CN101635635B - Cloud mode streaming media service platform - Google Patents
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Abstract
The invention provides a cloud mode streaming media service platform which comprises a navigation module, a data module, a control module and a content distribution network module. The navigation module is used for judging various types of terminals, accessing the terminals to the cloud mode streaming media service platform according to the types of the terminals and transmitting requested data stream to the terminals; the data module is used for storing video data; the control module is used for transmitting the video data to the terminals through content distribution networks according to requests of the terminals; and the content distribution network module is used for accessing the terminals to a closest server with requested contents in the data module through the navigation module. Through the realization of system architecture and service flow, the invention provides the cloud mode streaming media system platform which can meet demands of various terminal users for streaming media.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of cloud mode streaming media service platform.
Background technology
Streaming Media is meant the medium that the mode of employing stream transmission is play on the internet, comprises online net cast and demand (telecommunication) service.Along with demands of applications such as video conference, video request program, remote teaching, game on line and amusement more and more widely, high-performance and the stream media system technology that can satisfy the large-scale consumer demand also become the focus that academia and industrial circle are paid close attention to.Stream media system experiences the development from IP multicast, application layer multicast to P2P (Peer-to-Peer) technology on transmission technology, though solved the problem of extensibility to a certain extent, but also can't provide the service of service quality guarantee as a platform, to satisfy the increasing demand that inserts the multi-terminal user of the Internet.
Along with Internet development, this emerging IT service of cloud computing and the pattern of resource use and payment have been born.Cloud computing is that a kind of network that passes through connects the computation schema that obtains software and services, these are called " cloud " by the software and services that network connects, cloud computing makes the user can obtain to use the experience of supercomputer, the user uses notebook computer, blackberry, blueberry or iPhone, can insert by client and obtain the resource that needs in the cloud.Appearing as structure and can managing of cloud computing pattern can expand and have the streaming media service platform of quality assurance to create new opportunity.But how the cloud computing pattern is applied in the conventional flow media services, realizes still not having disclosed business model and technology and realizing as the structure framework of the stream media system of service platform with to the support of multi-terminal user.
The inventor finds that stream media system is only supported certain customers (as individual PC) in the prior art, can't satisfy the demand of multi-terminal user.
Summary of the invention
The present invention aims to provide a kind of cloud mode streaming media service platform, can solve in the prior art stream media system and only support certain customers, can't satisfy the problem of the demand of multi-terminal user,, " cloud Streaming Media " service platform of service quality guarantee be arranged to make up a kind of multiple terminals of supporting.
In an embodiment of the present invention, provide a kind of cloud mode streaming media service platform, having comprised: navigation module, data module, control module and content distributing network module, wherein
Navigation module is used for dissimilar terminals is judged, according to the type of terminal terminal is linked into cloud mode streaming media service platform, and the data flow of asking to terminal transmission by the mode of cloud service;
Data module is used for stored video data;
Control module is used for the request according to terminal, by content distributing network module video Data Transmission is arrived terminal;
Content distributing network module is used for by navigation module terminal being linked into the nearest server that data module has institute's request content.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module comprises: the multiple terminals access server is used for the type of terminal is judged, and according to the type of terminal terminal is linked into cloud mode streaming media service platform; Edge Server is used to realize that terminal obtains the live or downloading service of the program request of being asked as required by content distributing network module.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module also comprises: upload and push server, be used for the data of Edge Server are pushed to terminal, and allow terminal to upload the cloud terminal that data form expansion to Edge Server.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module also comprises: the real-time transcoding server, be used for terminal is carried out transcoding as required by uploading the data of uploading with push server, and in conjunction with upload with the data flow transmission of push server after with transcoding to a plurality of terminals.
Preferably, in above-mentioned cloud mode streaming media service platform, data module comprises: database server is used to receive dynamic data that the central control server cluster will preserve and returns each data in server information that is temporarily stored in to the central control server cluster.
Preferably, in above-mentioned cloud mode streaming media service platform, control module comprises: the central control server cluster, be used for storing the Resources list of the server that data module stores, and, user's request of terminal is directed to the server of the not load surplus that has request content according to the request content of terminal and the load state of server.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is the pc user, terminal is inserted cloud mode streaming media service platform by the WEB server.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is set-top box TV user, terminal is inserted cloud mode streaming media service platform by EPG (Electronic Program Guide, electric program menu) server.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is mobile phone users, terminal is inserted cloud mode streaming media service platform by WAP (Wireless Application Protocol, WAP (wireless application protocol)) server.
