JPH1145555A - Editing method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an editing program provided with a particular effect only by reading out a new file as occasion demands by performing a prescribed signal processing for a desired part of the editing program and recording this edition as a new file. SOLUTION: For editing by using a disk, desired files out of plural files housed in a file housing part 2 are reproduced in a desired order to make an editing program. Now, for instance, when a particular effect of a level change, etc., is given to the editing program produced based on an editing list, the editing program of an output of the file housing part 2 is fed back to its input side to supply a level variable part 8. Then, the level change of a particular effect is performed on a part to be given this particular effect in the supplied editing program. The part provided with a particular effect subjected to the level change processing in the editing program is subsequently sent as a new file to the file housing part 2, and is housed in a file FN.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an editing method and apparatus for editing, for example, video and audio files recorded on a disk-shaped recording medium.

[0002]

2. Description of the Related Art In recent years, in order to realize easy and quick editing of video and audio, a large-capacity disk-shaped recording medium (for example, a hard disk or the like, hereinafter simply referred to as a disk) capable of randomly accessing a recording medium has been proposed. To) is used. Video and audio data are recorded on the disc in a file format. When editing, the recorded video and audio data files are read and edited. Note that editing using a disk is called non-linear editing, as opposed to normal linear editing using a magnetic tape.

[0003] In the non-linear editing of video and audio using the above-mentioned disc, when a special effect such as a level change or slow reproduction is applied to a signal after editing, a reproduction process using control data is conventionally performed.

[0004] Here, taking the level change as an example of the special effect, FIG. 4 shows the overall configuration of a conventional editing apparatus that performs a reproduction process using the control data.

[0005] In FIG. 4, a video signal, an audio signal, and the like are supplied to an input terminal 101 as a recording signal to be recorded on a disk, and the video signal, an audio signal, and the like are sent to a file storage unit 102.

The file storage unit 102 has a hard disk drive using, for example, a hard disk as a disk-shaped recording medium as a main component, and stores video and audio signals supplied from the input terminal 101 in a file format (for example, Files F1, F2, F3
...). The recording in the file format in the file storage unit 102 is performed by the recording address control by the recording control unit 104, while the reproduction in the file format is performed by the reproduction address control by the reproduction order control unit 105.

[0007] The edit data processing unit 106 includes, for example, an edit list (edit list: E) as shown in FIG.
DL) is created, updated, and changed, and the list is stored in the edit list storage unit 107. Further, the edit data processing unit 106 associates file recording management information by the recording control unit 104 with the edit list, and when editing based on the edit list, the file management information and the edit Based on the list, the file playback order in the playback order control unit 105 is determined.

As a result, the file storage unit 102 outputs an editing program formed by reproducing the files in the reproduction order based on the editing list.

The editing program signal output from the file storage unit 102 is sent to a level varying unit 108. The level variable unit 108 is the level data processing unit 1
Based on the control data from 09 (level control data), the signal level of the editing program is varied. As described above, the editing apparatus 100 performs the variable level processing on the edited signal based on the control data.

The signal of the editing program whose level has been changed is sent from the terminal 103 to the subsequent stage as a reproduction signal.

Here, FIG. 4 and FIG.
The state of the variable level processing using the control data in the editing apparatus will be specifically described. FIG. 6 shows an example of a read file (FIG. 6A) based on the edit list of FIG. 5, an example of an edit program (FIG. 6B), and an example of the above-mentioned variable level control data (FIG. 6B). FIG. 6C shows an example of the editing program (FIG. 6D) after the level change processing based on the control data.

When performing the editing as shown in FIGS. 6A and 6B, the editing data processing unit 106 creates an editing list as shown in FIG. 5 and stores this editing list in the editing list storage. The information is stored in the unit 107. Note that the cut numbers in FIG. 5 correspond to scene numbers, and the edit points indicate edit in points and out points in the file.

First, according to the editing list shown in FIG. 5, the editing apparatus 100, as shown in FIG. 6A, points P1 and P2 of the file F1 and points P3 and P4 and P5 and P6 of the file F2. By reading the video / audio data in this order, an editing program connecting these files F1 and F2 is created as shown in FIG.

