CN108419041A - A kind of method and apparatus of video data processing - Google Patents
A kind of method and apparatus of video data processing Download PDFInfo
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- CN108419041A CN108419041A CN201710071682.9A CN201710071682A CN108419041A CN 108419041 A CN108419041 A CN 108419041A CN 201710071682 A CN201710071682 A CN 201710071682A CN 108419041 A CN108419041 A CN 108419041A
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- abstraction layer
- layer unit
- network abstraction
- code stream
- byte code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
Abstract
An embodiment of the present invention provides a kind of method and apparatus of video data processing, it is applied to regard in networking, the method includes：After the raw bytes code stream for receiving video data, network abstraction layer unit is identified from raw bytes code stream and determines whether the type of network abstraction layer unit is preset kind；When the type of network abstraction layer unit is preset kind, extract network abstraction layer unit, then the network abstraction layer unit of extraction is reconfigured, it obtains target byte code stream and target byte code stream is sent to regarding networking playback terminal, using the embodiment of the present invention, extra or abnormal byte chip segment can be removed from the raw bytes code stream of video data, extra or abnormal byte chip segment is encountered when avoiding the decoding of the hardware decoders such as set-top box, there is blank screen when playing video, interim card, picture loses the problem of shake, it improves the fault-tolerant ability of decoder and improves the fluency of video playing.
Description
Technical field
The present invention relates to regarding networking technology field, more particularly to a kind of method and apparatus of video data processing.
Background technology
With the fast development of the network technology, the two-way communications such as video conference, video teaching the life of user, work,
Study etc. is widely available.
Currently, with the widespread development regarding networking service in China, connection interaction is regarded in portion of government depending on networking high definition
Very important effect is played in door and other industries, such as in safety-security area, monitoring remote video passes through monitoring device
After acquiring video data, it is sent to after video data is packaged regarding networked server, by being sent to regarding connection depending on networked server
It is played out after network termination, such as set-top box decoding, to realize monitoring remote video.
Currently, video data acquiring end is when video data to be packaged, it will usually add useless data or exception
Data, this results in the hardware decoders such as set-top box in decoding, the problem of blank screen, interim card, picture loses shake occurs.
Invention content
In view of the above problems, it is proposed that the embodiment of the present invention overcoming the above problem or at least partly in order to provide one kind
A kind of method and apparatus of video data processing to solve the above problems.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of method of video data processing, it is applied to regard connection
Net, it is described regard networking include regarding networked server and regarding networking playback terminal, the method includes：
When receiving the raw bytes code stream of video data, network abstract layer is identified from the raw bytes code stream
Unit；
Determine whether the type of the network abstraction layer unit is preset kind；
When it is preset kind to determine the type of the network abstraction layer unit, the network abstraction layer unit is extracted；
The network abstraction layer unit of extraction is reconfigured, target byte code stream is obtained；
By the target byte code stream by being sent to regarding networked server depending on networking, the networked server that regards is used to incite somebody to action
The target byte code stream is sent to regarding networking playback terminal.
Preferably, the network abstraction layer unit includes initial code, described when the raw bytes code for receiving video data
When stream, the step of identifying network abstraction layer unit from the raw bytes code stream, includes：
Receive the raw bytes code stream of video data；
Whether detect in the raw bytes code stream includes the initial code；
If so, by the raw bytes code stream before the initial code to next initial code, it is determined as network abstract layer list
Member.
Preferably, the step of whether type of the determination network abstraction layer unit is preset kind include：
Obtain the type-byte code of the network abstraction layer unit；
Judge whether the type-byte code is preset byte code；
If so, determining that the type of the network abstraction layer unit is preset kind.
Preferably, the step of type-byte code for obtaining the network abstraction layer unit includes：
Obtain the bytecode of the designated position of the network abstraction layer unit；
Using the bytecode of the designated position as type-byte code.
Preferably, described the step of reconfiguring the network abstraction layer unit of extraction, obtaining target byte code stream, includes：
Determine the sequencing of network abstraction layer unit each in raw bytes code stream；
The network abstraction layer unit of extraction is ranked up according to the sequencing；
Network abstraction layer unit after sequence is reconfigured, target byte code stream is obtained.