Preferably, in above-mentioned cloud mode streaming media service platform, the access way of above-mentioned terminal is direct access mode and/or P2P mode.
In the above-described embodiments, by navigation module dissimilar terminals is judged, and terminal is linked in the cloud mode streaming media service platform server that the type with terminal is complementary according to the type of terminal, make various video terminal equipments such as PC terminal, IPTV set-top box, mobile phone, palmtop PC carry out cloud service web visit by the cloud mode streaming media service platform of present embodiment, overcome in the prior art stream media system and only supported certain customers, can't satisfy the problem of the demand of multi-terminal user.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows cloud mode streaming media service platform schematic diagram according to an embodiment of the invention;
Fig. 2 shows cloud mode streaming media service platform service procedure figure according to an embodiment of the invention;
Fig. 3 shows the expansion cloud mode streaming media service platform schematic diagram that merges the multiple terminals ability according to an embodiment of the invention;
Fig. 4 shows multiple terminals secondary guiding schematic diagram according to an embodiment of the invention;
Fig. 5 shows cloud mode streaming media service platform configuration diagram (terminal picture wherein is the effect screen sectional drawing) in accordance with a preferred embodiment of the present invention;
Fig. 6 shows cloud mode streaming media service platform logical level schematic diagram (terminal picture wherein is the effect screen sectional drawing) according to an embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 shows cloud mode streaming media service platform schematic diagram according to an embodiment of the invention, comprising: navigation module 40, data module 10, control module 20 and content distributing network module 30, wherein
Content distributing network module 30 is used for by navigation module terminal being linked into the nearest server that data module has institute's request content.
In the present embodiment, by navigation module dissimilar terminals is judged, and terminal is linked in the cloud mode streaming media service platform server that the type with terminal is complementary according to the type of terminal, make various video terminal equipments such as PC terminal, IPTV set-top box, mobile phone, palmtop PC carry out cloud service web visit by the cloud mode streaming media service platform of present embodiment, made up the mode streaming media service platform platform, overcome in the prior art stream media system and only supported certain customers, can't satisfy the problem of the demand of multi-terminal user.
In the above-described embodiments, cloud mode streaming media service platform can be supported multiple transport protocols such as rtsp, http, file, mms, the video format of being supported is also more extensive, makes cloud mode streaming media service platform carry out video distribution to various mobile phones, set-top box, PC terminal simultaneously.Cloud mode streaming media service platform can be realized the complete stream media business, comprises real-time program request, and is live and download, and can satisfy the various video requirements of different user.Play the programme content of the video encoding form of present nearly all main flow, comprising: 1) MPEG1, MPEG2, MPEG4,3GP, MP3; 2) H.264, TS; 3) ASF, WMV; 4) RM, RA, RMVB; 5) WAV; 6) FLV (Flash form).Cloud mode streaming media service platform can be supported widely to stream media format, comprise real-time coding, real-time decoding, video request program, net cast, program storage, program distribution, film source conversion of various coded formats etc., and this form is applied on the multiple terminal equipments such as PC, mobile phone, set-top box according to user's request.Simultaneously, for adapting to different bandwidth user's demand, system can play corresponding video format as required, the network that is suitable for high bandwidth such as the MPEG2 of complete DVD quality, and MPEG4, WMV, RM are fit to low-bandwidth network, therefore support different stream media formats can offer the perfect order program service of user under different bandwidth situation.
Simultaneously, dispose theory in conjunction with popular content intelligence distribution function and CDN, the user who is distributed in various places can have access to the Distributor that this content can be provided more easily at one's side, and with its access to content source as limit priority, need not to take more backbone network resource, avoided the generation of across a network, trans-regional visit situation, can finish content distribution regional span big this operation platform.Utilize the CDN technology that transfer of content is arrived in the autonomous territory at client place, and stable information source is provided, ensure the user capture quality, utilize the advantage of CDN to solve user's dynamic problem and level of resources utilization problem.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module comprises: the multiple terminals access server is used for the type of terminal is judged, and according to the type of terminal terminal is linked into cloud mode streaming media service platform; (Edge StreamingServer ESS), is used to realize that terminal obtains the program request or the live downloading service of being asked as required by content distributing network to Edge Server.
