CN101193256B - Method and device for getting media content by using uniform EPG - Google Patents
Method and device for getting media content by using uniform EPG Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for obtaining media content by using a unified electronic program guide (EPG) and a device thereof. The device comprises inter-connected units for generating EPG and obtaining position information and a media playing module. By adopting the method and the device provided by the embodiment of the invention, a corresponding relationship is established between description information of broadcasting programs in a digital TV and the description information of broadband programs in an IPTV (internet protocol TV); an EPG page, including the corresponding description information of the broadcasting programs in the digital TV and the corresponding description information of the broadband programs in the IPTV, is generated; the position information and the media content, to which the position information points, is obtained through the description information of the programs when the programs in the EPG page are selected. The embodiment of the invention ensures that a user terminal can, according to the unified EPG, obtain the media content including the broadcasting program content in the digital TV and the broadband program content in the IPTV.
Description
Technical field
The present invention relates to Digital Television and internet protocol TV (IPTV) field, be specifically related to a kind of method and apparatus that utilizes unified Electronic Program Guide (EPG) to obtain media content.
Background technology
At present, Digital Television is occupied very big market because of its superiority bandwidth, and IPTV then occupies crucial status equally because of its stronger interaction capabilities; Though IPTV has more outstanding interactivity under present network environment, because network environment, Digital Television and IPTV will coexist in the quite a long time.
At present, home network terminal (HNED) can only receive from the digital television broadcasting program content of digital television broadcasting service system or from the broadband programme content of IPTV broadband service system relatively independently, and the neither one system can provide digital television broadcasting program content, the such media content of IPTV broadband programme content for HNED is unified.In actual applications, the principle that IPTV broadband service system provides IPTV broadband programme content as shown in Figure 1, the principle that the digital television broadcasting service system provides the digital television broadcasting program content is as shown in Figure 2.
Among Fig. 1, browser among the HNED can obtain the EPG page from web page server, and obtain corresponding Session Description Protocol (SDP) descriptor from web page server, and this SDP descriptor is passed to the streaming media playing module according to user's selected program on the EPG page; The streaming media playing module is connected to streaming media server according to the SDP descriptor of receiving, receives and play the IPTV broadband programme content from streaming media server.Principle shown in Figure 1 can only realize the displaying of IPTV broadband programme content, does not support the displaying of digital television broadcasting program content.
Among Fig. 2, HNED obtains information on services (SI) by cable from the digital television broadcasting server, generate the EPG page and demonstration according to the SI that obtains, the pairing SI information of selecting on the EPG page according to the user of program is obtained the frequency point information and the data flow media information of corresponding channel again, and then receives from the digital television broadcasting program content of broadcasting server and show according to the frequency point information of obtaining and data flow media information.Principle shown in Figure 2 can only realize the displaying of digital television broadcasting program content, does not support the displaying of IPTV broadband programme content; And, if realize time-shifting function, and need be by the personal digital video recorder, this will obviously increase the cost of HNED.
Summary of the invention
In view of this, the main purpose of the embodiment of the invention is to provide a kind of method of utilizing unified EPG to obtain media content, to guarantee that user terminal can obtain digital television broadcasting program content, the such media content of IPTV broadband programme content according to unified EPG.
Another purpose of the embodiment of the invention is to provide a kind of device that utilizes unified EPG to obtain media content, to guarantee that user terminal can obtain digital television broadcasting program content, the such media content of IPTV broadband programme content according to unified EPG.
For achieving the above object, the technical scheme of the embodiment of the invention is achieved in that
The embodiment of the invention discloses a kind of method of utilizing unified EPG to obtain media content, this method may further comprise the steps:
A. set up corresponding relation for digital television broadcasting program descriptor and IPTV broadband program description, and generation comprises the EPG page of corresponding digital television broadcasting program descriptor and IPTV broadband program description, wherein, the described corresponding relation of setting up is: the broadcast program description information of digital television broadcasting program and the broadband program description of IPTV broadband program are stored in passing through in the related list cell of unified content identification of program description table, or, set up digital television broadcasting program according to unified content identification, corresponding relation between the program description of IPTV broadband program;
B. when having program selected in the EPG page, obtain positional information, obtain positional information media content pointed by program description.
The embodiment of the invention also discloses a kind of device that utilizes unified EPG to obtain media content, this device comprises continuous EPG generation and location information acquiring unit, media play module;
Wherein, EPG generates and location information acquiring unit, be used to digital television broadcasting program descriptor and IPTV broadband program description to set up corresponding relation, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description; And the descriptor that program is arranged in the EPG page is when selected, provide positional information in this program description to the media play module, wherein, the described corresponding relation of setting up is: the broadcast program description information of digital television broadcasting program and the broadband program description of IPTV broadband program are stored in passing through in the related list cell of unified content identification of program description table, or, set up the corresponding relation between the program description of digital television broadcasting program, IPTV broadband program according to unified content identification;
The media play module is used to receive the positional information media content pointed from EPG generation and location information acquiring unit.
Compared with prior art, the unified EPG that utilizes that the embodiment of the invention provided obtains the method and apparatus of media content, all makes user terminal can obtain digital television broadcasting program content, the such media content of IPTV broadband programme content according to unified EPG.
Description of drawings
Fig. 1 provides IPTV broadband programme content schematic diagram for the IPTV broadband service system of prior art;
Fig. 2 provides digital television broadcasting program content schematic diagram for the digital television broadcasting service system of prior art;
Fig. 3 obtains system for the media content of a preferred embodiment of the present invention;
Fig. 4 is the media content flow process figure that obtains shown in Figure 3;
Fig. 5 obtains system for the media content of another preferred embodiment of the present invention;
Fig. 6 is the media content flow process figure that obtains shown in Figure 5;
Fig. 7 obtains media content flow process sketch for further embodiment of this invention.
Embodiment
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
The method of utilizing unified EPG to obtain media content that the embodiment of the invention provided comprises: for digital television broadcasting program descriptor and IPTV broadband program description are set up corresponding relation, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description; When having program selected in the EPG page, obtain positional information by program description, obtain positional information media content pointed.
The device that utilizes unified EPG to obtain media content that the embodiment of the invention provided comprises: EPG generation that links to each other and location information acquiring unit, media play module; Wherein, EPG generates and location information acquiring unit, be used to digital television broadcasting program descriptor and IPTV broadband program description to set up corresponding relation, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description; And the descriptor that program is arranged in the EPG page is when selected, provides positional information in this program description to the media play module; The media play module is used to receive the positional information media content pointed from EPG generation and location information acquiring unit.
