CN104427384A - Data processing method, image demonstration method, data processing apparatus and demonstration equipment - Google Patents
Data processing method, image demonstration method, data processing apparatus and demonstration equipment Download PDFInfo
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- CN104427384A CN104427384A CN201310376595.6A CN201310376595A CN104427384A CN 104427384 A CN104427384 A CN 104427384A CN 201310376595 A CN201310376595 A CN 201310376595A CN 104427384 A CN104427384 A CN 104427384A
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- 238000012545 processing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000003672 processing method Methods 0.000 title claims abstract description 37
- 238000007906 compression Methods 0.000 claims abstract description 42
- 230000006835 compression Effects 0.000 claims abstract description 42
- 230000009467 reduction Effects 0.000 claims description 30
- 238000005516 engineering process Methods 0.000 claims description 19
- 238000004088 simulation Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 21
- 230000005540 biological transmission Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
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- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention provides a data processing method, an image demonstration method, a data processing apparatus and demonstration equipment. The data processing method comprises: when a first picture is being displayed at a first display, image data of the first picture displayed at the first display are obtained; compressed encoding is carried out on the obtained image data to obtain compression data; and the compression data are stored in a first memory temporarily; the compression data in the first memory are transmitted to the demonstration equipment connected with the display equipment, so that the a second picture corresponding to the compression data can be obtained synchronously from a second memory of the demonstration equipment and the second picture can be displayed at a second display of the demonstration equipment. The second picture and the first picture are identical to each other approximately. According to the technical scheme of the embodiment of the invention, synchronous demonstration can be carried out rapidly, thereby improving the using experience of the user.
Description
Technical field
The present invention relates to areas of information technology, more specifically, relate to a kind of data processing method, image demonstration method, data processing equipment and demonstration equipment.
Background technology
Along with the development of electronic technology, there is various electronic equipment, such as notebook, intelligent communications terminal and personal digital assistant etc.On these electronic equipments can displaying video, play games, presentation file etc.But, less or the power consumption of electronic equipment of screen due to electronic equipment and the restriction of performance, need in some cases by the image shows of the screen display on electronic equipment (i.e. display device) on other electronic equipment (i.e. demonstration equipment) of such as television set, projecting apparatus etc.
Described electronic equipment possesses screen interception function usually, thus can intercept picture on display on the display device, uploaded on demonstration equipment by intercepted picture, and carries out picture demonstration based on intercepted screen on demonstration equipment.When intercepting the picture on display on the display device continuously, can synchronous demonstrating intercepts on the larger display of area on demonstration equipment picture.But, in present electronic equipment, in order to ensure the picture quality of intercepted picture, usually Lossless Compression is carried out to the view data of described picture, and the view data after compression is stored hereof, to be sent to demonstration equipment or to meet other application demand of user; Accordingly, in demonstration equipment, receive described file, and process this file to show.
The demonstration poor-performing provided of existing synchronous demonstrating scheme, it is the highest that can only to realize 1-2fps(frame per second) frame per second, the needs of real-time synchronous demonstrating cannot be met, especially for the fast-changing picture such as video playback, game, do not reach the object of real time demonstration completely.
Therefore, expect to provide a kind of synchronous demonstrating technology can with more rapid rate to improve the experience of user.
Summary of the invention
Embodiments provide a kind of data processing method, image demonstration method, data processing equipment and demonstration equipment, it allows to carry out synchronous demonstrating fast, thus improves the experience of user.
On the one hand, provide a kind of data processing method, be applied to the display device with the first display and the first internal memory, this data processing method comprises: when described first display shows the first picture, obtain the view data of the first picture shown on described first display; Compressed encoding is carried out to obtained view data and obtains packed data; Described packed data is temporarily stored in described first internal memory; Packed data in described first internal memory is sent to the demonstration equipment be connected with described display device, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical with described first picture.
In described data processing method, describedly carry out compressed encoding to obtained view data and obtain packed data comprising: utilize JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to obtained view data, and obtain jpeg data as packed data.
Described data processing method also can comprise: the screen resolution determining described first display; Described screen resolution is compared with predetermined resolution; Wherein, when described screen resolution is greater than described predetermined resolution, describedly compressed encoding is carried out to obtained view data and obtains packed data and comprise: by obtained view data reduction scheduled volume, and obtaining reduction data; Compressed encoding is carried out to described reduction data and obtains packed data.
In described data processing method, describedly compressed encoding carried out to described reduction data and obtains packed data and can comprise: utilizing JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to described packed data, and obtain the jpeg data as packed data.
In described data processing method, described display device also can have screen processing unit, this screen processing unit can be used for processing the picture shown on described first display, and the view data of the first picture that described acquisition shows on described first display can comprise: the duplicate instructions sending the view data for being replicated in the first picture that described first display shows to described screen processing unit; Described view data is received from described screen processing unit.
