CN109862362A - A kind of MPEG2 coding method, system, medium and the equipment of video - Google Patents
A kind of MPEG2 coding method, system, medium and the equipment of video Download PDFInfo
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Abstract
This application discloses a kind of MPEG2 coding methods of video, comprising: pre-processes to target video, obtains the yuv picture frame of target video；First encoding is carried out to yuv picture frame using hardware coder, obtains coding log；Secondary coding is carried out to yuv picture frame using coding log, to obtain the target video of MPEG2 coding.In this application, during carrying out MPEG2 coding to target video, it is the process for replacing carrying out the yuv image of target video using the method for Software Coding in the prior art first encoding using hardware coder, it is possible thereby to when reducing to target video progress MPEG2 coding, to the occupancy of CPU and memory, to improve code efficiency when carrying out MPEG2 coding to target video.In addition, disclosed herein as well is MPEG2 coded system, medium and the equipment of a kind of video, equally there is above-mentioned beneficial effect.
Description
Technical field
The present invention relates to technical field of video processing, in particular to the MPEG2 coding method of a kind of video, system, medium
And equipment.
Background technique
In order to meet the needs to moving image and other audio codings, especially deposited in Digital Media, DTV
The demand of the application fields such as storage and transmission, has formulated the coding method in relation to live image and related sound, that is, MPEG2
(Moving Picture Experts Group, Motion Picture Experts Group).Because MPEG2 specific definition compressed data is being deposited
Syntactic structure in storage and transmission, also, define only the decoding process to MPEG2 compressed data.MPEG2 flexibility and changeability takes
Spline structure, Group Of Pictures length and code rate can satisfy from every field such as signal acquisition, transmission, production, storage, broadcast and distribution
A variety of demands, this flexibility just because of MPEG2 makes it and is best suited for the compress mode of network.
In the prior art, it can generally be encoded by the way of secondary coding to carry out MPEG2 to video, and
And in order to keep higher transcoded quality, encoded all by the way of Software Coding twice.But utilize the side of Software Coding
When method encodes to carry out MPEG2 to video, a large amount of CPU and memory can be occupied, target video is carried out to reduce
Code efficiency when MPEG2 is encoded.It can be seen that a kind of better coding method how to be provided to carry out MPEG2 volume to video
Code to reduce the occupancy to CPU and memory, and improves code efficiency when carrying out MPEG2 coding to target video, is this field
Technical staff's urgent problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide MPEG2 coding method, system, medium and the equipment of a kind of video,
To reduce the occupancy to CPU and memory, and improve code efficiency when carrying out MPEG2 coding to target video.Its concrete scheme
It is as follows:
To achieve the above object, the present invention provides a kind of MPEG2 coding methods of video, comprising:
Target video is pre-processed, the yuv picture frame of the target video is obtained；
First encoding is carried out to the yuv picture frame using hardware coder, obtains coding log；
Secondary coding is carried out to the yuv picture frame using the coding log, to obtain the target of MPEG2 coding
Video.
Preferably, described that target video is pre-processed, the process of the yuv picture frame of the target video is obtained, is wrapped
It includes:
The target video is decapsulated using transcoder, obtains the first es stream；
The first es stream is decoded, the yuv picture frame of the target video is obtained.
Preferably, described that the target video is decapsulated using transcoder, obtain the process of the first es stream, packet
It includes:
The target video is decapsulated using ffmpeg, obtains the first es stream.
Preferably, described that first encoding is carried out to the yuv picture frame using hardware coder, obtain the mistake of coding log
Journey, comprising:
The first encoding is carried out to the yuv picture frame using the hardware coder；
Judge whether all yuv picture frames in the yuv picture frame carry out the first encoding；
If it is not, then execute again it is described target video is pre-processed, obtain the yuv picture frame of the target video
Step；If so, obtaining the coding log.
