CN106982374A - A kind of SPICE video transmission methods and device based on HEVC optimized algorithms - Google Patents
A kind of SPICE video transmission methods and device based on HEVC optimized algorithms Download PDFInfo
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- CN106982374A CN106982374A CN201710192917.XA CN201710192917A CN106982374A CN 106982374 A CN106982374 A CN 106982374A CN 201710192917 A CN201710192917 A CN 201710192917A CN 106982374 A CN106982374 A CN 106982374A
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- spice
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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
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
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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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
Abstract
The present invention provides a kind of SPICE video transmission methods based on HEVC optimized algorithms, and this method comprises the following steps：SPICE service ends are disposed in server end to receive image and video, optimization HEVC inter predictions to realize the HEVC optimized algorithms and realize video compress using HEVC optimized algorithms.The present invention also provides a kind of SPICE video frequency transmitters based on HEVC optimized algorithms.The present invention has the advantages that compression efficiency height, transmission rate are fast.
Description
Technical field
The present invention relates to field of video transmission, and relate more specifically to a kind of SPICE based on HEVC optimized algorithms and regard
Keep pouring in transmission method and device.
Background technology
HEVC (high efficiency Video coding) is a kind of video encoding standard that joint video team was newly proposed in 2010, mainly
Solve high definition, the problem of ultra high-definition video occupied bandwidth in network transmission is more, transmission time is longer.Regarded compared to previous generation
H.264, HEVC can be on the basis of superperformance be kept, and compression efficiency improves 50%, and can support for frequency compression algorithm
Resolution ratio reach 7980 × 4320.But corresponding encoder complexity also improves 2~10 times, it is therefore desirable to HEVC algorithms
Optimize, to reduce encoder complexity, reduction scramble time.
SPICE (independent computation environment simple protocol) is a kind of typical cloud desktop transmission method, with adaptive ability
Remote visiting system agreement, can allow for user's RAS to obtain good local experience, may operate in simultaneously
In different operating system.User can not be accessed desktop by time, place and equipment limit.SPICE directly from
In the device maps such as display, input and output to SPICE protocol in Hypervisor (virtual machine management program), independent of client
Machine network support, it is therefore desirable to which the higher display result of quality is compressed and transmitted.Meanwhile, SPICE protocol can be in user circle
Face occurs to be handled it as video pictures during quick change, so the transmission performance of video directly affects SPICE associations
The effect of view.SPICE transmission of video applies MJPEG (motor rest compression of images) technology.He utilizes Static Picture Compression
Technology is compressed to video, is widely used in non-linear editing field.But MJPEG using video as at independent image
Reason, only have compressed the spatial redundancy of frame in, frame-to-frame correlation stronger in video is handled, therefore with HEVC phases
Than compression efficiency is not high.
The content of the invention
For above-mentioned problems of the prior art, HEVC optimized algorithms are based on it is an object of the invention to provide one kind
SPICE video transmission methods and device, HEVC algorithms are optimized, while replacing MJPEG using the HEVC algorithms of optimization
Technology reaches the purpose that video compression efficiency is high, transmission rate is fast in SPICE transmission to realize SPICE transmission of video.
According to the present invention there is provided a kind of SPICE video transmission methods based on HEVC optimized algorithms, comprise the following steps：
Step S101：Dispose SPICE service ends to receive image and video in server end；
Step S102：Optimize HEVC inter predictions to realize the HEVC optimized algorithms；
Step S103：Video compress and video decompression are realized using the HEVC optimized algorithms.
Further, the MJPEG skills that SPICE is substituted using HEVC optimized algorithms are further comprised before step S103
Art.
Further, HEVC optimized algorithms include HEVC encoder optimized algorithms and HEVC decoder algorithms.
