JP4985891B2 - REPRODUCTION DEVICE, REPRODUCTION METHOD, AND RECORDING METHOD - Google Patents

Description

The present invention, playback apparatus and method, and a recording method, in particular, playback apparatus and method capable of providing video format for 3D display suitable for 3D display of captions and menu buttons, and It relates to a recording method .

  There are various types of displays (hereinafter referred to as 3D displays) having a 3D (3 Dimensional) image display function. There are various types of video formats for 3D display (hereinafter referred to as 3D video formats).

  As a 3D video format, a method using three or more viewpoint images (multi-views), specifically, a 3D video format using a two-dimensional image and a depth image suitable for a so-called lenticular 3D display, for example. (For example, refer nonpatent literature 1).

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  However, there is currently no 3D display video format suitable for 3D display of subtitles and menu buttons.

  The present invention has been made in view of such circumstances, and is intended to provide a 3D video format suitable for 3D display of subtitles and menu buttons.

The first aspect of the reproducing apparatus of the present invention is used for the sub-image 3D (3Dimensional) display comprising a caption or menu button, the unit of a picture of the R image of the L image and the right-eye for the sub-picture left-eye image Data, window position information and size information indicating the display range of the subtitles in each screen of the L image and the R image, and a window ID that is an ID unique to the window, In reproducing the data of the data structure in which the vertical and horizontal sizes of the same window ID in the size information and the size information of the R image are the same, the L image and the L image included in the data image data in the unit of a picture of the R image, and the position information and the size information, and reading unit to read out the window ID If the window ID of the L image and the R image are the same, based on the image data of the position information and the size information and the unit of a picture of the L image of the L image read by the reading unit, The L image to be displayed in a window having the same size in the vertical direction and the horizontal direction as the window in the R image at the position in the screen based on the position information of the L image is output on a screen basis, and the reading unit Based on the read position information and size information of the R image and image data of the R image on a screen basis, the position in the screen based on the position information of the R image and the window in the L image And an output unit that outputs the R image to be displayed in a window having the same size in the horizontal direction and the horizontal direction in units of screens.

  The reproduction method according to the first aspect of the present invention corresponds to the reproduction apparatus according to the first aspect of the present invention described above.

In the first aspect of the present invention, image data in units of screens of an L image for the left eye and an R image for the right eye of the sub image used for 3D (3 Dimensional) display of the sub image including subtitles or menu buttons. , Including position information and size information of a window indicating a display range of the caption in each screen of the L image and the R image, and a window ID which is an ID unique to the window, and the size of the L image When reproducing data having the same data structure in which the vertical and horizontal sizes of the windows having the same window ID are reproduced in the size information of the information and the R image, the L image and the R included in the data are reproduced. image data in the unit of a picture of the image, the positional information and the size information, and the window ID is read out, the L When the window IDs of the image and the R image are the same, the position information of the L image based on the read position information and size information of the L image and image data of the screen of the L image The L image to be displayed in a window having the same size in the vertical and horizontal directions as the window in the R image at the position in the screen based on the image is output and the position of the read R image Based on the information, the size information, and the image data of the R image on a screen basis, the position in the screen based on the position information of the R image has the same size in the vertical and horizontal directions as the window in the L image. wherein R images to be displayed in the window is output in screen units.

According to the recording method of the second aspect of the present invention, the recording apparatus is used for 3D (3 Dimensional) display of a sub-image consisting of subtitles or menu buttons, and the left-eye L image and right-eye R image of the sub-image are used. The image data for each screen is recorded on a recording medium, and the window position information and size information indicating the display range of the subtitles in the respective screens of the L image and the R image, and an ID unique to the window Recording including recording the window ID on the recording medium so that the size in the vertical direction and the horizontal direction represented by the window size information of the same window ID of the L image and the R image is the same. Is the method .

In the second aspect of the present invention, used in the sub-image 3D (3Dimensional) display comprising a caption or menu button, the image data of the unit of a picture of the R image for L image and the right eye for the sub-image left eye The window position information and size information indicating the display range of the subtitles in the respective screens of the L image and the R image and the window ID that is an ID unique to the window are recorded on the recording medium . The L image and the R image are recorded on the recording medium so that the size in the vertical direction and the horizontal direction represented by the window size information of the same window ID is the same .

  According to the present invention, 3D display of subtitles and menu buttons can be performed. In addition, it is possible to provide a video format for 3D display suitable for 3D display of subtitles and menu buttons.

It is a figure which shows the structural example of 1st Embodiment of the disk to which this invention is applied. It is a figure which shows the detailed structural example of an index file. It is a figure which shows the detailed structural example of a movie object file. It is a figure which shows the detailed structural example of a movie object. It is a figure which shows the detailed structural example of a play list file. It is a figure explaining the detailed structural example of a clip information file. It is a figure which shows the detailed structural example of a stream file. It is a figure explaining extraction of a PES packet. It is a figure which shows the detailed structural example of a PES packet. It is a figure which shows the structural example of the display set of caption data. It is a figure which shows the structural example of the display set of menu data. It is a figure which shows the structural example of an epoch. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. It is a block diagram which shows the detailed structural example of the caption production | generation part of FIG. It is a flowchart explaining the reproduction | regeneration processing by the reproducing | regenerating apparatus of FIG. It is a flowchart explaining the 3D graphics production | generation process of FIG. It is a flowchart explaining the detail of the caption production | generation process of FIG. It is a figure which shows the example of the subtitles displayed in 3D on the display part of FIG. It is a figure which shows the structural example of the display set of the caption data in 2nd Embodiment of the disk to which this invention is applied. It is a figure which shows the structural example of the display set of the menu data in 2nd Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. It is a block diagram which shows the detailed structural example of the caption production | generation part of FIG. It is a flowchart explaining the caption production | generation process of the reproducing | regenerating apparatus of FIG. It is a figure which shows the example of the subtitles displayed in 3D on the display part of FIG. It is a figure which shows the structural example of the display set of the caption data in 3rd Embodiment of the disk to which this invention is applied. It is a figure which shows the structural example of the display set of the menu data in 3rd Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. It is a block diagram which shows the detailed structural example of the caption production | generation part of FIG. It is a flowchart explaining the caption offset change process of the reproducing | regenerating apparatus of FIG. It is a flowchart explaining the detail of the offset control process by the reproducing | regenerating apparatus of FIG. It is a figure which shows the example of the subtitles displayed in 3D on the display part of FIG. It is a figure which shows the structural example of the display set of the caption data in 4th Embodiment of the disk to which this invention is applied. It is a figure which shows the structural example of the display set of the menu data in 4th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. FIG. 35 is a block diagram illustrating a detailed configuration example of a caption generation unit in FIG. 34. FIG. 35 is a flowchart for explaining caption generation processing of the playback apparatus of FIG. 34. FIG. It is a figure which shows the example of the subtitles displayed in 3D on the display part of FIG. It is a figure which shows the structural example of the display set of the menu data in 5th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. FIG. 40 is a block diagram illustrating a detailed configuration example of a menu generation unit 331 in FIG. 39. It is a flowchart explaining the menu button offset change process by the menu production | generation part of FIG. It is a flowchart explaining the offset control processing by the reproducing | regenerating apparatus of FIG. It is a figure which shows the example of the menu button displayed in 3D on the display part of FIG. It is a figure which shows the structural example of the display set of the caption data in 6th Embodiment of the disk to which this invention is applied. It is a figure which shows the structural example of the display set of the menu data in 6th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. 47 is a block diagram illustrating a detailed configuration example of a caption generation unit in FIG. 46. FIG. It is a flowchart explaining the caption display change process by the caption production | generation part of FIG. Details of the display control processing by the playback apparatus of FIG. 46 will be described. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus which reproduces | regenerates the disc of 7th Embodiment to which this invention is applied. FIG. 51 is a flowchart for describing OSD display processing by the playback apparatus of FIG. 50. FIG. It is a figure explaining the determination method of offset information. It is a figure which shows the structural example of the epoch of the caption data in 8th Embodiment of the disk to which this invention is applied. It is a figure explaining the window of subtitle data. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. It is a block diagram which shows the detailed structural example of the caption production | generation part of FIG. 56 is a diagram for describing a transfer instruction based on a completion notification by the control unit in FIG. 55. FIG. 56 is a flowchart for describing playback processing by the playback device of FIG. 55. 60 is a flowchart for describing details of the 3D graphics generation processing of FIG. 58. 60 is a flowchart for explaining details of a caption generation process in FIG. 59. 61 is a flowchart for describing details of a right-eye caption object generation process of FIG. 60. It is a figure which shows the structural example of the epoch of the caption data in 9th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. 64 is a block diagram illustrating a detailed configuration example of a caption generation unit in FIG. 63. FIG. 65 is a flowchart for describing caption offset change processing by the caption generation unit in FIG. 64. FIG. 64 is a diagram illustrating an example of a caption displayed in 3D on the display unit in FIG. 63. It is a figure which shows the structural example of the epoch of the menu data in 10th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. FIG. 69 is a block diagram illustrating a detailed configuration example of a menu generation unit in FIG. 68. 70 is a flowchart illustrating menu button offset change processing by the menu generation unit of FIG. 69. FIG. 69 is a diagram illustrating an example of menu buttons displayed in 3D on the display unit in FIG. 68. It is a figure which shows the structural example of the epoch of subtitle data in 11th Embodiment of the disk to which this invention is applied. It is a block diagram which shows the structural example of the reproducing | regenerating apparatus. FIG. 74 is a block diagram illustrating a detailed configuration example of a caption generation unit in FIG. 73. It is a flowchart explaining the subtitle display change process by the subtitle generation part of FIG. FIG. 74 is a diagram illustrating another detailed configuration example of the caption generation unit in FIG. 73. FIG. 77 is a diagram for describing a method for generating common caption data for both eyes by the 2D conversion unit in FIG. 76. And FIG. 16 is a block diagram illustrating a configuration example of a personal computer. It is a figure which shows the example of the syntax of PCS. It is a figure which shows the example of the syntax of ICS. It is a figure explaining the display data for left eyes and right eyes. It is a block diagram which shows the detailed structural example of a 3D display data generation part. It is a block diagram which shows the other structural example of the reproducing | regenerating apparatus of FIG. FIG. 84 is a block diagram illustrating a detailed configuration example of a caption generation unit in FIG. 83. It is a block diagram which shows the detailed structural example of the 3D display data generation part of FIG.

<First embodiment>
[Configuration Example of Disc First Embodiment]
FIG. 1 is a diagram showing a configuration example of a first embodiment of a disk to which the present invention is applied.

  The disc 11 in FIG. 1 is configured by a BD-ROM (Blue-ray Disc-Read Only Memory) or the like, and an index file (index.bdmv) and a movie object file (MovieObject.bdmv) are recorded on the disc 11. . In addition, a playlist file (PLAYLIST / XXXXX.mpls), a clip information file (CLIPINF / XXXXX.clpi), a stream file (STREAM / XXXXX.m2ts), and the like are also recorded on the disc 11. X is an arbitrary number from 0 to 9.

  The stream file is a TS (Transport Stream) file in which video data or audio data of a main image such as a movie is multiplexed in conformity with ISO13818-2. Hereinafter, this TS is referred to as an AV stream.

  The detailed configuration of each file will be described below.

[Detailed configuration example of index file]
FIG. 2 is a diagram illustrating a detailed configuration example of the index file.

  As shown in FIG. 2, the index file describes, for example, a list of title numbers recorded on the disc 11 and the types and numbers of objects executed corresponding to the title numbers.

  As the title number, not only the integer value assigned in order from 1, but also “First Play” corresponding to the object executed when the disc 11 is inserted into the playback device is described. In addition, “Top Menu” corresponding to the object executed when the top menu screen is displayed is also described. There are two types of objects: a movie object (MovieObject) and a BD-J object (BD-J Object).

  In the example of FIG. 2, “MovieObject # 1”, “MovieObject # 2”, and “MovieObject # M” correspond to “First Play”, “Top menu”, and “Title # N”, respectively, in the index file. is described. Also, “BD-J Object # 1” is described corresponding to “Title # 1”.

  MovieObject # i and BD-J Object # i indicate that the object type is a movie object and a BD-J object, respectively, and the object number is i. Title # i indicates that the title number is i.

  In the present invention, the description of the BD-J object is omitted because it is not particularly related to the BD-J object.

  Such an index file is also called an index table.

[Detailed configuration example of movie object file]
FIG. 3 is a diagram illustrating a detailed configuration example of a movie object file.

  As shown in FIG. 3, a plurality of movie objects are described in the movie object file. In the example of FIG. 3, M movie objects to which numbers from 0 to M are assigned are described in the movie object file. A command is described in the movie object, and a playback device that plays back the disc 11 sequentially executes the command.

  FIG. 4 is a diagram illustrating a detailed configuration example of a movie object.

  In the example of FIG. 4, commands “EQ (GPR # 0,1)”, “PlayPlayList (02000)”, “PlayPlayList (01000)”, and “JumpTitle # 1” are described in movie object # 1. . This command causes the playback device to play the playlist file (PLAYLIST / 02000.mpls) if the value of GPR # 0 is 1, and to play the playlist file (PLAYLIST / 01000.mpls) otherwise. Reproduce. Thereafter, the playback device transitions to title # 1. In the index file, since the BD-J object # 1 is associated with the title # 1, the playback device executes the BD-J object # 1.

  In the example of FIG. 4, commands “PlayPlayList (02000)” and “JumpTitle # 5” are described in the movie object # 2. With this command, the playback device plays back the playlist file (PLAYLIST / 02000.mpls). Thereafter, the playback apparatus executes an object corresponding to the type and number of the object described in the index file corresponding to the title number 5.

[Detailed configuration example of playlist file]
FIG. 5 is a diagram illustrating a detailed configuration example of a playlist file.

  A playlist file is a file that is played back only by a movie object or a BD-J object, and describes information related to an AV stream that is played back by one command described in these objects.

  Specifically, as illustrated in FIG. 5, the playlist file includes a plurality of play items. Each play item describes information specifying a clip information file corresponding to an AV stream to be played back and time information indicating a playback section of the AV stream.

[Detailed configuration example of clip information file]
FIG. 6 is a diagram illustrating a detailed configuration example of a clip information file.

  The clip information file describes a map associating time information described in the playlist with the packet number of the AV stream. Therefore, the playback device can recognize the packet number of the AV stream to be played back corresponding to each play item by referring to the clip information file.

  For example, as illustrated in FIG. 6, when the playback device reads the play item # 0 in the playlist (PlayItem # 0), the playback device reads the clip information file (01000.clpi) specified by the play item. Then, the playback device refers to the clip information file (01000.clpi), recognizes the packet number of the playback section corresponding to the time information described by the play number 0, and the AV stream corresponding to the packet number Play. As a result, the reproduction is started from the packet whose packet number is 100.

  Further, when the playback device reads the first play item (PlayItem # 1), the playback device reads the clip information file (02000.clpi) specified by the play item. Then, the playback device refers to the clip information file (02000.clpi), recognizes the packet number of the playback section corresponding to the time information described by the first play item, and AV stream corresponding to the packet number Play. As a result, the reproduction is started from the packet number 500.

[Detailed configuration example of stream file]
FIG. 7 is a diagram illustrating a detailed configuration example of a stream file.

  As shown in FIG. 7, a stream file is encoded and multiplexed in accordance with MPEG2, MPEG-4 AVC (Advanced Video Coding), VC1, etc. as an AV stream, and is multiplexed as video data (V) and audio data. (A), subtitle data (P), and menu data (I) TS packets. Note that the video data, caption data, and menu data are data for displaying the main image, caption, and menu button, respectively.

  In the example of FIG. 7, the 100th packet of the AV stream of the stream file is video data, the 101st packet is audio data, the 500th packet is caption data, and the 800th packet is menu data. Yes. One packet consists of 192 bytes of data.

  When the AV stream of the stream file as described above is reproduced, a PES (Packetized Elementary Stream) packet is extracted from the AV stream.

[Description of PES packet]
FIG. 8 is a diagram for explaining extraction of a PES packet.

  When reproducing the stream file of the AV stream shown in FIG. 8A, the playback device extracts a PES packet from the AV stream as shown in FIG. 8B.

  Specifically, the 100th packet of the AV stream shown in FIG. 8A is video data, the 101st packet is audio data, the 500th, 550, and 1050th packets are subtitle data, and the 800th packet is menu data. is there. In this case, as illustrated in FIG. 8B, the playback device extracts a PES packet including the 500th packet, the 550th packet, and the 1050th packet.

  FIG. 9 is a diagram illustrating a detailed configuration example of the PES packet.

  As shown in FIG. 9, the PES packet is composed of a PES packet header and a segment. In the PES packet header, PTS (Presentation Time Stamp) indicating the display time, DTS (Decoding Time Stamp), and the like are described.

  Segments included in the PES packet of caption data include PCS (Presentation Composition Segment), WDS (Window Definition Segment), PDS (Palette Definition Segment), ODS (Object Definition Segment), or END (End of Display Set Segment). is there. The segments included in the menu data PES packet include ICS (Interactive Composition Segment), PDS, ODS, and END.

  In the PCS of the caption data, an ID (hereinafter referred to as a sub-image ID) assigned to the caption corresponding to each ODS, offset information (details will be described later) for each screen for displaying the caption in 3D, and the like are described. . In the WDS of caption data, information indicating a structure such as a window position and size indicating a caption display range, an ID unique to the window (hereinafter referred to as a window ID), and the like are described. The PDS of caption data describes information on colors that can be used as caption colors. In the ODS of the caption data, information indicating the shape of the caption is described. END of caption data is a segment indicating the end of a display set (details will be described later).

  The offset information will be described below.

  In order to show a 3D image to a user, it is necessary to show one image of two images separated by a predetermined distance in a predetermined direction and to display the other image to the right eye.

  However, the video data, caption data, and menu data recorded on the disc 11 are data for 2D display, and the playback device cannot display both left-eye and right-eye images. Therefore, in order to enable 3D display of an image, an offset direction (offset_flag) indicating the shift direction of the left-eye image and the right-eye image with respect to the 2D display image and an offset value (offset_value) indicating the shift amount are described as offset information. Is done. The left-eye offset direction and the right-eye offset direction are opposite directions. The offset value is expressed by the number of pixels, for example.

  The menu data ICS is executed by offset information in units of screens for displaying the menu button in 3D, an ID unique to the menu button corresponding to each ODS (hereinafter referred to as a button ID), and an operation of the menu button. Button information including menu control information such as commands is described.

  Information on colors that can be used as menu button colors is described in the PDS of the menu data. Information indicating the shape of the menu button is described in the ODS of the menu data. The menu button END is a segment indicating the end of the display set.

  FIG. 10 is a diagram illustrating a configuration example of a display set composed of segments of caption data as described above, and FIG. 11 is a diagram illustrating a configuration example of a display set composed of segments of menu data.

