JP4594766B2 - Authoring system, program, authoring method. - Google Patents

Description

   The present invention belongs to the technical field of authoring technology for optical disks.

  Authoring is the task of determining the format of the application layer of the optical disc when creating the master disc of the optical disc. Information having a format determined by authoring is referred to as volume configuration information, and includes a digital stream compressed and encoded in accordance with the MPEG standard and a scenario for this digital stream. The process of determining volume configuration information when creating an optical disc master is called authoring. Conventional authoring has been targeted at read-only DVDs (generally called DVD-Video). However, in recent years, how to author for a read-only Blu-ray Disc (hereinafter referred to as BD-ROM), which will appear in the near future, has become a major concern. Although the distribution of movie content using BD-ROM has greater advantages than DVD-Video distribution, DVD-Video is overwhelmingly superior in terms of the level of establishment and recognition in society. Even though BD-ROM has appeared, it is unlikely that the distribution of DVD-Video will follow its decline. If the existing DVD-Video distribution will continue to be alive, the production studio must assume the BD-ROM distribution in addition to the existing DVD-Video distribution. There is a risk of doubling the production studio's burden, as it requires double effort to distribute one movie content.

As a technique for creating BD volume configuration information from DVD volume configuration information, there is a prior art described in the following patent document.
International Publication No. W0 2005/002232 A2 Publication

  The above-described prior art basically creates BD volume configuration information after completion of DVD volume configuration information, and there is a problem that the completion of BD volume configuration information is delayed. A possible idea is to reuse the DVD volume configuration information. This “reuse” means copying the semi-finished version without waiting for completion of the DVD volume configuration information, making this copy the initial version of the BD volume configuration information, and editing this initial version. BD volume configuration information is created.

  However, since the level of completeness of the volume configuration information in DVD-Video authoring is not clear, it is not possible to confirm playback at the DVD-Video authoring stage even for components that have already been confirmed to be normal playback. There was a repetition. The time required for playback confirmation is 30 minutes, 1 hour, etc., depending on the playback time of the movie work. If many production staff repeat reproduction confirmation, the loss of work time due to duplication confirmation will be significant. As a result, the number of man-hours for creating BD-ROM authoring becomes the same as the man-hours for DVD-Video authoring, and there is a problem that the merit of reusing DVD volume configuration information is lost.

  An object of the present invention is to provide an authoring system capable of efficiently reusing volume configuration information created for one optical disc in an environment for developing volume configuration information for two types of optical discs in parallel. It is to be.

  In order to achieve the above object, an authoring system according to the present invention includes first creation means for creating volume configuration information for a first optical disc, and volume configuration information for a first optical disc that is in an incomplete state. A copy of the volume configuration information is obtained by copying, and a second creation means for creating volume configuration information for the second optical disc by performing editing processing on the copy is provided. The volume configuration information in the status has status information indicating whether or not the content confirmation by the user has been completed for each component of the volume configuration information, and the second creating means performs the editing process when the volume configuration information It is characterized by displaying the individual components in the replica of No. 1 in a manner based on the state information.

  Since whether or not normal reproduction is confirmed in the volume configuration information is set for each component, normal reproduction is confirmed when this volume configuration information is copied and used as the initial version of the second optical disc. You can see at a glance which ones are. Therefore, it is possible to save work for components that are common to the first optical disc and the second optical disc and have been confirmed to be normally reproduced. By omitting the work, the complexity of the work is reduced. Therefore, the work efficiency can be increased by the above-described reuse.

(First embodiment)
Hereinafter, an embodiment of an authoring system according to the present invention will be described. First, a usage pattern of the authoring system according to the present invention will be described. The authoring system according to the present invention is used in the production process of DVD-Video and BD-ROM. FIG. 1 is a flowchart showing a DVD-Video and BD-ROM production process. A series of work processes for distributing movie contents by DVD are a planning process (step S101) for determining what kind of scenario the disc is to be played back, and a material creation process (step S102) for creating materials such as moving image recording and audio recording. ), Scenario creation step (step S103) for creating DVD volume configuration information from the scenario created in the planning step, and a material encoding step for encoding each of the video material, audio material, and sub-video material to obtain an elementary stream (Step S104), a multiplexing process for interleaving and multiplexing a plurality of elementary streams and converting them into one digital stream (Step S105), creating various information based on the DVD volume configuration information, and creating a scenario And digital streams that conform to the DVD format. The matting process (step S106), the emulation process (step S107) to check whether the authoring work result is correct by playing back the volume image, the DVD-Video master is created, pressed, the DVD -The press process (step S108) which completes Video is included.

  A series of work steps for distributing movie contents by BD-ROM includes a scenario creation step (step S203) for obtaining BD volume configuration information, encoding each of video material, audio material, and sub-video material, Obtaining material encoding step (step S204), a multiplexing step of interleaving and multiplexing a plurality of elementary streams and converting them into one digital stream (step S205), BD volume configuration information, scenario and digital stream as BD -Formatting process to adapt to the ROM format (Step S206), Emulation process (Step S207) to confirm whether the authoring work result is correct by playing back the volume image, Create BD-ROM master, Press to complete the BD-ROM And a pressing step (step S208).

A characteristic of these processes is step S201, in which DVD volume configuration information in a semi-finished state (DVD volume configuration information of version 0.x) is copied and reused as version 0.1 of BD volume configuration information. is there. The purpose of this application is to shorten the production period of the BD volume configuration information by this reuse.
Of these steps, steps S103 to S107 are called DVD-Video authoring, and steps S203 to S207 are called BD-ROM authoring. These DVD-Video authoring and BD-ROM authoring can be executed by the system shown in FIG.

  FIG. 2 is a diagram illustrating an internal configuration of the authoring system. As shown in the figure, the authoring system includes an input device 1, an encoding device 2, a server device 3, a material storage 4, a DVD configuration information storage 5, a BD configuration information storage 6, a multiplexer 7, a scenario converter 8, a formatter 9, and a multiplexer 8. , A scenario converter 11, a formatter 12, client devices 21 to 23, and client devices 25 to 27.

The input device 1 loads a video cassette containing HD images and SD images, reproduces the video cassette, and outputs a reproduction signal to the encoding device 2.
The encoding device 2 encodes the reproduction signal output from the input device 1 to obtain elementary streams such as a video stream and an audio stream. The elementary stream obtained in this way is output to the server device 3 through the LAN and written to the material storage 4 in the server device 3.

The server device 3 includes three drive devices: a material storage 4, a DVD configuration information storage 5, and a BD configuration information storage 6. FIG. 4 is an enlarged view showing the internal configuration of the server device 3.
The material storage 4 is a built-in disk device of the server device 3, and sequentially stores elementary streams obtained by encoding of the encoding device 2. The material storage 4 has two directories such as an HDstream directory and an SDstream directory, and elementary streams obtained by encoding HD images are written in the HDstream directory. The elementary stream obtained by encoding the SD image is written in the SDstream directory. FIG. 3A shows writing to the material storage 4 when an SD image and an HD image are obtained by telecine-converting the projection film. An SD image and an HD image obtained by performing tele-cine conversion on the film are encoded by the encoding device 2 to become an elementary stream. Of the elementary streams obtained in this way, the one corresponding to the HD image is written in the HDstream directory. The one corresponding to the SD image is written in the SDstream directory.

  FIG. 3B shows writing to the material storage 4 when an SD image is obtained by an SD camcorder and an HD image is obtained by photographing with an HD camcorder. An HD video cassette is a recording medium on which HD images are recorded. The HD video cassette records HD images taken by an HD camcorder. Interviews and interviews with film performers are supplied to the system in the form of such HD video cassettes. SD video cassettes record SD images taken with an SD camcorder. The so-called making video is supplied to the system in the form of such SD video. These SD images and HD images are encoded by the encoding device 2 to become elementary streams, and are written in the HDstream directory and SDstream directory. Cut scenes, interview videos, and making videos have different material types, such as HD images, HD images, and SD images. Therefore, in BD-ROM authoring, the material in DVD-Video authoring may be used as it is, or may be replaced with another material.

The DVD configuration information storage 5 is a drive device that stores DVD volume configuration information. The DVD configuration information storage 5 is a so-called “full access” drive device that can be freely read and written, and the processing results by the client devices 21 to 23 are obtained on the DVD configuration information storage 5. .
The BD configuration information storage 6 is a drive device that stores BD volume configuration information. The BD configuration information storage 6 is a so-called “full access” drive device that can freely read and write, and processing results by the client devices 25 to 27 are obtained on the BD configuration information storage 6. .

