CN105760226B - A kind of method, device and mobile terminal of quick start mobile terminal camera - Google Patents
A kind of method, device and mobile terminal of quick start mobile terminal camera Download PDFInfo
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- CN105760226B CN105760226B CN201610069788.0A CN201610069788A CN105760226B CN 105760226 B CN105760226 B CN 105760226B CN 201610069788 A CN201610069788 A CN 201610069788A CN 105760226 B CN105760226 B CN 105760226B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5016—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals the resource being the memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
- G06F2209/50—Indexing scheme relating to G06F9/50
- G06F2209/5013—Request control
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Abstract
The invention discloses the method, device and mobile terminal of quick start mobile terminal camera.The method of quick start mobile terminal camera provided by the invention includes: to read the Memory Allocation information saved in specified file after receiving mobile terminal camera starting request；The memory headroom being directed toward in the Memory Allocation information is distributed into the camera and carries out image data caching.Utilize this method, it eliminates in camera starting, operation is configured to the image data of mobile terminal camera, i.e., eliminate every time receive camera starting request after, repeat the application and batch operation of the memory headroom of the image data for caching camera, thereby save 60ms~80ms be image data distribution and application memory headroom time, and then the starting of mobile terminal camera is accelerated, reduce the time-consuming of camera starting.
Description
Technical field
The present embodiments relate to technical field of mobile terminals more particularly to a kind of sides of quick start mobile terminal camera
Method, device and mobile terminal.
Background technique
Camera is a very important function in the mobile devices such as mobile phone, tablet computer, and for liking capturing beauty
For the user of good moment, the starting speed of camera is more very important.But the start-up course based on Current camera can be with
Find out, after receiving mobile terminal camera starting request, it is necessary first to the image data configuration of camera is carried out for camera, with
The image data application that is embodied as when camera is taken pictures simultaneously distributes corresponding spatial cache, then could start camera and enters and take pictures
Display interface take pictures and preview or to be taken pictures based on camera.
It in general, be the image data configuration that camera carries out camera include mainly preview for camera based on camera
Data and/or photographed data distribution for camera based on camera and apply for the memory headroom for caching above-mentioned image data.
In existing camera start-up course, in the image data configuration phase to mobile terminal camera, need to complete multiple be used for
The distribution and application operation of the memory headroom of caching image data, occupy the more time of camera starting, and existing camera
In starting, after being connected to mobile terminal camera starting request every time, require to carry out memory headroom for the image data of camera
Application and batch operation, which largely occupies the starting time of camera, so that entire camera start-up course
Expend more time.
Summary of the invention
The purpose of the present invention is to propose to a kind of method, device and mobile terminal of quick start mobile terminal camera, to
Solve the problems, such as that the camera starting time is long in mobile terminal.
On the one hand, the embodiment of the invention provides a kind of methods of quick start mobile terminal camera, comprising:
After receiving mobile terminal camera starting request, the Memory Allocation information saved in specified file is read；
The memory headroom being directed toward in the Memory Allocation information is distributed into the camera and carries out image data caching.
On the other hand, the embodiment of the invention provides a kind of devices of quick start mobile terminal camera, comprising:
Information reading module, for being saved in reading specified file after receiving mobile terminal camera starting request
Memory Allocation information；
Memory allocating module is carried out for the memory headroom being directed toward in the Memory Allocation information to be distributed to the camera
Image data caching.
Another aspect, the embodiment of the invention provides a kind of mobile terminal, which is integrated with the embodiment of the present invention
A kind of device of the quick start mobile terminal camera provided
The embodiment of the invention provides the method, device and mobile terminal of quick start mobile terminal camera, the present invention is mentioned
The method of the quick start mobile terminal camera of confession can be summarized as: on receiving mobile terminal after the starting request of camera, read
Take the Memory Allocation information saved in specified file；And the memory headroom being directed toward in Memory Allocation information is distributed into camera and is carried out
The caching of camera image data.Using this method, eliminate in camera starting, to the image data of mobile terminal camera
Configuration operation, that is, eliminate every time receive camera starting request after, repeat the image data for caching camera
Memory headroom application operation, thereby save 60ms~80ms be image data distribution and application memory headroom when
Between, and then the starting of mobile terminal camera is accelerated, reduce the time-consuming of camera starting, improves user to the use of mobile terminal
Family experience.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the method for quick start mobile terminal camera that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the method for quick start mobile terminal camera provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram of the method for quick start mobile terminal camera that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural block diagram of the device for quick start mobile terminal camera that the embodiment of the present invention four provides；
Fig. 5 is a kind of structural block diagram of the device for quick start mobile terminal camera that the embodiment of the present invention five provides.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the present invention rather than limiting the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing rather than entire infrastructure.
