CN114217762A - Method, server and equipment for online display of multiple equipment - Google Patents
Method, server and equipment for online display of multiple equipment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 230000004044 response Effects 0.000 claims description 42
- 238000004590 computer program Methods 0.000 claims description 29
- 230000001934 delay Effects 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 16
- 239000011159 matrix material Substances 0.000 description 7
- 241000251468 Actinopterygii Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 230000003631 expected effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
Abstract
The embodiment of the disclosure provides a method, a server and equipment for on-screen display of multiple pieces of equipment. The method is performed by a server connected to a plurality of devices. The method comprises the following steps: obtaining identification information, quantity and screen connection relation of a plurality of devices; dividing content to be displayed in a linked screen mode into split screen content aiming at corresponding equipment according to the number of the plurality of equipment and the linked screen relation; respectively sending the split screen content to corresponding equipment according to the identification information of the plurality of equipment; and sending an indication to the plurality of devices for synchronous display of the split-screen content.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of computers, in particular to a method, a server and equipment for displaying a plurality of equipment on screen.
Background
With the development of display technology, electronic screens are being applied to more and more fields. The use of screens has also changed from single-screen presentations to multi-screen joint presentations. In some large commercial places, such as shopping malls, in order to make the delivered advertisements more striking, the businesses may put multiple screens together and play a dynamic advertisement jointly by regarding them as a large screen. Wherein each screen displays a portion of an advertisement. For example, a merchant may expect the effect of multiple screens in combination to display the sequential tour of a fish from the first screen to the last screen. If the screens played jointly cannot achieve accurate synchronization, the expected effect cannot be achieved in visual effect. It may be the case that the fish head in the first screen has not disappeared and the fish head in the second screen has appeared. Or a situation where the fish head in the first screen has disappeared and the fish head in the second screen has not appeared. These situations are undesirable to merchants, and therefore, it is desirable to have accurate synchronization of multiple screens.
Disclosure of Invention
Embodiments described herein provide a method, server and device for multiple device on-screen display, and a computer-readable storage medium storing a computer program.
According to a first aspect of the present disclosure, a method for a multiple device on-screen display is provided. The method is performed by a server connected to a plurality of devices. The method comprises the following steps: obtaining identification information, quantity and screen connection relation of a plurality of devices; dividing content to be displayed in a linked screen mode into split screen content aiming at corresponding equipment according to the number of the plurality of equipment and the linked screen relation; respectively sending the split screen content to corresponding equipment according to the identification information of the plurality of equipment; and sending an indication to the plurality of devices for synchronous display of the split-screen content.
In some embodiments of the disclosure, the method further comprises: obtaining display parameters of a plurality of devices; and preprocessing the split screen content corresponding to each device according to the display parameters of the device.
In some embodiments of the present disclosure, sending an indication to a plurality of devices for synchronized display of split screen content comprises: and sending an indication for immediately displaying the split screen content to the plurality of devices at a preset time.
In some embodiments of the disclosure, the method further comprises: obtaining information on decoding speeds of a plurality of devices; determining display delays of the plurality of devices according to decoding speeds of the plurality of devices; and for each device, including a display delay for the device in the indication for synchronously displaying the split-screen content to instruct the device to display the split-screen content at the display delay.
In some embodiments of the disclosure, the method further comprises: receiving a calibration request from at least one of a plurality of devices; and in response to receiving the calibration request, sending a calibration response to the at least one device.
In some embodiments of the disclosure, the method further comprises: the rules for the on-screen display are sent to the plurality of devices.
In some embodiments of the present disclosure, the rules of the on-screen display include: display time, display duration and cycle display times.
According to a second aspect of the present disclosure, a method for multiple device on-screen display is provided. The method is performed by one of a plurality of devices. A plurality of devices are connected to a server. The method comprises the following steps: sending the identification information of the equipment to a server; receiving split screen content aiming at the equipment from a server, wherein the split screen content is obtained by dividing the content to be displayed in a split screen mode according to the number of the plurality of equipment and the split screen relation; receiving an indication from a server for synchronous display of split screen content; and displaying the split-screen content according to the indication.
