CN103237037A - Media format conversion method and system based on cloud computing architecture - Google Patents
Media format conversion method and system based on cloud computing architecture Download PDFInfo
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Abstract
The embodiment of the invention provides a media format conversion method and a media format conversion system based on cloud computing architecture. The method mainly comprises the following steps that a transcoding platform based on the cloud computing architecture is constructed on the network side, and the transcoding platform is used for receiving a media file which is submitted by a browser of a client and needs format conversion and dividing the media file into a plurality of sub-media files; according to a set mission control strategy, a plurality of transcoding servers are selected from a transcoding server cluster in the transcoding platform, and each transcoding server is used for performing format conversion on one sub-media file, so as to obtain one transcoding sub-media file; and all of the transcoding sub-media files are combined to obtain a transcoding media file of the media file, and the transcoding media file is returned to the browser of the client. By using the method and the system provided by the embodiment of the invention, the conversion problem of various video formats is effectively solved, the transcoding time is reduced, and the problem that much time is consumed in format conversion of a large video file and multiple video files is solved.
Description
Technical field
The present invention relates to the media format conversion field, relate in particular to a kind of media format conversion method and system based on the cloud computing framework.
Background technology
Along with the continuous progress of development of science and technology and video technique, the code/decode format of video is constantly weeded out the old and bring forth the new, and video is more and more clear, and the encoding and decoding time is shorter and shorter, and the data volume of video is increasing.For the user who satisfies different hardware equipment experiences, individual PC(personal computer, personal computer), mobile terminal devices such as mobile phone, Pad have corresponding video format.Therefore, present video format is of a great variety, up to the present, has to surpass 500 kinds video source form.Use in given hardware device in order to satisfy video file, just need carry out the conversion of video format to this video, convert the video format that given hardware device needs to.Therefore, a kind of method that video file is carried out high efficiency format conversion of exploitation is a problem demanding prompt solution.
A kind of method that video file is carried out format conversion of the prior art is: video format conversion software is arranged among the individual PC, as the local application of individual PC.Utilize above-mentioned conversion software that video file is carried out format conversion at individual PC.
Above-mentioned shortcoming of video file being carried out the method for format conversion of the prior art is: present video format conversion software all is only to change at some video format mostly, can not support the conversion of all video formats, wherein some video format conversion software also has specific (special) requirements to operating system.When needs carry out the video file of format conversion when bigger, the video format conversion software among the above-mentioned individual PC needs long time just can finish the format conversion operation.Especially progressively the popularizing of HD video, in the epoch of the explosive growth of video, the time of format conversion has arrived intolerable stage.
Summary of the invention
Embodiments of the invention provide a kind of media format conversion method and system based on the cloud computing framework, to realize that media file is carried out format conversion effectively.
A kind of media format conversion method based on the cloud computing framework, at the transcoding platform of network side structure based on the cloud computing framework, described method specifically comprises:
The needs that described transcoding platform reception client browser is submitted to carry out the media file of format conversion, and described media file is divided into a plurality of sub-media files;
According to the task regulation and control strategy of setting, select a plurality of transcoding servers in the transcoding server cluster from described transcoding platform, each transcoding server carries out format conversion to a described sub-media file respectively, obtains a sub-media file of transcoding;
The sub-media file of each transcoding is merged, obtain the transcoding media file of described media file, described transcoding media file is returned to described client browser.
