CN105653219B - A kind of screen transmission control method, device, system and relevant device - Google Patents
A kind of screen transmission control method, device, system and relevant device Download PDFInfo
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- CN105653219B CN105653219B CN201410728347.8A CN201410728347A CN105653219B CN 105653219 B CN105653219 B CN 105653219B CN 201410728347 A CN201410728347 A CN 201410728347A CN 105653219 B CN105653219 B CN 105653219B
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Abstract
The invention discloses a kind of screen transmission control method, device, system and relevant devices, to realize multiple Source equipment to a Sink equipment transmission data.The screen transmission control method that receiving device is implemented, comprising: receive the screen that the first transmitting terminal Source equipment is sent and show request, the display parameter information of screen to be shown is carried in the screen display request；The first response message is returned to the first Source equipment, carries available first display window set in first response message, the first display window set is determined according to currently available display resource and the display parameter information.
Description
Technical field
The present invention relates to mobile terminal wirelessly with screen technical field more particularly to a kind of screen transmission control method, device,
System and relevant device.
Background technique
Mobile terminal is wirelessly Screen sharing technology emerging on mobile terminals with screen, will be moved by means of wireless network
Multimedia content in dynamic terminal, which is pushed on remote equipment, to be shown.WiFi Display (WFD, Wireless Display) WiFi connection
The technical solution that alliance releases, Miracast are the authentication items that WiFi alliance realizes product for WFD technology.Miracast equipment
It provides and simplifies discovery and setting technology, allow user rapidly in equipment room transmitting multimedia contents.The technology and authentication items
Mesh is formulated by the movement in Wi-Fi Alliance with consumer electronics device manufacturer and chip manufacturer jointly.Miracast user can
To browse the photo that smart phone takes by large screen television, pass through conference room projectors Real-Time Sharing notebook-type computer screen
Curtain, or watch on tablet computer the programme televised live of home videos set-top box.
The Floor layer Technology of WFD is WiFi Direct (wireless discovery), and Miracast passes through Wi-Fi CERTIFIED Wi-
Fi Direct forms connection, and there is no need to access any Wi-Fi network --- have connection function inside Miracast authenticating device
Can, WiFi P2P (point-to-point) agreement is followed to wirelessly connect with the mutual discovery of screen equipment with equipment.
It include two kinds of equipment: transmitting terminal (Source) equipment and receiving end (Sink) equipment in WFD agreement framework,
Source equipment is sent to Sink equipment after coding and is shown for obtaining the multi-medium datas such as audio-video, common
Source equipment has mobile phone, tablet computer, laptop etc., and Sink equipment is used to receive the audio-video of Source equipment transmission
It waits multi-medium datas and is played after being decoded, common Sink equipment has set-top box, TV and speaker etc..
The primary one-to-one connection conversation procedure of WFD standard includes following several stages: (1) Device Discovery
(equipment discovery) stage: Source/Sink equipment initiating equipment discovery movement finds there is WiFi Display under current environment
The equipment of function.(2) Service discovery (service discovery) stage: the relevant ability of discovering device WiFi Display.
(3) Device Select (equipment selection) stage:, the equipment that user selects a discovery initiates the connection.(4)Connection
Setup (connection is established) stage: it continues to use WiFi Direct connection mechanism and establishes MAC layer connection.(5)Capability
Negotiation (capability negotiation) stage: Source/Sink equipment is negotiated by RTSP message, ability parameter, including sound is arranged
Coded format, display resolution, port numbers of audio, video data transmission of video etc..(6) Session Setup (session establishment)
Stage: the parameter adjustment during safeguarding session connection and conversating.(7) Data Transfer (data transmission) stage:
Source equipment transmits the audio, video data after encoding to Sink equipment.(8) Tear Down (conversation end) stage, Source
Equipment or Sink equipment initiate conversation end operation.
But current Miracast technology only supports one-to-one data to transmit, i.e., a Source equipment is to one
Sink equipment transmission data, network topology structure schematic diagram are as shown in Figure 1.In practical application, such as visual telephone, wireless prison
Many-to-one data are needed to transmit in the application scenarios such as control, i.e., multiple Source equipment are existing to a Sink equipment transmission data
There is technology but to cannot achieve.
Summary of the invention
The embodiment of the present invention provides a kind of screen transmission control method, device, system and relevant device, multiple to realize
Source equipment is to a Sink equipment transmission data.
The embodiment of the present invention provides a kind of screen transmission control method that receiving device is implemented, comprising:
Receive the screen display request of the first transmitting terminal Source equipment transmission, carried in screen display request to
Show the display parameter information of screen；
The first response message is returned to the first Source equipment, is carried in first response message available
First display window set, the first display window set are according to currently available display resource and the display parameter information
It determines.
The method, further includes:
It receives the screen that the first Source equipment is sent and shows adjustment request, the screen shows in adjustment request and takes
With display parameter information adjusted；
The second response message is returned to the first Source equipment, is carried in second response message according to current
The the second window set that can be determined with display resource and display parameter information adjusted.
If being determined according to current display window occupied information, determination is worked as in accordance with the following methods when can not currently use display resource
Before can with display resource:
The first display window is sent to the 2nd Source equipment for occupying current display window and adjusts message, and described first is aobvious
Show in window adjustment message and carry available third display window set, can be mentioned according to the third display window set
What the display parameter information of whole display resources of confession and the first Source equipment and the 2nd Source equipment was determined；
The third response message that the 2nd Source equipment returns is received, is carried in the third response message described
2nd Source equipment is according to the display window information of the third display window Resource selection；
Display window information is selected to determine the currently available display resource according to the 2nd Source equipment.
When there is display resource to be released, further includes:
The second display window is sent to the 3rd Source equipment for occupying current display window and adjusts message, and described second is aobvious
Show and carry available 4th display window set in window adjustment message, the 4th display window set is according to display
The display parameter information of available display resource and the 3rd Source equipment is determined after resource release；
The 4th response message that the 3rd Source equipment returns is received, is carried in the 4th response message described
3rd Source equipment is according to the display window information of the 4th display window Resource selection.
