US20070196079A1 - Method for managing recording and reproduction of multi-dubbed audio stream - Google Patents
Method for managing recording and reproduction of multi-dubbed audio stream Download PDFInfo
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- US20070196079A1 US20070196079A1 US11/785,395 US78539507A US2007196079A1 US 20070196079 A1 US20070196079 A1 US 20070196079A1 US 78539507 A US78539507 A US 78539507A US 2007196079 A1 US2007196079 A1 US 2007196079A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
- H04N5/9265—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation with processing of the sound signal
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—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
- G11B27/036—Insert-editing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/327—Table of contents
- G11B27/329—Table of contents on a disc [VTOC]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
Definitions
- the present invention relates to a method for managing recording and reproduction of a multi-dubbed audio stream corresponding to an A/V stream recorded on a storage medium such as a high-density rewritable optical disc.
- BD-RE Blu-Ray Disc Rewritable
- FIG. 1 illustrates apart of the configuration of an optical disc apparatus such as a video disc recorder (VDR) for recording or reproducing signals recorded on a storage medium such as a BD-RE.
- the optical disc apparatus includes an optical pickup 2 for reading out a signal recorded on a storage medium 1 such as a BD-RE or recording a data stream externally inputted thereto and subjected to a signal processing procedure, a VDR system 3 for reproducing the signal read out by the optical pickup 2 or converting a data stream externally inputted thereto into a data stream to be appropriately recordable, and an encoder 4 for encoding an analog signal externally inputted thereto, and outputting the encoded signal to the VDR system 3 .
- VDR video disc recorder
- the VDR system 3 of the optical disc apparatus having the above mentioned configuration may manage recording of a dubbed audio stream, as an auxiliary audio stream, corresponding to the A/V stream recorded on the BD-RE 1 . This will be described in detail hereinafter.
- FIG. 2 illustrates a linked condition between real play lists and virtual play lists in a rewritable optical disc, for example, a BD-RE.
- A/V streams are sequentially recorded on a BD-RE, for example, the BD-RE 1 of FIG. 1 , in the unit of clips, and managed for recording and reproduction thereof by real play lists containing play control information for reading and reproduction of the A/V streams in the unit of clips and being recorded on the BD-RE 1 , respectively.
- a main A/V stream corresponding to a first clip that is, a first clip main A/V stream (Clip 1 Main A/V Stream)
- a first real play list (Real PlayList 1 ) containing play control information for reading and reproduction of the first clip main A/V stream, as shown in FIG. 2 .
- a dubbed audio stream corresponding to a clip main stream is additionally recorded on the BD-RE 1 as a new clip auxiliary audio stream or a clip dubbed audio stream.
- a dubbed audio stream corresponding to the first clip main stream linked to the first real play list is recorded as a second clip dubbed audio stream (Clip 2 Auxiliary Audio Stream).
- This second clip dubbed audio stream is managed for its recording and reproduction by a second real play list (Real PlayList 2 ).
- a first virtual play list (Virtual PlayList 1 ) associated with the first real play list may include a play item (PlayItem) for a main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the second clip dubbed audio stream linked to the second real play list.
- PlayItem a play item for a main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list
- SubPlayItem sub play item
- the VDR system 3 of the optical disc apparatus can selectively reproduce the second clip dubbed audio stream managed by the second real play list at the request of the user during a reproducing operation thereof in which the first clip main A/V stream managed by the first real play list is read out and reproduced.
- the user can view the video image of the first clip main A/V stream and simultaneously listen to the audio sound of the second clip dubbed audio stream.
- an object of the invention is to provide a method for managing additional recording and reproduction of a multi-dubbed audio stream for a clip-unit main A/V stream recorded on a storage medium such as a high-density rewritable optical disc.
