CN101083120B - Method for reproducing multi-angle data - Google Patents
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- CN101083120B CN101083120B CN2007101125644A CN200710112564A CN101083120B CN 101083120 B CN101083120 B CN 101083120B CN 2007101125644 A CN2007101125644 A CN 2007101125644A CN 200710112564 A CN200710112564 A CN 200710112564A CN 101083120 B CN101083120 B CN 101083120B
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- 238000013507 mapping Methods 0.000 claims description 17
- 230000008859 change Effects 0.000 description 19
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 230000009191 jumping Effects 0.000 description 3
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10916—Seeking data on the record carrier for preparing an access to a specific address
- G11B2020/10925—Seeking data on the record carrier for preparing an access to a specific address involving an inter-layer jump, i.e. changing from one recording layer to another
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1232—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc sector, i.e. the minimal addressable physical data unit
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
An information storage medium on which multi-angle data is recorded includes at least two clips in each of which video object data for an angle of the multi-angle data is recorded. The at least two clips are recorded in contiguous areas of the information storage medium.
Description
The application be that October 14, application number in 2003 are 200380101358.3 the applying date, denomination of invention divides an application for the application for a patent for invention of " information storage medium and record and reproducer with the structure that is used for data of multiple angles ".
Technical field
The present invention relates to a kind of information storage medium and record and reproducer with the structure that is used for data of multiple angles.
Background technology
Digital multi-purpose disk (DVD) is the representative example that can write down the conventional information storage media of data of multiple angles thereon.Data of multiple angles is recorded on the DVD by using interleave method, and with this method, data are divided into a plurality of unit and these unit by record alternately.
Below, the video data structure as the DVD of traditional multimedia storage medium is described with reference to the accompanying drawings.
Fig. 1 represents the data structure of DVD.With reference to Fig. 1, DVD is divided into Video Manager (VMG) zone and a plurality of video title sets (VTS) zone.Be stored in the VMG zone about video title information and the menu information that is used for video title, and video title data is stored in a plurality of VTS zone.Usually, the VMG zone comprises two or three files, and each VTS zone comprises three to 12 files.
Fig. 2 represents the data structure in VMG zone.With reference to Fig. 2, the VMG zone comprises: comprise about the video manager information (VMGI) of the additional information in VMG zone zone, comprise video object set (VOBS) zone and VMGI backup zone about the object video information of title menu.Each of VMGI zone, VOBS zone and VMGI backup zone exists as file.Yet it is optional that the VOBS zone is included in the VMG zone.In some cases, the VOBS zone can not form in the VMG zone.
Each VTS zone comprises as the heading message and the object video information VOBS that reproduce unit.A plurality of titles can be recorded on the VTS zone.
Fig. 3 represents the data structure in VTS zone.With reference to Fig. 3, the VOBS of Video Title Set Information (VTSI), menu screen, the VOBS of video title set and VTSI Backup Data are recorded in the VTS zone.For the display menu screen, the record of VOBS is optional.Each VOBS is divided into a plurality of object video VOB and primitives (cell) as the record unit.A VOB comprises a plurality of primitives.Master record unit in the present invention is a primitive.
In DVD, come record-playback unit with hierarchy.Title is formed on the superiors of hierarchy.Usually, title is linked at least one program chain (PGC).At first reproduced PGC as one of a plurality of PGC is called as inlet PGC.Fig. 4 represents to be linked to the title of a PGC, and PGC promptly enters the mouth.Fig. 5 represents to be linked to the title of a plurality of PGC.After reproducing PGC as shown in Figure 5, select and when reproducing one of a plurality of PGC, be used for determining the order of the PGC of selected and reproduction can be stored in DVD.The order that control is reproduced is navigation.Be used for determining that the order of navigation is comprised in program chain information (PGCI).
Fig. 6 represents the data structure of PGC.With reference to Fig. 6, PGC is stored among the PGCI as message structure.PGCI comprises: the preceding order (pre-command), post command (post-command) and a plurality of programme information that comprise navigation command.Preceding order was performed before reproducing PGC, and post command is performed after this reproduction.Each program comprises a plurality of primitive information.The primitive that is included in the program is linked to each primitive that is included in as among the VOB of record unit.Each primitive promptly reproduces unit, and the cell command that provides after it reproduces is provided.PGCI is the hierarchical description as the PGC that reproduces unit, and has the message structure that will be linked to as the primitive of basic reproduction unit as the primitive of master record unit.
Specifically, PGC is a plurality of links as the primitive that reproduces unit.Here, but these a plurality of primitive angulation pieces.