The method, further includes:
The display window confirmation message that the first Source equipment is sent is received, is taken in the display window confirmation message
Window ID with the display window that the first Source equipment is selected from the first display window set.
The embodiment of the present invention provides a kind of screen transmission control device applied to receiving end, comprising:
Receiving unit, for receiving the screen display request of the first transmitting terminal Source equipment transmission, the screen is shown
The display parameter information of screen to be shown is carried in request；
Transmission unit, for returning to the first response message to the first Source equipment, in first response message
Available first display window set is carried, the first display window set is according to currently available display resource and institute
State what display parameter information was determined.
The receiving unit is also used to receive the screen that the first Source equipment is sent and shows adjustment request, described
Screen display adjustment carries display parameter information adjusted in asking；
The transmission unit is also used to return to the second response message, second response to the first Source equipment
The the second window set determined according to currently available display resource and display parameter information adjusted is carried in message.
It further include determination unit, in which:
The transmission unit, if display resource can not currently be used by being also used to be determined according to current display window occupied information
When, the first display window, which is sent, to the 2nd Source equipment for occupying current display window adjusts message, first display window
Available third display window set is carried in mouth adjustment message, the third display window set is according to available
All the display parameter information of display resource and the first Source equipment and the 2nd Source equipment is determined；
The receiving unit is also used to receive the third response message that the 2nd Source equipment returns, the third
The 2nd Source equipment is carried in response message according to the display window information of the third display window Resource selection；
Determination unit, it is described currently available aobvious for selecting display window information to determine according to the 2nd Source equipment
Show resource.
The transmission unit is also used to when there is display resource to be released, to the third for occupying current display window
Source equipment sends the second display window and adjusts message, and available the is carried in second display window adjustment message
Four display window set, the 4th display window set are according to available display resource and described after display resource release
What the display parameter information of the 3rd Source equipment was determined；
The receiving unit, is also used to receive the 4th response message that the 3rd Source equipment returns, and the described 4th
The 3rd Source equipment is carried in response message according to the display window information of the 4th display window Resource selection.
The receiving unit is also used to receive the display window confirmation message that the first Source equipment is sent, described
The display that the first Source equipment is selected from the first display window set is carried in display window confirmation message
The window ID of window.
The embodiment of the present invention provides a kind of receiving device, controls dress including the above-mentioned screen transmission applied to receiving end
It sets.
The embodiment of the present invention provides a kind of screen transmission control method that sending ending equipment is implemented, comprising:
Screen display request is sent to receiving end Sink equipment, carries screen to be shown in the screen display request
Display parameter information；
The first response message that the Sink equipment returns is received, the Sink is carried in first response message and sets
Standby available first display window set.
The method, further includes:
Send screen to the Sink equipment and show adjustment request, screen display adjustment ask in carry it is adjusted
Display parameter information；
The second response message that the Sink equipment returns is received, the Sink is carried in second response message and sets
Standby available second window set.
The method, further includes:
The display window adjustment message that the Sink equipment is sent is received, is carried in the display window adjustment message
State the available third display window set of Sink；
Third response message is returned to the Sink equipment, is carried in the third response message aobvious according to the third
Show the display window information of window Resource selection.
The method, comprising:
Display window confirmation message is sent to the Sink equipment, is carried in the display window confirmation message from first
The window ID of the display window selected in display window set.
The embodiment of the present invention provides a kind of screen transmission control device applied to sending ending equipment, comprising:
Transmission unit carries in the screen display request for sending screen display request to receiving end Sink equipment
Need to be shown the display parameter information of screen；
Receiving unit is used to receive the first response message that the Sink equipment returns, and carries in first response message
There is the available first display window set of the Sink equipment.
The transmission unit is also used to send screen to the Sink equipment and shows adjustment request, and the screen display is adjusted
It is whole ask in carry display parameter information adjusted；
The receiving unit, is also used to receive the second response message that the Sink equipment returns, and second response disappears
The available second window set of the Sink equipment is carried in breath.
The receiving unit is also used to receive the display window adjustment message that the Sink equipment is sent, the display window
The available third display window set of the Sink is carried in mouth adjustment message；
The transmission unit is also used to return to third response message to the Sink equipment, in the third response message
Carry the display window information according to the third display window Resource selection.
The transmission unit is also used to send display window confirmation message to the Sink equipment, and the display window is true
Recognize in message and carries the window ID of the display window selected from the first display window set.
The embodiment of the present invention provides a kind of sending ending equipment, controls including the above-mentioned screen transmission applied to sending ending equipment
Device.
The embodiment of the present invention provides a kind of screen transmission control system, including receiving device and at least one transmitting terminal are set
Standby, wherein the receiving device includes the above-mentioned screen transmission control device applied to receiving device, the transmitting terminal is set
Standby includes the above-mentioned screen transmission control device applied to sending ending equipment.
