CN105704511A - A method for dynamically adjusting wireless video coding - Google Patents
A method for dynamically adjusting wireless video coding Download PDFInfo
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- CN105704511A CN105704511A CN201610063621.3A CN201610063621A CN105704511A CN 105704511 A CN105704511 A CN 105704511A CN 201610063621 A CN201610063621 A CN 201610063621A CN 105704511 A CN105704511 A CN 105704511A
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234381—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
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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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
Abstract
The invention provides a method for dynamically adjusting wireless video coding. The above method includes the steps of obtaining a video source of an electronic apparatus; determining usage states of an input apparatus of the electronic apparatus; determining at least one transmission quality parameter according to the usage states of the input apparatus; encoding the video source into transmission videos; and conducting wireless transmission of the above transmission videos. Thus wireless video encoding can be dynamically adjusted according to changes of usage states of the input apparatus of the electronic apparatus.
Description
Technical field
The present invention is related to a kind of method of wireless video coding of dynamic adjustment, espespecially a kind of use state according to input equipment and the method for dynamically adjusting whole wireless video coding。
Background technology
In recent years, do not use the cables such as RGB cable or USB cable, and through utilizing the Wi-Fi of radio wave (especially Wireless LAN) to transmit the image shown by the information processors such as PC, Smartphone or digital still camera, and the wireless projector projected towards screen is popularized gradually。But, traditional wireless display technology, when coded video, is all with fixing frame per second (framerate), fixing encoding rate and fixing resolution, the video signal to transmit is encoded。But along with popularizing of action image device (such as Smartphone, notebook computer, digital still camera etc.), it is above-mentioned in the way of video signal is encoded by fixing frame per second, regular coding rate and fixing resolution, for this kind of action image device using battery as its power supply, easily cause meaningless power consumption, and be greatly reduced its stand-by time。
Summary of the invention
A kind of method that it is an object of the invention to provide wireless video coding of dynamic adjustment, can according to the use state of the input equipment of electronic installation, to dynamically adjust the coding of wireless video signal。
For reaching above-mentioned purpose, the present invention provides a kind of method of wireless video coding of dynamic adjustment。Said method comprises: obtain the video signal source of electronic installation；Judge the use state of the input equipment of this electronic installation；According at least one transmission quality parameter of the use Determines of this input equipment；Become to transmit video signal by video signal source code according to this at least one transmission quality parameter determined；And wirelessly transmit above-mentioned transmission video signal。
It is also preferred that the left this at least one transmission quality parameter comprises frame per second, and this frame per second changes according to the use state of this input equipment。
It is also preferred that the left the method also comprises: judge that this electronic installation is in the first preset mode or the second preset mode；Wherein this transmission video signal is become to comprise this video signal source code according to this at least one transmission quality parameter: this electronic installation is in this first preset mode if judging, then with the first frame per second, this video signal source code is become this transmission video signal；And if judge that this electronic installation is in this second preset mode, then with the second frame per second, this video signal source code is become this transmission video signal, wherein this second frame per second is more than this first frame per second。
It is also preferred that the left this second frame per second is more than or equal to 30 picture frames (30frames/sec) per second, and this first frame per second is less than 30 picture frames per second and more than a picture frame (1frame/sec) per second。
If it is also preferred that the left this input equipment attonity in Preset Time, then this electronic installation being switched to this first preset mode；And wherein once this input equipment has action, then this electronic installation is switched to this second preset mode。
It is also preferred that the left this at least one transmission quality parameter separately comprises, and this video signal source code becomes the compression ratio and acquisition scope used during this transmission video signal；Wherein become this transmission video signal to comprise this video signal source code according to this at least one transmission quality parameter: when this input equipment attonity in Preset Time, with the first compression ratio, the first acquisition scope and the first frame per second, this video signal source code is become this transmission video signal；And when this input equipment has action, with the second compression ratio, the second acquisition scope and the second frame per second, this video signal source code is become this transmission video signal, wherein this second compression ratio more than this first compression ratio, this second captures scope and first captures scope and/or this second frame per second less than this first frame per second less than this。