Preferably, described to include depending on the step of networked server by being sent to depending on networking by the target byte code stream：
The target byte code stream is packaged, video data packet is obtained；
The video data packet is sent to described regard by the data link depending on networked server distribution to join
Network server.
The embodiment of the present invention additionally provides a kind of device of video data processing, is applied to regard networking, described to regard networking packet
It includes regarding networked server and regarding networking playback terminal, described device includes：
Identification module, for when receiving the raw bytes code stream of video data, knowing from the raw bytes code stream
Network abstraction layer unit is not gone out；
Preset kind determining module, for determining whether the type of the network abstraction layer unit is preset kind；
Extraction module, for when it is preset kind to determine the type of the network abstraction layer unit, extracting the network
Abstraction Layer units；
Target byte code stream composite module obtains target byte for reconfiguring the network abstraction layer unit of extraction
Code stream；
Sending module, for, by being sent to regarding networked server depending on networking, described regard to join by the target byte code stream
Network server is used to the target byte code stream being sent to regarding networking playback terminal.
Preferably, the network abstraction layer unit includes initial code, and the identification module includes：
Receiving submodule, the raw bytes code stream for receiving video data；
Detection sub-module, for whether detecting in the raw bytes code stream comprising the initial code；
Determination sub-module, for by the raw bytes code stream before the initial code to next initial code, being determined as network
Abstraction Layer units.
Preferably, the preset kind determining module includes：
Type-byte code acquisition submodule, the type-byte code for obtaining the network abstraction layer unit；
Preset byte code judging submodule, for judging whether the type-byte code is preset byte code；
Preset kind determination sub-module, for determining that the type of the network abstraction layer unit is preset kind.
Preferably, the type-byte code acquisition submodule includes：
Specified bytes code acquiring unit, the bytecode of the designated position for obtaining the network abstraction layer unit；
Type-byte code determination unit, for using the bytecode of the designated position as type-byte code.
Preferably, the target byte code stream composite module includes：
Sequence determination sub-module, the sequencing for determining network abstraction layer unit each in raw bytes code stream；
Sorting sub-module, for the network abstraction layer unit of extraction to be ranked up according to the sequencing；
Submodule is combined, for reconfiguring the network abstraction layer unit after sequence, obtains target byte code stream.
Preferably, the sending module includes：
Encapsulation submodule obtains video data packet for the target byte code stream to be packaged；
Sending submodule, for the video data packet to be passed through the data link regarding networked server distribution
It is sent to described regarding networked server.
The embodiment of the present invention includes following advantages：
In the embodiment of the present invention, after receiving the raw bytes code stream of video data, identified from raw bytes code stream
Go out network abstraction layer unit and determines whether the type of network abstraction layer unit is preset kind；When the class of network abstraction layer unit
When type is preset kind, network abstraction layer unit is extracted, then the network abstraction layer unit of extraction is reconfigured, obtains target
Byte code stream and by target byte code stream be sent to regarding networking playback terminal can be from video data using the embodiment of the present invention
Raw bytes code stream in identify type be video data network abstraction layer unit and reconfigured, obtain target word
Code stream is saved, the extra or abnormal byte chip segment in raw bytes code stream is eliminated, avoids the decoding of the hardware such as set-top box
Device encounters extra or abnormal byte chip segment when decoding, occur blank screen, interim card when playing video, and picture loses shake
Problem improves the fault-tolerant ability of decoder and improves the fluency of video playing.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of step flow chart of the embodiment of the method for video data processing of the present invention；
Fig. 2 is a kind of process chart of video data of the present invention；
Fig. 3 is a kind of structure diagram of the device embodiment of video data processing of the present invention；
Specific implementation mode
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 describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig.1, a kind of step flow chart of the embodiment of the method for video data processing of the present invention, this method are shown
It can be applied to regard in networking, it is described to regard networking including regarding networked server and regarding networking playback terminal, specifically including following step
Suddenly：
Step 101, when receiving the raw bytes code stream of video data, net is identified from the raw bytes code stream
Network Abstraction Layer units；
In the embodiment of the present invention, video data can be the data acquired by the monitor terminal (camera) regarding networking,
The raw bytes code of video data can be encoded to by H.264 coding standard depending on the video data that the monitor terminal of networking acquires
Stream, compared with other existing video encoding standards, H.264 coding can provide more outstanding image under identical bandwidth
Quality, and the compression efficiency under same image quality improves 2 times or so than other standards (MPEG2).H.264 it encodes
It is bytestream format that mode, which can be by video data encoding, such as is encoded into the byte code stream of 16 systems.