Preferably, described that secondary coding is carried out to the yuv picture frame using the coding log, to obtain MPEG2 volume
The process of the target video of code, comprising:
The secondary coding is carried out to the yuv picture frame using the coding log；
Judge whether all yuv picture frames in the yuv picture frame carry out the secondary coding；
If it is not, then executing described the step of carrying out secondary coding to the yuv picture frame using the coding log again；
If so, obtaining the 2nd es stream, and the 2nd es stream is packaged, to obtain the target video of MPEG2 coding.
Preferably, described that first encoding is carried out to the yuv picture frame using hardware coder, obtain the mistake of coding log
Journey, comprising:
The first encoding is carried out to the yuv picture frame using FPGA, obtains the coding log.
Preferably, described that first encoding is carried out to the yuv picture frame using hardware coder, obtain the mistake of coding log
Journey, comprising:
The first encoding is carried out to the yuv picture frame using the QSV hardware coder of Intel, obtains the coding
Log.
To achieve the above object, invention further provides a kind of MPEG2 coded systems of video, comprising:
Pretreatment unit obtains the yuv picture frame of the target video for pre-processing to target video；
Log acquisition unit obtains coding day for carrying out first encoding to the yuv picture frame using hardware coder
Will；
Video encoding unit, for carrying out secondary coding to the yuv picture frame using the coding log, to obtain
The target video of MPEG2 coding.
To achieve the above object, invention further provides a kind of computer readable storage mediums, and the computer can
The program that the MPEG2 coding method of video is stored on storage medium is read, the program of the MPEG2 coding method of the video can quilt
The step of one or more processor executes, MPEG2 coding method to realize video as the aforementioned.
To achieve the above object, invention further provides a kind of MPEG2 encoding device of video, the equipment includes
Memory and processor are stored with the MPEG2 coding method for the video that can be run on the processor on the memory
The program of program, the MPEG2 coding method of the video realizes the MPEG2 coding staff of video as the aforementioned when being executed by processor
The step of method.
As it can be seen that when carrying out MPEG2 coding to target video, pre-processed to target video first in the present invention,
The yuv picture frame of target video is obtained, then, carries out first encoding using yuv picture frame of the hardware coder to target video,
Coding log is obtained, finally, secondary coding is carried out using yuv picture frame of the coding log to target video, to obtain MPEG2 volume
The target video of code.In the present embodiment, it is pre-processed to target video, after obtaining the yuv picture frame of target video,
It is to replace carrying out one using yuv image of the method for Software Coding to target video in the prior art using hardware coder
The process of secondary coding, it is possible thereby to when reducing to target video progress MPEG2 coding, to the occupancy of CPU and memory, to mention
High code efficiency when carrying out MPEG2 coding to target video.Correspondingly, a kind of MPEG2 of video disclosed by the invention is compiled
Code system, medium and equipment, equally have above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the MPEG2 coding method of video provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the MPEG2 coding method of another video provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of the MPEG2 coded system of video provided in an embodiment of the present invention；
Fig. 4 is a kind of structure chart of the MPEG2 encoding device of video provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
It should be noted that the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot
It is interpreted as its relative importance of indication or suggestion or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
Will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not the present invention claims
Protection scope within.
The present invention provides a kind of MPEG2 coding methods of video.
Referring to Fig.1, Fig. 1 is that the present invention implements a kind of disclosed flow chart of the MPEG2 coding method of video.This method packet
It includes:
Step S10: pre-processing target video, obtains the yuv picture frame of target video；
It is understood that including a large amount of data information in target video, MPEG2 coding is being carried out to target video
In the process, it needs to resolve into target video into picture frame one by one, MPEG2 coding could be carried out to target video.
The purpose of step S10 is intended to pre-process target video, obtains the yuv picture frame of target video.Specifically,
It is to be decapsulated to target video first, obtains the first es stream, then, then the first es stream is decoded, the first es is flowed
Resolve into yuv picture frame one by one.