A kind of media format conversion system based on the cloud computing framework, be included in cloud computing framework and transcoding platform that network side makes up, described transcoding platform makes up based on described cloud computing framework, and described transcoding platform specifically comprises: web application server, cluster management server, transcoding server cluster and file division/merging server cluster;
Described web application server, the needs that are used for the submission of reception client browser carry out the media file of format conversion, and described media file is sent to cluster management server;
Described cluster management server is used for from described file division/mergings server cluster selection described media file being carried out dividing processing, the sub-media file of each transcoding after the format conversion being merged the file division/merging server of processing; According to the task regulation and control strategy of setting, from described transcoding server cluster, select each the sub-media file after the dividing processing is carried out a plurality of transcoding servers of format conversion processing; The transcoding media file that will obtain after will merging the sub-media file of each transcoding returns to described client browser;
Described file division/merging server cluster, comprise a plurality of parallel file division/merging server, file division/mergings server of selecting by described cluster management server carries out dividing processing to described media file and obtains a plurality of sub-media files, the sub-media file of each transcoding after the format conversion is merged processing obtains the transcoding media file, and described a plurality of sub-media files, transcoding media file are sent to described cluster management server;
Described transcoding server cluster, comprise a plurality of parallel transcoding servers, respectively a described sub-media file is carried out format conversion by each transcoding server in a plurality of transcoding servers of described cluster management server selection, obtain a sub-media file of transcoding, the sub-media file of all transcodings is sent to described cluster management server.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, the embodiment of the invention is by making up the transcoding platform based on the cloud computing framework, by use abundant based on the cloud infrastructure services can dynamic management plugin library, solved the transfer problem between the various video formats effectively; By using the B/S browser model, solved the problem that various application programs need be sought and install to video format conversion, the user can not need to install the conversion that various softwares can be realized video file format; Simultaneously, carry out the parallel processing mode of format conversion by a plurality of video files being distributed a plurality of transcoding servers, greatly reduced the transcoding time, solved the problem that big video file, a plurality of video file format are changed length consuming time.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The overall structure schematic diagram of a kind of distributed cloud computing framework that Fig. 1 provides for the embodiment of the invention;
The concrete process chart of a kind of media format conversion method based on cloud computing that Fig. 2 provides for the embodiment of the invention;
A kind of media format conversion system based on the cloud computing framework that Fig. 3 provides for the embodiment of the invention two, the concrete structure schematic diagram;
The concrete structure schematic diagram of a kind of transcoding platform that Fig. 4 provides for the embodiment of the invention two.
Embodiment
For ease of the understanding to the embodiment of the invention, be that example is further explained explanation below in conjunction with accompanying drawing with several specific embodiments, and each embodiment does not constitute the restriction to the embodiment of the invention.
Embodiment one
The overall structure schematic diagram of a kind of distributed cloud computing framework that this embodiment provides comprises three parts as shown in Figure 1: cloud infrastructure services (IaaS), cloud platform service (PaaS), cloud software service (SaaS).
IaaS refers to that cloud computing framework supplier can provide the basic resource of the cloud computings such as measurable calculating, storage, network and single-set operation system with granularity to the user, the user can dispose on IaaS or move various softwares, comprises client operating system and applied business.The user does not need to manage or control the infrastructure of any cloud computing, comprises network, server, operating system, storage etc.In IaaS, computational resource, storage resources, the Internet resources of all different manufacturers different model equipment are carried out unified resource virtualizing, it is the basis of PaaS.
PaaS refer to cloud computing framework supplier with the development environment of business software, running environment as a kind of service, submit to the user by the Internet.PaaS need be structured on the IaaS, is the bridge that connects IaaS and SaaS.The user can create own service application under the development environment that PaaS provides, and can directly run the business of oneself in the running environment of cloud computing system.PaaS is the management platform of a distributed environment, it can control " application code " distribution and issue in IaaS, the running environment architecture of " application code " is provided, and the distributing network request is to correct " application program " and quotas administered.It is the language support that is implemented on the running environment architecture.
SaaS refers to that cloud computing framework operator by the Internet, provides a kind of software application pattern of service application service to the user.Traditional software directly is structured on the hardware device, can not realize that many tenants of backstage resource share, and also can't realize the dynamic circulation of resource.SaaS requires these software operations to operate in cloud platform service layer or is structured on the cloud infrastructure layer.The advantage of SaaS is embodied on the dynamic retractility and circulation of backstage resource, and the resource extensibility is stronger, and this significant advantage is that traditional software is not available.
Based on above-mentioned cloud computing framework, the concrete handling process of a kind of media format conversion method based on cloud computing that this embodiment provides comprises following treatment step as shown in Figure 2:
Step 21, make up the transcoding platform based on the cloud computing framework, described transcoding platform comprises web application server, cluster management server, transcoding server cluster, file division/merging server cluster and plug-in management server.
