JP2003230104A - Information processing equipment and method, program storing medium, program and information recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reproduce simply and surely a characteristic reproduction section of an AV stream without complicating management. <P>SOLUTION: A mark of a type showing a point and a mark of a type showing a section (term) are prepared as marks showing characteristic points of the AV stream. The mark of a type showing a point designates a point with a time stamp corresponding to a prescribed reproduction time of the AV stream. The mark of a type showing a section designates a section, on the basis of a time stamp of a regeneration start point of a prescribed reproduction section of the AV stream and sustaining time (duration) from the reproduction start point to a reproduction end point. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus and method, a program storage medium, a program, and an information recording medium, and more particularly to a desired position of an AV stream.
The present invention relates to an information processing apparatus and method, a program storage medium, a program, and an information recording medium that enable quick access.

[0002]

2. Description of the Related Art In recent years, various optical disks have been proposed as disk-type media capable of recording and removable from a recording / reproducing apparatus. Such a recordable optical disc is
Proposed as a large-capacity media of several gigabytes,
It is highly expected as a medium for recording AV (Audio Visual) signals such as video signals.

MPEG (Moving Picture Experts Gr) is one of the encoding methods for digitally compressing a digital video signal.
oup) There are two methods. MPEG2 is also applied when recording a digital video signal on a recording medium. For example, when recording an analog video signal on a recording medium, the video signal is encoded in the MPEG2 system and the encoded bit stream is recorded on the recording medium. In addition, in the digital TV (television) broadcasting that has recently begun, MPEG2
A video program encoded by the method is transmitted in a format called a transport stream. When recording a digital broadcast on an information recording medium, a method of recording a transport stream as a digital signal without decoding or re-encoding is used.

When the AV signal is recorded on the disk medium, random access reproduction (starting reproduction, fast-forward reproduction, etc.) of the AV signal can be easily realized. Utilizing this feature, the user can freely select the playback section (IN point (IN point) and OUT point (OUT point)) from the recorded AV signal and freely set the playback path of the AV signal. Can be created. This function is generally called playlist playback. For example, the DVD video recording standard (DVD speci
fications for Rewritable / Re-recordable Discs, Part
3 Video Recording, Version 1.0, September 19
99), playlist playback is performed by User Defined PGC
Specified as Original PGC.

In addition, the user selects from the playlist
You can select the start point of your favorite scene and record the playback start point information. This function is called a feature point or mark. For example, in the DVD video recording standard, Movie Cell EntryPoint Information (M_C_EP
I).

[0006]

When a user selects an arbitrary reproduction section (start point and end point) from a certain playlist, it is necessary to realize a function of giving a special meaning to the reproduction section. , Conventionally, for example, the following 2
There are two possible ways.

The first method is a method in which, when the user selects the special reproduction section from the playlist, another playlist having the reproduction section on the reproduction path is created. However, this method has a problem that the number of playlists increases even though the user does not want to create a new playlist.

The second method is to use two marks (start mark and end mark) when the user selects the special reproduction section from the play list.
This is a method of indicating the section. However, this method has a problem in that the number of pieces of mark information increases and two marks indicating a section must be managed as a pair, which complicates reproduction processing and editing processing using the marks.

Also, in the case of implementing a function of selecting a moving image in an arbitrary characteristic reproduction section from the input AV stream and giving a special meaning to the section, for example, 2
One possible method is to use one mark (start mark and end mark) to indicate the section. However,
This method also has a problem in that the number of pieces of mark information increases and two marks indicating a section must be managed in pairs, which complicates the management method of recording / reproducing marks.

The present invention has been made in view of such a situation, and in the case of realizing a function of selecting an arbitrary reproduction section from a certain playlist and giving a special meaning to the section. The management of recording and reproduction of the reproduction section can be easily performed.

Further, when a moving image of an arbitrary characteristic reproduction section is selected from the input AV stream and a function of giving a special meaning to the section is realized, recording / reproduction management of the reproduction section is managed. It should be easy to do.

[0012]

A first information processing apparatus according to the present invention comprises a detection means for detecting a moving image in a characteristic reproduction section from an input AV stream, and a time stamp of a reproduction start point in the reproduction section. And generating means for generating a clip mark having the duration of the reproduction section and recording means for recording the clip mark on the information recording medium.

The generating means may further include an acquiring means for acquiring the extended data, and the generating means may add the extended data acquired by the acquiring means to the clip mark.

A first information processing method of the present invention is a detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, a time stamp of a reproduction start point of the reproduction section, and a duration of the reproduction section. And a recording step of recording the clip mark on the information recording medium.

The program of the first program storage medium of the present invention includes a detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, a time stamp of a reproduction start point of the reproduction section, and a reproduction section. The method is characterized by including a generation step of generating a clip mark having a duration and a recording step of recording the clip mark on an information recording medium.

