WO2020108010A1 - 视频处理方法、装置、电子设备以及存储介质 - Google Patents

视频处理方法、装置、电子设备以及存储介质 Download PDF

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Publication number
WO2020108010A1
WO2020108010A1 PCT/CN2019/105475 CN2019105475W WO2020108010A1 WO 2020108010 A1 WO2020108010 A1 WO 2020108010A1 CN 2019105475 W CN2019105475 W CN 2019105475W WO 2020108010 A1 WO2020108010 A1 WO 2020108010A1
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Prior art keywords
current distance
distance
video
user
electronic device
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PCT/CN2019/105475
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English (en)
French (fr)
Inventor
彭德良
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Oppo广东移动通信有限公司
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Publication of WO2020108010A1 publication Critical patent/WO2020108010A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration
    • H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast

Definitions

  • the present application relates to the technical field of electronic equipment, and more specifically, to a video processing method, device, electronic equipment, and storage medium.
  • the present application proposes a video processing method, device, electronic device, and storage medium to solve the above problems.
  • an embodiment of the present application provides a video processing method, which is applied to an electronic device, the electronic device includes a display screen, and the method includes: detecting the display screen when the electronic device plays a video resource file The current distance from the user; based on the current distance, determining a target optimization parameter corresponding to the current distance; performing display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing Processing the images in the video resource file through the target optimization parameter to improve the video quality of the video resource file.
  • an embodiment of the present application provides a video processing apparatus, which is applied to an electronic device, the electronic device includes a display screen, and the device includes: a detection module, configured to play a video resource file when the electronic device plays, Detecting the current distance between the display screen and the user; a determination module for determining a target optimization parameter corresponding to the current distance based on the current distance; a processing module for determining the target optimization parameter based on the target optimization parameter
  • the video resource file is subjected to display enhancement processing, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to improve the video quality of the video resource file.
  • an embodiment of the present application provides an electronic device, including a memory and a processor.
  • the memory is coupled to the processor.
  • the memory stores instructions that are executed when the instructions are executed by the processor.
  • the processor executes the above method.
  • an embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores program code, and the program code can be called by a processor to execute the above method.
  • FIG. 1 shows a schematic flowchart of video playback provided by an embodiment of the present application
  • FIG. 2 shows a schematic flowchart of a video processing method provided by an embodiment of the present application
  • FIG. 3 shows a schematic diagram of a video resource file played by an electronic device provided by an embodiment of the present application without undergoing display enhancement processing
  • FIG. 4 shows a schematic diagram of a video resource file played by an electronic device provided by an embodiment of the present application after being subjected to display enhancement processing
  • FIG. 5 shows a schematic flowchart of a video processing method provided by another embodiment of the present application.
  • FIG. 6 shows a schematic flowchart of step S230 of the video processing method shown in FIG. 5 of the present application
  • FIG. 7 shows a schematic flowchart of a video processing method provided by another embodiment of the present application.
  • FIG. 8 shows a schematic flowchart of a video processing method provided by another embodiment of the present application.
  • step S420 of the video processing method shown in FIG. 8 of the present application shows a schematic flowchart of step S420 of the video processing method shown in FIG. 8 of the present application.
  • FIG. 10 shows a schematic flowchart of a video processing method provided by yet another embodiment of the present application.
  • FIG. 11 shows a block diagram of a video processing device provided by an embodiment of the present application.
  • FIG. 12 shows a block diagram of an electronic device for performing a video processing method according to an embodiment of the present application
  • FIG. 13 shows a storage unit for storing or carrying program codes for implementing a video processing method according to an embodiment of the present application.
  • FIG. 1 shows a video playback process.
  • the next job is to analyze the audio and video data.
  • General video files are composed of video stream and audio stream. Different video formats have different audio and video packaging formats.
  • the process of synthesizing audio and video streams into files is called muxer, while the process of separating audio and video streams from media files is called demuxer.
  • muxer the process of synthesizing audio and video streams into files
  • demuxer the process of separating audio and video streams from media files.
  • the decoded video frame can be directly rendered, and the audio frame can be sent to the buffer of the audio output device for playback.
  • video rendering The timestamp of the audio playback needs to be synchronized.
  • video decoding may include hard decoding and soft decoding.
  • hardware decoding a part of the video data that is originally handed over to the Central Processing Unit (CPU) for processing is handed over to the graphics processor (Graphics Processing Unit, GPU) To do it, and the parallel computing capability of the GPU is much higher than that of the CPU, which can greatly reduce the load on the CPU. After the CPU occupancy rate is low, you can run some other programs at the same time.
  • the processor such as i5 2320, or any quad-core processor of AMD, it can perform both hard decoding and soft decoding.
  • the multimedia framework obtains the video file to be played by the client through the API interface with the client, and hands it to the video codec (Video Decode), where the Media Framework is in the Android
  • the multimedia framework, MediaPlayer, MediaPlayerService and Stagefrightplayer constitute the basic framework of Android multimedia.
  • the multimedia framework part adopts the C/S structure.
  • MediaPlayer serves as the client terminal of the C/S structure.
  • MediaPlayerService and Stagefrightplayer serve as the server terminal of the C/S structure. They assume the responsibility of playing multimedia files.
  • Video Decode is a super decoder that integrates the most commonly used audio and video decoding and playback to decode video data.
  • soft decoding that is, let the CPU decode the video through software.
  • Hard decoding means that the video decoding task can be completed independently through a dedicated daughter card device without resorting to the CPU.
  • the decoded video data will be sent to the layer transfer module (SurfaceFlinger), and SurfaceFlinger will render and synthesize the decoded video data on the display screen.
  • SurfaceFlinger is an independent Service, which receives all Window’s Surface as input, calculates the position of each Surface in the final composite image according to ZOrder, transparency, size, position and other parameters, and then hands it to HWComposer or OpenGL to generate the final Display buffer, and then display to a specific display device.
  • the CPU decodes the video data to SurfaceFlinger for rendering and synthesis
  • hard decoding is decoded by the GPU and then rendered and synthesized by SurfaceFlinger.
  • the SurfaceFlinger will call the GPU to render and synthesize the image and display it on the display.
  • the current electronic device processing method for video data is fixed.
  • the video file resource is either displayed or not enhanced, and the video is processed on the electronic device.
  • the display enhancement processing method is the same, and the display enhancement method adapted to the different distance between the user and the electronic device is not selected. Therefore, the display enhancement processing effect is not ideal, and the user experience Not good.
  • the inventor discovered after long-term research and proposed the video processing method, device, electronic device, and storage medium provided by the embodiments of the present application, and determines different optimization parameters according to different distances between the display screen and the user, so as to The optimized parameters corresponding to the distance between the display screen and the user perform display enhancement processing on the video resource file to improve the display effect of the video screen.
  • the specific video processing method will be described in detail in subsequent embodiments.
  • FIG. 2 shows a schematic flowchart of a video processing method provided by an embodiment of the present application.
  • the video processing method is used to determine different optimization parameters according to different distances between the display screen and the user, so as to perform display enhancement processing on the video resource file through the optimization parameters corresponding to the distance between the display screen and the user, and improve the display effect of the video picture.
  • the video processing method is applied to the video processing device 200 shown in FIG. 11 and the electronic device 100 (FIG. 12) equipped with the video processing device 200.
  • FIG. 12 the electronic device 100 equipped with the video processing device 200.
  • the specific process of this embodiment will be described below using an electronic device as an example, where the electronic device includes a display screen.
  • the electronic device applied in this embodiment may be a smart phone, a tablet computer, or a wearable electronic device.
  • Devices, vehicle-mounted devices, gateways, etc. are not specifically limited here.
  • the video processing method may specifically include the following steps:
  • Step S110 When the electronic device plays a video resource file, detect the current distance between the display screen and the user.
  • the electronic device includes a display screen, wherein the displayable area of the display screen can be used to display content such as text, pictures, icons, or videos.
  • the display screen is used to display video resource files .
  • touch technology more and more electronic devices can also be equipped with a touch screen. In the case of setting the touch screen, when it is detected that the user drags, clicks, double-clicks, slides, etc. on the touch screen During touch operation, the electronic device can respond to the user's touch operation.
  • the video resource files played by the electronic device may include video resource files played in the foreground of the electronic device, video resource files played in the background of the electronic device, and video resource files switched between the foreground and background of the electronic device , Not specifically limited here.
  • the video resource file played in the foreground refers to the video resource file that can usually interact with the user and can be displayed in the foreground, and it will be suspended when it is not visible;
  • the video resource file played in the background refers to the very limited interaction with the user In addition to the configuration period, the other time of its lifetime is hidden;
  • the video resource files that switch between the foreground and background of the electronic device refer to the video resource files that can be randomly switched between the foreground and the background.
  • the video resource file played by the electronic device is a video resource file played at the foreground of the electronic device.
  • the video resource file may be a local resource file or a network resource file, which is not limited herein. Specifically, if the video resource file is a local resource file, the video resource file can be downloaded from the server in advance by the electronic device and stored locally, and when the video resource file is played, the electronic device can directly read from the local And play, for example, can be directly read and played from the memory of the electronic device.
  • the video resource file is a network resource file
  • the video resource file can be obtained and played online by the electronic device from the server, where the electronic device can obtain the video resource file online from the server through the wireless network
  • the video resource file can also be obtained online from the server through the data network, which is not limited herein, where the data network may include a 2G network, a 3G network, a 4G network, or a 5G network.
  • the electronic device may be installed with a video playback application, and the application icon corresponding to the video playback application is displayed on the desktop of the electronic device.
  • the electronic device can run the video playback application in response, and obtain the video resource file from the server through the network and play it; as another way, the electronic device can be installed with a browser and based on user operation Enter the video playback interface through the webpage of the browser, and obtain the video resource file from the server under the video playback interface and play it.
  • the electronic device when it is determined that the electronic device plays a video resource file, the current distance between the display screen and the user may be detected.
  • the electronic device may further include a distance sensor and a front camera, etc.
  • it may include an infrared sensor, a high-definition camera, an ultra-clear camera, etc.
  • the distance sensor and/or the front camera may be used to communicate between the display and the user The current distance is detected, and will not be repeated here.
  • Step S120 Based on the current distance, determine a target optimization parameter corresponding to the current distance.
  • the electronic device may store multiple distances and multiple optimization parameters, and store correspondence between multiple distances and multiple optimization parameters, where the correspondence may include one distance corresponding to one or more
  • An optimization parameter may also include an optimization parameter corresponding to one or more distances, which is not limited herein.
  • the correspondence between the distance and the optimization parameters can be preset by the user and stored in the electronic device, can be automatically set by the electronic device and stored in advance, or can be pre-set by the server and sent to the electronic device. No limitation.
