CN105653219A - Screen transmission control method, apparatus, system and related equipment - Google Patents
Screen transmission control method, apparatus, system and related equipment Download PDFInfo
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- CN105653219A CN105653219A CN201410728347.8A CN201410728347A CN105653219A CN 105653219 A CN105653219 A CN 105653219A CN 201410728347 A CN201410728347 A CN 201410728347A CN 105653219 A CN105653219 A CN 105653219A
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Abstract
The invention discloses a screen transmission control method, apparatus, system and related equipment to achieve data transmission from a plurality of Source devices to one Sink device. A screen transmission control method applied by a receiving end device comprises steps of receiving a screen display request sent by a first sending terminal Source device, and returning first answer information to the first Source device. The screen display request carries display parameter information of the display screen; the first answer information carries a first display window cluster set; and the first display window cluster set is determined according to current available display source and display parameter information.
Description
Technical field
The present invention relates to mobile terminal wireless with shielding technical field, particularly relate to a kind of screen transmission control method, device, system and relevant device.
Background technology
Mobile terminal is wireless with screen is emerging on mobile terminals Screen sharing technology, and the content of multimedia on mobile terminal is pushed on remote equipment by means of wireless network and is shown by it. The technical scheme that WiFiDisplay (WFD, Wireless Display) WiFi alliance releases, Miracast is that WiFi alliance realizes the authentication item of product for WFD technology. Miracast equipment provides to simplify and finds and arrange technology so that user can rapidly at equipment room transmitting multimedia contents. This technology is formulated with consumer electronics device manufacturer and chip manufacturer by the movement in Wi-Fi Alliance jointly with authentication item. Miracast user can browse, by large screen television, the photo that smart mobile phone takes, and by conference room projectors Real-Time Sharing notebook computer screen, or watches the programme televised live of home videos Set Top Box on panel computer.
The Floor layer Technology of WFD is WiFiDirect (wireless discovery), Miracast is formed by Wi-FiCERTIFIEDWi-FiDirect and connects, therefore possesses linkage function without accessing inside any Wi-Fi network Miracast authenticating device, thus the discovery mutually of wireless same screen equipment and equipment connect follows WiFiP2P (point-to-point) agreement.
WFD protocol infrastructure comprises two kinds of equipment: transmitting terminal (Source) equipment and receiving terminal (Sink) equipment, Source equipment is used for obtaining the multi-medium datas such as audio frequency and video, it is sent to Sink equipment after encoded to display, common Source equipment has mobile phone, panel computer, notebook computer etc., Sink equipment is for playing after receiving the multi-medium datas such as the audio frequency and video of Source equipment transmission and being decoded, and common Sink equipment has Set Top Box, TV and audio amplifier etc.
The conversation procedure that once connects one to one of WFD standard includes following several stages: (1) DeviceDiscovery (equipment discovery) stage: Source/Sink equipment initiating equipment discovery action, it has been found that have the equipment of WiFiDisplay function under current environment. (2) Servicediscovery (service discovery) stage: the ability that discovering device WiFiDisplay is relevant. (3) DeviceSelect (equipment choice) stage:, user selects the equipment found, initiates to connect. (4) ConnectionSetup (connection establishment) stage: continue to use WiFiDirect connection mechanism and set up MAC layer connection.(5) CapabilityNegotiation (capability negotiation) stage: Source/Sink equipment is consulted by RTSP message, arranged ability parameter, including the port numbers etc. that the coded format of audio frequency and video, display resolution, audio, video data transmit. (6) SessionSetup (session establishment) stage: safeguard session connection and the parameter adjustment conversating in process. (7) DataTransfer (data transmission) stage: Source equipment to Sink device transmission encode after audio, video data. (8) TearDown (conversation end) stage, Source equipment or Sink equipment initiate conversation end operation.
But, current Miracast technology only supports that man-to-man data are transmitted, and namely a Source equipment is to a Sink equipment transmission data, and its network topology structure schematic diagram is as shown in Figure 1. In practical application, for instance needing many-to-one data to transmit in the application scenarios such as visual telephone, wireless monitor, namely multiple Source equipment are to a Sink equipment transmission data, and prior art but cannot realize.
Summary of the invention
The embodiment of the present invention provides a kind of screen transmission control method, device, system and relevant device, in order to realize multiple Source equipment to a Sink equipment transmission data.
The embodiment of the present invention provides the screen transmission control method that a kind of receiving device is implemented, including:
The screen display request that the first transmitting terminal Source equipment that receives sends, carries the display parameter information of screen to be shown in the display request of described screen;
Returning the first response message to a described Source equipment, carry available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
Described method, also includes:
Receiving the screen display adjustment request that a described Source equipment sends, the display of described screen adjusts the display parameter information after carrying adjustment in request;
Return the second response message to a described Source equipment, described second response message carries the second window set that the display parameter information after according to currently available display resource and adjustment is determined.
If determine currently without available display resource according to currently displaying window occupied information, determine currently available display resource in accordance with the following methods:
Send the first display window to the 2nd Source equipment taking currently displaying window and adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Receive the 3rd response message that described 2nd Source equipment returns, described 3rd response message carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection;
Described currently available display resource is determined according to described 2nd Source equipment choice display window information.
