CN1992861A - Recording medium for storing subtitling data structure method for playing the subtitling data - Google Patents
Recording medium for storing subtitling data structure method for playing the subtitling data Download PDFInfo
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- CN1992861A CN1992861A CN 200510132781 CN200510132781A CN1992861A CN 1992861 A CN1992861 A CN 1992861A CN 200510132781 CN200510132781 CN 200510132781 CN 200510132781 A CN200510132781 A CN 200510132781A CN 1992861 A CN1992861 A CN 1992861A
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Abstract
The invention relates to a method for storing video program, caption data, recording medium, and playing the caption data, wherein said caption data comprises several single-word packages and background packages, while each single-word package has data to represent the initial time and end time of word, the x-y coordinate, x length, y length and color, pixel information; therefore, the caption data structure can show the storage capacity of caption data; when playing the caption data, reading the single-word packages stored in medium, via aforementioned information, to decide the display time on screen.
Description
Technical field
The present invention relates to a kind of recording medium of storage video frequency program and play the method for this video frequency program, and be particularly related to a kind of storage video frequency program subtitling data structure recording medium and play the method for the caption data of this video frequency program.
Background technology
In various store recording medium, CD has high power capacity, low cost with it and advantage such as carries easily, has been widely used in various fields.Its application comprises that data storing, music are listened to and film appreciation etc.In order to adapt to the characteristic of discs, and the reliability when increasing the discs data read, during prerecorded discs storage data, when run into coded data laser by high-power semiconductor laser when being 1 (775nm～795nm) the organic dyestuff recording surface of this CD directly heating burn data pits (Pit), and, then do not form data pits when running into coded data when being 0.
When CD player reads this CD with the laser of lower-wattage, because of data pits (Pit) has different reflectivity with original organic dyestuff recording surface, burnt the laser of its meeting absorption portion of place of data pits (Pit), and original surface does not absorb and reflector laser, and CD player is used the numerical data (promptly by 0 and 1 a succession of information of forming) with the different original codings of reflection results recasting.
The progress of present CD has been to use digital versatile disc, and (digital versatile disk, DVD), its storage volume has reached several GB to be enough to the movie program imprinting on this DVD.When the video program play of DVD, the curtain of setting up type also appears below screen simultaneously.And the way of these captions of known demonstration will be described below.Please refer to Figure 1A, it is the flow for displaying calcspar of known single captions.In fact, the broadcast of DVD is attached to the image of interior storage on the screen successively successively.For example, write down the single captions package that medium R1 reads corresponding word A and all the other blank certainly, and present decoding back captions image S1 at screen.Simultaneously,, and present 1 (its image comprises white clouds 2 and horse) of decoding rear backdrop image B, and captions image S1 and background image B1 overlap to form output image O1 through superimposed device M at screen again from writing down the background package A/V (Audio/Video) that medium R1 reads.Then please refer to Figure 1B, be the switching flow for displaying calcspar of known a plurality of captions.The wherein corresponding subtitling data structure on recording medium is shown in Figure 1B figure below.For example the reproduction time of individual character A is from t
AsBegin to t
AeFinish, this section period be called " display time interval " (presenting timestamp, PTS) and " display time interval " be stored in the header of image 1 package F-P1.Similarly, the reproduction time of individual character B is from t
BsBegin to t
BeFinish, and " display time interval " is stored in the header of image 2 package F-P2.Just shown in Figure 1A, the captions image S1 of known individual character A and decoding rear backdrop image B 1 are through the first output image O1 that overlaps to form of the first superimposed device M1.Then, time shaft is to t
Ae, by the first arrester E1 this first output image O1 is eliminated, and repeats the flow for displaying of another individual character B; Promptly from writing down the single captions package that medium read corresponding word B and all the other blank, and present decoding back captions image S2 and this decoding rear backdrop image B 1 the second output image O2 that overlaps to form through the second superimposed device M2 at screen.Yet, according to individual character B " display time interval " to t
BeFinish and disappear (carrying out), only export background image at last as the 3rd output image O3 by second arrester.Obviously illustrated by Figure 1B, this captions image S1 is identical with captions image S2, promptly in whole base map frame 1 (shown in dotted line), and all the other blank except individual character A or B.Because this clear area also needs blank pixel information encoding compression with this clear area of demonstration in DVD, so significantly increases the required capacity of medium (as DVD) storing subtitling.
