WO2011007672A1 - 情報処理装置、および情報処理方法、並びにプログラム - Google Patents
情報処理装置、および情報処理方法、並びにプログラム Download PDFInfo
- Publication number
- WO2011007672A1 WO2011007672A1 PCT/JP2010/061160 JP2010061160W WO2011007672A1 WO 2011007672 A1 WO2011007672 A1 WO 2011007672A1 JP 2010061160 W JP2010061160 W JP 2010061160W WO 2011007672 A1 WO2011007672 A1 WO 2011007672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- directory
- bdmv
- virtual
- virtual file
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42646—Internal components of the client ; Characteristics thereof for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4347—Demultiplexing of several video streams
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
- H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
-
- 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
Definitions
- the present invention relates to an information processing apparatus, an information processing method, and a program. More specifically, the present invention relates to an information processing apparatus, an information processing method, and a program for executing a data recording process or a data reproducing process using a recording medium such as a disk or a flash memory.
- recording / playback devices such as PCs, video cameras, players, recorders, etc., perform data recording / playback using various media such as hard disks, DVDs, disk-type media such as Blu-ray Disc (registered trademark), and flash memory. .
- the data recording / playback apparatus When performing data recording / playback using these media, the data recording / playback apparatus applies a recording / playback application corresponding to a predetermined standard, and performs data recording / playback processing according to a predetermined format.
- a recording / playback application corresponding to a predetermined standard
- BDMV and BDAV as application standards for recording and reproducing high-definition high-definition video.
- These application standards are established as data recording / playback application standards mainly using BD (Blu-ray Disc (registered trademark)).
- BDMV and BDAV are data recording / playback application standards mainly using BD, but the recording medium (recording medium) is not limited to BD, and other media such as flash memory are used. This is a data recording / reproducing application standard that can also be applied to recorded data.
- BDMV is an application standard developed for BD-ROM in which, for example, movie content is recorded in advance, and is widely used mainly in non-rewritable BD-ROM such as package content.
- the BDMV is characterized in that a navigation command or a BD-J as a program for controlling reproduction according to a user operation is stored on a disc, and an interactive function intended by a content creator can be provided. Another feature is that recording and playback can be performed using a menu screen composed of graphics and buttons.
- BDMV BD-RE3.0 standard
- BD-RE3.0 an application standard that can be applied to a recordable BD disc.
- BDAV is an application standard developed for use in rewritable BD-RE and BD-R that can be recorded only once.
- BDAV is a standard that is often used for recording and playing back video shot by a user with a video camera, for example.
- BDAV does not have an interactive function like BDMV, a program for creating menus with various designs, and a display process, and has no function such as a button display process.
- the menu provided by the BDAV standard is simple list data composed of thumbnail images.
- a program on the recording / reproducing apparatus side is used. In other words, for example, there is no choice but to use functions incorporated in the recorder or player side.
- the BDMV standard is a standard established for the purpose of not preventing the playback of package contents such as movies already recorded on BDs on BD-ROM players that have already been widely used.
- BDA Blu-ray Disc Association
- the BDMV standard also restricts the data mode of content recorded on a medium such as a disc. Specifically, for example, only data in a predetermined format such as 1080 / 60i and 1080 / 50i can be recorded as an HD (High Definition) image.
- 1080 / 60i indicates that a 1920 ⁇ 1080 pixel HD (High Definition) image is recorded in an interlaced manner, and is recorded and reproduced for 1080 lines as 60 field images per second.
- [I] indicates the interlace method. Incidentally, the progressive method is indicated as [p].
- the current BDMV standard does not allow these 4K ⁇ 2K images, 1080 / 60p, and 3D image data as recording / playback data. Therefore, there is a problem that even if a 4K ⁇ 2K ultra-high-definition image is generated as recording data, data recording using the existing BDMV standard cannot be performed.
- the BDAV standard allows recording of various types of AV data on the assumption that it will be used in a recorder. Therefore, there is no restriction on reproduction compatibility except that some AV data formats are mandatory for reproduction. Therefore, there is a degree of freedom in standard expansion compared to BDMV. That is, 4K ⁇ 2K images, 1080 / 60p, and 3D image data can be set as recording / playback data. However, as described above, there is a problem that an interactive function or a menu screen composed of graphics and buttons cannot be used.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2007-179671
- data for constructing a virtual file system for example, subtitles
- the data is copied to a local storage to be virtualized.
- the data has a small capacity such as subtitles, it can be copied locally.
- a large capacity data such as 4K ⁇ 2K images, 1080 / 60p, and 3D image data can be copied to the local storage. If this is done, copying takes time and the capacity of the local storage is also consumed.
- the present invention has been made in view of the above situation, for example, and records data that is not permitted by the BDMV, for example, 4K ⁇ 2K images, 1080 / 60p, 3D image data, and is permitted by the BDMV standard. It is an object of the present invention to provide an information processing apparatus, an information processing method, and a program that can efficiently use BDMV-specific functions such as menus with various designs and interactive functions.
- the first aspect of the present invention is: A data processing unit for performing data reproduction processing from a recording medium;
- the data processing unit Build a virtual file system in which a virtual file name is set for a part of the recording data of the recording medium, It is a configuration that executes data playback processing using the built virtual file system,
- the data processing unit For the data set with the virtual file name, Creating a first file name conversion table in which a virtual file name set in the virtual file system is associated with a file name indicating a data recording destination in the recording medium;
- An information processing apparatus constructs a virtual file system without moving data of the recording medium.
- the data processing unit includes setting data of a first directory for recording data corresponding to a first application standard set on the recording medium, and the first directory A virtual file system in which setting data of a directory other than the above is set in one virtual directory, and a data reproduction process to which the constructed virtual file system is applied are executed, and the data processing unit is other than the first directory
- a first file name conversion table is created in which the file name set in the virtual file system and the file name indicating the data recording destination in the recording medium are associated with each other. Move data of directory setting data Ukoto without building a virtual file system.
- the data processing unit includes copy target data included in a data copy instruction that is a processing instruction for storing setting data of a directory other than the first directory in a local storage unit. And the first file name conversion table is created.
- the data copy command is a data copy command issued by executing a program recorded on the recording medium.
- the data processing unit is used in a virtual file system that is configured by storing setting data of a directory other than the first directory in a local storage unit.
- the first file name conversion table is generated using the second file name conversion table generated in this way and the file name of the copy target data included in the data copy command.
- the data processing unit uses the first directory as management information used as index information of reproduction data in a virtual directory set in the virtual file system, and Management information of all reproduction target data set in a directory other than the first directory is set, and data reproduction processing using the management information is performed.
- the data processing unit may be any one of an index file, a movie object file, a playlist file, or a clip information file applied to the reproduction processing by the virtual file system.
- This is management information including
- the first application standard is a BDMV standard
- the first directory is a BDMV directory
- the data processing unit records the first directory in a BDMV directory.
- Virtual BDMV directory in which recorded playback data, playback target data recorded in a BDAV directory different from the BDMV directory, and management information recorded in a third directory other than the BDMV and BDAV directories are set as recorded data
- the first application standard is a BDMV standard
- the first directory is a BDMV directory
- the data processing unit records the first directory in a BDMV directory.
- a virtual file system having a virtual BDMV directory in which the playback target data, the playback target data recorded in a second directory different from the BDMV directory, and management information is set as recording data is constructed.
- the second aspect of the present invention provides An information processing method for executing data reproduction from a recording medium in an information processing device, A virtual file system construction step in which a data processing unit constructs a virtual file system in which a virtual file name is set for a part of the recording data of the recording medium;
- the data processing unit includes a data reproduction step of executing a data reproduction process to which the virtual file system is applied;
- the virtual file system construction step includes For the data set with the virtual file name, Creating a first file name conversion table in which a virtual file name set in the virtual file system is associated with a file name indicating a data recording destination in the recording medium;
- An information processing method is a step of constructing a virtual file system without moving data of the recording medium.
- the third aspect of the present invention provides In an information processing apparatus, a program for executing data reproduction from a recording medium, A virtual file system construction step for causing the data processing unit to construct a virtual file system in which a virtual file name is set for a part of the recording data of the recording medium; A data reproduction step for causing the data processing unit to execute a data reproduction process using the virtual file system;
- the virtual file system construction step includes For the data set with the virtual file name, A first file name conversion table in which a virtual file name set in the virtual file system is associated with a file name indicating a data recording destination in the recording medium is created, and a virtual file is transferred without moving data on the recording medium It is in the program that is the step that builds the system.
- the program of the present invention is a program provided by, for example, a storage medium to an information processing apparatus or a computer system that can execute various program codes. By executing such a program by the program execution unit on the information processing apparatus or the computer system, processing according to the program is realized.
- system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.
- BDMV standard-compliant data is BDMV directory
- BDMV standard non-compliant data for example, 1080 / 60P
- 3D image data is reproduced from media having multiple directories recorded in BDAV or BU directory.
- a virtual file system in which a virtual file name is set for the recorded data in the BDAV or BU directory is constructed and reproduced without moving data to the local storage unit.
- FIG. 1 It is a figure which shows the directory structure as a file management structure of the medium (information recording medium) according to the BDMV standard. It is a figure which shows the directory structure as a file management structure of the medium (information recording medium) according to BDAV specification. It is a figure explaining the example of the difference between a BDMV standard and a BDAV standard. It is a figure explaining a virtual file system (VFS). It is a figure explaining an example of a file name conversion table (manifest file (BUMF)). It is a figure explaining the outline
- VFS virtual file system
- BDMV and BDAV standards [1. Overview of BDMV and BDAV standards]
- the BDMV standard and the BDAV standard are established as application standards for data recording / playback mainly using BD (Blu-ray Disc (registered trademark)).
- BD Blu-ray Disc (registered trademark)
- BDMV is an application standard developed for BD-ROM in which, for example, movie content is recorded in advance.
- BDAV is an application standard developed for use in rewritable BD-RE and BD-R that can be recorded only once.
- FIG. 1 shows a BDMV directory as a data recording configuration recorded on a medium according to the BDMV standard.
- the BDMV standard described below corresponds to the BD-RE3.0 standard, which is one of the BDMV standards that allow data recording processing.
- the BDMV directory has a directory [BDMV] placed under the root [Root] directory.
- BDMV Index file [index. bdmv], Movie object file [MovieObject. bdmv] Is recorded.
- BDMV Playlist directory [PLAYLIST]
- Clip information directory [CLIPINF] Stream directory [STREAM]
- BDJO directory [BDJO] JAR directory [JAR] Is set.
