CN103108169A - Mobile terminal which display video frame rate in real time and achieving method thereof - Google Patents
Mobile terminal which display video frame rate in real time and achieving method thereof Download PDFInfo
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- CN103108169A CN103108169A CN2013100615410A CN201310061541A CN103108169A CN 103108169 A CN103108169 A CN 103108169A CN 2013100615410 A CN2013100615410 A CN 2013100615410A CN 201310061541 A CN201310061541 A CN 201310061541A CN 103108169 A CN103108169 A CN 103108169A
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Abstract
The invention discloses a mobile terminal which display a video frame rate in real time and an achieving method of the mobile terminal . The mobile terminal comprises a base band chip, a camera module and a display screen. The camera module and the display screen are in signal connection with the base band chip. The base band chip comprises a frame rate obtaining module. The camera module comprises a lens and an optical sensing module. The lens is used for shooting a video frame image and transmits the image to the optical sensing module. The optical sensing module automatically adjusts, controls and outputs the video frame image according to environment to the frame rate obtaining module. The frame rate obtaining module calculates the frame rate of the video frame image and outputs the frame rate to the display screen for real-time display. The mobile terminal which displays the video frame rate in real time and the achieving method of the mobile terminal can display frame rates of functions such as previewing, shooting and recording in real time and provide technology reference when a professional user uses a mobile terminal camera.
Description
Technical field
The present invention relates to mobile communication terminal, relate in particular to mobile terminal and its implementation of a kind of real-time display video frame per second.
Background technology
At present, extensive use in mobile terminal of camera, mobile terminals such as panel computer, mobile phone all possesses camera function, along with the development of technology, the optical pickocff of a lot of cameras can be adjusted the frame per second of output video image automatically according to external environment, for example, under the more sufficient environment of light, optical pickocff is controlled the higher image of output video frame per second, and under the darker environment of light, optical pickocff can be controlled again the lower image of output video frame per second.The prior art camera has possessed the ability of automatically adjusting the output video frame per second according to environment on hardware condition, but the user can not be from direct feel on display screen to the video frame rate of exporting.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the present invention proposes a kind of for addressing the deficiencies of the prior art and deficiency.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of mobile terminal of real-time display video frame per second, described mobile terminal comprises baseband chip, camera module and display screen, described camera module, display screen all are connected with the baseband chip signal; Described baseband chip comprises the frame per second acquisition module, and described camera module comprises camera lens and optical sensing module; Described camera lens is used for obtaining video frame images and being transferred to the optical sensing module, described optical sensing module is automatically adjusted according to environment and is controlled and pass through data transmission interface output video two field picture to described frame per second acquisition module, and described frame per second acquisition module calculates the frame per second of video frame images and outputs to display screen and shows in real time.
Described optical sensing module comprises optical pickocff and graphics processing unit, the video frame images that the described camera lens of described optical pickocff induction obtains also is transferred to graphics processing unit with it, and described graphics processing unit is transferred to frame per second acquisition module in described baseband chip by data transmission interface after with the video frame images digitlization.
Described frame per second acquisition module is according to the time interval between two two field pictures of two field picture calculating of data transmission interface input in described camera module, draw the transmission time of each video frame images, then the frame image data that calculates per second transmission outputs to display screen and shows in real time.
Described mobile terminal is mobile phone, panel computer or PDA.
The present invention also provides the implementation method of the real-time display video frame per second of a kind of mobile terminal, realizes based on above-mentioned mobile terminal, comprises the steps:
A. open mobile terminal about the application of camera;
B. described camera lens obtains video frame images and is transferred to the optical sensing module, and described optical sensing module is automatically adjusted according to environment and controlled and pass through data transmission interface output video two field picture to described frame per second acquisition module;
C. described frame per second acquisition module obtains the video frame images of camera module, and the time interval between calculating two adjacent video frames image is to obtain the transmission time of each video frame images;
D. described frame per second acquisition module calculates the number of image frames of per second transmission and outputs to display screen according to transmission time of each video frame images and shows in real time.
Step B specifically comprises: described optical sensing module is provided with optical pickocff, graphics processing unit and data transmission interface, the video frame images that the described camera lens of described optical pickocff induction obtains also is transferred to graphics processing unit with it, and described graphics processing unit is transferred to frame per second acquisition module in described baseband chip by data transmission interface after with the video frame images digitlization.
Step C specifically comprises: the two field picture by described data transmission interface calculates time interval between two two field pictures, the transmission time that draws each video frame images to described frame per second acquisition module according to described graphics processing unit.
Described mobile terminal is mobile phone, panel computer or PDA.
