CN106658059A - Video transcoding method, device and system - Google Patents
Video transcoding method, device and system Download PDFInfo
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- CN106658059A CN106658059A CN201611105288.4A CN201611105288A CN106658059A CN 106658059 A CN106658059 A CN 106658059A CN 201611105288 A CN201611105288 A CN 201611105288A CN 106658059 A CN106658059 A CN 106658059A
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- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 8
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- 230000001052 transient effect Effects 0.000 description 9
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440236—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234336—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by media transcoding, e.g. video is transformed into a slideshow of still pictures or audio is converted into text
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- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The embodiment of the invention discloses a video transcoding method, device and system, and relates to the technical field of video image processing. The method comprises the following steps: acquiring a to-be-encoded video source; acquiring a target encoding format for characterizing target definition; and encoding the video source from preset encoding formats of multistage definitions lower than the target definition to the target encoding format stage by stage. Therefore, when the video source is encoded in the target encoding format, the encoding of the high-definition encoding format can be guided depending on low definitions, and the encoding efficiency of the low-definition encoding format is higher than that of the high-definition encoding format, so that the encoding efficiency of the video source is improved.
Description
Technical field
The present invention relates to technical field of video image processing, and in particular to a kind of video transcoding method, apparatus and system.
Background technology
Along with the development and popularization of network technology, viewing experience and requirement also more and more higher of the people to video.For
For internet video content supplier, there is provided be also its core competitiveness to user's high-quality, high smooth Video service
Embody.Existing internet video content was required for generating standardization, multi-code through video code conversion before access customer is entered
Rate, high-resolution multiple versions come meet different user network watch demand.So the efficiency of video code conversion how is improved, one
It is directly that internet video website is pursued.
The viewing demand of heterogeneous networks user is met to generate multi code Rate of Chinese character, generally by video frequency output be defined as into
Multiple video class such as 1080P, 720P, high definition, SD, smoothness.In prior art, each class passes through distributed trans-coding system
System, it is completely self-contained to carry out transcoding.Although this system building and realizing relatively simple, do not make full use of same
Content relation under different definitions, and cause the transcoding wasting of resources.
Therefore, the technical problem that transcoding efficiency becomes urgently to be resolved hurrily how is improved.
The content of the invention
In view of this, a kind of video transcoding method, apparatus and system are embodiments provided, to improve transcoding effect
Rate.
According in a first aspect, embodiments provide a kind of video transcoding method, including：
Obtain video source to be encoded；Obtain the target code form for characterizing target sharpness；From being less than, target is clear
Step by step video source is encoded to target code form in the clear coded format for spending default multistage definition.
Alternatively, step by step to target code form from the coded format less than the default multistage definition of target sharpness
Carrying out coding to video source includes：Obtain the coding mode information under N-1 level definition coded formats；It is clear using N-1 levels
Coding mode information under clear degree coded format carries out the coded format coding of N level definitions to video source, and N is more than 1
Integer.
Alternatively, coding mode information includes：Any one in frame type decision, mode decision or combination in any.
Alternatively, step by step to target code form from the coded format less than the default multistage definition of target sharpness
Carrying out coding to video source includes：Obtain the macro block position and/or motion vector under N-1 level definition coded formats；According to
Under the coded format coding of macro block position and/or motion-vector prediction N level definitions under N-1 level definition coded formats
Macro block position and/or motion vector, N is the integer more than 1.
Alternatively, the coded format of N level definitions is predicted according to the macro block position under N-1 level definition coded formats
Macro block position under coding includes：The place-centric of the macro block position under N-1 level definition coded formats is clear as N levels
Place-centric under clear degree coded format coding carries out the macro block position search of N level definition coded formats；And/or, according to
Motion vector bag under the coded format coding of the motion-vector prediction N level definitions under N-1 level definition coded formats
Include：Using the result of the estimation under N-1 level definition coded formats as under the coded format coding of N level definitions
Estimation initiating searches point carries out estimation.
According to second aspect, a kind of video code conversion device is embodiments provided, including：
Video source acquisition module, for obtaining video source to be encoded；Object format acquisition module, for obtaining table is used for
Levy the target code form of target sharpness to be switched；Coding module, for default multistage clear from target sharpness is less than
To target code form video source is encoded step by step in the coded format of degree.
Alternatively, coding module includes：First acquisition unit, for the volume under acquisition N-1 level definition coded formats
Pattern information；First coding unit, for using the coding mode information under N-1 level definition coded formats to video source
The coded format coding of N level definitions is carried out, N is the integer more than 1.
