CN108449602A - The coding of encoding block flag and the coding/decoding method of video bit stream and device - Google Patents
The coding of encoding block flag and the coding/decoding method of video bit stream and device Download PDFInfo
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Abstract
The invention discloses a kind of coding of encoding block flag, the coding/decoding methods and device of video bit stream.The coding/decoding method of above-mentioned video bit stream includes：The video bit stream is received from media or processor；It is formed according to the first context, restores the first encoding block flag from the video bit stream based on the decoding process of context adaptive binary arithmetic coding；And it is formed according to the second context, the second encoding block flag is restored from the video bit stream based on the decoding process of the context adaptive binary arithmetic coding, wherein first context is formed and second context forms the depth for each depending on residual error quaternary tree.The above method can simplify the method for signalling and raising efficiency of encoding block flag with device.
Description
Technical field
The present invention is about Video coding, and particularly, and the present invention is about efficient video coding (High-
Efficiency Video coding, HEVC) in coding unit (coding unit, CU) and converter unit (transform
Unit, TU) relevant encoding block flag (coded block flag, cbf) grammer (syntax) coding method and device with
And the coding/decoding method and device of video bit stream.
Background technology
HEVC be by the Video Coding Experts Group from ITU-T seminar at Video coding joint group (Joint
Collaborative Team on Video Coding, hereinafter referred to as JCT-VC) exploitation a kind of advanced Video coding system
System.In HEVC beta versions 5.0 (HM-5.0), interframe encode (inter-coded) and intraframe coding (intra-coded)
Residual error is encoded in the way of the block-based transition coding.Above-mentioned piece (being known as converter unit) is to utilize quad-tree structure from root
Block (root converter unit) is divided.Above-mentioned Quadtree Partition can be applied recursively until generate leaf block (leaf block) or
Person's smallest blocks.Later, two-dimensional transform is applied to each converter unit.Each converter unit (TU) may be logically divided into four sub- TU,
That is leaf TU.For every TU, need to transmit a syntactic element for being called cbf (encoding block flag) whether to indicate this TU
With non-zero transform coefficient, wherein " 1 " indicates that, there are at least one non-zero transform coefficient, " 0 " then indicates that non-zero transform is not present
Coefficient.
In HM-5.0, for luminance component, the leaf TU that cbf can only be directed to residual error quaternary tree is transmitted
(signaled).And for chromatic component, cbf is then directed to root TU and leaf TU and can transmit, however, cbf is also only in size
It is transmitted in TU less than or equal to maximum chrominance TU sizes.Fig. 1 to Fig. 3 shows that cbf transmits the example of (signalling).
In Fig. 1, block 110 shows the residual error Quadtree Partition of TU, wherein Quadtree Partition, root TU is utilized to be divided into sub- TU (TU
0~TU 6).Block 120 shows corresponding cbf bits, and wherein TU 1, TU 3, TU 5 and TU 6 have a non-zero transform coefficient, and TU
0, TU 2 and TU 4 does not have non-zero transform coefficient then.It is transmitted just for leaf TU if this TU is brightness TU, cbf bit.Fig. 2A
It is the example that (cbf codings) is transmitted for the cbf of brightness TU, wherein four groups of bits " 0 ", " 1 ", " 0101 " and " 1 " are right respectively
The cbf bits of four leaf TU of Ying Yugen TU 210.Above-mentioned cbf bits are sent out according to P-SCAN (raster-scan) sequence
Letter, i.e., according to the sequence of upper left TU, upper right TU, lower-left TU, bottom right TU.For the leaf TU of lower-left, further it is divided
At 4 leaf TU.In P-SCAN sequence, the cbf bits of this leaf TU are " 0101 ".Correspondingly, Fig. 2A shows cbf bits
220 four groupings.Fig. 2 B are shown transmits example for the cbf of coloration TU, and wherein cbf bits can be directed to root TU and leaf TU is passed
It send.Root TU 230 is divided into four leaf TU, and lower-left leaf TU is further divided into four leaf TU.Therefore, correspond to TU's
Three level can there are three the cbf bits of level.For root TU (that is, depth=0), cbf bits " 1 " are (by 240 table of number
Show) it is transmitted.For four leaf TU of root TU, according to P-SCAN sequence, cbf bits be respectively " 0 ", " 1 ", " 1 " and
" 1 " (is indicated) by number 250.For the leaf TU of lower-left, four leaf TU are further divided into, it is suitable according to P-SCAN
Sequence, aforementioned four leaf TU correspond respectively to cbf bits " 0 ", " 1 ", " 0 " and " 1 " (being indicated by number 260).Such as Fig. 2A and Fig. 2 B
Shown, although brightness TU and coloration TU uses identical RQT (residual error quaternary tree), transmitting for cbf is different.Shown in Fig. 2 B
Example is suitable for the situation that root block size is less than or equal to maximum chrominance TU sizes.For example, it is assumed that maximum chrominance TU sizes
For 16 × 16 and minimal color TU sizes be 4 × 4, then the size of root TU 230 is 16 × 16, each leaf in each lower-left leaf TU
The size of TU is 4 × 4.When the size of coloration leaf TU is more than maximum chrominance TU sizes, for example 32 × 32, then 32 × 32 layer
Grade will not carry out cbf and transmit.