Fig. 7 represents the structure of angle block gauge.With reference to Fig. 7, angle block gauge is constructed by this way, and promptly a plurality of primitive parallel arranged are so that only one of these primitives can be reproduced.The primitive of angulation piece has the identical recovery time.Each of these primitives is corresponding to special angle.If as the primitive angulation piece that reproduces unit, then the data of special angle are divided into interleaved units (ILVU) by the use interleave method and are recorded in as on VOB that writes down unit and the primitive as the record unit.
Fig. 8 represents when not using the multi-angle support as the VOB of record unit and the structure of primitive.With reference to Fig. 8, VOB is by sequential storage and be recorded in the adjacent block of information storage medium, and this adjacent block is adjacent record space.Yet as shown in FIG. 9, when not using multi-angle and support, the VOB of each angle and primitive thereof are recorded among the ILVU on the block interleaved by using interleave method.As a result, the data of special angle are not recorded on the adjacent posting field.That is to say, angle-data by using interleave method by order, record alternately.
Fig. 9 represents to use interleave method order and two angle-datas of record alternately.With reference to Fig. 9, each ILVU has the same reproduction time.The data volume that is recorded can be changed according to the type of the compression method that uses.Under the situation of intercrossed data,, must jump to the ILVU of hope in order to reproduce the data of the angle that the data that are used for an angle or reproduction be used to change.For example, in order to be reproduced in the data of first angle, must detect the data that in ILVU, are used for first angle.For this reason, video object bit stream comprises position and big or small data NXT_ILVU_SA and the NXT_ILVU_SZ that indication belongs to the next ILVU data of bit stream in the structure that Figure 11 shows.After reproducing the ILVU data, use NXT_ILVU_SA and NXT_ILVU_SZ to jump to next ILVU data.In order during data reproduction, to change angle, must jump to the position of the data of the angle that is used to change.The scope of jumping is determined in ILVU.
Figure 10 represents to jump in view of primitive the data of the angle that is used to select.With reference to Figure 10, even the user sends the order that changes angle certain time during reproducing the ILVU data, view data subsequently still can not suspended ground and be reproduced to be used for seamless change.This realizes by the following method: at first finish the reproduction of ILVU data, follow link by the ILVU data that jump to the angle that is used to change, and reproduce the ILVU data of the angle that is used to change.About the information of the position of ILVU data by multiplexed and be comprised in the bit stream of the video object data that uses the interleave method record.
Figure 12 represents to specify the position of the ILVU data that are used for nine angles and the structure (n is the natural number between 1 and 9) of the information SML_AGL_Cn_DSTA that is comprised in video object bit stream of size.The maximum quantity of the angle of being supported by DVD is 9.Data SML_AGL_Cn_DSTA provides information about the ILVU data that are used for angle #n by the link in current I LVU data.After the reproduction of current I LVU data, can current angle be changed to the angle of hope and the data of the angle that reproduction is used to wish by using data SML_AGL_Cn_DSTA.
Be used for the DVD editing process that data of multiple angles is supported, the image of taking in different angles is compressed to form several bit streams with data of same reproduction length.Then, bit stream is formed by the use interleave method and information is inserted in each bit stream, and this allows during data reproduction with reference to other angles.Correspondingly, video object data is recorded in DVD upward so that angle can be changed during data reproduction.
Yet, if data of multiple angles is by using interleave method and be divided into a plurality of unit and be stored among the DVD, this data of multiple angles not by continuous recording in the adjacent area of DVD.Therefore, for the successively reproducing of the data that are used for angle, reproducer need move its position many times with reading of data.Specifically, if reproducer reproduces data from CD or hard disk, then this equipment spends quite a lot of time and changes its position.Also exist bit rate constraints to be offset with the time delay that compensation causes when this equipment changes its position to compression bit stream.
Summary of the invention
The invention provides a kind of information storage medium and equipment thereof, in this data structure, can carry out random access and need not consider the position of data of multiple angles with data structure.
To be partly articulated other aspect of the present invention and/or advantage in the following description, by describing, it can become clearer, perhaps can understand by implementing the present invention.
According to an aspect of the present invention, provide a kind of information storage medium that writes down data of multiple angles thereon, having comprised: at least two montages, record is used for the video object data of an angle of data of multiple angles in each at it.These at least two montages are recorded in the adjacent area of information storage medium.
The video object data that is used for each angle can comprise: a plurality of jumps are to make the video object data of different angles do not suspended the accessing points that ground reproduces; And additional information, comprise jump information.