Compared with prior art, the present invention obtains the video frame images of mobile terminal by camera lens, when obtaining each frame video frame images, it is controlled the output frame image to the frame per second acquisition module of baseband chip by optical pickocff, calculated the transmission time of each two field picture by the frame per second acquisition module, then the transmission time according to each frame transmitting image calculates the number of image frames of transmitting each second, it is frame per second, be shown on display screen, the frame per second of the functions such as the present invention possesses real-time demonstration preview, takes pictures, video recording provides Technical Reference when using camera for the user.In addition, can write each two field picture to frame per second information when video recording, frame per second can be presented on display screen when playing this video, remove the computing cost of player calculating frame per second from.
Description of drawings
Fig. 1 is the structural principle block diagram of the mobile terminal of a kind of real-time display video frame per second of the present invention.
Fig. 2 is the syndeton schematic diagram of baseband chip and camera module in Fig. 1.
Fig. 3 is the pin annexation figure of baseband chip and camera module in the mobile terminal of the real-time display video frame per second of the present invention.
Fig. 4 is the flow chart of the implementation method of the real-time display video frame per second of a kind of mobile terminal of the present invention.
Fig. 5 is the sequential chart of a certain frame image signal of camera module output in the implementation method of the real-time display video frame per second of a kind of mobile terminal of the present invention, and a certain frame image data and display screen matrix graph of a relation.
Fig. 6 is the sequential chart of camera module continuous wave output frame image signal in the implementation method of the real-time display video frame per second of a kind of mobile terminal of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
for most mobile phone users, when using camera to use, can not intuitively see the frame per second that shows up till now image from display screen, this needs to use the image frame per second for part is very inconvenient for the user who uses, the invention provides mobile terminal and its implementation of a kind of real-time display video frame per second, the image frame per second that camera can be obtained is presented on display screen in real time, for providing convenience according to the user that the image frame per second is used, the mobile terminal of indication of the present invention has included but not limited to use the mobile phone of camera, panel computer, the mobile terminals such as PDA.
As shown in Figure 1 to Figure 3, Fig. 1 shows the structural principle block diagram of the mobile terminal of a kind of real-time display video frame per second of the present invention, this mobile terminal comprises baseband chip 10, camera module 20 and display screen 30, baseband chip 10 is electrically connected to respectively with camera module 20, display screen 30 and carries out the signal transmission, wherein, two-way signaling transmission between baseband chip 10 and camera module 20.Shown in Figure 2 is the syndeton schematic diagram of baseband chip and camera module in Fig. 1, this baseband chip 10 comprises frame per second acquisition module 11, this camera module 20 comprises camera lens 21, optical sensing module 22 and data transmission interface 23, wherein, optical sensing module 22 comprises optical pickocff 221 and graphics processing unit 222.
Fig. 3 shows the pin annexation of baseband chip and camera module in the mobile terminal of the real-time display video frame per second of the present invention, and camera module 20 comprises PIXCLK, DOUT[7:0], FRAME_VALID, the LINE_VALID pin, baseband chip 10 comprises CAMDCK, CAMD[7:0], CAMVS, the CAMHS pin, PIXCLK, DOUT[7:0], FRAME_VALID, LINE_VALID pin and CAMDCK, CAMD[7:0], CAMVS, the CAMHS pin connects respectively one by one, and wherein PIXCLK is the two field picture clock frequency signal of camera module output, and CAMDCK is the two field picture clock frequency signal of baseband chip, DOUT[7:0], CAMD[7:0] be respectively the camera module, the frame image data signal output of baseband chip, frame image data signal input pin, FRAME_VALID is effective clock signal of a two field picture of camera module output, CAMVS is the clock signal pin that baseband chip receives a two field picture, LINE_VALID is effective clock signal pin of delegation's picture signal in a two field picture of camera module output, and CAMHS receives the clock signal pin of delegation's picture signal in the two field picture that the camera module exports for baseband chip.The frame image data that the data transmission interface 23 of frame per second acquisition module 11 by camera module 20 transmits and clock signal calculate the time interval between two two field pictures, can calculate the transmission time of a frame video image according to this time interval, and then can calculate the quantity of per second display frame image, it is frame per second, again this frame per second is sent to display screen and realize real-time demonstration, for user's reference.
The invention provides the implementation method of the real-time display video frame per second of a kind of mobile terminal, realize based on above-mentioned mobile terminal, its hardware configuration is not given unnecessary details.Fig. 4 shows the performing step of the inventive method:
S100 opens mobile terminal about the application of camera;
S200, camera lens obtain video frame images and are transferred to the optical sensing module, and the optical sensing module is automatically adjusted according to environment and controlled and pass through data transmission interface output video two field picture to the frame per second acquisition module.Particularly, the optical sensing module is provided with optical pickocff, graphics processing unit and data transmission interface, the video frame images that optical pickocff induction camera lens obtains also is transferred to graphics processing unit with it, and graphics processing unit is transferred to frame per second acquisition module in baseband chip by data transmission interface after with the video frame images digitlization.
