WO2019007027A1

WO2019007027A1 - Video playing method and system, electronic device and readable storage medium

Info

Publication number: WO2019007027A1
Application number: PCT/CN2018/072552
Authority: WO
Inventors: 杨亮; 陈少杰; 张文明
Original assignee: 武汉斗鱼网络科技有限公司
Priority date: 2017-07-04
Filing date: 2018-01-15
Publication date: 2019-01-10
Also published as: CN107332846A

Abstract

Provided are a video playing method and system. The system comprises a broadcast directing terminal and an encoding terminal. The method comprises: the broadcast directing terminal provides a video display interface used for displaying at least one path of video source; in response to an operation selected by a user, the broadcast directing terminal sends video stream data corresponding to the video source selected by the user to the encoding terminal; the encoding terminal encodes and broadcasts the received video stream data. Therefore, the video playing system can be running harmoniously at different terminals, and the performance bottleneck problem of the playing system when running at the same terminal is solved.

Description

Video broadcast method, system, electronic device and readable storage medium

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No.

Technical field

The present invention relates to the field of data communication technologies, and in particular, to a video broadcast method, system, electronic device, and readable storage medium.

Background technique

In the video broadcast, the broadcaster is often required to select a suitable video source to broadcast to the viewer in the multi-channel video source. The video broadcast system generally includes a display module for displaying the multi-channel video for the user and encoding the video selected by the user. Out of the broadcast module. In the prior art, both the display module and the playout module work in the same computer device. When the number of multi-channel videos displayed is large, both modules need to consume a large amount of computer resources, and the computer device has performance. Bottlenecks may not be able to do so, which can affect the quality of video broadcasts.

Summary of the invention

In order to overcome the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a video broadcast method, system, electronic device, and readable storage medium, which are applied to a video playout system including a broadcast terminal and an encoding terminal, Methods include:

The navigation terminal provides a video display interface configured to display at least one video source;

Transmitting, by the navigation terminal, video stream data corresponding to the video source selected by the user to the encoding terminal, in response to the user selection operation;

The encoding terminal encodes and broadcasts the received video stream data.

Optionally, in the foregoing method, the step of sending the video stream data corresponding to the video source selected by the user to the encoding terminal includes:

The navigation terminal invokes a video receiving service of the encoding terminal through a remote procedure call protocol, and sends the video stream data to an interface of a video receiving service of the encoding terminal.

Optionally, in the above method, the video playout system further includes a message delivery server that communicates with the coding terminal and the coding terminal respectively; the navigation terminal invokes a video of the coding terminal by using a remote procedure call protocol. The steps to receive the service include:

The navigation terminal acquires video stream data corresponding to the selected video source;

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server through a remote procedure call protocol, where the remote call function includes a video receiving service in the encoding terminal that needs to be called;

The message delivery server forwards the call request to the encoding terminal, and invokes the video receiving service, so that the encoding terminal receives the video stream data sent by the guiding terminal.

Optionally, in the foregoing method, the remote procedure call protocol service is established in the message delivery server in advance; the method further includes:

The navigation terminal establishes a communication connection with the messaging server, so that the navigation terminal acts as a client of the remote procedure call protocol in the messaging server;

The encoding terminal establishes a communication connection with the message delivery server such that the navigation terminal acts as another client of the remote procedure call protocol in the messaging server.

Optionally, in the foregoing method, the step of establishing a remote procedure call protocol service in the messaging server in advance comprises:

Establishing a remote procedure call protocol service in the messaging server, and passing in the IP address of the messaging server and the selected port;

The step of the communication terminal establishing a communication connection with the messaging server includes:

Establishing a client of the remote procedure call protocol in the navigation terminal, and transmitting an IP address of the messaging server and a used port to establish a connection between the navigation terminal and the messaging server;

The step of the encoding terminal establishing a communication connection with the message delivery server includes:

Establishing a client of the remote procedure call protocol in the encoding terminal, and transmitting the IP address of the messaging server and the port used to establish a connection between the encoding terminal and the messaging server.