Screen transmission control method, device, system and relevant device provided in an embodiment of the present invention, receiving device according to
The display parameter information in screen display request that sending ending equipment is sent can be mentioned with itself currently available display resource determination
The display window set of confession, so that sending ending equipment selects a display window from the display window set that receiving device provides
Mouth carries out screen transmission, in this way, each sending ending equipment can choose by the above process when there are multiple sending ending equipments
The display window of itself screen is shown out, to meet need of more sending ending equipments to same receiving device transmission screen
It asks, realizes and transmit data between more sending ending equipments and a receiving device.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the network topology structure signal for transmitting data between a transmitting terminal and a receiving end in the prior art
Figure；
Fig. 2 is the structural schematic diagram of screen transmission control system in the embodiment of the present invention；
Fig. 3 is the interaction flow schematic diagram between Source equipment and Sink equipment in the embodiment of the present invention；
Fig. 4 a is the schematic diagram of the transmission screen in the embodiment of the present invention, between Source equipment A and Sink equipment；
Fig. 4 b is the first display window that Sink equipment can be provided to Source equipment A in the embodiment of the present invention；
Fig. 4 c is second of display window that Sink equipment can be provided to Source equipment A in the embodiment of the present invention；
Fig. 5 is schematic diagram of the Source equipment A to Sink equipment transmission screen backstage in the embodiment of the present invention；
Fig. 6 a is that the schematic diagram of screen is transmitted between Source equipment B and Sink equipment in the embodiment of the present invention；
Fig. 6 b is in the embodiment of the present invention, and Sink equipment is to the available display window assembly diagram of Source equipment B；
Fig. 7 is schematic diagram of the Source equipment B to Sink equipment transmission screen backstage in the embodiment of the present invention；
Fig. 8 is the display window set adjusted that Sink equipment can be provided to Source equipment A in the embodiment of the present invention
Schematic diagram；
Fig. 9 is the display schematic diagram in the embodiment of the present invention, after the screen diminution of Source equipment A transmission；
Figure 10 is in the embodiment of the present invention, and Sink equipment can be to Source equipment B after Source equipment B adjusts display parameters
The schematic diagram of the display window set of offer；
Figure 11 is in the embodiment of the present invention, and after Source equipment B adjusts display parameters, Source equipment A and Source are set
Schematic diagram of the standby B to Sink equipment transmission screen；
Figure 12 is the display window assembly diagram that Sink equipment can be provided to Source equipment C in the embodiment of the present invention；
Figure 13 is in the embodiment of the present invention, and Source equipment C starts, Sink device screen behind the scenes to Sink equipment transmission screen
Display schematic diagram；
Figure 14 is to exit after screen transmission for Source equipment A, Sink device screen, which is shown, to be shown in the embodiment of the present invention
It is intended to；
Figure 15 is to exit after screen transmission for Source equipment A and Source equipment C, Sink in the embodiment of the present invention
Equipment can be to the display window schematic diagram of the Source equipment B increase resolution provided；
Figure 16 is to exit after screen transmission for Source equipment A and Source equipment C, Sink in the embodiment of the present invention
Device display screen curtain schematic diagram；
Figure 17 is in the embodiment of the present invention, and Sink equipment implements the implementation process diagram of screen transmission control method；
Figure 18 is the structural schematic diagram of the screen transmission control device applied to Sink equipment side in the embodiment of the present invention；
Figure 19 is in the embodiment of the present invention, and Source equipment implements the implementation process diagram of screen transmission control method；
Figure 20 is the structural representation of the screen transmission control device applied to Source equipment side in the embodiment of the present invention
Figure.
Specific embodiment
In order to realize the screen transmission between multiple Source equipment and a Sink equipment, present invention implementation provides one kind
Screen transmission control method, device, system and relevant device.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein
Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair
The feature in embodiment and embodiment in bright can be combined with each other.
Embodiment one
As shown in Fig. 2, for the structural schematic diagram of screen transmission control system provided in an embodiment of the present invention, including at least one
A sending ending equipment 21 and a receiving device 22.
It should be noted that in network topology structure shown in Fig. 1, due to only including a Sink equipment and one
Therefore Source equipment has no and clearly advises as GO (Group Ower, group leader) for Sink equipment or Source equipment
It is fixed.In the embodiment of the present invention, in order to support the screen transmission between multiple Source equipment and a Sink equipment, specify by
Sink equipment as GO, no matter the quantity of Source equipment how many, Client (client) can only be used as.As long as in this way,
Sink equipment there remains enough display resources, and Source equipment can show the screen transmission of itself to Sink equipment
Show.
Both WiFi P2P connection can be used in the embodiment of the present invention, between Sink equipment and Source equipment, it can also be with
It uses TDLS (Tunneled Direct Link Setup, channel direct link are established).
Initial time, Sink equipment are in idle condition and wait service to be supplied, do not establish with any Source equipment
Connection transmission screen.Assuming that Source equipment A screen transmission to be initiated at this time, then follow the original process of Miracast1.0 successively
Carry out WFD equipment discovery phase, WFD service discovery stage, equipment choice phase and connection establishment stage.
In WFD capability negotiation stage, A sends RTSP (Real Time Streaming to Sink equipment first
Protocol, real-time streaming protocol) the RTSP method supported of M1 message inquiry Sink, Sink replys M1 response.Then Sink is set
Standby that the RTSP method that M2 message inquiry Source is supported is sent to A, Source replys M2 response.Later, A is sent out to Sink equipment
M3 message (RTSP GET_PARAMETER) is sent to obtain the display parameter information of Sink equipment.In the embodiment of the present invention, in order to
It supports multiple Source equipment to transmit screen to a Sink equipment, modifies to M3 message, increase by one in M3 message
Optional parameters can support the window set of itself display resolution to show that Source equipment wishes that Sink equipment returns,
In, which may include the resolution width and resolution height of Source equipment, and the parameter definition is as follows:
Wfd_supported_window_mode Source device resolution width * Source device resolution height.
As shown in figure 3, Source equipment and Sink equipment are handed in the message of capability negotiation stage in the embodiment of the present invention
Mutual flow diagram may comprise steps of and (complete M1 and M2 interacting message below with Source equipment and Sink equipment
It is illustrated for process later):
S31, Source equipment A send screen display request to Sink equipment.
Specifically, Source equipment A carries the display parameter information of Source equipment in the screen display request of transmission.
It is Source equipment A as shown in fig. 4 a so that Source equipment A sends screen display request to Sink equipment as an example
The schematic diagram of transmission screen between Sink equipment, Source equipment A sends M3 message to Sink equipment, wherein carrying
The display resolution parameter of Source equipment A, by taking display resolution is 960*540 as an example, M3 message that A is sent to Sink equipment
It is as shown in table 1:
Table 1
S32, Sink equipment return to response message to Source equipment A.
