CN105430414A - Inter-frame prediction decoding method and device - Google Patents
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Abstract
The invention discloses an inter-frame prediction decoding method and device. The device comprises a decoding mode configuration unit, a decoding control unit, an MVD computing unit, a colmv data acquisition unit, a reference block pre-acquisition unit, a block acquisition unit, a movement compensation unit, a memory unit and a bus unit. According to the method and the device, the current decoding mode of the device is configured, and related analysis is conducted on code stream data according to a protocol corresponding to the configured decoding mode, so that the technical scheme in which one type of hardware architecture can be compatible with three protocols of HEVC, H264 and VP9 for analyzing the code stream data is realized, and the hardware reuse rate is high. Therefore, area for hardware design is greatly reduced, the power consumption as well as the hardware cost is reduced, and the method and the device have wide market prospects in the field of computer chips.
Description
Technical field
The present invention relates to computer chip field, particularly relate to a kind of interframe prediction decoding method and apparatus.
Background technology
Along with the development of science and technology, the video decode of high definition or even ultra high-definition more and more obtains general application, and the code check that the video of high resolution requires usually is higher, thus Video Decoder Design becomes in Video Decoder Design the problem needing special concern efficiently.And the inter prediction requisite ring that is video decode.
H264, VP9 and HEVC are the video coding and decoding technology of current main flow, and because these 3 kinds of decoding techniques are respectively based on three kinds of different agreements, the decoder that thus these 3 kinds of decoding techniques are corresponding is all separately design.That is, need employing 3 to overlap decoder hardware circuitry and just can resolve the bit stream data of 3 kinds of different agreements respectively, cause consuming the problems such as hardware area is large, hardware cost is high, power consumption is large.
Summary of the invention
For this reason, need to provide a kind of can the hardware decode framework of compatible H264, VP9 and HEVC, need to design different hardware decode frameworks in order to the decoding technique solved for different agreement, cause the problems such as hardware area is large, hardware cost is high, power consumption is large.
For achieving the above object, inventor provide a kind of interframe prediction decoding device, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, get module unit, motion compensation units, memory cell and bus unit, described MVD computing unit comprises control command parsing module and MV computing module, described reference block pre-fetch unit comprises gets block message computing module and operation information computing module, described decoding control unit is connected with MVD computing unit, described MVD computing unit is connected with colmv data capture unit, described colmv data capture unit is connected with bus unit, described MVD computing unit is connected with reference block pre-fetch unit, described reference block pre-fetch unit with get module unit and be connected, described module unit of getting is connected with memory cell, and described reference block pre-fetch unit is connected with motion compensation units, described in get module unit and be connected with motion compensation units,
Described decoding schema dispensing unit is for configuring the decoding schema of current described device, and described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern;
Described decoding control unit is for sending decoding control command to MVD computing unit, described control command parsing module is used for resolving obtained control command, and described colmv data capture unit is used for the control command after according to parsing and obtains colmv data from described bus unit;
Described MV computing unit is used for carrying out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit;
Described block message computing module of getting is for carrying out the second calculating to MV data, and what obtain reference block gets block message;
Described module unit of getting obtains reference block pixel for the block message of getting according to reference block from described memory cell;
Described operation information computing module is used for carrying out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block;
Described motion compensation units is used for carrying out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.
Further, described MVD computing unit also comprises boundary strength value computing module, and described boundary strength value computing module is used for carrying out the 4th calculating to obtained colmv data, obtains the boundary strength value of inter prediction.
Further, described device also comprises filter unit in ring, and the boundary strength value computing module of described device is connected with loop filtering unit, and in described ring, filter unit is for obtaining the boundary strength value of inter prediction, and carries out filtering process in ring.
Further, described device also comprises buffer unit, described buffer unit comprises the first buffer unit and the second buffer unit, and described first buffer unit is used for carrying out buffer memory to decoding control command, and described second buffer unit is used for carrying out buffer memory to the calculation command of reference block.
Further, described memory cell also comprises colmv data storage cell, and described colmv data storage cell is used for storing the colmv data that colmv data capture unit obtains.