It typically, for the start-up course of mobile terminal camera, generally speaking specifically can be summarized as: clicking camera in user
After camera starting shortcut key set by icon or click, phase chance, which gives an order, open the operation of camera to camera bottom
(primary operational that the operation is camera starting).Operation for opening camera can be divided into three steps again and carry out, first is that camera shooting
Head carries out the initial work such as powering on；Another is the application and distribution that memory headroom is carried out to the output of the image data of camera
Operation is realized and is configured to the image data of camera；Another is to wait camera output image preview data, shows camera
Interface of taking pictures.Wherein it is possible to understand, the three steps operation for opening camera is that sequence carries out.Illustratively, it is assumed that phase
The starting time of machine is 500ms, then in the operation for opening camera, the first step carries out camera the initial work such as to power on
Time-consuming may be 150ms~200ms, carry out the time-consuming of memory headroom application and distribution in second step to the image data of camera
It may be 60ms~80ms, it may also be 150ms~200ms that the time-consuming of camera output image preview data is waited in third step
(there are also the startings of some hardware performances in camera start-up course, therefore also expend some starting times).
The start-up course of camera is analyzed, under normal circumstances, removes the influence that starts to camera of hardware performance, it is existing on software
Be difficult fundamentally to reduce in technology camera bottom to camera power on etc. initial works and camera image data configuration and
Time-consuming ratio of the camera output data in entire camera start-up course is waited, because camera bottom has to etc. to receive camera and open
It just gives an order after dynamic request and just removes to complete camera and initial works and camera image data configuration and the waiting camera such as power on
The work of output data, and then realize the start-up operation of camera.Therefore, it is mobile to propose a kind of quick start for the embodiment of the present invention
The method of terminal camera, the thought to reduce image data setup time (i.e. shortening memory headroom application and distribution time) are come fast
Speed starting mobile terminal camera.
It should be noted that the embodiment of the present invention only in camera start-up course to the image data application of camera and point
Development with memory headroom is described, no longer other operating procedures of the camera in detailed description camera start-up course, because
To carry out memory headroom application to the image data to camera based on the embodiment of the present invention and distributing carried out improvement step
Description, in conjunction with other operations in existing camera start-up course, those skilled in the art be may be implemented to mobile terminal phase
The quick start of machine.
Embodiment one
Fig. 1 is a kind of flow diagram of the method for quick start mobile terminal camera that the embodiment of the present invention one provides.
This method the case where camera starting, can be executed suitable for mobile terminal by the device of quick start mobile terminal camera,
Wherein the device can be implemented by software and/or hardware, and generally be integrated in mobile terminal.
Specifically, as shown in Figure 1, the embodiment of the present invention one provide a kind of quick start mobile terminal camera method,
Including operating as follows:
Step S101, after receiving mobile terminal camera starting request, the Memory Allocation saved in specified file is read
Information.
Step S102, the memory headroom being directed toward in the Memory Allocation information is distributed into the camera and carries out image data
Caching.
In the aforesaid operations step of the present embodiment, the mobile terminal is that mobile phone, tablet computer etc. are provided with camera
Electronic equipment with camera function of taking pictures.The process for receiving mobile terminal camera starting request, can be briefly described are as follows:
User on mobile terminal camera icon or other quickly starting camera icons carried out trigger action, thus form camera
Starting request.
In the present embodiment, after receiving mobile terminal camera starting request, the figure for camera can be directly read
As the Memory Allocation information of data buffer storage.Correspondingly, the Memory Allocation information preservation is in specified file, the specified file
To be arranged in advance for saving the file of Memory Allocation information.It further, mainly include interior in the Memory Allocation information
Address is deposited, the memory address can be directed toward the memory headroom of the image data for caching the camera, thus no longer need
Repeat memory application, the image data of camera camera can be directly completed by memory headroom pointed by memory address
Memory headroom distribution.It should be noted that the memory address for including in the Memory Allocation information can be for one or more
A, memory address number is corresponding with the image data number for needing to cache, that is, an image data for needing to cache is corresponding
One memory address, and since memory address is directed toward memory headroom, so being realized easily as image data storage allocation address
Operation.
