基于ICE安全策略的视频会议系统的设计与实现

发布时间：2018-03-06 18:11

本文选题：视频会议　切入点：流媒体　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着多媒体技术的飞速发展与互联网技术的日益普及,传统的语音、文字通信方式已经无法满足人们对高效实时信息的通信需求,在这种需求的推动下,视频通信方式必将替代传统的通信方式。为了实现在互联网上高效的传输视频信息,需要得到多种技术的支持。而数字视频压缩技术正是视频网络传输中的关键技术之一。在现有网络带宽的条件下,为了实现视频信息更高效的传输,需要对视频的压缩技术提出更高的要求。作为新一代视频压缩标准,ICE具有更好的信道适用性、更高的压缩质量、更开放的基本系统。与此同时,ICE还被广泛应用于视频会议、视频压缩存储、视频流媒体服务、网络视频传输等领域中,前景十分广阔。而本文所要做的就是在vs2008环境下利用C++开发语言编写支持ICE编解码的视频通信模块的代码,实现流媒体服务器端与客户端的实时视频通信,以及在客户端可对服务器端AVI格式的视频进行点播观看。在此基础上重点研究的内容主要集中于4个方面:搭建源码在vs2008下的编译环境、掌握ICE编解码的原理与流程、搭建视频会议系统的架构、修改源代码实现正常的视频通信和本地AVI视频的播放。本文首先介绍了FFmpeg中ICE视频编解码的过程,分析了这一过程中ICE编解码的原理与流程。基于上述分析,将开源的视频会议项目Omnimeeting的编解码模块修改为ICE编解码模块。随后搭建Omnimeeting的运行环境,最终实现流媒体服务器端与客户端的实时视频通信,以及客户端对服务器端AVI格式视频的点播观看。
[Abstract]:With the rapid development of multimedia technology and the increasing popularity of Internet technology, the traditional voice and text communication methods can no longer meet the communication needs of high efficiency real-time information. Video communication will replace the traditional communication mode. In order to achieve efficient transmission of video information on the Internet, Digital video compression technology is one of the key technologies in video network transmission. In order to achieve more efficient transmission of video information under the condition of existing network bandwidth, digital video compression technology is one of the key technologies in video network transmission. As a new generation video compression standard, ICE has better channel applicability, higher compression quality and more open basic system. At the same time, ICE is also widely used in video conferencing. The future of video compression storage, video streaming service and network video transmission is very broad. What this paper is going to do is to use C language to write the code of video communication module supporting ICE coding and decoding in vs2008 environment. Realize the real-time video communication between the streaming media server and the client. On the basis of this, the research focuses on four aspects: build the compiling environment of source code under vs2008, master the principle and flow of ICE coding and decoding, Build the architecture of video conference system, modify the source code to realize normal video communication and local AVI video playback. Firstly, this paper introduces the process of ICE video coding and decoding in FFmpeg. The principle and flow of ICE coding and decoding in this process are analyzed. Based on the above analysis, the open source video conference project Omnimeeting codec module is modified to ICE codec module. Then the running environment of Omnimeeting is built. Finally, the real-time video communication between the streaming media server and the client is realized, and the on-demand viewing of the server-side AVI video is also realized.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.63

【共引文献】