WO2019233314A1 - 一种电视墙图像回显方法、服务器件及电视墙系统 - Google Patents
一种电视墙图像回显方法、服务器件及电视墙系统 Download PDFInfo
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- WO2019233314A1 WO2019233314A1 PCT/CN2019/088808 CN2019088808W WO2019233314A1 WO 2019233314 A1 WO2019233314 A1 WO 2019233314A1 CN 2019088808 W CN2019088808 W CN 2019088808W WO 2019233314 A1 WO2019233314 A1 WO 2019233314A1
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Definitions
- the present application relates to the technical field of video surveillance equipment, and in particular, to a video wall image display method, a service device, and a video wall system.
- the TV wall In the field of video surveillance, the TV wall has been used more and more.
- the TV wall is composed of multiple displays spliced together, such as LED (Light Emitting Diode) display or LCD (Liquid Crystal Display) display. Wait.
- Each monitor on the TV wall can display a single video image separately, or can be combined through the monitors on the TV wall to display a video image. Therefore, the TV wall can support various functions such as window roaming, split screen and zoom. Make it easier for users to view multiple video images.
- Echo refers to the video image displayed in the TV wall, which can be transmitted to other terminal devices, such as computers and other devices.
- the video images displayed on the TV wall can be synchronized.
- the echo function the video images displayed on the TV wall can be viewed through the terminal device, the video images displayed on the TV wall can be better controlled, and the needs of various services can be met.
- a TV wall system composed of multiple TV walls has been produced, and multiple TV walls can be distributed in different locations or in the same location.
- multiple TV walls can be distributed in multiple monitoring centers, and each monitoring center can individually control a TV wall to display video images.
- unified scheduling and control of multiple TV walls becomes more and more important. Among them, the most important thing is to realize the display function in a TV wall system composed of multiple TV walls.
- the video images displayed on the single video wall can usually only be displayed through the control device of the single video wall.
- the control equipment of a single TV wall cannot control multiple distributed TV walls, for example, the FPGA (Field-Programmable Gate Array) controller connected to the TV wall will already be spliced. Yes, the video image being output to the TV wall is synchronously sent to the terminal device, thereby realizing the echo function.
- the existing control equipment of a single TV wall cannot be applied to a TV wall system composed of multiple TV walls, and unified scheduling and control of multiple TV walls cannot be achieved, and thus the display function of multiple TV walls cannot be achieved. Therefore, for multiple TV walls, how to implement the echo function has become an urgent problem in the industry.
- the purpose of the embodiments of the present application is to provide a video wall image display method, a service device, and a video wall system, so as to implement the display function in a video wall system composed of multiple video walls.
- the specific technical solutions are as follows:
- An embodiment of the present application provides a video wall image echoing method, which is applied to a service device, the service device is connected to multiple output devices, the multiple output devices are respectively connected to multiple TV walls, and the service device is used for For acquiring video information output by an output device to a video wall, the video wall image display method includes:
- the echo instruction includes an identifier of a target video wall to be echoed
- the sending a control instruction to the target output devices connected to the target TV wall includes:
- the receiving the multiple channels of video information sent by the target output device separately includes:
- the combining the multiple pieces of video information into one piece of echo information includes:
- the outputting the echo information includes:
- the echoed image is output.
- the method before the sending a control instruction to a target output device connected to the target video wall, the method further includes:
- the information is encoded to form the multiple encoded video bitstreams, where the preset image size is the size of an image formed by decoding one video bitstream.
- the method further includes:
- the stitching the images formed by the decoded video streams to form an echoed image includes:
- an image formed by decoding each video stream corresponding to each output port is stitched at the corresponding position to form the echoed image.
- the method before the sending a control instruction to a target output device connected to the target video wall, the method further includes:
- the outputting the echo image includes:
- An embodiment of the present application provides a video wall image echoing method, which is applied to an output device, the output device is connected to the TV wall, the output device has multiple output ports, and each of the output ports is connected to the TV wall One of the display units is connected, and a channel of video information is output to the display unit.
- the video wall image display method includes:
- a control instruction sent by a service device is received, multiple video information output from each of the output ports is sent to the service device, and the service device is configured to obtain a video output by the output device to the TV wall. information.
- the sending the multi-channel video information output by each of the output ports to the service device includes:
- the encoding of multiple video information output by each of the output ports to form multiple video code streams includes: :
- the encoding multiple video information output from each of the output ports to form multiple video code streams includes:
- An embodiment of the present application further provides a service device, the service device is connected to multiple output devices, the multiple output devices are respectively connected to multiple TV walls, and the service device is configured to obtain output devices to output to the TV wall Video information, the service device includes:
- An obtaining module configured to obtain an echo instruction, where the echo instruction includes an identifier of a target video wall to be echoed;
- a synchronous sending module configured to send a control instruction to a target output device connected to the target TV wall according to the identifier of the target TV wall to be echoed, where the target output device has multiple output ports, each of which The output port is connected to a display unit in the target TV wall, and outputs one channel of video information to the display unit.
- the control instruction is used to instruct the target output device to send multiple video information of each output port to The service device;
- a codec module configured to separately receive the multiple channels of video information sent by the target output device; combine the multiple channels of video information into one channel of echo information;
- An output module configured to output the echo information.
- the synchronous sending module is specifically configured to:
- control instruction is sent to the multiple target output devices connected to the target television wall synchronously.
- the codec module is specifically configured to:
- the output module is specifically configured to output the echoed image.
- the service device further includes: a computing module
- the calculation module is specifically configured to determine, for each output port of the target output device, before the synchronization sending module sends a control instruction to the target output device connected to the target television wall.
- the position of the display unit in the target television wall using the position as the position corresponding to the output port; sending the position corresponding to each of the output ports, and the preset image size to the target output device, so that
- the target output device encodes video information of each of the output ports according to the position and the preset image size to form the multiple encoded video bitstreams, where the preset image size is one way Describe the size of the image formed by the video bitstream.
