CN115328372B - Synchronous display method, synchronous display device, electronic equipment and storage medium - Google Patents

Synchronous display method, synchronous display device, electronic equipment and storage medium Download PDF

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Publication number
CN115328372B
CN115328372B CN202210912543.5A CN202210912543A CN115328372B CN 115328372 B CN115328372 B CN 115328372B CN 202210912543 A CN202210912543 A CN 202210912543A CN 115328372 B CN115328372 B CN 115328372B
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content
area
file
terminal
terminal device
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CN115328372A (en
Inventor
陈锡华
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Shenzhen Happycast Technology Co Ltd
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Shenzhen Happycast Technology Co Ltd
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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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/0485—Scrolling or panning
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/451—Execution arrangements for user interfaces
    • G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04806—Zoom, i.e. interaction techniques or interactors for controlling the zooming operation

Abstract

The application relates to a synchronous display method, a device, electronic equipment and a storage medium, wherein the method is applied to a cloud server in a conference system, the conference system comprises the cloud server and a plurality of terminal equipment, the cloud server is connected with each terminal equipment of the plurality of terminal equipment, the cloud server is used for controlling a cloud desktop, the plurality of terminal equipment is used for displaying the cloud desktop, and the method comprises the following steps: receiving a first control instruction sent by a first terminal device, wherein the first control instruction is used for controlling content displayed on a cloud desktop, and the first terminal device is one of a plurality of terminal devices; responding to the first control instruction, and updating the content displayed on the cloud desktop; and sending the updated cloud desktop to a second terminal device, wherein the second terminal device is any one of a plurality of terminal devices. By implementing the method and the device, the time delay for synchronously displaying the first terminal device and the second terminal device can be reduced.

Description

Synchronous display method, synchronous display device, electronic equipment and storage medium
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a synchronous display method, a synchronous display device, an electronic device, and a storage medium.
Background
With the development of network technology and communication technology, more and more conferences are conducted using networks. In the current conference system, the terminal devices can upload data to be shared to the cloud server according to the data, and the cloud server generates a data stream based on the data and sends the data stream to other terminal devices, so that the data sharing of a plurality of terminal devices in the conference process can be realized.
Generally, when a user operates content displayed on a display interface on a first terminal device, after the first terminal device needs to respond to the operation of the user, the display interface is updated, the updated display interface is sent to a cloud server, and then the cloud server sends the updated display interface to other terminal devices for display. The first terminal device is one of a plurality of terminal devices connected with the cloud server.
However, in this sharing manner, other terminal devices cannot timely receive the updated display interface of the first terminal device, which results in a large delay of synchronous display between the first terminal device and other terminal devices.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present application is to provide a synchronous display method, apparatus, electronic device and storage medium, which aim to solve the problem of large delay of synchronous display of terminal devices in a conference system.
In a first aspect, an embodiment of the present application provides a synchronous display method, where the method is applied to a cloud server in a conference system, where the conference system includes the cloud server and a plurality of terminal devices, the cloud server is connected to each terminal device of the plurality of terminal devices, the cloud server is used for controlling a cloud desktop, and the plurality of terminal devices are used for displaying the cloud desktop, and includes:
receiving a first control instruction sent by a first terminal device, wherein the first control instruction is used for controlling the content displayed by the cloud desktop, and the first terminal device is one of the plurality of terminal devices;
responding to the first control instruction, and updating the content displayed by the cloud desktop;
and sending the updated cloud desktop to a second terminal device, wherein the second terminal device is any one of the plurality of terminal devices.
In the embodiment of the application, when the first terminal equipment detects that the user operates on the display interface of the first terminal equipment, the cloud server can update the cloud desktop through the first control instruction, and the first terminal equipment does not need to wait for uploading the updated display interface after updating the display interface of the first terminal equipment, so that the time delay of synchronous display of the first terminal equipment and the second terminal equipment can be reduced. It can be understood that the computing power of the cloud server is greater than that of the first terminal device, and the cloud server can update the content displayed on the cloud desktop faster in response to the first control instruction, so that the time delay of synchronous display of the first terminal device and other terminal devices is reduced.
In one possible implementation manner, the first control instruction includes any one of an zoom-in instruction, a zoom-out instruction, a translation instruction, and a rotation instruction, and the first control instruction includes a location identifier, where the location identifier is used to indicate a first area on the cloud desktop, and content displayed by the first area;
the updating the content displayed by the cloud desktop comprises the following steps:
and updating the content displayed in the first area.
In this embodiment of the present application, the first area is an area where the first control instruction controls to change display content, the first area is indicated by the location identifier, and the cloud server may quickly determine the first area based on the location identifier, and update the content displayed in the first area. The cloud server only needs to update the content displayed in the first area, so that the time for updating the cloud desktop can be shortened, and the display efficiency is improved.
