JP2007081835A - Video editing apparatus and video editing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate production of a play list where the reproduction order of chapters is registered. <P>SOLUTION: A video image editing device is equipped with a first means for acquiring the name of a chapter from a recording medium, where a title is recorded including video image information that is divided into chapters by information which indicates the boundaries for which names can be set up; a second means for choosing whether the acquired name is added to the play list, a third means for adding the chapter chosen by the second (choosing) means to the play list; and a fourth means for forming the play list, by subjecting the top chapter to the last chapter successively to processings by the use of the acquiring means, determining means and adding means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a video editing apparatus and a video editing method suitable for editing video information recorded on a recording medium such as an optical disk.

  As is well known, in recent years, high-density recording technology of information has been promoted, and an optical disc having a recording capacity of 4.7 GB (Giga Byte) per layer on one side has been put into practical use.

  As this optical disk, for example, a reproduction-only DVD-ROM (Digital Versatile Disk-Read Only Memory), a rewritable DVD-RAM (Random Access Memory), a DVD-RW (Rewritable), and a recordable DVD-R ( Recordable).

  By the way, in a recording / reproducing apparatus for recording / reproducing video information on / from a recordable optical disc, the video information recorded on the optical disc can be arbitrarily moved in units of titles or chapters which are partial areas of titles. By performing the combination, editing processing such as changing the reproduction order can be performed.

Japanese Patent Application Laid-Open No. 2004-228561 uses a plurality of program titles for audio and video and their auxiliary information to automatically search and select programs and titles in the same category and to control the playback order of the programs and titles. A technique for creating a list and writing to a recording medium is described.
JP 2002-313070 A

  However, in the method described in the above-mentioned document, the playback order of the chapters that make up the program title is not mentioned. For example, when creating a playlist from which a commercial or the like is deleted, the user himself / herself The operation of searching for and selecting a portion having a mark must be repeatedly performed, so that the operation method has to be learned and has the disadvantage of requiring labor.

  An object of the present invention is to provide a video editing apparatus and a video editing method that make it easy to create a playlist in which the playback order of chapters is registered.

  The video editing apparatus according to an example of the present invention obtains the name of the chapter from a recording medium on which a title including video information divided into chapters by information indicating boundaries where names can be set is recorded. And means for selecting whether to add to the playlist according to the acquired name, means for adding the chapter selected by the selection means to the playlist, and the last chapter from the first chapter of the title And a means for creating a playlist by causing the chapter to sequentially perform processing using the acquisition means, determination means, and addition means.

  It is possible to easily create a playlist in which the playback order of chapters is registered.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the configuration of a video editing apparatus according to an embodiment of the present invention will be described with reference to FIG. This video editing apparatus is realized as a recording / reproducing apparatus 1.

  As shown in the figure, the recording / reproducing apparatus 1 includes a control unit 11, ROM 12, RAM 13, operation unit 14, TV tuner unit 15, signal processing unit 16, hard disk drive 17, media drive 18, and remote control receiver 20. The data bus 21 is connected.

  Also in the recording / reproducing apparatus 1, the control unit 11 is configured to include, for example, a microcomputer, and controls each functional circuit unit in the recording / reproducing apparatus 1. The ROM 12 stores necessary information such as a program to be executed by the control unit 11 and initial setting information. Note that the ROM 12 in this case is assumed to be configured using a rewritable memory element while retaining the stored contents until the power supply is stopped. The RAM 13 stores and holds data referred to when the control unit 11 executes various processes, data generated by the control unit 11 during the process, and the like.

  Moreover, the operation part 14 consists of an operation element provided in a main body, for example. In response to an operation performed on the operation unit 14, the control unit 11 executes a required control process. Further, the recording / reproducing apparatus 1 is controlled by using the remote control device 3. The control is performed by receiving a signal from the remote control device 3 by the remote control receiver 20 and supplying the received signal to the control unit 11.

  The TV tuner unit 15 receives a broadcast wave of a broadcast station received by the antenna 15A, for example, and selects a channel according to the instruction under the control of the control unit 11. The broadcast wave received and selected in this way is output to the signal processing unit 16 as stream data, for example. The signal processing unit 16 extracts necessary program (channel) data from the input stream data to obtain, for example, compressed video data (including compressed audio data). The compressed video data obtained in this way is transferred and stored in the hard disk drive 17 for recording under the control of the control unit 11, for example.

  Further, for example, when a reproduction operation is performed on the operation unit 14, the control unit 11 searches a recorded file instructed to be reproduced from recorded files stored in the hard disk drive 17, and stores the recorded file. Control is performed so that reading is performed. The compressed video data as the recording file read out in this way is output to the signal processing unit 16. The signal processing unit 16 also has a function of decoding (decompressing) and outputting compressed video data. By performing the decoding process, for example, a moving image signal and an audio signal synchronized with the moving image signal are obtained. It is done. In this case, the moving image signal and the audio signal are output to the AV output terminal AVout. For example, if these AV output terminals AVout are connected to an external video device 18, video and audio as a recorded program reproduced from the hard disk drive 17 by this video device 18 is output.