  • the optimization effect of each of the plurality of optimization parameters on the video resource file may be different, that is to say, each optimization parameter of the plurality of optimization parameters may affect the same video The resource file is processed, and the display enhancement effect achieved can be different.
  • the optimization parameters may include exposure enhancement, desiccation, edge sharpening, contrast increase and saturation increase, etc.
  • the target optimization parameters may include exposure enhancement, desiccation, edge sharpening, contrast increase and saturation increase
  • the target optimization parameter is exposure enhancement
  • the target optimization parameter is desiccation
  • the target optimization parameter includes exposure enhancement and de-drying
  • the target optimization parameter includes exposure enhancement, de-drying, Sharpen edges, increase contrast, and increase saturation.
  • the video resource file displayed by the electronic device is the decoded image content.
  • the decoded image content is RGBA format data
  • the RGBA format data needs to be converted to the HSV format, specifically , Obtain the histogram of the image content, count the histogram to obtain the parameters for converting the RGBA format data to the HSV format, and then convert the RGBA format data to the HSV format according to the parameters.
  • the exposure enhancement is used to increase the brightness of the image.
  • the histogram of the image can be used to increase the brightness value of the area where the brightness value is passed.
  • the brightness of the image can be increased by nonlinear superposition.
  • T and I are images with values of [0,1]. The algorithm can iterate multiple times if the effect is not good.
  • denoising the image content is used to remove the noise of the image.
  • the image is often degraded due to the interference and influence of various noises during the generation and transmission of the image, which has a subsequent effect on the processing of the image and image vision. Will have an adverse effect.
  • noise such as: electrical noise, mechanical noise, channel noise and other noise. Therefore, in order to suppress noise, improve image quality, and facilitate higher-level processing, it is necessary to perform denoising preprocessing on the image. From the perspective of the probability distribution of noise, it can be divided into Gaussian noise, Rayleigh noise, gamma noise, exponential noise and uniform noise.
  • the image can be denoised by a Gaussian filter, where the Gaussian filter is a linear filter that can effectively suppress noise and smooth the image. Its operating principle is similar to the average filter, and the average value of the pixels in the filter window is taken as the output.
  • the coefficient of the window template is different from the mean filter.
  • the template coefficient of the mean filter is the same as 1.
  • the template coefficient of the Gaussian filter decreases as the distance from the center of the template increases. Therefore, the Gaussian filter is less blurry than the mean filter.
  • a 5 ⁇ 5 Gaussian filter window is generated, and the center position of the template is used as the coordinate origin for sampling. Bring the coordinates of each position of the template into the Gaussian function, and the value obtained is the coefficient of the template. Then convolving the Gaussian filter window with the image can denoise the image.
  • the edge sharpening is used to make the blurred image clearer.
  • image sharpening There are generally two methods for image sharpening: one is the differential method, and the other is the high-pass filtering method.
  • contrast stretching is a method of image enhancement, and also belongs to the grayscale conversion operation. Through grayscale transformation, the grayscale value is stretched to the entire range of 0-255, then its contrast is obviously greatly enhanced. You can use the following formula to map the gray value of a pixel to a larger gray space:
  • I(x,y) [(I(x,y)-Imin)/(Imax-Imin)](MAX-MIN)+MIN;
  • Imin and Imax are the minimum gray value and maximum gray value of the original image
  • MIN and MAX are the minimum and maximum gray values of the gray space to be stretched.
  • the optimization parameter corresponding to the current distance may be determined based on the corresponding relationship between the distance and the optimization parameter, and used as the target optimization parameter. It is understood that the target optimization parameter may include one optimization parameter or multiple optimization parameters, which is not limited herein.
  • Step S130 Perform display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to enhance the video of the video resource file Picture quality.
  • display enhancement processing is performed on the video resource file based on the target optimization parameter, where the display enhancement processing uses the determined target optimization parameter to the video resource file Image processing to improve the video quality of the video resource file, to enhance the display of the video resource file through optimization parameters adapted to the current distance between the electronic device and the user, and to enhance the visual effect of the video image obtained by the user, where
  • the image quality includes sharpness, sharpness, lens distortion, color, resolution, color gamut range, purity, etc., and its different combinations can have different display enhancement effects.
  • the display enhancement processing of the video resource file can also be understood as a series of operations performed before the formal processing of the video resource file, including image enhancement and image restoration, etc.
  • the image enhancement is done by certain means.
  • the original image is appended with some information or transformation data to selectively highlight the features of interest in the image or suppress some undesired features in the image, so that the image matches the target optimization parameters, thereby improving the image quality and enhancing the visual effect.
  • the display screen of the electronic device may display a screen as shown in FIG. 3, in this case, User P obtains a video resource file that has not undergone display enhancement processing, and when the electronic device performs display enhancement processing on the video resource file through target optimization parameters, the display screen of the electronic device may display the screen as shown in FIG. 4 In this case, the user P obtains a video resource file that has undergone display enhancement processing.
  • the video resource file shown in FIG. 4 is subjected to display enhancement processing, and the video resource file shown in FIG.
  • a target optimization parameter corresponding to the current distance is determined, based on the target
  • the optimization parameter performs display enhancement processing on the video resource file, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to improve the video quality of the video resource file, thereby determining according to different distances between the display screen and the user
  • Different optimization parameters are used to enhance the display of the video resource file through the optimization parameters corresponding to the distance between the display screen and the user to improve the display effect of the video screen.
  • FIG. 5 is a schematic flowchart of a video processing method according to another embodiment of the present application. This method is applied to an electronic device.
  • the electronic device includes a display screen.
  • the process shown in FIG. 5 will be described in detail below.
  • the video processing method shown may specifically include the following steps:
  • Step S210 When the electronic device plays a video resource file, detect the current distance between the display screen and the user.
  • step S210 For the specific description of step S210, please refer to step S110, which will not be repeated here.
  • Step S220 Determine whether the current distance is less than a first distance threshold.
  • the electronic device is provided with a first distance threshold, which is used as a basis for determining the current distance between the display screen of the electronic device and the user.
  • the first distance threshold may be stored locally by the electronic device in advance, or may be set during judgment, which is not limited herein.
  • the first distance threshold may be automatically configured by the electronic device, may be manually set by the user, or may be transmitted to the electronic device after configuration by the server, which is not limited herein.
  • the first distance threshold may include 1 m, 0.8 m, etc., which is not limited herein.
  • the current distance is compared with the first distance threshold to determine whether the current distance is less than the first distance threshold.
  • Step S230 When the current distance is less than the first distance threshold, determine a target optimization parameter corresponding to the current distance based on the current distance.
  • the electronic device when it is determined that the current distance is not less than the first distance threshold, for example, when the current distance is not less than 1 m, it indicates that the current distance between the electronic device and the user is too far, and the electronic device may be prohibited from pairing
  • the video resource file is subjected to display enhancement processing to reduce the power consumption of the electronic device.
  • the target display enhancement mode corresponding to the current distance may be determined from multiple display enhancement modes to perform display enhancement processing on the video resource file through the target display enhancement mode, where the target enhancement mode includes at least Target optimization parameters, and each of the multiple display enhancement modes processes the video quality of the video resource file differently.
  • the target display enhancement mode includes a first target display enhancement mode and a second target display enhancement mode
  • the first target display enhancement mode at least includes exposure enhancement, desiccation, edge sharpening, contrast increase, and saturation increase.
  • Target optimization parameters the second target display enhancement mode includes at least the target optimization parameters consisting of exposure enhancement and desiccation, then, it is understandable that the video quality obtained by processing the video resource file through the first target display enhancement mode It is superior to the video quality obtained by processing the video resource file through the second target display enhancement mode.
  • the electronic device may store multiple display enhancement modes and multiple distances, and store the correspondence between the multiple display enhancement modes and multiple distances, where the correspondence may be It includes one display enhancement mode corresponding to one or more distances, and may also include one distance corresponding to one or more display enhancement modes, which is not limited herein.
  • the correspondence between the display enhancement mode and the distance can be pre-set by the user and stored in the electronic device, can be automatically set by the electronic device and stored in advance, or can be sent to the electronic device after the server is pre-set. This is not limited.
  • each of the multiple display enhancement modes has a different video image quality by processing the video resource file, that is, each of the multiple display enhancement modes
  • the display enhancement method processes the same video resource file and achieves different display enhancement effects.
  • the optimization parameters adopted by each display enhancement method are different, the number of optimization parameters is different, and the optimization methods of optimization parameters are different.
  • the optimization effect on the same video resource file is different.
  • the electronic device may create a mapping relationship table, and the mapping relationship table may include correspondences between multiple display enhancement modes and multiple distances.
  • the mapping relationship table may be as shown in Table 1, where The display enhancement mode is denoted by A and the distance is expressed by B. Then, through the mapping relationship table, the electronic device can correspondingly set the correspondence between the display enhancement mode and the distance and store it locally in the electronic device.
  • the distance corresponding to the current distance may be searched from the mapping relationship table, and then based on the display enhancement mode in the mapping relationship table For the correspondence relationship with the distance, the display enhancement mode corresponding to the distance can be searched for, and the display enhancement mode can be determined as the target display enhancement mode.
  • FIG. 6 shows a schematic flowchart of step S230 of the video processing method shown in FIG. 5 of the present application.
  • the process shown in FIG. 6 will be described in detail below.
  • the method may specifically include the following steps:
  • Step S231 When the current distance is less than the distance threshold, perform identification on the user's biometric data to obtain an identification result.
  • the user after determining the current distance between the display screen of the electronic device and the user, there may be a case where the user faces the display screen, or there may be a case where the user does not face the display screen, understandably, when When the user faces the display screen, it can be characterized that the user's attention is focused on the video resource file played by the electronic device.
  • performing display enhancement processing on the video resource file can improve the user experience, when the user is not facing the display screen For example, when the user is facing the display screen or facing away from the display screen, it can be characterized that the user's attention is not on the video resource file played by the electronic device, so the display enhancement processing of the video resource file will cause power consumption of the electronic device , You can prohibit the display enhancement processing of video resource files to reduce power consumption of electronic devices.
  • the user's biometric data can be identified to obtain a recognition result. Understandably, based on the recognition result, it can be known whether the user is face-to-face To the display.
  • Step S232 Determine whether the recognition result includes face information or iris information.
  • the user's image can be collected through the front camera, and the collected user image can be recognized through image recognition technology or machine learning technology to obtain a recognition result, and whether the recognition result includes face information or iris information can be It is understood that when the recognition result includes at least one of face information and iris information, the user may be considered to face the display screen, and when the recognition result does not include face information and iris information, It is considered that the user is not facing the display screen.
