CN110139150A - A kind of method for processing video frequency and device - Google Patents
A kind of method for processing video frequency and device Download PDFInfo
- Publication number
- CN110139150A CN110139150A CN201910294819.6A CN201910294819A CN110139150A CN 110139150 A CN110139150 A CN 110139150A CN 201910294819 A CN201910294819 A CN 201910294819A CN 110139150 A CN110139150 A CN 110139150A
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- China
- Prior art keywords
- identification code
- layer unit
- video
- network abstraction
- abstraction layer
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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]
- H04N21/20—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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
-
- 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, rendering scenes according to MPEG-4 scene graphs
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440227—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by decomposing into layers, e.g. base layer and one or more enhancement layers
Abstract
The embodiment of the present invention provides a kind of method for processing video frequency and device, wherein the described method includes: each network abstraction layer unit NALU for video identifies unique identification code in order；Layer unit NALU is extracted according to the identification code selected network of the network abstraction layer unit NALU, and independent process is carried out to the selected network abstraction layer unit NALU.Identification code is identified by the network abstraction layer unit to video, processing to video is carried out as unit of network abstraction layer unit, when needing to intercept the partial content in video, its corresponding required video section is directly acquired by the identification code of the corresponding network abstraction layer unit of required content, without handling whole section of video, so that video is convenient for management and efficient.
Description
Technical field
The present invention relates to field of video processing more particularly to a kind of method for processing video frequency and device.
Background technique
In the prior art, when playing a part of one section of long video on network flow-medium, by this section of video
Editing is got off from long video, and it is very convenient for doing so to single audio and video playing.When there are many this operation,
Very more redundancies can be generated, can not effectively be managed.Meanwhile it calling entire video file to carry out processing from disk every time to be also
A kind of lower mode of efficiency.
Summary of the invention
The embodiment of the present invention provides a kind of method for processing video frequency and device, by as unit of network abstraction layer unit to view
Frequency is managed, and realizes a kind of easy to operate, efficient video management method.
To achieve the above object, on the one hand, the embodiment of the invention provides a kind of method for processing video frequency, the method packets
It includes:
Unique identification code is identified in order for each network abstraction layer unit NALU of video；
Layer unit NALU is extracted according to the identification code selected network of the network abstraction layer unit NALU, and to described selected
Network abstraction layer unit NALU carry out independent process.
On the other hand, the embodiment of the invention provides a kind of video process apparatus, described device includes:
Identification code identifies unit: identifying unique identification in order for each network abstraction layer unit NALU for video
Code；
Video processing unit: for extracting layer unit according to the identification code selected network of the network abstraction layer unit NALU
NALU, and independent process is carried out to the selected network abstraction layer unit NALU.
Above-mentioned technical proposal, which has the following beneficial effects:, is identified identification by the network abstraction layer unit to video
Code, carries out the processing to video as unit of network abstraction layer unit, when needing to intercept the partial content in video
When, its corresponding required video section is directly acquired by the identification code of the corresponding network abstraction layer unit of required content, without
Whole section of video must be handled, so that video is convenient for management and efficient.
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
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of method for processing video frequency of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of video process apparatus of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the video processing unit in the embodiment of the present invention；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of flow chart of method for processing video frequency of the embodiment of the present invention, which comprises
S101, unique identification code is identified in order for each network abstraction layer unit NALU of video；
Preferably, each network abstraction layer unit NALU for video identify in order unique identification code it
Before, the method also includes: when being encoded to video, for the reserved mark identification code of each network abstraction layer unit NALU
Space.
In the prior art, the processing of video, broadcasting etc. are operated, is to carry out video as a whole, one
In a little situations, when needing to carry out segmentation intercept operation to the various pieces of a video, that is, need repeatedly to be intercepted video
And the video-frequency band of interception is stored respectively, redundancies much more very can be generated, occupied space and treatment effeciency is lower；And the application
The sky of the reserved mark identification code of each network abstraction layer unit NALU is reserved as in technical solution, when by encoding to video
Between, and then unique identification code is identified for each network abstraction layer unit NALU, allow to according to the identification code to video
It is managed according to each network abstraction layer unit NALU, when needing to handle some part in video, only needs
Determine identification code or identification code section corresponding to the corresponding network abstraction layer unit NALU of the partial video content, it is directly logical
It crosses identification code and extracts the corresponding network abstraction layer unit NALU of video the contents of the section, do not need to cut entire video
Fetch acquisition.