H.264 it is the difference for solving the network transmission in different application.It defines two layers：VCL (video coding layer, Video
Coding Layer) it is responsible for efficient video frequency content expressing, NAL (network abstraction layer, Network AbstractionLayer)
It is responsible for that data are packaged and are transmitted in a manner of appropriate required by network.NAL is with NALU (network abstraction layer unit, NAL
Unit) coded data is supported to be transmitted in based on packet-switch technology network for unit.Therefore, video counts can received
According to raw bytes code stream after, network abstraction layer unit is therefrom identified, specifically, step 101 may include following sub-step：
Sub-step 1011 receives the raw bytes code stream of video data；
In the embodiment of the present invention, raw bytes code stream can be hexadecimal byte code stream, such as following bytecode
Stream is hexadecimal raw bytes code stream：
00 00 00 01 2C 00 10 32 20 6E 75 6D 20 30 00 80 00 00 00 01 26 05 1A
DC……
It is only the example of hexadecimal raw bytes code stream above, naturally it is also possible to be the raw bytes of other systems
Code stream, such as can also be binary raw bytes code stream, carried out when implementing the embodiment of the present invention binary system and 16 into
The conversion of system, the embodiment of the present invention are not limited the system of raw bytes code stream herein.
Whether sub-step 1012, it includes the initial code to detect in the raw bytes code stream；
In order to enable decoder can very easily detect the boundary of network abstraction layer unit, network abstraction is taken out successively
Layer unit is decoded, and H.264 adds initial code before each network abstraction layer unit：" 00000001 " or " 000001 ",
On certain form of medium, for the convenience of addressing, it is desirable that byte code stream be aligned in length or some constant it is whole
Several times, so " 0 " of several bytes is added before initial code to fill, such as it is 4 bit byte length to require byte code stream, then exists
Increase a bit byte " 00 " before bytecode " 000001 ".
In the embodiment of the present invention, detect raw bytes code stream in whether comprising initial code can first detect receive it is original
Whether include " 000001 " in byte code stream, if there is " 000001 ", then explanation detects network abstraction layer unit, otherwise after
Continuous to detect whether there is " 00000001 ", if there is " 00000001 ", then explanation detects network abstraction layer unit, in this way according to
Secondary cycle detection is until raw bytes code stream terminates.It can specifically be recycled and be detected with byte-by-byte, such as detected successively
Byte " 00 " when " 00 ", detects whether a following bit byte is " 01 ", if so, detect initial code " 000001 ", if
It is no, all it is " 00 " when detecting continuous triplet, then detects whether next bit is " 01 ", if then detecting initial code
“00000001”.Certainly can also integrally recycle matched method using initial code, for example, by initial code " 000001 " it is whole with
3 bytes in raw bytes code stream carry out whole matching, specifically, taking the nth byte and N in raw bytes code stream
The first, second byte after a byte forms three bytes and is matched with initial code " 000001 ", and N+1 is taken again after the completion of matching
Three bytes of the first, second byte composition newly after a byte and the N+1 byte continue to match, in this way with initial code
Length (3 or 4) is the period, and byte-by-byte takes the byte section of period word length to be matched with initial code.
In the embodiment of the present invention, by using circulation searching initial code, can effectively it identify in raw bytes code stream
Network abstraction layer unit, can subsequently to determine the type of network abstraction layer unit, to further determine that network abstract layer list
Whether member is video data.
Raw bytes code stream before the initial code to next initial code is determined as network abstraction by sub-step 1013
Layer unit.
