CN109168029B

CN109168029B - Method, device and computer-readable storage medium for adjusting resolution

Info

Publication number: CN109168029B
Application number: CN201811027872.1A
Authority: CN
Inventors: 王梁磊
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2020-12-29
Anticipated expiration: 2038-09-04
Also published as: CN109168029A

Abstract

The invention discloses a method, equipment and a computer-readable storage medium for adjusting resolution. The method comprises the following steps: acquiring the current resolution and the original resolution of a layer displayed on a system foreground; and if the current resolution is smaller than the original resolution, expanding the current resolution of the layer by a preset value, and executing preset image operation on the layer after the resolution is expanded. In the invention, if the resolution of the layer in the system foreground is smaller, the resolution of the layer can be dynamically adjusted in the system background, and the preset image operation is executed on the layer by using the larger resolution, in the process, the resolution of the image seen by the user in the system foreground is not changed, the resolution of the image or video obtained after the preset image operation is executed is enlarged, and the image definition is higher when the user views the obtained image or video.

Description

Method, device and computer-readable storage medium for adjusting resolution

Technical Field

The present invention relates to the field of image processing technologies, and in particular, to a method and an apparatus for adjusting resolution, and a computer-readable storage medium.

Background

The screen recording is called recording screen for short, and can record the picture of the foreground in the background of the system and form a video file under the condition of not influencing the normal operation of the mobile terminal system. The user can play the video file and check the picture generated in the foreground in the recording time period. For example: checking the operation performed by the foreground, the video played by the foreground, the webpage displayed by the foreground and the like.

Currently, a mobile terminal can record only with a fixed resolution during screen recording, for example: only 1080P video can be recorded. However, the image layer information amount of some videos is large, especially for videos with original resolution much larger than the fixed resolution adopted during recording, if the videos are recorded with the fixed resolution, the pictures of the recorded videos viewed are blurred, and the sensory experience of the user is affected, so that it is obviously not appropriate to use the fixed resolution for screen recording. Therefore, it is an urgent problem to provide a method capable of adjusting resolution during screen recording.

Disclosure of Invention

The invention mainly aims to provide a method, equipment and a computer storage medium for adjusting resolution, and aims to solve the problem of video image blurring caused by recording a screen with fixed resolution in the prior art.

In order to solve the technical problems, the invention solves the problems by the following technical scheme:

the invention provides a method for adjusting resolution, which comprises the following steps: acquiring the current resolution and the original resolution of a layer displayed on a system foreground; and if the current resolution is smaller than the original resolution, expanding the current resolution of the layer by a preset value, and executing preset image operation on the layer after the resolution is expanded.

Executing preset image operation on the layer with the resolution expanded, wherein the preset image operation comprises the following steps: and executing screenshot operation or screen recording operation on the layer after the resolution is expanded.

The method for acquiring the current resolution and the original resolution of the layer displayed by the foreground of the system comprises the following steps: before executing screenshot operation, acquiring the current resolution and the original resolution of the layer in a region to be intercepted; or, in the process of executing screen recording, acquiring the current resolution and the original resolution of the image layer every other preset time period.

Wherein the method further comprises: in the process of executing screen recording, if detecting that resolution switching occurs in a system foreground, generating video files respectively corresponding to the front and the back of the resolution switching.

Wherein the method further comprises: and if a plurality of video files are recorded, splicing the plurality of video files into one video file.

The method for acquiring the current resolution and the original resolution of the layer displayed on the foreground of the system comprises the following steps: and if the system foreground displays a plurality of layers, acquiring the current resolution of each layer and the original resolution of a target layer in the plurality of layers.

Wherein the method further comprises: presetting a plurality of data volume ranges and preset values corresponding to the data volume ranges; enlarging the current resolution of the image layer by a preset value, wherein the enlarging comprises the following steps: if the current resolution of the target layer is smaller than the original resolution, determining the data volume of the target layer according to the original image data of the target layer; determining a preset value corresponding to a data volume range where the data volume of the target layer is located; according to the original image data of the target image layer, enlarging the current resolution of the target image layer by the preset value; and according to the original image data of other image layers, expanding the current resolution of the other image layers by the preset value, or stretching the other image layers by the preset value.

The target layer is the topmost layer or the layer where the focus is located in the plurality of layers.

The invention also provides a device for adjusting the resolution, which is characterized by comprising a processor and a memory; the processor is used for executing the program for adjusting the resolution, which is stored in the memory, so as to realize the method for adjusting the resolution.

