CN111752510B - Television wall playback method and device - Google Patents
Television wall playback method and device Download PDFInfo
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- CN111752510B CN111752510B CN201910248878.XA CN201910248878A CN111752510B CN 111752510 B CN111752510 B CN 111752510B CN 201910248878 A CN201910248878 A CN 201910248878A CN 111752510 B CN111752510 B CN 111752510B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1431—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio 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
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio 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
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The application provides a television wall redisplay method and a device, wherein the method comprises the following steps: determining a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall; and copying the monitoring picture which is being displayed in the source window and rendering the monitoring picture to a playback window on the control screen for displaying. Because the monitoring picture in the source window on the copy television wall is image data, decoding is not needed, and the monitoring picture can be directly rendered on the control screen for display, the resource consumption is low, and the redisplay efficiency is high. And because the same equipment only needs to take one path of code stream from the monitoring point and decode and display the code stream on the television wall, two paths of code streams are not needed, and the occupied network bandwidth is less, so that pictures on the television wall and the control screen are not blocked, and the outflow utilization rate of the monitoring point can be improved.
Description
Technical Field
The application relates to the technical field of computers, in particular to a television wall redisplay method and device.
Background
One application scheme of the television wall is as follows: a television wall is built by externally connecting a plurality of display screens on the host, and then a display screen is externally connected on the host to be used as a control screen, so that an administrator can realize the display control of the television wall. Since the tv wall and the control screen are usually disposed at different positions (for example, the tv wall is disposed in a public area, and the control screen is disposed in the control room), when the administrator controls the display of the tv wall through the control screen, the administrator needs to first display the monitoring picture of the monitoring point being played in the tv wall, then control the displayed monitoring picture, and send the control command to the window corresponding to the monitoring point on the tv wall for execution.
At present, a host selects a monitoring point from monitoring points currently played by a television wall (that is, the host fetches a code stream from each monitoring point and sends the code stream to the television wall for playing), and fetches a code stream from the selected monitoring point again and sends the code stream to a control screen for playing, so that the control screen displays a monitoring picture of the monitoring point currently played by the television wall.
However, two paths of code streams are taken from the same monitoring point in the same host, which occupies a large network bandwidth, and when the network environment is poor, the monitoring pictures displayed on the television wall and the control screen are very unsmooth. In addition, for the monitoring point, because the outflow capacity is limited, the same host machine occupies double resources, and if a plurality of control screens simultaneously display the monitoring pictures of the monitoring point, the upper outflow limit is easily reached.
Disclosure of Invention
In view of this, the present application provides a video wall playback method and apparatus, so as to solve the problems that the monitoring screen on the video wall and the control screen is easy to be jammed and the monitoring point is easy to reach the upper limit of the outflow due to the existing playback mode.
According to a first aspect of the embodiments of the present application, there is provided a video wall playback method, including:
determining a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall;
and copying the monitoring picture which is being displayed in the source window and rendering the monitoring picture to a playback window on the control screen for displaying.
According to a second aspect of the embodiments of the present application, there is provided a video wall playback device, including:
the determining module is used for determining a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall;
and the copying and rendering module is used for copying the monitoring picture which is displayed in the source window and rendering the monitoring picture to a playback window on the control screen for display.
According to a third aspect of embodiments herein, there is provided an electronic device, the device comprising a readable storage medium and a processor;
wherein the readable storage medium is configured to store machine executable instructions;
the processor is configured to read the machine executable instructions on the readable storage medium and execute the instructions to implement the steps of the method according to the first aspect.
By applying the embodiment of the application, the source window occupied by the monitoring picture of the monitoring point to be redisplayed when displayed on the television wall is determined, then the monitoring picture which is displayed in the source window is copied and rendered into the redisplay window on the control screen for displaying, so that the synchronous redisplay of the monitoring picture on the television wall is realized, and the user can conveniently control the redisplay on the control screen.
