WO2008089686A1

WO2008089686A1 - Method for p2p streaming media live technology parallel extension

Info

Publication number: WO2008089686A1
Application number: PCT/CN2008/070127
Authority: WO
Inventors: Conglai Huang
Original assignee: Conglai Huang
Priority date: 2007-01-17
Filing date: 2008-01-17
Publication date: 2008-07-31
Also published as: CN101018201A

Abstract

A method for P2P streaming media live technology parallel extension is provided, wherein after the streaming media publication source has registered the program information to plurality of streaming media buffer servers respectively, the streaming media publication source sends the streaming media data to the streaming media buffer servers periodically, after the streaming media buffer server has logged on the main management server, the streaming media buffer server registers the streaming media information list; the main management server stores all streaming media buffer servers list, and updates the streaming media buffer server information periodically, the P2P management server communicates with the main management server periodically, reports the server seed information; the client logs on the login server firstly, according to the load situation of all current P2P management servers, the login server selects a P2P management server which the people numbers are not full and logs on the P2P management server, through schedule of the login server, the client selects the little load P2P management server, scheduling between plurality of P2P management servers for parallel extension, thereby the problem of network congestion is resolved effectively.

Description

Parallel expansion method of P2P streaming media live broadcast technology

#细 or

[1] The present invention relates to a streaming media transmission technology, and more particularly to a parallel expansion method of a streaming media live broadcast technology based on P2P technology.

[2] The traditional streaming media technology solution is shown in Figure 1. It is to set up a central streaming media server, such as media.

Service or real

The server sends a streaming program on the server side, and each client watching the streaming program needs to connect to the streaming server to request streaming media data, and then download the data to play locally. The disadvantage of this technical solution is that as the number of users watching programs increases, the server load and bandwidth consumption increase exponentially. For example, a 500 BPS code rate program requires 200,000 users to view at least 200 servers and 10 G bandwidth, which is very expensive. The live streaming media is transmitted by the P2P technology, and the streaming media receiving end also sends streaming media data. However, the streaming media information source data is getting larger and larger. If a large number of users log in to the same P2P server, the blocking problem may still occur.

[3] The object of the present invention is to solve the problem that a large number of users need multiple servers.

[4] In order to achieve the above object, the present invention provides a parallel expansion method for P2P streaming media live broadcast technology, in which a streaming media publishing source registers program information with a plurality of streaming media buffer servers, and then sends streaming media data to a streaming media buffer server. After the streaming media buffer server logs in to the primary management server, the streaming media information list is registered; the primary management server saves all the streaming media buffer server lists, and updates the streaming media buffer server information, including the current program name including the streaming media buffer server. , program ID, program buffer data; _P 2p management server to communicate with the main management server, report the server seed information, including ip, program buffer data, seed type; client first login to the login server, login server according to current load of all _P 2p management server, select the number of _P 2p under a management server to the server ip, port back to the client and log in to the seed node p2p management server. [5] After using the above scheme, the main management server actually receives the address and program list of the buffer server and updates to the _P 2p management server. The login server can monitor the load of the P2P management server, and the client selects the login server through the login server. The P2P management server with smaller load acquires the buffer server address program list and logs in to the buffer server; since the buffer server and the _P 2p management server are multiple, the main management server simply sends the list to the _P 2p management server, and the schedule is logged in through the server. The client selects a P2P management server with a smaller load, and can perform scheduling between multiple P2P management servers for parallel expansion, thereby effectively solving the problem of network congestion.

Country deletion

[6] Figure 1 is a structural diagram of a conventional streaming media transmission;

[7] Figure 2 is a structural view of the present invention;

[8] FIG. 3 is a flow chart of the streaming media publishing end of the present invention;

[9] Figure 4 is a flow chart of the present invention;

[10] Figure 5 is a flow chart of the landing end of the present invention.

[11] The present invention will be further described below in conjunction with the accompanying drawings.

difficult

[12] As shown in FIG. 2, the P2P streaming media live broadcast technology parallel expansion method of the present invention involves the following functional devices:

[13] I. Release device 6

[14] 1. Read streaming media data, including video stream data and file data, such as wmv stream data, Real stream data.

[15] 2. Pack each stream packet, such as asf stream packet or rawb stream packet. If the system needs to encrypt, encrypt each stream packet and receive it on client 5 (super seed). The data is decrypted.

[16] 3. To send a data packet to the streaming media buffer server 2, for example, to send 1 second of streaming media data every 1 second, and 1 second may contain multiple streaming media packets.

[17] Second, streaming media buffer server 2

[18] 1. Buffer a certain amount of streaming media data, such as buffering 1 minute of streaming media data. The data saved by the streaming media buffer server 2 is the first source of data acquired by the node in the p2p live broadcast system. Client 5 (super species Sub) First, the streaming media data is obtained from the streaming media buffer server 2, and then the streaming media data is transmitted through the p2p transmission.

