JP3860537B2 - Video information processing apparatus and video information processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a video information processing apparatus that performs moving image editing, and more particularly, to a video information processing apparatus and a video information processing method that perform reset processing of start / end positions of partial areas constituting a title of video information.
[0002]
[Prior art]
Recently, a DVD video recorder using a recordable DVD (Digital Versatile Disk) has been put into practical use. An HDD video recorder using an HDD (Hard Disk Driver) has also been developed. Furthermore, hybrid recorders that have both a removable removable DVD and a large-capacity HDD have also appeared.
[0003]
In conventional video tape recorders using magnetic tape, editing of recorded content, such as deleting unnecessary scenes or extracting necessary scenes, requires multiple video tape recorders or editing. Equipment was necessary. This is due to the characteristic of the tape media that recording is performed in a straight line in the running direction of the tape.
[0004]
On the other hand, disk media such as DVDs and HDDs have a feature of excellent random accessibility. For this reason, video recorders using these disk media can incorporate a recorded content editing function in the video recorder main body without using a special editing device. Specifically, what is called playlist editing, in which partial reference information indicating a part of recorded content is bundled, is generally used.
[0005]
The recorded content is an original title that has audio data and video data itself, and a playlist title that does not have unique audio and video data, but consists only of playback order information for the audio and video data of other original titles. It is classified into two types.
[0006]
The procedure for creating this playlist generally follows the following procedure. First, in the original data such as the original title or another playlist title already created, a partial area in which the user arbitrarily designates the start / end position is set. Next, reproduction order information in which partial reference information corresponding to the range of the created partial area is bundled is configured. This reproduction order information becomes the playlist title.
[0007]
As a conventional technique using such a playlist, a digital recording / reproducing apparatus capable of endless recording is known (for example, see Patent Document 1). In such a digital recording / reproducing apparatus, by using a playlist, editing processing can be performed so that video information desired by the user is reproduced in a desired order.
[0008]
[Patent Document 1]
JP 2001-167507 A.
[0009]
[Problems to be solved by the invention]
However, in the above-described prior art, during the video information editing process, a playlist which is playback order information for generating a new title using a partial area (chapter) already set in the original title is used. When creating a region, the start position and end position of the partial area to be used may not necessarily be optimal. That is, the partial area to be used is already set arbitrarily on the original title editing screen, and this position is not necessarily the best for the current user. For example, the video or audio included in the range of the partial area (chapter) may be cut off from the head or the bottom, or an extra screen may be included at the beginning or end of the partial area (chapter). . It is possible to set the start / end position again at the stage where the partial area is set at the stage of editing the original title, but once it has been registered in the playlist, There is a problem that the start / end positions cannot be adjusted.
In view of this, an object of the present invention is to provide a video information processing apparatus and a video information processing method that can very easily reset the boundary position of a partial area in a title of video information to be edited. .
[0010]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention provides a recording unit that receives actual video data and records it in a storage area, and an actual video data stream of the actual video data as management information of the actual video data at the time of recording by the recording unit To indicate which part is to be played as multiple stream partial areas. 1 Generate reference information for the original title 1 A management information generating unit; and 1 According to the position information of the stream partial area indicated by the reference information of the first playlist information, and the second management information generating unit that generates the first playlist information as the second reference information by editing the reference information The position information when the chapter boundary is moved to the VOBU boundary position is calculated. Based on the calculation result, it is determined whether the moving process is appropriate. When it is determined that the cell is changed by the chapter boundary moving process, If there is a change in the range of the cell, if it is determined that it is appropriate, the second reference information is referred to as a third reference in order to move the chapter boundary to the VOBU boundary position. Information is edited, and as a result, if there is a change in the cell range, second playlist information is generated by correcting the third reference information to change the cell boundary position to the VOBU boundary position. In response to the third reference information of the second playlist information generated by the physical information generation unit and the third management information generation unit, a plurality of stream partial areas are extracted from the actual video data stream of the actual video data. A video information processing apparatus comprising: a playback unit that selectively plays back.
[0011]
In the video information processing apparatus according to the present invention, when the partial information (chapter) in the reproduction order information (playlist) when the video signal is recorded is registered and used in the subsequent editing process, In some cases, the video or audio included in the range of the partial area (chapter) may be cut off from the head or the bottom, or an extra screen may be included at the beginning or end of the partial area (chapter). In the conventional apparatus, this is not a stage where the partial area is set on the original title editing screen, and cannot be adjusted. However, according to the present invention, this partial area (chapter) is displayed on the subsequent editing screen. However, as will be described later, it can be reset as appropriate by shifting the boundary region of the cell or shifting the entry point (EP) in the cell.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of a video information processing apparatus according to an embodiment of the present invention will be described with reference to the drawings.
[0013]
<Video Information Processing Device According to the Present Invention>
(Constitution)
First, the configuration of an example of a video information processing apparatus according to the present invention will be described. FIG. 1 is a block diagram showing an example of a video information processing apparatus according to the present invention. In this embodiment, an apparatus capable of handling both a DVD-RAM and a hard disk as a recording medium is shown. However, the hard disk or the DVD-RAM may be replaced with a recording medium using a semiconductor memory, for example.
[0014]
When the blocks in FIG. 1 are roughly divided, the main block of the recording unit is shown on the left side, and the main block of the playback unit is shown on the right side.
[0015]
The video information processing apparatus in FIG. 1 has two types of disk drive units. First, it has a disk drive unit 23 that rotationally drives an optical disk D as a first medium, which is an information recording medium that can construct a video file, and executes reading and writing of information. Further, it has a hard disk drive unit 21 for driving a hard disk as a second medium. The data processor unit 22 can supply recording data to the disk drive unit 23 and the hard disk drive unit 21 and can receive a reproduced signal. The disk drive unit 23 includes a rotation control system, a laser drive system, an optical system, and the like for the optical disk D.
[0016]
The data processor unit 22 handles data for recording or reproduction, and includes a buffer circuit, a modulation / demodulation circuit, an error correction unit, and the like.
[0017]
Further, the video information processing apparatus of FIG. 1 mainly includes an encoder unit 50 that constitutes a recording side, a decoder unit 60 that constitutes a reproduction side, and a microcomputer block 30 that controls the operation of the apparatus body.
[0018]
The encoder unit 50 includes a video and audio analog-to-digital converter that digitizes an input analog video signal or analog audio signal, a video encoder, and an audio encoder. Furthermore, a sub-picture encoder is also included.
[0019]
The output of the encoder unit 50 is converted into a predetermined DVD-RAM format by a formatter 51 including a buffer memory and supplied to the data processor unit 22.
[0020]
The encoder unit 50 receives an external analog video signal and an external analog audio signal from the AV input unit 40 or an analog video signal and an analog audio signal from the TV tuner 42.
[0021]
The encoder unit 50 can also supply the compressed digital video signal or digital audio signal directly to the formatter 51 when a directly compressed digital video signal or digital audio signal is directly input. The encoder unit 50 can also directly supply a digital video signal or audio signal that has been subjected to analog-digital conversion to the video mixing unit 71 or the audio selector 76.
[0022]
In the video encoder included in the encoder unit 50, the digital video signal is converted into a digital video signal compressed at a variable bit rate based on the MPEG2 or MPEG1 standard. The digital audio signal is converted into a digital audio signal compressed at a fixed bit rate based on the MPEG or AC-3 standard, or a digital audio signal of linear PCM.
[0023]
When a sub-video signal is input from the AV input unit 40 (for example, a signal from a DVD video player with an independent output terminal of a sub-video signal), or a DVD video signal having such a data structure is broadcast and is transmitted to a TV When received by the tuner 42, the sub-picture signal in the DVD video signal is encoded (run-length encoded) by the sub-picture encoder to become a sub-picture bitmap.
[0024]
The encoded digital video signal, digital audio signal, and sub-picture data are packed by the formatter 51 to become a video pack, an audio pack, and a sub-picture pack, and these are assembled to form a DVD-recording standard (for example, DVD-recording). (Standard for recording in RAM, DVD-R, DVD-RW, etc.).