- a playlist file [xxxx. mpls] is set and the clip information directory [CLIPINF] has a clip information file [xxxx. clpi] and the clip AV stream file [xxxx. m2ts] is set.
- the index file, movie object file, and playlist file are management information files applied to the reproduction of data stored in the clip AV stream file. These management information files are also called database files or databases. Details of each file will be described below.
- Index file [index. bdmv] is a management information file for recording data of the entire medium. For example, an index (such as correspondence information between a title and a movie object) is recorded for each title set as a unit of recording data.
- an index file is first read, and the user can specify playback by looking at the title described in the index file.
- Movie object file [MovieObject. bdmv] is a file storing playlist management information.
- a plurality of programs for performing playback processing using various playlists are included.
- a program applied to AV stream reproduction processing and a program applied to menu display processing, for example, are also included.
- [mpls] is a reproduction list that is provided corresponding to the title shown to the user and is composed of at least one or more play items.
- Each play item is reproduction section designation information having a reproduction start point (IN point) and a reproduction end point (OUT point) for a clip.
- Clip information file [xxxx.x] recorded in the clip information directory [CLIPINF].
- clpi] is an AV stream file [xxxx.x] recorded in the stream directory [STREAM].
- the clip information file is a file in which information about a stream necessary for reproducing an actual stream is described.
- AV stream file [xxxx .. recorded in the stream directory [STREAM].
- m2ts] is a file storing a stream recorded in the MPEG2-TS format. Image data is stored in this file.
- BDJO directory [BDJO] and the JAR directory [JAR] for example, various data processing programs and functions to which Java (registered trademark) is applied are stored.
- BDJO BDJO directory
- JAR JAR directory
- a program for setting a virtual file system used in data reproduction processing a program for applying to menu creation and menu display processing, a program for realizing an interactive function at the time of data recording and reproduction, etc. included.
- backup data and directories for recording AACS-related data files such as copyright management information are set in the BDMV directory.
- files storing playback target data such as AV stream files are collectively referred to as stream files.
- an index file, a movie object file, a playlist file, and a clip information file are collectively referred to as management information or a database.
- BDAV directory as a data recording configuration recorded on a medium according to the BDAV standard will be described with reference to FIG.
- the BDAV standard described below corresponds to the BD-RE2.1 standard, which is one standard of BDAV.
- BD-RE2.1 standard which is one standard of BDAV.
- FIG. 2 a directory [BDAV] is placed under the root [Root] directory.
- a playlist file [xxxx. mpls] is set and the clip information directory [CLIPINF] has a clip information file [xxxx. clpi] is set, and the AV stream file [xxxx. m2ts] is set.
- Info file [info. bdav] is a file storing management information of the entire BDAV directory.
- Menu file [menu. tidx], [menu. [tdt1 / tdt2] stores thumbnail images of representative images of the respective AV stream files.
- [Menu. tidx] stores thumbnail management information
- [menu. [tdt1 / tdt2] stores thumbnail images.
- the BDAV standard does not have a function for creating a menu having various information, and for example, is set to perform a simple menu display in which the first image of a video shot by the user is displayed as a thumbnail.
- Menu file [menu. tidx], [menu. [tdt1 / tdt2] manages and stores thumbnail images for this purpose.
- Mark file [mark. tidx], [mark. [tdt1 / tdt2] is a file that manages and stores a thumbnail image corresponding to a mark position that is index information set in an editing process or the like for a user's captured image (AV stream file).
- [Mark. [tidx] stores thumbnail management information
- [mark. [tdt1 / tdt2] stores thumbnail images.
- the playlist directory [PLAYLIST], clip information directory [CLIPINF], and stream directory [STREAM] have substantially the same settings as the BDMV directory described above with reference to FIG.
- a playlist file [xxxxxxxx. rpls] is recorded in the playlist directory [PLAYLIST].
- the clip information directory [CLIPINF] has clip information files
- the stream directory [STREAM] has AV stream files [xxxx. m2ts] is recorded.
- the BDMV directory and the BDAV directory have similar configurations, but the BDMV application standard and the BDAV application standard have different data formats that allow recording and reproduction. There are also significant differences in menu creation and interactive functions. Differences between the BDMV application standard and the BDAV application standard will be described with reference to the table shown in FIG.
- the BDMV application standard has severe restrictions on the data format that can be recorded / reproduced.
- a BDMV application is used for [1080 / 60p image] which is a 1920 ⁇ 1080 pixel HD (High Definition) image of a progressive method, a 3D image as a three-dimensional image, or a 4K ⁇ 2K image of about 4000 ⁇ 2000 pixels.
- the standard does not allow recording and playback.
- the image data format permitted as recording / playback data in the BDMV application standard includes, for example, [1080 / 60i].
- [1080 / 60i] indicates that a 1920 ⁇ 1080 pixel HD (High Definition) image is recorded in an interlaced manner and is recorded and reproduced as 1080 line images as 60 field images per second.
- the BDAV application standard does not have strict restrictions on the data format that can be recorded and reproduced. For example, recording / reproduction of 1080 / 60p images, 3D images, and 4K ⁇ 2K images is allowed.
- the BDMV application standard is based on the movie object file [MovieObject. bdmv] and Java (registered trademark) programs stored in the BDJO and JAR directories are used to create and use highly functional menus with various designs that allow free title setting, for example. be able to.
- the menu screen provided in the BDAV application standard is described above with reference to FIG. 2 [menu. tidx]. [Menu. Only thumbnail images are displayed using [tdt1 / tdt2].
- the BDMV application standard can display and use buttons for various operations using the Java (registered trademark) program stored in the BDJO, JAR directory described above with reference to FIG. It can provide advanced interactive functions. In the BDAV application standard, it is only possible to stop playback of content, and it is not possible to provide a high-level interactive function.
- a device that performs recording / playback processing in accordance with the BDMV application standard is referred to as a BDMV player, a BDMV recorder, or a BDMV (recording / playback) device.
- a device that performs recording / playback processing in accordance with the BDAV application standard is called a BDAV player, a BDAV recorder, or a BDAV (recording / playback) device.
- the BDMV apparatus sets the BDMV directory shown in FIG. 1 to a medium (recording medium) and executes data recording / playback processing.
- the BDMV apparatus sets the BDMV directory shown in FIG. 2 to a medium (recording medium) and records data. Perform playback.
- BDAV application can also execute playback processing functions in accordance with the BDMV application standard.
- Such a device uses a BDAV application during recording / playback processing using a recordable medium such as BD-RE or BD-R, and BDMV when playing back a BD-ROM on which a movie or the like has already been recorded. Processing using an application can be performed.
- the BDAV player, the BDAV recorder, or the BDAV (recording / reproducing) apparatus will be described as an apparatus that can perform both the recording / reproducing process according to the BDAV application standard and the recording / reproducing process according to the BDMV application standard. .
- the BDMV standard and the BDAV standard are standards established by BDA (Blu-ray Disc Association) as described above. For example, [http: // www. blu-raydisc. com /].
- VFS virtual file system
- the virtual file system (VFS) is originally devised to perform reproduction processing by integrating data stored in two different recording media, for example, a disk such as a BD, and a local storage unit such as a hard disk. . That is, one virtual virtual file system (VFS) including data recorded in two storage media is constructed, and a playback application performs playback processing using the virtual file system (VFS).
- the construction and use method of the virtual file system is disclosed in Japanese Patent Application Laid-Open No. 2007-257047 and the like, which is an earlier patent application of the present applicant.
- usage forms of the virtual file system include the following usage forms.
- a foreign movie (main content) is recorded on a disc such as a BD or a DVD
- Japanese subtitle data (sub-content) is downloaded from a server and stored in a hard disk (local storage unit).
- the virtual file system (VFS) is used for a process of simultaneously reproducing these two contents, that is, a movie recorded on a disk as main contents and subtitle data recorded in a local storage unit as sub contents.
- FIG. 4 is a diagram for explaining the generation and playback processing of the virtual file system (VFS) 30 that integrates the storage content of the medium 10 such as BD and DVD and the data stored in the local storage unit 20 such as a hard disk.
- VFS virtual file system
- the application program 50 shown in FIG. 4 is a playback application.
- the application program 50 operates a file recorded on the medium 10 or a file recorded on the local storage unit 20 via the virtual file system (VFS) 30.
- VFS virtual file system
- the virtual file system 30 plays a role of hiding the difference of the recording medium (file system) from the application program 50.
- the application program 50 can operate the files recorded on each recording medium by using the same API without being aware of the difference between the recording media on which the files are recorded.
- the virtual file system (VFS) 30 is generated by, for example, merging the file system of the medium 10 and the file system of the local storage unit 20 when the medium 10 is mounted on the apparatus or when an application program is executed.
- a virtual file system (VFS) 30 is stored in the memory of a playback device that executes the application program 50. Note that the virtual file system (VFS) is updated each time a directory or file recorded in the local storage unit 20 is changed by writing a file or the like.
- the application program 50 performs data access using the virtual directory 41 of the virtual package 40 of the virtual file system (VFS) 30.
- the application program 50 performs the playback process by accessing the data on the assumption that the recording data of the medium 10 and the recording data of the local storage unit 20 are all set in the virtual directory 41 of the virtual package 40.
- the application program 50 can access the data file set in the virtual directory 41 by interpreting the virtual directory 41 of the virtual package 40 as an actual directory set in the medium 10.
- the file name set in the virtual directory 41 is used as path information for data access.
- the file name set in the virtual directory 41 is the file name of the data recorded in the real directory of the medium 10.
- a virtual file name that is assumed to be recorded in the real directory of the medium 10 is set. With this setting, the application program 50 can access all data by interpreting it as recorded on the medium 10.
- the data recorded in the real directory of the medium 10 can be accessed using the file name set in the virtual directory 41 as it is. This is because the file name (path) set for the virtual directory 41 is the same as the file name of the real directory of the medium 10.
- the file name conversion table 70 includes a destination file name (dst_file_name) which is a virtual file name in the virtual directory 41 and a source file name indicating an actual data recording destination, that is, a recording destination (path) in the local storage unit 20. This table has data corresponding to (src_file_name).
- the file name conversion table 70 is called a manifest file (BUMF).
- This file name conversion table (manifest file (BUMF)) 70 is recorded in the local storage unit 20.
- the information processing apparatus performs processing of setting an entry corresponding to the recorded data in the file name conversion table (manifest file (BUMF)) 70 when sub-content such as subtitles is recorded in the local storage unit.
- FIG. 5 shows a configuration example of the file name conversion table (manifest file (BUMF)).