The embodiment of the invention makes up the transcoding platform based on described cloud computing framework, and described transcoding platform comprises web application server, cluster management server, transcoding server cluster, file division/merging server cluster and plug-in management server.Above-mentioned cluster management server is connected with web application server, transcoding server cluster, file division/merging server cluster, and above-mentioned transcoding server cluster, file division/merging server cluster are connected with the plug-in management server.
Above-mentioned web application server, cluster management server, transcoding server cluster, file division/merging server cluster and plug-in management server can be regarded a kind of SaaS that makes up based on IaaS, PaaS in the described cloud computing framework as.
Described web application server be used for to receive the needs that client browser submits to and carries out the media file of format conversion and the conversion parameter of media file correspondence, returns media file after the conversion to client browser.
Described cluster management server is used for store media files, selects the server to described media file merges, cuts apart, transcoding is handled.
Described file division/merging server cluster is used for processing is cut apart and merged to media file.
Described transcoding server cluster is used for media file is carried out format conversion processing.
Described plug-in management server is used for management and carries out that media file is cut apart/merged, media file format is changed needed various plug-in unit, and plug-in unit be inquired about, increases, deletes, be upgraded to the plug-in management server can dynamically based on each basic resource among the IaaS in the above-mentioned cloud computing framework.
All servers use the cluster outer net to carry out communicating by letter between server in same local area network (LAN).Cluster server all disposes two network interface cards, and one of them network is used for the cluster outer net, and another network interface card is used for the cluster Intranet, is used for intra cluster communication.
Step 22, Web Application Server receive the media file that client browser is submitted to, and cluster management server is selected idle file division/merging server according to the size of data of media file, and above-mentioned media file is carried out dividing processing.
Web Application Server in the above-mentioned transcoding platform, be responsible for uploading and the setting of download and user's conversion parameter of user video file, it is the interface of user's input and output, adopts the B/S(browser/server) pattern, the user need not to install any software, as long as use browser.
Described Web Application Server receives the needs that client browser submits to and carries out the media file of format conversion and the conversion parameter of this media file correspondence, comprises object format information (avi for example, mp4, the wmv etc. of media file in this conversion parameter.), described Web Application Servers such as the resolution of video, audio/video coder, frame per second are transferred to cluster management server with the media file that receives and the conversion parameter of this media file correspondence, this cluster management server is carried out association store with the conversion parameter of media file and this media file correspondence.
File division/merging the server that in above-mentioned file division/merging server cluster, comprises a plurality of parallel distributed, above-mentioned a plurality of file division/merging server is divided into different ranks according to the ability size of cutting apart/merge media file, the size of data scope of the media file that other file division of each grade/merging server is corresponding certain.
Above-mentioned cluster management server is carried out the size of data of the media file of format conversion according to above-mentioned needs, select file division/merging server of the free time of corresponding level, the file division task of above-mentioned media file is distributed to the file division/merging server of above-mentioned selection.
The file division of above-mentioned selection/merging server obtains from the plug-in management server and carries out media file and cut apart needed various plug-in unit, utilize these various plug-in units that above-mentioned media file is carried out dividing processing, each the sub-media file after the dividing processing is sent to above-mentioned cluster management server.
Step 23, cluster management server are selected idle a plurality of transcoding servers according to the current load value of transcoding server, and above-mentioned media file is carried out dividing processing.
The transcoding server based on the cloud computing framework that comprises a plurality of parallel distributed in the above-mentioned transcoding server cluster, described cluster management server is calculated the current load value of each the idle transcoding server in the above-mentioned transcoding server cluster, and concrete computing formula can be as follows:
The load value of transcoding server=k1*cpu use amount+k2* processor performance+k3* internal memory surplus+k4* bandwidth resources.
Described k1 is the corresponding weights of cup use amount, and described k2 is the corresponding weights of processor performance, and described k3 is the corresponding weights of internal memory surplus, and described k4 is the corresponding weights of bandwidth resources.
If the quantity of the sub-media file after the above-mentioned dividing processing is M, described cluster management server is selected M transcoding server of current load value minimum, distributes the format conversion task of a sub-media file for each transcoding server.
