JPH08287654A - Reproducing device for reproducing data recorded in recording medium and its reproducing method - Google Patents

Abstract

PURPOSE: To enable a user to select audio stream without any confusion by eliminating meaningless audio streams during independent reproducing when one of a plurality of audio streams is selected. CONSTITUTION: Each audio data is reproduced from an optical disk 10, in which a plurality of audio streams are recorded in a video data area and each audio stream attribute necessary for reproducing each audio stream is recorded in the file control table of a file control information area. A master stream is determined from each audio stream attribute read from the optical disk 10 and each audio stream attribute other than this master stream is displayed on a monitor part 6 as an audio selection screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus and a reproducing method for reproducing data recorded on a recording medium such as an optical disk.

[0002]

2. Description of the Related Art In recent years, a moving picture compatible optical disk reproducing apparatus for reproducing an optical disk in which data such as video (video data) and audio (audio data) is digitally recorded has been developed. For example, reproduction of movie software and karaoke. Widely used as a device.

In recent years, a data compression method for moving images has been internationally standardized as an MPEG (Moving Picture Expert Group) method. The MPEG system is a system for variably compressing data such as video (video data) and audio (audio data).

In addition, the MPEG2 system is currently being internationally standardized, and along with this, a system format compatible with the MPEG2 compression system is also defined as an MPEG2 system layer.

Further, one optical disk is divided into a plurality of files, and different moving images can be recorded in each file unit, and a plurality of audio streams are set in each file unit so that the user can arbitrarily select. It has become.

Audio stream attributes at the time of reproduction are individually set in each of the above audio streams. This audio stream attribute is, for example, M
Audio compression mode indicating PEG1 compliant, Dolby AC3 or linear PCM audio, audio mode indicating stereo, monaural or surround, audio type indicating music or language, mixing possible or not (master) or possible (slave) And a master stream number indicating a mixable master stream number when the stream is a slave, a language code when the audio type is language, and the like.

[0007] The audio stream can be recorded in one file by mixing an audio stream that can be reproduced independently and a slave stream that is combined with another audio stream.

However, even in the case of an audio stream that can be played back independently, it may not be so meaningful depending on the title, such as the background sound of a movie. There is a drawback in that even if the audio stream having no meaning is reproduced and displayed on the menu screen and the selection is made possible, it causes confusion for the user.

Further, when the file is changed or the optical disk is exchanged, the audio stream of the same language is not always selected, and the audio stream must be selected again each time.

[0010]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and when selecting one of a plurality of audio streams, an audio stream that is meaningless even if reproduced independently is selected. An object of the present invention is to provide a playback device that enables selection except the above and allows a user to select an audio stream without confusion.

It is another object of the present invention to provide a reproducing apparatus in which an audio stream of the same language is selected when a file is changed or an optical disk is exchanged, and it is not necessary to reselect the audio stream.

[0012]

The reproducing apparatus of the present invention comprises:
A management area is formed in a part of the area and a data area is formed in another area. In the data area, a plurality of audio streams of an audio stream that is played alone and an audio stream that is played by combining with another audio stream A stream is recorded, and in the management area, an audio stream is reproduced from a recording medium in which the audio stream attributes necessary for reproducing each audio stream in the data area are individually recorded. A reading unit that reads the audio stream of the data area and the audio stream attribute of the management area of the recording medium, and each audio stream is reproduced independently by the plurality of audio stream attributes read by the reading unit. Judgment means for deciding whether or not the audio stream is synthesized with the audio stream and played back. Display means for displaying a plurality of audio stream attribute read by the reading means for the audio stream is determined audio stream in the reproduction,
Selection means for selecting an audio stream to be reproduced by the audio stream attribute displayed on the display means, extraction means for extracting the audio stream selected by the selection means from the audio stream read by the reading means, and this extraction It is composed of conversion means for converting the audio stream extracted by the means into a reproduction output based on the audio stream attribute for the audio stream selected by the selecting means.

In the reproducing apparatus of the present invention, a management area is formed in a part of the area and a data area is formed in the other area. In the data area, an audio stream to be reproduced alone with video data and another audio stream. A recording medium in which a plurality of audio streams of an audio stream to be synthesized and reproduced are recorded, and the audio stream attributes necessary for reproducing each audio stream in the data area are individually recorded in the management area. In which the video data and the audio stream are reproduced from the recording medium, a reading unit that reads the video data and the audio stream in the data region of the recording medium and the audio stream attribute in the management region of the recording medium, and a plurality of reading units read by the reading unit. The audio stream attribute allows each audio stream to be played separately from other audio streams. Determination means for determining whether the audio stream is generated and reproduced, and display means for displaying a plurality of audio stream attributes read by the reading means for the audio stream determined to be the audio stream independently reproduced by the determination means Selecting means for selecting an audio stream to be reproduced according to the audio stream attribute displayed on the display means; extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means; First conversion means for converting the audio stream extracted by the means into reproduction output based on the audio stream attribute for the audio stream selected by the selection means, and converting the video data read by the reading means into reproduction output. The second conversion means

In the reproducing apparatus of the present invention, a management area is formed in a part of the area and a data area is formed in the other area. A plurality of files are recorded in the data area, and each file has a single file. A plurality of audio streams of an audio stream to be played back in the above and an audio stream to be played by being combined with another audio stream are recorded, and the audio necessary for playing back each audio stream in the data area is recorded in the management area. In a device for reproducing an audio stream from a recording medium in which stream attributes are individually recorded, a reading means for reading the audio stream in the data area of the recording medium and the audio stream attribute in the management area of the recording medium,
Judgment means for judging whether each audio stream is an audio stream to be reproduced independently and an audio stream to be reproduced by being combined with another audio stream according to a plurality of audio stream attributes read by the reading means. Display means for displaying a plurality of audio stream attributes read by the reading means for an audio stream determined to be an independently reproduced audio stream, and an audio stream to be reproduced is selected according to the audio stream attributes displayed on the display means. Selecting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means, and the audio stream extracted by the extracting means for the audio stream selected by the selecting means. Based on audio stream attributes Te, and a converting means for converting the reproduction output.

In the reproducing apparatus of the present invention, a management area is formed in a part of the area and a data area is formed in the other area. A plurality of files are recorded in the data area, and each file contains A plurality of audio streams of video data, an audio stream that is played alone and an audio stream that is played by being combined with other audio streams are recorded,
In the management area, which reproduces video data and an audio stream from a recording medium in which audio stream attributes necessary for reproducing each audio stream in the data area are individually recorded, the data area of the recording medium Reading means for reading the video data, the audio stream, and the audio stream attribute of the management area of the recording medium, and the audio streams in which each audio stream is independently reproduced by the plurality of audio stream attributes read by the reading means. Determination means for determining whether or not the audio stream is reproduced by being synthesized with the audio stream of, and a plurality of audio stream attributes read by the reading means with respect to the audio stream determined to be the audio stream that is independently reproduced by this determination means. Display means to be displayed, audio sound displayed on this display means Selecting means for selecting an audio stream to be reproduced by the ream attribute, extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means, and selecting the audio stream extracted by the extracting means And a second conversion unit for converting the video data read by the reading unit into a reproduction output, based on an audio stream attribute for the audio stream selected by the unit. There is.

In the reproducing apparatus according to the present invention, a management area is formed in a part of the area and a data area is formed in another area. A plurality of files are recorded in the data area, and each file has a single file. A plurality of audio streams of an audio stream to be played back in the above and an audio stream to be played by being combined with another audio stream are recorded, and the audio necessary for playing back each audio stream in the data area is recorded in the management area. In a device for reproducing an audio stream from a recording medium in which stream attributes are individually recorded, a reading means for reading the audio stream in the data area of the recording medium and the audio stream attribute in the management area of the recording medium,
First judging means for judging whether each audio stream is an audio stream to be reproduced independently and an audio stream to be reproduced by being combined with another audio stream according to a plurality of audio stream attributes read by the reading means, First
Display means for displaying a plurality of audio stream attributes read by the reading means for the audio stream judged to be reproduced independently by the judging means, and reproduced by the audio stream attribute displayed on the display means. Selection means for selecting an audio stream, storage means for storing a language code corresponding to the audio stream selected by the selection means, a new storage medium when the storage medium is replaced or a file to be reproduced is changed, or The second determination means for comparing the language code corresponding to each audio stream of the new file with the language code stored in the storage means and determining the audio stream corresponding to the matching language code, by the selection means. Judgment is made by the selected audio stream or the second judging means. Extracting means for extracting from the audio stream read by the reading means an audio stream,
And a conversion for converting the audio stream extracted by the extracting means into a reproduction output based on the audio stream attribute for the audio stream selected by the selecting means or the audio stream attribute for the audio stream judged by the second judging means. It is composed of means.

[0017]

According to the present invention, a management area is formed in a part of the area and a data area is formed in the other area. In the data area, an audio stream to be reproduced independently and another audio stream are combined and reproduced. A plurality of audio streams of the audio stream are recorded, and the audio stream is reproduced from the recording medium in which the audio stream attributes necessary for reproducing the respective audio streams of the data area are individually recorded in the management area. In the above, the reading means reads the audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium, and each audio stream is independently reproduced by the read plural audio stream attributes. Determines whether the audio stream is an audio stream that will be played back by combining it with another audio stream, and plays this independent sound. A plurality of audio stream attributes read by the reading means for the audio stream determined to be a stream are displayed, an audio stream to be reproduced is selected by the displayed audio stream attribute by the selecting means, and the selected audio stream is selected. Is extracted from the audio stream read by the reading means, and the extracted audio stream is converted into a reproduction output based on the audio stream attribute of the audio stream selected by the selecting means.

According to the present invention, a management area is formed in a part of the area and a data area is formed in another area.
A plurality of audio streams, that is, an audio stream that is independently played back with video data and an audio stream that is played back after being combined with another audio stream are recorded, and each audio stream in the data area is played back in the management area. Which reproduces the video data and the audio stream from the recording medium in which the audio stream attributes necessary for the above are individually recorded, the video data and the audio stream in the data area of the recording medium and the audio stream attribute in the management area of the recording medium. Is read by the reading means, and it is determined by the read plurality of audio stream attributes whether each audio stream is an audio stream to be played alone and an audio stream to be played by being combined with another audio stream. The above reading for the audio stream determined to be the audio stream to be played back A plurality of audio stream attributes read by the column are displayed, an audio stream to be reproduced is selected by the displayed audio stream attribute by the selection means, and the selected audio stream is read by the reading means. Based on the audio stream attribute for the audio stream selected by the selecting means,
The video data read by the reading means is converted into the playback output.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An optical disk reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a block of an optical disc reproducing apparatus for reproducing data from an optical disc according to an embodiment of the present invention, and FIG. 2 shows a block of a disc drive section for driving the optical disc shown in FIG. 3 shows the structure of the optical disc shown in FIGS. 1 and 2.

