移动网络上的流媒体业务

Streaming Media Service on Mobile Network

在移动网络上开展流媒体业务,最大的问题是无线环境的时变性容易引起丢包时延,导致缓冲过多、图像质量差和播放中断。因此,应使流媒体系统根据网络带宽的变化,适当调整服务器传送的音视频流。介绍了相应的关键帧技术和动态多码率技术,以及在终端上实现无线流媒体业务的整个流程。

The most troublesome problem in deploying streaming media service is the package-lost delay, which results in too much buffer, low-quality image and interrupted play. Streaming media system should adjust audio and video streaming to bandwidth variety. This article introduces related key-frame and dynamic multi-code-rate technologies and shows the whole procedure to implement wireless streaming media service.