WO2005045840A1 - 記録媒体、再生装置、プログラム、再生方法、システム集積回路 - Google Patents
記録媒体、再生装置、プログラム、再生方法、システム集積回路 Download PDFInfo
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- WO2005045840A1 WO2005045840A1 PCT/JP2004/016598 JP2004016598W WO2005045840A1 WO 2005045840 A1 WO2005045840 A1 WO 2005045840A1 JP 2004016598 W JP2004016598 W JP 2004016598W WO 2005045840 A1 WO2005045840 A1 WO 2005045840A1
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- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
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Definitions
- Recording medium playback device, program, playback method, system integrated circuit
- the present invention is an invention belonging to the technical field of application control for controlling the execution of an application for a virtual machine, and uses the control technology as a recording medium for distributing movie works such as a BD-ROM, Deeply related to applied technology when applied to playback devices for BD-ROMs.
- Patent Document 1 Japanese Patent No. 2813245
- a recording medium stores an application, a digital stream, and management information
- the application is a program written in a programming language for a virtual machine.
- a live range that can be executed by a virtual machine is defined in advance
- the management information indicates reproduction control of a digital stream to be performed simultaneously with execution of an application in the live range.
- the reproduction control of the digital stream to be performed simultaneously with the execution of the application is defined for each live range. Therefore, even if the application fails to start or the application terminates abnormally during the execution of the application, the digital stream being played at the same time is continued, resulting in "a state where something is reflected". be able to. As a result, the worst case in which the device is blacked out can be avoided, so that the manufacturer of the device can be provided with a minimum sense of security.
- FIG. 1 is a diagram showing an embodiment of an act of using a playback device according to the present invention.
- FIG. 2 is a diagram showing a file / directory structure in a BD-ROM.
- FIG. 3 is a diagram showing a configuration of PL information.
- FIG. 4 is a diagram showing a relationship between an AVClip time axis and a PL time axis.
- FIG. 5 is a diagram showing a batch specification made by four Clip_Information_file_names.
- FIG. 6 is a diagram showing an internal structure of PLmark information.
- FIG. 7 is a diagram showing a chapter definition by PLmark.
- FIG. 8 is a diagram showing an internal structure of SubPath information.
- S U bPl ay Item time axis playback section definition is a diagram showing a synchronization specification.
- FIG. 10 is a diagram showing an internal configuration of a Movie Object.
- FIG. 11 is a diagram showing an internal configuration of a BD-J Object.
- FIG. 12 (a) is a diagram showing programs and data stored in a Java (registered trademark) archive file.
- (B) is a diagram showing the internal structure of a class file.
- FIG. 13 is a diagram showing a state transition in a disc content.
- FIG. 14 is a diagram showing Titles that also constitute the dynamic scenario power in the HDMV mode.
- FIG. 15 is a diagram showing the internal structure of a Title composed of a BD-J mode dynamic scenario (BD-J Object).
- FIG. 16 is a diagram showing Titles without a playlist management table.
- FIG. 17 is a diagram showing a branch from Title in HDMV mode to Title in BD-J mode.
- FIG. 18 is a diagram showing a branch from Title in BD-J mode to Title in HDMV mode.
- FIG. 19 is a diagram showing the internal structure of index.bdmv.
- FIG. 20 (a) is a diagram showing an internal configuration of an application management table.
- (B) is a diagram showing the semantic contents of the information elements constituting the application management table
- FIG. 21 (a) is a diagram showing a time axis of the entire BD-ROM.
- (B) is a diagram showing a configuration on the time axis of the entire BD-ROM.
- FIG. 10 is a diagram showing a title playback section specified by a BD-J Object card.
- FIG. 23 is a diagram showing a typical example of a life span defined on the time axis of FIG. 22 (b).
- FIG. 24 A diagram showing disc contents including three titles: main title, online shopping title, and game title.
- FIGS. 25A and 25B are diagrams showing an example of an application management table and a live range.
- FIG. 26 is a diagram showing possible combinations of three modes (Present, AutoRun, Suspend) that the startup attribute can take, and three modes of the application state (non-start, running, Suspend) in the immediately preceding title .
- FIG. 27 (a) shows the internal structure of a playlist management table.
- (b) is a diagram showing the semantic contents of the information elements constituting the playlist management table.
- FIG. 7 is a diagram showing six combinations that can be taken between “state” and “reproducing state”.
- FIG. 29 (a) is a diagram showing a description example of a playlist management table and an application management table.
- FIG. 29 is a diagram showing how playlist playback and application execution progress according to the application management table and playlist management table described as shown in FIG. 29 (a).
- FIG. 30 (a) is a diagram showing another description example of the playlist management table.
- (B) is a diagram showing the progress of application execution and playlist playback based on the case of FIG. 30 (a).
- FIG. 31 (a) One (c) is a diagram showing a relationship between a playlist time axis and a title playback section.
- FIG. 32 A diagram showing an internal configuration of a playback device according to the present invention.
- FIG. 33 A diagram in which software stored in a ROM 24 and parts that are powerful with hardware are replaced with a layer configuration.
- FIG. 34 is a diagram schematically illustrating processing performed by a presentation engine 31—a module manager 34.
- FIG. 35 is a diagram schematically illustrating processing by an application manager 36.
- FIG. 36 is a diagram showing User Event Manager 37—Default Operation Manager 40.
- FIG. 37 is a diagram showing an internal configuration of a Java (registered trademark) virtual machine 38.
- FIG. 38 is a diagram showing four modes of application termination.
- FIG. 39 is a diagram showing a processing procedure by an application manager 36.
- FIG. 40 is a diagram showing a specific example of a playlist management table and an application management table.
- FIG. 41 (a) shows the internal structure of a BD-J Object according to the second embodiment.
- FIG. 4B is a diagram showing an internal configuration of an error management table.
- FIG. 42 shows the meaning of the five flags in the error management table.
- FIG. 43 is a diagram showing the progress of application execution and playlist playback based on the application management table and error management table described as in FIG. 43 (a).
- FIG. 44 is a flowchart showing a processing procedure of an application manager 36 according to the second embodiment.
- FIG. 45 is a flowchart showing a processing procedure of an application manager 36 according to the second embodiment.
- FIG. 46 is a flowchart showing a procedure of a notification process by the application manager 36.
- FIG. 47 is a view showing a processing procedure of an application manager 36 according to the third embodiment.
- FIG. 49 is a diagram schematically illustrating a process of causing a title unboundary application to select a PL.
- FIG. 50 is a flowchart showing a PL playback procedure by the Playback Control Engine 32.
- FIG. 51 is a flowchart showing a procedure for accepting angle switching, SkipBack, and SkipNext.
- FIG. 52 is a flowchart showing a processing procedure when SkipBack, SkipNext API is called.
- FIG. 53 is a flowchart showing details of a processing procedure by Presentation Engine 31.
- FIG. 54 is a flowchart showing a procedure for reproducing a SubPlayItem. Explanation of reference numerals
- FIG. 1 is a diagram showing a mode of use of a recording medium according to the present invention.
- a recording medium according to the present invention is a BD-ROM 100.
- the BD-ROM 100 is used for supplying a copyrighted work to a home theater system formed by a playback device 200, a remote control 300, and a television 400. Is done.
- the remote controller 400 includes a playback start (Play), a playback stop (Stop), a pause (Pause On), a release of the pause (Pause 011), a release of the StiU function (still off), and a speed designation.
- FIG. 2 is a diagram showing a file / directory structure in the BD-ROM.
- the BD-ROM has a BDMV directory under a Root directory.
- the BDMV directory contains files with the extension bdmv.
- BDMV directory (index.bdmv, MovieObject.bdmv, BD-J Object.bdmv).
- BDMV directory there are four subdirectories called a PLAYLIST directory, a CLIPINF directory, a STREAM directory, and a BDJA directory.
- STREAM directory contains files with the extension m2ts
- AVClip (00001.m2ts, 00002.m2ts, 00003.m2ts) stores an AVClip.
- AVClip has
- MainClip is a digital stream obtained by multiplexing multiple elementary streams such as a video stream, an audio stream, a presentation graphics stream (PG stream) that constitutes subtitles, and an interactive graphics stream (IG stream) that constitutes a menu. It is a stream.
- PG stream presentation graphics stream
- IG stream interactive graphics stream
- SubClip is an audio stream, graphics stream, text subtitle stream
- the files with the extension "mpls" are files storing playlist information.
- Playlist information can be played by referring to AVClip. This is information that defines a ray list.
- FIG. 3 is a diagram showing the structure of the PL information. As shown on the left side of the figure, the playlist information is composed of “MainPath information”, “PLMark information”, and “SubPath information”.
- the MainPath information (MainPathO) is composed of a plurality of Playltem information (PlayltemO) as indicated by a dashed arrow mpl. Playltem means that on one or more AVClip time axis,
- a playlist (PL) including a plurality of playback sections is defined.
- the broken line mp2 in the figure shows a close-up of the internal structure of the Playltem information.
- the Playltem information includes “Clip_information_file_name” indicating the corresponding AVClip, “In_time”, and “Out_time”.
- FIG. 4 is a diagram showing the relationship between AVClip and PL. The first level shows the time axis of the AVClip force, and the second level shows the time axis of the PL.
- the PL information includes three pieces of Playltem information, Playltem # l, # 2, and # 3, and three playback sections are defined by the In_time and Out_time of these Playltems # 1, # 2, and # 3. .
- a time axis different from the AVClip time axis is defined. This is the PL time axis shown in the second row.
- the definition of the Playltem information enables the definition of a time axis different from that of the AVClip.
- FIG. 5 is a diagram showing a batch specification made by four Clip_Information_file_names.
- the first stage to the fourth stage show four AVClip time axes (time axes of AVClips # 1, # 2, # 3, and # 4), and the fifth stage shows the PL time axis. .
- These four time axes are specified by four Clip_Information_file_names included in the Playltem information.
- a section (so-called multi-angle section) is also defined on the PL time axis, in which a switchable multi-angle video power is also provided.
- PLmark information is information for specifying an arbitrary section on the PL time axis as a chapter.
- FIG. 6 is a diagram showing the internal structure of the PLmark information. As shown by the lead line pml in the drawing, the PLmark information includes “ref_to_PlayItem_Id” and “Mark_time_stamp” .
- FIG. 7 is a diagram showing a chapter definition by PLmark. In the figure, the first row shows the AVClip time axis, and the second row shows the PL time axis. Arrow pkl, 2 in the figure indicates Playltem designation (ref_to_PlayItem Jd) and temporary point designation (mark_time_stamp) in PLmark. With these specifications, three chapters (Chapter # 1, # 2, and # 3) are defined on the PL time axis. This concludes the description of PLmark. Next, the SubPath information will be described.
- the SubPath information is information that defines one or more playback sections by specifying In_Time and Out_Time on the time axis of the SubClip, and has an internal configuration shown in FIG. As shown in this figure, the SubPath information consists of multiple
- SubPlayltem information includes “Clip—information—file—name”, “In—time”, “Out—time”, “Sync_PlayItemJd”, "Sync_start_Pts_of_PlayItem”. In-Time and Out-Time are defined with respect to the time axis of the SubClip. [Clip-information-file-name], [In-time], [Out-time]. “Sync—Playltemjd” and “Sync—start—Pts—of—Playltem” specify synchronization to synchronize the playback section on the SubClip time axis with the PL time axis. With this synchronization specification, the PL time axis and the SubPlayltem time axis proceed in synchronization.
- FIG. 9 is a diagram showing a playback section definition on the SubPlayltem time axis and a synchronization designation.
- the first row shows the PL time axis
- the second row shows the SubPlayltem time axis.
- SubPlayItem.IN_time indicates the start point of the playback section
- SubPlayltem.OuUime indicates the end point of the playback section. This shows that a playback section is also defined on the SubClip time axis.
- Sync_PlayItem_Id indicates synchronization designation for Playltem
- sync_start_PTS_of_PlayItem indicates designation of a single point on Playltem on the PL time axis.
- a feature of the playlist information in the BD-ROM is that it is possible to define a multi-angle section in which a plurality of AVClips can be switched and a synchronous section in which AVClip-SubClip can be synchronized.
- the above-described Clip information and playlist information are classified into “static scenarios”. Because the PL, which is a static playback unit, is Because it is defined. This concludes the description of the static scenario.
