WO2018018965A1

WO2018018965A1 - Screen sharing method, device, and system

Info

Publication number: WO2018018965A1
Application number: PCT/CN2017/081954
Authority: WO
Inventors: 高静波
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-07-25
Filing date: 2017-04-26
Publication date: 2018-02-01
Also published as: CN107659835A

Abstract

Embodiments of the present invention provide a screen sharing method. The method comprises: a first terminal acquiring server permission; acquiring an address of at least one second terminal according to the server permission, encapsulating the address, and sending the encapsulated address to a router; and converting screen content into a video stream and sending the video stream to the router. The embodiments of the present invention also provide a screen sharing device and system.

Description

Screen sharing method, device and system

Technical field

The present disclosure relates to the field of wireless communications, and in particular, to a screen sharing method, device, and system.

Background technique

Terminals have become an indispensable tool for people's daily work, life, entertainment, etc. We often need to share some video and audio with others through the terminal, and hope that others can manipulate the shared content.

Currently, screen sharing can be realized by Miracast technology, Digital Living Network Alliance (DLNA) protocol, and AirPlay technology. Among them, Miracast technology was launched by the Wi-Fi Alliance in 2012. It is a wireless display standard based on Wi-Fi direct. Devices supporting this standard can share video images wirelessly. Specifically, the technology passes Wi-Fi. Fi CERTIFIED Wi-Fi Direct forms a connection that enables real-time screen sharing between two Wi-Fi devices wirelessly without routing or access to any Wi-Fi network, and is not subject to transmission of content or transmission formats. Restrictions, but the technology can only achieve a one-to-one interconnection and sharing.

The DLNA protocol is an agreement between Sony, Intel, Microsoft, etc. based on the interconnection between personal computers (PCs), mobile devices, and consumer appliances. Their mission is to "enjoy music, photos and videos anytime, anywhere", but DLNA is not a real-time transmission, but is pre-buffered for a short period of time before the data is transmitted, so DLNA can only transfer pictures, videos, music on mobile devices.

AirPlay is a wireless technology developed by Apple that can wirelessly transmit pictures, audio and video on iOS devices such as iPhone, iPad and iPod touch to AirPlay-enabled devices via Wi-Fi. Although functionally similar to Miracast, Apple's AirPlay is currently only available for certified Apple devices. The main support for this technology is Apple's own devices, including iPad, iPhone, Apple TV, etc., as well as some Apples. Authorized partner's device.

Therefore, there is no real-time screen sharing method capable of realizing one-to-many in the prior art.

Summary of the invention

In view of this, embodiments of the present disclosure are expected to provide a screen sharing method, device, and system to implement a one-to-many screen sharing function.

The technical solution of the embodiment of the present disclosure is implemented as follows:

A screen sharing method includes:

The first terminal acquires server authority;

The first terminal acquires an address of the at least one second terminal according to the server authority, and encapsulates the address and sends the address to the router;

The first terminal processes the screen content as a video stream and sends the content to the router.

In the method as described above, the obtaining, by the first terminal, the server rights includes:

The first terminal sends a screen sharing request to the router;

The first terminal acquires the server authority issued by the router according to the screen sharing request.

The method, as described above, before the first terminal sends a screen sharing request to the router, the method further includes:

The first terminal sends a query request to the router, where the query request is used to query whether at least one second terminal having a screen sharing function accesses the router;

The first terminal receives a query reply sent by the at least one second terminal that is sent by the router and has a screen sharing function.

The method as described above, before the first terminal processes the screen content into a video stream and sends the content to the router, the method further includes:

The first terminal and the at least one second terminal perform audio and video capabilities and control capability negotiation.

The method as described above, after the first terminal processes the screen content into a video stream and sends the content to the router, the method further includes:

The first terminal sends an end screen sharing request to the router.

A screen sharing method includes:

The router sends the server authority to the first terminal;

The router receives the encapsulated address sent by the first terminal, parses the encapsulated address, and sends a screen sharing invitation to the at least one second terminal according to the parsed address;

The router receives the video stream sent by the first terminal, and sends the video stream to the at least one second terminal by means of a broadcast.

The method as described above, before the router issues the terminal server authority, the method further includes:

The router receives a screen sharing request sent by the first terminal.