  The hard disk drive 17 includes a hard disk having a predetermined capacity as a recording medium, and also includes a driver unit that executes writing and reading of data on the hard disk. As is well known, a hard disk is a medium that can easily realize a relatively large storage capacity. In this case as well, the hard disk provided in the hard disk drive 17 has a predetermined large storage capacity. is doing. In the case of the present embodiment, the hard disk drive 17 has a format in which video signal data received by the TV tuner unit 15 and encoded by the signal processing unit 16 as described above is managed as a recorded program file. Memorized and saved. In addition, data read from the disk medium 2 loaded in the media drive 18 described later can also be stored in the hard disk drive 17. Furthermore, an application program to be executed by the control unit 11 is also stored.

  The media drive 18 is a disc drive that can perform recording and reproduction corresponding to the disc media 2. Data writing and reading with respect to the media drive 18 are also executed under the control of the control unit 11.

  The content data read from the disk media 2 by the media drive 18 includes, for example, video signal data obtained by program recording. Then, the video signal data read from the disk medium 2 is reproduced and output. For this purpose, a signal processing unit 16 is provided.

  For example, video / audio signal data read from the disk drive 18 is transferred to the signal processing unit 16 under the control of the control unit 11. The signal processing unit 16 performs necessary demodulation processing on the transferred video / audio signal data to obtain, for example, moving image data and an audio signal synchronized with the moving image signal. Then, the moving image signal and the audio signal are output to the AV output terminal AVout. For example, if these AV output terminals AVout are connected to an external video device 18, video and audio as a recorded program reproduced from the disk media 2 by the video device 18 is output.

  Here, the relationship between the management information of the real-time DVD (DVD-VR standard) and the video object as the content will be briefly described.

  In FIG. 2, first, the video object VOB will be described. This VOB is VR_MOVIE. It is called a VRO file. A video file has a hierarchical structure. One file is composed of one or a plurality of VOBs, one VOB is composed of one or a plurality of video object units VOBU, and one VOBU is composed of a plurality of packs. Is done. As the plurality of packs, there are an RDI pack, a V (video) pack, an A (audio) pack, an SP (sub-picture) pack, and the like. The RDI pack is referred to as a unit control information pack, a navigation information pack, or a real-time data information pack RDI_PCK. This pack includes information indicating the start time of reproduction of the first field of the VOBU to which the pack belongs, information indicating the recording time of the VOBU, manufacturer information MNFI, and the like. It also includes display control information DCI and copy control information CCI. The display control information indicates aspect ratio information, subtitle mode information, and film camera mode information. The copy control information includes copy permission information or copy prohibition (non-permission) information. The V pack is a video data compressed by the MPEG2 system, and is composed of a pack header, a packet header, and a video data portion. The A pack is obtained by processing audio data by a method such as linear PCM, MPEG, or AC-3, and includes a pack header, a packet header, and an audio data portion.

  The management information is called a video manager VMG, and a program chain PGC for managing the data reproduction order is defined therein. A cell is defined in the program chain PGC. A cell is linked to video object information VOBI, which is information about a video object VOB to be reproduced.

  A part where specific information of PGC is recorded is program chain information PGCI. There are two types of PGCI, one is original PGCI (ORG_PGCI), and the other is user-defined program chain information (UD_PGCI). Normally, an original PGCI is created during recording. The user-defined PGCI does not have its own video object, and edits (deletes or adds) the user-defined cell UD_Cell linked to the video object information VOBI of the original PGC as shown in FIG. Is created as a playlist.

  A time map TMAP is described in VOBI, and this TMAP designates a VOBU constituting a VOB corresponding to VOBI. The link from the cell to the VOBI is specified by a logical address. The link from the TMAP information to the VOB and VOBU is performed based on the VOB stream number, the number of VOBUs in this VOB, the entry number for each VOBU, and the logical address to each target VOBU.

  Next, the hierarchy of the program chain information PGCI in the management information will be described with reference to FIGS. As described above, there are two types of program chain information: original program chain information ORG_PGCI and user-defined program chain information table UD_PGCIT. ORG_PGCI is management information automatically created when the original program is recorded by the data recording / reproducing apparatus, and there is one type per disc. On the other hand, UD_PGCI is management information as a playlist created by a user arbitrarily designating a part of a plurality of recorded original programs and setting the playback order. Therefore, a plurality of UD_PGCIs can be set.

  FIG. 3 shows a hierarchical structure of the original program chain information ORG_PGCI. The original program chain information ORG_PGCI includes program chain general information PGC_GI, program information PGI, cell information search pointer CI_SRP, and cell information CI.

  PGC_GI describes the number of programs PG_Ns indicating how many programs to be reproduced by the program chain exist, and the number of cell search pointers CI_SRP_Ns indicating how many cell search pointers exist. In the example of FIG. 3, program information PGI # 1 to PGI # m exist, and each PGI corresponds to a program having an original title. In addition, cell search pointers CI_SRP # 1 to CI_SRP # n exist.

  The program information PGI includes a program type PG_TY, the number of cells C_Ns of this program, and representative image information REP_PICTI of this program. The representative image information REP_PICTI describes the cell number of the representative image and the picture point in this cell.

  The cell search pointer CI_SRP indicates the description address of the corresponding cell information CI. The description contents of the cell information CI will be described separately for a movie cell and a still cell.