Step S11: first encoding is carried out to yuv picture frame using hardware coder, obtains coding log；
It should be noted that hardware coder is the hardware tools for referring to be decoded target video.It is understood that
, replace the encoding and decoding of software to work by the execution logic inside hardware tools, so that it may by CPU from heavy video
It is released in encoding and decoding work, and thus reduces the occupancy to CPU and memory.
Specifically, in the present embodiment, code efficiency when MPEG2 coding being carried out to target video in order to improve, is benefit
First encoding is carried out to yuv picture frame with hardware coder.When using hardware coder to yuv picture frame carry out first encoding
When, corresponding encoded information will be obtained, that is, coding log.It is also contemplated that can include yuv in coding log
The information of information and each macro block in picture frame in each frame yuv picture frame, then, yuv is schemed using coding log
As carrying out secondary coding, so that it may improve coding quality when carrying out MPEG2 coding to target video.
It should be noted that in the present embodiment, hardware coder is either can write the monolithic of function with logic
Machine is also possible to the QSV hardware coder with video decoding function, and herein, the type of hardware coder is not made specifically
It limits.
Step S12: carrying out secondary coding to yuv picture frame using coding log, to obtain the target view of MPEG2 coding
Frequently.
It in the present embodiment, is to yuv picture frame using the side encoded twice in order to generate the higher encoded video of quality
Formula, that is, after obtaining coding log, and utilizing coding log to yuv picture frame carrying out first encoding to yuv picture frame
Secondary coding has been carried out, has come to carry out MPEG2 coding to target video with this.Specifically, when having carried out secondary volume to yuv picture frame
Code obtains the 2nd es stream and then is packaged to the 2nd es stream, just completes and carry out the encoded of MPEG2 to target video
Journey.
It is worth noting that, carrying out first encoding to yuv picture frame, and the encoded information of first encoding is converted into volume
During code log, decoding yuv picture frame is not needed, also, do not need to be packaged the first es stream yet, is utilizing coding
It is directly to be carried out at secondary coding to the yuv picture frame of target video during log carries out secondary coding to yuv picture frame
Reason, thus one, so that it may be further reduced the calculation amount carried out in MPEG2 cataloged procedure to target video, and thus may be used
To greatly improve the code efficiency for carrying out MPEG2 coding to target video.
As it can be seen that when carrying out MPEG2 coding to target video, being located in advance to target video first in the present embodiment
Reason, is obtained the yuv picture frame of target video, then, is once compiled using yuv picture frame of the hardware coder to target video
Code obtains coding log, finally, secondary coding is carried out using yuv picture frame of the coding log to target video, to regard to target
Frequency carries out MPEG2 coding.In the present embodiment, pre-processed to target video, obtain target video yuv picture frame it
It afterwards, is to replace utilizing software in the prior art using hardware coder during carrying out MPEG2 coding to target video
The method of coding carries out the process of first encoding to the yuv image of target video, carries out it is possible thereby to reduce to target video
When MPEG2 is encoded, to the occupancy of CPU and memory, to improve coding effect when carrying out MPEG2 coding to target video
Rate.
On the basis of the above embodiments, the present invention also provides a series of preferred embodiments.
As a preferred embodiment, above-mentioned steps S10: being pre-processed to target video, obtain target video
Yuv picture frame process, comprising:
Target video is decapsulated using transcoder, obtains the first es stream；
First es stream is decoded, the yuv picture frame of target video is obtained.
The purpose of the present embodiment is intended to illustrate how to obtain the yuv picture frame of target video.Specifically, in the present embodiment
In, it is to be decapsulated using transcoder to target video first, obtains the first es stream, then, the first es stream is decoded,
Obtain the yuv picture frame of target video.
In practical application, transcoder can be storm wind transcoder, can also with leopard cat nest transcoder or other have
The transcoding tool of transcoding function is in the present embodiment not especially limited the type of transcoder, as long as can reach to mesh
The purpose that mark video is decapsulated.