In order to reduce the quantity of cbf bits, a kind of estimating method can be applied and brightness and coloration TU, in the method, root
The cbf of the 4th leaf TU of TU can be inferred to using the cbf of other TU.To be transmitted without the cbf to the 4th leaf TU.
For brightness TU, the cbf of the 4th leaf TU can be by the cbf's and relevant TU of three previous leaf TU
Cbf is inferred to.Block 310 in Fig. 3 shows the example that the cbf of the 4th leaf TU can be pushed off out.It is indicated by bold box 312
Lower-left TU be divided into four leaf TU, wherein the cbf of the 4th leaf TU be 1.Since TU 312 is divided into four leaf TU,
There are at least one non-zero transform coefficients in four leaf TU.When the cbf of three first frontal lobe TU is 0 (according to P-SCAN
Sequentially), the cbf of the last one leaf TU (that is, the 4th leaf TU) necessarily 1.Therefore, in this situation, the cbf of the 4th leaf TU can quilt
It is inferred to.For simplicity, the cbf of leaf TU is also referred to as leaf cbf.
It is for coloration TU, then different for the progress cbf transmission of all residual error quaternary tree levels due to needing.It is right
In with for the relevant four leaf TU of each TU, the cbf of root TU can be transmitted.If the cbf of TU (block 312 in Fig. 3) is 1,
Then necessarily there is at least one non-zero leaf TU in four leaf TU.Therefore, if the cbf of first three leaf TU is 0, the last one leaf TU
The cbf of (shown in circle) necessarily 1.In this situation, the last one cbf can be pushed off out without being transmitted.Further
For, in the frame of chromatic component and interframe encode TU can all apply above-mentioned deduction mechanism.
In HEVC, there are the root residual error flags (root residual flag) that one is used for interframe encode CU.When residual
When poor flag is false (false), then whole cbf of Y, U, V component need not be transmitted.As the TU that residual error flag is true and current CU
Depth be 0 when, if coloration cbf all be 0 when if deducibility brightness cbf be 1.Therefore, if the cbf of U (block 320) and V (block 330) all
It is 0, then cbfs of the brightness TU when depth is 0 can be inferred to be 1, as shown in Figure 3.
In HM-5.0, the maximum TU sizes of chromatic component and luminance component are respectively 16 × 16 and 32 × 32.However, color
The maximum CU sizes for spending component are 32 × 32.Therefore, maximum CU sizes and maximum TU are differed.Furthermore, it is understood that in HM-
In 5.0, the TU that coloration cbf is less than or equal to maximum TU sizes only for size is transmitted.For example, when CU sizes be 64 ×
64, that is, chrominance C U sizes are 32 × 32, and maximum TU sizes then correspond to 16 × 16.Therefore, four root cbf will be directed to 32 ×
Four 16 × 16 coloration TU in 32CU and transmit.In this situation, even if four cbf can be transmitted if being 0 cbf, such as scheme
Shown in 4, wherein the size of chrominance C U 410 is 32 × 32.
As described above, the cbf method of signalling for brightness TU and coloration TU is different.Therefore, it is necessary to a kind of unifications
Cbf method of signalling is to simplify the above process.In addition, in existing cbf method of signalling, there are some redundancies, therefore are also required to further
Promote the efficiency of existing cbf method of signalling.