In the optical disk reproducing apparatus shown in FIG. 1, the user operates the key operation section and the display section 4 to reproduce the recorded data, that is, the video data, the sub-picture data and the audio data from the optical disk 10. Is converted into an audio (sound) signal and a video signal and reproduced as video and sound by the monitor unit 6 and the speaker unit 8 outside the apparatus.

As already known, the optical disc 10 has various structures, but as shown in FIG. 3, for example, a structure 18 in which a recording layer, that is, a light reflection layer 16 is formed on a transparent substrate 14 is provided. A high recording density type in which a pair of structural bodies 18 are prepared and bonded together with an adhesive layer 20 so that the recording layer 16 is enclosed therein has appeared. In the optical disc 10 having such a structure, a center hole 22 into which the spindle of the spindle motor 12 is inserted is provided at the center, and a clamping area for holding the optical disc 10 at the time of rotation is provided around the center hole 22. 24 are provided.

An area from the clamping area 24 to the outer peripheral edge of the optical disk 10 is defined as an information recording area 25 in which information can be recorded on the optical disk 10. The optical disc shown in FIG. 3 has information recording areas 25 on both sides thereof. The outer peripheral area of each information recording area 25 is a lead-out area 26 in which information is not normally recorded,
Similarly, the inner peripheral area in contact with the clamping area 24 is similarly defined as a lead-in area 27 in which information is not normally recorded, and a space between the lead-out area 26 and the lead-in area 27 is a data recording area 28. It is set. In the recording layer 16 of the information recording area 25, normally, a track is continuously formed in a spiral shape as an area for recording data, and the continuous track is divided into a plurality of sectors. Is recorded. The data recording area 28 of the information recording area 25 is an actual data recording area, and as described later, management data, main image data, sub-image data, and audio data are similarly recorded as physical state changes such as pits. Has been done. In the read-only optical disc 10, a pit string is formed in advance on the transparent substrate 14 by a stamper, a reflective layer is formed by vapor deposition on the surface of the transparent substrate 14 on which the pit string is formed, and the reflective layer is formed as the recording layer 14. Will be done. Further, in the read-only optical disc 10, usually, no groove is provided as a track, and a pit row is defined as a track.

In the optical disc reproducing apparatus for reproducing data from such an optical disc 10, the optical disc 10
The optical disc drive unit 30 that drives the optical disc 1
0 is searched for in the light beam. That is, as shown in FIG.
The optical disc 10 is placed on a spindle motor 12 driven by a motor drive circuit 11, and is rotated by the spindle motor 12. Optical disc 10
An optical head, that is, an optical pickup 32 for condensing a light beam, that is, a laser beam on the optical disc 10 is provided below the optical disc 10. The optical head 32 is mounted on a guide mechanism (not shown) so as to be movable in the radial direction of the optical disk 10 in order to search the information recording area 25, particularly the data recording area 28, and is driven by the drive circuit 37. The feed motor 33 driven by the drive signal moves the optical disk 10 in the radial direction. The objective lens 34 is held on the optical disc 10 so as to be movable along its optical axis.
In response to the drive signal from the focus drive circuit 36, the focus lens is moved in the optical axis direction, the objective lens 34 is always maintained in the focus state, and a minute beam spot is formed on the recording layer 16. The objective lens 34 is held so that it can be finely moved in the radial direction of the optical disc 10, is finely moved in response to a drive signal from the track drive circuit 38, and is always maintained in a tracking state so that the recording layer 16 of the optical disc 10 is maintained. The upper track is tracked with a light beam.

In the optical head 32, the light beam reflected from the optical disk 10 is detected, and the detected detection signal is supplied from the optical head 32 to the servo processing circuit 44 via the head amplifier 40. The servo processing circuit 44 generates a focus signal, a tracking signal and a motor control signal from the detection signal, and supplies these signals to the drive circuits 36, 38 and 11, respectively. Therefore, the objective lens 34 is maintained in the focus state and the tracking state, the spindle motor 12 is rotated at a predetermined rotation number, and the light beam causes the track on the recording layer 16 to be a light beam, for example, a constant linear velocity. Tracked in. System CP
When a control signal as an access signal is supplied from the U section 50 to the servo processing circuit 44, a movement signal is supplied from the servo processing circuit 44 to the drive circuit 37, and the optical head 32 is moved along the radial direction of the optical disc 10. A predetermined sector of the recording layer 16 is accessed, reproduction data is amplified by the head amplifier 40 and output from the disk drive unit 30. The output reproduction data is stored in the data RAM section 56 via the system CPU section 50 and the system processor section 54 which are controlled by the program recorded in the system ROM and RAM section 52. The stored reproduction data is processed by the system processor unit 54 and classified into video data, audio data (audio data) and sub-picture data, and the video data, the audio data and the sub-picture data are respectively stored in the video decoder unit 58, It is output to the audio decoder unit 60 and the sub-picture decoder unit 62 and decoded. The decoded video data, audio data and sub-picture data are video signals as analog signals in the D / A and reproduction processing circuit 64,
The video signal and the sub-picture signal are supplied to the monitor section 6 and the audio signal is supplied to the speaker section 8 after being converted into the audio signal and the sub-picture signal and mixed. As a result, the video is displayed on the monitor unit 6 and the sound is reproduced from the speaker unit 8.

The system CPU unit 50 also has a character generator 66 controlled by the system CPU unit 50.
The character pattern corresponding to the character generator 66 according to the character code for the selection screen from the U section 50 is D / A
And a reproduction processing circuit 64. As a result, the D / A and reproduction processing circuit 64 converts the supplied character pattern into a video signal as an analog signal corresponding to the selected image for one screen and supplies it to the monitor unit 6. As a result, the image of the selection screen is displayed on the monitor unit 6.

The detailed operation of the optical disk device shown in FIG. 1 will be described later in detail together with the logical format of the optical disk 10 described next.

The data recording area 28 from the lead-in area 27 to the lead-out area 26 of the optical disk 10 shown in FIG. 1 has a logical format of ISO966.
It has a volume structure based on 0 as shown in FIG. This volume structure is composed of a volume management information area 70 and a file area 80 having a hierarchical structure. The volume management information area 70 is ISO966
The logical block numbers 0 to 23 determined based on 0 correspond to the system area 72 and the volume management area 74. The system area 72 is not usually defined as an empty area, but is provided for an editor who edits data to be recorded on the optical disk 10, for example, and realizes driving of the optical disk device according to the intention of the editor. A system program for this purpose is stored as needed. In the volume management area 74, volume management information for managing the disk information file 76 (hereinafter, simply referred to as the disk information file 76) of the file area 80 and a file 78 such as a movie file or a music file, that is, all the volume management information. The file recording position, recording capacity, file name, and the like are stored. In the file area 80, files 76 and 78 having file numbers 0 to 99 specified by logical block numbers after the logical block number 24 are arranged, and the file 76 having file number 0 is allocated as the disk information file 76. , File number 1 to file number 99
The files 78 up to are allocated as movie files, that is, video files or music files.

As shown in FIG. 5, the disc information file 76 is composed of a file management information area 82 and a menu video data area 84. In the file management information area 82, selectable information recorded on the entire optical disc 10 can be selected. File sequence information, that is, file management information for selecting a video or audio title is described. Further, in the menu video data area 84, image data of a menu screen for displaying a selection menu such as a title is stored as a cell unit menu data cell 90. That is, the menu video data area 8
As described in detail later, the menu video data of No. 4 is divided into units of a required size according to the purpose, and the disc 10
I menu cells 90 sequentially numbered from # 1 in the order of recording in the menu video data area 84 of
Has been defined as. The menu cell 90 stores video data, sub-video data, or audio data related to movie or audio title selection, program selection of each title, and the like.

As shown in FIG. 5, the file management information area 82 includes disc configuration information (DSINF: Disc Str).
structure information area 86 for storing structure information, menu structure information (MSINF: Menu Structu).
(re information) menu configuration information area 8
7. Cell information table (MCIT:
Menu Cell Information Table) 88 has three types of information areas, which are arranged in this order.

In the disc configuration information area 86, the number of movie files and music files recorded in the file area 80 of the disc 10, that is, the number of reproduction files 78 (as a parameter DSINF within the range of 1 to 99) is described. , A sequence (a series of data groups of video data including video, audio, sub-video, etc.) existing in each file 78, which will be described in detail later.
Further, hereinafter, it is simply referred to as a sequence. ), That is,
Information such as the number of titles (described as the parameter FSINF) is described.

In the menu configuration information area 87, the number of menu cells 90 of the menu video data area 84 recorded in the disc information file 76 (described as a parameter NOMCEL) and the titles existing in the disc. The starting cell number of the title menu cell 90 that constitutes a series of menu video data for selecting (is described as a parameter TMSCEL).
Information such as is described.

In the menu cell information table 88, cell information necessary for reproducing each menu cell 90 is defined in a set of i cell information areas 89 in which cell information is described in the order of cell numbers. This cell information table 88 has a file 76
Information such as the position of the cell 90 (described as the parameter MCSLBN by the offset logical block number from the head of the file) and the size (described as the parameter MCNLB by the number of logical blocks) is described.
Here, the disc configuration information (DSINF) and the menu configuration information (MSINF) are stored in the file management information area 8
2 consecutively, and the menu cell information table (M
CIT) 88 is aligned with the boundary of the logical block.

Music data or movie data of one or a plurality of titles is stored in movie files and music files 78 corresponding to file numbers 1 to 99. As shown in FIG. 6, each of the files 78 includes a file management information area 101 in which specification information for data included in the file 78, that is, management information (for example, address information and reproduction control information) is described. It has a file structure composed of a video data area 102 in which the video data of the file 78 (video, audio, sub-video data, etc. are simply referred to as video data) is described. In the video data area 102, the disc information file 76
Similar to the menu cell 90, the video data is divided into cell units, and the video data is arranged as j video data cells 105.

