CN1892864A - High-density CD data formation method and dialogue caption playing method using same and apparatus - Google Patents
High-density CD data formation method and dialogue caption playing method using same and apparatus Download PDFInfo
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- CN1892864A CN1892864A CN 200510027445 CN200510027445A CN1892864A CN 1892864 A CN1892864 A CN 1892864A CN 200510027445 CN200510027445 CN 200510027445 CN 200510027445 A CN200510027445 A CN 200510027445A CN 1892864 A CN1892864 A CN 1892864A
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Abstract
The invention is related to method for forming files in blue optical disk in equal high density as well as method and equipment for playing white subtitles by using the said method for forming files. Characters of the invention are as followings: being relevant to main AV data stream, data streams of multiple white subtitles are distinguished to independent files; the invention saves main AV data stream, and the said independent files; the invention saves seamless information of white subtitles for informing how to change data stream of multiple white subtitles seamlessly. The invention is capable of carrying out seamless change for white subtitles stored in optical disk so as to play back white subtitles in optical disk in high density effectively.
Description
[technical field]
The invention relates to the constructive method that comprised the broadcast information file that is used for effectively playing master data that CD stores and auxiliary data.Specifically, the invention relates to the document forming method of Blu-ray disc high density compact discs such as (Blu-ray Disc) and utilize its spolen title player method and equipment thereof.
[background technology]
As the optical storage media that can store Large Volume Data, CD is widely used.This wherein also comprises the novel high-density optical storage media (HD-DVD) that can store a large amount of high image quality voice datas and video data recently for a long time, and for example, Blu-ray disc (Blu-ray Disc below is referred to as " BD ") etc. is developed.Blu-ray disc (BD) as HD-DVD technology of new generation is the optical storage solution of new generation that can significantly improve existing DVD storage data capacity.Recently, it is together concluded the world standard technology type with other digital device.
Relevant therewith, the exploitation of using the optical storage playback equipment of Blu-ray disc (BD) specification has also begun.But up to the present, Blu-ray disc (BD) specification is imperfection also, and it is very difficult wanting to develop perfect optical storage playback equipment.
Specifically, in order effectively to play the data of being stored in the above-mentioned Blu-ray disc (BD), the various data that provide main AV data and the auxiliary data that is associated with main AV data, spolen title information etc. to facilitate for the user not only are provided, but also the information that master data that must systematically be provided for playing in the CD and stored and auxiliary data are associated.But, because in existing Blu-ray disc (BD) specification, the unified specification item and the imperfection of above-mentioned auxiliary data, particularly spolen title, the exploitation of formal optical storage playback equipment based on Blu-ray disc (BD) also exists a lot of limiting factors.This plays change providing to the user between a plurality of spolen titles, and problem was particularly outstanding when seamless change particularly was provided.
[summary of the invention]
For addressing the above problem, the present invention just arises at the historic moment.The purpose of this invention is to provide the document forming method of Blu-ray disc high density compact discs such as (BD) and utilize its spolen title player method and equipment thereof, this technical problem is as follows:
Main AV data stream and a plurality of spolen title data stream relevant with main AV data stream are divided into independently file and are stored, the seamless information of spolen title that is used for the seamless change between above-mentioned a plurality of spolen title data stream is stored, and pass through the method, seamless information is provided, the spolen title of CD stored is carried out seamless change, thereby can realize broadcast the effective spolen title of high density compact disc.
To achieve these goals, as follows according to the document forming method of high density compact disc of the present invention: main AV data stream and a plurality of spolen title data stream relevant with main AV data stream are divided into independently file and are stored, and the seamless information of spolen title that is used for the seamless change between above-mentioned a plurality of spolen title data stream is stored.
Simultaneously, as follows according to the spolen title player method of high density compact disc of the present invention: read the fileinfo of the CD that is moving, the fileinfo with reference to having read comes CD is play.In this process, if there is user's change spolen title order, just read out the seamless information in the above-mentioned fileinfo, according to the seamless information that is read out, it is after changing seamless whether affirmation can be carried out, and only the spolen title of confirming to change carried out seamless play.
Simultaneously, can also be as follows according to the spolen title player method of high density compact disc of the present invention: read the fileinfo of the CD that is moving, the fileinfo with reference to having read comes CD is play.In this process, if there is user's change spolen title request, just read out the seamless information in the above-mentioned fileinfo, and according to the seamless information that is read out, after confirming to be used for the needed buffer sizes of seamless change, under situation, just carry out the spolen title seamless play with associated buffer size.
