CN101587735B - Playback apparatus for performing application-synchronized playback - Google Patents

Abstract

A playback apparatus for playing a digital stream in conjunction with an application includes a package management unit operable to generate package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, and a selection unit operable to detect a plurality of playable titles from the package information, and select one of the detected titles as a current title. After the application requests the package management unit to update the merge management information, by specifying new merge management information, the package management unit changes a file referenced from the newly specified merge management information to read-only before updating the package information, and at a point at which digital stream playback stops due to a current title change by the selection unit, the package management unit generates new package information by combining files recorded on the first and second recording media, in accordance with the newly specified merge management information.

Description

The replay device that is used for the executive utility synchronized playback

The application is that the application number submitted on July 21st, 2005 is 200580024823.7, name is called dividing an application of " replay device that is used for the executive utility synchronized playback ".

Technical field

The invention belongs to the technical field of digital stream and application-synchronized playback.

Background technology

Application-synchronized playback is to be used for playing a technology of digital stream when replay device or the similar device that is used for displaying video move Java (registered trademark) application program, and belongs to the technical fields that will attract a large amount of concerns in the consumer goods of making from now on.Being used for synchronous application program and digital stream is that unit is associated with each other with the playback that is called as " title ".Traditional replay device is described below.Traditional replay device is made of virtual file system unit, module management, playback unit and platform unit.

The virtual file system unit management is by a plurality of recording mediums of replay device visit, optical recording media (DVD-ROM for example for example, BD-ROM, the latter is described in the back as an example) and magnetic recording media (for example hard disk), and generate the package informatin that integrally shows these recording medium recorded contents.

Every package informatin is called as virtual package, and is submitted in the playback/execution of its data stream on being recorded in these recording mediums and application program (abbreviating " application program " hereinafter as), just as their physical records in single bag.

Module management selects in a plurality of titles one as current title.

Playback unit is play the digital stream (promptly being recorded on light or the magnetic recording media) that constitutes current title from the digital stream shown in the package informatin.

The platform unit moves the application program (promptly being recorded on light or the magnetic recording media) that constitutes current title from the application program shown in the package informatin.

According to above structure, be recorded in the different recording medium for example the digital stream on BD-ROM and the hard disk and application program can be used as single (virtual) bag and treat, and replay device can be that unit realizes the control of resetting with the title.

Title in the above structure not only is used to be recorded in the digital stream on the BD-ROM that is used to reset but also is used to be recorded in digital stream on the hard disk.Because hard disk is rewritable recording medium, so the element of title may be replaced by replayed portion ground, for example when using the newly-generated package informatin of digital stream of collection newly.

Think that to a great extent the situation that such replacement causes is difficult to recover for example in the video breaks of playback duration by the abnormal operation generation of playback unit.

If the playback unit in the replay device sequentially inspection example can be expected and replace playback object by replayed portion ground as the consistance of the key element of the data stream that is used to reset and playback control information.Yet, suppose the information type inequality that needs are checked, this has caused very big burden to playback unit.

Stable operation for absolute assurance equipment it is desirable to restarting equipment self when changing in the recorded content on hard disk, as when your install software.Yet, suppose restarting equipment several seconds processing times of cost anywhere to a few minutes, this is not the thing that the user can easily bear.

Summary of the invention

Target of the present invention provides a kind of replay device, even described replay device also can be realized stable the playback when changing in playback object.

In order to overcome the above problems, the present invention is a kind of replay device of playing digital stream in conjunction with application program, it comprises assures the reason unit, be used for generating package informatin by the described reason unit of assuring of the file of merge record on first recording medium and second recording medium according to merging management information, and selected cell, but be used to detect a plurality of play title, and select in the detected title one as current title from package informatin.After application program merges management information by the renewal of the new merging of appointment management information request package administrative unit, assuring the reason unit before update package information will become read-only from the file that new appointment merging management information is quoted, and when the digital stream playback was stopped by the selected cell change owing to current title, the merging management information of assuring the new appointment of reason unit basis generated new package informatin by the file that combination is recorded on first and second recording mediums.

Owing to have above structure, the present invention has guaranteed to upgrade under the situation that merges management information by specifying the new management information request package administrative unit that merges in application program, the content of the file of quoting from the merging management information of new appointment changes up to current title from the time that proposes update request and all is not changed, and this is to be set to read-only because assured the file of quoting from the merging management information of new appointment the reason unit before update package information.And, by update package information when the digital stream playback is stopped owing to current title changes, even the digital stream or the application program that for example are used to reset/carry out are replaced the abnormal operation that also can not cause replay device owing to upgrading.

Thereby, since can by merge record dynamically on the first and second two recording mediums file and guarantee that simultaneously the stable operation of replay device realizes the control of resetting, and has enlarged the expression width of cinematographic work.

Here, if assure the right that information indication application program in the permission mark (tag) that the reason unit can be configured to the application program that request upgrades has been assigned with update package information, update package information then, if this information indication is not assigned with the right of renewal, then refuses update request and execute exception and handle.

This structure can stop the renewal of the package informatin of unauthorized application requests.

Description of drawings

Fig. 1 is a system diagram;

Fig. 2 has shown the inner structure of BD-ROM 100;

Fig. 3 has systematically shown the file of how to construct expansion " m2ts " by name;

Fig. 4 has shown the structure of PL information;

Fig. 5 has shown the relation between AVClip and the PL;

Fig. 6 has shown the appointment in batches of using four Clip_Information_file_names;

Fig. 7 has shown the inner structure of PLMark information;

Fig. 8 has shown the chapters and sections definition of using PLMarks;

Fig. 9 has shown the inner structure of Subpath information;

Figure 10 has shown that the playback on synchronous appointment and the SubClip time shaft defines at interval;

Figure 11 A has shown the routine data that is comprised in the files;

Figure 11 B has shown the inner structure of class file;

Figure 12 has shown the inner structure of BD-J object;

Figure 13 has shown the inner structure of INDEX.BDMV;

Figure 14 has shown the bibliographic structure in the local storage;

Figure 15 has shown the type by the playlist playback time shaft that is stored in the PL information definition in the local storage;

Figure 16 A has shown the AVClip that is stored on the BD-ROM and the java application and the AVClip that are stored in the local storage;

Figure 16 B has shown java application and the AVClip#1-#4 that treats as single title;

Figure 17 has shown the typical internal structure that merges management information file;

Figure 18 has shown the hardware configuration of replay device;

Figure 19 has described by hardware and has been stored in the element with the layer structure rearrangement that the software on the instruction ROM 21 is formed;

Figure 20 has shown the inner structure of Java Virtual Machine 30;

Figure 21 has shown the state-transition that is changed generation by title;

Figure 22 has shown by virtual file system unit 38 and has typically produced virtual package information;

Figure 23 A has shown the time shaft of whole CD;

Figure 23 B has shown the structure of the time shaft of whole CD;

Figure 24 is the process flow diagram by the download process of java application execution;

Figure 25 is the process flow diagram that upgrades " preparation " process;

Figure 26 is the process flow diagram of virtual package " renewal " process;

Figure 27 is the process flow diagram by the processing of module management execution;

Figure 28 is the process flow diagram of PL playback procedure;

Figure 29 has shown during title changes how to upgrade virtual package information;

Figure 30 has shown the java application that current merging management information file is sent to server;

Figure 31 has shown downloaded content file, has newly merged the java application of management information file and new signing messages file;

Figure 32 has shown the java application that proposes update request to virtual file system unit 38;

Figure 33 has shown merging management and the replacement of signing messages file and the mapping of content file;

Figure 34 A suspends the process flow diagram of the playback time of current title by the processing of playback Control Engine execution after title calls;

Figure 34 B is the process flow diagram of the processing carried out by the playback Control Engine when continuing the playback original header after the playback of working as the title that is called finishes;

Figure 35 has shown the merging management information file in the embodiment 3;

Figure 36 has shown the java application about embodiment 3, and this application requests is upgraded virtual package;

Figure 37 has shown the typical additive contents list that is shown to the user by the resident applications of using the merging management information file;

Figure 38 be about embodiment 3 from the loading of BD-ROM process flow diagram up to the treatment scheme of resetting;

Figure 39 has shown appointed significant interval when the request virtual package is upgraded;

Figure 40 is that the loading from BD-ROM (or replay device restart) about embodiment 4 is up to the process flow diagram of the treatment scheme of resetting;

Figure 41 has shown the permission request file that is used to screen the virtual package update request;

Figure 42 has shown the restrict access of forcing on the catalogue of the local storage that is used for merging;

Figure 43 has shown that its life cycle is limited to the java application of single title and the java application that its life cycle continues a plurality of titles;

Figure 44 has shown do not binding the processing of carrying out on the application program of title (title-unbound) during title changes when the renewal virtual package;

Figure 45 is the process flow diagram of title change process of considering not bind the application program of title; With

Figure 46 is the process flow diagram that the virtual package after the INDEX.BDMV file change is upgraded.

Embodiment

Embodiment 1

The embodiment of recording medium related to the present invention is described below.At first, describe about a kind of type of service in the way of realization of replay device of the present invention.Fig. 1 has shown the typical type of service about replay device of the present invention.In Fig. 1, be replay device 200 about replay device of the present invention.Replay device 200 is used for providing cinematographic work at household audio and video system, and described household audio and video system is for example by replay device 200, and telepilot 300 and TV 400 are formed.

About the typical type of service of replay device of the present invention as mentioned above.Then describe and be used for the recording medium reset by about replay device of the present invention.In the example that provides, be BD-ROM 100 (optical recording media) by the recording medium of playing about replay device of the present invention.Fig. 2 has shown the inner structure of BD-ROM 100.

