CN106101710A - A kind of distributed video transcoding method and device - Google Patents
A kind of distributed video transcoding method and device Download PDFInfo
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- CN106101710A CN106101710A CN201610743840.6A CN201610743840A CN106101710A CN 106101710 A CN106101710 A CN 106101710A CN 201610743840 A CN201610743840 A CN 201610743840A CN 106101710 A CN106101710 A CN 106101710A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000547 structure data Methods 0.000 description 2
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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
- 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 or manipulating encoded video stream scene graphs
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
This application discloses a kind of distributed video transcoding method, including: the video file that user is uploaded by master server is split, and forms video segment；Distributed storage devices receives the described video segment that master server sends, and is resolved by video segment, obtains key-value pair；Obtain the described key-value pair with transcoding task amount respective numbers from server according to transcoding task amount, further according to key-value pair, the described video segment in distributed storage devices is downloaded, and the video segment after downloading is carried out transcoding；Distributed storage devices receives the described video segment after the transcoding that server sends, and resolves the video segment after transcoding, obtains the key-value pair after transcoding；Master server according in the key-value pair distributed storage devices after transcoding state transcoding after video segment be downloaded and merge.Distributed video transcoding method can effectively reduce the time of video code conversion, improves transcoding efficiency.Disclosed herein as well is a kind of distributed video transcoding device.
Description
Technical field
The present invention relates to Video Transcoding Technology field, more particularly, it relates to a kind of distributed video transcoding method, also relate to
And one distributed video transcoding device.
Background technology
Along with cell-phone camera and the development of the Internet, video sharing has become the most common, due to regarding of uploading
Frequency generally form, resolution differ, and the server playing video needs video to carry out transcoding i.e. video by a kind of form conversion
Become another form, such as: MP4 form changes into flv form.Traditional transcoding server is unit transcoding server, for regarding
Size and the number of files simultaneously uploaded of frequency are the most restricted, cannot process in time for the video uploaded in a large number, and the transcoding time is long,
Even the most heavily cause server discontinuing operation due to load.Or utilize associate with master server to have multiple stage from server, use
To process the task of master server distribution, when using multiple servers transcoding, but each video file only can be assigned to it
In carry out transcoding on a station server, when single video file is excessive, the problem that still there is transcoding overlong time, meanwhile,
Do not consider the configuration from server when using burst transcoding, the time from server process subtask can be caused different, finally
Reduce whole task efficiency.
Therefore, how to reduce the time of video code conversion, improving transcoding efficiency is that those skilled in the art are badly in need of solving
Technical problem.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of distributed video transcoding method, it is possible to effectively reduce video
The time of transcoding, improve transcoding efficiency.
For achieving the above object, the present invention provides following technical scheme:
A kind of distributed video transcoding method, including:
The video file that user is uploaded by master server is split, and forms video segment；
Distributed storage devices receives the described video segment that described master server sends, and is carried out by described video segment
Resolve, obtain key-value pair；
The described key-value pair with described transcoding task amount respective numbers is obtained according to transcoding task amount from server, further according to
Described video segment in described distributed storage devices is downloaded by described key-value pair, and enters the video segment after downloading
Row transcoding；
Described distributed storage devices receives described described video segment after the transcoding that server sends, and to described
Video segment after transcoding resolves, and obtains the key-value pair after transcoding；
After described master server is according to the described transcoding in distributed storage devices described in the key-value pair after described transcoding
Video segment is downloaded and merges.
Preferably, in above-mentioned distributed video transcoding method, described from server according to transcoding task amount obtain and institute
Before stating the described key-value pair of transcoding task amount respective numbers, also include:
Described from server acquisition own configuration information, calculate described transcoding task amount according to described configuration information.
Preferably, in above-mentioned distributed video transcoding method, described from server according to transcoding task amount obtain and institute
State the described key-value pair of transcoding task amount respective numbers, specifically include:
Judge whether the described key-value pair quantity obtained reaches described transcoding task amount；
If described key-value pair quantity is less than described transcoding task amount, then described key-value pair is write text；
If described key-value pair quantity is equal to described transcoding task amount, then stop receiving described key-value pair.
Preferably, in above-mentioned distributed video transcoding method, described to download after video segment carry out transcoding, specifically
Including:
Video segment after all described downloads is carried out transcoding according to the transcoding parameter pre-set simultaneously.
