CN112584230A - Multimedia processing method and video processing method, device and readable storage medium - Google Patents
Multimedia processing method and video processing method, device and readable storage medium Download PDFInfo
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- CN112584230A CN112584230A CN201910921495.4A CN201910921495A CN112584230A CN 112584230 A CN112584230 A CN 112584230A CN 201910921495 A CN201910921495 A CN 201910921495A CN 112584230 A CN112584230 A CN 112584230A
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- 238000003672 processing method Methods 0.000 title claims description 19
- 238000003860 storage Methods 0.000 title claims description 6
- 238000005457 optimization Methods 0.000 claims abstract description 67
- 230000000694 effects Effects 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 26
- 238000012805 post-processing Methods 0.000 claims description 17
- 238000013507 mapping Methods 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
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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
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
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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
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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
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4852—End-user interface for client configuration for modifying audio parameters, e.g. switching between mono and stereo
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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
- H04N21/47—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
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Abstract
The invention provides a video processing technology, which is characterized in that each terminal is configured with a display control configuration in advance, the display control configuration records parameters for reflecting the display effect of the terminal and parameters of computing capability, for a decoded video on the terminal, the image quality optimization parameters of the video data can be determined according to the display control configuration configured for the terminal and the image quality parameters of the video data, and then the image quality of the video data is optimized according to the image quality optimization parameters, so that the image quality of the video played by the terminal is close to the ideal image quality of the video data, and the problem that the image quality seen by a user when the terminal plays the video in the prior art is different from the ideal image quality of the video is solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of multimedia, in particular to a multimedia processing method, a video processing device and a readable storage medium.
Background
With the increase in network speed and the reduction in cost of tariffs, many users choose to view or listen to multimedia files, such as video, images, audio, etc., through mobile terminals. Taking a video as an example, in the process of researching the image quality of different mobile terminals aiming at the playing of the same video, the inventor finds that the image quality seen by a user when the same video is played on different mobile terminals is different due to the difference between the hardware and software performance of the mobile terminals. For example, the image quality on some mobile terminals is reddish, while the image quality on other mobile terminals is darker. Moreover, when a video is played on some mobile terminals, the image quality seen by a user is very different from the real (ideal) image quality of the video, so that the user has a negative impression on the mobile terminal or video playing software.
Therefore, it is desirable to provide a technical solution to solve the problem in the prior art that the display effect and the real effect of the multimedia file on the mobile terminal are different.
Disclosure of Invention
In view of this, the multimedia processing technical solution provided in the embodiments of the present invention can optimize the image quality and/or sound quality of the multimedia file when the multimedia file is presented on the terminal.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a video processing method is used for optimizing the image quality of decoded video data on a terminal, and specifically comprises the following steps:
determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and optimizing the image quality of the video data according to the image quality optimization parameters, so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
A video processing plug-in, which is preinstalled in a terminal and is used for optimizing the image quality of decoded video data on the terminal, specifically comprises:
the image quality optimization parameter determining unit is used for determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and the video image quality optimization unit is used for optimizing the image quality of the video data according to the image quality optimization parameters so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
A video processing device, which is preinstalled in a terminal and is used for optimizing the image quality of decoded video data on the terminal, specifically comprises:
the image quality optimization parameter determining unit is used for determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and the video image quality optimization unit is used for optimizing the image quality of the video data according to the image quality optimization parameters so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
A readable storage medium storing a program to execute the video processing method.
According to the video processing technology provided by the embodiment of the invention, each terminal is configured with a display control configuration in advance, and the display control configuration records parameters for reflecting the display effect of the terminal and parameters of computing capability, so that the image quality optimization parameters of video data can be determined for the video decoded on the terminal according to the display control configuration configured for the terminal and the image quality parameters of the video data, and the image quality of the video data is optimized according to the image quality optimization parameters, so that the image quality of the video played by the terminal is close to the ideal image quality of the video data, and the problem that the image quality of the video played by the terminal in the prior art is different from the ideal image quality of the video is solved.
A multimedia processing method is used for optimizing multimedia files on a terminal, and specifically comprises the following steps:
determining optimization parameters of the multimedia file based on the control configuration of the terminal and the multimedia file;
and optimizing the multimedia file according to the optimization parameters, so that the effect of the optimized multimedia file presented by the terminal is close to the ideal effect of the multimedia file.
