WO2019010827A1 - 视频获取方法、装置、视频设备及存储介质 - Google Patents

视频获取方法、装置、视频设备及存储介质 Download PDF

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Publication number
WO2019010827A1
WO2019010827A1 PCT/CN2017/103245 CN2017103245W WO2019010827A1 WO 2019010827 A1 WO2019010827 A1 WO 2019010827A1 CN 2017103245 W CN2017103245 W CN 2017103245W WO 2019010827 A1 WO2019010827 A1 WO 2019010827A1
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Prior art keywords
video
data
screen
local
desktop
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PCT/CN2017/103245
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English (en)
French (fr)
Inventor
田楠
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广州视源电子科技股份有限公司
广州视臻信息科技有限公司
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Publication of WO2019010827A1 publication Critical patent/WO2019010827A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Definitions

  • the present invention relates to the field of multimedia technologies, and in particular, to a video acquisition method, apparatus, video device, and storage medium.
  • video conferencing has become the main form of conference for cross-regional companies.
  • participants in different areas can make video connections through local video devices for video conferencing.
  • a local participant wants to describe a document, video, slideshow, or picture in a video conference
  • the local participant and the remote participant respectively open the data, and the local participant informs the remote participant of the data display position, so that the remote participant manually adjusts the data display position, thereby implementing the remote video device.
  • This data is displayed in real time.
  • the video conferencing software installed in the video device is re-developed in advance, so that the video conferencing software can perform video encoding on the displayed data in real time, and then send the video encoded data to the remote video device to implement
  • the remote video device displays the data in real time. If the video conferencing software is not redeveloped in advance, the above solution will not be implemented.
  • the embodiment of the invention provides a video acquisition method, device, video device and storage
  • the medium to solve the technical problems in the existing video conference process, so that the remote video device displays the shared data in real time is too cumbersome.
  • an embodiment of the present invention provides a video acquiring method, including:
  • the embodiment of the present invention further provides a video acquiring apparatus, including:
  • connection establishing module configured to establish a video conference connection between the local video device and the at least one remote video device
  • a data conversion module configured to convert screen data of a preset desktop acquired by the local video device into video output data of a camera in a video conference connection, where screen data of the preset desktop is to capture a display screen of the preset desktop The data obtained after taking it;
  • a data sending module configured to send the video output data to the remote video device, so that the remote video device displays the video output data in real time.
  • the embodiment of the present invention further provides a video device, including:
  • One or more processors are One or more processors;
  • a storage device for storing one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement a video acquisition method as described in the embodiments of the present invention.
  • an embodiment of the present invention further provides a computer readable storage medium, where A computer program that, when executed by a processor, implements a video acquisition method as described in an embodiment of the present invention.
  • the video acquisition method, the device, the video device, and the storage medium provided by the above after the local video device establishes a video conference connection with the at least one remote video device, converting the screen data of the preset desktop acquired by the local video device into the video of the current camera.
  • the technical solution of the video output data realizes that in the video conference, the preset desktop of the non-local participant video data can be realized without any modification or secondary development of the video conference software in the local video device and the remote video device.
  • the screen data is displayed in real time on the remote video device. At the same time, it is not necessary to pre-send the text data, video data, slide data, and picture data that the local participants need to display to the remote participants, so that the remote participants can manually realize the real-time display.
  • FIG. 1a is a flowchart of a video acquisition method according to Embodiment 1 of the present invention.
  • Figure 1b is a schematic diagram of a video conference system
  • FIG. 1 is a flowchart of a video acquisition method according to Embodiment 1 of the present invention.
  • FIG. 2a is a flowchart of a video acquisition method according to Embodiment 2 of the present invention.
  • 2b is a schematic diagram of an application scenario of a video conference system
  • 2c is a data processing flowchart of the video conference system
  • FIG. 3 is a flowchart of a video acquiring method according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a video acquiring apparatus according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a video device according to Embodiment 5 of the present invention.
  • FIG. 1 is a flowchart of a video acquisition method according to Embodiment 1 of the present invention.
  • the video acquisition method provided in this embodiment is applicable to a video conference of at least two remote video devices.
  • the video acquisition method provided in this embodiment may be performed by a video conference device, and the video conference device may be implemented by software and/or hardware, and integrated in a local video device.
  • the video obtaining method provided in this embodiment specifically includes:
  • the video conference is that at least two video devices that are not in the same place interact and perform video connection through the Internet, so as to ensure that at least two participants who are not in the same place can perform normal conference communication through the video device.
  • the video device software based on an open platform such as Windows or android is installed in the video device.
  • the video device used by the current present or hosted participant is a local video device
  • the other video device connected to the current local video device is a remote video device.
  • the local video device is provided with at least one actual camera.
  • the remote video device can be the same video device as the local video device or a different video device.
  • establishing a video conference connection between the local video device and the remote video device means that the video conference software in the local video device establishes a connection with the video conference software in the remote video device.
  • the specific manner of the connection is not limited in this embodiment.
  • the local video device can perform video data transmission with the remote video device, where the video data is data conforming to the video protocol and the video format.
  • the screen data of the preset desktop is not the same as the actual video data acquired by the actual camera.
  • the actual video data is the spatial video data of the current local participant captured by the actual camera.
  • the screen data of the preset desktop is the data obtained after the display screen of the preset desktop is captured.
  • the preset desktop may be a desktop of the local video device or a desktop of the smart device operated by the local participant, where the smart device may directly connect with the local video device, and may also be associated with the local video device through the intermediate device.
  • the specific connection manner is not limited in this embodiment.
  • the smart device can be a device such as a smart phone, a tablet telegraph, a laptop computer, and a desktop computer.
  • the capturing the display screen refers to performing a grab operation on each pixel of the current display screen to obtain the same data as the display content in the current display screen, where the data includes information of each pixel point, and is acquired by other devices.
  • the display screen of the preset desktop can be determined according to the information of each pixel point.
  • the specific format of the data is not limited in this embodiment.
  • the data may be in a picture format, that is, performing a grab operation on each pixel of the display screen to generate the same picture data as the display content, which is similar to the screenshot processing.
  • the display content can be text, slides, pictures, videos, and the like.
  • the capture frequency can be set, and the screen data is acquired according to the capture frequency to ensure the accuracy and effectiveness of the screen data.
  • the above process of crawling can be considered as a process of "shooting" the screen data of the preset desktop in the video conference scene.
  • the screen data of the preset desktop defaults to data obtained after the entire display screen of the preset desktop is captured.
  • the preset desktop screen data may also be part of the preset desktop display. The data obtained after the capture.
  • the local participant can implement the screen data by operating the local video device or a control device (such as a smart pen or a remote controller) associated with the local video device. Turn pages, slide, etc.
  • a control device such as a smart pen or a remote controller
  • the local participant can implement operations such as page turning, sliding, and the like of the screen data by controlling the smart terminal. Further, after the local video device obtains the screen data of the preset desktop, the screen data may be displayed on the display screen or may not be displayed.
  • an exemplary description is made with a desktop that presets a desktop as a smart terminal.
  • a local participant may need to switch between multiple smart devices, and the local video device needs to switch the input source of the screen data of the preset desktop among multiple smart devices. In this case, in order to simplify the switching.
  • the process can transmit the screen data of the desktop of the smart terminal to the local video device through the intermediate device.
  • the intermediate device is preferably a screen device.
  • a screen device is a type of device that can transmit the screen data of a smart device to a local video device in real time.
  • the screen device is connected to the at least one smart device by wire or wirelessly, and the display screen of the at least one smart device desktop is sent to the local video device as the screen data of the preset desktop.
  • the switching process between the smart device and the screen device is much simpler than the switching process between the local video device and the smart device.
  • the screen data of the preset desktop is format converted, so that the converted data is the same as the data format output by the actual camera, and the data of the format is an input source supported by the video conference software. Further, the format converted data is output as video data.
  • the video output data can be regarded as the data output after the camera currently used in the video conference connection "shoots".
