CN107071449B - A kind of trans-coding system and method - Google Patents
A kind of trans-coding system and method Download PDFInfo
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- CN107071449B CN107071449B CN201710351518.3A CN201710351518A CN107071449B CN 107071449 B CN107071449 B CN 107071449B CN 201710351518 A CN201710351518 A CN 201710351518A CN 107071449 B CN107071449 B CN 107071449B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
Abstract
The present invention provides a kind of trans-coding system and method, which includes: the first transcoding device and at least one second transcoding device, wherein first transcoding device is transferred to each second transcoding device for receiving input code flow, and by the input code flow；Second transcoding device, for receiving the input code flow, according to the identification information of second transcoding device and processing number, and preset image procossing mapping table, for each input picture in input code flow, generate subgraph corresponding with second transcoding device, the subgraph is handled and exported, wherein, described image processing mapping table characterizes the mapping relations between each second transcoding device identification information and data handling capacity, and the size of the subgraph is less than or equal to data handling capacity.Invention additionally discloses corresponding code-transferring methods.
Description
Technical field
The present invention relates to technical field of image processing, in particular to a kind of trans-coding system and method.
Background technique
Abundant element, excellent both in sound and shape, the excellents such as video fusion image, text, sound are increasingly becoming internet
Mainstream expression way.Video is built strong presence, is attracted eyeball by true, lively propagation, reaches impression depth
It carves, remember lasting communication effect.
When watching video by TV, mobile terminal etc., carrying out transcoding to each frame image in video is also a weight
The process wanted.When currently used embedded transcoding technology carries out transcoding processing to such as image, fixation is divided the image into first
The subgraph of number encodes subgraph, is merged, is exported, and can not flexibly be divided to image.In addition, for needing
When wanting transcoding ultrahigh resolution image, requirement of the great volume of transmitted data to broadband is also relatively high, and currently used gigabit is handed over
It changes planes and is unable to satisfy bandwidth requirement, so that increased costs.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of trans-coding system and method, for solve in the prior art without
Method flexible partition image and broadband are unable to satisfy needs of problems when excessive image procossing.
In a first aspect, the embodiment of the present invention provides a kind of trans-coding system, comprising: the first transcoding device and at least one the
Two transcoding devices, wherein
First transcoding device is transferred to each described second for receiving input code flow, and by the input code flow
Transcoding device；
Second transcoding device, for receiving the input code flow, according to the identification information of second transcoding device and
Processing number and preset image procossing mapping table generate and this second turn for each input picture in input code flow
The corresponding subgraph of decoding apparatus is handled and is exported to the subgraph,
Wherein, described image processing mapping table characterizes between each second transcoding device identification information and data handling capacity
Mapping relations, the size of the subgraph is less than or equal to data handling capacity.
Optionally, second transcoding device is specifically used for according to following steps for each input figure in input code flow
Picture generates subgraph corresponding with second transcoding device:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, determine that each second transcoding is set
Standby processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each is determined
The image range that two transcoding devices are encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
Optionally, it after second transcoding device receives the input code flow, is also used to:
The input code flow is decoded using preset algorithm.
Optionally, the second transcoding device is specifically used for carrying out transcoding processing to the subgraph according to following steps and export:
The subgraph is encoded；
Subgraph after coding is transmitted.
Optionally, first transcoding device is also used to:
Receive the subgraph of each second transcoding device transmission；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, is transmitted
The code stream to be transmitted.
Second aspect, the embodiment of the present invention provide a kind of code-transferring method, comprising:
Input code flow is received by the first transcoding device, and the input code flow is transferred at least one second transcoding and is set
It is standby；
The input code flow is received by the second transcoding device, is compiled according to the identification information of second transcoding device and processing
Number and preset image procossing mapping table generate and second transcoding device for each input picture in input code flow
Corresponding subgraph；
The subgraph is handled and is exported,
Wherein, described image processing mapping table characterizes between each second transcoding device identification information and data handling capacity
Mapping relations, the size of the subgraph is less than or equal to data handling capacity.
Optionally, second transcoding device that passes through is for each input picture in input code flow, generate with this second
The corresponding subgraph of transcoding device, comprising:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, second transcoding device is determined
Processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each is determined
The image range that two transcoding devices are encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
Optionally, after receiving the input code flow by second transcoding device, further includes:
The input code flow is decoded using preset algorithm.
Optionally, second transcoding device that passes through carries out transcoding processing to the subgraph and exports, comprising:
The subgraph is encoded；
Subgraph after coding is transmitted.
