Video-on-demand system based on P2P (Peer-To-Peer)

Abstract

The embodiment of the invention discloses a video-on-demand system based on P2P (Peer-To-Peer). The system comprises a server side and a client side, wherein the server side comprises a stream service module, a memory indexing module, a memory scheduling module and a video memory module; and the client side comprises a downloading scheduling module, an uploading scheduling module and a video caching module, wherein the downloading scheduling module is used for downloading data from the server side and other user nodes when users demand a video, the uploading scheduling module is used for providing data for the users with requests after receiving data requests of other users, and the video caching module is used for caching the data pushed by the server side. By implementing the embodimentof the invention, a P2P structure is used as a network structure of a streaming media service, data transmission efficiency is improved, and load on broadband is reduced; a memory structure is divided into a server and a client, which has the characteristics of mutual coordination and clear assignment of responsibilities; and the video-on-demand system based on P2P is designed in a modularizationmanner and has excellent expandability.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a P2P-based video-on-demand system. Background technique [0002] The rapid development of the Internet has driven the development of related industries, of which digital media is an important part. In recent years, various large-scale video and audio streaming media have become the main driving force for the development of broadband network applications due to their unique entertainment and interactivity. Among various applications related to streaming media, video on demand (VOD) is widely used in distance education, e-commerce, TV on demand and so on. With the increasing demand for information in the form of streaming media, the traditional Client / Server architecture has gradually been unable to meet it. In order to solve this problem, P2P technology is used more and more widely. P2P (Peer To Peer) technology realizes the sharing of system resources and information th...

AI Technical Summary

Problems solved by technology

[0005] With the expansion of the system scale and the increase of on-demand users, the difficulty of resource location and management in the peer-to-peer network increases, and the existing technology cannot solve it well; the existing technology uses the supplier discovery mechanism, using centralized The indexing of resources by the directory server is simple, but the load of the directory server is too heavy, the security performance is low, and the disaster recovery capability is poor; the cache management in the peer-to-peer network is simple, the utilization rate is low, the scheduling algorithm is not intelligent enough, and there is no persistence and real-time sexual assurance

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