CN112968918B - Cross-domain heterogeneous large-screen mutual backup method, system and electronic equipment - Google Patents
Cross-domain heterogeneous large-screen mutual backup method, system and electronic equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
Abstract
The invention belongs to the technical field of image display, and particularly relates to a cross-domain heterogeneous large-screen mutual backup method, a cross-domain heterogeneous large-screen mutual backup system and electronic equipment, aiming at solving the problem of how to realize large-screen real-time synchronization among multiple domains; the method comprises the following steps: the display control module judges whether the screen is large in the local area or not based on the input instruction, and if so, large screen data are obtained; otherwise, the signaling forwarding module obtains large-screen data from the corresponding domain through the routing module; acquiring window information according to the data, acquiring code stream information through a resource management module of the current domain, judging whether the information is local domain resource, and if so, using the code stream information; if not, the resource management module of the current domain sends a calling instruction to the corresponding domain, and the audio/video forwarding module of the corresponding domain acquires original code stream information from the corresponding resource management module and forwards the original code stream information to the resource management module of the current domain; synchronizing on a large screen in real time based on the acquired code stream information; the invention can realize real-time synchronization of large screens among a plurality of domains.
Description
Technical Field
The invention belongs to the technical field of image display, and particularly relates to a cross-domain heterogeneous large-screen mutual backup method, a cross-domain heterogeneous large-screen mutual backup system and electronic equipment.
Background
The spliced large screen is widely applied to various social fields, and with the wide construction of a command hall and the popularization of a distributed system, the collaborative interaction demand based on audio and video communication is increasing day by day. The existing large-screen synchronization system is mainly large-screen interaction under a local area network, cooperative interaction between different regions cannot be achieved, videos after collection are transmitted, synchronization of large screens cannot be achieved while high definition is kept, and the number of synchronized screens is limited.
Disclosure of Invention
In order to solve the problem, namely how to realize the real-time synchronization of large screens among a plurality of domains, the invention provides a method, a system and electronic equipment based on cross-domain heterogeneous large screen mutual backup.
The invention provides a cross-domain heterogeneous large-screen mutual backup method, which comprises the following steps: step S100, the display control module judges whether the screen is large in the local area or not based on the input instruction, and if so, the large screen data is directly acquired; otherwise, the signaling forwarding module acquires large-screen data from the corresponding domain through the routing module; the signaling forwarding module is in communication connection with the display control module, and the routing module is in communication connection with the signaling forwarding module.
Step S200, calculating a zoom ratio according to the acquired large-screen data; the scaling ratios include a landscape scaling ratio and a portrait scaling ratio.
Step S300, calculating the size of a window according to the calculated scaling ratio, wherein the size of the window comprises the width and the height of the window; wherein, the window width = original width × horizontal scaling ratio, and the window height = original height × vertical scaling ratio.
Step S400, code stream information is obtained through a resource management module of the current domain according to the signal source resource of the window, a display control module of the current domain judges whether the code stream information is the local domain resource, and if yes, the code stream information is directly used; if not, the resource management module of the current domain sequentially calls the audio and video forwarding module of the current domain, and the routing module sends a calling instruction to the corresponding domain, and the audio and video forwarding module of the corresponding domain acquires code stream information of the corresponding resource from the resource management module of the corresponding domain based on the calling instruction, forwards the corresponding code stream information and transmits the code stream information to the resource management module of the current domain; the audio and video forwarding module of the current domain is in communication connection with the resource management module of the current domain, the routing module of the current domain is in communication connection with the audio and video forwarding module of the current domain, the audio and video forwarding module of the corresponding domain is in communication connection with the resource management module of the corresponding domain, and the routing module of the current domain is in communication connection with the routing module of the corresponding domain.
And S500, the display control module in the current domain performs large-screen windowing operation based on the acquired code stream information and the window size so as to display a picture.
In some preferred embodiments, when the input command changes in real time, the following steps are performed: step S600, the display control module of the current domain judges whether the display control module is an instruction corresponding to the current domain based on the input updating instruction, if so, the step S700 is executed; if not, go to step S610.