- a dynamic scenario is scenario data that dynamically defines AVClip playback control.
- “Dynamic” means that the content of playback control changes due to a state change in the playback device or a key event of the user's power!
- the BD-ROM two modes are assumed as the operation environment of the reproduction control.
- the first is an operating environment that is very similar to the operating environment of DVD playback devices, and is a command-based execution environment.
- the second is the operating environment of the Java (registered trademark) virtual machine.
- the first of these two operating environments is called HDMV mode.
- the second is called BD-J mode. Since these two operating environments exist, the dynamic scenario is described assuming one of these operating environments.
- a dynamic scenario assuming the HDMV mode is called a Movie Object, and is defined by management information.
- a dynamic scenario assuming the BD-J mode is called a BD-J Object.
- FIG. 10 shows the internal structure of MovieObject.bdmv. As shown on the left side of this figure
- MovieObject.bdmv is composed of a code sequence, “MOBJ”, “type—indicator”, “version—number”, and one or more MovieObjects, “MovieObjects0”.
- the leader line vhl in the figure closes up the internal structure of MovieObjects.
- MovieObjectsO has its own data length "length", the number of MovieObjects contained in it "number-of-mobjs", and number-of-mobjs MovieObjects "Movieubjects”. . These number_of_mobjs MovieObjects are identified by the identifier mobjjd.
- the leader line vh2 in the figure is an arbitrary line specified by the identifier mobjjd.
- the MovieObject has a "resume_intention_flag” indicating whether or not to resume playback after the MenuCall, and information indicating whether or not to mask the MenuCall. "Menu_call_mask”, “title_search_flag” indicating whether to mask the title search function, "number of navigation commands” number—of— navigation—command ”and number—of— navigation—command.
- the navigation command sequence is a command sequence that implements conditional branching, setting of a status register in a playback device, acquisition of a setting value of a status register, and the like.
- the commands that can be described in Movie Object are shown below.
- the first argument is the playlist number, which can specify the PL to be played.
- the second argument can be used to specify the Playltem included in the PL, the arbitrary time in the PL, the Chapter, the Mark, and the playback start position.
- a PlayPL function that specifies the playback start position on the PL time axis using Playltem
- Chapter provides a PlayPL function that specifies the playback start position on the PL time axis.
- a PlayPL function that specifies the playback start position on the PL time axis based on the time information
- the JMP command is a branch that discards the current dynamic scenario in the middle (discard) and executes the branch destination dynamic scenario as an argument.
- BD-J Object is a BD-J mode dynamic scenario described in the Java (registered trademark) programming environment.
- FIG. 11 is a diagram showing the internal structure of BD-J Object.bdmv.
- BD-J Object.bdmv is a "type-indicator" indicating the code system IJ, BOBJ, and "version-number", and one or more BD-J Object. It consists of “BD-J Objects0”.
- the lead line bhl in the figure closes up the internal structure of BD-J Objects.
- BD-J ObjectsO has “length” which is its own data length, “number-of-bobjs” which is the number of BD-J Objects included in itself, and number-of- bob js BD-J It consists of the object “BD-J Objects”. These number_of_bobjs BD-J Objects are identified by the identifier bobjjd.
- a lead line bh2 in the figure shows a close-up of the internal configuration of an arbitrary BD-J Object [bobj_id] 0 specified by the identifier bobjjd.
- the BD-J Object is "
- Playlist Management—Table [boDj—id] ”.
- the BD-J Object is almost the same as the Movie Object, including "resume-intention-flag”, “menu_call_mask”, and "title_search_flag”.
- PL playback in the MovieObject is performed according to the description of the navigation command (PlayPl command) that commands the PL playback.
- the description can be made by incorporating “Playlist_Management_Table [bobjjd]” indicating BD into BD-J Object.
- the description can be made by incorporating the PL playback procedure into the application that also refers to the application management table.
- the playlist playback procedure can be incorporated into both the description of the playlist management table and the description of the PL playback procedure in the application.
- Java (registered trademark) application consists of one or more xlet programs loaded into a virtual machine's heap area (also called work memory).
- An application is composed of the xlet program and data loaded in the work memory. The above is the configuration of the Java (registered trademark) application.
- the Java (registered trademark) application corresponds to a Java (registered trademark) archive file (00001.jar, 00002.jar) stored in the BDJA directory under the BDMV directory in FIG.
- the Java (registered trademark) archive file will be described with reference to FIG.
- the Java (registered trademark) archive file (00001.jar, 00002.jar in FIG. 2) is a file obtained by combining one or more class files, one or more data files, and the like.
- FIG. 12A shows programs and data stored in an archive file. The data in this figure is obtained by collecting a plurality of files in which the directory structure shown in the frame is arranged by a Java (registered trademark) archiver.
- the directory structure shown in the frame is composed of a Root directory, a Java (registered trademark) directory, and an image directory. Common.pkg is stored in the Root directory, and class files are stored in the Java (registered trademark) directory.
- Java (registered trademark) archive files can be obtained by combining them with a Java (registered trademark) archiver.
- the powerful class files and data are expanded when they are read from the BD-ROM to the cache, and are treated as multiple files placed in directories on the cache.
- the file name of the Java (registered trademark) archive file "zzzzz",!, And the five-digit number indicate the application ID (applicationlD).
- This Java (registered trademark) key When the live file is read into the cache, by referring to the numerical value in this file name, it is possible to extract the program and data constituting an arbitrary Java (registered trademark) application.
- the class files (aaa.class, bbb.class in the figure) in the figure are class files corresponding to the above-mentioned xlet program.
- the playback procedure in BD-J mode is specified by an xlet program that is an instance of this class file.
- the xlet program is a Java (registered trademark) program that can use an interface of the JMFOava (registered trademark) Media FrameWork) method, and performs processing based on a key event according to a method such as JMF. Since the xlet program can perform JMF processing, it is possible to instruct the playback device to play back a playlist by generating an instance (0MF player instance) for an MPLS file. In addition, in the xlet program, processing specific to the BD-ROM playback device can be executed by describing the function API call.
- the xlet program can execute a procedure of accessing a WWW site and downloading content. As a result, it is possible to play a novel work that mixes the download content and the playlist playback.
- FIG. 12B shows the internal structure of the class file.
- the class file consists of “constant pool”, “interface”, and “methods 1, 2, 3,... ⁇ ”, just like a normal class file.
- the methods in the class file include methods in which key events that trigger behavior are registered in advance (EventListner), methods that instruct JMF playback procedures (methods of JMF player instances), and function APIs on the BD-ROM playback device side There is a method that calls In these methods, procedures such as operations are described by using local variables assigned to the method itself and arguments used to call the method.
- the above is the description of the Java (registered trademark) archive file.
- the programs and data constituting the application are collected in a Java (registered trademark) archive file, but may be an LZH file or a zip file.
- FIG. 13 is a diagram showing a state transition in the disc content.
- the square frame in this figure is Title.
- Title is a playback unit that corresponds to one "state” in a state transition specific to the disc content. Titles include “FirstPlayTitle”, which is played first when loading a BD-ROM, “Top_menuTitle”, which forms the Top-Menu, and other general “Title”.
- the state transition shown in this figure means that “FirstPlayTitle” is played at the time of BD-ROM loading, a branch to “Top_menuTitle” occurs, and the selection of the top menu is awaited.
- the dynamic trademark represents the creator and distributor of the movie, and FirstPlayTitle plays the role of playing back the dynamic trademark first when BD-ROM is loaded. Take responsibility.
- FIG. 14 is a diagram showing two titles that also constitute the dynamic scenario power of the HDMV mode.
- the first row of the figure shows an arbitrary Title (titlejd) identified by the identifier titlejd.
- the second row shows a MovieObject sequence consisting of one or more MovieObjects that make up the Title.
- the third row shows the navigation commands that make up the MovieObject.
- the title in the HDMV mode can define a movie work accompanied by video playback. This is the structure of Title defined by the dynamic scenario in DMV mode.
- FIG. 15 is a diagram showing an internal structure of a Title composed of a BD-J mode dynamic scenario (BD-J Object).
- the first row shows an arbitrary Title identified by the identifier title jd, and the second row shows that Title.
- the third row shows the application management table and playlist management table inside the BD-J Object.
- the fourth tier shows the applications that will operate with the third tier application management table.
- this application includes a method for instructing the playback device to jump to another Title (a method for calling JumpTitleAPI)! / The branch to the other Title shown will be realized.
- the playlist management table is described in the third row, the PL is played along with the execution of the application in the fourth row.
- the BD-J Object includes an application management table and a playlist management table, application execution and PL playback are performed simultaneously as shown in the fourth row. Simultaneous execution capability of such application execution and PL playback ⁇ This is a feature of Title in DJ mode.
- the playlist management table does not exist in all BD-J Objects.
- the playlist management table is an optional component, and some BD-J objects have a playlist management table, and some BD-J objects do not have a playlist management table.
- FIG. 16 is a diagram showing a Title having a playlist management table. Since there is only an application management table, in a BD-J Object that does not have a playlist management table, only the application operation is specified as shown in the fourth row. According to the specification of the application operation described above, the title of only the control procedure without PL playback is specified. In FIG. 14, the branch from the title in the HDMV mode to the title in the HDMV mode is described. However, as shown in FIG.
- Index.bdmv is a table that indicates a Movie Object or BD-J Object that constitutes the title.
- FIG. 19 is a diagram showing the internal structure of index.bdmv.
- index.bdmv contains "type-indicator” having a value indicating "INDX”, “version-number”, and "Indexes_start_address” indicating a relative address from the top of this file to Indexes.
- Indexes () is an index for each Title. As indicated by the dashed leader line ixl, “Indexes” includes “length” and “length”.
- FirstPlayback () ⁇ FirstPlayback—mobj—id—rei is an index for the FirstPlayTitle, and stores a reference value (FirstPlayback_mobj_id_rel) of a MovieObject identifier that constitutes the FirstPlayTitle.
- TopicMenuO ⁇ TopMenu—mobj—id—rei is an index to Top-MenuTitle, and stores the reference value (TopMenu_mobjjd_rel) of the MovieObject identifier that constitutes TopjnenuTitle.
- Title [0] 0-Title [number—of—Titles—1] 0 is an index for Title other than FirstPlayTitle ⁇ Top—MenuTitle, and number_of_Title exists! These are identified IJ with the identifier title jd.
- the index specified by the identifier titlejd is set to Title [title_id] 0.
- the leader line ix2 in the figure shows a close-up of the internal configuration for Title [titlejd] ().
- "Title [title_id] 0" is composed of "Title_Playback_Type [title_id]” indicating the type of Title playback, such as "Title [title jd] power branch” and the like. It consists of “Title_access_Flag [titlejd]”, which indicates whether or not execution of the search function is permitted, and “title_mobjjd_rel [title_id]”, which uniquely indicates the MovieObject that constitutes the Title.
- the application management table and the playlist management table included in the BD-J Object are the main constituent elements of the present embodiment, and will be described in detail. First, the application management table (AMT) will be described.
- FIG. 20A shows the internal structure of the application management table.
- the application management table includes “life-cycle”, “apli-id-ref”, “run_attribute”, and “run_priority”.
- Fig. 20 (b) shows the meaning of the information elements that make up the application management table.
- Apli_id_ref indicates which application has the live range shown on the left by describing a reference value for “application identifier”.
- the application identifier is represented by a 5-digit numerical value zzzzz given as a file name in a Java (registered trademark) archive file. “Apli_id_ref” describes this 5-digit number.
- “Run_attribute” describes the “start attribute” of the application in the life cycle.
- the start attributes include types such as AutoRun, Present, and Susped.
- the live range indicates a range in which the application can live on the work memory of the virtual machine on the time axis of the entire content recorded on the BD-ROM.
- "Survival" in the work memory refers to the state in which the xlet program power that constitutes the application is read into the work memory and becomes executable by the virtual machine.
- the service starting point and the service end point at the time axis start and end the application service at the time axis. It is important to specify "" clearly. The ability to define the starting point and ending point of this service.
- FIG. 21 (a) is a diagram showing the time axis of the entire disc
- FIG. 21 (b) shows the configuration on this time axis.
- the time axis of the entire disc includes a section where FirstPlay Title is reproduced, a section where TopMenu Title is reproduced, and a section where title # l is reproduced.
- the playback section of these Titles is defined in terms of power.
