CN112995538A - Central control equipment control splicer and multimedia signal source on-demand display method and equipment - Google Patents

Central control equipment control splicer and multimedia signal source on-demand display method and equipment Download PDF

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Publication number
CN112995538A
CN112995538A CN202110505009.8A CN202110505009A CN112995538A CN 112995538 A CN112995538 A CN 112995538A CN 202110505009 A CN202110505009 A CN 202110505009A CN 112995538 A CN112995538 A CN 112995538A
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splicer
central control
multimedia
file
windowing
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CN112995538B (en
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姚远
刘永建
李厚鹏
周劲羽
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Beijing Digibird Technology Co ltd
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Beijing Digibird Technology Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2628Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265Mixing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Computer Display Output (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The invention belongs to the technical field of splicers and signal source on-demand display, particularly relates to a central control equipment control splicer and a multimedia signal source on-demand display method and equipment, and aims to solve the problem that the existing central control equipment control splicer cannot realize the on-demand display of a multimedia signal source. The invention comprises the following steps: the input card of the splicer is connected with the display card output interface of the multimedia host, and the output card is connected to one or more groups of large display screens. Selecting a corresponding file by the central control equipment as required, and windowing in a Loading state; the multimedia host executes corresponding operations and sends the execution result to the central control equipment; the central control equipment adjusts windowing according to the execution result, cuts or combines the windowing and sends a windowing command to the splicer; the splicer performs windowing and displays the files on the corresponding one or more sets of large screens. The invention can realize the display of the multimedia signal source according to the requirement only by carrying out new setting on the splicer controlled by the original central control equipment.

Description

Central control equipment control splicer and multimedia signal source on-demand display method and equipment
Technical Field
The invention belongs to the technical field of splicers and signal source on-demand display, and particularly relates to a method and equipment for controlling splicers and multimedia signal source on-demand display by central control equipment.
Background
When a user uses the existing central control equipment to control the splicer and needs to display the multimedia signal sources point to point, the multimedia system outputs a plurality of signal sources to the splicer, then the splicer is controlled on the central control equipment, and the single signal source is directly windowed or manually cut and windowed, or the plurality of signal sources are combined and windowed. Especially, when the size or the proportion of a large screen is special, implementation personnel needs to manually modify the resolution of an input card of the splicer or the output resolution of a display card of the multimedia system, so that the implementation difficulty and the cost are increased, and the implementation risk is increased; in such a scene, the multimedia system can only be used for one group of large-screen display, cannot meet the display requirements of multiple groups of large screens, and wastes the splicer and multimedia system resources.
In the field, in a scene where a central control device controls a splicer and a multimedia system to display a multimedia signal source, a control method and a device for realizing the unbinding of the rendering relationship between the multimedia system and a large screen are also lacked, the content rendered by the multimedia system is displayed on a plurality of groups of large screens point to point as required, rendering resources of a multimedia host and input and output resources of the splicer are fully utilized, and the central control device controls one splicer and the multimedia system to render multi-path multimedia resources and display the multi-path multimedia resources on the plurality of groups of large screens point to point are realized.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, the problem that the existing central control equipment control splicer cannot realize the on-demand display of a multimedia signal source, the invention provides a central control equipment control splicer, which comprises a central control equipment, a multimedia host, a splicer, a network switch and one or more groups of large display screens;
the central control equipment, the multimedia host and the splicer are connected to the same local area network through the network switch;
the display card output interface of the multimedia host is connected to the input card of the splicer;
and the output card of the splicer is connected to the one or more groups of large display screens.
In some preferred embodiments, the central control device comprises a device management module, a UI designer and a central control device window management module;
the device management module is used for adding a multimedia host, configuring the IP, the name, the number of output channels of the display card and the output resolution of the corresponding channel of the multimedia host, establishing communication with the multimedia host and acquiring a file list which can be opened in a disc of the multimedia host from the communication module of the multimedia host; the system is also used for adding splicers, configuring the IP and the name of the splicers, and acquiring the number of input and output channels of the splicers and the address of a pre-monitoring picture of an input signal source; the interface device is also used for configuring the connection relationship between the display card output interface of the multimedia host and the splicer input card interface;
the UI designer is used for creating a page, adding the one or more groups of large display screens in the page, binding the splicer, adding a multimedia signal source component and binding file resources of the multimedia host;
and the central control equipment window management module is used for creating a default window to wait for file resource loading, generating a splicing device cutting or merging windowing command according to the connection relation between the display card output interface and the splicing device input card interface, and sending the splicing device cutting or merging windowing command to the splicing device.
