CN104780390A - Video processing method and device - Google Patents
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- CN104780390A CN104780390A CN201510162080.5A CN201510162080A CN104780390A CN 104780390 A CN104780390 A CN 104780390A CN 201510162080 A CN201510162080 A CN 201510162080A CN 104780390 A CN104780390 A CN 104780390A
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- 238000003672 processing method Methods 0.000 title abstract 4
- 238000012545 processing Methods 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 45
- 238000012546 transfer Methods 0.000 claims description 38
- 230000008569 process Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
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Classifications
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a video processing method and device, relates to the technical field of image processing and aims to increase the processing speed of teaching application. The video processing method comprises steps as follows: acquiring video data sent by a sending terminal; converting the video data into picture data; sending the picture data to a receiving terminal to enable the receiving terminal to use the teaching application to display the picture data. The video processing method and device can increase the processing speed of the teaching application and are mainly applied to teaching systems.
Description
Technical field
The present invention relates to technical field of image processing, particularly a kind of method for processing video frequency and device.
Background technology
Along with the development of technology, in the teaching of teacher, employ various teaching application widely.Such as, teaching video can be sent to student by teaching application by teacher, and then, student can utilize teaching application to show after have received this teaching video.But student needs integrated video display in teaching application when showing this teaching video, could show this teaching video by utilizing this video display.Therefore, this just makes the processing speed of teaching application slower.
Summary of the invention
The invention provides a kind of method for processing video frequency and device, in order to improve the processing speed of teaching application.
A kind of method for processing video frequency of the present invention, comprising:
Obtain the video data that transmitting terminal sends;
Convert described video data to image data;
Send described image data to receiving terminal, make described receiving terminal utilize the described image data of teaching application display.
Some beneficial effects of the embodiment of the present invention can comprise:
By converting the video data of transmitting terminal to image data, thus the teaching of receiving terminal application can be play this image data without the need to integrated video display, therefore, compared with prior art, the method for the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In one embodiment, convert described video data to image data to comprise:
Described video data is decoded, obtains the video data of the first form;
The video data of described first form is converted to the video data of the second form;
Every frame video subdata in the video data of described second form is converted to corresponding image data.
Convert video data to image data by this kind of mode, the compatibility of image data is high, thus the process of receiving terminal can be made more convenient.
In one embodiment, described convert described video data to image data after, described method also comprises: be stored in internal memory by described image data.
Image data is stored in internal memory and the transport process of image data can be made to cushion, thus convenient receiving terminal obtains this image data, improve processing speed.
A kind of method for processing video frequency of the present invention, comprising:
Obtain image data, described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit);
Utilize the described image data of teaching application display.
Some beneficial effects of the embodiment of the present invention can comprise:
By obtaining the image data converted to according to the video data of transmitting terminal, thus teaching application can be play this image data without the need to integrated video display, therefore, compared with prior art, the method for the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In one embodiment, described acquisition image data comprises: from the internal memory of described DTU (Data Transfer unit), obtain image data; The described image data of described utilization teaching application display comprises: utilize teaching application call picture display control, show described image data according to predetermined speed.
Image data is obtained from the internal memory of DTU (Data Transfer unit), more convenient, thus improve processing speed.And utilize picture display control to show this image data according to predetermined speed, can user friendlyly watch.
A kind of DTU (Data Transfer unit) of the present invention, comprising:
Receiving element, for obtaining the video data that transmitting terminal sends;
Converting unit, for converting described video data to image data;
Transmitting element, for sending described image data to receiving terminal, makes described receiving terminal utilize the described image data of teaching application display.
Some beneficial effects of the embodiment of the present invention can comprise:
By converting the video data of transmitting terminal to image data, thus the teaching of receiving terminal application can be play this image data without the need to integrated video display, therefore, compared with prior art, the device of the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In one embodiment, described converting unit comprises:
Decoder module, for being decoded by described video data, obtains the video data of the first form;
Modular converter, for the video data of described first form being converted to the video data of the second form, and converts corresponding image data to by the every frame video subdata in the video data of described second form.
Convert video data to image data by this kind of mode, the compatibility of image data is high, thus the process of receiving terminal can be made more convenient.
