CN1889490A - Method for point-to-point content redistributing method based on content distributing network system - Google Patents
Method for point-to-point content redistributing method based on content distributing network system Download PDFInfo
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Abstract
A point to point content distribution method based on content distribution network includes receiving and playing audio/video data of content distribution network by initial user end then packaging said data and numbering it for buffer storage, judging speed of receiving audio/video data by follow up user end and obtaining multiple user end in receiving and playing the same content by index server in point to point content distribution system if speed is less than set threshold, connecting it with them to receive and play audio/video data as per number then packing said data and numbering it for buffer storage.
Description
Technical field
The present invention relates to a kind of point-to-point content re-distribution method of content-based distributing network system, belong to network data transmission
Technical field.
Background technology
Existing content distribution network system (hereinafter to be referred as the CDN system) can utilize a large amount of audio frequency and video user of a large amount of server services (to comprise program request and live user, as follows), existing point-to-point content delivering system (hereinafter to be referred as P2P) technology can be utilized user's a large amount of audio frequency and video user of Internet resources service itself.
CDN: content distributing network, according to the user distribution situation, organize the content distributing server of some, at first the content delivery of needs distributions to content distributing server, when the user reaches the standard grade, distribute the corresponding contents Distributor to give the user according to user situation (zone of living in, network condition etc.), the user is connected to received content data on the corresponding contents Distributor (using traditional host-host protocol mms, rtsp or the like).Shortcoming is: do not have connection between the user, can not provide data mutually, so the number of users that can serve is limited.
P2P: point-to-point content delivering system, according to the user distribution situation, organize the P2P forwarding server (incompatible) of some with the CDN content distributing server, at first the content delivery of needs distributions to P2P forwarding server (agreement of using in the transmission course is that the host-host protocol with CDN that defines of producer oneself is incompatible), when the user reaches the standard grade, by the P2P Tracker (retrieval server in the P2P system, can retrieve the user profile that other are are receiving and dispatching same content by it, comprise the network address, information such as operating position,) retrieve the P2P forwarding server or other are are receiving and dispatching the user profile of same content, and be attached thereto and receive the content-data that (the self-defining host-host protocol of producer) needs there, and can provide content-data for other users that need simultaneously from them.Shortcoming is: service provider must transform original CDN system, is replaced with specific P2P forwarding server.
Summary of the invention
The objective of the invention is to propose a kind of point-to-point content re-distribution method of content-based distributing network system, advantage in conjunction with above two type systematics, under the prerequisite that does not change existing CDN server architecture,, realize that the P2P of audio, video data distributes again in conjunction with the P2P technology.
The point-to-point content re-distribution method of the content-based distributing network system that the present invention proposes comprises following each step:
(1) the initial user end receives the also audio, video data of play content distributing network system from service end;
(2) the initial user end with the audio, video data packing, and is numbered buffer memory when playing above-mentioned audio, video data;
(3) the subsequent user end is judged the speed that receives audio, video data from service end, if speed is greater than preset threshold N, the audio, video data in the received content dissemination system then, if speed is less than preset threshold N, then by the retrieval server in the point-to-point content distribution system, obtain a plurality of user sides that receive and play same content, and be connected the back received and play a plurality of user side buffer memorys by numbering audio, video data with a plurality of user sides;
(4) the subsequent user end with the audio, video data packing, and is numbered buffer memory in reception and playing audio-video data.
In the said method, user side with the method for audio, video data packing and numbering buffer memory is:
(1) client is numbered packet according to the timestamp of the media data packet of collecting;
(2) media data packet with the certain hour section is merged into a bag.
The point-to-point content re-distribution method of the content-based distributing network system that the present invention proposes in conjunction with the advantage of existing two type systematics, in conjunction with the P2P technology, realizes that the P2P of audio, video data distributes again under the prerequisite that does not change existing CDN server architecture.The existing investment of protection service provider does not need to transform original CDN system, and the P2P between newly-increased client distribution function again can improve the quantity of service-user more than 10 times.
Description of drawings
Fig. 1 is the network configuration block diagram of the inventive method.
Embodiment
The point-to-point content re-distribution method of the content-based distributing network system that the present invention proposes, its network configuration block diagram as shown in Figure 1, at first the initial user end receives and the audio, video data of play content distributing network system from service end; The initial user end with the audio, video data packing, and is numbered buffer memory when playing above-mentioned audio, video data; The subsequent user end is judged the speed that receives audio, video data from service end, if speed is greater than preset threshold N, the audio, video data in the received content dissemination system then, if speed is less than preset threshold N, then by the retrieval server in the point-to-point content distribution system, obtain a plurality of user sides that receive and play same content, and be connected the back received and play a plurality of user side buffer memorys by numbering audio, video data with a plurality of user sides; The subsequent user end with the audio, video data packing, and is numbered buffer memory in reception and playing audio-video data.
In the said method, user side with the method for audio, video data packing and numbering buffer memory is: client is numbered packet according to the timestamp of the media data packet of collecting; The media data packet of certain hour section is merged into a bag, the timestamp/time period length of first bag before the numbering=merging of this bag.For example timestamp is accurate to a second one-level, same second media data packet is merged into a bag, the number that merges the back bag is exactly the second number of first bag before merging.Numbering switched-media data that just can be by above rule between the different user like this.
Below introduce content of the present invention in detail:
The initial user end receives the also audio, video data of play content distributing network system from service end, uses traditional host-host protocol mms, rtsp or the like, and this step is the same with existing C DN user behavior, becomes the end user.