Inventor additionally provides a kind of interframe prediction decoding method, described method is applied to interframe prediction decoding device, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, get module unit, motion compensation units, memory cell and bus unit, described MVD computing unit comprises control command parsing module and MV computing module, described reference block pre-fetch unit comprises gets block message computing module and operation information computing module, described decoding control unit is connected with MVD computing unit, described MVD computing unit is connected with colmv data capture unit, described colmv data capture unit is connected with bus unit, described MVD computing unit is connected with reference block pre-fetch unit, described reference block pre-fetch unit with get module unit and be connected, described module unit of getting is connected with memory cell, and described reference block pre-fetch unit is connected with motion compensation units, described in get module unit and be connected with motion compensation units, then said method comprising the steps of:
The decoding schema of the current described device of decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern;
Decoding control unit sends decoding control command to MVD computing unit, and control command parsing module is resolved obtained control command, and colmv data capture unit obtains colmv data according to the control command after parsing from described bus unit;
MV computing unit carries out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit;
Get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message;
Get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block;
Operation information computing module carries out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block;
Motion compensation units carries out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.
Further, described MVD computing unit also comprises boundary strength value computing module, then described method comprises:
The colmv data that boundary strength value computing module obtains carry out the 4th calculating, obtain the boundary strength value of inter prediction.
Further, the boundary strength value computing module of described device is also connected with filter unit in ring, then described method comprises:
In ring, filter unit obtains the boundary strength value of inter prediction, and carries out filtering process in ring.
Further, described device also comprises buffer unit, and described buffer unit comprises the first buffer unit and the second buffer unit, then described method comprises:
First buffer unit carries out buffer memory to decoding control command, and the second buffer unit carries out buffer memory to the calculation command of reference block.
Further, described memory cell also comprises colmv data storage cell, and described method comprises:
Colmv data storage cell stores the colmv data that colmv data capture unit obtains.
Interframe prediction decoding method and apparatus described in technique scheme, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, gets module unit, motion compensation units, memory cell and bus unit.Said method comprising the steps of: the decoding schema of the current described device of decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern.Decoding control unit sends decoding control command to MVD computing unit, and control command parsing module is resolved obtained control command.Colmv data capture unit obtains colmv data according to the control command after parsing from described bus unit.MV computing unit carries out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit; Get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message.Get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block.Operation information computing module carries out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block.Motion compensation units carries out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.The compatible HEVC of above-mentioned hardware structure, H264 and VP9 decoding schema, before the bit stream data of resolving different decoding schema, only need configure the decoding schema of present apparatus, the agreement regulation that then device can be corresponding according to current configured decoding schema carries out related resolution operation to bit stream data, thus achieve a kind of hardware structure compatibility of employing parsing HEVC, H264 and VP9 tri-overlaps the technical scheme of the bit stream data of agreement, hardware multiplexing rate is high, thus area when greatly reducing hardware designs, reduce power consumption, save hardware cost, thus in computer chip field, there are wide market prospects.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the interframe prediction decoding device that an embodiment of the present invention relates to;
Fig. 2 is the flow chart of the interframe prediction decoding device that an embodiment of the present invention relates to;
Description of reference numerals:
101, decoding schema dispensing unit;
102, decoding control unit;
103, MVD computing unit; 113, control command parsing module; 123, MV computing module; 133, boundary strength value computing module;
104, colmv data capture unit;
105, bus unit;
106, filter unit in ring;
107, reference block pre-fetch unit; 117, block message computing module is got; 127, operation information computing module;
108, module unit is got;
109, memory cell;
110, motion compensation units.
Embodiment
By describe in detail technical scheme technology contents, structural feature, realized object and effect, coordinate accompanying drawing to be explained in detail below in conjunction with specific embodiment.
