JP2002300519A - Av data copying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means of copying AV data and disk image data, constituted of AV data management information managing AV data into a medium of a different disk in the unit of PG information. SOLUTION: The device is provided with an AV data management information file read means for reading an AV data management information file, an additional PG information acquirement means acquiring information of the copied PG, an AV data read means reading AV data required in the reproduction of copied PG, an AV data additional means adding AV data to the disk of an output destination, an AV data management information generating means without PG which generates AV data management information that does not have PG information, a PG information additional means which newly adds additional PG information to AV data management information, an address information correction means for correcting the deviation in address information by the addition of PG and an AV data management information file writing means for writing AV data management information into the disk of the output destination.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to disk image data composed of AV data and AV data management information for managing the AV data.
The present invention relates to an AV data duplicating apparatus that performs editing for copying or adding data in units of management information having a logical meaning in reproducing data.

For example, a unit of logically significant PG (program) management information of AV data management information according to the VR (video recording) standard, which is a standard for recording AV data on a disk medium such as an optical disk. , Allows editing.

FIGS. 10 and 11 show an outline of a logical configuration of AV data and AV data management information to be handled in the present invention.

In FIG. 10, reference numeral 1001 denotes an AV data management information file configuration having AV data on a disk and information on the disk. As shown in the figure, the AV data management information file configuration mainly collects information of the entire disk. Disk information management unit, AV data attributes and A
An AV data attribute management unit that organizes link information of V data, a PG information management unit that organizes program information such as a reproduction order by combining AV data, and other data management units. AV data attribute link information for referring to the attribute of the stream to be actually reproduced from the information section. Reference numeral 1002 denotes an AV data file configuration composed of streams of moving images, audios, still images, and the like on the disc. The AV
From the data attribute management unit to the AV data file configuration 10
02 is the AV data stream link information for referring to the AV data stream in No. 02.

[0005] In FIG. 11, reference numeral 1005 denotes a configuration of PG information and other data management units extracted from the PG information management unit and other data management units. As shown in FIG. PG indicating
Ce for referencing information and the actual stream to play
1006 is simple Cell attribute information having only Cell attribute information.
Reference numeral 7 denotes Cell attribute information and marker management information having an area for holding an arbitrary position of the cell information and the reproduction position as a marker. Reference numeral 1009 denotes link information for referring to ITEM_TEXT in the other data management unit from the PG information. Yes, 1008 is ITEM_TEXT information describing additional information for describing the PG.

[0006]

2. Description of the Related Art A conventional AV data copying apparatus will be described below.

FIG. 12 is a block diagram showing an outline of a conventional procedure of an AV data copying apparatus for copying AV data recorded on an original disc and AV data management information for managing the AV data to another disc. FIG.

In FIG. 12, reference numeral 11 denotes an original AV data management information file recorded on the original disk, reference numeral 11a denotes an AV data management information file after duplication of the above-mentioned 11, and reference numeral 15 denotes a file recorded on the original disk. The original AV data file 15a is a duplicated AV data file obtained by duplicating the original AV data file 15.

FIG. 12 shows a state in which all information is directly copied to a copy destination disk without being aware of the internal structure in order to copy AV data and AV data management information.

FIG. 13 is a block diagram showing an example of a conventional procedure of an AV data copying apparatus for copying AV data recorded on an original disc and AV data management information for managing the AV data to another disc. It is.

In FIG. 13, reference numeral 11 denotes an original AV data management information file recorded on an original disk, reference numeral 21 denotes an AV data management information file reading means for reading the original AV data management information file, and reference numeral 201 denotes a memory. Read A read on
V data management information, 29 is A
V data management information file writing means for writing V data management information; 210, write AV data management information to be written to a disc; 11a, post-copy AV data management written to an output destination disc; An information file, 15 is an original AV data file recorded on the original disc, 24 is AV data reading means for reading the original AV data file, and 204 is read AV data read on the memory. , 25 are AV data appending means for appending AV data to the output destination disc, 205 is write AV data to be written on the disc, and 15 is
a is a post-copy AV data file written on the output destination disk.

The operation of the AV data duplicating apparatus configured as described above will be described below with reference to FIG.

The AV data management information on the original disk read into the memory by the AV data management information file reading means 21 is written to the output destination disk by the AV data management information file writing means 29, and the original AV data is written. At the same time as creating the post-duplication AV data management information file 11a, which is a copy of the data management information file 11, the AV data reading means 24 outputs the AV data on the original disk read into the memory by the AV data appending means 25. By writing on the previous disk and creating a duplicated AV data file 15a which is a duplicate of the original AV data file 15, a duplicated disk having the same AV data file and AV data management information file as the files on the original disk can be copied. Create .

[0014]

However, in the above-mentioned conventional configuration, all information is duplicated without discriminating between necessary AV data and unnecessary AV data on the original disk, so that the capacity of the disk required for the duplication is increased. And the time required for duplication also increases accordingly.

Also, since the data structure is not analyzed, the previous data is overwritten when the data already exists on the output destination disk.
There is also a problem that the process of appending data cannot be performed.

The present invention is intended to solve the above-mentioned conventional problem. By selecting and adding only necessary AV data on an original disc, it is possible to reduce the capacity and time of the disc required for duplication. Enabled, and if there is data on the output destination disk, leave the previous data
It is an object of the present invention to provide an AV data duplication device that can additionally record V data.

