CN105744275A - Video data input method, video data output method, video data input device and video data output device - Google Patents
Video data input method, video data output method, video data input device and video data output device Download PDFInfo
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- H—ELECTRICITY
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
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- H—ELECTRICITY
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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Abstract
The embodiment of the invention provides a video data input method comprising the following steps: acquiring to-be-processed video frame data; segmenting the to-be-processed video frame data into a plurality of independent to-be-compressed blocks, and numbering the to-be-compressed blocks; scanning each to-be-compressed block according to the serial number, grouping pixel points in each to-be-compressed block while scanning each to-be-compressed block, thereby obtaining groups with different priorities; setting compression ratios for the to-be-compressed blocks; for the pixel points of different groups in one to-be-compressed block, orderly performing compression with the corresponding compression ratio according to a descending order of the priorities of the groups to generate a compressed code stream; and inputting the compressed code stream, the serial number of the to-be-compressed block corresponding to the compressed code stream and the compression ratio of the to-be-compressed block corresponding to the compressed code stream into a compressed code stream cache. In the embodiment of the invention, when decompressing the compressed code stream generated through compression, decompression is carried out according to the pixel points in the same to-be-compressed block, and thus, random access to the to-be-compressed blocks is realized.
Description
Present patent application is the applying date, and to be on January 7th, 2016, application number be 2016100084326, name is called the divisional application of Chinese invention patent application of " a kind of video data handling procedure and device ".
Technical field
The application relates to video technique field, particularly relates to a kind of video data input method, a kind of video data output intent, a kind of video data input equipment and a kind of video data outputting.
Background technology
In recent years, the subjective demand of high-quality visual enjoyment and the objective condition of semiconductor technology fast development have been collectively promoted the flourish of ultra high-definition television industries by people.But, due to the restriction of current transmission system bandwidth, ultra high-definition TV programme can only with relatively low frame per second transmission.Meanwhile, the refresh rate of large-screen display equipment has again bigger lifting, and video frame rate is lower than screen refresh rate, and this mismatch directly results in image and smear, pause, the phenomenon such as fuzzy occurs, and display effect is not good.Video frame rate upconversion technology is as important Video post-processing means, it is possible to the effective frame per second promoting display video, the display screen at high refresh rate lifts up the subjective quality of hi-vision.
The input of ultra high-definition video frame rate upconversion system is the image sequence of one group of fixing frame per second, and after range of motion estimation, vector post processing and interpolating operations, its output is the image sequence of one group of higher frame per second.
It is multiple to be compressed piece by a two field picture cutting that the ultra high-definition video frame rate upconversion of ultra high-definition video frame rate upconversion system processes kernel, in motion estimation operation, it is necessary to obtain to be compressed piece that in a two field picture one to be compressed piece and reference frame image are mated and estimate motion vector.But owing to, in current infra-frame prediction, to be compressed piece needs to rely on to be compressed piece around and generates, and the error between to be compressed piece will be transmitted, and this will make motion vector error bigger.
Summary of the invention
In view of the above problems, it is proposed that the embodiment of the present application is to provide a kind of and overcome the problems referred to above or solve a kind of video data input method of the problems referred to above, a kind of video data output intent, a kind of video data input equipment and a kind of video data outputting at least in part.
In order to solve the problems referred to above, the embodiment of the present application discloses a kind of video data input method, is applied to ultra high-definition video frame rate upconversion system, and described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described method includes:
Pending video requency frame data is obtained from described video data input module；
It is multiple independent to be compressed piece by described pending video requency frame data cutting, and each to be compressed piece is numbered；
According to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
To each to be compressed piece, compression ratio is set；
To the pixel of different grouping in be compressed piece, adopt corresponding compression ratio, according to the priority orders of each packet from high to low, be sequentially carried out compression and process, generate compressed bit stream；
By described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
Preferably, described each to be compressed piece of step being numbered is included:
According to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
Preferably, described each step of to be compressed piece according to numbering scanning includes:
According to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Or, according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
Preferably, the pixel in this to be compressed piece is just carried out packet transaction by described often scanning one to be compressed piece, it is thus achieved that the step of the packet of different priorities includes:
Determine the pixel region to be split in be compressed piece；
It is two sub regions by described pixel region even partition to be split；
For each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
The priority of each pixel is generated according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
Meanwhile, disclosed herein as well is a kind of video data output intent, be applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described method includes:
Receive described ultra high-definition video frame rate upconversion and process the block of pixels acquisition request that kernel is submitted to；
Receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
Adopt the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generate block of pixels after decompressing；
Numbering corresponding to block of pixels after described decompression and compressed bit stream is exported described ultra high-definition video frame rate upconversion and processes kernel.