S300, the frame per second acquisition module obtains the video frame images of camera module, and the time interval between calculating two adjacent video frames image is to obtain the transmission time of each video frame images.Particularly, the two field picture by data transmission interface calculates time interval between two two field pictures, the transmission time that draws each video frame images to the frame per second acquisition module according to graphics processing unit.
S400, frame per second acquisition module calculate the number of image frames of per second transmission and output to display screen according to transmission time of each video frame images and show in real time.
The below is horizontal 480 pixels take the image resolution ratio of camera module 20 output as 640 * 480 pixel PX(, vertical 640 pixels), be also that the output resolution ratio of display screen further illustrates the implementation procedure of said method as example.
Should be understood that; the above is only preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection range of claims of the present invention.
Claims (8)
1. the mobile terminal of a real-time display video frame per second, is characterized in that, described mobile terminal comprises baseband chip, camera module and display screen, and described camera module, display screen all are connected with the baseband chip signal; Described baseband chip comprises the frame per second acquisition module, and described camera module comprises camera lens, optical sensing module and data transmission interface; Described camera lens is used for obtaining video frame images and being transferred to the optical sensing module, described optical sensing module is automatically adjusted according to environment and is controlled and pass through data transmission interface output video two field picture to described frame per second acquisition module, and described frame per second acquisition module calculates the frame per second of video frame images and outputs to display screen and shows in real time.
2. the mobile terminal of real-time display video frame per second according to claim 1, it is characterized in that, described optical sensing module comprises optical pickocff and graphics processing unit, the video frame images that the described camera lens of described optical pickocff induction obtains also is transferred to graphics processing unit with it, and described graphics processing unit is transferred to frame per second acquisition module in described baseband chip by data transmission interface after with the video frame images digitlization.
3. the mobile terminal of real-time display video frame per second according to claim 2, it is characterized in that, described frame per second acquisition module is according to the time interval between two two field pictures of two field picture calculating of data transmission interface input in described camera module, draw the transmission time of each video frame images, then the frame image data that calculates per second transmission outputs to display screen and shows in real time.
4. the mobile terminal of the described real-time display video frame per second of according to claim 1 to 3 any one, is characterized in that, described mobile terminal is mobile phone, panel computer or PDA.
5. the implementation method of the real-time display video frame per second of mobile terminal, is characterized in that, based on mobile terminal claimed in claim 1, comprises the steps:
A. open mobile terminal about the application of camera;
B. described camera lens obtains video frame images and is transferred to the optical sensing module, and described optical sensing module is automatically adjusted according to environment and controlled and pass through data transmission interface output video two field picture to described frame per second acquisition module;
C. described frame per second acquisition module obtains the video frame images of camera module, and the time interval between calculating two adjacent video frames image is to obtain the transmission time of each video frame images;
D. described frame per second acquisition module calculates the number of image frames of per second transmission and outputs to display screen according to transmission time of each video frame images and shows in real time.
6. the implementation method of the real-time display video frame per second of mobile terminal according to claim 5, is characterized in that, step B specifically comprises:
Described optical sensing module is provided with optical pickocff, graphics processing unit and data transmission interface, the video frame images that the described camera lens of described optical pickocff induction obtains also is transferred to graphics processing unit with it, and described graphics processing unit is transferred to frame per second acquisition module in described baseband chip by data transmission interface after with the video frame images digitlization.
7. the implementation method of the real-time display video frame per second of mobile terminal according to claim 6, is characterized in that, step C specifically comprises:
Two field picture by described data transmission interface calculates time interval between two two field pictures, the transmission time that draws each video frame images to described frame per second acquisition module according to described graphics processing unit.
8. the implementation method of the real-time display video frame per second of the described mobile terminal of according to claim 5 to 7 any one, is characterized in that, described mobile terminal is mobile phone, panel computer or PDA.
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| CN104166614A (en) * | 2013-05-17 | 2014-11-26 | 腾讯科技（深圳）有限公司 | Frame rate detecting method for mobile device and related device |
| CN106970875A (en) * | 2017-03-01 | 2017-07-21 | 福建天晴数码有限公司 | The frame per second method of testing and its system of virtual reality software |
| CN108322737A (en) * | 2018-02-08 | 2018-07-24 | 广东欧珀移动通信有限公司 | Image frame per second measurement method and device |
| CN108600668A (en) * | 2018-03-27 | 2018-09-28 | 维沃移动通信有限公司 | A kind of record screen frame per second method of adjustment and mobile terminal |
| CN112748814A (en) * | 2019-10-29 | 2021-05-04 | 北京小米移动软件有限公司 | Ambient light detection method and device and terminal |
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| CN112748814A (en) * | 2019-10-29 | 2021-05-04 | 北京小米移动软件有限公司 | Ambient light detection method and device and terminal |
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