When there being display resource to be released, also include:
Send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Receive the 4th response message that described 3rd Source equipment returns, described 4th response message carries the described 3rd Source equipment display window information according to described 4th display window Resource selection.
Described method, also includes:
Receiving the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
The embodiment of the present invention provides a kind of screen transmission being applied to receiving terminal to control device, including:
Receive unit, for receiving the screen display request that the first transmitting terminal Source equipment sends, the display request of described screen carries the display parameter information of screen to be shown;
Transmitting element, for returning the first response message to a described Source equipment, carrying available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
Described reception unit, the screen being additionally operable to receive a described Source equipment transmission shows the request of adjustment, and the display adjustment of described screen carries the display parameter information after adjustment in asking;
Described transmitting element, is additionally operable to return the second response message to a described Source equipment, carries the second window set that the display parameter information after according to currently available display resource and adjustment is determined in described second response message.
Also include determining unit, wherein:
Described transmitting element, if be additionally operable to determine currently without available display resource according to currently displaying window occupied information, send the first display window to the 2nd Source equipment taking currently displaying window and adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Described reception unit, is additionally operable to receive the 3rd response message that described 2nd Source equipment returns, carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection in described 3rd response message;
Determine unit, for determining described currently available display resource according to described 2nd Source equipment choice display window information.
Described transmitting element, it is additionally operable to when there being display resource to be released, send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Described reception unit, is additionally operable to receive the 4th response message that described 3rd Source equipment returns, carries the described 3rd Source equipment display window information according to described 4th display window Resource selection in described 4th response message.
Described reception unit, being additionally operable to receive the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
The embodiment of the present invention provides a kind of receiving device, controls device including the above-mentioned screen transmission being applied to receiving terminal.
The embodiment of the present invention provides the screen transmission control method that a kind of sending ending equipment is implemented, including:
Send screen display request to receiving terminal Sink equipment, the display request of described screen carries the display parameter information of screen to be shown;
Receive the first response message that described Sink equipment returns, described first response message carries the available first display window set of described Sink equipment.
Described method, also includes:
Sending screen to described Sink equipment and show the request of adjustment, the display of described screen adjusts in asking the display parameter information after carrying adjustment;
Receive the second response message that described Sink equipment returns, described second response message carries the available second window set of described Sink equipment.
Described method, also includes:
Receiving the display window adjustment message that described Sink equipment sends, described display window adjusts in message and carries the available 3rd display window set of described Sink;
Return the 3rd response message to described Sink equipment, described 3rd response message carries the display window information according to described 3rd display window Resource selection.
Described method, including:
Sending display window to described Sink equipment and confirm message, described display window confirms the window ID carrying the display window selected from the first display window set in message.
The embodiment of the present invention provides a kind of screen transmission being applied to sending ending equipment to control device, including:
Transmitting element, for sending screen display request to receiving terminal Sink equipment, carries the display parameter information of screen to be shown in the display request of described screen;
Receive unit for receiving the first response message that described Sink equipment returns, described first response message carries the available first display window set of described Sink equipment.
Described transmitting element, is additionally operable to send screen to described Sink equipment and shows the request of adjustment, and the display of described screen adjusts in asking the display parameter information after carrying adjustment;
Described reception unit, is additionally operable to receive the second response message that described Sink equipment returns, carries the available second window set of described Sink equipment in described second response message.
Described reception unit, is additionally operable to receive the display window adjustment message that described Sink equipment sends, and described display window adjusts in message and carries the available 3rd display window set of described Sink;
Described transmitting element, is additionally operable to return the 3rd response message to described Sink equipment, carries the display window information according to described 3rd display window Resource selection in described 3rd response message.
Described transmitting element, is additionally operable to send display window to described Sink equipment and confirms message, and described display window confirms the window ID carrying the display window selected from the first display window set in message.
The embodiment of the present invention provides a kind of sending ending equipment, controls device including the above-mentioned screen transmission being applied to sending ending equipment.
The embodiment of the present invention provides a kind of screen transmission to control system, including receiving device and at least one sending ending equipment, wherein said receiving device includes the above-mentioned screen transmission being applied to receiving device and controls device, and described sending ending equipment includes the above-mentioned screen transmission being applied to sending ending equipment and controls device.
