WO2004112026A1 - 情報処理装置および方法、プログラム、並びに記録媒体 - Google Patents
情報処理装置および方法、プログラム、並びに記録媒体 Download PDFInfo
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- WO2004112026A1 WO2004112026A1 PCT/JP2004/008290 JP2004008290W WO2004112026A1 WO 2004112026 A1 WO2004112026 A1 WO 2004112026A1 JP 2004008290 W JP2004008290 W JP 2004008290W WO 2004112026 A1 WO2004112026 A1 WO 2004112026A1
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- G11B2220/2575—DVD-RAMs
Definitions
- the present invention relates to an information processing apparatus and method, a program, and a recording medium, and in particular, to an information processing apparatus and method, a program, and a recording medium that enable, for example, recording and reproduction processing to be performed more easily.
- material data such as image data and audio data obtained by imaging and recording have been recorded on tape devices such as video tapes, which are recording media. Accordingly, information has been digitized, and discs such as DVDs (digital versatile discs) have been used as recording media.
- the material data is managed as a file by a file system such as UDF (Universal Disk Format). Therefore, for example, when playing back material data, the playback device uses the path (hereinafter referred to as an absolute path) from the root directory and the file name of the file of the material data to record the file on the recording medium. Search from body, read out and play.
- a file system such as UDF (Universal Disk Format).
- the directory of the second file is used. If you change the name of the second file, you will need to update the absolute path name of the second file in the first file to match the change.
- the information processing device reads the first file and the second file recorded on the optical disk and records the first file and the second file on a hard disk incorporated in the information processing device, the first file recorded on the hard disk
- the absolute path name of the second file is different from the absolute path name on the optical disc, unless the absolute path name described in the first file is updated, You cannot specify and refer to the second file.
- the first file refers to the second file by specifying a path name (hereinafter, referred to as a relative path) and a file name based on the position of the first file, and furthermore, If the information processing device records the first file and the second file on the hard disk so as to maintain the relative path, the first file refers to the second file However, if you move the second file to a different directory, for example, you will need to update the first file as well.
- a path name hereinafter, referred to as a relative path
- UMID Unique Material IDenti bomb
- a table of the correspondence between the path name and file name of each file and the UMID assigned to each file is prepared on the optical disk or hard disk, and the specification by UMID is specified by the path name and file name. Should be converted to By doing so, the information processing device can easily specify the file using the UMID regardless of the directory structure.
- the UMID is an identifier for globally and uniquely identifying AV materials and the like, even if it is a basic UMID consisting of basic information, the data amount is 32 bytes, and user information and the like are also stored.
- the data size of the added extended UMID is as large as 64 bytes, which is very large as an ID. Therefore, if material data is specified using the UMID, there is a problem that not only does the entire data amount increase, but also the load on the process of specifying the material data in the playback processing and recording processing increases.
- the present invention has been made in view of such circumstances, and has been made in order to improve the convenience of a recording medium, such as making it easier to perform recording processing and reproduction processing. Is what you do. Disclosure of the invention
- An information processing apparatus includes: a first identifier for identifying management data for associating a first identifier capable of identifying data irrespective of an area with information relating to data; and a first identifier that is smaller than the first identifier.
- a second creating means for creating a second identifier which is composed of a data amount and can identify data in the storage area of the recording medium, and manages the second identifier created by the second creating means. It is characterized by comprising additional means for adding to information and relating to information on data, and recording means for recording, on a recording medium, management information to which the second identifier has been added by the additional means.
- the data may include at least one of image data, audio data, and metadata added to the image data.
- the information on the data may include information on a directory path name and a file name of the data.
- the first identifier may be composed of 64 bytes, and the second identifier may be composed of 20 bits.
- the second identifier can be composed of a first part indicating a type of data and a second part indicating a serial number of the second identifier.
- Search means for searching a maximum value of the value of the second part from the plurality of second identifiers recorded on the recording medium is further provided, wherein the second creation means is searched by the search means. Record on recording medium based on maximum value
- the second identifier can be created so as not to overlap with the plurality of second identifiers that have been set.
- the information processing apparatus may further include a reproducing unit that reads and reproduces data recorded on the recording medium.
- the information processing apparatus further includes: a reading unit that reads the management information recorded by the recording unit; and a holding unit that holds the management information read by the reading unit.
- the reproducing unit is read by the reading unit and held by the holding unit.
- the data to be reproduced can be read out from the recording medium and reproduced based on the management information set.
- a first identification step capable of identifying data irrespective of an area
- a first creation step of creating management information for associating information about data and a first identifier
- the program according to the present invention comprises: a first identifier for identifying data regardless of an area; a first creation step for creating management information for associating information on data; and a data amount smaller than the first identifier. And a second creation step of creating a second identifier capable of identifying data in the storage area of the recording medium, and the second identifier created by the processing of the second creation step as management information. An additional step of adding and relating the information about the data, and the processing of the additional step allows the second identifier to be obtained.
- a recording control step for controlling recording of the added management information on a recording medium is realized by a computer.
- the recording medium of the present invention includes a first identifier capable of identifying data regardless of the area and a data amount smaller than the first identifier, and can identify data in the storage area of the recording medium. Both the second identifier and the second identifier record management information associated with the information about the event.
- management information is created in which a first identifier capable of identifying a data regardless of an area is associated with information about the data, A second identifier that has a smaller amount of data than the first identifier and that can identify data in the storage area of the recording medium is created, the created second identifier is added to the management information, and the data Management information that is associated with the information regarding the second and the second identifier is recorded on the recording medium.
- FIG. 1 is a diagram showing a configuration example of a recording / reproducing apparatus to which the present invention is applied.
- FIG. 2 is a block diagram showing a detailed configuration example of an information holding unit in FIG.
- FIG. 3 is a block diagram showing a detailed configuration example of a reproduction control unit in FIG.
- FIG. 4 is a block diagram showing a detailed configuration example of a recording control unit in FIG.
- FIG. 5 is a functional block diagram showing the relationship between the processes performed by the units shown in FIGS. 2 to 4.
- FIG. 6 is a flowchart for explaining the disk format processing.
- FIG. 7 is a diagram showing an example of an XML description of an index file.
- FIG. 8 is a diagram showing an example of the XML description of the index file, following FIG.
- FIG. 9 is a diagram that follows the example of FIG. 8 and shows an example of the XML description of the index file.
- FIG. 10 is a diagram showing an example of the XML description of the index file, which is a continuation of FIG. 9;
- FIG. 11 is a diagram showing an example of an XML description of a disc information file.
- FIG. 12 is a diagram showing an example of a directory structure in the disk of FIG. .
- FIG. 13 is a diagram showing a more detailed configuration example of the directory structure shown in FIG.
- FIG. 14 is a diagram showing a more detailed configuration example of the directory structure shown in FIG.
- FIG. 15 is a flowchart for explaining the disc insertion process.
- FIG. 16 is a flowchart illustrating the clip adding process.
- FIG. 17 is a diagram showing an example of an XML description of a clip information file.
- FIG. 18 is a diagram following FIG. 17 showing an example of an XML description of a clip information file.
- FIG. 19 is a flowchart illustrating the edit list adding process.
- FIG. 20 is a diagram showing an example of an XML description of an edit list file.
- FIG. 21 is a flowchart for explaining a tape-like reproduction process.
- FIG. 22 is a flow chart for explaining the tape-like reproduction process, which is subsequent to FIG. 21.
- FIG. 23 is a flowchart for explaining the edit list designation reproduction process.
- FIG. 24 is a flowchart for explaining the edit list designated reproduction process, which is subsequent to FIG. 23.
- FIG. 25 is a flowchart for explaining the clip designation reproduction process.
- FIG. 26 is a flowchart illustrating the clip designation reproduction process, which is subsequent to FIG.
- FIG. 27 is a flowchart for explaining the disk information file update processing.
- FIG. 28 is a flowchart, following FIG. 27, for explaining the disk information file updating process.
- FIG. 29 is a block diagram showing a configuration example of a playback device to which the present invention has been applied.
- FIG. 30 is a block diagram showing a configuration example of an embodiment of a computer to which the present invention is applied.
- An information processing device for example, a disk drive 3) for managing data (for example, an image data file 22 2 in FIG. 13) recorded on a recording medium (for example, a disk 32 in FIG. 1).
- a first identifier for example, a UMID described in the sixth line in FIG. 7 capable of identifying the data regardless of the area, and information about the data (
- the management information for example, the index file 20 in FIG. 12
- first creating means for example, an index file creating unit 71 in FIG.
- the second creation means for example, the disc ID described in the sixth line in FIG. 7 (for example, the disc ID generation unit 91 in FIG. 4) and the second creation method described above Means for adding the second identifier created by the means to the management information and associating the information with information on the data (for example, the index file of FIG. 4 for executing the processing of step S57 of FIG. 16)
- a management unit 72) and a recording unit for example, an index file recording control unit 73 in FIG. 4) for recording the management information to which the second identifier has been added by the adding unit on the recording medium.
- An information processing device characterized by having
- the data may be image data (for example, image data file 22 of FIG. 13 or low-resolution data file 2 31), audio data (for example, audio data file 2 of FIG. 13). 23 to 230), and at least one of metadata (for example, the frame metadata file 2 33 in FIG. 13) added to the image data.
- image data for example, image data file 22 of FIG. 13 or low-resolution data file 2 31
- audio data for example, audio data file 2 of FIG. 13
- 23 to 230
- metadata for example, the frame metadata file 2 33 in FIG. 13
- the information on the data includes the directory path name (for example, the description on the fourth line in FIG. 7) and the file name (for example, the description on the seventh line in FIG. 7) of the data.
- the information processing apparatus according to claim 1, wherein the information processing apparatus includes:
- the second identifier is a first part indicating the type of the data (for example, in the case of an in-disk ID “C0001” described in the sixth line of FIG. 7, a part “C” ) And a second portion indicating the serial number of the second identifier (for example, the ID “C0001” in the disc described in the sixth line of FIG. 7).
- the information processing apparatus is configured by:
- the apparatus further comprising a reproducing unit (for example, a reproduction control unit 15 in FIG. 1) for reading and reproducing the data recorded on the recording medium.
- a reproducing unit for example, a reproduction control unit 15 in FIG. 1
- Information processing device for example, a reproduction control unit 15 in FIG. 1.
- a reading means for example, an index file reading unit 61 in FIG. 3 for reading the management information recorded by the recording means, and the management read by the reading means.
- the information processing apparatus further includes holding means for holding information (for example, an index file holding unit 51 in FIG. 2), wherein the reproducing means is read by the reading means and is based on the management information held in the holding means.
- the reproducing means is read by the reading means and is based on the management information held in the holding means.
- An information processing device for example, a disc 32 that manages data (for example, an image data file 22 2 in FIG. 13) recorded on a recording medium (for example, a disc 32 in FIG. 1).
