视频CDN缓存
文章目录 视频特点 视频参数 码率调整 什么是码率调整 码率自适应技术 视频传输 基于HTTP的流媒体传输 CDN cache服务器 什么是CDN CDN形象比喻 CDN 文件系统&&缓存机制 视频+cache CDN实施技术 用户访问网站步骤 video quality delivered by individual CDNs can vary substantially across clients (e.g., across different ISPs or content providers) and also across time (e.g., flash crowds) [39, 37]. Similarly,because the video player has only a few seconds worth of buffering and the bandwidth could fluctuate significantly, we need to make quick decisions (e.g., future bitrates) based on the current client buffer level and bandwidth so that the buffer does not drain out [27]. 视频特点 -变化不大