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 PDF

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Publication number
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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WIPO (PCT)
Prior art keywords
target
output
wall
video
service device
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PCT/CN2019/088808
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English (en)
French (fr)
Inventor
夏超伟
陈王贤
宋义
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杭州海康威视数字技术股份有限公司
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Publication of WO2019233314A1 publication Critical patent/WO2019233314A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • H04N5/2624Studio 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • H04N5/265Mixing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • H04N5/268Signal distribution or switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181Closed-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

本申请实施例提供了一种电视墙图像回显方法、服务器件及电视墙系统,所述方法包括:服务器件获取回显指令,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。

Description

一种电视墙图像回显方法、服务器件及电视墙系统
本申请要求于2018年6月7日提交中国专利局、申请号为201810578987.3发明名称为“一种电视墙图像回显方法、服务器件及分布式电视墙系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及视频监控设备技术领域,特别是涉及一种电视墙图像回显方法、服务器件及电视墙系统。
背景技术
在视频监控领域中,电视墙得到了越来越多的应用,电视墙由多个显示器拼接组合而成,如LED(Light Emitting Diode,发光二极管)显示器或LCD(Liquid Crystal Display,液晶显示器)显示器等。电视墙上的每一个显示器都可以单独显示一路视频图像,或者可以通过电视墙上的各个显示器组合在一起,显示一路视频图像。所以电视墙能够支持窗口漫游、分屏、缩放等各种功能。使得用户能够更加方便查看多路视频图像。
在实际使用中,电视墙需要能够实现回显的功能,回显是指电视墙中所显示的视频图像,能够传输至其他的终端设备,例如,电脑等设备。通过终端设备可以同步的看到电视墙上所显示的视频图像。利用回显功能,能够通过终端设备对电视墙上所显示的视频图像进行查看,能够更好的对电视墙所显示的视频图像进行控制,并且满足各种业务的需要。
随着技术的进步,产生了由多个电视墙组成的电视墙系统,多个电视墙可以分布于不同的位置,也可以分布于相同位置。例如,多个电视墙可以分布于多个监控中心,每一个监控中心可以单独的控制一个电视墙来显示视频图像。随着多个电视墙组成的电视墙系统的应用,对于多个电视墙的统一调度和控制就显得越来越重要。其中,最为关键的就是在多个电视墙组成的电视墙系统中实现回显功能。
然而,针现有的能够实现电视墙回显的方案中,一般只能通过单个电视墙的控制设备对单个电视墙所显示的视频图像进行回显。由于单个电视墙的控制设备无法对分布式的多个电视墙进行控制,例如,通过与电视墙所连接 的FPGA(Field-Programmable Gate Array,即现场可编程门阵列)控制器,将已经拼接好的,正在向电视墙输出的视频图像,同步发送至终端设备,从而实现回显功能。然而,现有的单个电视墙的控制设备无法应用于多个电视墙组成的电视墙系统,无法对多个电视墙实现统一的调度和控制,进而无法实现多个电视墙的回显功能。所以,针对多个电视墙,如何实现回显功能,就成为了业内亟待解决的问题。
发明内容
本申请实施例的目的在于提供一种电视墙图像回显方法、服务器件及电视墙系统,以实现在多个电视墙组成的电视墙系统中实现回显功能。具体技术方案如下:
本申请实施例提供了一种电视墙图像回显方法,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
本申请实施例提供了一种电视墙图像回显方法,应用于输出器件,所述输出器件与电视墙连接,所述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,所述电视墙图像回显方法包括:
获取视频信息;
将所述视频信息分别通过各所述输出端口输出至所述电视墙中的各显示单元;
若接收到服务器件发送的控制指令,则将各所述输出端口输出的多路视频信息,发送至所述服务器件,所述服务器件用于获取所述输出器件向所述电视墙输出的视频信息。
可选的,所述将各所述输出端口输出的多路视频信息,发送至所述服务器件,包括:
将各所述输出端口输出的多路视频信息进行编码,形成多路视频码流;
将所述多路视频码流发送至所述服务器件。
可选的,若接收到所述服务器件发送的各端口对应的位置和预设图像尺寸,则所述将各所述输出端口输出的多路视频信息进行编码,形成多路视频码流,包括:
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,形成所述多路视频码流。
可选的,若接收到所述服务器件发送的时间戳,则所述将各所述输出端口输出的多路视频信息进行编码,形成多路视频码流,包括:
将各所述输出端口输出的多路视频信息同步进行编码,形成所述多路视频码流,并在所述多路视频码流中加入同步的所述时间戳。
本申请实施例还提供了一种服务器件,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
可选的,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。
本申请实施例还提供了一种输出器件,所述输出器件与电视墙连接,所述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,所述输出器件包括:
获取模块,用于获取视频信息;
输出模块,用于将所述视频信息分别通过各所述输出端口输出至所述电视墙中的各显示单元;
编解码模块,用于若接收到服务器件发送的控制指令,则将各所述输出 端口输出的多路视频信息,发送至所述服务器件,所述服务器件用于获取所述输出器件向所述电视墙输出的视频信息。
可选的,所述编解码模块,具体用于:
将各所述输出端口输出的多路视频信息进行编码,形成多路视频码流;将所述多路视频码流发送至所述服务器件。
可选的,若接收到所述服务器件发送的各端口对应的位置和预设图像尺寸,则所述编解码模块,具体用于:
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,形成所述多路视频码流。
可选的,若接收到所述服务器件发送的时间戳,则所述编解码模块,具体用于:
将各所述输出端口输出的多路视频信息同步进行编码,形成所述多路视频码流,并在所述多路视频码流中加入同步的所述时间戳。
本申请实施例还提供了一种电视墙系统,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上述任一种应用于服务器件的电视墙图像回显方法;
所述多个输出器件中的每一个输出器件用于实现上述任一种应用于输出器件的电视墙图像回显方法;
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。
本申请实施例还提供了一种服务器件,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,实现上述任一种应用于服务器件的电视墙图像回显方法步骤。
本申请实施例还提供了一种计算机可读存储介质,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上述任一种应用于服务器件的电视墙图像回显方法。
本申请实施例还提供了一种计算机程序,所述计算机程序用于在运行时执行上述任一种应用于服务器件的电视墙图像回显方法步骤。
本申请实施例提供的一种电视墙图像回显方法、服务器件及电视墙系统,其中,服务器件可以获取回显指令,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
附图说明
为了更清楚地说明本申请实施例和现有技术的技术方案,下面对实施例和现有技术中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的电视墙图像回显的示意图;
图2为本申请实施例提供的电视墙图像回显方法的一种流程图;
图3a为本申请实施例提供的目标电视墙的示意图;
图3b为本申请实施例提供的目标电视墙与输出端口之间映射关系的示意图;
图4为本申请实施例提供的服务器件与目标输出器件的交互流程图;
图5为本申请实施例提供的电视墙图像回显方法的另一种流程图;
图6为本申请实施例提供的服务器件的结构图;
图7为本申请实施例提供的输出器件的结构图;
图8为本申请实施例提供的电视墙系统的结构图。
具体实施方式
为使本申请的目的、技术方案、及优点更加清楚明白,以下参照附图并举实施例,对本申请进一步详细说明。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例提供的电视墙图像回显方法,能够应用于由服务器件、输出器件以及多个电视墙组成的电视墙系统中。其中,输出器件与电视墙连接,电视墙可以由多个位于不同位置或相同位置的电视墙构成,每一个电视墙至少连接有一个输出器件,输出器件可以获取视频信息,并将该视频信息通过输出端口输出至电视墙中的显示单元,在显示单元中显示出相应的图像,显示单元可以是LED显示器或LCD显示器等设备。服务器件及输出器件可以为具有视频编码、解码、合码等功能的芯片、主板、处理器等设备。
服务器件用于获取输出器件向电视墙输出的视频信息,具体的,服务器件能够控制输出器件,使得输出器件将向电视墙输出的视频信息,在向电视墙输出的同时,同步的发送至服务器件。服务器件再将收到的视频信息发送至终端,实现电视墙的回显功能。参见图1,电视墙101由9个显示单元构成,A1至A9分别为9个显示单元中显示的图像,9个显示单元中的图像共同构成电视墙图像,如图1所示,通过服务器件实现回显功能,可以将电视墙图像显示在终端设备102中。
多个电视墙的输出器件,可以分别通过电缆、数据线以及网络与服务器 件连接,其中网络可以包括局域网和互联网。服务器件能够对多个输出器件分别进行控制,并且分别获取各输出器件的视频信息,从而实现多个电视墙的回显功能。多个电视墙的输出器件还可以对视频信息按照各种编码方式进行编码,以及按照各种解码方式对编码后的视频信息进行解码等。
下面结合附图,对本申请实施例提供的电视墙图像回显方法进行详细的介绍。
参见图2,图2为本申请实施例提供的电视墙图像回显方法的一种流程图。应用于服务器件,包括:
步骤201,获取回显指令,回显指令中包括待回显的目标电视墙的标识。
服务器件可以为具有音视频数据处理能力的硬件设备,其中可以包括编解码芯片、控制芯片、网络端口以及相应的辅助元件和电路等。编解码芯片、控制芯片可以是能够实现数据处理的芯片或控制器,例如,CPU(Central Processing Unit,中央处理器),GPU(Graphic Processing Unit,图像处理器),FPGA等等。
