CN1905038A - High-dense light disk document forming method and playing method and recording player thereof - Google Patents

Abstract

The invention relates to high density compact disc file constructive method and its playing method and recording player. It includes the following steps: respectively recording AV flow and relative many subheads flow with the independent file; the AV flow is managed by playing order; the subhead flow is managed by sub playing order whose maximum quantity is designed preliminarily. The invention can offer the playing management information of the recorded auxiliary data and the subhead playing to make the subhead playing of the high density compact disc more effective.

Description

The document forming method of high density compact disc and player method and recording and reproducing apparatus thereof

Technical field

The invention relates to comprise in the CD the document forming method of the broadcast management information effectively play of the master data that writes down and auxiliary data, especially about on high density compact discs such as Blu-ray Disc, subtitle information being provided as the invention of auxiliary data and player method of playing and recording and reproducing apparatus thereof.

Background technology

As optical recording media, CD can write down lot of data, thereby is widely used.Having developed again recently can long record high image quality video data and the novel high-density optical recording media (HD-DVD) of high tone quality voice data, for example Blu-ray Disc (Blu-ray Disc is hereinafter to be referred as " BD ").

As the replacement technology of HD-DVD, Blu-ray Disc (BD) since its performance aspect record data apparently higher than existing DVD, so the present technology sample of formulating the worldwide internal standard together with other digital devices.

Though the optical record-play device of Xiang Guan application Blu-ray Disc also has been developed out therewith, because the specification of Blu-ray Disc (BD) imperfection also, so in fact also be difficult to develop perfect optical record-play device.

Especially, in order to play recorded data in the described Blu-ray Disc effectively, not only needing provides main AV data to the user, also will provide and the relevant auxiliary data of main AV data to the user, for example the several data that can bring convenience for the user such as subtitle information.And should be used in the CD the management information architecture of playing of the master data that writes down and auxiliary data, and then offer the user.

But, in the middle of the specification of present Blu-ray Disc, also do not have at described auxiliary data--especially subtitle information is formulated unified specification.Thereby the optical record-play device that in fact wants to develop based on perfect Blu-ray Disc also exists many restrictions.Wherein provide the broadcast management information of subtitle and so on auxiliary data just especially to be a problem to the user.

Summary of the invention

The present invention puts forward at described problem, its objective is document forming method and player method and recording and reproducing apparatus thereof that high density compact discs such as a kind of suitable Blu-ray Disc are provided.

The invention provides with CD in the relevant auxiliary datas such as subtitle of the master data that writes down, especially will comprise the broadcast management information of the quantity of recordable subtitle stream, and carry out architecture and offer the user as information formatted in the optical file.

And the present invention also will provide the subtitle that can utilize described formation to play method and the recording and reproducing apparatus thereof that management information is effectively play the CD subtitle.

In order to realize purpose of the present invention, the document forming method of a kind of high density compact disc of the present invention has following characteristics:

Main AV stream is recorded as separately independently file respectively with a plurality of subtitle streams (Subtitle) relevant with main AV stream; Described main AV stream relies on broadcast bar (PlayItem) to play and manage; Subtitle stream (Subtitle) relies on son to play bar (SubPlayItem) and plays and manage, the maximum quantity that the subtitle that relies on described son broadcast bar to play and manage flows is reserved in advance, can write down subtitle stream in predetermined maximum quantity scope.

And, the another kind of document forming method of high density compact disc of the present invention has following characteristics: main AV stream is recorded as separately independently file respectively with the auxiliary data flow relevant with main AV stream, described main AV stream relies on the broadcast bar to play and manage, whether auxiliary data flow relies on son to play bar and plays and manage, play writing down in the bar to embody at described son to be existed a plurality of by the information (IS-multi-streams) of management auxiliary data flow by the kind of information (SubPlayItem-type) of management auxiliary data and expression.

In addition, the document play-back method of a kind of high density compact disc of the present invention, be at first to read the fileinfo that is loaded in the CD, and then play the method for CD with reference to the fileinfo read, it has following characteristics: the son from described fileinfo is play bar information and is begun, read and utilize son to play the subtitle broadcast management information that bar manages, thereby play out relevant subtitle.

