CN106657680A - Method and device for controlling frame rate of mobile terminal and mobile terminal - Google Patents

Abstract

The embodiment of the present invention discloses a method, device and mobile terminal for controlling the frame rate of a mobile terminal, the method comprising: obtaining a current first frame rate of the mobile terminal and a second frame rate to be adjusted, the first frame rate being greater than the second frame rate; obtaining at least one intermediate frame rate between the first frame rate and the second frame rate according to a set smooth adjustment strategy; and gradually adjusting the frame rate of the mobile terminal from the first frame rate to the second frame rate based on the at least one intermediate frame rate. The technical solution provided by the embodiment of the present invention can reasonably adjust the frame rate of the mobile terminal.

Description

Method and device for controlling frame rate of mobile terminal and mobile terminal

technical field

Embodiments of the present invention relate to the technical field of mobile terminals, and in particular, to a method and device for controlling the frame rate of a mobile terminal and a mobile terminal.

Background technique

With the development of mobile terminal technology, various mobile terminals have become indispensable tools in people's life and work. In a mobile terminal installed with an operating system, the mobile terminal continuously refreshes the display screen to present various display screens at different times.

The display refresh process in a mobile terminal such as a mobile phone mainly includes a picture drawing operation, a picture composition operation and a display operation. Each application, such as desktop or video, executes the Render operation to draw its own image; after all the applications complete the Render operation, the system executes the Compose operation to combine the images drawn by each application into one display Frame; outputs this display frame to the screen for final display. In the related art, when the mobile terminal needs to adjust the frame rate, the frame rate control method has certain defects and needs to be improved.

Contents of the invention

Embodiments of the present invention provide a method and device for controlling the frame rate of a mobile terminal, and a mobile terminal, which can reasonably adjust the frame rate of the mobile terminal.

In the first aspect, the embodiment of the present invention provides a method for controlling the frame rate of a mobile terminal, including:

Acquiring the current first frame rate of the mobile terminal and a second frame rate to be adjusted, where the first frame rate is greater than the second frame rate;

Obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy;

Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.

In the second aspect, an embodiment of the present invention provides a device for controlling the frame rate of a mobile terminal, including:

A frame rate acquisition module, configured to acquire the current first frame rate of the mobile terminal and a second frame rate to be adjusted, the first frame rate being greater than the second frame rate;

An intermediate frame rate acquisition module, configured to acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy;

A frame rate adjustment module, configured to gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate based on the at least one intermediate frame rate.

In a third aspect, an embodiment of the present invention provides a mobile terminal, including a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following steps when executing the computer program :

Acquiring the current first frame rate of the mobile terminal and a second frame rate to be adjusted, where the first frame rate is greater than the second frame rate;

Obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy;

Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.

In the embodiment of the present invention, by obtaining the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate is greater than the second frame rate, and the first frame rate is obtained according to the set smooth adjustment strategy. at least one intermediate frame rate between the frame rate and the second frame rate, and based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second Frame rate, which can reasonably adjust the frame rate of the mobile terminal.

Description of drawings

FIG. 1 is a flowchart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a display process provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a Vsync display refresh mechanism provided by an embodiment of the present invention;

FIG. 4 is a flow chart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of a frame rate adjustment smooth curve provided by an embodiment of the present invention;

FIG. 6 is a flow chart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a device for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe various operations (or steps) as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

Figure 1 shows a flow chart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention. The method of this embodiment can be executed by a device for controlling the frame rate of a mobile terminal, which can be implemented through hardware and/or It is realized by means of software, and the device can be set inside the mobile terminal as a part of the mobile terminal.

As shown in Figure 1, a method for controlling the frame rate of a mobile terminal provided in this embodiment includes the following steps:

Step 101. Obtain a current first frame rate and a second frame rate to be adjusted of the mobile terminal, where the first frame rate is greater than the second frame rate.

For ease of understanding, the Android system is taken as an example below to briefly describe the process from generation to display of the display screen in the Android system. Fig. 2 is a schematic diagram of a display process provided by an embodiment of the present invention.

