JP4428315B2 - Editing apparatus and method, program, and program recording medium - Google Patents

Description

  The present invention relates to an editing apparatus and method for editing / recording video / audio content on an rewritable optical disk medium or the like, a program, and a program and a program recording medium.

  Conventionally, a user edits and plays back video content using a writable DVD (Digital Versatile Disc) drive that can be connected to a personal computer and DVD authoring software that also has an editing function that runs on the personal computer. Making possible optical disc media has been done.

  As a general method among these methods, there is a method of authoring media by the DVD-Video method in which editing of moving image data as video content is finished on a hard disk and then writing to an optical disc medium. However, with this method, editing work and writing to a recording medium cannot be performed in parallel.

  In recent years, DVD + RW Video Format (DVD + RW) and DVD Video Recording (DVD-VR) recording methods, or standards such as DVD + RW and DVD-RAM that allow random writing on a sector basis. With the advent, additional editing of video / audio content recorded on optical disc media, which is the final writing destination, has become possible. However, this editing method is not suitable for fine editing in frame units due to the seek characteristics of the optical disk media playback drive. This is because fragmentation of data occurs in such editing, so defragmentation processing that requires clustering again is necessary. Eventually, it is better to add after finishing editing on the hard disk in the same way as editing with the DVD-Video system. This is because the work time can often be shortened.

JP 2000-69362 A

  Here, when the frame unit size of the moving image data to be edited is a fixed length, a recording area is secured in advance on the recording destination optical disc medium, so that even if data is written in an arbitrary section during editing, Fragmentation does not occur.

  However, if the video data to be edited is in a format such as MPEG (Moving Picture Experts Group) having a GOP (Group Of Pictures) structure in which inter-frame compression is performed and the size of each frame is variable, the timeline Even if the recording is performed at the upper fixed time code position, if the size of the image data at the previous time code position is changed, a gap is generated in the recording area.

  The present invention has been proposed in view of such a conventional situation, and can perform editing work and writing to a recording medium in parallel, and the size of each frame can be changed like MPEG. An object of the present invention is to provide an editing apparatus and method capable of writing long moving image / audio data in a continuous area.

In order to achieve the above-described object, the editing apparatus according to the present invention performs an operation of designating a segment that is a reproduction range of one or more selected materials among a plurality of materials composed of video signals or audio signals. Editing in the recording target stream in a state where the recording target stream in which the segment of each material for which the playback range is specified is arranged according to the playback order is displayed on the display means using the graphical user interface Recording means for continuously recording a segment of each material determined to be written by work in an area secured in an overwritable recording medium, control means for controlling the display of the display means and the recording operation of the recording means DOO equipped with said control means, out of the material of the segment in the recorded stream, and materials that are not recording to the recording medium The display means controls the display means to display the unrecorded segments recognized by the recording means separately from the recorded segments that are the material recorded on the recording medium, and the segments of the material in the recording target stream Confirmation information for confirming to the user whether or not to write to the recording medium a segment being edited that is not recorded on the recording medium is displayed on the display means using a graphical user interface is allowed, depending on the user's response to said confirmation information, so as to control the recording means, the recording when placed in the target stream edit decision with respect to the edited segment is, the editing position segments after the recorded segment of material that controls the recording means so as to change to the non-recorded segments.

Further, in order to achieve the above object, the editing method according to the present invention, among the plurality of material consisting of a video signal or audio signal, one or more material segments segments to be reproduced range is specified reproduction order A recording target stream arranged according to the above is created, displayed on a display means using a graphical user interface , and in a recording medium capable of overwriting a segment of each material determined to be written by editing work in the recording target stream An unrecorded segment recognized by the recording means as a material not recorded on the recording medium among the segments of the material in the recording target stream is continuously recorded in the secured area by the recording means , The display means is controlled so that it is displayed separately from the recorded segment that is the material recorded on the recording medium. Confirmation information for confirming to the user whether or not to write the edited segment, which is the material being edited that is not recorded on the recording medium, among the segments of the material in the recording target stream is a graphical user Display on the display means using an interface, and control the recording means in response to a user response to the confirmation information, so that the editing decision is made on the segment being edited arranged in the recording target stream; If it is, the recorded segments of subsequent editing position segment material change in the non-recorded segment intends line recording operation for the recording medium.