  As shown in FIG. 10, the display set of caption data is composed of PCS, WDS, PDS, ODS, and END, which are caption segments for one screen. In the example of FIG. 10, the display set of caption data is composed of PCS, WDS, PDS, ODS, and END.

  As shown in FIG. 11, the display set of menu data is composed of ICS, PDS, ODS, and END, which are menu button segments for one screen. In the example of FIG. 11, the display set of menu data is composed of PCS, PDS # 1, PDS # 2, ODS, and END. In the example of FIG. 11, since there are two types of color information that can be used as menu button colors for one screen, two types of PDS are arranged in the display set.

  FIG. 12 is a diagram showing a configuration example of an epoch composed of the display set as described above.

  As shown in FIG. 12, the epoch is composed of an arbitrary number of display sets. In FIG. 12A, the epoch is composed of three display sets, and in FIG. 12B, the epoch is composed of two display sets.

  The playback device continuously displays subtitles and menu buttons corresponding to one epoch, and after temporarily interrupting the display, displays the subtitles and menu buttons corresponding to the next epoch. That is, an epoch is a unit of a display set of subtitles and menu buttons that can be displayed continuously.

[Example of playback device configuration]
FIG. 13 is a block diagram illustrating a configuration example of the reproducing device 20 that reproduces the disk 11 described above.

  The playback device 20 in FIG. 13 includes an input unit 21, a control unit 22, and a playback unit 23.

  The input unit 21 includes a keyboard, a mouse, a microphone, and the like. The input unit 21 receives a command from the user and supplies it to the control unit 22. The control unit 22 controls the reproduction unit 23 according to a command from the input unit 21.

  The playback unit 23 includes a drive 31, a read buffer 32, a PID filter 33, a 3D video generation unit 34, a 3D graphics generation unit 35, a 3D display data generation unit 36, and an audio generation unit 37.

  The drive 31 drives the loaded disk 11 according to the control of the control unit 22. As a result, the drive 31 reads the index file, AV stream, etc. recorded on the disk 11. The drive 31 supplies the read index file and the like to the control unit 22. The drive 31 supplies the read AV stream to the read buffer 32.

  The read buffer 32 holds the AV stream supplied from the drive 31 or reads the held AV stream and supplies it to the PID filter 33 under the control of the control unit 22.

  Based on the packet ID (PID) of each packet of the AV stream from the read buffer 32, the PID filter 33 extracts the video data, caption data, menu data, and audio data packets included in the AV stream. The PID is a unique ID for each type of data constituting the packet, and is added to the packet.

  The PID filter 33 extracts PES packets from the extracted video data, caption data, menu data, and audio data packets, respectively. Then, the PID filter 33 supplies the PES packet of video data to the 3D video generation unit 34 and supplies the PES packet of caption data and menu data to the 3D graphics generation unit 35. Further, the PID filter 33 supplies the PES packet of audio data to the audio generation unit 37.

  The 3D video generation unit 34 generates video data for the right eye and video data for the left eye using the PES packet of the video data supplied from the PID filter 33.

  Specifically, the 3D video generation unit 34 decodes the PES packet of the video data, and uses the resulting video data as video data for the left eye. The 3D video generation unit 34 generates video data of an image obtained by shifting a main image corresponding to the video data by a predetermined offset value in a predetermined offset direction as video data for the right eye. Then, the 3D video generation unit 34 supplies the left-eye video data and the right-eye video data to the 3D display data generation unit 36 as 3D video data.

  The 3D graphics generation unit 35 includes a caption generation unit 41 and a menu generation unit 42. The caption generation unit 41 generates right-eye caption data and left-eye caption data using the PES packet of the caption data supplied from the PID filter 33. Then, the caption generation unit 41 supplies the right-eye caption data and the left-eye caption data to the 3D display data generation unit 36 as 3D caption data. Details of the caption generation unit 41 will be described with reference to FIG.

  The menu generation unit 42 generates menu data for the right eye and menu data for the left eye using the PES packet of the menu data supplied from the PID filter 33. Then, the menu generation unit 42 supplies the right-eye menu data and the left-eye menu data to the 3D display data generation unit 36 as 3D menu data.

  The 3D display data generation unit 36 converts the 3D video data supplied from the 3D video generation unit 34 and the 3D subtitle data and 3D menu data supplied from the 3D graphics generation unit 35 into data for each of the left and right eyes. To synthesize. Specifically, the 3D display data generation unit 36 generates left-eye display data by combining the left-eye video data, the left-eye caption data, and the left-eye menu data. In addition, the 3D display data generation unit 36 combines the right-eye video data, the right-eye caption data, and the right-eye menu data to generate right-eye display data. The 3D display data generation unit 36 supplies the display data for the left eye and the display data for the right eye to the display unit 51 as 3D display data.

  The audio generation unit 37 decodes the PES packet of the audio data supplied from the PID filter 33 and supplies the audio data obtained as a result to the speaker 52.

  The display unit 51 is configured by a 3D display or the like. The display unit 51 performs output based on the 3D display data supplied from the 3D display data generation unit 36. As a result, the user can see the 3D image.

  The speaker 52 outputs sound corresponding to the audio data supplied from the audio generation unit 37.

[Detailed configuration example of subtitle generator]
FIG. 14 is a block diagram illustrating a detailed configuration example of the caption generation unit 41 in FIG. 13.

  14, the caption generation unit 41 includes an encoded data buffer 61, a stream graphics generation unit 62, an object buffer 63, and a 3D generation unit 64. The caption generation unit 41 includes a right-eye graphics plane 65, a left-eye graphics plane 66, a CLUT (Color Look Up Table) 67, a composition buffer 68, and a control unit 69.

  The encoded data buffer 61 holds a segment of the PES packet of caption data supplied from the PID filter 33. The encoded data buffer 61 supplies the PDS, ICS, WDS, and PCS to the stream graphics generation unit 62 based on the DTS included in the PES packet header of the PES packet of the caption data. The encoded data buffer 61 immediately supplies the PDS of the caption data supplied from the PID filter 33 to the stream graphics generation unit 62.

  The stream graphics generation unit 62 decodes the ODS supplied from the encoded data buffer 61, and supplies uncompressed caption data (run-length data) composed of index colors obtained as a result to the object buffer 63 as a caption object. To do. Further, the stream graphics generation unit 62 supplies the PDS, PCS, and WDS supplied from the encoded data buffer 61 to the composition buffer 68.

  The object buffer 63 holds the caption object supplied from the stream graphics generation unit 62.

  The 3D generation unit 64 reads the caption object from the object buffer 63 according to the control from the control unit 69. Based on the offset information in increments of screens included in the PCS from the control unit 69, the 3D generation unit 64 uses the subtitle objects for the right eye and the left eye for all the ODSs included in the same display set as the PCS. Generate a caption object.

  Specifically, the 3D generation unit 64 converts the subtitle object of the screen unit obtained by shifting the subtitle of the screen unit corresponding to the subtitle object by the offset value in the offset direction of the offset information, the subtitle object for the right eye, and the subtitle object for the right eye Generated as a subtitle object for the left eye.

  Then, the 3D generation unit 64 supplies the right-eye caption object to the right-eye graphics plane 65. Further, the 3D generation unit 64 supplies the left-eye caption object to the left-eye graphics plane 66.

  The right-eye graphics plane 65 holds the right-eye caption object for one screen supplied from the 3D generation unit 64. The right-eye graphics plane 65 reads the retained right-eye caption object in accordance with an instruction from the control unit 69 and supplies the read right-eye caption object to the CLUT 67.

  The left-eye graphics plane 66 holds the left-eye caption object for one screen supplied from the 3D generation unit 64. The left-eye graphics plane 66 reads the stored left-eye caption object in accordance with an instruction from the control unit 69 and supplies the read-out left-eye caption object to the CLUT 67.

  The CLUT 67 stores a table in which index colors are associated with Y, Cr, and Cb values based on the PDS supplied from the control unit 69. The CLUT 67 converts the index color of the right-eye caption object supplied from the right-eye graphics plane 65 into image data composed of Y, Cr, and Cb values based on the stored table. The CLUT 67 similarly converts the left-eye caption object supplied from the left-eye graphics plane 66 into image data. Then, the CLUT 67 outputs the image data of the right-eye caption object to the 3D display data generation unit 36 as the right-eye caption data, and outputs the image data of the left-eye caption object to the 3D display data generation unit 36 as the left-eye caption data. .

  The composition buffer 68 holds the PDS, PCS, and WDS supplied from the stream graphics generation unit 62.

  The control unit 69 reads the offset information for each screen included in the PCS from the composition buffer 68 and supplies it to the 3D generation unit 64. Further, the control unit 69 instructs the right-eye graphics plane 65 to transfer the right-eye caption object to the CLUT 67 at the timing based on the PTS included in the PES packet header, and the left-eye graphics plane 66 has the left-eye caption. Instructs transfer of the object to CLUT 67. Further, the control unit 69 reads the PDS from the composition buffer 68 and supplies it to the CLUT 67.

  Moreover, the control part 69 controls each part according to the instruction | command from the control part 22 (FIG. 13).

[Detailed configuration example of menu generator]
Since the menu generation unit 42 is configured in the same manner as the caption generation unit 41 of FIG. 14 except that the processing target is not caption data but menu data, the illustration is omitted.

  The encoded data buffer of the menu generation unit 42 holds a segment of the PES packet of menu data, and the composition buffer holds ICS and PDS. The stream graphics generation unit decodes the ODS of the menu data, and supplies the uncompressed menu data composed of the index colors to the object buffer as a menu object to be held.

  The 3D graphics generation unit generates a menu object for the right eye from the menu object from the object buffer based on the offset information of the screen unit included in the ICS of the menu data, and holds it in the graphics plane for the right eye. Further, the 3D graphics generation unit generates a left-eye menu object from the menu object from the object buffer based on the offset information for each screen included in the ICS of the menu data, and stores the left-eye menu object in the left-eye graphics plane. The CLUT converts the right-eye menu object into image data, outputs it as 3D display data generation unit 36 as right-eye menu data, converts the left-eye menu object into image data, and 3D display data generation unit as left-eye menu data To 36.

[Description of playback device processing]
FIG. 15 is a flowchart for explaining the reproduction processing by the reproduction apparatus 20. This reproduction process is started, for example, when the disk 11 is loaded in the drive 31.

  In step S <b> 11 of FIG. 15, the drive 31 reads the index file from the disk 11 and supplies the index file to the control unit 22 in response to a command from the control unit 22.

  In step S <b> 12, the drive 31 reads a movie object file corresponding to the first play of the index file from the disc 11 and supplies the movie object file to the control unit 22 in response to a command from the control unit 22 based on the index file. The control unit 22 recognizes a command described in the movie object included in the movie object file, and instructs the drive 31 to read the playlist in accordance with the command.

  In step S <b> 13, the drive 31 reads out a playlist according to the command of the movie object from the disc 11 and supplies it to the control unit 22 in accordance with a command from the control unit 22.

  In step S <b> 14, the drive 31 reads out the clip information file specified in the playlist from the disc 11 and supplies the clip information file specified in the playlist to the controller 22 in response to a command from the controller 22 based on the playlist. The control unit 22 recognizes the packet number of the AV stream to be reproduced based on the playlist and the clip information file. Then, the control unit 22 instructs the drive 31 to read an AV stream including a packet having a packet number to be reproduced.

  In step S <b> 15, the drive 31 reads the AV stream to be played back from the disk 11 and supplies it to the read buffer 32 in response to a command from the control unit 22. In step S <b> 16, the read buffer 32 holds the AV stream supplied from the drive 31. The read buffer 32 reads the held AV stream and supplies it to the PID filter 33.

  In step S <b> 17, the PID filter 33 extracts PES packets of video data, caption data, menu data, and audio data of the AV stream based on the PID of each packet of the AV stream from the read buffer 32. Then, the PID filter 33 supplies the PES packet of video data to the 3D video generation unit 34 and supplies the PES packet of caption data and menu data to the 3D graphics generation unit 35. Further, the PID filter 33 supplies the PES packet of audio data to the audio generation unit 37.

  In step S <b> 18, the 3D video generation unit 34 generates 3D video data using the PES packet of the video data supplied from the PID filter 33, and supplies the 3D video data to the 3D display data generation unit 36.

  In step S19, the 3D graphics generation unit 35 performs 3D graphics generation processing for generating 3D subtitle data and 3D menu data. Details of the 3D graphics generation processing will be described in detail with reference to FIG.

  In step S20, the 3D display data generation unit 36 converts the 3D video data from the 3D video generation unit 34 and the 3D subtitle data and 3D menu data from the 3D graphics generation unit 35 into data for each of the left and right eyes. To synthesize. Then, the 3D display data generation unit 36 supplies the display data for the left eye and the display data for the right eye obtained as a result of the synthesis to the display unit 51 as 3D display data.

  In step S <b> 21, the audio generation unit 37 decodes the PES packet of the audio data supplied from the PID filter 33 and generates audio data. Then, the audio generation unit 37 supplies the generated audio data to the speaker 52.

  In step S22, the display unit 51 alternates the left-eye image corresponding to the left-eye display data and the right-eye image corresponding to the right-eye display data based on the 3D display data supplied from the 3D display data generation unit 36, or Display at the same time.

  In step S <b> 23, the speaker 52 outputs sound corresponding to the audio data supplied from the audio generation unit 37. Then, the process ends.

  For convenience of explanation, the output of the image and the sound is described as separate steps, but actually, the image and the sound are output in synchronization. The same applies to the reproduction processing described later.

  In FIG. 15, the playback process immediately after the disc 11 is mounted has been described. However, when a title corresponding to a movie object file other than the first play is played after the disc 11 is mounted, the same playback process is performed. In this case, however, the movie object file read in step S12 is a movie object file corresponding to the title number of the title to be reproduced in the index file.

  For example, when the user operates the input unit 21 to instruct the display of the top menu screen, the playback device 20 reads the second movie object file corresponding to the title number “Top Menu” in step S12. Process.

  FIG. 16 is a flowchart for explaining the details of the 3D graphics generation processing in step S19 of FIG.

  In step S41 of FIG. 16, the caption generation unit 41 performs caption generation processing for generating 3D caption data. Details of the caption generation processing will be described with reference to FIG.

  In step S42, the menu generation unit 42 performs a menu generation process for generating 3D menu data, and returns the process to step S19 in FIG. And the process after step S20 is performed.

  FIG. 17 is a flowchart illustrating details of the caption generation processing in step S41 of FIG.

  In step S61 of FIG. 17, the encoded data buffer 61 holds a segment of the PES packet of caption data supplied from the PID filter 33. In step S <b> 62, the encoded data buffer 61 reads the held segment and supplies it to the stream graphics generation unit 62.

  In step S63, the stream graphics generation unit 62 supplies the PCS, PDS, and WDS supplied from the encoded data buffer 61 to the composition buffer 68 and holds them.

  In step S 64, the stream graphics generation unit 62 decodes the ODS supplied from the encoded data buffer 61 and supplies the caption object obtained as a result to the object buffer 63. In step S <b> 65, the object buffer 63 holds the caption object supplied from the stream graphics generation unit 62.

  In step S66, the 3D generation unit 64, based on the offset information in increments of screens included in the PCS from the control unit 69, subtitles for the right eye from subtitle objects corresponding to all ODSs included in the same display set as the PCS. Object and left eye caption object are generated. In step S67, the 3D generation unit 64 supplies and holds the right-eye caption object to the right-eye graphics plane 65.

  In step S68, the 3D generation unit 64 supplies the left-eye caption object to the left-eye graphics plane 66 and holds it.

  In step S <b> 69, the right-eye graphics plane 65 reads the retained right-eye caption object in accordance with an instruction from the control unit 69 and supplies the read right-eye caption object to the CLUT 67. In step S <b> 70, the left-eye graphics plane 66 reads the retained left-eye caption object in accordance with an instruction from the control unit 69, and supplies it to the CLUT 67.

  In step S71, the CLUT 67 converts the index color of the right-eye caption object supplied from the right-eye graphics plane 65 into image data composed of Y, Cr, and Cb values based on the stored table.

  In step S72, the CLUT 67 converts the index color of the left-eye caption object supplied from the left-eye graphics plane 66 into image data composed of Y, Cr, and Cb values based on the stored table.

  In step S73, the CLUT 67 outputs the image data of the right-eye caption object to the 3D display data generation unit 36 as the right-eye caption data, and the image data of the left-eye caption object to the 3D display data generation unit 36 as the left-eye caption data. Output. And a process returns to step S41 of FIG. 16, and progresses to step S42.

  The menu generation process in step S42 in FIG. 16 is performed in the same manner as the caption generation process in FIG. 17 except that the processing target is not the caption data but the menu data, and thus the description thereof is omitted.

[Subtitle 3D display example]
FIG. 18 is a diagram illustrating an example of subtitles displayed in 3D on the display unit 51 of the playback device 20.

  Based on the offset information in increments of screens included in the PCS, the playback device 20 generates subtitles obtained as a result of shifting the subtitles in increments of screens corresponding to all ODSs included in the same display set as the PCS in the opposite direction. Subtitle objects are generated as a right eye subtitle object and a left eye subtitle object.

  Therefore, as shown in FIG. 18, caption # 1 and caption # 2 as 3D images displayed on one screen have the same length in the same depth direction. The depth direction is a direction perpendicular to the display surface of the display unit 51. If the direction toward the front of the display surface is a positive direction and the direction toward the back of the display surface is a negative direction, if the position in the depth direction of the subtitle is positive, the subtitle appears to pop out, and if it is negative, the subtitle is Looks retracted. Subtitle #i represents the i-th subtitle displayed in one screen.

  As described above, subtitle data and menu data are recorded on the disk 11, and offset information for each screen is recorded. Therefore, the playback device 20 can display 3D captions and menu buttons by generating 3D caption data from caption data based on the offset information in units of screens and generating 3D menu data from menu data.

<Second Embodiment>
[Configuration Example of Display Set in Second Embodiment of Disc]
FIG. 19 is a diagram showing a configuration example of a display set of caption data in the second embodiment of the disc to which the present invention is applied, and FIG. 20 is a diagram showing a configuration example of a display set of menu data.

  As shown in FIG. 19, in the disk 81, unlike the disk 11, offset information in units of ODS is described in ODS instead of PCS. Therefore, offset information can be set for each subtitle.

  The display set in FIG. 19 is an example of a display set for displaying two subtitles on one screen, and two ODSs, ODS # 1 and ODS # 2, are arranged in the display set. ODS # 1 and ODS # 2 describe offset information # 1 and offset information # 2 in units of ODS, respectively.

  Also, as shown in FIG. 20, in the disk 81, unlike the disk 11, offset information in units of ODS is described in ODS instead of ICS. Therefore, offset information can be set for each menu button.