In one embodiment, described device also comprises:
Memory cell, for being stored in described image data in internal memory.
Image data is stored in internal memory and the transmission of image data can be made to cushion, thus convenient receiving terminal obtains this image data, improve processing speed.
A kind of data sink of the present invention, comprising:
Acquiring unit, for obtaining image data, described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit);
Processing unit, for utilizing the described image data of teaching application display.
Some beneficial effects of the embodiment of the present invention can comprise:
By obtaining the image data converted to according to the video data of transmitting terminal, thus teaching application can be play this image data without the need to integrated video display, therefore, compared with prior art, the device of the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In one embodiment, described acquiring unit specifically for: from the internal memory of described DTU (Data Transfer unit), obtain described image data; Described processing unit specifically for: utilize teaching application call picture display control, show described image data according to predetermined speed.
Image data is obtained from the internal memory of DTU (Data Transfer unit), more convenient, thus improve processing speed.And utilize picture display control to show this image data according to predetermined speed, can user friendlyly watch.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of method for processing video frequency of the embodiment of the present invention;
Fig. 2 is the another flow chart of a kind of method for processing video frequency of the embodiment of the present invention;
Fig. 3 is the schematic diagram of a kind of DTU (Data Transfer unit) of the embodiment of the present invention;
Fig. 4 is the structure chart of a kind of DTU (Data Transfer unit) of the embodiment of the present invention;
Fig. 5 is the schematic diagram of a kind of data sink of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of method for processing video frequency of the embodiment of the present invention, comprising:
Step 11, DTU (Data Transfer unit) obtain the video data that transmitting terminal sends.
The method of the embodiment of the present invention is mainly used in tutoring system.Wherein, this tutoring system can comprise transmitting terminal, receiving terminal and DTU (Data Transfer unit).Wherein transmitting terminal refers to the side providing video data, and accordingly, receiving terminal refers to the side receiving following image data, and DTU (Data Transfer unit) can be integrated in data server, for video data is converted to image data.Such as, be a teacher when transmitting file to student, teaching equipment one side that teacher uses is transmitting terminal, and a side of the equipment that student uses is receiving terminal.
Therefore, transmitting terminal sends video data to DTU (Data Transfer unit), and accordingly, DTU (Data Transfer unit) just obtains the video data that transmitting terminal sends.Wherein, described video data is H.264 form.Wherein, H.264 be the new-generation digital video compression format after the common MPEG4 that continues (MovingPicture Experts Group, Motion Picture Experts Group) proposed of International Organization for standardization (ISO) and International Telecommunication Union (ITU).
Step 12, DTU (Data Transfer unit) convert described video data to image data.
In this step, first described video data decodes by DTU (Data Transfer unit), obtains the video data of the first form.Then the video data of described first form is converted to the video data of the second form then.Finally, the every frame video subdata in the video data of described second form is converted to corresponding image data.Wherein, described first form can be yuv (brightness, colourity) 420p form, and the second form can be RGB (Red, Green, Blue, red, green, blue) form.
Concrete, the H.264 video data that transmitting terminal sends obtains the frame of video of yuv420p form after DTU (Data Transfer unit) decoding.Then, the frame of video of each yuv420p form is converted to the frame of video of rgb format by DTU (Data Transfer unit).Finally, the frame of video of rgb format is converted to corresponding jpeg picture by DTU (Data Transfer unit) again.Wherein, convert by the video data of H.264 form the process implementation that the frame of video of yuv420p form, the frame of video being converted to rgb format by the frame of video of yuv420p form and the process that the frame of video of rgb format converted to corresponding jpeg picture all can utilize prior art to, do not repeat them here.Convert video data to image data by this kind of mode, the compatibility of image data is high, thus the process of receiving terminal can be made more convenient.
In embodiments of the present invention, image data is the image data of jpeg form.Certainly, be understandable that, in embodiments of the present invention, described first form or the second form can also be the forms of other types, and image data also can be the picture of other types, as bitmap.But, be no matter the video data used in the embodiment of the present invention or image data be exist in what manner, as long as can be shown receiving end by the image data be converted to of the video data of different-format.
