JP2007501485A - Information recording medium, reproducing apparatus and method thereof - Google Patents

Abstract

An information recording medium capable of reproducing audio data on the Internet together with corresponding moving image data, and a reproducing apparatus and method thereof are disclosed. The moving image data stored in the information recording medium, the audio data acquired from a source other than the information recording medium, the reader that reads the audio mapping data, and the mapping relationship between the moving image data and the audio data included in the audio mapping data are represented. A mapping processing unit that processes information and indicates the correspondence between moving image data and audio data according to the content thereof, a data decoder that decodes moving image data and audio data, and a moving image decoded according to the content of audio mapping data A data output unit that outputs both data and corresponding decoded audio data.

Description

  The present invention relates to an information recording medium capable of reproducing audio data obtained from a source other than the information recording medium together with corresponding moving image data, and a reproducing apparatus and method thereof.

  An information recording medium such as a conventional DVD device stores moving image data and audio data together and reproduces them together. Since the audio data is stored together with the information recording medium, it cannot be changed to other data thereafter.

  FIG. 1 is a conceptual diagram showing a case where a plurality of audio data are connected to one moving image data in DVD reproduction. In order to play back audio data in various national languages (English, Korean, Spanish, etc.) for video data generated and saved in a certain country, information on audio data recorded in multiple languages is used. They must be stored together on a recording medium. However, after producing and selling a recording medium including moving image data, it may be necessary to reproduce audio data recorded in another language together. In addition, for video data, if additional explanation audio including descriptions of movie producers, directors, camera technicians, etc. is produced, an information recording medium that already contains video data is provided separately to the purchased user. There is a need.

  In such a case, the conventional information recording medium has a problem that audio data outside the information recording medium cannot be reproduced by being linked with moving image data included in the information recording medium.

  A technical problem to be solved by the present invention is to provide an information recording medium capable of reproducing audio data on the Internet together with corresponding moving image data.

  Another technical problem to be solved by the present invention is to provide a reproducing apparatus and method capable of reproducing audio data on the Internet related to moving image data included in an information recording medium together with corresponding moving image data.

  An information recording medium for achieving the object includes moving image data and audio mapping data representing a mapping relationship between the moving image data and audio data acquired from the Internet, and the audio data is represented by the audio mapping data. It is preferable that the video data is reproduced together with the corresponding part.

  A playback device for achieving the above-mentioned objects includes a reader for reading moving image data stored in an information recording medium, audio data acquired from the Internet, and audio mapping data, the moving image data included in the audio mapping data, and the Processing the information representing the mapping relationship with the audio data, and according to the content, a mapping processing unit for instructing the correspondence between the moving image data and the audio data, a data decoder for decoding the moving image data and the audio data, It is preferable that a data output unit that outputs both the decoded moving image data and the decoded audio data corresponding to the decoded moving image data according to the contents of the audio mapping data.

  A reproduction method for achieving the above-mentioned objects includes a step of reading moving image data stored in an information recording medium, a step of reading audio mapping data representing a mapping relationship between the moving image data and audio data on the Internet, and the audio Reading audio data on the Internet mapping data mapping to the video data, and reproducing both the video data and the audio data corresponding to the video data according to the content of the audio mapping data; It is desirable to include.

  Hereinafter, an information recording medium, a reproducing apparatus and a method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

  A recording medium such as a conventional DVD disk does not provide a function that allows audio data existing outside the medium to be linked and reproduced with video data stored on the medium. The present invention proposes a structure of a recording medium that can read audio data outside the medium and reproduce it at the corresponding part, and a reproducing apparatus and method thereof, when reproducing moving image data stored in the recording medium.

  FIG. 2 is a schematic block diagram of a playback apparatus according to the present invention. Referring to FIG. 2, the playback apparatus according to the present invention preferably includes a reader 100, a data decoder 120, a data output unit 140, a mapping processing unit 160, and a markup language analyzer 180.

  The reader 100 reads moving image data, audio data, and various data necessary for reproduction thereof from an information recording medium or a source other than an information recording medium such as the Internet.

  The data decoder 120 decodes the moving image data and the audio data 2 read from the reader 100.

  The data output unit 140 outputs the decoded moving image data and the audio data 20 together as audio mapping data.

