CN108073399A - Camera preview method, apparatus, mobile terminal and computer readable storage medium - Google Patents
Camera preview method, apparatus, mobile terminal and computer readable storage medium Download PDFInfo
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- CN108073399A CN108073399A CN201711464343.3A CN201711464343A CN108073399A CN 108073399 A CN108073399 A CN 108073399A CN 201711464343 A CN201711464343 A CN 201711464343A CN 108073399 A CN108073399 A CN 108073399A
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- display
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- preview data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/38—Creation or generation of source code for implementing user interfaces
Abstract
The invention discloses a kind of camera preview method, apparatus, mobile terminal and computer readable storage medium, which includes：Obtain the size of reference position and the preview data of the preview data on display interface；According to the reference position and the size, the display border of drafting preview after the preview data of completing；The preview data and the display border are shown on the display interface simultaneously, determine the type of abnormal problem by the display location of the preview data and the display border when appearance display exception.Technique according to the invention scheme, when preview shows abnormal, the problem of camera applications developer can quickly determine application layer or hardware abstraction layer problem.
Description
Technical field
It is whole in particular to a kind of camera preview method, apparatus, movement the present invention relates to camera applications development field
End and computer readable storage medium.
Background technology
Preview interface is often run into camera (Camera) application development process and shows that the situation for entanglement occur (such as is schemed
Situation shown in 1), when this happens, camera application program developer and HAL layers of (hardware abstraction layer) developer are
Can try every possible means the position that positioning is gone wrong, and application layer developer suspects that HAL layers of preview data itself is problematic, and causing should
It is shown and gone wrong with layer.And HAL layers of developer think that HAL layers of preview data has no problem, but do square in application layer
During battle array conversion (rotation, translation, scaling), result in preview data and be not plotted to mistake caused by predetermined position.
After there is this problem, application layer generally requires one frame one of initial data of HAL layers of developer's dump previews
Save as picture frame, then observe the picture that each frame preserves and whether occur unknown entanglement, this method cause it is less efficient, and
And result is not directly perceived enough after malfunctioning.
The content of the invention
In view of the above problems, the present invention provides a kind of simple and fast method, preview data dislocation hair is quickly located
Raw position, so as to solve the worry of programmer developer in exploitation.
According to embodiment of the present invention, a kind of camera preview method is provided, including：
Obtain the size of reference position and the preview data of the preview data on display interface；
According to the reference position and the size, the display of drafting preview after the preview data of completing
Border；
The preview data and the display border are shown on the display interface simultaneously, are led to when appearance display is abnormal
It crosses the preview data and the display location for showing border determines the type of abnormal problem.
In above-mentioned camera preview method, the size of the preview data is the wide and high of the preview data；
The display border is rectangle frame.
In above-mentioned camera preview method, diagonal is further included in the rectangle frame, and is showing the rectangle frame
While show the diagonal.
In above-mentioned camera preview method, further include：It receives user's open command and opens border display switch in advance, with
The preview data and the display border are shown on the display interface simultaneously.
In above-mentioned camera preview method, further include：The advance closure of border display switch of user's out code is received, with
The preview data is only shown on the display interface；When the preview data shows abnormal, refer to receiving user and opening
The border display switch is opened after order, to show the preview data and the display side simultaneously on the display interface
Boundary.
In above-mentioned camera preview method, if the preview data and the display border are not explicitly shown normal position
It puts and the preview data and the display overlapping margins, then the type of the abnormal problem is application layer problem；It is if described
Preview data is not explicitly shown normal position and the display border and is shown in normal position, then the type of the abnormal problem
For hardware abstraction layer problem.
According to another implementation of the invention, a kind of camera preview device is provided, including：
Data acquisition module, for obtaining reference position and the preview data of the preview data on display interface
Size；
Drafting module according to the reference position and the size, is drawn pre- after the preview data of completing
The display border look at；
Abnormal determining module shows the preview data and the display border, when going out simultaneously on the display interface
Now show the type for determining abnormal problem during exception by the display location of the preview data and the display border.