Alternatively, coding module includes：Second acquisition unit, for obtain N-1 level definition coded formats under it is grand
Block position and/or motion vector；Second coding unit, for according to the macro block position under N-1 level definition coded formats and/
Or the macro block position and/or motion vector under the coded format coding of motion-vector prediction N level definitions, N is whole more than 1
Number.
Alternatively, second acquisition unit is additionally operable in the position of the macro block position under N-1 level definition coded formats
The heart is searched as the macro block position that the place-centric under N level definitions coded format coding carries out N level definition coded formats
Rope；And/or, be additionally operable to using the result of the estimation under N-1 level definition coded formats as N level definitions coding
Estimation initiating searches point under said shank carries out estimation.
According to the third aspect, a kind of video code conversion system is embodiments provided, including：Video source reception device,
For receiving video source to be encoded；At least one processor；And the storage being connected with least one processor communication
Device；Wherein, have can be by the instruction of at least one computing device for the memory storage, and the instruction is by described at least one
Individual computing device, to make any one optional mode of at least one computing device first aspect or first aspect
Described in video transcoding method.
According to fourth aspect, a kind of non-transient computer readable storage medium storing program for executing is embodiments provided, it is described non-temporary
State computer-readable recording medium storage computer instruction, the computer instruction is used to make the computer perform first aspect
Or the video transcoding method described in any one optional mode of first aspect.
According to the 5th aspect, a kind of computer program, the computer program are embodiments provided
Including the calculation procedure being stored on non-transient computer readable storage medium storing program for executing, the computer program includes programmed instruction, when
Described program instruction is when being computer-executed, make the computer perform first aspect or first aspect any one is optional
Video transcoding method described in mode.
Video transcoding method, apparatus and system that the embodiment of the present invention is provided, due to obtaining video source to be encoded after,
Step by step video source is compiled to target code form from the coded format less than the default multistage definition of target sharpness
Code so that when carrying out target code form to video source and encoding, using low definition fine definition can be instructed to compile
The coding of code form, and the code efficiency of low definition coded format is high relative to the code efficiency of fine definition, so as to carry
The code efficiency of video source is risen.
As optional technical scheme, using the coding mode information under N-1 level definition coded formats to video source
The coded format coding of N level definitions is carried out, it is clear so as to can effectively be multiplexed upper level when this grade of definition is encoded
The pattern information of degree, improves coding quality.
As optional technical scheme, according to macro block position and/or motion vector under N-1 level definition coded formats
The macro block position and/or motion vector under the coded format coding of N level definitions is predicted, thus, it is possible to it is empty to be based on definition
Domain and/or relativity of time domain to instruct this grade of definition coded format under video code conversion, so as to preferably improve video turn
Code efficiency.
Description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solution is to carry out any restriction to the present invention, in the accompanying drawings：
Fig. 1 shows a kind of flow chart of video transcoding method according to embodiments of the present invention；
Fig. 2 shows a kind of video code conversion schematic device according to embodiments of the present invention；
Fig. 3 shows the schematic diagram of electronic equipment according to embodiments of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those skilled in the art are not having
Have and make the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
The present embodiment is contemplated that：There is certain pass in coded format of the same video image content under different definitions
Connection property, makes full use of this relatedness, the coded format of different definitions can be instructed, so as to improve transcoding efficiency.
In order to improve the transcoding efficiency of video source, present embodiment discloses a kind of video transcoding method, refer to Fig. 1, it is that the video turns
Code method flow diagram, the video transcoding method comprises the steps：
Step S1, obtains video source to be encoded.In the present embodiment, video source to be encoded can be obtained from local,
Can obtain from server, can also be obtained from video acquisition device by I/O equipment.For independent video flowing, can
To decode to it, the video source of editable yuv format is generated, the video source of alleged yuv format refers to unpressed original
Beginning video source.
Step S2, obtains the target code form for characterizing target sharpness.In a particular embodiment, if can preset
The coded format of dry definition.In the present embodiment, grade of the target code form from low definition to fine definition can be example
Such as smoothness, SD, high definition, 360P, 540P, 720P, 1080P, in a particular embodiment, can arbitrarily arrange as needed it
The coded format of his definition.