In some preferred embodiments, the multimedia host further comprises a multimedia window management module;
and the multimedia window management module is used for calculating the windowing area of the corresponding file according to the windowing command of the central control equipment, and sending the display card output channel of the windowing area which is successfully windowed and the occupied area of each channel to the central control equipment window management module.
In some preferred embodiments, the splicer further comprises a splicer window management module;
and the splicer window management module is used for merging and windowing the cut or spliced multimedia signal sources according to the splicer cutting or merging windowing commands.
In another aspect of the present invention, an on-demand display method for a multimedia signal source is provided, where the method is based on the above-mentioned central control device controlling a splicer, and includes:
step S10, the central control device acquires a file list on the multimedia host, selects files as required, sends an Open instruction to the multimedia host, and performs Loading state windowing;
step S20, after receiving the Open instruction, the multimedia host executes a corresponding file opening operation, and sends an instruction execution result to the central control device; the execution result comprises whether the file is opened successfully, the actual rendering size of the file, an occupied display card output port list and the coordinates and the area of each port;
step S30, the central control device prompts to output or adjusts the windowing proportion of the Loading state according to the instruction execution result, cuts or combines the file input signals of the multimedia host, and sends a windowing command to the splicer;
and step S40, the splicer performs windowing according to the windowing command and displays the files on one or more corresponding large screens.
In some preferred embodiments, the actual rendered size of the file comprises:
if the file is a vector file, performing equal-proportion rendering by the multimedia host according to the maximum rendering width and height of the current hardware and the width and height configured by a user;
and if the file is a non-vector file, rendering the file by the multimedia host according to the actual width and height of the file.
In some preferred embodiments, for non-vector files, when the actual width and height thereof exceed the hardware maximum limit, the file is rendered in a scaling mode according to the actual width and height of the file and the maximum rendering width and height of the current hardware.
In a third aspect of the present invention, an on-demand display device for multimedia signal sources is provided, including:
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 multimedia signal source on-demand display method described above.
In a fourth aspect of the present invention, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions for being executed by the computer to implement the above-mentioned multimedia signal source on-demand display method.
The invention has the beneficial effects that:
(1) according to the on-demand display method of the multimedia signal source, a user does not need to worry about whether the content of the window formed on the splicer is stretched and deformed, the multimedia system and the central control can perform windowing according to the real proportion and size of the file, and the operation is convenient and fast.
(2) According to the multimedia signal source on-demand display method, the multimedia system host only needs to be configured according to the maximum output resolution required by the user, the rendering of a plurality of multimedia signal sources can be supported, and the point-to-point display is carried out on a plurality of groups of large screens through the splicer, so that the implementation is simple, and the configuration is flexible.
(3) The control equipment controls the splicer, realizes one central control equipment, simultaneously controls rendering and display of a plurality of groups of large-screen multimedia signal sources, and is convenient and fast to operate.
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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 in which:
FIG. 1 is a schematic diagram of a framework for controlling a splicer by the control device of the present invention;
fig. 2 is a flow chart illustrating a method for displaying a multimedia signal source on demand according to the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention discloses a central control equipment control splicer which comprises central control equipment, a multimedia host, a splicer, a network switch and one or more groups of large display screens, wherein the central control equipment control splicer comprises a central control unit, a plurality of multimedia hosts, a plurality of groups of large display screens and a plurality of groups of large display screens;
the central control equipment, the multimedia host and the splicer are connected to the same local area network through the network switch;
the display card output interface of the multimedia host is connected to the input card of the splicer;
and the output card of the splicer is connected to the one or more groups of large display screens.
In order to more clearly describe the control splicer of the control device of the present invention, the modules in the embodiment of the present invention are described in detail below with reference to fig. 1, and the steps in the embodiment of the present invention are described in detail with reference to fig. 2.
The central control device control splicer of the first embodiment of the invention comprises a central control device, a multimedia host, a splicer, a network switch and one or more groups of large display screens, wherein the modules are described in detail as follows:
the central control equipment, the multimedia host and the splicer are connected to the same local area network through a network switch, a display card output interface of the multimedia host is connected to an input card of the splicer, and an output card of the splicer is connected to one or more groups of large display screens.
The central control equipment comprises an equipment management module, a UI designer and a central control equipment window management module;
the device management module is used for adding a multimedia host, configuring the IP, the name, the number of output channels of the display card and the output resolution of the corresponding channel of the multimedia host, establishing communication with the multimedia host and acquiring a file list which can be opened in a disc of the multimedia host from the communication module of the multimedia host; the system is also used for adding splicers, configuring the IP and the name of the splicers, and acquiring the number of input and output channels of the splicers and the address of a pre-monitoring picture of an input signal source; the interface device is also used for configuring the connection relationship between the display card output interface of the multimedia host and the splicer input card interface;
the UI designer is used for creating a page, adding the one or more groups of large display screens in the page, binding the splicer, adding a multimedia signal source component and binding file resources of the multimedia host;
and the central control equipment window management module is used for creating a default window to wait for file resource loading, generating a splicing device cutting or merging windowing command according to the connection relation between the display card output interface and the splicing device input card interface, and sending the splicing device cutting or merging windowing command to the splicing device.