Based on the above description, since the monitoring picture in the source window on the copy television wall is image data, decoding is not required, and the monitoring picture can be directly rendered on the control screen for display, the resource consumption is low, and the playback efficiency is high. And because the same equipment can only select one path of code stream from the monitoring point to decode and display the code stream on the television wall, two paths of code streams are not required to be selected, and the occupied network bandwidth is less, the pictures on the television wall and the control screen are not blocked, and the outflow utilization rate of the monitoring point can be improved.
Drawings
FIG. 1 is a flow chart illustrating an embodiment of a video wall playback method according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart illustrating an embodiment of another video wall playback method according to an exemplary embodiment of the present application;
FIG. 3 is a diagram illustrating a hardware configuration of an electronic device according to an exemplary embodiment of the present application;
fig. 4 is a block diagram of an embodiment of a video wall playback device according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if," as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination," depending on the context.
At present, the same host computer realizes the video wall playback by taking two paths of code streams from the same monitoring point, and has the following three defects: 1. the occupation of network bandwidth is large, and the pictures on a television wall and a control screen are easy to be blocked; 2. for the monitoring point, the same host occupies double resources, so that the monitoring point can easily reach the upper limit of outflow; 3. for the host, duplicate decoding resources are consumed, resulting in a decrease in the number of ways that can be previewed or played back on the host.
In order to solve the above problems, the present application provides a method for displaying back a television wall, in which a source window occupied by a monitoring picture of a monitoring point to be displayed back is determined when the monitoring picture is displayed on the television wall, and then the monitoring picture being displayed in the source window is copied and rendered into a back display window on a control screen for display, so that synchronous back display of the monitoring picture on the television wall is realized, and a user can conveniently control on the control screen.
Based on the above description, since the monitoring picture in the source window on the copy television wall is image data, decoding is not required, and the monitoring picture can be directly rendered on the control screen for display, the resource consumption is low, and the playback efficiency is high. And because the same equipment can only select one path of code stream from the monitoring point to decode and display the code stream on the television wall, two paths of code streams are not required to be selected, and the occupied network bandwidth is less, the pictures on the television wall and the control screen are not blocked, and the outflow utilization rate of the monitoring point can be improved.
The video wall playback method proposed in the present application is described in detail with specific examples below.
Fig. 1 is a flowchart of an embodiment of a video wall redisplay method according to an exemplary embodiment of the present application, where the video wall redisplay method may be applied to an electronic device, where multiple display cards are installed on the electronic device, each display card is externally connected to a display screen, and one of the display screens is used as a control screen, and the rest of the display screens are built into a large screen to serve as a video wall. As shown in fig. 1, the video wall playback method includes the following steps:
step 101: and determining a source window occupied by the monitoring picture of the monitoring point to be displayed back when the monitoring picture is displayed on the television wall.
In an embodiment, whether the playback function is started or not can be monitored, when the playback function is monitored to be started, the monitoring point to be played back is determined, and then the source window occupied by the monitoring picture of the monitoring point to be played back when displayed on the television wall is determined.
As an example, when the user operates and opens the display-back window on the control screen, it indicates that the display-back function is started, and then the user selects one path of monitoring points from the multiple paths of monitoring points currently displayed on the television wall as the monitoring points to be displayed back for control. Because the television wall can simultaneously display the monitoring pictures of multiple paths of monitoring points, each path of monitoring point corresponds to a source window for displaying the monitoring picture of the monitoring point, and therefore the source window corresponding to the monitoring point to be displayed back needs to be determined. The information related to the source window may include window size, device Context (DC) of the window, etc
Step 102: and copying the monitoring picture which is displayed in the source window and rendering the monitoring picture to a playback window on the control screen for displaying.
In an embodiment, the monitoring picture being displayed in the source window may be copied according to the display frame rate of the control screen, and the copied monitoring picture is stored in the display memory corresponding to the control screen, so that the monitoring picture is read from the display memory and rendered into the display-back window of the control screen for display according to the display frame rate of the control screen.