- a Title is composed of one or more MovieObjects or only one BD-J Object. However, the period during which it is valid can be considered as a Title playback section.
- FIG. 22 (a) is a diagram showing, on the time axis of the entire BD-ROM, a title playback section in which the BD-J Object strength specified by the identifier bobjjd is also specified.
- the BD-J Object specified by the identifier bobjjd constitutes one Title
- one of the BD-R0M time axes on which the BD-J Object specified by the identifier bobjjd is valid is valid.
- the section can be considered as the title playback section.
- the MovieObject specified by the identifier mobjjd constitutes one Title
- one section on the BD-R0M time axis in which the MovieObject specified by the identifier mobjjd is valid is It can be considered as a Title playback section.
- the end of the period during which the MovieObject and the BD-J Object are activated is until the Title branch OumpTitle) is made.
- the Title branch JumpTitle
- the dynamic scenario that is the target of execution is treated as the current MovieObject and current BD-J Object
- a JumpTitle occurs in that MovieObject or BD-J Object.
- One section up to is treated as a Title playback section.
- PL playback procedure can be described as one processing procedure. If there is a description of the PL playback procedure, all or part of the PL time axis described above will belong to the Title section.
- a playlist management table is described in 80 Objects in the example of FIG. 22 (&).
- the PL time axis belongs to the Title section corresponding to the BD-J Object, as shown in FIG. Since multiple chapters (Chapter # 1, # 2, # 3) can be further defined on this PL time axis, the time axis on BD-R0M includes the entire BD-R0M-Title-PL- chapter and ⁇ The domain will exist.
- FIG. 23 is a diagram showing a typical example of a life span defined on the time axis of FIG. 22 (b).
- the application includes “Title Boundary Break” with Title as a live range, “Chapter Boundary Precaution” with Title within a live range, and a live range on the BD-ROM as a whole.
- Title unboundary applications There are three types of "title unboundary applications”.
- the life cycle of the title boundary application can be defined using the identifier of the title.
- the life span of a chapter boundary application can be defined using a combination of the identifier of the title to which the chapter belongs and the identifier of the chapter.
- FIG. 24 is a diagram showing a disc content including three titles: a main title, an online shopping title, and a game title. On the right side of this figure
- Title # l of the three titles consists of three applications: applications, application # 2, and applications.
- title # 2 contains two applications called application ⁇ and applications, and title # 3 contains application ⁇ .
- applications are started in both title # l and title # 2.
- FIG. 25 (a) also shows the membership force indicated by the broken line in FIG. 24 when the life span of each application is graphed.
- the horizontal axis is the title playback section, and the vertical axis direction
- the live range of each application is placed in the application.
- applications and application ⁇ belong only to title # l, so their live range remains within title # l. Since the applications belong only to title # 2, these live ranges remain within title # 2. Since application ⁇ belongs to title # 3 only, these live ranges remain in title # 3. Since applications belong to title # l and title # 2, their survival spans title # l—title # 2.
- the application management table is described based on this life cycle, the application management tables of title # 1, # 2, and # 3 are as shown in FIG. 25 (b).
- the application #l, application # 2, and application ⁇ are loaded into the work memory at the time of starting playback of title #l.
- application # l and application ⁇ are deleted from the work memory to control only applications.
- control can be performed such that applications are loaded into the work memory at the start of title # 2 playback, and application # 3 and # 4 are deleted at the start of title # 3.
- the startup attribute is ⁇ AutoRun '' indicating automatic startup, ⁇ Present '' indicating that it is not a target of automatic startup but can be placed in the work memory of the virtual machine, and is placed in the work memory of the virtual machine However, there is "Suspend" in which CPU power cannot be allocated.
- AutoRun is an attribute indicating that the application is read into the work memory and executed at the same time as the branch of the corresponding title. From one title to another When there is a branch, the management entity (application manager) that performs application management
- the application that is alive at the branch destination title and whose startup attribute is set to AutoRun is read into the work memory of the virtual machine and executed. This will cause the application to be launched automatically with the title branch.
- the activation attribute “Present” is a continuation attribute, and indicates that the state of the application at the branch source title is continued. An attribute indicating that the corresponding application is to be executed. If the activation attribute power is S “Pre Sent ”, the application to which this activation attribute is assigned is permitted to be called from another application.
- the management entity application manager
- the management entity that manages the application checks whether or not the application's application ID is described in the application management table and the startup attribute is “Present”. judge. If “Present”, load the application into work memory. On the other hand, if the application ID of the called application is described in the application management table as!, Na! /, The application is not loaded into the work memory.
- the call by the application is limited to the application to which the “Present” is assigned.
- "Present” is a default startup attribute given when the startup attribute is not explicitly specified. Therefore, if the startup attribute of an application is "----", the startup attribute of the application is not specified. The startup attribute of this means that this is Present.
- “Suspend” means that an application is placed in a state where resources are allocated and CPU power is not allocated. Powerful Suspend is useful for realizing a process of passing through a side path during the execution of a game title, for example.
- FIG. 26 is a diagram showing possible combinations of three modes (Present, AutoRun, Suspend) that the startup attribute can take, and three modes of the application state (non-starting, running, and Suspend) in the immediately preceding title. If the immediately preceding state is "non-start”, if the start attribute is ⁇ 'AutoRun ", the application will be started at the branch target title.
- the activation attribute is “Suspend”, the state of the application is suspended. When the immediately preceding state is “Suspend”, if the activation attribute of the branch destination title is “Suspend”, Suspend is maintained. If "Present” or "AutoRun”, the application will resume at the branch target title.
- the immediately preceding state is “Suspend” and the activation attribute of the branch destination title is “Present”, the immediately preceding state, that is, the suspended state may be maintained.
- This startup priority takes a value from 0 to 255, and determines which application is forcibly terminated when memory resources run out or CPU load increases, and which application takes resources. ! /, Which is used to make judgments when the application manager performs processing. In this case, the application manager terminates the operation of the application with a low activation priority and continues the operation of the application with a high activation priority.
- the startup priority is also used for arbitration between applications when a request for a playing PL conflicts.
- the application is fast-forwarding a certain playlist. If another application makes a pause request for the same playlist, the activation priorities assigned to these applications are compared. If the priority of the application for which fast-forward is ordered is high, fast-forward by such application is continued. Conversely, if the application that ordered the pause has a higher startup priority, pause the PL during fast forward.
- the number of applications that can operate on the virtual machine can be limited to a predetermined number or less based on the above-mentioned life cycle 'start attribute' start priority at the time of authoring. Works. Therefore, stable operation of the application can be guaranteed.
- the playlist management table is a table that indicates playback control to be performed simultaneously with the execution of each application in the application section.
- the operation of the application is unstable, and may fail to start or abnormally terminate. Therefore, in the present embodiment, a playlist management table is provided for each live range of the application as a Fail Safe mechanism in the event of a startup failure or abnormal termination.
- the play list management table is information that specifies the playback control to be performed at the same time when the live range of a certain application starts. This playback control is AVClip playback based on playlist information. By simultaneously performing playback control based on playlist information, application execution and playlist playback are performed simultaneously.
- the playlist management table is provided for each life cycle of the application.
- the applications provided with the playlist management table are limited to title boundary applications. This is because, in the title unboundary application, all titles are set as a live range, so the control of playing the playlist simultaneously with the execution of the application is not suitable.
- the live range is defined on the premise that the application execution is started from a chapter in one playlist, so that it is not necessary to define playlist playback.
- the playlist management table is defined as a live range that has one or more Title powers.
- FIG. 27A shows the internal structure of the playlist management table. As shown in the figure, the playlist management table includes “PL_id_ref” and “Playback_Attribute”.
- FIG. 27 (b) shows the meaning of the information elements that make up the playlist management table.
- PL_id_ref indicates which PL can be reproduced in the life cycle of the application by describing the “reference value” for the PL identifier.
- the PL identifier is represented by a five-digit numerical value YYYYY assigned as the file name in the file YYYYY.MPLS! Since this YYYYY is described, “PL_id_ref” is re-created in the corresponding Title. Indicates which PLs can be produced.
- Playback_Attribute is an attribute similar to the start attribute in the application management table, and is a playback attribute that defines how to play back the PL described in "PL_id_ref" at the start of the title.
- Play attributes for PL include "AutoPlay”, ""
- AutoPlay is an attribute indicating that the play list is reproduced at the same time as the branch of the corresponding title. If there is a branch from a certain title to another title, the management entity (application manager) that manages the application can play back that branch destination title and play it with the playback attribute set to AutoPlay. Start playing the list. As a result, the playlist in which the activation attribute is set to AutoPlay is automatically activated together with the title branch.
- Present is a continuation attribute like Present in the activation attribute, and indicates that the state of the PL in the branch source title is continued. This attribute indicates that the corresponding playlist is to be reproduced! For example, there are two Titles that are played back consecutively.
- the playback attribute of a playlist is set to AutoPlay
- the playlist management table on the branch destination Title side the playlist is It is assumed that the playback attribute of is set to Present.
- the playback time of the playlist is two hours long, and a branch occurs when one hour elapses.
- the playback attribute is set to Present in the branch destination Title
- the playlist in the branch destination Title is reproduced immediately after the already-reproduced section of one hour. If the playback attribute is set to Present in this way, even if there is a branch between Titles, playlist playback can be started from the remaining part. This makes it possible to easily realize a “common play of playlist playback between titles” in which a common playlist is played in a series of branched Titles. If any of the playback attributes is set to Present, the playback of one common playlist can be continued regardless of the branch to any of the multiple playlists.
- the playback attribute is "Pre Se nt" playlists this playback attribute is assigned, it will be reproduced by a reproduction request from another application.
- the management entity application manager
- the management entity that performs application management describes the request in the PLjd_rel3 ⁇ 4 playlist management table of the requested playlist and plays the playlist. It is determined whether the attribute is “!” Or “Off” of “AutoPlay” or “Present”. If it is one of "AutoPlay” Present ", play the playlist. On the other hand, if the requested playlist is not described in the PLjcLrel ⁇ playlist management table, the playlist is not reproduced.
- the playlist playback requested by the application is limited to the playlist to which "! Of “AutoPlay” or "Present” is added. "Pre Se nt”, since the playback attribute of the default, which is provided when you do not explicitly specify a playback attribute, a playback attribute is not specified in the play list "-" and its play list of a The playback attribute means this is Present.
- Fig. 28 shows three modes that the branch destination Title can take (no playlist management table (0, playlist management table exists and AutoPlay (ii), playlist management table exists, and Pre Sent (m )) And six possible combinations of PL states (non-reproducing state, reproducing state) in the immediately preceding title.
- FIG. 29 (b) is a diagram showing how the playlist playback and the application execution proceed according to the application management table and the playlist management table described as in FIG. 29 (a).
- the application management table and playlist management table are set as described above, so the title #l side has a certain description Execution is stopped. PlayList # l that is not described on the title # 2 side is also stopped.
- PlayList # 2 and application ⁇ which are described on the title # 2 side, automatically start playback and execution. If there is a title branch, the playlist to be reproduced can be switched to another playlist upon the branch.
- the application management table and the playlist management table in this way, when the playlist playback is switched at the time of branching, it is possible to prescribe the processing at the authoring stage.
- Startup priorities of 200, 128, 200 are given. By giving these activation priorities, arbitration can be performed when control requests for PlayList # l and PlayList # 2 conflict. Here, it is assumed that applications instruct PlayList # l to fast forward. On the other hand, it is assumed that applications make a pause request. In this case, the application management tape Therefore, arbitration is performed for both applications according to this startup priority. As a result, if the request by applications is rejected and the control by application ⁇ is continued, the processing can be defined at the time of authoring. By using the activation priority in combination with the playlist management table, it is possible to cause the playback device to perform even arbitration when control over the playlist conflicts.
- FIG. 30 (a) is a diagram showing another description example of the playlist management table. This figure assumes that two consecutive titles (title # l, title # 2) are! /, And the playlist management table on the title # l side has PlayList # as an AutoPlay playlist. PlayList # 2 is described as a playable playlist, and the application management table on the title # l side describes applications that are AutoPlay applications and application ⁇ as an executable application. On the other hand, PlayList # 2 and PlayList # 3 are described as playable playlists in the playlist management table on the title # 2 side, and applications are described as AutoRun applications in the application management table. FIG.