- the service device further includes: a size calculation module
- the size calculation module is specifically configured to divide the width resolution and the height resolution of the preset echo image resolution by the number of horizontal display units and the vertical display units of the target television wall, respectively. Quantity to obtain the preset image size.
- the codec module is specifically configured to:
- the images formed by the video streams corresponding to the output ports are spliced at the corresponding positions to form the echoed image.
- the synchronous sending module is further configured to:
- the synchronization sending module Before the synchronization sending module sends a control instruction to a target output device connected to the target television wall, sending a timestamp to the target output device, where the timestamp is used to make the multi- Video stream with synchronized time stamp.
- the output module is specifically configured to:
- An embodiment of the present application further provides an output device, the output device is connected to a video wall, the output device has multiple output ports, each of the output ports is connected to a display unit in the video wall, and Output one channel of video information to the display unit, the output device includes:
- An output module configured to output the video information to each display unit in the TV wall through each of the output ports;
- a codec module configured to: if a control instruction sent by a service device is received, send multiple video information output from each of the output ports to the service device, and the service device is configured to obtain the output device sends the The video information output by the TV wall is described.
- the codec module is specifically configured to:
- the codec module is specifically configured to:
- the codec module is specifically configured to:
- An embodiment of the present application further provides a TV wall system, which includes a service device, multiple output devices, multiple TV walls, and terminal equipment.
- the service device is used to implement any of the foregoing video wall image display methods applied to the service device;
- Each output device of the plurality of output devices is configured to implement any one of the foregoing video wall image display methods applied to an output device;
- the service device is respectively connected to the plurality of output devices through a network
- the multiple output devices are respectively connected to the multiple television walls, each output device has multiple output ports, and each of the output ports is connected to a display unit in the television wall and outputs to the display unit. Video information all the way;
- the terminal device is connected to the service device, and is configured to obtain echo information output by the service device.
- An embodiment of the present application further provides a service device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;
- the processor is configured to implement any one of the foregoing steps of the video wall image echoing method applied to the service device when the program stored in the memory is executed.
- An embodiment of the present application further provides a computer-readable storage medium.
- a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any of the foregoing television wall images applied to a service device is implemented. Echo method.
- An embodiment of the present application further provides a computer program, which is used to execute any one of the above-mentioned TV wall image echoing method steps applied to a service device when running.
- An embodiment of the present application provides a television wall image echoing method, a service device, and a television wall system.
- the service device can obtain an echo instruction, determine a target television wall according to the echo instruction, and output the target television wall to the target of the target television wall.
- the device sends control instructions, so that the target output device sends the video information output to each display unit in the target TV wall to the service device.
- the service device combines multiple video information into one echo information and outputs it, thereby achieving the target TV wall. Echo of the video wall image.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple In the TV wall system of each TV wall, the problem that the TV wall system composed of multiple TV walls cannot implement the display function in the prior art is solved.
- FIG. 1 is a schematic diagram of a video wall image echo provided by an embodiment of the present application
- FIG. 2 is a flowchart of a method for displaying a video wall image according to an embodiment of the present application
- 3a is a schematic diagram of a target video wall provided by an embodiment of the present application.
- 3b is a schematic diagram of a mapping relationship between a target television wall and an output port according to an embodiment of the present application
- FIG. 4 is a flowchart of interaction between a service device and a target output device according to an embodiment of the present application
- FIG. 5 is another flowchart of a video wall image echoing method provided by an embodiment of the present application.
- FIG. 6 is a structural diagram of a service device according to an embodiment of the present application.
- FIG. 7 is a structural diagram of an output device according to an embodiment of the present application.
- FIG. 8 is a structural diagram of a video wall system according to an embodiment of the present application.
- the television wall image echoing method provided in the embodiment of the present application can be applied to a television wall system composed of a service device, an output device, and a plurality of television walls.
- the output device is connected to the TV wall.
- the TV wall can be composed of multiple TV walls located in different positions or at the same position. Each TV wall is connected to at least one output device.
- the output device can obtain video information and pass the video information through.
- the output port outputs to the display unit in the TV wall, and the corresponding image is displayed in the display unit.
- the display unit can be an LED display or an LCD display and other equipment.
- the server and output devices can be chips, motherboards, processors, and other devices with functions such as video encoding, decoding, and code combining.
- the server device is used to obtain the video information output by the output device to the TV wall.
- the service device can control the output device, so that the output device will output the video information to the TV wall and simultaneously send it to the server. Pieces.
- the server then sends the received video information to the terminal to implement the echo function of the TV wall.
- the TV wall 101 is composed of 9 display units, A1 to A9 are images displayed in the 9 display units, and the images in the 9 display units collectively constitute the TV wall image. As shown in FIG. To realize the echo function, the video wall image can be displayed in the terminal device 102.
- the output devices of multiple TV walls can be connected to the server through cables, data lines, and networks.
- the network can include local area networks and the Internet.
- the server can control a plurality of output devices respectively, and obtain video information of each output device separately, thereby realizing the echo function of multiple TV walls.
- the output devices of multiple TV walls can also encode video information according to various encoding methods, and decode encoded video information according to various decoding methods.
- FIG. 2 is a flowchart of a video wall image echoing method provided by an embodiment of the present application. Applied to service devices, including:
- Step 201 Obtain an echo instruction, and the echo instruction includes the identifier of the target video wall to be echoed.
- the server can be a hardware device with audio and video data processing capabilities, which can include a codec chip, a control chip, a network port, and corresponding auxiliary components and circuits.
- the codec chip and the control chip may be a chip or a controller capable of implementing data processing, for example, a CPU (Central Processing Unit, Central Processing Unit), a GPU (Graphic Processing Unit, Image Processor), FPGA, or the like.
- the server can obtain the echo instruction in various ways.
- a terminal device that communicates with the service device, such as a computer, a mobile phone, or a tablet computer, sends the echo instruction to the service device, and the service device can obtain the echo instruction.
- the terminal device can establish a communication connection with the service device through a network, thereby eliminating the limitation of the transmission distance, which is more conducive to the method for displaying the video wall image provided in the embodiment of the present application in a video wall system composed of multiple video walls. application.