Due to H.264 adding initial code before each network abstraction layer unit：00000001 or 000001 is used as network
The beginning of Abstraction Layer units indicates that current network Abstraction Layer units terminate, next network when detecting next initial code
Abstraction Layer units start, and therefore, can start initial code to be determined as net to the raw bytes code stream before next initial code
Network Abstraction Layer units.
In the embodiment of the present invention, after receiving the raw bytes code stream of video data, cycle detection raw bytes code stream
In whether there is initial code, if it is present determine two initial codes between byte code stream be network abstraction layer unit.
Step 102, determine whether the type of the network abstraction layer unit is preset kind；
In the raw bytes code stream of video data, may includes third party and monitor some increased useless numbers of resource
According to it is either abnormal when generate and the unrelated byte chip segment of video data, these unrelated byte chip segments also network consisting
Abstraction Layer units.In the h .264 standard, each network abstraction layer unit is provided with type, therefore can pass through network abstract layer
The type of unit determines whether network abstraction layer unit is video data, and specific step 102 may include following sub-step：
Sub-step 1021 obtains the type-byte code of the network abstraction layer unit；
In h .264, the type for defining the first bit byte expression network abstraction layer unit after initial code, if risen
Beginning code is nib code " 00 00 00 01 ", then therefore the 5th as type-byte code can obtain network abstraction
The bytecode of the designated position of layer unit, using the bytecode of designated position as type-byte code.
For example, in raw bytes code stream below, 2C after 00 00 00 01,26 are type-byte code.
00 00 00 01 2C 00 10 32 20 6E 75 6D 20 30 00 80 00 00 00 01 26 05 1A
DC……
Therefore, when recognizing a network abstraction layer unit, the bytecode that can obtain designated position is taken out as network
As the type-byte code of layer unit.
Sub-step 1022 judges whether the type-byte code is preset byte code；
In practical applications, video is made of the static image of multiframe, so for the little video of one section of variation,
In coding, a complete picture frame A can be first encoded out, subsequent picture frame B is only encoded and the difference of picture frame A, this
The size of sampled images frame B just only has a part of full frame images frame A, if the picture frame C variations after picture frame B are little,
It can continue the encoded image frame C in a manner of picture frame B, cycle is gone down in this way, this section of video is known as a sequence, and (sequence is exactly
Have the one piece of data of same characteristics), when some image and image change before are very big, the picture frame next life of front can not be referred to
At then terminating a upper sequence, start next section of sequence, that is, regenerate a complete image frame A1, subsequent image
Frame just refers to complete image frame A1 and generates, only the difference content of write-in and complete image frame A1, in h .264, complete image
Frame definition is I frames, and remaining image frame definition is that P frames also define parameter set, parameter in order to make decoder accurately decode
Collection is one group and seldom changes, and provides the data of decoded information, including sequence parameter set and picture parameter set, wherein sequential parameter
Collection acts on a series of continuous coded images, and picture parameter set act on it is one or more independent in encoded video sequence
Image.
In h .264, it is as follows that sequence parameter set, picture parameter set, I frames, the value of P frames are defined：
0x67:Sequence parameter set (SPS)
0x68:Picture parameter set (PPS)
0x65:I frames (IDR)
0x61:P frames (non-IDR Slice)
Therefore, it is 0x67,0x68,0x65,0x61 that preset byte code, which can be arranged, obtains the type of network abstraction layer unit
After bytecode, it can be determined that whether type-byte code is one in above-mentioned setting preset byte code, if so, executing sub-step
1023, it otherwise, then jumps out, continues the type for judging next network abstraction layer unit.
Certainly, above-mentioned sequence parameter set, picture parameter set, I frames, P frames value can also be metric numerical value, example
Such as：
7:Sequence parameter set (SPS)
8:Picture parameter set (PPS)
5:I frames (IDR)
1:P frames (non-IDR Slice)
Above-mentioned value 7,8,5,1 is that 0x67,0x68,0x65,0x61 are obtained after hexadecimal is converted to the decimal system, certainly
It can also be indicated with other systems, such as binary system etc., the embodiment of the present invention is to sequence parameter set, picture parameter set, I
Frame, P frames value mode be not limited.