The multiplexer 7 reads out the elementary stream stored in the HDstream directory and SDstream directory in the material storage 4 and specified by the DVD volume configuration information, and multiplexes them according to the DVD volume configuration information. Then, a Clip that is a multiplexed stream is obtained.
The DVD scenario converter 8 obtains a DVD-Video scenario by converting the DVD volume configuration information stored in the DVD configuration information storage 5 into a DVD-Video application format.

The formatter 9 adapts the Clip obtained by the multiplexer 7 and the DVD-Video scenario obtained by the scenario converter 8 to the application layer format of DVD-Video.
The multiplexer 10 reads out the elementary stream stored in the HDstream directory and SDstream directory in the material storage 4 and specified by the BD volume configuration information, and multiplexes them according to the BD volume configuration information. Then, a Clip that is a multiplexed stream is obtained.

The scenario converter 11 obtains a BD scenario by converting the BD volume configuration information stored in the BD configuration information storage 6 into a BD-ROM application format.
The formatter 12 adapts the Clip obtained by the multiplexer 10 and the BD scenario obtained by the scenario converter 11 to the application layer format of BD-ROM.
The client devices 21 to 23 are operated by a producer in charge of DVD-Video authoring, and create DVD volume configuration information in accordance with an operation from the user.

The client devices 25 to 27 are operated by a producer in charge of BD-ROM authoring, and create BD volume configuration information in accordance with an operation from the user.
The above is the configuration of the system. Next, DVD volume configuration information and BD volume configuration information will be described. The internal configurations of the DVD volume configuration information and the BD volume configuration information are as shown in FIG. FIG. 5 is a diagram showing a common configuration of DVD volume configuration information and BD volume configuration information. As shown in the figure, the volume configuration information includes a plurality of Title configuration tables (Title 1, 2, 3 configuration tables), a plurality of PlayList configuration tables (PlayList 1, 2, 3, 4, 5, 6 configuration tables), and a plurality of Clips. Consists of a configuration table (Clip 1, 2, 3, 4 configuration table).

These components such as Title, PlayList, and Clip are abstract representations of the components of the DVD-Video volume image and BD-ROM volume image. Considering DVD-Video as a target, Clip corresponds to VOB in DVD-Video. PlayList corresponds to PGC in DVD-Video, and Title corresponds to VTS_TT in DVD-Video.
On the other hand, when considering BD-ROM as a target, Clip corresponds to AVClip in BD-ROM. The PlayList corresponds to the PlayList on the BD-ROM, and the Title corresponds to the Title on the BD-ROM.

  FIG. 6A shows an example of the internal configuration of the Clip configuration table. In this figure, the Clip configuration table includes video stream information, audio stream information (audio stream information 1 and 2), and a confirmed flag. The video stream information includes a material name (video) and link information (../../clip.v). The link information here is a file path indicating a file in any directory in the material storage 4.

  The audio stream information includes the material name (audio 1, audio 2), link information (../../Clip1-1.a, ../../Clip1-2.a) in the database, and offset (offset1 , offset2). The link information is a file path indicating the location of the audio stream in the material storage 4. The offset indicates the playback start time of the audio stream with reference to the playback start time of the video stream.

  FIG. 6B shows an example of the internal configuration of the PlayList configuration table. A PlayList is a playback unit defined by assigning a playback order to a plurality of Clips. The PlayList configuration table (PlayList1 configuration table) includes an array of multiple clip names (Clip1, Clip2), playback start points (In1, In2) and playback end points (Out1, Out2) in each Clip, and confirmed flags. . The PlayList configuration table (PlayList2 configuration table) includes an array of multiple Clip names (Clip3, Clip4), playback start points (In3, In4) and playback end points (Out3, Out4) in each Clip, and confirmed flags. .

  FIG. 6C shows an example of the internal configuration of the Title configuration table. The Title configuration table includes a plurality of PlayList names and a confirmed flag. A Title is a playback unit including one or more PlayLists, and there are two types, FirstPlay Title and other general Titles (Title1, 2, 3). The Title configuration table in FIG. 6C corresponds to the internal configuration of the latter general Title. As shown in FIG. 6C, the Title1 configuration table includes a plurality of PlayList name arrays (PlayList1, 2) and confirmed flags. The Title2 configuration table includes a plurality of PlayList name arrays (PlayList3,4,5) and a confirmed flag, and the Title3 configuration table includes a description of one PlayList name (PlayList6) and a confirmed flag. The former FirstPlay Title is a title that displays a menu of the entire optical disc (called a volume menu for DVD-Video and a top menu for BD-ROM) when the optical disc is loaded. The Title configuration table corresponding to the FirstPlay Title describes one or more PlayLists, and the PlayList configuration table corresponding to the PlayList describes the Clip name of the Clip that displays the menu of the entire optical disc. Yes.

  FIG. 6D shows the meaning of the confirmed flag. The confirmed flag is set to “0” to indicate that the Clip configuration table, PlayList configuration table, and Title configuration table including the confirmed flag are unconfirmed. On the other hand, the confirmed flag is set to “= 1” to indicate that the Clip configuration table, PlayList configuration table, and Title configuration table including the confirmed flag have been confirmed. Of the Title configuration table, PlayList configuration table, and Clip configuration table that make up the volume configuration information, the more the confirmed flag is set to “= 1”, the closer this volume configuration information is to completion. Is interpreted. Conversely, the more configuration tables with the confirmed flag = “0”, the more the volume configuration information is interpreted as being farther from completion. The degree of completeness of the volume configuration information is expressed by a version number.

  The left side of FIG. 7 shows the level of completeness in the DVD volume configuration information based on the version number. In this figure, it can be seen that the version number increases by 0.1 units, such as “0.1”, “0.2”, “0.3”... “0.7”. If the version number becomes “1.0”, the volume configuration information is interpreted as completed. It is the above-mentioned confirmed flag that defines the version number. That is, the more configuration tables with the confirmed flag = 1, the closer the version number of the volume configuration information is to 1. The right side of FIG. 7 shows version update in the BD-ROM volume configuration information. The version number of the BD-ROM volume configuration information also starts from 0.1 and increases in units of 0.1, such as “0.1”, “0.2”, “0.3”... “0.7”. Version0.1 in the BD volume configuration information means the youngest number in the BD volume configuration information. Users do not create BD volume configuration information version 0.1 from nothing. The semi-finished version version 0.x of the DVD volume configuration information is copied and used as version 0.1 of the BD volume configuration information. Since the BD volume configuration information is created based on DVD-Video version 0.x, the BD volume configuration information creation man-hour is shorter than the DVD volume configuration information creation man-hour.

Here, Version 1.0 of DVD volume configuration information is not used as version 0.1 of BD volume configuration information because waiting for completion of DVD volume configuration information delays completion of BD volume configuration information. Therefore, the version 0.x of the DVD volume configuration information is reused to make the version 0.1 of the BD volume configuration information.
The above is a diagram showing the common configuration of the BD volume configuration information and the DVD volume configuration information. Next, the internal configuration of the client devices 21 to 23 will be described. The client devices 21 to 23 have a common internal configuration shown in FIG.

As shown in the figure, the client devices 21 to 23 are typical computers having a display device 30, a pointing device 31, a CPU 32, a RAM 33, and a hard disk 34. In this figure, what is characteristic is software (an operating system 35, a player simulator 36, and an editing application 37) stored in the hard disk 34.
(Operating system 35)
The operating system 35 has a browser function for displaying the logical structure of the DVD volume configuration information stored in the material storage 4 and the DVD configuration information storage 5 by accessing the material storage 4 via the LAN. FIG. 9 is a diagram showing a GUI screen displayed on the display device 30, and represents the logical structure of the DVD volume configuration information. FIG. 10 shows GUI parts that constitute the display example of FIG. The GUI parts shown in FIG. 9 are “node” that represents a component of volume configuration information such as Clip, PlayList, and Title, “vertical axis” that represents a hierarchy in volume configuration information, and which node is each node. It is expressed using three types of GUI parts called “links” that indicate the attribution relationship.