  • a virtual camera is installed in the local video device in advance, and the virtual desktop is used to format convert the screen data of the preset desktop to obtain video output data.
  • the virtual camera is a kind of application software that can simulate a real camera.
  • the virtual camera can be a virtual Universal Serial Bus (USB) device or a SourceFilter based on DirectShow.
  • DirectShow is a development package based on Component Object Model (COM)
  • COM Component Object Model
  • Source Filter is a video capture method.
  • applications that can output any of the input sources supported by video conferencing software can be referred to as virtual cameras.
  • the virtual camera of the local video device has the same data format as the actual camera, and the video conferencing software supports the data in the format.
  • the local participant wants to transmit the participant video captured by the actual camera
  • the camera switching can be directly performed.
  • the local video device will shoot the actual camera.
  • the actual video data is switched to the video output data captured by the current camera and input to the video conferencing software.
  • the local video device does not need to perform any operation on the video conference software, that is, the video conference software does not need to perform any input source switching operation during the video conference, and only needs to continuously receive the local video device to send.
  • the video output data of the current camera is not need to perform any operation on the video conference software, that is, the video conference software does not need to perform any input source switching operation during the video conference, and only needs to continuously receive the local video device to send.
  • transmitting video output data to a remote video device means that the local video conferencing software sends the video output data to the video conferencing software of the remote video device.
  • the video output data is transmitted to the processor to enable the processor to display the video output data on the desktop of the remote video device, so that the remote participant can watch the video in real time.
  • Output Data there is no need for any secondary development of the video conferencing software.
  • video conferencing software based on open platforms such as Windows or Android can achieve the above operations.
  • the remote video device can synchronously display the operation.
  • FIG. 1b is a schematic diagram of a video conference system.
  • the local video device 11 can obtain the screen data of the desktop of the smart device 13 through the screen device 12 . Further, after the local video device 11 establishes a connection with a remote video device (not shown), if the local participant needs to share a certain text document, the text document only needs to be opened and displayed in the smart device 13. At this time, the screen device 12 captures the data showing the text document and sends the data to the local video device 11 as the screen data of the preset desktop.
  • the local video device 11 After receiving the screen data of the preset desktop, the local video device 11 converts the screen data of the preset desktop into the video output data output by the camera in the current video conference connection, and uses the video output data as an input source of the video conference software to The video conferencing software is caused to send the video output data to the remote video device to ensure that the remote video device displays the screen data of the desktop of the smart device 13 in real time. Further, when the local participant operates the text document on the smart device 13, the remote video device can synchronously display the operation. At this time, the video conferencing software in the local video device 11 does not need to make any changes, and only needs to continuously acquire the video output data of the current camera. At the same time, the video conferencing software in the remote video device does not need to be changed, and only needs to continuously receive the video output data.
  • the screen data of the preset desktop acquired by the local video device is converted into the video output data of the current camera, wherein the preset desktop screen data is The captured data of the preset desktop is captured, and the video output data is transmitted to the remote video device, so as to implement a technical solution for real-time display of the video output data by the remote video device, which realizes that during the video conference, there is no need to Local video device and remote view
  • the screen data of the preset desktop of the non-local participant video data can be displayed in real time in the remote video device.
  • the local participant needs to send the screen data of the preset desktop acquired by the local video device, and needs to send the participant image captured by the actual camera, that is, the actual video data acquired by the actual camera. Send to the remote video device along with the screen data of the preset desktop.
  • the embodiment also provides that the actual video data acquired by the actual camera is combined with the screen data of the preset desktop acquired by the local video device as a video conference connection.
  • FIG. 1c The technical solution of the video output data of the middle camera is referred to FIG. 1c, which is specifically:
  • S102 Combine the actual video data captured by the actual camera with the screen data of the preset desktop acquired by the local video device.
  • the screen data of the desktop when the screen data of the desktop is preset in the local video device, the actual video data captured by the actual camera is acquired synchronously. Further, the screen data of the preset desktop is merged with the actual video data, and the merging process is specifically: combining the screen data of the preset desktop and the actual video data according to the display style.
  • the display style may be selected as the display ratio of the screen data of the preset desktop and the actual video data in the same display screen.
  • the mixed data includes both the screen data of the current preset desktop and the actually captured video data.
  • the processing method of the mixed data is the same as the processing method of the screen data of the preset desktop in S120, and details are not described herein.
  • the remote video device can display the actual shooting data and the screen data of the preset desktop in real time, and does not need to perform any operations on the video conferencing software in the local video device and the remote video device.
  • FIG. 2a is a flowchart of a video acquisition method according to Embodiment 2 of the present invention. This embodiment is embodied on the basis of the above embodiment. Specifically, referring to FIG. 2a, the video acquiring method provided in this embodiment specifically includes:
  • acquiring the screen data of the preset desktop specifically includes the following solutions:
  • Solution 1 Obtain the screen data of the preset desktop sent by the screen device.
  • the screen device is respectively connected to the local video device and the at least one smart device, wherein the connection mode may be a wired connection or a wireless connection, for example, the screen device is wirelessly connected to the local video device, and is wired to the at least one smart device.
  • the preset desktop is a desktop of at least one smart device connected to the screen device.
  • the screen device can acquire the screen data of the desktop of the smart device in real time and send the screen data to the local video conference.
  • the screen data is a picture format
  • the screen device acquires picture data of one frame and one frame, and sends the picture data of one frame and one frame to the local video device.
  • the screen device can only acquire the screen data of the desktop of one smart device at a time.
  • the local terminal determines the smart terminal that transmits the screen data, and operates the smart terminal to enable the screen device to acquire the screen data of the smart terminal.
  • the receiving software of the screen device is installed in the local video device to implement the screen data sent by the receiving screen device.
  • the advantage of setting up a screen device is that when a local participant switches to a smart device, there is no need to do anything with the local video device or video conferencing software. At the same time, it is not necessary to copy the data that needs to be shared in the smart device to the local video device, especially when the local video device is a public device, ensuring data security.
  • the local video device may selectively display the screen data on the local display surface according to actual needs.
  • the screen data can be displayed in full screen, or other content can be displayed simultaneously when the screen data is displayed.
  • the wireless connection involved in the foregoing process may be: wireless connection mode such as wireless local area network, Bluetooth or infrared.
  • the wired connection can be: USB port connection or IEEE 1394 port connection.
  • Solution 2 Obtain screen data of the desktop sent by the at least one smart device connected to the local video device as the screen data of the preset desktop.
  • the smart device is configured to capture the display content of the current desktop as the screen data of the preset desktop, and send the screen data to the function in the local video device.
  • the smart device can capture the display content of the current desktop in real time and encode the screen data, and then send the screen data to the local video device.
  • the local video device decodes the received screen data and obtains the decoded data as the screen data of the preset desktop.
  • the local video device may physically connect at least one smart device and acquire screen data of at least one smart device.
  • the plurality of screen data may be combined according to a pre-agreed display rule to obtain screen data of the preset desktop.
  • the display rule may be a display position or a display ratio of the plurality of screen data in the current desktop.
  • the local video device can also directly obtain the screen data of the desktop as the standby. Display data sent.
  • Such a scheme is applicable to a scenario in which a local video device stores data that local participants need to share. At this point, the data can be opened and displayed directly in the local video device. This type of scenario also applies to scenarios where local participants need to present data to other local participants when they share data with remote participants. At this time, after acquiring the screen data sent by the screen device, the data may be displayed in the local device, and the screen data of the desktop is obtained as the screen data of the preset desktop.
  • the S220 can also be executed in front of the S210, that is, the screen data of the preset desktop in the local video device is obtained first, and then the video conference connection between the local video device and the remote video device is established.
  • the data interface when the data is written into the virtual camera is preset.
  • the specific convention of the data interface is not limited in this embodiment.
  • the convention may be a shared memory.
  • the receiving software of the screen device and the virtual camera can exchange data through a preset data interface.