First, at the application layer, each application (hereinafter referred to as application or APP) executes the image rendering (Render) operation independently according to its own application design (generally determined by the corresponding installation package APK). After the processing is completed, each application sends all the drawn images to a composite module (Surface flinger) that performs image composite operations.

Then, in the application framework (Framework) layer, the system has three frame buffers (Frame Buffer, FB), and the three FBs can be used cyclically. Surface flinger finds an idle FB from the three FBs, and on the idle FB, according to the application configuration information, such as which image should be placed at the bottom, which image should be placed at the top, and which image should use the bottom effect, etc., through compositing (Compose ) operation to superimpose multiple images drawn by each application to obtain a final displayed display frame (image to be displayed).

Finally, at the kernel (Kernel) layer, the picture to be displayed can be transmitted to the display hardware (including a display controller and a display screen) through a mobile terminal display processing (Mobile Display Process, MDP) module, so that the picture to be displayed is finally displayed on the display screen. The type of the display screen is not limited here, for example, it may be a liquid crystal display (LiquidCrystal Display, LCD).

In addition, the Android system introduces a synchronous (Vsync) refresh mechanism during the display refresh process. FIG. 3 shows a schematic diagram of a Vsync display refresh mechanism provided by an embodiment of the present invention. Specifically, the Vsync refresh mechanism is actually to insert a "heartbeat" or system synchronization (Vsync) signal in the entire display process, which is sent by the display controller to the CPU to generate a Vsync interrupt to control the timing of each Render operation and Compose operation. It needs to be completed according to the heartbeat, so that the key steps in the entire display process are included in the unified management mechanism of Vsync. The frequency of the Vsync signal is currently 60 Hz.

As shown in Figure 3, assuming that the period of the Vsync signal is T, regardless of the transmission delay of the signal, after the first Vsync signal Vsync1 reaches the CPU, the CPU controls the synthesis module to forward the first Vsync signal Vsync1 to each application, and each application responds to The user performs operations such as touch and slide on the display screen to start the Render operation; and after each application completes the Render operation, multiple images drawn by each application are obtained. After the second Vsync signal Vsync2 reaches the CPU, the CPU controls the display controller to forward the second Vsync signal Vsync2 to the compositing module, and the compositing module starts to perform the image compositing operation, compositing multiple images drawn by each application to generate images to be displayed picture. After the third Vsync signal Vsync3 reaches the CPU, the system starts to perform display refresh, and finally displays the picture to be displayed on the display screen.

In the process of drawing, compositing and refreshing the display of images in the mobile terminal, there are three kinds of frame rates: frame rate for drawing, frame rate for compositing and refresh rate (refresh frame rate).

Wherein, the drawing frame rate is the frame rate at which the application program triggers the composition module to synthesize after the image drawing is completed, which can be understood as the number of times the application program draws the image per unit time (for example, 1 second).

Compositing frame rate is the frame rate for compositing the drawn images of various application programs into a frame to be displayed.

The refresh rate is the frame rate at which the display screen of the mobile terminal is refreshed.

The frame rate mentioned in step 101 may be a rendering frame rate, a composite frame rate or a refresh rate.

There may be some application scenarios where the frame rate of the mobile terminal needs to be adjusted in the running scenario of the mobile terminal. For the application scenario where the frame rate is adjusted from a low frame rate to a high frame rate, the frame rate can be directly set to a high frame rate, but for a high frame rate In the application scenario where the frame rate is adjusted to a low frame rate, if the high frame rate is directly reduced to a low frame rate, it will cause the problem that the screen display is not natural and smooth enough, and the user experience is very bad.

This step is used to obtain the current first frame rate and the second frame rate to be adjusted, wherein the first frame rate is greater than the second frame rate. For example, the first frame rate is 60HZ, and the second frame rate is 50HZ.

Step 102: Obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to a set smoothing adjustment strategy.

This step is used to obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to a preset smooth adjustment strategy. Specifically, the at least one intermediate frame rate can be obtained according to the first frame rate and the second frame rate according to the set function correspondence between the first frame rate and the second frame rate and each intermediate frame rate; or combined with the movement The terminal obtains the at least one intermediate frame rate according to the first frame rate and the second frame rate according to the current running scene of the terminal.

