CN110730300A

CN110730300A - Camera control method, device, storage medium and terminal

Info

Publication number: CN110730300A
Application number: CN201910962574.XA
Authority: CN
Inventors: 高龙
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-01-24

Abstract

The invention discloses a camera control method, a camera control device, a storage medium and a terminal. The method of the embodiment of the application comprises the following steps: acquiring a focal length value of a camera; inquiring a performance power consumption parameter corresponding to the focal length value; and scheduling system resources for the camera according to the performance power consumption parameters, scheduling more system resources for the camera when the performance requirements are met so as to improve the speed and efficiency of the camera for acquiring images, and scheduling less system resources when the power consumption requirements are met so as to reduce the power consumption of the terminal and prolong the endurance time of the terminal.

Description

Camera control method, device, storage medium and terminal

Technical Field

The present invention relates to the field of camera control, and more particularly, to a camera control method, apparatus, storage medium, and terminal.

Background

With the increasingly powerful photographing function of the mobile phone, more and more occasions are available for a user to photograph by using the camera, and in the related technology, when the user photographs by using the camera, the terminal schedules system resources for the camera by using a preconfigured resource scheduling mode, and how to optimize the camera is a problem to be solved urgently at present by photographing or photographing through the camera based on the scheduled system resources.

Disclosure of Invention

The embodiment of the application provides a camera control method, a camera control device, a storage medium and a terminal, and can solve the problem of inflexible resource configuration caused by using fixed-performance power consumption parameter scheduling system resources when a camera is called to perform image acquisition in the related art. The technical scheme is as follows;

in a first aspect, an embodiment of the present application provides a camera control method, including the following steps:

acquiring a focal length value of a camera;

inquiring a performance power consumption parameter corresponding to the focal length value;

and scheduling system resources for the camera according to the performance power consumption parameter.

In a second aspect, an embodiment of the present application provides a camera control apparatus, including:

the acquisition unit is used for acquiring a focal length value of the camera;

the query unit is used for querying the performance power consumption parameter corresponding to the focal length value;

and the scheduling unit is used for scheduling system resources for the camera according to the performance power consumption parameters.

In a third aspect, embodiments of the present application provide a computer storage medium having stored thereon a plurality of instructions adapted to be loaded by a processor and to perform any of the method steps described above.

In a fourth aspect, an embodiment of the present application provides a terminal, including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform any of the method steps described above.

The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:

in the embodiment of the application, when an application program in a terminal calls a camera to acquire an image, a focal length value of the camera is acquired, a performance power consumption parameter corresponding to the focal length value is inquired, a system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can adaptively schedule the system resource for the camera according to the focal length of the camera to meet the power consumption requirement or the performance requirement of the camera, and solves the problem of inflexible system resource configuration caused by using a fixed mode to schedule the system resource for acquiring the image through the camera in the related art, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met to improve the speed and the efficiency of the camera to acquire the image, and simultaneously schedule less system resources when the power consumption requirement is met to reduce the power consumption of the terminal, and the endurance time of the terminal is prolonged.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a terminal provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an operating system and a user space provided in an embodiment of the present application;

FIG. 3 is an architectural diagram of the android operating system of FIG. 1;

FIG. 4 is an architecture diagram of the IOS operating system of FIG. 1;

fig. 5 is a schematic flowchart of a camera control method provided in an embodiment of the present application;

FIG. 6 is another schematic flow chart diagram of a camera method provided by an embodiment of the present application;

fig. 7 is another schematic flowchart of a camera control method provided in an embodiment of the present application;

fig. 8 is another schematic flowchart of a camera control method provided in an embodiment of the present application;

fig. 9 is another schematic flowchart of a camera control method provided in an embodiment of the present application;

fig. 10 is another schematic flowchart of a camera control method provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a camera control device according to an embodiment of the present application.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout. The embodiments of the present invention described below in conjunction with the accompanying drawings are illustrative and are only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the present invention.

Referring to fig. 1, a block diagram of a terminal according to an exemplary embodiment of the present application is shown. A terminal in the present application may include one or more of the following components: a processor 110, a memory 120, an input device 130, an output device 140, and a bus 150. The processor 110, memory 120, input device 130, and output device 140 may be connected by a bus 150.

Processor 110 may include one or more processing cores. The processor 110 connects various parts within the entire terminal using various interfaces and lines, and performs various functions of the terminal 100 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 120 and calling data stored in the memory 120. Alternatively, the processor 110 may be implemented in hardware using at least one of Digital Signal Processing (DSP), field-programmable gate array (FPGA), and Programmable Logic Array (PLA). The processor 110 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing display content; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 110, but may be implemented by a communication chip.