Simultaneously, has the feature that constitutes by following each several part according to high density compact disc storage playback devices of the present invention: memory unit that the spolen title data that play out and seamless information are carried out preload and the control device that following process is controlled: if there is the seamless change request of user's spolen title from the operation CD, whether can carry out after changing seamless in affirmation, just from above-mentioned memory unit, in the seamless information of spolen title of temporary transient storage, only the spolen title that allows to carry out seamless change is carried out the seamless change broadcast of spolen title.
Below, with reference to the accompanying drawings to being elaborated according to desirable embodiment such as high density compact disc document forming methods of the present invention.Simultaneously, need to prove, employed in the present invention term all is present widely used general term, under specific circumstances, also there is the optional term of inventor, in this case, because the related description part in invention has been described in detail its meaning, therefore, not only grasp the present invention by the title of term merely, and should grasp the present invention from the practical significance of this term.
Relevant therewith, the meaning of employed in the present invention " master data " is meant title (Title) information of being stored in the CD, image that disc making person (Author) provides to the user and voice data etc.At least possess more than one title in the CD, in general, it is stored with the MPEG2 form, and this is called as " main AV data stream ".
Simultaneously, " auxiliary data " is meant when playing above-mentioned " master data ", for all data relevant with master data that provide to the user are provided conveniently.At this comprising following content: spolen title information, interactive graphical data flow, note graphical data flow, menu information, magic lantern type browse displays audio-frequency information etc.
According to the character of each auxiliary data, become owner of in the AV data stream with the compound multichannel of MPEG2 form (multiplexing) storage, perhaps be stored into and AV data stream mutually in the independent data stream file with MPEG2 form or other form.
Simultaneously, in the present invention, the meaning as " spolen title " of auxiliary data is as follows: as a kind of caption information, if the user thinks to watch simultaneously present in progress image (main AV data) and language-specific captions, if the relational language spolen title in the spolen title of having selected to be provided in the CD is illustrated in the shown information of picture one side.Therefore, spolen title can be stored with multiple form, and it promptly can transmit (TS with MPEG2; TransPort) form of packets of information (packet) is stored, and also can store with the binary format of bitmap (Bit-map) form, perhaps stores with the form of text data (Text data).Particularly the spolen title of storing with the text data form is called as " text subtitle (Text Subtitle) ".In the present invention, in Blu-ray disc (BD), be associated, the language-specific spolen title of auxiliary data is provided, have a plurality of respectively according to the difference of various language with a title.If play change between above-mentioned a plurality of spolen titles of storing, just " seamless change " or " bumpless transfer (switching) " can be provided to the user.File structure in CD just can provide multiple seamless information.
The document forming method of foundation high density compact disc of the present invention and player method and storage playback devices have the following advantages: by the seamless information that can be easy to realize the seamless change of the spolen title of storing in the CD is provided, can play the effectively auxiliary title of high density compact disc.
[description of drawings]
What Fig. 1 was shown is according to high density compact disc file structure figure of the present invention.
Fig. 2 is that summary shows according to high density compact disc value storage aspect graph of the present invention.
Fig. 3 is that summary shows according to spolen title broadcast management file structure figure of the present invention.
What Fig. 4 a and Fig. 4 b were shown is according to the seamless change instance graph of spolen title of the present invention.
What Fig. 5 and Fig. 6 were shown is the sentence structure (syntax) of the seamless message file stored of foundation various spolen titles of the present invention.
Fig. 7 a and Fig. 7 b are the figure that is used for illustrating according to correlativity between the intrinsic map of spolen title (EP_map) of the seamless change of spolen title of the present invention and spolen title map information.
What Fig. 8 was shown is and the menu information figure that is associated according to the seamless change of spolen title of the present invention.
What Fig. 9 was shown is according to optical disc playing device figure of the present invention.
[embodiment]
Below, at first with reference to Fig. 1 and Fig. 2, above-mentioned master data and spolen title data are elaborated in the storage form of CD stored and the file structure that this is managed.
