WO2005036553A1 - ファイル管理装置、ファイル管理方法、ファイル管理方法のプログラム及びファイル管理方法のプログラムを記録した記録媒体 - Google Patents
ファイル管理装置、ファイル管理方法、ファイル管理方法のプログラム及びファイル管理方法のプログラムを記録した記録媒体 Download PDFInfo
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- WO2005036553A1 WO2005036553A1 PCT/JP2004/013286 JP2004013286W WO2005036553A1 WO 2005036553 A1 WO2005036553 A1 WO 2005036553A1 JP 2004013286 W JP2004013286 W JP 2004013286W WO 2005036553 A1 WO2005036553 A1 WO 2005036553A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
- H04N1/212—Motion video recording combined with still video recording
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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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
-
- 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
-
- 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
- G11B27/326—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 used signal is a video-frame or a video-field (P.I.P.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
- H04N1/215—Recording a sequence of still pictures, e.g. burst mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- 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
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
Definitions
- the present invention relates to a file management device, a file management method, a program of the file management method, and a recording medium on which a program of the file management method is recorded, and can be applied to, for example, an optical disk device.
- the present invention manages a large number of still image files by combining multiple still image files into one movie file and reregistering it in an index file in an index file that is a series of entries based on file excerpt information Even if it does, it is possible to prevent an extreme increase in the number of entries.
- Japanese Patent Application Laid-Open No. 2001-84705 discloses that an index file is created from a large number of files recorded on a recording medium and recorded on this recording medium. A method for improving the operability of these many files by using an index file has been proposed.
- Japanese Patent Application Laid-Open No. 2002-2798996 also discloses that, in the index file created in this way, by tiering and managing each file, the operability of these files is further improved.
- Methods have been proposed to improve.
- the managed file is a file related to video content
- property data is created from the attributes of each managed file
- a property entry file is created by continuation of entries based on this property data.
- thumbnail images are created from the respective files to be managed, and thumbnails are created by successive entries using the thumbnail images.
- a file image entry file is created. In each property entry, an index indicating the corresponding thumbnail image entry is recorded.
- the index file can display the thumbnail images recorded in the thumbnail image entry file and introduce the user to the large number of video contents recorded on the recording medium.
- the video content of the thumbnail image selected by the user from the video content introduced in this way can be provided to the user.
- the number of files to be recorded on a single recording medium is significantly smaller in still image files than in video files because the data volume is much smaller than that of video files.
- the number of entries in the index file is extremely increased due to the expected increase.
- the present invention has been made in view of the above points, and has a file management apparatus and a file management method capable of preventing an excessive increase in the number of entries even when managing a large number of still image files. It is intended to propose a file management method program and a recording medium storing the file management method program.
- the present invention is applied to a file management device that manages files recorded on a recording medium, and a plurality of still image files recorded on the recording medium are processed by organizing an index file.
- a file management device that manages files recorded on a recording medium, and a plurality of still image files recorded on the recording medium are processed by organizing an index file.
- the entry of the index file relating to a plurality of still image files combined in the movie file is deleted, and an entry based on the excerpt information of the movie file is registered in the index file.
- the present invention is applied to a file management apparatus that manages files recorded on a recording medium, and a plurality of still image files recorded on the recording medium are combined into one file by a process of organizing index files.
- a movie file delete the index file entries related to the multiple still image files combined in the movie file, and register the entry based on the movie file excerpt information in the index file.
- the number of entries in the index file can be reduced because the number of entries is reduced to one movie file, which prevents an excessive increase in the number of entries even when managing a large number of still image files. Can be.
- the present invention is applied to a file management method for managing files recorded on a recording medium, and by organizing index files, a plurality of still image files recorded on the recording medium are combined into one file.
- To create a movie file delete the entry of the index file related to the plurality of still image files combined in the movie file, and register the entry based on the excerpt information of the movie file in the index file.
- the processing procedure is applied to a file management method program for managing a file recorded on a recording medium, and the processing procedure is recorded on the recording medium.
- Multiple still image files are combined into one file to form a movie file, and the index file entries related to the multiple still image files combined into a movie file are deleted, and the excerpt information of the movie file is used.
- a process step for organizing an index file for registering an entry in an index file is provided.
- the processing procedure is applied to a recording medium recording a file management method program for managing a file recorded on the recording medium.
- a plurality of still image files recorded on the medium are combined into one file to form a movie file, and the index file entries related to the plurality of still image files combined into a movie file are deleted, and a movie file excerpt It is provided with a processing step of organizing an index file for registering an entry based on information in an index file.
- a recording medium recording a program of a file management method capable of preventing an extreme increase in the number of entries is provided. can do.
- an extreme increase in the number of entries can be prevented even when a large number of still image files are managed by index files.
- FIG. 1 is a block diagram showing an optical disc device according to Embodiment 1 of the present invention.
- FIG. 2 is a chart showing an index file.
- FIG. 3 is a chart for explaining a process of organizing an index file.
- FIG. 4 is a flowchart showing a processing procedure relating to a process of organizing an independence file.