If Sink equipment finds wfd_supported_window_mode parameter in M3 message, need to disappear in M3 response
The parameter is carried in breath and currently meets all possible window set of Source equipment A display resolution parameter, wherein
Window attribute (window number, starting point abscissa, starting point ordinate, resolution width, resolution height) comprising each window etc..
When it is implemented, Sink equipment is true according to the display parameter information that itself currently available display resource and Source equipment are sent
Fixed available display window set.
Assuming that the display resolution of Sink equipment is 1920*1080, and current Sink equipment is in idle condition, then basis
The display resolution parameter (960*540) of Source equipment A, the available display window of Sink equipment include: 1920*1080 with
And two kinds of 960*540, respectively as shown in figures 4 b and 4 c, the available display window set of Sink equipment includes a 1920*
The window attribute of the display window of 1080 display window and four 960*540, each window is as follows: (0 0,0 1920*1080),
(1 0,0 960*540), (2 960,0 960*540), (3 0,540 960*540) (4 960,540 960*540).Then Sink
The response message that equipment returns to M3 message to Source equipment is as shown in table 2:
Table 2
S33, Source equipment A send display window confirmation message to Sink equipment.
In upper example, Source equipment A is after the response message for receiving M3 message, according to the display of Sink equipment offer
One display window of window Resource selection, it is assumed that A select window number for 0 display window.Then A sends M 4 to Sink equipment
Message increases an optional parameters to show the selected window number of A equipment in M4 message, and the parameter definition is as follows:
The selected window number of wfd_supported_window_mode Source.
The M4 message that then A is sent to Sink equipment is as shown in table 3:
Table 3
S34, Sink equipment return to the response message of display window confirmation message to Source equipment A.
Sink equipment is after the display window confirmation message for receiving Source equipment A transmission, according to what is wherein carried
Window number determines the display window of Source equipment A selection, and returns to response message to Source equipment A, shows Source
The display window can be used in equipment A.The response message for the M4 message that Sink equipment returns is as shown in table 4:
Table 4
Later, Source equipment A and Sink equipment completes M5~M7 stage and subsequent session connection stage, and opens
Begin transmission screen, as shown in figure 5, being schematic diagram of the Source equipment A to Sink equipment transmission screen backstage.
Embodiment two
During Source equipment A transmits screen to Sink equipment, Source equipment B also wishes to set to same Sink
Standby transmission screen.Equally, the discovery of WFD equipment, the choosing of WFD service discovery, equipment are completed between Source equipment B and Sink equipment
After selecting, connecting foundation and M1 and the M2 interaction of capability negotiation stage, B sends screen to Sink equipment and shows request message, i.e.,
M3 message transmits the schematic diagram of screen as shown in Figure 6 a between Source equipment B and Sink equipment.
As shown in figure 3, the interaction flow between Source equipment B and Sink equipment may comprise steps of:
S35, Source equipment B send screen to Sink equipment and show request message.
Specifically, B is shown in request message message in the screen sent to Sink equipment carries display parameter information, it is false
It is set as 960*1080.The M3 message that then Source equipment B is sent to Sink equipment is as shown in table 5:
Table 5
S36, Sink equipment return to the response message that screen shows request message to Source equipment B.
Specifically, Sink equipment is true according to the display parameter information of itself currently available display resource and Source equipment B
The fixed display window set that itself can be provided to Source equipment B.
For example, it is assumed that in upper example, if Source equipment A select window number for 1 display window, Sink equipment
According to the display resolution parameter (720*1080) of the available display resource of itself and Source equipment B, determination can be to Source
The display window that equipment B is provided includes: 720*1080 one kind, since Source equipment A occupies display window 1, as shown in Figure 6 b,
It is Sink equipment to the available display window set of Source equipment B, the available display window set of Sink equipment includes
The display window of one 960*1080, window attribute are as follows: (0 1200,0 720*1080).Then Sink equipment is set to Source
The standby response message for returning to M3 message is as shown in table 6:
Table 6
S37, Source equipment B send display window confirmation message to Sink equipment.
Source equipment B is after the response message for receiving M3 message, according to the display window collection of Sink equipment offer
Close selection one display window, it is assumed that B select window number for 0 display window.Then B sends 4 message of M to Sink equipment,
In carry the selected window number of BA equipment, the M4 message that B is sent to Sink equipment is as shown in table 7:
Table 7
S38, Sink equipment return to the response message of display window confirmation message to Source equipment B.
Sink equipment is after the display window confirmation message for receiving Source equipment B transmission, according to what is wherein carried
Window number determines the display window of Source equipment B selection, and returns to response message to Source equipment B, shows Source
The display window can be used in equipment B.The response message for the M4 message that Sink equipment returns is as shown in table 8:
Table 8
Later, Source equipment B and Sink equipment completes M5~M7 stage and subsequent session connection stage, and opens
Begin transmission screen, as shown in fig. 7, being schematic diagram of the Source equipment B to Sink equipment transmission screen backstage.
Embodiment three
When it is implemented, i.e. Source equipment A is accounted for if Source equipment A has selected window number for 0 display window
With the entire screen of Sink equipment, at this point, if when Source equipment B sends screen display request to Sink equipment, due to current
Whole display resources of Sink equipment are occupied by Source equipment A, and therefore, Sink equipment can not currently use display resource.It is this
In the case of, Sink equipment can adjust message by sending display window to Source equipment A, and notice Source equipment A needs
It reduces display window and therefore reduces display resolution.In order to send display window adjustment message, need to define new message
Type M17 changes for Sink equipment notice Source equipment current network environment, it is proposed that the adjustment display of Source equipment
Window.Available display window set is carried in M17, is defined as follows:
Wfd_supported_window_mode suggest display window set (each window attribute include window number,
Starting point abscissa, starting point ordinate, resolution width, resolution height etc.).
