CN111641845A - Streaming media cluster control system and method - Google Patents

Streaming media cluster control system and method Download PDF

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Publication number
CN111641845A
CN111641845A CN202010427122.4A CN202010427122A CN111641845A CN 111641845 A CN111641845 A CN 111641845A CN 202010427122 A CN202010427122 A CN 202010427122A CN 111641845 A CN111641845 A CN 111641845A
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China
Prior art keywords
data stream
streaming media
server
request message
media server
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CN202010427122.4A
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Chinese (zh)
Inventor
汪旭
刘驹
王玉杰
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Beijing Sankuai Online Technology Co Ltd
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Beijing Sankuai Online Technology Co Ltd
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Priority to CN202010427122.4A priority Critical patent/CN111641845A/en
Publication of CN111641845A publication Critical patent/CN111641845A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/226—Characteristics of the server or Internal components of the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23103—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion using load balancing strategies, e.g. by placing or distributing content on different disks, different memories or different servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26291—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for providing content or additional data updates, e.g. updating software modules, stored at the client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The present disclosure relates to a streaming media cluster control system and method, wherein a load balancing server is responsible for receiving a data stream request message sent by a terminal and forwarding the data stream request message to a first streaming media server; the first streaming media server sends a data stream transmission message to the trunking control server according to the data stream request message, and the trunking control server may control the first streaming media server to receive a target data stream sent by the terminal under the condition that the data stream request message includes a stream pushing request message, and control the first streaming media server to push the target data stream requested by the stream pulling request message to the terminal under the condition that the data stream request message includes a stream pulling request message. Therefore, for a load balancing server and a streaming media server cluster with any architecture, data stream transmission between the streaming media server and a terminal can be controlled through the cluster control server, so that the scalability and the portability of the streaming media cluster control system are higher.

Description

Streaming media cluster control system and method
Technical Field
The present disclosure relates to the field of multimedia technologies, and in particular, to a streaming media cluster control system and method.
Background
The streaming media service system can provide live video and on-demand services for users through a network, and can provide live video or on-demand services for users through a single streaming media server under the condition of small user quantity. With the rapid increase of user quantity and the expansion of user areas, the service capability of a single streaming media server cannot meet the requirements of large user quantity and large user areas.
In the related technology, live broadcast or on-demand service can be provided for a large user amount and a large user area through a streaming media server cluster, wherein a corresponding streaming media server can be selected to provide service for a user through a load balancing server according to the load condition of each streaming media server in the streaming media server cluster. However, since there are many media service transmission protocols and the backend architecture is diverse, a corresponding load balancing server and a streaming media server cluster need to be configured for each streaming media service system, resulting in poor scalability and portability of the streaming media server cluster.
Disclosure of Invention
In order to solve the above problem, the present disclosure provides a streaming media cluster control system and method.
In a first aspect, the present disclosure provides a streaming media cluster control system, where the system includes:
the system comprises a load balancing server, a streaming media server cluster and a cluster control server, wherein the streaming media server cluster comprises a plurality of streaming media servers which are respectively connected with the load balancing server and the cluster control server;
the load balancing server is configured to receive a data stream request message sent by a terminal, and forward the data stream request message to a first streaming media server, where the first streaming media server is any one of the multiple streaming media servers, and the data stream request message includes a push stream request message or a pull stream request message;
the first streaming media server is configured to send a data stream transmission message to the trunking control server according to the data stream request message when receiving the data stream request message sent by the load balancing server;
the cluster control server is configured to control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes the stream pushing request message, and control the first streaming media server to push the target data stream requested by the stream pulling request message to the terminal when the data stream request message includes the stream pulling request message.
Optionally, the cluster control server is further configured to determine whether the pull request message requesting the target data stream through the first streaming media server exists when the data stream request message includes the push request message, and control the first streaming media server to push the target data stream according to the pull request message when the pull request message requesting the target data stream through the first streaming media server exists.
Optionally, the cluster control server is further configured to determine whether there is the pull stream request message requesting the target data stream through a second streaming server, where the second streaming server includes at least one streaming server of the plurality of streaming servers except the first streaming server, and control the first streaming server to push the target data stream to the second streaming server if it is determined that there is the pull stream request message requesting the target data stream through the second streaming server.
Optionally, the cluster control server is further configured to, in a case that the data stream request message includes the pull stream request message, determine, according to the data stream transmission message, whether the target data stream requested by the pull stream request message is stored on the first streaming media server, and in a case that it is determined that the target data stream is stored on the first streaming media server, control the first streaming media server to push the target data stream to the terminal.
Optionally, the cluster control server is further configured to, when it is determined that the target data stream is not stored on the first streaming media server, obtain a third streaming media server storing the target data stream in the multiple streaming media servers, and control the third streaming media server to push the target data stream to the first streaming media server;
the first streaming media server is further configured to push the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server.
In a second aspect, the present disclosure provides a streaming media cluster control method, which is applied to a cluster control server in a streaming media cluster control system, where the streaming media cluster control system includes a load balancing server, a streaming media server cluster and the cluster control server, the streaming media server cluster includes a plurality of streaming media servers, and the plurality of streaming media servers are respectively connected to the load balancing server and the cluster control server; the method comprises the following steps:
under the condition that a first streaming media server receives a data stream request message sent by the load balancing server, receiving a data stream transmission message sent by the first streaming media server according to the data stream request message, wherein the first streaming media server is any one of a plurality of streaming media servers, and the data stream request message comprises a push stream request message or a pull stream request message;
and under the condition that the data stream request message comprises the stream pushing request message, controlling the first stream media server to receive a target data stream sent by a terminal, and under the condition that the data stream request message comprises the stream pulling request message, controlling the first stream media server to push the target data stream requested by the stream pulling request message to the terminal.