Specifically, above-mentioned steps: being decapsulated using transcoder to target video, obtain the process of the first es stream, packet
It includes:
Target video is decapsulated using ffmpeg, obtains the first es stream.
It in the present embodiment, is to be decapsulated using open source computer program ffmpeg to target video, because of open source
Computer program can not only reduce the development cost that MPEG2 coding is carried out to target video, furthermore, it is also possible to reduce designer
Coding work of the member when decapsulating to target video, thus substantially increases the working efficiency of designer.
In addition, open source computer program ffmpeg additionally provides recording, conversion and the complete solution party for fluidizing audio-video
Case, also, leading audio/video encoding and decoding library libavcodec, institute are also embedded in open source computer program ffmpeg
To carry out MPEG2 coding to target video using open source computer program ffmpeg, can also be further ensured that target video
Carry out the coding quality of MPEG2 coding.
It is the flow chart for the MPEG2 coding method that the present invention implements disclosed another video referring to Fig. 2, Fig. 2.As one
Kind preferred embodiment, above-mentioned steps S11: carrying out first encoding using yuv picture frame of the hardware coder to target video,
Obtain the process of coding log, comprising:
Step S111: first encoding is carried out to yuv picture frame using hardware coder；
Step S112: judge whether all yuv picture frames in yuv picture frame carry out first encoding；
Step S113: pre-processing target video if it is not, then executing again, obtains the yuv picture frame of target video
The step of；If so, obtaining coding log.
It is understood that if hardware coder does not compile all yuv picture frames in yuv picture frame once
Code, the encoded information that will lead to yuv image first encoding in coding log is imperfect, if the encoded information in coding log
It is imperfect, then, using the coding log to yuv picture frame carry out secondary coding when, will because of the missing of encoded information, and
Reduce coding quality of the target video when carrying out MPEG2.
It in the present embodiment, is that one is carried out to yuv picture frame using hardware coder in order to avoid the generation of this case
After secondary coding, also further judge whether all yuv picture frames in yuv picture frame have all carried out first encoding, if
All yuv picture frames in yuv picture frame have all carried out first encoding, will make the coding for encoding the first encoding in log
Information more comprehensively and completely, thus can further increase coding quality when carrying out MPEG2 to target video.If
Not all yuv picture frame all carries out first encoding in yuv picture frame, at this point, in order to encode encoded information in log
Integrality with it is comprehensive, can continue to execute and target video is pre-processed, obtain the step of the yuv picture frame of target video
Suddenly, when until all carrying out first encoding to all yuv picture frames in yuv picture frame, terminate the process step, so,
It can obtain that encoded information is more complete, comprehensively encodes log.Obviously, through this embodiment in method, it is ensured that
The integrality of encoded information and comprehensive is encoded in log, and it is possible thereby to improves the volume to target video progress MPEG2 coding
Code quality.
As a preferred embodiment, above-mentioned steps S12: carrying out secondary volume to yuv picture frame using coding log
Code, to carry out the process of MPEG2 coding to target video, comprising:
Step S121: secondary coding is carried out to yuv picture frame using coding log；
Step S122: judge whether all yuv picture frames in yuv picture frame carry out secondary coding；
Step S123: if it is not, then executing the step of carrying out secondary coding to yuv picture frame using coding log again；If
It is then to obtain the 2nd es stream, and be packaged to the 2nd es stream, to obtain the target video of MPEG2 coding.
It is understood that needing to guarantee the coding quality for carrying out MPEG2 coding to target video to yuv image
All yuv picture frames in frame carry out secondary coding, if missed out during carrying out secondary coding to yuv picture frame
When a certain frame yuv picture frame or a few frame yuv picture frames, coding matter of the target video when carrying out MPEG2 will be reduced
Amount.