- the present invention provides a method for managing recording of a multi-dubbed audio stream corresponding to a clip-unit main A/V stream, comprising the steps of: producing virtual play lists, the number of which corresponds to the number of dubbed audio streams desired by a user in association with the clip-unit main A/V stream, for reading and reproduction of the dubbed audio streams; and recording common link information, for reading and reproduction of the clip-unit main A/V stream, in the virtual play lists, while recording distinct link information, for reading and reproduction of the dubbed audio streams associated therewith, in the virtual play lists, respectively.
- the present invention provides a method for recording and managing a multi-dubbed audio stream, comprising the steps of: producing and recording a real play list and virtual playlists for reading and reproduction of a clip-unit main A/V stream and a plurality of dubbed audio streams associated with the clip-unit main A/V stream, respectively; and recording management information for searching for and reading out the real play list and the virtual play lists, in an ‘info.dvr’ file included in a ‘VDR’ directory having an order lower than a highest-order root directory in a file structure of a rewritable storage medium.
- the present invention provides a method for managing reproduction of a multi-dubbed audio stream, comprising the steps of: searching for and reading out play list management information about multiple dubbed audio streams, which is recorded in a file, other than play list files, provided in a file structure of a rewritable storage medium; and reading out and reproducing a main A/V stream and multiple dubbed audio streams respectively linked to play lists identified by referring to the play list management information.
- FIG. 1 is a schematic view illustrating a part of the configuration of an optical disc apparatus such as a video disc recorder (VDR);
- VDR video disc recorder
- FIG. 2 is a schematic diagram illustrating a linked condition between real play lists and virtual play lists in a rewritable optical disc, for example, a BD-RE;
- FIG. 3 is a schematic diagram illustrating a linked condition between real play lists and virtual play lists recorded and managed by a method for managing recording and reproduction of multi-dubbed audio stream in accordance with the present invention.
- FIGS. 4 and 5 are schematic diagrams each illustrating the syntax of an ‘info.dvr’ file in which management information about multiple dubbed audio streams is additionally recorded by the multi-dubbed audio stream recording and reproduction managing method according to the present invention.
- the multi-dubbed audio stream recording and reproduction managing method according to the present invention is applicable to the optical disc apparatus having the configuration described hereinbefore in conjunction with FIG. 1 .
- the VDR system 3 of the optical disc apparatus can additionally record multiple dubbed audio streams, desired by the user, corresponding to each of clip-unit A/V streams sequentially recorded on a BD-RE, for example, the BD-RE 1 , in the unit of clips.
- the VDR system 3 can also produce management information for managing recording and reproduction of the multiple dubbed audio streams, so that the multiple dubbed audio streams are managed to be compatible with the file structure and format of the BD-RE 1 .
- a first clip main A/V stream that is, a first clip main A/V stream (Clip 1 Main A/V Stream)
- Real PlayList 1 a first real play list
- a second clip auxiliary audio stream or a second clip dubbed audio stream (Clip 2 Auxiliary Audio Stream), which corresponds to the first clip main A/V stream and is additionally recorded, is managed for its recording and reproduction by a second real play list (Real PlayList 2 ) containing play control information for reading and reproduction of the second clip dubbed audio stream and being recorded.
- a second real play list (Real PlayList 2 ) containing play control information for reading and reproduction of the second clip dubbed audio stream and being recorded.
- the VDR system 3 of the optical disc apparatus produces and records virtual play lists (Virtual PlayList) in order to allow the user to optionally select, edit, and play real play lists recorded and managed in the above mentioned procedure.
- a virtual play list for example, a first virtual play list (Virtual PlayList 1 ) associated with the first real play list, is recorded with a play item (PlayItem) for a main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the second clip dubbed audio stream linked to the second real play list.
- the VDR system 3 may be requested by the user to additionally record another dubbed audio stream corresponding to the first clip main A/V stream.
- the VDR system 3 records the additional dubbed audio stream as a third clip auxiliary audio stream or a third clip dubbed audio stream (Clip 3 Auxiliary Audio Stream).
- a third real play list (Real PlayList 3 ) is produced and recorded which contains play control information for reading and reproduction of the third clip dubbed audio stream.