  The display set of FIG. 20 is a display set for displaying two menu buttons on one screen, and two ODSs of ODS # 1 and ODS # 2 are arranged in the display set. ODS # 1 and ODS # 2 describe offset information # 1 and offset information # 2 in units of ODS, respectively.

[Detailed configuration example of playback device]
FIG. 21 is a block diagram illustrating a configuration example of a playback device 90 that plays back the disk 81 described above.

  Of the configurations shown in FIG. 21, configurations the same as the configurations in FIG. 13 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 90 in FIG. 21 is different from the configuration in FIG. 13 mainly in that a playback unit 91 is provided instead of the playback unit 23. The configuration of the playback unit 91 is different from the configuration of FIG. 13 in that a 3D graphics generation unit 101 is provided instead of the 3D graphics generation unit 35.

  The 3D graphics generation unit 101 includes a caption generation unit 111 and a menu generation unit 112. The caption generation unit 111 generates caption data for the right eye and caption data for the left eye based on the offset information in units of ODS, using the PES packet of the caption data supplied from the PID filter 33. Then, the caption generation unit 111 supplies the right-eye caption data and the left-eye caption data to the 3D display data generation unit 36 as 3D caption data. Details of the caption generation unit 111 will be described with reference to FIG.

  The menu generation unit 112 generates menu data for the right eye and menu data for the left eye based on the offset information in units of ODS, using the PES packet of the menu data supplied from the PID filter 33. Then, the menu generation unit 112 supplies the menu data for the right eye and the menu data for the left eye to the 3D display data generation unit 36 as 3D menu data.

[Detailed configuration example of subtitle generator]
FIG. 22 is a block diagram illustrating a detailed configuration example of the caption generation unit 111 of the playback device 90.

  Of the configurations shown in FIG. 22, configurations the same as the configurations in FIG. 14 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the caption generation unit 111 in FIG. 22 is mainly because a 3D generation unit 121 is provided instead of the 3D generation unit 64, and a control unit 122 is provided instead of the control unit 69. 14 different from the configuration.

  Similar to the 3D generation unit 64, the 3D generation unit 121 reads a caption object from the object buffer 63 in accordance with control from the control unit 122. The 3D generation unit 121 generates a right-eye caption object and a left-eye caption object from the caption object corresponding to the ODS based on the offset information in ODS units included in each ODS from the control unit 122.

  Specifically, the 3D generation unit 121 shifts each subtitle in the screen corresponding to the subtitle object by the offset value in the offset direction of the offset information in the ODS unit corresponding to the subtitle by the offset value. Subtitle objects are generated as a right eye subtitle object and a left eye subtitle object.

  The 3D generation unit 121 supplies the right-eye caption object to the right-eye graphics plane 65. In addition, the 3D generation unit 121 supplies the left-eye caption object to the left-eye graphics plane 66.

  The control unit 122 reads out offset information in units of ODS included in each ODS from the composition buffer 68 and supplies the information to the 3D generation unit 121. Similarly to the control unit 69, the control unit 122 instructs the right-eye graphics plane 65 to transfer and instructs the left-eye graphics plane 66 to transfer at a timing based on the PTS included in the PES packet header. . Further, like the control unit 69, the control unit 122 reads the PDS from the composition buffer 68 and supplies it to the CLUT 67.

  Moreover, the control part 122 controls each part according to the instruction | command from the control part 22 (FIG. 21) similarly to the control part 69. FIG.

[Detailed configuration example of menu generator]
Since the menu generation unit 112 is configured in the same manner as the subtitle generation unit 111 of FIG. 22 except that the processing target is not the subtitle data but the menu data, illustration is omitted.

[Description of playback device processing]
The playback process and 3D graphics generation process by the playback device 90 are the same as the playback process of FIG. 15 and the 3D graphics generation process of FIG.

  FIG. 23 is a flowchart illustrating details of the caption generation processing in step S41 of FIG.

  The processes in S81 through S85 in FIG. 23 are the same as the processes in steps S61 through S65 in FIG.

  In step S86, based on the offset information included in each ODS from the control unit 122, the 3D generation unit 121 generates a right-eye caption object and a left-eye caption object from the caption object corresponding to the ODS. Then, the process proceeds to step S87.

  The processing in steps S87 to S93 is the same as the processing in steps S67 to S73 in FIG.

  The menu generation process in step S42 in FIG. 16 by the playback device 90 is performed in the same manner as the caption generation process in FIG. 23 except that the processing target is not the caption data but the menu data, and thus the description thereof is omitted. To do.

[Subtitle 3D display example]
FIG. 24 is a diagram illustrating an example of subtitles displayed in 3D on the display unit 51 of the playback device 90.

  Based on the offset information in units of ODS included in each ODS, the playback device 90 converts the subtitle objects of the subtitles obtained as a result of shifting the subtitles corresponding to the ODS in the opposite direction into the subtitle objects for the right eye and the left eye Generate as

  Therefore, as shown in FIG. 24, the positions in the depth direction of the caption # 1 and the caption # 2 as 3D images displayed on one screen can be made different. In the example of FIG. 24, the subtitle # 1 and the subtitle # 2 have the same depth in the depth direction, that is, both the subtitle # 1 and the subtitle # 2 pop out, but may be different. it can.

  Furthermore, as an additional condition, as shown in FIG. 52, subtitles or menu buttons for each eye must not protrude from the plane (screen). Also, when multiple menu buttons exist in one screen and offset information is set for each menu button, that is, when offset information is described in ODS units, a right-eye image and a left-eye image of a certain menu button Each must not overlap with the right eye image or left eye image of another menu button.

  As described above, subtitle data and menu data are recorded on the disk 81, and offset information in units of ODS is recorded. Therefore, the playback device 90 can generate 3D subtitle data from subtitle data based on the offset information in units of ODS, and generate 3D menu data from the menu data, thereby displaying subtitles and menu buttons in 3D.

<Third Embodiment>
[Configuration Example of Display Set in Third Embodiment of Disc]
FIG. 25 is a diagram showing a configuration example of a display set of caption data in the third embodiment of the disc to which the present invention is applied, and FIG. 26 is a diagram showing a configuration example of a display set of menu data.

  As shown in FIG. 25, in the disk 151, similarly to the disk 11, offset information for each screen is described in the PCS. Further, as shown in FIG. 26, in the disk 151, as in the disk 11, offset change information for each screen is described in the ICS. On the disk 151, a set offset command is described in the ICS.

  The set offset command is a navigation command for setting offset change information including offset change information indicating offset information after changing the screen unit of subtitles and menu buttons. In the third embodiment and the fourth embodiment to be described later, offset information indicating the difference between the vector represented by the offset information being set and the vector represented by the offset information after the change is used as the offset change information.

  When executing the set offset command, the playback device 160 (FIG. 27 to be described later) that plays the disc 151 executes the set offset command, subtitles described in the set offset command, offset change information for each menu button screen, and currently set subtitles. The screen-by-screen offset information of subtitles and menu buttons is changed based on the screen-by-screen offset information of menu buttons.

[Detailed configuration example of playback device]
FIG. 27 is a block diagram illustrating a configuration example of the reproducing device 160 that reproduces the disk 151 described above.

  Of the configurations shown in FIG. 27, configurations the same as the configurations in FIG. 13 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 160 in FIG. 27 is mainly that a control unit 161 is provided instead of the control unit 22, and a playback unit 162 is provided instead of the playback unit 23 in FIG. Different from the configuration. The configuration of the playback unit 162 is different from the configuration of FIG. 13 in that a 3D graphics generation unit 171 is provided instead of the 3D graphics generation unit 35.

  The control unit 161 controls the reproduction unit 162 according to a command from the input unit 21. Further, the control unit 161 requests the 3D graphics generation unit 171 for a command corresponding to the menu button in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 161 sets the offset change information in units of screens of subtitles and menu buttons described in the set offset command transmitted as a result by holding in the built-in register 161A. The control unit 161 supplies the 3D graphics generation unit 171 with the offset change information in units of screens of subtitles and menu buttons held in the register 161A.

  For example, the register 161A is configured by a register called PSR (Player Status Registers) that holds the setting status and the playback status of the playback device. The register 161A holds offset change information for each screen of subtitles and menu buttons.

  The 3D graphics generation unit 171 includes a caption generation unit 181 and a menu generation unit 182. Similar to the caption generation unit 41 in FIG. 13, the caption generation unit 181 uses the PES packet of the caption data supplied from the PID filter 33 and the right-eye caption data and the left-eye caption data based on the offset information in units of screens. Generate caption data. Then, the caption generation unit 181 supplies the right-eye caption data and the left-eye caption data to the 3D display data generation unit 36 as 3D caption data.

  Also, the caption generation unit 181 updates the offset information for each screen of the caption based on the offset change information for each screen of the caption transmitted from the control unit 161 and the currently set offset information.

  The menu generation unit 182 uses the menu data PES packet supplied from the PID filter 33 in the same manner as the menu generation unit 42 of FIG. 13, and uses the right-eye menu data and the left-eye menu data based on the offset information for each screen. Generate menu data. Then, the menu generation unit 182 supplies the right-eye menu data and the left-eye menu data to the 3D display data generation unit 36 as 3D menu data.

  Further, the menu generation unit 182 sends a set offset command included in the ICS to the control unit 161 in response to a command request corresponding to the offset change button that is a menu button for instructing the change of the offset from the control unit 161. Send. Then, the menu generation unit 182 obtains the offset information for the screen unit of the menu button based on the offset change information for the screen unit of the menu button and the currently set offset information transmitted from the control unit 161 as a result. Update.

[Detailed configuration example of subtitle generator]
FIG. 28 is a block diagram illustrating a detailed configuration example of the caption generation unit 181 of the playback device 160.

  Of the configurations shown in FIG. 28, configurations the same as the configurations in FIG. 14 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the caption generation unit 181 in FIG. 28 is mainly different from the configuration in FIG. 14 in that a control unit 191 is provided instead of the control unit 69.

  Similar to the control unit 69, the control unit 191 reads offset information in increments of screens included in the PCS from the composition buffer 68 and supplies it to the 3D generation unit 64. Similarly to the control unit 69, the control unit 191 instructs the right-eye graphics plane 65 and the left-eye graphics plane 66 to transfer at a timing based on the PTS included in the PES packet header. Further, like the control unit 69, the control unit 191 reads the PDS from the composition buffer 68 and supplies it to the CLUT 67.

  Moreover, the control part 191 controls each part according to the command from the control part 161 (FIG. 27).

  Further, the control unit 191 receives the offset change information for each subtitle screen stored in the register 161 </ b> A and transmitted from the control unit 161. The control unit 161 adds the vector represented by the received subtitle screen offset change information and the vector represented by the screen unit offset information included in the PCS, and adds the screen unit offset information represented by the vector to the new screen. Set as unit offset information. Then, the control unit 191 supplies the screen unit offset information to the 3D generation unit 64.

[Detailed configuration example of menu generator]
Since the menu generation unit 182 of the playback device 160 is configured in the same manner as the subtitle generation unit 181 of FIG. 28 except that the processing target is not caption data but menu data, illustration is omitted. However, the control unit of the menu generation unit 182 reads the set offset command included in the ICS from the composition buffer in response to a command request corresponding to the offset change button from the control unit 161, and transmits the set offset command to the control unit 161.

[Description of playback device processing]
The playback process, 3D graphics generation process, and caption generation process performed by the playback device 160 are the same as the playback process of FIG. 15, the 3D graphics generation process of FIG. 16, and the caption generation process of FIG. To do.

  FIG. 29 is a flowchart for explaining subtitle offset change processing by the subtitle generation unit 181 of the playback device 160. This subtitle offset change process is started when the control unit 161 transmits offset change information in response to a command corresponding to the operation of the offset change button from the input unit 21.

  In step S101 in FIG. 29, the control unit 191 receives from the control unit 161 offset change information for each subtitle screen held in the register 161A.

  In step S <b> 102, the control unit 191 sets new screen unit offset information based on the subtitle screen unit offset change information received from the control unit 161 and the screen unit offset information included in the PCS. Then, the control unit 191 supplies the set offset information for each screen to the 3D generation unit 64, and the process proceeds to step S103.

  In step S103, the 3D generation unit 64 generates a right-eye caption object and a left-eye caption object from the caption object based on the offset information in units of screen supplied from the control unit 191, and the process proceeds to step S104. The processing in steps S104 to S110 is the same as the processing in steps S67 to S73 in FIG.

  Note that the menu offset changing process by the menu generating unit 182 is performed in the same manner as the caption offset changing process of FIG. 29 except that the processing target is not the caption data but the menu data, and thus description thereof is omitted.

  FIG. 30 is a flowchart for explaining the details of the offset control processing by the playback device 160. This offset control processing is started when the control unit 161 requests the menu generation unit 182 for a command corresponding to the offset change button in response to an offset change command from the input unit 21.

  In step S121 of FIG. 30, the control unit 161 determines whether the set offset command transmitted from the menu generation unit 182 in response to the request is a subtitle set offset command. When it is determined in step S121 that the command is a subtitle set offset command, in step S122, the control unit 161 stores the subtitle screen offset change information described in the subtitle set offset command in the register 161A.

  In step S123, the control unit 161 transmits the subtitle screen offset change information stored in the register 161A to the subtitle generation unit 181 and ends the process.

  On the other hand, if it is determined in step S121 that the command is not a caption set offset command, that is, if a menu button set offset command is transmitted from the menu generation unit 182, the process proceeds to step S124. In step S124, the control unit 161 causes the register 161A to store offset change information for each screen of the menu button described in the menu button set offset command.

  In step S125, the control unit 161 transmits the screen unit offset change information of the menu button stored in the register 161A to the menu generation unit 182 and ends the process.

[Subtitle 3D display example]
FIG. 31 is a diagram illustrating an example of subtitles displayed in 3D on the display unit 51 of the playback device 160.

  As illustrated in FIG. 31A, in the playback device 160, an offset change button 195 as a 3D image having a predetermined length in a predetermined depth direction is displayed on the screen of the display unit 51 based on offset information in units of screens included in the ICS. Is displayed. In the example of FIG. 31A, subtitles # 1 and # 2 as 3D images having the same length in the same depth direction are further displayed on this screen based on offset information in units of screens included in the PCS. Yes.

  In the screen of FIG. 31A, when the user commands the offset change by operating the offset change button 195 using the input unit 21, the screen of the display unit 51 is changed to the screen shown in FIG. 31B.

  Specifically, when the offset change button 195 is operated, the playback device 160 stores the offset change information for each subtitle screen described in the set offset command included in the ICS corresponding to the offset change button 195 in the register. 161A. Then, the offset information of the screen unit represented by the vector obtained as a result of adding only the vector represented by the offset change information of the screen unit to the vector represented by the currently set screen unit offset information is the new offset information of the screen unit. Set as As a result, as shown in FIG. 31B, the length in the depth direction of caption # 1 and caption # 2 increases in the depth direction by a length corresponding to the offset change information in units of screens.

<Fourth embodiment>
[Configuration Example of Display Set in Fourth Embodiment of Disc]
FIG. 32 is a diagram showing a configuration example of a display set of caption data in the fourth embodiment of the disc to which the present invention is applied, and FIG. 33 is a diagram showing a configuration example of a display set of menu data.

  The disc 201 stores all information related to offset information recorded on the discs 11, 81, and 151.

  Specifically, as shown in FIG. 32, in the disc 201, offset information for each screen is described in the PCS as in the disc 11. Further, in the disk 201, as in the disk 81, offset information in units of ODS is described in the ODS.

  Further, as shown in FIG. 33, in the disc 201, the offset information for each screen is described in the ICS as in the disc 11, and the set offset command is described in the PCS as in the disc 151. Further, in the disk 201, as in the disk 81, offset information in units of ODS is described in the ODS.

[Detailed configuration example of playback device]
FIG. 34 is a block diagram illustrating a configuration example of the playback device 210 that plays back the above-described disc 201.

  The playback device 210 in FIG. 34 has all the functions of the playback device 20 in FIG. 13, the playback device 90 in FIG. 21, and the playback device 160 in FIG.

  Specifically, the playback device 210 in FIG. 34 includes an input unit 21, a display unit 51, a speaker 52, a control unit 161, and a playback unit 211. 34, the same components as those in FIG. 27 are denoted by the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback unit 211 is mainly different from the configuration of FIG. 27 in that a 3D graphics generation unit 221 is provided instead of the 3D graphics generation unit 171.

  The 3D graphics generation unit 221 includes a caption generation unit 231 and a menu generation unit 232. The caption generation unit 231 generates caption data for the right eye and caption data for the left eye based on the offset information in units of screens and the offset information in units of ODS, using the PES packet of the caption data supplied from the PID filter 33. . Then, the caption generation unit 231 supplies the caption data for the right eye and the caption data for the left eye to the 3D display data generation unit 36 as 3D caption data.

  Similarly to the caption generation unit 181 in FIG. 27, the caption generation unit 231 generates a caption based on the offset change information for each caption screen transmitted from the control unit 161 and the currently set offset information. Update the offset information for each screen.

  The menu generation unit 232 generates menu data for the right eye and menu data for the left eye based on the offset information in units of screens and the offset information in units of ODS, using the PES packet of the menu data supplied from the PID filter 33. . Then, the menu generation unit 232 supplies the right-eye menu data and the left-eye menu data to the 3D display data generation unit 36 as 3D menu data.

  In addition, the menu generation unit 232 sends a set offset command included in the ICS to the control unit 161 in response to a command request corresponding to the offset change button 195 from the control unit 161, as in the menu generation unit 182 of FIG. Send. Then, similarly to the menu generation unit 182, the menu generation unit 232 determines the menu based on the offset change information for each screen of the menu button transmitted from the control unit 161 and the currently set offset information. Update the offset information of the screen unit of the button.

[Detailed configuration example of subtitle generator]
FIG. 35 is a block diagram illustrating a detailed configuration example of the caption generation unit 231 of the playback apparatus 210.

  35 has all the functions of the caption generation unit 41 in FIG. 14, the caption generation unit 111 in FIG. 22, and the caption generation unit 181 in FIG.

  Specifically, the caption generation unit 231 in FIG. 35 includes an encoded data buffer 61, a stream graphics generation unit 62, an object buffer 63, a right-eye graphics plane 65, and a left-eye graphics plane 66. The caption generation unit 231 includes a CLUT 67, a composition buffer 68, a 3D generation unit 251, and a control unit 252. Of the configurations shown in FIG. 35, configurations the same as the configurations in FIG. 28 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The 3D generation unit 251 has the functions of both the 3D generation unit 64 in FIG. 14 and the 3D generation unit 121 in FIG. Specifically, the 3D generation unit 251 reads a caption object from the object buffer 63 according to control from the control unit 252. The 3D generation unit 251 generates a right-eye caption object and a left-eye caption object from caption objects corresponding to each ODS, based on the screen unit and ODS unit offset information from the control unit 252. Then, the 3D generation unit 251 supplies the right-eye caption object to the right-eye graphics plane 65. The 3D generation unit 251 supplies the left-eye caption object to the left-eye graphics plane 66.

