CN113961162A - Screen projection control method, screen projection sending end, screen projection receiving end and screen projection system - Google Patents

Screen projection control method, screen projection sending end, screen projection receiving end and screen projection system Download PDF

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Publication number
CN113961162A
CN113961162A CN202111211915.3A CN202111211915A CN113961162A CN 113961162 A CN113961162 A CN 113961162A CN 202111211915 A CN202111211915 A CN 202111211915A CN 113961162 A CN113961162 A CN 113961162A
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China
Prior art keywords
screen projection
channel
screen
sending
instruction
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CN202111211915.3A
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Chinese (zh)
Inventor
匡乾波
赵凯
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Meizu Technology Co Ltd
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Meizu Technology Co Ltd
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Priority to CN202111211915.3A priority Critical patent/CN113961162A/en
Publication of CN113961162A publication Critical patent/CN113961162A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention discloses a screen projection control method, which is applied to a screen projection sending end and comprises the following steps: a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end are established; receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel; and capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel. The invention also discloses a screen projection control method, which is applied to a screen projection receiving end and comprises the following steps: receiving a screen projection operation instruction triggered by a third party; sending the screen-throwing operation instruction to a screen-throwing sending end through a screen-throwing instruction channel; and screen projection data returned by the screen projection sending end based on the screen projection operation instruction are received through a screen projection data channel, and the screen projection data are subjected to screen projection display.

Description

Screen projection control method, screen projection sending end, screen projection receiving end and screen projection system
Technical Field
The invention relates to the field of communication, in particular to a screen projection control method, a screen projection sending end, a screen projection receiving end and a screen projection system.
Background
The screen projection refers to projecting files, videos or audios and the like on one device to another device for display. For example, the PPT file on the mobile phone is dropped to a computer for display.
There are multiple modes of throwing the screen among the prior art, for example, the cell-phone can throw the screen to the computer based on WIFI's Miracast, but this kind of mode of throwing the screen can't realize through reverse control, can't realize through computer control cell-phone promptly. Although some screen projection modes can realize reverse control, when the screen projection modes are adopted for screen projection, a screen projection instruction and screen projection data share the same transmission channel, so that the problems of long transmission waiting time and screen projection blockage are easily caused.
Therefore, how to reduce the screen projection transmission time and the screen projection pause rate while realizing the reverse screen projection control becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a screen projection control method, a screen projection sending end, a screen projection receiving end, a screen projection system, computer equipment and a computer readable storage medium, which can reduce screen projection transmission time and screen projection pause rate while realizing reverse screen projection control.
One aspect of the present invention provides a screen projection control method, which is applied to a screen projection transmitting end, and the method includes: a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end are established; receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel; and capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel.
Optionally, the creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end includes: and sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in which the screen projection receiving end is positioned so as to create the screen projection instruction channel and the screen projection data channel.
Optionally, the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode in which the screen projection receiving end is currently located to create the screen projection instruction channel and the screen projection data channel includes: when the screen projection mode is a wired AOA screen projection mode, identifying a wired AOA channel for connecting the screen projection sending terminal and the screen projection receiving terminal; generating the screen projection channel creation request based on the wired AOA channel; and sending the screen projection channel creation request to the screen projection receiving end through the wired AOA channel so as to divide the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, the generating the screen projection channel creation request based on the wired AOA channel includes: determining a channel width of the wired AOA channel; dividing the channel width of the wired AOA channel into a first channel width and a second channel width, wherein the first channel width is used for representing the channel width of the screen projection instruction channel, and the second channel width is used for representing the channel width of the screen projection data channel; generating a screen-cast channel creation request including the first channel width and the second channel width.
Optionally, the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode in which the screen projection receiving end is currently located to create the screen projection instruction channel and the screen projection data channel includes: when the screen projection mode is a wireless network screen projection mode, determining address information of the screen projection receiving end; generating a first screen projection channel creation sub-request for creating the screen projection instruction channel, and sending the first screen projection channel creation sub-request to the address information to create the screen projection instruction channel; and generating a second screen projection channel creation sub-request for creating the screen projection data channel, and sending the second screen projection channel creation sub-request to the address information to create the screen projection data channel.
Optionally, the determining address information of the screen projection receiving end includes: scanning the two-dimensional code provided by the screen projection receiving end; and identifying the IP address and the port number carried by the two-dimensional code as the address information of the screen projection receiving end.
Another aspect of the present invention provides a screen projection control method, applied to a screen projection receiving end, including: receiving a screen projection operation instruction triggered by a third party; sending the screen-throwing operation instruction to a screen-throwing sending end through a screen-throwing instruction channel; and screen projection data returned by the screen projection sending end based on the screen projection operation instruction are received through a screen projection data channel, and the screen projection data are subjected to screen projection display.
Optionally, before the receiving of the screen-throwing operation instruction triggered by the third party, the method further includes: detecting a screen projection mode of the screen projection receiving terminal at present; receiving a screen projection channel establishing request sent by the screen projection sending end based on the screen projection mode; and when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel.