Step 103. Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.

The frame rate of the mobile terminal is sequentially adjusted from the first frame rate to each intermediate frame rate until it is adjusted to the second frame rate, which realizes the smooth adjustment of the frame rate of the mobile terminal and avoids directly adjusting the frame rate from the first frame rate to the second frame rate. The problem that the picture display is not smooth caused by the second frame rate.

In the method for controlling the frame rate of a mobile terminal provided in this embodiment, by acquiring the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate is greater than the second frame rate, according to the set A smooth adjustment strategy, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate, and based on the at least one intermediate frame rate, changing the frame rate of the mobile terminal from the first The frame rate is gradually adjusted to the second frame rate, so that the frame rate of the mobile terminal can be adjusted reasonably.

FIG. 4 shows a flow chart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention. As shown in Figure 4, the method provided in this embodiment includes the following steps:

Step 201. Obtain a current first frame rate and a second frame rate to be adjusted of the mobile terminal, where the first frame rate is greater than the second frame rate.

Step 201. Using the first frame rate as the current frame rate, and based on the setting correspondence between the current frame rate and the intermediate frame rate, obtain a first intermediate frame rate corresponding to the current frame rate.

Wherein, the setting relationship between the current frame rate and the intermediate frame rate includes:

F(n)=Fs*cos((nπ)/K); or,

F(n)＝Fs*sin((nπ)/K+π/2)

Wherein, F(n) is an intermediate frame rate, Fs is a current frame rate, K is a set value, n is an initial value of 1, and an increase value is a variable of a set interval value, and the current frame rate is the first frame The rate n is the initial value 1. Where π is 180°, and the value of K may be 180°.

It can be understood that, the setting relationship between the current frame rate and the intermediate frame rate may also be a linear relationship, an exponential relationship or a logarithmic relationship, which is not limited in this embodiment. Exemplarily, the setting relationship can also be: F(n)=Fs-1, wherein F(n) is the intermediate frame rate, Fs is the current frame rate, n is an initial value of 1, and the increment value is set For the variable of the interval value, for example, the interval value is set to 1, that is, n=n+1, and n is the initial value 1 when the current frame rate is the first frame rate.

The following is an example of setting the relationship as F(n)=Fs*cos((nπ)/K):

If the value of K is 180°, the current first frame rate is 60, and the second frame rate is 50, then according to the setting relationship, the first intermediate frame rate can be obtained F(1)=60*cos(π/K)= 60*cos1=59.99, in a specific embodiment, F'(n)=INT(F(n)) can be obtained through the rounding function INT(x), that is, F'(1)=59 can be used as the first An intermediate frame rate.

Step 203, using the first intermediate frame rate as the new current frame rate, and based on the set correspondence, obtain the next intermediate frame rate corresponding to the new current frame rate until the current frame rate is the same as the second intermediate frame rate. The frame rate difference is within the set range.

As in the above example, the first intermediate frame rate 59 is used as the new current frame rate, and based on the above-mentioned setting correspondence, the next intermediate frame rate (second intermediate frame rate) F corresponding to the new current frame rate is obtained '(2), from F(2)=59.99*cos(2π/K)=59.95, it can be seen that F'(2)=59, the second intermediate frame rate F'(2)=59 is used as the current frame rate, Based on the above correspondence, the next intermediate frame rate corresponding to the current frame rate (the third intermediate frame rate) F'(3)=59 is obtained, and so on until the difference between the current frame rate and the second frame rate of 50 is within the setting range. Wherein, the setting range can be set to 0-1, that is, if the difference between the current frame rate and the second setting value is less than or equal to 1, the execution of obtaining the new current frame based on the setting correspondence is stopped. rate corresponds to the operation of the next intermediate frame rate. For example, if the value of the current intermediate frame rate is 51, the next intermediate frame rate will not be acquired.

Finally, the following intermediate frame rate sequence (unit: HZ) (59, 59, 59, 59, 59, 59, 58, 58, 57, 56, 55, 54, 52, 51) can be obtained.

Step 204. Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.

