CN111479117B - Live broadcast information source output method and device - Google Patents
Live broadcast information source output method and device Download PDFInfo
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- CN111479117B CN111479117B CN202010259600.5A CN202010259600A CN111479117B CN 111479117 B CN111479117 B CN 111479117B CN 202010259600 A CN202010259600 A CN 202010259600A CN 111479117 B CN111479117 B CN 111479117B
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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
- H04N21/218—Source of audio or video content, e.g. local disk arrays
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2405—Monitoring of the internal components or processes of the server, e.g. server load
Abstract
The invention provides a live broadcast information source output method and a device, wherein the method comprises the following steps: when a live broadcast information source inputs a live broadcast output cluster, calling each control program to read configuration information corresponding to the live broadcast information source; executing a triggering process; the triggering process comprises the following steps: determining a multicast signal selected from a live broadcast information source as a target multicast signal, and triggering each server to compete for an output right corresponding to the live broadcast information source according to configuration information; determining a server obtaining the output right as a target server; triggering a target server to output a target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time; when the target server is abnormal, the triggering process is executed again until the output of the target multicast signal is finished, and the output of the live broadcast information source is finished. By applying the method, when the target server is abnormal, the target server can compete for the output right again and automatically switch a new target server to output the target multicast signal, thereby ensuring the high available output of the live broadcast information source.
Description
Technical Field
The invention relates to the technical field of internet, in particular to a live broadcast information source output method and device.
Background
With the rapid development of the mobile internet, terminal devices such as smart phones, smart computers, smart televisions and the like can obtain live broadcast information sources transmitted in a network through network connection, so as to obtain live broadcast video streams corresponding to multicast signals, and play video frames of the live broadcast video streams.
In the prior art, a high available output needs to be realized by an encoder cluster in a transmission process of a live broadcast signal source, and in general, a source of the live broadcast signal source is a multicast signal provided by a plurality of channels or manufacturers, such as a satellite signal, a cooperation signal of each large media merchant, and the like. The source of the same live broadcast information source with a plurality of channels is output through the encoder cluster, however, when the encoder cluster fails, the standby encoder cluster needs to be switched, but the standby encoder cluster and the original encoder cluster may not belong to the equipment of the same manufacturer, the standby encoder cluster and the original encoder cluster cannot be automatically coordinated, manual switching is needed, and the output address of the live broadcast information source needs to be changed during switching. Therefore, in the prior art, when an encoder cluster fails, a standby encoder cluster cannot be switched quickly, and high available output of a live broadcast information source cannot be guaranteed.
Disclosure of Invention
In view of this, the present invention provides a live broadcast information source output method, by which, when a target server is abnormal, it is possible to re-compete for an output right and automatically switch a new target server to output a target multicast signal, thereby ensuring high available output to the live broadcast information source.
The invention also provides a live broadcast information source output device which is used for ensuring the realization and the application of the method in practice.
A live source output method comprises the following steps:
when a live broadcast information source is detected to input a live broadcast output cluster, calling a control program corresponding to each preset server in the live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system, wherein the live broadcast information source comprises a plurality of same multicast signals;
selecting a multicast signal to be output currently from the live broadcast information source, and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
and when the running state of the target server is abnormal, selecting a new multicast signal to be output currently from the live broadcast information source, and executing the triggering process again until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
Optionally, in the foregoing method, the selecting a multicast signal to be currently output from the live broadcast source includes:
detecting the signal state of each current multicast signal in the live broadcast information source, and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
The above method, optionally, further includes:
when the running state of the target server is not abnormal, calling a control program of the target server, and detecting whether the signal state of the target multicast signal is abnormal or not;
when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source;
and updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal.
Optionally, in the method, each server in the live broadcast output cluster, whose current operation state is normal, is triggered to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server, comprising:
acquiring information source parameters corresponding to the live information source contained in the configuration information, and generating a distributed lock corresponding to the live information source based on the information source parameters, wherein the distributed lock is unique identification information corresponding to the live information source;
creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory;
acquiring file parameters corresponding to each competition file, and determining the competition file corresponding to the minimum file parameter as a target competition file;
and sending the distributed lock to a server corresponding to the target competition file so that the server corresponding to the target competition file obtains the output right corresponding to the live broadcast information source, and determining the server corresponding to the target competition file as the target server.