As shown in figure 3, the process of interaction may include following between Source equipment A, Source equipment B and Sink equipment
Step:
S39, Source equipment B send screen display request to Sink equipment.
Wherein carry the display parameter information (720*1080) of Source equipment B.
S310, Sink equipment send display window to Source equipment A and adjust message.
Sink equipment is after receiving the screen display request of Source transmission, if itself is current without can be provided with display
Source then sends display window to Source equipment A and adjusts message.When it is implemented, being carried in display window adjustment message
The available display window set of Sink equipment.Specifically, Sink equipment shows resources according to itself available whole, and
The display parameter information (960*540) of Source equipment A and the display parameter information (720*1080) of Source equipment B determine
The display window for being provided to A includes 960*540 one kind, but be can choose there are four position.
As shown in figure 8, the available display window set of Sink equipment includes the display window of four 960*540, each window
The window attribute of mouth is as follows: (0 0,0 960*540), (1 960,0 960*540), (2 0,540 960*540) (3 960,
540 960*540).Display window adjustment message, that is, M17 message that then Sink equipment is sent to Source equipment is as shown in table 9:
Table 9
S311, Source equipment A return to response message to Sink equipment.
The display window number of its selection is carried in the response message that Source equipment A is returned, it is assumed that Source is set
The window number for the display window that standby A is selected is 0.
When it is implemented, after Source equipment A receives M17 message, send M17 response message, if receive Sink equipment to
Suggestion out, the state value of M17 response are 200, and selected window is added in wfd_supported_window_mode parameter
Mouth number；If refusal, the state value of M17 response is 406.Assuming that Source equipment A sends M17 response message as indicated by 10:
Table 10
The screen transmitted by step S39 and step S310, Source equipment A will narrow down to display of the window number for 0
It is shown in window, as shown in Figure 9.
S312, Sink equipment return to the response message of screen display request to Source equipment B.
It wherein carries comprising wfd_supported_window_mode parameter, being used for currently can be to Source equipment B
Display window set is provided.For example Sink equipment can provide display window shown in Fig. 6 b at this time.
S313, Source equipment B send display window confirmation message to Sink equipment.
Wherein, the display window number of Source equipment B selection is carried.
S314, Sink equipment return to the response message of display window confirmation message to Source equipment B.
It should be noted that if the state value carried in the response message that Source equipment A is returned in step S311
Be 406, i.e. Source equipment A refusal adjustment display window, then in step S312 Sink equipment refusal Source equipment B screen
Curtain display request.
Source equipment A and Source equipment B is behind the scenes to Sink equipment transmission screen, display screen such as Fig. 7 of Sink equipment
It is shown.
Example IV
During Source equipment and Sink equipment transmission screen, Source equipment can also change the screen of itself
State.For Source equipment B in the above example, if screen rotation occurs for Source equipment B, i.e., it shows screen by vertical screen
State becomes transverse screen state.As shown in figure 3, the interaction flow between Source equipment B and Sink equipment may include following step
It is rapid:
S315, Source equipment B send screen to Sink equipment and show adjustment request.
Wherein, display parameter information adjusted is carried.When it is implemented, screen shows that adjustment request can pass through M3
Message is sent, i.e., carries display parameters adjusted by wfd_supported_window_mode parameter therein.Assuming that
Source equipment B display parameter information adjusted is 960*540.
S316, Sink equipment return to response message to Source equipment B.
In response message, the available display window set of Sink equipment is carried.When it is implemented, Sink equipment root
Determine that itself can be mentioned according to itself currently available display resource and Source equipment B display parameter information adjusted (960*540)
The display window set of confession.Currently, Source equipment A occupies a display window, therefore, the available display window of Sink equipment
Mouth set is as follows: (0 960,0 960*540), (1 0,540 960*540), (2 960,540 960*540), such as Figure 10 institute
Show.
S317, Source equipment B send display window confirmation message to Sink equipment.
Wherein carry the window number of the display window of Source equipment B selection, it is assumed that Source equipment B selection display
Window 1.
S318, Sink equipment return to the response message of display window confirmation message to Source equipment B.
So far, Source equipment A and Source equipment B continues and transmits screen between Sink equipment, and Sink equipment is shown
Display screen curtain is as shown in figure 11.
Embodiment five,
If during Source equipment A and Source equipment B transmitted screen to Sink equipment, Source equipment C
Screen display request is sent to Sink equipment by M3 message.Then the interaction flow between Source equipment C and Sink equipment is such as
Shown in Fig. 3, it may comprise steps of:
S319, Source equipment C send screen display request to Sink equipment.
Wherein carry the display parameter information of Source equipment C, it is assumed that be 720*1080.
S320, Sink equipment return to response message to Source equipment C.
The available display window set of Sink equipment is carried in response message.Due to Source equipment A and
Source equipment B occupies display window shown in Figure 11 respectively, then Sink equipment can determine itself available display window set
It is as follows: (01200,0720*1080), as shown in figure 12.
It should be noted that if Sink is set when Source equipment B currently occupies the display window in the Sink equipment upper right corner
It is standby to be adjusted by sending display window adjustment message informing Source equipment to Source equipment B to the display window in the lower left corner
Mouth is shown.Its implementation process is referred to step S310 to step S311 execution, and which is not described herein again.
S321, Source equipment C send display window confirmation message to Sink equipment.
Wherein, the window number of the display window of its selection is carried in Source equipment C display window confirmation message.
S322, Sink equipment return to response message to Source equipment C.
After the interaction for completing M5~M7 stage and session connection stage after Source equipment C with Sink equipment, with
Screen transmission is carried out between Sink equipment, Sink device screen display schematic diagram is as shown in figure 13.
So far, the display resource of Sink equipment is all occupied, shields if there is Source equipment to send to Sink equipment again
When curtain display request, Sink equipment will refuse the request.