And the recording and reproducing apparatus of a kind of high density compact disc file of the present invention comprises following component part: 1. the storage device that management information temporarily stores play in the subtitle of reading from be loaded CD; 2. control part, it is responsible for playing management information from described subtitle, the size of soon loading the storage device of relevant subtitle is distributed, and after into described storage device reloaded in the subtitle of will being correlated with, play the requirement of subtitle according to the user and control the action of carrying out the described subtitle of reloading of broadcast.

Effect of the present invention:

The document forming method of described high density compact disc of the present invention and player method and recording and reproducing apparatus thereof can provide the broadcast management information that the broadcast management information that is used for playing the auxiliary data that writes down in the CD and subtitle information are play.So the present invention has the advantage that can carry out subtitle playback action in the high density compact disc effectively.

For further specifying described purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the file build synoptic diagram of middle-high density CD of the present invention.

Fig. 2 is the simple synoptic diagram of data recording form on the middle-high density CD of the present invention.

Fig. 3 a and Fig. 3 b are the embodiment synoptic diagram that uses subtitle and master data among the present invention simultaneously.

Fig. 4 a to Fig. 4 c is that to have only subtitle in the auxiliary data among the present invention be synoptic diagram when existing with a plurality of quantity.

Fig. 5 a and Fig. 5 b are in the auxiliary data among the present invention, the synoptic diagram when subtitle and other key elements all exist with a plurality of quantity.

Fig. 6 a and Fig. 6 b are the syntactic structure synoptic diagram that neutron of the present invention is play bar.

Fig. 7 is an optical record-play device synoptic diagram among the present invention.

The symbol description of major part in the accompanying drawing:

11: pick-up 12: control part

13: signal processing part 15: primary memory

17:AV demoder 19: impact damper

Embodiment

Below with reference to accompanying drawings the document forming method of high density compact disc of the present invention and the embodiment of player method and recording and reproducing apparatus thereof are elaborated.Need simultaneously to illustrate in advance, though used current widely used common term among the present invention as much as possible, but under specific circumstances for various reasons, sometimes also used arbitrarily selected term, in this case, owing to the implication of this term has been carried out detailed record, so it is not used as the title of simple term but holds according to the implication that term comprised in related description of the present invention part.

Relevant therewith, the implication of " master data " used among the present invention is: as the heading message that is write down in the CD, master data is image and the voice data that is provided to the user by disc manufacturer, at least has more than one title in the CD, usually the form with MPEG2 carries out record, also is known as " main AV stream ".

And, the implication of " auxiliary data " is: when playing " master data ", " auxiliary data " is the master data of providing convenience for the user to being intended to of providing of user and all associated data, comprising being subtitle information, the figure surface low, the audio-frequency information of menu information and slideshow service, auxiliary video information etc., character according to each auxiliary data, it can be the stream file that carries out demultiplexing (multiplexing) and record with the MPEG2 form on main AV stream, or is registered as and the relatively independent stream file of main AV stream with MPEG2 form and other forms.

Relevant therewith, in the present invention, " auxiliary data " is recorded and manages to flowing relatively independent stream file with main AV, and this is in order to increase substantially the use dirigibility of auxiliary data.Illustrating comes to this does to be not only and can keep its advantage of applying in a flexible way in auxiliary data is recorded in CD the time, and is in the advantage that also its maintenance is applied in a flexible way when download the CD outside.

And, in the present invention, the implication of auxiliary data " subtitle " is a kind of caption information, it is to wish the image in the current broadcast (main AV data) when watching with the language-specific captions as the user, if the user has selected the subtitle of relational language in the subtitle that CD supports, the information that shows in a side of picture just.Therefore, subtitle may carry out record with multiple form, and it can be recorded as MPEG2 and transmit bag, also can be recorded as the binary bit form of bitmap form, can also be recorded as text data; The subtitle that wherein is recorded as text data is called as " text subtitle ".

The present invention especially also is recorded in the text subtitle master data and the auxiliary data relevant with master data in the Blu-ray Disc as auxiliary data, and the fileinfo that will be used for playing described data also is recorded in the Blu-ray Disc.Its feature is: the write down sum of regulation subtitle, write down subtitle in predetermined subtitle can write down total scope.And the subtitle that is recorded is carried out managing with respect to the other broadcast of master data.Below just explain with described master data and as the subtitle of auxiliary data and be recorded in the record form in the CD and the structure of management document thereof referring to figs. 1 through Fig. 2.