[0017]

In order to achieve this object, an AV data duplicating apparatus according to the present invention uses AV data and its A
An AV data duplication apparatus for duplicating data composed of AV data management information for managing V data, an AV data management information file reading means for reading an original AV data management information file, and an ID of a PG to be duplicated Additional PGID setting means for setting the P
Additional PG information acquiring means for acquiring G information, AV data reading means for reading AV data required for reproduction of PG to be copied, and AV data additional recording for appending the read AV data to an output destination disk Means and A without PG for creating AV data management information without PG information
V data management information creation means, PG information addition means for newly adding PG information to be added to AV data management information,
It is characterized by comprising address information correction means for correcting a deviation of address information managed by appending PG, and AV data management information file writing means for writing AV data management information to an output destination disk. And

Thus, an arbitrary PG on the original disc is selected, and the AV required for reproducing the PG is selected.
It is possible to duplicate only the data on another disk.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An AV data duplicating apparatus according to claim 1 of the present invention is an apparatus for duplicating data composed of AV data and AV data management information for managing the AV data.
A V-data duplication device, an AV data management information file reading means for reading an original AV data management information file, an additional PG ID setting means for setting an ID of a PG to be duplicated, and an additional recording for acquiring information of a PG to be duplicated PG information obtaining means, AV data reading means for reading AV data required for reproducing the PG to be copied, AV data adding means for additionally writing the read AV data on the output destination disk, and PG information. No AV
PG-free AV data management information creating means for creating data management information, PG information adding means for newly adding PG information to be added to the AV data management information, and correcting deviation of address information managed by adding PG And an AV data management information file writing means for writing AV data management information to an output destination disk.

This AV data duplication device can select an arbitrary PG on the original disk and create a copy of only the AV data necessary for reproducing the PG on another disk.

According to a second aspect of the present invention, there is provided an AV data copying apparatus according to the first aspect, wherein the PG information additional recording means acquires all the Cell information constituting the PG information to be additionally recorded, AV data attribute information appending means for appending the attribute information of the AV data referred to by the Cell information to the AV data management information, and Cell for appending the Cell information constituting the PG information to the AV data management information
The PG information management unit corrects the PG information management unit by additionally writing new PG information composed of the Cell information added by the Cell information addition unit.

This AV data duplicating apparatus uses a PG to be duplicated.
It is possible to analyze the configuration of the Cell and to correctly create a copy on another disk even when the Cell is composed of a plurality of Cells.

According to a third aspect of the present invention, in the AV data duplication apparatus according to the second aspect, the additional cell information acquiring means adds marker information holding time information indicating a position of each scene as a marker to the cell information. And a marker information adding unit that adds the marker information to the Cell information as needed, and a Cell information adding unit that adds the marker information to the AV data management information. It is characterized by having.

This AV data duplication device uses a PG to be duplicated.
Is correctly analyzed even when marker information indicating scene time information is included in the Cell information,
It is possible to make a duplicate on another disk.

According to a fourth aspect of the present invention, in the AV data duplicating apparatus according to the second aspect, the cell information appending means appends the additional cell information to the AV data management information and lists the additionally written cell information as a list. In the case where the PG information management unit correction unit has the representative image position information indicating the representative scene of the PG, the PG information management unit corrector acquires the representative image position information and adds the representative image position information with reference to the added cell information list as necessary. And a representative image position correcting means for correcting the representative image position of the PG.

This AV data duplication device uses the PG to be duplicated.
It is possible to create a copy on another disk by analyzing the position information of the representative image set in the PG and correcting the position information of the representative image of the copied PG.

According to a fifth aspect of the present invention, there is provided an AV data copying apparatus according to the second aspect, wherein the PG to be additionally written is an ITEM_T in which information such as a program genre and description is described.
An additional ITEM_TEXT information acquiring means for acquiring the ITEM_TEXT information when having the EXT information; and an ITEM_TEXT information additional means for adding the ITEM_TEXT information to the AV data management information as needed.
The PG information management unit correction means uses the added ITEM_TEXT
Based on the ID information indicating the position of the information, the IT of the added PG
And a function of correcting link information to EM_TEXT information.

This AV data duplicating apparatus uses a PG to be duplicated.
ITEM_ such as genres and comments set in
The TEXT information is analyzed, and the ITEM_TE of the copied PG is analyzed.
After adding the XT information, it is possible to correct the reference to the ITEM_TEXT information and create a copy on another disk.

According to a sixth aspect of the present invention, there is provided the AV data copying apparatus according to the first aspect, wherein the additional write PG setting unit is configured to execute A
In order to additionally record all PGs included in the V data management information, PG numbers are set in order from 1 and the additional PG information acquisition means acquires the PG information of the designated number and adds the PG first. The additional PG number is added to the data management information, and the added PG number is compared with the total number of PGs.
When the total number of G is exceeded, the process is terminated, and when the total is not exceeded, additional PG setting means for increasing the PG number by 1 and setting the PG number to be additionally written is provided.

This AV data duplicating apparatus repeats PG
Is repeated, it is possible to collectively copy all PGs in the original disk and create a duplicate on another disk.

According to a seventh aspect of the present invention, there is provided an AV data duplicating apparatus according to the first aspect, wherein the additional recording PG information acquiring means acquires in advance the size of the AV data to be additionally recorded and the remaining capacity of the recording destination disk. Is compared with the remaining disk capacity and the size of the AV data. If the remaining disk capacity is not sufficient, the process is terminated. If the remaining disk capacity is sufficient, the PG appending process is continued. And an AV data size comparing means.

This AV data copying apparatus checks the remaining capacity of the disk before copying the PG, and then performs the copying, thereby reducing the processing time without performing useless copying. Is possible.

An AV data duplicating apparatus according to claim 8 of the present invention is an AV data duplicating apparatus for additionally duplicating data composed of AV data and AV data management information for managing the AV data on an additional recording destination disk. An AV data management information file reading means for reading an original AV data management information file; an additional PG ID setting means for setting an ID of a PG to be added;
Additional PG information acquiring means for acquiring G information, AV data reading means for reading AV data necessary for reproducing the PG to be additionally recorded, and AV data additional recording for additionally writing the read AV data to a recording destination disk Means, an AV data management information file reading means for reading an AV data management information file recorded on a recording destination disk, a PG information recording means for newly adding PG information to be added to the AV data management information, It is characterized by comprising address information correcting means for correcting a deviation of address information managed by appending PG, and AV data management information file writing means for writing AV data management information to a disc to which additional information is to be added. .

This AV data duplicating apparatus selects an arbitrary PG on the original disk when data already exists on the output destination disk, and transfers only the AV data necessary for reproducing the PG to the output destination disk. Can be added.