In above-mentioned camera preview device, the size of the preview data is the wide and high of the preview data；
The display border is rectangle frame.
In above-mentioned camera preview device, diagonal is further included in the rectangle frame, and is showing the rectangle frame
While show the diagonal.
In above-mentioned camera preview device, switch module is further included：Side is opened in advance for receiving user's open command
Boundary's display switch on the display interface simultaneously show the preview data and the display border.
In above-mentioned camera preview device, switch module is further included：For receiving the advance closed edge of user's out code
Boundary's display switch, only to show the preview data on the display interface；When the preview data shows abnormal, receiving
The border display switch is opened after to user's open command, on the display interface simultaneously show the preview data and
The display border.
In above-mentioned camera preview device, if the preview data and the display border are not explicitly shown normal position
It puts and the preview data and the display overlapping margins, then the type of the abnormal problem is application layer problem；It is if described
Preview data is not explicitly shown normal position and the display border and is shown in normal position, then the type of the abnormal problem
For hardware abstraction layer problem.
Another embodiment according to the present invention provides a kind of mobile terminal, described including memory and processor
For memory for storing computer program, the processor runs the computer program so that the mobile terminal execution is above-mentioned
Camera preview method.
Yet another embodiment according to the present invention provides a kind of computer readable storage medium, is stored with above-mentioned
The computer program used in mobile terminal.
Technical scheme is applied to the process of program development, when drawing preview data, preview number of completing
According to rear, the boundary mapping of the picture of preview out and can be drawn into the diagonal of preview.It can very intuitively after going wrong
See the position of preview data.According to the preview data of drafting and the position on border, preview data dislocation can be quickly located and asked
The root occurred is inscribed, so as to solve worry of the developer in camera applications are developed.
Description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to attached drawing needed in the embodiment below
It singly introduces, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as to the present invention
The restriction of protection domain.
The schematic diagram of image preview exception when Fig. 1 shows camera applications exploitation.
Fig. 2 shows the structure diagram of mobile terminal provided in an embodiment of the present invention.
Fig. 3 shows the flow chart of one embodiment of the camera preview method of the present invention.
Schematic diagram when image preview is normal when Fig. 4 shows the camera applications exploitation of the embodiment of the present invention.
A kind of schematic diagram of image preview abnormal conditions when Fig. 5 shows the camera applications exploitation of the embodiment of the present invention.
The schematic diagram of another kind image preview abnormal conditions when Fig. 6 shows the camera applications exploitation of the embodiment of the present invention.
Fig. 7 shows the structure diagram of one embodiment of camera preview device of the present invention.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can configure to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Go out all other embodiments obtained on the premise of creative work, belong to the scope of protection of the invention.
Following each embodiments can be applied in mobile terminal as shown in Figure 2, and Fig. 2 shows the structure of the mobile terminal
Block diagram, the mobile terminal 100 include：Radio frequency (Radio Frequency, RF) circuit 110, memory 120, input unit 130,
Display unit 140, camera unit 150, voicefrequency circuit 160, Wireless Fidelity (wireless fidelity, WiFi) module 170,
The components such as processor 180 and power supply 190.Input unit 130 can include touch panel and other input equipments, and display is single
Member 140 can include display panel.It will be understood by those skilled in the art that 100 structure of mobile terminal shown in Figure 2 not structure
The restriction of paired mobile terminal can include either combining some components or different than illustrating more or fewer components
Component is arranged.Certainly the present invention is not limited to the exploitation of camera applications on mobile terminal, can also be applied on desktop computer etc.
In the exploitation of camera applications.
Embodiment 1
Fig. 3 shows the flow chart of one embodiment of the camera preview method of the present invention.
In step S310, the ruler of reference position and the preview data of the preview data on display interface is obtained
It is very little.
When proceeding by preview, obtain preview first needs reference position to be shown and preview data on interface
Size.The image that usual preview data is formed is rectangular profile, is illustrated below by taking preview rectangular image as an example, certainly,
The invention is not limited thereto, for example, the shapes such as preview image or circle, ellipse.