- the file name conversion table (manifest file (BUMF)) is a source file name (src_file_name) indicating a recording destination (path) in the local storage unit 20 and a virtual file name in the virtual directory 41, as shown in FIG. It is set as data in which the destination file name (dst_file_name) is associated.
- the destination file name (dst_file_name) is a file name on the virtual directory 41.
- the application program 50 shown in FIG. 4 performs file access using this destination file name (dst_file_name).
- this destination file name (dst_file_name) is registered in the file name conversion table (manifest file (BUMF)) shown in FIG. 5, the source file name (src_file_name) corresponding to the destination file name (dst_file_name) is acquired. Then, data is acquired from the local storage unit 20 according to the source file name (src_file_name).
- the application program 50 can perform reproduction processing by accessing the data recorded on two different media of the medium 10 and the local storage unit 20 in the same manner as the data recorded on one medium. .
- the reproduction process using the virtual file system (VFS) according to the present invention does not use the local storage unit.
- a virtual file system having one virtual directory that integrates the data set in each directory is constructed and applied to playback processing.
- the local storage unit is not used for the construction process of the virtual file system.
- An information processing apparatus 100 shown in FIG. 6 is loaded with a medium (information recording medium) 110 and executes data recording and reproduction processing.
- the medium 110 is, for example, a BD (Blu-ray Disc (registered trademark)) capable of recording data.
- the medium 110 is not limited to the BD, and may be other media such as a flash memory.
- the medium 110 is a medium such as BD-RE or BD-R that can record data.
- a medium that cannot be additionally written for example, a BD-ROM may be used.
- the information processing apparatus 100 sets the following directories on the medium 110 as shown in FIG. BDMV directory 111, BDAV directory 112, BU directory 113, SEARCHIFATE 114, Set up these directories. This processing is executed by a program stored in a memory in the apparatus by the information processing apparatus.
- the BDMV directory 111 is a directory having the same configuration as described above with reference to FIG.
- the BDAV directory 112 is a directory having the same configuration as described above with reference to FIG.
- the BU directory 113 is a binding unit directory, and is a directory for recording management information and the like necessary for constructing a virtual file system (VFS: Virtual File System).
- the search certificate (CERTIFICATE) directory 114 is a directory for recording information applied to the construction of a virtual file system (VFS) and the creation of a file name conversion table.
- step S11 Processing in the case where the information processing apparatus 100 executes data recording on the medium 110 is shown in step S11.
- step S11 when the recording data is BDMV standard compliant data, processing for recording under the BDMV directory 111 is performed.
- recording data having a format other than BDMV standard data for example, BDMV standard non-compliant data such as 1080 / 60p images, 3D images, 4K ⁇ 2K images as described above, the BDAV directory 112 is recorded. Execute the recording process.
- BDMV standard non-compliant data such as 1080 / 60p images, 3D images, 4K ⁇ 2K images, etc. are referred to as extended data. Even BDMV standard compatible data can be recorded under the BDAV directory.
- the data recording process not only the AV stream file but also the clip information file and the playlist file are created or updated, and the recording process is performed. Furthermore, update processing of database files such as movie object files and index files is also performed as necessary.
- the management information in the BU directory 113 is updated.
- This process is a management information update process required when constructing a virtual file system (VFS) described later.
- VFS virtual file system
- bdmv] and movie object file [MovieObject. bdmv] is updated and recorded in the BU directory 113 according to the data recording. That is, the management information recorded in the BU directory 113 includes management information of all reproduction target data recorded on the medium.
- the information processing apparatus 100 basically executes processing for recording the BDMV standard compliant data under the BDMV directory 111 and records the extended data (BDMV standard non-compliant data) under the BDAV directory 112. Execute the process.
- the information processing apparatus 100 makes it possible to perform reproduction processing by designating both data recorded under the BDMV directory and data set under the BDAV directory from one menu.
- This menu is a menu generated by the BDMV standard.
- the information processing apparatus 100 enables reproduction of data recorded under the BDMV directory and data set under the BDMV directory using an interactive function available in the BDMV standard.
- the menu display and interactive function are the same as those described in the movie object file [MovieObject. bdmv], a BDJO directory [BDJO], and a function provided by, for example, Java (registered trademark) recorded in the JAR directory [JAR].
- these programs could not be used for data recorded under the BDAV directory, but they were recorded under the BDAV directory by using the virtual file system (VFS) set in the configuration of the present invention.
- VFS virtual file system
- menu functions and interactive functions compatible with the BDMV standard can be used.
- step S21 shown in FIG. 6 a process for constructing a virtual file system (VFS) 130 based on the data recorded on the medium 110 is performed. Thereafter, in step S22, reproduction processing using the virtual file system (VFS) 130 is executed.
- VFS virtual file system
- the virtual file system 130 is a virtual file system used by the playback application program executed in the information processing apparatus 100, and includes a virtual package 140 having a directory configuration shown in the figure.
- the information processing apparatus 100 performs data access by constructing a virtual package 140 having the directory configuration shown in the figure on the memory of the information processing apparatus.
- the virtual file system 130 is not constructed to use the storage data of the local storage unit in addition to the media storage data, but is constructed to access all the storage data of the media 110.
- Virtual BDMV directory 141 In the package 140 set in the virtual file system 130, as shown in FIG. Virtual BDMV directory 141, BDAV directory 142, BU directory 143, CERTIFICATE Diretocri 144, These directories are included.
- the virtual BDMV directory 141 in addition to the files set in the BDMV directory 111 that is the real directory of the medium 110, other real directories, that is, files set in the BDAV directory 112 and the BU directory 113 are set as virtual files. Is done. A specific file structure will be described in detail later.
- a playback application of an information processing apparatus that performs playback processing using a virtual file system accesses the virtual BDMV directory 141 and acquires an AV stream file that is playback target data.
- both the BDMV directory 111, which is a real directory of the medium 110, and the AV stream file set in the BDAV directory 112 are set. Furthermore, the management information file set in the BU directory 114 that is the real directory of the medium 110 is also set in the virtual BDMV directory 141.
- the file set in the BDMV directory 111 is set in the virtual BDMV directory 141 with the same file name.
- the data in the BDMV directory 111 and the BU directory 113 are set in the virtual BDMV directory 141 with virtual file names.
- processing for obtaining the actual data storage destination (path information) is performed using the file name conversion table. Details of this processing will be described later.
- the reproduction application of the information processing apparatus 100 does not access the BDAV directory 142 of the virtual file system 130, but accesses the virtual BDMV directory 141, so that all reproduction target data (BDMV and BDAV directories stored in the medium 110 are stored). Settings data) can be accessed and played back.
- BDMV standard non-compliant data recorded under the BDMV directory 111 but also extended data (BDMV standard non-compliant data) 1080 / 60p images, 3D images, 4K ⁇ 2K images, etc., recorded under the BDAV directory 112
- the BDMV standard non-compliant data can be reproduced using the BDMV directory 141 of the virtual file system 130.
- a management information file recorded in the BU directory 113 which is a real directory of the medium 110, for example, an index file [index. bdmv] and movie object file [MovieObject. bdmv] is set.
- the playback application of the information processing apparatus 100 uses an index file set in the virtual BDMV directory 141 [index. bdmv] and movie object file [MovieObject. Reproduction processing is executed by applying management information such as bdmv]. A specific reproduction sequence will be described in detail later.
- FIG. 7 is a diagram for explaining generation and playback processing of a virtual file system (VFS) 130 that integrates data stored in different directories of storage contents of a recording medium 110 such as a BD.
- a virtual file system VFS
- the application program 150 shown in FIG. 7 is a reproduction application executed in the information processing apparatus 100 shown in FIG.
- the application program 150 operates files in different directories recorded on the medium 110 via the virtual file system (VFS) 130.
- VFS virtual file system
- the virtual file system 130 plays a role of hiding directory differences from the application program 150.
- the application program 150 can operate the file recorded on the medium 110 without being aware of the difference in the directory in which the file is recorded.
- the virtual file system (VFS) 130 is constructed using, for example, a medium 110 attached to an apparatus and execution of a program (for example, a Java (registered trademark) program) recorded on the medium 110 as a trigger. A specific construction sequence will be described in detail later with reference to a flowchart.
- the constructed virtual file system (VFS) 130 has a virtual package as shown in the figure, and this is stored in the memory of a playback apparatus that executes the application program 150.
- the application program 150 performs data access using the virtual directory of the virtual package 140 of the virtual file system (VFS) 130.
- the virtual BDMV directory 141 is set not only with the BDMV directory of the medium 110 but also with an AV stream file that is data to be played set in the BDAV directory.
- BDMV standard-compliant data can be recorded in the BDMV directory of the medium 110, but extension data (BDMV standard non-compliant data) such as 1080 / 60p images, 3D images, and 4K ⁇ 2K images cannot be recorded. These extended data (BDMV standard non-compliant data) is recorded in the BDAV directory.
- BDMV directory 141 used in the virtual file system 130, not only BDMV standard compatible data, but also extended data (BDMV standard non-compliant data) such as 1080 / 60p images, 3D images, and 4K ⁇ 2K images are set. Will be.
- extended data BDMV standard non-compliant data
- management information corresponding to these BDMV standard compliant data and extended data is also set in the virtual BDMV directory 141. Therefore, the application program 150 can perform playback processing of BDMV standard compliant data and extended data (BDMV standard non-compliant data) using information set in the virtual BDMV directory 141.
- data storage processing for the local storage unit is unnecessary, and reproduction processing using a virtual file system (VFS) is possible with an apparatus that does not have a local storage unit. Further, it is not necessary to copy the media storage data to the local storage unit, and it is possible to construct a virtual file system (VFS) in a short time and start data reproduction using the virtual file system (VFS). .
- VFS virtual file system
- BDMV directory 201 data according to the BDMV standard and its management information are recorded.
- BDAV directory 202 extension data not corresponding to the BDMV standard and its management information are recorded.
- BU directory 203 are recorded a management information file used when constructing a virtual file system (VFS) and a file name conversion table (manifest file (BUMF)) similar to that described above with reference to FIG. .
- the search certificate (CERTIFICATE) directory 204 stores information applied to the construction of a virtual file system (VFS) and the creation of a file name conversion table.
- the stream file 205 recorded in the BDAV directory 202 and the recorded data 206 in the BU directory 203 are data set under the virtual BDMV directory of the virtual file system (VFS).
- VFS virtual file system
- FIG. 9 shows a virtual package of a virtual file system (VFS).
- the playback application of the information processing apparatus performs playback processing using a virtual directory on the virtual file system.
- FIG. 9 shows the management information file 211.