A first program of the present invention has a detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, a time stamp of a reproduction start point of the reproduction section, and a duration of the reproduction section. The computer is caused to execute a generation step of generating the clip mark and a recording step of recording the clip mark on the information recording medium.

A first information recording medium of the present invention is characterized in that a clip mark having a time stamp of a reproduction start point of a characteristic reproduction section detected from an AV stream and a duration of the reproduction section is recorded. And

A second information processing apparatus of the present invention is an acquisition means for acquiring a clip mark from an information recording medium, and a processing of information recorded on the information recording medium based on the clip mark acquired by the acquisition means. And a control means for controlling.

A second information processing method according to the present invention is an information recording step based on an acquisition step of acquiring a clip mark from an information recording medium and the clip mark acquired by the processing of the acquisition step. And a control step for controlling the processing of.

The program of the second program storage medium of the present invention is recorded on the information recording medium based on the obtaining step of obtaining the clip mark from the information recording medium and the clip mark obtained by the processing of the obtaining step. Control step for controlling the processing of existing information.

A second program of the present invention is an acquisition step of acquiring a clip mark from an information recording medium, and processing of information recorded on the information recording medium based on the clip mark acquired by the processing of the acquisition step. And a control step for controlling.

A third information processing apparatus of the present invention comprises a first acquisition means for acquiring an arbitrary reproduction section designated by the user from a play list defining a combination of predetermined sections in the AV stream, The present invention is characterized by including a time stamp of the start point of the reproduction section, a generation means for generating a playlist mark having the duration of the reproduction section, and a recording means for recording the playlist mark on the information recording medium.

The present invention further comprises a second acquisition means for acquiring the extension data, and the generation means can add the extension data acquired by the second acquisition means to the play list mark.

A third information processing method according to the present invention comprises an acquisition step of acquiring an arbitrary reproduction section instructed by a user from a playlist defining a combination of predetermined sections in the AV stream, and a reproduction section of the reproduction section. The present invention is characterized by including a time stamp of a start point, a generation step of generating a play list mark having a duration of a reproduction section, and a recording step of recording the play list mark on an information recording medium.

The program of the third program storage medium according to the present invention includes an acquisition step of acquiring an arbitrary reproduction section instructed by the user from a play list defining a combination of predetermined sections in the AV stream, and reproduction. The present invention is characterized by including a time stamp of a start point of a section, a generation step of generating a playlist mark having a duration of a reproduction section, and a recording step of recording the playlist mark on an information recording medium.

The third program of the present invention is an acquisition step of acquiring an arbitrary reproduction section instructed by the user from a playlist defining a combination of predetermined sections in the AV stream, and a time of a reproduction start point. The computer is caused to execute a stamp, a generation step of generating a playlist mark having a duration of a reproduction section, and a recording step of recording the playlist mark on an information recording medium.

The second information recording medium of the present invention has a time stamp of a start point of an arbitrary reproduction section instructed by the user from a playlist defining a combination of predetermined sections in the AV stream. , A playlist mark having the duration of the reproduction section is recorded.

The fourth information processing apparatus of the present invention is an information recording medium which acquires the playlist mark from the information recording medium, and the information recorded on the information recording medium based on the playlist mark acquired by the acquiring unit. And a control means for controlling the processing of.

According to a fourth information processing method of the present invention, an information recording medium is recorded on an information recording medium based on an acquisition step of acquiring a playlist mark from the information recording medium and the playlist mark acquired by the processing of the acquisition step. Control step for controlling the processing of existing information.

The program of the fourth program storage medium of the present invention is recorded on the information recording medium based on the acquisition step of acquiring the playlist mark from the information recording medium and the playlist mark acquired by the processing of the acquisition step. Control steps for controlling the processing of the information that is stored.

A fourth program of the present invention comprises an acquisition step of acquiring a playlist mark from an information recording medium,
And a control step of controlling processing of information recorded on the information recording medium based on the playlist mark acquired by the processing of the acquisition step.

A first information processing apparatus and method of the present invention,
In the program storage medium, the program, and the information recording medium, the time stamp of the reproduction start point of the characteristic reproduction section detected from the AV stream and the clip mark having the duration of the reproduction section are recorded in the information recording medium. .

A second information processing apparatus and method of the present invention,
In the program storage medium and the program, based on the clip mark acquired from the information recording medium,
The processing of the information recorded on the information recording medium is controlled.

A third information processing apparatus and method of the present invention,
In the program storage medium, the program, and the second information recording medium, a playlist mark having a reproduction start time stamp and a reproduction section duration defined by the reproduction start point and the reproduction end point is an information recording medium. Recorded in.

