CN104159127B - A kind of video transcoding method, apparatus and system - Google Patents
A kind of video transcoding method, apparatus and system Download PDFInfo
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- CN104159127B CN104159127B CN201410415885.1A CN201410415885A CN104159127B CN 104159127 B CN104159127 B CN 104159127B CN 201410415885 A CN201410415885 A CN 201410415885A CN 104159127 B CN104159127 B CN 104159127B
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Abstract
The embodiment of the invention discloses a kind of video transcoding method, apparatus and system, a kind of video transcoding method, comprising: obtain the target bit rate of video file to be transcoded and the video file to be transcoded；The video file to be transcoded is split, at least two video subfiles are obtained；The video subfile that segmentation obtains is distributed into more transcoders, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that the transcoder for being assigned video subfile carries out transcoding to the video subfile that distribution obtains according to the target bit rate of the video file to be transcoded, the video subfile with target bit rate is generated；Wherein, any one video subfile is only assigned to a transcoder.Using above-mentioned technical proposal, the embodiment of the present invention can call more transcoders to carry out transcoding to a video file simultaneously, therefore can shorten the transcoding time, and improve transcoding efficiency.
Description
Technical field
The present invention relates to technical field of video processing, in particular to a kind of video transcoding method, apparatus and system.
Background technique
With the fast development of network multimedia technology, the broadcasting form of video file is no longer limited to certain specific view
Gradually there is SD video code flow, HD video code stream, ultra high-definition video code flow etc. and meets heterogeneous networks broadcasting ring in frequency code stream
The video code flow in border.This just needs video service provider to carry out transcoding to video file, to obtain the view of various clarity
Frequency code stream, so that video player plays out.
Existing Video Transcoding Technology is assigned to a transcoding when carrying out video code conversion, by a complete video file
Transcoding is carried out on device.Since video file is larger, a complete video file carries out transcoding in a transcoder will
It takes a long time, efficiency is lower.Especially in the biggish transcoding task of execution code rate, the above problem is especially prominent.
If it is possible to propose a kind of quick code-transferring method, it undoubtedly can be to the system of the high bit-rate video of Video service quotient
Make generation positive effect.
Summary of the invention
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of video transcoding method, apparatus and system, specific skills
Art scheme is as follows:
A kind of video transcoding method, comprising:
Obtain the target bit rate of video file to be transcoded and the video file to be transcoded；
The video file to be transcoded is split, at least two video subfiles are obtained；
The video subfile that segmentation obtains is distributed into more transcoders, and is sent out to the transcoder for being assigned video subfile
The target bit rate of the video file to be transcoded is sent, so that the transcoder for being assigned video subfile is according to described to be transcoded
The target bit rate of video file carries out transcoding to the video subfile that distribution obtains, and generates the video Ziwen with target bit rate
Part；Wherein, any one video subfile is only assigned to a transcoder.
Optionally, further includes:
Obtain to the more transcoder transcodings, the video subfile with target bit rate merges, and obtains complete
Target bit rate video file.
Optionally, described that the video file to be transcoded is split, obtain at least two video subfiles, comprising:
The video file to be transcoded is split according to duration, obtains at least two video with identical duration
File；
Or
The video file to be transcoded is split according to file size, obtaining at least two has same file size
Video subfile.
Optionally, described that the video file to be transcoded is split, obtain at least two video subfiles, comprising:
The video file to be transcoded for being more than threshold value to file size is split, and obtains at least two video subfiles.
Optionally, further includes:
Obtain the transcoding progress of each transcoder in the more transcoders；
It determines that transcoding progress has abnormal transcoder, and transcoding progress is existed to the video Ziwen in abnormal transcoder
Part is assigned in another transcoder and carries out transcoding.
Optionally, another transcoder is the idle transcoder for not carrying out transcoding at current time.
Optionally, the transcoding progress for obtaining each transcoder in the more transcoders, comprising:
Periodically acquire the transcoding progress of each transcoder in the more transcoders；
Or
Receive the transcoding progress that each transcoder uploads in the more transcoders.