- 1 is an information processing method of the recording / reproducing apparatus 1), wherein a first identifier (for example, a UMID described in the sixth line of FIG. 7) capable of identifying the data regardless of an area;
- the day Management information that correlates information about evening (for example, the directory path described on the fourth line in FIG. 7 and the file name described on the seventh line in FIG. 7) (for example, FIG. 12)
- a first creation step eg, step S15 in FIG.
- a second identifier for example, an in-disk ID described in line 6 in FIG. 7 that can identify the data in the second step (for example, step S 5 in FIG. 16). 6) and an additional step of adding the second identifier created by the processing of the second creation step to the management information and associating the management information with information on the data (for example, step S57 in FIG. 16). ) And the additional A recording control step (for example, step S58 in FIG. 16) of controlling the recording of the management information to which the second identifier has been added by the processing of the step on the recording medium.
- An information processing method comprising:
- a computer eg, an image data file 22 2 shown in FIG. 13
- data eg, an image data file 22 2 shown in FIG. 13
- a recording medium eg, disk 32 shown in FIG. 1
- the first identifier that can identify the data regardless of the area for example, the first identifier described in the sixth line in FIG. 7
- management information for example, a directory path described in the fourth line of FIG. 7 and a file name described in the seventh line of FIG. 7) relating to the data (FIG. 7).
- it is composed of a first creation step (for example, step S15 in FIG. 6) for creating an index file 204) in FIG.
- a second identifier that can identify the data for example, A second creation step (eg, step S56 in FIG. 1.6) of creating the second identifier and the second identifier created by the processing of the second creation step.
- An additional step for example, step S57 in FIG. 16 of adding the second identifier to the management information to which the second identifier is added by the processing of the adding step.
- a recording control step for example, step S58 in FIG. 16 for controlling the recording on the recording medium.
- [Claims 11] A recording in which data (for example, an image data file 22 2 in FIG. 13) ′ reproduced by an information processing device (for example, the recording / reproducing device 1 in FIG. 1) is recorded.
- a medium for example, disk 32 of FIG. 1
- a first identifier for example, UMID described in the sixth line of FIG. 7
- a second identifier for example, an ID in a disc described in the sixth line of FIG. 7
- Both are associated with information about the data (for example, the directory path described in line 4 of FIG. 7 and the file name described in line 7 of FIG. 7).
- Information for example, index file 2 in Figure 12) 0 4).
- FIG. 1 is a block diagram showing a configuration example of a recording / reproducing apparatus to which the present invention is applied.
- a recording / reproducing apparatus 1 records material data such as image data and audio data on a disc 32 mounted on a drive 26, and reproduces material data recorded on the disc 32.
- the CPU (Central Process Unit) 11 of the recording / reproducing apparatus 1 executes various processes according to a program stored in a ROM (Read Only Memory) 12.
- a RAM (Random Access Memory) 13 stores data and programs necessary for the CPU 11 to execute various processes as appropriate.
- the information storage unit 14 is a storage unit that is configured by a semiconductor memory or the like and temporarily stores information, and is information read from the disk 32 and related to material data recorded on the disk 32 and the like. Is controlled by the playback control unit 15 and the recording control unit 16 to provide the stored information and acquire new information.
- the playback control unit 15 controls the drive 26 via the bus 17 and the input / output interface 20 and performs processing for controlling the reading of various information from the disc 32 mounted on the drive 26.
- the reproduction control unit 15 reads out management information of data recorded on the disc 32 and executes a control process for supplying the information to the information holding unit 14. Further, the reproduction control unit 15 executes a reproduction process of image data, audio data, and the like read from the disc 32.
- the recording control unit 16 controls the drive 26 via the bus 17 and the input / output interface 20 and controls the writing of various information to the disc 32 mounted on the drive 26. I do.
- the recording control unit 16 executes a control process for recording the data held in the information holding unit 14 on the disk 32.
- the CPU 11, the ROM 12, the RAM 13, the information holding unit 14, the reproduction control unit 15, and the recording control unit 16 are mutually connected via a bus 17.
- the bus 17 is also connected to the input / output interface 20
- the input / output interface 20 is composed of a keyboard and a mouse.
- the input unit 21 is connected, and the signal input to the input unit 21 is output to the CPU 11. Further, the input / output interface 20 is also connected to an output unit 22 composed of a display device and the like.
- the input / output interface 20 has a storage unit 23 composed of a hard disk, EEPR0M (Electronically Erasable and Programmable Read Only Memory), and other devices via a wired or wireless network.
- a communication unit 24 for communicating data with the device is also connected.
- the drive 25 reads a program or data necessary for executing the program from a removable medium 31 composed of a recording medium such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, or writes data or a program. It is used when slapping. ,
- the drive 26 reads material data such as image data and audio data from the disc 32 mounted on the drive 26, and records material data on the disc 32 mounted on the drive 26.
- the disc 32 has a minimum mark length of 0.14 m and a track pitch of 0.32 m, for example, using a blue-violet laser with a numerical aperture (NA) of 0.85 and a wavelength of 405 nm.
- NA numerical aperture
- the disc 32 may be another recording medium, such as a DVD-RAM (Digital Versatile Disc-Random Access Memory), a DVD-R (DVD-Recordable), and a DVD-R W (DVD- Various optical disks such as Rewritable), DVD + R (DVD + Recordable), DVD + RW (DVD + Rewritable), CD-R (Compact Disc—Recordable), or CD-RW (CD-Rewritable) may be used.
- FIG. 2 is a block diagram showing a detailed configuration example of an information holding unit 14 in FIG. In FIG.
- the information storage unit 14 includes an index file storage unit 51 that stores an index file that manages information recorded on the disk 32, and image data and an image file that are recorded on the disk 32. It has a disc information file holding unit 52 for holding a disc information file including a reproduction history of audio data.
- the information holding unit 14 can also hold information other than those described above.
- FIG. 3 is a block diagram showing a detailed configuration example of the reproduction control unit 15 of FIG.
- a playback control unit 15 reads an index file from a disc 32 attached to a drive 26 and executes an index file for executing processing to be held in an index file holding unit 51 in FIG.
- Disk information file reading unit 6 2 for reading disk information file from disk 32 attached to reading unit 6 1 and drive 26 and storing it in disk information file holding unit 52 in FIG.
- a disk information file management unit 63 that performs processing for managing the disk information file read from the disk 32 and stored in the disk information file storage unit 52 .
- the playback control unit 15 controls the drive 26, reads out material data such as image data and audio data from the disc 32 mounted on the drive 26, executes processing for playback, and reads an index file.
- the data other than the material data is read out by using the disc information file reading section 62 or the disc information file reading section 62, or the read and retained data is managed by using the disc information file management section 63 or the like.
- FIG. 4 is a block diagram showing a detailed configuration example of the recording control unit 16 of FIG.
- a recording control unit 16 includes an index file creating unit 71 that performs processing for creating an index file, and an index file management unit that manages the index files held in the index file holding unit 51.
- Index file storage unit 51 Index file recording control unit that records the index file stored in 1 on the disk 32 mounted on the drive 26 6 3 Creates a disk information file, and performs disk information Disk information file creation unit 81 to be stored in the file storage unit 52, and disk information to execute processing for recording the disk information file stored in the disk information file storage unit 52 to the disk 32.
- the recording control unit 16 controls the drive 26, executes processing for recording material data such as image data and audio data on the disc 32 mounted on the drive 26, and generates an index file creating unit 7 1 , An index file is created, an index file management unit 72 manages an index file held in an index file holding unit 51, and an index file is held in an index file holding unit 51. Executes the process of recording the index file on the disc 32 via the drive 26, generates the ID on the disc managed in the index file, and writes the disc ID on the disc 32 using the ID on the disc. Search for recorded files.
- FIG. 5 shows the main relationships among the functions of the respective units corresponding to the main processes executed in the recording / reproducing apparatus 1 in FIG.
- the index processing unit 101 that performs processing related to the index file includes an index file holding unit 51, an index file reading unit 61, an index file creation unit 71, an index file management unit 72, and an index file recording control. It is composed of part 73. Also, the index file management unit 72 may perform processing in cooperation with the in-disk ID generation unit 91 and the search unit 92.
- the index file creation unit 71 1 manages the files recorded on the disk 3 2, and the index file Create The created index file is supplied to the index file recording control unit 73 via the index file holding unit 51, and is recorded on the disc 32 mounted on the drive 26.
- the index file reading section 61 reads the index file from the disc 32 and stores it in the index file holding section 51. .
- the index file management section 72 executes the indexing according to the update. Manages and updates index files held in index file storage unit 51. At that time, the search unit 92 is included in the index file. The maximum value of .1D in the disk assigned to the clip or edit list to be searched is searched, and the disk ID generation unit 91 generates the disk ID based on the maximum value, and the index file management unit 7 2 Updates the index file using the in-disk ID generated by the in-disk ID generation unit 91.
- the index file management unit 72 causes the in-disk ID generation unit 91 to generate and acquire an in-disk ID corresponding to the clip or the edit list to be added.
- the in-disk ID generation unit 91 determines the value of the in-disk ID based on the maximum value of the in-disk ID searched by the search unit 92, and generates the in-disk ID of that value.
- the index file management unit 72 associates the obtained disc ID with the absolute path name and file name of the clip or edit list to be added, and the UMID (Unique Material IDentifer). , Assign a disc ID to a clip or edit list. Further, the index file management unit 72 adds information on the clip or edit list to which the disc ID is assigned to the index file.
- the index file recording control unit 73 reads the updated index file from the index file holding unit 51 and records it on the disk 32.
- the clip is not only a unit of the number of times of the imaging process, but also a unit indicating a time from the start of the imaging process to the end of the imaging process, or a length of various data obtained by the imaging process. Unit indicating the amount of data and the amount of data of various data obtained by the imaging process. Or show. In addition, the clip may also indicate the aggregate of the various data.
- the disk information processing unit 111 that performs processing related to the disk information file is a disk information file storage unit 52, a disk information file reading unit 62, a disk information file creation unit 81, and a disk information unit. It comprises a file management unit 63 and a disk information file recording control unit 82.
- the disc information file creating unit 81 sends the image data and audio data recorded on the disc 32 to the disc information file creating unit 81.
- the created disc information file is supplied to the disc information file recording control section 82 via the disc information file holding section 52, and is recorded on the disc 32 mounted on the drive 26. .
- the disc information file reading unit 62 reads the disc information file from the disc 32, and reads the disc information. The file is held in the file holding unit 52.
- the playback control unit 15 executes the disc information stored in the disc information file holding unit 52.
- the playback of the source file is started from the position based on the playback history of the Yon file.
- the playback control unit 15 Use the ID in the disc described in the information file to obtain the material data.
- the playback control unit 15 refers to the index file, obtains the absolute path name and file name corresponding to the ID in the disc, and accesses the material data based on the information.
- the disc information file management section 63 updates the playback history of the disc information file held in the disc information file holding section 52.