What at first, Fig. 1 was shown is according to high density compact disc file structure figure of the present invention.Under a root directory (root directory), there is more than one BD file (BDMV) at least, comprise in the BD file that guarantee and user carry out the ordinary file of (interactivity) (upper file) information index file (index.bdmv) and movie object file (MovieObject.bdmv) alternately, simultaneously, in fact, 3 files that have the information that the data of being stored in the CD are play and play its information such as method are respectively played file folders (PLAYLIST), clip file (CLIPINF) and data streaming file folder (STREAM).
Below, will be elaborated to these 3 kinds of files and the file that is wherein comprised.After this, again spolen title information related to the present invention and the correlativity between file are elaborated.There are in the CD main video and audio data stream (this is called as " main AV data stream ") file in the data streaming file folder with the specific format storage, and the relevant data stream (this is called as " spolen title data stream ") of auxiliary data such as spolen title.As mentioned above, " main AV data stream " is meant transmission (Transport) the packets of information storage of present widely used MPEG2 mode, and main AV data streaming file (01000.m2ts, expansion 02000.m2ts) is called " * .m2ts ", and it is used to distinguish use.For " spolen title data stream ", according to the difference of operating position, also exist the situation of not storing with the MPEG2 form, in this case, if just the file extension of suitable related pattern can.For example, store with the text data form, it is more satisfactory that file extension is stored as the words of " * .txt ".
The special called after clip data streaming file (clip streamfile) of above-mentioned data streaming file quilt in the BD form, related to the present invention, the spolen title data of being stated are file (seperated file) forms different with the AV data stream, promptly exist with the form of spolen title data streaming file (* .txt).Clip data streaming file folder be by with above-mentioned each data stream (* .m2ts, * .txt) file one to one clip information (Clip info) file (* .clpi) constituted.Specifically, the clip message file is being stored the attribute information of corresponding data streaming file and temporal information (timing information) etc., in the above-mentioned information, will be to enter point diagram (Entry Point Map, below being referred to as " EP_map ") the performance time mark (PTS:Presentation Time Stamp) of mode and source packet code (SPN:Source Packet Number) be with the form of form (table) one by one after the correspondence, temporal information (the In-Time that in following broadcast information (PlayItem) or auxiliary broadcast information, provides, Out-Time PTS) map information (mapping) that has the ad-hoc location that to search for (search) related data stream file (* .m2ts, * .txt) in.
As mentioned above, data stream (* .m2ts, * .txt) file and clip message file (* .clpi) bundle one to one mutually, and in the BD specification, it is named as " clip (clip) ".Therefore, the file " 01000.clpi " in the clip message file folder just has the attribute information of file " 01000.m2ts " in the data streaming file folder.File " 01000.clpi " and " 01000.m2ts " just become a clip and constitute.Specifically, be used to play and play in the clip message file of spolen title except that above-mentioned map information, also storing the multiple seamless information of supporting the seamless play change between a plurality of spolen titles, will be elaborated to this later on.
The played file folder is made of played file (* .mpls), comprises the broadcast information of specifying the reproduction time (playing interval) of specific clip more than in each played file at least.Therefore, has the specific clip that needs broadcast in the broadcast information, be in the broadcast information with the play start time (In-Time) of the clip of clip name (Clip_Information_File_name) appointment with play the temporal information of concluding time (Out-Time), this in clip information flexibly use map information state.
Finally, the broadcast information file becomes the fileinfo of the basic broadcast that can play required clip by the combination of at least more than one broadcast information.Simultaneously, as required, in the broadcast information file, also have auxiliary broadcast information, under the situation that has auxiliary broadcast information, become asynchronous (non-synchronized) broadcast mode with broadcast information.
Related to the present invention, will be to being held explanation by the situation of above-mentioned auxiliary broadcast information management with the auxiliary data that comprises spolen title.Explanation to this partial content will carried out from now on.Simultaneously, the index file (index.bdmv) and the movie object file that in the BD file of being stated, also have the ordinary file of conduct guarantee and user interactions.Specifically, index file is mainly constituted with index chart (index Table), has menu information (Menu) and heading message that the user can select in the thumbnail.Fig. 2 is that summary shows according to high density compact disc value storage aspect graph of the present invention.From the CD inner ring, as the system information that is used to manage all files, this is made of following each several part: file system information area (File SystemInformation Area); Be used for storing the play list file that is used to play data stream (* .m2ts, the * .txt) file of being stored and clip message file, as the index file of upper file (ordinary file) and the storage area of file destination (this is called as " Database Area "); Be used for the data streaming file zone (AV stream Area) of master datas such as storing audio/video and auxiliary data.
