CN102497388A - Mobile network terminal and method for wireless screen content transmission between such terminal and TV - Google Patents
Mobile network terminal and method for wireless screen content transmission between such terminal and TV Download PDFInfo
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- CN102497388A CN102497388A CN2011103567265A CN201110356726A CN102497388A CN 102497388 A CN102497388 A CN 102497388A CN 2011103567265 A CN2011103567265 A CN 2011103567265A CN 201110356726 A CN201110356726 A CN 201110356726A CN 102497388 A CN102497388 A CN 102497388A
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Abstract
The invention discloses a mobile network terminal and a method for wireless screen content transmission between such terminal and a TV. The mobile network terminal comprises a CPU (Central Processing Unit), and the CPU comprises a capturing module and a data processing module, wherein the capturing module is used for capturing the data of the currently displayed screen content of own mobile network terminal; and the data processing module is used for coding and packaging the data captured by the capturing module, and further transmitting the processed data to the TV via a wireless network. So, with the mobile network terminal of the invention, the wireless screen content transmission with the TV can be realized so as to meet the demand on that a plurality of users watch the TV together, on the basis of ensuring the independence and the flexibility of the mobile network terminal, the usable range of the mobile network terminal is expanded, and the advantages of the mobile terminal and the TV are fully integrated.
Description
Technical field
The present invention relates to field, mobile network terminal, particularly a kind of mobile network terminal and this terminal and TV carry out the method for wireless biography screen.
Background technology
In family lan; With TV and notebook computer wireless connections; The user can be put arbitrary position at home with notebook computer; Through wireless biography screen, content of operation current on the notebook computer synchronously is shown on the TV immediately, wherein content displayed comprises all kinds of multimedia messagess such as video, audio frequency.The advantage of notebook computer is that disposal ability is strong; Easy to operate; And be easy to obtain entertainment resources such as a large amount of videos, literal, picture and recreation from network; But the sound effect of notebook computer and screen viewing effect will be far below TVs, and wireless biography screen technology can fully combine both advantages just.
At present, the panel computer development is used more and more widely rapidly; Principal element is with respect to notebook computer; It is little, in light weight that panel computer has a volume, advantage such as be easy to carry, but panel computer also has its fatal weakness; Screen is too little, is only limited to a user when watching video perhaps to play games.
Summary of the invention
The method that the embodiment of the invention provides a kind of mobile network terminal and this terminal and TV to carry out wireless biography screen in order to realize the wireless biography screen between mobile network terminal and the TV, fully combines the advantage of mobile network terminal and TV.
A kind of mobile network terminal that the embodiment of the invention provides comprise central processing unit (Central Processing Unit, CPU), this CPU comprises grabbing module and data processing module, wherein,
Grabbing module is used to grasp the data of the mobile network terminal current screen displaying contents under self;
Data processing module is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module grasps to TV.
The method that a kind of mobile network terminal that the embodiment of the invention provides and TV carry out wireless biography screen comprises:
The CPU at mobile network terminal grasps the data of this mobile network terminal current screen displaying contents;
The back wireless network transmissions of passing through is encoded and packed to the data that grasp to TV.
Can know that through above technical scheme the CPU at mobile network terminal comprises grabbing module and data processing module in the embodiment of the invention, wherein, said grabbing module is used to grasp the data of the mobile network terminal current screen displaying contents under self; Said data processing module is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module grasps to TV.Therefore; Use the mobile network terminal among the present invention; Can realize and TV between wireless biography screen, with content displayed on mobile network's terminal screen through wireless network transmissions to the screen of TV, to satisfy the demand that the multi-user watches jointly; On the basis that guarantees mobile network's terminal independence and flexibility, enlarge the scope of application at mobile network terminal, fully combined the advantage of mobile network terminal and TV.
Description of drawings
Fig. 1 is the structural representation of CPU one specific embodiment at mobile network terminal among the present invention;
Fig. 2 is the structural representation of another specific embodiment of CPU at mobile network terminal among the present invention;
Fig. 3 is the schematic flow sheet of a specific embodiment of the inventive method;
Fig. 4 is the schematic flow sheet of another specific embodiment of the inventive method.
