CN102497591B - Terminal and method for realizing wireless screen transmission between terminal and TV - Google Patents
Terminal and method for realizing wireless screen transmission between terminal and TV Download PDFInfo
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Abstract
The invention discloses a terminal and a method for realizing wireless screen transmission between the terminal and a TV. The terminal comprises a surface delivery device, a first bumper, a second bumper and a CPU, when the terminal is in wireless screen transmission with the TV, the CPU in the terminal captures data of to-be-displayed content, and encodes and transmits the data to the TV via a wireless network after packaging. Therefore, the terminal provided by the invention can achieve the wireless screen transmission with the TV, meets the demand on viewing of multiple users, and enlarges the use range on the premise that the independence and the flexibility of the terminal are ensured, thereby fully combining the advantages of the terminal and the TV.
Description
Technical field
The present invention relates to field of terminal, particularly a kind of terminal and this terminal and TV carry out wirelessly passing the method for shielding.
Background technology
In family lan, by TV and notebook computer wireless connections, notebook computer can be put any position at home by user, by wireless biography screen, immediately be synchronously shown on TV by content of operation current on notebook computer, the content wherein shown comprises all kinds of multimedia messages such as video, audio frequency.The advantage of notebook computer is that disposal ability is strong, easy to operate, and be easy to obtain the entertainment resources such as a large amount of videos, word, picture and game from network, but the sound effect of notebook computer and screen viewing effect will far below TVs, and both advantages can fully combine by wireless biography screen technology just.
At present, panel computer development rapidly, apply more and more extensive, principal element is relative to notebook computer, it is little, lightweight that panel computer has volume, and the advantage such as be easy to carry, but panel computer also has its fatal weakness, screen is too little, watches video or is only limited to a user when playing games.
Summary of the invention
The embodiment of the present invention provides a kind of terminal and this terminal and TV to carry out wirelessly passing the method for shielding, in order to realize the wireless biography screen between terminal and TV, fully in conjunction with the advantage of terminal and TV.
A kind of and the TV that the embodiment of the present invention provides carries out the wireless terminal of shielding that passes and comprises: device (Surface Flinger), the first buffer, the second buffer and central processing unit (Central ProcessingUnit are delivered in surface, CPU), wherein
Device is delivered on surface, for when receiving screen-refresh signal, obtain the data of screen content to be displayed, the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time;
First buffer, for the data of buffer memory content to be displayed under the control of described surface delivery device;
Second buffer, for the data of buffer memory content to be displayed under the control of described surface delivery device;
CPU, for capturing the data of content to be displayed in the buffer from the described free time, by the data Replica of described content to be displayed to pre-assigned replica buffer, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV;
Described terminal also comprises: decover overlay and hardware synthesizer HWC, wherein,
Overlay, for when screen displaying video, obtains the data of the video to be shown that video area exports, and the data of described video to be shown is outputted to HWC;
HWC, for by receive video to be shown Data Synthesis and be shown to screen;
Described surface is delivered device and is also comprised a control module further, for start in affiliated terminal to carry out with TV wireless pass shield time control HWC close the function of the data receiving video to be shown; For stop in affiliated terminal carrying out with TV wireless pass shield time control HWC open the function of the data receiving video to be shown.
A kind of terminal that the embodiment of the present invention provides and TV carry out the wireless method of shielding that passes and comprise:
Device is delivered when receiving screen-refresh signal in the surface of described terminal, obtain the data of screen content to be displayed, the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time;
The CPU of described terminal captures the data of content to be displayed from the buffer of described free time, by the data Replica of described content to be displayed to pre-assigned replica buffer, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV;
The method also comprises further:
Described terminal start to carry out with TV wireless pass shield time, the hardware synthesizer HWC that device control terminal is delivered on described surface closes the function of the data receiving video to be shown;
Described terminal stop carrying out with TV wireless passes shield time, the function that device controls the data of described HWC unlatching reception video to be shown is delivered on described surface.
As seen through the above technical solutions, terminal in the embodiment of the present invention comprises surface and delivers device, the first buffer, the second buffer and CPU, this terminal and TV carry out wireless pass shield time, CPU in terminal captures the data of content to be displayed from the buffer of free time, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV.Therefore, terminal in application the present invention, the wireless biography screen between TV can be realized, by content that terminal screen shows by wireless network transmissions on the screen of TV, to meet the demand that multi-user watches jointly, the basis ensureing terminal independence and flexibility expands the scope of application of terminal, fully combines the advantage of terminal and TV.
