CN109157839B - Frame rate regulation and control method, device, storage medium and terminal - Google Patents

Abstract

The embodiment of the application discloses a frame rate regulation and control method, a frame rate regulation and control device, a storage medium and a terminal. The method comprises the steps of detecting that a frame rate regulation event is triggered; acquiring an average frame rate and a frame interval standard deviation of a target application in target sampling time; and when the frame interval standard deviation meets a preset condition, adjusting the system frame rate to the average frame rate. By adopting the technical scheme, the average frame rate and the frame interval standard deviation of the target application in the target sampling time can be calculated in advance, whether the system frame rate is adjusted to the average frame rate of the target application is judged based on the frame interval standard deviation, the adjustment of the system frame rate based on historical frame rate information is realized to provide a personalized frame rate adjusting and controlling scheme, the use habit of a user is effectively adapted, and the method and the device are easy to popularize to other intelligent terminals.

Description

Frame rate control method, device, storage medium and terminal

technical field

The embodiments of the present application relate to the technical field of terminals, and in particular, to a frame rate control method, apparatus, storage medium, and terminal.

Background technique

With the development of technology, the processing capability and function of smart terminals have been greatly improved, and they have become a necessity for people's life, work and entertainment. In an intelligent terminal installed with an operating system, the intelligent terminal presents various display images at different times by constantly refreshing the display images.

The display refresh process in a smart terminal such as a mobile phone mainly includes a screen drawing operation, a screen synthesis operation and a display operation. Taking applications such as games or videos as an example, based on the synchronous (Vsync) refresh mechanism, the system performs a Render operation to draw their respective images; after all applications complete the Render operation, the system performs a Compose operation to The images drawn by each application are combined into a display frame; then, the display frame is output to the screen for final display. However, the intelligent terminal in the related art has defects in frame rate regulation. For example, the frame rate is dynamically adjusted in the form of a whitelist. For each application, the control strategy is fixed and the versatility is not strong.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a frame rate control method, device, storage medium and terminal, which can optimize the frame rate control scheme in the related art.

In a first aspect, an embodiment of the present application provides a frame rate control method, including:

It is detected that the frame rate control event is triggered;

Obtain the average frame rate and frame interval standard deviation of the target application within the target sampling time;

When the standard deviation of the frame interval satisfies a preset condition, the system frame rate is adjusted to the average frame rate.

In a second aspect, an embodiment of the present application also provides a frame rate control device, the device comprising:

The event detection module is used to detect that the frame rate control event is triggered;

The average frame rate acquisition module is used to acquire the average frame rate and frame interval standard deviation of the target application within the target sampling time;

A system frame rate adjustment module, configured to adjust the system frame rate to the average frame rate when the standard deviation of the frame interval satisfies a preset condition.

In a third aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the frame rate control method described in the embodiment of the present application.

In a fourth aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a computer program that is stored in the memory and can be run on the processor, and the processor executes the computer program to achieve the same implementation as the embodiment of the present application. The frame rate control method.

The embodiment of the present application provides a frame rate control scheme. If it is detected that a frame rate control event is triggered, the average frame rate and frame interval standard deviation of the target application within the target sampling time are obtained; when the frame interval standard deviation satisfies a preset When conditions are met, adjust the system frame rate to the above average frame rate. By adopting the above technical solution, the average frame rate and frame interval standard deviation of the target application within the target sampling time can be pre-calculated, and based on the frame interval standard deviation, it is judged whether to adjust the system frame rate to the average frame rate of the target application. The historical frame rate information adjusts the system frame rate to provide a personalized frame rate control scheme, which effectively adapts to the user's usage habits and is easy to extend to other smart terminals.

Description of drawings

1 is a flowchart of a frame rate control method provided by an embodiment of the present application;

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

FIG. 2b is a schematic diagram of a Vsync display refresh mechanism provided by an embodiment of the present invention

3 is a flowchart of another frame rate control method provided by an embodiment of the present application;

4 is a structural block diagram of a frame rate control device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application;

FIG. 6 is a structural block diagram of a smart phone according to an embodiment of the present application.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all the structures related to the present application.