Therefore, user ' 55ser) by the fileinfo in the above-mentioned data base area (Database Area), just can determine and use flexibly needs master data and the auxiliary data play, with and broadcast mode.Fig. 3 is used for the file structure illustration of broadcast management spolen title of file structure among displayed map 1 and Fig. 2 and storage form.Specific title (Title #k) is play under the situation of management according to play list file, specifically, the main AV data storage that constitutes actual headings content (contents) is in main folder (Main Clip), and rely on broadcast information to manage, the spolen title of above-mentioned auxiliary main AV data is stored in especially the spolen title clip (Subtitle Clip), and managed by auxiliary broadcast information, can there be the auxiliary title (Subtitle Clip 1) of supporting English (English) and spolen title a plurality of spolen titles such as (Subtitle Clip 2) of support Korean (Korean).A plurality of spolen titles are made of different file (SubtitleClip 1,2) respectively, still, also can have a plurality of auxiliary title data streams in the file.
Simultaneously, in Fig. 3,, a plurality of auxiliary titles are carried out the file structure of cura generalis though what show is to rely on an auxiliary broadcast information,, a plurality of spolen title files also can have different auxiliary broadcast information.
Below, will be to according to the broadcast change management information between a plurality of spolen titles of the present invention, particularly seamless information in fileinfo storage means and the spolen title player method of the utilization seamless information of storing be elaborated.With spolen title, serve as main describing particularly with " text subtitle ".
What Fig. 4 was shown is to provide master data and spolen title to hold the situation of explanation in the picture simultaneously.User (user) plays in the process of watching to the spolen title that Korean (Korean) is made at the same time as master data, if wish master data is changed broadcast with the spolen title of English (English) textual form, just the change of seamless auxiliary title is play as shown in the figure.
Be associated therewith, the meaning of " seamless play change " between spolen title in fact is meant as connecting to the client provides each spolen title data, will watch that picture is provided as real time (real-Time).In the present invention, this is named as " seamless change " or " bumpless transfer (seamless switching) ".
Simultaneously, as mentioned above, be associated with seamless change between spolen title, in the CD in the file institute's canned data be referred to as " seamless information ".After this particular content of seamless information will be elaborated to this as shown in Figure 5.Simultaneously, in order to carry out the seamless change of wrongly written or mispronounced character interlude, basically optical disc playing device (Fig. 9) must have a certain size the impact damper (19 among Fig. 9) that can carry out seamless change, for example, a spolen title data stream is about as much as the words of the memory capacity of 720kbyte, in order to realize seamless change, must have the impact damper of minimum (2*720kbyte) size between two spolen titles.In the above-mentioned impact damper that has above minimum capacity, need preload (preloading) to be used for the spolen title data of seamless change.
What Fig. 5 and Fig. 6 were shown is the sentence structure of the seamless message file stored of foundation various spolen titles of the present invention.What Fig. 5 was shown is in the seamless information, comprising showing number information " number_of_Text_subtitle_seamless_change " of carrying out seamless spolen title and the information " minimun_buffer_size_for_seamless_change " that can show the buffer sizes of carrying out seamless spolen title.Can what Fig. 6 showed be to show carry out seamless information " seamless_changeable_flag " and show carrying out seamless language message " seamless_changeable_language ".
Below, will be specifically described with the concrete feature and the flexible using method of above-mentioned multiple seamless information.
As reference, above-mentioned 4 kinds of seamless information (seamlessinformation) though all can provide normalized information,, as required, have only information specific to standardize.In the present invention, the reason that Fig. 5 and Fig. 6 are separately described just is being based on this consideration.
At first, Fig. 5 will suppose there to be 3 title (Title# 1 in the CD for convenience of description, #2, #3), title # 1 has n spolen title (n 〉=3), title # 2 has m spolen title (m 〉=2), and title # has k auxiliary title (k 〉=4) and describes for example.
Simultaneously, each title is as fileinfo, in play list file or clip message file, " Text_Subtitle " that be associated with the broadcast spolen title will redefine sentence structure and constitute, simultaneously, existing fileinfo, for example, utilize " StreamCodingInfo () " in the clip message file etc., it is all passable to store seamless information of the present invention.