Optionally, when the screen projection mode is a wired AOA screen projection mode: the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes: receiving, by a wired AOA channel, a screen-casting channel creation request, which is sent by the screen-casting sending end and used for dividing the wired AOA channel into the screen-casting instruction channel and the screen-casting data channel, wherein the wired AOA channel is used for connecting the screen-casting sending end and the screen-casting receiving end; when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises: and when the screen projection channel creation request is legal, returning a message for representing the creation agreement to the screen projection sending end through the wired AOA channel so that the screen projection sending end divides the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, when the screen projection mode is a wireless network screen projection mode: the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes: generating and displaying a two-dimensional code containing address information of the screen projection receiving end; receiving a first screen-casting channel creation sub-request used for creating the screen-casting instruction channel and a second screen-casting channel creation sub-request used for creating the screen-casting data channel, which are sent by the screen-casting sending end based on the two-dimensional code; when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises: when the first screen throwing channel creation sub-request is legal, returning a message for representing that the screen throwing instruction channel is allowed to be created to the screen throwing sending terminal so that the screen throwing sending terminal creates the screen throwing instruction channel; and when the second screen projection channel creation sub-request is legal, returning a message for representing that the creation of the screen projection data channel is agreed to the screen projection sending end so that the screen projection sending end creates the screen projection data channel.
Another aspect of the present invention provides a screen projection transmitting terminal, including: the creation module is used for creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end; the first receiving module is used for receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel; the first sending module is used for capturing screen projection data pointed by the screen projection operation instruction and sending the screen projection data to the screen projection receiving end through the screen projection data channel.
Yet another aspect of the present invention provides a projection receiving terminal, including: the second receiving module is used for receiving a screen projection operation instruction triggered by a third party; the second sending module is used for sending the screen-throwing operation instruction to a screen-throwing sending end through a screen-throwing instruction channel; and the third receiving module is used for receiving screen projection data returned by the screen projection sending end based on the screen projection operation instruction through a screen projection data channel, and performing screen projection display on the screen projection data.
Another aspect of the present invention provides a screen projection control system, including a screen projection transmitting terminal and a screen projection receiving terminal, wherein: the screen projection sending end is used for creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end; the screen projection receiving end is used for receiving a screen projection operation instruction triggered by a third party and sending the screen projection operation instruction to the screen projection sending end through the screen projection instruction channel; the screen projection sending end is also used for receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel, capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel; the screen projection receiving end is further used for receiving screen projection data returned by the screen projection sending end based on the screen projection operation instruction through the screen projection data channel, and performing screen projection display on the screen projection data.
Yet another aspect of the present invention provides a computer apparatus, comprising: the screen projection control method applied to the screen projection sending end or the screen projection control method applied to the screen projection receiving end in any embodiment is realized when the processor executes the computer program.
A further aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the screen projection control method applied to a screen projection transmitting end or the screen projection control method applied to a screen projection receiving end of any of the above-described embodiments.
According to the screen projection control method provided by the invention, when a screen projection sending end projects a screen to a screen projection receiving end, two screen projection channels are firstly created: a throw screen instruction passageway and be used for transmitting to throw the screen data passageway for transmission throw the screen operating instruction, throw the screen receiving terminal after receiving the screen operating instruction that throws that the third party triggered, can throw the screen operating instruction through throwing the screen instruction passageway and send for throwing the screen transmitting terminal, throw the screen transmitting terminal and snatch and throw the screen data that screen operating instruction operated, then throw the screen data transmission that screen data passageway will snatch and give and throw the screen receiving terminal through throwing, throw the screen receiving terminal and can throw the screen display with this screen data of throwing. In the embodiment, the screen projection operation instruction and the screen projection data are transmitted through two different channels, so that the screen projection operation instruction and the screen projection data can be transmitted simultaneously, and the screen projection transmission time length and the screen projection pause rate can be reduced while the reverse screen projection control is realized.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a block diagram illustrating a screen projection control system provided in an embodiment of the present invention;
fig. 2 shows an interaction diagram of a screen projection transmitting end and a screen projection receiving end according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a screen projection control method applied to a screen projection transmitting end according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating a screen projection control method applied to a screen projection receiving end according to a third embodiment of the present invention;
fig. 5 is a block diagram of a screen projection transmitting end according to a fourth embodiment of the present invention;
fig. 6 shows a block diagram of a screen projection receiving end according to a fifth embodiment of the present invention;
fig. 7 is a block diagram of a screen projection transmitting end or a screen projection receiving end according to a sixth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Example one
Fig. 1 is a block diagram illustrating a screen projection control system according to an embodiment of the present invention. As shown in fig. 1, the screen projection control system 100 includes a screen projection transmitting terminal 101 and a screen projection receiving terminal 102, where:
and the screen projection sending end 101 is used for creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end 101 and the screen projection receiving end 102.
The screen projection transmitting end can be a mobile phone, a computer and the like, and the screen projection receiving end can be a computer, a projector and the like. The screen projection sending end is internally provided with screen projection server software, the screen projection receiving end is provided with screen projection client software, and the screen projection purpose can be realized through the interaction of the screen projection server software and the screen projection client software.
