Adaptive media streaming

Technology for performing dynamic adaptive streaming over hypertext transfer protocol (DASH) is described. A planned route may be selected for a mobile device. Wireless channel information may be received for the planned route from a channel information database (CID). Geographical locations along the planned route where wireless network channel conditions are below a defined threshold may be determined based on the wireless channel information. Additional segments of a media file may be requested from a media server prior to entering the determined locations along the planned route. 描述用于执行通过超文本传输协议的动态自适应流传送(DASH)的技术。可以为移动设备选择计划路线。可以从信道信息数据库(CID)为计划路线接收无线信道信息。可以基于无线信道信息来确定沿着计划路线的、无线网络信道状况低于所定义阈值的地理位置。在沿着计划路线进入所确定的位置之前，可以从媒体服务器请求媒体文件的附加段。