- a second virtual play list (Virtual PlayList 2 ) is produced and recorded.
- the second virtual play list is recorded with the play item (PlayItem), which is duplicated from the play item of the first virtual play list, for the main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the third clip dubbed audio stream linked to the third real play list.
- the VDR system 3 produces virtual play lists, the number of which corresponds to the number of dubbed audio streams associated with each of clip-unit main A/V streams, for reading and reproduction of the dubbed audio streams.
- the virtual play lists are recorded with a common play item for a main path adapted to read out and reproduce the associated clip-unit main A/V stream and with sub play items for distinct sub paths adapted to read out and reproduce the dubbed audio streams corresponding to the virtual play lists, respectively.
- the real play lists and virtual play lists produced in the above described procedure are recorded and managed as play list files *.rolls and *.vpls in a ‘PLAYLIST’ subdirectory included in the file structure of the BD-RE 1 , respectively.
- play list management information for each multi-dubbed audio stream is also produced for searching and managing all of the play list files. This play list management information is recorded in an ‘info.dvr’ file included in a ‘DVR’ directory having an order lower than a highest-order ‘Root’ directory.
- the play list management information may be recorded in the form of a data block, data_block, in a manufacturer's private data recording area, MakersPrevateData, arranged in the ‘info.dvr’ file for the manufacturer of the BD-RE to optionally record desired diverse information.
- the play list management information recorded in the form of the data block data_block in the manufacturer's private data recording area includes information multi_dub_exit_flag about a flag set in the case of additionally recording multiple dubbed audio streams for each clip-unit main A/V stream, multi-dubbed virtual play list numbers, set_multi_dub_VPL_number, produced and recorded when the flag is set, information ref_RPL_index about an index for referring to the real play list linked to the play item for the main path included in the virtual play lists associated with the multiple dubbed audio streams, information dub_total_VPL_number about the total number of the virtual play lists respectively corresponding to the multiple dubbed audio streams, and information VPL_index[j] about indexes for respective virtual play lists corresponding to the multiple dubbed audio streams.
- the predetermined syntax of the ‘info.dvr’ file is maintained as it is. Also, the predetermined file structure of the BD-RE is maintained as it is.
- the play list management information for each multi-dubbed audio stream may be recorded in a region, other than the manufacturer's private data recording area, provided in the ‘info.dvr’ file, for example, an area between a play list table information (TableOfPlayList) recording area and the manufacturer's private data recording area.
- TableOfPlayList play list table information
- the VDR system 3 searches for and refers to the play list management information about multiple dubbed audio streams additionally recorded in the ‘info.dvr’ file, thereby identifying whether or not there are multiple dubbed audio streams recorded on the BD-RE. If there are multiple dubbed audio streams, then the VDR system 3 identifies virtual play list information for reading and reproduction of the multiple dubbed audio streams, and information about the total number of virtual play lists associated with the multiple dubbed audio streams.
- the VDR system 3 reads out and reproduces a main A/V stream and the multiple dubbed audio streams linked to the identified virtual play lists.
- the VDR system 3 can selectively reproduce the second clip dubbed audio stream managed by the second real play list or the third clip dubbed audio stream managed by the third real play list at the request of the user during a reproducing operation thereof in which the first clip main A/V stream managed by the first real play list is read out and reproduced.
- the user can view the video image of the first clip main A/V stream and simultaneously listen to the audio sound of the second clip dubbed audio stream or the third clip dubbed audio stream.
- the present invention provides a method for managing recording and reproduction of a multi-dubbed audio stream in accordance with the present invention which is capable of additionally recording and managing multiple dubbed audio streams for each clip-unit main A/V stream, and selectively reproducing diverse dubbed audio streams desired by the user.
- the present invention is very useful.
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Abstract
A method and recording medium for managing an A/V stream are discussed. According to an embodiment, the method includes a method for managing a main Audio/Video (A/V) stream on a recording medium, the method comprising: providing a first playlist on the recording medium that links the main A/V stream with a first additional data such that the main A/V stream is reproduced with the first additional data; and providing a second playlist on the recording medium that links the main A/V stream with a second additional data such that the main A/V stream is reproduced with the second additional data.