  First, in the case of a movie cell, the cell information includes movie cell general information M_C_GI and movie cell entry information M_C_EPI. The cell cell general information M_C_GI includes a cell type C_TY indicating whether it is a movie or a still, M_VOBI_SRPN for indicating the VOB specified by this cell, and cell entry point information indicating how many cell entry points there are. The number C_EPI_Ns is described. Further, C_V_S_PTM indicating the start time of video corresponding to this cell and C_V_E_PTM indicating the end time are also described. The movie cell entry point information M_C_EPI describes an entry point type EP_TY and an entry point presentation time EP_PTM.

  In the case of a still cell, the contents described are almost the same as those of the movie cell. However, in the case of a still, since a cell is linked to a VOB group VOG including at least one VOB, it is represented as S_VOGI_SRPN. Further, instead of the presentation time PTM, S_S_VOB_ENTN indicating the start VOB number of the VOB group VOG corresponding to the still cell and E_S_VOB_ENTN indicating the end VOB number are described. Also in the still cell entry point information S_C_EPI, a still VOB entry number S_VOB_ENTN is described instead of the PMT. Similarly, in the description of the representative image information REP_PICTI of the above program, when a movie cell is designated as a cell in which a representative image exists, PTM is designated as a picture point in the cell, and a still cell is designated. A still VOB entry number S_VOB_ENTN is described as a picture point in the cell.

  FIG. 4 shows the hierarchical structure of the user defined program information table UD_PGCIT. The user-defined program chain information table UD_PGCIT includes user-defined program chain information table information UD_PGCITI, user-defined program chain information search pointer UD_PGCI_SRP, and user-defined program chain information UD_PGCI. UD_PGCITI describes the number of search pointers indicating how many user-defined program chain information search pointers exist (not shown in FIG. 4, but abbreviated as UD_PGCI_SRP_Ns).

  The user-defined program chain information search pointer UD_PGCI_SRP indicates the description address of the corresponding user-defined program chain information UD_PGCI. In the example shown in FIG. 4, user defined program chain information UD_PGCI # 1 to UD_PGCI # m exist.

  In the video manager VMG, which is management information, playlist information is described at a location different from the program chain information. In each piece of playlist information, the number PGCN of the user-defined program chain information search pointer UD_PGCI_SRP linked to the playlist is described. For this reason, as program chain information, each UD_PGCI corresponds to a playlist. The format of this user-defined program chain information UD_PGCI is almost the same as the original program chain information ORG_PGCI described above with reference to FIG. However, since the UD_PGCI is configured by combining any part of the original program, the program information PGI described above does not exist in the UD_PGCI. For this reason, the playlist type PL_TY and the representative image information REP_PICTI of the playlist are described in the playlist information described in a place different from the program chain information described above. Therefore, in this embodiment, the playlist type and the representative image information of the playlist are used. Since the cell information has the same format as ORG_PGCI, description thereof is omitted here.

  FIG. 5 shows the structure of entry point information in the DVD-VR (Video Recorder) standard. There are two types of entry point information: Type A shown in FIG. 5A and Type B shown in FIG. 5B. The entry point of Type A is composed of EP_TY indicating the type of entry point and EP_PTM in which the PTM indicated by the entry point is recorded.

  Type B entry point includes primary text information PRM_TXTI in addition to the entry point. PRM_TXTI is defined by 128 bytes, and is composed of a first field 64 bytes and a second field 64 bytes. An ASCII (American Standard Code for Information Interchange) code must be set in the first field, and the second field must be described using the character set specified in VMGI_MAT.

  In the case of DVD media in the DVD-VR format, 999 entry points can be created in one disc. A section between the entry points is generally called a chapter, and the entry point at the head of the chapter indicates this chapter. Of these 999 entry points, Type B entry points can be created for 99 entry points. This restriction does not apply to other recording media such as HDDs.

  Here, the text input in the second field of this Type B entry point is regarded as the chapter name of the chapter indicated by this entry point.

  In the apparatus of the present embodiment, it is possible to acquire a chapter name of a chapter and create a playlist corresponding to the chapter name. A system for creating a playlist according to a chapter name will be described with reference to the block diagram of FIG.

  The chapter name acquisition unit 101 acquires the chapter name from the second field of the primary text information PRM_TXTI included in the entry point described in the original PGCI (ORG_PGCI) of the title stored in the disk medium 2 or the hard disk drive 17, and acquires the acquired chapter name. The name is passed to the chapter name discrimination unit.

  The chapter name discriminating unit 102 discriminates whether the chapter name acquired by the chapter name acquiring unit is the same as the set name or the established name, and controls the discriminant result for playlist creation control. Supplied to the unit 104.

  The chapter number detection unit 103 detects the number of chapters included in the title stored in the disk medium 2 or the hard disk drive 17, and supplies the detection result to the playlist creation control unit 104.

  The playlist creation control unit 104 instructs the playlist creation unit 106 to add chapters to the playlist according to the discrimination result of the chapter eye discrimination unit. Alternatively, the control unit increases the count value of the counter 105 by 1 according to the determination result of the chapter name determination unit 102.

(Create playlist with chapters other than specific names registered)
As an example, FIG. 7 shows an image diagram of creation of a playlist in which chapters other than the chapter name “CM” are registered from the original content. With this function, it is possible to create a playlist with only the CM cut.