Optionally, obtained each video subfile of dividing includes that at least one strategy influences coding quality GOP, institute
Stating the first frame in GOP is key frame.
A kind of video code conversion device, comprising:
Data obtaining module, for obtaining the target bit rate of video file to be transcoded and the video file to be transcoded；
File division module, the video file to be transcoded for obtaining to the data obtaining module are split, obtain
At least two video subfiles；
File distribution module, the video subfile for obtaining the file division module segmentation distribute to more transcodings
Device, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that the distribution
Have the transcoder of video subfile according to the video file to be transcoded target bit rate to the obtained video subfile of distribution into
Row transcoding generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to a transcoding
Device.
Optionally, further includes:
File combination module, for video subfile being obtained to the more transcoder transcodings, with target bit rate
It merges, obtains complete target bit rate video file.
Optionally, the file division module, is specifically used for:
The video file to be transcoded that the data obtaining module obtains is split according to duration, obtains at least two tools
There is the video subfile of identical duration；
Or
The video file to be transcoded that the data obtaining module obtains is split according to file size, obtains at least two
A video subfile with same file size.
Optionally, the file division module, is specifically used for:
The video file to be transcoded that the file size that the data obtaining module obtains is more than threshold value is split, is obtained
At least two video subfiles.
Optionally, further includes:
Progress obtains module, for obtaining the transcoding progress of each transcoder in the more transcoders；
Task allocating module determines that transcoding progress is deposited for the transcoding progress according to acquired in progress acquisition module
It is assigned in another transcoder in abnormal transcoder, and by transcoding progress in the presence of the video subfile in abnormal transcoder
Carry out transcoding.
Optionally, another transcoder is the idle transcoder for not carrying out transcoding at current time.
Optionally, the progress obtains module, is specifically used for:
Periodically acquire the transcoding progress of each transcoder in the more transcoders；
Or
Receive the transcoding progress that each transcoder uploads in the more transcoders.
Optionally, each video subfile that the file division module segmentation obtains includes that at least one strategy influences to compile
First frame in code quality GOP, the GOP is key frame.
A kind of video code conversion system, comprising:
Video code conversion device and more transcoders；Wherein, the video code conversion device and the more transcoder communication links
It connects, the video code conversion device includes:
Data obtaining module, for obtaining the target bit rate of video file to be transcoded and the video file to be transcoded；
File division module, the video file to be transcoded for obtaining to the data obtaining module are split, obtain
At least two video subfiles；
File distribution module, the video subfile for obtaining the file division module segmentation distribute to more transcodings
Device, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that the distribution
Have the transcoder of video subfile according to the video file to be transcoded target bit rate to the obtained video subfile of distribution into
Row transcoding generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to a transcoding
Device.
Using above-mentioned technical proposal, video transcoding method provided in an embodiment of the present invention, apparatus and system can be treated and turn
Code video file is split, and the video subfile that segmentation obtains is distributed to different transcoders, so that more transcoders
Transcoded video file is treated simultaneously carries out transcoding.The embodiment of the present invention can call more transcoders simultaneously to a video file
Transcoding is carried out, therefore the transcoding time can be shortened, and improve transcoding efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of video transcoding method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another video transcoding method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another video transcoding method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of video code conversion device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another video code conversion device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another video code conversion device provided in an embodiment of the present invention.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the present invention, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Universal and network bandwidth with Online Video service is continuously increased, and Online Video service provider is faced with
More and more high definitions or ultra high-definition video code conversion demand.Since the high resolution of HD video and ultra high-definition video, code rate are big,
Transcoding complexity is the several times of SD video.Transcoding is carried out to video file based on the video transcoding method of single machine using existing
When, with the increase of code rate, the transcoding time linearly increases, and the transcoding process of video file takes a long time, and transcoding efficiency is lower,
To solve the above-mentioned problems, the embodiment of the invention provides a kind of video transcoding methods, apparatus and system.
A kind of video transcoding method provided in an embodiment of the present invention is introduced first below.