  The control unit 252 reads the offset information in increments of screens included in the PCS from the composition buffer 68 and supplies it to the 3D generation unit 121 as in the control unit 69 of FIG. Similarly to the control unit 69, the control unit 252 instructs the right-eye graphics plane 65 to transfer at the timing based on the PTS included in the PES packet header, and also instructs the left-eye graphics plane 66 to transfer. Further, like the control unit 69, the control unit 252 reads the PDS from the composition buffer 68 and supplies it to the CLUT 67.

  Further, the control unit 252 reads offset information in units of ODS included in each ODS from the composition buffer 68 and supplies the offset information to the 3D generation unit 121 in the same manner as the control unit 122 in FIG.

  Similar to the control unit 191, the control unit 252 receives the offset change information for each subtitle screen stored in the register 161A and transmitted from the control unit 161. Similar to the control unit 161, the control unit 252 sets new screen unit offset information based on the received subtitle screen unit offset change information and the screen unit offset information included in the PCS. Then, similarly to the control unit 191, the control unit 252 supplies the offset information of the screen unit to the 3D generation unit 251.

[Detailed configuration example of menu generator]
The menu generation unit 232 of the playback device 210 is configured in the same manner as the subtitle generation unit 231 of FIG. 35 except that the processing target is not the subtitle data but the menu data, and thus illustration is omitted. However, the control unit of the menu generation unit 232 reads the set offset command included in the ICS from the composition buffer in response to a command request corresponding to the offset change button from the control unit 161, and transmits the set offset command to the control unit 161.

[Description of playback device processing]
The playback processing, 3D graphics generation processing, subtitle offset change processing, and offset control processing by the playback apparatus 210 are respectively shown in FIG. 15 playback processing, FIG. 16 3D graphics generation processing, FIG. 29 offset change processing, and FIG. Since this is the same as the offset control processing of FIG.

  FIG. 36 is a flowchart for explaining the details of the caption generation processing in step S41 of FIG.

  The processes in steps S141 through S145 in FIG. 36 are the same as the processes in steps S61 through S65 in FIG.

  In step S146, the 3D generation unit 251 generates a right-eye caption object and a left-eye caption object from the caption objects corresponding to each ODS based on the offset information in units of screens and the offset information in units of ODS from the control unit 252. . Then, the process proceeds to step S147.

  The processing in steps S147 through S153 is the same as the processing in steps S67 through S73 in FIG.

  The menu generation process in step S42 in FIG. 16 by the playback apparatus 210 is performed in the same manner as the caption generation process in FIG. 36 except that the processing target is not the caption data but the menu data, and thus description thereof is omitted. To do.

[Subtitle 3D display example]
FIG. 37 is a diagram illustrating an example of subtitles displayed in 3D on the display unit 51 of the playback apparatus 210.

  As shown in FIG. 37A, in the playback apparatus 210, an offset change button 195 as a 3D image having a predetermined length in a predetermined depth direction is displayed on the display unit 51 based on the offset information in units of screens and the offset information in units of ODS. Provided on the screen.

  Also, the playback device 210 shifts the subtitles corresponding to each ODS in the opposite direction based on the offset information in ODS units, and further reverses all the subtitles in the screen based on the offset information in screen units described in the PCS. A subtitle object of a subtitle obtained as a result of shifting each is generated. Then, the playback device 210 sets the caption object as a right-eye caption object and a left-eye caption object.

  As a result, in the example of FIG. 37A, caption # 1 and caption # 2 as 3D images having the same depth direction and different lengths in the depth direction are further displayed on the screen. The length of the caption # 1 in the depth direction is the length in the depth direction corresponding to the offset information in the ODS unit described in the ODS of the caption # 1 and the screen unit described in the PCS of the screen including the caption # 1. This is the sum of the lengths in the depth direction corresponding to the offset information.

  Note that the length in the depth direction of subtitle # 2 is also the same as in the case of subtitle # 1, the length in the depth direction corresponding to the offset information in ODS units of subtitle # 2, and the screen unit of the screen including subtitle # 2. Is the sum of the lengths in the depth direction corresponding to the offset information.

  In the screen of FIG. 37A, when the user instructs to change the offset by operating the offset change button 195 using the input unit 21, the screen of the display unit 51 is changed to the screen shown in FIG. 37B.

  Specifically, when the offset change button 195 is operated, the playback apparatus 210 stores the offset change information in units of subtitle screens described in the set offset command included in the ICS corresponding to the offset change button 195 in the register. 161A. Then, the offset information of the screen unit represented by the vector obtained as a result of adding only the vector represented by the offset change information of the screen unit to the vector represented by the currently set screen unit offset information is the new offset information of the screen unit. Set as As a result, the length in the depth direction of caption # 1 and caption # 2 increases in the depth direction by a length corresponding to the offset change information in units of screens.

<Fifth embodiment>
[Configuration Example of Display Set in Fifth Embodiment of Disc]
FIG. 38 is a diagram showing a configuration example of a display set of menu data in the fifth embodiment of the disk to which the present invention is applied.

  As shown in FIG. 38, in the disc 301, offset information in units of screen is described in the ICS like the disc 11, and offset information in units of ODS is described in the ODS like the disc 81.

  On the disc 301, a button unit set offset command is described in the PCS. The button unit set offset command is a navigation command for setting offset change information for each ODS unit including offset change information for each menu button, that is, for each ODS unit. Specifically, the button unit set offset command describes a button ID and offset change information of the menu button specified by the button ID.

  As described above, in the disc 301, the button-unit set offset command is described in the ICS, so that a playback device 310 (described later) that plays the disc 301 can change the offset information in units of menu buttons.

  The configuration of the display set of subtitle data recorded on the disc 301 is the same as the configuration of the display set of subtitle data recorded on the disc 11 shown in FIG.

[Detailed configuration example of playback device]
FIG. 39 is a block diagram illustrating a configuration example of the playback device 310 that plays back the above-described disc 301.

  39, the same components as those in FIG. 34 are denoted by the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 310 in FIG. 39 is mainly that a control unit 311 is provided instead of the control unit 161, and a playback unit 312 is provided instead of the playback unit 211. Different from the configuration. The configuration of the playback unit 312 is different from the configuration of FIG. 34 in that a 3D graphics generation unit 321 is provided instead of the 3D graphics generation unit 221.

  The control unit 311 controls the reproduction unit 312 according to a command from the input unit 21. Also, the control unit 311 requests the 3D graphics generation unit 321 for a set offset command corresponding to the menu button in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 311 supplies the menu generation unit 331 with the menu button unit offset change information and the button ID described in the button unit set offset command transmitted from the menu generation unit 331 as a result.

  The 3D graphics generation unit 321 includes the caption generation unit 41 and the menu generation unit 331 illustrated in FIG. Similarly to the menu generation unit 232 of FIG. 34, the menu generation unit 331 uses the PES packet of the menu data supplied from the PID filter 33, and uses the right-eye offset information based on the offset information in units of screens and the offset information in units of ODS. Menu data and menu data for the left eye are generated. Then, the menu generation unit 331 supplies the right-eye menu data and the left-eye menu data to the 3D display data generation unit 36 as 3D menu data.

  Also, the menu generation unit 331 transmits a button unit set offset command included in the ICS to the control unit 311 in response to a command request corresponding to the offset change button 195 from the control unit 311. Then, the menu generation unit 331 updates the offset information in ODS units of the menu button specified by the button ID based on the offset change information and button ID in the menu button unit transmitted from the control unit 311 as a result. .

[Detailed configuration example of menu generator]
FIG. 40 is a block diagram illustrating a detailed configuration example of the menu generation unit 331 of FIG.

  The menu generation unit 331 in FIG. 40 includes an encoded data buffer 341, a stream graphics generation unit 342, an object buffer 343, a 3D generation unit 344, a right-eye graphics plane 345, a left-eye graphics plane 346, a CLUT 347, and a composition buffer. 348 and a control unit 349.

  In the configuration illustrated in FIG. 40, the configuration other than the control unit 349 is the same as the configuration of the menu generation unit 232 in FIG.

  The control unit 349 reads out offset information in increments of screens included in the ICS from the composition buffer 348 and supplies it to the 3D generation unit 344. Also, the control unit 349 instructs the right-eye graphics plane 345 to transfer at the timing based on the PTS included in the PES packet header, and also instructs the left-eye graphics plane 346 to transfer. Further, the control unit 349 reads the PDS from the composition buffer 348 and supplies it to the CLUT 347.

  In addition, the control unit 349 reads out offset information in units of ODS included in each ODS from the composition buffer 348 and supplies the information to the 3D generation unit 344. The control part 349 controls each part according to the command from the control part 311 (FIG. 39).

  Further, the control unit 349 reads a button unit set offset command included in the ICS from the composition buffer 348 in response to a command request corresponding to the offset change button 195 from the control unit 311, and transmits it to the control unit 311. Further, the control unit 349 receives the offset change information and button ID for each menu button transmitted from the control unit 311 as a result. The control unit 349 updates the offset information for each ODS based on the received offset change information for each menu button and the currently set offset information of the ODS corresponding to the button ID transmitted together with the offset information. To do. Then, the control unit 349 supplies the ODS unit offset information to the 3D generation unit 344.

[Description of playback device processing]
The playback process and 3D graphics generation process by the playback apparatus 310 are the same as the playback process of FIG. 15 and the 3D graphics generation process of FIG. The subtitle generation process and the subtitle offset change process performed by the playback apparatus 310 are the same as the subtitle generation process in FIG. 36 and the offset change process in FIG.

  FIG. 41 is a flowchart for explaining menu button offset change processing by the menu generation unit 331 of the playback apparatus 310. This menu button offset change process starts when the control unit 311 requests the menu generation unit 331 to issue a command corresponding to the offset change button 195 in response to a command corresponding to the operation of the offset change button 195 from the input unit 21. Is done.

  In step S171 of FIG. 41, the control unit 349 reads a button unit set offset command included in the ICS from the composition buffer 348 in response to a command request corresponding to the offset change button 195 from the control unit 311.

  In step S172, the control unit 349 transmits the button unit set offset command read in step S171 to the control unit 311. The control unit 311 transmits, to the control unit 349, the offset change information and button ID for each menu button described in the button unit set offset command transmitted from the control unit 349.

  In step S173, the control unit 349 receives the offset change information and button ID for each menu button from the control unit 311. The control unit 349 recognizes the ODS corresponding to the button ID received from the control unit 311 based on the button ID included in the ICS held in the composition buffer 348.

  In step S174, the control unit 349 generates a new offset for each ODS unit based on the offset change information for each menu button received from the control unit 311 and the currently set offset information for the ODS corresponding to the menu button. Set the information. Then, the control unit 349 supplies the ODS unit offset information to the 3D generation unit 344.

  In step S175, the 3D generation unit 344 generates a right-eye menu object and a left-eye menu object from the menu object based on the offset information in ODS units supplied from the control unit 349, and the process proceeds to step S176. The processing in steps S176 to S182 is the same as the processing in steps S67 to S73 in FIG. 17 except that the processing target is not caption data but menu data, and thus description thereof is omitted.

  FIG. 42 is a flowchart for explaining offset control processing by the playback device 310. This offset control process is started when the control unit 311 requests the menu generation unit 331 for a command corresponding to the offset change button 195 in response to a command corresponding to the operation of the offset change button 195 from the input unit 21. .

  In step S201 in FIG. 42, the control unit 311 determines whether a button unit set offset command has been transmitted from the menu generation unit 331 in response to a request. When it is determined in step S201 that the button unit set offset command has been transmitted, in step S202, the control unit 311 generates the menu button unit offset change information and button ID described in the button unit set offset command as a menu. The data is transmitted to the unit 331, and the process ends.

  On the other hand, if it is determined in step S201 that the button unit set offset command has not been transmitted, the process ends.

[Example of 3D display of menu button]
FIG. 43 is a diagram illustrating an example of menu buttons displayed in 3D on the display unit 51 of the playback apparatus 310.

  The playback device 310 shifts the menu buttons corresponding to each ODS in the opposite direction based on the offset information in ODS units, and further shifts all the menu buttons in the screen in the opposite direction based on the offset information in screen units. Create a menu button object for the resulting menu button. Then, the playback device 310 sets the menu button objects as a right-eye menu button object and a left-eye menu button object.

  As a result, in the example of FIG. 43A, the menu button # 1, the menu button # 2, and the offset change button 195 are displayed on the screen as 3D images having the same depth direction and different lengths in the depth direction. Here, in order to make the explanation easy to understand, the offset change button 195 is described, but the offset change button 195 is the menu button # 3.

  The length in the depth direction of the menu button # 1 is the length in the depth direction corresponding to the offset information in the ODS unit of the menu button # 1 and the depth direction corresponding to the offset information in the screen unit including the menu button # 1. It is the sum of lengths.

  Note that the lengths of the menu button # 2 and the offset change button 195 in the depth direction are the same as the menu button # 1, and the length corresponding to the offset information in ODS units of the menu button # 2 or the offset change button 195. , The sum of lengths corresponding to the offset information for each screen of the screen including the menu button # 2 and the offset change button 195. However, in the example of FIG. 43, since the offset value included in the offset information of the ODS unit of the menu button # 2 and the offset change button 195 is 0, the length in the depth direction of the menu button # 2 and the offset change button 195 This is the length corresponding to the offset information of the screen unit including the menu button # 2 and the offset change button 195.

  In the screen of FIG. 43A, when the user instructs to change the offset by operating the offset change button 195 using the input unit 21, the screen of the display unit 51 is changed to the screen shown in FIG. 43B.

  Specifically, when the offset change button 195 is operated, the playback apparatus 310 indicates the offset change information in units of menu buttons in the button unit set offset command in the vector indicated by the offset information in units of ODS currently set. Add vectors. Then, offset information in ODS units represented by the vector obtained as a result of addition is set as new offset information in ODS units. As a result, the length in the depth direction of the menu button # 1, the menu button # 2, and the offset change button 195 is increased in the depth direction by a length corresponding to the offset change information for each menu button in the button unit set offset command. To do.

  In the example of FIG. 43, since the offset change information of the menu button # 2 and the offset change button 195 is not included in the button unit set offset command, the distance in the depth direction of the menu button # 2 and the offset change button 195 is offset. There is no change before and after the change button 195 is operated.

<Sixth embodiment>
[Configuration Example of Display Set in Sixth Embodiment of Disc]
FIG. 44 is a diagram showing a configuration example of a display set of subtitle data in the sixth embodiment of the disc to which the present invention is applied, and FIG. 45 is a diagram showing a configuration example of a display set of menu data.

  As shown in FIG. 44, in the disc 401, similarly to the disc 11, offset information for each screen is described in the PCS.

  Also, as shown in FIG. 45, in the disc 401, as in the case of the disc 11, offset information for each screen is described in the ICS. In the disk 401, a 2D display command is described in the ICS.

  The 2D display command is a navigation command for changing a subtitle or menu button displayed in 3D to 2D display. In the sixth embodiment, a screen unit offset value of a caption or menu button is ignored by a 2D display command.

  That is, in the case of subtitles, the offset value described in the PCS, the offset value for each plane set by the navigation command, and the offset value set for each ODS are ignored. Similarly, in the case of a menu button, the offset value described in the ICS, the offset value for each plane set by the navigation command, and the offset value set for each ODS are ignored. If an offset value is set for each menu button by the navigation command, that value is also ignored, and the playback device 410 (described later) displays the subtitles and menu to be displayed in 3D in 2D.

  As described above, since the 2D display command is described in the disc 401, the playback device 410 can change the display of subtitles and menu buttons from 3D display to 2D display. Similarly, switching from 2D display to 3D display can be changed again as necessary.

[Detailed configuration example of playback device]
FIG. 46 is a block diagram illustrating a configuration example of the playback device 410 that plays back the above-described disc 401.

  46, the same reference numerals are given to the same components as those in FIG. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 410 in FIG. 46 is mainly that a control unit 411 is provided instead of the control unit 22 and a playback unit 412 is provided instead of the playback unit 23. Different from the configuration. The configuration of the playback unit 412 is different from the configuration of FIG. 13 in that a 3D graphics generation unit 421 is provided instead of the 3D graphics generation unit 35.

  The control unit 411 controls the reproduction unit 412 according to a command from the input unit 21. Further, the control unit 411 requests the 3D graphics generation unit 421 for a command corresponding to the menu button in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 411 supplies a command for invalidating the offset value to the 3D graphics generation unit 421 in accordance with the 2D display command transmitted as a result.

  The 3D graphics generation unit 421 includes a caption generation unit 431 and a menu generation unit 432. The caption generation unit 431 uses the PES packet of caption data supplied from the PID filter 33 to generate right-eye caption data and left-eye caption data based on offset information in units of screens. Then, the caption generation unit 431 supplies the right-eye caption data and the left-eye caption data to the 3D display data generation unit 36 as 3D caption data. Depending on the playback device, if the 2D display command has already been received at this time, the offset value is not reflected, and the right-eye caption data and the left-eye caption data are made the same to perform 2D processing. The following is an example in which the 2D processing is performed after the 3D processing is once performed.

  The caption generation unit 431 regards the offset value of the caption screen unit as 0 in accordance with the command transmitted from the control unit 411, and updates the offset value of the offset information of the caption screen unit.

  The menu generation unit 432 generates menu data for the right eye and menu data for the left eye based on the offset information in units of screens using the PES packet of the menu data supplied from the PID filter 33. Then, the menu generation unit 432 supplies the menu data for the right eye and the menu data for the left eye to the 3D display data generation unit 36 as 3D menu data. Depending on the playback device, if the 2D display command has already been received at this time, the offset value is not reflected, and the right-eye caption data and the left-eye caption data can be made the same to perform 2D processing. .

  In addition, the menu generation unit 432 transmits a 2D display command included in the ICS to the control unit 411 in response to a command request corresponding to the 2D display button that is a menu button for instructing 2D display from the control unit 411. To do. Then, the menu generation unit 432 considers the offset value of the screen button unit of the menu button as 0 according to the command transmitted from the control unit 411 as a result, and updates the offset value of the offset information of the menu button unit of screen.

[Detailed configuration example of subtitle generator]
FIG. 47 is a block diagram illustrating a detailed configuration example of the caption generation unit 431 of the playback apparatus 410.

  47, the same components as those in FIG. 14 are denoted by the same reference numerals. The overlapping description will be omitted as appropriate.

  47 differs from the configuration of FIG. 14 mainly in that a control unit 441 is provided instead of the control unit 69.

