CN112540735A - Multi-screen synchronous display method, device and system and computer storage medium - Google Patents
Multi-screen synchronous display method, device and system and computer storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a multi-screen synchronous display method, a multi-screen synchronous display device, a multi-screen synchronous display system and a computer storage medium. The multi-screen synchronous display method comprises the following steps: creating a scene; creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene; creating an expanded output view for an expanded output display screen and associating the expanded output view with the scene; generating a first display area of the extended output view according to the resolution of the extended output display screen; generating a second display area corresponding to the first display area in the pre-monitoring graph; and adding a primitive to be displayed to a second display area of the pre-monitored graph so that the primitive to be displayed is synchronously displayed in the first display area and the second display area. The embodiment of the invention can realize the synchronous display of the pre-monitoring display screen and the expanded output display screen under the condition of not needing a complex synchronous display mechanism.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a multi-screen synchronous display method, a multi-screen synchronous display apparatus, a multi-screen synchronous display system, and a computer storage medium.
Background
In the field of display technology, it is generally required to process audio and video by using a multimedia player, such as audio and video playing software, which generally involves a pre-monitoring area and an output area, wherein the pre-monitoring area can edit an output picture, such as moving, rotating, zooming, aligning, adsorbing and the like. The output area is only used to display the final picture effect. The multimedia player requires the synchronous playing of the picture of the pre-monitoring area and the picture of the output area. In the prior art, a synchronous playing control technology is usually adopted to realize the display synchronization of a pre-monitoring area and an output area, however, the high complexity of the synchronous playing control technology causes great difficulty in the realization of the synchronization.
Disclosure of Invention
Therefore, to overcome the defects and shortcomings in the prior art, embodiments of the present invention provide a multi-screen synchronous display method, a multi-screen synchronous display device, a multi-screen synchronous display system, and a computer storage medium, which can implement synchronous display of a pre-monitor display screen and an extended output display screen without a complicated synchronous display mechanism.
On one hand, a multi-screen synchronous display method provided by the embodiment of the invention comprises the following steps: creating a scene; creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene; creating an expanded output view for an expanded output display screen and associating the expanded output view with the scene; generating a first display area of the extended output view according to the resolution of the extended output display screen; generating a second display area corresponding to the first display area in the pre-monitoring graph; and adding a primitive to be displayed to a second display area of the pre-monitored graph so that the primitive to be displayed is synchronously displayed in the first display area and the second display area.
In the above scheme, by creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene and creating an extended output view for an extended output display screen and associating the extended output view with the scene, in this way, it is achieved that the pre-monitoring graph and the extended output view are associated with the same scene, and then generating a first display area of the extended output view according to the resolution of the extended output display screen and generating a second display area corresponding to the first display area in the pre-monitoring graph, so that the graphics primitives to be displayed added into the second display area of the pre-monitoring graph are synchronously displayed in the first display area and the second display area, the synchronization mechanism provided by the embodiment of the invention can accurately realize synchronization without realizing a complex synchronization mechanism.
In an embodiment of the present invention, before the creating the expanded output view for the expanded output display screen, the multi-screen synchronous display method further includes: detecting whether the extended output display screen exists or not; and when the extended output display screen is detected, acquiring the resolution of the extended output display screen.
In one embodiment of the invention, the primitive to be displayed comprises a video or an image.
On the other hand, an embodiment of the present invention provides a multi-screen synchronous display device, including: a scene creation module for creating a scene; the pre-monitoring graph creating and associating module is used for creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene; an extended output view creation and association module to create an extended output view for an extended output display screen and associate the extended output view with the scene; a first display area generating module, configured to generate a first display area in the extended output view according to a resolution of the extended output display screen; a second display area generating module, configured to generate a second display area corresponding to the first display area in the pre-monitored graph; and the primitive adding and displaying module is used for adding a primitive to be displayed to a second display area of the pre-monitored graph so as to enable the first display area and the second display area to synchronously display the primitive to be displayed.
In the above scheme, by creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene and creating an extended output view for an extended output display screen and associating the extended output view with the scene, in this way, it is achieved that the pre-monitoring graph and the extended output view are associated with the same scene, and then generating a first display area of the extended output view according to the resolution of the extended output display screen and generating a second display area corresponding to the first display area in the pre-monitoring graph, so that the graphics primitives to be displayed added into the second display area of the pre-monitoring graph are synchronously displayed in the first display area and the second display area, the synchronization mechanism provided by the embodiment of the invention can accurately realize synchronization without realizing a complex synchronization mechanism.
In one embodiment of the present invention, the multi-screen synchronous display apparatus further includes: the extended output display screen detection module is used for: detecting whether the extended output display screen exists or not; and when the extended output display screen is detected, acquiring the resolution of the extended output display screen.