Optionally, further includes:
Receive the subgraph of each second transcoding device transmission；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, is transmitted
The code stream to be transmitted.
According to the technique and scheme of the present invention, pass through the distribution with the first transcoding device and at least one the second transcoding device
Formula processing system realizes flexible partition image, reduces demand when carrying out ultrahigh resolution image transcoding to broadband, attenuating at
This.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is that the data flow in a kind of transcoding process provided in an embodiment of the present invention moves towards schematic diagram；
Fig. 2 is a kind of structural schematic diagram of trans-coding system provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram of code-transferring method provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
This embodiment of the present invention provides a kind of trans-coding system and method, include in the trans-coding system the first transcoding device and
Input code flow after the first transcoding device receives input code flow, is handed down to each second transcoding and set by multiple second transcoding devices
It is standby, wherein input code flow is generally ES (ElementaryStream) data, also known as elementary stream, generally comprises video code flow
And audio code stream, the present invention are handled for video code flow.Second transcoding device is solved to receiving input code flow respectively
Code, segmentation, coded treatment, obtain multiple subgraphs, and the subgraph that itself is handled is transferred to by each second transcoding device respectively
First transcoding device, the first transcoding device are merged and are exported, and can refer to Fig. 1.The system to solve the prior art into
It can not flexible partition image problem when row coding.Wherein, system and method for the present invention based on the same inventive concept, due to setting
The principle that standby and method solves the problems, such as is similar, therefore the implementation of apparatus and method for can be with cross-reference, and overlaps will not be repeated.
Fig. 2 is according to a kind of structural schematic diagram of trans-coding system provided in an embodiment of the present invention.As shown in Fig. 2, the equipment
It include: the first transcoding device 21 and at least one second transcoding device 22.
First transcoding device 21 is transferred to each described second turn for receiving input code flow, and by the input code flow
Decoding apparatus 22.
Second transcoding device 22, for receiving the input code flow, according to the identification information of second transcoding device and place
Reason number and preset image procossing mapping table generate and second transcoding for each input picture in input code flow
The corresponding subgraph of equipment is handled and is exported to the subgraph.Wherein, described image processing mapping table characterization each second
The size of mapping relations between transcoding device identification information and data handling capacity, the subgraph is less than or equal to data
Processing capacity.
Optionally, the first transcoding device 21 is obtained after external input code flow by input process, to input code flow
It is parsed, obtains video code flow, then video code flow is transferred to each second transcoding device 22.
Wherein, the input code flow of acquisition is real-time streams, is encoded based on following coding standard, e.g., MPEG
(Moving Picture Experts Group) coding standard, AVC/H.264 coding standard, HEVC/H.265 (High
Efficiency Video Coding) standard etc., it is transmitted based on following transport protocol: transport stream protocol (Transport
Stream, abbreviation TS), real time streaming transport protocol (Real Time Streaming Protocol, abbreviation RTSP), Streaming Media net
The agreements such as network transport protocol (HTTP Live Streaming, abbreviation HLS), the present invention not limits this.
Second transcoding device 22 generally has multiple, can be configured according to actual needs.First transcoding device 21 and second
Transcoding device 22 can be but not limited to calculate equipment, mobile terminal, equipment with transcoding function etc., the present invention to this not
Give limitation.
Optionally, second transcoding device 22 is specifically used for according to following steps for each input in input code flow
Image generates subgraph corresponding with second transcoding device:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, determine that each second transcoding is set
Standby processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each is determined
The image range that two transcoding devices are encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
Optionally, it after second transcoding device 22 receives the input code flow, is also used to:
The input code flow is decoded using preset algorithm.
Wherein, processing number be according to the setting of the processing capacity of each second transcoding device, e.g., according to from high to low,
Number consecutively.Preset algorithm can be but not limited to H.264 decoding algorithm etc., and the present invention not limits this.
Specifically, number of second transcoding device 22 according to the input picture in decoded input code flow, creation processing
Process e.g. obtains 5 input pictures then 5 treatment progress of correspondence establishment, and above-mentioned treatment progress is used for the figure respectively got
As being split, encoding, it is specifically described below.
Specifically, it is previously stored in the second transcoding device 22 at identification information and the data of each second transcoding device 22
Manage the mapping relations between capacity.Wherein, identification information can be equipment Serial Number, and data handling capacity refers to that second transcoding is set
Standby 22 are able to carry out the range of the size of the image of transcoding processing.It should be appreciated that identification information is not limited to equipment Serial Number, own
The information that the second transcoding device can be identified is all within the scope of the present invention.