- FIG. 30 (b) is a diagram showing the progress of application execution and playlist playback based on the case of FIG. 30 (a). Since application ⁇ is described as an AutoRun application in the application management table of title # l, applications are automatically started when title # l starts. On the other hand, application # 2 is described as an executable application in the application management table of title # l, so application ⁇ is invoked by call ydl from application ⁇ .
- PlayList # 2 is playable in addition to PlayList # l, so applications stop playback of PlayList # l, and By requesting the playback of # 2, a playlist change can be performed.
- PlayList # 2 and PlayList # 3 are described as playable playlists. And there is no playlist to which the AutoPlay attribute is added. Therefore, even if the playback of PlayList # l that was automatically played back at the start of title # l continues to be called title, the playback of PlayList # l ends automatically.
- PlayList # 2 reaches title # 2 while the playback of PlayList # 2 continues, the playback of PlayList # 2 continues even after the start of title # 2.
- PlayList # 2 and PlayList # 3 are described as playable playlists. Therefore, the applications running in title # 2 stop the playback of PlayList # 2 and request the playback of PlayList # 3 instead, so that the playlist being played can be changed.
- FIG. 31A shows a title playback section of a title whose playback attribute is set to AutoPlay. If the playback attribute is set to indicate AutoPlay, playback of AutoPlayPL starts at the same time as playback of the title starts. Here, even if the application operates normally and ends normally, the title playback section is determined based on the PL time axis.
- FIG. 31B shows a case where the play attribute is set to “AutoPlay” in the playlist management table and the application ends abnormally. As a result of such abnormal termination, the playback of AutoPlayPL continues, with no application running. Also in this case, the PL time axis of AutoPlayPL is the title playback section.
- FIG. 31 (c) shows a case where the playback attribute is set to indicate “AutoPlay” in the playlist management table, and the activation of the main application has failed. Also in this case, since the AutoPlayPL playback is performed irrespective of the failure in starting the application, the time axis of the AutoPlayPL becomes the title playback section.
- the playback attribute of the playlist management table is set to "AutoPlay", it takes 5 to 10 seconds to start the Java (registered trademark) application. Also, while it is being activated, it will be in a "state where something is being shown” for the time being. At the start of the execution of the title, even if it takes a long time to start the application, the screen will be in a state where something is shown for the time being. This makes it possible to compensate for the prolonged start-up delay due to the time required to start the application.
- FIG. 32 is a diagram showing the internal configuration of the playback device according to the present invention.
- the reproducing apparatus according to the present invention is industrially produced based on the interior shown in the drawing.
- the playback device according to the present invention mainly includes two parts, a system LSI and a drive device, and can be industrially manufactured by mounting these parts on a cabinet and a substrate of the device.
- a system LSI is an integrated circuit that integrates various processing units that perform the functions of a playback device.
- the playback devices produced in this way include a BD-ROM drive 1, a read buffer 2, a demultiplexer 3, a video decoder 4, a video plane 5, a P-Graphics decoder 6, a Presentation Graphics plane 7, a synthesizer 8, a font generator 9, I-Graphics decoder 10, switch 11, Interactive Graphics plane 12, synthesis unit 13, CLUT unit 14, CLUT unit 15, audio decoder 16, Network Device 17, Local Storage 18, read buffer 19, demultiplexer 20, instruction It comprises a ROM 21, a user event processing unit 22, a PSR set 23, a CPU 24, a scenario memory 25, a local memory 26, and a switch 27.
- the BD-ROM drive 1 loads / ejects the BD-ROM and executes access to the BD-ROM.
- the read buffer 2 is a FIFO memory in which TS packets read from the BD-ROM are stored on a first-in first-out basis.
- the demultiplexer (De-MUX) 3 extracts the TS packet from the read buffer 2 and Convert the TS packets that make up the TS packets into PES packets. Then, of the PES packets obtained by the conversion, those having the PID set by the CPU 24 are output to any of the video decoder 4, the P-Graphics decoder 6, the I-Graphics decoder 10, and the audio decoder 16.
- the video decoder 4 decodes the plurality of PES packets output from the demultiplexer 3 to obtain an uncompressed picture and writes the picture in the video plane 5.
- the video plane 5 is a plane for storing uncompressed pictures.
- the plane is a memory area for storing one screen of pixel data in the playback device.
- the resolution in the video plane 5 is 1920 ⁇ 1080, and the picture data stored in the video plane 5 is composed of pixel data represented by a 16-bit YUV value.
- the playback image of each frame in the video stream can be scaled. Scaling means changing the reproduced image for each frame to either 1/4 (called quota) or 1/1 (called full scale) of the entire video plane 5. Since the powerful scaling is performed in accordance with the instruction from the CPU 24 in the BD-J mode, it is possible to produce a screen image in which the reproduced image of the video stream is driven to the corner of the screen or completely displayed.
- the P-Graphics decoder 6 decodes the presentation graphics stream read from the BD-ROM, and writes uncompressed graphics to the Presentation Graphics plane 7. Subtitles will appear on the screen by decoding the graphics stream
- the Presentation Graphics plane 7 is a memory having an area for one screen and can store one screen of uncompressed graphics.
- the resolution of this plane is 1920 X 1080, and each pixel of uncompressed graphics in the Presentation Graphics plane 7 is represented by an 8-bit index color.
- CLUT Color Lookup Table
- the synthesizing unit 8 synthesizes the uncompressed picture data (0) stored in the video plane 5 with the content stored in the Presentation Graphics plane 7.
- the font generator 9 converts the text code included in the textST stream into a bitmap using the character font, and writes the bitmap to the Presentation Graphics plane 7.
- the I-Graphics decoder 10 decodes the IG stream read from the BD-ROM or the Local Storage 8 in the HDMV mode, and writes uncompressed graphics to the Interactive Graphics plane 12.
- the switch 11 is a switch for selectively writing any one of the font sequence generated by the font generator 9 and the graphics obtained by decoding by the P-Graphics decoder 6 to the Presentation Graphics plane 7.
- the synthesizing unit 13 synthesizes the contents stored in the Interactive Graphics plane 12 with the synthesized image output from the synthesizing unit 8 (the uncompressed picture data and the contents stored in the Presentation Graphics plane 7). Are synthesized. Applications can be made
- Graphics written in the Graphics decoder 10 can be displayed by overlaying it on uncompressed picture data.
- the CLUT unit 14 converts the index colors in the uncompressed graphics stored in the video plane 5 into Y, Cr, Cb values.
- the CLUT unit 15 converts an index color in uncompressed graphics stored in the Interactive Graphics plane 12 into Y, Cr, Cb values.
- the audio decoder 16 decodes the PES packet output from the demultiplexer 3 and outputs uncompressed audio data.
- Network Device 7 realizes the communication function of the playback device.
- the URL specification capability is provided by the 3 ⁇ 4ava (registered trademark) application, and the TCP connection, the FTP connection, etc. with the website corresponding to the URL are provided.
- a Java (registered trademark) application is downloaded from a website.
- the Local Storage 8 stores content supplied from a recording medium other than a BD-ROM or a communication medium, such as content downloaded from a web site through a connection established by the Network Device 7, together with metadata. Hard disk. This metadata is information for binding and managing the download content to the Local Storage 18. By accessing the Local Storage 18, the application in the BD-J mode can perform various operations using the download content length. Processing can be performed.
- the read buffer 19 is a FIFO memory, and when the downloaded content stored in the Local Storage 8 includes a SubClip, stores the TS packets constituting the SubClip in a first-in first-out manner.
- a demultiplexer (De-MUX) 20 extracts a TS packet from the read buffer 19 and converts the TS packet into a PES packet. Then, of the PES packets obtained by the conversion, those having a desired PID are output to the font generator 9, the I-Graphics decoder 10, and the audio decoder 16.
- the command ROM 21 stores software for controlling the playback device.
- the user event processing unit 22 In response to a key operation on the front panel of the remote control or the playback device, the user event processing unit 22 outputs a user event for performing the operation to the CPU 24.
- the PSR set 23 is a register built in the playback device, and includes 64 Player Status Registers (PSRs) and 4096 General Purpose Registers (GPRs). Of the Player Status Register settings (PSR), PSR4—PSR8 are used to represent the current playback point.
- PSRs Player Status Registers
- GPRs General Purpose Registers
- PSR4 indicates the title to which the current playback point belongs by being set to a value of 1 to 100. , 0 indicates that the current playback point is the top menu.
- PSR5 indicates the chapter number to which the current playback point belongs by being set to a value of 11-999, and indicates that the chapter number is invalid in the playback device by being set to OxFFFF.
- PSR6 when set to a value from 0 to 999, indicates the number of the PL (current PL) to which the current playback point belongs.
- PSR7 when set to a value from 0 to 255, indicates the Playltem (current PlayItem) number to which the current playback point belongs.
- PSR8 indicates the current playback point (current PTM (Presentation TiMe)) using a time accuracy of 45 KHz by being set to a value of 0—OxFFFFFF. From the above PSR4—PSR8, the PSR8 shown in FIG. It is possible to specify where the current playback point is on the time axis of the entire BD-ROM.
- the CPU 24 executes software stored in the instruction ROM 21 to control the entire playback device.
- the contents of this control dynamically change according to the user event output from the user event processing unit 22 and the set value of each PSR in the PSR set 23.
- the scenario memory 25 stores the current PL information and current This is the memory for storing the Clip information of this.
- the current PL information refers to the information currently being processed from among the multiple PL information recorded on the BD-ROM.
- the current Clip information is the information that is currently being processed among the multiple pieces of Clip information recorded on the BD-ROM.
- the local memory 26 is a cache memory for temporarily storing the recorded contents of the BD-ROM.
- the presence of the local memory 26 improves the efficiency of application execution in the BD-J mode.
- the switch 27 is a switch for selectively inputting various data read from the BD-ROM and the Local Storage 8 to any of the read buffer 2, the read buffer 19, the scenario memory 25, and the local memory 26.
- FIG. 33 is a diagram in which a portion composed of software and hardware stored in the ROM 24 is replaced with a layer configuration.
- the layer configuration of the playback device is composed of the following a), b) and c).
- the hardware configuration of the playback device shown in FIG. 32 belongs to the first layer.
- “decoder” including the video decoder 4, the P-Graphics decoder 6, the I-Graphics decoder 10, and the audio decoder 16 in the hardware configuration shown in FIG. Includes “plane” consisting of video plane 5, Presentation Graphics plane 7, and Interactive Graphics plane 12, BD-ROM and its file system, Local Storage 18 and its file system.
- the second layer "BD Player Model ',” is composed of the following layers bl) and b2).
- the third layer "Application Runtime Environment” consists of the following layers cl) and c2). That is,
- this module manager 34 is located at the highest level.
- the module manager 34 has a detour url that bypasses the HDMV module 33 and the BD-J module 35 to reach the Playback Control Engine 32. . Due to this detour, the module manager 34 has a configuration in which the “L” shape is inverted in the layer model of FIG. 33, and has a built-in User Event Manager 37.
- the BD-J module 35 is a so-called Java (registered trademark) platform. (Trademark) The configuration is based on the virtual machine 38. In the work memory in the Java (registered trademark) virtual machine 38, various system programs and applications operate! Above the Java TM virtual machine 38, the Application Manager 36, Event Listner Manager 39 (Default Operation Manager 40) is one such system program. The PLMT Prcessor 41 exists in the application manager 36. Further, a Permission Controller 42 is interposed between the BD-J module 35 and the Playback Control Engine 32.
- FIG. 34 is a diagram schematically illustrating the processing performed by the Virtual File System 30—the module manager 34.
- the Virtual File System 30 is a virtual file system for handling the download contents stored in the Local Storage 8 together with the disc contents in the BD-ROM.
- the download content stored in the Local Storage 8 includes SubClip, Clip information, and playlist information.
- the playlist information in this download content differs from the playlist information on the BD-ROM in that it can be specified whether the Clip information exists in the BD-ROM or the Local Storage18.
- the AVClip on the Virtual File System 30 and the BD-ROM can be specified by specifying a 5-digit numerical value corresponding to the file body of the file storing the Clip information in the Clip_Information_file_name in the Playltem information and the Clip_Information_file_name in the SubPlayltem information.
- the “, BD-ROM” in the present application includes the combination of the Local Storage 8 and the BD-ROM.
- a virtual recording medium is also included.
