CN100589571C - Method and apparatus for switching from program preview to normal program - Google Patents
Method and apparatus for switching from program preview to normal program Download PDFInfo
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- CN100589571C CN100589571C CN200810081846A CN200810081846A CN100589571C CN 100589571 C CN100589571 C CN 100589571C CN 200810081846 A CN200810081846 A CN 200810081846A CN 200810081846 A CN200810081846 A CN 200810081846A CN 100589571 C CN100589571 C CN 100589571C
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Abstract
A method and device for switching program preview to normal program, the method includes the following steps: A. the user terminal obtains service number of normal program corresponding to the programpreview information in video stream parameter set and/or audio stream parameter set of multiple sub-frame head corresponding to the program preview information; finding corresponding multiple sub-frame number in multiple configuration list with the service number; B. the user terminal switches to the normal program channel to play according to the multiple sub-frame number when playing the program preview information. By employing the method and device of the invention, users can conveniently switch to corresponding normal program channel to play after watching the program preview without need of backing from the program preview to ESG interface to perform program selections. Otherwise, the invention is based on separate channel preview mode, system can flexibly broadcast program previewinformation in real time.
Description
Technical field
The present invention relates to the digital mobile communication technology, relate in particular to the method and the device that switch to normal program in the digital broadcasting service by previewing programs.
Background technology
At present, along with developing rapidly of multimedia technology and mobile communication technology, the user has higher requirement to the portability and the mobility of terminal, China Mobile multimedia broadcasting (CMMB, China MobileMultimedia Broadcasting) is the system of first cover of domestic independent research, multiple services such as video broadcasting, audio broadcasting and urgent broadcast are provided for the terminal use towards multiple portable terminals such as mobile phone, PDA, MP3, MP4, digital camera and notebook computers.
China mobile multi-media broadcasting technology adopts time division multiplexing mode to send multi-media broadcasting service, and the duration of its broadcast channel frame is 1 second, is made up of 40 25 milliseconds time slot, and one or more time slots can transmit the data of a multiplexed frame encapsulation.
In the multiplexed frame structure of Mobile Multimedia Broadcasting, multiplexed frame is divided into multiplex frame head, multiplexed frame payload and fills three parts; The mode that China mobile multi-media broadcasting technology adopts control information to separate with business datum sends, for the control channel time slot corresponding, and corresponding multiplexed frame encapsulation control information; For the Traffic Channel time slot corresponding, corresponding multiplexed frame encapsulation business datum.(be multiplexed frame 0, payload MF_ID=0) is a plurality of control information tables to the control channel multiplexed frame.The payload of Traffic Channel multiplexed frame (multiplexed frame MF_ID ≠ 0) is a plurality of multiplexed sub frames.
Fig. 1 is the structural representation of multiplexed sub frame.As shown in Figure 1, the corresponding concrete business of each multiplexed sub frame wherein comprises: subframe head, video-frequency band, audio section and data segment.Terminal will receive relevant business, must obtain period service duplexing configuration list from control channel (the control information table of multiplexed frame 0) earlier, and the structure of period service duplexing configuration list as shown in Figure 2.The user obtains service identification by electron service instruction (ESG, Electronic Service Guide), and uses service identification to find out this business time slot corresponding and multiplexed sub frame number from period service duplexing configuration list, thereby obtains business datum.
Previewing programs is a critical services of multimedia broadcasting, and system sends to the user with the wonderful of program and watches; So that user selection ground program receiving.But, adopting existing previewing programs mode, the user must return to the electron service instruction interface behind previewing programs, select program viewing by electron service instruction, and user's operation is more loaded down with trivial details.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and switches to the method and the device of normal program by previewing programs, makes the user to be directly switch to corresponding normal program by previewing programs and plays, to improve operability and to improve user experience.