- FIG. 5 is a chart for explaining index file arrangement processing in the optical disc device according to the second embodiment of the present invention.
- FIG. 1 is a block diagram showing an optical disc device according to an embodiment of the present invention.
- the optical disk device 1 a video signal and an audio signal of a subject are acquired by an imaging unit and an audio acquisition unit (not shown), and an imaging result based on the video signal and the audio signal is recorded on the optical disk 2. Also, the imaging result recorded on the optical disk 2 is reproduced and output from a display means by a liquid crystal display panel, an audio output means by a speaker, and output to an external device.
- the imaging result is obtained together with the audio signal in the form of a moving image or a still image under the control of the system control microcomputer 19, and the imaging result of the moving image is obtained in the format of MPEG (Moving Picture Experts Group).
- MPEG Motion Picture Experts Group
- the video encoder 11 After compression, it is recorded on the optical disc 2 in a predetermined file format together with the audio signal. On the other hand, a still image is recorded on the optical disk 2 in a predetermined file format together with an audio signal after the data pressure is changed to fj according to the format of JPEG (Joint Photographic Coding Experts Group).
- JPEG Joint Photographic Coding Experts Group
- Quick Time hereinafter referred to as “Q T” is applied to this file format.
- the video encoder 11 generates image data by performing an analog-to-digital conversion process on a video signal based on an imaging result, and encodes the image data according to an MPEG format or a JPEG format. And outputs encoded data based on the image data.
- the audio encoder 12 performs an analog-to-digital conversion process on the audio signal based on the imaging result to generate audio data, encodes the audio data, and outputs encoded data based on the audio data.
- the file generator 15 multiplexes the encoded data output from the video encoder 11 and the audio encoder 12 during recording, and outputs the multiplexed data under the control of the system control microcomputer 19.
- the memory controller 18 switches its operation under the control of the system control microcomputer 19, and stores the data string output from the file generator 15 and various data output from the system control microcomputer 19 to the memory 17 during recording.
- the data is sequentially recorded and temporarily stored, and the stored data is output in accordance with the subsequent error correction code / decoder 21 processing.
- the output data of the error correction code decoder 21 is temporarily held and output to the file decoder 16 and the system control microcomputer 19. Power.
- the error correction code Z decoder 21 switches its operation under the control of the system control microcomputer 19, and during recording, temporarily records the output data of the memory controller 18 in the memory 20 and adds an error correction code.
- the error correction code / decoder 21 temporarily stores the data output from the data modulator / demodulator 23 in the memory 20 in a predetermined order and outputs the data to the memory controller 18 in reverse to the time of reproduction and recording. Thereby, the data output from data modulator / demodulator 23 is subjected to the interleaving process and output. At this time, error correction processing is performed using the error correction code added during recording.
- the data modulator / demodulator 23 switches its operation under the control of the system control microcomputer 19, and converts the output data of the error correction code Z decoder 21 into a serial data string during recording, and then modulates the magnetic field. Output to modulation driver 24 or optical pickup 33. At the time of reproduction, a clock is reproduced from the reproduction signal output from the optical pickup 33, and the reproduction signal is subjected to binary identification and demodulation processing with reference to this clock to correspond to the serial data sequence generated at the time of recording. The reproduced data is obtained, and the reproduced data is output to the error correction code / decoder 21.
- the magnetic field modulation driver 24 drives the magnetic field head 32 by the output signal of the data modem 23 under the control of the system control microcomputer 19 during recording.
- the magnetic field head 32 is held so as to face the optical pickup 33 with the optical disk 2 interposed therebetween, and the output data of the data modulator / demodulator 23 is located at the laser one beam irradiation position of the optical pickup 33. Apply the modulation magnetic field corresponding to.
- the imaging result and the like are recorded on the optical disk 2 by a thermomagnetic recording method.
- the optical disk 2 is a disk-shaped recording medium, and in this embodiment, is a rewritable optical disk such as a magneto-optical disk (MO: Magneto-Optical Disk) and a phase change disk.
- the spindle motor 31 controls the optical disk 2 by controlling the servo circuit 30 so that the linear velocity is constant according to the optical disk 2 (CLV: Constant Linear Speed).
- the optical disk 2 is rotationally driven under conditions such as Velocity), constant angular velocity (CAV, Constant Angular Velocity), and zone CLV (ZCLV: Zone Constant Linear Velocity).
- the servo circuit 30 controls the operation of the spindle motor 31 based on various signals output from the optical pickup 33, thereby executing a spindle control process. Similarly, the servo circuit 30 performs tracking control and focus control of the optical pickup 33, seeks the optical pickup 33 and the magnetic field head 32, and further executes processes such as focus search.
- the drive control microcomputer 22 controls operations such as seek in these servo circuits 30 in accordance with an instruction from the system control microcomputer 19.
- the optical pickup 3 3 irradiates the optical disk 2 with a laser beam, receives the return light thereof by a predetermined light receiving element, and generates and outputs various control signals by arithmetically processing the received light result. A reproduced signal whose signal level changes in accordance with the pit row and mark row formed in 2 is output.