It should be noted that video code conversion device of the present invention method suitable for video code conversion system, in reality
In the application of border, which may include: video code conversion device and more transcoders, which can be
Electronic equipment with control function.
As shown in Figure 1, a kind of video transcoding method provided in an embodiment of the present invention, may include:
S101 obtains the target bit rate of video file to be transcoded and video file to be transcoded.
Code rate in the embodiment of the present invention can be understood as data transmission when the unit time transmission data bits, usually with
Kbps is unit expression.To a certain extent, the code rate of video file is higher, and the resolution ratio of video is also higher, the picture of video
Face quality is better, is thus also just understood that for same video file, the code rate of the optimal ultra high-definition video of image quality
It is worth larger, the code rate value of HD video is taken second place, and the code rate value of SD video is smaller.
In addition, the calculation formula based on video code rate: the current code rate of video=(video file size * 8*1024)/broadcasting
Time, for the video file that a playing duration is fixed, the current code rate of video is higher, and the file of video file is bigger, than
A length of TV play in 1 hour when such as a collection, the file size of HD video is about 10 times of the file of SD video.
Optionally, in one embodiment of the embodiment of the present invention, when needing to carry out transcoding to video file, Ke Yizhi
Connect the equipment to video file to be transcoded is stored with, the request video file to be transcoded.
It optionally,, can be with when needing to carry out transcoding to video file in an embodiment of the embodiment of the present invention
The equipment for being stored with video file to be transcoded is waited to send the video file to be transcoded automatically.
S102 treats transcoded video file and is split, and obtains at least two video subfiles.
It optionally, can be according to duration to the video text to be transcoded in an embodiment of the embodiment of the present invention
Part is split, and obtains at least two video subfiles with identical duration.Such as the electricity for being 60 minutes for playing duration
Depending on play, it can divide to obtain a length of 6 minutes at 10 video subfiles.
It optionally, can be according to file size to the view to be transcoded in an embodiment of the embodiment of the present invention
Frequency file is split, and obtains at least two video subfiles with same file size.Such as video file size
For the film of 700M, can divide to obtain the video subfile that 10 file sizes are 70M.
It should be noted that treating transcoded video file according to duration or file size is split the only present invention
Two kinds of embodiments of embodiment, furthermore, it is possible to be set according to actual conditions to above-mentioned duration and file size value.
It is understood that a video file includes that multiple strategies influence coding quality GOP, each GOP is understood that
For a series of continuous video frames, key frame of video I frame is contained at least one in each GOP.Particularly, in order to avoid to video
Broadcasting pictures effect impacts, and when treating transcoded video file and being split, the video subfile for guaranteeing that segmentation obtains is equal
Comprising at least one complete GOP, and the first frame in the GOP is I frame.In order to avoid unsweet sound phenomenon appearance, can treat
Before transcoded video file is split, the audio of above-mentioned video file to be transcoded is encoded.
In practical applications, based on the considerations of transcoding efficiency, a Filtering system can be increased, which can lead to
The file size for judging video file is crossed, to decide whether to be split processing.Preferably, it can choose to file size
Video file to be transcoded more than threshold value is split, and obtains at least two video subfiles.It should be noted that can basis
Actual conditions set the value of the threshold value in the embodiment of the present invention, and the embodiment of the present invention is not construed as limiting this.
It should be noted that each video subfile that the segmentation in the embodiment of the present invention obtains is continuous one section of content
Video file.
The obtained video subfile of segmentation is distributed to more transcoders by S103, and to being assigned turning for video subfile
Code device sends the target bit rate of video file to be transcoded, so as to be assigned the transcoder of video subfile according to video text to be transcoded
The target bit rate of part carries out transcoding to the video subfile that distribution obtains, and generates the video subfile with target bit rate；Wherein,
Any one video subfile is only assigned to a transcoder.
Transcoder in the embodiment of the present invention can be the electronic equipment for having video code conversion function, it can be according to target
Video file transcoding is the video with target bit rate by code rate.