Fig. 2 shows cloud mode streaming media service platform service procedure figure according to an embodiment of the invention, cloud streaming media service platform (also being present embodiment indication cloud mode streaming media service platform) both can be served the user who watches video requirement, also can serve the user of broadcast demand.As shown in Figure 2, watch the user of video for needs, cloud steaming media platform service mode is: 1) the cloud terminal inserts the Internet; 2) the cloud terminal sends personalized Streaming Media request service to the cloud steaming media platform; 3) the cloud steaming media platform returns the service of cloud terminal request; 4) playing request streaming media service on the cloud terminal.For user that the playing stream media demand is arranged or ICP (ICP), steaming media platform can be realized its effective streaming medium content distribution, its service mode is: 1) ICP access network, upload the file that streaming media service need be provided to the cloud steaming media platform; 2) ICP is provided by web by the streaming media service type need the cloud steaming media platform to provide; 3) ICP uploads authorized user group information and authority to the cloud steaming media platform; 4) transcoding and function are customized as required as required to the user video content for the cloud steaming media platform; 5) user's distribution media of cloud steaming media platform subtend ICP appointment stream; 6) on the user terminal that has web to insert the customized streaming media service of ICP appears.
At the excessive streaming media service of userbase, for alleviating streaming media service platform pressure, present embodiment also provides P2P (Peer-to-Peer, peer-to-peer network) the access form of part cloud terminal.For example, in the present embodiment, terminal can adopt P2P to insert, and promptly offers the part bandwidth resources and enriches that user's (as high bandwidth pc user and set-top box users) " directly obtains resource " and " shared form is obtained resource " two kinds of access waies.As user during with " share with form obtain resource ", the P2P client that can utilize the cloud mode streaming media service platform platform to provide is shared it and is uploaded bandwidth, form the expansion cloud of convergent terminal, thereby under server cost fixation case, enlarged the service scale of cloud steaming media platform.In addition, this kind is at the differentiation formula P2P way of realization of different terminals ability, be different from the conventional P 2P stream media system and upload requirement terminal is enforceable, can select whether to press P2P according to the different terminals ability inserts, the client strictness that P2P is inserted is simultaneously controlled it and is taken the ratio (less than 60%) of user's available bandwidth, for the user reserves sufficient bandwidth resources, to guarantee the smooth and easy of other Networks of user.Fig. 3 shows the expansion cloud mode streaming media service platform schematic diagram that merges the multiple terminals ability according to an embodiment of the invention.
In the above-described embodiments, cloud mode streaming media service platform adopts the distributed storage pattern, all the elements distributed storage of being issued is in the streaming media server of limit and among the user of part " form of sharing is obtained resource " state, alleviate the pressure that user capture causes for localized services device and bandwidth, guaranteed the stability of streaming media server issue.Simultaneously, each user can obtain program source from more approach, makes to watch obtaining of content source in the way more stable, guarantees that video playback do not have the generation of phenomenons such as buffering, interruption.
Cloud mode streaming media service platform is divided server by function, make every kind of function server carry out more professional work, has improved the service quality of system.Quote distributed server and dispose theory, with server by function, by the region, disperse by different modes such as demands, make system service have more specific aim, with user and the area that the input demand is big in more resource set, the user that demand is little drops into relative less resource with the area, has improved resource utilization and integrity service and has been worth.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module also comprises: upload and push server, be used for the data of Edge Server are pushed to terminal, and allowing terminal to upload the cloud computing terminal that data form expansion to Edge Server, present embodiment has further been realized terminal use video access and issue as required.
Preferably, in above-mentioned cloud mode streaming media service platform, navigation module also comprises: the real-time transcoding server, be used for terminal is carried out transcoding as required by uploading the data of uploading with push server, and in conjunction with upload with the data flow transmission of push server after with transcoding to a plurality of terminals, realized real-time passing, the video flowing of correspondence has been sent in the multi-terminal user, made the user not need the local decode just can the displaying video content while changeing.
Preferably, in above-mentioned cloud mode streaming media service platform, data module comprises: database server (Database Server, DBS), be used to receive dynamic data that the central control server cluster will preserve and return each data in server information that is temporarily stored in to the central control server cluster.
Preferably, in above-mentioned cloud mode streaming media service platform, control module comprises: central control server cluster (Central Control Cluster Server, CCS), be used for storing the Resources list of data module server, and, user's request of terminal is directed to the server of the not load surplus that has request content according to the request content of terminal and the load state of server.