In order to solve the problems of the technologies described above, the invention provides and a kind ofly switch to the method for normal program by previewing programs, this method comprises the steps:
A: user terminal receives and stores multiplexing allocation list and the multiplexed sub frame that comprises program preview information at mobile multimedia broadcasting channel, obtains the professional sequence number of the normal program corresponding with described program preview information in video flowing parameter set in the multiplexed sub frame head of program preview information correspondence and/or the audio stream parameter set; And use this business sequence number in multiplexing allocation list, to search corresponding multiplexed sub frame number;
B: when playing described program preview information, user terminal is play according to the channel that described multiplexed sub frame number switches to described normal program place.
In addition, in the steps A, described user terminal also obtains the time started value and the duration value of described professional sequence number correspondence in described video flowing parameter set and/or audio stream parameter set;
Among the step B, before the channel that switches to described normal program place, described user terminal is judged the current reproduction time section that whether is in this normal program according to described time started value and duration value, if then carry out described switching.
In addition, described user terminal also reads the previewing programs indication field in described video flowing parameter set and/or audio stream parameter set, and judges professional sequence number, time started and the duration value that whether comprises described normal program in this video flowing or the audio stream parameter set according to the previewing programs indicated value that reads.
In addition, among the step B, if according to described time started and the current reproduction time section that is not in described normal program of duration value judgement, and consumer premise described normal program, then described user terminal be provided with one in the reproduction time section of described normal program overdue timer of time started, and the channel that automatically switches to described normal program place when this timer expires plays, or plays according to the channel that user's indication switches to described normal program place.
The present invention also provides a kind of and switches to the device of normal program by previewing programs, comprises the playing programs unit, receiving element, multiplexed sub frame resolution unit, switch unit; Wherein:
Described receiving element is used for receiving and store multiplexing allocation list at mobile multimedia broadcasting channel, the switching signal that sends according to described switch unit receives corresponding multiplexed sub frame, the audio section in the multiplexed sub frame and/or video-frequency band data is sent to described playing programs unit play; And video flowing parameter set in the multiplexed sub frame and/or audio stream parameter set sent to described multiplexed sub frame resolution unit;
Described multiplexed sub frame resolution unit is used to receive video flowing parameter set and/or the audio stream parameter set that described receiving element sends, and from the video flowing parameter set of the program preview information correspondence of current broadcast and/or audio stream parameter set the professional sequence number of extraction and the output normal program corresponding with described program preview information;
Described switch unit is used to receive the described professional sequence number of described multiplexed sub frame resolution unit output, uses this business sequence number to search corresponding multiplexed sub frame number in multiplexing allocation list; And, indicate described receiving element to receive corresponding multiplexed sub frame to described receiving element transmission switching signal.
In addition, described multiplexed sub frame resolution unit also is used for from video flowing parameter set and/or the extraction of audio stream parameter set and output time started value and the duration value corresponding with the professional sequence number of described normal program of the program preview information correspondence of current broadcast;
Described switch unit also is used for judging the current reproduction time section that whether is in described normal program according to described time started value and duration value, if then send described switching signal before described receiving element sends switching signal.
In addition, described multiplexed sub frame resolution unit also is used for obtaining the previewing programs indication from described video flowing parameter set and/or audio stream parameter set, and judges professional sequence number, time started and the duration value that whether comprises described normal program in this video flowing or the audio stream parameter set according to the previewing programs indicated value.
In addition, if described switch unit is judged the current reproduction time section that is not in described normal program according to described time started and duration value, and consumer premise described normal program, then be provided with one in the reproduction time section of described normal program overdue timer of time started, and when this timer expires, send described switching signal automatically, or send described switching signal according to user's indication.
Adopt method of the present invention and device, can after the user watches previewing programs, switch to corresponding normal program channel easily and play, need not to return to the ESG interface by previewing programs again and carry out the program selection operation.In addition, the present invention is based on the preview mode of independent preview channel, and system can broadcast program preview information flexibly, in real time.
