CN105072487A - Video data processing method and device thereof - Google Patents
Video data processing method and device thereof Download PDFInfo
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- CN105072487A CN105072487A CN201510490747.4A CN201510490747A CN105072487A CN 105072487 A CN105072487 A CN 105072487A CN 201510490747 A CN201510490747 A CN 201510490747A CN 105072487 A CN105072487 A CN 105072487A
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- video data
- yuv format
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- 238000003672 processing method Methods 0.000 title abstract 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 41
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000009365 direct transmission Effects 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 239000002356 single layer Substances 0.000 abstract 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Systems (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention provides a video data processing method and a device thereof. The video data processing method comprises: a step of receiving video data; a step of judging whether or not the video data is single-layer video data; a step of judging whether or not the video data is of a YUV format if the video data is the single-layer video data; a step of directly transmitting the video data if the video data is of the YUV format, wherein the video data direct transmission step comprises a step of outputting the video data of the YUV format to a synthesis module of a display engine; and a step of outputting the video data of the YUV format out of the synthesis module through an output module of the display engine. The invention also provides a video data processing device using the video data processing method. The color space conversion in a video image display process is reduced, so that the video information loss is reduced, and the aims of avoiding video distortion and improving video quality under the situation of not increasing the cost are fulfilled.
Description
Technical field
The present invention relates to video data process field, particularly relate to a kind of video data handling procedure and video data processing apparatus.
Background technology
Vision signal generally can be interfered and produce distortion in transmitting procedure, make vision signal cannot the original image of real-playback in destination, therefore now normally by optional can better device and improve the means such as PCB layout and improve video playback quality to a certain extent, by increasing Circuit tuning, or the precision improving matrix operation promotes video index, both all can increase certain cost, and unavoidably still there is distortion.
Simultaneously, vision signal is when display engine carries out multi-layer image synthesis, synthesize again after needing that format conversion is carried out to vision signal, and just output in corresponding module after carrying out format conversion more in post synthesis and play, format conversion repeatedly makes each side such as video precision inherently cause the partial loss of video information, cause vision signal distortion to some extent, have impact on the display quality of video.
Summary of the invention
The first object of the present invention is to provide a kind of video data handling procedure promoting video quality.
The second object of the present invention is to provide a kind of video data processing apparatus promoting video quality.
In order to realize the first object of the present invention, the invention provides a kind of video data handling procedure, wherein, comprising: the step of receiving video data; Judge that whether video data is the step of free hand drawing layer video data; If video data is free hand drawing layer video data, then perform and judge that whether video data is the step of yuv format video data; If video data is yuv format video data, then perform the direct transmitting step of video data, the direct transmitting step of video data comprises: the step video data of yuv format being exported to the synthesis module of display engine; By the video data of yuv format from the step of synthesis module through the output module of display engine outputs to.
From such scheme, first the yuv format video data of video data whether free hand drawing layer is judged, in this way, then the yuv format video data of this free hand drawing layer is directly exported to the synthesis module of display engine, this video data can be thought the video data of rgb format by this synthesis module, thus reduce the conversion of primary video form, export output module to more subsequently, due to output module reception is yuv format video data, so do not need to carry out format conversion to it, from and reduce the conversion of primary video form, by reducing the color space conversion in video image procedure for displaying, reduce video information to lose, reach and do not increasing in cost situation, avoid video distortion, promote the object of video quality.
Further scheme is, if video data is not free hand drawing layer video data, then performs video data normal transmission step.
Further scheme is, if video data is not yuv format video data, then performs video data normal transmission step.
Further scheme is, video data normal transmission step comprises: step video data being exported to the modular converter of display engine; Video data is converted to the step of rgb format video data; Rgb format video data is exported to the step of synthesis module; Rgb format video data is carried out the step of synthesizing; Video data after synthesis is exported to the step of output module; Video data after synthesis is converted to the step of yuv format video data; By yuv format video data from the step output module outputs to.
Therefore, not free hand drawing layer as video data or be not the video data of yuv format, then carry out normal transmission step, due to display engine carry out the synthesis of multi-layer image time, need based on same color space, display engine generally adopts RGB color space, namely if the yuv format video data input of multi-layer image, need to convert thereof into rgb format, and then synthesize with other layer, and due to CVBS module receive be composite signal, video data after display engine synthesis needs to convert yuv format to again, finally export to CVBS module and carry out image display.
In order to realize the second object of the present invention, the invention provides a kind of video data processing apparatus, comprise for storage program memory and processor, wherein, processor is used for receiving video data, judges whether video data is free hand drawing layer video data, judges whether video data is yuv format video data and direct transmitting video data, direct transmitting video data be comprise the synthesis module that the video data of yuv format exported to display engine and by the video data of yuv format from synthesis module through the output module of display engine outputs to.