The multimedia host also comprises a multimedia window management module;
and the multimedia window management module is used for calculating the windowing area of the corresponding file according to the windowing command of the central control equipment, and sending the display card output channel of the windowing area which is successfully windowed and the occupied area of each channel to the central control equipment window management module.
The splicer also comprises a splicer window management module;
and the splicer window management module is used for merging and windowing the cut or spliced multimedia signal sources according to the splicer cutting or merging windowing commands.
The on-demand display method for the multimedia signal source according to the second embodiment of the present invention is based on the above-mentioned central control device controlling the splicer, and the method includes:
step S10, the central control device obtains a file list on the multimedia host, selects a file as needed, sends an Open instruction to the multimedia host, and performs Loading state windowing.
At this time, the central control device waits for the multimedia host to return a command execution result, although the central control device displays that the window is opened, the window is only a default window created for waiting for resource Loading, and is in a Loading state, and does not really send a windowing command to the splicer.
Step S20, after receiving the Open instruction, the multimedia host executes a corresponding file opening operation, and sends an instruction execution result to the central control device; the execution result comprises whether the file is opened successfully, the actual rendering size of the file, the occupied display card output port list and the coordinates and the area of each port.
The actual rendered size of the file includes:
if the file is a vector file, performing equal-proportion rendering by the multimedia host according to the maximum rendering width and height of the current hardware and the width and height configured by a user;
and if the file is a non-vector file, rendering the file by the multimedia host according to the actual width and height of the file.
And for the non-vector file, when the actual width and height of the non-vector file exceed the maximum limit of hardware, performing equal scaling rendering according to the actual width and height of the file and the maximum rendering width and height of the current hardware.
In one embodiment of the invention, the multimedia host processes a windowing command sent by the central control device. And when windowing for the first time, the current available resolution is the sum of the output resolutions of all the channels of the display card. For a non-vector file, determining an area occupied by windowing the file according to the actual rendering size of the file; for vector files, calculating the area occupied by windowing according to 1920-1080P (or 4K) and the proportion of the files; specifically, when the calculated occupied area is larger than the current available resolution and the available sub-resolution is not smaller than 960 × 540, calculating the area occupied by windowing the file according to the size of the current available resolution; otherwise, the open failure is returned. And finally, returning the display card output channels corresponding to the windowing region and the occupied region of each channel to the window management module of the central control device.
The following is a detailed description of a specific process of the method for calculating occupied area in the multimedia system, i.e. the window management module.
1. The total resolution of the output channel is equally divided according to the set 1080P or 4K, and the area information of each divided sub-area comprises: ID, coordinate, width and height, occupation, the number of rendering windows, residual area arrays in the upper direction, the lower direction, the left direction and the right direction and four adjacent (upper direction, lower direction, left direction and right direction) sub-area IDs. The number of the remaining areas of the sub-area is defaulted to 0, and only after the area is occupied, the area is divided into one or more remaining areas according to the occupation situation.
2. Maximum resolution of the sub-region: and (3) unoccupied: the remaining area of the sub-area plus the adjacent area (one of the four directions is selected); occupation: the largest of the remaining regions.
3. And (3) occupancy rules: one sub-region renders up to 3 window contents; during occupation, the upper left corner is preferentially taken as a vertex, and occupation is started from the residual area; and selecting the sub-region occupation with the maximum resolution according to the maximum resolution sequence of the sub-regions during occupation, and selecting the sub-region occupation with the front ID when the resolution is the same.
4. And calculating the rendering resolution according to the type of the file.
5. And if the rendering resolution of the file is less than or equal to the maximum value of the sub-area, updating the area information of the relevant area after occupation.
6. And if the rendering resolution of the file is greater than the maximum value of the sub-regions, calculating the number of the required sub-regions according to the width and the height of the rendering resolution, and calculating the number of the remaining regions of each sub-region after occupation.
And step S30, the central control equipment prompts to output or adjusts the windowing proportion of the Loading state according to the instruction execution result, cuts or combines file input signals of the multimedia host, and sends a windowing command to the splicer.
The central control equipment judges according to the information returned by the multimedia window management module, and prompts if the opening fails; and if the opening is successful, generating a splicing device cutting or merging windowing command according to the actual rendering size of the file, the occupied display card output port list, the coordinates and the area of each port and the connection relation between the display card channel and the splicing device input channel, and sending the command to the splicing device window management module.
