CN102572530A - Streaming media business adjusting method and system - Google Patents

Abstract

The present invention discloses a streaming media service channel adjustment method and system, wherein, the method includes: a CDN node agent of a content distribution network collects statistics on channel request information of a user terminal reported by a streaming media server to which it belongs, and Report the statistical result to the CDN node manager; the CDN node manager adjusts the channel on the streaming media server according to the statistical result. The present invention can dynamically adjust the channel on the streaming media server according to the status of the channel requested by the user terminal, and can dynamically adjust the access load of the streaming media server according to the number of user terminals accessing the streaming media server. The solution is more suitable for unspecific network users, and can dynamically adjust channel distribution according to user needs, providing users with better streaming media services.

Description

Streaming media service channel adjustment method and system

technical field

The streaming media access technology of the present invention particularly relates to a method and system for adjusting a streaming media service channel.

Background technique

The upgrade of telecom enterprise network infrastructure and the improvement of service bandwidth have made it possible to provide a variety of audio and video services based on existing fixed and mobile networks. Streaming media technology provides a way to transmit media content in the network. It can encode continuous images and sounds and store them on the server, allowing users to watch while downloading, without waiting for the entire file to be downloaded to the local terminal. Can watch. Since the streaming media technology avoids interruption of video services and improves user experience, it has been widely used in multimedia service systems. Currently, the live channel service in the network TV service system provides services for user terminals in the form of streaming media.

In the IPTV service system, the service nodes are usually networked according to the regional hierarchical structure. Each node includes a content distribution network (CDN, Content Delivery Network) proxy and several streaming media servers. All nodes are managed by a centralized The CDN node manager manages and maintains it. System operation and maintenance personnel create channels on service nodes in advance according to node hardware configuration or service planning, introduce live streams, and provide audio and video live broadcast services for users belonging to the node. The limitation of this method is that channels need to be added and deleted manually, and the maintenance workload is large, and it cannot be adjusted dynamically according to the load of nodes in the system; if the channel management workload is reduced, the system service All channels supported by the system are imported into all streaming media servers of the node. Since the channels consume resources such as the transcoding capability of the streaming media server, this may lead to waste of media service resources or excessive pressure on nodes.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a streaming media service channel adjustment method and system, which can dynamically adjust the channel on the streaming media server according to the status of the channel requested by the user terminal, and can adjust the channel according to the access streaming media The number of user terminals on the server can dynamically adjust the access load of the streaming media server.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A streaming media service channel adjustment method, comprising:

The CDN node agent performs statistics on the channel request information of the user terminal reported by the streaming media server to which it belongs, and reports the statistical results to the CDN node manager;

The CDN node manager adjusts the channels on the streaming media server according to the statistical results.

Preferably, the CDN node manager adjusts the channel on the streaming media server according to the statistical result, which is:

When the CDN node manager determines that the number of requests for a channel reaches a set threshold, the channel is created for each streaming server;

And/or, when the CDN node manager determines that the number of user terminals requesting a certain channel reaches a set threshold, create the channel for each streaming media server;

And/or, when the CDN node manager determines that the number of requests for a certain channel is lower than a set threshold, the channel is reserved on a streaming media server proxied by the CDN node, and other streams proxied by the CDN node are deleted Said channel on the media server.

Preferably, the CDN node manager adjusts the channel on the streaming media server according to the statistical result, which is:

The CDN node manager sends a channel creation request to the streaming media server through the CDN node agent, and the streaming media server creates the channel to be created specified in the received channel creation request;

And/or, the CDN node manager sends a channel deletion request to the streaming media server through the CDN node agent, and the streaming media server deletes the channel to be deleted specified in the received channel deletion request.

Preferably, the method also includes:

When the CDN node agent determines that the number of user terminals accessing a certain streaming media server reaches a set threshold, the user terminals that subsequently request access are connected to other streaming media servers.

Preferably, the request information for the channel includes the channel identifier, the number of requests, the number of requested user terminals, the duration of the request to access the channel, and the traffic.

A streaming media service channel adjustment system, including a CDN node agent, a streaming media server and a CDN node manager; wherein:

The streaming media server is used to report the received request information of the user terminal to the channel to the CDN node agent to which it belongs;

The CDN node agent is used to perform statistics on the obtained user terminal request information for the channel, and report the statistical results to the CDN node manager;

The CDN node manager is configured to adjust the channels on the streaming media server according to the statistical results.

