JP2001216768A - Disk editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that it takes a long time for an operation such as pre-roll or speed adjustment or dubbing, and in addition it is necessary to redo the edition of a whole part following the corrected part once again even at the time of redoing the edition of one part. SOLUTION: A digital video stream is recorded in a disk, and plural play lists are prepared and used for the reproduction of materials and the reproduction after edition, and each play list is provided with one operating part, or each play list is switched by one operating part so as to be used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk editing apparatus for digitally processing a video signal and an audio signal, recording the digital signal as a bit stream on a disk recording medium, and editing the video.

[0002]

2. Description of the Related Art Conventionally, in video editing using a video tape, assembling editing is performed by dubbing necessary scenes one after another by using two VTRs on a reproducing side and a recording side, and performing joint recording. Is basically done.

FIG. 5 is a conceptual diagram of this assemble editing, and shows a playback video tape 31 loaded in a playback VTR.
A playback-side operation unit 16 for controlling playback thereof;
A recording video tape 32 loaded in the TR, an editing operation unit 26 for controlling reproduction thereof, an edit start button 27 for starting and controlling a splicing recording, and an editing end button 28 for stopping a splicing recording are shown. .

[0004] A stop button 12,
There are a pause button 13, a play button 14, and a jog shuttle dial 15 for operating fast forward rewind and forward / backward frame advance, and are used to find the start and end points of the scene. The recording-side operation unit 26 is also provided with similar operation buttons.

[0005] Hereinafter, video editing using the conventional video tape will be described.

First, the editing-side operation unit 26 is operated to temporarily stop at the last point of the previous scene that has already been recorded. Next, the reproduction side operation unit 16 is operated to search for the start point of the next scene, and pause. At this point, by pressing the edit start button 27, the two VTRs perform a splicing recording operation such as pre-rolling or tuning, and the previous scene and the next scene are connected to the recorded video tape and dubbed. Then, when the end point of the scene has passed, by pressing the edit end button 28, all the one scene is dubbed, and the operation for one time is completed. Thereafter, by repeating this operation, necessary scenes can be selected, connected, and edited.

[0007]

However, in the above-mentioned editing, since operations such as pre-rolling and running are always required at the editing point because of the tape, there is a problem that it takes time. There is a problem that, even when editing is partially redone, it is necessary to redo all of the parts after the correction.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and there is no need to perform operations such as pre-rolling and running, dubbing, and the same operation as in conventional video tape editing. It is an object of the present invention to provide a disk editing apparatus which can be edited by a user and which is easy to memorize, and which is intuitive and easy to understand.

[0009]

In order to solve this problem, the present invention records a digital video stream on a disc, provides two playlists, and plays back material.
It is used for reproduction after editing, and each playlist is provided with one operation unit, or one playlist is switched and used by one operation unit. With the above configuration, dubbing is not necessary, and editing can be performed by the same operation as conventional video tape editing, and the operation method is easy to remember,
This has the effect of enabling intuitive and easy-to-understand editing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG. 2 is a configuration diagram of a disk editing apparatus according to an embodiment of the present invention.

In FIG. 2, 54 is an input terminal, 55 is an AD converter for converting an analog signal to a digital signal, 56 is an encoder for compressing and mixing digital video signals and digital audio signals, respectively, and converting them into stream data.
Is a buffer memory for temporarily storing stream data, 58 is a buffer memory control for managing the data storage location of the buffer memory 57, 60 is a drive for storing a disk recording medium, 70 is a microcomputer for performing overall control,
9 receives the instruction of the microcomputer 70, writes the stream data read from the buffer memory to the drive,
Drive control for writing the stream data read from the drive to the buffer memory; 51, a playback decoder for separating and restoring the playback-side stream data from the buffer memory 57 into digital video data and digital audio data; 52, a digital video / audio signal Is converted to analog video / audio data, 53 is a reproduction monitor for displaying a DA-converted analog video signal on the reproduction side, 61 is digital video data and digital audio data for the stream data on the editing side from the buffer memory 57. An editing decoder for converting a digital video / audio signal into an analog video / audio signal; an editing monitor for displaying the DA-converted analog video signal on the editing side; , 26 are editing side operation units.