- the disc information file recording control unit 82 reads the updated disc information file from the disc information file holding unit 52, and records it on the disc 32.
- each unit corresponding to each instruction performs processing in cooperation with each other, whereby the instructed operation is performed.
- the absolute path name and file name of the clip or edit list, the disk ID associated with the UMID, and the clip or edit list are assigned.
- the in-disk ID is a (unique) ID that can be used only in the disk 32, and the number of data that is assumed to be assigned to the in-disk ID is much smaller than that of the UMID. Therefore, the amount of data can be much smaller than the in-disk ID. Therefore, the recording / reproducing apparatus 1 can specify the file by using the ID in the disc only by referring to the index file, so that not only the entire data amount is reduced as compared with the case of UMI D, but also In addition, it is possible to reduce the load of the process of specifying the material data in the reproduction process and the recording process.
- the index file is associated with the absolute path name and file name of the clip or edit list, UMID, and ID on the disc.
- the recording / reproducing apparatus 1 By referring to the index file recorded in 2, the UMID information of the clip edit list can be acquired, and the clip edit list can be managed using the UMID.
- the recording / reproducing apparatus 1 can refer to these clips and edit lists using the ID in the disc within the disc 32 and refer to the UMID outside the disc 32. Therefore, the versatility of the reference method of the clip edit list can be maintained. ,
- step S11 the recording control unit 16 executes a UDF (Un iversal Disk Format) format process on the disc 32 mounted on the drive 26, and performs a logical format process using the UDF. .
- step S12 creates a ProAV directory under the root directory based on the UDF in the disk 32, and records the ProAV directory on the disk 32.
- step S12 creates a clip directory under the ProAV directory to store files such as material data such as image data and audio data, and information about the material data, and record them on the disc 32.
- An edit list root directory containing editing results (editing information) obtained by non-destructively editing a clip which is a file group of material data and the like stored under the clip root directory, is created under the ProAV directory and the disk 3 2 To record.
- step S15 the index file creation unit 71 of the recording control unit 16 uses XML (extensible Markup Language) to create a file name (including an absolute path) of a clip or edit list, a UMID, In addition, an index file for centrally managing the in-disk ID is created, and the index file is stored in the index file storage unit 51. Then, the index file recording control unit 73 records the index file held in the index / file holding unit 51 on the disc 32, and proceeds to step S16.
- XML extensible Markup Language
- step S16 the disc information file creating unit 81 of the recording control unit 16 creates a disc information file that refers to the clip edit list using the ID in the disc using XML. Then, the disc information file holding unit 52 holds the disc information. Then, the disc information file recording control unit 82 records the disc information file held in the disc information file holding unit 52 on the disc 32, and ends the disc format processing.
- FIG. 7 to 10 show specific examples of description of an index file for centrally managing a file name (including an absolute path name), a UMID, and a disk ID of a clip edit list.
- the index file is a file for managing the information of the file recorded on the disc 32.
- the index file is a file under the ProAV directory created in step S12 in FIG. Manages information on files. The information of these files is described between the start tag on the second line in FIG. 7 and the end tag on the 19th line in FIG.
- Clips stored under the clip directory are described as clip tables between the start tag on the fourth line in FIG. 7 and the end tag on the 24th line in FIG. .
- FIG. 7 to FIG. 9 in this case, four clips are stored under the clip root directory, and the first clip is shown from the fifth line in FIG. 23
- the description is given in lines 3 and 3, and the second clip is described between lines 24 in Fig. 7 and line 13 in Fig. 8. Is described from the 14th line of FIG. 8 to the 3rd line of FIG. 9, and the fourth clip is described from the 4th line of FIG. 9 to the 23rd line of FIG. It is described between eyes.
- lines 6 and 7 in FIG. 7 describe information about a clip information file that manages information about each file of the first clip.
- the ID in the disk is indicated by 16 hexadecimal digits, and the total 20 bits of the 4-bit clip part "C” and the 16-bit 4-digit serial number part "0001" It is composed. That is, the ID of the clip in the disc is, for example, “C0001” , “C0002", “C0003" ⁇ 'are created so that the value of the serial number part increases by “1” each time, and assigned to each clip so that it does not overlap with the IDs in other discs.
- the ID in the disc may be any ID, and may not be the one described above. Therefore, the amount of data in the disk ID can be any size, but if it is too large, the load becomes large as in UMI D. Conversely, if the amount of data is too small, the number of assigned clips may be too small and may be the same as the on-disk ID of other clips.
- each digit of the UMID is indicated by a hexadecimal number, where the UMID is a 32 byte basic UMID and the basic UMID is 3 2 There is a 64 byte extended UMID to which byte user information (source pack) is added In the index file, a 32 byte basic UMID is used, and in FIG. It shows a part of the basic UMID (22 bytes (44 characters) with 10 bytes omitted from the universal label part.) Of course, even if an extended UMID of 64 bytes is used for the UMID, Good.
- the clip information file also contains information on the method and procedure for playing back the material data contained in the first clip.
- the recording / reproducing device 1 can play this first clip.
- the recording / reproducing apparatus 1 since the UMID is assigned to the first clip, by specifying and executing the UMID described above, the recording / reproducing apparatus 1 One clip can be played.
- Lines 8 and 9 in FIG. 7, and lines 10 to 17 in FIG. 7 are described.
- information on audio data of four channels is described for each channel.
- Lines 18 and 19 in Fig. 7 contain sub-streams that are low-resolution material data consisting of image data and audio data corresponding to the above-mentioned image data and audio data.
- Lines 20 and 21 in FIG. 7 describe information on clip meta data, which is a video clip added to the clip.
- Line 22 in the figure describes information about the frame metadata added to the image data of this clip in frame units.
- a file name and a UMID are described for each of these files, and specification by the file name and the UMID is possible. Although the description is omitted, the file name (including the absolute path name), the disc ID, and the UMID of the second clip to the fourth clip are similar to the case of the first clip described above. Are described in association with each other.
- the file name (including the absolute path name) of the clip information file of each clip recorded on the disc 32 is associated with the disc ID and UMID. ing. Therefore, for clips recorded on the disc 32, the recording / reproducing apparatus 1 can specify the clip information file using the ID in the disc having a small amount of data, and in the case of UMID The material data of this clip can be read and played with a smaller load compared to.
- the recording / reproducing apparatus 1 can read and reproduce the material data of this clip.
- the edit list stored under the edit list root directory is placed between the start tag on line 25 in FIG. 9 and the end tag on line 15 in FIG. It is described as a table. As shown in FIGS. 7 to 10, in this case, four edit lists are stored under the edit list root directory. For the first edit list, 26 in FIG. It is described from the first line to the first line in Fig. 10, and the second edit list is described from the second line in Fig. 10 to the fifth line in Fig. 10. The third edit list is described between the 6th line in FIG. 1Q and the 9th line in FIG. 10 and the fourth edit list Is described between the 10th line in FIG. 10 and the 14th line in FIG.
- lines 26 and 27 of FIG. 9 describe information of an edit list file that manages information about each file of the first edit list.
- the in-disk ID consists of “E” indicating the edit list and “0001” indicating the 4-digit serial number.
- the in-disk ID of the clip is created so that the value of the serial number portion increases by “1”, for example, “E0001”, “E0002”, “E0003”, and so on. And are assigned so that they do not overlap with other in-disk IDs.
- the ID in the disc may be any ID, and may not be the one described above. Therefore, the data amount of the ID in the disk may be any size, but if it is too large, the load increases as in the case of the UMID. Conversely, if the amount of data is too small, the number of edit lists assigned may be too small and may overlap with the IDs of other edit lists on the disk.
- file " E0001E 01.
- SMI "" on line 27 is Indicates the file name of the edit list file. Since the edit list file also contains information on the playback method and procedure of the material data to be edited in the edit list, specify the absolute path on line 25 and the file name on line 27. By executing, the recording / reproducing apparatus 1 can reproduce the first edit list.
- the recording / reproducing device 1 can reproduce the first edit list.
- the recording / reproducing apparatus 1 You can play the first edit list.
- the second edit list to the fourth edit list are similar to the case of the first edit list described above. ID and UMID are described in association with each other.
- the index file information on the edit list recorded on the disc 32 is tabulated and recorded as an edit list table.
- an index file described in XML as shown in FIGS. 7 to 1.0 is generated and recorded on the disk 32. Since the clip and the edit list are not recorded on the disc 32 at the time when the process of step S15 in FIG. 6 is performed, the clip shown in FIG. 7 to FIG. Edit list information does not exist.
- the file name (including the absolute path name) of the edit list file of each edit list recorded on the disk 32 is associated with the disk ID and UMID. I have. Therefore, for the edit list recorded on the disc 32, the recording / reproducing apparatus 1 can specify the edit list file by using the ID in the disc having a small data amount and comparing with the UMID. With a small load, the source data of this edit list can be read and played.
- the recording / reproducing apparatus 1 can read and reproduce the material data corresponding to the edit list.
- the recording / reproducing apparatus 1 creates an index file that centrally manages the file name (including the absolute path name), the UMID, and the ID in the disc of the clip or the edit list, thereby enabling the clip ⁇ While maintaining the versatility of the edit list reference method, It is possible to reduce the amount of data and reduce the load on the process of specifying material data in the playback and recording processes.
- FIG. 11 shows a specific description example of a disc information file that refers to clips and edit lists using the above-described disc ID.
- the numbers at the beginning of each line are added for convenience of explanation and are not part of the XML description.
- the disc information file is a file for managing the playback history of material data such as clip edit list recorded in the disc 32.
- Such a reproduction history is described between the start tag on the second line and the end tag on the 11th line in FIG.
- the fourth line in FIG. 11 describes that clip-specific playback, which is playback in units of clips, has been performed, and the end position (frame number of image data) of the playback is described.
- the clip with the disc ID “C00003” has stopped at the position (frame) of “00: 30: 12: 23”.
- “00: 30: 30: 2: 23” is a time code (FTC: File Time Code) for each clip, and the first frame (first frame;) of the clip is set to “00:00:00”. : 00 ”. That is, in the case of Fig. 11, the clip "C00003" is stopped at the 30th, 12th, and 23rd frames from the first frame.
- the fifth line in FIG. 11 describes that the edit list specified playback, which is playback in edit list units, was performed.
- the raw end position (frame number) is described. That is, in this case, it is indicated that the clip with the disc ID “E 00 01” has stopped at the position (frame) of “0: 0: 0: 0: 0: 15”.
- the edit list is a result of editing a clip
- the edit list may correspond to a plurality of clips. In such a case, in the edit list designated playback, (a part of) the plurality of clips is played. Is done.
- the FTC recorded as the playback history is the time code in which the edited result is a single clip.
- the first frame in the edited result (the clip of the first played clip) Frames are counted with the first frame being “00: 00: 00: 00: 00”. Therefore, even if the clip to be played changes midway, the FTC value of the playback history does not return to "00: 00: 00: 00".
