CN101883237B - Roll titles control method based on digital television STB (Set Top Box) - Google Patents
Roll titles control method based on digital television STB (Set Top Box) Download PDFInfo
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- CN101883237B CN101883237B CN2010102137797A CN201010213779A CN101883237B CN 101883237 B CN101883237 B CN 101883237B CN 2010102137797 A CN2010102137797 A CN 2010102137797A CN 201010213779 A CN201010213779 A CN 201010213779A CN 101883237 B CN101883237 B CN 101883237B
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Abstract
The invention relates to a roll titles control method based on a digital television STB, which comprises the following steps that continuously receiving program information flows sent by front-end equipment by the STB, and analyzing and judging whether the current program area is matched with the area information of a titles file; if the current program area is matched with the area information, carrying out channel matching, and if the current program area is not matched with the area information, not receiving data; then comparing acquired EPG (Electronic Program Guide) time with set time displayed by the titles, and displaying the titles if the acquired EPG time is within the set time range; after each round is displayed, subtracting set round number by 1 until all rounds are displayed; and stopping the titles to be played if the acquired EPG time is not within the display time range; the titles information of each time slot is displayed on a screen on time; when the displayed titles are interrupted, an advertisement module saves the coordinates of the played titles to the corresponding titles, and the titles are displayed from the original coordinates when being required to be redisplayed. Users adopting the method can control the area range, the channel range, the time range and the playing round of the roll titles played through the STB.
Description
Technical field
The present invention relates to the digital television techniques field, relate in particular to a kind of roll titles control method based on DTV STB.
Background technology
DTV STB makes the user enjoy omnibearing information services such as video signal, amusement as user terminal, the utilization STB in program broadcast process the display scrolling captions not only information is outstanding, and audient's face is contained extensively; At present, on the market DTV captions broadcast mode mainly be with subtitle superposition to TV program stream, captions have become the part of TV program stream.
Summary of the invention
The purpose of this invention is to provide a kind of roll titles control method based on DTV STB; The user of employing this method can control captions broadcast geographic coverage, channel scope, time range, broadcast round, the broadcast mode of broadcasting roll titles through STB, and concrete the realization thes contents are as follows: 1, the geographic coverage of may command captions broadcast; 2, the channel scope of may command captions broadcast; 3, the time range of may command captions broadcast, captions show on time that in the time started that the user is provided with the concluding time finishes on time; 4, the may command captions rolling broadcasts round; 5, the broadcast of captions can be adopted continuous display mode of breakpoint or the continuous display mode of background breakpoint; Continuous apparent not being meant when the whole piece captions show of so-called breakpoint carried out button operation when finishing; Program is switched; Cause captions to disappear, captions continue to begin to show rather than from the beginning show from interrupted position when the former captions broadcasting channel of switchback; Does not move in the continuous apparent captions rolling zone (background) that is meant of so-called background breakpoint, has only captions to move, and be the continuous display mode of breakpoint; 6, the broadcast mode of captions can adopt the background subtitling mode; So-called background captions are meant first roll titles zone or background; Treat that captions zone or background take that captions begin to roll behind the whole advertisement position; And caption area or background are no longer rolled, and the whole piece captions show finish back caption area or background end demonstration.The present invention has realized separating of subtitle file and audio frequency and video, subtitle file is broadcasted separately, and synthesize at the subtitle file of STB terminal to different control modes, makes the broadcast of captions have good flexibility.
For realizing that above purpose the present invention adopts following technical scheme:
A kind of roll titles control method based on DTV STB, carry out according to the following steps: (1), adopt the caption editing tools to accomplish the editor of caption content, and convert the captions of text formatting the subtitle file of GIF picture format into; Again the subtitle file of GIF picture format is uploaded to local data base or is saved in the corresponding container; The subtitle file of GIF picture format is obtained in advertisement editing unit from local data base or in the corresponding container; And the concrete placement position and the relevant information of the subtitle file of GIF picture format carried out the setting of information coding; And the information of setting is weaved into data flow be sent to advertisement and broadcast the unit; Advertisement is broadcast the unit and is sent to multiplexer through gateway and electronic program guides (EPG) making transmitting element; The subtitle file of GIF picture format and the digital television program of digital tv network form a program streams of information that has caption information through multiplexer, and program streams of information is connected to STB through scrambler, modulator, frequency mixer successively;
(2), advertisement editing unit sets geographic coverage, the channel scope that captions broadcast, STB judges at first that when receiving data whether current program area is complementary with the regional information of subtitle file; Then do not receive the subtitle file data if be not complementary; Then receive the subtitle file data if be complementary, when showing captions, carry out the channel coupling again,, otherwise just do not show if channel is complementary and just shows subtitle file;
(3), advertisement editing unit sets captions and broadcasts round, when each take turns show finish after, the wheel number of setting subtracts 1, shows up to all wheel digital displays to finish; Advertisement module in the STB is constantly decoded the program streams of information of receiving; Constantly obtain the setting-up time of EPG time, captions demonstration; The setting-up time of EPG time and captions demonstration is compared; If the EPG time just shows captions in the setting-up time scope that captions show,, do not consider to accomplish whether the wheel number of broadcast if in showing time range, just do not stop the broadcast of captions; Wherein the EPG time is meant the current time information that from program streams of information, obtains in " TDT Time and Date Table (TDT) " or " TOT Time Offset Table (TOT) ": what time somewhat several seconds;
(4), when the captions that show are interrupted, the coordinate information that play captions this moment is saved in the STB internal memory; Coordinate parameters when just from internal memory, obtaining the captions interruption when treating to show again begins to show from the coordinate that interrupts;
(5), the broadcast mode of advertisement editing unit setting captions is the background subtitling mode; Advertisement module in the STB is extracted concrete placement position or the background that captions show when the decoding caption information; It is copied in the buffer memory, and the blank space during captions to be shown before and after captions shows concrete placement position or background.