It is also preferred that the left the method also comprises: judge that this electronic installation is in the first preset mode or the second preset mode；Wherein this transmission video signal is become to comprise this video signal source code according to this at least one transmission quality parameter: this electronic installation is in this first preset mode if judging, then with the first frame per second and the first compression ratio, this video signal source code being become this transmission video signal, wherein this first frame per second and this first compression ratio are all definite value；And if judge that this electronic installation is in this second preset mode, then with the second compression ratio, this video signal source code is become this transmission video signal, wherein this second compression ratio be higher than this first compression ratio。
It is also preferred that the left when this electronic installation is in this second preset mode, this input equipment has action if judging, then with this second compression ratio and the second frame per second, this video signal source code is become this transmission video signal；And wherein when this electronic installation is in this second preset mode, if judging this input equipment attonity, then with this second compression ratio and the 3rd frame per second, this video signal source code is become this transmission video signal, and the 3rd frame per second is less than this second frame per second。
It is also preferred that the left this second frame per second is more than or equal to 30 picture frames (30frames/sec) per second, and the 3rd frame per second is less than 30 picture frames per second and more than a picture frame (1frame/sec) per second。
Preferably, this at least one transmission quality parameter comprises frame per second, and according to this at least one transmission quality parameter, this video signal source code becomes this transmission video signal system comprise: after according to this at least one transmission quality parameter of use Determines of this input equipment, progressively the frame per second used when encoding this video signal source is adjusted to this at least one transmission quality parameter this frame per second comprised。
Preferably, this at least one transmission quality parameter comprises frame per second, and according to this at least one transmission quality parameter, this video signal source code becomes this transmission video signal system comprise: once according to this at least one transmission quality parameter of use Determines of this input equipment, immediately the frame per second used when encoding this video signal source is adjusted to this at least one transmission quality parameter this frame per second comprised。
Preferably, judge the step of the use state of this input equipment of this electronic installation, according to the step using this at least one transmission quality parameter of Determines of this input equipment, and become the step of this transmission video signal for periodically carrying out this video signal source code according to this at least one transmission quality parameter。
Compared with prior art, the method for the coding dynamically adjusting wireless video signal of the present invention, according to the use state of the input equipment of electronic installation, and the coding of wireless video signal can be dynamically adjusted。When the use state of input equipment changes to some extent, the transmission quality parameter that coding uses can conformably adjust。Additionally, when electronic installation is only battery-powered, the data quantity owing to transmitting video signal is expected to reduce, and can reduce and be wirelessly transferred required power consumption, and then can extend the stand-by time of electronic installation。
Accompanying drawing explanation
Fig. 1 is the functional block diagram of electronic installation and display, and the method that electronic installation have employed the embodiment of the present invention。
Fig. 2 is the flow chart determining at least one transmission quality parameter in one embodiment of the invention。
Fig. 3 is the flow chart switching electronic installation pattern in one embodiment of the invention。
Fig. 4 is that in one embodiment of the invention, electronic installation is in the flow chart of setting wireless video coding during general modfel。
Fig. 5 dynamically adjusts the flow chart of wireless video coding when being that in one embodiment of the invention, electronic installation is in bulletin pattern。
Detailed description of the invention
For making the purpose of the present invention, structure, feature and function thereof are had further understanding, hereby embodiment is coordinated to describe in detail as follows。
