CN114760347A - Desktop sharing method, terminal and computer readable storage medium - Google Patents
Desktop sharing method, terminal and computer readable storage medium Download PDFInfo
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- CN114760347A CN114760347A CN202011596210.3A CN202011596210A CN114760347A CN 114760347 A CN114760347 A CN 114760347A CN 202011596210 A CN202011596210 A CN 202011596210A CN 114760347 A CN114760347 A CN 114760347A
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- 238000004590 computer program Methods 0.000 claims description 10
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- 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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The invention discloses a desktop sharing method, a terminal and a computer readable storage medium, wherein the desktop sharing method comprises the following steps: establishing a connection between a first terminal and at least one second terminal; extracting desktop information and audio information of the first terminal, converting the desktop information into a video stream data block, and converting the audio information into an audio stream data block; and sending the converted video stream data block and the converted audio stream data block to the at least one second terminal. According to the method, the desktop information and the audio information of the first terminal are transmitted to the second terminal in a sharing mode, and the second terminal only needs to receive the desktop information and does not need to receive the download file under the condition that the first terminal does not need to transmit the original file of the desktop information. The first terminal checks the multimedia file or opens other applications, and the second terminal can see the multimedia file, so that the sharing purpose is achieved, storage is not occupied, and the efficiency is improved.
Description
Technical Field
The invention relates to the field of communication, in particular to a desktop sharing method and a terminal.
Background
In a traditional terminal sharing mode, files need to be sent in a Bluetooth mode, a data mode and the like, and the purpose of sharing can be achieved only by storing the files to another terminal. In a short distance range, if a plurality of people need to check multimedia such as the same video, audio, pictures and files or share certain application interface operation (such as playing games), one main terminal cannot simultaneously meet the requirement of checking the multimedia by the plurality of people, the size of the current multimedia files is large, the files are sent by using traditional sharing modes such as Bluetooth and data, time is consumed, valuable storage space of the terminal is occupied, some multimedia files can be checked in real time without storage, and the efficiency is low by using the traditional sharing mode.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a desktop sharing method for sharing a terminal desktop in real time, a terminal and a computer readable storage medium.
In order to solve the technical problem, the technical scheme adopted by the invention comprises the following steps: a method of desktop sharing, comprising: establishing a connection between a first terminal and at least one second terminal; the method comprises the steps of obtaining desktop information and audio information of a first terminal, converting the desktop information into video stream data blocks, and converting the audio information into audio stream data blocks; and sending the video stream data block and the audio stream data block which are subjected to the code conversion to the second terminal.
A terminal comprising a memory, a processor and a computer program stored in said memory and executable on said processor, said processor implementing the steps of the desktop sharing method described above when executing said computer program.
The beneficial effects of utilizing the technical scheme at least comprise:
1. the invention solves the problem of low efficiency of the traditional sharing mode, and provides a method for sharing a desktop by a terminal. The first terminal checks the multimedia file or opens other applications, and the second terminal can see the multimedia file, so that the sharing purpose is achieved, storage is not occupied, and the efficiency is improved.
2. And linking the management terminal equipment through the Bluetooth, generating a queue for linking the second terminals, matching the broadcasting module with the display module, and sharing the desktop of the first terminal to a plurality of second terminals.
3. The invention uses different channels to respectively send and receive the audio data and the video data, has higher data transmission speed, improves the data transmission capacity to 800 percent, and greatly enhances the capacities of bandwidth, data packet size, transmission distance and the like.
4. By applying the Bluetooth technology, the invention has the advantages that a plurality of second terminals can receive audio and video signals simultaneously, the efficiency is higher, and the flexibility is good.
Drawings
FIG. 1 is a flow chart of a sharing method of the present invention;
FIG. 2 is a basic operation flow of sharing a desktop of a master terminal;
figure 3 is a schematic diagram of a master terminal according to an embodiment of the present invention,
figure 4 is a schematic diagram of a client according to an embodiment of the present invention,
fig. 5 is a flowchart of a method for implementing multi-terminal desktop sharing according to an embodiment of the present invention.