Video object data can comprise clip information, and this clip information comprises about the additional information of montage and jump information.
Jump information can comprise for the starting point of each jump of this montage and can be stored in the clip information with sheet form.
But clip information can comprise the entry point information of the point of appointment random access, and jump information is added to entry point information and specify each entrance whether can be used as jump.
Clip information can comprise: jump mapping comprises about montage can being operatively coupled to the information of jump of the montage of different angles by it.
Distance between the position of jump and the adjacent jump can be determined, and when the montage reproduction period jumped between montage, montage can not suspended ground and reproduce with box lunch.
Information storage medium can also comprise it, and each is linked to a plurality of PlayList of the one or more PlayItem of angulation piece, and each PlayItem can be the part of montage and the start and end time of indicating this montage.
Each of a plurality of PlayItem can be corresponding to an angle of data of multiple angles.
Each PlayList can comprise the additional information about angle, and each PlayList can be the information of the different angles of data of multiple angles.
According to a further aspect in the invention, provide a kind of reproduction to be recorded in video object data by the reproducer that with the montage is the data on the unit record information storage medium therein, this montage is separated to be recorded in the adjacent area of information storage medium and comprises information about the video object data corresponding with each angle of data of multiple angles, this reproducer comprises: detecting device, detect relevant montage; And reader, when multi-angle data reproducing, read and the adjacent area of information reproduction storage medium in detected montage.
The video object data that is used for an angle can comprise that the video object data that is used in different angles can not suspended a plurality of jumps that ground reproduces, jump information can be used as additional information and is recorded on the information storage medium, two jumps can be indicated the position of the montage in same reproduction time district, and when needing angle to change at the montage reproduction period, this equipment can jump to the montage that is used for another angle from the montage that is used for an angle from a jump, with multi-angle data reproducing.
Each video object data can comprise clip information, and this clip information provides about the additional information of montage and comprises the jump information that detecting device detects.
This equipment can comprise: the jump estimator, estimate where the jump of montage that its information is recorded in the identical point of table is connected to each other; Be connected the jump detecting device, detect the jump that is connected of the montage of just reproduced montage and the angle that is used to change.When the reproduction period in montage changed angle, this equipment can reproduce montage at detected jump.Jump information can comprise the information for the starting point of each jump, and is stored in the clip information with sheet form.When the reproduction period in montage changes angle, estimator can be estimated the jump of montage, connect the jump detecting device can detect current just reproduced montage and the angle that is used to change montage the jump that is connected and in detected jump reproduction montage.
This equipment can comprise: the jump estimator, estimate where the jump that its information is recorded in the montage of the position identical with entry point information is connected to each other; With the jump detecting device, detect the jump that connects.When angle changed, reader can reproduce montage at detected jump.But clip information can comprise the entry point information of random access, and jump information can be added to entry point information to specify relevant entrance whether as jump.When angle changed, the jump estimator can estimate that the jump that its information is recorded in the montage of the position identical with entry point information is connected to each other, and the jump detecting device can detect the jump of connection, and reader can reproduce montage at detected jump.
Video object data can comprise jump information as a plurality of montages that are used for a plurality of angles, and the jump positional information of each montage can be included in the common jump information in proper order with sheet form.
Distance between the position of each jump and the adjacent jump can be determined, and when the montage reproduction period jumped between montage, montage can not suspended ground and reproduce with box lunch.
Data of multiple angles can comprise it, and each is linked to a plurality of PlayList of the one or more PlayItem of angulation piece, and each PlayItem can be the part of montage and the start and end time of indicating this montage.
Data of multiple angles can comprise about the information of PlayItem and PlayList and can be registered as about reproducing the information of unit, each PlayItem can indicate montage or its part, each PlayList can be recorded with corresponding with each angle, each PlayItem can be corresponding with each montage, and each PlayList can have a plurality of PlayItem.
Each PlayList can comprise the information about corresponding angle, and reader can reproduce the PlayList corresponding with related angle.
According to a further aspect in the invention, provide a kind of being used for that data of multiple angles is recorded in recording unit on the information storage medium that wherein can carry out random access, this recording unit comprises: register is recorded in the adjacent area of information storage medium by the video object data that uses the noninterlace method will be used for each angle of data of multiple angles with montage as unit; And dispenser, video object data is divided into a plurality of clip unit.
This equipment can comprise the jump creator that is used to create a plurality of jumps except that the video object data that is used for each angle, and register can be recorded as additional information with the information about these a plurality of jumps.
This equipment can comprise the clip information creator that is used to create the clip information that is used for montage except that video object data, and montage is the record unit, and clip information can comprise jump information.