In order to solve the problem of known technology, so be necessary to provide the player method of the caption data of a kind of medium of subtitling data structure of the storage video frequency program that can significantly reduce the required capacity of storing subtitling and this video frequency program.
Summary of the invention
One of the present invention purpose provide a kind of storage video frequency program subtitling data structure recording medium and play the method for the caption data of this video frequency program.Wherein the subtitling data structure of this video frequency program comprises a plurality of individual character packages and background package, and each individual character package has to comprise and has the initial of this individual character time of demonstration and finish, X of this individual character and Y coordinate, X length, the header of the length of Y and the information such as color of word, and the Pixel Information package that shows this individual character.The subtitling data structure of video frequency program can make recording medium save the required capacity of storing subtitling data by this.Simultaneously, when playing the caption data of this video frequency program, read this recording medium stored more than an individual character package, the information according to the initial and end of this individual character time of the demonstration in this header determines this individual character to be presented at the time of screen.
The present invention advance a purpose provide a kind of storage video frequency program subtitling data structure medium and play the method for the caption data of this video frequency program.Wherein, this subtitling data structure can be first language individual character data structure or second language individual character data structure.In other words, the present invention can provide the user to select the language subtitle of institute's desire demonstration.The present invention's subtitling data structure comprises first language individual character package, background package and second language individual character package.Wherein this first language individual character package comprises the initial and ending message of internal memory display time interval (PTS) and the screen display coordinate X of this first language individual character, the header of Y information, and the Pixel Information that shows this first language individual character; This second language individual character package comprises the initial and ending message of internal memory display time interval (PTS) and the screen display coordinate X of this second language individual character, the header of Y information, and the Pixel Information that shows this second language individual character.So the subtitling data structure by the present invention, can reach significantly save recording medium (as video disk, the VD) effect of the required capacity of storing subtitling.
The present invention's the purpose of more advancing provides a kind of by the method for above-mentioned subtitling data structure with the caption data of playing this video frequency program.At first will write down the Pixel Information and the header of this individual character of demonstration of each package of N the package that medium read certainly isolates; Then, the Pixel Information package of this individual character of demonstration of each package is stored in image data buffer successively, and the header of each package is stored in message buffer successively; Take out first pixel (i.e. first individual character) message packet and first header from this image data buffer; The start-up phase of the display time interval (PTS) in the system timing clock and first header is compared,,, first individual character is labelled on the screen then according to the information in this message buffer if system timing clock 〉=display time interval (PTS) is initial; If when the end of system timing clock=display time interval (PTS), then stop to show that by the Play Control formula this first individual character also continues to take out from this image data buffer the view data package of second individual character, and second individual character is labelled on the screen according to the corresponding informance in this message buffer.
State with other purpose, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Figure 1A is a kind of flow for displaying calcspar of known single captions.
Figure 1B is a kind of switching flow for displaying calcspar of known a plurality of captions.
Fig. 2 A is the flow for displaying calcspar according to the single captions of preferred embodiment of the present invention.
Fig. 2 B is the switching flow for displaying calcspar of a captions more than preferred embodiment of the present invention.
Fig. 3 is the subtitling data structure according to the store information program of preferred embodiment of the present invention.
Fig. 4 is image data buffer B1 with N Pixel Information PN and the message buffer B2 with N header HN.