服务器件可以通过多种方式获取回显指令,例如,与服务器件进行通信的终端设备,如计算机、手机、平板电脑等,向服务器件发送回显指令,服务器件便可以获取回显指令。终端设备可以通过网络的方式与服务器件建立通信连接,从而摆脱了传输距离的限制,更有利于本申请实施例所提供的电视墙图像回显方法在多个电视墙组成的电视墙系统中的应用。或者也可以直接在服务器件上输入回显指令,再或者可以由服务器件上预设的程序按一定规则自动触发回显指令。
由于上述电视墙系统中具有多个电视墙,所以显示指令中需要包括待回显的目标电视墙的标识,用于从多个电视墙指定待回显的目标电视墙。目标电视墙的标识可以是该目标电视墙的编号、名称或者是目标电视墙在网络中的IP地址等信息。只要能够用于从多个电视墙中区分出目标电视墙,则都可以作为目标电视墙的标识。
步骤202,根据待回显的目标电视墙的标识,向目标电视墙所连接的目标输出板发送控制指令,也就是,根据待回显的目标电视墙的标识,向目标电 视墙所连接的目标输出器件发送控制指令。目标输出器件具有多个输出端口,每一个输出端口与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,控制指令用于指示目标输出器件将各输出端口的多路视频信息发送至服务器件。
服务器件获取了回显指令后,可以根据回显指令中目标电视墙的标识,从多个电视墙中,确定出目标电视墙。然后,可以向该目标电视墙所连接的目标输出器件发送控制指令。
目标输出器件可以具有多个输出端口,但是由于目标电视墙中的显示单元数量可能较多,而目标输出器件上的输出端口的数量可能较少。所以,为了使得目标电视墙中的每一个显示单元都会有视频信息的输入,目标电视墙可以连接有多个目标输出器件,即多个目标输出器件中每一个目标输出器件的各输出端口都分别连接至目标电视墙中的各显示单元,并且分别向各显示单元输出一路视频信息。
所以,若目标电视墙所连接的目标输出器件为多个,则在本申请实施例中,步骤202,向目标电视墙所连接的目标输出板发送控制指令,可以包括:
向目标电视墙所连接的多个目标输出器件同步发送控制指令。
由于多个目标输出器件都通过各自的输出端口向目标电视墙的各显示单元输出视频信息。所以为了得到完整的电视墙图像,就需要同步的向目标电视墙所连接的各个目标输出器件发送控制指令。
目标输出器件接收到控制指令后,就可以通过各输出端口将视频信息继续输出至各显示单元,同时,将各输出端口的视频信息向服务器件发送。一个目标输出器件有多个输出端口,所以可以向服务器件发送多路的视频信息,例如,目标输出器件有3个输出端口,则该目标输出器件可以向服务器件发送3路视频信息。
并且,控制指令可以指示目标输出器件将各输出端口的视频信息同步的发送至服务器件,保证视频信息的一致性。当目标输出器件为多个时,则多个目标输出器件分别将各自的多路视频信息发送至服务器件。同时由于控制指令同步发送至各个目标输出器件,所以各个目标输出器件也可以同步的进 行多路视频信息的发送。
步骤203,分别接收目标输出板发送的多路视频信息,也就是,分别接收目标输出器件发送的多路视频信息。
服务器件可以分别接收目标输出器件发送的多路视频信息,具体的,服务器件可以通过所搭载的编解码芯片的多个接收通道来接收多路视频信息。
一般目标电视墙中显示单元的数量是已知的,并且服务器件所接收的多路视频信息的路数与显示单元的数量相同。所以,服务器件在接收目标输出器件发送的多路视频信息之前,可以预先记录多路视频信息的路数,这样,在接收多路视频信息之前,可以预先配置与该路数相同数量的接收通道来接收多路视频信息。每一路视频信息通过一个接收通道来进行接收,并可以通过该接收通道对所接收的一路视频信息进行后续的处理。
在由多个电视墙组成的电视墙系统中,服务器件和输出器件可以通过局域网或互联网的方式进行通信连接,所以,服务器件向目标输出器件发送的包括控制指令在内的各种信息和指令都可以通过网络进行发送。同样,目标输出器件也可以通过网络将包括多路视频信息在内的各种信息,通过网络向服务器件进行发送,服务器件通过所搭载的网络端口接收目标输出器件发送的多路视频信息,然后在将多路视频信息传输至编解码芯片的多个接收通道。
步骤204,将多路视频信息组合为一路回显信息。
服务器件接收了多路视频信息后,由于该多路视频信息为互相独立的视频图像,没有整合在一起,无法同步的将各路视频信息直接进行输出,并且接收该视频信息的终端设备一般也只有一个输入的端口,无法同时接收多路的视频信息。
所以服务器件需要将多路视频信息进行组合,构成一路回显信息。该回显信息中含有各路视频信息的图像,即将各路视频信息的图像进行拼接,还原成目标电视墙中所显示的电视墙图像的结构样式。
步骤205,输出回显信息。
服务器件将多路视频信息组合为一路回显信息之后,就可以将该回显信 息输出至终端设备上,终端设备可以是电脑、手机、平板电脑等设备,也可以是显示器等显示设备。
例如,服务器件可以将回显信息通过服务器件本身所具有的DP(DisplayPort,高清晰音视频流传输接口)接口,向显示器等设备进行输出。或者,服务器件还可以将回显信息通过电缆、数据线以及网络等方式向电脑、手机、平板电脑等终端设备进行输出。
终端设备获得该回显信息后,可以显示该回显信息中的图像,该图像即为目标电视墙的电视墙图像的回显图像,回显图像与目标电视墙的电视墙图像所包括的内容完全一致。
在对目标电视墙进行操作时,会使得该目标电视墙的目标输出器件向各显示单元发送的视频信息发生变化,该操作可以为窗口漫游、缩放、分屏、源替换和场景切换等操作。当目标输出器件向各显示单元发送的视频信息发生变化时,目标输出器件向服务器件发送的多路视频信息也相应发生变化。从而回显图像也会与目标电视墙中的电视墙图像同步发生改变,使得用户能够通过终端设备查看到目标电视墙中实时显示的电视墙图像。
在本申请实施例中,服务器件获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的电视墙系统中,解决了现有技术中,具有多个电视墙的电视墙系统无法实现回显功能的问题。
结合上面的实施例,为了使得目标输出器件与服务器件之间的视频信息的传输更加高效。目标输出器件在接收到控制指令后,可以对多路视频信息分别进行编码,然后再向服务器件发送经过编码的视频信息。
