网络流媒体服务器的机制与实现研究  

Research on mechanism and implementation of network streaming-media-server

作　　者：张兴明[1] 耿晨歌[1] 汪乐宇[1] 

机构地区：[1]浙江大学仪器系数字技术及仪器研究所,浙江杭州310027

出　　处：《计算机工程与设计》2004年第1期61-64,共4页Computer Engineering and Design

摘　　要：网络流媒体服务器是指在IP网络上提供实时视频(音频)流服务的网络服务器,对服务器的机制与实现进行了深入研究,在RTP/RTCP协议和RTSP协议基础上,提出了“生产者线程-消费者线程”的架构,用面向对象的方法和事件驱动的机制实现服务器异步工作方式,充分利用系统资源,提高了服务器的并发性和实时性。基于反馈报文的流服务器流量自调节,解决了网络拥塞时实时数据传输的问题。The research on the mechanism and implementation of network streaming-media-server is presented, which services real-time video (audio) streams over Internet. Based on the RTP/RTCP and RTSP protocols, the 'producer thread - consumer thread' architecture and implements asynchronous working mode with object originated method and event driven pattern are put forward. The streaming-media-server's concurrency and real-time ability are improved upon this architecture. The implementation of network bandwidth self-adjusting based on the feedback of real-time data transmission solves the real-time transferring problem when the network is congested.

关 键 词：流媒体 网络服务器 事件驱动 流量控制 RTP RTCP RTSP 生产者线程-消费者线程 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术] TP368.5[自动化与计算机技术—计算机科学与技术]