  The mapping processing unit 160 processes the audio mapping data 4 and instructs the audio data to be read by the reader 100 (31), and instructs the data output unit 140 about the correspondence between the moving image data and the audio data (30). In order to reproduce both moving image data and audio data, mapping between moving image data and audio data is necessary. In a DVD recording medium that is an existing recording medium, there is a 1: 1 correspondence between moving image data and audio data, and they are multiplexed with one file structure. In order to reproduce audio data acquired from a source other than an information recording medium such as the Internet together with moving image data stored in the recording medium, information indicating a mapping relationship between them is required. In the playback apparatus and method, audio mapping data is used to represent the mapping relationship between moving image data and audio data. The audio mapping data may be stored together in an information recording medium in which moving image data is stored, or may be distributed on the Internet after the information recording medium is manufactured.

  When the audio mapping data read from the reader 100 is in the form of a markup language document, the markup language analyzer 180 analyzes the data and sends address information 41 for reading the data to the reader 100, or a mapping processing unit The mapping information 40 is sent to 160. Markup language documents are created in script languages, Java (registered trademark) languages, as well as documents created in markup languages such as HTML (Hypertext Markup Language) and XML (Extensible Markup Language). The source code is a generic term for documents linked or inserted, and is used to cover files linked to markup language documents.

  FIG. 3 is a detailed block diagram showing a preferred embodiment of a playback apparatus according to the present invention. Referring to FIG. 3, it can be seen that the data read by the reader 100 is moving image data, audio data, audio mapping data, audio list data, and a markup language document.

  In FIG. 3, DVD data is shown as an example of moving image data. A DVD disc that is a recording medium for DVD data has a recording structure of a specific format.

  FIG. 4 shows the logical structure of the DVD disc directory. Referring to FIG. 4, a video manager (VMG) in which header information about the entire video title is recorded is stored on the DVD disc, and three video title sets VTS # 1, VTS # 2, and VTS are stored. # 3 is stored. The VMG includes VMG information (VMGI) in which control data is recorded, a video object menu video object set (VMGM_VOBS) linked to the VMG, and VMGI backup (BUP) data. VMGM_VOBS may not be included. The video title set (VTS) includes video title set information (VTSI) in which header information is recorded, a video object (VTSM_VOBS) for displaying a menu screen, a video object (VTSTT_VOBS) constituting a video title, and a backup of the VTSI. (BUP) data is included. VTSM_VOBS may not exist.

  FIG. 5 is a diagram showing a logical structure of a video object set. A video object set (VOBS) constituting video data is composed of K video objects (VOB). VOB is composed of M cells. Each cell is composed of L video object units (VOBU). Each VOBU has one navigation pack (NV_PCK) necessary for playback or search of the VOBU, and an audio pack (A_PCK), a video pack (V_PCK), and a sub-picture pack (SP_PCK) constituting the VOBU are multiplexed. Therefore, it is based on the MPEG structure of the ISO-13818 standard.

  FIG. 6 is a diagram illustrating the structures of VMGI and VTSI. Referring to FIG. 6, VMGI and VTSI are used to reproduce user information about a title, chapter, or part of a title (part of title: PTT) and reproduction information for presentation to reproduce a DVD disc. Including. Using the VMGI and VTSI information, the user can access the title, and can access the chapter or the PTT among the approached titles. When the playback device plays back a title, it searches for the playback structure PGC (program chain) and PG (program), and searches for the corresponding cell (C) for playback. Each cell reproduces the VOBU moving image information indicated by the cell on the logical structure in correspondence with the cell which is a logical recording unit of the disc.

  The audio data on the Internet may be read at a time, or the corresponding audio data may be read simultaneously with the reproduction of the moving image using an audio streaming service.

  FIG. 7 is a conceptual diagram of Internet audio streaming. Recently, Internet audio streaming services for transmitting audio data over the Internet have been developed. Through such an audio streaming service, a user can download audio data on the Internet and listen to desired music and sound.

  FIG. 8 is a flowchart showing an embodiment of the reproducing method according to the present invention. Referring to FIG. 8, in order to reproduce both moving image data and audio data on the Internet, first, moving image data stored in an information recording medium is read (S500), audio mapping data is read (S510), and audio mapping is performed. After reading the audio data on the Internet which is mapped to the moving image data with the data (S520), the corresponding audio data is reproduced together with the moving image data being reproduced (S530). The order of S500 and S510 may be changed, and the audio mapping information may be read once and then applied to a plurality of moving image data. When reading audio data using an audio streaming service, S520 and S530 may be performed simultaneously.

  The audio mapping data may be stored in the information recording medium, or may be read on another information recording medium, a remote location, another source, or the Internet. The source for reading the audio mapping data is not limited to the above, and various sources are possible.