Referring to Fig. 3, Fig. 3 obtains system for the media content of a preferred embodiment of the present invention.Among Fig. 3, digital television broadcasting server 310, IPTV broadband server 330 link to each other with media play module 342 among the HNED 340 respectively, and 320 of EPG servers link to each other with media play module 342 by the browsers 341 among the HNED 340; And, the digital television broadcasting server 310, EPG server 320, IPTV broadband server 330 that is arranged in network side all with HNED 340 by data transmit-receive module (owing to be the common device of prior art, therefore not shown among Fig. 3) link to each other, data transmit-receive module is used for carrying out the data transmit-receive operation between network side and HNED 340.
In actual applications, store all program-related information of digital television broadcasting server 310 and IPTV broadband server 330 in the EPG server 320, as: the programm name of program, program description and program chaining information etc., and can generate unified EPG according to these program-related information.
Wherein, program chaining information is meant the specific descriptions information that is used to be linked to this program, and the content of link can be obtained from the chained address that links described descriptor, also can directly embedded detailed program description.
Program description comprises: program category (program is merged in digital television broadcasting program, IPTV broadband program or digital television broadcasting/IPTV broadband), program stream information etc.Wherein, digital television broadcasting/IPTV broadband is merged program and is meant that this program not only can obtain from the digital television broadcasting passage, also can obtain from the IPTV broadband channel simultaneously.Program stream information is used for describing according to program category the media content relevant information of program, generally comprises media type information, also comprises the clean culture/multicast address of streaming media server address and/or media content sources at the program stream information of IPTV broadband program; The physical transfer net information such as tuner parameters, frequency, symbol rate that then comprise program at the program stream information of digital television broadcasting program, and the sign of the elementary stream in the program.The information that program comprises two aspects of above-mentioned broadcasting and broadband is merged in broadcasting/broadband.Described streaming media server and media content sources all are meant IPTV broadband server 330 usually, and the described physical transfer Chang Ze of Netcom is meant the network that is used for connecting digital television broadcasting server 310.
Need to prove: in order to generate unified EPG, EPG server 320 need be set up corresponding relation between the program description of the program that digital television broadcasting server 310, IPTV broadband server 330 are provided; And, establish the pairing digital television broadcasting program of program description and the normally identical program of IPTV broadband program of corresponding relation, have identical programme content.Certainly, in actual applications, the pairing digital television broadcasting program of program description and the IPTV broadband program that establish corresponding relation can be mutually different programs also, have programme content inequality.
The program description of the program that is provided for digital television broadcasting server 310, IPTV broadband server 330 has been set up after the corresponding relation, EPG server 320 adopts general form (as XML, HTML, XHTML) that the program description of having set up corresponding relation is described, and finally generates the unified EPG page.As seen, from the unified EPG page, both can find the program description of the digital television broadcasting program content that digital television broadcasting server 310 provided, also can find the program description of the IPTV broadband programme content that IPTV broadband server 330 provided; And, also have corresponding relation between these two kinds of program description.
In fact, the mode of setting up of described corresponding relation has a lot, as: the program description common storage of the program that digital television broadcasting server 310, IPTV broadband server 330 are provided is in the list cell that is associated of program description table.
Generated after the unified EPG page, EPG server 320 sends to browser 341 with the EPG page that generates, and resolves and demonstrate the EPG page of receiving by browser 341.When having received the selected instruction of certain program in the EPG page because of user's selection, browser 341 is according to the address information in the link information of selected program, obtain this address information program description pointed from EPG server 320, perhaps directly obtain the program description of this program from program chaining information.Afterwards, browser 341 sends to media play module 342 with the program description of obtaining, and is obtained and is shown the program description media content of receiving pointed by media play module 342.
Particularly, when selected program is IPTV broadband program, comprise in the program description of this IPTV broadband program that browser 341 is obtained: the streaming media server address of IPTV broadband program and/or the clean culture/multicast address of media content sources; Therefore, media play module 342 just can receive and show the IPTV broadband programme content from described streaming media server address, perhaps by described clean culture/multicast address reception and the demonstration IPTV broadband programme content from described media content sources.
When selected program is digital television broadcasting program, comprise in the program description of this digital television broadcasting program that browser 341 obtained: physical transfer net information such as tuner parameters, frequency, symbol rate, and the sign of the elementary stream in the program; Therefore, media play module 342 just can be carried out frequency modulation according to described physical transfer net information, and has the digital television broadcasting program content that described elementary stream identifies in the frequency reception and the demonstration that are tuned to.
When media play module 342 received and shows the digital television broadcasting program content, browser 341 can also carry out time shift control to the digital television broadcasting program content that receives according to the instruction of receiving.The process of carrying out time shift control is generally: browser 341 receives that (this instruction comes from the applied remote controller of user usually in the time shift instruction of carrying out time shift, send fast forwarding and fast rewinding order etc. as user's application remoting device to browser 341), the program description of being obtained during according to the selection program, can know the broadband program description of the pairing IPTV of this digital television broadcasting program broadband program, and the IPTV broadband program description obtained and the described time shift instruction of receiving sent to media play module 342, receive program description IPTV broadband programme content pointed in described IPTV broadband by media play module 342 according to the time location that will move in the described time shift instruction.
Particularly, the method that browser 341 obtains the program description of the pairing IPTV of the current digital television broadcasting program that is just receiving broadband program has multiple, as: browser 341 reads the IPTV broadband program description of the pairing IPTV of the digital television broadcasting program descriptor broadband program of the current digital television broadcasting program that is just receiving according to digital television broadcasting program descriptor that comprises in the EPG page from EPG server 320 and the corresponding relation between the program description of IPTV broadband.Certainly, in actual applications, EPG server 320 may not send to browser 341 with the program description with corresponding relation yet, and browser 341 needs to send to EPG server 320 the time shift instruction of the digital television broadcasting program descriptor that comprises the current digital television broadcasting program that is just receiving in this case; EPG server 320 obtains the pairing IPTV of digital television broadcasting program descriptor broadband program description wherein and sends to browser 341 when receiving this time shift instruction.
Have again, media play module 342 also has multiple according to the method that described time location receives described IPTV broadband program description IPTV broadband programme content pointed, as: when the IPTV broadband programme content that will receive is when providing in the multicast mode, media play module 342 can be known multicast address in the IPTV broadband program description of receiving and the time location that will move to, and adding the multicast group that has been offset described time location, reception and demonstration are from the IPTV broadband programme content of this multicast group.When the IPTV broadband programme content that will receive is when providing with mode of unicast, 342 of media play modules can send the time shift program that comprise described IPTV broadband program description and time location to IPTV broadband server 330 and receive request; When receiving from IPTV broadband program description in the time shift program reception request of media play module 342 and time location, IPTV broadband server 330 will send to media play module 342 based on the pairing IPTV broadband programme content that has been offset described time location of described IPTV broadband program description, by the IPTV broadband programme content that media play module 342 receives and demonstration IPTV broadband server 330 is sent.