From such scheme, the processor in video data processing apparatus is utilized first to judge the yuv format video data of video data whether free hand drawing layer, in this way, then the yuv format video data of this free hand drawing layer is directly exported to the synthesis module of display engine, this video data can be thought the video data of rgb format by this synthesis module, thus reduce the conversion of primary video form, export output module to more subsequently, due to output module reception is yuv format video data, so do not need to carry out format conversion to it, from and reduce the conversion of primary video form, by reducing the color space conversion in video image procedure for displaying, reduce video information to lose, reach and do not increasing in cost situation, avoid video distortion, promote the object of video quality.
Accompanying drawing explanation
Fig. 1 is the flow chart of video data handling procedure embodiment of the present invention.
Fig. 2 is the flow chart of the direct transmitting step of video data in video data handling procedure embodiment of the present invention.
Fig. 3 is the flow chart of video data normal transmission step in video data handling procedure embodiment of the present invention.
Fig. 4 is the system block diagram of video data processing apparatus embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
Video data handling procedure embodiment:
With reference to the flow chart that Fig. 1, Fig. 1 are video data handling procedures.When video data is processed, first step S1 is performed, receiving video data, this video data comprises video data encoder, layer count information, layer format information etc., performs step S2 subsequently, judge whether video data is free hand drawing layer video data, namely detect the layer count information in video data, if layer count is 1, then this video data is the video data of free hand drawing layer, if not being 1, then it should be the video data of multi-layer image.
If video data is that free hand drawing layer video data then perform step S3, then judge whether video data is yuv format video data, namely by detecting the layer format information in video data, just can or this video data be whether the video data of yuv format.
If video data is yuv format video data, then perform step S4, namely perform the direct transmitting step of video data.If video data is not free hand drawing layer video data, then perform step S5, namely perform video data normal transmission step.If video data is not yuv format video data, then perform step S5, namely perform video data normal transmission step.
First judge whether video data is free hand drawing layer video data in the present embodiment; determine whether yuv format video data again; and in actual applications; its two step to be exchanged; namely yuv format video data is first determined whether; determine whether free hand drawing layer video data again; to realize object of the present invention equally; therefore free hand drawing layer video data can be met and yuv format video data just can perform the direct transmitting step of video data simultaneously, above-mentioned this side change is all in protection scope of the present invention.
With reference to the flow chart that Fig. 2, Fig. 2 are the direct transmitting steps of video data.When performing the direct transmitting step S4 of video data, first step S41 is performed, the video data of free hand drawing layer yuv format is exported to the synthesis module of display engine, this video data can be thought the video data of rgb format by synthesis module, and owing to being that free hand drawing layer does not need to synthesize, so continue to perform step S42, yuv format video data is exported to the output module of display engine, owing to being input to the video data of the yuv format of output module, so do not need to output to CVBS module from output module with carrying out format conversion to it again.
With reference to the flow chart that Fig. 3, Fig. 3 are video data normal transmission steps.When performing video data normal transmission step, first step S51 is performed, video data is exported to the modular converter of display engine, perform step 52 subsequently, video data is converted to rgb format video data, utilize rgb color through hole to carry out contract with other layer, then step S53 is performed, export rgb format video data to synthesis module, perform step S54 subsequently, the rgb format video data of multilayer is synthesized, then step S55 is performed, export the video data of the rgb format after synthesis to output module, perform step S56 subsequently, video data after synthesis is converted to yuv format video data by output module, finally perform step S57, yuv format video data is outputted to CVBS module from output module.
Video data processing apparatus embodiment:
Video data processing apparatus comprises memory and processor, memory is used for storage program, process is for performing this program, processor comprises judging unit 12 and display engine 13, display engine 13 comprises modular converter 131, synthesis module 132 and output module 133, judging unit 12 is for receiving video data 11, judging unit 12 is for judging whether video data is free hand drawing layer video data, judging unit 12 is also for judging whether video data is yuv format video data, if video data is free hand drawing layer video data and yuv format video data simultaneously, then processor is by direct transmitting video data, after exporting synthesis module 132 to by this yuv format video data, again the video data of yuv format is outputted to output module 133 from synthesis module 132, the video data of the yuv format not needing format conversion is outputted to CVBS module 14 by last output module 133.
If video data is not free hand drawing layer video data or yuv format video data, then processor normal transmission video data, modular converter 131 is exported to by video data, video data is converted to rgb format video data by modular converter 131 subsequently, then rgb format video data is exported to synthesis module 132, the rgb format video data of multi-layer image synthesizes by synthesis module 132 subsequently, then the video data after synthesis is exported to output module 133, video data after synthesis is converted to yuv format video data and yuv format video data is exported CVBS module 14 from output module by last output module 133.
Therefore, the processor in video data processing apparatus is utilized first to judge the yuv format video data of video data whether free hand drawing layer, in this way, then the yuv format video data of this free hand drawing layer is directly exported to the synthesis module of display engine, this video data can be thought the video data of rgb format by this synthesis module, thus reduce the conversion of primary video form, export output module to more subsequently, due to output module reception is yuv format video data, so do not need to carry out format conversion to it, from and reduce the conversion of primary video form, by reducing the color space conversion in video image procedure for displaying, reduce video information to lose, reach and do not increasing in cost situation, avoid video distortion, promote the object of video quality.