Optionally, in the foregoing method, after the step of establishing the connection between the navigation terminal and the messaging server, the method further includes:

Performing a registration function in the navigation terminal, registering the video receiving service into a list of the remote procedure call protocol service functions;

The registration function is executed in the messaging server to register the video receiving service into a list of the remote procedure call protocol service functions.

Optionally, in the foregoing method, the step of the broadcast terminal transmitting the video stream data corresponding to the video source selected by the user to the encoding terminal in response to the user selection operation comprises:

Registering the decoding process observer interface to the video source selected by the user;

The video stream data corresponding to the video source selected by the user is obtained by the observer interface of the decoding process to obtain video stream data corresponding to the video source selected by the user.

Optionally, in the above method, the method further includes:

The navigation terminal invokes the start broadcast service of the encoding terminal or stops the broadcast service through a remote procedure call protocol, so that the encoding terminal starts or stops encoding and broadcasting the received video stream data.

Optionally, in the foregoing method, the step of the broadcast terminal calling the start broadcast service or the stop play service of the encoding terminal by using a remote procedure call protocol includes:

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server by using a remote procedure call protocol, where the remote call function includes a start broadcast service or a stop broadcast service in the coding terminal that needs to be called. ;

The messaging server forwards the call request to the encoding terminal, invokes the start broadcast service or stops the broadcast service, so that the encoding terminal starts or stops encoding and broadcasting the received video stream data.

Optionally, in the above method, the method further includes:

Registering the video receiving service, starting the broadcast service, and stopping the broadcast service in the encoding terminal; and

Registering the video receiving service, starting the broadcast service, and stopping the broadcast service in the messaging server.

Another object of the present invention is to provide a video broadcast system, including a broadcast terminal and an encoding terminal.

The navigation terminal is configured to provide a video display interface to display at least one video source; and, in response to the user selection operation, send video stream data corresponding to the video source selected by the user to the encoding terminal;

The encoding terminal is configured to encode and play the received video stream data.

Optionally, in the foregoing system, the manner in which the video stream data of the broadcast terminal is sent to the encoding terminal includes:

The video receiving service of the encoding terminal is invoked by a remote procedure call protocol, and the video stream data is transmitted to an interface of a video receiving service of the encoding terminal.

Optionally, in the above system, the broadcast terminal is further configured to invoke the start broadcast service or stop the broadcast service of the encoding terminal by using a remote procedure call protocol, so that the encoding terminal starts or stops the received video. The stream data is encoded and broadcast.

Optionally, in the above system, the system further includes a message delivery server that separately communicates with the navigation terminal and the encoding terminal;

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server by using a remote procedure call protocol, where the remote call function includes a video receiving service in the encoding terminal that needs to be called, starts a broadcast service, or Stop the broadcast service;

The messaging server forwards the call request to the encoding terminal, invokes the video receiving service, starts a playout service, or stops the playout service.

Optionally, in the above system, a remote procedure call protocol service is established in the message delivery server in advance; the method further includes:

The navigation terminal establishes a communication connection with the messaging server, so that the navigation terminal acts as a client of the messaging server;

The encoding terminal establishes a communication connection with the message delivery server, so that the navigation terminal acts as another client of the message delivery server;

Optionally, in the foregoing system, the step of establishing a remote procedure call protocol service in the messaging server in advance comprises:

Optionally, in the foregoing system, after the step of establishing the connection between the navigation terminal and the messaging server, the method further includes:

Optionally, in the foregoing system, the step of the broadcast terminal transmitting the video stream data corresponding to the video source selected by the user to the encoding terminal in response to the user selection operation comprises:

The video stream data corresponding to the video source selected by the user is obtained by the decoding process observer interface, so as to obtain data before the video stream corresponding to the video source selected by the user is not decoded.