In this embodiment, since the monitoring picture copied by the device is directly image data, the copied monitoring picture can be directly stored in the memory of the control screen, and can be directly read from the memory and rendered into the playback window of the control screen for display without decoding. Because the code stream of the monitoring point is usually a high-definition code stream, the device needs to consume a decoding resource to decode the high-definition code stream and display the high-definition code stream in the source window, and because the size of the source window is limited, the monitoring image copied from the source window is very small, and the efficiency of rendering to the playback window is very high. The monitoring pictures in the source window are copied according to the display frame rate of the control screen, so that the monitoring pictures of the same monitoring point are synchronously displayed on the television wall and the control screen.
In the embodiment of the application, the source window occupied by the monitoring picture of the monitoring point to be redisplayed when displayed on the television wall is determined, then the monitoring picture which is displayed in the source window is copied and rendered into the redisplay window on the control screen for displaying, so that synchronous redisplay of the monitoring picture on the television wall is realized, and a user can conveniently control the redisplay window on the control screen.
Based on the above description, since the monitoring picture in the source window on the copy television wall is image data, decoding is not required, and the monitoring picture can be directly rendered on the control screen for display, the resource consumption is low, and the playback efficiency is high. And because the same equipment can only select one path of code stream from the monitoring point to decode and display the code stream on the television wall, two paths of code streams are not required to be selected, and the occupied network bandwidth is less, the pictures on the television wall and the control screen are not blocked, and the outflow utilization rate of the monitoring point can be improved.
Fig. 2 is a flowchart of another embodiment of a video wall playback method according to an exemplary embodiment of the present application, and this embodiment exemplarily illustrates how playback control is implemented in a process of copying a monitoring picture being displayed in a source window and rendering the monitoring picture to a playback window on a control screen for display based on the embodiment shown in fig. 1. As shown in fig. 2, the video wall playback method further includes the following steps:
step 201: and when the first preset icon is monitored to be positioned in the redisplay window, moving the first preset icon from the redisplay window to the source window, and drawing a second preset icon in the redisplay window.
In an embodiment, when it is monitored that the first preset icon is located in the playback window, a position mapping relationship between the playback window and the source window may be determined, then according to the position mapping relationship, the position of the first preset icon in the playback window is determined to correspond to the position in the source window, the first preset icon is moved to the position in the source window, and then, in the playback window, a second preset icon is drawn at the original position of the first preset icon, so as to ensure that the movement of the real control component is not perceived by the user. Wherein, the position change of the first preset icon is controlled by the control component.
For example, the shape and size of the first preset icon may or may not be the same as the shape and size of the second preset icon, which is not limited in this application. The control component may be a mouse, stylus, or the like. The position mapping relation between the echo window and the source window can be determined by the following modes:
assume that the window size of the playback window is: height h1, width w1, source window size: the height h2 and the width w2, coordinate systems of the playback window and the source window are both horizontal axis and vertical axis, the position coordinates of the control assembly in the playback window are (x 1, y 1), (x 1, y 1) correspond to the position coordinates (x 2, y 2) in the source window:
from x1/w1= x2/w2, x2= x1 × w2/w1 can be obtained
From y1/h1= y2/h2, y2= y1 × h2/h1 can be obtained
Step 202: and in the process of monitoring the triggering control command of the first preset icon in the source window, updating the position of the second preset icon in the redisplay window in real time according to the position change of the first preset icon in the source window.
Illustratively, the control command may include a command to enlarge or reduce the monitoring screen, a command to capture a picture of the monitoring screen, and the like.
In an embodiment, based on the position mapping relationship between the playback window and the source window determined in step 201, a first position of the first preset icon in the source window is detected once every time a frame of the monitoring picture being displayed in the source window is copied, and then according to the position mapping relationship, the first position of the first preset icon in the source window is determined to correspond to a second position in the playback window, and the second preset icon is moved to the second position.
It should be noted that, in the process of controlling the tv wall, the first preset icon actually controlled by the control component has been moved to the tv wall, and if the control is completed, the user wants to control other contents on the control screen, which is impossible by operating the control component, so that the first preset icon needs to be moved back to the control screen to close the tv wall control process. The implementation process can be as follows: and when the first preset icon is monitored to be located in the preset boundary area in the source window, moving the first preset icon from the source window back to the display-back window.