- the Presentation Engine 31 executes an AV playback function.
- the AV playback function of the playback device is a group of traditional functions followed by DVD players and CD players. Playback starts (Play), stops playback (Stop), pauses (Pause On), and releases pause (Pause). Oil), Release of Still function (still off), Fast forward with specified speed (Forward Play (speed)), Rewind with specified speed (Backward Play (speed)), Audio switching (Audio Change), Sub video switching ( Subtitle Change) and Angle Change.
- the Presentation Engine 31 which implements the AV playback function, decodes the video decoder 4, the P-Graphics decoder 6, and the I-Graphics decoder so as to decode the portion of the AVClip read on the read buffer 2 at the desired time. 10, control the audio decoder 16.
- PSR8 current PTM
- a playback control engine (Playback Control Engine (PCE)) 32 executes various functions such as a playback control function (0, a status acquisition Z setting function GO in the PSR set 23) and a play list.
- the function means that the playback start and stop are performed according to the current PL information and the Clip information among the AV playback functions performed by the Presentation Engine 31.
- These functions (0— (ii) are performed by the HDMV module 33—BD -Executes in response to a function call from J module 35.
- the Playback Control Engine 32 reads out the playlist information instructed to be played back from the BD-ROM or the Local Storage 18 via the Virtual File System 30.
- the Playltem information includes! / And the Clip information described in the Clip_Information_file_name from the BD-ROM or the Local Storage 18 via the Virtual File System 30. read out.
- ( ⁇ ) 1,2,3,4 are for reading playlist information via Virtual File System30 ( ⁇ 1), decrypting Playltem information constituting playlist information (( ⁇ ) 2), via Virtual File System30
- This is a schematic representation of the Clip information reading (( ⁇ ) 3) and decryption of the Clip information (( ⁇ ) 4).
- the TS packet constituting the AVClip is delivered to the Presentation Engine 31 through the Virtual File System 30. In this way, if the TS packets are sequentially passed to Presentation Engine 31, Presentation Engine 31 outputs the TS packets constituting the AVClip to the decoder and displays them on a plane.
- 1, 2, 3, and 4 in the figure indicate reading of TS packets constituting an AVClip (1, 2), delivery of TS packets from Virtual File System 30 to Presentation Engine 31 (3), input of TS packets to a decoder (4) Also, the decoding power is schematically shown as the decoding result output to various planes (5).
- the HDMV module 33 is an execution entity of the HDMV mode. And decodes the navigation command described in the Movie Object, and executes a function call to the Playback Control Engine 32 based on the result of the decoding.
- arrows marked with V2, V3, and ⁇ 4 indicate activate (mobj_id) (2) by module manager 34, decoding of navigation command described in Movie Object (3), and function call to Playback Control Engine 32. (4) is schematically shown.
- the module manager 34 holds the Index.bdmv read from the BD-ROM and performs branch control. This branch control is applied to the dynamic scenario that composes the current title.
- the notification of (V2) is schematically shown as follows: The same applies to the case where a BD-J Object calls JumpTitleAPI (JumpTitle (title-id), and a Terminate event is sent to the BD-J Object that constitutes the current title. Issue, and activate (bobjjd) is issued to the BD-J module 35 to activate the BD-J Object constituting the title corresponding to the titlejd.
- JumpTitleAPI JumpTitle (title-id)
- a Terminate event is sent to the BD-J Object that constitutes the current title.
- Issue, and activate (bobjjd) is issued to the BD-J module 35 to activate the BD-J Object constituting the title corresponding to the titlejd.
- FIG. 35 is a diagram showing the application manager 36.
- the application manager 36 executes the Java (registered trademark) virtual machine 38 so as to start the application having the AutoRun start attribute in the new title, but not in the title before the branch every time the title branch occurs. To instruct. At the same time, the application is executed in the title before branching, but the application is terminated without setting a new title as a live range. These start control and end control are performed with reference to the application management table in the current BD-J Object. If there is a title branch here, activate (bobjjd) is notified from the module manager 34.
- the BD-J Object corresponding to bobjjd is set as the current BD-J Object, and by referring to the application management table in the current BD-J Object, the application to be automatically started and the automatic end described above are terminated. Identify applications that should be.
- 0, 1, 2, and 3 indicate occurrence of Titlejump ( ⁇ ()), notification of activate (bobjjd) (1), reference to application case management table (2), Java (registered trademark) virtual machine 38
- An application start instruction (3) to the user and a series of steps are schematically shown.
- the Java TM virtual machine 38 reads the xlet program from the local memory 26 to the work memory (4, 5).
- the User Event Manager 37 separates the user event received by the user event processing unit 22 into a user event for playback control and a key event.
- Play The user events for control, the playback start (Pl ay), playback stop (Stop), pause (Pause 0n), unpausing (Pause 011), release of the Still function (still off), speed specified Select one of fast forward (Forward Play (speed)), rewind with specified speed (Backward Play (speed)), audio change (Audio Change), sub-picture change (Subtitle Change), and angle change (Angle Change).
- a key event indicates the pressing of any of the Pop-up, MoveUp, MoveDown, MoveRight, MoveLeft, and Numeric keys.
- a function call for causing the Playback Control Engine 32 to execute a playback control function is performed.
- This function call is called U0 (User Operation), and is made by using the UO controller 37a in a detour in the module manager 34 without passing through the HDMV module 33 and the BD-J module 35.
- playback control such as playback start (Play), playback stop (Stop), pause (Pause 0n), and release of pause (Pause Off) can be performed without delay.
- 1, 2, and 3 in the figure schematically depict the playback control user event and the key event by the User Event Manager 37 (1, 2), and the function call to the Playback Control Engine 32 based on the playback control user event (3). Shown in
- the Java (registered trademark) virtual machine 38 loads an xlet program constituting an application into a park memory, decrypts the xlet program, and controls the lower layer according to the decryption result.
- the JMF method is issued to the BD middleware (not shown), the BD playback device replaces it with the corresponding function call, and issues the replaced function call to the Playback Control Engine 32. It is done by things.
- the Event Listner Manager 39 analyzes key events and sorts the events.
- the Default Operation Manager 40 sends a function call corresponding to the Event Listner unregistered event to the Playback Control Engine 32. Run.
- the arrow in the power diagram schematically shows the function call by the Default Operation Manager 40.
- the PLMT processor 41 is a component of the application manager 36.
- the PLMT processor 41 refers to the playlist management table of the BD-J Object specified by the bobjjd. If the playback attribute is in the playlist management table of the BD-J Object,
- the description of the permission controller 42 in this embodiment is omitted.
- FIG. 37 is a diagram showing an internal configuration of the Java (registered trademark) virtual machine 38.
- the Java (registered trademark) virtual machine 38 includes the CPU 24 shown in FIG. 32, a user class loader 52, a method area 53, a work memory 54, a thread 55a, b ' ⁇ ⁇ , and a Java (registered trademark). ) Stack 56a, b ' ⁇ ⁇ ⁇ .
- the user class loader 52 reads the class file in the Java (registered trademark) archive file in the BDJA directory, also reads the local memory 26 and stores it in the method area 53.
- the reading of the class file by the user class loader 52 is performed by the application manager 36 instructing the user class loader 52 to read the file specifying the file path. If the file path indicates the local memory 26, the user class loader 52 reads the class file in the Java archive file constituting the application from the local memory 26 to the work memory 54. Virtual file path If a directory on the File System 30 is indicated, the user class loader 52 reads a class file in a Java (registered trademark) archive file constituting the application from the BD-ROM or the Local Storage 8 to the work memory 54.
- the application start control (3, 4, 5) shown in FIG. 35 is realized by reading a class file by the user class loader 52. If the class file to be read is not in the local memory 26, the user class loader 52 notifies the application manager 36 of the read failure.
- the method area 53 stores the class file read from the local memory 26 by the user class loader 52.
- the work memory 54 is a so-called heap area, and stores instances of various class files.
- An application manager 36 and an event listener manager 39 shown in FIG. 33 are resident applications resident in the work memory 54.
- the work memory 54 stores an instance corresponding to the class file read into the method area 53 in addition to the resident type instance. This instance is the xlet program that makes up the application. By placing a powerful xlet program in the work memory 54, the application becomes executable. 33, 35, and 36, the work memory 54 is described in the upper layer of the Java (registered trademark) virtual machine 38! / ⁇ . This is merely a consideration for describing the application manager 36 and the event listener manager 39 on the work memory 54 in a simple and easy manner.
- the application manager 36 and the Event Listner Manager 39 are executed by the threads 55a, b '... ⁇ as instances.
- the thread 55a, b ' ⁇ ⁇ is the logical execution entity that executes the method stored in the work memory 54, and performs operations using local variables and arguments stored in the operand stack as operands. , And stores the operation result in a local variable or an operand stack.
- Arrows kyl, ky2, and kyn in the figure symbolically indicate method supply from the work memory 54 to the threads 55a, b '... ⁇ . While there is only one physical execution agent CPU, there can be up to 64 logical execution agents in the Java TM virtual machine 38. Within this 64 number, new threads can be created or existing threads can be deleted. The number of running threads can increase or decrease during the operation of the Java TM virtual machine 38.
- the correspondence between the CPU 24 and the threads is a one-to-many relationship.
- the correspondence between the CPU and the threads can be a many-to-many relationship.
- the method execution by the threads 55a, b '... ⁇ is performed by converting the bytecode constituting the method into the native code of the CPU 24 and issuing it to the CPU 24. This native code conversion is out of the scope of the present application, and will not be described.
- the Java (registered trademark) stack 56a, b ' ⁇ ⁇ exists in a one-to-one ratio with the threads 55a, b' ⁇ ⁇ , and the program counter (PC in the figure) and one It has the above frame inside.
- the "program counter” indicates which part of the instance is currently being executed.
- a “frame” is a stack-type area allocated for one call to a method.
- the "operand stack” that stores the arguments for one call and the "local” used by the called method.
- Variable stack local variable in the figure) ".
- the application manager 36 When the module manager 34 outputs an event (activatred [bobj_id]) requesting activation of the BD-J Object of bobjjd, the application manager 36, which is an instance on the work memory 54, outputs the BD-J having the bobjjd. Object is newly made current BD-J Object. Then, the application manager 36 determines the application to be automatically started (0, the application GO to be automatically terminated, by comparing the execution status of the branch source title with the startup attribute of the application in the current BD-J Object.
- the application to be automatically started is determined as follows: aplijd_rel of the application having the AutoPlay attribute in the current BD-J Object, but the application management table of the current BD-J Object. If there is a strong apli jd_rel ⁇ , read the class file belonging to the Java (registered trademark) archive file for the application [ ap lijd_ref] into the method area 53. Instructs the class loader 52 to generate an instance for the class file on the work memory 54. In this way, the application in which the current title is the live range is in an executable state. • By letting ⁇ run, To row.
- the PLMT Prcessor 41 which is a component of the application manager 36, compares the playback state in the branch source title with the playback attribute of the playlist in the current title, and determines the playlist (0, Judge playlist G0.
- the playlist to be automatically played is determined in the non-playback state in the branch source title, and the AutoPlay attribute is set in the current title in the playlist management table. This is done by searching the playlist management table for the presence / absence of the playlist, and if so, executing a playlist playback function call with the PL_id_re3 ⁇ 4 argument of the playlist to be played. , The argument! ⁇ "(1_1
- the frame force stored in the operand stack 3 ⁇ 4ava (registered trademark) stack 56a, b ' ⁇ ⁇ is generated. Then, the thread 55a, b '... ⁇ executes a function call for playlist playback. The execution of this function call causes the Presentation Engine 31 to start playing the playlist.
- the determination of the playlist to be automatically terminated is performed by retrieving whether or not there is a playlist that is in the reproduction state of the branch source title and is not described in the playlist management table of the current title. This is done by performing on the list management table. If so, a function call for stopping the reproduction of the playlist is executed, and the frame corresponding to the function call for reproducing the playlist is deleted from the Java (registered trademark) stack 56a, b ',' n. I do.
- FIG. 38 is a diagram showing four modes of application termination. The first is that the application is terminated by issuing a Terminate event by the application manager 36 because the resource has run out (1). The second is that the Terminate event issued by another application is sent to the application manager 36. (2) The third mode is that the live range described in the application management table has ended, and the process ends with the Terminate event issued by the application manager 36 (3). The fourth mode is that the application is terminated by activating its own termination process (4). Since three of these four aspects are performed by the application manager 36, it can be seen that the application manager 36 has a central role in application operation control. If the application does not terminate even if the Terminate event is issued, the application manager 36 can forcibly terminate the application and give up the used resources.