  • Step S233 When the recognition result includes at least one of face information and iris information, based on the current distance, determine a target optimization parameter corresponding to the current distance.
  • display enhancement processing may be performed on the video resource file to improve the user experience.
  • Step S240 Perform display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to enhance the video of the video resource file Picture quality.
  • step S240 please refer to step S130, which will not be repeated here.
  • a video processing method when an electronic device plays a video resource file, the current distance between the display screen and the user is detected to determine whether the current distance is less than the first distance threshold, and when the current distance is less than the At the first distance threshold, based on the current distance, a target optimization parameter corresponding to the current distance is determined, and display enhancement processing is performed on the video resource file based on the target optimization parameter, where the display enhancement processing processes the video through the target optimization parameter
  • the image in the resource file improves the video quality of the video resource file.
  • this embodiment performs display enhancement processing on the video resource file when the current distance between the display screen and the user is less than the first distance threshold, to avoid excessive distance between the display screen and the user When the video resource file is enhanced, the power consumption of the electronic device is increased.
  • FIG. 7 is a schematic flowchart of a video processing method according to another embodiment of the present application. This method is applied to an electronic device.
  • the electronic device includes a display screen.
  • the method may specifically include the following steps:
  • Step S310 When the electronic device plays a video resource file, detect the current distance between the display screen and the user.
  • Step S320 Determine whether the current distance is less than the first distance threshold.
  • steps S310-S320 please refer to steps S210-S220, which will not be repeated here.
  • Step S330 When the current distance is less than the first distance threshold, determine whether the current distance is greater than a second distance threshold, where the second distance threshold is less than the first distance threshold.
  • the electronic device is further provided with a second distance threshold, and the second distance threshold is smaller than the first distance threshold, and the second distance threshold is used as a basis for judging the current distance between the display screen of the electronic device and the user.
  • the second distance threshold may be stored locally by the electronic device in advance, or may be set during judgment, which is not limited herein.
  • the second distance threshold may be automatically configured by the electronic device, may be manually set by the user, or may be transmitted to the electronic device after configuration by the server, which is not limited herein.
  • the second distance threshold may include 0.3m, 0.4m, etc., which is not limited herein.
  • the current distance is compared with the second distance threshold to determine whether the current distance satisfies the first distance threshold and Greater than the second distance threshold.
  • Step S340 When the current distance is greater than the second distance threshold, determine a target optimization parameter corresponding to the current distance based on the current distance.
  • the electronic device when it is determined that the current distance is not greater than the second distance threshold, for example, when the current distance is not greater than 0.3m, it indicates that the current distance between the electronic device and the user is too close, and the electronic device may be prohibited Display enhancement processing is performed on video resource files to reduce power consumption of electronic devices.
  • the current distance when it is determined that the current distance is less than the first distance threshold and greater than the second distance threshold, for example, when the current distance is 0.6m, it indicates that the current distance between the display screen and the user is moderate, and may be based on The current distance determines the target optimization parameters and performs display enhancement processing on the video resource file.
  • the target optimization parameter the lower the video quality corresponding to the optimization parameter, the lower the power consumption of the electronic device; the greater the current distance, the farther away the electronic device is from the display screen, and the more blurred the video resource file that the user sees, then the target optimization parameter
  • the higher the video quality can be to improve the display effect of video resource files and enhance the user experience.
  • Step S350 Perform display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to enhance the video of the video resource file Picture quality.
  • step S350 please refer to step S130, which will not be repeated here.
  • a video processing method when an electronic device plays a video resource file, the current distance between the display screen and the user is detected to determine whether the current distance is less than the first distance threshold, and when the current distance is less than the When the first distance threshold is used, determine whether the current distance is greater than the second distance threshold, where the second distance threshold is less than the first distance threshold, and when the current distance is greater than the second distance threshold, determine the current distance based on the current distance
  • display enhancement processing is performed on the video resource file based on the target optimization parameter, where the display enhancement processing processes the image in the video resource file through the target optimization parameter to improve the video quality of the video resource file.
  • this embodiment performs display enhancement processing on the video resource file when the current distance between the display screen and the user is less than the first distance threshold and greater than the second distance threshold to avoid If the distance between the screen and the user is too large or too small, display enhancement processing is performed on the video resource file to increase power consumption of the electronic device.
  • FIG. 8 is a schematic flowchart of a video processing method according to another embodiment of the present application. This method is applied to an electronic device.
  • the electronic device includes a display screen.
  • the process shown in FIG. 8 will be described in detail below.
  • the video processing method may specifically include the following steps:
  • Step S410 When the electronic device plays a video resource file, detect the current distance between the display screen and the user.
  • step S410 For the specific description of step S410, please refer to step S110, which will not be repeated here.
  • Step S420 Detecting the length of time that the display screen and the user keep the current distance unchanged.
  • the length of time that the display screen and the user keep the current distance unchanged is detected.
  • a timer may be started and the current distance between the display screen and the user may continue to be detected. If the current distance is detected to remain unchanged, then The duration obtained at the timer can be regarded as the duration at which the current distance between the display screen and the user remains unchanged, and if it is detected that the current distance changes, the timer is controlled to retime.
  • FIG. 9 shows a schematic flowchart of step S420 of the video processing method shown in FIG. 8 of the present application.
  • the process shown in FIG. 9 will be described in detail below.
  • the method may specifically include the following steps:
  • Step S421 Detect the change value of the current distance between the display screen and the user.
  • the change value can be regarded as an absolute value.
  • the current distance between the display screen and the user at the previous moment is 0.6m, and the current distance at the current moment is 0.5m, then it can be known that the change value of the current distance between the display screen and the user is 0.1m; for another example, the current distance between the display screen and the user at the previous time is 0.6m, and the current distance at the current time is 0.7m, then the current distance between the display screen and the user can be known
  • the change value is also 0.1m.
  • Step S422 Determine whether the change value is less than the change threshold.
  • the electronic device is provided with a change threshold, which is used as a basis for judging the change value of the current distance between the display screen and the user.
  • the change threshold may be stored locally by the electronic device in advance, or may be set during judgment, which is not limited herein.
  • the change threshold may be automatically configured by the electronic device, may be manually set by a user, or may be transmitted to the electronic device after configuration by the server, which is not limited herein, and the change threshold may include 0.05m, 0.1m, and the like. As a way, after acquiring the change value of the current distance between the display screen and the user, the change value can be compared with the change threshold to determine whether the change value is less than the change threshold.
  • Step S423 When the change value is less than the change threshold, it is determined that the display screen and the user keep the current distance unchanged.
  • the change value is less than the change threshold, the current distance between the display screen of the electronic device and the user may be considered to change within a small allowable range. This change may be caused by environmental factors rather than intentionally changed by the user Therefore, it can be determined that the current distance between the display screen and the user remains unchanged.
  • Step S424 Detecting the length of time that the display screen and the user keep the current distance unchanged.
  • Step S430 Determine whether the duration is greater than the duration threshold.
  • the electronic device sets a time duration threshold, and the time duration threshold is used as a basis for judging the length of time that the display screen and the user keep the current distance unchanged.
  • the duration threshold may be stored locally by the electronic device in advance, or may be set at the time of judgment, which is not limited herein.
  • the duration threshold can be automatically configured by the electronic device, can be manually set by the user, or can be transmitted to the electronic device after configuration by the server, which is not limited herein, and the duration threshold can include 10s, 30s, and so on. As a way, after acquiring the time duration at which the display screen and the user keep the current distance unchanged, the time duration can be compared with a time duration threshold to determine whether the time duration is greater than the time duration threshold.
  • Step S440 When the duration is greater than the duration threshold, determine a target optimization parameter corresponding to the current distance based on the current distance.
  • the current distance can be determined based on the current distance
  • the corresponding target optimization parameters perform display enhancement processing on the video resource file.
  • Step S450 Perform a display enhancement process on the video resource file based on the target optimization parameter, where the display enhancement process processes the image in the video resource file through the target optimization parameter to enhance the video of the video resource file Picture quality.
  • step S450 please refer to step S130, which will not be repeated here.
  • a video processing method when an electronic device plays a video resource file, the current distance between the display screen and the user is detected, the length of time that the display screen and the user keep the current distance unchanged is determined, and the Whether the duration is greater than the duration threshold, when the duration is greater than the duration threshold, the target optimization parameter corresponding to the current distance is determined based on the current distance, and the video resource file is subjected to display enhancement processing based on the target optimization parameter, wherein the display enhancement processing The image in the video resource file is processed through the target optimization parameter to improve the video quality of the video resource file.
  • display enhancement processing is performed on the video resource file to avoid frequent changes to the target optimization Parameters to reduce power consumption of electronic equipment.
  • FIG. 10 is a schematic flowchart of a video processing method according to still another embodiment of the present application. This method is applied to an electronic device.
  • the electronic device includes a display screen.
  • the video processing method may specifically include the following steps:
  • Step S510 When the electronic device plays a video resource file, detect the current distance between the display screen and the user.
  • step S510 For the specific description of step S510, please refer to step S110, which will not be repeated here.
  • Step S520 Detect the remaining power of the electronic device.
  • the method for detecting the remaining power may include a voltage measurement method, a battery modeling method, and a coulomb counter.
  • the battery of the electronic device may be simply monitored Voltage is used to obtain the remaining power.
  • this method is relatively simple, because the battery power and voltage are not linear, the accuracy of the remaining power measured by the voltage measurement method is low; when the battery modeling method is used to When the remaining power is detected, a data table can be established according to the discharge curve of the battery of the electronic device.
  • the data table can indicate the value of the power under different voltages, which can improve the measurement accuracy of the remaining power;
  • a current detection resistor can be connected in series with the positive and negative electrodes of the battery of the electronic device. When a current flows through the resistor, Vsense is generated. By detecting Vsense, the current flowing through the battery can be calculated Accurately track changes in battery power, and improve the detection accuracy of remaining power.
  • Step S530 Based on the current distance and the remaining power, a target optimization parameter corresponding to the current distance and the remaining power is determined.
  • the electronic device may store the correspondence between the current distance, remaining power, and optimization parameters.
  • the correspondence between the current distance, remaining power, and optimization parameters may be determined by the user. It is stored in the electronic device after presetting, and may be automatically set in advance by the electronic device and stored, or may be sent to the electronic device after presetting by the server, which is not limited herein. Therefore, after acquiring the current distance and the remaining power, the target optimization parameters corresponding to both the current distance and the remaining power can be found based on the correspondence between the current distance, the remaining power, and the optimization parameters.
  • the target optimization parameter corresponding to the remaining power may have higher picture optimization quality, and the remaining power of the electronic device The lower it is, the remaining power that characterizes the electronic device is not enough to support a larger power consumption. Then, the picture optimization quality corresponding to the target optimization parameter corresponding to the remaining power can be lower. Therefore, in this embodiment, the target optimization parameters determined based on the current distance and remaining power are more reasonable, and the user experience is improved.
