CN112653903A - LCD multi-screen different display method and system - Google Patents
LCD multi-screen different display method and system Download PDFInfo
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
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Abstract
The embodiment of the application provides an LCD multi-screen different display method and an LCD multi-screen different display system, and belongs to the technical field of display. This application is direct to carry active sign through judging the video frame of waiting to play and accurately finds corresponding LCD display module to quick and accurate realization many screen different shows, and need not to dispose the input interface of different grade type for every LCD display module, very big reduction the complexity of installation, reduce installation cost and manufacturing cost. In addition, the LCD display module is matched in a source identification mode, so that multi-screen different display is more flexible, and the application scene is wider.
Description
Technical Field
The application relates to the technical field of display, in particular to an LCD multi-screen different display method and system.
Background
At present, the application of the splicing display is more and more, and the splicing not only enables the size of the display screen to be larger, but also enables the display screen to be effectively applied to outdoor business display.
However, many of the current tiled displays are synchronous displays, that is, the tiled display screen is played as only one display screen, and the screen is simply enlarged. If multi-screen different display is to be realized, the splicing display cannot be realized. It is common to realize multi-screen different display by accessing different types of interfaces for different display screens. This results in each display being constrained by the input interface and also results in higher installation costs, as well as higher costs due to the need to replace the display once the display input is to be changed.
Therefore, how to solve the above problems is a problem that needs to be solved at present.
Disclosure of Invention
The present application provides a method and a system for multi-screen different display of LCD, aiming to improve the above problems.
In a first aspect, the present application provides a method for displaying multiple LCD screens, including: receiving a plurality of frames of video frames to be played, wherein each frame of video frames to be played carries an active identifier; decrypting the source identifier to obtain a decrypted key; sending the key to a server so as to identify the identification information of an LCD display module corresponding to the key through the server, wherein the LCD display module is at least one display module on an LCD display screen; receiving the identification information returned by the server; determining the playing state of the LCD display module corresponding to the identification information, wherein the determining the playing state of the LCD display module corresponding to the identification information includes: sending an access request to a play mode monitoring unit corresponding to each piece of identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information; if the playing state of the LCD display module is in a pause playing mode, respectively storing each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module; and if the playing state of the LCD display module is in a playing mode, adding each frame of the video frame to be played into the corresponding playing sequence of the LCD display module respectively so as to realize that the plurality of LCD display modules respectively display different video frames to be played.
Optionally, the method further comprises: determining whether the video frame to be played is asynchronously displayed; if the video frame to be played is received, one frame of the multiple frames of the video frames to be played is sent to a first LCD display module, and the rest frames of the multiple frames of the video frames to be played are sent to a second LCD display module and a third LCD display module, wherein the time interval between every two first LCD display module, the second LCD display module and the third LCD display module for receiving the video frames to be played is a preset time threshold value.
Optionally, the decrypting the source identifier to obtain a decrypted key includes: decrypting the source identifier based on an MD5 decryption algorithm to obtain an initial key; and adding an action execution identifier to each initial key to obtain a decrypted key, wherein the action execution identifier is used for indicating the server that the key is a legal key and executing the action of the key matching display module.
Optionally, the storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module respectively includes: determining whether the playing priority of the video frame to be played is greater than a preset threshold value; if so, storing the video frame to be played to a first storage position in a storage unit matched with the LCD display module corresponding to the identification information, wherein when the LCD display module plays the video frame to be played in the storage unit, the video frame to be played is obtained from the first storage position.
Optionally, the determining whether the playing priority of the video frame to be played is greater than a preset threshold includes: analyzing the identification information to obtain the playing priority added by the server for the video frame to be played; and judging whether the playing priority is greater than a preset threshold corresponding to the LCD display module matched with the identification information, wherein the preset threshold is a pre-stored playing priority.