Usually, movie data or audio data of a title is represented as a set of continuous sequences 106. For example, a movie story
It is represented by a continuous sequence 106 corresponding to "start", "accept", "roll" and "conclude". Therefore, the video data area 102 of each file 78 is defined as a set of sequences 106 as shown in FIG. 7. Also,
Each sequence 106 is represented by a plurality of video programs (chapter) 107 corresponding to various scenes, and each video program 107 is composed of a plurality of video data cells 105. Each video cell 105 includes one image group (GOP: Group of Pict) which is a combination of a control pack (DSI) 92, a main video pack 93, a sub video pack 95 and an audio pack 98 as shown in FIG.
ure) is arranged in multiple groups. The configuration of the video cell 105 is substantially the same as that of the menu cell 90, and the video data 102 is MPEG standard (Mov
data such as moving images, movies, and sub-pictures compressed according to a compression standard such as the ing Picture Expert Group) is recorded in a data format compatible with the MPEG2 system layer. That is, the video data 102 is a program streamer defined by the MPEG standard. Furthermore, each pack 92, 93, 9
5 and 98 have a pack structure composed of a pack header 97 and a packet 99 corresponding to the pack.

The file management information area 101 is a file management table (FMT) 1.
13. Sequence information table (SIT: Sequence In
formation Table) 114, cell information table (CI
T: Cell Information Table) 115 and the like.

The video data cells in the video data area 102 are numbered consecutively from # 1 in the order of recording on the disc, and the cell information table 115 stores the cell number and cell-related information in association with this cell number. It is described in. That is, the cell information table 115 is defined as a set of areas 117 in which j pieces of cell information (CI) in which information necessary for reproducing video data cells is described in the order of cell numbers are stored. ) Describes information such as the position, size, and reproduction time of the cell in the file 78.

FIG. 9 shows the contents of cell information (CI) stored in the cell information table 115. In this cell information 117, the contents such as the start position and size of the video cell obtained by dividing the video data in units according to the purpose are described by parameters. That is, this cell information (CI) is
Cell type information (CCAT) indicating the contents of the video cell such as whether the video cell is a movie, karaoke or interactive menu, cell reproduction information (CTIME) indicating the total reproduction time of the video cell, the start position of the video cell,
That is, cell start position information (CSLB) indicating the start address.
N) and cell size information (CNLB) indicating the size of each video cell.

The sequence information table 114 includes i pieces of sequence information (S) that describe the order of selecting and reproducing the cells 105 within the range specified for each sequence 106.
The sequence information (SI) defines the reproduction order of the video cells 105 recorded in the sequence 106 and reproduction control information regarding reproduction. This sequence 1
In 06, a complete type sequence that is completed in one sequence,
There is a connection-type sequence that is branched and connected to the next sequence for each sequence. The connection-type sequence is the first sequence of video data corresponding to a multi-story, and is branched from this sequence and connected to the next sequence. Connection-type head sequence that can be changed, that is, a connection-type head sequence whose story changes according to its selection method, a connection-type intermediate sequence that is branched from another connection-type sequence and connected to another sequence, and others There is a connection-type end sequence that is connected from the connection-type sequence and ends the sequence, that is, a connection-type end sequence in which the story ends in this sequence. The sequence information numbers are defined as sequence numbers 1 to i, and the start position information of each is written in the file management information table 113.

FIG. 10 shows the contents of one piece of sequence information (SI) stored in the sequence information table 114 in the file management information area 101 shown in FIG. Sequence information area 1 as shown in FIG.
In 16, the reproduction order of video cells, sequence information, and the like are described. The sequence information (SI) number matches the sequence number, and the sequence information table 11
4 are assigned in the numerical order. Sequence number 1 is a default playback sequence, and it is said that it is desirable that cells in the sequence are arranged consecutively in a specified order. The sequence information 116 includes sequence type information (SCAT), sequence reproduction time (STIME), connection sequence number information (SNCS).
Q), sequence number list information (SCSQN), and sequence control information (SCINF).
The sequence type information (SCAT) is a complete sequence that is reproduced after one sequence and ends, and a start sequence of video data corresponding to multi-story, which can be branched from this sequence and connected to the next sequence. A connection-type leading sequence, a connection-type intermediate sequence that branches from another connection-type sequence and is connected to another sequence, and a connection-type end sequence that is connected from another connection-type sequence and ends that sequence Is described. The sequence playback time (STIME) describes the total playback time of the sequence, and the connected sequence number information (SNCSQ) contains
Describes the number of sequences that can be connected to the sequence after playing the sequence in the connection-type sequence,
In the sequence number list information (SCSQN), the numbers of the sequences of the connection destinations corresponding to the number described in the connection sequence number information (SNCSQ) are described as a list.
The sequence control information (SCINF) describes the reproduction order of the cells forming the sequence, and the cells are reproduced and the sequence is executed according to this description. A section in which one cell is selected and reproduced from a plurality of cells is described by a block as a set of cells, and the sequence of the block is executed by designating the block. In addition, the sequence defines a program as a reproduction unit in which one or more cells whose reproduction order is continuous are combined, and its number is described. The program numbers in the sequence are assigned in ascending order from # 1.

The file management table 113 shows the specification information regarding the video file 78. In this file management table 113, the file name and a file identifier for identifying whether or not the file can be played back by the optical disk playback device loaded with the optical disk are described. Further, in the file management table 113, the start addresses of the sequence information table 114 and the cell information table 115, the numbers of the sequence information 116 and the cell information 117 described in the respective tables, and the relative distance from the beginning of the file 78. As the start address of the sequence information table 114, the start address of each sequence information 116 indicated by the relative distance from the beginning of the sequence information table 114, the start address of the video data 102, and the information for reproducing each data. The data attributes and the like are described.

The file management table (FMT) 113 is made up of areas in which a plurality of parameters are recorded, and each area has a file name (FFNAM) as shown in FIG.
E), the file identifier (FFID) as information for identifying a movie file, and the size (FS) of the file management table (FMT) described by the number of logical blocks.
ZFMT), total number of sequences present in this file (FNSQ), number of cells present in this file (FN
CEL), the number of disc search information (DSI) packs (FNDSI) existing in the video data of this file
P), the number of logical blocks (FNLB) corresponding to the size of this file, the start address (FSASSIT) of the sequence information table 114 in this file indicated by the offset logical block number from the beginning of the file, the offset logical block from the beginning of the file Start address (FSACIT) of the cell information table 115 in this file indicated by a number, offset logical block from the beginning of the file Disk search map start address (FSADSM) in this file indicated by a number, offset logical block from the beginning of the file Video data start address (FSADVD) in this file indicated by number,
The start address (sequence information table 11) of each sequence information in the sequence information table 114 of this file in which the sequence is described in the order of description of the sequence information.
4 offset byte number from the beginning), size (FSAESI), and sequence information are described in the order of sequence information. The minimum number of cells used in each sequence existing in this file and between the minimum number and the maximum number are used. The number of cells (FSNCIB), the video data attribute (FVATR) 123 indicating the reproduction mode of the video data recorded in this file, and the audio recorded in this file that can be reproduced in the same time zone as this video data. The number of audio (voice) streams (FNAST) 124 indicating the number of data streams (data strings), and the individual audio stream attributes (FAAT) in which the stream numbers corresponding to the number of these streams are associated with the recording order.
R) 125, the number of sub-picture channels (FNSPCH) 12 indicating the number of channels of sub-picture data recorded in this file that can be reproduced in the same time zone as the above video data.
6. Individual sub-picture channel attributes (FSPATR) in which the channel numbers and the recording order are associated by the number of these channels
127, sub-picture color palette (FSPPL) used in all channels of file picture data
T), parameters such as a vendor definition (FVDEF) that defines an area that the vendor can use freely for a specific purpose are recorded.

In FIG. 11, when the number of audio streams 124 is n, the following audio stream attributes 125 are continuously recorded in the order of stream numbers from # 1 to #n.

Similarly to the above, the number of sub-picture channels is 12
When 6 is m, the following sub-picture channel attribute 127
Are continuously recorded in the order of channel numbers from # 1 to #m.

Here, the number of audio streams is 124,
Alternatively, when the number 126 of sub-picture channels is zero (0), the audio stream attribute 125 or the sub-picture channel attribute 127 is not recorded.

Each item of the video data attribute 123 is
It determines the reproduction mode of the video data recorded in the corresponding file.

This video data attribute (FVATR) 12
As shown in FIG. 12, reference numeral 3 denotes a display aspect ratio 132 when displaying on a TV screen or the like such as a video compression mode 131 indicating a video data encoding method such as MPEG1 or MPEG2, or 3/4 or 9/16. , NTSC (national te
levision system committee), PAL (phase alternati
on by line) etc. video signal frame rate 133,
Pan scan 134 for permitting / prohibiting partial omission (cutout) of the display area of video data, recording mode 135 for recording video data indicating a frame / field, etc.
Etc.

In the video compression mode 131,
A case where no compression is indicated may be added. In this case, a through route may be provided in the video decoder section 58.

The above audio stream attribute (FAAT
Each item of (R) 125 determines the reproduction mode of the audio data recorded in this file.

This audio stream attribute 125 is
As shown in FIG. 13, an audio compression mode 15 indicating an encoding method (compression method) of an audio stream such as MPEG1, Dolby AC3, and linear PCM audio.
1, an audio mode 152 indicating an audio reproduction mode such as stereo, monaural, and digital surround, an audio type 153 indicating whether the content of the audio stream includes a language or a language, whether the audio stream can be mixed, that is, other 154, which indicates whether or not it can be synthesized with the stream of the master stream and whether or not it can be independently played back. If the audio stream is a slave stream that cannot be played back unless it is synthesized with the master stream that is the background sound, the master stream that is synthesized together Master stream number 15 that specifies the number of
5. The audio type 153 is the language (voice)
In the case of, a language code 156 or the like indicating the language of the audio stream is included.

Sub-picture channel attribute (FSPATR)
Each item of 127 determines the reproduction mode regarding the sub-picture data recorded in the corresponding file.

This sub-picture channel attribute 127 is shown in FIG.
As shown in, Raw (raw), Run-length
In the sub-picture compression mode 171, which indicates the encoding method of the sub-picture data such as h (run length), the sub-picture type 172 in which the content of the sub-picture data indicates a picture / language (caption), and the sub-picture type 172 described above. When the type is language (caption), it is composed of a language code 173 or the like indicating the language of the sub-picture channel.

Next, the video data attribute 123, the audio stream attribute 125, and the sub-picture channel attribute 12 are set.
A configuration example of the video decoder unit 58, the audio decoder unit 60, the sub-picture decoder unit 62, and the D / A & reproduction processing unit 64 corresponding to 7 will be described.

As shown in FIG. 15, the video decoder section 58 is composed of a register 58a, a selector 58b, an MPEG1 decoder 58c, and an MPEG2 decoder 58d.