Optionally, in a case that the data flow request message includes the push flow request message, the method further includes:
determining whether the pull stream request message requesting the target data stream through the first streaming media server exists;
and controlling the first streaming media server to push the target data stream according to the pull stream request message when the pull stream request message requesting the target data stream through the first streaming media server is determined to exist.
Optionally, the method further comprises:
determining whether the pull stream request message requesting the target data stream through a second streaming server exists, the second streaming server including at least one streaming server of the plurality of streaming servers other than the first streaming server;
controlling the first streaming media server to push the target data stream to the second streaming media server if it is determined that the pull stream request message requesting the target data stream through the second streaming media server exists.
Optionally, the controlling the first streaming media server to push the target data stream requested by the pull stream request message to the terminal includes:
determining whether the target data stream requested by the pull stream request message is stored on the first streaming media server according to the data stream transmission message;
and controlling the first streaming media server to push the target data stream to the terminal under the condition that the target data stream is determined to be stored on the first streaming media server.
Optionally, the method further comprises:
under the condition that the target data stream is not stored on the first streaming media server, acquiring a third streaming media server which stores the target data stream in a plurality of streaming media servers;
and controlling the third streaming media server to push the target data stream to the first streaming media server, so that the first streaming media server pushes the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server.
Through the technical scheme, after receiving a data stream request message sent by a terminal, a load balancing server in the streaming media cluster control system forwards the data stream request message to a first streaming media server, wherein the first streaming media server is any one of a plurality of streaming media servers, and here, a load balancer does not need to determine the streaming media server receiving the data stream request message according to the data stream request message, but forwards the data stream request message to any one of the streaming media servers, and based on the situation, the streaming media cluster control system can be applied to any type of load balancing servers; further, the first streaming media server sends a data stream transmission message to the cluster control server according to the data stream request message, and the cluster control server may control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes a push stream request message, and control the first streaming media server to push the target data stream requested by the push stream request message to the terminal when the data stream request message includes a pull stream request message. That is to say, the load balancing server only needs to forward the received data stream request message to any one of the streaming media servers in the streaming media server cluster, and does not need to determine the streaming media server capable of receiving the data stream request message according to the data stream request message, so that for the load balancing server and the streaming media server cluster of any architecture, data stream transmission between the streaming media server and the terminal can be controlled through the cluster control server, and therefore dependence of the streaming media cluster control system on the load balancing server and a data stream transmission protocol can be avoided, and the extensibility and portability of the streaming media cluster control system are higher.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural diagram illustrating a streaming media cluster control system according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating data streaming according to an exemplary embodiment;
FIG. 3 is another data streaming schematic shown in accordance with an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating a data flow state switching in accordance with an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating a data flow state update in accordance with an illustrative embodiment;
FIG. 6 is a second data flow state update schematic shown in accordance with an exemplary embodiment;
FIG. 7 is a third data flow state update schematic shown in accordance with an exemplary embodiment;
FIG. 8 is a fourth data flow state update schematic shown in accordance with an exemplary embodiment;
fig. 9 is a flowchart illustrating a streaming media cluster control method according to an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the description that follows, the terms "first," "second," and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance nor order to be construed.
First, an application scenario of the present disclosure will be explained. The method and the device can be applied to a monitoring system, in the monitoring system, the monitoring camera sends the recorded multimedia data stream to a streaming media server, and a user can play the multimedia data stream through a terminal, wherein the process that the monitoring camera sends the multimedia data stream to the streaming media server is pushing stream, and the process that the terminal obtains the multimedia data stream from the streaming media server when the user plays the multimedia data stream through the terminal is pulling stream. Here, the user may live view the multimedia data stream recorded by the monitoring camera of the monitoring system in real time, or request to review the multimedia data stream recorded by the monitoring camera, and there may be a plurality of terminals requesting live broadcast or request to live broadcast the multimedia data stream. Under the condition of small user quantity, the service capability of a single streaming media server can meet the requirements of a plurality of users; when the number of users is large, the service capability of a single streaming media server cannot meet the requirements of the multiple users.
In the related technology, live broadcast or on-demand service can be provided for a large user amount and a large user area through a streaming media server cluster, the streaming media server cluster can comprise a plurality of streaming media servers, and a corresponding streaming media server is selected to provide service for a user through a load balancing server according to the load condition of each streaming media server in the streaming media server cluster. Therefore, the load balancing server needs to periodically obtain the load condition of each streaming media server, and therefore, when a streaming media server cluster is established, the load balancing server needs to be correspondingly adapted, which results in poor expandability and portability of the streaming media server cluster.