The Memory 120 may include a Random Access Memory (RAM) or a read-only Memory (ROM). Optionally, the memory 120 includes a non-transitory computer-readable medium. The memory 120 may be used to store instructions, programs, code sets, or instruction sets. The memory 120 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like, and the operating system may be an Android (Android) system (including a system based on Android system depth development), an IOS system developed by apple inc (including a system based on IOS system depth development), or other systems. The storage data area may also store data created by the terminal in use, such as a phonebook, audio-video data, chat log data, and the like.

Referring to fig. 2, the memory 120 may be divided into an operating system space, in which an operating system runs, and a user space, in which native and third-party applications run. In order to ensure that different third-party application programs can achieve a better operation effect, the operating system allocates corresponding system resources for the different third-party application programs. However, the requirements of different application scenarios in the same third-party application program on system resources are different, for example, in a local resource loading scenario, the third-party application program has a higher requirement on the disk reading speed; in the animation rendering scene, the third-party application program has a high requirement on the performance of the GPU. The operating system and the third-party application program are independent from each other, and the operating system cannot sense the current application scene of the third-party application program in time, so that the operating system cannot perform targeted system resource adaptation according to the specific application scene of the third-party application program.

In order to enable the operating system to distinguish a specific application scenario of the third-party application program, data communication between the third-party application program and the operating system needs to be opened, so that the operating system can acquire current scenario information of the third-party application program at any time, and further perform targeted system resource adaptation based on the current scenario.

Taking an operating system as an Android system as an example, programs and data stored in the memory 120 are as shown in fig. 3, and a Linux kernel layer 320, a system runtime library layer 340, an application framework layer 360, and an application layer 380 may be stored in the memory 120, where the Linux kernel layer 320, the system runtime library layer 340, and the application framework layer 360 belong to an operating system space, and the application layer 380 belongs to a user space. The Linux kernel layer 320 provides underlying drivers for various hardware of the terminal, such as a display driver, an audio driver, a camera driver, a bluetooth driver, a Wi-Fi driver, a power management, and the like. The system runtime library layer 340 provides a main feature support for the Android system through some C/C + + libraries. For example, the SQLite library provides support for a database, the OpenGL/ES library provides support for 3D drawing, the Webkit library provides support for a browser kernel, and the like. Also provided in the system runtime library layer 340 is an Android runtime library (Android runtime), which mainly provides some core libraries that can allow developers to write Android applications using the Java language. The application framework layer 360 provides various APIs that may be used in building an application, and developers may build their own applications by using these APIs, such as activity management, window management, view management, notification management, content provider, package management, session management, resource management, and location management. At least one application program runs in the application layer 380, and the application programs may be native application programs carried by the operating system, such as a contact program, a short message program, a clock program, a camera application, and the like; or a third-party application developed by a third-party developer, such as a game-like application, an instant messaging program, a photo beautification program, a shopping program, and the like.

Taking an operating system as an IOS system as an example, programs and data stored in the memory 120 are shown in fig. 4, and the IOS system includes: a Core operating system Layer 420(Core OS Layer), a Core Services Layer 440(Core Services Layer), a Media Layer 460(Media Layer), and a touchable Layer 480(Cocoa Touch Layer). The kernel operating system layer 420 includes an operating system kernel, drivers, and underlying program frameworks that provide functionality closer to hardware for use by program frameworks located in the core services layer 440. The core services layer 440 provides system services and/or program frameworks, such as a Foundation framework, an account framework, an advertisement framework, a data storage framework, a network connection framework, a geographic location framework, a motion framework, and so forth, as required by the application. The media layer 460 provides audiovisual related interfaces for applications, such as graphics image related interfaces, audio technology related interfaces, video technology related interfaces, audio video transmission technology wireless playback (AirPlay) interfaces, and the like. Touchable layer 480 provides various common interface-related frameworks for application development, and touchable layer 480 is responsible for user touch interaction operations on the terminal. Such as a local notification service, a remote push service, an advertising framework, a game tool framework, a messaging User Interface (UI) framework, a User Interface UIKit framework, a map framework, and so forth.

In the framework shown in FIG. 4, the framework associated with most applications includes, but is not limited to: a base framework in the core services layer 440 and a UIKit framework in the touchable layer 480. The base framework provides many basic object classes and data types, provides the most basic system services for all applications, and is UI independent. While the class provided by the UIKit framework is a basic library of UI classes for creating touch-based user interfaces, iOS applications can provide UIs based on the UIKit framework, so it provides an infrastructure for applications for building user interfaces, drawing, processing and user interaction events, responding to gestures, and the like.