Described data processing method also can comprise: receive the operational order for the second demonstrated picture from described demonstration equipment; Described operational order is simulated, to show the first picture to perform described operational order on described first display in described display device.
On the other hand, provide a kind of image demonstration method, for demonstration equipment, this demonstration equipment comprises display, described image demonstration method can comprise: from another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains by compressing the view data of the picture play on this another equipment; Described packed data is decoded, to obtain the view data corresponding with the described picture play on another equipment; The picture that demonstration is corresponding with decoded view data in real time on the display.
In described image demonstration method, described packed data is the jpeg data utilizing JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and obtain, and describedly carries out decoding to described packed data and can comprise: utilize packed data described in JPEG decoding technique to decode.
In described image demonstration method, described demonstration equipment also can comprise input unit, and described image demonstration method also can comprise: obtain the operational order of described input unit for the picture demonstrated on the display; Described operational order is sent to another equipment described from described demonstration equipment, thus this another equipment performs described operational order.
On the other hand, provide a kind of data processing equipment, can be applicable to the display device with the first display, this data processing equipment can comprise: acquiring unit, during for showing the first picture on described first display, obtain the view data of the first picture shown on described first display; Compression unit, obtains packed data for carrying out compressed encoding to obtained view data; First internal memory, for temporary described packed data; Delivery unit, for the packed data in described first internal memory being sent to the demonstration equipment be connected with described display device, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical with described first picture.
In described data processing equipment, described compression unit can utilize JPEG (joint photographic experts group) JPEG technology carry out JPEG compressed encoding to obtained view data and obtain jpeg data as described packed data.
In described data processing equipment, described acquiring unit also can determine the screen resolution of described display, and described data processing equipment also can comprise comparing unit, for being compared with predetermined resolution by described screen resolution.When described screen resolution is greater than described predetermined resolution, obtained view data reduction scheduled volume is obtained reduction data by described compression unit, and carries out compressed encoding to described reduction data and obtain packed data.
In described data processing equipment, the jpeg data that described compression unit can utilize JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to described reduction data and obtain as packed data.
Described data processing equipment also can comprise screen processing unit, for the treatment of the picture shown on described first display.Described acquiring unit obtains the view data of described first picture by operating as follows: the duplicate instructions sending the view data for being replicated in the first picture that described first display shows to described screen processing unit, responsively receives described view data from described screen processing unit.
Described data processing equipment also can comprise: receiving element, receives the operational order for the second demonstrated picture from described demonstration equipment; Simulation performance element, simulates described operational order in described display device, and shows the first picture to perform described operational order on described first display.
On the other hand, provide a kind of demonstration equipment, can comprise: receiving element, from another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains by compressing the view data of the picture play on this another equipment; Decoding unit, decodes to described packed data, to obtain the view data corresponding with the described picture play on another equipment; Display, synchronously shows the picture corresponding with the view data of decoding for playing with the picture on another equipment described.
In described demonstration equipment, described packed data can be the jpeg data utilizing JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and obtain, and described decoding unit can utilize packed data described in JPEG decoding technique to decode.
Described demonstration equipment also can comprise: input unit, for receiving the input instruction of user; Delivery unit, user is sent to another equipment described for the operational order of the picture demonstrated on the display from described demonstration equipment, thus this another equipment performs described operational order.
In the technical scheme of the above-mentioned data processing method according to the embodiment of the present invention, image demonstration method, data processing equipment and demonstration equipment, packed data is not saved as separately file by directly transmitting the packed data corresponding with display frame between different devices, allow to carry out synchronous demonstrating fast, thus improve the experience of user.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 diagrammatically illustrates the system architecture for carrying out synchronous demonstrating;
Fig. 2 shows the flow chart of the data processing method according to the embodiment of the present invention;
Fig. 3 shows the flow chart of another data processing method according to the embodiment of the present invention;
Fig. 4 shows the flow chart of the image demonstration method according to the embodiment of the present invention;
Fig. 5 is the block diagram of the data processing equipment diagrammatically illustrated according to the embodiment of the present invention;
Fig. 6 is the block diagram of the demonstration equipment diagrammatically illustrated according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.
Fig. 1 diagrammatically illustrates the framework of the system for carrying out synchronous demonstrating.Display device 10 and demonstration equipment 20 is comprised at this framework for the system of carrying out synchronous demonstrating, this display device 10 and demonstration equipment 20 are connected via various wired, wireless communication mode, such as via USB (USB, Universal Serial Bus), the connection such as WiFi communication, thus transmit data between display device 10 and demonstration equipment 20.