Generally, when camera starts, it is often necessary to for the image data storage allocation space more than 10, these images
Data are typically used for process or frame during configuration image signal process (Image Signal Processing, ISP)
Frame, or for starting camera output image preview data.
Further, described image data include: that preview data and/or camera of the camera based on camera are based on camera
Photographed data.
In the present embodiment, described image data can be summarized as two kinds, the preview data one is camera based on camera,
The preview data is specific it is understood that after entering camera display interface after camera starts, and user is in mobile terminal screen
The image data information obtained based on camera arrived, these preview datas can be with the movement of camera and in mobile terminal screen
Up conversion；Another kind is the photographed data based on camera, and the photographed data is specific it is understood that entering phase after camera starting
After machine display interface, user obtain desired preview data through camera and click the picture number obtained after shooting button it is believed that
Breath, these image datas can finally store in the corresponding photo or video file folder of mobile terminal.
The method that the present invention implements a kind of quick start mobile terminal camera that one provides, the phase on receiving mobile terminal
After the starting request of machine, the Memory Allocation information saved in specified file is read；And the memory that will be directed toward in Memory Allocation information
Distribute to the caching that camera carries out camera image data in space.Using this method, eliminates and receiving camera starting every time
After request, repeat the memory headroom of the image data for caching camera application operation, thereby save 60ms~
80ms is the time of image data application memory headroom, and then accelerates the starting of mobile terminal camera, reduces camera and opens
Dynamic time-consuming improves user to the user experience of mobile terminal.
Embodiment two
Fig. 2 is a kind of flow diagram of the method for quick start mobile terminal camera provided by Embodiment 2 of the present invention.
The embodiment of the present invention two is based on above-described embodiment, further, step " is being received mobile terminal camera starting request
Afterwards, the Memory Allocation information saved in specified file is read " specifically optimization are as follows: after the request for receiving camera starting, detection
Whether the content stored in the specified file is empty；If the content stored in the specified file is not sky, institute is read
State the Memory Allocation information stored in specified file.In addition, also advanced optimizing and including: in the request for receiving camera starting
Afterwards, it detects after whether the content stored in the specified file be sky, if the content of specified file storage is sky,
The application distribution of memory headroom is carried out for the image data of the mobile terminal camera.
Further, if the content in specified file storage is sky, for the mobile terminal camera
Image data carry out memory headroom application distribution after, further includes: retain applied be used for cache described image number
According to memory headroom, and the corresponding memory address of the memory headroom is saved to the specified file, as described image number
According to Memory Allocation information.
As shown in Fig. 2, a kind of method of quick start mobile terminal camera provided by Embodiment 2 of the present invention, specifically includes
Following operation:
Step S201, the request of camera starting is received.
In the present embodiment, after user triggers camera icon or camera quick key on mobile terminal, it can produce camera
The request of starting.
Step S202, determine whether the content stored in the specified file is sky, if it is not, only carrying out step S203；If
It is to then follow the steps S204.
In the present embodiment, the specified file is to be arranged in advance for storing the file of Memory Allocation information.It is passing through
After crossing the request of step S201, can determine whether the content in the specified file is sky based on step S202, if not empty,
Step S203 then can be performed；Otherwise, step S204 can be performed.
Step S203, the Memory Allocation information stored in the specified file is read, wherein in the Memory Allocation information
Image data of the memory headroom of direction for the camera caches.
In the present embodiment, when the content for determining the specified file is not sky, it is known that in the specified file
Storage is had Memory Allocation information, then the Memory Allocation information can be directly read, in based on including in the Memory Allocation information
It deposits address and obtains the memory headroom for being used for caching image data.Based on the step, to image data when can save camera starting
Carry out the time spent by the operation of memory headroom application and distribution, can thus be camera starting whole process save 60ms~
The time-consuming of 70ms.
Step S204, the application distribution of memory headroom is carried out for the image data of the mobile terminal camera.