Referring to Fig. 1, is the schematic diagram of the interframe prediction decoding device that an embodiment of the present invention relates to.Described device comprises decoding schema dispensing unit 101, decoding control unit 102, MVD computing unit 103, colmv data capture unit 104, reference block pre-fetch unit 107, get module unit 108, motion compensation units 110, memory cell 109 and bus unit 105, described MVD computing unit 103 comprises control command parsing module 113 and MV computing module 123, described reference block pre-fetch unit 107 comprises gets block message computing module 117 and operation information computing module 127, described decoding control unit 101 is connected with MVD computing unit 103, described MVD computing unit 103 is connected with colmv data capture unit 104, described colmv data capture unit 104 is connected with bus unit 105, described MVD computing unit 103 is connected with reference block pre-fetch unit 107, described reference block pre-fetch unit 107 with get module unit 108 and be connected, described module unit 108 of getting is connected with memory cell 109, described reference block pre-fetch unit 107 is connected with motion compensation units 110, described in get module unit 108 and be connected with motion compensation units 110,
Described decoding schema dispensing unit 101 is for configuring the decoding schema of current described device, and described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern;
Described decoding control unit 102 is for sending decoding control command to MVD computing unit, described control command parsing module 113 is for resolving obtained control command, and described colmv data capture unit 104 for obtaining colmv data according to the control command after parsing from described bus unit 105;
Described MV computing unit 123, for carrying out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit;
Described block message computing module 117 of getting is for carrying out the second calculating to MV data, and what obtain reference block gets block message;
Described module unit 108 of getting obtains reference block pixel for the block message of getting according to reference block from described memory cell 109;
Described operation information computing module 127, for carrying out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block;
Described motion compensation units 110 carries out motion compensation for the calculating control command according to reference block to reference block pixel, obtains predict pixel.
When using interframe prediction decoding device to carry out the prediction of video image interframe, the first decoding schema of the current described device of decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern.Decoding schema dispensing unit can be by hardware implementing, also can pass through software simulating.In the present embodiment, decoding schema dispensing unit can realize in the following manner: register configuration module sends an index signal to decoding control block, contain the identification information that the decoding schema of current video bit stream data is corresponding in described index signal, described identification information can be numeral etc.
Then decoding control unit sends decoding control command to MVD computing unit, and control command parsing module is resolved obtained control command.MVD computing unit is inter prediction motion vector difference computing unit.Then colmv data capture unit obtains colmv data according to the control command after parsing from described bus unit.Colmv data calculate the necessary physical quantity of MV data one.How colmv data capture unit obtains the agreement belonging to decoding schema that colmv data defer to current resolved bit stream data.In the present embodiment, described memory cell also comprises colmv data storage cell, and described colmv data storage cell is used for storing the colmv data that colmv data capture unit obtains.The colmv data obtained often need to carry out distribution and calculate, and as calculated the boundary strength value of MV data or inter prediction, carrying out buffer memory by colmv data storage cell to obtained colmv data, being conducive to reducing computing time, improving decoding efficiency.
Then MV computing unit carries out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit.First calculates the colmv data be specially obtaining calculates MV data, and MV data are inter prediction motion vector, are the call parameters carrying out motion compensation.First calculates concrete algorithm different agreement (HEVC VP9 H264) difference to some extent, and the decoding schema specifically belonging to current code stream information, calculates according to related protocol.
In the present embodiment, described MVD computing unit also comprises boundary strength value computing module, and described boundary strength value computing module is used for carrying out the 4th calculating to obtained colmv data, obtains the boundary strength value of inter prediction.Further, the boundary strength value computing module of described device is also connected with filter unit in ring, and in described ring, filter unit is for obtaining the boundary strength value of inter prediction, and carries out filtering process in ring.The boundary strength value of inter prediction can be carried out the 4th and be calculated according to obtained colmv data, 4th calculates concrete algorithm different agreement (HEVC VP9 H264) difference to some extent, decoding schema specifically belonging to current code stream information, calculate according to related protocol, the second calculating and the 3rd calculates and in like manner can obtain.The boundary strength value of inter prediction is the necessary input parameter carrying out filtering process in ring, and in ring, filter unit is for carrying out filtering process to two field picture, to eliminate the blocking effect of current frame image.By calculating the boundary strength value of inter prediction and the filtering process of filter unit in ring, effectively expanding the function of interframe prediction decoding device, having made this application of installation wider.