  The logical structure of the DVD volume configuration information is expressed by connecting a plurality of nodes through links. FIG. 11 is a diagram showing a hierarchy in the logical structure of the volume configuration information. The vertical axis in the figure symbolically shows the hierarchy in the logical structure of the volume configuration information. The four vertical axes in the figure represent the disc level, Title level, PlayList level, and Clip level, respectively. By connecting nodes to these vertical axes, the logical structure of the volume configuration information is expressed. The logical structure shown in this figure symbolizes the logical structure of DVD-Video and the logical structure of BD-ROM.

(Player simulator 36)
The player simulator 36 performs a playback simulation of the DVD playback device on the client devices 21 to 23. The reproduction simulation includes Clip composition table reproduction, PlayList composition table reproduction, and Title composition table reproduction. Clip configuration table playback is a method of performing a clip playback simulation by reading an elementary stream from the material storage 4 according to link information described in the Clip configuration table and playing it on the client devices 21 to 23. It is.

PlayList configuration table playback is a simulation of PlayList playback by executing Clip configuration table playback for each Clip configuration table described in the PlayList configuration table. Here, the object of the Clip composition table is from the reproduction start point to the reproduction end point associated with each Clip in the PlayList composition table.
“Title composition table reproduction” is a simulation of Title reproduction by executing PlayList composition table reproduction for each PlayList described in the Title composition table. By executing the above simulation on the client device 21 to the client device 23, the contents can be confirmed for each component of the volume configuration information such as Clip, PlayList, and Title.

(Editing application 37)
The editing application 37 edits the Clip configuration table, the PlayList configuration table, and the Title configuration table stored in the material storage 4 based on a user operation. In the GUI image, if a node corresponding to Clip / PlayList / Title is double-clicked, a window for editing the Clip composition table / PlayList composition table / Title composition table corresponding to the node is opened. Then, in accordance with the user operation on the window, the editing process for the Clip configuration table / PlayList configuration table / Title configuration table is executed.

(Edit for Clip composition table)
First, editing of the clip configuration table will be described.
FIG. 12 is a diagram showing a window for editing the Clip configuration table. In this figure, the window includes a clip configuration table GUIct1, a playback control panel ct2, a synchronization adjustment panel ct3, and a verification state menu ct4.

The “Clip configuration table GUIct1” receives an editing operation on the Clip configuration table from the user.
FIGS. 13A, 13B, and 13C are examples of editing operations on the Clip composition table GUI. FIG. 13 (a) shows configuration addition editing. In the clip configuration table, there is a highlight in the link information for one elementary stream, and if the user selects the item “create new”, a new column is added to the clip configuration table. By describing the link information for the elementary stream in this field, the number of components of the Clip increases.

FIG. 13B shows deletion editing. If the user pulls out a pull-down menu and selects “Delete” in a state where a highlight exists in any column in the Clip configuration table, one component in the Clip configuration table is deleted.
FIG. 13C shows editing of the configuration change by the window. If the user performs a keyboard operation in a state where a highlight exists in any column, a key cursor appears in that column. If the cursor is moved and the contents of the link information in the column are rewritten, the structure of the Clip will change. The above is the editing process for the Clip composition table GUI. Thereafter, the description of FIG. 12 is resumed.

  The “playback control panel ct2” accepts an operation for instructing the player simulator 36 to execute clip configuration table playback. FIG. 14 shows a playback video displayed when operating the playback panel. In this figure, when the playback button on the playback panel is double-clicked, Clip configuration table playback is performed. Then, the playback video appears in the window. With this Clip configuration table reproduction, it is possible to confirm on the client device whether the video and audio are synchronized or not.

  The “synchronization adjustment panel ct3” accepts an operation to increase or decrease the offset in the audio information in the Clip configuration table from the user. FIG. 15 shows a window displayed when the synchronization adjustment panel is double-clicked. The window in this figure has slide bars br1, 2 corresponding to the respective audio streams in the Clip configuration table. By moving the slide bar to the right, the offset in the audio configuration information is increased, and by moving the slide bar to the left, the offset in the audio configuration information is decreased. By using this synchronization adjustment panel to increase or decrease the offset of the audio stream, it is possible to eliminate the video / audio synchronization shift.

  The “verification state menu ct4” is a pull-down menu, and accepts an operation for changing the state of the configuration table from the unconfirmed state to the confirmed state, and an operation for changing the confirmed state from the confirmed state to the unconfirmed state. FIG. 16 is a diagram illustrating an operation on the verification state menu. If it is confirmed that there is no problem in the clip configuration table after adjustment by the synchronization adjustment panel, the user changes the verification state menu from unconfirmed to confirmed. By this operation, the confirmed flag in the clip configuration table changes from “0” indicating unconfirmed to “= 1” indicating confirmed as shown in FIG. If the confirmed flag for Clip1 of the DVD volume configuration information in the material storage 4 is updated to “= 1”, Clip1 is confirmed in the GUI screen as shown in FIG. 17B. Is displayed. The mode indicating that it has been confirmed is a mode with a triangle symbol.

If the same confirmed setting is performed on Clip2, Clip2 is also displayed in a manner indicating confirmed as in Clip1 (FIGS. 18A and 18B).
The above is the operation on the Clip composition table. Next, operations for the PlayList configuration table will be described.
(PlayList editing)
Next, PlayList editing will be described. FIG. 19A shows a window for editing the PL configuration table. In this figure, the window includes a PL configuration table GUIpt1, a playback control panel pt2, an In point setting button pt3, an Out point setting button pt4, and a verification state menu pt5.

“PL configuration table GUIpt1” executes an editing operation on the PL configuration table in accordance with the operation of the pointing device 31 by the user. Such editing operations include operations shown in FIGS. 13A, 13B, and 13C, that is, configuration addition, deletion editing, and component change.
The “playback control panel pt2” accepts an operation for causing the player simulator 36 to play the PlayList configuration table from the user.

  The “In point setting button pt3” accepts the setting of the In point in the Clip, that is, the playback start point. In other words, when editing the PlayList configuration table, there is a case where it is desired to play a part of the Clip on the PlayList instead of the entire Clip. In this case, the editing application 37 causes the player simulator 36 to reproduce the clip according to the PlayList configuration table, and accepts designation of the reproduction start point of the portion to be reproduced from the In point setting button. If the playback start point is designated, the playback start point is described in the PlayList configuration table.

The “Out point setting button pt4” accepts the setting of the Out point in the Clip, that is, the playback end point. More specifically, when a clip is played according to the PlayList configuration table, designation of the playback end point of the portion to be played back is accepted from the Out point setting button. If the playback end point is designated, the playback end point is described in the PlayList configuration table.
The “verification state menu pt5” is a pull-down menu, and accepts an operation for changing the state of the PlayList configuration table from the unconfirmed state to the confirmed state, and an operation for changing the confirmed state from the confirmed state to the unconfirmed state. If it is confirmed that there is no problem in the PL configuration table by reproduction through the reproduction control panel, the user can change the verification state menu from unconfirmed to confirmed. When the user selects the verification state menu, the editing application 37 determines whether or not the confirmed flags of all Clips constituting the PlayList configuration table are set to “= 1”. If the confirmed flag of all Clips is set to “= 1”, an operation for setting the verification state menu to confirmed is accepted (FIG. 19B). On the other hand, if there is even one clip with the confirmed flag = 0, an operation for setting the verification state menu to confirmed is not accepted. If an operation for setting the verification status menu to “confirmed” is performed, the confirmed flag in the PL1 configuration table changes from “0” indicating unconfirmed to “= 1” indicating confirmed. If the confirmed flag for PlayList1 in the DVD volume configuration information is updated to “= 1”, PlayList1 is displayed on the GUI screen in a manner indicating that it has been confirmed as shown in FIG. The mode indicating that it has been confirmed is a mode with a triangle symbol. The above is the editing for the PlayList configuration table.

(Edit Title)
Next, editing on the Title composition table will be described. Like the PL composition table, the Title composition table can be edited via the window. FIG. 20 is a diagram showing a Title configuration table configuration table GUI. This window includes a Title configuration table GUItt1, a playback control panel tt2, and a verification status menu tt3.

The “Title configuration table GUItt1” executes an editing operation on the Title configuration table in accordance with the operation of the pointing device 31 by the user. Such editing operations include operations shown in FIGS. 13A, 13B, and 13C, that is, configuration addition, deletion editing, and component change.
The “reproduction control panel tt2” receives an operation for causing the player simulator 36 to perform reproduction corresponding to the Title configuration table.