At first, Fig. 1 is the synoptic diagram that shows the recorded file structure that manages in the CD.Under a root directory (root directory), there is more than one BD catalogue (BDMV) at least, in BD catalogue (BDMV), include be used for ensureing and the user between carry out ordinary file (upper file) information index (index.bdmv) and the name information (MovieObject.bdmv) of interaction (interactivity), in fact, it includes 3 catalogues that have at the method for broadcast information recorded in the CD and these information of broadcast: playing list (PLAYLIST), folder information catalogue (CLIPINF), stream catalogue (STREAM).Below just earlier described three kinds of catalogues and the file that comprised thereof are described, and then subtitle information relevant with the present invention and the correlativity between the file are described in detail.

Stream comprise in the catalogue with specific format be recorded in main video in the CD and the pairing file of audio stream (they are called as " main AV stream ") with the relevant stream (it is known as " auxiliary data flow ") of auxiliary data such as subtitle.Such as previously described, because " main AV stream " is registered as transmission (Transport) bag (packet) of present widely used MPEG2 mode, thus main AV stream file (01000.m2ts, expansion 02000.m2ts) is called " * .m2ts "; And the situation of " auxiliary data flow " is just different, sometimes be not registered as the MPEG2 form in actual applications yet, in this case as long as use the file extension that is fit to related pattern just passable, for example: if subtitle is registered as text data (Text data) form as auxiliary data, the extension name of file is just preferably used " * .txt " so.

In the BD specification, described stream file is by special called after file stream file (clip stream file), relevant with the present invention is that the subtitle data that the front is said is promptly to exist as subtitle stream file (* .txt) with separate file (seperated file) form with respect to AV stream.

Folder information catalogue (CLIPINF) by with described each stream (* .m2ts, * .txt) file one to one folder information (Clip info) file (* .clpi) constitute.The folder information file is responsible for writing down the attribute information and the clocking information of corresponding stream file with it, in the described information, relying on entrance sign (EntryPoint Map) mode will to indicate that (PTS:Presentation Time Stamp) and original packet quantity (SPN:Source Packet Number) are with the chart form one by one after the correspondence expression time, just the broadcast bar that can will talk about from behind or son are play the middle acquisition of clocking information (In-Time, Out-Time PTS) that bar provided and can be found stream file (* .m2ts, * the message bit pattern (mapping) of ad-hoc location .txt).

As mentioned above, stream file (* .m2ts, * .txt) and folder information file are summarised in together are named as " file (clip) " in the BD specifications one to one mutually.Therefore, the file " 01000.clpi " in the folder information catalogue (CLIPINF) has attribute information and the clocking information at file " 01000.m2ts " in the stream catalogue, and file " 01000.clpi " and " 01000.m2ts " have constituted a file.

Relevant therewith, in the present invention, the file that flows at main AV is called " main folder (Main Clip) "; File at auxiliary data is defined as " sub-folder (Sub Clip) "

Playing list is made up of played file (* .mpls), and each played file comprises the broadcast bar that at least more than one is used for specifying particular file folder reproduction time (playing interval).Therefore, playing bar has at the particular file folder of wanting to play, promptly in playing bar, be designated as folder name (Clip-Information-File-name) file play start time (In-Time) and play concluding time (Out-Time) clocking information, it can resemble also that the front says in folder information flexibly use on message bit pattern.

As a result, played file becomes and relies at least more than one combination of playing bar to play the basic played file information of wanting file.And, as required, son also can be set in the played file play bar, be provided with son and play the mode that the situation of bar is and broadcast bar asynchronous (non-synchronized) is play.In the present invention, the auxiliary data that comprises subtitle manages by described son broadcast bar, and the back will be described in detail this.

And, be provided with in the BD catalogue of being said in front (BDMV) and be used for ensureing common retrieving files and the title file (MovieObject.bdmv) that carries out interaction with the user, wherein retrieving files mainly is made of key (indexTable), and being provided with in key can be for the menu information (Menu) and title (Title) information of user's selection.

