JP2008103050A - Reproducing device and reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproducing device and a reproducing method in which switching operation of subtitle information of Advanced Content of HD DVD standard is performed. <P>SOLUTION: A reproducing device 10 has: a reading part 11 for reading image information, subtitle information, and management information from a recording medium; an operating part for outputting an operation signal; and a processing part in which a subtitle track number of the subtitle information is specified by Selected Substitute Track Number in Presentation Parameters in System Parameters in the management information read by the reading part, and a subtitle language code of the subtitle information is specified by Selected Substitute Language code in Presentation Parameters, and a subtitle language extension code is specified by Selected Substitute Language code Extension in Presentation Parameters, thereby one subtitle information included in the subtitle information is set and reproduced by specifying an on/off state of the subtitle information by Visibility of Substitute in Layout Parameters in System parameters. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a reproducing apparatus and a reproducing method for a recording medium for reproducing subtitle information.

  Recently, DVD (Digital Versatile Disc) playback technology for storing and playing back video signals on an optical disk has become widespread, and further, for example, HD DVD (High DVD) Definition Digital Versatile Disc) technology is known. For example, subtitle information such as Japanese or English is used as a reproduction process of a video signal stored in such an optical disc. With this subtitle information, content such as a movie can be viewed in a plurality of languages. . This subtitle information has different forms of the conventional DVD standard and the advanced content of the HD DVD standard in DVD and HD DVD, and it is desired that the playback device supports each.

In Patent Document 1, the user can specify a desired language by using a caption language switching key and an arrow key for these conventional DVD standards and HD DVD standard Advanced Content.
JP 2004-112207 A

  However, the conventional technique of Patent Document 1 has a problem that, for example, it is not possible to know what data is acquired and processed for Advanced Content of the HD DVD standard.

  An object of the present invention is to provide a playback apparatus and playback method for performing a switching operation of subtitle information of HD DVD Advanced Content.

  As one of means for solving the problem, a reading unit (11) that reads video information, caption information, and management information from the recording medium (D), an operation unit (22, 24) that outputs an operation signal, According to the operation signal of the operation unit, the subtitle track of the subtitle information is determined by [Selected Subtitle Track Number] in [Presentation Parameters] in [Presentation Parameters] in [System Parameters] in the management information read by the reading unit. The number is specified, the subtitle language code of the subtitle information is specified by [Selected Subtitle Language Code] in [Presentation Parameters], and the subtitle is specified by [Selected Subtitle Language Code Extension] in [Presentation Parameters]. A language extension code is specified, and the on / off state of the subtitle information is specified by [Visibility of Subtitle] in [Layout Parameter] in [System Parameters]. And a processing unit (12A) for setting and reproducing the subtitle information.

  When switching subtitle information of Advanced Content of the HD DVD standard, it is possible to easily perform the switching process by disclosing in detail what data is acquired from the disk and processed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Reproducing apparatus for recording medium according to one embodiment of the present invention>
A recording medium playback apparatus according to an embodiment of the present invention is, for example, a DVD player that performs playback processing equivalently to the conventional content of the DVD standard, the HD DVD standard, and the like. FIG. 1 is a block diagram showing an example of the configuration of a playback apparatus according to an embodiment of the present invention. FIG. 2 is also an explanatory diagram for explaining an example of Advanced Content data processing.

(Constitution)
As shown in FIG. 1, a recording medium playback apparatus 10 according to an embodiment of the present invention is connected to a driver that plays back an optical disc 13A such as a conventional DVD standard or HD DVD standard Advanced Content, or the Internet. A communication unit such as a modem that can be connected to a network 13B such as Ethernet (registered trademark), and a data reading unit 11 that collectively refers to an I / F unit of a memory 13C such as a flash memory.

  Furthermore, the playback apparatus 10 has an MPU unit 12 that controls the overall operation and performs other operations. The MPU unit 12 acquires read information from the data reading unit 11 and performs each process.

  That is, for example, the MPU unit 12 combines a subtitle processing unit 12A that performs switching processing and reproduction processing of subtitle information, a priority reproduction setting processing unit 12B that performs preferential reproduction of specific information, and management information on a screen. An OSD display processing unit 12C for performing detection, a domain detection processing unit 12D for detecting a domain on the network, a reproduction stream change processing unit 12E, and the like.