The screen-casting instruction channel and the screen-casting data channel are two different channels, the screen-casting instruction channel is used for transmitting a screen-casting operation instruction, the screen-casting operation instruction can be a click instruction or a drag instruction triggered by a user touching a display screen of a screen-casting receiving end, a click instruction triggered by a mouse clicking the display screen of the screen-casting receiving end, a drag instruction triggered by a mouse executing drag operation on the display screen of the screen-casting receiving end, and the like, and the screen-casting data channel is used for transmitting data (also called screen-casting data) needing screen-casting display
Optionally, the screen projection sending end is specifically configured to, when executing creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end: and sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in which the screen projection receiving end is positioned so as to create the screen projection instruction channel and the screen projection data channel. Optionally, before executing the screen projection operation instruction triggered by the third party, the screen projection receiving end is further configured to: detecting a screen projection mode of the screen projection receiving terminal at present; receiving a screen projection channel establishing request sent by the screen projection sending end based on the screen projection mode; and when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel.
The screen projection receiving end can be provided with two screen projection modes: a wired AOA (Android access Protocol) screen projection mode and a wireless network screen projection mode. The wired AOA screen projection mode comprises the following steps: and the screen projection sending end and the screen projection receiving end are connected through a USB data line, and the screen projection sending end and the screen projection receiving end transmit screen projection operation instructions and screen projection data through an AOA protocol. The wireless network mode is as follows: the screen projection sending end and the screen projection receiving end are connected through a wireless network, and the screen projection sending end and the screen projection receiving end can transmit screen projection operation instructions and screen projection data through a TCP/IP protocol or a QUIC (quick UDP Internet connection) protocol and the like.
When a screen projection instruction channel and a screen projection data channel are created, a screen projection sending end needs to actively send screen projection channel creation requests to a screen projection receiving end, screen projection modes of the screen projection receiving end are different, modes of the screen projection sending end sending the screen projection channel creation requests to the screen projection receiving end are different, and accordingly, modes of the screen projection receiving end receiving the screen projection channel creation requests are different. After receiving the screen projection channel creation request, the screen projection receiving end actively verifies whether the screen projection channel creation request is legal, for example, whether a sender (also called a screen projection sending end) of the screen projection channel creation request is located in a preset white list, if the screen projection receiving end is legal, the screen projection receiving end agrees to create a screen projection instruction channel and a screen projection data channel, and at the moment, the creation of the screen projection instruction channel and the screen projection data channel can be completed.
Optionally, when the screen-casting mode in which the screen-casting receiving terminal is currently located is the wired AOA screen-casting mode, the screen-casting receiving terminal, for example, screen-casting client software, sends a request for determining whether the screen-casting sending terminal supports the AOA protocol to the screen-casting sending terminal through a channel (also referred to as a wired AOA channel) formed by the USB data lines, and then the screen-casting sending terminal returns the version number of the AOA protocol in the screen-casting sending terminal to the screen-casting receiving terminal through the wired AOA channel, and the screen-casting receiving terminal switches its own AOA protocol to a corresponding version; further, the screen projection receiving end can send the brand and the model of the screen projection sending end to the screen projection sending end through the wired AOA channel so as to automatically start screen projection server software in the screen projection sending end, the screen projection mode of the screen projection receiving end is set to be the wired AOA screen projection mode after the screen projection server software is started, and then screen projection channel creation work is started. Specifically, when executing a screen projection mode currently located by the screen projection receiving end, the screen projection sending end sends a screen projection channel creation request to the screen projection receiving end to create the screen projection instruction channel and the screen projection data channel, the screen projection sending end is specifically configured to: when the screen projection mode is a wired AOA screen projection mode, identifying a wired AOA channel for connecting the screen projection sending terminal and the screen projection receiving terminal; generating the screen projection channel creation request based on the wired AOA channel; and sending the screen projection channel creation request to the screen projection receiving end through the wired AOA channel so as to divide the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
In this embodiment, an existing wired AOA channel is divided into two channels, one channel is a screen projection instruction channel for transmitting screen projection operation instructions, the other channel is a screen projection data channel for transmitting screen projection data, and the screen projection instruction channel and the screen projection data channel both use AOA protocols in the transmission process.
Optionally, when the screen projection sending end generates the screen projection channel creation request based on the wired AOA channel, the screen projection sending end is specifically configured to: determining a channel width of the wired AOA channel; dividing the channel width of the wired AOA channel into a first channel width and a second channel width, wherein the first channel width is used for representing the channel width of the screen projection instruction channel, and the second channel width is used for representing the channel width of the screen projection data channel; generating a screen-cast channel creation request including the first channel width and the second channel width.
In this embodiment, the sum of the first channel width and the second channel width is less than or equal to the channel width of the wired AOA channel, and the first channel width may be less than or equal to the second channel width.