[0025]
Here, the apparatus shown in FIG. 1 transmits information (packets such as video, audio, and sub-picture data) formatted by the formatter 51 and the created management information to the hard disk drive unit 21 or the data disk via the data processor unit 22. It can be supplied to the drive unit 23 and recorded on the hard disk or the optical disk D. Further, information recorded on the hard disk or the optical disk D can be recorded on the optical disk D or the hard disk via the data processor unit 22 and the disk drive unit 23.
[0026]
It is also possible to perform an editing process such as deleting a part of video objects of a plurality of programs recorded on the hard disk or the optical disk D or connecting objects of different programs. This is because the data unit handled by the format according to the present invention is defined to facilitate editing.
[0027]
The microcomputer block 30 includes an MPU (microprocessing unit) or CPU (central processing unit), a ROM in which a control program and the like are written, and a RAM 31 for providing a work area necessary for program execution. In addition, a directory detection unit 33 as a representative function, a management information control unit 34 at the time of editing including a chapter start / end position resetting unit, which is a feature of the present invention, and a management information control unit 35 at the time of recording Contains.
[0028]
The MPU of the microcomputer block 30 executes defect location detection, unrecorded area detection, recording information recording position setting, UDF recording, AV address setting, etc. using the RAM 31 as a work area according to the control program stored in the ROM. To do.
[0029]
The microcomputer block 30 has an information processing unit necessary for controlling the entire system. In addition to the work RAM 31, the directory detection unit 33, the management information control units 34 and 35 at the time of editing and recording, and the like. VMG (total video management information) information creation unit, copy related information detection unit, copy and scrambling information processing unit (RDI processing unit), packet header processing unit, sequence header processing unit, aspect ratio information processing unit, etc. Prepare.
[0030]
Among the execution results of the MPU, the contents to be notified to the user are displayed on the display unit 43 of the video information processing apparatus or displayed on the monitor display as OSD (on-screen display). The microcomputer block 30 has a key input unit 44 for giving an operation signal for operating this apparatus.
[0031]
The timing at which the microcomputer block 30 controls the disk drive unit 23, the hard disk drive unit 21, the data processor unit 22, the encoder unit 50, and / or the decoder unit 60 is the time from the STC (system time clock) 38. It can be performed based on the data. Recording and playback operations are normally executed in synchronization with the time clock from the STC 38, but other processes may be executed at a timing independent of the STC 38.
[0032]
The decoder unit 60 separates and extracts each pack from a DVD format signal having a pack structure, a memory used when pack separation or other signal processing is performed, and main video data (video packs) separated by the separator. A V decoder that decodes the content), an SP decoder that decodes the sub-picture data separated by the separator (the contents of the sub-picture pack), and an A decoder that decodes the audio data separated by the separator (the contents of the audio pack) Have In addition, a video processor is provided that appropriately synthesizes the decoded sub-video with the decoded main video, and outputs the menu, highlight button, subtitles, and other sub-videos superimposed on the main video.
[0033]
The output video signal of the decoder unit 60 is input to the video mixing unit 71. In the video mixing unit 71, text data is synthesized. The video mixing unit 71 is also connected to a line that directly takes in signals from the TV tuner 42 and the A / V input unit 40. A frame memory 72 used as a buffer is connected to the video mixing unit 71. When the output of the video mixing unit 71 is an analog output, it is output to the outside via an I / F (interface) 73, and when it is a digital output, it is output to the outside via a digital / analog converter 74.
[0034]
The output audio signal of the decoder unit 60 is analog-converted by the digital-analog converter 77 via the selector 76 and output to the outside. The selector 76 is controlled by a select signal from the microcomputer block 30. Thus, the selector 76 can directly select a signal that has passed through the encoder unit 50 when directly monitoring a digital signal from the TV tuner 42 or the A / V input unit 40.
[0035]
Note that the formatter of the encoder unit 50 creates segmentation information during recording and periodically sends it to the MPU of the microcomputer block 30 (information at the time of GOP head interrupt, etc.). The segmentation information includes the number of VOBU packs, the end address of the I picture from the beginning of the VOBU, and the playback time of the VOBU.
[0036]
At the same time, information from the aspect information processing unit is sent to the MPU at the start of recording, and the MPU creates VOB stream information (STI). Here, the STI stores resolution data, aspect data, and the like, and at the time of reproduction, each decoder unit is initialized based on this information.
[0037]
In this apparatus, one video file is recorded on one disc. Further, in order to continue reproduction without interruption while accessing (seeking) data, a minimum continuous information unit (size) is determined. This unit is called CDA (Contiguous Data Area). The CDA size is a multiple of an ECC (error correction code) block (16 sectors), and the file system records in this CDA unit.
[0038]
The data processor unit 22 receives data in VOBU units from the formatter of the encoder unit 50 and supplies data in CDA units to the disk drive unit 23 or the hard disk drive unit 21. Further, the MPU of the microcomputer block 30 creates management information necessary for reproducing the recorded data and recognizes a data recording end command, and sends the created management information to the data processor unit 22. Thereby, the management information is recorded on the disc. Therefore, when encoding is performed, the MPU of the microcomputer block 30 receives data unit information (eg, segmentation information) from the encoder unit 50. The MPU of the microcomputer block 30 recognizes the management information (file system) read from the optical disk and the hard disk at the start of recording, recognizes the unrecorded area of each disk, and sets the data recording area in the data processor unit 22. Is set to disk via.
[0039]
(Overview of editing process)
Next, the relationship between the management information and the actual video data that is the content will be briefly described with reference to FIGS. 2 and 3 are schematic diagrams showing the relationship between management information and actual video data of the video information processing apparatus according to the present invention.
[0040]
In FIG. 2, the actual video data 80 will be described first. Here, it is assumed that the actual video data 80 is collected into one file on the recording medium. One file is composed of one or a plurality of actual video data streams 81. Each real video data stream 81 may be a unit recorded by one recording process, for example. This corresponds to, for example, VOB (video object) in the DVD recording standard. One real video data stream 81 is composed of one or a plurality of stream partial areas 82. This corresponds to, for example, VOBU (video object unit) in the DVD recording standard, GOP (group of picture) in the MPEG2 standard, and the like. One stream partial area 82 is composed of a plurality of packs. As the plurality of packs, there are an information pack 83, a video pack 84, an audio pack 85, and the like. Further, a sub-picture pack 86 may exist.
[0041]
The information pack 83 corresponds to, for example, an RDI pack in the DVD recording standard. In this case, this pack includes information indicating the start time when the first field of the VOBU to which the pack belongs is reproduced, 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.
[0042]
The video pack 84 is obtained by compressing video data by the MPEG2 system and includes a pack header, a packet header, and a video data portion.
[0043]
The audio pack 85 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.
[0044]
Next, the management information 90 will be described.
[0045]
In the management information 90, original title (program) information T1 which is information (reproduction order information) for managing the reproduction order of the actual video data 80 is defined. This corresponds to, for example, programs 93-1 to 9-n in the DVD recording standard. Reference information 94-1 to 9-n is defined in each original title information (or program information) 93-1 to 93-n, which is information about the actual video data 80 to be reproduced. The video data information 91 is linked. These correspond to, for example, cells and video object information (VOBI) in the DVD recording standard.
[0046]
Thus, the original title information T1 (programs 93-1 to 9-n) has its own real video data 80, and this title is usually created during recording.
[0047]
On the other hand, some information is composed only of information for managing the reproduction order (reproduction order information). This is playlist information T2, for example, a playlist in the DVD recording standard. This playlist information T2 does not have its own real video data 80, but edits reference information 94-1 to 94-n linked to the real video data information 91 of the original title information T1, as shown in FIG. (Delete, add) to create a playlist.