The 4th level in Fig. 2 has shown BD-ROM 100, and has shown the track on the BD-ROM in the 3rd level.The track of describing among Fig. 2 is produced by the track spiral from the inner periphery of BD-ROM to excircle, and it is drawn for the side.This track is made up of Lead-In Area, volume district and leading-out zone.Volume district among Fig. 2 has the layer structure of being made up of Physical layer, file system layer and application layer.The application form that uses bibliographic structure to express BD-ROM has provided first level among Fig. 2.The BDMV catalogue is placed under the root directory of first level among the BD-ROM.

And there are five sub-directories in the INDEX.BDMV file disposal under the BDMV catalogue in the BDMV catalogue, they are called as the PLAYLIST catalogue, CLIPINF catalogue, STREAM catalogue, BDJA catalogue and BDBJ catalogue.

The STREAM directory stores forms the file of main digital stream, and extension name " m2ts " is distributed to this document (00001.m2ts).

The file (00001.mpls) that in the PLAYLIST catalogue, has expansion " mpls " by name.

The file (00001.clpi) that in the CLIPINF catalogue, has expansion " clpi " by name.

The file (00001.jar) that in the BDJA catalogue, has expansion " jar " by name.

The file (00001.bdbj) that in the BDBJ catalogue, has expansion " bdbj " by name.

These files are then described.

AVClip

The file (00001.m2ts) of expansion " m2ts " by name is at first described.Fig. 3 has systematically shown the file of how to construct expansion " m2ts " by name.This document storage AVClip.Constitute AVClip (intermediate level) by multiplexed TS bag, by will be by a plurality of frame of video (picture pj1, pj2, pj3) video flowing of Zu Chenging and the audio stream (top first level) be made up of a plurality of audio frames at first convert PES bag (top second level) to, convert TS bag (top the 3rd level) then to, and in an identical manner subtitle graphic is shown that (P figure or PG) stream (following first level) and dialogue interactive graphics (IG) (I figure or IG) stream (following first level) convert TS bag (following the 3rd level) to and produces described TS bag.

Except the AVClip by multiplexed acquisition as shown in Figure 3, existing is not AVClip by multiplexed generation yet.These are called as SubClip, and comprise the AVClip that constitutes audio stream, graphical stream or text subtitle stream (TextST stream) etc.

Clip information

The file (00001.clpi) of expansion " clpi " by name is a clip information corresponding with AVClip.Clip information is a management information, and it comprises the EP_map of a position that shows GOP and such as the information of coded format, frame frequency, bit rate and the resolution etc. of the stream among the AVClip.

PL information

File (00001.mpls) storage playlist (PL) information of expansion " mpls " by name.PL information is by defining playlist with reference to AVClip.Fig. 4 has shown the structure of PL information, and shown in the left side of figure, PL information is by MainPath information, and PLMark information and SubPath information constitute.

MainPath information " MainPath () " is made up of the indicated playitems playitem information of arrow mpl " PlayItem () ".Playitems playitem is the playback interval that defines by assigned I n_time and Out_time on one or more AVClip time shafts.Many placement definition of playing project information are by a plurality of tabulations of resetting and forming at interval.Arrow mp2 among Fig. 4 has shown the feature of the inner structure of playitems playitem information.As shown in Figure 4, playitems playitem information is by In_time, and the Clip_Information_file_name of Out_time and the corresponding AVClip of demonstration forms.Fig. 5 has shown the relation between AVClip and the PL.First level shows the time shaft of AVClip, and second level shows the time shaft of PL.PL information comprises that three are play project information (PlayItem#1-#3), wherein three In_times and the Out_times definition of interval by PlayItem#1, #2 and #3 of resetting.Definition is different from the time shaft of AVClip when these intervals of resetting are arranged with line.This is at the PL time shaft shown in second level.Thereby allow to define the time shaft that is different from AVClip by the definition in the playitems playitem information.

Usually, specify an AVClip, although specifying of a plurality of AVClip also is possible in batches in any one time.Use the appointment in batches of the Clip_Information_file_names execution AVClip in the playitems playitem information.Fig. 6 has shown that four Clip_Information_file_names of use specify AVClip in batches.First to fourth level among the figure has shown four AVClip time shafts (time shaft AVClips#1-#4), and the layer 5 level has shown the PL time shaft.Four time shafts are specified by these four Clip_Information_file_names that are included in the playitems playitem information.This allows by In_times and the four kinds of alternative playbacks of playing intervals of Out_times definition.As a result, the interval that definition is made up of many changeable angle videos (alleged multi-angle at interval) on the PL time shaft.

Arbitrary interval on PLMark information " PLMark () " the appointment PL time shaft is as chapters and sections.Fig. 7 has shown the inner structure of PLMark information, and this inner structure comprises ref_to_playitem_id and the Mark_time_stamp that arrow pm1 is indicated.Fig. 8 has shown use PLMark definition section.First level among Fig. 8 shows the AVClip time shaft, and second level shows the PL time shaft.The playitems playitem (ref_to_playitem_id) among arrow pk1 among Fig. 8 and the pk2 demonstration PLMark and the appointment of time point (Mark_time_stamp).Because these specify in definition three chapters and sections (Chapters#1-#3) on the PL time shaft.This has finished the description to PLMark.

SubPath information is then described.

SubPath information " SubPath () " defines one or more playbacks at interval by assigned I n_time on the SubClip time shaft and Out_time, and has the inner structure shown in Fig. 9.SubPath information is made up of the indicated sub-playitems playitem information " SubPlayItem () " of arrow sh1.In the feature of arrow sh2 institute mark, sub-playitems playitem information is by Clip_Information_file_name, In_time, and Out_time, Sync_PlayItem_Id and Sync_Start_PTS_of_PlayItem form.Use is included in the Clip_Information_file_name in the sub-playitems playitem information, and In_time and Out_time specify In_times and the Out_times on the SubClip time shaft.Sync_PlayItem_Id and Sync_Start_PTS_of_PlayItem are used to make the playback on SubClip time shaft and the PL time shaft synchronous at interval.This allows the processing on SubClip time shaft and PL time shaft to carry out with synchronized with each other.

Figure 10 has shown the playback definition at interval on synchronous appointment and the SubClip time shaft.First level among Figure 10 shows the PL time shaft, and second level shows the SubClip time shaft.SubPlayItem.In_time among Figure 10 and SubPlayItem.Out_time show beginning and the end at interval of resetting respectively.Thereby the interval of obviously resetting also is defined on the SubClip time shaft.The display the play synchronous indication of project of the Sync_PlayItem_Id of arrow Sn1 institute mark, and the Sync_Start_PTS_of_PlayItem of arrow Sn2 institute mark specify during the playitems playitem on the PL time shaft a bit.

PL information among the BD-ROM is characterised in that it makes that definition allows to switch the multi-angle interval of AVClip and allow the sync interval of synchronous AVClip and SubClip to become possibility.With clip information and PL information categorization is " static scenario ".

" dynamic script " is described below.Here " dynamically " content of referring to the control of resetting changes owing to the state variation in user's key events and the replay device 200 etc.Use BD-ROM, can use the description identical to describe the control of resetting with java application.That is to say that use BD-ROM, java application serves as dynamic script.

Java application

Java application is described below.Java application is made up of the one or more xlet programs in the accumulation area that is loaded in virtual machine (being also referred to as working storage).Application program is made of the xlet program and the data that are loaded in the working storage.The java application structure as mentioned above.

Actual java application is the Java files (00001.jar) in the BDJA catalogue under the BDMV catalogue that is stored among Fig. 2.Below with reference to Figure 11 the Java files are described.

The Java files

Java files (00001.jar among Fig. 2) are the set of one or more class files and data file etc.Figure 11 A has shown program and the data that are collected in the files.Data among Figure 11 A are by the collection of Java archival memory and a plurality of files in the bibliographic structure shown in being arranged in the frame.This bibliographic structure is by root directory, and Java catalogue and image directory are formed, common.pkg file wherein, class file (aaa.class, bbb.class) and the menu.jpg file be placed in separately the catalogue.The Java files are that the Java archival memory is with these file collections result together.When class file when BD-ROM reads in high-speed cache and data are expanded, and in high-speed cache, treat as a plurality of files that are present in the catalogue.Five digit number numerical value " 00001 " in the filename of Java files shows the identifier (ID) of Java files, and the BD-J object uses this value to come with reference to the Java files.When being read into the Java files in the high-speed cache,, might extract the data and the program that constitute any java application by this numerical value in the reference paper name.

(aaa.class is bbb.class) corresponding to above xlet program for class file among Figure 11 A.Xlet program (the being example) definition of using these class files is by the playback procedure in the mode of operation (BD-J) of Java platform support.The xlet program is to use the java applet of Java multimedia framework (JMF) interface, and handles based on carrying out according to the key events of JMF etc.

In addition, the xlet program also can be carried out the process of access websites and download content.This allows to reset by mixing the original artwork of download content and list creating.

The class file of xlet program is then described.Figure 11 B has shown the inner structure of class file.As shown in Figure 11 B, this class file and general category files classes seemingly, by constant pool, interface and method 1,2,3 ... n forms.Method in the class file comprises those methods (EventListener) that triggered by the key events of pre-record and is used for calling those methods of application programming interface (API) function of replay device 200.The independent variable that occurs when distributing to the local variable of designation method and calling described method by utilization is described the computation process in these methods etc.The Java files as mentioned above.

