文中主要对流媒体传输技术的发展现状进行了研究。首先,分别介绍了RTSP/RTP、HTTP渐进式下载以及自适应传输技术并从实现难易度、支持业务及实时性等方面对这三种流媒体传输技术进行对比;其次,对现存的自适应流媒体传输技术提出新的分类方式:推式流媒体传输和拉式流媒体传输,详细分析了两类自适应传输关键技术,给出了相应的实例分析,并对两类自适应传输技术进行对比;再次,介绍了基于可分级视频编码的自适应传输技术;最后,对最新的流媒体传输实例进行详细的介绍。
Studiy the development status of media streaming technology.First of all,introduce and compare RTSP/RTP,HTTP progressive download respectively;Then,classify the existing adaptive streaming technology into two categories:push-based and pull-based streaming,give detail instruction of two categories of adaptive streaming technology with examples and analysis of adaptive streaming,and compare two categories of adaptive streaming technology;Finally,give the examples of the latest media streaming technology in detail.