In order to solve the above problems, the present disclosure provides a streaming media cluster control system and method, where the streaming media cluster control system includes a load balancing server, a streaming media server cluster, and a cluster control server, where the streaming media server cluster includes a plurality of streaming media servers, the plurality of streaming media servers are respectively connected to the load balancing server and the cluster control server, the load balancing server is responsible for receiving a data stream request message sent by a terminal and forwarding the data stream request message to a first streaming media server, and the first streaming media server is any one of the plurality of streaming media servers; further, the first streaming media server sends a data stream transmission message to the cluster control server according to the data stream request message, and the cluster control server may control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes a push stream request message, and control the first streaming media server to push the target data stream requested by the push stream request message to the terminal when the data stream request message includes a pull stream request message. That is to say, the load balancing server only needs to forward the received data stream request message to any one of the streaming media servers in the streaming media server cluster, and does not need to determine the streaming media server capable of receiving the data stream request message according to the data stream request message, so that for the load balancing server and the streaming media server cluster of any architecture, data stream transmission between the streaming media server and the terminal can be controlled through the cluster control server, and therefore dependence of the streaming media cluster control system on the load balancing server and a data stream transmission protocol can be avoided, and the extensibility and portability of the streaming media cluster control system are higher.
Fig. 1 is a schematic structural diagram illustrating a streaming media cluster control system according to an exemplary embodiment. As shown in fig. 1, the streaming media cluster control system 100 includes: the system comprises a load balancing server 101, a streaming media server cluster 102 and a cluster control server 103, wherein the streaming media server cluster 102 comprises a plurality of streaming media servers, and the plurality of streaming media servers are respectively connected with the load balancing server 101 and the cluster control server 103;
the system comprises a load balancing server 101, a first streaming media server 1021, a second streaming media server 1021, a first server, a second server and a third server, wherein the load balancing server 101 is used for receiving a data stream request message sent by a terminal and forwarding the data stream request message to the first streaming media server 1021, the first streaming media server 1021 is any one of a plurality of streaming media servers, and the data stream request message comprises a stream pushing request message or a stream pulling request message;
a first streaming media server 1021, configured to send a data stream transmission message to the cluster control server 103 according to a data stream request message sent by the load balancing server 101 when receiving the data stream request message;
the cluster control server 103 is configured to control the first streaming media server 1021 to receive a target data stream sent by a terminal if the data stream request message includes a push stream request message, and control the first streaming media server 1021 to push the target data stream requested by the pull stream request message to the terminal if the data stream request message includes a pull stream request message.
The load balancing server 101 may be a load balancing server, the load balancing server 101 may also be a plurality of load balancing servers, for example, the load balancing server 101 may include a push flow load balancing server and a pull flow load balancing server, the push flow load balancing server is configured to receive a push flow request message sent by a terminal, and the pull flow load balancing server is configured to receive a pull flow request message sent by a terminal.
After receiving a data stream request message sent by a terminal, the load balancing server 101 may send the data stream request message to the first streaming media server 1021, where the data stream request message may include a terminal identifier of the terminal that sent the data stream request message, a data stream identifier of a target data stream requested to be transmitted by the data stream request message, and a request type, where the request type may be a push stream type or a pull stream type. And if the request type is a push flow type, the data flow request message is a push flow request message, and if the request type is a pull flow type, the data flow request message is a pull flow request message. The first streaming media server 1021 may be a streaming media server randomly selected by the load balancing server 101 from the streaming media server cluster 102, or may be a streaming media server selected by the load balancing server 101 from the streaming media server cluster 102 in a round-robin manner, for example, if the streaming media server cluster 102 includes a streaming media server a, a streaming media server B, a streaming media server C, and a streaming media server D, the load balancing server 101 may send a received first data streaming request message to the streaming media server a, send a received second data streaming request message to the streaming media server B, send a received third data streaming request message to the streaming media server C, send a received fourth data streaming request message to the streaming media server D, and sending the received fifth data stream request message to the streaming media server A, and so on, so that selecting the streaming media server in a rotation mode can avoid selecting the same streaming media server for multiple times within a period of time, which causes too large load of the streaming media server.
After receiving the data stream request message sent by the load balancer 101, the first streaming media server 1021 may send a data stream transmission message to the cluster control server 103 according to the data stream request message, where the data stream transmission message may include a terminal identifier of a terminal that sent the data stream request message, a data stream identifier of a target data stream requested to be transmitted by the data stream request message, a request type, and a server identifier of the first streaming media server 1021.
After receiving the data streaming message sent by the first streaming media server 1021, the cluster control server 103 may verify the identity of the terminal according to the data streaming message, and determine whether to allow the terminal to perform data streaming with the streaming media server cluster 102. In a possible implementation manner, the cluster control server 103 may determine, according to the terminal identifier, whether the terminal belongs to a preset terminal that allows data streaming with the streaming media server cluster 102, and if it is determined that the terminal belongs to a preset terminal that allows data streaming with the streaming media server cluster 102, send an authentication response message to the first streaming media server 1021; if the terminal is determined not to belong to the preset terminal which allows data stream transmission with the streaming media server cluster 102, a transmission refusing message is sent to the first streaming media server 1021.
For example, for the monitoring system of company a, in order to ensure the security of the system, an identifier of a monitoring camera that allows pushing a stream to the streaming media server cluster 102 of the monitoring system and an identifier of a viewing end that allows requesting a stream to the streaming media server cluster 102 of the monitoring system may be preset. After receiving the authentication request message sent by the first streaming media server 1021, the trunking control server 103 may determine whether the terminal belongs to a preset identifier of a monitoring camera or a preset identifier of a viewing end according to a terminal identifier. If the terminal is determined to belong to the preset identification of the monitoring camera or the preset identification of the watching end, an authentication response message is sent to the first streaming media server 1021; if the terminal is determined not to belong to the preset identification of the monitoring camera or the preset identification of the watching end, a transmission refusing message is sent to the first streaming media server 1021.