According to a ninth aspect of the present invention, there is provided the AV data copying apparatus according to the eighth aspect, wherein the PG information appending means acquires all the Cell information constituting the PG information to be additionally recorded; AV data attribute information appending means for appending the attribute information of the AV data referred to by the Cell information to the AV data management information, and Cell for appending the Cell information constituting the PG information to the AV data management information
The PG information management unit corrects the PG information management unit by additionally writing new PG information composed of the Cell information added by the Cell information addition unit.

This AV data duplication apparatus analyzes the structure of the cell of the PG to be duplicated when data already exists on the output destination disk, and correctly appends the data to the output destination disk even when the cell is composed of a plurality of cells. It is possible to

According to a tenth aspect of the present invention, in the AV data duplication apparatus according to the ninth aspect, the additional recordable cell information obtaining means adds marker information holding time information indicating a position of each scene as a marker to the Cell information. And a marker information adding unit that adds the marker information to the Cell information as needed, and a Cell information adding unit that adds the marker information to the AV data management information. It is characterized by having.

This AV data duplication apparatus analyzes the structure of the Cell of the PG to be duplicated when data already exists on the output destination disk, and correctly analyzes the cell information even if the Cell information contains marker information indicating the time information of the scene. Can be added to the output destination disk.

In the AV data duplicating apparatus according to claim 11 of the present invention, in the ninth aspect, the cell information appending means appends the cell information to be added to the AV data management information, and lists the added cell information as a list. In the case where the PG information management unit correction unit has the representative image position information indicating the representative scene of the PG, the PG information management unit corrector acquires the representative image position information and adds the representative image position information with reference to the added cell information list as necessary. And a representative image position correcting means for correcting the representative image position of the PG.

This AV data copying apparatus analyzes the position information of the representative image set in the PG to be copied, which already has data on the output destination disk, and corrects the position information of the representative image of the copied PG. Then, it is possible to additionally record on the output destination disk.

According to a twelfth aspect of the present invention, in the AV data duplication apparatus according to the ninth aspect, when the PG to be added has ITEM_TEXT information that describes information such as a genre and a description, the additional data ITEM_TEXT is obtained. Information acquisition means and, if necessary, A
ITEM_TEXT information appending means for appending ITEM_TEXT information to the V data management information, and the PG information management section correcting means based on ID information indicating the position of the appended ITEM_TEXT information,
A function of correcting link information to XT information.

This AV data copying apparatus analyzes ITEM_TEXT information such as a genre and a comment set in the PG to be copied because the data already exists on the output destination disk, and after adding the ITEM_TEXT information of the PG after the copying, It is possible to correct the reference to the ITEM_TEXT information and add it to the output destination disk.

According to a thirteenth aspect of the present invention, in the AV data duplication apparatus according to the eighth aspect, the additional recording PG setting means includes:
In order to additionally write all PGs included in the AV data management information, PG numbers are set in order from 1 and the additional PG information obtaining means obtains the PG information of the designated number, and first sets the PG information.
Is further added to the added AV data management information, and the added PG number is compared with the total number of PGs. If the PG number exceeds the total number of PGs, the process is terminated. Additional PG setting means for setting the number of the PG to be added by incrementing the PG number by one.

In this AV data copying apparatus, data already exists on the output destination disk, and by repeatedly adding PGs, all PGs in the original disk can be collectively written on the output destination disk. It is possible.

According to a fourteenth aspect of the present invention, in the AV data duplication apparatus according to the eighth aspect, the additional recording PG information acquiring means acquires the size of the AV data to be additionally recorded in advance, and stores the remaining capacity of the recording destination disk. Is compared with the remaining disk capacity and the size of the AV data. If the remaining disk capacity is not sufficient, the process is terminated. If the remaining disk capacity is sufficient, the PG appending process is continued. And an AV data size comparing means.

This AV data duplicating apparatus performs an additional duplication process by checking the remaining capacity of the disc before duplicating the PG after data already exists on the output destination disc, thereby performing unnecessary duplication processing. , The processing time can be reduced.

(Embodiment 1) FIG. 1 is a block diagram showing an outline of processing of an AV data copying apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 11 denotes an original AV data management information file recorded on the original disk, 12 denotes an additional recording destination AV data management information file to be added, and 13 denotes an existing AV data management information file. AV data management information appending means for appending PG information and the like of another AV data management information to another AV data management information, and 14 designates an original AV data management information file in the append destination AV data management information file 12. A post-recording AV data management information file created as a result of appending PG information with a mark, 15 is an original AV data file recorded on the original disk, and 16 is a post-recording destination AV data file to be post-recorded Yes, 17 is the AV data that adds the AV stream data to the existing AV data. It is a postscript means, 18 recordable destination A
This is an added AV data file in which only the AV stream data included in the PG to be copied from the original AV data file is added to the V data file.

In FIG. 1, in order to copy AV data and AV data management information, the internal configuration is analyzed, and necessary PG information from the AV data management information to be copied is added to the existing AV data management information. P to existing AV data
This shows a state in which AV stream data necessary for duplication of G is additionally recorded and is duplicated to a duplication destination disk.

FIG. 2 is a block diagram showing a configuration of the AV data copying apparatus according to the first embodiment of the present invention.

In FIG. 2, reference numeral 11 denotes an original AV data management information file recorded on an original disk, reference numeral 21 denotes an AV data management information file reading means for reading the original AV data management information file, and reference numeral 201 denotes a memory. Read AV loaded on
22 is additional recording PGID setting means for setting the ID of the PG to be added, 202 is additional PGID information indicating the PG to be added, and 23 is the I
A write-once PG information obtaining means for obtaining information of a PG to be additionally written based on D, and 203 is an additional write-on AV indicating an ID of AV stream data necessary for reproducing the PG to be additionally written
Data ID information 15 is an original AV data file recorded on the original disc,
Reference numeral 24 denotes AV data reading means for reading an original AV data file, 204 denotes read AV data read on a memory, and 25 denotes AV data adding means for additionally writing AV data on an output destination disk.
05 is the write AV data to be written to the disc, and 18 is the post-recording AV data written to the output destination disc.
A data file 206 is additional PG information indicating information of a PG to be added, 26 is PG-free AV data management information creating means for creating AV data management information containing no PG information, and 207 is PG information. P without
27 is the AV data management information without G.
PG information appending means for appending to the G-less AV data management information 207; 208, post-PG additional AV data management information after appending PG information; and 28, correction of a management address shifted due to PG appending. 209 is address corrected AV data management information after address correction, and 29 is AV data management information file writing means for writing AV data management information on an output destination disk. , 210 are write AV data management information to be written on the disc,
Reference numeral 4 denotes a post-additional AV data management information file written on the output destination disk.