具体的,目标输出器件对多路视频信息进行编码时,可以采用H.264或 H.265等编码方式进行视频信息的编码。对多路视频信息进行编码后,可以得到多路的视频码流。然后再将多路视频码流同步的发送至服务器件。
相应的,在本申请实施例提供的电视墙图像回显方法中,步骤203,分别接收目标输出板发送的多路视频信息,可以包括:
分别接收目标输出器件发送的经过编码的多路视频码流。
当目标输出器件将多路视频信息进行编码得到多路视频码流,并将多路视频码流同步的发送至服务器件时,相应的服务器件所接收到的也就是该多路视频码流。与上述实施例中的过程相同,服务器件可以通过所搭载的编解码芯片的多个接收通道来分别接收多路视频码流。
相应的,在本申请实施例中,步骤204,将多路视频信息组合为一路回显信息,可以包括:
步骤a,将多路视频码流分别进行解码。
当服务器件接收到多路视频码流之后,可以对多路视频码流分别进行解码。具体的,服务器件对多路视频码流解码的过程可以通过所搭载的编解码芯片来实现。编解码芯片接收该路视频码流的多个接收通道,可以作为解码通道,用于对所接收的多路视频码流分别进行解码。
步骤b,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。
经过解码的各路视频码流为可以进行显示的图像所组成的。目标输出器件所发送的多路视频码流是连续的数据。服务器件可以在接收该多路视频码流的同时,对多路视频码流进行解码,然后将经过解码的各路视频码流得到的图像按目标电视墙中电视墙图像原有的结构位置进行拼接,形成实时的回显图像。上述过程为动态的过程,实时的同步进行,从而使得回显图像与目标电视墙中的电视墙图像保持同步和一致。
具体的,服务器件将各路视频码流对应的图像进行拼接也可以通过服务器件所搭载的编解码芯片实现。编解码芯片中可以预先配置一合码通道,该合码通道可以用于将多个解码通道进行解码的多路视频码流进行合码操作,从而实现对各路视频码流对应的图像进行拼接,形成回显图像。
相应的,在本申请实施例中,步骤205,输出回显信息,包括:输出回显图像。
服务器件可以实时的将得到的回显图像进行输出。在一种实施方式中,服务器件可以实时通过DP接口向显示器设备输出回显图像,从而显示器设备能够实时的显示该回显图像。用户通过查看回显图像能够获知目标电视墙中所实时显示的电视墙图像包括的内容。
在本申请实施例的另一种实现方式中,服务器件可以将实时的得到的回显图像输出至电脑、手机等终端设备中。由于终端设备与服务器件可能不通过视频线连接,所以无法识别回显图像。例如,手机、电脑等终端设备可以通过局域网或者互联网与服务器件进行连接。服务器件需要通过网络将回显图像输出至移动终端。所以,在本申请实施例中,上述输出回显图像的步骤,可以包括:
第一步,将回显图像进行编码,形成回显码流。
第二步,输出回显码流。
由于回显图像不能通过网络直接进行传输,所以需要对回显图像重新进行编码,编码方式可以采用现有的任意编码方式,如H.264及H.265等。服务器件可以将实时产生的回显图像进行编码,得到实时的回显码流。
然后将该回显码流通过网络、数据线、电缆等形式传输至电脑、手机等终端设备。终端设备得到该回显码流后,对该回显码流进行解码,从而得到能够直接显示的回显图像。
通过对回显图像进行编码,形成回显码流,使得服务器件能够通过网络等无法传输图像格式的数据的方式向终端设备输出该回显码流。使得终端设备可以通过网络等无法传输图像格式的数据的方式获得目标电视墙的回显图像,从而更有利于在由多个电视墙组成的电视墙系统中应用本申请实施例提供的电视墙图像回显方法。
结合上述的各个实施例,在本申请实施例提供的电视墙图像回显方法中,在步骤202,在向目标电视墙所连接的目标输出板发送控制指令之前,该方法还可以包括:
步骤A,针对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目标电视墙中的相对位置,将该相对位置作为该输出端口对应的相对位置。
目标输出器件中每一个输出端口连接至目标电视墙中的一个显示单元,目标电视墙中的显示单元按一定的规则进行排列,从而形成目标电视墙。所以,每一个输出端口所连接的显示单元在目标电视墙中都有其固定的位置。即每一个输出端口向显示单元输出的视频信息所形成的图像在目标电视墙中也具有其固定的位置。
为了在后续的步骤中,使得目标输出器件在对多路视频信息进行编码时能够参照显示单元在目标电视墙中位置,对各输出端口的多路视频信息进行编码,可以确定每一个输出端口在目标电视墙中对应的位置。
参见图3a和图3b,图3a为目标电视墙的一种示意图,从图3a中可以看出目标电视墙具有9个显示单元。如果一个目标输出器件具有两个输出端口时,则与该目标电视墙所连接的目标输出器件至少为5个,其中4个目标输出器件的全部两个输出端口都连接至显示单元,另1个目标输出器件中仅需要一个输出端口连接至显示单元。
每一个目标输出器件的各个输出端口连接的显示单元为预先设置的,所以,可以得到如图3b所示的输出端口与目标电视墙的映射图。图3b中,输出端口1-1表示第一目标输出器件的第一输出端口,输出端口1-2表示第一目标输出器件的第二输出端口,输出端口2-1表示第二目标输出器件的第一输出端口,输出端口2-2表示第二目标输出器件的第二输出端口,以此类推,输出端口3-1表示第三目标输出器件的第一输出端口,输出端口3-2表示第三目标输出器件的第二输出端口,输出端口4-1表示第四目标输出器件的第一输出端口,输出端口4-2表示第四目标输出器件的第二输出端口,输出端口5-1表示第五目标输出器件的第一输出端口。通过图3a和图3b,可以确定出每一个输出端口所连接的显示单元在目标电视墙中的位置,从而确定出每一个输出端口对应的位置。
步骤B,将各输出端口对应的位置,以及预设图像尺寸发送至目标输出器件,以使目标输出器件按各输出端口对应的位置和预设图像尺寸,对各输出 端口的视频信息进行编码,形成多路经过编码的视频码流,其中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。
服务器件确定出目标输出器件的各输出端口对应的位置之后。就可以将该各输出端口对应的位置以及预设图像尺寸发送至目标输出器件,当目标输出器件为多个时,可以分别将各个目标输出器件的各输出端口对应的位置,分别发送至各目标输出器件。
