System, method and service node for providing video contents

Abstract

The invention discloses a system, a method and a service node for providing video contents. The system, the method and the service node are used for saving storage space of the service node and reducing concurrent processing performance requirements of the service node when video contents are provided. The system comprises a central node and a first service node. The central node is used for receiving a video playing request sent from a user terminal, determining the first service node providing service, and forwarding the video playing request to the first service node; and the video playing request carries UA information and video identification. The first service node is used for determining a playing format supported by the user terminal according to the UA information, and determining an object file according to the video identification and the playing format; if the first service node has the object file, the object file is returned to the user terminal; if the first service node does not have the object file, the central node is inquired for whether a second service node with the object file exists or not; if so, the second service node is requested to return the object file to the user terminal; and if not, real-time transcoding operation are performed on the video contents corresponding to the video identification to acquire the object file to return to the user terminal.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a video content providing system, method and service node. Background technique [0002] A form of expression of video is a technology that captures, records, processes, stores, transmits and reproduces a series of still images in the form of electrical signals. Video was originally developed for TV systems. With the development of mobile Internet, there are more and more terminal types that can receive and play video, such as computers, ordinary mobile phones, smart phones, smart phones and tablet computers (PAD, Portable Application Description ), etc. Since different types of terminals have corresponding requirements for video formats and bit rates, video operators are required to provide multiple different formats for the same video content to support access by different types of terminals. In this way, when content providers provide the same video conte...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned pre-transcoding method, although video operators only need to manage video files in one format, they still need to store a large amount of the same video content in different formats in the service nodes of the video distribution network, resulting in a large amount of storage space for the video distribution network. The waste of storage makes the storage utilization rate low; and in the real-time transcoding method, after receiving the user's video playback request, the service node is required to quickly complete the video transcoding process and return it to the user, otherwise it will lead to a decline in user experience. Therefore, service nodes need to be able to support real-time transcoding capabilities under the condition of a large number of concurrent users, and the concurrent processing performance requirements of service nodes are relatively high.

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