Invention content
In view of this, providing following technical scheme：
The embodiment of the present invention provides a kind of coding/decoding method and device of video bit stream, and wherein method includes：From media
Or processor receives the video bit stream；It is formed according to the first context, is based on context adaptive binary arithmetic coding
Decoding process the first encoding block flag is restored from the video bit stream, wherein the first encoding block flag and the first color point
First converter unit of amount is related, which indicates whether first converter unit of first color component has
There is an at least non-zero transform coefficient；And formed according to the second context, it is based on the context adaptive binary arithmetic coding
Decoding process the second encoding block flag is restored from the video bit stream, wherein the second encoding block flag and the second color point
Second converter unit of amount is related, which indicates whether second converter unit of second color component has
There is an at least non-zero transform coefficient, wherein first color component is different from second color component, and the first context shape
At the depth for each depending on residual error quaternary tree with second context formation.
The embodiment of the present invention provides a kind of coding method of encoding block flag and device, wherein method include：From media
Or processor receives the second converter unit of the first converter unit and the second color component of the first color component；It determines and is somebody's turn to do
The relevant first residual error quaternary tree of first converter unit and with the relevant second residual error quaternary tree of second converter unit；Decision pair
Should the first encoding block flag in first converter unit and the second encoding block flag corresponding to second converter unit,
In the first encoding block flag indicate first converter unit whether have an at least non-zero transform coefficient, the second encoding block flag
Mark indicates whether second converter unit has an at least non-zero transform coefficient；And formed according to the first context, based on upper
Hereafter the coding pass of adaptive binary arithmetic coding encodes the first encoding block flag, and according to the second context
It is formed, the second encoding block flag is encoded based on the coding pass of the context adaptive binary arithmetic coding, from
And generate video bit stream, wherein first color component is different from second color component, and first context formed and
Second context forms the depth for each depending on residual error quaternary tree.
The process described above and device can simplify the method for signalling and raising efficiency of encoding block flag.
Description of the drawings
Fig. 1 is the residual error quad-tree structure of leaf transformation unit and the schematic diagram of encoding block flag example.
The schematic diagram of encoding block flag method of signalling examples of the Fig. 2A according to HM-5.0, for luminance transformation unit.
The schematic diagram of encoding block flag method of signalling examples of Fig. 2 B according to HM-5.0, for chromaticity transformation unit.
Fig. 3 is that the encoding block flag of luminance transformation unit and chromaticity transformation unit based on deduction transmits the signal of example
Figure.
Fig. 4 is that the encoding block flag of the encoding block flag for four 16 × 16 coloration root converter units transmits showing for example
It is intended to.
Fig. 5 be according to the present invention embodiment, for the encoding block flag of interframe encode unit infer that mechanism example shows
It is intended to.
Fig. 6 A and 6B are that embodiment, the encoding block flag of chromatic component are transmitted in coding unit level according to the present invention
The schematic diagram of example.
Fig. 7 is the schematic diagram of the exemplary flow for the encoder for integrating the embodiment of the present invention.
Fig. 8 is the schematic diagram of the exemplary flow for the decoder for integrating the embodiment of the present invention.
Fig. 9 is the schematic diagram of the exemplary flow for the encoder for integrating another embodiment of the present invention.
Figure 10 is the schematic diagram of the exemplary flow for the decoder for integrating another embodiment of the present invention.
Specific implementation mode
In one embodiment of the invention, by the way that coloration cbf coding methods are extended to brightness cbf, brightness and coloration
The method of signalling of cbf is able to unification.Therefore, brightness and coloration cbf can all be transmitted for each level of residual error quaternary tree.Change sentence
It talks about, cbf, which is transmitted, can be directed to root TU and leaf TU is carried out.In this situation, the estimating method for being used for brightness and chromatic component also obtains
To unification.Therefore, brightness TU and coloration TU uses identical estimating method.In other words, if the cbf of first three leaf TU is 0,
Then the cbf of the last one leaf TU is necessarily 1.
In another embodiment, it is applied to unified method of signalling for the residual error flag estimating method of interframe CU.Cause
This, when residual error flag is true and the cbf of coloration TU is all 0, the cbf of top layer root brightness TU is inferred to be 1 but regardless of this top layer
Whether root TU can be further segmented.Furthermore, it is understood that the above-mentioned residual error flag estimating method for interframe CU can also be answered
With other TU depth extremely other than depth 0.In other words, when TU is further segmented and coloration cbf is 0, brightness
The cbf of TU can be inferred to be 1.As shown in figure 5, when residual error flag is 1 and is used for the cbf of coloration root TU (U 520 and V530) all
When being 0, the cbf of brightness root TU 510 can be inferred to be 1.