Jump information can comprise for the information of the starting point of the jump of each montage and can be used as to be shown to be stored in the clip information.
But clip information can comprise the entry point information about the point of random access.Jump information can be added to entry point information to indicate each entrance whether as jump.
Jump information can be the montage that is used for data of multiple angles, and can be stored as the table of the position of the jump of specifying each montage in proper order.
The jump creator can be determined the position of jump and the distance between the adjacent jump, and when the montage reproduction period had been used for jump that angle changes and changes the position of reproducing, montage can be suspended ground and reproduce with box lunch.
Register can write down it, and each is linked to a plurality of PlayList of the one or more PlayItem of angulation piece, and each PlayItem can be the part of montage and the start and end time that can indicate this montage.
Register can write down the information about PlayItem and PlayList, and each PlayItem can be corresponding with montage separately, and each PlayList can have a plurality of PlayItem.
This equipment can comprise: the information adder, will add each PlayList that is recorded with corresponding with each angle to about the additional information of certain angle.
According to a further aspect in the invention, provide a kind of data of multiple angles is recorded in method on the information recording carrier, this method comprises: data of multiple angles is divided into the one or more montages of the different angles that are used for data of multiple angles; Each montage is divided into its each the jump unit of jump that begins to be designated as the interface between the sign montage; With montage is recorded in the adjacent area of information storage medium.
According to a further aspect in the invention, provide a kind of method from the information recording carrier multi-angle data reproducing, this method comprises: first montage of reproducing the video object data that comprises an angle that is used for data of multiple angles; Jump to the jump of second montage of the video object data that comprises another angle that is used for data of multiple angles with jump, to change angle from first montage.First and second montages are divided into the jump unit, each jump unit begin to be designated as the jump that is identified at the interface between the montage.Montage is recorded in the adjacent area of information storage medium.
Description of drawings
By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:
Fig. 1 represents the data structure of DVD;
Fig. 2 represents the data structure in VMG zone;
Fig. 3 represents the data structure in VTS zone;
Fig. 4 represents to be linked to the title of a PGC, the PGC that promptly enters the mouth, example;
Fig. 5 represents to comprise the example of title of the PGC of a plurality of links;
Fig. 6 represents the data structure of PGC;
Fig. 7 represents the structure of angle block gauge;
Fig. 8 represents when not using the multi-angle observation as the VOB of record unit and the structure of primitive;
Fig. 9 represents the angle-data that uses interleave method alternately to write down;
Figure 10 represents to jump in view of primitive the data of the angle that is used to select;
Figure 11 represents to have the structure of the information that is comprised in video object bit stream of interleaved units (ILVU) data that are used for angle # 1;
Figure 12 represents to be used for the structure of the information that is comprised in video object bit stream of a plurality of angles;
Figure 13 is illustrated in the relation between PlayList, PlayItem, montage (clip) information and the montage;
Figure 14 is illustrated in the relation between the jump unit and jump in the montage of audio/video (AV) stream;
Figure 15 represents to be used for a plurality of montages of data of multiple angles;
Figure 16 is illustrated in and jumps and make video object data can not suspended relation between the impact damper that reproduces on ground;
Figure 17 represents to have the PlayList of multi-angle structure;
Figure 18 represents the data structure according to the jump of first embodiment of the invention;
Figure 19 represents the data structure according to the jump of second embodiment of the invention;
Figure 20 represents the data structure according to the jump of third embodiment of the invention;
Figure 21 represents to have the example of PlayList of the PlayItem of angulation piece;
Figure 22 represents to be used for the example of the PlayList of different angles; With
Figure 23 represents the structure of the information of the angle corresponding with PlayList.
Embodiment
To be described in detail the embodiment of the invention now, its example shown in the accompanying drawings, wherein, identical label is represented same parts all the time.Below with reference to the accompanying drawings embodiment is described to explain the present invention.
According to embodiments of the invention, make it possible to realize the multi-angle support, so that angle-data is by using separately recording method but not interleave method is recorded on the information storage medium.In other words, the multi-angle support is implemented by the adjacent posting field that the bit stream that will be used for each angle-data is recorded in information storage medium.During data reproduction, realize that by following operation angle changes: the data that will be used for each angle are divided into jump unit (JPU), the start address of specifying JPU is as jump, and will be recorded as additional information about the information of the jump of each angle-data.