It should be noted that, a terminal identifier of a terminal corresponding to a push stream type and a terminal identifier of a terminal corresponding to a pull stream type that allow the streaming media server cluster 102 to perform data streaming may also be preset, so that after receiving the authentication request message sent by the first streaming media server 1021, the cluster control server 103 may determine whether to allow the streaming media server cluster 102 to perform data streaming with the terminal according to the terminal identifiers and the request types. For example, for the monitoring system of company a, in the case that the request type is a push streaming request, the trunking control server 103 may determine whether the terminal belongs to the identifier of the preset monitoring camera according to the terminal identifier, and in the case that the terminal is determined to belong to the identifier of the preset monitoring camera, send an authentication response message to the first streaming media server 1021; in case that the request type is a pull stream request, the cluster control server 103 may determine whether the terminal belongs to a preset identifier of a viewing end according to the terminal identifier, and send an authentication response message to the first streaming media server 1021 in case that it is determined that the terminal belongs to the preset identifier of the viewing end.
After receiving the transmission rejection message sent by the trunking control server 103, the first streaming media server 1021 may send a rejection request message to the terminal according to the terminal identifier in the data flow request message. After receiving the authentication response message sent by the trunking control server 103, the first streaming media server 1021 may establish a connection with the terminal according to the terminal identifier in the data stream request message.
In the case that the data stream request message is a push stream request message, the first streaming media server 1021 may receive a target data stream sent by the terminal after receiving the authentication response message sent by the trunking control server 103 and establishing a connection with the terminal. In addition, the first streaming media server 1021 may send a reception confirmation message to the cluster control server 103 when starting to receive the target data stream or completing the reception of the target data stream, and the cluster control server 103 may update the data stream association relationship after receiving the reception confirmation message, where the data stream association relationship may include a correspondence relationship between the data stream identifier and the streaming media server identifier.
In the case that the data stream request message is a push stream request message, it needs to consider a case that the first streaming server 1021 receives a pull stream request message for the target data stream at the same time, and a case that other streaming servers in the streaming server cluster 102 receive a pull stream request message for the target data stream. The processing for these two cases is described in detail below.
In a case where the data stream request message is a push stream request message, the cluster control server 103 may determine whether there is a pull stream request message requesting a target data stream through the first streaming server 1021, and in a case where it is determined that there is a pull stream request message requesting the target data stream through the first streaming server 1021, control the first streaming server 1021 to push the target data stream according to the pull stream request message. That is to say, before receiving the push stream request message sent by the load balancing server 101, the first streaming media server 1021 receives the pull stream request message sent by the load balancing server 101, that is, the pull stream request message requests the target data stream sent by the first streaming media server 1021, and the target data stream received by the first streaming media server 1021 is the same as the target data stream requested by the push stream request message, in this case, the first streaming media server 1021 may be controlled to receive the target data stream and send the target data stream to the terminal corresponding to the pull stream request message at the same time.
For example, fig. 2 is a schematic data streaming transmission diagram shown according to an exemplary embodiment, as shown in fig. 2, a load balancing server 101 first receives a pull request message sent by a terminal a, where the pull request message is used to request to acquire a target data stream, the load balancing server 101 forwards the pull request message to a first streaming media server 1021, and then, the load balancing server 101 receives a push request message sent by a terminal B and a terminal C, where the push request message is used to request to store the target data stream, and the load balancing server 101 forwards the push request message to the first streaming media server 1021. That is, the first streaming server 1021 receives the pull request message sent by the terminal a and the push request messages sent by the terminals B and C successively. In this case, the cluster control server 103 may send a stream pushing instruction to the first streaming media server 1021, and after receiving the stream pushing instruction, the first streaming media server 1021 may send the target data stream to the terminal a after receiving the target data streams sent by the terminals B and C. Therefore, the terminal sending the pull stream request can be prevented from waiting too long to cause abnormal playing of the terminal.
In addition, in a case where the data stream request message includes a push stream request message, the cluster control server 103 may further determine whether there is a pull stream request message requesting the target data stream through a second streaming server 1022, where the second streaming server 1022 includes at least one of the streaming servers except the first streaming server 1021, and in a case where it is determined that there is a pull stream request message requesting the target data stream through the second streaming server 1022, control the first streaming server 1021 to push the target data stream to the second streaming server 1022. That is to say, before the first streaming media server 1021 receives the push stream request message sent by the load balancing server 101, the second streaming media server 1022 receives the pull stream request message sent by the load balancing server 101, where the pull stream request message requests the target data stream sent by the second streaming media server 1022, and the target data stream received by the first streaming media server 1021 is the same as the push stream request message. In this case, the first streaming media server 1021 may be controlled to receive the target data stream and push the target data stream to the second streaming media server 1022.