As in the above example, based on the obtained intermediate frame rate sequence, the frame rate is gradually adjusted from the first frame rate to the second frame rate, that is, the smooth adjustment sequence from the first frame rate of 60HZ to the second frame rate of 50HZ is as follows (unit HZ) (60, 59, 59, 59, 59, 59, 59, 58, 58, 57, 56, 55, 54, 52, 51).

As shown in Figure 5, the intermediate frame rate obtained by setting the relationship according to F(n)=Fs*cos((nπ)/K) has a slow transition process. For example, the first six intermediate frame rates are all 59, and the following The two intermediate frame rates are 58, and then 57, 56, 55, 54, 52, 51. Compared with the linear setting relationship, the frame rate can be adjusted more smoothly, and when the first frame rate is reduced to the second In the process of frame rate, the smoothness is high at the beginning, and then the smoothness gradually decreases, which can achieve the technical effect of high screen fluency and fast frame rate reduction.

In the method provided in this embodiment, by acquiring the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate is greater than the second frame rate, and the first frame rate is used as the current frame rate, based on the setting correspondence between the current frame rate and the intermediate frame rate, obtain the first intermediate frame rate corresponding to the current frame rate, and use the first intermediate frame rate as the new current frame rate, based on the set Determine the corresponding relationship, obtain the next intermediate frame rate corresponding to the new current frame rate, until the difference between the current frame rate and the second frame rate is within the set range, and based on the at least one intermediate frame rate, the obtained The frame rate of the mobile terminal is gradually adjusted from the first frame rate to the second frame rate, which can realize smooth adjustment of the frame rate of the mobile terminal.

FIG. 6 shows a flow chart of a method for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention. As shown in FIG. 6, the method for controlling the frame rate of a mobile terminal provided in this embodiment includes the following steps:

Step 301. Obtain the current first frame rate and the second frame rate to be adjusted of the mobile terminal, where the first frame rate is greater than the second frame rate.

Step 302: Predict the scene type of the mobile terminal during the adjustment process from the first frame rate to the second frame rate according to the set prediction parameters, and the scene types include static picture scenes, low dynamic picture scenes and high dynamic picture scenes. screen scene.

Wherein, the set prediction parameters include the attributes of the currently running application program, the frequency information of the central processing unit (Central Processing Unit, CPU), the load information of the central processing unit, the frequency information of the image processor (Graphic Processing Unit, GPU) and At least one item of load information of the image processor. The attributes of the application program include the identification or type of the application program.

Exemplarily, if the currently running application program is a desktop, the scene type of the mobile terminal during the forecast adjustment process is a static picture scene; The scene type of the mobile terminal is a low dynamic picture scene; if the type of the currently running application program is video or game, the mobile terminal is in a high dynamic picture scene during the prediction adjustment process.

As another example, the load and/or frequency of the central processing unit can be divided into 3 levels, and the load and/or frequency is in the first level, that is, the load and/or frequency is 0 or a smaller operating scenario. The mobile terminal is in a static picture scene; the mobile terminal is in a low dynamic picture scene during the predictive adjustment process under the second-level operating scene; the mobile terminal is in the predictive adjustment process under the third-level operating scene. High dynamic picture scene. Similarly, the load and/or frequency of the image processor can also be divided into three levels, and the scene type of the mobile terminal during the adjustment process is predicted according to the load and/or frequency level of the image processor. It can be understood that, the load and/or frequency level of the central processing unit and the load and/or frequency level of the image processor can also be used to predict the scene type of the mobile terminal during the adjustment process.

Step 303: Acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the smoothing adjustment strategy corresponding to the scene type.

If it is predicted that the mobile terminal is in a static picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes: Using the first frame rate as the current frame rate, using the difference between the current frame rate and the first set value as the first intermediate frame rate; using the first intermediate frame rate as the new current frame rate, setting The difference between the new current frame rate and the first set value is used as the next intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the first set value.

