CN103826138A - System and method for realizing cloud transcoding on various code rates and encoding formats of audio and video contents - Google Patents
System and method for realizing cloud transcoding on various code rates and encoding formats of audio and video contents Download PDFInfo
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Abstract
The invention relates to a system and a method for realizing cloud transcoding on various code rates and encoding formats of audio and video contents. The system comprises a cloud publishing subsystem for displaying an audio and video publishing interface, a cloud storage subsystem for storing transcoded files, and a cloud transcoding subsystem which comprises a transcoding factor library, a transcoding preprocessing module and transcoding modules, wherein the transcoding preprocessing module is used for analyzing formats of audio and video files selected during cloud publishing, decoding the audio and video files and calling corresponding transcoding function units from the transcoding factor library to form the corresponding transcoding modules. According to the system and the method for realizing the cloud transcoding on various code rates and the encoding formats of the audio and video contents, by the adoption of the structure, the transcoding modules can be assembled according to a transcoding requirement selected during the cloud publishing; each transcoding module has different functions; a large-scale transcoding demand is met, and various audio and video encoding formats and files with various code rates can be generated; the transcoding speed is greatly increased, the transcoding rate is improved, and a large application range is realized.
Description
Technical field
The present invention relates to file transcoding technology field, relate in particular to the transcoding field of various code rate and the coded format of the audio-video frequency content based on cloud computing, specifically refer to a kind of system and method for realizing audio-video frequency content various code rate and coded format cloud transcoding.
Background technology
The development of new media is by the new trend of development that is Future Media, and the Internet audio frequency and video industry is also in develop rapidly, and the demand of audio-video document is increasing; Meanwhile, different platform and terminal need again the audio-video document of different coding form and code check, and the work of audio frequency and video transcoding is the work that can not save.
In existing transcoding technology, also have the following disadvantages:
1, the inefficiency of single transcoder transcoding, can not meet the needs of current audio frequency and video Industry Quick Development;
2, current cloud trans-coding system, uses multiple transcoders, but cooperation efficiency between transcoder is low, can not solve preferably multiple terminals upload file and generate the problems such as the file of multi code Rate of Chinese character, odd encoder form simultaneously;
3, current cloud trans-coding system, lessly coordinates with cloud storage, can not make cloud transcoding bring into play more high efficiency.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of can realization to generate the file of multiple audio/video coding form, various code rate simultaneously, significantly improve transcoding speed, promote transcoding speed, there is the system and method for realizing audio-video frequency content various code rate and coded format cloud transcoding of broader applications scope.
To achieve these goals, the system and method for realizing audio-video frequency content various code rate and coded format cloud transcoding of the present invention has following formation:
This realizes the system of audio-video frequency content various code rate and coded format cloud transcoding, and its main feature is that described system comprises:
Cloud is issued subsystem, issues interface in order to present audio frequency and video in each terminal;
Cloud storage subsystem, in order to store the audio-video document after transcoding;
Cloud transcoding subsystem;
Described cloud transcoding subsystem comprises:
Transcoding is because of word bank, in order to store code check and the coded format transcoding functional unit between audio-video document;
Transcoding pretreatment module, form and the code check of the audio-video document that while issue in order to analyze cloud, user selects also decoded and forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank this audio-video document;
Transcoding module, in order to carry out transcoding to described selecteed audio-video document.
Preferably, described transcoding pretreatment module comprises:
Pretreatment unit, form and the code check of the audio-video document that while issue in order to analyze cloud, user selects also decoded to this audio-video document;
Task management unit, in order to form corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank.
More preferably, described pretreatment unit comprises:
Notice subelement, issues in order to receive described cloud the synchronization message that subsystem sends;
Receive subelement, issue in order to receive cloud the audio-video document that subsystem is uploaded;
Decoding subelement, in order to decode to described audio-video document.
More preferably, described task management unit comprises:
Scheduling sublayer unit, generates the transcoding module matching and this audio-video document is added to the sequence for the treatment of transcoding according to transcoding requirement and current file form;
Sequence subelement, in order to store the described sequence for the treatment of transcoding;
Distribute subelement, in order to treating that the audio-video document in the sequence of transcoding distributes to the transcoding module matching.