Below, will be that example describes with new formation " Text_Subtitle () " sentence structure.Therefore, each title is as the fileinfo that is used for playing spolen title, and it possesses " Text_Subtitle () " information, plays management information at the auxiliary title of relevant " Text_Subtitle () " stored and is constructed as follows.
At first, " number_of_Text_Subtitle " zone is as showing the information that has auxiliary title number in the related heading, title # 1 is stored as " number_of_Text_Subtitle=n ", title # 2 just is stored as " number_of_Text_Subtitle=m ", and title # 3 just is stored as " number_of_Text_Subtitle=k ".Be associated therewith, the number of the spolen title that can store in all titles or the CD can especially manage.For example, be defined as P if can store each title (or each CD) data stream number respectively, each data stream is respectively video data stream=1, audio data stream=2, setting value is carried out in image data stream=7, and is final, and the number that can store auxiliary title data stream just is P-(1+2+7), this is " max_number_of_Text_Subtitle " zone, and it can be stored in above-mentioned " Text_Subtitle () ".
Simultaneously, " number_of_Text_subtitle_seamless_change " zone is as the spolen title number information that can carry out seamless change in all spolen titles of related heading stored, title # 1 can be made as " number_of_Text_Subtitle_seamless_change=3 ", title # 2 is set at " number_of_Text_Subtitle_seamless_change=2 ", title # 3 is set at " number_of_Text_Subtitle_seamless_change=4 ", and this situation just as shown in the figure.
Simultaneously, " minimun_buffer_size_for_seamless_change " zone is as conforming to the above-mentioned spolen title number that can carry out seamless change, support the information of the minimal buffering device size of seamless change, for example, the disc making people can be with auxiliary title of title #1 (for example be stored as N easily, N=720kbyte), like this, just be stored as " minimun_buffer_size_for_seamless_change=3*N ", the capacity M that title # 2 can be stored as a spolen title (for example, M=700kbyte), " minimun like this
_ buffer_size_for_seamless_change=2*M ", title # 3 be stored as a spolen title capacity big or small K (for example, K=750kbyte), " minimun_buffer_
size_for_seamless_change＝4*K″。The disc making people is stored as uniform data easily with the storage of all auxiliary titles in the CD, clearly, above-mentioned N, M, the data of K all be unified data (for example, 720kbyte).Therefore, optical storage playback equipment (Fig. 9) is from relevant
" number_of_Text_subtitle_seamless_change " zone and
Read out canned data in " minimun_buffer_size_for_seamless_change " zone, can confirm correctly that just related heading can carry out the spolen title number and the needed for this reason buffer sizes of seamless change.Thus, can the formation relevant be meant the broadcast amount of capacity that is used to seamless change that is equivalent in the associated buffer size with buffer capacity.
Simultaneously, the buffer sizes that is had in the optical disc storage playback equipment (Fig. 9) is compared little with the above-mentioned buffer sizes that can carry out seamless change, or be difficult to cut apart and make new advances under the situation of impact damper, in the impact damper that can use, also can be set at and allow to carry out seamless change.For example, the spolen title data stream number that title # 1 can carry out seamless change is 3, though minimal buffering device capacity is 3*720kbyte, but in the optical storage playback equipment, can use the impact damper that carries out seamless change to be X flexibly, (2*720kbyte＜X＜3*720kbyte) scope is interior if X is present in, finally, optical storage playback equipment (Fig. 9) is merely able to support 2 spolen titles to carry out seamless change, to the user time, can provide and select to wish the spolen title menu information that carries out seamless change this channeling conduct.To in Fig. 8 of back, be elaborated for menu information.
Next, with save with Fig. 5 in identical content, the method for storing seamless information in the CD to storage main AV data (title) and spolen title among Fig. 6 describes.Below, be removed with zone mutually unified among Fig. 5, and only new zone described.
At first, " seamless_changeable_flag " zone is as showing whether can carry out seamless information, can apply in a flexible way and whether support the seamless modification information that the spolen title to the related heading stored carries out, " if seamless_changeable_flag=0 ", just expression does not allow to carry out seamless change, " if seamless_changeable_flag=1 ", just expression allows to carry out seamless change.
Simultaneously, " number_of_Text_subtitle_seamless_change " among " number_of_Seamless_changeable_stream " zone and Fig. 5 unifies mutually, all be to show the number that to carry out the spolen title of seamless change in the related heading, only changed a different area-name.
