CN113691740A - Mobile terminal webpage video background processing method, system and storage medium - Google Patents
Mobile terminal webpage video background processing method, system and storage medium Download PDFInfo
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- CN113691740A CN113691740A CN202110790645.XA CN202110790645A CN113691740A CN 113691740 A CN113691740 A CN 113691740A CN 202110790645 A CN202110790645 A CN 202110790645A CN 113691740 A CN113691740 A CN 113691740A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/957—Browsing optimisation, e.g. caching or content distillation
- G06F16/9574—Browsing optimisation, e.g. caching or content distillation of access to content, e.g. by caching
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/957—Browsing optimisation, e.g. caching or content distillation
- G06F16/9577—Optimising the visualization of content, e.g. distillation of HTML documents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
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Abstract
The invention relates to a method, a system and a storage medium for processing a mobile terminal webpage video background, wherein the method comprises the following steps: s1, acquiring a video file and a video format type of the video file, wherein the video format type comprises a first video format collection and a second video format collection; s2, acquiring a browser user agent attribute, if the browser supports standard video elements and the video format type belongs to a first video format aggregate, turning to the step S3, and turning to the step S4 otherwise; s3, calling a standard video element to play the video file as a video background; and S4, decoding the video file, drawing the video file into a plurality of pictures frame by frame, and playing the pictures as video backgrounds according to time sequence. According to the method and the device, different video processing strategies are adopted for different browsers by acquiring the user agent attribute of the browser. Therefore, the mobile terminal browser is compatible, and the webpage video background is realized.
Description
Technical Field
The invention relates to the field of webpage video background processing, in particular to a method, a system and a storage medium for processing a webpage video background of a mobile terminal.
Background
The webpage video background is a background of a browser taking a dynamic video as characters, titles and the like, and shows a dynamic effect.
At present, a mobile browser is not uniform in implementation of a Web standard, and there are many compatibility problems in implementing a video background of a Web page using a native video element, such as: the video cannot be automatically played, the video element as a popup element cannot be covered, a play button cannot be hidden, the video can be played in a full screen by default, and the like, so that the webpage video background is invalid in a mobile browser. As shown in fig. 1, the picture on the left side in fig. 1 is a mobile terminal screenshot normally displayed on the background of the web page video, and the pictures in the middle and on the right side are mobile terminal screenshots in which compatibility problems occur, so that layers are dislocated or automatic playing cannot be performed.
The invention aims to design a method, a system and a storage medium for processing a mobile terminal webpage video background, which aim to solve the problems in the prior art.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a method, a system, and a storage medium for processing a mobile-end web video background, which can effectively solve the problems in the prior art.
The technical scheme of the invention is as follows:
a mobile terminal webpage video background processing method comprises the following steps:
s1, acquiring a video file and a video format type of the video file, wherein the video format type comprises a first video format collection and a second video format collection;
s2, acquiring a browser user agent attribute, if the browser supports standard video elements and the video format type belongs to a first video format aggregate, turning to the step S3, and turning to the step S4 otherwise;
s3, calling a standard video element to play the video file as a video background;
and S4, decoding the video file, drawing the video file into a plurality of pictures frame by frame, and playing the pictures as video backgrounds according to time sequence.
Further, in step S4, the video file is decoded and rendered into multiple pictures frame by frame through a Canvas interface.
Further, in step S4, the decoding and frame-by-frame rendering the video file into a plurality of pictures specifically includes:
and detecting the browser capability of the browser, selecting a browser interface supported by the browser and suitable for decoding the video file, and drawing the video file into a plurality of pictures frame by frame.
Further, browser capability detection is carried out on the browser, and the supporting condition of the browser on a Web Workers interface and a WebGL interface is obtained.
Further, the browser interface supported by the selected browser and suitable for the selected browser is specifically:
if the browser does not support the Web Workers interface or the WebGL interface, selecting a Canvas 2d interface of the browser;
if the browser does not support the Web Workers interface and supports the WebGL interface, selecting a Canvas WebGI interface of the browser;
if the browser supports the Web Workers interface and does not support the WebGL interface, selecting a Canvas 2d interface of the browser;
and if the browser supports the Web Workers interface and the WebGL interface, selecting a Canvas WebGI interface of the browser.
Further, the air conditioner is provided with a fan,
if the browser does not support the Web Workers interface, the browser decodes the video file through a main program;
and if the browser supports the Web Workers interface, the browser decodes the video file through the Web Workers interface.
Further, the Canvas WebGI interface is rendered by a GPU.
Further, the first video format set at least comprises MP4 format, and the second video format set at least comprises TS format.