In the present embodiment, when the content for determining the specified file (is usually opened to mobile terminal execution for sky
After machine operation, before starting camera for the first time, after the static vector table of setting one is as specified file, the initial specified file is sky)
When, the application batch operation of memory headroom can be carried out for the image data of mobile terminal camera.
Further, the image data for the mobile terminal camera carries out the application distribution of memory headroom, packet
It includes:
Obtain the corresponding pixel size of the mobile terminal camera；According to the pixel size, determines and taken the photograph described in caching
The memory size as needed for the image data of head；Based on the memory size, it is the application of described image data and distributes corresponding
Memory headroom.
In the present embodiment, the application batch operation of memory headroom is carried out in the image data to mobile terminal camera
When, (generally, the Pixel Information of the camera can lead to the pixel size information of the mobile terminal camera available first
The configuration information for crossing inquiry mobile terminal obtains, which is typically maintained in the setting options of mobile terminal)；Then,
After getting the pixel size information of camera, so that it may determine the image data when institute of caching camera based on the pixel size
(generally, memory size is exactly the size of storage pixel unit needed for the camera to the memory size needed, illustratively, right
As soon as being required to store when caching the image data of the camera in the mobile terminal camera for possessing 1,300,000 pixels
Size of data is the memory of 4208*3120)；Finally, after getting memory size required for caching described image data, just
It needs to be the application of described image data and the corresponding memory headroom of distribution based on fixed memory size.This completes be used for
The memory headroom application and batch operation of the image data of camera.
Step S205, retain the memory headroom for being used to cache described image data applied, and the memory is empty
Between corresponding memory address save to the specified file, the Memory Allocation information as described image data.
In the present embodiment, after completing the application and distribution to image data memory space based on step S204, in order to
It is not repeated to carry out the application operation of memory headroom when being again started up mobile terminal camera later, it may be considered that will directly apply
Good memory headroom is retained, directly using the memory headroom currently applied when starting in order to next camera.Accordingly
, if only retained the space applied, in the starting of next camera, camera bottom is not aware which memory is empty
Between be for carry out image data caching retained, so also need to be arranged one include memory address index file so that
Camera bottom can be found quickly based on the index file for memory headroom corresponding to caching image data.
Specifically, above-mentioned the mentioned index file comprising memory address is equivalent to the specified text mentioned in step S205
Part, that is, the corresponding memory address of the allocated memory headroom is stored in the specified file, forms the text that can be indexed
Part, wherein the memory address information saved just can be the Memory Allocation information of camera bottom needs.Based on right in embodiment one
The description of Memory Allocation information, be used for index memory address not only one, can have multiple, the number of memory address
The quantity for the image data that amount is mainly cached according to needs.In addition, in order to ensure the Memory Allocation information that has saved is not with camera
Exiting and disappearing for application, needs when above-mentioned specified file is arranged, and a static vector table is set to, since static state is sweared
Scale does not disappear with exiting for camera applications, ensure that the Memory Allocation information will not with exiting for camera applications and
It disappears.
A kind of method of quick start mobile terminal camera provided by Embodiment 2 of the present invention, further embodies to take the photograph
As the process of head image data acquisition memory headroom, first after receiving camera starting request, can determine to give directions in file
It is interior it is calm whether be it is empty, the Memory Allocation information in specified file can be directly based upon when being not empty and is carried out in image data corresponds to
Deposit the determination in space；When for sky, it is necessary to carry out the application batch operation of memory headroom for image data, will also retain later
The memory headroom applied is with being again started up for camera.Using this method, eliminates and receiving camera starting every time
After request, repeat the memory headroom of the image data for caching camera application operation, thereby save 60ms~
80ms is the time of image data distribution and application memory headroom, and then accelerates the starting of mobile terminal camera.
Embodiment three
Fig. 3 is a kind of flow diagram of the method for quick start mobile terminal camera provided in an embodiment of the present invention.This
Inventive embodiments three are based on above-described embodiment, in the present embodiment, before receiving mobile terminal camera starting request,
Further include: when the specified file is not present, the static vector table of setting one initializes the finger as the specified file
File is determined for sky, to store the Memory Allocation information.
In addition, the embodiment of the present invention two still further preferably includes: when detect to mobile terminal execution shut down or again
When opening operation, release deletes the specified file for caching the memory headroom of described image data.