[0048]
In the actual video data information 91, time map information 92 is described. This time map information 92 designates a partial area 82 constituting the actual video data stream 81 corresponding to the actual video data information 91. Links from the reference information 94-1 to n of the original title information T1 of the management information 90 or the reference information 95-1 to 95-n of the playlist information T2 to the actual video data information 91 are specified by logical addresses. The link from the time map information 92 to the actual video data stream 81 and its partial area 82 includes the number of the actual video data stream 81, the number of partial areas 82 in the stream, the entry number for each partial area 82, This is performed based on the logical address to the partial area 82. With such a configuration, not only normal playback of recorded video data but also special playback such as double speed / slow playback and reverse playback, and scene search can be supported.
[0049]
Further, FIG. 3 is obtained by further adding playlist information T3 to the schematic diagram showing the relationship between the management information and actual video data in FIG. This is because the original title information T1 indicating the first reproduction order information and the playlist information T2 (indicating the second reproduction order information) after the editing process based on the original title information T1 are further edited. Play list information T3 (indicating third reproduction order information) is shown. Like the playlist information T2, this playlist information T3 does not have its own actual video data 80, and is linked to the actual video data information 91 of the original title information T1 as shown in FIG. A playlist is created by editing (deleting or adding) information 94-1 to n, reference information 95-1 to n of original title information T2, and other reference information (however, in FIG. 3, the drawing is complicated) Therefore, the state of the link from the reference information 96-1 to 96-n of the playlist title information T3 to the actual video data information 91 is omitted).
[0050]
(Details of editing process)
Next, details of the editing process having such an outline will be described in detail with reference to the flowcharts of FIGS. In this description, the video information processing apparatus according to the present invention is described by taking the following configuration as an example.
That is, first, it is assumed that the video information processing apparatus of the present invention is a DVD recorder based on the DVD recording standard (DVD-VR standard). Also, it is assumed that the recording device is a hybrid recorder having two recording media of DVD and HDD, and video data can be dubbed between the DVD and HDD. In addition to having a function of recording to a DVD-RAM or the like based on the DVD-VR standard, recording to a DVD has a function of recording to a DVD-R based on the DVD video standard (DVD-Video standard). And Here, it is assumed that the first title corresponding to the first playback order information is the DVD-VR standard program 93-1 to n, and the second title and the third title are DVD-VR standard playlists. Suppose there is. That is, the above-mentioned first playback order information corresponds to program information (PGI) of the DVD-VR standard, and the second playback order information and third playback order information correspond to user-defined program chain information (UD_PGCI). 94-1 to n, 95-1 to n, and 96-1 to n correspond to DVD-VR standard cells.
[0051]
Next, the partial area set in the reproduction order information described above is referred to as a chapter here. That is, the resetting of the start position or the end position of the partial area described above corresponds to the movement of the chapter boundary here. An entry point of the DVD-VR standard is given as marking information at a position indicating the chapter boundary. However, since it is obvious that the first chapter in the title starts from the starting position of the title, an entry point may exist at the front boundary position of chapter 1, that is, at the beginning position of the title. Does not have to exist.
[0052]
Next, the editing operation according to the present invention will be described in detail with reference to the flowcharts of FIGS.
[0053]
FIG. 4 is a flowchart showing processing of the entire operation according to the present invention.
[0054]
First, in step S11, various parameters necessary for the operation of the present invention are determined based on a user operation. Here, the following parameters are required. The target title specifies the type of title to be processed (original title information T1 or playlist T2, T3) and the number of the title. The target chapter specifies the number of the chapter to be processed in the title. The front / rear chapter boundary specifies which one of the front boundary and the rear boundary is to be processed among the chapter boundaries of the specified chapter. The forward movement / backward movement specifies whether the designated chapter boundary is moved in the forward direction (past direction on the time axis) or backward (future direction on the time axis). For moving to the boundary of one frame / VOBU, the type of moving method is designated. The movement by one frame moves the selected chapter boundary back and forth in units of one frame. In the VOBU boundary movement, the selected chapter boundary is moved to the boundary position of the nearest VOBU (video object unit in the DVD-VR standard) before and after. The latter has the following advantages. When video content recorded on an HDD is dubbed and recorded on a DVD-R, it is necessary to convert the format of the video / audio data from the DVD-VR standard to the DVD-Video standard. In this case, the DVD-Video standard is limited. Therefore, the chapter boundary must be set to the MPEG-2 group of picture (GOP) boundary. However, since the user can set a chapter boundary at an arbitrary position on the HDD, when such a title is dubbed and recorded on a DVD-R, the chapter boundary may slightly deviate from the position set by the user. According to the DVD-VR standard, at least one GOP is bundled and stored in the VOBU, so the boundary of the VOBU coincides with the boundary of the GOP. Therefore, if this VOBU boundary movement is used, there is an advantage that it is possible to recognize in advance how to shift the chapter boundary.
[0055]
In step S12, based on the parameters determined in step S11, the title playback order information (PGI or PGCI) to be actually changed is determined. That is, it is determined here whether to change only the cell boundary, move only the entry point, or operate both the cell boundary and the entry point.
[0056]
Step S13 branches whether to move the chapter boundary by one frame or to the nearest VOBU boundary based on the selection result of the chapter boundary movement method determined in step S11.
[0057]
As a result of step S13, when movement for one frame is selected, the process branches to step S14 to perform chapter boundary movement processing in units of one frame. The details of this processing will be described later using the flowcharts of FIGS.
[0058]
If the movement to the nearest VOBU boundary is selected as a result of step S13, the process branches to step S15 to perform the chapter boundary movement processing to the VOBU boundary position. The details of this process will be described later using the flowcharts of FIGS.
[0059]
Step S14 or step S15 includes determination processing as to whether or not chapter boundary movement processing can be performed, as will be described later. In step S16, if a return code that rejects the movement of the chapter boundary is returned from step S14 or step S15, the process branches in the direction of skipping the subsequent processes and the process ends. If the return code of rejection is not returned from step S14 or step S15, it is determined that the chapter boundary moving process has been performed normally, and the process branches to the next step S17.
[0060]
In step S17, the subsequent processing is branched depending on whether or not the ripple processing to the playlist occurs. In other words, when the title of the target subject to the chapter boundary movement process is the original title information T1 and the range of the cells is narrowed by the chapter boundary movement process, the play list has a ripple effect. Is determined to be rewritten. In that case, the process branches in the direction to proceed to the next step S18. In other cases, it is assumed that the ripple processing to the playlist does not occur, and the processing is terminated after branching in the direction of skipping the subsequent processing.
[0061]
A step S18 performs a ripple process to the playlist based on the process for the original title information T1. The details of this process will be described later using the flowcharts of FIGS.
[0062]
A series of processing from step S11 to step S18 described above shows an outline of the editing operation according to the present invention.
[0063]
(Chapter boundary movement processing in units of one frame)
FIG. 5 and FIG. 6 are flowcharts illustrating in detail the contents of the movement processing of the chapter boundary in units of one frame in step S14 of FIG. 4 described above.
[0064]
First, in step S401, position information is calculated when the chapter boundary that is the movement target is moved by one frame. This is used not only for update information when the chapter boundary is actually moved, but also for determining whether or not the chapter boundary moving process is appropriate.
[0065]
The subsequent steps S402 to S409 correspond to a determination process for determining whether or not the chapter boundary moving process is appropriate. Hereinafter, the description will be given in order.
In step S402, it is determined whether or not the designated chapter boundary movement process involves the movement of the entry point that is the marking information. If the entry point is moved, the process branches to the subsequent step S403. If the entry point is not moved, the process branches in a direction to skip step S403 and proceed to step S404.
[0066]
In step S403, it is determined whether the chapter boundary moving process is appropriate or should be rejected in terms of entry point movement. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
・ Does the entry point exceed the cell range?
・ Do you overlap or overtake other entry points?
If it is determined in step S403 that such a rejection condition is met, the process branches to step S415, a return code indicating the rejection is returned, and the process ends. If the rejection condition is not met, the process branches in the direction to proceed to step S404.
[0067]
In step S404, it is determined whether or not the specified chapter boundary moving process involves a change in the cell range. If the cell range is changed, the process branches to the subsequent step S405. If the cell range is not changed, step S405 is skipped, and the process branches in a direction to advance to step S406.