In a possible implementation manner, the content displayed in the first area includes content of a first file, where the first file is uploaded by any one of the plurality of terminal devices, and before receiving the first control instruction sent by the first terminal device, the method further includes:
Receiving the first file;
dividing the content of the first file into a plurality of content partitions;
marking the content partitions to obtain a plurality of identifiers corresponding to the content partitions;
and sending the first file to the first terminal equipment.
In the embodiment of the application, the cloud server can conduct content partition with the first file and identify each content partition, so that the cloud server can quickly determine the displayed content based on the identification of the content partition.
In one possible implementation, the location identification includes an identification of at least one content partition of the plurality of content partitions, and the updating the content displayed in the first area includes:
and displaying the content of the at least one content partition in the first area.
In the embodiment of the application, the cloud server can quickly determine the at least one content partition based on the identification of the at least one content partition, so that the content displayed in the first area can be quickly updated, and the display efficiency is improved.
In one possible implementation, the location identity includes one or more coordinates of the first region, the one or more coordinates including upper left and lower right vertex coordinates of the first region, or the one or more coordinates including upper left and upper right vertex coordinates of the first region.
In this embodiment, the location identifier includes upper left vertex coordinates and lower right vertex coordinates of the first region, or the location identifier includes lower left vertex coordinates and upper right vertex coordinates of the first region. The position identifier only needs to indicate the first area through two vertex coordinates of the first area, so that the data volume of the first control instruction can be reduced.
In one possible implementation, the first text is a text type, and the location identifier includes one or more of a text paragraph, a number of rows, and a number of columns.
In this implementation manner, the first control instruction indicates the content displayed in the first area through text paragraphs, lines or columns, so that the cloud server can update the content displayed in the first area based on the text paragraphs, lines or columns.
In one possible implementation manner, the first control instruction includes a zoom-in instruction or a zoom-out instruction, and the position identifier includes a first coordinate point and a zoom-in or a zoom-out multiple, where the first coordinate point is a zoom-in center coordinate point or a zoom-out center coordinate point in the first area.
In this implementation manner, the first control instruction may include an enlargement factor or a reduction factor, and an enlarged or reduced central coordinate point, so that the cloud server can execute a corresponding enlargement or reduction operation, and signaling overhead of the first control instruction can be reduced.
In one possible implementation manner, the first control instruction includes a translation instruction, and the position identifier includes a second coordinate point and a first distance, where the second coordinate point is any coordinate point in the first area, and the first distance is a distance for translating the second coordinate point.
In this implementation manner, the first control instruction can instruct the cloud server to complete the responsive translation operation only through the second coordinate point and the first distance, so that the signaling overhead of the first control instruction can be saved.
In one possible implementation manner, the first control instruction includes a rotation instruction, and the position identifier includes a third coordinate point and a fourth coordinate point, where the third coordinate point and the fourth coordinate point are any two coordinate points in the first area.
In one possible implementation, the plurality of terminal devices may include terminal devices of at least one conference space, each of the at least one conference space including one or more primary display devices, the second terminal device being a first primary display device in a first conference space, the first conference space being any of the at least one conference space.
In the embodiment of the application, the conference space is the same conference scene, for example, a conference room. The terminal devices in one conference space may be terminal devices in the same conference scene. The primary display device in the conference space may be used to display a display device that is viewed by all users in the conference scene, such as a large screen device in the conference room. The cloud server may send the updated cloud desktop to the primary display device in the first meeting space such that the updated cloud desktop can be shared to individual users in the first meeting space.
In a possible implementation manner, before the receiving the first control instruction sent by the first terminal device, the method further includes:
receiving a control authority acquisition request sent by the first terminal equipment;
and determining the first terminal equipment as a control terminal.
In the embodiment of the present application, the first terminal device is a control terminal, and the cloud server responds to the first control instruction after receiving the first control instruction sent by the first terminal device, so as to complete control over the cloud desktop. Only one control terminal is provided at the same time, and the first terminal device needs to acquire control authority from the cloud server before controlling the cloud desktop, so that instruction conflict caused by simultaneous control of a plurality of terminal devices on the cloud desktop can be avoided.
In a second aspect, an embodiment of the present application provides a synchronous display device, including:
the cloud desktop display control device comprises a receiving unit, a display unit and a display unit, wherein the receiving unit is used for receiving a first control instruction sent by first terminal equipment, and the first control instruction is used for controlling the content displayed by the cloud desktop;
the processing unit is used for responding to the first control instruction and updating the content displayed by the cloud desktop;
and the sending unit is used for sending the updated cloud desktop to the second terminal equipment.
In one possible implementation manner, the first control instruction includes any one of an zoom-in instruction, a zoom-out instruction, a translation instruction, and a rotation instruction, and the first control instruction includes a location identifier, where the location identifier is used to indicate a first area on the cloud desktop, and content displayed by the first area;
the processing unit is specifically configured to update the content displayed in the first area.