The Android system can be referred to as a mode and a principle for realizing data communication between the third-party application program and the operating system in the IOS system, and details are not repeated herein.

The input device 130 is used for receiving input instructions or data, and the input device 130 includes, but is not limited to, a keyboard, a mouse, a camera, a microphone, or a touch device. The output device 140 is used for outputting instructions or data, and the output device 140 includes, but is not limited to, a display device, a speaker, and the like. In one example, the input device 130 and the output device 140 may be combined, and the input device 130 and the output device 140 are touch display screens for receiving touch operations of a user on or near the touch display screens by using any suitable object such as a finger, a touch pen, and the like, and displaying user interfaces of various applications. The touch display screen is generally provided at a front panel of the terminal. The touch display screen may be designed as a full-face screen, a curved screen, or a profiled screen. The touch display screen can also be designed to be a combination of a full-face screen and a curved-face screen, and a combination of a special-shaped screen and a curved-face screen, which is not limited in the embodiment of the present application.

In addition, those skilled in the art will appreciate that the configurations of the terminals illustrated in the above-described figures do not constitute limitations on the terminals, as the terminals may include more or less components than those illustrated, or some components may be combined, or a different arrangement of components may be used. For example, the terminal further includes a radio frequency circuit, an input unit, a sensor, an audio circuit, a wireless fidelity (WiFi) module, a power supply, a bluetooth module, and other components, which are not described herein again.

In the embodiment of the present application, the main body of execution of each step may be the terminal described above. Optionally, the execution subject of each step is an operating system of the terminal. The operating system may be an android system, an IOS system, or another operating system, which is not limited in this embodiment of the present application.

The terminal of the embodiment of the application can also be provided with a display device, and the display device can be various devices capable of realizing a display function, for example: a cathode ray tube (CR) display, a light-emitting diode (LED) display, an electronic ink panel, a Liquid Crystal Display (LCD), a Plasma Display Panel (PDP), and the like. The user can view information such as displayed text, images, video, etc. using the display device on the terminal 101. The terminal may be a smart phone, a tablet computer, a gaming device, an AR (Augmented Reality) device, an automobile, a data storage device, an audio playing device, a video playing device, a notebook, a desktop computing device, a wearable device such as an electronic watch, an electronic glasses, an electronic helmet, an electronic bracelet, an electronic necklace, an electronic garment, or the like.

In the terminal shown in fig. 1, the processor 110 may be configured to call an application program stored in the memory 120 and specifically execute the camera control method according to the embodiment of the present application.

In the technical scheme provided by the embodiment of the application, when an application program in a terminal calls a camera to acquire an image, the focal length value of the camera is acquired, a performance power consumption parameter corresponding to the focal length value is inquired, a system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can adaptively schedule the system resource for the camera according to the focal length of the camera to meet the power consumption requirement or the performance requirement of the camera, and solves the problem that the configuration of the system resource is inflexible caused by using the fixed mode scheduling system resource to acquire the image through the camera in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met to improve the speed and the efficiency of the camera to acquire the image, and simultaneously schedule less system resources when the power consumption requirement is met, the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

In the following method embodiments, for convenience of description, only the main execution body of each step is described as a terminal.

The following describes in detail a camera control method provided in an embodiment of the present application with reference to fig. 5 to 10. The camera control device in the embodiment of the present application may be a terminal shown in fig. 2 to 10.

Please refer to fig. 5, which provides a flowchart of a camera control method according to an embodiment of the present application. As shown in fig. 5, the method of the embodiment of the present application may include the steps of:

s501, obtaining a focal length value of the camera.

Wherein the focal length value represents the distance of the light spot of the camera to the focal point on the optical axis. The terminal can be provided with a plurality of cameras, for example: the terminal is provided with a front camera and a rear camera, the number of the front cameras can be one or more, and the number of the rear cameras can also be one or more. In the case where the number of front cameras or rear cameras is plural, different cameras may have different zoom capabilities. The camera in S501 may be any one of a plurality of cameras set in the terminal. When an application program installed in the terminal calls a camera to acquire an image, the terminal acquires the current focal length value of the camera, and the application program calling the camera can be a camera application program, an instant messaging application program, a live broadcast application program or other application programs and the like.

And S502, inquiring a performance power consumption parameter corresponding to the focal length value.

The performance power consumption parameter is used to describe the performance and/or power consumption of hardware or software in the terminal, and includes, for example: the performance power consumption parameters comprise CPU frequency, the number of on-line processor cores, the memory usage amount, the memory frequency or GPU frequency and the like. The performance and the power consumption expressed by the performance power consumption parameter are two opposite factors, and when the performance indicated by the performance power consumption parameter is better, the power consumption is generally higher; conversely, when the performance indicated by the performance power consumption parameter is poor, the power consumption is generally low.