Next, the editing apparatus 100 outputs control data for level change as shown in FIG. 6C which is synchronized with the lapse of the reproduction time of the editing program, for example, as shown in FIG. 6D. As shown in (1), a level change process is performed on a signal portion corresponding to the section between points P3 and P4 of the file F2 of the editing program.

As a result, an editing program that has been subjected to the variable level processing is obtained.

[0016]

However, the special effect reproduction processing as described above has the following two drawbacks (1) and (2).

(1) Prior to executing the reproduction of the special effect, the control data must be created, and the created control data is transferred to the level data processing unit 109 (or the file storage unit 102). It is necessary to save in such as. That is, the control data is created and stored in association with the edit list,
When executing the reproduction of the special effect, it is necessary to synchronize the creation of the editing program corresponding to the editing list with the reading of the control data corresponding to the editing program. Therefore, for example, when the synchronization is lost, it is not possible to apply a special effect to a desired position of the editing program, which is not preferable.

(2) Special effects cannot be applied to the editing program in duplicate. That is, in the case of the configuration of FIG. 4, the editing program to which the special effect has been applied according to the control data is supplied to the subsequent configuration as it is, so that the overlapping special effect cannot be applied. Note that, in the configuration of FIG.
If the constituent elements including the level data processing unit 109 are connected in series in a plurality of stages, it is possible to apply special effects redundantly. In this case, however, the configuration becomes complicated and large, and the level of Control data for the unit 108 is required, and for each, the above (1)
The disadvantages described in item (1) will occur.

Accordingly, the present invention has been made in view of such circumstances, and it is not necessary to create and store control data prior to execution of special effect reproduction, and it is also possible to apply special effects repeatedly. It is an object to provide a possible editing method and device.

[0020]

According to the editing method and apparatus of the present invention, an editing program corresponding to an editing list is created, and a signal of a desired portion in the editing program is subjected to predetermined signal processing. The signal of the desired portion subjected to the signal processing is recorded as a new file on the disc-shaped recording medium, and a new edit list including the new file is created, and a new edit program is created according to the new edit list. The creation solves the above-described problem.

That is, according to the present invention, a signal obtained by subjecting a desired portion of an editing program to predetermined signal processing is recorded as a new file on a disk-shaped recording medium, so that the new file becomes necessary. It is possible to obtain, for example, an editing program to which a special effect has been applied simply by reading out the information. Further, by recording a signal obtained by subjecting a new file to predetermined signal processing again as a new file on the disk-shaped recording medium, it is possible to achieve a special effect that is duplicated.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an overall configuration of an editing apparatus according to an embodiment for realizing the editing method of the present invention. Note that FIG.
Describes a configuration in which a signal level is changed as an example of the special effect.

In FIG. 1, a video signal, an audio signal, and the like are supplied to an input terminal 1 as a recording signal to be recorded on a disk. Sent to unit 2.

The file storage unit 2 has a hard disk drive using, for example, a hard disk as a disk-shaped recording medium as a main component, and stores the video and audio signals supplied from the input terminal 1 in a file format (for example, (Files F1, F2, F3,...). Recording in the file format in the file storage unit 2 is performed by recording address control by the recording control unit 4, while reproduction in the file format is performed by reproduction address control by the reproduction order control unit 5.

The edit data processing section 6 has an edit list (edit list: ED) shown in FIG.
L) is created, updated, and changed, and the list is stored in the edit list storage unit 7. The editing data processing unit 6 associates the file recording management information by the recording control unit 4 with the editing list, and when editing based on the editing list, the file management information and the editing The file playback order in the playback order control unit 5 is determined based on the list.

As a result, the file storage unit 2 outputs an editing program formed by reproducing the files in the reproduction order based on the editing list.
As described above, in editing using a disc, a desired file (or an arbitrary section in the file) is reproduced in a desired order from a plurality of files stored in the file storage unit 102 to generate an editing program. Is done.