An above-mentioned M transcoding server obtains from the plug-in management server and carries out media file format and change needed various plug-in unit, utilize these various plug-in units based on above-mentioned conversion parameter each sub-media file to be carried out format conversion processing, the sub-media file of each transcoding after the format conversion processing is sent to above-mentioned cluster management server.
The size of data of step 24, the cluster management server sub-media file of each transcoding after according to format conversion processing is selected idle file division/merging server, and above-mentioned media file is merged processing.
The size of data of each the transcoding media file of above-mentioned cluster management server after according to above-mentioned format conversion processing, select file division/merging server of the free time of corresponding level, the file merging task of the sub-media file of above-mentioned each transcoding is distributed to the file division/merging server of above-mentioned selection.
The file division of above-mentioned selection/merging server obtains from the plug-in management server and carries out media file and merge needed various plug-in unit, utilize these various plug-in units that the sub-media file of above-mentioned each transcoding is merged processing, the transcoding media file that merges after handling is sent to above-mentioned cluster management server.
Transcoding media file after step 25, above-mentioned cluster management server are handled above-mentioned merging sends to above-mentioned client browser.
Embodiment two
This embodiment provides a kind of media format conversion system based on the cloud computing framework, and its concrete structure is included in cloud computing framework and the transcoding platform that network side makes up as shown in Figure 3, and described transcoding platform makes up based on described cloud computing framework.
Described cloud computing framework comprises: the cloud infrastructure services, the cloud platform service, the cloud software service, described cloud infrastructure services is for the calculating that comprises that provides to the user, storage, network and single-set operation system are at the various basic resources of interior cloud computing, described cloud platform service is implemented on the described cloud infrastructure services, be used for providing to the user development environment of business software, running environment, so that the user creates and moves the service application of oneself in described cloud computing framework, described cloud software service is implemented on the described cloud platform service, and being used for provides service application service by the Internet to the user.
Concrete, the concrete structure of a kind of transcoding platform that this embodiment provides as shown in Figure 4, specifically comprise: web application server 41, cluster management server 42, transcoding server cluster 43, file division/merging server cluster 44 and plug-in management server 45, above-mentioned cluster management server is connected with web application server, transcoding server cluster, file division/merging server cluster, and above-mentioned transcoding server cluster, file division/merging server cluster are connected with the plug-in management server.
Described web application server 41, the needs that are used for the submission of reception client browser carry out the media file of format conversion, and described media file is sent to cluster management server;
Described cluster management server 42 is used for from described file division/mergings server cluster selection described media file being carried out dividing processing, the sub-media file of each transcoding after the format conversion being merged the file division/merging server of processing; According to the task regulation and control strategy of setting, from described transcoding server cluster, select each the sub-media file after the dividing processing is carried out a plurality of transcoding servers of format conversion processing; The transcoding media file that will obtain after will merging the sub-media file of each transcoding returns to described client browser;
Described file division/merging server cluster 43, comprise a plurality of parallel file division/merging server, file division/mergings server of selecting by described cluster management server carries out dividing processing to described media file and obtains a plurality of sub-media files, the sub-media file of each transcoding after the format conversion is merged processing obtains the transcoding media file, and described a plurality of sub-media files, transcoding media file are sent to described cluster management server;
Described transcoding server cluster 44, comprise a plurality of parallel transcoding servers, respectively a described sub-media file is carried out format conversion by each transcoding server in a plurality of transcoding servers of described cluster management server selection, obtain a sub-media file of transcoding, the sub-media file of all transcodings is sent to described cluster management server.
Described plug-in management server 45, be used for management and carry out that media file is cut apart/merged, media file format is changed needed various plug-in unit, dynamically inquire about, increase, delete, upgrade plug-in unit based on each basic resource in the cloud infrastructure services in the described cloud computing framework.
Concrete, described cluster management server 42, also be used for a plurality of file division/merging server of described file division/merging server cluster is divided into different ranks according to the ability size of cutting apart/merge media file, carry out the size of data of the media file of format conversion according to described needs, select file division/merging server of the free time of corresponding level, the file division task of described media file is distributed to the file division/merging server of described selection;
The file division of described selection/merging server, also be used for obtaining from the plug-in management server and carry out media file and cut apart needed various plug-in unit, utilize these various plug-in units that described media file is carried out dividing processing, each the sub-media file that obtains after the dividing processing is sent to above-mentioned cluster management server.