In embodiments of the present invention, it is split treating transcoded video file, it, can be by institute after obtaining video subfile
The video subfile of acquisition distributes to more transcoders, for example, including 10 transcodings in a very small video code conversion system
Machine, a video file to be transcoded are divided into 5 video subfiles, then 5 video subfiles can be distributed to 5
Machine, every machine assignment obtain 1 video subfile.
Furthermore, it is necessary to target bit rate be sent to the transcoder for being assigned video subfile, so that the transcoder is according to target
Code rate carries out transcoding to the video subfile that distribution obtains, for example, the target bit rate of video file to be transcoded is 4933kbps,
Need for target bit rate to be sent to 5 transcoders for being assigned video subfile, this 5 transcoders, will be upper according to target bit rate
Stating 5 video subfile transcodings is the video that code rate is 4933kbps.
Preferably, the video file to be transcoded in the embodiment of the present invention can carry priority tag and/or type mark
Know.Each video subfile can also carry the priority tag and/or type mark for being split preceding video file to be transcoded
Know.
The video file to be transcoded for carrying priority tag is split, the video subfile of acquisition carries excellent
First grade mark；Further, when carrying out transcoding to video subfile, it can control transcoder to the view for carrying priority tag
Frequency subfile carries out preferential transcoding.
The video file to be transcoded for carrying type identification is split, the video subfile of acquisition carries type
Mark；Further, the video file to be transcoded for carrying preset kind mark can be split and/or transcoding first.
It is of course also possible to which the video subfile that the video file to be transcoded for carrying different type mark is divided is distributed to respectively
Different transcoders.Such as: the video Ziwen that the video file to be transcoded for carrying first kind mark is split
Part distributes to each transcoder in the first transcoder group；The video file to be transcoded for carrying Second Type mark is split
Obtained video subfile distributes to each transcoder in the second transcoder group.In this way, each transcoder can be with single to carry out
The transcoder of type transcoding, this transcoder are lower compared to cost for the transcoder that can carry out multiple types transcoding
It is honest and clean, simultaneously because having a single function, therefore transcoding efficiency is higher.
It corresponds in practical application, above situation can be summarized with the concept in transcoding channel, i.e., it is different types of
It is video file, can be handled using the different transcoding processes of different transcoder or same transcoder.
It can be seen that video transcoding method provided in an embodiment of the present invention, can treat transcoded video file and be split,
And the video subfile that segmentation obtains is distributed into different transcoders, so that more transcoders treat transcoded video file simultaneously
Carry out transcoding.The embodiment of the present invention can call more transcoders to carry out transcoding to a video file simultaneously, therefore can contract
The short transcoding time, and improve transcoding efficiency.
Optionally, in one embodiment of the invention, as shown in Fig. 2, after above-mentioned S103, can also include:
S104 obtains the transcoding progress of each transcoder in the more transcoders.
Transcoding progress in the embodiment of the present invention is the transcoding task amount that transcoder has been completed in preset duration, such as
For the video file of a 30M, transcoder transcoding 15M in 5 minutes, it can be said that transcoding progress is 50%.
Optionally, it in an embodiment of the embodiment of the present invention, can periodically acquire in the more transcoders
The transcoding progress of each transcoder.For example, the transcoding progress an of transcoder can be obtained every 50s.
Optionally, in an embodiment of the embodiment of the present invention, each turn is can receive in the more transcoders
The transcoding progress that code device uploads.
In practical applications, the concept that transcoding heartbeat can be used summarizes above embodiment, i.e., each heartbeat,
Obtain the transcoding progress an of transcoder.
Since video code conversion is an intensive business, the transcoding progress of transcoder is monitored, once transcoder goes out
Existing delay machine etc. is abnormal, can handle it in time.Furthermore, it is possible to which the information obtained to monitoring arranges, next time encounters class again
As transcoding task, the usage amount of machine resources can be estimated, for the reasonable distribution of machine resources have guidance anticipate
Justice.
S105 determines that transcoding progress has abnormal transcoder, and transcoding progress is existed to the view in abnormal transcoder
Frequency subfile is assigned in another transcoder and carries out transcoding.