  The “verification state menu tt3” is a pull-down menu, and accepts an operation for changing the state of the Title configuration table from the unconfirmed state to the confirmed state and an operation for changing from the confirmed state to the unconfirmed state. If it is confirmed that there is no problem in the Title configuration table by reproduction through the reproduction control panel, the user can change the verification state menu from unconfirmed to confirmed. When the user selects the verification state menu, it is determined whether or not the confirmed flags of all the PlayLists constituting the Title configuration table are set to “= 1”. If the confirmed flags of all the PlayLists are set to “= 1”, an operation for setting the verification state menu to confirmed is accepted. On the other hand, if there is at least one PlayList with a confirmed flag = 0, an operation for setting the verification state menu to confirmed is not accepted. By this operation, the confirmed flag in the Title configuration table changes from “0” indicating unconfirmed to “= 1” indicating confirmed.

  If the confirmed flag is set to “1”, the operation on the configuration table and the operation on the synchronization adjustment panel are locked. With this lock, easy modification of the confirmed configuration table can be avoided. Since the setting of the completed flag is not fixed, it can be changed later by a user operation, which is the editing process performed by the editing application 37.

  FIG. 21 is a diagram showing DVD volume configuration information of version 0.x. By performing the confirmation operation described above for Clip, PlayList, and Title, the DVD volume configuration information of version 0.x is clip configuration table with confirmed flag = 1, Clip with confirmed flag = 0. Configuration table, PL configuration table set to confirmed flag = 1, PL configuration table set to confirmed flag = 0, Title configuration table set to confirmed flag = 1, Confirmed flag = 0 set It will include the Title composition table.

  FIG. 22 is a flowchart showing the processing procedure of the editing application 37. Hereinafter, the details of the processing procedure of the editing application 37 will be described with reference to this flowchart. After displaying the DVD volume configuration information, the editing application 37 proceeds to a loop process consisting of steps S2 to S3. This loop process determines whether the cursor has been moved or double-clicked. If step S1 is Yes, the process of moving the highlight to another node is performed. As a result, the highlight moves between a plurality of nodes. If a double click is made in a state where a highlight exists in any node (Yes in step S3), the processing in steps S5 to S13 is executed. Steps S5 to S13 open a window for editing the component (Title / PlayList / Clip) corresponding to the node that has been highlighted (Step S5), and the loop processing of Step S6 to Step S7 Migrate to Step S6 is a determination as to whether an operation such as addition / editing / modification has been performed on the Clip composition table GUI or the synchronization adjustment panel. If so, processing such as addition / editing / modification is performed according to the user operation. Execute (Step S8). Step S9 defines conditions for executing processing such as addition / editing / modification, and determines whether or not the confirmed flag is “= 1”. If the confirmed flag is “= 1”, step S8 is skipped. On the other hand, when the confirmed flag = 0, step S8 described above is executed.

  When the user selects the confirmation setting menu (Yes in step S7), it is determined whether the user has set the confirmation setting menu to “confirmed” or “unconfirmed” (step S10). If it is set to confirmed, the confirmed flag is set to “= 1” (step S11). On the other hand, if unconfirmed, the confirmed flag is set to “= 0” (step S12). The details of the processing procedure by the editing application 37 have been described above.

This completes the description of the configuration of the client devices 21 to 23.
Next, the client devices 25 to 27 will be described. The editing operations by the client devices 25 to 27 include the following. For example, in the DVD volume configuration information, since all elementary streams are composed of SD images, it is necessary to replace them with HD images. Therefore, the file path in the clip configuration table is rewritten from one indicating an SD image to one indicating an HD image. By doing so, the Clip composition table indicates an HD image and becomes a Clip composition table for BD-ROM. It should be noted here that not all the components in the BD volume configuration information are HD images. The content such as the making video is an SD image even in the BD volume configuration information, and the component having only the SD image is a common component between DVD-Video and BD-ROM.

  Which component is common between BD-ROM and DVD-Video and which is different depends on the contents of the optical disc to be distributed. Therefore, it is impossible to automate such an operation, and the user must confirm and judge with his / her own eyes. Therefore, creation of BD volume configuration information based on DVD volume configuration information is in principle interactive editing with the user.

  FIG. 23 is a diagram illustrating a common configuration of the client devices 25 to 27. As can be seen, the common configuration of the client devices 25-27 is the same as that shown in FIG. Here, the client devices 25 to 27 are different from the client devices 21 to 23 in the handling of version 0.1 in the volume configuration information. In BD-ROM authoring, DVD volume configuration information version 0.x is treated as BD-ROM version 0.1. As shown in FIG. 21, the configuration table with the confirmed flag = 0 and the configuration table with the confirmed flag = 1 are mixed in version 0.x. Therefore, when this is displayed as version 0.1, the confirmed flag = The component set to 1 is displayed with a graphic indicating confirmation. Therefore, in BD-ROM authoring, it is possible to see how much DVD-Video authoring has progressed. For components that are common to DVD-Video and BD-ROM and have been confirmed by DVD-Video authoring, omit all work such as editing the configuration table and confirming normal playback. Can accelerate the progress of BD-ROM authoring.

  FIG. 24 is a flowchart illustrating a processing procedure of the editing application 37 in the client devices 25 to 27. This figure is the same as the flowchart of FIG. 22 except that step S15 is added before step S1. In this step S15, the editing application 37 obtains a copy by copying version 0.x of the DVD volume configuration information from the DVD configuration information storage 5 to the BD configuration information storage 6, and changes the file name of this copy. By doing so, the BD volume configuration information version is set to 0.1. If the version 0.1 of the BD volume configuration information is obtained in this way, the processing from step S1 to step S12 is performed. FIG. 25 is a diagram showing a display procedure of the editing application 37 when displaying the BD volume configuration information.

The flowchart of this figure is constituted by a triple loop process.
The first loop processing repeats the processing from step S23 to step S35 for all Titles on the disc (step S21, step S22).
The second loop process repeats the process from step S28 to step S35 for all PlayLists constituting an arbitrary Title (step S26, step S27).

The triple loop processing is to repeat the processing from step S33 to step S35 for all the clips constituting an arbitrary PlayList (step S31, step S32).
Of a plurality of Titles that can exist on the disc, one Title to be processed is defined as Titlei.
In the first loop processing, Titlei is displayed using the GUI component “node” (step S23), and it is determined whether the confirmed flag for this Titlei is “” = 1 ”(step S24). ) If “= 1”, a process of displaying a mark indicating the confirmation on the node is performed (step S25). By repeating this process for all titles, the titles are listed.

In the second loop process, the target PlayList is PLj.
In the second loop processing, PLj is displayed using the GUI component “node” (step S28), and it is determined whether the confirmed flag for this PLj is “= 1” (step S28). S29) If “= 1”, a mark indicating that it has been confirmed is displayed on the node (step S30). By repeating this process for all the PlayLists, the PlayList is listed.

  In the triple loop processing, the target Clip is set as Clipk. In the triple loop processing, the Clipk is displayed using the GUI component “node” (step S33), and it is determined whether or not the confirmed flag for this Clipk is “= 1” (step S34). ) If “= 1”, a process of displaying a mark indicating the confirmation on the node is executed (step S35). By repeating this process for all the clips, the clips are listed.

  With the above processing procedure, among the Title, PlayList, and Clip in the BD volume configuration information, those for which the confirmed flag is set to “= 1” are displayed with a symbol indicating confirmed. Will be. FIG. 26 is a diagram showing a GUI screen that appears when the processing procedure of FIG. 25 is executed for version 0.1 of the BD volume configuration information of FIG. With such a GUI screen, the user can intuitively determine which of the Title, PlayList, and Clip has been confirmed to be normally played. If what is confirmed to be normal playback is a common component between DVD-Video and BD-ROM, confirmation of normal playback can be omitted for such common elements, so reuse can be done efficiently. It can be carried out.

<DVD-Video volume image>
Next, the DVD-Video volume image generation process will be described.
The multiplexer 7 will explain how to multiplex a plurality of elementary streams. FIG. 27 is a diagram showing how multiplexing by the multiplexer 7 is performed. In the figure, the first level shows elementary streams stored in the material storage 4. The multiplexer 7 obtains an AVPack sequence by multiplexing the video stream and audio stream shown in the first row based on the Clip configuration table.