The element that is recorded in according to the information on the recording medium of the embodiment of the invention comprises:
(a) about the compression of each angle and the audio/video of coding (AV) stream;
(b) comprise information about audio/video (AV) stream of coding, attribute information for example, clip information file;
(c) indication is used to comprise the PlayItem of the recovery time of the time IN_time of element (a) and montage (b) and the reproducing part between the OUT_time;
(d) comprise the PlayList of at least one PlayItem; With
(e) therein with the jump mapping of the position of sheet form record jump.
Data of multiple angles is the video object data of the reproduction unit that comprises that a plurality of and certain recovery time is corresponding.That is to say that data of multiple angles comprises the data of being taken in different angles by several cameras.Usually, voice data is created as equal angular in different angles, but can differently be created in different angles.In a word, the video object data that reproduces in can distinguishing at one time is called as data of multiple angles, and the content of reproducing in can distinguishing at one time is called as the multi-angle content.
Therefore usually, video object data quantity is big, is stored as the bit stream of compression or transmits.The present invention uses as the montage of record unit with as the PlayList and the PlayItem that reproduce unit.Montage is corresponding with primitive as the record unit among the DVD, and PlayList and PlayItem are corresponding with program and primitive as the reproduction unit among the DVD respectively.
That is to say that according to the embodiment of the invention, AV stream is that unit record is in information memory cell with the montage.Usually, montage is recorded in the adjacent area of information storage medium.AV stream also is compressed and writes down to reduce the size of AV stream.When reproducing the montage of record, the characteristic that need be recorded in the clip information in each montage is to explain the video object data of compression.But clip information comprises the Voice ﹠ Video attribute of each montage and has entrance mapping about the information of the position of the entrance of random access.Under the situation of Motion Picture Experts Group (MPEG) video compression technology, the entrance is positioned at the I picture of intraframe coding.The entrance mapping mainly is used during the time search of the time detecting Data Position after data reproduction.
Figure 13 is illustrated in the relation between PlayList, PlayItem, clip information and the montage.With reference to Figure 13, PlayList reproduces unit substantially.In information storage medium, a plurality of PlayList have been stored according to the embodiment of the invention.A PlayList is linked to a plurality of PlayItem.Each PlayItem is the part of montage, more particularly, and the start and end time of the reproduction of indication in montage.Therefore, clip information is used to easily detect a part of wishing in the montage.
Below, the data structure and the record position of data of multiple angles are described with reference to the accompanying drawings.
Figure 14 is illustrated in the relation between the jump unit and jump in the montage AV stream.With reference to Figure 14, if montage representative at the video object data and the part data of multiple angles of special angle, then the montage starting point that is divided into a plurality of jumps unit and each jump unit is called as jump.Jump represents to be used for the point of certain montage of an angle, and this point is when at the reproduction period of this certain montage starting point or the point of destination when the montage that is used for different angles is jumped into or jumped back out in the montage that is used for different angles.Jump can be the entrance.Yet for seamless data reproduction, not all entrance all is set to jump, because the entrance is formed with about 0.5 second interval.
Figure 15 represents to be used for a plurality of montages of data of multiple angles.As shown in Figure 15, suppose that a plurality of montages with equal number jump link each other, each montage is recorded in the zones of different and the jump by the same reproduction time links each other.After the reproduction of jump, reproduce different montages for what finish this montage at the reproduction period of montage, detect the jump unit of this difference montage, this difference montage is corresponding with this jump unit, reproduces from corresponding jump unit, makes it possible to realize seamless, the successively reproducing of montage thus.In Figure 15, arrow is represented such process, wherein, the montage that is used for the third angle degree is at first partly reproduced, reproduction period first angle in the montage that is used for the third angle degree is selected, the montage that is used for first angle is reproduced, and is selected in the reproduction period m of the montage that is used for first angle angle, and it is reproduced to be used for the montage of m angle.When the user imports the order that changes angle, be that unit carries out this change with the jump unit.
According to embodiments of the invention, even when data are recorded in it in the discontinuous zones of different of the information storage medium that can carry out random access, still can be from information storage medium successively reproducing data when changing the position of reproducer within a certain period of time.In the present invention, the change of position is described to jump.Usually, in the electronic information storage medium such as storer, jumping does not need the other time.Yet under the situation such as the information storage medium of the CD that comes reading of data by mobile pick-up, jumping needs the other time.In addition, when the speed that reads video object data from information storage medium and the speed of reproducing the video object data read not simultaneously, even when the data in being recorded in adjacent area will be read and reproduce, information storage medium still need to compensate read and reproduction speed between the equipment of difference.According to embodiments of the invention, the equipment that provides the compensation of this difference is provided video object buffer.The data that read from information storage medium with certain speed are stored in the video object buffer, and these data are reproduced from this impact damper then.During data read, the speed that control data reads is very important, with overflow or the underflow that prevents video object buffer.Even video object data is by with variable bit rate (VBR) record, the use of video object buffer still makes it possible to realize the seamless-reproduced of data.
