CN114553844A - Method for sharing screen during video - Google Patents
Method for sharing screen during video Download PDFInfo
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- CN114553844A CN114553844A CN202210231965.6A CN202210231965A CN114553844A CN 114553844 A CN114553844 A CN 114553844A CN 202210231965 A CN202210231965 A CN 202210231965A CN 114553844 A CN114553844 A CN 114553844A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
- H04L65/4015—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the technical field of video communication, in particular to a method for sharing a screen during video, which belongs to the technical field of communication; a method for screen sharing during video comprises the following steps: the system layer is used for the development of the software, and the application layer is used for the development of the software by a third-party software developer; the application layer is used for creating a video plug flow channel, collecting camera pictures and filling picture-in-picture into the video plug flow channel; the system layer is used for monitoring video communication, collecting video screen pictures, extracting the camera pictures collected by the application layer, combining the screen pictures and the camera pictures into a picture-in-picture, and finally transmitting the picture-in-picture to the application layer; the invention utilizes the advantage of system authority to provide a screen sharing function for a user when detecting that a video communication behavior exists; when the user starts the function, the screen and the camera picture are automatically obtained, picture-in-picture is synthesized, the original camera picture is replaced, and the picture is transmitted to the third party application.
Description
Technical Field
The invention relates to the technical field of video communication, in particular to a method for sharing a screen during video, and belongs to the technical field of communication.
Background
The screen sharing is a ubiquitous requirement during video, and many third-party applications need the function, so that if the system can provide a solution without application layer adaptation, the repeated research and development cost can be reduced, the function popularization is rapidly promoted, and more convenience is brought to people.
The new canopy situation has led to a proliferation of screen sharing requirements in video. The screen sharing function of the system on the market does not support the video, and a third party application is required to research and develop the system. However, due to the research and development cost, many software have not supported the function for a while, for example, the mobile phone still cannot directly share the screen when the user has WeChat video chat, and cannot meet the requirement of efficient communication for the user, and the solution on the market realizes the function from the application layer, but the disadvantages of such a solution are: each application needs to be developed separately, only solving the problem of the single application itself. If the application does not develop the function, the user requirements cannot be met.
Disclosure of Invention
The purpose of the invention is as follows: the method for sharing the screen during the video is provided, the screen sharing during the video is a ubiquitous requirement, a plurality of third-party applications need the function, if the system can provide a solution without application layer adaptation, repeated research and development cost can be reduced, the function popularization is rapidly promoted, and more convenience is brought to people.
The technical scheme is as follows: a method of screen sharing while video, comprising: the application layer is responsible for research and development by third-party software developers, and the system layer is responsible for research and development by an operating system development team.
In a further embodiment, the method of screen sharing comprises the steps of:
s1, when the video sharing function is used by the application, the application layer carries out video communication creation;
s1.1, the application layer creates a video plug flow channel;
s2, when the video sharing function is used by the application, the system layer monitors the video communication;
s2.1, when a user authorizes to open the camera, the system layer collects a video screen picture of the user;
s1.2, authorizing a camera to be opened by a user, and acquiring a camera picture by the application layer;
s2.2, the system layer extracts the camera picture;
s2.3, the system layer combines the screen picture and the camera picture into a picture-in-picture;
s2.4, replacing the picture-in-picture by the system layer into the camera picture, and transmitting the picture-in-picture to the application layer;
s1.3, the application layer receives the replaced camera picture and fills the camera picture into the video plug flow channel.
In a further embodiment, the application layer is configured to create a video stream channel, capture a camera picture, and fill a picture-in-picture into the video stream channel.
In a further embodiment, the system layer is configured to perform monitoring video communication, collect a video screen, extract a camera image collected by the application layer, combine the screen image and the camera image into a pip, and finally transmit the pip to the application layer.
In a further embodiment, the present invention includes a control system; the control system includes:
the application monitoring module is used for providing a function interaction inlet when detecting that the user equipment starts video communication;
the user operation module is used for inputting a function opening or closing instruction by the user operation interface;
the data acquisition module is used for acquiring the camera picture and acquiring the screen picture;
the data synthesis module is used for splicing the screen picture and the camera picture in a picture-in-picture layout mode;
a data replacement module: for replacing the original camera data with the synthesized picture data.
In a further embodiment, when the camera picture is filled into the video stream pushing channel, the video screen sharing is completed, and the picture is monitored in real time.