Concrete, described cluster management server 42, also for the current load value of each the idle transcoding server that calculates described transcoding server cluster, concrete computing formula can be as follows:
The load value of transcoding server=k1*cpu use amount+k2* processor performance+k3* internal memory surplus+k4* bandwidth resources;
Described k1 is the corresponding weights of cpu use amount, and described k2 is the corresponding weights of processor performance, and described k3 is the corresponding weights of internal memory surplus, and described k4 is the corresponding weights of bandwidth resources;
If the quantity of the sub-media file after the described dividing processing is M, select M transcoding server of current load value minimum, distribute the format conversion task of a sub-media file for each transcoding server;
A described M transcoding server, also be used for obtaining from the plug-in management server and carry out media file format and change needed various plug-in unit, utilize these various plug-in units based on described conversion parameter each sub-media file to be carried out format conversion processing, the sub-media file of each transcoding after the format conversion processing is sent to described cluster management server.
Concrete, described cluster management server 42, also be used for the size of data according to the sub-media file of each transcoding after the described format conversion processing, select file division/merging server of the free time of corresponding level, the file merging task of the sub-media file of described each transcoding is distributed to the file division/merging server of described selection, and the transcoding media file after described merging is handled sends to described client browser.
The file division of described selection/merging server, be used for obtaining from the plug-in management server and carry out media file and merge needed various plug-in unit, utilize these various plug-in units that the sub-media file of described each transcoding is merged processing, the transcoding media file that merges after handling is sent to described cluster management server.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, and the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the equipment among the embodiment can be described according to embodiment and be distributed in the equipment of embodiment, also can carry out respective change and be arranged in the one or more equipment that are different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
Carry out based on detailed process and the preceding method embodiment of the media format conversion of cloud computing framework similarly with the system of the embodiment of the invention, repeat no more herein.
In sum, the embodiment of the invention is by making up the transcoding platform based on the cloud computing framework, by use abundant based on the cloud infrastructure services can dynamic management plugin library, solved the transfer problem between the various video formats effectively; By using the B/S browser model, solved the problem that various application programs need be sought and install to video format conversion, the user can not need to install the conversion that various softwares can be realized video file format; Simultaneously, remerge by carry out elder generation's decomposition back transcoding for long big file consuming time, distribute a plurality of transcoding servers to carry out the parallel processing mode of format conversion to a plurality of video files, greatly reduce the transcoding time, solved the problem that big video file, a plurality of video file format are changed length consuming time.
The embodiment of the invention solves video format conversion and need drop into fixing hardware, software cost problem by using the framework of cloud computing.Support the transcoding of all video formats at present, and support to convert to any one form of appointment, powerful encoding and decoding storehouse, backstage provides powerful support, and reasonable extendible architecture design provides powerful guarantee for the transcoding of emerging video format.The user only need use browser can realize format conversion, need not to go to seek and install various switching softwares again.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. the media format conversion method based on the cloud computing framework is characterized in that, at the transcoding platform of network side structure based on the cloud computing framework, described method specifically comprises:
The needs that described transcoding platform reception client browser is submitted to carry out the media file of format conversion, and described media file is divided into a plurality of sub-media files;
According to the task regulation and control strategy of setting, select a plurality of transcoding servers in the transcoding server cluster from described transcoding platform, each transcoding server carries out format conversion to a described sub-media file respectively, obtains a sub-media file of transcoding;
The sub-media file of each transcoding is merged, obtain the transcoding media file of described media file, described transcoding media file is returned to described client browser.