The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores one or more programs, which are executable by one or more processors to implement the method for adjusting resolution as described above.

The method, the equipment and the computer storage medium for adjusting the resolution, which are provided by the invention, have the following beneficial effects:

in the invention, if the resolution of the layer in the system foreground is smaller, the resolution of the layer can be dynamically adjusted in the system background, and the preset image operation is executed on the layer by using the larger resolution, in the process, the resolution of the image seen by the user in the system foreground is not changed, the resolution of the image or video obtained after the preset image operation is executed is enlarged, and the image definition is higher when the user views the obtained image or video.

Drawings

Fig. 1 is a schematic diagram of a hardware structure of an optional mobile terminal for implementing various embodiments of the present invention;

FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;

FIG. 3 is a flowchart of a method for adjusting resolution according to a first embodiment of the present invention;

FIG. 4 is a flowchart of a method for adjusting resolution according to a second embodiment of the present invention;

fig. 5 is a block diagram of an apparatus for adjusting resolution according to a third embodiment of the present invention.

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

The mobile terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.

Fig. 1 is a schematic hardware structure of an optional mobile terminal for implementing various embodiments of the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an a/V (audio/video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190, etc. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short-range communication module 114, and a location information module 115.

The broadcast receiving module 111 receives a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel may include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to a terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB), an Electronic Service Guide (ESG) of digital video broadcasting-handheld (DVB-H), and the like. The broadcast receiving module 111 may receive a signal broadcast by using various types of broadcasting systems. In particular, the broadcast receiving module 111 may receive a broadcast signal by using a signal such as multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video broadcasting-handheld (DVB-H), forward link media (MediaFLO)^@) A digital broadcasting system of a terrestrial digital broadcasting integrated service (ISDB-T), etc. receives digital broadcasting. The broadcast receiving module 111 may be constructed to be suitable for various broadcasting systems that provide broadcast signals as well as the above-mentioned digital broadcasting systems. Receiving module via broadcast111 may be stored in memory 160 (or other type of storage medium).

The mobile communication module 112 transmits and/or receives radio signals to and/or from at least one of a base station (e.g., access point, node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless internet module 113 supports wireless internet access of the mobile terminal. The module may be internally or externally coupled to the terminal. The wireless internet access technology to which the module relates may include WLAN (wireless LAN) (Wi-Fi), Wibro (wireless broadband), Wimax (worldwide interoperability for microwave access), HSDPA (high speed downlink packet access), and the like.

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetooth^TMRadio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), zigbee^TMAnd so on.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module is a GPS (global positioning system). According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude, and altitude. Currently, a method for calculating position and time information uses three satellites and corrects an error of the calculated position and time information by using another satellite. In addition, the GPS module 115 can calculate speed information by continuously calculating current position information in real time.

The a/V input unit 120 is used to receive an audio or video signal. The a/V input unit 120 may include a camera 121 and a microphone 122, and the camera 121 processes image data of still pictures or video obtained by an image capturing apparatus in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 151. The image frames processed by the cameras 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the construction of the mobile terminal. The microphone 122 may receive sounds (audio data) via the microphone in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the mobile communication module 112 in case of a phone call mode. The microphone 122 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, and the like due to being touched), scroll wheel, joystick, and the like. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.

The sensing unit 140 detects a current state of the mobile terminal 100 (e.g., an open or closed state of the mobile terminal 100), a position of the mobile terminal 100, presence or absence of contact (i.e., touch input) by a user with the mobile terminal 100, an orientation of the mobile terminal 100, acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal for controlling an operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device.

The interface unit 170 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The identification module may store various information for authenticating a user using the mobile terminal 100 and may include a User Identity Module (UIM), a Subscriber Identity Module (SIM), a Universal Subscriber Identity Module (USIM), and the like. In addition, a device having an identification module (hereinafter, referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected with the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal and the external device.

In addition, when the mobile terminal 100 is connected with an external cradle, the interface unit 170 may serve as a path through which power is supplied from the cradle to the mobile terminal 100 or may serve as a path through which various command signals input from the cradle are transmitted to the mobile terminal. Various command signals or power input from the cradle may be used as signals for recognizing whether the mobile terminal is accurately mounted on the cradle. The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 may display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a User Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch pad are overlapped with each other in the form of a layer to form a touch screen, the display unit 151 may serve as an input device and an output device. The display unit 151 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 into an audio signal and output as sound when the mobile terminal is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output module 152 may provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in different ways to notify the occurrence of an event. For example, the alarm unit 153 may provide an output in the form of vibration, and when a call, a message, or some other incoming communication (communicating communication) is received, the alarm unit 153 may provide a tactile output (i.e., vibration) to inform the user thereof. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152.