  By analyzing the received television broadcast signal and detecting the monaural / stereo change point of the audio signal, the chapter division is performed at the switching position between the main program and the CM, and the CM section chapter also displays “CM”. It is advisable to provide a mechanism that automatically assigns the chapter name “

  To create a playlist in which chapters other than the chapter name “CM” are registered, select one title from the title list screen shown in FIG. 8 displayed on the video device 18 and select “Create main playlist automatic playlist”. To do.

  FIG. 9 shows a flowchart of the playlist automatic creation function corresponding to the chapter name.

The playlist creation control unit 104 sets the chapter number n in the counter 105 to 1 and sets the chapter registration number m to 0 (step S11). The chapter number detection unit 103 acquires the maximum number of chapters n _max of the content, and supplies the acquisition result to the chapter number detection unit 103 (step S12).

The playlist creation control unit 104 determines whether the chapter number n is larger than the maximum chapter number n _max (step S13). When the chapter number n is n _max or less (No in step S13), the chapter name acquisition unit 101 determines the chapter name, and the chapter name determination unit 102 determines whether the chapter name with the chapter number n is CM. Then, the determination result is supplied to 104 (step S14). When the name of the n-th chapter is not CM (No in step S14), the playlist creation control unit 104 increments the chapter registration count m in the counter 105 by 1 (step S15). After performing the process of step S15 or when it is determined in the process of step S14 that the nth chapter name is CM (Yes in step S14), the playlist creation control unit 104 determines the chapter number n in the counter. Is incremented by 1 (step S16).

  The loop process of step S13 to step S16 is performed until it is determined in the process of step S13 that the chapter number is larger than the maximum number of chapters. In this loop processing, the chapter names are sequentially examined, and when the chapter name is not CM, the chapter registration number m is incremented by 1, thereby detecting the number of chapters whose chapter name is not CM.

When it is determined in step S13 that the chapter number n is greater than the maximum number of chapters n _max , the playlist creation control unit 104 determines whether the chapter registration number m is 0 (step S17). When it is determined that the chapter registration number m is not 0, the playlist creation control unit 104 determines whether or not the chapter registration number m is equal to the maximum chapter number _nmax (step S18).

In the processing of step S17 if the chapter registration number m is determined to be 0 (Yes in step S17), if the chapter registration number m is determined to be equal to the maximum number of chapters n _max in the process of step S18 (step S18 Yes), the playlist creation control unit 104 processes that the creation of the playlist has failed (step S19).

An error check is performed in the processing of step S17 and step S18. In the process of step S <b> 17, when it is determined that the chapter registration number m is 0, it means that there is no chapter to be registered in the playlist, and thus an error occurs. Also, in the process of step S18, it is determined that the chapter registration number m and the maximum chapter number n _max are equal. This means that the original playlist is the same as the playlist to be created, and a new one is newly created. Since it is not necessary to create a special playlist, it is processed as an error.

After the error check, if it is determined in step S18 that the number of registered chapters m and the maximum number of chapters n _max are not equal (No in step S18), the playlist creation control unit 104 determines the chapter number n in the counter. Is set to 1 (step S20).

It is determined whether or not the chapter number n is larger than the maximum chapter number n _max (step S21). When the chapter number n is less than or equal to the maximum number of chapters n _max (No in step S21), the chapter name acquisition unit 101 acquires the chapter name of the chapter number n (step S22).

  The chapter name determination unit 102 determines whether or not the chapter name of chapter number n is CM (step S23). If the chapter name is not CM (No in step S23), the playlist creation control unit 104 instructs the playlist creation unit 106 to register the chapter number n in the playlist, and the playlist creation unit 106 selects the playlist. Finally, chapters are registered (step S24).

  When it is determined in the process of step S23 that the chapter name of chapter number n is CM (Yes in step S23), or after performing the process of step S24, the playlist creation control unit 104 sets n in the counter 105. Is incremented by 1 (step S25).

After performing the process of step S25, the loop process of step S21 to step S25 is performed until it is determined in the process of step S21 that the chapter number n is equal to the maximum number of chapters n _max .

  In this process, a playlist is created in which the chapter names are not CMs, that is, only the chapters of the main part are collected. Even if the user assigns a name to a chapter in the main story, a chapter whose chapter name is not CM is selectively registered in the playlist, so that it can be surely included in the playlist.

When it is determined in step S21 that the chapter number n is equal to the maximum number of chapters n _max (Yes in step S21), the playlist creation unit 106 performs an update process of the created playlist IFO (step S26). ), The creation of the playlist is completed (step S27).

  After the above processing, if there is a chapter that matches the playlist registration condition in the title, a new playlist is added to the title list as shown in FIG.

  Through the processing described above, a playlist in which chapters having names other than CMs are registered can be automatically created. As a result, it becomes easy to create a playlist in which the chapter playback order is registered.

(Create playlist with only specific names registered)
Next, an example of creating a playlist in which only chapters matching the conditions are registered will be described. As an example, FIG. 11 shows an image diagram of creating a playlist in which only the chapter with the chapter name “music” is registered from the original content. With this function, it is possible to create a playlist in which only the music program tunes are collected.

  In order to create a playlist in which a chapter with the chapter name “music” is registered, one title is selected from the title list screen shown in FIG. 8 and “Create Music Program Playlist” is selected.