2. the media format conversion method based on cloud computing according to claim 1 is characterized in that, and is described at the transcoding platform of network side setting based on the cloud computing framework, comprising:
Make up the cloud computing framework at network side, described cloud computing framework comprises: the cloud infrastructure services, the cloud platform service, the cloud software service, described cloud infrastructure services is for the calculating that comprises that provides to the user, storage, network and single-set operation system are at the various basic resources of interior cloud computing, described cloud platform service is implemented on the described cloud infrastructure services, be used for providing to the user development environment of business software, running environment, so that the user creates and moves the service application of oneself in described cloud computing framework, described cloud software service is implemented on the described cloud platform service, and being used for provides service application service by the Internet to the user;
Make up the transcoding platform based on described cloud computing framework, described transcoding platform comprises the web application server, cluster management server, the transcoding server cluster, file division/merging server cluster and plug-in management server, the needs that described web application server is used for the submission of reception client browser carry out the media file of format conversion and the conversion parameter of media file correspondence, return transcoding media file after the format conversion to client browser, described cluster management server is used for selecting described media file is merged, cut apart, the server that transcoding is handled, described plug-in management server carries out media file for management to be cut apart/merges, media file format is changed needed various plug-in unit, dynamically inquires about based on each basic resource in the cloud infrastructure services in the described cloud computing framework, increase, deletion, upgrade plug-in unit.
3. the media format conversion method based on cloud computing according to claim 2, it is characterized in that, the needs that described transcoding platform reception client browser is submitted to carry out the media file of format conversion, and described media file is divided into a plurality of sub-media files, comprising:
The needs that described Web Application Server receives the client browser submission carry out the media file of format conversion and the conversion parameter of this media file correspondence, and described media file and conversion parameter are transferred to cluster management server;
Described cluster management server is divided into different ranks with a plurality of file division in described file division/merging server cluster/merging server according to the ability size of cutting apart/merge media file, size of data according to described media file, select file division/merging server of the free time of corresponding level, the file division task of described media file is distributed to the file division/merging server of described selection;
The file division of described selection/merging server obtains from the plug-in management server and carries out media file and cut apart needed various plug-in unit, utilize these various plug-in units that described media file is carried out dividing processing, each the sub-media file that obtains after the dividing processing is sent to described cluster management server.
4. the media format conversion method based on cloud computing according to claim 3, it is characterized in that, described according to the task regulation and control strategy of setting, select a plurality of transcoding servers in the transcoding server cluster from described transcoding platform, each transcoding server carries out format conversion to a described sub-media file respectively, obtain a sub-media file of transcoding, comprising:
Described cluster management server is calculated the current load value of each the idle transcoding server in the described transcoding server cluster, and concrete computing formula can be as follows:
The load value of transcoding server=k1*cpu use amount+k2* processor performance+k3* internal memory surplus+k4* bandwidth resources;
Described k1 is the corresponding weights of cpu use amount, and described k2 is the corresponding weights of processor performance, and described k3 is the corresponding weights of internal memory surplus, and described k4 is the corresponding weights of bandwidth resources;
If the quantity of the sub-media file after the described dividing processing is M, described cluster management server is selected M transcoding server of current load value minimum, distributes the format conversion task of a sub-media file for each transcoding server;
A described M transcoding server obtains from the plug-in management server and carries out media file format and change needed various plug-in unit, utilize these various plug-in units based on described conversion parameter each sub-media file to be carried out format conversion processing and obtain the sub-media file of transcoding, the sub-media file of each transcoding is sent to described cluster management server.
5. the media format conversion method based on cloud computing according to claim 4, it is characterized in that, described the sub-media file of each transcoding is merged, obtain the transcoding media file of described media file, described transcoding media file is returned to described client browser, comprising:
The size of data of each the transcoding media file of described cluster management server after according to described format conversion processing, select file division/merging server of the free time of corresponding level, the file merging task of the sub-media file of described each transcoding is distributed to the file division/merging server of described selection.
The file division of described selection/merging server obtains from the plug-in management server and carries out media file and merge needed various plug-in unit, utilize these various plug-in units that the sub-media file of described each transcoding is merged processing, the transcoding media file that merges after handling is sent to described cluster management server;
Transcoding media file after described cluster management server is handled described merging sends to described client browser.
