CN101453623B - Interactive network television system, stream distribution method thereof - Google Patents
Interactive network television system, stream distribution method thereof Download PDFInfo
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Abstract
The invention relates to an interactive network television system and a stream distribution method thereof. The method comprises: a content preparation function module (20) sends a stream distribution request; according to a distribution strategy, a content position and distribution overall control function module (310) and a content delivery and storage control function module (320) generate a distribution task and transmit the stream distribution request to a content delivery and storage function module (330); the content preparation function module (20) receives a stream distribution confirmation message and distributes stream to the content delivery and storage function module (330); and an IPTV terminal (40) receives the stream, wherein the system adopts the stream distribution method. The method and the system adopting the method make the stream distribution flow clear and simple and function of each module clear and definite, reduce interaction between the functions and promote the performance of the IPTV system.
Description
Technical field
The present invention relates to the IPTV field, be specifically related to a kind of interactive Web TV system and stream distributing method thereof.
Background technology
IPTV, be IPTV, it is a kind of broadband cabled television network that utilizes, integrate multiple technologies such as the Internet, multimedia, communication, the brand-new technology of the multiple interactive services that comprises Digital Television is provided to the domestic consumer, in recent years, can satisfy multiple demands such as people's receiving digital television program, visible IP phone, internet browsing and business function with it and be subjected to pursuing of numerous manufacturers, just progressively promote and come.Along with the development of IPTV technology and the increase of IPTV use number of users, Performance And Reliability to the IPTV system is had higher requirement, the very important content delivery function that is different from numerous business among the IPTV particularly, because it mainly is responsible for finishing heap file or the live TV stream that numerous service providers provide, distribution of the content of Shi Yiliu and storage and to the Video service of terminal, thereby the terseness and the reliability of content distribution and operation flow had higher requirement, need emphasis consider its function Reasonable Orientation and and other functions mutual, the major responsibility of distinct its inner each functional module of trying one's best, mutual and mutual in the minimizing system between the various piece with the function of other system, thereby obtain better user experience, improve the performance of IPTV system.
The IPTV technology also is in developing stage at present, international and domestic relevant criterion formulation work also is in the starting stage, the IPTV product of each manufacturer comprises that to each subsystem in the IPTV system location of IPTV termination function, IPTV application function, content distribution function, management function etc. and interface logic contextual definition each other are still unintelligible.Be based on next generation network Next Generation Network, be called for short the NGN framework, based on IP Multimedia System IP Multimedia Subsystem, be called for short the IMS framework and also be based on realization interactive network TV service under the non-NGN framework, and how to realize that under these frameworks interactive network TV service is the focus of each big normal structure research at present, also do not come to a conclusion at present, such as, under the IMS framework, how to support this complex video class of IPTV business to go back neither one solution preferably at present.
Therefore, how to design an efficient content delivery system, distribute, reduce as far as possible a very important problem in the great number of issues that becomes the IPTV systems face alternately between each function to finish based on the content of file and stream.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of interactive Web TV system and stream distributing method thereof, can make each subsystem responsibility clear and definite in the IPTV system, make content distribution delivery process clear simple, further improve the performance of IPTV system.
Above-mentioned first technical problem of the present invention solves like this, and a kind of stream distributing method of interactive Web TV system is provided, and may further comprise the steps:
1.1) content preparatory function module sends the stream distribution request message by intermodule interface to location of content and the overall control function module of distribution;
1.2) location of content produces distributed tasks and by intermodule interface the stream distribution request message is transmitted to content delivery and storage control function module according to distribution policy with the overall control function module of distribution;
1.3) content delivery produces distributed tasks and by intermodule interface the stream distribution request message is transmitted to content delivery and memory function module according to distribution policy with the storage control function module;
1.4) content preparatory function module is dealt into content delivery and memory function module by intermodule interface with flow point after receiving the stream distribution acknowledge message.
According to distribution method provided by the invention, described step 1.1) also comprise: content supplier sends to content preparatory function module by the IPTV network with content.
According to distribution method provided by the invention, described step 1.1) content preparatory function module described in need be finished the preparation that stream is sent to the content delivery functional module before carrying out the stream distribution request to location of content and the overall control function module of distribution.
According to distribution method provided by the invention, that the described preparation that stream is sent to the content delivery functional module comprises is content-aggregated, in the Content Management, content encoding, content-encrypt quadrinomial job at least one.