Simultaneously, " seamless_changeable_language " zone is as showing the spolen title language message that can carry out seamless change, what for example, title # 1 was shown is can carry out seamless change between 3 spolen titles of Korean/English/Japanese (Kr/En/Jp); What title # 2 was shown is can carry out seamless change between 2 spolen titles of English/French (En/Fr), and what title # was shown is can carry out seamless change between 4 spolen titles of English/French/Spanish/German (En/Fr/Sp/Ge).As above-mentioned shown in Figure 6, along with have " seamless_changeable_flag " zone and
" seamless_changeable_language " zone, the disc making people can specify oneself to make between each specific title of CD (or each CD) spolen title whether can carry out seamless change, or can carry out the language etc. of seamless change.In the specific region of selling associated optical disc, CD can be used flexibly.For example, if the CD that uses in Korea S, " seamless_changeable_language " zone just is set at Korean/English (Kr/En) etc., the CD that uses in the U.S.,
" seamless_changeable_language " zone just can be set at English/French/Spanish (En/Fr/Sp) etc.
Fig. 7 a and Fig. 7 b be used for illustrating according to correlativity between the intrinsic map of spolen title of the seamless change of spolen title of the present invention and spolen title map information figure.Content shown in the figure is to store up the intrinsic map information of each spolen title (EP-map) method with clip information (Clip infp) document memory of playing management information at the storage spolen title.Fig. 7 a is that the center summary has shown file structure with the intrinsic map information of above-mentioned spolen title (EP-map), if set broadcast management spolen title unit with the auxiliary broadcast information in the playlist, for example, as shown in the figure, spolen title data streaming file among the figure (Clip Subtitle stream file) has only one, but, under the situation that has a plurality of spolen title data streaming files (Clip Text Subtitle streamfile), obviously, it can expand use according to same mode.Simultaneously, in Fig. 7 a, the corresponding clip message file of broadcast information that main AV data streaming file relies on and playlist is interior manages, and this specifies the clip name in the broadcast information just as shown in Figure 1
(Clip_Information_File_name) clip play start time (In-Time) and broadcast concluding time (Out-Time) are used as performance time mark (Presentation Time Stamp; Below being referred to as " PTS ") information offers the clip message file.The map information that includes " EP_map " mode in the clip message file.Above-mentioned PTS information is transformed to addressing (address) information of the ad-hoc location in the main AV data streaming file of mapping and is provided, specifically, if main AV data streaming file is stored with MPEG2 TS form, above-mentioned addressing information is just by source packet code (Source Packet Number; Below be referred to as " SPN ".) manage.Simultaneously, to the spolen title data streaming file manage by with playlist in the corresponding clip message file of auxiliary broadcast information manage, this specifies the clip clip play start time (In-Time) of the clip name (Clip_Information_File_name) in the auxiliary broadcast information and plays the concluding time (Out-Time) to be used as performance time mark (PTS) information and to offer auxiliary title data stream and offer and manage the clip message file just as shown in Figure 1.The map information that includes " EP_map " mode in the relevant clip message file.Above-mentioned PTS information is converted into the addressing information that has shone upon the ad-hoc location in the spolen title data streaming file.That is, the map information of above-mentioned " EP_map " mode becomes by constituting the mode of title with the corresponding addressing information numerical value of PTS.Relevant therewith, above-mentioned addressing information can be diversified according to the storage format form of spolen title data stream, the spolen title data stream is unified mutually with main AV data streaming file, be used as the words that MPEG2 TS form is stored, identical with main AV data streaming file, be used as source packet code (SPN) and manage.Simultaneously, auxiliary title data stream is stored by bitmap (Bit map) form that the scale-of-two (binary) that is not MPEG2 TS form constitutes, by byte location (the Byte Position of relevant bitmap; Below be referred to as " BP ") or sector code (Sector Number; Below be referred to as " SN ") manage.If the spolen title data stream is not being that text (Text) form of the storage text data of MPEG2 TS form is stored, not only can manage, and can use line code (the Line Number of text with byte location (BP) or the sector code (SN) of related text (Text); Below be referred to as " LN ") manage.