The multimedia processing technology provided by the embodiment of the invention is characterized in that each terminal is configured with a control configuration in advance, and the control configuration records parameters for reflecting the effect of the terminal and parameters of computing capacity, so that the multimedia files on the terminal can determine the optimized parameters of the multimedia files according to the control configuration configured for the terminal and the effect parameters of the multimedia files, and further optimize the image quality of the multimedia files according to the optimized parameters, so that the effect of the terminal when the multimedia files are presented is close to the ideal effect of the multimedia files, and the problem that the effect of the multi-terminal presenting the multimedia files and the ideal effect of the multimedia files in the prior art are different is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a multimedia processing method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a video processing method according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a video processing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a multimedia processing method for optimizing a multimedia file on a terminal, which specifically includes:
step 10: determining optimization parameters of the multimedia file based on the control configuration of the terminal and the multimedia file;
step 11: and optimizing the multimedia file according to the optimization parameters, so that the effect of the optimized multimedia file presented by the terminal is close to the ideal effect of the multimedia file. The ideal effects refer to the effects that the multimedia file has when the producer of the multimedia file (the producer may be the creator of the multimedia file or the processor that produces the created multimedia file) has produced the multimedia file, and these effects generally make the user who watches or listens to the multimedia file feel pleasant/comfortable/pleasant.
In practical applications, the multimedia file may be any one of video, image and audio, and the scheme shown in fig. 1 is described below with reference to different types of multimedia files:
firstly, when the multimedia file is a video or an image, the control configuration is a display control configuration, and the optimization parameter is used for optimizing the image quality of the video or the image;
secondly, when the multimedia file is audio, the control configuration is an audio control configuration, and the optimization parameters are used for optimizing the tone quality of the audio;
thirdly, when the multimedia file is a video, the control configuration is an audio control configuration, and the optimization parameters are used for optimizing the tone quality of the video;
fourthly, when the multimedia file is audio or video, the control configuration is audio and display control configuration, and the optimization parameters are used for simultaneously optimizing the tone quality and the image quality of the video or the audio.
The multimedia processing technology provided by the embodiment of the invention is characterized in that control configuration is configured for each terminal in advance, and the control configuration records parameters for reflecting the display effect or the audio effect of the terminal and parameters of computing capability, so that the optimization parameters of the multimedia file can be determined according to the control configuration configured for the terminal and the presentation parameters (image quality parameters and/or sound quality parameters) of the multimedia file, and the multimedia file is optimized according to the image quality optimization parameters, so that the image quality or the sound quality of the terminal no matter playing videos or displaying images or playing audios is close to the ideal image quality and/or the ideal sound quality of the corresponding multimedia file, and the problem that the effect of the terminal presenting the multimedia file and the real effect are different in the prior art is solved.
The following takes a video as an example to describe a video processing method and related embodiments provided by the embodiments of the present invention in detail.
As shown in fig. 2, an embodiment of the present invention provides a video processing method for optimizing the image quality of decoded video data on a terminal, including:
step 20: determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
for example, the following steps are carried out:
for example, if a terminal has a reddish color of image quality during video playing due to a problem of hardware performance, a display control configuration configured for the terminal needs to include a parameter capable of reflecting the color display deviation of the terminal, where the parameter may specifically be: a color space mapping matrix of the terminal. Meanwhile, the method provided by the invention needs to be executed on the terminal, and whether the method can be executed and whether the corresponding effect can be obtained after the method is executed depends on the computing capability of the terminal, so that the display control configuration also needs to include the computing capability of the terminal. That is, the display control configuration of the embodiment of the present invention records a parameter for reflecting the display effect of the terminal itself and a parameter of the calculation capability.
In addition, since the video data itself also has ideal image quality parameters, which are carried in the video stream transmitted to the terminal, and the ideal image quality parameters of the video data itself can be obtained after the video data is decoded by the terminal, obtaining data for optimizing the image quality of the video data needs to depend on the display control configuration configured for the terminal and also needs to combine the ideal image quality parameters of the video data.
In an optional embodiment, the parameters for reflecting the display effect of the terminal and the parameters for calculating the power at least comprise: the terminal's color space mapping matrix, sharpness, contrast, saturation, denoising strength, and computational power.
In one embodiment, step 20: determining the image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data, and adopting the following implementation mode:
and calling the computing capability of the terminal, and obtaining the image quality optimization parameters of the video data based on the color space mapping matrix, the post-processing sharpness, the contrast, the saturation, the denoising intensity and the ideal image quality parameters of the video data of the terminal.
Step 21: and optimizing the image quality of the video data according to the image quality optimization parameters, so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
It should be noted that the purpose of the present invention to optimize video data is to make the difference between the picture quality of the optimized video data presented on the terminal and the ideal picture quality of the video data not large or close or infinitely close or the same, and the specific optimization degree depends on the technical ability of those skilled in the art when implementing the solution provided by the present invention on the ground, and therefore, the approach is a clear and realizable feature for those skilled in the art.