The screen transmission control method that the embodiment of the present invention provides, device, system and relevant device, according to the screen that sending ending equipment sends, receiving device shows that the display parameter information in request and self currently available display resource determine available display window set, sending ending equipment is made to select a display window to carry out screen transmission from the display window set that receiving device provides, so, when there is multiple sending ending equipment, each sending ending equipment can select, by said process, the display window showing self screen, thus meeting many sending ending equipments to transmit the demand of screen to same receiving device, achieve transmission data between many sending ending equipments and a receiving device.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from description, or understand by implementing the present invention. The purpose of the present invention and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is in prior art, transmits the network topology structure schematic diagram of data between a transmitting terminal and a receiving terminal;
Fig. 2 is in the embodiment of the present invention, and screen transmission controls the structural representation of system;
Fig. 3 is in the embodiment of the present invention, the interaction flow schematic diagram between Source equipment and Sink equipment;
Fig. 4 a is in the embodiment of the present invention, the schematic diagram of the transmission screen between Source device A and Sink equipment;
Fig. 4 b is in the embodiment of the present invention, the first display window that Sink equipment can provide to Source device A;
Fig. 4 c is in the embodiment of the present invention, the second display window that Sink equipment can provide to Source device A;
Fig. 5 is in the embodiment of the present invention, and Source device A is to the schematic diagram after Sink device transmission screen;
Fig. 6 a is in the embodiment of the present invention, transmits the schematic diagram of screen between Source equipment B and Sink equipment;
Fig. 6 b is in the embodiment of the present invention, and Sink equipment is to the available display window set schematic diagram of Source equipment B;
Fig. 7 is in the embodiment of the present invention, and Source equipment B is to the schematic diagram after Sink device transmission screen;
Fig. 8 is in the embodiment of the present invention, and Sink equipment can to the display window set schematic diagram after the adjustment of Source device A offer;
Fig. 9 is in the embodiment of the present invention, Source device A transmission screen reduce after display schematic diagram;
Figure 10 is in the embodiment of the present invention, and after Source equipment B adjusts display parameters, Sink equipment can to the schematic diagram of the Source equipment B display window set provided;
Figure 11 is in the embodiment of the present invention, and Source equipment B adjusts after display parameters, and Source device A and Source equipment B are to the schematic diagram of Sink device transmission screen;
Figure 12 is in the embodiment of the present invention, and Sink equipment can to the Source equipment C display window set schematic diagram provided;
Figure 13 is in the embodiment of the present invention, and Source equipment C starts after Sink device transmission screen, Sink device screen display schematic diagram;
Figure 14 is in the embodiment of the present invention, after exiting screen transmission for Source device A, and Sink device screen display schematic diagram;
Figure 15 is in the embodiment of the present invention, and after exiting screen transmission for Source device A and Source equipment C, Sink equipment can to the display window schematic diagram of the Source equipment B increase resolution provided;
Figure 16 is in the embodiment of the present invention, after exiting screen transmission for Source device A and Source equipment C, and Sink device display screen curtain schematic diagram;
Figure 17 is in the embodiment of the present invention, and Sink equipment implements the implementing procedure schematic diagram of screen transmission control method;
Figure 18 is in the embodiment of the present invention, and the screen transmission being applied to Sink equipment side controls the structural representation of device;
Figure 19 is in the embodiment of the present invention, and Source equipment implements the implementing procedure schematic diagram of screen transmission control method;
Figure 20 is in the embodiment of the present invention, and the screen transmission being applied to Source equipment side controls the structural representation of device.
Detailed description of the invention
In order to realize the screen transmission between multiple Source equipment and a Sink equipment, the invention process provides a kind of screen transmission control method, device, system and relevant device.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are illustrated, it is to be understood that, preferred embodiment described herein is merely to illustrate and explains the present invention, it is not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
Embodiment one
As in figure 2 it is shown, the structural representation of the screen transmission control system provided for the embodiment of the present invention, including at least one sending ending equipment 21 and a receiving device 22.
It should be noted that in the network topology structure shown in Fig. 1, owing to only comprising a Sink equipment and a Source equipment, therefore, there is no clear stipulaties for Sink equipment or Source equipment as GO (GroupOwer, group leader). In the embodiment of the present invention, in order to support the screen transmission between multiple Source equipment and a Sink equipment, it is intended that by Sink equipment as GO, no matter the quantity of Source equipment has how many, and it is only as Client (client). So, as long as Sink equipment there remains enough display resources, the screen transmission of self just can be displayed by Source equipment to Sink equipment.
In the embodiment of the present invention, WiFiP2P between Sink equipment with Source equipment, both can be used to be connected, it is possible to use TDLS (TunneledDirectLinkSetup, passage direct link is set up).
Initial time, Sink equipment be in idle condition and etc. service to be supplied, it does not have with any Source equipment set up is connected transmit screen. Assume that now Source device A is intended to initiate screen transmission, then follow the original flow process of Miracast1.0 and be sequentially carried out WFD equipment discovery phase, WFD service discovery stage, equipment choice stage and connection establishment stage.
In WFD capability negotiation stage, first A sends RTSP (RealTimeStreamingProtocol, real-time streaming protocol) the M1 message inquiry Sink RTSP method supported to Sink equipment, and Sink replys M1 response. Then Sink equipment sends the M2 message inquiry Source RTSP method supported to A, and Source replys M2 response. Afterwards, A sends M3 message (RTSPGET_PARAMETER) to obtain the display parameter information of Sink equipment to Sink equipment. In the embodiment of the present invention, in order to support that multiple Source equipment is to a Sink device transmission screen, M3 message is modified, M3 message increases an optional parameters to show that Source equipment wishes that Sink equipment returns the window set that can support self display resolution, wherein, this parameter can include resolution width and the resolution height of Source equipment, and the definition of this parameter is as follows:
Wfd_supported_window_modeSource device resolution width * Source device resolution height.
As shown in Figure 3, for in the embodiment of the present invention, Source equipment and Sink equipment are at the message interaction process schematic diagram of capability negotiation stage, it is possible to comprise the following steps (flow process after completing M1 and M2 interacting message illustrates for Source equipment and Sink equipment below):
S31, Source device A sends screen display request to Sink equipment.