Display device 10 in Fig. 1 is such as intelligent telephone set, personal digital assistant (PDA, PersonalDigital Assistant) etc. electronic equipment, on this display device 10 can displaying video, play games, presentation file etc., but the restriction of screen area, power consumption, performance etc. due to display device 10, its multiple users be unsuitable for number is more show picture, thus the plurality of user is difficult to carry out interaction.Therefore, described display device 10 communicates to connect with demonstration equipment 20, thus by the transfer of data of the picture shown on the display device to being applicable to the demonstration equipment 20 showing picture to multiple user.This demonstration equipment is such as the electronic equipment of television set, projecting apparatus etc., its display area usually comparatively large, be connected with power supply.Like this, the picture shown at display device 10 can synchronously be demonstrated on demonstration equipment 20, thus meets the demand of user.
It should be noted that above-mentioned display device 10, demonstration equipment 20 are only schematic, the electronic equipment of suitable type can be selected in different application scenarioss as required as display device 10, demonstration equipment 20.
Fig. 2 shows the flow chart of the data processing method 200 according to the embodiment of the present invention.This data processing method 200 can be applicable to the display device 10 shown in Fig. 1, and it, for being processed by the picture of display on display device 10, carries out synchronous demonstrating to be sent to demonstration equipment 20.In order to demonstrate picture, described display device 10 typically has the first display and the first internal memory, but is not limited thereto, and it can also comprise other building block any.
Described data processing method 200 can comprise: when described first display shows the first picture, obtain the view data (S210) of the first picture shown on described first display; Compressed encoding is carried out to obtained view data and obtains packed data (S220); Described packed data is temporarily stored in described first internal memory (S230); Packed data in described first internal memory is sent to the demonstration equipment be connected with described electronic equipment, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical (S240) with described first picture.
In S210, when described first display shows the first picture, obtain the view data of the first picture shown on described first display.Various technological means can be taked to obtain the view data of the first shown picture.The number of this first picture is generally multiple, and it such as with time sequencing display on the first display.
As the mode of the view data of this first picture of acquisition, photographic apparatus can be utilized to take described first picture, to obtain its view data.In addition, before first picture that can also show on the first display, the view data of this first picture is intercepted in advance.Existing electronic equipment has the screen processing unit that can process the picture shown on described first display usually, and this screen processing unit makes it possible to the view data obtaining the first picture expediently.Such as, in the intelligent telephone set using Android (Android) operating system, this screen processing unit is service SurfaceFlinger.This service SurfaceFlinger provides the function combined display frame in system scope, and the display frame of various application program can be combined by it.Screenshotss functional interface is provided, for the acquisition of the view data of this first picture is provided convenience in the service SurfaceFlinger of more than the Android2.3 version of current use.Particularly, when having screen processing unit in display device 10, this S210 can comprise: the duplicate instructions sending the view data for being replicated in the first picture that described first display shows to described screen processing unit; Described view data is received from described screen processing unit.Now, utilize existing screen processing unit in display device to obtain the view data of the first picture, do not need to modify to the system in display device, correspondingly reduce the workload of exploitation.It should be noted that this service SurfaceFlinger is only schematic, when the operating system of display device is different, the service of other type wherein can be had as screen processing unit.
In S220, compressed encoding is carried out to obtained view data and obtains packed data.The raw image data of the view data of the first picture obtained in S210 normally such as RGB data, its data volume is very large, so the transmission time that the transmission bandwidth needed when transmitting from display device to demonstration equipment is comparatively large or needs are longer.The speed of the data transmission technology of existing equipment room is also enough not fast, in order to shorten the transmission time, needing to compress described raw image data, demonstrating so that the view data of the first obtained picture is sent to demonstration equipment rapidly.
As the mode of obtained view data being carried out to compressed encoding, such as portable network figure (PNG can be taked, Portable Network Graphics) the lossless compression-encoding mode of compression algorithm and so on of form, the lossy compression method coded system of the compression algorithm of such as combining picture experts group (JPEG, Joint Picture Expert Group) form and so on can also be adopted.The decrement of described lossless compression-encoding mode to data is less, and the required transmission time is longer, but the picture quality after compression is better; Described lossy compression method coded system is comparatively large to the decrement of data, and the required transmission time shortens, but the picture quality after compression is weaker.Comparatively speaking, although the compression ratio that JPEG compress technique is removed the image of redundancy and color data in lossy compression method mode and obtained high, it also can represent very abundant lively image.Therefore, can comprise in this S220: utilize JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to obtained view data, and obtain jpeg data as packed data.