The method as described above, before the router receives the screen sharing request sent by the terminal, the method further includes:

The router receives a query request sent by the first terminal;

The router queries, according to the query request, whether there is at least one second terminal access with a screen sharing function;

When the router determines that there is at least one second terminal access with a screen sharing function, a query reply is sent to the first terminal.

The method as described above, after the router receives the video stream sent by the first terminal and sends the video stream to the at least one second terminal by means of a broadcast, the method further includes:

The router receives an end screen sharing request sent by the first terminal or any of the second terminals, and stops sending and receiving of shared data.

A screen sharing method includes:

The second terminal receives a screen sharing invitation sent by the router;

Receiving, by the second terminal, a video stream that is sent by the router by using a broadcast manner, and performing processing to present the first terminal Enjoy the screen content.

The method, as described above, before the second terminal receives the video stream sent by the router, the method further includes:

The second terminal negotiates with the first terminal for audio and video capabilities and control capabilities.

The method as described above, after the second terminal is processed to present the screen content shared by the first terminal, the method further includes:

The second terminal sends an end screen sharing request to the router.

A first terminal includes:

a first obtaining module, configured to acquire server authority, and obtain an address of the at least one second terminal according to the server authority;

a first processing module, configured to encapsulate the address; process the screen content into a video stream;

The first sending module is configured to send the encapsulated address to the router, and send the video stream to the router.

The first terminal, as described above, the first sending module is further configured to send a screen sharing request to the router;

The first obtaining module is further configured to acquire server authority that is sent by the router according to the screen sharing request.

The first terminal as described above further includes a first receiving module,

The first sending module is further configured to send a query request to the router, where the query request is used to query whether at least one second terminal having a screen sharing function accesses the router;

The first receiving module is configured to receive a query reply sent by the at least one second terminal that is sent by the router and has a screen sharing function.

The first terminal, as described above, the first processing module is further configured to perform audio-visual capability and control capability negotiation with the at least one second terminal.

The first terminal, as described above, the first sending module is further configured to send an end screen sharing request to the router.

A router that includes:

a second sending module, configured to send the server permission to the first terminal; send the screen sharing invitation to the at least one second terminal according to the parsed address; and send the video stream to the at least one Second terminal

a second receiving module, configured to receive a encapsulated address sent by the first terminal, and receive a video stream sent by the first terminal;

The second processing module is configured to parse the encapsulated address.

The router according to the above, the second receiving module is further configured to receive a screen sharing request sent by the first terminal.

The router, as described above, the second receiving module is further configured to receive a query request sent by the first terminal;

The second processing module is further configured to: according to the query request, query whether there is at least one second terminal access having a screen sharing function;

The second sending module is further configured to: determine that there is access to at least one second terminal having a screen sharing function At the time, a query reply is sent to the first terminal.

The router as described above, the second receiving module is further configured to receive an end screen sharing request sent by the first terminal or any of the second terminals;

The second processing module is further configured to stop sending and receiving of shared data.

A second terminal includes:

a third receiving module, configured to receive a screen sharing invitation sent by the router, and receive a video stream that is sent by the router by using a broadcast manner;

And a third processing module, configured to process the video stream, and present screen content shared by the first terminal.

The second terminal, as described above, the third processing module is further configured to perform audio-visual capability and control capability negotiation with the first terminal.

The second terminal as described above further includes:

And a third sending module, configured to send an end screen sharing request to the router.

A screen sharing system includes a first terminal, the router, and the second terminal as described above.

The screen sharing method, device and system provided by the embodiment of the present disclosure include: the first terminal acquires server authority; acquires an address of at least one second terminal according to the server authority, encapsulates the address and sends the address to the router; and processes the screen content as The video stream is sent to the router; thus, the purpose of sharing the screen content of the first terminal with the at least one second terminal is achieved.