Then get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message.Then get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block.In the present embodiment, memory cell is external cache (cache memory cell).Then operation information computing module carries out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block.The calculating control command of described reference block is the operation information to obtained reference block.Then motion compensation units carries out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.The pixel that motion compensation is specially reference block comprises is weighted prediction.So far, inter prediction all completes, and the predict pixel obtained is the pixel needing to export, and then can carry out the parse operation of next link.
In the present embodiment, described device also comprises buffer unit, described buffer unit comprises the first buffer unit and the second buffer unit, and described first buffer unit is used for carrying out buffer memory to decoding control command, and described second buffer unit is used for carrying out buffer memory to the calculating control command of reference block.Preferably, described buffer unit is FIFO, by to decoding control command with calculate control command buffer memory, control command resolution unit and motion compensation units is made only to need from the first buffer unit and the second buffer unit, to extract corresponding control command respectively, next step operation can be carried out, effectively can improve decoding efficiency.
As shown in Figure 2, and inventor additionally provides a kind of interframe prediction decoding method, described method is applied to interframe prediction decoding device, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, get module unit, motion compensation units, memory cell and bus unit, described MVD computing unit comprises control command parsing module and MV computing module, described reference block pre-fetch unit comprises gets block message computing module and operation information computing module, described decoding control unit is connected with MVD computing unit, described MVD computing unit is connected with colmv data capture unit, described colmv data capture unit is connected with bus unit, described MVD computing unit is connected with reference block pre-fetch unit, described reference block pre-fetch unit with get module unit and be connected, described module unit of getting is connected with memory cell, and described reference block pre-fetch unit is connected with motion compensation units, described in get module unit and be connected with motion compensation units, then said method comprising the steps of:
First enter the decoding schema of the current described device of step S201 decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern.Decoding schema dispensing unit can be by hardware implementing, also can pass through software simulating.In the present embodiment, decoding schema dispensing unit can realize in the following manner: register configuration module sends an index signal to decoding control block, contain the identification information that the decoding schema of current video bit stream data is corresponding in described index signal, described identification information can be numeral etc.
Then enter step S202 decoding control unit and send decoding control command to MVD computing unit, control command parsing module is resolved obtained control command.MVD computing unit is inter prediction motion vector difference computing unit.Then enter step S203colmv data capture unit and from described bus unit, obtain colmv data according to the control command after parsing.Colmv data calculate the necessary physical quantity of MV data one.How colmv data capture unit obtains the agreement belonging to decoding schema that colmv data defer to current resolved bit stream data.In the present embodiment, described memory cell also comprises colmv data storage cell, and described colmv data storage cell is used for storing the colmv data that colmv data capture unit obtains.The colmv data obtained often need to carry out distribution and calculate, and as calculated the boundary strength value of MV data or inter prediction, carrying out buffer memory by colmv data storage cell to obtained colmv data, being conducive to reducing computing time, improving decoding efficiency.
Then enter step S204MV computing unit and the first calculating is carried out to obtained colmv data, obtain MV data, and MV data are sent to reference block pre-fetch unit.First calculates the colmv data be specially obtaining calculates MV data, and MV data are inter prediction motion vector, are the call parameters carrying out motion compensation.First calculates concrete algorithm different agreement (HEVC VP9 H264) difference to some extent, and the decoding schema specifically belonging to current code stream information, calculates according to related protocol.
In the present embodiment, described MVD computing unit also comprises boundary strength value computing module, and described boundary strength value computing module is used for carrying out the 4th calculating to obtained colmv data, obtains the boundary strength value of inter prediction.Further, the boundary strength value computing module of described device is also connected with filter unit in ring, and in described ring, filter unit is for obtaining the boundary strength value of inter prediction, and carries out filtering process in ring.The boundary strength value of inter prediction can be carried out the 4th and be calculated according to obtained colmv data, 4th calculates concrete algorithm different agreement (HEVC VP9 H264) difference to some extent, decoding schema specifically belonging to current code stream information, calculate according to related protocol, the second calculating and the 3rd calculates and in like manner can obtain.The boundary strength value of inter prediction is the necessary input parameter carrying out filtering process in ring, and in ring, filter unit is for carrying out filtering process to two field picture, to eliminate the blocking effect of current frame image.By calculating the boundary strength value of inter prediction and the filtering process of filter unit in ring, effectively expanding the function of interframe prediction decoding device, having made this application of installation wider.
