CN102186103A - Program on demand request transmission method and system - Google Patents
Program on demand request transmission method and system Download PDFInfo
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- CN102186103A CN102186103A CN2011100993970A CN201110099397A CN102186103A CN 102186103 A CN102186103 A CN 102186103A CN 2011100993970 A CN2011100993970 A CN 2011100993970A CN 201110099397 A CN201110099397 A CN 201110099397A CN 102186103 A CN102186103 A CN 102186103A
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Abstract
The invention discloses a program on demand request transmission method, which comprises the following steps that: a digital television system transmits a program on demand request for a certain video on demand (VOD) system to an independent on demand gateway connected with a plurality of VOD systems; the independent on demand gateway converts the program on demand request according to a preset protocol corresponding to the VOD system; and the independent on demand gateway transmits the converted program on demand request to the VOD system. In addition, the invention also discloses a program on demand request transmission system, which comprises the digital television system and the independent on demand gateway, wherein the digital television system is used for transmitting the program on demand request for the certain VOD system to the independent on demand gateway connected with the plurality of VOD systems; and the independent on demand gateway is used for converting the program on demand request according to the preset protocol corresponding to the VOD system, and transmitting the converted program on demand system to the VOD system. In the method and the system, the digital television system is not required to be integrated with a VOD protocol, and the VOD systems can be flexibly increased and the system running stability can be improved under the condition of not upgrading the digital television system.
Description
Technical field
The present invention relates to the cable television VOD technical field, particularly a kind of play-on-demand program request sending method and system.
Background technology
Can provide the producer of VOD (Video On Demand, video request program) system to have much at present,, change one's mind, Huawei, grand day producer such as dolantin as the continent.Owing to there is not unified standard, the interaction protocol of each tame producer is not quite similar again, cause wired operator when selecting digital TV terminal producer, to have to consider the agreement that this digital TV terminal whether can integrated how tame VOD, perhaps provide unified program request gateway by some VOD producer, digital TV terminal needs the program request agreement of integrated this family, finishes the adaptive of other producer's agreement by the program request gateway of this VOD producer.Prior art mainly contains two kinds of situations: the agreement of integrated how tame VOD in the prior art one, digital TV terminal; The program request gateway that VOD manufacturer of integrated a certain family provides in the prior art two, digital TV terminal, the program request gateway of this VOD manufacturer is in the VOD agreement of other family of the digital TV front-end system integration.
Prior art one, the agreement of integrated how tame VOD in the digital TV terminal, promptly the interior integrated VOD agreement of different manufacturers of digital TV terminal can be supported in the front-end server of visiting different manufacturers in the same box simultaneously; The VOD system is arbitrary in the integrated VOD system of digital TV terminal in this representative.For example, digital TV terminal promptly can be visited the front-end server with the continent when entering TV, the front-end server that visit is changed one's mind when entering video request program, also can in digital TV terminal, be provided with, decision is to select visit with continent VOD system front end server or change one's mind VOD system front end server, thereby reaches the purpose of compatible how tame VOD system front end server.
See also accompanying drawing 1, be the program request flow chart of integrated how tame VOD agreement in the digital TV terminal in the prior art one.Wherein, digital TV terminal is represented the client of RTSP (Real Time Streaming Protocol, real time streaming transport protocol), VOD system representation RTSP server end.
Step 101: digital TV terminal sends DESCRIBE (media description information initialization) request to the VOD system, VOD system responses DESCRIBE request;
Concrete, digital TV terminal sends the DESCRIBE request to the VOD system, and digital TV terminal requires to obtain the media initialize descriptor that the VOD system provides; VOD system responses DESCRIBE request, VOD system responses media initialize descriptor.
Step 102: digital TV terminal sends the SETUP request to the VOD system, VOD system responses SETUP request;
Concrete, digital TV terminal sends the SETUP request to the VOD system, and the digital TV terminal request is provided with the attribute of session, and transmission mode, reminds the VOD system to set up session; VOD system responses SETUP request, the VOD system sets up session, and returns Session ID and session related information.