Another object of the present invention is to provide an electronic device including a memory and a processor for storing executable program code, the processor for reading executables stored in the memory The program code causes the electronic device to perform the above-described video playout method as the above-described broadcast terminal and/or decoding terminal.

Another object of the present invention is to provide a readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the above operation as the navigation terminal and/or the decoding terminal Video broadcast method.

Compared with the prior art, the present invention has the following beneficial effects:

The video broadcast method, system, electronic device and readable storage medium provided by the invention separate the display and encoding broadcast work of the multi-channel video into different execution terminals during the video broadcast process through distributed design, In this way, the video playout system can coordinately run on different terminals, and the performance bottleneck problem when the broadcast system runs on the same terminal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings show only certain embodiments of the present invention, and therefore It should be seen as a limitation on the scope, and those skilled in the art can obtain other related drawings according to these drawings without any creative work.

FIG. 1 is a schematic diagram of a video playout system according to an embodiment of the present invention;

2 is a flow chart of steps of a video playing method according to an embodiment of the present invention;

FIG. 3 is a second schematic diagram of a video playout system according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart showing the steps of a video playing method according to an embodiment of the present invention.

Icons: 10-video broadcast system; 100-guided terminal; 200-encoded terminal; 300-message delivery server; 400-network.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. The components of the embodiments of the invention, which are generally described and illustrated in the figures herein, may be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the invention in the claims All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

In the description of the present invention, it should be noted that the terms "set", "install", "connected", and "connected" are to be understood broadly, and may be fixed connections, for example, unless otherwise specifically defined and defined. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be internal communication between the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Referring to FIG. 1 , FIG. 1 is a video playout system 10 according to a preferred embodiment of the present invention. The system includes a broadcast terminal 100 and an encoding terminal 200. The broadcast terminal 100 can be connected to the encoding terminal 200 through the network 400. Communication, in this implementation, the network 400 can be a wireless network or a wired network.

The broadcast terminal 100 is configured to display at least one video source for playing, and configured to use the video source selected by the user as the broadcasted video source in response to the user operation. The encoding terminal 200 is configured to encode and play the video source selected by the guiding terminal 100.

In this embodiment, the navigation terminal 100 may be, but not limited to, a server, a personal computer (PC), a smart phone, a tablet computer, a personal digital assistant (PDA), and a mobile internet device ( Mobile Internet device, MID), etc.

The navigation terminal 100 can include a display device configured to display the at least one video source and an input device configured to receive user operations. The display device may include a display and a projector, and the input device may include a keyboard, a mouse, and the like; the display device and the input device may also be integrated into a form of a touch display.

Please refer to FIG. 2. FIG. 2 is a video broadcast method applied to the video playout system 10 of FIG. 1, and the steps including the steps will be described in detail below.

In step S110, the navigation terminal 100 provides a video display interface configured to display at least one video source.

The navigation terminal 100 can display the at least one video source through the display device. Preferably, in this embodiment, the video source may be a live video source.

In step S120, the navigation terminal 100 sends the video stream data corresponding to the video source selected by the user to the encoding terminal 200 in response to the user selection operation.

In this embodiment, the navigation terminal 100 can receive the user's selection operation through the input device, and use the video source selected by the user as the video source to be broadcasted, and the video stream corresponding to the video source to be broadcasted. Data is transmitted to the encoding terminal 200.

Optionally, in this embodiment, the encoding terminal 200 includes a video receiving service configured to receive video stream data. The broadcast terminal 100 can call the video receiving service of the encoding terminal 200 by using a remote procedure call protocol (RPC), and send the video stream data to an interface corresponding to the video receiving service of the encoding terminal 200. .

Since the navigation terminal 100 and the encoding terminal 200 are different electronic terminals, the encoding terminal 200 needs to pass the remote procedure calling protocol when calling the video receiving service of the encoding terminal 200.

Further, since the encoding terminal 200 is a client type of a remote procedure call protocol, the navigation terminal 100 cannot directly invoke the service in the encoding terminal 200. Therefore, in this embodiment, referring to FIG. 3, the video playout system 10 further includes a message delivery server 300 configured to perform message delivery between the broadcast terminal 100 and the encoding terminal 200.