Said advertisement editing unit will comprise following content: geographic coverage, channel scope, time range, advertisement position, captions rolling mode be from right to left or from bottom to up, broadcast round, the continuous motor pattern that shows of breakpoint carries out the setting of information coding.
Caption information, EPG and digital television program send to STB through multiplexer, scrambler, modulator, frequency mixer successively; Make STB constantly receive the program streams of information that caption information is arranged; And resolve, make punctual being presented on the screen of captions that comprises temporal information.
The content of text that said copy editor's tools editor need broadcast is converted into the subtitle file of GIF picture format to the subtitle file of textual form, and the subtitle file of GIF picture format is uploaded to local data base or to corresponding container.
Said advertisement editing unit will comprise following content: captions broadcast geographic coverage, channel scope, time range, advertisement position, captions rolling mode and are from right to left or from bottom to up, broadcast that round, background captions, breakpoint continuously show, the continuous motor pattern that shows of background breakpoint is set the information coding for.
The present invention has the following advantages: 1, the geographic coverage of may command captions broadcast; The channel scope that 2 may command captions broadcast; 3, the time range of may command captions broadcast, captions show on time that in the time started that the user is provided with the concluding time finishes on time; 4, the may command captions rolling broadcasts round; 5, the broadcast of captions can be adopted breakpoint transmission pattern or background breakpoint transmission; So-called breakpoint transmission is not meant when the whole piece captions show carries out button operation when finishing; Program is switched; Cause captions to disappear, captions continue to begin to show rather than from the beginning show from interrupted position when the former captions broadcasting channel of switchback; Continuous apparent captions rolling zone or the background of being meant of so-called background breakpoint do not move, and has only captions to move, and is the continuous display mode of breakpoint.6, the broadcast of captions can be adopted the background subtitling mode; So-called background captions are meant first roll titles zone or background; Treat that captions zone or background take that captions begin to roll behind the whole advertisement position; And caption area or background are no longer rolled, and the whole piece captions show finish back caption area or background end demonstration.
The present invention also is in the same place the captions picture file through overcompression with the audio, video data of program is multiplexing; Therefrom separate the image data of subtitle file by the advertisement module in the terminal set top box; The captions picture of STB after with decompress(ion) directly is presented on the screen; Therefore, do not having to send subtitle file equally under the situation of program stream.
Description of drawings
Fig. 1 is according to the invention through ad system subtitle file playing flow path figure.
Fig. 2 is an ad system according to the invention area coupling flow chart.
Fig. 3 is that may command captions according to the invention show that time and broadcast round concern sketch map.
Fig. 4 a, Fig. 4 b are that breakpoint transmission pattern captions according to the invention and advertising area concern sketch map.
Embodiment
In conjunction with accompanying drawing the present invention is done further description.
Unit, gateway and electronic program guides (EPG) are broadcast in Chinese words editing instrument of the present invention, advertisement editing unit, advertisement, and to make transmitting element, digital tv network, multiplexer scrambler, modulator, frequency mixer, STB all be to adopt existing mature technique and equipment.