Before discussing the exemplary embodiments in greater detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowchart depicts the steps as a sequential process, many of the steps may be performed in parallel, concurrently, or concurrently. Furthermore, the order of the steps can be rearranged. The process may be terminated when its operation is complete, but may also have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

FIG. 1 is a flowchart of a frame rate control method provided by an embodiment of the present application. The method may be executed by a frame rate control apparatus, wherein the apparatus may be implemented by software and/or hardware, and may generally be integrated in a terminal. As shown in Figure 1, the method includes:

Step 110, it is detected that the frame rate control event is triggered.

Exemplarily, the terminal in this embodiment of the present application may include a mobile phone, a tablet computer, a notebook computer, a computer, a handheld game console, a smart home appliance, and other devices that are provided with an operating system. The type of the operating system is not limited in the embodiments of the present application, and may include, for example, an Android (Android) operating system, a Windows (Windows) operating system, and an Apple (ios) operating system, and so on.

It should be noted that, when the target application starts or ends, setting information will be sent to the background service of the operating system, and when the setting information is detected, a frame rate control event will be triggered. The target application may be an application currently started and running on the terminal. It can be understood that the target application may be any application installed on the terminal. For example, the target application may be a third-party game application installed in the terminal. After the third-party game is connected to the background service, the corresponding scene ID will be issued when the game starts or ends. The scene ID is a unique identifier used to indicate the start or end of the game, which may be a number or a combination of letters and numbers. The opening of the game application and the closing of the game application correspond to different scene IDs, that is, corresponding to different characters.

The background service may be a background daemon process preset in the terminal by the terminal manufacturer to optimize performance/power consumption, and may be a Daemon program or the like. The Daemon() program is a server-side program that runs all the time, also known as a daemon process. It usually runs in the background of the system, without a controlling terminal, and does not interact with the foreground. The Daemon program is generally used as a system service.

Taking a game application as an example, when the scene ID issued when the game application starts is detected, a frame rate control event is triggered. If the scene ID corresponding to the application can be obtained, the scene ID is compared with the ID standard characters corresponding to the application. If the scene ID is an ID standard character under the application program that indicates the start of the application, it is determined that the scene ID issued when the game application starts is detected, and accordingly, a frame rate adjustment event is triggered to instruct the terminal to perform an operation related to system frame rate adjustment.

In the embodiment of the present application, it is also possible to first count the game information of the preset game to form a sample space, which is used to calculate the average frame rate and the standard deviation of the frame interval. rate control events. Among them, the game from the end of loading to the end of the game returning to the game lobby can be called a round, and the game information of the preset round game obtained by statistics can constitute a sample space. It is understandable that for the game application corresponding to the sample space, even if the scene ID issued at the start of the game application is detected, the frame rate control event will not be triggered, but the frame rate related parameters of the official game are calculated, such as the reference average frame rate and Frame interval reference standard deviation.

It should be noted that, for different third-party games, the definition of a game may be different, which is related to the definition of the third-party game. For example, for games such as the glory of the king or the exciting battlefield, the start and end of a game can be from the end of loading to the end of the game and returning to the game lobby.

It should be noted that there are many ways to trigger the frame rate control event, which are not specifically limited in the embodiment of the present application. For example, when the scene identifier is a preset open identifier, the background server notifies Surface Flinger to start the calculation operation of the average frame rate and the standard deviation of the frame interval. Frame rate control events can be triggered by notifications sent by the background server to Surface Flinger. For another example, when the number of running games of the game exceeds the preset threshold, if the scene ID issued when the game is connected to the background service is detected again, a frame rate adjustment event is triggered, and so on.

Step 120: Obtain the average frame rate and frame interval standard deviation of the target application within the target sampling time.

The target sampling time may be a preset time period, or may be a set of time intervals corresponding to the start and end of the target application for a preset number of times. For example, the target sampling time is 50 hours. For another example, the target sampling time is the time interval from start to end of each target application, and a set of the above-mentioned time intervals of a preset number of times is taken as the target sampling time, or the sum of the above-mentioned time intervals is taken as the target sampling time.

Optionally, the target sampling time can also be the time period between the time when a certain function in the target application is turned on and the time when the function is turned off, or the time period for any period of time when the target application is turned on. Of course, The target running time period may also be a time period between the start time and the end time of the target application running a certain script or a certain copy, which is not specifically limited in this embodiment of the present invention.