- Index file [index. bdmv (New)] Movie object file [MovieObject. bdmv (New)]
- These files are originally a part of the recording data 206 of the BU directory 203 of the medium 110 shown in FIG.
- Index file [index. bdmv] and movie object file [MovieObject. bdmv] is also set in the BDMV directory in the directory structure (disc package) of the media, but when performing playback processing using the virtual file system, the index file [index. bdmv (New)] Movie object file [MovieObject. bdmv (New)] Use these.
- index file [index. bdmv (New)] Movie object file [MovieObject. bdmv (New)] Use these.
- Index file [index.index] set in the BDMV directory in the directory structure (disc package) of the media shown in FIG. bdmv] and movie object file [MovieObject. bdmv] includes only management information set in the BDMV directory of the medium.
- the index file [index.] Recorded in the BU directory 203 shown in FIG. bdmv] and movie object file [MovieObject. bdmv] is data including management information related to extension data recorded in the BDAV directory 202 as well as recording data under the BDMV directory 201 of the medium. That is, it is set as data including management information of all reproduction target data recorded on the medium 110.
- the index file of the recording data 206 in the BU directory 203 [Index. bdmv] and movie object file [MovieObject. bdmv] is set as the management information file 211 of the virtual BDMV directory 210 shown in FIG.
- (60p) indicates, for example, that of [1080 / 60p] image data in a progressive format. That is, it indicates that the data is extended data (BDMV standard non-compliant data). As described above, 3D images, 4K ⁇ 2K images, and the like are also non-BDMV standard data, and these data are processed in the same manner.
- the file name set in the virtual file system (VFS) becomes a virtual file name and indicates an actual file recording destination. It will be different from the file name.
- These files are generated by the file name conversion table (manifest file (BUMF)) described above with reference to FIG. 5 and the information processing apparatus 100 that executes the reproduction process during the construction process of the virtual file system (VFS).
- the information is acquired from the medium 110 using the table to be used.
- the file name conversion table (manifest file (BUMF)) is included in the recording data 206 of the BU directory 203 shown in FIG.
- FIG. A file name conversion table generated by the information processing apparatus 100 during the virtual file system (VFS) construction process will be described with reference to FIG.
- FIG. A file name conversion table (BUMF: Binding Unit Manifest file)
- B File name conversion table collected by the playback device from the BD-J program by a file copy command from the BD-J program to the playback device at the time of VFS construction.
- C A file name conversion table generated in the internal memory of the playback device.
- the file name conversion table (BUMF: Binding Unit Unit Manifest file) is the same file name conversion table (BUMF) as described above with reference to FIG.
- This (a) file name conversion table (BUMF) is a table that records file name conversion information for files that are set in the BDAV directory or BU directory and should be set in the virtual BDMV directory of the virtual file system (VFS).
- This (a) file name conversion table (BUMF) is sequentially updated when data is recorded on the medium, and is recorded in the BU directory.
- the file name conversion table (BUMF) shows a recording destination (path) when the local storage unit (BUDA) is assumed as a recording destination.
- (A1) Source file name ( src_file_name) and (a2) the destination file name (dst_file_name), which is a virtual file name in the virtual directory, are set as data associated with each other.
- the destination file name (dst_file_name) is a file name on the virtual directory.
- the source file name (src_file_name) is set as path information indicating a relative storage position under the BU directory.
- FIG. 11 shows a configuration example of the BUDA root directory when a local storage unit (BUDA) is assumed as a recording destination.
- the lower directory of the BUDA directory 250 is an organization directory 251 that is a directory unique to an organization such as a content creation studio, and a disk directory 252 that is a disk unit directory is set further below.
- data 260 including a management information file and the like used when constructing a virtual file system (VFS) is set.
- Organization_ID representing an organization that manufactured a disc such as a BD is [a]
- Disc_ID which is a number for identifying the disc is [b].
- binding unit data (Binding Unit Data) indicating data to be stored in the local storage unit is BUDA. It will be set under / a / b /.
- the file name conversion table (BUMF: Binding Unit Manifest file) recorded in the BU directory 203 shown in FIG. 8 is also a file name conversion table on the premise of processing using the local storage unit.
- update processing such as entry addition of a file name conversion table (BUMF: Binding Unit manifest file) performed in the data recording process is performed assuming a data arrangement configuration in the local storage unit as shown in FIG. Become.
- BUMF Binding Unit Manifest file
- [Organization_ID] and [Disc_ID] information are stored in [id.ID] in the search certificate (CERTIFICATE) directory 204 shown in FIG. bdmv] file.
- the binding unit data area stores a virtual file system (VFS) in which the sub contents are stored in the local storage unit described above with reference to FIG. 4 and integrated with the main contents recorded on the medium (disc).
- VFS virtual file system
- the recording data 260 including the management information file shown in FIG. 11 is individually created for each organization or disk unit such as a content creation studio and recorded in the BUDA directory 250.
- the file name conversion table (manifest file (BUMF)) is set as a configuration in which these directory configurations can be identified as shown in FIG.
- the file name conversion table (BUMF) shown in FIG. 10 (a) is a conventionally used BUMF having the same configuration as described above with reference to FIG. 5, and corresponds to the data recording process for the medium. Are updated sequentially.
- the file name conversion table (BUMF) shown in FIG. 10A is a file name conversion table that assumes that sub-contents are recorded in the local storage unit.
- the file name conversion table (BUMF) shown in FIG. 10A cannot be used directly. For this reason, the tables shown in FIGS. 10B and 10C are used.
- This table is created by the information processing apparatus 100 that constructs a virtual file system (VFS) without using a local storage unit and executes data reproduction processing.
- the information processing apparatus 100 receives a file copy command issued from a program stored in the medium 110, for example, a Java (registered trademark) program (BD-J) stored in the BDJO / JAR directory.
- BD-J registered trademark program
- the table shown in FIG. 10B is created from the included data.
- the BD-J program issues a file copy command to be set in the virtual BDMV directory when constructing the virtual file system.
- the BD-J program issues a copy command for constructing a virtual file system based on the use of the local storage unit described above with reference to FIG.
- the BD-J program includes a part of media storage data, for example, data 206 including an AV stream file 205 set in the BDAV directory 202 and a management information file set in the BU directory 203 described with reference to FIG. Issue a command to copy to the local storage.
- the information processing apparatus of the present invention creates the file name conversion table shown in FIG. 10B by using the file name information included in the copy command without performing data copy processing on the local storage unit. .
- the copy command issued by the BD-J program includes a copy source file name (path information on the medium) for data to be copied and a copy destination file name (path information when the copy destination is assumed to be a local storage unit). Is included.
- This data corresponds to the table data shown in FIG. That is, as shown in FIG. (B1) Copy source file name (path information on the medium) (B2) Copy destination file name (path information when the copy destination is assumed to be a local storage unit) It is correspondence information of these file names.
- the BD-J provides this correspondence information to an information processing apparatus that executes reproduction processing.
- the data 301 shown in FIG. 10B is an entry corresponding to the data 206 under the BU directory 203 in the directory structure (disk package) of the medium shown in FIG. Further, data 302 shown in FIG. 10B is an entry corresponding to the stream file 205 under the BDAV directory 202 shown in FIG.
- copy destination file name (path information when the copy destination is assumed to be a local storage unit) is (a1) source file name (src_file_name) in the file name conversion table (BUMF) shown in FIG. And is set as path information indicating a relative storage position under the BU directory.
- the information processing apparatus creates a file name conversion table shown in FIG. 10C based on these tables (a) and (b) and stores it in the memory of the information processing apparatus.
- “(C) File name conversion table generated in the internal memory of the playback device” shown in FIG. 10C is data corresponding to the following file names.
- (C1) File name requested to be read (file name on VFS virtual package)
- (C2) Actual file name (indicates the path (recording position) on the medium)
- the file name (c1) corresponds to the (a2) destination file name (dst_file_name) of FIG. 10 (a) BUMF.
- the file name (c2) corresponds to the (b1) copy source file name (path information on the medium) in the table shown in FIG.
- the file name conversion table shown in 10 (c) is generated and recorded in the memory.
- the information processing apparatus 100 constructs a virtual file system (VFS) without recording data in the local storage unit, and sets it in the virtual BDMV directory of the virtual file system using the file name conversion table shown in FIG.
- the file (data 211 to 214 shown in FIG. 9) is accessed.
- the file name (c1) shown in FIG. 10C that is, the file name on the virtual package (Virtual Package) of VFS) is used.
- a file name (indicating a path (recording position) on the medium) is acquired, and (c2) data is acquired from the medium using an actual file name.
- the virtual BDMV directory 210 of the virtual file system includes BDJO and JAR directories. Therefore, Java (registered trademark) programs stored in the BDJO and JAR directories can be used for playback processing using the virtual file system. By using this Java (registered trademark) program, it is possible to display menus having various designs. Further, by using a Java (registered trademark) program stored in the BDJO, JAR directory, for example, various control buttons can be displayed and playback processing using an interactive function can be performed.
- the playlist file and clip corresponding to the AV stream file recorded in the BDAV directory are used as the data 206 of the BU directory 203.
- the settings include an information file. These files are also recorded in the BDAV directory 202.
- VFS virtual file system
- a playlist file and clip information file corresponding to the stream file recorded in the BDAV directory 202 may be selected and set in the virtual BDMV directory 210 of the virtual file system (VFS) shown in FIG. With such a setting, it is not necessary to record these files in the BU directory 203.
- VFS virtual file system
- the data reproduction processing sequence in the present embodiment will be described with reference to the flowchart shown in FIG.
- the data reproduction process is executed in the data processing unit of the information processing apparatus.
- the data processing unit has a CPU having an application program execution function.
- the process of each step of the flowchart shown in FIG. 12 will be described.
- step S101 data is read from a BDMV directory of a recording medium such as a BD and data reproduction is started (reproduction of a disk package).
- step S102 the Java (registered trademark) program is executed by automatic selection of the BD-J title in the BDMV directory of the disc package.
- This process is, for example, a process that is automatically executed according to a sequence set in advance as a process at the start of the reproduction process, and is a program (BD-J) recorded in [BDJO] and [JAR] set under the BDMV directory. Is a process of executing.
- [00100.00] recorded in the BDJO directory of the BDMV directory 201 shown in FIG. BD-J title represented by bdjo] is programmed to be executed first.
- the BD-J title may be automatically selected as a FirstPlayBack title set as an initial execution title when a disc is inserted.
- the BD-J object [00100.00] recorded in the BDJO directory shown in FIG. bdjo] is a Java (registered trademark) program under the JAR directory shown in FIG. jar is called, various processing instructions are issued to the playback device, and the following processing is executed.