When the image that preview data is formed is rectangular profile, the reference position of display can be that preview data is normally shown
The upper left corner point, naturally it is also possible to be the point of such as upper right corner, the lower left corner, the lower right corner or other positions, and preview number
According to size be wide (w) and high (h).
In step s 320, according to the reference position and the size, painted after the preview data of completing
The display border of preview processed.
After preview data of completing, then draw the display border of preview.When preview figure is rectangular profile, preview
Border can be rectangle frame, you can be made of four lines.By taking reference position is in the upper left corner as an example, four line segments are respectively：Line
1 (x, y of section；X+w, y), line segment 2 (x+w, y；X+w, y+h), line segment 3 (x, y；X, y+h), line segment 4 (x, y+h；x+w,y+h).
As a preferred embodiment, diagonal preferably is further included in above-mentioned preview bounding rectangles frame, is also just said, except
Outside above-mentioned line segment, further include：Line segment 5 (x, y；X+w, y+h), line segment 6 (x+w, y；x,y+h).In step s 320, drawing
The diagonal in the rectangle display border and rectangle display border of preview is drawn after into the preview data.
In step S330, the preview data and the display border are shown simultaneously on the display interface, when going out
Now show the type for determining abnormal problem during exception by the display location of the preview data and the display border.
For example, in the case where rectangle frame is in display border, preview data and display side are shown simultaneously on display interface
Boundary, if preview data and square boundary, which are shown, is shown in normal position, and preview data is overlapped with square boundary, then for just
Often display.If preview data and square boundary are all not explicitly shown normal position, and preview data is overlapped with square boundary, then
Represent that preview data has no problem in the case, the position simply shown is problematic, is application layer problem.Do not have in preview data
Normal position is shown in, square boundary is shown in normal position, represents that preview data is out of joint in the case, is
HAL layers of problem.
It is including cornerwise in rectangle frame and rectangle frame, if preview data and square boundary on display border
And its diagonal is shown in normal position, and preview data is overlapped with square boundary, then normally to show, as shown in Figure 4
Situation.There is preview data and square boundary and its diagonal is all not explicitly shown normal position, and preview data and square
Shape border and diagonal overlap, situation as shown in Figure 5, which represents that preview data has no problem, the position simply shown
It is problematic, it is application layer problem.There is preview data and be not explicitly shown normal position, square boundary is shown in normally with diagonal
Position, and preview data and misaligned, the as shown in Figure 6 situation of square boundary and diagonal, the situation represent preview number
It is HAL layers of problem according to out of joint.
The application developer of camera applications can judge that preview malfunctions easily according to different display situations above
When, be HAL layers preview data itself is problematic or the problem of application layer, so as to correspondingly determine amending method.In addition,
When diagonal is included in rectangle frame, if preview data has no problem, (the feelings shown in Fig. 5 when the position simply shown is problematic
Condition), developer can be easily determined the substantially offset of display location, so that position adjustment is more convenient.
In addition, when rectangle frame includes diagonal, preview data can also be determined by rectangle frame and cornerwise angle
Whether normal interface, for example whether being such as 4:3、16:9 normal interface.
As a variation, the border display switch of preview can be also set, after user's open command is received, in advance
Border display switch is first opened, to show the preview data and the display border simultaneously on the display interface.Alternatively,
It can be by the advance closure of border display switch of user, only to show the preview data on the display interface；Described pre-
When data of looking at display is abnormal, after user's open command is received, the border display switch is opened, on the display interface
Show the preview data and the display border simultaneously.User can simply, clearly judge that display exception is application as a result,
The problem of layer or hardware abstraction layer cause.Certainly, if include diagonal in display border, diagonal and display border are same
When show or do not show simultaneously.In addition, statement " only showing the preview data " above represents to show the same of preview data
When do not show border (and diagonal), of course, it is possible to show the contents such as normal such as time, photography option.
In addition, after user (developer) develops completion camera applications, it can be with closure of border display switch to avoid shadow
Ring the normal preview of ordinary user.
Embodiment 2
Fig. 7 shows the structure diagram of one embodiment of the camera preview device of the present invention.