目标电视墙在显示电视墙图像时,每一路视频信息的图像尺寸与显示单元的大小尺寸和分辨率相适应。然而,如果直接对每一路视频信息进行编码,则服务器件最终得到的回显图像的大小尺寸和分辨率,依然与目标电视墙中显示单元的大小尺寸和分辨率相适应。当回显图像需要在尺寸较小的电脑显示器、手机等终端设备进行显示时,服务器件需要对拼接后的回显图像进行缩放,以适应终端设备中屏幕的尺寸和分辨率。
但缩放的过程十分消耗资源,会降低服务器件的运行效率,所以,服务器件可以预设设置有预设图像尺寸,该预设图像尺寸为与终端设备的屏幕的尺寸和分辨率相适应的图像尺寸。目标输出器件按该预设图像尺寸对每一路视频信息进行编码时,每一路视频码流经过解码后形成的图像进行拼接形成回显图像后,该回显图像就不需要进行缩放,能够直接在终端设备的屏幕中进行显示。从而减少了服务器件资源的消耗,提高了服务器件的运行效率。
当将各输出端口对应的位置以及预设图像尺寸发送至目标输出器件后,目标输出器件就可以根据各输出端口对应的位置以及预设图像尺寸,对每一个输出端口的视频信息进行编码,使得编码后的视频码流与输出端口对应的位置以及预设图像尺寸相适应,使得服务器件在对多路视频码流进行解码和拼接的过程中,能够更加方便和快捷,提高了服务器件的效率。
结合上面的实施例,可选的,在本申请实施例提供的电视墙图像回显方法中,还可以包括: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,得到预设图像尺寸。
服务器件形成的回显图像最终需要在终端设备上进行显示,在服务器件 执行本申请实施例提供的电视墙图像回显方法之前,可以预先确定出最终回显图像需要显示的终端设备,例如,通过电脑向服务器件发送回显指令,则可以表示回显图像需要在该电脑上进行显示。所以,服务器件可以确定出该终端设备所要显示的回显图像的分辨率,该分辨率可以作为预设回显图像分辨率。例如,终端设备在向服务器件发送回显指令时,可以同时选择最终回显图像的分辨率,并将该分辨率发送至服务器件,服务器件可以将该分辨率作为预设回显图像分辨率。
预设回显图像分辨率中包括宽度方向的分辨率和高度方向的分辨率,如预设回显图像分辨率为1920×1080,则宽度方向的分辨率为1920,高度方向的分辨率为1080。
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为已知的参数,例如,如图3a所示的目标电视墙,横向显示单元的数量和竖向显示单元的数量均为3。
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,就可以确定出在终端设备中显示的回显图像中,每一路视频码流经过解码后形成的图像的分辨率,而该分辨率就可以作为预设图像尺寸。例如,结合上述的例子,经过计算:(1920/3)×(1080/3)=640×360。则最终的640×360可以作为预设图像尺寸。在计算过程中,如果出现不能整除的情况时,则可以将余数均补齐到最后的一列或一行中,或者也可以直接取整。
结合上述的各实施例,若服务器件确定出目标输出器件的各输出端口对应的位置,则在本申请实施例提供的电视墙图像回显方法中,步骤b,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,可以包括:
根据各输出端口对应的位置,将各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,形成回显图像。
目标输出器件的每一个输出端口的视频信息经过编码后,可以形成一路视频码流。该视频码流经过解码后可以得到相应的图像。
为了使得回显图像与目标电视墙所显示的电视墙图像中各路图像的分布 位置完全一致。在对个视频码流解码后得到的图像进行拼接时,可以按照该图像对应的电视墙图像中的位置进行拼接。各输出端口对应的位置,可以表示出该输出端口连接的显示单元在目标电视墙中的位置,也可以表示出该输出端口的视频信息对应的图像在目标电视墙中的位置。所以,该输出端口的视频信息编码后的视频码流经过解码得到的图像,也要在回显图像中具有相应的位置。
例如,如图3a所示的目标电视墙,图3b中输出端口1-1对应目标电视墙中左上角的第一个显示单元,那么输出端口1-1对应位置即为该左上角第一个显示单元所对应的位置,那么输出端口1-1的视频信息编码后的视频码流经过解码得到的图像,在回显图像中的位置即为回显图像中左上角位置。
从而将各输出端口对应的各路视频码流经过解码后得到的图像,按照各输出端口对应的位置进行拼接后,所得到的回显图像就可以与电视墙图像中各路图像的分布位置保持一致,从而使得用户能够看到与电视墙图像内容一致的回显图像。并且通过各输出端口对应的位置进行拼接,简化了服务器件进行图像拼接的处理过程,进一步提高了服务器件的效率。
结合上述的各实施例,在本申请实施例提供的电视墙图像回显方法中,在步骤202,向目标电视墙所连接的目标输出板发送控制指令之前,该方法还包括:
步骤C,向目标输出器件发送时间戳,时间戳用于使目标输出器件发送的多路视频码流,具有同步的时间戳。
服务器件在向目标输出器件发送控制指令之前,还可以先向目标输出器件发送时间戳,时间戳可以用来指示目标输出器件确定所发送的多路视频码流具有同步的时间戳,从而保证多路视频码流时间上的一致性。当目标输出器件为多个时,还可以保证多个目标输出器件之间的一致性。
目标输出器件接收到该时间戳后,可以根据该时间戳,对各输出端口的路视频进行编码,并在编码后的多路视频码流中加入同步的时间戳。进而,当目标输出器件接收到控制指令时,就可以开始将多路视频码流向服务器件进行发送,服务器件在对多路视频码流进行解码后,可以按其中的时间戳, 同步的拼接并输出或显示各路解码后的视频码流形成的图像。
具体的过程,可以如图4所示,其中包括:
步骤401,服务板向目标输出板发送时间戳,也就是,服务器件向目标输出器件发送时间戳。
服务器件可以通过向目标输出器件发送时间戳的方式使目标输出器件处于同步锁定状态,同步锁定状态是指目标输出器件将各输出端口的视频信息的时间保持一致。当目标输出器件为多个时,可以将多个目标输出器件的各输出端口的视频信息的时间保持一致。
步骤402、目标输出板向服务板发送确认信息,也就是,目标输出器件向服务器件发送确认信息。
目标输出器件得到时间戳后,可以向服务器件发送确认信息,该确认信息用于告知服务器件目标输出器件处于同步锁定状态。
步骤403、服务板向目标输出板发送控制指令,也就是,服务器件向目标输出器件发送控制指令。