The register 58a is used for the system CP.
It holds a control signal (according to the encoding method) supplied from the U unit 50 via the system processor unit 54, and its output is output to the selector 58b. The selector 58b receives the video data supplied from the system processor unit 54 from the MPEG1 decoder 58c or MPEG2 according to the output from the register 58a.
The data is selectively output to the decoder 58d. MPE
The G1 decoder 58c is for decoding the video data from the selector 58b by the MPEG1 encoding method. The MPEG2 decoder 58d decodes the video data from the selector 58b by the MPEG2 encoding method. The decoder output from the MPEG1 decoder 58c or the MPEG2 decoder 58d is output as a decoder output of the video decoder unit 58 to a video reproduction processing unit 201, which will be described later, in the D / A & reproduction processing unit 64.

Further, a control signal supplied from the system CPU section 50 via the system processor section 54 for supplying or not performing the pan scan is supplied to the MPEG2 decoder 58d. As a result, the MPEG2 decoder 58
When the pan scan processing is instructed by the control signal, the d outputs the pan scan processing. The pan-scan process is a process of removing images in both regions of video data having a display aspect ratio of 9/16 and cutting out only video data of a portion corresponding to 3/4.

As shown in FIG. 16, the audio decoder section 60 includes a register 60a, a selector 60b and an MPEG.
1 decoder 60c, AC3 decoder 60d, and PC
It is composed of an M decoder 60e.

The register 60a is used for the system CP.
It holds a control signal supplied from the U unit 50 via the system processor unit 54, and its output is output to the selector 60b. The selector 60b receives the audio data supplied from the system processor unit 54 from the MPEG1 decoder 60c, AC3 decoder 60d, or PCM according to the output from the register 60a.
The data is selectively output to the decoder 60e. MPE
The G1 decoder 60c is for decoding the audio data from the selector 60b by the MPEG1 encoding method. The AC3 decoder 60d decodes the audio data from the selector 60b by the AC3 encoding method. The PCM decoder 60e is a selector 60.
The digital audio data from b is decoded into analog audio data.

The decoder output from the MPEG1 decoder 60c, the AC3 decoder 60d, or the PCM decoder 60e is output as a decoder output of the audio decoder unit 60 to an audio reproduction processing unit 202 in the D / A & reproduction processing unit 64, which will be described later. .

As shown in FIG. 17, the sub-picture decoder section 62 is composed of a register 62a, a selector 62b, a bit map decoder 62c, and a run length decoder 62d.

The register 62a is used for the system CP.
It holds a control signal supplied from the U unit 50 via the system processor unit 54, and its output is output to the selector 62b. The selector 62b selectively outputs the sub-picture data supplied from the system processor unit 54 to the bit map decoder 62c or the run length decoder 62d according to the output from the register 62a.

The bit map decoder 62c decodes the sub-picture data from the selector 62b by a bit map coding method. Run length decoder 62
Reference numeral d is for decoding the sub-picture data from the selector 62b by a run-length coding method.

As shown in FIG. 1, the D / A & reproduction processing section 64 has a video reproduction processing section 201, an audio reproduction processing section 202, an audio mixing section 203, and a sub-picture reproduction processing section 207.

The video reproduction processing unit 201, as shown in FIG. 18, has a letterbox converter 2 having a memory therein.
04, a digital NTSC / PAL converter 205 having a video formatter (color difference signal conversion) function, and D
The A / A converter 206 is used.

The letterbox converter 204 performs letterbox conversion processing on the video data supplied from the video decoder section 58 in response to a control signal supplied from the system CPU section 50 via the system processor section 54. Alternatively, the letterbox conversion process is not performed and the through process is performed as it is. In the letterbox conversion process, video data having an aspect ratio of 9/16 is compressed in the vertical direction so that all data can be displayed on the monitor unit 6 having an aspect ratio of 3/4. . When displayed on the monitor unit 6, a black portion at the upper limit of the image is formed, so that it is called a letter box.

Digital / NTSC / PAL converter 205
Is for converting the video data from the letterbox converter 204 into the NTSC format or the PAL format according to the control signal supplied from the system CPU section 50 through the system processor section 54. is there. The output from the digital / NTSC / PAL converter 205 is converted into analog data by the D / A converter 206 and then output to the monitor unit 6.

As shown in FIG. 19, the audio reproduction processing section 202 is composed of a register 202a, a selector 202b, a stereo output section 202c, a monaural output section 202d, and a surround output section 202e.

The register 202a is used for the system C.
It holds a control signal supplied from the PU unit 50 via the system processor unit 54, and its output is output to the selector 202b. The selector 202b selectively outputs the audio data supplied from the audio decoder unit 60 to the stereo output unit 202c, the monaural output unit 202d, or the surround output unit 202e according to the output from the register 202a. . The stereo output unit 202c converts the audio data from the selector 202b into stereo data. The monaural output unit 202d has a selector 202b.
The audio data from is converted into monaural data. The surround output unit 202e includes the selector 20.
The audio data from 2b is converted into surround data. The output from the stereo output unit 202c, the monaural output unit 202d, or the surround output unit 202e, that is, the output of the audio reproduction processing unit 202 is
It is output to the audio mixing unit 203.

The audio mixing unit 203 is shown in FIG.
Register 203a, register 203b,
Selector 203c, first stream processing unit 203d, second stream processing unit 203e, mixing processing unit 203
It is composed of f.

The registers 203a and 203b hold control signals supplied from the system CPU section 50 through the system processor section 54. The output of the register 203a is output to the selector 203c and the register 203b. Output of the mixing processing unit 2
It is output to 03f. The selector 203c selectively outputs the audio data supplied from the audio reproduction processing unit 202 to the first stream processing unit 203d or the second stream processing unit 203e according to the output from the register 203a. . The first stream processing unit 203d converts the audio data from the selector 203c into the first stream data. The second stream processing unit 203e includes the selector 203.
The audio data from c is converted into the data of the second stream. The output from the first stream processing unit 203d or the second stream processing unit 203e is output to the mixing processing unit 203f. The mixing processing unit 203f performs mixing processing according to the output from the register 203a, and outputs the data after the mixing processing to the speaker 8 or the like as the output of the audio mixing unit 203.

Further, the D / A & reproduction processing section 64 synthesizes the video output from the video reproduction processing section 201 and the sub-picture output from the sub-picture reproduction processing section 207 and outputs them to the monitor section 6 for display. The selection screen signal generated by the character pattern for the selection screen from the character generator 66 is output to the monitor unit 6 for display.

Next, referring again to FIG. 1, FIG. 4 to FIG.
The reproduction operation of movie data from the optical disc 10 having the logical format shown in FIG. In FIG. 1, solid arrows between blocks indicate data buses,
The dashed arrow indicates the control bus.

In the optical disk device shown in FIG. 1, when the power is turned on, the system ROM and RAM
The system CPU unit 50 reads the initial operation program from 52 and operates the disk drive unit 30. Therefore, the disk drive unit 30 has the lead-in area 27.
The read operation is started from the volume management information area 7 of the volume management area 70 following the lead-in area 27.
The volume management information is read from 4. That is, the system CPU section 50 gives a read command to the disk drive section 30 in order to read the volume management information from the volume management information area 74 recorded at a predetermined position of the disk 10 set in the disk drive section 30, The contents of the volume management information are read out and temporarily stored in the data RAM unit 56 via the system processor unit 54. The system CPU section 50 has a data RAM section 56.
The information such as the recording position and recording capacity of each file and other information necessary for management are extracted from the data string of the volume management information stored in, and transferred to a predetermined location of the system ROM & RAM section 52 and stored.

Next, the system CPU section 50 refers to the information on the recording position and recording capacity of each file previously acquired from the system ROM & RAM section 52, and the file number 0
The disk information file 76 corresponding to the number is acquired. That is, the system CPU unit 50 includes a system ROM and R
The AM unit 52 gives a read command to the disk drive unit 30 by referring to the information on the recording position and the recording capacity of each file acquired earlier, and outputs the file management information of the disk information file 76 having the file number 0. The data RAM section 56 is read through the system processor section 54.
To be stored. Similarly, the acquired information is used for system ROM &
It is transferred to a predetermined location in the RAM section 52 and saved.

The system CPU section 50 reproduces the sequence (title) selection menu of the menu video data area 84 by using the disc configuration information, the menu configuration information and the cell information of the file management information of the disc information file 76, Display it on the screen as described below.

The user designates the selection of the sequence (title) to be reproduced by using the key operation and the display section 4 on the basis of the selection number written on the displayed menu screen.
As a result, the file number to which the selected sequence belongs and the sequence information are specified. In this sequence selection, there are cases where all sequences are selected based on the menu screen, and cases where the first sequence is selected and the next sequence is selected from the menu cells included in the video cells at the end of the sequence.

Obtain the specified video file 78,
The operation of reproducing the video data 102 will be described below. In order to obtain the sequence information for the designated sequence number, using the recording position and the recording capacity of each video file 78 obtained from the volume management information 74,
First, the video file 7 to which the sequence to be played belongs
The file management information 101 of No. 8 is read out and stored in the data RAM unit 56 as in the case of the disk information file 76.

The system CPU section 50 acquires the video attribute 123, the audio stream attribute 125, and the sub-picture channel attribute 127 from the file management table 113 of the file management information stored in the data RAM section 56, and controls according to those attributes. The signal to the video decoder section 58,
Audio decoder unit 60, sub-picture decoder unit 62, video reproduction processing unit 201, audio reproduction processing unit 202,
Audio mixing unit 203, sub-picture reproduction processing unit 20
Output to 7.

The system CPU section 50 acquires the sequence information corresponding to the designated sequence number from the sequence information table 114 of the file management information area 101 stored in the data RAM section 56, and the data,
The cell information in the cell information table 115 necessary for reproducing the sequence is stored in the system ROM & RAM section 52.
Transfer to and store.

The cell information to be reproduced first is acquired from the cell reproduction order information in the sequence information thus acquired, and the disk drive unit 30 is based on the video data reproduction start address and size in the cell information. Is given a read instruction from the target address. The disc drive unit 30 drives the optical disc 10 in accordance with the read command, reads the data of the target address from the optical disc 10, and sends it to the system processor unit 54. The system processor unit 54 temporarily stores the transmitted data in the data RAM unit 56, and determines the type of the data (video, audio, sub-picture, reproduction information, etc.) based on the header information added to the data. Then, the data is transferred to the decoder units 58, 60, 62 according to the determined type.