The broadcast terminal 100 can establish a TCP connection with the information messaging server 300 as a client, and the encoding terminal 200 can also establish a TCP connection between the client and the messaging server 300. Therefore, the message transmission between the encoding terminal 200 and the navigation terminal 100 can be transited by the message delivery server 300.

Optionally, in this embodiment, the remote procedure call protocol service may be established in the messaging server 300, and the IP address of the messaging server 300 and the selected port may be introduced.

Then, the client of the remote procedure call protocol is established in the navigation terminal 100 and the encoding terminal 200, respectively, and the IP address and the port used by the messaging server 300 are respectively transmitted in the navigation terminal 100 and the encoding terminal 200. And establishing a connection between the navigation terminal 100 and the messaging server 300 and a connection between the encoding terminal 200 and the messaging server 300.

After the connection is established, a registration function may be executed in the navigation terminal 100 to register the video receiving service in a list of remote procedure call protocol service functions. In this embodiment, RpcRegisterProcedure may be adopted in the navigation terminal 100. ("on_demux_packet") registers the video receiving service, wherein on_demux_packet is the video receiving service.

Then, a corresponding function may be executed in the messaging server 300 to register the video receiving service into a list of remote procedure call protocol service functions, so that the messaging server 300 can forward the request of the video receiving service. In the present embodiment, the video receiving service may be registered in the messaging server 300 by RpcRegisterProcedureIntoServer ("on_demux_packet").

After the registration step is completed, the broadcast terminal 100 can invoke the video receiving service of the encoding terminal 200 through a remote procedure call protocol.

Optionally, when the broadcast terminal 100 sends the video stream data to the encoding terminal 200, the guiding terminal 100 may first acquire video stream data corresponding to the selected video source.

For example, in the embodiment, the navigation terminal 100 calls the add Decoding Listener method to decode the data before the video stream corresponding to the selected video source is not decoded. The interface is registered in the current video source, and the video stream data corresponding to the current video source can be obtained through the on Before Decode Packet callback method of the interface.

Then, the broadcast terminal 100 executes a remote call function Rpc Call Procedure ("on_demux_packet"), and sends a remote call request to the message delivery server 300 through a remote procedure call protocol, the remote call function including the encoding terminal 200 that needs to be called. In the video receiving service.

For example, in this embodiment, the selected video stream data enters the on Before Decode Packet function during playback by the IMedia Decoding Listener interface registered in the previous step, and then the remote call function is called in the function. The Rpc Call Procedure ("on_demux_packet") transmits the video stream data to the interface of the video receiving service corresponding to the encoding terminal 200.

The message delivery server 300 forwards the call request to the encoding terminal 200, and invokes the video receiving service, so that the encoding terminal 200 receives the video stream corresponding to the selected video source sent by the guiding terminal 100. data.

Step S130, the encoding terminal 200 encodes and broadcasts the received video stream data.

In this embodiment, the encoding terminal 200 receives the video stream data through an interface of a video receiving service, adds the video stream data to a decoding queue for decoding, and then re-encodes and broadcasts.

Based on the above design, the method provided in this embodiment separates the display and encoding and broadcasting of the multi-channel video into different execution terminals during the video broadcast process through the distributed design, so that the video playout system 10 can Coordinated operation on different terminals solves the performance bottleneck problem when the broadcast system runs on the same terminal.

Further, in order to facilitate the control of the video broadcast, please refer to FIG. 4, the method may further include step S210 and step S220.

Step S210, the navigation terminal 100 executes a remote calling function, and sends a remote calling request to the messaging server 300 through a remote procedure calling protocol, where the remote calling function includes starting broadcast in the encoding terminal 200 that needs to be called. Service or stop the broadcast service.

In this embodiment, the start broadcast service or the stop broadcast service may be registered in the encoding terminal 200 and the message delivery server 300 in advance.