  • Step S540 Perform display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to enhance the video of the video resource file Picture quality.
  • step S540 please refer to step S130, which will not be repeated here.
  • a video processing method when the electronic device plays a video resource file, the current distance between the display screen and the user is detected, and the remaining power of the electronic device is detected based on the current distance and the remaining power , Determine a target optimization parameter corresponding to the current distance and remaining power, and perform display enhancement processing on the video resource file based on the target optimization parameter, where the display enhancement processing processes the image in the video resource file to improve the video through the target optimization parameter Video quality of resource files.
  • this embodiment also detects the remaining power of the electronic device, and determines the target optimization parameters based on the current distance and the remaining power to perform display enhancement processing on the video resource file to improve display enhancement processing Rationality.
  • FIG. 11 shows a block diagram of a video processing apparatus 200 provided by an embodiment of the present application.
  • the video processing device 200 is applied to the above-mentioned electronic device, and the electronic device includes a display screen.
  • the block diagram shown in FIG. 11 will be described below.
  • the video processing device 200 includes: a detection module 210, a determination module 220, and a processing module 230 ,among them:
  • the detection module 210 is configured to detect the current distance between the display screen and the user when the electronic device plays a video resource file.
  • the determining module 220 is configured to determine a target optimization parameter corresponding to the current distance based on the current distance. Further, the determination module 220 includes: a first current distance determination submodule, a first determination submodule, a second current distance determination submodule, a second determination submodule, a duration detection submodule, a duration determination submodule, a third The determination submodule, the remaining power detection submodule and the fourth determination submodule, wherein:
  • the first current distance judgment sub-module is used to judge whether the current distance is less than a first distance threshold.
  • the first determining submodule is configured to determine a target optimization parameter corresponding to the current distance based on the current distance when the current distance is less than the first distance threshold. Further, the first determination submodule includes: a recognition result acquisition unit, a recognition result judgment unit, and a first determination unit, wherein:
  • the recognition result obtaining unit is configured to recognize the user's biometric data to obtain a recognition result when the current distance is less than the distance threshold.
  • the recognition result judgment unit is used to judge whether the recognition result includes face information or iris information.
  • the first determining unit is configured to determine a target optimization parameter corresponding to the current distance based on the current distance when the recognition result includes at least one of face information and iris information.
  • the second current distance determination submodule is used to determine whether the current distance is greater than a second distance threshold, wherein the second distance threshold is less than the first distance threshold.
  • the second determination submodule is configured to determine a target optimization parameter corresponding to the current distance based on the current distance when the current distance is greater than the second distance threshold.
  • the duration detection sub-module is used to detect the duration when the display screen and the user keep the current distance unchanged. Further, the duration detection sub-module includes a change value detection unit, a change value judgment unit, a current distance determination unit, and a duration detection unit, wherein:
  • a change value detection unit is used to detect a change value of the current distance between the display screen and the user.
  • the change value judging unit is used to judge whether the change value is less than the change threshold.
  • the current distance determining unit is configured to determine that the display screen and the user keep the current distance unchanged when the change value is less than the change threshold.
  • the duration detecting unit is configured to detect a duration for which the display screen and the user keep the current distance unchanged.
  • the duration determination sub-module is used to determine whether the duration is greater than a duration threshold.
  • the third determining submodule is configured to determine a target optimization parameter corresponding to the current distance based on the current distance when the time duration is greater than the time duration threshold.
  • the remaining power detection sub-module is used to detect the remaining power of the electronic device.
  • the fourth determining submodule is configured to determine a target optimization parameter corresponding to the current distance and the remaining power based on the current distance and the remaining power.
  • the processing module 230 is configured to perform display enhancement processing on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes images in the video resource file through the target optimization parameter to improve the video resource The video quality of the file.
  • the coupling between the modules may be electrical, mechanical, or other forms of coupling.
  • each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module.
  • the above integrated modules may be implemented in the form of hardware or software function modules.
  • FIG. 12 shows a structural block diagram of an electronic device 100 provided by an embodiment of the present application.
  • the electronic device 100 may be an electronic device capable of running an application program such as a smart phone, a tablet computer, an e-book.