Description
- This application is a Continuation of co-pending application Ser. No. 10/421,836, filed on Apr. 24, 2003, the entire contents of which are hereby incorporated by reference and for which priority is claimed under 35 U.S.C. § 120.
- 1. Field of the Invention
- The present invention relates to a method for managing recording and reproduction of a multi-dubbed audio stream corresponding to an A/V stream recorded on a storage medium such as a high-density rewritable optical disc.
- 2. Description of the Related Art
- Recently, standardization of new high-density rewritable optical discs has rapidly progressed, for example, BD-RE (Blu-Ray Disc Rewritable), which can store a large quantity of high-quality video and audio data. As a result, products associated with such discs have also been developed. Such products are expected to be commercially available in the near future.
-
FIG. 1 illustrates apart of the configuration of an optical disc apparatus such as a video disc recorder (VDR) for recording or reproducing signals recorded on a storage medium such as a BD-RE. As shown inFIG. 1 , the optical disc apparatus includes anoptical pickup 2 for reading out a signal recorded on astorage medium 1 such as a BD-RE or recording a data stream externally inputted thereto and subjected to a signal processing procedure, aVDR system 3 for reproducing the signal read out by theoptical pickup 2 or converting a data stream externally inputted thereto into a data stream to be appropriately recordable, and anencoder 4 for encoding an analog signal externally inputted thereto, and outputting the encoded signal to theVDR system 3. - The
VDR system 3 of the optical disc apparatus having the above mentioned configuration may manage recording of a dubbed audio stream, as an auxiliary audio stream, corresponding to the A/V stream recorded on the BD-RE1. This will be described in detail hereinafter. -
FIG. 2 illustrates a linked condition between real play lists and virtual play lists in a rewritable optical disc, for example, a BD-RE. A/V streams are sequentially recorded on a BD-RE, for example, the BD-RE 1 ofFIG. 1 , in the unit of clips, and managed for recording and reproduction thereof by real play lists containing play control information for reading and reproduction of the A/V streams in the unit of clips and being recorded on the BD-RE 1, respectively. For example, a main A/V stream corresponding to a first clip, that is, a first clip main A/V stream (Clip 1 Main A/V Stream), is managed for its recording and reproduction by a first real play list (Real PlayList 1) containing play control information for reading and reproduction of the first clip main A/V stream, as shown inFIG. 2 . - Meanwhile, a dubbed audio stream corresponding to a clip main stream is additionally recorded on the BD-RE 1 as a new clip auxiliary audio stream or a clip dubbed audio stream. For example, a dubbed audio stream corresponding to the first clip main stream linked to the first real play list is recorded as a second clip dubbed audio stream (
Clip 2 Auxiliary Audio Stream). This second clip dubbed audio stream is managed for its recording and reproduction by a second real play list (Real PlayList 2). - Also, the
VDR system 3 of the above mentioned optical disc apparatus produces and records virtual play lists in order to allow the user to optionally select, edit, and play real play lists recorded and managed in the above mentioned procedure. As shown inFIG. 2 , such a virtual play list, for example, a first virtual play list (Virtual PlayList 1) associated with the first real play list, may include a play item (PlayItem) for a main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the second clip dubbed audio stream linked to the second real play list. - Accordingly, the
VDR system 3 of the optical disc apparatus can selectively reproduce the second clip dubbed audio stream managed by the second real play list at the request of the user during a reproducing operation thereof in which the first clip main A/V stream managed by the first real play list is read out and reproduced. Thus, the user can view the video image of the first clip main A/V stream and simultaneously listen to the audio sound of the second clip dubbed audio stream. - In rewritable optical discs such as the above mentioned BD-RE, however, there is a limitation in that only one play item and only one sub play item can be recorded in a virtual play list produced and recorded in an editing procedure performed by the user. For this reason, only one dubbed audio stream can be additionally recorded and managed for each of clip main A/V streams sequentially recorded in the unit of clips. As a result, there is a problem in that it is impossible to record and manage several dubbed audio streams desired by the user and to link the dubbed audio streams to one clip main A/V stream. Nevertheless, there is no method capable of efficiently solving this problem.