Accompanying drawing explanation
Fig. 1 is the structural representation of terminal in embodiment in the present invention;
Fig. 2 is the structural representation that in the embodiment of the present invention, device is delivered on surface;
Fig. 3 is the structural representation of CPU in the embodiment of the present invention;
Fig. 4 is the structural representation of a specific embodiment of the inventive method;
Fig. 5 is the schematic flow sheet of another specific embodiment of the inventive method.
Embodiment
A kind of and the TV that the embodiment of the present invention provides carry out wireless pass the terminal of shielding comprise surface deliver device, the first buffer, the second buffer and CPU.
Below in conjunction with accompanying drawing, the terminal in the embodiment of the present invention is described in detail.
Fig. 1 is the structural representation of terminal in the embodiment of the present invention.
Shown in Figure 1, a kind of and TV that the embodiment of the present invention provides carries out the wireless terminal of shielding that passes and comprises: device 11, first buffer 12, second buffer 13 and CPU14 are delivered in surface, wherein,
Device 11 is delivered on surface, for when receiving screen-refresh signal, obtain the data of screen content to be displayed, then the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer 12 buffer memory are shown on screen, using the buffer of described second buffer 13 as the free time, when the data controlling described second buffer 13 buffer memory are shown on screen, using the buffer of described first buffer 12 as the free time;
First buffer 12, for the data of buffer memory content to be displayed under the control of described surface delivery device 11;
Second buffer 13, for the data of buffer memory content to be displayed under the control of described surface delivery device 11;
CPU14, for capturing the data of content to be displayed in the buffer from the described free time, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV.
Here, the effect of described first buffer 12 and described second buffer 13 constantly mutually replaces, when the data that described surface delivery device 11 controls described first buffer 12 buffer memory are shown on screen, using the buffer of described second buffer 13 as the free time, then the data of the screen content to be displayed of acquisition are stored in described second buffer 13 by described surface delivery device 11, now, described CPU14 captures the data of content to be displayed from described second buffer 13; After in described first buffer 12, the data of buffer memory all show, the data that described surface delivery device 11 controls described second buffer 13 buffer memory are shown on screen, and will complete the data release of display in described first buffer 12, as the buffer of new free time, then the data of the screen content to be displayed of acquisition are stored in described first buffer 12 by described surface delivery device 11, now, described CPU14 captures the data of content to be displayed from described first buffer 12.
Here, described screen content to be displayed comprises video or non-video, and preferably, described terminal comprises panel computer.
Described terminal also comprises: decover (overlay) and hardware synthesizer (Hardware Composer, HWC), wherein, overlay is used for when screen displaying video, obtain the data of the video to be shown that video area exports, and the data of described video to be shown are outputted to HWC; HWC for by receive video to be shown Data Synthesis and be shown to screen.
This terminal do not carry out with TV wireless pass shield and screen displaying video time, in order to improve video playback speed, then overlay obtains the data of the video to be shown that video area exports, and be shown on screen after video data to be shown being synthesized by HWC, if at this moment, this terminal starts to carry out wireless biography with TV and shields, and CPU14 cannot grab video data.Therefore, described surface deliver device 13 be also further used for affiliated terminal start to carry out with TV wireless pass shield time control HWC close the function of the data receiving video to be shown, then the data of video to be shown can be identical with the processing procedure of the data of non-video, deliver device 13 by described surface to be cached in idle buffer, described CPU14 captures the data of video to be shown or the data of non-video to be shown from the buffer of free time; Described surface deliver device 13 be also further used for affiliated terminal stop carrying out with TV wireless pass shield time control HWC open the function of the data receiving video to be shown, make terminal stop with TV carry out wireless pass shield after, Graphics Processing process fast can be returned to when screen displaying video.
Fig. 2 is the structural representation that in the embodiment of the present invention, device is delivered on surface.