The editing program is sent from the terminal 3 to the subsequent stage as a reproduction signal. For example, this editing device 1
When 0 is used in a broadcasting station, the editing program is sent to a broadcasting device and broadcasted, or is recorded on another recording medium (for example, a magnetic tape or the like) as the latter-stage configuration. It should be noted that the editing program for which the final editing has been completed in this way may be called complete packet data.

Here, for example, when a special effect (a level change in the present embodiment) is applied to an editing program created based on an editing list similar to that shown in FIG. 5, the editing apparatus 10 according to the present embodiment. Then, the file storage unit 2
Is fed back to the input side and supplied to the level varying unit 8. At this time, the level changing section 8 changes the level of a portion where a special effect is to be applied in the supplied editing program.

The portion of the editing program that has undergone the level change processing is then sent to the file storage unit 2 and stored as a new file (FN). That is, in the file storage unit 2, the signal of the portion that has been subjected to the above-described variable level processing in the editing program based on the editing list in FIG. 5 is stored as a new file FN. At this time, the edit data processing unit 6 creates a new edit list including the new file FN and stores the new edit list in the edit list storage unit 7.

The following describes how to create an editing program based on the same editing list as in FIG. 5 and how to perform a level changing process on a desired portion in the editing program to create the new file FN. A specific example of the edit list including the new file FN will be described with reference to FIG. 5, FIG. 2, and FIG. FIG. 3A shows an example of a read file based on the edit list shown in FIG. 5, and FIG. 3B shows how a variable level process is performed on a desired portion in the edit program. 3 (c) shows a new file FN that has undergone level change processing, FIG. 3 (d) shows an example of a read file at the time of re-editing using the new file FN, and FIG. 3 (e). Shows an example of an editing program that is finally output as a reproduction signal.
Further, the example of FIG. 3 exemplifies the point P3 to P4 of the file F2 as the above-described desired part to be subjected to the variable level processing.

When the editing as shown in FIG. 3 is performed, the editing apparatus 10 according to the present embodiment first sets the file F1 as shown in FIG. 3A based on the editing list shown in FIG. And the video / audio data of points P3 to P4 and P5 to P6 of file F2 are read out, and an editing program connecting these files F1 and F2 is created as shown in FIG. 3B. .

Next, the editing device 10 executes the processing shown in FIG.
Is fed back to the level changing unit 8. At this time, the signal sent to the level variable unit 8 is a signal obtained by extracting the signal including the desired part (file F2) before and after in the editing program by the pre-roll and the post-roll, and the signal is supplied. The level varying unit 8 performs a level varying process on a portion corresponding to points P3 to P4 of the file F2 in the signal.

The signals at points P3 to P4 of the file F2 subjected to the level variable processing as described above are converted into a new file FN at points Pa to Pb as shown in FIG. The above file F2 in
Is stored in another area.

The edit list including the new file FN at this time is, as shown in FIG. 2 and FIG.
Point P of file F1 as a new editing program
This is a list for reading the data of points 1 to P2, points Pa to Pb of the new file FN, and points P5 to P6 of the file F2. The edit list of FIG. 2 is newly created by the edit data processing unit 6 and stored in, for example, an area different from the edit list of FIG. Note that the cut number in FIG. 2 corresponds to a scene number, and the edit point is an edit-in point in the file,
It indicates an out point.

Therefore, by performing the editing in accordance with the editing list of FIG. 2, the file storage unit 2 of the editing apparatus 10 stores the file F as shown in FIG.
1 points P1 and P2 and file F2 point P
The points Pa to Pb of the new file FN obtained by performing the variable level processing on 3 to P4 and the points P5 to P of the file F2
The new editing program connected to 6 is output as a reproduction signal.

As described above, according to the editing apparatus of the embodiment of the present invention, the editing program shown in FIG. 3B is fed back to the level variable section 8 to use the signal including before and after the desired portion. The variable file is subjected to the level variable processing, and the new file FA subjected to the level variable processing is stored in the file storage unit 2 so that the control data is created and saved prior to the execution of the special effect reproduction as in the above-described conventional example. , It is possible to generate an editing program with a special effect.