Step S3, step by step to target sharpness volume from the coded format less than the default multistage definition of target sharpness
Code form is encoded to video source.For ease of it will be appreciated by those skilled in the art that as an example, such as target sharpness encodes lattice
Formula is " 540P ", then the coded format that can first carry out " smoothness " definition is encoded to video source, and " mark is then switched to successively
Clearly ", " high definition " and " 360P ", until the coded format for switching to " 540P " definition is encoded to video source.
In order to effectively be multiplexed the coding information of low resolution coded format, in an alternate embodiment of the invention, in execution step S3
When, can include：Obtain the coding mode information under N-1 level definition coded formats；Lattice are encoded using N-1 levels definition
Coding mode information under formula carries out the coded format coding of N level definitions to video source, and N is the integer more than 1.Concrete
In embodiment, coding mode information includes：Any one in frame type decision, mode decision or combination in any.Alleged frame class
Type includes：I frames, P frames, B frame decision-makings, mode decision includes the determination of frame in or interframe encoding mode.As an example, with 360P,
As a example by tri- kinds of definition codings of 540P, 720P, using 360P as the basis of frame type decision, 540P and 720P can be multiplexed 360P
Frame type.Same 540P can be using the coding mode of 360P correspondence macro block positions as candidate coding pattern, and 720P can be with
Using the pattern of 540P correspondence macro block positions as candidate coding pattern.
In an alternate embodiment of the invention, in execution step S3, can include：Under obtaining N-1 level definition coded formats
Macro block position and/or motion vector；It is pre- according to the macro block position and/or motion vector under N-1 level definition coded formats
The macro block position surveyed under the coded format coding of N level definitions and/or motion vector, N is the integer more than 1.So as to, according to
The dependency of definition coding information not at the same level, fully can step by step be multiplexed on the whole the coding information of low definition level.
In a particular embodiment, according to the macro block position prediction N level definitions under N-1 level definition coded formats
Coded format coding under macro block position include：By the place-centric of the macro block position under N-1 level definition coded formats
The macro block position search of N level definition coded formats is carried out as the place-centric under N level definitions coded format coding.
For N level definition coded formats, because definition is more than N-1 level definitions, so under N-1 level definitions
The coding information of same macro block position will be predicted, and the candidate for being used as current N levels definition correspondence position is reducing volume
Code predictive mode.
In a particular embodiment, according to the motion-vector prediction N level definitions under N-1 level definition coded formats
Coded format coding under motion vector when include：The result of the estimation under N-1 level definition coded formats is made
Estimation is carried out for the estimation initiating searches point under the coded format coding of N level definitions.For interframe movement is estimated
For meter, because same frame is the performance of the different definitions to same content, so interior have great dependency.N-
The result of the estimation under 1 grade of definition coded format, can be used as the time of estimation under N level definition coded formats
Select initiating searches point.Coding rate is lifted so as to reduce hunting zone.
It should be noted that in a particular embodiment, in the coded format from low definition to target code form to regarding
During frequency source carries out transcoding, it is also possible to the corresponding coded format video of definition coded formats at different levels is given into transcoding and is protected
Deposit.So that in transcoding process, the coded formats at different levels less than target sharpness can be transcoded into video source, then,
The transcoding efficiency of multistage transcoding can be improved.
The present embodiment also discloses a kind of video code conversion device, refer to Fig. 2, and the video code conversion device includes：Video source
Acquisition module 1, object format acquisition module 2 and coding module 3, wherein：
Video source acquisition module 1 is used to obtain video source to be encoded；Object format acquisition module 2 is used to obtain is used for table
Levy the target code form of target sharpness；Coding module 3 is used for from the volume less than the default multistage definition of target sharpness
Step by step video source is encoded to target sharpness coded format in code form.
In an alternate embodiment of the invention, coding module 3 includes：First acquisition unit, for obtaining N-1 levels definition coding
Coding mode information under form；First coding unit, for being believed using the coding mode under N-1 level definition coded formats
Breath carries out the coded format coding of N level definitions to video source, and N is the integer more than 1.
In an alternate embodiment of the invention, coding module 3 includes：Second acquisition unit, for obtaining N-1 levels definition coding
Macro block position and/or motion vector under form；Second coding unit, for according under N-1 level definition coded formats
Macro block position and/or motion vector under the coded format coding of macro block position and/or motion-vector prediction N level definitions, N
It is the integer more than 1.
In an alternate embodiment of the invention, second acquisition unit is additionally operable to the macro block position under N-1 level definition coded formats
The place-centric put carries out N level definition coded formats as the place-centric under N level definitions coded format coding
Macro block position is searched for；And/or, it is additionally operable to the result of the estimation under N-1 level definition coded formats is clear as N levels
Estimation initiating searches point under the coded format coding of clear degree carries out estimation.