According to distribution method provided by the invention, described location of content and the overall control function module of distribution in the process of content delivery functional module, select suitable content delivery and storage control function module that service be provided according to content delivery and position, the load state information of storage control function module of the overall situation in the content delivery functional module at IPTV terminal chosen content or content preparatory function module distributing contents.
According to distribution method provided by the invention, described step 1.3) distribution policy comprises described in: content delivery and storage control function module are specified the static distribution policy of the content delivery that will be distributed to and memory function module and will be flowed transmission according to position, the ability information of the load condition information of content delivery and memory function module or IPTV terminal and be assigned to dynamic distribution policy on selected content delivery and the memory function module.
According to distribution method provided by the invention, described step 1.3) and step 1.4) between also comprise: content delivery and memory function module are returned the stream distribution acknowledge message to content delivery and storage control function module; Content delivery returns the stream distribution acknowledge message with the storage control function module to location of content and the overall control function module of distribution; Location of content will be transmitted to content preparatory function module from content delivery and the stream distribution acknowledge message that the storage control function module receives with the overall control function module of distribution.
According to distribution method provided by the invention, described content delivery and memory function module comprise pays function sub-modules, buffer memory and memory function submodule and distribution function submodule.
According to distribution method provided by the invention, described step 1.4) also comprise: pay function sub-modules in described content delivery and the memory function module content stream of accepting is delivered to the IPTV terminal by the IPTV network.
According to distribution method provided by the invention, described payment function sub-modules also provides from the file of media client and downloads and upload function.
Above-mentioned another technical problem of the present invention solves like this, a kind of interactive Web TV system is provided, comprise content preparatory function module, location of content and distribution overall situation control function module, content delivery and storage control function module and content delivery and memory function module, this system carries out stream distributing method like this: content preparatory function module sends the stream distribution request message by intermodule interface to location of content and the overall control function module of distribution; Location of content produces distributed tasks and by intermodule interface the stream distribution request message is transmitted to content delivery and storage control function module according to distribution policy with the overall control function module of distribution; Content delivery produces distributed tasks and by intermodule interface the stream distribution request message is transmitted to content delivery and memory function module according to distribution policy with the storage control function module; Content preparatory function module is dealt into content delivery and memory function module by intermodule interface with flow point after receiving the stream distribution acknowledge message.
A kind of interactive Web TV system provided by the invention and stream distributing method thereof, clear process is simple, the responsibility clear and definite of each module, extensibility is good, can be simultaneously compatible at present based on IMS framework, NGN framework with based on the IPTV system of non-NGN framework; Further, reduce in the system mutual between the various piece function, strengthened low cost, reliability and the autgmentability of IPTV system various piece, promoted the core competitiveness of IPTV system.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of the content delivery system distribution of IPTV of the present invention.
Fig. 2 is the stream distributing method flow chart that the embodiment of the invention is used for interactive Web TV system.
Fig. 3 is the stream distributing method flow chart of the interactive Web TV system of another embodiment of the present invention.
Embodiment
The present invention is used for module that content delivery functional module 30 that the stream distributing method of interactive Web TV system adopts and distribution thereof relate to as shown in Figure 1, and the function of each module is as follows:
Content preparatory function module 20:, comprise that content that the third party system outside the IPTV system provides and metadata carry out the module of functions such as content-aggregated, Content Management, metadata processing, content-encrypt to the content that content supplier 10 provides.The content that this functional module can be used for converted contents provider 10 and provide becomes the form that known needs send to IPTV terminal 40.The content that content supplier 10 provides is at first obtained by the content-aggregated function in the content preparatory function module 20, metadata and authority information send to metadata processing capacity module then, and content generally need utilize contents processing and content-encrypt function to encode again and encrypt before sending to the content delivery functional module.
Location of content and the overall control function module 310 of distribution, be made of Position Control function sub-modules 311 and distribution controlled function submodule 312: in the process of content delivery functional module 30, the content delivery that is fit to according to Information Selection such as the position of the content delivery of the overall situation in the content delivery functional module 30 and storage control function module 320, loads provides service with storage control function module 320 at IPTV terminal 40 content choice or content preparatory function module 20 distributing contents.