Optionally, in the foregoing method, monitoring an operating state of the target server in real time during the process of outputting the target multicast signal includes:
calling a preset monitoring module to send a monitoring signal to the target server in real time;
judging whether the target server responds to the monitoring signal;
when the target server responds to the monitoring signal, determining that the current running state of the target server is a normal state;
and when the target server does not respond to the monitoring signal, determining that the current running state of the target server is an abnormal state.
The above method, optionally, further includes:
when the current running state of the target server is abnormal, acquiring a distributed lock in the target server, and generating a switching message corresponding to the target multicast signal according to the current running state of the target server;
and storing the switching message into the configuration information, so that when the triggering process is executed again, each server with normal current operation state competes for the output right according to the switching message in the configuration information.
A live source output device, comprising:
the device comprises a reading unit, a judging unit and a control unit, wherein the reading unit is used for calling a control program corresponding to each preset server in a live broadcast output cluster when detecting that a live broadcast information source inputs a live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system, and the live broadcast information source comprises a plurality of same multicast signals;
the execution unit is used for selecting the multicast signal to be output currently from the live broadcast information source and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
and the output unit is used for selecting a new multicast signal to be output currently from the live broadcast information source when the running state of the target server is abnormal, and re-executing the triggering process until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
The above apparatus, optionally, the execution unit includes:
the first detection subunit is used for detecting the signal state of each current multicast signal in the live broadcast information source and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
The above apparatus, optionally, further comprises:
the second detection subunit is used for calling a control program of the target server and detecting whether the signal state of the target multicast signal is abnormal or not when the running state of the target server is not abnormal; when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source; and updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal.
The above apparatus, optionally, the execution unit includes:
the generating subunit is configured to acquire an information source parameter corresponding to the live information source included in the configuration information, and generate a distributed lock corresponding to the live information source based on the information source parameter, where the distributed lock is unique identification information corresponding to the live information source;
the triggering subunit is used for creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory;
the first determining subunit is configured to obtain a file parameter corresponding to each competitive file, and determine the competitive file corresponding to the minimum file parameter as a target competitive file;
and the second determining subunit is configured to send the distributed lock to a server corresponding to the target competing file, so that the server corresponding to the target competing file obtains an output right corresponding to the live broadcast information source, and determine the server corresponding to the target competing file as the target server.
A storage medium comprises stored instructions, wherein when the instructions are executed, a device where the storage medium is located is controlled to execute the live broadcast source output method.
An electronic device comprising a memory, and one or more instructions, wherein the one or more instructions are stored in the memory and configured to be executed by one or more processors to perform the above-described live source output method.
Compared with the prior art, the invention has the following advantages:
the invention provides a live broadcast information source output method, which comprises the following steps: when a live broadcast information source is detected to input a live broadcast output cluster, calling a control program corresponding to each preset server in the live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system; selecting a multicast signal to be output currently from the live broadcast information source, and executing a preset triggering process; the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal; and when the running state of the target server is abnormal, selecting a new multicast signal to be output currently from the live broadcast information source, and executing the triggering process again until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source. By applying the method provided by the invention, when the target server is abnormal, the target server can compete for the output right again and automatically switch a new target server to output the target multicast signal, thereby ensuring the high available output of the live broadcast information source.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for outputting a live broadcast information source according to an embodiment of the present invention;
fig. 2 is a diagram illustrating a method of a live broadcast source output method according to an embodiment of the present invention;
fig. 3 is a flowchart of another method of a live broadcast source output method according to an embodiment of the present invention;
fig. 4 is a flowchart of another method of a live broadcast source output method according to an embodiment of the present invention;
fig. 5 is a device structure diagram of a live source output device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The invention is operational with numerous general purpose or special purpose computing device environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multi-processor apparatus, distributed computing environments that include any of the above devices or equipment, and the like.
The embodiment of the invention provides a live broadcast information source output method, which can be applied to various system platforms, wherein an execution main body of the method can be a computer terminal or a processor of various mobile devices, and a flow chart of the method is shown in figure 1 and specifically comprises the following steps:
s101: when a live broadcast information source is detected to input a live broadcast output cluster, calling a control program corresponding to each preset server in the live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system;
the live broadcast information source comprises a plurality of same multicast signals, and each multicast signal is respectively sent by different upstream devices;
in the embodiment of the invention, the live broadcast information source is equivalent to a signal stream set, the live broadcast information source comprises multicast signals sent by each upstream device, and the upstream devices comprise devices which can send live broadcast signals, such as satellite devices, friend signal platforms and the like. The live broadcast output cluster is used for receiving a live broadcast information source formed by multicast signals sent by each upstream device, selecting each multicast signal in the input live broadcast information source, and outputting the selected multicast signal through any server contained in the selected multicast signal. The live broadcast output cluster comprises a plurality of servers, and each server is provided with a corresponding control program. When the live broadcast information source inputs a live broadcast output cluster, the control program corresponding to each server reads the configuration information corresponding to the live broadcast information source in the distributed system. The distributed system is specifically a distributed consistent coordination system, such as a zookeeper or etcd distributed coordination system, and is used for storing configuration information corresponding to the live broadcast information source.