  • the electronic device 100 in this application may include one or more of the following components: a processor 110, a memory 120, a display screen 130, a codec 140, and one or more application programs, one or more of which may be stored in
  • the memory 120 is configured to be executed by one or more processors 110, and one or more programs are configured to perform the method as described in the foregoing method embodiments.
  • the processor 110 may include one or more processing cores.
  • the processor 110 connects various parts of the entire electronic device 100 by using various interfaces and lines, executes or executes instructions, programs, code sets or instruction sets stored in the memory 120, and calls data stored in the memory 120 to execute Various functions and processing data of the electronic device 100.
  • the processor 110 may use at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA).
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA programmable logic array
  • the processor 110 may integrate one or a combination of one of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), and a modem.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • modem modem
  • CPU mainly deals with operating system, user interface and application program, etc.
  • GPU is used for rendering and rendering of display content
  • modem is used for handling wireless communication. It can be understood that the above-mentioned modem may not be integrated into the processor 110, and may be implemented by a communication chip alone.
  • the memory 120 may include random access memory (RAM) or read-only memory (Read-Only Memory).
  • the memory 120 may be used to store instructions, programs, codes, code sets, or instruction sets.
  • the memory 120 may include a storage program area and a storage data area, where the storage program area may store instructions for implementing an operating system and instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.) , Instructions for implementing the following method embodiments.
  • the storage data area may also store data created by the terminal 100 in use (such as a phone book, audio and video data, and chat history data).
  • the codec 140 can be used to encode or decode video data, and then transmit the decoded video data to the display screen 130 for display, wherein the codec 140 can be a GPU, a dedicated DSP, FPGA, ASIG Chips etc.
  • FIG. 13 shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application.
  • the computer readable medium 300 stores program codes, and the program codes can be called by a processor to execute the method described in the above method embodiments.
  • the computer-readable storage medium 300 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
  • the computer-readable storage medium 300 includes a non-transitory computer-readable storage medium.
  • the computer-readable storage medium 300 has a storage space for the program code 310 that performs any of the method steps described above. These program codes can be read from or written into one or more computer program products.
  • the program code 310 may be compressed in an appropriate form, for example.
  • the video processing method, device, electronic device, and storage medium detect the current distance between the display screen and the user when the electronic device plays a video resource file, and determine based on the current distance A target optimization parameter corresponding to the current distance, display enhancement processing is performed on the video resource file based on the target optimization parameter, wherein the display enhancement processing processes the image in the video resource file through the target optimization parameter to improve the video picture of the video resource file Quality, so as to determine different optimization parameters according to different distances between the display screen and the user, to perform display enhancement processing on the video resource file through the optimization parameters corresponding to the distance between the display screen and the user, and improve the display effect of the video screen.

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Abstract

本申请实施例公开了一种视频处理方法、装置、电子设备以及存储介质，涉及电子设备技术领域。该方法应用于电子设备，所述方法包括：当电子设备播放视频资源文件时，检测该显示屏和用户之间的当前距离，基于该当前距离，确定与当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高视频资源文件的视频画质。本申请实施例提供的视频处理方法、装置、电子设备以及存储介质根据显示屏和用户的不同距离确定不同的优化参数，以通过与显示屏和用户的距离对应的优化参数对视频资源文件进行显示增强处理，提升视频画面的显示效果。

Description

视频处理方法、装置、电子设备以及存储介质
相关申请的交叉引用
本申请要求于2018年11月27日提交的申请号为CN201811429234.2的中国申请的优先权，其在此出于所有目的通过引用将其全部内容并入本文。
技术领域
本申请涉及电子设备技术领域，更具体地，涉及一种视频处理方法、装置、电子设备以及存储介质。
背景技术
随着科学技术的发展，电子设备已经成为人们日常生活中最常用的电子产品之一。并且，用户经常会通过电子设备玩游戏、看视频等，同时，用户在看视频时电子设备可以对在播放的所有视频进行处理，来提升视频画面的显示效果。
发明内容
鉴于上述问题，本申请提出了一种视频处理方法、装置、电子设备以及存储介质，以解决上述问题。
第一方面，本申请实施例提供了一种视频处理方法，应用于电子设备，所述电子设备包括显示屏，所述方法包括：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离；基于所述当前距离，确定与所述当前距离对应的目标优化参数；基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
第二方面，本申请实施例提供了一种视频处理装置，应用于电子设备，所述电子设备包括显示屏，所述装置包括：检测模块，用于当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离；确定模块，用于基于所述当前距离，确定与所述当前距离对应的目标优化参数；处理模块，用于基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
第三方面，本申请实施例提供了一种电子设备，包括存储器和处理器，所述存储器耦接到所述处理器，所述存储器存储指令，当所述指令由所述处理器执行时所述处理器执行上述方法。
第四方面，本申请实施例提供了一种计算机可读取存储介质，所述计算机可读取存储介质中存储有程序代码，所述程序代码可被处理器调用执行上述方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1示出了本申请实施例提供的视频播放的流程示意图；
图2示出了本申请一个实施例提供的视频处理方法的流程示意图；
图3示出了本申请实施例提供的电子设备播放的视频资源文件没有经过显示增强 处理的示意图；
图4示出了本申请实施例提供的电子设备播放的视频资源文件经过显示增强处理的示意图；
图5示出了本申请又一个实施例提供的视频处理方法的流程示意图；
图6示出了本申请的图5所示的视频处理方法的步骤S230的流程示意图；
图7示出了本申请再一个实施例提供的视频处理方法的流程示意图；
图8示出了本申请另一个实施例提供的视频处理方法的流程示意图；
图9示出了本申请的图8所示的视频处理方法的步骤S420的流程示意图；
图10示出了本申请又再一个实施例提供的视频处理方法的流程示意图；
图11示出了本申请实施例提供的视频处理装置的模块框图；
图12示出了本申请实施例用于执行根据本申请实施例的视频处理方法的电子设备的框图；
图13示出了本申请实施例的用于保存或者携带实现根据本申请实施例的视频处理方法的程序代码的存储单元。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
请参阅图1，图1示出了视频播放的流程。具体地，操作系统在获取到待播放的数据的时候，接下来的工作就是解析音视频数据。一般的视频文件都由视频流和音频流两部分组成，不同的视频格式音视频的封装格式不一样。将音频流和视频流合成文件的过程称为muxer，反之从媒体文件中分离音频流和视频流的过程称为demuxer。播放视频文件就需要从文件流中分离出音频流和视频流，分别对其进行解码，解码后的视频帧可以直接渲染,音频帧可以送到音频输出设备的缓冲区进行播放，当然，视频渲染和音频播放的时间戳需要控制同步。
具体地，视频解码可以包括硬解码和软解码，硬件解码是将原来全部交由中央处理器(Central Processing Unit，CPU)来处理的视频数据的一部分交由图形处理器(Graphics Processing Unit，GPU)来做，而GPU的并行运算能力要远远高于CPU，这样可以大大的降低对CPU的负载，CPU的占用率较低了之后就可以同时运行一些其他的程序了，当然，对于较好的处理器来说，比如i5 2320，或者AMD任何一款四核心处理器来说，既可以进行硬解码，也可以进行软解码。