Optionally, when the screen projection mode is a wired AOA screen projection mode:
when executing the screen-casting channel creation request sent by the screen-casting sending terminal based on the screen-casting mode, the screen-casting receiving terminal is specifically configured to: receiving a screen-throwing channel creation request which is sent by the screen-throwing sending end and used for dividing the wired AOA channel into the screen-throwing instruction channel and the screen-throwing data channel through a wired AOA channel, wherein the wired AOA channel is used for connecting the screen-throwing sending end and the screen-throwing receiving end;
when executing that the screen projection channel creation request is legal, the screen projection receiving end returns a message for representing creation agreement to the screen projection sending end, so that when the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, the screen projection receiving end is specifically configured to: and when the screen projection channel creation request is legal, returning a message for representing the creation agreement to the screen projection sending end through the wired AOA channel so that the screen projection sending end divides the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
The process that the screen projection receiving end verifies whether the screen projection channel creation request is legal or not is as follows: and after receiving and analyzing the screen projection channel creation request, the screen projection receiving end obtains a first channel width and a second channel width carried by the screen projection channel creation request, determines the channel width of the wired AOA channel, verifies whether the sum of the first channel width and the second channel width is less than or equal to the channel width of the wired AOA channel or not, and whether the first channel width is less than or equal to the second channel width or not, and if so, considers that the screen projection channel creation request is legal.
Optionally, when the screen projection mode is a wireless network screen projection mode:
the screen projection receiving end is specifically configured to, when receiving a screen projection channel creation request sent by the screen projection sending end based on the screen projection mode: and generating and displaying a two-dimensional code containing the address information of the screen projection receiving end.
Wherein the address information includes an IP address and a port number. In addition, the screen projection receiving end can also start a monitoring program for monitoring whether a request sent by the external equipment to the address information is received.
The screen projection sending end is used for sending a screen projection channel creation request to the screen projection receiving end based on a screen projection mode currently located by the screen projection receiving end so as to create the screen projection instruction channel and the screen projection data channel: determining address information of the screen projection receiving end; generating a first screen projection channel creation sub-request for creating the screen projection instruction channel, and sending the first screen projection channel creation sub-request to the address information to create the screen projection instruction channel; and generating a second screen projection channel creation sub-request for creating the screen projection data channel, and sending the second screen projection channel creation sub-request to the address information to create the screen projection data channel.
In the wireless network screen projection mode, the created channels are all network channels, so that two creation requests need to be sent, namely a first screen projection channel creation sub-request for creating a screen projection instruction channel and a second screen projection channel creation sub-request for creating a screen projection data channel.
When the screen projection sending end executes and determines the address information of the screen projection receiving end, the screen projection sending end is specifically configured to:
scanning the two-dimensional code provided by the screen projection receiving end;
and identifying the IP address and the port number carried by the two-dimensional code as the address information of the screen projection receiving end.
The screen projection receiving end is specifically further configured to, when receiving a screen projection channel creation request sent by the screen projection sending end based on the screen projection mode: and receiving a first screen projection channel creation sub-request for creating the screen projection instruction channel and a second screen projection channel creation sub-request for creating the screen projection data channel, which are sent by the screen projection sending end based on the two-dimensional code.
When the screen projection channel creation request is legal, the screen projection receiving end returns a message for representing establishment approval to the screen projection sending end, so that when the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, the screen projection receiving end is specifically used for: when the first screen throwing channel creation sub-request is legal, returning a message for representing that the screen throwing instruction channel is allowed to be created to the screen throwing sending terminal so that the screen throwing sending terminal creates the screen throwing instruction channel; and when the second screen projection channel creation sub-request is legal, returning a message for representing that the creation of the screen projection data channel is agreed to the screen projection sending end so that the screen projection sending end creates the screen projection data channel.
The process that the screen projection receiving end verifies whether the screen projection channel creation request is legal or not is as follows: since the so-called screen-cast channel creation request is actually two requests in the wireless network screen-cast mode, two authentication procedures need to be performed. When the fact that the first screen projection channel creation sub-request is legal is verified, creation of a screen projection instruction channel can be agreed; when the fact that the second screen projection channel creation sub-request is legal is verified, creation of the screen projection data channel can be agreed.
The screen projection mode of the wireless network can be supported, and the defect that in the prior art, when the bottom layer of the screen projection sending end is connected based on WIFI P2P and the screen projection receiving end does not support WIFI, screen projection cannot be achieved is overcome.
And the screen projection receiving end 102 is configured to receive a screen projection operation instruction triggered by a third party, and send the screen projection operation instruction to the screen projection sending end 101 through a screen projection instruction channel.
It should be noted that, after the screen projection instruction channel and the screen projection data channel are created, the screen projection transmitting end may transmit data on the current screen interface to the screen projection receiving end through the screen projection data channel for screen projection display, and a third party may trigger a screen projection operation instruction based on the data currently displayed by the screen projection receiving end, where the third party may be a user, a mouse, or the like.
The screen projection sending end 101 is further configured to receive a screen projection operation instruction sent by the screen projection receiving end 102 through the screen projection instruction channel, capture screen projection data pointed by the screen projection operation instruction, and send the screen projection data to the screen projection receiving end 102 through the screen projection data channel.
And the screen projection receiving end 102 is further configured to receive screen projection data returned by the screen projection sending end 101 based on the screen projection operation instruction through a screen projection data channel, and perform screen projection display on the screen projection data.
In order to ensure data security, the screen projection sending end can send the screen projection data to the screen projection receiving end through the screen projection data channel after the screen projection data are coded by the coder, the screen projection receiving end receives the coded screen projection data through the screen projection data channel and decodes the coded screen projection data to obtain the screen projection data, and the screen projection data are further displayed on a display screen of the screen projection receiving end, so that a screen projection target can be completed.
