CN110119452A - A kind of page multi-medium data deriving method and device - Google Patents
A kind of page multi-medium data deriving method and device Download PDFInfo
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- CN110119452A CN110119452A CN201810095377.8A CN201810095377A CN110119452A CN 110119452 A CN110119452 A CN 110119452A CN 201810095377 A CN201810095377 A CN 201810095377A CN 110119452 A CN110119452 A CN 110119452A
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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
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/258—Data format conversion from or to a database
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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
- G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
- G06F16/44—Browsing; Visualisation therefor
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Abstract
The invention discloses a kind of page multi-medium data deriving method and device, the method includes: the multimedia render object obtained in the page；Obtain the multimedia coding data of each multimedia render object；Using multimedia coding data described in multiple worker thread parallel processings, multimedia coding data are converted into multimedia file；The multimedia file obtained in the multiple worker thread is sent to main thread, multimedia file integration is carried out by the main thread.The present invention handles the biggish data processing work of calculation amount by the parallel progress of work, the execution of multiple JavaScript scripts is realized in the same time, the processing pressure of browser main thread is shared in terms of operating system, can quickly export multi-medium data in browser end while guaranteeing the normal operation of browser end.
Description
Technical field
The present invention relates to Internet technical field more particularly to a kind of page multi-medium data deriving methods and device.
Background technique
As the demand that enterprise analyzes data increases, the demand of data visualization is consequently increased.Data on platform
Visualization is not able to satisfy most of data visualization demand, also needs to export all data in some scenes and standby
Part.For example each chart on the page is exported into printing, each chart data is exported as into Excel format and is carried out in other data
Analysis.Traditional deriving method includes following two:
One, it gives the export process of chart to server-side and executes, after the completion of being exported by server, derived content is packaged
It is downloaded afterwards for user.
Two, another mode is exactly directly to carry out export by browser end to operate.
Although can realize that data export in first way by way of multithreading, need to rely on service
End, scalability is poor, and network request cost caused by server-side is bigger.
It is slower using rate derived from JavaScript single thread mode when browser end exports in the second way, very
To there is the case where browser crash.
The second way is exemplified below: needing to show the weather condition in multiple and different areas when page presentation, needs
Use nearly 300 charts while being rendered into browser end, at this time using chart rendering be Canvas or SVG by the way of
It is rendered, needs to export all these charts when being visualized and printed to local, this when needs to institute
There is chart to be converted, be converted into the picture of PNG format, then carries out the compressed package that compression is packaged into a zip format, finally
It is supplied to user.The processing of whole flow process is all completed by main thread, is needed largely calculating and read-write operation, is be easy to cause clear
Look at device Caton the case where, or even the case where cause browser crash.
Browser JavaScript single thread bring bottleneck problem how is solved, how quickly to be exported in browser end more
Media data is the technical issues that need to address.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of page multi-medium data deriving method and devices.
Page data deriving method provided by the invention, comprising:
Obtain the multimedia render object in the page；
Obtain the multimedia coding data of each multimedia render object；
Using multimedia coding data described in multiple worker thread parallel processings, multimedia coding data are converted into more matchmakers
Body file；
The multimedia file obtained in the multiple worker thread is sent to main thread, is carried out by the main thread more
Media file integration.
Above-mentioned page data deriving method also has the following characteristics that
After the multimedia coding data for obtaining each multimedia render object, the method also includes: to the multimedia
The multimedia coding data of render object are grouped；
Multimedia coding data described in the multiple worker thread parallel processings of the use include: to use multiple worker threads simultaneously
Row handles the multimedia coding data in the grouping.
Above-mentioned page data deriving method also has the following characteristics that
The multimedia coding data to the multimedia render object, which are grouped, includes:
The multimedia coding data of the multimedia render object are divided into multiple groupings by the quantity for determining worker thread,
The quantity of grouping is identical as the quantity of the worker thread.
Above-mentioned page data deriving method also has the following characteristics that
It is described the multimedia file obtained in the multiple worker thread is sent to main thread to include:
The multimedia file obtained in the multiple worker thread is sent to main thread by way of sending message.