Optionally, the method further comprises: acquiring a pause playing mode instruction, wherein the pause playing mode instruction comprises the identification information and triggering time of an LCD display module of a to-be-paused playing mode; determining whether the trigger time is synchronous with the display time of the current LCD display module; if not, adjusting the playing picture of the LCD display module based on the trigger time so as to enable the playing picture of the LCD display module to be a target playing picture at the moment corresponding to the trigger time; and executing the pause playing mode instruction on the target playing picture.
Optionally, the obtaining of the command of the pause playing mode includes: monitoring the action of a user executing double click on the LCD display screen, wherein the double click comprises single-finger double click, double-finger double click and/or multi-finger double click; determining an execution area of the double-click action; and generating a pause playing mode instruction according to the execution area and the double-click action.
Optionally, the obtaining of the command of the pause playing mode includes: monitoring whether the display area of each LCD display module receives infrared light of a specific wave band; if yes, generating a pause playing mode instruction at the LCD display module receiving the infrared light of the specific wave band so as to pause a certain LCD display module when the plurality of LCD display modules perform different display.
Optionally, the method further comprises: receiving a picture switching instruction, wherein the picture switching instruction comprises an LCD display module of a first picture to be switched, an LCD display module of a second picture to be switched, a first picture frame to be switched and a second picture frame to be switched; the first to-be-switched picture frame displayed on the LCD display module of the first to-be-switched picture is switched with the second to-be-switched picture frame displayed on the LCD display module of the second to-be-switched picture, so that the LCD display module of the first to-be-switched picture displays the second to-be-switched picture frame, and the LCD display module of the second to-be-switched picture displays the first to-be-switched picture frame; wherein, exchanging the first to-be-switched picture frame displayed on the LCD display module of the first to-be-switched picture with the second to-be-switched picture frame displayed on the LCD display module of the second to-be-switched picture comprises: backing up the first picture frame to be switched and the second picture frame to be switched; adding the first to-be-switched picture frame after backup into the next playing sequence of the LCD display module of the second to-be-switched picture, and adding the second to-be-switched picture frame after backup into the next playing sequence of the LCD display module of the first to-be-switched picture; and after the playing sequence is added, controlling the LCD display module of the first picture to be switched to display the second picture frame to be switched, and controlling the LCD display module of the second picture to be switched to display the first picture frame to be switched.
In a second aspect, the present application provides an LCD multi-screen different display system, which includes: the first receiving module is used for receiving a plurality of frames of video frames to be played, wherein each frame of video frames to be played carries an active identifier; the first processing module is used for decrypting the source identifier to obtain a decrypted key; the sending module is used for sending the secret key to a server so as to identify the identification information of the LCD display module corresponding to the secret key through the server, wherein the LCD display module is at least one display module on an LCD display screen; the second receiving module is used for receiving the identification information returned by the server; a second processing module, configured to determine a playing state of the LCD display module corresponding to the identification information, where the determining the playing state of the LCD display module corresponding to the identification information includes: sending an access request to a play mode monitoring unit corresponding to each identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information; the first playing module is used for respectively storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module if the playing state of the LCD display module is in a pause playing mode; and the second playing module is used for adding each frame of the video frames to be played into the corresponding playing sequence of the LCD display module respectively if the playing state of the LCD display module is in a playing mode so as to realize that the plurality of LCD display modules respectively display different video frames to be played.
According to the method and the system for multi-screen different display of the LCD, a plurality of frames of video frames to be played are received, and each frame of the video frames to be played carries an active identifier; decrypting the source identifier to obtain a decrypted key; sending the key to a server to identify the identification information of the LCD display module corresponding to the key through the server, wherein the LCD display module is at least one display module on an LCD display screen; receiving the identification information returned by the server; determining the playing state of the LCD display module corresponding to the identification information; if the playing state of the LCD display module is in a pause playing mode, respectively storing each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module; and if the playing state of the LCD display module is in a playing mode, adding each frame of the video frame to be played into the corresponding playing sequence of the LCD display module respectively so as to realize that the plurality of LCD display modules respectively display different video frames to be played. This application can be directly through judging that it carries active sign to treat the broadcast video frame and accurately find corresponding LCD display module to quick and accurate realization many screen different shows, and need not to dispose the input interface of different grade type for every LCD display module, very big reduction the complexity of installation, reduce installation cost and manufacturing cost.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device according to a first embodiment of the present application;
FIG. 2 is a flowchart illustrating a multi-screen display method for an LCD according to a second embodiment of the present application;
fig. 3 is a functional block diagram of an LCD multi-screen display system according to a third embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present application. 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 application.