- One of the features of Application Manager 36 is that it is responsible for releasing resources in a powerful manner.
- FIG. 39 is a diagram showing a processing procedure by the application manager 36.
- the processing procedure in this figure has a main loop that also has Step S1—Step S2—Step S3—Step S4.
- Step S1 is a determination as to whether or not a title jump has been performed.If the title is jumped, the title is switched (step S7). Then, the non-surviving application is terminated at the branch destination Title (step S8).
- the playlist management table of the branch destination Title the reproduction of the PL that is being reproduced at the branch source Title and is not alive at the branch destination Title is stopped (step S9).
- the PLMT Prcessor 41 determines the non-playback state in the branch source Title and the PL having the AutoPlay attribute in the branch destination Title (step S10). If there is, the PLMT Prcessor 41 instructs the Playback Control Engine 32 to play the AutoPlayPL (step Sl). If not, AutoPlayPL will not play.
- a series of procedures consisting of the following steps S12 to S18 realizes activation of an application in which the life cycle is the branch destination Title.
- a start instruction is issued to the AutoRun application (step S14), and if the start is successful (Yes in step S15), the playback image of AutoPlayPL is converted into a quota (1/4) (step S14). It implements the procedure called SI 8).
- step S 15 a loop process consisting of step S 14 -step S 17 is executed.
- the control variable in this loop processing is a restart counter.
- the restart counter is a counter that defines the number of restarts of the application. This restart counter is reset in step S12, and in step S16, it is determined whether or not it is 0. If not 0, the restart counter is decremented in step S17.
- the loop processing including steps S14, S15, S16, and S17, as long as the restart counter is not 0, the start of the AutoRun application is repeated. By vigorous repetition, application launch is guaranteed.
- Step S2 is for determining whether or not the main application is not being executed. If so, the determination in step S5 is performed. Step S5 is the application Is normally terminated. If abnormal termination has occurred, the processing of steps S19 and S20 is executed. If the processing has been normally completed, the process returns to the main loop including Step S1—Step S4 without executing Step S19—Step S20.
- Step S19 is a determination as to whether or not AutoPlayPL is being played back. If so, the Playback Control Engine 32 is instructed to display the AutoPlayPL playback image in full screen (step S20). After that, the routine goes to Step S16. By shifting to step S16, a loop process consisting of step S14—step S17 is executed even at abnormal termination. Thus, the restart of the application is repeated until the number of the restart counter set in step S12 becomes zero.
- Step S4 is for determining whether or not a BD-ROM exists in the BD drive 1. If the BD-ROM does not exist, a termination instruction is issued to all applications (step S4). S6).
- FIG. 40 shows specific examples of the playlist management table and the application management table.
- the first row in FIG. 40 shows the title playback video, and the second row shows the time axis of the title. No.
- the third row shows progress of PL playback
- the fourth row shows application execution.
- application # l is activated at the start of Title, and then becomes active at time tl.
- PlayList # l is started to be reproduced at the same time as the start of Title. Playback of Playlist # l starts at the same time as the start of Title, so as shown on the left side of the first row
- the playback image gjl of the playlist is displayed in full screen in the startup delay from the start of the playback of the Title to the start of the application.
- the composite image gj2 with the PL playback image as the child screen and the application execution image as the main screen is displayed at the time tl.
- the application execution image is a game screen on which a Start button, a continue button, and a POWER indicator are arranged, and is executed by a Java (registered trademark) application executing drawing processing on the Interactive Graphics plane 12.
- Java (registered trademark) application power S To perform such drawing processing, a library for graphics drawing and character drawing is required.
- step S20 the application manager 36 makes the playback image of the PL full screen.
- the time point t3 in the figure indicates the timing of this full screen.
- an image gj3 obtained by the full-screen dagger is shown.
- the reproduction attribute of the playlist management table is set to “
- the second embodiment relates to an improvement for defining a recovery process at the time of error termination at the time of authoring.
- the recording medium according to the present embodiment has an error management table in one BD-J Object.
- (a) is a diagram illustrating an internal configuration of a BD-J Object according to the second embodiment.
- an error management table (Error Maangement Table [bobj_id]) is added to the BD-J Object in addition to the application management table and the playlist management table.
- FIG. 41B shows the internal structure of the error management table.
- the error management table includes Number_of_recovery pieces of recovery information (recoveryO).
- Restart_Application_flag when set to 0, indicates that restart will not be performed upon abnormal termination. When set to an integer value n other than 0, it indicates that restart is repeated n times. This flag is set to 0 as a default value.
- Continuous_Playback_flag when set to 0, indicates that PL playback is not continued at the time of abnormal termination.
- An integer value of 1 indicates that PL playback is continued at abnormal termination, and a setting of 2 indicates that PL playback is continued at full screen at 1x speed at abnormal termination. This flag is set to 0 as a default value.
- the "Select_Title_flag" is set to 0 to indicate that the Title branch is not performed at the time of abnormal termination. When set to an integer value n other than 0, it indicates that jumping to the title specified by the title number n is performed. This flag is set to 0 as a default value.
- Notify_Event_flag when set to 0, indicates that no event is output at abnormal termination. When set to an integer value n other than 0, it indicates that the event with the event number n is to be output. This flag is set to 1 as a default value.
- Reboot_flag when set to 0, indicates that the bootstrap of the playback device is not performed at the time of abnormal termination. An integer value of 1 indicates that bootstrapping is to be performed.
- FIG. 43 (a) is a diagram showing two Titles (title # l, title # 2) in which an error management table is described.
- the application management table of title # l describes applications as AutoRun applications, and the error management table of title # l describes Recovery information to be used when this application # l terminates abnormally.
- the playlist management table of title # l PlayList # l is described as an AutoPlay playlist!
- FIG. 43 (b) shows the progress of application execution and playlist playback based on the application management table and the error management table described as in FIG. 43 (a).
- the processing when the application ends abnormally can be changed for each Title and for each application.
- FIG. 44 is a flowchart showing a processing procedure of the application manager 36 according to the second embodiment.
- Step S1 to Step S4 are the main loop.
- the processing when a title is selected in the main application is as shown in Step S21-Step S27.
- step S21 the PLMT processor 41 determines whether or not the playlist management table exists at the branch destination Title. If it exists, it is in a non-playback state at the branch source Title, but has an AutoPlay attribute at the branch destination Title! /, And the Playback Control Engine 32 starts playback of the PL (step S22). It is determined whether or not the reproduction was successful (step S23). If successful, the processing of step S25—step S28 is performed. If not successful, the flow moves to the flowchart in FIG.
- step S24 the playback of the PL that was in the playback state at the branch source Title is stopped by the Playback Control Engine 32 (step S24), and the processing of step S25—step S28 is performed. .
- Step S25 is for judging whether or not the application management table exists in the branch destination Title. If present, the AutoRun application in the branch target application Yeon is activated (step S26), and it is determined in step S27 whether or not the force has been successfully activated. If successful, the process returns to the loop processing of step S1—step S4. If not successful, the flow shifts to the flowchart in FIG.
- Step S30 is for judging whether or not an error management table exists in the Title to which the abnormally terminated application belongs. If not, the process returns to the loop consisting of steps S1 to S4.
- step S31 it is determined whether the Restart_Application_flag force SO in the error management table is! /. If it is not 0, a loop process consisting of step S40—step S44 is executed. This loop processing
- step S40 If the value n of Restart_Application_flag is set to the restart counter (step S40), and the loop processing of step S41 and step S44 is executed, the result is! /.
- the control variable of this loop processing is a restart counter, and the condition for ending this loop processing is that the restart counter power is used (Yes in step S41) and that the application was successfully started (Yes in step S44). It is. In this loop processing, these steps S41 and S44 are performed. As long as, the restart counter is decremented (step S42), and when the AutoRun application is started, the operation is repeated (step S43). Abnormal termination by such repetition! Thus, the application is restarted. If it is the Restart_Application_flag force, step S32 is executed.
- Step S32 is a step in which it is determined whether the Continuous_Playback_flag force is the force 1 that is SO and the force is 2. If it is 2, the playback image of AutoPlayPL is displayed in full screen (step S33), and the process returns to the main loop including step S1—step S4.
- step S34 the playback image of AutoPlayPL is displayed in the quota (step S34), and the process returns to the main loop including step SI—step S4.
- step S35 If it is 0, the process moves to step S35.
- Step S35 is a judgment as to whether or not the selev itle_flag force of the error management table is! /, And if it is 0, the process proceeds to step S37. If not 0, set the value of selevt_title_flag n The branch destination is set to Title (step S36), and the flow shifts to step S7 in FIG.
- Step S37 is for judging whether or not Notify_Event_flag power of the error management table is not!, And if it is 0, the process proceeds to step S39. If it is not 0, an event n specified from the value n of Notify_Event_flag is generated (step S38), and the flow shifts to the main loop of step S1—step S4 in FIG. Step S39 is the Boot_flag power SO of the error management table! If it is 0, the process proceeds to the main node consisting of steps S1 to S4. If it is not 0, the processing moves to the top of FIG. 44 and the bootstrap of the playback device is executed.
- a program for performing a recovery process when an abnormal termination of an application occurs during reproduction of a title having no error management table may be incorporated in the reproduction apparatus.
- the PL playback in the Java (registered trademark) virtual machine can be specified using the playlist management table in the BD-J Object.
- the present embodiment focuses on PL playback using the JMF method of the application.
- the problem here is the playlist management table. In other words, whether or not to play the PL is described in the playlist management table for each BD-J Object, so it can be played back in one Title, but not in another Title. is there. Even if PL playback is possible, it may be necessary to prohibit playback from certain applications from the viewpoint of copyright protection.
- the Permission Controller 42 and the application manager 36 perform the following processing in order to realize such restrictions on PL playback.
- the permission controller 42 is provided when any application power PL playback is requested. In this case, mutual authentication is performed with the application, and it is determined whether or not the requesting application has the playback right of the PL. If so, the playback request is requested to the Playback Control Engine 32; otherwise, a response event indicating rejection is output to the requesting application.
- the Permission Controller 42 By the permission / rejection determination by the Permission Controller 42, even if an application that assists in distribution by another distribution company requests a PL that assists in distribution by one distribution company, such request can be rejected. Therefore, it is possible to prevent unauthorized quotation of the PL by the application without the right authority.
- the combination of a PL and an application to be permitted and the combination of a PL and an application to be disallowed are specified in a Permission file separately recorded on the BD-ROM, and the determination by the Permission Controller 42 is based on this.
- the details of such a file are not the main subject of the present application, and thus description thereof is omitted.
- FIG. 46 is a flowchart showing a processing procedure of the notification processing by the application manager 36.
- the application while the application is running, it is monitored whether or not the application has issued a request (GetPL) for a notification of a reproducible PL (Step S45). If issued, it is determined whether or not a playlist management table exists in the BD-J Object constituting the Title to which the current playback point belongs (step S46). If there is a description of the PL, the PL described in the playlist management table is notified to the requesting application as a reproducible PL (step S47).
- step S48 If there is no description of the PL, it notifies the issuer application that PL playback is not possible (step S48).
- the above is the processing procedure of the application manager 36 according to the third embodiment.
- the application manager 36 performs processing according to the flowchart of FIG.
- the application manager 36 determines whether or not there is an application that has requested the PL playback (step S51). If any application requests PL playback, whether or not the requesting application has the right to play PL Authentication is performed by the Permission Controller 42 (step S52). If there is a right to play, the playback control engine 32 is instructed to start playback (step S53), and waits for a success response from the playback control engine 32 (step S54).
- Playback Control Engine 32 checks the validity of the playlist information.
- the strong validity check is performed by checking if the playlist information, Clip information, and AVClip exist in the BD-ROM and Local Storage 18 that constitute a valid playlist, and is specified by the clip_Information_file_name in the playlist information.
- Playback Control Engine 32 will return a response indicating false.
- an application having a higher startup priority than the requesting application is playing back the PL, and there is a conflict in resources for realizing the PL playback, the Playback Control Engine 32 returns a response indicating false most.