Fig. 6 is a diagram of a main terminal bluetooth desktop sharing UI interface according to an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
according to the invention, the terminal system can be provided with an interface, a desktop sharing menu is added in the Bluetooth link, and desktop sharing is initiated after the terminal equipment matched by Bluetooth is linked.
Bluetooth is a small-range wireless connection technology standard, which can implement various data communications between devices, and currently, the 5.0+ version of the bluetooth specification can support higher transmission rate, bandwidth, and larger data packets, so that thanks to the continuous update and increasingly powerful functions of the bluetooth technology, some experience requirements of users have been possible to implement. The invention provides a multi-terminal desktop sharing method for solving the problem of efficiency of a traditional sharing mode.
FIG. 1 is a flow chart of a method of desktop sharing of the present invention. As shown in fig. 1, the method of the present invention comprises:
step one, establishing connection between a first terminal and at least one second terminal.
In one embodiment, the specific method for establishing the connection is as follows:
the method comprises the steps that a first terminal and at least one second terminal are subjected to Bluetooth pairing, and desktop sharing is started after pairing is successful;
the method comprises the steps that a first terminal selects a second terminal to be subjected to desktop sharing from at least one second terminal to initiate a desktop sharing request;
and the first terminal completes the connection between the first terminal and the second terminal after receiving the desktop sharing request received by the second terminal.
And step two, obtaining desktop information and audio information of the first terminal, converting the desktop information into a video stream data block, and converting the audio information into an audio stream data block.
In one embodiment, the desktop information and the audio information may be obtained through a media interface (MediaCodec) and an audio interface (AudioRecord) of the system, the MediaCodec interface obtaining the desktop information and the AudioRecord interface obtaining the audio information. The conversion of the desktop information and the audio information into the video stream data block and the audio stream data block can be completed by encoding.
And sending the converted video stream data block and audio stream data block to at least one second terminal.
In one embodiment, the sending and receiving may be accomplished by a broadcast of the terminal, and the block of audio stream data may be broadcast to the second terminal over the first channel; the video stream data block may be broadcast to the second terminal over a second channel, the first channel and the second channel being different channels. In one embodiment, the first channel is a channel using LE Audio technology, and the second channel is a bluetooth broadcast channel.
In the specific embodiment of the invention, the first terminal and the second terminal can be interchanged, the first terminal is a main terminal of the desktop to be shared, and the second terminal is a client for receiving the shared desktop.
Fig. 2 is a basic operation flow of sharing a desktop of a master terminal. As shown in fig. 2, the basic operation flow of sharing the desktop of the master terminal is as follows:
the main terminal side starts a process of scanning and discovering the end point of the client side to obtain the equipment performance information of the client side (an Android system is needed, a Bluetooth module is arranged, the Bluetooth version of the equipment needs to support more than 5.0+ of Bluetooth, a CPU (central processing unit) of the system needs 8 cores and more than 2.0G, an RAM (random access memory) is more than 6G, the available memory is more than 3G, and the battery power is more than 30%);
according to the collected performance information of the client equipment, the equipment meeting the performance requirement is subjected to Bluetooth pairing, and then the main terminal initiates a desktop sharing request to the client. And the main terminal completes the connection between the main terminal and the client after receiving the desktop sharing request received by the client. After the main terminal is successfully connected with the client, desktop information and audio information of the main terminal are obtained, the desktop information is obtained again as a video stream data block, and the audio information is obtained again as an audio stream data block; the main terminal can send the video stream data block and the audio stream data block to the client through different channels, and after the video stream data block and the audio stream data block are sent, the connection between the main terminal and the client is disconnected; the main terminal and the client are disconnected when not needed;
and the client displays the received audio and video stream information through the receiving and displaying module.