Then enter step S205 to get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message.Then enter step S206 to get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block.In the present embodiment, memory cell is external cache (cache memory cell).Then enter step S207 operation information computing module and the 3rd calculating is carried out to MV data, obtain the calculating control command of reference block, and be sent to motion compensating module with reference to the control command of block.The calculating control command of described reference block is the operation information to obtained reference block.Then enter step S208 motion compensation units, according to the calculating control command of reference block, motion compensation is carried out to reference block pixel, obtain predict pixel.The pixel that motion compensation is specially reference block comprises is weighted prediction.So far, inter prediction all completes, and the predict pixel obtained is the pixel needing to export, and then can carry out the parse operation of next link.
In the present embodiment, described device also comprises buffer unit, described buffer unit comprises the first buffer unit and the second buffer unit, and described first buffer unit is used for carrying out buffer memory to decoding control command, and described second buffer unit is used for carrying out buffer memory to the calculating control command of reference block.Preferably, described buffer unit is FIFO, by to decoding control command with calculate control command buffer memory, control command resolution unit and motion compensation units is made only to need from the first buffer unit and the second buffer unit, to extract corresponding control command respectively, next step operation can be carried out, effectively can improve decoding efficiency.
Interframe prediction decoding method and apparatus described in technique scheme, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, gets module unit, motion compensation units, memory cell and bus unit.Said method comprising the steps of: the decoding schema of the current described device of decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern.Decoding control unit sends decoding control command to MVD computing unit, and control command parsing module is resolved obtained control command.Colmv data capture unit obtains colmv data according to the control command after parsing from described bus unit.MV computing unit carries out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit; Get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message.Get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block.Operation information computing module carries out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block.Motion compensation units carries out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.The compatible HEVC of above-mentioned hardware structure, H264 and VP9 decoding schema, before the bit stream data of resolving different decoding schema, only need configure the decoding schema of present apparatus, the agreement regulation that then device can be corresponding according to current configured decoding schema carries out related resolution operation to bit stream data, thus achieve a kind of hardware structure compatibility of employing parsing HEVC, H264 and VP9 tri-overlaps the technical scheme of the bit stream data of agreement, hardware multiplexing rate is high, thus area when greatly reducing hardware designs, reduce power consumption, save hardware cost, thus in computer chip field, there are wide market prospects.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate 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 " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or terminal equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or terminal equipment.When not more restrictions, the key element limited by statement " comprising ... " or " comprising ... ", and be not precluded within process, method, article or the terminal equipment comprising described key element and also there is other key element.In addition, in this article, " be greater than ", " being less than ", " exceeding " etc. be interpreted as and do not comprise this number; " more than ", " below ", " within " etc. be interpreted as and comprise this number.
Although be described the various embodiments described above; but those skilled in the art are once obtain the basic creative concept of cicada; then can make other change and amendment to these embodiments; so the foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included within scope of patent protection of the present invention.
Claims (10)
1. an interframe prediction decoding device, it is characterized in that, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, get module unit, motion compensation units, memory cell and bus unit, described MVD computing unit comprises control command parsing module and MV computing module, described reference block pre-fetch unit comprises gets block message computing module and operation information computing module, described decoding control unit is connected with MVD computing unit, described MVD computing unit is connected with colmv data capture unit, described colmv data capture unit is connected with bus unit, described MVD computing unit is connected with reference block pre-fetch unit, described reference block pre-fetch unit with get module unit and be connected, described module unit of getting is connected with memory cell, and described reference block pre-fetch unit is connected with motion compensation units, described in get module unit and be connected with motion compensation units,
Described decoding schema dispensing unit is for configuring the decoding schema of current described device, and described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern;
Described decoding control unit is for sending decoding control command to MVD computing unit, described control command parsing module is used for resolving obtained control command, and described colmv data capture unit is used for the control command after according to parsing and obtains colmv data from described bus unit;
Described MV computing unit is used for carrying out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit;
Described block message computing module of getting is for carrying out the second calculating to MV data, and what obtain reference block gets block message;
Described module unit of getting obtains reference block pixel for the block message of getting according to reference block from described memory cell;
Described operation information computing module is used for carrying out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block;
Described motion compensation units is used for carrying out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.