In some embodiments of the disclosure, the method further comprises: transmitting information on a decoding speed of the device to a server; and displaying the split-screen content based on the display delay in response to receiving the display delay determined by the server according to the decoding speed of the device.
In some embodiments of the disclosure, the method further comprises: sending a calibration request to a server; receiving a calibration response to the calibration request from the server, the calibration response including a time at which the server received the calibration request and a time at which the server sent the calibration response; and in response to receiving the calibration response, adjusting a time at which the split screen content is displayed by the device based on a time at which the device sent the calibration request, a time at which the server received the calibration request, a time at which the server sent the calibration response, and a time at which the device received the calibration response.
In some embodiments of the disclosure, the method further comprises: and sending the display parameters of the equipment to a server.
In some embodiments of the disclosure, the method further comprises: in response to receiving an indication to immediately display the split-screen content, the split-screen content is immediately displayed.
In some embodiments of the disclosure, the method further comprises: receiving a rule of the on-screen display from the server, and in response to receiving the rule of the on-screen display, displaying the split-screen content according to the rule of the on-screen display.
In some embodiments of the present disclosure, the rules of the on-screen display include: display time, display duration and cycle display times.
According to a third aspect of the present disclosure, a server for a multiple device on-screen display is provided. The server is connected to a plurality of devices. The server includes at least one processor; and at least one memory storing a computer program. The computer program, when executed by the at least one processor, causes the server to obtain identification information, quantities, and screen-contacting relationships of the plurality of devices; dividing content to be displayed in a linked screen mode into split screen content aiming at corresponding equipment according to the number of the plurality of equipment and the linked screen relation; respectively sending the split screen content to corresponding equipment according to the identification information of the plurality of equipment; and sending an indication to the plurality of devices for synchronous display of the split-screen content.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the server to further obtain display parameters for the plurality of devices; and preprocessing the split screen content corresponding to each device according to the display parameters of the device.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the server to send an indication to the plurality of devices for synchronized display of split-screen content by: and sending an indication for immediately displaying the split screen content to the plurality of devices at a preset time.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the server to further obtain information about decoding speeds of the plurality of devices; determining display delays of the plurality of devices according to decoding speeds of the plurality of devices; and for each device, including a display delay for the device in the indication for synchronously displaying the split-screen content to instruct the device to display the split-screen content at the display delay.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the server to further receive a calibration request from at least one of the plurality of devices; and in response to receiving the calibration request, sending a calibration response to the at least one device.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the server to also send the rules for the on-screen display to the plurality of devices.
In some embodiments of the present disclosure, the rules of the on-screen display include: display time, display duration and cycle display times.
According to a fourth aspect of the present disclosure, there is provided a device for on-screen display with a plurality of other devices. The device and a plurality of other devices are connected to the server. The apparatus includes at least one processor; and at least one memory storing a computer program. The computer program, when executed by the at least one processor, causes the apparatus to transmit identification information of the apparatus to a server; receiving split screen content aiming at the equipment from a server, wherein the split screen content is obtained by dividing the content to be displayed in a split screen mode according to the number of the plurality of equipment and the split screen relation; receiving an indication from a server for synchronous display of split screen content; and displaying the split-screen content according to the indication.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the apparatus to further send information regarding a decoding speed of the apparatus to the server; and displaying the split-screen content based on the display delay in response to receiving the display delay determined by the server according to the decoding speed of the device.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the apparatus to further send a calibration request to the server; receiving a calibration response to the calibration request from the server, the calibration response including a time at which the server received the calibration request and a time at which the server sent the calibration response; and in response to receiving the calibration response, adjusting a time at which the split screen content is displayed by the device based on a time at which the device sent the calibration request, a time at which the server received the calibration request, a time at which the server sent the calibration response, and a time at which the device received the calibration response.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the apparatus to also send display parameters of the apparatus to the server.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the apparatus to further immediately display the split-screen content in response to receiving an indication to immediately display the split-screen content.