In one possible implementation manner, the content displayed in the first area includes content of a first file, where the first file is uploaded by any one of the plurality of terminal devices;
the receiving unit is further used for receiving the first file;
the processing unit is further used for dividing the content of the first file into a plurality of content partitions; marking the content partitions to obtain a plurality of identifiers corresponding to the content partitions;
The sending unit is further configured to send the first file to the first terminal device.
In a possible implementation, the location identification includes an identification of at least one content partition of the plurality of content partitions, and the processing unit is specifically configured to display the content of the at least one content partition in the first area.
In one possible implementation, the first text is a text type, and the location identifier includes one or more of a text paragraph, a number of rows, and a number of columns.
In one possible implementation, the plurality of terminal devices may include terminal devices of at least one conference space, each of the at least one conference space including one or more primary display devices, the second terminal device being a first primary display device in a first conference space, the first conference space being any of the at least one conference space.
In a possible implementation manner, the receiving unit is further configured to receive a control right acquisition request sent by the first terminal device;
the processing unit is further configured to determine the first terminal device as a control terminal.
In a third aspect, the present application provides an electronic device, comprising: a memory, a processor, wherein the memory and the processor are communicatively connected to each other; wherein the memory stores program instructions; the program instructions, when executed by the processor, cause the processor to perform the method as described in the first aspect or any possible implementation of the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored therein; the computer program, when run on one or more processors, performs the method as described in the first aspect or any possible implementation of the first aspect.
In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform a method as described in the first aspect of the embodiments of the present application or any of the possible implementations of the first aspect.
Drawings
Fig. 1 is a schematic structural diagram of a conference system according to an embodiment of the present application;
Fig. 2 is a schematic flow chart of a synchronous display method according to an embodiment of the present application;
fig. 3 is a flow chart of another synchronous display method according to an embodiment of the present application;
fig. 4 is a schematic diagram of a cloud desktop according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a plurality of content partitions of a first file according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a first area according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a synchronous display device according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a conference system according to an embodiment of the present application. The conference system mentioned in the application may include a cloud server and at least two terminal devices, and the at least two terminal devices may conduct a teleconference through a virtual space created by the server. The at least two terminal devices may be located in the same place or in the same scene, or the at least two terminal devices may be located in different places or in different scenes, respectively. For example, part of the terminals of the at least two terminal devices are in a fixed indoor scenario such as in an office or at home, etc., while another part of the terminal devices are in a moving outdoor scenario such as on a high-speed rail or in a car, etc., without limitation. As shown in fig. 1, taking an example in which the conference system includes one cloud server 101 and three terminal apparatuses 102, 103, 104, the cloud server 101 is communicatively connected to each terminal apparatus, respectively, and the cloud server 101 creates a virtual space so that the three terminal apparatuses 102, 103, 104 conduct a target conference using the virtual space. It can be appreciated that the cloud server 101 may be a server cluster or a server deployed in a distributed manner, and the terminal devices 102, 103, 104 may include, but are not limited to, mobile phones, tablet computers, notebook computers, netbooks, and other electronic devices. It will be appreciated that the number and configuration of the apparatus shown in fig. 1 is for example and is not limiting of the embodiments of the present application.
The cloud server in the application is a device capable of creating a conference group and providing conference services. The cloud server in the present application may be alternatively described as "server", "cloud space", or the like.
In the conference system shown in fig. 1, the terminal device 102 and the terminal devices 103 and 104 perform a conference through a virtual space created by the cloud server 101, and in the process of performing the conference, the terminal devices 102, 103 and 104 can acquire permission, such as microphone permission, camera permission and screen sharing permission, according to the information started by the terminal devices, collect real-time voice of a user, shoot a real-time picture of a scene where the user is located or record a shared picture on a terminal desktop, and the like, so as to generate a multimedia data stream, and upload the generated multimedia data stream to the cloud server 101 in real time, and after receiving the multimedia data stream, the cloud server 101 can process the multimedia data stream and then send the multimedia data stream to other terminal devices except for the terminal device which originally uploads the multimedia data stream, so that a plurality of terminal devices can share data, such as voice, document or video, in real time in the conference.
Generally, when a user operates content displayed on a display interface on a first terminal device, after the first terminal device needs to respond to the operation of the user, the display interface is updated, the updated display interface is sent to a cloud server, and then the cloud server sends the updated display interface to other terminal devices for display. The first terminal device is one of a plurality of terminal devices connected with the cloud server. In the sharing mode, other terminal equipment cannot timely receive the updated display interface of the first terminal equipment, so that the time delay of synchronous display of the first terminal equipment and other terminal equipment is prolonged.