In one embodiment of the invention, the primitive to be displayed comprises a video or an image.
In another aspect, an embodiment of the present invention provides a multi-screen synchronous display system, including: a memory and a processor coupled to the memory; the memory stores a computer program, and the processor executes any one of the multi-screen synchronous display methods when running the computer program.
In another aspect, an embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer-executable instructions, where the computer-executable instructions are configured to perform any one of the foregoing multi-screen synchronous display methods.
One or more of the above technical solutions may have the following advantages or beneficial effects: by creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene and creating an extended output view for an extended output display screen and associating the extended output view with the scene, in this way, associating the pre-monitoring graph and the extended output view with the same scene is achieved, and further, by generating a first display region of the extended output view according to the resolution of the extended output display screen and generating a second display region corresponding to the first display region in the pre-monitoring graph, primitives to be displayed added to the second display region of the pre-monitoring graph are synchronously displayed in the first display region and the second display region, the synchronization mechanism provided by the embodiment of the invention can accurately achieve synchronization without implementing a complex synchronization mechanism.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a multi-screen synchronous display method according to a first embodiment of the present invention.
Fig. 2 is a flowchart illustrating another multi-screen synchronous display method according to a first embodiment of the present invention.
Fig. 3 is a schematic diagram of the connection between the PC and the extended output display according to the first embodiment of the present invention.
FIG. 4 is a block diagram of a multi-screen synchronous display device according to a second embodiment of the present invention.
FIG. 5 is a block diagram of another multi-screen synchronous display device according to a second embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a multi-screen synchronous display system according to a third embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a computer storage medium according to a fourth 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.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a flowchart of a multi-screen synchronous display method according to a first embodiment of the invention is shown.
Specifically, the multi-screen synchronous display method provided by the embodiment of the present invention includes, for example:
s102: creating a scene;
s104: creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene;
s106: creating an expanded output view for an expanded output display screen and associating the expanded output view with the scene;
s108: generating a first display area of the extended output view according to the resolution of the extended output display screen;
s110: generating a second display area corresponding to the first display area in the pre-monitoring graph; and
s112: adding a primitive to be displayed to a second display area of the pre-monitored graph so that the primitive to be displayed is synchronously displayed in the first display area and the second display area.
In an embodiment of the present invention, as shown in fig. 2, before step S106, the multi-screen synchronous display method further includes step S105: detecting whether the extended output display screen exists or not; and when the extended output display screen is detected, acquiring the resolution of the extended output display screen.
In an embodiment of the invention, the primitive to be displayed comprises a video or an image.
To facilitate understanding of the embodiment of the present invention, a multi-screen synchronous display method according to the embodiment of the present invention is described in detail below with reference to fig. 3, where fig. 3 is a schematic connection diagram between a PC and an extended output display screen. The multi-screen synchronous display method provided by the embodiment of the invention can be realized by software installed on a PC (personal computer), such as audio and video playing control software.
The multi-screen synchronous display method provided by the first embodiment of the invention is realized under a QT framework, and the QT provides a view/scene framework to solve the two-dimensional image drawing operation management. The following describes views and scenes related to the embodiment of the present invention, where the Graphics View class (Graphics View) mainly implements a drawing related setting and a human-computer interaction interface of a two-dimensional graphic, and provides a visual drawing area for a Scene, and the Graphics Scene class (Graphics Scene) serves as a Graphics element (primitive for short) container, provides a uniform Graphics element management interface, and manages mouse and keyboard events in a unified manner and element states in a related manner. Based on the characteristics of the QT frame, the multi-screen synchronous display method provided by the embodiment of the invention is realized under the QT frame, so that the multi-screen synchronous display method can be used in a cross-platform manner and has a wide application range.
In this embodiment of the present invention, the PC needs to be configured to be connected to the extended output display screen in the extended mode, and it may be connected through an HDMI (High Definition Multimedia Interface) line, for example, although the connection between the PC and the extended output display screen may also be connected through another method other than the HDMI line, which is not limited herein. The extended output display screen can be, for example, an LED display screen, an LCD display screen, or other display devices.