Further preferably, each network abstraction layer unit NALU for video identifies unique identification in order
Code, comprising: be the unique identification code of each video identifier, and establish the identification code index of video；It is taken out for each network of video
It takes layer unit NALU to identify unique identification code in order, and establishes the knowledge of the corresponding network abstraction layer unit NALU of each video
Other code index；Unique identification code is identified in order for each frame image in each network abstraction layer unit NALU, and is established
The corresponding video identification code index of each network abstraction layer unit.
When the processing for multiple videos, known by video identification code index, the network abstraction layer unit in the application
Other code index, when the operation such as can extract, integrate to the partial content in multiple videos, only need as required sequence according to
Video content corresponding identification code needed for index obtains can be extracted arbitrarily, integrate different content in different video, and be only
Associated video is handled in identification code level, does not need to be related to each video itself, processing is efficiently convenient.
S102, layer unit NALU is extracted according to the identification code selected network of the network abstraction layer unit NALU, and to institute
It states selected network abstraction layer unit NALU and carries out independent process.
Preferably, according to the identification code of the network abstraction layer unit NALU, the knowledge of network abstraction layer unit NALU is established
Other code index；
Pass through identification code or knowledge corresponding to identification code index selection network abstraction layer unit NALU to be treated
Other code section, and network abstraction layer unit NALU corresponding to the selected identification code or identification code section is looked into accordingly
It askes, extract, edit or sends.
It is indexed according to identification code, when the video content needed for client is sent extracts demand, server passes through according to net
Network abstraction, layer unit identity code index, determines the corresponding identification code of required video content or identification code section, described in extraction
Identification code or the corresponding network abstraction layer unit NALU in identification code section, and it is sent to client.
Further, the method also includes:
The selected quantity for recording network abstraction, layer unit in set period of time, by selected amount in a upper period not less than setting
The network abstraction layer unit of max-thresholds calls in memory in advance；
Network abstraction layer unit by selected amount lower than setting minimum threshold is discharged from memory.
Under personalized demand, for one section of video, according to the difference of different people interest, possible different people concern
Point can be different, then allowing individual only to select one according to the needs and hobby of oneself by the technical solution of the application
Oneself interested part in section video, then will exist, the utilization rate of certain network abstraction layer units in video can be high
In other network abstraction layer units, in this case, rate is namely chosen to be higher than certain numerical value utilization rate in a period of time
When network abstraction layer unit, it is called in into memory in advance, its treatment effeciency when chosen can be improved；And at one section
In, for the network abstraction layer unit in memory, when recording it and choosing rate lower than certain numerical value, it can be discharged from memory,
With releasing memory space.
As shown in Fig. 2, being a kind of schematic diagram of video process apparatus of the embodiment of the present invention, described device includes:
Identification code identifies unit 21: identifying unique knowledge in order for each network abstraction layer unit NALU for video
Other code；
Video processing unit 22: for the identification code selected network abstraction, layer list according to the network abstraction layer unit NALU
First NALU, and independent process is carried out to the selected network abstraction layer unit NALU.
Further, described device further includes mark Prearranged elements: in each network abstraction, layer for video
It is each network abstraction layer unit when being encoded to video before unit NALU identifies unique identification code in order
The space of the reserved mark identification code of NALU.
Further, as shown in figure 3, the video processing unit 22 includes:
Index module 221: for the identification code according to the network abstraction layer unit NALU, network abstraction layer unit is established
The identification code of NALU indexes；
Processing module 222: for passing through identification code index selection network abstraction layer unit NALU institute to be treated
Corresponding identification code or identification code section, and accordingly to network abstraction corresponding to the selected identification code or identification code section
Layer unit NALU is inquired, is extracted, edited or is sent.
Further, the identification code mark unit 21 is specifically used for:
For the unique identification code of each video identifier, and establish the identification code index of video；
Unique identification code is identified in order for each network abstraction layer unit NALU of video, and establishes each video pair
The identification code of the network abstraction layer unit NALU answered indexes；
Unique identification code is identified in order for each frame image in each network abstraction layer unit NALU, and is established every
The corresponding video identification code index of one network abstraction layer unit.
Further, described device further includes pre- memory cell:
For recording the selected quantity of network abstraction, layer unit in set period of time, selected amount in a upper period was not less than
The network abstraction layer unit of setting max-thresholds calls in memory in advance；Network abstraction, layer by selected amount lower than setting minimum threshold
Unit is discharged from memory.