The terminal prestores or preconfigures a mapping relation between the focal length value and the performance power consumption parameter, and the terminal can inquire the performance power consumption parameter corresponding to the focal length value currently used by the camera according to the mapping relation.

In one possible embodiment, the performance power consumption parameter includes one or more of a processor frequency, a processor core number, a memory frequency, a GPU frequency, and a scheduling policy of a system scheduler, where the processor frequency is also called a CPU frequency and represents an operating frequency of a CPU; the number of the processor cores represents the number of processors in a working state in the multi-core processor; the memory frequency represents the working frequency of the memory; the GPU frequency represents the working frequency of the GPU; the scheduling policy of the system scheduler represents the rules by which the operating system schedules the CPU.

And S503, scheduling system resources for the camera according to the performance power consumption parameters.

The terminal schedules system resources according to the performance power consumption parameters queried in S502, so that the current performance power consumption state of the terminal meets the requirements of the performance power consumption parameters. For example: the CPU frequency indicated by the performance power consumption parameters is 2GHz, the CPU frequency is adjusted to 2GHz by the indication of the performance power consumption parameters of the terminal, and then images are collected through the camera based on the CPU frequency.

When the scheme of the embodiment of the application is executed, when an application program in a terminal calls a camera to acquire an image, the focal length value of the camera is acquired, the performance power consumption parameter corresponding to the focal length value is inquired, the system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can adaptively schedule the system resource for the camera according to the focal length of the camera to meet the power consumption requirement or the performance requirement of the camera, and solves the problem that the system resource configuration is inflexible when the image is acquired through the camera and the system resource is scheduled in a fixed mode in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met to improve the speed and the efficiency of the camera to acquire the image, and simultaneously schedule less system resources when the power consumption requirement is met, the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

Please refer to fig. 6, which provides a flowchart of a camera control method according to an embodiment of the present application. The present embodiment is exemplified by applying the camera control method to the terminal. The camera control method may include the steps of:

s601, acquiring a focal length value of the camera.

Wherein the focal length value represents the distance of the light spot of the camera to the focal point on the optical axis. The terminal can be provided with a plurality of cameras, for example: the terminal is provided with a front camera and a rear camera, the type of the front camera or the rear camera is not limited in the embodiment of the application, and the front camera and the rear camera can be periscopic cameras or underscreen cameras. The number of the front camera or the rear camera may be one or more. When the number of the front cameras or the rear cameras is multiple, different cameras have different zooming capabilities, and the terminal zooms in a large range by switching the cameras. For example: the number of the rear cameras is 3, and the rear cameras are respectively a camera 1, a camera 2 and a camera 3, wherein the camera 1 has the zoom capability of 0.5-5 times, the camera 2 has the zoom capability of 10-20 times, and the camera 3 has the zoom capability of 30-50 times.

When an application program installed in the terminal calls the camera to collect an image, the terminal acquires a current focal length value of the camera, wherein the current focal length value can be set by a user or set by the terminal through automatic focusing. The application program calling the camera is a camera application program, an instant messaging application program, a live broadcast application program or other application programs and the like.

And S602, determining the magnification of the focal length value relative to the standard focal length value.

The terminal pre-stores a standard focal length value, the standard focal length value is generally a focal length value used by the terminal as a default, and after the terminal acquires the currently used focal length value, the terminal determines the amplification factor between the currently used focal length value and the pre-stored standard focal length value, wherein the amplification factor is a number greater than 0 and can be greater than 1, equal to 1 or less than 1.

For example: if the standard focal length value prestored by the terminal is f, and the currently used focal length value of the terminal is 2f, the magnification factor is 2; the currently used focal length value of the terminal is 0.5f, and the magnification is 0.5.

And S604, inquiring the performance power consumption parameters corresponding to the amplification factor according to a preset mapping relation.

The terminal pre-stores or pre-configures a mapping relationship between the magnification factor and the performance power consumption parameter, and the terminal queries the corresponding performance power consumption parameter in the mapping relationship according to the magnification factor determined in S602.

For example, the mapping relationship is shown in table 1:

magnification factor	CPU frequency	GPU frequency
			0.5	0.8GHz	1GHz
1	1GHz	1.5GHz
			5	2GHz	2GHz

TABLE 1

The terminal determines that the amplification factor is 1, and the terminal inquires the table 1 to obtain the corresponding performance power consumption parameters as follows: the CPU frequency is 1GHz, and the GPU frequency is 1.5 GHz.