In some embodiments of the disclosure, the computer program, when executed by the at least one processor, causes the apparatus to further receive a rule of the on-screen display from the server, and in response to receiving the rule of the on-screen display, display the split-screen content in accordance with the rule of the on-screen display.
In some embodiments of the present disclosure, the rules of the on-screen display include: display time, display duration and cycle display times.
According to a fifth aspect of the present disclosure, there is provided a computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method according to the first aspect of the present disclosure.
According to a sixth aspect of the present disclosure, there is provided a computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method according to the second aspect of the present disclosure.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, it being understood that the drawings described below relate only to some embodiments of the present disclosure, and not to limit the present disclosure, wherein:
FIG. 1 is a schematic block diagram of a system for multiple device on-screen display in accordance with an embodiment of the present disclosure;
FIG. 2 is an exemplary flow diagram of a method performed by a server for multiple device on-screen display in accordance with an embodiment of the present disclosure;
FIG. 3 is an exemplary flow diagram of a method performed by a device for multiple device on-screen display in accordance with an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of adjusting the time at which a device displays split screen content according to an embodiment of the present disclosure;
FIG. 5 is a schematic block diagram of a server for multiple device on-screen display in accordance with an embodiment of the present disclosure; and
fig. 6 is a schematic block diagram of a device for multiple device on-screen display in accordance with an embodiment of the present disclosure.
The elements in the drawings are schematic and not drawn to scale.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are also within the scope of protection of the disclosure.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the presently disclosed subject matter belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the specification and relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. As used herein, the statement that two or more parts are "connected" or "coupled" together shall mean that the parts are joined together either directly or joined through one or more intermediate components. In addition, terms such as "first" and "second" are only used to distinguish one element (or part of an element) from another element (or another part of an element).
The implementation scheme of the multi-device on-screen display can comprise the following two modes. One implementation is a hardware-dependent solution. The method comprises the steps of decoding pictures or videos through a control host, dividing the decoded pictures or videos through a picture dividing converter, and transmitting the divided pictures or videos to a plurality of corresponding display devices through cables. The mode can accurately ensure the synchronism of the picture switching on the screen of each display device. However, this scheme requires a wired connection to be established between the screen division converter and the plurality of display devices, and requires payment of hardware cost. And in a scheme where a picture or video is divided by a picture division converter, it is actually one host that decodes. The decoding resolution supported by the host is up to 4K. If a 4K resolution picture or video needs to be split into 4 pictures or videos, the resolution of each picture or video can only reach up to 1080P. Therefore, the sharpness of the video may be limited in this scheme.
Another implementation is a software solution that relies on network synchronization. The scheme requires that a plurality of display devices are simultaneously accessed to the same network, and a combination comprising the plurality of display devices is established by using the IP addresses of the display devices. One display device within the combination is designated as a master device and the other devices are designated as slave devices. The master device and the slave device communicate with each other to realize accurate synchronous playing. The method can realize the splicing of high-definition pictures by utilizing the screens of a plurality of display devices, and does not need to pay extra hardware cost. But the use threshold is high, and the expected effect is difficult to achieve in the actual use process. On one hand, the display equipment is limited to be in the same network and cannot be cooperatively played across the network; on the other hand, depending on a good network environment, when a route of a network connected to the display device is overloaded, the data transmission delay of the route will cause the synchronism of the playing pictures between screens to be poor, and the actual playing effect is affected. Especially, when a wireless network connection mode is used, the actual playing effect is worse. Further, this scheme requires the display devices within the combination to communicate with each other once every time a file (material) is played. For example, if there are three display devices in a group (triple screen), then when they play a 10 second combined cycle of the on screen material, every 10 seconds, all three devices will need to make a network request to maintain synchronization. In the case of frequent network requests, errors due to network delay may occur for each play.
Embodiments of the present disclosure provide a system for multi-device on-screen display. Fig. 1 shows a schematic block diagram of a system 100 for multiple device on-screen display according to an embodiment of the present disclosure. The system 100 may include a server 110, a plurality of devices 120_1, 120_2, … … 120_ N, and an operator 130. The multiple devices may be peer-to-peer playback or display devices, which may be collectively referred to as devices 120. The multiple devices 120 may be positioned as desired to combine into one large screen. The large screen can be rectangular or polygonal, and can also be in other shapes which can be formed by a plurality of devices. Embodiments of the present disclosure are not limited to the shape of a large screen.