In a further embodiment, the application monitoring module comprises a detection sub-module; the detection submodule comprises the following working steps:
step 1, when a user starts an application, a detection submodule works to detect whether the application is a target application;
step 2, when the target application is carried out, carrying out the next step; when the application is not the target application, no operation is performed;
step 3, when the target application has the application with the video communication function, detecting whether the target application is carrying out video communication;
and 4. step 4. When the target application is carrying out video communication, carrying out the next step; when the target application is not in video communication, no operation is performed;
and 5, providing a function inlet.
In a further embodiment, the target application is an application (referred to as WeChat, nailing and the like) with a video communication function, and the target application can be configured in the system by means of an application white list, and an interface is provided for the detection module to judge. A
In a further embodiment, the detecting whether the target application is performing video communication includes the following scheme:
scheme 1, monitoring camera state: the system layer can monitor the starting state of the camera, and if the camera is started, the camera is regarded as being in video communication;
scheme 2, image recognition interface characteristics: the system layer may monitor the foreground interface pattern and consider video communication as being in progress if the pattern is a video picture-in-picture and has the characteristics of icon and the like.
And scheme 3, monitoring the calling condition of the API: when the application carries out video communication, the relevant API is called; the related information can be configured in the system, and an interface is provided for the detection module to judge.
In a further embodiment, a system in the data acquisition module has a relevant interface through a BSP layer, and the system can directly acquire a camera picture and acquire a screen picture through a screen recording API, screen capture and other forms.
Has the advantages that: the invention relates to the technical field of video communication, in particular to a method for sharing a screen during video, which belongs to the technical field of communication and solves the problem that a third-party application does not support the screen sharing function during video, and the method comprises the following steps: the system layer is used for the development of the software, and the application layer is used for the development of the software by a third-party software developer; the application layer is used for creating a video plug flow channel, collecting camera pictures and filling picture-in-picture into the video plug flow channel; the system layer is used for monitoring video communication, collecting video screen pictures, extracting the camera pictures collected by the application layer, combining the screen pictures and the camera pictures into a picture-in-picture, and finally transmitting the picture-in-picture to the application layer; the invention utilizes the advantage of system authority to provide a screen sharing function for a user when detecting that a video communication behavior exists; when a user starts a function, automatically acquiring a screen and a camera picture, synthesizing picture-in-picture and replacing the original camera picture, and transmitting the picture-in-picture to a third party application; the invention realizes the function from the system layer, and has the advantages that: only once development is needed, third-party application adaptation is not needed, the same problem of all applications is solved, and if the functions are not developed, the user requirements can still be met.
Drawings
Fig. 1 is a screen sharing scheme in the prior art.
FIG. 2 is a diagram illustrating a screen sharing method according to the present invention.
Fig. 3 is a schematic diagram of the control system of the present invention.
FIG. 4 is a schematic diagram of the operation of the detection module of the present invention.
Fig. 5 is a picture-in-picture schematic of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these details; in other instances, well-known features have not been described in order to avoid obscuring the invention.
A method of screen sharing while video, comprising: the application layer is responsible for research and development by third-party software developers, and the system layer is responsible for research and development by an operating system development team.
Some terms in the present invention are explained:
video communication: which is a communication method for transmitting video in real time between electronic terminals. The video is composed of one picture, and looks like a continuous dynamic picture due to the fast playing speed, and generally more than 24 frames of pictures need to be played every second.
Screen sharing: refers to synchronizing an image/video displayed on one electronic terminal to another electronic terminal for display.
Screen sharing during video: the method refers to that screen sharing can be carried out when video communication is used in one application.
A system layer: an operating system development team is responsible for research and development, the system has more permissions, and the original data of the system can be directly modified.
An application layer: the third-party software developer is responsible for research and development, has less system authority and cannot change the original data of the system.
Picture in picture: in this patent, one video is displayed in full screen, and another video or videos are simultaneously displayed on a certain part of the screen.