- an echo instruction may be input directly on the service device, or an echo instruction may be automatically triggered by a program preset on the service device according to a certain rule.
- the display instruction needs to include the identification of the target television wall to be echoed, for specifying the target television wall to be echoed from the multiple television walls.
- the identification of the target TV wall may be information such as the number and name of the target TV wall or the IP address of the target TV wall in the network. As long as it can be used to distinguish the target TV wall from multiple TV walls, it can be used as the identification of the target TV wall.
- Step 202 Send a control instruction to the target output board connected to the target TV wall according to the identifier of the target TV wall to be echoed, that is, to the target connected to the target TV wall according to the identifier of the target TV wall to be echoed.
- the output device sends a control instruction.
- the target output device has multiple output ports, each output port is connected to a display unit in the target TV wall, and outputs one channel of video information to the display unit.
- the control instruction is used to instruct the target output device to output multiple videos of each output port.
- the information is sent to the service device.
- the server software After the server software obtains the echo instruction, it can determine the target television wall from multiple television walls according to the identifier of the target television wall in the echo instruction. Then, a control instruction may be sent to a target output device connected to the target video wall.
- the target output device may have multiple output ports, but since the number of display units in the target video wall may be large, the number of output ports on the target output device may be small. Therefore, in order to make each display unit in the target TV wall have video information input, the target TV wall can be connected with multiple target output devices, that is, each output port of each target output device in the multiple target output devices is separately It is connected to each display unit in the target TV wall and outputs one channel of video information to each display unit.
- step 202 sending a control instruction to the target output board connected to the target TV wall may include:
- the target output device After the target output device receives the control instruction, it can continue to output the video information to each display unit through each output port, and at the same time, send the video information of each output port to the service device.
- a target output device has multiple output ports, so multiple video information can be sent to the service device. For example, if the target output device has 3 output ports, the target output device can send 3 video information to the service device.
- control instruction may instruct the target output device to synchronously send video information of each output port to the service device to ensure the consistency of the video information.
- the multiple target output devices respectively send respective multi-channel video information to the service device.
- each target output device can also send multiple channels of video information synchronously.
- Step 203 Receive multiple channels of video information sent by the target output board, that is, separately receive multiple channels of video information sent by the target output device.
- the server device can receive the multiple video information sent by the target output device respectively. Specifically, the service device can receive the multiple video information through multiple receiving channels of the codec chip.
- the service device can record the number of channels of the multiple video information before receiving the multiple channels of video information sent by the target output device. In this way, before receiving the multiple channels of video information, it can pre-configure the same number of receiving channels as the number To receive multiple video messages.
- Each channel of video information is received through a receiving channel, and the received channel of video information can be subsequently processed through the receiving channel.
- the service device and the output device can communicate with each other through a local area network or the Internet. Therefore, the service device sends various information and instructions, including control instructions, to the target output device. Can be sent over the network. Similarly, the target output device can also send various types of information, including multi-channel video information, to the service device via the network. The service device receives the multi-channel video information sent by the target output device through the network port, and then Multi-channel video information is transmitted to multiple receiving channels of the codec chip.
- Step 204 Combine multiple channels of video information into one channel of echo information.
- the server After the server receives multiple pieces of video information, because the pieces of video information are independent video images, they are not integrated together, and cannot directly output each piece of video information synchronously, and the terminal device receiving the video information generally also There is only one input port, and multiple video information cannot be received at the same time.
- the service device needs to combine multiple channels of video information to form one channel of echo information.
- the echo information contains the images of the video information of each channel, that is, the images of the video information of each channel are spliced to restore the structural style of the video wall image displayed in the target video wall.
- step 205 echo information is output.
- the echo information can be output to the terminal device.
- the terminal device can be a computer, mobile phone, tablet computer, or other display device.
- the service device may output the echoed information to a device such as a display through a DP (DisplayPort, high-definition audio and video stream transmission interface) interface of the service device itself.
- a device such as a display through a DP (DisplayPort, high-definition audio and video stream transmission interface) interface of the service device itself.
- the service device can also output the echoed information to terminal devices such as computers, mobile phones, and tablet computers through cables, data lines, and networks.
- the terminal device After the terminal device obtains the echo information, it can display the image in the echo information, which is the echo image of the video wall image of the target TV wall, and the content included in the echo image and the video wall image of the target TV wall Exactly.
- the video information sent by the target output device of the target TV wall to each display unit will be changed.
- the operation can be window roaming, zooming, split screen, source replacement, and scene switching.
- the multiple video information sent by the target output device to the service device also changes accordingly.
- the echoed image will also change synchronously with the TV wall image in the target TV wall, so that the user can view the TV wall image displayed in real time in the target TV wall through the terminal device.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will display to each of the target TV wall.
- the video information output by the unit is sent to the service device.
- the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple In the video wall system of each video wall, the problem that the video wall system with multiple video walls cannot implement the display function in the prior art is solved.
- the target output device can encode the multiple channels of video information separately, and then send the encoded video information to the service device.
- the video information may be encoded by using an encoding method such as H.264 or H.265.
- an encoding method such as H.264 or H.265.
- multiple video code streams can be obtained. Then multiple video streams are sent to the service device synchronously.
- receiving multiple channels of video information sent by the target output board may include:
- the target output device encodes multiple channels of video information to obtain multiple channels of video streams, and sends the multiple channels of video streams to the service device synchronously
- the corresponding service device receives the multiple channels of video code streams. Similar to the process in the above embodiment, the service device can receive multiple video code streams through multiple receiving channels of the codec chip on board.
- step 204 combining multiple channels of video information into one channel of echo information, may include:
- Step a Decode the multiple video code streams separately.
- the service device After the service device receives multiple video code streams, it can decode the multiple video code streams separately. Specifically, the process of decoding the multi-channel video code stream by the service device can be implemented by the codec chip. Multiple receiving channels of the codec chip receiving the video stream can be used as decoding channels to decode the received multiple video streams.