In a possible implementation manner, the amplification factor in the mapping relationship is correlated with the power consumption indicated by the performance power consumption parameter, that is, the larger the amplification factor is, the larger the power consumption indicated by the corresponding performance power consumption parameter is; the smaller the amplification factor, the smaller the power consumption indicated by the corresponding performance power consumption parameter.

In a possible implementation manner, the amplification factor and the power consumption indicated by the performance power consumption parameter in the mapping relation are in negative correlation, that is, the larger the amplification factor is, the smaller the power consumption indicated by the corresponding performance power consumption parameter is; the smaller the amplification factor, the greater the power consumption indicated by the corresponding performance power consumption parameter.

In a possible implementation manner, the amplification factor in the mapping relationship and the performance indicated by the performance power consumption parameter have a positive correlation, that is, the larger the amplification factor is, the higher the performance indicated by the performance power consumption parameter is, and the smaller the amplification factor is, the lower the performance indicated by the performance power consumption parameter is.

In a possible implementation manner, the amplification factor and the performance indicated by the performance power consumption parameter in the mapping relation are in negative correlation, that is, the larger the amplification factor is, the lower the performance indicated by the performance power consumption parameter is; the smaller the magnification, the higher the performance indicated by the performance power consumption parameter.

And S605, scheduling system resources for the camera according to the performance power consumption parameters.

The terminal schedules system resources according to the performance power consumption parameters queried in S602, so that the current performance function state of the terminal meets the requirements of the performance power consumption parameters. For example: the terminal, according to the performance power consumption parameter queried in S604, is: the CPU frequency is 1GHz, the GPU frequency is 1.5GHz, the terminal adjusts the current frequency of the CPU to 1GHz and the current frequency of the GPU to 1.5GHz according to the performance power consumption parameters.

When the scheme of the embodiment of the application is executed, when an application program in a terminal calls a camera to acquire an image, the focal length value of the camera is acquired, the magnification of the focal length value relative to a standard focal length value is inquired, a performance power consumption parameter corresponding to the magnification is inquired, system resources are scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resources, the embodiment of the application can adaptively schedule the system resources for the camera according to the focal length of the camera to meet the power consumption requirement or performance requirement of the camera, and solves the problem that the configuration of the system resources is inflexible when the camera acquires the image and uses the fixed mode scheduling system resources in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met to improve the speed and the efficiency of the camera to acquire the image, meanwhile, less system resources are scheduled when the power consumption requirement is met, so that the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

Referring to fig. 7, a schematic flowchart of a camera control method provided in an embodiment of the present application is shown, where in the embodiment of the present application, the camera control method includes:

and S701, acquiring a focal length value of the camera.

The specific process of S701 may refer to the description of S601, and is not described herein again.

And S702, determining the magnification between the focal length value and the standard focal length value.

The specific process of S702 may refer to the description of S602, and is not described herein again.

And S703, inquiring an index value corresponding to the magnification factor.

The index value is used to indicate the sequence number of the magnification, the index value can be represented by characters or numbers, and different magnifications correspond to different index values. The terminal prestores or is preconfigured with a mapping relationship between the magnification factor and the index value, for example: the mapping is shown in table 2:

magnification factor	Index value
		0.5	0x12f0
1	0x1225
		5	0xf980

TABLE 2

When the terminal determines that the magnification is 1, the terminal looks up the table 2 to obtain an index value of 0x 1225.

In a possible implementation manner, the index value is a character string, a server end and a client end are deployed in the terminal, a communication interface, such as a socket interface, is arranged between the client end and the server section, a mapping relationship between the amplification factor and the index value is prestored or preconfigured in the client end, after the client end queries the index value, the index value is sent to the server section through the communication interface, and after the server verifies that the index value is legal, the step of S704 is executed.

S704, inquiring performance power consumption parameters corresponding to the index values according to a preset mapping relation.

The terminal prestores or is preconfigured with a mapping relationship between the index value and the performance power consumption parameter, for example: and the server section deployed by the terminal stores the mapping relation between the index value and the performance power consumption parameter. And the terminal queries the corresponding performance power consumption parameter according to the index value queried in the step S703.

For example, the mapping relationship is shown in table 3:

CPU frequency	Index value
		0.5GHz	0x12f0
1GHz	0x1225
		1.5GHz	0xf980

TABLE 3

The terminal inquires that the corresponding performance power consumption parameter CPU frequency is 1GHz according to the mapping relation in the table 3 according to the condition that the index value is determined to be 0x 1225.