Sub-step 1023 determines that the type of the network abstraction layer unit is preset kind.
When the type-byte code of network abstraction layer unit is preset byte code, for example, the type of network abstraction layer unit
It when bytecode is one in 0x67,0x68,0x65,0x61, determines that the type of network abstraction layer unit is preset kind, i.e., should
Network abstraction layer unit is one in sequence parameter set, picture parameter set, I frames, P frames, is and the relevant network of video data
Abstraction Layer units.If not preset kind, then illustrate the data that network abstraction layer unit is extra or abnormal.
In the embodiment of the present invention, after identifying network abstraction layer unit, the type-byte code of network abstraction layer unit is obtained,
The type of network abstraction layer unit is determined by type-byte code, it can be from raw bytes code stream, it is determined that video data
Byte code stream and non-video data byte code stream, to remove the byte code stream of non-video data.
Step 103, when it is preset kind to determine the type of the network abstraction layer unit, the network abstract layer is extracted
Unit；
When it is preset kind to determine the type of network abstraction layer unit, network abstraction layer unit is extracted, is stored to caching
In.
In the embodiment of the present invention, preset kind be with the relevant sequence parameter set of video, picture parameter set, I frames, P frames, because
This network abstraction layer unit extracted must be video data.
Step 104, the network abstraction layer unit of extraction is reconfigured, obtains target byte code stream.
In practical applications, can be extracted a frame data network abstraction layer unit after, reconfigure a frame data,
Specific step 104 may include following sub-step：
Sub-step 1041 determines the sequencing of network abstraction layer unit each in raw bytes code stream；
The network abstraction layer unit of extraction is ranked up by sub-step 1042 according to the sequencing；
Sub-step 1043 reconfigures the network abstraction layer unit after sequence, obtains target byte code stream.
In the embodiment of the present invention, the sequence that each network abstraction layer unit can be extracted as sequencing, then according to
Sequencing reconfigures again after being ranked up, and obtains target byte code stream.
The network abstraction layer unit for being combined into target byte code stream is entirely video data, therefore, in target byte code stream
There is no the extra extra bytecode flow sections unrelated with video data, can promote quality and the playback terminal decoding of video
The fault-tolerant ability of device, decoding efficiency.
Step 105, described to regard the Internet services by the target byte code stream by being sent to regarding networked server depending on networking
Device is used to the target byte code stream being sent to regarding networking playback terminal.
In one preferred embodiment of the invention, step 105 includes following sub-step：
The target byte code stream is packaged, obtains video data packet by sub-step 1051；
In the embodiment of the present invention, after being combined into a frame target byte code stream, need to be packaged to carry out data transmission.Example
It is encapsulated as carried out H.264 video data PS.In target byte code stream, sequence parameter set, picture parameter set usually before I frames,
Therefore the network abstraction layer unit of sequence parameter set, picture parameter set and I frames can be packaged into a PS packet, including PS packets
Head and the packet header PES then directly can add the packet header PS for P frames and the packet header PES is packaged into PS packets.
Sub-step 1052 sends the video data packet by the data link regarding networked server distribution
Networked server is regarded to described.
In practical applications, video data can be acquired, handle in the monitor terminal of Ethernet, encapsulate after be sent to
Depending on networked server, can also be acquired, handle depending on networked terminals, encapsulate after be sent to regarding networked server.
Networking is regarded as the network with centralized control functions, including main control server and undernet equipment, subordinate's net
Network equipment includes terminal, and one of the core idea depending on networking is, by notifying switching equipment to be directed to when secondary by main control server
The downstream communications link of service matches table, and the table for being then based on the configuration carries out the transmission of data packet, that is, regards the communication party in networking
Method includes：
Depending on networked server configuration when time downlink data communication link of service：
By source terminal (such as ethernet terminal or regard networked terminals) send when time data packet of service, according to lower line number
Target terminal is sent to according to communication link (as regarded networked server).