Step S610, the signaling forwarding module in the current domain calls the routing module in the current domain to send a change input instruction to the other domains, and the routing module in the current domain obtains the path information to the routing module in the other domains.
Step S620, the display control module of the current domain judges whether an available path exists or not based on the acquired path information, and if not, the process is finished; if yes, go to step S630.
In some preferred embodiments, in step S630, the signaling forwarding module in the current domain sends the input instruction to the signaling forwarding modules in other domains, the display control modules in other domains determine whether the input instruction is an instruction corresponding to the local domain in other domains, and if not, the step S610 is executed; if yes, go to step S640; the signaling forwarding module of the current domain is in communication connection with the signaling forwarding modules of other domains.
In some preferred embodiments, in step S640, the signaling forwarding modules in other domains receive the instruction and forward the instruction to the corresponding display control module; the corresponding display control module receives the input instruction, judges whether the input instruction is an instruction corresponding to the other domain, and if not, returns to execute the step S610; if yes, go to step S650.
In some preferred embodiments, step S650 determines whether the current large screen information is matched with the current real-time playing large screen information, and if not, the process is ended; if yes, adjusting the current screen number according to the input instruction to realize real-time synchronization.
In some preferred embodiments, step S700 determines whether the current large screen information is matched with the current real-time playing large screen information, and if not, the process is ended; if yes, adjusting the current screen number according to the input instruction to realize real-time synchronization.
In some preferred embodiments, the lateral scaling ratio = target large screen total width/original large screen total width.
The vertical zoom ratio = target large screen total height/original large screen total height.
The invention provides a cross-domain heterogeneous large-screen mutual backup system, which comprises a display control module, a decoder, a signaling forwarding module, a resource management module, a routing module and an audio and video forwarding module, wherein the signaling forwarding module and the resource management module are in communication connection with the display control module; the decoder is in communication connection with the display control module; the audio and video forwarding module is in communication connection with the resource management module; the audio and video forwarding module and the signaling forwarding module are in communication connection with the routing module.
The display control module is configured to acquire a network stream address corresponding to a signal source to be displayed on a large screen through the resource management module, and decode an image displayed on the screen through the decoder.
The decoder is configured to decode the network signal to convert into an electrical signal.
The signaling forwarding module is configured to forward the control signaling outside the domain and trigger another domain to operate.
The resource management module is configured to uniformly arrange resources capable of being displayed, formulate uniform resource positioning and provide a uniform code stream information acquisition function; the routing module is configured to locate a resource, compute an arrival path and a corresponding request address for another domain.
The audio and video forwarding module is configured to forward audio and video resources in a cross-domain manner.
A third aspect of the present invention provides an electronic device comprising: at least one processor; and a memory communicatively coupled to at least one of the processors; wherein the memory stores instructions executable by the processor for execution by the processor to implement any of the above cross-domain heterogeneous large screen mutual backup based methods.
In a fourth aspect of the present invention, a computer-readable storage medium is provided, where computer instructions are stored in the computer-readable storage medium for execution by the computer to implement any one of the above methods based on cross-domain heterogeneous large-screen mutual backup.
According to the cross-domain heterogeneous large-screen mutual backup-based method, the cross-domain heterogeneous large-screen mutual backup-based system and the electronic equipment, rapid configuration is set, operation is convenient, and high-definition real-time synchronization of large-screen images among multiple domains can be realized.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings.
Fig. 1 is a logic flow diagram of a specific embodiment of a cross-domain heterogeneous large-screen mutual backup-based method in the present invention.
Fig. 2 is a logic flow diagram of an embodiment of the method for cross-domain heterogeneous large-screen mutual backup based on input instruction change according to the present invention.
FIG. 3 is a logic flow diagram illustrating an embodiment of the input command of FIG. 2 as a user action.
Fig. 4 is a schematic composition diagram of a system based on cross-domain heterogeneous large-screen mutual backup according to an embodiment of the present invention.