The invention realizes the method of sharing the desktop of multiple terminals, the terminal has the function of bluetooth, the main terminal and N customer ends bluetooth pair and connect successfully, cooperate and use the broadcast module; the main terminal converts the captured desktop information and audio information into audio and video stream data and sends the audio and video stream data to the Nth client; and the Nth client displays the received audio and video stream.
The main terminal encodes the captured desktop information and audio information into an audio and video stream and sends the audio and video stream to the Nth client, and the specific implementation is as follows: the method comprises the steps that a main terminal respectively codes captured desktop information and audio information into a video stream data packet and an audio stream data packet, in order to enable audio and video streams to be synchronous, a time stamp method is used during coding, a reference clock is selected firstly, each audio stream data block and each video stream data block are stamped according to the reference clock during coding, the audio and video streams with the time stamps are sent to an Nth client through a broadcasting module, and the Nth client displays the audio and video streams which are pronounced through a receiving and displaying module.
The module for realizing the desktop sharing method between the main terminal and the client comprises the following steps:
(1) the device management module 101 is located at the main terminal and used for realizing connection between the main terminal and the client and management of the client, the device management module selects the number of links through Bluetooth pairing to generate a queue for linking the clients, and the number of the queue is 1, 2maxA client, wherein NmaxA client that is the maximum allowed link;
(2) the capturing module 102 is located at the main terminal and is used for capturing desktop information and audio information of the main terminal and encoding the desktop information and the audio information into a video stream data block and an audio stream data block; in order to synchronize audio and video streams, a timestamp method is used during the encoding of a capture module, a reference clock is selected firstly, a timestamp is marked on each audio stream data block and each video stream data block according to the reference clock during the encoding, and then the audio and video stream data blocks are sent to a broadcast module;
(3) the broadcasting module 103 is located at the main terminal, and in order to reduce the use pressure of the device and provide higher Audio service experience, the Audio stream data block is broadcasted to the plurality of clients through a first channel, and the first channel adopts an LE Audio technology; the video stream data block is broadcasted to the plurality of clients through a second channel, and the second channel is a Bluetooth broadcast channel; the broadcasting module is used for sending the audio and video stream data to the client receiving and displaying module;
(4) the device management module 201 is located at the client and used for realizing the connection between the client and the main terminal;
(5) the receiving and displaying module 202 is located at the client, and is used for receiving the audio stream data block and the video stream data block, and after receiving the audio stream data block and the video stream data block, the decoding needs to be separately performed; and then, synchronizing the audio and video stream, and adjusting the playing speed according to the audio and video stream timestamp and the reference clock during playing. And taking the reference clock as a standard, slowing down the playing speed when the playing is too fast, speeding up the playing speed when the playing is too slow, and finally displaying the audio and video stream data.
Fig. 3 is a schematic diagram of a master terminal according to an embodiment of the present invention. As shown in fig. 3, the master terminal 10 includes: a device management module 101, a capture module 102, and a broadcast module 103.
The device management module 101 establishes a connection between the host terminal 10 and the client 20, and the connection can be realized through bluetooth pairing. The device management module 101 includes:
the terminal scanning unit is used for scanning and discovering the client end point;
the terminal equipment parameter acquisition unit is used for acquiring the equipment performance parameters of the client;
the matching unit is used for matching the client with the performance parameters meeting the performance requirements with the main terminal; the equipment management unit generates a queue for linking the client by selecting the number of links through pairing;
the sharing request unit selects a client to be subjected to desktop sharing from the paired clients and initiates a desktop sharing request;
and the authority management unit is used for giving the authority of the first terminal to the second terminal so that the second terminal becomes the first terminal.
A capturing module 102, configured to capture desktop information and audio information of a host terminal, and in an embodiment, the desktop information and the audio information (similar to screen recording and recording functions) may be obtained through a media interface (MediaCodec) and an audio interface (AudioRecord) of the system; the desktop information and the audio information are respectively encoded and converted into an audio stream data block and a video stream data block, time stamps are stamped according to a reference clock, and then the audio stream data and the video stream data are sent to the broadcasting module 103.