The file of expansion " bdbj " by name is then described.This document (00001.bdbj) storage BD-J object.BD-J to as if information, this information defines title by the AVClip that is defined in the PL information and application program are interrelated.Figure 12 has shown the inner structure of BD-J object.BD-J object display application program management table and PL information reference value.The application program management table shows that java application, the life cycle of described java applet are by ID (application program ID) and the ID that belong to the Java files of the particular application title that define of BD-J object by enumerating single java application.In other words, each application program is made of one or more Java files.

PL information reference value shows PL information to be shown when the beginning title.

The file of expansion " bdbj " by name as mentioned above.

The INDEX.BDMV file is then described.

INDEX.BDMV is the management information relevant with whole BD-ROM.This document comprises following information, such as sign cinematographic work supplier's organization id and the CD ID that the single BD-ROM that is provided by supplier is provided.When at first in replay device, discerning CD uniquely after the loading optical disk by reading INDEX.BDMV.INDEX.BDMV can additionally comprise such table, but this table is mapped to a plurality of play title among the BD-ROM BD-J object of the single title of definition.The type of the title that can record BD-ROM is described below, and described type comprises FirstPlayTitle, Top_menuTitle and title #1-#3.

Before being responsible for doing other things when loading BD-ROM, plays FirstPlayTitle the dynamic trade mark of BD-ROM.FirstPlayTitle thereby realized when loading BD-ROM, playing the creator and/or the publisher's that represent cinematographic work dynamic trade mark.

Top_menuTitle by AVClip and the application program of menu of playing the top layer of the menu level be arranged in BD-ROM form.

Title #1, #2 and #3 are corresponding to common cinematographic work.

In other words, INDEX.BDMV shows FirstPlayTitle, the corresponding relation of Top_menuTitle and title #1-#3 and single BD-J object.

Figure 13 has shown the inner structure of INDEX.BDMV.This document shows FirstPlayTitle information, Top_menuTitle information, title #1 information, the corresponding relation of the BD-J object of title #2 information and title #3 information and title ID and these titles of definition.The BD-J object of definition title can use heading message to identify, and can derive from these BD-J objects and be used for synchronous PL information and application program.This has finished the description to BD-ROM.

BD-ROM is not about the used unique recording medium of replay device of the present invention.

Also use and the incorporate hard disk of replay device (local storage) at playback duration.The data that are recorded in the local storage are described below.

Figure 14 has shown the bibliographic structure in the local storage.In this bibliographic structure, sub-directory " organization#1 " is positioned under the root directory, and sub-directory " disc#1 " and " disc#2 " are arranged under this catalogue.The organization#1 catalogue is assigned to the specific supplier of cinematographic work.Disc#1 is assigned to the different BD-ROM that is provided by each supplier with the disc#2 catalogue.In these directory names, utilize organization id and the CD ID shown in the INDEX.BDMV file in BD-ROM separately.

Provide and allow to store independently the data download relevant corresponding to the corresponding catalogue of the BD-ROMs in specific supplier's the catalogue with single BD-ROMs.Under these sub-directories, stored PL information, clip information, and AVClip, be stored on the BD-ROM content class seemingly.Also additionally have the Java files, the BD-J object merges management information file and signing messages file.

Compare with the PL information on the BD-ROM that only relates to the AVClip on the BD-ROM, the PL information in the local storage comprise relate on the BD-ROM with local storage in the information of AVClip; Just, as the PL information that virtual package is newly added, its specific examples is the PLINFO#2 among Figure 14.

Play project information by four here, and constitute PL information (playitems playitem information #1-#4) in the local storage.Relate to the clip information on the BD-ROM and its excess-three bar (playitems playitem information #2-#4) relates under the situation of the clip information in the local storage in top news (playitems playitem information #1), this PL information can define single data stream sequences by the AVClip with the local storage from BD-ROM, as shown in Figure 15.

Figure 15 has shown the type by the playlist playback time shaft that is stored in the PL information definition in the local storage.First level shows the playback time countershaft that is stored in the AVClip#1 on the BD-ROM, and second level is presented at the playback time countershaft of the playlist that defines in the PL information that is stored in the local storage, the 3rd, the 4th and the layer 5 level show the AVClip#2, the #3 that are stored in the local storage and the playback time countershaft of #4 respectively.

Specify under AVClip#2, #3 and the situation of #4 as the interval of resetting at playitems playitem information #2, #3 and #4, the PL information in the local storage can be defined as single data stream sequences with the AVClip with in the local storage on the BD-ROM.

As mentioned above, the AVClip with in the local storage on the BD-ROM can be defined as single data stream sequences, and by merge on this data stream sequences and the BD-ROM or local storage in application program, can by AVClip and by be recorded on the BD-ROM or local storage in application program constitute single title.As shown in Figure 16 A, be recorded on the BD-ROM and AVClip#2-#4 and java application are recorded under the situation in the local storage at AVClip#1, these AVClip and java application can be treated as single title as shown in Figure 16 B.

Then describe and merge management information.Merge management information and show the disc#1 in the local storage and the All Files of the formation virtual package in the #2 catalogue uniquely, and be stored in the specified file (being called as " merging management information file " hereinafter).Figure 17 has shown the typical internal structure that merges management information file.Merging management information file is made up of the stored position information of each file that constitutes virtual package in the local storage.Stored position information is made up of with the file path of indicating the memory location of each file in the local storage as the identifier of each file of virtual package visit.

The signing messages file is then described.The signing messages file is merging the electronic signature that shows supplier on the management information file.Normally used electronic signature needs the hashed value of the information of tamperproof by calculating, and uses this hashed value of certain secret key encryption to obtain.

This has finished the description to local storage.

Embodiment about replay device of the present invention is described below.Figure 18 has shown the hardware configuration of replay device.Replay device is by BD-ROM driver 1, read buffer 2, demultiplexer (Demux) 3, Video Decoder 4, video plane 5, graphic presentation (P figure) demoder 6, graphic presentation (P figure) plane 7, synthesis unit 8, font generator 9, interactive graphics (IG) (I figure) demoder 10, switch 11, interactive graphics (IG) (I figure) plane 12, synthesis unit 13, color lookup table (CLUT) unit 14, color lookup table (CLUT) unit 15, audio decoder 16, the network equipment 17, local storage 18, read buffer 19, demultiplexer (Demux) 20, instruction ROM 21, customer incident (UE) processing unit 22, player status registers (PSR) group 23, CPU (central processing unit) (CPU) 24, script storer 25, local storage 26 and switch 27.

Element (BD-ROM driver 1-audio decoder 16) about the playback that is recorded in the AVClip on the BD-ROM 100 is at first described.

BD-ROM driver 1 loads/withdraws from BD-ROMs, and visit BD-ROM 100.

Read buffer 2 is first in first out (FIFO) storeies, and wherein the transport stream (TS) that reads from BD-ROM 100 or local storage 18 basis that wraps in first in first out is stored.

Demux 3 reads the TS bag from read buffer 2, and converts these TS bags to Packet Elementary Stream (PES) bag.Have the PES bag of the Packet Identifier (PID) that is provided with by CPU 24, be output to Video Decoder 4 then, P graphic decoder 6, in I graphic decoder 10 and the audio decoder 16 one.

The PES that Video Decoder 4 decodings are exported from Demux 3 wraps the picture with the acquisition uncompressed form, and these pictures are write video plane 5.

Video plane 5 is used to store not compressed picture.The plane is the memory block that is used to store a screen image prime number certificate in the replay device.Video plane 5 has 1920 * 1080 resolution, and wherein Cun Chu image data is made of the pixel data that 16 YUV express.In video plane 5, the playback of video in every frame video flowing can be scaled.Convergent-divergent comprises that the playback of video with every frame is changed to 1/4 (1/4th) or 1/1 (full scale chi) on whole video plane 5.In the BD-J pattern according to carrying out convergent-divergent from the instruction of CPU 24, thereby allow screen to produce, the reproduced picture of video flowing is transferred on the angle of screen or projects on the whole screen thus.

The P graphical stream that P graphic decoder 6 decoding is read from BD-ROM, and will not compress figure and write P graphics plane 7.Captions appear on the screen owing to graphical stream is decoded.

P graphics plane 7 is the storeies that have the storage space that is used for screen data, and it can be stored a screen and not compress figure.This plane has 1920 * 1080 resolution, and wherein the pixel of not compressing figure in the P graphics plane 7 is expressed by 8 position index colors.The not compression figure that is stored in the P graphics plane 7 is submitted for demonstration by using CLUT to change indexed color.

Synthesis unit 8 is synthetic to be stored in the not compressed picture data in the video plane 5 and the memory contents of P graphics plane 7.

Font generator 9 use character fonts are expanded the text codes in the TextST stream that comprises among the figure on the throne, and spreading code is write P graphics plane 7.

The I graphical stream that I graphic decoder 10 is decoded in the DVD-like pattern and read from BD-ROM or local storage 18, and will not compress figure and write I graphics plane 12.

Switch 11 optionally is written to P graphics plane 7 with the font sequence of font generator 9 generations with by one in the figure of P graphic decoder 6 decoding generations.

Use the not compression figure that produces by 10 decodings of I graphic decoder to write I graphics plane 12.Use α RGB full color in the BD-J pattern, character and figure that application program is drawn to be written in the I graphics plane 12.

The memory contents of synthesis unit 13 synthetic I graphics planes 12 and the composograph of exporting from synthesis unit 8 (memory contents of promptly synthetic not compressed picture data and P graphics plane 7).Should synthetic allow to write the character of I graphic decoder 10 and graphics overlay on compressed picture data not and be shown by application program.

The indexed color that does not compress in the figure that CLUT unit 14 will be stored in the video plane 5 converts Y/Cr/Cb to.