  Similar to the control unit 69, the control unit 441 reads offset information in increments of screens included in the PCS from the composition buffer 68 and supplies it to the 3D generation unit 64. Similarly to the control unit 69, the control unit 441 instructs transfer to the right-eye graphics plane 65 and the left-eye graphics plane 66 at a timing based on the PTS included in the PES packet header. Further, like the control unit 69, the control unit 441 reads the PDS from the composition buffer 68 and supplies it to the CLUT 67.

  Moreover, the control part 441 controls each part according to the instruction | command from the control part 411 (FIG. 46). Further, the control unit 441 receives a command for invalidating the offset value transmitted from the control unit 411. The control unit 411 sets 0 as a new subtitle screen offset value in accordance with the received command. The control unit 441 supplies offset information including the offset value in units of screens to the 3D generation unit 64.

[Detailed configuration example of menu generator]
Since the menu generation unit 432 of the playback apparatus 410 is configured in the same manner as the caption generation unit 431 in FIG. 47 except that the processing target is not caption data but menu data, illustration is omitted. However, in response to a command request corresponding to the 2D display button from the control unit 411, the control unit of the menu generation unit 432 reads the 2D display command included in the ICS from the composition buffer, and transmits the 2D display command to the control unit 411.

[Description of playback device processing]
The playback process, 3D graphics generation process, and caption generation process performed by the playback apparatus 410 are the same as the playback process of FIG. 15, the 3D graphics generation process of FIG. 16, and the caption generation process of FIG. To do.

  FIG. 48 is a flowchart for explaining caption display change processing by the caption generation unit 431 of the playback device 410. This caption display change process is started when the control unit 411 transmits a command to invalidate the offset value in response to a command corresponding to the operation of the 2D display button from the input unit 21.

  In step S233 of FIG. 48, the control unit 441 receives 0 as an offset value for each caption screen from the control unit 411 (receives a command to invalidate the offset value). In step S232, the control unit 441 regards the subtitle screen unit offset value as 0 in accordance with the command received from the control unit 411, and updates the screen unit offset information. Then, the control unit 441 supplies the updated offset information to the 3D generation unit 64, and the process proceeds to step S233.

  In step S233, the 3D generation unit 64 generates a right-eye caption object and a left-eye caption object from the caption object based on the screen-unit offset information supplied from the control unit 441, and the process proceeds to step S234. The processing in steps S234 to S240 is the same as the processing in steps S67 to S73 in FIG.

  Note that the menu display change process by the menu generation unit 432 is performed in the same manner as the subtitle display change process of FIG. 48 except that the processing target is not the caption data but the menu data, and thus description thereof is omitted.

  FIG. 49 is a flowchart for explaining the details of the display control processing by the playback device 410. This display control processing is started when the control unit 411 requests a command corresponding to the 2D display button from the menu generation unit 432 in response to a command corresponding to the operation of the 2D display button from the input unit 21.

  In step S251 of FIG. 49, the control unit 411 determines whether or not the 2D display command transmitted from the menu generation unit 432 in response to the request is a subtitle 2D display command. If it is determined in step S251 that the command is a subtitle 2D display command, in step S252, the control unit 411 sets 0 as the subtitle screen offset value described in the subtitle 2D display command as a subtitle generation unit 431. Send to. That is, the control unit 411 supplies a command for invalidating the offset value to the caption generation unit 431. Then, the process ends.

  On the other hand, if it is determined in step S251 that the command is not a caption 2D display command, that is, if a menu button 2D display command is transmitted from the menu generation unit 432, the process proceeds to step S253. In step S <b> 253, the control unit 411 transmits 0 to the menu generation unit 432 as an offset value for each screen of the menu button described in the 2D display command of the menu button. That is, the control unit 411 supplies a command to invalidate the offset value to the menu generation unit 432. Then, the process ends.

<Seventh embodiment>
FIG. 50 is a block diagram showing a configuration example of a reproducing apparatus for reproducing a disc according to the seventh embodiment to which the present invention is applied.

  Of the configurations shown in FIG. 50, configurations the same as the configurations in FIG. 13 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 460 of FIG. 50 is mainly in that a control unit 461 is provided instead of the control unit 22, an OSD generation unit 462 is newly provided, and instead of the playback unit 23. 13 is different from the configuration of FIG. 13 in that a reproduction unit 463 is provided. The configuration of the playback unit 463 is different from the configuration of FIG. 13 in that a 3D display data generation unit 471 is provided instead of the 3D display data generation unit 36.

  The playback device 460 is a playback device that plays back the disc 451. In the disk 451, among the offset information described in the disk 451, the one in which the 3D display based on the offset information is closest to the front is described in the index file as the maximum offset information. The playback device 460 displays an OSD (On Screen Display) image such as a menu unique to the playback device 460 on the front side based on a command from the user and maximum offset information.

  Specifically, the control unit 461 controls the playback unit 463 according to a command from the input unit 21. For example, the control unit 461 controls the drive 31 in response to an OSD display command from the input unit 21, reads the maximum offset information described in the index file of the disk 451, and supplies it to the OSD generation unit 462. .

  The OSD generation unit 462 generates OSD image data from predetermined OSD image data stored in a memory (not shown) built in the playback device 460 based on the maximum offset information supplied from the control unit 461. . The playback device 460 may hold image data for the right eye and the left eye in order to display the OSD in 3D in the storage area of the memory in the playback device 460. The following example shows a configuration for displaying the OSD in 3D.

  Specifically, the OSD generation unit 462 uses predetermined OSD image data stored in a memory (not shown) as OSD image data for the left eye. The OSD generation unit 462 generates OSD image data of an OSD image obtained as a result of shifting the OSD image corresponding to the OSD image data for the left eye by a value larger than the offset value in the offset direction of the maximum offset information. . Then, the OSD generation unit 462 sets the OSD image data as image data for the right eye. The OSD generation unit 462 supplies the OSD image data for the right eye and the OSD image data for the left eye to the 3D display data generation unit 471 of the playback unit 463 as 3DOSD image data.

  The 3D display data generation unit 471 converts the 3D video data from the 3D video generation unit 34, the 3D subtitle data and 3D menu data from the 3D graphics generation unit 35, and the 3D OSD image data from the OSD generation unit 462 to the left and right. Combining for each eye data. The 3D display data generation unit 471 supplies the display data for the left eye and the display data for the right eye obtained as a result of the synthesis to the display unit 51 as 3D display data.

[Description of playback device processing]
The playback process, 3D graphics generation process, and caption generation process by the playback device 460 are the same as the playback process of FIG. 15, the 3D graphics generation process of FIG. 16, and the caption generation process of FIG. To do.

  FIG. 51 is a flowchart for explaining OSD display processing by the playback device 460. This OSD display process is started when an OSD image display is instructed from the input unit 21.

  In step S271 of FIG. 51, the control unit 461 controls the drive 31, reads the maximum offset information from the index file on the disk 451, and supplies it to the OSD generation unit 462.

  In step S272, the OSD generation unit 462 reads predetermined OSD image data as left-eye OSD image data from a memory (not shown). In step S273, the OSD generation unit 462 generates right-eye OSD image data from the left-eye OSD image data based on the maximum offset information.

  In step S274, the OSD generation unit 462 supplies the left-eye OSD image data and the right-eye OSD image data to the 3D display data generation unit 471 as 3DOSD image data. In step S275, the 3D display data generation unit 471 3D video data from the 3D video generation unit 34, 3D subtitle data and 3D menu data from the 3D graphics generation unit 35, and 3D OSD image data from the OSD generation unit 462 Is synthesized. Then, the 3D display data generation unit 471 supplies the display data for the left eye and the display data for the right eye obtained as a result of the synthesis to the display unit 51 as 3D display data.

  In step S276, the display unit 51 alternates between a left-eye image corresponding to left-eye display data and a right-eye image corresponding to right-eye display data based on the 3D display data supplied from the 3D display data generation unit 471. Display at the same time. Then, the process ends.

  As described above, since the maximum offset information is described on the disc 451, the playback device 460 can display the OSD image in the foreground based on the maximum offset information. Thereby, the user can surely visually recognize the OSD image.

  Further, since the maximum offset information is described in the index file of the disk 451, the display position in the depth direction of the OSD image can be made constant on one disk 451. As a result, it is possible to prevent user confusion caused by changing the display position of the OSD image in the depth direction.

  In the index file, an offset value based on the maximum offset information may be described instead of the maximum offset information. For example, the index file may describe an offset value in which the offset direction is limited to the positive direction so that the display position is closer to the front side than the 3D display position corresponding to the maximum offset information. In this case, for example, when the offset direction of the maximum offset information is a negative direction, 0 is described in the index file as the offset value.

<Eighth embodiment>
[Configuration Example of Display Set in Eighth Embodiment of Disc]
FIG. 53 is a diagram showing a configuration example of epochs of caption data in the eighth embodiment of the disc to which the present invention is applied.

  In the disc 501 of FIG. 53, two AV streams of an AV stream for the left eye and an AV stream for the right eye are recorded. As shown in FIG. 53, the epoch structures of the AV stream for the left eye and the AV stream for the right eye that are reproduced simultaneously are the same. That is, the number of display sets for the left-eye epoch and the number of display sets for the right-eye epoch that are simultaneously played back are the same.

  Also, between the left-eye display set and the right-eye display set that are played back simultaneously, the PTS of each segment is the same. Thereby, the display timing of the subtitle for the left eye and the subtitle for the right eye can be made simultaneously.

  The PTS included in the PES packet header of the PCS is obtained based on the ODS decoding time corresponding to the PCS, the time required for drawing the subtitles corresponding to the ODS, and the time required for window drawing. Therefore, between the left-eye display set and the right-eye display set that are played back simultaneously, the vertical and horizontal sizes of the subtitles corresponding to the ODS with the same sub-image ID and the vertical and horizontal sizes of the windows with the same window ID are the same. is there. As a result, the PTS included in the PES packet header of the PCS can be synchronized between the left-eye display set and the right-eye display set without any contradiction.

  Further, the sub-image ID and the window ID are the same between the left-eye display set and the right-eye display set that are reproduced simultaneously. As a result, images corresponding to the same subtitle are displayed at the same time, so that the user can view the 3D subtitle.

  Further, between the left-eye display set and the right-eye display set that are played back simultaneously, the number of segments excluding ODS is the same, and the DTS of each segment is the same.

  Note that the shapes of subtitles and menu buttons corresponding to the same sub-image ID may be different. Also, the PDS may be different.

  Since the epoch structure of the menu data and the relationship between the left-eye display set and the right-eye display set that are played back simultaneously are the same except that the PCS replaces the ICS, the description thereof is omitted.

  However, if the menu button is animated at a constant frame rate when selected by the user, the animation frame rate of the menu button for the left eye and the menu button for the right eye needs to be the same. Therefore, the field for determining the frame rate of the animation included in the ICS is the same between the display set for the left eye and the display set for the right eye corresponding to such a menu button. Thereby, the menu button for the left eye and the menu button for the right eye are always correspondingly animated at a constant frame rate, so that the user can see the 3D menu button animated at a constant frame rate. .

  Also, when an animation called slide-in, etc., called effects is performed at the start of displaying the menu button, etc., the number of frames and the interval of the animation need to be the same for the menu button for the left eye and the menu button for the right eye. is there. Therefore, between the left-eye display set and the right-eye display set corresponding to such a menu button, the fields describing the number of frames and the interval of the animation at the time of the effect included in the ICS are the same. Thereby, the menu button for the left eye and the menu button for the right eye are always effected correspondingly, so that the user can see the 3D menu button to be effected.

[Description of window]
FIG. 54 is a diagram illustrating a window corresponding to a display set of subtitle data.

  As shown in FIG. 54, two or less windows are arranged in the screen corresponding to each display set of caption data so as not to overlap each other. Subtitles corresponding to ODS are displayed only in the window area. Therefore, the subtitles displayed in the left window in the screen of FIG. 54 are displayed only in the shaded area in the window, and the other portions are not displayed.

[Example of playback device configuration]
FIG. 55 is a block diagram illustrating a configuration example of a playback device 510 that plays back the above-described disc 501.

  Of the configurations shown in FIG. 55, configurations the same as the configurations in FIG. 13 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback apparatus 510 in FIG. 55 is mainly in that a control unit 511 is provided instead of the control unit 22, and a playback unit 512 is provided instead of the playback unit 23. And different. The playback unit 512 includes a PID filter 521, a 3D video generation unit 522, and a 3D graphics generation unit 523 instead of the PID filter 33, the 3D video generation unit 34, and the 3D graphics generation unit 35, respectively. This is different from the configuration of FIG.

  The control unit 511 controls the reproduction unit 512 according to a command from the input unit 21. For example, the control unit 511 controls the drive 31 of the playback unit 512 to read an index file, movie object file, playlist file, clip information file, and the like from the disc 501. Further, the control unit 511 recognizes the packet having the packet number of the AV stream for the left eye and the AV stream for the right eye to be reproduced based on the read clip information file. Then, the control unit 511 controls the drive 31 to read out the left-eye AV stream and the right-eye AV stream that are composed of the packets.

  Based on the PID of each packet of the left-eye AV stream from the read buffer 32, the PID filter 521 extracts the left-eye video data and the left-eye caption data PES packets included in the left-eye AV stream, respectively. To do. Also, the PID filter 521 extracts the left-eye menu data and the audio data PES packet included in the left-eye AV stream, based on the PID of each packet of the left-eye AV stream.

  The PID filter 521 also converts the right-eye video data and the right-eye subtitle data PES packets included in the right-eye AV stream based on the PID of each packet of the right-eye AV stream from the read buffer 32, respectively. Extract. Further, the PID filter 521 extracts the PES packet of the menu data for the right eye included in the AV stream for the right eye based on the PID of each packet of the AV stream for the right eye.

  The 3D video generation unit 522 decodes the PES packet of the video data for the left eye and the PES packet of the video data for the right eye supplied from the PID filter 521. Then, the 3D video generation unit 522 supplies the left-eye video data and the right-eye video data obtained as a result of decoding to the 3D display data generation unit 36 as 3D video data.

  The 3D graphics generation unit 523 includes a caption generation unit 531 and a menu generation unit 532. The caption generation unit 531 decodes the left-eye caption data and the right-eye caption data supplied from the PID filter 521. Then, the caption generation unit 531 supplies the left-eye caption data and the right-eye caption data obtained as a result of the decoding to the 3D display data generation unit 36 as 3D caption data.

  The menu generation unit 532 decodes the left-eye menu data and the right-eye menu data PES packet supplied from the PID filter 521. Then, the menu generation unit 532 supplies the left-eye menu data and the right-eye menu data obtained as a result of the decoding to the 3D display data generation unit 36 as 3D menu data.

[Detailed configuration example of subtitle generator]
FIG. 56 is a block diagram illustrating a detailed configuration example of the caption generation unit 531 of FIG.

  In FIG. 55, the caption generation unit 531 includes a right-eye decoder 541-1, a left-eye decoder 541-2, a right-eye graphics plane 542-1, a left-eye graphics plane 542-2, CLUT 543-1, and CLUT 543-2. Consists of.

  The right-eye decoder 541-1 includes an encoded data buffer 561-1, a stream graphics generation unit 562-1, an object buffer 563-1, a composition buffer 564-1, and a control unit 565-1.

  The encoded data buffer 561-1 holds a segment of the PES packet of the caption data for the right eye supplied from the PID filter 521. The encoded data buffer 561-1 reads the held segment and supplies it to the stream graphics generation unit 562-1.

  The stream graphics generation unit 562-1 decodes the ODS supplied from the encoded data buffer 561-1. Then, the stream graphics generation unit 562-1 supplies the uncompressed right-eye caption data including the index color obtained as a result to the object buffer 563-1 as the right-eye caption object. In addition, the stream graphics generation unit 562-1 supplies the PDS, PCS, and WDS supplied from the encoded data buffer 561-1 to the composition buffer 564-1.

  The object buffer 563-1 holds the right-eye caption object supplied from the stream graphics generation unit 562-1. The object buffer 563-1 deletes the stored right-eye caption object for each epoch. Further, the object buffer 563-1 reads the stored right-eye caption object and supplies it to the right-eye graphics plane 542-1 in accordance with the control from the control unit 565-1.

  The composition buffer 564-1 holds the PDS, PCS, and WDS supplied from the stream graphics generation unit 562-1.

  The control unit 565-1 monitors the storage state of the right-eye caption object for one screen by the right-eye graphics plane 542-1 and controls the completion of storage of the right-eye caption object for one screen. Notify The control unit 565-1 instructs transfer to the right-eye graphics plane 542-1 based on the PTS included in the PES packet header or the notification of the completion of the storage of the left-eye caption object from the control unit 565-2. To do. Further, the control unit 565 reads the PDS from the composition buffer 564 and supplies it to the CLUT 543-1.

  Further, the control unit 565-1 controls each unit in accordance with a command from the control unit 511 (FIG. 55).

  The left-eye decoder 541-2 includes an encoded data buffer 561-2, a stream graphics generation unit 562-2, an object buffer 563-2, a composition buffer 564-2, and a control unit 565-2. The left-eye decoder 541-2 is configured in the same manner as the right-eye decoder 541-1, and performs the same processing except that the processing target is subtitle data for the left eye.

  The right-eye graphics plane 542-1 holds the right-eye caption object for one screen supplied from the object buffer 563-1. The right-eye graphics plane 542-1 erases the retained right-eye caption object for each epoch. Also, the right-eye graphics plane 542-1 reads the stored right-eye caption object in accordance with a transfer instruction from the control unit 565-1 and supplies the read right-eye caption object to the CLUT 543-1.

  The left-eye graphics plane 542-2 holds the left-eye caption object for one screen supplied from the object buffer 563-2. The left-eye graphics plane 542-2 erases the retained left-eye caption object for each epoch. The left-eye graphics plane 542-2 reads out the retained left-eye caption object in accordance with an instruction from the control unit 565-2, and supplies it to the CLUT 543-2.

  The CLUT 543-1 stores a table in which index colors are associated with Y, Cr, and Cb values based on the PDS supplied from the control unit 565-1. The CLUT 543-1 converts the index color of the right-eye caption object supplied from the right-eye graphics plane 542-1 into image data composed of Y, Cr, and Cb values based on the stored table. Then, the CLUT 543-1 supplies the image data to the 3D display data generation unit 36 as the right-eye caption data.

  The CLUT 543-2 stores a table in which index colors are associated with Y, Cr, and Cb values based on the PDS supplied from the control unit 565-2. Based on the stored table, the CLUT 543-2 converts the index color of the left-eye caption object supplied from the left-eye graphics plane 542-2 into image data including Y, Cr, and Cb values. The CLUT 543-2 supplies the image data to the 3D display data generation unit 36 as left-eye caption data.

  As described above, the caption generation unit 531 clears the object buffer 563-1, the object buffer 563-2, the right-eye graphics plane 542-1, and the left-eye graphics plane 542-2 in units of epochs. However, in the disc 401, since the number of display sets constituting the epoch is the same for the AV stream for the right eye and the AV stream for the left eye, only one of the subtitles for the right eye and the left eye is displayed. Never stop. As a result, subtitles can always be displayed in 3D.