Taking a game application as an example, the average frame rate can be determined according to the number of frames and the time interval in the time interval corresponding to each opening to closing of the target application within the target sampling time. The number of frames refers to the number of frames generated, that is, the number of frames processed and displayed within a period of time, and a frame may refer to a still image. For example, the number of frames in the time interval corresponding to each game in the target sampling time is counted, and the reference average frame rate of each game is determined according to the ratio of the number of frames to the time interval. Then, according to the number of rounds of the game corresponding to the target sampling time, the average frame rate is determined according to the reference average frame rate and the number of rounds. Calculate the frame interval standard deviation based on the standard deviation formula based on the average frame rate. For example, the average frame rate is 50, and the frame rate of each frame in the target sampling time interval (the derivative of the time from drawing, compositing and displaying each frame can be used as the frame rate of the frame) is 50, 52, and 50 respectively. , 50, 53, 50, 52, 49, 50, 50, 49 and 45, the formula for the standard deviation of the frame interval is as follows:

Exemplarily, outside the target sampling time, each time the target application is started, the average frame rate and frame interval standard deviation of the target application within the target sampling time are acquired. Taking a game as an example, the target sampling time may be the time of 10 games, that is, the sample data in the sample space is 10 groups. When the scene ID issued when the game application is opened and the scene ID issued at the end of the game application are detected, it is considered that a game has been detected, the number of frames in the game time interval of the game is obtained, and the frame number and time interval corresponding to the game are used as For samples in the sample space, the reference average frame rate and frame interval reference standard deviation are calculated according to the frame number and time interval. Calculate the average frame rate and frame interval standard deviation of 10 games based on the reference average frame rate and frame interval reference standard deviation of each game, and save them. If the scene ID issued when the game application is started is detected again, the above game information (including the average frame rate and frame interval standard deviation) is obtained from the storage location of the average frame rate and frame interval standard deviation.

Step 130: When the standard deviation of the frame interval satisfies a preset condition, adjust the system frame rate to the average frame rate.

It should be noted that, if the standard deviation of the frame interval is the average value of the reference standard deviation of the frame interval in the time interval when the target application is started and ended, then when the standard deviation of the frame interval exceeds the preset threshold, the standard deviation of the frame interval is determined. meet the preset conditions. If the frame interval standard deviation is the set of frame interval reference standard deviations in the time intervals when the target application is started and terminated, then when at least one frame interval standard deviation exceeds the preset threshold, it is determined that the frame interval standard deviation satisfies the preset condition , the amount by which the standard deviation of the frame interval exceeds the preset threshold may be specified according to actual needs, as the threshold for determining whether the preset condition is met.

It should be noted that the system frame rate can also be called the frame rate of Surface Flinger (layer synthesis module).

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

First of all, in the application layer, each application (hereinafter referred to as application or APP) contains one or more layers, and each application APP1, APP2...APPN is designed according to its own application (generally by the corresponding installation package APK) decision) to perform the layer rendering (Render) operation (that is, to draw the image on the layer) separately, and after the rendering operation processing is completed, each application sends all the drawn layers to the layer composition that performs the layer composition operation. Module (SurfaceFlinger).

Then, in the application framework (Framework) layer, all layers (including visible layers and invisible layers) form a layer list, which is defined as ListAll. The layer synthesis module selects the visible layers from ListAll to form a visible layer list, which is defined as DisplayList. Then, the layer synthesis module finds an idle FB from the three recyclable frame buffers (FrameBuffer, BF or buffer for short) in the system, and on the idle FB, according to the application configuration information, such as which The layer should be bottomed, which layer should be topped, which area is the visible area, which area is the transparent area, etc. Through the Compose operation, the layers contained in the DisplayList are superimposed together to get the final image to be displayed. .

Finally, at the Kernel layer, the picture to be displayed can be transmitted to the display hardware (including the display controller and the display screen, 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 can be It is a Liquid Crystal Display (LCD).