A fourth information processing apparatus and method of the present invention,
In the program storage medium and the program, the processing of information recorded on the information recording medium is controlled based on the playlist mark acquired from the information recording medium.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a simplified structure of an application format on a recording medium used in a recording / reproducing system to which the present invention is applied. This format has two layers, PlayList (Playlist) and Clip (clip), for managing the AV stream.

A pair of one AV stream and its associated information is considered as one object, which is called a clip. AV
The stream file is called a Clip AV stream file, and its attached information is called a Clip Information file.

One Clip AV stream file is MPE
It consists of data in which the G2 transport stream is arranged in the structure specified by the DVR application format.

Generally, a data file used in a computer or the like is treated as a byte string, but the contents of the Clip AV stream file are expanded on the time axis.
Then, the PlayList specifies the access point in the Clip with a time stamp. When the PlayList points to the access point to the Clip with a time stamp, the Clip Information file is useful for finding the address information in the Clip AV stream file where decoding of the stream should start. For that, ClipInform
The ation file has a time stamp to address correspondence table for time search in the Clip AV stream.

The PlayList was introduced for the purpose of allowing the user to select a reproduction section desired to be viewed from the Clip and edit it easily. One PlayList is Clip
It is a group of playback sections. One playback section in a certain Clip is called a PlayItem.
It is represented by a pair of IN and OUT points on the time axis. Therefore, PlayList is a collection of PlayItems.

There are two types of PlayList. One is a Real PlayList (real playlist), and the other is a Virtual PlayList (virtual playlist).

Real PlayList is the Cli it references
Considered to share the stream part of p. That is, the Real PlayList occupies a data capacity corresponding to the stream portion of the Clip referred to by the Real PlayList in the disc. When the AV stream is recorded as a new Clip, Real PlayL that refers to the playable range of the entire Clip
ist is created automatically. When a part of the playback range of the Real PlayList is deleted, the data of the stream part of the Clip that it refers to is also deleted.

The Virtual PlayList is regarded as not sharing Clip data. Even if the VirtualPlayList is changed or deleted, nothing will change in the Clip.

In the following description, Real PlayL
The ist and Virtual PlayList are collectively referred to simply as PlayList.

The mark is for designating highlights and characteristic times in Clip and PlayList.

The mark added to the PlayList is PlayList.
Called Mark (Playlist Mark), this is mainly set by the user. There are two types of PlayListMark (see FIG. 2). One is a type of mark indicating a point, which is indicated by a time stamp indicating the point. The other is a section type mark, which is a time stamp indicating the start of the section and the duration of the section.
Indicated by. An example of the type of mark indicating a point is the start point of a scene that the user likes. An example of the type of mark indicating a section is a section of a scene that the user likes.

The mark added to the Clip is called a ClipMark (clip mark), which specifies a characteristic scene due to the contents of the AV stream. 2 for ClipMark
There are two types (see Figure 3). One is a type of mark indicating a point, which is indicated by a time stamp indicating the point. The other is a section type mark, which is a time stamp indicating the start of the section and the duration of the section (d
uration). An example of the type of mark indicating a point is the starting point of a characteristic scene. An example of the type of mark indicating a section is a section of a characteristic scene. When playing the PlayList,
The playback device can refer to the mark of the Clip referenced by the PlayList.

In FIG. 3, the STC continuous section represents a section in which the system time clock where the mark time stamp is placed is continuous.

FIG. 4 shows the syntax of PlayListMark () which is a database for storing PlayListMark. Play
ListMark () belongs to the PlayList file.

The length indicates the number of bytes from the byte immediately after this length field to the last byte of PlayListMark ().

Number_of_PlayList_marks is PlayListMa
Indicates the number of mark entries stored in rk ().

Mark_type indicates the type of mark, and indicates at least whether the mark is of point type or section type. Furthermore, the type of the point or the type of the section may be included in the meaning of mark_type.

Maker_ID indicates that mark in PlayListMark ()
Indicates the identification number of the manufacturer who manufactured the recording device stored in.

Ref_to_PlayItem_id indicates the PlayItem identification number for designating the PlayItem where the mark is placed.

Mark_time_stamp stores a time stamp indicating a point when the mark is a point type. If the mark is a section type, a time stamp indicating the start point of the section is stored. mark_t
ime_stamp is the PlayItem indicated by ref_to_PlayItem_id
Refers to the time within the playback range specified by IN_time and OUT_time as defined in.

If the mark is a section type, the duration is indicated by the duration of the section. This duration may be closed in the PlayItem indicated by ref_to_PlayItem_id, or may span PlayItems following the PlayItem.

Makers_private_data is a field that can be freely used by the manufacturer indicated by maker_ID, and its mark can be given a meaning unique to the manufacturer. For example, a section type mark can be used to instruct to perform fade-in or fade-out reproduction when reproducing the section indicated by duration.