S705, scheduling system resources for the camera according to the performance power consumption parameters.

The terminal schedules system resources according to the performance power consumption parameters queried in S602, so that the current performance function state of the terminal meets the requirements of the performance power consumption parameters. For example: the terminal, according to the performance power consumption parameter queried in S704, is: the CPU frequency is 1GHz, and the terminal adjusts the current frequency of the CPU to 1GHz according to the performance power consumption parameter.

When the scheme of the embodiment of the application is executed, when an application program in a terminal calls a camera to acquire an image, the focus value of the camera is acquired, the magnification of the focus value relative to a standard focus value is inquired, then the index value corresponding to the magnification is inquired, and the performance power consumption parameter corresponding to the index value is inquired, the system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can self-adaptively schedule the system resource for the camera according to the focus of the camera to meet the power consumption requirement or performance requirement of the camera, and solves the problem that the system resource configuration is not flexible caused by using the fixed mode scheduling system resource to acquire the image through the camera in the related technology, and can schedule more system resources for the camera when the performance requirement is met, the method and the device have the advantages that the speed and the efficiency of the camera for collecting images are improved, and meanwhile, fewer system resources are scheduled when the power consumption requirement is met, so that the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

Referring to fig. 8, a schematic flowchart of a camera control method provided in an embodiment of the present application is shown, where in the embodiment of the present application, the method includes:

and S801, acquiring a focal length value of the camera.

The specific process of S801 may refer to the description of S601, and is not described herein again.

S802, acquiring a plurality of pre-stored focal length value intervals.

Wherein, mutual noncoincidence between a plurality of focus value intervals, the quantity in a plurality of focus value intervals and the endpoint value in each focus value interval can be according to actual need and decide, and this application embodiment does not do the restriction.

And S803, determining a target focal length value interval in which the focal length value is located in the multiple focal length value intervals.

The terminal determines which focal length value interval of a plurality of focal length value intervals the currently used focal length value of the camera is located in, and the focal length value interval is a target focal length value interval.

For example, the terminal pre-stores or pre-configures 3 focal length value intervals, which are respectively a focal length value interval 1: [5mm, 10mm), focal length value interval 2: [10mm, 20mm), focal length value interval 3: [20mm, + ∞). The terminal determines that the focal length value currently used by the camera is 8mm, and the focal length value falls into a focal length value interval 1, wherein the focal length value interval 1 is a target focal length value interval.

S804, inquiring the performance power consumption parameter corresponding to the target focal length value interval according to the preset mapping relation.

The terminal pre-stores or pre-configures a mapping relation between the focal length value interval and the performance power consumption parameter, and the terminal queries the corresponding performance power consumption parameter according to the mapping relation.

For example, the performance power consumption parameter is shown in expression 4:

interval of focal length values	Performance power consumption parameter
		Interval of focal length values 1	CPU：1GHz
Interval of focal length values 2	CPU：1.5GHz
		Interval of focal length values 3	CPU：2GHz

TABLE 4

In a possible implementation manner, the focal length value interval and the power consumption indicated by the performance power consumption parameter in the mapping relationship are in positive correlation, that is, the larger the focal length value interval is, the larger the power consumption indicated by the performance power consumption parameter is; conversely, the smaller the focal length value interval, the smaller the power consumption indicated by the performance power consumption parameter.

In a possible implementation manner, the focal length value interval and the power consumption indicated by the performance power consumption parameter in the mapping relationship have a negative correlation, that is, the larger the focal length value interval is, the smaller the power consumption indicated by the performance power consumption parameter is, and conversely, the smaller the focal length value interval is, the larger the power consumption indicated by the performance power consumption parameter is.

And S805, scheduling system resources for the camera according to the performance power consumption parameters.

The terminal schedules system resources according to the performance power consumption parameters queried in S804, so that the current performance function state of the terminal meets the requirements of the performance power consumption parameters. For example: the terminal, according to the performance power consumption parameter queried in S804, is: the CPU frequency is 1GHz, and the terminal adjusts the current frequency of the CPU to 1GHz according to the performance power consumption parameter.

When the scheme of the embodiment of the application is executed, when an application program in a terminal calls a camera to acquire an image, the focal length value of the camera is acquired, a target focal length value interval where the focal length value is located and a performance power consumption parameter corresponding to the target focal length value interval are inquired, system resources are scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resources, the embodiment of the application can adaptively schedule the system resources for the camera according to the focal length of the camera to meet the power consumption requirement or the performance requirement of the camera, and solves the problem that the configuration of the system resources is not flexible due to the fact that the camera acquires the image and uses the fixed mode scheduling system resources in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met, so as to improve the speed and the efficiency of the camera to acquire the image, meanwhile, less system resources are scheduled when the power consumption requirement is met, so that the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

Referring to fig. 9, another schematic flow chart of a camera control method according to an embodiment of the present application is provided, where in the embodiment of the present application, the method includes:

and S901, acquiring a focal length value of the camera.