It can also unify with coloration cbf phases furthermore, it is understood that the context of coloration cbf forms (context formation),
So that based on context adaptive binary arithmetic coding (context-based adaptive arithmetic coding,
CABAC the context formation of cbf codings) both depends on TU depth for brightness and chromatic component.In order to reduce cbf flags
The quantity of the complexity of target entropy coding, context can be reduced.In addition, bypass coding mode (bypass coding mode)
It can also be used for the cbf codings based on CABAC.
In another embodiment, root cbf is always transmitted in CU levels and is ignored maximum TU sizes.Therefore, in every CU
It is constantly present root cbf.Fig. 6 A and 6B are the cbf cataloged procedures when chrominance C U sizes are 32 × 32 and maximum TU sizes are 16 × 16
Example.In fig. 6, chrominance C U corresponds to 32 × 32 block, is more than maximum chrominance TU sizes (i.e. 16 × 16).Due to
The relevant all coloration TU of CU (indicate) that the root cbf for being then used for chrominance C U is 0 without non-zero transform coefficient with 0.According to this hair
Bright embodiment, the root cbf in every CU are always transmitted, therefore 0 can be transmitted for CU, be sent out without other cbf
Letter.Fig. 6 B show another example, and wherein lower-left TU includes at least one non-zero transform coefficient.In this situation, 1 sent with
For root chrominance C U, and other cbf bits " 0010 " are also transmitted to indicate which TU includes non-zero transform coefficient.Base
In the coded system of HM-5.0, the maximum TU sizes of brightness and chromatic component are known.The information of maximum TU sizes also may be used
It is transmitted in bit stream, such as in the sequence-level (for example, SPS) of bit stream.
In another embodiment, by the way that brightness cbf coding methods are extended to coloration cbf, brightness and coloration cbf's transmits
Method is able to unification.To which brightness and coloration cbf are transmitted only for leaf TU.
Above-described cbf method of signalling can be applied in video encoder, equally can also be applied to video decoding
In device.Fig. 7 is the schematic diagram of the exemplary flow for the encoder for integrating the embodiment of the present invention.In step 720, current CU is determined
Residual error, wherein the size of current CU be more than maximum TU sizes.In step 720, the first cbf of color component is determined, first
Cbf indicates whether current CU (depth=0) has an at least non-zero transform coefficient.As indicated by step 730, according to the first cbf's
As a result different processing paths may be selected.If the current CU of color component has an at least non-zero transform coefficient, in step 740
Middle four the 2nd cbf for determining color component, wherein every 1 second cbf indicates four sub-blocks of the color component in current CU
Whether one of (depth=1) has an at least non-zero transform coefficient.In this situation, as shown in step 750, the first cbf and four
A 2nd cbf can be integrated into video bit stream.If current CU does not have non-zero transform coefficient, as shown in step 760,
Only the first cbf is integrated into video bit stream.It will allow to decode by the way that cbf to be integrated into the cbf in video bit stream and transmit
Device restores residual error quad-tree structure and executes corresponding decoding program.In some embodiments, if color component it is at least one
Sub-block has an at least non-zero transform coefficient, and the minimum TU sizes of this sub-block and not up to color component, then there is non-zero to become
The sub-block for changing coefficient is further divided into 4 leaf blocks (depth=2).Each sub-block with non-zero transform coefficient is come
It says, four the 3rd cbf are determined, wherein whether one of four leaf blocks of each 3rd cbf instruction color components have at least one
Non-zero transform coefficient.Four the 3rd cbf of above-mentioned color component are also integrated into video bit stream.Above-mentioned sub-block and leaf block can be with
It is the root TU and leaf TU in current CU.Above-mentioned color component can be brightness or chromatic component.