- the optical pickup 33 switches its operation under the control of the system control microcomputer 19, and when the optical disk 2 is a magneto-optical disk, intermittently starts up the amount of laser beam applied to the optical disk 2 during recording. As a result, the optical disc device 1 records the imaging result and the like on the optical disc 2 by a so-called pulse train method.
- the optical pickup 3 3 calculates the light amount of the laser beam applied to the optical disk 2 according to the output data of the data modulator / demodulator 23 from the light amount at the time of reproduction. The light amount is raised, and the imaging result and the like are recorded on the optical disk 2 by applying the thermal recording method.
- the video signal and the audio signal based on the imaging result are data-compressed by the video encoder 11 and the audio encoder 12, and then converted to a QT movie file by the file generator 15;
- the memory controller 18, the error correction code Z decoder 21, and the data modulator / demodulator 23 sequentially pass through the optical pickup 33, or the optical pickup 33 and the magnetic field head 32 to generate the QT movie file.
- Data, index file data, etc. are recorded on the optical disc 2.
- the reproduced signal obtained from the optical pickup 33 is processed by the data modulator / demodulator 23 to obtain reproduced data, and the reproduced data is processed by the error correction code decoder 21 so that the optical disk 2 A QT movie file, an index file, and the like recorded in the memory controller are reproduced, and the memory controller 18 outputs the QT movie file, the index file, and the like.
- the file decoder 16 receives the data of the QT movie file output from the memory controller 18 and decomposes the data into encoded data of image data and audio data and outputs the coded data.
- the video decoder 13 decodes the encoded data of the image data and outputs it to display means (not shown) and an external device.
- the audio decoder 14 expands the encoded data of the audio data output from the file decoder 16 and outputs the data to audio output means (not shown) and an external device.
- the optical disk device 1 can monitor the imaging result reproduced from the optical disk 2.
- the optical disk device 1 has an interface for connecting an external device such as a computer, so that the output data of the computer is recorded on the optical disk 2 in place of the imaging result, and the file recorded on the optical disk 2 is reproduced.
- Computer processing
- the operation unit 26 includes various operators of the optical disk device 1 and a touch panel arranged on a liquid crystal display panel, and notifies the system control microcomputer 19 of various operations by the user.
- the system control microcomputer 19 is a computer for controlling the operation of the entire optical disc device 1.
- the optical pickup 3 is controlled. 3 is sought to the innermost circumference of the optical disk 2 and the management information of the file management system for the optical disk 2 is reproduced. Further, the system control microcomputer 19 acquires the reproduced management information from the memory controller 18 and stores it in the built-in memory. As a result, the system control microcomputer 19 detects the address and free space of each file recorded on the optical disc 2.
- the processing program for this system control microcomputer 19 is installed in advance. Instead, the program may be downloaded and installed via a network, or may be reproduced and installed on a recording medium. Incidentally, in such a recording medium, various recording media such as an optical disk, a magnetic tape, and a memory card can be widely applied. Further, the system control microcomputer 19 searches the management information obtained in this way, and if an index file is recorded on the optical disc 2, the optical pickup 33 seeks to the recording position of the index file, and Play an index file. The reproduced index file is obtained from the memory controller 18 and recorded and stored in the built-in memory. As a result, in this embodiment, the overall operability of the processing of the file recorded on the optical disc 2 is improved by using the index file.
- the system control microcomputer 19 displays the contents of the QT movie file recorded on the optical disc 2 by displaying a thumbnail image or the like on the monitor liquid crystal display panel using the index file in response to a user operation. Introduce and accept the user's file selection by this introduction, and control the whole operation to play the file selected by this user by the corresponding management information. As a result, the optical disc device 1 provides the user with the imaging result of the moving image or the still image together with the audio signal.
- the optical pickup 33 is sought to this empty area, and sequentially obtained imaging results are recorded on the optical disc 2.
- the management information stored in the memory is updated so as to correspond to the recording of the QT movie file by recording the imaging result, and when the optical disk 2 is ejected, the management information of the optical disk 2 is updated based on the updated management information.
- the update of the management information is executed by outputting the management information held and updated in the memory to the error correction code decoder 21 via the memory controller 18.
- the system control microcomputer 19 outputs to the file generator 15 various information necessary for generating a QT file to be used for recording. Also, the information necessary for generating the index file is obtained through the file generator 15 and the obtained information is obtained. Based on the obtained information and the information output to the file generator 15, the index file held in the memory is updated for the QT movie file or the like to be newly recorded on the optical disc 2, and the update processing in the management information is performed in the same manner The index file recorded on the optical disc 2 is updated by the index file thus updated and held in the memory.
- the index file and the management information held in the memory are updated in a manner similar to that at the time of recording so as to correspond to the editing process. Updates the index file and management information of the optical disc 2 with the index file and management information stored in the memory.
- the QT movie file is recorded in an external reference format. That is, in the optical disk device 1, a video file and an audio file are recorded on the optical disk 2 by a video signal and an audio signal, respectively, and a resource file for managing the video file and the audio file is recorded on the optical disk 2. As a result, a QT movie file including the video file, the audio file, and the resource file is recorded on the optical disc 2.