Above-mentioned page data deriving method also has the following characteristics that
The multimedia coding data for obtaining each multimedia render object include:
Multimedia data type in transfer function is set；The transfer function is used for multimedia render object to multimedia
Coded data uniform resource identifier；
The transfer function is called, the corresponding multimedia coding data unified resource mark of the multimedia render object is obtained
Know symbol.
Page data guiding device provided by the invention, comprising:
Module is obtained to picture, for obtaining the multimedia render object in the page；
Data acquisition module, for obtaining the multimedia coding data of each multimedia render object；
Worker thread processing module will be more for using multimedia coding data described in multiple worker thread parallel processings
Media coding data are converted to multimedia file, and multimedia file is sent to main thread processing module；
Main thread processing module, for carrying out multimedia file integration.
Above-mentioned page data guiding device also has the following characteristics that
Described device further includes grouping module, is divided for the multimedia coding data to the multimedia render object
Group；
The worker thread processing module, for using more matchmakers described in multiple worker thread parallel processings using following methods
Body coded data: the multimedia coding data in grouping described in multiple worker thread parallel processings are used.
Above-mentioned page data guiding device also has the following characteristics that
The grouping module, be also used for following methods to the multimedia coding data of the multimedia render object into
Row grouping: determining the quantity of worker thread, the multimedia coding data of the multimedia render object be divided into multiple groupings, point
The quantity of group is identical as the quantity of the worker thread.
Above-mentioned page data guiding device also has the following characteristics that
The worker thread processing module is also used for following methods for multimedia file and is sent to main thread processing mould
Block: the multimedia file obtained in the multiple worker thread is sent to main thread by way of sending message.
Above-mentioned page data guiding device also has the following characteristics that
The data acquisition module, for obtaining the multimedia coding number of each multimedia render object using following methods
According to: multimedia data type in setting transfer function；The transfer function is used for multimedia render object to multimedia coding
Data uniform resource identifier；The transfer function is called, the corresponding multimedia coding number of the multimedia render object is obtained
According to uniform resource identifier.
The present invention handles the biggish data processing work of calculation amount by the parallel progress of work, realizes in the same time
The execution of multiple JavaScript scripts, shares the processing pressure of browser main thread in terms of operating system, and main thread is only born
It blames from worker thread and receives the data and integration that processing is completed, can quickly export multi-medium data in browser end while guarantee
The normal operation of browser end.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of page multi-medium data deriving method in embodiment；
Fig. 2 is the structure chart of page multi-medium data guiding device in embodiment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.It needs
Illustrate, in the absence of conflict, the features in the embodiments and the embodiments of the present application can mutual any combination.
As shown in Figure 1, page data deriving method in embodiment, comprising:
Step 101, the multimedia render object in the page is obtained；
Step 102, the multimedia coding data of each multimedia render object are obtained；
Step 103, using multiple worker thread parallel processing multimedia coded datas, multimedia coding data are converted to
Multimedia file；
Step 104, the multimedia file obtained in multiple worker threads is sent to main thread, is carried out by main thread more
Media file integration.
The present invention handles the biggish data processing work of calculation amount by the parallel progress of work, realizes in the same time
The execution of multiple JavaScript scripts, shares the processing pressure of browser main thread in terms of operating system, and main thread is only born
It blames from worker thread and receives the data and integration that processing is completed, can quickly export multi-medium data in browser end while guarantee
The normal operation of browser end.
Wherein,
It includes: more in setting transfer function that the multimedia coding data of each multimedia render object are obtained in step 102
Media data type；This transfer function is used for multimedia render object to multimedia coding data uniform resource identifier；It adjusts
With this transfer function, the corresponding multimedia coding data uniform resource identifier of multimedia render object is obtained.
Multi-medium data includes image data, audio data, video data etc. in this method.By taking image data as an example, adjust
It is HTMLCanvasElement.toDataURL () with transfer function, for obtaining the data URI comprising image data.It can
With the type for the type parameter setting picture being arranged in this function, such as it is the types such as PNG, JPG that the type of picture, which can be set,.