- Therefore, the present invention has been made in view of this and other limitations, and an object of the invention is to provide a method for managing additional recording and reproduction of a multi-dubbed audio stream for a clip-unit main A/V stream recorded on a storage medium such as a high-density rewritable optical disc.
- In accordance with one aspect, the present invention provides a method for managing recording of a multi-dubbed audio stream corresponding to a clip-unit main A/V stream, comprising the steps of: producing virtual play lists, the number of which corresponds to the number of dubbed audio streams desired by a user in association with the clip-unit main A/V stream, for reading and reproduction of the dubbed audio streams; and recording common link information, for reading and reproduction of the clip-unit main A/V stream, in the virtual play lists, while recording distinct link information, for reading and reproduction of the dubbed audio streams associated therewith, in the virtual play lists, respectively.
- In accordance with another aspect, the present invention provides a method for recording and managing a multi-dubbed audio stream, comprising the steps of: producing and recording a real play list and virtual playlists for reading and reproduction of a clip-unit main A/V stream and a plurality of dubbed audio streams associated with the clip-unit main A/V stream, respectively; and recording management information for searching for and reading out the real play list and the virtual play lists, in an ‘info.dvr’ file included in a ‘VDR’ directory having an order lower than a highest-order root directory in a file structure of a rewritable storage medium.
- In accordance with another aspect, the present invention provides a method for managing reproduction of a multi-dubbed audio stream, comprising the steps of: searching for and reading out play list management information about multiple dubbed audio streams, which is recorded in a file, other than play list files, provided in a file structure of a rewritable storage medium; and reading out and reproducing a main A/V stream and multiple dubbed audio streams respectively linked to play lists identified by referring to the play list management information.
- The above objects, and other features and advantages of the present invention will become more apparent after a reading of the following detailed description when taken in conjunction with the drawings, in which:
-
FIG. 1 is a schematic view illustrating a part of the configuration of an optical disc apparatus such as a video disc recorder (VDR); -
FIG. 2 is a schematic diagram illustrating a linked condition between real play lists and virtual play lists in a rewritable optical disc, for example, a BD-RE; -
FIG. 3 is a schematic diagram illustrating a linked condition between real play lists and virtual play lists recorded and managed by a method for managing recording and reproduction of multi-dubbed audio stream in accordance with the present invention; and -
FIGS. 4 and 5 are schematic diagrams each illustrating the syntax of an ‘info.dvr’ file in which management information about multiple dubbed audio streams is additionally recorded by the multi-dubbed audio stream recording and reproduction managing method according to the present invention. - Now, preferred embodiments of a method for managing recording and reproduction of a multi-dubbed audio stream in accordance with the present invention will be described in detail with reference to the annexed drawings.