Each of the decoder units 58, 60 and 62 decodes the data in accordance with the respective data format and the encoding method set above, and the D / A & reproduction processing unit 64.
Video reproduction processing unit 201 and audio reproduction processing unit 2 in the
02, and sends it to the sub-picture reproduction processing unit 207. After the video reproduction processing unit 201 converts the digital signal of the decoding result of the video data into an analog signal, the frame rate process, the aspect process, the pan scan process, etc. are performed according to the conditions set above, and the result is output to the monitor unit 6. It After the audio reproduction processing unit 202 converts the decoding result of the audio data from a digital signal into an analog signal according to the conditions set above, the audio mixing unit 2
In 03, mixing processing is performed according to the conditions set above and the result is output to the speaker unit 8. Sub video reproduction processing unit 2
07 converts the digital signal resulting from the decoding of the sub-picture data into an analog signal, and then outputs the analog signal to the monitor unit 6.

In the process of determining the type of data, if the data is reproduction information indicating the reproduction position of the video data, this reproduction information is not transferred to the decoder, and this reproduction data is stored in the data RAM section. 56. The reproduction information is referred to by the system CPU unit 50 as necessary and used for monitoring when reproducing the video data.

When the reproduction of one cell is completed, the cell information to be reproduced next is obtained from the cell reproduction order information in the sequence information, and the reproduction is continued in the same manner.

Next, the process of acquiring / setting the video data attribute in this optical disc reproducing apparatus will be described with reference to the flowchart shown in FIG.

That is, the system CPU section 50 controls the disk drive section 30 to read the user-specified file having the file structure shown in FIG. 6 from the optical disk 10 and temporarily store it in the data RAM section 56.

The video data attribute 123 recorded in the file management information of the file management information area 101 of the designated file stored in the data RAM section 56 is set in the system CPU.
The unit 50 acquires (S1).

The system CPU section 50 uses the video compression mode 13 described in the acquired video data attribute 123.
It is determined whether 1 corresponds to MPEG1 or MPEG2, and a control signal corresponding to the determination result is output to the register 58a of the video decoder unit 58 (S2).

As a result, the selector 58b is switched according to the control signal supplied to the register 58a, and when the video compression mode 131 conforms to MPEG1, the selector 58b is switched to the MPEG1 decoder 58c side (S3). When the video compression mode 131 complies with MPEG2, the selector 58b is switched to the MPEG2 decoder 58d side (S4).

Further, the system CPU section 50 determines whether the frame rate 133 described in the acquired video data attribute 123 is NTSC or PAL (S5), and the control signal according to the determination result. Is output to the digital / NTSC / PAL converter 205 in the video reproduction processing unit 201 of the D / A & reproduction processing unit 64. Accordingly, the digital / NTSC / PAL converter 205 sets the digital video conversion to NTSC (S6) or the digital video conversion to PAL (S7) according to the supplied control signal.

Further, the system CPU section 50 determines whether the display aspect ratio 132 described in the acquired video data attribute 123 is 3/4 or 9/16 (S8).

When the result of this determination is 3/4, the system CPU section 50 sends a control signal indicating the inhibition of the letterbox conversion processing to D / via the system processor section 54.
Output to the letterbox converter 204 in the video reproduction processing unit 201 in the A & reproduction processing unit 64. As a result, the letterbox conversion processing by the letterbox converter 204 is prohibited (S9).

The system CPU section 50 also outputs a control signal indicating inhibition of the pan scan processing to the MPEG2 decoder 58d in the video decoder section 58 via the system processor section 54. As a result, the pan scan processing by the MPEG2 decoder 58d is prohibited (S1).
0).

Further, the determination result in step 8 is 9 /
If it is 16, the system CPU unit 50 determines whether the display aspect ratio specified by the user is 9/16.
Is determined (S11).

If the result of this determination is 9/16, the process proceeds to step 9, and if it is 3/4, the system C
The PU unit 50 determines whether the display conversion specified by the user on the key operation unit and the display unit 4 is the pan scan method (S12).

If the result of this determination is not the pan scan type display conversion, the system CPU section 50 sends a control signal indicating the letterbox conversion processing to the video reproduction in the D / A & reproduction processing section 64 via the system processor section 54. It is output to the letterbox converter 204 in the processing unit 201. As a result, the letterbox conversion processing by the letterbox converter 204 is set (S13).

The system CPU section 50 also outputs a control signal indicating prohibition of the pan scan processing to the MPEG2 decoder 58d in the video decoder section 58 via the system processor section 54. As a result, the pan scan processing by the MPEG2 decoder 58d is prohibited (S1).
4).

If the result of the determination in step 12 is pan-scan display conversion, the system CP
The U unit 50 determines whether the pan scan 134 described in the acquired video data attribute 123 is permitted or prohibited (S15).

If the determination result is permission, the system CPU section 50 sends a control signal indicating prohibition of the letterbox conversion processing to the D / A via the system processor section 54.
& Outputs to the letterbox converter 204 in the video reproduction processing unit 201 in the reproduction processing unit 64. This allows
The letterbox conversion processing by the letterbox converter 204 is prohibited (S16).

The system CPU section 50 also outputs a control signal indicating permission of the pan scan processing to the MPEG2 decoder 58d in the video decoder section 58 via the system processor section 54. This sets the pan scan process by the MPEG2 decoder 58d (S1).
7).

If the determination result in step 15 is prohibited, the system CPU section 50 causes the key operation section and the display section 4 to display that pan scanning is prohibited or an indicator is displayed. Then, the user is notified (S18). In addition, the system CPU unit 50
After performing this display or notification,
Go to.

Next, an audio stream attribute acquisition / setting process in this optical disc reproducing apparatus will be described with reference to the flowchart shown in FIG.

First, the system CPU section 50 controls the disk drive section 30 to create a file designated by the user having a file structure as shown in FIG.
Read out from the memory and temporarily store it in the data RAM section 56 (S
20).

At this time, the system CPU section 50 judges whether the use of the sequence defined in the file or the type of cell is movie, karaoke, or interactive.

The number of audio streams recorded in the file management information of the file management information area 101 of the designated file, which is stored in the data RAM section 56 (n)
And the audio stream attribute of each audio stream are acquired by the system CPU unit 50, a stream number is added to each audio stream attribute, and the data RA
The audio stream attribute table 56a is provided in the M section 56.
Is generated (S21).

For example, as shown in FIG. 23, for the stream number "1", audio compression mode "Dolby AC3", audio mode "stereo", audio type "including language", mixing "impossible", master stream The number is "0" and the language code is "Japanese". For the stream number "2", audio compression mode "Dolby AC3", audio mode "stereo", audio type "not specified", mixing "possible" , Master stream number “0”, language code “none”, and audio compression mode “Dolby AC3”, audio mode “stereo”, audio type “include language”, for stream number “3”, The mixing is “OK”, the master stream number is “2”, and the language code is “English”. For stream number "4", audio compression mode "Dolby AC3", audio mode "stereo", audio type "include language", mixing "OK", master stream number "2", language code "French" For the stream number "5", audio compression mode "Dolby AC3", audio mode "stereo", audio type "include language", mixing "OK", master stream number "6", language code "Germany""," For audio stream mode "6", audio compression mode "Dolby AC3", audio mode "stereo", audio type "not specified", mixing "OK", master stream number "0", The language code is "None", and the stream number "7" is Audio compression mode "Dolby AC3", audio mode "stereo", audio type ", including the language," mixing "possible", the master stream number "6", has become a language code "Spanish".

Then, the system CPU section 50 selects either an independent stream, a master stream or a slave stream according to the audio type 153, the mixing 154 and the master stream number 155 for each audio stream attribute in the audio stream attribute table 56a. It is determined that only the audio stream attributes corresponding to the independent stream and the slave stream are used in the selection screen, the character code corresponding to the audio stream attribute used in the selection screen is read from the data RAM unit 56, and the character generator 66 is sequentially operated. (S22).

For example, in the case of FIG. 23, the system CPU
The section 50 sets the audio type to “include language”, the mixing to “impossible (cannot be combined with other stream)”, and the master stream number to “0” for the stream number “1”. Therefore, it is judged as an independent stream,
For the stream numbers “2” and “6”, the audio type is “not specified”, the mixing is “enabled (combining with other streams is possible)”, and the master stream number is “0” , The master stream is determined, and the audio type is “include language”, the mixing is “OK”, and the master stream number is “2” for the stream numbers “3” and “4”, the slave stream is It is determined that the master stream with the stream number “2” is combined, and the audio type is “include language”, the mixing is “OK”, and the master stream number is “with” for the stream numbers “5” and “7”. Since it is "6", it is determined that the master stream with the stream number "6" is combined with the slave stream.

Further, since the system CPU section 50 rarely reproduces only the master stream when the use of the sequence defined in the file or the type of cell is movie or interactive.
The playback of the master stream by itself is prohibited, and the stream numbers "1" and "3" in the audio stream attribute table 56a for the independent stream and the slave stream only.
Character code of audio stream attribute for “4” “5” “7”, that is, “1 song A Japanese lyrics” “2 song B English lyrics” “3 song B French lyrics” “4 song C German lyrics” “5 songs The character code of “C Spanish lyrics” is supplied to the character generator 66. At this time, new stream numbers assigned in ascending order of stream number are displayed. Then, the corresponding character pattern is supplied from the character generator 66 to the D / A and reproduction processing circuit 64. D / A and reproduction processing circuit 64
Generates a video signal corresponding to the selected screen based on the supplied character pattern and supplies the video signal to the monitor unit 6. As a result, the monitor unit 6 displays the voice selection menu as shown in FIG. 24 (S23).

At this time, if the reproduction of the master stream alone is prohibited, the recorded stream number of the master stream and its contents are not displayed in the audio selection menu, so that the user is not aware of the existence of the master stream. Can be selected.

The user specifies the audio stream number to be selected by the audio selection menu displayed on the monitor section 6 (S24).

In this case, when "2 song B English lyrics" is selected, the voice in which the back chorus of stream number "2" shown in FIG. 23 is synthesized with the English lyrics is reproduced, and "3 song B English lyrics" is reproduced. When "French lyrics" is selected, the voice in which the back chorus of stream number "2" shown in FIG. 23 is synthesized with the French lyrics is played, and when "4 songs C German lyrics" is selected, Stream number "6" shown in Figure 23 in German lyrics
When the voice that synthesizes the back chorus is played, and "5 songs C Spanish lyrics" is selected,
The sound in which the back chorus with the stream number "6" shown in FIG. 23 is synthesized with the Spanish lyrics is reproduced.

When the use of the sequence defined in the file and the type of cell are karaoke, the system CPU section 50 outputs audio streams for all stream numbers "1" to "7" in the audio stream attribute table 56a. Character code of attribute, that is, "1 song A
Japanese lyrics "" 2 songs B back chorus 1 "" 3 songs B
"English lyrics""4 songs B French lyrics""5 songs C
German lyrics "" 6 songs C back chorus 2 "" 7
The character code of “Song C Spanish lyrics” is supplied to the character generator 66. Then, the corresponding character pattern is supplied from the character generator 66 to the D / A and reproduction processing circuit 64. D / A and reproduction processing circuit 6
4 generates a video signal corresponding to the selected screen by the supplied character pattern and supplies it to the monitor unit 6. As a result, the monitor unit 6 displays a voice selection menu as shown in FIG.