DRAWINGS

1 is a flowchart of Embodiment 1 of a screen sharing method according to the present disclosure;

2 is a flowchart of Embodiment 2 of a screen sharing method according to the present disclosure;

3 is a flowchart of Embodiment 3 of a screen sharing method according to the present disclosure;

4 is a flowchart of Embodiment 4 of a screen sharing method according to the present disclosure;

FIG. 5 is a flowchart of Embodiment 5 of a screen sharing method according to the present disclosure;

6 is a flowchart of Embodiment 6 of a screen sharing method according to the present disclosure;

7 is a schematic diagram of a general format of a frame in the 802.11 protocol;

FIG. 8 is a schematic structural diagram of Embodiment 1 of a first terminal according to the present disclosure;

9 is a schematic structural diagram of Embodiment 2 of the first terminal of the present disclosure;

10 is a schematic structural diagram of an embodiment of a router according to the present disclosure;

11 is a schematic structural diagram of Embodiment 1 of a second terminal according to the present disclosure;

FIG. 12 is a schematic structural diagram of Embodiment 2 of a second terminal according to the present disclosure.

detailed description

Embodiment 1

FIG. 1 is a flowchart of Embodiment 1 of a screen sharing method according to the present disclosure. As shown in FIG. 1, the method package provided in this embodiment include:

Step 101: Obtain server permissions.

Step 102: Acquire an address of at least one second terminal according to the server authority, encapsulate the address, and send the address to the router.

Step 103: Process the screen content into a video stream and send it to the router.

The screen sharing method provided by the embodiment, when the user needs to perform screen sharing, obtains the server authority by using the first terminal; acquires the address of the at least one second terminal according to the server authority, encapsulates the address and sends the address to the router; and processes the screen content The video stream is sent to the router, thereby achieving the purpose of sharing the screen content of the first terminal with the at least one second terminal.

Embodiment 2

FIG. 2 is a flowchart of Embodiment 2 of a screen sharing method according to the present disclosure. As shown in FIG. 2, the method provided in this embodiment includes:

Step 201: Send a query request to the router, where the query request is used to query whether there is at least one second terminal access router having a screen sharing function.

Step 202: Receive a query reply sent by the at least one second terminal that has a screen sharing function sent by the router.

Step 203: Send a screen sharing request to the router.

Step 204: Obtain the server authority issued by the router according to the screen sharing request.

Step 205: Acquire an address of at least one second terminal according to the server authority, encapsulate the address, and send the address to the router.

Specifically, the first router accesses media access control (Media Access Control, at least one second terminal) through an Extensible Markup Language (XML) format or a HyperText Transfer Protocol (HTTP) format. The MAC address and the Internet Protocol (IP) address are encapsulated and sent to the router.

Step 206: Perform audio-visual capability and control capability negotiation with at least one second terminal.

Specifically, after the screen sharing relationship is established, the first terminal and the at least one second terminal perform the negotiation of the audio and video capabilities and the control capability on the IP layer, and the negotiated content includes Real Time Streaming Protocol (RTSP). Negotiation of transmission capability negotiation, screen sharing relationship establishment and management negotiation by video streaming protocol, user input back channel (UIBC) technology, remote I2C reading and writing (Remote I2C Read/ Write) technology or high-bandwidth digital content protection (HDCP) for control data transmission negotiation.

Step 207: Process the screen content into a video stream and send it to the router.

Specifically, the picture and sound of the first terminal are compressed, and the compressed video data is repackaged into a Packetized Elementary Stream (PES) format, and then encrypted by HDCP technology, and then in MPEG2-TS format. Convergence of video and audio data, followed by real-time transport protocol (Real-time Transport The header of the Protocol (RTP) is finally transmitted by the User Datagram Protocol (UDP)/IP protocol.

Step 208: Send an end screen sharing request to the router.

Specifically, when the user wants to end the sharing of the screen content, the end screen sharing request is sent to the router through the first path terminal.

The screen sharing method provided by the embodiment, before the user needs to perform screen sharing, first determines that at least one second terminal accessing the router having the screen sharing function; and then obtaining the server authority by using the first terminal; and acquiring at least one according to the server authority The address of the second terminal encapsulates the address and sends it to the router; and then negotiates with the at least one second terminal for audio and video capabilities and control capabilities; processes the screen content as a video stream and sends it to the router; when the user needs to end the screen sharing, End screen sharing request is sent to the router by the first terminal; thereby realizing sharing of the screen content of the first terminal to the at least one second terminal when sharing is required, and ending the screen sharing when sharing is not required.