Fig. 2 is the simple synoptic diagram of data recording form (CD capacity) on the middle-high density CD of the present invention.If mainly observe disk inner, its inside mainly comprises following three zones: 1. will manage the zone (File System Information Area) of the system information of all files as filesystem information; 2. at the played file that is used to play institute's recorded stream file (* .m2ts, * .txt), folder information file with as the retrieving files of upper file (ordinary file), the zone (it is referred to as " database area ") that title file (MovieObject.bdmv) writes down; 3. be responsible for the stream file zone (AV stream Area) of master data such as record audio/video/chart and auxiliary data.

Therefore, the user can determine also use flexibly to want master data and auxiliary data and the broadcast mode of playing thereof by the fileinfo in the described database area (Database Area).Because it can be applicable to other auxiliary datas synchronously, thus below will with among the present invention as the subtitle of auxiliary data, serve as main describing particularly with the text subtitle.

Fig. 3 a and Fig. 3 b are the embodiment synoptic diagram that uses subtitle and master data among the present invention simultaneously.Fig. 3 a shows is text subtitle printed words when subtitle is Korean; Fig. 3 b shows is text subtitle printed words when subtitle is English.

Relevant therewith, the present invention will describe following situation respectively as embodiment: when the situation of a plurality of subtitles when providing with the relatively independent subtitle stream file mode of master data (main AV stream file); When a plurality of subtitles constitute separately independently the subtitle stream file, the situation when perhaps a plurality of subtitles being merged subtitle stream file of formation.

Fig. 4 a to Fig. 4 c is the synoptic diagram when having only subtitle to exist with a plurality of quantity in the auxiliary data among the present invention.The conceptual synoptic diagram of Fig. 4 a; Fig. 4 b is the synoptic diagram of a plurality of subtitles when being registered as unique file; Fig. 4 c is that a plurality of subtitles are recorded in a synoptic diagram in the file.

At first, Fig. 4 a shown when specific title (Title#k) is made of as the subtitle stream of auxiliary data main AV stream and a plurality of (n), and main AV stream relies on the broadcast bar in the played file to play management a plurality of (n) subtitle stream then to rely on the son broadcast bar in the played file to play the state of management.

As a reference, the invention has the advantages that: described main AV stream is registered as the MPEG2 form, specific auxiliary data can be re-used and be recorded in the described main AV stream, but except specific auxiliary data is multiplexing and be recorded in the situation in the described main AV stream, the present invention also provides especially will specific auxiliary data to be recorded in and has flowed in the relatively independent file and the method that manages with main AV.As mentioned above, managing in addition under the situation of auxiliary data, described auxiliary data generally is not defined as the auxiliary data that is write down in the CD, can connect flexible use as auxiliary data with being stored in the outer data of CD yet.

Fig. 4 b is the synoptic diagram of a plurality of subtitles when being registered as separately file independently.For example: subtitle file #1 (subtitle clip 1) is the subtitle that English shows, subtitle file #2 is that (subtitle clip2) is the subtitle that Korean shows, subtitle file #n (subtitle clip n) is the subtitle that Japanese shows.

Described all subtitle files all are to rely on the son broadcast bar in the played file to specify and play management, refer again to Fig. 6 a below the described sub concrete playing management method of playing bar is described in detail.

Fig. 4 c is that a plurality of subtitles are recorded in a synoptic diagram in the file.For example: in the subtitle file, be provided with subtitle stream #1 and the subtitle stream #2 of Korean demonstration and the subtitle stream #n that Japanese shows that English shows.

When described all subtitle streams were recorded in the subtitle file, the broadcast management information of management subtitle stream also relied on the son in the played file to play bar and specifies and play management.

Fig. 5 a and Fig. 5 b are the synoptic diagram that shows the 2nd embodiment that is made of the secondary video (Sub-Movie), the sub-audio (Sub-Audio) that is used for lantern slide playing, the subgraph table (Sub-Graphic) that comprise master data and a plurality of subtitles as auxiliary data.Fig. 5 a has carried out conceptual demonstration, and Fig. 5 b is when a plurality of auxiliary datas among Fig. 5 a are registered as unique file, and it is play the method synoptic diagram of management.

At first, shown in Fig. 5 a, when title specific in the CD (Title#k) by main AV stream with as a plurality of (n1) subtitle stream of auxiliary data and a plurality of (n2) secondary video flowing, a plurality of (n3) sub-audio stream and a plurality of (n4 is individual) when the subgraph surface low is formed, main AV stream is to rely on the broadcast bar in the played file to play management, a plurality of (n=n1+n2+n3+n4) auxiliary data flow is to rely on the interior son of played file to play bar to play management.