In addition, the Android system introduces a synchronous (Vsync) refresh mechanism in the display refresh process. FIG. 2b is 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", that is, a 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 each layer drawing operation and graphics. Layer synthesis operations need to be completed according to the heartbeat, so that the key steps in the entire display process are incorporated into the unified management mechanism of Vsync. The frequency of the Vsync signal is currently 60Hz. As shown in Figure 2b, assuming that the Vsync signal period is T, regardless of the transmission delay of the signal, after the first Vsync signal Vsync1 reaches the CPU, the CPU forwards the first Vsync signal Vsync1 to each application, and each application responds to the user's display on the display screen. After each application completes the drawing operation, multiple layers drawn by each application are obtained. After the second Vsync signal Vsync2 reaches the CPU, the CPU forwards the second Vsync signal Vsync2 to the layer compositing module, and the layer compositing module starts to perform the layer compositing operation, synthesizing multiple layers drawn by each application to generate screen to be displayed. After the third Vsync signal Vsync3 reaches the CPU, the system starts to perform display refresh, and finally displays the to-be-displayed picture on the display screen. It can be seen from the above description that the frequency of the Vsync signal received by the application program, the layer synthesis module and the display screen is the same, and is a preset fixed value.

Exemplarily, if the standard deviation of the frame interval satisfies the preset condition, the background service is used to notify Surface Flinger to adjust the Vsync signal of the system, so that the system frame rate is fixed to the average frame rate.

In the technical solutions of the embodiments of the present application, if it is detected that a frame rate control event is triggered, the average frame rate and frame interval standard deviation of the target application within the target sampling time are obtained; when the frame interval standard deviation satisfies a preset condition, Adjust the system frame rate to the above average frame rate. By adopting the above technical solution, the average frame rate and frame interval standard deviation of the target application within the target sampling time can be pre-calculated, and based on the frame interval standard deviation, it is judged whether to adjust the system frame rate to the average frame rate of the target application. The historical frame rate information adjusts the system frame rate to provide a personalized frame rate control scheme, which effectively adapts to the user's usage habits and is easy to extend to other smart terminals.

In some examples, detecting that a frame rate adjustment event is triggered may be performed by the following steps, that is, detecting a scene identifier corresponding to the target application; judging whether the scene identifier is a preset open identifier, and if so, triggering a frame rate adjustment event. By adopting the above technical solution, a frame rate control event can be triggered when the target application is started, so as to avoid the situation that the frame rate is unstable due to the adjustment of the system frame rate during the running of the game. For example, a game application includes high, medium and low frame rates to choose from. If the user selects a high frame rate, the system frame rate will be used to draw and display the picture at the frame rate. After running for a period of time, adjusting the system frame rate to the average frame rate will cause the frame rate to be unstable when switching occurs and affect the smoothness of the game.

In still other examples, before triggering a frame rate control event, the method further includes: recording the number of times the target application is opened; when the number of times is less than a preset sampling number, determining the corresponding number of times each time the target application is opened to end the reference average frame rate and frame interval reference standard deviation in the time interval; when the number of times is equal to the preset sampling times, the average frame rate is determined according to the reference average frame rate, and the reference standard deviation is based on the frame interval The frame interval standard deviation is determined. By adopting the above technical solution, the running data of the target application in the target time can be inspected in advance, and the reference frame rate and frame interval standard deviation of each target application running time can be calculated based on the running data, and then based on this, the running data in the target time interval can be calculated. Average frame rate and frame interval standard deviation. Based on the standard deviation of the frame interval in the target time interval, it is determined whether to adjust the system frame rate of the subsequent running of the target application, so that the dynamic adjustment of the frame rate can be more adapted to the user's usage habits.

In other examples, after adjusting the system frame rate to the average frame rate, the method further includes:

If it is detected that the scene identifier corresponding to the target application is the preset end identifier, the system frame rate is adjusted to the default frame rate by adjusting the frame synchronization information, so that during the running process of the target application, the corresponding However, after the target application ends, the system frame rate is not necessarily applicable to other applications, and the system frame rate needs to be restored to the value before the frame rate adjustment. By adopting the above technical solution, the system frame rate can be adjusted to the average frame rate corresponding to the target application during the running of the target application, and the system frame rate can be restored to the default system frame rate of the terminal after the running of the target application, so as to avoid running other applications. When the frame rate does not match and the display quality is affected, the display is smoother.

FIG. 3 is a flowchart of another frame rate control method provided by an embodiment of the present application. As shown in FIG. 3 , the method includes:

Step 301: Detect the scene identifier corresponding to the target application.

It should be noted that the scene identifier, that is, the scene ID, is used to represent the unique identifier of the game start or the end of the game. The target application can be a system default application, such as some game applications (which can be determined by analyzing historical usage data), or an application selected by the user according to actual needs. For example, when a user installs a third-party application, the application is marked as a target application, and the target application can be stored through a whitelist.