It should be understood that the particular order or level of the step of during disclosed are the examples of illustrative methods.Based on setting
Count preference, it should be appreciated that in the process the step of particular order or level can be in the feelings for the protection scope for not departing from the disclosure
It is rearranged under condition.Appended claim to a method is not illustratively sequentially to give the element of various steps, and not
It is to be limited to the particular order or level.
In above-mentioned detailed description, various features are combined together in single embodiment, to simplify the disclosure.No
This published method should be construed to reflect such intention, that is, the embodiment of theme claimed needs to compare
The more features of the feature clearly stated in each claim.On the contrary, as appended claims is reflected
Like that, the present invention is in the state fewer than whole features of disclosed single embodiment.Therefore, appended claims
It is hereby expressly incorporated into detailed description, wherein each claim is used as alone the individual preferred embodiment of the present invention.
For can be realized any technical staff in the art or using the present invention, above to disclosed embodiment into
Description is gone.To those skilled in the art；The various modifications mode of these embodiments will be apparent from, and this
The General Principle of text definition can also be suitable for other embodiments on the basis of not departing from the spirit and scope of the disclosure.
Therefore, the disclosure is not limited to embodiments set forth herein, but most wide with principle disclosed in the present application and novel features
Range is consistent.
Description above includes the citing of one or more embodiments.Certainly, in order to describe above-described embodiment and description portion
The all possible combination of part or method is impossible, but it will be appreciated by one of ordinary skill in the art that each implementation
Example can do further combinations and permutations.Therefore, embodiment described herein is intended to cover fall into the appended claims
Protection scope in all such changes, modifications and variations.In addition, with regard to term used in specification or claims
The mode that covers of "comprising", the word is similar to term " includes ", just as " including " solved in the claims as transitional word
As releasing.In addition, the use of any one of specification in claims term "or" being to indicate " non-exclusionism
Or ".
Those skilled in the art will also be appreciated that the various illustrative components, blocks that the embodiment of the present invention is listed
(illustrative logical block), unit and step can by electronic hardware, computer software, or both knot
Conjunction is realized.For the replaceability (interchangeability) for clearly showing that hardware and software, above-mentioned various explanations
Property component (illustrative components), unit and step universally describe their function.Such function
It can be that the design requirement for depending on specific application and whole system is realized by hardware or software.Those skilled in the art
Can be can be used by various methods and realize the function, but this realization is understood not to for every kind of specific application
Range beyond protection of the embodiment of the present invention.
Various illustrative logical blocks or unit described in the embodiment of the present invention can by general processor,
Digital signal processor, specific integrated circuit (ASIC), field programmable gate array or other programmable logic devices, discrete gate
Or transistor logic, discrete hardware components or above-mentioned any combination of design carry out implementation or operation described function.General place
Managing device can be microprocessor, and optionally, which may be any traditional processor, controller, microcontroller
Device or state machine.Processor can also be realized by the combination of computing device, such as digital signal processor and microprocessor,
Multi-microprocessor, one or more microprocessors combine a digital signal processor core or any other like configuration
To realize.
The step of method described in the embodiment of the present invention or algorithm can be directly embedded into hardware, processor execute it is soft
The combination of part module or the two.Software module can store in RAM memory, flash memory, ROM memory, EPROM storage
Other any form of storaging mediums in device, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this field
In.Illustratively, storaging medium can be connect with processor, so that processor can read information from storaging medium, and
It can be to storaging medium stored and written information.Optionally, storaging medium can also be integrated into the processor.Processor and storaging medium can
To be set in asic, ASIC be can be set in user terminal.Optionally, processor and storaging medium also can be set in
In different components in the terminal of family.
In one or more exemplary designs, above-mentioned function described in the embodiment of the present invention can be in hardware, soft
Part, firmware or any combination of this three are realized.If realized in software, these functions be can store and computer-readable
On medium, or it is transferred on a computer readable medium in the form of one or more instructions or code forms.Computer readable medium includes electricity
Brain storaging medium and convenient for so that computer program is allowed to be transferred to from a place telecommunication media in other places.Storaging medium can be with
It is that any general or special computer can be with the useable medium of access.For example, such computer readable media may include but
It is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage devices or other
What can be used for carry or store with instruct or data structure and it is other can be by general or special computer or general or specially treated
The medium of the program code of device reading form.In addition, any connection can be properly termed computer readable medium, example
Such as, if software is to pass through a coaxial cable, fiber optic cables, double from a web-site, server or other remote resources
Twisted wire, Digital Subscriber Line (DSL) are defined with being also contained in for the wireless way for transmitting such as example infrared, wireless and microwave
In computer readable medium.The disk (disk) and disk (disc) includes compress disk, radium-shine disk, CD, DVD, floppy disk
And Blu-ray Disc, disk is usually with magnetic replicate data, and disk usually carries out optically replicated data with laser.Combinations of the above
Also it may be embodied in computer readable medium.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of method for processing video frequency, which is characterized in that the described method includes:
Unique identification code is identified in order for each network abstraction layer unit NALU of video；
Layer unit NALU is extracted according to the identification code selected network of the network abstraction layer unit NALU, and to the selected net
Network extracts layer unit NALU and carries out independent process.