[0068]
In step S405, it is determined whether the chapter boundary moving process is appropriate or should be rejected in terms of changing the cell range. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
• Does the cell range extend beyond the VOB range?
• Does the cell size become “0”?
・ Do you overtake entry points?
If it is determined in step S405 that such a rejection condition is satisfied, the process branches to step S415, a return code indicating the rejection is returned, and the process ends. If the rejection condition is not met, the process branches in the direction to proceed to step S406.
[0069]
In step S406, it is determined whether or not the specified chapter boundary moving process is a process for a chapter on the playlist. If the process is for a chapter on the playlist, the process branches to the subsequent step S407. If the process is not for a chapter on the playlist, the process branches in a direction to skip step S407 and proceed to step S408.
[0070]
In step S407, it is determined whether the chapter boundary moving process is appropriate or should be rejected in terms of processing for the chapters on the playlist. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
Does the cell range in the playlist exceed the cell range of the original title information T1 corresponding to the VOB referenced by the cell?
If it is determined in step S407 that the rejection condition is satisfied, the process branches to step S415, a return code indicating the rejection is returned, and the process is terminated. If the rejection condition is not met, the process branches in the direction to proceed to step S408.
[0071]
In step S408, it is determined whether the designated chapter boundary moving process is a process for a chapter on the original title information T1. If the process is for a chapter on the original title information T1, the process branches to the subsequent step S409. If it is not a process for a chapter on the original title information T1, the process branches in a direction to skip step S409 and proceed to step S410.
[0072]
Step S409 determines whether this chapter boundary movement processing is appropriate or should be rejected in terms of processing for the chapters on the original title information T1. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
[0073]
Does the cell boundary position in the original title information T1 protrude from the range within 4 × VOBU from the boundary position of the corresponding VOB?
If it is determined in step S409 that such a rejection condition is met, the process branches to step S415, a return code indicating the rejection is returned, and the process is terminated. If the rejection condition is not met, the process branches in a direction to proceed to step S410.
[0074]
As a result of the determination process of whether or not the chapter boundary moving process from step S402 to step S409 described above is appropriate, if the rejection condition is not met, the chapter boundary can be moved. become. In response, chapter boundary movement processing is performed by the processing from step S410 to step S413. Hereinafter, the description will be given in order.
[0075]
In step S410, it is determined whether or not the movement processing of the designated chapter boundary involves the movement of the entry point that is the marking information. When the entry point is moved, the process branches to the subsequent step S411. If the entry point is not moved, the process branches in a direction to skip step S411 and proceed to step S412.
[0076]
In step S411, the position information of the movement target chapter boundary calculated in step S401 is used, and the position of the entry point is reset. As a result, the entry point moves from the original position by one frame. After performing the entry point moving process, the process proceeds to the following step S412.
[0077]
In step S <b> 412, it is determined whether or not the specified chapter boundary moving process involves a change in the cell range. If the cell range is changed, the process branches to subsequent step S413. If the cell range is not changed, the process branches in a direction to skip step S413 and proceed to step S414.
[0078]
In step S413, the position information when the chapter boundary that is the movement target is moved by one frame and calculated in step S401 is used to reset the cell boundary position. As a result, the cell boundary moves from the original position by one frame. After performing the cell range movement process, the process proceeds to the subsequent step S414.
[0079]
Since the chapter boundary moving process is performed by the processes from step S410 to step S413, the process returns to step S414 with the return code indicating the normal end content returned.
[0080]
As described above, when it is determined that the chapter boundary moving process is rejected by the processes from step S402 to step S409, the return code indicating the rejection content is returned in step S415 and the process is terminated. To do.
[0081]
The contents of the chapter boundary movement processing in units of one frame in step S14 of the flowchart of FIG. 4 have been described above using the flowcharts of FIGS. Here, in the above flow, the order of the individual determination processing as to whether or not the chapter boundary moving process is appropriate, and the order of the individual chapter boundary moving processes need not necessarily be in the order described here. There is no. That is, the series of chapter boundary movement determination conditions from step S402 to step S409 do not have to be in the order shown in the flowcharts of FIGS. 5 and 6, and are appropriate within a range not departing from the gist of the present invention. It suffices if the processing is performed in the correct order. Similarly, the series of chapter boundary movement processes from step S410 to step S413 need not be in the order shown in the flowcharts of FIGS. 5 and 6 and can be performed in an appropriate order within the scope of the present invention. It is sufficient if the process is performed.
[0082]
(Process of moving chapter boundary to VOBU boundary position)
Next, the chapter boundary moving process to the VOBU boundary position will be described. 7 and 8 are flowcharts illustrating in detail the contents of the chapter boundary moving process to the VOBU boundary position in step S15 of the flowchart of FIG. 4 described above.
[0083]
First, in step S501, the position information of the VOBU boundary at the movement destination is acquired. This is used not only for update information when the chapter boundary is actually moved, but also for determining whether or not the chapter boundary moving process is appropriate.
[0084]
The subsequent steps S502 to S509 correspond to a determination process for determining whether or not the chapter boundary moving process is appropriate. Hereinafter, the description will be given in order.
[0085]
In step S502, it is determined whether or not the movement processing of the designated chapter boundary involves the movement of the entry point that is the marking information. When the entry point is moved, the process branches to the subsequent step S503. If the entry point is not moved, the process branches in a direction to skip step S503 and proceed to step S504.
[0086]
In step S503, it is determined whether the chapter boundary moving process is appropriate or should be rejected at the point of entry point movement. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
[0087]
・ Does the entry point exceed the cell range?
・ Do you overlap or overtake other entry points?
If it is determined in step S503 that such a rejection condition is satisfied, the process branches to step S515, a return code indicating the rejection content is returned, and the process ends. If the rejection condition is not met, the process branches in the direction to proceed to step S504.
[0088]
In step S504, it is determined whether or not the specified chapter boundary moving process involves a change in the cell range. If the cell range is changed, the process branches to subsequent step S505. If the cell range is not changed, step S505 is skipped, and the process branches in a direction to proceed to step S506.
[0089]
In step S505, it is determined whether the chapter boundary moving process is appropriate or should be rejected in terms of changing the cell range. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
[0090]
• Does the cell range extend beyond the VOB range?
• Does the cell size become “0”?
・ Do you overtake entry points?
If it is determined in step S505 that the rejection condition is met, the process branches to step S515, a return code indicating the rejection is returned, and the process is terminated. If the rejection condition is not met, the process branches in the direction to proceed to step S506.
[0091]
In step S506, it is determined whether or not the specified chapter boundary moving process is a process for a chapter on the playlist. If the process is for a chapter on the playlist, the process branches to subsequent step S507. If the process is not for a chapter on the playlist, the process branches in a direction to skip step S507 and proceed to step S508.
[0092]
In step S507, it is determined whether the chapter boundary movement processing is appropriate or should be rejected in terms of processing for the chapters on the playlist. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
[0093]
Does the cell range in the playlist exceed the cell range of the original title information T1 corresponding to the VOB referenced by the cell?
If it is determined in step S507 that such a rejection condition is met, the process branches to step S515, a return code indicating the rejection is returned, and the process is terminated. If the rejection condition is not met, the process branches in the direction to proceed to step S508.
[0094]
In step S508, it is determined whether or not the specified chapter boundary moving process is a process for a chapter on the original title information T1. If the process is for a chapter on the original title information T1, the process branches to the subsequent step S509. If it is not a process for a chapter on the original title information T1, the process branches in a direction to skip step S509 and proceed to step S510.
[0095]
In step S509, it is determined whether the chapter boundary movement process is appropriate or should be rejected in terms of the process for the chapter on the original title information T1. Here, as the rejection condition, for example, the following items are used for the determination. These are merely examples, and determination conditions may be added as appropriate as product specifications of the video information processing apparatus.
[0096]
Does the cell boundary position in the original title information T1 protrude from the range within 4 × VOBU from the boundary position of the corresponding VOB?