Exemplarily, when detecting that the target application is running, a background server (eg, a daemon process) acquires the scene identifier issued by the target application.

Step 302: When the scene identifier is a preset opening identifier, obtain the number of times the target application is opened.

It should be noted that each time it is detected that the scene identifier of the target application is the corresponding opening identifier, the number of times of opening the target application is increased by 1 to obtain the latest opening times of the target application, and the latest opening times are regarded as the opening times of the target application.

Step 303 , judging whether the number of times is less than the preset number of sampling times, if so, go to step 304 , otherwise, go to step 305 .

It should be noted that the preset sampling times are defaulted by the system, or can be set by the user according to actual needs.

Step 304: Determine the reference average frame rate and frame interval reference standard deviation within the time interval corresponding to each time the target application is started to end.

Exemplarily, when the first scene ID issued when the game application starts and the second scene ID issued when the game application ends, it is determined that the game application is detected from the start to the end, and the first scene ID is detected until the detection is completed. The time period to the second scene ID is recorded as the time period corresponding to the start of the game application to the end of the game application. Get the number of frames in the time interval corresponding to each time the game application is opened to the end. The sample space can be formed according to the number of frames and the time period in the time interval corresponding to each opening to the end. According to the number of frames and the corresponding time interval, the reference average frame rate and the reference standard deviation of the frame interval in the time interval corresponding to each target application starting to ending are determined.

Step 305 , determine whether the number of times is equal to the preset number of sampling times, if so, go to step 306 , otherwise go to step 307 .

Step 306: Determine the average frame rate according to the reference average frame rate, and determine the frame interval standard deviation according to the frame interval reference standard deviation.

Exemplarily, if the game application is installed for the first time, after the game application is connected to the background server, the game information of 10 rounds of the game application is recorded, and 10 reference average frame rates and 10 frame interval reference standard deviations are obtained. Calculate the average of 10 reference average frame rates as the average frame rate. In addition, the average of the 10 frame interval reference standard deviations is calculated as the frame interval standard deviation.

Step 307: It is determined that the number of times is greater than the preset number of sampling times, and a frame rate regulation event is triggered.

Step 308: Determine whether the standard deviation of the frame interval exceeds a preset threshold, if yes, go to Step 309, otherwise, go to Step 311.

Step 309: Adjust the system frame rate to the average frame rate by adjusting the frame synchronization information.

It should be noted that the frame synchronization information includes the Vsync signal. Accordingly, adjusting the frame synchronization information may be the adjustment of the Vsync signal, thereby realizing the adjustment of parameters related to frame display, such as the drawing frame rate, the composite frame rate, and the refresh rate.

When the standard deviation of the frame interval exceeds the preset threshold, the background service operator informs Surface Flinger to switch the VSYNC model of the system, so that Surface Flinger receives Vsync signals of different frequencies.

Step 310: If it is detected that the scene identifier corresponding to the target application is a preset end identifier, adjust the system frame rate to the default frame rate by adjusting the frame synchronization information.

It should be noted that the default frame rate can be understood as the value of the frame rate before switching the system frame rate to the average frame rate.

In the embodiment of the present application, if the system frame rate is fixed as the average frame rate of the game application, after the game application exits, the system frame rate is restored to the default frame rate of the terminal, that is, the frame rate before the system frame rate adjustment , or think of it as the frame rate before the game app was run.

Step 311: Keep the system frame rate unchanged.

It should be noted that keeping the system frame rate unchanged may mean keeping the system frame rate unchanged at the default frame rate.

The technical solution of this embodiment determines the reference average frame rate and frame interval reference standard deviation of each game application running time based on the number of frames and the time in the running time interval of each game application in the sample space, and then determines the target during the sampling time. The average frame rate and frame interval standard deviation of the application. Determine whether the system frame rate needs to be fixed according to the comparison result between the standard deviation of the frame interval and the preset threshold. If necessary, the background service will notify Surface Flinger to switch the system frame rate to realize system-level frame rate control, which can effectively adapt to the user's use. Compared with the whitelist-based dynamic frame rate control scheme in the related art, it has higher intelligence and is easy to be extended to other intelligent terminals.