Content delivery and storage control function module 320, by paying controlled function submodule 321, position functions submodule 322 and distribution controlled function submodule 323 formations: the content choice or the dispense request of response contents position and the overall control function module 310 of distribution, according to the content delivery in the local content payment function of content delivery and storage control function module 320 and content delivery of controlling and memory function module 330 and the position of memory function module 330, the final content delivery and the memory function module 330 that are fit to of Information Selection such as load condition provides service.
Content delivery and memory function module 330: finish distribution, buffer memory and memory contents and send to terminal use's function.This functional module can be handled the medium control messages, for example: time-out, F.F., with the Media Stream of control IPTV system.This functional module mainly comprises pays function sub-modules 331, buffer memory and memory function submodule 332 and the distribution function submodule determines 333.Paying function sub-modules 331 mainly is that the content stream that will pay sends to media client with clean culture or multicast mode, also can provide from the file of media client and download and upload function.Buffer memory and memory function submodule 332 main buffer memory time shift, live TV stream and the storage flow be responsible for.Distribution function submodule 333 mainly is responsible for distribution live TV stream and storage flow between the payment of content delivery and memory function module 330 inside and memory function, also can accept the content of content preparatory function module 20.
Content supplier 10: have or the supplier of be authorized to offer for sale content or content assets.
IPTV terminal 40: adopt the hard-wired terminal equipment that has set-top box functionality or adopt pure software to realize of IPTV, also comprise the function of home network simultaneously with IPTV set-top box functionality.
Fig. 2 is the stream distributing method flow chart that the embodiment of the invention is used for interactive Web TV system, may further comprise the steps:
100) content preparatory function module 20 is carried out stream distribution request to location of content and the overall control function module 310 of distribution;
101) location of content produces distributed tasks according to distribution policy after receiving the stream distribution request of content preparatory function module 20 with the overall control function module 310 of distribution;
102) location of content will flow to send with the overall control function module 310 of distribution and ask to be transmitted to content delivery and storage control function module 320;
103) content delivery and storage control function module 320 produce distributed tasks according to distribution policy after receiving the stream distribution request of location of content and the overall control function module 310 of distribution;
104) content delivery will flow to send with storage control function module 320 and ask to be transmitted to content delivery and memory function module 330;
105) content preparatory function module 20 is dealt into content delivery and memory function module 330 with flow point.
In step 100) in, content preparatory function module 20 is before location of content and the overall control function module 310 of distribution are carried out the stream distribution request, content preparatory function module 20 is finished stream is sent to content delivery and the preparation of storing control function module 320, at least one item in may further comprise the steps: file content is carried out polymerization, file content is encoded, file content is carried out Content Management and file content is carried out encryption.
In step 101) in, content delivery and storage control function module 320 that distribution policy can adopt the static configuration appointment to be distributed to, also can enable the mode of dynamic distribution policy carries out, promptly according to the service state of content delivery with storage control function module 320 or its accessed content delivery and memory function module 330, it is information on load, stream sent be assigned on selected content delivery and the storage control function module 320, also can be according to information decisions such as the position of IPTV terminal 40, abilities.
In step 101) in, the distributed tasks of generation is a content delivery and the tabulation of storing control function module 320, the URL address of this tabulation content payment and storage control function module 320 and port information etc.Content delivery can be one with storage control function module 320 in the tabulation, also can be a plurality of.
In step 102) in, if comprise a plurality of content deliveries and storage control function module 320 in the distributed tasks that step 101 produces, then location of content will flow to send with the overall control function module 310 of distribution and ask to be transmitted to all content deliveries and storage control function module 320;
In step 103) in, distribution policy can adopt static configuration to specify the content delivery and the memory function module that will be distributed to, also can enable the mode of dynamic distribution policy carries out, promptly according to the service state of content delivery and memory function module 330, it is information on load, stream sent be assigned on the load little content delivery and memory function module 330, also can determine according to information such as the position of IPTV terminal 40, abilities.
In step 103) in, the distributed tasks of generation is the tabulation of a content delivery and memory function module 330, the URL address of this tabulation content payment and memory function module 330 and port information etc.Content delivery and memory function module 330 can be one in the tabulation, also can be a plurality of.