Step 103: digital TV terminal sends the PLAY request to the VOD system, VOD system responses PLAY request;
Concrete, digital TV terminal sends the PLAY request to the VOD system, and the digital TV terminal request is play; VOD system responses PLAY request, the VOD system responds solicited message, and the VOD system sends multi-medium data to digital TV terminal.
But, adopt this kind scheme that following defective is arranged:
One, needs to support various protocols in the digital TV terminal, be unfavorable for that digital TV terminal producer develops fast.
If two VOD agreement manufacturers provide with the form in storehouse, also might be because of the reason of link, causing can't be simultaneously integrated.
Three, the integrated VOD agreement of digital TV terminal difficulty height, digital TV terminal producer and VOD producer need spend the plenty of time to carry out integrated and on-the-spot uniting and adjustment.
Four, under the situation of the digital TV terminal of not upgrading, operator can't increase new VOD producer.
Five, the VS video server of VOD producer can't be shared, and causes the wasting of resources.
Six, lot of V OD interactive instruction is arranged on the network, the waste network bandwidth.
Prior art two, the program request gateway that the tame VOD of top box integrated a manufacturer provides, the program request gateway of this VOD manufacturer is in the VOD of integrated other producer of front-end server agreement.This scheme digital TV terminal only needs the program request gateway of integrated one tame VOD manufacturer, by the program request gateway of the VOD producer that is integrated in the VOD of integrated other producer of front-end server agreement.
See also accompanying drawing 2, be the program request flow chart of the integrated one tame VOD system on-demand gateway of digital TV terminal in the prior art two.
Digital TV terminal and integrated VOD producer program request gateway in digital TV terminal are represented the client of RTSP, other VOD system representation RTSP server end jointly.
Further, the program request gateway of integrated arbitrary VOD producer in the digital TV terminal, and this program request gateway is in the VOD of integrated other producer of front-end server agreement; The VOD system is meant the VOD system that other producer of removing the VOD system that program request gateway producer is provided provides.
Step 201: digital TV terminal sends the DESCRIBE request to the program request gateway that is integrated in its inner VOD system, the DESCRIBE request of described program request gateway after other VOD system forwards is adaptive, described program request gateway respond the DESCRIBE request of other VOD system and the DESCRIBE request are transmitted to digital TV terminal.
Step 202: digital TV terminal sends the SETUP request to the program request gateway that is integrated in its inner VOD system, the SETUP request of described program request gateway after other VOD system forwards is adaptive, described program request gateway respond the SETUP request of other VOD system and the SETUP request are transmitted to digital TV terminal.
Step 203: digital TV terminal sends the PLAY request to the program request gateway that is integrated in its inner VOD system, the PLAY request of described program request gateway after other VOD system forwards is adaptive, described program request gateway respond the PLAY request of other VOD system and the PLAY request are transmitted to digital TV terminal.
This scheme has solved the VOD integration problem of digital TV terminal producer to a certain extent, has reduced the integrated difficulty of digital TV terminal manufacturer.Under the situation of the digital TV terminal of not upgrading, also can increase new VOD producer simultaneously, farthest share the VS server of each producer.But there is following shortcoming in this scheme:
One, digital TV terminal producer still wants the VOD agreement of integrated a certain family;
Two, the integrated difficulty of agreement does not change, and digital TV terminal producer still will spend ample resources and VOD producer to carry out integrated;
Three, still have lot of V OD interactive instruction on the network, the waste network bandwidth;
In sum, prior art can't reduce the difficulty of the integrated VOD agreement of digital TV terminal, also can't eliminate the problem in lot of V OD interactive instruction on the network, waste broadband.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of play-on-demand program request sending method and system, effectively solves the integrated VOD agreement of digital TV terminal needs in the prior art, has the problem in lot of V OD interactive instruction waste broadband on the network.