It, can be at the data according to each second transcoding device 22 when determining the processing priority of the second transcoding device 22
Capacity is managed, the second transcoding device is ranked up according to sequence from high to low, is successively given a mark to the second transcoding device, then
The gross score (total priority) for calculating all second transcoding devices, successively calculates the score and gross score of each second transcoding device
Ratio, i.e. the accounting of the second transcoding device determines the image range encoded.
For example, processing number is respectively 01,02,03, each second transcoding device when all second transcoding devices have 3
Accounting (such as 1/3) it is all identical when, i.e. the data handling capacity of the second transcoding device is all identical, determines each second transcoding device
Accessible image range, and be each image range setting number.It is numbered according to the processing of each second transcoding device, for
The second transcoding device of each of 3 second transcoding devices is chosen and numbers matched image range with processing and number, obtain this
Two transcoding devices need to carry out the subgraph of coded treatment；Alternatively, according to each second transcoding device processing number, determine
Image range and preset original image processing initial position (such as choose first according to principle from left to right, from top to bottom
Pixel is as initiated process position), for the second transcoding device of each of 3 second transcoding devices, determine with this second
The corresponding subgraph of transcoding device, e.g., when the processing number of the second transcoding device is 02, firstly, being 01 according to processing number
The second transcoding device accounting, determine 01 subgraph A, further according to 02 accounting, 02 subgraph determined after subgraph A
Picture.
Wherein, the size of subgraph is generally 32 × 32 pixels, 64 × 64 pixels, 128 × 128 pixels, 64 × 128 pixels
Etc., the present invention not limits this, is equally likely to data handling capacity, it is also possible to be less than data handling capacity.
For another example, when the accounting of the second transcoding device 22 is not identical, based on the accounting of each second transcoding device, for more
The second transcoding device of each of a second transcoding device, divides each image, and biggish second transcoding device of itself accounting obtains
The subgraph arrived is larger, that is, the range for the image for needing transcoding to handle is larger, vice versa.Determine each second transcoding device
Subgraph process, to subgraph carry out compression process it is identical with above-mentioned example, no longer excessively described, further will compress after
Subgraph be handed down to corresponding second transcoding device.
Optionally, the second transcoding device 22 is specifically used for carrying out transcoding processing and defeated to the subgraph according to following steps
Out:
The subgraph is encoded；
Subgraph after coding is transmitted.
Specifically, after each second transcoding device 22 obtains subgraph, subgraph is encoded, to the subgraph after coding
As carrying out compression processing, so that such as gigabit switch is capable of handling compressed image, the requirement to broadband is reduced.Compression algorithm
Have detailed introduction in the prior art, is no longer excessively illustrated herein.
Optionally, first transcoding device 21 is also used to:
Receive the subgraph that each second transcoding device 22 transmits；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, is transmitted
The code stream to be transmitted.
Specifically, after the first transcoding device 21 receives each subgraph, according to the number of subgraph, subgraph is spliced
At code stream to be output, code stream to be output is real-time streams, can facilitate user's direct viewing.Preferably, code stream to be output is to be based on
HEVC/H.265 (High Efficiency Video Coding) coding standard is encoded, and the matter of code stream can be effectively improved
Amount.The code stream to be output can be transmitted based on following transport protocol: be based on the transport stream protocol of User Datagram Protocol (UDP)
(Transport Stream, abbreviation TS), real time streaming transport protocol (Real Time Streaming Protocol, referred to as
RTSP), stream media network transport protocol (HTTP Live Streaming, abbreviation HLS) etc., the present invention not limit this.
In the technical solution of the present invention, when carrying out compressed encoding, HEVC standard etc. can be used, it being understood, however, that
The present invention not limits this.
Fig. 3 shows a kind of flow diagram of the code-transferring method provided according to embodiments of the present invention.As shown in figure 3, should
Method starts from step S310.
In step s310, input code flow is received by the first transcoding device, and the input code flow is transferred at least
One the second transcoding device.
In step s 320, the input code flow is received by the second transcoding device, according to the mark of second transcoding device
Know information and processing number and preset image procossing mapping table, for each input picture in input code flow, generate with
The corresponding subgraph of second transcoding device.
In step S330, transcoding processing is carried out to the subgraph and is exported.