In view of this, the embodiment of the present application provides a synchronous display method, which can reduce the delay of synchronous display of terminal devices in a conference system. The synchronous display method provided by the embodiment of the application can be applied to a cloud server in the conference system shown in fig. 1. The conference system comprises the cloud server and a plurality of terminal devices, wherein the cloud server is connected with each terminal device of the plurality of terminal devices, the cloud server is used for controlling a cloud desktop, and the plurality of terminal devices are used for displaying the cloud desktop. Referring to fig. 2, fig. 2 is a flowchart of a synchronous display method according to an embodiment of the present application. As shown in fig. 2, the synchronous display method includes, but is not limited to, the following steps.
And 201, receiving a first control instruction sent by a first terminal device, wherein the first control instruction is used for controlling content displayed on a cloud desktop.
In the embodiment of the application, the cloud server can create a virtual space, and the plurality of terminal devices can conference through the virtual space created by the cloud server. In the conference process, the cloud server can control the cloud desktop, record the cloud desktop in real time, generate a video stream and send the video stream to the plurality of terminal devices. The plurality of terminal devices receive and display the video stream, thereby realizing synchronous display of the plurality of terminal devices.
The first terminal device is one of a plurality of terminal devices connected with the cloud server in the conference system. The first control instruction may be generated after the first terminal device detects that the user performs a first operation on the cloud desktop on the display interface. The first terminal equipment generates a first control instruction after detecting that a user performs a first operation on a cloud desktop on a display interface of the first terminal equipment, and sends the first control instruction to a cloud server. The first operation may include any one of an enlargement operation, a reduction operation, a translation operation, and a rotation operation.
It can be understood that, before the first terminal device detects that the user performs the first operation on the display interface of the first terminal device, the first terminal device receives the cloud desktop sent by the cloud server, and displays the cloud desktop. Under the condition that the first operation of the user on the display interface is detected, the first control instruction is generated, and the control instruction is sent to the cloud server, so that the cloud server can update the cloud desktop according to the first control instruction.
In some implementations, before receiving the first control instruction sent by the first terminal device in step 201, the method further includes the following steps:
Receiving a control authority acquisition request sent by first terminal equipment;
the first terminal device is determined as a control terminal.
The control terminal is a terminal device with cloud desktop control authority in the plurality of terminal devices. It can be understood that only one terminal device has the control authority of the cloud desktop at the same time. Therefore, before the first terminal device generates the first control instruction, the first terminal device needs to acquire the control authority of the cloud desktop. The first terminal device may send a control right obtaining request to the cloud server to obtain the control right of the cloud desktop. After receiving the control authority acquisition request sent by the first terminal device, the cloud server can verify the identity of the first terminal device. And under the condition that verification is passed, determining that the first terminal equipment has the control authority of the cloud desktop, and setting the first terminal equipment as a control terminal.
It can be understood that the cloud server only needs to respond to the control instruction sent by the control terminal. The cloud server may not receive the control instruction sent by the non-control terminal, or the cloud server may not respond after receiving the control instruction sent by the non-control terminal.
In the embodiment of the present application, the first terminal device is a control terminal, and the cloud server responds to the first control instruction after receiving the first control instruction sent by the first terminal device, so as to complete control over the cloud desktop. Only one control terminal is provided at the same time, so that instruction conflict caused by simultaneous control of a plurality of terminal devices on the cloud desktop can be avoided.
202, in response to the first control instruction, updating the content displayed on the cloud desktop.
After the cloud server receives the first control instruction, the first control instruction is analyzed, and a first operation corresponding to the first control instruction is determined. And carrying out the first operation on the cloud desktop, so as to update the content of the cloud desktop. For example, the first control instruction is used for controlling the cloud desktop to zoom in, and the cloud server zooms in on the cloud desktop based on the first control instruction, so that the updated cloud desktop is obtained.
And 203, sending the updated cloud desktop to the second terminal equipment.
After the cloud server updates the cloud desktop, the updated cloud desktop is sent to the second terminal device for display. The second terminal device is one of a plurality of terminal devices.
In one possible implementation manner, the cloud server may further send the updated cloud desktop to the first terminal device, so that the first terminal device displays the updated cloud desktop. The cloud server sends the updated cloud desktop to the first terminal device and the second terminal device for display. In the implementation mode, the cloud server and the cloud desktop are updated, and the updated cloud desktop is sent to the first terminal device and the second terminal device, so that the time delay of synchronous display of the first terminal device and the second terminal device is reduced.
In another possible implementation manner, the cloud server does not send the updated cloud desktop to the first terminal device. When the first terminal device detects that a user performs a first operation on the cloud desktop on the display interface of the first terminal device, the first terminal device can respond to the first operation, so that the display interface of the first terminal device is updated, meanwhile, a first control instruction is generated, the first control instruction is sent to the cloud server, and the cloud server updates the cloud desktop based on the first control instruction. In the implementation manner, the first terminal equipment directly responds to the first operation without receiving the updated cloud desktop returned by the cloud server, and the display interface is updated, so that the time delay of the display of the first terminal equipment is reduced.