- the index file has information necessary for reproduction such as an address of a recording position, a file name, and a file length by the file management system of the optical disc 2.
- the optical disc device 1 selects the QT movie file recorded on the optical disc 2 by using the index file, and reproduces the selected file from the optical disc 2 based on the file management system, thereby obtaining the optical disc 2 Even if a large number of QT movie files are recorded, the desired file can be quickly and accurately selected, and the operability is improved accordingly.
- the index file is the QT movie file Information that extracts the information related to the QT movie file (ie, the excerpt information) is assigned to the information that introduces the contents, etc., and is formed by a series of entries made up of blocks of this excerpt information. The contents of the information can be easily and quickly grasped.
- the index file is formed by grouping the data groups based on the excerpt information by classifying them according to their attributes and has the same file structure as the QT movie file to be recorded on the optical disc 2, thereby forming a QT movie file. It can be created and processed using the configuration of the disk device 1, and the optical disk device 1 can be simplified accordingly.
- the index file is composed of a text entry file E3, a thumbnail image entry file E2, It is assigned to the property entry file E1, and is composed of these entry files E1 to E3 and a resource file (not shown) based on the management information of these entry files E1 to E3.
- each of the entry files E1 to E3 is provided with headers PH, THH, and TXH indicating the attributes of the entry files E1 to E3 at the beginning, followed by fixed-length slots.
- the entries are formed so as to be continuous.
- the text entry file E3 data indicating the character string of the title relating to the disc title, each file to be managed, etc. is sequentially assigned to the slots, and is formed by a series of entries based on the data of these titles.
- the thumbnail image entry file E2 is composed of a series of entries made up of a disc title and a still image showing the contents of each file to be managed, which are sequentially assigned to slots.
- Each of the text entry file E 3 and the thumbnail image entry file E 2 has one slot which is formed with a fixed length, so that one management target file is formed according to the data amount of the corresponding excerpt information obtained from the management target file.
- One or more slots are assigned to a file. Also, depending on the type of managed file, the type of excerpt information differs, and depending on the type of managed file, May not be provided.
- the property entry file E1 is assigned data indicating the disc title and the attribute of each managed file, and the disc title and the excerpt information based on the binary data set in each managed file are the management information of the entry. Are sequentially assigned to slots, and are formed by a series of entries based on these excerpt information.
- each slot is formed by a fixed length, similarly to the text entry file E3 and the thumbnail image entry file E2.
- the property entry file E1 is always provided even when the types of the managed files are variously different, and further corresponds to the entries provided in the text entry file E3 and the thumbnail image entry file E2. The entry of each managed file is set as described above.
- one or more property entry files E1 are provided depending on the data amount of the corresponding excerpt information.
- a plurality of entries are assigned to one managed file while the extracted information of one managed file is assigned to the slot of If it is set, entries will be provided for this managed file for at least this multiple files, regardless of the amount of data in the excerpt information.
- the index file by configuring the real data portion with a fixed length in this way, unnecessary consumption of the recording medium can be reduced, and the number of accesses to the recording medium can be reduced to shorten the processing time. It has been done.
- the property entry file E1 contains, for each entry, management information for specifying the entry of the corresponding other entry file as the management information of the entry indicating the relationship with the other entry (the related information indicated by the arrow in FIG. 2). Is set, and in the case of an entry using a plurality of slots, management information relating to an extension slot that specifies successive entries is set.
- the index file stores a plurality of pieces of excerpt information of one file to be managed based on the management information indicating the relationship with the other entries set in the property entry file E1. Identify the slot.
- information for specifying the corresponding management target file is set, and thereby the management target file based on the excerpt information recorded in this index file is specified.
- the index file invalidates the corresponding entries of the property entry file E1, the other entry files E2, and E3 collectively only by setting the valid / invalid information provided in the property entry. To delete the registration of the managed file in the index file.
- the index file can register not only the file actually existing on the recording medium but also the actual folder and the virtual folder by the file management system of the recording medium in each entry file. In each property entry, such a folder can be registered. You can define a hierarchical structure for the property entry that registered This allows the index file to store the files recorded on the optical disc 2 by the folder structure based on the actual hierarchical structure set on the optical disc 2 and further by the virtual hierarchical structure set on the index file. to manage.
- management information such as the start position of the slot in each entry file is recorded together with the attribute information of the index file.
- the index file provides the thumbnail images to the user via the thumbnail image entry file E2, or the title of each file to the user via the text entry file E3.
- the selection of the file is accepted, and the selected file can be detected by the file name by the file management system by the description of the property entry, whereby the operability by the user can be improved.
- the system control microcomputer 19 obtains and decodes the compressed image data and audio data from the file generator 15 and then decodes the thumbnail image by thinning out the pixels in the image data. Then, a thumbnail image entry file E2 is generated from this thumbnail image. Further, title data is generated from the file information of each file to be managed held in the file management system of the optical disk 2 and further by the user's settings, thereby generating the text entry file E3. In response to this, a property entry file E1 is created in response to the user's operation, and a resource file is created in accordance with these entry files E1 to E3.