- the sixth line in Fig. 11 shows that tape-like playback was performed, in which all the clips recorded on the disc 32 were played in order as if they were recorded on a tape device.
- the playback end position (frame number of the image data) is described.
- the clip with the ID “C 000 3” in the disc is stopped at the position (frame) of “0: 0: 2: 2: 3: 1”.
- the FTC recorded as the playback history is the time code of each clip. Even if the clip to be played changes midway, the FTC value in the playback history will be "00:00:00: 00 "does not return.
- line 7 in Fig. 11 describes the edit list specified playback history information using the disc ID, and lines 8 and 9 respectively indicate clip specified playback. History information is described using the disk ID.
- the disk information file contains the disk
- the disc information file may record any number of playback histories.
- the reproduction histories of the fourth to ninth lines are arranged in chronological order from the ninth line. That is, the history on the ninth line is the oldest, the history on the fourth line is the newest, and when a new history is registered, the oldest history is deleted.
- this playback history is designed so that there are no multiple histories (the same type of history) in which the same clip or edit list has been played back by the same playback method.
- the six playback histories described above are always made so that the playback method or the played clip or edit list (ID in the disc) is different, and the same type of history as the currently registered history is recorded. When newly registered, the old history is deleted.
- step S16 in FIG. 6 a disc information file described in XML as shown in FIG. 11 is generated and recorded on the disc 32.
- the recording / playback apparatus 1 shown in FIG. 1 performs playback based on the playback history.
- the overall data amount can be reduced, and the load of the process of specifying the material data in the reproduction process and the recording process can be reduced.
- the reproduction history of the disc information file is created in an empty state. Disks created in this way Using the disc information, the playback history that specifies the clip edit list using the ID in the disc is stored on the disc 32, and this playback history is used during playback to enable the recording and playback of FIG.
- the raw device 1 interrupts the reproduction process, for example, even if the disk 32 is removed from the drive 26 once and then remounted, the entire data amount is reduced, and the material data is specified in the reproduction process and the recording process The processing load can be reduced.
- the disc information file (playback history) of the disc 32 includes only the playback history of the clips and edit lists recorded on the disc 32, the file is not specified by the UMID in the disc information file. .
- the data recorded on the disk 32 is managed by a file system such as UDF.
- the file system is not limited to the UDF, but may be any file system compatible with the recording / reproducing device 1, such as, for example, IS09660 (International Organization for Standardization 9660).
- the file system may be FAT (File Allocation Tables), NTFS (New Technology File System), HFS (Hierarchical File System), or UFS (Unix (Registered trademark) File System) or the like. Further, a dedicated file system may be used.
- the data recorded on the disk 32 is managed by a directory structure and files as shown in FIGS.
- a root directory (ROOT) 201 contains information on material data such as image data and audio data, and an edit list showing an editing result of the material data, etc., in a lower directory.
- a PR0AV directory 202 is provided in the bird.
- the PR0AV directory 202 contains titles and comments for all the material data recorded on the disc 32, as well as representative images that are representative frames of all the image data recorded on the disc 32.
- Management information for managing all the clips and edit lists recorded on the disc metadata file (DI SCMETA.XML) 203 which is a file containing information such as the path of the corresponding image data.
- Index file (INDEX. 204, and index file (INDEX. BUP)) that contains information such as the file name of the clip or edit list (including the absolute path), the UMID, and the ID in the disc.
- the index file 205 is a copy of the index file 204.
- the PR0AV directory 202 is metadata for the entire data recorded on the disc 32, and includes, for example, information such as a playback history that refers to the clip edit list using the ID in the disc.
- a disk information file (DI SC INFO. XML) 206 and a disk information file (DI SC INF 0. BUP) 207 are provided.
- disk information The Yon file 2007 is a copy of the disk information file 206. The reliability is improved by preparing two files.
- the PR0AV directory 202 includes a clip root directory (CLPR) 208 in which clip data is provided in a lower directory, and a lower directory in which the edit list data is stored.
- An Edit List Root Directory (EDTR) 209 is provided in the system.
- the data of the clips recorded on the disc 32 is managed in different directories for each clip. For example, in the case of FIG. Evening is managed by being divided into three directories, a clip directory (C0001) 211, a clip directory (C0002) 212, and a clip directory (C0003) 211.
- each clip of the first clip recorded on the disc 32 is managed as a file in a lower directory of the clip directory 211
- each clip of the second clip recorded on the disc 32 is The data is managed as files in the lower directory of the clip directory 212
- the data of the third clip recorded on the disc 32 is managed as the file in the lower directory of the clip directory 212.
- edit lists recorded on the disc 32 are managed in different directories for each editing process. For example, as shown in FIG. If there are four edit lists, edit list directory (E0001) 2 1 4, edit list directory (E0002) 2 1 5, Edit It is divided into four directories, namely, a list directory (E0003) 216 and an editlist directory (E0004) 217.
- the edit list showing the first editing result of the clip recorded on the disc 32 is managed as a file in a directory below the edit list directory 214
- the edit list showing the second editing result is The edit list that is managed as a file in the lower directory of the edit list directory 215 and the edit result indicating the third edit result is managed as a file in the lower directory of the edit list directory 216, and the edit result of the fourth edit is displayed.
- the edit list shown is managed as a file in a directory below the edit list directory 217.
- each file of the clip initially recorded on the disc 32 is stored in a file as shown in FIG. It is provided and managed as a file.
- the clip directory 211 contains a clip information file (CO 001 C01.SMI) 221, which is a file for managing this clip, and image data, which is a file containing the image data of this clip.
- 30 Low-resolution file (C0001 S01.MXF), which is a file containing the sub-stream data of this clip.
- Clip that is the metadata that does not require real-time performance and corresponds to the material data of this clip.
- Clip metadata file (C0001M01.XML), which is a file that contains clip metadata.
- Frame data file (C0001 R01. BIM) 233 which is a file containing frame metadata that is metadata that requires real-time performance, and the frame structure of the image data file 222 (for example, MPEG Etc., a file such as a picture pointer file (C0001 I 01. PPF), which contains information on the compression format for each picture and information on the offset address from the beginning of the file, etc. It is.
- image data, low-resolution data, and frame metadata which require real-time processing during playback, are each managed as a single file, so that the read time does not increase. Has been done.
- audio data is required to be real-time during playback.
- Eight channels are prepared to support multiple channels of audio such as one channel, and each is managed as a different file. That is, although the description has been made so that the audio data is managed as eight files, the present invention is not limited to this.
- the number of files corresponding to the audio data may be seven or less, or nine or more.
- the image data, the low resolution data, and the frame metadata may be respectively managed as two or more files in some cases.
- the clip metadata that does not require real-time properties is managed as a file different from the frame metadata that requires real-time properties. This is to prevent unnecessary data from being read out during normal reproduction of image data and the like. By doing so, the processing time of the reproduction processing and the load required for the processing are reduced. Can be reduced.
- the clip file file 23 is described in XML format for versatility, but the frame metadata file 23 3 is used for processing time and load required for processing. It is a BIM (Binary format for MPEG-7 data) file compiled from an XML file in order to reduce
- the example of the structure of the files in the clip directory 211 shown in FIG. 13 can be applied to all the clip directories corresponding to each clip recorded on the disc 32. That is, the example of the file configuration shown in FIG. 13 can be applied to the other clip directories 2 12 and 2 13 shown in FIG. 12, and the description thereof is omitted.
- each file included in the clip directory corresponding to one clip has been described.
- the configuration of the file is not limited to the above example, and may be any configuration.
- the directory below the edit list directory 215 provided in the edit list root directory 209 described above contains information on the second editing result of each clip recorded on the disc 32.
- the data of an edit list is provided and managed as a file as shown in Fig. 14.
- the edit list directory 215 contains an edit list file (E0002E01.SMI) 241, which is a file that manages the edited result (edit list).
- the edit list clip file data file 242 contains the clip metadata of the clip used for editing based on the editing result (the file exists in a lower directory of the clip list directory 208).
- This is a file that includes new clip metadata generated based on the clip metadata file.
- portions corresponding to the edited essence data are extracted from the clip metadata included in the clip metadata file 2 32 of FIG. 13, and the edited material is used by using them.
- New clip metadata with one clip as data is reconstructed and managed as an edit list clip file.
- new clip metadata with the edited essence data as one clip is added to the edited material, and the clip metadata is used as one edit list clip metadata. It is managed as a file. Therefore, this edit list clip metadata file is generated for each edit.
- the edit list clip metadata file 242 is described in an XML format in order to provide versatility.
- the configuration example of the file of the edit list directory 2 15 shown in FIG. 14 can be applied to all edit lists (edited results). That is, the example of the file structure shown in FIG. 14 can be applied to the other edit list directories 2 14, 2 16, and 2 17 shown in FIG. The description is omitted.
- each file included in the edit list directory corresponding to one editing operation has been described.
- the configuration of the file is not limited to the above example, and may be any configuration.
- the index file is updated when the clip edit list recorded on the disc 32 is updated.
- the disc 32 is mounted on the drive 26 of the recording / reproducing apparatus 1 shown in FIG. 1 by a user or the like.
- the recording / reproducing apparatus 1 performs processing like a flowchart shown in FIG. 15 to convert the index file recorded on the disc 32 into an index file. Expand to the holder 51 and grasp the structure of the clip edit list and the like recorded on the disc 32.
- the index file reading unit 61 of the recording / reproducing apparatus 1 reads the index file from the disc 32 via the drive 26 in step S31.
- the index file is supplied to the index file storage unit 51 for storage.
- the disc information file reading unit 62 reads the disc information file from the disc 32 via the drive 26, and reads the disc information file.
- the file is held in the file holding unit 52.
- Each unit of the recording / reproducing device 1 that has read the disc information file ends the disc insertion process.
- the disc information file is prevented from being read during the disc insertion process, and each time the recording / reproducing apparatus 1 refers to or updates the disc information file, the disc information file reading unit 61 executes the above operation.
- the data may be read in the same manner as the processing in step S32.
- the index file is a file that centrally manages the file name (including the absolute path), UMID, and disc ID of the clip or edit list recorded on the disc 32, as well as the disc 3
- This file manages the information about the clip edit list recorded in 2. Therefore, the update of the index file is performed, for example, when a clip is added, updated, or deleted, or when an edit list is added, updated, or deleted.
- information on the ID of the disc in the index file is created when a clip is added and an edit list is added.In this section, information on the ID of the disc in the disc is newly created.
- the added clip processing will be described with reference to the flowchart of FIG. Description will be made with reference to FIGS. 17 and 18 as necessary.
- the recording control unit 16 of the recording / reproducing apparatus 1 proceeds to step S51 where the recording control unit 16 stores the clip under the clip directory of the disc 32.
- New clip Create a directory. At this time, set the clip directory name so that it does not overlap with the proud clip directory name.
- step S52 the recording control unit 16 creates a clip information file under the clip directory created in the processing in step S51.