Embodiment six
During Source equipment A, Souur side apparatus B and Source equipment C transmits screen to Sink equipment, such as
Fruit has Source equipment to exit screen transmission, then Sink equipment can also notify currently still according to currently available display resource
In the display window set for the available higher resolution of Source equipment itself for carrying out screen transmission.
As shown in figure 14, it is exited after screen transmission for Source equipment A, Sink device screen display schematic diagram, later
Source equipment C exits screen transmission again.For Sink equipment according to currently available display resource, determination can be Source equipment
The display window that B provides higher resolution it can then be mentioned as shown in figure 15 by M17 message informing Source equipment B
Resolution ratio is risen to enter display state all over the screen, Sink device screen schematic diagram is as shown in figure 16.As shown in figure 3, Sink equipment with
Interaction flow between Source equipment may comprise steps of:
S323, Sink equipment send display window to Source equipment B and adjust message.
Specifically, Sink equipment, which can send display window to Source equipment B by M17 message, adjusts message, wherein
Carry itself current available display window set.For example, can be (0 0,0 1920*1080), (1 0,0 960*
540), (2 960,0 960*540), (3 0,540 960*540), (4 960,540 960*540).
S324, Source equipment B return to response message to Sink equipment.
Wherein carry the window number of the display window of Source equipment B selection.
Later, if Source equipment B also exits screen transmission, Sink equipment returns idle state, waits clothes to be supplied
Business.
In above-mentioned screen transmission control method, receiving device is shown in request according to the screen that sending ending equipment is sent
Display parameter information and itself currently available display resource determine available display window set so that sending ending equipment from
One display window of selection carries out screen transmission in the display window set that receiving device provides, in this way, when there are multiple hairs
When sending end equipment, each sending ending equipment can choose out the display window for showing itself screen by the above process, thus full
The more sending ending equipments of foot are realized to the demands of same receiving device transmission screen in more sending ending equipments and a reception
Data are transmitted between end equipment.
Based on the same inventive concept, a kind of receiving device and sending ending equipment are also each provided in the embodiment of the present invention
Screen transmission control method, device and the receiving device and sending ending equipment of implementation, due to the above method, device and equipment
The principle solved the problems, such as is similar to screen transmission control system, therefore the implementation side of may refer to of the above method, apparatus and system
The implementation of method, overlaps will not be repeated.
Embodiment seven
As shown in figure 17, implement the implementation process diagram of screen transmission control method, including following step for Sink equipment
It is rapid:
S171, the screen display request that the first transmitting terminal Source equipment is sent is received.
The display parameter information of screen to be shown is carried in the screen display request；
S172, the first response message is returned to the first Source equipment.
Available first display window set, the first display window set are carried in first response message
It is determined according to currently available display resource and the display parameter information.
Sink equipment implement screen transmission control method, can with the following steps are included:
Step 1: receiving the screen that the first Source equipment is sent shows adjustment request, the screen display adjustment
Please in carry display parameter information adjusted；
Step 2: returning to the second response message to the first Source equipment, carried in second response message
The the second window set determined according to currently available display resource and display parameter information adjusted.
When it is implemented, if according to current display window occupied information determine currently can not with show resource when, according to
Lower method determines currently available display resource:
Step 1: sending the first display window to the 2nd Source equipment for occupying current display window adjusts message, institute
It states in the first display window adjustment message and carries available third display window set, the third display window collection is combined into
According to available all display parameter informations of display resource and the first the Source equipment and the 2nd Source equipment
It determines；
Step 2: receiving the third response message that the 2nd Source equipment returns, taken in the third response message
With the 2nd Source equipment according to the display window information of the third display window Resource selection；
Step 3: selecting display window information to determine that the currently available display provides according to the 2nd Source equipment
Source.
Preferably, when there is display resource to be released, the screen transmission control method that Sink equipment is implemented can also include
Following steps:
The second display window is sent to the 3rd Source equipment for occupying current display window and adjusts message, and described second is aobvious
Show and carry available 4th display window set in window adjustment message, the 4th display window set is according to display
The display parameter information of available display resource and the 3rd Source equipment is determined after resource release；
The 4th response message that the 3rd Source equipment returns is received, is carried in the 4th response message described
3rd Source equipment is according to the display window information of the 4th display window Resource selection.
When it is implemented, the screen transmission control method that Sink equipment is implemented, can also include: to receive described first
The display window confirmation message that Source equipment is sent carries the first Source in the display window confirmation message and sets
The window ID of the standby display window selected from the first display window set.
Embodiment eight
As shown in figure 18, it is the structural schematic diagram of the screen transmission control device applied to Sink equipment end, may include:
Receiving unit 181, for receiving the screen display request of the first transmitting terminal Source equipment transmission, the screen is aobvious
Show the display parameter information that screen to be shown is carried in request；
Transmission unit 182, for returning to the first response message, first response message to the first Source equipment
In carry available first display window set, the first display window set be according to currently available display resource with
What the display parameter information was determined.
When it is implemented, receiving unit 181, is also used to receive the screen display adjustment that the first Source equipment is sent
Request, the screen show that adjustment carries display parameter information adjusted in asking；
Transmission unit 182 is also used to return to the second response message to the first Source equipment, and second response disappears
The the second window set determined according to currently available display resource and display parameter information adjusted is carried in breath.
It can also include determination unit when it is implemented, being applied to the screen transmission control device of Sink equipment end,
In:
Transmission unit 182, if be also used to currently use display resource according to the determination of current display window occupied information,
The first display window, which is sent, to the 2nd Source equipment for occupying current display window adjusts message, the first display window tune
Available third display window set is carried in whole message, the third display window set is according to available whole
What the display parameter information of display resource and the first Source equipment and the 2nd Source equipment was determined；
Receiving unit 181, is also used to receive the third response message that the 2nd Source equipment returns, and the third is answered
It answers and carries the 2nd Source equipment in message according to the display window information of the third display window Resource selection；
Determination unit, it is described currently available aobvious for selecting display window information to determine according to the 2nd Source equipment
Show resource.