In S230, described packed data is temporarily stored in described first internal memory, to be sent to demonstration equipment subsequently.In an embodiment of the present invention, unlike in the prior art, packed data be written to corresponding file and transfer the file to demonstration equipment, but described packed data is directly sent to demonstration equipment in the first internal memory.Therefore, when transmitting the packed data of each picture on the first display continuously to demonstration equipment, utilize this first internal memory can distinguish the packed data of each picture.Exemplarily, transmit again after whole packed datas of described each first picture can being stored in this first internal memory, thus whole packed datas that demonstration equipment can receive each the first picture are demonstrated; Alternatively, can also for arranging separator between the packed data of each the first picture in this first internal memory, the separator set by utilization distinguishes the packed data of each the first picture.
In S240, wired, wireless transmission method as above can be utilized the packed data in described first internal memory to be sent to the demonstration equipment (demonstration equipment 20 as in Fig. 1) be connected with described electronic equipment.This demonstration equipment decodes synchronously to obtain second picture corresponding with described packed data to received packed data in its second internal memory, this second picture is by carrying out compressed encoding and the picture of then decoding accordingly in demonstration equipment and obtaining to the view data of each the first picture in the display device, owing to may there is partial distortion in the process of compressed encoding and decoding, therefore described second picture is similar to identical with described first picture.
In the technical scheme of the above-mentioned data processing method according to the embodiment of the present invention, packed data is not saved as separately file by directly transmitting the packed data corresponding with display frame between different devices, can synchronous demonstrating fast be carried out, thus improve the experience of user.
Fig. 3 shows the flow chart of another data processing method 300 according to the embodiment of the present invention.In this another data processing method 300, step S210 in step S210, S230, S240 and Fig. 2, S230, S240 are identical, and have employed identical reference symbol, here be no longer described, and only describe the data processing method 300 of Fig. 3 and the difference of the data processing method 200 of Fig. 2.
In figure 3, except obtain the view data of the first picture shown on described first display in S210 except, also determine the screen resolution (S212) of described first display; Described screen resolution is compared with predetermined resolution (S214); When described screen resolution is greater than described predetermined resolution, by obtained view data reduction scheduled volume, and obtain reduction data (S222); Compressed encoding is carried out to described reduction data and obtains packed data (S224); When described screen resolution is less than or equal to described predetermined resolution, do not perform described step S222, in S224, compressed encoding carried out to the view data obtained in S210 and obtain packed data, then perform foregoing step S230.That is, in the data processing method 300 of Fig. 3, add step S212 and S214, and suitably have adjusted the compressed encoding operation of the step S220 in Fig. 1 according to the comparative result of S214.Although perform S212 and S214 shown in Fig. 3 after S210, before S210 or with it, side by side S212 and S214 can be performed.
Can be determined that by described S212 and S214 whether the view data of the first picture shown on described first display is very large, when very large, directly reduce in S222, thus the data volume that will transmit can be reduced simply and effectively.In addition, because the resolution of the view data of described first picture is higher, the direct reduction operation in S222 also sharply can not reduce the picture quality of the first picture.Exemplarily, described predetermined resolution can be such as 1280 × 720, and it also can be other value according to the difference of picture or display device.For in described S222 by obtained view data reduction scheduled volume, the length of obtained view data and width directly can be reduced half, three/first-class, reduce more, then the data will transmitted are fewer, but image quality can reduce more; Reduce fewer, then the data will transmitted are more, but image quality can increase.In S224, JPEG (joint photographic experts group) JPEG technology can be utilized to carry out JPEG compressed encoding to described packed data, and obtain the jpeg data as packed data.Now, the frame per second of picture can be brought up to 15 frames (fps) per second, thus drastically increase synchronous demonstrating effect.
In addition, the data processing method 300 of Fig. 3 is also to add step S250, S260 with the difference of the data processing method 200 of Fig. 2.In an embodiment of the present invention, in display device (10) while display the first picture, in demonstration equipment (20), synchronously demonstrate approximate second picture obtained based on this first picture.User watches the second picture usually on this demonstration equipment, and it may need the picture shown by operation, to carry out interaction.Therefore, user may need the picture display controlled by this demonstration equipment on display device, namely this step S250, S260 are that it is mutual to realize with demonstration equipment in the display device, particularly: receive the operational order (S250) for the second demonstrated picture from described demonstration equipment; Described operational order is simulated, to show the first picture to perform described operational order (S260) on described first display in described display device.
It should be noted that for each distinctive points of Fig. 3 and Fig. 2, what can increase in each distinctive points described on the data processing method basis of Fig. 2 is one or more, instead of increases the whole of each distinctive points described like that to Fig. 3.Can carry out as required in practice selecting, combining, to reach required effect.