Next, the operation of the AV data copying apparatus according to the first embodiment configured as described above will be described with reference to FIG.

Based on the AV data management information on the original disk read into the memory by the AV data management information file reading means 21, the information of the ID of the PG set by the additional PG ID setting means 22 is obtained. The means 23 analyzes and sets the ID of the AV stream data that needs to be copied based on the PG information, and the AV data reading means 24 reads the AV stream data from the AV data in the original disc and reads The added AV stream data is added as AV data to the output destination disk by the AV data adding means 25, thereby creating a post-additional AV data file having the AV stream data necessary for reproducing the PG to be added, and The PG information analyzed by the information acquisition means 23 is converted into AV data without PG. Append with PG information management unit in the management information 207, address information correcting means corrects the address information such as the offset value deviates from the write once of PG by 28, means writes AV data management information file 2
9 to write to the output destination disk and add
By creating a post-recording AV data management information file having G information, a duplicate disc having management information of any PG on the original disc and AV data is created.

As described above, according to the first embodiment, an arbitrary PG on the original disc is selected, and the PG is selected.
It is possible to make a copy of only the AV data necessary for the reproduction of another disc on another disk.

(Embodiment 2) FIG. 3 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 2 of the present invention.

In FIG. 3, reference numeral 27 corresponds to the PG information additional recording means shown in FIG.
Is additional record cell information acquisition means for acquiring Cell information, which constitutes attribute information of AV stream data related to the additional Cell information;
AV data attribute information appending means for appending the attribute of the stream data. Reference numeral 302 denotes one or more Cell to be appended.
Cell list information consisting of
1 is a cell information appending unit for appending l information,
Reference numeral 34 denotes PG information after the additional recording of the cell information, and reference numeral 34 denotes a PG information management unit correction unit that corrects an address offset shift or the like generated in the PG management unit due to the additional recording of the cell.

Next, the operation of the AV data copying apparatus according to the second embodiment configured as described above will be described with reference to FIG.

The procedure leading to the PG information additional recording means 27 is the same as the procedure described in the first embodiment, and one or more Ce constituting the PG additionally recorded by the additional
11 of the AV data attribute information adding means 32
And the attribute information of the AV stream data related to the additional cell is added by the
After the l information is additionally written, the added PG information is corrected by the PG information management unit correction means 34, and the subsequent processing is the same as the procedure after the PG information writing means 27 described in the first embodiment.

As described above, according to the second embodiment, it is possible to analyze the configuration of the Cell of the PG to be duplicated, and to correctly create a duplicate on another disk even when the PG is composed of a plurality of Cells. is there.

(Embodiment 3) FIG. 4 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 3 of the present invention.

In FIG. 4, reference numeral 27 corresponds to the PG information additional recording means shown in FIG.
Is additional record cell information acquisition means for acquiring Cell information, which constitutes attribute information of AV stream data related to the additional Cell information;
AV data attribute information appending means for appending the attribute of the stream data. Reference numeral 302 denotes one or more Cell to be appended.
Is additional post-cell list information consisting of
When the marker information, which is time information for indicating the position of the scene, is added to the ll, marker information adding means for additionally writing the marker information to the cell, 33 is a cell information adding means for adding the cell information, 303 is Ce
This is the PG information after the Cell information has been added after the addition of the
Numeral PG information management unit correction means for correcting an address offset shift or the like caused in the PG management unit by the additional recording of the cell.

Next, the operation of the AV data copying apparatus of the third embodiment configured as described above will be described with reference to FIG.

The procedure leading to the PG information additional recording means 27 is the same as the procedure described in the first embodiment, and one or more Cs constituting the PG to be additionally recorded by the additional cell information acquiring means 31.
of the AV data attribute information adding means 3
2, the attribute information of the AV stream data related to the additional recording cell is additionally recorded, and
When adding the marker information added to the l information,
The marker information is added to the Cell information within a range that does not exceed the upper limit of the number of markers that can be recorded on the disc, and the processing after the Cell information adding means 33 is the same as the procedure after the Cell information adding means described in the third embodiment.

As described above, according to the third embodiment, the structure of the Cell of the PG to be copied is analyzed, and even when the Cell information includes the marker information indicating the time information of the scene, it is correctly copied to another disk. It is possible to create

(Embodiment 4) FIG. 5 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 4 of the present invention.

In FIG. 5, 27 corresponds to the PG information additional recording means shown in FIG.
Is additional record cell information acquisition means for acquiring Cell information, which constitutes attribute information of AV stream data related to the additional Cell information;
AV data attribute information appending means for appending the attribute of the stream data. Reference numeral 302 denotes one or more Cell to be appended.
Cell list information consisting of
1 is a cell information appending unit for appending l information,
Numeral PG information after the cell information has been additionally recorded, PG information management unit correcting means 34 for correcting an address offset or the like generated in the PG management unit due to the cell addition, and 501 represents a representative image of the PG. C containing
Additional record Cell information indicating the position of the cell, reference numeral 502 indicates PG representative image position information indicating the position of the representative image included in the PG information, and reference numeral 51 indicates a representative image shifted from the actual position with the additional PG. Is a representative image position correcting means for correcting the reference position of the cell.

Next, the operation of the AV data copying apparatus according to the fourth embodiment configured as described above will be described with reference to FIG.

The procedure leading to the PG information appending means 27 is the same as the procedure described in the first embodiment, and the procedure leading to the PG information management section correcting means 34 is the same as the procedure described in the second embodiment. The representative image position correcting means 51 uses the Cel information to indicate the position of the representative image included in the PG information.
Correction is made to the correct position information by referring to the Cell information added by the l information adding means 33, and the subsequent processing is the same as the procedure after the PG information adding means 27 described in the first embodiment.