The memory 160 may store software programs and the like for processing and controlling operations performed by the controller 180, or may temporarily store data (e.g., a phonebook, messages, still images, videos, and the like) that has been or will be output. Also, the memory 160 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, and the multimedia module 181 may be constructed within the controller 180 or may be constructed separately from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.

The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 180. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in the memory 160 and executed by the controller 180.

Up to this point, mobile terminals have been described in terms of their functionality. Hereinafter, a slide-type mobile terminal among various types of mobile terminals, such as a folder-type, bar-type, swing-type, slide-type mobile terminal, and the like, will be described as an example for the sake of brevity. Accordingly, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which a mobile terminal according to the present invention is operable will now be described with reference to fig. 2.

Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to fig. 2, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the base station 270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 275.

Each BS270 may serve one or more sectors (or regions), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz, 5MHz, etc.).

The intersection of partitions with frequency allocations may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each sector of a particular BS270 may be referred to as a plurality of cell sites.

As shown in fig. 2, a Broadcast Transmitter (BT)295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in fig. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 assists in locating at least one of the plurality of mobile terminals 100.

In fig. 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information may be obtained with any number of satellites. The GPS module 115 as shown in fig. 1 is generally configured to cooperate with satellites 300 to obtain desired positioning information. Other techniques that can track the location of the mobile terminal may be used instead of or in addition to GPS tracking techniques. In addition, at least one GPS satellite 300 may selectively or additionally process satellite DMB transmission.

As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various mobile terminals 100. The mobile terminal 100 is generally engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC provides call resource allocation and mobility management functions including coordination of soft handoff procedures between BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the mobile terminal 100.

Based on the above mobile terminal hardware structure and communication system, the present invention provides various embodiments of the method.

Example one

A first embodiment of the present invention provides a method for adjusting a resolution. The method for adjusting the resolution according to the embodiment can be executed in the background of the mobile terminal. Fig. 3 is a flowchart illustrating a method for adjusting resolution according to a first embodiment of the invention.

Step S310, the current resolution and the original resolution of the layer displayed on the foreground of the system are obtained.

The current resolution of the layer refers to the resolution of an image corresponding to the layer when the image is displayed in the mobile terminal. The image may be a picture image or a video image.

The original resolution of the layer refers to the original resolution of the image corresponding to the layer.

The current resolution of the layers is limited by the mobile terminal hardware. For example: the resolution of the display of the mobile terminal is 1920 × 1080, the GPU (Graphics Processing Unit) of the mobile terminal supports 2K (2048 × 1080) or 4K (4096 × 2160) resolution at maximum, and even if the original resolution of the layer is 2K, the user can only see the image effect with 1920 × 1080 resolution.

In this embodiment, before the preset image operation is performed, the current resolution and the original resolution of the layer displayed in the foreground of the system are obtained. The preset image operation may be a screenshot operation or a screen recording operation.

Specifically, before executing screenshot operation, acquiring the current resolution and the original resolution of the layer in the area to be intercepted; or, in the process of executing screen recording, acquiring the current resolution and the original resolution of the image layer every other preset time period. Further, pixel sampling may be performed on the layer to determine a current resolution of the layer. The original image data of the image layer can be obtained, and the original resolution of the image layer is determined according to the original image data. The original image data includes: original resolution data and data volume data of the image layer. Raw image data may be obtained from a data source of an image store.

For example: after clicking a screenshot button, a user operates the size of a screenshot box to enable a screenshot box area (an area to be intercepted) to cover a part of image layers needing to be intercepted, pixel sampling is carried out on the part of image layers, the current resolution of the part of image layers is determined, and the current resolution of the part of image layers is also the current resolution of the image layers; and acquiring original image data of the layer to which the part of the layer belongs to obtain the original resolution of the layer.

For another example: after clicking a screen recording button, a user performs screenshot on a layer every other preset time period, performs pixel sampling on the screenshot, and obtains the current resolution of the layer; and acquiring original image data of the image layer, and acquiring the original resolution of the image layer.

In this embodiment, the number of layers is one or more, and if the number of layers is multiple, the current resolution and the original resolution of each layer may be obtained, or the current resolution of each layer and the original resolution of the target layer may be obtained.