Further, HEVC optimized algorithms comprise the following steps：
Step S201：Judge present frame, if present frame is I frames, normal encoding mode is used to I frames, if present frame is P
Frame, then proceed to step S202；
Step S202：Judge the current LCU of P frames same position LCU (i.e. col-LCU) depth Dcol-LCUWith col-LCU's
The relation of time-space domain LCU depth.If Dcol-LCUDepth with col-LCU time-space domain LCU is inconsistent, then P frames is carried out just
Often encode；If Dcol-LCUIt is consistent with col-LCU time-space domain LCU depth, then proceed to step S203；
Step S203：If Dcol-LCUFor definite value, then directly by current LCU depth DLCUIt is divided into Dcol-LCU；If Dcol-LCUFor
Non- definite value, then proceed to step S204；
Step S204：If Dcol-LCURespectively less than 2, by DLCU0 or 1 is divided into, and calculates RDO values；If Dcol-LCUMore than etc.
In 2, then by DLCU2 or 3 are divided into, and calculates RDO values, so far, quickly judges that LCU optimum depth is pre- to obtain optimal interframe
Survey pattern.
Further, DLCUInclude 0,1,2 and 3.
According to the present invention, a kind of SPICE video frequency transmitters based on HEVC optimized algorithms are also provided, the device includes：
Dispose SPICE service ends to receive the device of image or video in server end；
Optimize HEVC inter predictions to realize the device of HEVC optimized algorithms；
Using HEVC optimized algorithms to realize the device of video compress and video decompression.
Further, realize that the device of HEVC optimized algorithms includes the device and reality for realizing HEVC encoder optimized algorithms
The device of existing HEVC decoder algorithms.
Further, HEVC optimized algorithms comprise the following steps：
Step S301：Judge present frame, if present frame is I frames, normal encoding mode is used to I frames, if present frame is P
Frame, then proceed to step S302；
Step S302：Judge the current LCU of P frames same position LCU (i.e. col-LCU) depth Dcol-LCUWith col-LCU's
The relation of time-space domain LCU depth.If Dcol-LCUDepth with col-LCU time-space domain LCU is inconsistent, then P frames is carried out just
Often encode；If Dcol-LCUIt is consistent with col-LCU time-space domain LCU depth, then proceed to step S303；
Step S303：If Dcol-LCUFor definite value, then directly by current LCU depth DLCUIt is divided into Dcol-LCU；If Dcol-LCUFor
Non- definite value, then proceed to step S304；
Step S304：If Dcol-LCURespectively less than 2, by DLCU0 or 1 is divided into, and calculates RDO values；If Dcol-LCUMore than etc.
In 2, then by DLCU2 or 3 are divided into, and calculates RDO values.
Further, DLCUInclude 0,1,2 and 3.
According to the present invention, a kind of computer-readable recording medium is also provided, computer program (instruction) is stored thereon with, used
In SPICE transmission of video of the realization based on HEVC optimized algorithms, wherein, realize and be based on when program (instruction) is executed by processor
The step of SPICE video transmission methods of HEVC optimized algorithms.
By being optimized to HEVC algorithms, while being substituted using the HEVC algorithms of optimization in SPICE transmission of video
MJPEG technologies, to realize the fast purpose of video compression efficiency height, transmission rate in SPICE transmission.
Brief description of the drawings
Fig. 1 is the flow chart of the HEVC optimized algorithms according to one embodiment of the present of invention；
Fig. 2 is the SPICE transmission of video flow figures based on HEVC optimized algorithms according to an alternative embodiment of the invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings, the present invention is entered
Row is further described.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The present invention.
For HEVC algorithms, prediction account for for 70% time in HEVC.Prediction is divided into inter prediction and infra-frame prediction again, if
Present frame is I frames (intracoded frame), then using infra-frame prediction mode；If present frame is P frames (forward-predictive-coded frames), adopt
Use inter prediction mode.In single video, P frames are about 80%, so the quick prognostic chart picture for obtaining P frames, reduces HEVC
The complexity of inter prediction, can greatly reduce the scramble time.HEVC inter predictions need to carry out depth to its coding unit (LCU)
Divide, respectively obtain predictive mode, realize prognostic chart picture.And the present invention is divided according to LCU and its adjacent block coding unit depth
For motion intense area and motion flat zone, distinct methods are used to different zones, it is quick to divide LCU depth, so as to try to achieve optimal
Predetermined depth, obtains optimum prediction mode, quickly obtains prognostic chart picture.