  A program according to the present invention causes a computer to execute the editing process described above, and a program recording medium according to the present invention is a computer-readable medium on which such a program is recorded.

  According to the editing apparatus and method, the program, and the program recording medium according to the present invention, the editing operation and the writing to the recording medium can be performed in parallel, and the size of the frame unit is variable as in MPEG. Even long video / audio data can be written in a continuous area.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. In this embodiment, the present invention is applied to an editing apparatus that edits and records video content on an rewritable optical disc medium.

  First, FIG. 1 shows a schematic configuration of an editing apparatus according to the present embodiment. As shown in FIG. 1, an editing apparatus 1 according to the present embodiment includes a personal computer 10, a monitor 11, a keyboard 12, a mouse 13, a playback optical disk drive 14, a recording optical disk drive 15, and a hard disk drive. 16. A material optical disk medium 20 is inserted into the reproduction optical disk drive 14, and a recording optical disk medium 21 is inserted into the recording optical disk drive 15.

  The present invention is mainly applied to editing software that operates on a CPU (Central Processing Unit) in the personal computer 10. This editing software may be incorporated in advance in a memory in the personal computer 10 or may be installed in the personal computer 10 via a network or a program recording medium.

  The monitor 11 is connected to the personal computer 10 via a DVI (Digital Visual Interface) or the like, and displays editing software GUI (Graphical User Interface) and moving image data.

  The keyboard 12 and the mouse 13 are connected to the personal computer 10 via a USB (Universal Serial Bus) or the like. The user can control the editing software by operating the keyboard 12 and mouse 13.

  The reproduction optical disk drive 14 is connected to the personal computer 10 by ATA (Advanced Technology Attachment) or the like. The reproduction optical disk drive 14 reads the moving image data shot by the optical disk camcorder and recorded on the material optical disk medium 20 from the material optical disk medium 20 and transfers the moving image data to the personal computer 10.

  The recording optical disk drive 15 is connected to the personal computer 10 by ATA or the like, and writes moving image data to the recording optical disk medium 21.

  The hard disk drive 16 is connected to the personal computer 10 by IEEE 1394 or the like. The hard disk drive 16 stores moving image data read from the reproducing optical disk drive 14, moving image data written to the recording optical disk drive 15, temporary moving image data processed by the personal computer 10, or moving image data used by editing software. Holds internal data such as reference information.

  In the present specification, for the sake of convenience, it is assumed that the moving image data recorded on the material optical disk medium 20 and the recording optical disk medium 21 is compressed by the MPEG2 system at the same bit rate.

  Also, in this specification, a continuous video signal having a value is defined as “moving image data”, and an abstract video concept having meta information such as the format and the number of frames is described as “moving image data”. (Movie) stream ”.

  Next, the moving image editing process in the editing apparatus 1 will be described.

  FIG. 2 is a flowchart showing a workflow of video editing work performed by the user using editing software. FIG. 3 is an example of a GUI of editing software displayed on the monitor 11. The workflow in FIG. 2 will be described below with reference to the GUI in FIG. In the following, for the sake of simplicity, cut editing without transition is taken as an example.

  First, when starting the moving image editing, the user once secures a continuous recording area on the recording optical disc medium 21 (step S1). This continuous area may be secured for all remaining free areas of the recording optical disk medium 21. This operation is realized when the user inputs the number of frames of the moving image data through a GUI dialog or the like when editing is started. The editing software calculates the maximum recording size in bytes based on the input number of frames, and records this maximum recording size as internal data in the memory in the personal computer 10 or the hard disk drive 16.

  Next, the user selects a material file to be used from the material optical disk medium 20 (step S2). The material file indicates, for example, moving image data from the start to the end recorded as one file on the UDF when the material optical disk medium 20 is formatted in UDF (Universal Disk Format). On the GUI of FIG. 3, since the icon is displayed as the material file 31 in the material list window 30, the user can recognize and operate it.