After step 102 obtains the multimedia coding data of each multimedia render object, the method further include: to multimedia
The multimedia coding data of render object are grouped.It is encoded in step 103 using multiple worker thread parallel processing multimedias
Data include: using the multimedia coding data in multiple worker thread parallel processings grouping.Wherein, to multimedia render object
Multimedia coding data be grouped the quantity for comprising determining that worker thread, by the multimedia coding of multimedia render object
Data are divided into multiple groupings, and the quantity of grouping and the quantity of worker thread are identical.By the multimedia coding of multimedia render object
Data can be grouped when being grouped by strategy, can be grouped by preset strategy, according to particular number (such as with referring to
Fixed number purpose mode) it is distributed equally, or be distributed equally according to file size.The feelings of negligible amounts under normal conditions
Condition directly basis, which specifies number, averagely, if quantity is more, need according to file entirety size and known client
The critical value size that can be handled is grouped.
Main thread notice WebKit creates worker thread in step 103, and WebKit records the script text of worker thread task
Part, creation worker thread call transfer function to obtain multimedia file in worker thread.
It includes: to be disappeared by sending that the multimedia file obtained in multiple worker threads, which is sent to main thread, in step 104
The multimedia file obtained in multiple worker threads is sent to main thread by the mode of breath.
In this method, reads and writes and export in browser end realization mass data, it is possible to reduce the consumption of server-side, for height
Concurrent scene easily can discharge service end pressure by the above-mentioned function of the browser of user.This method can browse
Device end is independently realized, customization demand is independently done, without considering the coupled problem of browser end and server end.This method is being answered
Still higher processing speed can be kept when to concurrent scene.
As shown in Fig. 2, page data guiding device in embodiment, comprising:
Module is obtained to picture, for obtaining the multimedia render object in the page；
Data acquisition module, for obtaining the multimedia coding data of each multimedia render object；
Worker thread processing module will be more for using multimedia coding data described in multiple worker thread parallel processings
Media coding data are converted to multimedia file, and multimedia file is sent to main thread processing module；
Main thread processing module, for carrying out multimedia file integration.
Wherein,
Data acquisition module, for obtaining the multimedia coding data of each multimedia render object using following methods:
Multimedia data type in transfer function is set；The transfer function is used for multimedia render object to multimedia coding data
Uniform resource identifier；The transfer function is called, the corresponding multimedia coding data system of the multimedia render object is obtained
One resource identifier.
This device further includes grouping module, is divided for the multimedia coding data to the multimedia render object
Group.The worker thread processing module, for being compiled using following methods using multimedia described in multiple worker thread parallel processings
Code data: the multimedia coding data in grouping described in multiple worker thread parallel processings are used.
This grouping module is also used for following methods and carries out to the multimedia coding data of the multimedia render object
Grouping: determining the quantity of worker thread, the multimedia coding data of the multimedia render object be divided into multiple groupings,
The quantity of grouping is identical as the quantity of the worker thread.
Worker thread processing module is also used for following methods for multimedia file and is sent to main thread processing module:
The multimedia file obtained in the multiple worker thread is sent to main thread by way of sending message.
Descriptions above can combine implementation individually or in various ways, and these variants all exist
Within protection scope of the present invention.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits also can be used to realize, accordingly in all or part of the steps of above-described embodiment
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that including the article of a series of elements or equipment not only includes those elements, but also including not having
There is the other element being expressly recited, or further includes for this article or the intrinsic element of equipment.Do not limiting more
In the case where system, the element that is limited by sentence " including ... ", it is not excluded that in the article or equipment for including the element
There is also other identical elements.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, reference only to preferred embodiment to this hair
It is bright to be described in detail.Those skilled in the art should understand that can modify to technical solution of the present invention
Or equivalent replacement should all cover in claim model of the invention without departing from the spirit and scope of the technical solution of the present invention
In enclosing.
Claims (10)
1. a kind of page data deriving method, comprising:
Obtain the multimedia render object in the page；
Obtain the multimedia coding data of each multimedia render object；
Using multimedia coding data described in multiple worker thread parallel processings, multimedia coding data are converted into multimedia text
Part；
The multimedia file obtained in the multiple worker thread is sent to main thread, multimedia is carried out by the main thread
Integrating documents.