  • the screen device encodes the screen data, and sends the encoded data to the local video device through the wireless sending port.
  • the specific coding mode is not limited in this embodiment, and only needs to satisfy the wireless communication protocol.
  • the screen receiving device of the local video device receives the data, decodes the data, obtains the screen data of the preset desktop, and passes the screen data of the preset desktop through the shared memory according to the agreed rules of the data interface. The way is written to the virtual camera.
  • the screen data of the preset desktop is converted into video output data by the virtual camera, wherein the video output data can be regarded as data of the virtual camera "shooting".
  • the virtual camera is used as the camera of the current "shooting" video
  • the video output data is used as the output data of the current camera.
  • format conversion processing is performed on the screen data of the preset desktop. That is, without changing the display content, the screen of the preset desktop is written into the virtual camera, so that the virtual camera converts the screen data of the preset desktop into the output format of the virtual camera, so as to realize the virtual camera to the preset desktop. "Shooting" of screen data.
  • the data in the virtual camera is called as the video output data captured by the current camera to be input to the video conferencing software.
  • the screen data of the preset desktop can be directly converted, the data conforming to the virtual camera output format is obtained, and the data is directly written into the virtual camera. At this time, the virtual camera does not need to perform the format conversion operation. During the video conference, the written data can be directly output as video output data.
  • S250 Send the video output data to the remote video device, so that the remote video device displays the video output data in real time.
  • the local video device is an interactive conference tablet 21 configured with a Windows host system and at least one camera installed. Further, the interactive conference tablet 21 is a touchable tablet and is larger than 50 inches. In general, the interactive conference tablet 21 can be placed in a conference room as a public device. Specifically, the interactive conference tablet 21 is provided with receiving software of the screen device, a virtual camera, and third party video conferencing software.
  • the interactive conference tablet 21 is wirelessly connected to the screen device 22, and the screen device 22 is wired to the notebook computer 23.
  • the notebook computer 23 is a holding device of a local participant.
  • the screen data of the current desktop of the notebook computer 23 captured by the screen device 22 is picture data.
  • the screen device 22 collects screen data displaying the text document to obtain image data. Further, the picture data is video encoded and sent to the interactive conference tablet 21. After receiving the data through the receiving software of the screen device, the interactive conference tablet 21 decodes the screen data of the preset desktop, and writes the screen data of the preset desktop into the virtual camera according to a preset data interface. In order to format the display data to be sent by the virtual camera.
  • the format converted data in the virtual camera is retrieved as the video output data of the current camera and sent to the third party video conferencing software, so that the third party video conferencing software sends the video output data to the video conference of the remote video device 24.
  • the desktop display content of the notebook computer 23 and the at least one remote video device 24 are the same, and are the desktop display data of the text document, and the interactive conference tablet 21 selectively displays the desktop display data according to actual needs.
  • the text document is not stored in the interactive conference tablet 21 and the at least one remote video device 24. When the video conference ends, the interactive conference tablet 21 and the at least one remote video device 24 are not saved.
  • the text document further guarantees the security of the text document. Further, if an operation such as turning a page, sliding display, or marking the displayed text document is required, only the local participant needs to perform a corresponding operation on the laptop 23 end.
  • the remote video device After establishing a video conference connection between the local video device and the at least one remote video device, acquiring screen data of the preset desktop, and writing the screen data of the preset desktop to the virtual camera through the data interface, so as to make the virtual camera Converting the screen data of the preset desktop to the video output data of the current camera connected to the video conference and transmitting the data to the remote video device, so that the remote video device displays the corresponding display data in real time during the video conference, without local participation Text data, video data, slide data, and picture data that need to be displayed are sent to remote participants in advance, so that real-time display can be manually performed by remote participants.
  • the video conferencing software does any changes or secondary development.
  • FIG. 3 is a flowchart of a video acquisition method according to Embodiment 3 of the present invention. This embodiment is embodied on the basis of the above embodiment. Specifically, referring to FIG. 3, the video acquiring method provided in this embodiment includes:
  • the video switching instruction is an instruction to switch the input source of the video conferencing software, and may be sent by the local participant through the local video device or the control device associated with the local video device.
  • the specific issuance form is not limited in this embodiment.
  • the screen data of the preset desktop obtained is defaulted to the data obtained by the priority "shooting" during the video conference. If a video switching instruction is received, it is determined that it is necessary to switch the camera that is currently “shooting", that is, the data of "shooting” in the other camera as the video output data.
  • the setting of the video switching instruction may be to switch the data obtained by the current camera "shooting" from the screen data of the preset desktop to the actual shooting data.
  • the virtual camera when the virtual camera is set in the local video device, at least one virtual camera may be set, and each virtual camera has corresponding data.
  • the video switching instruction may also be switched between the virtual cameras. Command, at this time, you can number each virtual camera and the actual camera, and add the number to be switched to the current camera in the video switching command. Now the camera is switched.
  • the actual camera is used as the camera currently performing shooting
  • the actual video data captured by the actual camera is taken as video output data
  • the video output data is sent to the video conferencing software.
  • the local video device replaces the current camera by itself, that is, the video conferencing software only needs to continuously receive the video output data of the current camera.
  • the actual number of cameras may be at least one.
  • the actual video data may default to acquiring synthetic data captured by all actual cameras.
  • only the shooting data of a single actual camera may be obtained.
  • each actual camera may be numbered, and a corresponding number is added in the video switching instruction, or after receiving the video switching instruction, It is suggested that there are currently multiple actual cameras, and the local participants select to obtain the shooting data of one of the actual cameras, or acquire the shooting data of at least two actual cameras.
  • S360 Send the video output data to the remote video device, so that the remote video device displays the video output data in real time.
  • S360 may be directly executed after S330, and S340 is simultaneously executed during the execution of S360 until the end of the video conference.
  • the screen data of the preset desktop is used as the video output data obtained by the current camera “shooting”.
  • the actual video data captured by the actual camera may also be defaulted to video output data, and when the switching instruction is received, the screen data of the preset desktop is switched to the video output data.
  • the screen data of the preset desktop and the actual video data can be executed multiple times according to the actual needs of the local participants. Switch operations and do not need to do anything with the video conferencing software each time.
  • the screen data of the preset desktop is format converted, and if no video switching instruction is received, the conversion will be performed.
  • the screen data of the preset desktop is used as the video output data. If the video switching instruction is received, the actual video data captured by the actual camera is used as the video output data, and the video output data is sent to the remote video device. Switch between the screen data of the preset desktop and the actual video data without performing any operations on the video conferencing software. At the same time, it is not necessary to pre-send the text data, video data, slide data, and picture data that the local participants need to display to the remote participants, so that the remote participants can manually realize the real-time display.
  • FIG. 4 is a schematic structural diagram of a video acquiring apparatus according to Embodiment 4 of the present invention.
  • the video obtaining apparatus in this embodiment includes: a connection establishing module 401, a data converting module 402, and a data sending module 403.
  • the connection establishing module 401 is configured to establish a video conference connection between the local video device and the at least one remote video device
  • the data conversion module 402 is configured to convert the screen data of the preset desktop acquired by the local video device into a video conference connection camera.
  • Video output data, the screen data of the preset desktop is data obtained by capturing the display screen of the preset desktop;
  • the data sending module 403 is configured to send the video output data to the remote video device to enable remote The video device displays the video output data in real time.
  • the screen data of the preset desktop acquired by the local video device is converted into the video output data of the current camera, wherein the preset desktop screen is The data is obtained by grabbing the display screen of the preset desktop. And transmitting the video output data to the remote video device to implement a real-time display of the video output data in the remote video device, which is implemented in the video conference without the need for the local video device and the remote video device.
  • the screen data of the preset desktop of the non-local participant video data can be displayed in real time in the remote video device.
  • the method further includes: a data obtaining module, configured to acquire screen data of a preset desktop sent by the screen device before or after establishing a video conference connection between the local video device and the at least one remote video device, Setting the desktop as a desktop of at least one smart device connected to the screen device; or, for acquiring at least one smart device connected to the local video device before or after establishing a video conference connection of the local video device and the at least one remote video device
  • the screen data of the sent desktop is used as the screen data of the preset desktop.
