CN102779504A - Method for realizing video split screen display - Google Patents
Method for realizing video split screen display Download PDFInfo
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- CN102779504A CN102779504A CN2012101529935A CN201210152993A CN102779504A CN 102779504 A CN102779504 A CN 102779504A CN 2012101529935 A CN2012101529935 A CN 2012101529935A CN 201210152993 A CN201210152993 A CN 201210152993A CN 102779504 A CN102779504 A CN 102779504A
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Abstract
The invention discloses a method for realizing video split screen display, which comprises the following steps: obtaining a video; analyzing a lateral resolution and a longitudinal resolution of each image of the video; dividing each image of the video into four video images in the same size according to a horizontal central line and a vertical central line of each image of the video, thereby obtaining four video image blocks corresponding to each image; calling a buffer zone from a memory pool to load the four video image blocks corresponding to each image in the video; respectively outputting the four video image blocks corresponding to each image in the buffer zone to four corresponding display devices; and after completely outputting the four video image blocks corresponding to each image of the video, modifying a numerical value of a reference count of the buffer zone into a numerical value of an original reference count and releasing the modified numerical value into the memory pool again. According to the method disclosed by the invention, the running efficiency of a program and the smoothness of a frame are greatly optimized and the cost is lowered.
Description
Technical field
The present invention relates to field of broadcast televisions, relate in particular to a kind of method that realizes that video separated screen shows.
Background technology
The title of 4k resolution derives from its lateral resolution and is about 4000 pixels, is called the ultra high-definition file again, mainly is meant the raising of resolution.The resolution of high definition file is generally 1920*1080 or 1440*720, and that the resolution of 4K file has is multiple, and common has: 4096 * 2016; 4096*2048; 4096 * 1536,3840 * 2048 etc., the resolution that can see the 4K file is 4 times of high definition file.
4K is the standard of digital movie.Along with the differentiation of technology, the motion picture projection field just from before the film epoch upgrade to the digital movie epoch.The picture of digital movie is more stable, and scene is more steady, and image quality has also had significant lifting.In addition, digitizing means post-production more easily to film, and littler making and transmission cost, and the problem of dtmf distortion DTMF after not worrying repeatedly showing also are more conducive to prevent piracy, so its replacement conventional film film has been trend of the times.
Real 4K digital movie is meant with the 4K digital camera and takes, and 4K numeral intermediate flow process is made, distribution of 4K digital version and the digital movie of showing with the 4K digital projector.Simply from numeral, what the 4K film brought only is the sharpness of 4 times of 2K image quality.But for audience, then can see filament detail section in a subtle way more, see more delicate shadow and color transformed, shade and pixel again can't see, and experience the picture effect of shock more true to nature.
Because the 4K file needs the sharpness of picture higher, so generally being rgb format, pixel representes, rather than the yuv format of high definition.The carrier of 4K file generally is RAW file (claiming a digital egative film again) DPX file.
Because the resolution of 4K file is very big, at present a lot of equipment are not supported to show such resolution, though support on the market that the equipment of 4K resolution occurs; But cost an arm and a leg; In order to reduce cost, make the equipment of original broadcast high definition can continue to use, just need to consider that split screen shows the 4K file.This paper proposes the disposal route that 4 high definition playback equipments of a kind of usefulness are play the 4K file.Play the 4K file like this and just can utilize existing device, reduced cost greatly.
Summary of the invention
The embodiment of the invention provides a kind of method that realizes that video separated screen shows, greatly improves the play quality of video, has improved the operational efficiency of program, has reduced cost.
This method specifically may further comprise the steps:
A kind of method that realizes that video separated screen shows, this method comprises:
Obtain video;
Analyze the lateral resolution and the longitudinal frame of said each image of video, wherein, the lateral resolution of said video data is greater than the longitudinal frame of said video data;
Horizontal center line and vertical center line according to said each image of video are 4 impartial partial video images of size with each image segmentation of said video, obtain 4 corresponding video image blocks of each image;
From memory pool, call buffer zone and carry 4 corresponding video image blocks of all images in the said video, and the numerical value of the reference count of said buffer zone is revised as: on the basis of the numerical value of original reference count, increase by 4;
4 corresponding video image blocks of each image in the said buffer zone are outputed to 4 corresponding display devices respectively, and said 4 display devices show the video image blocks that single image is corresponding simultaneously;
When corresponding 4 video image blocks of all images of said video all after the output, the numerical value of the reference count of said buffer zone is revised as the numerical value of said original reference count, and is released into said memory pool again.