As a reference, though " secondary video flowing " is the AV identical with main AV stream format stream in the described auxiliary data, only at it during as complementary use stream file; " sub-audio stream " is the sound signal of playing as a setting when carrying out slideshow, and " subgraph surface low " is the auxiliary demonstration graph surface low that uses and the general designation of interactive figure surface low.

Relevant therewith, in described auxiliary data flow, remaining stream file also is re-used sometimes (multiplexing) and is recorded in the main AV stream except that " sub-audio stream ", and in this case, described stream file is that the broadcast bar that dependence is play management to main AV stream manages.

And, as mentioned above, in the present invention,, auxiliary data flows the interior situation except being re-used (multiplexing) and being recorded in described main AV, and also providing auxiliary data record and management is the method that flows relatively independent file with main AV.When auxiliary data was carried out other management, described auxiliary data was not defined as the auxiliary data that is recorded on the CD usually, and the data that are kept at the CD outside can be used as also that auxiliary data connects and use flexibly, and it is the same that this advantage and front were carried.

Fig. 5 b is the synoptic diagram when a plurality of auxiliary data flows among Fig. 5 a form separately file independently respectively.For example: subtitle file #1 (subtitle clip 1) is the subtitle that shows in English; Subtitle file #2 (subtitle clip 2) is the subtitle that shows with Korean; Subtitle file #n (subtitle clipn) is used for the sub-audio of slide show.

Described all auxiliary data file all are to rely on son in the played file to play bar to specify and play management, below just the concrete playing management method of described son broadcast bar is described in detail with reference to Fig. 6 a and Fig. 6 b.

Relevant therewith, Fig. 6 a is that the son broadcast bar of management auxiliary data among the present invention is recorded in the syntactic structure synoptic diagram in the CD.Fig. 6 b is the figure hoist pennants that maximum that pre-stator is play the auxiliary data flow that bar manages can write down quantity.

At first, Fig. 6 a is a syntactic structure synoptic diagram of playing bar at the son that auxiliary datas such as subtitle related to the present invention manage.In the present invention, son is play that bar information (" SubPlayItem () ") is defined and is used the file unit that is used for playing the management information of auxiliary datas such as subtitle as record flexibly.

That is, in playing bar information, son includes stream file " Clip-information-file-name " that manages by correlator broadcast bar and the zero-time (" SubPlayItem-In-time ") and the zone of concluding time (" SubPlayItem-Out-time ") of specifying relevant stream file substantially.

Simultaneously, " son the is play the bar type " zone of the kind of playing the auxiliary flow file that bar manages by correlator being carried out appointment also goes on record, and just it is defined as " son broadcast bar type=1 " if auxiliary data is called as " subtitle "; If being called as " sub-audio that is used for slideshow ", auxiliary data just it is defined as " son is play bar type=2 "; If being called as " secondary video ", auxiliary data just it is defined as " son is play bar type=3 "; If being called as " subgraph table ", auxiliary data just it is defined as " son is play bar type=4 ".And if a son is play the type that comprises a plurality of described auxiliary datas in the bar, just the kind of associated auxiliary data being combined defines, for example: just it is defined as " sub-broadcast bar type=5 " if be called as " subtitle+secondary video "; All included (situation shown in Fig. 5 a that Here it is) if comprise whole auxiliary data kinds that are defined of subtitle, just it is defined as " son is play bar type=x ".

Therefore apparent, can be expanded use according to the kind of the different multiple auxiliary datas of specification.

And, in son was play bar information, when described auxiliary data was registered as a plurality of stream file, the information that will discern this was recorded as the identifying information of 1 bit that is called " IS multiplex stream ", if " IS multiplex stream=1b " just represents that auxiliary data is registered as the situation of a plurality of stream files; If " IS multiplex stream=0b " just represents that auxiliary data is registered as the situation of a stream file.

