Video/audio file multi-source download method and device

Abstract

The method includes steps: based on media data abstract and integrated file abstract of object file requested by client end to search file source of object file; building up set from files with same media data abstract of object file in file source; feeding back information of file source in the set to the client end initiated the request; based on the received information of file source, the client end initiated the request down loads object files in parallel. The invention also is related to down loading device of multiple sources for video / audio files. Through two times of filtration, the device obtains set of identical or similar file sources of object file. According to characteristic of video / audio files, the invention adds similar file sources of object file so as to raise speed for down loading object file, as well as raise utilization ratio of bandwidth in file sharing system.

Description

technical field [0001] The invention relates to network file download technology, in particular to a multi-source download method and device for video and audio files in a peer-to-peer network (P2P, Peer to Peer) environment. Background technique [0002] For a long time, audio and video and other multimedia data, that is, audio and video files, have been the main components of the entire Internet traffic. Because video files are relatively large, in order to increase their download speed, multi-source download technology represented by P2P, P2P and client / server (P2SP, Peer to Server and Peer) networking has been widely used in recent years. The so-called multi-source download refers to a file download method in which a target file is downloaded concurrently from multiple file sources in the network. [0003] Existing multi-source download technology uses Hash algorithms such as Message-Digest Algorithm (MD5, Message-Digest Algorithm5) and Secure Hash Algorithm (SHA, Secur...

AI Technical Summary

Problems solved by technology

However, this judgment method can be applied to various file systems, and does not take special consideration for audio and video files

[0006] Video and audio files are frequently used in the current network download, and the data volume is large, and its own data format is also different from other files. Specifically, There are files with exactly the same audio and video encoding data but different label attributes. The existing download method does not pay attention to the special format of the audio and video files. In this way, it is a waste of network resources and it is difficult to meet the download speed requirements of the client.

Images