CN105491386B - A kind of format conversion method and device of video data - Google Patents
A kind of format conversion method and device of video data Download PDFInfo
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- CN105491386B CN105491386B CN201410482570.9A CN201410482570A CN105491386B CN 105491386 B CN105491386 B CN 105491386B CN 201410482570 A CN201410482570 A CN 201410482570A CN 105491386 B CN105491386 B CN 105491386B
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Abstract
The invention discloses a kind of format conversion method of video data and devices: each frame original video data received is decoded into predetermined format respectively；For decoded every frame video data, when determining it, there are when corresponding intelligent information, corresponding intelligent information is added on the frame video data, and the frame video data for being superimposed with intelligent information is recoded according to scheduled compressed format, otherwise, directly the frame video data is recoded according to scheduled compressed format；Each frame video data after recodification is packaged into target code stream.Using scheme of the present invention, the information content for showing user can be enriched.
Description
Technical field
The present invention relates to data processing technique, in particular to the format conversion method and device of a kind of video data.
Background technique
The format of video data is converted, and is referred to and is packaged to original video data and the conversion of coded format etc., turns
The image information for changing front and back is almost the same, the information except original image information, such as intelligent information can not be added, to limit
The subsequent information content for showing user.
Summary of the invention
In view of this, can enrich and show the present invention provides a kind of format conversion method of video data and device
The information content of user.
In order to achieve the above object, the technical scheme of the present invention is realized as follows:
A kind of format conversion method of video data, comprising:
Each frame original video data received is decoded into predetermined format respectively；
For decoded every frame video data, when determining that it, there are when corresponding intelligent information, corresponding intelligence is believed
Breath is added on the frame video data, and the frame video data for being superimposed with intelligent information is carried out according to scheduled compressed format
It recodes, otherwise, directly the frame video data is recoded according to scheduled compressed format；
Each frame video data after recodification is packaged into target code stream.
A kind of format conversion apparatus of video data, comprising: parsing module, decoder module, information Fusion Module, coding mould
Block and synthesis module；
The parsing module for obtaining each frame original video data, and is sent to the decoder module；
The decoder module is sent after each frame original video data received is decoded into predetermined format respectively
To the information Fusion Module；
The information Fusion Module, for for the every frame video data received, there are corresponding intelligence when determining it
When information, after corresponding intelligent information is added on the frame video data, it is sent to the coding module, otherwise, directly will
The frame video data is sent to the coding module；
The coding module is recoded according to scheduled compressed format respectively for that will receive each frame video data
Afterwards, it is sent to the synthesis module；
The synthesis module, for each frame video data received to be packaged into target code stream.
As it can be seen that, for video data, intelligence letter can be superimposed except original image information using scheme of the present invention
Breath to realize the information fusion of video data and intelligent information, and then enriches the subsequent information content for showing user；
Moreover, scheme of the present invention implement it is simple and convenient, consequently facilitating being popularized and being promoted.
Detailed description of the invention
Fig. 1 is the flow chart of the format conversion method embodiment of video data of the present invention.
Fig. 2 is the process schematic that the present invention is superimposed intelligent information on video data.
Fig. 3 is the component value storage format schematic diagram of each pixel under existing YV12 format.
Fig. 4 is the composed structure schematic diagram of the format conversion apparatus embodiment of video data of the present invention.
Specific embodiment
Aiming at the problems existing in the prior art, a kind of format conversion plan of video data, energy are provided in the present invention
Enough abundant information contents etc. for showing user.
In order to be clearer and more clear technical solution of the present invention, hereinafter, referring to the drawings and the embodiments, to institute of the present invention
The scheme of stating is described in further detail.
Fig. 1 is the flow chart of the format conversion method embodiment of video data of the present invention.As shown in Figure 1, including following step
Rapid 11~13.
Step 11: each frame original video data received is decoded into predetermined format respectively.
In practical applications, original video data can be extracted from container, and is decoded into predetermined format respectively,
The predetermined format can be yuv format or rgb format etc..
Step 12: decoded every frame video data is directed to, when determining that it, will be corresponding there are when corresponding intelligent information
Intelligent information is added on the frame video data, and will be superimposed with the frame video data of intelligent information according to scheduled compression lattice
Formula is recoded, and otherwise, directly the frame video data is recoded according to scheduled compressed format.