Meanwhile, disclosed herein as well is a kind of video data input equipment, be applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described device includes:
Acquisition module, for obtaining pending video requency frame data from described video data input module；
Cutting numbering module, for being multiple independent to be compressed piece by described pending video requency frame data cutting, and is numbered each to be compressed piece；
Scanning grouping module, for according to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
Compression ratio arranges module, for arranging compression ratio to each to be compressed piece；
Compression module, for the pixel of different grouping in be compressed piece, adopting corresponding compression ratio, according to the priority orders of each packet from high to low, is sequentially carried out compression and processes, generate compressed bit stream；
Input module, for by described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
Preferably, described cutting numbering module farther includes:
Ranks value numbering submodule, for according to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
Preferably, described scanning grouping module farther includes:
First alternate sweep submodule, for according to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Or,
Second alternate sweep submodule, for according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
Preferably, described scanning grouping module farther includes:
Submodule is determined in region, for determining the pixel region to be split in be compressed piece；
First segmentation submodule, being used for described pixel region even partition to be split is two sub regions；
Second segmentation submodule, for for each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
Priority generates submodule, for generating the priority of each pixel according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
Meanwhile, disclosed herein as well is a kind of video data outputting, be applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described device includes:
Receiver module, processes, for receiving described ultra high-definition video frame rate upconversion, the block of pixels acquisition request that kernel is submitted to；
Request module, for receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
Decompression module, for adopting the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generates block of pixels after decompressing；
Output module, processes kernel for numbering corresponding to block of pixels after described decompression and compressed bit stream exports described ultra high-definition video frame rate upconversion.
The embodiment of the present application includes advantages below:
The embodiment of the present application is by processing in compression, pixel in same to be compressed piece is divided into the packet of different priorities, in to be compressed piece, the pixel of different grouping is compressed processing according to the packet that to be compressed piece of medium priority is higher, make when decompressing compression and processing the compressed bit stream generated, only need to decompress according to the pixel of same to be compressed piece of inside, decompress without according to other to be compressed piece, realize to be compressed piece can be accessed randomly, the transmission of error between reducing to be compressed piece, reduces the error generating motion vector in estimation.Meanwhile, treat compression blocks and be numbered, when compression, different compression ratios can be set to each to be compressed piece, and the numbering according to be compressed piece is indexed, make when decompression, it is possible to determine the compression ratio of correspondence according to numbering, select the decompression mode of coupling according to compression ratio.Realize selecting compression ratio flexibly.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of a kind of video data input method embodiment of the application；
Fig. 2 is the schematic diagram that the video requency frame data of YCbCr4:2:2 sample format carries out in the embodiment of the present application cutting；
Fig. 3 is the schematic diagram that the video requency frame data of YCbCr4:4:4 sample format carries out in the embodiment of the present application cutting；
Fig. 4 is the schematic diagram that the video requency frame data of YCbCr4:2:0 sample format carries out in the embodiment of the present application cutting；
Fig. 5 is the flow chart of steps of a kind of video data output intent embodiment of the application；
Fig. 6 is the structured flowchart of a kind of video data input equipment embodiment of the application；
Fig. 7 is the structured flowchart of a kind of video data outputting embodiment of the application.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the application, feature and advantage to become apparent from, below in conjunction with the drawings and specific embodiments, the application is described in further detail.
One of core idea of the embodiment of the present application is in that, it it is multiple to be compressed piece by video requency frame data cutting, pixel in one to be compressed piece is divided into the packet of different priorities, in to be compressed piece, the pixel of different grouping is compressed processing according to the packet that to be compressed piece of medium priority is higher, simultaneously, treat compression blocks to be numbered, when compression, different compression ratios can be set to each to be compressed piece, and the numbering according to be compressed piece is indexed.
With reference to Fig. 1, illustrate the flow chart of steps of a kind of video data input method embodiment of the application, described method is applied to ultra high-definition video frame rate upconversion system, and described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described method specifically may include steps of:
Step 101, obtains pending video requency frame data from described video data input module；
Obtain from video data input module and need the video requency frame data carrying out ultra high-definition video frame rate upconversion process.
Step 102, is multiple independent to be compressed piece by described pending video requency frame data cutting, and is numbered each to be compressed piece；
Being multiple independent to be compressed piece by pending video requency frame data cutting, wherein, to be compressed piece may include that to be compressed piece of brightness and to be compressed piece of colourity.