Shown in Figure 2, the surface in the terminal shown in Fig. 1 is delivered device 11 and is comprised: control module 21, receiver module 22, acquisition module 23 and synthesis memory module 24, wherein,
Control module 21, for start in affiliated terminal to carry out with TV wireless pass shield time control HWC close the function of the data receiving video to be shown;
Receiver module 22, for receiving screen refresh signal;
Acquisition module 23, for obtaining the data of screen content to be displayed when described receiver module 22 receives screen-refresh signal;
Synthesis memory module 24, be stored in idle buffer for the Data Synthesis of content to be displayed that described acquisition module 23 is obtained, and, when the data controlling described first buffer 12 buffer memory are shown on screen, using the buffer of described second buffer 13 as the free time, when the data controlling described second buffer 13 buffer memory are shown on screen, using the buffer of described first buffer 12 as the free time.
Here, described control module 21 be also further used for affiliated terminal stop carrying out with TV wireless pass shield time control HWC open the function of the data receiving video to be shown.
Fig. 3 is the structural representation of CPU in the embodiment of the present invention.
Shown in Figure 3, the CPU14 in the terminal shown in Fig. 1 comprises: handling module 31 and data processing module 32, wherein,
Handling module 31, for capturing the data of content to be displayed in the buffer from the described free time;
Data processing module 32, the data for described handling module 31 is captured carry out encoding and pack after by wireless network transmissions to TV.
Now, this terminal and TV are when carrying out wireless biography screen, and the operating process capturing, encode, pack and transmit all has been controlled by the CPU of terminal self, ensure that independence and the flexibility of terminal.
An embodiment, the function that device 11 control HWC closes the data receiving video to be shown is delivered on the surface of terminal, then when receiving screen-refresh signal, the Data Synthesis of the screen content to be displayed of acquisition is stored in idle buffer, now, described content to be displayed is that video or non-video all can be synthesized in idle buffer, the content to be displayed of buffer memory in the buffer of free time is shown on screen by the post function that then surperficial delivery device calls libgralloc module, libgralloc module is a hardware abstraction layer, the distribution of primary responsibility video memory and release, and the switching display of video memory.Now, CPU14 by the data Replica of the content to be displayed of buffer memory in the buffer of described free time in pre-assigned replica buffer (CopyBuffer), again by the transfer of data of content to be displayed in data processing module, encoded and packing after be transferred to TV by WiFi, complete the wireless biography screen process of terminal and TV.
If realize reading and writing synchronously to pre-assigned Copy Buffer, in libgralloc module, set up mutex, realize the function interface of mutual exclusion and obtain the interface of Copy Buffer, like this, when just can deliver device redraw content on surface, synchronization of access Copy Buffer.
Fig. 4 is the structural representation of a specific embodiment of the inventive method.
Shown in Figure 4, a kind of terminal that the embodiment of the present invention provides and TV carry out the wireless method of shielding that passes and comprise:
Step 401: terminal start to carry out with TV wireless pass shield time, the HWC that device control terminal is delivered on the surface of terminal closes the function of the data receiving video to be shown.
Here, control HWC closes the function of the data receiving video to be shown, then no matter content to be shown is video or non-video, all can be stored in idle buffer, ensures that CPU can grab the data of content to be displayed.
Step 402: device is delivered when receiving screen-refresh signal in described surface, obtain the data of screen content to be displayed, the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time.
Step 403: the CPU of terminal captures the data of content to be displayed from the buffer of described free time, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV.
In step 403, the operating process capturing, encode, pack and transmit all has been controlled by the CPU of terminal self, ensure that independence and the flexibility of terminal.
Here, described screen content to be displayed comprises video or non-video, and preferably, described terminal comprises panel computer.
This terminal do not carry out with TV wireless pass shield and screen displaying video time, in order to improve video playback speed, the video data to be shown of video area is directly outputted to overlay, then will be shown on screen after video data synthesis to be shown by HWC, if at this moment, this terminal starts to carry out wireless biography with TV and shields, and CPU cannot grab video data.Therefore, this terminal start to carry out with TV wireless pass shield time, the function that device control HWC closes the data receiving video to be shown is delivered on surface, then the data of video to be shown can be identical with the processing procedure of the data of non-video, capital is stored in idle buffer, and described CPU captures the data of video to be shown or the data of non-video to be shown from the buffer of free time.This terminal stop carrying out with TV wireless passes shield time, the function of data that device controls described HWC unlatching reception video to be shown is delivered on described surface, makes return to Graphics Processing process fast at screen displaying video.