  FIG. 57 is a diagram for describing a transfer instruction based on a completion notification by the control units 565-1 and 565-2.

  The control unit 565-1 monitors the storage state of the right-eye caption object for one screen by the right-eye graphics plane 542-1. When storage of the right-eye caption object for one screen is completed in the right-eye graphics plane 542-1, the control unit 565-1 notifies the control unit 565-2 of the completion.

  Then, the control unit 565-1 waits for a completion notification from the control unit 565-2. That is, as shown in FIG. 57, the right-eye caption object for one screen and the left-eye caption object for one screen are aligned with the right-eye graphics plane 542-1 and the left-eye graphics plane 542-2, respectively. stand by. Upon receiving the completion notification, the control unit 565-1 instructs the right-eye graphics plane 542-1 to transfer.

  Similarly, the control unit 565-2 monitors the storage state of the left-eye caption object for one screen by the left-eye graphics plane 542-2. When storage of the left-eye caption object for one screen is completed in the left-eye graphics plane 542-2, the control unit 565-2 notifies the control unit 565-1 of the completion.

  Then, the control unit 565-2 waits for a completion notification from the control unit 565-1. Upon receiving the completion notification from the control unit 565-1, the control unit 565-2 instructs the left-eye graphics plane 542-2 to transfer.

  As described above, in the playback apparatus 510, the right-eye caption object for one screen and the left-eye caption object for one screen are aligned on the right-eye graphics plane 542-1 and the left-eye graphics plane 542-2, respectively. Will be transferred after.

  In this embodiment, the transfer from the right-eye graphics plane 542-1 and the left-eye graphics plane 542-2 is synchronized, but the transfer from the CLUTs 543-1 and 543-2 is synchronized. Also good.

[Detailed configuration example of menu generator]
Although illustration is omitted, the menu generation unit 532 is configured in the same manner as the caption generation unit 531 of FIG. 56 except that the processing target is not caption data but menu data.

  Accordingly, in the menu generation unit 532, the right-eye menu object for one screen and the left-eye menu object for one screen are transferred after being aligned on the right-eye graphics plane and the left-eye graphics plane, respectively.

  This ensures that the menu is displayed even when the display is not performed at the timing based on the PTS, such as when switching the screen structure, highlighting according to the selection of the menu button, erasing the menu button, or displaying additional menu buttons. 3D display of buttons can be performed.

[Processing of playback device]
FIG. 58 is a flowchart for explaining playback processing by the playback device 510. This reproduction process is started, for example, when the disk 501 is loaded in the drive 31.

  The processes in steps S301 through S304 in FIG. 58 are the same as the processes in steps S11 through S14 in FIG.

  After the process of step S304, the control unit 511 recognizes the packet numbers of the AV stream for the left eye and the AV stream for the right eye to be reproduced based on the playlist and the clip information file. Then, the control unit 511 instructs the drive 31 to reproduce the AV stream for the left eye and the AV stream for the right eye that are composed of packets having the packet number to be reproduced.

  In step S 305, the drive 31 reads the left-eye AV stream and the right-eye AV stream to be reproduced from the disc 501 and supplies them to the read buffer 32 in accordance with a command from the control unit 511. In step S306, the read buffer 32 holds the left-eye AV stream and the right-eye AV stream supplied from the drive 31.

  In step S307, the PID filter 521 extracts a PES packet based on the PID of each packet of the left-eye AV stream and the right-eye AV stream from the read buffer 32.

  Specifically, the PID filter 521 extracts the left-eye video data, left-eye caption data, left-eye menu data, and audio data PES packets based on the PID of each packet of the left-eye AV stream. . Further, the PID filter 521 extracts PES packets for the right-eye video data, the right-eye caption data, and the right-eye menu data based on the PID of each packet of the right-eye AV stream.

  In step S308, the 3D video generation unit 522 decodes the left-eye video data and the right-eye video data supplied from the PID filter 521, and generates 3D video data.

  In step S309, the 3D graphics generation unit 523 generates 3D caption data using the left-eye and right-eye caption data, and generates 3D menu data using the left-eye and right-eye menu data. Perform the generation process. Details of the 3D graphics generation processing will be described with reference to FIG. 59 described later.

  After the process of step S309, the process proceeds to step S310. The processing in steps S310 to S313 is the same as the processing in steps S20 to S23 in FIG.

  In FIG. 58, the playback process immediately after the disk 501 is mounted has been described. However, when a title corresponding to a movie object file other than the first play is played after the disk 501 is mounted, the same playback process is performed. However, in this case, the movie object file read in step S302 is a movie object file corresponding to the title number of the title to be reproduced in the index file.

  FIG. 59 is a flowchart for explaining details of the 3D graphics generation processing in step S309 of FIG.

  In step S341 in FIG. 59, the caption generation unit 531 performs caption generation processing for generating 3D caption data using the PES packets of the caption data for the left eye and the caption data for the right eye. Details of the caption generation processing will be described with reference to FIG.

  In step S342, the menu generation unit 532 performs menu generation processing for generating 3D menu data using the left-eye menu data and the right-eye menu data PES packet, and returns the processing to step S309 in FIG. And the process after step S310 is performed.

  FIG. 60 is a flowchart illustrating details of the caption generation processing in step S341 of FIG.

  In step S361 of FIG. 60, the right-eye decoder 541-1 performs right-eye caption object generation processing for generating a right-eye caption object using the PES packet of the right-eye caption data from the PID filter 521. Details of the right-eye caption object generation processing will be described with reference to FIG. 61 described later.

  In step S362, the left-eye decoder 541-2 performs a left-eye caption object generation process that generates a left-eye caption object using the PES packet of the left-eye caption data from the PID filter 521.

  In step S363, the control units 565-1 and 565-2 determine whether storage of the right-eye caption object and the left-eye caption object for one screen is completed. Specifically, the control units 565-1 and 565-2 complete the storage of one screen by the object buffers 563-1 and 563-2, and the control units 565-2 and 565-1 store one screen. It is determined whether or not the completion of storage is notified.

  If it is determined in step S363 that the storage of the right-eye caption object and the left-eye caption object for one screen has not been completed, the process waits until the storage is completed.

  On the other hand, if it is determined in step S363 that the right-eye caption object and the left-eye caption object for one screen have been stored, the control units 565-1 and 565-2 control the object buffer 563- 3 in step S364. 1 563-2 is instructed to transfer. As a result, the right-eye caption object for one screen and the left-eye caption object for one screen held in the object buffers 563-1 and 563-2 become the right-eye graphics plane 542-1 and the left-eye caption object. Each is transferred to the fix plane 542-2.

  In step S365, the CLUTs 543-1 and 543-2 convert the right-eye caption object from the right-eye graphics plane 542-1 and the left-eye caption object from the left-eye graphics plane 542-2 into image data, respectively.

  In step S366, the CLUT 543-1 outputs the right-eye caption data obtained as a result of the conversion in step S365 to the 3D display data generation unit 36, and the CLUT 543-2 outputs the left-eye caption data to the 3D display data generation unit 36. To do. Then, the process returns to step S341 in FIG. 59 and proceeds to step S342.

  Note that the menu generation process in step S342 in FIG. 59 is performed in the same manner as the caption generation process in FIG. 60 except that the processing target is not caption data but menu data, and thus the description thereof is omitted.

  FIG. 61 is a flowchart for explaining the details of the right-eye caption object generation processing in step S361 of FIG.

  In step S381 of FIG. 61, the encoded data buffer 561-1 holds a segment of the PES packet of the right-eye caption data supplied from the PID filter 521. In step S382, the encoded data buffer 561-1 reads the held segment and supplies the segment to the stream graphics generation unit 562-1.

  In step S383, the stream graphics generation unit 562-1 supplies the PCS, PDS, and WDS supplied from the encoded data buffer 561-1 to the composition buffer 564-1 and holds them.

  In step S384, the stream graphics generation unit 562-1 decodes the ODS supplied from the encoded data buffer 561-1. Then, the stream graphics generation unit 562-1 supplies the uncompressed right-eye caption data including the index color obtained as a result to the object buffer 563-1 as the right-eye caption object. In step S385, the object buffer 563-1 holds the right-eye caption object supplied from the stream graphics generation unit 562-1.

  In step S386, the object buffer 563-1 reads the stored right-eye caption object in accordance with the control from the control unit 565-1, supplies the read right-eye caption object to the right-eye graphics plane 542-1, and holds it. Then, the process returns to step S361 in FIG. 60 and proceeds to step S362.

  The left-eye caption object generation process in step S362 of FIG. 60 is the same as the right-eye caption object generation process of FIG. 61 except that the processing target is not the right-eye caption data but the left-eye caption data. The description is omitted.

  In addition, in this description, it is mentioned that another PDS may be provided between the display set for the right eye and the display set for the left eye that are played simultaneously, but the display set for the right eye that is played back simultaneously. The PDS may be the same between the left and right eye display sets. In this case, since only one CLUT is required, the mounting load of the playback device can be reduced.

<Ninth Embodiment>
[Configuration Example of Display Set in Ninth Embodiment of Disc]
FIG. 62 is a diagram showing a configuration example of the epoch of menu data in the ninth embodiment of the disk to which the present invention is applied.

  62, two AV streams of a left-eye AV stream and a right-eye AV stream are recorded as in the case of the disk 501 in FIG. As shown in FIG. 62, in the disc 601, the structure of the epoch of the menu data for the left eye is the same as the epoch of the menu data for the right eye, like the disc 501.

  The relationship between the left-eye display set and the right-eye display set that are played back simultaneously on the disc 601 is that the PDS is the same, and that the set offset command is described only in the left-eye ICS. Except for this, it is the same as the disk 501. In the ninth embodiment and the tenth embodiment described later, the offset information after the change is used as the offset change information.

  As described above, since the disc 601 is provided with the set offset command in the left-eye ICS, the playback device 610 (described later) for playing back the disc 601 has to display all subtitles and menu buttons in the screen corresponding to the ICS. The length in the depth direction can be changed.

  The subtitle data epoch structure and the relationship between the left-eye display set and the right-eye display set that are played back simultaneously are the same as those of the disc 501 except that the PDS is the same.

[Example of playback device configuration]
FIG. 63 is a block diagram illustrating a configuration example of a playback device 610 that plays back the disk 601 described above.

  Of the configurations shown in FIG. 63, configurations the same as the configurations in FIG. 55 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 510 in FIG. 63 is mainly in that a control unit 611 is provided instead of the control unit 511, and a playback unit 612 is provided instead of the playback unit 512. And different. The configuration of the playback unit 612 is different from the configuration of FIG. 55 in that a 3D graphics generation unit 621 is provided instead of the 3D graphics generation unit 523.

  Similar to the control unit 511, the control unit 611 controls the reproduction unit 612 according to a command from the input unit 21. Further, the control unit 611 requests a command corresponding to the menu button from the 3D graphics generation unit 621 in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 611 holds the offset change information in units of screens of subtitles and menu buttons described in the set offset command transmitted as a result in the built-in register 611A. The control unit 611 supplies the 3D graphics generation unit 621 with the offset change information in units of screens of subtitles and menu buttons held in the register 611A.

  Similarly to the register 161A, the register 611A is configured by PSR, and holds information such as subtitles and menu button offset change information.

  The 3D graphics generation unit 621 includes a caption generation unit 631 and a menu generation unit 632.

  Similarly to the caption generation unit 531 of FIG. 55, the caption generation unit 631 decodes the PES packets of the left-eye caption data and the right-eye caption data supplied from the PID filter 521. Similar to the caption generation unit 531, the caption generation unit 631 supplies the left-eye caption data and the right-eye caption data obtained as a result of decoding to the 3D display data generation unit 36 as 3D caption data.

  Also, the caption generation unit 631 updates the caption data for the left eye based on the offset change information for each caption screen transmitted from the control unit 611.

  Similarly to the menu generation unit 532 in FIG. 55, the menu generation unit 632 decodes the left-eye menu data and the right-eye menu data PES packet supplied from the PID filter 521. Similarly to the menu generation unit 532, the menu generation unit 632 supplies the left-eye menu data and the right-eye menu data obtained as a result of decoding to the 3D display data generation unit 36 as 3D menu data.

  Also, the menu generation unit 632 transmits a set offset command included in the ICS to the control unit 611 in response to a command request corresponding to the offset change button 195 from the control unit 611. Then, the menu generation unit 632 updates the menu data for the left eye based on the screen unit offset change information transmitted from the control unit 611 as a result.

[Detailed configuration example of subtitle generator]
FIG. 64 is a block diagram illustrating a detailed configuration example of the caption generation unit 631 of FIG.

  Of the configurations shown in FIG. 64, configurations the same as the configurations in FIG. 56 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  64 mainly includes a left-eye decoder 641 instead of the left-eye decoder 541-2, and a CLUT 642 instead of the CLUTs 543-1 and 543-2. This is different from the configuration of FIG. 56 in that a point and a depth adjustment unit 643 are newly provided. The configuration of the left-eye decoder 641 is different from the configuration of FIG. 56 in that a control unit 651 is provided instead of the control unit 565-2.

  Similarly to the control unit 565-2 in FIG. 56, the control unit 651 of the left-eye decoder 641 monitors the storage state of the left-eye caption object for one screen by the left-eye graphics plane 542-2, and the storage is completed. Is notified to the control unit 565-1. Similar to the control unit 565-2, the control unit 651 instructs the left-eye graphics plane 542-2 to transfer based on the PTS included in the PES packet header or the notification from the control unit 565-1.

  Moreover, the control part 651 controls each part according to the instruction | command from the control part 611 (FIG. 63).

  Further, the control unit 651 receives the offset change information for each subtitle screen stored in the register 611A, which is transmitted from the control unit 611, and supplies the information to the depth adjustment unit 643.

  The CLUT 642 stores a table in which index colors are associated with Y, Cr, and Cb values based on the PDS supplied from the control unit 565-1. In the disc 601, since the PDS is the same for the left-eye display set and the right-eye display set that are played back simultaneously, this table corresponds to both the left-eye caption object and the right-eye caption object. .

  The CLUT 642 converts the index color of the right-eye caption object supplied from the right-eye graphics plane 542-1 into image data composed of Y, Cr, and Cb values based on the stored table. Then, the CLUT 642 supplies the image data to the depth adjustment unit 643 as right-eye caption data.

  Further, the CLUT 642 converts the index color of the left-eye caption object supplied from the left-eye graphics plane 542-2 into image data including Y, Cr, and Cb values based on the stored table. Then, the CLUT 642 supplies the image data to the depth adjustment unit 643 as left-eye caption data.

  The depth adjustment unit 643 generates subtitle data of subtitles obtained as a result of shifting the subtitles in screen units corresponding to the left-eye subtitle data from the CLUT 642 in the offset direction indicated by the offset change information from the control unit 651 by the offset value. . Then, the depth adjustment unit 643 supplies the caption data to the 3D display data generation unit 36 as new left-eye caption data. Further, the depth adjustment unit 643 subtitle data of subtitles obtained as a result of shifting the subtitles in screen units corresponding to the subtitle data for the right eye from the CLUT 642 by the offset value in the offset direction indicated by the offset change information from the control unit 651. Generate. Then, the depth adjustment unit 643 supplies the caption data to the 3D display data generation unit 36 as new right-eye caption data.

  The depth adjustment unit 643 is not provided in the subsequent stage of the CLUT 642, but is divided into a function for the right eye and a function for the left eye, respectively, between the object buffer 563-1 and the graphics plane for the right eye 542-1. The object buffer 563-2 and the left-eye graphics plane 542-2 may be provided.

[Detailed configuration example of menu generator]
Although illustration is omitted, the menu generation unit 632 is configured in the same manner as the caption generation unit 631 of FIG. 64 except that the processing target is not caption data but menu data. However, in response to a command request corresponding to the offset change button 195 from the control unit 611, the control unit of the left-eye decoder of the menu generation unit 632 reads the set offset command included in the ICS from the composition buffer, and the control unit To 611.

[Processing of playback device]
For the playback process by the playback device 610, the 3D graphics generation process, the caption generation process, and the right-eye caption object generation process, the playback process in FIG. 58, the 3D graphics generation process in FIG. 59, and the caption generation process in FIG. Since this is the same as the right-eye caption object generation processing of FIG.

  FIG. 65 is a flowchart for explaining subtitle offset change processing by the subtitle generation unit 631 of the playback device 610. This subtitle offset change process is started when the control unit 611 transmits offset change information in response to a command corresponding to the operation of the offset change button 195 from the input unit 21.

  In step S401 of FIG. 65, the control unit 651 receives the offset change information for each subtitle screen held in the register 611A from the control unit 611 and supplies it to the depth adjustment unit 643.

  In step S <b> 402, the depth adjustment unit 643 generates new left-eye caption data based on the offset change information for each screen of the caption received from the control unit 611. In step S <b> 403, the depth adjustment unit 643 generates new right-eye caption data based on the offset change information for each caption screen received from the control unit 611. Then, the new right-eye caption data and left-eye caption data are output to the 3D display data generation unit 36 as 3D caption data, and the process ends.

  Note that the menu offset changing process by the menu generating unit 632 is performed in the same manner as the caption offset changing process of FIG. 65 except that the processing target is not the caption data but the menu data, and the description thereof will be omitted.

  The offset control process by the control unit 611 is the same as the offset control process of FIG.

[Subtitle 3D display example]
FIG. 66 is a diagram illustrating an example of subtitles displayed in 3D on the display unit 51 of the playback device 610.

  As shown in FIG. 66A, in the playback apparatus 610, an offset change button 195 as a 3D image having a predetermined length in a predetermined depth direction is displayed on the screen of the display unit 51 based on offset information in units of screens included in the ICS. Is displayed. In the example of FIG. 66A, subtitle # 1 and subtitle # 2 as 3D images having the same length in the same depth direction are further displayed on this screen based on the display set for the left eye and the display set for the right eye. Has been.

  In the screen of FIG. 66A, when the user instructs to change the offset by operating the offset change button 195 using the input unit 21, the screen of the display unit 51 is changed to the screen shown in FIG. 66B.

  Specifically, when the offset change button 195 is operated, the playback device 610 changes the offset of the subtitle screen unit described in the set offset command included in the left-eye ICS corresponding to the offset change button 195. Information is held in the register 611A. Then, subtitle data of subtitles obtained as a result of shifting the subtitles in screen units corresponding to the subtitle data for the left eye by the offset value in the offset direction indicated by the offset change information is generated as new left eye subtitle data. . As a result, the length in the depth direction of subtitle # 1 and subtitle # 2 increases in the depth direction by a length corresponding to the offset change information for each screen held in register 611A.