步骤404、目标输出板向服务板发送多路视频码流,也就是,目标输出器件向服务器件发送多路视频码流。
目标输出器件接收到控制指令后,将各输出端口的视频信息同步进行编码,并在视频码流中加入同步的时间戳,然后同步的发送至服务器件。
在本申请实施例中,通过向目标输出器件发送时间戳,进一步保证目标输出器件能够同步的对各输出端口的视频信息进行编码,并同步进行发送。保证了多路视频码流的时间上的一致性,从而保证了最终回显图像中包括的各路图像在时间上的一致性。
参见图5,图5为本申请实施例提供的电视墙图像回显方法的另一种流程图,应用于输出器件,包括:
步骤501,获取视频信息。
输出器件接收的视频信息可以是一路或多路。输出器件获取视频信息的方式有多种,例如,通过网络传输的方式,获取网络摄像机所传输的视频码流,然后将该视频码流进行解码,从而得到视频信息。
或者还可以通过视频线及视频分接口,如DVI(Digital Visual Interface,即数字视频接口)、VGA(Video Graphics Array,视频出书接口)、HDMI(High Definition Multimedia Interface,高清晰度多媒体接口等接口),接入相应的视频信息。
步骤502,将视频信息分别通过各输出端口输出至电视墙中的各显示单元。
输出器件接收视频信息后,可以通过各输出端口传输至各输出端口所连接的显示单元,各显示单元便可以显示相应图像。
步骤503,若接收到服务板发送的控制指令,则将各输出端口输出的多路视频信息发送至服务板,也就是,若接收到服务器件发送的控制指令,则将各输出端口输出的多路视频信息发送至服务器件。服务器件用于获取输出器件向电视墙输出的视频信息。
当输出器件接收到服务器件发送的控制指令时,将正在向电视墙输出的各路视频信息,继续向电视墙中的各显示单元输出,同时将视频信息发送至服务器件。
可选的,在本申请实施例提供的电视墙图像回显方法中,步骤503中将各输出端口输出的多路视频信息发送至服务器件的方式,可以包括:
步骤a1,将各输出端口输出的多路视频信息进行编码,形成多路视频码流。
步骤b1,将多路视频码流发送至服务器件。
为了将视频信息更有效的传输至服务器件,并且能够使用网络传输的传输方式,输出器件可以对多路视频信息进行编码,从而形成多路的视频码流;然后将编码得到的视频码流向服务器件进行发送。
可选的,在本申请实施例提供的电视墙图像回显方法中,若接收到服务器件发送的各输出端口对应的位置和预设图像尺寸,则步骤a1,将各输出端 口输出的多路视频信息进行编码,形成多路视频码流,可以包括:
按各输出端口的位置和预设图像尺寸,对各输出端口的视频信息进行编码,形成多路视频码流。
输出器件根据各输出端口对应的位置和预设图像尺寸,对多路视频信息分别进行编码,使得多路视频码流所形成的图像能够通过服务器件的拼接,成为可以尺寸适合在终端设备上进行显示的回显图像,不需要经过服务器件进行缩放,从而提高了服务器件的效率。
可选的,在本申请实施例提供的电视墙图像回显方法中,若接收到服务器件发送的时间戳,则步骤a1,将各输出端口输出的多路视频信息进行编码,形成多路视频码流,可以包括:
将各输出端口输出的多路视频信息同步进行编码,形成多路视频码流,并在多路视频码流中加入同步的时间戳。
输出器件接收到服务器件发送的时间戳,可以根据该时间戳同步的对各输出端口的视频信息进行编码,保证了多路视频码流时间的一致性。并且在编码时,可以将时间戳加入视频码流,使得服务器件可以根据该时间戳同步的进行图像的拼接得到回显图像,以及同步的显示或输出回显图像。
参见图6,图6为本申请实施例提供的服务器件的结构图。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601,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602,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603,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604,用于输出所述回显信息。
在本申请实施例中,服务器件获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
可选的,在本申请实施例提供的服务器件中,所述同步发送模块602,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。
可选的,在本申请实施例提供的服务器件中,所述编解码模块603,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604,具体用于:输出所述回显图像。
可选的,在本申请实施例提供的服务器件中,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602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。
可选的,在本申请实施例提供的服务器件中,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。
可选的,在本申请实施例提供的服务器件中,所述编解码模块603,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。
可选的,在本申请实施例提供的服务器件中,所述同步发送模块602,还用于:
在所述同步发送模块602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。
可选的,在本申请实施例提供的服务器件中,所述输出模块604,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。
参见图7,图7为本申请实施例提供的输出器件的结构图。所述输出器件与电视墙连接,所述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,所述输出器件包括:
获取模块701,用于获取视频信息;
输出模块702,用于将所述视频信息分别通过各所述输出端口输出至所述电视墙中的各显示单元;