It can be directly by it according to scheduled compression lattice for decoded every frame video data according to existing processing mode
Formula is recoded, and after using scheme of the present invention, for decoded every frame video data, corresponded to when determining that it exists
Intelligent information when, can corresponding intelligent information is added on the frame video data first, then will be superimposed with intelligent letter again
The frame video data of breath is recoded according to scheduled compressed format, otherwise, i.e., when determining that the frame video data is not present
When corresponding intelligent information, just directly the frame video data can be recoded according to scheduled compressed format.
The scheduled compressed format is specially which kind of format can be determined according to actual needs.
Step 13: each frame video data after recodification is packaged into target code stream.
In this step, can carrying out that treated according to mode shown in step 12, each frame video data is packaged into target code stream
And it exports, the subsequent display that video pictures and intelligent information can be carried out on ordinary playing device.
The specific implementation of step 11 and step 13 is the prior art, how to carry out recoding described in step 12 same
It for the prior art, repeating no more, mainly how to realize video counts to how to be superimposed intelligent information on video data below
It is described in detail according to the information fusion with intelligent information.
One) information merges
Specifically, for decoded every frame video data, can determine whether that the frame video counts have been received respectively
According to corresponding intelligent information；If it is, the intelligent information received is added on the frame video data；If it is not, then needle
Intelligent information retrieval is carried out to the frame video data, and when extracting result is not sky, the intelligent information extracted is superimposed
Onto the frame video data.
That is, when needing to a certain frame video data overlay intelligent information, if having been received that the frame regards
The intelligent information received then can directly be added on the frame video data by frequency according to corresponding intelligent information；Otherwise, it can press
According to existing way, intelligent information retrieval is carried out for the frame video data, and when extracting result is not sky, by what is extracted
Intelligent information is added on the frame video data；If both not receiving intelligent information, intelligent information is not also extracted, then then
Without being superimposed intelligent information on the frame video data.
In practical applications, user prespecified may need to show which intelligent information (needed for oneself), without
It is to show all intelligent information receiving or extracting, in this way, every frame video data is directed to, when this has been received in determination
When the corresponding intelligent information of frame video data, it is also necessary to whether further determine that in the intelligent information received comprising needed for user
Intelligent information, if it is, intelligent information needed for receive, user is added on the frame video data；If not,
It then can be used and do not receive the processing mode as the corresponding intelligent information of frame video data, that is, be directed to the frame video data
Intelligent information retrieval is carried out, and when extracting result is not sky, the intelligent information extracted is added to the frame video data
On, specifically, intelligent information retrieval needed for user being carried out for the frame video data, and be not empty when extracting result
When, intelligent information needed for extract, user is added on the frame video data.
The intelligent information typically includes, but not limited to: target following frame, motion profile, warning line, temperature figure, character
Deng.
In addition, for every frame video data, intelligent information is added on the frame video data in scheme of the present invention
Mode can are as follows: by intelligent information be abstracted as image pixel information rule；According to the image pixel information rule taken out to this
Frame video data is modified.
Image pixel information rule can include: the pixel position for needing to modify and modified value etc..
The pixel for needing to modify may be independent point, or be combined into the form of line or frame, to the value of pixel
It modifies, can behave as color and/or transparency of pixel etc. and change.
Based on above-mentioned introduction, Fig. 2 is the process schematic that the present invention is superimposed intelligent information on video data.Such as Fig. 2 institute
Show, includes the following steps 21~28.
Step 21: obtaining decoded each frame video data respectively.
Step 22: for the every frame video data got, determining whether that having received the frame video data corresponds to respectively
Intelligent information otherwise, execute step 25 if so, then follow the steps 23.
Step 23: determining whether comprising intelligent information needed for user in the intelligent information received, if it is, executing
Step 24, otherwise, step 25 is executed.
Step 24: using receive, intelligent information needed for user as the intelligent information of required superposition, executing step later
Rapid 27.
Step 25: intelligent information retrieval needed for carrying out user for the frame video data executes step 26 later.
Step 26: when extracting result is not sky, using extract, intelligent information needed for user as required superposition
Intelligent information executes step 27 later.
Step 27: the intelligent information of required superposition is abstracted as image pixel information rule.
Step 28: being modified, be superimposed with to the frame video data according to the image pixel information rule taken out
The frame video data of intelligent information.
In above-mentioned steps 27, how intelligent information is abstracted as image pixel information rule is the prior art.For example, drawing
It detected a target following frame in face, then the location information of each pixel on the target following frame and set
Value of modified each pixel etc. is image pixel information rule.
It is not limited in addition, how to be modified according to the image pixel information rule taken out to video data in step 28
System, can be determined according to actual needs.For example, other effects can also be used in such a way that individual element point is modified
The higher mode of rate.