Video code conversion device disclosed in the present embodiment, due to obtaining video source to be encoded after, from the coding of low definition
Form to target code form is encoded to video source so that when carrying out target code form to video source and encoding,
The coding of high definition coding form, and the code efficiency phase of low definition coded format can be instructed using low definition
It is high for the code efficiency of fine definition, so as to improve the code efficiency of video source.
In an alternate embodiment of the invention, video source is entered using the coding mode information under N-1 level definition coded formats
The coded format coding of row N level definitions, so as to can effectively be multiplexed upper level definition when this grade of definition is encoded
Pattern information, improve code efficiency.
In an alternate embodiment of the invention, it is pre- according to the macro block position and/or motion vector under N-1 level definition coded formats
The macro block position surveyed under the coded format coding of N level definitions and/or motion vector, thus, it is possible to be based on definition spatial domain
And/or relativity of time domain to instruct this grade of definition coded format under video code conversion, so as to preferably improve video code conversion
Efficiency.
Fig. 3 is that the hardware configuration of the electronic equipment of the processing method of execution list items operation provided in an embodiment of the present invention shows
It is intended to, as shown in figure 3, the equipment includes one or more processors 610 and memorizer 620, with a processor in Fig. 3
As a example by 610.
Performing the equipment of the processing method of list items operation can also include：Input equipment 630 and output device 640.
Processor 610, memorizer 620, input equipment 630 and output device 640 can be by bus or other modes
Connection, in Fig. 3 as a example by being connected by bus.
Processor 610 can be central processing unit (Central Processing Unit, CPU).Processor 610 may be used also
Think other general processors, digital signal processor (Digital Signal Processor, DSP), special IC
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
The chips such as discrete hardware components, or the combination of above-mentioned all kinds of chips.General processor can be microprocessor or the process
Device can also be any conventional processor etc..
Memorizer 620 can be used to storing non-transient software program, non-as a kind of non-transient computer readable storage medium storing program for executing
The corresponding program of processing method of the list items operation in transient computer executable program and module, such as the embodiment of the present application
Instruction/module.Processor 610 is stored in the non-transient software program in memorizer 620, instruction and module by operation, from
And various function application and the data processing of execute server, that is, realize the process side that said method embodiment list items are operated
Method.
Memorizer 620 can include storing program area and storage data field, wherein, storing program area can store operation system
Application program required for system, at least one function；Storage data field can store making for the processing meanss according to list items operation
With data for being created etc..Additionally, memorizer 620 can include high-speed random access memory, non-transient depositing can also be included
Reservoir, for example, at least one disk memory, flush memory device or other non-transient solid-state memories.In some embodiments
In, memorizer 620 is optional including relative to the remotely located memorizer of processor 610, and these remote memories can pass through net
Network is connected to the processing meanss of list items operation.The example of above-mentioned network includes but is not limited to the Internet, intranet, local
Net, mobile radio communication and combinations thereof.
Input equipment 630 can receives input numeral or character information, and produce with list items operation processing meanss
User arrange and function control it is relevant key signals input.Output device 640 may include the display devices such as display screen.
One or more of module stores in the memorizer 620, when by one or more of processors
During 610 execution, method as shown in Figure 1 is performed.
The method that the executable embodiment of the present invention of the said goods is provided, possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, the correlation that specifically can be found in embodiment as shown in Figure 1 is retouched
State.
The embodiment of the present invention additionally provides a kind of non-transient computer storage medium, and the computer-readable storage medium is stored with
Computer executable instructions, the computer executable instructions can perform the place of the list items operation in above-mentioned any means embodiment
Reason method.Wherein, the storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory, ROM), with
Machine storage memory (Random Access Memory, RAM), flash memory (Flash Memory), hard disk (Hard
Disk Drive, abbreviation：) or solid state hard disc (Solid-State Drive, SSD) etc. HDD；The storage medium can also be wrapped
Include the combination of the memorizer of mentioned kind.
Can be logical it will be understood by those skilled in the art that realizing all or part of flow process in above-described embodiment method
Computer program is crossed to instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (ROM) or random access memory (RAM) etc..
Although being described in conjunction with the accompanying embodiments of the invention, those skilled in the art can be without departing from the present invention
Spirit and scope in the case of various modification can be adapted and modification, such modification and modification are each fallen within by claims institute
Within the scope of restriction.