First embodiment
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and in the present application, an electronic device 100 for implementing an LCD multi-screen display method and system according to an embodiment of the present application can be described through the schematic diagram shown in fig. 1.
Wherein the electronic device 100 is configured to execute the method shown in the second embodiment or to implement the functions of the system shown in the third embodiment. Specifically, please refer to the corresponding embodiments, which are not described herein again.
As shown in FIG. 1, an electronic device 100 includes one or more processors 102, one or more memory devices 104, an input device 106, an output device 108, which are interconnected via a bus system and/or other type of connection mechanism (not shown). It should be noted that the components and structure of the electronic device 100 shown in fig. 1 are only exemplary and not limiting, and the electronic device may have some of the components shown in fig. 1 and may have other components and structures not shown in fig. 1 as needed.
The processor 102 may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 100 to perform desired functions.
The storage 104 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, Random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, Read Only Memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium and executed by processor 102.
The input device 106 may be a device used by a user to input instructions and may include one or more of a keyboard, a mouse, a microphone, a touch screen, and the like.
The output device 108 may be a display screen for displaying the video frames to be played.
Second embodiment:
referring to the flowchart of the LCD multi-screen displaying method shown in fig. 2, the method specifically includes the following steps:
step S201, receiving multiple frames of video frames to be played.
And each frame of the video frame to be played carries an active identifier.
Alternatively, the plurality of video frames to be played may be transmitted in real time by the play server.
The multiple frames of video to be played may be different frames of the same continuous video or different frames of different videos.
It should be noted that, in the embodiment of the present application, different frames of different video sources are taken as an example.
Step S202, the source identification is decrypted to obtain a decrypted key.
It should be understood that when the playing server sends the video frame to be played, the active identifier is encrypted in the video frame to be played.
As an embodiment, step S202 includes: decrypting the source identifier based on an MD (Message-Digest Algorithm) 5 decryption Algorithm to obtain an initial key; and adding an action execution identifier to each initial key to obtain a decrypted key, wherein the action execution identifier is used for indicating the server that the key is a legal key and executing the action of the key matching display module.
In the implementation process, the source identifier is quickly decrypted by adopting an MD5 algorithm to obtain an initial key, and then an action execution identifier is added to each initial key to obtain a decrypted key, so that after the server verifies that the key is legal, the server can identify the identifier information of the LCD display module corresponding to the key according to the key, the legal access efficiency is improved, and the server overhead is saved.
It should be understood that the server stores the identification information of each LCD display module, and the correct key corresponding to each source identification.
Step S203, sending the key to a server, so as to identify, by the server, the identification information of the LCD display module corresponding to the key.
The LCD display module is at least one display module on the LCD display screen.
For example, suppose the LCD display screen includes 4 LCD display modules, and the 4 LCD display modules may be spliced together or separated. Here, the number of the carbon atoms is not particularly limited.
Step S204, receiving the identification information returned by the server.
Step S205, determining the playing status of the LCD display module corresponding to the identification information.
Wherein the playing state comprises a pause playing mode and a playing mode.
Of course, in actual use, the play state may also include other modes, such as playback, forward, etc. Here, the number of the carbon atoms is not particularly limited.
As an embodiment, step S205 includes: and sending an access request to a play mode monitoring unit corresponding to each identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information.