So, value according to " IS multiplex stream " identifying information and " son is play the bar type " writes down relevant broadcast management information, for example: if " IS multiplex stream=0b " and " sub bar type=1 of playing ", the auxiliary data that relies on son broadcast bar to manage with regard to expression is made of a subtitle stream; " if IS multiplex stream=1b " and " sub bar type=1 of playing ", the auxiliary data that relies on son broadcast bar to manage with regard to expression is made of a plurality of subtitle streams; If IS is multiplex stream=1b " and " the sub bar type=x that plays ", the auxiliary data that relies on son broadcast bar to manage with regard to expression is made of whole auxiliary data flows.

Particularly, when the kind of associated auxiliary data comprises subtitle stream, " son is play the bar type " zone just will specify the information that has write down the subtitle number to be provided as " quantity of text subtitle " zone, will get in touch Fig. 6 b to this and describe in the back.

And, in playing bar information, son records " but n record the process identifier (Playable-PID-entries ()) " information, comprise that it shows as " (ref-to-stream-PID (k)) " zone (not shown) to being play the Process identifier information that bar is play by existing correlator in the stream file of managing in " but n record the process identifier " information.

But, as mentioned above, if the auxiliary data that relies on son broadcast bar to manage does not write down with MPEG2 TS form, " PID " just do not exist so, " son is play bar quantity " or relevant clip title zone etc. just replace described " (ref-to-stream-PID (k)) " zone, and " but n record the process identifier " (Playable-PID-entries ()) that in son is play bar information, comprised " in the information, can write down described multiple zone (not shown) selectively according to actual conditions

Fig. 6 b comprises among the present invention that the auxiliary data flow of subtitle stream and primary traffic are recorded in the CD or the figure hoist pennants of the maximum quantity in the specific broadcast unit.For example: if be that the center describes with " text subtitle stream " of the present invention, when " text subtitle stream " of the present invention when being used as auxiliary data, be not to be present in rely on to play in the main folder (main clip) that bar manages, it may reside in and relies on son to play in the subtitle file that bar manages, usually to flow occupied capacity than other much smaller for the occupied recording capacity of text subtitle stream, even thereby use the most probable number (Maximum number ofText Subtitle streams) of stream file, do not have what mistake yet.

If at length describe again, that is exactly that the size of text subtitle stream is about the 720k byte, nothing but about 1/70 of a demonstration graph surface low (about 50 megabyte), so can use maximum fluxion value, the maximum usage quantity of for example stipulating 1 byte area in the present invention is 255.

And, if subtitle is contained in the secondary video data, constitute each key element of secondary video data so, for example the maximum of video, audio frequency, demonstration chart and interactive chart etc. can write down quantity and just is inconjunction with and determined.If the maximum quantity of whole recordable stream files is 255, the maximum of subtitle can write down quantity and just decided by the value of (255-(1+xx+yy+zz)) so in this case.

Relevant therewith, the quantity information of the subtitle that is write down as (or play unit) in the appointment specific title that defines among Fig. 5 b, " quantity of text subtitle (number-of-Text-Subtitle) " zone is to be recorded in the maximum quantity scope of described text subtitle stream.Optical record-play device (Fig. 7) is the size that decides the impact damper that is used for playing the text subtitle of the value according to described " quantity of text subtitle " zone.

And, if " all summations (Sum of data sizes of totaltext subtitle streams) of the size of data of text subtitle stream " zone can define at the same time or separately with the maximum quantity of text subtitle stream.Because this situation that to be the size of the data of using define, so can set the size of optical record-play device internal inner ring according to it, this is the advantage of a subsidiary property.

In Fig. 6 b,, also can determine in many ways according to the mode of main folder decision to the auxiliary data flow except that described subtitle stream.Concrete numerical value is taken as minimum according to the rules, is necessary among the present invention the maximum allowable quantity of described auxiliary data flow is defined.

Fig. 7 is the structural representation of optical record-play device among the present invention.It consists of the following components basically: 1. pick-up 11, and it is responsible for reading the fileinfo that comprises interior recorded data of CD and subtitle broadcast management information; 2. control the servomechanism 14 of pick-up 11 actions; 3. information treatment part 13, and the broadcast information that it is responsible for receiving from pick-up 11 reverts to the value of information of wanting or the demodulates information that will write down is institute's tracer signal on the CD, transmits then; 4. be responsible for the interim storer 15 that stores described fileinfo; 5. control the microcomputer 16 of described action.These elements are collectively referred to as " recording played portion ".