The ideal image quality refers to an effect that a video creator (which may be a creator of the video or a processor who performs production processing on the created video) has when the video is created, and the effect is generally pleasing and comfortable to a user who views the video.
In an embodiment of the present invention, the image quality optimization parameters of the video data at least include: a color space mapping matrix of the terminal, a post-processing sharpness, a post-processing contrast, a post-processing saturation and a post-processing denoising strength of the video, and at this time, step 21: optimizing the image quality of the video data according to the image quality optimization parameters, specifically comprising:
and optimizing the image quality of the video data according to the color space mapping matrix of the terminal, the post-processing sharpness, the post-processing contrast, the post-processing saturation and the post-processing denoising strength of the video.
The above is the video processing method provided by the present invention, and it should be noted that the technical features in the schemes provided by the present invention can be combined arbitrarily, and the combined schemes can achieve the effect of optimizing the video image quality, all of which belong to the scope disclosed by the present invention.
Continuing the previous example, if the color of the video played by the terminal is red, the color of the video data needs to be optimized according to the image quality optimization parameter. Assuming that the original color value of a certain pixel point of a certain frame of video data is a, the image quality is reddish when the video data is played through the terminal, and the image quality effect of the terminal when the display color value is a 'is closer to the ideal image quality of the video data a, the scheme of the present invention needs to process the original color value of the pixel point in the video data from a to a'. That is, the present invention adapts the device capabilities of the terminal by optimizing the video data, rather than changing the device capabilities of the terminal itself.
Since the difference between the device capabilities of different terminals is large, a person skilled in the art can expand the image quality optimization parameter according to the terminal conditions, and the method is not limited to the above optional embodiment.
In the above description, in practical applications, the terminal may be any device capable of playing video, such as a smart phone, a tablet computer, a smart television, and a computer.
Furthermore, the video is formed by one frame and one frame of pictures, and the scheme provided by the embodiment of the invention can obtain a set of image quality optimization parameters aiming at one video data; in another preferred embodiment, the image quality optimization parameters can be obtained for each frame or the frames to be optimized according to the ideal image quality parameters of each frame of the video data or the ideal image quality parameters of some frames to be optimized in the video data, and in the subsequent optimization process, the image quality of the frames of the corresponding frames in the video data is optimized according to the image quality optimization parameters of the frames in the video data, so that a more refined optimization effect can be obtained, and the user's perception on the terminal or video playing software is further improved.
Further, in the video processing method provided by the present invention, the display control configuration configured for the terminal may have the following implementation modes:
first, display control configuration is stored in a server, and a terminal sends a request carrying device parameters of the terminal (such as terminal model and the like, which can uniquely identify the device parameters of the terminal) to the server, so that the server returns the display control configuration configured for the terminal in advance.
This way, it should be noted that the present invention stores a piece of display control configuration in the server for terminals of the same model. For example, the terminal is a smart phone, and the display control configuration is stored for the smart phones of the same brand and the same model, rather than for each smart phone.
Secondly, the display control configuration of the terminal is pre-stored in the terminal, and the display control configuration can be pre-installed in the terminal before the terminal leaves a factory through cooperation with a manufacturer or a brand of the terminal.
No matter whether the display control configuration is obtained by adopting any one of the two manners, the method provided by the present invention may further include a process of updating the display control configuration local to the terminal, where the process includes the following two manners:
the first method comprises the following steps:
the terminal sends a request carrying the equipment parameters of the terminal to a server;
after receiving the request, the server inquires the display control configuration corresponding to the equipment parameter and sends the inquired display control configuration to the terminal;
and the terminal compares the display control configuration returned by the server with the local display control configuration of the terminal, and if the display control configuration returned by the server is a new version, the local display control configuration of the terminal is replaced by the display control configuration returned by the server.
And the second method comprises the following steps:
the terminal sends a request to the server, wherein the request carries the equipment parameters of the terminal and the local display control configuration of the terminal, so that the server returns a new version of display control configuration;
after receiving the request, the server inquires the display control configuration corresponding to the equipment parameter, compares the inquired display control configuration with the display control configuration sent by the terminal, and returns the new display control configuration to the terminal if the server inquires a new version;
when the server returns the display control configuration of the new version, replacing the local display control configuration of the terminal with the display control configuration of the new version;
and when the server does not return a new version of display control configuration, waiting for next update.
The above is an embodiment of a method provided by the embodiment of the present invention, and an embodiment of a product provided by the embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 3, a video processing apparatus provided in an embodiment of the present invention is preinstalled in a terminal, and is configured to optimize the image quality of video data that has been decoded on the terminal, and specifically includes:
an image quality optimization parameter determination unit 30, configured to determine an image quality optimization parameter of the video data based on the display control configuration of the terminal and the video data;
and the video quality optimization unit 31 is configured to optimize the quality of the video data according to the quality optimization parameter, so that the quality of the video data played by the terminal after optimization approaches the ideal quality of the video data.