In the whole process of carrying out above-mentioned time shift control, browser 341 can notify media play module 342 to stop the receiving digital television broadcast programme content at any time; When the notice that receives from browser 341, media play module 342 just stops the receiving digital television broadcast programme content.
Receive in the process of IPTV broadband programme contents in media play module 342, browser 341 can be used the IPTV broadband programme content that prior art receives by 342 pairs of media play modules and carry out time shift control.And, media play module 342 also may no longer receive IPTV broadband programme content then the receiving digital television broadcast programme content, as: browser 341 is received the switching command of receiving digital television broadcast programme content, the switching sign that is used to represent switch to digital television broadcasting program be might only comprise in this switching command, the program names, digital television broadcasting program descriptor of the digital television broadcasting program that will switch to etc. also might be comprised by IPTV broadband program.
When only comprising described switching sign in the described switching command, browser 341 obtains the digital television broadcasting program descriptor of the current pairing digital television broadcasting program of IPTV broadband program that is just receiving, and the digital television broadcasting program descriptor of obtaining sent to media play module 342, receive described digital television broadcasting program descriptors digital television broadcasting program content pointed by media play module 342.When comprising described program names, digital television broadcasting program descriptor in the described switching command, browser 341 can obtain the digital television broadcasting program descriptor of the digital television broadcasting program with this program names, the digital television broadcasting program descriptor that perhaps directly reads in the switching command to be comprised; Afterwards, browser 341 sends to media play module 342 with the digital television broadcasting program descriptor that obtains, and receives described digital television broadcasting program descriptor digital television broadcasting program content pointed by media play module 342.
As seen, no matter the receiving digital television broadcast programme content still receives IPTV broadband programme content, and what media play module 342 really needed utilization is the information that can show the media content position in the program description, and obtains media content from the relevant position.Realized the generation of the unified EPG page and the function that program location information is obtained because EPG server 320 and browser 341 cooperate, thereby EPG server 320 and the browser 341 unified EPG that are called have been generated and location information acquiring unit.In actual applications, the information that shows the media content position can be called positional information.
The operating process that system shown in Figure 3 is obtained media content totally as shown in Figure 4.Referring to Fig. 4, Fig. 4 is the flow chart that system shown in Figure 3 obtains media content, and this flow process may further comprise the steps:
Step 401 is to step 403: browser is to the unified EPG page of EPG server requests; The EPG server generates the unified EPG page and sends to browser, the EPG page that browser-presented goes out to receive.
Step 404 is to step 406: browser sends the request of selecting program according to the selected instruction of certain program of receiving to the EPG server; EPG searches the program description of selected described program, and the program description that finds is sent to browser, will send to the media play module from the program description of EPG server by browser.
Certainly, browser also can be searched selected described program in the EPG page of self program description, and the program description that finds sent to the media play module.
Step 407 is to step 409: the media play module is according to carrying out frequency modulation from the program description of browser, and then normally receives and display the digital television broadcasting program content from the digital television broadcasting server.
Step 410: the media play module is known medium control operations such as will carrying out time shift control.Particularly, can be that notice media play module will be carried out the medium control operation after browser was received the time shift instruction of carrying out time shift; Also can be that the media play module is determined to carry out the medium control operation according to self being provided with.
Step 411 is to step 412: the media play module sends media control request to the IPTV broadband server, by the IPTV broadband server will the time IPTV broadband program that moves on to medium such as IPTV broadband program description control result send to the media play module.
The aforesaid operations that the media play module is carried out can be undertaken by browser, is perhaps directly finished by browser.
Step 413 is to step 415: the media play module stops the receiving digital television broadcast programme content, receives IPTV broadband programme content and shows according to the medium control result from the IPTV broadband server.
Step 416 is to step 418: the media play module is according to from the switching command of browser or self be provided with, determine and to transfer FM reception digital television broadcasting program content to by receiving IPTV broadband program, and then the connection between disconnection and the streaming media server, no longer receive IPTV broadband programme content but FM reception digital television broadcasting program content.
With the corresponding practical application scene of Fig. 3, Fig. 4 in, user A can carry out time shift operation when watching digital television broadcasting program, can enter into broadband mode when carrying out time shift operation with the pairing IPTV of the digital television broadcasting program broadband program before receiving.The user can carry out time shift operation when receiving IPTV broadband program, can also return again and watch digital television broadcasting program.The specific implementation process of above-mentioned scene is as follows:
The browser of user A obtains the EPG page (adopting XML to describe) from the EPG server, and this EPG page is presented to the user with the form of program pages.Wherein, each program all comprises a program chaining information, and the address that obtains corresponding to this program specifically comprises following content:
(1) the programme televised live page, as shown in table 1:
| Programme televised live | Direct broadcast band 1 |
| Request program | Direct broadcast band 2 |
| Broadcast program on schedule | Direct broadcast band 3 |
| Direct broadcast band 4 | |
| Direct broadcast band 5 (support drags) |
Table 1
Direct broadcast band the 1,2, the 3rd, live digital television broadcasting program is not supported to drag; Direct broadcast band 4 is live IPTV broadband programs, does not support to drag (this place is embodiment just, for some live IPTV broadband program, may support to drag); Direct broadcast band 5 is that program is merged in live digital television broadcasting/IPTV broadband, supports to drag.
(2) the request program page, as shown in table 2:
| Programme televised live | Request program 1 |
| Request program | Request program 2 |
| Broadcast program on schedule | Request program 3 |
| Request program 4 | |
| Request program 5 |
Table 2
Wherein, request program all is an IPTV broadband program.
(3) broadcast program pages on schedule, as shown in table 3:
| Programme televised live | Broadcast program 1 07:00-09:00 on schedule |
| Request program | Broadcast program 1 08:00-10:00 on schedule |
| Broadcast program on schedule | Broadcast program 1 09:00-11:00 on schedule |
| Broadcast program 2 12:00-15:00 (support drags) on schedule | |
| Broadcast program 2 13:00-16:00 (support drags) on schedule |
Table 3
Wherein broadcast the program 1 program request digital television broadcasting program that is as the criterion on schedule, adopt the broadcasting wheel to broadcast, do not support to drag; Broadcast be as the criterion interactive broadcasting/broadband of program 2 on schedule and merge program, support to drag.