It should be noted that the configuration information includes addresses of the upstream devices respectively corresponding to the multicast signals in the live broadcast source, an output address of the live broadcast source, and the like.
S102: selecting a multicast signal to be output currently from the live broadcast information source, and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
in the embodiment of the invention, because the live broadcast information source comprises a plurality of multicast signals, and each multicast signal is the same signal, when the live broadcast information source is output, only any one multicast signal needs to be output, and the output of the live broadcast information source can be finished. And after receiving the input live broadcast information source, selecting any one multicast signal from the live broadcast information source as an output target multicast signal. Similarly, a plurality of servers are provided in the live broadcast output cluster, and when outputting a target multicast signal, only one server is required as a target server for outputting the target multicast signal. And determining a target server for outputting the target multicast signal by executing a triggering process, and triggering the target server to output the target multicast signal. Before the target server is determined, each server which needs to be in a normal current state competes for the output right corresponding to the multicast information source, and after the target server obtains the output right, the target server can output the target multicast signals in the multicast information source. And in the process of outputting the target multicast signal by the target server, the running state of the target server needs to be monitored in real time in order to avoid the target server from being abnormal.
S103: and when the running state of the target server is abnormal, selecting a new multicast signal to be output currently from the live broadcast information source, and executing the triggering process again until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
In the embodiment of the invention, in the process of outputting the target multicast signal by the target server, when the running state of the target server is abnormal, the target server is represented that the target server cannot continuously output the target multicast signal currently. In the live broadcast output cluster, a server with a normal operation state needs to be switched again to serve as a target server to continue outputting the target multicast signal.
When the running state of the target server is abnormal, the new multicast signal to be output currently selected from the live broadcast information source can be a target multicast signal output by the target server before the abnormality occurs, or other multicast signals except the target multicast signal can be reselected from the live broadcast information source as the multicast signals to be output.
It can be understood that the triggering process of S102 is a cyclic execution process, and when the target server is abnormal and cannot normally output the target multicast signal, each server that is in a normal operation state in the live broadcast output cluster is again made to compete to obtain the output right corresponding to the live broadcast signal source, and the server that obtains the output right is determined to be a new target server. The original target server outputs the target multicast signal and switches to a new target server to output the target multicast signal. In the process of outputting the target multicast signal, the original target server may already output a part of the target multicast signal, and the current output position of the target multicast signal needs to be determined, so that the new target server continues to output the target multicast signal from the current output position.
In the live broadcast information source output method provided by the embodiment of the invention, a live broadcast information source input live broadcast output cluster is formed by multicast signals sent by each upstream device. And starting service by the distributed system, confirming that no abnormality exists in the system, and writing and storing configuration information such as information source input addresses, information source output addresses and the like related to the live information sources. And when the live broadcast information source is detected to input the live broadcast output cluster, starting a control program of each server in the live broadcast output cluster to read the configuration information stored in the distributed system. And determining a target multicast signal in the live broadcast information source to be output. And according to the configuration information, enabling each server in the live broadcast output cluster to compete to obtain an output right corresponding to the live broadcast information source, and outputting the target multicast signal by the target server obtaining the output right according to the current output position of the target multicast signal. When the target server is abnormal, each normal server is enabled to compete for the output right again, and the new target server which obtains the output right is switched to output the target multicast signal until the target multicast signal is output. And when the output of the target multicast signal is finished, representing that the output of the live broadcast information source is finished.
By applying the method provided by the embodiment of the invention, when the target server is abnormal, the target server can compete for the output right again and automatically switch a new target server to output the target multicast signal, thereby ensuring the high available output of the live broadcast information source.