Concrete, Source device A carries the display parameter information of Source equipment in the screen display request sent.
Screen display request is sent to Sink equipment for Source device A, as shown in fig. 4 a, schematic diagram for the transmission screen between Source device A and Sink equipment, Source device A sends M3 message to Sink equipment, wherein carry the display resolution parameter of Source device A, as shown in table 1 for the M3 message that display resolution sends for 960*540, A to Sink equipment:
Table 1
S32, Sink equipment returns response message to Source device A.
If Sink equipment finds wfd_supported_window_mode parameter in M3 message, then need to carry this parameter in M3 response message and currently meet all possible window set of Source device A display resolution parameter, wherein comprising the window attribute (window number, starting point abscissa, starting point vertical coordinate, resolution width, resolution height) etc. of each window. When being embodied as, the display parameter information that Sink equipment sends according to self currently available display resource and Source equipment determines available display window set.
The display resolution assuming Sink equipment is 1920*1080, and currently Sink equipment is in idle condition, the then display resolution parameter (960*540) according to Source device A, the available display window of Sink equipment includes: 1920*1080 and 9,60*,540 two kinds, respectively as shown in figures 4 b and 4 c, the available display window set of Sink equipment includes the display window of a 1920*1080 and the display window of four 960*540, the window attribute of each window is as follows: (00, 01920*1080), (10, 0960*540), (2960, 0960*540), (30, 540960*540) (4960, 540960*540). the response message that then Sink equipment returns M3 message to Source equipment is as shown in table 2:
Table 2
S33, Source device A sends display window to Sink equipment and confirms message.
In upper example, Source device A is after the response message receiving M3 message, according to one display window of display window Resource selection that Sink equipment provides, it is assumed that A selection window is numbered the display window of 0. Then A sends M4 message to Sink equipment, increases an optional parameters in order to show the window number selected by A equipment in M4 message, and the definition of this parameter is as follows:
Window number selected by wfd_supported_window_modeSource.
The M4 message that then A sends to Sink equipment is as shown in table 3:
Table 3
S34, Sink equipment returns display window to Source device A and confirms the response message of message.
Sink equipment is after receiving the display window confirmation message that Source device A sends, according to the window number wherein carried, determine the display window that Source device A selects, and return response message to Source device A, it was shown that Source device A can use this display window. The response message of the M4 message that Sink equipment returns is as shown in table 4:
Table 4
Afterwards, Source device A and Sink equipment complete M5��M7 stage, and the follow-up session connection stage, and start to transmit screen, as it is shown in figure 5, be Source device A to the schematic diagram after Sink device transmission screen.
Embodiment two
In Source device A in the process of Sink device transmission screen, Source equipment B also is intended to same Sink device transmission screen. Equally, complete between Source equipment B and Sink equipment M1 and the M2 of the discovery of WFD equipment, WFD service discovery, equipment choice, connection establishment and capability negotiation stage mutual after, B sends screen display request message to Sink equipment, i.e. M3 message, as shown in Figure 6 a, for transmitting the schematic diagram of screen between Source equipment B and Sink equipment.
As it is shown on figure 3, the interaction flow between Source equipment B and Sink equipment may comprise steps of:
S35, Source equipment B sends screen display request message to Sink equipment.
Concrete, B carries display parameter information in the screen display request Messages Message sent to Sink equipment, it is assumed that for 960*1080. The M3 message that then Source equipment B sends to Sink equipment is as shown in table 5:
Table 5
S36, Sink equipment returns the response message of screen display request message to Source equipment B.
Concrete, Sink equipment is determined according to the display parameter information of self currently available display resource and Source equipment B self can to the Source equipment B display window set provided.
Such as, assume in upper example, if Source device A selection window is numbered the display window of 1, the then display resolution parameter (720*1080) of the Sink equipment available display resource according to self and Source equipment B, determine and can include to the Source equipment B display window provided: 72,0*1,080 mono-kind, owing to Source device A takies display window 1, as shown in Figure 6 b, for 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 a 960*1080, window attribute is as follows: (01200, 0720*1080). the response message that then Sink equipment returns M3 message to Source equipment is as shown in table 6:
Table 6
S37, Source equipment B sends display window to Sink equipment and confirms message.
Source equipment B is after the response message receiving M3 message, according to one display window of display window Resource selection that Sink equipment provides, it is assumed that B selection window is numbered the display window of 0. Then B sends M4 message to Sink equipment, wherein carries the window number selected by BA equipment, and the M4 message that B sends to Sink equipment is as shown in table 7:
Table 7
S38, Sink equipment returns display window to Source equipment B and confirms the response message of message.
Sink equipment is after receiving the Source equipment B display window sent and confirming message, according to the window number wherein carried, determine the Source equipment B display window selected, and return response message to Source equipment B, it was shown that Source equipment B can use this display window. The response message of the M4 message that Sink equipment returns is as shown in table 8:
Table 8
Afterwards, Source equipment B and Sink equipment complete M5��M7 stage, and the follow-up session connection stage, and start to transmit screen, as it is shown in fig. 7, be Source equipment B to the schematic diagram after Sink device transmission screen.