  The video stream in the first stage and the GOP in the second stage are divided by the multiplexer 7 and stored in a PES (Packetized Elementary Stream) packet sequence shown in the third stage. On the other hand, the audio stream located on the right side of the first stage is also divided into a plurality of parts by the multiplexer 2, and the divided part obtained by the division is stored in the PES packet sequence shown in the third stage. The multiplexer 7 divides the PES packet sequence storing individual GOPs into a plurality of pieces, interleaves and multiplexes them with the PES packets constituting the audio stream (tj2), and configures an AV pack sequence as shown in the fourth stage. . The AV pack train constructed in this way is called VOB.

  Next, the internal configuration of the DVD scenario converter 8 will be described in more detail. The DVD scenario converter 8 is realized by causing a computer to read and execute a program. FIG. 28 is a diagram functionally showing the internal configuration of the DVD scenario converter 8. As shown in the figure, the DVD scenario converter 8 includes a PGC information generation unit 51, an attribute information generation unit 52, an in-VTS search pointer generation unit 53, a VTS information generation unit 55, and a Video Manager generation unit 56. Since it is difficult to understand the internal configuration of the DVD scenario converter 8 with FIG. 28 alone, FIGS. 29 to 33 are cited for the description of the components of the DVD scenario converter 8.

  The PGC information generation unit 51 assumes that each Clip described in the PlayList configuration table corresponds to the VOB, and instructs the playback device to sequentially reproduce the VOB described in the PlayList configuration table. Is generated. On the other hand, assuming that each PlayList described in the Title configuration table corresponds to PGC information, link information is set in each PGC information so that the PGC information described in the Title configuration table is sequentially played back. To do. When the PGC information generation unit 51 generates PGC information based on the PlayList configuration table and Title configuration table shown in FIGS. 6B and 6C, PGC information # 1 and PGC information # 2 as shown in FIG. 29 are obtained. . PGC information # 1 instructs the playback device to play back VOB # 1 and VOB # 2 sequentially. The PGC information # 2 instructs the playback device to perform playback in the order of VOB # 3 and VOB # 4. In order to sequentially reproduce the PGC information # 1 and the PGC information # 2, the PGC information generation unit 51 sets link information with the PGC information # 2 as a link destination for the PGC information # 1. With this setting, VTS_TT # 1 including PGC information # 1 and PGC information # 2 is obtained.

The attribute information generation unit 52 generates attribute information for each VTS_TT. Since such attribute information is set in the encoding device 2 or the like as an encoding parameter when digitizing an analog signal, the attribute information generating unit 52 generates attribute information for each VTS_TT based on the encoding parameter.
The in-VTS Search Pointer generating unit 53 generates a Search Pointer by associating the PGC information described at the head of the Title configuration table with the Title number of the Title configuration table. With respect to the Title configuration table of FIG. 6C, the Search Pointer generating unit 53 in VTS generates a Search Pointer, whereby a Search Pointer as shown in FIG. 30 is obtained. This Search Pointer indicates the title number (“= 1”) of VTS_TT # 1 and the PGC number (“= 1”) of PGC information # 1 in association with each other.

  The VTS information generation unit 55 groups the same attribute information generated by the attribute information generation unit 52 among the PGC information and Serch Pointer constituting the VTS_TT to obtain VTS (Video Title Set) information. Then, by integrating the grouped VGC_TT PGC information, Search Pointer, and attribute information, VTS information for each VTS is obtained. FIG. 31 is a diagram showing VTS information obtained as a result of processing performed by the VTS information generation unit 55 on the DVD volume configuration information having the Title configuration table and the PlayList configuration table of FIGS. The one-dot chain line in the figure means Title. On the other hand, the broken line includes components that are made into one file in DVD-Video. It is assumed that VTS_TT # 1 to # 3 are obtained as a result of processing performed by the PGC information generation unit 51 based on the Title configuration table of FIG. The attribute information generation unit 52 generates attribute information for these VTS_TTs. If the attribute information about VTS_TT # 1 and the attribute information about VTS_TT # 2 are the same among the attribute information generated in this way, PGC information # 1, PGC information # 2 belonging to VTS_TT # 1, and VTS_TT PGC information # 3 and PGC information # 4 belonging to # 2 and the Search Pointer generated by the Search Pointer generating unit 53 in VTS are integrated into one to obtain VTS information # 1. Here, the attribute information generated by the attribute information generation unit 52 is converted into attribute information (VTS_V_ATR, VTS_A_ATR) for each VTS. On the other hand, if the attribute information of VTS_TT # 3 generated based on the Title configuration table # 3 is different from the attribute information of VTS_TT # 1 and VTS_TT # 2, PGC information # 6 belonging to VTS_TT # 3, attribute information, Collect Search Pointer and get VTS information # 2. With the above grouping, it becomes clear to which VTS each VTS_TT belongs.

  The Video Manager generation unit 56 generates a Video Manager based on the Title configuration table corresponding to FirstPlay Title. The Title configuration table corresponding to FirstPlay Title describes one or more PlayLists, and the PlayList configuration table corresponding to the PlayList includes Clips that constitute a menu for the entire optical disc (called a volume menu in DVD-Video). The clip name is described. The Video Manager generation unit 56 generates PGC information for reproducing the VOB corresponding to the menu clip, and obtains a Video Manager including the PGC information. Then, a Search Pointer that associates the button number in the volume menu, the VTS number to which each Title belongs, and each Title number is generated. 31 shows the Video Manager generated by the Video Manager generator 56. This Video Manager has a Search Pointer, and the VTS number and Title (TT) number are associated with the volume menu buttons by this Search Pointer. Therefore, each PGC information is guided from a button in the volume menu via two Search Pointers, Search Pointer in Video Manager and Search Pointer in VTS.

If such conversion is performed for all components of the DVD volume configuration information, a file layout as shown in FIG. 32 can be obtained.
FIG. 32 is a diagram showing a file system layout in a DVD-Video volume image. In this figure, a subdirectory called VIDEO_TS is formed under the Root directory.

  The VTS information shown in FIG. 32 is a file named “VTS_xx_x.ifo” and is placed in a subdirectory called VIDEO_TS. Here, xx is a VTS number, and x is a VTS information number. The VOB becomes a file named “VTS_xx_x.VOB” and is placed in a subdirectory called VIDEO_TS. Here, xx is the VTS number to which the VOB belongs, and x is the VOB number.

The clip that makes up the volume menu is a file named “VIDEO_TS.vob”, and the SerchPointer in VideoManager and the playback control information for volume menu playback are arranged as a file named “VIDEO_TS.ifo”. The The above is the generation of the DVD-Video volume image.
<BD-ROM volume image>
Next, a process for generating a BD-ROM volume image will be described.

  A description will be given of how a plurality of elementary streams are multiplexed by the multiplexer 10. FIG. 33 is a diagram illustrating a process of generating a TS packet sequence by the multiplexer 10. In the figure, the first to third tiers are the same as those in FIG. 27, and show a picture sequence, GOP division, and PES packet sequence, respectively. In the fourth stage, the multiplexer 10 multiplexes the PES packet sequence storing the GOP sequence with the PES packet sequence storing the audio stream (tj5 in the figure) to form a TS packet sequence. The MPEG2-TS format digital stream generated by such multiplexing is called AVClip.

  FIG. 34 is a diagram showing an internal configuration of the BD scenario converter 11. As shown in the figure, the BD scenario converter 11 includes a Clip information generation unit 61, a PlayList generation unit 62, a Movie Object generation unit 63, and an Index Table generation unit 64. Since it is difficult to understand the BD scenario converter 8 with only FIG. 33, FIGS. 35 to 36 will be cited for the description of the components of the BD scenario converter 8. FIG.

The clip information generation unit 61 includes a clip configuration table in the BD volume configuration information, attribute information of each elementary stream output from the input device 1, a GOP PTS (Presentation Time Stamp) and a PSN (Packet Serial Number) of the video stream. Based on the above, Clip information for each AVClip is generated.
The PlayList generating unit 62 assumes that each Clip described in the PlayList configuration table corresponds to each AVClip, and plays the PlayLIst information for instructing the playback apparatus to play back a plurality of AVClips described in the PlayList configuration table. Generate.