User A selects direct broadcast band 5 at 10:30, and the program description that can check this channel by browser is as shown in table 4:
| Direct broadcast band 1 | Programme televised live 1 07:00-09:00 |
| Direct broadcast band 2 | Programme televised live 2 09:00-10:00 |
| Direct broadcast band 3 | Programme televised live 3 10:00-11:00 |
| Direct broadcast band 4 | Programme televised live 4 11:00-12:00 |
| Direct broadcast band 5 | Programme televised live 5 12:00-18:00 |
Table 4
User A select to play direct broadcast band 5, and browser obtains the program description of 5 corresponding programs of direct broadcast band from server, and the substance of this program description is as shown in table 5:
| Field | Field value | Explanation |
| v | 0 | Protocol version |
| o | sname 12345 098 IN IP4 156.215.34.54 | Session source information comprises user name, session id, version, network type, address style, address etc. |
| s | s1 | The session name of ISO 10646 character representations |
| u | http://www.huawei.com/staff/sdp.ps | The URI address of the further information of meeting can be provided |
| e | aaa@huawei.com | Provide meeting director's contact details, not necessarily create the people of meeting bulletin |
| p | +86-025-8773000 | Provide meeting director's contact details, not necessarily create the people of meeting bulletin |
| (international form) | ||
| c | IN IP4 224.2.1.1/127/3 | Connect parameter, comprise network type/address information/link address; Then comprise the TTL link address at multipoint conference |
| b | CT:1440 | Provide session or medium institute dedicated bandwidth, unit is kbit/s. modifier: CT (the meeting total bandwidth is represented the total bandwidth of all medium of place), AS (using specific maximum bandwidth, expression the three unities single medium bandwidth) |
| z | 0 | The time zone is adjusted |
| k | Prompt | K=＜method 〉:＜key〉or k=＜method.K=prompt represents that SDP does not provide key but this session or Media Stream are the requirement encryptions. |
| a | PType:＜2〉TunePara:＜detailed tune para descriptor〉Freq:＜detailed freq descriptor〉VPid:＜22〉APid:＜23 〉 | Program category is 2, represents that this program merges program TunePara/Freq for broadcasting/broadband, is the chirp parameter of broadcast channel, and frequency physical parameter VPid/APid describes this joint |
| The PID of the video/audio TS stream of order correspondence |
Table 5
In order to realize the support to digital television broadcasting program, the attribute a in the table 5 need expand: increase program category, the physical parameter descriptor of digital television broadcasting program, digital television broadcasting program TS flow pid information.According to the program category value among the attribute a, can know that this program is that program is merged in digital television broadcasting program, IPTV broadband program or digital television broadcasting/IPTV broadband.
Direct broadcast band 5 merges program for broadcasting/broadband, the media play module is according to the physical parameter of digital television broadcasting program, be tuned to this program frequency points corresponding and receive this frequency TS stream, according to this digital television broadcasting program TS stream pid information, flow through the digital television broadcasting program content that leaches direct broadcast band 5 from TS, demultiplexing is also showed the digital television broadcasting program content of being obtained again.
In the process of watching the digital television broadcasting program content, user A sends the instruction indication moves on to the programme televised live 3 that misses when needing programme content.Browser is searched the program description of programme televised live 3 and is sent to the media play module according to the instruction of receiving; The media play module is then according to being connected to the IPTV broadband server from the program description of browser, request from will the time programme televised live 3 that moves on to the time location broadcast program, stop the receiving digital television broadcast programme content simultaneously.The media play module receives IPTV broadband programme content and broadcast from the IPTV broadband server; In playing process, still can carry out time shift operation.
In addition, in the process of playing IPTV broadband program, user A can be initiatively or passive getting back in the watching of digital television broadcasting program.The media play module is according to the positional information that program description comprised of digital television broadcasting program receiving digital television broadcast programme content again, and being connected of disconnection and IPTV broadband server.
For common digital television broadcasting program, the user knows that according to the program category value in the program description this program is a digital television broadcasting program, be tuned to this program frequency points corresponding according to the physical parameter of digital television broadcasting program and receive this frequency TS stream, flow through the content that leaches this digital television broadcasting program according to this digital television broadcasting program TS stream pid information from TS, demultiplexing is also showed the digital television broadcasting program content that filters out again.
Merge program for broadcast broadcasting/broadband on schedule, the user can take and merge the similar method of program with direct broadcast/broadband, realizes the time shift operation to program in the process of playing digital television broadcasting program.
The unified EPG that the above technology contents all generates based on network side; In actual applications, also can generate unified EPG by end side as shown in Figure 5, and obtain media content based on this.
Referring to Fig. 5, Fig. 5 obtains system for the media content of another preferred embodiment of the present invention.Among Fig. 5, digital television broadcasting server 520, IPTV broadband server 530 provide server 510, data transmit-receive module 541 to link to each other with content identification (CRID) respectively; Program description memory module 542, end side location resolution module 543 link to each other with data transmit-receive module 541, EPG processing module 544 respectively; EPG processing module 544 also links to each other with location resolution server 550, and can further link to each other with policy library 546; Media play module 545 links to each other with end side location resolution module 543, location resolution server 550 respectively.Wherein, data transmit-receive module 541, program description memory module 542, end side location resolution module 543, EPG processing module 544, media play module 545 and policy library 546 are arranged among the HNED 540 usually.
When practical application, for digital television broadcasting program and IPTV broadband program being united to generate unified EPG, CRID provides server 510 need be digital television broadcasting program and the unified CRID of IPTV broadband program distribution, and will be notified to digital television broadcasting server 520 and IPTV broadband server 530 respectively for the CRID that digital television broadcasting program, IPTV broadband program are distributed.Usually, CRID provides the digital television broadcasting program and IPTV broadband program distribution identical CRID of server 510 for having same program content.
Receive when providing the CRID of server 510 that digital television broadcasting server 520 and IPTV broadband server 530 are carried on the CRID that receives respectively among the SI, broadband content guide (BCG) data of respective program (CRID that is distributed at digital television broadcasting program and IPTV broadband program) and send to data transmit-receive module 541 from CRID; Data transmit-receive module 541 will send to program description memory module 542 from the program description in the CRID of digital television broadcasting server 520 and IPTV broadband server 530 and SI, the BCG data, also will send to end side location resolution module 543 from the location resolution information in the CRID of digital television broadcasting server 520 and IPTV broadband server 530 and SI, the BCG data.
When receiving the program description of CRID and digital television broadcasting program and IPTV broadband program by data transmit-receive module 541, program description memory module 542 is set up the corresponding relation between the program description of described digital television broadcasting program, IPTV broadband program according to CRID, and digital television broadcasting program descriptor, the IPTV broadband program description that will set up corresponding relation send to EPG processing module 544.In like manner, when receiving the location resolution information of CRID and digital television broadcasting program and IPTV broadband program by data transmit-receive module 541, end side location resolution module 543 is set up corresponding relation between the location resolution information of this CRID and described digital television broadcasting program, IPTV broadband program.