In practical applications, the video processing apparatus may specifically be a video processing plug-in, such as a video processing SDK, and accordingly, an embodiment of the present invention provides a video processing plug-in, which is preinstalled in a mobile terminal and is used for optimizing image quality of video data that has been decoded on the terminal, and specifically includes:
an image quality optimization parameter determination unit 30, configured to determine an image quality optimization parameter of the video data based on the display control configuration of the terminal and the video data;
and the video quality optimization unit 31 is configured to optimize the quality of the video data according to the quality optimization parameter, so that the quality of the video data played by the terminal after optimization approaches the ideal quality of the video data.
For the specific working process of each unit during working, reference is made to the description of the foregoing method embodiment, and details are not repeated here.
The invention is a readable storage medium characterized by storing a program of a video processing method provided in any one of the embodiments of the invention.
The functions of the programs can be referred to the description of the corresponding parts in the foregoing.
Although the embodiments of the present invention have been disclosed, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A video processing method, configured to optimize the quality of decoded video data on a terminal, includes:
determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and optimizing the image quality of the video data according to the image quality optimization parameters, so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
2. The method of claim 1, wherein the method further comprises:
and sending a request carrying the equipment parameters of the terminal to a server so that the server returns display control configuration configured for the terminal in advance.
3. The method of claim 1, wherein the display control configuration of the terminal is pre-stored in the terminal.
4. The method of claim 2 or 3, wherein the method further comprises:
and comparing the display control configuration returned by the server with the local display control configuration of the terminal, and replacing the local display control configuration of the terminal with the display control configuration returned by the server if the display control configuration returned by the server is a new version.
5. The method of claim 2 or 3, wherein the method further comprises:
sending a request to a server, wherein the request carries the equipment parameters of the terminal and the local display control configuration of the terminal;
and when the server returns the display control configuration of the new version, replacing the local display control configuration of the terminal with the display control configuration of the new version.
6. A method according to claims 1-3, wherein the display control arrangement comprises at least: the method comprises the steps of mapping a color space of a terminal to a matrix, acutance, contrast, saturation, denoising intensity and computing capacity;
the determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data specifically includes:
and calling the computing capability of the terminal, and obtaining the image quality optimization parameters of the video data based on the color space mapping matrix, the sharpness, the contrast, the saturation, the denoising intensity of the terminal and the ideal image quality parameters of the video data.
7. The method of claim 6, wherein the video quality optimization parameters of the video data comprise at least: a color space mapping matrix of the terminal, post-processing sharpness, post-processing contrast, post-processing saturation and post-processing denoising strength of the video;
optimizing the image quality of the video data according to the image quality optimization parameters, specifically comprising:
and optimizing the image quality of the video data according to the color space mapping matrix of the terminal, the post-processing sharpness, the post-processing contrast, the post-processing saturation and the post-processing denoising strength of the video.
8. A video processing plug-in is characterized in that the plug-in is preinstalled in a terminal and used for optimizing the image quality of decoded video data on the terminal, and specifically comprises the following steps:
the image quality optimization parameter determining unit is used for determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and the video image quality optimization unit is used for optimizing the image quality of the video data according to the image quality optimization parameters so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
9. A video processing apparatus, pre-installed in a terminal, for optimizing image quality of decoded video data on the terminal, the apparatus comprising:
the image quality optimization parameter determining unit is used for determining image quality optimization parameters of the video data based on the display control configuration of the terminal and the video data;
and the video image quality optimization unit is used for optimizing the image quality of the video data according to the image quality optimization parameters so that the image quality of the optimized video data played by the terminal is close to the ideal image quality of the video data.
10. A readable storage medium characterized by storing a program for executing the video processing method according to any one of claims 1 to 7.
11. A multimedia processing method is used for optimizing multimedia files on a terminal, and specifically comprises the following steps:
determining optimization parameters of the multimedia file based on the control configuration of the terminal and the multimedia file;
and optimizing the multimedia file according to the optimization parameters, so that the effect of the optimized multimedia file presented by the terminal is close to the ideal effect of the multimedia file.
12. The method of claim 11,
when the multimedia file is a video or an image, the control configuration is a display control configuration, and the optimization parameters are used for optimizing the image quality of the video or the image;
when the multimedia file is audio or video, the control configuration is audio control configuration, and the optimization parameters are used for optimizing the tone quality of the audio or video;
when the multimedia file is audio or video, the control configuration is audio and display control configuration, and the optimization parameters are used for simultaneously optimizing the tone quality and the image quality of the video or the audio.
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