Further provided is a mobile terminal web page video background processing system, comprising:
the device comprises an acquisition module, a storage module and a processing module, wherein the acquisition module is used for acquiring a video file and a video format type of the video file, and the video format type comprises a first video format collection and a second video format collection;
the browser attribute judging module is used for acquiring a browser user agent attribute, judging whether the browser supports a standard video element and the video format type belongs to a first video format collection, if so, turning to the step S3, and if not, turning to the step S4;
the standard video element playing module is used for calling the standard video element to play the video file as a video background if the browser supports the standard video element;
and the drawing playing module is used for decoding the video file and drawing the video file into a plurality of pictures frame by frame if the browser does not support the standard video element, and playing the pictures as the video background according to a time sequence.
There is further provided a computer readable storage medium storing a computer program which, when executed by a processor, implements the web video background processing method described above.
Accordingly, the present invention provides the following effects and/or advantages:
according to the method and the device, different video processing strategies are adopted for different browsers by acquiring the user agent attribute of the browser. Therefore, the mobile terminal browser is compatible, and the webpage video background is realized.
The invention decodes the video file and draws the video file into a plurality of pictures frame by frame for incompatible mobile end browsers, plays the pictures according to time sequence to realize webpage video background, and can realize the webpage video background for different browsers, different video file formats and different hardware devices.
The invention has better visual effect, and the video is not limited by the invention, and the picture can be represented by using complete RGB24 bit colors (16777216 colors), so the visual effect of the video background is better. The invention can be used for playing control, the GIF picture can not be used for playing control, and the invention can realize the playing control of the video background through the operations of playing pause and the like of the video.
According to the method, the texture of the video picture can be directly generated by using WebGL for the browser supporting the WebGL capability according to the capability conditions of different browsers, the rendering capability of the GPU can be directly used for improving the drawing and rendering efficiency of the picture, and therefore the resource production cost is reduced, and the method is richer in resource production cost and lower in production cost compared with GIF video resources. The GIF needs to do a lot during the production process considering the influence of the volume such as: and the optimization operations such as compression, frame extraction, clipping and the like are performed, so that the generation threshold is greatly reduced.
The invention can complete the work of video decoding by the Web works threads for the browser supporting the Web works, reduces the resource occupation of the browser main threads to improve the efficiency of program execution, and can complete the work of video decoding by the main threads for the browser not supporting the Web works to ensure the generation of background video.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Drawings
Fig. 1 is a background screenshot of a web page video displayed by different mobile browsers.
Fig. 2 is a schematic main flow diagram of the present invention.
Fig. 3 is a general flow diagram of the present invention.
Fig. 4 is a schematic diagram of a frame picture set.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 2-3, a method for processing a background of a mobile-end web video includes the following steps:
s1, acquiring a video file and a video format type of the video file, wherein the video format type comprises a first video format collection and a second video format collection; in this embodiment, after the Video file is acquired, the information of the Video file is analyzed, where the information at least includes Video format types, such as MP4, TS, AVI, and the like, and there is no requirement for the format of the Video file in this embodiment, and the format of the Video file is acquired in order to facilitate subsequent adoption of a corresponding policy, for example, a standard Video element may directly decode a Video file in an MP4 format, but may not decode a Video file in a TS format, for example, so that the format of the Video file is further confirmed in this step, which is beneficial to different processing of different Video files in subsequent processing steps.
S2, acquiring the browser user agent attribute, if the browser supports the standard video element and the video format type belongs to the first video format aggregate, turning to the step S3, otherwise, turning to the step S4. The browser user agent attribute refers to information of a browser, and comprises a hardware platform, system software, application software and user personal preference, and the browser name, the browser version number, the rendering engine and the operating system can be analyzed through the browser user agent attribute. The application method can be directly opened for viewing, and the browser user agent attributes of other browsers can be copied for analysis. For example, obtaining browser user attribute for iphone6, may result in, for example: a row of data of Mozilla/5.0 (iPhone; CPU iPhone OS 9_1like Mac OS X) AppleWebKit/601.1.46(KHTML, like Gecko) Version/9.0Mobile/13B143 Safari/601.1' comprises that a hardware platform is iPhone, a Mobile terminal adopting AppleWebKit and Version/9.0 is adopted, and a browser is Safari/601.1. Different browsers have different capabilities for format support of video files, the different browsers can be distinguished through browser user attributes, whether the browsers support standard video elements or not is judged, and different background videos are respectively taken by the browsers which support and the browsers which do not support the browsers.