- the system control microcomputer 19 sorts out the index file by executing the process of organizing the index file according to an instruction from the user, thereby reducing the number of entries registered in the index file.
- a plurality of still image files already registered in the index file are combined into one file, and a movie file in which still images of the still image
- This is executed by creating and deleting the registration of the index file relating to the plurality of still image files, and registering the movie file in the index file.
- this movie file is created in the QT file format, and the actual data of the corresponding entries of the thumbnail image entry file E2 and the text entry file E3 are also registered in this movie file, thereby as if they were index files. Ensure operability as if multiple files are registered.
- the QT format file (Fig. 3 (C)) is formed by combining actual data such as moving images, still images, and audio, and management information for managing the actual data in a hierarchical structure called an atom.
- these actual data are put together and assigned to a movie data atom (Movie Data Atom (radat)), and management information for managing the actual data of the movie data atom is put together and the movie atom (Movie Atom) is created.
- Atom moov
- the movie atom has a still image track T4 for managing the actual data as a still image, a thumbnail track T2 for managing the actual data as a thumbnail image, and text data as a title and the like.
- a title track # 3 that manages actual data according to the title track.
- the management target of such tracks ⁇ 2 to ⁇ 4 is not limited to the self-contained format set to the actual data of the movie data atom (Movie Data Atom (radat)) of the file in this QT format, It is also possible to set the management target of the tracks T2 to T4 to an external file by the reference format.
- a movie file is created by combining a plurality of still image files by this external reference format. For thumbnail image entries and text entries, a movie file is created in a self-contained format.
- the external reference format here is a QT file format in which the movie data atom (mdat) of another QT file is set to actual data
- the self-contained format is a format in which real data and a movie atom (moov) are It is an integrated QT file format.
- a QT file using only a movie atom (moov) in an external reference format is called a resource file.
- the system control microcomputer 19 sets each sample S 1 of the still image track T 4 In S5 to S5, a movie atom is formed so as to point to each of the plurality of still image files F1 to F5, thereby combining the plurality of still image files F1 to F5 into one file to form a movie file FQT Generate Also, thumbnail image data and title data are copied from the corresponding thumbnail image entry file E2 and text entry file E3, and are sequentially recorded in the movie data atom of the movie file FQT.
- the corresponding property entries PES 2 to PES 6 in the property entry file E 1 indicating the still image files F 1 to F 5 respectively are set by setting the valid / invalid information indicating valid / invalid to invalid, so that each entry file is set.
- the registration of the still image files F 1 to F 5 in the index file for E 1 to E 3 is deleted.
- the excerpt information of the movie file FQT is registered in the property entry thus invalidated so as to point to the movie file FQT created in this way (FIG. 3 (D)).
- the system control microcomputer 19 combines a plurality of entries based on a plurality of still image files into one entry, and reduces the number of entries related to each entry file accordingly.
- the system control microcomputer 19 may, for example, add any one of the thumbnail images related to the plurality of still image files to the plurality of still image files. The folder name and the like are registered.
- FIG. 4 is a flowchart showing a processing procedure of the system control microcomputer 19 relating to the index file organizing processing.
- the system control microcomputer 19 executes this processing procedure, for example, when the power is turned on, when the optical disc 2 is loaded, and when the recording of the imaging result is completed. That is, when starting this processing procedure, the system control microcomputer 19 moves from step SP1 to step SP2, detects the number of entries in the property entry file E1, and determines whether the number of entries is equal to or greater than the predetermined reference value TH.
- the reference value TH is a value set in advance according to the number of entries that can be processed by various devices related to the index file. If a negative result is obtained here, In this case, if there are enough empty slots, the process moves from step SP2 to step SP3, and this processing procedure ends.
- step SP2 if a positive result is obtained in step SP2, the system control microcomputer 19 shifts from step SP2 to step SP4.
- the system control microcomputer 19 displays a predetermined menu screen and accepts a selection as to whether or not to execute the process of organizing the index files.
- the system control microcomputer 19 moves from step SP 4 to step SP 3 and ends this processing procedure.
- step SP6 the system control microcomputer 19 shifts from step SP 4 to step SP 5 and proceeds to step SP 5 to arrange the folders that can be organized. Is displayed.
- step SP6 the user accepts the input of the folder to be organized by the user, and in the next step SP7, the system control microcomputer 19 determines the still image file belonging to the folder specified by this user. Execute the process of organizing the index file. Then, the system control microcomputer 19 sequentially selects the property entries of the file selected by the user according to the management information on the hierarchical structure set in the property entry file E1 of the index file, and For the still image file according to Fig. 3, delete the registration of the still image file by creating the movie file FQT described above with reference to Fig. 3, and register this movie file FQT in the property entry file E1. Then, the process proceeds to step SP3 to end the processing procedure.
- the system control microcomputer 19 displays the existing folders and virtual folders formed on the index file in a hierarchical structure, and displays the hierarchical structure.