For example, a registration function may be performed in the navigation terminal 100 in advance to register the start playout service or the stop playout service into a list of remote procedure call protocol service functions. For example, the start playout service may be registered in the guide terminal 100 by an Rpc Register Procedure ("begin_broadcast") function, where begin_broadcast is the start playout service; the Rpc Register may be passed in the guide terminal 100. The Procedure ("stop_broadcast") function registers the stop playout service, wherein stop_broadcast is the stop playout service.

Further, a registration function may be executed in the messaging server 300 in advance, and the start broadcast service or the stop play service is registered in a list of remote procedure call protocol service functions, so that the message delivery server 300 may forward the request to start the broadcast service or stop the broadcast service. In this embodiment, the start playout service may be registered in the messaging server 300 by an Rpc Register Procedure ("begin_broadcast") function; the Rpc Register Procedure ("stop_broadcast" may be passed in the messaging server 300) The function registers the stop broadcast service.

After the start of the broadcast service or the stop broadcast service registration is completed, the broadcast terminal 100 may invoke the start broadcast service or stop the broadcast service of the encoding terminal 200 through a remote procedure call protocol.

For example, the navigation terminal 100 calls an Rpc Call Procedure ("begin_broadcast") function to notify the encoding terminal 200 to perform live broadcast.

Alternatively, the broadcast terminal 100 invokes an Rpc Call Procedure ("stop_broadcast") function to notify the encoding terminal 200 to end the live broadcast.

Step S220, the message delivery server 300 forwards the call request to the encoding terminal 200, invokes the start broadcast service or stops the broadcast service, so that the encoding terminal 200 starts or stops the received video stream. The data is encoded and broadcast.

For example, the encoding terminal 200 executes a set_broadcast_enable(true) function of the Live Encoder in the begin_broadcast function to start video broadcasting.

Alternatively, the encoding terminal 200 executes a set_broadcast_enable (false) function of the Live Encoder in the stop_broadcast function to stop the video broadcast.

Based on the above design, the navigation terminal 100 can call the start broadcast service or stop the broadcast service of the encoding terminal 200 through a remote procedure call protocol, and can conveniently control the video broadcast.

An embodiment of the present invention further provides an electronic device, where the electronic device includes a memory and a processor, the memory is configured to store executable program code, and the processor is configured to read an executable program stored in the memory. The code causes the electronic device to perform the above-described video playout method as the above-described broadcast terminal and/or decoding terminal.

The electronic device may be a broadcast terminal or a decoding terminal in the above video playout system. In an embodiment of the present application, the electronic device may include a processor and a memory, the memory may be used to store executable program code, and the processor is configured to read executable program code stored in the memory, where The execution program code is executed by the processor such that the electronic device can perform the above-described video playout method as a broadcast terminal or a decoding terminal.

The functionality of the electronic device, if implemented in the form of a software functional module and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a processor in an electronic device to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. medium.

The embodiment of the invention further provides a readable storage medium, wherein the readable storage medium stores instructions for executing the video as the navigation terminal and/or the decoding terminal when the instruction is run on a computer. Broadcast method. In summary, the video broadcast method, system, electronic device and readable storage medium provided by the present invention separate and display multi-channel video display and coding broadcast work in a video broadcast process through distributed design. On the execution terminal, the video stream transmission and the video broadcast control are performed through the remote procedure call protocol, so that the video playout system 10 can coordinately operate on different terminals, and the performance of the solved broadcast system running on the same terminal is solved. Bottleneck problem.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may also be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and functionality of possible implementations of apparatus, methods, and computer program products according to various embodiments of the invention. operating. In this regard, each block of the flowchart or block diagram can represent a module, a program segment, or a portion of code that comprises one or more of the Executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may also occur in a different order than those illustrated in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented in a dedicated hardware-based system that performs the specified function or action. Or it can be implemented by a combination of dedicated hardware and computer instructions.