For example, the preset boundary region is located at the boundary of the source window, and the size of the preset boundary region can be set according to requirements. When moving back, the first preset icon may be moved back to the position in the bring-back window by determining that the position of the first preset icon in the source window corresponds to the position in the bring-back window. And when the first preset icon moves back to the position in the redisplay window, finishing the drawing of the second preset icon.
In this embodiment, after the first preset icon controlled by the control component is moved to the television wall, the second preset icon is drawn at the corresponding position of the playback window, and since the second preset icon in the playback window moves synchronously with the first preset icon in the source window, for the user, the monitoring point location control of the television wall can be realized only by controlling the second preset icon (actually, the control component triggers the control command and is executed by the television wall), and since the device does not need to transmit the control command between the playback window and the television wall, the playback control efficiency is high.
Fig. 3 is a hardware block diagram of an electronic device according to an exemplary embodiment of the present application, where the electronic device includes: a communication interface 301, a processor 302, a machine-readable storage medium 303, and a bus 304; wherein the communication interface 301, the processor 302, and the machine-readable storage medium 303 communicate with each other via a bus 304. The processor 302 may execute the above-described tv wall playback method by reading and executing machine executable instructions in the machine readable storage medium 303 corresponding to the control logic of the tv wall playback method, and the details of the method are described in the above embodiments and will not be described herein again.
The machine-readable storage medium 303 referred to herein may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: volatile memory, non-volatile memory, or similar storage media. In particular, the machine-readable storage medium 303 may be a RAM (random Access Memory), a flash Memory, a storage drive (e.g., a hard drive), any type of storage disk (e.g., an optical disk, a DVD, etc.), or similar storage medium, or a combination thereof.
Fig. 4 is a structural diagram of an embodiment of a video wall playback device according to an exemplary embodiment of the present application, where the video wall playback device may be applied to an electronic device, as shown in fig. 4, the video wall playback device includes:
a determining module 410, configured to determine a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall;
and the copy rendering module 420 is configured to copy the monitoring picture being displayed in the source window and render the monitoring picture to the playback window on the control screen for display.
In an optional implementation manner, the copy rendering module 420 is specifically configured to copy the monitoring picture being displayed in the source window according to the display frame rate of the control screen; storing the copied monitoring picture into a video memory corresponding to the control screen; and reading a monitoring picture from the display memory and rendering the monitoring picture to the playback window for displaying according to the display frame rate.
In an optional implementation manner, in copying the monitoring picture being displayed in the source window and rendering the monitoring picture to the playback window on the control screen for display, the apparatus further includes (not shown in fig. 4):
the redisplay control module is used for moving a first preset icon from the redisplay window to the source window and drawing a second preset icon in the redisplay window when the situation that the first preset icon is located in the redisplay window is monitored, and the position change of the first preset icon is controlled by the control component; and in the process of monitoring the triggering control command of the first preset icon in the source window, updating the position of the second preset icon in the redisplay window in real time according to the position change of the first preset icon in the source window.
In an optional implementation manner, the redisplay control module is specifically configured to determine a position mapping relationship between the redisplay window and the source window in a process of updating, in real time, a position of the second preset icon in the redisplay window according to a position change of the first preset icon in the source window; detecting the first position of the first preset icon in the source window once when copying one frame of the monitoring picture which is displayed in the source window; and determining that the first position of the first preset icon in the source window corresponds to the second position in the redisplay window according to the position mapping relation, and moving the second preset icon to the second position.