In embodiments of the present invention, it configures when time downlink data communication link of service includes：Notice is when under time service
Switching equipment involved by row data communication link matches table；
Furthermore, include according to the transmission of downlink data communication link：The configured table of inquiry, switching equipment is to being connect
The data packet of receipts is transmitted by corresponding port.
Specific in the embodiment of the present invention, ethernet terminal or video data packet is sent to regarding networking clothes depending on networked terminals
Before business, with regarding networking connect during, regard networked server according to ethernet terminal or regarding connection terminal address, be with
Too network termination or the data communication regarding networked terminals distribution ethernet terminal or regarding networked terminals and between networked server
Link, the data link information include the equipment (such as ethernet gateway or interchanger) that transmit process is related to and end
Mouthful, therefore, the video data packet after encapsulation can be sent to regarding networked server, specifically according to data link information
, by taking ethernet terminal as an example, video data packet is sent to therewith according to Ethernet protocol by video data packet in ethernet networks
The ethernet gateway of connection, in ethernet gateway after protocol conversion, according to data link information, by video data packet
It is sent to next equipment according to specified port, networked server is regarded until reaching, video data is received depending on networked server
Bao Hou, what video data packet can be sent to order request regards networked terminals, is played out after being decoded depending on networked terminals.
In the embodiment of the present invention, after the extra byte chip segment removal in the raw bytes code stream of video data, weight
Combination nova is sent to after encapsulation regarding networked server, at target byte code stream by being sent to regarding networked terminals depending on networked server
Decoding plays, such as set-top box etc. is decoded, and improves the fault-tolerant ability of set-top box, decoding efficiency and improves video
Play quality.
Embodiment in order to better illustrate the present invention illustrates the embodiment of the present invention with one below：
With reference to shown in Fig. 2, for an exemplary flow chart of video data of the present invention processing, video data process flow packet
It includes：
S1：Receive the hexadecimal raw bytes code stream of H.264 video data；
S2：00 00 01 are searched in the raw bytes code stream, are such as found, are then executed S3；Otherwise S4 is executed；
S3：Obtain quintet code (if initial code is 00 00 01, a byte 00 is mended in front)；
S4：00 00 00 01 are searched in the raw bytes code stream, are such as found and are executed S3, otherwise return to S1；
S5：Judge whether the value of quintet code is equal to 5 or 7 or 8 or 1, if so, S6 is executed, if it is not, executing S7.
S6 is combined into target byte code stream；
S7 is jumped out.
In this example, one section of hexadecimal raw bytes code stream is received, such as：
00 00 00 01 2C 00 10 32 20 6E 75 6D 20 30 00 80 00 00 00 01 26 05 1A
DC 36 31 31 46 52 41 4D 45
" 000001 " is first looked in raw bytes code stream, and " 00000001 " is searched if searching less than " 000001 ",
If there is " 000001 " or " 00000001 ", then its latter position is judged, " 2C " such as among the above turns hexadecimal " 2C "
After being changed to the decimal system, whether metric value is 5 or 7 or 8 or 1, if it is will be after " 000001 " or " 00000001 "
Until the raw bytes code stream before next " 000001 " or " 00000001 " extracts, target byte code is recombined
Stream, in this manner it is possible to remove byte chip segment extra in raw bytes code stream (" 000001 " or " 00000001 " latter position
The value of byte is not 5 or 7 or 8 or 1), ensures that target byte code stream is entirely video data.
In the embodiment of the present invention, after receiving the raw bytes code stream of video data, identified from raw bytes code stream
Go out network abstraction layer unit and determines whether the type of network abstraction layer unit is preset kind；When the class of network abstraction layer unit
When type is preset kind, network abstraction layer unit is extracted, then the network abstraction layer unit of extraction is reconfigured, obtains target
Byte code stream and by target byte code stream be sent to regarding networking playback terminal can be from video data using the embodiment of the present invention
Raw bytes code stream in identify type be video data network abstraction layer unit and reconfigured, obtain target word
Code stream is saved, byte chip segment extra or abnormal in raw bytes code stream is eliminated, is avoided regarding networking set-top box decoding
When encounter extra or abnormal byte chip segment, occur the problem of blank screen, interim card, picture loses shake when playing video,
It improves the decoded fault-tolerant ability of set-top box and improves the fluency of video playing.