FIG. 5 shows the syntax of ClipMark () which is a database for storing ClipMark. ClipMark ()
Belongs to the Clip Information file.

The length indicates the number of bytes from the byte immediately after the length field to the last byte of ClipMark ().

Maker_ID indicates the identification number of the manufacturer of the recording device that creates ClipMark ().

Number_of_Clip_marks indicates the number of entries of marks stored in ClipMark.

Mark_type indicates the type of mark, and at least indicates whether the mark is of the point type or the section type. Furthermore, the type of the point or the type of the section may be included in the meaning of mark_type.

Ref_to_STC_id indicates an identification number for designating the time axis of the system time clock where the time stamp indicated by mark_time_stamp is placed. Here, the time axis of the system time clock is Clip
This is the time axis referenced by the playback time stamp of the video in the AV stream.

Mark_time_stamp stores a time stamp indicating a point when the mark is a point type. If the mark is a section type, a time stamp indicating the start point of the section is stored. mark_t
ime_stamp indicates the time on the time axis of the system time clock indicated by ref_to_STC_id.

If the mark is a section type, the duration is indicated by the duration of the section. This duration may be closed within the time axis of the system time clock indicated by ref_to_STC_id, or may extend over the time axis following the time axis of the system time clock.

Makers_private_data is a field that can be freely used by the maker indicated by maker_ID, and its mark can be given its own meaning. For example, in the case of a section type mark, when a section indicated by duration is reproduced, it can be used to instruct to perform skip reproduction of the section.

Next, a system for recording / reproducing data of the DVR application structure will be described with reference to the block diagram of the moving picture recording / reproducing apparatus in FIG. This moving image recording / reproducing apparatus is composed of a reproducing section 1 and a recording section 2.

First, regarding the operation at the time of recording, the case where the input audio video signal is encoded and recorded will be described.

Video signals and audio signals are inputted from the terminals 28 and 29, respectively. The video signal and the audio signal are input to the signal analysis unit 24 and the AV encoder 23. The AV encoder 23 encodes the input video signal and the audio signal, and encodes the encoded video stream (V).
2 and the encoded audio stream (A)
Output to 2. The encoded video stream (V) is, for example, M
The encoded audio stream (A) is a PEG2 video stream, and is, for example, an MPEG1 audio stream or a Dolby (trademark) AC3 audio stream.

The multiplexer 22 multiplexes the input stream and outputs the multiplexed stream. The multiplexed stream is, for example, an MPEG2 transport stream or
It is an MPEG2 program stream. The multiplexed stream is input to the source packetizer 21. The source packetizer 21 encodes the input multiplexed stream into an AV stream composed of source packets according to the application format of the recording medium. The AV stream is processed by the ECC (error correction) coding unit 20 and the modulation unit 19, and then input to the writing unit 18. The writing unit 18 records the Clip AV stream file on the recording medium 10 based on the control signal instructed by the control unit 17.

This moving picture recording / reproducing apparatus records a Clip AV stream file and also records application database information related to the file, that is, Cl.
Also record the ip Information file and the PlayList file. The application database information is created by the control unit 17.

The Clip Information file is ClipMar.
Including k (). ClipMark () is from the signal analysis unit 24 to the control unit 1
It is made based on the information input to 7. The PlayList file is created mainly based on the user's instruction information input from the user interface via the terminal 27.

The characteristic information of the moving image from the signal analysis unit 24 is automatically generated by this moving image recording / reproducing apparatus. The signal analysis unit 24 analyzes the content of the input video / audio signal, detects a characteristic image in the input moving image signal, and controls the time stamp of the image indicating the start point and the end point of the characteristic point by the control unit 17. Output to. For example, the start point and the end point of the characteristic point are the start point and the end point of the program in the input video signal, the start point and the end point of CM (commercial message), and the like. Control unit 17
Creates ClipMark () based on the input time stamps of the start point and the end point of the feature point.

In the case of a point type mark, the control unit 17 stores only the time stamp of the start point in ClipMark (). Also, in the case of a section type mark,
The time stamp (mark_time_stamp) of the start point and the duration (duration) from the start point to the end point are ClipMark ()
Will be stored in. Further, the control unit 17 can add extended data (makers_private_data) to the mark.

The user's instruction information input from the terminal 27 is information on a desired reproduction section in the AV stream and information on the start point and end point of the user's favorite scene. These pieces of user instruction information are stored in the PlayList database. The control unit 17 plays the Play based on the time stamp of the image of the start point and the end point of the scene obtained from the input information of the user's favorite scene.
Create ListMark (). In the case of a point type mark, only the time stamp of the starting point is stored in PlayListMark (). Also, in the case of a section type mark,
The time stamp (mark_time_stamp) of the start point and the duration (duration) from the start point to the end point are set in PlayListMa
Store in rk (). Further, the control unit 17 can add extended data (makers_private_data) to the mark.