The main element description of symbols
1. base map frame
2. white clouds
Embodiment
Please refer to Fig. 2 B, it discloses the recording medium according to the subtitling data structure of the store information program of preferred embodiment of the present invention, and this recording medium can be video disk, VD.The subtitling data structure of the video frequency program of this preferred embodiment comprises a plurality of individual character packages and background package, and each individual character package has to comprise and has the initial of this individual character time of demonstration and finish (presenting time stamp, PTS) header, and the Pixel Information package that shows this individual character.For easy to understand the present invention, the existing act with individual character A is example.The subtitling data structure of this recording medium comprises the Pixel Information package A-P of A individual character and comprises the header and the background package (A/V) of individual character display time interval (PTS).Then, please refer to Fig. 2 A, write down the single captions package that medium R1 ' reads corresponding word A and do not have the clear area certainly, and present decoding back captions image S1 ' (please noting the zone that its shared screen is very little) at screen.Simultaneously,, and present 1 ' (its image comprises white clouds 2 and horse) of decoding rear backdrop image B, and this captions image S1 ' and this background image B1 ' overlap to form output image O1 ' through superimposed device M at screen again from writing down the background package A/V that medium R1 ' reads.
Relatively Figure 1A and Fig. 2 A, as can be known according to the present invention the subtitling data structure of store information program will have the effect of the required recording medium capacity of the blank pixel information of saving this clear area of corresponding demonstration.When desire show different individual characters period appears and the time, please refer to Fig. 2 B, wherein figure displayed record medium such as VD under Fig. 2 B comprise the Pixel Information package A-P of A individual character and comprise the header of individual character display time interval (PTS) and the Pixel Information package B-P of background package (A/V) and B individual character and comprise the header of individual character display time interval (PTS).Countershaft can obviously illustrate in Fig. 2 B, this A individual character occur the period from t=tAs ' to t=tAe ', and this B individual character the period occurs from t=tBs ' to t=tBe ', thus A and B two individual characters occur simultaneously the period from t=tBs ' to t=tAe '.In other words, can show that individual character A image S1 ' and this background image B1 ' overlap to form output image O1 ' through superimposed device M1 from the screen.When time shaft during to t=tBs ' individual character B image S1 ' and this output image O1 ' overlapping and form second output image that occurs A and B two individual characters simultaneously shown in O2 ' through the second superimposed device M2.When time shaft arrived t=tAe ', individual character A was eliminated by first arrester and is disappeared, and only exports the 3rd output image O3 ' of individual character B again.Since individual character B occur the period from t=tBs ' to t=tBe ', therefore when time shaft arrived t=tBe ', individual character B was eliminated by second arrester and is disappeared, and only exports the background image of the 4th output image O4 ' at last.
Compare with known DVD subtitling data structure, the Pixel Information that the present invention only comprises A and B individual character because of the Pixel Information package B-P of the Pixel Information package A-P of A individual character and B individual character does not need respective pixel information encoding compression with the residue clear area in the base map frame 1 in recording medium, so can significantly reduce the required capacity of recording medium (as VD) storing subtitling.
A and B two individual characters among Fig. 2 B are also applicable when providing the multilingual captions when recording medium simultaneously, then its subtitling data structure comprises first language individual character package (it is equivalent to individual character A package), background package A/V and second language individual character package (it is equivalent to individual character B package), then the data structure of Fig. 2 B becomes Fig. 3.Please refer to Fig. 3, wherein this first language individual character package comprises the screen display coordinate X of the initial of internal memory display time interval (PTS) and 0 information of end and this first language individual character, the header of Y information, and the Pixel Information package C-P1 that shows this first language individual character; This second language individual character package comprises the initial and ending message of internal memory display time interval (PTS) and the screen display coordinate X of this second language individual character, the header of Y information, and the Pixel Information package C-P2 that shows this second language individual character.