An embodiment, terminal and TV carry out wirelessly passing when shielding, the function that device control HWC closes the data receiving video to be shown is delivered on surface, then when receiving screen-refresh signal, the Data Synthesis of the screen content to be displayed of acquisition is stored in idle buffer, now, described content to be displayed is that video or non-video all can be synthesized in idle buffer, the content to be displayed of buffer memory in the buffer of free time is shown on screen by the post function that then surperficial delivery device calls libgralloc module, now, CPU14 by the data Replica of the content to be displayed of buffer memory in the buffer of described free time in pre-assigned Copy Buffer, again by the transfer of data of content to be displayed in data processing module, encoded and packing after be transferred to TV by WiFi, complete the wireless biography screen process of terminal and TV.
If realize reading and writing synchronously to pre-assigned Copy Buffer, in libgralloc module, set up mutex, realize the function interface of mutual exclusion and obtain the interface of Copy Buffer, like this, when just can deliver device redraw content on surface, synchronization of access Copy Buffer.
Fig. 5 is the schematic flow sheet of another specific embodiment of the inventive method.
Shown in Figure 5, a kind of terminal that the embodiment of the present invention provides and TV carry out the wireless method of shielding that passes and comprise:
Step 501: terminal start to carry out with TV wireless pass shield time, the HWC that device control terminal is delivered on the surface of terminal closes the function of the data receiving video to be shown.
Step 502: described surface is delivered device and received screen refresh signal.
Step 503: the data that device obtains screen content to be displayed are delivered on described surface, is stored into the Data Synthesis of described content to be displayed in idle buffer.
Here, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time.
Step 504: the CPU of terminal is by the data Replica of the content to be displayed of buffer memory in the buffer of described free time in pre-assigned Copy Buffer, and the Data Format Transform of described content to be displayed become can by the data format of encoding simultaneously.
Here, some encoders can only be encoded to the data of set form, and such as, H.264 encoder can only be encoded to the data of YUV422 form.In back buffer, the form of the data of the screen content to be displayed of buffer memory is RGBA8888 form, therefore, selecting before H.264 the data of encoder to screen content to be displayed are encoded, needs to carry out Data Format Transform.CPU calls hardware to carry out Data Format Transform while in the data Replica of the screen content to be displayed of buffer memory in back buffer to pre-assigned Copy Buffer, and conversion speed is fast, and does not take the resource of CPU.
Step 505: the data after format conversion are encoded.
Step 506: by through coding data packing after by wireless network transmissions to TV.
Here, preferably, TV is transferred to after the data packing of coding by WiFi.
As seen through the above technical solutions, terminal in the embodiment of the present invention comprises surface and delivers device, the first buffer, the second buffer and CPU, this terminal and TV carry out wireless pass shield time, CPU in terminal captures the data of content to be displayed from the buffer of free time, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV.Therefore, terminal in application the present invention, the wireless biography screen between TV can be realized, by content that terminal screen shows by wireless network transmissions on the screen of TV, to meet the demand that multi-user watches jointly, the basis ensureing terminal independence and flexibility expands the scope of application of terminal, fully combines the advantage of terminal and TV.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. carry out with TV wirelessly passing a terminal of shielding, it is characterized in that, comprising: device, the first buffer, the second buffer and central processor CPU are delivered in surface, wherein,
Device is delivered on surface, for when receiving screen-refresh signal, obtain the data of screen content to be displayed, the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time;
First buffer, for the data of buffer memory content to be displayed under the control of described surface delivery device;
Second buffer, for the data of buffer memory content to be displayed under the control of described surface delivery device;
CPU, for capturing the data of content to be displayed in the buffer from the described free time, by the data Replica of described content to be displayed to pre-assigned replica buffer, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV;
Described terminal also comprises: decover overlay and hardware synthesizer HWC, wherein,
Overlay, for when screen displaying video, obtains the data of the video to be shown that video area exports, and the data of described video to be shown is outputted to HWC;
HWC, for by receive video to be shown Data Synthesis and be shown to screen;
Described surface is delivered device and is also comprised a control module further, for start in affiliated terminal to carry out with TV wireless pass shield time control HWC close the function of the data receiving video to be shown; For stop in affiliated terminal carrying out with TV wireless pass shield time control HWC open the function of the data receiving video to be shown.