It should be noted that for embodiment of the method, for simple description, therefore it is all expressed as a series of action group
It closes, but those skilled in the art should understand that, the embodiment of the present invention is not limited by the described action sequence, because according to
According to the embodiment of the present invention, certain steps can be performed in other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 3, show that a kind of structure diagram of the device embodiment of video data processing of the present invention, the device are answered
It networks for regarding, described to regard networking including regarding networked server and regarding networking playback terminal, described device includes：
Identification module 201, for when receiving the raw bytes code stream of video data, from the raw bytes code stream
Identify network abstraction layer unit；
Preset kind determining module 202, for determining whether the type of the network abstraction layer unit is preset kind；
Extraction module 203, for when it is preset kind to determine the type of the network abstraction layer unit, extracting the net
Network Abstraction Layer units；
Target byte code stream composite module 204 obtains target word for reconfiguring the network abstraction layer unit of extraction
Save code stream；
Sending module 205, for by the target byte code stream by being sent to regarding networked server depending on networking, it is described to regard
Networked server is used to the target byte code stream being sent to regarding networking playback terminal.
In one preferred embodiment of the invention, the network abstraction layer unit includes initial code, the identification module
201 include：
Receiving submodule, the raw bytes code stream for receiving video data；
Detection sub-module, for whether detecting in the raw bytes code stream comprising the initial code；
Determination sub-module, for by the raw bytes code stream before the initial code to next initial code, being determined as network
Abstraction Layer units.
In one preferred embodiment of the invention, the preset kind determining module 202 includes：
Type-byte code acquisition submodule, the type-byte code for obtaining the network abstraction layer unit；
Preset byte code judging submodule, for judging whether the type-byte code is preset byte code；
Preset kind determination sub-module, for determining that the type of the network abstraction layer unit is preset kind.
The type-byte code acquisition submodule includes：
Specified bytes code acquiring unit, the bytecode of the designated position for obtaining the network abstraction layer unit；
Type-byte code determination unit, for using the bytecode of the designated position as type-byte code.
In one preferred embodiment of the invention, the target byte code stream composite module 204 includes：
Sequence determination sub-module, the sequencing for determining network abstraction layer unit each in raw bytes code stream；
Sorting sub-module, for the network abstraction layer unit of extraction to be ranked up according to the sequencing；
Submodule is combined, for reconfiguring the network abstraction layer unit after sequence, obtains target byte code stream.
In one preferred embodiment of the invention, the sending module 205 includes：
Encapsulation submodule obtains video data packet for the target byte code stream to be packaged；
Sending submodule, for the video data packet to be passed through the data link regarding networked server distribution
It is sent to described regarding networked server.
For device embodiments, since it is basically similar to the method embodiment, so fairly simple, the correlation of description
Place illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generates for realizing in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device of specified function.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In computer-readable memory operate in a specific manner so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one flow of flow chart or multiple flows
And/or in one box of block diagram or multiple boxes specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also include other elements that are not explicitly listed, or further include for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device including the element.
Above to a kind of method and apparatus of video data processing provided by the present invention, it is described in detail, herein
In apply specific case principle and implementation of the present invention are described, the explanation of above example is only intended to sides
Assistant solves the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
The limitation of the present invention.
Claims (12)
1. a kind of method of video data processing, which is characterized in that it networks applied to regarding, it is described to regard networking including regarding the Internet services
Device and regarding networking playback terminal, the method includes：
When receiving the raw bytes code stream of video data, network abstract layer list is identified from the raw bytes code stream
Member；
Determine whether the type of the network abstraction layer unit is preset kind；
When it is preset kind to determine the type of the network abstraction layer unit, the network abstraction layer unit is extracted；
The network abstraction layer unit of extraction is reconfigured, target byte code stream is obtained；
By the target byte code stream by being sent to regarding networked server depending on networking, it is described depending on networked server for will be described
Target byte code stream is sent to regarding networking playback terminal.