In the implementation process, an access request is sent to the play mode monitoring unit corresponding to each identification information in real time, so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information. Therefore, the current playing state of each LCD display module can be accurately known, corresponding display can be conveniently executed according to the playing state corresponding to each LCD display module, display smoothness during multi-screen different display is improved, and display errors are avoided.
Step S206, if the playing status of the LCD display module is in the pause playing mode, storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module.
Each LCD display module is provided with a storage unit corresponding to the LCD display module, and the storage unit is used for storing video frames to be played.
That is, when any LCD display module is in the pause playing mode, the video frames to be played are stored in the storage unit. When it is in play mode, the video frames are read directly from the storage unit.
In the implementation process, the video frames to be played can be kept and are not easy to clear by temporarily storing the video frames to be played in the storage unit, so that the user experience is improved. Therefore, when the user wants to play, the video frames which are not played can still be played.
Optionally, the storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module respectively includes: determining whether the playing priority of the video frame to be played is greater than a preset threshold value; if so, storing the video frame to be played to a first storage position in a storage unit matched with the LCD display module corresponding to the identification information, wherein when the LCD display module plays the video frame to be played in the storage unit, the video frame to be played is obtained from the first storage position.
The preset threshold may be dynamically set according to actual requirements, and is not specifically limited herein. For example, the priority is set to 1-10, the preset threshold may be set to a value such as 8 or 9, and in this case, it should be understood that the larger the value is, the higher the priority is, that is, when the priority is 8, the priority of the video frame to be played is greater than that of the video frame to be played with the priority of 7.
The setting of the playing priority of each frame may be a user-triggered setting, or a server setting, and is not limited specifically herein.
For example, when the user selects fast forward, the priority of the video frame to be played next is adjusted by default to be greater than a preset threshold. And the priority of the original next frame is smaller than a preset threshold value so as to facilitate frame skipping playing.
In the implementation process, whether the playing priority of the video frame to be played is greater than a preset threshold value is judged; if yes, the video frame to be played is stored to the first storage position in the storage unit matched with the LCD display module corresponding to the identification information, so that the LCD display module can realize more display modes when multi-screen different display is performed, and the experience of a user on the multi-screen different display of the LCD display screen is better.
Optionally, the determining whether the playing priority of the video frame to be played is greater than a preset threshold includes: analyzing the identification information to obtain the playing priority added by the server for the video frame to be played; and judging whether the playing priority is greater than a preset threshold corresponding to the LCD display module matched with the identification information, wherein the preset threshold is a pre-stored playing priority.
In the implementation process, the playing priority added by the server to the video frames to be played is obtained by analyzing the identification information, and then the playing priority can be dynamically added to each video frame to be played by setting the priority by the server, so as to dynamically adjust the sequence of the displayed frames of each LCD (Liquid Crystal Display) Display module.
Step S207, if the playing status of the LCD display module is in the playing mode, adding each frame of the video frames to be played to the corresponding playing sequence of the LCD display module, so as to enable the plurality of LCD display modules to display different video frames to be played respectively.
Wherein the playback sequence is different from the storage unit, the playback sequence being located in the buffer. When the LCD display module displays video frames, the video frames to be played in the storage unit are generally added to the play sequence first, and then the video frames to be played are displayed one by one from the play sequence.
In a possible embodiment, the method further comprises: acquiring a pause playing mode instruction, wherein the pause playing mode instruction comprises the identification information and triggering time of an LCD display module of a to-be-paused playing mode; determining whether the trigger time is synchronous with the display time of the current LCD display module; if not, adjusting the playing picture of the LCD display module based on the trigger time so as to enable the playing picture of the LCD display module to be a target playing picture at the moment corresponding to the trigger time; and executing the pause playing mode instruction on the target playing picture.