Then, the system CPU section 50 uses the audio stream attribute table 5 in the data RAM section 56.
The audio stream attribute corresponding to the stream number designated by the user is acquired from 6a (S25).

The system CPU section 50 determines whether the audio compression mode 151 described in the obtained audio stream attribute 125 complies with MPEG1, Dolby AC3, or linear PCM, and according to this determination result. Audio control section 6
It is output to the register 60a of 0 (S26).

As a result, the selector 60b is switched according to the control signal supplied to the register 60a, and when the audio compression mode 151 is in conformity with MPEG1, the audio data from the system processor section 54 is passed through the selector 60b. The audio compression mode 151 is supplied to the MPEG1 decoder 60c and the audio compression mode 151 is Dolby AC.
If the video compression mode 131 conforms to the linear PCM, the audio data from the system processor unit 54 is supplied to the AC3 decoder 60d via the selector 60b. The data is supplied to the PCM decoder 60e via the selector 60b.

Further, the system CPU section 50 determines whether the audio mode 152 described in the acquired audio stream attribute 125 is stereo, monaural or surround, and outputs a control signal according to the determination result. Register 20 in audio reproduction processing unit 202
It is output to 2a (S27).

As a result, the selector 202b is switched according to the control signal supplied to the register 202a, and when the audio mode 152 is stereo, the audio data from the audio decoder section 60 is the selector 202.
b is supplied to the stereo output unit 202c and the audio mode 152 is monaural, the audio data from the audio decoder unit 60 is supplied to the monaural output unit 202d via the selector 202b, and when the audio mode 152 is surround, The audio data from the audio decoder unit 60 is supplied to the surround output unit 202e via the selector 202b.

Next, the system CPU section 50 determines whether the mixing 154 described in the acquired audio stream attribute 125 is impossible to mix, is a mixable master stream, or is a mixable slave stream. Is determined and the control signal corresponding to the determination result is output to the registers 203a and 203b of the audio mixing unit 203 (S28).

As a result, the selector 203c is switched according to the control signal supplied to the register 203a, and in the case of a master stream that can be mixed, the first stream processing unit 203 sets the stream as the first stream.
In the case of a slave stream that can be mixed and is supplied to d, the stream is supplied to the second stream processing unit 203e as the second stream, and in the case of an independent stream that cannot be mixed, the stream is processed as the first stream to be the first stream processing. It is supplied to the section 203d (S28 to S32).

When the processing of the mixing processing unit 203f is switched according to the control signal supplied to the register 203b and mixing is possible, the first stream processing unit 2
03d first stream and second stream processing unit 203
When the mixing process is performed on the second stream of e and is output to the speaker unit 8 and mixing is not possible, the first
Only the first stream of the stream processing unit 203d is output to the speaker unit 8.

Further, the system CPU section 50 judges whether or not the audio type 153 described in the acquired audio stream attribute 125 is a language (S3).
3), if this determination result is language, language code 15
Obtain the language code from 6, and use the system ROM & RA
The corresponding language name is determined from the language code table stored in the M section 52 in advance, and the monitor section 6 or the like makes an indication (S34).

On the contrary, when the language code is designated by the user, the audio stream having the desired language code can be specified from the audio stream number 124 and the audio stream attribute 125.

Further, when there is an instruction to switch the audio stream number due to a user event or the like during data reproduction (S24), the acquisition and setting of the audio stream attribute is performed by the above-described processing of S25 to S34.

The language code corresponding to the audio stream attribute selected by the user is stored in the language code storage section 56b in the data RAM section 56 by the system CPU section 50.

As a result, when the file is changed or the file is selected when the optical disk 10 is exchanged, the system CPU section 50 reads a new audio corresponding to the file and stores it in the data RAM section 56. Language code for each audio stream attribute of the stream attribute table 56a and the language code storage unit 56b
Is compared with the language code stored in, the stream number corresponding to the matching language code is determined from the new audio stream attribute table 56a, and the audio stream attribute of the determined stream number,
The above-described setting processing is performed (automatically without performing the audio stream attribute selection processing).

As a result, when a file is changed or a file is selected when the optical disk 10 is exchanged, audio data reproduction processing can be performed in the same language as that set before.

For example, it is assumed that the user is currently watching a movie by selecting a stream in which the audio stream attribute is the example of FIG. 26 and the language of the stream number "2" is Japanese. After that, when the user finishes watching the movie currently being watched and exchanges the optical disc 10 to watch the next movie, the audio stream attributes described in the newly set optical disc 10 are as shown in FIG. In this case, it is determined that the stream number “4” in which the same Japanese language code is described is set, and the audio stream attribute of this stream number “4” is automatically set and playback in Japanese can be performed. To do so.

As a result, when the file is changed or when the file is selected when the optical disk 10 is exchanged, the audio stream attribute is not set by the stream number selected by the user, but is set before that. Audio data reproduction processing can be performed in the same language as the language.

When the audio stream attribute table 56a is generated, the stream number "1" or the stream numbers "1" and "2" are set as the master stream, and the subsequent stream is set as the independent stream and the slave stream. It is possible to reduce the burden on the firmware when the application or cell type is movie or interactive. 26 and 28 show examples of this generation. At this time, the master stream is 2
It is stipulated up to three.

In this case, when the independent stream and the slave stream are selected for display, as shown in the flowchart of FIG. 29, it is judged in order from the stream number "1" whether the stream is the master stream, and the stream number "1" is the master stream. If it is not a stream, stream number "1"
Everything after that is the display target, stream number "1"
Is the master stream and the stream number "2" is not the master stream, the stream number "2"
When the stream numbers “1” and “2” are master streams, all the stream numbers “1” and “2” are display targets.

Next, the sub-picture channel attribute acquisition / setting processing in this optical disk reproducing apparatus will be described with reference to the flowchart shown in FIG.

First, the system CPU section 50 controls the disk drive section 30 so that the user-specified file having the file structure shown in FIG.
Read out from the memory and temporarily store it in the data RAM section 56 (S
40).

The system CPU unit 50 acquires the number 126 (m) of sub-picture channels recorded in the file management information of the designated file stored in the data RAM unit 56 (S41).

The user specifies the sub-picture channel number to be selected (S46).

The system CPU section 50 acquires the sub-picture channel attribute 127 corresponding to the channel number designated by the user from the m sub-picture channel attribute group 127 recorded in the designated file management information stored in the data RAM section 56. (S42).

The system CPU section 50 uses the sub-picture compression mode 1 described in the acquired sub-picture channel attribute 127.
It is determined whether 71 is Raw (corresponding to a bit map) or run length, and a control signal according to the determination result is output to the register 62a of the sub-picture decoder unit 62 (S43).

As a result, the selector 62b is switched according to the control signal supplied to the register 62a, and when the sub-picture compression mode 171 corresponds to the bitmap,
The sub-picture data from the system processor unit 54 is supplied to the bitmap decoder 62c via the selector 62b. When the sub-picture compression mode 171 corresponds to the run length, the sub-picture data from the system processor unit 54 is selected by the selector 62b. Through the run length decoder 62
supplied to d.

Also, the system CPU section 50 causes the sub-picture type 1 described in the acquired sub-picture channel attribute 127.
It is determined whether or not 72 is a language (S44). If the result of this determination is a language, the language code is acquired from the language code 173 and stored in the system ROM & RAM section 52 in advance. Then, the corresponding language name is determined and is indicated by the monitor unit 6 or the like (S45).

On the contrary, when the language code is designated by the user, the sub-picture channel having the desired language code can be specified from the sub-picture channel number 126 and the sub-picture channel attribute 127.

Further, when there is an instruction to switch the sub-picture channel number due to a user event or the like during data reproduction (S46), the sub-picture channel attribute is acquired and set by the above-described processing of S42 to S45.

The above description has been made mainly on video data, but as other application examples, a case where only a single piece of audio data is recorded, a case where a plurality of such data are recorded, and a compression mode is different. In this case, it is also possible to configure without using video data, such as in the case of being composed of audio data and sub-picture data, or in the case of only sub-picture data.

It is also possible to record a plurality of video data of different compression modes and the like, and the present invention does not necessarily limit the combination of the data.

Next, referring to FIGS. 31 to 36, the video data in the logical formats shown in FIGS. 4 to 14 and the recording method on the optical disc 10 for reproducing this video data and the recording method thereof are applied. The recording system will be described.

FIG. 31 shows an encoder system that encodes video data to generate a video file. In the system shown in FIG. 31, as sources of main video data, audio data, and sub-video data, for example, a video tape recorder (VTR) 211,
An audio tape recorder (ATR) 212 and a sub picture source (Subpicture source) 213 are adopted. These generate main video data, audio data, and sub-video data under the control of the system controller (Sys con) 215, and these generate video encoder (VEN).
C) 216, audio encoder (AENC) 217
And a sub-picture encoder (SPENC) 218. Similarly, under the control of the system controller (Sys con) 215, the encoders 216, 217, and 218 A
Main video data, audio data, and sub video data (Comp Video, Comp Audio, Comp Sub
-pict) in the memories 220, 221, 222. This main video data, audio data and sub video data (Comp Video, Comp Audio, Comp Sub-pict)
Is output to the file formatter (FFMT) 224 by the system controller (Sys con) 215, converted into the file structure of the video data of this system as described above, and information such as setting conditions and attributes of each data is stored in the file. As a system controller (Sys con
) 215 and stored in the memory 226.

A standard flowchart of the encoding process in the system controller (Sys con) 215 for creating a file from video data will be described below.

According to the flow chart shown in FIG. 32, main video data and audio data are encoded and encoded main video and audio data (Comp Video,
CompAudio) data is created. That is, when the encoding process is started, the parameters necessary for encoding the main video data and the audio data are set as shown in step 70 of FIG. Some of the set parameters are set in the system controller (Sys con
) 215 and file formatter
Used in (FFMT) 224. As shown in step S71, the main video data is pre-encoded using the parameters, and the optimal distribution of the code amount is calculated. Step S7
As shown in 2, the main video is encoded based on the code amount distribution obtained by the pre-encoding. At this time, audio data encoding is also executed at the same time. If necessary as shown in step S73, a partial re-encoding of the main video data is executed, and the main video data in the re-encoded part is replaced. Main video data and audio data are encoded by this series of steps. Also, steps S74 and S75
As shown in, sub-picture data is encoded and encoded sub-picture data (Comp Sub-pict) is created. That is, the parameters necessary for encoding the sub-picture data are similarly set. Some of the parameters set as shown in step S74 are set in the system controller (Sy
s con), which is stored in the file formatter (FFM
T) 224. The sub-picture data is encoded based on this parameter. By this processing, the sub-picture data is encoded.