As shown in fig. 2, the screen projection transmitting end and the screen projection receiving end are both provided with two channels: the screen projection system comprises a screen projection instruction channel and a screen projection data channel, wherein the screen projection instruction channel can directly transmit an original screen projection operation instruction, and the screen projection data channel can transmit encoded screen projection data to ensure data security. In addition, the screen projecting sending end and the screen projecting receiving end are both provided with Adapter Layer for transmitting the screen projecting operation instruction after being packaged through a screen projecting instruction channel, and transmitting the encoded screen projecting data after being packaged through a screen projecting data channel.
Example two
The second embodiment of the present invention further provides a screen-casting control method, which is applied to a screen-casting sending end, and the method corresponds to part of the content of the first embodiment, and corresponding technical features and technical effects are not described in detail in this embodiment, and reference may be made to the first embodiment for relevant points. Specifically, fig. 3 shows a flowchart of a screen projection control method applied to a screen projection sending end according to a second embodiment of the present invention. As shown in fig. 3, the screen-casting control method applied to the screen-casting transmitting terminal may include steps a1 to a step A3, where:
step A1, a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end are created;
step A2, receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel;
and A3, capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel.
Optionally, the creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end includes: and sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in which the screen projection receiving end is positioned so as to create the screen projection instruction channel and the screen projection data channel.
Optionally, the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode in which the screen projection receiving end is currently located to create the screen projection instruction channel and the screen projection data channel includes: when the screen projection mode is a wired AOA screen projection mode, identifying a wired AOA channel for connecting the screen projection sending terminal and the screen projection receiving terminal; generating the screen projection channel creation request based on the wired AOA channel; and sending the screen projection channel creation request to the screen projection receiving end through the wired AOA channel so as to divide the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, the generating the screen projection channel creation request based on the wired AOA channel includes: determining a channel width of the wired AOA channel; dividing the channel width of the wired AOA channel into a first channel width and a second channel width, wherein the first channel width is used for representing the channel width of the screen projection instruction channel, and the second channel width is used for representing the channel width of the screen projection data channel; generating a screen-cast channel creation request including the first channel width and the second channel width.
Optionally, the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode in which the screen projection receiving end is currently located to create the screen projection instruction channel and the screen projection data channel includes: when the screen projection mode is a wireless network screen projection mode, determining address information of the screen projection receiving end; generating a first screen projection channel creation sub-request for creating the screen projection instruction channel, and sending the first screen projection channel creation sub-request to the address information to create the screen projection instruction channel; and generating a second screen projection channel creation sub-request for creating the screen projection data channel, and sending the second screen projection channel creation sub-request to the address information to create the screen projection data channel.
Optionally, the determining address information of the screen projection receiving end includes: scanning the two-dimensional code provided by the screen projection receiving end; and identifying the IP address and the port number carried by the two-dimensional code as the address information of the screen projection receiving end.
EXAMPLE III
The third embodiment of the present invention further provides a screen projection control method, which is applied to a screen projection receiving end, and the method corresponds to part of the content of the first embodiment, and corresponding technical features and technical effects are not described in detail in this embodiment, and reference may be made to the first embodiment for relevant points. Specifically, fig. 4 shows a flowchart of a screen projection control method applied to a screen projection receiving end according to a third embodiment of the present invention. As shown in fig. 4, the method for controlling screen projection applied to the screen projection receiving end may include steps B1 to B3, wherein:
step B1, receiving a screen projection operation instruction triggered by a third party;
step B2, sending the screen-throwing operation instruction to a screen-throwing sending terminal through a screen-throwing instruction channel;
and step B3, receiving screen projection data returned by the screen projection sending end based on the screen projection operation instruction through a screen projection data channel, and carrying out screen projection display on the screen projection data.
Optionally, before the receiving of the screen-throwing operation instruction triggered by the third party, the method further includes: detecting a screen projection mode of the screen projection receiving terminal at present; receiving a screen projection channel establishing request sent by the screen projection sending end based on the screen projection mode; and when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel.
Optionally, when the screen projection mode is a wired AOA screen projection mode: the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes: receiving, by a wired AOA channel, a screen-casting channel creation request, which is sent by the screen-casting sending end and used for dividing the wired AOA channel into the screen-casting instruction channel and the screen-casting data channel, wherein the wired AOA channel is used for connecting the screen-casting sending end and the screen-casting receiving end; when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises: and when the screen projection channel creation request is legal, returning a message for representing the creation agreement to the screen projection sending end through the wired AOA channel so that the screen projection sending end divides the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, when the screen projection mode is a wireless network screen projection mode: the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes: generating and displaying a two-dimensional code containing address information of the screen projection receiving end; receiving a first screen-casting channel creation sub-request used for creating the screen-casting instruction channel and a second screen-casting channel creation sub-request used for creating the screen-casting data channel, which are sent by the screen-casting sending end based on the two-dimensional code; when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises: when the first screen throwing channel creation sub-request is legal, returning a message for representing that the screen throwing instruction channel is allowed to be created to the screen throwing sending terminal so that the screen throwing sending terminal creates the screen throwing instruction channel; and when the second screen projection channel creation sub-request is legal, returning a message for representing that the creation of the screen projection data channel is agreed to the screen projection sending end so that the screen projection sending end creates the screen projection data channel.