In the implementation process, a pause playing mode instruction is obtained, wherein the pause playing mode instruction comprises the identification information and the trigger time of the LCD display module of the to-be-paused playing mode; determining whether the trigger time is synchronous with the display time of the current LCD display module; if not, adjusting the playing picture of the LCD display module based on the trigger time so as to enable the playing picture of the LCD display module to be a target playing picture at the moment corresponding to the trigger time; and executing the pause playing mode instruction on the target playing picture. Therefore, when a user watches the multi-screen different display of the LCD, the user can control a certain LCD display module to pause at any time, all the LCD display modules are not required to pause, and the user experience is improved, so that the multi-screen different display mode is more practical.
Optionally, the obtaining of the command of the pause playing mode includes: monitoring the action of a user executing double click on the LCD display screen, wherein the double click comprises single-finger double click, double-finger double click and/or multi-finger double click; determining an execution area of the double-click action; and generating a pause playing mode instruction according to the execution area and the double-click action.
For example, when the LCD display module is a touch display screen, a user may double-click a display area of the LCD display module that needs to be paused, for example, the user may generate a pause instruction by performing a single-finger double-click, a double-finger double-click, and/or a multi-finger double-click, so as to pause the playing of the LCD display module without pausing the playing of other LCD display modules.
Optionally, the obtaining of the command of the pause playing mode includes: monitoring whether the display area of each LCD display module receives infrared light of a specific wave band; if yes, generating a pause playing mode instruction at the LCD display module receiving the infrared light of the specific wave band so as to pause a certain LCD display module when the plurality of LCD display modules perform different display.
The specific band selection of the specific band can be set according to actual requirements, for example, the band of infrared light emitted by a common remote control panel is adopted, and other bands can also be adopted. Here, the number of the carbon atoms is not particularly limited.
In the implementation process, the LCD display module is controlled to pause playing in different modes, so that when the LCD display screen is subjected to multi-screen different display, a user can pause without using a fixed mode, more operation modes are provided for the user, the user can use the LCD display screen more conveniently, and the user experience is effectively improved.
In a possible embodiment, the method further comprises: receiving a picture switching instruction, wherein the picture switching instruction comprises an LCD display module of a first picture to be switched, an LCD display module of a second picture to be switched, a first picture frame to be switched and a second picture frame to be switched; the first to-be-switched picture frame displayed on the LCD display module of the first to-be-switched picture is switched with the second to-be-switched picture frame displayed on the LCD display module of the second to-be-switched picture, so that the LCD display module of the first to-be-switched picture displays the second to-be-switched picture frame, and the LCD display module of the second to-be-switched picture displays the first to-be-switched picture frame; wherein, exchanging the first frame to be switched displayed on the LCD display module of the first frame to be switched with the second frame to be switched displayed on the LCD display module of the second frame to be switched includes: backing up the first picture frame to be switched and the second picture frame to be switched; adding the first to-be-switched picture frame after backup into a next playing sequence of the LCD display module of the second to-be-switched picture, and adding the second to-be-switched picture frame after backup into a next playing sequence of the LCD display module of the first to-be-switched picture; and after the playing sequence is added, controlling the LCD display module of the first picture to be switched to display the second picture frame to be switched, and controlling the LCD display module of the second picture to be switched to display the first picture frame to be switched.
Wherein, the picture switching instruction is triggered by a user.
For example, suppose that when a user views a picture on one of the LCD display modules, the user wants to switch the picture on the LCD display module to another LCD display module for display. At this time, the user can input a frame switching instruction by an input mode. For example, the screen switching instruction is presented in this form: and switching the current picture displayed on the LCD display module No. 1 to the LCD display module No. 2 for displaying, and switching the current display picture on the LCD display module No. 2 to the LCD display module No. 1 for displaying. So as to realize the display screen switching between the No. 1 LCD display module and the No. 2 LCD display module.
Of course, the user may click the display area of the LCD display module to switch the screen of the LCD display module. Or dragging the picture displayed on one LCD display module to another LCD display module in a dragging mode, and dragging the display picture of another LCD display module to one LCD display module at the same time. To realize screen switching in this way.