- Folder A list of files belonging to this folder is displayed by selection.
- the index file displays a list of files belonging to the folder selected by the user based on the thumbnail images registered in the index file when the user instructs to display the file by the thumbnail image.
- the files belonging to the folder selected by the user are displayed in a list by displaying the text data registered in the text entry file of the index file.
- the system control microcomputer 19 uses the application related to the QT movie file.
- the thumbnail images recorded in the movie data atom are sequentially played back and displayed in a list by recording the thumbnail track T2 of the movie file FQT.
- the list display by the text data recorded in the movie data atom is provided.
- the system control microcomputer 19 manages the corresponding property entry if this file is a file registered in the index file.
- the information instructs the file management system of the optical disc device 1 to reproduce the file, and thereby reproduces the corresponding file from the optical disc 2 and provides it to the user.
- this file is a still image file combined into a movie file
- the system control microcomputer 19 detects the corresponding still image file based on the management information recorded on the still image track T4. By playing the external reference file in the QT movie file, the corresponding file is played from the optical disc 2 and provided to the user.
- the still image track T4 When the user instructs to delete one of the still image files registered together in the movie file in this way, the still image track T4, the thumbnail track T2, and the thumbnail track T2 in the QT movie file FQT movie atom
- the still image related to this still image file is deleted from the QT movie file FQT, and the still image file is deleted from the optical disk 2 by the file management system.
- the system control microcomputer 19 reorganizes the index file. Contrary to the case of processing, delete the entry to the index file of this movie file FQT.
- the excerpt information is sequentially registered in the property entry file E1 of the index file so as to sequentially indicate the still image files sequentially indicated by the still image tracks # 4 of the movie file FQT.
- thumbnail images and text data are recorded in the movie file FQT's thumbnail track ⁇ ⁇ 2 and the title track ⁇ 3, and are sequentially played back from the movie file FQT and recorded as thumbnail image entry files ⁇ 2 and text entry files ⁇ 3 And set the management information of the property entry to correspond to this registration.
- the movie file is deleted from the optical disk 2.
- the optical disk device 1 when the optical disk 2 is loaded into a device related to an application that cannot process each still image file in a state where the still image files are combined into a movie file, the individual still images The image file is re-registered in the index file so that a device related to such an application can process a still image file recorded on the optical disc 2.
- the still image data, the moving image data, and the audio data acquired by the imaging means and the audio acquisition means are respectively encoded by the video encoder 11 and the audio encoder 12.
- file generator 1 The data stream is converted to a QT movie file data stream by 5 and the recording system by memory controller 18, error correction code / decoder 21, data modem 23, magnetic field modulation driver 24, and optical pickup 33 Recorded on the optical disc 2 via the As a result, in the optical disk device 1, the imaging result of the still image and the moving image is recorded on the optical disk 2 by the QT movie file.
- the output data of the system control microcomputer 19 is output to the recording system of the optical disk device 1 so as to correspond to the recording of the file of the optical disk 2, whereby the management information relating to the file management system of the optical disk 2 is obtained. Will be updated to correspond to this QT beef file record.
- the optical pickup 33, the data modulator / demodulator 23, the error correction code / decoder 21 and the memory controller 18 are sequentially used based on the management information of the file management system. After being reproduced and decomposed into elementary streams of video data and audio data by the file decoder 16, they are decoded and output by the video decoder 13 and the audio decoder 14, respectively.
- the optical disc device 1 when recording such a QT movie file, the data for the thumbnail image is obtained by the system control microcomputer 19 from the file generator 15, and the data of the user before and after the recording of this file is obtained. Title data is acquired by the system control microcomputer 19 by input or the like. Further, information such as a file name relating to the file management system is obtained, and the system control microcomputer 19 collects the excerpt information of the QT movie file to be recorded on the optical disc 2 based on the information. In the optical disc device 1, similarly to the management information related to the file management system of the optical disc 2, an index file is generated in the memory built in the system control microcomputer 19 based on the excerpt information obtained in this way. The file is recorded on the optical disc 2 in the same manner as the QT file. The management information of the file management system is updated so as to correspond to the record of the index file.
- the optical disc device 1 introduces various files recorded on the optical disc 2 to the user by displaying the thumbnail images registered in the index file and further by displaying the title, and also allows the user to select a file.
- the user can easily and reliably select a desired file even when a large number of files are recorded on the optical disc 2, thereby improving the operability by the user.
- the file of the result of capturing an image of a moving image has a relatively large amount of data, so that the moving image file is sequentially recorded in the index file by the slot previously reserved in the index file. Even if it is recorded, it is considered that many files recorded on the optical disc 2 can be sufficiently registered in the index file.
- the data amount of a file of a captured image of a still image is smaller than that of a file of a moving image, and when a large number of files are recorded, the number of entries in the index file is extremely increased. It is difficult to register a still image file in the index file even though there is an empty area, and eventually, it may be impossible to record the still image file on the optical disc 2.