In the embodiment of the application, when the first terminal equipment detects that the user operates on the display interface of the first terminal equipment, the cloud server can update the cloud desktop through the first control instruction, and the first terminal equipment does not need to wait for uploading the updated display interface after updating the display interface of the first terminal equipment, so that the time delay of synchronous display can be reduced. It can be understood that the computing power of the cloud server is greater than that of the first terminal device, and the cloud server can update the content displayed on the cloud desktop faster in response to the first control instruction, so that the time delay of synchronous display of the first terminal device and other terminal devices is reduced.
Referring to fig. 3, fig. 3 is a flowchart of another synchronous display method according to an embodiment of the present application. As shown in fig. 3, the synchronous display method includes, but is not limited to, the following steps.
301, the cloud server receives a first control instruction sent by a first terminal device.
The first control instruction is used for controlling content displayed by the cloud desktop, and the first terminal equipment is a control terminal with cloud desktop control authority in a plurality of terminal equipment in a conference system.
In one possible implementation, the content displayed by the cloud desktop includes content of a first file uploaded by any one of the plurality of terminal devices.
In the embodiment of the present application, any one of the plurality of terminal devices may upload a file to the virtual space, so as to implement file sharing. The control terminal can operate any file in the virtual space through the cloud table. For example, the control terminal may display or edit the first file through a cloud desktop.
The content displayed on the cloud desktop comprises the content of the first file, namely the first control instruction is used for controlling the first file displayed on the cloud desktop.
In the embodiment of the application, a plurality of terminal devices participating in a conference can upload files to be shared to a virtual space created by a cloud server in advance. In the conference process, the uploaded files can be controlled through the cloud table, so that the time delay of uploading the files in the conference process is avoided, and the conference efficiency is improved.
302, the cloud server responds to the first control instruction to update the content displayed in the first area.
The first control instruction includes any one of an enlargement instruction, a reduction instruction, a translation instruction, and a rotation instruction. The first control instruction includes a location identifier that indicates a first area on the cloud desktop. The first area is an area where the first control instruction controls the display content to be changed.
For example, as shown in fig. 4, the cloud desktop may include a first region and a second region thereon, and the first control instruction may include an amplifying instruction. That is, the first control instruction is used to control the content displayed in the first area to be displayed in an enlarged manner. And the cloud server responds to the first control instruction to amplify the content displayed in the first area, so that the updating of the content displayed in the first area is completed. For example, the content displayed in the first area is "a", and the cloud server enlarges and displays "a" in response to the first control instruction.
In one possible implementation, the location identifier comprises one or more coordinates of the first region, the one or more coordinates comprising upper left vertex coordinates and lower right vertex coordinates of the first region, or the one or more coordinates comprising lower left vertex coordinates and upper right vertex coordinates of the first region. I.e. the position indication comprises the upper left vertex coordinates and the lower right vertex coordinates of the first area, or the position indication comprises the lower left vertex coordinates and the upper right vertex coordinates of the first area. In this implementation, the location identifier only needs to indicate the first region through two vertex coordinates of the first region, so that the data amount of the first control instruction can be reduced.
303, the cloud server sends the updated cloud desktop to the second terminal device.
In this embodiment of the present application, the first area is an area where the first control instruction controls to change display content, the first area is indicated by the location identifier, and the cloud server may quickly determine the first area based on the location identifier, and update the content displayed in the first area. The cloud server only needs to update the content displayed in the first area, so that the time for updating the cloud desktop can be shortened, and the display efficiency is improved.
In one possible implementation, the plurality of terminal devices may include terminal devices of at least one conference space, each of the at least one conference space including one or more primary display devices, the second terminal device being a first primary display device in a first conference space, the first conference space being any one of the at least one conference space.
The meeting space is the same meeting scene, e.g., a meeting room. The terminal devices in one conference space may be terminal devices in the same conference scene. The primary display device in the conference space may be used to display a display device that is viewed by all users in the conference scene, such as a large screen device in the conference room.
The cloud server may send the updated cloud desktop to the primary display device in the first meeting space, thereby providing the updated cloud desktop to the users in the meeting space. It can be understood that the cloud server may send the updated cloud desktop to other terminal devices in the first meeting space except the main display device, or may not send the updated cloud desktop to other terminal devices, which is not limited in this application.
For example, the plurality of terminal devices may be terminal devices from two conference spaces, a first conference space and a second conference space, respectively, and the cloud server may send updated cloud desktops to the second terminal device and a third terminal device, which is a main display device in the second conference space.
In this embodiment of the present application, the cloud server may send the updated cloud desktop to the main display device in the first meeting space, so that the updated cloud desktop can be shared to each user in the first meeting space.
To introduce the above location identification in more detail, embodiments of the present application also provide several implementations as follows. The location identification in fig. 3 may include one of several implementations.