  • the data conversion module 402 includes: a writing unit, configured to write screen data of the preset desktop acquired by the local video device into the virtual camera through a preset data interface; and a conversion unit, configured to The virtual camera is used to convert the screen data of the preset desktop to obtain the video output data of the camera in the video conference connection.
  • the method further includes: a data switching module, configured to convert the screen data of the preset desktop acquired by the local video device into video output data of the camera in the video conference connection, and after confirming that the video switching instruction is received Obtain the actual video data captured by the actual camera of the local video device, and use the actual video data as the video output data of the camera in the video conference connection.
  • a data switching module configured to convert the screen data of the preset desktop acquired by the local video device into video output data of the camera in the video conference connection, and after confirming that the video switching instruction is received Obtain the actual video data captured by the actual camera of the local video device, and use the actual video data as the video output data of the camera in the video conference connection.
  • the data conversion module 402 includes: a data merging unit, configured to combine actual video data captured by an actual camera and screen data of a preset desktop acquired by a local video device; and a mixed data conversion unit for merging Converting the mixed data to a video conference connection Head video output data.
  • the video obtaining apparatus provided by the embodiment of the present invention may be used to perform the video acquiring method provided by any of the foregoing embodiments, and has corresponding functions and beneficial effects.
  • FIG. 5 is a schematic structural diagram of a video device according to Embodiment 5 of the present invention.
  • the video device includes a processor 50, a memory 51, a camera 52, a communication device 53, an input device 54, and an output device 55.
  • the number of processors 50 in the video device may be one or more, in FIG. Taking a processor 50 as an example; the number of cameras 52 in the video device may be one or more, and one camera 52 is taken as an example in FIG. 5; the processor 50, the memory 51, the camera 52, the communication device 53, in the video device,
  • the input device 54 and the output device 55 may be connected by a bus or other means, as exemplified by a bus connection in FIG.
  • the memory 51 is used as a computer readable storage medium, and can be used to store a software program, a computer executable program, and a module, such as a program instruction/module corresponding to the video acquisition method in the embodiment of the present invention (for example, connection establishment in a video acquisition device) Module 401, data conversion module 402, and data transmission module 403).
  • the processor 50 executes various functional applications and data processing of the video device by executing software programs, instructions, and modules stored in the memory 51, that is, implementing the video acquisition method described above.
  • the memory 51 may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal, and the like. Further, the memory 51 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, or other nonvolatile solid state storage device. In some examples, memory 51 may further include memory remotely located relative to processor 50, which may be connected to the video device over a network. An example of the above network These include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the camera 52 is an actual camera for capturing a participant's picture during a video conference and outputting actual video data.
  • the communication device 53 is configured to connect to the at least one remote video device and send the video output data to the at least one remote video device.
  • the communication device 53 is further configured to connect to the screen device and obtain the screen data of the preset desktop sent by the screen device.
  • Input device 54 can be used to receive input digital or character information and to generate key signal inputs related to user settings and function control of the video device.
