Method for realizing quasi real-time network video based on p2p technology

Abstract

The invention relates to a method for realizing quasi real-time network video based on the p2p technology. In the invention, a system node buffer zone is erected in a staggering way; the node is automatically updated, the system calibration method is adopted and node video time delay in viewing a same video is maintained in a certain range; the node differentially dispatches different sections ofa local buffer zone; the staggering arrangement of the system node buffer zone is employed to adjust data and obtain nodes; so that node bandwidth can be fully made use of and load balancing among system nodes can be achieved; the method of the invention can also adapt to isomerism of the network and the nodes, ensure transmission of key frames on a priority basis when network bandwidth is not sufficient and dynamically adjust video quality of the node.

Description

technical field [0001] The invention belongs to the field of p2p network streaming media, especially the field of quasi-real-time network video. Background technique [0002] In recent years, p2p (peer-to_peer) technology has been widely concerned and developed. The use of p2p technology to download files has been relatively mature, and BT, eMule, etc. have become commonly used download software. With the rapid development of streaming media and network technology, the transmission of multimedia, especially real-time video streaming, through the Internet has attracted more and more attention. However, since the transmission of multimedia through the Internet requires a large network bandwidth, the traditional C / S architecture adopts the server forwarding mode, and the limited bandwidth and processing capacity of the server has made it difficult to support large-scale user applications. P2P technology effectively solves this problem. While downloading and watching streaming...

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