Optionally, when executing step S310, each input picture in input code flow, generate with this second
The corresponding subgraph of transcoding device, comprising:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, second transcoding device is determined
Processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each is determined
The image range that two transcoding devices are encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
Optionally, after receiving the input code flow by second transcoding device, further includes:
Input code flow is decoded using preset algorithm.
Optionally, second transcoding device that passes through carries out transcoding processing to the subgraph and exports, comprising:
The subgraph is encoded；
Subgraph after coding is transmitted.
Optionally, further includes:
Receive the subgraph of each second transcoding device transmission；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, is transmitted
The code stream to be transmitted.
A kind of trans-coding system provided by the embodiment of the present invention for the specific hardware in equipment or can be installed on equipment
On software or firmware etc..The technical effect of device provided by the embodiment of the present invention, realization principle and generation and aforementioned side
Method embodiment is identical, and to briefly describe, Installation practice part does not refer to place, can refer in corresponding in preceding method embodiment
Hold.It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, device
With the specific work process of unit, the corresponding process during reference can be made to the above method embodiment, details are not described herein.
In embodiment provided by the present invention, it should be understood that disclosed device and method, it can be by others side
Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
It connects, 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.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention.Should all it cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. a kind of trans-coding system characterized by comprising the first transcoding device and at least one second transcoding device, wherein
First transcoding device is transferred to each second transcoding for receiving input code flow, and by the input code flow
Equipment；
Second transcoding device is numbered for receiving the input code flow according to the identification information of second transcoding device and processing,
And preset image procossing mapping table generates and second transcoding device pair for each input picture in input code flow
The subgraph answered is handled and is exported to the subgraph；
Wherein, described image processing mapping table characterizes reflecting between each second transcoding device identification information and data handling capacity
Relationship is penetrated, the size of the subgraph is less than or equal to data handling capacity；
Wherein, second transcoding device is specifically used for according to following steps for each input picture in input code flow, raw
At subgraph corresponding with second transcoding device:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, each second transcoding device is determined
Processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each second turn is determined
The image range that decoding apparatus is encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
2. the system as claimed in claim 1, which is characterized in that after second transcoding device receives the input code flow, also
For:
The input code flow is decoded using preset algorithm.
3. the system as claimed in claim 1, which is characterized in that the second transcoding device is specifically used for according to following steps to the son
Image carries out transcoding processing and exports:
The subgraph is encoded；
Subgraph after coding is transmitted.
4. the system as claimed in claim 1, which is characterized in that first transcoding device is also used to:
Receive the subgraph of each second transcoding device transmission；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, described in transmission
Code stream to be transmitted.
5. a kind of code-transferring method characterized by comprising
Input code flow is received by the first transcoding device, and the input code flow is transferred at least one second transcoding device；
The input code flow is received by the second transcoding device, is numbered according to the identification information of second transcoding device and processing,
And preset image procossing mapping table generates and second transcoding device pair for each input picture in input code flow
The subgraph answered；
The subgraph is handled and is exported,
Wherein, described image processing mapping table characterizes reflecting between each second transcoding device identification information and data handling capacity
Relationship is penetrated, the size of the subgraph is less than or equal to data handling capacity；
Wherein, for each input picture in input code flow, generation is set second transcoding device that passes through with second transcoding
Standby corresponding subgraph, comprising:
According to the data handling capacity of the second transcoding device each in image procossing mapping table, each second transcoding device is determined
Processing priority；
According to the processing priority and preset total priority of determining each second transcoding device, each second turn is determined
The image range that decoding apparatus is encoded；
According to image range processing number and determined, the corresponding subgraph of the second transcoding device is generated.
6. method as claimed in claim 5, which is characterized in that receive the input code flow by second transcoding device
Afterwards, further includes:
The input code flow is decoded using preset algorithm.
7. method as claimed in claim 5, which is characterized in that carry out transcoding processing to the subgraph by the second transcoding device
And it exports, comprising:
The subgraph is encoded；
Subgraph after coding is transmitted.
8. method as claimed in claim 5, which is characterized in that further include:
Receive the subgraph of each second transcoding device transmission；
According to the identification information of each subgraph, processing is merged to each subgraph, obtains code stream to be transmitted, described in transmission
Code stream to be transmitted.
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| CN109379591B (en) * | 2018-10-23 | 2021-08-06 | 深圳市网心科技有限公司 | Image transcoding method, electronic device and computer readable storage medium |
| CN109640162B (en) * | 2018-12-25 | 2021-05-14 | 北京数码视讯软件技术发展有限公司 | Code stream conversion method and system |
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