Claims (7)
1. video data handling procedure, is characterized in that, comprising:
The step of receiving video data;
Judge that whether described video data is the step of free hand drawing layer video data;
As described in video data be free hand drawing layer video data, then perform and judge that whether described video data is the step of yuv format video data;
As described in video data be yuv format video data, then perform video data direct transmitting step;
The direct transmitting step of described video data comprises:
The video data of yuv format is exported to the step of the synthesis module of display engine;
By the video data of yuv format from the step of described synthesis module through the output module of described display engine outputs to.
2. video data handling procedure according to claim 1, is characterized in that:
As described in video data be not free hand drawing layer video data, then perform video data normal transmission step.
3. video data handling procedure according to claim 1, is characterized in that:
As described in video data be not yuv format video data, then perform video data normal transmission step.
4. the video data handling procedure according to Claims 2 or 3, is characterized in that:
Described video data normal transmission step comprises:
Video data is exported to the step of the modular converter of described display engine;
Video data is converted to the step of rgb format video data;
Rgb format video data is exported to the step of described synthesis module;
Rgb format video data is carried out the step of synthesizing;
Video data after synthesis is exported to the step of described output module;
Video data after synthesis is converted to the step of yuv format video data;
By yuv format video data from the step described output module outputs to.
5. video data processing apparatus, comprises
Memory, for storage program;
It is characterized in that:
Processor, for receiving video data, judges whether described video data is free hand drawing layer video data, judges that whether described video data is yuv format video data and the direct described video data of transmission;
The described video data of direct transmission be the video data of yuv format is exported to display engine synthesis module and by the video data of yuv format from described synthesis module through the output module of described display engine outputs to.
6. video data processing apparatus according to claim 5, is characterized in that:
Described processor is also for video data described in normal transmission.
7. video data processing apparatus according to claim 6, is characterized in that:
Video data described in normal transmission be video data is exported to described display engine modular converter, video data is converted to rgb format video data, rgb format video data is exported to described synthesis module, rgb format video data is carried out synthesize, the video data after synthesis is exported to described output module, the video data after synthesis is converted to yuv format video data and by yuv format video data from described output module outputs to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490747.4A CN105072487A (en) | 2015-08-11 | 2015-08-11 | Video data processing method and device thereof |
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| CN201510490747.4A CN105072487A (en) | 2015-08-11 | 2015-08-11 | Video data processing method and device thereof |
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| CN201510490747.4A Pending CN105072487A (en) | 2015-08-11 | 2015-08-11 | Video data processing method and device thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547893A (en) * | 2016-09-12 | 2018-01-05 | 郑州蓝视科技有限公司 | The video data handling procedure of video monitoring |
| CN110187858A (en) * | 2016-09-28 | 2019-08-30 | 华为技术有限公司 | Image display method and system |
| CN114928730A (en) * | 2022-06-23 | 2022-08-19 | 湖南国科微电子股份有限公司 | Image processing method and image processing apparatus |
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| US20040136600A1 (en) * | 1999-08-24 | 2004-07-15 | Yfantis Evangelos A. | Visually lossless still image compression for RGB, YUV, YIQ, YCrCb, K1K2K3 formats |
| CN1964439A (en) * | 2005-11-09 | 2007-05-16 | 上海奇码数字信息有限公司 | Screen display mixing system and method |
| CN101018313A (en) * | 2006-11-20 | 2007-08-15 | 钮旋 | A high-definition digital vidicon directly using the optical fiber image signal transmission |
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2015
- 2015-08-11 CN CN201510490747.4A patent/CN105072487A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040136600A1 (en) * | 1999-08-24 | 2004-07-15 | Yfantis Evangelos A. | Visually lossless still image compression for RGB, YUV, YIQ, YCrCb, K1K2K3 formats |
| CN1964439A (en) * | 2005-11-09 | 2007-05-16 | 上海奇码数字信息有限公司 | Screen display mixing system and method |
| CN101018313A (en) * | 2006-11-20 | 2007-08-15 | 钮旋 | A high-definition digital vidicon directly using the optical fiber image signal transmission |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547893A (en) * | 2016-09-12 | 2018-01-05 | 郑州蓝视科技有限公司 | The video data handling procedure of video monitoring |
| CN110187858A (en) * | 2016-09-28 | 2019-08-30 | 华为技术有限公司 | Image display method and system |
| CN110187858B (en) * | 2016-09-28 | 2022-10-18 | 华为技术有限公司 | Image display method and system |
| CN114928730A (en) * | 2022-06-23 | 2022-08-19 | 湖南国科微电子股份有限公司 | Image processing method and image processing apparatus |
| CN114928730B (en) * | 2022-06-23 | 2023-08-22 | 湖南国科微电子股份有限公司 | Image processing method and image processing apparatus |
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