编解码模块703,用于若接收到服务器件发送的控制指令,则将各所述输出端口输出的多路视频信息,发送至所述服务器件,所述服务器件用于获取所述输出器件向所述电视墙输出的视频信息。
可见,在本申请实施例中,输出器件可以获取视频信息,将视频信息分别通过各输出端口输出至电视墙中的各显示单元,若接收到服务器件发送的控制指令,则将各输出端口输出的多路视频信息,发送至服务器件,服务器件获取输出器件向电视墙输出的视频信息,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
可选的,在本申请实施例提供的输出器件中,所述编解码模块703,具体用于:
将各所述输出端口输出的多路视频信息进行编码,形成多路视频码流;将所述多路视频码流发送至所述服务器件。
可选的,在本申请实施例提供的输出器件中,若接收到所述服务器件发送的各端口对应的位置和预设图像尺寸,则所述编解码模块703,具体用于:
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,形成所述多路视频码流。
可选的,在本申请实施例提供的输出器件中,若接收到所述服务器件发送的时间戳,则所述编解码模块703,具体用于:
将各所述输出端口输出的多路视频信息同步进行编码,形成所述多路视频码流,并在所述多路视频码流中加入同步的所述时间戳。
参见图8,图8为本申请实施例提供的电视墙系统的结构图。
电视墙系统中可以包括服务板、多个输出板、多个电视墙以及终端设备,其中,服务板也就是服务器件,多个输出板也就是多个输出器件。服务器件 用于实现上述任一种应用于服务器件的电视墙图像回显方法。多个输出器件中的每一个输出器件用于实现上述任一种应用于输出器件的电视墙图像回显方法。
可见,在本申请实施例中,服务器件可以获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
服务器件分别与多个输出器件通过网络相连接。其中网络可以包括局域网和互联网等。具体的,服务器件和每一个输出器件可以分别与交换机连接,通过交换机使得服务器件与每一个输出器件相连接。
多个输出器件分别与多个电视墙连接,每一个输出器件具有多个输出端口,每一个输出端口与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。
如图8所示,一个电视墙可以连接有多个输出器件,图8中的输出板1-1表示与电视墙1连接的第一个输出器件,输出板1-n表示与电视墙1连接的第N个输出器件。同理,输出板2-1表示与电视墙2所连接的第一个输出器件,输出板2-n表示与电视墙2连接的第N个输出器件。输出板3-1表示与电视墙3所连接的第一个输出器件,输出板3-n表示与电视墙3连接的第N个输出器件。
终端设备与服务器件连接,用于获取服务器件输出的回显信息。
终端设备同样可以通过交换机,利用网络与服务器件连接。从而通过网络向服务器件发送回显指令,并且接收服务器件发送的回显码流。
终端设备可以通过服务器件,获取指定的目标电视墙中所显示的电视墙图像的回显码流,并且解码后可以看到实时的回显图像。从而在由多个电视 墙组成的电视墙系统中实现了回显功能,使得用户能够更便捷的通过终端设备查看各个电视墙中所显示的电视墙图像。
本申请实施例还提供了一种服务器件,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,实现上述任一种应用于服务器件的电视墙图像回显方法。
在本申请实施例中,服务器件获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
上述服务器件提到的通信总线可以是外设部件互连标准(Peripheral Component Interconnect,简称PCI)总线或扩展工业标准结构(Extended Industry Standard Architecture,简称EISA)总线等。该通信总线可以分为地址总线、数据总线、控制总线等。为便于表示,图中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
通信接口用于上述服务器件与其他设备之间的通信。
存储器可以包括随机存取存储器(Random Access Memory,简称RAM),也可以包括非易失性存储器(non-volatile memory),例如至少一个磁盘存储器。可选的,存储器还可以是至少一个位于远离前述处理器的存储装置。
上述的处理器可以是通用处理器,包括中央处理器(Central Processing Unit, 简称CPU)、网络处理器(Network Processor,简称NP)等;还可以是数字信号处理器(Digital Signal Processing,简称DSP)、专用集成电路(Application Specific Integrated Circuit,简称ASIC)、现场可编程门阵列(Field-Programmable Gate Array,简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
在本申请的又一实施例中,还提供了一种计算机可读存储介质,计算机可读存储介质内存储有计算机程序,计算机程序被处理器执行时实现上述任一种应用于服务器件的电视墙图像回显方法。
在本申请实施例中,服务器件获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
在本申请的又一实施例中,还提供了一种计算机程序,该计算机程序被处理器执行时实现上述任一种应用于服务器件的电视墙图像回显方法。
在本申请实施例中,服务器件获取回显指令后,根据回显指令确定出目标电视墙,并且向目标电视墙的目标输出器件发送控制指令,使得目标输出器件将向目标电视墙中各显示单元输出的视频信息发送至服务器件,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显。在本申请实施例中,服务器件能够根据回显指令,从多个电视墙中,获得目标电视墙的回显图像,所以使得本申请实施例提供的电视墙图像回显方法能够应用于具有多个电视墙的分布式电视墙系统中,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