When it is implemented, transmission unit 182, is also used to when there is display resource to be released, to the current display window of occupancy
The 3rd Source equipment send the second display window and adjust message, carries and can mention in second display window adjustment message
The 4th display window set supplied, the 4th display window set are according to available display resource after display resource release
It is determined with the display parameter information of the 3rd Source equipment；
Receiving unit 181 is also used to receive the 4th response message that the 3rd Source equipment returns, and the described 4th answers
It answers and carries the 3rd Source equipment in message according to the display window information of the 4th display window Resource selection.
When it is implemented, receiving unit 181, is also used to receive the display window confirmation that the first Source equipment is sent
Message carries the first Source equipment in the display window confirmation message and selects from the first display window set
The window ID for the display window selected.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist
Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.For example, tool
When body is implemented, the screen transmission device that embodiment eight provides be can be set in Sink equipment.
Embodiment nine,
As shown in figure 19, it is the implementation process diagram of Source equipment implementation screen transmission control method, may include
Following steps:
S191, screen display request is sent to receiving end Sink equipment.
The display parameter information of screen to be shown is carried in the screen display request；
S192, the first response message that the Sink equipment returns is received.
The available first display window set of the Sink equipment is carried in first response message.
When it is implemented, Source equipment implement screen transmission method, can with the following steps are included:
Step 1: sending screen to the Sink equipment shows adjustment request, the screen shows that adjustment carries in asking
Display parameter information adjusted；
Step 2: receiving the second response message that the Sink equipment returns, carried in second response message
State the available second window set of Sink equipment.
When it is implemented, Source equipment implement screen transmission method, can with the following steps are included:
Step 1: the display window adjustment message that the Sink equipment is sent is received, in the display window adjustment message
Carry the available third display window set of the Sink；
Step 2: returning to third response message to the Sink equipment, carry in the third response message according to institute
State the display window information of third display window Resource selection.
When it is implemented, Source equipment implement screen transmission method, can with the following steps are included:
Display window confirmation message is sent to the Sink equipment, is carried in the display window confirmation message from first
The window ID of the display window selected in display window set.
Embodiment ten
As shown in figure 20, it is the structural schematic diagram of the screen transmission control device applied to Source equipment end, can wrap
It includes:
Transmission unit 2001, for sending screen display request to receiving end Sink equipment, the screen is shown in request
Carry the display parameter information of screen to be shown；
Receiving unit, 2002 the first response messages returned for receiving the Sink equipment, first response message
In carry the available first display window set of the Sink equipment.
When it is implemented, transmission unit 2001, is also used to send screen display adjustment request to the Sink equipment, it is described
Screen display adjustment carries display parameter information adjusted in asking；The receiving unit 2002 is also used to receive described
The second response message that Sink equipment returns carries available second window of the Sink equipment in second response message
Mouth set.
When it is implemented, receiving unit 2002, is also used to receive the display window adjustment message that the Sink equipment is sent,
The available third display window set of the Sink is carried in the display window adjustment message；Transmission unit 2001, also
For returning to third response message to the Sink equipment, carry in the third response message according to the third display window
The display window information of mouth Resource selection.
When it is implemented, transmission unit 2001, is also used to send display window confirmation message to the Sink equipment, it is described
The window ID of the display window selected from the first display window set is carried in display window confirmation message.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist
Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.For example, tool
When body is implemented, the screen transmission device that embodiment ten provides be can be set in Source equipment.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (17)
1. a kind of screen transmission control method characterized by comprising
The screen display request of the first transmitting terminal Source equipment transmission is received, is carried in the screen display request to be shown
The display parameter information of screen；
The first response message is returned to the first Source equipment, carries available first in first response message
Display window set, the first display window set are to be determined according to currently available display resource and the display parameter information
Out；
It receives the screen that the first Source equipment is sent and shows adjustment request, the screen shows in adjustment request and carries
Display parameter information adjusted；
The second response message is returned to the first Source equipment, is carried in second response message according to currently available
The second display window set that display resource and display parameter information adjusted are determined.
2. the method as described in claim 1, which is characterized in that currently can not if being determined according to current display window occupied information
When with display resource, currently available display resource is determined in accordance with the following methods:
The first display window, which is sent, to the 2nd Source equipment for occupying current display window adjusts message, first display window
Available third display window set is carried in mouth adjustment message, the third display window set is according to available
All the display parameter information of display resource and the first Source equipment and the 2nd Source equipment is determined；
The third response message that the 2nd Source equipment returns is received, carries described second in the third response message
Source equipment is according to the display window information of the third display window Resource selection；
Display window information is selected to determine the currently available display resource according to the 2nd Source equipment.
3. the method as described in claim 1, which is characterized in that when there is display resource to be released, further includes:
The second display window, which is sent, to the 3rd Source equipment for occupying current display window adjusts message, second display window
Available 4th display window set is carried in mouth adjustment message, the 4th display window set is according to display resource
The display parameter information of available display resource and the 3rd Source equipment is determined after release；
The 4th response message that the 3rd Source equipment returns is received, carries the third in the 4th response message
Source equipment is according to the display window information of the 4th display window Resource selection.
4. the method as described in claim 1, which is characterized in that further include:
The display window confirmation message that the first Source equipment is sent is received, is carried in the display window confirmation message
The window ID for the display window that the first Source equipment is selected from the first display window set.
5. a kind of screen transmission control device characterized by comprising
Receiving unit, for receiving the screen display request of the first transmitting terminal Source equipment transmission, the screen display request
In carry the display parameter information of screen to be shown；And it receives the screen that the first Source equipment is sent and shows adjustment
Request, the screen, which is shown in adjustment request, carries display parameter information adjusted；
Transmission unit carries in first response message for returning to the first response message to the first Source equipment
There is an available first display window set, the first display window set is according to currently available display resource and described to show
Show what parameter information was determined；And the second response message, second response message are returned to the first Source equipment
In carry according to currently available display resource and the second display window set for determining of display parameter information adjusted.