Fig. 7 b is identical with above-mentioned Fig. 7 a, and what it was shown is to have respectively under the situation of map information at each spolen title, in order to carry out the seamless change between spolen title, makes the method for the time synchronized unanimity of correlation map information.Promptly, under the situation that map information (EP_map#2) title of map information (EP_map#1) title of the spolen title data stream made from Korean and the spolen title data stream of making in English exists, PTS numerical value in each title is unified by " calibration (Align) ", if the user has seamless modification application on specific PTS position, just can change broadcast to PTS numerical value addressing information (SPN or BP or SN or LN) unified in the correlation map message header, so, also can carry out the seamless change of more speed.
Specifically, be that the interior PTS numerical value of map information title can be read out by the form with " PTS_EP_coarse " and " PTS_EP_fine ", the situation of example on the foundation, " PTS_EP_coarse " in map information #1 (EP_map#1) title and map information #2 (EP_map#2) title and " PTS_EP_fine " numerical value is by unified setting the mutually, and pairing addressing information (SPN or BP or SN or LN) is if just in fact can to distinguish the position of designated store spolen title passable.
What Fig. 8 was shown is and the menu information figure that is associated according to the seamless change of spolen title of the present invention.Promptly, words by " Root Menu " selection " Subtitle menu ", the various menus that are associated with spolen title are provided, can have " Language " menu of being used to set the spolen title language therebetween, be used to set " Position " menu of play position in the spolen title picture and be used to set " Font " menu etc. of spolen title size.Simultaneously, also provide the user can set " Seamless " menu of the needed language of the seamless change of spolen title.Therefore, if the user has selected " Seamless " menu, just demonstrate spolen title language that each title provides or the language that can carry out seamless change.Wherein, also constituted the menu information that the user can select language.
Relevant therewith, utilize menu information of the present invention, can tackle various states.At first, user's menu informations such as (call) menu key of can oneself breathing out, as shown in Figure 8, if select " Korean/English/Japanese " 3 language, optical storage playback equipment (Fig. 9) is considered and is allowed all requirements of user from the size (for example more than the 3*720kbyte) of penetrating impact damper, if its size is big or small also littler than minimal buffering device, just inform and to carry out seamless change, point out out the language (for example, 1 or 2) that is merely able to select information.
Simultaneously, optical storage playback equipment (Fig. 9) is at the initial stage of CD operation, from CD, read out seamless information, as mentioned above, consider the size of self impact damper, can calculated in advance go out the number that to carry out the spolen title of seamless change, under the situation that the user does not apply for, provide above-mentioned " SubtitleSeamless " menu to the user, if the user has selected the spolen title of language-specific, after this, the just auxiliary title of preload relational language in impact damper, after this just can with user's corresponding the applying in a flexible way of seamless application.In other cases, except carrying out above-mentioned the applying in a flexible way,, believe also and can carry out various applying in a flexible way according to the menu information as shown in Figure 8 that is provided.
What Fig. 9 was shown is according to optical disc playing device figure of the present invention.It is made of following each several part basically: be used to read out comprise in the CD the pick-up device 11 of fileinfo of the data of storing and the seamless information of spolen title; The servomechanism 14 of control pick-up device 11 operations; Pick-up device 11 received play signal are reduced to needed signal numerical value, are the signal modulation (modulation) that will store the signal that is stored in the CD, and the signal processing apparatus 13 that transmits; The storer 15 of the above-mentioned fileinfo of temporary transient storage; Control the microcomputer 16 of above-mentioned operation.The equipment that comprises these component parts also can be called as " storage playing device ".Simultaneously, in order to carry out seamless change of the present invention, also need can preload and temporary transient storage allow the impact damper 19 of the spolen title numerical value of seamless change, above-mentioned impact damper is general all to be installed at the front end of above-mentioned AV demoder.Simultaneously, be used to store the impact damper 20 general rear ends that all are installed in AV demoder 18 of the data of decoding by AV demoder 18.
Relevant therewith, employed storer 15 or impact damper 19,20 obviously, can unite two into one, and only have a kind of according to the difference of operating position as same " storage means " among the present invention.
Relevant therewith, AV demoder 17 is under the control of control device 12, finally output data is decoded, and provide to the user, in order to move the function of storage signal in CD, AV demoder 18 is converted to input signal the signal of specific format under the control of control device 12, for example be converted to the transmitting data stream form of MPEG2 form etc., the signal in the storage playing device is provided for treating apparatus 13.