The initial user end with the audio, video data packing, and is numbered buffer memory when playing above-mentioned audio, video data;
The subsequent user end is judged the speed that receives audio, video data from service end, if speed is greater than preset threshold N, it is the needed velocity amplitude of normal play, that is the code stream of audio, video data, the audio, video data in the received content dissemination system then, if speed is less than the needed velocity amplitude of normal play, then by the retrieval server in the point-to-point content distribution system, obtain a plurality of user sides that receive and play same content, and be connected the audio, video data that the back receives (using the self-defining host-host protocol of producer) by numbering and plays a plurality of user side buffer memorys with a plurality of user sides, become indirect user.
The subsequent user end with the audio, video data packing, and is numbered buffer memory in reception and playing audio-video data.
The concrete implementation step of the inventive method is as follows:
Be connected to existing CDN server and receive playing audio-video data (use traditional host-host protocol mms, rtsp or the like, this step is the same with existing C DN user behavior).
In playing audio-video data, packing data is also cushioned numbering be kept at user side.
When saturated or service quality descended when the CDN capacity, the user who newly reaches the standard grade retrieved the audio, video data that other being are are being received and dispatched the user of same content and are being attached thereto and receive (using the self-defining host-host protocol of producer) its buffering by P2P Tracker.
The user who newly reaches the standard grade in the 3rd step can store the data in user side equally and can provide data to other users after receiving data.
Claims (3)
1, a kind of point-to-point content re-distribution method of content-based distributing network system is characterized in that this method comprises following each step:
(1) the initial user end receives the also audio, video data of play content distributing network system from service end;
(2) the initial user end with the audio, video data packing, and is numbered buffer memory when playing above-mentioned audio, video data;
(3) the subsequent user end is judged the speed that receives audio, video data from service end, if speed is greater than preset threshold N, the audio, video data in the received content dissemination system then, if speed is less than preset threshold N, then by the retrieval server in the point-to-point content distribution system, obtain and play a plurality of user sides of same content, and be connected the back received and play a plurality of user side buffer memorys by numbering audio, video data with a plurality of user sides;
(4) the subsequent user end with the audio, video data packing, and is numbered buffer memory in reception and playing audio-video data.
2, the method for claim 1 is characterized in that wherein said user side with the method for audio, video data packing and numbering buffer memory is:
(1) client is numbered packet according to the timestamp of the media data packet of collecting;
(2) media data packet with the certain hour section is merged into a bag, then being numbered of this bag:
Timestamp/time period the length of first bag before the numbering=merging of bag.
3, method as claimed in claim 2 is characterized in that the wherein said time period is 1 second.
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| WO2008151536A1 (en) * | 2007-06-11 | 2008-12-18 | Huawei Technologies Co., Ltd. | Network communication data processing method, network communication system and client end |
| CN101500158A (en) * | 2008-12-26 | 2009-08-05 | 深圳市同洲电子股份有限公司 | Visible interphone and audio/video data transmission method and system |
| CN101911636A (en) * | 2007-12-26 | 2010-12-08 | 阿尔卡特朗讯公司 | Predictive caching content distribution network |
| CN102065150A (en) * | 2011-01-18 | 2011-05-18 | 乐视网信息技术（北京）股份有限公司 | Data transmission system and method based on P2P (Peer-to-Peer) network and CDN (Content Delivery Network) |
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| CN101267379B (en) * | 2007-03-14 | 2011-07-27 | 中国电信股份有限公司 | Uniform content carrying and dispatching system based on P2P and CDN |
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| CN102271163A (en) * | 2011-08-19 | 2011-12-07 | 中兴通讯股份有限公司 | Method and system for realizing direct-broadcasting code stream distribution |
| CN101478559B (en) * | 2008-05-29 | 2012-08-29 | 北京东方网信科技股份有限公司 | Multi-domain supporting P2P flow buffering scheme |
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| JP2003271440A (en) * | 2002-03-18 | 2003-09-26 | Oki Electric Ind Co Ltd | Contents delivery management system |
| JP2004207810A (en) * | 2002-12-24 | 2004-07-22 | Nippon Telegr & Teleph Corp <Ntt> | Ppp session communication service method, communication server, communication terminal, program for ppp session communication service, and recording medium thereof |
| JP2005004615A (en) * | 2003-06-13 | 2005-01-06 | Oki Electric Ind Co Ltd | Content distribution management system |
| CN100349431C (en) * | 2003-08-29 | 2007-11-14 | 华为技术有限公司 | Layered content distributing network and method thereof |
| KR100648572B1 (en) * | 2004-02-24 | 2006-11-24 | (주)씨디네트웍스 | Contents Delivery Network SYSTEM |
| CN1314250C (en) * | 2004-10-29 | 2007-05-02 | 清华大学 | A robust point to point based stream scheduling method |
| CN100559776C (en) * | 2005-01-20 | 2009-11-11 | 杨金钰 | A kind of stream media system |
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| CN101267379B (en) * | 2007-03-14 | 2011-07-27 | 中国电信股份有限公司 | Uniform content carrying and dispatching system based on P2P and CDN |
| US8756296B2 (en) | 2007-05-21 | 2014-06-17 | Huawei Technologies Co., Ltd. | Method, device and system for distributing file data |
| WO2008151536A1 (en) * | 2007-06-11 | 2008-12-18 | Huawei Technologies Co., Ltd. | Network communication data processing method, network communication system and client end |
| CN101083604B (en) * | 2007-07-18 | 2011-05-25 | 中兴通讯股份有限公司 | Method for selecting and switching stream media server in content distributed network |
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