Refer to the functional block diagram that Fig. 1, Fig. 1 are electronic installation 100 and display 180, and the method that electronic installation 100 have employed one embodiment of the invention, and it is dynamically adjusted wireless video coding。Electronic installation 100 can be PC, notebook computer, Smartphone, panel computer, a digital still camera etc.。Electronic installation 100 comprises processor 110, input equipment 120, is wirelessly transferred module 130。Wherein, processor 110 is coupled to input equipment 120 and is wirelessly transferred module 130, in order to perform program 140, and controls the operation of electronic installation 100。Input equipment 120 can be slide-mouse, keyboard, touch screen, hand-written version etc., in order to produce input signal and to transmit produced input signal to processor 110。Being wirelessly transferred module 130 can be wireless network card, bluetooth module, WiFi module, and it can together be built into processor 110 and in the same circuit version of electronic installation 100, or be separately positioned in different circuit versions from processor 110。Such as, being wirelessly transferred module 130 can be a wireless network card having universal serial bus (USB) interface, and couples by USB interface and processor 110。Again such as, being wirelessly transferred module 130 can be a Wi-Fi wafer, and set along with processor 110 on same motherboard。
The method that processor 110 can implement the present invention by execution program 140。Wherein, program 140 can be firmware or software。When processor 110 performs program 140, a video signal source S1 of program 140 meeting acquisition electronics 100。In the present embodiment, video signal source S1 is the picture shown by electronic installation 100, and the right present invention is not limited thereto。Such as, in other embodiments of the present invention, video signal source S1 can be viewing window pictures or the content of the film play or photo of the application program performed by electronic installation 100。In addition, program 140 can judge the use state of input equipment 120, and according at least one transmission quality parameter 150 of use Determines of input equipment 120, to be encoded producing transmission video signal S2 to video signal source S1 according to institute's at least one transmission quality parameter 150 of decision。Wherein, above-mentioned at least one transmission quality parameter 150 can including but not limited to frame per second (framerate) 151, compression ratio 152 and acquisition scope 153。For example, when the program 140 performed by processor 110 is judged in input equipment 120 a period of time not operating, then it is dynamically adjusted frame per second 151, and encode to produce to transmit video signal S2 to video signal source S1 according to the frame per second 151 after adjusting, and the frame per second 151 after the adjustment adopted when the frame per second of produced transmission video signal S2 can be equal to coding。Afterwards, the program 140 performed by processor 110 can control to be wirelessly transferred module 130, is wirelessly transferred module 130 with order and transmission video signal S2 is sent to receiving terminal 170。And receiving terminal 170 is coupled to display 180, after receiving terminal 170 receives transmission video signal S2, being decoded transmitting video signal S2, to produce display video signal S3 and display video signal S3 is sent to display 180, display 180 can show received display video signal S3 afterwards。
Refer to Fig. 2, Fig. 2 is the flow chart determining at least one transmission quality parameter in one embodiment of the invention。In step S210, the program 140 performed by processor 110 can judge the use state of the input equipment 120 of electronic installation 100。Then, in step S220, the program 140 performed by processor 110 according to the use state of input equipment 120, can determine at least one transmission quality parameter 150。Afterwards, in step S230, video signal source S1 can be encoded into transmission video signal S2 according at least one transmission quality parameter 150 determined by the program 140 performed by processor 110。Wherein, when electronic installation 100 wirelessly to transmit video pictures to display 180, video signal source S1 can constantly be subtracted, and the program 140 performed by processor 110 understands the use state of the input equipment 120 that judge electronic installation 100 constantly to determine at least one transmission quality parameter 150, and according at least one transmission quality parameter 150 determined, video signal source S1 is encoded into transmission video signal S2。Therefore, step S210, S220 and S230 can periodically carry out。In addition, due to when the use state of input equipment 120 changes to some extent, frame per second 151, compression ratio 152 and/or acquisition scope 153 that coded video source S1 uses can conformably adjust, therefore produced transmission video signal S2 can dynamically react the use state of input equipment 120。
In an embodiment of the present invention, program 140 can be adjusted for frame per second 151, compression ratio 152 and acquisition scope 153 at least one therein。When input equipment 120 attonity in a Preset Time, video signal source S1 is encoded into transmission video signal S2 with the first compression ratio, the first acquisition scope and the first frame per second by program 140；And when input equipment 140 has action, video signal source S1 is then encoded into transmission video signal S2 with the second compression ratio, the second acquisition scope and the second frame per second by program 140。Wherein, the second above-mentioned compression ratio more than the first above-mentioned compression ratio, this second captures scope and first captures scope and/or this second frame per second less than this first frame per second less than this。In other words, in the present embodiment, when input equipment 140 is once there be action, transmitting the data quantity in the unit interval of video signal S2 will data quantity in the unit interval less than video signal source S1。