That is, the screen switching instruction may be generated by a user clicking a display area of the LCD display module, or triggered by a user by dragging.
Of course, in actual use, the screen switching instruction may be generated in other manners. E.g. by a server. Here, the number of the carbon atoms is not particularly limited.
In the implementation process, by receiving a picture switching instruction, the picture switching instruction comprises an LCD display module of a first picture to be switched, an LCD display module of a second picture to be switched, a first picture frame to be switched and a second picture frame to be switched; the method comprises the steps of switching a first to-be-switched picture frame displayed on an LCD display module of a first to-be-switched picture with a second to-be-switched picture frame displayed on an LCD display module of a second to-be-switched picture so that the LCD display module of the first to-be-switched picture displays the second to-be-switched picture frame, and the LCD display module of the second to-be-switched picture displays the first to-be-switched picture frame, so that the method can realize multi-screen picture switching under the condition of multi-screen display, improve the display mode, improve user experience and increase application scenes of the multi-screen display.
In the LCD multi-screen different display method provided by this embodiment, a plurality of frames of video to be played are received, where each frame of video to be played carries an active identifier; decrypting the source identification to obtain a decrypted key; sending the key to a server so as to identify the identification information of the LCD display module corresponding to the key through the server, wherein the LCD display module is at least one display module on an LCD display screen; receiving the identification information returned by the server; determining the playing state of the LCD display module corresponding to the identification information; if the playing state of the LCD display module is in a pause playing mode, respectively storing each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module; and if the playing state of the LCD display module is in a playing mode, adding each frame of the video frame to be played into the corresponding playing sequence of the LCD display module respectively so as to realize that the plurality of LCD display modules respectively display different video frames to be played. This application can be directly through judging that it carries active sign to treat the broadcast video frame and accurately finds corresponding LCD display module to quick and accurate realization many screen different shows, and need not to dispose different types's input interface for every LCD display module, very big reduction the complexity of installation, reduce installation cost and manufacturing cost.
The third embodiment:
referring to fig. 3, the LCD multi-panel display system 400 includes:
the first receiving module 410 is configured to receive multiple frames of video frames to be played, where each frame of the video frames to be played carries an active identifier.
The first processing module 420 is configured to decrypt the source identifier to obtain a decrypted key.
Optionally, the first processing module 420 is further configured to decrypt the source identifier based on an MD5 decryption algorithm to obtain an initial key; and adding an action execution identifier to each initial key to obtain a decrypted key, wherein the action execution identifier is used for indicating the server that the key is a legal key and executing the action of the key matching display module.
And the sending module 430 is configured to send the key to a server, so that the server identifies identification information of an LCD display module corresponding to the key, where the LCD display module is at least one display module on an LCD display screen.
A second receiving module 440, configured to receive the identification information returned by the server.
The second processing module 450 is configured to determine a playing state of the LCD display module corresponding to the identification information, where the determining the playing state of the LCD display module corresponding to the identification information includes: and sending an access request to a play mode monitoring unit corresponding to each identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information.
The first playing module 460 is configured to store each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module if the playing status of the LCD display module is the pause playing mode.
Optionally, the first playing module 460 is configured to determine whether the playing priority of the video frame to be played is greater than a preset threshold value if the playing status of the LCD display module is in the pause playing mode; if so, storing the video frame to be played to a first storage position in a storage unit matched with the LCD display module corresponding to the identification information, wherein when the LCD display module plays the video frame to be played in the storage unit, the video frame to be played is firstly obtained from the first storage position.
The second playing module 470 is configured to add each frame of the video frame to be played to the corresponding playing sequence of the LCD display module, respectively, if the playing status of the LCD display module is in the playing mode, so that the plurality of LCD display modules respectively display different video frames to be played.