- The multi-dubbed audio stream recording and reproduction managing method according to the present invention is applicable to the optical disc apparatus having the configuration described hereinbefore in conjunction with
FIG. 1 . TheVDR system 3 of the optical disc apparatus can additionally record multiple dubbed audio streams, desired by the user, corresponding to each of clip-unit A/V streams sequentially recorded on a BD-RE, for example, the BD-RE 1, in the unit of clips. TheVDR system 3 can also produce management information for managing recording and reproduction of the multiple dubbed audio streams, so that the multiple dubbed audio streams are managed to be compatible with the file structure and format of the BD-RE 1. - For example, as shown in
FIG. 3 , a main A/V streams, sequentially recorded on the BD-RE 1, of a first clip, that is, a first clip main A/V stream (Clip 1 Main A/V Stream), is managed for its recording and reproduction by a first real play list (Real PlayList 1) containing play control information for reading and reproduction of the first clip main A/V stream and being recorded. Also, a second clip auxiliary audio stream or a second clip dubbed audio stream (Clip 2 Auxiliary Audio Stream), which corresponds to the first clip main A/V stream and is additionally recorded, is managed for its recording and reproduction by a second real play list (Real PlayList 2) containing play control information for reading and reproduction of the second clip dubbed audio stream and being recorded. - Also, the
VDR system 3 of the optical disc apparatus produces and records virtual play lists (Virtual PlayList) in order to allow the user to optionally select, edit, and play real play lists recorded and managed in the above mentioned procedure. As described in conjunction withFIG. 2 , such a virtual play list, for example, a first virtual play list (Virtual PlayList 1) associated with the first real play list, is recorded with a play item (PlayItem) for a main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the second clip dubbed audio stream linked to the second real play list. - Meanwhile, under the condition in which the dubbed audio stream corresponding to the first clip main A/V stream, that is, the second clip dubbed audio stream, is additionally recorded, as described above, the
VDR system 3 may be requested by the user to additionally record another dubbed audio stream corresponding to the first clip main A/V stream. In this case, the VDRsystem 3 records the additional dubbed audio stream as a third clip auxiliary audio stream or a third clip dubbed audio stream (Clip 3 Auxiliary Audio Stream). - Also, a third real play list (Real PlayList 3) is produced and recorded which contains play control information for reading and reproduction of the third clip dubbed audio stream. In addition, a second virtual play list (Virtual PlayList 2) is produced and recorded. In this case, the second virtual play list is recorded with the play item (PlayItem), which is duplicated from the play item of the first virtual play list, for the main path adapted to read out and reproduce the first clip main A/V stream linked to the first real play list, and a sub play item (SubPlayItem) for a sub path adapted to read out and reproduce the third clip dubbed audio stream linked to the third real play list.
- That is, the
VDR system 3 produces virtual play lists, the number of which corresponds to the number of dubbed audio streams associated with each of clip-unit main A/V streams, for reading and reproduction of the dubbed audio streams. The virtual play lists are recorded with a common play item for a main path adapted to read out and reproduce the associated clip-unit main A/V stream and with sub play items for distinct sub paths adapted to read out and reproduce the dubbed audio streams corresponding to the virtual play lists, respectively. - The real play lists and virtual play lists produced in the above described procedure are recorded and managed as play list files *.rolls and *.vpls in a ‘PLAYLIST’ subdirectory included in the file structure of the BD-
RE 1, respectively. Also, play list management information for each multi-dubbed audio stream is also produced for searching and managing all of the play list files. This play list management information is recorded in an ‘info.dvr’ file included in a ‘DVR’ directory having an order lower than a highest-order ‘Root’ directory. - The play list management information may be recorded in the form of a data block, data_block, in a manufacturer's private data recording area, MakersPrevateData, arranged in the ‘info.dvr’ file for the manufacturer of the BD-RE to optionally record desired diverse information.
- As shown in
FIG. 5 , the play list management information recorded in the form of the data block data_block in the manufacturer's private data recording area includes information multi_dub_exit_flag about a flag set in the case of additionally recording multiple dubbed audio streams for each clip-unit main A/V stream, multi-dubbed virtual play list numbers, set_multi_dub_VPL_number, produced and recorded when the flag is set, information ref_RPL_index about an index for referring to the real play list linked to the play item for the main path included in the virtual play lists associated with the multiple dubbed audio streams, information dub_total_VPL_number about the total number of the virtual play lists respectively corresponding to the multiple dubbed audio streams, and information VPL_index[j] about indexes for respective virtual play lists corresponding to the multiple dubbed audio streams. - Since the above described play list management information for each multi-dubbed audio stream is recorded in the form of a data block in the manufacturer's private data recording area provided in the ‘info.dvr’ file in accordance with the multi-dubbed audio stream recording and reproduction managing method of the present invention, the predetermined syntax of the ‘info.dvr’ file is maintained as it is. Also, the predetermined file structure of the BD-RE is maintained as it is.