The indexed color that does not compress in the figure that will be stored in the I graphics plane 15 when CLUT unit 15 when DVD-like pattern (promptly being used for playing the pattern that resembles the such digital stream of traditional DVD) is worked converts Y/Cr/Cb to.When BD-J pattern (promptly being used for synchronously playing with java application the pattern of digital stream) is worked, CLUT unit 15 converts α RGB full color to Y/Cr/Cb.It should be noted that java application can bind or be not tied to title, and binding or be not tied to CD.

Not audio compressed data is wrapped and exported to audio decoder 16 decodings from the PES of Demux 3 outputs.

The element of resetting about AVClip as mentioned above.Element (network equipment 17-Demux 20) about working in the BD-J pattern is described below.

The communication function that the network equipment 17 is realized in the replay device.Under the situation of application program specified URL in the BD-J pattern, the network equipment 17 is set up and is connected with the transmission control protocol (TCP) of the indicated website of URL or file transfer protocol (FTP) (FTP) etc.Because connection is established java application and is downloaded from the website.

Local storage 18 is hard disks, and it is used to store the connection of setting up by the network equipment 17 from the website downloaded contents, the content that provides from the communication except that BD-ROM and recording medium, and metadata.Metadata is the information that is used for binding and manage the download content of local storage 18.By visit local storage 18, the application program in the BD-J pattern can use the download content to carry out many processing.Local storage 18 is also preserved and is merged management information file.

Read buffer 19 is FIFO storeies, its SubClip be included in be stored on the BD-ROM100 or local storage 18 in the download content in situation under constitute the TS bag of SubClip based on going into storage earlier earlier.

Demux 20 reads the TS bag from read buffer 19, and converts the TS bag that reads to the PES bag.PES bag with specific PID outputs to P graphic decoder 6, font generator 9 and audio decoder 16 then.

Above element 17-20 allows to be played to be similar to the mode that is recorded in the content on the BD-ROM by the content of java application by network download.The central controlled element (instruction ROM21-switch 27) that is used for realizing replay device is described below.

Instruction ROM 21 storing softwares, the control that this software definition is relevant with replay device.

The customer incident that the response telepilot of replay device or the key operation of front panel, UE processing unit 22 will be used to carry out these operations outputs to CPU 24.

PSR group 23 is one group of register in replay device inside, is made up of 64 player status registers (PSR) and 4096 general-purpose registers (GPR).PSR 4-8 is used to represent current playback point.

PSR4 is owing to be set to the title that the value of 1-100 is indicated current playback point.It is menu top (top menu) that PSR4 is set to the current playback point of " 0 " expression.

PSR 5 is owing to be set to the numbering of section that the value of 1-999 is indicated current playback point.It is zero that PSR 5 is set to the numbering of section of " 0xFFFF " indication in replay device.

PSR6 is owing to be set to the numbering that the value of 0-999 is indicated the affiliated PL (current PL) of current playback point.

PSR 7 is owing to be set to the numbering that the value of 0-255 is indicated the affiliated playitems playitem (current playitems playitem) of current playback point.

PSR 8 is owing to be set to the current playback point (current demonstration time or " PTM ") that the time precision of 45KHz is used in the value indication of 0-0xFFFFFFFF.PSR 4-8 allows the current playback point of sign on the time shaft of the whole BD-ROM shown in Figure 23 A.

CPU 24 operation is stored in software among the instruction ROM 21 to carry out the control relevant with whole replay device.These controls dynamically change, and it depends on the PSR value from the customer incident of UE processing unit 22 outputs and PSR group 23.

Script storer 25 is used to store current PL information and current clip information.Current PL information is a current processed PL information that is recorded on the BD-ROM.Current clip information is a current processed clip information that is recorded on the BD-ROM.

Suppose to read from BD-ROM low speed, local storage 26 is cache memories of temporarily storing the recorded content of BD-ROM.The application program that allows in the BD-J pattern that provides of local storage 26 is moved efficiently.

The data delivery that switch 27 optionally will read from BD-ROM and local storage 18 is to read buffer 2, read buffer 19, in script storer 25 and the local storage 26 one.

About the hardware configuration of the replay device of present embodiment as mentioned above.Describe below about the software configuration in the replay device of present embodiment.

Figure 19 has described by hardware and has been stored in the element with the layer structure rearrangement that the software on the instruction ROM 21 is formed.As shown in Figure 19, the layer structure of replay device is by ground floor (BD layer), and the second layer (BD player model) and the 3rd layer (application runtime environment) are formed.

The hardware configuration of the replay device shown in Figure 18 belongs to ground floor.In this hardware configuration, " the BD player " of the ground floor in Figure 19 comprises by Video Decoder 4, P graphic decoder 6, " demoder " that I graphic decoder 10 and audio decoder 16 are formed, by video plane 5, " plane " that P graphics plane 7 and I graphics plane 12 are formed, BD-ROM 100 and related file system, local storage 18 and related file system, and the network equipment 17.

" the BD player model " of the second layer by the lower floor that is used for display engine 31 and virtual file system unit 38 and the upper strata of the Control Engine 32 that is used to reset form, and provide the api function relevant with higher level.

PSR group 23 and script storer 25 shown in Figure 18 are present in playback Control Engine 32 inside.

Be made up of the layer that comprises module management 33 the 3rd layer " application runtime environment ", described module management 33 is stacked on the layer that comprises DVD-like module 29a and Java platform 29b.

Element in this software configuration is described below.

DVD-like module 29a, Java platform 29b

The order of DVD-like module 29a decoded navigation, and carry out the function call relevant with playback Control Engine 32 based on decoded result.

Java platform 29b is so-called Java platform with hierarchical structure, and described hierarchical structure is made up of the middleware software (not shown) of Java Virtual Machine 30 and Java Virtual Machine operation.

Java Virtual Machine 30

The xlet program that Java Virtual Machine 30 will constitute application program is loaded in the working storage, decoding xlet program, and in lower floor, carry out control according to decoded result.In order to carry out these control, Java Virtual Machine 30 is used corresponding to the function call of BD replay device middleware software and is replaced described method to the middleware software dissemination method, and to the described function call of playback Control Engine 32 issues.

The inner structure of Java Virtual Machine 30

The inner structure of Java Virtual Machine 30 is described below.Figure 20 has shown the inner structure of Java Virtual Machine 30.As shown in Figure 20, Java Virtual Machine 30 is by CPU 24, user class loading bin 52, and method district 53, working storage 54, thread 55a, 55b ... 55n and Java stack 56a, 56b ... 56n constitutes.

User class loading bin 52 reads class file in the Java files the BDJA catalogue from local storage 26 grades, and the class file that reads is stored in the method district 53.Read class file because module management 33 sends to user class loading bin 52 with reading instruction of specified file path and is performed by user class loading bin 52.If the class file that file path indication local storage 26, user class loading bin 52 will constitute in the Java files of application program reads in working storage 54 from local storage 26.If the class file that the catalogue in the file path indication file system, user class loading bin 52 will constitute in the Java files of application program reads in working storage 54 from BD-ROM or local storage 18.

The class file that 53 storages of method district are read from local storage 26 by user class loading bin 52.

Working storage 54 is accumulation areas of the example of the various types of file of so-called storage.Working storage 54 storages are corresponding to the example and the class file that is read into method district 53 of resident applications.An example is the xlet program that constitutes application program, by the xlet program is placed into described application program can be carried out.

Thread 55a, 55b ... 55n is the logic execution entity that is used for carrying out the method that is stored in working storage 54.Their use local variable and are stored in the operand stack to carry out as the independent variable of operand and calculate, and result of calculation is stored in local variable or the operand stack.Arrow ky1 among Figure 20, ky2 and kyn symbolically indicating means offer thread 55a from working storage 54,55b ... 55n.Carry out entity although CPU is unique physics, in Java Virtual Machine 30, can have up to 64 logics and carry out entity or thread.Thread can newly be created and existing thread can be deleted in this numerical value limit, and the number of worker thread can change when Java Virtual Machine 30 work.Can suitably increase the also feasible a plurality of thread parallels ground running example that might use each example of number of thread, and quicken the execution of example thus.

Java stack 56a, 56b ... 56n and thread 55a, 55b ... 55n one to one ground exists, and each has programmable counter (" PC " among Figure 20) and one or more frame.Programmable counter shows current which part of carrying out example.Frame is the stack type zone of at every turn calling of distributing to method, and forms by the operand stack that is used for storing and call the independent variable that occurs simultaneously with by the local variable stack (Figure 20 " local variable ") that method that called is used.All be stacked on Java stack 56a owing to no matter when carry out call frame, 56b ... on the 56n, therefore recursively call self method frame also one be stacked on above another.

The inner structure of Java Virtual Machine as mentioned above.Java Virtual Machine with above structure serves as event-driven and carries out entity.This has finished the description to Java Virtual Machine.

Display engine 31

Display engine 31 is carried out the AV playback.The AV playback of replay device is from the traditional function group of DVD player and CD Player succession, comprises broadcast, stops, suspend beginning (PAUSEON), the EOT end of timeout (PAUSE OFF), quiet (STILL OFF), fast-forward play (x2, x4 etc.), fast reverse play (x2, x4 etc.), audio frequency changes, captions change and angle changes.In order to realize these AV playbacks, display engine 31 control of video demoders 4, P graphic decoder 6, I graphic decoder 10 and audio decoder 16 are read into the part of the AVClip of read buffer 2 with decoding, and described part is corresponding to expeced time.By PSR 8 indicated places (current PTM) are decoded as expeced time, can cause the arbitrfary point among the AVClip to play.

