CN101883237A - 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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- CN101883237A CN101883237A CN 201010213779 CN201010213779A CN101883237A CN 101883237 A CN101883237 A CN 101883237A CN 201010213779 CN201010213779 CN 201010213779 CN 201010213779 A CN201010213779 A CN 201010213779A CN 101883237 A CN101883237 A CN 101883237A
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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 digital TV set-top box.
Background technology
Digital TV set-top box makes the user enjoy omnibearing information services such as video signal, amusement as user terminal, the utilization set-top box 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 Digital Television 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 digital TV set-top box, adopt the user of this method to control captions broadcast geographic coverage, channel scope, time range, broadcast round, the broadcast mode of broadcasting roll titles by set-top box, specific implementation 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, no longer roll, 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 digital TV set-top box, carry out according to the following steps: (1), the editor who adopts the caption editing tools to finish caption content, and the captions of text formatting are converted to the subtitle file of GIF picture format; Again the subtitle file of GIF picture format is uploaded to local data base or is saved in the corresponding container; Advertisement editing unit is from local data base or obtain the subtitle file of GIF picture format in the corresponding container, and the concrete placement position and the relevant information of the subtitle file of GIF picture format set for the 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 by multiplexer, and program streams of information is successively through scrambler, modulator, frequency mixer is connected to set-top box;
(2), advertisement editing unit sets geographic coverage, the channel scope that captions broadcast, the advertisement module in the set-top box is constantly decoded the program streams of information of receiving, obtains area or channel information that front end is set subtitle file; Set-top box 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 set-top box 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, if in showing time range, just do not stop the broadcast of captions, no matter whether finished the wheel number of broadcast;
(4) if, the continuous display mode of captions motion mode breakpoint, when the captions that show were interrupted, the coordinate of the captions during the advertisement module in the set-top box will be play was saved in the corresponding caption information, just begins demonstration from former coordinate when treating to show again;
(5), the broadcast mode of advertisement editing unit setting captions is the background subtitling mode, advertisement module in the set-top box is extracted zone or the background that captions show when the decoding caption information, it is copied in the buffer memory to blank space viewing area or background during captions to be shown before and after captions.
Caption information, EPG and digital television program send to set-top box through multiplexer, scrambler, modulator, frequency mixer successively, make set-top box 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 described copy editor's tools editor need broadcast is 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.
Described 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, by the advertisement module in the terminal set top box image data of subtitle file is therefrom separated, the captions picture of set-top box 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 of the present invention by ad system subtitle file playing flow path figure.
Fig. 2 is an ad system of the present invention area coupling flow chart.
Fig. 3 is that may command captions of the present invention show that time and broadcast round concern schematic diagram.
Fig. 4 a, Fig. 4 b are that breakpoint transmission pattern captions of the present invention and advertising area concern schematic diagram.
Embodiment
The invention will be further described in conjunction with the accompanying drawings.
Literal editing instrument, advertisement editing unit, advertisement are broadcast unit, gateway and electronic program guides (EPG) to make transmitting element, digital tv network, multiplexer scrambler, modulator, frequency mixer, set-top box all are to adopt existing mature technique and equipment among the present invention.
As shown in Figure 1, by ad system subtitle file playing flow path:
(1), the content of text that need broadcast by copy editor's tools editor, the subtitle file of textual form is converted into the subtitle file of GIF picture format, 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 is set the information coding for to 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 by multiplexer, and program streams of information is connected to set-top box 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 set-top box 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), set-top box 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 schematic diagram:
(a), the advertisement module in the set-top box 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 set-top box 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 the wheel 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 schematic diagram, 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 offset coordinates of captions integral body 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 present 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 calls and use the api function of transplanting interface, begins to show from former A point coordinates.
Claims (2)
1. roll titles control method based on digital TV set-top box, carry out according to the following steps: (1), the editor who adopts the caption editing tools to finish caption content, and the captions of text formatting are converted to the subtitle file of GIF picture format; Again the subtitle file of GIF picture format is uploaded to local data base or is saved in the corresponding container; Advertisement editing unit is from local data base or obtain the subtitle file of GIF picture format in the corresponding container, and the concrete placement position and the relevant information of the subtitle file of GIF picture format set for the 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 by multiplexer, and program streams of information is successively through scrambler, modulator, frequency mixer is connected to set-top box;
(2), advertisement editing unit sets geographic coverage, the channel scope that captions broadcast, set-top box 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 set-top box 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, if in showing time range, just do not stop the broadcast of captions, no matter whether finished the wheel number of broadcast;
(4), when the captions that show are interrupted, the coordinate of the captions during the advertisement module in the set-top box will be play is saved in the corresponding captions, just begins demonstration from former coordinate when treating to show again;
(5), the broadcast mode of advertisement editing unit setting captions is the background subtitling mode, advertisement module in the set-top box is extracted zone or the background that captions show when the decoding caption information, it is copied in the buffer memory to blank space viewing area or background during captions to be shown before and after captions.
2. the roll titles control method based on digital TV set-top box according to claim 1 is characterized in that: described 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 is set the information coding for.
Priority Applications (1)
| 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 CN101883237B (en) | 2012-08-22 |
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| CN113207003A (en) * | 2021-04-15 | 2021-08-03 | 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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| CN101883237B (en) | 2012-08-22 |
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