Description of drawings
Fig. 1 is the structure of mobile multimedia broadcasting multiplex subframe;
Fig. 2 is the structure of mobile multimedia broadcasting multiplex allocation list;
Fig. 3 switches to the method flow diagram that normal program is play for the embodiment of the invention by previewing programs;
Fig. 4 switches to the device schematic diagram that normal program is play for the embodiment of the invention by previewing programs.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
As shown in Figure 1, subframe head in the mobile multimedia broadcasting multiplex subframe has mainly been described the Overhead of this subframe, promptly to the description of video-frequency band, audio section and data segment in this subframe, comprising the descriptor of a plurality of video flowings of encapsulating in the video-frequency band, the descriptor of a plurality of audio streams that encapsulate in the audio section.
For the multiplexed sub frame that is packaged with program preview information, comprise " previewing programs indication " field in video (audio frequency) the stream parameter set of its subframe expansion area, this field is used for describing professional sequence number, time started and the duration whether this video (audio frequency) stream parameter set comprises the normal program corresponding with this program preview information.
For example, " previewing programs indication " field value is 1 (effective value), represents that follow-up professional sequence number, time started and duration field are the respective field of the normal program of this pre-review information correspondence.
When previewing programs directive segment value is effective value:
Professional sequence number is represented the professional sequence number of the normal program of program preview information correspondence;
Time started is represented the time started of the normal program of program preview information correspondence;
Duration is represented the duration of the normal program of program preview information correspondence.
Fig. 2 is the structural representation of the multiplexing allocation list of Mobile Multimedia Broadcasting.As shown in Figure 2, multiplexing allocation list contains information such as the pairing timeslot number of each business (by professional sequence number sign), multiplexed sub frame number, and these information can be used to switch to corresponding channel (multiplexed sub frame).
Fig. 3 is that the embodiment of the invention switches to the method flow diagram that normal program is play by previewing programs, and this method may further comprise the steps:
301: user terminal receives and storage control information table (as, multiplexing allocation list etc.) and comprise the multiplexed sub frame (can be independent previewing programs channel) of program preview information at the CMMB channel;
302: video flowing parameter set in the subframe head of user terminal extraction program preview information place multiplexed sub frame and/or the previewing programs directive segment value in the audio stream parameter set, judge professional sequence number, time started, the duration that whether comprises the corresponding normal program of this program preview information in this parameter set according to this field value; If comprise, then extract and preserve corresponding service sequence number, time started value, duration value;
When previewing programs directive segment value be effective value (for example, 1) time, professional sequence number field, time started field, duration field follow-up in this parameter set of decidable are effective field, and promptly above-mentioned field value is respectively professional sequence number, time started, the duration of the pairing normal program of this program preview information; If this field value is invalid value (for example, 0), follow-up professional sequence number field, time started field, the duration field of decidable is invalid field.
303: the user watches program preview information;
304: when program preview information finishes or user when carrying out in the process of previewing programs selecting to switch to the normal program channel corresponding with this pre-review information by modes such as buttons, user terminal is searched the above-mentioned professional sequence number that comprises in video flowing parameter set corresponding with this pre-review information and/or the audio stream parameter set, whether and to inquire about this program according to professional sequence number be free program, if, then execution in step 305, otherwise execution in step 309;
305: judge according to time started value, the duration value of above-mentioned professional sequence number correspondence whether this normal program is broadcasted, if transfer to, then execution in step 306, otherwise execution in step 307;
User terminal obtains the reproduction time segment information (time started～time started+duration) of corresponding normal program according to professional sequence number, by local zone time and playing programs time period are compared, if local zone time in the reproduction time section, represents that then this program broadcasts; If local zone time not in the reproduction time section, represents then that this program does not also begin to broadcast.