- the system control microcomputer 19 executes the process of organizing the index files, thereby reducing the number of entries in the index files. That is, in the optical disc device 1, when the user instructs the process of organizing the index file, the plurality of still image files belonging to the folder designated by the user are indicated by the external reference format.
- the QT movie file FQT is created by setting the still image track T4 as shown in FIG. 3 (FIG. 3). In the optical disk device 1, the plurality of still image files are put together to form one movie file. You.
- the entry of the index file relating to the plurality of still image files combined in the movie file is deleted, and the entry based on the excerpt information of the movie file is registered in the index file.
- a plurality of entries relating to the plurality of still image files can be reduced to one entry relating to the movie file, and accordingly, when managing a large number of still image files, However, an extreme increase in the number of entries can be prevented.
- a movie file in which the plurality of still image files are combined is formed in an external reference format.
- the still image track T4 of the movie file may be simply created to point to the still image file recorded on the optical disc 2.
- the actual data of the thumbnail track and title track of this movie file are obtained from the thumbnail image entry and text entry of the corresponding entry file and set, so that the thumbnail data and title are combined into movie data in this way.
- the still image file can be introduced to the user, and the user's selection can be accepted by such an introduction, and the same operability as when the still image file is directly registered in the index file can be ensured. it can.
- such a process of organizing the index file is executed by determining the number of entries by the system control microcomputer 19, whereby the number of entries can always be kept below a certain value. For example, even when the optical disk 2 is processed by a device having a low processing capacity related to the number of entries, the file recorded on the optical disk 2 can be surely processed by managing the index file.
- the optical disk device 1 when the user instructs the re-registration of the still image file registered in one movie file to the index file in this way, the process reverse to the process of organizing the index file is performed. Still image files combined into one movie file are individually registered in the index file. This allows the optical disk device 1 to process each still image file without any problem even when the optical disk 2 is used by a device that cannot handle a movie file in which a plurality of still image files are combined as described above. Therefore, the versatility of the optical disk 2 can be improved accordingly.
- a large number of still image files can be managed by combining multiple still image files into one movie file and registering it again in the index file.
- the movie file is an external reference file that provides an image of a corresponding still image by referring to a plurality of still image files recorded on a recording medium, a plurality of still image files can be combined into one movie file. The process of combining the files can be simplified.
- a thumbnail image is obtained from the index file and associated with the still image file to form a group of actual data based on the thumbnail image in a movie file.
- the thumbnail image and the title are combined into one movie file.
- a plurality of still image files can be managed, and the same operability as when each still image file is registered in the index file can be secured.
- the number of entries in the index file can always be managed within a certain range.
- the usability of the user can be improved by determining the number of entries in the index file and executing the process of organizing the index file according to the user's instruction obtained by notifying the user of the determination result. .
- the entries in the index file based on the excerpt information of the movie file are deleted, and the entries based on the excerpt information of multiple still image files combined by the movie file are stored in an index file.
- index file By registering each file, multiple still image files combined into one movie file can be registered individually in the index file as needed.
- a movie file is created by combining a plurality of still image files in a so-called self-contained format.
- the configuration is the same as that of the optical disk device according to the first embodiment.
- the configuration shown in FIG. I do. That is, as shown in FIG. 5 in comparison with FIG. 3, in this embodiment, the system control microcomputer 19 copies the data of the still image file from the still image file related to the process of organizing the index file. And sequentially record them in the movie data atom (FIGS. 5 (A), (B) and (C)), and set a still image track T4 related to the movie atom so as to indicate the data of the still image file. I do.
- the corresponding still image file is deleted from the optical disc 2.
- the entry in the index file is deleted to correspond to the deletion of the still image file, and the movie file is registered in the index file so as to correspond to the recording of the movie file.
- the movie data The data corresponding to the atom is copied and executed.
- the system control microcomputer 19 sets the corresponding movie data atom by recording the movie atom. Plays back the still image file data and provides it to the user.
- the system control microcomputer 19 When the user instructs the re-registration of the still image file, the system control microcomputer 19 records the data of the still image file recorded in the movie data atom in the self-contained format on the optical disk 2 in the form of individual files. In addition, property entries, thumbnail image entries, and text entries are registered in the index file so as to correspond to this record, thereby returning to the state in which still image files are individually registered in the index file.
- the same effect as in the first embodiment can be obtained by creating a movie file by combining still image files in a self-contained format. Also, if a plurality of still image files are combined in the self-contained format, the number of actual files on the file management system can be reduced.
- a plurality of still image files are stored in a QT movie file.
- the present invention is not limited to this.
- Movie files in various formats can be widely applied. Further, in the above-described embodiment, a case has been described in which, when the number of entries becomes equal to or more than a predetermined value, the process of organizing the index file is executed according to a user's instruction. When the index file organization process is performed, such as when the index file organization process is automatically executed when the number of entries exceeds a certain value regardless of the user's instruction, Various settings can be made accordingly.
- an index file is configured by integrally holding a data group based on excerpt information and a management data group for managing the data group using a QT file structure.
- various formats can be applied as needed.