FIG. 4 is a structural block diagram of a frame rate control device provided by an embodiment of the present application. The device can be implemented by software and/or hardware, and is generally integrated in a terminal. The frame rate control method can be executed to dynamically control the system when the system is running. Frame rate control. As shown in Figure 4, the device includes:

an event detection module 410, configured to detect that a frame rate regulation event is triggered;

an average frame rate obtaining module 420, configured to obtain the average frame rate and frame interval standard deviation of the target application within the target sampling time;

The system frame rate adjustment module 430 is configured to adjust the system frame rate to the average frame rate when the frame interval standard deviation satisfies a preset condition.

An embodiment of the present application provides a frame rate control device. If it is detected that a frame rate control event is triggered, the average frame rate and frame interval standard deviation of the target application within the target sampling time are obtained; When setting conditions, adjust the system frame rate to the above average frame rate. By adopting the above technical solution, the average frame rate and frame interval standard deviation of the target application in the target sampling time can be pre-calculated to form a sample space, and based on the frame interval standard deviation in the sample space, it is judged whether to adjust the system frame rate to the target application's standard deviation. The average frame rate, which adjusts the system frame rate based on the historical frame rate information to provide a personalized frame rate control scheme, effectively adapts to the user's usage habits, and is easy to extend to other smart terminals.

Optionally, the event detection module 410 is specifically used for:

Detect the scene identifier corresponding to the target application;

When the scene identifier is a preset open identifier, a frame rate regulation event is triggered.

Optionally, the target sampling time includes a time interval corresponding to the target application starting to ending.

Optionally, also include:

A number of times recording module, used to record the number of times the target application is opened before triggering a frame rate control event;

a reference frame rate calculation module, configured to determine the reference average frame rate and frame interval reference standard deviation within the time interval corresponding to each time the target application is started to end when the number of times is less than the preset sampling times;

A frame rate calculation module, configured to determine the average frame rate according to the reference average frame rate when the number of times is equal to a preset sampling number, and determine the frame interval standard deviation according to the frame interval reference standard deviation.

Optional, frame rate calculation module, specifically used for:

Acquire the number of frames in the time interval corresponding to each time the target application is opened to end;

According to the frame number and the time interval, a reference average frame rate and a frame interval reference standard deviation in a time interval corresponding to each time the target application is started to end is determined.

Optionally, the system frame rate adjustment module 430 is specifically used for:

If the standard deviation of the frame interval within the target sampling time exceeds a preset threshold, the system frame rate is adjusted to the average frame rate by adjusting frame synchronization information.

Optionally, also include:

The frame rate recovery module is used to adjust the system frame rate to the average frame rate, if it is detected that the scene identifier corresponding to the target application is a preset end identifier, then the system frame rate is adjusted by adjusting the frame synchronization information. The frame rate is adjusted to the default frame rate.

Embodiments of the present application also provide a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute a frame rate control method when executed by a computer processor, and the method includes:

It is detected that the frame rate control event is triggered;

Obtain the average frame rate and frame interval standard deviation of the target application within the target sampling time;

When the standard deviation of the frame interval satisfies a preset condition, the system frame rate is adjusted to the average frame rate.

storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc. ; non-volatile memory, such as flash memory, magnetic media (eg hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a second, different computer system connected to the first computer system through a network such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations (eg, in different computer systems connected by a network). The storage medium may store program instructions (eg, embodied as a computer program) executable by one or more processors.

Of course, a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the frame rate control operations described above, and can also perform frame rate control provided by any embodiment of the present application. related operations in the method.

The embodiment of the present application provides a terminal, the terminal has an operating system, and the frame rate control apparatus provided by the embodiment of the present application can be integrated in the terminal. The terminal may be a smart phone, a PAD (tablet computer), a handheld game console, a smart TV, or the like. FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 5 , the terminal includes a memory 510 and a processor 520 . The memory 510 is used to store the computer program, the average frame rate and frame interval standard deviation corresponding to the target application, etc.; the processor 520 reads and executes the computer program stored in the memory 510 . The processor 520 implements the following steps when executing the computer program: detecting that a frame rate regulation event is triggered; acquiring the average frame rate and frame interval standard deviation of the target application within the target sampling time; When the preset conditions are met, the system frame rate is adjusted to the average frame rate.