Embodiment
The CPU at the mobile network terminal in the embodiment of the invention comprises grabbing module and data processing module, and wherein, said grabbing module is used to grasp the data of the mobile network terminal current screen displaying contents under self; Said data processing module is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module grasps to TV.
Fig. 1 is the structural representation of CPU one specific embodiment at mobile network terminal among the present invention.
Referring to shown in Figure 1, the CPU at the mobile network terminal that the embodiment of the invention provides comprises: grabbing module 11 and data processing module 12, wherein,
Grabbing module 11 is used to grasp the data of the mobile network terminal current screen displaying contents under self;
Data processing module 12 is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module 11 grasps to TV.
Here, said mobile network terminal current screen displaying contents comprises: video, document or interface.Preferably, said mobile network terminal comprises panel computer, and said data processing module 12 is transferred to TV through WiFi after the data that grasp are encoded and packed.
At this moment, this mobile network terminal and TV grasp, the operating process of coding, packing and transmission all controls completion by the CPU at mobile network terminal self, guaranteed the independence and the flexibility at mobile network terminal when carrying out wireless biography screen.
Fig. 2 is the structural representation of another specific embodiment of CPU at mobile network terminal among the present invention.
Referring to shown in Figure 2, the CPU at the mobile network terminal that the embodiment of the invention provides comprises: judge module 21, grabbing module 11, coding module 22, packetization module 23 and transport module 24, wherein,
Judge module 21 is used for judging according to the operating position of this mobile network terminal multimedia interface whether the current screen displaying contents is video;
Grabbing module 11 is used for selecting corresponding method to grasp the data of current screen displaying contents according to the judged result of said judge module 21;
Coding module 22 is used for the data that said grabbing module 11 grasps are encoded, and imports packetization module 23 again;
Packetization module 23 is used for the dateout of said coding module 22 is packaged into transmission stream (Transport Stream, TS) file;
Transport module 24 is used for giving TV with the TS file of packetization module 23 outputs through wireless network transmissions.
Here, if said multimedia interface is being called at this mobile network terminal, the judged result of then said judge module 21 is a video for the current screen displaying contents, otherwise the judged result of said judge module 21 is a non-video for the current screen displaying contents.
Said mobile network terminal current screen displaying contents comprises: video, document or interface.Preferably, said mobile network terminal comprises panel computer, and said transport module 24 is transferred to TV with the TS file through WiFi.
Preferably; Said coding module 22 is encoder H.264, and H.264 encoder can only be encoded to the data of YUV422 form, wherein; H.264 be high compression digital video coding-coding device standard; YUV is by a kind of colour coding method that television system adopted, and wherein " Y " representes lightness, just GTG value; What " U " and " V " represented then is colourity, and effect is to describe colors of image and saturation, is used for the color of specified pixel.
An embodiment; If said mobile network terminal current screen displaying contents is a non-video; Then the data of screen display content are delivered in device (Surface Flinger) the synthetic entering frame buffer (Frame Buffer) through the surface; (Liquid Crystal Display shows in display buffer LCD) to output to LCD then.At this moment, said grabbing module can be passed through device node/dev/graphic/fb0 visit Frame Buffer, grasps the data of screen display content.But; The data format that grabbing module grabs is RGB565 or RGBA8888; Must utilize a transducer that H.264 the data transaction that grabbing module grabs could encoded in the encoder for the data of YUV422 form; Data behind the coding are packaged into the TS file through packing device, are input to transport module then, and transport module is given TV through WiFi with the TS file transfer.
The rgb color pattern is a kind of color standard of industrial quarters, is to obtain color miscellaneous through variation and their stacks each other to red (Red), green (Greeen), blue (Blue) three Color Channels.RGBA is a color space of representing red (Red), green (Greeen), blue (Blue) and Color Channel (Alpha).
Another embodiment; If said mobile network terminal current screen displaying contents is a video; The video data of then exporting after the video decoder decodes at this mobile network terminal hardware that can be write direct covers in the device (overlay), is synthesized in the display buffer of LCD through hardware then.At this moment, grabbing module can't visit overlay through device node, so; Before Video Decoder writes hardware overlay to decoded video data; Grabbing module just grabs this decoded video data, should be input to coding module by decoded video data then, and the data behind the coding are packaged into the TS file through packing device; Be input to transport module then, transport module is given TV through WiFi with the TS file transfer.