- step b the images formed by the decoded video streams are spliced to form an echoed image.
- the decoded video streams are composed of images that can be displayed.
- the multiple video code streams sent by the target output device are continuous data.
- the server can decode the multiple video streams while receiving the multiple video streams, and then decode the images obtained from the decoded video streams according to the original structural position of the video wall image in the target television wall. Stitching to form a real-time echo image.
- the above process is a dynamic process, which is performed in real time and synchronously, so that the echo image and the video wall image in the target video wall remain synchronized and consistent.
- the service device stitching the images corresponding to the video streams of each channel may also be implemented by a codec chip mounted on the service device.
- a codec channel can be pre-configured in the codec chip, and the codec channel can be used to perform codec operations on multiple video streams that are decoded by multiple decoding channels, thereby splicing the images corresponding to each video stream. To form an echoed image.
- step 205 outputting echo information includes outputting an echo image.
- the server can output the obtained echo image in real time.
- the service device can output the echo image to the display device through the DP interface in real time, so that the display device can display the echo image in real time.
- the user can know the content included in the TV wall image displayed in the target TV wall in real time.
- the service device may output the echoed image obtained in real time to a terminal device such as a computer or a mobile phone. Since the terminal device and the service device may not be connected through a video cable, the echoed image cannot be recognized.
- terminal devices such as mobile phones and computers can be connected to service devices through a local area network or the Internet.
- the server needs to output the echoed image to the mobile terminal via the network. Therefore, in the embodiment of the present application, the above step of outputting an echoed image may include:
- the first step is to encode the echo image to form an echo code stream.
- the echo code stream is output.
- the encoding method can be any existing encoding method, such as H.264 and H.265.
- the server can encode the real-time echo image to get the real-time echo code stream.
- the echo code stream is then transmitted to terminal devices such as computers and mobile phones through networks, data lines, and cables.
- terminal devices such as computers and mobile phones through networks, data lines, and cables.
- the terminal device After the terminal device obtains the echo code stream, it decodes the echo code stream to obtain an echo image that can be directly displayed.
- an echoed code stream is formed, so that the service device can output the echoed code stream to the terminal device in a manner such that the image format data cannot be transmitted through the network.
- the terminal device can obtain the echoed image of the target TV wall through a method such as the network that cannot transmit data in the image format, which is more conducive to applying the TV wall image provided in the embodiment of the present application to a TV wall system composed of multiple TV walls. Echo method.
- the method before sending a control instruction to a target output board connected to the target television wall in step 202, the method may further include:
- Step A For each output port of the target output device, determine the relative position of the display unit connected to the output port in the target TV wall, and use the relative position as the relative position corresponding to the output port.
- Each output port in the target output device is connected to a display unit in the target TV wall, and the display units in the target TV wall are arranged according to a certain rule to form a target TV wall. Therefore, the display unit connected to each output port has its fixed position in the target TV wall. That is, the image formed by the video information output from each output port to the display unit also has its fixed position in the target TV wall.
- each output port is The corresponding position in the target video wall.
- FIG. 3a is a schematic diagram of a target TV wall. It can be seen from FIG. 3a that the target TV wall has 9 display units. If one target output device has two output ports, there are at least five target output devices connected to the target TV wall, of which all two output ports of the four target output devices are connected to the display unit and the other one Only one output port is required in the target output device to connect to the display unit.
- output port 1-1 represents the first output port of the first target output device
- output port 1-2 represents the second output port of the first target output device
- output port 2-1 represents the output port of the second target output device.
- First output port, output port 2-2 represents the second output port of the second target output device, and so on, output port 3-1 represents the first output port of the third target output device, and output port 3-2 represents the first The second output port of the three target output device, output port 4-1 indicates the first output port of the fourth target output device, output port 4-2 indicates the second output port of the fourth target output device, and output port 5-1 indicates The first output port of the fifth target output device.
- Fig. 3a and Fig. 3b the position of the display unit connected to each output port in the target TV wall can be determined, thereby determining the corresponding position of each output port.
- Step B Send the corresponding position of each output port and the preset image size to the target output device, so that the target output device encodes the video information of each output port according to the corresponding position and preset image size of each output port.
- the server device determines the position corresponding to each output port of the target output device.
- the corresponding position and preset image size of each output port can be sent to the target output device.
- the corresponding position of each output port of each target output device can be sent to each target separately. Output device.
- the image size of each channel of video information is adapted to the size and resolution of the display unit.
- the size and resolution of the echo image finally obtained by the service device will still be compatible with the size and resolution of the display unit in the target TV wall.
- the service device needs to scale the stitched echoed image to fit the size and resolution of the screen in the terminal device.
- the service device can be preset with a preset image size, which is an image suitable for the size and resolution of the screen of the terminal device. size.
- a preset image size which is an image suitable for the size and resolution of the screen of the terminal device. size.
- the target output device After sending the corresponding position and preset image size of each output port to the target output device, the target output device can encode the video information of each output port according to the corresponding position and preset image size of each output port, so that The encoded video stream is adapted to the corresponding position of the output port and the preset image size, so that the service device can more easily and quickly process the decoding and splicing of multiple video streams, and improve the efficiency of the service device .
- the method may further include: presetting the widthwise resolution and the heightwise resolution of the preset echoed image resolution, Divide by the number of horizontal display units and the number of vertical display units in the target TV wall to obtain a preset image size.
- the echo image formed by the server needs to be displayed on the terminal device.
- the terminal device that needs to be displayed in the final echo image can be determined in advance. For example, Sending an echo command to the service device through a computer can indicate that the echo image needs to be displayed on the computer. Therefore, the service device can determine the resolution of the echo image to be displayed by the terminal device, and this resolution can be used as the preset echo image resolution. For example, when the terminal device sends an echo command to the service device, it can simultaneously select the resolution of the final echo image and send the resolution to the service device. The service device can use the resolution as the preset echo image resolution. .
- the preset echo image resolution includes the resolution in the width direction and the resolution in the height direction. For example, if the preset echo image resolution is 1920 ⁇ 1080, the resolution in the width direction is 1920 and the resolution in the height direction is 1080. .