The invention still further relates to a kind of method that system based on described realizes audio-video frequency content various code rate and coded format cloud transcoding, its main feature is that described method comprises the following steps:
(1) described cloud issue subsystem presents audio frequency and video issue interface in each terminal;
(2) form and the code check of the audio-video document that when described transcoding pretreatment module is analyzed cloud issue, user selects also decoded to this audio-video document;
(3) described transcoding pretreatment module forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank;
(4) described transcoding module is decoded to described selecteed audio-video document;
(5) audio-video document after described cloud memory subsystem stores transcoding.
Preferably, described transcoding pretreatment module comprises pretreatment unit, described pretreatment unit comprises notice subelement, receives subelement reconciliation numeral unit, form and the code check of the audio-video document that when described transcoding pretreatment module is analyzed cloud issue, user selects also decoded to this audio-video document, comprises the following steps:
(21) described notice submodule receives the synchronization message of cloud issue subsystem;
(22) described reception subelement receives cloud and issues the audio-video document that subsystem is uploaded;
(23) described decoding subelement is decoded to described audio-video document.
More preferably, described transcoding pretreatment module comprises task management unit, described task management unit comprises scheduling sublayer unit, sequence subelement and distributes subelement, described transcoding pretreatment module forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank, comprises the following steps:
(31) described scheduling sublayer unit receives the synchronization message of the cloud issue subsystem of described notice subelement transmission;
(32) described scheduling sublayer unit judges whether according to transcoding requirement and current file form the transcoding module matching, and if so, continues step (33), otherwise continues step (34);
(33) described scheduling sublayer unit adds this audio-video document the sequence for the treatment of transcoding;
(34) described scheduling sublayer cell call transcoding is assembled and is generated the transcoding module matching because of the relevant transcoding functional unit of word bank;
(35) described distribution subelement will treat that the audio-video document in the sequence of transcoding distributes to the transcoding module matching.
Further, between described step (4) and (5), further comprising the steps of:
(41) described scheduling sublayer unit monitors and reclaims vacant transcoding module in real time to the performance of transcoding module.
Preferably, the audio-video document after described cloud memory subsystem stores transcoding, is specially:
Described cloud storage subsystem is carried out memory allocation according to the code check of described audio-video document and coded format.
Preferably, described step (5) is afterwards, further comprising the steps of:
(6) audio-video document transcoding success message is successfully notified and is issued in the storage of the cloud storage subsystem described in described cloud issue subsystem reception.
Adopt the system and method for realizing audio-video frequency content various code rate and coded format cloud transcoding in this invention, there is following beneficial effect:
1, this cloud trans-coding system comprises transcoding because of word bank, can issue the transcoding demand assembling transcoding module of selecting according to cloud, and each transcoding module realizes different functions, meets extensive transcoding demand;
2, transcoding is built configurablely because of the word bank initial stage, and can increase as required the transcoding factor, supports more complicated transcoding demand;
3, transcoding pretreatment module can be decoded to audio-video document, and create and treat transcoding queue, can be responsible for distributing according to the ability of transcoding module and treat transcoding file, and reclaim idle transcoding module, make transcoding module only be responsible for coding work, greatly promote transcoding efficiency;
4, multiple transcoding modules, independent operating separately, non-interference, only need realize single encoding function, and without design, be assembled by the transcoding factor; Support clustered deploy(ment), operation when multiple transcoding module can, under efficient transcoding, generate the file of various code rate, coded format simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a set of complete cloud trans-coding system.
Fig. 2 is the structural representation of the system that realizes audio-video frequency content various code rate and coded format cloud transcoding of the present invention.
Fig. 3 is the flow chart of the method that realizes audio-video frequency content various code rate and coded format cloud transcoding of the present invention.
Embodiment
In order more clearly to describe technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
As shown in Figure 1, a set of complete cloud trans-coding system comprises: cloud is issued subsystem, cloud transcoding subsystem, cloud storage subsystem, cloud distribution subsystem.The present invention mainly discloses the cloud transcoding subsystem of audio frequency and video, as shown in Figure 2, comprising: transcoding pretreatment module, transcoding are because of word bank and some transcoding modules.