- FIGS. 17 and 18 are diagrams showing specific examples of description of a clip information file described in XML.
- the numbers at the beginning of each line are added for convenience of explanation and are not part of the XML description.
- the clip information file is a file for managing information about other files existing in the same clip directory as the clip information file, and also describes a method for reproducing those files.
- the XML description of the clip information file is roughly divided into a header section enclosed by a header tag ( ⁇ head> ⁇ / head »and a body tag (ku body).
- the header part describes the information of the clip metadata files existing in the same clip directory
- the body part contains the information of the files other than the clip metadata file existing in the same clip directory. It is described along with the reproduction method.
- the information of the clip metadata file is described in lines 6 to 8 in FIG.
- Lines 16 to 18 in FIG. 17 describe the information of the image data file, and lines 19 to 21 in FIG.
- the information of the audio data file of channel 2 is described in lines 22 to 24 of FIG. 17, and the information of the audio data file of channel 2 is described in FIG.
- Lines 2 to 27 describe the information of the audio data file for channel 3.
- Lines 28 to 18 in FIG. 17 show the audio data of channel 4 in lines 1 to 18.
- the information of the data file is described.
- the second to fourth lines of FIG. 18 describe the information of the audio data file of channel 5, and the fifth line of FIG. 18 is described.
- Lines 7 to 7 describe the information of the audio data file of channel 6, and lines 8 to 10 in FIG.
- the information of the audio data file is described, and the information of the audio data file of channel 8 is described in the 11th to 13th lines in FIG.
- Lines 16 to 18 in FIG. 18 describe the information of the low resolution file, which is a sub-stream, and line 21 in FIG. The information of the evening file is described.
- line 17 in FIG. 17 describes rumid: 060A2B340101010501010D1 21300000 00123456789ABCDEF0123456789ABCDEF ”, and the image data is specified using the UMID.
- the 20th line describes “umi d: 060A2B34 0101010501010D1 21 3000000123456789ABCDEF0123456789ABCDEF0J, and the audio data of channel 1 is specified using UMID.
- r U mid 060A2B34010101050101010D1 21300000023456789A / OAV-
- the XML description of the clip information file describes information about other files existing in the same clip directory.
- the clip information file is accessed by designating a file such as image data and audio data using a basic UMID of 32 bytes (64 characters).
- step S53 the recording control unit 16 creates each file for each material data constituting the clip under the clip directory created in the process of step S51.
- the recording control unit 16 records the image data, audio data, and clip metadata as different files. .
- step S53 The recording control unit 16 that has completed the processing in step S53 advances the processing to step S54.
- step S54 the index file management unit 72 of the recording control unit 16 stores information on the clip corresponding to the clip added to the clip table of the index file held in the index file holding unit 51 (hereinafter referred to as “clip information”). , Clip elements).
- step S55 the search section 92 of the recording control section 16 searches for and acquires the maximum value of the serial number portion of the ID in the disc with reference to the clip table.
- the search section 92 sends the obtained ID of the disc.
- the maximum value of the number part is supplied to the in-disk ID generation unit 91, and the process proceeds to step S56.
- step S56 based on the maximum value of the serial number portion of the supplied disk ID, for example, the maximum value of the serial number portion is set to "1" based on the maximum value of the serial number portion of the supplied disk ID.
- the maximum value of the serial number portion is set to "1" based on the maximum value of the serial number portion of the supplied disk ID.
- step S57 the index file management unit 72 adds the newly created disc element to the clip element newly added to the clip table with respect to the index file held in the index file holding unit 51.
- the ID is added to the UMID and file name of the clip information file included in the clip element.
- step S58 the index file recording control section 73 overwrites the updated index file held in the index file holding section 51 with the existing index file on the disc 32 and records it. Yes (update).
- the index file recording control unit 73 that has updated the index file on the disc 32 ends the clip adding process.
- the index file recorded on the disc 32 is updated to add a new disc ID when a clip is added.
- a process of editing a clip recorded on the disc 32 without updating the original material data and creating an edit list as the editing information (hereinafter referred to as nondestructive editing) is performed.
- the recording control unit 16 of the recording / reproducing apparatus 1 sets the root directory of the disc 32 in step S111. Create a new edit list directory under. At this time, set the edit list directory name so that it does not overlap with the existing edit list directory name.
- step S112 the recording control unit 16 creates an edit list file under the edit list directory created in the processing of step S111.
- FIG. 20 is a diagram showing a specific description example of an edit list file described in XML.
- numbers at the beginning of each line are added for convenience of explanation, and are not part of the XML description.
- the edit list file is a file containing editing information of non-destructive editing of a clip, and also describes a method of reproducing the editing result.
- the XML description of the edit list file is roughly divided into a header section enclosed by a header tag ( ⁇ head> ⁇ / head ») and a header section enclosed by a body tag ( ⁇ body> ⁇ / body»).
- the header part is described from the third line to the tenth line in Fig. 22, and the body part is described from the first line to the 24th line. It is described on the line.
- the header section describes the information of the edit list metadata file that exists in the same edit list directory, and the body section describes the information of the edited result together with the playback method.
- FIG. 20 a parallel tag (between ⁇ par> ⁇ / par » which is described in the first and second lines and indicates that the enclosed clips are reproduced in order, is shown in FIG. Lines 4 through 17 describe information about the first clip, and lines 19 through 22 describe information about the second clip. These two clips It is shown that has been edited to be played continuously.
- the information of the first clip (clip information file) and the information of the second clip (clip information file) are respectively specified using a universal ID, UMID. ing. That is, in the edit list, the first clip is described as ⁇ umid: 060A2B340 101010501010D1213000000FEDCBA9876543210FEDCBA9876543210J, as shown on the 15th line in FIG. 20, and the first clip is specified by UMID. Is shown.
- the second clip to be played next is described as r U mid: 060A2B340101010501010D1213000000EDCBA9876 543210FEDCBA9876543210FJ, as shown on line 20 in FIG. 20.
- the second clip is specified by the UM ID. It is shown that it is.
- the XML description of the edit list file which may be taken out of the disc 32 and used, contains the clip Non-destructive editing information is described, and each clip used for editing is specified using a UMID.
- step S113 the recording control unit 16 constructs an edit list below the edit list directory created in the processing of step S111, for example, an edit list Create each file other than the edit list file, such as a metadata file.
- step S114 the index file management unit 72 of the recording control unit 16 stores the edit list corresponding to the added edit list in the index file edit list table held in the index file holding unit 51.
- Add list information hereinafter referred to as edit list element).
- the search unit 92 refers to the edit list table of the index file held in the index file holding unit 51 in step S115, and the search unit 92 has already added the edit list to the edit list.
- the maximum value of the assigned in-disk ID is searched, and when the maximum value is obtained, the maximum value is supplied to the in-disk ID generation unit 91.
- the in-disk ID generator 91 supplied with the maximum value of the serial number portion of the disk ID adds, for example, a value “1” to the maximum value of the serial number portion based on the maximum value, and adds the value “1” to the existing disk.
- a new in-disk ID is created so as not to overlap with the ID, and supplied to the index file management unit 72.
- the index file management unit 72 adds the edit list element added to the edit list table of the index file held in the index file holding unit 51 in step S117. Adds the supplied new in-disk ID and associates it with the UMID and file name of the edit list file included in the edit list element.
- the index file recording control unit 73 sets the step S 1 In 18, the updated index file held in the index file holding unit 51 is recorded over the existing index file on the disk 32 (updated).
- the index file recording control unit 73 that has updated the index file of the disk 32 ends the edit list adding process.
- the index file recorded on the disk 32 is added to the new in-disk ID when the edit list is added. Be updated.
- the disc information file is a file that manages the playback history of clips and edit lists recorded on the disc 32 using the in-disk ID. Therefore, the disc information file is updated when, for example, a reproduction process such as tape-like reproduction, designated list reproduction, or clip specified reproduction is completed.
- a reproduction process such as tape-like reproduction, designated list reproduction, or clip specified reproduction is completed.
- the disk information management section 63 of the playback control section 15 executes the disc information file storage section 52 of the information storage section 14 in step S201. Refers to the disc information file held in, and determines whether or not the history of tape-like playback exists in the playback history. If the disc information file has not been read when the disc is inserted, in step S201, the disc information file reading section 62 reads the tape-like file from the disc information file on the disc 32 in tape-like manner. The disc information management unit 63 reads the history of tape-like playback based on whether the disc information file reading unit 62 was able to read the history of tape-like playback. It is determined whether or not exists.
- step S202 the playback control unit 15 sets the specified frame of the clip specified by using the in-disc ID in the playback history as a playback start frame based on the clip table. Read from disk 32. At that time, the playback control unit 15 refers to the index file held in the index file holding unit 51, accesses the clip corresponding to the disc ID in the playback history, and reads the specified frame. . The playback control unit 15 that has read the playback start frame proceeds to step S204.
- step S201 If it is determined in step S201 that there is no tape-like reproduction history, the disk information file management unit 63 advances the process to step S203.
- step S203 the playback control unit 15 sets the first frame of the first clip as the playback start frame on the disc 3 2 based on the clip table of the index file held in the index file holding unit 51. And the process proceeds to step S204.
- the first clip is the clip indicated to be played first in the XML description of the index file as shown in Figs. 7 to 10, and the first frame is The first frame to be played back, specified in the XML description of the index file. Therefore, the first frame is not always the first frame of clip material data. For example, if the XML description of the index file indicates that playback should start from a frame in the middle of the clip, that frame is the first frame.
- step S204 the reproduction control unit 15 determines whether a reproduction start position change instruction has been received. For example, when the user operates the input unit 21 to input an instruction to change the reproduction start position, the reproduction control unit 15 determines that the instruction to change the reproduction start position has been received, and proceeds to step S205. Then, based on the index file clip table held in the index file holding section 51, the specified frame of the clip specified by using the ID in the disc is set as the playback start frame on the disc 3 Read from step 2 and proceed to step S206. In step S204, a playback start position change instruction is received. If it is determined that they are not attached, the reproduction control unit 15 skips the processing of step S205 and proceeds to step S206.
- step S206 the reproduction control unit 15 determines whether to terminate the tape-like reproduction process. If it is determined that the tape-like playback process is not to be ended, the playback control unit 15 proceeds to step S207 and determines whether or not a playback start instruction has been received. When it is determined that the reproduction start instruction has not been received, the reproduction control unit 15 returns the process to step S204 and repeats the subsequent processes.
- the reproduction control unit 15 waits until a reproduction start instruction is received or the tape-like reproduction processing ends, while repeating the processing of steps S204 to S207. If it is determined in step S207 that the playback start instruction has been received, the playback control unit 15 determines in step S208 that the clip file of the index file held in the index file holding unit 51 has been deleted. Start playback from the playback start frame based on the table. When the reproduction is started, the reproduction control unit 15 advances the processing to step S231 in FIG.