  Subsequently, the user determines a scene which is a section to be used for editing in the moving picture stream of the material file selected in step S2 (step S3). A scene has, for example, a material file name, a start time code, and the number of frames as data. This operation is realized by dragging and dropping the material file 31 shown in FIG. 3 to the preview window 32 and determining the section while reproducing it. This scene is recorded in the memory in the personal computer 10 or the hard disk drive 16 as internal data of the editing software. For this scene, not only the section information but also the actual moving image data may be taken into the hard disk drive 16.

  Subsequently, the user sets the position and length when the scene cut out in step S3 is pasted to the recording target stream (step S4). This operation is realized by placing the icon of the scene 35 at a desired position on the material side timeline 34 in the timeline window 33 of FIG. 3 and re-determining the length within the range of the material file as a reference destination. Is done. Here, for the sake of convenience, it is assumed that the operation of step S3 and the operation of step S4 are performed simultaneously, and only the scene 35 already placed on the material side timeline 34 on the GUI of FIG. 3 is considered. This operation has the meaning that the corresponding section of the recording target stream 37 on the recording side timeline 36 is replaced with the scene 35 placed on the material side timeline 34 of FIG.

  Here, the section 35 on the recording source stream 37 serving as the replacement source scene 35 and the replacement destination is referred to as a segment. In FIG. 3, a recorded segment 38 is a segment that has already been recorded on the recording optical disk medium 21, an editing segment 39 is a segment that is being operated in step S4, and an unrecorded segment 40 is a recording optical disk medium. 21 is a segment not recorded in 21.

  Subsequently, the user notifies the editing software of the editing decision of the segment 39 being edited set in step S4 (step S5). Here, a dialog as shown in FIG. 4 is displayed on the GUI, and the writing of the segment to the recording optical disc medium 21 is made to the user together with the editing decision of the segment being edited. Either “write only this segment” or “write all remaining segments” is selected. If editing is not determined in step S5, the process returns to step S4 again to reset the scene. Hereinafter, the case where editing is determined will be described.

  The operation in step S5 is to change the segment 39 being edited in FIG. 3 into the recorded segment 38 or the unrecorded segment 40. These three types of segments will be described with reference to FIG.

  In FIG. 5, seg1, seg2, seg3, and seg4 correspond to the recorded segment 38 of FIG. The moving image data corresponding to the recorded segment 38 is continuously recorded in the reserved area in the recording optical disc medium 21 in a left-justified manner.

  In FIG. 5, seg6 corresponds to the editing segment 39 in FIG. The currently edited segment 39 is simply the section information of the scene 35 that is the source and the section information of the recording target stream that is the replacement destination, but the user has not yet indicated the intention to edit the section parameter, and frequently May change.

  In FIG. 5, seg5 corresponds to the unrecorded segment 40 in FIG. The unrecorded segment 40 has the same section information as the segment 39 being edited, but the user has already indicated the intention to edit the section parameter.

  In the GUI shown in FIG. 5, the recorded segment 38, the editing segment 39, and the unrecorded segment are distinguished by changing colors. However, the present invention is not limited to this example. You may make it distinguish using a display.

  FIG. 6 shows changes in the GUI display before and after the edit determination operation in step S5 and the state of writing to the recording optical disk medium 21 in conjunction therewith.

  FIG. 6A shows a state before the editing is decided. In FIG. 6A, the position and length of the scene 35 are set on the material-side timeline 34, but the editing decision is not made in the GUI dialog of FIG.

  FIG. 6B shows a state immediately after editing is decided on the GUI dialog shown in FIG. In FIG. 6B, a part of seg3 and seg4 which were recorded segments 38 is replaced with seg6, and the remaining part is seg3 'which is a newly recorded segment 38 and seg4' which is an unrecorded segment 40. It has become.

  In FIG. 6C, after editing and selecting “write only this segment” or “write all remaining segments” in the GUI dialog of FIG. 4, writing of the seg6 to the recording optical disc medium 21 is completed. It shows the state.

  FIG. 6D shows an editing decision by selecting “write all remaining segments” in the GUI dialog of FIG. 4 and through the state shown in FIG. 6C, the remaining seg 4 ′ and seg 5 are recorded on the recording optical disc. It shows a state in which writing to the medium 21 is completed.