The broadcast module 103 receives the link client queue success flag sent by the device management module 101, and when receiving the Audio/video stream data packet returned by the capture module 102, broadcasts the Audio/video stream data packet to each client 20 through a bluetooth broadcast channel and an LE Audio technology, and then is received and displayed by each client 20. The Audio/Video Remote Control protocol (AVRCP) Audio/Video Remote Control protocol is matched with the A2DP high-quality Audio Distribution protocol (Advances Audio Distribution protocol) to try to realize related Remote Control.
Device management module 101, through bluetooth pairing, generates a queue linking clients, corresponding to numbers 1, 2maxIndividual client, NmaxThe client which is the maximum allowed link; then, the generated link client queue is sent to the broadcast module 103; the module transmits information through a desktop sharing menu, and can disconnect a client in real time; the information is transmitted through the desktop sharing menu, the current desktop sharing can be disconnected, and the management authority of the main terminal can be transferred to a certain client. After the link is successful, the capture module 102 is called to capture the desktop information and the audio information of the main terminal.
Fig. 4 is a schematic diagram of a client according to an embodiment of the present invention. As shown in fig. 4, the client 20 includes: a device management module 201 and a reception display module 202.
The device management module 201 establishes a connection between the client 20 and the host terminal 10, and the connection function can be realized through bluetooth pairing. The device management module 201 may also be configured to exit the desktop sharing related management operation and reserve part of the functions that may be switched to the master terminal.
The receiving and displaying module 202, after receiving the success flag of the broadcasting module 103, is configured to prepare to receive the audio stream data block and the video stream data block sent by the main terminal desktop broadcasting module 103, and after receiving the audio stream data block and the video stream data block, separately decode the audio stream data block and the video stream data block, perform audio and video synchronization, and finally display the audio and video stream.
The device management module 201 is mainly used to quit the desktop sharing related management operation and reserve part of functions that may be switched to the master terminal.
Fig. 5 is a flowchart of a method for implementing multi-terminal desktop sharing according to an embodiment of the present invention, and as shown in fig. 5, the steps are:
s301, the master/client mobile terminal opens the Bluetooth successfully and clicks a desktop sharing menu to start sharing link configuration;
s302, the main terminal selects client equipment meeting performance conditions from a linkable terminal equipment list, and confirms the number of links which cannot exceed the maximum number of links; specifically, the device management module 101 corresponding to the master terminal 10;
s303, after the link is successful, sending a link success mark to the broadcasting module 103, and calling the capturing module 102;
s304, the main terminal captures desktop information and audio information codes and respectively converts the desktop information and the audio information codes into video stream data blocks and audio stream data blocks, time stamps are stamped on each audio stream data block and each video stream data block during coding, and the audio stream data blocks and the video stream data blocks are sent to each client through a sending module; in particular the acquisition module 102 corresponding to the master terminal 10;
s305, after the sending module 103 receives the successful flag of linking the client queue, when it starts to prepare to receive the audio/video stream data packet returned by the capturing module 102, the specific main component corresponds to the sending module 103.
S306, the client receives and decodes the audio and video stream data, then performs audio and video synchronization, finally displays the audio and video stream, and starts to share the desktop; a receiving and displaying module 202 specifically corresponding to the client 20;
and S307, after the sharing is finished, the main terminal and all the clients need to disconnect the links, and the desktop sharing process is stopped.
The sharing method of the invention is operated through a UI user display interface. The embodiment of the invention adds a terminal system setting- > Bluetooth- > sharing desktop menu, and then adds various terminal sharing control device management functions corresponding to a device management module, wherein various terminals comprise a mobile terminal and a fixed terminal, including but not limited to a mobile phone, a computer and the like.