For solving technical problem of the present invention, the present invention discloses a kind of play-on-demand program request sending method, comprises the steps:
Digital television system sends at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system;
Independent program request gateway is changed described play-on-demand program request according to default with this VOD system corresponding protocols;
Independent program request gateway sends play-on-demand program request after the described conversion to described VOD system
For solving technical problem of the present invention, the present invention also discloses a kind of play-on-demand program request transmitting system, comprising:
Digital television system is used for sending at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system;
Independent program request gateway is used for changing described play-on-demand program request according to default with this VOD system corresponding protocols, and the play-on-demand program request after the described conversion of sending is to described VOD system.
Compared with prior art, the present invention has following beneficial effect: digital television system does not need integrated VOD agreement, under the situation that digital television system is not upgraded, can increase the VOD system flexibly, has increased the stability of operator's operating system.
Description of drawings
Fig. 1 is the program request flow chart of the interior integrated how tame VOD agreement of digital TV terminal in the prior art one;
Fig. 2 is the program request flow chart of digital TV terminal integrated one tame program request gateway in the prior art two;
Fig. 3 is the program request flow chart of integrated how tame VOD agreement one embodiment of independence program request gateway of the present invention;
Fig. 4 is the structural representation of a kind of play-on-demand program request of the present invention transmitting system one embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The invention provides a kind of play-on-demand program request sending method, comprise the steps: that digital television system sends at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system; Independent program request gateway is changed described play-on-demand program request according to default with this VOD system corresponding protocols; Independent program request gateway sends play-on-demand program request after the described conversion to described VOD system.Digital television system comprises: the play-on-demand program transmitting element, and the play-on-demand program transmitting element that is used for digital television system sends the play-on-demand program request to the IPG unit; The IPG unit is used for digital television system described play-on-demand program request is transmitted to independent program request gateway.Concrete, initiate the play-on-demand program request by the user by IPG (Interactive Program Guide, interactive program guide) unit and realize interactive video service.The central idea of this programme is: adopt the browsing apparatus of supporting HTTP GET order and/or AJAX order (asynchronous request) in the IPG unit program request page of digital TV front-end, user's play-on-demand program is transmitted to the independent program request gateway of a plurality of VOD of connection system, by the independent program request gateway that connects a plurality of VOD system based on the RTSP agreement, digital TV terminal and program request gateway RTSP reciprocal process in the simulation prior art, initiate to communicate by letter with the RTSP of backstage VOD system, realize plug-flow, then the channel resource distribution result is returned the IPG unit of digital TV front-end, then, playing programs is finished according to the described media player that returns corresponding programme information call number television terminal in the IPG unit of digital TV front-end.
Seeing also Fig. 3, is the program request flow chart of integrated how tame VOD agreement one embodiment of independence program request gateway of the present invention.
The play-on-demand program transmitting element of digital TV terminal sends the play-on-demand program request to the IPG unit of digital TV front-end; The IPG unit of digital TV front-end is transmitted to independent program request gateway with described play-on-demand program request.
S301: digital TV terminal sends the play-on-demand program request to digital TV front-end.
Concrete, the user sends the play-on-demand program request by the play-on-demand program transmitting element of digital TV terminal to the IPG unit of digital TV front-end.Further, the play-on-demand program transmitting element of digital TV terminal sends the play-on-demand program request to the IPG unit based on the digital TV front-end of browsing apparatus pattern.
The IPG unit of digital TV front-end provides colourful application service channel for the user, be platform and the window that the user obtains to look audio content and other services, offer the user content introduction and the classified information of video-audio program the most intuitively, help the user to fully understand audio-video frequency content and other service, allow the video frequency program that the user can select, program request oneself is liked.The IPG unit of digital TV front-end is optimized at TV specially, and the user only need use the remote control portable terminal (remote controller) of digital TV terminal configuration can carry out program selection, program request, and is very convenient.