The unique numbering conduct mark of each to be compressed piece distribution one for same video requency frame data.
Step 103, according to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
Order according to numbering, scans each to be compressed piece, often scans through one to be compressed piece and just the pixel in this to be compressed piece is carried out packet transaction, it is thus achieved that the packet of different priorities.
Step 104, arranges compression ratio to each to be compressed piece；
Fixing compression ratio is being set to each to be compressed piece, identical compression ratio can be set between to be compressed piece, it is also possible to arranges different compression ratios.
Step 105, to the pixel of different grouping in be compressed piece, adopts corresponding compression ratio, according to the priority orders of each packet from high to low, is sequentially carried out compression and processes, generate compressed bit stream；
To the pixel of different grouping in be compressed piece, adopt in step 104 and be compressed processing for the to be compressed piece of compression ratio arranged, first the pixel of the high packet of priority is compressed compression to process, again the pixel of the low packet of priority is compressed compression to process so that the compressed bit stream of generation meets set compression ratio.
After the compressed process of pixel of each packet, generating a subcode stream, being undertaken packing by the subcode stream of each packet obtains the to be compressed piece of compressed bit stream being compressed.
Step 106, by described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
By compressed bit stream, generate the numbering of to be compressed piece of this compressed bit stream, and, generate the compression ratio of to be compressed piece of this compressed bit stream, it is input in compressed bit stream buffer memory and stores, so that when decompressing, the compression ratio of correspondence can be determined according to corresponding numbering, select the decompression mode of coupling according to compression ratio.
In the embodiment of the present application, the to be compressed piece of pixel having only to according to therein carries out decompressing generating, and decompresses without according to other to be compressed piece.Make to be compressed piece can be accessed randomly, reduce the transmission of error between to be compressed piece, reduce the error generating motion vector in estimation.Meanwhile, treat compression blocks and be numbered, when compression, different compression ratios can be set to each to be compressed piece, and the numbering according to be compressed piece is indexed, make when decompression, it is possible to determine the compression ratio of correspondence according to numbering, select the decompression mode of coupling according to compression ratio.Realize selecting compression ratio flexibly.
As a kind of preferred exemplary of the embodiment of the present application, described step 102 specifically can include following sub-step:
Sub-step S11, according to the sample mode of video requency frame data, is to be compressed piece of multiple independent brightness and to be compressed piece of multiple independent colourities by described pending video requency frame data cutting.
It is to be compressed piece of multiple independent brightness and to be compressed piece of multiple independent colourities by pending video requency frame data cutting, and to be compressed piece of each brightness and to be compressed piece of colourity are numbered.
The size of to be compressed piece specifically can be arranged according to the mode of ultra high-definition video frame rate upconversion process kernel reading data, in implementing, when ultra high-definition video frame rate upconversion process kernel fetches data each time, read 64 pixels of a line in video requency frame data, it can be considered to pending data block is arranged to the matrix of multiple 64 × N, line number N can be adjusted according to actual compression effect.
Difference according to video requency frame data sample mode, it is possible to video requency frame data is cut into be compressed piece of multiple independent brightness and to be compressed piece of colourity, and the sampling of conventional video requency frame data includes: YCbCr4:2:2, YCbCr4:4:4, YCbCr4:2:0.YCbCr is the part in world's numeral tissue video standard development process as ITU-RBT.601 suggestion, and wherein Y refers to that luminance component, Cb refer to chroma blue component, and Cr refers to red chrominance component；4:2:0 represents that every 4 pixels have 4 luminance components, 2 chromatic components (YYYYCbCr), odd-numbered scan lines of only sampling, and is portable video apparatus (MPEG-4) and video conference (H.263) the most frequently used form；4:2:2 represents that every 4 pixels have 4 luminance components, and 4 chromatic components (YYYYCbCrCbCr) are the most frequently used forms of DVD, DTV, HDTV and other consumer video equipment；4:4:4 represents both full-pixel dot matrix (YYYYCbCrCbCrCbCrCbCr), for high-quality video application, studio and professional video production.
It it is the schematic diagram that in the embodiment of the present application, the video requency frame data of YCbCr4:2:2 sample format is carried out cutting with reference to Fig. 2；Wherein, by the luminance component of 64 pixels of two row continuous in video requency frame data, as to be compressed piece of 64 × 2 matrixes, by 32 × 2 corresponding for pixel Cb components, 32 × 2 Cr components are together as to be compressed piece of 64 × 2 matrixes.