Step 13, DTU (Data Transfer unit) send described image data to receiving terminal, make described receiving terminal utilize the described image data of teaching application display.
In embodiments of the present invention, described teaching application refers to some application software of assisted teaching system, such as the software etc. of playing pictures file.
In this embodiment, by converting the video data of transmitting terminal to image data, thus the teaching of receiving terminal application can be play this image data without the need to integrated video display, therefore, compared with prior art, the method for the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In addition, in order to make the transport process of image data cushion, thus convenient receiving terminal obtains this image data, and improve processing speed, the method for the embodiment of the present invention also can comprise after step 12: be stored in internal memory by described image data.
As shown in Figure 2, a kind of method for processing video frequency of the embodiment of the present invention, comprising:
Step 21, receiving terminal obtain image data, and described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit).
Concrete, in embodiments of the present invention, receiving terminal directly can obtain image data by DTU (Data Transfer unit), or obtains image data by the internal memory of DTU (Data Transfer unit).That is, if this image data not to be stored in internal memory but directly to send to receiving terminal after converting by DTU (Data Transfer unit), so receiving terminal just directly can obtain image data by DTU (Data Transfer unit).If DTU (Data Transfer unit) is stored in internal memory after converting image data, so receiving terminal can obtain this image data by the internal memory of DTU (Data Transfer unit).Image data is obtained from the internal memory of DTU (Data Transfer unit), more convenient, thus improve the processing speed of receiving terminal.
Concrete, when image data is stored in its internal memory by DTU (Data Transfer unit), receiving terminal, when obtaining, obtains by the mode called as minor function:
MemoryStream Stream=new MemoryStream ((byte []) rows); // convert the jpeg picture in rows to stream (stream).
Step 22, receiving terminal utilize the described image data of teaching application display.
In this step, receiving terminal can utilize teaching application call picture display control, shows described image data according to predetermined speed.
In a particular application, following setting is first done:
Use NameSpace: System.Windows.Controls
Control: Image
Using method: public class Image:public FrameworkElement, IUriContext
After carrying out above-mentioned setting, after receiving this image data, receiving terminal, by calling with minor function, calls picture display control:
Image myImage=Image.FromStream (Stream); // by the Data import of MemoryStream type in control myImage.
After calling picture display control, run with minor function, realize the display to picture:
DrawImage (myImage, points); // myImage picture is drawn in the window of specifying.
In the process of display, in order to reduce delay, facilitate user to watch, the predetermined speed average rate that picture display control can be opened with 15-20 per second Shows Picture.
In embodiments of the present invention, by obtaining the image data converted to according to the video data of transmitting terminal, thus teaching application can be play this image data without the need to integrated video display, therefore, compared with prior art, the method for the embodiment of the present invention is utilized to improve the processing speed of teaching application.
As shown in Figure 3, a kind of DTU (Data Transfer unit) of the embodiment of the present invention, comprising:
Receiving element 31, for obtaining the video data that transmitting terminal sends;
Converting unit 32, for converting described video data to image data;
Transmitting element 33, for sending described image data to receiving terminal, makes described receiving terminal utilize the described image data of teaching application display.
Wherein, described converting unit comprises: decoder module, for being decoded by described video data, obtains the video data of the first form; Modular converter, for the video data of described first form being converted to the video data of the second form, and converts corresponding image data to by the every frame video subdata in the video data of described second form.Convert video data to image data by this kind of mode, the compatibility of image data is high, thus the process of receiving terminal can be made more convenient.
Wherein, described first form can be yuv420p form, and the second form can be RGB (Red, Green, Blue, red, green, blue) form.
As shown in Figure 4, described device also can comprise: memory cell 34, for being stored in internal memory by described image data.Image data is stored in internal memory and the transmission of image data can be made to cushion, thus convenient receiving terminal obtains this image data, improve processing speed.
The operation principle of Fig. 3 or Fig. 4 shown device can refer to the description of preceding method embodiment, and this device can be arranged in the data server of tutoring system.
In this embodiment, by converting the video data of transmitting terminal to image data, thus the teaching of receiving terminal application can be play this image data without the need to integrated video display, therefore, compared with prior art, the device of the embodiment of the present invention is utilized to improve the processing speed of teaching application.
