【作者】 朱晓梅；

【导师】 郭宇明；

【作者基本信息】 大连交通大学 ， 交通信息工程及控制， 2007， 硕士

【摘要】 随着Internet和多媒体技术的迅速发展，人们对通过网络获取多媒体信息的需求越来越多，视频点播、远程教学、新闻发布等多点通信业务将成为新一轮运营竞争的焦点。于是一种针对有限网络带宽下的实时多媒体数据传输技术一基于IP组播的流媒体视频技术应运而生。流媒体技术是一种专门用于网络多媒体信息传播和处理的新技术。该技术能够在网络上实现传播和播放同时进行的实时工作模式。目前，已经成为网上音、视频，特别是实时音视频传输的主要解决方案。更重要的是，IP组播技术的应用与实现，提高了网络利用率，减轻了服务器负载，充分利用了网络信息资源，有着巨大的潜在应用市场和发展前景。本文中，利用现有的网络设备和条件构建IP组播系统。该系统的实现包括硬件实现和软件实现两部分。硬件实现部分即利用现有的网络设备搭建一个支持IP组播通信的平台，从而为IP组播应用的实现提供了基础组播环境；对著名的流媒体解决方案(Windows Media)进行组播流传输的配置，从而在所搭建的平台上提供基于IP组播的音／视频服务。软件实现部分，利用Winsocket套接字网络编程对视频网络中IP组播系统进行了实现。该流媒体视频组播系统采用了C／S模式，基于Windows平台，利用Windows Media实现，完成了从服务器到客户端之间数据的高效率传输。实践证明，该系统具有实时性好、有效减轻了网络负载、应用系统间互操作性强，实现相对简单等优点。更多还原

【Abstract】 As the rapid development of the Internet and multimedia,the demand which the people pursue the informance of the multimedia is increasing. The communication service,for example VOD,news release and so on,is becoming competitive focus. So the technique of data transmission of the real time multimedia-streaming media video system based on IP Multicast technique is emerging as the times require.The technique of streaming media is one new technique which transmit and deal with communication of multimedia. This technique realize the working module of transmission and playing simultaneity on the network. At present the technique of streaming media is becoming important resolvent on the network.Importantely,the application of IP multicast technique improve network availability,alleviate the load of the server adequately and have latent foreground.In the thesis,conceive IP multicast system which utilize existing equipment and condition of network. The system include two parts. The part of hardware establish on the flatporm of IP multicast communication;configure multicast streaming transmission on the flatform of Windows Media. The part of software realize IP multicast system which utilize programme of Winsocket. Windows Media,based on the Windows,adopt the mode of the C/Sand accomplish the data transmission from server to terminals.The test prove that this system have the advantages for example well real time quality,depressed load effectively,better operation between application systems and simple implement.更多还原