  FIG. 9 is a flowchart showing an embodiment of a reproduction method when audio mapping data on the Internet is read. Referring to FIG. 9, after reading the audio mapping data using the address set in the playback apparatus or using the address stored in the information recording medium (S600), the read audio mapping data is read. Analyzing (S610), and then playing back the DVD video, the part to be played back and the mapped audio data are played back together (S620). At this time, the case where the address is set in the playback device refers to the case where the address of the audio mapping data is directly input from the user or the address previously read from the information recording medium is used.

  FIG. 10 is a flowchart of a reproducing method showing a case where audio mapping data is read by executing a command stored in an information recording medium. The playback apparatus stores predetermined instruction words in the form of a markup language document. Such a markup language document is read and analyzed by a markup language analyzer (180 in FIG. 2). Can execute instructions. The instruction word has a format such as LoadAudioMap (url). If this is executed, the audio mapping data is read with the Internet address indicated by the variable url (S700). The read audio mapping data is analyzed (S 710), and then the reproduced portion and the mapped audio data are reproduced together while reproducing the DVD video (S 720).

  FIG. 11 is a conceptual diagram showing the structure of an embodiment of audio mapping data. Referring to FIG. 11, it can be seen that information about the language and use of audio data is included in addition to the information about the corresponding video moving image data and audio data. As shown in FIG. 4, the DVD disk is composed of VMG and a plurality of VTSs. The VMG includes VMGM_VOBS, and the VTS includes VTSM_VOBS and a plurality of VTSTT_VOBS. Each VOBS is a group of cells that is a logical recording unit of the information recording medium. It can be seen that the audio mapping data in FIG. 11 maps audio data to each VOBS that is a group of cells. In the audio mapping data, not only audio data can be associated with each cell group, but audio data may be associated with each cell. In FIG. 11, the structure of audio data may directly represent audio data, or may be audio metadata representing the position and type of audio data.

  Such audio mapping data can be described in the form of a markup language document. A part of the audio mapping information in FIG. 11 is expressed as follows in the XML description method.

<Audio-mapping-data type = dvd-video lang = xx caption = yy>
<Dvd-video>
<Vmg>
<Vmgm_vobs>
<Audio vob_idn = 1 href = http: //movie_audio.com/a.acp/>
</ Vmgm_vobs>
</ Vmg>
<Vts>
<Vtsidn = 1>
<Vtsm_vobs>
<Audio vob_idn = 1 href = http: //movie_audio.com/b.acp/>
</ Vtsm_vobs>
</ Vts>
</ Dvd-video>
</ Audio-mapping-data>
The moving image data may be stored in units of cells or may be stored in units of video clips. FIG. 12 is a diagram showing the structure of moving image data stored in units of video clips. A video clip is a recording unit of moving image data recorded in a continuous space. Such a clip is stored in the form of an AV (Audio / Video) stream obtained by compressing moving image data, but the characteristic information of the compressed moving image data for reproducing the compressed AV stream is clip information (clip information). ) Are recorded together. The clip information includes an entry point map in which attributes of moving images of each clip and position information of entry points that can be randomly accessed in a certain section unit are recorded. In the case of MPEG, which is often used as a moving image compression technique, this entry point is the position of an I picture for compressing an intra video, and this entry point map is not a sequential replay among the replays. This is used when searching for a point where time has passed and playing back. That is, when moving image data is stored in units of video clips, it is necessary to reproduce audio data corresponding to a part of the moving image data.

  FIG. 12 shows both a playlist and a play item as a playback structure of moving image data stored in units of clips. A playlist is a basic unit of reproduction, and a plurality of playlists are stored in the information recording medium. One playlist is formed by connecting a plurality of play items. The play item has a form in which the playback start time and end time of the part in the clip are specified corresponding to all or part of the clip. Therefore, when playing a single playlist, a plurality of clip portions can be played back continuously, or a portion of a clip can be played back. If audio data is mapped to such a playlist, the corresponding audio data can be reproduced together when a part of a clip or a part of a plurality of clips corresponding to the playlist is reproduced.

  As an XML description method, audio mapping data for mapping audio data to moving image data in such a playlist unit is represented as follows.

<Audio-mapping-data type = dvd-video lang = xx caption = yy>
<Dvd-video>
<Audio playlist = 1 playitem = 1 href = http: //movie.com/c.acp/>
<Audio playlist = 1 playitem = 1-9 href = http: //movie.com/d.acp/>
</ Dvd-video>
</ Audio-mapping-data>
FIG. 13 is a diagram illustrating a method in which a user selects a desired language and usage from an audio list and reproduces audio data associated therewith together with moving image data. When there is a plurality of audio data recorded in each language for each moving image data, the user can select a desired language. In addition, while playing a video, you can choose whether to listen to recorded lines or to listen to production-related additional explanation audio such as a director.