  Further, the playback apparatus 10 is separated into various information detection processing units 14 that are controlled by the MPU unit 12 to separate read signals from the data reading unit 11 and the like, and an audio decoder 15 that decodes the separated audio information. A video decoder 16 that decodes the video information, a sub-video decoder 17 that decodes the separated sub-video information, and a work memory 18 that is a work area for processing various information.

  Further, the playback apparatus 10 includes a video processing unit 19 that performs a synthesis process of video signals from the video decoder 16 and the sub video decoder 17, and an audio D that performs D / A conversion of the audio signal from the audio decoder 15. A / A converter 20, a video D / A converter 21 for decoding video signals, an external operation detection unit 22 for transmitting / receiving operation signals to / from an external remote controller R, and a screen creation unit 23 for combining image signals. ing.

(basic action)
First, an overview of Advanced Content processing will be described using the conceptual diagram of FIG. FIG. 2 is an explanatory diagram for explaining an example of Advanced Content data processing of the playback apparatus according to the embodiment of the present invention.

  The playback apparatus 10 having such a configuration reads the Advanced Content 31 by the data reading unit 11 from, for example, the HD DVD 13A or the like. The Advanced Content 31 includes an Advanced Application 31A that is a program of application software and a video audio signal 31B.

  The Advanced Application 31A is supplied to the work memory 18 and the MPU 12 via the information detection processing unit 14. Similarly, the video audio signal 31 </ b> B is supplied to the work memory 18, the MPU 12, and the decoders 15, 16, and 17 via the information detection processing unit 14.

  The MPU 12 activates the Advanced Application 31A stored in the work memory 18, controls the Data Access Manager 33, the Presentation Engine 35, and the AV Renderer 36, and manages the operation signal from the external operation detection unit 22, and the data manager 34 The functions of the Presentation Engine 35 that performs processing for obtaining a reproduction signal such as decompression and decoding processing, and the AV Renderer 36 that performs video signal control such as synthesis processing of each video signal and subtitle signal are realized.

  The video audio signal 31B is separated into audio information, video information, and sub-video information by the processing unit 14 by the functions realized by the Advanced Application 31A in the MPU 12 and the functions of the decoders 15, 16, 17 and the video processing unit 19. The decoders 15, 16, and 17 perform the decoding process. At the same time, subtitle information and the like are processed by the subtitle processing unit 12A by the MPU 12, and at the same time, the OSD processing is performed by the OSD processing unit 12C.

  Subtitle information and the like obtained as a result are synthesized by the screen creation unit 23 and the like, and supplied to the video processing unit 19. Then, the video information combined with the caption information and the like is converted by the video D / A converter 21 and output. Further, the decoded audio signal is D / A converted by the D / A converter 20 and output. As a result, the video signal stored in the HD DVD 13A or the like is reproduced and reproduced by an external video display device or the like.

<Subtitle switching process>
Next, an example of the HD DVD standard Advanced Content subtitle switching process according to an embodiment of the present invention will be described in detail with reference to the remote controller of FIG. 3 and the flowchart of FIG. FIG. 3 shows an embodiment of the remote controller. In the remote controller R used here, the SUBTITLE button 41 that is a caption button and the arrow keys 42a, 42b, 42c, and 42d are used at least for caption switching processing. These keys can be used in common for both Advanced Content of the conventional DVD standard and HD DVD standard, and the operation feeling is also similar.

  FIG. 4 is a flowchart showing an example of the caption display operation of the playback apparatus according to the embodiment of the present invention. Note that each step of the flowchart of FIG. 4 below can be replaced with a circuit block, and therefore, all the steps of each flowchart can be redefined as a block.

  The playback apparatus 10 performs subtitle switching processing according to the procedure shown in the flowchart of FIG. Here, FIGS. 5 to 8 show subtitle switching dialogs 51 to 54, respectively. Here, the caption switching dialog 51 in FIG. 5 is an advanced content caption switching dialog of the HD DVD standard, the caption switching dialog 52 in FIG. 6 is a conventional DVD standard caption switching dialog, and the caption switching in FIG. The dialog 53 is a subtitle switching dialog in which a plurality of subtitle information of Advanced Content is displayed at the same time. The subtitle switching dialog 54 in FIG. 8 displays a plurality of subtitle information in Advanced Content at the same time, and simultaneously displays all the subtitle information. It is a subtitle switching dialog turned off.