Example four
The fourth embodiment of the present invention further provides a screen-casting transmitting end, where the screen-casting transmitting end corresponds to part of the content of the first embodiment, and corresponding technical features and technical effects are not described in detail in this embodiment, and reference may be made to the first embodiment for relevant points. Specifically, fig. 5 shows a block diagram of a screen projection sending end according to a fourth embodiment of the present invention. As shown in fig. 5, the screen-casting transmitting terminal 500 may include a creating module 501, a first receiving module 502, and a first transmitting module 503, wherein:
a creating module 501, configured to create a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end;
a first receiving module 502, configured to receive, through the screen projecting instruction channel, a screen projecting operation instruction sent by the screen projecting receiving end;
the first sending module 503 is configured to capture the screen projection data pointed by the screen projection operation instruction, and send the screen projection data to the screen projection receiving end through the screen projection data channel.
Optionally, the creating module is specifically configured to: and sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in which the screen projection receiving end is positioned so as to create the screen projection instruction channel and the screen projection data channel.
Optionally, the creating module is specifically configured to, when executing that a screen projection channel creating request is sent to the screen projection receiving end based on a screen projection mode in which the screen projection receiving end is currently located, so as to create the screen projection instruction channel and the screen projection data channel: when the screen projection mode is a wired AOA screen projection mode, identifying a wired AOA channel for connecting the screen projection sending terminal and the screen projection receiving terminal; generating the screen projection channel creation request based on the wired AOA channel; and sending the screen projection channel creation request to the screen projection receiving end through the wired AOA channel so as to divide the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, when executing the creation request of the screen projection channel generated based on the wired AOA channel, the creation module is specifically configured to: determining a channel width of the wired AOA channel; dividing the channel width of the wired AOA channel into a first channel width and a second channel width, wherein the first channel width is used for representing the channel width of the screen projection instruction channel, and the second channel width is used for representing the channel width of the screen projection data channel; generating a screen-cast channel creation request including the first channel width and the second channel width.
Optionally, the creating module is specifically configured to, when executing that a screen projection channel creating request is sent to the screen projection receiving end based on a screen projection mode in which the screen projection receiving end is currently located, so as to create the screen projection instruction channel and the screen projection data channel: when the screen projection mode is a wireless network screen projection mode, determining address information of the screen projection receiving end; generating a first screen projection channel creation sub-request for creating the screen projection instruction channel, and sending the first screen projection channel creation sub-request to the address information to create the screen projection instruction channel; and generating a second screen projection channel creation sub-request for creating the screen projection data channel, and sending the second screen projection channel creation sub-request to the address information to create the screen projection data channel.
Optionally, the creating module is specifically configured to, when determining the address information of the screen projection receiving end: scanning the two-dimensional code provided by the screen projection receiving end; and identifying the IP address and the port number carried by the two-dimensional code as the address information of the screen projection receiving end.
EXAMPLE five
The fifth embodiment of the present invention further provides a screen projection receiving end, which corresponds to part of the content of the first embodiment, and corresponding technical features and technical effects are not described in detail in this embodiment, and reference may be made to the first embodiment for relevant points. Specifically, fig. 6 shows a block diagram of a screen projection receiving end according to a fifth embodiment of the present invention. As shown in fig. 6, the screen projection receiving end 600 may include a second receiving module 601, a second sending module 602, and a screen projection module 603, where:
the second receiving module 601 is configured to receive a screen projection operation instruction triggered by a third party;
a second sending module 602, configured to send the screen-casting operation instruction to a screen-casting sending end through a screen-casting instruction channel;
and the screen projection module 603 is configured to receive, through a screen projection data channel, screen projection data returned by the screen projection sending terminal based on the screen projection operation instruction, and perform screen projection display on the screen projection data.
Optionally, the screen projection receiving end further includes: the detection module is used for detecting the screen projection mode of the screen projection receiving end before receiving a screen projection operation instruction triggered by a third party; the third sending module is used for receiving a screen projection channel establishing request sent by the screen projection sending end based on the screen projection mode; and the fourth sending module is used for returning a message for representing the establishment approval to the screen-casting sending terminal when the screen-casting channel establishment request is legal, so that the screen-casting sending terminal establishes the screen-casting instruction channel and the screen-casting data channel.
Optionally, when the screen projection mode is a wired AOA screen projection mode: the third sending module is specifically configured to: receiving, by a wired AOA channel, a screen-casting channel creation request, which is sent by the screen-casting sending end and used for dividing the wired AOA channel into the screen-casting instruction channel and the screen-casting data channel, wherein the wired AOA channel is used for connecting the screen-casting sending end and the screen-casting receiving end; the fourth sending module is specifically configured to: and when the screen projection channel creation request is legal, returning a message for representing the creation agreement to the screen projection sending end through the wired AOA channel so that the screen projection sending end divides the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
Optionally, when the screen projection mode is a wireless network screen projection mode: the third sending module is specifically configured to: generating and displaying a two-dimensional code containing address information of the screen projection receiving end; receiving a first screen-casting channel creation sub-request used for creating the screen-casting instruction channel and a second screen-casting channel creation sub-request used for creating the screen-casting data channel, which are sent by the screen-casting sending end based on the two-dimensional code; the fourth sending module is specifically configured to: when the first screen throwing channel creation sub-request is legal, returning a message for representing that the screen throwing instruction channel is allowed to be created to the screen throwing sending terminal so that the screen throwing sending terminal creates the screen throwing instruction channel; and when the second screen projection channel creation sub-request is legal, returning a message for representing that the creation of the screen projection data channel is agreed to the screen projection sending end so that the screen projection sending end creates the screen projection data channel.