Present invention also offers a kind of distributed video transcoding system, including:
Master server, splits for the video file uploading user, forms video segment, is additionally operable to according to described
The video segment after described transcoding in distributed storage devices described in key-value pair after transcoding is downloaded and merges；
Distributed storage devices, for receiving the described video segment that described master server sends, and cuts described video
Sheet resolves, and obtains key-value pair, is additionally operable to receive described described video segment after the transcoding that server sends, and to institute
State the video segment after transcoding to resolve, obtain the key-value pair after transcoding；
From server, for obtaining the described key-value pair with described transcoding task amount respective numbers according to transcoding task amount,
Further according to described key-value pair, the described video segment in described distributed storage devices is downloaded and transcoding；
Preferably, in above-mentioned distributed video transcoding device, described master server includes:
Video cutting module, splits for the video file uploading user, forms video segment；
Video merges module, for according to the described transcoding in distributed storage devices described in the key-value pair after described transcoding
After video segment merge；
First video transmission module, for by described video segment transmission extremely described distributed storage devices, being additionally operable to root
It is downloaded according to the video segment after the described transcoding in distributed storage devices described in the key-value pair after described transcoding；
Preferably, in above-mentioned distributed video transcoding device, described include from server:
Key-value pair acquisition module, for obtaining the described key with described transcoding task amount respective numbers according to transcoding task amount
It is right to be worth；
Video code conversion module, for carrying out transcoding to the video segment after downloading；
Second video transmission module is for cutting the described video in described distributed storage devices according to described key-value pair
Sheet is downloaded, and is additionally operable to the described video segment after the transcoding sent to described distributed storage devices.
Preferably, in above-mentioned distributed video transcoding device, described distributed storage devices includes:
Video segment acquisition module, for receiving the described video segment that described master server sends, is additionally operable to receive institute
State the described video segment after the transcoding that server sends；
Video segment parsing module, for being resolved by described video segment, obtains key-value pair, is additionally operable to described turn
Video segment after Ma resolves, and obtains the key-value pair after transcoding.
From technique scheme it can be seen that a kind of distributed video transcoding method provided by the present invention, including: main clothes
The video file that user is uploaded by business device is split, and forms video segment；Distributed storage devices receives described master server
The described video segment sent, and described video segment is resolved, obtain key-value pair；From server according to transcoding task amount
Obtain the described key-value pair with described transcoding task amount respective numbers, further according to described key-value pair by described distributed storage devices
In described video segment be downloaded, and to download after video segment carry out transcoding；Described distributed storage devices receives
Described described video segment after the transcoding that server sends, and the video segment after described transcoding is resolved, obtain
Key-value pair after transcoding；Described master server turns according in distributed storage devices described in the key-value pair after described transcoding
Video segment after Ma is downloaded and merges.
A kind of distributed video transcoding method that the present invention provides, the jumbo video file uploading user is carried out point
Cut, obtain the video segment of low capacity, from server, video segment is carried out transcoding by multiple, reduce the transcoding time, simultaneously
The video uploaded in a large number is processed in time.Additionally, also calculate each transcoding task amount from server, not exclusively depend on
Rely the method for salary distribution in master server so that each is from server transcoding time consistency, it is to avoid a certain the slowest from server transcoding
Cause overall transcoding time lengthening.
A kind of distributed video transcoding system that the present invention provides, it is possible to reduce the time of video code conversion, improves transcoding effect
Rate.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
A kind of distributed video transcoding method schematic diagram that Fig. 1 provides for the embodiment of the present invention；
A kind of distributed video transcoding device schematic diagram that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Refer to a kind of distributed video transcoding method schematic diagram that Fig. 1, Fig. 1 provide for the embodiment of the present invention.
In a kind of specific embodiment, distributed storage devices can be hdfs storage device and spark distribution dress
Putting, master server (host node) only, the multiple computers of multiple stage diverse location/master server server, three passes through
The cluster that network forms.It is pointed out that from the quantity of server unrestricted, can arbitrarily add from service
Device, it is only necessary to hadoop program and modules, copies to be extended from server, and starts corresponding program.
A kind of distributed video transcoding method is provided, comprises the steps:
Step S1: the video file that user is uploaded by master server is split, forms video segment；
Wherein, the video file that user uploads is relatively big, is carried out being divided into less section, it is simple to follow-up by less
Video segment carries out transcoding.
Step S2: distributed storage devices receives the described video segment that described master server sends, and by described video
Section resolves, and obtains key-value pair；
Wherein, by InputFomat interface, video segment being resolved to such as<key, value>key-value pair, key is file
Name, value is file path.
Step S3: obtain the described key assignments with described transcoding task amount respective numbers according to transcoding task amount from server
Right, further according to described key-value pair, the described video segment in described distributed storage devices is downloaded, and to download after
Video segment carries out transcoding；
First to add up the configuration information from server, mainly cpu check figure, memory size, determine that this can be same from server
Time transcoding optimal number, then receive key-value pair.Being provided with 2 map programs with membership relation from server, one is
According to load-receipt key assignments, processing text structure data, another map download program video slicing carries out transcoding, processes non-
Text structure data.Often receive a key-value pair and first do not carry out transcoding program, but by a map journey from server
Sequence is write key-value pair inside a text, and key-value pair quantity to be received is equal to the optimal task quantity above calculated
Time, stop receiving and starting another one map program, start multiple thread according to the key-value pair quantity received simultaneously and carry out turning
Code.