As shown in Figure 16, the size of each jump unit determines in the scope that the video object data that allows to be stored in video object buffer when jump to the montage of the video object data that is used for different angles is seamless-reproduced, and being reproduced in of next one jump unit that is used for these different angles buffer underflow takes place begun before.Jump in the other time of needs under the situation of reproducer of the jump that is used for different angles, the size of jump unit is determined by following condition, suppose that the longest hopping time is T_JUMP, the speed of reading of data is V_R, and the speed of reproduction video object data is V_O:
Jump cell size＞V_R*V_O*T_JUMP/ (V_R-V_O) (1)
In addition, the size of video object buffer must satisfy following conditions:
Buffer sizes (B)＞V_O*T_JUMP (2)
Figure 17 represents to have the PlayList according to the multi-angle structure of the embodiment of the invention.The PlayList of Figure 17 comprises a plurality of PlayItem with sequential organization and the angle block gauge PlayItem with multi-angle structure.Angle block gauge PlayItem comprises a plurality of PlayItem.Under the situation of angle block gauge PlayItem, when reproducing PlayList, only one of them PlayItem is reproduced.In addition, at the reproduction period of PlayItem, the PlayItem by the angle that select to change from angle block gauge PlayItem also reproduces the PlayItem that selects and can carry out angle and change.Usually, form the recovery time that the PlayItem of angle block gauge has equal length.According to embodiments of the invention, by the montage 2 to 4 of each PlayItem appointment of angle block gauge by staggered but be recorded in the adjacent area.In other words, montage 2 to 4 respectively be recorded in the zone by the identical mode of the montage of the PlayItem appointment that does not belong to angle block gauge.Yet the characteristics of montage 2 to 4 are jump information.
Below, three types jump data structure is described with reference to the accompanying drawings.
Figure 18 represents the jump data structure according to the montage that is used for angle of first embodiment of the invention.With reference to Figure 18, clip information also comprises the jump mapping except that the general information of prior art and entrance mapping.The jump information and the video object data that are included in the jump mapping are closely related.Therefore, jump information is included in the clip information data and additional information about montage is provided.
General information comprises following information:
-version_number: the version of clip information file.
-EPMap_start_address: the start address of the entrance mapping that the byte number that is begun by the first byte from clip information file is indicated.
-JPMap_start_address: the start address of the jump mapping that the byte number that is begun by the first byte from clip information file is indicated.If the value of JPMap_start_address is 0, then this means the montage relevant with clip information file be not be used for angle and this montage do not comprise information about the jump mapping.
-ClipInfo: the attribute of the AV stream file relevant with clip information file.
But the entrance mapping comprises about the time of the entrance of random access and the information of position.Jump mapping comprises the information of jump that can be operatively coupled to the montage of different angles about montage by it.According to embodiments of the invention, be included in the quantity of the jump manager information indication jump in the jump mapping and follow the quantity of the jump data entries after the jump manager information.Jump information is used to detect the position of each jump, the starting position of relevant montage.Jump information can be expressed as a plurality of bytes or some sectors.In addition, if video object data is encoded as mpeg transport stream, then each jump information can be expressed as some MPEG-TS groupings.
Figure 19 represents the data structure according to the jump of second embodiment of the invention.The data structure of the jump of Figure 19 represents to comprise the entrance mapping of jump information.Therefore, the advantage of the data structure of Figure 19 is that it stores jump information without any need for other space.As mentioned above, when video object data was encoded by using time-space compression such as MPEG, jump should be set to the entrance as the random access entrance.By will whether being incorporated into the entrance mapping as the information of jump about the entrance, jump information is by record easily.
Figure 20 represents the data structure according to the jump of third embodiment of the invention.Figure 20 is the diagrammatic sketch of jump map information structure of jump information that comprises the montage of angulation piece.This jump map information structure is collected dividually with the clip information structure.The jump map information comprises: jump manager information, the quantity and the quantity that is present in the jump in the montage of the montage of indication angulation piece; With the jump information of each montage, order is followed after the jump manager information.The jump map information structure makes it possible to easily to detect the position of the angle of hope.