It it is the schematic diagram that in the embodiment of the present application, the video requency frame data of YCbCr4:4:4 sample format is carried out cutting with reference to Fig. 3；Wherein, luminance component by 64 pixels of two row continuous in video requency frame data, as 64 × 2 matrixes to be compressed piece, using as 64 × 2 matrixes to be compressed piece of 64 × 2 corresponding for pixel Cb components, 64 × 2 Cr components pixel correspondence sent out are as to be compressed piece of 64 × 2 matrixes.
It it is the schematic diagram that in the embodiment of the present application, the video requency frame data of YCbCr4:2:0 sample format is carried out cutting with reference to Fig. 4；Wherein, by the luminance component of 64 pixels of four row continuous in video requency frame data, as to be compressed piece of two each and every one 64 × 2 matrixes, by 32 × 2 corresponding for pixel Cb components, 32 × 2 Cr components are together as to be compressed piece of 64 × 2 matrixes.
After a video requency frame data cutting is multiple to be compressed piece, each to be compressed piece of same video requency frame data is numbered；As a kind of preferred exemplary of the embodiment of the present application, described step 103 specifically can include following sub-step:
Sub-step S21, according to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
Concrete, it is assumed that a video requency frame data includes: 3840 × 2160 pixels；Each be 64 × 2 form, the sample mode of video requency frame data is: YCbCr4:2:2.To be compressed piece of to be compressed piece and 64800 colourities of 60 × 1080=64800 brightness, 129600 block of pixels altogether can be obtained.
Matrix format could be arranged to 60 × 2160,120 × 1080, the forms such as 240 × 540, as long as ensureing that the ranks value of matrix is multiplied for the summation of to be compressed piece.
For the ranks value of each to be compressed piece of allocation matrix as the numbering of to be compressed piece.Then according to numbering scanning each to be compressed piece, as a kind of preferred exemplary of the embodiment of the present application, described step 104 specifically can include following sub-step according to numbering scanning each step of to be compressed piece described:
Sub-step S31, according to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Can according to the ranks value of to be compressed piece, from one that row matrix train value is minimum to be compressed piece, by from left to right, the mode replaced line by line from right to left is scanned；
Sub-step S32, or, according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
Can also according to the ranks value of to be compressed piece, from one that row matrix train value is minimum to be compressed piece, by from down to, mode alternately is scanned by column from bottom to up；
Often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities.
As a kind of preferred exemplary of the embodiment of the present application, treat the pixel in compression blocks and carry out the step of packet transaction and specifically can include following sub-step:
Sub-step S41, it is determined that the pixel region to be split in be compressed piece；
First to be compressed piece is divided into multiple pixel region to be split；Choosing of pixel region to be split can be chosen according to luminance component therein, chromatic component；
Sub-step S42, is two sub regions by described pixel region even partition to be split；
Each pixel region even partition to be split is two sub regions, and when in pixel region to be split, the pixel number of each row is even number number, the pixel of two sub regions is equal；When in pixel region to be split, the pixel number of each row is odd number number, the pixel of one of them subregion each row is than the pixel one more or less of another subregion each row；
Sub-step S43, for each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
Iteration even partition subregion, until undivided pixel with the interval of pixel split less than or equal to 1 time, stop splitting；
Sub-step S44, generates the priority of each pixel according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
The to be compressed piece of pixel being divided into pixel region to be split will be made, as first packet with limit priority；
The to be split pixel that pixel region segmentation is two sub regions being made up of the pixel of the first packet will be made, as second packet with the second priority；
Formed subregion by making be divided into the pixel of two sub regions by the pixel of the second packet, as the 3rd packet with third priority；
……
Until the pixel split has distributed priority, then to undivided pixel allocation priority.
After being grouped, to the pixel of different grouping in be compressed piece, according to the priority orders of packet from high to low, it is sequentially carried out compression and processes.
Concrete, the pixel for the highest packet of priority can pass through the figure place intercepting default value high-order in the original pixel value of pixel as compress mode；The pixel of non-limit priority packet needs the compression result of the pixel according to priority packet formerly that self is compressed.
With reference to Fig. 5, illustrate the flow chart of steps of a kind of video data output intent embodiment of the application, described method is applied to ultra high-definition video frame rate upconversion system, and described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described method specifically may include steps of:
Step 201, receives described ultra high-definition video frame rate upconversion and processes the block of pixels acquisition request that kernel is submitted to；
When ultra high-definition video frame rate upconversion process kernel needs acquisition video requency frame data to carry out up-conversion process, obtain request to system pixel block.