As shown in Figure 1, through ad system subtitle file playing flow path:
(1), the content of text that need broadcast through copy editor's tools editor, be converted into the subtitle file of GIF picture format to the subtitle file of textual form, the subtitle file of GIF picture format is uploaded to local data base or to corresponding container; From then on the subtitle file of the GIF picture format in the following step (2) for obtaining in database or the corresponding container;
(2), utilization advertisement editing unit carries out the setting of information coding with the concrete placement position and the relevant information of the subtitle file of GIF picture format; Concrete placement position and relevant information: comprise advertisement position, captions rolling mode (from bottom to up from right to left), begin the demonstration time, finish the demonstration time, broadcast round, motor pattern (breakpoint is continuous to be shown, the background breakpoint is continuous shows); And the information of setting is weaved into data flow be sent to the described advertisement of step (3) and broadcast the unit;
(3), advertisement is broadcast the unit and is delivered to multiplexer through gateway and electronic program guides (EPG) making transmitting element; The subtitle file of GIF picture format and the digital television program of digital tv network form a program streams of information that has caption information through multiplexer, and program streams of information is connected to STB through scrambler, modulator, frequency mixer successively.
As shown in Figure 2, ad system area coupling flow chart:
Geographic coverage, the channel scope that captions broadcast set in advertisement editing unit; Advertisement module in the STB is constantly with the program streams of information that receives index.dat file just; And judge whether to receive; If just receive the index.dat file that receives is decoded, obtain area or channel information that front end is set subtitle file; Otherwise just continue the program receiving information flow;
(a), STB judges at first that when receiving data whether current program area is complementary with the regional information of subtitle file;
(b), then do not receive the subtitle file data if be not complementary;
(c), if be complementary and then receive the subtitle file data, when showing captions, carry out the channel coupling again, if channel is complementary and just shows subtitle file, otherwise just do not show.
As shown in Figure 3, a kind of may command captions show that time and broadcast round concern sketch map:
(a), the advertisement module in the STB constantly decodes the program streams of information of receiving, constantly obtain EPG time and captions and show the time;
(b), EPG time and captions demonstration time are compared, judge that the EPG time is whether in captions show time range, if in captions show time range, then show captions;
(c), if not in captions show time range, judge then captions show whether the time arrive, if show that time is up, promptly captions begin to show that time is up, then repeating step (b);
(d), if not in captions show time range, and captions show that the time do not arrive, promptly the EPG time has surpassed the captions concluding time, then stops captions and broadcasts, and recovers background, captions show and finish;
(e), when captions show in showing time range, the advertisement module in the STB is obtained captions and is shown round, each is taken turns and shows and finish, total wheel number originally subtracts 1, takes turns digital display up to all and shows and finish; When captions wheels digital display shows that when finishing, captions stop to broadcast; When showing, captions wheels number do not continue to judge that EPG time and captions show the time when finishing, no matter to finishing to take turns number and whether finishing the broadcast that all stops captions.
Shown in Fig. 4 a, Fig. 4 b, for breakpoint transmission pattern captions and advertising area concern sketch map, highly big Regional Representative's advertisement position among two width of cloth figure, highly less Regional Representative's captions picture.There is one to represent captions can show part in the advertisement position.On behalf of captions, the x among Fig. 4 a can show the part offset coordinates of advertisement position relatively; On behalf of captions, the x among Fig. 4 b can show the part whole offset coordinates of captions relatively.Among Fig. 4 a, along with captions constantly move to left, x reduces, and the width that captions can show part constantly becomes big; Among Fig. 4 b, along with captions constantly move to left, x increases, and the width that captions can show part constantly reduces.System constantly sends timed message, obtains captions and can show partial parameters, and preserve the A point coordinates; When captions move, obtain the captions parameter at every turn and constantly change, the A point coordinates of preservation also constantly changes; Captions can show part also to be changed thereupon, and what show is exactly the captions moving images.When the captions of playing are interrupted, can preserve A point coordinates in can showing partly among Fig. 4 a, when treating to show again, system obtains the overlapping region parameter of (can show part), and the api function of calling application transplanting interface, begins to show from former A point coordinates.