According to the flow chart shown in FIG. 33, the main video data, audio data and sub video data (Comp Video, Comp Audio, Comp Sub-pict) encoded are encoded.
) Are combined and converted into a file structure of video data as described with reference to FIG. That is, as shown in step S76, the cell 105 as the minimum unit of video data is set, and the cell information table (CIT) 115 is set.
Is created. Next, as shown in step S77, the configuration of the cell 105 that constitutes the sequence 106, the main video, the sub video, the audio attribute, etc. are set (some of these attribute information are information obtained at the time of data encoding). File management information (FMI) including the cell information table (CIT) 115 is created. Encoded main video data, audio data, and sub video data (Comp Video, Comp Audio, Comp Sub-pict) are subdivided into fixed packs, and can be played back in the order of time code of each data. Control pack (DS
I) each data cell is arranged while inserting 92
And, the disk information file 76 and the file 78 such as a movie file are formatted as shown in FIG.

Note that in the flowchart shown in FIG. 33, the sequence information can be obtained by using the database of the system controller (Sys con) 215 in the process of step S77, or re-entering data as necessary. Execute and sequence information table (SIT) 114
Described in.

FIG. 34 shows a disk formatter system for recording the files 76 and 78 formatted as described above on an optical disk. As shown in FIG. 34, in the disk formatter system, these file data are stored in the memory 230, 232 in which the created information file 76 and the file 78 such as the movie file are stored, and the volume formatter (VFMT) 23.
6. Volume formatter (VFMT)
In 236, in addition to the files 76 and 78, the volume information 74 of the disc is added in the arrangement order shown in FIG. 4 to create logical data in a state to be recorded on the disc 10. Volume formatter (VFMT) 236
Data for error correction is added to the logical data created in (1) by the disk formatter (DFMT) 238 and reconverted into physical data to be recorded on the disk. In a modulator (Modulator) 240, the physical data created by a disk formatter (DFMT) 238 is converted into recording data to be actually recorded on the disk, and the recording data subjected to the modulation processing is recorded by a recorder (Recoder) 242 on the disk 10 Recorded in.

A standard flow chart for creating the above-mentioned disc will be described with reference to FIGS. FIG. 35 shows a flowchart for creating logical data for recording on the disk 10. That is, as shown in step S80, parameter data such as the number of video data files, the arrangement order, and the size of each video data file is set first. Next, volume information is created from the parameters set as shown in step S81 and the file management information of each video data file. After that, as shown in step S82, the data is arranged in the order of the volume information and the video data file along the corresponding logical block number, and the logical data to be recorded on the disk 10 is created.

Thereafter, a flow chart for creating physical data for recording on the disc as shown in FIG. 36 is executed. That is, as shown in step S83, the logical data is divided into a certain number of bytes, and error correction data is generated. Next, as shown in step S84, the logical data divided into a certain number of bytes and the generated error correction data are combined to create a physical sector. Then, as shown in step S85, physical data is created by combining the physical sectors.

In this way, the physical data generated by the flow chart shown in FIG. 36 is subjected to the modulation processing based on the fixed rule to create the recording data. Then, this recording data is recorded on the disc 10.

In the above embodiments, the high density recording type optical disk has been described as the recording medium.
The present invention is directed to a storage medium other than the optical disc, for example,
The present invention can also be applied to a magnetic disk or other physically high-density recordable storage medium.

[0154]

As described above in detail, according to the present invention,
When selecting one of a plurality of audio streams, it is possible to select an audio stream that does not make sense even if it is played back independently, and it is possible to provide a playback device that allows the user to select an audio stream without confusion.

Further, when the file is changed or the optical disk is exchanged, the audio stream of the same language is selected, and it is possible to provide the reproducing apparatus which does not need to reselect the audio stream.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an optical disk reproducing apparatus for explaining an embodiment of the present invention.

FIG. 2 is a diagram for explaining the configuration of a disk drive unit.

FIG. 3 is a perspective view for explaining the configuration of an optical disc.

FIG. 4 is a diagram for explaining a volume structure of an optical disc.

FIG. 5 is a diagram for explaining the structure of a disc information file.

FIG. 6 is a diagram for explaining the structure of a video file.

FIG. 7 is a diagram for explaining a hierarchical structure of image data stored in a file.

8 is an explanatory diagram showing 1 GOP forming the video cell shown in FIG. 7. FIG.

FIG. 9 is a diagram for explaining the contents of cell information stored in a cell information table.

FIG. 10 is a diagram for explaining the content of one piece of sequence information stored in a sequence information table.

FIG. 11 is a diagram for explaining parameters recorded in a file management table.

FIG. 12 is a diagram for explaining video data attributes.

FIG. 13 is a diagram for explaining audio stream attributes.

FIG. 14 is a diagram for explaining sub-picture channel attributes.

FIG. 15 is a block diagram showing a schematic configuration of a video decoder unit.

FIG. 16 is a block diagram showing a schematic configuration of an audio decoder unit.

FIG. 17 is a block diagram showing a schematic configuration of a sub-picture decoder unit.

FIG. 18 is a block diagram showing a schematic configuration of a video reproduction processing unit.

FIG. 19 is a block diagram showing a schematic configuration of an audio reproduction processing unit.

FIG. 20 is a block diagram showing a schematic configuration of an audio mixing unit.

FIG. 21 is a flowchart for explaining a video data attribute acquisition / setting process.

FIG. 22 is a flowchart illustrating an audio stream attribute acquisition / setting process.

FIG. 23 is a diagram for explaining an example of storage of an audio stream attribute table.

FIG. 24 is a diagram showing a display example of a voice selection menu on the monitor unit.

FIG. 25 is a diagram showing a display example of a voice selection menu on the monitor unit.

FIG. 26 is a diagram for explaining a storage example of an audio stream attribute table.

FIG. 27 is a diagram for explaining an example of storage of an audio stream attribute table.

FIG. 28 is a diagram for explaining a storage example of an audio stream attribute table.

FIG. 29 is a flowchart illustrating a process of selecting a stream to be displayed.

FIG. 30 is a flowchart for explaining a sub-picture channel attribute acquisition / setting process.

FIG. 31 is a block diagram showing an encoder system that encodes video data to generate a video file.

32 is a flowchart showing the encoding process shown in FIG. 31. FIG.

FIG. 33 is a flowchart for creating a video data file by combining the main video data, audio data, and sub-video data encoded by the flow shown in FIG. 32.

FIG. 34 is a block diagram showing a system of a disk formatter for recording a formatted video file on an optical disk.

FIG. 35 is a flowchart for creating logical data to be recorded on the disc in the disc formatter shown in FIG. 34.

FIG. 36 is a flowchart for creating physical data to be recorded on a disc from logical data.

[Explanation of symbols]

 4 ... Key operation and display section 6 ... Monitor section 8 ... Speaker section 10 ... Optical disk 30 ... Disk drive section 50 ... System CPU section 52 ... System ROM and RAM 54 ... System processor section 56 ... Data RAM section 56a ... Audio stream attribute Table 56b ... Language code storage section 58 ... Video decoder section 60 ... Audio decoder section 62 ... Sub-picture decoder section 64 ... D / A & playback processing section 113 ... File management table 201 ... Video playback processing section 202 ... Audio playback processing section 203 ... Audio mixing unit 207 ... Sub-picture reproduction processing unit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G11B 27/34 S

Claims (24)