Step S320, judging whether the current resolution of the layer is smaller than the original resolution of the layer; if yes, go to step S330; if not, step S310 is performed.

If the current resolution of the layer is smaller than the original resolution, the resolution of the layer is also indicated to have an expanded space, and the definition of the recorded video or the intercepted image can be increased by expanding the resolution of the layer.

And step S330, expanding the current resolution of the layer by a preset value, and executing preset image operation on the layer after the resolution is expanded.

And the resolution of the expanded layer is less than or equal to the original resolution of the layer and less than or equal to the maximum resolution supported by the GPU.

And if the number of the layers is multiple, expanding the current resolution of each layer by a preset value, and executing preset image operation on the image formed/synthesized by the layers after the resolution is expanded.

The preset value may be a preset value, a value set by a user according to a requirement, or a value selected according to a preset rule. For example: the method comprises the steps that a system foreground displays a plurality of layers, and the current resolution and the original resolution of each layer are obtained; and determining the layer corresponding to the maximum original resolution, calculating the ratio of the original resolution of the layer to the current resolution, and taking the ratio as a preset value.

And after the current resolution of the image layer is enlarged by a preset value, executing screenshot operation or screen recording operation on the image layer after the resolution is enlarged.

In the process of executing screen recording, if detecting that resolution switching occurs in a system foreground, generating video files respectively corresponding to the front and the back of the resolution switching. Further, if a plurality of video files are recorded, the plurality of video files are spliced into one video file.

For example: in the process of recording videos in the background of the system, the resolution of the video initially displayed in the foreground is 480 × 270, and then the resolution is switched to 1920 × 1080, so that the video recorded in the background forms a video file when the resolution of the foreground is 480 × 270, and the resolution of the video file can be greater than 480 × 270; when the resolution of a foreground is 1920 × 1080, a video recorded in a background separately forms a video file, and the resolution of the video file can be larger than 1920 × 1080; the two video files can be viewed separately, and can also be spliced into a complete video file for viewing.

In this embodiment, if the resolution of the layer in the system foreground is relatively low, the resolution of the layer may be dynamically adjusted in the system background, and a preset image operation is performed on the layer with a relatively high resolution, in this process, the resolution of a picture (a displayed layer) viewed by a user in the system foreground is not changed, while the resolution of an image or a video obtained after the preset image operation is performed is increased, and the image definition is relatively high when the user views the obtained image or video.

For example: the resolution of the mobile terminal display is 1920 × 1080; the original resolution of the video is 2048 × 1080, after the video window is switched to the floating window, the resolution is reduced to 480 × 270, the resolution of the layer where the webpage is located is 1920 × 1080, and the current resolution 480 × 270 of the layer where the video is located is smaller than the original resolution 2048 × 1080. When the screen recording operation is performed, if the resolution of the image layer where the video is located and the image layer where the web page is located are not adjusted, the resolution of each frame of image obtained after the video and the web page are synthesized is 1920 × 1080, which may affect the definition of the video. Thus, based on this embodiment, the resolutions of the layer where the video is located and the layer where the web page is located are adjusted, if the layer where the video is located is 1920 × 1080 (expanded by 4 times), then the layer where the web page is 7680 × 4320 (expanded by 4 times), and finally the synthesized image is 7680 × 4320 (expanded by 4 times); if the layer where the video is located is 2048 × 1080 (16 times enlarged), the layer where the webpage is located is 8190 × 4320 (16 times enlarged), and finally the synthesized image is 8190 × 4320 (16 times enlarged).

Example two

In some application scenarios, the mobile terminal may currently display multiple layers, and the following description is directed to a case of displaying multiple layers.

Fig. 4 is a flowchart illustrating a method for adjusting resolution according to a second embodiment of the present invention.

Step S410, if the system foreground displays multiple layers, obtaining the current resolution of each layer and the original resolution of a target layer in the multiple layers.

The target layer is the topmost layer or the layer where the focus is located in the plurality of layers. The layer where the focus is located refers to the layer which is operated by the user last.

For example: a user views a video and simultaneously views a webpage, and a video window is displayed on the upper layer of the webpage in a floating window mode; in this way, the foreground of the system displays two layers, the layer where the video is located is the uppermost layer of image, the layer where the video is located is the target layer, the current resolution and the original resolution of the layer where the video is located are obtained, and the current resolution of the layer where the webpage is located is obtained.