If the user for example, has selected first language (as Chinese) captions, when then recording medium was play, the controls playing program then only read first language individual character package and its Pixel Information package C-P1 is decoded, to show that the first language individual character is on screen.Because the Pixel Information of the present invention's the first language individual character package only Pixel Information of this first language individual character does not need respective pixel information encoding compression with the residue clear area in the base map frame 1 in recording medium; Similarly, second language individual character package also is like this.So the also more known person of subtitling data structure of the present invention's changeable multilingual captions significantly reduces the required capacity of recording medium (as VD) storing subtitling.So the subtitling data structure by the present invention can reach the effect that significantly reduces the required capacity of recording medium (as VD) storing subtitling.
The present invention provides a kind of method of caption data of broadcast recording medium video frequency program again.This method comprises: at first will write down N the individual character package that medium read successively certainly, and read simultaneously also successively the Pixel Information package and the header of this individual character of demonstration of each individual character package are isolated; Then, as shown in Figure 4, will be stored in the image data buffer B1 successively by the Pixel Information package of this individual character of the demonstration of separation successively and be numbered the first Pixel Information package P1, the second Pixel Information package P2... one be until N Pixel Information package PN.And the quilt header of separation successively is stored in the message buffer B2 successively and is numbered the first header H1, the second header H2... one is until H header HN, wherein header comprises initial (PTS-S) and ending message (PTS-E) of display time interval (PTS), the screen display coordinate X of this individual character, Y (x, y) information, X length (XL), the Show Color information such as (C) of Y length (YL) and this individual character.
Then, this image data buffer takes out the first Pixel Information package P1 (promptly including the pixel of first individual character) and first header certainly; The start-up phase of the display time interval (PTS) that the system timing clock (being the system clock of recording medium player) and first header is interior relatively, initial (the representing that promptly the recording medium broadcast is still underway) if of system timing clock 〉=display time interval (PTS), then, first individual character is labelled on the screen according to the information in this message buffer; If when the end of system timing clock=display time interval (PTS), then stop to show this first individual character by the Play Control formula; Repeat previous step then, make on the second individual character display screen, until till on the N individual character display screen.
In sum, the more known person of this case has following advantage:
1. compare with known DVD subtitling data structure, because of the Pixel Information of each individual character in the subtitling data structure of the present invention's video frequency program does not comprise the respective pixel information of the residue clear area in the base map frame, so can significantly reduce the required capacity of recording medium (as VD) storing subtitling.
2. in the subtitling data structure of the changeable multilingual captions of recording medium and since the Pixel Information of the present invention's first language individual character package only the Pixel Information of this first language individual character do not need respective pixel information encoding compression with the residue clear area in the base map frame in recording medium.So the also more known person of subtitling data structure of the present invention's changeable multilingual captions significantly reduces the required capacity of recording medium (as VD) storing subtitling.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection range is as the criterion when looking the claim person of defining.
Claims (8)
1. recording medium that stores the subtitling data structure of video frequency program is characterized in that this subtitling data structure comprises:
A plurality of individual character packages, wherein each individual character package has the header that comprises the initial and end with this individual character time of demonstration, and the Pixel Information package that shows this individual character; And
The background package shows that by this Pixel Information package of this individual character does not comprise the respective pixel information that shows the residue clear area in the base map frame, to reach the effect that significantly reduces medium storing subtitling data desired volume.
2. according to the recording medium of the subtitling data structure of the described storage video frequency program of claim 1, it is characterized in that these medium are Photo CD.
3. according to the recording medium of the subtitling data structure of the described storage video frequency program of claim 1, it is characterized in that this header also and then comprise the screen display coordinate X of this individual character, Y information, X length, the Show Color information of Y length and this individual character.
4. the recording medium of the subtitling data structure of changeable bilingual captions that store video frequency program is characterized in that this subtitling data structure comprises:
First language individual character package, it comprises the initial and ending message of internal memory display time interval and the screen display coordinate X of this first language individual character, the header of Y information, and the Pixel Information that shows this first language individual character;
The background package;
Second language individual character package, it comprises the initial and ending message of internal memory display time interval and the screen display coordinate X of this second language individual character, the header of Y information, and the Pixel Information that shows this second language individual character.