Claims (2)
1. roll titles control method based on DTV STB, carry out according to the following steps: (1), adopt the caption editing tools to accomplish the editor of caption content, and convert the captions of text formatting the subtitle file of GIF picture format into; Again the subtitle file of GIF picture format is uploaded to local data base or is saved in the corresponding container; The subtitle file of GIF picture format is obtained in advertisement editing unit from local data base or in the corresponding container; And the concrete placement position and the relevant information of the subtitle file of GIF picture format carried out the setting of information coding; And the information of setting is weaved into data flow be sent to advertisement and broadcast the unit; Advertisement is broadcast the unit and is sent to multiplexer through gateway and electronic program guides (EPG) making transmitting element; The subtitle file of GIF picture format and the digital television program of digital tv network form a program streams of information that has caption information through multiplexer, and program streams of information is sent to STB through scrambler, modulator, frequency mixer successively;
(2), advertisement editing unit sets geographic coverage, the channel scope that captions broadcast, STB judges at first that when receiving data whether current program area is complementary with the regional information of subtitle file; Then do not receive the subtitle file data if be not complementary; Then receive the subtitle file data if be complementary, when showing captions, carry out the channel coupling again,, otherwise just do not show if channel is complementary and just shows subtitle file;
(3), advertisement editing unit sets captions and broadcasts round, when each take turns show finish after, the wheel number of setting subtracts 1, shows up to all wheel digital displays to finish; Advertisement module in the STB is constantly decoded the program streams of information of receiving; Constantly obtain the setting-up time of EPG time, captions demonstration; The setting-up time of EPG time and captions demonstration is compared; If the EPG time just shows captions in the setting-up time scope that captions show,, do not consider to accomplish whether the wheel number of broadcast if in showing time range, just do not stop the broadcast of captions; Wherein the EPG time is meant the current time information that from program streams of information, obtains in " TDT Time and Date Table (TDT) " or " TOT Time Offset Table (TOT) ": what time somewhat several seconds;
(4), when the captions that show are interrupted, the coordinate information that play captions this moment is saved in the STB internal memory; Coordinate parameters when just from internal memory, obtaining the captions interruption when treating to show again begins to show from the coordinate that interrupts;
(5), the broadcast mode of advertisement editing unit setting captions is the background subtitling mode; Advertisement module in the STB is extracted concrete placement position or the background that captions show when the decoding caption information; It is copied in the buffer memory, and the blank space during captions to be shown before and after captions shows concrete placement position or background.
2. the roll titles control method based on DTV STB according to claim 1 is characterized in that: said advertisement editing unit will comprise following content: geographic coverage, channel scope, time range, advertisement position, captions rolling mode be from right to left or from bottom to up, broadcast round, the continuous motor pattern that shows of breakpoint carries out the setting of information coding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102137797A CN101883237B (en) | 2010-06-22 | 2010-06-22 | Roll titles control method based on digital television STB (Set Top Box) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102137797A CN101883237B (en) | 2010-06-22 | 2010-06-22 | Roll titles control method based on digital television STB (Set Top Box) |
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| CN101883237B true CN101883237B (en) | 2012-08-22 |
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| CN2010102137797A Expired - Fee Related CN101883237B (en) | 2010-06-22 | 2010-06-22 | Roll titles control method based on digital television STB (Set Top Box) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106060634A (en) * | 2016-05-31 | 2016-10-26 | 乐视控股（北京）有限公司 | Method and device for displaying rolling subtitles |
| CN113207003B (en) * | 2021-04-15 | 2023-01-24 | 上海顺久电子科技有限公司 | Motion estimation method of video image and electronic equipment |
| CN113810756A (en) * | 2021-09-22 | 2021-12-17 | 上海亨谷智能科技有限公司 | Intelligent set top box main screen desktop display system |
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| CN1343418A (en) * | 1999-02-08 | 2002-04-03 | 联合视频制品公司 | Electronic program guide with support for rich program content |
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| CN101005640A (en) * | 2006-09-30 | 2007-07-25 | 丰达软件（苏州）有限公司 | Method for text information changing into stream medium or multimedia then received by terminal |
| CN101159756A (en) * | 2007-11-05 | 2008-04-09 | 华为技术有限公司 | Outdoor advertisement service implementing method, device and system |
| CN101212598A (en) * | 2006-12-29 | 2008-07-02 | 深圳市同洲电子股份有限公司 | Method for displaying electronic program guide information |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0016958D0 (en) * | 2000-07-12 | 2000-08-30 | Pace Micro Tech Plc | Television system |
| CN100469109C (en) * | 2006-06-13 | 2009-03-11 | 中国科学院计算技术研究所 | Automatic translation method for digital video captions |
| CN100420268C (en) * | 2006-07-07 | 2008-09-17 | 天栢宽带网络科技（上海）有限公司 | Message informing method and system for substituting traditional caption technology |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343418A (en) * | 1999-02-08 | 2002-04-03 | 联合视频制品公司 | Electronic program guide with support for rich program content |
| CN1878248A (en) * | 2006-04-03 | 2006-12-13 | 深圳创维－Rgb电子有限公司 | Caption file making method and playing method for the same |
| CN101005640A (en) * | 2006-09-30 | 2007-07-25 | 丰达软件（苏州）有限公司 | Method for text information changing into stream medium or multimedia then received by terminal |
| CN101212598A (en) * | 2006-12-29 | 2008-07-02 | 深圳市同洲电子股份有限公司 | Method for displaying electronic program guide information |
| CN101159756A (en) * | 2007-11-05 | 2008-04-09 | 华为技术有限公司 | Outdoor advertisement service implementing method, device and system |
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