheme of design and realization of distributed shared streaming media whiteboard is proposed in this paper. In this scheme,the discussion members are organized and the routing messages in the system are managed with DHT technology, and the video and audio are transmitted and replayed by adopting the RTP/RTCP protocol in real time. It can decrease the number of initial connection on inter-face and the operation of remote procedure call （RCP）, and satisfy the demand for cross-platform and distributed application of streaming media. The experimental results show that the proposed scheme is praised for its better robust and more efficient to locate information compared with tree-based aggregation architecture.

关 键 词：流媒体共用讨论板 CHORD JMF RTP/RTCP 

分 类 号：TP37[自动化与计算机技术—计算机系统结构] TP393[自动化与计算机技术—计算机科学与技术]