Illustratively, fig. 3 is a schematic diagram illustrating another data stream transmission according to an exemplary embodiment, as shown in fig. 3, a pull stream load balancing server receives a pull stream request message sent by a terminal a, where the pull stream request message is used to request to acquire a target data stream, and the pull stream load balancing server forwards the pull stream request message sent by the terminal a to a streaming media server a. And then, the push flow load balancing server receives a push flow request message sent by the terminal B, wherein the push flow request message is used for requesting to store the target data stream, and the push flow load balancing server forwards the push flow request message to the streaming media server B. That is, before the media server B receives the push stream request message sent by the terminal B, the streaming server a receives the pull stream request message sent by the terminal a. In this case, the cluster control server 103 may send a stream pushing instruction to the streaming server B, and the streaming server B may push the received target data stream to the streaming server a after receiving the stream pushing instruction. Therefore, the terminal sending the pull stream request can be prevented from waiting too long to cause abnormal playing of the terminal.
In case the data stream request message comprises a pull stream request message, the cluster control server 103 needs to consider the case that the target data stream requested by the pull stream request message is stored on the first streaming server 1021, and the case that the target data stream requested by the pull stream request message is not stored on the first streaming server 1021. The processing for these two cases is described in detail below.
In case that the data stream request message includes a pull stream request message, the cluster control server 103 may determine whether a target data stream requested by the pull stream request message is stored on the first streaming server 1021 according to the data stream transmission message, and in case that it is determined that the target data stream is stored on the first streaming server 1021, control the first streaming server 1021 to transmit the target data stream to the terminal. That is to say, after receiving the data streaming message sent by the first streaming media server 1021, the cluster control server 103 may determine the type of the data streaming request message according to the data streaming message, and if it is determined that the data streaming request message includes a pull streaming request message, first determine whether the target data stream requested by the pull streaming request message is stored on the first streaming media server 1021. If the target data stream requested by the pull request message is stored in the first streaming media server 1021, the first streaming media server 1021 may be controlled to push the target data stream to the terminal.
In addition, if the cluster control server 103 determines that the target data stream requested by the pull request message is not stored on the first streaming media server 1021, the cluster control server 103 may obtain a third streaming media server 1023 storing the target data stream from a plurality of streaming media servers, and control the third streaming media server 1023 to push the target data stream to the first streaming media server 1021; the first streaming media server 1021 pushes the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server 1023. The cluster control server 103 may obtain, according to the data stream identifier of the target data stream in the data stream transmission request, the third streaming media server 1023 storing the target data stream through the data stream association relationship. After acquiring the third streaming media server 1023 storing the target data stream, the cluster control server 103 may send a stream pushing instruction to the third streaming media server 1023, where the stream pushing instruction may include a data stream identifier of the target data stream and a server identifier of the first streaming media server 1021, and after receiving the stream pushing instruction sent by the cluster control server 103, the third streaming media server 1023 may send the target data stream corresponding to the data stream identifier to the first streaming media server 1021 according to the stream pushing instruction.
It should be noted that, when receiving the data stream transmission message sent by the first streaming media server 1021, the cluster control server 103 may update the state information of the target data stream, so that in the case of subsequently receiving a new stream pushing request message or a new stream pulling request message for the target data stream, all current situations of data stream requests sent for the target data stream may be accurately obtained. The state information may include an empty state, a pull state, a push state, or a push-pull state, where the empty state indicates that a push request message or a pull request message sent by a terminal for the target data stream is not currently received, the pull state indicates that at least one terminal sends a pull request message for the target data stream, the push state indicates that at least one terminal sends a push request message for the target data stream, and the push state indicates that at least one terminal sends a push request message and a pull request message for the target data stream.
Fig. 4 is a schematic diagram illustrating a data stream state switching according to an exemplary embodiment, where as shown in fig. 4, when a data stream is pushed up in a null state, i.e., a push request is added, the null state changes to a push-only state; when the data flow is increased in the empty state, namely a pull flow request is added, the empty state is changed into a pull-only state; when the data flow increases the pull in the push-only state, the push-only state is changed into the push-pull state, and when the data flow decreases the push in the push-only state, the push-only state is changed into the empty state; when the data flow is reduced in the push-pull state, the push-pull state is changed into the push-only state, and when the data flow is reduced in the push-pull state, the push-pull state is changed into the pull-only state; when the data stream is pulled down in the pull-only state, the pull-only state changes to the empty state, and when the data stream is pushed up in the pull-only state, the pull-only state changes to the push-pull state.
After receiving the data stream transmission message sent by the first streaming media server 1021, the trunking control server 103 may obtain the state information of the target data stream according to the data stream identifier of the target data stream in the data stream transmission message, and determine the corresponding processing manner according to the state information.