In step 104) in, if comprise a plurality of content deliveries and memory function module 330 in the distributed tasks that step 103 produces, then content delivery will flow to send with storage control function module 320 and ask to be transmitted to all content deliveries and memory function module 330;
In step 104) afterwards, content delivery and memory function module 330 are confirmed the stream request message to content delivery and storage control function module 320; Content delivery and memory function module 330 returned content positions and the overall control function module 310 stream distribution acknowledge messages of distribution; Location of content sends to content preparatory function module 20 with the message that is transmitted to stream that the overall control function module 310 of distribution is obtained content delivery and storage control function module 320.
In step 105) afterwards, the content delivery function sub-modules 331 in content delivery and the memory function module 330 is accepted Media Stream.
Fig. 3 is the stream distributing method flow chart of the interactive Web TV system of another embodiment of the present invention, and its prerequisite is: content supplier 10 will flow, and generally refer to live TV stream, send to content preparatory function module 20.Specifically may further comprise the steps:
200) content preparatory function module 20 content-aggregated, content encoding, Content Management and the encryption etc. of finishing live TV stream send to the preparation before the content delivery functional module 30;
201) content preparatory function module 20 is carried out the request of distribution flow to location of content and the overall control function module 310 of distribution;
202) location of content produces distributed tasks according to distribution policy after receiving the stream distribution request of content preparatory function module 20 with the overall control function module 310 of distribution, relaying is carried out in the request of convection current in real time, static mode distribution live TV stream be can adopt, the content delivery and storage control function module 320 that will be distributed to specified by static configuration.Also can enable the mode of dynamic distribution policy carries out, according to the service state of content delivery with storage control function module 320 or its accessed content delivery and memory function module 330, it is information on load, stream sent be assigned on the selected content delivery of strategy and the storage control function module 320, also can be according to information decisions such as the position of terminal, abilities;
203) location of content sends request with the overall control function module 310 of distribution to content delivery and the stream of storing control function module 320 forwarding content preparatory function modules 20;
204) content delivery and storage control function module 320 produce distributed tasks according to distribution policy after receiving the stream distribution request of location of content and the overall control function module 310 of distribution, relaying is carried out in the request of convection current in real time, can adopt static mode distribution live TV stream, specify the content delivery and the memory function module 330 that will be distributed to by static configuration, also can enable the mode of dynamic distribution policy carries out, service state according to content delivery and memory function module 330, it is information on load, the stream transmission is assigned on the load little content delivery and memory function module 330, also can be according to the position of terminal, the decision of information such as ability;
205) content delivery sends request with storage control function module 320 to content delivery and memory function module 330 forwarding flows;
206) content delivery and memory function module 330 returned contents are paid and storage control function module 320 stream distribution acknowledge messages;
207) content delivery and storage control function module 320 returned content positions and the overall control function module 310 stream distribution acknowledge messages of distribution;
208) location of content sends to content preparatory function module 20 with the overall control function module 310 of distribution with content delivery and the message that is transmitted to stream obtained of storage control function module 320;
209) content preparatory function module 20 is distributed to content delivery and memory function module 330 according to the live TV stream relaying strategy of appointment with live TV stream according to the message of returning;
210) the payment function sub-modules in content delivery and the memory function module 330 331 is accepted Media Stream as relaying, and the user can ask this Media Stream.
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 (10)
1. the stream distributing method of an interactive Web TV system is characterized in that, may further comprise the steps:
1.1) content preparatory function module (20) sends the stream distribution request message by intermodule interface to location of content and the overall control function module of distribution (310);
1.2) location of content produces distributed tasks with the overall control function module of distribution (310) according to distribution policy, the distributed tasks that produces is a content delivery and the tabulation of storing control function module (320), and location of content is transmitted to content delivery and storage control function module (320) by intermodule interface with the stream distribution request message with the overall control function module of distribution (310);
1.3) content delivery produces distributed tasks with storage control function module (320) according to distribution policy, the distributed tasks that produces is the tabulation of a content delivery and memory function module (330), and content delivery is transmitted to content delivery and memory function module (330) by intermodule interface with the stream distribution request message with storage control function module (320);
1.4) content preparatory function module (20) is dealt into content delivery and memory function module (330) by intermodule interface with flow point after receiving the stream distribution acknowledge message.
2. according to the described distribution method of claim 1, it is characterized in that described step 1.1) also comprise: content supplier (10) sends to content preparatory function module (20) by the IPTV network with content.