- the number of horizontal display units and the number of vertical display units in the target TV wall are known parameters. For example, as shown in FIG. 3a, the number of horizontal display units and the number of vertical display units are both three.
- the display in the terminal device can be determined.
- the resolution of the image formed by decoding each video stream is used as the preset image size.
- (1920/3) ⁇ (1080/3) 640 ⁇ 360.
- the final 640 ⁇ 360 can be used as the preset image size. In the calculation process, if the situation is not divisible, you can fill the remainder into the last column or row, or you can directly round.
- step b the decoded video codes of each channel
- the images formed by the stream are spliced to form an echoed image, which can include:
- the image formed by decoding each video stream corresponding to each output port is spliced at the corresponding position to form an echoed image.
- a video code stream After the video information of each output port of the target output device is encoded, a video code stream can be formed. After decoding the video code stream, corresponding images can be obtained.
- stitching can be performed according to the position in the TV wall image corresponding to the image.
- the position corresponding to each output port can indicate the position of the display unit connected to the output port in the target TV wall, or the position of the image corresponding to the video information of the output port in the target TV wall. Therefore, the image obtained by decoding the video stream encoded by the video information of the output port must also have a corresponding position in the echo image.
- the output port 1-1 in FIG. 3b corresponds to the first display unit in the upper left corner of the target TV wall, then the corresponding position of the output port 1-1 is the first in the upper left corner
- the position corresponding to the display unit, then the image obtained by decoding the video stream encoded by the video information of the output port 1-1, and the position in the echoed image is the upper left corner position in the echoed image.
- the decoded images of each video stream corresponding to each output port are stitched according to the corresponding positions of each output port, and the obtained echo image can be maintained with the distribution position of each channel image in the TV wall image. Consistent, so that users can see echoed images consistent with the video wall image content.
- stitching is performed through the corresponding positions of the output ports, which simplifies the processing process of image stitching by the service device and further improves the efficiency of the service device.
- the method before sending a control instruction to a target output board connected to the target television wall in step 202, the method further includes:
- Step C Send a timestamp to the target output device.
- the timestamp is used to enable the multiple video code streams sent by the target output device to have synchronized timestamps.
- the server can also send a time stamp to the target output device before sending the control instruction to the target output device.
- the time stamp can be used to instruct the target output device to determine that the sent multiple video code streams have synchronized time stamps, thereby ensuring multiple Time consistency of video streams.
- consistency among multiple target output devices can also be guaranteed.
- the target output device After the target output device receives the timestamp, it can encode the video of each output port according to the timestamp, and add a synchronized timestamp to the encoded multiple video stream. Furthermore, when the target output device receives the control instruction, it can start to send multiple video code streams to the service device. After the service device decodes the multiple video code streams, it can synchronize and splice according to the time stamps in them. Output or display the image formed by each decoded video stream.
- Step 401 The service board sends a timestamp to the target output board, that is, the service device sends a timestamp to the target output device.
- the server can send the timestamp to the target output device so that the target output device is in the synchronization lock state.
- the synchronization lock state means that the target output device keeps the time of the video information of each output port consistent. When there are multiple target output devices, the time of the video information of each output port of the multiple target output devices can be kept consistent.
- Step 402 The target output board sends confirmation information to the service board, that is, the target output device sends confirmation information to the service device.
- the target output device After the target output device obtains the time stamp, it can send a confirmation message to the service device, which is used to inform the service device that the target output device is in the synchronization lock state.
- Step 403 The service board sends a control instruction to the target output board, that is, the service device sends a control instruction to the target output device.
- Step 404 The target output board sends multiple video code streams to the service board, that is, the target output device sends multiple video code streams to the service device.
- the target output device After receiving the control instruction, the target output device encodes the video information of each output port synchronously, adds a synchronized time stamp to the video code stream, and then sends it to the service device synchronously.
- the target output device by sending a timestamp to the target output device, it is further ensured that the target output device can synchronously encode the video information of each output port and send it synchronously.
- the temporal consistency of multiple video streams is ensured, thereby ensuring the temporal consistency of the images included in the final echoed image.
- FIG. 5 is another flowchart of a video wall image echoing method provided by an embodiment of the present application, which is applied to an output device and includes:
- Step 501 Obtain video information.
- the video information received by the output device can be one or more. There are many ways for the output device to obtain the video information. For example, the network device transmits the video code stream transmitted by the network camera, and then decodes the video code stream to obtain video information.
- Video cables and video sub-interfaces such as DVI (Digital Visual Interface), VGA (Video Graphics Array, Video Publishing Interface), HDMI (High Definition Multimedia Interface), and other interfaces. ) To access the corresponding video information.
- DVI Digital Visual Interface
- VGA Video Graphics Array, Video Publishing Interface
- HDMI High Definition Multimedia Interface
- Step 502 Output the video information to each display unit in the TV wall through each output port.
- the output device After the output device receives the video information, it can be transmitted to the display unit connected to each output port through each output port, and each display unit can display the corresponding image.
- step 503 if the control instruction sent by the service board is received, the multiple video information output by each output port is sent to the service board, that is, if the control instruction sent by the service device is received, the multi-channel video information output by each output port is sent.
- the video information is sent to the service device.
- the server is used to obtain the video information output by the output device to the TV wall.
- the output device When the output device receives the control instruction sent by the service device, it will output each channel of video information to the TV wall, continue to output to each display unit in the TV wall, and simultaneously send the video information to the service device.
- the manner in which the multiple video information output from each output port is sent to the service device in step 503 may include:
- Step a1 encode multiple video information output from each output port to form multiple video code streams.
- Step b1 Send multiple video code streams to the service device.
- the output device can encode multiple video information to form multiple video code streams; then the encoded video code stream is sent to the server Files to send.
- step a1 multiplexing the output of each output port Video information is encoded to form multiple video code streams, which can include:
- the video information of each output port is encoded to form multiple video code streams.