FIG. 5 is a diagram illustrating a data flow state update, according to an example embodiment. As shown in fig. 5, in a case that the data stream request message includes a push stream request message, if the trunking control server 103 determines that the state information of the target data stream corresponding to the push stream request message is in an empty state, the trunking control server 103 may control the first streaming media server 1021 to receive the target data stream sent by the terminal that sent the push stream request message, record the server information of the first streaming media server 1021, and update the state information to a push-only state; if the trunking control server 103 determines that the state information of the target data stream corresponding to the stream pushing request message is in a pull-only state, the trunking control server 103 may obtain a target streaming server that sends a stream pushing request message for the target data stream, and send a stream pushing instruction to the first streaming server 1021 according to the server identifier of the target streaming server, in a case where the target streaming server is the first streaming server 1021, control the first streaming server 1021 to send the target data stream to a terminal that sends the stream pushing request message after receiving the target data stream, in a case where the target streaming server is the second streaming server 1022, the second streaming server 1022 includes a streaming server that receives the stream pulling request message sent for the target data stream, control the first streaming server 1021 after receiving the target data stream, pushing the target data stream to the second streaming media server 1022, and updating the state information to a push-pull state; if the trunking control server 103 determines that the state information of the target data stream corresponding to the stream pushing request message is a push-only state, the trunking control server 103 may determine whether the stream pushing of the first streaming media server 1021 is completed, if the stream pushing is not completed, clear the current stream pushing server information, and if the stream pushing is completed, update the state information of the target data stream; if the trunking control server 103 determines that the state information of the target data stream corresponding to the stream pushing request message is in a push-pull state, the trunking control server 103 may determine whether the stream pushing of the first streaming media server 1021 is completed, if the current stream pushing is not completed, may send a stream pushing instruction to the first streaming media server 1021, clear the current stream pushing server information and record the server information of the first streaming media server 1021, where the first streaming media server 1021 may push the target data stream to the second streaming media server 1022 according to the stream pushing instruction, and if the current stream pushing is completed, may update the state information of the target data stream.
Fig. 6 is a schematic diagram illustrating a second data stream state update according to an exemplary embodiment, as shown in fig. 6, when the data stream request message includes a pull stream request message, if the trunking control server 103 determines that the state information of a target data stream corresponding to the pull stream request message is in an empty state or a pull-only state, the trunking control server 103 may record the server information of the first streaming media server 1021 receiving the pull stream request message, and update the state information of the target data stream to the pull-only state; if the cluster control server 103 determines that the state information of the target data stream corresponding to the pull request message is in the push-only state or the push-pull state, the cluster control server 103 may determine whether the target data stream requested by the pull request message is stored on the first streaming media server 1021, if the target data stream requested by the pull request message is stored on the first streaming media server 1021, controlling the first streaming media server 1021 to send the target data stream to the terminal corresponding to the pull request message, if the target data stream requested by the pull request message is not stored on the first streaming media server 1021, a third streaming server 1023 of the plurality of streaming servers storing the target data stream may be acquired, and controls the third streaming media server 1023 to push the target data stream to the first streaming media server 1021, and updates the state information of the target data stream to a push-pull state.
It should be noted that, after the first streaming media server 1021 receives the request for stopping streaming from the terminal, for example, the watching end of the monitoring system stops playing the target data stream, and the cluster control server 103 may determine the corresponding processing manner according to the state information of the target data stream. Fig. 7 is a schematic diagram illustrating a third data flow state update according to an exemplary embodiment, as shown in fig. 7, if the state information is an empty state or a push-only state, the cluster control server 103 may record exception information; if the state information is a pull-only state, the cluster control server 103 may delete the relevant information of the streaming media server corresponding to the pull stream request message; if the state information is a push-pull state, the cluster control server 103 may determine whether there is any data stream on the first streaming media server 1021, and if there is a data stream, may send a push stop instruction to the third streaming media server 1023, and after receiving the push stop instruction, the third streaming media server 1023 stops pushing the stream to the first streaming media server 1021.
After the first streaming media server 1021 receives the request for stopping streaming from the terminal, for example, a camera of the monitoring system stops shooting the target data stream, and the cluster control server 103 may determine a corresponding processing manner according to the state information of the target data stream. Fig. 8 is a schematic diagram illustrating a fourth data flow state update according to an exemplary embodiment, as shown in fig. 8, if the state information is an empty state or a pull-only state, the cluster control server 103 may record exception information; if the state information is a push-only state, the cluster control server 103 may delete the relevant information of the streaming media server corresponding to the push stream request message; if the status information is a push-pull status, the cluster control server 103 may send a stream pushing stopping instruction to the first streaming server 1021, and after receiving the stream pushing stopping instruction, the first streaming server 1021 determines whether there is a data stream in the first streaming server 1021, and if there is a data stream, controls the first streaming server 1021 to stop pushing the target data stream to another streaming server.
It should be noted that, in the process of processing the data stream transmission request by the cluster control server 103, an operation log for the target data stream may also be recorded, so as to conveniently count the use condition of each data stream.
In addition, the cluster control server 103 in the present disclosure may include a security authentication server, a media control server, a cluster management server, and a data monitoring server. The security authentication server is used for determining whether the identity of the terminal sending the data stream request is legal or not according to the data stream transmission message, namely whether the terminal has the authority to request the target data stream or not. The media control server is configured to receive the data streaming message sent by the first streaming media server 1021 and send a control instruction to the streaming media server according to the data streaming message. The cluster management server is configured to manage the streaming media servers in the streaming media cluster server 102, and includes automatic capacity expansion, a down server lower limit, and the like, so as to ensure availability of the streaming media servers. The data monitoring server is configured to monitor a transmission state of the data stream, and report exception information when the data stream is abnormal, where the exception information may include that a code rate of the target data stream exceeds a preset code rate threshold, a frame rate of the target data stream exceeds a preset frame rate threshold, the number of terminals in a connected state exceeds a preset number threshold, and the like.