Based on the above input information, the control unit 17 stores the AV stream database (Clip Information).
And create a PlayList database. These pieces of database information are processed by the ECC (error correction) encoding unit 20 and the modulation unit 19 in the same manner as the AV stream, and are input to the writing unit 18. The writing unit 18 includes the control unit 17
The database file is recorded in the recording medium 10 based on the control signal instructed from.

Next, the operation during reproduction will be described.

An AV stream file and application database information are recorded on the recording medium 10.

First, the control unit 17 instructs the reading unit 11 to read the application database information. Then, the reading unit reads the application database information from the recording medium, and the database information is processed by the demodulation unit 12 and the ECC (error correction) decoding unit 13 and input to the control unit 17.

The control unit 17 outputs a list of PlayLists recorded on the recording medium (disk) 10 from the terminal 27 to the user interface based on the application database. The user selects the PlayList to be played from the list of PlayLists using the user interface. The PlayList designated for reproduction is input to the control unit 17 from the terminal 27.

The control unit 17 instructs the reading unit 11 to read the AV stream file necessary for reproducing the PlayList. Then, the reading unit 11 reads the AV stream from the recording medium 10. This AV stream is
The AV stream is input to the source depacketizer 14 through the processing of the demodulation unit 12 and the error correction unit 13.

The source depacketizer 14 is used for the recording medium 1.
0 application format AV stream,
It is converted into a stream that can be input to the demultiplexer 15. The demultiplexer 15 inputs to the AV decoder 16 the video stream (V) and the audio stream (A) forming the playback section (PlayItem) of the AV stream designated by the control unit 17. The AV decoder 16 decodes the video stream and the audio stream, and outputs the reproduced video signal and the reproduced audio signal from the terminals 25 and 26, respectively.

Next, the case of reproducing a PlayList using PlayListMark or ClipMark will be described.

First, from the list of mark points stored in ClipMark () or PlayListMark (), the user instructs the control unit 17 which reproduction method uses a certain mark (for example, this operation is ClipMark (This is done by displaying a thumbnail image list of mark points stored in () or PlayListMark () on the user interface, and the user selecting an image from among them).

The control section 17 instructs the reading section 11 to read the AV stream indicated by the time stamp of the mark. Specifically, when the control unit 17 acquires the time stamp of the mark, the control unit 17 determines the read position of the AV stream from the storage medium based on the time stamp to address correspondence table for time search stored in the Clip Information file. Is determined and the reading unit 11 is instructed to read the AV stream.

The reading section 11 reads data from the designated address. The read data is the demodulation unit 1
2. After being processed by the ECC decoding unit 13 and the source depacketizer 14, the data is input to the demultiplexer 15 and decoded (decoded) by the AV decoder 16 to reproduce the AV data indicated by the mark.

Extended data (makers_private_dat) is added to the mark.
When a) is added, special reproduction may be performed based on the content. For example, when the extension data of the section type mark indicates fade-in or fade-out reproduction, the section indicated by the section may be reproduced as such.

Next, with reference to FIG. 7, a method of creating a ClipMark by the moving picture recording / reproducing apparatus will be described.

In step S11, the signal analysis unit 24
Analyzes the video signal and the audio signal input from the terminals 28 and 29, and detects the characteristic points thereof.

At step S12, the control section 17
In the process of step S11, the mark type, time stamp, and STC information of the feature point analyzed by the signal analysis unit 24 are acquired (mark_type, mark_time_stamp, r).
Get ef_to_STC_id. See FIG. ).

At step S13, the control section 17
It is determined whether the mark_type acquired in the process of step S12 is a section type mark. mark_typ
If e is a section type mark, the process proceeds to step S14, and the control unit 17 analyzes the input audio signal and video signal to detect the section (duration) indicated by the mark.

If it is determined in step S13 that mark_type is not a section type mark, the process of step S14 is skipped.

Next, in step S15, the control unit 17
When recording private data (markers_private_data), acquires the data input from the signal analysis unit 24, or acquires the data input from the user interface via the terminal 27.

In step S16, the control section 17
Based on the data acquired by the above process, ClipMa
Create information for rk () (Fig. 5).

In step S17, the control section 17
The Clip Information file and Cli are written to the writing unit 18.
p Instructs recording of AV stream file. Based on this instruction, the writing unit 18 records these files on the recording medium 10.

Next, with reference to FIG. 8, a method for the moving picture recording / reproducing apparatus to create a PlayListMark will be described.

In step S31, the number of users
When the PlayList is instructed to be reproduced, this instruction is input from the user interface to the control unit 17 via the terminal 27.