It in the present embodiment, is that two are being carried out to yuv picture frame using coding log in order to avoid the generation of this case
After secondary coding, also further judge whether all yuv picture frames in yuv picture frame have all carried out secondary coding, if
It is not then to execute the step of secondary coding is carried out to yuv picture frame using coding log again, until in yuv picture frame
When all yuv picture frames carry out secondary coding, terminate the process step.Specifically, scheming when to all yuv in yuv picture frame
When all having carried out secondary coding as frame, the 2nd es stream can be obtained, at this point, being packaged to the 2nd es stream, so that it may obtain MPEG2
The target video of coded format.Obviously, through this embodiment in method, can to avoid using coding aim at day to yuv image
Frame carry out secondary coding during scarce frame and leakage frame the case where, thus further ensure to target video carry out MPEG2 volume
The quality of code.
As a preferred embodiment, above-mentioned steps S11: using hardware coder to the yuv image of target video
Frame carries out first encoding, obtains the process of coding log, comprising:
First encoding is carried out using yuv picture frame of the FPGA to target video, obtains coding log.
It is understood that FPGA (Field-Programmable Gate Array, field programmable gate array)
It is a kind of programmable logic device, designer can add different function according to the needs of actual conditions inside FPGA
Logic module, or in advance will be in the burning program to FPGA that write, so that it may so that FPGA is realized to yuv picture frame
Carry out the function of first encoding.The content that this process is well known to those skilled in the art does not repeat specifically herein.In addition,
In practical application, FPGA can also be replaced with dsp chip (Digital Signal Processing) or its
It has the logical device for writing function.
As a preferred embodiment, specifically, above-mentioned steps S11: using hardware coder to target video
Yuv picture frame carries out first encoding, obtains the process of coding log, comprising:
First encoding is carried out to yuv picture frame using the QSV hardware coder of Intel, obtains coding log.
It should be noted that QSV (Quick Sync Video) hardware coder of Intel is that Intel Company provides
A kind of encoder with video code conversion function, in QSV hardware coder, Intel strengthens the computing capability of core video card
And support to video code conversion is increased, the time to video code conversion is shortened, so, it is to utilize in the present embodiment
The QSV hardware coder of Intel to carry out yuv picture frame first encoding, and carries out MPEG2 to target video to improve with this
The code efficiency of coding.
In addition, staff carries out the process of first encoding in the QSV hardware coder using Intel to yuv picture frame
In, it does additional work of designing and developing again without staff, so, the work effect of staff not only can be improved
Rate is experienced furthermore, it is also possible to further increase work of the staff when carrying out first encoding to yuv picture frame.
It is a kind of MPEG2 coded system of video provided in an embodiment of the present invention referring to Fig. 3, Fig. 3.The system includes:
Pretreatment unit obtains the yuv picture frame of target video for pre-processing to target video；
Log acquisition unit obtains coding log for carrying out first encoding to yuv picture frame using hardware coder；
Video encoding unit, for carrying out secondary coding to yuv picture frame using coding log, to obtain MPEG2 coding
Target video.
Correspondingly, the embodiment of the invention also discloses a kind of computer readable storage medium, computer readable storage medium
On be stored with video MPEG2 coding method program, the program of the MPEG2 coding method of video can be by one or more
It manages device to execute, the step of MPEG2 coding method to realize video as the aforementioned.
It is a kind of MPEG2 encoding device of video provided in an embodiment of the present invention referring to Fig. 4, Fig. 4, which includes storage
Device and processor are stored with the program of the MPEG2 coding method for the video that can be run on a processor on memory, video
The program of MPEG2 coding method realizes the step of MPEG2 coding method of video as the aforementioned when being executed by processor.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It should be noted that the serial number of the above embodiments of the invention is only for description, do not represent the advantages or disadvantages of the embodiments.And
The terms "include", "comprise" herein or any other variant thereof is intended to cover non-exclusive inclusion, so that packet
Process, device, article or the method for including a series of elements not only include those elements, but also including being not explicitly listed
Other element, or further include for this process, device, article or the intrinsic element of method.Do not limiting more
In the case where, the element that is limited by sentence "including a ...", it is not excluded that including process, device, the article of the element
Or there is also other identical elements in method.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of MPEG2 coding method of video characterized by comprising
Target video is pre-processed, the yuv picture frame of the target video is obtained；
First encoding is carried out to the yuv picture frame using hardware coder, obtains coding log；
Secondary coding is carried out to the yuv picture frame using the coding log, to obtain the target view of MPEG2 coding
Frequently.