  That is, as shown in FIG. 5 and the like, the subtitle dialog 51 has two selectable areas, the area 51A indicates “1 English” and the like, and the area 51B indicates “Off” and the like. Yes. These can be moved by, for example, left and right keys 42b and 42c (or up and down keys 42a and 42d).

  First, when the subtitle switching mode is selected under the control of the MPU unit 12 according to the operation of the user's remote control R or the like, a subtitle dialog 51 as shown in FIG. 5 or the like is displayed on the screen.

  Depending on the operation of the left and right keys 42b and 42c (or the up and down keys 42a and 42d) of the user's remote controller R or the like, the subtitle track switching or the on / off operation of each subtitle is selected (step S11). That is, when the SUBTITLE button 41 or the up / down keys 42a and 42b, which are subtitle buttons, is pressed in the state in which the subtitle switching dialog 51 shown in FIG. 5 is displayed (step S12), the position highlighted on the GUI is If it is detected and the highlight is in the area 51A, it is recognized as “subtitle track switching state”, and if the highlight is in the area 51B, it is recognized as “subtitle on / off switching state” (step S13).

  Thereby, subtitle track switching is executed (step S14).

  That is, the Navigation Manager 34 inputs VK_SUBTITLE to the Advanced Application acquired from the disk 13A or the like, and performs processing described in the Advanced Application such as subtitle track switching.

  Here, when a caption track is switched by Advanced Application, Advanced Application refers to the following data in the system parameters shown in FIG.

  That is, the subtitle track number is specified by referring to the parameter P1 of [System Parameters] >> [Presentation Parameters] >> [Selected Subtitle Track Number].

  Similarly, the subtitle language code is specified by referring to the parameter P2 of [System Parameters] >> [Presentation Parameters] >> [Selected Subtitle Language Code].

  Similarly, the subtitle language extension code is specified by referring to the parameter P3 of [System Parameters] >> [Presentation Parameters] >> [Selected Subtitle Language Code Extension].

  Thereby, for example, the subtitle dialog 51A is switched from “1 English” to “3 Japanese” or the like (step S16).

  On the other hand, when the SUBTITLE button 41 or the arrow keys 42a, 42b (42c, 42d) is pressed in the state in which the right area 51B is focused (subtitle on / off switching state) instead of the subtitle track switching state in step S13. Is determined to switch subtitle on / off (step S17).

  As a result, the subtitle track is switched on and off (step S18).

  Here, when the subtitle track is switched on / off by the Advanced Application, the Advanced Application refers to the following data in the system parameters shown in FIG.

  That is, the subtitle on / off state is identified by the parameter P4 of [System Parameters] >> [Layout Parameter] >> [Visibility of Subtitle] (step S19). Then, on / off can be switched in the caption dialog according to this information (step S20).

  In this way, subtitle switching processing is performed on the Advanced Content of the HD DVD standard in accordance with the user's operation on the remote controller R or the like. After the caption switching process is completed, the selected caption information is acquired, and the caption information is synthesized with the main video and reproduced and displayed on the screen.

  Here, the caption track represents a unit of caption data in Advanced Content. For example, when two types of English and one type of Japanese are recorded on the disc, and these are all switchable, the number of subtitle tracks is three.

  Advanced Application is an application program stored on the HD DVD, and is an execution unit having Markup content and Script content. The Markup content supplies a graphic plane and a sub-picture plane over the main video and the sub-video. Script content associates a user operation with a playback process via a remote controller and a device.

  Also, even if VK_SUBTITLE is input to Advanced Application, subtitle track switching is not always executed. In Advanced Application, it is allowed to freely describe the processing contents corresponding to each key event.

(Other embodiments)
As another embodiment, it is also preferable to display a plurality of pieces of subtitle information at the same time, as shown in the subtitle dialog 53 of FIG. 7 and the subtitle dialog 54 of FIG. It is also preferable to select not to perform subtitle processing by turning off all subtitle information as in the subtitle dialog 54B of FIG.

  As described above in detail with reference to the drawings, according to the playback apparatus according to an embodiment of the present invention, a highly visible subtitle switching operation generally realized in a conventional DVD standard disk playback apparatus. Can also be realized in playback of Advanced Content of the HD DVD standard.