- step S103 it is determined whether the reproducing apparatus is a conventional apparatus that executes only a conventional BDMV application or an expansion apparatus that can reproduce extended data by constructing a virtual file system (VFS).
- This determination process may be performed by determining a device or a device-installed program by a program (BD-J), or may be determined by using information input by a user.
- step S104 If the playback device is a conventional device that executes only a conventional BDMV application, the process proceeds to step S104, and playback processing is performed for only the data under the BDMV directory recorded on the medium.
- step S105 if the playback device is an extended device capable of playing back extended data by constructing a virtual file system (VFS), the process proceeds to step S105.
- VFS virtual file system
- step S105 by executing the BD-J program, a processing command for copying the AV stream data under the BDAV directory to the local storage unit is issued to the playback device that executes the playback process.
- the data processing unit of the playback apparatus executes the BD-J, which is a program read from the disc, and the playback application in parallel.
- BUDA virtual binding unit data area
- step S106 the playback apparatus acquires the position information (path) of the file designated for copying, and notifies the BD-J of a copy completion notification. Note that the playback apparatus does not actually perform the data copy process for the local storage unit.
- the position information acquired from the BD-J by the playback apparatus by this processing corresponds to the data 302 described above with reference to FIG.
- the information corresponds to the stream file 205 under the BDAV directory 202 in the directory structure (disc package) of the medium shown in FIG. 8, and is shown in FIG. (B1) Copy source file name (path information on the medium) (B2) Copy destination file name (path information when the copy destination is assumed to be a local storage unit)
- B1 Copy source file name path information on the medium
- B2 Copy destination file name path information when the copy destination is assumed to be a local storage unit
- step S107 by executing the BD-J program, a processing command for copying the management information file (including the manifest file) under the BU directory to the local storage unit is issued to the playback device.
- step S108 the playback apparatus acquires the position information (path) of the file designated for copying, and notifies the BD-J of a copy completion notification. Note that the playback apparatus does not actually perform the data copy process for the local storage unit.
- the position information acquired from the BD-J by the playback apparatus by this processing corresponds to the data 301 described above with reference to FIG.
- the information corresponds to the data 206 under the BU directory 203 in the directory structure (disc package) of the medium shown in FIG. 8, and is shown in FIG. (B1) Copy source file name (path information on the medium) (B2) Copy destination file name (path information when the copy destination is assumed to be a local storage unit)
- B1 Copy source file name path information on the medium
- B2 Copy destination file name path information when the copy destination is assumed to be a local storage unit
- step S109 a virtual file system (VFS) construction request is output to the playback device by executing the BD-J program.
- VFS virtual file system
- step S110 the playback processing program (player) of the playback device uses the location information of the file designated for copying by the playback processing program (player) of the playback device, and uses the file name used in the virtual file system. Create a conversion table and notify BD-J that VFS construction is complete.
- the file name conversion table created by the playback apparatus in step S110 is the file name conversion table described above with reference to FIG. That is, it is “(c) a file name conversion table generated in the internal memory of the playback device” shown in FIG. 10C and corresponding data of the following file names.
- C1 File name requested to be read file name on VFS virtual package
- C2 Actual file name (indicates the path (recording position) on the medium)
- the file name (c1) corresponds to the (a2) destination file name (dst_file_name) of FIG. 10 (a) BUMF.
- the file name (c2) corresponds to the (b1) copy source file name (path information on the medium) in the table shown in FIG.
- the information processing apparatus acquires the file name conversion table (BUMF) shown in FIG. 10A from the recorded data in the BU directory 203 of the media directory described with reference to FIG. Further, the table shown in FIG. 10B is acquired from the BD-J in the processing of steps S105 to S108.
- BUMF file name conversion table
- step S110 the BD-J is notified of the completion of the virtual file system (VFS) construction.
- VFS virtual file system
- step S111 playback processing is executed using the BDMV directory in the virtual package set in the virtual file system (VFS).
- VFS virtual file system
- the index file [index.index.] Set in the virtual BDMV directory 210 described above with reference to FIG. bdmv] and movie object file [MovieObject. Playback processing using bdmv] is performed.
- This index file [index. bdmv] and movie object file [MovieObject. bdmv] is accessed by the file name conversion table of FIG. That is, the index file [index.index] as management information set in the BU directory 203 which is the real directory shown in FIG. bdmv] and movie object file [MovieObject. bdmv].
- the index file [index. bdmv] and movie object file [MovieObject. Playback processing using bdmv] is performed.
- management information of all data recorded in the BDMV directory 201 and the BDAV directory 202 shown in FIG. 8 is registered.
- a reproduction process using the management information as index information for the reproduction data is performed.
- the menu is displayed by one program in [bdmv].
- information for accessing all data recorded in the BDMV directory and the BDAV directory is registered. Therefore, all of the BDMV standard data and the extended data (BDMV standard non-compliant data) can be reproduced using one menu.
- the virtual file system includes the BDJO and JAR directories set in the virtual BDMV directory 210.
- the Java (registered trademark) program stored in the BDJO, JAR directory can be used.
- this Java (registered trademark) program it is possible to display menus having various designs.
- various control buttons can be displayed and a reproduction process using an interactive function can be performed.
- Example 2 An example in which data recording / reproduction is performed without setting a BDAV directory on a recording medium will be described.
- An information processing apparatus 100 shown in FIG. 13 is loaded with a medium (information recording medium) 110 and executes data recording and reproduction processing.
- the medium 110 is, for example, a BD (Blu-ray Disc (registered trademark)) capable of recording data.
- the medium 110 is not limited to the BD, and may be other media such as a flash memory.
- the information processing apparatus 100 includes a local storage unit 120 configured by, for example, a hard disk.
- the medium 110 is a medium such as BD-RE or BD-R that can record data.
- a medium that cannot be additionally written such as a BD-ROM, may be used.
- the information processing apparatus 100 stores media 110.
- This processing is executed by a program that the information processing apparatus holds in a memory in the apparatus.
- the second embodiment does not use the BDAV directory.
- the BDMV directory 301 is a directory having the same configuration as described above with reference to FIG.
- the BU directory 302 is a binding unit directory, and is a directory for recording management information and the like necessary for constructing a virtual file system (VFS) described later.
- an AV stream file that is extended data (BDMV standard non-compliant data) is also recorded in the BU directory 302. All clip information files and playlist files corresponding to these AV stream files are also recorded.
- a search certificate (CERTIFICATE) directory 303 stores information applied to the construction of a virtual file system (VFS) and creation of a file name conversion table.
- step S201 Processing in the case where the information processing apparatus 100 executes data recording on the medium 110 is shown in step S201.
- the recording data is BDMV standard compliant data
- processing for recording under the BDMV directory 301 is performed.
- recording data having a format other than the data corresponding to the BDMV standard for example, extension data (BDMV standard non-compliant data) such as the 1080 / 60p image, 3D image, 4K ⁇ 2K image as described above, Processing to be recorded under the directory 302 is executed.
- extension data BDMV standard non-compliant data
- the management information in the BU directory 302 is updated.
- This process includes a management information update process required when constructing a virtual file system (VFS) described later.
- VFS virtual file system
- the information processing apparatus 100 basically executes processing for recording the BDMV standard-compliant data under the BDMV directory 301 and uses the BU directory for the extended data (BDMV standard non-compliant data). The process of recording under 302 is executed.
- the information processing apparatus 100 enables playback processing by designating both data recorded under the BDMV directory 301 and data set under the BU directory 302 from one menu.
- This menu can be generated according to the BDMV standard.
- both the data recorded under the BDMV directory 301 and the data set under the BU directory 302 can be played back using the interactive function available in the BDMV standard.
- step S251 a process of constructing a virtual file system (VFS) 130 based on the data recorded on the medium 110 is performed. Thereafter, in step S252, reproduction processing using the virtual file system (VFS) 130 is executed.
- VFS virtual file system
- the virtual file system 130 is a virtual file system used by the playback application program executed in the information processing apparatus 100, and includes a virtual package 140 having a directory configuration shown in the figure.
- the information processing apparatus 100 performs data access by constructing a virtual package 140 having the directory configuration shown in the figure on the memory of the information processing apparatus.
- the virtual file system 130 is not used to access the storage data of the local storage unit, but is constructed to access all the storage data of the medium 110.
- the virtual file system directory is Virtual BDMV directory 141, BU directory 143, CERTIFICATE Diretocri 144, It is.
- the files set in the BU directory 303 are set as virtual files.
- a playback application of an information processing apparatus that performs playback processing using a virtual file system accesses the virtual BDMV directory 141 and acquires an AV stream file that is playback target data.
- the application accesses the BDAV directory 142 of the virtual file system 130. Instead, all the reproduction target data stored in the medium 110 can be accessed and reproduced.
- the specific playback sequence is substantially the same as the processing according to the flow of FIG. 12 described in the first embodiment. However, the process of step S105 in the flow of FIG. 12 is changed to a process for the BU directory instead of the BDAV directory.
- FIG. BDMV directory 301 A specific example of the directory structure of the medium 110 in this embodiment is shown in FIG. BDMV directory 301, BU directory 302, SEARCHIFICATE directory 303, It is the composition which has.
- BDMV directory 301 data according to the BDMV standard and its management information are recorded.
- BU directory 302 a management information file used for constructing a virtual file system (VFS) and the aforementioned file name conversion table (manifest file (BUMF)) are recorded.
- a search certificate (CERTIFICATE) directory 303 stores information applied to the construction of a virtual file system (VFS) and creation of a file name conversion table.
- the data 304 composed of the stream file and management information recorded in the BU directory 302 is set under the virtual BDMV directory of the virtual file system (VFS).
- VFS virtual file system
- FIG. 15 shows the management information file 311.
- Index file [index. bdmv (New)] Movie object file [MovieObject. bdmv (New)]
- These files are originally recorded data 304 in the BU directory 302 of the medium 110 shown in FIG.
- Index file [index. bdmv] and movie object file [MovieObject. bdmv] is also set in the BDMV directory in the media directory structure (disc package), but when using the virtual file system, the index file [index. bdmv] and movie object file [MovieObject. bdmv].
- Index file set in the BDMV directory in the directory structure (disc package) of the media [index. bdmv] and movie object file [MovieObject. bdmv] includes only management information set in the BDMV directory of the medium.
- index file [index.] Of the recording data 304 in the BU directory 302 shown in FIG. bdmv] and movie object file [MovieObject. bdmv] is set as data including management information related to extension data recorded in the BU directory 302 as well as recording data under the BDMV directory 301 of the medium.