EXAMPLE six
Fig. 7 is a block diagram of a screen projection transmitting end or a screen projection receiving end according to a sixth embodiment of the present invention. In this embodiment, the screen-casting sending end or the screen-casting receiving end 700 may be a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server or a rack server (including an independent server or a server cluster formed by a plurality of servers), and the like, which execute programs. As shown in fig. 7, the screen-casting transmitting end or screen-casting receiving end 700 of this embodiment at least includes but is not limited to: a memory 701, a processor 702, and a network interface 703 that may be communicatively coupled to each other via a system bus. It is noted that fig. 7 only shows the screen projection sender or screen projection receiver 700 with components 701 and 703, but it is to be understood that not all of the shown components are required to be implemented, and more or fewer components may be implemented instead.
In this embodiment, the memory 703 includes at least one type of computer-readable storage medium, which includes flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. In some embodiments, the storage 701 may be an internal storage unit of the screen-casting transmitting end or the screen-casting receiving end 700, for example, a hard disk or a memory of the screen-casting transmitting end or the screen-casting receiving end 700. In other embodiments, the memory 701 may also be an external storage device of the screen projection sending end or the screen projection receiving end 700, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the screen projection sending end or the screen projection receiving end 700. Of course, the memory 701 may also include both an internal storage unit of the screen projection transmitting end or the screen projection receiving end 700 and an external storage device thereof. In this embodiment, the memory 701 is generally used to store an operating system and various application software installed on the screen projection transmitting end or the screen projection receiving end 700, for example, a program code of the screen projection control method in the second embodiment or the screen projection control method in the third embodiment.
Processor 702 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 702 is generally used to control the overall operation of the screen-casting transmitting terminal or the screen-casting receiving terminal 700. For example, control and processing related to data interaction or communication with the screen projection transmitting terminal or the screen projection receiving terminal 700 are performed. In this embodiment, the processor 702 is configured to execute the program code of the screen projection control method according to the second embodiment or the screen projection control method according to the third embodiment stored in the memory 701.
In this embodiment, the screen projection control method according to the second embodiment or the screen projection control method according to the third embodiment stored in the memory 701 may be further divided into one or more program modules and executed by one or more processors (in this embodiment, the processor 702) to complete the present invention.
The network interface 703 may include a wireless network interface or a wired network interface, and the network interface 703 is generally used to establish a communication link between the screen-casting sender or screen-casting receiver 700 and another screen-casting sender or screen-casting receiver. For example, the network interface 703 is used to connect the screen projection transmitting terminal or the screen projection receiving terminal 700 to an external terminal through a network, and establish a data transmission channel, a communication link, and the like between the screen projection transmitting terminal or the screen projection receiving terminal 700 and the external terminal. The network may be a wireless or wired network such as an Intranet (Intranet), the Internet (Internet), a Global System for mobile communication (GSM), Wideband Code Division Multiple Access (WCDMA), a 4G network, a 5G network, Bluetooth (Bluetooth), or Wi-Fi.
EXAMPLE seven
The present embodiment also provides a computer-readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., and a computer program is stored thereon, and when executed by a processor, the computer program implements the screen projection control method of the second embodiment or the steps of the screen projection control method of the third embodiment.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
It should be noted that the numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (14)

1. A screen projection control method is applied to a screen projection sending end, and comprises the following steps:
a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end are established;
receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel;
and capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel.
2. The method of claim 1, wherein the creating a screen-casting instruction channel and a screen-casting data channel between the screen-casting sending end and the screen-casting receiving end comprises:
and sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in which the screen projection receiving end is positioned so as to create the screen projection instruction channel and the screen projection data channel.
3. The method as claimed in claim 2, wherein the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in the screen projection receiving end to create the screen projection instruction channel and the screen projection data channel comprises:
when the screen projection mode is a wired AOA screen projection mode, identifying a wired AOA channel for connecting the screen projection sending terminal and the screen projection receiving terminal;
generating the screen projection channel creation request based on the wired AOA channel;
and sending the screen projection channel creation request to the screen projection receiving end through the wired AOA channel so as to divide the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
4. The method of claim 3, wherein generating the screen-cast channel creation request based on the wired AOA channel comprises:
determining a channel width of the wired AOA channel;
dividing the channel width of the wired AOA channel into a first channel width and a second channel width, wherein the first channel width is used for representing the channel width of the screen projection instruction channel, and the second channel width is used for representing the channel width of the screen projection data channel;
generating a screen-cast channel creation request including the first channel width and the second channel width.