Receive from program description memory module 542 and set up the digital television broadcasting program of corresponding relation, the program description of IPTV broadband program, EPG processing module 544 adopts general form (as XML, HTML, XHTML) digital television broadcasting program of having set up corresponding relation, the program description of IPTV broadband program are described, finally generate the unified EPG page.As seen, from the unified EPG page, both can find the program description of the digital television broadcasting program content that digital television broadcasting server 520 provided, also can find the program description of the IPTV broadband programme content that IPTV broadband server 530 provided; And, also have corresponding relation between these two kinds of program description.
In fact, the mode of setting up of described corresponding relation may be very simple, as: the program description of the digital television broadcasting server 310 that CRID is identical, the program that IPTV broadband server 330 is provided is stored in the program description storage list as shown in table 6 by following described rule.
Certainly, if EPG processing module 544 links to each other with policy library 546, EPG processing module 544 can also be further considered the EPG generation strategy in the policy library 546 when generating the unified EPG page.The concrete grammar that generates the unified EPG page according to the EPG generation strategy is with of the prior art to generate the method for the common EPG page according to the EPG generation strategy identical.Described EPG generation strategy comprises: user and/or EPG server are to the generation strategy of the EPG page.In fact, the browser 341 among Fig. 3 also can link to each other with policy library, so that further consider the EPG generation strategy in the policy library when generating the unified EPG page.
Particularly, program description memory module 542 program description of being stored is normally through resolving.For SI, resolve PAT, the PMT, the tables such as NIT, SDT that obtain and leave concentratedly usually; For out of Memory, then press usually in the program description storage list shown in the table 6, to being described as follows of this table:
(1) all comprise this field in CRID:SI and the BCG data, as shown in table 6, as the first order index of program description, will have broadcast program A1, the A2 of identical CRID, the program description of broadband program A3, A4 organizes together.。
(2) marks (flag), being used to identify program is digital television broadcasting program or IPTV broadband program, shows that program description is from SI that is:, still from the BCG data.
(3) program description of respective digital television program and IPTV broadband program.
The program description list that generates can be as shown in table 6:
Table 6
Because program description is the description to programme content various aspects attribute, therefore for digital television broadcasting program, except CRID, following field (can obtain from the EIT table) also is necessary usually:
Original_network_id, transport_stream_id, service_id, event_id, start_time, duration, title (from short_event_descriptor, obtaining)
Except above-mentioned field, also the contents attribute that might obtain has:
Synopsis (from the short_event_descrriptor of EIT table and extended_event_descriptor, obtaining);
ParentGuidence (from the parent_rating_descriptor of EIT table, obtaining);
Genre (from the content_descriptor of EIT table, obtaining);
Language (from the multilingual_component_descriptor of EIT table, obtaining);
AVAttribute (from the component_descriptor of SDT table, obtaining).
For the program of IPTV broadband, except CRID, it is obtainable certainly having only title usually.But,, can also obtain also obtainable information from EIT such as Synopsis, ParentGuidence, Genre, Language, AVAttribute according to the data structure of IPTV broadband program; And Keyword, CreditsList, AwardsList, ProgramReview etc. the information that from the EIT table, can't obtain.And, because IPTV broadband program self characteristics, may also have the information such as the term of validity, purchase information of program.
For identical programme content, EPG processing module 544 is got maximum collection in relevant those attributes (Title, Synopsis, ParentGuidence, Genre, Language, Keyword, CreditsList, AwardsList, ProgramReview......) of contents production, or the pre-defined contents production association attributes of showing in the EPG page (by manufacturer or user's decision).
In addition, location resolution server 550 can not only provide service but also provide service to digital television broadcasting server 520 IPTV broadband server 530, also can only provide service to IPTV broadband server 530.At the previous case, all positional informations are all resolved CRID by location resolution server 550 and are obtained; At latter event, what location resolution server 550 parsing CRID obtained is the positional information of obtaining IPTV broadband program, the locating information of digital television broadcasting program is then directly according to its original_network_id, transport_stream_id, service_id, event_id, start_time, duration generates.
After generating the unified EPG page, EPG processing module 544 sends to end side location resolution module 543 with the CRID in the EPG page that generates.(suppose that selected is digital television broadcasting program when having received that because of user's selection certain program in the EPG page is selected, perhaps acquiescence is selected digital television broadcasting program) instruction (comprise that indication is the digital television broadcasting program or the program category of IPTV broadband program, and program description) time, EPG processing module 544 is obtained the CRID of selected program correspondence, and the program category of this CRID and selected program is sent to end side location resolution module 543; The corresponding relation that relates to positional information that end side location resolution module 543 is set up according to self, search the pairing positional information of the CRID that receives with digital television broadcasting program of described program category, and the positional information that finds sent to media play module 545, obtain and show the positional information digital television broadcasting program content of receiving pointed by media play module 545.Concrete digital television broadcasting program content acquisition method is identical with the corresponding acquisition methods described in Fig. 3.
When media play module 545 received and shows the digital television broadcasting program content, EPG processing module 544 can also be carried out time shift control to the digital television broadcasting program content that receives according to the instruction of receiving.The process of carrying out time shift control is generally: EPG processing module 544 receives that (this instruction comes from the applied remote controller of user usually in the time shift instruction of carrying out time shift, the digital television broadcasting program descriptor that wherein comprises the program category and the digital television broadcasting program of IPTV broadband program usually), and then from the EPG page, find the pairing CRID of described digital television broadcasting program descriptor, and the program category of time location in this CRID, the time shift instruction and the time shift program that needs is sent to end side location resolution module 543; The corresponding relation that relates to positional information that end side location resolution module 543 is set up according to self, search the positional information of the pairing IPTV of the CRID that receives broadband program, and the described time location that will receive and the positional information that finds send to media play module 545, by media play module 545 obtained according to the positional information of receiving and display offset the IPTV broadband programme content of described time location.Concrete IPTV broadband programme content acquisition methods is identical with the corresponding acquisition methods described in Fig. 3.
By the above as seen, the end side location resolution module 543 that is arranged in HNED 540 can be provided for the positional information of receiving media content to media play module 545.In actual applications, also can location resolution server 550 be set, be provided for the positional information of receiving media content by location resolution server 550 to media play module 545 at network side.Certainly, need to store digital television broadcasting program location resolution information, the IPTV broadband program location resolving information of having set up corresponding relation according to CRID in the location resolution server 550.