The operation of the disk editing apparatus configured as described above will be described below.

First, a video / audio signal input to the input terminal 54 at the time of recording is converted into digital data by an AD converter 55, and is converted into stream data in which video data and audio data are compressed and mixed by an encoder 56.
While being temporarily stored in the buffer memory 57, the data is written as a digital video stream to the drive 60 of the disk recording medium through the drive control 59. At this time, a reproduction playlist for reproducing the entire digital video stream is also created.

When the reproduction is performed by operating the reproduction-side operation section 16, a control signal is issued from the microcomputer 70 in accordance with the reproduction playlist, and the drive 60 is controlled through the drive control 59.
Is temporarily stored in the buffer memory 57, and the stream data on the reproduction side from the buffer memory 57 is reproduced by the reproduction decoder 51.
The digital video and audio data are separated and restored into digital video and digital audio data, and the digital video and audio signals are converted into analog video and audio by the DA converter for reproduction 52 and displayed on the monitor 53 for reproduction.

Next, in the case of editing, a duplicate of the reproduction playlist is made in advance to be used as the edit playlist.

When reproducing by operating the editing-side operation unit 26, a control signal is issued from the microcomputer 70 according to the editing playlist, and the drive 60 controls the drive 60 through the drive control 59.
Is temporarily stored in the buffer memory 57, and the stream data on the editing side from the buffer memory 57 is edited by the editing decoder 61.
It is separated and restored into digital video data and digital audio data, and the digital video / audio signal is converted into analog video / audio by the DA converter 62 for editing, and displayed on the monitor 63 for editing.

FIG. 1 is a conceptual diagram showing the operation of the disc editing apparatus according to one embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a digital video stream recorded on a disk, 11 denotes a reproduction playlist for reproducing the entire digital video stream 10, 16 denotes a reproduction operation unit for controlling the reproduction operation of the reproduction playlist 11, and 12 denotes reproduction. Stop button of the side operation unit, 13 is a pause button of the reproduction side operation unit 16, 14 is a play button of the reproduction side operation unit 16, 15
Denotes a jog shuttle dial of the playback side operation unit 16, 21 denotes an editing playlist for storing edited scenes, 26 denotes an editing side operation unit for controlling the playback operation of the editing playlist 21, and 22 denotes an editing side operation unit 26. , A pause button 23 of the editing-side operation unit 26, a playback button 24 of the editing-side operation unit 26, a jog shuttle dial 25 of the editing-side operation unit 26, and a scene start point 17 in the editing playlist. And an edit button for registering an end point.

Hereinafter, the operation will be described based on the conceptual diagram of FIG.

First, the editing-side operation unit 26 is operated to temporarily stop at the last point of the previously registered scene. Next, the reproduction side operation unit 16 is operated to search for the start point of the next scene, and pause. At this point, by pressing the edit button 17, the start point and end point of the scene are registered in the editing playlist 21, and one operation is completed. Thereafter, by repeating this operation, necessary scenes can be selected, connected, and edited.

In the example of FIG. 1, four scenes 2, 6, 8, and 4 of the digital video stream 10 are registered in the editing playlist 21. An example of the registration processing of the scenes will be described with reference to FIG. Will be explained.

First, the playback side operation unit 16 is operated to pause at the start point b of the first scene, and when the edit button 17 is pressed, b-j is added to the edit playlist 21 as shown in FIG.
Is registered.

Next, the last point c of this scene is searched for by the editing side operation unit 26, and the scene is temporarily stopped. On the other hand, the reproduction side operation unit 16
Is operated, the image is paused at the start point f of the next scene, and the edit button 17 is pressed. As shown in FIG. 3B, the first scene of the editing playlist 21 changes to bc, and is newly set. f-
The scene j is registered.

Similarly, the editing-side operation unit 26 temporarily stops at the final point g, and the playback-side operation unit 16 starts the next scene h.
When the edit button 17 is pressed and the edit button 17 is pressed, the second scene of the editing playlist 21 is fg as shown in FIG.
And a new scene h-j is registered.