As described above, according to the fourth embodiment, the position information of the representative image set in the PG to be copied is analyzed, and the position information of the representative image of the copied PG is corrected. It is possible to create a duplicate.

(Embodiment 5) FIG. 6 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 5 of the present invention.

In FIG. 6, reference numeral 27 corresponds to the PG information additional recording means shown in FIG.
Is additional record cell information acquisition means for acquiring Cell information, which constitutes attribute information of AV stream data related to the additional Cell information;
AV data attribute information appending means for appending the attribute of the stream data. Reference numeral 302 denotes one or more Cell to be appended.
Cell list information consisting of
1 is a cell information appending unit for appending l information,
Is the PG information after the cell information has been additionally recorded, and 61 is the ITEM_T associated with the PG information.
A write-once ITEM_TEXT information obtaining means for obtaining the ITEM_TEXT information when the EXT information exists, and 601 denotes a write-once I associated with the PG information to be additionally written
TEM_TEXT information 62 is ITEM_TE for adding ITEM_TEXT information to AV data management information.
XT information additional writing means, 602 is the added ITEM_
Additional ITEM_TXT_ID indicating the position of TEXT information
Numeral 34 denotes information offset shift and ITEM_TEX generated in the PG management unit due to the additional recording of the Cell.
PG information management unit correction means for correcting the reference position to the T information.

Next, the operation of the AV data copying apparatus of the fifth embodiment configured as described above will be described with reference to FIG.

The procedure leading to the PG information appending means 27 is the same as the procedure described in the first embodiment, and the procedure leading to the PG information management section correcting means 34 is the same as the procedure described in the second embodiment. If there is ITEM_TEXT information associated with the PG information to be added,
The M_TEXT information acquisition means 61 acquires ITEM_TEXT information from the original AV data management information,
The TEM_TEXT information appending means 62 appends ITEM_TEXT information to the AV data management information at the recording destination, and
When the PG information management unit is corrected by the information management unit correction unit 34, the reference position regarding the added ITEM_TEXT information is also corrected, and the subsequent processing is performed after the PG information addition unit 27 described in the first embodiment. Is the same as

As described above, according to the fifth embodiment, the genre and the comment set in the PG to be copied
TEM_TEXT information is analyzed, and PG ITE after duplication
After adding the M_TEXT information, it is possible to correct the reference to the ITEM_TEXT information and create a copy on another disk.

(Embodiment 6) FIG. 7 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 6 of the present invention.

In FIG. 7, reference numeral 21 denotes an AV data management information file reading means for reading an original AV data management information file, 201 denotes read AV data management information read on a memory, and 22a denotes a start of a PG to be added. Additional write PGID setting means (ID = 1) for setting the ID as 1; additional write PGID information (ID = 1) 202 indicating a PG to be additionally added;
Is additional recording PG information acquiring means for acquiring information of a PG to be additionally recorded based on the ID of the additional recording. Reference numeral 203 denotes additional recording AV data ID information indicating an ID of AV stream data necessary for reproducing the PG to be additionally recorded. Is AV data reading means for reading the original AV data file,
Reference numeral 206 denotes additional PG information indicating information of the PG to be added, and 27 denotes a P for additionally writing the PG information to the AV data management information.
G information additional recording means, 71 is PGID comparing means for comparing the ID of the added PG with the total number of PGs of the original AV data management information, and 22b is an additional recording PGID for setting the PG ID by incrementing by one. Setting means (ID = ID +
1), and 202b is additional PGID information (ID update) indicating a PG to be newly added.

Next, the operation of the AV data copying apparatus according to the sixth embodiment configured as described above will be described with reference to FIG.

Additional PGID setting means (ID = 1) 22a
After the PG information to be added is acquired by the additional PG information acquiring means 23 by setting the ID of the PG to be added from the first one in the step 1, the AV data reading means 24 and subsequent processing reads the AV data. The procedure for performing the additional writing is the same as the procedure after the AV data reading means 24 described in the first embodiment, and the procedure for additionally writing the PG information in the processing after the PG information adding means 27 is described in the first embodiment. The procedure is the same as that of the PG information appending means 27 and subsequent steps. The PGID comparing means 71 compares the number of all PGs in the original AV data management information with the PGID comparing means 71 to determine the end of the processing. Otherwise, the additional PG ID is increased by one in the additional PG ID setting means (ID = ID + 1), and the additional PG information acquisition means 23 reads and writes the PG again. Repeating the write-once recording process of G.

As described above, according to the sixth embodiment, it is possible to collectively copy all the PGs in the original disk and create a duplicate on another disk by repeatedly adding the PGs.

(Embodiment 7) FIG. 8 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 7 of the present invention.

In FIG. 8, reference numeral 23 denotes additional PG information acquisition means for acquiring information of a PG to be additionally recorded based on the ID of the PG, and 203 denotes an ID of AV stream data necessary for reproducing the PG to be additionally recorded. Additional write AV data ID
Reference numeral 24 denotes AV data reading means for reading the original AV data file, 206 denotes additional PG information indicating information of PG to be added, and 27 denotes additional PG information to the PG-free AV data management information 207. PG
Information additional recording means; 801, a write AV data size indicating a disk size required for additionally writing AV data; 81, a disk remaining capacity obtaining means for obtaining a remaining disk capacity of a writing destination disk; Reference numeral 802 denotes a remaining disk size of a recording destination, and reference numeral 82 denotes a write AV data size comparing means for comparing the remaining disk capacity of the recording destination with the size of AV data to be additionally recorded.

Next, the operation of the AV data copying apparatus according to the seventh embodiment configured as described above will be described with reference to FIG.

The PG information to be additionally recorded is acquired by the additional recording PG information acquiring means, the size of the AV data to be additionally recorded is acquired, and the remaining capacity of the recording destination disk acquired by the disc remaining capacity acquiring means 81 and the AV data to be additionally recorded are acquired. , And the comparison is performed by the AV data size comparison means 82.
If there is not enough free disk space to additionally record the V data, the process is terminated. If there is enough free space, the A based on the information about the additional PG acquired by the additional PG information acquisition means.
The additional writing process performed by the V data reading means 24 and the PG information additional writing means 27 and thereafter is the same as the procedure described in the first embodiment.