As shown in fig. 1, the server 110 may connect the device 120 and the console 130. The server 110 may be configured to segment content to be displayed on-screen into split-screen content for the respective devices 120, process and transmit the split-screen content, distribute and manage display tasks, and maintain synchronization of state information. The number of devices 120 may be, for example, N. The device 120 may connect to the server 110, upload local information, receive playback or display tasks, parse playback or display rules, and complete the display on the screen. The console 130 may be used for the user to select the device 120, upload content to be displayed on a screen, input rules for playing or displaying tasks, and view the execution status of the tasks.
Fig. 2 illustrates an exemplary flow diagram of a method 200 performed by server 110 for multiple device on-screen display according to an embodiment of the disclosure. The method 200 of fig. 2 for multiple device on-screen display performed by the server 110 is described below in conjunction with the example of fig. 1.
As shown in fig. 2, at block S202, the server obtains identification information, number, and on-screen relationship of the plurality of devices. In some embodiments of the present disclosure, the identification information of the plurality of devices 120 may be sent by each device 120 to the server 110. The identification information of the device 120 may be, for example, a MAC address of the device 120, a product serial number (SN code), or the like. For example, the device 120_1 transmits its MAC address (hereinafter, may be referred to as a first MAC address) to the server 110. The device 120_2 transmits its MAC address (hereinafter, may be referred to as a second MAC address) to the server 110. And so on.
In some embodiments of the present disclosure, the server 110 may determine the number of the plurality of devices 120 from the number of received identification information. For example, if server 110 receives N different identification information, server 110 may determine that the number of devices 120 is N. In some embodiments of the present disclosure, the server 110 may obtain the number of the plurality of devices 120 from the console side 130. The number of the plurality of devices 120 may be input to the console 130 by the user to be provided to the server 110. In some embodiments of the present disclosure, the server 110 may also obtain the screenshots of the plurality of devices 120 from the operations end 130. The screenable relationship may include the shape in which the plurality of devices 120 are laid out, and where in the shape each device 120 is located. For example, 9 devices 120 may be arranged in a 3 x 3 matrix. The server 110 should know the coordinates (x, y) of these 9 devices in the 3 x 3 matrix. Where x denotes a row number and y denotes a column number.
In some embodiments of the present disclosure, the server may also obtain display parameters of the plurality of devices 120 when obtaining the identification information, number, and on-screen relationship of the plurality of devices at block S202. The display parameter is, for example, the resolution of the device.
At block S204, the server divides the content to be displayed in a linked screen into split screen content for the respective devices according to the number of the plurality of devices and the linked screen relationship. In an example where 9 devices 120 are arranged in a 3 × 3 matrix, the server 110 may divide the content to be displayed on-screen into 9 split-screen contents of 3 × 3. For example, in the case where the content to be displayed on the screen is a plurality of pictures, each picture is divided into a 9-grid shape. And 9, correspondingly combining the pictures corresponding to the positions of each lattice in the grid to form split screen content. In the case where the content to be displayed on the screen is a video, the video is decoded into video frames, and each video frame is divided into a 9-grid shape. And 9, encapsulating the video frame corresponding to each lattice position in the grid into a video as split screen content.
In the case where the display parameters of the plurality of devices 120 are obtained at block S202, the split-screen content corresponding to each device may be preprocessed according to the display parameters of the device at block S204. For example, the maximum resolution that can be supported by the device 120_1 is 1080P, and the maximum resolution that can be supported by the device 120_2 is 4K. The resolution of the split-screen content for device 120_1 may be adjusted to 1080P and the resolution of the split-screen content for device 120_2 may be adjusted to 4K. And so on. So that the display on the screen of each device 120 achieves the best display that the device can support.