- step S206 of FIG. 21 If it is determined in step S206 of FIG. 21 that the tape-like playback process is to be terminated based on a user's instruction or the like, the disc information file management unit 63 of the playback control unit 15 The process advances to step S209 to update the reproduction history of the disc information file. At this time, if the disc information file is read from the disc 32 at the time of disc insertion processing or the like, and is held in the disc information file holding section 52, the disc information file management section 63 sets the disk information format. Updates the playback history of the disc information file stored in the application file storage unit 52.
- the disk information file management unit 63 sets the disk information file recording control unit 8
- the playback history (disc information file) to be updated to 2 is supplied, and the disc information file recording control unit 82 updates the disc information file recorded on the disc 32 using the supplied playback history. You. The details of updating the disk information file will be described later with reference to the flowcharts of FIGS. 27 and 28.
- the reproduction control unit 15 executes an end process in step S210, and ends the tape-like reproduction process.
- the playback control unit 15 determines whether or not the playback stop instruction has been received in step S231 of FIG. judge. If it is determined that the playback stop instruction has not been received and the playback processing is to be continued, the playback control unit 15 proceeds to step S2 32 to determine whether or not the playback of the current clip has ended. If it is determined that the reproduction has not been completed, the reproduction control unit 15 returns the processing to step S231 and continues the reproduction processing.
- step S232 If it is determined in step S232 that the playback of the current clip has ended, the playback control unit 15 advances the process to step S233, as shown in FIGS. 7 to 10. Based on the XML description of the index file, it is determined whether there is a clip to be played next. In the XML description of the index file, if it is determined that the clip that has finished playing is not the last clip but still continues, The unit 15 advances the process to step S2334, and refers to the attribute information of the clip directory of the clip, and determines whether or not the clip can be reproduced.
- the reproduction control unit 15 returns the process to step S2 33, and repeats the subsequent processes. Further, the next clip is processed.
- step S 234 If the attribute of the clip directory is, for example, “readable” in step S 234, and it is determined that the clip can be played, the playback control unit 15 proceeds to step S 235, and proceeds to step S 235.
- Holder 51 Refers to the clip table of the index file held in # 1, and plays the specified clip based on the information.
- the playback control unit 15 that has started playing the clip returns the process to step S231 and repeats the subsequent processes.
- the reproduction control unit 15 reproduces all the clips in the order described in the index file while repeating the processing of Steps S231 to S235.
- step S233 when the playback of the last clip is completed in the XML description of the index file and it is determined that the next clip does not exist, the playback control unit 15 proceeds to step S233.
- the playback is stopped, and in step S237, the first frame of the first clip is set as the playback start frame based on the index file clip table held in the index file holding unit 51.
- the process returns to step S206 of FIG. 21 and the subsequent processes are repeated. That is, when the tape-like playback has been performed to the end (when the playback has been completed to the end), the playback control unit stops the playback processing and sets the first frame in the XML description of the index file as a playback start frame in the next playback process. Set the first frame of the clip.
- step S231 If it is determined in step S231 that a playback stop instruction has been received from a user or the like during playback, the playback control unit 15 stops playback in step S238, and proceeds to step S239.
- the stopped frame is set as the playback start frame in the next playback process. After the setting of the reproduction start frame is completed, the reproduction control unit 15 returns the processing to step S206 of FIG. 21 and repeats the subsequent processing.
- the recording / reproducing apparatus 1 can record the playback history on the disc 32, and use the playback history in the next tape-like playback processing to start from the position where the previous playback was stopped. Tape-like playback can be resumed.
- FIG. 23 the edit list designation reproduction process executed when the edit list is designated and reproduced will be described with reference to the flowcharts of FIGS. 23 and 24.
- FIG. 23 the edit list designation reproduction process executed when the edit list is designated and reproduced will be described with reference to the flowcharts of FIGS. 23 and 24.
- the disc information management section 63 of the reproduction control section 15 executes the information holding section 1 in step S311 of FIG. Reference is made to the disc information file held in the disc information file holding section 52 of 4, and it is determined whether or not the playback history of the edit list instructed to be played exists in the playback history.
- the disc info The motion file reading unit 62 reads the playback history of the edit list instructed to be played from the disc information file on the disc 32, and the disc information management unit 63 reads the disc information file reading unit 6 2 determines whether or not the playback history includes the playback history of the edit list instructed to be played back, based on whether or not the playback history of the edit list has been read.
- step S311 in FIG. 23 If it is determined in step S311 in FIG. 23 that there is a playback history of the edit list for which playback has been instructed, the disc information file management unit 63 proceeds to step S312.
- step S312 the reproduction control unit 15 reads the frame specified in the reproduction history from the disk 32 as a reproduction start frame using the in-disk ID.
- the playback control unit 15 refers to the index file held in the index file holding unit 51, and edits the edit list corresponding to the disc ID of the playback history, that is, the edit list file. Get the file name (including path name). Then, based on the file name of the obtained edit list file, access the target edit list and read the specified frame.
- the reproduction control unit 15 that has read the reproduction start frame proceeds to step S314.
- step S311 If it is determined in step S311 that there is no playback history of the edit list for which playback has been instructed, the disc information file management section 63 proceeds to step S313.
- step S313 the playback control unit 15 starts playback of the first frame of the first clip based on the XML description of the edit list file. The data is read from the disk 32 as the first frame, and the process proceeds to step S314.
- the first clip is the clip specified to be played first in the XML description of the edit list file as shown in Fig. 20.
- the first frame is the edit list file.
- step S314 the reproduction control unit 15 determines whether a reproduction start position change instruction has been received. For example, when the user operates the input unit 21 to input an instruction to change the reproduction start position, the reproduction control unit 15 determines that the instruction to change the reproduction start position has been received, and proceeds to step S315. Then, based on the XML description of the edit list file, refer to the clip information file of the clip corresponding to the specified frame, read the specified frame from disk 32 as a playback start frame, and step S31. Proceed to step 6. If it is determined in step S314 that the reproduction start position change instruction has not been received, the reproduction control unit 15 skips the processing of step S315 and proceeds to step S316. .
- step S316 the reproduction control unit 15 determines whether to end the edit list designated reproduction process. If it is determined that the edit list designated playback processing is not to be ended, the playback control unit The process proceeds to 3 17 to determine whether a reproduction start instruction has been received. If it is determined that the reproduction start instruction has not been received, the reproduction control unit 15 returns the process to step S314 and repeats the subsequent processes. That is, the reproduction control unit 15 waits until a reproduction start instruction is received or the edit list designation reproduction processing ends, while repeating the processing of steps S314 to S317. If it is determined in step S317 that a playback start instruction has been received, the playback control unit 15 determines in step S318 the clip-in format based on the XML description of the edit list file. References the file and starts playback from the playback start frame according to the information in the clip information file. When the reproduction is started, the reproduction control unit 15 advances the process to step S 3 41 in FIG.
- the playback control unit 15 may refer to the clip table of the index file based on the XML description of the edit list file.
- Each clip element of the clip table of the index file basically describes the same information as the clip information file. , Can read and play clips.
- step S316 of FIG. 23 If it is determined in step S316 of FIG. 23 that the edit list designation reproduction processing is to be terminated based on a user instruction or the like, the disc information file management section 63 of the reproduction control section 15 The process advances to step S319 to update the playback history of the disc information file. At this time, if the disc information file is read from the disc 32 during the disc insertion process and is held in the disc information file holding unit 52, In this case, the disc information file management section 63 updates the reproduction history of the disc information file held in the disc information file holding section 52. If the disk information file has not been read from the disk 32 at the time of the disk insertion process and exists only on the disk 32, the disk information file management unit 63 sets the disk information file.
- the playback history (disc information file) to be updated is supplied to the file recording control unit 82, and the disc information file recording control unit 82 is recorded on the disc 32 using the supplied playback history. Update the existing disk information file. The details of the update of the disk information file will be described later with reference to the flowcharts of FIGS. 27 and 28.
- the reproduction control unit 15 executes an end process in step S320, and ends the edit list designated reproduction process.
- step S318 of FIG. 23 the playback control unit 15 determines whether or not a playback stop instruction has been received in step S314 of FIG. judge. If it is determined that the playback stop instruction has not been received and the playback processing is to be continued, the playback control unit 15 proceeds to step S3 42 to determine whether or not the playback of the current clip has ended. If it is determined that the reproduction has not been completed, the reproduction control unit 15 returns the processing to step S3341 and continues the reproduction processing.
- step S334 If it is determined in step S334 that the playback of the current clip has ended, the playback control unit 15 advances the process to step S334, and based on the XML description of the edit list file, Next, it is determined whether there is a clip to be reproduced. The clip that has finished playing is If it is determined that there is not the last clip but a continuation in the XML description of the cut list file, the playback control unit 15 proceeds to step S344 to change the attribute information of the clip directory of the clip. Then, it determines whether the clip can be played or not.
- step S344 If the attribute of the clip directory is, for example, “read prohibited” or the like and it is determined that reproduction is not possible, the reproduction control unit 15 returns the process to step S 3 43 without performing reproduction of the clip. By repeating the subsequent processing, the processing for the next clip is performed. If it is determined in step S344 that the attribute of the clip directory is, for example, "readable” and that playback is possible, the playback control unit 15 advances the processing to step S344 and proceeds to step S324. References the XML description of the file and plays the specified clip based on that description. The playback control 15 that has started the playback of the clip returns the process to step S 3 41 and repeats the subsequent processes.
- the reproduction control unit 15 reproduces the clips in the order based on the description of the edit list file while repeating the processing of Steps S341 to S345.
- the reproduction control unit 15 may refer to the clip table of the index file based on the XML description of the edit list file.
- Each clip element in the clip table of the index file basically describes the same information as in the clip information file. , Can read and play clips.
- step S3343 the playback of the last clip in the XML description of the edit list file ends, and the next clip does not exist. If it is determined that, the playback control unit 15 advances the processing to step S346, stops the playback, and in step S347, executes the first clip based on the XML description of the edit list file. Is read as the playback start frame, the process returns to step S316 in FIG. 23, and the subsequent processes are repeated.
- the playback control unit stops the playback process and sets the first frame of the first clip in the XML description of the edit list file as the playback start frame in the next playback process Set.
- step S 341 of FIG. 24 If it is determined in step S 341 of FIG. 24 that a playback stop instruction has been received from the user or the like during playback, the playback control unit 15 stops playback in step S 3 48, In S3449, the stopped frame is set as the playback start frame in the next playback process. After the setting of the reproduction start frame is completed, the reproduction control unit 15 returns the processing to step S3 16 in FIG. 23 and repeats the subsequent processing.
- the playback history can be recorded on the disc 32 at the time of edit list designation playback, and in the next edit list designation playback process, the playback history is used to start the edit list designation playback from the position where the previous playback was stopped. Can be resumed.