Based on the method provided by the above embodiment, the process of outputting the live broadcast information source is specifically shown in fig. 2, where the live broadcast information source a includes a plurality of multicast signal input live broadcast output clusters Z, and a control program corresponding to each server H in the live broadcast output cluster acquires configuration information corresponding to the live broadcast information source in the distributed system D. After a target multicast signal B to be output is selected from the live broadcast signal source A, according to the configuration information, triggering each server H in the live broadcast output cluster Z to compete to obtain an output right corresponding to the live broadcast signal source, and outputting the target multicast signal B by the target server obtaining the output right according to the current output position of the target multicast signal B. And when the target server is abnormal, re-determining a new target multicast signal to be output, and re-switching the server to output the new target multicast signal until the target multicast signal is output.
Optionally, in the method provided in the embodiment of the present invention, when the target server outputs the target multicast signal, if the current operating state of the target server is abnormal, it may be determined whether the target multicast signal is output completely, and if the target multicast signal is not output completely, a new multicast signal to be currently output is selected from the live broadcast information source, and the triggering process is executed again; if the target multicast signal is output, a new multicast signal to be output currently is not selected from the live broadcast signal source, and the output of the live broadcast signal source is finished without executing the triggering process again.
In the method provided in the embodiment of the present invention, based on the content in step S102, when outputting a live broadcast information source, it is necessary to determine a multicast signal output from the live broadcast information source, and select a current multicast signal to be output from the live broadcast information source, which may specifically include:
detecting the signal state of each current multicast signal in the live broadcast information source, and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
In the live broadcast information source output method provided by the embodiment of the invention, any multicast signal needs to be selected from the live broadcast information sources for output. Firstly, the signal state of each multicast signal in the live broadcast information source needs to be detected so as to determine the multicast signals of which the current signal state is the normal state in each multicast signal. In the process of executing selection, each control program in the live broadcast output cluster generates a signal selection instruction corresponding to each normal multicast signal, and sends the signal selection instruction to the distributed system. After receiving the instruction, the distributed system selects one multicast signal from the normal multicast signals as a multicast signal output by the live broadcast output cluster, and returns a signal selection message of the multicast signal. And determining the multicast signal to be output currently according to the signal selection message.
Optionally, in the above selecting process, the selecting process of the multicast signal by the distributed system is random. If no signal selection instruction is generated or the distributed system does not select any multicast signal to be output, each control program can randomly select one multicast signal from the multicast signals with the normal signal state as the multicast signal to be output, or manually select any multicast signal as the multicast signal to be output.
Based on the method provided by the above embodiment, when the triggering process is executed, the signal selection process needs to be implemented in real time, and the specific implementation method includes:
when the running state of the target server is not abnormal, calling a control program of the target server, and detecting whether the signal state of the target multicast signal is abnormal or not;
when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source;
updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal
In the live broadcast source output method provided by the embodiment of the invention, in the process of executing triggering, the target server outputs the target multicast signal, and because the target multicast signal is sent by the corresponding upstream device in real time, when the upstream device of the target multicast signal fails or is abnormal in the process of sending the signal, the situation of input abnormality such as interruption of sending and inputting of the target multicast signal may be caused. Therefore, when the operation state of the target server is not abnormal, it is necessary to detect whether the signal state of the target multicast signal is abnormal in real time through the control program of the target server. And when the abnormal multicast signals occur, the target multicast signals with the abnormal signal states are removed from the live broadcast information source, the multicast signals with the normal signal states in the live broadcast information source are determined again, the signal selection instruction is sent to the distributed system again, and the distributed system selects new multicast signals to be output for output.
It can be understood that each multicast signal in the live broadcast information source is the same, and in the process of executing the trigger, if the target multicast signal is abnormal, after the new target multicast signal is determined, the current output position of the new target multicast signal is determined according to the current output position of the original abnormal target multicast signal in the output process, that is, the current output position of the new target multicast signal is consistent with the current output position currently being output when the original target multicast signal is abnormal. According to the current output position of the new target multicast signal, the condition that other downstream equipment receiving the live broadcast signal source cannot sense the abnormity of the output signal after the live broadcast signal source is output can be ensured.
By applying the method provided by the embodiment of the invention, after the target multicast signal is abnormal, a new target multicast signal is reselected so as to realize high availability of the output live broadcast information source.