The specific process of S901 may refer to the description of S601, and is not described herein again.

And S902, determining the residual capacity.

Wherein the remaining capacity represents a currently remaining capacity of a battery of the terminal, and the remaining capacity may be determined by measuring an operating current and an operating voltage of the battery.

And S903, judging whether the residual electric quantity is smaller than the electric quantity threshold value.

The terminal pre-stores or pre-configures an electric quantity threshold, compares the residual electric quantity with the electric quantity threshold, and executes S904 when the residual electric quantity is smaller than the electric quantity threshold; when the remaining power is not less than the power threshold, S905 is performed. The electric quantity threshold value can be determined according to actual requirements, and the embodiment of the application is not limited.

And S904, inquiring a first performance power consumption parameter corresponding to the focal length value according to the first mapping relation.

The mapping manner of the first mapping relationship may refer to the mapping manners in fig. 6 to 8, and the specific mapping manner may refer to the process of querying the performance power consumption parameter in fig. 6 to 8, which is not described herein again.

And S905, inquiring a second performance power consumption parameter corresponding to the focal length value according to the second mapping relation.

Wherein the power consumption indicated by the first performance power consumption parameter is less than the power consumption indicated by the second performance power consumption parameter. The mapping manner of the second mapping relationship may be the mapping manner in fig. 6 to 8, and the specific mapping manner may refer to the process of querying the performance power consumption parameter in fig. 6 to 8, which is not described herein again.

And S906, scheduling system resources for the camera according to the inquired performance power consumption parameters.

The specific process of S906 may refer to the description of S805, and is not described herein again.

When the scheme of the embodiment of the application is executed, when an application program in the terminal calls the camera to acquire an image, the focal length value of the camera and the residual electric quantity of the terminal are acquired, the corresponding performance power consumption parameter is determined according to the focal length value and the residual electric quantity, the system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can adaptively schedule the system resource for the camera according to the focal length of the camera so as to meet the power consumption requirement or the performance requirement of the camera, and solve the problem that the configuration of the system resource is inflexible caused by using the fixed mode scheduling system resource for acquiring the image through the camera in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met so as to improve the speed and the efficiency of the camera for acquiring the image, and simultaneously schedule less system resources when the power consumption requirement is met, the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

Referring to fig. 10, another schematic flow chart of a camera control method according to an embodiment of the present application is provided, where in the embodiment of the present application, the method includes:

s1001, acquiring a focal length value of the camera.

The specific process of S1001 may refer to the description of S601, and is not described herein again.

S1002, determining a load parameter value of the terminal.

The load parameter value represents the current load state of the terminal, and may be described by using parameters such as CPU utilization, memory occupancy, and disk read-write times, and the load parameter value and the load degree in this embodiment are in positive correlation, that is, the larger the load parameter value is, the heavier the load is, and the smaller the load parameter value is, the lighter the load is.

And S1003, judging whether the load parameter value is larger than a load threshold value.

The terminal pre-stores or pre-configures a load threshold, compares the current load parameter value with the load threshold, and executes S1004 when the load parameter value is greater than the load threshold; when the load parameter value is not greater than the load threshold value, S1005 is executed. The load threshold may be determined according to actual requirements, and the embodiments of the present application are not limited.

And S1004, inquiring a first performance power consumption parameter corresponding to the focal length value according to the first mapping relation.

S1005, inquiring a second performance power consumption parameter corresponding to the focal length value according to the second mapping relation.

Wherein the performance indicated by the second performance power consumption parameter is better than the performance indicated by the first performance power consumption parameter. The mapping manner of the second mapping relationship may refer to the mapping manners in fig. 6 to 8, and the specific mapping manner may refer to the process of querying the performance power consumption parameter in fig. 6 to 8, which is not described herein again.

And S1006, scheduling system resources for the camera according to the inquired performance power consumption parameters.

The specific process of S1006 may refer to the description of S805, and is not described herein again.