As shown in Figure 5, the invention provides a kind of data sink, comprising:
Acquiring unit 51, for obtaining image data, described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit);
Processing unit 52, for utilizing the described image data of teaching application display.
Wherein, described acquiring unit 51 specifically for: from the internal memory of described DTU (Data Transfer unit), obtain described image data; Described processing unit 52 specifically for: utilize teaching application call picture display control, show described image data according to predetermined speed.
Image data is obtained from the internal memory of DTU (Data Transfer unit), more convenient, thus improve processing speed.And utilize picture display control to show this image data according to predetermined speed, can user friendlyly watch.
The operation principle of Fig. 5 shown device can refer to the description of preceding method embodiment.
In this embodiment, by obtaining the image data converted to according to the video data of transmitting terminal, thus teaching application can be play this image data without the need to integrated video display, therefore, compared with prior art, the device of the embodiment of the present invention is utilized to improve the processing speed of teaching application.
In addition, the embodiment of the present invention also can comprise a kind of tutoring system, comprise transmitting terminal, data server and receiving terminal, wherein said transmitting terminal or receiving terminal can comprise the data sink shown in Fig. 5, and data server can comprise the data processing equipment shown in Fig. 3 or Fig. 4.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable vision treatment facilities to produce a machine, making the instruction performed by the processor of computer or other programmable vision treatment facilities produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable vision treatment facilities, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable vision treatment facilities, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a method for processing video frequency, is characterized in that, comprising:
Obtain the video data that transmitting terminal sends;
Convert described video data to image data;
Send described image data to receiving terminal, make described receiving terminal utilize the described image data of teaching application display.
2. method according to claim 1, is characterized in that, converts described video data to image data and comprises:
Described video data is decoded, obtains the video data of the first form;
The video data of described first form is converted to the video data of the second form;
Every frame video subdata in the video data of described second form is converted to corresponding image data.
3. method according to claim 1 and 2, is characterized in that, described convert described video data to image data after, described method also comprises:
Described image data is stored in internal memory.
4. a method for processing video frequency, is characterized in that, comprising:
Obtain image data, described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit);
Utilize the described image data of teaching application display.
5. method according to claim 4, is characterized in that, described acquisition image data comprises: from the internal memory of described DTU (Data Transfer unit), obtain image data;
The described image data of described utilization teaching application display comprises: utilize teaching application call picture display control, show described image data according to predetermined speed.
6. a DTU (Data Transfer unit), is characterized in that, comprising:
Receiving element, for obtaining the video data that transmitting terminal sends;
Converting unit, for converting described video data to image data;
Transmitting element, for sending described image data to receiving terminal, makes described receiving terminal utilize the described image data of teaching application display.
7. device according to claim 6, is characterized in that, described converting unit comprises:
Decoder module, for being decoded by described video data, obtains the video data of the first form;
Modular converter, for the video data of described first form being converted to the video data of the second form, and converts corresponding image data to by the every frame video subdata in the video data of described second form.
8. the device according to claim 6 or 7, is characterized in that, described device also comprises:
Memory cell, for being stored in described image data in internal memory.
9. a data sink, is characterized in that, comprising:
Acquiring unit, for obtaining image data, described image data is carried out being converted to by the video data of transmitting terminal by DTU (Data Transfer unit);
Processing unit, for utilizing the described image data of teaching application display.
10. device according to claim 9, is characterized in that,
Described acquiring unit specifically for: from the internal memory of described DTU (Data Transfer unit), obtain described image data;
Described processing unit specifically for: utilize teaching application call picture display control, show described image data according to predetermined speed.
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| CN201510162080.5A CN104780390A (en) | 2015-04-07 | 2015-04-07 | Video processing method and device |
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| CN201510162080.5A CN104780390A (en) | 2015-04-07 | 2015-04-07 | Video processing method and device |
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| CN109361935A (en) * | 2018-12-24 | 2019-02-19 | 广州微算互联信息技术有限公司 | Picture stream video transmission method and system |
| CN109698850A (en) * | 2017-10-23 | 2019-04-30 | 北京京东尚科信息技术有限公司 | Processing method and system |
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Application publication date: 20150715 |