In the technical scheme of the data processing method according to Fig. 3 of the embodiment of the present invention, directly transmitting on the packed data basis corresponding with display frame between different devices, resolution also in conjunction with picture takes more efficiently data compression scheme, allow to improve synchronous demonstrating effect further, the picture of user on demonstration equipment and display device can also be made mutual, thus further increase the experience of user.
Fig. 4 shows the flow chart of the image demonstration method 400 according to the embodiment of the present invention.Image demonstration method 400 can be applicable to the demonstration equipment 20 shown in Fig. 1, and it, for from display device 10 receiving compressed data, performs the decompression corresponding with the data processing method that composition graphs 2-3 describes, separates coding method, to carry out synchronous demonstrating.This demonstration equipment 20 comprises display, and it can also comprise other building block any.
Described image demonstration method 400 can comprise: from another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains (S410) by compressing the view data of the picture play on this another equipment; Described packed data is decoded, to obtain the view data (S420) corresponding with the described picture play on another equipment; The picture (S430) that demonstration is corresponding with decoded view data in real time on the display.
In S410, from another equipment communicated to connect with described demonstration equipment (i.e. composition graphs 1-3 describe display device) receiving compressed data, this packed data obtains by compressing the view data of the picture play on this another equipment.The packed data of multiple picture is received continuously, therefore will distinguish the packed data of each picture, thus can decode to described packed data and obtain each picture.
In S420, described packed data is decoded, to obtain the view data corresponding with the described picture play on another equipment.The decoding process used in this S420 depends on the compression coding mode used in another equipment described.Such as, described packed data be utilize JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and the jpeg data obtained time, this S420 can comprise and utilizes packed data described in JPEG decoding technique to decode; Described packed data be utilize PNG coding techniques to carry out PNG compressed encoding to described view data and the PNG data obtained time, this S420 can comprise and utilizes packed data described in PNG decoding technique to decode.When described packed data also experienced by the reduction process as shown in the step S222 of Fig. 3, then the view data obtained after being decoded by this S420, by the data reduced, can not obtain the image section of wherein deleted pixel.
In S430, the demonstration picture corresponding with decoded view data in real time on the display, thus with the picture synchronization shown on another equipment described on the display of this demonstration equipment, demonstrate corresponding picture.
Alternatively, this image demonstration method 400 can also comprise: the operational order (S440) of input unit for the picture demonstrated on the display obtaining described demonstration equipment; Described operational order is sent to another equipment described from described demonstration equipment, thus this another equipment performs described operational order (S450) (as shown in the dotted line frame in Fig. 4).As previously mentioned, user may need the picture display controlled by demonstration equipment on display device (i.e. another equipment), and namely this step S440, S450 are that it is mutual to realize with display device on demonstration equipment.Input unit in S440 is such as mouse, keyboard etc., when sending operational order when user operation input unit for the picture demonstrated on the display, in S440, record the information of this operational order, such as, comprise button numerical value, mouse coordinates, push-button type (lift, press) etc.These information of operational order are sent to another equipment described in S450, with the described operational order of simulation in another equipment described (i.e. aforesaid display device), to perform described operational order for the picture of simultaneous display on described display device.
In the technical scheme of the above-mentioned image demonstration method according to the embodiment of the present invention, packed data is not saved as separately file by directly transmitting the packed data corresponding with display frame between different devices, allow to carry out synchronous demonstrating fast, thus improve the experience of user.In addition, the picture of user on demonstration equipment and display device can also be made mutual, thus further increase the experience of user.
Fig. 5 is the block diagram of the data processing equipment 500 diagrammatically illustrated according to the embodiment of the present invention.This data processing equipment 500 can be applicable to the display device 10 shown in Fig. 1, and it, for being processed by the picture of display on display device 10, carries out synchronous demonstrating to be sent to demonstration equipment 20.In order to demonstrate picture, described display device 10 typically has the first display, but is not limited thereto, and it can also comprise other building block any.
This data processing equipment 500 comprises: acquiring unit 510, during for showing the first picture on described first display, obtains the view data of the first picture shown on described first display; Compression unit 520, obtains packed data for carrying out compressed encoding to obtained view data; First internal memory 530, for temporary described packed data; Delivery unit 540, for the packed data in described first internal memory being sent to the demonstration equipment be connected with described electronic equipment, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical with described first picture.
Described acquiring unit 510 can take various technological means to obtain the view data of the first shown picture.The number of the first picture obtained is generally multiple, and it such as with time sequencing display on the first display.