Step 202, receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
System gets ultra high-definition video frame rate upconversion and processes after the block of pixels of kernel obtains request, to compressed bit stream cache request compressed bit stream, and the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding.
Step 203, adopts the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generates block of pixels after decompressing；
Adopt the compressed bit stream that different compression ratio generates, it is necessary to adopt the decompression mode with corresponding compression ratio coupling to carry out decompression processing.
Step 204, exports numbering corresponding to block of pixels after described decompression and compressed bit stream described ultra high-definition video frame rate upconversion and processes kernel.
Numbering (numbering with compression blocks that namely compressed bit stream is corresponding) output corresponding to block of pixels after decompression and compressed bit stream is processed kernel to ultra high-definition video frame rate upconversion.In subsequent treatment, it is possible to each block of pixels is combined as a frame video requency frame data according to corresponding numbering.
It should be noted that, for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the embodiment of the present application is not by the restriction of described sequence of movement, because according to the embodiment of the present application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, embodiment described in this description belongs to preferred embodiment, necessary to involved action not necessarily the embodiment of the present application.
With reference to Fig. 6, illustrate the structured flowchart of a kind of video data input equipment embodiment of the application, described device is applied to ultra high-definition video frame rate upconversion system, and described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described device specifically can include such as lower module:
Acquisition module 31, for obtaining pending video requency frame data from described video data input module；
Cutting numbering module 32, for being multiple independent to be compressed piece by described pending video requency frame data cutting, and is numbered each to be compressed piece；
Scanning grouping module 33, for according to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
Compression ratio arranges module 34, for arranging compression ratio to each to be compressed piece；
Compression module 35, for the pixel of different grouping in be compressed piece, adopting corresponding compression ratio, according to the priority orders of each packet from high to low, is sequentially carried out compression and processes, generate compressed bit stream；
Input module 36, for by described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
As a kind of preferred exemplary of the embodiment of the present application, described cutting numbering module 32 may further include:
Ranks value numbering submodule, for according to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
As a kind of preferred exemplary of the embodiment of the present application, described scanning grouping module 33 may further include:
First alternate sweep submodule, for according to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Or,
Second alternate sweep submodule, for according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
As a kind of preferred exemplary of the embodiment of the present application, described scanning grouping module 33 may further include:
Submodule is determined in region, for determining the pixel region to be split in be compressed piece；
First segmentation submodule, being used for described pixel region even partition to be split is two sub regions；
Second segmentation submodule, for for each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
Priority generates submodule, for generating the priority of each pixel according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
With reference to Fig. 7, illustrate the structured flowchart of a kind of video data outputting embodiment of the application, described device is applied to ultra high-definition video frame rate upconversion system, and described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described device specifically can include such as lower module:
Receiver module 41, processes, for receiving described ultra high-definition video frame rate upconversion, the block of pixels acquisition request that kernel is submitted to；
Request module 42, for receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
Decompression module 43, for adopting the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generates block of pixels after decompressing；
Output module 44, processes kernel for numbering corresponding to block of pixels after described decompression and compressed bit stream exports described ultra high-definition video frame rate upconversion.
For device embodiment, due to itself and embodiment of the method basic simlarity, so what describe is fairly simple, relevant part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually referring to.
Those skilled in the art are it should be appreciated that the embodiment of the embodiment of the present application can be provided as method, device or computer program.Therefore, the embodiment of the present application can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect.And, the embodiment of the present application can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The embodiment of the present application is to describe with reference to flow chart and/or the block diagram according to the method for the embodiment of the present application, terminal unit (system) and computer program.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminal equipment so that the instruction performed by the processor of computer or other programmable data processing terminal equipment is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing terminal equipment work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing terminal equipment, make on computer or other programmable terminal equipment, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable terminal equipment provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although having been described for the preferred embodiment of the embodiment of the present application, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the embodiment of the present application scope.
Finally, it can further be stated that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or terminal unit not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or terminal unit.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or terminal unit.
Above to a kind of video data input method provided herein, a kind of video data output intent, a kind of video data input equipment and a kind of video data outputting, it is described in detail, principle and the embodiment of the application are set forth by specific case used herein, and the explanation of above example is only intended to help and understands the present processes and core concept thereof；Simultaneously for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this specification content should not be construed as the restriction to the application.