Step S420, judging whether the current resolution of the target layer is smaller than the original resolution; if yes, go to step S430; if not, step S410 is performed.

Step S430, if the current resolution of the target layer is smaller than the original resolution, determining a preset value corresponding to the data volume range in which the data volume of the target layer is located according to the original image data of the target layer.

A plurality of data volume ranges and preset values corresponding to each of the data volume ranges are preset.

Step S440, according to the original image data of the target layer, enlarging the current resolution of the target layer by the preset value.

Acquiring original image data of a target image layer, and reading partial image data from the original image data to enable the resolution of the image data to be a preset value of the current resolution of a target image; or reading partial resolution data from the original image data, and filling the resolution data into a target layer to enlarge the current resolution of the target layer by a preset value.

And step S450, according to the original image data of other image layers, enlarging the current resolution of the other image layers by the preset value, or stretching the other image layers by the preset value.

Step S460, performing a preset image operation on the layers after the resolution is expanded.

The preset image operation is a screenshot operation or a screen recording operation.

Each layer view on the mobile terminal interface has an independent layer analysis surface. And sending all surfaces to a fliner to be uniformly drawn into a frame of image according to the upper and lower levels Z-order of the image layer, and then outputting the frame of image as a video stream. And sampling the target image layer every time when the View is switched, and judging whether to readjust the resolution of each image layer according to the relationship between the current resolution and the original resolution of the target image layer if the current resolution of the target image layer jumps. The switching of the layers is performed independently, and generally layer switching is accompanied by resolution change, so that a video file is saved once every layer switching, for example: when the system detects that the graph layer is cut for 4 times, the video file is generated for 4 times finally, the video file for 4 times can be provided for the user independently, and the video files for 4 times can be spliced together and provided for the user.

For example: the system foreground simultaneously plays three videos, two video windows are partially overlapped, the resolution of the layer where the first video is located is 480 multiplied by 270, the resolution of the layer where the second video is located is 320 multiplied by 100, the resolution of the layer where the third video is located is 720 multiplied by 720, and the real resolutions (original resolutions) of the three videos are 2048 multiplied by 1080. The resolution of the mobile terminal display hardware is 1920 x 1080, and if recording is normal, the resolution of the video file is 1920 x 1080. When the focus is switched to the second video, in order to ensure that the definition of the second video is higher in the recorded video file, the second video may be used as a standard to adjust the resolutions of the image layers corresponding to the first video, the second video, and the third video, respectively. Acquiring original image data of a second video, acquiring data volume of the second video, and determining a preset value corresponding to a data volume range in which the data volume of the second video is located, such as: if the preset value is 2, reading partial image data from the original image data of the second video, wherein the resolution of the partial image data is 2 times of the current resolution of the second video, and stretching the images of the first video and the third video by 1 time respectively, so that the resolutions of the first video and the third video are also expanded to be 2 times of the current resolution. In the process, the display proportions and the resolutions of the three videos simultaneously played in the foreground are not changed, and in the recorded video file, the display proportions of the first video, the second video and the third video are not changed, but the resolutions are enlarged by 2 times.

In this embodiment, the information amount of a target layer in a plurality of layers is determined, and the resolutions of the target layer and other layers are adaptively adjusted according to the information amount of the target layer. Further, since the focus of the user is generally on the target layer (the layer on the uppermost layer or the layer where the focus is located), in this embodiment, the resolution of the target layer is mainly adjusted, and for the target layer with a large amount of information, the information change details are more, and the resolution of the target layer can be expanded more, and for the target layer with a small amount of information, the information change details are less, and the resolution of the target layer can be expanded less.

EXAMPLE III

The present embodiment provides an apparatus for adjusting resolution. Fig. 5 is a block diagram of an apparatus for adjusting resolution according to a third embodiment of the present invention.

In this embodiment, the apparatus 500 for adjusting resolution includes, but is not limited to: processor 510, memory 520.

The processor 510 is configured to execute the program for adjusting the resolution stored in the memory 520 to implement the method for adjusting the resolution according to the first embodiment to the second embodiment.

Specifically, the processor 510 is configured to execute the program for adjusting the resolution stored in the memory 520 to implement the following steps: acquiring the current resolution and the original resolution of a layer displayed on a system foreground; and if the current resolution is smaller than the original resolution, expanding the current resolution of the layer by a preset value, and executing preset image operation on the layer after the resolution is expanded.

Optionally, the performing a preset image operation on the layer with the expanded resolution includes: and executing screenshot operation or screen recording operation on the layer after the resolution is expanded.