As shown in figure 3, a kind of method for quick start mobile terminal camera that the embodiment of the present invention three provides, specifically includes
Following operation:
Step S301, when the specified file is not present, a static vector table is set as the specified file, and just
The beginningization specified file is sky, to store the Memory Allocation information.
In the present embodiment, step S301 gives the specific opportunity of setting specified file, it is preferable that can receive phase
Before machine starting request, and there is no when the specified file, the static vector table of creation one is as specified file.And it is somebody's turn to do in creation
When static vector table, carry out the static state vector table to be initialized as sky, in order to subsequent operation.
Step S302, the request of camera starting is received.
Step S303, determine whether the content stored in the specified file is sky, if it is not, only carrying out step S304；If
It is to then follow the steps S305.
Step S304, the Memory Allocation information stored in the specified file is read, wherein in the Memory Allocation information
Image data of the memory headroom of direction for the camera caches.
Step S305, the application distribution of memory headroom is carried out for the image data of the mobile terminal camera.
Step S306, retain the memory headroom for being used to cache described image data applied, and the memory is empty
Between corresponding memory address save to the specified file, the Memory Allocation information as described image data.
In the present embodiment, step S302~step S306 operation will not be described in more detail, can refer in embodiment two
To the specific descriptions of above-mentioned steps.
Step S307, it when detecting to mobile terminal execution shutdown or reboot operation, discharges for caching described image
The memory headroom of data, and delete the specified file.
In the present embodiment, the memory size as possessed by mobile terminal is limited, due to mobile terminal camera work
It is very big for caching the memory headroom of the image data of camera when making, if still maintain always by upper after camera applications exit
The memory headroom for stating step acquisition, it will cause the excessive occupancy of mobile terminal memory headroom resource, prevent mobile terminal from
Corresponding memory headroom effectively is distributed for other function application, and then is likely to decrease mobile terminal to other applications
The speed of response.Therefore, the embodiment of the present invention is defined the release opportunity of the memory headroom, that is, when detecting to shifting
When dynamic terminal has carried out shutdown or reboot operation, so that it may memory headroom needed for discharging camera caching described image data；And
And after discharging the memory headroom, delete the specified file accordingly, to avoid when starting again to camera because not having
Have and deletes specified file and generate unnecessary mistake.
A kind of method for quick start mobile terminal camera that the embodiment of the present invention three provides, has advanced optimized specified text
The setting condition of part and the deletion condition of specified file allow specified file to store the memory point for camera starting
With information, the distribution time of memory headroom needed for image data when thus reducing camera starting, so that the starting time of camera contracts
Short 60ms~70ms；Meanwhile the deletion condition based on specified file can also discharge retained memory headroom, and delete institute
The Memory Allocation information of storage, it is possible thereby to the release of mobile terminal memory headroom be realized, to avoid the mistake of mobile terminal memory
Divide and occupies.
Example IV
Fig. 4 is a kind of structural block diagram of the device for quick start mobile terminal camera that the embodiment of the present invention four provides.It should
Device can be implemented by software and/or hardware, and suitable for mobile terminal the case where camera quick start, and generally be integrated in shifting
In dynamic terminal.As shown in figure 4, the specific structure of the device is as follows, comprising: information reading module 41 and memory allocating module 42.
Wherein,
Information reading module 41, for reading in specified file and saving after receiving mobile terminal camera starting request
Memory Allocation information.
Memory allocating module 42, for by the memory headroom being directed toward in the Memory Allocation information distribute to the camera into
Row image data caching.
In the present embodiment, which can be read by information reading module 41 after receiving camera starting request
The Memory Allocation information saved in specified file, and it is slow for the image data of camera to complete by memory allocating module 42
The distribution for the memory headroom deposited.
Further, the information reading module 41, is specifically used for:
After the request for receiving camera starting, detect whether the content stored in the specified file is empty；
If the content stored in the specified file is not sky, the Memory Allocation stored in the specified file is obtained
Information.
Further, described image data include: that preview data and/or camera of the camera based on camera are based on camera
Photographed data.
A kind of device for quick start mobile terminal camera that the embodiment of the present invention four provides is asked receiving camera starting
After asking, the mistake for repeating application and the batch operation of the memory headroom of the image data for caching camera can be saved
Journey therefore saves on 60ms~80ms and is the time of image data distribution and application memory headroom, and then accelerates mobile terminal
The starting of camera reduces the time-consuming of camera starting, improves user to the user experience of mobile terminal.