306: according to above-mentioned professional sequence number, in period service duplexing configuration list, obtain information such as corresponding multiplexed sub frame number, and switch to the channel (multiplexed sub frame) at this program place according to information such as multiplexed sub frames number, and the data (being the normal program data) that receive this channel are play, and this method finishes;
307: whether be scheduled to (reservation) this normal program by eject form inquiry users such as dialog box in user terminal screen, if this normal program of consumer premise, then execution in step 308, otherwise process ends;
308: user terminal starts one at overdue timer of above-mentioned time started; And the channel that automatically switches to the normal program place according to above-mentioned professional sequence number when timer expires plays, or whether prompting/inquiry user switch to above-mentioned channel and play, and this method finishes;
309: whether inquiring user has the authority of enjoying this normal program (such as user's charges paid whether, or the user is specific for this authority etc. is arranged), carries out if then change step 305, if not execution in step 310 then;
310: carry out the authority transaction flow, jump to step 301 after finishing.
Fig. 4 is that the embodiment of the invention switches to the device schematic diagram that normal program is play by previewing programs.As shown in Figure 4, this device comprises: receiving element, multiplexed sub frame resolution unit, switch unit, playing programs unit.Wherein:
Receiving element is used for receiving and storage control information table at the CMMB channel, and according to switching indication to receive multiplexed sub frame (can be independent previewing programs channel, and the audio section in the multiplexed sub frame and/or video-frequency band data are sent to the playing programs unit play or normal program channel); Subframe parameters such as the video flowing in the multiplexed sub frame, audio stream parameter set are sent to the multiplexed sub frame resolution unit;
The multiplexed sub frame resolution unit is used to receive above-mentioned multiplexed sub frame head parameter, and video flowing parameter set in the subframe head of extraction program preview information place multiplexed sub frame and/or the previewing programs directive segment value in the audio stream parameter set, judge professional sequence number, time started, the duration that whether comprises the corresponding normal program of this program preview information in this parameter set according to this field value; If comprise, then extract and export corresponding service sequence number, time started value, duration value;
Switch unit is used for (for example indicating according to the switching of user or system's transmission, the notice that user's button operation, pre-review information finish etc.), and the professional sequence number of multiplexed sub frame resolution unit output sends switching signal (can be channel time slot corresponding number, multiplexed sub frame number etc.) to receiving element, and the indication receiving element receives corresponding multiplexed sub frame (channel);
Switch unit also is used for judging the current reproduction time section that whether is in this normal program according to time started value, duration value, if then carry out described switching; Otherwise, if consumer premise described normal program, then described user terminal be provided with one in the reproduction time section of described normal program overdue timer, and the channel that automatically switches to described normal program place when this timer expires plays, or the channel that the prompting user switches to described normal program place is play.
The playing programs unit is used to play the audio, video data of receiving element output; Above-mentioned audio, video data can be the data of normal program correspondence, also can be the program preview information of normal program correspondence.
Claims (8)
1, a kind ofly switches to the method for normal program, it is characterized in that this method comprises the steps: by previewing programs
A: user terminal receives and stores multiplexing allocation list and the multiplexed sub frame that comprises program preview information at mobile multimedia broadcasting channel, obtains the professional sequence number of the normal program corresponding with described program preview information in video flowing parameter set in the multiplexed sub frame head of program preview information correspondence and/or the audio stream parameter set; And use this business sequence number in multiplexing allocation list, to search corresponding multiplexed sub frame number;
B: when playing described program preview information, user terminal is play according to the channel that described multiplexed sub frame number switches to described normal program place.
2, the method for claim 1 is characterized in that,
In the steps A, described user terminal also obtains the time started value and the duration value of described professional sequence number correspondence in described video flowing parameter set and/or audio stream parameter set;
Among the step B, before the channel that switches to described normal program place, described user terminal is judged the current reproduction time section that whether is in this normal program according to described time started value and duration value, if then carry out described switching.
3, method as claimed in claim 2 is characterized in that,
Described user terminal also reads the previewing programs indication field in described video flowing parameter set and/or audio stream parameter set, and judges professional sequence number, time started and the duration value that whether comprises described normal program in this video flowing or the audio stream parameter set according to the previewing programs indicated value that reads.