具体地，如图1所示，多媒体框架(Media Framework)通过与客户端的API接口获取客户端待播放的视频文件，并交由视频编解码器(Video Decode)，其中，Media Framework为Android系统中多媒体框架，MediaPlayer、MediaPlayerService和Stagefrightplayer三个部分构成了Android多媒体的基本框架。多媒体框架部分采用了C/S的结构，MediaPlayer作为C/S结构的Client端，MediaPlayerService和Stagefrightplayer作为C/S结构Server端，承担着播放多媒体文件的责任，通过Stagefrightplayer，Server端完成Client端的请求并作出响应。Video Decode是一款集成了最常用的音频和视频解码与播放的超级解码器，用于将视频数据解码。
其中，软解码，即通过软件让CPU来对视频进行解码处理。而硬解码，指不借助于CPU，而通过专用的子卡设备来独立完成视频解码任务。
不论是硬解码还是软解码，在将视频数据解码之后，会将解码后的视频数据发送至图层传递模块(SurfaceFlinger)，由SurfaceFlinger将解码后的视频数据渲染和合成之后，在显示屏上显示。其中，SurfaceFlinger是一个独立的Service，它接收所有Window的Surface作为输入，根据ZOrder、透明度、大小、位置等参数，计算出每个Surface在最终合成图像中的位置，然后交由HWComposer或OpenGL生成最终的显示Buffer, 然后显示到特定的显示设备上。
如图1所示，软解码中，CPU将视频数据解码之后交给SurfaceFlinger渲染和合成，而硬解码由GPU解码之后，交由SurfaceFlinger渲染和合成。而SurfaceFlinger会调用GPU实现图像的渲染和合成，并在显示屏上显示。
其中，目前电子设备对视频数据的处理方式固定，例如，在电子设备播放视频资源文件时，对该视频文件资源均进行显示增强处理，或者均不进行显示增强处理，并且，在电子设备对视频资源文件进行显示增强处理时，进行显示增强处理的方式相同，不会针对用户与电子设备之间的不同距离选取与之适配的显示增强方式，因此，显示增强处理的效果不理想，用户体验不佳。针对上述问题，发明人经过长期的研究发现，并提出了本申请实施例提供的视频处理方法、装置、电子设备以及存储介质，根据显示屏和用户的不同距离确定不同的优化参数，以通过与显示屏和用户的距离对应的优化参数对视频资源文件进行显示增强处理，提升视频画面的显示效果。其中，具体的视频处理方法在后续的实施例中进行详细的说明。
实施例
请参阅图2，图2示出了本申请一个实施例提供的视频处理方法的流程示意图。所述视频处理方法用于根据显示屏和用户的不同距离确定不同的优化参数，以通过与显示屏和用户的距离对应的优化参数对视频资源文件进行显示增强处理，提升视频画面的显示效果。在具体的实施例中，所述视频处理方法应用于如图11所示的视频处理装置200以及配置有所述视频处理装置200的电子设备100(图12)。下面将以电子设备为例，说明本实施例的具体流程，其中，该电子设备包括显示屏，当然，可以理解的，本实施例所应用的电子设备可以为智能手机、平板电脑、穿戴式电子设备、车载设备、网关等，在此不做具体的限定。下面将针对图2所示的流程进行详细的阐述，所述视频处理方法具体可以包括以下步骤：
步骤S110：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
作为一种方式，电子设备包括显示屏，其中，该显示屏的可显示区域可以用于显示文本、图片、图标或者视频等内容，于本实施例中，所述显示屏用于显示视频资源文件。而伴随着触控技术的发展，越来越多的电子设备所设置的显示屏也可以为触摸屏，在设置触摸屏的情况下，当检测到用户在触摸屏上进行拖曳、单击、双击、滑动等触控操作时，该电子设备可以对用户的触控操作进行响应。
在本实施例中，电子设备播放的视频资源文件可以包括在电子设备的前台播放的视频资源文件、在电子设备的后台播放的视频资源文件以及在电子设备的前台和后台切换播放的视频资源文件，在此不做具体的限定。其中，前台播放的视频资源文件是指通常可以和用户进行交互，能在前台显示的视频资源文件，当它不可见时就会被挂起；后台播放的视频资源文件是指和用户交互非常有限，除了配置期间，其生存期的其他时间都是隐藏的；在电子设备的前台和后台切换播放的视频资源文件是指可以在前台以及后台之间随意切换的视频资源文件。可选的，在本实施例中，所述电子设备播放的视频资源文件为在所述电子设备的前台播放的视频资源文件。
其中，该视频资源文件可以为本地资源文件，也可以为网络资源文件，在此不做限定。具体地，若所述视频资源文件为本地资源文件，那么，该视频资源文件可以由电子设备预先从服务器下载并存储在本地，在播放所述视频资源文件时，电子设备可以直接从本地读取并播放，例如，可以直接从电子设备的内存的读取并播放。作为另一种方式，若所述视频资源文件为网络资源文件，那么，该视频资源文件可以由电子设备从服务器在线获取并播放，其中，电子设备可以通过无线网络从服务器在线获取视频资源文件，也可以通过数据网络从服务器在线获取视频资源文件，在此不做限定，其中，数据网络可以包括2G网络、3G网络、4G网络或5G网络。
另外，当视频资源文件为网络资源文件时，电子设备可以安装有视频播放类应用程序，并在电子设备的桌面显示该视频播放类应用程序对应的应用程序图标，当检测到用户针对该应用程序图标的触控操作时，电子设备可以作为响应运行该视频播放类应用程序，并通过网络从服务器获取视频资源文件并播放；作为另一种方式，电子设备可以安装有浏览器，并基于用户操作通过该浏览器的网页进入视频播放界面，并在该视频播放界面下从服务器获取视频资源文件并播放。
在本实施例中，当确定所述电子设备播放视频资源文件时，可以对显示屏和用户之间的当前距离进行检测。具体地，该电子设备还可以包括距离传感器和前置摄像头等，例如，可以包括红外传感器、高清摄像头、超清摄像头等，进而可以通过距离传感器和/或前置摄像头对显示屏和用户之间的当前距离进行检测，在此不再赘述。
步骤S120：基于所述当前距离，确定与所述当前距离对应的目标优化参数。
在本实施例中，电子设备可以存储有多个距离和多个优化参数，以及存储有多个距离和多个优化参数之间的对应关系，其中，该对应关系可以包括一个距离对应一个或多个优化参数，也可以包括一个优化参数对应一个或多个距离，在此不做限定。其中，距离和优化参数之间的对应关系可以由用户预先设定后存储在电子设备、可以由电子设备预先自动设定后存储、也可以由服务器预先设定完成后发送至电子设备，在此不做限定。其中，在本实施例中，所述多个优化参数中的每个优化参数对视频资源文件的优化效果可以不同，也就是说，通过所述多个优化参数中的每个优化参数对同一视频资源文件进行处理，所达到的显示增强效果可以不同。
其中，优化参数可以包括曝光度增强、去燥、边缘锐化、对比度增加以及饱和度增加等，且目标优化参数可以包括曝光度增强、去燥、边缘锐化、对比度增加以及饱和度增加中的一个或多个的组合，例如，该目标优化参数为曝光度增强、该目标优化参数为去燥、该目标优化参数包括曝光度增强和去燥、该目标优化参数包括曝光度增强、去燥、边缘锐化、对比度增加以及饱和度增加等。
具体地，电子设备显示的视频资源文件为经过解码后的图像内容，由于经过解码之后的图像内容为RGBA格式的数据，为了对图像内容优化，需要将RGBA格式的数据转换为HSV格式，具体地，获取图像内容的直方图，对直方图统计从而获取将RGBA格式的数据转换为HSV格式的参数，在根据该参数将RGBA格式的数据转换为HSV格式。
其中，曝光度增强，用于提高图像的亮度，则可以通过图像的直方图，将亮度值交底的区域增加亮度值，另外，也可以是通过非线性叠加，增加图像亮度，具体地，I表示要处理的较暗图像，T表示处理后的比较亮的图像，则曝光度增强的方式为T(x)＝I(x)+(1-I(x))*I(x)。其中，T和I都是[0,1]取值的图像。如果一次效果不好算法可以多次迭代。
其中，对图像内容去噪用于去除图像的噪声，具体地，图像在生成和传输过程中常常因受到各种噪声的干扰和影响而是图像降质，这对后续图像的处理和图像视觉效应将产生不利影响。噪声种类很多，比如：电噪声，机械噪声，信道噪声和其他噪声。因此，为了抑制噪声，改善图像质量，便于更高层次的处理，必须对图像进行去噪预处理。从噪声的概率分布情况来看，可分为高斯噪声、瑞利噪声、伽马噪声、指数噪声和均匀噪声。
具体地，可以通过高斯滤波器对图像去噪，其中，高斯滤波器是一种线性滤波器，能够有效的抑制噪声，平滑图像。其作用原理和均值滤波器类似，都是取滤波器窗口内的像素的均值作为输出。其窗口模板的系数和均值滤波器不同，均值滤波器的模板系数都是相同的为1；而高斯滤波器的模板系数，则随着距离模板中心的增大而系数减小。所以，高斯滤波器相比于均值滤波器对图像模糊程度较小。
例如，产生一个5×5的高斯滤波窗口，以模板的中心位置为坐标原点进行取样。将模板各个位置的坐标带入高斯函数，得到的值就是模板的系数。再将该高斯滤波窗口与图像卷积就能够对图像去噪。
其中，边缘锐化用于使模糊的图像变得更加清晰起来。图像锐化一般有两种方法：一种是微分法，另外一种是高通滤波法。
其中，对比度增加用于增强图像的画质，使得图像内的颜色更加鲜明，具体地，对比度拉伸是图像增强的一种方法，也属于灰度变换操作。通过灰度变换，将灰度值拉伸到整个0-255的区间，那么其对比度显然是大幅增强的。可以用如下的公式来将某个像素的灰度值映射到更大的灰度空间：
I(x,y)＝[(I(x,y)-Imin)/(Imax-Imin)](MAX-MIN)+MIN；
其中Imin，Imax是原始图像的最小灰度值和最大灰度值，MIN和MAX是要拉伸到的灰度空间的灰度最小值和最大值。
因此，在本实施例中，在确定电子设备的显示屏与用户的当前距离后，可以基于距离与优化参数的对应关系确定与该当前距离对应的优化参数，并将其作为目标优化参数，可以理解的，目标优化参数可以包括一个优化参数，也可以包括多个优化参数，在此不做限定。
步骤S130：基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
进一步地，在确定电子设备和用户的当前距离对应的目标优化参数后，基于该目标优化参数对视频资源文件进行显示增强处理，其中，该显示增强处理通过确定的目标优化参数对视频资源文件中的图像进行处理，提高视频资源文件的视频画质，以通过与该电子设备和用户的当前距离适配的优化参数对视频资源文件进行显示增强处理，提升用户获取的视频画面的视觉效果，其中，该画质包括清晰度、锐度、镜头畸变、色彩、解析度、色域范围、纯度等，其不同的组合方式可以有不同的显示增强效果。其中，需要说明的是，对视频资源文件的显示增强处理还可以理解为在对视频资源文件进行正式处理之前所做的一系列操作，包括图像增强和图像复原等，图像增强是通过一定手段对原图像附加一些信息或者变换数据，有选择地突出图像中感兴趣的特征或者抑制图像中某些不需要的特征，使图像与目标优化参数相匹配，从而改善图像质量，加强视觉效果。
例如，当所述电子设备正常播放所述视频资源文件，即没有对该视频资源文件进行显示增强处理时，该电子设备的显示屏可以显示如图3所示的画面，在这种情况下，用户P获取的是没有经过显示增强处理的视频资源文件，而当所述电子设备通过目标优化参数对视频资源文件进行显示增强处理后，该电子设备的显示屏可以显示如图4所示的画面，在这种情况下，用户P获取的是经过显示增强处理的视频资源文件。在本实施例中，由于图4所示的视频资源文件是经过显示增强处理的，而图3所示的视频资源文件是没有经过显示增强处理的，因此，在用户与电子设备的显示屏之间的当前距离一致的情况下，经过显示增强处理的视频资源文件的图像质量更佳，显示效果更好，用户可以获取显示效果更优的视频资源文件，可以提高用户体验。
本申请一个实施例提供的视频处理方法，当电子设备播放视频资源文件时，检测该显示屏和用户之间的当前距离，基于该当前距离，确定与当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高视频资源文件的视频画质，从而根据显示屏和用户的不同距离确定不同的优化参数，以通过与显示屏和用户的距离对应的优化参数对视频资源文件进行显示增强处理，提升视频画面的显示效果。
请参阅图5，图5示出了本申请又一个实施例提供的视频处理方法的流程示意图。该方法应用于电子设备，该电子设备包括显示屏，下面将针对图5所示的流程进行详细的阐述，所示视频处理方法具体可以包括以下步骤：
步骤S210：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
其中，步骤S210的具体描述请参阅步骤S110，在此不再赘述。
步骤S220：判断所述当前距离是否小于第一距离阈值。
作为一种方式，电子设备设置有第一距离阈值，该第一距离阈值用于作为电子设备的显示屏与用户的当前距离的判断依据。其中，可以理解的，该第一距离阈值可以由电子设备预先存储在本地，也可以在判断时再进行设置，在此不做限定。另外，该第一距离阈值可以由电子设备自动配置、可以由用户手动设置、也可以由服务器配置完成后传输至电子设备，在此不做限定。在本实施例中，该第一距离阈值可以包括1m、0.8m等，在此不做限定。在本实施例中，当获取所述电子设备和用户的当前距离后，将该当前距离与第一距离阈值进行比较，以判断该当前距离是否小于第一距离阈值。
步骤S230：当所述当前距离小于所述第一距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
作为一种方式，当确定所述当前距离不小于第一距离阈值时，例如，当所述当前距离不小于1m时，表征该电子设备与用户的当前距离过远，可以禁止所述电子设备对视频资源文件进行显示增强处理，以降低所述电子设备的功耗。
作为另一种方式，当确定所述当前距离小于第一距离阈值时，例如，当所述当前距离小于1m时，表征该显示屏与用户的当前距离较近，可以基于该当前距离确定目标优化参数对视频资源文件进行显示增强处理。在本实施例中，可以从多个显示增强方式中确定与该当前距离对应的目标显示增强方式，以通过该目标显示增强方式对视频资源文件进行显示增强处理，其中，该目标增强方式至少包括目标优化参数，且多个显示增强方式中的每个显示增强方式对视频资源文件处理得到的视频画质不同。例如，该目标显示增强方式包括第一目标显示增强方式和第二目标显示增强方式，且第一目标显示增强方式至少包括由曝光度增强、去燥、边缘锐化、对比度增加以及饱和度增加组成的目标优化参数，第二目标显示增强方式至少包括由曝光度增强和去燥组成的目标优化参数，那么，可以理解的，通过该第一目标显示增强方式对视频资源文件处理得到的视频画质优于通过该第二目标显示增强方式对视频资源文件处理得到的视频画质。