Figure 21 represents to have the example of PlayList of the PlayItem of angulation piece.With reference to Figure 21, each PlayItem information comprises general PlayItem information and angle block gauge information.The angle block gauge information spinner will be specified whether angulation piece of corresponding PlayItem.The PlayItem of angulation piece must be by journal.At the reproduction period of PlayList, the PlayItem of the angulation piece of at least one selection is reproduced.At the reproduction period of the PlayItem of angulation piece, the PlayItem of another angulation piece can be reproduced.
The example of the PlayList of unit is reproduced in the conduct that Figure 22 represents to be used for different angles.With reference to Figure 22, each PlayList comprises the not single PlayItem of angulation piece.That is to say that each PlayList is corresponding to an angle.As shown in Figure 23, each PlayList comprises the angle block gauge information about angle.When user's selected angle or change angle, relevant PlayList is reproduced.
According to embodiments of the invention, data of multiple angles is recorded in the adjacent area of information storage medium with the record unit.Interface to the record unit that represents different angles is confirmed as jump, and is stored as additional information about the information of jump.Then, the information about the reproduction unit corresponding with the record unit is stored as multi-angle information.
According to the reproducer multi-angle data reproducing of the embodiment of the invention and have following advantage:
The first, if angle is changed, then the data of multiple angles data that can be read by the adjacent area from information storage medium and read can be reproduced.That is to say that data of multiple angles is used for the same procedure of non-data of multiple angles coding is encoded by use.Therefore, opposite with interleave method, do not need additional data and encoding operation to come successively reproducing to be used for the data of angle.
The second, comprise the jump information that makes it possible to be connected to the video object data that is used for angle block gauge as the montage of writing down unit.Change angle when being used for the video object data of current angle in reproduction, the reproducer reproduction is used for the video object data of current angle to next jump, reproduces the video object data of the angle that is used to change then from the jump corresponding with next jump.
The 3rd, when multi-angle information by with the angulation piece and belong to PlayList (referring to Figure 21) when reproducing a plurality of PlayItem record of unit, for the reproduction period at a PlayItem of angle block gauge changes angle, reproducer reproduce PlayItem to the immediate jump in current reproduction position of montage, the montage of reproducing the angle that is used to change then from this jump.If be recorded for the single PlayList of each angle as shown in Figure 22, then want that the PlayList of the angle that is used to change is detected and reproduced when the reproduction period of PlayList changes angle as the user.
Will be according to the recording unit of the embodiment of the invention such as the data of montage, about the information of jump with reproduce unit record on information storage medium.
Recording unit is determined the size of jump unit based on the maximum bit rate V_O of reading speed V_R, the hopping time T_JUMP of reproducer and video object data according to the preferred embodiment of the invention.Then, the jump cell size of Que Dinging is converted into the recovery time.Then, video object data is encoded so that random access point is set to larger than this recovery time or identical with this recovery time.Here, the interface of video object data is a jump.Usually, random access point is the starting point such as group of picture (GOP) in the time-space compressed encoding of MPEG.Therefore, each jump unit comprises a plurality of GOP.In addition, jump should be formed on the same reproduction time of each video object data in the district.
For each angle, the video object data of coding is recorded in the adjacent area of information storage medium.Information about the position of jump is registered as additional information.According to embodiments of the invention, can be registered as clip information about the information of the jump of each montage.
Then, the information about the reproduction unit that forms data of multiple angles is created and is recorded.For example, corresponding with each montage PlayItem formation multi-angle and PlayList are formed by PlayItem is linked each other.On the other hand, single PlayList can be corresponding with single angle.
Utilizability on the industry
As mentioned above, according to embodiments of the invention, the video object data that is used for data of multiple angles is divided into a plurality of unit and is recorded in the adjacent area of information storage medium under the situation of not using interleave method.Correspondingly, the planning of data area is easy to control and random access is easy to carry out, and thus, reads data of multiple angles effectively.
Though represented and described some embodiments of the present invention, the invention is not restricted to disclosed embodiment.Certainly, it should be appreciated by those skilled in the art that under the situation that does not break away from principle of the present invention that its scope limits by claim and equivalent thereof and spirit, can make amendment these embodiment.
Claims (3)
1. one kind is reproduced the method for the video object data of different angles from information storage medium, and described method comprises:
Read clip information from information storage medium;
Reproduce and the corresponding montage video-audio stream of the clip information that reads, wherein, each clip information includes the stomion mapping, but entrance mapping comprise comprise about the information of time of the entrance of random access and position and about the entrance whether as the information of jump, wherein, jump is such point: by jump, reproduce video object data from an angle to another angle
Wherein, at least two the corresponding montage video-audio of the video object data with different angles streams are recorded in the adjacent area of information storage medium, provide clip information from the independent zone of montage audio-visual stream.