As described above, according to the seventh embodiment, the PG
By performing the duplication after confirming the remaining capacity of the disk before performing the duplication, it is possible to shorten the processing time without performing unnecessary duplication processing.

(Embodiment 8) FIG. 9 is a block diagram showing a configuration of an AV data copying apparatus according to Embodiment 8 of the present invention.

In FIG. 9, reference numeral 11 denotes an original AV data management information file recorded on the original disk, reference numeral 21 denotes an AV data management information file reading means for reading the original AV data management information file, and reference numeral 201 denotes a memory. Read AV loaded on
22 is additional recording PGID setting means for setting the ID of the PG to be added, 202 is additional PGID information indicating the PG to be added, and 23 is the I
A write-once PG information obtaining means for obtaining information of a PG to be additionally written based on D, and 203 is an additional write-on AV indicating an ID of AV stream data necessary for reproducing the PG to be additionally written
Data ID information 15 is an original AV data file recorded on the original disc,
Reference numeral 24 denotes AV data reading means for reading an original AV data file, 204 denotes read AV data read on a memory, 16 denotes an additional recording destination AV data file in which AV data already exists, and 25 denotes an additional recording destination AV data file. AV data appending means for appending AV data to the disc, and 205 is a write A to be written on the disc.
V data, 18 is a post-recording AV data file written on the disc to which data is to be recorded, 206 is additional recording PG information indicating information of a PG to be additionally recorded, and 12 is already recorded PG information.
An additional data destination AV data management information file having information;
Reference numeral 91 denotes an A for reading the additional destination AV data management information file.
V data management information file reading means;
Reference numeral 27 denotes additional destination AV data management information read into the memory, and reference numeral 27 denotes PG information as additional destination AV data management information 901.
Is added PG information adding means, and 208 is post-PG added AV data management information after the PG information is added,
Reference numeral 28 denotes address information correction means for correcting a management address shifted by the additional writing of the PG, 209 denotes address correction AV data management information after correcting the address, and 29 denotes AV data management information in the disk to which the data is to be added. An AV data management information file writing means for writing information, reference numeral 210 denotes write AV data management information to be written to a disc, and reference numeral 14 denotes a post-additional AV data management information file written to a write destination disk. is there.

Next, the operation of the AV data copying apparatus according to the eighth embodiment configured as described above will be described with reference to FIG.

As a process of additionally writing AV data by the AV data adding means 25, a process of adding AV data to an additional recording destination AV data file 16 already existing as an AV data file, and adding PG information to the PG information adding means 27. As a process of performing, the AV data management information file 12 already read as an AV data management information file having PG information
This is processing for additionally writing PG information, and the other processing is the same as the procedure described in the first embodiment.

As described above, according to the eighth embodiment, data already exists on the output destination disk, an arbitrary PG on the original disk is selected, and only the AV data necessary for reproducing the PG is selected. Can be added to the output destination disk.

(Embodiment 9) FIG. 9 used in Embodiment 8 is a block diagram showing a configuration of an AV data duplication apparatus according to Embodiment 9 of the present invention, and FIG.
The description will be made assuming that FIG. 3 used in FIG.

The processing procedure in the PG information additional recording means 27 is the same as the processing procedure described in the second embodiment, and the recording destination AV data management information file 12 is already stored in the recording destination disk.
And the additional destination AV data file 16, and the procedure for additionally writing PG information and AV data to each of them is the same as the procedure described in the eighth embodiment.

As described above, according to the ninth embodiment, data already exists on the output destination disk, and the C
The configuration of the cell is analyzed, and even when the cell is composed of a plurality of cells, it is possible to correctly add data to the output destination disk.

(Embodiment 10) Embodiment 1 of the present invention
As a block diagram showing the configuration of the AV data duplication apparatus according to No. 0, FIG. 9 used in Embodiment 8 is combined with FIG. 4 used in Embodiment 3 and described.

The processing procedure in the PG information additional recording means 27 is the same as the processing procedure described in the third embodiment, and the recording destination AV data management information file 12 is already stored in the recording destination disk.
And the additional destination AV data file 16, and the procedure for additionally writing PG information and AV data to each of them is the same as the procedure described in the eighth embodiment.

As described above, according to the tenth embodiment, data already exists on the output destination disk, the structure of the Cell of the PG to be copied is analyzed, and the Cell information includes the marker information indicating the time information of the scene. In this case, it is possible to correctly add data to the output destination disk.

(Embodiment 11) Embodiment 1 of the present invention
1 will be described as a block diagram showing the configuration of the AV data duplication apparatus according to Embodiment 1 as a combination of FIG. 9 used in Embodiment 8 with FIG. 5 used in Embodiment 4.

The processing procedure in the PG information additional recording means 27 is the same as the processing procedure described in the fourth embodiment, and the recording destination AV data management information file 12 is already stored in the recording destination disk.
And the additional destination AV data file 16, and the procedure for additionally writing PG information and AV data to each of them is the same as the procedure described in the eighth embodiment.

As described above, according to the eleventh embodiment, the position information of the representative image set in the PG to be copied, which already has data on the output destination disk, is analyzed, and the representative image of the copied PG is analyzed. Can be corrected and added to the output destination disk.

(Embodiment 12) Embodiment 1 of the present invention
2 will be described as a block diagram showing the configuration of the AV data copying apparatus according to the second embodiment, in which FIG. 9 used in the eighth embodiment is combined with FIG. 6 used in the fifth embodiment.

The processing procedure in the PG information additional recording means 27 is the same as the processing procedure described in the fifth embodiment, and the recording destination AV data management information file 12 is already stored in the recording destination disk.
And the additional destination AV data file 16, and the procedure for additionally writing PG information and AV data to each of them is the same as the procedure described in the eighth embodiment.