- the output device encodes multiple video information according to the corresponding position of each output port and the preset image size, so that the images formed by the multiple video code streams can be stitched by the service device to become a size suitable for terminal devices.
- the displayed echo image does not need to be scaled by the service device, thereby improving the efficiency of the service device.
- step a1 if a timestamp sent by the service device is received, step a1, the multi-channel video information output from each output port is encoded to form a multi-channel video
- the code stream can include:
- Multi-channel video information output from each output port is synchronously encoded to form multiple video code streams, and a synchronized time stamp is added to the multiple video code streams.
- the output device receives the timestamp sent by the service device, and can synchronously encode the video information of each output port according to the timestamp, ensuring the consistency of the time of multiple video streams.
- a time stamp can be added to the video code stream, so that the service device can synchronize the image according to the time stamp to obtain an echo image, and display or output the echo image synchronously.
- FIG. 6 is a structural diagram of a service device according to an embodiment of the present application.
- the service device is connected to multiple output devices, and the multiple output devices are respectively connected to multiple TV walls.
- the service device is used to obtain video information output by the output device to the TV wall.
- the service device includes:
- An obtaining module 601 configured to obtain an echo instruction, where the echo instruction includes an identifier of a target video wall to be echoed;
- a synchronous sending module 602 is configured to send a control instruction to a target output device connected to the target TV wall according to an identifier of the target TV wall to be echoed.
- the target output device has multiple output ports, and each The output port is connected to a display unit in the target TV wall, and outputs one channel of video information to the display unit.
- the control instruction is used to instruct the target output device to send multiple video information of each output port.
- a codec module 603, configured to separately receive the multiple channels of video information sent by the target output device; combine the multiple channels of video information into one channel of echo information;
- An output module 604 is configured to output the echo information.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will display to each of the target TV wall.
- the video information output by the unit is sent to the service device.
- the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple
- the distributed television wall system of each television wall solves the problem that in the prior art, a television wall system composed of multiple television walls cannot implement the display function.
- the synchronization sending module 602 is specifically configured to:
- control instruction is sent to the multiple target output devices connected to the target television wall synchronously.
- the codec module 603 is specifically configured to:
- the output module 604 is specifically configured to output the echoed image.
- the service device further includes: a computing module
- the calculation module is specifically configured to determine, for each output port of the target output device, before the synchronous sending module 602 sends a control instruction to the target output device connected to the target television wall.
- the position of the connected display unit in the target TV wall using the position as the position corresponding to the output port; sending the position corresponding to each of the output ports, and a preset image size to the target output device, so that
- the target output device encodes video information of each of the output ports according to the position and the preset image size to form the multiple encoded video bitstreams, where the preset image size is one A size of an image formed by the video bitstream.
- the service device further includes: a size calculation module
- the size calculation module is specifically configured to divide the width resolution and the height resolution of the preset echo image resolution by the number of horizontal display units and the vertical display units of the target television wall, respectively. Quantity to obtain the preset image size.
- the codec module 603 is specifically configured to:
- the images formed by the video streams corresponding to the output ports are spliced at the corresponding positions to form the echoed image.
- the synchronization sending module 602 is further configured to:
- a time stamp is sent to the target output device, and the time stamp is used to enable the target output device to send the time stamp to the target output device.
- the output module 604 is specifically configured to:
- FIG. 7 is a structural diagram of an output device according to an embodiment of the present application.
- the output device is connected to a TV wall, the output device has multiple output ports, each of the output ports is connected to a display unit in the TV wall, and outputs one channel of video information to the display unit, the output
- the device includes:
- a codec module 703 is configured to: if a control instruction sent by a service device is received, send multiple video information output from each of the output ports to the service device, and the service device is used to obtain the output device direction Video information output by the television wall.
- the output device can obtain video information, and output the video information to each display unit in the TV wall through each output port. If a control instruction sent by the service device is received, each output port is output.
- the multi-channel video information is sent to the service device.
- the service device obtains the video information output from the output device to the TV wall.
- the service device combines the multiple video information into a single echo information and outputs it, thereby realizing the video wall image in the target TV wall , Solves the problem that in the prior art, a video wall system composed of multiple video walls cannot implement the display function.
- the codec module 703 is specifically configured to:
- the codec module 703 is specifically configured to:
- the codec module 703 is specifically configured to:
- FIG. 8 is a structural diagram of a video wall system according to an embodiment of the present application.
- the TV wall system may include a service board, multiple output boards, multiple TV walls, and terminal equipment.
- the service board is also a service device, and multiple output boards are multiple output devices.
- Serverware is used to implement any of the above-mentioned video wall image display methods applied to service devices.
- Each of the plurality of output devices is used to implement any of the foregoing video wall image echoing methods applied to an output device.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will send the target TV wall
- the video information output from each display unit in the system is sent to the service device, and the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple
- the distributed television wall system of each television wall solves the problem that in the prior art, a television wall system composed of multiple television walls cannot implement the display function.
- the server is connected to multiple output devices through a network.
- the network may include a local area network and the Internet.
- the service device and each output device may be separately connected to the switch, and the service device is connected to each output device through the switch.
- each output device has multiple output ports, each output port is connected to a display unit in the TV wall, and outputs one channel of video information to the display unit.
- a video wall can be connected with multiple output devices.
- the output board 1-1 in FIG. 8 represents the first output device connected to the TV wall 1, and the output boards 1-n represent connection to the TV wall 1.
- the output board 2-1 represents the first output device connected to the video wall 2 and the output board 2-n represents the Nth output device connected to the video wall 2.
- the output board 3-1 represents the first output device connected to the TV wall 3, and the output board 3-n represents the Nth output device connected to the TV wall 3.
- the terminal device is connected to the service device, and is used to obtain the echo information output by the service device.
- the terminal equipment can also be connected to the service device through the switch using the network.
- an echo instruction is sent to the service device through the network, and an echo code stream sent by the service device is received.
- the terminal device can obtain the echo code stream of the TV wall image displayed in the specified target TV wall through the service device, and after decoding, the real-time echo image can be seen. Therefore, the echo function is implemented in a TV wall system composed of multiple TV walls, so that users can more conveniently view the TV wall images displayed in each TV wall through the terminal device.