In the embodiment of the invention, the technology of the IPG unit of digital TV front-end realizes reaching at digital TV terminal, such as STB (Set Top Box, set-top box) form of expression in is based on the pattern of browsing apparatus, this kind pattern adopts WEB (network, the Internet, be hypertext (hypertext), hypermedia (hypermedia), HTTP(Hypertext Transport Protocol) etc.) technology, in fact the IPG unit of digital TV front-end is exactly a WEB server, adopt HTML (Hyper Text Mark-up Language, HTML or HTML) and JSP (Java Server Pages, dynamic web page) art designs and edit page carry out the renewal of content automatically according to background data base.Use Content Management System that the Page Template style is managed and adjusts, the channel that represents is carried out layout, and content is carried out Classification Management.Digital TV terminal does not need upgrading, does not need to install proprietary software, and the IPG unit that only needs to be connected to the corresponding digital television headend by browsing apparatus just can carry out webpage representation, and successively carries out the selection of related content.
S302: the IPG unit of digital TV front-end is transmitted to independent program request gateway with the play-on-demand program request.
Concrete, the IPG unit of digital TV front-end adopts the program request page that the play-on-demand program request is transmitted to independent program request gateway, and described independent program request gateway connects a VOD system at least.
Further, the IPG unit of described digital TV front-end adopts and supports that (HTTP GET is a kind of technology of creating interaction network page, refers to the request resource order at this for HTTP GET order and/or AJAX order; AJAX is not an abbreviation, but the noun of creating by Jesse James Gaiiett, be meant a kind of webpage development technology that interaction network page is used of creating, AJAX is not a kind of new programming language, but a kind of be used to create better faster and interactivity is stronger, the technology of web application refers to the order of request resource at this) the program request page play-on-demand program request is transmitted to independent program request gateway.The how tame VOD of independent program request gateway association system, such as, a VOD system, the 2nd VOD system, the 3rd VOD system, the nVOD system, wherein, n is more than or equal to 1.
S303: independent program request gateway is changed described play-on-demand program request according to default with this VOD system corresponding protocols;
Independent program request gateway has a plurality of serve ports of supporting different VOD agreements, if independent program request gateway and the VOD of n family system interaction just are provided with n the serve port corresponding with the VOD system on the so independent program request gateway.
Independent program request gateway program receiving order request, distribute frequency resource and VOD manufacturer server resource according to the load balancing strategy, the agreement of the adaptive VOD system requirements that is assigned to of independent program request gateway, promptly by the serve port input play-on-demand program request corresponding with the agreement of VOD system requirements, the described serve port corresponding with the agreement of VOD system requirements assembled the VOD system that sends to the play-on-demand program request according to the agreement of VOD system requirements, and notice VOD system carries out plug-flow.Simultaneously, independent program request gateway returns to digital television system with the frequency resource, and digital television system is carried out frequency locking and separated stream.
Independent program request gateway is changed described play-on-demand program request according to default with a VOD system corresponding protocols, and the play-on-demand program request after the described conversion is sent to a VOD system, realizes the related of independent program request gateway and a VOD system.Concrete, if the play-on-demand program request correspondence that digital television system is sent is a VOD system, so independent program request gateway is discerned this play-on-demand program request, and this play-on-demand program request is sent to a VOD system by first information passage.In like manner, if the play-on-demand program request correspondence that digital television system is sent is the 2nd VOD system, so independent program request gateway is discerned this play-on-demand program request, and this play-on-demand program request is sent to the 2nd VOD system by second information channel.If the play-on-demand program request correspondence that digital television system is sent is the 3rd VOD system, so independent program request gateway is discerned this play-on-demand program request, and this play-on-demand program request is sent to the 3rd VOD system by the 3rd information channel.If the play-on-demand program request correspondence that digital television system is sent is n VOD system, so independent program request gateway is discerned this play-on-demand program request, and this play-on-demand program request is sent to n VOD system by n information channel.The setting of independent program request gateway and VOD system corresponding serve port are realized the related of independent program request gateway and how tame VOD system.
S304: independent program request gateway is initiated the RTSP interactive communication with the VOD system.
An independent program request gateway and a VOD system carry out the RTSP interactive communication: independent program request gateway sends media description information initialization request, a VOD system responses media description information initialization request to a VOD system; Independent program request gateway is provided with request, a VOD system responses session attribute and transmission mode request to VOD system transmission session attribute and transmission mode; Independent program request gateway sends playing programs request, a VOD system responses playing programs request to a VOD system.In like manner, independent program request gateway also can be realized the RTSP interactive communication with the 2nd VOD system, with the RTSP interactive communication of the 3rd VOD system, with the RTSP interactive communication of n VOD system.