Based on the method provided by the foregoing embodiment, the detailed steps of the output process of the live broadcast information source are described, and with reference to fig. 3, the output process of the live broadcast information source includes:
s301: when detecting that a live broadcast information source inputs a live broadcast output cluster, calling each control program to read configuration information corresponding to the live broadcast information source stored in the distributed system;
s302: detecting the signal state of each current multicast signal in a live broadcast information source, and sending a signal selection instruction corresponding to the multicast signal with each normal signal state to a distributed system;
s303: receiving a signal selection message returned by the distributed system, and determining a target multicast signal to be output according to a signal identifier in the signal selection message;
s304: according to the configuration information, triggering the servers with normal running states to compete for the output right corresponding to the live broadcast information source;
s305: determining a server obtaining the output right as a target server;
s306: determining the current output position of the target multicast signal, and triggering the target server to output the target multicast signal according to the current trigger position;
s307: monitoring whether the running state of the target server is abnormal in real time, if so, executing step S302; if not, go to step S308;
s308: detecting whether the output of the target multicast signal is finished or not; if not, executing step S306; if yes, the output of the direct broadcasting information source is finished.
Specifically, in the process of executing step S304 to step S308, whether the signal status of the target multicast signal is abnormal is detected in real time, if the signal status of the target multicast signal is abnormal, the process of step S302 to step S303 is executed again, and after a new target multicast signal is determined according to step S302 and step S303, the process of step S305 to step S308 is executed to ensure high availability of the output multicast signal. The detailed description of the specific process will not be repeated here.
In the method provided in the embodiment of the present invention, based on the content in step S102, in the process of executing the trigger, a target server that outputs a target live broadcast signal needs to be determined. Specifically, the server with normal operation state is triggered to compete to obtain the output right corresponding to the live broadcast information source, and the server with the obtained output right outputs the target multicast signal. Fig. 4 shows a process of competing for an output right corresponding to a live broadcast source and determining a target server, which may specifically include:
s401: acquiring information source parameters corresponding to the live information source contained in the configuration information, and generating a distributed lock corresponding to the live information source based on the information source parameters, wherein the distributed lock is unique identification information corresponding to the live information source;
in the embodiment of the invention, the configuration information corresponding to the live broadcast information source comprises a plurality of information source parameters, and each parameter can respectively enable the equipment address of the upstream equipment corresponding to each multicast signal, the target address required to be output by the live broadcast information source and the like. A distributed lock is an implementation of a lock that controls access to a shared resource either in a distributed system or between different systems. In the invention, the distributed lock is equivalent to the unique identification information of the live broadcast information source, the live broadcast information source is the shared resource, if the live broadcast information source needs to be output by any one server in the live broadcast output cluster, the live broadcast information source is represented to be shared by all the servers, and in order to avoid that a plurality of servers output the live broadcast information source at the same time, the mutual interference among all the servers is avoided by generating the distributed lock corresponding to the live broadcast information source.
S402: creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory;
in the embodiment of the present invention, after the distributed lock is created, each server needs to compete to obtain the distributed lock, and specifically, the manner of obtaining the distributed lock is that, by creating a competition directory, each server generates a corresponding competition file in the competition directory through a control program corresponding to the server, and competes to obtain the distributed lock through the competition file corresponding to each server.
S403: acquiring file parameters corresponding to each competition file, and determining the competition file corresponding to the minimum file parameter as a target competition file;
in the embodiment of the present invention, each server obtains the distributed lock for contention, where the contention file corresponding to each server may be a program file operated by each server when obtaining the distributed lock in contention, each contention file generated in the contention directory may be randomly allocated with a corresponding file parameter, and whether the server obtains the distributed lock is determined according to the file parameter.
Specifically, the server corresponding to the competing file corresponding to the minimum file parameter obtains the distributed lock.
S404: and sending the distributed lock to a server corresponding to the target competition file so that the server corresponding to the target competition file obtains the output right corresponding to the live broadcast information source, and determining the server corresponding to the target competition file as the target server.
In the embodiment of the invention, the server acquiring the distributed lock is the target server, namely, the server acquiring the distributed lock has the output right corresponding to the live broadcast information source, and can output the target multicast signal under the condition that other servers have no interference.
In the live broadcast information source output method provided by the embodiment of the invention, each server is enabled to compete to obtain the output right corresponding to the live broadcast information source in a mode of generating the distributed lock corresponding to the live broadcast information source. After the distributed lock is generated according to the information source parameters, a competition directory corresponding to the distributed lock is created, each server with a normal operation state generates competition files under the competition directory, and the distributed lock is obtained through the competition files. Under the competition directory, corresponding file parameters are distributed to each competition file, a server for finally obtaining the distributed lock is determined according to the file parameters, and the server for obtaining the distributed lock has the output right corresponding to the live broadcast information source.