The CPU at mobile network terminal grasps a concrete implementation of decoded video data, at interface of player process registration, when playing video file, in the coding process, obtains video data through the mode of readjustment.
Another embodiment if current screen displaying contents existing video in said mobile network terminal has document again, is input in the coding module together after then synthesizing earlier with the video data that grabs with through the document data that device node grasps again and encodes.
Fig. 3 is the schematic flow sheet of a specific embodiment of the inventive method.
Referring to shown in Figure 3, mobile network terminal that the embodiment of the invention provides and TV carry out wireless biography screen method and specifically comprise following step:
Step 301: the CPU at mobile network terminal grasps the data of this mobile network terminal current screen displaying contents.
Here, the screen display content at said mobile network terminal comprises: video, document or interface.
Step 302: the back wireless network transmissions of passing through is encoded and packed to the data that grasp to TV.
Here, preferably, the data that the grasp back of encoding and pack is transferred to TV through WiFi, said mobile network terminal is a panel computer.
At this moment, mobile network terminal and TV grasp and the operating process of packing transmission is all controlled completion by the CPU at mobile network terminal self when carrying out wireless biography screen, have guaranteed the independence and the flexibility at mobile network terminal.
Fig. 4 is the schematic flow sheet of another specific embodiment of the inventive method.
Referring to shown in Figure 4, mobile network terminal that the embodiment of the invention provides and TV carry out the method for wireless biography screen, specifically comprise following step:
Step 401: the CPU at mobile network terminal judges according to the operating position of multimedia interface in this mobile network terminal whether the current screen displaying contents is video.
Here, if said multimedia interface is being called at this mobile network terminal, then judged result is a video for the current screen displaying contents, otherwise judged result is a non-video for the current screen displaying contents.
The screen display content at said mobile network terminal comprises: video, document or interface, said mobile network terminal comprises panel computer.
Step 402: said CPU selects corresponding method to grasp the data of this mobile network terminal current screen displaying contents according to judged result.
Step 403: the data format that the format conversion of the data that grasp is become can be encoded.
Here, because some encoders can only be encoded to the data of set form, for example, H.264 encoder can only be encoded to the data of YUV422 form.
Step 404: the data that will pass through after the format conversion are encoded.
Step 405: will pass through coded data packing back and give TV through wireless network transmissions.
Here, preferably, will pass through coded data packing back and be transferred to TV through WiFi.
An embodiment, if said mobile network terminal current screen displaying contents is a non-video, then the data of screen display content get among the Frame Buffer through Surface Flinger is synthetic, output to then in the display buffer of LCD to show.At this moment; Through slave unit node/dev/graphic/fb0 visit Frame Buffer; Grasp the data of screen display content, the data format that grab this moment is RGB565 or RGBA8888, and H.264 the data that must convert the YUV422 form into could encode in the encoder; Data behind the coding are packaged into the transmission stream file through packing device, are transferred to TV through WiFi then.
Another embodiment; If said mobile network terminal current screen displaying contents is a video, during then the video data after video decoder decodes can be write direct hardware overlay, be synthesized in the display buffer of LCD through hardware then; At this moment; Can't grasp video data through device node, so, before Video Decoder writes hardware overlay to decoded video data; The CPU at mobile network terminal just gets access to this decoded video data; Encode after synthesizing with decoded video data with through the data after the format conversion then, the packing data behind the coding becomes to transmit stream file, is transferred to TV through WiFi then again.
The CPU at mobile network terminal obtains a concrete implementation of decoded video data; At interface of player process registration; When playing video file, in the coding process, obtain video data, synthesize with this video data and through the data to be encoded after the format conversion then through the mode of readjustment.
According to the type of the screen display content at mobile network terminal, select different grasping means, improved extracting efficient, correspondingly improved the frame transfer rate of screen display content.