In an optional implementation manner, the playback control module is further configured to move the first preset icon from the source window back to the playback window when it is monitored that the first preset icon is located in a preset boundary area in the source window.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and 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 be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (8)
1. A video wall playback method, the method comprising:
determining a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall;
copying the monitoring picture which is being displayed in the source window and rendering the monitoring picture to a playback window on a control screen for displaying;
in copying the monitoring picture being displayed in the source window and rendering the monitoring picture to a playback window on a control screen for display, the method further comprises the following steps:
when a first preset icon is monitored to be located in a back display window, the first preset icon is moved from the back display window to the source window, a second preset icon is drawn in the back display window, and the position change of the first preset icon is controlled by a control assembly;
and in the process of monitoring the triggering control command of the first preset icon in the source window, updating the position of the second preset icon in the redisplay window in real time according to the position change of the first preset icon in the source window according to the position mapping relation between the redisplay window and the source window.
2. The method of claim 1, wherein copying the monitoring picture being displayed in the source window and rendering the monitoring picture to a playback window on a control screen for display comprises:
copying a monitoring picture which is being displayed in the source window according to the display frame rate of the control screen;
storing the copied monitoring picture into a video memory corresponding to the control screen;
and reading a monitoring picture from the display memory and rendering the monitoring picture to the playback window for displaying according to the display frame rate.
3. The method of claim 1, wherein updating the position of the second preset icon in the bring-back window in real time according to the position change of the first preset icon in the source window comprises:
determining a position mapping relation between the echo window and the source window;
detecting the first position of the first preset icon in the source window once when copying one frame of the monitoring picture which is displayed in the source window;
and determining that the first position of the first preset icon in the source window corresponds to the second position in the redisplay window according to the position mapping relation, and moving the second preset icon to the second position.
4. The method of claim 1, further comprising:
and when the first preset icon is monitored to be located in a preset boundary area in the source window, moving the first preset icon from the source window back to the playback window.
5. A video wall playback device, comprising:
the determining module is used for determining a source window occupied by a monitoring picture of a monitoring point to be displayed back when the monitoring picture is displayed on the television wall;
the copying and rendering module is used for copying the monitoring picture which is displayed in the source window and rendering the monitoring picture to a playback window on the control screen for display;
in copying the monitoring picture being displayed in the source window and rendering the monitoring picture to a playback window on a control screen for display, the device further comprises:
the redisplay control module is used for moving a first preset icon from the redisplay window to the source window and drawing a second preset icon in the redisplay window when the situation that the first preset icon is located in the redisplay window is monitored, and the position change of the first preset icon is controlled by the control component; and in the process of monitoring the triggering control command of the first preset icon in the source window, updating the position of the second preset icon in the redisplay window in real time according to the position change of the first preset icon in the source window according to the position mapping relation between the redisplay window and the source window.
6. The apparatus of claim 5,
the copy rendering module is specifically configured to copy the monitoring picture being displayed in the source window according to the display frame rate of the control screen; storing the copied monitoring picture into a video memory corresponding to the control screen; and reading a monitoring picture from the display memory and rendering the monitoring picture to the playback window for displaying according to the display frame rate.
7. The apparatus of claim 5,
the playback control module is specifically configured to determine a position mapping relationship between the playback window and the source window in a process of updating the position of the second preset icon in the playback window in real time according to the position change of the first preset icon in the source window; detecting a first position of the first preset icon in the source window once when copying one frame of the monitoring picture which is displayed in the source window; and determining that the first position of the first preset icon in the source window corresponds to the second position in the redisplay window according to the position mapping relation, and moving the second preset icon to the second position.
8. An electronic device, characterized in that the device comprises a readable storage medium and a processor;
wherein the readable storage medium is configured to store machine executable instructions;
the processor configured to read the machine executable instructions on the readable storage medium and execute the instructions to implement the steps of the method of any one of claims 1-4.
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| CN102411487B (en) * | 2011-10-28 | 2014-05-28 | 广东威创视讯科技股份有限公司 | Desktop control method and device |
| CN102664924B (en) * | 2012-03-29 | 2016-01-13 | 北京奇虎科技有限公司 | Information processing method in remote assistance process and device |
| CN108845776B (en) * | 2018-06-05 | 2021-11-12 | 威创集团股份有限公司 | Control method and device and storage medium |
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| CN105487834A (en) * | 2015-12-14 | 2016-04-13 | 广东威创视讯科技股份有限公司 | Splice wall return display method and system |
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