Exemplarily, the first frame rate is 60HZ, the second frame rate is 50HZ, and the first setting value is 3. Take the difference of 57HZ between the first frame rate and the first set value as the first intermediate frame rate; use the first intermediate frame rate as the new current frame rate, and use the difference between the new current frame rate and the first set value The difference of 54HZ is used as the second intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the first set value. Then the intermediate frame rate sequence (unit HZ) can be obtained as (57, 54, 51).

If it is predicted that the mobile terminal is in a low dynamic picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes : use the first frame rate as the current frame rate, use the difference between the current frame rate and the second set value as the first intermediate frame rate; use the first intermediate frame rate as the new current frame rate, The difference between the new current frame rate and the second set value is used as the next intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the second set value.

Exemplarily, the first frame rate is 60HZ, the second frame rate is 50HZ, and the second setting value is 2. Use the difference of 58HZ between the first frame rate and the second set value as the first intermediate frame rate; use the first intermediate frame rate as the new current frame rate, and use the difference between the new current frame rate and the second set value The difference of 56HZ is used as the second intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the second set value. Then the intermediate frame rate sequence (unit HZ) can be obtained as (58, 56, 54, 52).

If it is predicted that the mobile terminal is in a high dynamic picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes : use the first frame rate as the current frame rate, use the difference between the current frame rate and the third set value as the first intermediate frame rate; use the first intermediate frame rate as the new current frame rate, The difference between the new current frame rate and the third set value is used as the next intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the third set value.

Exemplarily, the first frame rate is 60HZ, the second frame rate is 50HZ, and the third set value is 1. Use the difference 59HZ between the first frame rate and the third set value as the first intermediate frame rate; use the first intermediate frame rate as the new current frame rate, and use the difference between the new current frame rate and the third set value The difference 58 is used as the second intermediate frame rate until the difference between the current frame rate and the second frame rate is less than or equal to the third set value. Then the intermediate frame rate sequence (unit: HZ) can be obtained as (59, 58, 57, 56, 55, 54, 53, 52, 51).

Wherein, the first set value, the second set value and the third set value decrease sequentially.

Step 304. Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.

In the method provided in this embodiment, by acquiring the current first frame rate of the mobile terminal and the second frame rate to be adjusted, and predicting the adjustment process from the first frame rate to the second frame rate according to the set prediction parameters, The scene type where the mobile terminal is located, according to the smooth adjustment strategy corresponding to the scene type, acquiring at least one intermediate frame rate between the first frame rate and the second frame rate based on the at least one intermediate frame rate, Gradually adjusting the frame rate of the mobile terminal from the first frame rate to the second frame rate can smoothly adjust the frame rate of the mobile terminal in combination with the scene type of the mobile terminal.

FIG. 7 is a schematic structural diagram of a device for controlling the frame rate of a mobile terminal provided by an embodiment of the present invention. The device can be implemented by software and/or hardware and integrated in the mobile terminal. As shown in FIG. 7 , the device includes a frame rate acquisition module 41 , an intermediate frame rate acquisition module 42 and a frame rate adjustment module 43 .

The frame rate acquiring module 41 is configured to acquire the current first frame rate of the mobile terminal and a second frame rate to be adjusted, the first frame rate being greater than the second frame rate;

The intermediate frame rate acquisition module 42 is configured to acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy;

The frame rate adjustment module 43 is configured to gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate based on the at least one intermediate frame rate.

Further, the intermediate frame rate acquisition module is used for:

Using the first frame rate as the current frame rate, based on the setting correspondence between the current frame rate and the intermediate frame rate, obtaining the first intermediate frame rate corresponding to the current frame rate;

Using the first intermediate frame rate as a new current frame rate, based on the set correspondence, acquire the next intermediate frame rate corresponding to the new current frame rate until the difference between the current frame rate and the second frame rate The difference is within the set range.

Further, the setting relationship between the current frame rate and the intermediate frame rate includes:

F(n)=Fs*cos((nπ)/K); or,

F(n)＝Fs*sin((nπ)/K+π/2)

Wherein, F(n) is an intermediate frame rate, Fs is a current frame rate, K is a set value, n is an initial value of 1, and an increase value is a variable of a set interval value, and the current frame rate is the first frame The rate n is the initial value 1.