By taking the YV12 format of plane (Planar) most common in coding and decoding video as an example, this yuv format is that plane is deposited
The 4:2:0 sampled data of storage, each pixel correspond to a Y-component value, and 4 adjacent pixels share a UV component
Value, Fig. 3 are the component value storage format schematic diagram of each pixel under existing YV12 format.As shown in figure 3, horizontal when needing to modify
When horizontal line, can successively each pixel on blocky modification line YUV component value, modified component value be abstracted by intelligent information and
At image pixel information rule determine；For vertical horizontal line, since the YUV component value of each pixel on line is not continuously to deposit
Storage, each pixel on line can be modified in the way of increment stepping by image width；For oblique line, to guarantee that pixel is close
Collection can traverse along horizontal direction (x-axis) when the slope value of oblique line is between [- 1,1] and modify each pixel, other slopes
Then (y-axis) traversal modifies each pixel to value along vertical direction.Frame is formed by connecting by line, does not have difference on technological essence,
It repeats no more.
The present invention discloses a kind of format conversion apparatus of video data.
Fig. 4 is the composed structure schematic diagram of the format conversion apparatus embodiment of video data of the present invention.As shown in figure 4, packet
It includes: parsing module, decoder module, information Fusion Module, coding module and synthesis module.
Parsing module for obtaining each frame original video data, and is sent to decoder module；
Decoder module is sent to letter after each frame original video data received is decoded into predetermined format respectively
Cease Fusion Module；
Information Fusion Module, for for the every frame video data received, there are corresponding intelligent information when determining it
When, after corresponding intelligent information is added on the frame video data, it is sent to coding module, otherwise, directly by the frame video
Data are sent to coding module；
Coding module, for that will receive after each frame video data recoded according to scheduled compressed format respectively,
It is sent to synthesis module；
Synthesis module, for each frame video data received to be packaged into target code stream.
Specifically,
Information Fusion Module for the every frame video data received can determine whether that the frame video has been received respectively
The corresponding intelligent information of data；If it is, the intelligent information received is added on the frame video data；If it is not, then
Intelligent information retrieval is carried out for the frame video data, and when extracting result is not sky, the intelligent information extracted is folded
It is added on the frame video data.
The intelligent information that information Fusion Module receives receives intelligent letter typically from parsing module, i.e. parsing module
After breath, information Fusion Module can be directly sent it to, the processing of decoder module is needed not move through.
In addition,
Information Fusion Module can be further used for, and for the every frame video data received, determine whether respectively
The corresponding intelligent information of frame video data is received, if it is, further determining that in the intelligent information received whether wrap
Containing intelligent information needed for user, if it is, intelligent information needed for receive, user is added to the frame video data
On；If not receiving the corresponding intelligent information of frame video data, or user institute is not included in the intelligent information received
The intelligent information needed, then intelligent information retrieval needed for carrying out user for the frame video data, and be not when extraction result
When empty, intelligent information needed for extract, user is added on the frame video data.
Further more,
Information Fusion Module can be for the every frame video data for needing to be superimposed intelligent information, respectively by the intelligence of required superposition
Information is image pixel information rule, and is modified according to image pixel information rule to the frame video data, is obtained
It is superimposed with the frame video data of intelligent information.
Wherein,
Image pixel information rule can include: the pixel position for needing to modify and modified value.
The specific workflow of Fig. 4 shown device embodiment please refers to the respective description in preceding method embodiment, herein
It repeats no more.
In short, for video data, intelligence letter can be superimposed except original image information using scheme of the present invention
Breath to realize the information fusion of video data and intelligent information, and then enriches the subsequent information content for showing user；
Moreover, scheme of the present invention implement it is simple and convenient, consequently facilitating being popularized and being promoted.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of format conversion method of video data characterized by comprising
Each frame original video data received is decoded into predetermined format respectively；
For decoded every frame video data, when determining that it, there are when corresponding intelligent information, corresponding intelligent information is folded
It is added on the frame video data, and the frame video data for being superimposed with intelligent information is rearranged according to scheduled compressed format
Code, otherwise, directly recodes the frame video data according to scheduled compressed format, wherein the intelligent information is former
Information except beginning image information；
Each frame video data after recodification is packaged into target code stream；
It is described to be directed to decoded every frame video data, when determining that it there are when corresponding intelligent information, corresponding intelligence is believed
It ceases on the frame video data that is added to and includes:
For decoded every frame video data, when not receiving the corresponding intelligent information of the frame video data, for the frame
Video data carries out intelligent information retrieval, and when extracting result is not sky, the intelligent information extracted is added to the frame
On video data.
