具有首屏加速能力的HTTP直播流代理服务设计

Design of HTTP Live Streaming Proxy Service with First Screen Acceleration Ability

针对电视机等视频播放终端相关设备的开发和应用,主要介绍一种对服务端网络视频播放终端设备进行代理推流的服务系统。通过将其他网络内的多媒体数据流或服务器端的本地媒体文件等数据进行代理转发,实现了减小终端播放设备首次打开某一流媒体所用时间的目的,亦达到了兼容多种网络环境和多种类型客户端、节约网络带宽、避免不必要的网络带宽占用及降低系统部署复杂度的作用。介绍的系统通常可作为互联网视频直播的末端局域网针对媒体播放终端对加快首屏加载速度的需求而部署的服务系统,如可用于电视机播放网络直播视频时快速频道切换的实现。

This paper deals with the development and application fields of related equipment of video playback terminals such as TV sets.This paper mainly introduces a proxy push-flow service system for video playback terminal equipment in the server network.By proxy forwarding the multimedia data stream in other networks or local media files on the server side,the purpose of reducing the time taken by the terminal player to open a certain streaming media for the first time is achieved.It can also be compatible with a variety of network environments,various types of clients,save network bandwidth,avoid unnecessary network bandwidth occupation and reduce the complexity of system deployment.The system introduced in this paper can usually be used as a service system deployed in the terminal LAN of Internet video live broadcasting to meet the needs of media playing terminals to speed up the loading speed of the first screen.For example,it can be used to accelerate channel switching when TV plays live network video.