2. the method for claim 1, wherein information storage medium comprises playlist information, and playlist information comprises at least one broadcast item.
3. method as claimed in claim 2, wherein, playlist information comprises that at least one has the broadcast item of angle block gauge information, wherein, angle block gauge information is specified whether angulation piece of corresponding broadcasts item.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020062479 | 2002-10-14 | ||
| KR20020062479 | 2002-10-14 | ||
| KR10-2002-0062479 | 2002-10-14 | ||
| US45255803P | 2003-03-07 | 2003-03-07 | |
| US60/452,558 | 2003-03-07 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2003801013583A Division CN1705997B (en) | 2002-10-14 | 2003-10-14 | Method for recording multi-angle data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101083120A CN101083120A (en) | 2007-12-05 |
| CN101083120B true CN101083120B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2003801013583A Expired - Fee Related CN1705997B (en) | 2002-10-14 | 2003-10-14 | Method for recording multi-angle data |
| CN2007101125644A Expired - Lifetime CN101083120B (en) | 2002-10-14 | 2003-10-14 | Method for reproducing multi-angle data |
| CN2008100912685A Expired - Lifetime CN101441883B (en) | 2002-10-14 | 2003-10-14 | Method for reproducing multi-angle data |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2003801013583A Expired - Fee Related CN1705997B (en) | 2002-10-14 | 2003-10-14 | Method for recording multi-angle data |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100912685A Expired - Lifetime CN101441883B (en) | 2002-10-14 | 2003-10-14 | Method for reproducing multi-angle data |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20040033663A (en) |
| CN (3) | CN1705997B (en) |
| MY (1) | MY147509A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1167978A (en) * | 1996-05-30 | 1997-12-17 | 三星电子株式会社 | Method for reproducing recording medium having data of multiple angles |
| CN1197572A (en) * | 1995-09-29 | 1998-10-28 | 松下电器产业株式会社 | Method and device for recording and reproducing interleaved bit stream on and from medium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2300535B (en) * | 1995-04-10 | 2000-03-01 | Quantel Ltd | Electronic video processing system |
| EP0677842B2 (en) * | 1993-10-29 | 2001-01-10 | Kabushiki Kaisha Toshiba | Multi-scene recording medium, reproduction method and reproduction apparatus |
| TW436777B (en) * | 1995-09-29 | 2001-05-28 | Matsushita Electric Ind Co Ltd | A method and an apparatus for reproducing bitstream having non-sequential system clock data seamlessly therebetween |
| KR100192514B1 (en) * | 1996-06-29 | 1999-06-15 | 구자홍 | Multi-angle selecting device and the method for a dvd |
| JP4009922B2 (en) * | 1999-06-07 | 2007-11-21 | ソニー株式会社 | Editing apparatus and editing method |
| JP2002216464A (en) * | 2001-01-23 | 2002-08-02 | Toshiba Corp | Microphone mounting type recorder and microphone mounting type recorder apparatus |
-
2002
- 2002-10-15 KR KR1020020062882A patent/KR20040033663A/en not_active Application Discontinuation
-
2003
- 2003-10-06 MY MYPI20033788A patent/MY147509A/en unknown
- 2003-10-14 CN CN2003801013583A patent/CN1705997B/en not_active Expired - Fee Related
- 2003-10-14 CN CN2007101125644A patent/CN101083120B/en not_active Expired - Lifetime
- 2003-10-14 CN CN2008100912685A patent/CN101441883B/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197572A (en) * | 1995-09-29 | 1998-10-28 | 松下电器产业株式会社 | Method and device for recording and reproducing interleaved bit stream on and from medium |
| CN1167978A (en) * | 1996-05-30 | 1997-12-17 | 三星电子株式会社 | Method for reproducing recording medium having data of multiple angles |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-216460A 2002.08.02 |
| JP特开平11-110950A 1999.04.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101441883B (en) | 2012-11-07 |
| CN101441883A (en) | 2009-05-27 |
| CN1705997A (en) | 2005-12-07 |
| CN101083120A (en) | 2007-12-05 |
| CN1705997B (en) | 2010-07-21 |
| KR20040033663A (en) | 2004-04-28 |
| MY147509A (en) | 2012-12-31 |
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Application publication date: 20071205 Assignee: Shanghai Epic Music Co.,Ltd. Assignor: Blue light United Co.,Ltd. Contract record no.: 2016990000555 Denomination of invention: Method for reproducing multi-angle data Granted publication date: 20110119 License type: Common License Record date: 20161228 |
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