本申请实施例还提供了一种输出器件,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,实现上述任一种应用于输出器件的电视墙图像回显方法。
在本申请实施例中,输出器件可以获取视频信息,将视频信息分别通过各输出端口输出至电视墙中的各显示单元,若接收到服务器件发送的控制指令,则将各输出端口输出的多路视频信息,发送至服务器件,服务器件获取输出器件向电视墙输出的视频信息,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
上述输出器件提到的通信总线可以是外设部件互连标准(Peripheral Component Interconnect,简称PCI)总线或扩展工业标准结构(Extended Industry Standard Architecture,简称EISA)总线等。该通信总线可以分为地址总线、数据总线、控制总线等。为便于表示,图中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
通信接口用于上述输出器件与其他设备之间的通信。
存储器可以包括随机存取存储器(Random Access Memory,简称RAM),也可以包括非易失性存储器(non-volatile memory),例如至少一个磁盘存储器。可选的,存储器还可以是至少一个位于远离前述处理器的存储装置。
上述的处理器可以是通用处理器,包括中央处理器(Central Processing Unit,简称CPU)、网络处理器(Network Processor,简称NP)等;还可以是数字信号处理器(Digital Signal Processing,简称DSP)、专用集成电路(Application Specific Integrated Circuit,简称ASIC)、现场可编程门阵列(Field-Programmable Gate Array,简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
在本申请的又一实施例中,还提供了一种计算机可读存储介质,计算机可读存储介质内存储有计算机程序,计算机程序被处理器执行时实现上述任 一种应用于输出器件的电视墙图像回显方法。
在本申请实施例中,输出器件可以获取视频信息,将视频信息分别通过各输出端口输出至电视墙中的各显示单元,若接收到服务器件发送的控制指令,则将各输出端口输出的多路视频信息,发送至服务器件,服务器件获取输出器件向电视墙输出的视频信息,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
在本申请的又一实施例中,还提供了一种计算机程序,该计算机程序被处理器执行时实现上述任一种应用于输出器件的电视墙图像回显方法。
在本申请实施例中,输出器件可以获取视频信息,将视频信息分别通过各输出端口输出至电视墙中的各显示单元,若接收到服务器件发送的控制指令,则将各输出端口输出的多路视频信息,发送至服务器件,服务器件获取输出器件向电视墙输出的视频信息,服务器件将多路视频信息组合成一路回显信息后进行输出,从而实现目标电视墙中电视墙图像的回显,解决了现有技术中,由多个电视墙组成的电视墙系统无法实现回显功能的问题。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中的各个实施例均采用相关的方式描述,各个实施例之间相同相似的部分互相参见即可,每个实施例重点说明的都是与其他实施例的不同之处。尤其,对于服务器件、系统实施例而言,由于其基本相似于方法实施例,所以描述的比较简单,相关之处参见方法实施例的部分说明即可。
以上所述仅为本申请的较佳实施例而已,并不用以限制本申请,凡在本 申请的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本申请保护的范围之内。

Claims (20)

  1. 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。
  2. 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。
  3. 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。
  4. 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。
  5. 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。
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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。
  12. 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。
  13. 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。
  14. 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。
  15. 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。
  16. 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。
  17. 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。
  18. 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。
  19. 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。
  20. 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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