Digital television system is after the independent program request gateway that connects a plurality of VOD system sends play-on-demand program request at a VOD system wherein, and independent program request gateway and how tame VOD system connect, and it is mutual that program request gateway and VOD system carry out RTSP.
Concrete, at first, independent program request gateway sends the DESCRIBE request to the VOD system, and promptly independent program request gateway requires to obtain the media initialize descriptor that the VOD system provides; VOD system responses DESCRIBE request, promptly the VOD system responds the media initialize descriptor of independent program request gateway requests.Secondly, independent program request gateway sends the SETUP request to the VOD system, and promptly independent program request gateway is provided with session attribute and transmission mode to the VOD system request, reminds the VOD system to set up session; VOD system responses SETUP request, i.e. session is set up in VOD system responses SETUP request, returns Session ID and session related information.Wherein, independent program request gateway sends the SETUP request to the VOD system, by the agreement of the adaptive VOD systems compliant of independent program request gateway, thus the difference of realization shielding different manufacturers VOD system.At last, independent program request gateway sends the PLAY request to the VOD system, and promptly independent program request gateway sends the order that request is play to the VOD system; VOD system responses PLAY request, promptly the VOD system responds described information requested.
Independent program request gateway is for the program request net that is integrated in digital TV terminal inside in the prior art, such as the program request gateway of digital TV terminal in the prior art two with regard to integrated one tame VOD system.Independent program request gateway described in the present invention does not need to be integrated in the digital TV terminal.
S305: independent program request gateway returns corresponding programme information to the IPG unit of digital TV front-end;
Concrete, independent program request gateway and VOD system carry out RTSP mutual after, the URL (Uniform/Universal Resource Locator, URL(uniform resource locator) is also referred to as web page address) that VOD system assignment program request passage and passback are intended playing gives independent program request gateway.Wherein, URL is meant the URL of the plan broadcast of receiving the IPG unit of digital TV front-end, and described URL specifically comprises frequency and/or program ID (Identity, identify label).After the URL that VOD system assignment program request passage and passback intend playing gave independent program request gateway, the URL that independent program request gateway intends playing with the passback of VOD system was forwarded to the IPG unit of digital TV front-end.
S306: the media player of the IPG cell call digital TV terminal of digital TV front-end.
Concrete, after the URL that independent program request gateway intends playing with the passback of VOD system is transmitted to the IPG unit of digital TV front-end, the media player of the IPG cell call digital TV terminal of digital TV front-end, the programme information of the described URL association of the media renderer plays of digital TV terminal.
The embodiment of the invention is provided with the agreement of the VOD system of independent program request gateway and different manufacturers and carries out integrated, digital TV terminal need not the agreement of integrated any one tame VOD system, the program request gateway that does not also need the integrated in advance a certain VOD of family of digital TV terminal, the VOD system that integrated other families of program request gateway are arranged again, but undertaken integrated, adaptive by independent program request gateway.Adopt this kind scheme, do not do at digital TV terminal under the situation of any change, can increase new VOD producer at any time, also can share the resource of how tame VS (Video Server, video server).In addition, adopt this kind technical scheme, digital TV terminal only need have media play ability and communication capacity, has thoroughly eliminated the difficulty of the integrated how tame VOD agreement of digital TV terminal.In a sowing time, the play-on-demand program transmitting element of digital TV terminal is initiated the program request order by browser to the IPG unit of digital TV front-end, and independent program request gateway forwards has reduced network traffics.
Seeing also Fig. 4, is the structural representation of a kind of play-on-demand program request of the present invention transmitting system one embodiment.