If it is determined in step S509 that such a rejection condition is met, the process branches to step S515, a return code indicating the rejection is returned, and the process is terminated. If the rejection condition is not met, the process branches in the direction to proceed to step S510.
[0097]
As a result of the determination process of whether or not the chapter boundary moving process from step S502 to step S509 described above is appropriate, if the rejection condition is not met, the chapter boundary can be moved. become. In response, chapter boundary movement processing is performed by the processing from step S510 to step S513. Hereinafter, the description will be given in order.
[0098]
In step S510, it is determined whether or not the movement processing of the designated chapter boundary is accompanied by the movement of the entry point that is the marking information. If the entry point is moved, the process branches to the subsequent step S511. If the entry point is not moved, the process branches in a direction to skip step S511 and proceed to step S512.
[0099]
In step S511, the position information of the destination VOBU boundary acquired in step S501 is used to reset the entry point position. As a result, the entry point moves from the original position to the boundary position of the VOBU. After performing the entry point moving process, the process proceeds to the following step S512.
[0100]
In step S512, it is determined whether or not the specified chapter boundary moving process involves a change in the cell range. When the cell range is changed, the process branches to subsequent step S513. If the cell range is not changed, the process branches in a direction to skip step S513 and proceed to step S514.
[0101]
In step S513, the position information of the VOBU boundary of the movement destination previously acquired in step S501 is used to reset the cell boundary position. As a result, the cell boundary moves from the original position to the boundary position of the VOBU. After performing the cell range moving process, the process proceeds to the following step S514.
[0102]
Since the chapter boundary moving process is performed by the processes from step S510 to step S513, a return code indicating the normal end is returned in step S514, and the process ends.
[0103]
As described above, when it is determined that the chapter boundary moving process is rejected by the process from step S502 to step S509, the return code indicating the rejection content is returned in step S515 and the process is terminated. To do.
[0104]
The contents of the chapter boundary moving process to the VOBU boundary position in step S15 of the flowchart of FIG. 4 have been described above using the flowcharts of FIGS. Here, in the above flow, the order of the individual determination processing as to whether or not the chapter boundary moving process is appropriate, and the order of the individual chapter boundary moving processes need not necessarily be in the order described here. There is no. That is, the series of chapter boundary moveability determination conditions from step S502 to step S509 do not have to be in the order shown in the flowcharts of FIGS. 7 and 8, and are appropriate within the scope of the present invention. It suffices if the processing is performed in the correct order. Similarly, the series of chapter boundary movement processes from step S510 to step S513 need not be in the order shown in the flowcharts of FIGS. 7 and 8, and can be performed in an appropriate order without departing from the gist of the present invention. It is sufficient if the process is performed.
[0105]
(Ripple processing to playlist)
9 and 10 are flowcharts illustrating in detail the contents of the spreading process to the playlist based on the original title process in step S18 of FIG. 4 described above. As described above, the process of step S18 in FIG. 4 is executed when the cell range is narrowed by the chapter boundary moving process for the chapter on the original title information T1.
[0106]
First, in step S601, a cell whose range is narrowed in the original title information T1 is specified by the chapter boundary movement process.
[0107]
The subsequent processing from step S602 is performed on all playlists existing on the same medium as the original title information T1 to be processed. Therefore, in step S602, the initial value of the playlist to be processed is set.
[0108]
In step S603, the initial value of the cell in the playlist is set.
[0109]
Next, in step S604, VOBs respectively referred to for the cell of the original title information T1 specified in step S601 and the cell of the playlist are searched.
[0110]
In step S605, it is determined whether or not the cell of the original title information T1 and the cell of the playlist refer to the same VOB. If the same VOB is referenced, the process branches in the direction to advance to step S606. On the other hand, if these cells do not refer to the same VOB, the processing for the cells in the playlist is not necessary, so the processing branches in a direction to skip the processing from step S606 to step S608.
[0111]
In step S606, the cell range is reset for the playlist cell that references the same VOB as the cell of the original title information T1. That is, the cell range of the playlist is changed to be equal to or less than the cell range of the original title information T1 referring to the same VOB.
[0112]
In step S607, it is determined whether or not the cell size of the playlist cell whose range has been reset has become zero. This is because the playlist can refer to an arbitrary range in the VOB of the original title information T1, and even if the cells of the original title information T1 have a significant size, the cells of the playlist may disappear. Because there is. Here, when the cell of the playlist becomes zero due to the resetting of the cell range, the process branches to the step proceeding to step S608. If the cell size of the playlist does not become zero even after resetting the cell range, the process branches in a direction to skip step S608.
[0113]
In step S608, processing is performed to delete a playlist cell whose size has become zero.
[0114]
Step S609 is reached regardless of whether or not the series of processing from step S606 to step S608 is performed. In step S609, it is determined whether the playlist cell that has been processed so far is the last cell in the playlist. If it is not the last cell, the process branches in the direction to advance to step S610. If it is the last cell, the process proceeds to step S611.
[0115]
Step S610 is processing to be reached when the cell that has been processed until now in step S609 is not the last cell in the playlist. In this case, in step S610, the cell in the playlist is incremented, and a series of processing from step S604 to step S609 is performed on a new cell in the playlist.
[0116]
On the other hand, if the cell that has been processed until now is the last cell in the playlist in step S609, the process reaches step S611. In step S611, it is determined whether or not a cell is included in the playlist that has been processed until now, that is, whether or not the playlist is empty. This is due to the deletion of the cell whose size has become zero in the above step S608. In the worst case, all the cells in the playlist all refer to the same VOB. It is possible that the range of the cells of the original title information T1 referring to the VOB is narrowed, and as a result, all the cells in the playlist are lost. Here, if the playlist that has been processed until now has been emptied through a series of processing up to step S611, the process branches to a step S612. On the other hand, if the playlist that has been processed does not become empty, the process branches in a direction to skip step S612.
[0117]
In step S612, a process of deleting a play list that has become empty is performed.
[0118]
In the subsequent step S613, it is determined whether or not the playlist that has been processed until now is the last playlist on the medium. If it is not the last playlist, the process branches in a direction to advance to step S614. If it is the last playlist, the process branches in a direction in which step S614 is not performed.
[0119]
Step S614 is processing to be reached when the playlist that has been processed in the above-described step S613 is not the last playlist in the medium. In this case, in step S614, the playlist in the medium is incremented, and a series of processing from step S603 to step S613 is performed on the new playlist.
[0120]
On the other hand, in step S613, if the playlist that has been processed until now is the last playlist on the medium, the process branches in a direction that does not proceed to step S614, and a ripple process to a series of playlists. Exit.
[0121]
<Change in Reproduction Order Information by Editing Operation of Video Information Processing Apparatus According to the Present Invention>
Next, with reference to FIG. 11 to FIG. 22, how the reproduction order information is changed by the editing process of the present invention will be described.
[0122]
FIG. 11 is an example of reproduction order information (in this case, user-defined PGCI) in a certain playlist (PlayList #n). It is assumed that the playlist Pn includes two cells in the DVD-VR standard, and each cell refers to VOB1 and VOB2, respectively. In addition, it is assumed that entry points EP of the DVD-VR standard are set at the middle of cell 1 and the front boundary position of cell 2, respectively. Here, a partial region having a range from a certain entry point EP to immediately before the next entry point EP is defined as a chapter, and a position where the entry point EP is set is defined as a chapter boundary CB. However, the head position of the title is regarded as the chapter boundary CB regardless of the presence or absence of the entry point EP.
[0123]
Hereinafter, the state of resetting the start position or end position of the chapter which is the partial area described above, that is, how the chapter boundary CB is moved will be described with reference to FIG.
[0124]
FIG. 12 is an enlarged view of the vicinity of the rear boundary of the chapter 1. Here, the cell boundary does not exist at the rear boundary of the chapter 1, and only the entry point EP exists. In this example, the rear boundary of chapter 1 exists at the position of frame #N in a certain VOBU.