FIG. 12 shows a flowchart of the playlist automatic creation function according to the chapter name. The playlist creation control unit 104 sets the chapter number n in the counter 105 to 1 and sets the chapter registration number m to 0 (step S31). The chapter number detection unit 103 acquires the maximum number of chapters n _max of the content, and supplies the acquisition result to the chapter number detection unit 103 (step S32).

The playlist creation control unit 104 determines whether the chapter number n is larger than the maximum chapter number n _max (step S33). When the chapter number n is n _max or less (No in step S33), the chapter name acquisition unit 101 determines the chapter name, and the chapter name determination unit 102 determines whether or not the chapter name of the chapter number n is musical. (Step S34). If the nth chapter name is musical (Yes in step S34), the playlist creation control unit 104 increments the chapter registration count m in the counter 105 by 1 (step S35). After performing the process of step S35 or when it is determined in the process of step S34 that the nth chapter name is not musical (No in step S34), the playlist creation control unit 104 determines the chapter number n in the counter. Is incremented by 1 (step S36).

  The loop process of step S33 to step S36 is performed until it is determined in the process of step S33 that the chapter number is greater than the maximum number of chapters. In this loop processing, the chapter names are sequentially examined, and when the chapter name is musical, the number of chapter registrations m is incremented by 1 to detect the number of chapters whose chapter name is musical.

When it is determined in step S33 that the chapter number n is larger than the maximum number of chapters n _max , the playlist creation control unit 104 determines whether or not the chapter registration number m is 0 (step S37). When it is determined that the chapter registration number m is not 0, it is determined whether or not the chapter registration number m is equal to the maximum chapter number _nmax (step S38).

If it is determined in step S37 that the chapter registration number m is 0 (Yes in step S37), if it is determined in step S38 that the chapter registration number m is equal to the maximum chapter number n _max (step S38). Yes), the playlist creation control unit 104 processes that the creation of the playlist has failed (step S39).

An error check is performed in the processing of step S37 and step S38. In the process of step S <b> 37, when it is determined that the chapter registration number m is 0, it means that there is no chapter to be registered in the playlist, and thus an error occurs. Also, in the process of step S38, it is determined that the chapter registration number m and the maximum chapter number n _max are equal. This means that the original playlist and the playlist to be created are the same, and a new Since it is not necessary to create a special playlist, it is processed as an error.

After the error check, when it is determined in step S38 that the chapter registration number m and the maximum chapter number n _max are not equal (No in step S38), the playlist creation control unit 104 determines the chapter number n in the counter. Is set to 1 (step S40).

It is determined whether or not the chapter number n is larger than the maximum chapter number n _max (step S41). When the chapter number n is less than or equal to the maximum number of chapters n _max (No in step S41), the chapter name acquisition unit 101 acquires the chapter name of the chapter number n (step S42).

  The chapter name determination unit 102 determines whether or not the chapter name of chapter number n is musical (step S43). When the chapter name is “music” (Yes in step S43), the playlist creation control unit 104 instructs the playlist creation unit 106 to register the chapter number n in the playlist, and the playlist creation unit 106 ends the playlist. The chapter is registered in (Step S44).

  When it is determined in step S43 that the chapter number n is not musical (No in step S43), or after the processing in step S44, the playlist creation control unit 104 sets n in the counter 105. Is incremented by 1 (step S45).

After performing the process of step S45, the loop process of steps S41 to S45 is performed until it is determined in the process of step S41 that the chapter number n is equal to the maximum number of chapters n _max .

  In this process, a playlist whose chapter name is music, that is, a playlist in which only the chapters are collected is created.

If it is determined in step S41 that the chapter number n is equal to the maximum number of chapters n _max (Yes in step S41), the playlist creation unit 106 performs an update process for the created playlist IFO (step S46). ), The creation of the playlist is completed (step S47).

  By the above-described processing, a playlist in which chapters having the name of music are registered can be automatically created. As a result, it becomes easy to create a playlist in which the chapter playback order is registered.

(Create playlists grouped and registered)
Next, an example of creating a playlist that is grouped and registered according to chapter names will be described. As an example, FIG. 13 shows an image diagram of creating a playlist in which a group in which only chapters other than the chapter name “CM” are collected after a group in which only chapters with the chapter name “music” are collected.

FIG. 13 shows an image of creating a playlist in which chapters of “CM” are registered after chapters other than “CM” by this function.

  To create a playlist in which a chapter with the chapter name “music” is registered, one title is selected from the title list screen shown in FIG. 8 and “Create Grouped Playlist” is selected.

  FIG. 14 shows a flowchart of the automatic playlist creation function according to the chapter name.

The playlist creation control unit 104 sets the chapter number n in the counter 105 to 1 and sets the chapter registration number m to 0 (step S51). The chapter number detection unit 103 acquires the maximum number of chapters n _max of the content, and supplies the acquisition result to the chapter number detection unit 103 (step S52).

The playlist creation control unit 104 determines whether or not the chapter number n is larger than the maximum chapter number n _max (step S53). When the chapter number n is n _max or less (No in step S53), the chapter name acquisition unit 101 determines the chapter name, and the chapter name determination unit 102 determines whether the chapter name with the chapter number n is CM. Then, the determination result is supplied to 104 (step S54). When the name of the n-th chapter is not CM (No in step S54), the playlist creation control unit 104 increments the chapter registration count m in the counter 105 by 1 (step S55). After performing the process of step S55 or when it is determined in the process of step S54 that the nth chapter name is CM (Yes in step S54), the playlist creation control unit 104 determines the chapter number n in the counter. Is incremented by 1 (step S56).