In one embodiment, in the prior art, a screen sharing function is required to be developed by a third party application when none of the systems supports video, however, due to the development cost, many software temporarily does not support the function, for example, a screen cannot be directly shared when a mobile phone wechat is carried out, and a solution on the market which cannot meet the requirement of efficient communication of a user cannot be met, the function is implemented from an application layer, but the following definite disadvantages exist: each application needs to be developed independently, only the problem of a single application is solved, and if the application does not develop the function, the requirement of a user cannot be met, so that the invention provides a method for sharing the screen during video, solves the problem that the third-party application does not support the screen sharing function during video, and provides the screen sharing function for the user when the video communication behavior is detected by using the advantage of the system authority; when a user starts a function, automatically acquiring a screen and a camera picture, synthesizing picture-in-picture and replacing the original camera picture, and transmitting the picture-in-picture to a third party application; so that the communicating party can see the picture of the screen in the video.
Specifically, the screen sharing method comprises the following steps:
s1, when the video sharing function is used by the application, the application layer carries out video communication creation;
s1.1, the application layer creates a video plug flow channel;
s2, when the video sharing function is used by the application, the system layer monitors the video communication;
s2.1, when a user authorizes to open the camera, the system layer collects a video screen picture of the user;
s1.2, authorizing a camera to be opened by a user, and acquiring a camera picture by the application layer;
s2.2, the system layer extracts the camera picture;
s2.3, the system layer combines the screen picture and the camera picture into a picture-in-picture;
s2.4, replacing the picture-in-picture by the system layer into the camera picture, and transmitting the picture-in-picture to the application layer;
s1.3, the application layer receives the replaced camera picture and fills the camera picture into the video plug flow channel.
In one embodiment, the application layer is configured to create a video plug-flow channel, capture a camera picture, and fill a picture-in-picture into the video plug-flow channel.
In one embodiment, the system layer is configured to perform monitoring video communication, collect video screen pictures, extract camera pictures collected by the application layer, combine the screen pictures and the camera pictures into a pip, and finally transmit the pip to the application layer.
Specifically, the solution of the present invention, which implements this function from the system layer, has the following advantages: the same problem of all applications can be solved only by once development without the adaptation of third-party applications. If the function is not developed, the user requirements can still be met.
In one embodiment, the invention only has client logic without server logic, only has functional logic without algorithm logic, and focuses on the functional logic without interface and interaction requirements.
In one embodiment, the present invention includes a control system; the control system includes:
the application monitoring module is used for providing a function interaction inlet when detecting that the user equipment starts video communication;
the user operation module is used for inputting a command for starting or closing the function by the user operation interface;
the data acquisition module is used for acquiring the camera picture and acquiring the screen picture;
the data synthesis module is used for splicing the screen picture and the camera picture in a picture-in-picture layout mode;
a data replacement module: for replacing the original camera data with the synthesized picture data.
In particular, the occasional weak extensibility of each module is strong.
In one embodiment, when the camera pictures are filled into the video plug-flow channel, video screen sharing is completed, and real-time monitoring pictures are performed.
In one embodiment, the application monitoring module includes a detection sub-module; the detection submodule comprises the following working steps:
step 1, when a user starts an application, a detection submodule works to detect whether the application is a target application;
step 2, when the target application is carried out, carrying out the next step; when the application is not the target application, no operation is performed;
step 3, when the target application has the application with the video communication function, detecting whether the target application is carrying out video communication;
and 4. step 4. When the target application is carrying out video communication, carrying out the next step; when the target application is not in video communication, no operation is performed;
and 5, providing a function inlet.
In one embodiment, the target application is an application (referred to as wechat, nailing or the like) having a video communication function, and the target application may be configured in the system by means of an application white list, and an interface is provided for the detection module to determine. A
In one embodiment, the detecting whether the target application is performing video communication includes the following scheme:
scheme 1, monitoring camera state: the system layer can monitor the starting state of the camera, and if the camera is started, the camera is regarded as being in video communication;
scheme 2, image recognition interface characteristics: the system layer may monitor the foreground interface pattern and consider video communication as being in progress if the pattern is a video picture-in-picture and has the characteristics of icon and the like.
And scheme 3, monitoring the calling condition of the API: when the application carries out video communication, the relevant API is called; the related information can be configured in the system, and an interface is provided for the detection module to judge.
In one embodiment, a system in the data acquisition module has a relevant interface through a BSP layer, and the system can directly acquire a camera picture and acquire a screen picture through a screen recording API, screen capture and other forms.