6. media format conversion system based on the cloud computing framework, it is characterized in that, be included in cloud computing framework and transcoding platform that network side makes up, described transcoding platform makes up based on described cloud computing framework, and described transcoding platform specifically comprises: web application server, cluster management server, transcoding server cluster and file division/merging server cluster;
Described web application server, the needs that are used for the submission of reception client browser carry out the media file of format conversion, and described media file is sent to cluster management server;
Described cluster management server is used for from described file division/mergings server cluster selection described media file being carried out dividing processing, the sub-media file of each transcoding after the format conversion being merged the file division/merging server of processing; According to the task regulation and control strategy of setting, from described transcoding server cluster, select each the sub-media file after the dividing processing is carried out a plurality of transcoding servers of format conversion processing; The transcoding media file that will obtain after will merging the sub-media file of each transcoding returns to described client browser;
Described file division/merging server cluster, comprise a plurality of parallel file division/merging server, file division/mergings server of selecting by described cluster management server carries out dividing processing to described media file and obtains a plurality of sub-media files, the sub-media file of each transcoding after the format conversion is merged processing obtains the transcoding media file, and described a plurality of sub-media files, transcoding media file are sent to described cluster management server;
Described transcoding server cluster, comprise a plurality of parallel transcoding servers, respectively a described sub-media file is carried out format conversion by each transcoding server in a plurality of transcoding servers of described cluster management server selection, obtain a sub-media file of transcoding, the sub-media file of all transcodings is sent to described cluster management server.
7. the media format conversion system based on cloud computing according to claim 6 is characterized in that:
Described cloud computing framework comprises: the cloud infrastructure services, the cloud platform service, the cloud software service, described cloud infrastructure services is for the calculating that comprises that provides to the user, storage, network and single-set operation system are at the various basic resources of interior cloud computing, described cloud platform service is implemented on the described cloud infrastructure services, be used for providing to the user development environment of business software, running environment, so that the user creates and moves the service application of oneself in described cloud computing framework, described cloud software service is implemented on the described cloud platform service, and being used for provides service application service by the Internet to the user;
Described transcoding platform also comprises the plug-in management server, be used for management and carry out that media file is cut apart/merged, media file format is changed needed various plug-in unit, dynamically inquire about, increase, delete, upgrade plug-in unit based on each basic resource in the cloud infrastructure services in the described cloud computing framework.
8. the media format conversion system based on cloud computing according to claim 7 is characterized in that:
Described cluster management server, also be used for a plurality of file division/merging server of described file division/merging server cluster is divided into different ranks according to the ability size of cutting apart/merge media file, carry out the size of data of the media file of format conversion according to described needs, select file division/merging server of the free time of corresponding level, the file division task of described media file is distributed to the file division/merging server of described selection;
The file division of described selection/merging server, also be used for obtaining from the plug-in management server and carry out media file and cut apart needed various plug-in unit, utilize these various plug-in units that described media file is carried out dividing processing, each the sub-media file that obtains after the dividing processing is sent to above-mentioned cluster management server.
9. according to each described media format conversion system based on cloud computing of claim 6 to 8, it is characterized in that:
Described cluster management server, also for the current load value of each the idle transcoding server that calculates described transcoding server cluster, concrete computing formula can be as follows:
The load value of transcoding server=k1*cpu use amount+k2* processor performance+k3* internal memory surplus+k4* bandwidth resources;
Described k1 is the corresponding weights of cup use amount, and described k2 is the corresponding weights of processor performance, and described k3 is the corresponding weights of internal memory surplus, and described k4 is the corresponding weights of bandwidth resources;
If the quantity of the sub-media file after the described dividing processing is M, select M transcoding server of current load value minimum, distribute the format conversion task of a sub-media file for each transcoding server;
A described M transcoding server, also be used for obtaining from the plug-in management server and carry out media file format and change needed various plug-in unit, utilize these various plug-in units based on described conversion parameter each sub-media file to be carried out format conversion processing, the sub-media file of each transcoding after the format conversion processing is sent to described cluster management server.
10. the media format conversion system based on cloud computing according to claim 9 is characterized in that:
Described cluster management server, also be used for the size of data according to the sub-media file of each transcoding after the described format conversion processing, select file division/merging server of the free time of corresponding level, the file merging task of the sub-media file of described each transcoding is distributed to the file division/merging server of described selection, and the transcoding media file after described merging is handled sends to described client browser.
The file division of described selection/merging server, be used for obtaining from the plug-in management server and carry out media file and merge needed various plug-in unit, utilize these various plug-in units that the sub-media file of described each transcoding is merged processing, the transcoding media file that merges after handling is sent to described cluster management server.
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