2. interframe prediction decoding device as claimed in claim 1, it is characterized in that, described MVD computing unit also comprises boundary strength value computing module, and described boundary strength value computing module is used for carrying out the 4th calculating to obtained colmv data, obtains the boundary strength value of inter prediction.
3. interframe prediction decoding device as claimed in claim 2, it is characterized in that, the boundary strength value computing module of described device is also connected with filter unit in ring, and in described ring, filter unit is for obtaining the boundary strength value of inter prediction, and carries out filtering process in ring.
4. interframe prediction decoding device as claimed in claim 1, it is characterized in that, described device also comprises buffer unit, described buffer unit comprises the first buffer unit and the second buffer unit, described first buffer unit is used for carrying out buffer memory to decoding control command, and described second buffer unit is used for carrying out buffer memory to the calculation command of reference block.
5. interframe prediction decoding device as claimed in claim 1, it is characterized in that, described memory cell also comprises colmv data storage cell, and described colmv data storage cell is used for storing the colmv data that colmv data capture unit obtains.
6. an interframe prediction decoding method, it is characterized in that, described method is applied to interframe prediction decoding device, described device comprises decoding schema dispensing unit, decoding control unit, MVD computing unit, colmv data capture unit, reference block pre-fetch unit, get module unit, motion compensation units, memory cell and bus unit, described MVD computing unit comprises control command parsing module and MV computing module, described reference block pre-fetch unit comprises gets block message computing module and operation information computing module, described decoding control unit is connected with MVD computing unit, described MVD computing unit is connected with colmv data capture unit, described colmv data capture unit is connected with bus unit, described MVD computing unit is connected with reference block pre-fetch unit, described reference block pre-fetch unit with get module unit and be connected, described module unit of getting is connected with memory cell, and described reference block pre-fetch unit is connected with motion compensation units, described in get module unit and be connected with motion compensation units, then said method comprising the steps of:
The decoding schema of the current described device of decoding schema dispensing unit configuration, described decoding schema comprises HEVC pattern, H264 pattern and VP9 pattern;
Decoding control unit sends decoding control command to MVD computing unit, and control command parsing module is resolved obtained control command, and colmv data capture unit obtains colmv data according to the control command after parsing from described bus unit;
MV computing unit carries out the first calculating to obtained colmv data, obtains MV data, and MV data are sent to reference block pre-fetch unit;
Get block message computing module and carry out the second calculating to MV data, what obtain reference block gets block message;
Get module unit and from described memory cell, obtain reference block pixel according to the block message of getting of reference block;
Operation information computing module carries out the 3rd calculating to MV data, obtains the calculating control command of reference block, and is sent to motion compensating module with reference to the control command of block;
Motion compensation units carries out motion compensation according to the calculating control command of reference block to reference block pixel, obtains predict pixel.
7. interframe prediction decoding method as claimed in claim 6, it is characterized in that, described MVD computing unit also comprises boundary strength value computing module, then described method comprises:
The colmv data that boundary strength value computing module obtains carry out the 4th calculating, obtain the boundary strength value of inter prediction.
8. interframe prediction decoding method as claimed in claim 7, it is characterized in that, the boundary strength value computing module of described device is also connected with filter unit in ring, then described method comprises:
In ring, filter unit obtains the boundary strength value of inter prediction, and carries out filtering process in ring.
9. interframe prediction decoding method as claimed in claim 6, it is characterized in that, described device also comprises buffer unit, and described buffer unit comprises the first buffer unit and the second buffer unit, then described method comprises:
First buffer unit carries out buffer memory to decoding control command, and the second buffer unit carries out buffer memory to the calculation command of reference block.
10. interframe prediction decoding method as claimed in claim 6, it is characterized in that, described memory cell also comprises colmv data storage cell, and described method comprises:
Colmv data storage cell stores the colmv data that colmv data capture unit obtains.
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