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Method and device for controlling working frequency of central processing unit (CPU)

A technology of operating frequency and control method, which is applied in the field of CPU operating frequency control, can solve problems such as inability to adjust CPU operating frequency in time, inaccuracy, and reduce power consumption, so as to avoid the use of CPU operating frequency, reduce power consumption, Play smooth effect

Inactive Publication Date: 2014-09-03
THUNDERSOFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the CPU load changes, the required CPU operating frequency will also change, but this method cannot adjust the CPU operating frequency in time, so this method has great inaccuracy
Therefore, this method is not conducive to reducing power consumption
[0010] Combining the above two methods of setting the CPU operating frequency, none of them can solve the problem of reducing power consumption as much as possible on the premise of ensuring smooth audio and video playback

Method used

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  • Method and device for controlling working frequency of central processing unit (CPU)
  • Method and device for controlling working frequency of central processing unit (CPU)
  • Method and device for controlling working frequency of central processing unit (CPU)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] see figure 1 , figure 1 It is a schematic flow chart of the method for controlling the operating frequency of the CPU provided by Embodiment 1 of the present invention. like figure 1 As shown, the control method includes the following steps:

[0054] S11. Determine whether the audio and video player is in the audio and video playback state:

[0055]The user plays the audio and video source, and the audio and video player detects that the audio and video player is in the audio and video playing state. If the audio and video player is in the audio and video playing state, step S12 is performed.

[0056] S12. Detect the encoding format of the audio and video source being played:

[0057] It should be noted that there are multiple encoding formats for audio and video, and audio and video sources of different encoding formats may be decoded by the same type of decoder, or may need to be decoded by different types of decoders. Regardless of whether the same type of decod...

Embodiment 2

[0081] The CPU operating frequency control method described in Embodiment 2 has many similarities with the CPU operating frequency control method described in Embodiment 1. For the sake of brevity, this embodiment only focuses on the differences. The same For details, please refer to the description of Embodiment 1.

[0082] see figure 2 , the method for controlling the CPU operating frequency described in Embodiment 2 comprises the following steps:

[0083] Steps S21 to S23 are the same as steps S11 to S13 described in the first embodiment, and for the sake of brevity, no detailed description is given here. For details, refer to the description of the first embodiment.

[0084] S24, storing the CPU operating frequency when the audio and video player is in a non-audio and video playback state:

[0085] As an example of the present invention, in Embodiment 2 of the present invention, the step of storing the CPU operating frequency when the audio and video player is in a non-...

Embodiment 3

[0095] see image 3 , image 3 It is a schematic structural diagram of the CPU operating frequency control device provided by Embodiment 3 of the present invention. Such as image 3 As shown, the control unit includes:

[0096] The first judging unit 31 is used to judge whether the audio-video player is in the audio-video playback state;

[0097] The detection unit 32 is used to detect the encoding format of the audio and video source being played after receiving the judgment result that the first judgment unit outputs yes;

[0098] The first acquisition unit 33 is used to obtain the CPU operating frequency corresponding to the encoding format of the audio and video source according to the detected encoding format of the audio and video source;

[0099] The CPU frequency configuration unit 34 configures the CPU operating frequency as the CPU operating frequency corresponding to the encoding format of the audio and video source.

[0100] In the CPU operating frequency cont...

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Abstract

The invention provides a method and a device for controlling the working frequency of a central processing unit (CPU). The control method comprises the following steps: judging whether an audio / video player is in an audio / video play state, if so, detecting a coded format of a playing audio / video source; obtaining a working frequency of the CPU corresponding to the coded format of the audio / video source according to the detected coded format of the audio / video source; configuring the working frequency of the CUP into the working frequency of the CPU corresponding to the coded format of the audio / video source. The audio / video source can be smooth to play, and the power consumed for playing the audio / video source can be reduced to the minimal extent by the working frequency of the CPU configured by the method for controlling the working frequency of the CPU, so that the working frequency of the CPU achieves the optimal work state. Therefore, compared with the prior art, the power consumed for playing the audio / video source is reduced by the method for controlling the working frequency of the CPU.

Description

technical field [0001] The invention relates to the field of audio and video playback, in particular to a method and device for controlling the operating frequency of a CPU. Background technique [0002] With the development of science and technology, audio and video players are becoming more and more popular in daily life. In the audio and video player, the CPU is an important component that consumes power. Different CPU operating frequencies consume the same amount of power, and the higher the CPU operating frequency, the higher the power consumption. [0003] Currently, there are two main ways to set the operating frequency of the CPU: [0004] 1. Control the operating frequency of the CPU at the highest operating frequency state: [0005] Under this highest operating frequency, audio and video sources play the most smoothly, the playback effect is the best, and the user experience is the best. However, this working mode consumes a lot of power. [0006] 2. Dynamically...

Claims

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Application Information

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IPC IPC(8): G06F1/32
Inventor 朱勇
Owner THUNDERSOFT