4, method as claimed in claim 2 is characterized in that,
Among the step B, if according to described time started and the current reproduction time section that is not in described normal program of duration value judgement, and consumer premise described normal program, then described user terminal be provided with one in the reproduction time section of described normal program overdue timer of time started, and the channel that automatically switches to described normal program place when this timer expires plays, or plays according to the channel that user's indication switches to described normal program place.
5, a kind ofly switch to the device of normal program, comprise the playing programs unit, it is characterized in that this device also comprises: receiving element, multiplexed sub frame resolution unit, switch unit by previewing programs; Wherein:
Described receiving element is used for receiving and store multiplexing allocation list at mobile multimedia broadcasting channel, the switching signal that sends according to described switch unit receives corresponding multiplexed sub frame, the audio section in the multiplexed sub frame and/or video-frequency band data is sent to described playing programs unit play; And video flowing parameter set in the multiplexed sub frame and/or audio stream parameter set sent to described multiplexed sub frame resolution unit;
Described multiplexed sub frame resolution unit is used to receive video flowing parameter set and/or the audio stream parameter set that described receiving element sends, and from the video flowing parameter set of the program preview information correspondence of current broadcast and/or audio stream parameter set the professional sequence number of extraction and the output normal program corresponding with described program preview information;
Described switch unit is used to receive the described professional sequence number of described multiplexed sub frame resolution unit output, uses this business sequence number to search corresponding multiplexed sub frame number in multiplexing allocation list; And, indicate described receiving element to receive corresponding multiplexed sub frame to described receiving element transmission switching signal.
6, device as claimed in claim 5 is characterized in that,
Described multiplexed sub frame resolution unit also is used for from the video flowing parameter set of the program preview information correspondence of current broadcast and/or extraction of audio stream parameter set and output time started value and the duration value corresponding with the professional sequence number of described normal program;
Described switch unit also is used for judging the current reproduction time section that whether is in described normal program according to described time started value and duration value, if then send described switching signal before described receiving element sends switching signal.
7, device as claimed in claim 6 is characterized in that,
Described multiplexed sub frame resolution unit also is used for obtaining the previewing programs indication from described video flowing parameter set and/or audio stream parameter set, and judges professional sequence number, time started and the duration value that whether comprises described normal program in this video flowing or the audio stream parameter set according to the previewing programs indicated value.
8, device as claimed in claim 6 is characterized in that,
If described switch unit is judged the current reproduction time section that is not in described normal program according to described time started and duration value, and consumer premise described normal program, then be provided with one in the reproduction time section of described normal program overdue timer of time started, and when this timer expires, send described switching signal automatically, or send described switching signal according to user's indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810081846A CN100589571C (en) | 2008-05-08 | 2008-05-08 | Method and apparatus for switching from program preview to normal program |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810081846A CN100589571C (en) | 2008-05-08 | 2008-05-08 | Method and apparatus for switching from program preview to normal program |
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| CN101282465A CN101282465A (en) | 2008-10-08 |
| CN100589571C true CN100589571C (en) | 2010-02-10 |
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| CN200810081846A Expired - Fee Related CN100589571C (en) | 2008-05-08 | 2008-05-08 | Method and apparatus for switching from program preview to normal program |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102547377A (en) * | 2011-12-21 | 2012-07-04 | 深圳创维数字技术股份有限公司 | Method and device for transmitting video data to Set-top box |
| EP2975790B1 (en) | 2013-03-13 | 2019-02-20 | Mitsubishi Electric Corporation | Transmission device, reception device and communication system |
| CN103686409B (en) * | 2013-12-06 | 2017-12-12 | 乐视网信息技术（北京）股份有限公司 | The method and system that desktop background synchronously plays with live interface |
| CN105228034B (en) * | 2015-08-28 | 2019-01-18 | 华为软件技术有限公司 | program display method, terminal and system |
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