  Assuming that the PlayList number described in the Title configuration table corresponds to each PlayList, the Movie Object generating unit 63 assumes that a Movie Object (PlayList playback command that sequentially plays back multiple PlayLists belonging to Titles). Including multiple). A plurality of Movie Objects are obtained by repeating this process for all Title configuration tables. The plurality of Movie Objects obtained in this way are converted into one file called “Movie Object.bdmv”. FIG. 35 is a diagram showing Clip information and Movie Object generated based on the Clip configuration table and PL information shown in FIGS. 6B and 6C. The PlayList1 configuration table shown in FIG. 6B corresponds to PlayList # 1, and Clip names such as Clip # 1 and Clip # 2 are described. Similarly, the PlayList2 configuration table shown in FIG. 6B corresponds to PlayLIst # 2, and describes Clip # 3 and Clip # 4. Based on these PlayList configuration tables, the PlayList generation unit 62 generates PL information, so that PlayLIst information # 1 for sequentially ordering playback of AVClip # 1 and AVClip # 2, and playback of AVClip # 3 and AVClip # 4 are sequentially performed. PlayLIst information # 2 to be ordered is generated.

  Since the PL numbers of PlayLIst # 1 and PlayLIst # 2 are described in the Title configuration table, Movie Object # 1 including a playback command for PlayLIst information # 1 and PlayLIst information # 2 is generated by the Movie Object generator 63. Will be. If the above processing is performed on the Title configuration tables # 1, # 2, and # 3, Movie Objects # 1, # 2, and # 3 as shown in FIG. 36 are obtained. The one-dot chain line in the figure means Title. On the other hand, the broken line includes components that are made into one file in the BD-ROM.

  “Movie Object.bdmv” is obtained by grouping the plurality of Movie Object # 1, # 2, and # 3 thus obtained. In the Title configuration table for FirstPlay Title, the PlayList number is described, and the PlayList information corresponding to the PlayList number is described to play back the AVClip that constitutes the menu of the entire optical disc (called the top menu in the BD-ROM). ing. Therefore, the Movie Object generation unit 63 generates a Movie Object that reproduces the top menu via this PlayList.

  The Index Table generating unit 64 generates an Index Table that associates the Title number of each Title with the Movie Object number of the Movie Object constituting the Title. In this Index Table, a Movie Object for top menu playback is described at the top. This is because the top menu must be played first when a BD-ROM is loaded. A BD-ROM volume image can be obtained by converting the Clip information and the PL information generated in this way into a movie object and an index table, respectively.

FIG. 37 is a diagram showing a BD-ROM volume image expressed by a file system layout. In this figure, a subdirectory called BDMV is formed under the Root directory. Under this BDMV directory, there are a PLAYLIST directory, a CLIPINF directory, and a STREAM directory.
Clip information is arranged in the CLIPINF directory as a file named “xxxxx.clpi”. Here, x is the number of Clip information. AVClip is arranged in the STREAM directory as a file named “xxxxx.m2ts”. Here, x is an AVClip number. The PlayList is arranged as a file named “yyyyy.mpls” in the PLAYLIST directory. Here, y is a PlayList number. The information elements making up the Index Table are recorded in the BDMV directory as a file named index.bdmv.

  As described above, according to the present embodiment, whether or not normal playback is confirmed in the volume configuration information is set for each component such as Clip, PlayList, and Title, so copy this volume configuration information, When used as the initial version of the volume configuration information for BD-ROM, it is possible to know at a glance which one has been confirmed to be played normally. Therefore, it is possible to save work for components that are common to DVD-Video and BD-ROM and that have been confirmed to be normally reproduced. By omitting the work, the complexity of the work is reduced. Therefore, the work efficiency can be increased by the above-described reuse.

(Second embodiment)
The second embodiment relates to an improvement in the case where information for realizing subtitle reproduction exists in a Clip. Subtitle reproduction is realized by run-length data. This run-length data is compressed data obtained by run-length encoding a menu having a plurality of buttons.
In DVD-Video, this run-length data is multiplexed into the VOB as a sub-picture stream consisting of a plurality of PES packets. FIG. 38 is a diagram illustrating a process in which sub-video streams are multiplexed. The meanings of the first to fourth stages in this figure are the same as those in FIG. The difference is that an elementary stream is newly added to the sixth stage. The sub-picture stream shown in this elementary stream constitutes subtitles. This sub-video stream is converted into a PES packet, an AVPack, and multiplexed into a VOB as shown in the fifth row.

On the other hand, in BD-ROM, run-length data is handled as a presentation graphics stream composed of a plurality of PES packets. The presentation graphics stream constituting the subtitle is multiplexed into the AVClip together with the video stream and the audio stream.
FIG. 39 is a diagram illustrating a process of multiplexing presentation graphics streams. The meanings of the first to fourth stages in this figure are the same as those in FIG. The difference is that an elementary stream is newly added in the sixth stage. The sub-video stream shown in this elementary stream represents a caption, and as shown in the fifth level, it is PES packetized, TSpacketized, and multiplexed into an AVClip.

In both DVD-Video and BD-ROM, run-length data is multiplexed into the stream body. These run length data are stored in the HDstream directory and the SDstream directory in the material storage 4 like other elementary streams because they are to be multiplexed in the stream body.
As described in the first embodiment, the player simulator 36 can read a plurality of elementary streams to be multiplexed from the material storage 4 and reproduce them on the client devices 21 to 23 and 25 to 27. In this case, the player simulator 36 also realizes subtitle display. As a result, the user can check whether the subtitles are correctly displayed.

  Since the synchronization of subtitle display is defined by the time stamp in the PES packet, the editing application 37 reads the sub-picture stream or presentation graphics stream from the material storage 4 and rewrites this time stamp to adjust the synchronization. Then, the adjusted sub-video stream or presentation graphics stream is written back to the material storage 4.

  If the normality of the synchronized playback is confirmed through the above correction, an operation for setting the verification state menu to confirmed is accepted from the user on the condition that the above three conditions are satisfied. As a result, the confirmed flag in the Clip configuration table is set to “= 1”. In this way, version 0.x of the DVD volume configuration information in which the confirmed flag is set to “= 1” is reused to make version 0.1 of the BD volume configuration information.

For components that are common to DVD-Video and BD-ROM, including subtitle display, and for which normal playback has been confirmed by DVD-Video authoring, editing work on Clip configuration table, normal Since all operations such as confirmation of playback can be omitted, the progress of BD-ROM authoring can be accelerated.
As described above, according to the present embodiment, when run-length data for realizing caption display is multiplexed on a Clip, the confirmed flag is set to “= 1” on condition that the synchronized display of captions is correct. Therefore, for subtitle display for which normal playback has been confirmed in DVD-Video authoring, it is possible to omit the confirmation of normal playback in BD-ROM authoring.

(Third embodiment)
The third embodiment relates to an improvement when information for realizing interactive playback exists in a stream. Interactive playback consists of dialog control information and run-length data. This run-length data is compressed data obtained by run-length encoding a menu having a plurality of buttons.

In DVD-Video, this run-length data is handled as a sub-picture stream in the same manner as subtitles and multiplexed into a VOB. The dialog control information is stored in an AV pack for GOP management (referred to as a navigation pack) in the video stream.
FIG. 40 is a diagram illustrating a process in which a sub-picture stream and dialogue control information are multiplexed. The meanings of the first to fifth stages in this figure are the same as those in FIG. The contents of the elementary stream have been partially modified, and the seventh level has been newly added. The sub-picture stream shown in this elementary stream draws not only subtitles but also menus. In this way, the sub-picture streams constituting the subtitles and menus are PES packetized, AVPacked, and multiplexed into the VOB as shown in the fifth row. On the other hand, the dialogue control information shown in the seventh row is converted into a PES packet and stored in NVPack.

On the other hand, in BD-ROM, run-length data and dialogue control information are integrated and handled as an elementary stream called an interactive graphics stream. The interactive graphics stream is multiplexed into an AVClip together with the presentation graphics stream that constitutes subtitles.
FIG. 41 is a diagram illustrating a process in which a sub-video stream and dialogue control information are multiplexed. The meanings of the first to fifth stages in this figure are the same as those in FIG. The difference is that the seventh stage is newly added. The interactive graphics stream shown in the seventh row is an integration of run-length data for drawing a menu and dialog control information. The interactive graphics stream integrated in this way is converted into a PES packet, converted into a TS packet, and multiplexed into an AVClip as shown in the fifth row.

In both DVD-Video and BD-ROM, the state control information is multiplexed into the stream body. Since the dialogue control information and the run length data are to be multiplexed in the stream body, the HDstream directory and the SDstream directory in the material storage 4 are stored in the same manner as other elementary streams.
As described in the first embodiment, the client apparatuses 21 to 23 and 25 to 27 read a plurality of elementary streams to be multiplexed from the material storage 4 and reproduce them on the client apparatuses 21 to 23 and 25 to 27. Can be made. In this case, the client devices 21 to 23 and 25 to 27 realize interactive reproduction processing. Thereby, the user can confirm whether or not the description of the dialog control information is correct.