S3, calling a standard video element to play the video file as a video background; the browser supporting the standard Video element behavior realizes the Video background by using the Video element to play MP4 format Video. The standard video element is the HTML5 which is specially used for playing videos or movies on the network, and when the video element is used for playing, other plug-ins are not needed, so long as the browser supports the HTML 5. The video in mp4 format can be played by calling standard video elements above IE9.0, Safari3.1, iso5.0 and android4.0 without other plug-ins or codes.
And S4, decoding the video file, drawing the video file into a plurality of pictures frame by frame, and playing the pictures as video backgrounds according to time sequence. In this embodiment, the video format is a TS format, the video is decoded and drawn into a plurality of pictures frame by frame, as shown in fig. 4, a frame picture set is obtained, and the frame picture set is named according to the frame sequence. In the embodiment, the resolution of the picture does not need to be adjusted, and the resolution is the same as the original resolution of the video file. Compared with the traditional video conversion to GIF, the embodiment is not limited in that the GIF format can only use 8-bit colors (256 colors) to represent pictures, and achieves better visual effect.
Further, in step S4, the video file is decoded and rendered into multiple pictures frame by frame through a Canvas interface. The Canvas interface allows users to draw various graphics in the Web. The Canvas interface is a pixel-based drawing, equivalent to the HTML5 node of the palette, that the user can draw with JS operations, and can save the resulting image in. png or. jpg format.
Further, in step S4, the decoding and frame-by-frame rendering the video file into a plurality of pictures specifically includes:
and detecting the browser capability of the browser, selecting a browser interface supported by the browser and suitable for decoding the video file, and drawing the video file into a plurality of pictures frame by frame.
Further, browser capability detection is carried out on the browser, and the supporting condition of the browser on a Web Workers interface and a WebGL interface is obtained.
The browser capability detection can also be called as property detection, and the target of the browser capability detection is to identify the capability of the browser, for example, getElementsByClassName is not compatible with the IE8 browser and below, then in order to judge whether the current browser supports getElementsByClassName, the capability detection is performed on the browser, a getElementsByClassName element is created, and if the browser is compatible with the element, true is returned. Through browser capability detection, the support condition of the browser to each element and interface can be detected. The method for detecting the browser capability belongs to the prior art, does not belong to the core improvement point of the application, and is not developed in detail here. In the embodiment, the support condition of the browser on the Web Workers interface and the WebGL interface is obtained through browser capability detection, the Web Worker interface provides a simple method for running scripts in background threads of Web contents, and the threads can execute tasks without interfering with user interfaces. The resource occupation of the main process of the browser can be reduced through a Web Worker interface. WebGL can invoke the rendering capability of the GPU to improve the efficiency of picture drawing rendering. Therefore, different strategies are made for the supporting conditions of the browser to the Web Workers interface and the WebGL interface, and the specific strategies are as follows.
Further, the browser interface supported by the selected browser and suitable for the selected browser is specifically:
if the browser does not support the Web Workers interface or the WebGL interface, selecting a Canvas 2d interface of the browser;
if the browser does not support the Web Workers interface and supports the WebGL interface, selecting a Canvas WebGI interface of the browser;
if the browser supports the Web Workers interface and does not support the WebGL interface, selecting a Canvas 2d interface of the browser;
and if the browser supports the Web Workers interface and the WebGL interface, selecting a Canvas WebGI interface of the browser.
In the running process of the browser, the rendering speed of the Canvas 2d interface is slower than that of the Canvas WebGI interface, so that the browser supporting the Canvas WebGI interface is rendered by preferentially adopting the Canvas WebGI interface.
Further, the air conditioner is provided with a fan,
if the browser does not support the Web Workers interface, the browser decodes the video file through a main program;
and if the browser supports the Web Workers interface, the browser decodes the video file through the Web Workers interface.
The browser needs to create and select a corresponding process to run a corresponding task. The task can be performed with the appropriate thread selected without disturbing the user interface. And for the condition that the browser supports the Web Workers interface, the browser can create and select a corresponding process to decode the video file through the Web Workers interface, and the video decoding efficiency is optimized. And for the condition that the Web Workers interface is not supported, the browser needs to select a main program to decode the video file, so that the decoding is ensured.
Further, the Canvas WebGI interface is rendered by a GPU.
Further, the first video format set at least comprises MP4 format, and the second video format set at least comprises TS format. In this embodiment, the first video format set belongs to video formats supported by standard video elements, such as MP4, and may also support formats such as WebM in some browsers, and the second video format is a video format not supported by standard video elements, such as TS, AVI, and the like.