FIG. 5 is a block diagram of a computer system of a server for implementing embodiments of the method, system, and apparatus of the present application.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The invention provides a cross-domain heterogeneous large-screen mutual backup method, which comprises the following steps: step S100, the display control module judges whether the screen is large in the local area or not based on the input instruction, and if so, the large screen data is directly acquired; if not, triggering a signaling forwarding module to obtain large-screen data from a corresponding domain through a routing module; the signaling forwarding module is in communication connection with the display control module, and the routing module is in communication connection with the signaling forwarding module; step S200, calculating a zoom ratio according to the acquired large-screen data; the zoom ratio comprises a horizontal zoom ratio and a vertical zoom ratio; step S300, calculating the size and the position of a window according to the calculated zoom ratio, wherein the size of the window comprises the width and the height of the window; wherein, the window width = original width × transverse scaling ratio, and the window height = original height × longitudinal scaling ratio; the window position is as follows: updated X-coordinate = original starting X-coordinate × horizontal scaling ratio, updated Y-coordinate = Y-coordinate × vertical scaling ratio; step S400, code stream information is obtained through a resource management module of the current domain according to the signal source resource of the window, a display control module of the current domain judges whether the code stream information is the local domain resource, and if yes, the code stream information is directly used; if not, the resource management module of the current domain sequentially calls the audio and video forwarding module of the current domain, and the routing module sends a calling instruction to the corresponding domain, and the audio and video forwarding module of the corresponding domain acquires code stream information of the corresponding resource from the resource management module of the corresponding domain based on the calling instruction, forwards the corresponding code stream information and transmits the code stream information to the resource management module of the current domain; the audio and video forwarding module of the current domain is in communication connection with the resource management module of the current domain, the routing module of the current domain is in communication connection with the audio and video forwarding module of the current domain, the audio and video forwarding module of the corresponding domain is in communication connection with the resource management module of the corresponding domain, and the routing module of the current domain is in communication connection with the routing module of the corresponding domain; and S500, the display control module in the current domain performs large-screen windowing operation based on the acquired code stream information and the window size so as to display a picture.
The invention provides a cross-domain heterogeneous large-screen mutual backup system, which comprises a display control module, a decoder, a signaling forwarding module, a resource management module, a routing module and an audio and video forwarding module, wherein the signaling forwarding module and the resource management module are in communication connection with the display control module; the decoder is in communication connection with the display control module; the audio and video forwarding module is in communication connection with the resource management module; the audio and video forwarding module and the signaling forwarding module are in communication connection with the routing module; the display control module is configured to acquire a network stream address corresponding to a signal source to be displayed on a large screen through the resource management module, and decode an image displayed on the screen through the decoder; the decoder is configured to decode the network signal to convert into an electrical signal; the signaling forwarding module is configured to forward the control signaling outside the domain and trigger another domain to operate; the resource management module is configured to uniformly arrange resources capable of being displayed, formulate uniform resource positioning and provide a uniform code stream information acquisition function; the routing module is configured to locate the resource and calculate an arrival path and a corresponding request address of another domain; the audio and video forwarding module is configured to forward audio and video resources across domains.
The invention is further described with reference to the following detailed description of embodiments with reference to the accompanying drawings.
Referring to fig. 1, a schematic logic flow diagram of a specific embodiment of a cross-domain heterogeneous large-screen mutual backup-based method according to the present invention is shown, and a first aspect of the present invention provides a cross-domain heterogeneous large-screen mutual backup-based method, which includes the following steps: step S100, the display control module judges whether the current domain is a large screen (namely whether the current domain is instruction information corresponding to the current domain) based on the input instruction, and if so, the display control module directly acquires large screen data; otherwise, triggering a signaling forwarding module to obtain large-screen data from the corresponding domain through a routing module; the signaling forwarding module is in communication connection with the display control module, and the routing module is in communication connection with the signaling forwarding module.
Step S200, calculating a zoom ratio according to the acquired large-screen data and the current large-screen information; the zoom ratio comprises a horizontal zoom ratio and a vertical zoom ratio; wherein, the horizontal scaling ratio = target large screen total width/original large screen total width; vertical zoom ratio = target large screen total height/original large screen total height; it should be noted that, in the current domain, the current large screen is the large screen corresponding to the current domain, and in other domains, the current large screen is the large screen corresponding to other domains.