2. terminal as claimed in claim 1, it is characterized in that, described screen content to be displayed comprises video or non-video.
3. terminal as claimed in claim 1, is characterized in that, described surface is delivered device and comprised:
Receiver module, for receiving screen refresh signal;
Acquisition module, for obtaining the data of screen content to be displayed when described receiver module receives screen-refresh signal;
Synthesis memory module, be stored in idle buffer for the Data Synthesis of content to be displayed that described acquisition module is obtained, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time.
4. terminal as claimed in claim 1, it is characterized in that, described CPU comprises:
Handling module, for capturing the data of content to be displayed in the buffer from the described free time;
Data processing module, the data for described handling module is captured carry out encoding and pack after by wireless network transmissions to TV.
5. as the terminal in Claims 1 to 4 as described in any one, it is characterized in that, described terminal comprises panel computer.
6. terminal and TV carry out wirelessly passing a method of shielding, and it is characterized in that, the method comprises:
Device is delivered when receiving screen-refresh signal in the surface of described terminal, obtain the data of screen content to be displayed, the Data Synthesis of described content to be displayed is stored in idle buffer, and, when the data controlling described first buffer buffers are shown on screen, using the buffer of described second buffer as the free time, when the data controlling described second buffer buffers are shown on screen, using the buffer of described first buffer as the free time;
The central processor CPU of described terminal captures the data of content to be displayed from the buffer of described free time, by the data Replica of described content to be displayed to pre-assigned replica buffer, and after the data of crawl being carried out encode and pack by wireless network transmissions to TV;
The method also comprises further:
Described terminal start to carry out with TV wireless pass shield time, the hardware synthesizer HWC that device control terminal is delivered on described surface closes the function of the data receiving video to be shown;
Described terminal stop carrying out with TV wireless passes shield time, the function that device controls the data of described HWC unlatching reception video to be shown is delivered on described surface.
7. method as claimed in claim 6, it is characterized in that, described screen content to be displayed comprises video or non-video.
8. as the method in claim 6 ~ 7 as described in any one, it is characterized in that, described terminal comprises panel computer.
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| CN201110356220.4A CN102497591B (en) | 2011-11-11 | 2011-11-11 | Terminal and method for realizing wireless screen transmission between terminal and TV |
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| CN201110356220.4A CN102497591B (en) | 2011-11-11 | 2011-11-11 | Terminal and method for realizing wireless screen transmission between terminal and TV |
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| CN104427334A (en) * | 2013-09-02 | 2015-03-18 | 联想(北京)有限公司 | Data processing method, image demonstration method, data processing device and demonstration equipment |
| CN103888817B (en) | 2014-03-24 | 2018-02-27 | 青岛海信移动通信技术股份有限公司 | It is a kind of that file is uploaded into intelligent television and the method and apparatus of played file |
| CN105430486B (en) * | 2015-11-27 | 2019-06-07 | 北京小鸟听听科技有限公司 | The method and apparatus that audio or video plays |
| CN106210887A (en) * | 2016-07-01 | 2016-12-07 | 广州长嘉电子有限公司 | A kind of method and apparatus of display device expansible display output |
| CN106488028B (en) * | 2016-10-31 | 2020-04-03 | 浙江中之杰智能系统有限公司 | Information processing method and mobile terminal |
| CN106453914A (en) * | 2016-10-31 | 2017-02-22 | 努比亚技术有限公司 | Information processing method and terminal |
| CN106455123A (en) * | 2016-10-31 | 2017-02-22 | 努比亚技术有限公司 | Information processing method and terminal |
| CN106851145A (en) * | 2017-01-20 | 2017-06-13 | 广州指观网络科技有限公司 | It is wireless to throw screen system and method |
| CN107948689B (en) * | 2017-12-01 | 2020-01-14 | 南京熊猫电子股份有限公司 | Method and system for controlling internet of things by using intelligent set top box |
| CN110765384A (en) * | 2019-10-21 | 2020-02-07 | 珠海格力电器股份有限公司 | Resolution adaptation method of client, storage medium and terminal |
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