  • the output device 55 may include a display device such as a display screen.
  • the video device provided by the embodiment of the present invention can perform the video obtaining method provided by any of the foregoing embodiments, and has corresponding functions and beneficial effects.
  • the sixth embodiment of the present invention further provides a storage medium including computer executable instructions for executing a video acquisition method when executed by a computer processor, the video acquisition method comprising:
  • the video output data is sent to the remote video device to enable the remote video device to display the video output data in real time.
  • a storage medium containing computer executable instructions provided by the embodiments of the present invention the computer executable instructions are not limited to the video acquisition method operations as described above, and may also perform any of the present invention. Related operations in the video acquisition method provided by the embodiment have corresponding functions and beneficial effects.
  • the present invention can be implemented by software and necessary general hardware, and can also be implemented by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk of a computer.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • FLASH FLASH
  • hard disk or optical disk etc., including a number of instructions to make a computer device (can be a personal computer)
  • the server, or network device, etc.) performs the video acquisition method described in various embodiments of the present invention.
  • the included units and modules are only divided according to functional logic, but are not limited to the foregoing division, as long as the corresponding functions can be implemented;
  • the specific names of the functional units are also for convenience of distinguishing from each other and are not intended to limit the scope of the present invention.

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Abstract

本发明公开了一种视频获取方法、装置、视频设备及存储介质，其中，该方法包括：建立本地视频设备与至少一个远程视频设备的视频会议连接；将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，预设桌面的屏幕数据为对预设桌面的显示画面进行抓取得到的数据；将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。采用上述方法可以解决现有视频会议过程中，使远程视频设备实时显示共享数据的处理过程过于繁琐的技术问题。

Description

视频获取方法、装置、视频设备及存储介质 技术领域
本发明涉及多媒体技术领域，尤其涉及一种视频获取方法、装置、视频设备及存储介质。
背景技术
随着多媒体技术的发展，视频会议已经成为了跨地区公司的主要会议形式。一般而言，不同区域的与会者可以通过本地的视频设备进行视频连接，以实现视频会议。
举例而言，如果本地与会者想要对某个文档、视频、幻灯片或者图片等数据在视频会议中进行说明，通常需要提前将上述数据通过邮件等方式发送给远程的与会者。以在视频会议过程中，由本地与会者和远程与会者分别打开该数据，并由本地与会者告知远程与会者数据显示位置，以使远程与会者手动调整数据显示位置，进而实现在远程视频设备中实时显示该数据。或者，预先对视频设备中安装的视频会议软件进行二次开发，以使视频会议软件可以对上述显示的数据实时进行视频编码，进而将视频编码后的数据发送至远程视频设备中，以实现在远程视频设备实时显示该数据。如果没有预先对视频会议软件进行二次开发，那么上述方案将无法执行。
发明内容
有鉴于此，本发明实施例提供一种视频获取方法、装置、视频设备及存储 介质，以解决现有视频会议过程中，使远程视频设备实时显示共享数据的处理过程过于繁琐的技术问题。
第一方面，本发明实施例提供了一种视频获取方法，包括：
建立本地视频设备与至少一个远程视频设备的视频会议连接；
将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；
将所述视频输出数据发送至所述远程视频设备中，以使所述远程视频设备实时显示所述视频输出数据。
第二方面，本发明实施例还提供了一种视频获取装置，包括：
连接建立模块，用于建立本地视频设备与至少一个远程视频设备的视频会议连接；
数据转换模块，用于将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；
数据发送模块，用于将所述视频输出数据发送至所述远程视频设备中，以使所述远程视频设备实时显示所述视频输出数据。
第三方面，本发明实施例还提供了一种视频设备，包括：
一个或多个处理器；
存储装置，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本发明实施例所述的视频获取方法。
第四方面，本发明实施例还提供了一种计算机可读存储介质，其上存储有 计算机程序，该程序被处理器执行时实现如本发明实施例所述的视频获取方法。
上述提供的视频获取方法、装置、视频设备及存储介质，通过在本地视频设备与至少一个远程视频设备建立视频会议连接后，将本地视频设备获取的预设桌面的屏幕数据转换为当前摄像头的视频输出数据，其中，预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据，并将该视频输出数据传输至远程视频设备中，以实现在远程视频设备中实时显示该视频输出数据的技术方案，实现了在视频会议时，无需对本地视频设备和远程视频设备中的视频会议软件做任何改动或者二次开发，便可以实现将非本地与会者视频数据的预设桌面的屏幕数据在远程视频设备中实时显示。同时，无需将本地与会者需要显示的文本数据、视频数据、幻灯片数据以及图片数据等预先发送给远程与会者，以由远程与会者手动实现实时显示。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：
图1a为本发明实施例一提供的一种视频获取方法的流程图；
图1b为一种视频会议系统示意图；
图1c为本发明实施例一提供的一种视频获取方法的流程图；
图2a为本发明实施例二提供的一种视频获取方法的流程图；
图2b为一种视频会议系统应用场景的示意图；
图2c为视频会议系统的数据处理流程图；
图3为本发明实施例三提供的一种视频获取方法的流程图；
图4为本发明实施例四提供的一种视频获取装置的结构示意图；
图5为本发明实施例五提供的一种视频设备的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部内容。
实施例一
图1a为本发明实施例一提供的一种视频获取方法的流程图。本实施例提供的视频获取方法适用于对至少两个远程的视频设备进行视频会议的情形。本实施例提供的视频获取方法可以由视频会议装置执行，该视频会议装置可以通过软件和/或硬件的方式实现，并集成在本地视频设备中。
参考图1a，本实施例提供的视频获取方法具体包括：
S110、建立本地视频设备与至少一个远程视频设备的视频会议连接。
在本实施例中，视频会议为不在同一地点的至少两个视频设备通过互联网交互并进行视频连接，以保证至少两个不在同一地点的与会者可以通过视频设备进行正常的会议沟通。可选的，上述视频设备中均安装有基于Windows或android等开放平台的视频会议软件。具体的，当前主讲或者主持的与会者使用的视频设备为本地视频设备，其他与当前本地视频设备连接的视频设备为远程视频设备。具体的，本地视频设备设置有至少一个实际摄像头。远程视频设备可以与本地视频设备为相同的视频设备也可以为不同的视频设备。