Step S300, calculating the size and the position of a window according to the calculated scaling ratio, wherein the size of the window comprises the width and the height of the window; wherein, the window width = original width × transverse scaling ratio, and the window height = original height × longitudinal scaling ratio; the window position is as follows: updated X-coordinate = original starting point X-coordinate X lateral scaling ratio, updated Y-coordinate = Y-coordinate X longitudinal scaling ratio.
Step S400, code stream information is obtained through a resource management module of the current domain according to the signal source resource of the window, a display control module of the current domain judges whether the code stream information is the local domain resource, and if yes, the code stream information is directly used; if not, the resource management module of the current domain sequentially calls the audio and video forwarding module of the current domain, and the routing module sends a calling instruction to the corresponding domain, and the audio and video forwarding module of the corresponding domain acquires code stream information of the corresponding resource from the resource management module of the corresponding domain based on calling information in the calling instruction, and forwards the corresponding code stream information to the resource management module of the current domain; the audio and video forwarding module of the current domain is in communication connection with the resource management module of the current domain, the routing module of the current domain is in communication connection with the audio and video forwarding module of the current domain, the audio and video forwarding module of the corresponding domain is in communication connection with the resource management module of the corresponding domain, and the routing module of the current domain is in communication connection with the routing module of the corresponding domain.
And S500, the display control module in the current domain performs large-screen windowing operation based on the acquired code stream information and the window size so as to display a picture.
With further reference to fig. 2, when the input command changes in real time (i.e., when the real-time large screen information changes), the following steps are performed: step S600, the display control module of the current domain judges whether the display control module is an instruction corresponding to the current domain based on the input updating instruction, if so, the step S700 is executed; if not, go to step S610.
Step S610, the signaling forwarding module in the current domain calls the routing module in the current domain to send a change input instruction (i.e. an input update instruction) to the other domain, and the routing module in the current domain obtains the path information to the routing module in the other domain.
Step S620, the display control module of the current domain judges whether an available path exists or not based on the acquired path information, and if not, the process is finished; if yes, go to step S630.
Further, in step S630, the signaling forwarding module in the current domain sends the input instruction to the signaling forwarding modules in other domains, and the display control modules in other domains determine whether the input instruction is an instruction corresponding to the local domain of other domains (i.e., whether the operation of other domains can be triggered), and if not, return to step S610 and continue to search for a plurality of domains matched with each other; if yes, go to step S640; the signaling forwarding module of the current domain is in communication connection with the signaling forwarding modules of other domains.
Further, in step S640, the signaling forwarding modules in other domains receive the instruction and forward the instruction to the corresponding display control module; the corresponding display control module receives the input instruction, and determines whether the instruction is an instruction corresponding to another domain (because the instruction in the corresponding another domain can be triggered to include a plurality of types, it is further determined whether the instruction is an instruction matched with the large screen information corresponding to the current domain in this step), if not, the step returns to execute step S610; if yes, go to step S650.
Further, step S650 determines whether the current large screen information is matched with the current real-time playing large screen information, and if not, the process is ended; if yes, adjusting the current screen number according to the input instruction to realize real-time synchronization.
In the embodiment, large-screen real-time synchronization among a plurality of domains can be realized, and the operation is convenient and quick.
Step S700 is to judge whether the large screen information is matched with the current real-time playing large screen information, if not, the process is ended; if yes, adjusting the current screen number according to the input instruction to realize real-time synchronization.
Referring to fig. 3 together with fig. 2, fig. 3 is a logic flow diagram of a specific embodiment when the input instruction in fig. 2 is a user operation, and when a user operates a large screen on an operation interface, the user pops up a synchronous large screen selection list through a synchronous button; the current window layout of the large screen and the currently displayed signal source name can be displayed in the list; clicking confirmation to synchronize after selecting a certain large screen; the synchronization logic is executed, i.e. the predefined flow is executed. In this embodiment, the predefined flow is a flow chart corresponding to fig. 2.