The memories and processors listed in the above examples are all parts of the terminal, and the terminal may also include other components. Taking a smart phone as an example, the possible structure of the above-mentioned terminal will be described. FIG. 6 is a structural block diagram of a smart phone according to an embodiment of the present application. As shown in FIG. 6 , the smart phone may include: a memory 601, a central processing unit (CPU) 602 (also known as a processor, hereinafter referred to as CPU), a peripheral interface 603, an RF (RadioFrequency, radio frequency) circuit 605, Audio circuitry 606, speakers 611, touch screen 612, power management chip 608, input/output (I/O) subsystem 609, other input/control devices 610, and external ports 604 through one or more communication buses or signal lines 607 to communicate.

It should be understood that the illustrated smartphone 600 is merely an example of a terminal, and that the smartphone 600 may have more or fewer components than those shown, two or more components may be combined, or Different component configurations are possible. 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 following is a detailed description of the smartphone integrated with the frame rate control device provided in this embodiment.

Memory 601, which can be accessed by CPU 602, peripheral interface 603, etc., said memory 601 can include high-speed random access memory, and can also include non-volatile memory, such as one or more disk storage devices, flash memory devices , or other volatile solid-state storage devices. A computer program is stored in the memory 601, and a preset file, a preset whitelist, and the like can also be stored.

A peripheral interface 603 that can connect the input and output peripherals of the device to the CPU 602 and the memory 601 .

I/O subsystem 609 , which can connect input and output peripherals on the device, such as touch screen 612 and other input/control devices 610 , to peripherals interface 603 . The I/O subsystem 609 may include a display controller 6091 and one or more input controllers 6092 for controlling other input/control devices 610 . Wherein, one or more input controllers 6092 receive electrical signals from or send electrical signals to other input/control devices 610, which may include physical buttons (push buttons, rocker buttons, etc. ), dial pad, slide switch, joystick, click wheel. Notably, the input controller 6092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

The touch screen 612, which is an input interface and an output interface between the user terminal and the user, displays visual output to the user, and the visual output may include graphics, text, icons, videos, and the like.

Display controller 6091 in I/O subsystem 609 receives electrical signals from touch screen 612 or sends electrical signals to touch screen 612 . The touch screen 612 detects the contact on the touch screen, and the display controller 6091 converts the detected contact into interaction with the user interface object displayed on the touch screen 612, that is, to realize human-computer interaction, and the user interface object displayed on the touch screen 612 can be run. Icons for games, icons for connecting to the corresponding network, etc. It is worth noting that the device may also include a light mouse, which is a touch-sensitive surface that does not display visual output, or an extension of the touch-sensitive surface formed by a touch screen.

The RF circuit 605 is mainly used to establish the communication between the mobile phone and the wireless network (ie, the network side), and realize the data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving text messages, e-mails, etc. Specifically, the RF circuit 605 receives and transmits RF signals, also known as electromagnetic signals, the RF circuit 605 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 605 may include known circuitry for performing these functions including, but not limited to, antenna systems, RF transceivers, one or more amplifiers, tuners, one or more oscillators, digital signal processors, CODECs ( COder-DECoder, codec) chip set, subscriber identity module (Subscriber Identity Module, SIM) and so on.

The audio circuit 606 is mainly used for receiving audio data from the peripheral interface 603 , converting the audio data into an electrical signal, and sending the electrical signal to the speaker 611 .

The speaker 611 is used to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 605 to sound and play the sound to the user.

The power management chip 608 is used for power supply and power management for the hardware connected to the CPU 602, the I/O subsystem and the peripheral interface.

The terminal provided by the embodiment of the present application can pre-calculate the average frame rate and frame interval standard deviation of the target application within the target sampling time, and determine whether to adjust the system frame rate to the average frame rate of the target application based on the frame interval standard deviation, The system frame rate is adjusted based on the historical frame rate information to provide a personalized frame rate control scheme, which effectively adapts to the user's usage habits and is easy to be extended to other smart terminals.

The frame rate control device, storage medium and terminal provided in the above embodiments can execute the frame rate control method provided by any embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For technical details not described in detail in the foregoing embodiments, reference may be made to the frame rate control method provided by any embodiment of the present application.

