一种H.264/AVC over MPEG-2流的解决方案

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。

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

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.