The transmitting system of a kind of play-on-demand program request that the embodiment of the invention provides comprises: digital television system is used for sending at the wherein play-on-demand program request of a VOD system to the independent program request gateway 43 of a plurality of VOD of connection system 44; Independent program request gateway is used for changing described play-on-demand program request according to default with this VOD system corresponding protocols, and the play-on-demand program request after the described conversion of sending is to described VOD system.Digital television system further comprises: the play-on-demand program transmitting element 421 of digital TV terminal 42 and the IPG unit 411 of digital TV front-end 41, described play-on-demand program transmitting element 421, the play-on-demand program transmitting element 421 that is used for digital TV terminal 42 sends the play-on-demand program request to the IPG unit 411 of digital TV front-end 41; The IPG unit 411 of described digital TV front-end 41 is used for digital television system described play-on-demand program request is transmitted to independent program request gateway 43.
Described digital TV terminal 42 comprises but does not limit set-top box, digital TV integrated machine, PC (Personal Computer, personal computer), PDA (Personal Digital Assistant, palmtop PC) etc. to have the terminal of receiving digital television function.
Further, the play-on-demand program transmitting element 421 of described digital TV terminal 42 sends the play-on-demand program requests to the IPG unit 411 based on the digital TV front-end 41 of browsing apparatus pattern.
Further, described digital TV terminal 42 further comprises: 422 media play unit: the program video that is used for the described program request of media renderer plays of digital TV terminal 42.
Further, the IPG unit 411 of digital TV front-end 41 is used for the play-on-demand program request is transmitted to independent program request gateway 43, and the IPG unit 411 of described digital TV front-end 41 is based on the IPG unit 411 of the digital TV front-end 41 of browsing apparatus pattern.
Further, the IPG unit 411 of described digital TV front-end 41 is to adopt the program request page that the play-on-demand program request is transmitted to independent program request gateway 43.
Further, the IPG unit 411 of described browsing apparatus mode digital television headend 41 is based on the IPG unit 411 of digital TV front-end 41 that the program request page of supporting HTTP GET order and/or AJAX order is transmitted to the play-on-demand program request browsing apparatus pattern of independent program request gateway 43.
Further, the IPG unit 411 of described digital TV front-end 41 further comprises: 4111 player call units are used for the media player of digital TV front-end call number television terminal.
Described independent program request gateway 43 further comprises: media description information initialization request unit, be used for agreement based on RTSP, and send the media description information initialization request to the VOD system; Session attribute and transmission mode are provided with request unit, are used for the agreement based on RTSP, to VOD system transmission session attribute and transmission mode request are set; The playing programs request unit is used for the agreement based on RTSP, sends the playing programs request to the VOD system.Concrete, DESCRIBE request unit 431 is used for the agreement based on RTSP, sends the DESCRIBE request to the VOD system; SETUP request unit 432 is used for the agreement based on RTSP, sends the SETUP request to the VOD system; PLAY request unit 433 is used for the agreement based on RTSP, sends the PLAY request to the VOD system.Then, VOD system assignment program request passage and passback are intended the URL of broadcast to independent program request gateway 43; Described independent program request gateway 43 further comprises: program URL returns the unit, is used for the IPG unit 411 that independent program request gateway 43 is forwarded to the URL of VOD system passback plan broadcast digital TV front-end 41.Further, described VOD system also comprises: DESCRIBE response unit 441 is used for the agreement based on RTSP, the DESCRIBE request that response program request gateway sends; SETUP response unit 442 is used for the agreement based on RTSP, the SETUP request that response program request gateway sends; PLAY response unit 443 is used for the agreement based on RTSP, the PLAY request that response program request gateway sends.
The present invention has following beneficial effect: digital TV terminal does not need integrated VOD agreement, under the situation that digital TV terminal is not upgraded, can increase the VOD system flexibly, has increased the stability of operation system.
More than lift preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all; any modification of being done, be equal to replacement, improvement etc.; all should be included within protection scope of the present invention, the interest field that the present invention advocated should be as the criterion so that the patent application scope is described, but not only limits to the foregoing description.
Claims (10)
1. a play-on-demand program request sending method is characterized in that, comprises the steps:
Digital television system sends at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system;
Independent program request gateway is changed described play-on-demand program request according to default with this VOD system corresponding protocols;
Independent program request gateway sends play-on-demand program request after the described conversion to described VOD system.