Obtain the described key-value pair with described transcoding task amount respective numbers from server according to transcoding task amount, refer specifically to
Be can to obtain a key-value pair from server just it to be carried out transcoding, it is also possible to wait key-value pair and the transcoding task amount of acquisition
Time identical, carrying out transcoding, all can improve transcoding efficiency.
Step S4: described distributed storage devices receives described described video segment after the transcoding that server sends,
And the video segment after described transcoding is resolved, obtain the key-value pair after transcoding；
Wherein, the key-value pair after the transcoding of output such as<key1, value1>, wherein key1 is filename, and value1 is for turning
File path after Ma.
Step S5: described master server turns according in distributed storage devices described in the key-value pair after described transcoding
Video segment after Ma is downloaded and merges.
A kind of distributed video transcoding method that the present invention provides, the jumbo video file uploading user is carried out point
Cut, obtain the video segment of low capacity, from server, video segment is carried out transcoding by multiple, reduce the transcoding time, simultaneously
The video uploaded in a large number is processed in time.Additionally, also calculate each transcoding task amount from server, not exclusively depend on
Rely the method for salary distribution in master server so that each is from server transcoding time consistency, it is to avoid a certain the slowest from server transcoding
Cause overall transcoding time lengthening.
Further, in above-mentioned distributed video transcoding method, described from server according to transcoding task amount obtain with
Before the described key-value pair of described transcoding task amount respective numbers, also include:
Described from server acquisition own configuration information, calculate described transcoding task amount according to described configuration information.Wherein,
Resolve configuration information from the map program of server, calculate task according to place check figure and memory size in the cpu of server
Amount, so that transcoding reaches peak efficiency.
On the basis of above-mentioned embodiment, described from server according to transcoding task amount obtain with described transcoding task amount
The described key-value pair of respective numbers, specifically includes:
Judge whether the described key-value pair quantity obtained reaches described transcoding task amount；
If described key-value pair quantity is less than described transcoding task amount, then described key-value pair is write text；
If described key-value pair quantity is equal to described transcoding task amount, then stop receiving described key-value pair.
On the basis of above-mentioned embodiment, described to download after video segment carry out transcoding, specifically include:
Video segment after all described downloads is carried out transcoding according to the transcoding parameter pre-set simultaneously.
Refer to a kind of distributed video transcoding device schematic diagram that Fig. 2, Fig. 2 provide for the embodiment of the present invention.
Present invention also offers a kind of distributed video transcoding system, including:
Master server 01, splits for the video file uploading user, forms video segment, is additionally operable to according to institute
State the video segment after the described transcoding in distributed storage devices described in the key-value pair after transcoding be downloaded and merge；
Distributed storage devices 02, for receiving the described video segment that described master server sends, and by described video
Section resolves, and obtains key-value pair, is additionally operable to receive described described video segment after the transcoding that server sends, and right
Video segment after described transcoding resolves, and obtains the key-value pair after transcoding；
From server 03, for obtaining the described key assignments with described transcoding task amount respective numbers according to transcoding task amount
Right, further according to described key-value pair, the described video segment in described distributed storage devices is downloaded and transcoding；
Further, in above-mentioned distributed video transcoding device, described master server includes:
Video cutting module, splits for the video file uploading user, forms video segment；
Video merges module, for according to the described transcoding in distributed storage devices described in the key-value pair after described transcoding
After video segment merge；
First video transmission module, for by described video segment transmission extremely described distributed storage devices, being additionally operable to root
It is downloaded according to the video segment after the described transcoding in distributed storage devices described in the key-value pair after described transcoding；
Further, in above-mentioned distributed video transcoding device, described include from server:
Key-value pair acquisition module, for obtaining the described key with described transcoding task amount respective numbers according to transcoding task amount
It is right to be worth；
Video code conversion module, for carrying out transcoding to the video segment after downloading；
Second video transmission module is for cutting the described video in described distributed storage devices according to described key-value pair
Sheet is downloaded, and is additionally operable to the described video segment after the transcoding sent to described distributed storage devices.
Further, in above-mentioned distributed video transcoding device, described distributed storage devices includes:
Video segment acquisition module, for receiving the described video segment that described master server sends, is additionally operable to receive institute
State the described video segment after the transcoding that server sends；
Video segment parsing module, for being resolved by described video segment, obtains key-value pair, is additionally operable to described turn
Video segment after Ma resolves, and obtains the key-value pair after transcoding.