  The dialogue control information includes a button drawing position and drawing time, and a command to be executed by the playback device when the button is determined. Since these are a collection of data and commands, if an error is recognized in the dialog control information at the time of the above-mentioned normal reproduction confirmation, the editing application 37 activates the editor function, and these commands, By rewriting the data, the dialog control information can be corrected.

  For example, if an abnormal branch playback is performed when a menu operation is performed at the time of confirmation of normal playback, it is assumed that there is a problem in the description of the branch destination in the dialog control information, and the dialog control information stored in the material storage 4 is Read and modify the branch command described in this on the client device. Then, the edited dialogue control information is written back to the material storage 4.

  If the normal reproduction of the interactive process is confirmed through the above correction, an operation for setting the verification state menu to confirmed is accepted from the user on the condition that the above three conditions are satisfied. As a result, the confirmed flag in the Clip configuration table is set to “= 1”. In this way, version 0.x of the DVD volume configuration information in which the confirmed flag is set to “= 1” is reused to make version 0.1 of the BD volume configuration information.

For components that are common to DVD-Video and BD-ROM and that include interactive elements, and for which normal playback has been confirmed by DVD-Video authoring, editing work on the clip configuration table Since all operations such as confirmation of normal playback can be omitted, the progress of BD-ROM authoring can be accelerated.
As described above, according to the present embodiment, when the dialog control information for realizing interactive playback is multiplexed in the stream body, the description of the dialog control information such as the branch destination is correct. Since the confirmed flag is set to “= 1”, it is possible to omit the confirmation process of the normal reproduction in the BD-ROM authoring for the dialog control information in which the normal reproduction is confirmed in the DVD-Video authoring.

(Fourth embodiment)
The fourth embodiment relates to an improvement in a case where it is desired that a playback apparatus perform some control procedure before and after stream playback. In order to allow the user to input such a control procedure, the editing application 37 activates an editor function for document input at the time of editing the Title configuration table, and receives an input of a command string that realizes the control procedure. The editing application 37 describes the command string input in this way before and after the PlayList name in the Title configuration table. FIG. 42 is a diagram illustrating an example of a Title configuration table in which commands are described. If the command sequence is described in this way, the PGC information generation unit 51 in the scenario converter 8 sets the command sequence in the PGC information as a pre-processing command and a post-processing command.

On the other hand, the Movie Object generation unit 63 in the scenario converter 11 describes such a command string in the Movie Object. This description is before and after the PlayList playback command.
With the above description, it is possible to cause the playback device to execute some control procedure before and after the VOB, and to cause the playback device to execute some control procedure before and after playback of the AVClip.
The confirmation as to whether or not the control procedure is normally executed is as follows.

  As described in the first embodiment, the client apparatuses 21 to 23 and 25 to 27 read a plurality of elementary streams from the material storage 4 according to the description of the Title configuration table, and the client apparatuses 21 to 23 and 25 to 27 are on the client apparatuses 21 to 23 and 25 to 27. Play with. In this case, the player simulator 36 executes a control procedure before and after the PlayList playback when performing PlayList playback for the PlayList described in each Title configuration table. With this execution, it is possible to confirm on the client devices 21 to 23 whether or not the control procedure is normal.

If an error is recognized in the control procedure, the editing application 37 on the client devices 21 to 23 and 25 to 27 activates the editor function and rewrites the description of the command in the Title configuration table according to the operation from the user. Thereby, it is possible to modify the control procedure performed before and after PlayList playback.
After the above corrections, if the normal execution of the control procedure is confirmed, the user can perform an operation to set the verification status menu of the title composition table editing window to “confirmed” on the condition that other conditions are satisfied. Accept from. As a result, the confirmed flag in the Title configuration table is set to “= 1”. In this way, version 0.x of the DVD volume configuration information in which the confirmed flag is set to “= 1” is reused to make version 0.1 of the BD volume configuration information.

For the components that are common to DVD-Video and BD-ROM and that have a control procedure before and after playback, and that have been confirmed to be played normally by DVD-Video authoring, see the Title configuration table. This eliminates all editing operations and confirmation of normal playback, thus speeding up the progress of BD-ROM authoring.
As described above, according to the present embodiment, it is possible to describe in the Title configuration table that some playback is performed before and after playback of the VOB and AVClip, so that the range of expression can be expanded.

<Remarks>
Although it has been described based on the above embodiment, it is merely presented as an example of a system that can be expected to have the best effect in the present situation. The present invention can be modified and implemented without departing from the gist thereof. As typical modified embodiments, there are the following (A), (B), (C),...
(A) Since the information processing by the program shown in each flowchart specifically uses hardware resources such as a CPU and a memory, this program is established as a single invention. 1st Embodiment-3rd Embodiment was the aspect integrated in the production | generation apparatus, and although embodiment about the implementation act of the program which concerns on this invention was shown, it isolate | separated from an encoding apparatus, 1st Embodiment- The single program shown in the third embodiment may be implemented. The act of implementing the program alone includes the act of producing these programs (1), the act of transferring the program for a fee (2), the act of lending (3), the act of importing (4), There is an act of offering to the public via an electronic communication line (5), an act of offering to the general user transfer or rental of the program by store display, catalog solicitation, pamphlet distribution.

There are two types of provision (5) via a two-way electronic communication line: the provider sends the program to the user, causes the user to use the program (program download service), and leaves the program at the provider's hand There is an act of providing only the function of the program to the user through the electronic communication line (function providing ASP service).
(B) The “time” element of each step executed in time series in each flowchart is considered as an indispensable matter for specifying the invention. Then, it can be understood that the processing procedure by these flowcharts discloses the usage form of the authoring method. These flowcharts are the embodiments of the usage act of the authoring method according to the present invention. If the processing of each step is performed in chronological order so as to achieve the original object of the present invention and achieve these actions and effects, the authoring according to the present invention can be performed. Needless to say, this is an implementation of the method.

(C) The verification completion flag is set manually by the operator who verified the digital stream according to the result, but the verification tool linked to the playback device has no error in the execution result for the volume configuration information. May be automatically set based on the information.
(D) Note that clip playback is confirmed by starting a simulator / emulator independent of the client devices 21 to 23, 25 to 27, instead of the simulator built in the client devices 21 to 23, 25 to 27. May be. Further, an offset value for eliminating the synchronization shift may be received from the simulator / emulator and reflected in the scenario information based on the offset value.