Example two
A mobile terminal web page video background processing system comprises:
the device comprises an acquisition module, a storage module and a processing module, wherein the acquisition module is used for acquiring a video file and a video format type of the video file, and the video format type comprises a first video format collection and a second video format collection;
the browser attribute judging module is used for acquiring a browser user agent attribute, judging whether the browser supports a standard video element and the video format type belongs to a first video format collection, if so, turning to the step S3, and if not, turning to the step S4;
the standard video element playing module is used for calling the standard video element to play the video file as a video background if the browser supports the standard video element;
and the drawing playing module is used for decoding the video file and drawing the video file into a plurality of pictures frame by frame if the browser does not support the standard video element, and playing the pictures as the video background according to a time sequence.
EXAMPLE III
A computer-readable storage medium, which stores a computer program, and when executed by a processor, implements the method for processing a webpage video background as described in the first embodiment.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. A mobile terminal webpage video background processing method is characterized in that: comprises the following steps:
s1, acquiring a video file and a video format type of the video file, wherein the video format type comprises a first video format collection and a second video format collection;
s2, acquiring a browser user agent attribute, judging whether the browser supports a standard video element and the video format type belongs to a first video format aggregate, if so, turning to the step S3, otherwise, turning to the step S4;
s3, calling a standard video element to play the video file as a video background;
and S4, decoding the video file, drawing the video file into a plurality of pictures frame by frame, and playing the pictures as video backgrounds according to time sequence.
2. The method according to claim 1, wherein the background processing method comprises: in step S4, the video file is decoded and drawn into a plurality of pictures frame by frame through a Canvas interface.
3. The method for processing the background of the mobile terminal webpage video according to any one of claims 1-2, wherein: in step S4, the decoding and frame-by-frame rendering of the video file into a plurality of pictures specifically includes:
and detecting the browser capability of the browser, selecting a browser interface supported by the browser and suitable for decoding the video file, and drawing the video file into a plurality of pictures frame by frame.
4. The method according to claim 3, wherein the background processing method comprises: and detecting the browser capability of the browser, and acquiring the support condition of the browser to the Web Workers interface and the WebGL interface.
5. The method according to claim 4, wherein the background processing method comprises: the browser interface which is supported by the selected browser and is suitable is specifically as follows:
if the browser does not support the Web Workers interface or the WebGL interface, selecting a Canvas 2d interface of the browser;
if the browser does not support the Web Workers interface and supports the WebGL interface, selecting a Canvas WebGI interface of the browser;
if the browser supports the Web Workers interface and does not support the WebGL interface, selecting a Canvas 2d interface of the browser;
and if the browser supports the Web Workers interface and the WebGL interface, selecting a Canvas WebGI interface of the browser.
6. The method according to claim 5, wherein the background processing method comprises: further, the air conditioner is provided with a fan,
if the browser does not support the Web Workers interface, the browser decodes the video file through a main program;
and if the browser supports the Web Workers interface, the browser decodes the video file through the Web Workers interface.
7. The method according to claim 5, wherein the background processing method comprises: the Canvas WebGI interface is rendered by a GPU.
8. The method according to claim 5, wherein the background processing method comprises: the first video format set at least comprises MP4 format, and the second video format set at least comprises TS format.
9. A mobile terminal webpage video background processing system is characterized in that: comprises the following steps:
the device comprises an acquisition module, a storage module and a processing module, wherein the acquisition module is used for acquiring a video file and a video format type of the video file, and the video format type comprises a first video format collection and a second video format collection;
the browser attribute judging module is used for acquiring a browser user agent attribute, judging whether the browser supports a standard video element and the video format type belongs to a first video format collection, if so, turning to the step S3, and if not, turning to the step S4;
the standard video element playing module is used for calling the standard video element to play the video file as a video background if the browser supports the standard video element;
and the drawing playing module is used for decoding the video file and drawing the video file into a plurality of pictures frame by frame if the browser does not support the standard video element, and playing the pictures as the video background according to a time sequence.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the web video background processing method according to claim 1.
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| CN202110790645.XA CN113691740A (en) | 2021-07-13 | 2021-07-13 | Mobile terminal webpage video background processing method, system and storage medium |
| PCT/CN2022/076306 WO2023284295A1 (en) | 2021-07-13 | 2022-02-15 | Method and system for processing webpage video background of mobile end, and storage medium |
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| CN202110790645.XA CN113691740A (en) | 2021-07-13 | 2021-07-13 | Mobile terminal webpage video background processing method, system and storage medium |
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| WO2023284295A1 (en) * | 2021-07-13 | 2023-01-19 | 稿定（厦门）科技有限公司 | Method and system for processing webpage video background of mobile end, and storage medium |
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