Embodiment 3

FIG. 3 is a flowchart of Embodiment 3 of a screen sharing method according to the present disclosure. As shown in FIG. 3, the method provided in this embodiment includes:

Step 301: Issue server rights to the first terminal.

Step 302: Receive the encapsulated address sent by the first terminal, parse the encapsulated address, and send the screen sharing invitation to the at least one second terminal according to the parsed address.

Step 303: Receive a video stream sent by the first terminal, and send the video stream to the at least one second terminal by means of a broadcast.

In the screen sharing method provided by the embodiment, the server sends the server permission to the first terminal, receives the encapsulated address sent by the first terminal, parses the encapsulated address, and sends the screen sharing invitation to the parsed address according to the parsed address. And at least one second terminal; receiving the video stream sent by the first terminal, and transmitting the video stream to the at least one second terminal by using a broadcast; thereby achieving the purpose of sharing the screen content of the first terminal with the at least one second terminal.

Embodiment 4

FIG. 4 is a flowchart of Embodiment 4 of a screen sharing method according to the present disclosure. As shown in FIG. 4, the method provided in this embodiment includes:

Step 401: Receive a query request sent by the first terminal.

Step 402: Query whether there is at least one second terminal access with a screen sharing function according to the query request.

Step 403: When the router determines that there is at least one second terminal with the screen sharing function, the query sends a query reply to the first terminal.

Step 404: Receive a screen sharing request sent by the first terminal.

Step 405: Deliver server authority to the first terminal.

Step 406: Receive the encapsulated address sent by the first terminal, parse the encapsulated address, and send the screen sharing invitation to the at least one second terminal according to the parsed address.

Specifically, the router parses the encapsulated address and parses out the MAC address and IP address of the second terminal. After that, a screen sharing invitation will be sent to these second terminals respectively.

Step 407: Receive a video stream sent by the first terminal, and send the video stream to the at least one second terminal by means of a broadcast.

Step 408: Receive an end screen sharing request sent by the first terminal or any second terminal, and stop sending and receiving the shared data.

In the screen sharing method provided by the embodiment, the router determines that there is at least one second terminal having the screen sharing function before receiving the screen sharing sent by the first terminal; and then sending the server authority to the first terminal; receiving the first The encapsulated address sent by the terminal parses the encapsulated address, and sends a screen sharing invitation to the at least one second terminal according to the parsed address; and then receives the video stream sent by the first terminal, and sends the broadcast by the broadcast mode. Receiving at least one second terminal; receiving an end screen sharing request sent by the first terminal or any second terminal, stopping transmission and reception of shared data; thereby realizing sharing the screen content of the first terminal to at least one when sharing is required On the second terminal, the purpose of ending the screen sharing when sharing is not required.

Embodiment 5

FIG. 5 is a flowchart of Embodiment 5 of a screen sharing method according to the present disclosure. As shown in FIG. 5, the method provided in this embodiment includes:

Step 501: Receive a screen sharing invitation sent by the router.

Step 502: Receive a video stream that is sent by the router by using a broadcast manner, and process the screen content shared by the first terminal.

In the screen sharing method provided by the embodiment, the second terminal receives the screen sharing invitation sent by the router, and receives the video stream sent by the router through the broadcast mode, and processes the screen content shared by the first terminal; thereby realizing sharing the content of the first terminal screen. the goal of.

Embodiment 6

FIG. 6 is a flowchart of Embodiment 6 of a screen sharing method according to the present disclosure. As shown in FIG. 6, the method provided in this embodiment includes:

Step 601: Receive a screen sharing invitation sent by the router.

Step 602: Perform audio-visual capability and control capability negotiation with the first terminal.

Step 603: Receive a video stream that is sent by the router by using a broadcast, and process the content of the screen shared by the first terminal.

Specifically, after receiving the video stream, the second terminal restores the image and sound data shared by the first terminal by reverse decapsulation, division of labor, HDCP decryption, and decompression, and presents the screen content shared by the first terminal.

Step 604: Send an end screen sharing request to the router.

Specifically, when the user does not want to receive the shared screen content again, the end screen sharing request is sent to the router through the second path terminal.