2. method according to claim 1 is characterized in that, described digital television system sends at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system, is specially:
The play-on-demand program transmitting element of digital TV terminal sends the play-on-demand program request to the IPG unit of digital TV front-end;
The IPG unit of digital TV front-end is transmitted to independent program request gateway with described play-on-demand program request.
3. method according to claim 1 is characterized in that, described independent program request gateway sends play-on-demand program request after the described conversion after the described VOD system, and also comprise: independent program request gateway and VOD system carry out the step of RTSP interactive communication, comprising:
Independent program request gateway sends media description information initialization request, VOD system responses media description information initialization request to the VOD system;
Independent program request gateway is provided with request, VOD system responses session attribute and transmission mode request to VOD system transmission session attribute and transmission mode;
Independent program request gateway sends playing programs request, the request of VOD system responses playing programs to the VOD system.
4. method according to claim 3 is characterized in that, described independent program request gateway and VOD system carry out also comprising after the RTSP interactive communication:
Independent program request gateway returns corresponding programme information to the IPG unit of digital TV front-end;
The IPG unit of digital TV front-end is according to the described media player that returns corresponding programme information call number television terminal.
5. method according to claim 4 is characterized in that, described independent program request gateway returns corresponding programme information to the IPG unit of digital TV front-end, is specially:
The URL that independent program request gateway is play the plan of VOD system passback is forwarded to the IPG unit of digital TV front-end.
6. a play-on-demand program request transmitting system is characterized in that, comprising:
Digital television system is used for sending at the wherein play-on-demand program request of a VOD system to the independent program request gateway of a plurality of VOD of connection system;
Independent program request gateway is used for changing described play-on-demand program request according to default with this VOD system corresponding protocols, and the play-on-demand program request after the described conversion of sending is to described VOD system.
7. system according to claim 6 is characterized in that, described digital television system further comprises:
The play-on-demand program transmitting element, the play-on-demand program transmitting element that is used for digital TV terminal sends the play-on-demand program request to the IPG unit;
The IPG unit is used for digital TV front-end described play-on-demand program request is transmitted to independent program request gateway.
8. system according to claim 7 is characterized in that,
Described independent program request gateway further comprises: programme information returns the unit, is used for independent program request gateway and returns corresponding programme information to the IPG unit of digital TV front-end.
Described IPG unit further comprises: the player call unit, the IPG unit that is used for digital TV front-end is according to the described media player that returns corresponding programme information call number television terminal.
9. system according to claim 8 is characterized in that described programme information returns the unit, is used for independent program request gateway and returns corresponding programme information to the IPG unit of digital TV front-end, is specially:
Program URL returns the unit, is used for the IPG unit that independent program request gateway is forwarded to the URL of the plan broadcast of VOD system passback digital TV front-end.
10. system according to claim 9 is characterized in that, described independent program request gateway further comprises:
Media description information initialization request unit is used for the agreement based on RTSP, sends the media description information initialization request to the VOD system;
Session attribute and transmission mode are provided with request unit, are used for the agreement based on RTSP, to VOD system transmission session attribute and transmission mode request are set;
The playing programs request unit is used for the agreement based on RTSP, sends the playing programs request to the VOD system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103188575A (en) * | 2011-12-28 | 2013-07-03 | 东方有线网络有限公司 | Method for realizing switched digital video system based on real time streaming protocol (RTSP) |
| CN104378663A (en) * | 2014-10-27 | 2015-02-25 | 华数传媒网络有限公司 | Narrow bandwidth VOD system and method |
| CN104378663B (en) * | 2014-10-27 | 2019-01-15 | 华数传媒网络有限公司 | Narrow bandwidth VOD VOD system and method |
| CN109918602A (en) * | 2019-02-26 | 2019-06-21 | 南威软件股份有限公司 | A kind of web data preloading method and system |
| CN110324725A (en) * | 2019-07-03 | 2019-10-11 | 福建广电网络集团股份有限公司 | A kind of interactive television platform agreement transferring system |
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