Firstly, audio and video broadcasting and controlling software installed on a PC creates a scene, creates a pre-monitoring graph for a pre-monitoring display screen and associates the pre-monitoring graph with the scene. And then, the audio and video playing and controlling software creates an extended output view for the extended output display screen and associates the extended output view with the scene. And then, the audio and video playing and controlling software generates a first display area of the extended output view according to the resolution of the extended output display screen, and the first display area can correspond to all or part of the extended output display screen according to the resolution of the extended output display screen. The first display area is generated by the resolution of the output display screen, and the flexibility of displaying the graphic elements is improved. And then, the audio and video playing and controlling software generates a second display area corresponding to the first display area in the pre-monitoring picture, wherein the second display area corresponding to the first display area is generated in the pre-monitoring picture, so that the graphic elements presented in the first display area can be presented in the second display area. The primitive may be, for example, a video or an image, and of course, the primitive may also be a line, a point, or a circle in addition to the video or the image, and the primitive may include all relevant elements used in audio and video editing, and the embodiment of the present invention is not specifically limited herein. Finally, the audio and video playing and controlling software adds the primitive to be displayed to the second display area of the pre-monitoring picture so as to enable the first display area and the second display area to synchronously display the primitive to be displayed, and therefore synchronous display between the pre-monitoring display screen and the extended output display screen of the PC is achieved. The process of adding the primitive to be displayed may be to add the primitive to be displayed into the second display area in response to an operation of moving the primitive to be displayed into the second display area from an editing area corresponding to the audio/video playing and controlling software by a user, or the audio/video playing and controlling software may automatically obtain the primitive to be displayed from the server or the PC and then automatically add the primitive to be displayed into the second display area.
In addition, before an extended output view is created for the extended output display screen, the audio and video playing and controlling software also detects whether the extended output display screen exists or not; and when the extended output display screen is detected, acquiring the resolution of the extended output display screen. It should be noted that the process of detecting whether the extended output display screen exists may be performed in real time after the audio/video broadcast control software is started, and the embodiment of the present invention is not specifically limited herein. In addition, when the extended output display screen is detected, the audio and video playing and controlling software also obtains parameters such as the equipment number of the extended output display screen from the extended output display screen.
The audio playing and controlling software can also realize real-time editing of the graphics primitives in the second display area of the pre-monitored picture, and the graphics primitives after editing processing can be synchronously displayed on the first display area, so that synchronous display of the pre-monitored display screen and the expanded output display screen is realized.
Although only one extended output display screen is shown in fig. 3 to be connected to the PC so as to implement synchronous display between the PC and the extended output display screen, in practical applications, a plurality of extended output display screens may be respectively connected to the PC so as to implement synchronous display between the plurality of extended output display screens and the display screen of the PC. Here, the extended output display screen may be a general display device, an LED display screen, and the like, and the embodiment of the present invention is not particularly limited. When a plurality of extended output display screens are connected with a PC, the audio and video playing and controlling software needs to create corresponding extended output views for each extended output display screen one by one and associate each extended output view with the scene; generating a plurality of display areas corresponding to the extended output views according to the resolution of each extended output display screen; and then generating a plurality of display areas corresponding to the plurality of display areas of each extended output display screen in the pre-monitoring graph, wherein the plurality of display areas correspond to the plurality of display areas of each extended output display screen one by one, so that the synchronous display of the graphics primitives of the display areas of each corresponding extended output display screen can be realized by displaying the graphics primitives in each display area of the pre-monitoring display screen.
In summary, the embodiment of the present invention creates a pre-monitoring graph for a pre-monitoring display screen and associates the pre-monitoring graph with the scene and creates an extended output view for an extended output display screen and associates the extended output view with the scene, in this way, it is achieved that the pre-monitoring graph and the extended output view are associated with the same scene, and then generating a first display area of the extended output view according to the resolution of the extended output display screen and generating a second display area corresponding to the first display area in the pre-monitoring graph, so that the graphics primitives to be displayed added into the second display area of the pre-monitoring graph are synchronously displayed in the first display area and the second display area, the synchronization mechanism provided by the embodiment of the invention can accurately realize synchronization without realizing a complex synchronization mechanism.
[ second embodiment ]
Referring to fig. 4, a multi-screen simultaneous display device 200 according to a second embodiment of the present invention is provided. The multi-screen simultaneous display apparatus 200 includes, for example, a scene creation module 202, a pre-monitor graph creation and association module 204, an extended output view creation and association module 206, a first display region generation module 208, a second display region generation module 210, and a primitive addition and display module 212.
In particular, the scene creation module 202 is used to create a scene.
The pre-monitor graph creation and association module 204 is configured to create a pre-monitor graph for a pre-monitor display screen and associate the pre-monitor graph with the scene.
The extended output view creation and association module 206 is used to create an extended output view for an extended output display screen and associate the extended output view with the scene.
The first display area generating module 208 is configured to generate a first display area of the extended output view according to a resolution of the extended output display screen.
The second display area generating module 210 is configured to generate a second display area corresponding to the first display area in the pre-monitored graph.
The primitive adding and displaying module 212 is configured to add a primitive to be displayed to a second display area of the pre-monitored graph, so that the primitive to be displayed is synchronously displayed in the first display area and the second display area.