In the screen sharing method provided by the embodiment, the second terminal receives the screen sharing invitation sent by the router; performs the audio-visual capability and the control capability negotiation with the first terminal; and receives the video stream that is sent by the router through the broadcast mode, and processes and presents the shared by the first terminal. Screen content; thereby enabling the screen sharing content of the first terminal to be received when needed, without At the end of the purpose of receiving the screen sharing content of the first terminal.

The present disclosure further provides an embodiment showing an interaction process between the first terminal, the router, and the second terminal, as follows:

The first terminal sends a query request to the router, where the query request is used to query whether there is at least one second terminal access router having a screen sharing function;

The router receives the query request sent by the first terminal, and queries whether there is at least one second terminal access with a screen sharing function according to the query request; when the router determines that there is at least one second terminal with the screen sharing function, the first The terminal sends a query reply;

The first terminal sends a screen sharing request to the router;

The router receives the screen sharing request sent by the first terminal, and sends the server permission to the first terminal;

The first terminal acquires the server authority issued by the router, and obtains the address of the at least one second terminal according to the server authority, and encapsulates the address and sends the address to the router;

Receiving, by the router, the encapsulated address sent by the first terminal, parsing the encapsulated address, and sending the screen sharing invitation to the at least one second terminal according to the parsed address;

The second terminal receives a screen sharing invitation sent by the router;

The first terminal and the second terminal that receives the invitation to share the screen perform the audio-visual capability and the control capability negotiation, and process the screen content according to the negotiation result into a video stream that can be normally received and displayed by the first terminal and the second terminal, and sent to the router;

The router receives the video stream sent by the first terminal, and sends the video stream to the second terminal by means of broadcast;

The second terminal receives the video stream sent by the router through the broadcast mode, and processes the screen content shared by the first terminal.

The router receives the end screen sharing request sent by the first terminal or the second terminal, and stops the sending and receiving of the shared data.

The screen sharing method provided by the embodiment of the present disclosure is based on an application on a wireless router and a terminal device, and utilizes Wi-Fi data broadcasting of a router to reduce the occupation of a data channel and improve the transmission efficiency of the router even when an image with a large amount of data is performed. When transmitting, the user experience can also be guaranteed, thereby realizing the sharing of screen content between multiple end users in the local area network.

It should be noted that there are three types of frames in the 802.11 protocol of the wireless local area network: a management frame (for example, a Beacon frame, an association frame), a control frame (such as an RTS frame, a CTS frame, an ACK frame), and data. A data frame, where the management frame is mainly used for negotiation and relationship control between the base station and the access point, such as association, authentication, synchronization, etc.; the control frame is mainly used to assist the transmission of data frames, and can also be used for management and control. The access of the medium (but not the medium itself), as well as the reliability of the MAC layer; the data frame is mainly used as a carrier of data for transmitting data. Figure 7 is a schematic diagram of a common format of a frame in the 802.11 protocol. As shown in Figure 7, the type field in the frame control identifies which field the frame belongs to. The destination MAC address can be a unicast address, a multicast address, or a broadcast address.

Although the Wi-Fi direct-based Miracast technology also broadcasts messages, the broadcast content is only a signaling report. The text, such as the beacon frame, is mainly used to notify the existence of the network access point, and the data packet actually used for data transmission is in the form of point-to-point unicast, and the MAC address of the frame is the MAC address of the receiving end. Traditional routers support one-to-many connections, but channel congestion occurs when one-to-many connections occur. Although the router has multiple channels available, when it is powered on, it will fix the used channel and interact with the client accessed through Wi-Fi. At this time, the data is sent by unicast instead of broadcast. The destination address of the broadcasted data packet is the MAC address of the receiving base station subsystem, and the Wi-Fi uses the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) method to transmit data. When there is data transmission on the channel, other users need to wait for the router channel to idle to transmit data, that is, when multiple users access the router, and one of the users needs to send data to the router, it needs to listen to whether there is other on the channel. The user is sending data. If it exists, the user will roll back for a period of time and then listen; if it does not exist, the user will occupy the channel for data transmission. Therefore, the more users access the router, the lower the overall rate of the device, that is, the lower the data throughput, and the more crowded the channel. The present disclosure uses the broadcast method to send data packets, and only one broadcast packet is sent out at a time, that is, the destination MAC address of the data frame is FF: FF: FF: FF: FF, which is commonly received by everyone, thereby avoiding the above situation. Occurs, enhancing the data experience for all access users.