- the files 211 to 214 shown in the virtual package of the virtual file system (VFS) in FIG. 15 are obtained from the medium 110 using the file name conversion table described above with reference to FIG. Is done.
- processing can be performed without setting the BDAV directory in the medium.
- the index file [index.index] which is the management information set in the BU directory is the same as in the first embodiment described above.
- bdmv] and movie object file [MovieObject. Playback processing using bdmv] is performed.
- management information management information of all data recorded in the BDMV directory and the BU directory is registered.
- reproduction process a reproduction process using the management information as index information for the reproduction data is performed.
- the menu is displayed by one program in [bdmv]. Information for accessing all data recorded in the BDMV directory and the BU directory is registered in the menu. Therefore, all of the BDMV standard data and the extended data (BDMV standard non-compliant data) can be reproduced using one menu.
- the virtual file system also includes a BDJO and JAR directory set in the BDMV directory as shown in FIG. Accordingly, the Java (registered trademark) program stored in the BDJO, JAR directory can be used. By using this Java (registered trademark) program, it is possible to display menus having various designs. Further, by using the Java (registered trademark) program, for example, various control buttons can be displayed and a reproduction process using an interactive function can be performed.
- FIG. 16 is a block diagram illustrating a configuration example of the information processing apparatus 400 according to an embodiment of the present invention.
- the information processing apparatus 400 is an apparatus that performs at least one of data recording and data reproduction on the medium 410. Specifically, for example, a recording / reproducing apparatus, a player apparatus, a recorder apparatus, a video camera, a PC, or the like is used.
- a disk type medium is shown as the medium 410, but the medium is not limited to the disk type medium, and may be a medium such as a flash memory.
- the information processing apparatus 400 includes a data processing unit (recording / playback control unit) 401, a memory 402, an input unit 403, an output unit 404, and a media interface 405.
- the data processing unit 401 has a CPU having a program execution function for executing various data processing programs. For example, an application program for performing data recording / playback processing is executed. For example, the process according to the flowchart described with reference to FIG. 12 is executed.
- the memory 402 includes a RAM, a ROM, and the like, and is used as a storage area for application programs executed in the data processing unit 401.
- the memory 402 is also used as an application parameter and work area, and is also used as a buffer area for media recording data.
- the input unit 403 is, for example, a user operation unit, and various inputs such as data recording or reproduction instruction input are performed. Note that the input unit 403 includes a remote controller, and remote controller operation information can also be input.
- the output unit 404 is an image or audio output unit configured by a display, a speaker, and the like.
- the media interface 405 is an interface applied to data recording / playback processing using the media 410.
- data is written to the medium 410, and data is read from the medium 410.
- the series of processes described in the specification can be executed by hardware, software, or a combined configuration of both.
- the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run.
- the program can be recorded in advance on a recording medium.
- the program can be received via a network such as a LAN (Local Area Network) or the Internet and installed on a recording medium such as a built-in hard disk.
- the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary.
- the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.
- BDMV standard-compliant data is a BDMV directory
- BDMV standard non-compliant data for example, 1080 / 60P and 3D image data are recorded in a BDAV or BU directory.
- a virtual file system in which a virtual file name is set for the recorded data in the BDAV or BU directory is constructed and reproduced without moving the data to the local storage unit.
Abstract
Description
BDAVは、例えば、ビデオカメラなどでユーザが撮影した映像を記録し再生するためなどに多く利用される規格である。
BDAVには、BDMVのようなインタラクティブ機能や多様なデザインのメニュー作成、表示処理を実現するプログラムは無く、ボタン表示処理などの機能も無い。BDAV規格の提供するメニューは、サムネイル画像からなる簡易的な一覧データである。BDMV規格において提供される多様なデザインのメニューやインタラクティブ機能を利用したい場合は、記録再生装置側のプログラムを利用することになる。すなわち、例えばレコーダやプレーヤ側に組み込まれた機能を利用するしかない。
記録メディアからのデータ再生処理を行うデータ処理部を有し、
前記データ処理部は、
前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築し、
構築した仮想ファイルシステムを適用したデータ再生処理を実行する構成であり、
前記データ処理部は、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成し、
前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築する情報処理装置にある。
情報処理装置において、記録メディアからのデータ再生を実行する情報処理方法であり、
データ処理部が、前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築する仮想ファイルシステム構築ステップと、
前記データ処理部が、前記仮想ファイルシステムを適用したデータ再生処理を実行するデータ再生ステップを有し、
前記仮想ファイルシステム構築ステップは、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成し、
前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築するステップである情報処理方法にある。
情報処理装置において、記録メディアからのデータ再生を実行させるプログラムであり、
データ処理部に、前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築させる仮想ファイルシステム構築ステップと、
前記データ処理部に、前記仮想ファイルシステムを適用したデータ再生処理を実行させるデータ再生ステップを有し、
前記仮想ファイルシステム構築ステップは、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成させ、前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築させるステップであるプログラムにある。
1.BDMV規格とBDAV規格の概要
2.従来型の仮想ファイルシステム(VFS)を利用した再生処理について
3.本発明の一実施例に係る仮想ファイルシステム(VFS)を利用した再生処理について
4.BDAVディレクトリを設定しない処理例(実施例2)
5.情報処理装置の構成例について
まず、既存のBDMV規格およびBDAV規格の概要について説明する。前述したように、BDMV規格およびBDAV規格は、主にBD(Blu-ray Disc(登録商標))を利用したデータ記録再生のアプリケーション規格として策定されたものであるが、記録メディア(記録媒体)としてはBDに限らず、フラッシュメモリなど、その他のメディアを利用したデータ記録再生にも適用可能なアプリケーション規格である。
BDAVは書き換え可能なBD-REや、一回のみ記録可能なBD-Rで利用することを目的に開発されたアプリケーション規格である。
インデックスファイル[index.bdmv]、
ムービーオブジェクトファイル[MovieObject.bdmv]
が記録される。
さらにBDMVディレクトリ[BDMV]の下位ディレクトリとして、
プレイリストディレクトリ[PLAYLIST]、
クリップ情報ディレクトリ[CLIPINF]、
ストリームディレクトリ[STREAM]、
BDJOディレクトリ[BDJO]、
JARディレクトリ[JAR]、
が設定される。
インフォファイル[info.bdav]、
メニューファイル[menu.tidx],[menu.tdt1/tdt2]
マークファイル[mark.tidx],[mark.tdt1/tdt2]
が記録される。
さらにBDAVディレクトリ[BDAV]の下位ディレクトリとして、
プレイリストディレクトリ[PLAYLIST]、
クリップ情報ディレクトリ[CLIPINF]、
ストリームディレクトリ[STREAM]、
が設定される。
メニューファイル[menu.tidx],[menu.tdt1/tdt2]は、各AVストリームファイルの代表画のサムネイル画像を格納する。[menu.tidx]がサムネイル管理情報を格納し、[menu.tdt1/tdt2]がサムネイル画像を格納している。
BDAV規格では、BDMV規格と違い、様々な情報を持つメニューの作成機能がなく、例えばユーザの撮影した映像の先頭画像をサムネイルとして表示する簡易的なメニュー表示を行う設定としている。メニューファイル[menu.tidx],[menu.tdt1/tdt2]はこのためのサムネイル画像を管理、格納している。
プレイリストディレクトリ[PLAYLIST]には、プレイリストファイル[xxxxx.rpls]が記録される。
クリップ情報ディレクトリ[CLIPINF]には、クリップ情報ファイル、ストリームディレクトリ[STREAM]には、例えばMPEG2-TS形式で記録されたAVストリームファイル[xxxxx.m2ts]が記録される。
BDMVアプリケーション規格と、BDAVアプリケーション規格の差異について、図3に示す表を参照して説明する。
BDMVアプリケーション規格は、記録再生できるデータ形式の制限が厳しい。例えば、プログレッシブ方式の1920×1080画素のHD(High Definition)画像である[1080/60p画像]や、3次元画像としての3D画像,あるいは約4000×2000画素の4K×2K画像については、BDMVアプリケーション規格では記録再生が許容されない。
[1080/60i]は、1920×1080画素のHD(High Definition)画像をインタレース方式で、1秒間に60枚のフィールド画像として1080ラインの記録再生を行うことを示している。