Embodiment five
Fig. 5 is a kind of structural block diagram of the device for quick start mobile terminal camera that the embodiment of the present invention five provides.This
Inventive embodiments five are optimized based on above-mentioned example IV, and in the present embodiment, it includes information that the structure of the device, which is removed,
It outside read module 51 and memory allocating module 52, also specifically includes: specified file setup module 50, memory headroom application module
53, information preservation module 54 and space release module 55 are distributed.Wherein,
Specified file setup module 50, for before receiving mobile terminal camera starting request, when there is no described
When specified file, the static vector table of setting one initializes the specified file for sky, to store as the specified file
State Memory Allocation information.
Memory headroom application module 53, for detecting and being stored in the specified file in the request for receiving camera starting
Content whether be sky after, be the image of the mobile terminal camera when the content of specified file storage is empty
Data carry out the application distribution of memory headroom；
Correspondingly, the image data for the mobile terminal camera carries out the application distribution of memory headroom, comprising:
Obtain the corresponding pixel size of the mobile terminal camera；According to the pixel size, the figure for caching the camera is determined
The memory size as needed for data；Based on the memory size, for the application of described image data and corresponding memory headroom is distributed.
Information preservation module 54 is distributed, is the mobile terminal for being sky when the content of specified file storage
Camera distributes after the memory headroom of caching image data, retains the memory for being used to cache described image data applied
Space, and the corresponding memory address of the memory headroom is saved to the memory to the specified file, as described image data
Distribute information.
Space release module 55, for discharging for delaying when detecting to mobile terminal execution shutdown or reboot operation
The memory headroom of described image data is deposited, and deletes the specified file.
In the present embodiment, mobile terminal phase can received by specified file setup module 50 first based on the device
Before machine starting request, when the specified file is not present, a static vector table is set as the specified file, and initial
Change the specified file for sky, to store the Memory Allocation information for obtaining image data spatial cache；Then, letter can be passed through
For breath read module 51 after receiving mobile terminal camera starting request, it is empty for detecting the content stored in the specified file not
When, read the Memory Allocation information saved in specified file；Movement is either being received by memory headroom application module 53
It is the mobile terminal camera when to detect the content stored in the specified file be empty after terminal camera starting request
Image data carries out the application distribution of memory headroom；And by distribution information preservation module 54 by it is allocated be used to cache it is described
The memory headroom of image data is retained, and the corresponding memory address of the memory headroom is saved to the specified file,
Memory Allocation information as described image data；Finally, it can also detected by space release module 55 to mobile terminal
When executing shutdown or reboot operation, release deletes the specified file for caching the memory headroom of described image data.
A kind of device of quick start mobile terminal camera provided by the invention further increases specified file setting mould
Block, memory headroom application module, distribution information preservation module and space release module.Enable the device of the embodiment of the present invention
It is determined as that the image data of camera carries out the opportunity of memory application and distribution, while can also determines retained memory headroom
Release opportunity.Using the device, the distribution time of memory headroom needed for image data, makes when can not only save camera starting
The starting time for obtaining camera shortens 60ms~70ms and achievees the effect that quick start camera；Simultaneously, it is thus also avoided that mobile terminal
The excessive occupancy of memory.
Further, a kind of mobile terminal that the embodiment of the present invention five also provides, the mobile terminal are integrated with of the invention real
Apply the device for any quick start mobile terminal camera that example four or embodiment five provide.Using the mobile terminal, work as user
When clicking camera icon or camera quick key, compared with existing mobile terminal, the starting time of 60ms~70ms can be shortened, reached
The effect of quick start mobile terminal camera has been arrived, has thus further improved user to the experience effect of mobile terminal.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of method of quick start mobile terminal camera characterized by comprising
After receiving mobile terminal camera starting request, the Memory Allocation information saved in specified file is read；
After the request for receiving camera starting, detect whether the content stored in the specified file is empty；
If the content of the specified file storage is sky, memory sky is carried out for the image data of the mobile terminal camera
Between application distribution；
The image data for the mobile terminal camera carries out the application distribution of memory headroom, comprising:
Obtain the corresponding pixel size of the mobile terminal camera；
According to the pixel size, memory size needed for determining the image data for caching the camera；
Based on the memory size, for the application of described image data and corresponding memory headroom is distributed；
If the content stored in the specified file is not sky, the Memory Allocation letter stored in the specified file is read
Breath；
The memory headroom being directed toward in the Memory Allocation information is distributed into the camera and carries out image data caching.