It is a flowchart which shows the production process of DVD-Video and BD-ROM. It is a figure which shows the internal structure of an authoring system. (A) Writing to the material storage 4 when an SD image and an HD image are obtained by performing tele-cine conversion of the film is shown. (B) Writing to the material storage 4 when an SD image is obtained by the SD camcorder and an HD image is obtained by shooting by the HD camcorder. 2 is an enlarged view showing an internal configuration of a server device 3. FIG. It is a figure which shows the common structure of DVD volume structure information-BD volume structure information. (A) An example of the internal configuration of the Clip configuration table is shown. (B) An example of the internal configuration of the PlayList configuration table is shown. (C) An example of the internal configuration of the Title configuration table is shown. (D) It is a figure which shows the meaning content of the confirmed flag. It is a figure which shows the level of completeness in DVD volume structure information and BD volume structure information by a version number. It is a figure which shows the common internal structure in the client apparatuses 21-23. 4 is a diagram showing a GUI screen displayed on the display device 30. FIG. It is a figure which shows the GUI components which comprise the example of a display of FIG. It is a figure which shows the hierarchy in the logical structure of volume structure information. It is a figure which shows the window for editing a Clip structure table. (A) Editing to add a component to the configuration table is shown. (B) Shows editing to delete a component from the configuration table. (C) Shows editing to change a component in the configuration table. The reproduction | regeneration image | video displayed when operating with respect to a reproduction | regeneration panel is shown. The window displayed when double-clicking the synchronization adjustment panel is shown. It is a figure which shows operation with respect to a verification state menu. (A) It is a figure which shows the update of a confirmed flag. (B) It is a figure which shows the display mode which shows that Clip1 has been confirmed. (A) It is a figure which shows operation with respect to the verification status menu of a Clip2 structure table. (B) It is a figure which shows the display mode which shows that Clip2 has been confirmed. (A) It is a figure which shows operation with respect to the verification status menu of PL1 structure table. (B) It is a figure which shows the display mode which shows that PL1 has been confirmed. It is a figure which shows GUI for editing a Title structure table. FIG. 11 is a diagram showing DVD volume configuration information of version 0.x. 10 is a flowchart showing a processing procedure of the editing application 37. It is a figure which shows the common structure of the client apparatuses 25-27. It is a flowchart which shows the process sequence of the edit application 37 in the client apparatuses 25-27. It is a figure which shows the display procedure which displays BD volume structure information. FIG. 26 is a diagram showing a GUI screen that appears when the processing procedure of FIG. 25 is executed for version 0.1 of the BD volume configuration information of FIG. 21. It is a figure which shows how multiplexing by the multiplexer 7 is performed. 3 is a diagram functionally showing the internal configuration of a DVD scenario converter 8. FIG. It is a figure which shows the PGC information produced | generated based on the PlayList structure table and Title structure table which are shown by FIG.6 (b) (c). It is a figure which shows Search Pointer produced | generated with respect to the Title structure table | surface of FIG.6 (c). 6 is a diagram showing a Video Manager generated by a Video Manager generation unit 56. FIG. It is a figure which shows the file system layout in a DVD-Video volume image. FIG. 4 is a diagram illustrating a TS packet sequence generation process by a multiplexer 10; 3 is a diagram showing an internal configuration of a scenario converter 8. FIG. FIG. 7 is a diagram showing Clip information and Movie Object generated based on the Clip configuration table and the PL configuration table shown in FIGS. 6B and 6C. It is a figure which shows Movie Object # 1, # 2, # 3 produced | generated with respect to Title structure table # 1, # 2, # 3 of FIG.6 (c). It is a figure which shows the BD-ROM volume image expressed with the layout of the file system. It is a figure which shows the process in which a subpicture stream is multiplexed. It is a figure which shows the process in which a presentation graphics stream is multiplexed. It is a figure which shows the process in which a subvideo stream and dialog control information are multiplexed. It is a figure which shows the process in which a presentation graphics stream and dialog control information are multiplexed. It is a figure which shows an example of the Title structure table in which the command was described.

Explanation of symbols

1 Input Device 2 Encoding Device 2 Multiplexer 3 Server Device 4 Material Storage 5 DVD Configuration Information Storage 6 BD Configuration Information Storage 7 Multiplexer 8 DVD Scenario Converter 9 Formatter 10 Multiplexer 11 BD Scenario Converter 12 Formatter 21-23 Client Device 25-27 Client Device 30 Display device 31 Pointing device 32 CPU
33 RAM
34 Hard Disk 35 Operating System 36 Player Simulator 37 Editing Application 51 PGC Information Generation Unit 52 Attribute Information Generation Unit 53 VTSSearch Generation Unit 55 VTS Information Generation Unit 56 Video Manager Generation Unit 61 Clip Information Generation Unit 62 PlayList Generation Unit 63 Movie Object Generation Unit 64 Index table generator

Claims (12)

An authoring system for creating volume configuration information for a plurality of types of optical discs , wherein the types of the optical disc include a type of a first optical disc and a type of a second optical disc,
First creation means for creating volume configuration information for the first optical disc;
A copy of the volume configuration information for the first optical disc that is in an incomplete state is obtained to obtain a duplicate of the volume configuration information. Second creation means for creating volume configuration information for an optical disc,
The unfinished volume configuration information is
Whether or not the content confirmation by the user has been completed has status information for each component of the volume configuration information,
The second creating means includes
An authoring system characterized by displaying individual components in a replica of the volume configuration information in a mode based on status information when performing editing processing. The aspect based on the state information is
To represent a component that has been confirmed in a different manner from a component that has not been confirmed,
The editing process includes
The authoring system according to claim 1, wherein the authoring system is performed based on a user operation on the displayed component. The editing process by the second creating means is:
This is done for components whose contents have not been confirmed.
The second creating means includes
3. The authoring system according to claim 2, wherein an editing process based on a user operation is locked for a component whose contents have been confirmed. The component includes a multiplexed stream,
A multiplexed stream is obtained by multiplexing a plurality of elementary streams,
The editing process by the creating means is
Selection of elementary streams to be multiplexed into one multiplexed stream, determination of the multiplexing order of elementary streams, synchronization adjustment of multiple elementary streams,
The content confirmation for the multiplexed stream is:
The combination of elementary streams to be multiplexed into one digital stream is valid,
The multiplexing order of the elementary streams is correct,
2. The authoring system according to claim 1, wherein reproduction of a plurality of elementary streams is required to be synchronized. The component in the volume configuration information includes a reproduction path of a plurality of multiplexed streams,
The editing process for the playback path by the creating means is as follows.
Selection of the multiplexed stream to be played back, setting of the playback order of the multiplexed stream,
The status information about the playback path is
All status information for each multiplexed stream is set to "Content confirmed" (1)
5. The authoring system according to claim 4, wherein the content is set to “confirmed” on condition that the order of the multiplexed streams is correct (2). The component in the volume configuration information has a title including a plurality of playback paths,
The editing process for the title by the creating means is
The order of the playback path,
Status information about the title
All status information for each playback path must be set to “content confirmed” (1) The playback path must be in the correct order (2) and set to “content confirmed”. The authoring system according to claim 5, characterized in that: The component includes a multiplexed stream,
A multiplexed stream is obtained by multiplexing a plurality of elementary streams,
Some elementary streams contain dialogue control information that implements interactive playback control.
The content confirmation for the multiplexed stream is as follows:
2. The authoring system according to claim 1, wherein the interactive reproduction control is required to be performed correctly. The authoring system includes a server device and two or more client devices,
The first and second volume configuration information is stored in the server device,
2. The authoring system according to claim 1, wherein the first creating unit and the second creating unit exist on two or more client devices, respectively. The component includes a multiplexed stream,
A multiplexed stream is obtained by multiplexing a plurality of elementary streams,
The server device further stores a plurality of elementary streams,
The two or more client devices are:
9. The authoring system according to claim 8, wherein an operation for confirming the content of a component is received after a plurality of elementary streams existing on the server device are reproduced. An authoring system for creating volume configuration information for a plurality of types of optical discs , wherein the types of the optical disc include a type of a first optical disc and a type of a second optical disc,
First creation means for creating volume configuration information for the first optical disc;
Copying the volume configuration information for the first optical disc, which is in an incomplete state, to obtain a copy of the volume configuration information, and performing editing processing on the copy, the second optical disc and a second generating means for generating volume configuration information for,
The type of the first optical disc is DVD-Video, the type of the second optical disc is BD-ROM,
Said first forming means and said second generating means,
The components of the volume configuration information of the DVD-Video for the combination of the components of the volume configuration information of the BD-ROM for and displayed using a common GUI components,
The combination with the components displayed in the common GUI component is
A combination of VTS_TT, which is a component of volume configuration information for the DVD-Video, and a title, which is a component of volume configuration information for the BD-ROM,
A combination of a program chain that is a component of volume configuration information for DVD-Video and a playlist that is a component of volume configuration information for BD-ROM,
An authoring system comprising a set of a video object that is a component of volume configuration information for DVD-Video and a clip that is a component of volume configuration information for BD-ROM . A program for creating volume configuration information for a plurality of types of optical discs , wherein the type of the optical disc includes a type of a first optical disc and a type of a second optical disc,
The volume configuration information for the first optical disc, which is obtained by copying the incomplete state, is subjected to an editing process to be different for the second optical disc from the first optical disc. Let the computer perform the process of creating volume configuration information for
The unfinished volume configuration information is
Whether or not the content confirmation by the user has been completed has status information for each component of the volume configuration information,
The program is
A program that controls a computer to display individual components in a replica of the volume configuration information in a mode based on status information when performing editing processing. An authoring method for creating volume configuration information for a plurality of types of optical discs , wherein the types of the optical disc include a type of a first optical disc and a type of a second optical disc,
A first step of creating volume configuration information for the first optical disc;
The volume configuration information for the first optical disc, which is obtained by copying the incomplete state, is subjected to an editing process to be different for the second optical disc from the first optical disc. A second step of creating volume configuration information of
The unfinished volume configuration information is
Whether or not the content confirmation by the user has been completed has status information for each component of the volume configuration information,
The second step includes
An authoring method characterized by displaying individual components in a replica of the volume configuration information in a mode based on status information when performing an editing process.

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