In addition, each functional module in each embodiment of the present invention may be integrated to form a separate part, or each module may exist separately, or two or more modules may be integrated to form a separate part.

The functions, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or order between them. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

The video broadcast method and system provided by the embodiments of the present invention separate the display and encoding broadcast work of the multi-channel video into different execution terminals during the video broadcast process through distributed design, so that the video playout system It can be coordinated on different terminals to solve the performance bottleneck problem when the broadcast system runs on the same terminal.

Claims

A video broadcast method is applied to a video playout system including a broadcast terminal and an encoding terminal, wherein the method includes:

The navigation terminal provides a video display interface configured to display at least one video source;

Transmitting, by the navigation terminal, video stream data corresponding to the video source selected by the user to the encoding terminal, in response to the user selection operation;

The encoding terminal encodes and broadcasts the received video stream data.
The method according to claim 1, wherein the step of transmitting the video stream data corresponding to the video source selected by the user to the encoding terminal comprises:

The navigation terminal invokes a video receiving service of the encoding terminal through a remote procedure call protocol, and sends the video stream data to an interface of a video receiving service of the encoding terminal.
The method of claim 2, wherein the video playout system further comprises a messaging server that communicates with the encoding terminal and the encoding terminal, respectively; the navigation terminal invokes the remote procedure call protocol The steps of encoding the video receiving service of the terminal include:

The navigation terminal acquires video stream data corresponding to the selected video source;

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server through a remote procedure call protocol, where the remote call function includes a video receiving service in the encoding terminal that needs to be called;

The message delivery server forwards the call request to the encoding terminal, and invokes the video receiving service, so that the encoding terminal receives the video stream data sent by the guiding terminal.
The method of claim 2, wherein the remote procedure call protocol service is established in advance in the messaging server; the method further comprising:

The navigation terminal establishes a communication connection with the messaging server, so that the navigation terminal acts as a client of the remote procedure call protocol in the messaging server;

The encoding terminal establishes a communication connection with the message delivery server such that the navigation terminal acts as another client of the remote procedure call protocol in the messaging server.
The method of claim 2, wherein the step of establishing a remote procedure call protocol service in the messaging server in advance comprises:

Establishing a remote procedure call protocol service in the messaging server, and passing in the IP address of the messaging server and the selected port;

The step of the communication terminal establishing a communication connection with the messaging server includes:

Establishing a client of the remote procedure call protocol in the navigation terminal, and transmitting an IP address of the messaging server and a used port to establish a connection between the navigation terminal and the messaging server;

The step of the encoding terminal establishing a communication connection with the message delivery server includes:

Establishing a client of the remote procedure call protocol in the encoding terminal, and transmitting the IP address of the messaging server and the port used to establish a connection between the encoding terminal and the messaging server.
The method according to claim 3, wherein after the step of establishing the connection between the navigation terminal and the messaging server, the method further comprises:

Performing a registration function in the navigation terminal, registering the video receiving service into a list of the remote procedure call protocol service functions;

The registration function is executed in the messaging server to register the video receiving service into a list of the remote procedure call protocol service functions.
The method according to claim 3, wherein the step of transmitting, by the navigation terminal, the video stream data corresponding to the video source selected by the user to the encoding terminal in response to the user selection operation comprises:

Registering the decoding process observer interface to the video source selected by the user;

The video stream data corresponding to the video source selected by the user is obtained by the observer interface of the decoding process to obtain video stream data corresponding to the video source selected by the user.
The method of claim 3, wherein the method further comprises:

The navigation terminal invokes the start broadcast service of the encoding terminal or stops the broadcast service through a remote procedure call protocol, so that the encoding terminal starts or stops encoding and broadcasting the received video stream data.
The method according to claim 4, wherein the step of the broadcast terminal calling the start broadcast service or the stop play service of the encoding terminal by using a remote procedure call protocol comprises:

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server by using a remote procedure call protocol, where the remote call function includes a start broadcast service or a stop broadcast service in the coding terminal that needs to be called. ;

The messaging server forwards the call request to the encoding terminal, invokes the start broadcast service or stops the broadcast service, so that the encoding terminal starts or stops encoding and broadcasting the received video stream data.
The method of claim 5, wherein the method further comprises:

Registering the video receiving service, starting the broadcast service, and stopping the broadcast service in the encoding terminal; and

Registering, in the messaging server, a function of forwarding the video receiving service, starting a playout service, and stopping the playout service.
A video playout system, comprising: a broadcast terminal and an encoding terminal,

The navigation terminal is configured to provide a video display interface to display at least one video source; and, in response to the user selection operation, send video stream data corresponding to the video source selected by the user to the encoding terminal;

The encoding terminal is configured to encode and play the received video stream data.
The system according to claim 7, wherein the manner in which the video stream data of the broadcast terminal is sent to the encoding terminal comprises:

The video receiving service of the encoding terminal is invoked by a remote procedure call protocol, and the video stream data is transmitted to an interface of a video receiving service of the encoding terminal.
The system according to claim 8, wherein the navigation terminal is further configured to invoke a start broadcast service or stop the broadcast service of the encoding terminal by a remote procedure call protocol, so that the encoding terminal starts or stops the pair. The received video stream data is encoded and broadcasted.
The system of claim 9, wherein the system further comprises a messaging server that communicates with the encoding terminal and the encoding terminal, respectively;

The broadcast terminal executes a remote call function, and sends a remote call request to the message delivery server by using a remote procedure call protocol, where the remote call function includes a video receiving service in the encoding terminal that needs to be called, starts a broadcast service, or Stop the broadcast service;

The messaging server forwards the call request to the encoding terminal, invokes the video receiving service, starts a playout service, or stops a playout service.
The system of claim 2, wherein a remote procedure call protocol service is established in advance in the messaging server; the broadcast terminal is further configured to establish a communication connection with the messaging server to Said broadcast terminal as a client of the messaging server;

The encoding terminal is further configured to establish a communication connection with the message delivery server such that the navigation terminal acts as another client of the messaging server;
The system of claim 2, wherein the method of establishing a remote procedure call protocol service in the messaging server in advance comprises:

Establishing a remote procedure call protocol service in the messaging server, and passing in the IP address of the messaging server and the selected port;

The step of the communication terminal establishing a communication connection with the messaging server includes:

Establishing a client of the remote procedure call protocol in the navigation terminal, and transmitting an IP address of the messaging server and a used port to establish a connection between the navigation terminal and the messaging server;

The step of the encoding terminal establishing a communication connection with the message delivery server includes:

Establishing a client of the remote procedure call protocol in the encoding terminal, and transmitting the IP address of the messaging server and the port used to establish a connection between the encoding terminal and the messaging server.
The system according to claim 3, wherein after the step of establishing a connection between the broadcast terminal and the messaging server, the broadcast terminal is further configured to perform a registration function to register the video receiving service Go to the list of remote procedure call protocol service functions;

The messaging server is further configured to execute the registration function to register the video receiving service into a list of the remote procedure call protocol service functions.
The system according to claim 3, wherein the method for transmitting the video stream data corresponding to the video source selected by the user to the encoding terminal in response to the user selection operation comprises:

Registering the decoding process observer interface to the video source selected by the user;

The video stream data corresponding to the video source selected by the user is obtained by the decoding process observer interface, so as to obtain data before the video stream corresponding to the video source selected by the user is not decoded.
An electronic device, comprising: a memory for storing executable program code, and a processor for reading executable program code stored in the memory to cause The electronic device as the above-described navigation terminal and/or decoding terminal performs the method of any one of claims 1-10.
A readable storage medium, characterized in that the readable storage medium stores instructions therein, and when the instructions are run on a computer, causing the computer to execute as the navigation terminal and/or the decoding terminal as claimed in claim 1 10 any of the methods described.