A kind of distributed video transcoding system that the present invention provides, it is possible to reduce the time of video code conversion, improves transcoding effect
Rate.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (8)
1. a distributed video transcoding method, it is characterised in that including:
The video file that user is uploaded by master server is split, and forms video segment；
Distributed storage devices receives the described video segment that described master server sends, and is solved by described video segment
Analysis, obtains key-value pair；
The described key-value pair with described transcoding task amount respective numbers is obtained according to transcoding task amount, further according to described from server
Described video segment in described distributed storage devices is downloaded by key-value pair, and carries out turning to the video segment after downloading
Code；
Described distributed storage devices receives described described video segment after the transcoding that server sends, and to described transcoding
After video segment resolve, obtain the key-value pair after transcoding；
Described master server is according to the video after the described transcoding in distributed storage devices described in the key-value pair after described transcoding
Section is downloaded and merges.
2. distributed video transcoding method as claimed in claim 1, it is characterised in that described from server according to transcoding task
Before amount obtains the described key-value pair with described transcoding task amount respective numbers, also include:
Described from server acquisition own configuration information, calculate described transcoding task amount according to described configuration information.
3. distributed video transcoding method as claimed in claim 2, it is characterised in that described from server according to transcoding task
Amount obtains the described key-value pair with described transcoding task amount respective numbers, specifically includes:
Judge whether the described key-value pair quantity obtained reaches described transcoding task amount；
If described key-value pair quantity is less than described transcoding task amount, then described key-value pair is write text；
If described key-value pair quantity is equal to described transcoding task amount, then stop receiving described key-value pair.
4. distributed video transcoding method as claimed in claim 3, it is characterised in that described video segment after downloading is entered
Row transcoding, specifically includes:
Video segment after all described downloads is carried out transcoding according to the transcoding parameter pre-set simultaneously.
5. a distributed video transcoding system, it is characterised in that including:
Master server, splits for the video file uploading user, forms video segment, is additionally operable to according to described transcoding
After key-value pair described in video segment after described transcoding in distributed storage devices be downloaded and merge；
Distributed storage devices, for receiving the described video segment that described master server sends, and enters described video segment
Row resolves, and obtains key-value pair, is additionally operable to receive described described video segment after the transcoding that server sends, and to described turn
Video segment after Ma resolves, and obtains the key-value pair after transcoding；
From server, for obtaining the described key-value pair with described transcoding task amount respective numbers, then root according to transcoding task amount
According to described key-value pair, the described video segment in described distributed storage devices is downloaded and transcoding.
6. distributed video transcoding device as claimed in claim 5, it is characterised in that described master server includes:
Video cutting module, splits for the video file uploading user, forms video segment；
Video merges module, after according to the described transcoding in distributed storage devices described in the key-value pair after described transcoding
Video segment merges；
First video transmission module, for by described video segment transmission extremely described distributed storage devices, being additionally operable to according to institute
State the video segment after the described transcoding in distributed storage devices described in the key-value pair after transcoding to be downloaded.
7. distributed video transcoding device as claimed in claim 6, it is characterised in that described include from server:
Key-value pair acquisition module, for obtaining the described key assignments with described transcoding task amount respective numbers according to transcoding task amount
Right；
Video code conversion module, for carrying out transcoding to the video segment after downloading；
Second video transmission module is for entering the described video segment in described distributed storage devices according to described key-value pair
Row is downloaded, and is additionally operable to the described video segment after the transcoding sent to described distributed storage devices.
8. distributed video transcoding device as claimed in claim 6, it is characterised in that described distributed storage devices includes:
Video segment acquisition module, for receiving the described video segment that described master server sends, be additionally operable to receive described from
Described video segment after the transcoding that server sends；
Video segment parsing module, for being resolved by described video segment, obtains key-value pair, after being additionally operable to described transcoding
Video segment resolve, obtain the key-value pair after transcoding.
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| CN110113660A (en) * | 2019-02-27 | 2019-08-09 | 咪咕视讯科技有限公司 | Method, device, terminal and storage medium for transcoding time length estimation |
| CN110267118A (en) * | 2019-06-18 | 2019-09-20 | 北京奇艺世纪科技有限公司 | A kind of video distribution method and apparatus and computer readable storage medium |
| CN113411586A (en) * | 2021-05-20 | 2021-09-17 | 北京睿芯高通量科技有限公司 | Transcoding system and block uploading method thereof |
| CN117750040A (en) * | 2024-02-20 | 2024-03-22 | 浙江宇视科技有限公司 | Video service balancing method, device, equipment and medium of intelligent server cluster |
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| CN117750040A (en) * | 2024-02-20 | 2024-03-22 | 浙江宇视科技有限公司 | Video service balancing method, device, equipment and medium of intelligent server cluster |
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