In the present embodiment, CCS is at all Server, and main being responsible for reaches mutual to the management of information of Servers-all in the cluster; CCS utilizes optimized Algorithm to carry out load analysis at all Server, and streaming medium content is assigned to the optimum Streaming Media Edge Server of load, the connection of server node is carried out load and can be connected the group and analyze, comprise nearby, the selection principle of optimal service source, best number of connection; CCS is divided into two-layer, and one deck is responsible for overall situation control for center C CS; Two layers is regional CCS, is responsible for the control in the area.
From the logic aspect of service platform, as shown in Figure 6, DBS server composition data layer provides video content source; CCS, CDN (Content Delivery Network, content distributing network) and TUS (Transmission Upload Server, the edge upload server) in management level, wherein CCS plays overall controlled function, CDN and TUS unite realized content from central server by content distributing network to Edge Server at last to terminal use's transmission.At User Access Layer, the multiple terminals access server constitutes the navigation module that terminal inserts.From the client layer angle, system realizes that the user obtains the business such as the live download of program request of being asked as required by web.
In content distribution, cloud mode streaming media service platform has by temperature intelligence distribution function according to different operation situations, comprises the pre-distribution of content and by intelligent temperature distribution:
Content is distributed in advance, the content of peak visit for example will appear estimating at visit capacities such as certain new film, silver screen hits, streaming media server can be by control centre in this content release, it is distributed to the CDN server of each department, user for this area provides Video service specially, realize user's visit shunting, backbone bandwidth was required problems such as high to solve the excessive server stress that causes of popular access to content amount and each department user's central access.
By the distribution of temperature intelligence, by the temperature distribution.Streaming media server will be according to the access times of user to a certain video, and Automatic sieve is selected and reached the content that the user capture temperature requires, and the content of selecting is distributed to the CDN server of its visit capacity than higher user location.The distribution temperature can dynamically be set according to the service ability of cloud mode streaming media service platform.
In the cloud mode streaming media service platform of the foregoing description, server adopts the centralized management framework of C/S model, simultaneously also in conjunction with the distribution management thought.In user's request of multiple terminals, all user access activities, server job information, content resource information, node processing information etc. are all carried out unified management by the management system of concentrating.For avoiding managing bottleneck, management server CCS is divided into two-layer, and center control centre is responsible for global administration, and area control center is responsible for the area management.Its management can be divided into to the management of the network information with to the deployment of framework to be managed.Network information management is present in the whole streaming medium content delivery network, the user produces the tabulation of video request, server lookup content resource and user list, feedback content source information, the user presents according to tabulation accessing video content, the transmission of content and the terminal of content, all need the allotment of management system just can finish in steps, management mode makes system management convenient completely.So operation is all finished by the cloud service platform simultaneously, the user only need ask and obtain two operations of service.
For example, according to an embodiment of the invention multi-terminal user streaming media video issue and Video service step following (A is the video distribution user; B is the video-see user): 1) the A terminal use sends the issue video request; 2) cloud steaming media platform CCS accepts request and leads and uploads the TUS server; 3) cloud steaming media platform TUS server reception A terminal use video is uploaded; 4) the cloud steaming media platform arrives Edge Server ESS with content caching; 5) multi-terminal user B sends by the Internet and watches video request (comprising video content request and form request); 6) the cloud steaming media platform provides format analysis processing module guiding according to request content for user B; 7) cloud steaming media platform center C CS is to B request content resource lookup; 8) cloud steaming media platform processing module as required real-time transcoding and buffer memory to streaming media server; 9) the local CCS secondary resource of cloud steaming media platform is searched; 10) distribution of the content edge of cloud steaming media platform and propelling movement are to the party B-subscriber; 11) the request video content appears on the multi-terminal user B screen.Fig. 4 shows multiple terminals secondary guiding schematic diagram according to an embodiment of the invention.
Again for example, PC and set-top box users insert cloud mode streaming media service platform simultaneously.System does not rely on specific hardware device, supports computer and " IP set-top box+television set " terminal applies simultaneously, has merged functions such as content acquisition making, catalogue storage, copyright protection, audit issue, net distribution, authentication broadcast.Common service procedure is: 1) set-top box users sends video request by the Internet; 2) cloud steaming media platform CCS global resource in server and user is searched; 3) the preferential guiding of cloud steaming media platform CCS resource lookup has the pc user of this request resource; 4) cloud steaming media platform CCS this PC address of heavily leading; 5) set-top box users is obtained resource from PC; 6) set-top box users buffer memory partial video content is searched for CCS and is heavily led.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is the pc user, terminal is inserted cloud mode streaming media service platform by the WEB server.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is set-top box users, terminal is inserted cloud mode streaming media service platform by EPG (Electronic Program Guide, electric program menu) server.
