一种H.264/AVC over MPEG-2流的解决方案  

Scheme for H.264/AVC Video Streaming over MPEG-2 System

作　　者：李志刚[1] 张兆扬[2] 

机构地区：[1]上海大学通信与信息工程学院,上海200072 [2]新型显示技术及应用集成教育部重点实验室,上海200072

出　　处：《计算机工程》2006年第6期228-229,271,共3页Computer Engineering

基　　金：国家自然科学基金重点资助项目(60332030)

摘　　要：对如何将H.264/AVC视频流经MPEG-2的系统传输层传输提出了一种解决方案。要点是:先把H.264/AVC视频作为MPEG-2系统层传输的基本流,然后扩展MPEG-2标准中的传输流系统目标解码器(T-STD),使之可以将H.264/AVC编码视频作为MPEG-2传输流(TS)在Internet上传输和解码。被解码的基本流通常来自于一个“容器”文件(如AVI或者TS),在客户端从服务器端的这个容器中取出H.264/AVC基本流后便可实时解码、显示。仿真实验表明,该方案能够获得较好的流视频效果,在带宽受限的情况下信噪比低于40dB的帧数少于5%,可用于网络流视频或移动视频中。The paper proposes a solution for how to transport H.264/AVC video stream over MPEG-2 system by exploiting all the existing large amount of the infrastructure of MPEG-2 systems. The key technologies are as follows： Firstly an H.264/AVC video is used as an elementary stream of MPEG-2 system, then it extends the transport stream-system target decoder （T-STD） of MPEG-2 standard, so as to pack the H.264/AVC video elementary stream into MPEG-2 transport stream （TS） to transport through Internet and decode it in the client. The decoded elementary stream should ordinarily come from a container, such as AVI or TS. It extracts the H.264/AVC video from this container to be real-time decoded and be represented in the client after the reception. The experimental result shows that it get a good effect, with less than 5% frames whose PSNR〈40dB even in the case of bandwidth-constrained scenario. The streaming solution can also be used for mobile video.

关 键 词：H.264 AVC MPEG-2 传输流 网络抽象层 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]