| 摘要 |
Methods and apparatus, including computer program products, for an expansion of a stream set and transcoding of Hypertext Transfer Protocol (HTTP) adaptive streaming videos in a mobile network. A method includes, in a mobile content delivery network (CDN) server residing in a mobile network, maintaining a database of mobile subscriber information for mobile subscribers derived from the mobile network, receiving a mobile client request to download a video stream, ingesting a manifest file from a server in the network originating the requested video, deriving characteristics of a mobile device of the mobile client from mobile subscriber information derived from the database of mobile subscriber information for mobile subscribers derived from the mobile network, expanding a set of streams in the manifest file depending on the derived characteristics of the mobile device, transcoding the set of streams from the server in the network originating the requested video into alternate bit rates suitable for a current mobile network condition, and delivering the set of streams to the mobile client. |
