【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。更多还原

【Abstract】 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.更多还原