Preferably, the CDN node manager is also used for,

When it is determined that the number of requests for a certain channel reaches a set threshold, the channel is created for each streaming media server;

And/or, when it is determined that the number of user terminals requesting a channel reaches a set threshold, create the channel for each streaming media server;

And/or, when it is determined that the number of requests for a certain channel is lower than the set threshold, the channel is reserved on a streaming media server proxied by the CDN node, and the channel is deleted on other streaming media servers proxied by the CDN node. channel.

Preferably, the CDN node manager is also used to send a channel creation request to the streaming media server through the CDN node agent, and the streaming media server is also used to create the channel to be created specified in the received channel creation request;

And/or, the CDN node manager is further configured to send a channel deletion request to the streaming media server through the CDN node proxy, and the streaming media server is further configured to delete the channel to be deleted specified in the received channel deletion request.

Preferably, the CDN node agent is further configured to, when it is determined that the number of user terminals accessing a certain streaming media server reaches a set threshold, connect user terminals that subsequently request access to other streaming media servers.

Preferably, the request information for the channel includes the channel identifier, the number of requests, the number of requested user terminals, the duration of the request to access the channel, and the traffic.

In the present invention, the streaming media server reports the received user terminal request information to the channel to the CDN node agent to which it belongs; the CDN node agent performs statistics on the obtained user terminal request information to the channel, and reports the statistical results to the CDN node manager; the CDN node manager adjusts the channels on the streaming media server according to the statistical results. When the CDN node agent determines that the number of user terminals accessing a certain streaming media server reaches a set threshold, the subsequent user terminals requesting access are connected to other streaming media servers. The present invention can dynamically adjust the channel on the streaming media server according to the status of the channel requested by the user terminal, and can dynamically adjust the access load of the streaming media server according to the number of user terminals accessing the streaming media server. The solution is more suitable for unspecific network users, and can dynamically adjust channel distribution according to user needs, providing users with better streaming media services.

Description of drawings

Fig. 1 is the composition structure schematic diagram of the stream media service channel adjustment system of the embodiment of the present invention;

Fig. 2 is the flow chart that the stream media server that the present invention implements provides stream media service;

FIG. 3 is a flow chart of reporting channel service statistics information implemented in the present invention;

Fig. 4 is a flow chart of channel adjustment by the CDN node manager implemented in the present invention.

Detailed ways

The basic idea of the present invention is: the streaming media server reports the received request information of the user terminal to the channel to the CDN node agent to which it belongs; The result is reported to the CDN node manager; the CDN node manager adjusts the channel on the streaming media server according to the statistical result. When the CDN node agent determines that the number of user terminals accessing a certain streaming media server reaches a set threshold, the subsequent user terminals requesting access are connected to other streaming media servers.

In order to make the purpose, technical solutions and advantages of the present invention more clear, the following examples are given and the accompanying drawings are given to further describe the present invention in detail.

Fig. 1 is the constituent structural representation of the streaming media service channel adjustment system of the embodiment of the present invention, as shown in Figure 1, the streaming media service channel adjustment system of the embodiment of the present invention comprises user access unit (UAU, UserAccess Unit), CDN node Manager (CDN Manager), CDN node and user terminal (identified as UE in the figure, User Equipment), in which the CDN node includes a CDN node agent (CDNAgent) and two streaming media servers (SS1, SS2, SS is Streaming Server) . Wherein, the user access unit stores program list information of channels that can provide streaming media on the streaming media server, and the user terminal accesses the streaming media server through the user access unit. The CDN node agent is used to manage the streaming media servers in the CDN node, and balance the number of users connected to each streaming media server, so as to realize streaming media distribution. Those skilled in the art should understand that FIG. 1 is only an exemplary schematic diagram, and there may be more than three streaming media servers in one CDN node.

In the present invention, the media redirection interaction between the user terminal and the CDN node agent, and the media negotiation interaction between the user terminal and the streaming media server are all realized by using a real-time streaming protocol (RTSP, Real-Time Streaming Protocol); for The media data transmission between the streaming media server and the user terminal is realized by using the Real-Time Transport Protocol (RTP, Real-Time Transport Protocol) and the Real-Time Transport Control Protocol (RTCP, Real-Time Transport Control Protocol); The access control and media resource browsing interaction between the input units is realized by using the hypertext transfer protocol (HTTP, HyperText Transfer Protocol); the reporting of the channel request information by the user terminal and the delivery of the channel adjustment message are carried out through the transmission control protocol ( TCP, TransmissionControl Protocol) to achieve. Those skilled in the art should understand that the above-mentioned protocols are commonly used communication protocols in the field, and it is easy to realize the information exchange between the above-mentioned network elements, and the present invention will not repeat the implementation details thereof.