At block S206, the server sends the split screen content to the corresponding devices according to the identification information of the multiple devices, respectively. In the example where the 9 devices 120 are arranged in a 3 × 3 matrix, since the server 110 already knows where the 9 devices are located in the 3 × 3 matrix, the split-screen content can be sent to the corresponding devices according to the identification information of the 9 devices. For example, the server knows that the device 120_1 is located at position (1, 1) of the 3 × 3 matrix, and transmits the split screen content corresponding to the upper left corner of the content to be displayed in a linked screen to the device 120_ 1. For example, the server knows that the device 120_2 is located at position (3, 3) of the 3 × 3 matrix, and transmits the split screen content corresponding to the lower right corner of the content to be displayed in a linked screen to the device 120_ 2.
In some embodiments of the present disclosure, the split-screen content is respectively transmitted to the corresponding devices at block S206, and the rule of the on-screen display may also be transmitted to a plurality of devices. The rules for the on-screen display may include, for example: the starting display time, the display duration, the number of times of cycle display, and the like.
At block S208, the server sends an indication to the plurality of devices for synchronized display of the split-screen content. In some embodiments of the present disclosure, sending an indication to a plurality of devices for synchronized display of split screen content comprises: and sending an indication for immediately displaying the split screen content to the plurality of devices at a preset time. The purpose of synchronous online display of a plurality of devices can be achieved by enabling the plurality of devices to synchronously start displaying or playing the split screen content.
Further, in addition to synchronizing the time points at which the respective devices start to display or play, embodiments of the present disclosure also consider another factor that will affect the actual synchronization effect: the decoding speed of the device. After receiving the split-screen content, each device needs to decode the split-screen content to be able to display the split-screen content on the screen of the device. The decoding speeds of different devices for pictures or videos may be different, which will cause the devices to execute decoding instructions at the same time, but due to the inconsistency of the decoding speeds, the time points at which actual pictures are displayed in the screen are also inconsistent. But under normal conditions, the decoding speed of the equipment is kept fixed, and the situation that the decoding time length of the same material fluctuates greatly every time is avoided. Therefore, for the equipment with higher decoding speed, the time delay can be increased, and the equipment with higher decoding speed delays to display the picture after the equipment with lower decoding speed completes decoding, so as to realize fine adjustment of the display precision of the synchronous on-screen. Thus, in some embodiments of the present disclosure, the server 110 may obtain information regarding the decoding speed of multiple devices. Display delays of the plurality of devices are determined according to decoding speeds of the plurality of devices. For example, it may be determined first which device has the slowest decoding speed. Then, the time point at which the device can start playing after decoding is taken as a reference time point, and corresponding display delay is set for the device with the higher decoding speed. For each device, the display delay for that device may be included in the indication for synchronously displaying the split-screen content to instruct the device to display the split-screen content at its display delay. In this case, the respective devices may be synchronized for on-screen display by instructing the respective devices to display the split-screen content according to the display delay.
Fig. 3 is an exemplary flow diagram of a method performed by a device for multiple device on-screen display according to an embodiment of the disclosure. The method 300 of fig. 3 for multiple device on-screen display performed by one of the multiple devices 120 is described below in conjunction with the example of fig. 1.
As shown in fig. 3, at block S302, a device sends identification information of the device to a server. As described above, the identification information of the device 120 may be, for example, a MAC address of the device 120, a product serial number (SN code), or the like.
At block S304, the device receives split screen content for the device from the server. As described at block 204 of fig. 2, the split-screen content is partitioned from the content to be displayed in a split-screen manner according to the number of the plurality of devices and the split-screen relationship. And will not be described in detail herein.
At block S306, the device receives an indication from the server to synchronously display the split-screen content. The indication is, for example, the indication (immediate display, or delayed display) described at block S208 of fig. 2.
At block S308, the device displays the split screen content according to the indication. In the case where the instruction is an instruction to immediately display the split-screen content, the apparatus immediately displays the split-screen content after receiving the instruction. In the case where the indication is an indication to display the split-screen content with a display delay, the device displays the split-screen content after experiencing its corresponding display delay. Such that multiple devices 120 are able to collectively display the on-screen content after experiencing their corresponding display delays. Further, the indication may be to set a time at which each device 120 starts displaying. Thus, each device 120 collectively starts displaying the split screen content at one point in time.