2. MPEG2 coding method as described in claim 1, which is characterized in that it is described that target video is pre-processed, it obtains
The process of the yuv picture frame of the target video, comprising:
The target video is decapsulated using transcoder, obtains the first es stream；
The first es stream is decoded, the yuv picture frame of the target video is obtained.
3. MPEG2 coding method as claimed in claim 2, which is characterized in that described to utilize transcoder to the target video
It is decapsulated, obtains the process of the first es stream, comprising:
The target video is decapsulated using ffmpeg, obtains the first es stream.
4. MPEG2 coding method as described in claim 1, which is characterized in that described to be schemed using hardware coder to the yuv
As frame progress first encoding, the process of coding log is obtained, comprising:
The first encoding is carried out to the yuv picture frame using the hardware coder；
Judge whether all yuv picture frames in the yuv picture frame carry out the first encoding；
If it is not, then execute again it is described target video is pre-processed, obtain the step of the yuv picture frame of the target video
Suddenly；If so, obtaining the coding log.
5. MPEG2 coding method as described in claim 1, which is characterized in that described to utilize the coding log to the yuv
Picture frame carries out secondary coding, to obtain the process of the target video of MPEG2 coding, comprising:
The secondary coding is carried out to the yuv picture frame using the coding log；
Judge whether all yuv picture frames in the yuv picture frame carry out the secondary coding；
If it is not, then executing described the step of carrying out secondary coding to the yuv picture frame using the coding log again；If
It is then to obtain the 2nd es stream, and be packaged to the 2nd es stream, to obtain the target video of MPEG2 coding.
6. such as MPEG2 coding method described in any one of claim 1 to 5, which is characterized in that described to utilize hardware coder pair
The yuv picture frame carries out first encoding, obtains the process of coding log, comprising:
The first encoding is carried out to the yuv picture frame using FPGA, obtains the coding log.
7. such as MPEG2 coding method described in any one of claim 1 to 5, which is characterized in that described to utilize hardware coder pair
The yuv picture frame carries out first encoding, obtains the process of coding log, comprising:
The first encoding is carried out to the yuv picture frame using the QSV hardware coder of Intel, obtains the coding log.
8. a kind of MPEG2 coded system of video characterized by comprising
Pretreatment unit obtains the yuv picture frame of the target video for pre-processing to target video；
Log acquisition unit obtains coding log for carrying out first encoding to the yuv picture frame using hardware coder；
Video encoding unit, for carrying out secondary coding to the yuv picture frame using the coding log, to obtain MPEG2
The target video of coding.
9. a kind of computer readable storage medium, which is characterized in that be stored with video on the computer readable storage medium
The program of the program of MPEG2 coding method, the MPEG2 coding method of the video can be executed by one or more processor,
The step of MPEG2 coding method to realize video as described in any one of claim 1 to 7.
10. a kind of MPEG2 encoding device of video, which is characterized in that the equipment includes memory and processor, the storage
The program of the MPEG2 coding method for the video that can be run on the processor, the MPEG2 coding of the video are stored on device
It realizes when the program of method is executed by processor such as the MPEG2 coding method of video as described in any one of claim 1 to 7
Step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640242.1A CN109862362A (en) | 2018-12-29 | 2018-12-29 | A kind of MPEG2 coding method, system, medium and the equipment of video |
Applications Claiming Priority (1)
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