Further, the intermediate frame rate acquisition module is used for:

According to the set prediction parameters, during the adjustment process from the first frame rate to the second frame rate, the scene type of the mobile terminal is predicted, and the scene type includes a static picture scene, a low dynamic picture scene and a high dynamic picture scene;

Acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the smoothing adjustment policy corresponding to the scene type.

Further, the set prediction parameters include at least one of the category attribute of the currently running application program, the frequency information of the central processing unit, the load information of the central processing unit, the frequency information of the image processor, and the load information of the image processor item.

Further, if it is predicted that the mobile terminal is in a static picture scene during the adjustment process, the intermediate frame rate acquisition module is used to:

Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the first set value as the first intermediate frame rate;

Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the first set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than the first set value less than or equal to the first set value;

If it is predicted that the mobile terminal is in a low dynamic picture scene during the adjustment process, the intermediate frame rate acquisition module is used for:

Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the second set value as the first intermediate frame rate;

Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the second set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than the second set value less than or equal to the second set value;

If it is predicted that the mobile terminal is in a high dynamic picture scene during the adjustment process, the intermediate frame rate acquisition module is used for:

Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the third set value as the first intermediate frame rate;

Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the third set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than the third set value less than or equal to the third set value;

Wherein, the first set value, the second set value and the third set value decrease sequentially.

Further, the frame rate includes a drawing frame rate of an application program of the mobile terminal, a synthesis frame rate of a synthesis module for synthesizing images, or a refresh rate of a display screen.

The device provided in this embodiment obtains the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate is greater than the second frame rate, and obtains the set smooth adjustment strategy according to the set smoothing adjustment strategy. at least one intermediate frame rate between the first frame rate and the second frame rate, and based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate The above second frame rate can reasonably adjust the frame rate of the mobile terminal.

FIG. 8 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention. The mobile terminal may include a device for controlling the frame rate of the mobile terminal provided in any embodiment of the present invention. As shown in FIG. 8 , the mobile terminal may include: Memory 501, central processing unit (Central Processing Unit, CPU) 502 (also known as processor, hereinafter referred to as CPU), and the memory 501 are used to store executable program codes; the processor 502 reads the memory 501 The executable program code stored in the executable program code is used to run the program corresponding to the executable program code, so as to perform: acquiring the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate greater than the second frame rate; according to the set smooth adjustment strategy, at least one intermediate frame rate between the first frame rate and the second frame rate is obtained; based on the at least one intermediate frame rate, the The frame rate of the mobile terminal is gradually adjusted from the first frame rate to the second frame rate.

The mobile terminal also includes: peripheral interface 503, RF (Radio Frequency, radio frequency) circuit 505, audio circuit 506, speaker 511, power management chip 508, input/output (I/O) subsystem 509, touch screen 512, other Input/control devices 510 and external ports 504 , these components communicate via one or more communication buses or signal lines 507 .

It should be understood that the illustrated mobile terminal 500 is only an example of a mobile terminal, and the mobile terminal 500 may have more or fewer components than those shown in the figure, and two or more components may be combined, Or can have a different component configuration. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

The mobile terminal for controlling the frame rate provided in this embodiment will be described in detail below, and the mobile terminal is a mobile phone as an example.

Memory 501, the memory 501 can be accessed by the CPU 502, the peripheral interface 503, etc., the memory 501 can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more disk storage devices, flash memory devices , or other volatile solid-state storage devices.

Peripheral interface 503 , which can connect the input and output peripherals of the device to CPU 502 and memory 501 .

The I/O subsystem 509 , the I/O subsystem 509 can connect input and output peripherals on the device, such as a touch screen 512 and other input/control devices 510 , to the peripheral interface 503 . I/O subsystem 509 may include a display controller 5091 and one or more input controllers 5092 for controlling other input/control devices 510 . Among them, one or more input controllers 5092 receive electrical signals from or send electrical signals to other input/control devices 510, which may include physical buttons (push buttons, rocker buttons, etc.) ), dials, slide switches, joysticks, click wheels. It should be noted that the input controller 5092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

A touch screen 512, the touch screen 512 is an input interface and an output interface between the user terminal and the user, and displays visual output to the user. The visual output may include graphics, text, icons, videos, and the like.