2. method for processing video frequency as described in claim 1, which is characterized in that in each network abstraction, layer list for video
Before first NALU identifies unique identification code in order, the method also includes:
When being encoded to video, for the space of the reserved mark identification code of each network abstraction layer unit NALU.
3. method for processing video frequency as described in claim 1, it is characterised in that: described according to the network abstraction layer unit NALU
Identification code selected network extract layer unit NALU, and independent process is carried out to the selected network abstraction layer unit NALU,
Include:
According to the identification code of the network abstraction layer unit NALU, the identification code index of network abstraction layer unit NALU is established；
Pass through identification code or identification code corresponding to identification code index selection network abstraction layer unit NALU to be treated
Section, and network abstraction layer unit NALU corresponding to the selected identification code or identification code section is inquired accordingly,
It extracts, edit or sends.
4. method for processing video frequency as described in claim 1, it is characterised in that: each network abstraction layer unit for video
NALU identifies unique identification code in order, comprising:
For the unique identification code of each video identifier, and establish the identification code index of video；
Unique identification code is identified in order for each network abstraction layer unit NALU of video, and it is corresponding to establish each video
The identification code of network abstraction layer unit NALU indexes；
Unique identification code is identified in order for each frame image in each network abstraction layer unit NALU, and establishes each net
Network extracts the corresponding video identification code index of layer unit.
5. method for processing video frequency as described in claim 1, it is characterised in that: the method also includes:
The selected quantity for recording network abstraction, layer unit in set period of time, selected amount in a upper period is maximum not less than setting
The network abstraction layer unit of threshold value calls in memory in advance；
Network abstraction layer unit by selected amount lower than setting minimum threshold is discharged from memory.
6. a kind of video process apparatus, which is characterized in that described device includes:
Identification code identifies unit: for identifying unique identification code in order for each network abstraction layer unit NALU of video；
Video processing unit: for extracting layer unit according to the identification code selected network of the network abstraction layer unit NALU
NALU, and independent process is carried out to the selected network abstraction layer unit NALU.
7. video process apparatus as claimed in claim 6, which is characterized in that described device further includes mark Prearranged elements: being used
In before each network abstraction layer unit NALU for video identifies unique identification code in order, carried out to video
When coding, for the space of the reserved mark identification code of each network abstraction layer unit NALU.
8. video process apparatus as claimed in claim 6, it is characterised in that: the video processing unit includes:
Index module: for the identification code according to the network abstraction layer unit NALU, establish network abstraction layer unit NALU's
Identification code index；
Processing module: for passing through knowledge corresponding to identification code index selection network abstraction layer unit NALU to be treated
Other code or identification code section, and accordingly to network abstraction layer unit corresponding to the selected identification code or identification code section
NALU is inquired, is extracted, edited or is sent.
9. video process apparatus as claimed in claim 6, it is characterised in that: the identification code mark unit is specifically used for:
For the unique identification code of each video identifier, and establish the identification code index of video；
Unique identification code is identified in order for each network abstraction layer unit NALU of video, and it is corresponding to establish each video
The identification code of network abstraction layer unit NALU indexes；
Unique identification code is identified in order for each frame image in each network abstraction layer unit NALU, and establishes each net
Network extracts the corresponding video identification code index of layer unit.
10. video process apparatus as claimed in claim 6, it is characterised in that: described device further includes pre- memory cell:
For recording the selected quantity of network abstraction, layer unit in set period of time, by selected amount in a upper period not less than setting
The network abstraction layer unit of max-thresholds calls in memory in advance；Network abstraction layer unit by selected amount lower than setting minimum threshold
It is discharged from memory.
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| CN201910294819.6A CN110139150A (en) | 2019-04-12 | 2019-04-12 | A kind of method for processing video frequency and device |
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Application publication date: 20190816 |