进一步的，本地视频设备与远程视频设备建立视频会议连接是指本地视频设备中的视频会议软件与远程视频设备中的视频会议软件建立连接。其中，建 立连接的具体方式本实施例不作限定。
具体的，建立视频会议连接后，本地视频设备可以与远程视频设备进行视频数据的传输，其中，该视频数据均为符合视频协议以及视频格式的数据。
S120、将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据。
一般而言，预设桌面的屏幕数据与实际摄像头获取的实际视频数据并不相同。实际视频数据是实际摄像头拍摄的当前本地与会者所在的空间视频数据。相对的，预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据。可选的，预设桌面可以是本地视频设备的桌面，也可以是本地与会者操作的智能设备的桌面，其中，智能设备可以直接与本地视频设备连接，还可以通过中间设备与本地视频设备关联，其具体连接方式，本实施例不做限定。可选的，智能设备可以是智能手机、平板电报、笔记本电脑以及台式电脑等设备。进一步的，抓取显示画面是指对当前显示画面的每个像素点进行抓取操作，以得到与当前显示画面中显示内容相同的数据，该数据中包括各像素点的信息，当其他设备获取到该数据时，可以根据各像素点的信息确定预设桌面的显示画面。该数据的具体格式本实施例不做限定。例如，该数据可以为是图片格式，即对显示画面的每个像素点进行抓取操作生成与显示内容相同的图片数据，其类似于截图处理。显示内容可以是文本、幻灯片、图片以及视频等。典型的，在进行抓取操作时，可以设定抓取频率，并根据该抓取频率获取屏幕数据，以保证屏幕数据的准确性以及实效性。上述抓取的过程便可以认为是在视频会议场景下，对预设桌面的屏幕数据进行“拍摄”的过程。需要说明的是，在本实施例中，预设桌面的屏幕数据默认为对预设桌面的全部显示画面进行抓取后得到的数据。在实际应用中，预设桌面的屏幕数据也可以是对预设桌面中部分显示画 面进行抓取后得到的数据。
可选的，当本地视频设备将自身桌面作为预设桌面时，本地与会者可以通过操作本地视频设备或者与本地视频设备关联的控制设备(如智能笔、遥控器)等设备实现对屏幕数据的翻页、滑动等操作。
还可选的，当本地视频设备将与本地视频设备关联的智能设备的桌面作为预设桌面时，本地与会者可以通过控制智能终端实现对屏幕数据的翻页、滑动等操作。进一步的，本地视频设备获取预设桌面的屏幕数据后，可以在自身显示屏上显示该屏幕数据，也可以不显示该待屏幕数据。在本实施例中，以预设桌面为智能终端的桌面进行示例性的描述。由于在实际应用中，本地与会者可能需要在多个智能设备间进行切换，那么本地视频设备需要在多个智能设备间对预设桌面的屏幕数据的输入源进行切换，此时，为了简化切换过程，可以通过中间设备向本地视频设备传输智能终端的桌面的屏幕数据。可选的，该中间设备优选为传屏设备。传屏设备是一类可以将智能设备的屏幕数据实时传输到本地视频设备中的设备。此时，该传屏设备与至少一个智能设备有线或无线连接，并抓取至少一个智能设备桌面的显示画面作为预设桌面的屏幕数据发送至本地视频设备中。当本地与会者在多个智能设备间进行切换时，仅需切换智能设备与传屏设备的连接，而本地视频设备无需切换输入源，仅需持续获取传屏设备发送的预设桌面的屏幕数据。一般而言，智能设备与传屏设备间连接的切换过程远简单于本地视频设备与智能设备间连接的切换过程。
具体的，对预设桌面的屏幕数据进行格式转换，以使转换后的数据与实际摄像头输出的数据格式相同，且该格式的数据为视频会议软件支持的输入源。进一步的，将格式转换后的数据作为视频输出数据。其中，视频输出数据可以被认为是视频会议连接中当前使用的摄像头“拍摄”后输出的数据。
可选的，预先在本地视频设备中安装虚拟摄像头，利用该虚拟摄像头对预设桌面的屏幕数据进行格式转换，以得到视频输出数据。其中，虚拟摄像头是一类可以模拟真实摄像头的应用软件。该虚拟摄像头可以是虚拟通用串行总线(Universal Serial Bus，USB)设备，还可以是基于DirectShow的SourceFilter。其中，DirectShow是一种基于组件对象模型(Component Object Model，COM)的流媒体处理的开发包，Source Filter是一种视频捕获方法。一般而言，可以输出任何一种视频会议软件所支持的输入源的应用软件都可以称为虚拟摄像头。可选的，本地视频设备的虚拟摄像头与实际摄像头输出的数据格式相同，且视频会议软件支持该格式的数据。
可选的，当预设桌面的屏幕数据作为视频输出数据时，如果本地与会者想要传输实际摄像头拍摄的与会者视频，那么可以直接进行摄像头切换，此时，本地视频设备将实际摄像头拍摄的实际视频数据切换为当前摄像头拍摄的视频输出数据输入至视频会议软件。需要说明的是，在上述切换过程中，无需本地视频设备对视频会议软件执行任何操作，即视频会议软件在视频会议过程中无需执行任何输入源的切换操作，仅需持续接收本地视频设备发送的当前摄像头的视频输出数据。
S130、将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
示例性的，将视频输出数据发送至远程视频设备中是指本地的视频会议软件将视频输出数据发送至远程视频设备的视频会议软件中。当远程视频设备的视频会议软件接收到视频输出数据后，将视频输出数据传送给处理器以使处理器在远程视频设备的桌面上显示该视频输出数据，进而使远程与会者可以实时观看该视频输出数据。上述过程中，无需对视频会议软件进行任何的二次开发， 当前基于Windows或者android等开放平台的视频会议软件均可以实现上述操作。
进一步的，本地与会者对当前桌面显示数据的内容进行操作时，远程视频设备可以同步显示出该操作。
本实施例适用的应用场景示例：
图1b为一种视频会议系统示意图。其中，本地视频设备11可以通过传屏设备12获取智能设备13桌面的屏幕数据。进一步的，当本地视频设备11与远程视频设备(图未示)建立连接后，本地与会者如果需要共享某个文本文档，则只需在智能设备13中打开并显示该文本文档。此时，传屏设备12抓取显示有该文本文档的数据后将该数据作为预设桌面的屏幕数据发送给本地视频设备11。本地视频设备11接收到预设桌面的屏幕数据后，将预设桌面的屏幕数据转换为当前视频会议连接中摄像头输出的视频输出数据，并将该视频输出数据作为视频会议软件的输入源，以使视频会议软件将该视频输出数据发送至远程视频设备中，保证远程视频设备实时显示智能设备13桌面的屏幕数据。进一步的，本地与会者在智能设备13上对文本文档进行操作时，远程视频设备可以同步显示该操作。此时，本地视频设备11中的视频会议软件无需做任何的改变，只需持续获取当前摄像头的视频输出数据。同时，远程视频设备中的视频会议软件也无需做任何的改变，只需持续接收视频输出数据。
综上，通过在本地视频设备与至少一个远程视频设备建立视频会议连接后，将本地视频设备获取的预设桌面的屏幕数据转换为当前摄像头的视频输出数据，其中，预设桌面的屏幕数据为对预设桌面的显示画面进行抓取得到的数据，并将该视频输出数据传输至远程视频设备中，以实现远程视频设备实时显示视频输出数据的技术方案，实现了在视频会议时，无需对本地视频设备和远程视 频设备中的视频会议软件做任何改动或者二次开发，便可以实现将非本地与会者视频数据的预设桌面的屏幕数据在远程视频设备中实时显示。同时，无需将本地与会者需要显示的文本数据、视频数据、幻灯片数据以及图片数据等预先发送给远程与会者，以由远程与会者手动实现实时显示。
进一步的，考虑到这样一类应用场景：本地与会者既需要发送本地视频设备获取的预设桌面的屏幕数据，又需要发送实际摄像头拍摄的与会者画面，即需要将实际摄像头获取的实际视频数据与预设桌面的屏幕数据一同发送至远程视频设备。为了满足上述应用场景且仍然无需对本地的视频应用软件进行任何操作，本实施例中还提出了将实际摄像头获取的实际视频数据与本地视频设备获取的预设桌面的屏幕数据一同作为视频会议连接中摄像头的视频输出数据的技术方案，参考图1c，其具体为：
S101、建立本地视频设备与至少一个远程视频设备的视频会议连接。
S102、合并实际摄像头拍摄的实际视频数据和本地视频设备获取的预设桌面的屏幕数据。
示例性的，在获取本地视频设备中预设桌面的屏幕数据时，同步获取实际摄像头拍摄的实际视频数据。进一步的，将预设桌面的屏幕数据与实际视频数据进行合并，该合并过程具体为：根据显示样式合并同一获取时刻的预设桌面的屏幕数据与实际视频数据。其中，显示样式可选为同一显示画面中预设桌面的屏幕数据和实际视频数据的显示比例。混合数据中既包括当前预设桌面的屏幕数据还包括实际拍摄的视频数据。
S103、将合并后的混合数据转换为视频会议连接中摄像头的视频输出数据。
此时，对混合数据的处理方式与S120中对预设桌面的屏幕数据的处理方式相同，在此不做赘述。
S104、将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
具体的，远程视频设备可以实时显示实际拍摄数据和预设桌面的屏幕数据，并且无需对本地视频设备和远程视频设备中的视频会议软件执行任何的操作。
实施例二
图2a为本发明实施例二提供的一种视频获取方法的流程图。本实施例是在上述实施例的基础上进行具体化。具体的，参考图2a，本实施例提供的视频获取方法具体包括：
S210、建立本地视频设备与至少一个远程视频设备的视频会议连接。
S220、获取预设桌面的屏幕数据。
在本实施例中，获取预设桌面的屏幕数据具体包括下述方案：
方案一、获取传屏设备发送的预设桌面的屏幕数据。
具体的，传屏设备分别与本地视频设备和至少一个智能设备连接，其中，该连接方式可以为有线连接或者无线连接，例如，传屏设备与本地视频设备无线连接，与至少一个智能设备有线连接。进一步的，预设桌面为与传屏设备连接的至少一个智能设备的桌面。在与智能设备连接时，传屏设备可以实时获取智能设备的桌面的屏幕数据并将该屏幕数据发送至本地视频会议中。可选的，当屏幕数据为图片格式时，传屏设备获取一帧一帧的图片数据，并将一帧一帧的图片数据发送至本地视频设备中。一般而言，传屏设备同一时刻仅能获取一个智能设备的桌面的屏幕数据。当传屏设备与多个智能设备连接时，可以由本地与会者决定传输屏幕数据的智能终端，并对该智能终端进行操作，以使传屏设备获取该智能终端的屏幕数据。