Preferably, in above-mentioned cloud mode streaming media service platform, when the type of terminal is mobile phone users, terminal is inserted cloud mode streaming media service platform by the WAP server.
Preferably, in above-mentioned cloud mode streaming media service platform, the access way of above-mentioned terminal is direct access mode and/or P2P mode.
The trafficwise of being supported in the above-mentioned cloud mode streaming media service platform comprises live, and program request and downloading service in addition, had both been supported the user of video distribution demand, also supports to have the user of video-see demand.
Fig. 5 shows cloud mode streaming media service platform configuration diagram (terminal picture wherein is the effect screen sectional drawing) in accordance with a preferred embodiment of the present invention.
In the above-described embodiments, cloud mode streaming media service platform is based on application such as video request program, net cast, CMS, interactive chat, Web conferences, the one-stop broadband streaming media operation platform that makes up, also support authentication and accounting and operation management, satisfy the needs of broadband streaming media operation based on effectiveness calculating.As a service platform, the cloud streaming media service platform does not have particular requirement to the form of terminal and the form of media content, and the network user who can be isomery inserts comprehensive compatibility and support are provided.
Resource owing to some high configuration server in the prior art is many, and common cloud mode streaming media service platform can't make full use of resource, as the use of internal memory, CPU, these softwares are low to hardware availability ratio, caused the serious waste of hardware resource.The multi-process processing capacity that the above embodiment of the present invention can provide by cloud mode streaming media service platform, can be under reasonable terms, utilize hardware resource more fully, to reach the purpose of saving hardware resource, be implemented on same the physical server and open a plurality of logical servers, and make all logical server unit all realize load-balancing function with other physical servers.
Based on the load-balancing function of system, can make all physical servers and logical server, have close user capture amount, guarantee that the Servers-all operating load is average, avoid the excessive situation of individual servers free time or pressure to take place.Combine the load-balancing function of multi-process treatment technology, can improve server utilization and stability greatly,, realize the integral pressure balance, improve whole platform operating efficiency by of the automatic shunting of center Control Server to the user.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a cloud mode streaming media service platform is characterized in that, comprising: navigation module, data module, control module and content distributing network module, wherein
Described navigation module, be used for dissimilar terminals is judged, type according to described terminal is linked into described cloud mode streaming media service platform with described terminal, and the data flow of asking to described terminal transmission, and described navigation module comprises: the multiple terminals access server, be used for the type of described terminal is judged, and described terminal be linked into described cloud mode streaming media service platform according to the described type of described terminal; Edge Server is used to realize that terminal obtains the video request program or the live or downloading service of being asked as required by described content distributing network module; Upload and push server, be used for the data of described Edge Server are pushed to described terminal, and allow described terminal to upload the cloud computing terminal that data form expansion to described Edge Server; The real-time transcoding server is used for described terminal is carried out transcoding as required by the described described data of uploading with push server of uploading, and in conjunction with described upload with the data flow transmission of push server after with transcoding to a plurality of terminals;
Described data module, be used for stored video data, and described data module comprises: database server is used to receive dynamic data that the central control server cluster will preserve and returns each data in server information that is temporarily stored in to described central control server cluster;
Described control module, be used for request according to described terminal, by described content distributing network module described video Data Transmission is arrived described terminal, and described control module comprises: described central control server cluster, be used for storing the Resources list of the server that described data module stores, and, user's request of described terminal is directed to the described server of the not load surplus that has the described request content according to the request content of terminal and the load state of described server;
Described content distributing network module is used for by described navigation module described terminal being linked into the nearest server that described data module has institute's request content.
2. cloud mode streaming media service platform according to claim 1 is characterized in that, when the type of described terminal is the pc user, described terminal is inserted described cloud mode streaming media service platform by the WEB server.
3. cloud mode streaming media service platform according to claim 1 is characterized in that, when the type of described terminal is set-top box TV user, described terminal is inserted described cloud mode streaming media service platform by EPG server.
4. cloud mode streaming media service platform according to claim 1 is characterized in that, when the type of described terminal is mobile phone users, described terminal is inserted described cloud mode streaming media service platform by the WAP server.
5. cloud mode streaming media service platform according to claim 1 is characterized in that, the access way of described terminal is direct access mode and/or P2P mode.
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