- the disc information management unit 63 of the reproduction control unit 15 25 In step S 3 71 in FIG. 5, the disc information file stored in the disc information file storage section 52 of the information storage section 14 is referred to, and reproduction is instructed in the reproduction history. It is determined whether or not there is a history of clip-designated playback of the selected clip. If the disc information file has not been read when the disc is inserted, in step S371, the disc information file reading unit 62 instructs reproduction from the disc information file on the disc 32.
- the disc information management unit 63 performs a process of reading the clip-designated playback history of the selected clip, and based on whether the disc information file reading unit 62 has read the clip-designated playback history. Then, it is determined whether or not the reproduction history includes the history of the clip designated reproduction of the clip for which reproduction has been instructed.
- step S371 in FIG. 25 If it is determined in step S371 in FIG. 25 that there is a clip-designated playback history of the clip whose playback has been instructed, the disc information file management unit 63 proceeds to step S378. Proceed with the process.
- step S372 the reproduction control unit 15 reads the frame specified in the reproduction history as the reproduction start frame from the disk 32 using the ID in the disk.
- the playback control unit 15 refers to the index file held in the index file holding unit 51, and determines the clip corresponding to the disc ID in the playback history, that is, the file name (path) of the clip information file. Including the first name). Then, based on the obtained clip information file name, the target clip is accessed and the specified frame is read.
- step S3784 If it is determined in step S371 that there is no history of clip-specific playback of the clip for which playback has been instructed, the disc information file management unit 63 proceeds to step S3773. Proceed. In step S373, the reproduction control unit 15 reads the first frame from the disc 32 as the reproduction start frame based on the XML description of the clip-in-formation file, and proceeds to step S375.
- the first clip is the first playback frame specified in the XML description of the clip information file as shown in Fig. 17 and Fig. 18. Therefore, the first frame is not necessarily the first frame of clip material data. For example, if the clip description file specifies in the XML description that playback should start from an intermediate frame, that frame is the first frame.
- step S3784 the reproduction control unit 15 determines whether a reproduction start position change instruction has been received. For example, when the user operates the input unit 21 to input an instruction to change the reproduction start position, the reproduction control unit 15 determines that the instruction to change the reproduction start position has been received, and proceeds to step S375. Then, based on the XML description of the clip information file, the specified frame is read from the disc 32 as a playback start frame, and the process proceeds to step S376. If it is determined in step S375 that the playback start position change instruction has not been received, the playback control unit 15 skips the processing of step S375 and proceeds to step S375. Proceed with the process.
- step S376 the playback control unit 15 determines whether to end the clip-designated playback process. Do not end the clip specified playback process. If it is determined that the reproduction is started, the reproduction control unit 15 advances the process to step S3777, and determines whether or not a reproduction start instruction is received. If it is determined that the reproduction start instruction has not been received, the reproduction control unit 15 returns the process to step S374, and repeats the subsequent processes.
- the reproduction control unit 15 waits until a reproduction start instruction is received or the clip-specified reproduction processing ends, while repeating the processing of steps S374 to S377. If it is determined in step S377 that a playback start instruction has been received, the playback control unit 15 determines in step S378 that the playback start frame has been started based on the XML description of the clip information file. Start playback. When the reproduction is started, the reproduction control unit 15 proceeds to step S401 in FIG.
- the reproduction control unit 15 may refer to the clip table of the index file.
- Each clip element in the clip table of the index file basically describes the same information as the clip information file. Even if the clip element of the clip table is referred to, the playback control unit 15 reads the clip. , Can be played.
- step S376 of FIG. 25 If it is determined in step S376 of FIG. 25 that the clip-specific playback processing is to be terminated based on a user instruction or the like, the disc information file management section 63 of the playback control section 15 Then, the process proceeds to step S379 to update the playback history of the disc information file.
- the disc information file management unit 63 information The playback history of the disc information file held in the message file holding section 52 is updated. If the disc information file is not read from the disc 32 at the time of the disc insertion process and is present only on the disc 32, the disc information file management unit 63 sets the disc information file to the disc information file.
- the playback history (disc information file) to be updated is supplied to the content file recording control unit 82, and the disc information file recording control unit 82 is recorded on the disc 32 using the supplied playback history. Update the existing disk information file. The details of the update of the disc information file will be described later with reference to the flowcharts of FIGS. 27 and 28.
- the reproduction control unit 15 executes an end process in step S380, and ends the clip designation reproduction process.
- step S378 of FIG. 25 the playback control unit 15 determines whether or not the playback stop instruction has been received in step S401 of FIG. judge. If it is determined that the playback stop instruction has not been received and the playback process is to be continued, the playback control unit 15 proceeds to step S402, determines whether or not the playback of the clip has ended, and ends. If it is determined that the reproduction has not been performed, the reproduction control unit 15 returns the processing to step S401 and continues the reproduction processing.
- step S402 If it is determined in step S402 that the reproduction of the clip has been completed, the reproduction control unit 15 advances the processing to step S403 to stop the reproduction, and in step S404, executes the clip information. Based on the XML description of the file, the first frame is used as the playback start frame The reading and processing are returned to step S376 in FIG. 29, and the subsequent processing is repeated.
- the playback control unit 15 stops the playback process and sets the first frame as the playback start frame in the next playback process based on the XML description of the clip information file. .
- step S401 of FIG. 26 If it is determined in step S401 of FIG. 26 that a playback stop instruction has been received from a user or the like during playback, the playback control unit 15 stops playback in step S405. In step S406, the stopped frame is set as the reproduction start frame in the next reproduction process. After the setting of the reproduction start frame is completed, the reproduction control unit 15 returns the processing to step S376 in FIG. 25 and repeats the subsequent processing.
- the playback history can be recorded on the disc 32 at the time of the designated clip playback, and in the next designated clip playback process, the playback history is used to resume the designated clip playback from the position where the previous playback was stopped. be able to.
- each unit of the recording / playback apparatus 1 executes a disc information file update process to update the playback history of the disc information file recorded on the disc 32.
- the disk information file update processing will be described with reference to FIGS. 27 and 28.
- the disc information file management section 63 firstly executes the playback of the playback control section 15 stopped in step S421 of FIG. 27. Determine whether the type is tape-like playback. If the disc information file has not been read when the disc is inserted, the disc information file reading unit 62 reads the disc information file on the disc 32 before the process of step S421. Read and hold in disk information file holding section 52.
- the disc information file management unit 63 uses the ID in the disc of the clip in which the tape-like playback has been stopped in step S422. A history of the current tape-like playback is created, and the process proceeds to step S 4 23.
- the disc information file management unit 63 refers to the playback history (current playback history) of the disc information file held in the disc information file holding unit 52, It is determined whether or not a tape-like reproduction history exists in the current reproduction history.
- step S424 If it is determined in step S424 that there is a tape-like playback history in the current playback history, the disc information file management unit 63 proceeds to step S424 and proceeds to the disc information file.
- the old tape-like playback history in the playback history of the disc information file held in the holding unit 52 is deleted, and the created new tape-like playback history is registered at the latest position in the playback history. For example, in the case of FIG. 11, the disk information file management unit 63 deletes the history of tape-like playback on the sixth line in FIG.
- step S424 moves the history on the fifth line to the sixth line, Move the history of the fourth line to the fifth line, and insert the newly created tape-like playback history in the fourth line (the latest position of the playback history), which is the top line of the playback history.
- the disk information file management unit 63 that has completed the processing in step S424 advances the processing to step S424.
- step S424 If it is determined in step S424 that there is no tape-like playback history in the current playback history, the disc information file management section 63 proceeds to step S425 to proceed to step S425. Deletes the oldest history of the disc information file's playback history stored in the storage unit 52, and registers the tape-like playback history newly created in step S422 at the latest position. I do. For example, assuming that the sixth line is not the history of tape-like playback in the XML description of FIG. 11, the disk information file management unit 63 deletes the history of the ninth line of FIG. The history of the 4th to 8th lines is moved down by 1 line and moved to the 5th to 9th lines, respectively. Insert the history of the newly created tape-like playback at The disk information file management unit 63 that has completed the processing in step S425 advances the processing to step S425.
- step S 4 21 If the playback control unit 15 determines in step S 4 21 that the type of playback stopped is not tape-like playback, the disc information file management unit 63 processes in step S 4 26 Proceed.
- step S426 the disc information file management unit 63 determines whether or not the type of reproduction stopped by the reproduction control unit 15 is edit list designation reproduction.
- step S 4 26 If it is determined in step S 4 26 that the playback is the edit list designated playback, the disc information file management unit 63 determines in step S 4 27 that the playback of the edit list whose playback has been stopped is stopped. A history of this edit list designated reproduction is created using the in-box ID, and the process proceeds to step S428.
- step S428, the disk information file management unit 63 refers to the playback history (current playback history) of the disc information file held in the disc information file holding unit 52, It is determined whether or not the current play history has an edit list specified play history corresponding to the same edit list as the edit list specified play history created this time.
- step S428 If it is determined in step S428 that the current playback history includes the edit list specified playback history corresponding to the same edit list as the edit list specified playback history created this time, the disc information.
- the operation file management unit 63 advances the process to step S429, and deletes the old edit list designated reproduction history in the reproduction history of the disk information file stored in the disk information file storage unit 52. Then, the new edit list designated playback history created in step S427 is registered at the latest position in the playback history. For example, in the case of FIG. 11, when the playback history of the edit list with the ID “E0004” in the disc is created, the disc information file management unit 63 sets the edit list on the seventh line of FIG.
- the disc information file management unit 63 which has completed the processing in step S429, advances the processing to step S451 in FIG. Also, in step S428 of FIG. 27, it was determined that there is no edit list designated playback history corresponding to the same edit list as the edit list designated playback history created this time in the current playback history. In this case, the disc information file management section 63 proceeds to step S430, and deletes the oldest history of the disc information file playback history stored in the disc information file storage section 52. Then, the history of the edit list designated reproduction newly created in step S427 is registered at the latest position. For example, in the case of FIG.
- the disc information file management unit 63 stores the disc ID in the playback history of FIG. There is no edit list specified history of "E 0003”, so the history of line 9 in Fig. 11 is deleted, and the history of lines 4 to 8 is moved down by one line each. Then, move to the fifth to ninth lines, and in the fourth line (the latest position in the playback history), which is the top line of the playback history, edit the newly created disk with the ID “E0003” in the disc.
- the disc information file management unit 63 which has completed the processing of step S430 to insert the history of the play list designated reproduction, advances the processing to step S451 of FIG. If the playback control unit 15 determines in step S 4 26 of FIG. 27 that the type of playback stopped is not the edit list designated playback, the disc information file management unit 63 The process proceeds to step S451 in FIG.