BDMVアプリケーション規格は、先に図1を参照して説明したムービーオブジェクトファイル[MovieObject.bdmv]に含まれるプログラムや、BDJO,JARディレクトリに格納されるJava(登録商標)プログラムを利用して、例えば自由なタイトル設定を可能とし様々なデザインを持つ高機能なメニューを作成して利用することができる。
BDAVアプリケーション規格において提供されるメニュー画面は、先に図2を参照して説明した[menu.tidx].[menu.tdt1/tdt2]を利用したサムネイル画像の表示のみである。
BDMVアプリケーション規格は、先に図1を参照して説明したBDJO,JARディレクトリに格納されるJava(登録商標)プログラムを利用して様々な操作用のボタンの表示、利用が可能であり、高度なインタラクティブ機能を提供できる。
BDAVアプリケーション規格では、コンテンツの再生停止を実行できる程度であり、高度なインタラクティブ機能の提供はできない。
このような機器は、BD-REやBD-Rなどの記録可能なメディアを利用した記録再生処理に際しては、BDAVアプリケーションを利用し、既に映画などが記録されたBD-ROMを再生する場合はBDMVアプリケーションを利用した処理を行うことができる。
本発明の情報処理装置では、BDMV規格において記録再生が許容されないデータを、BDMVディレクトリ以外のディレクトリに記録し、再生時には仮想ファイルシステム(VFS:Virtual File System)を構築してBDMVの再生機構を利用して再生を行う。
BDMVディレクトリ111、
BDAVディレクトリ112、
BUディレクトリ113、
サーチフィケート(CERTIFICATE)114、
これらのディレクトリの設定を行う。この処理は情報処理装置が装置内のメモリに保持するプログラムによって実行する。
BDAVディレクトリ112は先に図2を参照して説明したと同様の構成を有するディレクトリである。
サーチフィケート(CERTIFICATE)ディレクトリ114は、仮想ファイルシステム(VFS)の構築やファイル名変換テーブルの作成に適用する情報を記録するディレクトリである。
ステップS11に示すように、記録データがBDMV規格対応データである場合は、BDMVディレクトリ111下に記録する処理が行なわれる。また、BDMV規格対応データ以外の形式を持つデータ、例えば先に説明したような1080/60p画像,3D画像,4K×2K画像などのBDMV規格非対応データを記録する場合は、BDAVディレクトリ112下に記録する処理を実行する。なお、以下において、1080/60p画像,3D画像,4K×2K画像などのBDMV規格非対応データを拡張データと呼ぶ。なお、BDMV規格対応データであっても、BDAVディレクトリ下に記録することは可能である。
仮想BDMVディレクトリ141、
BDAVディレリクトリ142、
BUディレクトリ143、
CERTIFICATEディレトクリ144、
これらのディレクトリが含まれる。
(a)メディアのディレクトリ構成(ディスクパッケージ)[図8]
(b)仮想ファイルシステム(VFS)の仮想パッケージ[図9]
これらのデータ構成例を示している。
BDMVディレクトリ201、
BDAVディレクトリ202、
BUディレクトリ203、
サーチフィケート(CERTIFICATE)ディレクトリ204、
を持つ。
BDAVディレクトリ202にはBDMV規格に非対応の拡張データおよびその管理情報が記録される。
BUディレクトリ203には、仮想ファイルシステム(VFS)構築に際して利用される管理情報ファイルと、先に図5を参照して説明したと同様のファイル名変換テーブル(マニフェストファイル(BUMF))が記録される。
サーチフィケート(CERTIFICATE)ディレクトリ204には、仮想ファイルシステム(VFS)の構築やファイル名変換テーブルの作成に適用する情報が格納される。
図9に管理情報ファイル211として示す、
インデックスファイル[index.bdmv(New)]
ムービーオブジェクトファイル[MovieObject.bdmv(New)]
これらのファイルは、元々、図8に示すメディア110のBUディレクトリ203の記録データ206の一部である。
インデックスファイル[index.bdmv(New)]
ムービーオブジェクトファイル[MovieObject.bdmv(New)]
これらを利用する。
これらは、図8に示す実ディレクトリのBUディレクトリ203の記録データ205である。
プレイリストファイル[00001.mpls]212、
クリップ情報ファイル[01010.clpi](60p)213、
クリップ情報ファイル[01011.clpi](60p)213、
これらのファイルは、図8に示すディスクパッケージのBUディレクトリ203の記録データ206に対応する。
また、
AVストリームファイル[01010.m2ts](60p)214、
AVストリームファイル[01011.m2ts](60p)214、
これらのファイルは、図8に示すディスクパッケージのBDAVディレクトリ202のストリームファイル205に対応する。
(a)ファイル名変換テーブル(BUMF:Binding Unit Manifest file)
(b)VFS構築時における、BD-Jプログラムから再生装置に対するファイルコピー命令により、BD-Jプログラムから再生装置が収集するファイル名変換テーブル
(c)再生装置の内部メモリに生成するファイル名変換テーブル
これら(a)~(c)の3つのテーブルを示している。
その下位に仮想ファイルシステム(VFS)構築に際して利用される管理情報ファイル等からなるデータ260が設定される。
(b1)コピー元ファイル名(メディア上のパス情報)
(b2)コピー先ファイル名(コピー先をローカル記憶部に想定した場合のパス情報)
これらのファイル名の対応情報である。
BD-Jは、この対応情報を再生処理を実行する情報処理装置に提供する。
図10(c)に示す「(c)再生装置の内部メモリに生成するファイル名変換テーブル」は、以下のファイル名の対応データである。
(c1)読み込み要求されるファイル名(VFSの仮想パッケージ(Virtual Package)上のファイル名)
(c2)実際のファイル名(メディア上のパス(記録位置)を示す)
(c2)のファイル名は、図10(b)に示すテーブルの(b1)コピー元ファイル名(メディア上のパス情報)に対応する。
ステップS102において、ディスクパッケージのBDMVディレクトリのBD-Jタイトルの自動選択により、Java(登録商標)プログラムが実行される。この処理は、例えば再生処理開始時の処理として予め設定されたシーケンスに従って自動実行される処理であり、BDMVディレクトリ下に設定された[BDJO],[JAR]に記録されたプログラム(BD-J)を実行する処理である。
(b1)コピー元ファイル名(メディア上のパス情報)
(b2)コピー先ファイル名(コピー先をローカル記憶部に想定した場合のパス情報)
これらのファイル名の対応情報を取得する。
(b1)コピー元ファイル名(メディア上のパス情報)
(b2)コピー先ファイル名(コピー先をローカル記憶部に想定した場合のパス情報)
これらのファイル名の対応情報を取得する。
(c1)読み込み要求されるファイル名(VFSの仮想パッケージ(Virtual Package)上のファイル名)
(c2)実際のファイル名(メディア上のパス(記録位置)を示す)
(c2)のファイル名は、図10(b)に示すテーブルの(b1)コピー元ファイル名(メディア上のパス情報)に対応する。
次に、実施例2として、記録メディアにBDAVディレクトリを設定せずにデータ記録再生を行う実施例について説明する。
さらに、情報処理装置100は、例えばハードディスクなどによって構成されるローカル記憶部120を持つ。
BDMVディレクトリ301、
BUディレクトリ302、
サーチフィケート(CERTIFICATE)303、
これらのディレクトリの設定を行う。この処理は情報処理装置が装置内のメモリに保持するプログラムによって実行される。
先に図6を参照して説明した実施例1と異なり、実施例2では、BDAVディレクトリは利用しない。
BUディレクトリ302は、バインディングユニットディレクトリであり、後述する仮想ファイルシステム(VFS:Virtual File System)を構築する際に必要とする管理情報などを記録するためのディレクトリである。
本実施例2では、このBUディレクトリ302に、拡張データ(BDMV規格非対応データ)であるAVストリームファイルも記録する。これらのAVストリームファイルに対応するクリップ情報ファイルやプレイリストファイルも全て記録する。
サーチフィケート(CERTIFICATE)ディレクトリ303は、仮想ファイルシステム(VFS)の構築やファイル名変換テーブルの作成に適用する情報が格納される。
ステップS201に示すように、記録データがBDMV規格対応データである場合は、BDMVディレクトリ301下に記録する処理が行なわれる。また、BDMV規格対応データ以外の形式を持つデータ、例えば先に説明したような1080/60p画像,3D画像,4K×2K画像などの拡張データ(BDMV規格非対応データ)を記録する場合は、BUVディレクトリ302下に記録する処理を実行する。
仮想BDMVディレクトリ141、
BUディレクトリ143、
CERTIFICATEディレトクリ144、
である。
図14に示す(a)メディアのディレクトリ構成(ディスクパッケージ)は、
BDMVディレクトリ301、
BUディレクトリ302、
サーチフィケート(CERTIFICATE)ディレクトリ303、
を持つ構成である。
BUディレクトリ302には、仮想ファイルシステム(VFS)構築に際して利用される管理情報ファイルと、前述のファイル名変換テーブル(マニフェストファイル(BUMF))が記録される。
サーチフィケート(CERTIFICATE)ディレクトリ303には、仮想ファイルシステム(VFS)の構築やファイル名変換テーブルの作成に適用する情報が格納される。
図15に管理情報ファイル311として示す、
インデックスファイル[index.bdmv(New)]
ムービーオブジェクトファイル[MovieObject.bdmv(New)]
これらのファイルは、元々、図14に示すメディア110のBUディレクトリ302の記録データ304である。
プレイリストファイル[00001.mpls]312、
クリップ情報ファイル[01010.clpi](60p)313、
クリップ情報ファイル[01011.clpi](60p)313、
AVストリームファイル[01010.m2ts](60p)314、
AVストリームファイル[01011.m2ts](60p)314、
これらのファイルが、図14に示すディスクパッケージのBUディレクトリ302の記録データ304に対応する。
次に、上述した記録再生処理を実行する情報処理装置の構成例について図16を参照して説明する。図16は、本発明の一実施例に係る情報処理装置400の構成例を示すブロック図である。情報処理装置400は、メディア410に対するデータ記録、またはデータ再生の少なくともいずれかの処理を行う装置である。具体的には例えば、記録再生装置、プレーヤ装置、レコーダ装置、ビデオカメラ、PCなどの装置である。
20 ローカル記憶部
30 仮想ファイルシステム(VFS)
40 仮想パッケージ
41 仮想ディレクトリ
50 アプリケーションプログラム
70 ファイル名変換テーブル(BUMF)
100 情報処理装置
110 メディア(情報記録媒体)
111 BDMVディレクトリ
112 BDAVディレクトリ
113 BUディレクトリ
114 CERTIFICATEディレクトリ
130 仮想ファイルシステム(VFS)
140 仮想パッケージ
141 仮想BDMVディレクトリ
142 BDAVディレクトリ
143 BUディレクトリ
144 CERTIFICATEディレクトリ
201 BDMVディレクトリ
202 BDAVディレクトリ
203 BUディレクトリ
204 CERTIFICATEディレクトリ
210 仮想BDMVディレクトリ
250 BUDAディレクトリ
251 オーガニゼーション(Organization)ディレクトリ
252 ディスクディレクトリ
260 データ
301 BDMVディリクトリ
302 BUディレクトリ
303 CERTIFICATEディレクトリ
400 情報処理装置
401 データ処理部
402 メモリ
403 入力部
404 出力部
405 メディアインタフェース
410 メディア
Claims (11)
- 記録メディアからのデータ再生処理を行うデータ処理部を有し、
前記データ処理部は、
前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築し、
構築した仮想ファイルシステムを適用したデータ再生処理を実行する構成であり、
前記データ処理部は、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成し、
前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築する情報処理装置。 - 前記データ処理部は、
前記記録メディアに設定された第1アプリケーション規格に対応するデータを記録する第1ディレクトリの設定データと、前記第1ディレクトリ以外のディレクトリの設定データを1つの仮想ディレクトリに設定した仮想ファイルシステムを構築し、
構築した仮想ファイルシステムを適用したデータ再生処理を実行する構成であり、
前記データ処理部は、
前記第1ディレクトリ以外のディレクトリの設定データについて、
前記仮想ファイルシステムに設定したファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成し、
前記第1ディレクトリ以外のディレクトリの設定データのデータ移動を行なうことなく仮想ファイルシステムを構築する請求項1に記載の情報処理装置。 - 前記データ処理部は、
前記第1ディレクトリ以外のディレクトリの設定データをローカル記憶部に格納する処理命令であるデータコピー命令に含まれるコピー対象データのファイル名を取得して、前記第1ファイル名変換テーブルを作成する請求項2に記載の情報処理装置。 - 前記データコピー命令は、前記記録メディアに記録されたプログラムの実行によって発行されるデータコピー命令である請求項3に記載の情報処理装置。
- 前記データ処理部は、
前記第1ディレクトリ以外のディレクトリの設定データをローカル記憶部に格納して構築する仮想ファイルシステムにおいて利用することを想定して生成される第2のファイル名変換テーブルと、
前記データコピー命令に含まれるコピー対象データのファイル名を利用して、前記第1ファイル名変換テーブルを生成する請求項2に記載の情報処理装置。 - 前記データ処理部は、
前記仮想ファイルシステムに設定される仮想ディレクトリに、再生データの索引情報として利用する管理情報として、前記第1ディレクトリ、および前記第1ディレクトリ以外のディレクトリに設定された全ての再生対象データの管理情報を設定し、該管理情報を利用したデータ再生処理を行う請求項2に記載の情報処理装置。 - 前記データ処理部は、
前記管理情報は、仮想ファイルシステムによる再生処理に適用するインデックスファイル、ムービーオブジェクトファイル、プレイリストファイルまたはクリップ情報ファイルのいずれかを含む管理情報である請求項6に記載の情報処理装置。 - 前記第1アプリケーション規格はBDMV規格であり、前記第1ディレクトリはBDMVディレクトリであり、
前記データ処理部は、
前記第1ディレクトリはBDMVディレクトリに記録された再生対象データと、
前記BDMVディレクトリとは異なるBDAVディレクトリに記録された再生対象データと、
前記BDMVおよびBDAVディレクトリ以外の第3のディレクトリに記録された管理情報を記録データとして設定した仮想BDMVディレクトリを持つ仮想ファイルシステムを構築する請求項2~7いずれかに記載の情報処理装置。 - 前記第1アプリケーション規格はBDMV規格であり、前記第1ディレクトリはBDMVディレクトリであり、
前記データ処理部は、
前記第1ディレクトリはBDMVディレクトリに記録された再生対象データと、
前記BDMVディレクトリとは異なる第2ディレクトリに記録された再生対象データと管理情報を記録データとして設定した仮想BDMVディレクトリを持つ仮想ファイルシステムを構築する請求項2~7いずれかに記載の情報処理装置。 - 情報処理装置において、記録メディアからのデータ再生を実行する情報処理方法であり、
データ処理部が、前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築する仮想ファイルシステム構築ステップと、