- Alternatively, the play list management information for each multi-dubbed audio stream may be recorded in a region, other than the manufacturer's private data recording area, provided in the ‘info.dvr’ file, for example, an area between a play list table information (TableOfPlayList) recording area and the manufacturer's private data recording area.
- Meanwhile, the
VDR system 3 searches for and refers to the play list management information about multiple dubbed audio streams additionally recorded in the ‘info.dvr’ file, thereby identifying whether or not there are multiple dubbed audio streams recorded on the BD-RE. If there are multiple dubbed audio streams, then theVDR system 3 identifies virtual play list information for reading and reproduction of the multiple dubbed audio streams, and information about the total number of virtual play lists associated with the multiple dubbed audio streams. - Thereafter, the
VDR system 3 reads out and reproduces a main A/V stream and the multiple dubbed audio streams linked to the identified virtual play lists. For example, theVDR system 3 can selectively reproduce the second clip dubbed audio stream managed by the second real play list or the third clip dubbed audio stream managed by the third real play list at the request of the user during a reproducing operation thereof in which the first clip main A/V stream managed by the first real play list is read out and reproduced. Thus, the user can view the video image of the first clip main A/V stream and simultaneously listen to the audio sound of the second clip dubbed audio stream or the third clip dubbed audio stream. - Although the preferred embodiments of the invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and. spirit of the invention as disclosed in the accompanying claims.
- As apparent from the above description, the present invention provides a method for managing recording and reproduction of a multi-dubbed audio stream in accordance with the present invention which is capable of additionally recording and managing multiple dubbed audio streams for each clip-unit main A/V stream, and selectively reproducing diverse dubbed audio streams desired by the user. Thus, the present invention is very useful.
Claims (18)
1. A method for managing a main Audio/Video (A/V) stream on a recording medium, the method comprising:
providing a first playlist on the recording medium that links the main A/V stream with a first additional data such that the main A/V stream is reproduced with the first additional data; and
providing a second playlist on the recording medium that links the main A/V stream with a second additional data such that the main A/V stream is reproduced with the second additional data.
2. The method of claim 1 , further comprising:
selectively reproducing the first and second playlists from the recording medium.
3. The method of claim 1 , wherein the first playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the first additional data, and the second playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the second additional data.
4. The method of claim 1 , further comprising:
providing management information on the recording medium for managing both of the first and second playlists.
5. The method of claim 4 , wherein the management information for both of the first and second playlists is included in a same file on the recording medium.
6. The method of claim 1 , wherein the first and second additional data comprise first and second audio streams, respectively.
7. The method of claim 1 , wherein a number of the playlists corresponds to a number of the additional data.
8. A method for reproducing a main Audio/Video (A/V) stream from a recording medium, the method comprising:
reading playlist management information from the recording medium, said playlist management information including at least a first playlist that links the main A/V stream with a first additional data such that the main A/V stream is reproduced with the first additional data, and a second playlist that links the main A/V stream with a second additional data such that the main A/V stream is reproduced with the second additional data.
9. The method of claim 8 , further comprising:
selectively reproducing the first and second playlists from the recording medium.
10. The method of claim 8 , wherein the first playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the first additional data, and the second playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the second additional data.
11. The method of claim 8 , wherein the playlist management information is included in a same file on the recording medium.
12. The method of claim 8 , wherein the first and second additional data comprise first and second audio streams, respectively.
13. The method of claim 8 , wherein a number of the playlists corresponds to a number of the additional data.
14. A recording medium to be read by a video disc recorder, the recording medium comprising:
a main Audio/Video (A/V) stream; and
playlist management information including at least a first playlist that links the main A/V stream with a first additional data such that the main A/V stream is reproduced with the first additional data, and a second playlist that links the main A/V stream with a second additional data such that the main A/V stream is reproduced with the second additional data.
15. The recording medium of claim 14 , wherein the first playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the first additional data, and the second playlist includes a main path corresponding to the main A/V stream and a sub path corresponding to the second additional data.