  When “pending write” is selected on the GUI dialog of FIG. 4, the GUI display changes from FIG. 6A to FIG. 6B, and when “write only this segment” is selected. If the GUI display changes from FIG. 6 (A) to FIG. 6 (C) to FIG. 6 (C) and “write all remaining segments” is selected, FIG. 6 (A) to FIG. The GUI display changes to FIG. 6D through (B) and (C).

  When “pending writing” is selected on the GUI dialog in FIG. 4, the GUI display changes to FIG. 6B, but the information in FIG. 6A is stored in the memory in the personal computer 10. If it is stored, it is possible to immediately return to the state of FIG. 6A without accessing the recording optical disk medium 21 when it is desired to cancel the editing decision.

  Hereinafter, the reason why the behavior shown in FIG. 6 occurs will be described with reference to FIG. FIG. 7 shows the processing performed on the MPEG2 moving image data in the replacement part of seg3 and seg6 from the state of FIG. 6 (A) to the state of FIG. 6 (C). In FIG. 7, for convenience, it is assumed that the MPEG2 moving image data is arranged in the display order.

  In FIG. 7A corresponding to FIG. 6A, only the position of seg3 to be replaced with seg6 is determined, and no change has occurred in both MPEG2 moving image data.

  In FIG. 7B corresponding to FIG. 6B, both MPEG2 moving image data are not changed, but seg3 is seg3 ', and all segments after seg6 are unrecorded segments.

  In FIG. 7C corresponding to FIG. 6C, the MPEG2 moving image data on the recording optical disk medium 21 is actually changed and recorded on the recording optical disk medium 21. Here, MPEG recompression processing is performed near the joint of seg3 'and seg6, and the remaining moving image data of seg6 is recorded in the continuous area. The size of the joint portion is not the same as the moving image data recorded before that. Therefore, in the editing apparatus 1 that records MPEG2 moving image data in a continuous area, all the recorded segments that have already been recorded after this joint are all unrecorded segments and are recorded again as shown in FIG. 6B. Yes. This re-recording process becomes a problem particularly when it is performed on an optical disk medium with a small upper limit number of overwrites, but the number of times can be suppressed by the user holding off the editing decision. It is also possible to count and suppress this re-recording count with editing software.

  The writing performed in FIGS. 7B and 7C is performed in the background during the editing operation. As a result, the editing apparatus 1 can perform the user's editing work and writing to the recording optical disk medium 21 in parallel.

  Although FIG. 6 shows the case where seg6 is overwritten and edited at the connection part of seg3 and seg4, it is needless to say that the present invention is not limited to overwriting editing.

  As another example, FIG. 8 shows a change in GUI display when interrupt insertion editing is performed, and a state of writing to the recording optical disc medium 21 in conjunction therewith.

  FIG. 8A shows a state before editing is decided, and FIG. 8B shows a state immediately after editing is decided on the GUI dialog shown in FIG. In FIG. 8B, seg6 is inserted between seg3 and seg4 which are recorded segments 38, and seg6 and seg4 are unrecorded segments. In FIG. 8C, after selecting and editing “write only this segment” or “write all remaining segments” in the GUI dialog of FIG. 4, writing of seg6 to the recording optical disc medium 21 is completed. It shows the state. FIG. 8D shows a recording optical disc medium for the remaining seg4 and seg5 after selecting and editing “write all remaining segments” in the GUI dialog of FIG. 21 shows a state in which writing to 21 is completed.

  In the case of interrupt insertion editing in FIG. 9, the logical positions of seg4 and seg5 are changed as compared with the case of overwriting editing in FIG. 6, but writing to the recording optical disc medium 21 and accompanying display on the GUI are as follows. It will be almost the same.

  Further, FIG. 9 shows a change in GUI display in the case of deleting and editing, and a state of writing to the recording optical disk medium 21 in conjunction therewith.

  FIG. 9A shows a state before editing is determined, and FIG. 9B shows a state immediately after editing is determined on the GUI dialog of FIG. In FIG. 9B, seg3 which was the recorded segment 38 is deleted, and seg4 is an unrecorded segment. FIG. 9C shows a state in which “write all remaining segments” is selected in the GUI dialog of FIG. 4 and editing is determined, and writing to the recording optical disc medium 21 is completed for the remaining seg4 and seg5. It is a thing.

