Stream media data request transmission method for multimedia telephone peer-to-peer (P2P) video-on-demand

Abstract

The invention relates to a stream media data request transmission method for multimedia telephone peer-to-peer (P2P) video-on-demand. A combination of one or more of a node marking mechanism, a safety zone compensation strategy and a data request scheduling strategy is adopted, wherein the node marking mechanism marks corresponding nodes according to a response of P2P data nodes to a data request and acquires data from a high-quality P2P data node; the safety zone compensation strategy pre-detects a data insufficient situation in a buffer zone and supplies sufficient buffer data to data reduction playback by quickly downloading deficient data blocks to a content delivery network (CDN) server; and the data request scheduling strategy schedules a data transmission rate and a data block requesting sequence among data transmission channels established between a user node and the various P2P data nodes so as to acquire a minimum data transmission delay. By adopting the stream media data request transmission method, even a stream media data quantity is larger, continuous and smooth playback of stream media can be realized; and the stream media data request transmission method is economic and convenient and has a wide application prospect.

Description

technical field [0001] The invention relates to a streaming media on-demand technology, in particular to a P2P on-demand streaming media data request transmission method adopted on a multimedia phone, and belongs to the technical field of P2P network streaming media. Background technique [0002] With the development of multimedia technology, multimedia phones are gradually entering ordinary families. Multimedia phones include the existing functions of general smart phones, and generally have network interfaces, which can complete functions such as website browsing, information interaction, and media playback. Realizing streaming media on demand on the phone is one of the main value-added service applications of multimedia phones. [0003] With the application of streaming media becoming more and more popular, the requirements for bandwidth resources are getting higher and higher, and the service time is getting longer and longer. The traditional server / client (S / C) can no l...

AI Technical Summary

Problems solved by technology

[0003] With the application of streaming media becoming more and more popular, the requirements for bandwidth resources are getting higher and higher, and the service time is getting longer and longer. The traditional server / client (S / C) can no longer meet the high scalability and high availability requirements

In recent years, the research community and the industry have proposed a variety of solutions, the more important ones are Content Delivery Network (Content Delivery Network CDN) and IP broadcast (IP Multicast), but the common feature of these solutions is that they need special hardware support : For example, CDN needs to deploy multiple CDN servers around the world, and distribute multimedia data through the collaborative work between servers. However, as the needs of users continue to grow, the number of servers needs to be continuously increased. Guarantee the smooth playback of multimedia data; and IP broadcasting needs to modify the current routing mechanism of the Internet, and widely deploy routers that support broadcasting functions

This is not only costly, but also difficult to be widely used

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