It is interesting to note that when promoting frame per second 151, the data quantity transmitting video signal S2 can increase, and the display video signal S3 shown by display 180 may appear to smoothly；And when reducing frame per second 151, the data quantity transmitting video signal S2 can reduce, but the display video signal S3 shown by display 180 may appear to relatively have some setbacks。Furthermore, when promoting compression ratio 152, the data quantity transmitting video signal S2 can increase little, but the image quality of the display video signal S3 shown by display 180 is poor；And when reducing compression ratio 152, the data quantity transmitting video signal S2 can become big, and the image quality of the display video signal S3 shown by display 180 is preferably。Additionally, when strengthening acquisition scope 153, the data quantity transmitting video signal S2 can increase, and the display video signal S3 resolution shown by display 180 is higher；And when reducing acquisition scope 153, the data quantity transmitting video signal S2 can reduce, but the display video signal S3 resolution shown by display 180 is relatively low。Wherein, above-mentioned acquisition scope 153 is set when video signal source S1 is encoded, and is that whole video signal source S1 picture is encoded, or only the partial picture of video signal source S1 is encoded。If only the partial picture of video signal source S1 being encoded, then the display video signal S3 shown by display 180 also can be only the partial picture captured。
As for the frame per second 151 of bigger frame per second or less, compression ratio 152 and/or acquisition scope 153, video signal source S1 to be encoded, then visual use occasion carries out different settings。For example, if electronic installation 100 is only battery-powered, when attonity in input equipment 120 1 Preset Time, frame per second 151 can be downgraded, and the frame per second transmitting video signal S2 is also downgraded jointly, now the frame per second owing to transmitting video signal S2 is downgraded, therefore electronic installation 100 required power consumption when transmitting above-mentioned transmission video signal S2 also reduces jointly, and can extend the stand-by time of electronic installation 100。Again such as, user is carrying out bulletin, and its interior mobile slide-mouse vernier of the display video signal S3 shown by display 180 must seem smooth without the sense that pauses, and in the case, frame per second 151 can be raised accordingly。Again such as, user is carrying out bulletin equally, but the sense that pauses need not be appeared not to by its interior mobile slide-mouse vernier of display video signal S3 shown by display 180, in the case because of the replacement frequency of the picture of bulletin very low (about a few minutes change one), so time can turn down frame per second 151。Again such as, when user watches film, input equipment 120 can be failure to actuate for a long time, and now frame per second 151 can be elevated, so that display video signal S3 shown by display 180 is smooth, and comfort level when will not affect user viewing film。
In an embodiment of the present invention, the user of electronic installation 100 can be decided in its sole discretion and whether enable the present invention and dynamically adjust the function of wireless video coding。When the user of electronic installation 100 does not enable the function of the above-mentioned wireless video coding of dynamic adjustment, then with fixing frame per second, fixing encoding rate and fixing resolution, video signal source S1 will be encoded, that is neither change in order to all coding settings of coded video source S1；And when the user of electronic installation 100 enables the function of the above-mentioned wireless video coding of dynamic adjustment, then can judge that the use state of input equipment 120 of electronic installation 100 is to determine at least one transmission quality parameter 150, and according at least one transmission quality parameter 150 determined, video signal source S1 is encoded into transmission video signal S2。In an embodiment of the present invention, user can pass through program 140 and sets the function whether enabling the above-mentioned wireless video coding of dynamic adjustment。And in an embodiment of the present invention, electronic installation 100 can separately include a button, user can pass through this button to switch the open and close of the function of the above-mentioned wireless video coding of dynamic adjustment。For knowing whether the function distinguishing the above-mentioned wireless video coding of dynamic adjustment is unlocked, electronic installation 100 can be distinguished by its pattern 160。Wherein, pattern 160 can be the numerical value of the state of a switch, two bits, and can be implemented by the mode of hardware or software。For convenience of description, in the following description, when the function dynamically adjusting wireless video coding of electronic installation 100 is unlocked, electronic installation 100 is namely claimed to be in " bulletin pattern "；And when the function dynamically adjusting wireless video coding of electronic installation 100 is closed, namely claim electronic installation 100 to be in " general modfel "。