Claims (10)
1. a video data input method, it is characterised in that being applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described method includes:
Pending video requency frame data is obtained from described video data input module；
It is multiple independent to be compressed piece by described pending video requency frame data cutting, and each to be compressed piece is numbered；
According to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
To each to be compressed piece, compression ratio is set；
To the pixel of different grouping in be compressed piece, adopt corresponding compression ratio, according to the priority orders of each packet from high to low, be sequentially carried out compression and process, generate compressed bit stream；
By described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
2. method according to claim 1, it is characterised in that described each to be compressed piece of step being numbered is included:
According to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
3. method according to claim 2, it is characterised in that described each step of to be compressed piece according to numbering scanning includes:
According to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Or, according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
4. the method according to claim 1 or 2 or 3, it is characterised in that the pixel in this to be compressed piece is just carried out packet transaction by described often scanning one to be compressed piece, it is thus achieved that the step of the packet of different priorities includes:
Determine the pixel region to be split in be compressed piece；
It is two sub regions by described pixel region even partition to be split；
For each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
The priority of each pixel is generated according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
5. a video data output intent, it is characterised in that being applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described method includes:
Receive described ultra high-definition video frame rate upconversion and process the block of pixels acquisition request that kernel is submitted to；
Receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
Adopt the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generate block of pixels after decompressing；
Numbering corresponding to block of pixels after described decompression and compressed bit stream is exported described ultra high-definition video frame rate upconversion and processes kernel.
6. a video data input equipment, it is characterised in that being applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: video data input module and compressed bit stream buffer memory；Described device includes:
Acquisition module, for obtaining pending video requency frame data from described video data input module；
Cutting numbering module, for being multiple independent to be compressed piece by described pending video requency frame data cutting, and is numbered each to be compressed piece；
Scanning grouping module, for according to described each to be compressed piece of numbering scanning, often the pixel in this to be compressed piece is just carried out packet transaction by scanning one to be compressed piece, it is thus achieved that the packet of different priorities；
Compression ratio arranges module, for arranging compression ratio to each to be compressed piece；
Compression module, for the pixel of different grouping in be compressed piece, adopting corresponding compression ratio, according to the priority orders of each packet from high to low, is sequentially carried out compression and processes, generate compressed bit stream；
Input module, for by described compressed bit stream, the numbering of to be compressed piece corresponding with compressed bit stream, and, the compression ratio of to be compressed piece corresponding with compressed bit stream, it is input to described compressed bit stream buffer memory.
7. device according to claim 6, it is characterised in that described cutting numbering module farther includes:
Ranks value numbering submodule, for according to default matrix format, to each the to be compressed piece of alllocated lines train value generated by same video requency frame data cutting as numbering.
8. device according to claim 7, it is characterised in that described scanning grouping module farther includes:
First alternate sweep submodule, for according to the ranks value of to be compressed piece, from left to right, to be compressed piece of alternate sweep line by line from right to left；
Or,
Second alternate sweep submodule, for according to the ranks value of to be compressed piece, from down to, to be compressed piece of alternate sweep by column from bottom to up.
9. the device according to claim 6 or 7 or 8, it is characterised in that described scanning grouping module farther includes:
Submodule is determined in region, for determining the pixel region to be split in be compressed piece；
First segmentation submodule, being used for described pixel region even partition to be split is two sub regions；
Second segmentation submodule, for for each sub regions iteration even partition, until when the interval of undivided pixel and the pixel split is less than or equal to 1, stopping splitting；
Priority generates submodule, for generating the priority of each pixel according to the result split successively；Wherein, the prioritization of undivided pixel is after the priority of the pixel split.
10. a video data outputting, it is characterised in that being applied to ultra high-definition video frame rate upconversion system, described ultra high-definition video frame rate upconversion system includes: ultra high-definition video frame rate upconversion processes kernel and compressed bit stream buffer memory；Described device includes:
Receiver module, processes, for receiving described ultra high-definition video frame rate upconversion, the block of pixels acquisition request that kernel is submitted to；
Request module, for receiving after described block of pixels obtains request, to described compressed bit stream cache request compressed bit stream, the numbering that compressed bit stream is corresponding, and, the compression ratio that compressed bit stream is corresponding；
Decompression module, for adopting the decompression mode with described corresponding compression ratio coupling that described compressed bit stream is carried out decompression processing, generates block of pixels after decompressing；
Output module, processes kernel for numbering corresponding to block of pixels after described decompression and compressed bit stream exports described ultra high-definition video frame rate upconversion.
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