智能手机流媒体技术的设计与实现

Design and Implementation of Intelligent Mobile's Streaming Media Technology

"流媒体"是应用流技术在网络上传输的多媒体,将视频、音频等多媒体信息进行特定的压缩处理,然后由视频服务器向用户计算机连续、实时地传送,用户可以一边下载一边收看。本文设计了一种智能手机上的无线流媒体传输系统,提出了基于RTP协议的端到端反馈拥塞控制策略,解决了无线网络传输时所产生的高误码率和带宽时变等问题,结合MPEG-4编解码技术,通过无线网络接收媒体流。

＂Streaming media＂ is a kind of multimedia applied streaming technology which is transmited in internet.This mode firstly processes video and audio in some compress ways in the video server,then continuously sends them to clients.Its real-time transmission＇s ability helps to achieve download and play simultaneously.This paper realizes a wireless streaming multimedia system based on smart mobile phone.This system puts forward an end-to-end feedback congestion control strategy based on RTP protocol,and solves wireless network transmission at high error rate and the time-varying bandwidth issues,with MPEG-4 decoding and encoding,users can receive streaming media.