16. The recording medium of claim 14 , wherein the playlist management information is included in a same file on the recording medium.
17. The recording medium of claim 14 , wherein the first and second additional data comprise first and second audio streams, respectively.
18. The recording medium of claim 14 , wherein a number of the playlists corresponds to a number of the additional data.
Priority Applications (1)
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US11/785,395 US20070196079A1 (en) | 2002-04-25 | 2007-04-17 | Method for managing recording and reproduction of multi-dubbed audio stream |
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KR10-2002-0022810 | 2002-04-25 | ||
KR1020020022810A KR100880627B1 (en) | 2002-04-25 | 2002-04-25 | Method for managing a multi-dubbed audio stream record and reproduce |
US10/421,836 US7221855B2 (en) | 2002-04-25 | 2003-04-24 | Method for managing recording and reproduction of multi-dubbed audio stream |
US11/785,395 US20070196079A1 (en) | 2002-04-25 | 2007-04-17 | Method for managing recording and reproduction of multi-dubbed audio stream |
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US10/421,836 Continuation US7221855B2 (en) | 2002-04-25 | 2003-04-24 | Method for managing recording and reproduction of multi-dubbed audio stream |
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US11/716,725 Abandoned US20070206927A1 (en) | 2002-04-25 | 2007-03-12 | Method for managing recording and reproduction of multi-dubbed audio stream |
US11/785,395 Abandoned US20070196079A1 (en) | 2002-04-25 | 2007-04-17 | Method for managing recording and reproduction of multi-dubbed audio stream |
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US11/716,725 Abandoned US20070206927A1 (en) | 2002-04-25 | 2007-03-12 | Method for managing recording and reproduction of multi-dubbed audio stream |
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KR100499608B1 (en) * | 2002-05-23 | 2005-07-07 | 엘지전자 주식회사 | Method for dubbing audio on rewritable medium |
JP2005057657A (en) * | 2003-08-07 | 2005-03-03 | Canon Inc | Image processor |
KR100937421B1 (en) * | 2004-01-13 | 2010-01-18 | 엘지전자 주식회사 | Method for managing and reproducing a File information of high density optical disc |
EP1872272A1 (en) * | 2004-12-24 | 2008-01-02 | Koninklijke Philips Electronics N.V. | Method and apparatus for editing program search information |
US8060591B1 (en) | 2005-09-01 | 2011-11-15 | Sprint Spectrum L.P. | Automatic delivery of alerts including static and dynamic portions |
US7653418B1 (en) * | 2005-09-28 | 2010-01-26 | Sprint Spectrum L.P. | Automatic rotation through play out of audio-clips in response to detected alert events |
CN101313363A (en) * | 2005-11-23 | 2008-11-26 | 皇家飞利浦电子股份有限公司 | Method and apparatus for video playing |
US8713191B1 (en) | 2006-11-20 | 2014-04-29 | Sprint Spectrum L.P. | Method and apparatus for establishing a media clip |
US7747290B1 (en) | 2007-01-22 | 2010-06-29 | Sprint Spectrum L.P. | Method and system for demarcating a portion of a media file as a ringtone |
KR101125286B1 (en) * | 2007-03-27 | 2012-03-21 | 삼성전자주식회사 | Method of updating additional data and reproduction apparatus thereof |
JP5999405B2 (en) * | 2011-11-28 | 2016-09-28 | ソニー株式会社 | Information processing apparatus, information processing method, and program |
JP6071742B2 (en) * | 2013-05-16 | 2017-02-01 | 三菱重工業株式会社 | Electrolytic machining tool, electrolytic machining system, and method for manufacturing perforated member |
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US7221855B2 (en) | 2007-05-22 |
US20070206927A1 (en) | 2007-09-06 |
KR20030084231A (en) | 2003-11-01 |
KR100880627B1 (en) | 2009-01-30 |
US20030202774A1 (en) | 2003-10-30 |
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