As the mode of the view data of this first picture of acquisition, acquiring unit 510 can utilize photographic apparatus to take described first picture, to obtain its view data.When described display device has had the screen processing unit for the treatment of the picture shown on described first display, acquiring unit 510 can also obtain the view data of described first picture by following operation: the duplicate instructions sending the view data for being replicated in the first picture that described first display shows to described screen processing unit, responsively receives described view data from described screen processing unit.That is, acquiring unit 510 utilizes existing screen processing unit in display device to obtain the view data of the first picture, does not need to modify to the system in display device, correspondingly reduces the workload of exploitation.In the intelligent telephone set using Android operation system, this screen processing unit is service SurfaceFlinger, this service SurfaceFlinger is only schematic, when the operating system of display device is different, wherein can have the service of other type as screen processing unit.
Described compression unit 520 carries out compressed encoding to obtained view data and obtains packed data.The raw image data of the view data of the first picture that acquiring unit 510 obtains normally such as RGB data, its data volume is very large.The speed of the data transmission technology of existing equipment room is also enough not fast, in order to shorten the transmission time, need to utilize this compression unit 520 to compress described raw image data, demonstrate so that the view data of the first obtained picture is sent to demonstration equipment rapidly.
Exemplarily, described compression unit 520 can utilize JPEG (joint photographic experts group) JPEG technology carry out JPEG compressed encoding to obtained view data and obtain jpeg data as described packed data.This is because although JPEG compress technique removes the image of redundancy and color data and the compression ratio obtaining high in lossy compression method mode, it also can represent very abundant lively image.Alternatively, described compression unit 520 can utilize PNG technology carry out PNG compressed encoding to obtained view data and obtain PNG data as described packed data.This PNG compressed encoding is harmless compression coding mode, and it is less to the decrement of data, and the required transmission time is longer, but the picture quality after compression is better.
In addition, described compression unit 520, before carrying out compressed encoding to obtained view data, can also suitably reduce obtained view data, to improve compression coding efficiency.Particularly, the screen resolution of described display can being determined via described acquiring unit 510, comprising comparing unit 550 further at described data processing equipment 500, for being compared with predetermined resolution by described screen resolution.When described screen resolution is greater than described predetermined resolution, obtained view data reduction scheduled volume is obtained reduction data by described compression unit 520, and carries out compressed encoding to described reduction data and obtain packed data.When described screen resolution is less than or equal to described predetermined resolution, described compression unit 520 does not reduce obtained view data, and directly carries out compressed encoding to the view data obtained and obtain packed data.
Can be determined that by the compare operation of described comparing unit 550 whether the view data of the first picture shown on described first display is very large.When very large, first described compression unit 520 reduces the view data of the first picture, thus can reduce the data volume that will transmit simply and effectively.In addition, because the resolution of the view data of described first picture is higher, the direct reduction operation of described compression unit 520 also sharply can not reduce the picture quality of the first picture.Described predetermined resolution can be such as 1280 × 720, and it also can be other value according to the difference of picture or display device.Reduction for described compression unit 520 operates, and the length of obtained view data and width directly can be reduced half, three/first-class.After obtained view data reduction scheduled volume is obtained reduction data by described compression unit 520, its jpeg data that JPEG (joint photographic experts group) JPEG technology can be utilized to carry out JPEG compressed encoding to described reduction data and obtain as packed data.
First internal memory 530 for temporary described packed data, to be sent to demonstration equipment subsequently.In the data processing equipment 500 of the embodiment of the present invention, unlike in the prior art, packed data be written to corresponding file and transfer the file to demonstration equipment, but described packed data is directly sent to demonstration equipment in the first internal memory, thus synchronous demonstrating fast can be carried out on demonstration equipment.When transmitting the packed data of each picture on the first display continuously to demonstration equipment, this first internal memory can be utilized to distinguish the packed data of each picture.Exemplarily, the packed data of each first picture can be transmitted individually to distinguish each the first picture; Can also for arranging separator to distinguish each the first picture between the packed data of each the first picture in this first internal memory.
Described delivery unit 540 utilizes wired, wireless transmission method as above the packed data in described first internal memory to be sent to the demonstration equipment (demonstration equipment 20 as in Fig. 1) be connected with described electronic equipment.This demonstration equipment decodes synchronously to obtain second picture corresponding with described packed data to received packed data in its second internal memory, this second picture is by carrying out compressed encoding and the picture of then decoding accordingly in demonstration equipment and obtaining to the view data of each the first picture in data processing equipment 500, owing to may there is partial distortion in the process of compressed encoding and decoding, therefore described second picture is similar to identical with described first picture.
Alternatively, described data processing equipment 500 can also comprise: receiving element 560, receives the operational order for the second demonstrated picture from described demonstration equipment; Simulation performance element 570, simulates described operational order in described display device, and shows the first picture to perform described operational order (as shown in the dashed rectangle in Fig. 5) on described first display.The picture display that this receiving element 560 and simulation performance element 570 make user be controlled on display device by this demonstration equipment, mutual with what realize with demonstration equipment in the display device, thus promote the experience of user further.