Fig. 8 is the schematic diagram of the exemplary flow for the decoder for integrating the embodiment of the present invention.In step 810, from media
(media) or processor (processor) receives video bit stream.Above-mentioned video bit stream can be stored in media, such as
It stores in media (hard disk, CD, flash card) or computer storage (RAM, PROM, DRAM or flash memory).Video bit stream
It can be received and/or handled by processor.For example, in broadcast environment, channel receiver (channel receiver) can
The signal of modulation is received, demodulation and demultiplexing are to restore required bit stream.In this situation, video bit stream is received from processor
(that is, channel receiver).In step 830, the first cbf of color component is decoded, the first cbf indicates the current of this color component
Whether CU (depth=0) has an at least non-zero transform coefficient.As illustrated in step 840, it may be selected according to decoding result different
Decoding paths.If the first cbf of color component is not 0, four the 2nd cbf of color component are decoded in step 850, wherein
Every 1 second cbf indicates whether one of four sub-blocks (depth=1) of the color component in current CU become with an at least non-zero
Change coefficient.In step 860, the residual error quaternary tree knot of the current CU of color component is determined based on the first cbf and four the 2nd cbf
Structure.If four the 2nd cbf of color component are 0, as shown in step 870, the first cbf is based only upon to determine color component
The residual error quad-tree structure of current CU.In some embodiments, if a sub-block of the color component in depth=1 has at least one
Non-zero transform coefficient, and the size of this sub-block is more than the minimum TU sizes of color component, then decodes four thirds of color component
cbf.Whether one of four leaf blocks of wherein each 3rd cbf instruction color components of color component have an at least non-zero transform
Coefficient.At this point, the residual error quad-tree structure of the current CU of color component is to be based on above-mentioned first cbf, the 2nd cbf and third
Cbf is determined.Above-mentioned sub-block and leaf block can be root TU and leaf TU in current CU.Above-mentioned color component can be brightness or color
Spend component.
Fig. 9 is the schematic diagram of the exemplary flow for the encoder for integrating another embodiment of the present invention.In step 910, from
Media or processor receive TU.Then determined and the relevant RQT of this TU (residual error quaternary tree) in step 920.In step 930
In, one or more cbf of the RQT corresponding to this TU are determined, wherein the transmitting for cbf for luminance component and chromatic component is phase
With.
Figure 10 is the schematic diagram of the exemplary flow for the decoder for integrating another embodiment of the present invention.In step 1010,
Video bit stream is received from media or processor.In step 1020, decision and the relevant cbf of TU, wherein this cbf is from video
It is restored in bit stream.In step 1030, based on above-mentioned cbf decisions and the relevant residual error quaternary trees of TU, wherein being used for brightness
Transmitting for the cbf of component and chromatic component is identical.
Encoder and decoder of the above-described flow just for the sake of description for incorporating the embodiment of the present invention
The example that cbf is transmitted.Without departing from the spirit of the invention, those skilled in the art can change each step, to upper
Step rearrangement is stated, a step is split, or integrates multiple steps to realize the present invention.
Above description is to enable those skilled in the art to the above particular implementation and its demand hereinafter
To realize the present invention.However, those skilled in the art should can carry out it various modifications and modification, and the present invention's is substantially smart
God can also be applied in other embodiment.Therefore, the present invention is not limited with the specific embodiment, and should be to meet this hair
The most wide ranging from boundary of bright objective and new feature.In foregoing detailed description, illustrate that various specific details are for the ease of right
The present invention has comprehensive understanding, however, it should be understood that the present invention can be not limit these specific thin
Implement in the case of some or all in section.
It is above-mentioned according to an embodiment of the invention can with different hardware, software code, or both combination implement.Citing
For, an embodiment according to the present invention can be the electricity for implementing the method, being integrated into video compress chip
Road, or the program code that is integrated into video compression software.Another embodiment according to the present invention can also be digital letter
It is being executed on number processor (Digital Signal Processor, DSP), for implementing the program code of the method.This
Invention also may include by computer processor, DSP, microprocessor or field programmable gate array (Field Programmable
Gate Array, FPGA) execute a series of functions.According to the present invention, certain party of the embodiment of the present invention is defined by executing
The machine-readable software code or firmware code of method, these processors can be arranged to execute specific task.The software generation
Code or firmware code can mention different-format/pattern to develop by different programming languages.The software code also may conform to not
Same target platform.However, executing software with corresponding task of the invention, with different code format, pattern and language
The code that code and other modes are formed all should be within the scope of the present invention.
Under the premise of not departing from the spirit and essential characteristic of the present invention, the present invention also can be with other particular forms come real
It applies.Embodiment described above is of the invention just for the sake of illustrating, and the limitation of non-present invention.The scope of the present invention is when appended
Subject to claim, all equivalent changes and modifications done according to the claims in the present invention should all belong to the covering scope of the present invention.