Further, the editing operation unit 26 temporarily stops at the final point i, and the reproduction operation unit 16 starts the next scene start point d.
When the editing button 17 is pressed and the editing button 17 is pressed, the third scene of the editing playlist 21 is hi-i as shown in FIG.
, And a scene dj is newly registered.

Finally, when the editing operation section 26 pauses at the final point e and presses the edit button 17, the fourth scene of the editing playlist 21 is changed to de as shown in FIG. change.

In this manner, by operating the reproduction-side operation unit 16 and the editing-side operation unit 26 in the same manner as a conventional videotape editing operation, the editing playlist 21 is edited.
Since no scenes can be registered, and operations such as pre-rolling and running and dubbing are not performed, editing operations can be easily performed without time. Further, when redoing a part of the editing, it is only necessary to change the scene to be corrected in the editing playlist 21, and the correction can be performed without any trouble.

(Embodiment 2) FIG. 4 is a conceptual diagram for explaining the operation of a disc editing apparatus according to a second embodiment of the present invention. The operation unit shown in FIG. And a changeover switch 18 is provided. That is, as described in the first embodiment, it is not necessary to operate the reproduction-side operation unit 16 and the edit-side operation unit 26 at the same time, so that the same operation unit 16 is used while switching with the changeover switch 18. is there. The operation can be performed in the same manner as in the first embodiment by tilting the changeover switch 18 to the left to set the start point of the scene and tilting the changeover switch 18 to the right to set the end point.

The operating procedure is set by tilting the changeover switch 18 to the left to set the start point of the scene and tilting it to the right to set the end point.

In this embodiment, the decoder shown in FIG.
Since only one set of A conversion and monitor is required, it is effective for cost reduction. In addition, although the time and effort required to operate the changeover switch 18 increases, only one operation unit 16 is required, which is effective when the display panel area of the operation unit is small.

By storing both the play list 11 and the edit list 21 on the same disk recording medium as the digital video stream 10, even if it becomes necessary to modify the edit at a later date, the original play list can be modified. Since there is a playlist, it can be easily modified. In addition, scenes that were not included in the first edit can be added.

The components such as the operation unit do not necessarily have to be physically configured, but may be a method of operating the operation unit displayed on a display screen of a CRT or the like.
The same effect can be expected by operating the operation unit using a keyboard or mouse connected to the computer.

[0033]

As described above, according to the present invention, operations such as pre-rolling and run-out and dubbing are not performed, so that it takes no time and the operation is the same as that of conventional videotape editing. Because of this, there is a remarkable effect that the operation is easy to remember, intuitive and easy to understand.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a disc editing apparatus according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a disc editing apparatus according to the embodiment;

FIG. 3 is a view showing a state in which the scene of FIG. 1 is registered in a playlist in the disc editing apparatus according to the embodiment;

FIG. 4 is a conceptual diagram of a disk editing device according to a second embodiment of the present invention.

FIG. 5 is a conceptual diagram of a conventional video editing device.

[Explanation of symbols]

 Reference Signs List 10 Digital video stream 11 Playback playlist 12 Playback operation unit 13 Editing playlist 14 Editing operation unit 15 Edit button

Claims (3)

[Claims] 1. A playlist generation unit for generating a playlist including information indicating a reproduction position, a reproduction time, a reproduction order, and the like of a video stream digitally recorded in a disk recording medium, and based on the playlist, A playback unit for playing back a video stream; and a plurality of operation units for instructing the playlist generation unit of a start point and an end point of a scene in each playlist. And a allocating unit for allocating playlists one by one. 2. A play list generating section for generating a play list including information indicating a play position, a play time, a play order, and the like of a video stream digitally recorded in a disk recording medium, and based on the play list, A playback unit for playing back a video stream, and one operation unit for instructing the playlist generation unit on the start point and end point of a scene in each playlist, and which playlist is played back from the operation unit And a switching unit for switching between the two. 3. A playlist registration unit for registering a playlist, wherein the playlist registration unit records the playlist on the same medium as a disk recording medium on which a video stream corresponding to the playlist is recorded. The disk editing apparatus according to claim 1 or 2, wherein