Transcoding pretreatment module: video format and the code check of selected output while issue for analyzing cloud, and file is decoded, create and treat transcoding queue, and from transcoding because calling the corresponding transcoding factor word bank, be assembled into corresponding transcoding module; And after completing, transcoding notifies cloud delivery system;
Transcoding is because of word bank: also can be described as omnipotent transcoding storehouse, deposit the code check and the coded format transcoding functional unit that comprise between audio-video document, can be assembled into transcoding module by one or more transcoding factors; The transcoding factor is configurable, and can increase with the increase of transcoding task;
Transcoding module: the actual module of bearing transcoding task, after transcoding completes, file after transcoding is given to cloud storage subsystem, and accepts and treat transcoding file in transcoding queue.
The successful key of this cloud code-transferring method be following some:
1, whether transcoding is comprehensive because of word bank, contain the form of the audio-video document of all main flows and the demand of code check on market; In the time having new transcoding demand, add in time the transcoding factor, and issue each terminal at cloud and add corresponding transcoding selection.
2, cloud is issued subsystem and can be received transcoding file and transcoding demand, passes to transcoding pretreatment module.
3, transcoding pretreatment module can successfully be resolved transcoding demand, and can be correct take on transcoding module from transcoding because recalling corresponding transcoding factor set word bank.
4, transcoding pretreatment module can create transcoding queue, and according to the process of transcoding module, allocate file is to corresponding transcoding module.
5, transcoding module completes the transcoding of certain file, and the file after transcoding is successfully given to cloud storage system.
Transcoding module can be by the transcoding capability reporting of self to transcoding pretreatment module, and according to ability, transcoding pretreatment module is treated transcoding file from transcoding queue assignment, and recovery to transcoding module.
Be illustrated in figure 3 audio-video frequency content cloud transcoding subsystem circulation figure, complete the file output that uploads to various code rate, coded format of audio-video document, need to experience following steps:
The first step: cloud is issued subsystem and presented audio frequency and video issue interface in each terminal, and user selects the file of uploading and the form of wanting transcoding, gives notice subelement by message synchronization;
Second step: receive subelement and receive the audio-video document that cloud issue subsystem is uploaded;
The 3rd step: decoding subelement is responsible for the file of uploading to do decoding work;
The 4th step: the notice subelement of pretreatment unit is issued the synchronous information of subsystem for cloud and is given to scheduling sublayer unit;
The 5th step: scheduling sublayer unit requires and current file form according to transcoding, mates with transcoding module, if there is the transcoding module of cooperation, this file is added to the sequence subelement for the treatment of transcoding; If there is no the transcoding module of coupling, call the relevant transcoding factor of transcoding because of word bank, assemble by the transcoding factor, generate corresponding transcoding module;
The 6th step: distribute subelement according to the existing transcoding ability of transcoding module, the file of transcoding of the top sequence that sequence subelement is in charge of forwards transcoding module to, is responsible for coding by transcoding module;
The 7th step: scheduling sublayer unit does real-time monitoring to the performance of transcoding module, reclaims releasing resource to vacant transcoding module;
The 8th step: each transcoding module is uploaded to cloud storage to the file of having encoded, is carried out the file memory allocation of different code checks, coded format by cloud storage subsystem;
The 9th step: cloud storage subsystem notice cloud is issued subsystem, file distribution transcoding success message;
Adopt the system and method for realizing audio-video frequency content various code rate and coded format cloud transcoding in this invention, there is following beneficial effect:
1, this cloud trans-coding system comprises transcoding because of word bank, can issue the transcoding demand assembling transcoding module of selecting according to cloud, and each transcoding module realizes different functions, meets extensive transcoding demand;
2, transcoding is built configurablely because of the word bank initial stage, and can increase as required the transcoding factor, supports more complicated transcoding demand;
3, transcoding pretreatment module can be decoded to audio-video document, and create and treat transcoding queue, can be responsible for distributing according to the ability of transcoding module and treat transcoding file, and reclaim idle transcoding module, make transcoding module only be responsible for coding work, greatly promote transcoding efficiency;
4, multiple transcoding modules, independent operating separately, non-interference, only need realize single encoding function, and without design, be assembled by the transcoding factor; Support clustered deploy(ment), operation when multiple transcoding module can, under efficient transcoding, generate the file of various code rate, coded format simultaneously.
