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Scalable-coding-based peer to peer live media streaming system

A technology of extended coding and peer-to-peer network, applied in transmission systems, image communication, selective content distribution, etc., can solve problems such as being unsuitable for P2P streaming media systems, and achieve the effect of improving fairness and overall performance

Active Publication Date: 2011-08-17
大连倚天软件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This incentive mechanism uses reduced download time as a reward, which can effectively reduce free riders in file sharing systems, but in P2P streaming media systems, download time is not the decisive factor affecting user experience
Therefore, the traditional P2P incentive mechanism is not suitable for application in the P2P streaming media system

Method used

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  • Scalable-coding-based peer to peer live media streaming system
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Embodiment Construction

[0035] Embodiments of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0036] Such as figure 1 As shown, the present invention is a peer-to-peer network streaming media system using scalable coding technology. The system includes video acquisition equipment to provide video sources for the system; scalable encoding server to encode video data; video memory to store video data; tracking server to manage node information in the system and checksum information of video data; XML The database stores node information and data verification information in the system in the form of XML; nodes distributed in a heterogeneous environment, each node is both an uploader and a downloader.

[0037] The encoding server in the present invention performs scalable encoding processing on the video source obtained by the video acquisition device. The encoding standard adopts H.264-SVC, and the video is divided into a basi...

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Abstract

The invention discloses a scalable-coding-based peer to peer live media streaming system, which belongs to the technical field of network multimedia. The system is characterized by providing a scalable live media streaming service by adopting scalable coding and peer to peer technologies, performing video distribution by adopting a catalogue centralized peer to peer structure, and putting forward a motivation mechanism taking video quality as a motivational factor as well as a mixed-priority-based request scheduling strategy. The system can provide adaptive video services with different quality values according to network environments of a user, improves the fairness and downloading efficiency by adopting the effective motivation mechanism and the scheduling strategy, shortens a starting delay and a channel switching delay, and improves the overall performance.

Description

technical field [0001] The invention belongs to the field of network multimedia technology, relates to a peer-to-peer network streaming media live broadcast system based on scalable coding, relates to video processing technology based on scalable coding, and particularly relates to video data transmission and scheduling strategies in heterogeneous peer-to-peer networks and incentive mechanism design methods. Background technique [0002] With the wide application of broadband technology, network streaming media services have developed rapidly. The ever-increasing number of users and the improvement of users' requirements for service quality have challenged the traditional streaming media services based on the client / server model. The emergence of peer-to-peer network technology (Peer to Peer, P2P) provides new development opportunities for network streaming media services. The peer-to-peer network technology makes full use of the upload bandwidth resources of each node in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/63H04N21/643H04L29/08
Inventor 杨世宇刘秀龙赵雨杨丹申彦明李克秋
Owner 大连倚天软件股份有限公司
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