- An embodiment of the present application further provides a service device including a processor, a communication interface, a memory, and a communication bus.
- the processor, the communication interface, and the memory complete communication with each other through the communication bus.
- a processor is configured to implement any of the foregoing video wall image echoing methods applied to a service device when executing a program stored in a memory.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will display to each of the target TV wall.
- the video information output by the unit is sent to the service device.
- the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple
- the distributed television wall system of each television wall solves the problem that in the prior art, a television wall system composed of multiple television walls cannot implement the display function.
- the communication bus mentioned in the service device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc.
- PCI Peripheral Component Interconnect
- EISA Extended Industry Standard Architecture
- the communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, the figure only uses a thick line, but it does not mean that there is only one bus or one type of bus.
- the communication interface is used for communication between the service device and other devices.
- the memory may include random access memory (Random Access Memory, RAM for short), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
- non-volatile memory such as at least one disk memory.
- the memory may also be at least one storage device located far from the foregoing processor.
- the above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), and the like; and a digital signal processor (DSP) Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
- CPU central processing unit
- NP network processor
- DSP digital signal processor
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, any one of the televisions applied to a service device is implemented. Wall image echo method.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will display to each of the target TV wall.
- the video information output by the unit is sent to the service device.
- the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple
- the distributed television wall system of each television wall solves the problem that in the prior art, a television wall system composed of multiple television walls cannot implement the display function.
- a computer program is also provided.
- the computer program is executed by a processor, any one of the foregoing video wall image echoing methods applied to a service device is implemented.
- the target TV wall is determined according to the echo instruction, and the control instruction is sent to the target output device of the target TV wall, so that the target output device will display to each of the target TV wall.
- the video information output by the unit is sent to the service device.
- the service device combines multiple video information into one echo information and outputs it, so as to realize the echo of the video wall image in the target video wall.
- the service device can obtain the echoed image of the target television wall from multiple television walls according to the echo instruction, so that the television wall image echoing method provided in the embodiment of the present application can be applied to a method having multiple
- the distributed television wall system of each television wall solves the problem that in the prior art, a television wall system composed of multiple television walls cannot implement the display function.
- An embodiment of the present application further provides an output device including a processor, a communication interface, a memory, and a communication bus.
- the processor, the communication interface, and the memory complete communication with each other through the communication bus.
- the processor is configured to implement any of the foregoing video wall image echoing methods applied to an output device when executing a program stored in a memory.
- the output device can obtain video information and output the video information to each display unit in the TV wall through each output port. If a control instruction sent by the service device is received, the output of each output port is The video device sends the video information to the service device. The service device obtains the video information output by the output device to the TV wall. The service device combines multiple video information into a single line of echo information and outputs it, so as to realize the return of the video wall image in the target TV wall. It solves the problem that in the prior art, a TV wall system composed of multiple TV walls cannot implement the display function.
- the communication bus mentioned in the above output device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc.
- PCI Peripheral Component Interconnect
- EISA Extended Industry Standard Architecture
- the communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, the figure only uses a thick line, but it does not mean that there is only one bus or one type of bus.
- the communication interface is used for communication between the output device and other devices.
- the memory may include random access memory (Random Access Memory, RAM for short), and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
- non-volatile memory such as at least one disk memory.
- the memory may also be at least one storage device located far from the foregoing processor.
- the above processor may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc .; it may also be a Digital Signal Processor (DSP) Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
- CPU Central Processing Unit
- NP Network Processor
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, any of the televisions applied to the output device is implemented. Wall image echo method.
- the output device can obtain video information and output the video information to each display unit in the TV wall through each output port. If a control instruction sent by the service device is received, the output of each output port is The video device sends the video information to the service device. The service device obtains the video information output by the output device to the TV wall. The service device combines multiple video information into a single line of echo information and outputs it, so as to realize the return of the video wall image in the target TV wall. It solves the problem that in the prior art, a TV wall system composed of multiple TV walls cannot implement the display function.
- a computer program is also provided.
- the computer program is executed by a processor, any of the foregoing video wall image echoing methods applied to an output device is implemented.
- the output device can obtain video information and output the video information to each display unit in the TV wall through each output port. If a control instruction sent by the service device is received, the output of each output port is The video device sends the video information to the service device. The service device obtains the video information output by the output device to the TV wall. The service device combines multiple video information into a single line of echo information and outputs it, so as to realize the return of the video wall image in the target TV wall. It solves the problem that in the prior art, a TV wall system composed of multiple TV walls cannot implement the display function.