Camera preview device 700 in Fig. 7 includes：
Data acquisition module 710, for obtaining reference position and the preview number of the preview data on display interface
According to size；
Drafting module 720 according to the reference position and the size, is drawn after the preview data of completing
The display border of preview；
Abnormal determining module 730 shows the preview data and the display border simultaneously on the display interface, when
There is the type for determining abnormal problem when display is abnormal by the display location of the preview data and the display border.
Above-mentioned camera preview device corresponds to the camera preview method of embodiment 1.Any option in embodiment 1
Suitable for the present embodiment, I will not elaborate.
Therefore, the present invention also provides a kind of photography terminal, the photography terminal can include smart phone, tablet computer,
Desktop computer etc..Photography terminal is preferably the mobile terminals such as smart phone, tablet computer.The photography terminal includes memory and processing
Device, memory can be used for storage computer program (i.e. camera applications), processor by running the computer program so that
Photography terminal performs above-mentioned camera preview method or the function of the modules in above-mentioned camera preview device.
Memory may include storing program area and storage data field, wherein, storing program area can storage program area, at least
Application program (such as sound-playing function, image player function etc.) needed for one function etc.；Storage data field can store root
Created data (such as voice data, phone directory etc.) etc. are used according to mobile terminal.In addition, memory can be included at a high speed
Random access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or
Other volatile solid-state parts.
The present embodiment additionally provides a kind of computer storage media, by store used in above-mentioned photography terminal it is described based on
Calculation machine program.
In several embodiments provided herein, it should be understood that disclosed apparatus and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and structure in attached drawing
Figure shows the device of multiple embodiments according to the present invention, the system frame in the cards of method and computer program product
Structure, function and operation.In this regard, each box in flow chart or block diagram can represent a module, program segment or code
A part, the part of the module, program segment or code include one or more be used to implement as defined in logic function
Executable instruction.It should also be noted that in the realization method as replacement, the function that is marked in box can also be to be different from
The order marked in attached drawing occurs.For example, two continuous boxes can essentially perform substantially in parallel, they are sometimes
It can perform in the opposite order, this is depending on involved function.It is also noted that in structure chart and/or flow chart
The combination of each box and the box in structure chart and/or flow chart can use the special of function as defined in performing or action
Hardware based system realize or can be realized with the combination of specialized hardware and computer instruction.
In addition, each function module or unit in each embodiment of the present invention can integrate and to form an independence
Part or modules individualism, can also two or more modules be integrated to form an independent part.
If the function is realized in the form of software function module and is independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be intelligence
Can mobile phone, personal computer, server or network equipment etc.) perform each embodiment the method for the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can to store program code
Medium.
Present invention additionally comprises following technical schemes：
A1. a kind of camera preview method, including：
Obtain the size of reference position and the preview data of the preview data on display interface；
According to the reference position and the size, the display of drafting preview after the preview data of completing
Border；
The preview data and the display border are shown on the display interface simultaneously, are led to when appearance display is abnormal
It crosses the preview data and the display location for showing border determines the type of abnormal problem.
A2. the camera preview method according to A1, the size of the preview data is the wide and high of the preview data；
The display border is rectangle frame.
A3. the camera preview method according to A2 further includes diagonal in the rectangle frame, and is showing the square
The diagonal is shown while shape frame.
A4. the camera preview method according to A1, further includes：Reception user's open command is opened border and is shown out in advance
It closes, to show the preview data and the display border simultaneously on the display interface.
A5. the camera preview method according to A1, further includes：The advance closure of border of user's out code is received to show out
It closes, only to show the preview data on the display interface；When the preview data shows abnormal, opened receiving user
The border display switch is opened after opening instruction, to show the preview data and the display simultaneously on the display interface
Border.
A6. the camera preview method according to A1, if the preview data and the display border are not explicitly shown
Normal position and the preview data and the display overlapping margins, then the type of the abnormal problem is application layer problem；
If the preview data is not explicitly shown normal position and the display border and is shown in normal position, the abnormal problem
Type be hardware abstraction layer problem.