Optionally, another transcoder can be the higher transcoder of CPU frequency；
Optionally, another transcoder can not carry out the idle transcoder of transcoding for current time；
In embodiments of the present invention, in the transcoding progress exception of the initiations such as transcoder delay machine or transcoding process interrupt, energy
It is enough video file is distributed into the higher transcoder of CPU frequency or current time automatically not carry out the idle transcoder of transcoding and carry out
Transcoding, so that the influence that transcoder operation irregularity operates video code conversion is reduced, dependable with function with higher.
Optionally, in one embodiment of the invention, as shown in figure 3, after above-mentioned S103, can also include:
S106, obtain to the more transcoder transcodings, the video subfile with target bit rate merge, and obtain
Complete target bit rate video file.
In embodiments of the present invention, more transcoder transcodings of assigned video subfile being obtained, have mesh
The video subfile of coding rate merges into a complete target bit rate video file, to facilitate backstage editor to the target bit rate
Video file is audited.
Additionally it is possible to generate corresponding different video player according to the above-mentioned video subfile with target bit rate
Video metadata, for example the m3u8 file corresponding to video player in ios operating system can be generated.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of video code conversion devices.
As shown in figure 4, a kind of video code conversion device provided in an embodiment of the present invention, may include:
Data obtaining module 401, for obtaining the target bit rate of video file to be transcoded and the video file to be transcoded；
File division module 402, the video file to be transcoded for obtaining to the data obtaining module 401 divide
It cuts, obtains at least two video subfiles；
File distribution module 403, the video subfile for obtaining the file division module 402 segmentation are distributed to more
Platform transcoder, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that institute
It states and is assigned video that the transcoder of video subfile obtains distribution according to the target bit rate of the video file to be transcoded
File carries out transcoding, generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to one
Transcoder.
Optionally, in an embodiment of the embodiment of the present invention, the file division module 402 can be specifically same
In:
It is split according to the video file to be transcoded that duration obtains the data obtaining module 401, obtains at least two
A video subfile with identical duration；
Or
The video file to be transcoded that the data obtaining module 401 obtains is split according to file size, is obtained
To at least two video subfiles with same file size.
Optionally, in an embodiment of the embodiment of the present invention, the file division module 402 can be used specifically
In:
The video file to be transcoded that the file size that the data obtaining module 401 obtains is more than threshold value is split,
Obtain at least two video subfiles.
Optionally, in one embodiment of the invention, as shown in figure 5, can also include:
Progress obtains module 404, for obtaining the transcoding progress of each transcoder in the more transcoders；
Task allocating module 405 determines transcoding for the transcoding progress according to acquired in progress acquisition module 404
There is abnormal transcoder in progress, and transcoding progress is existed to the video subfile in abnormal transcoder, be assigned to another turn
Transcoding is carried out in code device.
Preferably, another transcoder is the idle transcoder for not carrying out transcoding at current time.
Optionally, in an embodiment of the embodiment of the present invention, the progress obtains module 404, can be with:
Periodically acquire the transcoding progress of each transcoder in the more transcoders；
Or
Receive the transcoding progress that each transcoder uploads in the more transcoders.
Optionally, in one embodiment of the invention, as shown in fig. 6, the device can also include:
File combination module 406, for video Ziwen being obtained to the more transcoder transcodings, with target bit rate
Part merges, and obtains complete target bit rate video file.
Optionally, in one embodiment of the invention, the file division module 402 divides obtained each video Ziwen
Part includes that at least one strategy influences coding quality GOP, and the first frame in the GOP is key frame.
It can be seen that video code conversion device provided in an embodiment of the present invention, can treat transcoded video file and be split,
And the video subfile that segmentation obtains is distributed into different transcoders, so that more transcoders treat transcoded video file simultaneously
Carry out transcoding.The embodiment of the present invention can call more transcoders to carry out transcoding to a video file simultaneously, therefore can contract
The short transcoding time, and improve transcoding efficiency.