In step S32, the control section 17
The reading unit 11 is instructed to start reproduction of the PlayList instructed in the process of step S31.

In step S33, the user operates the user interface to instruct the control section 17 from the terminal 27 to set a mark at a desired scene position.

At step S34, the control section 17
The process corresponding to the instruction of step S33 is executed. That is, the mark type, the time stamp, and the PlayItem_id of the PlayItem to which the time stamp belongs are acquired (mark_type, mark_time_stamp, ref_to_PlayItem_id
Etc. are acquired) (FIG. 4).

In step S35, the control section 17
It is determined whether the mark type is a section type mark. When the mark type is the section type mark, the process proceeds to step S36, and the user
Designate the section indicated by the mark. For example, the user
Designate the start and end points of the section. Step S37
In, the control unit 17 acquires the information (duration) of the section instructed in the process of step S36.

When it is determined in step S35 that the mark is not a section type mark, the processes of steps S36 and S37 are skipped.

In step S38, the control section 17
When private data (makers_private_data) is recorded, it is input from the terminal 27 via the user interface, so that it is acquired.

In step S39, the control section 17
Through the above processing, PlayLi based on the acquired data
Create stMark () (Fig. 4) information.

In step S40, the control section 17
It controls the writing unit 18 to instruct to record the PlayList file. The writing unit 18 records the PlayList file in the recording medium 10 based on this instruction.

Further, with reference to FIG. 9, the moving picture recording / reproducing apparatus uses a PlayListMark of a type indicating a section or
The process of playing a PlayList using ClipMark will be described.

In step S61, the user gives an instruction to reproduce one PlayList. This instruction is input to the control unit 17 via the terminal 27 from the user interface, as in the case described above.

In step S62, the user further instructs the control unit 17 to perform a predetermined reproduction method using a mark of the type indicating a section. For example, an instruction to skip a predetermined section is given here.

In step S63, the control section 17
PlayLi related to the PlayList designated in step S61
Information on stMark (FIG. 4) and ClipMark (FIG. 5) is acquired. As described above, these are recorded on the recording medium 10 by the processing of FIG. 7 or 8.

In step S64, the control section 17
The mark data necessary for the predetermined reproduction method instructed in the process of step S62 is acquired from the information acquired in the process of step S63.

In step S65, the control section 17
The reading unit 11 is controlled to reproduce the AV stream from the recording medium 10 based on the time stamp and duration of the mark. Based on this control, the reading unit 11 reproduces the AV stream in the designated range from the recording medium 10.

In step S66, the control section 17
The reproduced image is processed based on the makers_private_data of the mark.

Note that this embodiment has been described by taking an MPEG2 transport stream as an example of a multiplexed stream, but the present invention is not limited to this, and can be applied to a DSS transport stream and an MPEG2 program stream. is there.

Further, in the present embodiment, Clip Informati
Although the on file and the PlayList file are managed as separate files, these pieces of information may be managed as one file. For example, in one file
You may manage the object which collected ClipMark information and the object which collected PlayListMark.

Furthermore, it is not always necessary to manage the data in the form of a file (the data is managed using the file system), and it is sufficient that the data can be managed in a form that can be managed by the moving image recording / reproducing apparatus.

As described above, it is possible to easily manage the recording / reproduction of the reproduction section. That is, when the playback section is selected, it is not necessary to use two marks (start mark and end mark) to indicate that section, so the number of mark information does not increase, and the two marks indicating the section are not used. Since it is not necessary to manage the marks in pairs, the mark management method facilitates recording and reproduction. Moreover, since it is not necessary to separately create a playlist that the user does not want, a user interface that is easy for the user to understand can be provided.

Further, it is possible to give the mark unique information of the maker of the moving picture recording / reproducing apparatus.

The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processes is executed by software, a program that constitutes the software executes a variety of functions by installing a computer in which dedicated hardware is installed or various programs. It is installed from a network or a recording medium into a general-purpose personal computer or the like capable of performing the above.

This recording medium, as shown in FIG.
A magnetic disk 41 (including a floppy disk) on which a program is recorded, which is distributed in order to provide the program to the user separately from the apparatus body, and an optical disk 42.
(CD-ROM (Compact Disk-Read Only Memory), DVD (Digita
(including Versatile Disk)), magneto-optical disk 43 (M
D (including Mini-Disk)) or semiconductor memory 44
Etc. (These are drives 31 that are connected as needed.
Driven by a hard disk (not shown), which is provided by the user in the state of being pre-installed in the main body of the device. To be done.

In the present specification, the steps for writing the program recorded on the recording medium are not limited to the processing performed in time series in the order described, but are not necessarily performed in time series. It also includes processing executed in parallel or individually.