By applying the method provided by the embodiment of the invention, each server competes the output right of the live broadcast information source in a distributed locking mode, and when the server obtaining the output right outputs the target multicast signal, the server can not be interfered by other servers, thereby improving the transmission performance of the multicast signal.
The method provided by the embodiment of the invention aims to prevent the signal interruption caused by the abnormity of the target server in the process of outputting the target multicast signal. In a process of outputting a target multicast signal by a target server, monitoring an operating state of the target server in real time, where the specific process may include:
calling a preset monitoring module to send a monitoring signal to the target server in real time;
judging whether the target server responds to the monitoring signal;
when the target server responds to the monitoring signal, determining that the current running state of the target server is a normal state;
and when the target server does not respond to the monitoring signal, determining that the current running state of the target server is an abnormal state.
In the live broadcast information source output method provided by the embodiment of the invention, the monitoring module is used for monitoring the current running state of the target server and sending a monitoring signal to the target server in real time when the target server outputs the target multicast signal. The monitoring signal is used for monitoring whether the target server can respond to the monitoring signal currently. If the running state of the target server is normal, the monitoring signal can be quickly responded, and a response message is returned to the monitoring module; if the running state of the target server is abnormal, the target server cannot respond to the monitoring signal and cannot return a response message. When the response message is not received within a certain time, it may be determined that the target server is currently abnormal.
In the embodiment of the present invention, when an abnormality occurs in the target server, the trigger procedure in the above embodiment needs to be executed again.
Specifically, based on the processes of steps S401 to S404 in the foregoing embodiment, the target server has the distributed lock corresponding to the live broadcast information source to represent that the target server obtains the output right corresponding to the live broadcast information source. When the target server is abnormal, the distributed lock needs to be released again before the triggering process is executed, so that the servers with normal running states compete again to obtain the distributed lock, and the specific process includes:
when the current running state of the target server is abnormal, acquiring a distributed lock in the target server, and generating a switching message corresponding to the target multicast signal according to the current running state of the target server;
and storing the switching message into the configuration information, so that when the triggering process is executed again, each server with normal current operation state competes for the output right according to the switching message in the configuration information.
In the live broadcast information source output method provided by the embodiment of the invention, when the running state of the target server is abnormal, the distributed lock in the target server needs to be released to obtain the distributed lock. In order to ensure high available output of a direct broadcast information source, a new server needs to be switched immediately to output a target multicast signal, after a distributed lock released by the target server is obtained, according to a switching message corresponding to the generated target multicast signal, after the switching message is stored in the configuration information, a server with a normal operation state is prompted to be reselected as a new target server for outputting the target multicast signal.
Specifically, when the triggering process is executed again, the servers in normal operation states generate new competition files again in the competition directory according to the switching message in the configuration information, so that the servers compete again to obtain the distributed lock. And determining the server which currently obtains the distributed lock as the target server again. According to the process that the original target server outputs the target multicast signal, the current output position of the target multicast signal when the original target server is abnormal is determined, the new target server outputs the target multicast signal according to the current output position of the target multicast signal, and meanwhile, the monitoring module monitors the running state of the new target server in real time. When the output of the target multicast signal is finished, the target server does not need to be monitored. If the target multicast signal is not output and the running state of the new target server is abnormal, the process of the above embodiment is executed again, which will not be described again here.
By applying the method provided by the invention, the running state of the target server is monitored in real time through the monitoring module, the output process of the live broadcast information source is ensured not to be interrupted, and a new server can be quickly switched to continue outputting even if the target server is abnormal.
The specific implementation procedures and derivatives thereof of the above embodiments are within the scope of the present invention.
Corresponding to the method described in fig. 1, an embodiment of the present invention further provides a live source output device, which is used for specifically implementing the method in fig. 1, where the live source output device provided in the embodiment of the present invention may be applied to a computer terminal or various mobile devices, and a schematic structural diagram of the live source output device is shown in fig. 5, and specifically includes:
a reading unit 501, configured to, when it is detected that a live broadcast signal source inputs a live broadcast output cluster, call a control program corresponding to each server preset in the live broadcast output cluster, and read configuration information corresponding to the live broadcast signal source stored in a preset distributed system, where the live broadcast signal source includes a plurality of identical multicast signals;
an executing unit 502, configured to select a multicast signal to be currently output from the live broadcast source, and execute a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
an output unit 503, configured to select a new multicast signal to be currently output from the live broadcast information source when the operation state of the target server is abnormal, and re-execute the triggering process until the target server finishes outputting the target multicast signal, so as to complete output of the live broadcast information source.