Particularly, when the CRID that receives from EPG processing module 544, if end side location resolution module 543 does not find the pairing positional information of the CRID that receives, end side location resolution module 543 is just returned failure response to EPG processing module 544, and the CRID that will once send to end side location resolution module 543 when EPG processing module 544 is received this failure response sends to location resolution server 550; Certainly, EPG processing module 544 also can directly send to CRID location resolution server 550.
Receive CRID from EPG processing module 544 when (also having program category usually), location resolution server 550 is searched the pairing positional information of this CRID, and the positional information that finds is sent to media play module 545.The method that location resolution server 550 is searched positional information is identical with the correlation method that aforesaid end side location resolution module 543 is searched positional information.
Realized the generation of the unified EPG page and the function that program location information is obtained because EPG processing module 544 and end side location resolution module 543 cooperate, thereby EPG processing module 544 and the end side location resolution module 543 unified EPG that are called have been generated and location information acquiring unit.
The operating process that system shown in Figure 5 is obtained media content totally as shown in Figure 6.Referring to Fig. 6, Fig. 6 is the flow chart that system shown in Figure 5 obtains media content, and this flow process may further comprise the steps:
Step 601 provides server to send unified CRID to digital television broadcasting server and IPTV broadband server respectively to step 602:CRID.
Step 603 is to step 607: the digital television broadcasting program descriptor that the digital television broadcasting server will carry CRID sends to HNED; The IPTV broadband program description that the IPTV broadband server will carry CRID sends to HNED.HNED utilizes CRID that digital television broadcasting program descriptor, the IPTV broadband program description received are set up corresponding relation and is stored in the program information table, also generates the unified EPG page according to the CRID that establishes corresponding relation, digital television broadcasting program descriptor and IPTV broadband program description.
Step 608 is to step 609: digital television broadcasting program is selected, obtains its positional information in the corresponding program description of this program, and obtains this positional information digital television broadcasting program content pointed.
Step 610 is known medium control operations such as will carrying out time shift control to step 612:HNED.Particularly, can be that EPG processing module among the HNED receives that the time shift instruction back of carrying out time shift determines to carry out the medium control operation; Also can be that the EPG processing module is determined to carry out the medium control operation according to self being provided with.
EPG processing module 544 is obtained the CRID of the digital television broadcasting program of current reception from the program description table or the EPG page, and obtain the pairing IPTV of this CRID broadband program location information in the end side location resolution module 543, obtain again and display position information IPTV broadband programme content pointed.
With the corresponding practical application scene of Fig. 5, Fig. 6 in, user A can carry out time shift operation when watching digital television broadcasting program, can enter into broadband mode when carrying out time shift operation with the pairing IPTV of the digital television broadcasting program broadband program before receiving.The user can carry out time shift operation when receiving IPTV broadband program, can also return again and watch digital television broadcasting program.The specific implementation process of above-mentioned scene is as follows:
The HNED of user A generates the EPG page and presents to the user according to the program description of obtaining.Wherein, each program all comprises a program chaining information, and the CRID that can be this program also can be that (for digital television broadcasting program, this obtains the address is DVBlocator for the locating information of this program; For the program of IPTV broadband, this obtains the address is the rtsp server address).Specifically comprise following content:
(1) the programme televised live page, as shown in table 7:
| Programme televised live | Direct broadcast band 1 |
| Request program | Direct broadcast band 2 |
| Broadcast program on schedule | Direct broadcast band 3 |
| Direct broadcast band 4 | |
| Direct broadcast band 5 (support drags) |
Table 7
Direct broadcast band the 1,2, the 3rd, live digital television broadcasting program is not supported to drag; Direct broadcast band 4 is live IPTV broadband programs, does not support to drag (this place is embodiment just, for some live IPTV broadband program, may support to drag); Direct broadcast band 5 is that program is merged in direct broadcast/broadband, supports to drag.
(2) the request program page, as shown in table 8:
| Programme televised live | Request program 1 |
| Request program | Request program 2 |
| Broadcast program on schedule | Request program 3 |
| Request program 4 | |
| Request program 5 |
Table 8
Wherein, request program all is an IPTV broadband program.
(3) broadcast program pages on schedule, as shown in table 9:
| Programme televised live | Broadcast program 1 07:00-09:00 on schedule |
| Request program | Broadcast program 1 08:00-10:00 on schedule |
| Broadcast program on schedule | Broadcast program 1 09:00-11:00 on schedule |
| Broadcast program 2 12:00-15:00 (support drags) on schedule | |
| Broadcast program 2 13:00-16:00 (support drags) on schedule |
Table 9
Wherein broadcast the program 1 program request digital television broadcasting program that is as the criterion on schedule, adopt the broadcasting wheel to broadcast, do not support to drag.Broadcast be as the criterion interactive broadcasting/broadband of program 2 on schedule and merge program, support to drag.
User A selects direct broadcast band 5 at 10:30, and the program description that can check this channel by the EPG processing module is as shown in table 10:
| Direct broadcast band 1 | Programme televised live 1 07:00-09:00 |
| Direct broadcast band 2 | Programme televised live 2 09:00-10:00 |
| Direct broadcast band 3 | Programme televised live 3 10:00-11:00 |
| Direct broadcast band 4 | Programme televised live 4 11:00-12:00 |
| Direct broadcast band 5 | Programme televised live 5 12:00-18:00 |
Table 10
User A selects to play direct broadcast band 5, and link provides its CRID, resolves CRID then and obtains locator; Perhaps directly provide its locator:
dvb://<original_network_id>.<transport_stream_id>.<service_id>
From corresponding PSI/SI table, can obtain the required various physical parameters of IRD according to these three ID, thereby can be tuned to this program frequency points corresponding according to the physical parameter of obtaining and receive this frequency TS stream, according to this digital television broadcasting program TS stream pid information, flow through the digital television broadcasting program content that leaches direct broadcast band 5 from TS, demultiplexing is also showed the digital television broadcasting program content of being obtained again.
In the process of watching the digital television broadcasting program content, user A sends the instruction indication moves on to the programme televised live 3 that misses when needing programme content.At this moment can obtain the CRID of programme televised live 3, and resolve according to this CRID and to obtain program acquisition address, IPTV broadband, obtain the address according to this again and be connected to the IPTV broadband server, request from will the time time location that moves on to play IPTV broadband program; Meanwhile, stop the receiving broadcast content content.The process that receives IPTV broadband programme content from the IPTV broadband server and play, still can carry out time shift operation.
In addition, in the process of playing IPTV broadband program, user A can be initiatively or passive getting back in the watching of digital television broadcasting program.The media play module is according to the positional information that program description comprised of digital television broadcasting program receiving digital television broadcast programme content again, and being connected of disconnection and IPTV broadband server.