2. the method according to claim 1, wherein
The intelligent information that will be received be added on the frame video data comprise determining that in the intelligent information received whether
Comprising intelligent information needed for user, if it is, intelligent information needed for receive, user is added to the frame video counts
According to upper；
It is described to carry out intelligent information retrieval for the frame video data, and in the intelligence that when extracting result is not sky, will be extracted
It can include: intelligent information retrieval needed for carrying out user for the frame video data in information superposition to the frame video data, and
When extracting result is not sky, intelligent information needed for extract, user is added on the frame video data；
This method further comprises: when the intelligent information needed for not including user in the intelligent information received, for the frame
Video data carry out user needed for intelligent information retrieval, and when extract result be not sky when, will be needed for extract, user
Intelligent information be added on the frame video data.
3. method according to claim 1 or 2, which is characterized in that
Described intelligent information is added on the frame video data include:
Intelligent information is abstracted as image pixel information rule；
It is modified according to described image Pixel Information rule to the frame video data.
4. according to the method described in claim 3, it is characterized in that,
Described image Pixel Information rule includes: the pixel position for needing to modify and modified value.
5. a kind of format conversion apparatus of video data characterized by comprising parsing module, decoder module, information merge mould
Block, coding module and synthesis module；
The parsing module for obtaining each frame original video data, and is sent to the decoder module；
The decoder module is sent to institute after each frame original video data received is decoded into predetermined format respectively
State information Fusion Module；
The information Fusion Module, for for the every frame video data received, there are corresponding intelligent information when determining it
When, after corresponding intelligent information is added on the frame video data, it is sent to the coding module, otherwise, directly by the frame
Video data is sent to the coding module, wherein the intelligent information is the information except raw frames information；
The coding module, for that will receive after each frame video data recoded according to scheduled compressed format respectively,
It is sent to the synthesis module；
The synthesis module, for each frame video data received to be packaged into target code stream；
The information Fusion Module is also used to for decoded every frame video data, corresponding when not receiving the frame video data
Intelligent information when, for the frame video data carry out intelligent information retrieval, and when extract result be not sky when, will extract
Intelligent information be added on the frame video data.
6. device according to claim 5, which is characterized in that
The information Fusion Module is further used for, and for the every frame video data received, determines whether respectively received
To the corresponding intelligent information of frame video data, if it is, whether further determining that in the intelligent information received comprising using
Intelligent information needed for family, if it is, intelligent information needed for receive, user is added on the frame video data；
If not receiving the corresponding intelligent information of frame video data, or do not include needed for user in the intelligent information received
Intelligent information, then for the frame video data carry out user needed for intelligent information retrieval, and when extract result be not sky when,
Intelligent information needed for extract, user is added on the frame video data.
7. device according to claim 5 or 6, which is characterized in that
The information Fusion Module is directed to the every frame video data for needing to be superimposed intelligent information, respectively believes the intelligence of required superposition
Breath is abstracted as image pixel information rule, and is modified according to described image Pixel Information rule to the frame video data, obtains
To the frame video data for being superimposed with intelligent information.
8. device according to claim 7, which is characterized in that
Described image Pixel Information rule includes: the pixel position for needing to modify and modified value.
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| CN102694985A (en) * | 2011-03-22 | 2012-09-26 | 杭州普维光电技术有限公司 | Information superposition method, information extraction method, apparatus and system of video images |
| CN103402100A (en) * | 2013-08-23 | 2013-11-20 | 北京奇艺世纪科技有限公司 | Video processing method and mobile terminal |
| CN103888840A (en) * | 2014-03-27 | 2014-06-25 | 电子科技大学 | Method and device for dragging and zooming video mobile terminal in real time |
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| TW200952486A (en) * | 2008-06-13 | 2009-12-16 | Ind Tech Res Inst | Video surveillance system, module and method for annotation and de-annotation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694985A (en) * | 2011-03-22 | 2012-09-26 | 杭州普维光电技术有限公司 | Information superposition method, information extraction method, apparatus and system of video images |
| CN103402100A (en) * | 2013-08-23 | 2013-11-20 | 北京奇艺世纪科技有限公司 | Video processing method and mobile terminal |
| CN103888840A (en) * | 2014-03-27 | 2014-06-25 | 电子科技大学 | Method and device for dragging and zooming video mobile terminal in real time |
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