Can know that through above technical scheme the CPU at mobile network terminal comprises grabbing module and data processing module in the embodiment of the invention, wherein, said grabbing module is used to grasp the data of the mobile network terminal current screen displaying contents under self; Said data processing module is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module grasps to TV; Therefore; Use the mobile network terminal among the present invention; Can realize and TV between wireless biography screen, with content displayed on mobile network's terminal screen through wireless network transmissions to the screen of TV, to satisfy the demand that the multi-user watches jointly; On the basis that guarantees mobile network's terminal independence and flexibility, enlarge the scope of application at mobile network terminal, fully combined the advantage of mobile network terminal and TV.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. a mobile network terminal is characterized in that, this mobile network terminal comprises central processor CPU, and this CPU comprises grabbing module and data processing module, wherein,
Grabbing module is used to grasp the data of the mobile network terminal current screen displaying contents under self;
Data processing module is used for the back wireless network transmissions of passing through is encoded and packed to the data that said grabbing module grasps to TV.
2. mobile network as claimed in claim 1 terminal is characterized in that, said mobile network terminal current screen displaying contents comprises: video, document or interface.
3. mobile network as claimed in claim 1 terminal is characterized in that, said CPU also further comprises judge module, is used for judging according to the operating position of this mobile network terminal multimedia interface whether the current screen displaying contents is video, then
Said grabbing module is used for selecting corresponding method to grasp the data of current screen displaying contents according to the judged result of said judge module.
4. mobile network as claimed in claim 3 terminal is characterized in that, said mobile network terminal also further comprises frame buffer, is used for the data of buffer memory current screen displaying contents when the current screen displaying contents is non-video, then
Said grabbing module is used for when said judged result is non-video for the current screen displaying contents, from said frame buffer, grasps the data of current screen displaying contents.
5. mobile network as claimed in claim 3 terminal is characterized in that, said mobile network terminal also further comprises Video Decoder, is used for decode video data when the current screen displaying contents is video, then
Said grabbing module is used for when said judged result is video for the current screen displaying contents, grasping the video data of exporting after the said video decoder decodes.
6. like any described mobile network terminal in the claim 1～5, it is characterized in that said mobile network terminal comprises panel computer.
7. mobile network terminal and TV carry out the method for wireless biography screen, it is characterized in that this method comprises:
The central processor CPU at mobile network terminal grasps the data of this mobile network terminal current screen displaying contents;
The back wireless network transmissions of passing through is encoded and packed to the data that grasp to TV.
8. method as claimed in claim 7 is characterized in that, said mobile network terminal current screen displaying contents comprises: video, document or interface.
9. method as claimed in claim 7 is characterized in that, this method also further comprises:
CPU judges according to the operating position of multimedia interface in this mobile network terminal whether the current screen displaying contents is video, then
The data that CPU grasps this mobile network terminal current screen displaying contents comprise:
CPU selects corresponding method to grasp the data of this mobile network terminal current screen displaying contents according to judged result.
10. method as claimed in claim 9; It is characterized in that; If said judged result is a non-video for the current screen displaying contents; The data of current screen displaying contents are stored in the frame buffer at this mobile network terminal, and then the data of this mobile network terminal current screen displaying contents of CPU extracting comprise:
CPU grasps the data of current screen displaying contents from said frame buffer.
11. method as claimed in claim 9 is characterized in that, if said judged result is a video for the current screen displaying contents, then the data of this mobile network terminal current screen displaying contents of CPU extracting comprise:
CPU grasps the video data of exporting after the video decoder decodes at this mobile network terminal.
12., it is characterized in that said mobile network terminal comprises panel computer like any described method in the claim 7～11.
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| CN105227981A (en) * | 2015-07-07 | 2016-01-06 | 深圳市美贝壳科技有限公司 | A kind of by method that is aobvious for picture projection and that preserve |
| CN105159643A (en) * | 2015-09-21 | 2015-12-16 | 梁俊健 | Two-dimensional code-based wireless screen transmission authentication method and system |
| CN105159643B (en) * | 2015-09-21 | 2018-04-10 | 梁俊健 | Wireless screen transmission authentication method and system based on Quick Response Code |
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| WO2018040427A1 (en) * | 2016-08-29 | 2018-03-08 | 广州视睿电子科技有限公司 | Screen interface sharing method and system |
| CN106658110A (en) * | 2016-12-30 | 2017-05-10 | 上海寰视网络科技有限公司 | Screen projection method and system |
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Application publication date: 20120613 |