[0125]
FIG. 13 shows a case where the rear boundary of the chapter 1 is moved backward by one frame. Here, the position of the entry point EP has moved backward by one frame, whereby the rear boundary of the chapter 1 has moved to the moved chapter border MCB, which is the position of frame # N + 1 behind by one frame.
[0126]
FIG. 14 shows a case where the rear boundary of the chapter 1 is moved to the nearest front VOBU boundary position MCB. Here, the position of the entry point EP has moved to the front boundary position of the VOBU, and thereby the rear boundary of the chapter 1 has moved to the boundary position of the VOBU.
[0127]
In the case where there is no cell boundary at the chapter boundary position and only the entry point EP exists as in the examples from FIG. 12 to FIG. 14, the movement of the chapter boundary CB of a certain chapter is the same chapter boundary. This is equivalent to the movement of the chapter boundary CB of adjacent chapters that are in contact with each other at CB. In this example, the movement of the rear boundary of chapter 1 is equivalent to the movement of the front boundary of chapter 2.
[0128]
In this way, by changing the definition of the chapter range, which is a partial area in the title, it is possible to change the range of the reproduced video and audio.
[0129]
FIG. 15 is an enlarged view of the vicinity of the front boundary of the chapter 1. Here, the entry point EP does not exist at the front boundary of the chapter 1, and only the cell boundary exists. In this example, the front boundary of chapter 1 exists at the position of frame #N in the first VOBU of VOB1.
[0130]
FIG. 16 shows a case where the front boundary of the chapter 1 is moved backward by one frame. Here, the front boundary of cell 1 has moved backward by one frame, and thus the front boundary of chapter 1 has moved to the moved chapter border MCB, which is the position of frame # N + 1 behind by one frame.
[0131]
FIG. 17 shows a case where the front boundary of chapter 1 is moved to the latest VOBU boundary behind. Here, the front boundary of the cell 1 has moved to the boundary position behind the VOBU, whereby the front boundary of the chapter 1 has moved to the moved chapter border MCB, which is the boundary position of the VOBU.
[0132]
As described above, as the movement of the chapter boundary CB, the video to be reproduced is changed by changing the cell range which is the reference information 94-1 to n or 95-1 to n or 96-1 to n with respect to the actual video data 80. And the range of the voice can be changed. In other words, even if the chapter which is a partial area in the title has a head or tail cut of the video, or an extra screen is included at the beginning or end of the chapter, the movement processing of the present invention described here Thus, the chapter boundary CB can be easily trimmed.
[0133]
Here, a play list is taken as an example, but if this title is original title information T1, the front boundary of cell 1 is 4 × VOBU from the beginning of VOB due to restrictions of the DVD-VR standard. Must be in range. Therefore, movement of the chapter boundary CB that deviates from the range of 4 × VOBU must be rejected. The same restriction is applied to the front boundary of the cell 2 that coincides with the front boundary of the chapter 3 (within 4 × VOBU from the head of the VOB 2).
[0134]
FIG. 18 is an enlarged view of the vicinity of the front boundary of the chapter 3. Here, both the cell boundary and the entry point EP exist at the front boundary of the chapter 3. In this example, the front boundary of chapter 3 exists at the position of frame #N in the first VOBU of VOB2.
[0135]
FIG. 19 shows a case where the front boundary of the chapter 3 is moved forward by one frame. Here, both the front boundary of the cell 2 and the entry point EP set at the front boundary position of the cell 2 are both moved forward by one frame. As a result, the front boundary of the chapter 3 has moved to the moved chapter border MCB, which is the position of frame # N-1 ahead by one frame.
[0136]
FIG. 20 shows a case where the front boundary of chapter 3 is moved to the nearest VOBU boundary in front. Here, both the front boundary of the cell 2 and the entry point EP set at the front boundary position of the cell 2 both move to the boundary position in front of the VOBU, so that the front boundary of the chapter 3 becomes It has moved to the moved chapter border MCB, which is the boundary position of the VOBU.
[0137]
In the case where there is a cell boundary at the chapter boundary CB, the movement of the chapter boundary CB of a certain chapter is not equivalent to the movement of the chapter boundary CB of an adjacent chapter regardless of the presence or absence of the entry point EP. . This is because the cell boundary on the reproduction order information (PGI or PGCI) is different even though it appears to be in contact with the same chapter boundary CB from the user side. In this example, the front boundary of the chapter 3 moves as shown in FIGS. 18 to 20, but the rear boundary of the chapter 2 that appears to be in contact with the user side is unchanged. In this example, the rear boundary of chapter 2 coincides with the rear boundary of cell 1, but through FIGS. 18 to 20, the rear boundary CB of chapter 2 holds the position of frame #M on the final VOBU of VOB 1. I keep doing it.
[0138]
FIG. 21 shows a case where the rear boundary of the chapter 2 is moved backward by one frame. Here, the rear boundary of the cell 1 is moved backward by one frame. As a result, the rear boundary of chapter 2 has moved to the moved chapter border MCB, which is the position of frame # M + 1, which is one frame behind.
[0139]
FIG. 22 shows a case where the rear boundary of the chapter 2 is moved to the latest VOBU boundary at the rear. Here, the rear boundary of the cell 1 has moved to the rear boundary of the VOBU, whereby the rear boundary of the chapter 2 has moved to the moved chapter border MCB, which is the boundary position of the VOBU.
[0140]
Here, through FIGS. 18, 21, and 22, the front boundary CB of the chapter 3 continues to hold the position of the frame #N on the first VOBU of the VOB 2 and is unchanged.
[0141]
As described above, as the movement of the chapter boundary CB, the video to be reproduced is changed by changing the cell range which is the reference information 94-1 to n or 95-1 to n or 96-1 to n with respect to the actual video data 80. And the range of the voice can be changed. That is, even if a chapter that is a partial area in the title has a head or tail cut of the video, or an extra screen is included at the beginning or end of the chapter, the editing process of the present invention described here is performed. Thus, the chapter boundary CB can be easily trimmed.
[0142]
In this example, a playlist is given as an example. However, if this title is original title information T1, the rear boundary of cell 1 is 4 × VOBU from the end of VOB1 due to restrictions of the DVD-VR standard. Must be in range. Therefore, movement of the chapter boundary CB that deviates from the range of 4 × VOBU must be rejected. The same restriction is applied to the rear boundary of the cell 2 that coincides with the rear boundary of the chapter 3 (within 4 × VOBU from the end of the VOB2).
[0143]
<Operation Method for Editing Process of Video Information Processing Apparatus According to the Present Invention>
Next, a specific example of the operation method for resetting the start position or end position of the partial area in the video information processing apparatus according to the present invention will be described with reference to FIGS. In the following description, the video information processing apparatus of the present invention will be described by taking the same configuration as that described when the operation of the present invention was previously described with reference to FIG. 4 and subsequent drawings as an example. . That is, the resetting of the start position or end position of the partial area described above corresponds to the movement of the chapter boundary CB here.
[0144]
First, the movement operation of the chapter boundary CB on the chapter creation screen will be described with reference to FIGS. 23 to 27.
[0145]
FIG. 23 shows an operation screen for chapter creation in the video information processing apparatus according to the present invention. This operation screen is used to set an arbitrary range in a certain title as a chapter. In the upper part of FIG. 23, a window 101 for displaying a playback screen is provided. The user performs a playback operation while monitoring the playback image on this screen, determines the position, and sets the chapter boundary CB. The bar in the middle of FIG. 23 indicates the approximate position where the chapter boundary CB is set in the target title. A vertical line standing in the bar indicates an approximate position of the chapter boundary CB. In the lower part of FIG. 23, representative screens of individual chapters set in the title are displayed as thumbnails 102-1 to 102-n.
[0146]
Here, a case where the chapter boundary CB of chapter 2 is moved will be described as an example.
[0147]
First, in FIG. 24, for example, the thumbnail 102-2 of the chapter 2 is focused by operating the remote controller, and the chapter 2 is determined as a processing target.