It should be noted that in the block diagram shown in Fig. 5, described comparing unit 550, receiving element 560 and simulation performance element 570 are all optional.Comparing unit 550 to be needed by during obtained view data reduction scheduled volume at described compression unit 520; Needing to realize in the display device need described receiving element 560 with during demonstration equipment mutual and simulate performance element 570.Can come as required in practice suitably to select.
In the technical scheme of the data processing equipment according to Fig. 5 of the embodiment of the present invention, packed data is not saved as separately file by directly transmitting the packed data corresponding with display frame between different devices, can synchronous demonstrating fast be carried out, thus improve the experience of user.
Fig. 6 is the block diagram of the demonstration equipment 600 diagrammatically illustrated according to the embodiment of the present invention.This demonstration equipment 600, for data processing equipment 500 receiving compressed data from Fig. 5, correspondingly performs decompression, separates coding, to carry out synchronous demonstrating.
This demonstration equipment 600 comprises: receiving element 610, and from another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains by compressing the view data of the picture play on this another equipment; Decoding unit 620, decodes to described packed data, to obtain the view data of the described picture play on another equipment; Display 630, synchronously shows the picture corresponding with the view data of decoding for playing with the picture on another equipment described.
Receiving element 610 from another equipment communicated to connect with described demonstration equipment (namely Fig. 5 data processing equipment 500 or comprise its display device) receiving compressed data.The packed data of multiple picture is received continuously, and receiving element 610 can distinguish the packed data of each picture with the internal memory cooperation in demonstration equipment 600, thus can decode to described packed data and obtain each picture.
The decoding process that decoding unit 620 uses depends on the compression coding mode used in another equipment described.Such as, described packed data be utilize JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and the jpeg data obtained time, this decoding unit 620 can utilize packed data described in JPEG decoding technique to decode; Described packed data be utilize PNG coding techniques to carry out PNG compressed encoding to described view data and the PNG data obtained time, this decoding unit 620 can utilize packed data described in PNG decoding technique to decode.When described packed data also experienced by reduction process, then the view data obtained after being decoded by this decoding unit 620, by the data reduced, can not obtain the image section of wherein deleted pixel.
Display 630 demonstrates the picture corresponding with decoded view data in real time, thus with the picture synchronization shown on another equipment described demonstrate corresponding picture.
Alternatively, this demonstration equipment 600 can also comprise: input unit 640, for receiving the input instruction of user; Delivery unit 650, user is sent to another equipment described for the operational order of the picture demonstrated on the display from described demonstration equipment, thus this another equipment performs described operational order (as shown in the dotted line frame in Fig. 6).As previously mentioned, user may need the picture display controlled by demonstration equipment on display device (i.e. another equipment), and namely this input unit 640 and delivery unit 650 are that it is mutual to realize with display device on demonstration equipment.Input unit 640 is such as mouse, keyboard etc.Delivery unit 650 is sent to another equipment described about the information (such as button numerical value, mouse coordinates, push-button type etc.) of operational order, to simulate described operational order in another equipment described, to perform described operational order for the picture of simultaneous display on described display device.
In the technical scheme of the above-mentioned demonstration equipment according to the embodiment of the present invention, packed data is not saved as separately file by directly transmitting the packed data corresponding with display frame between different devices, allow to carry out synchronous demonstrating fast, thus improve the experience of user.In addition, the picture of user on demonstration equipment and display device can also be made mutual, thus further increase the experience of user.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, unit involved in the electronic equipment of foregoing description and the specific implementation of parts, with reference to the diagram in preceding method embodiment and operation, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed unit, parts and method can realize by another way.Such as, device embodiment described above is only schematic, and some features of such as discrete cell can be ignored, or do not perform.In addition, the part steps in said method embodiment can reconfigure, or can execution sequence before changing section step.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (18)
1. a data processing method, is applied to the display device with the first display and the first internal memory, and this data processing method comprises:
When described first display shows the first picture, obtain the view data of the first picture shown on described first display;
Compressed encoding is carried out to obtained view data and obtains packed data;
Described packed data is temporarily stored in described first internal memory;
Packed data in described first internal memory is sent to the demonstration equipment be connected with described display device, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical with described first picture.
2. data processing method according to claim 1, wherein, describedly carry out compressed encoding to obtained view data and obtain packed data comprising:
Utilize JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to obtained view data, and obtain jpeg data as packed data.