In the case where the instruction is to set the time at which the respective devices start displaying, there may be a problem that there is a time difference between the respective devices. Accordingly, embodiments of the present disclosure propose methods of adjusting a time at which a device displays split-screen content. Fig. 4 is a schematic diagram of a time at which an adjustment device displays split screen content according to an embodiment of the present disclosure.
As shown in fig. 4, at a time point T0, the device sends a calibration request to the server. The server receives a calibration request from the device at time point T1. Through the processing of the calibration request, the server transmits a calibration response to the calibration request to the device at a time point T2. The calibration response may include the time T1 when the server received the calibration request and the time T2 when the server sent the calibration response. The device receives the calibration response at time point T3. The device may then adjust the time at which the device displays the split screen content based on the time T0 at which the device sent the calibration request, the time T1 at which the server received the calibration request, the time T2 at which the server sent the calibration response, and the time T3 at which the device received the calibration response.
In some embodiments of the present disclosure, the time that the device displays split screen content may be adjusted to increase by Δ T. Δ T can be calculated according to the following equation:
where T0 is the time when the device sends the calibration request, T1 is the time when the server receives the calibration request, T2 is the time when the server sends the calibration response, and T3 is the time when the device receives the calibration response. Δ T may be positive, negative, or zero.
After obtaining Δ T, the device starts displaying the split content when the local time plus Δ T equals a preset start display time. Therefore, through the adjustment, the time for each device to display the split screen content is calibrated by the server time, and the synchronization can be realized.
In some embodiments of the present disclosure, the calibration operation described above may be performed at the time the device is just connected to the server. During the subsequent on-screen display, the device does not need to repeatedly communicate with the server to calculate Δ T again. Alternatively, in some embodiments of the present disclosure, the calibration operation described above may also be performed at any point in time during which the device remains connected to the server.
FIG. 5 shows a schematic block diagram of a server 500 for multiple device on-screen display according to an embodiment of the present invention. As shown in fig. 5, the apparatus 500 may include a processor 510 and a memory 520 storing computer programs. The computer program, when executed by the processor 510, causes the apparatus 500 to perform the steps of the method 200 as shown in fig. 2.
In an embodiment of the present disclosure, the processor 510 may be, for example, a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), a processor based on a multi-core processor architecture, or the like. The memory 520 may be any type of memory implemented using data storage technology including, but not limited to, random access memory, read only memory, semiconductor-based memory, flash memory, disk memory, and the like.
Further, in embodiments of the present disclosure, the apparatus 500 may also include an input device 530, for example, for receiving content to be displayed on a screen. Additionally, the apparatus 500 may also include an output device 540, for example, for outputting split screen content.
FIG. 6 shows a schematic block diagram of a device 600 for multiple device on-screen display according to an embodiment of the invention. As shown in fig. 6, the apparatus 600 may include a processor 610 and a memory 620 in which computer programs are stored. The computer program, when executed by the processor 610, causes the apparatus 600 to perform the steps of the method 300 as shown in fig. 3.
In an embodiment of the present disclosure, the processor 610 may be, for example, a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), a processor based on a multi-core processor architecture, or the like. The memory 620 may be any type of memory implemented using data storage technology including, but not limited to, random access memory, read only memory, semiconductor-based memory, flash memory, disk memory, and the like.
Further, in embodiments of the present disclosure, apparatus 600 may also include an input device 630, for example, for receiving split screen content. Additionally, apparatus 600 may also include an output device 640, for example, for displaying split-screen content.
In other embodiments of the present disclosure, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program, when executed by a processor, is capable of implementing the steps of the method as shown in fig. 2 or fig. 3.