The device management function of the terminal sharing control may include:
(1) a linking device: the client-sides can be linked or disconnected in real time, and the management authority of the main terminal can be transferred (after the conversion, the main terminal is changed into the client-side, and the transferred client-side is changed into the main terminal);
(2) device management: the method comprises the steps of limiting the maximum number of the link terminals and the link time, setting the privacy desktop app (after setting, hiding the app application interface and notification, or only displaying the app application interface and notification on a main terminal), setting a client remark name, setting an anti-disturbance mode (for example, an incoming call or information is not displayed, and the like), exiting from a shared desktop, and the like.
The present embodiments also provide a computer-readable storage medium including volatile or non-volatile, removable or non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, computer program modules or other data. Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact disk Read-Only Memory), Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The computer readable storage medium in this embodiment may be used to store one or more computer programs, and the stored one or more computer programs may be executed by a processor to implement at least one step of the method for multi-terminal desktop sharing in the above embodiment.
It will be apparent to those skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software (which may be implemented in computer program code executable by a computing device), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
In addition, communication media typically embodies computer readable instructions, data structures, computer program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to one of ordinary skill in the art. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of embodiments of the present invention, and the present invention is not to be considered limited to such descriptions. For those skilled in the art to which the invention pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the invention, which shall be deemed to belong to the scope of the invention.
Claims (9)
1. A method of desktop sharing, comprising:
establishing a connection between a first terminal and at least one second terminal;
extracting desktop information and audio information of the first terminal, converting the desktop information into a video stream data block, and converting the audio information into an audio stream data block;
and sending the converted video stream data block and the converted audio stream data block to the at least one second terminal.
2. The method of claim 1, wherein: the method further comprises the following steps:
and after the first terminal establishes connection with the at least one second terminal, when receiving an authority switching command, switching the management authority of the first terminal to a target second terminal in the at least one second terminal.
3. The method of claim 1, wherein the method for establishing the connection between the first terminal and the at least one second terminal comprises:
the first terminal and at least one second terminal are paired in a Bluetooth mode;
after the pairing is successful, the first terminal selects at least one second terminal to be subjected to desktop sharing and initiates a desktop sharing request;
and after the first terminal receives the desktop sharing request received by the at least one second terminal, the connection between the first terminal and the at least one second terminal is established.
4. The method of claim 3, wherein: the method for the first terminal to perform Bluetooth pairing with at least one second terminal comprises the following steps:
scanning and discovering the at least one second terminal endpoint;
obtaining a device performance parameter of the at least one second terminal;
and pairing the at least one second terminal with the first terminal, wherein the equipment performance parameters of the at least one second terminal meet the performance requirements.
5. The method of claim 1, wherein:
initiating a desktop sharing request to the at least one second terminal through a desktop sharing menu displayed in the first terminal; and the first terminal and the at least one second terminal transmit messages through the desktop sharing menu, so that the connection with the at least one second terminal or the current desktop sharing is disconnected in real time, and the management authority of the first terminal is given to the at least one second terminal.
6. The method of claim 1, wherein: the method for sending the video stream data block and the audio stream data block to at least one second terminal comprises the following steps:
broadcasting the audio stream data block to the at least one second terminal through the first channel; broadcasting the video stream data block to the at least one second terminal through a second channel; the first channel and the second channel are different channels.
7. The method of claim 1, wherein: the desktop information is converted into a video stream data block by adopting a first coding mode, and the audio information is converted into an audio stream data block by adopting a second coding mode; and coding the desktop information and the audio information by using the time stamp to obtain a video stream data block and an audio stream data block with the time stamp.
8. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1-7 when executing the computer program.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024065449A1 (en) * | 2022-09-29 | 2024-04-04 | 京东方科技集团股份有限公司 | Data sharing display method and intelligent display system |
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| WO2024065449A1 (en) * | 2022-09-29 | 2024-04-04 | 京东方科技集团股份有限公司 | Data sharing display method and intelligent display system |
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