In the live broadcast information source output device provided by the embodiment of the invention, when a live broadcast information source inputs a live broadcast output cluster, the reading unit reads the configuration information corresponding to the live broadcast information source, and after a target multicast signal in the live broadcast information source is determined, the execution unit executes a triggering process to determine a target server for outputting the target multicast signal, and monitors the running state of the target server in real time, so that the target server is prevented from being abnormal and being incapable of continuously outputting the target multicast signal. If the running state of the target server is abnormal, the triggering process is executed again, and the output unit continues to output the target multicast signal according to the triggering process.
By applying the device provided by the invention, when the target server is abnormal, the device can compete for the output right again and automatically switch a new target server to output the target multicast signal, thereby ensuring the high available output of the live broadcast information source.
In the apparatus provided in the foregoing embodiment, the execution unit 502 includes:
the first detection subunit is used for detecting the signal state of each current multicast signal in the live broadcast information source and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
The apparatus provided in the above embodiment further includes:
the second detection subunit is used for calling a control program of the target server and detecting whether the signal state of the target multicast signal is abnormal or not when the running state of the target server is not abnormal; when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source; and updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal.
In the apparatus provided in the foregoing embodiment, the execution unit 502 includes:
the generating subunit is configured to acquire an information source parameter corresponding to the live information source included in the configuration information, and generate a distributed lock corresponding to the live information source based on the information source parameter, where the distributed lock is unique identification information corresponding to the live information source;
the triggering subunit is used for creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory;
the first determining subunit is configured to obtain a file parameter corresponding to each competitive file, and determine the competitive file corresponding to the minimum file parameter as a target competitive file;
and the second determining subunit is configured to send the distributed lock to a server corresponding to the target competing file, so that the server corresponding to the target competing file obtains an output right corresponding to the live broadcast information source, and determine the server corresponding to the target competing file as the target server.
In the apparatus provided in the foregoing embodiment, the execution unit 502 includes:
the sending subunit is used for calling a preset monitoring module to send a monitoring signal to the target server in real time;
the judging subunit is used for judging whether the target server responds to the monitoring signal;
the third determining subunit is configured to determine that the current operating state of the target server is a normal state when the target server responds to the monitoring signal;
and the fourth determining subunit is configured to determine that the current operating state of the target server is an abnormal state when the target server does not respond to the monitoring signal.
The apparatus provided in the above embodiment further includes:
the switching unit is used for acquiring the distributed lock in the target server when the current running state of the target server is abnormal, and generating a switching message corresponding to the target multicast signal according to the current running state of the target server; and storing the switching message into the configuration information, so that when the triggering process is executed again, each server with normal current operation state competes for the output right according to the switching message in the configuration information.
The specific working processes of each unit and sub-unit in the live broadcast information source output device disclosed in the above embodiment of the present invention may refer to corresponding contents in the live broadcast information source output method disclosed in the above embodiment of the present invention, and are not described herein again.
The embodiment of the invention also provides a storage medium, which comprises a stored instruction, wherein when the instruction runs, the device where the storage medium is located is controlled to execute the live information source output method.
An electronic device is provided in an embodiment of the present invention, and the structural diagram of the electronic device is shown in fig. 6, which specifically includes a memory 601 and one or more instructions 602, where the one or more instructions 602 are stored in the memory 601 and configured to be executed by one or more processors 603 to perform the following operations on the one or more instructions 602:
when a live broadcast information source is detected to input a live broadcast output cluster, calling a control program corresponding to each preset server in the live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system, wherein the live broadcast information source comprises a plurality of same multicast signals;
selecting a multicast signal to be output currently from the live broadcast information source, and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
and when the running state of the target server is abnormal, selecting a new multicast signal to be output currently from the live broadcast information source, and executing the triggering process again until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.