  The loop processing of step S53 to step S56 is performed until it is determined in the processing of step S53 that the chapter number is larger than the maximum number of chapters. In this loop processing, the chapter names are sequentially examined, and when the chapter name is not CM, the chapter registration number m is incremented by 1, thereby detecting the number of chapters whose chapter name is not CM.

When it is determined in step S53 that the chapter number n is greater than the maximum number of chapters n _max , the playlist creation control unit 104 determines whether or not the chapter registration number m is 0 (step S57). When it is determined that the chapter registration number m is not 0, the playlist creation control unit 104 determines whether or not the chapter registration number m is equal to the maximum chapter number _nmax (step S58).

In the processing of step S57 if the chapter registration number m is determined to be 0 (Yes in step S57), if the chapter registration number m is determined to be equal to the maximum number of chapters n _max in the process of step S58 (step S58 Yes), the playlist creation control unit 104 processes that the creation of the playlist has failed (step S59).

In the processing of step S57 and step S58, an error check is performed. In the process of step S57, it is determined that the chapter registration number m is 0. This means that there is no chapter whose chapter name is not CM, so that the original playlist and the playlist to be created Since it is not necessary to create a new playlist, it is treated as an error. Further, in the process of step S58, it is determined that the chapter registration number m and the maximum chapter number n _max are equal. This means that all chapters have names CM and there are no chapters whose names are not CMs. By saying that the original playlist and the playlist to be created are the same, it is not necessary to create a new playlist.

After the error check, if it is determined in step S58 that the number of registered chapters m and the maximum number of chapters n _max are not equal (No in step S58), the playlist creation control unit 104 determines the chapter number n in the counter. Is set to 1 (step S60).

It is determined whether or not the chapter number n is greater than the maximum chapter number n _max (step S61). When the chapter number n is equal to or less than the maximum number of chapters n _max (No in step S61), the chapter name acquisition unit 101 acquires the chapter name of the chapter number n (step S62).

  The chapter name determination unit 102 determines whether or not the chapter name with the chapter number n is CM (step S63). If the chapter name is not CM (No in step S63), the playlist creation control unit 104 instructs the playlist creation unit 106 to register the chapter number n in the playlist, and the playlist creation unit 106 selects the playlist. Finally, chapters are registered (step S64).

  When it is determined in the process of step S63 that the chapter name of chapter number n is CM (Yes in step S63), or after performing the process of step S64, the playlist creation control unit 104 sets n in the counter 105. Is incremented by 1 (step S65).

After performing the processing of step S65, the loop processing of step S61 to step S65 is performed until it is determined in step S61 that the chapter number n is equal to the maximum number of chapters n _max .

  In this process, a playlist is created in which the chapter names are not CMs, that is, only the chapters of the main part are collected. Even if the user assigns a name to a chapter in the main story, a chapter whose chapter name is not CM is selectively registered in the playlist, so that it can be surely included in the playlist.

If it is determined in step S61 that the chapter number n is equal to the maximum number of chapters n _max (Yes in step S61), the playlist creation control unit 104 sets the chapter number n in the counter to 1 (step S66). ).

It is determined whether or not the chapter number n is larger than the maximum chapter number n _max (step S67). When the chapter number n is less than or equal to the maximum number of chapters n _max (No in step S67), the chapter name acquisition unit 101 acquires the chapter name of the chapter number n (step S68).

  The chapter name determination unit 102 determines whether or not the chapter name of chapter number n is CM (step S69). When the chapter name is CM (Yes in step S69), the playlist creation control unit 104 instructs the playlist creation unit 106 to register the chapter number n in the playlist, and the playlist creation unit 106 ends the playlist. The chapter is registered in (Step S70).

  When it is determined in step S69 that the chapter name n is not a CM (No in step S69), or after the processing in step S70, the playlist creation control unit 104 sets n in the counter 105. Is incremented by 1 (step S71).

After performing the process of step S71, the loop process of step S67 to step S71 is performed until it is determined in the process of step S67 that the chapter number n is equal to the maximum number of chapters n _max .

  In this process, a playlist having a group in which only CM chapters are collected after a group of chapters whose chapter names are not CMs is created.

When it is determined in step S67 that the chapter number n is equal to the maximum number of chapters n _max (Yes in step S67), the playlist creation unit 106 performs an update process of the created playlist IFO (step S72). ), The creation of the playlist is completed (step S73).

  With the above processing, chapters having names other than CM and chapters having names of CMs can be automatically grouped in one playlist. As a result, it becomes easy to create a playlist in which the chapter playback order is registered.

  Hereinafter, an example in which chapters having names other than CM and chapters having names of CMs are automatically grouped by processing different from the above-described processing will be described.

FIG. 16 shows a flowchart of the play list automatic creation function corresponding to the chapter name. The playlist creation control unit 104 sets the chapter number n in the counter 105 to 1 and sets the chapter registration number m to 0 (step S81). The chapter number detection unit 103 acquires the maximum number of chapters n _max of the content, and supplies the acquisition result to the chapter number detection unit 103 (step S82).