Corresponding to devices above embodiment, the embodiment of the invention also provides a kind of video code conversion systems, may include:
Video code conversion device and more transcoders；The video code conversion device and the more transcoders communicate to connect.Institute
Video code conversion device is stated, may include: data obtaining module, file division module and file distribution module；
The data obtaining module, for obtaining the object code of video file to be transcoded and the video file to be transcoded
Rate；
The file division module, the video file to be transcoded for obtaining to the data obtaining module are split,
Obtain at least two video subfiles；
The file distribution module, the video subfile for obtaining the file division module segmentation distribute to more
Transcoder, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that described
It is assigned the video Ziwen that the transcoder of video subfile obtains distribution according to the target bit rate of the video file to be transcoded
Part carries out transcoding, generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to one turn
Code device.
The communication connection mode of the video code conversion device and more transcoders, may include: wired connection mode, and/
Or radio connection.
It can be seen that video code conversion system provided in an embodiment of the present invention, can treat transcoded video file and be split,
And the video subfile that segmentation obtains is distributed into different transcoders, so that more transcoders treat transcoded video file simultaneously
Carry out transcoding.The embodiment of the present invention can call more transcoders to carry out transcoding to a video file simultaneously, therefore can contract
The short transcoding time, and improve transcoding efficiency.
For apparatus and system embodiment, since it is substantially similar to the method embodiment, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
For convenience of description, it describes apparatus above and when system is divided into various modules with function and describes respectively.Certainly, exist
Implement to realize the function of each module in the same or multiple software and or hardware when the present invention.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
Those of ordinary skill in the art will appreciate that all or part of the steps in realization above method embodiment is can
It is completed with instructing relevant hardware by program, the program can store in computer-readable storage medium,
The storage medium designated herein obtained, such as: ROM/RAM, magnetic disk, CD.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (15)
1. a kind of video transcoding method characterized by comprising
Obtain the target bit rate of video file to be transcoded and the video file to be transcoded；Wherein, the video file to be transcoded
In carry audio；
The audio of the video file to be transcoded is encoded；
The video file to be transcoded is split, at least two video subfiles are obtained；
The video subfile that segmentation obtains is distributed into more transcoders, and sends institute to the transcoder for being assigned video subfile
The target bit rate of video file to be transcoded is stated, so that the transcoder for being assigned video subfile is according to the video to be transcoded
The target bit rate of file carries out transcoding to the video subfile that distribution obtains, and generates the video subfile with target bit rate；Its
In, any one video subfile is only assigned to a transcoder；
Obtain the transcoding progress of each transcoder in the more transcoders；
It determines that transcoding progress has abnormal transcoder, and transcoding progress is existed to the video subfile in abnormal transcoder,
It is assigned in another transcoder and carries out transcoding；
Based on the transcoding progress of each transcoder obtained, the usage amount for generating the transcoder resource of each transcoder estimates letter
Breath, to estimate information based on the usage amount come the to be transcoded video text new to this when receiving new video file to be transcoded
The video subfile that part is divided is allocated.
2. the method according to claim 1, wherein further include:
Obtain to the more transcoder transcodings, the video subfile with target bit rate merges, and obtains complete mesh
Coding rate video file.
3. being obtained the method according to claim 1, wherein described be split the video file to be transcoded
To at least two video subfiles, comprising:
The video file to be transcoded is split according to duration, obtains at least two video Ziwens with identical duration
Part；
Or
The video file to be transcoded is split according to file size, obtains at least two views with same file size
Frequency subfile.
4. being obtained the method according to claim 1, wherein described be split the video file to be transcoded
To at least two video subfiles, comprising:
The video file to be transcoded for being more than threshold value to file size is split, and obtains at least two video subfiles.
5. the method according to claim 1, wherein another transcoder is not carry out transcoding at current time
Idle transcoder.
6. the method according to claim 1, wherein described obtain in the more transcoders each transcoder
Transcoding progress, comprising:
Periodically acquire the transcoding progress of each transcoder in the more transcoders；
Or
Receive the transcoding progress that each transcoder uploads in the more transcoders.
7. method described in -6 any one according to claim 1, which is characterized in that described to divide obtained each video subfile
Coding quality GOP is influenced comprising at least one strategy, the first frame in the GOP is key frame.