The implementation mode is as follows: the first file includes a plurality of content partitions, and the location identification includes an identification of at least one of the plurality of content partitions.
In this implementation manner, before the cloud server receives the first control instruction sent by the first terminal device, the synchronous display method further includes the following steps: receiving a first file, and dividing the content of the first file into a plurality of content partitions; marking the plurality of content partitions to obtain a plurality of identifiers corresponding to the plurality of content partitions; and sending the marked first file to the first terminal equipment.
Illustratively, each of the plurality of content partitions corresponds to one of the plurality of identifications. The first file may be transmitted by any one of the plurality of terminal devices.
When the cloud server performs content partitioning on the first file, the number of the plurality of content partitions and the size of each content partition can be determined based on the precision requirement. For example, the higher the accuracy requirement, the greater the number of the plurality of content partitions, and the less content each content partition contains.
After the cloud server divides the content of the first file into a plurality of content partitions, the plurality of content partitions are marked. For example, the cloud server numbers the plurality of content partitions in chronological order. In some implementations, the cloud server can number the plurality of content partitions based on their locations in the first file. For example, as shown in fig. 5, the first file may be divided into 12 content partitions, i.e., the lateral distribution includes 3 content partitions and the longitudinal distribution includes 4 content partitions. The cloud server may number the 12 content partitions based on the lateral and longitudinal locations of the 12 content partitions. For example, a first content partition may be identified as (1, 1) if it is a first content partition that is distributed laterally and a first content partition that is distributed longitudinally. In the case where the first file includes multiple pages, the multiple content partitions may also be numbered based on the number of pages of the first file. For example, fig. 5 shows a second page in the first file, then the first content partition may be marked (2, 1).
After the cloud server completes marking the plurality of content partitions, the marked first file may be sent to the first terminal device.
In some implementations, the cloud server sends the marked first file to the first terminal device when receiving the first file acquisition request sent by the first terminal device. Or under the condition that the cloud server receives the opening request of the first file sent by the first terminal equipment, the identified first file is sent to the first terminal equipment. The first terminal equipment receives and opens the first file, and the first file is displayed on a display interface of the first terminal equipment.
In one possible implementation, the content of the first file includes a plurality of content partitions, the location identifier further includes an identifier of at least one content partition of the plurality of content partitions, and updating the content displayed in the first area includes:
and displaying the content of the at least one content partition in the first area.
For example, after the first terminal device opens the first file, the operation of the user on the display interface of the first file may be detected. When the operation of the user on the display interface is detected, a first control instruction is generated, and the first control instruction is sent to the cloud server. The first control instruction includes a location identification including an identification of at least one of a plurality of content partitions in the first file.
The at least one content partition is the content displayed in the first area. The cloud server displays content in the at least one content area in the first area after receiving the first control instruction.
For example, the identification of the at least one content partition includes (3, 1), (3, 2), (3, 3), (4, 1), (4, 2), and (4, 3), and the content partition displayed before and after the first area update may be as shown in fig. 6. That is, the content displayed in the first area before the update is the content corresponding to the content partitions identified as (1, 1), (1, 2), (1, 3), (2, 1), (2, 2), and (2, 3). After the cloud server updates the content displayed in the first area, the content displayed after the first area update is content corresponding to the content partitions identified as (3, 1), (3, 2), (3, 3), (4, 1), (4, 2) and (4, 3). I.e. the content of the at least one content partition is displayed in the first area.
In the embodiment of the application, the marking of each content partition in the first file can be completed by preprocessing the first file. When the first terminal equipment operates a first file displayed on a display interface of the first terminal equipment, determining at least one content partition corresponding to the first operation, and sending the identification of the at least one content partition to the cloud server. The cloud server updates the content displayed in the first area based on the identification of the at least one content partition, and displays other terminal devices sent by the updated first area, so that synchronous display of the first terminal device and the other terminal devices is realized. The cloud server can quickly determine the at least one content partition based on the identification of the at least one content partition, so that the content displayed in the first area can be quickly updated, and the display efficiency is improved.
The implementation mode II is as follows: the first text is of a text type, and the position identifier comprises one or more of a text paragraph, a line number and a column number.
The first control instruction is used for controlling the content displayed in the first area to be the content indicated by the text paragraph or the line number or the column number. For example, if the text paragraph indicates a third paragraph in the first file, the cloud server displays the third paragraph of the first file in the first area. For another example, the number of rows indicates a fifth row to a tenth row in the first file, the number of columns indicates a fifth column to a sixth column in the first file, and the cloud server displays the fifth row to the tenth row, and the fifth column to the sixth column of the first file in the first area.
In this implementation manner, the first control instruction indicates the content displayed in the first area through text paragraphs, lines or columns, so that the cloud server can update the content displayed in the first area based on the text paragraphs, lines or columns.