<Tenth embodiment>
[Configuration Example of Display Set in Tenth Embodiment of Disc]
FIG. 67 is a diagram showing a configuration example of the epoch of menu data in the tenth embodiment of the disk to which the present invention is applied.

  67, two AV streams of a left-eye AV stream and a right-eye AV stream are recorded as in the case of the disk 501 of FIG. As shown in FIG. 67, in the disc 671, as in the disc 501, the epoch structure of the menu data for the left eye and the epoch structure of the menu data for the right eye are the same.

  The relationship between the display set of menu data for the left eye and the display set of menu data for the right eye that are simultaneously reproduced on the disc 671 is the same as that of the disc 501 except for the following two points. The two different points are that the PDS is the same and that the button unit set offset command is described only in the left-eye ICS.

  Thus, in the disk 671, a button unit set offset command is provided in the left-eye ICS. Accordingly, a playback device 680 (described later) that plays back the disc 671 can change the length in the depth direction of the menu button in the screen corresponding to the ICS in units of menu buttons.

  Note that the epoch structure of subtitle data recorded on the disc 671 and the relationship between the left-eye display set and the right-eye display set that are reproduced simultaneously are the same as those of the disc 501, and thus the description thereof is omitted.

[Example of playback device configuration]
FIG. 68 is a block diagram showing a configuration example of the playback device 680 that plays back the disk 671 described above.

  Of the configurations shown in FIG. 68, configurations the same as the configurations in FIG. 63 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 680 in FIG. 68 is mainly in that a control unit 681 is provided instead of the control unit 611 and a playback unit 682 is provided instead of the playback unit 612. And different. The configuration of the playback unit 682 is different from the configuration of FIG. 63 in that a 3D graphics generation unit 691 is provided instead of the 3D graphics generation unit 621.

  The control unit 681 controls the playback unit 682 in accordance with a command from the input unit 21 as with the control unit 611 in FIG. Further, the control unit 681 requests the 3D graphics generation unit 691 for a set offset command corresponding to the menu button in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 681 supplies the menu generation unit 701 with the offset change information and button ID for each menu button described in the button unit set offset command transmitted from the menu generation unit 701 as a result.

  The 3D graphics generation unit 691 includes the caption generation unit 531 and the menu generation unit 701 shown in FIG. Similar to the menu generation unit 632 in FIG. 63, the menu generation unit 701 decodes the left-eye menu data and the right-eye menu data PES packets supplied from the PID filter 521. Similarly to the menu generation unit 632, the menu generation unit 701 supplies the left-eye menu data and right-eye menu data obtained as a result of the decoding to the 3D display data generation unit 36 as 3D menu data.

  Further, the menu generation unit 701 transmits a button unit set offset command included in the ICS to the control unit 681 in response to a command request corresponding to the offset change button 195 from the control unit 681. Then, the menu generation unit 701 updates the menu data for the left eye based on the offset change information and button ID for each menu button transmitted from the control unit 681 as a result.

[Detailed configuration example of menu generator]
FIG. 69 is a block diagram illustrating a detailed configuration example of the menu generation unit 701 in FIG.

  69, the menu generation unit 701 includes a right-eye decoder 711-1, a left-eye decoder 711-2, a right-eye graphics plane 712-1, a left-eye graphics plane 712-2, a CLUT 713, and a depth adjustment unit 714. Composed.

  The right-eye decoder 711-1 includes an encoded data buffer 721-1, a stream graphics generation unit 722-1, an object buffer 723-1, a composition buffer 724-1, and a control unit 725-1. The left-eye decoder 711-2 includes an encoded data buffer 721-2, a stream graphics generation unit 722-2, an object buffer 723-2, a composition buffer 724-2, and a control unit 725-2.

  69, the configuration other than the control unit 725-2 and the depth adjustment unit 714 is the same as the configuration of the menu generation unit 632 in FIG.

  The control unit 725-2 monitors the storage state of the left-eye caption object for one screen by the left-eye graphics plane 712-2, and notifies the control unit 725-1 of the completion of the storage. The control unit 725-2 instructs the left-eye graphics plane 712-2 to perform transfer based on the ICS from the composition buffer 724-2 or the notification from the control unit 725-1.

  Moreover, the control part 725-2 controls each part according to the instruction | command from the control part 681 (FIG. 68).

  Further, the control unit 725-2 reads a button unit set offset command included in the ICS from the composition buffer 724-2 in response to a command request corresponding to the offset change button 195 from the control unit 681, and the control unit 681 Send to. Further, the control unit 725-2 receives the offset change information and button ID for each menu button transmitted from the control unit 681 as a result. The control unit 725-2 supplies the received offset change information in units of menu buttons to the depth adjustment unit 714 as offset change information in units of ODSs of ODSs corresponding to the button IDs transmitted together therewith.

  The depth adjustment unit 714 obtains the menu data of the menu button obtained as a result of shifting each menu button in the screen corresponding to the left-eye menu data from the CLUT 713 based on the offset change information in ODS units corresponding to the menu button. Generate. Then, the depth adjustment unit 714 supplies the menu data to the 3D display data generation unit 36 as new left-eye menu data. The depth adjustment unit 714 also obtains a menu of menu buttons obtained as a result of shifting each menu button in the screen corresponding to the right-eye menu data from the CLUT 713 based on the offset change information in ODS units corresponding to the menu button. Generate data. Then, the depth adjustment unit 714 supplies the menu data to the 3D display data generation unit 36 as new right-eye caption data.

[Processing of playback device]
The playback process by the playback device 680, the 3D graphics generation process, the caption generation process, and the right-eye caption object generation process, respectively, the playback process of FIG. 58, the 3D graphics generation process of FIG. 59, and the caption generation process of FIG. Since this is the same as the right-eye caption object generation processing of FIG.

  FIG. 70 is a flowchart for explaining menu button offset change processing by the menu generation unit 701 of the playback device 680. This menu button offset changing process starts when the control unit 681 requests a command corresponding to the offset change button 195 from the menu generation unit 701 in response to a command corresponding to the operation of the offset change button 195 from the input unit 21. Is done.

  In step S421 of FIG. 70, the control unit 725-2 sends a button unit set offset command included in the ICS from the composition buffer 724-2 in response to a command request corresponding to the offset change button 195 from the control unit 681. read out.

  In step S422, the control unit 725-2 transmits the button unit set offset command read in step S421 to the control unit 681. The control unit 681 transmits the menu button unit offset change information and the button ID described in the button unit set offset command transmitted from the control unit 725-2 to the control unit 725-2.

  In step S423, the control unit 725-2 receives the offset change information and button ID for each menu button from the control unit 681. In addition, the control unit 725-2 recognizes the ODS corresponding to the button ID received from the control unit 681 based on the button ID included in the ICS held in the composition buffer 724-2. Then, the control unit 725-2 supplies the offset change information in units of menu buttons received from the control unit 681 to the depth adjustment unit 714 as offset change information in ODS units of the recognized ODS.

  In step S424, the depth adjustment unit 714 generates new left-eye menu data and right-eye menu data based on the offset change information in units of ODS supplied from the control unit 725-2. In step S425, the depth adjustment unit 714 outputs the new left-eye menu data and right-eye menu data generated in step S424 to the 3D display data generation unit 36, and ends the process.

  The offset control process by the control unit 681 is the same as the offset control process of FIG.

[Example of 3D display of menu button]
FIG. 71 is a diagram showing an example of menu buttons displayed in 3D on the display unit 51 of the playback device 680.

  In the example of FIG. 71A, on this screen, a menu button # 1, a menu button # 2, and a menu button # 2, which are 3D images having the same length in the same depth direction, based on the display set for the left eye and the display set for the right eye, An offset change button 195 is displayed.

  In the screen of FIG. 71A, when the user commands the offset change by operating the offset change button 195 using the input unit 21, the screen of the display unit 51 is changed to the screen shown in FIG. 71B.

  Specifically, when the offset change button 195 is operated, the playback device 680 obtains a menu obtained as a result of shifting the position of each menu button for the left eye currently displayed based on the offset change information for each menu button. Generate data. Then, the playback device 610 sets the menu data as new left-eye menu data. Further, the playback device 680 generates menu data obtained as a result of shifting the position of each menu button for the right eye currently being displayed based on the offset change information for each menu button. Then, the playback device 610 sets the menu data as new right-eye menu data.

  As a result, the length in the depth direction of the menu button # 1, the menu button # 2, and the offset change button 195 is increased in the depth direction by a length corresponding to the offset change information for each menu button in the button unit set offset command. To do.

  In the example of FIG. 71, since the offset change information of the menu button # 2 and the offset change button 195 is not included in the button unit set offset command, the distance in the depth direction of the menu button # 2 and the offset change button 195 is offset. There is no change before and after the change button 195 is operated.

  Furthermore, when an offset is set for each menu button as an additional condition, if there are a plurality of menu buttons on one screen, the menu button image for the right eye and the menu button image for the left eye are respectively for the right eye of different menu buttons. It must not overlap with the menu button image or the menu button image for the left eye.

<Eleventh embodiment>
[Configuration Example of Display Set in Eleventh Embodiment of Disc]
FIG. 72 is a diagram showing a configuration example of the epoch of menu data in the eleventh embodiment of the disk to which the present invention is applied.

  72, two AV streams of a left-eye AV stream and a right-eye AV stream are recorded in the same manner as the disk 501 of FIG. As shown in FIG. 72, the disc 751 has the same epoch structure for the menu data for the left eye and the epoch for the menu data for the right eye.

  The relationship between the left-eye display set and the right-eye display set that are played back simultaneously on the disc 751 is the same as that of the disc 501 except for the following two points. The two different points are that the PDS is the same and that the 2D display command is described only in the left-eye ICS. In the eleventh embodiment, the 2D display command describes information indicating a command for using the left-eye menu data as the menu data for both eyes.

  Thus, in the disc 751, since the 2D display command is provided in the left-eye ICS, the playback device 760 that plays back the disc 751 (to be described later) can perform 2D display of the menu button.

  The structure of the epoch of subtitle data and the relationship between the left-eye display set and the right-eye display set that are played back simultaneously are the same as those of the disc 501 except that the PCS is the same. Omitted.

[Example of playback device configuration]
FIG. 73 is a block diagram illustrating a configuration example of a playback device 760 that plays the above-described disc 751.

  Of the configurations shown in FIG. 73, configurations the same as the configurations in FIG. 55 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the playback device 760 in FIG. 73 is mainly that a control unit 771 is provided instead of the control unit 511 and a playback unit 772 is provided instead of the playback unit 512. Different from the configuration. The configuration of the playback unit 772 is different from the configuration of FIG. 55 in that a 3D graphics generation unit 781 is provided instead of the 3D graphics generation unit 523.

  Similar to the control unit 511, the control unit 771 controls the reproduction unit 772 according to a command from the input unit 21. Further, the control unit 771 requests a command corresponding to the menu button from the 3D graphics generation unit 781 in response to a command corresponding to the operation of the menu button from the input unit 21. Then, the control unit 771 supplies a command corresponding to the 2D display command transmitted as a result to the 3D graphics generation unit 781.

  The 3D graphics generation unit 781 includes a caption generation unit 791 and a menu generation unit 792.

  Similar to the caption generation unit 531 of FIG. 55, the caption generation unit 791 decodes the left-eye caption data and the right-eye caption data supplied from the PID filter 521. Similar to the caption generation unit 531, the caption generation unit 791 supplies the left-eye caption data and the right-eye caption data obtained as a result of decoding to the 3D display data generation unit 36 as 3D caption data. In addition, the caption generation unit 791 updates 3D caption data based on a command transmitted from the control unit 771.

  Similarly to the menu generation unit 532 of FIG. 55, the menu generation unit 792 decodes the left-eye menu data and the right-eye menu data PES packet supplied from the PID filter 521. Similarly to the menu generation unit 532, the menu generation unit 792 supplies the left-eye menu data and the right-eye menu data obtained as a result of decoding to the 3D display data generation unit 36 as 3D menu data. The menu generation unit 792 transmits a 2D display command included in the ICS of the menu data for the left eye to the control unit 771 in response to a command request corresponding to the 2D display button from the control unit 771. Then, the menu generation unit 792 updates the 3D menu data based on the command transmitted from the control unit 771 as a result.

[Detailed configuration example of subtitle generator]
FIG. 74 is a block diagram illustrating a detailed configuration example of the caption generation unit 791 of FIG.

  Of the configurations shown in FIG. 74, configurations the same as the configurations in FIG. 56 and FIG. 64 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the caption generation unit 791 in FIG. 74 is that a right-eye decoder 801-1 and a left-eye decoder 801-2 are provided instead of the right-eye decoder 541-1 and the left-eye decoder 541-2 in FIG. Different from the configuration. The configuration of FIG. 56 is that a right-eye graphics plane 802 is provided instead of the right-eye graphics plane 542-1 and a CLUT 642 is provided instead of the CLUTs 543-1 and 543-2. And different.

  The configuration of the right-eye decoder 801-1 is different from the configuration of FIG. 56 in that a control unit 811-1 is provided instead of the control unit 565-1. The left-eye decoder 801-2 is configured such that an object buffer 810 is provided instead of the object buffer 563-2, and a control unit 811-2 is provided instead of the control unit 565-2. This is different from the configuration of FIG.

  Similarly to the control unit 565-1 in FIG. 56, the control unit 811-1 of the right-eye decoder 801-1 monitors and stores the storage state of the right-eye caption object for one screen by the right-eye graphics plane 802. Is notified to the control unit 811-2. Similar to the control unit 565-2, the control unit 811-1 instructs the right-eye graphics plane 802 to transfer based on the PTS included in the PES packet header or the notification from the control unit 811-2.

  Control unit 811-1 controls each unit in accordance with a command from control unit 771 (FIG. 73).

  The object buffer 810 of the left-eye decoder 801-2 holds the left-eye caption object supplied from the stream graphics generation unit 562-2. The object buffer 810 deletes the left-eye caption object that is held in units of epochs. In addition, the object buffer 810 reads the retained left-eye caption object in accordance with the control from the control unit 811-2, and supplies the left-eye caption object to the left-eye graphics plane 542-2.

  Further, the object buffer 810 supplies the retained left-eye caption object to the right-eye graphics plane 802 and the left-eye graphics plane 542-2 in accordance with control from the control unit 811-2.

  Similarly to the control unit 565-2 in FIG. 56, the control unit 811-2 monitors the storage state of the left-eye caption object for one screen by the left-eye graphics plane 542-2, and controls the storage completion. 811-1 is notified. Similarly to the control unit 565-2, the control unit 811-2 instructs the left-eye graphics plane 542-2 to transfer based on the PTS included in the PES packet header or the notification from the control unit 565-1.

  Moreover, the control part 811-2 controls each part according to the instruction | command from the control part 771 (FIG. 73).

  Furthermore, the control unit 811-2 transfers the left-eye caption object to the right-eye graphics plane 802 and the left-eye graphics plane 542-2 in the object buffer 810 in response to a command transmitted from the control unit 771. Instruct.

  The right-eye graphics plane 802 holds the right-eye caption object for one screen supplied from the object buffer 563-1, similarly to the right-eye graphics plane 542-1. The right-eye graphics plane 802 holds the left-eye caption object for one screen supplied from the object buffer 810 as the right-eye caption object for one screen.

  Further, the right-eye graphics plane 802 deletes the retained right-eye caption object in units of epochs, like the right-eye graphics plane 542-1. In addition, the right-eye graphics plane 802 reads the stored right-eye caption object in accordance with the transfer instruction from the control unit 811-1 and supplies it to the CLUT 642, as with the right-eye graphics plane 542-1. .

[Detailed configuration example of menu generator]
Although illustration is omitted, the menu generation unit 792 is configured in the same manner as the caption generation unit 791 in FIG. 74 except that the processing target is not caption data but menu data. However, the control unit of the left-eye decoder of the menu generation unit 792 reads the 2D display command included in the ICS from the composition buffer in response to a command request corresponding to the 2D display button from the control unit 771, and controls the control unit 771. Send to.

[Processing of playback device]
The playback process by the playback device 760, the 3D graphics generation process, the caption generation process, and the right-eye caption object generation process, respectively, the playback process of FIG. 58, the 3D graphics generation process of FIG. 59, and the caption generation process of FIG. Since this is the same as the right-eye caption object generation processing of FIG.

  FIG. 75 is a flowchart for explaining caption display change processing by the caption generation unit 791 of the playback device 760. This subtitle offset change processing is started when the control unit 771 requests a 2D display command from the 3D graphics generation unit 781 in response to an offset change command from the input unit 21.

  In step S441 in FIG. 75, control units 811-1 and 811-2 receive a command from control unit 771.

  In step S442, the control unit 811-1 controls the object buffer 563-1 according to the instruction received in step S441, and stops reading the right-eye caption object from the object buffer 563-1.

  In step S443, the control unit 811-2 controls the object buffer 810 according to the instruction received in step S441, and transfers the left-eye caption object in the object buffer 810 to the right-eye graphics plane 802. The right-eye graphics plane 802 holds the left-eye caption object as the right-eye caption object. Then, the process proceeds to step S444.

  Steps S444 to S447 are the same as the processes of steps S363 to S366 in FIG.

  By performing the subtitle offset changing process as described above, the right-eye subtitle data and the left-eye subtitle data become the same subtitle data corresponding to the left-eye AV stream. Thereby, the user can see the 2D display of subtitles. Therefore, the user can change the 3D display of subtitles to 2D display by instructing 2D display using the input unit 21 when eyes are tired.

  The menu display change process by the menu generation unit 792 is performed in the same manner as the subtitle display change process in FIG. 75 except that the processing target is not the subtitle data but the menu data, and thus description thereof is omitted.

  In the eleventh embodiment, the 2D display command describes information indicating a command to use the left-eye caption data as both-eye caption data. However, the left-eye and right-eye caption data are used for both eyes. Information indicating a command for generating common caption data may be described.

[Another detailed configuration example of subtitle generator]
FIG. 76 is a diagram illustrating a detailed configuration example of the caption generation unit 791 in such a case.

  Of the configurations shown in FIG. 76, configurations the same as the configurations in FIG. 56 and FIG. 74 are denoted with the same reference numerals. The overlapping description will be omitted as appropriate.

  The configuration of the caption generation unit 791 in FIG. 76 is that a right-eye decoder 541-1 and a left-eye decoder 851 are provided instead of the right-eye decoder 801-1 and the left-eye decoder 801-2. And different. 76 is different from the configuration of FIG. 76 in that a right-eye graphics plane 542-1 is provided instead of the right-eye graphics plane 802 and a 2D conversion unit 852 is newly provided.

  The configuration of the left-eye decoder 851 is that the object buffer 563-2 is provided instead of the object buffer 810, and the control unit 861 is provided instead of the control unit 811-2. And different.