The playlist creation control unit 104 determines whether or not the chapter number n is larger than the maximum number of chapters n _max (step S83). When the chapter number n is equal to or less than n _max (No in step S83), the chapter name acquisition unit 101 determines the chapter name, and the chapter name determination unit 102 determines whether the chapter name with the chapter number n is CM. (Step S84). If the nth chapter name is not CM (No in step S84), the playlist creation control unit 104 increments the chapter registration count m by 1 (step S85). After performing the process of step S85 or when it is determined in the process of step S84 that the nth chapter name is CM (Yes in step S84), the playlist creation control unit 104 increments the chapter number n by 1. (Step S86).

  The loop process of step S83 to step S86 is performed until it is determined in the process of step S83 that the chapter number is greater than the maximum number of chapters. In this loop processing, the chapter names are sequentially examined, and when the chapter name is not CM, the chapter registration number m is incremented by 1, thereby detecting the number of chapters whose chapter name is not CM.

When it is determined in step S83 that the chapter number n is larger than the maximum number of chapters n _max , the playlist creation control unit 104 determines whether or not the chapter registration number m is 0 (step S87). When it is determined that the chapter registration number m is not 0, the playlist creation control unit 104 determines whether or not the chapter registration number m is equal to the maximum chapter number _nmax .

When it is determined in step S87 that the chapter registration number m is 0 (Yes in step S87), in step S88, it is determined that the chapter registration number m is equal to the maximum chapter number n _max (step S88). Yes), the playlist creation control unit 104 processes that the creation of the playlist has failed (step S89).

In the processes of step S87 and step S88, an error check is performed. In the process of step S87, it is determined that the chapter registration number m is 0. This means that there is no chapter whose chapter name is not CM, and the original playlist and the playlist to be created Since it is not necessary to create a new playlist, it is treated as an error. Also, in the process of step S88, it is determined that the chapter registration number m and the maximum chapter number n _max are equal. This means that all chapters have names CM and there are no chapters whose names are not CMs. By saying that the original playlist and the playlist to be created are the same, there is no need to create a new playlist, so this is treated as an error (step S89).

If it is determined in step S88 that the chapter registration number m is not equal to the maximum chapter number n _max (No in step S88), the playlist creation control unit 104 sets the chapter number n in the counter to 1, and The registration number m is set to 1 (step S90).

The playlist creation control unit 104 determines whether or not the chapter number n is larger than the maximum chapter number n _max (step S91). When the chapter number n is equal to or less than the maximum number of chapters n _max (No in step S91), the chapter name acquisition unit 101 acquires the chapter name of the chapter number n (step S92).

  The chapter name determination unit 102 determines whether or not the chapter name of chapter number n is CM (step S93). If it is determined that the chapter name is not CM (No in step S93), the nth chapter is instructed to be registered in the mth of the playlist, and the playlist creating unit 106 assigns the chapter to the mth in the playlist. Registration is performed (step S94). After performing the process of step S94, m is incremented by 1 (step S95).

  When it is determined in step S93 that the chapter name of chapter number n is CM (Yes in step S93), the playlist creation control unit 104 causes the playlist creation unit 106 to place the nth chapter at the end of the playlist. Instructing to register, the playlist creating unit 106 registers the chapter at the end of the playlist (step S96).

  After performing the process of step S64 or after performing the process of step S95, the playlist creation control unit 104 increments n by 1 (step S96).

The loop process of step S91 to step S67 is performed until it is determined in the process of step S91 that the chapter number n is equal to the maximum number of chapters n _max .

  In this process, a play list is created in which chapters whose chapter names are not CM and chapters whose chapter names are CM are grouped.

If it is determined in step S91 that the chapter number n is equal to the maximum number of chapters n _max (Yes in step S91), the created IFO is updated (step S98, creation of the playlist is completed (step S98). S99).

  By the above processing, chapters having names other than CM and chapters having CM names can be automatically grouped. As a result, it becomes easy to create a playlist in which the chapter playback order is registered.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a block diagram showing a system configuration of a video editing apparatus according to an embodiment of the present invention. The figure shown in order to demonstrate the video object VOB in DVD-VR specification. The figure shown in order to demonstrate the hierarchy of the program chain information PGCI in management information. The figure shown in order to demonstrate the hierarchy of the program chain information PGCI in management information. The figure which shows the structure of the entry point information in DVD-VR (VideoRecorder) specification. The block diagram which shows the system for producing a play list according to the chapter name concerning the 1st Embodiment of this invention. The figure which shows the image of creation of the play list which registered chapters other than chapter name "CM" from the original content. The figure which shows the title list screen displayed on a video device. The flowchart which shows the procedure of the process for producing the play list which has the chapter which has names other than "CM" from original content. The figure which shows the title list screen displayed on a video device after original content creation. The figure which shows the image of the play list which registered only the chapter of the chapter name "music" from the original content. The flowchart which shows the procedure of the process for producing the play list which has only the chapter which has the name of "music" from the original content. The figure which shows the image of the play list in which the group which collected only the chapters other than the chapter name "CM" was provided after the group which collected only the chapters of the chapter name "music". The flowchart which shows the procedure of the process for producing the play list which has the group which collected only the chapters other than the chapter name "CM" after the group which collected only the chapter of the chapter name "music". The flowchart which shows the procedure of the process for producing the play list which has the group which collected only the chapters other than the chapter name "CM" after the group which collected only the chapter of the chapter name "music". The flowchart which shows the procedure of the process for producing the play list which has the group which collected only the chapters other than the chapter name "CM" after the group which collected only the chapter of the chapter name "music".