进一步的，建立传屏设备与本地视频设备的连接时，在本地视频设备中安装传屏设备的接收软件，以实现接收传屏设备发送的屏幕数据。
设置传屏设备的好处是当本地与会者切换使用的智能设备时，无需对本地视频设备或者视频会议软件做任何操作。同时，无需将智能设备中需要共享的数据复制到本地视频设备中，尤其当本地视频设备为公共设备时，保证了数据安全性。
可选的，本地视频设备接收到屏幕数据后，可以根据实际需要在本地显示面上选择性的显示该屏幕数据。在显示屏幕数据时，可以全屏显示该屏幕数据，也可以在显示屏幕数据时，同时显示其他的内容。
可选的，上述过程中涉及的无线连接均可以为：无线局域网、蓝牙或红外等无线连接方式。有线连接可以为：USB插口连接或IEEE 1394插口连接。
方案二、获取与本地视频设备连接的至少一个智能设备发送的自身桌面的屏幕数据作为预设桌面的屏幕数据。
具体的，智能设备设定有抓取当前的桌面的显示内容作为预设桌面的屏幕数据，并将屏幕数据发送至本地视频设备中的功能。在视频会议连接期间，智能设备可以实时的抓取当前桌面的显示内容并编码得到屏幕数据，进而将屏幕数据发送至本地视频设备中。本地视频设备将接收的屏幕数据进行解码，并将解码后得到数据作为预设桌面的屏幕数据。其中，本地视频设备可以物理连接至少一个智能设备，并获取至少一个智能设备的屏幕数据。当获取多个智能设备的屏幕数据时，可以按照预先约定的显示规则对多个屏幕数据进行组合，以得到预设桌面的屏幕数据。其中，显示规则可以是多个屏幕数据在当前桌面中的显示位置或者显示比例等。
需要说明的是，本地视频设备还可以直接获取自身桌面的屏幕数据作为待 发送的显示数据。此类方案适用于本地视频设备中存储有本地与会者需要共享的数据的场景。此时，可以直接在本地视频设备中打开并显示该数据。此类方案还适用于当本地与会者向远程与会者共享数据时，还需要向本地其他与会者展示该数据的场景。此时，当获取到传屏设备发送的屏幕数据后，可以先在本地设备中显示该数据，并获取自身桌面的屏幕数据作为预设桌面的屏幕数据。
需要说明的是，S220也可以执行在S210的前面，即先获取本地视频设备中预设桌面的屏幕数据，再建立本地视频设备与远程视频设备的视频会议连接。
S230、将本地视频设备获取的预设桌面的屏幕数据通过预先设定的数据接口写入虚拟摄像头。
具体的，预先设定向虚拟摄像头中写入数据时的数据接口，其中，数据接口的具体约定规则本实施例不作限定，例如，约定规则可以是共享内存的方式。
举例而言，当本地视频设备与传屏设备无线连接时，传屏设备的接收软件与虚拟摄像头之间可以通过预先设定的数据接口交换数据。进一步的，传屏设备在获取到智能终端桌面的屏幕数据后，对该屏幕数据进行编码，并通过无线发送端口向本地视频设备发送编码后的数据。其中，具体的编码方式本实施例不作限定，仅需满足无线通信协议即可。再进一步的，本地视频设备的传屏设备接收软件接收到数据，对数据进行解码，以得到预设桌面的屏幕数据，并按照数据接口的约定规则，将预设桌面的屏幕数据通过共享内存的方式写入虚拟摄像头中。
S240、利用虚拟摄像头转换预设桌面的屏幕数据，以得到视频会议连接中摄像头的视频输出数据。
进一步的，通过虚拟摄像头将预设桌面的屏幕数据转换为视频输出数据，其中，该视频输出数据可以被认为是虚拟摄像头“拍摄”的数据。在视频会议 连接时，将虚拟摄像头作为当前“拍摄”视频的摄像头，将视频输出数据作为当前摄像头的输出数据。
具体的，对预设桌面的屏幕数据进行格式转换处理。即在不改变显示内容的前提下，将预设桌面的屏幕写入虚拟摄像头中，以使虚拟摄像头将预设桌面的屏幕数据转换为虚拟摄像头的输出格式，以实现虚拟摄像头对预设桌面的屏幕数据的“拍摄”。在视频会议连接过程中，调用虚拟摄像头中的数据作为当前摄像头拍摄的视频输出数据输入至视频会议软件。
需要说明的是，也可以直接对预设桌面的屏幕数据进行格式转换，得到符合虚拟摄像头输出格式的数据，并将该数据直接写入虚拟摄像头中，此时，虚拟摄像头无需执行格式转换的操作，在视频会议过程中，可以直接输出写入的数据作为视频输出数据。
S250、将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
本实施例适用应用场景示例：
参考图2b，设定，本地视频设备为交互式会议平板21，其配置有Windows主机系统，且安装有至少一个摄像头。进一步的，该交互式会议平板21为可触控的平板，且大于50寸。一般而言，该交互式会议平板21可以作为公共设备放置在会议室中。具体的，该交互式会议平板21中安装有传屏设备的接收软件、虚拟摄像头以及第三方的视频会议软件。
进一步的，交互式会议平板21与传屏设备22无线连接，传屏设备22与笔记本电脑23有线连接。其中，笔记本电脑23为本地与会者的持有设备。传屏设备22抓取的笔记本电脑23当前桌面的屏幕数据为图片数据。
当交互式会议平板21与至少一个远程视频设备24通过互联网建立视频会 议连接后，本地与会者想要共享一份文本文档时，本地与会者只需在笔记本电脑23中打开该文本文档。参考图2c，其为视频会议系统的数据处理流程图。具体的，传屏设备22采集显示有该文本文档的屏幕数据得到图片数据。进一步的，对图片数据进行视频编码并发送至交互式会议平板21。交互式会议平板21通过传屏设备的接收软件接收到数据后，对其进行解码以得到预设桌面的屏幕数据，并按照预先设定的数据接口将预设桌面的屏幕数据写入虚拟摄像头中，以使虚拟摄像头对待发送的显示数据进行格式转换。进一步的，调取虚拟摄像头中格式转换后的数据作为当前摄像头的视频输出数据并发送至第三方视频会议软件，以使第三方视频会议软件将该视频输出数据发送至远程视频设备24的视频会议软件中。此时，笔记本电脑23和至少一个远程视频设备24的桌面显示内容相同，均为该文本文档的桌面显示数据，交互式会议平板21根据实际需求选择性的显示该桌面显示数据。同时，交互式会议平板21和至少一个远程视频设备24中均未存储有该文本文档，当本次视频会议结束时，交互式会议平板21和至少一个远程视频设备24中均不会保存留该文本文档，进一步的保证了文本文档的安全性。进一步的，若需要对显示文本文档进行翻页、滑动显示或者标记等操作，则仅需本地与会者在笔记本电脑23端执行对应的操作。
综上，通过在建立本地视频设备与至少一个远程视频设备的视频会议连接后，获取预设桌面的屏幕数据，并将预设桌面的屏幕数据通过数据接口写入虚拟摄像头中，以使虚拟摄像头将该预设桌面的屏幕数据转换为本次视频会议连接的当前摄像头的视频输出数据并发送至远程视频设备中，以实现视频会议过程中远程视频设备实时显示相应的显示数据，无需将本地与会者需要显示的文本数据、视频数据、幻灯片数据以及图片数据等预先发送给远程与会者，以由远程与会者手动实现实时显示。同时，无需对本地视频设备和远程视频设备中 的视频会议软件做任何改动或者二次开发。
实施例三
图3为本发明实施例三提供的一种视频获取方法的流程图。本实施例是在上述实施例的基础上进行具体化。具体的，参考图3，本实施例提供的视频获取方法包括：
S310、获取预设桌面的屏幕数据。
S320、建立本地视频设备与至少一个远程视频设备的视频会议连接。
S330、将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据。
S340、确认是否接收到视频切换指令。若是，执行S350。否则，执行S360。
具体的，视频切换指令为切换视频会议软件的输入源的指令，其可以由本地与会者通过本地视频设备或者与本地视频设备关联的控制设备发出，具体的发出形式本实施例不做限定。
当前，将获取的预设桌面的屏幕数据默认为视频会议过程中优先“拍摄”得到的数据。如果接收到视频切换指令，则确定需要对当前进行“拍摄”的摄像头进行切换，即将另一个摄像头中“拍摄”的数据作为视频输出数据。在本实施例中，设定视频切换指令可以默认是将当前摄像头“拍摄”得到的数据由预设桌面的屏幕数据切换为实际拍摄数据。
可选的，在本地视频设备中设置虚拟摄像头时，可以设置至少一个虚拟摄像头，且每个虚拟摄像头中均有对应的数据，相应的，视频切换指令也可以是在各虚拟摄像头间进行切换的指令，此时，可以为每个虚拟摄像头以及实际摄像头进行编号，并在视频切换指令中加入准备切换为当前摄像头的编号，以实 现摄像头的切换。
S350、在确认接收到视频切换指令时，获取本地视频设备的实际摄像头拍摄的实际视频数据，并将实际视频数据作为视频会议连接中摄像头的视频输出数据。执行S360。
示例性的，将实际摄像头作为当前执行拍摄的摄像头，将实际摄像头拍摄的实际视频数据作为视频输出数据，并将该视频输出数据发送至视频会议软件中。其中，无需对该视频会议软件进行任何操作，由本地视频设备自行更换当前摄像头，即视频会议软件仅需持续接收当前摄像头的视频输出数据。
需要说明的是，实际摄像头的个数可以是至少一个，相应的，实际视频数据可以默认是获取全部实际摄像头拍摄的合成数据。可选的，也可以仅获取单个实际摄像头的拍摄数据，此时，可以对每个实际摄像头进行编号，并在视频切换指令中加入对应的编号，或者是，在接收到视频切换指令后，再提示当前存在多个实际摄像头，由本地与会者选择获取其中一个实际摄像头的拍摄数据，或者获取至少两个实际摄像头的拍摄数据。
S360、将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
可选的，也可以在S330后直接执行S360，并在执行S360的过程中同时执行S340，直到本次视频会议结束为止。
需要说明的是，在本实施例中，默认为建立视频会议连接后，将预设桌面的屏幕数据作为当前摄像头“拍摄”得到的视频输出数据。实际应用中，也可以将实际摄像头拍摄的实际视频数据默认为视频输出数据，并在接收到切换指令时，将预设桌面的屏幕数据切换为视频输出数据。同时，本实施例中可以根据本地与会者的实际需求多次在预设桌面的屏幕数据和实际视频数据之间执行 切换操作，且每次均无需对视频会议软件执行任何操作。
综上，通过获取预设桌面的屏幕数据，并在建立本地视频设备与远程视频设备的视频会议连接后，对预设桌面的屏幕数据进行格式转换，如果没有接收到视频切换指令，则将转换后的预设桌面的屏幕数据作为视频输出数据，如果接收到视频切换指令，则将实际摄像头拍摄的实际视频数据作为视频输出数据，并将视频输出数据发送至远程视频设备的技术手段，实现了在预设桌面的屏幕数据和实际视频数据之间切换，且无需对视频会议软件执行任何的操作。同时，无需将本地与会者需要显示的文本数据、视频数据、幻灯片数据以及图片数据等预先发送给远程与会者，以由远程与会者手动实现实时显示。