Further, for example, the same level variable processing (level variable processing is again performed on the file FN) is performed again on the editing program including the new file FN,
If the obtained signal is further stored in the file storage unit 2 as a new file FN 'and a new editing list is created, an editing program with duplicated special effects can be obtained. . Of course, it is also possible to repeat the processing of the overlapping special effects a plurality of times. It is also possible to change a part to which a special effect is applied to another part in the middle of the plurality of repetition processes.

In the above-described embodiment, the level change is taken as an example of the special effect. However, it goes without saying that the present invention can be applied to slow reproduction and other various processes.

[0040]

As described above, in the editing method and apparatus according to the present invention, a predetermined signal processing is performed on a signal of a desired portion in an editing program created according to an editing list, and the signal processing is performed. Is recorded on a disk-shaped recording medium as a new file and a new edit list including the new file is created, for example, to create control data prior to execution of special effect reproduction and Saving is unnecessary, and it is possible to apply special effects repeatedly.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram illustrating an overall configuration of an editing device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an edit list according to the embodiment of the present invention.

FIG. 3 is a diagram for explaining how to create an editing program with a special effect according to the embodiment of the present invention;

FIG. 4 is a block circuit diagram showing an overall configuration example of a conventional editing device.

FIG. 5 is a diagram showing an editing list in a conventional editing device.

FIG. 6 is a diagram for explaining a state of creating an editing program with a special effect in a conventional editing device.

[Explanation of symbols]

2 File storage unit, 4 Recording control unit, 5 Playback order control unit, 6 Edit data processing unit, 7 Edit list storage unit, 8 Level variable unit, 10 Editing device

Claims (10)

[Claims] 1. An editing method for editing a file recorded on a disk-shaped recording medium, wherein an editing program is created in accordance with an editing list, and a predetermined signal is applied to a signal of a desired portion in the created editing program. Processing, recording the signal of the desired portion subjected to the signal processing on the disc-shaped recording medium as a new file, creating a new edit list including the new file, and adding the new edit list to the created new edit list. An editing method characterized in that a new editing program is created in response. 2. The editing method according to claim 1, wherein when performing the predetermined signal processing, a signal including before and after the desired portion is extracted from an editing program created according to the editing list. . 3. A predetermined signal processing is performed on a signal of a desired portion in the created new editing program, and the signal of the desired portion subjected to the signal processing is used as a new file as the disk-shaped recording medium. A new editing list including the new file is created, and a series of processes for creating a new editing program according to the created new editing list is performed one or more times. The editing method according to item 1. 4. The editing method according to claim 3, wherein said desired portion in performing said series of processing can be changed. 5. The editing method according to claim 1, wherein said predetermined signal processing is a special effect processing. 6. A disc-shaped recording medium in which a plurality of files as editing materials are recorded, and a reproduction order for reproducing files from the disc-shaped recording medium in an order according to an edit list for creating an editing program. Control means; signal processing means for performing predetermined signal processing on a signal of a desired portion in the editing program reproduced in the order according to the edit list; An editing apparatus, comprising: recording means capable of recording a signal as a new file on the disc-shaped recording medium; and editing list creation means for creating a new editing list including the new file. 7. The method according to claim 6, wherein, when performing the predetermined signal processing, the reproduction order control unit extracts a signal including before and after the desired portion from an editing program.
Editing device as described. 8. A reproduction in an order according to an edit list by said reproduction order control means, a predetermined signal processing for a signal of a desired portion in an editing program by said signal processing means, and a disc-shaped processing by said recording means. 7. The editing according to claim 6, wherein a series of processes including recording a new file on a recording medium and creating a new edit list including the new file by the edit list creating unit is performed one or more times. apparatus. 9. The editing apparatus according to claim 8, wherein the desired portion in performing the series of processing can be changed. 10. The editing apparatus according to claim 6, wherein the predetermined signal processing in said signal processing means is a special effect processing.