6. device as claimed in claim 5, which is characterized in that further include determination unit, in which:
The transmission unit, if be also used to currently use display resource according to the determination of current display window occupied information, to
The 2nd Source equipment for occupying current display window sends the first display window adjustment message, the first display window adjustment
Available third display window set is carried in message, the third display window set is aobvious according to available whole
Show what the display parameter information of resource and the first Source equipment and the 2nd Source equipment was determined；
The receiving unit is also used to receive the third response message that the 2nd Source equipment returns, the third response
The 2nd Source equipment is carried in message according to the display window information of the third display window Resource selection；
Determination unit, for selecting display window information to determine that the currently available display provides according to the 2nd Source equipment
Source.
7. device as claimed in claim 5, which is characterized in that
The transmission unit is also used to set when there is display resource to be released to the 3rd Source for occupying current display window
Preparation send the second display window to adjust message, carries available 4th display window in the second display window adjustment message
Mouth set, the 4th display window set are according to available display resource and the third after display resource release
What the display parameter information of Source equipment was determined；
The receiving unit is also used to receive the 4th response message that the 3rd Source equipment returns, the 4th response
The 3rd Source equipment is carried in message according to the display window information of the 4th display window Resource selection.
8. device as claimed in claim 5, which is characterized in that
The receiving unit is also used to receive the display window confirmation message that the first Source equipment is sent, the display
The display window that the first Source equipment is selected from the first display window set is carried in window confirmation message
Window ID.
9. a kind of receiving device, which is characterized in that including screen transmission control described in claim 5~8 any claim
Device processed.
10. a kind of screen transmission control method characterized by comprising
Screen display request is sent to receiving end Sink equipment, the display of screen to be shown is carried in the screen display request
Parameter information；
The first response message that the Sink equipment returns is received, carrying the Sink equipment in first response message can
The the first display window set provided, the first display window set are to be joined according to currently available display resource and the display
Number information is determined；
Screen is sent to the Sink equipment and shows adjustment request, and the screen, which is shown, carries adjusted show in adjustment request
Show parameter information；
The second response message that the Sink equipment returns is received, carrying the Sink equipment in second response message can
There is provided the second display window set, the second display window set be according to currently available display resource and it is adjusted show
Show what parameter information was determined.
11. method as claimed in claim 10, which is characterized in that further include:
The display window adjustment message that the Sink equipment is sent is received, is carried in the display window adjustment message described
The available third display window set of Sink；
Third response message is returned to the Sink equipment, is carried in the third response message according to the third display window
The display window information of mouth Resource selection.
12. method as claimed in claim 10, which is characterized in that further include:
Display window confirmation message is sent to the Sink equipment, is carried in the display window confirmation message from the first display
The window ID of the display window selected in window set.
13. a kind of screen transmission control device characterized by comprising
Transmission unit, for sending screen display request to receiving end Sink equipment, carried in screen display request to
Show the display parameter information of screen；And send screen to the Sink equipment and show adjustment request, the screen display is adjusted
Display parameter information adjusted is carried in whole request；
Receiving unit carries in first response message for receiving the first response message of the Sink equipment return
The available first display window set of Sink equipment, the first display window set are to be provided according to currently available display
What source and the display parameter information were determined；And the second response message that the Sink equipment returns is received, described second answers
It answers and carries the available second display window set of the Sink equipment in message, according to the second display window set
What currently available display resource and display parameter information adjusted were determined.
14. device as claimed in claim 13, which is characterized in that
The receiving unit is also used to receive the display window adjustment message that the Sink equipment is sent, the display window tune
The available third display window set of the Sink is carried in whole message；
The transmission unit is also used to return to third response message to the Sink equipment, carry in the third response message
The display window information of the with good grounds third display window Resource selection.
15. device as claimed in claim 13, which is characterized in that
The transmission unit, is also used to send display window confirmation message to the Sink equipment, and the display window confirmation disappears
The window ID of the display window selected from the first display window set is carried in breath.
16. a kind of sending ending equipment, which is characterized in that including screen transmission described in claim 13~15 any claim
Control device.
17. a kind of screen transmission control system, which is characterized in that including receiving device and at least one sending ending equipment,
Described in receiving device include screen transmission control device described in claim 5~8 any claim, the transmitting terminal
Equipment includes screen transmission control device described in claim 13~15 any claim.
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| CN201410728347.8A CN105653219B (en) | 2014-12-03 | 2014-12-03 | A kind of screen transmission control method, device, system and relevant device |
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| CN110262765B (en) * | 2019-06-17 | 2020-11-10 | 深圳市炬力北方微电子有限公司 | Full-screen display method of upright image, related equipment and system |
| CN112181342B (en) * | 2020-10-15 | 2023-08-18 | Oppo广东移动通信有限公司 | Display method, display device, electronic equipment and storage medium |
| CN115033335B (en) * | 2022-08-11 | 2023-01-10 | 青岛中正合力软件有限公司 | Display processing method applied to same screen of webpage |
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| US20140267281A1 (en) * | 2013-03-13 | 2014-09-18 | Ericom Software Ltd. | Method for displaying a remote desktop on a portable touch screen device |
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| US8874812B1 (en) * | 2005-03-30 | 2014-10-28 | Teradici Corporation | Method and apparatus for remote input/output in a computer system |
| CN103339595A (en) * | 2011-02-04 | 2013-10-02 | 高通股份有限公司 | Data exchange between wireless source of graphical object and sink device |
| CN102595239A (en) * | 2012-02-24 | 2012-07-18 | 深圳创维－Rgb电子有限公司 | Multi-screen interactive method, device and intelligent television for terminal system |
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