And the implementation mode is three: the first control instruction comprises an amplifying instruction or a shrinking instruction, the position mark comprises a first coordinate point and an amplifying multiple or a shrinking multiple, and the first coordinate point is an amplifying center coordinate point or a shrinking center coordinate point in the first area.
And after the cloud server receives the first control instruction, amplifying the content displayed in the first area by the amplification factor by taking the amplification center coordinate point as the center, thereby completing updating of the content displayed in the first area. Or after receiving the first control instruction, the cloud server reduces the content displayed in the first area by the reduction multiple by taking the reduction center coordinate point as the center, thereby completing the updating of the content displayed in the first area. In this implementation manner, the first control instruction may include an enlargement factor or a reduction factor, and an enlarged or reduced central coordinate point, so that the cloud server can execute a corresponding enlargement or reduction operation, and signaling overhead of the first control instruction can be reduced.
The implementation mode is four: the first control instruction comprises a translation instruction, the position mark comprises a second coordinate point and a first distance, the second coordinate point is any coordinate point in the first area, and the first distance is the translation distance of the second coordinate point.
The first control instruction is used for controlling the content displayed in the first area to translate. The position identifier comprises a second coordinate point and a first distance, and the cloud server can determine the translation direction and the translation distance based on the second coordinate point and the first distance and perform corresponding translation operation on the content displayed in the first area, so that the content displayed in the first area is updated. In this implementation manner, the first control instruction can instruct the cloud server to complete the responsive translation operation only through the second coordinate point and the first distance, so that the signaling overhead of the first control instruction can be saved.
The implementation mode is five: the first control instruction comprises a rotation instruction, and the position identifier comprises a third coordinate point and a fourth coordinate point, wherein the third coordinate point and the fourth coordinate point are any two coordinate points in the first area.
The first control instruction is used for controlling the content displayed in the first area to rotate. The cloud server may determine a rotation angle based on the third coordinate point and the fourth coordinate point. In this implementation manner, the cloud server may be instructed to rotate the content displayed in the first area only through two coordinate points, so that signaling overhead of the first control instruction can be saved.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a synchronous display device according to an embodiment of the present application. As shown in fig. 7, the synchronous display device 700 includes a receiving unit 701, a processing unit 702, and a transmitting unit 703.
A receiving unit 701, configured to receive a first control instruction sent by a first terminal device, where the first control instruction is used to control content displayed by the cloud desktop;
the processing unit 702 is configured to update content displayed on the cloud desktop in response to the first control instruction;
and the sending unit 703 is configured to send the updated cloud desktop to the second terminal device.
In one possible implementation manner, the first control instruction includes any one of an zoom-in instruction, a zoom-out instruction, a translation instruction, and a rotation instruction, and the first control instruction includes a location identifier, where the location identifier is used to indicate a first area on the cloud desktop, and content displayed by the first area;
the processing unit 702 is specifically configured to update the content displayed in the first area.
In one possible implementation manner, the content displayed in the first area includes content of a first file, where the first file is uploaded by any one of the plurality of terminal devices;
the receiving unit 701 is further configured to receive a first file;
the processing unit 702 is further configured to divide the content of the first file into a plurality of content partitions; marking the content partitions to obtain a plurality of identifiers corresponding to the content partitions;
the sending unit 703 is further configured to send the first file to the first terminal device.
In one possible implementation, the location identification includes an identification of at least one of the plurality of content partitions; the processing unit 702 is specifically configured to display the content of the at least one content partition in the first area.
In one possible implementation, the first text is a text type, and the location identifier includes one or more of a text paragraph, a number of rows, and a number of columns.
In one possible implementation, the plurality of terminal devices may include terminal devices of at least one conference space, each of the at least one conference space including one or more primary display devices, the second terminal device being a first primary display device in a first conference space, the first conference space being any of the at least one conference space.
In a possible implementation manner, the receiving unit 701 is further configured to receive a control permission acquisition request sent by the first terminal device;
the processing unit 702 is further configured to determine the first terminal device as a control terminal.
It should be understood that the above division of each unit in the synchronous display device is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. For example, the above units may be processing elements set up separately, may be implemented in a certain chip of the terminal, or may be stored in a memory element of the controller in the form of program codes, and the functions of the above units may be called and executed by a certain processing element of the processor. In addition, the units can be integrated together or can be independently realized. The processing element here may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. The processing element may be a general-purpose processor, such as a central processing unit (English: central processing unit; CPU for short), or one or more integrated circuits configured to implement the above methods, such as: one or more specific integrated circuits (English: application-specific integrated circuit; ASIC), or one or more microprocessors (English: digital signal processor; DSP), or one or more field programmable gate arrays (English: field-programmable gate array; FPGA), etc.