前記データ処理部が、前記仮想ファイルシステムを適用したデータ再生処理を実行するデータ再生ステップを有し、
前記仮想ファイルシステム構築ステップは、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成し、
前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築するステップである情報処理方法。 - 情報処理装置において、記録メディアからのデータ再生を実行させるプログラムであり、
データ処理部に、前記記録メディアの記録データの一部に対して仮想ファイル名を設定した仮想ファイルシステムを構築させる仮想ファイルシステム構築ステップと、
前記データ処理部に、前記仮想ファイルシステムを適用したデータ再生処理を実行させるデータ再生ステップを有し、
前記仮想ファイルシステム構築ステップは、
前記仮想ファイル名を設定したデータについて、
前記仮想ファイルシステムに設定した仮想ファイル名と、前記記録メディアにおけるデータ記録先を示すファイル名とを対応付けた第1ファイル名変換テーブルを作成させ、前記記録メディアのデータ移動を行なうことなく仮想ファイルシステムを構築させるステップであるプログラム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/382,700 US20120117128A1 (en) | 2009-07-15 | 2010-06-30 | Information processing apparatus and information processing method, and program |
CN201080030791.2A CN102474583B (zh) | 2009-07-15 | 2010-06-30 | 信息处理装置、信息处理方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-167301 | 2009-07-15 | ||
JP2009167301A JP5418030B2 (ja) | 2009-07-15 | 2009-07-15 | 情報処理装置、および情報処理方法、並びにプログラム |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011007672A1 true WO2011007672A1 (ja) | 2011-01-20 |
Family
ID=43449282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/061160 WO2011007672A1 (ja) | 2009-07-15 | 2010-06-30 | 情報処理装置、および情報処理方法、並びにプログラム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120117128A1 (ja) |
JP (1) | JP5418030B2 (ja) |
CN (1) | CN102474583B (ja) |
WO (1) | WO2011007672A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6134076B2 (ja) * | 2014-09-08 | 2017-05-24 | ソニー株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
TWI683307B (zh) * | 2014-09-08 | 2020-01-21 | 日商新力股份有限公司 | 資訊處理裝置,資訊記錄媒體及資訊處理方法以及程式 |
JP6551423B2 (ja) * | 2015-01-22 | 2019-07-31 | ソニー株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
JP6872098B2 (ja) | 2015-11-12 | 2021-05-19 | ソニーグループ株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
WO2017082175A1 (en) | 2015-11-12 | 2017-05-18 | Sony Corporation | Information processing apparatus, information recording medium, information processing method, and program |
JP6844112B2 (ja) | 2016-03-17 | 2021-03-17 | ソニー株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
CN109478412B (zh) | 2016-07-20 | 2021-07-16 | 索尼公司 | 信息处理设备、信息处理方法和程序 |
CN109690674B (zh) | 2016-09-08 | 2021-05-11 | 索尼公司 | 信息处理装置、信息处理方法和程序 |
KR102344751B1 (ko) | 2016-11-10 | 2021-12-30 | 소니그룹주식회사 | 정보 처리 장치, 정보 기록 매체 및 정보 처리 방법, 그리고 프로그램 |
EP3579232B1 (en) | 2017-02-01 | 2022-08-03 | Sony Group Corporation | Information processing device, information processing method, and program |
CN110462735B (zh) | 2017-03-24 | 2021-09-17 | 索尼公司 | 信息处理设备、信息记录介质、信息处理方法和程序 |
CN108668145B (zh) * | 2017-03-30 | 2021-01-15 | 华为技术有限公司 | 一种内容分发方法及装置 |
JP7215415B2 (ja) | 2017-05-31 | 2023-01-31 | ソニーグループ株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
CN110663250B (zh) * | 2017-06-01 | 2021-12-14 | 索尼公司 | 信息处理设备、信息记录介质和信息处理方法 |
JP2020014118A (ja) | 2018-07-18 | 2020-01-23 | ソニー株式会社 | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006100879A1 (ja) * | 2005-03-18 | 2006-09-28 | Sony Corporation | 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム |
WO2008099647A1 (ja) * | 2007-02-16 | 2008-08-21 | Panasonic Corporation | 再生装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200707417A (en) * | 2005-03-18 | 2007-02-16 | Sony Corp | Reproducing apparatus, reproducing method, program, program storage medium, data delivery system, data structure, and manufacturing method of recording medium |
JP2007257047A (ja) * | 2006-03-20 | 2007-10-04 | Sony Corp | 情報処理装置および情報処理方法、プログラム格納媒体、プログラム、データ構造、並びに、記録媒体の製造方法 |
JP4770650B2 (ja) * | 2006-09-09 | 2011-09-14 | ソニー株式会社 | 情報処理装置および情報処理方法並びにコンピュータ・プログラム |
JP5406044B2 (ja) * | 2007-12-17 | 2014-02-05 | パナソニック株式会社 | 個別販売に用いられる記録媒体、記録装置、再生装置、それらの方法 |
US20100260020A1 (en) * | 2009-04-14 | 2010-10-14 | Sony Corporation | Information processing apparatus, information processing system, information processing method, and program |
-
2009
- 2009-07-15 JP JP2009167301A patent/JP5418030B2/ja not_active Expired - Fee Related
-
2010
- 2010-06-30 CN CN201080030791.2A patent/CN102474583B/zh not_active Expired - Fee Related
- 2010-06-30 WO PCT/JP2010/061160 patent/WO2011007672A1/ja active Application Filing
- 2010-06-30 US US13/382,700 patent/US20120117128A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006100879A1 (ja) * | 2005-03-18 | 2006-09-28 | Sony Corporation | 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム |
WO2008099647A1 (ja) * | 2007-02-16 | 2008-08-21 | Panasonic Corporation | 再生装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5418030B2 (ja) | 2014-02-19 |
CN102474583A (zh) | 2012-05-23 |
US20120117128A1 (en) | 2012-05-10 |
CN102474583B (zh) | 2014-12-24 |
JP2011023071A (ja) | 2011-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5418030B2 (ja) | 情報処理装置、および情報処理方法、並びにプログラム | |
US8051100B2 (en) | Recording medium, recording device, and playback device for use in individual sales and method therefor | |
US20090003172A1 (en) | Playback device, recording device, disc medium, and method | |
US20060153021A1 (en) | Method and apparatus for reproducing data from recording medium using local storage | |
WO2010106745A1 (ja) | アプリケーション実行装置 | |
US7668844B2 (en) | Recording medium, and method and apparatus for reproducing data from the recording medium | |
WO2010007757A1 (ja) | 再生装置、再生方法、プログラム | |
US20070041712A1 (en) | Method and apparatus for reproducing data, recording medium, and method and apparatus for recording data | |
US20080063369A1 (en) | Method and apparatus for reproducing data, recording medium, and method and apparatus for recording data | |
KR20070122136A (ko) | 정보 처리 장치, 및 정보 처리 방법, 및 컴퓨터프로그램 | |
US20070025697A1 (en) | Recording medium, method and apparatus for reproducing data, and method and apparatus for recording data | |
US8625398B2 (en) | Information processing device, information recording medium, information processing method, and program | |
JP2009104751A (ja) | データ変換方法、およびデータ変換装置、データ記録装置、データ再生装置、並びにコンピュータ・プログラム | |
KR20070122155A (ko) | 정보 처리 장치, 및 정보 처리 방법, 및 컴퓨터·프로그램 | |
WO2010116986A1 (ja) | 情報処理装置、および情報処理方法、並びにプログラム | |
US20070025706A1 (en) | Method and apparatus for reproducing data, recording medium, and method and apparatus for recording data | |
US20070025699A1 (en) | Recording medium, method and apparatus for reproducing data, and method and apparatus for recording data | |
JP2009505327A (ja) | 記録媒体、データ再生方法及び再生装置並びにデータ記録方法及び記録装置 | |
WO2010116985A1 (ja) | 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム | |
KR20080033433A (ko) | 데이터 재생을 위한 방법 그리고 장치, 기록 매체, 그리고데이터 기록을 위한 방법 그리고 장치 | |
JP2009050015A (ja) | 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム | |
RU2383946C2 (ru) | Способ и устройство для воспроизведения данных, записанных на носителе записи, используя локальный накопитель | |
JP4636158B2 (ja) | 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム | |
US20080056679A1 (en) | Recording medium, method and apparatus for reproducing data, and method and apparatus for recording data | |
KR20070120000A (ko) | 데이터를 기록하는 방법, 장치 및 기록매체 그리고재생방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080030791.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10799732 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13382700 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10799732 Country of ref document: EP Kind code of ref document: A1 |