For common digital television broadcasting program, can be tuned to this program frequency points corresponding according to the physical parameter of digital television broadcasting program and receive this frequency TS stream, flow through the content that leaches this digital television broadcasting program according to this digital television broadcasting program TS stream pid information from TS, demultiplexing is also showed the digital television broadcasting program content that filters out again.
Merge program for broadcast broadcasting/broadband on schedule, the user can take and merge the similar method of program with direct broadcast/broadband, realizes the time shift operation to program in the process of playing digital television broadcasting program.Above mentioned time shift instruction is meant the streaming media playing control command, specifically comprises broadcast, time-out, F.F., rewind down, drags etc.And above mentioned positional information normally is used for obtaining at least one information of address, time and the frequency point information of digital television broadcasting program stream.
By the above as seen, no matter still generate the unified EPG page by end side by network side, end side all needs to obtain media content according to the positional information that comprises in the program description in the EPG page that generates; And after this, end side can also further be searched the program description of pairing another type program of program of current reception, and obtains the positional information media content pointed in this program description.These recapitulative operations as shown in Figure 7.Referring to Fig. 7, Fig. 7 obtains media content flow process sketch for further embodiment of this invention, and this flow process may further comprise the steps:
Step 710:, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description for digital television broadcasting program descriptor and IPTV broadband program description are set up corresponding relation.
There is program selected in the step 720:EPG page, obtains the positional information media content pointed in this program description.
Step 730: in the EPG page, search the program description of pairing another type program of program of current reception, and obtain the positional information media content pointed in this program description.
Certainly, in step 720 and step 730, all can further play the media content that gets access to.
By the above as can be seen, the disclosed method and apparatus that obtains media content of the embodiment of the invention makes user terminal can obtain digital television broadcasting program content, the such media content of IPTV broadband programme content according to unified EPG.
Claims (28)
1. method of utilizing unified Electronic Program Guide EPG to obtain media content is characterized in that this method may further comprise the steps:
A. set up corresponding relation for digital television broadcasting program descriptor and IPTV broadband program description, and generation comprises the EPG page of corresponding digital television broadcasting program descriptor and IPTV broadband program description, wherein, the described corresponding relation of setting up is: the broadcast program description information of digital television broadcasting program and the broadband program description of IPTV broadband program are stored in passing through in the related list cell of unified content identification of program description table, or, set up digital television broadcasting program according to unified content identification, corresponding relation between the program description of IPTV broadband program;
B. when having program selected in the EPG page, obtain positional information, obtain positional information media content pointed by program description.
2. the method for claim 1 is characterized in that, in the steps A, the method that generates the described EPG page is:
Adopt XML, HTML or XHTML form that the program description of having set up corresponding relation is described, generate the unified EPG page.
3. method as claimed in claim 2 is characterized in that, when generating the unified EPG page, further according to user and/or EPG server the generation strategy of the EPG page is generated the described unified EPG page.
4. the method for claim 1 is characterized in that, among the step B, during the selected instruction of certain program, determines that this program is selected in having received the EPG page.
5. the method for claim 1 is characterized in that, among the step B, selected is digital television broadcasting program, and the media content that obtains is the content of this digital television broadcasting program, and the acquisition methods of this digital television broadcasting program content is:
According to the address information in the link information of selected program in the EPG page, obtain this address information digital television broadcasting program descriptor pointed; Perhaps, direct program chaining information from the EPG page is obtained the digital television broadcasting program descriptor of this program;
According to the digital television broadcasting program descriptor receiving digital television broadcast programme content that obtains.
6. the method for claim 1 is characterized in that, among the step B, selected is IPTV broadband program, and the media content that obtains is the content of this IPTV broadband program, and the acquisition methods of this IPTV broadband programme content is:
According to the address information in the link information of selected program in the EPG page, obtain this address information IPTV broadband program description pointed; Perhaps, direct program chaining information from the EPG page is obtained the IPTV broadband program description of this program;
Receive the IPTV broadband programme content of the streaming media server address in the program description of IPTV broadband, perhaps by the IPTV broadband programme content of the clean culture in the program description of IPTV broadband/multicast address reception from the media content sources in the program description of IPTV broadband.
7. method as claimed in claim 3 is characterized in that, among the step B, selected is digital television broadcasting program, and the media content that obtains is the content of this digital television broadcasting program, and the acquisition methods of this digital television broadcasting program content is:
The pairing unified content identification of broadcast program description information of obtaining selected digital television broadcasting program from the EPG page, and search the pairing positional information of this unified content identification according to unified content identification and the corresponding relation between the positional information set up;
According to the positional information receiving digital television broadcast programme content that finds.
8. method as claimed in claim 3 is characterized in that, among the step B, selected is IPTV broadband program, and the media content that obtains is the content of this IPTV broadband program, and the acquisition methods of this IPTV broadband programme content is:
From the EPG page, find the pairing unified content identification of broadband program description of selected IPTV broadband program, and search the pairing positional information of this unified content identification according to unified content identification and the corresponding relation between the positional information set up in advance;
Search the streaming media server address in the positional information, obtain IPTV broadband programme content, perhaps by the IPTV broadband programme content of the clean culture in the described positional information/multicast address reception from the media content sources in this positional information from streaming media server.
9. as each described method of claim 5 to 8, it is characterized in that, further play the media content of receiving.
10. as claim 1,2,4,5 or 6 described methods, it is characterized in that the media content of reception is the digital television broadcasting program content; When receiving that when described digital television broadcasting program content carried out the time shift instruction of time shift control, this method further comprised:
From the EPG page, obtain the broadband program description of the pairing IPTV of the current digital television broadcasting program that is just receiving broadband program, and receive IPTV broadband programme content according to the positional information in described time shift instruction and the described IPTV broadband program description.
11. method as claimed in claim 10 is characterized in that, the method for obtaining described IPTV broadband program description is:
According to the corresponding relation between digital television broadcasting program descriptor that comprises in the EPG page and the IPTV broadband program description, read the broadband program description of the pairing IPTV of the broadcast program description information broadband program of the current digital television broadcasting program that is just receiving;
Perhaps, send the time shift instruction to the EPG server; The EPG server is received time shift instruction, obtains the pairing IPTV of digital television broadcasting program descriptor broadband program description wherein and the described IPTV broadband program description that will obtain feeds back to the described unit that sends the time shift instruction to the EPG server.
12. method as claimed in claim 10 is characterized in that, the IPTV broadband programme content that receive provides in the multicast mode, and the method that receives this IPTV broadband programme content is:
According to the time shift instruction, know the multicast address in the IPTV broadband program description of receiving, and add multicast address, receive IPTV broadband programme content from this multicast group.