Optionally, the obtaining of the current resolution and the original resolution of the layer displayed on the foreground of the system includes: before executing screenshot operation, acquiring the current resolution and the original resolution of a layer in an area to be intercepted; or, in the process of executing screen recording, acquiring the current resolution and the original resolution of the image layer every other preset time period.

Optionally, in the process of executing screen recording, if it is detected that resolution switching occurs in the system foreground, video files respectively corresponding to the front and the back of resolution switching are generated.

Optionally, if a plurality of video files are recorded, the plurality of video files are spliced into one video file.

Optionally, obtaining the current resolution and the original resolution of the layer displayed in the foreground of the system includes: and if the system foreground displays a plurality of layers, acquiring the current resolution of each layer and the original resolution of a target layer in the plurality of layers.

Optionally, a plurality of data volume ranges and preset values corresponding to the data volume ranges are preset; enlarging the current resolution of the image layer by a preset value, wherein the enlarging comprises the following steps: if the current resolution of the target layer is smaller than the original resolution, determining the data volume of the target layer according to the original image data of the target layer; determining a preset value corresponding to a data volume range where the data volume of the target layer is located; according to the original image data of the target image layer, enlarging the current resolution of the target image layer by the preset value; and according to the original image data of other image layers, expanding the current resolution of the other image layers by the preset value, or stretching the other image layers by the preset value.

Optionally, the target layer is an uppermost layer or a layer where the focus is located in the plurality of layers.

Example four

The embodiment of the invention also provides a computer storage medium. The computer-storable medium herein stores one or more programs. Among other things, computer-readable storage media may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

When one or more programs in the computer-readable storage medium are executable by one or more processors to implement the above-described method for adjusting resolution.

Specifically, the processor is configured to execute a program stored in the memory for adjusting the resolution to implement the steps of: acquiring the current resolution and the original resolution of a layer displayed on a system foreground; and if the current resolution is smaller than the original resolution, expanding the current resolution of the layer by a preset value, and executing preset image operation on the layer after the resolution is expanded.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method of adjusting resolution, the method comprising the steps of:

acquiring the current resolution and the original resolution of a layer displayed on a system foreground;

if the current resolution is smaller than the original resolution, expanding the current resolution of the layer by a preset value, and executing a preset image operation on the layer after the resolution is expanded;

presetting a plurality of data volume ranges and preset values corresponding to the data volume ranges; enlarging the current resolution of the image layer by a preset value, wherein the enlarging comprises the following steps: if the current resolution of the target layer is smaller than the original resolution, determining the data volume of the target layer according to the original image data of the target layer; determining a preset value corresponding to a data volume range where the data volume of the target layer is located; according to the original image data of the target image layer, enlarging the current resolution of the target image layer by the preset value; and according to the original image data of other image layers, expanding the current resolution of the other image layers by the preset value, or stretching the other image layers by the preset value.

2. The method according to claim 1, wherein performing a preset image operation on the layer after the resolution is expanded comprises:

and executing screenshot operation or screen recording operation on the layer after the resolution is expanded.

3. The method of claim 2, wherein obtaining the current resolution and the original resolution of the layer displayed in the foreground of the system comprises:

before executing screenshot operation, acquiring the current resolution and the original resolution of a layer in an area to be intercepted; alternatively, the first and second electrodes may be,

and in the process of executing screen recording, acquiring the current resolution and the original resolution of the image layer at intervals of a preset time period.

4. A method according to claim 2 or 3, characterized in that the method further comprises:

in the process of executing screen recording, if detecting that resolution switching occurs in a system foreground, generating video files respectively corresponding to the front and the back of the resolution switching.

5. The method of claim 4, further comprising:

and if a plurality of video files are recorded, splicing the plurality of video files into one video file.

6. The method of claim 1, wherein obtaining the current resolution and the original resolution of the layer displayed in the foreground of the system comprises:

and if the system foreground displays a plurality of layers, acquiring the current resolution of each layer and the original resolution of a target layer in the plurality of layers.

7. The method according to claim 6, wherein the target layer is a topmost layer or a layer at a focus in the plurality of layers.

8. An apparatus for adjusting resolution, the apparatus comprising a processor, a memory; the processor is used for executing the program for adjusting the resolution stored in the memory so as to realize the method for adjusting the resolution according to any one of claims 1 to 7.

9. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the method of adjusting resolution of any one of claims 1-7.