Specifically, the streaming media server is configured to report the received request information of the user terminal for the channel to the CDN node agent to which it belongs;

The CDN node agent is used to perform statistics on the obtained user terminal request information for the channel, and report the statistical results to the CDN node manager;

The CDN node manager is configured to adjust the channels on the streaming media server according to the statistical results.

Wherein, the CDN node manager is also used for,

When it is determined that the number of requests for a certain channel reaches a set threshold, the channel is created for each streaming media server;

And/or, when it is determined that the number of user terminals requesting a channel reaches a set threshold, create the channel for each streaming media server;

And/or, when it is determined that the number of requests for a certain channel is lower than the set threshold, the channel is reserved on a streaming media server proxied by the CDN node, and the channel is deleted on other streaming media servers proxied by the CDN node. channel.

The above-mentioned CDN node manager is also used to send a channel creation request to the streaming media server through the CDN node proxy, and the streaming media server is also used to create the channel to be created specified in the received channel creation request;

And/or, the CDN node manager is further configured to send a channel deletion request to the streaming media server through the CDN node agent, and the streaming media server is further configured to delete the channel to be deleted specified in the received channel deletion request.

Wherein, the CDN node agent is further configured to, when determining that the number of user terminals accessing a certain streaming media server reaches a set threshold, connect the subsequent user terminals requesting access to other streaming media servers.

The above request information for a channel includes, but is not limited to: channel identifier, number of requests, number of requested user terminals, duration of request to access the channel, and traffic.

Fig. 2 is the flow chart that the stream media server that the present invention implements provides stream media service, as shown in Fig. 2, the flow process that the stream media server of this example provides stream media service comprises the following steps:

Step 201, the user terminal initiates a login request to the user access unit, and logs into the streaming media service channel adjustment system of the present invention after a series of authentications such as identity authentication and service authentication;

Step 202, the user access unit returns the electronic program list in itself to the user terminal, and the user obtains the channel list of the corresponding streaming media;

Step 203, the user terminal checks the channel list information provided by the user access unit through the built-in browser, selects the channel to watch and requests to play streaming media, and the channel entry of the program list stored in the user access unit includes the CDN where the channel is located. The address and port information of the node proxy, the user terminal initiates a redirection request to the CDN node proxy;

Step 204, the CDN node agent performs service redirection in the node according to the channel distribution information in the node cached by itself and the performance of the streaming media server, selects a streaming media server that can serve, and returns the streaming server information to the user terminal;

Step 205, the CDN node proxy returns the stream media server information found in the redirection to the user terminal;

Step 206, the user terminal requests the streaming server to play the channel;

Step 207, media negotiation is carried out between the user terminal and the streaming media server, and the media negotiation messages involved mainly include RTSP DESCRIBE request and response, RTSP SETUP request and response, RTSPPLAY request and response, etc.; due to media negotiation and user terminal access streaming media The server is an existing technology, and it is not the key point of the technical solution of the present invention, and its implementation details will not be repeated here.

Step 208, after the media negotiation between the user terminal and the streaming media server is completed, the streaming media server starts to send channel code streaming media data to the user terminal through the RTP/RTCP protocol;

Step 209, the user stops watching the channel service, and the user terminal initiates an RTSP TEARDOWN request;

Step 210, the streaming media server stops sending channel code stream data to the user terminal.

Fig. 3 is a flow chart of reporting channel service statistical information implemented in the present invention. As shown in Fig. 3, the reporting process of channel service statistical information implemented in the present invention includes the following steps:

Step 301, the streaming media server SS1 regularly requests information about the channel to the CDN node of the node where it is located; wherein, the above-mentioned request information for the channel includes but is not limited to: channel identification, number of requests, number of requested user terminals, and requested access to the channel duration and flow rate.

Step 302, the CDN node agent replies to SS1 with a response message;

Step 303, the streaming media server SS2 regularly reports the request information of the user terminal to the channel to the CDN node agent of the node where it is located;

Step 304, the CDN node agent replies to SS2 with a response message;

Step 305, the CDN node agent summarizes the channel request information in the node;

Step 306, the CDN node agent regularly reports the statistical information of the channel request information in the node to the CDN node manager;

In step 307, the CDN node manager replies a response message to the CDN node agent.