Playback Control Engine 32

Playback Control Engine 32 is carried out various functions, comprises (i) playback control and the state of (ii) gathering/be provided with PSR group 23 to playlist.Playback control function comprises according to current PL information and clip information makes display engine 31 carry out the broadcast in the above AV playback and stop.Function (i) and (ii) according to being performed from the function call of DVD-like module 29a and Java platform 29b.

The synchronous of processing that processing that playback Control Engine 32 carries out and Java Virtual Machine carry out then described.Playback Control Engine 32 is carried out based on the PL information processing when call function.Carry out this processing in the duration of the AVClip that is used to reset, no matter playback duration is 15 minutes or 30 minutes.The problem here is to return success between the time that time of response and 32 physical ends of playback Control Engine handle at Java Virtual Machine 30 to have time-delay (time lag).Whether successful the Java Virtual Machine 30 of carrying out entity as event-driven return indication the response of resetting immediately calling after, and playback Control Engine 32 finished the playback of AVClip and playitems playitem after the past 15 or 30 minutes playback duration.Thereby the time that success response turns back to application program can not be used as the basis that measurement finished with aftertreatment in 15 or 30 minutes.Finish to become difficult more when weigh processing when the PL playback duration is carried out F.F. or rewinding, this is because 15 or 30 minutes playback duration changes.Given this, when the playback of each playitems playitem or AVClip finished, the incident that playback Control Engine 32 will indicate playitems playitem and AVClip playback to finish outputed to application program.This output makes application program know playback Control Engine 32 finishes playitems playitem or AVClip playback at which point.

Module management 33

Module management 33 reads INDEX.BDMV and selects in many heading messages among the INDEX.BDMV one as current heading message.Module management 33 reads the indicated BD-J object of current heading message, and carries out the control of resetting based on the PL information Control playback Control Engine 32 described in the BD-J object.Module management 33 is also controlled Java Virtual Machine 30 to read and to carry out the Java files described in the BD-J object.

If finish based on the playback of the digital stream of PL information and the execution of application program, if perhaps the user calls menu, module management 33 reads the heading message of another title of definition, and selects this heading message as current heading message.Reset or custom menu calls and selects another heading message to be called as " title variation " as the process of current heading message according to digital stream.

State-transition shown in Figure 21 can change realization by repeatedly carrying out title.Fenestra ovalis oral thermometer indicating topic among Figure 21.

Title comprises " FirstPlayTitle " that is used to reset when BD-ROM is loaded first, constitute " Top_menuTitle " and other common titles of top menu.Arrow jh1 among Figure 21, jh2, jh3, jh4, jh5, jh6, jh7 and jh8 symbolically indicate the transfer between the title.

State-transition shown in Figure 21 comprises when BD-ROM is loaded plays FirstPlayTitle, transfers to Top_menuTitle then and waits for and selecting from top menu.

When the user when menu is selected, before turning back to Top_menuTitle once more according to selecting to play each title.Up to CD withdrawed from the process that ad infinitum repeats this processing be CD content exclusive state-transition.This state-transition realizes under the control of above-mentioned module management 33.

This has finished Java Virtual Machine 30, display engine 31, the description of playback Control Engine 32 and module management 33.Control by 30 pairs of playback Control Engine 32 of Java Virtual Machine is performed by virtual package.In order to realize the control to playback Control Engine 32 by virtual package, replay device comprises network management module 37 and virtual file system unit 38.These elements are then described.

Network management module 37

Network management module 37 produces the required data of virtual package according to downloading from the website that supplier managed of cinematographic work from the method call of application program.These data comprise replaces or adds the merging management information file to, the file of the file on signing messages file and the BD-ROM (PL information, clip information, AVClip, the Java files, or the like).When the application program in the working storage 54 proposed download request, network management module 37 produced the required data of virtual package by network download, and data downloaded is write local storage 18.

Virtual file system unit 38

Virtual file system unit 38 is the elements that belong to the second layer among Figure 19, and it produces virtual package according to the method call from application program.The generation of virtual package comprises the processing of the state of managing the AVClip that constitutes virtual package and generates the virtual package information processing.

Virtual package information

Volume management information on the virtual package information expansion BD-ROM.Here the volume management information definition that relates to is present in the bibliographic structure on the recording medium, and forms by the directory management information relevant with catalogue with file file associated management information.

Virtual package information is expanded bibliographic structure on the BD-ROM by the volume management information of new file control information being added to the Display directory structure.The file control information that adds volume management information to relates to the PL information that is present in the local storage 18, clip information, AVClip and Java files.Producing this document management information has been added to virtual package information wherein and the process that this virtual package information offers playback Control Engine 32 is allowed the identification of playback Control Engine as be present in the PL information in the local storage 18 of being stored on the BD-ROM, clip information, AVClip and Java files.Figure 22 has shown by virtual file system unit 38 and has typically produced virtual package information.Be the bibliographic structure on the BD-ROM on the upper left side of Figure 22, this is identical with Fig. 2.Be the bibliographic structure in the local storage 18 in the lower left, this is identical with Figure 14.With the PL information in the local storage 18, clip information, AVClip and Java files file associated management information are added to the volume management information on the BD-ROM.

Particularly:

I) with local storage 18 in playlist information #2 (00002.mpls) file associated management information be added to directory management information in the PLAYLIST catalogue;

Ii) with local storage 18 in clip information #2, #3 and #4 (00004.clip) file associated management information is added to the directory management information in the CLIPINF catalogue for 00002.clip, 00003.clip;

Iii) with local storage 18 in AVClip#2, #3 and #4 (00004.m2ts) file associated management information is added to the directory management information in the STREAM catalogue for 00002.m2ts, 00003.m2ts;

Iv) with local storage 18 in Java files " 00002.jar " file associated management information be added to directory management information in the BDJA catalogue;

Obtain virtual package information thus.In other words, virtual package information is the volume management information that has been added in top mode.

Then this virtual package information is offered playback Control Engine 32, the playback Control Engine thus can with BD-ROM on PL information, clip information, AVClip, with the PL information of handling on the equal basis of Java files in the local storage 18, clip information, AVClip and Java files.The generation of virtual package information as mentioned above.

The timing of virtual package information updating is described below.

Suppose to work as according to the arrow jh1 among Figure 21, BD-ROM was withdrawed from after jh2, jh3, the numerical value of the reference marker that jh4 etc. are indicated carried out in proper order and shift.This permission is counted as single time shaft from gap continuous time that being loaded into of BD-ROM withdrawed from.This time shaft is used as the time shaft of whole CD.Figure 23 A has shown the time shaft of whole CD, and Figure 23 B has shown the structure of this time shaft.As shown in Figure 23 B, the time shaft of whole CD is by the interval of playing FirstPlayTitle, and the interval of playing the interval of Top_menuTitle and playing common title (title #1 etc.) is formed.About the playback mode at interval that defines these titles, because each title only is made of a BD-J object, the playback that therefore any given BD-J object effectively can be taken as title at interval at interval.Spaces between these reset at interval are the time of virtual package information updating from (i.e. " the title variation ") slightly at interval that a title changes to another title perhaps.

Then use Figure 24 to describe the process that the download of being carried out by java application newly merges management and signing messages file and content file.

Java application at first sends to server (step S11) with current merging management information file, and request is downloaded thus, and judges whether to receive from data in server (step S12).When data were downloaded, java application was created new directory in corresponding CD-disc catalogs, and the merging management information file that will download and signing messages file write new directory (step S13).It should be noted that if the filename of merging management of downloading and signing messages file is not consistent with existing merging management and signing messages file in the CD-disc catalogs file in download can directly be placed on and not create new directory under the existing catalogue (CD #1 file).With the AVClip that downloads, clip information, PL information and Java files write respective directories (step S14).Java application uses the file path of new merging management and signing messages file to call update request method (step S15) as independent variable then.Java application judges whether rreturn value is false (step S16), and if be false then termination.If rreturn value is false, then java application uses the virtual package information and executing of upgrading to handle (step S17).

Although it should be noted that according to java application when request is downloaded current merging management information file being sent to server has described above processing, java application can only send the ID that merges management information file.

Receive renewal " preparation " process that update request is carried out by virtual file system unit 38 in case then use Figure 25 to describe.

Virtual file system unit 38 at first uses the file path that serves as independent variable when call method to read new merging management and signing messages file (step S21), and certifying signature is so that whether the new management information file that merges of check has been altered (step S22).Execute exception stops if signature can not be verified.If signature is verified, then virtual file system unit 38 is checked the authority (step S23) of invokes application.Execute exception stops if invokes application is uncommitted.If invokes application is authorized to, then virtual file system unit 38 judges whether the new specified file of management information file that merges actually exists in (step S24) in the local storage.Execute exception stops if these files do not exist.If these files exist, then virtual file system unit 38 will newly merge management and signing messages file and the All Files from the local storage of new pooling information file include and become read-only (step S25).

Figure 26 is the process flow diagram of being handled by the virtual package " renewal " that virtual file system unit 38 is carried out.Virtual file system unit 38 at first identifies the CD-disc catalogs corresponding to the BD-ROM that is loaded, and when calling the update request method with java application, serve as the specified new merging management of the file path of independent variable and signing messages file and replace merging management and signing messages file (step S31) in the CD-disc catalogs.The file control information of the PL information that virtual file system unit 38 is specified with the merging management information file in the local storage 18 then adds in the directory management information in the PLAYLIST catalogue (step S32), and execution in step S33 is to the circulation of S37.This circulation comprises for being present in each bar clip information repeating step S34 in the local storage 18 to S36.Here, a clip information that is used for circular treatment is assumed to clip information x.Virtual file system unit 38 signs are corresponding to the AVClip (step S34) of clip information x, the file control information of the clip information x that merging management information file in the local storage 18 is specified adds in the directory management information in the CLIPINF catalogue (step S35), and the file control information of the AVClip x that the merging management information file in the local storage 18 is specified adds in the directory management information in the STREAM catalogue (step S36).By repeating above the processing, be added to volume management information with clip information and AVClip file associated management information for all clip information in the local storage 18 and AVClip.Thus obtained volume management information is virtual package information.Virtual file system unit 38 offers the application program (step S38) of carrying out virtual package and calling with this virtual package information, and end process.