Further, in the present specification, the system means
It represents the entire apparatus composed of a plurality of devices.

[0122]

According to the present invention, when a user selects an arbitrary reproduction section from a playlist and realizes a function of giving a special meaning to the section, management of recording and reproduction of the reproduction section is realized. Can be done easily.

When a moving image in an arbitrary characteristic reproduction section is selected from the input AV stream and a function of giving a special meaning to the section is realized, recording / reproduction management of the reproduction section is managed. It will be easy to do.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a simplified structure of an application format on a recording medium used in a recording / reproducing system.

FIG. 2 is a diagram illustrating marks on a PlayList.

FIG. 3 is a diagram illustrating marks on a Clip.

FIG. 4 is a diagram illustrating the syntax of PlayListMark ().

FIG. 5 is a diagram illustrating the syntax of ClipMark ().

FIG. 6 is a block diagram showing a configuration of a moving image recording / reproducing apparatus.

FIG. 7 is a flowchart illustrating a method of creating ClipMark.

FIG. 8 is a flowchart illustrating a method of creating a PlayListMark.

[Fig. 9] Fig. 9 is a flowchart illustrating a reproducing method using PlayListMark / ClipMark of a type indicating a section when reproducing a PlayList.

[Explanation of symbols]

10 recording medium, 11 read unit, 12 demodulation unit, 14 source depacketizer, 15 demultiplexer, 16 AV decoder, 17 control unit, 1
8 writing section, 19 modulation section, 21 source packetizer, 22 multiplexer, 23 AV encoder, 24 signal analysis section

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 590000248             Konin Krekka Phillips Elek             Tronics NV             Konlinkijke Philips               Electronics N.M. V.             Netherlands 5621 Beer Aindow             Fennefleune Wautzwach 1             Groenwoodseweg 1,             5621 BA Eindhoven, Th             e Netherlands (72) Inventor Motoki Kato             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Masanobu Nakamura             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Kazuhiko Nakamura             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Tomotaka Yagi             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Declan Patrick Kelly             Netherlands 5656 aer ind             Fenprof Holstraan 6 (72) Inventor Willem Jacobs van Hestel             Netherlands 5656 aer ind             Fenprof Holstraan 6 F-term (reference) 5C052 AA02 AC08 CC11 DD04                 5C053 FA24 GA11 GB06 GB09 GB15                       GB37 HA29 JA24                 5D044 AB05 AB07 BC08 DE39 FG18                       FG23 GK12                 5D077 AA21 BA08 CA02 DC08 DC22                       DC25 EA04 EA31                 5D110 AA17 AA29 BB01 DA12 DA18                       DB05 DC05 DE01 EA06

Claims (20)