And step S40, the splicer performs windowing according to the windowing command and displays the files on one or more corresponding large screens.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and related descriptions of the method described above may refer to the corresponding process in the foregoing system embodiment, and are not described herein again.
It should be noted that, the central control device control splicer and the method provided by the foregoing embodiment are only illustrated by the division of the foregoing functional modules, and in practical applications, the foregoing functions may be distributed by different functional modules according to needs, that is, the modules or steps in the embodiments of the present invention are further decomposed or combined, for example, the modules in the foregoing embodiments may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not to be construed as unduly limiting the present invention.
An on-demand display apparatus for a multimedia signal source 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 the multimedia signal source on-demand display method described above.
A computer-readable storage medium of a fourth embodiment of the present invention stores computer instructions for being executed by the computer to implement the above-mentioned method for displaying on demand a multimedia signal source.
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.
Those of skill in the art would appreciate that the various illustrative modules, method steps, and modules described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that programs corresponding to the software modules, method steps may be located in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The 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.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (9)

1. A central control equipment control splicer is characterized in that the central control equipment control splicer comprises central control equipment, a multimedia host, a splicer, a network switch and one or more groups of large display screens;
the central control equipment, the multimedia host and the splicer are connected to the same local area network through the network switch;
the display card output interface of the multimedia host is connected to the input card of the splicer;
and the output card of the splicer is connected to the one or more groups of large display screens.
2. The central control device control splicer of claim 1, wherein the central control device comprises a device management module, a UI designer, and a central control device window management module;
the device management module is used for adding a multimedia host, configuring the IP, the name, the number of output channels of the display card and the output resolution of the corresponding channel of the multimedia host, establishing communication with the multimedia host and acquiring a file list which can be opened in a disc of the multimedia host from the communication module of the multimedia host; the system is also used for adding splicers, configuring the IP and the name of the splicers, and acquiring the number of input and output channels of the splicers and the address of a pre-monitoring picture of an input signal source; the interface device is also used for configuring the connection relationship between the display card output interface of the multimedia host and the splicer input card interface;
the UI designer is used for creating a page, adding the one or more groups of large display screens in the page, binding the splicer, adding a multimedia signal source component and binding file resources of the multimedia host;
and the central control equipment window management module is used for creating a default window to wait for file resource loading, generating a splicing device cutting or merging windowing command according to the connection relation between the display card output interface and the splicing device input card interface, and sending the splicing device cutting or merging windowing command to the splicing device.
3. The central control device control splicer of claim 2, wherein the multimedia host further comprises a multimedia window management module;
and the multimedia window management module is used for calculating the windowing area of the corresponding file according to the windowing command of the central control equipment, and sending the display card output channel of the windowing area which is successfully windowed and the occupied area of each channel to the central control equipment window management module.
4. The central control device controlled splicer of claim 2, wherein the splicer further comprises a splicer window management module;
and the splicer window management module is used for merging and windowing the cut or spliced multimedia signal sources according to the splicer cutting or merging windowing commands.
5. A multimedia signal source on-demand display method, wherein a splicer is controlled based on the central control device of any one of claims 1 to 4, the method comprising:
step S10, the central control device acquires a file list on the multimedia host, selects files as required, sends an Open instruction to the multimedia host, and performs Loading state windowing;
step S20, after receiving the Open instruction, the multimedia host executes a corresponding file opening operation, and sends an instruction execution result to the central control device; the execution result comprises whether the file is opened successfully, the actual rendering size of the file, an occupied display card output port list and the coordinates and the area of each port;
step S30, the central control device prompts to output or adjusts the windowing proportion of the Loading state according to the instruction execution result, cuts or combines the file input signals of the multimedia host, and sends a windowing command to the splicer;
and step S40, the splicer performs windowing according to the windowing command and displays the files on one or more corresponding large screens.
6. The method for on-demand display of a multimedia signal source according to claim 5, wherein the actual rendered size of the file comprises:
if the file is a vector file, performing equal-proportion rendering by the multimedia host according to the maximum rendering width and height of the current hardware and the width and height configured by a user;
and if the file is a non-vector file, rendering the file by the multimedia host according to the actual width and height of the file.
7. The on-demand display method for multimedia signal sources of claim 6, wherein for non-vector files, when the actual width and height thereof exceed the hardware maximum limit, the scaled rendering is performed according to the actual width and height of the file and the maximum rendered width and height of the current hardware.
8. An on-demand display device for multimedia signal sources, 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 implementing the multimedia signal source on-demand display method of any of claims 5-7.
9. A computer-readable storage medium storing computer instructions for execution by the computer to implement the multimedia signal source on-demand display method of any one of claims 5 to 7.
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