5. The method as claimed in claim 2, wherein the sending a screen projection channel creation request to the screen projection receiving end based on the screen projection mode currently in the screen projection receiving end to create the screen projection instruction channel and the screen projection data channel comprises:
when the screen projection mode is a wireless network screen projection mode, determining address information of the screen projection receiving end;
generating a first screen projection channel creation sub-request for creating the screen projection instruction channel, and sending the first screen projection channel creation sub-request to the address information to create the screen projection instruction channel;
and generating a second screen projection channel creation sub-request for creating the screen projection data channel, and sending the second screen projection channel creation sub-request to the address information to create the screen projection data channel.
6. The method of claim 5, wherein the determining the address information of the screen-casting receiving end comprises:
scanning the two-dimensional code provided by the screen projection receiving end;
and identifying the IP address and the port number carried by the two-dimensional code as the address information of the screen projection receiving end.
7. A screen projection control method is applied to a screen projection receiving end, and comprises the following steps:
receiving a screen projection operation instruction triggered by a third party;
sending the screen-throwing operation instruction to a screen-throwing sending end through a screen-throwing instruction channel;
and screen projection data returned by the screen projection sending end based on the screen projection operation instruction are received through a screen projection data channel, and the screen projection data are subjected to screen projection display.
8. The method of claim 7, wherein prior to the receiving a third party triggered screen projection operation instruction, the method further comprises:
detecting a screen projection mode of the screen projection receiving terminal at present;
receiving a screen projection channel establishing request sent by the screen projection sending end based on the screen projection mode;
and when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel.
9. The method of claim 7, wherein when the screen projection mode is a wired AOA screen projection mode:
the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes:
receiving, by a wired AOA channel, a screen-casting channel creation request, which is sent by the screen-casting sending end and used for dividing the wired AOA channel into the screen-casting instruction channel and the screen-casting data channel, wherein the wired AOA channel is used for connecting the screen-casting sending end and the screen-casting receiving end;
when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises:
and when the screen projection channel creation request is legal, returning a message for representing the creation agreement to the screen projection sending end through the wired AOA channel so that the screen projection sending end divides the wired AOA channel into the screen projection instruction channel and the screen projection data channel.
10. The method of claim 7, wherein when the screen projection mode is a wireless network screen projection mode:
the receiving of the screen projection channel creation request sent by the screen projection sending terminal based on the screen projection mode includes:
generating and displaying a two-dimensional code containing address information of the screen projection receiving end;
receiving a first screen-casting channel creation sub-request used for creating the screen-casting instruction channel and a second screen-casting channel creation sub-request used for creating the screen-casting data channel, which are sent by the screen-casting sending end based on the two-dimensional code;
when the screen projection channel creation request is legal, returning a message for representing creation approval to the screen projection sending end so that the screen projection sending end creates the screen projection instruction channel and the screen projection data channel, wherein the message comprises:
when the first screen throwing channel creation sub-request is legal, returning a message for representing that the screen throwing instruction channel is allowed to be created to the screen throwing sending terminal so that the screen throwing sending terminal creates the screen throwing instruction channel;
and when the second screen projection channel creation sub-request is legal, returning a message for representing that the creation of the screen projection data channel is agreed to the screen projection sending end so that the screen projection sending end creates the screen projection data channel.
11. A screen projection sending terminal is characterized by comprising:
the creation module is used for creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end;
the first receiving module is used for receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel;
the first sending module is used for capturing screen projection data pointed by the screen projection operation instruction and sending the screen projection data to the screen projection receiving end through the screen projection data channel.
12. A screen projection receiving terminal, comprising:
the second receiving module is used for receiving a screen projection operation instruction triggered by a third party;
the second sending module is used for sending the screen-throwing operation instruction to a screen-throwing sending end through a screen-throwing instruction channel;
and the screen projection module is used for receiving screen projection data returned by the screen projection sending end based on the screen projection operation instruction through a screen projection data channel, and performing screen projection display on the screen projection data.
13. The utility model provides a throw screen control system which characterized in that, including throwing the screen transmitting terminal and throwing the screen receiving terminal, wherein:
the screen projection sending end is used for creating a screen projection instruction channel and a screen projection data channel between the screen projection sending end and the screen projection receiving end;
the screen projection receiving end is used for receiving a screen projection operation instruction triggered by a third party and sending the screen projection operation instruction to the screen projection sending end through the screen projection instruction channel;
the screen projection sending end is also used for receiving a screen projection operation instruction sent by the screen projection receiving end through the screen projection instruction channel, capturing screen projection data pointed by the screen projection operation instruction, and sending the screen projection data to the screen projection receiving end through the screen projection data channel;
the screen projection receiving end is further used for receiving screen projection data returned by the screen projection sending end based on the screen projection operation instruction through the screen projection data channel, and performing screen projection display on the screen projection data.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1 to 6 or the method of any one of claims 7 to 10.
CN202111211915.3A 2021-10-18 2021-10-18 Screen projection control method, screen projection sending end, screen projection receiving end and screen projection system Pending CN113961162A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114466239A (en) * 2022-01-30 2022-05-10 深圳创维－Rgb电子有限公司 Screen projection control method and device, screen projector and computer readable storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114466239A (en) * 2022-01-30 2022-05-10 深圳创维－Rgb电子有限公司 Screen projection control method and device, screen projector and computer readable storage medium

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