3. according to the described distribution method of claim 1, it is characterized in that, described step 1.1) module of content preparatory function described in (20) need be finished the preparation that stream is sent to content delivery functional module (30) before carrying out the stream distribution request to location of content and the overall control function module of distribution (310).
4. according to the described distribution method of claim 3, it is characterized in that that the described preparation that stream is sent to content delivery functional module (30) comprises is content-aggregated, in the Content Management, content encoding, content-encrypt quadrinomial job at least one.
5. according to the described distribution method of claim 1, it is characterized in that, described location of content and the overall control function module of distribution (310), are selected suitable content delivery and are stored control function module (320) service is provided according to the content delivery in the content delivery functional module (30) and position, the load state information of storage control function module (320) to the process of content delivery functional module (30) at IPTV terminal (40) chosen content or content preparatory function module (20) distributing contents.
6. according to the described distribution method of claim 1, it is characterized in that described step 1.3) described in distribution policy comprise: content delivery and storage control function module (320) are specified the static distribution policy of the content delivery that will be distributed to and memory function module (330) and according to the position of the load condition information of content delivery and memory function module (330) or IPTV terminal (40), ability information the stream distribution request message are assigned to dynamic distribution policy on selected content delivery and the memory function module (330).
7. according to the described distribution method of claim 1, it is characterized in that described step 1.3) and step 1.4) between also comprise: content delivery and memory function module (330) to content delivery with the storage control function module (320) return the stream distribution acknowledge message; Content delivery returns the stream distribution acknowledge message with storage control function module (320) to location of content and the overall control function module of distribution (310); Location of content will be transmitted to content preparatory function module (20) from content delivery and the stream distribution acknowledge message that storage control function module (320) receives with the overall control function module of distribution (310).
8. according to the described distribution method of claim 1, it is characterized in that described content delivery and memory function module (330) comprise pays function sub-modules (331), buffer memory and memory function submodule (332) and distribution function submodule (333).
9. according to the described distribution method of claim 1, it is characterized in that described step 1.4) also comprise: pay function sub-modules (331) in described content delivery and the memory function module (330) the content stream of accepting is delivered to IPTV terminal (20) by the IPTV network.
10. interactive Web TV system, comprise content preparatory function module (20), location of content and distribution overall situation control function module (310), content delivery and storage control function module (320) and content delivery and memory function module (330), it is characterized in that this system carries out stream distributing method like this: content preparatory function module (20) sends the stream distribution request message by intermodule interface to location of content and the overall control function module of distribution (310); Location of content produces distributed tasks with the overall control function module of distribution (310) according to distribution policy, the distributed tasks that produces is a content delivery and the tabulation of storing control function module (320), and location of content is transmitted to content delivery and storage control function module (320) by intermodule interface with the stream distribution request message with the overall control function module of distribution (310); Content delivery produces distributed tasks with storage control function module (320) according to distribution policy, the distributed tasks that produces is the tabulation of a content delivery and memory function module (330), and content delivery is transmitted to content delivery and memory function module (330) by intermodule interface with the stream distribution request message with storage control function module (320); Content preparatory function module (20) is dealt into content delivery and memory function module (330) by intermodule interface with flow point after receiving the stream distribution acknowledge message.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1964481A (en) * | 2005-11-11 | 2007-05-16 | 中兴通讯股份有限公司 | An interactive network TV system |
| CN101026615A (en) * | 2006-02-18 | 2007-08-29 | 华为技术有限公司 | IMS-based flow media network system |
| CN101026631A (en) * | 2006-12-28 | 2007-08-29 | 中兴通讯股份有限公司 | CDN structure based IPTV system media payment system |
| CN101068343A (en) * | 2007-03-16 | 2007-11-07 | 中兴通讯股份有限公司 | Video frequency monitoring system based on IPTV system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1964481A (en) * | 2005-11-11 | 2007-05-16 | 中兴通讯股份有限公司 | An interactive network TV system |
| CN101026615A (en) * | 2006-02-18 | 2007-08-29 | 华为技术有限公司 | IMS-based flow media network system |
| CN101026631A (en) * | 2006-12-28 | 2007-08-29 | 中兴通讯股份有限公司 | CDN structure based IPTV system media payment system |
| CN101068343A (en) * | 2007-03-16 | 2007-11-07 | 中兴通讯股份有限公司 | Video frequency monitoring system based on IPTV system |
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