Claims (10)
1. a system that realizes audio-video frequency content various code rate and coded format cloud transcoding, is characterized in that, described system comprises:
Cloud is issued subsystem, issues interface in order to present audio frequency and video in each terminal;
Cloud storage subsystem, in order to store the audio-video document after transcoding;
Cloud transcoding subsystem;
Described cloud transcoding subsystem comprises:
Transcoding is because of word bank, in order to store code check and the coded format transcoding functional unit between audio-video document;
Transcoding pretreatment module, form and the code check of the audio-video document that while issue in order to analyze cloud, user selects also decoded and forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank this audio-video document;
Transcoding module, in order to carry out transcoding to described selecteed audio-video document.
2. the system that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 1, is characterized in that, described transcoding pretreatment module comprises:
Pretreatment unit, form and the code check of the audio-video document that while issue in order to analyze cloud, user selects also decoded to this audio-video document;
Task management unit, in order to form corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank.
3. the system that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 2, is characterized in that, described pretreatment unit comprises:
Notice subelement, issues in order to receive described cloud the synchronization message that subsystem sends;
Receive subelement, issue in order to receive cloud the audio-video document that subsystem is uploaded;
Decoding subelement, in order to decode to described audio-video document.
4. the system that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 2, is characterized in that, described task management unit comprises:
Scheduling sublayer unit, generates the transcoding module matching and this audio-video document is added to the sequence for the treatment of transcoding according to transcoding requirement and current file form;
Sequence subelement, in order to store the described sequence for the treatment of transcoding;
Distribute subelement, in order to treating that the audio-video document in the sequence of transcoding distributes to the transcoding module matching.
5. the system based on described in any one in claim 1 to 4 realizes a method for audio-video frequency content various code rate and coded format cloud transcoding, it is characterized in that, described method comprises the following steps:
(1) described cloud issue subsystem presents audio frequency and video issue interface in each terminal;
(2) form and the code check of the audio-video document that when described transcoding pretreatment module is analyzed cloud issue, user selects also decoded to this audio-video document;
(3) described transcoding pretreatment module forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank;
(4) described transcoding module is decoded to described selecteed audio-video document;
(5) audio-video document after described cloud memory subsystem stores transcoding.
6. the method that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 5, it is characterized in that, described transcoding pretreatment module comprises pretreatment unit, described pretreatment unit comprises notice subelement, receives subelement reconciliation numeral unit, form and the code check of the audio-video document that when described transcoding pretreatment module is analyzed cloud issue, user selects also decoded to this audio-video document, comprises the following steps:
(21) described notice submodule receives the synchronization message of cloud issue subsystem;
(22) described reception subelement receives cloud and issues the audio-video document that subsystem is uploaded;
(23) described decoding subelement is decoded to described audio-video document.
7. the method that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 6, it is characterized in that, described transcoding pretreatment module also comprises task management unit, described task management unit comprises scheduling sublayer unit, sequence subelement and distributes subelement, described transcoding pretreatment module forms corresponding transcoding module from described transcoding because calling corresponding transcoding functional unit word bank, comprises the following steps:
(31) described scheduling sublayer unit receives the synchronization message of the cloud issue subsystem of described notice subelement transmission;
(32) described scheduling sublayer unit judges whether according to transcoding requirement and current file form the transcoding module matching, and if so, continues step (33), otherwise continues step (34);
(33) described scheduling sublayer unit adds this audio-video document the sequence for the treatment of transcoding;
(34) described scheduling sublayer cell call transcoding is assembled and is generated the transcoding module matching because of the relevant transcoding functional unit of word bank;
(35) described distribution subelement will treat that the audio-video document in the sequence of transcoding distributes to the transcoding module matching.
8. the method that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 7, is characterized in that, between described step (4) and (5), further comprising the steps of:
(41) described scheduling sublayer unit monitors and reclaims vacant transcoding module in real time to the performance of transcoding module.
9. the method that realizes audio-video frequency content various code rate and coded format cloud transcoding according to claim 5, is characterized in that, the audio-video document after described cloud memory subsystem stores transcoding, is specially:
Described cloud storage subsystem is carried out memory allocation according to the code check of described audio-video document and coded format.
10. the method for existing audio-video frequency content various code rate according to claim 5 and coded format cloud transcoding, is characterized in that, described step (5) is afterwards, further comprising the steps of:
(6) audio-video document transcoding success message is successfully notified and is issued in the storage of the cloud storage subsystem described in described cloud issue subsystem reception.
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