Through the system, the load balancing server receives a data stream request message sent by the terminal and forwards the data stream request message to the first streaming media server, wherein the first streaming media server is any one of the streaming media servers; further, the first streaming media server sends a data stream transmission message to the cluster control server according to the data stream request message, and the cluster control server may control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes a push stream request message, and control the first streaming media server to push the target data stream requested by the push stream request message to the terminal when the data stream request message includes a pull stream request message. That is to say, the load balancing server only needs to forward the received data stream request message to any one of the streaming media servers in the streaming media server cluster, and does not need to determine the streaming media server capable of receiving the data stream request message according to the data stream request message, so that for the load balancing server and the streaming media server cluster of any architecture, data stream transmission between the streaming media server and the terminal can be controlled through the cluster control server, and therefore dependence of the streaming media cluster control system on the load balancing server and a data stream transmission protocol can be avoided, and the extensibility and portability of the streaming media cluster control system are higher.
Fig. 9 is a flowchart illustrating a streaming media cluster control method applied to a cluster control server in a streaming media cluster control system according to an exemplary embodiment, where the streaming media cluster control system includes a load balancing server, a streaming media server cluster, and a cluster control server, the streaming media server cluster includes a plurality of streaming media servers, and the plurality of streaming media servers are respectively connected to the load balancing server and the cluster control server. As shown in fig. 9, the method includes:
s901, receiving a data stream transmission message sent by a first streaming media server according to a data stream request message when the first streaming media server receives the data stream request message sent by a load balancing server.
The first streaming media server is any one of a plurality of streaming media servers, and the data stream request message includes a push stream request message or a pull stream request message.
In this step, after receiving a data stream request message sent by a terminal, a load balancing server may send the data stream request message to a first streaming media server, where the data stream request message may include a terminal identifier of the terminal that sent the data stream request message, a data stream identifier of a target data stream requested to be transmitted by the data stream request message, and a request type, and the request type may be a push stream type or a pull stream type. And if the request type is a push flow type, the data flow request message is a push flow request message, and if the request type is a pull flow type, the data flow request message is a pull flow request message.
After receiving the data stream request message sent by the load balancer, the first streaming media server may send a data stream transmission message to the cluster control server according to the data stream request message, where the data stream transmission message may include a terminal identifier of a terminal that sends the data stream request message, a data stream identifier of a target data stream requested to be transmitted by the data stream request message, a request type, and a server identifier of the first streaming media server.
S902, controlling the first streaming media server to receive the target data stream sent by the terminal when the data stream request message includes a stream pushing request message.
In this step, the cluster control server controls the first streaming media server to establish a connection with the terminal that sends the stream pushing request message, and receives the target data stream sent by the terminal. In a possible implementation manner, in a case that the data stream request message includes a push stream request message, it may be further determined whether there is a pull stream request message requesting a target data stream through the first streaming media server; and controlling the first streaming media server to push the target data stream according to the pull request message when determining that the pull request message requesting the target data stream through the first streaming media server exists. That is, before the first streaming media service receives the push stream request message sent by the load balancing server, the pull stream request message sent by the load balancing server is also received, and the pull stream request message requests the target data stream sent by the first streaming media server, which is the same as the target data stream received by the first streaming media server requested by the push stream request message. In this case, the first streaming server may be controlled to receive the target data stream and transmit the target data stream to the terminal corresponding to the pull request message.
In another possible implementation manner, it may be further determined whether there is a pull request message requesting the target data stream through a second streaming server, where the second streaming server includes at least one streaming server of the multiple streaming servers except the first streaming server; and controlling the first streaming media server to push the target data stream to the second streaming media server if it is determined that there is a pull stream request message requesting the target data stream through the second streaming media server. That is to say, before the first streaming media server receives the push stream request message sent by the load balancing server, the second streaming media server receives the pull stream request message sent by the load balancing server, where the pull stream request message requests the target data stream sent by the first streaming media server, and the target data stream received by the second streaming media server is the same as the push stream request message. In this case, the first streaming media server may be controlled to push the target data stream to the second streaming media server while receiving the target data stream.
And S903, controlling the first streaming media server to push the target data stream requested by the pull stream request message to the terminal under the condition that the data stream request message comprises the pull stream request message.
In this step, in the case that the data stream request message includes a pull stream request message, it needs to be determined whether a target data stream requested by the pull stream request message is stored on the first streaming media server. In one possible implementation, it may be determined whether the target data stream requested by the pull request message is stored on the first streaming media server according to the data streaming message; and controlling the first streaming media server to push the target data stream to the terminal under the condition that the target data stream is determined to be stored on the first streaming media server. That is to say, after receiving the data streaming transmission message sent by the first streaming media server, the type of the data streaming request message may be determined according to the data streaming transmission message, and if it is determined that the data streaming request message includes the pull streaming request message, it is first determined whether the first streaming media server stores the target data stream requested by the pull streaming request message. If the target data stream requested by the pull stream request message is stored in the first streaming media server, the first streaming media server may be controlled to push the target data stream to the terminal.
In another possible implementation manner, in a case that it is determined that the target data stream is not stored on the first streaming media server, a third streaming media server storing the target data stream in a plurality of streaming media servers may be acquired; and controlling the third streaming media server to push the target data stream to the first streaming media server, wherein the first streaming media server pushes the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server. For obtaining the third streaming media server and controlling the third streaming media server to push the target data stream to the first streaming media server, reference may be made to the embodiments of the present disclosure, and details are not described here.