B7. a kind of camera preview device, including：
Data acquisition module, for obtaining reference position and the preview data of the preview data on display interface
Size；
Drafting module according to the reference position and the size, is drawn pre- after the preview data of completing
The display border look at；
Abnormal determining module shows the preview data and the display border, when going out simultaneously on the display interface
Now show the type for determining abnormal problem during exception by the display location of the preview data and the display border.
B8. the camera preview device according to B7, the size of the preview data is the wide and high of the preview data；
The display border is rectangle frame.
B9. the camera preview device according to B8 further includes diagonal in the rectangle frame, and is showing the square
The diagonal is shown while shape frame.
B10. the camera preview device according to B7, further includes switch module：It is advance for receiving user's open command
Border display switch is opened to show the preview data and the display border simultaneously on the display interface.
B11. the camera preview device according to B7, further includes switch module：It is advance for receiving user's out code
Closure of border display switch on the display interface only to show the preview data；It is shown in the preview data abnormal
When, the border display switch is opened after user's open command is received, it is described pre- to be shown simultaneously on the display interface
Look at data and the display border.
B12. the camera preview device according to B7, if the preview data and the display border are not explicitly shown
Normal position and the preview data and the display overlapping margins, then the type of the abnormal problem is application layer problem；
If the preview data is not explicitly shown normal position and the display border and is shown in normal position, the abnormal problem
Type be hardware abstraction layer problem.
C13. a kind of mobile terminal, including memory and processor, the memory is for storing computer program, institute
It states processor and runs the computer program so that camera of the mobile terminal execution according to any one of A1 to A6 is pre-
Look at method.
D14. a kind of computer readable storage medium, the meter being stored with used in the mobile terminal described in C13
Calculation machine program.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.
Claims (10)
- A kind of 1. camera preview method, which is characterized in that including：Obtain the size of reference position and the preview data of the preview data on display interface；According to the reference position and the size, the display side of drafting preview after the preview data of completing Boundary；The preview data and the display border are shown on the display interface simultaneously, pass through institute when appearance display is abnormal It states preview data and the display location for showing border determines the type of abnormal problem.
- 2. camera preview method according to claim 1, which is characterized in that the size of the preview data is the preview Data it is wide and high；The display border is rectangle frame.
- 3. camera preview method according to claim 2, which is characterized in that diagonal is further included in the rectangle frame, and And show the diagonal while rectangle frame is shown.
- 4. camera preview method according to claim 1, which is characterized in that further include：It is advance to receive user's open command Border display switch is opened, to show the preview data and the display border simultaneously on the display interface.
- 5. camera preview method according to claim 1, which is characterized in that further include：It is advance to receive user's out code Closure of border display switch, only to show the preview data on the display interface；It is shown in the preview data abnormal When, the border display switch is opened after user's open command is received, it is described pre- to be shown simultaneously on the display interface Look at data and the display border.
- 6. camera preview method according to claim 1, which is characterized in that if the preview data and the display border Normal position and the preview data and the display overlapping margins are not explicitly shown, then the type of the abnormal problem is Application layer problem；If the preview data is not explicitly shown normal position and the display border and is shown in normal position, The type of the abnormal problem is hardware abstraction layer problem.
- 7. a kind of camera preview device, which is characterized in that including：Data acquisition module, for obtaining the ruler of reference position and the preview data of the preview data on display interface It is very little；Drafting module according to the reference position and the size, draws preview use after the preview data of completing Display border；Abnormal determining module shows the preview data and the display border, when showing simultaneously on the display interface Show the type for determining abnormal problem during exception by the display location of the preview data and the display border.
- 8. camera preview device according to claim 7, which is characterized in that the size of the preview data is the preview Data it is wide and high；The display border is rectangle frame.
- 9. a kind of mobile terminal, which is characterized in that including memory and processor, the memory is used to store computer journey Sequence, the processor runs the computer program so that the mobile terminal execution is according to any one of claim 1 to 6 institute The camera preview method stated.
- 10. a kind of computer readable storage medium, which is characterized in that it is stored with institute in the mobile terminal described in claim 9 The computer program used.
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| CN108073399B (en) | 2021-08-27 |
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