The display controller 5091 in the I/O subsystem 509 receives electrical signals from the touch screen 512 or sends electrical signals to the touch screen 512 . The touch screen 512 detects the contact on the touch screen, and the display controller 5091 converts the detected contact into an interaction with the user interface object displayed on the touch screen 512, that is, realizes human-computer interaction, and the user interface object displayed on the touch screen 512 can be a running Icons for games, icons for networking to appropriate networks, etc. It is worth noting that the device may also include an optical mouse, which is a touch-sensitive surface that does not display visual output, or that is an extension of a touch-sensitive surface formed by a touchscreen.

The RF circuit 505 is mainly used to establish communication between the mobile phone and the wireless network (that is, the network side), and realize data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving short messages, e-mails, etc. Specifically, the RF circuit 505 receives and sends RF signals, which are also called electromagnetic signals, and the RF circuit 505 converts electrical signals into electromagnetic signals or converts electromagnetic signals into electrical signals, and communicates with communication networks and other devices through the electromagnetic signals to communicate. RF circuitry 505 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC ( COder-DECoder, Codec) Chipset, Subscriber Identity Module (Subscriber Identity Module, SIM) and so on.

The audio circuit 506 is mainly used to receive audio data from the peripheral interface 503 , convert the audio data into electrical signals, and send the electrical signals to the speaker 511 .

The speaker 511 is used to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 505 into sound and play the sound to the user.

The power management chip 508 is used for power supply and power management for the hardware connected to the CPU 502 , the I/O subsystem and the peripheral interface 503 .

The above-mentioned mobile terminal can execute the method provided by any embodiment of the present invention, and has a corresponding functional module for executing the method. By obtaining the current first frame rate of the mobile terminal and the second frame rate to be adjusted, the first frame rate is greater than For the second frame rate, according to the set smooth adjustment strategy, at least one intermediate frame rate between the first frame rate and the second frame rate is obtained, and based on the at least one intermediate frame rate, the The frame rate of the mobile terminal is gradually adjusted from the first frame rate to the second frame rate, so that the frame rate of the mobile terminal can be adjusted reasonably.

The foregoing are only preferred embodiments of the present invention and the applied technical principles. The present invention is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the claims.

Claims (15)

