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随着计算机技术、通信技术和视频编码技术的飞速发展,以及人们对视频业务需求的不断增长,数字音视频网络的应用变得越来越广泛。在用户端,采用什么样的终端接口和接入技术来接入视频传输网络显得尤为重要。文中设计了一个以PC为平台的E1终端接口传输卡,并实现了一个基于E1接口的MPEG-1数字视频的实时采集、传输、播放系统。
With the rapid development of computer technology, communication technology and video coding technology, as well as the increasing demand for video services, the application of digital audio-video network has become more and more widespread. In the client, what kind of terminal interface and access technology to access the video transmission network is particularly important. In this paper, a PC-based E1 terminal interface transmission card is designed and a real-time MPEG-1 digital video acquisition, transmission and playback system based on E1 interface is realized.