Referring to fig. 4, a schematic composition diagram of an embodiment of a cross-domain heterogeneous large-screen mutual backup based system according to the present invention is shown; the invention provides a cross-domain heterogeneous large-screen mutual backup system, which comprises a display control module, a decoder, a signaling forwarding module, a resource management module, a routing module and an audio and video forwarding module, wherein the signaling forwarding module and the resource management module are in communication connection with the display control module; the decoder is in communication connection with the display control module; the audio and video forwarding module is in communication connection with the resource management module; the audio and video forwarding module and the signaling forwarding module are in communication connection with the routing module; the display control module can acquire a network stream address corresponding to a signal source to be displayed on a large screen through the resource management module and decode an image displayed on the screen through the decoder; the network signal can also be converted into an electric signal through the decoder connection decoding array and then displayed on a screen.
The decoder is responsible for decoding the network signal to convert it into an electrical signal.
The signaling forwarding module is responsible for forwarding the control signaling outside the domain and triggering another domain to operate.
The resource management module is responsible for uniformly arranging resources capable of being displayed, formulating uniform resource positioning and providing a uniform code stream information acquisition function.
And the routing module is responsible for calculating an arrival path and a corresponding request address of another domain after positioning the resource.
The audio and video forwarding module is responsible for forwarding the audio and video resources across domains.
By the method, the system and the electronic equipment based on cross-domain heterogeneous large-screen mutual backup, large-screen synchronous support layout synchronous change can be realized; the scheduling mode disclosed by the invention does not need to apply for sharing some resources to the server, but selects large-screen automatic scheduling synchronization, and can effectively reduce the operation complexity; the scheme disclosed by the invention supports the situation that the two networks cannot be directly communicated and need to be transferred through a third party domain, and realizes convenient operation and real-time synchronization of different domains. In addition, the invention makes the landing of the signal, namely if there are many groups of large screens to synchronize the same screen of the far-end locally, the scheme provided by the invention will first drop the far-end signal to the local gateway, then the local gateway copies the far-end signal, reduces the flow of the wide area network or the network switching between the domains, thereby realizing the synchronization of more multi-channel signals.
An electronic apparatus according to a third embodiment of the present invention includes: at least one processor; and a memory communicatively coupled to at least one of the processors; wherein the memory stores instructions executable by the processor for execution by the processor to implement any of the above cross-domain heterogeneous large screen mutual backup based methods.
A computer-readable storage medium of a fourth embodiment of the present invention stores computer instructions for execution by the computer to implement the cross-domain heterogeneous large-screen mutual backup based method described in any one of the above.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and related descriptions of the storage device and the processing device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Reference is now made to FIG. 5, which illustrates a block diagram of a computer system of a server for implementing embodiments of the method, system, and apparatus of the present application. The server shown in fig. 5 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 5, the computer system includes a Central Processing Unit (CPU)601, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 602 or a program loaded from a storage section 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data necessary for system operation are also stored. The CPU 601, ROM 602, and RAM 603 are connected to each other via a bus 604. An Input/Output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output section 607 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. The driver 610 is also connected to the I/O interface 605 as needed. A removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 610 as necessary, so that a computer program read out therefrom is mounted in the storage section 608 as necessary.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 609, and/or installed from the removable medium 611. The computer program performs the above-described functions defined in the method of the present application when executed by a Central Processing Unit (CPU) 601. It should be noted that the computer readable medium mentioned above in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, 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, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (6)
1. A cross-domain heterogeneous large-screen mutual backup method is characterized by comprising the following steps:
step S100, the display control module judges whether the screen is large in the local area or not based on the input instruction, and if so, the large screen data is directly acquired; otherwise, the signaling forwarding module acquires large-screen data from the corresponding domain through the routing module; the signaling forwarding module is in communication connection with the display control module, and the routing module is in communication connection with the signaling forwarding module;
step S200, calculating a zoom ratio according to the acquired large-screen data; the zoom ratio comprises a landscape zoom ratio and a portrait zoom ratio;
step S300, calculating the size of a window according to the calculated scaling ratio, wherein the size of the window comprises the width and the height of the window; wherein, the window width = original width × transverse scaling ratio, and the window height = original height × longitudinal scaling ratio;
step S400, code stream information is obtained through a resource management module of the current domain according to the signal source resource of the window, a display control module of the current domain judges whether the code stream information is the local domain resource, and if yes, the code stream information is directly used; if not, the resource management module of the current domain sequentially calls the audio and video forwarding module of the current domain, and the routing module sends a calling instruction to the corresponding domain, and the audio and video forwarding module of the corresponding domain acquires code stream information of the corresponding resource from the resource management module of the corresponding domain based on the calling instruction, forwards the corresponding code stream information and transmits the code stream information to the resource management module of the current domain; the audio and video forwarding module of the current domain is in communication connection with the resource management module of the current domain, the routing module of the current domain is in communication connection with the audio and video forwarding module of the current domain, the audio and video forwarding module of the corresponding domain is in communication connection with the resource management module of the corresponding domain, and the routing module of the current domain is in communication connection with the routing module of the corresponding domain;
and S500, the display control module in the current domain performs large-screen windowing operation based on the acquired code stream information and the window size so as to display a picture.