Figure 27 is the process flow diagram by the processing of module management 33 execution.

Module management 33 at first selects FirstPlayTitle as current title (step S41), appointment as current BD-J object (step S42), and makes playback Control Engine 32 based on the PL information and executing PL described in the current BD-J object reset (step S43) corresponding to the BD-J object of current title.Module management 33 makes Java platform 29b move the java application (step S44) of the current title in the application program management table that its life cycle is current BD-J object then, and makes Java platform 29b stop the java application that its life cycle is not current title (step S45).Module management 33 judges then the PL based on current PL information resets whether finish (step S46), and if finish, 33 signs of module management next title (step S47), and select this title as current title (step S48).If current PL resets and also do not finish, then module management 33 judges whether to take place title and calls (step S49), and if like this then moves to step S47.Do not call if title takes place, then module management 33 judges whether to take place title redirect (step S50), and if like this then moves to step S47.If the title redirect does not take place, then module management 33 judges whether the primary application program of current title finishes (step S51) and if like this then move to step S47.If primary application program does not also finish, then module management 33 turns back to step S46.

Figure 28 is the process flow diagram of being handled by the playback that playback Control Engine 32 is carried out.With article one playitems playitem information setting in the current PL information be the circulation (step S61) of Control Engine 32 execution in step S62 of resetting after the playitems playitem i to S68.Control variable in this circulation is a variable i.After S66, make control variable i increase " 1 " surpasses playitems playitem up to variable i quantity (step S67) at execution in step S62 in step S68 playback Control Engine 32.

Step S62 is then described to S66.AVClip described in the Clip_information_file_name among the playback Control Engine 32 playitems playitem i is set to AVClipj (step S62), and indication driving arrangement and the AVClip j (step S63) of demoder broadcast from PlayItem.In_time to PlayItem.Out_time.Playback Control Engine 32 judges whether there is the sub-playitems playitem k (step S64) that specifies playitems playitem i in Sync_PlayItem_Id, and if this sub-playitems playitem do not exist then directly move to step S67.Exist as fruit playitems playitem k, the described AVClip of Clip_information_file_name of the Control Engine of then resetting 32 sub-playitems playitem k is set to AVClip h (step S65), the AVClip h of putting from Sync_Start_PTS_of_PlayItem to Out_time (step S66) is thought highly of in indication driving arrangement and decoding, and moves to step S67.

Because repeat this processing for all playitems playitem information that constitute PL information, the defined data stream sequences of PL information is played.

Figure 29 has shown during title changes how to upgrade virtual package information.

First level among Figure 29 shows the title playback interval on the time shaft, and second level shows that its life cycle is the java application of title #1, the 3rd level display digit stream, and the 4th level shows the state of virtual file system unit 38.

In case accept the update request from java application, virtual file system unit 38 is placed on " preparation " state, and carry out the processing shown in Figure 25.

After carrying out this processing, virtual file system unit 38 waits for that at " being ready to " state title changes.When the title variation took place, virtual file system unit 38 was placed on " renewal " state, and carried out the processing shown in Figure 26 to upgrade virtual package before being returned to " stablizing " state.If after virtual file system unit 38 is returned to " stablizing " state, select title #1 from Top_menuTitle once more, then use the virtual package play title #1 that upgrades.

Here, when module management 33 for example finishes owing to the playback of data stream sequences or called menu and selected different titles as current title by the user, title takes place change.

Use Figure 30 to 33 schematically to describe above the processing.

Figure 30 has shown the java application that current merging management information file is sent to server.File shown under the ROOT is arranged in local storage, and the file under the BDMV is arranged in virtual package.

Figure 31 has shown downloaded content file, has newly merged the java application of management information file and new signing messages file." 00012.clpi " and " 00012.m2ts " is the downloaded contents file, and is stored in the merging management in the newMF catalogue and the signing messages file is up-to-date is downloaded.

Figure 32 has shown that request virtual file system unit 38 will have now and has merged the java application that management and signing messages file are updated to up-to-date downloaded files.Specify new merging management and signing messages file to propose this update request by using file path.

Figure 33 has shown merging management and the replacement of signing messages file and the mapping of content file.Shown the replacement of old merging management of reproducting periods and signing messages file in the left side of Figure 33.Shown that on the right side of Figure 33 title changes the mapping of back content file.

The read only attribute that it should be noted that the file of quoting from old merging management information rather than from new merging management information is removed, thereby these files can be write by java application.

Merge the information that management information file comprises the position of indicating the content of adding local storage to.The information of indication additional content position comprises content ID, and content stores is in the directory path of wherein catalogue, or the file path of single content file.When can be in merging management information file during to virtual package with these File mapping description document name map information, thereby allow these files of visit under the different filenames in virtual package.Here, the filename map information is with the filename (comprising file path) in the filename in the local storage (comprising file path) the mapping virtual package.

In this case, produce virtual package as the virtual package medium by virtual file system unit 38, described virtual package medium is made of such file, and the filename of the described file in the virtual package described in the filename map information has been added in the file structure on the BD-ROM.By the file in the virtual package of java application visit be designated as the file in the virtual package rather than BD-ROM goes up or local storage in file.When the file in the java application request accesses virtual bag, virtual file system unit 38 will be visited the destination based on the filename map information and be switched to local storage or BD-ROM.If described desired file in the filename map information, the visit destination becomes the corresponding document in the local storage.If do not describe desired file in the filename map information, the visit destination becomes the corresponding document on the BD-ROM.

In other words, the creator of java application does not need to know single file storage medium (BD-ROM or local storage) thereon, because virtual file system unit 38 will be switched to the medium of the described file of actual storage by the visit destination of the file of java application appointment in the virtual package, alleviated the burden of program creation thus.

According to present embodiment, virtual package is updated during title changes, and this means that the replacement of playback object will can not cause the abnormal operation of replay device.

Embodiment 2

Present embodiment relates to the improvement when the execution title calls.Title calls and cause playing the title that is called after at first suspending current title, continues original header then after the playback of the title that is called finishes.Because it is prerequisite that title calls to continue playback, therefore playback Control Engine 32 will be stored in being used among the PSR the reset systematic parameter of control and be saved in backup PSR when call title, and will be saved parameter return among the PSR after the playback end of the title that is called.

Be the tabulation that is stored in the systematic parameter among the PSR below.PSR 0 to PSR 12 storage shows the systematic parameter of playback mode, and PSR 13 to PSR 19 storages are set to the preferred systems parameter by player, and PSR20 is backup PSR to PSR32.

PSR0:I graphical stream numbering

PSR1: audio stream numbering

PSR2:P graphical stream/TextST flows numbering

PSR3: angle numbering

PSR4: current title identifier

PSR5: current numbering of section

PSR6: current playlist ID

PSR7: current playitems playitem ID

PSR8: playback time information

PSR9: navigation timer

PSR10: options button information

Current page ID in the PSR11:I graphical stream

User's pattern ID in PSR12:P graphical stream and the TextST stream

PSR13: audiovisual age class (parental level)

PSR14: captions support information

PSR15: player setting value (audio frequency)

PSR16: language of audio stream code

The language codes of PSR17:P graphical stream and TextST stream

PSR18: the language codes of menu

PSR19: the version information of player

The backup of PSR20:PSR0

The backup of PSR21:PSR1

The backup of PSR22:PSR2

The backup of PSR23:PSR3

The backup of PSR24:PSR4

The backup of PSR25:PSR5

The backup of PSR26:PSR6

The backup of PSR27:PSR7

The backup of PSR28:PSR8

The backup of PSR29:PSR9

The backup of PSR30:PSR10

The backup of PSR31:PSR11

The backup of PSR32:PSR12

During calling, upgrades title the difference that virtual package information causes calling front and back virtual package information.

Because virtual package information will change when recovering original header, if therefore playback Control Engine 32 is attempted to use backup value to play original header then mistake can be occurred.This problem is avoided by remove backup PSR when the java application request is upgraded.Yet supposing to change not have influence to depend on the content that merges management information file, and whether about the decision of scavenge system parameter value can be waited until the java application processing.

Figure 34 A suspends the process flow diagram of the playback time of current title by the processing of playback Control Engine 32 execution after title calls.Figure 34 B is the process flow diagram of the processing carried out by playback Control Engine 32 when continuing the playback original header after the playback of the title that is called finishes.

When suspending current title playback time, playback Control Engine 32 is saved in PSR 20-32 (step S71) with PSR 0-12.

Continue the original header playback time after the playback of the title that is called finishes, playback Control Engine 32 judges at first whether virtual package is updated (step S81).If upgrade then PSR 20-32 returned to PSR 0-12 (step S83), if virtual package information has been updated before execution in step S83 initialization PSR20-32 (step S82).

According to present embodiment, during title calls when virtual package information has been updated initialization backup PSR, eliminate thus when the danger that continues original header playback time generation playback error.Thereby make playback Control Engine 32 steady operations.

It should be noted that when virtual package information is updated the system parameter values among the PSR can be forced to remove, rather than java application is waited until in this decision handle.