3. data processing method according to claim 1, also comprises:
Determine the screen resolution of described first display;
Described screen resolution is compared with predetermined resolution;
Wherein, when described screen resolution is greater than described predetermined resolution, describedly carry out compressed encoding to obtained view data and obtain packed data comprising:
By obtained view data reduction scheduled volume, and obtain reduction data;
Compressed encoding is carried out to described reduction data and obtains packed data.
4. data processing method according to claim 3, wherein, describedly carry out compressed encoding to described reduction data and obtain packed data comprising:
Utilize JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to described packed data, and obtain the jpeg data as packed data.
5. data processing method according to claim 1, wherein, described display device also has screen processing unit, and this screen processing unit is for the treatment of the picture shown on described first display, and the view data of the first picture that described acquisition shows on described first display comprises:
The duplicate instructions of the view data for being replicated in the first picture that described first display shows is sent to described screen processing unit;
Described view data is received from described screen processing unit.
6. data processing method according to claim 1, also comprises:
The operational order for the second demonstrated picture is received from described demonstration equipment;
Described operational order is simulated, to show the first picture to perform described operational order on described first display in described display device.
7. an image demonstration method, for demonstration equipment, this demonstration equipment comprises display, and described image demonstration method comprises:
From another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains by compressing the view data of the picture play on this another equipment;
Described packed data is decoded, to obtain the view data corresponding with the described picture play on another equipment;
The picture that demonstration is corresponding with decoded view data in real time on the display.
8. image demonstration method according to claim 7, wherein said packed data is the jpeg data utilizing JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and obtain,
Describedly decoding is carried out to described packed data comprise: utilize packed data described in JPEG decoding technique to decode.
9. image demonstration method according to claim 7, wherein, described demonstration equipment also comprises input unit, and described image demonstration method also comprises:
Obtain the operational order of described input unit for the picture demonstrated on the display;
Described operational order is sent to another equipment described from described demonstration equipment, thus this another equipment performs described operational order.
10. a data processing equipment, is applied to the display device with the first display, and this data processing equipment comprises:
Acquiring unit, during for showing the first picture on described first display, obtains the view data of the first picture shown on described first display;
Compression unit, obtains packed data for carrying out compressed encoding to obtained view data;
First internal memory, for temporary described packed data;
Delivery unit, for the packed data in described first internal memory being sent to the demonstration equipment be connected with described display device, to make synchronously obtain second picture corresponding with described packed data and show described second picture in the second internal memory of this demonstration equipment on the second display of described demonstration equipment, described second picture is similar to identical with described first picture.
11. data processing equipments according to claim 10, wherein, described compression unit utilizes JPEG (joint photographic experts group) JPEG technology carry out JPEG compressed encoding to obtained view data and obtain jpeg data as described packed data.
12. data processing equipments according to claim 10, wherein, described acquiring unit also determines the screen resolution of described display, and described data processing equipment also comprises comparing unit, for described screen resolution is compared with predetermined resolution,
Wherein, when described screen resolution is greater than described predetermined resolution, obtained view data reduction scheduled volume is obtained reduction data by described compression unit, and carries out compressed encoding to described reduction data and obtain packed data.
13. data processing equipments according to claim 12, wherein, the jpeg data that described compression unit utilizes JPEG (joint photographic experts group) JPEG technology to carry out JPEG compressed encoding to described reduction data and obtains as packed data.
14. data processing equipments according to claim 10, also comprise: screen processing unit, for the treatment of the picture shown on described first display,
Wherein, described acquiring unit obtains the view data of described first picture by following operation: the duplicate instructions sending the view data for being replicated in the first picture that described first display shows to described screen processing unit, responsively receives described view data from described screen processing unit.
15. data processing equipments according to claim 10, also comprise:
Receiving element, receives the operational order for the second demonstrated picture from described demonstration equipment;
Simulation performance element, simulates described operational order in described display device, and shows the first picture to perform described operational order on described first display.
16. 1 kinds of demonstration equipments, comprising:
Receiving element, from another equipment receiving compressed data communicated to connect with described demonstration equipment, this packed data obtains by compressing the view data of the picture play on this another equipment;
Decoding unit, decodes to described packed data, to obtain the view data corresponding with the described picture play on another equipment;
Display, synchronously shows the picture corresponding with the view data of decoding for playing with the picture on another equipment described.
17. demonstration equipments according to claim 16, wherein said packed data is the jpeg data utilizing JPEG (joint photographic experts group) JPEG coding techniques to carry out JPEG compressed encoding to described view data and obtain,
Described decoding unit utilizes packed data described in JPEG decoding technique to decode.
18. demonstration equipments according to claim 16, also comprise:
Input unit, for receiving the input instruction of user;
Delivery unit, user is sent to another equipment described for the operational order of the picture demonstrated on the display from described demonstration equipment, thus this another equipment performs described operational order.
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