In summary, the embodiment of the present disclosure can implement synchronous on-screen display of multiple devices. The embodiment of the disclosure does not need to arrange a master device and a slave device, and the devices are in peer-to-peer. The method for displaying the multiple devices in the screen connection mode is not limited by network quality, synchronous screen connection display of the multiple devices can be achieved under the condition of different networks or weak networks, the effect is stable, the use threshold of a user is lowered, and usability is improved.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus and methods according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As used herein and in the appended claims, the singular forms of words include the plural and vice versa, unless the context clearly dictates otherwise. Thus, when reference is made to the singular, it is generally intended to include the plural of the corresponding term. Similarly, the terms "comprising" and "including" are to be construed as being inclusive rather than exclusive. Likewise, the terms "include" and "or" should be construed as inclusive unless such an interpretation is explicitly prohibited herein. Where the term "example" is used herein, particularly when it comes after a set of terms, it is merely exemplary and illustrative and should not be considered exclusive or extensive.
Further aspects and ranges of adaptability will become apparent from the description provided herein. It should be understood that various aspects of the present application may be implemented alone or in combination with one or more other aspects. It should also be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
Several embodiments of the present disclosure have been described in detail above, but it is apparent that various modifications and variations can be made to the embodiments of the present disclosure by those skilled in the art without departing from the spirit and scope of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. A method for multiple device on-screen display, the method performed by a server connected to the multiple devices, the method comprising:
obtaining identification information, the number and the screen connection relation of the plurality of devices;
dividing the content to be displayed in a screen-connected mode into screen-divided content aiming at the corresponding equipment according to the number of the plurality of equipment and the screen-connected relation;
respectively sending the split screen content to corresponding equipment according to the identification information of the plurality of equipment; and
sending an indication to the plurality of devices for synchronous display of the split-screen content.
2. The method of claim 1, further comprising:
obtaining display parameters of the plurality of devices; and
and preprocessing the split screen content corresponding to each device according to the display parameters of the device.
3. The method of claim 1, wherein sending an indication to the plurality of devices for synchronized display of split-screen content comprises: and sending an indication for immediately displaying the split screen content to the plurality of devices at a preset time.
4. The method of claim 1, further comprising:
obtaining information on decoding speeds of the plurality of devices;
determining display delays of the plurality of devices according to decoding speeds of the plurality of devices; and
for each device, including a display delay for the device in the indication for synchronously displaying the split-screen content to instruct the device to display the split-screen content at the display delay.
5. The method of claim 1, further comprising:
receiving a calibration request from at least one device of the plurality of devices; and
in response to receiving the calibration request, sending a calibration response to the at least one device.
6. A method for a multiple device on-screen display, the method being performed by a device of the multiple devices, the multiple devices being connected to a server, the method comprising:
sending the identification information of the equipment to the server;
receiving split screen content aiming at the equipment from the server, wherein the split screen content is obtained by dividing the content to be displayed in a screen-connected mode according to the number of the plurality of equipment and the screen-connected relation;
receiving an indication from the server for synchronized display of split screen content; and
displaying the split-screen content according to the indication.
7. The method of claim 6, further comprising:
transmitting information on a decoding speed of the device to the server; and
in response to receiving a display delay determined by the server according to a decoding speed of the device, displaying the split-screen content based on the display delay.
8. The method of claim 6, further comprising:
sending a calibration request to the server;
receiving a calibration response to the calibration request from the server, the calibration response including a time at which the server received the calibration request and a time at which the server sent the calibration response; and
in response to receiving the calibration response, adjusting a time at which the device displays the split-screen content based on a time at which the device sends the calibration request, a time at which the server receives the calibration request, a time at which the server sends the calibration response, and a time at which the device receives the calibration response.
9. A server for a multi-device on-screen display, the server connected to the plurality of devices, the server comprising:
at least one processor; and
at least one memory storing a computer program;
wherein the computer program, when executed by the at least one processor, causes the server to perform the steps of the method according to any one of claims 1-5.
10. A device for on-screen display with a plurality of other devices, the device and the plurality of other devices connected to a server, the device comprising:
at least one processor; and
at least one memory storing a computer program;
wherein the computer program, when executed by the at least one processor, causes the apparatus to perform the steps of the method according to any one of claims 6-8.
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