  FIG. 14 is a diagram showing an example of audio list data when the user selects a desired language. When the audio list data is associated with the address of the corresponding audio mapping data for each language and the user selects a desired language, the audio mapping data corresponding to the language is read from the playback device.

  FIG. 15 is a diagram showing an example of audio list data when a user selects a desired use. The audio list data is configured so that speech audio or additional explanation audio can be selected, and audio mapping data is linked for each application.

  By using such audio list data, the user can reproduce the audio data recorded in various languages, and can provide the user with audio tracks for various purposes.

  The audio list data is created in the form of a markup language document and stored in an information recording medium, which is analyzed and executed by a markup language analyzer.

  Although the present invention has been described with reference to the embodiments shown in the drawings, it is intended to be exemplary only, and various modifications and equivalent other embodiments may be made by those skilled in the art. You will understand. Therefore, the true technical protection scope of the present invention must be determined by the technical idea of the claims.

  According to the information recording medium and the reproducing apparatus and method thereof according to the present invention, audio data on the Internet is mapped and reproduced with moving image data stored in the information recording medium using audio mapping data, and audio list data is reproduced. By utilizing the language and usage, the user can select audio data that is not stored in the information recording medium, and audio data having various languages and usage can be provided to the user.

FIG. 3 is a conceptual diagram showing a case where a plurality of audio data are connected to one moving image data in DVD reproduction. 1 is a schematic block diagram of a playback device according to the present invention. FIG. 3 is a detailed block diagram illustrating a preferred embodiment of a playback device according to the present invention. It is a figure which shows the logical structure of a DVD disc directory. It is a figure which shows the logical structure of a video object set. It is a figure which shows the structure of VMGI and VTSI. It is a conceptual diagram of internet audio streaming. 5 is a flowchart showing an embodiment of a reproduction method according to the present invention. It is a flowchart which shows one Example of the reproduction | regeneration method in the case of reading the audio mapping data on the internet. It is a flowchart of the reproducing | regenerating method which shows the case where the command word preserve | saved at the information recording medium is performed and audio mapping data is read. It is a conceptual diagram which shows the structure of one Example of audio mapping data. It is a figure which shows the structure of the moving image data preserve | saved per video clip. It is a figure which shows the method for a user to select the desired language and use from an audio list, and to reproduce the audio data relevant to it with moving image data. FIG. 6 is a diagram illustrating an example of audio list data when a user selects a desired language. FIG. 6 is a diagram illustrating an example of audio list data when a user selects a desired application.

Claims (36)