8. a kind of video code conversion device characterized by comprising
Data obtaining module, for obtaining the target bit rate of video file to be transcoded and the video file to be transcoded, and to institute
The audio for stating video file to be transcoded is encoded；Wherein, audio is carried in the video file to be transcoded；
File division module, the video file to be transcoded for obtaining to the data obtaining module are split, obtain at least
Two video subfiles；File distribution module, the video subfile for obtaining the file division module segmentation are distributed to
More transcoders, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that
The video that the transcoder for being assigned video subfile obtains distribution according to the target bit rate of the video file to be transcoded
Subfile carries out transcoding, generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to one
Platform transcoder；
Progress obtains module, for obtaining the transcoding progress of each transcoder in the more transcoders；
Task allocating module determines that there are different for transcoding progress for the transcoding progress according to acquired in progress acquisition module
Normal transcoder, and transcoding progress is assigned in another transcoder and is carried out in the presence of the video subfile in abnormal transcoder
Transcoding；And the transcoding progress of each transcoder based on acquisition, the usage amount for generating the transcoder resource of each transcoder are estimated
Information, to estimate information based on the usage amount come the to be transcoded video new to this when receiving new video file to be transcoded
The video subfile that file is divided is allocated.
9. device according to claim 8, which is characterized in that further include:
File combination module is carried out for video subfile obtain to the more transcoder transcodings, with target bit rate
Merge, obtains complete target bit rate video file.
10. device according to claim 8, which is characterized in that the file division module is specifically used for:
The video file to be transcoded that the data obtaining module obtains is split according to duration, obtaining at least two has phase
With the video subfile of duration；
Or
The video file to be transcoded that the data obtaining module obtains is split according to file size, obtains at least two tools
There is the video subfile of same file size.
11. device according to claim 8, which is characterized in that the file division module is specifically used for:
The video file to be transcoded that the file size that the data obtaining module obtains is more than threshold value is split, is obtained at least
Two video subfiles.
12. device according to claim 8, which is characterized in that another transcoder is not carry out transcoding at current time
Idle transcoder.
13. device according to claim 8, which is characterized in that the progress obtains module, is specifically used for:
Periodically acquire the transcoding progress of each transcoder in the more transcoders；
Or
Receive the transcoding progress that each transcoder uploads in the more transcoders.
14. according to device described in claim 8-13 any one, which is characterized in that the file division module segmentation obtains
Each video subfile include that at least one strategy influences coding quality GOP, the first frame in the GOP is key frame.
15. a kind of video code conversion system characterized by comprising
Video code conversion device and more transcoders；Wherein, the video code conversion device and the more transcoders communicate to connect,
The video code conversion device includes:
Data obtaining module, for obtaining the target bit rate of video file to be transcoded and the video file to be transcoded, and to institute
The audio for stating video file to be transcoded is encoded；Wherein, audio is carried in the video file to be transcoded；
File division module, the video file to be transcoded for obtaining to the data obtaining module are split, obtain at least
Two video subfiles；File distribution module, the video subfile for obtaining the file division module segmentation are distributed to
More transcoders, and the target bit rate of the video file to be transcoded is sent to the transcoder for being assigned video subfile, so that
The video that the transcoder for being assigned video subfile obtains distribution according to the target bit rate of the video file to be transcoded
Subfile carries out transcoding, generates the video subfile with target bit rate；Wherein, any one video subfile is only assigned to one
Platform transcoder；
Progress obtains module, for obtaining the transcoding progress of each transcoder in the more transcoders；
Task allocating module determines that there are different for transcoding progress for the transcoding progress according to acquired in progress acquisition module
Normal transcoder, and transcoding progress is assigned in another transcoder and is carried out in the presence of the video subfile in abnormal transcoder
Transcoding；And the transcoding progress of each transcoder based on acquisition, the usage amount for generating the transcoder resource of each transcoder are estimated
Information, to estimate information based on the usage amount come the to be transcoded video new to this when receiving new video file to be transcoded
The video subfile that file is divided is allocated.
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