- step S55 If there is a success response through the above process, an event indicating the success of PL playback is output to the requesting application (step S55).
- step S56 If there is no success response, an event indicating that the PL playback has failed is output to the requesting application (step S56). On the other hand, if the requesting application does not have the right to reproduce the requesting application in step S52, an event indicating that the PL cannot be reproduced is output to the requesting application (step S57).
- the playability of a playlist is different for each Title, and even if there are various applications such as an application with a right to play a playlist and an application that is not, Appropriate playlist playback can be performed as required by the application. Therefore, a variety of content expressions combining application execution and playlist playback can be realized.
- the present embodiment relates to an improvement in which an unboundary application is recorded on a BD-ROM, and at the time of starting the title, the title to be automatically started to be played back is selected by the unboundary application.
- the unbounded application is an application, such as Playback Control Engine 32, which is in a position equivalent to the resident application in the playback device, and is played back from multiple playlist information described in the playlist management table.
- a device that matches the PSR set value on the device side is selected, and the process of notifying is performed in response to a request from Playback Control Engine 32.
- Fig. 48 (a)-(c) are diagrams showing the contents of the selection algorithm incorporated in the unboundary application in a table format. This table shows the range of possible values of the PSR and the PL to be reproduced when the PSR reaches those values.
- Fig. 48 (a) shows the contents of the selection algorithm based on the parental level.
- the parental level is indicated in the PSR (14) in the playback device.
- an integer value indicating the age of the user is set in PSR (14), and the playback device interprets this as a parental level.
- the values that PSR (14) can take are divided into three ranges: under the age of 14, between 14 and under 18, and over 18. PL to be reproduced is associated with each of these ranges. If the unboundary application makes a selection using a powerful selection algorithm, PlayList # l if the PSR setting value is under 14 years old, PlayList # 2 if the PSR value is 14 years old and under 18 years old, PlayList # 3 if 18 years old or older Each will be selected.
- FIG. 48 (b) shows the contents of the selection algorithm based on Languege for Audio.
- “Languege for Audio” is shown in PSR (16) in the playback device.
- an integer value is set in the PSR (16), and the playback device sets this to the language setting for audio playback.
- the values that PSR (16) can take are divided into three ranges: values indicating English, values indicating Japanese, and other values. The PL to be reproduced is associated with each of these ranges. If the unboundary application makes a selection using a strong algorithm, PlayList # l if the PSR (16) setting value indicates English, PlayList # 2 if the setting value indicates Japanese, PlayList if the value is other than English or Japanese # 3 is selected respectively.
- Fig. 48 (c) shows the content of the selection algorithm based on the Player Configuration for Video.
- the Player Configuration for Video is indicated in the PSR (14) in the playback device.
- an integer value is set in the PSR (14), and the playback device interprets this as an environment setting for video playback.
- the values that the PSR (14) can take are divided into three ranges: resolution 525 X 600 TVsystem LetterBox, resolution 525 X 600 TVsystem, and 1920 X 1080 TVsystem.
- the PL to be reproduced is associated with each of these ranges. If the unboundary application makes a selection according to the powerful selection algorithm, the PSR (14) setting will be
- the selection algorithm shown in FIGS. 48 (a)-(c) can be created by describing the conditional branches shown in these figures in a computer description language.
- the application manager 36 determines whether or not AutoPlayPL exists in the playlist management table. If there is no AutoPlayPL, the playlist management table is delivered to the Playback Control Engine 32, and a request is made to the Playback Control Engine 32 to automatically play any of the PLs described in the playlist management table.
- the Playback Control Engine 32 Upon receiving the delivery of the playlist management table, the Playback Control Engine 32 requests the boundary application to perform PL selection. According to this request If a list of PLs that can also be played back by the unbounded application is notified, of the PLs listed in the PL list, those that exist in the playlist management table passed from Playltem are determined. If any of the PLs selected by the unboundary application is listed in the playlist management table, the playback of that is automatically started.
- FIG. 49 is a diagram schematically illustrating a process of causing the title unboundary application to select a PL.
- the left side of the figure shows the layer configuration of software in the playback device, and the right side of the figure shows the recorded contents of the BD-ROM.
- ⁇ 1,2,3,4 in the figure are notifications from the application manager 36 when a playlist management table without AutoPlay is found ( ⁇ 1), and a query for a playable PL by Playback Control Engine 32 (( ⁇ 2), PSR setting value acquisition by title boundary application (( ⁇ ) 3), notification of playable PL from title unboundary application to Playback Control Engine 32 (( ⁇ ) 4) I'm drawing.
- the title unboundary application is described on the BD-ROM, but this is only a consideration for describing the title unboundary application in an easily understandable manner. Since the title unboundary application is a Java (registered trademark) application, it is a realistic description that it is executed by the thread 55 as an instance in the work memory 54 in the Java (registered trademark) virtual machine 38.
- the values that the PSR can take are associated with the playlist, but if the set value of the PSR in the playback device is an unexpected value, the playback device A playlist to be played back on the device is specified in advance.
- the title unboundary application has a selection algorithm when selecting a PL to be reproduced according to the set value of the PSR.
- the title unboundary application according to the present embodiment has In the case where there is a multi-angle section in one PL, the process of selecting one of a plurality of angles in the multi-angle section is performed by a title unboundary application.
- the title unboundary application according to the present embodiment associates a plurality of ranges of values that the PSR can take with angles to be reproduced for each of the ranges.
- the Playback Control Engine 32 inquires of the title unboundary application which angle to play.
- the title unboundary application obtains the current PSR setting, executes the selection algorithm, and selects an angle according to the obtained setting. The result of the selection is notified to the Playback Control Engine 32, and the playback of the angle is performed by the Playback Control Engine 32.
- the algorithm for selecting which angle is selected when the PSR is a given value can be prescribed by the authoring person, so that various applications using the angle can be used. Authoring personnel can produce.
- the Playback Control Engine 32 executes a processing procedure based on the PL information. If the PL has a playback time of 2 hours, the process described above will continue during these 2 hours.
- the problem here is the gap between the time when the Java TM virtual machine 38 returns a success response and the time when the Playback Control Engine 32 actually finishes processing. Since the Java TM virtual machine 38 is an event-driven processing subject, it returns a response indicating success or failure of playback immediately after the call. However, the actual processing by the Playback Control Engine 32 ends after 2 hours.
- the Playback Control Engine 32 Since the Playback Control Engine 32 operates standalone with the application, the application manager 36 cannot correctly interpret the end point of the PL playback. Therefore, in this embodiment, whether or not the application is terminated, as long as the JMF player instance is in the work memory, that is, while the BD-J module 35 has control of the Presentation Engine 31, the Playback Control Engine 32 Wait for Notify event from. If there is a Notify event, the module interprets that the title is over and notifies the module manager 34 to branch to the next title. By doing so, the time when the Playback Control Engine 32 ends the PL playback can be set as the end of the title.
- FIG. 50 is a flowchart showing a PL playback procedure by the Playback Control Engine 32.
- This playback procedure mainly includes control on the Presentation Engine 31 (step S106) and control on the BD-ROM drive 1 or the Local Storage 18 (step SI08).
- the Playltem to be processed is referred to as Playltemfe.
- the current PL information (.mpls) is read (step S101), and then the processing of step S102—step S110 is executed.
- Step S102—Step S110 constitutes a loop processing in which the processing of Step S103—Step S110 is repeated for each PI information constituting the current PL information until Step S109 becomes Yes.
- the Playltem to be processed is
- This Playltemfe is initialized by being set to the first Playltem of the current PL (step S102).
- the termination requirement of the above-mentioned loop processing is that this Playltemfe becomes the last Playltem of the current PL (step S109), and if not the last Playltem, the next Playltem in the current PL is set to Playltemfe ( Step S110).
- Step S103 Step S110 repeatedly executed in the loop processing includes: The Clip information specified by the Playltemfe Clip_information_file_name is read into the scenario memory 25 (step S103), and the Play_temfe In_time is converted into an I picture address u using the current Clip information EPmap (step S104). The OuUime of Playltemfe is converted to an I-picture address v using the EP_map of the current Clip information (step S105), and the next I-picture following the address V obtained by these conversions is obtained. The immediately preceding address is set to address w (step S107), and reading of TS packets from I picture address u to address w is performed using BD-ROM drive 1 or Local Storage 18 using the calculated address w. (Step SI 08).
- the Presentation Engine 31 is instructed to output from mark_time_stamp of the current PLMark to OuUime of Playltemfe (step S106).
- Step S 105 Step S 108 above, the portion indicated by the Playltemfe in the AVClip is reproduced.
- Playltemfe is the last PI of the current PL (step S109).
- step S110 If Playltemfe is not the last PI of the current PL, the next Playltem in the current PL is set to Playltemfe (step S110), and the process returns to step S103. By repeating the above steps S103 and S110, the PIs constituting the PL are sequentially reproduced.
- FIG. 51 is a flowchart showing the angle switching procedure and the SkipBack and SkipNext procedures. This flowchart is performed in parallel with the processing procedure of FIG. 50. Steps SI11 to S112 are repeated when a loop process with a large force is repeated! Step S111 in this loop is to determine whether or not the API force for requesting angle switching has been called from the Java (registered trademark) virtual machine 38. If the angle switching API is called, the current Clip information is switched. Perform an operation.
- Step S115 in Fig. 51 is a determination step, which determines whether or not is-multi-angles of Playltemfe is on. is_multi_angles is a flag indicating whether or not Playltemfe supports multi-angles. If step S115 is No, proceed to step S113. Step SI15 If SYes, step S116 —Perform step S 119 To do.
- Step S116 substitutes the changed angle number for the variable y (step S116), reads out the Clip information specified by the y-th Clip_information_file_name in Playltemfe to the scenario memory 21 (step S117), The PTM is converted to an I-picture address u using the EP_map of the current Clip information (step S118), and the OuUime of Playltemfe is converted to an I-picture address v using the EP_map of the current Clip information (step S119). That is.
- the process of FIG. 50 which is being executed simultaneously, is stopped, and the process proceeds to step S106. Since the TS packet is read from another AVClip by shifting to step S106, the video content is switched.
- step S112 in the loop of FIG. 51 is for determining whether or not the API force Uava (registered trademark) virtual machine 38, which means SkipBack / SkipNext, has been called.
- the processing procedure of the flowchart is executed.
- Figure 52 shows
- step S121 the current Mark information is obtained by converting the current PI number indicated by the PSR and the current PTM.
- step S122 it is determined whether the pressed key is the SkipNext key or the SkipBack key. If the key is the SkipNext key, the flow advances to step S123 to set the direction flag to +1. If it is the SkipBack key, go to step S124! /, And set the direction flag to -1.
- step S125 a number obtained by adding the value of the direction flag to the number of the current PLMark is set as the number of the current PLMark. If it is the SkipNext key, the direction flag is set to +1! /, So the current PLMark is incremented. If it is the SkipBack key, the direction flag is set to -1, so the current PLMark will be decremented.
- step S126 the PI described in the o_PlayItem_Id of the current PLMark!
- step S1208 the EP_map of the current Clip information is To convert the mark_time_stamp of the current PLMark into an I-picture address u.
- step S129 the OuUime of Playltemfe is converted to an I-picture address V using the EP_map of the current Clip information.
- step S130 the output from the mark_time_stamp of the current PLMark to the Out_time of Playltemfe is instructed to the Presentation Engine 31, and the concurrently executed processing in FIG. 50 is stopped. Then, the flow proceeds to step S107 in FIG.
- the I picture addresses u and v are changed, and the reproduction of another part is ordered, and then the process proceeds to step S107.As a result, the TS packet is also read with another AVClip force, and the video content is switched. Is realized.
- FIG. 53 is a flowchart showing details of the processing procedure by the Presentation Engine 31.
- a loop process including step S132—step S137 is executed.
- step S132 step S137
- This loop processing repeats the reproduction output of the picture and audio corresponding to the current PTM and the update of the current PTM.
- Step S136 in this loop processing defines the requirements for terminating the loop processing. In other words, step S136 uses the fact that the current PTM is Out_time of PI # x as a requirement for terminating the loop processing.