Embodiment three
When being embodied as, if Source device A have selected the display window that window number is 0, namely Source device A takies the whole screen of Sink equipment, now, if Source equipment B is to the transmission screen display request of Sink equipment, owing to whole display resources of current Sink equipment are occupied by Source device A, therefore, Sink equipment is currently without available display resource. In this case, Sink equipment can pass through to send display window to Source device A and adjust message, and notice Source device A needs reduce display window and therefore reduce display resolution. Adjust message to send display window, it is necessary to define new type of message M17, notify that Source equipment current network conditions changes for Sink equipment, it is proposed that Source equipment adjusts display window.Carrying available display window set in M17, its definition is as follows:
The display window set (each window attribute includes window number, starting point abscissa, starting point vertical coordinate, resolution width, resolution height etc.) of wfd_supported_window_mode suggestion.
As it is shown on figure 3, Source device A, between Source equipment B and Sink equipment, mutual flow process may comprise steps of:
S39, Source equipment B sends screen display request to Sink equipment.
Wherein carry the display parameter information (720*1080) of Source equipment B.
S310, Sink equipment sends display window to Source device A and adjusts message.
Sink equipment, after receiving the Source screen sent display request, if self is current without available display resource, then sends display window to Source device A and adjusts message. When being embodied as, display window adjusts in message and carries the available display window set of Sink equipment. Concrete, Sink equipment available whole shows resource according to self, and the display parameter information (720*1080) of the display parameter information of Source device A (960*540) and Source equipment B, determine that the display window being provided to A includes 9,60*,540 mono-kind, but have four positions to select.
As shown in Figure 8, the available display window set of Sink equipment includes the display window of four 960*540, the window attribute of each window is as follows: (00,0960*540), (1960,0960*540), (20,540960*540) (3960,540960*540). The display window that then Sink equipment sends to Source equipment adjusts message and M17 message is as shown in table 9:
Table 9
S311, Source device A returns response message to Sink equipment.
The response message that Source device A returns carries the display window numbering of its selection, it is assumed that the window number of the display window that Source device A selects is 0.
When being embodied as, after Source device A receives M17 message, sending M17 response message, if accepting the suggestion that Sink equipment provides, the state value of M17 response is 200, adds selected window number in wfd_supported_window_mode parameter; If refusal, then the state value of M17 response is 406. Assume that Source device A sends M17 response message as indicated by 10:
Table 10
The screen transmitted through step S39 and step S310, Source device A displays narrowing down in the display window that window number is 0, as shown in Figure 9.
S312, Sink equipment returns the response message of screen display request to Source equipment B.
Wherein carry and comprise wfd_supported_window_mode parameter, for currently display window set can be provided to Source equipment B. Such as now Sink equipment can provide the display window shown in Fig. 6 b.
S313, Source equipment B sends display window to Sink equipment and confirms message.
Wherein, the Source equipment B display window selected numbering is carried.
S314, Sink equipment returns display window to Source equipment B and confirms the response message of message.
If it should be noted that the state value carried in the response message that Source device A returns in step S311 is 406, namely Source device A refusal adjusts display window, then the screen display request of Sink equipment refusal Source equipment B in step S312.
Source device A and Source equipment B are after Sink device transmission screen, and the display screen of Sink equipment is as shown in Figure 7.
Embodiment four
In the process of Source equipment and Sink device transmission screen, Source equipment can also change the screen state of self. Source equipment B in above example is example, if screen rotation occurs Source equipment B, namely its display screen is become transverse screen state from erecting screen state. As it is shown on figure 3, the interaction flow between Source equipment B and Sink equipment may comprise steps of:
S315, Source equipment B sends screen display to Sink equipment and adjusts request.
Wherein, the display parameter information after adjustment is carried. When being embodied as, screen display adjustment request can be sent by M3 message, namely carries the display parameters after adjustment by wfd_supported_window_mode parameter therein. Assume that the display parameter information after Source equipment B adjustment is 960*540.
S316, Sink equipment returns response message to Source equipment B.
In response message, carry the available display window set of Sink equipment. When being embodied as, Sink equipment determines self available display window set according to the display parameter information (960*540) after self currently available display resource and Source equipment B adjustment. Currently, Source device A takies a display window, and therefore, the available display window set of Sink equipment is as follows: (0960,0960*540), (10,540960*540), (2960,540960*540), as shown in Figure 10.
S317, Source equipment B sends display window to Sink equipment and confirms message.
Wherein carry the window number of the Source equipment B display window selected, it is assumed that Source equipment B selects display window 1.
S318, Sink equipment returns display window to Source equipment B and confirms the response message of message.
So far, Source device A and Source equipment B continue transmission screen between Sink equipment, and the display screen of Sink equipment is as shown in figure 11.
Embodiment five,
If at Source device A and Source equipment B in the process of Sink device transmission screen, Source equipment C sends screen display request by M3 message to Sink equipment. Then the interaction flow between Source equipment C and Sink equipment is as it is shown on figure 3, may comprise steps of:
S319, Source equipment C sends screen display request to Sink equipment.
Wherein carry the display parameter information of Source equipment C, it is assumed that for 720*1080.
S320, Sink equipment returns response message to Source equipment C.