Abstract
Description
Claims (20)
- 一种电视墙图像回显方法,其特征在于,应用于服务器件,所述服务器件与多个输出器件连接,所述多个输出器件分别与多个电视墙连接,所述服务器件用于获取输出器件向电视墙输出的视频信息,所述电视墙图像回显方法包括:获取回显指令,所述回显指令中包括待回显的目标电视墙的标识;根据所述待回显的目标电视墙的标识,向所述目标电视墙所连接的目标输出器件发送控制指令,所述目标输出器件具有多个输出端口,每一个所述输出端口与所述目标电视墙中的一个显示单元连接,并向该显示单元输出一路视频信息,所述控制指令用于指示所述目标输出器件将各所述输出端口的多路视频信息发送至所述服务器件;分别接收所述目标输出器件发送的所述多路视频信息;将所述多路视频信息组合为一路回显信息;输出所述回显信息。
- 根据权利要求1所述的方法,其特征在于,若所述目标电视墙所连接的目标输出器件为多个,所述向所述目标电视墙所连接的目标输出器件发送控制指令,包括:向所述目标电视墙所连接的多个目标输出器件同步发送所述控制指令。
- 根据权利要求1或2所述的方法,其特征在于,所述分别接收所述目标输出器件发送的所述多路视频信息,包括:分别接收所述目标输出器件发送的经过编码的多路视频码流;所述将所述多路视频信息组合为一路回显信息,包括:将所述多路视频码流分别进行解码;将经过解码的各路视频码流形成的图像进行拼接,形成回显图像;所述输出所述回显信息,包括:输出所述回显图像。
- 根据权利要求3所述的方法,其特征在于,在所述向所述目标电视墙所连接的目标输出器件发送控制指令之前,所述方法还包括:针对所述目标输出器件中的每一个输出端口,确定该输出端口所连接的显示单元在所述目标电视墙中的位置,将该位置作为该输出端口对应的位置;将各所述输出端口对应的位置,以及预设图像尺寸发送至所述目标输出器件,以使所述目标输出器件按所述位置和所述预设图像尺寸,对各所述输出端口的视频信息进行编码,形成所述多路经过编码的视频码流,其中所述预设图像尺寸为一路所述视频码流经过解码后所形成的图像的尺寸。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:将预设回显图像分辨率中宽度方向的分辨率和高度方向的分辨率,分别除以所述目标电视墙中横向显示单元的数量和竖向显示单元的数量,得到所述预设图像尺寸。
- 根据权利要求4所述的方法,其特征在于,所述将经过解码的各路视频码流形成的图像进行拼接,形成回显图像,包括:根据各所述输出端口对应的位置,将各所述输出端口对应的各路视频码流经过解码后形成的图像,拼接在对应的位置处,形成所述回显图像。
- 根据权利要求3所述的方法,其特征在于,在所述向所述目标电视墙所连接的目标输出器件发送控制指令之前,所述方法还包括:向所述目标输出器件发送时间戳,所述时间戳用于使所述目标输出器件发送的所述多路视频码流,具有同步的时间戳。
- 根据权利要求3所述的方法,其特征在于,所述输出所述回显图像,包括:将所述回显图像进行编码,形成回显码流;输出所述回显码流。
- 一种服务器件,其特征在于,所述服务器件与多个输出器件连接,所述多个输出器件分别与多个电视墙连接,所述服务器件用于获取输出器件向 电视墙输出的视频信息,所述服务器件包括:获取模块,用于获取回显指令,所述回显指令中包括待回显的目标电视墙的标识;同步发送模块,用于根据所述待回显的目标电视墙的标识,向所述目标电视墙所连接的目标输出器件发送控制指令,所述目标输出器件具有多个输出端口,每一个所述输出端口与所述目标电视墙中的一个显示单元连接,并向该显示单元输出一路视频信息,所述控制指令用于指示所述目标输出器件将各所述输出端口的多路视频信息发送至所述服务器件;编解码模块,用于分别接收所述目标输出器件发送的所述多路视频信息;将所述多路视频信息组合为一路回显信息;输出模块,用于输出所述回显信息。
- 根据权利要求9所述的服务器件,其特征在于,所述同步发送模块,具体用于:若所述目标电视墙所连接的目标输出器件为多个,向所述目标电视墙所连接的多个目标输出器件同步发送所述控制指令。
- 根据权利要求9或10所述的服务器件,其特征在于,所述编解码模块,具体用于:分别接收所述目标输出器件发送的经过编码的多路视频码流;将所述多路视频码流分别进行解码;将经过解码的各路视频码流形成的图像进行拼接,形成回显图像;所述输出模块,具体用于:输出所述回显图像。
- 根据权利要求11所述的服务器件,其特征在于,所述服务器件还包括:计算模块;所述计算模块,具体用于在所述同步发送模块向所述目标电视墙所连接的目标输出器件发送控制指令之前,针对所述目标输出器件中的每一个输出端口,确定该输出端口所连接的显示单元在所述目标电视墙中的位置,将该位置作为该输出端口对应的位置;将各所述输出端口对应的位置,以及预设 图像尺寸发送至所述目标输出器件,以使所述目标输出器件按所述位置和所述预设图像尺寸,对各所述输出端口的视频信息进行编码,形成所述多路经过编码的视频码流,其中所述预设图像尺寸为一路所述视频码流所构成的图像的尺寸。
- 根据权利要求12所述的服务器件,其特征在于,所述服务器件还包括:尺寸计算模块;所述尺寸计算模块,具体用于将预设回显图像分辨率中宽度方向的分辨率和高度方向的分辨率,分别除以所述目标电视墙中横向显示单元的数量和竖向显示单元的数量,得到所述预设图像尺寸。
- 根据权利要求12所述的服务器件,其特征在于,所述编解码模块,具体用于:根据各所述输出端口对应的相对位置,将各所述输出端口对应的各路视频码流形成的图像,拼接在对应的位置处,形成所述回显图像。
- 根据权利要求11所述的服务器件,其特征在于,所述同步发送模块,还用于:在所述同步发送模块向所述目标电视墙所连接的目标输出器件发送控制指令之前,向所述目标输出器件发送时间戳,所述时间戳用于使所述目标输出器件发送的所述多路视频码流,具有同步的时间戳。
- 根据权利要求11所述的服务器件,其特征在于,所述输出模块,具体用于:将所述回显图像进行编码,形成回显码流;输出所述回显码流。
- 一种电视墙系统,其特征在于,包括服务器件、多个输出器件、多个电视墙以及终端设备;所述服务器件用于实现如权利要求1至8中任一项所述的方法;所述服务器件分别与所述多个输出器件通过网络相连接;所述多个输出器件分别与所述多个电视墙连接,每一个输出器件具有多 个输出端口,每一个所述输出端口与所述电视墙中的一个显示单元连接,并向该显示单元输出一路视频信息;所述终端设备与所述服务器件连接,用于获取所述服务器件输出的回显信息。
- 一种服务器件,其特征在于,包括处理器、通信接口、存储器和通信总线,其中,处理器,通信接口,存储器通过通信总线完成相互间的通信;存储器,用于存放计算机程序;处理器,用于执行存储器上所存放的程序时,实现权利要求1-8任一所述的方法步骤。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质内存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1-8任一所述的方法步骤。
- 一种计算机程序,其特征在于,所述计算机程序用于在运行时执行权利要求1-8任一项所述的方法步骤。
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