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

Claims (9)

1. a frame rate control method, is characterized in that, comprises: It is detected that the frame rate control event is triggered; Obtain the average frame rate and frame interval standard deviation of the target application within the target sampling time, where the target application is the application currently started and run by the terminal; Each time the target application is started, the average frame rate and frame interval standard deviation of the target application within the target sampling time are obtained, the scene identifier issued when it is detected that the target application is started, and the scene issued at the end When identifying, the number of frames in the sampling time interval of the target application is obtained, the corresponding frame number and time interval in the sampling time interval are taken as samples in the sample space, and the reference average frame rate and the time interval are calculated according to the frame number and time interval. Frame interval reference standard deviation, calculate the average frame rate and frame interval standard deviation of the preset sampling times according to the reference average frame rate and frame interval reference standard deviation, and save them. The storage location of frame rate and frame interval standard deviation obtains the above sampling information; Each time it is detected that the scene identifier of the target application is the corresponding opening identifier, the number of opening times of the target application is increased by 1 to obtain the latest opening times of the target application, and the latest opening times are regarded as the opening times of the target application. If the number of times is greater than the preset number of sampling times, a frame rate adjustment event is triggered; When the frame interval standard deviation satisfies a preset condition, adjusting the system frame rate to the average frame rate; The target sampling time includes a time interval corresponding to the target application starting to ending. 2. The method according to claim 1, wherein detecting that a frame rate control event is triggered, comprising: Detect the scene identifier corresponding to the target application; When the scene identifier is a preset open identifier, a frame rate regulation event is triggered. 3. method according to claim 1, is characterized in that, before triggering frame rate regulation event, also comprises: Record the number of times the target application is opened; When the number of times is less than the preset number of sampling times, determine the reference average frame rate and frame interval reference standard deviation within the time interval corresponding to each time the target application is started to end; When the number of times is equal to a preset number of sampling times, the average frame rate is determined according to the reference average frame rate, and the frame interval standard deviation is determined according to the frame interval reference standard deviation. 4. The method according to claim 3, wherein determining the reference average frame rate and frame interval reference standard deviation in the time interval corresponding to each time the target application is started to end, comprising: Acquire the number of frames in the time interval corresponding to each time the target application is opened to end; According to the frame number and the time interval, a reference average frame rate and a frame interval reference standard deviation in a time interval corresponding to each time the target application is started to end is determined. 5. The method according to claim 3, wherein when the frame interval standard deviation satisfies a preset condition, adjusting the system frame rate to the average frame rate, comprising: If the standard deviation of the frame interval within the target sampling time exceeds a preset threshold, the system frame rate is adjusted to the average frame rate by adjusting frame synchronization information. 6. The method according to any one of claims 1 to 5, wherein after adjusting the system frame rate to the average frame rate, the method further comprises: If it is detected that the scene identifier corresponding to the target application is the preset end identifier, the system frame rate is adjusted to the default frame rate by adjusting the frame synchronization information. 7. A frame rate control device, characterized in that, comprising: The event detection module is used to detect that the frame rate control event is triggered; an average frame rate acquisition module, used for acquiring the average frame rate and frame interval standard deviation of the target application within the target sampling time, where the target application is an application program currently started and running by the terminal; a system frame rate adjustment module, configured to adjust the system frame rate to the average frame rate when the standard deviation of the frame interval meets a preset condition; Each time the target application is started, the average frame rate and frame interval standard deviation of the target application within the target sampling time are obtained, the scene identifier issued when it is detected that the target application is started, and the scene issued at the end When identifying, the number of frames in the sampling time interval of the target application is obtained, the corresponding frame number and time interval in the sampling time interval are taken as samples in the sample space, and the reference average frame rate and the time interval are calculated according to the frame number and time interval. Frame interval reference standard deviation, calculate the average frame rate and frame interval standard deviation of the preset sampling times according to the reference average frame rate and frame interval reference standard deviation, and save them. The storage location of frame rate and frame interval standard deviation obtains the above sampling information; Each time it is detected that the scene identifier of the target application is the corresponding opening identifier, the number of opening times of the target application is increased by 1 to obtain the latest opening times of the target application, and the latest opening times are regarded as the opening times of the target application. If the number of times is greater than the preset number of sampling times, a frame rate adjustment event is triggered; The target sampling time includes a time interval corresponding to the target application starting to ending. 8. A computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the frame rate control method according to any one of claims 1-6 is implemented. 9. A terminal, characterized in that, comprising a memory, a processor and a computer program stored on the memory and running on the processor, and when the processor executes the computer program, any one of claims 1-6 is realized. The frame rate control method described above.

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