By adopting the method, the load balancing server receives the data stream request message sent by the terminal and forwards the data stream request message to the first streaming media server, wherein the first streaming media server is any one of the streaming media servers; further, the first streaming media server sends a data stream transmission message to the cluster control server according to the data stream request message, and the cluster control server may control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes a push stream request message, and control the first streaming media server to push the target data stream requested by the push stream request message to the terminal when the data stream request message includes a pull stream request message. That is to say, the load balancing server only needs to forward the received data stream request message to any one of the streaming media servers in the streaming media server cluster, and does not need to determine the streaming media server capable of receiving the data stream request message according to the data stream request message, so that for the load balancing server and the streaming media server cluster of any architecture, data stream transmission between the streaming media server and the terminal can be controlled through the cluster control server, thereby avoiding the dependence of the streaming media cluster control system on the load balancing server and the data stream transmission protocol, and enabling the scalability and the portability of the streaming media cluster control system to be stronger.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A streaming media cluster control system, the system comprising: the system comprises a load balancing server, a streaming media server cluster and a cluster control server, wherein the streaming media server cluster comprises a plurality of streaming media servers which are respectively connected with the load balancing server and the cluster control server;
the load balancing server is configured to receive a data stream request message sent by a terminal, and forward the data stream request message to a first streaming media server, where the first streaming media server is any one of the multiple streaming media servers, and the data stream request message includes a push stream request message or a pull stream request message;
the first streaming media server is configured to send a data stream transmission message to the trunking control server according to the data stream request message when receiving the data stream request message sent by the load balancing server;
the cluster control server is configured to control the first streaming media server to receive a target data stream sent by the terminal when the data stream request message includes the stream pushing request message, and control the first streaming media server to push the target data stream requested by the stream pulling request message to the terminal when the data stream request message includes the stream pulling request message.
2. The system of claim 1, wherein the cluster control server is further configured to determine whether the pull request message requesting the target data stream through the first streaming media server exists if the data stream request message includes the push request message, and control the first streaming media server to push the target data stream according to the pull request message if it is determined that the pull request message requesting the target data stream through the first streaming media server exists.
3. The system of claim 2, wherein the cluster control server is further configured to determine whether there is the pull request message requesting the target data stream through a second streaming server, where the second streaming server includes at least one of the plurality of streaming servers other than the first streaming server, and control the first streaming server to push the target data stream to the second streaming server if it is determined that there is the pull request message requesting the target data stream through the second streaming server.
4. The system according to claim 1, wherein the cluster control server is further configured to determine, according to the data streaming message, whether the target data stream requested by the pull request message is stored on the first streaming server if the data streaming request message includes the pull request message, and control the first streaming server to push the target data stream to the terminal if it is determined that the target data stream is stored on the first streaming server.
5. The system according to claim 4, wherein the cluster control server is further configured to, if it is determined that the target data stream is not stored on the first streaming media server, obtain a third streaming media server, which stores the target data stream, of the plurality of streaming media servers, and control the third streaming media server to push the target data stream to the first streaming media server;
the first streaming media server is further configured to push the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server.
6. A method for controlling cluster of streaming media is characterized in that the method is applied to a cluster control server in a streaming media cluster control system, the streaming media cluster control system comprises a load balancing server, a streaming media server cluster and the cluster control server, the streaming media server cluster comprises a plurality of streaming media servers, and the plurality of streaming media servers are respectively connected with the load balancing server and the cluster control server; the method comprises the following steps:
under the condition that a first streaming media server receives a data stream request message sent by the load balancing server, receiving a data stream transmission message sent by the first streaming media server according to the data stream request message, wherein the first streaming media server is any one of a plurality of streaming media servers, and the data stream request message comprises a push stream request message or a pull stream request message;
and under the condition that the data stream request message comprises the stream pushing request message, controlling the first stream media server to receive a target data stream sent by a terminal, and under the condition that the data stream request message comprises the stream pulling request message, controlling the first stream media server to push the target data stream requested by the stream pulling request message to the terminal.
7. The method of claim 6, wherein if the data flow request message comprises the push flow request message, the method further comprises:
determining whether the pull stream request message requesting the target data stream through the first streaming media server exists;
and controlling the first streaming media server to push the target data stream according to the pull stream request message when the pull stream request message requesting the target data stream through the first streaming media server is determined to exist.
8. The method of claim 7, further comprising:
determining whether the pull stream request message requesting the target data stream through a second streaming server exists, the second streaming server including at least one streaming server of the plurality of streaming servers other than the first streaming server;
controlling the first streaming media server to push the target data stream to the second streaming media server if it is determined that the pull stream request message requesting the target data stream through the second streaming media server exists.
9. The method according to claim 6, wherein the controlling the first streaming media server to push the target data stream requested by the pull stream request message to the terminal comprises:
determining whether the target data stream requested by the pull stream request message is stored on the first streaming media server according to the data stream transmission message;
and controlling the first streaming media server to push the target data stream to the terminal under the condition that the target data stream is determined to be stored on the first streaming media server.
10. The method of claim 9, further comprising:
under the condition that the target data stream is not stored on the first streaming media server, acquiring a third streaming media server which stores the target data stream in a plurality of streaming media servers;
and controlling the third streaming media server to push the target data stream to the first streaming media server, so that the first streaming media server pushes the target data stream to the terminal after receiving the target data stream pushed by the third streaming media server.
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Application publication date: 20200908