Response message carries the available display window set of Sink equipment. Owing to Source device A and Source equipment B take display window shown in Figure 11 respectively, then Sink equipment can determine that self available display window set is as follows: (01200,0720*1080), as shown in figure 12.
If it should be noted that when Source equipment B currently takies the display window in the Sink equipment upper right corner, Sink equipment can adjust the display window that message informing Source equipment adjusts to the lower left corner and display by sending display window to Source equipment B. Its implementation process is referred to step S310 to step S311 and performs, and repeats no more here.
S321, Source equipment C sends display window to Sink equipment and confirms message.
Wherein, Source equipment C display window confirmation message carries the window number of the display window of its selection.
S322, Sink equipment returns response message to Source equipment C.
Complete with Sink equipment after Source equipment C M5��M7 stage and session connection stage mutual after, and between Sink equipment, carry out screen transmission, Sink device screen display schematic diagram is as shown in figure 13.
So far, the display resource of Sink equipment is all occupied, if having Source equipment again to the transmission screen display request of Sink equipment, Sink equipment is by this request of refusal.
Embodiment six
At Source device A, Souur side apparatus B and Source equipment C in the process of Sink device transmission screen, if there being Source equipment to exit screen transmission, then Sink equipment can also, according to currently available display resource, notify current still in the display window set of the available higher resolution of Source equipment self carrying out screen transmission.
As shown in figure 14, after exiting screen transmission for Source device A, Sink device screen display schematic diagram, Source equipment C exits screen transmission more afterwards. Sink equipment is according to currently available display resource, determine the display window that higher resolution can be provided for Source equipment B, as shown in figure 15, it can promote resolution to enter display state all over the screen then can to pass through M17 message informing Source equipment B, and Sink device screen schematic diagram is as shown in figure 16. As it is shown on figure 3, the interaction flow between Sink equipment and Source equipment may comprise steps of:
S323, Sink equipment sends display window to Source equipment B and adjusts message.
Concrete, Sink equipment can pass through M17 message and send display window adjustment message to Source equipment B, wherein carries self available display window set current. For example, it is possible to be (00,01920*1080), (10,0960*540), (2960,0960*540), (30,540960*540), (4960,540960*540).
S324, Source equipment B returns response message to Sink equipment.
Wherein carry the window number of the Source equipment B display window selected.
Afterwards, if Source equipment B also exits screen transmission, then Sink equipment returns idle condition, waits service to be supplied.
In above-mentioned screen transmission control method, according to the screen that sending ending equipment sends, receiving device shows that the display parameter information in request and self currently available display resource determine available display window set, sending ending equipment is made to select a display window to carry out screen transmission from the display window set that receiving device provides, so, when there is multiple sending ending equipment, each sending ending equipment can select, by said process, the display window showing self screen, thus meeting many sending ending equipments to transmit the demand of screen to same receiving device, achieve transmission data between many sending ending equipments and a receiving device.
Based on same inventive concept, the embodiment of the present invention also each provides a kind of receiving device and the screen transmission control method of sending ending equipment enforcement, device and receiving device and sending ending equipment, owing to the principle of said method, device and equipment solution problem is similar to screen transmission control system, therefore said method, Apparatus and system enforcement may refer to the enforcement of method, repeat part and repeat no more.
Embodiment seven
As shown in figure 17, implement the implementing procedure schematic diagram of screen transmission control method for Sink equipment, comprise the following steps:
The screen display request that S171, the first transmitting terminal Source equipment that receives send.
The display request of described screen carries the display parameter information of screen to be shown;
S172, return the first response message to a described Source equipment.
Carrying available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
The screen transmission control method that Sink equipment is implemented, it is also possible to comprise the following steps:
Step one, receive the screen display that a described Source equipment sends and adjust request, the display of described screen adjust please in carry the display parameter information after adjustment;
Step 2, return the second response message to a described Source equipment, described second response message carries the second window set determined according to currently available display resource and the display parameter information after adjusting.
When being embodied as, if determine currently without available display resource according to currently displaying window occupied information, determine currently available display resource in accordance with the following methods:
Step one, send to the 2nd Source equipment taking currently displaying window first display window adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Step 2, receive described 2nd Source equipment return the 3rd response message, described 3rd response message carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection;
Step 3, determine described currently available display resource according to described 2nd Source equipment choice display window information.
It is also preferred that the left when there being display resource to be released, the screen transmission control method that Sink equipment is implemented, it is also possible to comprise the following steps:
Send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Receive the 4th response message that described 3rd Source equipment returns, described 4th response message carries the described 3rd Source equipment display window information according to described 4th display window Resource selection.
When being embodied as, the screen transmission control method that Sink equipment is implemented, can also include: receiving the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
Embodiment eight
As shown in figure 18, the screen transmission for being applied to Sink equipment end controls the structural representation of device, it is possible to including:
Receive unit 181, for receiving the screen display request that the first transmitting terminal Source equipment sends, the display request of described screen carries the display parameter information of screen to be shown;
Transmitting element 182, for returning the first response message to a described Source equipment, carrying available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
When being embodied as, receiving unit 181, the screen being additionally operable to receive a described Source equipment transmission shows the request of adjustment, and the display adjustment of described screen carries the display parameter information after adjustment in asking;
Transmitting element 182, is additionally operable to return the second response message to a described Source equipment, carries the second window set that the display parameter information after according to currently available display resource and adjustment is determined in described second response message.