In a possible embodiment, the LCD multi-screen display system 400 further includes: an asynchronous processing module to: determining whether the video frame to be played is asynchronously displayed; if yes, sending a plurality of frames of one frame of the video frames to be played to a first LCD display module, and sending a plurality of frames of the rest frames of the video frames to be played to a second LCD display module and a third LCD display module, wherein the time interval between every two first LCD display module, between every two second LCD display module and between every two third LCD display module, for receiving the video frames to be played is a preset time threshold value.
Further, this embodiment further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processing device, the steps of any one of the LCD multi-screen different display methods provided in the second embodiment are executed.
The computer program product of the LCD multi-screen different display method and system provided in the embodiments of the present application includes a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementations may refer to the method embodiments and are not described herein again.
In summary, the present application provides a method and a system for multi-screen different display of an LCD, where a plurality of frames of video to be played are received, and each frame of the video to be played carries an active identifier; decrypting the source identification to obtain a decrypted key; sending the key to a server so as to identify the identification information of an LCD display module corresponding to the key through the server, wherein the LCD display module is at least one display module on an LCD display screen; receiving the identification information returned by the server; determining the playing state of the LCD display module corresponding to the identification information; if the playing state of the LCD display module is in a pause playing mode, respectively storing each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module; and if the playing state of the LCD display module is in a playing mode, adding each frame of the video frame to be played into the corresponding playing sequence of the LCD display module respectively so as to realize that the plurality of LCD display modules respectively display different video frames to be played. This application can directly carry the active sign through judging to wait to broadcast the video frame and accurately find corresponding LCD display module to quick and accurate realization many screen different shows, and need not to dispose the input interface of different grade type for every LCD display module, very big reduction the complexity of installation, reduce installation cost and manufacturing cost.
It should be noted that the above functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application, or portions thereof that contribute to the prior art, may be substantially embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the 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.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (10)
1. A multi-screen different display method for an LCD (liquid crystal display), which is characterized by comprising the following steps:
receiving a plurality of frames of video frames to be played, wherein each frame of video frames to be played carries an active identifier;
decrypting the source identification to obtain a decrypted key;
sending the key to a server so as to identify the identification information of an LCD display module corresponding to the key through the server, wherein the LCD display module is at least one display module on an LCD display screen;
receiving the identification information returned by the server;
determining the playing state of the LCD display module corresponding to the identification information, wherein the determining the playing state of the LCD display module corresponding to the identification information includes: sending an access request to a play mode monitoring unit corresponding to each identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information;
if the playing state of the LCD display module is in a pause playing mode, respectively storing each frame of the video frame to be played to a corresponding storage unit matched with the LCD display module;
and if the playing state of the LCD display module is in a playing mode, adding each frame of the video frame to be played into the corresponding playing sequence of the LCD display module respectively so as to realize that the plurality of LCD display modules respectively display different video frames to be played.
2. The method of claim 1, further comprising:
determining whether the video frame to be played is asynchronously displayed;
if yes, sending a plurality of frames of one frame of the video frames to be played to a first LCD display module, and sending a plurality of frames of the rest frames of the video frames to be played to a second LCD display module and a third LCD display module, wherein the time interval between every two first LCD display module, the second LCD display module and the third LCD display module for receiving the video frames to be played is a preset time threshold value.
3. The method of claim 1, wherein decrypting the source identifier to obtain a decrypted key comprises:
decrypting the source identifier based on an MD5 decryption algorithm to obtain an initial key;
and adding an action execution identifier to each initial key to obtain a decrypted key, wherein the action execution identifier is used for indicating the server that the key is a legal key and executing the action of the key matching display module.
4. The method according to claim 1, wherein the storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module respectively comprises:
determining whether the playing priority of the video frame to be played is greater than a preset threshold value;
if so, storing the video frame to be played to a first storage position in a storage unit matched with the LCD display module corresponding to the identification information, wherein when the LCD display module plays the video frame to be played in the storage unit, the video frame to be played is firstly obtained from the first storage position.