Fig. 1 shows the flow chart of HEVC optimized algorithms according to an embodiment of the invention.As shown in figure 1, first
Whether be P frame, if present frame is not P frames if judging present frame, HEVC normal encoding modes are used to present frame, if
Present frame is P frames, then algorithm will determine that current LCU same position LCU (i.e. col-LCU) depth Dcol-LCUWith col-LCU when
Whether spatial domain LCU depth is consistent (i other words the time domain of present frame faces block LCU depth with position LCU (col-LCU) and its time-space domain
Whether degree is consistent), if Dcol-LCUDepth with col-LCU time-space domain LCU is inconsistent, then normal using HEVC to present frame
Coded system, if Dcol-LCUConsistent with col-LCU time-space domain LCU depth, then algorithm will determine that Dcol-LCUWith col-LCU's
Whether time-space domain LCU depth is equal, if Dcol-LCUWith col-LCU time-space domain LCU deep equality, then show col-
LCU depth is definite value, i.e. Dcol-LCUFor definite value, then directly by current LCU depth (DLCU) it is divided into Dcol-LCUIf,
Dcol-LCUIt is unequal and depth of time-space domain LCU is respectively less than 2 (i.e. D with col-LCU time-space domain LCU depthcol-LCU<2),
Then by DLCU0 or 1 is divided into, and calculates RDO (rate-distortion optimization) value；If Dcol-LCUWith col-LCU time-space domain LCU depth
Unequal and time-space domain LCU the depth of degree is not less than 2 (i.e. Dcol-LCU>=2), then by DLCU2 or 3 are divided into, and calculates RDO
Value.It is well known that, DLCUValue include 0,1,2 and 3.Thus it is quick to judge LCU optimum depths, and then try to achieve optimum prediction mode,
To realize HEVC encoder optimized algorithm.
Fig. 2 shows the SPICE video transmission streams based on HEVC optimized algorithms according to another embodiment of the invention
Cheng Tu.First, virtual machine, SPICE service ends and HEVC encoder optimized algorithms are disposed in home server, in client computer
Dispose SPICE clients and HEVC decoder algorithms.Then, SPICE service ends receive video from virtual machine, utilize HEVC
Encoder optimized algorithms are compressed to the video received and by the transmission of video after overcompression to SPICE clients；Connect
, SPICE clients are received after the video from SPICE service ends, using HEVC decoder algorithms to regarding for receiving
Frequency is decompressed, so as to realize the SPICE transmission of video based on HEVC optimized algorithms.
On process described here, system, method etc., it should be understood that although the step of such process etc. is described as
Arrangement occurs in a certain order, but such process can be used with retouching that the order outside order described herein is completed
The step of stating implements operation.Further it is appreciated that some steps can be performed simultaneously, other steps can be added, or
Person can omit some steps described here.In other words, the description of process here, which is provided, is used to illustrate some embodiments
Purpose, and should not be construed in any way as limitation claimed invention.
Correspondingly, it should be understood that the purpose of above description illustrates rather than limitation.When reading above description,
Many embodiments and application will be apparent from addition to the example of offer.The scope of the present invention should refer to appended claims
And the four corner equivalent with right required by claim and determine, rather than determined with reference to explanation above.Can
To be contemplated that field discussed herein will appear from further development, and disclosed system and method can be combined
Into such following embodiment.In a word, it should be understood that the present invention can be modified and change.
It is to be further understood that any described process or it is described during the step of can with other disclosed processes or
Step combines to form the structure in the range of the disclosure.Example arrangement and process disclosed herein be for illustrative purposes,
And it is not necessarily to be construed as limitation.
Claims (10)
1. a kind of SPICE video transmission methods based on HEVC optimized algorithms, it is characterised in that methods described includes following step
Suddenly：
Step S101：Dispose SPICE service ends to receive image and video in server end；
Step S102：Optimize HEVC inter predictions to realize the HEVC optimized algorithms；
Step S103：Video compress and video decompression are realized using the HEVC optimized algorithms.
2. the SPICE video transmission methods according to claim 1 based on HEVC optimized algorithms, it is characterised in that in institute
Further comprise the MJPEG technologies that SPICE is substituted using the HEVC optimized algorithms before stating step S103.