When being embodied as, the screen transmission being applied to Sink equipment end controls device, it is also possible to include determining unit, wherein:
Transmitting element 182, if be additionally operable to determine currently without available display resource according to currently displaying window occupied information, send the first display window to the 2nd Source equipment taking currently displaying window and adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Receive unit 181, be additionally operable to receive the 3rd response message that described 2nd Source equipment returns, described 3rd response message carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection;
Determine unit, for determining described currently available display resource according to described 2nd Source equipment choice display window information.
When being embodied as, transmitting element 182, it is additionally operable to when there being display resource to be released, send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Receive unit 181, be additionally operable to receive the 4th response message that described 3rd Source equipment returns, described 4th response message carries the described 3rd Source equipment display window information according to described 4th display window Resource selection.
When being embodied as, receive unit 181, being additionally operable to receive the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
For convenience of description, above each several part is divided by function and is respectively described for each module (or unit). Certainly, the function of each module (or unit) can be realized in same or multiple softwares or hardware when implementing the present invention. Such as, when being embodied as, the screen transmission device that embodiment eight provides can be arranged in Sink equipment.
Embodiment nine,
As shown in figure 19, the implementing procedure schematic diagram of screen transmission control method is implemented for Source equipment, it is possible to comprise the following steps:
S191, to receiving terminal Sink equipment send screen display request.
The display request of described screen carries the display parameter information of screen to be shown;
S192, receive described Sink equipment return the first response message.
Described first response message carries the available first display window set of described Sink equipment.
When being embodied as, the screen transmission method that Source equipment is implemented, it is also possible to comprise the following steps:
Step one, send screen display to described Sink equipment and adjust request, the display of described screen adjust please in carry the display parameter information after adjustment;
Step 2, receive described Sink equipment return the second response message, described second response message carries the available second window set of described Sink equipment.
When being embodied as, the screen transmission method that Source equipment is implemented, it is also possible to comprise the following steps:
Step one, receiving the display window that described Sink equipment sends and adjust message, described display window adjusts in message and carries the available 3rd display window set of described Sink;
Step 2, to described Sink equipment return the 3rd response message, described 3rd response message carries the display window information according to described 3rd display window Resource selection.
When being embodied as, the screen transmission method that Source equipment is implemented, it is also possible to comprise the following steps:
Sending display window to described Sink equipment and confirm message, described display window confirms the window ID carrying the display window selected from the first display window set in message.
Embodiment ten
As shown in figure 20, the screen transmission for being applied to Source equipment end controls the structural representation of device, it is possible to including:
Transmitting element 2001, for sending screen display request to receiving terminal Sink equipment, carries the display parameter information of screen to be shown in the display request of described screen;
Receiving unit, 2002, for receiving the first response message that described Sink equipment returns, carry the available first display window set of described Sink equipment in described first response message.
When being embodied as, transmitting element 2001, it is additionally operable to send screen to described Sink equipment and shows the request of adjustment, the display of described screen adjusts in asking the display parameter information after carrying adjustment; Described reception unit 2002, is additionally operable to receive the second response message that described Sink equipment returns, carries the available second window set of described Sink equipment in described second response message.
When being embodied as, receiving unit 2002, be additionally operable to receive the display window adjustment message that described Sink equipment sends, described display window adjusts in message and carries the available 3rd display window set of described Sink; Transmitting element 2001, is additionally operable to return the 3rd response message to described Sink equipment, carries the display window information according to described 3rd display window Resource selection in described 3rd response message.
When being embodied as, transmitting element 2001, it is additionally operable to send display window to described Sink equipment and confirms message, described display window confirms the window ID carrying the display window selected from the first display window set in message.
For convenience of description, above each several part is divided by function and is respectively described for each module (or unit). Certainly, the function of each module (or unit) can be realized in same or multiple softwares or hardware when implementing the present invention. Such as, when being embodied as, the screen transmission device that embodiment ten provides can be arranged in Source equipment.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program. Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect. And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe. It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame. These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment. So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (21)
1. a screen transmission control method, it is characterised in that including:
The screen display request that the first transmitting terminal Source equipment that receives sends, carries the display parameter information of screen to be shown in the display request of described screen;
Returning the first response message to a described Source equipment, carry available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
2. the method for claim 1, it is characterised in that described method, also includes:
Receiving the screen display adjustment request that a described Source equipment sends, the display of described screen adjusts the display parameter information after carrying adjustment in request;
Return the second response message to a described Source equipment, described second response message carries the second window set that the display parameter information after according to currently available display resource and adjustment is determined.
3. method as claimed in claim 1 or 2, it is characterised in that if determine currently without available display resource according to currently displaying window occupied information, determine currently available display resource in accordance with the following methods:
Send the first display window to the 2nd Source equipment taking currently displaying window and adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Receive the 3rd response message that described 2nd Source equipment returns, described 3rd response message carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection;
Described currently available display resource is determined according to described 2nd Source equipment choice display window information.
4. the method for claim 1, it is characterised in that when there being display resource to be released, also include:
Send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Receive the 4th response message that described 3rd Source equipment returns, described 4th response message carries the described 3rd Source equipment display window information according to described 4th display window Resource selection.