Simultaneously, control device 12 is as the parts of control overall optical storage playback devices operation, if there is the seamless modification application of user's spolen title, confirm that can the temporary transient seamless information of spolen title of storing carry out after changing seamless in the above-mentioned memory unit (impact damper and/or storer), control, only assist the seamless change of title to play the spolen title that allows to carry out seamless change.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.Therefore, the technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to interest field.
Claims (15)
1, high density compact disc document forming method comprises:
Main AV data stream and a plurality of spolen title data stream relevant with main AV data stream are divided into independently file and are stored, and the seamless information of spolen title that is used for the seamless change between above-mentioned a plurality of spolen title data stream is stored.
2, as claim item 1 described high density compact disc document forming method, it is characterized in that:
One in the above-mentioned seamless information for showing the information that can carry out seamless spolen title number (number_of_Text_subtitle_seamless_change).
3, as claim item 1 described high density compact disc document forming method, it is characterized in that:
One in the above-mentioned seamless information for showing the information that can carry out seamless spolen title buffer sizes (minimun_buffer_size_for_seamless_change).
4, as claim item 1 described high density compact disc document forming method, it is characterized in that:
One in the above-mentioned seamless information for showing the information that whether can carry out seamless (seamless_changeable_flag).
5, as claim item 1 described high density compact disc document forming method, it is characterized in that:
One in the above-mentioned seamless information for showing the information that can carry out seamless language (seamless_changeable_language).
6, as claim item 5 described high density compact disc document forming methods, it is characterized in that:
Above-mentionedly can carry out seamless language and constitute the menu information that the user can set.
7, as claim item 1 described high density compact disc document forming method, it is characterized in that:
Above-mentioned a plurality of spolen title data stream has map information respectively.
8, as claim item 7 described high density compact disc document forming methods, it is characterized in that:
The map information that above-mentioned a plurality of spolen title data stream has respectively is the phase mutually synchronization in time.
9, as claim item 1 described high density compact disc document forming method, it is characterized in that:
According to above-mentioned document forming method, the seamless information of storage spolen title on CD.
10, the spolen title player method of high density compact disc comprises:
Read the fileinfo of the CD that is moving, with reference to the fileinfo of having read, come CD is play, in this process, if there is user's change spolen title request, just read out the seamless information in the above-mentioned fileinfo, and according to the seamless information that is read out, it is after changing seamless whether affirmation can be carried out, and only the spolen title that can change carried out seamless play.
11, the spolen title player method of high density compact disc comprises:
Read the fileinfo of the CD that is moving, with reference to the fileinfo of having read, come CD is play, in this process, if there is user's seamless change spolen title request, just read the seamless information of taking out in the above-mentioned fileinfo, and according to the seamless information that is read out, after confirming to be used for the needed buffer sizes of seamless change, under situation, carry out the spolen title seamless play with associated buffer size.
12, as the spolen title player method of claim item 11 described high density compact discs, it is characterized in that:
If do not have the buffer sizes of the seamless change that is used for above-mentioned spolen title, the buffer sizes that can utilize is expanded, and carries out seamless change and plays.
13, as the spolen title player method of claim item 11 described high density compact discs, it is characterized in that:
If do not have the buffer sizes of the seamless change that is used for above-mentioned spolen title, in the associated buffer size, only can carry out the spolen title of the certain number of seamless change to user's circular.
14, as the spolen title player method of claim item 11 described high density compact discs, it is characterized in that:
If do not have the buffer sizes of the seamless change that is used for above-mentioned spolen title, to menu information is provided, make the user in the associated buffer magnitude range, can select and the corresponding language-specific number of spolen title number.
15, high density compact disc storage playback devices comprises:
Memory unit carries out preload to the spolen title data and the seamless information that play out from the operation CD;
Control device, if there is the seamless change request of user's spolen title, whether can carry out after changing seamless in affirmation, just from above-mentioned memory unit, in the seamless information of spolen title of temporary transient storage, only the spolen title that allows to carry out seamless change is carried out the seamless change broadcast of spolen title.
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| CN 200510027445 CN1892864A (en) | 2005-07-01 | 2005-07-01 | High-density CD data formation method and dialogue caption playing method using same and apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101673571B (en) * | 2009-09-17 | 2013-11-13 | 深圳万兴信息科技股份有限公司 | DVD optical disc data compression method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101673571B (en) * | 2009-09-17 | 2013-11-13 | 深圳万兴信息科技股份有限公司 | DVD optical disc data compression method and system |
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