[0148]
Next, in FIG. 25, the menu screen 103 is opened by operating the remote controller or the like. At this time, as a menu command that can be used in this situation, the shift of the chapter boundary CB to the frame unit and the shift of the chapter boundary CB to the GOP boundary can be selected. In this example, the command name is not a VOBU boundary shift but a GOP boundary shift. This is because, according to the DVD-VR standard, at least one GOP is bundled and stored in the VOBU, and the VOBU boundary coincides with the GOP boundary, so the VOBU boundary coincides with the GOP boundary. In recent years, the name GOP is relatively known to users, so the name GOP boundary is used here.
[0149]
FIG. 26 shows the case where the frame unit shift of the chapter boundary CB is selected by remote control operation or the like. In response to this, a submenu screen 104 for selecting whether the chapter is moved forward or backward, and whether the chapter is in front or rear boundary is displayed.
[0150]
FIG. 27 shows a case where one frame movement ahead of the rear boundary is selected by remote control operation or the like. Thereby, the process of shifting forward by one frame with respect to the rear chapter boundary CB of the chapter 2 is performed.
[0151]
Although not shown in the drawing, after the chapter boundary CB is shifted, a preview function is provided so that the vicinity of the chapter boundary CB is automatically reproduced and the result of shifting the chapter boundary CB can be confirmed. You may prepare.
[0152]
Next, the movement operation of the chapter boundary CB on the chapter list display screen will be described with reference to FIGS.
[0153]
FIG. 28 is a screen displaying a list of titles recorded in the HDD or DVD in the video information processing apparatus according to the present invention. The thumbnails 105-1 and 105-2, which are representative screens of the recorded titles, and the title name, title type, title length, and the like are displayed.
[0154]
Here, the case where the chapter boundary CB is moved with respect to the chapter included in the title 3 will be described as an example.
[0155]
Since this screen is a title list display, it must be switched to a chapter list display. In FIG. 29, focus is placed on the thumbnail 105-2 of title 3, and a list of chapters included in this title is displayed.
[0156]
FIG. 30 is a screen displaying a list of chapter thumbnails included in the title 3, which is switched by a remote control operation or the like. Three chapter thumbnails 106-1, 106-2, and 106-3, which are representative screens of individual chapters included in the title, and chapter names or chapter numbers are displayed.
[0157]
Here, as an example, chapter boundary movement processing is performed on chapter 2.
[0158]
In FIG. 31, the processing target is determined by focusing on the thumbnail 106-2 of the target chapter 2, and the menu screen 107 is opened by remote control operation or the like. At this time, as a menu command that can be used in this situation, it is possible to select a frame unit shift of the chapter boundary and a shift of the chapter boundary to the GOP boundary.
[0159]
FIG. 32 shows a case where the movement of the chapter boundary to the GOP boundary position is selected by remote control operation or the like.
[0160]
In response to this, in FIG. 33, a submenu screen 108 is displayed for selecting whether the chapter is moved forward or backward, and whether the front boundary / rear boundary of the chapter is different.
[0161]
FIG. 34 shows a case where movement of the rear boundary to the rear GOP boundary is selected by remote control operation or the like. Thereby, the process which moves to the back GOP boundary with respect to the back chapter boundary of the chapter 2 is implemented.
[0162]
Although not shown in the figure, it is possible to provide a preview function that automatically reproduces the vicinity of the chapter boundary after the chapter boundary has been shifted and confirms the result of shifting the chapter boundary. Good.
[0163]
(Operations on the playlist creation screen)
Subsequently, a chapter boundary moving operation on the playlist creation screen will be described with reference to FIGS. 35 to 40.
[0164]
FIG. 35 shows a playlist creation screen in the video information processing apparatus according to the present invention. This operation screen is used to construct a playlist by registering titles or chapters as parts. In the upper part of FIG. 35, a list of thumbnails 109-1 and 109-2 of titles or chapters that can be registered in the playlist as parts is displayed. 35, thumbnails 110-1 and 110-2 of titles or chapters registered as parts in the created playlist are displayed.
[0165]
Here, the thumbnails 110-1 and 110-2 displayed in the lower row are representative screens of those registered as parts in the created playlist. Therefore, there is a case where it was originally a chapter and a case where it was originally a title. If the title was originally a title, there may be a case where a plurality of chapters are included therein. In such a case, however, a mechanism for specifying a chapter in some form is required. For example, a function may be separately prepared for displaying thumbnails of all chapters included in a part that was originally a title by a remote control operation or the like in the lower row. Further, for example, a moving process of the front boundary or the rear boundary of the part itself that was originally the title may be performed. In this case, internally, the chapter boundary moving process is performed on the front boundary of the first chapter included in the group of parts originally having the title and the rear boundary of the last chapter included in the part. It will be. In addition, for example, a part that originally had a title may have a form in which a plurality of chapters are registered in the playlist when being registered in the playlist. Various mechanisms other than those exemplified here can be used, but in any case, any mechanism that conforms to the gist of the present invention and can select chapters in any form may be used.
[0166]
Here, as an example, a case will be described in which the part 2 displayed in the lower row is originally a chapter, and the chapter boundary of the part 2 whose original is a chapter is moved.
[0167]
First, in FIG. 36, for example, by operating the remote controller, the thumbnail 110-2 of the part 2 that was originally a chapter is focused and determined as a processing target.
[0168]
Next, in FIG. 37, the menu screen 111 is opened by operating the remote controller or the like. At this time, as a menu command that can be used in this situation, it is possible to select a frame unit shift of the chapter boundary and a shift of the chapter boundary to the GOP boundary.
[0169]
FIG. 38 shows a case where the frame unit shift at the chapter boundary is selected by remote control operation or the like.
[0170]
In response to this, in FIG. 39, a submenu screen 112 is displayed for selecting whether the front boundary / backward boundary of the chapter and whether the movement is forward or backward.
[0171]
FIG. 40 shows a case where one frame movement to the rear of the front boundary is selected by remote control operation or the like. As a result, a process of shifting backward by one frame is performed with respect to the front chapter boundary of the part 2 that originally was the chapter.
[0172]
Although not shown in the figure, it is possible to provide a preview function that automatically reproduces the vicinity of the chapter boundary after the chapter boundary has been shifted and confirms the result of shifting the chapter boundary. Good.
[0173]
As described above, as described with reference to the drawings, it is possible to provide a video information processing apparatus having a function of resetting the boundary position of a partial area in a title with one touch by the processing of the present invention. This function can be used not only to easily reset the boundary position when setting the partial area to be registered in the playlist in the title, but also has already been registered in the playlist. Later, it can also be used to reset the border positions of partial areas in the title. Therefore, trimming can be easily realized when the head or tail of video or audio has been cut off, or when an extra screen is included at the beginning or end of the partial area, improving user convenience. it can.
[0174]
Needless to say, the video information processing apparatus according to the present invention is not limited to the form of the above-described embodiment, and can take any configuration without departing from the gist of the present invention.
[0175]
For example, the resetting of the start / end positions of the chapters that are partial areas according to the present invention can be performed after the original title and the chapters that are partial areas included therein are determined, and for further editing. It can be performed when editing the second title of the above, and it is equivalent to performing in various situations such as when editing the third title for editing, and when editing other than that. This is possible depending on the purpose.
[0176]
With the various embodiments described above, those skilled in the art can realize the present invention. However, it is easy for those skilled in the art to come up with various modifications of these embodiments, and have the inventive ability. It is possible to apply to various embodiments at least. Therefore, the present invention covers a wide range consistent with the disclosed principle and novel features, and is not limited to the above-described embodiments.
[0177]
【The invention's effect】
As described above in detail, according to the present invention, the start / end positions of chapters that are partial areas can be reset very easily, so that it is possible to easily obtain high-quality edited video particularly in editing processing. It is possible to provide a video information processing apparatus and a video information processing method capable of
[Brief description of the drawings]
FIG. 1 is a block diagram showing an example of a video information processing apparatus according to the present invention.