1. A method for controlling the frame rate of a mobile terminal, comprising: Acquiring the current first frame rate of the mobile terminal and a second frame rate to be adjusted, where the first frame rate is greater than the second frame rate; Obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy; Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate. 2. The method according to claim 1, wherein the obtaining at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy comprises: Using the first frame rate as the current frame rate, based on the setting correspondence between the current frame rate and the intermediate frame rate, obtaining the first intermediate frame rate corresponding to the current frame rate; Using the first intermediate frame rate as a new current frame rate, based on the set correspondence, acquire the next intermediate frame rate corresponding to the new current frame rate until the difference between the current frame rate and the second frame rate The difference is within the set range. 3. The method according to claim 2, wherein the setting relationship between the current frame rate and the intermediate frame rate comprises: F(n)=Fs*cos((nπ)/K); or, F(n)＝Fs*sin((nπ)/K+π/2) Wherein, F(n) is an intermediate frame rate, Fs is a current frame rate, K is a set value, n is an initial value of 1, and an increase value is a variable of a set interval value, and the current frame rate is the first frame The rate n is the initial value 1. 4. The method according to claim 1, wherein the obtaining at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy comprises: According to the set prediction parameters, during the adjustment process from the first frame rate to the second frame rate, the scene type of the mobile terminal is predicted, and the scene type includes a static picture scene, a low dynamic picture scene and a high dynamic picture scene; Acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the smoothing adjustment policy corresponding to the scene type. 5. The method according to claim 4, wherein the set prediction parameters include the attributes of the currently running application program, the frequency information of the central processing unit, the load information of the central processing unit, and the frequency information of the image processor and at least one item of load information of the image processor. 6. The method according to claim 4, characterized in that: If it is predicted that the mobile terminal is in a static picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes: Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the first set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the first set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the first set value; If it is predicted that the mobile terminal is in a low dynamic picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes : Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the second set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the second set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the second set value; If it is predicted that the mobile terminal is in a high dynamic picture scene during the adjustment process, then according to the smooth adjustment strategy corresponding to the scene type, obtaining at least one intermediate frame rate between the first frame rate and the second frame rate includes : Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the third set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the third set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the third set value; Wherein, the first set value, the second set value and the third set value decrease sequentially. 7. The method according to any one of claims 1-6, wherein the frame rate includes the drawing frame rate of the application program of the mobile terminal, the synthesis frame rate of the synthesis module for synthesizing pictures, or the frame rate of the display screen. refresh rate. 8. A device for controlling the frame rate of a mobile terminal, comprising: A frame rate acquisition module, configured to acquire the current first frame rate of the mobile terminal and a second frame rate to be adjusted, the first frame rate being greater than the second frame rate; An intermediate frame rate acquisition module, configured to acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy; A frame rate adjustment module, configured to gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate based on the at least one intermediate frame rate. 9. The device according to claim 8, wherein the intermediate frame rate acquisition module is used for: Using the first frame rate as the current frame rate, based on the setting correspondence between the current frame rate and the intermediate frame rate, obtaining the first intermediate frame rate corresponding to the current frame rate; Using the first intermediate frame rate as a new current frame rate, based on the set correspondence, acquire the next intermediate frame rate corresponding to the new current frame rate until the difference between the current frame rate and the second frame rate The difference is within the set range. 10. The device according to claim 9, wherein the setting relationship between the current frame rate and the intermediate frame rate comprises: F(n)=Fs*cos((nπ)/K); or, F(n)＝Fs*sin((nπ)/K+π/2) Wherein, F(n) is an intermediate frame rate, Fs is a current frame rate, K is a set value, n is an initial value of 1, and an increase value is a variable of a set interval value, and the current frame rate is the first frame The rate n is the initial value 1. 11. The device according to claim 8, wherein the intermediate frame rate acquisition module is used for: According to the set prediction parameters, during the adjustment process from the first frame rate to the second frame rate, the scene type of the mobile terminal is predicted, and the scene type includes a static picture scene, a low dynamic picture scene and a high dynamic picture scene; Acquire at least one intermediate frame rate between the first frame rate and the second frame rate according to the smoothing adjustment policy corresponding to the scene type. 12. The device according to claim 11, wherein the set prediction parameters include attributes of currently running application programs, frequency information of the central processing unit, load information of the central processing unit, and frequency information of the image processor and at least one item of load information of the image processor. 13. The device of claim 11, wherein: If it is predicted that the mobile terminal is in a static picture scene during the adjustment process, the intermediate frame rate acquisition module is used for: Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the first set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the first set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the first set value; If it is predicted that the mobile terminal is in a low dynamic picture scene during the adjustment process, the intermediate frame rate acquisition module is used for: Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the second set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the second set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the second set value; If it is predicted that the mobile terminal is in a high dynamic picture scene during the adjustment process, the intermediate frame rate acquisition module is used for: Using the first frame rate as the current frame rate, and using the difference between the current frame rate and the third set value as the first intermediate frame rate; Use the first intermediate frame rate as the new current frame rate, use the difference between the new current frame rate and the third set value as the next intermediate frame rate, until the difference between the current frame rate and the second frame rate less than or equal to the third set value; Wherein, the first set value, the second set value and the third set value decrease sequentially. 14. The device according to any one of claims 8-13, wherein the frame rate includes the drawing frame rate of the application program of the mobile terminal, the synthesis frame rate of the synthesis module used for synthesizing pictures, or the frame rate of the display screen. refresh rate. 15. A mobile terminal, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor implements the following steps when executing the computer program: Acquiring the current first frame rate of the mobile terminal and a second frame rate to be adjusted, where the first frame rate is greater than the second frame rate; Obtain at least one intermediate frame rate between the first frame rate and the second frame rate according to the set smooth adjustment strategy; Based on the at least one intermediate frame rate, gradually adjust the frame rate of the mobile terminal from the first frame rate to the second frame rate.