With respect to the synchronous display device 700 in the above-described embodiment, a specific manner in which each module performs an operation has been described in detail in the embodiment regarding the method, and will not be described in detail herein.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 8, the electronic device 80 includes a processor 801 and a memory 802. The processor 801 and the memory 802 may be connected to each other through a communication bus 803. The communication bus 803 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The communication bus 803 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus. The memory 802 is used for storing a computer program comprising program instructions, the processor 801 being configured to invoke the program instructions, the program comprising steps for performing part or all of the synchronous display method shown in fig. 2, 3.
The processor 801 may be a general purpose Central Processing Unit (CPU), microprocessor, application Specific Integrated Circuit (ASIC), or one or more integrated circuits for controlling the execution of the above program schemes.
The memory 802 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, a compact disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be stand alone and coupled to the processor via a bus. The memory may also be integrated with the processor.
Embodiments of the present application also provide a computer readable storage medium, where a computer program is stored, where the computer program may implement the method shown in fig. 2 or fig. 3 when the computer program runs on one or more processors.
Embodiments of the present application also provide a computer program product that, when run on a processor, may implement the method shown in fig. 2 or fig. 3.
The present embodiments also provide a system comprising at least one of the above-described synchronous display device 700 or electronic apparatus 80 or chip.
It is to be understood that the application of the present application is not limited to the examples described above, but that modifications and variations can be made by a person skilled in the art from the above description, all of which modifications and variations are intended to fall within the scope of the claims appended hereto.

Claims (8)

1. The method is applied to a cloud server in a conference system, the conference system comprises the cloud server and a plurality of terminal devices, the cloud server is connected with each terminal device of the plurality of terminal devices, the cloud server is used for controlling a cloud desktop, and the plurality of terminal devices are used for displaying the cloud desktop, and the method comprises the following steps:
Receiving a first file, wherein the first file is uploaded by any one of the plurality of terminal devices;
dividing the content of the first file into a plurality of content partitions;
numbering the plurality of content partitions based on a number of pages of the first file, where the first file includes a plurality of pages;
marking the content partitions to obtain a plurality of identifiers corresponding to the content partitions;
the first file is sent to first terminal equipment;
receiving a first control instruction sent by the first terminal device, wherein the first control instruction is used for controlling the content displayed by the cloud desktop, and the first terminal device is one of the plurality of terminal devices; the first control instruction comprises any one of an amplifying instruction, a shrinking instruction, a translation instruction and a rotation instruction, and comprises a position identifier, wherein the position identifier is used for indicating a first area on the cloud desktop and content displayed in the first area; the first area is a part of the display area of the cloud desktop, and the content displayed in the first area comprises the content of the first file;
Updating the content displayed in the first area in response to the first control instruction;
and sending the updated cloud desktop to a second terminal device, wherein the second terminal device is any one of the plurality of terminal devices.
2. The method of claim 1, wherein the location identification comprises an identification of at least one of the plurality of content partitions, and wherein updating the content displayed in the first area comprises:
and displaying the content of the at least one content partition in the first area.
3. The method of claim 2, wherein the first text is a text type and the location identifier comprises one or more of a paragraph of text, a number of rows, and a number of columns.
4. A method according to any of claims 1-3, characterized in that the plurality of terminal devices may comprise terminal devices of at least one conference space, each of the at least one conference space comprising one or more main display devices, the second terminal device being a first main display device in a first conference space, the first conference space being any of the at least one conference space.
5. The method of claim 1, wherein prior to receiving the first control instruction sent by the first terminal device, the method further comprises:
receiving a control authority acquisition request sent by the first terminal equipment;
and determining the first terminal equipment as a control terminal.
6. A synchronous display device, comprising:
a receiving unit, configured to receive a first file, where the first file is uploaded by any one of a plurality of terminal devices;
a processing unit for dividing the content of the first file into a plurality of content partitions; numbering the plurality of content partitions based on a number of pages of the first file, where the first file includes a plurality of pages; marking the content partitions to obtain a plurality of identifiers corresponding to the content partitions;
a sending unit, configured to send the first file to a first terminal device;
the receiving unit is further configured to receive a first control instruction sent by the first terminal device, where the first control instruction is used to control content displayed on the cloud desktop; the first control instruction comprises any one of an amplifying instruction, a shrinking instruction, a translation instruction and a rotation instruction, and comprises a position identifier, wherein the position identifier is used for indicating a first area on the cloud desktop and content displayed in the first area; the first area is a part of the display area of the cloud desktop, and the content displayed in the first area comprises the content of the first file;
The processing unit is further used for responding to the first control instruction and updating the content displayed in the first area;
the sending unit is further configured to send the updated cloud desktop to the second terminal device.
7. An electronic device comprising a processor and a memory;
the memory is used for storing instructions;
the processor is configured to execute the instructions to cause the method of any one of claims 1 to 5 to be performed.
8. A computer readable storage medium, characterized in that the computer readable storage medium is for storing a computer program which, when executed, is adapted to carry out the method of any one of claims 1 to 5.
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