  Similar to the control unit 811-2 of FIG. 74, the control unit 861 of the left-eye decoder 851 monitors the storage state of the left-eye caption object for one screen by the left-eye graphics plane 542-2, and the storage is completed. Is notified to the control unit 565-1. Similar to the control unit 811-2, the control unit 861 instructs the left-eye graphics plane 542-2 to transfer based on the PTS included in the PES packet header or the notification from the control unit 565-1.

  Further, the control unit 861 controls each unit in accordance with a command from the control unit 771 (FIG. 73).

  Further, the control unit 861 receives a command transmitted from the control unit 771 and supplies the command to the 2D conversion unit 852.

  The 2D conversion unit 852 generates common caption data for both eyes from the caption data for the left eye and the caption data for the right eye output from the CLUT 642 in response to a command supplied from the control unit 861. The 2D conversion unit 852 supplies the generated common subtitle data for both eyes to the 3D display data generation unit 36 as subtitle data for the left eye and subtitle data for the right eye.

[Processing of 2D converter]
FIG. 77 is a diagram illustrating an example of a method for generating common caption data for both eyes by the 2D conversion unit 852 in FIG. 76. Transferring either left-eye or right-eye caption data as synthesized caption data is the simplest 2D conversion method.

  First, as shown in FIG. 77A, the position of the caption 871 for the left eye on the screen is (XL, YL), and as shown in FIG. 77B, the position of the caption 872 for the right eye on the screen is (XR, YR). And However, YL and YR are the same.

  In this case, assuming that the position on the screen of the subtitles common to both eyes is (X, Y), using the constants α and β preset in the 2D conversion unit 852, X is expressed by the equation X = XR−α. , X = XL−β. Therefore, the 2D conversion unit 852 calculates X by calculating the formula X = {(XR + XL) −α−β} / 2, and calculates Y using the formula Y = YL = YR.

  Then, the 2D conversion unit 852 generates the caption data obtained as a result of changing the position of each caption corresponding to the caption data for the right eye to the position (X, Y) as the caption data for the right eye. Further, the 2D conversion unit 852 generates caption data obtained as a result of changing the position of each caption corresponding to the caption data for the left eye to the position (X, Y) as caption data for the left eye.

  By generating the same right-eye caption data and left-eye caption data as described above, the user can view the 2D display of the caption.

  In the above description, the set offset command and the 2D display command are described in the menu data for the left eye, but the set offset command and the 2D display command may be described in the menu data for the right eye. Also, a set offset command or a 2D display command may be described in both left-eye and right-eye menu data.

  The ICS may be provided with a 3D display command for switching from 2D display to 3D display. In this case, the process corresponding to the 2D display command is returned to the original process by the 3D display command.

  Furthermore, in the above description, the case where there is a one-to-one relationship between ODS and menu buttons and subtitles has been described. However, when one menu button or subtitle corresponds to a plurality of ODSs, or a plurality of menus correspond to one ODS. When buttons and subtitles are supported, the “ODS unit offset information” described above is “menu button unit or subtitle unit offset information”. The same applies to the “ODS unit offset change information”, and when the button unit set offset command is executed, the offset information is changed in menu button units.

<Twelfth embodiment>
By the way, the series of processes described above can be executed by hardware, but can also be executed by software.

  In this case, for example, a personal computer shown in FIG. 78 may be employed as at least a part of the above-described playback device.

  78, a CPU (Central Processing Unit) 901 executes various processes according to a program recorded in a ROM (Read Only Memory) 902 or a program loaded from a storage unit 908 to a RAM (Random Access Memory) 903. To do. The RAM 903 also appropriately stores data necessary for the CPU 901 to execute various processes.

  The CPU 901, ROM 902, and RAM 903 are connected to each other via a bus 904. An input / output interface 905 is also connected to the bus 904.

  The input / output interface 905 includes an input unit 906 made up of a keyboard, mouse, etc., an output unit 907 made up of a display, a storage unit 908 made up of a hard disk, etc., and a communication unit 909 made up of a modem, a terminal adapter, etc. It is connected. The communication unit 909 controls communication performed with other devices (not shown) via a network including the Internet.

  A drive 910 is connected to the input / output interface 905 as necessary, and a removable medium 911 made of a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is appropriately mounted, and a computer program read from them is loaded. If necessary, it is installed in the storage unit 908.

  When a series of processing is executed by software, a program constituting the software executes various functions by installing a computer incorporated in dedicated hardware or various programs. For example, a general-purpose personal computer is installed from a network or a recording medium.

  As shown in FIG. 78, the recording medium including such a program is distributed to provide a program to the user separately from the apparatus main body, and a magnetic disk (including a floppy disk) on which the program is recorded. , Removable media consisting of optical disks (including CD-ROM (compact disk-read only memory), DVD (digital versatile disk), blu-ray disk), magneto-optical disk (including MD (mini-disk)), or semiconductor memory (Package medium) 911 is not only configured, but also configured by a ROM 902 on which a program is recorded and a hard disk included in the storage unit 908 provided to the user in a state of being incorporated in the apparatus main body in advance.

In the above description, the 3D video generation unit 34 generates the video data for the right eye and the left eye using the PES packet of the video data supplied from the PID filter 33, but the right eye and the left eye are generated on the disc. If the video data is recorded, the same processing as that performed by the 3D video generation unit 522 may be performed. In this case, the 3D video generation unit 34 decodes the PES packet of the left-eye video data supplied from the PID filter 33 to generate left-eye video data, and the right-eye video data supplied from the PID filter 33 The right-eye video data is generated by decoding the PES packet.

<Detailed explanation of PCS and ICS>
FIG. 79 is a diagram illustrating an example of the syntax of PCS, and FIG. 80 is a diagram illustrating an example of the syntax of ICS.

  As shown in FIG. 79, the sub-image ID of each caption, offset information including an offset direction, and an offset value are described in the PCS.

  As shown in FIG. 80A, interactive_composition is arranged in ICS, and offset information, button information, and the like are described in interactive_compositio.

<Detailed description of 3D video generation unit>
FIG. 81 is a diagram for explaining display data for the left eye and right eye generated by the 3D display data generation unit 36.

  As shown in FIG. 81A, the 3D display data generation unit 36 generates left-eye display data by synthesizing three pieces of data, that is, left-eye video data, left-eye caption data, and left-eye menu data. Also, as shown in FIG. 81B, the 3D display data generation unit 36 generates right-eye display data by synthesizing three pieces of data: video data for the right eye, caption data for the right eye, and menu data for the right eye. To do. Note that the order of superimposing video data, caption data, and menu data for each eye is, in order from the bottom, video data, caption data, and menu data.

  FIG. 82 is a block diagram illustrating a detailed configuration example of the 3D display data generation unit 36.

  As shown in FIG. 82, the 3D display data generation unit 36 includes a left-eye display data generation unit 1000 and a right-eye display data generation unit 1010.

  The left-eye display data generation unit 1000 includes a left-eye video plane 1001, a transmission unit 1002, a transmission unit 1003, a synthesis unit 1004, a transmission unit 1005, a transmission unit 1006, and a synthesis unit 1007.

  The left-eye video plane 1001 holds the left-eye video data supplied from the 3D video generation unit 34 (522).

The transmission unit 1002 reads the left-eye video data held in the left-eye video plane 1001. The transmission unit 1002 converts the read video data for the left eye so that the main image for the left eye is transmitted with a preset transmittance (1-α _1L ). The transmission unit 1002 supplies the converted video data for the left eye to the synthesis unit 1004.

The transmission unit 1003 converts the left-eye caption data supplied from the caption generation unit 41 (111, 181, 231, 431, 531, 631, 791) with the transmittance α _1L in which the left-eye caption is set in advance. Convert to transparent. The transmission unit 1003 supplies the converted video data for the left eye to the synthesis unit 1004.

  The combining unit 1004 combines the left-eye video data supplied from the transmission unit 1002 and the left-eye caption data supplied from the transmission unit 1003, and supplies the resulting data to the transmission unit 1005.

The transmission unit 1005 converts the data so that the image corresponding to the data supplied from the synthesis unit 1004 is transmitted with the transmittance (1-α _2L ), and supplies the converted data to the synthesis unit 1007.

In the transmission unit 1006, menu data for the left eye supplied from the menu generation unit 42 (112, 182, 232, 331, 432, 532, 632, 701, 792) is preset with menu buttons for the left eye. It converts so that it may permeate _| transmit with the transmittance _| permeability (alpha) _2L . The transmission unit 1006 supplies the converted menu data for the left eye to the synthesis unit 1007.

  The combining unit 1007 combines the data supplied from the transmission unit 1005 and the menu data supplied from the transmission unit 1006, and outputs the resulting data as display data for the left eye.

  The right-eye display data generation unit 1010 includes a right-eye video plane 1011, a transmission unit 1012, a transmission unit 1013, a combination unit 1014, a transmission unit 1015, a transmission unit 1016, and a combination unit 1017. The processing of each unit of the right-eye display data generation unit 1010 is the same as the processing of each unit of the left-eye display data generation unit 1000 except that the processing target is data for the right eye, and thus description thereof is omitted.

  In the above description, subtitle data and menu data for each eye are generated in the 3D graphics generation unit 35 (101, 171, 221, 321, 421, 523, 621, 691, 781). However, the 3D display data generation unit 36 may generate subtitle data and menu data for each eye. In this case, for example, the playback device 20 is configured as shown in FIG.

<Description of Other Reproducing Apparatus for Reproducing the First Embodiment of the Disc>
[Configuration example of playback device]
FIG. 83 is a block diagram showing another configuration example of the playback device 20 of FIG.

  The configuration in FIG. 83 is different from the configuration in FIG. 13 in that a playback unit 1030 is provided instead of the playback unit 23.

  The playback unit 1030 of the playback device 20 in FIG. 83 is provided with a 3D graphics generation unit 1031 and a 3D display data generation unit 1032 in place of the 3D graphics generation unit 35 and the 3D display data generation unit 36. 13 different from the playback unit 23. 83, the same components as those in FIG. 13 are denoted by the same reference numerals, and repeated description will be omitted as appropriate.

  The 3D graphics generation unit 1031 includes a caption generation unit 1041 and a menu generation unit 1042. The caption generation unit 1041 generates caption data and offset information for each screen using the PES packet of the caption data supplied from the PID filter 33, and supplies the generated information to the 3D display data generation unit 1032. Details of the caption generation unit 1041 will be described with reference to FIG.

  The menu generation unit 1042 generates menu data and offset information for each screen using the PES packet of the menu data supplied from the PID filter 33, and supplies the menu data to the 3D display data generation unit 1032.

  The 3D display data generation unit 1032 generates left-eye caption data and right-eye caption data as 3D caption data based on the caption data supplied from the caption generation unit 1041 and offset information in units of screens. Further, the 3D display data generation unit 1032 generates the left-eye caption data and the right-eye caption data as 3D caption data based on the caption data supplied from the menu generation unit 1042 and the offset information in units of screens.

  Similarly to the 3D display data generation unit 36 in FIG. 13, the 3D display data generation unit 1032 converts the 3D video data, the 3D subtitle data, and the 3D menu data supplied from the 3D video generation unit 34 to the left and right sides. Combining for each eye data. The 3D display data generation unit 1032 supplies the display data for the left eye and the display data for the right eye obtained as a result to the display unit 51 as 3D display data. Details of the 3D display data generation unit 1032 will be described with reference to FIG.

[Detailed configuration example of subtitle generator]
84 is a block diagram illustrating a detailed configuration example of the caption generation unit 1041 in FIG. 83.

  In the configuration of FIG. 84, the 3D generation unit 64, the right-eye graphics plane 65, and the left-eye graphics plane 66 are not provided, and the CLUT 105 and the control unit 1052 are provided instead of the CLUT 67 and the control unit 69. 14 is different from the configuration of FIG. Of the configurations shown in FIG. 84, configurations the same as the configurations in FIG. 14 are denoted with the same reference numerals, and repeated description will be omitted as appropriate.

  84, the CLUT 1051 of the caption generation unit 1041 stores a table in which index colors are associated with Y, Cr, and Cb values based on the PDS supplied from the control unit 1052, similarly to the CLUT 67 of FIG. . The CLUT 1051 reads the caption object from the object buffer 63 and converts the index color of the caption object into image data composed of Y, Cr, and Cb values based on the stored table. Then, the CLUT 1051 supplies the image data of the caption object to the 3D display data generation unit 1032 (FIG. 83) as caption data.

  The control unit 1052 reads offset information in increments of screens included in the PCS from the composition buffer 68 and supplies it to the 3D display data generation unit 1032. Further, the control unit 1052 reads the PDS from the composition buffer 68 and supplies it to the CLUT 1051. Furthermore, the control unit 1052 controls each unit in accordance with a command from the control unit 22 (FIG. 83).

[Detailed configuration example of menu generator]
Since the menu generation unit 1042 is configured in the same manner as the caption generation unit 1041 of FIG. 84 except that the processing target is not caption data but menu data, the illustration is omitted.

[Detailed Configuration Example of 3D Display Data Generation Unit]
FIG. 85 is a block diagram illustrating a detailed configuration example of the 3D display data generation unit 1032 in FIG. 83.

  85 includes a subtitle plane 1061, a menu plane 1062, a left-eye display data generation unit 1063, and a right-eye display data generation unit 1064.

  The subtitle plane 1061 holds subtitle data supplied from the subtitle generation unit 1041 (FIG. 83) of the 3D graphics generation unit 1031.

  The menu plane 1062 holds menu data supplied from the menu generation unit 1042 (FIG. 83) of the 3D graphics generation unit 1031.

  The configuration of the left-eye display data generation unit 1063 is different from the configuration of the left-eye display data generation unit 1000 (FIG. 82) in that an offset addition unit 1071 and an offset addition unit 1072 are newly provided. 85, the same reference numerals are given to the same configurations as the configurations in FIG. 82, and overlapping descriptions will be omitted as appropriate.

  The offset adding unit 1071 reads the caption data from the caption plane 1061. The offset adding unit 1071 generates subtitle data for the left eye from the read subtitle data based on the offset information for each screen supplied from the subtitle generation unit 1041. Specifically, the offset adding unit 1071 generates subtitle data obtained as a result of shifting the subtitle of the screen unit corresponding to the read subtitle data by the offset value in the offset direction of the offset information as the subtitle data for the left eye To do. The offset addition unit 1071 supplies the left-eye caption data to the transmission unit 1003.

  The offset adding unit 1072 reads menu data from the menu plane 1062. The offset adding unit 1072 generates menu data for the left eye from the read menu data based on the offset information for each screen supplied from the menu generating unit 1042. Specifically, the offset adding unit 1072 uses, as menu data for the left eye, menu data obtained as a result of shifting the menu button for each screen corresponding to the read menu data by the offset value in the offset direction of the offset information. Generate. The offset adding unit 1072 supplies the menu data for the left eye to the transmission unit 1006.

  The configuration of the right-eye display data generation unit 1064 is different from the configuration of the right-eye display data generation unit 1010 (FIG. 82) in that an offset addition unit 1081 and an offset addition unit 1082 are newly provided. The processing of each unit of the right-eye display data generation unit 1064 is the same as the processing of each unit of the left-eye display data generation unit 1063 except that the left-eye data is replaced with the right-eye data, and thus the description thereof is omitted. To do.

  The additional condition described in FIG. 52 that the subtitles or menu buttons for each eye must not protrude from the screen is provided not only in the second embodiment but also in other embodiments.

  In the present specification, the step of describing the program recorded on the recording medium is not limited to the processing performed in chronological order according to the order, but is not necessarily performed in chronological order, either in parallel or individually. The process to be executed is also included.

  The present invention can also be applied to a playback apparatus that identifies a display system including a display that does not support 3D display, and then switches to an output image signal suitable for the display system and outputs it.

  Furthermore, the present invention can be applied not only to a playback device that plays back a disc, but also to a playback device that plays back a broadcast signal of a digital broadcast or a signal distributed by IP (Internet Protocol).

  Further, the disk described above may be a disk other than the BD-ROM.

  The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  31 drive, 501 disc, 510 playback device, 542-1 right-eye graphics plane, 542-2 left-eye graphics plane, 565-1, 565-2 control unit, 601 disc, 610 playback device, 651 control unit, 671 Disc, 680 playback device, 712-1 graphics plane for right eye, 712-2 graphics plane for left eye, 725-1, 725-2 control unit, 751 disc, 760 playback device, 802 graphics plane for right eye, 811- 1,811-2,861 control unit

Claims (3)

Image data in units of screens of the left-eye L image and right-eye R image of the sub-image used for 3D (3 Dimensional) display of the sub-image consisting of subtitles or menu buttons
Window position information and size information indicating a display range of the subtitles in the respective screens of the L image and the R image, and a window ID that is an ID unique to the window,
When reproducing the data of the data structure in which the vertical size and the horizontal size of the window of the same window ID are the same in the size information of the L image and the size information of the R image,
Said L image and the image data in the unit of a picture of the R image, the position information and the size information, and the reading unit to read out the window ID is included in the data,
When the window IDs of the L image and the R image are the same, based on the position information and the size information of the L image read by the reading unit, and image data of the screen unit of the L image, The L image to be displayed in a window having the same size in the vertical direction and the horizontal direction as the window in the R image at the position in the screen based on the position information of the L image is output on a screen basis, and the reading unit Based on the read position information and size information of the R image and image data of the R image on a screen basis, the position in the screen based on the position information of the R image and the window in the L image An output unit for outputting the R image to be displayed in a window having the same size in the horizontal direction and the horizontal direction in screen units ;
A playback device comprising: Image data in units of screens of the left-eye L image and right-eye R image of the sub-image used for 3D (3 Dimensional) display of the sub-image consisting of subtitles or menu buttons
Window position information and size information indicating a display range of the subtitles in the respective screens of the L image and the R image, and a window ID that is an ID unique to the window,
A reading step of to read out the image data, the position information and the size information, and the window ID in the unit of a picture of the L image and the R image included in the data,
When the window IDs of the L image and the R image are the same, based on the position information and the size information of the L image read by the process of the reading step, and image data of the L image on a screen unit basis The L image to be displayed in a window having the same size in the vertical and horizontal directions as the window in the R image at the position in the screen based on the position information of the L image is output on a screen basis and read out The L image of the position in the screen based on the position information of the R image based on the position information and the size information of the R image and the image data of the screen image of the R image read out by the processing of the step output step of outputting the R image to be displayed in the window and the longitudinal and the transverse size is the same window on the screen unit in Playback method comprising the door. The recording device
The image data of the screen unit of the left-eye L image and the right-eye R image of the sub-image used for 3D (3 Dimensional) display of the sub-image composed of subtitles or menu buttons is recorded on a recording medium ,
The position information and size information of the window indicating the display range of the subtitles in the screen of each of the L image and the R image, and the window ID that is an ID unique to the window, are displayed on the L image and the R image. longitudinal and transverse sizes of the represented size information of the same of the window ID of the window is set to be equal, steps including recording method for recording on the recording medium.

Images