As described above, according to the twelfth embodiment, the data already exists on the output destination disk, and the ITEM_T
EXT information is analyzed, and ITEM_TEX of the copied PG
After the T information is added, it is possible to correct the reference to the ITEM_TEXT information and add the T information to the output destination disk.

(Embodiment 13) Embodiment 1 of the present invention
As a block diagram showing the configuration of the AV data duplication apparatus according to the third embodiment, FIG. 9 used in the eighth embodiment will be described in combination with FIG. 7 used in the sixth embodiment.

The procedure leading to the additional recording PG information acquisition means 23 and the subsequent procedures are the same as the processing procedure described in the sixth embodiment, and the additional recording destination AV data management information file 12 and the additional recording destination AV The procedure for additionally writing PG information and AV data to each of the data files 16 is the same as the procedure described in the eighth embodiment.

As described above, according to the thirteenth embodiment, data already exists in the output destination disk, and by repeatedly adding PGs, all PGs in the original disk are put together and the output destination disk Can be added.

(Embodiment 14) Embodiment 1 of the present invention
As a block diagram showing the configuration of the AV data copying apparatus according to the fourth embodiment, a description will be given as a combination of FIG. 9 used in the eighth embodiment and FIG. 8 used in the seventh embodiment.

The procedure leading to the additional recording PG information acquiring means 23 and the subsequent procedures are the same as the processing procedure described in the seventh embodiment, and the additional recording destination AV data management information file 12 and the additional recording destination AV are already recorded on the recording destination disk. The procedure for additionally writing PG information and AV data to each of the data files 16 is the same as the procedure described in the eighth embodiment.

As described above, according to the fourteenth embodiment, data is already stored in the output destination disk, and the additional recording is performed after confirming the remaining capacity of the disk before copying the PG. In addition, it is possible to shorten the processing time without performing useless duplication processing.

[0108]

According to the AV data duplicating apparatus according to the present invention, only the necessary AV data on the original disc is selected and additionally recorded, so that the capacity and time of the disc required for duplication can be reduced. If data exists on the output destination disk, AV data can be additionally recorded while leaving the previous data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of processing of an AV data duplication device according to a first embodiment of the present invention;

FIG. 2 is a block diagram showing a configuration of an AV data duplication device according to Embodiment 1 of the present invention.

FIG. 3 is a block diagram showing a configuration of an AV data duplication device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of an AV data duplication device according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of an AV data duplication device according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of an AV data duplication device according to a fifth embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of an AV data duplication device according to a sixth embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of an AV data duplication device according to a seventh embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of an AV data duplication device according to an eighth embodiment of the present invention.

FIG. 10 is a block diagram showing the data configuration of the entire disk targeted by the present invention;

FIG. 11 is a block diagram showing a data configuration of a PG and other management units targeted by the present invention.

And FIG. 12 is a block diagram showing an outline of processing of an AV data copying apparatus according to a conventional technique.

FIG. 13 is a block diagram showing a configuration of an AV data copying apparatus according to a conventional technique.

[Explanation of symbols]

 11 Original AV data management information file 11a AV data management information file after duplication 12 Addition destination AV data management information file 13 AV data management information appending means 14 AV data management information file after additional writing 15 Original AV data file 15a AV data file after duplication 16 Additional recording destination AV data file 17 AV data additional recording means 18 AV data file after additional recording 21 AV data management information file reading means 22 Additional recording PGID setting means 22a Additional recording PGID setting means (ID = 1) 22b Additional recording PGID setting means (ID = ID + 1) Reference Signs List 23 Additional PG information acquisition means 24 AV data reading means 25 AV data additional means 26 PG-free AV data management information creation means 27 PG information additional means 28 Address information correction means 29 AV data tube Information file writing means 31 Additional writing cell information obtaining means 32 AV data attribute information writing means 33 Cell information writing means 34 PG information management section correcting means 41 Marker information writing means 51 Representative image position correcting means 61 Additional writing ITEM_TEXT information obtaining means 62 ITEM_TEXT information Additional recording means 71 PGID comparing means 81 Disk remaining capacity obtaining means 82 Writing AV data size comparing means 91 AV data management information file reading means 201 Reading AV data management information 202 Additional writing PGID information 202a Additional writing PGID information (ID = 1) 202b Additional writing PGID information (ID update) 203 Additional AV data ID information 204 Read AV data 205 Write AV data 206 Additional PG information 207 PG-less AV data management information 208 PG Recorded AV data management information 209 Address corrected AV data management information 210 Write AV data management information 301 Additional AV data attribute information 302 Additional cell list information 303 Cell additional PG information 401 Marker additional cell information 501 Additional cell information 502 PG representative Image position information 601 Additional ITEM_TEXT information 602 Additional ITEM_TXT_ID information 801 Write AV data size 802 Disk remaining capacity size 901 Additional recording destination AV data management information 1001 AV data management information file configuration 1002 AV data file configuration 1003 AV data attribute link information 1004 AV data Stream link information 1005 PG information and other data management unit configuration 1006 Cell attribute information 1007 Cell attribute information and Over mosquito management information 1008 ITEM_TEXT information 1009 ITEM_TEXT link information

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/781 G11B 27/02 K 5/92 F term (Reference) 5B065 BA04 CA40 EA33 ZA06 5C053 FA14 FA15 FA23 GB05 GB09 JA22 JA24 5D110 AA12 AA26 AA28 CA05 CA06 CA07 CA08 CB04 CL02 DA04 DA11 DA15 DB02 DC01 DC11 DD13

Claims (14)