FIG. 8 is a schematic structural diagram of Embodiment 1 of the first terminal of the present disclosure. As shown in FIG. 8, the first terminal provided in this embodiment includes:

The first obtaining module 10 is configured to acquire server authority, and obtain an address of the at least one second terminal according to the server authority;

The first processing module 11 is configured to encapsulate the address; process the screen content into a video stream;

The first sending module 12 is configured to send the encapsulated address to the router, and send the video stream to the router.

The first terminal provided in this embodiment may be used to implement the technical solution in the first embodiment of the foregoing method, and the implementation principle and technical effects are similar, and details are not described herein again.

FIG. 9 is a schematic structural diagram of Embodiment 2 of the first terminal of the present disclosure. As shown in FIG. 9, the first terminal provided in this embodiment includes:

The first obtaining module 10 is configured to obtain the server authority, obtain the address of the at least one second terminal according to the server authority, and obtain the server authority issued by the router according to the screen sharing request.

The first processing module 11 is configured to encapsulate the address, process the screen content into a video stream, and perform audio-visual capability and control capability negotiation with the at least one second terminal.

The first sending module 12 is configured to send a query request to the router, where the query request is used to query whether at least one second terminal having a screen sharing function accesses the router; and send the encapsulated address to the router. Send the video stream to the router; send a screen sharing request to the router; send an end screen sharing request to the router.

The first receiving module 13 is configured to receive a query reply sent by the at least one second terminal that is sent by the router and has a screen sharing function.

The first terminal provided in this embodiment may be used to implement the technical solution of the foregoing method embodiment 2, and the implementation principle thereof The technical effects are similar and will not be described here.

In a practical application, the first acquiring module 10, the first processing module 11, the first sending module 12, and the first receiving module 13 may be central processing units (CPUs) located in the first terminal, and micro processing Realizer (Micro Processor Unit, MPU), Digital Signal Processor (DSP) or Field Programmable Gate Array (FPGA).

FIG. 10 is a schematic structural diagram of an embodiment of a router according to the present disclosure. As shown in FIG. 10, the router provided in this embodiment includes:

The second sending module 20 is configured to send the server permission to the first terminal, send the screen sharing invitation to the at least one second terminal according to the parsed address, and send the video stream to the at least one second terminal by means of broadcast.

The second receiving module 21 is configured to receive the encapsulated address sent by the first terminal, and receive the video stream sent by the first terminal.

The second processing module 22 is configured to parse the encapsulated address.

The router provided in this embodiment may be used to implement the technical solution in the third embodiment of the foregoing method, and the implementation principle and technical effects are similar, and details are not described herein again.

Further, the second receiving module 21 is further configured to receive a screen sharing request sent by the first terminal.

Further, the second receiving module 21 is further configured to receive a query request sent by the first terminal;

The second processing module 22 is further configured to: according to the query request, query whether there is at least one second terminal access having a screen sharing function;

The second sending module 20 is further configured to send a query reply to the first terminal when it is determined that the at least one second terminal having the screen sharing function exists.

Further, the second receiving module 21 is further configured to receive an end screen sharing request sent by the first terminal or any second terminal;

The second processing module 22 is further configured to stop sending and receiving of shared data.

The router provided in this embodiment may be used to implement the technical solution in the fourth embodiment of the foregoing method, and the implementation principle and the technical effect are similar, and details are not described herein again.

In a practical application, the second sending module 20, the second receiving module 21, and the second processing module 22 can all be implemented by a CPU, an MPU, a DSP, an FPGA, or the like located in a router.

FIG. 11 is a schematic structural diagram of Embodiment 1 of a second terminal according to the present disclosure. As shown in FIG. 11, the second terminal provided in this embodiment includes:

The third receiving module 30 is configured to receive a screen sharing invitation sent by the router, and receive a video stream that is sent by the router by using a broadcast manner.