To clearly illustrate this interchangeability of hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method for outputting a live feed, comprising:
when a live broadcast information source is detected to input a live broadcast output cluster, calling a control program corresponding to each preset server in the live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system, wherein the live broadcast information source comprises a plurality of same multicast signals;
selecting a multicast signal to be output currently from the live broadcast information source, and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
triggering each server in the live broadcast output cluster, the current running state of which is normal, to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server, comprising: acquiring information source parameters corresponding to the live information source contained in the configuration information, and generating a distributed lock corresponding to the live information source based on the information source parameters, wherein the distributed lock is unique identification information corresponding to the live information source; creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory; acquiring file parameters corresponding to each competition file, and determining the competition file corresponding to the minimum file parameter as a target competition file; sending the distributed lock to a server corresponding to the target competition file so that the server corresponding to the target competition file obtains an output right corresponding to the live broadcast information source, and determining the server corresponding to the target competition file as a target server;
and when the running state of the target server is abnormal, selecting a new multicast signal to be output currently from the live broadcast information source, and executing the triggering process again until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
2. The method of claim 1, wherein the selecting the multicast signal currently to be output from the live source comprises:
detecting the signal state of each current multicast signal in the live broadcast information source, and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
3. The method of claim 2, further comprising:
when the running state of the target server is not abnormal, calling a control program of the target server, and detecting whether the signal state of the target multicast signal is abnormal or not;
when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source;
and updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal.
4. The method of claim 1, wherein monitoring the operation status of the target server in real time during the outputting of the target multicast signal comprises:
calling a preset monitoring module to send a monitoring signal to the target server in real time;
judging whether the target server responds to the monitoring signal;
when the target server responds to the monitoring signal, determining that the current running state of the target server is a normal state;
and when the target server does not respond to the monitoring signal, determining that the current running state of the target server is an abnormal state.
5. The method of claim 1, further comprising:
when the current running state of the target server is abnormal, acquiring a distributed lock in the target server, and generating a switching message corresponding to the target multicast signal according to the current running state of the target server;
and storing the switching message into the configuration information, so that when the triggering process is executed again, each server with normal current operation state competes for the output right according to the switching message in the configuration information.
6. A live source output device, comprising:
the device comprises a reading unit, a judging unit and a control unit, wherein the reading unit is used for calling a control program corresponding to each preset server in a live broadcast output cluster when detecting that a live broadcast information source inputs a live broadcast output cluster, and reading configuration information corresponding to the live broadcast information source stored in a preset distributed system, and the live broadcast information source comprises a plurality of same multicast signals;
the execution unit is used for selecting the multicast signal to be output currently from the live broadcast information source and executing a preset triggering process; wherein the triggering process comprises: determining the selected multicast signal to be output currently as a target multicast signal, and triggering each server with normal current operation state in the live broadcast output cluster according to the configuration information to compete for the output right corresponding to the live broadcast information source; determining the server obtaining the output right as a target server; determining the current output position of the target multicast signal, triggering the target server to output the target multicast signal from the current output position of the target multicast signal, and monitoring the running state of the target server in real time in the process of outputting the target multicast signal;
the execution unit includes:
the generating subunit is configured to acquire an information source parameter corresponding to the live information source included in the configuration information, and generate a distributed lock corresponding to the live information source based on the information source parameter, where the distributed lock is unique identification information corresponding to the live information source;
the triggering subunit is used for creating a competition directory corresponding to the distributed lock, triggering each server with a normal running state to apply a corresponding control program thereof, and generating competition files in the competition directory;
the first determining subunit is configured to obtain a file parameter corresponding to each competitive file, and determine the competitive file corresponding to the minimum file parameter as a target competitive file;
the second determining subunit is configured to send the distributed lock to a server corresponding to the target competing file, so that the server corresponding to the target competing file obtains an output right corresponding to the live broadcast information source, and determines the server corresponding to the target competing file as a target server;
and the output unit is used for selecting a new multicast signal to be output currently from the live broadcast information source when the running state of the target server is abnormal, and re-executing the triggering process until the target server finishes outputting the target multicast signal so as to finish the output of the live broadcast information source.
7. The apparatus of claim 6, wherein the execution unit comprises:
the first detection subunit is used for detecting the signal state of each current multicast signal in the live broadcast information source and executing a preset signal selection process;
wherein the signal selection process comprises: determining the multicast signals with normal signal states in the live broadcast information source, and sending a signal selection instruction corresponding to the multicast signals with normal signal states to the distributed system; and when receiving a signal selection message returned by the distributed system according to the signal selection instruction, acquiring a signal identifier contained in the signal selection message, and determining a multicast signal corresponding to the signal identifier as a current multicast signal to be output.
8. The apparatus of claim 7, further comprising:
the second detection subunit is used for calling a control program of the target server and detecting whether the signal state of the target multicast signal is abnormal or not when the running state of the target server is not abnormal; when the signal state of the target multicast signal is abnormal, the target multicast signal is removed from the live broadcast information source; and updating the current signal state of each multicast signal in the live broadcast information source, executing the signal selection process, and determining the current multicast signal to be output selected in the signal selection process as a target multicast signal.
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