According to technical scheme of the present invention, through video data being divided into 4 impartial partial video data, and adopt the mode of optimizing internal memory to display the play.Greatly optimize the operational efficiency of program and the fluency of picture, reduced cost.
Description of drawings
Technical scheme for the clearer explanation embodiment of the invention; The accompanying drawing of required use is done simple the introduction in will describing embodiment below; Conspicuous, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of process flow diagram of realizing the method that video separated screen shows that Fig. 1 is provided for the embodiment of the invention one;
Fig. 2 is provided for the embodiment of the invention two a kind of process flow diagram of realizing revising in the method that video separated screen shows the video data attribute.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, complete description; Obvious described embodiment only is a part of embodiment of the present invention, is not whole embodiment, based on the embodiment among the present invention; Those of ordinary skills are not paying the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
A kind of process flow diagram of realizing the method that video separated screen shows that Fig. 1 is provided for the embodiment of the invention one.
Of Fig. 1, this method may further comprise the steps:
The lateral resolution and the longitudinal frame of step 102, said each image of video of analysis, wherein, the lateral resolution of said video data is greater than the longitudinal frame of said video data.
Preferably, the lateral resolution of said video image is not that the lateral resolution of image is done qualification more than or equal to 4000 pixels here; But do improvement to technology of the prior art, at present a lot of equipment are not supported to show such resolution, though support on the market that the equipment of 4K resolution occurs; But cost an arm and a leg,, make the equipment of original broadcast high definition can continue to use in order to reduce cost; Therefore, image is cut apart, output shows again.Another is convenient, also can adopt this programme to operate to the video image lateral resolution less than the video of 4000 pixels, and method is similar, repeats no more.
The said buffer zone that from memory pool, calls comprises before carrying 4 corresponding video image blocks of all images in the said video: the numerical value of in memory pool, searching original reference count is smaller or equal to 1, and capacity is greater than the buffer zone of 4 corresponding video image blocks of all images in the said video.Said memory pool comprises: several buffer zones, and the corresponding reference count of each buffer zone, the reference count numerical value of current buffer zone is corresponding with the number of occupied application program.
Based on the COM principle, each buffer zone all has a reference count in the storage pool, and being used for representation program has what local using this buffer zone; When the reference count of buffer zone is 1; Show that this buffer zone is used by program, this moment, this buffer zone will be got back in the storage pool, when program during to storage pool application buffer zone; The reference count of buffer zone will increase; What local these buffer zones that use are arranged, and the reference count of buffer zone will increase what, i.e. it is individual how many places that the reference count of buffer zone has represented to use this buffer zone has.
According to the embodiment of the present invention, through video data being divided into 4 impartial partial video data, and adopt the mode of optimizing internal memory to display the play.Greatly optimize the operational efficiency of program and the fluency of picture, reduced cost.
Embodiment two
Fig. 2 is provided for the embodiment of the invention two a kind of process flow diagram of realizing revising in the method that video separated screen shows the video data attribute.
Of Fig. 2, this method may further comprise the steps:
According to the attribute of said buffer zone, revise the attribute of 4 corresponding video image blocks of all images of said video, and specifically comprise:
The buffer pointer of step 2021, modification upper left corner video data is pLeft=pSum;
The buffer pointer of step 2022, modification upper right corner video data is pRightUp=pSum+SumWidth/2;
The buffer pointer of step 2023, modification lower left corner video data is pLeftDown=pSum+SumWidth* SumHeight/2;
The buffer pointer of step 2024, modification upper right corner video data is pRightDown=pLeftDown+SumWidth/2.
Wherein, having identical attribute in 4 video image blocks that all images of said video is corresponding is:
LeftUpPitch=RightUpPitch=?LeftDownPitch=RightDownPitch=?SumWidth；
LeftUpWidth=RightUpWidth=LeftDownWidth=RightDownWidth=SumWidth/2；
LeftUpHeight=RightUpHeight=LeftDownHeight=RightDownHeight=SumHeight/2。
According to the embodiment of the present invention, the attribute of 4 video image blocks that all images through revising said video is corresponding makes that corresponding 4 video image blocks of all images of said video can public same buffer zone when output; The operational efficiency of program reduces when having avoided memory copying; Even causing not in real time, it is not smooth that picture is play, and improved the travelling speed of program; Optimize the operational efficiency of program and the fluency of picture, reduced cost.
Through the description of above embodiment, those skilled in the art can be well understood to the present invention and can realize through software, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding; Technical scheme of the present invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above is merely specific embodiment of the present invention, but characteristic of the present invention is not limited thereto, and any people who is familiar with this technology is in field of the present invention, and the variation that can expect easily or modification all should be encompassed in the following claim of the present invention.