5. the method for claim 1, it is characterised in that also include:
Receiving the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
6. a screen transmission controls device, it is characterised in that including:
Receive unit, for receiving the screen display request that the first transmitting terminal Source equipment sends, the display request of described screen carries the display parameter information of screen to be shown;
Transmitting element, for returning the first response message to a described Source equipment, carrying available first display window set in described first response message, described first display window set is determine according to currently available display resource and described display parameter information.
7. device as claimed in claim 6, it is characterised in that
Described reception unit, the screen being additionally operable to receive a described Source equipment transmission shows the request of adjustment, and the display adjustment of described screen carries the display parameter information after adjustment in asking;
Described transmitting element, is additionally operable to return the second response message to a described Source equipment, carries the second window set that the display parameter information after according to currently available display resource and adjustment is determined in described second response message.
8. device as claimed in claims 6 or 7, it is characterised in that also include determining unit, wherein:
Described transmitting element, if be additionally operable to determine currently without available display resource according to currently displaying window occupied information, send the first display window to the 2nd Source equipment taking currently displaying window and adjust message, described first display window adjusts in message and carries available 3rd display window set, and the display parameter information that described 3rd display window set is according to available whole display resources and a described Source equipment and the 2nd Source equipment is determined;
Described reception unit, is additionally operable to receive the 3rd response message that described 2nd Source equipment returns, carries the described 2nd Source equipment display window information according to described 3rd display window Resource selection in described 3rd response message;
Determine unit, for determining described currently available display resource according to described 2nd Source equipment choice display window information.
9. device as claimed in claim 6, it is characterised in that
Described transmitting element, it is additionally operable to when there being display resource to be released, send the second display window to the 3rd Source equipment taking currently displaying window and adjust message, described second display window adjusts in message and carries available 4th display window set, and described 4th display window set is determine according to the display parameter information of available display resource and described 3rd Source equipment after display resource release;
Described reception unit, is additionally operable to receive the 4th response message that described 3rd Source equipment returns, carries the described 3rd Source equipment display window information according to described 4th display window Resource selection in described 4th response message.
10. device as claimed in claim 6, it is characterised in that
Described reception unit, being additionally operable to receive the display window confirmation message that a described Source equipment sends, described display window confirms the window ID carrying the display window that a described Source equipment selects from described first display window set in message.
11. a receiving device, it is characterised in that include the screen transmission described in claim 6��10 any claim and control device.
12. a screen transmission control method, it is characterised in that including:
Send screen display request to receiving terminal Sink equipment, the display request of described screen carries the display parameter information of screen to be shown;
Receive the first response message that described Sink equipment returns, described first response message carries the available first display window set of described Sink equipment.
13. method as claimed in claim 12, it is characterised in that also include:
Sending screen to described Sink equipment and show the request of adjustment, the display of described screen adjusts in asking the display parameter information after carrying adjustment;
Receive the second response message that described Sink equipment returns, described second response message carries the available second window set of described Sink equipment.
14. the method as described in claim 12 or 13, it is characterised in that also include:
Receiving the display window adjustment message that described Sink equipment sends, described display window adjusts in message and carries the available 3rd display window set of described Sink;
Return the 3rd response message to described Sink equipment, described 3rd response message carries the display window information according to described 3rd display window Resource selection.
15. method as claimed in claim 12, it is characterised in that also include:
Sending display window to described Sink equipment and confirm message, described display window confirms the window ID carrying the display window selected from the first display window set in message.
16. a screen transmission controls device, it is characterised in that including:
Transmitting element, for sending screen display request to receiving terminal Sink equipment, carries the display parameter information of screen to be shown in the display request of described screen;
Receive unit, for receiving the first response message that described Sink equipment returns, described first response message carries the available first display window set of described Sink equipment.
17. device as claimed in claim 16, it is characterised in that
Described transmitting element, is additionally operable to send screen to described Sink equipment and shows the request of adjustment, and the display of described screen adjusts in asking the display parameter information after carrying adjustment;
Described reception unit, is additionally operable to receive the second response message that described Sink equipment returns, carries the available second window set of described Sink equipment in described second response message.
18. the device as described in claim 16 or 17, it is characterised in that
Described reception unit, is additionally operable to receive the display window adjustment message that described Sink equipment sends, and described display window adjusts in message and carries the available 3rd display window set of described Sink;
Described transmitting element, is additionally operable to return the 3rd response message to described Sink equipment, carries the display window information according to described 3rd display window Resource selection in described 3rd response message.
19. device as claimed in claim 16, it is characterised in that
Described transmitting element, is additionally operable to send display window to described Sink equipment and confirms message, and described display window confirms the window ID carrying the display window selected from the first display window set in message.
20. a receiving device, it is characterised in that include the screen transmission described in claim 16��19 any claim and control device.
21. a screen transmission controls system, it is characterized in that, including receiving device and at least one sending ending equipment, wherein said receiving device includes the screen transmission described in claim 6��10 any claim and controls device, and described sending ending equipment includes the screen transmission described in claims requirement 16��19 any claim and controls device.
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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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| CN105653219B (en) | 2019-01-01 |
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