- Step S133 is to judge whether the fast forward API or the fast reverse API has been called from the Java (registered trademark) virtual machine 38. If called, it is determined in step S138 whether fast-forward or fast-reverse, and if fast-forward, the PTS of the next I-picture is set to the current PTM (step S139). By setting the current PTM to the PTS of the next I-picture in this way, AVClip can be played every second. As a result, the AVClip is reproduced in the forward direction at a double speed or the like. If the rewind is fast, it is determined whether the current PTM has reached OuUime of Playltemfe (step S140). If you do not reach!
- Step S141 The PTS of the immediately preceding I picture is set as the current PTM (step S141).
- the AVClip can be played back one second at a time in the backward direction.
- the AVClip is reproduced in the reverse direction at a double speed or the like.
- the processing procedures for executing the fast forward and rewind are various. It is to be noted that the description here is only an example.
- Step S134 is for determining whether or not the menu call API has been called. If a call has been made, the current playback process is suspended (step S142), and the menu program for menu processing is executed. Execute (step S143). When a menu menu call is made by the above processing, the processing for menu display is executed after the reproduction processing is interrupted.
- Step S135 is a determination as to whether or not SubPlayItem # y specifying Playltemfe exists by sync_PlayItemjd, and if so, the flow moves to the flowchart of Fig. 54.
- FIG. 54 is a flowchart showing the playback procedure of SubPlayltem. In this flowchart, first, in step S146, the current PTM is
- step S153 the playback control engine 32 is notified to perform a playback process based on SubPlayItem # y.
- step S136 When step S136 is determined to be Yes, steps S144 and S145 are executed.
- step S144 it is determined whether the Notify End Of File event has been output from the Virtual File System 30 and the Notify End Of Decoding event has been output from the decoder. If output, output a Notify End Of Stream event to Playback Control Engine 32.
- Steps S147 to S152 in Fig. 54 are flowcharts showing a reproduction process based on SubPlayItem # y.
- step S147 the Clip information specified by Clip_information_file_name of SubPlayItem # y is read.
- step S148 using the EP_map of the current Clip information,
- step S149 Convert In_time of SubPlayItem # y to address ⁇ .
- step S149 the OuUime of SubPlayItem # y is converted to an address j8 using the EP_map of the current Clip information.
- a step S150 instructs the decoder to output from In_time of SubPlayItem # y to OuUime of SubPlayItem # y.
- the I-picture next to address j8 obtained by these conversions is obtained, the immediately preceding I-picture is set to address ⁇ (step S151), and SubClipte is calculated using address ⁇ calculated in this way. If you instruct the BD-ROM drive 1 or the Local Storage 18 to read the TS bucket up to the address ⁇ and the address ⁇ at! Step SI 52).
- Step S113 is a judgment as to whether or not the reproduction control by the Presentation Engine 31 has been completed. As long as the processing of the flowchart of FIG. 53 is performed on the last Playltemfe, the step S113 is No. Only after the processing of the flowchart in FIG. 53 is completed is Yes in step S113, and the routine goes to step S114.
- Step S114 is the output of the Notify event to the Java (registered trademark) virtual machine 38. By this output, the Java (registered trademark) virtual machine 38 can know the lapse of the reproduction time of 2 hours.
- the application manager 36 can recognize the point in time at which the playback time of 2 hours has elapsed.
- the virtual machine 38 can be executed.
- the embodiment of the present invention can also be carried out in the form of an implementation action in which (A), (B), (C), and (D) are changed.
- Each invention according to the claims of the present application is described as an expanded description or a generalized description of the above-described plurality of embodiments and their modifications. The degree of extension or generalization is based on the state of the art in the technical field of the present invention at the time of filing.
- the power of implementing the optical disc according to the present invention as a BD-ROM is characterized by a recorded dynamic scenario and an Index Table. -Does not depend on the physical properties of the ROM. Any recording medium that can record the dynamic scenario and the Index Table may be used. For example,
- It may be an optical disk such as DVD-ROM, DVD-RAM, DVD-RW, DVD-R, DVD + RW, DVD + R, CD-R, or CD-RW, or a magneto-optical disk such as PD or MO.
- a semiconductor memory card such as a compact flash (registered trademark) card, a smart media, a memory stick, a multimedia card, and a PCM-CIA card may be used.
- the playback device that decodes the AVClip recorded on the BD-ROM and outputs it to the TV is now a BD-ROM drive only.
- the playback device and the TV can be incorporated in a home network connected by IEEE1394.
- the playback device in the embodiment may be a playback device integrated with a force display which is a type used by being connected to a television.
- the playback device of each embodiment only the portion that forms an essential part of the processing may be used as the playback device. Since these playback devices are all the inventions described in the specification of the present application, regardless of these aspects, the playback devices are manufactured based on the internal configuration of the playback device described in each embodiment.
- the act is an act of practicing the invention described in the specification of the present application.
- the transfer of the playback device shown in each embodiment at no charge (free for sale and sale for no charge), lending, and importing are also implementations of the present invention.
- the act of inviting the general user to transfer or lend them through in-store display, solicitation of catalogs, and distribution of pamphlets is also an act of implementing the present reproducing apparatus.
- the implementation of a single program includes the act of producing these programs (1), the act of transferring the program for a fee or free of charge (2), the act of lending (3), and the act of importing (4) (5), or offer to transfer or lend the program to general users by exhibiting it in stores, soliciting catalogs, and distributing pamphlets (6).
- the extension header is called TP_extra_header, and has a 4-byte data length of "Arribval-Time-Stamp” and "u copy-permission-indicator”.
- TS packets with TP_extra_header (hereinafter abbreviated as EX-attached TS packets) are grouped into groups of 32 and written to three sectors.
- 32 TS packets with EX stored in 3 sectors are called "Aligned Unit"
- the playback device 200 When used in a home network connected via IEEE1394, the playback device 200 transmits Aligned Units by the following transmission processing. That is, the sender device removes TP_extra_header from each of the 32 EX-attached TS packets included in the Aligned Unit, and encrypts and outputs the TS packet itself based on the DTCP standard. When outputting TS packets, isochronous packets are inserted anywhere between TS packets. This insertion point is a position based on the time indicated in Arribval_Time_Stamp of TP_extra_header. With the output of the TS packet, the playback device 200 outputs a DTCP_Descriptor.
- DTCP_Descriptor indicates a copy permission / prohibition setting in TP_extra_header. If the DTCP_Descriptor is described so as to indicate "copy prohibited", the TS packet will not be recorded on other devices when used in a home network connected via IEEE1394.
- the digital stream recorded on the recording medium is an AVClip, but may be a VOB (Video Object) of the DVD-Video standard or the DVD-Video Recording standard.
- VOB is a program stream compliant with ISO / IEC13818-1 standard obtained by multiplexing video stream and audio stream.
- the video stream in AVClip may be in the MPEG4 or WMV format.
- the audio stream is compatible with Linear-PCM, Dolby-AC3, MP3, MPEG-AAC, Dts,
- WMA Windows (registered trademark) media audio
- the video work in each embodiment may be obtained by encoding an analog video signal broadcast by analog broadcasting.
- Transformer broadcast by digital broadcasting The port data may also be configured stream data.
- the analog z-digital video signal recorded on the video tape may be encoded with the analog z-digital video signal recorded on the video tape.
- the content may be obtained by encoding an analog / digital video signal directly captured from a video camera camera.
- Other digital works distributed by the distribution server are also acceptable.
- the BD-J module 35 may be a Java (registered trademark) platform embedded in a device for receiving satellite broadcasting. If the BD-J module 35 is such a Java (registered trademark) platform, the playback device according to the present invention can also perform processing as an MHP STB.
- a Java (registered trademark) platform embedded in a device for processing control of a mobile phone may be used. If the BD-J module 35 is such a Java (registered trademark) platform, the playback device according to the present invention also serves as a mobile phone.
- the HDMV mode may be arranged on the BD-J mode!
- the interpretation of the dynamic scenario in the HDMV mode and the execution of the control procedure based on the dynamic scenario have a light load on the playback device, so that there is no problem even if the HDMV mode is executed on the BD-J mode. It is.
- only one mode is required to guarantee operation.
- the reproduction process may be executed only in the BD-J mode. As described in the fifth embodiment, even in the BD-J mode, the playback control synchronized with the PL playback can be performed. Therefore, it is not necessary to provide the HDMV mode.
- a navigation command may be provided in the interactive graphics stream to be multiplexed in the AVClip, and a certain PL may implement branching to another PL.
- the title unboundary application is defined as a title that has all of the plurality of titles belonging to one BD-ROM as a live range.
- a title unboundary application in which all of the titles belonging to a plurality of BD-ROMs have a live range may be specified.
- the reasons for limiting the number of concurrently executing applications to four or less are as follows. Many BD-ROM playback devices have a tuner function for digital broadcasting. Applications that realize the tuner function often reside (resident) in S memory. The number of applications is limited to four or less to allow room for powerful resident applications to run. It is desirable to break down the four applications into one, a title unboundary application, a second as a title boundary application, and a third as a chapter boundary application.
- the error management table is defined to execute one recovery process when one application ends abnormally. However, when one application ends abnormally, a plurality of recovery processes may be executed. That is, when an application terminates abnormally, the playback device may continue the playback of the playlist, restart the application, and output the event.
- the error management table may be configured so that one recovery process is defined for one title instead of for each application.
- AVClip can multiplex an interactive graphics stream for displaying a menu and accepting interactive operations, an AVClip that displays a top menu and accepts interactive operations, You can create a top menu title simply by describing the navigation command that will be played back in MovieObject! /.
- the directory structure and the data structure in the file in each embodiment are merely examples, and the management information which is a feature of the present invention does not depend on the directory structure and the data structure in the file.
- a BD-J Object which is an operation scenario in the BD-J mode, is placed in the BDJA directory as a file (ZZZZZ.BD-J) with the identifier bobjjd and the identifier BD-J, and BD-J Object.bdmv In BD-J Object [n] (), only the identifier bobjjd should be stored!
- the recording medium and the playback device according to the present invention may be used for personal use, such as in a home theater system.
- the present invention is The structure is disclosed and it is clear that mass production will be based on this internal structure, so that it can be used industrially in terms of quality. From this, the recording medium and the reproducing apparatus according to the present invention have industrial applicability.
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Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
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EP04818238A EP1691367B1 (en) | 2003-11-10 | 2004-11-09 | Recording medium, reproduction device, program, reproduction method, and system integrated circuit |
KR1020127011482A KR101268335B1 (ko) | 2003-11-10 | 2004-11-09 | 기록매체, 재생장치, 재생방법 |
DE602004012598T DE602004012598D1 (de) | 2003-11-10 | 2004-11-09 | Aufzeichnungsmedium, wiedergabeeinrichtung, programm, wiedergabeverfahren und systemintegrierte schaltung |
JP2005515351A JP3851341B2 (ja) | 2003-11-10 | 2004-11-09 | 記録媒体、再生装置、プログラム、再生方法、システム集積回路 |
US10/549,318 US7565062B2 (en) | 2003-11-10 | 2004-11-09 | Recording medium, reproduction device, program, reproduction method, and system integrated circuit |
CA2518767A CA2518767C (en) | 2003-11-10 | 2004-11-09 | Recording medium, playback apparatus, program, playback method, system integrated circuit |
KR1020117013248A KR101176904B1 (ko) | 2003-11-10 | 2004-11-09 | 기록매체, 재생장치, 재생방법 |
KR1020057018474A KR101121382B1 (ko) | 2003-11-10 | 2004-11-09 | 기록매체, 재생장치, 재생방법 |
MXPA05010367A MXPA05010367A (es) | 2003-11-10 | 2004-11-09 | Medio de grabacion, dispositivo de reproduccion, programa, metodo de reproduccion y circuito integrado de sistema. |
CN200480008998.4A CN1768387B (zh) | 2003-11-10 | 2004-11-09 | 记录方法,播放装置及播放方法 |
BRPI0409003-9A BRPI0409003A (pt) | 2003-11-10 | 2004-11-09 | meio de gravação, aparelho de reprodução, programa, método de reprodução, circuito integrado do sistema |
KR1020117029789A KR101204653B1 (ko) | 2003-11-10 | 2004-11-09 | 기록매체, 재생장치, 재생방법 |
US12/241,517 US7627233B2 (en) | 2003-11-10 | 2008-09-30 | Integrated circuit for use in a playback apparatus |
US12/581,193 US8406611B2 (en) | 2003-11-10 | 2009-10-19 | Integrated circuit for use in a playback apparatus |
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