And, in the present invention, for subtitle is play, impact damper 19 need be set to be come subtitle data is carried out preload and interim the storage, described impact damper is arranged on the front end of AV demoder usually, but is used for the interim rear end that is set at AV scrambler 18 through the impact damper 20 of AV scrambler 18 coded datas that stores.

Relevant therewith, employed storer 15 or impact damper the 19, the 20th among the present invention, identical " storage device " can be merged into one according to different purposes and use.

Relevant therewith, AV demoder 17 is responsible for output data is carried out final decoding under the control of control part 12, offers the user then.AV scrambler 18 is in order to carry out the function at CD recording signal, under the control of control part 12, input signal is transformed into the signal of specific format, for example: be transformed into the MPEG2 transport stream and offer signal processing part 13 in the recording played portion.

And, control part is the key element of control optical record-play device molar behavior, it is responsible for controlling and reads son play bar information from the stored fileinfo of storer, relies on after son plays the subtitle that bar manages reading then, carries out the playback action of relevant subtitle.Especially after deciding the size of the impact damper that is about to the relevant subtitle of preload by described subtitle broadcast management information, give the suitable zone of its allocated size and after the subtitle of will being correlated with is preloaded into impact damper, according to user's subtitle broadcast request, the playback action of subtitle behind the described preload is controlled.

+ in the art those of ordinary skill will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.

Claims (12)

1, a kind of document forming method of high density compact disc is characterized in that comprising:

Main AV stream and a plurality of subtitles streams same independently file relevant with main AV stream separated carry out record;

Described main AV stream is to rely on the broadcast bar to play management, and subtitle stream is to rely on son to play bar to play management;

The described maximum quantity that relies on son broadcast bar to play the subtitle stream of management presets, and writes down subtitle stream in presetting the scope of maximum quantity.

2, the document forming method of high density compact disc as claimed in claim 1 is characterized in that:

The maximum quantity of described subtitle stream is 255.

3, the document forming method of high density compact disc as claimed in claim 1 is characterized in that:

The maximum quantity of described subtitle stream is to connect with the quantity that relies on son broadcast bar to play other auxiliary data flows of management to be determined.

4, the document forming method of high density compact disc as claimed in claim 1 is characterized in that also comprising:

The information relevant with the described quantity that is recorded subtitle stream has been carried out record.

5, the document forming method of high density compact disc as claimed in claim 1 is characterized in that:

Described a plurality of subtitle stream can be registered as separately independently file.

6, the document forming method of high density compact disc as claimed in claim 1 is characterized in that:

Described a plurality of subtitle stream can be registered as a file.

7, the document forming method of high density compact disc as claimed in claim 4 is characterized in that:

The described information relevant with the quantity that is recorded subtitle stream is write down is that document forming method by described CD writes down.

8, a kind of document forming method of high density compact disc is characterized in that comprising:

Main AV stream is recorded as separately independently file respectively with the auxiliary data flow relevant with main AV stream;

Described main AV stream relies on the broadcast bar to play and manage, and auxiliary data flow relies on son to play bar and plays and manage;

Play in the bar at described son, writing down embodiment and whether had a plurality of information of being managed auxiliary data flow by management auxiliary data kinds of information and expression.

9, the document forming method of high density compact disc as claimed in claim 8 is characterized in that:

One of kind of the auxiliary data that described son broadcast bar manages is the text subtitle.

10, the document forming method of high density compact disc as claimed in claim 8 is characterized in that:

In described son broadcast bar, include the stream file information that to play.

11, a kind of document play-back method of high density compact disc is at first to read the fileinfo that is loaded in the CD, and then plays the method for CD with reference to the fileinfo read, it is characterized in that comprising:

Son from described fileinfo is play bar information and is begun, reads to rely on son to play the subtitle broadcast management information that bar manages, and then the playback action of the subtitle of being correlated with.

12, a kind of file logging playing device of high density compact disc is characterized in that comprising following component part:

1. the storage device that management information temporarily stores play in the subtitle of reading from be loaded CD;

2. control part, be responsible for playing management information from described subtitle, the size of soon loading the storage device of relevant subtitle is distributed, and after into described storage device reloaded in the subtitle of will being correlated with, play the requirement of subtitle according to the user and control the playback action of carrying out described subtitle of being reloaded.

Images