Refer to the flow chart that Fig. 3, Fig. 3 are the pattern 160 switching electronic installation 100 in one embodiment of the invention。In the present embodiment, electronic installation 100 preset mode is general modfel, therefore in step S310, namely the pattern of electronic installation 100 is set to general modfel。Afterwards, in step s 320, then judge whether user switches to bulletin pattern by electronic installation 100。If electronic installation 100 to be switched to bulletin pattern by user, then carry out step S330, be set as bulletin pattern with the pattern by electronic installation 100；Otherwise, then carry out step S310, make the pattern of electronic installation 100 be still maintained at general modfel。Additionally, when, after execution of step S330, electronic installation 100 can carry out step S340, to judge whether user switches to general modfel by electronic installation 100。If electronic installation 100 to be switched to general modfel by user, then carry out step S310, be set as general modfel with the pattern by electronic installation 100；Otherwise, then carry out step S330, make the pattern of electronic installation 100 be still maintained at bulletin pattern。
The pattern of electronic installation 100 is except can being switched voluntarily by user, in other embodiments of the present invention, also can switch the pattern of electronic installation 100 according to the use state of input equipment 120。In detail, program 140 can determine whether input equipment 120 whether attonity in a Preset Time, and program 140 judges input equipment 120 attonity in above-mentioned Preset Time, then electronic installation is switched to general modfel。Otherwise, electronic installation 100 once judge that input equipment 120 has action, is then switched to bulletin pattern by program 140。
In an embodiment of the present invention, when electronic installation 100 is in bulletin pattern, the frame per second 151 when its frame per second 151 can be configured to relatively general modfel is big。In other words, when electronic installation 100 is in bulletin pattern, video signal source S1 can be encoded by program 140 with bigger frame per second 151, to promote the data quantity and frame per second transmitting video signal S2。Relatively, in an alternative embodiment of the invention, when electronic installation 100 is in bulletin pattern, frame per second 151 when its frame per second 151 can be configured to compared with general modfel is little, that is when electronic installation 100 is in bulletin pattern, video signal source S1 can be encoded by program 140 with less frame per second 151, to reduce the data quantity and frame per second transmitting video signal S2。As for the frame per second of bigger frame per second or less, video signal source S1 to be encoded, then visual use occasion carries out different settings。
In an alternative embodiment of the invention, when electronic installation 100 is in bulletin pattern, the compression ratio 152 when its compression ratio 152 can be configured to relatively general modfel is big。In other words, when electronic installation 100 is in bulletin pattern, video signal source S1 can be encoded by program 140 with bigger compression ratio 152, to reduce the data quantity transmitting video signal S2。
Refer to Fig. 4 and Fig. 5, Fig. 4 is that in one embodiment of the invention, electronic installation 100 is in the flow chart of the coding of setting wireless video signal during general modfel, and dynamically adjusts the flow chart of the coding of wireless video signal when Fig. 5 is that in one embodiment of the invention, electronic installation 100 is in bulletin pattern。As shown in Figure 4, when the pattern of electronic installation 100 is general modfel, step S510 can be carried out, frame per second 151 to be set as FN, and compression ratio 152 is set as CN。Wherein, FN and CN is all the definite value more than zero。In other words, when electronic installation 100 is in general modfel, namely the function dynamically adjusting wireless video coding is closed, and video signal source S1 will be encoded by program 140 with fixing frame per second FN and fixing compression ratio CN, that is all maintains in order to all coding settings of coded video source S1 and immobilize。Additionally, as it is shown in figure 5, when the pattern of electronic installation 100 is bulletin pattern, in step S410, program 140 will first carry out step S410, to judge whether input equipment 120 has action。If input equipment 120 has action, then carry out step S420；Otherwise, if input equipment 120 attonity, then carry out step S450。In the step s 420, program 140 can judge the mode of adjustment frame per second 151。Wherein, the adjustment mode of frame per second 151 can be set by user by program 140 or be changed。If judging that the adjustment mode of frame per second 151 then performs step S430 for " immediately formula " in the step s 420；If judging that in step S430 the adjustment mode of frame per second 151 then performs step S440 for " gradual "。In step S430, the state of electronic installation 100 can be set to " immediate status " by program 140, and frame per second 151 is set to FP immediately, and reclocking input equipment 120 continues the not operating time。Wherein, FP can be greater than the definite value of 0, and its unit is how many picture frames per second (frame/second), and when electronic installation 100 is in " immediate status " under " bulletin pattern ", frame per second 151 can be adjusted to FP。In step S440, the state of electronic installation 100 also can be set to " immediate status " by program 140, and frame per second is adjusted progressively in time t to FP, and reclocking input equipment 120 continues the not operating time。