FIG. 2 is a schematic diagram showing a relationship between management information and actual video data of the video information processing apparatus according to the present invention.
FIG. 3 is a schematic diagram showing a relationship between management information and actual video data of the video information processing apparatus according to the present invention.
FIG. 4 is a flowchart showing the entire processing operation of the video information processing apparatus according to the present invention.
FIG. 5 is a flowchart showing in detail the contents of a chapter boundary moving process in units of one frame in step S14 of the flowchart of FIG. 4;
FIG. 6 is a similar flowchart.
FIG. 7 is a flowchart showing in detail the contents of chapter boundary movement processing to a VOBU boundary position in step S15 of the flowchart of FIG. 4;
FIG. 8 is a similar flowchart.
FIG. 9 is a flowchart showing in detail the spreading process to the playlist based on the original title process in step S18 of the flowchart of FIG. 4;
FIG. 10 is a similar flowchart.
FIG. 11 is a diagram showing an example of reproduction order information of a certain title.
FIG. 12 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG. 11;
13 is a partial diagram illustrating a state of resetting a boundary position of a partial region in the title illustrated in FIG.
14 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG.
FIG. 15 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG. 11;
16 is a partial diagram illustrating a state of resetting a boundary position of a partial region in the title illustrated in FIG.
FIG. 17 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG. 11;
FIG. 18 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG. 11;
FIG. 19 is a partial diagram illustrating a state of resetting the boundary positions of the partial areas in the title illustrated in FIG. 11;
FIG. 20 is a partial diagram illustrating a state of resetting the boundary position of the partial area in the title illustrated in FIG. 11;
FIG. 21 is a partial diagram illustrating a state of resetting the boundary positions of the partial areas in the title illustrated in FIG. 11;
FIG. 22 is a partial diagram illustrating a state of resetting the boundary positions of the partial areas in the title illustrated in FIG. 11;
FIG. 23 is a diagram showing a chapter creation screen in the video information processing apparatus according to the present invention.
FIG. 24 is a partial diagram illustrating a chapter boundary moving operation on the chapter creation screen in FIG. 23;
FIG. 25 is a partial diagram illustrating a chapter boundary moving operation on the chapter creation screen in FIG. 23;
FIG. 26 is a partial diagram illustrating a chapter boundary moving operation on the chapter creation screen in FIG. 23;
FIG. 27 is a partial diagram illustrating a chapter boundary moving operation on the chapter creation screen in FIG. 23;
FIG. 28 is a diagram showing a title list screen in the video information processing apparatus according to the present invention.
FIG. 29 is a diagram showing selection of a specific title for displaying a list of chapters on the title list screen of FIG. 28;
FIG. 30 is a diagram showing a chapter list screen included in the title selected in FIG. 29;
FIG. 31 is a partial diagram illustrating a chapter boundary moving operation on the chapter list screen of FIG. 30;
FIG. 32 is a partial diagram illustrating a chapter boundary moving operation on the chapter list screen of FIG. 30;
33 is a partial diagram illustrating a chapter boundary moving operation on the chapter list screen of FIG. 30;
FIG. 34 is a partial diagram illustrating a chapter boundary moving operation on the chapter list screen of FIG. 30;
FIG. 35 is a diagram showing a playlist creation screen in the video information processing apparatus according to the present invention.
FIG. 36 is a partial diagram illustrating a chapter boundary moving operation on the playlist creation screen of FIG. 35;
FIG. 37 is a partial diagram illustrating a chapter boundary moving operation on the playlist creation screen of FIG. 35;
FIG. 38 is a partial diagram illustrating a chapter boundary moving operation on the playlist creation screen of FIG. 35;
FIG. 39 is a partial diagram illustrating a chapter boundary moving operation on the playlist creation screen of FIG. 35;
FIG. 40 is a partial diagram illustrating a chapter boundary moving operation on the playlist creation screen of FIG. 35;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 30 ... Microcomputer block, 31 ... Work RAM, 33 ... Directory detection part, 34 ... Management information control part at the time of editing including the resetting part of a chapter start / end position, 35 ... Management information control part at the time of recording, 50 ... Encoder unit, 60... Decoder unit.

Claims (4)

A recording unit that receives real video data and records it in a storage area;
As the management information of the actual video data at the time of recording by the recording unit, it indicates which part is reproduced as a plurality of stream partial areas from the actual video data stream of the actual video data. 1 Generate reference information for the original title 1 A management information generation unit;
The first of the original title 1 A second management information generating unit that edits the reference information to generate first playlist information that is second reference information;
The position information when the chapter boundary corresponding to the position information of the stream partial area indicated by the reference information of the first playlist information is moved by one frame is calculated, and it is determined whether the moving process is appropriate based on the calculation result If it is determined as appropriate, the second reference information is edited to the third reference information to move the chapter boundary by one frame. As a result, if the cell range is changed, the cell range is set to 1 A third management information generating unit for generating second playlist information in which the third reference information is corrected to be changed by a frame;
Reproduction that selectively reproduces a plurality of stream partial areas from the actual video data stream of the actual video data according to the third reference information of the second playlist information generated by the third management information generation unit A video information processing apparatus. A recording unit that receives real video data and records it in a storage area;
As the management information of the actual video data at the time of recording by the recording unit, it indicates which part is reproduced as a plurality of stream partial areas from the actual video data stream of the actual video data. 1 Generate reference information for the original title 1 A management information generation unit;
The first of the original title 1 A second management information generating unit that edits the reference information to generate first playlist information that is second reference information;
The position information when the chapter boundary corresponding to the position information of the stream partial area indicated by the reference information of the first playlist information is moved to the VOBU boundary position is calculated, and whether or not the moving process is appropriate based on the calculation result. If it is determined that it is appropriate, if there is a cell change due to the chapter boundary movement process, it is determined whether the change of the cell range is appropriate. In order to move to the VOBU boundary position, the second reference information is edited into third reference information. As a result, if the cell range is changed, the third reference information is changed to the VOBU boundary position. A third management information generating unit that generates second playlist information in which the reference information is corrected;
Reproduction that selectively reproduces a plurality of stream partial areas from the actual video data stream of the actual video data according to the third reference information of the second playlist information generated by the third management information generation unit A video information processing apparatus. Receive real video data and record it in the storage area.
As the management information of the actual video data at the time of recording, a portion indicating which part is reproduced as a plurality of stream partial areas from the actual video data stream of the actual video data 1 Generate the reference information of as the original title,
The first of the original title 1 To generate first playlist information that is second reference information,
The position information when the chapter boundary corresponding to the position information of the stream partial area indicated by the reference information of the first playlist information is moved by one frame is calculated, and it is determined whether the moving process is appropriate based on the calculation result If it is determined as appropriate, the second reference information is edited to the third reference information to move the chapter boundary by one frame. As a result, if the cell range is changed, the cell range is set to 1 Generating second playlist information to correct the third reference information to change the frame,
Video information processing method for selectively reproducing a plurality of stream partial areas from an actual video data stream of the actual video data in accordance with the third reference information of the second playlist information . Receive real video data and record it in the storage area.
As the management information of the actual video data at the time of recording, a portion indicating which part is reproduced as a plurality of stream partial areas from the actual video data stream of the actual video data 1 Generate the reference information of as the original title,
The first of the original title 1 Edit the reference information to generate the first playlist information as the second reference information;
The position information when the chapter boundary corresponding to the position information of the stream partial area indicated by the reference information of the first playlist information is moved to the VOBU boundary position is calculated, and whether or not the moving process is appropriate based on the calculation result. If it is determined that it is appropriate, if there is a cell change due to the chapter boundary movement process, it is determined whether the change of the cell range is appropriate. In order to move to the VOBU boundary position, the second reference information is edited into third reference information. As a result, if the cell range is changed, the third reference information is changed to the VOBU boundary position. In order to correct the reference information of the second playlist information is generated,
A video information processing method, wherein a plurality of stream partial areas are selectively reproduced from an actual video data stream of the actual video data in accordance with the third reference information of the second playlist information.

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