In an embodiment of the present invention, as shown in fig. 5, the multi-screen synchronous display device 200 further includes an extended output display screen detection module for: detecting whether the extended output display screen exists, and acquiring the resolution of the extended output display screen when the extended output display screen is detected.
In an embodiment of the invention, the primitive to be displayed comprises a video or an image.
For the specific operation and technical effects between the modules in the multi-screen synchronous display device 200 in the present embodiment, reference is made to the description of the first embodiment.
[ third embodiment ]
As shown in fig. 6, a multi-screen synchronous display system 300 is provided according to a third embodiment of the present invention. The multi-screen simultaneous display system 300 includes a memory 310 and a processor 330 coupled to the memory 310. The memory 310 may be, for example, a non-volatile memory, on which a computer program 311 is stored. The processor 330 may, for example, comprise an embedded processor. The processor 330 executes the computer program 311 to execute the multi-screen synchronous display method provided by the first embodiment.
[ fourth example ] A
As shown in FIG. 7, a fourth embodiment of the present invention provides a computer storage medium 400 having stored thereon computer-executable instructions 410. The computer-executable instructions 410 are used for executing the multi-screen synchronous display method according to the first embodiment. The computer storage medium 400 is, for example, a non-volatile memory, such as including: magnetic media (e.g., hard disks, floppy disks, and magnetic tape), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices specially constructed for storing and executing computer-executable instructions (e.g., Read Only Memories (ROMs), Random Access Memories (RAMs), flash memories, etc.). The computer storage medium 400 may be executable by one or more processors or processing devices to execute the computer-executable instructions 410.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
The integrated units/modules, which are implemented in the form of software functional units/modules, may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing one or more processors of a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A multi-screen synchronous display method is characterized by comprising the following steps:
creating a scene;
creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene;
creating an expanded output view for an expanded output display screen and associating the expanded output view with the scene;
generating a first display area of the extended output view according to the resolution of the extended output display screen;
generating a second display area corresponding to the first display area in the pre-monitoring graph; and
adding a primitive to be displayed to a second display area of the pre-monitored graph so that the primitive to be displayed is synchronously displayed in the first display area and the second display area.
2. A multi-screen synchronized display method according to claim 1, wherein prior to the creating of the expanded output view for the expanded output display screen, further comprising:
detecting whether the extended output display screen exists or not;
and when the extended output display screen is detected, acquiring the resolution of the extended output display screen.
3. A multi-screen synchronous display method according to claim 1, wherein the primitive to be displayed comprises a video or an image.
4. A multi-screen synchronous display device, comprising:
a scene creation module for creating a scene;
the pre-monitoring graph creating and associating module is used for creating a pre-monitoring graph for a pre-monitoring display screen and associating the pre-monitoring graph with the scene;
an extended output view creation and association module to create an extended output view for an extended output display screen and associate the extended output view with the scene;
a first display area generating module, configured to generate a first display area in the extended output view according to a resolution of the extended output display screen;
a second display area generating module, configured to generate a second display area corresponding to the first display area in the pre-monitored graph; and
and the primitive adding and displaying module is used for adding a primitive to be displayed to a second display area of the pre-monitored graph so as to enable the first display area and the second display area to synchronously display the primitive to be displayed.
5. A multi-screen simultaneous display device according to claim 4, further comprising:
the extended output display screen detection module is used for:
detecting whether the extended output display screen exists or not; and
and when the extended output display screen is detected, acquiring the resolution of the extended output display screen.
6. A multi-screen synchronous display device according to claim 4, wherein the graphical elements to be displayed comprise video or images.
7. A multi-screen synchronous display system, comprising: a memory and a processor coupled to the memory; the memory stores a computer program, and the processor executes the computer program to perform the multi-screen synchronous display method according to any one of claims 1 to 3.
8. A computer storage medium storing computer-executable instructions for performing the multi-screen simultaneous display method according to any one of claims 1 to 3.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238728A (en) * | 2021-06-16 | 2021-08-10 | 中国人民解放军91388部队 | Data display method, device, server, system and storage medium |
| CN113360070A (en) * | 2021-06-28 | 2021-09-07 | 广州市保伦电子有限公司 | Cooperative drawing implementation method based on qt and processing terminal |
| WO2023273000A1 (en) * | 2021-06-28 | 2023-01-05 | 广州市保伦电子有限公司 | Qt-based collaborative drawing implementation method, and processing terminal |
| CN113360070B (en) * | 2021-06-28 | 2023-02-28 | 广州市保伦电子有限公司 | Cooperative drawing implementation method based on qt and processing terminal |
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