[Claims] An A for duplicating data composed of AV data and AV data management information for managing the AV data.
A V-data duplication device, which is an AV data management information file reading means for reading an original AV data management information file, a write-once PG ID setting means for setting an ID of a PG to be copied, and a write-once for obtaining information of a PG to be copied PG information acquisition means, AV data reading means for reading AV data required for reproducing the PG to be copied, AV data recording means for appending the read AV data to the output destination disk, and PG information. No AV
PG-free AV data management information creating means for creating data management information, PG information adding means for newly adding PG information to be added to the AV data management information, and correcting deviation of address information managed by adding PG An AV data duplicating apparatus comprising: an address information correcting unit for writing data; and an AV data management information file writing unit for writing AV data management information to an output destination disk. 2. A write-once cell, wherein the PG information write-on means obtains all Cell information constituting PG information to be additionally written.
Information obtaining means, AV data attribute information adding means for additionally writing attribute information of the AV data referred to by the Cell information to the AV data management information, and Cell information adding means for additionally writing the Cell information constituting the PG information to the AV data management information 2. A PG information management unit correction unit for additionally writing new PG information composed of Cell information added by the Cell information addition unit and correcting the PG information management unit. AV data duplication device. 3. The method according to claim 1, wherein the additional write cell information obtaining means is a cell.
Marker information adding means for acquiring marker information when marker information holding time information indicating the position of each scene as a marker is added to the information, and adding marker information to the Cell information as necessary; C with
3. The AV data copying apparatus according to claim 2, further comprising: a cell information appending unit that appends the cell information to the AV data management information. 4. The system according to claim 1, wherein said cell information additional recording means includes an additional Ce.
11 is added to the AV data management information, and the added Cell information is held as a list. When the PG information management unit correction means has the representative image position information indicating the representative scene of the PG, the representative image position information 4. A representative image position correcting means for correcting a representative image position of a PG to be additionally recorded by referring to a list of acquired and additionally recorded Cell information as necessary.
AV data duplication device according to the above. 5. When a PG to be added has ITEM_TEXT information describing information such as a program genre or description, the additional writing I for acquiring the ITEM_TEXT information.
TEM_TEXT information acquisition means, and IT for adding ITEM_TEXT information to AV data management information as needed
The PG information management unit correction unit includes an EM_TEXT information additional recording unit.
5. The AV data copying apparatus according to claim 2, further comprising a function of correcting link information to information. 6. An additional write PG setting means sequentially adds P to all PGs included in the AV data management information from 1 in order to additionally write.
The number of G is set, and the additional PG information acquisition means acquires the PG information of the designated number, further adds the PG information to the AV data management information to which the PG is added, and adds the number of the added PG and the PG of the PG. If the total number is compared and the PG number exceeds the total number of PGs, the processing is terminated. If not, the PG number is incremented by 1 and the PG number to be added is set.
6. The AV data copying apparatus according to claim 1, further comprising setting means. 7. An additional recording PG information acquiring unit, wherein an additional recording
Means for acquiring the size of the data in advance and acquiring the remaining capacity of the disk to which data is to be added;
A write AV data size comparing means for comparing the remaining disk capacity with the size of the AV data, terminating the processing when the remaining disk capacity is not sufficient, and continuing the PG additional recording processing when the remaining capacity is sufficient is provided. 7. The AV data duplication device according to claim 1, wherein: 8. An AV data duplicating apparatus for additionally duplicating data composed of AV data and AV data management information for managing the AV data on an additional recording destination disk, comprising: an original AV data management information file; Means for reading an AV data management information file for reading the PG, additional PG ID setting means for setting the ID of the PG to be additionally recorded, additional PG information acquiring means for acquiring the information of the PG to be additionally recorded, and reproduction of the PG to be additionally recorded. AV data reading means for reading the AV data, AV data writing means for additionally writing the read AV data on the additional recording destination disk, and AV data reading the AV data management information file recorded on the additional recording destination disk Management information file reading means, and a PG for newly adding PG information to be added to the AV data management information The information recording apparatus further includes: an information recording unit; an address information correction unit configured to correct a deviation of address information managed by appending the PG; An AV data duplication device characterized by the above-mentioned. 9. A write-once Cell, wherein the PG information write-on means obtains all Cell information constituting the PG information to be additionally written.
Information obtaining means, AV data attribute information adding means for additionally writing attribute information of the AV data referred to by the Cell information to the AV data management information, and Cell information adding means for additionally writing the Cell information constituting the PG information to the AV data management information 9. The PG information management unit correction means for correcting the PG information management unit by additionally writing new PG information composed of the Cell information added by the Cell information addition means. AV data duplication device. 10. A method according to claim 1, wherein said additional cell information obtaining means is a cell.
marker information adding means for acquiring marker information when marker information holding time information indicating the position of each scene as a marker is added to the l information, and additionally adding the marker information to the Cell information as necessary; Cell that adds Cell information with a marker to AV data management information
10. The AV data duplicating apparatus according to claim 9, further comprising information adding means. 11. The method according to claim 1, wherein the cell information additional recording means is configured to add a C
The cell information is added to the AV data management information, the added cell information is held as a list, and when the PG information management unit correction means has the representative image position information indicating the representative scene of the PG, the representative image position information is used. 11. A representative image position correcting means for correcting a representative image position of a PG to be additionally recorded by referring to a list of acquired and additionally recorded Cell information as necessary. AV data duplication device. 12. When the PG to be added has ITEM_TEXT information describing information such as a genre and a description, the additional writing ITEM_T for acquiring the ITEM_TEXT information
EXT information acquisition means, and ITEM_TE for adding ITEM_TEXT information to AV data management information as needed
XT information additional recording means, and the PG information management section correction means has a function of correcting link information to the ITEM_TEXT information of the added PG based on ID information indicating the position of the added ITEM_TEXT information. The AV data duplication device according to claim 9, wherein: 13. The additional PG setting means sets PG numbers in order from 1 to additionally write all PGs included in the AV data management information, and the additional PG information acquiring means sets PG information of the designated number. AV with PG added first
The data management information is further added, and the added PG number is compared with the total number of PGs. If the PG number exceeds the total number of PGs, the process is terminated. Addition P which sets the number of PG to be added and increased by 1
And G setting means.
2. The AV data duplication device according to 2. 14. An additional PG information acquisition means, wherein the additional A
V data size is obtained in advance, and the remaining disk capacity obtaining means for obtaining the remaining capacity of the recording destination disk is compared with the remaining disk capacity and the size of the AV data. If the remaining disk capacity is not sufficient, processing is performed. 14. The AV data copying apparatus according to claim 8, further comprising: a write AV data size comparing unit that terminates the process and continues the PG appending process when there is enough.