Fig. 4 is the flowchart that the CDN node manager that the present invention implements adjusts the channel, as shown in Figure 4, the CDN node manager that the present invention implements adjusts the flow process to the channel and includes the following steps:

Step 401, the CDN node manager regularly checks the channel service status of each node;

In step 402, the CDN node manager initiates a channel adjustment command to the CDN node agent. For popular channels, ensure that they are created on all streaming media servers in the node. For less popular channels, only reserve them on a certain streaming media server in the node. , to delete channels on other streaming servers;

Step 403, the CDN node agent replies a response message to the CDN node manager;

Step 404, the CDN node agent initiates a channel adjustment request to SS1;

Step 405, SS1 replies a response message to the CDN node agent;

Step 406, the CDN node agent initiates a channel adjustment request to SS2;

Step 407, SS2 replies a response message to the CDN node agent.

The present invention can dynamically adjust the channel on the streaming media server according to the status of the channel requested by the user terminal, and can dynamically adjust the access load of the streaming media server according to the number of user terminals accessing the streaming media server. The solution is more suitable for unspecific network users, and can dynamically adjust channel distribution according to user needs, providing users with better streaming media services.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (10)

1. streaming media service channel method of adjustment is characterized in that said method comprises:

Content distributing network CDN node-agent to obtain the user terminal that the streaming media server under self reports the solicited message of channel added up, and statistics is reported the CDN node manager;

Said CDN node manager is adjusted according to the channel on the said statistics convection media server.

2. method according to claim 1 is characterized in that, said CDN node manager is adjusted according to the channel on the said statistics convection media server, for:

When the definite request number of times to certain channel of said CDN node manager reaches setting threshold, for each streaming media server is created said channel;

And/or, when the definite requesting users terminal quantity to certain channel of said CDN node manager reaches setting threshold, for each streaming media server is created said channel;

And/or; When the definite request number of times to certain channel of said CDN node manager is lower than setting threshold; On a streaming media server of said CDN node-agent, keep said channel, delete the said channel on other streaming media servers of said CDN node-agent.

3. method according to claim 2 is characterized in that, said CDN node manager is adjusted according to the channel on the said statistics convection media server, for:

Said CDN node manager sends the channel creation request through the CDN node-agent to streaming media server, and said streaming media server is created the channel to be created of appointment in the channel creation request that is received;

And/or said CDN node manager sends channel deletion request through the CDN node-agent to streaming media server, the channel to be deleted of appointment in the channel deletion request that said streaming media server deletion is received.

4. method according to claim 1 is characterized in that, said method also comprises:

When the CDN node-agent confirmed that the quantity of the user terminal of certain streaming media server of access reaches setting threshold, the user terminal that request is afterwards inserted was linked into other streaming media servers.

5. according to each described method of claim 1 to 4, it is characterized in that said solicited message to channel comprises that channel identication, request number of times, requesting users terminal quantity, request insert lasting duration, the flow of channel.

6. a streaming media service channel Adjustment System is characterized in that, said system comprises CDN node-agent, streaming media server and CDN node manager; Wherein:

Streaming media server is used for the user terminal that receives is reported the CDN node-agent under self to the solicited message of channel;

The CDN node-agent is used for the user terminal that is obtained is added up the solicited message of channel, and statistics is reported the CDN node manager;

The CDN node manager is used for adjusting according to the channel on the said statistics convection media server.

7. system according to claim 6 is characterized in that, said CDN node manager also is used for,

When definite request number of times to certain channel reaches setting threshold, for each streaming media server is created said channel;

And/or, when definite requesting users terminal quantity to certain channel reaches setting threshold, for each streaming media server is created said channel;

And/or, when confirming that request number of times to certain channel is lower than setting threshold, on a streaming media server of said CDN node-agent, keep said channel, delete the said channel on other streaming media servers of said CDN node-agent.

8. system according to claim 7; It is characterized in that; Said CDN node manager also is used for sending the channel creation request through the CDN node-agent to streaming media server, and said streaming media server also is used for, and creates the channel to be created of appointment in the channel creation request that is received;

And/or said CDN node manager also is used for, and sends channel deletion request through the CDN node-agent to streaming media server, and said streaming media server also is used for, the channel to be deleted of appointment in the channel deletion request that deletion is received.

9. system according to claim 6; It is characterized in that; Said CDN node-agent also is used for, and when definite quantity that inserts the user terminal of certain streaming media server reached setting threshold, the user terminal that request is afterwards inserted was linked into other streaming media servers.

10. according to each described system of claim 6 to 9, it is characterized in that said solicited message to channel comprises that channel identication, request number of times, requesting users terminal quantity, request insert lasting duration, the flow of channel.

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