The working principle is as follows: when the application layer is used for using the video sharing function through the application, the application layer carries out video communication creation; the application layer creates a video plug flow channel; when the system layer is used for using a video sharing function through an application, monitoring the video communication; when the user authorizes to open the camera, the system layer collects the video screen picture of the user; the user authorizes to open the camera, and the application layer collects the picture of the camera; the system layer extracts the camera picture; the system layer combines the screen picture and the camera picture into a picture-in-picture; the system layer replaces the picture-in-picture with the camera picture and transmits the picture-in-picture to the application layer; and the application layer receives the replaced camera picture and fills the camera picture into the video plug flow channel.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (8)
1. A method for screen sharing during video, comprising: the system layer is used for the development of the software, and the application layer is used for the development of the software by a third-party software developer;
the screen sharing method comprises the following steps:
s1, when the video sharing function is used by the application, the application layer carries out video communication creation;
s1.1, the application layer creates a video plug flow channel;
s2, when the video sharing function is used by the application, the system layer monitors the video communication;
s2.1, when a user authorizes to open the camera, the system layer collects a video screen picture of the user;
s1.2, authorizing a camera to be opened by a user, and acquiring a camera picture by the application layer;
s2.2, the system layer extracts the camera picture;
s2.3, the system layer combines the screen picture and the camera picture into a picture-in-picture;
s2.4, replacing the picture-in-picture by the system layer into the camera picture, and transmitting the picture-in-picture to the application layer;
s1.3, the application layer receives the replaced camera picture and fills the camera picture into the video plug flow channel.
2. The method for screen sharing during video according to claim 1,
the application layer is used for creating a video plug flow channel, collecting camera pictures and filling picture-in-picture into the video plug flow channel;
the system layer is used for monitoring video communication, collecting video screen pictures, extracting the camera pictures collected by the application layer, combining the screen pictures and the camera pictures into picture-in-picture, and finally transmitting the picture-in-picture to the application layer.
3. The method for screen sharing during video according to claim 1, further comprising a control system; the control system includes:
the application monitoring module is used for providing a function interaction inlet when detecting that the user equipment starts video communication;
the user operation module is used for inputting a function opening or closing instruction by the user operation interface;
the data acquisition module is used for acquiring the camera picture and acquiring the screen picture;
the data synthesis module is used for splicing the screen picture and the camera picture in a picture-in-picture layout mode;
a data replacement module: for replacing the original camera data with the synthesized picture data.
4. The method for screen sharing during video according to claim 1,
and when the camera pictures are filled into the video plug-flow channel, the sharing of the video screen is completed, and the pictures are monitored in real time.
5. The method for screen sharing during video according to claim 3,
the application monitoring module comprises a detection submodule; the detection submodule comprises the following working steps:
step 1, when a user starts an application, a detection submodule works to detect whether the application is a target application;
step 2, when the target application is carried out, carrying out the next step; when the application is not the target application, no operation is performed;
step 3, when the target application has the application with the video communication function, detecting whether the target application is carrying out video communication;
step 4, when the target application is carrying out video communication, carrying out the next step; when the target application is not in video communication, no operation is performed;
and 5, providing a function inlet.
6. The method for screen sharing during video according to claim 5,
when the target application is used, the application (such as micro-letter and nail) with the video communication function can configure the target application in the system in a mode of an application white list and provide an interface for the detection module to judge.
7. The method for screen sharing during video according to claim 5,
the following scheme is adopted for detecting whether the target application is in video communication:
scheme 1, monitoring camera state: the system layer can monitor the starting state of the camera, and if the camera is started, the camera is regarded as being in video communication;
scheme 2, image recognition interface characteristics: the system layer can monitor the foreground interface pattern, and if the pattern is a video picture-in-picture and has the characteristics of related icon and the like, the system layer is considered to be carrying out video communication;
and scheme 3, monitoring the calling condition of the API: when the application carries out video communication, the relevant API is called; the related information can be configured in the system, and an interface is provided for the detection module to judge.
8. The method for screen sharing during video according to claim 3,
the system in the data acquisition module is provided with a relevant interface through a BSP layer, the system can directly acquire a camera picture, and screen pictures are acquired through a screen recording API, a screen capturing mode and the like.
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| CN202210231965.6A CN114553844B (en) | 2022-03-09 | 2022-03-09 | Method for sharing screen during video |
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| CN202210231965.6A CN114553844B (en) | 2022-03-09 | 2022-03-09 | Method for sharing screen during video |
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