2. described to work as according to the method described in claim 1, it is characterized in that, the network abstraction layer unit includes initial code
When receiving the raw bytes code stream of video data, the step of identifying network abstraction layer unit from the raw bytes code stream
Including：
Receive the raw bytes code stream of video data；
Whether detect in the raw bytes code stream includes the initial code；
If so, by the raw bytes code stream before the initial code to next initial code, it is determined as network abstraction layer unit.
3. according to the method described in claim 1, it is characterized in that, the type of the determination network abstraction layer unit whether
Include for the step of preset kind：
Obtain the type-byte code of the network abstraction layer unit；
Judge whether the type-byte code is preset byte code；
If so, determining that the type of the network abstraction layer unit is preset kind.
4. according to the method described in claim 3, it is characterized in that, the type-byte for obtaining the network abstraction layer unit
Code the step of include：
Obtain the bytecode of the designated position of the network abstraction layer unit；
Using the bytecode of the designated position as type-byte code.
5. method according to claim 1 or 3, which is characterized in that the network abstraction layer unit by extraction group again
It closes, the step of obtaining target byte code stream includes：
Determine the sequencing of network abstraction layer unit each in raw bytes code stream；
The network abstraction layer unit of extraction is ranked up according to the sequencing；
Network abstraction layer unit after sequence is reconfigured, target byte code stream is obtained.
6. according to the method described in claim 1, it is characterized in that, described send the target byte code stream by regarding networking
Extremely include depending on the step of networked server：
The target byte code stream is packaged, video data packet is obtained；
The video data packet is sent to by the data link regarding networked server distribution and described regard networking and takes
Business device.
7. a kind of device of video data processing, which is characterized in that it networks applied to regarding, it is described to regard networking including regarding the Internet services
Device and regarding networking playback terminal, described device includes：
Identification module, for when receiving the raw bytes code stream of video data, being identified from the raw bytes code stream
Network abstraction layer unit；
Preset kind determining module, for determining whether the type of the network abstraction layer unit is preset kind；
Extraction module, for when it is preset kind to determine the type of the network abstraction layer unit, extracting the network abstraction
Layer unit；
Target byte code stream composite module obtains target byte code stream for reconfiguring the network abstraction layer unit of extraction；
Sending module, for by the target byte code stream by being sent to regarding networked server depending on networking, it is described regard networking clothes
Business device is used to the target byte code stream being sent to regarding networking playback terminal.
8. device according to claim 7, which is characterized in that the network abstraction layer unit includes initial code, the knowledge
Other module includes：
Receiving submodule, the raw bytes code stream for receiving video data；
Detection sub-module, for whether detecting in the raw bytes code stream comprising the initial code；
Determination sub-module, for by the raw bytes code stream before the initial code to next initial code, being determined as network abstraction
Layer unit.
9. device according to claim 7, which is characterized in that the preset kind determining module includes：
Type-byte code acquisition submodule, the type-byte code for obtaining the network abstraction layer unit；
Preset byte code judging submodule, for judging whether the type-byte code is preset byte code；
Preset kind determination sub-module, for determining that the type of the network abstraction layer unit is preset kind.
10. device according to claim 9, which is characterized in that the type-byte code acquisition submodule includes：
Specified bytes code acquiring unit, the bytecode of the designated position for obtaining the network abstraction layer unit；
Type-byte code determination unit, for using the bytecode of the designated position as type-byte code.
11. the device according to claim 7 or 9, which is characterized in that the target byte code stream composite module includes：
Sequence determination sub-module, the sequencing for determining network abstraction layer unit each in raw bytes code stream；
Sorting sub-module, for the network abstraction layer unit of extraction to be ranked up according to the sequencing；
Submodule is combined, for reconfiguring the network abstraction layer unit after sequence, obtains target byte code stream.
12. device according to claim 7, which is characterized in that the sending module includes：
Encapsulation submodule obtains video data packet for the target byte code stream to be packaged；
Sending submodule, for sending the video data packet by the data link regarding networked server distribution
Networked server is regarded to described.
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