3. the SPICE video transmission methods according to claim 1 based on HEVC optimized algorithms, it is characterised in that described
HEVC optimized algorithms include HEVC encoder optimized algorithms and HEVC decoder algorithms.
4. the SPICE video transmission methods according to claim 1 based on HEVC optimized algorithms, it is characterised in that described
HEVC optimized algorithms comprise the following steps：
Step S201：Judge present frame, if the present frame is I frames, normal encoding mode is used to the I frames, if described
Present frame is P frames, then proceeds to step S202；
Step S202：Judge the current LCU of the P frames same position LCU (i.e. col-LCU) depth Dcol-LCUWith the col-LCU
Time-space domain LCU depth relation.If the Dcol-LCUDepth with the time-space domain LCU of the col-LCU is inconsistent, then right
The P frames carry out normal encoding；If the Dcol-LCUIt is consistent with the time-space domain LCU depth of the col-LCU, then proceed to step
S203；
Step S203：If the Dcol-LCUFor definite value, then directly by current LCU depth DLCUIt is divided into Dcol-LCU；If described
Dcol-LCUFor non-definite value, then step S204 is proceeded to；
Step S204：If the Dcol-LCURespectively less than 2, by the DLCU0 or 1 is divided into, and calculates RDO values；If described
Dcol-LCUMore than or equal to 2, then by the DLCU2 or 3 are divided into, and calculates the RDO values, so far, quickly judges the LCU's
Optimum depth is to obtain optimal inter-frame forecast mode.
5. the SPICE video transmission methods according to claim 4 based on HEVC optimized algorithms, it is characterised in that described
DLCUInclude 0,1,2 and 3.
6. a kind of SPICE video frequency transmitters based on HEVC optimized algorithms, it is characterised in that described device includes：
Dispose SPICE service ends to receive the device of image or video in server end；
Optimize HEVC inter predictions to realize the device of the HEVC optimized algorithms；
Using the HEVC optimized algorithms to realize the device of video compress and video decompression.
7. the SPICE video frequency transmitters according to claim 6 based on HEVC optimized algorithms, it is characterised in that realize
The device of the HEVC optimized algorithms includes the device for realizing HEVC encoder optimized algorithms and realizes that HEVC decoder are calculated
The device of method.
8. the SPICE video frequency transmitters according to claim 6 based on HEVC optimized algorithms, it is characterised in that described
HEVC optimized algorithms comprise the following steps：
Step S301：Judge present frame, if the present frame is I frames, normal encoding mode is used to the I frames, if described
Present frame is P frames, then proceeds to step S302；
Step S302：Judge the current LCU of the P frames same position LCU (i.e. col-LCU) depth Dcol-LCUWith the col-LCU
Time-space domain LCU depth relation.If the Dcol-LCUDepth with the time-space domain LCU of the col-LCU is inconsistent, then right
The P frames carry out normal encoding；If the Dcol-LCUIt is consistent with the time-space domain LCU depth of the col-LCU, then proceed to step
S303；
Step S303：If the Dcol-LCUFor definite value, then directly by current LCU depth DLCUIt is divided into Dcol-LCU；If described
Dcol-LCUFor non-definite value, then step S304 is proceeded to；
Step S304：If the Dcol-LCURespectively less than 2, by the DLCU0 or 1 is divided into, and calculates RDO values；If described
Dcol-LCUMore than or equal to 2, then by the DLCU2 or 3 are divided into, and calculates the RDO values.
9. the SPICE video frequency transmitters according to claim 8 based on HEVC optimized algorithms, it is characterised in that described
DLCUInclude 0,1,2 and 3.
10. a kind of computer-readable recording medium, is stored thereon with computer program (instruction), for realizing based on HEVC optimizations
The SPICE transmission of video of algorithm, it is characterised in that described program (instruction) is realized described in claim 1 when being executed by processor
Method the step of.
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Cited By (1)
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| CN108989845A (en) * | 2018-07-03 | 2018-12-11 | 凯尔博特信息科技（昆山）有限公司 | A kind of video transmission method based on SPICE protocol |
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Application publication date: 20170725 |