[Claims] 1. A management area is formed in a part of the area, and a data area is formed in another area, and in the data area, an audio stream that is independently reproduced and an audio that is synthesized and reproduced with another audio stream. A reproducing apparatus for reproducing an audio stream from a recording medium in which a plurality of audio streams of a stream are recorded and the audio stream attributes necessary for reproducing the audio streams of the data area are individually recorded in the management area. In which the audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium are read, and each audio stream is independently reproduced by the plurality of audio stream attributes read by the reading means. Determining means for determining whether the audio stream to be reproduced is an audio stream to be reproduced by combining with the other audio stream Display means for displaying a plurality of audio stream attributes read by the reading means for the audio stream judged to be the audio stream to be reproduced alone by the judgment means, and reproduced by the audio stream attribute displayed on the display means. Selecting means for selecting an audio stream to be selected, extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means, and the audio stream extracted by the extracting means by the selecting means. A reproducing device, comprising: a conversion unit that converts to a reproduction output based on an audio stream attribute for the selected audio stream. 2. The audio stream attribute read by the reading means is audio compression mode data indicating an encoding method of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural or surround, and the audio. Audio type data indicating whether the stream is music or language, mixing data indicating whether mixing is possible or not, master stream number indicating a master stream number that can be mixed when the audio stream is a slave stream, and audio type data 2. The reproducing apparatus according to claim 1, wherein the reproducing code is a language code in the case where is a language. 3. The data area is divided into a plurality of sequences, each sequence is composed of a plurality of programs, one program is composed of a plurality of cells, and one cell is composed of a plurality of packs in a hierarchical structure. , Audio data is recorded in some of the packs, and in the management area, sequences, programs, cells of the data area,
The reproducing apparatus according to claim 1, wherein management information for managing the pack is recorded. 4. A storage unit for storing a plurality of audio stream attributes read by the reading unit, wherein the array of the audio stream attributes of the storage unit is reproduced by being combined with another audio stream by the determination unit. The audio stream determined to be the audio stream to be played is placed at the beginning, the audio stream determined to be played alone by the above-mentioned decision means is placed thereafter, and the audio stream to be played alone stored in this storage means is placed. The reproducing apparatus according to claim 1, wherein only the audio stream that is displayed is displayed on the display means. 5. A management area is formed in a part of the area and a data area is formed in another area, and the data area is reproduced by combining the video data and an audio stream that is independently reproduced with another audio stream. A plurality of audio streams of the audio stream to be recorded are recorded, and video data and audio are recorded from the recording medium in which the audio stream attributes necessary for reproducing each audio stream of the data area are individually recorded in the management area. In a reproducing device for reproducing a stream, a reading unit that reads the video data and the audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium, and a plurality of audio stream attributes read by the reading unit Allows each audio stream to be played by combining it with the audio stream that is played independently and with other audio streams. Determining means for determining whether the audio stream is to be reproduced, display means for displaying a plurality of audio stream attributes read by the reading means for the audio stream determined to be reproduced independently by the determining means, and this display Selecting means for selecting an audio stream to be reproduced according to the audio stream attribute displayed on the means, extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means, and the extracting means First conversion means for converting the audio stream extracted by the above into the reproduction output based on the audio stream attribute for the audio stream selected by the above selection means, and the video data read by the above reading means into the reproduction output. A second conversion means, and Reproducing apparatus for. 6. The audio stream attribute read by the reading means is audio compression mode data indicating an encoding method of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural or surround, and the audio. Audio type data indicating whether the stream is music or language, mixing data indicating whether mixing is possible or not, master stream number indicating a master stream number that can be mixed when the audio stream is a slave stream, and audio type data 6. The reproducing apparatus according to claim 5, wherein the reproducing code comprises a language code in the case where is a language. 7. The data area is divided into a plurality of sequences, each sequence is composed of a plurality of programs, one program is composed of a plurality of cells, and one cell is composed of a plurality of packs in a hierarchical structure. 6. The video data and audio data are recorded in some of the packs, and the management information for managing sequences, programs, cells and packs in the data area is recorded in the management area. The playback device described. 8. A storage unit for storing a plurality of audio stream attributes read by the reading unit, wherein the array of the audio stream attributes of the storage unit is combined with another audio stream by the determination unit and reproduced. The audio stream determined to be the audio stream to be played is placed at the beginning, the audio stream determined to be played alone by the above-mentioned decision means is placed thereafter, and the audio stream to be played alone stored in this storage means is placed. The reproducing apparatus according to claim 5, wherein only the audio stream that is displayed is displayed on the display means. 9. A management area is formed in a part of the area, and a data area is formed in the other area. A plurality of files are recorded in the data area, and each file is reproduced independently. A plurality of audio streams, that is, an audio stream that is synthesized and played with a stream and other audio streams, is recorded. In the management area, audio stream attributes necessary for playing each audio stream in the data area are individually recorded. In a reproducing device for reproducing an audio stream from a recorded recording medium, a reading means for reading the audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium, and a reading means read by the reading means. Multiple audio stream attributes allow each audio stream to be combined with the audio stream that is played independently and with other audio streams. Determining means for determining whether the audio stream is reproduced and reproduced, and display means for displaying a plurality of audio stream attributes read by the reading means for the audio stream judged to be the audio stream independently reproduced by the determining means. Selecting means for selecting an audio stream to be reproduced according to the audio stream attribute displayed on the display means; and extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means. A reproducing device comprising: a converting unit that converts the audio stream extracted by the extracting unit into a reproduction output based on an audio stream attribute of the audio stream selected by the selecting unit. 10. The audio stream attribute read by the reading means is audio compression mode data indicating an encoding method of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural, or surround, and the audio. Audio type data indicating whether the stream is music or language, mixing data indicating whether mixing is possible or not, a master stream number indicating a mixable master stream number when the audio stream is a slave stream,
The reproduction apparatus according to claim 9, wherein the audio type data includes a language code when the language is a language. 11. A file in the data area is
Divided into multiple sequences, each sequence consists of multiple programs, one program consists of multiple cells, one cell consists of multiple packs, and some packs contain audio data. 10. The reproducing apparatus according to claim 9, wherein management information for managing sequences, programs, cells, and packs for each file in the data area is recorded in the management area. 12. A storage unit for storing a plurality of audio stream attributes read by the reading unit, and an array of the audio stream attributes of the storage unit is reproduced by being combined with another audio stream by the determination unit. Place the audio stream determined to be the
An audio stream judged to be an audio stream to be reproduced independently by the judging means is arranged after that, and only the audio stream to be reproduced independently stored in the storage means is displayed on the display means. The playback device according to claim 9, wherein the playback device is a playback device. 13. A management area is formed in a part of the area, and a data area is formed in another area. A plurality of files are recorded in the data area, and each file contains video data alone. A plurality of audio streams of an audio stream to be reproduced and an audio stream to be synthesized and reproduced with another audio stream are recorded, and in the management area,
In a reproducing apparatus for reproducing video data and an audio stream from a recording medium in which audio stream attributes necessary for reproducing each audio stream in the data area are individually recorded, the video data and the audio in the data area of the recording medium are recorded. A reading unit that reads the stream and the audio stream attribute of the management area of the recording medium, and an audio stream that is independently reproduced by each audio stream based on the plurality of audio stream attributes read by the reading unit, and another audio stream. Judgment means for judging whether the audio stream is synthesized and reproduced, and a display for displaying a plurality of audio stream attributes read by the reading means for the audio stream judged as the audio stream reproduced alone by the judgment means. Means and the audio stream displayed on this display means Selecting means for selecting an audio stream to be reproduced by the audio attribute, extracting means for extracting the audio stream selected by the selecting means from the audio stream read by the reading means, and the audio stream extracted by the extracting means. First conversion means for converting to reproduction output based on an audio stream attribute for the audio stream selected by the selection means, and second conversion means for converting the video data read by the reading means into reproduction output, A reproducing apparatus comprising: 14. The audio stream attribute read by the reading means is audio compression mode data indicating an encoding method of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural, or surround, and the audio. Audio type data indicating whether the stream is music or language, mixing data indicating whether mixing is possible or not, a master stream number indicating a mixable master stream number when the audio stream is a slave stream,
14. The reproducing apparatus according to claim 13, wherein the audio type data includes a language code when the language is a language. 15. One file in the data area is
Divided into multiple sequences, each sequence consists of multiple programs, one program consists of multiple cells, one cell consists of multiple packs, and some packs contain video data and audio. 14. The reproducing apparatus according to claim 13, wherein data is recorded, and management information for managing sequences, programs, cells, and packs for each file in the data area is recorded in the management area. 16. A storage unit for storing a plurality of audio stream attributes read by the reading unit, and an array of the audio stream attributes of the storage unit is reproduced by being combined with another audio stream by the determination unit. Place the audio stream determined to be the
An audio stream judged to be an audio stream to be reproduced independently by the judging means is arranged after that, and only the audio stream to be reproduced independently stored in the storage means is displayed on the display means. The playback device according to claim 13, wherein the playback device is a playback device. 17. A management area is formed in a part of the area, and a data area is formed in another area. A plurality of files are recorded in the data area, and each file is a sound that is reproduced independently. A plurality of audio streams, that is, an audio stream that is synthesized and played with a stream and other audio streams, is recorded. In the management area, audio stream attributes necessary for playing each audio stream in the data area are individually recorded. In a reproducing device for reproducing an audio stream from a recorded recording medium, a reading means for reading the audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium, and a reading means read by the reading means. Multiple audio stream attributes allow each audio stream to be played separately from other audio streams. First judging means for judging whether the audio stream is generated and reproduced, and a plurality of audios read by the reading means for the audio stream judged to be the audio stream independently reproduced by the first judging means. Display means for displaying stream attributes, selecting means for selecting an audio stream to be reproduced according to the audio stream attribute displayed on the display means, and storage for storing a language code corresponding to the audio stream selected by the selecting means. And a language code corresponding to each audio stream of a new storage medium or new file and a language code stored in the storage means when the storage medium is replaced or the file to be reproduced is changed. Second judging means for comparing and judging an audio stream corresponding to a matching language code; Extraction means for extracting the audio stream selected by the selection means or the audio stream determined by the second determination means from the audio stream read by the reading means, and the audio stream extracted by the extraction means A reproducing device comprising: a converting unit for converting into a reproduction output based on an audio stream attribute for the audio stream selected by the means or an audio stream attribute for the audio stream judged by the second judging means. . 18. The audio stream attribute read by the reading means is audio compression mode data indicating an encoding system of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural, or surround, and the audio. Audio type data indicating whether the stream is music or language, mixing data indicating whether mixing is possible or not, a master stream number indicating a mixable master stream number when the audio stream is a slave stream,
18. The reproducing apparatus according to claim 17, wherein the audio type data includes a language code in the case of a language. 19. One file in the data area is
Divided into multiple sequences, each sequence consists of multiple programs, one program consists of multiple cells, one cell consists of multiple packs, and some packs contain video data and audio. 18. The reproducing apparatus according to claim 17, wherein data is recorded, and management information for managing sequences, programs, cells, and packs for each file in the data area is recorded in the management area. 20. A storage unit for storing a plurality of audio stream attributes read by the reading unit, wherein the array of the audio stream attributes of the storage unit is combined with another audio stream by the determination unit and reproduced. Place the audio stream determined to be the
An audio stream judged to be an audio stream to be reproduced independently by the judging means is arranged after that, and only the audio stream to be reproduced independently stored in the storage means is displayed on the display means. 18. The playback device according to claim 17, wherein the playback device is a playback device. 21. A management area is formed in a part of the area, and a data area is formed in another area. In the data area, an audio stream that is independently reproduced and an audio that is synthesized and reproduced with another audio stream. A plurality of audio streams of a stream are recorded, and an audio stream is reproduced from a recording medium in which the audio stream attributes necessary for reproducing each audio stream of the data area are individually recorded in the management area. The audio stream of the data area of the recording medium and the audio stream attribute of the management area of the recording medium are read, and each audio stream is reproduced independently by the plurality of read audio stream attributes. Determine whether it is an audio stream that is played back after being combined with the audio stream, and The read multiple audio stream attributes for the determined audio stream are displayed, the audio stream to be reproduced is selected according to the displayed audio stream attribute, and the selected audio stream is selected from the read audio streams. A reproducing method comprising: extracting, and converting the extracted audio stream into a reproduction output based on an audio stream attribute for the selected audio stream. 22. The audio stream attribute to be read is audio compression mode data indicating an encoding method of the audio stream, audio mode data indicating whether the audio stream is stereo, monaural or surround, and the audio stream is music. Audio type data indicating whether or not mixing is possible, mixing data indicating whether mixing is possible or not, a master stream number indicating a master stream number that can be mixed when the audio stream is a slave stream, and audio type data indicates a language. 22. The reproducing method according to claim 21, further comprising a language code for the case. 23. One file of the data area is
Divided into multiple sequences, each sequence consists of multiple programs, one program consists of multiple cells, one cell consists of multiple packs, and some packs contain audio data. 22. The reproducing method according to claim 21, wherein management information for managing sequences, programs, cells, and packs for each file in the data area is recorded in the management area. 24. The plurality of read audio stream attributes are stored, and an audio stream determined to be an audio stream to be reproduced by combining the array of the stored audio stream attributes with the other audio stream is headed. 22. The audio stream determined to be the independently reproduced audio stream is arranged after that, and only the stored independently reproduced audio stream is displayed. Reproduction method described in.