具体地，在本实施例中，所述电子设备可以存储有多个显示增强方式和多个距离，并存储有所述多个显示增强方式和多个距离的对应关系，其中，该对应关系可以包括一个显示增强方式对应一个或多个距离，也可以包括一个距离对应一个或多个显示增强方式，在此不做限定。其中，显示增强方式和距离之间的对应关系可以由用户预先设定后存储在电子设备、可以由电子设备预先自动设定后存储、也可以由服务器预先设定完成后发送至电子设备，在此不做限定。
其中，在本实施例中，所述多个显示增强方式中的每个显示增强方式对视频资源文件处理得到的视频画质不同，也就是说，通过所述多个显示增强方式中的每个显示增强方式对同一视频资源文件进行处理，所达到的显示增强效果不同，例如，通过每个显示增强方式所采用的优化参数不同、优化参数的数量不同、优化参数的优化方式不同等，可以达到对同一视频资源文件的优化效果不同。
作为一种方式，所述电子设备可以创建映射关系表，该映射关系表中可以包括多个显示增强方式和多个距离的对应关系，例如，所述映射关系表可以如表1所示，其中，所述显示增强方式用A表示，距离用B表示，那么，通过所述映射关系表，该电子设备可以对应设置显示增强方式和距离的对应关系并存储在电子设备本地。
表1
显示增强方式 距离
A1 B1
A2 B2
A3 B3
A4 B4
进一步地，在本实施例中，在确定所述电子设备和用户的当前距离后，可以从所述映射关系表中查找与该当前距离对应的距离，然后再基于映射关系表中的显示增强方式和距离的对应关系，可以查找与所述距离对应的显示增强方式，将该显示增强方式确定为目标显示增强方式。
请参阅图6，图6示出了本申请的图5所示的视频处理方法的步骤S230的流程示意图。下面将针对图6所示的流程进行详细的阐述，所述方法具体可以包括以下步骤：
步骤S231：当所述当前距离小于所述距离阈值时，对所述用户的生物特征数据进行识别获得识别结果。
作为一种方式，在确定所述电子设备的显示屏和用户的当前距离后，可能存在用户面对该显示屏的情况，也可能存在用户没有面对该显示屏的情况，可以理解的，当用户面对该显示屏时，可以表征该用户的注意力集中在电子设备播放的视频资源文件上，因此，对该视频资源文件进行显示增强处理可以提升用户体验，当用户没有面对显示屏时，例如，当用户侧对显示屏或背对显示屏时，可以表征该用户的注意力不在电子设备播放的视频资源文件上，因此，对视频资源文件进行显示增强处理会造成电子设备的功耗，可以禁止对视频资源文件进行显示增强处理，以降低电子设备的功耗。在本实施例中，为了提高对视频资源文件进行显示增强处理的合理性，可以对该用户的生物特征数据进行识别以获得识别结果，可以理解的，根据该识别结果，可以知道该用户是否面对显示屏。
步骤S232：判断所述识别结果是否包括人脸信息或虹膜信息。
具体地，可以通过前置摄像头对用户的图像进行采集，并通过图像识别技术或机器学习技术对采集的用户图像进行识别得到识别结果，并判断该识别结果是否包括人脸信息或虹膜信息，可以理解的，当所述识别结果中包括人脸信息和虹膜信息中的至少一种时，可以认为所述用户面对该显示屏，当所述识别结果不包括人脸信息和虹膜信息时，可以认为所述用户没有面对该显示屏。
步骤S233：当所述识别结果包括人脸信息和虹膜信息中的至少一种时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
在本实施例中，若确定该识别结果包括人脸信息和虹膜信息中的至少一种，表征用户面对该显示屏，因此，可以对视频资源文件进行显示增强处理，以提升用户体验。
步骤S240：基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
其中，步骤S240的具体描述请参阅步骤S130，在此不再赘述。
本申请又一个实施例提供的视频处理方法，当电子设备播放视频资源文件时，检测该显示屏和用户之间的当前距离，判断该当前距离是否小于第一距离阈值，当该当前距离小于该第一距离阈值时，基于该当前距离，确定与当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高视频资源文件的视频画质。相较于图2所示的视频处理方法，本实施例在显示屏与用户之间的当前距离小于第一距离阈值时对视频资源文件进行显示增强处理，以避免在显示屏与用户的距离过大时对视频资源文件进行显示增强处理而增加电子设备的功耗。
请参阅图7，图7示出了本申请再一个实施例提供的视频处理方法的流程示意图。该方法应用于电子设备，该电子设备包括显示屏，下面将针对图7所示的流程进行详细的阐述，所述方法具体可以包括以下步骤：
步骤S310：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
步骤S320：判断所述当前距离是否小于第一距离阈值。
其中，步骤S310-步骤S320的具体描述请参阅步骤S210-步骤S220，在此不再赘述。
步骤S330：当所述当前距离小于所述第一距离阈值时，判断所述当前距离是否大于第二距离阈值，其中，所述第二距离阈值小于所述第一距离阈值。
作为一种方式，电子设备还设置有第二距离阈值，且该第二距离阈值小于第一距离阈值，该第二距离阈值用于作为电子设备的显示屏与用户的当前距离的判断依据。其中，可以理解的，该第二距离阈值可以由电子设备预先存储在本地，也可以在判断时再进行设置，在此不做限定。另外，该第二距离阈值可以由电子设备自动配置、可以由用户手动设置、也可以由服务器配置完成后传输至电子设备，在此不做限定。在本实施例中，该第二距离阈值可以包括0.3m、0.4m等，在此不做限定。在本实施例中，当确定电子设备的显示屏和用户的当前距离小于第一距离阈值后，将该当前距离与第二距离阈值进行比较，以判断该当前距离是否满足小于第一距离阈值且大于第二距离阈值。
步骤S340：当所述当前距离大于所述第二距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
作为一种方式，当确定所述当前距离不大于第二距离阈值时，例如，当所述当前距离不大于0.3m时，表征该电子设备与用户的当前距离过近，可以禁止所述电子设备对视频资源文件进行显示增强处理，以降低电子设备的功耗。
作为另一种方式，当确定所述当前距离小于第一距离阈值且大于第二距离阈值时，例如，当所述当前距离为0.6m时，表征该显示屏与用户的当前距离适中，可以基于当前距离确定目标优化参数对视频资源文件进行显示增强处理。在本实施例中，当该当前距离大于第二距离阈值且小于第一距离阈值时，当前距离越小，表征电子设备越靠近显示屏，该用户看到的视频资源文件越清晰，那么其目标优化参数对应的视频画质可以越低，以降低电子设备的功耗；当前距离越大，表征电子设备越远离显示屏，该用户看到的视频资源文件越模糊，那么其目标优化参数对应的视频画质可以越高，以提升视频资源文件的显示效果，提升用户体验。
步骤S350：基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
其中，步骤S350的具体描述请参阅步骤S130，在此不再赘述。
本申请再一个实施例提供的视频处理方法，当电子设备播放视频资源文件时，检测该显示屏与用户之间的当前距离，判断该当前距离是否小于第一距离阈值，当该当前距离小于该第一距离阈值时，判断该当前距离是否大于第二距离阈值，其中，该第二距离阈值小于第一距离阈值，当该当前距离大于第二距离阈值时，基于该当前距离，确定该当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高该视频资源文件的视频画质。相较于图2所示的视频处理方法，本实施例在显示屏与用户之间的当前距离小于第一距离阈值且大于第二距离阈值时对视频资源文件进行显示增强处理，以避免在显示屏与用户的距离过大或过小时对视频资源文件进行显示增强处理而增加电子设备的功耗。
请参阅图8，图8示出了本申请另一个实施例提供的视频处理方法的流程示意图。该方法应用于电子设备，该电子设备包括显示屏，下面将针对图8所示的流程进行详细的阐述，所述视频处理方法具体可以包括以下步骤：
步骤S410：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
其中，步骤S410的具体描述请参阅步骤S110，在此不再赘述。
步骤S420：检测所述显示屏和所述用户保持所述当前距离不变的时长。
在本实施例中，在检测到电子设备的显示屏和用户的当前距离后，对显示屏和该用户 保持该当前距离不变的时长进行检测。具体地，作为一种方式，可以在检测到显示屏和用户的当前距离时，启动计时器并继续检测所述显示屏和用户的当前距离，若检测到所述当前距离保持不变，则从计时器处得到的时长可以视为所述显示屏和用户的当前距离保持不变的时长，若检测到所述当前距离改变时，则控制所述计时器重新计时。
请参阅图9，图9示出了本申请的图8所示的视频处理方法的步骤S420的流程示意图。下面将针对图9所示的流程进行详细的阐述，所述方法具体可以包括以下步骤：
步骤S421：检测所述显示屏和所述用户的当前距离的变化值。
作为一种方式，由于所述显示屏和所述用户之间的当前距离随时可能发生变化，即显示屏与用户之间的当前距离相对于上一时刻可能发生变化，产生变化值，在本实施例中，该变化值可以视为绝对值。例如，所述显示屏和所述用户在上一时刻的当前距离为0.6m，在当前时刻的当前距离为0.5m，那么，可以知道所述显示屏和所述用户的当前距离的变化值为0.1m；又例如，所述显示屏和所述用户在上一时刻的当前距离为0.6m，在当前时刻的当前距离为0.7m，那么，可以知道所述显示屏和所述用户的当前距离的变化值也为0.1m。
步骤S422：判断所述变化值是否小于变化阈值。
在本实施例中，电子设备设置有变化阈值，该变化阈值用于作为显示屏和用户之间的当前距离的变化值的判断依据。其中，该变化阈值可以由电子设备预先存储在本地，也可以在判断时再进行设置，在此不做限定。另外，该变化阈值可以由电子设备自动配置、可以由用户手动设置、也可以由服务器配置完成后传输至电子设备，在此不做限定，其中，该变化阈值可以包括0.05m，0.1m等。作为一种方式，在获取所述显示屏和用户之间的当前距离的变化值后，可以将该变化值与变化阈值进行比较，以判断该变化值是否小于该变化阈值。
步骤S423：当所述变化值小于所述变化阈值时，确定所述显示屏和所述用户保持所述当前距离不变。
其中，若所述变化值小于变化阈值，可以认为所述电子设备的显示屏和用户之间的当前距离在可允许的小范围内变化，这种变化可能是由于环境因素造成而并非用户刻意改变，因此，可以确定所述显示屏和所述用户保持该当前距离不变。
步骤S424：检测所述显示屏和所述用户保持所述当前距离不变的时长。
步骤S430：判断所述时长是否大于时长阈值。
其中，电子设备设置有时长阈值，该时长阈值用于作为显示屏和所述用户保持所述当前距离不变的时长的判断依据。其中，该时长阈值可以由电子设备预先存储在本地，也可以在判断时再进行设置，在此不做限定。另外，该时长阈值可以由电子设备自动配置、可以由用户手动设置、也可以由服务器配置完成后传输至电子设备，在此不做限定，其中，该时长阈值可以包括10s，30s等。作为一种方式，在获取所述显示屏和所述用户保持所述当前距离不变的时长后，可以将该时长与时长阈值进行比较，以判断该时长是否大于该时长阈值。
步骤S440：当所述时长大于所述时长阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
其中，当确定所述时长大于时长阈值时，例如，当所述时长大于10s时，表征该用户期望在该距离下观看所述视频资源文件，因此，可以基于所述当前距离，确定与当前距离对应的目标优化参数对视频资源文件进行显示增强处理。
步骤S450：基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
其中，步骤S450的具体描述请参阅步骤S130，在此不再赘述。
本申请另一个实施例提供的视频处理方法，当电子设备播放视频资源文件时，检测该显示屏与用户之间的当前距离，检测该显示屏与用户保持该当前距离不变的时长， 判断该时长是否大于时长阈值，当该时长大于时长阈值时，基于该当前距离，确定与当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理视频资源文件中的图像提高视频资源文件的视频画质。相较于图2所示的视频处理方法，本实施例在显示屏与用户之间的当前距离保持不变的时长大于时长阈值时，对视频资源文件进行显示增强处理，以避免频繁更改目标优化参数，降低电子设备的功耗。
请参阅图10，图10示出了本申请又再一个实施例提供的视频处理方法的流程示意图。该方法应用于电子设备，该电子设备包括显示屏，下面将针对图10所示的流程进行详细的阐述，所述视频处理方法具体可以包括以下步骤：
步骤S510：当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
其中，步骤S510的具体描述请参阅步骤S110，在此不再赘述。
步骤S520：检测所述电子设备的剩余电量。
其中，该剩余电量的检测方法可以包括电压测量法、电池建模法以及库仑计等，具体地，当通过电压测量法对电子设备的剩余电量进行检测时，可以通过简单监控电子设备的电池的电压而获得剩余电量，虽然该方法较为简单，但是，由于电池的电量和电压不是线性关系的，所以通过电压测量法测得的剩余电量精确度较低；当通过电池建模法对电子设备的剩余电量进行检测时，可以是根据电子设备的电池的放电曲线来建立一个数据表，数据表中可以标明不同电压下的电量值，从而可以提高剩余电量的测量精度；当通过库仑计对电子设备的剩余电量进行检测时，可以在电子设备的电池的正极和负极串联一个电流检测电阻，当有电流流经电阻时就会产生Vsense，通过检测Vsense就可以计算出流过电池的电流，进而可以精确的跟踪电池的电量变化，提高剩余电量的检测精度。
进一步地，以Android系统为例，可以通过使用Broadcast Receiver的特性来获取电子设备的电池的剩余电量，注册Broadcast Receiver时设置的Intent Filter来获取系统发出的Intent.ACTION_BATTERY_CHANGED，然后以此来获取电池的剩余电量。
步骤S530：基于所述当前距离和所述剩余电量，确定与所述当前距离和所述剩余电量对应的目标优化参数。
在本实施例中，电子设备可以存储有当前距离、剩余电量以及优化参数三者之间的对应关系，同样的，当前距离、剩余电量以及优化参数三者之间的对应关系可以由用户预先设定后存储在电子设备、可以由电子设备预先自动设定后存储、也可以由服务器预先设定完成后发送至电子设备，在此不做限定。因此，在获取所述当前距离和剩余电量后，可以基于当前距离、剩余电量以及优化参数三者之间的对应关系查找与当前距离和剩余电量均对应的目标优化参数。
可以理解的，电子设备的剩余电量越高，表征电子设备的剩余电量足够支撑较大的功耗，那么，该剩余电量对应的目标优化参数对应的画面优化质量可以越高，电子设备的剩余电量越低，表征电子设备的剩余电量不足够支撑较大的功耗，那么，该剩余电量对应的目标优化参数对应的画面优化质量可以越低。因此，在本实施例中，基于当前距离和剩余电量确定的目标优化参数更加合理，提升用户体验。