[19] 2, synchronous streaming media data, according to the publishing device 6 to release streaming media data, to determine the streaming media data in the streaming media buffer server 2, for example, buffer 60 seconds of data, (60 can be adjusted according to system needs), when The publishing device 6 has new data coming, and the streaming media buffer server 2 covers the oldest data, so that the current latest 60 seconds of streaming media data can be maintained.

[20] 3, return p2p node connection request streaming media data, for example, the p2p node requests the 4th second of the data, then returns the 4th second of the streaming media data to the seed node.

[21] Third, p2p management server 4

[22] 1. Manage all seeds. Each seed in the p2p system needs to log in to one of the p2p management servers in the system.

[23] 2. Select super seed from all the seeds. In the system, the main management server 1 selects the best top N seeds as super seeds according to the seed network speed, including the uplink speed and the downlink speed, and the super seed directly from the streaming media. The buffer server 2 reads the streaming media data and simultaneously transmits the streaming media data to other seeds.

[24] 3. Communicate with the primary management server 1, and update the list of streaming media buffer servers. When there are multiple streaming media buffer servers 2, the p2p management server 4 returns the registration information of the streaming media buffer server 2 according to the seed node request, including ip, port. Thus, the seed node can obtain the information of the streaming media buffer server 2 from the p2p server 4, and connect to the streaming media buffer server 2 to obtain the streaming media data.

[25] Fourth, the main management server 1

[26] 1, manage all p2p management server 4, p2p management server 4 fixed and main management server 1 communication

Report the seed information of the server, including ip, program buffer data, seed type including super seed, non-super seed.

[27] 2. Manage all the streaming media buffer server 2 lists. When there are multiple streaming media buffer servers 2, the main management server 1 saves all the streaming media buffer server 2 lists, and updates the streaming media buffer server 2 information. And the information of the streaming media buffer server 2 is updated to the p2p server 4, including the current program name of the streaming media buffer server 2, the program ID, and the data of the program buffer.

[28] V. Stun Server 7

[29] 1. Responsible for testing the seed node Nat type, client 5 sends a NAT test request through UDP protocol, guest When the traditional UDP packet of the client 5 reports its own intranet IP, the Stun server 7 determines the NAT type according to the external network IP and the intranet IP of the client 5UPD packet.

[30] Six, login server 3

[31] 1. Responsible for login load balancing. When the number of login users is too large, multiple _P 2p management servers 4 are required. Client 5 first logs in to login server 3, and login server 3 is based on all current p2p management servers 4. In the case of load, a p2p management server 4 whose number is not full is selected, and the ip and port of the server are returned to the seed node, and the client 5 node logs in to the p2p management server 4, thereby achieving load balancing of the multi-p2p management server 2.

As shown in FIG. 3 to FIG. 5, the streaming media publishing source registers the program information with the plurality of streaming media buffer servers 2, and then sends the streaming media data to the streaming media buffer server 2, and the streaming media buffer server 2 logs in to the main server. After the management server 1 registers the streaming media information list; the main management server 1 saves the list of all the streaming media buffer servers 2, and updates the streaming media buffer server 2 information, which includes the current program name of the streaming media buffer server 2, the program ID, Program buffer data; p2p management server 4 determines to communicate with the main management server 1, reports the server seed information, including ip, program buffer data, seed type; client 5 first logs in to the login server 3, the login server 3 is based on For the current load status of all p2p management servers 4, a p2p management server 4 whose number is not full is selected, and the ip and port of the server are returned to the client 5 seed node, and the client 5 seed node logs in to the p2p management server 4.

Claims

Claim

[1] 1. A parallel expansion method for P2P streaming media live broadcast technology, wherein: the streaming media publishing source registers program information with a plurality of streaming media buffer servers, and then sends streaming media data to the streaming media buffer server. buffer media server login to register the streaming media server management information list after the master; the master management server stores a list of all of the streaming media server buffers, buffer set inch streaming server information update; _P 2p inch given management server and the management server communicate with the master, Report the seed information of the server; the client first logs in to the login server, and the login server selects a p2p management server whose number is not full according to the current load status of all p2p management servers, and returns the ip and port of the server to the client seed node. Log in to the p2p management server.

[2] The parallel expansion method of the P2P streaming media live broadcast technology according to claim 1, wherein: the streaming media buffer server information includes a current program name of the streaming media buffer server, a program ID, and a program buffered data. .

[3] 3. An extended parallel P2P streaming media broadcast method of claim technology, wherein: _P 2p includes IP information management server, the program data buffer number, the type of seed.