Claims (7)
1. method that realizes that video separated screen shows is characterized in that this method comprises:
Obtain video;
Analyze the lateral resolution and the longitudinal frame of said each image of video, wherein, the lateral resolution of said video data is greater than the longitudinal frame of said video data;
Horizontal center line and vertical center line according to said each image of video are 4 impartial partial video images of size with each image segmentation of said video, obtain 4 corresponding video image blocks of each image;
From memory pool, call buffer zone and carry 4 corresponding video image blocks of all images in the said video, and the numerical value of the reference count of said buffer zone is revised as: on the basis of the numerical value of original reference count, increase by 4;
4 corresponding video image blocks of each image in the said buffer zone are outputed to 4 corresponding display devices respectively, and said 4 display devices show the video image blocks that single image is corresponding simultaneously;
When corresponding 4 video image blocks of all images of said video all after the output, the numerical value of the reference count of said buffer zone is revised as the numerical value of said original reference count, and is released into said memory pool again.
2. according to the said method of claim 1, it is characterized in that the lateral resolution of said video image is more than or equal to 4000 pixels.
3. according to the said method of claim 1, it is characterized in that the said buffer zone that from memory pool, calls comprises before carrying 4 corresponding video image blocks of all images in the said video:
The numerical value of in memory pool, searching original reference count is smaller or equal to 1, and capacity is greater than the buffer zone of 4 corresponding video image blocks of all images in the said video.
4. according to claim 1 or 3 said methods, it is characterized in that said memory pool comprises: several buffer zones.
5. according to claim 1 or 3 described methods, it is characterized in that said reference count numerical value comprises:
The corresponding reference count of each buffer zone, reference count numerical value is 1 to current buffer zone if do not taken then by program, when being taken by other programs, said reference count numerical value then increases accordingly.
6. method according to claim 1 is characterized in that, said 4 video image blocks with each image correspondence in the said buffer zone also comprise before outputing to 4 corresponding display devices respectively:
Obtain the attribute of said buffer zone, and specifically comprise: obtain the said buffer pointer pSum that finds, width S umWidth and height SumHeight.
7. method according to claim 6 is characterized in that, the said attribute that obtains said buffer zone comprises afterwards:
According to the attribute of the said buffer zone that finds, revise the attribute of 4 corresponding video image blocks of all images of said video, and specifically comprise:
The buffer pointer of revising upper left corner video data is pLeft=pSum;
The buffer pointer of revising upper right corner video data is pRightUp=pSum+SumWidth/2;
The buffer pointer of revising lower left corner video data is pLeftDown=pSum+SumWidth* SumHeight/2; ;
The buffer pointer of revising upper right corner video data is pRightDown=pLeftDown+SumWidth/2.
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| CN2012101529935A CN102779504A (en) | 2012-05-16 | 2012-05-16 | Method for realizing video split screen display |
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| CN2012101529935A CN102779504A (en) | 2012-05-16 | 2012-05-16 | Method for realizing video split screen display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111314650A (en) * | 2018-12-11 | 2020-06-19 | 浙江宇视科技有限公司 | Image display method and device |
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| CN1489112A (en) * | 2002-10-10 | 2004-04-14 | 北京中星微电子有限公司 | Sports image detecting method |
| CN101000755A (en) * | 2006-12-21 | 2007-07-18 | 康佳集团股份有限公司 | Multi-screen display splicing controller |
| CN101026716A (en) * | 2007-01-04 | 2007-08-29 | 广东响石数码科技有限公司 | Method for configuring high resolution spliced television curtain wall |
| JP2010049684A (en) * | 2008-08-19 | 2010-03-04 | Wistron Corp | Method for displaying split screen on display and electronic device |
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2012
- 2012-05-16 CN CN2012101529935A patent/CN102779504A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489112A (en) * | 2002-10-10 | 2004-04-14 | 北京中星微电子有限公司 | Sports image detecting method |
| CN101000755A (en) * | 2006-12-21 | 2007-07-18 | 康佳集团股份有限公司 | Multi-screen display splicing controller |
| CN101026716A (en) * | 2007-01-04 | 2007-08-29 | 广东响石数码科技有限公司 | Method for configuring high resolution spliced television curtain wall |
| JP2010049684A (en) * | 2008-08-19 | 2010-03-04 | Wistron Corp | Method for displaying split screen on display and electronic device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111314650A (en) * | 2018-12-11 | 2020-06-19 | 浙江宇视科技有限公司 | Image display method and device |
| CN111314650B (en) * | 2018-12-11 | 2021-04-20 | 浙江宇视科技有限公司 | Image display method and device |
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