The third processing module 31 is configured to process the video stream and present the screen content shared by the first terminal.

The second terminal provided in this embodiment may be used to implement the technical solution in the foregoing method embodiment 5. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 12 is a schematic structural diagram of Embodiment 2 of a second terminal according to the present disclosure. As shown in FIG. 12, the second embodiment provided by this embodiment The terminal includes:

The third processing module 31 is configured to perform audio-visual capability and control capability negotiation with the first terminal, process the video stream, and present the screen content shared by the first terminal.

The third sending module 32 is configured to send an end screen sharing request to the router.

The second terminal provided in this embodiment may be used to perform the technical solution of the foregoing method embodiment 6. The implementation principle and technical effects are similar, and details are not described herein again.

In a practical application, the third receiving module 30, the third processing module 31, and the third sending module 32 can all be implemented by a CPU, an MPU, a DSP, an FPGA, or the like located in the second terminal.

The embodiment of the present disclosure further provides a screen sharing system, which is composed of any one of the foregoing first terminals, any type of router, and any type of second terminal, and details are not described herein again.

In another embodiment of the present disclosure, a screen sharing device is further provided, including: a processor; a memory for storing instructions executable by the processor; and the processor for storing according to the memory The instruction performs an action, the action includes: obtaining a server authority; acquiring an address of the at least one second terminal according to the server authority, encapsulating the address and transmitting the address to the router; processing the screen content into a video stream, and sending the content to the video stream The router.

In still another embodiment of the present disclosure, a screen sharing device is provided, including: a processor; a memory for storing instructions executable by the processor; and the processor for storing according to the memory The instruction performs an action, the action includes: issuing a server authority to the first terminal; receiving the encapsulated address sent by the first terminal, parsing the encapsulated address, and displaying the screen according to the parsed address The sharing invitation is sent to the at least one second terminal; the video stream sent by the first terminal is received and sent to the at least one second terminal by means of a broadcast.

In still another embodiment of the present disclosure, a screen sharing device is provided, including: a processor; a memory for storing instructions executable by the processor; and the processor for storing according to the memory The instruction performs an action, the action includes: receiving a screen sharing invitation sent by the router; receiving a video stream sent by the router by using a broadcast manner, and processing the screen content shared by the first terminal after processing.

In an embodiment of the present disclosure, there is also provided a computer storage medium, which may store an execution instruction for performing an implementation of any of the screen sharing methods of the above embodiments.

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing device to produce A machine that causes instructions executed by a processor of a computer or other programmable data processing device to generate means for implementing the functions specified in one or more blocks of a flow or in a block or blocks of a flow diagram .

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present disclosure, and is not intended to limit the scope of the disclosure.

Industrial applicability

The screen sharing method provided by the embodiment of the present disclosure is applicable to the terminal device that communicates with the router, obtains the server authority by using the first terminal, acquires the address of the at least one second terminal according to the server authority, and encapsulates the address and sends the address to the router. The screen content is processed into a video stream and sent to the router; thus, the purpose of sharing the screen content of the first terminal with the at least one second terminal is achieved.

Claims

A screen sharing method, the method comprising:

The first terminal acquires server authority;

The first terminal acquires an address of the at least one second terminal according to the server authority, and encapsulates the address and sends the address to the router;

The first terminal processes the screen content as a video stream and sends the content to the router.
The method of claim 1, wherein the obtaining, by the first terminal, the server rights comprises:

The first terminal sends a screen sharing request to the router;

The first terminal acquires the server authority issued by the router according to the screen sharing request.
The method of claim 2, wherein before the first terminal sends a screen sharing request to the router, the method further includes:

The first terminal sends a query request to the router, where the query request is used to query whether at least one second terminal having a screen sharing function accesses the router;

The first terminal receives a query reply sent by the at least one second terminal that is sent by the router and has a screen sharing function.
The method of claim 1, wherein before the first terminal processes the screen content as a video stream and sends the content to the router, the method further includes:

The first terminal and the at least one second terminal perform audio and video capabilities and control capability negotiation.
The method of claim 1, wherein after the first terminal processes the screen content as a video stream and sends the content to the router, the method further includes:

The first terminal sends an end screen sharing request to the router.
A screen sharing method, the method comprising:

The router sends the server authority to the first terminal;

The router receives the encapsulated address sent by the first terminal, parses the encapsulated address, and sends a screen sharing invitation to the at least one second terminal according to the parsed address;

The router receives the video stream sent by the first terminal, and sends the video stream to the at least one second terminal by means of a broadcast.
The method according to claim 6, wherein before the router issues the terminal server authority, the method further includes:

The router receives a screen sharing request sent by the first terminal.
The method according to claim 7, wherein before the router receives the screen sharing request sent by the terminal, the method further includes:

The router receives a query request sent by the first terminal;

The router queries, according to the query request, whether there is at least one second terminal access with a screen sharing function;

When the router determines that there is at least one second terminal access with a screen sharing function, a query reply is sent to the first terminal.
The method of claim 6, wherein the router, after receiving the video stream sent by the first terminal, and transmitting the video stream to the at least one second terminal, further includes:

The router receives an end screen sharing request sent by the first terminal or any of the second terminals, and stops sending and receiving of shared data.
A screen sharing method, the method comprising:

The second terminal receives a screen sharing invitation sent by the router;

And the second terminal receives the video stream that is sent by the router by using a broadcast manner, and processes the screen content shared by the first terminal.
The method of claim 10, wherein before the second terminal receives the video stream sent by the router, the method further includes:

The second terminal negotiates with the first terminal for audio and video capabilities and control capabilities.
The method of claim 10, wherein after the second terminal is processed to present the screen content shared by the first terminal, the method further includes:

The second terminal sends an end screen sharing request to the router.
A first terminal includes:

The first obtaining module is configured to acquire server authority, and obtain an address of the at least one second terminal according to the server authority;

a first processing module configured to encapsulate the address; process the screen content into a video stream;

The first sending module is configured to send the encapsulated address to the router, and send the video stream to the router.
The first terminal according to claim 13, wherein

The first sending module is further configured to send a screen sharing request to the router;

The first obtaining module is further configured to acquire the server authority issued by the router according to the screen sharing request.
The first terminal according to claim 14, wherein the first terminal further comprises a first receiving module,

The first sending module is further configured to send a query request to the router, where the query request is used to query whether at least one second terminal having a screen sharing function accesses the router;

The first receiving module is configured to receive a query reply sent by the at least one second terminal that is sent by the router and has a screen sharing function.
The first terminal according to claim 13, wherein

The first processing module is further configured to perform audio and video capabilities and control capability negotiation with the at least one second terminal.
The first terminal according to claim 13, wherein

The first sending module is further configured to send an end screen sharing request to the router.
A router that includes:

The second sending module is configured to send the server authority to the first terminal, send the screen sharing invitation to the at least one second terminal according to the parsed address, and send the video stream to the at least one Second terminal

The second receiving module is configured to receive the encapsulated address sent by the first terminal, and receive the video stream sent by the first terminal;

The second processing module is configured to parse the encapsulated address.
The router according to claim 18, wherein

The second receiving module is further configured to receive a screen sharing request sent by the first terminal.
The router according to claim 19, wherein

The second receiving module is further configured to receive a query request sent by the first terminal;

The second processing module is further configured to: according to the query request, query whether there is at least one second terminal access having a screen sharing function;

The second sending module is further configured to send a query reply to the first terminal when it is determined that there is access by at least one second terminal having a screen sharing function.
The router according to claim 18, wherein

The second receiving module is further configured to receive an end screen sharing request sent by the first terminal or any of the second terminals;

The second processing module is further configured to stop sending and receiving of shared data.
A second terminal includes:

a third receiving module, configured to receive a screen sharing invitation sent by the router; and receive a video stream that is sent by the router by using a broadcast manner;

The third processing module is configured to process the video stream and present screen content shared by the first terminal.
A second terminal according to claim 22, wherein

The third processing module is further configured to perform audio and video capabilities and control capability negotiation with the first terminal.
The second terminal according to claim 22, wherein the terminal further comprises:

The third sending module is configured to send an end screen sharing request to the router.
A screen sharing system comprising:

A first terminal according to claims 13 to 17, a router according to claims 18 to 21, and a second terminal according to claims 22 to 24.