  In the case of deletion editing in FIG. 10, unlike the case of overwrite editing in FIG. 6, when “write only this segment” is selected on the GUI dialog in FIG. 4 and when “hold write” is selected, And the writing operation to the recording optical disk medium 21 are not changed.

  Returning to FIG. 2, the user determines whether or not all editing operations have been completed (step S6). If not finished, the process returns to step S2.

  Finally, in order to finish the editing operation, the user writes an unrecorded segment to the recording optical disc medium 21 and performs a close process on the file system if necessary (step S7).

  As described above, the editing apparatus 1 according to the present embodiment can reduce the work time because the moving image editing work and the writing to the recording optical disk medium 21 can be performed in parallel. Further, when editing moving image data having a variable frame-unit size such as MPEG, it can be recorded in a continuous area.

  Furthermore, since the section of the recording target stream that has been written to the recording optical disk medium 21 is displayed, the user can know the progress of the work and can control the number of times of writing, for efficient editing. You can do it.

  It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  For example, the segment actually transitions as shown in FIG. That is, when editing is determined, the current segment is changed to an unrecorded segment, and when a write request is made, the current segment is changed to a recorded segment. On the other hand, when a change occurs in the previous segment during or after recording, a transition is made to an unrecorded segment. Thus, during the transition from the unrecorded segment to the recorded segment, the segment becomes a recording segment internally. Therefore, this recorded segment may be displayed separately from at least the unrecorded segment on the recording side timeline.

  Further, in the editing apparatus 1 described above, since the reference point for writing to the area secured on the recording optical disk medium is used as the start address of the secured area, the recording target stream is recorded from this reference point. In step S5, if the segment prior to that segment is an unrecorded segment, the previous segment may be changed, and therefore writing cannot be set. Therefore, an offset may be provided at the reference point so as to be in the middle or the end. In this case, it is possible to write continuously in the minus direction from the reference point.

  In addition, when moving image data is recorded on a recording optical disk medium, if a certain degree of fragmentation is allowed, the recording target stream may be divided into a plurality of pieces and written in a continuous area for each division unit.

  In the above-described embodiment, the case where the video content is edited / recorded on the optical disc medium has been described. However, the present invention can also be applied to the case where the audio content is edited / recorded.

  In the above-described embodiment, the moving image editing work is performed by editing software. However, at least a part of the processing may be performed by hardware.

It is a figure which shows schematic structure of the editing apparatus in this Embodiment. It is a flowchart which shows the workflow of the moving image editing operation | work which a user uses editing software. It is a figure which shows an example of GUI of the editing software displayed on the monitor of an editing apparatus. It is a figure which shows an example of the GUI dialog displayed on a monitor when performing edit determination of the segment under edit. It is a figure explaining the recorded segment, the segment under edit, and the unrecorded segment. It is a figure which shows the change of the GUI display before and behind edit determination operation in the case of overwriting editing, and the mode of writing to the recording optical disk medium linked with it. It is a figure showing the process performed on MPEG2 moving image data by the replacement part of seg3 and seg6 from the state of FIG. 6 (A) to the state of FIG. 6 (C). It is a figure which shows the change of the GUI display before and after edit decision operation in the case of interruption insertion editing, and the mode of writing to the recording optical disk medium linked with it. It is a figure which shows the change of the GUI display before and after edit decision operation in the case of deletion edit, and the mode of writing to the optical disk medium for recording linked with it. It is a figure which shows the transition of the state of a segment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Editing apparatus, 10 Personal computer, 11 Monitor, 12 Keyboard, 13 Mouse, 14 Playback optical disk drive, 15 Recording optical disk drive, 16 Hard disk drive, 20 Material optical disk medium, 21 Recording optical disk medium

Claims (6)