13. method as claimed in claim 10 is characterized in that, the IPTV broadband programme content that receive provides with mode of unicast, and the method that receives this IPTV broadband programme content is:
Send the time shift instruction to the IPTV broadband server, the IPTV broadband server sends the broadband programme content with mode of unicast;
Receive the IPTV broadband programme content that the IPTV broadband server is sent.
14., it is characterized in that the media content of reception is the digital television broadcasting program content as claim 1,2,3,7 or 8 each described methods; When receiving that when described digital television broadcasting program content carried out the time shift instruction of time shift control, this method further comprised:
From the EPG page, find the pairing unified content identification of descriptor of described digital television broadcasting program, find pairing IPTV broadband program description by unified content identification, and receive IPTV broadband programme content according to the positional information in described time shift instruction and the described IPTV broadband program description.
15. a device that utilizes unified EPG to obtain media content is characterized in that, this device comprises continuous EPG generation and location information acquiring unit, media play module;
Wherein, EPG generates and location information acquiring unit, be used to digital television broadcasting program descriptor and IPTV broadband program description to set up corresponding relation, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description; And the descriptor that program is arranged in the EPG page is when selected, provide positional information in this program description to the media play module, wherein, the described corresponding relation of setting up is: the broadcast program description information of digital television broadcasting program and the broadband program description of IPTV broadband program are stored in passing through in the related list cell of unified content identification of program description table, or, set up the corresponding relation between the program description of digital television broadcasting program, IPTV broadband program according to unified content identification;
The media play module is used to receive the positional information media content pointed from EPG generation and location information acquiring unit.
16. device as claimed in claim 15 is characterized in that, described EPG generates and location information acquiring unit comprises continuous: EPG server, browser;
Wherein, the EPG server, be used to digital television broadcasting program descriptor and IPTV broadband program description to set up corresponding relation, and generate the EPG page that comprises corresponding digital television broadcasting program descriptor and IPTV broadband program description, also the EPG page that generates is sent to browser;
Browser is used for when the EPG page has the descriptor of program selected, obtains the positional information in the descriptor of this program and sends to the media play module.
17. device as claimed in claim 16 is characterized in that, the descriptor format of the described EPG page is: XML, HTML or XHTML form.
18. device as claimed in claim 16 is characterized in that, selected is digital television broadcasting program, and the media content that obtains is the content of this digital television broadcasting program, and described positional information comprises: physical transfer net information and elementary stream sign.
19. device as claimed in claim 16, it is characterized in that selected is IPTV broadband program, the media content that obtains is the content of this IPTV broadband program, described positional information comprises: internet protocol TV IPTV broadband server address, or the clean culture/multicast address of media content sources.
20., it is characterized in that the media content of reception is the digital television broadcasting program content as each described device of claim 16 to 18;
Described EPG server, be further used for receiving when described digital television broadcasting program content carried out the time shift instruction of time shift control, from the EPG page, obtain the broadband program description of the pairing IPTV of the current digital television broadcasting program that is just receiving broadband program, and time shift instruction and the IPTV broadband program description obtained are sent to the media play module;
Described media play module is further used for receiving IPTV broadband programme content according to the positional information in described time shift instruction and the described IPTV broadband program description.
21. as each described device of claim 16 to 19, it is characterized in that, described EPG server all links to each other with digital television broadcasting server, IPTV broadband server by data transmit-receive module with browser, and being used to be respectively the media play module provides digital television broadcasting program and IPTV broadband program.
22. device as claimed in claim 16 is characterized in that, described EPG generates and location information acquiring unit comprises continuous: EPG processing module, end side location resolution module;
Wherein, the EPG processing module, be used for according to unified content identification, set up the corresponding relation between the program description of digital television broadcasting program, IPTV broadband program, and generate and comprised the digital television broadcasting program descriptor of setting up corresponding relation and the EPG page of IPTV broadband program description; And when in the EPG page, having program selected, the unified content identification of selected program is sent to end side location resolution module;
End side location resolution module is used for obtaining the pairing positional information of this unified content identification and sending to the media play module when the unified content identification of receiving from the EPG processing module.
23. device as claimed in claim 22, it is characterized in that selected is IPTV broadband program, the media content that obtains is the content of this IPTV broadband program, described positional information comprises: IPTV broadband server address, or the clean culture/multicast address of media content sources.
24., it is characterized in that the media content of reception is the digital television broadcasting program content as claim 22 or 23 described devices;
Described EPG processing module, be further used for the pairing unified content identification of descriptor of from the EPG page, finding described digital television broadcasting program when described digital television broadcasting program content carried out the time shift instruction of time shift control receiving, and unified content identification is sent to end side location resolution module;
Described end side location resolution module is further used for obtaining positional information according to described unified content identification, and positional information is sent to the media play module;
Described media play module is further used for receiving IPTV broadband programme content according to the positional information in described time shift instruction and the described IPTV broadband program description.
25. device as claimed in claim 24 is characterized in that, described positional information is IPTV broadband server address, or the clean culture/multicast address of media content sources.
26. as claim 22,23 or 25 described devices, it is characterized in that, described EPG processing module links to each other with the program description memory module, and described program description memory module all links to each other with digital television broadcasting server, IPTV broadband server by data transmit-receive module with end side location resolution module; Described digital television broadcasting server, IPTV broadband server all provide server to link to each other with content identification;
Wherein, content identification provides server, is used for the unified content identification for digital television broadcasting program and the unified distribution of IPTV broadband program is sent to digital television broadcasting server, IPTV broadband server;
Digital television broadcasting server and IPTV broadband server are used for the digital television broadcasting program that will have unified content identification, the positional information of IPTV broadband program sends to end side location resolution module at least;
The program description memory module is used to store according to unified content identification and has set up the digital television broadcasting program of corresponding relation, the program description of IPTV broadband program, and sends to the EPG processing module and be used to generate the described EPG page.
27. device as claimed in claim 22 is characterized in that, described EPG processing module further links to each other with the location resolution server with the media play module;
Described location resolution server is used for sending the pairing positional information of this unified content identification according to the request that comprises unified content identification that the EPG processing module sends to the media play module.
28. device as claimed in claim 15 is characterized in that, described EPG generates and location information acquiring unit further links to each other with policy library, is used for further considering when the described EPG page of generation the EPG generation strategy of policy library.
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| CN102291602B (en) * | 2011-08-17 | 2014-11-26 | 深圳Tcl新技术有限公司 | Method and device for identifying network resources of digital network all-in-one machine |
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| CN101193256A (en) | 2008-06-04 |
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