In an information recording medium,
Video data and
Audio mapping data representing a mapping relationship between the video data and audio data obtained from a source other than the information recording medium,
The information recording medium, wherein the audio data is reproduced together with a corresponding portion of the moving image data by the audio mapping data. The moving image data is stored in a plurality of cells that are logical recording units of the information recording medium,
The information recording medium according to claim 1, wherein the audio mapping data corresponds to the audio data in cell units of the moving image data. The moving image data is stored as a plurality of cells that are logical recording units of the information recording medium,
The information recording medium according to claim 1, wherein the audio mapping data corresponds to the audio data in units of cell groups. The video data is stored in units of video clips,
The information recording medium according to claim 1, wherein the audio mapping data corresponds to the audio data in units of clips of the moving image data. The video data is stored in units of video clips,
The information recording medium according to claim 1, wherein the audio mapping data maps the audio data to a part of a clip of the moving image data. The video data is stored in units of video clips,
The information recording medium according to claim 1, wherein the audio mapping data maps the audio data to a playlist corresponding to a part of a clip of the moving image data or a part of a plurality of clips.   The information recording medium according to claim 1, wherein the audio mapping data is defined by a markup language document that describes information about the moving image data and an external source address of the corresponding audio data. A reader for reading moving image data stored in an information recording medium, audio data from a source other than the information recording medium, and audio mapping data;
Processing mapping data representing a mapping relationship between the moving image data and the audio data included in the audio mapping data, and a mapping processing unit for instructing a correspondence relationship between the moving image data and the audio data according to the content;
A data decoder for decoding the moving image data and audio data;
A playback apparatus comprising: a data output unit that outputs both the decoded moving image data and the decoded audio data corresponding to the decoded moving image data according to the contents of the audio mapping data.   9. The reproducing apparatus according to claim 8, wherein the reader reads audio mapping data from a source other than the information recording medium using an address of audio mapping data input by a user.   9. The reproducing apparatus according to claim 8, wherein the reader reads audio mapping data from a source other than the information recording medium using an address of audio mapping data stored in the information recording medium. The reader further reads a markup language document stored in the information recording medium;
A markup language analyzer that analyzes an instruction defined in the markup language document and sends an address of audio mapping data to the reader or sends audio mapping data to the mapping processing unit; The playback apparatus according to claim 8.   9. The reproducing apparatus according to claim 8, wherein the reader reads audio mapping data stored in an information recording medium. Reading the video data stored in the information recording medium;
Reading audio mapping data representing a mapping relationship between the moving image data and audio data obtained from a source other than the information recording medium;
Reading audio data that the audio mapping data maps to the moving image data from a source other than the information recording medium;
Playing back both the moving image data and the audio data mapped to the moving image data according to the contents of the audio mapping data.   14. The reproduction method according to claim 13, wherein the step of reading the audio mapping data reads the audio mapping data from a source other than the information recording medium using an address input by a user.   14. The reproduction method according to claim 13, wherein the step of reading the audio mapping data reads the audio mapping data from a source other than the information recording medium using an address stored in the information recording medium. The step of reading the audio mapping data includes:
Reading a markup language document stored in the information recording medium;
The method according to claim 13, further comprising: reading audio mapping data by executing an instruction defined in the markup language document. The step of reading the audio mapping data includes:
Reading audio list information including a plurality of selection items from a source other than the information recording medium to the user, and allowing the user to select one of the audio lists;
The method according to claim 13, further comprising: reading audio mapping data related to an item selected by the user. The step of reading the audio list information is a step of selecting an audio list corresponding to a language desired by the user from among audio lists corresponding to a plurality of languages in which audio data is recorded,
The step of reading audio mapping data related to the item selected by the user is a step of reading audio mapping data related to the language selected by the user.
18. The reproduction method according to claim 17, wherein the step of reading the audio data mapped to the moving image data is a step of reading audio data recorded in a language selected by the user. The step of reading the audio list information is a step of selecting an audio list corresponding to an application desired by a user from audio lists corresponding to different applications.
The step of reading the audio mapping data related to the item selected by the user is a step of reading the audio mapping data related to the use selected by the user,
18. The reproduction method according to claim 17, wherein the step of reading audio data mapped to the moving image data is a step of reading audio data corresponding to a use selected by a user.   The step of reading the audio list information is a step in which the user selects whether to listen to the audio data of the moving image together with the moving image data or to listen to the audio data including the description of the creator of the moving image. The reproduction method according to claim 19. The step of reading the audio list information includes:
Reading a markup language document stored on an information recording medium;
The reproduction method according to claim 17, further comprising: executing the command defined in the markup language document to read the audio list data. The audio data is audio stream data read using an audio streaming service,
The reproducing method according to claim 13, wherein the step of reading audio data mapped to the moving image data and the step of reproducing the moving image data are performed simultaneously.   14. The reproducing method according to claim 13, wherein the step of reading the audio mapping data is a step of reading audio mapping data stored in the information recording medium.   The information recording medium according to claim 1, wherein the source other than the information recording medium is the Internet.   The playback apparatus according to claim 8, wherein the source other than the information recording medium is the Internet.   The reproduction method according to claim 13, wherein the source other than the information recording medium is the Internet. Mapping audio data acquired at a remote location to video data stored in an information recording medium;
And reproducing the audio data together with the moving image data using audio mapping data.   28. The information reproducing method according to claim 27, wherein the audio mapping data is stored in the information recording medium including the moving image data.   The method of claim 27, wherein the audio mapping data is distributed through the Internet after the information recording medium is manufactured.   28. The information reproducing method according to claim 27, wherein the remote location from which the audio data is acquired is the Internet. A reader that reads data from an information recording medium and a remote location, and outputs moving image data, audio data, and mapping data;
A mapping processing unit that processes the mapping data and outputs audio mapping data;
A decoder for decoding the video data and the audio data;
A playback apparatus comprising: a data output unit that plays back the audio data and the moving image data by using the output mapping data.   32. The reproducing apparatus according to claim 31, wherein the reader reads the mapping data using an address input by a user.   32. The reproducing apparatus according to claim 31, wherein the reader reads the mapping data using an address stored in the information recording medium.   32. The playback apparatus according to claim 31, further comprising a markup language analyzer that analyzes a command defined in a markup language document from the information recording medium and provides an address of the mapping data to the reader. .   32. The markup language analyzer according to claim 31, further comprising a markup language analyzer that analyzes an instruction defined in a markup language document from the information recording medium and provides an address of the mapping data to the mapping processing unit. Playback device.   32. The reproducing apparatus according to claim 31, wherein the remote location from which the data is read is the Internet.

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