Claims (14)
1. a kind of coding/decoding method of video bit stream, including：
The video bit stream is received from media or processor；
It is formed according to the first context, based on the decoding process of context adaptive binary arithmetic coding from the video bit stream
The first encoding block flag of middle reduction, wherein the first encoding block flag is related to the first converter unit of the first color component, should
First encoding block flag indicates whether first converter unit of first color component has an at least non-zero transform coefficient；With
And
It is formed according to the second context, based on the decoding process of the context adaptive binary arithmetic coding from the video bits
The second encoding block flag is restored in stream, wherein the second encoding block flag is related to the second converter unit of the second color component,
The second encoding block flag indicates whether second converter unit of second color component has an at least non-zero transform coefficient,
Wherein first color component is different from second color component, and first context is formed and the second context shape
At the depth for each depending on residual error quaternary tree.
2. the coding/decoding method of video bit stream as described in claim 1, which is characterized in that first color component is brightness point
Amount, second color component are chromatic component.
3. the coding/decoding method of video bit stream as described in claim 1, which is characterized in that first context formation depends on
With the depth of the relevant residual error quaternary tree of first converter unit.
4. the coding/decoding method of video bit stream as described in claim 1, which is characterized in that second context formation depends on
With the depth of the relevant residual error quaternary tree of second converter unit.
5. the coding/decoding method of video bit stream as described in claim 1, which is characterized in that the first encoding block flag and this
One in two encoding block flags transmits at root converter unit and leaf transformation unit, the first encoding block flag and second volume
Another in code block flag is transmitted at leaf transformation unit and is not transmitted at root converter unit.
6. the coding/decoding method of video bit stream as described in claim 1, which is characterized in that no matter the block size of coding unit is
No to be more than maximum converter unit size, at least one of the first encoding block flag and the second encoding block flag are in the coding
The root rank of unit transmits.
7. a kind of coding method of encoding block flag, including：
The second transformation that the first converter unit and the second color component of the first color component are received from media or processor is single
Member；
Determine with the relevant first residual error quaternary tree of first converter unit and with relevant second residual error of second converter unit
Quaternary tree；
Determine the first encoding block flag corresponding to first converter unit and the second volume corresponding to second converter unit
Code block flag, wherein the first encoding block flag indicate whether first converter unit has an at least non-zero transform coefficient, should
Second encoding block flag indicates whether second converter unit has an at least non-zero transform coefficient；And
It is formed according to the first context, based on the coding pass of context adaptive binary arithmetic coding to first encoding block
Flag is encoded, and is formed according to the second context, the coding pass based on the context adaptive binary arithmetic coding
The second encoding block flag is encoded, to generate video bit stream,
Wherein first color component is different from second color component, and first context is formed and the second context shape
At the depth for each depending on residual error quaternary tree.
8. the coding method of encoding block flag as claimed in claim 7, which is characterized in that first color component is brightness point
Amount, second color component are chromatic component.
9. the coding method of encoding block flag as claimed in claim 7, which is characterized in that first context formation depends on
With the depth of the relevant residual error quaternary tree of first converter unit.
10. the coding method of encoding block flag as claimed in claim 7, which is characterized in that second context formation is depended on
In the depth with the relevant residual error quaternary tree of second converter unit.
11. the coding method of encoding block flag as claimed in claim 7, which is characterized in that the first encoding block flag and should
One in second encoding block flag transmits at root converter unit and leaf transformation unit, the first encoding block flag and this second
Another in encoding block flag is transmitted at leaf transformation unit and is not transmitted at root converter unit.
12. the coding method of encoding block flag as claimed in claim 7, which is characterized in that no matter the block size of coding unit
Whether maximum converter unit size is more than, and at least one of the first encoding block flag and the second encoding block flag are in the volume
The root rank of code unit transmits.
13. a kind of decoding apparatus of video bit stream, including：
Processor, in program stored in executing memory, perform claim requires the video bits described in any one of 1-6
The step of coding/decoding method of stream.
14. a kind of code device of encoding block flag, including：
Processor, in program stored in executing memory, perform claim requires the encoding block described in any one of 7-12
The step of coding method of flag.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/070612 WO2013107027A1 (en) | 2012-01-19 | 2012-01-19 | Methods and apparatuses of cbf coding in hevc |
| CNPCT/CN2012/070612 | 2012-01-19 | ||
| CN201380006152.6A CN104137545B (en) | 2012-01-19 | 2013-01-07 | The coding of encoding block flag and the coding/decoding method of video bit stream and device |
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| CN111372082A (en) * | 2019-03-27 | 2020-07-03 | 北京达佳互联信息技术有限公司 | Coding and decoding method and device for coding block flag CBF in video coding |
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