Wherein, time t can set before electronic installation 100 dispatches from the factory, or open to user sets itself。The purpose of setting time t is in that when dynamically adjusting frame per second 151, the image quality of produced transmission video signal S2 will not instantaneous variation too big, and maintain the comfort level of beholder's viewing。In an embodiment of the present invention, time t can be 3 seconds, 5 seconds, 15 seconds, 30 seconds, one minute ... a wherein numerical value。Additionally, in step S450, program 140 can judge that input equipment 120 continues whether the not operating time has already been through Preset Time。Wherein, above-mentioned Preset Time also can set before electronic installation 100 dispatches from the factory, or open to user sets itself。In an embodiment of the present invention, above-mentioned Preset Time can be 30 seconds, one minute, two minutes, three minutes ... a wherein numerical value。If program 140 judges that in step S450 input equipment 120 continues the not operating time and has already been through Preset Time, then carry out step S460；Otherwise, then returning to step S410, accumulative input equipment 120 continues the not operating time unceasingly。In step S460, program 140 can judge the mode adjusting frame per second 151, and similar to step S420。If judging that in step S460 the adjustment mode of frame per second 151 then performs step S470 for " immediately formula "；If judging that in step S460 the adjustment mode of frame per second 151 then performs step S480 for " gradual "。In step S460, the state of electronic installation 100 can be set to " viewing and admiring state " by program 140, and frame per second 151 is set to FW immediately。Wherein, FW can be greater than the definite value of 0, and its unit is how many picture frames per second (frame/second), and when electronic installation 100 is in " viewing and admiring state " under " bulletin pattern ", frame per second 151 can be adjusted to FW。In step S480, the state of electronic installation 100 also can be set to " viewing and admiring state " by program 140, and adjusts frame per second to FW progressively in time t。After above-mentioned step S430, S440, S470 and S480 either step have performed, namely return to step S410, to continue to judge whether input equipment 120 has action。In an alternative embodiment of the invention, when electronic installation 100 is in bulletin pattern, no matter the state of electronic installation 100 is " immediate status " or " viewing and admiring state ", it is definite value in order to the compression ratio 152 that video signal source S1 is encoded, not because the state of electronic installation 100 changes for " immediate status " or " viewing and admiring state ", and compression ratio 152 now can be higher than the compression ratio 152 used when electronic installation 100 is in general modfel。
Foundation described above and Fig. 5 are it can be seen that when electronic installation 100 is in bulletin pattern, according to whether input equipment 120 has action, and can be set as " immediate status " or " viewing and admiring state " further by the state of electronic installation 100。When electronic installation 100 is in " immediate status " of bulletin pattern, frame per second 151 can be adjusted to FP, and when electronic installation 100 is in " the viewing and admiring state " of bulletin pattern, frame per second 151 can be adjusted to FW。In an embodiment of the present invention, FP is more than or equal to 30 picture frames (30frames/sec) per second, and FW is less than 30 picture frames per second and more than a picture frame (1frame/sec) per second。
In sum, by the method for the coding dynamically adjusting wireless video signal of the present invention, can according to the use state of the input equipment of electronic installation, and the method dynamically adjusting the coding of wireless video signal。When the use state of input equipment changes to some extent, compression ratio, acquisition scope and/or frame per second that coding uses can conformably adjust。Additionally, when electronic installation is only battery-powered, the data quantity owing to transmitting video signal is expected to reduce, and can reduce and be wirelessly transferred required power consumption, and then can extend the stand-by time of electronic installation。
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example implementing the present invention。It must be noted that, the embodiment disclosed is not limiting as the scope of the present invention。On the contrary, the change made without departing from the spirit and scope of the present invention and retouching, all belong to the scope of patent protection of the present invention。
Claims (12)
1. the method for the wireless video coding of dynamic adjustment, it is characterised in that including:
Obtain the video signal source of electronic installation；
Judge the use state of the input equipment of this electronic installation；
According at least one transmission quality parameter of the use Determines of this input equipment；
Become to transmit video signal by this video signal source code according to this at least one transmission quality parameter；And
This transmission video signal of Wireless transceiver。
2. the method for claim 1, it is characterised in that this at least one transmission quality parameter comprises frame per second, and this frame per second changes according to the use state of this input equipment。
3. method as claimed in claim 2, it is characterised in that also comprise:
Judge that this electronic installation is in the first preset mode or the second preset mode；