  With the various embodiments described above, those skilled in the art can realize the present invention. However, it is easy for those skilled in the art to come up with various modifications of these embodiments, and have the inventive ability. It is possible to apply to various embodiments at least. Therefore, the present invention covers a wide range consistent with the disclosed principle and novel features, and is not limited to the above-described embodiments.

The block diagram which shows an example of a structure of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing explaining an example of the data processing of Advanced Content of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. The external view which shows an example of the external appearance of the remote control of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. The flowchart which shows an example of the subtitle display operation | movement of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the subtitle dialog on the display screen of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the subtitle dialog on the display screen of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the subtitle dialog on the display screen of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the subtitle dialog on the display screen of the reproducing | regenerating apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the parameter which the recording medium which the reproducing | regenerating apparatus concerning one Embodiment of this invention reproduces has. Explanatory drawing which shows another example of the parameter which the recording medium which the reproducing | regenerating apparatus concerning one Embodiment of this invention reproduces has.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Playback apparatus, 11 ... Data reading part, 12 ... MPU part, 12A ... Various information detection process part, 12B ... Priority reproduction setting process part, 12C ... OSD display process part, 12D ... Domain detection process part, 12E ... Reproduction stream Change processing unit, 13A ... disk, 13B ... network unit, 13C ... HDD unit, 14 ... information detection processing unit, 15 ... audio decoder, 16 ... video decoder, 17 ... sub video decoder, 18 ... work memory, 19 DESCRIPTION OF SYMBOLS ... Video processing part, 20 ... Audio D / A converter, 21 ... Video D / A converter, 22 ... External operation detection part, 23 ... Screen creation part, R ... Remote control.

Claims (6)

A reading unit that reads video information, caption information, and management information from a recording medium;
An operation unit for outputting an operation signal;
According to the operation signal of the operation unit, the subtitle of the subtitle information is determined by [Selected Subtitle Track Number] in [Presentation Parameters] in [Presentation Parameters] in [System Parameters] in the management information read by the reading unit. The track number is specified, the subtitle language code of the subtitle information is specified by [Selected Subtitle Language Code] in [Presentation Parameters] in [System Parameters], and the above-mentioned [System Parameters] [Selected Subtitle Language Code Extension] in [Presentation Parameters] identifies the subtitle language extension code, and [Visibility of Subtitle] in [Layout Parameters] in [System Parameters] identifies the subtitle information. A playback apparatus comprising: a processing unit configured to set and play back one piece of subtitle information included in the subtitle information by specifying an on / off state.   The processing unit identifies one of a plurality of subtitle information included in the subtitle information by a subtitle key and a cursor key on a remote controller with which the operation unit can communicate, and whether the subtitle information is on or off The playback apparatus according to claim 1, wherein the playback apparatus is specified.   The processing unit receives the operation signal in a state where a region for specifying the type of subtitle is selected in a subtitle dialog for selecting one subtitle from a plurality of subtitles included in the subtitle information. 2. The playback apparatus according to claim 1, wherein in the state where the type of the subtitle is specified and an area for specifying on / off of the subtitle is selected in the subtitle dialog, the on / off is specified in response to the operation signal. A playback method of a playback device for playing back a recording medium,
Read video information, subtitle information, and management information from the recording medium, and according to the given operation signal, [Selected Subtitle Track Number] in [Presentation Parameters] in [System Parameters] in the management information. To specify the subtitle track number of the subtitle information, specify the subtitle language code of the subtitle information by [Selected Subtitle Language Code] of the [Presentation Parameters] of the [System Parameters], and Specify the subtitle language extension code by [Selected Subtitle Language Code Extension] in [Presentation Parameters] in [System Parameters], and select [Visibility of Subtitle] in [Layout Parameters] in [System Parameters]. Thus, by specifying the on / off state of the subtitle information, one subtitle information included in the subtitle information is set and reproduced.   In response to an operation signal generated by operating a subtitle key and a cursor key on the remote controller, one of the subtitle information included in the subtitle information is specified, and whether the subtitle information is on or off is specified. 5. The reproduction method according to claim 4, wherein   In the subtitle dialog for selecting one subtitle from a plurality of subtitles included in the subtitle information, when the area for specifying the subtitle type is selected, the subtitle type is specified according to the given operation signal. 5. The playback method according to claim 4, wherein, in a state in which an area for specifying on / off of the subtitle is selected in the subtitle dialog, on / off is specified in accordance with a given operation signal.

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