An operation means for performing an operation of designating a segment that is a reproduction range of one or more selected materials among a plurality of materials composed of video signals or audio signals;
In a state where the recorded stream each material segment reproduction range is specified are arranged in accordance with the reproduction order is displayed on the display means by using a graphical user interface, it is determined write by editing in the recorded stream recording means for continuously recording in an area reserved in the overwritable recording medium segments of each material were,
Control means for controlling the display of the display means and the recording operation of the recording means,
The control means, among the segments of the material in the recording target stream, unrecorded segments that are recognized by the recording means as material not recorded on the recording medium are the materials recorded on the recording medium. The display means is controlled so as to be displayed separately from a recorded segment, and a segment being edited which is a material being edited that is not recorded on the recording medium among the segments of the material in the recording target stream is recorded. Confirmation information for confirming whether or not to write to the medium is displayed on the display means using a graphical user interface, and the recording means is controlled in accordance with a user response to the confirmation information. If edit decision with respect to the edited segment disposed recorded stream is, the editing position segment Editing apparatus that controls the recording device to the recorded segments of subsequent preparative material change in the non-recorded segments. The recording medium has a plurality of divided areas,
The recording means, the recording target stream by dividing the editing apparatus according to claim 1, wherein you recorded continuously each divided regions of the recording medium. A recording target stream is created in which a segment of one or more materials for which a segment to be a playback range is specified among a plurality of materials consisting of video signals or audio signals is arranged in accordance with the playback order, and using a graphical user interface is displayed on the display unit continuously recorded by the recording means in an area reserved in the overwritable recording medium segment of each material determined write by editing in the recorded stream,
Of the segments of the material in the recording target stream, an unrecorded segment recognized by the recording means as a material not recorded on the recording medium is a recorded segment that is a material recorded on the recording medium. Whether or not to write the editing segment, which is the material being edited that is not recorded on the recording medium, to the recording medium among the segments of the material in the recording target stream, by controlling the display means so as to display them separately. Confirmation information for confirming to the user is displayed on the display means using a graphical user interface, and the recording means is controlled according to the user's response to the confirmation information, and arranged in the recording target stream . If it is the edit decision with respect to the edited segments, the editing position segments for subsequent material Serial a recorded segment with the change in the non-recorded segment intends row the recording operation on the recording medium editing method. The recording medium has a plurality of divided areas,
The recorded stream by dividing the editing method according to claim 3, wherein you recorded continuously each divided regions of the recording medium. A program for causing a computer to execute a predetermined process,
On the computer,
A recording target stream is created in which a segment of one or more materials for which a segment to be a playback range is specified among a plurality of materials consisting of video signals or audio signals is arranged in accordance with the playback order, and using a graphical user interface is displayed on the display means, a step of continuously recorded by the recording means in an area reserved in the overwritable recording medium segment of each material determined write by editing in the recorded stream,
Of the segments of the material in the recording target stream, an unrecorded segment recognized by the recording means as a material not recorded on the recording medium is a recorded segment that is a material recorded on the recording medium. Whether or not to write the editing segment, which is the material being edited that is not recorded on the recording medium, to the recording medium among the segments of the material in the recording target stream, by controlling the display means so as to display them separately. Confirmation information for confirming to the user is displayed on the display means using a graphical user interface, and the recording means is controlled according to the user's response to the confirmation information, and arranged in the recording target stream . If it is the edit decision with respect to the edited segments, the editing position segments for subsequent material The serial recorded segment is changed to the non-recorded segments and row cormorants procedures recording operation on said recording medium
A program for running A computer-readable program recording medium on which a program for causing a computer to execute a predetermined process is recorded,
On the computer,
A recording target stream is created in which a segment of one or more materials for which a segment to be a playback range is specified among a plurality of materials consisting of video signals or audio signals is arranged in accordance with the playback order, and using a graphical user interface is displayed on the display means, a step of continuously recorded by the recording means in an area reserved in the overwritable recording medium segment of each material determined write by editing in the recorded stream,
Of the segments of the material in the recording target stream, an unrecorded segment recognized by the recording means as a material not recorded on the recording medium is a recorded segment that is a material recorded on the recording medium. Whether or not to write the editing segment, which is the material being edited that is not recorded on the recording medium, to the recording medium among the segments of the material in the recording target stream, by controlling the display means so as to display them separately. Confirmation information for confirming to the user is displayed on the display means using a graphical user interface, and the recording means is controlled according to the user's response to the confirmation information, and arranged in the recording target stream . If it is the edit decision with respect to the edited segments, the editing position segments for subsequent material The serial recorded segment is changed to the non-recorded segments and row cormorants procedures recording operation on said recording medium
The computer-readable recording medium with which the program for performing this was recorded.

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