Claims (10)
1. a kind of video transcoding method, it is characterised in that include：
Obtain video source to be encoded；
Obtain the target code form for characterizing target sharpness；
Step by step to the target code form pair from the coded format less than the default multistage definition of the target sharpness
The video source is encoded.
2. video transcoding method as claimed in claim 1, it is characterised in that described from default less than the target sharpness
Carrying out coding to the video source to the target code form step by step in the coded format of multistage definition includes：
Obtain the coding mode information under N-1 level definition coded formats；
The volume of N level definitions is carried out to the video source using the coding mode information under N-1 level definition coded formats
Code said shank, the N is the integer more than 1.
3. video transcoding method as claimed in claim 2, it is characterised in that the coding mode information includes：Frame type is determined
Any one in plan and mode decision or combination.
4. the video transcoding method as described in claim 1-3 any one, it is characterised in that described from clear less than the target
Step by step coding bag is carried out to the video source to the target code form in the clear coded format for spending default multistage definition
Include：
Obtain the macro block position and/or motion vector under N-1 level definition coded formats；
According to the macro block position under N-1 level definition coded formats and/or the coding lattice of motion-vector prediction N level definitions
Macro block position and/or motion vector under formula coding, the N is the integer more than 1.
5. video transcoding method as claimed in claim 4, it is characterised in that
Under the coded format coding of the macro block position prediction N level definitions under the level definition coded format according to N-1
Macro block position include：Compile the place-centric of the macro block position under N-1 level definition coded formats as N levels definition
Place-centric under code said shank carries out the macro block position search of N level definition coded formats；And/or,
Under the coded format coding of the motion-vector prediction N level definitions under the level definition coded format according to N-1
Motion vector include：Using the result of the estimation under N-1 level definition coded formats as N level definitions coding
Estimation initiating searches point under said shank carries out estimation.
6. a kind of video code conversion device, it is characterised in that include：
Video source acquisition module, for obtaining video source to be encoded；
Object format acquisition module, for obtaining the target code form for characterizing target sharpness；
Coding module, for from less than the default multistage definition of the target sharpness coded format in step by step to the mesh
Mark coded format is encoded to the video source.
7. video code conversion device as claimed in claim 6, it is characterised in that the coding module includes：
First acquisition unit, for the coding mode information under acquisition N-1 level definition coded formats；
First coding unit, for being entered to the video source using the coding mode information under N-1 level definition coded formats
The coded format coding of row N level definitions, the N is the integer more than 1.
8. video code conversion device as claimed in claim 6, it is characterised in that the coding module includes：
Second acquisition unit, for macro block position and/or motion vector under acquisition N-1 level definition coded formats；
Second coding unit, for according to the macro block position and/or motion-vector prediction under N-1 level definition coded formats
Macro block position and/or motion vector under the coded format coding of N level definitions, the N is the integer more than 1.
9. video code conversion device as claimed in claim 8, it is characterised in that
The second acquisition unit is additionally operable to the place-centric of the macro block position under N-1 level definition coded formats as
Place-centric under N level definitions coded format coding carries out the macro block position search of N level definition coded formats；And/or,
Be additionally operable to using the result of the estimation under N-1 level definition coded formats as N level definitions coded format
Estimation initiating searches point under coding carries out estimation.
10. a kind of video code conversion system, it is characterised in that include：
Video source reception device, for receiving video source to be encoded；
At least one processor；And
The memorizer being connected with least one processor communication；Wherein, have can be by described at least one for the memory storage
The instruction of individual computing device, the instruction is by least one computing device, so that at least one processor is held
Video transcoding method any one of row claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105288.4A CN106658059A (en) | 2016-12-05 | 2016-12-05 | Video transcoding method, device and system |
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| CN201611105288.4A CN106658059A (en) | 2016-12-05 | 2016-12-05 | Video transcoding method, device and system |
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| CN110418197A (en) * | 2018-05-11 | 2019-11-05 | 腾讯科技（深圳）有限公司 | A kind of video transcoding method, device and computer readable storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418197A (en) * | 2018-05-11 | 2019-11-05 | 腾讯科技（深圳）有限公司 | A kind of video transcoding method, device and computer readable storage medium |
| CN110418197B (en) * | 2018-05-11 | 2022-03-08 | 腾讯科技（深圳）有限公司 | Video transcoding method and device and computer readable storage medium |
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