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Disc medium, 17 ... Hard disk drive, 101 ... Chapter name acquisition part, 102 ... Chapter name discrimination | determination part, 103 ... Chapter number detection part, 104 ... Playlist creation control part, 105 ... Counter, 106 ... Playlist creation part.

Claims (14)

Means for obtaining the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Means for selecting whether to add to the playlist according to the acquired name;
A means for adding the chapter selected by the selection means to a playlist; and a process using the acquisition means, the selection means, and the addition means for the first chapter to the last chapter of the title. And a means for creating a playlist. Means for obtaining the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Means for determining whether the acquired name is a predetermined name;
When the acquired name is not a predetermined name, the means for adding the chapter to a playlist, and the acquisition means, the determination means, and the addition means for the chapter from the beginning chapter to the end of the title A video editing apparatus comprising: means for creating a playlist by sequentially performing the processes used. Means for detecting the number of chapters of the title;
Means for detecting the number of chapters having a predetermined name among the chapters of the title;
Second determination means for determining whether or not the number of chapters not having the predetermined name is 0;
Third determination means for determining whether or not the number of chapters of the title is equal to the number of chapters not having the predetermined name;
The second determining means determines that the number of chapters not having the predetermined name is 0, or the third determining means is the number of chapters the title has and the number of chapters not having the predetermined name The video editing apparatus according to claim 2, further comprising means for processing that the playlist creation process has failed when it is determined that the playlists are equal. Means for obtaining the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Means for determining whether the acquired name is a predetermined name;
When the acquired name is a predetermined name, the means for adding the chapter to the playlist and the acquisition means, the determination means, and the addition means are used for the first chapter to the last chapter of the title. A video editing apparatus comprising: means for creating a playlist by sequentially performing processing. Means for detecting the number of chapters of the title;
Detecting the number of chapters having a predetermined name among the chapters of the title;
Second determination means for determining whether or not the number of chapters having the predetermined name is zero;
Third determination means for determining whether or not the number of chapters of the title is equal to the number of chapters having a name that is not the predetermined name;
The second determination means determines that the number of chapters having the predetermined name is 0, or the third determination means determines the number of chapters of the title and the number of chapters having the predetermined name. 5. The video editing apparatus according to claim 4, further comprising means for processing that the playlist creation processing has failed when it is determined that the playlists are equal. Means for obtaining the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
A video editing apparatus comprising: means for adding a group to a playlist according to the acquired name. Means for acquiring the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Means for determining whether the acquired name is a predetermined name;
Means for adding the chapter to a first group of a playlist if the acquired name is not a predetermined name;
And a means for adding the chapter to a second group of a playlist when the acquired name is a predetermined name. Executing a name acquisition process for acquiring the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Executing a selection process for selecting whether to add to the playlist according to the acquired name;
Performing an additional process of adding the selected chapter to a playlist;
And a step of creating a playlist by causing the title acquisition process, the selection process, and the addition process to be sequentially performed from the first chapter to the last chapter of the title. Method. Executing a name acquisition process for acquiring the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Executing a determination process for determining whether or not the acquired name is a predetermined name;
When the acquired name is not a predetermined name, the step of performing an additional process of adding the chapter to a playlist, and the name acquisition process for the first chapter to the last chapter of the title, And a step of creating a playlist by sequentially performing a determination process and an addition process. Detecting the number of chapters of the title;
Detecting the number of chapters having a predetermined name among the chapters of the title;
Determining whether the number of chapters not having the predetermined name is 0;
Determining whether the number of chapters of the title is equal to the number of chapters not having the predetermined name;
Creation of the playlist when it is determined that the number of chapters not having the predetermined name is 0, or when it is determined that the number of chapters included in the title is equal to the number of chapters not having the predetermined name The video editing apparatus according to claim 9, further comprising a step of processing that the processing has failed. Executing a name acquisition process for acquiring a name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Executing a determination process for determining whether or not the acquired name is a predetermined name;
When the acquired name is a predetermined name, executing an additional process of adding the chapter to a playlist; and
And a step of creating a playlist by causing the title acquisition process, the selection process, and the addition process to be sequentially performed from the first chapter to the last chapter of the title. Method. Detecting the number of chapters of the title;
Detecting the number of chapters having a predetermined name among the chapters of the title;
Determining whether the number of chapters having the predetermined name is zero;
Determining whether the number of chapters of the title is equal to the number of chapters with names that are not the predetermined names;
Creation of the playlist when it is determined that the number of chapters with the predetermined name is 0, or when the number of chapters with the title is equal to the number of chapters with the predetermined name The video editing method according to claim 11, further comprising a step of processing that the processing has failed. Executing a name acquisition process for acquiring the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
A video editing method comprising: adding a group to a playlist according to the acquired name. Executing a name acquisition process for acquiring the name of the chapter from a recording medium on which a title including video information divided into a plurality of chapters by information indicating a boundary capable of setting a name is recorded;
Determining whether the acquired name is a predetermined name;
Adding the chapter to a first group of a playlist if the acquired name is not a predetermined name;
And a step of adding the chapter to a second group of a playlist when the acquired name is a predetermined name.

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