When the scheme of the embodiment of the application is executed, when an application program in the terminal calls the camera to acquire an image, the focal length value of the camera and the current load parameter value of the terminal are acquired, the corresponding performance power consumption parameter is determined according to the focal length value and the current load parameter value, the system resource is scheduled for the camera according to the performance power consumption parameter, and the image is acquired through the camera according to the scheduled system resource, the embodiment of the application can adaptively schedule the system resource for the camera according to the focal length of the camera to meet the power consumption requirement or the performance requirement of the camera, and solves the problem that the system resource configuration is flexible due to the fact that the fixed mode scheduling system resource is used for acquiring the image through the camera in the related technology, the embodiment of the application can schedule more system resources for the camera when the performance requirement is met, so as to improve the speed and the efficiency of the camera for acquiring the image, meanwhile, less system resources are scheduled when the power consumption requirement is met, so that the power consumption of the terminal is reduced, and the endurance time of the terminal is prolonged.

The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.

Please refer to fig. 11, which illustrates a schematic structural diagram of a camera control device according to an exemplary embodiment of the present application. Hereinafter referred to as the apparatus 11, the apparatus 11 may be implemented by software, hardware or a combination of both as all or part of a terminal. The apparatus 11 includes an acquisition unit 1101, an inquiry unit 1102, and a scheduling unit 1103.

An acquisition unit 1101 for acquiring a focal length value of the camera;

a query unit 1102, configured to query a performance power consumption parameter corresponding to the focal length value;

a scheduling unit 1103, configured to schedule system resources for the camera according to the performance power consumption parameter.

In one or more possible embodiments, the querying the performance power consumption parameter corresponding to the focus value includes:

determining a magnification of the focus value relative to a standard focus value;

and inquiring the performance power consumption parameter corresponding to the amplification factor according to a preset mapping relation.

determining a magnification between the focus value relative to a standard focus value;

inquiring an index value corresponding to the magnification;

and inquiring the performance power consumption parameter corresponding to the index value according to a preset mapping relation.

acquiring a plurality of pre-stored focal length value intervals;

determining a target focal length value interval in which the focal length value is located in a plurality of focal length value intervals;

and inquiring the performance power consumption parameter corresponding to the target focal length value interval according to a preset mapping relation.

In one or more possible embodiments, scheduling system resources for the camera according to the performance power consumption parameter includes:

when the residual electric quantity is smaller than the electric quantity threshold value, inquiring a first performance power consumption parameter corresponding to the focal length value according to a first mapping relation;

when the residual electric quantity is larger than or equal to the electric quantity threshold value, inquiring a second performance power consumption parameter corresponding to the focal length value according to a second mapping relation; wherein the power consumption indicated by the first performance power consumption parameter is less than the power consumption indicated by the second performance power consumption parameter.

when the load parameter value is larger than the load threshold value, inquiring a first performance power consumption parameter corresponding to the focal length value according to a first mapping relation; or

When the load parameter value is smaller than or equal to the load threshold value, inquiring a second performance power consumption parameter corresponding to the focal length value according to a second mapping relation; wherein the performance indicated by the second performance power consumption parameter is better than the performance indicated by the first performance power consumption parameter.

In one or more possible embodiments, the performance power consumption parameters include:

one or more of a processor frequency, a number of processor cores, a memory frequency, a Graphics Processing Unit (GPU) frequency, and a scheduling policy of a system scheduler.

It should be noted that, when the apparatus 11 provided in the above embodiment executes the camera control method, only the division of the above functional modules is taken as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the above described functions. In addition, the embodiments of the camera control method provided in the above embodiments belong to the same concept, and details of implementation processes thereof are referred to in the embodiments of the method, which are not described herein again.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

An embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, where the instructions are suitable for being loaded by a processor and executing the method steps in the embodiments shown in fig. 5 to 10, and a specific execution process may refer to specific descriptions of the embodiments shown in fig. 5 to 10, which are not described herein again.

The present application further provides a computer program product storing at least one instruction, which is loaded and executed by the processor to implement the camera control method according to the above embodiments.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. A camera control method is characterized in that,

acquiring a focal length value of a camera;

2. The method of claim 1, wherein querying the performance power consumption parameter corresponding to the focus value comprises:

3. The method of claim 1, wherein querying the performance power consumption parameter corresponding to the focus value comprises:

inquiring an index value corresponding to the magnification;

4. The method of claim 1, wherein querying the performance power consumption parameter corresponding to the focus value comprises:

acquiring a plurality of pre-stored focal length value intervals;

5. The method of claim 1, wherein scheduling system resources for the camera according to the performance power consumption parameter comprises:

6. The method of claim 1, wherein querying the performance power consumption parameter corresponding to the focus value comprises:

7. The method of any of claims 1 to 6, wherein the performance power consumption parameters comprise:

8. A camera control apparatus, comprising:

the acquisition unit is used for acquiring a focal length value of the camera;

9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.

10. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1-7 are implemented when the program is executed by the processor.