Embodiment 3

Present embodiment relates to a kind of method, and this method is used for managing the version of merging management information and specifies the additional content that is used to merge from the resident applications of replay device.Figure 35 has shown the representative content about the merging management information file of present embodiment.In embodiment 1, upgrade and merge management information file (or be stored in or rather wherein merging management information) by rewriting old merging management information, thereby cause old information to be wiped free of.In the present embodiment, newly merge management information and constantly be added in the file, even and also do not rewrite old information for identical CD ID.Thereby, if virtual file system unit 38 cancellations produce virtual package and are returned to original BD-ROM, reflect that then the information of this state is retained in the merging management information file.In this case, the corresponding units in the merging target directory of merging management information file is left blank or writes down the character string of indicating original BD-ROM.

Do not rewrite old merging management information when carry out upgrading and make previous merging management information (history) is retained in and merge in the management information file,, can produce legacy version with reference to previous merging management information if the user wants the legacy version of virtual package then.And before the virtual package that is produced by the user can not only produce from java application but also the resident applications from replay device with reference to merging management information file (perhaps being stored in old merging management information wherein or rather).

Use another example of previous merging management information to comprise by resident applications and show the additional content tabulation, thereby the user can delete undesired additional content from resident applications.Since merge the catalogue that management information file can be used to distinguish stores additional content, therefore also can be from the application program except the java application of stores additional content (being resident applications) retrieval and deletion additional content.

Figure 36 has shown the java application that upgrades about the request virtual package of present embodiment.Be such fact with the difference of embodiment 1, promptly constantly add merging management information under the situation of not rewriting old information, the merging management information that promptly is used in object optical disc ID exists.Java application allows to merge up-to-date in a management information file merging management information by appending the date and time information sign when asking virtual package to be upgraded.Date and time information is not limited to the date, also may simply be serial number.

Figure 37 has shown the typical additive contents list that is shown to the user by the resident applications of using the merging management information file.Here, the additional content tabulation that is shown is based on the merging management information file shown in Figure 35.It is desirable to show and make the user grasp the information that additional content relates to.Additional content among Figure 37 is shown as the content name.Although only date and time information is added to the merging management information among Figure 36, also can add the summary of additional content, because resident applications can be carried out such demonstration.In this case, provide the summary of additional content to be used for when java application request virtual package is upgraded, importing with content ID.These summaries can be for comprising the file specified file path of summary separately, rather than comprise the direct input of character string simply.Thereby merge management information memory contents summary except update date, and resident applications can show these summaries together with date and time information in the additional content tabulation.

Be better than and make java application given content summary, show certain content about and so on metamessage can be appended to content itself, resident applications can read this information and based on the information demonstration summary that reads.

" interpolation " hurdle among Figure 37 shows the date that each additional content merges with BD-ROM first.This information also can read from merging management information.

It should be noted that merge additional content first date can with merge management information and separate preservation.The date that these dates also can be created from the catalogue of stores additional content is determined.When one of selector button in being presented at the additional content tabulation was pressed, resident applications was written to the directory path/CD ID and the option date of selected content in the merging management information file as corresponding merging management information.In other words, the additional content of selecting recently becomes up-to-date merging management information.If select original BD-ROM, indicate the value of original BD-ROM or blank cell to be inserted in the merging target directory that merges management information file.When one of delete button in being presented at the additional content tabulation was pressed, resident applications read the catalogue of the additional content that is used to delete with reference to merging management information file, and deletes this catalogue.Merging management information corresponding to the content ID of this content is also deleted from merging management information file.

Figure 38 be about present embodiment from the loading of BD-ROM process flow diagram up to the treatment scheme of resetting.Virtual file system unit 38 is at first checked the CD ID (step S91) of the BD-ROM that is loaded, read merging management information file (step S92), and judge whether to exist merging management information (step S93) corresponding to the CD ID of the BD-ROM that is loaded.If judge whether fixed (step S93=is not), then only use original BD-ROM to carry out reset (step S94).If judge it is sure (step S93=is), then use up-to-date merging management information to produce virtual package (step S95).During producing virtual package, virtual file system unit 38 judges whether to detect mistake (step S96).If judge it is sure (step S96=is), then virtual file system unit 38 judges whether to exist the merging management information (step S97) formerly corresponding to the CD ID of BD-ROM.If judge it is sure (step S97=is), then use the version of the merging management information before up-to-date merging management information to produce virtual package (step S98).If judge whether fixed (step S97=is not), then only use original BD-ROM to carry out reset (step S94).If S96 does not detect mistake in step, use the virtual package that produces to carry out reset (step S99).Typical fault comprises the mistake in the up-to-date merging management information and does not have data stream of quoting from playlist etc.

According to present embodiment, by being kept at, previous merging management information merges in the management information file, and can use the resident applications of legacy version from replay device that merges management information to produce virtual package with reference to the content utilization that merges management information file.If during producing virtual package, mistake occurs, can avoid described problem as alternative course of action by the legacy version that produces virtual package.

Embodiment 4

Present embodiment relates to a kind of method, and this method is used for specifying the valid period of virtual package and only uses virtual package to carry out in valid period and reset when java application request virtual package is upgraded.

Figure 39 has shown appointed valid period when the request virtual package is upgraded.Java application is specified the content ID of the additional content that is used to merge and is used for the valid period of the use of virtual package.For example, if the user wants to be withdrawed from and only use then original BD-ROM play content as the virtual package play content up to CD after the heavy cartridges CD, be that effectively value is designated the independent variable when java application request virtual package is upgraded by indication virtual package till withdrawing from then to CD.

Figure 40 is that the loading from BD-ROM (or replay device restart) about present embodiment is up to the process flow diagram of the treatment scheme of resetting.Virtual file system unit 38 is at first checked the CD ID (step S101) of the BD-ROM that is loaded, read merging management information file (step S102), and judge whether to exist merging management information (step S103) corresponding to the CD ID of the BD-ROM that is loaded.If judge whether fixed (step S103=is not), then only use original BD-ROM to carry out reset (step S104).If judge it is sure (step S103=is), then virtual file system unit 38 judges that the corresponding management information that merges is whether in valid period (step S105).If no longer valid, then deletion is corresponding merges management information (step S106), and only uses original BD-ROM to carry out reset (step S104).If still effective, then merge management information accordingly and be used to produce virtual package (step S107), and use virtual package to carry out reset (step S108).

It should be noted that as the application of present embodiment and also can expect wherein the mode that Java pattern virtual package is only produced.If when only specifying the Java pattern when the java application request produces virtual package, when the transition that exists from the DVD-like pattern to the Java pattern, virtual file system unit 38 produces virtual package and transforms to the Java pattern then.On the contrary, when the transition that exists from the Java pattern to the DVD-like pattern, virtual file system unit 38 transforms to the DVD-like pattern in the cancellation virtual package and after being returned to original BD-ROM.

According to present embodiment, the valid period that might use virtual package specify to reset, only allow to use a virtual package (in case promptly BD-ROM is withdrawed from regard to forbidden virtual package) to reset and produce thus and have the virtual package that term of life limits.

It should be noted that in the present embodiment valid period is designated when the request virtual package is upgraded, valid period is also can be after loading BD-ROM designated during request generation virtual package.

Embodiment 5

Be specific descriptions below about the authority of the invokes application of the step S23 in Figure 25 of embodiment 1.Particularly, present embodiment relates to the method for refusal from the virtual package update request of unauthorized java application.

Figure 41 has shown the permission request file that is used to screen the virtual package update request.As mentioned above, carrying out virtual package on from the basis of the update request of java application upgrades.Yet,, be allowed to the danger that exists CD content illegally to be upgraded owing to check the playback of the video clipping that restriction is changed or only can checks under certain conditions when on from the basis of the request of unauthorized java application, carrying out when upgrading.Given this, upgrading according to the virtual package of present embodiment only can be by the java application request with renewal permission, and described renewal permission is the information that shows that the permission of request renewal has been allowed.Content by the check permission request file corresponding with the java application of issue request judges whether to have the renewal permission.Particularly, class loaders is according to the function of the content constraints java application of each permission request file.For example, if the renewal property value in the permission request file is " very " then handle update request, if be " vacation " then refuse.

Figure 42 has shown the restrict access of forcing on the catalogue of the local storage that is used for merging.If the content of the catalogue that is used to merge is by unauthorized java application change, even the danger that the screened content that also has a virtual package of update request is illegally changed.Given this, also on the basis of the content of each permission request file restriction to the permission of local memory access.For example, if the read and write community value in the permission request file all is " very ", the file that downloaded contents can be written into and store can be read and edit.Yet, will have one of read and write community or both java applications, or not have on the java application of permission request file and force the file access restriction for the permission request file of " vacation ".

According to present embodiment, can prevent that the unauthorized java application from upgrading the content of the catalogue in virtual package and the change local storage.

Be to use permission request file to limit the object lesson that virtual package is upgraded below.Consider an example, wherein the catalogue in the local storage is assigned to the specific supplier of cinematographic work.Particularly, suppose to be stored in simultaneously in the local storage and on the BD-ROM by the content that A operating room, B operating room and C company provide.Here, C company is the supplier of digizine.During content in merging local storage and BD-ROM, if for example B operating room content that is provided and the content merging that the A operating room is provided will go wrong.Given this, only permit the renewal permission (be in the permission request file renewal property value be set to " very ") of C company, allow to make various services available thus.A operating room and B operating room only can merge their content.

Embodiment 6

Present embodiment relates to a kind of method, and this method is used for upgrading virtual package at java application under the situation of operating on a plurality of titles during title changes.