[Claims] 1. A detection means for detecting a moving image in a characteristic reproduction section from an input AV stream, and a clip mark having a time stamp of a reproduction start point of the reproduction section and a duration of the reproduction section. An information processing apparatus comprising: a generation unit and a recording unit that records the clip mark on an information recording medium. 2. The method according to claim 1, further comprising an acquisition unit that acquires extension data, wherein the generation unit adds the extension data acquired by the acquisition unit to the clip mark. Information processing equipment. 3. A detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, and a clip mark having a time stamp of a reproduction start point of the reproduction section and a duration of the reproduction section. An information processing method comprising: a generating step; and a recording step of recording the clip mark on an information recording medium. 4. A detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, and generating a clip mark having a time stamp of a reproduction start point of the reproduction section and a duration of the reproduction section. A program storage medium storing a computer-readable program, comprising: a generation step and a recording step of recording the clip mark on an information recording medium. 5. A detection step of detecting a moving image in a characteristic reproduction section from an input AV stream, and generating a clip mark having a time stamp of a reproduction start point of the reproduction section and a duration of the reproduction section. A program that causes a computer to execute a generation step and a recording step of recording the clip mark on an information recording medium. 6. An information recording medium on which an AV stream is recorded, and a clip mark having a time stamp of a reproduction start point of a characteristic reproduction section detected from the AV stream and a duration of the reproduction section is recorded. An information recording medium characterized in that. 7. Information for reproducing an information recording medium on which an AV stream, a clip mark having a time stamp of a characteristic reproduction section reproduction start point detected from the AV stream and a duration of the reproduction section are recorded. In the processing device, an acquisition unit that acquires the clip mark from the information recording medium, and a control unit that controls processing of information recorded on the information recording medium based on the clip mark acquired by the acquisition unit. An information processing device comprising: 8. An information recording medium on which an AV stream, a time stamp of a reproduction start point of a characteristic reproduction section detected from the AV stream, and a clip mark having a duration of the reproduction section are recorded are reproduced. In an information processing method of an information processing device, an acquisition step of acquiring the clip mark from the information recording medium, and information recorded on the information recording medium based on the clip mark acquired by the processing of the acquisition step. An information processing method, comprising: a control step for controlling the processing of. 9. An information recording medium on which an AV stream, a clip mark having a time stamp of a reproduction start point of a characteristic reproduction section detected from the AV stream and a duration of the reproduction section is recorded is reproduced. A program of an information processing apparatus, wherein an acquisition step of acquiring the clip mark from the information recording medium, and information recorded in the information recording medium based on the clip mark acquired by the processing of the acquisition step And a control step for controlling the process of step 1. A program storage medium storing a computer-readable program. 10. An information recording medium on which an AV stream, a time stamp of a reproduction start point of a characteristic reproduction section detected from the AV stream, and a clip mark having a duration of the reproduction section are recorded are reproduced. An acquisition step of acquiring the clip mark from the information recording medium in a computer controlling the information processing apparatus; and information recorded in the information recording medium based on the clip mark acquired by the processing of the acquisition step. A program for executing a control step for controlling the processing of. 11. A first acquisition unit for acquiring an arbitrary reproduction section instructed by a user from a play list defining a combination of predetermined sections in the AV stream, and a time stamp of a start point of the reproduction section. An information processing apparatus comprising: a generation unit configured to generate a playlist mark including a set of the duration of the reproduction section and a recording unit configured to record the playlist mark on an information recording medium. 12. The apparatus further comprises second acquisition means for acquiring extension data, wherein the generation means adds the extension data acquired by the second acquisition means to the playlist mark. The information processing device according to claim 11. 13. An acquisition step of acquiring an arbitrary reproduction section instructed by a user from a playlist defining a combination of predetermined sections in an AV stream, a time stamp of a start point of the reproduction section, and An information processing method comprising: a generation step of generating a play list mark composed of a set of a duration of a reproduction section; and a recording step of recording the play list mark on an information recording medium. 14. An acquisition step of acquiring an arbitrary reproduction section designated by a user from a playlist defining a combination of predetermined sections in an AV stream, a time stamp of a start point of the reproduction section, and A computer-readable program is stored, comprising: a generation step of generating a play list mark composed of a set of a duration of a reproduction section; and a recording step of recording the play list mark on an information recording medium. Program storage medium. 15. An acquisition step of acquiring an arbitrary reproduction section instructed by a user from a playlist defining a combination of predetermined sections in an AV stream, a time stamp of a start point of the reproduction section, and A program that causes a computer to execute a generation step of generating a playlist mark composed of a set of a duration of a reproduction section and a recording step of recording the playlist mark on an information recording medium. 16. An information recording medium on which an AV stream is recorded, wherein a time stamp of a start point of an arbitrary reproduction section designated by the user from a playlist defining a combination of predetermined sections in the AV stream. And a playlist mark consisting of a set of the reproduction duration and the duration of the reproduction section. 17. A time stamp of the start point of an arbitrary reproduction section designated by the user from among a playlist defining a combination of an AV stream and a predetermined section in the AV stream, and a duration of the reproduction section. An information processing device for reproducing an information recording medium having a playlist mark recorded therein, the acquiring unit acquiring the playlist mark from the information recording medium, and the acquiring unit acquired by the acquiring unit. An information processing apparatus comprising: a control unit that controls processing of information recorded on the information recording medium based on a playlist mark. 18. A time stamp of the start point of an arbitrary playback section designated by the user from an AV stream and a playlist defining a combination of predetermined sections in the AV stream, and a duration of the section. An information processing method of an information processing apparatus for reproducing an information recording medium on which a playlist mark composed of a set of the following is recorded, the acquisition step of acquiring the playlist mark from the information recording medium; And a control step of controlling the processing of the information recorded on the information recording medium based on the playlist mark acquired by the information processing method. 19. A time stamp of the start point of an arbitrary reproduction section designated by the user from among a playlist defining a combination of an AV stream and a predetermined section in the AV stream, and a duration of the reproduction section. A program of an information processing apparatus for reproducing an information recording medium on which a playlist mark composed of a set is recorded, the acquisition step of acquiring the playlist mark from the information recording medium, and the processing of the acquisition step And a control step for controlling processing of information recorded on the information recording medium based on the obtained playlist mark, the program storage medium storing a computer-readable program. . 20. A time stamp of the start point of an arbitrary reproduction section designated by the user from an AV stream and a playlist defining a combination of predetermined sections in the AV stream, and a duration of the reproduction section. A computer that controls an information processing device that reproduces an information recording medium on which a playlist mark composed of the following is recorded, an acquisition step of acquiring the playlist mark from the information recording medium, and a process of the acquisition step. And a control step for controlling processing of information recorded on the information recording medium based on the obtained playlist mark.