5. according to the recording medium of the subtitling data structure of the changeable bilingual captions of the described storage video frequency program of claim 4, it is characterized in that this recording medium is Photo CD.
6. according to the recording medium of the subtitling data structure of the changeable bilingual captions of the described storage video frequency program of claim 4, it is characterized in that this header also and then comprise this X length, the Show Color information of this Y length and this individual character.
7. a broadcast has the method for recording medium of the caption data of video frequency program, it is characterized in that comprising:
N the individual character package that reads successively from this recording medium, and successively the Pixel Information package and the header of this individual character of demonstration of each individual character package are isolated simultaneously;
To be stored in image data buffer successively and be numbered the first Pixel Information package by the Pixel Information package of this individual character of the demonstration of separation successively, the second Pixel Information package ... one until N Pixel Information package, and the quilt header of separation successively is stored in the message buffer successively and is numbered first header, and the second header H2... one is until the H header;
Take out the first Pixel Information package (promptly including the Pixel Information of first individual character) and first header from this image data buffer;
The start-up phase of the display time interval (PTS) in the system timing clock and first header is compared,,, first individual character is labelled on the screen then according to the information in this message buffer if system timing clock 〉=display time interval (PTS) is initial; When the system timing clock equals the end of display time interval, then stop to show this first individual character by the Play Control formula; And
Repeat previous step then, make on the second individual character display screen, until till on the N individual character display screen.
8. the method according to claim 7 is characterized in that header comprises the initial and ending message of display time interval, the screen display coordinate X of this individual character, Y information, X length, the information such as Show Color of Y length and this individual character.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132781 CN1992861A (en) | 2005-12-26 | 2005-12-26 | Recording medium for storing subtitling data structure method for playing the subtitling data |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132781 CN1992861A (en) | 2005-12-26 | 2005-12-26 | Recording medium for storing subtitling data structure method for playing the subtitling data |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489052B (en) * | 2008-01-14 | 2010-12-01 | 中国网通集团宽带业务应用国家工程实验室有限公司 | Subtitle data processing method and apparatus |
| CN102014258B (en) * | 2009-09-07 | 2013-01-16 | 艾比尔国际多媒体有限公司 | Multimedia caption display system and method |
| WO2015089746A1 (en) * | 2013-12-17 | 2015-06-25 | Intel Corporation | Techniques for processing subtitles |
| CN106652983A (en) * | 2016-09-18 | 2017-05-10 | 福建网龙计算机网络信息技术有限公司 | Subtitling method and subtitling system |
| WO2017157168A1 (en) * | 2016-03-18 | 2017-09-21 | 中兴通讯股份有限公司 | Method, terminal, system and computer storage medium for video calling |
-
2005
- 2005-12-26 CN CN 200510132781 patent/CN1992861A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489052B (en) * | 2008-01-14 | 2010-12-01 | 中国网通集团宽带业务应用国家工程实验室有限公司 | Subtitle data processing method and apparatus |
| CN102014258B (en) * | 2009-09-07 | 2013-01-16 | 艾比尔国际多媒体有限公司 | Multimedia caption display system and method |
| WO2015089746A1 (en) * | 2013-12-17 | 2015-06-25 | Intel Corporation | Techniques for processing subtitles |
| US9800801B2 (en) | 2013-12-17 | 2017-10-24 | Intel Corporation | Techniques for processing subtitles |
| WO2017157168A1 (en) * | 2016-03-18 | 2017-09-21 | 中兴通讯股份有限公司 | Method, terminal, system and computer storage medium for video calling |
| CN107205131A (en) * | 2016-03-18 | 2017-09-26 | 中兴通讯股份有限公司 | A kind of methods, devices and systems for realizing video calling |
| CN106652983A (en) * | 2016-09-18 | 2017-05-10 | 福建网龙计算机网络信息技术有限公司 | Subtitling method and subtitling system |
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