Figure 43 has shown that its life cycle is limited to the java application of single title and the java application that its life cycle continues a plurality of titles.The life cycle of java application is shown in application management information, and module management 33 is according to the beginning and the end of this application management information management java application.Java application comprises those application programs (being called as " title binding application program " hereinafter) that only exist and those application programs (being called as " title is binding application program not " hereinafter) that can exist on a plurality of titles in the title that they begin.Application management information comprises the title number, application program ID and show the information that specific java application is whether bound.

In application management information shown in Figure 43, for example, java application #1 is bound and java application #2 does not bind in title #1.Module management 33 stops binding Java application program #1 together with the end of title #1.On the other hand, after title #1 finishes, allow the java application #2 that does not bind to survive, and make the decision that whether stops this application program according to the application management information of next title.Because the example of the application management information among Figure 43 shows java application #2 and can exist in title #1 and title #2 simultaneously, therefore allows this application program to survive at the transition period from title #1 to title #2.Yet because java application #2 is title binding in title #2, so module management 33 stops application program together with the end of this title.

Figure 44 has shown do not binding the processing of carrying out on the application program of title during title changes when the renewal virtual package.As shown in Figure 43, can be in title before title changes and title afterwards simultaneous title not binding application program during the title variation, work on.Yet, if the request virtual package upgrade, comprise title not all application programs of binding application program during title changes, be terminated.After upgrading virtual package, title not binding application program is restarted with the title binding application program that belongs to next title then.

Figure 45 is a process flow diagram of considering not bind the title change process of title application program.When title is reset beginning (step S111), virtual file system unit 38 at first judges at current title playback duration whether upgrade (step S112) from java application request virtual package.If judge it is sure (step S112=is), then virtual file system unit 38 is carried out to upgrade and is prepared (step S113).When title change to take place (step S114), virtual file system unit 38 is judged update request whether processed (step S115).If judge it is sure (step S115=is), stop comprising not all application programs (step S116) of binding application program of title, and upgrade virtual package (step S117).After changing, title plays next title (step S118) then.If also be not requested or also not processed in the S115 update request if upgrade in step S112 virtual package, then module management 33 only stops title binding application program (step S119) when title changes generation.

Because present embodiment guarantees that all application programs are terminated at the reproducting periods of virtual package, therefore still be retained in the high-speed cache according to reference or new file is present in the high-speed cache with ancient deed, might prevent the loss of any continuity after upgrading finishing virtual package old renewal preceding document.

It should be noted that if can after the request virtual package is upgraded, take place working when title changes at the java application that exists on a plurality of CDs (" CD is binding application program not "), upgrade by treating virtual package in the mode identical with the disc variations operation, CD not binding application program can work on and can not be forced to stop.

It is also to be noted that module management 33 can be according to finishing the application management information of upgrading after the virtual package renewal after the title variation takes place, the not beginning and the end of binding application program of management title, and can not stop not binding application program of title at reproducting periods.In this case, before renewal is finished, make title not binding application program with reference to the virtual package before upgrading.

Embodiment 7

The virtual package that present embodiment relates to after the INDEX.BDMV file change is upgraded.In case receive the virtual package update request from java application, virtual file system unit 38 confirms that the INDEX.BDMV file is present in the catalogue that is used for merging.If the INDEX.BDMV file exists, virtual file system unit 38 reads the INDEX.BDMV file for preparing to upgrade.Existing then INDEX.BDMV file is disabled and new INDEX.BDMV file comes into force.If for example the resident applications of BD player is carried out title search or java application is gathered heading message, before changing, uses title this new INDEX.BDMV file.In other words, give advance notice after upgrading header syntax java application and user makes and might prevent that title is changed to the title or the title that will stop to exist and changes to unexpected title after renewal.

Figure 46 is the process flow diagram that the virtual package after the INDEX.BDMV file change is upgraded.At first, when play title in the Java pattern (step S121), virtual file system unit 38 judges whether java application has asked virtual package to upgrade (step S122), and if asked, then virtual file system unit 38 receives request and carries out to upgrade and prepare (step S123).When whether checking file and bibliographic structure be correct, virtual file system unit 38 judged whether the INDEX.BDMV file exists (step S124).If the INDEX.BDMV file exists, then judging whether (step S126) before title takes place to be called, virtual file system unit 38 makes existing INDEX.BDMV file is invalid and make new INDEX.BDMV file come into force (step S125).With reference to the INDEX.BDMV file that in step S125, comes into force from the BD player resident applications or carry out title from java application and change.Virtual file system unit 38 is carried out and is upgraded (step S127) when title changes generation.

Thereby, do not upgrade although before the title variation takes place after the update request, do not carry out virtual package, before title changes, new INDEX.BDMV file can be used.This means after update request, will before title changes generation, change at the header list that shows during the title search.

Because the user selects title based on the header list that changes then, therefore can prevent the mistake that causes by the title of selecting after upgrading, to stop to exist.Thereby can during title changes, upgrade virtual package and can not go wrong, even because renewal has changed header syntax.

It should be noted that the virtual package renewal that after restarting the BD player, to carry out after the INDEX.BDMV file change.

Modification

More than described about replay device of the present invention based on preferred embodiment, although the present invention is not limited to these embodiment certainly.

About its only function is that the replay device of playing recording medium has been described above embodiment, although the present invention is not limited to this.For example, the present invention can be the record/playback apparatus with record and playback.

File can be placed in the local storage that uses any kind structure, as long as clearly illustrated with the corresponding relation of file on the BD-ROM that is used to merge.

In above embodiment, Java (registered trademark) is used as the programming language of virtual machine, although also can use the programming language except Java, such example comprises Perl Script, ECMA Script and B-Shell etc., it uses with UNIX (registered trademark) operating system.

About the replay device of playing BD-ROM above embodiment has been described, although but certainly under situation about being recorded in as the necessary data on the BD-ROM that describes among the above embodiment on the wright photo record medium, realize and above identical effect.

And, certainly as above embodiment in necessary data on the BD-ROM that describes be recorded under the situation on the portable recording medium except optical recording media (for example SD card, compact flash etc.) and realize and above identical effect.

Industrial usability

Consist of replay device of the present invention can be in manufacturing industry through the campsite, constantly and repeatedly manufactured. This replay device is applied to especially about the film of video content product and consumer appliance industry.

Claims (2)

1. a limit and executory application program are play the replay device of digital stream in interlock, limit mutually, and described replay device comprises:

Assure the reason unit, combination is recorded in file and the file on the described re-writable recording medium of being recorded in from being recorded in that merging management information on the re-writable recording medium quotes on the read-only recording medium, thereby generation package informatin, and before generating described package informatin, will become read-only from the file that the employed merging management information of the generation of described package informatin is quoted;

Selected cell, but be used for detecting a plurality of play title from described package informatin, and select one of them as current title;

The Java platform is used to carry out and the relevant application program of described current title; And

The playback Control Engine, be used for indicating according to described current title and be included in playlist information in the described package informatin, the playback of control figure stream;

The storage and the status register of relevant parameter of resetting; And

Back-up registers, wherein

When performed described application program appointment is recorded in new merging management information on the described re-writable recording medium, different with the employed merging management information of the generation of described package informatin, ask described when assuring the reason unit and carrying out the renewal of package informatin of described generation thus

The described reason unit of assuring,

Before upgrading described package informatin, if described new merging management information is effective, then will quote from the new merging management information of described appointment, be recorded in file on the described re-writable recording medium become read-only, and,

Selection at the new current title that carries out owing to described selected cell, make the playback Control Engine stop the digital stream playback time that carries out according to the playlist information of indicating in the described current title, combination is recorded in the file on the described read-only recording medium and is recorded in the read-only file that changes on the described re-writable recording medium from what above-mentioned new merging management information was quoted, generate new package informatin, and

When carrying out the selection of new current title by described selected cell, carry out stored parameters in the described status register is transferred to the processing of described back-up registers,

Under the situation of upgrading described package informatin, the described back-up registers of initialization.

2. a playback method is used for replay device, and this replay device possesses the status register and the back-up registers of the storage parameter relevant with playback, and digital stream is play in interlock, limit mutually with executory application program in the limit, and described playback method comprises:

Package informatin generates step, and combination is recorded in file and the file on the described re-writable recording medium of being recorded in from being recorded in that merging management information on the re-writable recording medium quotes on the read-only recording medium, thereby generates package informatin;

Attribute change step before generating described package informatin, will become read-only from the file that the employed merging management information of the generation of described package informatin is quoted;

Select step, but be used for detecting a plurality of play title, and select one of them as current title from described package informatin;

Treatment step is used to carry out and the relevant application program of described current title; And

The playback controlled step, be used for indicating according to described current title and be included in playlist information in the described package informatin, the playback of control figure stream, wherein

Specify when performed described application program to be recorded in new merging management information on the described re-writable recording medium, different with the employed merging management information of the generation of described package informatin, when asking the renewal of package informatin of described generation thus,

Before upgrading described package informatin, if the new merging management information of described appointment is effective, then, will become read-only from the new merging management information of described appointment file that quote, that be recorded on the described re-writable recording medium by described attribute change step, and

In selection owing to the new current title in the described selection step, make the playback controlled step stop the digital stream playback time that carries out according to the playlist information of indicating in the described current title, generate in the step at described package informatin, combination is recorded in the file on the described read-only recording medium and is recorded in the read-only file that changes on the described re-writable recording medium from what above-mentioned new merging management information was quoted, generate new package informatin

When carrying out the selection of new current title by described selection step, arrive described back-up registers with what store in the described status register with the relevant parameter transition of resetting,

Under the situation of upgrading described package informatin, the described back-up registers of initialization.

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