2. page data deriving method as described in claim 1, which is characterized in that
After the multimedia coding data for obtaining each multimedia render object, the method also includes: the multimedia is rendered
The multimedia coding data of picture are grouped；
Multimedia coding data described in the multiple worker thread parallel processings of the use include: to be located parallel using multiple worker threads
Manage the multimedia coding data in the grouping.
3. page data deriving method as claimed in claim 2, which is characterized in that
The multimedia coding data to the multimedia render object, which are grouped, includes:
The multimedia coding data of the multimedia render object are divided into multiple groupings by the quantity for determining worker thread, grouping
Quantity it is identical as the quantity of the worker thread.
4. page data deriving method as described in claim 1, which is characterized in that
It is described the multimedia file obtained in the multiple worker thread is sent to main thread to include:
The multimedia file obtained in the multiple worker thread is sent to main thread by way of sending message.
5. page data deriving method as described in claim 1, which is characterized in that
The multimedia coding data for obtaining each multimedia render object include:
Multimedia data type in transfer function is set；The transfer function is used for multimedia render object to multimedia coding
Data uniform resource identifier；
The transfer function is called, the corresponding multimedia coding data uniform resource identifier of the multimedia render object is obtained
Symbol.
6. a kind of page data guiding device, comprising:
Module is obtained to picture, for obtaining the multimedia render object in the page；
Data acquisition module, for obtaining the multimedia coding data of each multimedia render object；
Worker thread processing module, for using multimedia coding data described in multiple worker thread parallel processings, by multimedia
Coded data is converted to multimedia file, and multimedia file is sent to main thread processing module；
Main thread processing module, for carrying out multimedia file integration.
7. page data guiding device as claimed in claim 6, which is characterized in that
Described device further includes grouping module, is grouped for the multimedia coding data to the multimedia render object；
The worker thread processing module, for being compiled using following methods using multimedia described in multiple worker thread parallel processings
Code data: the multimedia coding data in grouping described in multiple worker thread parallel processings are used.
8. page data guiding device as claimed in claim 7, which is characterized in that
The grouping module is also used for following methods and divides the multimedia coding data of the multimedia render object
Group: determining the quantity of worker thread, and the multimedia coding data of the multimedia render object are divided into multiple groupings, grouping
Quantity is identical as the quantity of the worker thread.
9. page data guiding device as claimed in claim 6, which is characterized in that
The worker thread processing module is also used for following methods for multimedia file and is sent to main thread processing module:
The multimedia file obtained in the multiple worker thread is sent to main thread by way of sending message.
10. page data guiding device as claimed in claim 6, which is characterized in that
The data acquisition module, for obtaining the multimedia coding data of each multimedia render object using following methods:
Multimedia data type in transfer function is set；The transfer function is used for multimedia render object to multimedia coding data
Uniform resource identifier；The transfer function is called, the corresponding multimedia coding data system of the multimedia render object is obtained
One resource identifier.
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| CN201810095377.8A CN110119452A (en) | 2018-01-31 | 2018-01-31 | A kind of page multi-medium data deriving method and device |
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| CN201810095377.8A CN110119452A (en) | 2018-01-31 | 2018-01-31 | A kind of page multi-medium data deriving method and device |
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| CN104461412A (en) * | 2014-12-30 | 2015-03-25 | 广州视源电子科技股份有限公司 | Web page designated area printing method and system |
| CN106649716A (en) * | 2016-12-21 | 2017-05-10 | 北京致远互联软件股份有限公司 | Multithread-based online file format conversion method and system |
-
2018
- 2018-01-31 CN CN201810095377.8A patent/CN110119452A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030023630A1 (en) * | 2001-07-26 | 2003-01-30 | Barmettler James W. | Printing a well-defined subset of an HTML page |
| CN104461412A (en) * | 2014-12-30 | 2015-03-25 | 广州视源电子科技股份有限公司 | Web page designated area printing method and system |
| CN106649716A (en) * | 2016-12-21 | 2017-05-10 | 北京致远互联软件股份有限公司 | Multithread-based online file format conversion method and system |
Non-Patent Citations (1)
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Application publication date: 20190813 |