2. if the method according to claim 1, wherein the content in specified file storage is
Sky, then after the application distribution for carrying out memory headroom for the image data of the mobile terminal camera, further includes:
Retain applied for caching the memory headrooms of described image data, and by the corresponding memory address of the memory headroom
Save the Memory Allocation information to the specified file, as described image data.
3. method according to claim 1 to 2, which is characterized in that it is described receive mobile terminal camera starting ask
Before asking, further includes:
When the specified file is not present, the static vector table of setting one initializes described specified as the specified file
File is sky, to store the Memory Allocation information.
4. method according to claim 1 to 2, which is characterized in that further include:
When detecting to mobile terminal execution shutdown or reboot operation, the memory discharged for caching described image data is empty
Between, and delete the specified file.
5. according to the method described in claim 4, it is characterized in that, described image data include: camera based on the pre- of camera
Look at the photographed data of data and/or camera based on camera.
6. a kind of device of quick start mobile terminal camera characterized by comprising
Information reading module, for reading the memory saved in specified file after receiving mobile terminal camera starting request
Distribute information；
The information reading module, is specifically used for:
After the request for receiving camera starting, detect whether the content stored in the specified file is empty；
If the content stored in the specified file is not sky, the Memory Allocation letter stored in the specified file is obtained
Breath；
Memory headroom application module, for detecting the content stored in the specified file in the request for receiving camera starting
After whether being sky, when the content of specified file storage is empty, be the mobile terminal camera image data into
The application of row memory headroom distributes；
Correspondingly, the image data for the mobile terminal camera carries out the application distribution of memory headroom, comprising:
Obtain the corresponding pixel size of the mobile terminal camera；
According to the pixel size, memory size needed for determining the image data for caching the camera；
Based on the memory size, for the application of described image data and corresponding memory headroom is distributed；
Memory allocating module carries out image for the memory headroom being directed toward in the Memory Allocation information to be distributed to the camera
Data buffer storage.
7. device according to claim 6, which is characterized in that further include:
Information preservation module is distributed, is the mobile terminal camera for being sky when the content of specified file storage
It distributes after the memory headroom of caching image data, retains the memory headroom for being used to cache described image data applied,
And save the corresponding memory address of the memory headroom to the specified file, the Memory Allocation as described image data is believed
Breath.
8. according to any device of claim 6-7, which is characterized in that further include:
Specified file setup module, for receive mobile terminal camera starting request before, when be not present the specified text
When part, the static vector table of setting one initializes the specified file for sky, to store the memory as the specified file
Distribute information.
9. according to any device of claim 6-7, which is characterized in that further include:
Space release module, for when detecting to mobile terminal execution shutdown or reboot operation, release to be described for caching
The memory headroom of image data, and delete the specified file.
10. device according to claim 9, which is characterized in that described image data include: camera based on the pre- of camera
Look at the photographed data of data and/or camera based on camera.
11. a kind of mobile terminal, which is characterized in that the mobile terminal is integrated with quickly opening as described in claim 6-10 is any
The device of dynamic mobile terminal camera.
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| CN107465875A (en) * | 2017-09-13 | 2017-12-12 | 北京元心科技有限公司 | Camera preview data cache method and device |
| CN108710539B (en) * | 2018-05-18 | 2021-03-16 | 珠海格力电器股份有限公司 | Information processing method, terminal and readable storage medium |
| CN111447424B (en) * | 2020-04-10 | 2022-04-22 | 中航国画（上海）激光显示科技有限公司 | Projection system with safety enhancement function |
| CN112312023B (en) * | 2020-10-30 | 2022-04-08 | 北京小米移动软件有限公司 | Camera buffer queue allocation method and device, electronic equipment and storage medium |
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| CN103530186A (en) * | 2013-05-30 | 2014-01-22 | Tcl集团股份有限公司 | Method and system for achieving multi-position storage supported by camera application |
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