步骤S540：基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
其中，步骤S540的具体描述请参阅步骤S130，在此不再赘述。
本申请又再一个实施例提供的视频处理方法，当该电子设备播放视频资源文件时，检测该显示屏和用户之间的当前距离，检测该电子设备的剩余电量，基于该当前距离和剩余电量，确定与当前距离和剩余电量对应的目标优化参数，基于该目标优化参数对该视频资 源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高视频资源文件的视频画质。相较于图2所示的视频处理方法，本实施例还对电子设备的剩余电量进行检测，并基于当前距离和剩余电量确定目标优化参数对视频资源文件进行显示增强处理，以提升显示增强处理的合理性。
请参阅图11，图11示出了本申请实施例提供的视频处理装置200的模块框图。所述视频处理装置200应用于上述电子设备，该电子设备包括显示屏，下面将针对图11所示的框图进行阐述，所述视频处理装置200包括：检测模块210、确定模块220以及处理模块230，其中：
检测模块210，用于当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离。
确定模块220，用于基于所述当前距离，确定与所述当前距离对应的目标优化参数。进一步地，所述确定模块220包括：第一当前距离判断子模块、第一确定子模块、第二当前距离判断子模块、第二确定子模块、时长检测子模块、时长判断子模块、第三确定子模块、剩余电量检测子模块以及第四确定子模块，其中：
第一当前距离判断子模块，用于判断所述当前距离是否小于第一距离阈值。
第一确定子模块，用于当所述当前距离小于所述第一距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。进一步地，所述第一确定子模块包括：识别结果获取单元、识别结果判断单元以及第一确定单元，其中：
识别结果获取单元，用于当所述当前距离小于所述距离阈值时，对所述用户的生物特征数据进行识别获得识别结果。
识别结果判断单元，用于判断所述识别结果是否包括人脸信息或虹膜信息。
第一确定单元，用于当所述识别结果包括人脸信息和虹膜信息中的至少一种时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
第二当前距离判断子模块，用于判断所述当前距离是否大于第二距离阈值，其中，所述第二距离阈值小于所述第一距离阈值。
第二确定子模块，用于当所述当前距离大于所述第二距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
时长检测子模块，用于检测所述显示屏和所述用户保持所述当前距离不变的时长。进一步地，所述时长检测子模块包括：变化值检测单元、变化值判断单元、当前距离确定单元以及时长检测单元，其中：
变化值检测单元，用于检测所述显示屏和所述用户的当前距离的变化值。
变化值判断单元，用于判断所述变化值是否小于变化阈值。
当前距离确定单元，用于当所述变化值小于所述变化阈值时，确定所述显示屏和所述用户保持所述当前距离不变。
时长检测单元，用于检测所述显示屏和所述用户保持所述当前距离不变的时长。
时长判断子模块，用于判断所述时长是否大于时长阈值。
第三确定子模块，用于当所述时长大于所述时长阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
剩余电量检测子模块，用于检测所述电子设备的剩余电量。
第四确定子模块，用于基于所述当前距离和所述剩余电量，确定与所述当前距离和所述剩余电量对应的目标优化参数。
处理模块230，用于基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述装置和模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，模块相互之间的耦合可以是电性，机械或其它形式的耦合。
另外，在本申请各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
请参阅图12，其示出了本申请实施例提供的一种电子设备100的结构框图。该电子设备100可以是智能手机、平板电脑、电子书等能够运行应用程序的电子设备。本申请中的电子设备100可以包括一个或多个如下部件：处理器110、存储器120、显示屏130、编解码器140以及一个或多个应用程序，其中一个或多个应用程序可以被存储在存储器120中并被配置为由一个或多个处理器110执行，一个或多个程序配置用于执行如前述方法实施例所描述的方法。
其中，处理器110可以包括一个或者多个处理核。处理器110利用各种接口和线路连接整个电子设备100内的各个部分，通过运行或执行存储在存储器120内的指令、程序、代码集或指令集，以及调用存储在存储器120内的数据，执行电子设备100的各种功能和处理数据。可选地，处理器110可以采用数字信号处理(Digital Signal Processing，DSP)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)、可编程逻辑阵列(Programmable Logic Array，PLA)中的至少一种硬件形式来实现。处理器110可集成中央处理器(Central Processing Unit，CPU)、图形处理器(Graphics Processing Unit，GPU)和调制解调器等中的一种或几种的组合。其中，CPU主要处理操作系统、用户界面和应用程序等；GPU用于负责显示内容的渲染和绘制；调制解调器用于处理无线通信。可以理解的是，上述调制解调器也可以不集成到处理器110中，单独通过一块通信芯片进行实现。
存储器120可以包括随机存储器(Random Access Memory，RAM)，也可以包括只读存储器(Read-Only Memory)。存储器120可用于存储指令、程序、代码、代码集或指令集。存储器120可包括存储程序区和存储数据区，其中，存储程序区可存储用于实现操作系统的指令、用于实现至少一个功能的指令(比如触控功能、声音播放功能、图像播放功能等)、用于实现下述各个方法实施例的指令等。存储数据区还可以存储终端100在使用中所创建的数据(比如电话本、音视频数据、聊天记录数据)等。
所述编解码器140可以用于对视频数据进行编码或解码，然后将解码后的视频数据传输到显示屏130进行显示，其中，该编解码器140可以为GPU、专用的DSP、FPGA、ASIG芯片等。
请参阅图13，其示出了本申请实施例提供的一种计算机可读存储介质的结构框图。该计算机可读介质300中存储有程序代码，所述程序代码可被处理器调用执行上述方法实施例中所描述的方法。
计算机可读存储介质300可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。可选地，计算机可读存储介质300包括非易失性计算机可读介质(non-transitory computer-readable storage medium)。计算机可读存储介质300具有执行上述方法中的任何方法步骤的程序代码310的存储空间。这些程序代码可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。程序代码310可以例如以适当形式进行压缩。
综上所述，本申请实施例提供的视频处理方法、装置、电子设备以及存储介质，当电子设备播放视频资源文件时，检测该显示屏和用户之间的当前距离，基于该当前距离，确定与当前距离对应的目标优化参数，基于该目标优化参数对该视频资源文件进行显示增强处理，其中，该显示增强处理通过该目标优化参数处理该视频资源文件中的图像提高视频资源文件的视频画质，从而根据显示屏和用户的不同距离确定不同 的优化参数，以通过与显示屏和用户的距离对应的优化参数对视频资源文件进行显示增强处理，提升视频画面的显示效果。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不驱使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (20)

  1. 一种视频处理方法，其特征在于，应用于电子设备，所述电子设备包括显示屏，所述方法包括：
    当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离；
    基于所述当前距离，确定与所述当前距离对应的目标优化参数；
    基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
  2. 根据权利要求1所述的方法，其特征在于，所述基于所述当前距离，确定与所述当前距离对应的目标优化参数，包括：
    判断所述当前距离是否小于第一距离阈值；
    当所述当前距离小于所述第一距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
  3. 根据权利要求2所述的方法，其特征在于，所述当所述当前距离小于所述距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数，包括：
    当所述当前距离小于所述距离阈值时，对所述用户的生物特征数据进行识别获得识别结果；
    判断所述识别结果是否包括人脸信息或虹膜信息；
    当所述识别结果包括人脸信息和虹膜信息中的至少一种时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
  4. 根据权利要求3所述的方法，其特征在于，所述对所述用户的生物特征数据进行识别获得识别结果，包括：
    对用户的图像进行采集；
    对采集到的用户图像进行识别获得识别结果。
  5. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    判断所述当前距离是否大于第二距离阈值，其中，所述第二距离阈值小于所述第一距离阈值；
    当所述当前距离大于所述第二距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
  6. 根据权利要求5所述的方法，其特征在于，当所述当前距离大于所述第二距离阈值时，所述当前距离越小，所述目标优化参数对应的视频画质越低。
  7. 根据权利要求1所述的方法，其特征在于，所述基于所述当前距离，确定与所述当前距离对应的目标优化参数，包括：
    检测所述显示屏和所述用户保持所述当前距离不变的时长；
    判断所述时长是否大于时长阈值；
    当所述时长大于所述时长阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
  8. 根据权利要求7所述的方法，其特征在于，所述检测所述显示屏和所述用户保持所述当前距离不变的时长，包括：
    启动计时器，并继续检测所述显示屏和所述用户的当前距离；
    当检测到所述当前距离保持不变时，获取计时器的时长；
    将所述时长作为所述显示屏和所述用户保持所述当前距离不变的时长。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    当检测到所述当前距离改变时，控制所述计时器重新计时。
  10. 根据权利要求7所述的方法，其特征在于，所述检测所述显示屏和所述用户保持所述 当前距离不变的时长，包括：
    检测所述显示屏和所述用户的当前距离的变化值；
    判断所述变化值是否小于变化阈值；
    当所述变化值小于所述变化阈值时，确定所述显示屏和所述用户保持所述当前距离不变；
    检测所述显示屏和所述用户保持所述当前距离不变的时长。
  11. 根据权利要求1-10任一项所述的方法，其特征在于，所述方法还包括：
    检测所述电子设备的剩余电量；
    基于所述当前距离和所述剩余电量，确定与所述当前距离和所述剩余电量对应的目标优化参数。
  12. 根据权利要求11所述的方法，其特征在于，所述基于所述当前距离和所述剩余电量，确定与所述当前距离和所述剩余电量对应的目标优化参数，包括：
    基于所述当前距离、所述剩余电量以及优化参数三者之间的对应关系，查找与所述当前距离和所述剩余电量均对应的目标优化参数。
  13. 根据权利要求1-12任一项所述的方法，其特征在于，所述基于所述当前距离，确定与所述当前距离对应的目标优化参数，包括：
    基于距离与优化参数的对应关系，确定与所述当前距离对应的优化参数；
    将所述与所述当前距离对应的优化参数作为目标优化参数。
  14. 根据权利要求1-13任一项所述的方法，其特征在于，所述目标优化参数包括曝光度增强、去燥、边缘锐化、对比度增加以及饱和度增加中的一个或多个的组合。
  15. 根据权利要求1所述的方法，其特征在于，所述检测所述显示屏和用户之间的当前距离之后，还包括：
    从多个显示增强方式中确定与所述当前距离对应的目标显示增强方式；
    基于所述目标显示增强方式对所述视频资源文件进行显示增强处理。
  16. 根据权利要求15所述的方法，其特征在于，所述从多个显示增强方式中确定与所述当前距离对应的目标显示增强方式，包括：
    从映射关系表中查找与所述当前距离对应的预存距离，其中，所述映射关系表包括多个显示增强方式和多个距离的对应关系；
    基于所述映射关系表，查找与所述预存距离对应的显示增强方式；
    将所述预存距离对应的显示增强方式确定为目标显示增强方式。
  17. 一种视频处理装置，其特征在于，应用于电子设备，所述电子设备包括显示屏，所述装置包括：
    检测模块，用于当所述电子设备播放视频资源文件时，检测所述显示屏和用户之间的当前距离；
    确定模块，用于基于所述当前距离，确定与所述当前距离对应的目标优化参数；
    处理模块，用于基于所述目标优化参数对所述视频资源文件进行显示增强处理，其中，所述显示增强处理通过所述目标优化参数处理所述视频资源文件中的图像提高所述视频资源文件的视频画质。
  18. 根据权利要求17所述的装置，其特征在于，所述确定模块包括：
    判断子模块，用于判断所述当前距离是否小于第一距离阈值；
    确定子模块，用于当所述当前距离小于所述第一距离阈值时，基于所述当前距离，确定与所述当前距离对应的目标优化参数。
  19. 一种电子设备，其特征在于，包括存储器和处理器，所述存储器耦接到所述处理器，所述存储器存储指令，当所述指令由所述处理器执行时所述处理器执行如权利要求1-16任一项所述的方法。
  20. 一种计算机可读取存储介质，其特征在于，所述计算机可读取存储介质中存储有程序代码，所述程序代码可被处理器调用执行如权利要求1-16任一项所述的方法。
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