5. The method of claim 4, wherein the determining whether the playing priority of the video frame to be played is greater than a preset threshold comprises:
analyzing the identification information to obtain the playing priority added by the server for the video frame to be played;
and judging whether the playing priority is greater than a preset threshold corresponding to the LCD display module matched with the identification information, wherein the preset threshold is a pre-stored playing priority.
6. The method of claim 1, further comprising:
acquiring a pause playing mode instruction, wherein the pause playing mode instruction comprises the identification information and triggering time of an LCD display module of a to-be-paused playing mode;
determining whether the trigger time is synchronous with the display time of the current LCD display module;
if not, adjusting the playing picture of the LCD display module based on the trigger time so as to enable the playing picture of the LCD display module to be a target playing picture at the moment corresponding to the trigger time;
and executing the pause playing mode instruction on the target playing picture.
7. The method of claim 6, wherein obtaining the pause playback mode command comprises:
monitoring the action of a user executing double click on the LCD display screen, wherein the double click comprises single-finger double click, double-finger double click and/or multi-finger double click;
determining an execution area of the double-click action;
and generating a pause playing mode instruction according to the execution area and the double-click action.
8. The method of claim 6, wherein obtaining the pause playback mode command comprises:
monitoring whether the display area of each LCD display module receives infrared light of a specific wave band;
if yes, generating a pause playing mode instruction at the LCD display module receiving the infrared light of the specific wave band so as to pause a certain LCD display module when the plurality of LCD display modules perform different display.
9. The method of claim 1, further comprising:
receiving a picture switching instruction, wherein the picture switching instruction comprises an LCD display module of a first picture to be switched, an LCD display module of a second picture to be switched, a first picture frame to be switched and a second picture frame to be switched;
the first to-be-switched picture frame displayed on the LCD display module of the first to-be-switched picture is switched with the second to-be-switched picture frame displayed on the LCD display module of the second to-be-switched picture, so that the LCD display module of the first to-be-switched picture displays the second to-be-switched picture frame, and the LCD display module of the second to-be-switched picture displays the first to-be-switched picture frame; wherein, exchanging the first frame to be switched displayed on the LCD display module of the first frame to be switched with the second frame to be switched displayed on the LCD display module of the second frame to be switched includes:
backing up the first picture frame to be switched and the second picture frame to be switched;
adding the first to-be-switched picture frame after backup into a next playing sequence of the LCD display module of the second to-be-switched picture, and adding the second to-be-switched picture frame after backup into a next playing sequence of the LCD display module of the first to-be-switched picture;
and after the playing sequence is added, controlling the LCD display module of the first picture to be switched to display the second picture frame to be switched, and controlling the LCD display module of the second picture to be switched to display the first picture frame to be switched.
10. The LCD multi-screen different display system is characterized by comprising:
the first receiving module is used for receiving a plurality of frames of video frames to be played, wherein each frame of video frames to be played carries an active identifier;
the first processing module is used for decrypting the source identifier to obtain a decrypted key;
the sending module is used for sending the secret key to a server so as to identify the identification information of the LCD display module corresponding to the secret key through the server, wherein the LCD display module is at least one display module on an LCD display screen;
the second receiving module is used for receiving the identification information returned by the server;
a second processing module, configured to determine a playing state of the LCD display module corresponding to the identification information, where the determining the playing state of the LCD display module corresponding to the identification information includes: sending an access request to a play mode monitoring unit corresponding to each identification information so that the play mode monitoring unit can return the play state of the LCD display module corresponding to the identification information;
the first playing module is used for respectively storing each frame of the video frame to be played to the corresponding storage unit matched with the LCD display module if the playing state of the LCD display module is in a pause playing mode;
and the second playing module is used for adding each frame of the video frames to be played into the corresponding playing sequence of the LCD display module respectively if the playing state of the LCD display module is in a playing mode so as to realize that the plurality of LCD display modules respectively display different video frames to be played.
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