- the present invention is applied to an optical disk device to record an imaging result, an output of a personal computer, and the like.
- the present invention is not limited to this, and various types of optical disk, hard disk device, etc.
- the present invention can be widely applied to a case where a large number of files recorded on a recording medium are managed, and a case where a large number of files held in a predetermined server are managed.
- the present invention is not limited to this, and the case where the index file is recorded on a recording medium different from the management target file, and further, the management This can be widely applied to cases where an index file is stored on a server different from the target file.
- the present invention can be applied to, for example, an optical disk device.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Processing Or Creating Images (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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MXPA06003722A MXPA06003722A (es) | 2003-10-09 | 2004-09-07 | Aparato y manejo de archivo, metodo de manejo de archivo, programa de metodo de manejo de archivo, y medio de registro que registra el programa de metodo de manejo de archivo. |
AU2004280777A AU2004280777A1 (en) | 2003-10-09 | 2004-09-07 | File management apparatus, file management method, program of file management method, and recording medium having stored therein program of file management method |
CA002541249A CA2541249A1 (en) | 2003-10-09 | 2004-09-07 | File management apparatus, file management method, program of file management method, and recording medium having stored therein program of file management method |
EP04772968A EP1672636A4 (en) | 2003-10-09 | 2004-09-07 | FILE MANAGEMENT APPARATUS, METHOD AND SOFTWARE, AND RECORDING MEDIUM HAVING SUCH SOFTWARE |
BRPI0415138-0A BRPI0415138A (pt) | 2003-10-09 | 2004-09-07 | aparelho e método de administração de arquivo para administrar arquivos gravados em um meio de gravação, programa de método de administração de arquivo, e, meio de gravação |
US10/574,945 US20070130199A1 (en) | 2003-10-09 | 2004-09-07 | File managing apparatus, file managing method, file managing method program, and recording medium that records file managing method program |
Applications Claiming Priority (2)
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JP2003-350206 | 2003-10-09 | ||
JP2003350206A JP3959742B2 (ja) | 2003-10-09 | 2003-10-09 | ファイル管理装置、ファイル管理方法、ファイル管理方法のプログラム及びファイル管理方法のプログラムを記録した記録媒体 |
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US (1) | US20070130199A1 (ja) |
EP (1) | EP1672636A4 (ja) |
JP (1) | JP3959742B2 (ja) |
KR (1) | KR20060122820A (ja) |
CN (1) | CN1890748A (ja) |
AU (1) | AU2004280777A1 (ja) |
BR (1) | BRPI0415138A (ja) |
CA (1) | CA2541249A1 (ja) |
MX (1) | MXPA06003722A (ja) |
RU (1) | RU2344496C2 (ja) |
TW (1) | TW200527400A (ja) |
WO (1) | WO2005036553A1 (ja) |
Families Citing this family (5)
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KR20080036946A (ko) * | 2005-08-29 | 2008-04-29 | 소니 가부시끼 가이샤 | 기록 장치, 기록 방법, 재생 장치, 재생 방법, 프로그램 및기록 매체 |
US8489610B2 (en) * | 2008-03-28 | 2013-07-16 | Nec Corporation | Method, system and program for information re-organization |
CN103810221B (zh) * | 2012-11-15 | 2019-03-15 | 腾讯科技(深圳)有限公司 | 一种文件的预览方法及装置 |
BR112015026148B1 (pt) * | 2013-04-18 | 2022-02-08 | Ruslan Albertovich Shigabutdinov | Método, sistema e meio de armazenamento não transitório legível por computador para gerenciamento de arquivo por dispositivos de computação móveis |
US9892131B2 (en) | 2013-08-26 | 2018-02-13 | Xiaomi Inc. | Method, electronic device, and storage medium for creating virtual directory |
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- 2004-09-07 EP EP04772968A patent/EP1672636A4/en not_active Withdrawn
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- 2004-09-07 BR BRPI0415138-0A patent/BRPI0415138A/pt not_active IP Right Cessation
- 2004-09-07 CN CNA2004800357988A patent/CN1890748A/zh active Pending
- 2004-09-07 WO PCT/JP2004/013286 patent/WO2005036553A1/ja active Application Filing
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- 2004-09-07 MX MXPA06003722A patent/MXPA06003722A/es active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
EP1672636A4 (en) | 2009-04-08 |
RU2006111438A (ru) | 2007-10-20 |
JP3959742B2 (ja) | 2007-08-15 |
CN1890748A (zh) | 2007-01-03 |
TW200527400A (en) | 2005-08-16 |
CA2541249A1 (en) | 2005-04-21 |
US20070130199A1 (en) | 2007-06-07 |
JP2005115709A (ja) | 2005-04-28 |
TWI305642B (ja) | 2009-01-21 |
EP1672636A1 (en) | 2006-06-21 |
KR20060122820A (ko) | 2006-11-30 |
AU2004280777A1 (en) | 2005-04-21 |
MXPA06003722A (es) | 2006-06-23 |
BRPI0415138A (pt) | 2006-11-28 |
RU2344496C2 (ru) | 2009-01-20 |
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