摘要
简要概括了视频会议系统的设计原理,重点讲述了视频会议系统的实现过程,从视音频俘获、视音频数据压缩、数据传送、数据接收、数据解压,到音频数据播放、视频数据显示的整个过程。特别是对实现过程中的难点,例如:模拟会议室的创建过程、命令解析、视音频同步、音频数据的混音处理、中间代理服务器转发等做了详细的讲解。并对视频会议系统的发展和应用前景进行了认真的分析。
The essay generalize the design principle of VAMS （ Video - Audio Meeting System）, In Special, descript the realize process of VAMS, the whole process comprises VA （ Video - Audio） data capture, VA data encode, data send, data receive, Audio data play, video data display. The difficult problem was explained particularly, for instance, the create process of meeting room, command analysis, synchronization of Audio play and Video display, Stereo process of Audio data, the tranmit of agent server. The essay analysis the development of foreground of VAMS.
出处
《微处理机》
2009年第3期49-52,共4页
Microprocessors