- step S451 of FIG. 28 the disc information file management unit 63 determines whether or not the type of playback stopped by the playback control unit 15 is clip-designated playback. If the disc information file management unit 63 determines in step S 45 1 that the playback is the clip specification playback, the disc information file management unit 63 uses the ID in the disc of the stopped playback in step S 452 to specify the current clip A playback history is created, and the process proceeds to step S4453. In step S 453, the disk information file management section 63 sets the disk information file holding section
- step S453 If it is determined in step S453 that the current playback history includes the clip-designated playback history corresponding to the same clip as the clip-designated playback history created this time, the disc information file management unit 6 In step 3, the process proceeds to step S4 54 to delete the old clip-designated playback history in the playback history of the disc information file held in the disc information file holding section 52, 5 Register the new clip specified playback history created in step 2 at the latest position in the playback history. For example, in the case of Fig. 11, when the history of the designated clip playback of the clip with the disc ID "C0003" is created, the disc information file management unit
- the playback history with the disc ID “C0003” also exists on the sixth line in FIG. 11, but this playback history is a tape-like playback history. However, since it is not the history of the clip designated playback, it is not updated by the processing in step S445.
- the disk information file management unit 63 which has completed the processing in step S454, proceeds to step S456.
- step S445 If it is determined in step S445 that there is no clip-specific playback history corresponding to the same clip as the clip-specific playback history created this time in the current playback history, the disc information file management unit In step 3, the process proceeds to step S 4 5 5 to delete the shortest history of the playback history of the disc information file held in the disc information file holding section 52, and 4 5 2 Register the newly created clip specified playback history at the latest position. For example, in the case of FIG. 11, when the history of the designated clip playback with the disc ID “C0001” is created, the disc information file management section 63 stores the disc ID in the playback history of FIG. Since there is no clip-designated playback history of "C0001", the history on line 9 in Fig.
- the disc information file management unit 63 which has completed the processing in step S455, advances the processing to step S456 in FIG. If the playback control unit 15 determines in step S451 that the type of playback stopped is not clip-designated playback, the disc information file management unit 63 processes in step S456. Proceed. In step S456, the disc information file recording control unit 82 stores the updated disc information file held in the disc information file holding unit 52 into the disc information file recorded on the disc 32. Overwrite and record.
- the disc information file recording control unit 82 that has completed the processing of step S456 ends the disc information file update processing.
- the recording / reproducing apparatus 1 can record the reproduction history on the disc 32 at the time of reproducing the material data by various methods, and in the next reproduction processing, Using the playback history, playback can be resumed from the position (frame) where playback was stopped last time.
- the playback history is created so that clips and edit lists are specified using the ID in the disc, not only the data amount of the playback history is reduced, but also the recording and playback device 1 When the playback is resumed, the load of processing for reading the clip edit list can be reduced.
- the present invention is not limited to this.
- an editing apparatus for editing material data may be used.
- the index file for centrally managing the file name (including the absolute path) of the clip or edit list, the UMID, and the ID in the disk as described above is recorded on the disk 32 in advance. If this is the case, a playback device that performs playback processing of material data may be used.
- the configuration of the editing apparatus to which the present invention is applied includes the configuration of the recording / reproducing apparatus 1 shown in FIG.
- the process of creating an index file and adding a clip edit list with respect to the playback of material data by this editing device is the same as that of the recording and playback device 1 described above. Is omitted.
- FIG. 29 is a block diagram showing a configuration example of a playback device to which the present invention has been applied.
- the same parts as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
- the playback device 300 is a playback device that plays back the material data recorded on the disc 32, has a recording control unit 311 that records a disc information file on the disc 32, and As in the case of the device 1, the material data can be reproduced from the previous reproduction stop position using the disc information file.
- the recording control unit 311 has a disc information file creation unit 81 and a disc information file recording control unit 82, as in the case of the recording control unit 16 of the recording / reproducing apparatus 1 shown in FIG. By using these, a disc information file can be created, and a newly created playback history can be recorded on the disc 32 attached to the drive 26.
- the playback device 300 is obtained by deleting the material data recording function from the recording / playback device 1 shown in FIG. 1 and the playback process of the material data recorded on the disc 32 is described above. This is the same as in the case of the recording / reproducing device 1. That is, the playback device 300 plays back the material recorded on the disc 32 using a method such as tape-like playback, edit list designation playback, or clip designation playback, and the like.
- the playback history can be recorded on the disc 32. Also, the playback device 300 At the start, the source data can be played back from the previous playback stop position by referring to the playback history recorded on the disc 32.
- the playback device 300 stores the playback history in the playback history.
- the processing load for reading the clip edit list can be reduced.
- the playback stop position has been described to be stored in frame units.
- the present invention is not limited to this, and any unit may be used. (Group of Picture) unit or time code of a unit different from the frame unit may be used.
- the playback stop position is described as being stored by the number of frames from the first frame (or the first frame).
- the present invention is not limited to this. Is also good.
- the recording / reproducing device, the editing device, or the reproducing device to which the present invention is applied records the reproduction history of the material data as a file different from other information on the disk 32, and when the reproduction starts, the disk 3 It is only necessary to perform the process of determining the playback start position using the playback history recorded in 2, and any process may be performed as long as the process is similar to the process with such contents. Processing other than such processing may be further performed.
- the configuration of the recording / reproducing device, the editing device, or the reproducing device to which the present invention is applied may be a configuration other than the above-described configuration as long as such processing can be performed.
- the series of processes described above can be executed by hardware or can be executed by software. When executed by software, the above-described image processing apparatus is configured by a personal computer as shown in FIG. In FIG. 30, the same parts as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
- the CPU 401 of the personal computer 400 executes various programs in accordance with programs stored in the ROM 402 or programs loaded from the storage unit 413 to the RAM 403. Execute the process.
- the RAM 403 also stores data necessary for the CPU 401 to execute various processes as needed.
- the CPU 401, the ROM 402, and the RAM 403 are interconnected via a bus 404.
- the bus 404 is also connected to an input / output interface 410.
- the input / output interface 410 consists of an input unit 411 consisting of a keyboard, a mouse, etc.
- An output unit 412, a storage unit 413 including a hard disk, and a communication unit 414 including a modem are connected.
- the communication unit 414 performs a communication process via a network including the Internet Network.
- a drive 415 is connected to the input / output interface 410 as necessary, and a removable medium 421 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately mounted.
- the computer programs read from these are installed in the storage unit 413 as needed.
- a program constituting the software is installed from a network recording medium.
- this recording medium is distributed separately from the main body of the apparatus to provide the program to the user.
- Disks including floppy disks
- optical disks CD-ROMs (Compact Disk-Read Only Memory)
- DVD including Digital Versatile Disk
- Magneto-Optical Disk including MD (Mini-Disk)
- Removable Media 31 or 41 consisting of semiconductor memory etc.
- R0M12 or R0M402 in which the program is recorded which is provided to the user in a state where it is already installed in the main unit, and the storage unit 2
- the steps of describing a program provided by a medium may be performed in chronological order according to the order described, or may be performed in parallel or individually, even if not necessarily performed in chronological order. This includes the processing to be executed.
- a system refers to an entire device including a plurality of devices.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP04736355A EP1632947A4 (en) | 2003-06-11 | 2004-06-08 | INFORMATION PROCESSING DEVICE AND METHOD, PROGRAM, AND RECORDING MEDIUM |
US10/560,256 US8437604B2 (en) | 2003-06-11 | 2004-06-08 | Information process apparatus and method, program, and record medium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003165837A JP2005004852A (ja) | 2003-06-11 | 2003-06-11 | 情報処理装置および方法、プログラム、並びに記録媒体 |
JP2003-165837 | 2003-06-11 |
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WO2004112026A1 true WO2004112026A1 (ja) | 2004-12-23 |
Family
ID=33549233
Family Applications (1)
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PCT/JP2004/008290 WO2004112026A1 (ja) | 2003-06-11 | 2004-06-08 | 情報処理装置および方法、プログラム、並びに記録媒体 |
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US (1) | US8437604B2 (ja) |
EP (1) | EP1632947A4 (ja) |
JP (1) | JP2005004852A (ja) |
CN (1) | CN100583281C (ja) |
WO (1) | WO2004112026A1 (ja) |
Cited By (1)
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EP1612791A1 (en) * | 2003-04-04 | 2006-01-04 | Sony Corporation | Data processing method, device thereof, and program |
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JP3885597B2 (ja) | 2002-02-05 | 2007-02-21 | ソニー株式会社 | 無線通信システム及び無線通信制御方法、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム |
US20080133564A1 (en) * | 2004-11-09 | 2008-06-05 | Thomson Licensing | Bonding Contents On Separate Storage Media |
JP2007128448A (ja) * | 2005-11-07 | 2007-05-24 | Sony Corp | ファイルシステム及びファイル情報処理方法 |
JP5046561B2 (ja) * | 2006-05-31 | 2012-10-10 | ソニー株式会社 | 記録制御装置および記録制御方法、並びにプログラム |
JP4285512B2 (ja) | 2006-07-31 | 2009-06-24 | ソニー株式会社 | 記録装置、記録方法、再生装置、再生方法、記録再生装置、記録再生方法、撮像記録装置及び撮像記録方法 |
JP4659714B2 (ja) | 2006-09-29 | 2011-03-30 | ソニー株式会社 | 記録再生装置及びコンテンツ管理方法 |
JP4967572B2 (ja) | 2006-09-29 | 2012-07-04 | ソニー株式会社 | 記録再生装置及び記録再生方法 |
JP2008146225A (ja) * | 2006-12-07 | 2008-06-26 | Canon Inc | 編集装置および編集方法および編集プログラム |
US20090187581A1 (en) * | 2008-01-22 | 2009-07-23 | Vincent Delisle | Consolidation and association of structured and unstructured data on a computer file system |
US20110029587A1 (en) * | 2008-03-31 | 2011-02-03 | Fujii John M | Updating Retrieval Codes In Response To File Transfers |
KR101627855B1 (ko) * | 2008-07-01 | 2016-06-07 | 삼성전자주식회사 | 서버에 등록된 사용자 설정 정보의 이동 제어 방법 및시스템 |
KR101672454B1 (ko) * | 2009-10-30 | 2016-11-04 | 삼성전자 주식회사 | 컨텐트 이용 이력에 기반한 네트워크 컨텐트 서비스 관리 방법 및 장치 |
JP2011254264A (ja) * | 2010-06-01 | 2011-12-15 | Jvc Kenwood Corp | 放送受信記録装置、放送受信記録方法及びプログラム |
JP5954751B2 (ja) | 2014-09-29 | 2016-07-20 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | テープ上のデータをロールバックする方法及びファイルシステム |
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- 2004-06-08 US US10/560,256 patent/US8437604B2/en not_active Expired - Fee Related
- 2004-06-08 CN CN200480019219A patent/CN100583281C/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN1816874A (zh) | 2006-08-09 |
EP1632947A4 (en) | 2011-05-11 |
US8437604B2 (en) | 2013-05-07 |
CN100583281C (zh) | 2010-01-20 |
EP1632947A1 (en) | 2006-03-08 |
US20070206920A1 (en) | 2007-09-06 |
JP2005004852A (ja) | 2005-01-06 |
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