Wherein this transmission video signal is become to comprise this video signal source code according to this at least one transmission quality parameter:
If judging, this electronic installation is in this first preset mode, then with the first frame per second, this video signal source code is become this transmission video signal；And
If judging, this electronic installation is in this second preset mode, then with the second frame per second, this video signal source code is become this transmission video signal, and wherein this second frame per second is more than this first frame per second。
4. method as claimed in claim 3, it is characterised in that this second frame per second is more than or equal to 30 picture frames per second, and this first frame per second is less than 30 picture frames per second and more than a picture frame per second。
5. method as claimed in claim 3, it is characterised in that if this input equipment attonity in Preset Time, then this electronic installation is switched to this first preset mode；And
Wherein once this input equipment has action, then this electronic installation is switched to this second preset mode。
6. method as claimed in claim 2, it is characterised in that this at least one transmission quality parameter separately comprises this video signal source code becomes the compression ratio and acquisition scope used during this transmission video signal；
Wherein this transmission video signal is become to comprise this video signal source code according to this at least one transmission quality parameter:
When this input equipment attonity in Preset Time, with the first compression ratio, the first acquisition scope and the first frame per second, this video signal source code is become this transmission video signal；And
When this input equipment has action, with the second compression ratio, the second acquisition scope and the second frame per second, this video signal source code is become this transmission video signal, wherein this second compression ratio more than this first compression ratio, this second captures scope and first captures scope and/or this second frame per second less than this first frame per second less than this。
7. the method for claim 1, it is characterised in that also comprise:
Judge that this electronic installation is in the first preset mode or the second preset mode；
Wherein this transmission video signal is become to comprise this video signal source code according to this at least one transmission quality parameter:
If judging, this electronic installation is in this first preset mode, then with the first frame per second and the first compression ratio, this video signal source code is become this transmission video signal, and wherein this first frame per second and this first compression ratio are all definite value；And
If judging, this electronic installation is in this second preset mode, then with the second compression ratio, this video signal source code is become this transmission video signal, and wherein this second compression ratio is higher than this first compression ratio。
8. method as claimed in claim 7, it is characterised in that when this electronic installation is in this second preset mode, this input equipment has action if judging, then with this second compression ratio and the second frame per second, this video signal source code is become this transmission video signal；And
Wherein when this electronic installation is in this second preset mode, if judging this input equipment attonity, then with this second compression ratio and the 3rd frame per second, this video signal source code is become this transmission video signal, and the 3rd frame per second is less than this second frame per second。
9. method as claimed in claim 8, it is characterised in that this second frame per second is more than or equal to 30 picture frames per second, and the 3rd frame per second is less than 30 picture frames per second and more than a picture frame per second。
10. the method for claim 1, it is characterized in that, this at least one transmission quality parameter comprises frame per second, and according to this at least one transmission quality parameter, this video signal source code becomes this transmission video signal system comprise: after according to this at least one transmission quality parameter of use Determines of this input equipment, progressively the frame per second used when encoding this video signal source is adjusted to this at least one transmission quality parameter this frame per second comprised。
11. the method for claim 1, it is characterized in that, this at least one transmission quality parameter comprises frame per second, and according to this at least one transmission quality parameter, this video signal source code becomes this transmission video signal system comprise: once according to this at least one transmission quality parameter of use Determines of this input equipment, immediately the frame per second used when encoding this video signal source is adjusted to this at least one transmission quality parameter this frame per second comprised。
12. the method for claim 1, it is characterized in that, judge the step of the use state of this input equipment of this electronic installation, according to the step using this at least one transmission quality parameter of Determines of this input equipment, and become the step of this transmission video signal for periodically carrying out this video signal source code according to this at least one transmission quality parameter。
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