实施例四
图4为本发明实施例四提供的一种视频获取装置的结构示意图。参考图4，本实施例提的视频获取装置包括：连接建立模块401、数据转换模块402以及数据发送模块403。
其中，连接建立模块401，用于建立本地视频设备与至少一个远程视频设备的视频会议连接；数据转换模块402，用于将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；数据发送模块403，用于将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
综上，通过在本地视频设备与至少一个远程视频设备建立视频会议连接后，将本地视频设备获取的预设桌面的屏幕数据转换为当前摄像头的视频输出数据，其中，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到 的数据，并将该视频输出数据传输至远程视频设备中，以实现在远程视频设备中实时显示该视频输出数据的技术方案，实现了在视频会议时，无需对本地视频设备和远程视频设备中的视频会议软件做任何改动或者二次开发，便可以实现将非本地与会者视频数据的预设桌面的屏幕数据在远程视频设备中实时显示。同时，无需将本地与会者需要显示的文本数据、视频数据、幻灯片数据以及图片数据等预先发送给远程与会者，以由远程与会者手动实现实时显示。
在上述实施例的基础上，还包括：数据获取模块，用于在建立本地视频设备与至少一个远程视频设备的视频会议连接之前或之后，获取传屏设备发送的预设桌面的屏幕数据，预设桌面为与传屏设备连接的至少一个智能设备的桌面；或，用于在建立本地视频设备与至少一个远程视频设备的视频会议连接之前或之后，获取与本地视频设备连接的至少一个智能设备发送的自身桌面的屏幕数据作为预设桌面的屏幕数据。
在上述实施例的基础上，数据转换模块402包括：写入单元，用于将本地视频设备获取的预设桌面的屏幕数据通过预先设定的数据接口写入虚拟摄像头中；转换单元，用于利用虚拟摄像头转换预设桌面的屏幕数据，以得到视频会议连接中摄像头的视频输出数据。
在上述实施例的基础上，还包括：数据切换模块，用于将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据之后，在确认接收到视频切换指令时，获取本地视频设备的实际摄像头拍摄的实际视频数据，并将实际视频数据作为视频会议连接中摄像头的视频输出数据。
在上述实施例的基础上，数据转换模块402包括：数据合并单元，用于合并实际摄像头拍摄的实际视频数据和本地视频设备获取的预设桌面的屏幕数据；混合数据转换单元，用于将合并后的混合数据转换为视频会议连接中摄像 头的视频输出数据。
本发明实施例提供的视频获取装置可以用于执行上述任意实施例提供的视频获取方法，具备相应的功能和有益效果。
实施例五
图5为本发明实施例五提供的一种视频设备的结构示意图。如图5所示，该视频设备包括处理器50、存储器51、摄像头52、通信装置53、输入装置54和输出装置55；视频设备中处理器50的数量可以是一个或多个，图5中以一个处理器50为例；视频设备中摄像头52的数量可以是一个或多个，图5中以一个摄像头52为例；视频设备中的处理器50、存储器51、摄像头52、通信装置53、输入装置54和输出装置55可以通过总线或其他方式连接，图5中以通过总线连接为例。
存储器51作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本发明实施例中的视频获取方法对应的程序指令/模块(例如，视频获取装置中的连接建立模块401、数据转换模块402和数据发送模块403)。处理器50通过运行存储在存储器51中的软件程序、指令以及模块，从而执行视频设备的各种功能应用以及数据处理，即实现上述的视频获取方法。
存储器51可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器51可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器51可进一步包括相对于处理器50远程设置的存储器，这些远程存储器可以通过网络连接至视频设备。上述网络的实例 包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
摄像头52为实际摄像头，用于在视频会议过程中拍摄与会者画面，并输出实际视频数据。
通信装置53可用于与至少一个远程视频设备进行连接，并向至少一个远程视频设备发送视频输出数据；还用于与传屏设备进行连接，并获取传屏设备发送的预设桌面的屏幕数据。
输入装置54可用于接收输入的数字或字符信息，以及产生与视频设备的用户设置以及功能控制有关的键信号输入。输出装置55可包括显示屏等显示设备。
本发明实施例提供的视频设备可以执行上述任意实施例提供的视频获取方法，具备相应的功能和有益效果。
实施例六
本发明实施例六还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种视频获取方法，该视频获取方法包括：
建立本地视频设备与至少一个远程视频设备的视频会议连接；
将本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；
将视频输出数据发送至远程视频设备中，以使远程视频设备实时显示视频输出数据。
当然，本发明实施例所提供的一种包含计算机可执行指令的存储介质，其计算机可执行指令不限于如上所述的视频获取方法操作，还可以执行本发明任意 实施例所提供的视频获取方法中的相关操作，具备相应的功能和有益效果。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本发明可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的视频获取方法。
值得注意的是，上述视频获取装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互区分，并不用于限制本发明的保护范围。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种视频获取方法，其特征在于，包括：
    建立本地视频设备与至少一个远程视频设备的视频会议连接；
    将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；
    将所述视频输出数据发送至所述远程视频设备中，以使所述远程视频设备实时显示所述视频输出数据。
  2. 根据权利要求1所述的视频获取方法，其特征在于，所述建立本地视频设备与至少一个远程视频设备的视频会议连接之前或之后，还包括：
    获取传屏设备发送的预设桌面的屏幕数据，所述预设桌面为与所述传屏设备连接的至少一个智能设备的桌面；或
    获取与本地视频设备连接的至少一个智能设备发送的自身桌面的屏幕数据作为预设桌面的屏幕数据。
  3. 根据权利要求1所述的视频获取方法，其特征在于，所述将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据包括：
    将所述本地视频设备获取的预设桌面的屏幕数据通过预先设定的数据接口写入虚拟摄像头中；
    利用所述虚拟摄像头转换所述预设桌面的屏幕数据，以得到视频会议连接中摄像头的视频输出数据。
  4. 根据权利要求1所述的视频获取方法，其特征在于，所述将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据之后，还包括：
    在确认接收到视频切换指令时，获取所述本地视频设备的实际摄像头拍摄的实际视频数据，并将所述实际视频数据作为视频会议连接中摄像头的视频输出数据。
  5. 根据权利要求1所述的视频获取方法，其特征在于，所述将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据包括：
    合并实际摄像头拍摄的实际视频数据和所述本地视频设备获取的预设桌面的屏幕数据；
    将合并后的混合数据转换为视频会议连接中摄像头的视频输出数据。
  6. 一种视频获取装置，其特征在于，包括：
    连接建立模块，用于建立本地视频设备与至少一个远程视频设备的视频会议连接；
    数据转换模块，用于将所述本地视频设备获取的预设桌面的屏幕数据转换为视频会议连接中摄像头的视频输出数据，所述预设桌面的屏幕数据为对预设桌面的显示画面进行抓取后得到的数据；
    数据发送模块，用于将所述视频输出数据发送至所述远程视频设备中，以使所述远程视频设备实时显示所述视频输出数据。
  7. 根据权利要求6所述的视频获取装置，其特征在于，还包括：
    数据获取模块，用于建立本地视频设备与至少一个远程视频设备的视频会议连接之前或之后，获取传屏设备发送的预设桌面的屏幕数据，所述预设桌面为与所述传屏设备连接的至少一个智能设备的桌面；或，用于建立本地视频设备与至少一个远程视频设备的视频会议连接之前或之后，获取与本地视频设备连接的至少一个智能设备发送的自身桌面的屏幕数据作为预设桌面的屏幕数 据。
  8. 根据权利要求6所述的视频获取装置，其特征在于，所述数据转换模块包括：
    写入单元，用于将所述本地视频设备获取的预设桌面的屏幕数据通过预先设定的数据接口写入虚拟摄像头中；
    转换单元，用于利用所述虚拟摄像头转换所述预设桌面的屏幕数据，以得到视频会议连接中摄像头的视频输出数据。
  9. 一种视频设备，其特征在于，包括：
    一个或多个处理器；
    存储装置，用于存储一个或多个程序；
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1-5中任一所述的视频获取方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-5中任一所述的视频获取方法。
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