2. The method for mutual backup based on cross-domain heterogeneous large screens according to claim 1, characterized in that when the input command changes in real time, the following steps are executed:
step S600, the display control module of the current domain judges whether the display control module is an instruction corresponding to the current domain based on the input updating instruction, if so, the step S700 is executed; if not, go to step S610;
step S610, the signaling forwarding module of the current domain calls the routing module of the current domain to send a change input instruction to other domains, and the routing module of the current domain acquires the path information reaching the routing modules of other domains;
step S620, the display control module of the current domain judges whether an available path exists or not based on the acquired path information, and if not, the process is finished; if yes, go to step S630;
step S630, the signaling forwarding module of the current domain sends an input instruction to the signaling forwarding modules of other domains, the display control modules of other domains judge whether the input instruction is an instruction corresponding to the local domain of other domains, and if not, the step S610 is returned to be executed; if yes, go to step S640; the signaling forwarding module of the current domain is in communication connection with the signaling forwarding modules of other domains;
step S640, the signaling forwarding modules in other domains receive the instruction and forward the instruction to the corresponding display control modules; the corresponding display control module receives the input instruction, judges whether the input instruction is an instruction corresponding to the other domain, and if not, returns to execute the step S610; if yes, go to step S650;
step S650, judging whether the large screen information is matched with the current real-time playing large screen information, if not, ending; if yes, adjusting the number of the current screens according to the input instruction to realize real-time synchronization;
step S700, judging whether the large screen information is matched with the current real-time playing large screen information, if not, ending; if yes, adjusting the current screen number according to the input instruction to realize real-time synchronization.
3. The method for cross-domain heterogeneous large-screen mutual backup based on claim 1, wherein the horizontal scaling ratio = target large-screen total width/original large-screen total width;
the vertical zoom ratio = target large screen total height/original large screen total height.
4. A system based on cross-domain heterogeneous large screen mutual backup is characterized by comprising a display control module, a decoder, a signaling forwarding module, a resource management module, a routing module and an audio and video forwarding module, wherein the signaling forwarding module and the resource management module are in communication connection with the display control module; the decoder is in communication connection with the display control module; the audio and video forwarding module is in communication connection with the resource management module; the audio and video forwarding module and the signaling forwarding module are in communication connection with the routing module;
the display control module is configured to acquire a network stream address corresponding to a signal source to be displayed on a large screen through the resource management module, and decode an image displayed on the screen through the decoder; the display control module judges whether the local area is large screen or not based on the input instruction, and if so, the large screen data is directly acquired; otherwise, the signaling forwarding module acquires large-screen data from the corresponding domain through the routing module;
the decoder is configured to decode the network signal to convert into an electrical signal;
the signaling forwarding module is configured to forward the control signaling outside the domain and trigger another domain to operate;
the resource management module is configured to uniformly arrange resources capable of being displayed, formulate uniform resource positioning and provide a uniform code stream information acquisition function;
the routing module is configured to locate a resource, calculate an arrival path of another domain and a corresponding request address;
the audio and video forwarding module is configured to forward audio and video resources in a cross-domain manner.
5. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to at least one of the processors; wherein the memory stores instructions executable by the processor for execution by the processor to implement the method of any of claims 1-3 based on cross-domain heterogeneous large screen mutual readiness.
6. A computer-readable storage medium storing computer instructions for execution by the computer to implement the method of any one of claims 1-3 based on cross-domain heterogeneous large-screen mutual backup.
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