JPH0668653A - Editing controller - Google Patents

Abstract

PURPOSE:To edit with high accuracy even between optional videos by previously collecting condition transit time information in a reproducing video and a recording video, and editing and controlling by shifting timing by a transit time difference between respective videos. CONSTITUTION:When the reproducing video 1, the recording video 2 stand by at respective editing start points in static states also, by an editing controller 3, a preroll instruction is issued to respective videos with a D2B control means 10. Respective videos 1, 2 are preroll operated by a prescribed amt. respectively. In the state of that the preroll is ended, e.g. the video 1 is defined to reproduce at the editing start point normally after 5 seconds from start of reproduction, and the video 2 is defined to record normally at the editing start point after 3 seconds. By the editing controller 3, when recording is instructed to the video 2 after 2 seconds when reproduction is instructed to the video 1 through the D2B control means 10, the content of the editing start point of the video 1 is correctly recorded from the editing start point of the video 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to editing control between video devices.

[0002]

2. Description of the Related Art Conventionally, when two video devices for reproduction and recording are connected and the content of one reproduction video is recorded in the recording video, the reproduction video is in a still image state,
The recording video is made to stand by at each editing start point in the recording standby state or the still image state, and the contents from the editing start point of the playback video are recorded normally from the editing start point of the recording video. The control device issues an editing start command to each video at an appropriate timing.

A conventional edit control device will be described below. FIG. 2 is a block diagram showing the configuration of a conventional editing device. In FIG. 2, the video signal and audio signal output of the playback video 1 are connected to the video signal and audio signal input of the recording video 2 via the AV cable 5, and this signal is selected as the input of the recording video. There is. In this state, the reproduction content of the reproduction video can be recorded in the recording video. A control line 4 is connected to the reproduction video 1 and the recording video 2 from the edit control device 3, and the edit control device can control the reproduction video and the recording video through the control line 4.

FIG. 3 is a diagram showing the control timing for each video from the editing control device when each device is connected with the above-mentioned configuration. Hereinafter, the control timing of the conventional editing control device will be described with reference to FIG.

First, the playback video and the recording video are brought into the still picture state at the respective edit start points. The editing control device gives a pre-roll instruction to each video when editing is started. Each video performs the same amount of preroll in the front direction from the editing start point and waits. The editing controller
At the time when the preroll of each video ends, a playback start instruction is given to the playback video, and recording is started to the recording video. Since the playback video and the recording video both perform the same amount of pre-roll, the playback video plays the editing start point at the same time, and the recording video records the editing start point. From the start point, the content of the edit start point of the playback video is recorded.

[0006]

However, in the above-mentioned conventional configuration, the delay time of the state transition of the playback video and the recording video differs between the playback video and the recording video, and the same playback video and recording video are used. Even in video
Generally, different models are different, and even if pre-rolled by the same predetermined amount and played back and recorded at the same time, they do not necessarily pass through each editing start point at the same time, and as a result, the editing accuracy is There is a problem of deterioration due to variations. Further, if the transition time of both the playback video and the recording video is specially adjusted so as to solve the above problem, the editing accuracy can be improved, but in this case, the playback video and the recording video are recorded. This means that high-precision editing can be expected only with this special combination of video for use, and this is not the case when editing the video for playback and the video for recording with any combination.

The present invention solves the above-mentioned conventional problems, and is an edit control which is a combination of an arbitrary reproducing video and recording video, and which enables accurate editing even if the transition times of the respective videos are different. The purpose is to provide a device.

[0008]

In order to achieve this object, the edit control device of the present invention comprises D2B control means and timing control means. Further, each video is composed of transition time information holding means and D2B control means, and each D
The 2B control means is connected by a D2B cable and is controlled by the editing control device by the D2B.

[0009]

According to the present invention, with the above-described structure, the D2B control means of the editing control apparatus can perform the state transition held by the transition time information holding means of each video through the D2B control means of each video via the D2B cable. Gather information about delay time. The timing control means of the editing control device calculates the time difference between both videos based on this information, and controls so that the content of the editing start point of the playback video is correctly recorded from the editing start point of the recording video. The timing is adjusted and each video is controlled through the D2B control means to perform high precision editing.

[0010]

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

FIG. 1 is a block diagram of an editing control apparatus according to an embodiment of the present invention. In FIG. 1, the edit control device 3 is D2B.
It is composed of a control means 10 and a timing control means 20. The playback video 1 and the recording video 2 have a D2B control means 10 and a transition time information holding means 30 holding a state transition time. The respective D2B control means 10 are connected by a D2B cable 40. Also,
The video signal and audio signal output of the reproducing video 1 is connected to the video signal and audio signal input of the recording video 2 via the AV cable 5, and this signal is selected as the input of the recording video. In this state, the reproduction content of the reproduction video can be recorded in the recording video.

The operation of the edit control apparatus of this embodiment having the above-described structure will be described below.

In FIG. 1, the D2B control means 10 of the editing control device 3 causes the D2B control means 10 of the playback video 1 to be reproduced.
On the other hand, ask about the time from the start of playback from the pre-roll completed state to the normal playback of the editing start point. Playback video 1
The D2B control means 10 notifies the relevant information held in the transition time information holding means 30 to the D2B control means 10 of the edit control device 3. Similarly, the editing control device 3 is D2B.
The control unit 10 asks the D2B control unit 10 of the recording video 2 about the time from the start of recording from the preroll completion state to the normal recording of the editing start point. The D2B control means 10 of the recording video 2 uses the transition time information holding means 3
The corresponding information held in 0 is set to D2B of the editing control device 3.
Notify the control means 10. Here, for example, it is assumed that the answer from the playback video 1 is 5 seconds and the answer from the recording video 2 is 3 seconds.

FIG. 4 is a diagram showing the control timing of the editing control apparatus in the embodiment of the present invention. At each editing start point in FIG. 4, when the playback video 1 and the recording video 2 are both waiting in a still image state, the editing control device 3
The 2B control means 10 issues a pre-roll instruction to each video. Each video is prerolled by a predetermined amount. In this case, each preroll amount does not need to be the same. With the preroll completed, the playback video 1 normally plays the editing start point 5 seconds after the playback starts, and the recording video 2 normally plays the editing start point 3 seconds after the recording starts. Since the recording is performed, the editing control device 3 instructs the recording video 2 to record 2 seconds after the reproduction video 1 is instructed to be reproduced through the D2B control means 10, and then the recording video 2 is edited. From the point, the content of the editing start point of the playback video is correctly recorded.

FIG. 5 is a diagram showing a flowchart of this processing procedure. Editing control device 3 in step 500 of FIG.
Collects a predetermined state transition time for each video. Further, the edit control device 3 calculates the difference between the state transition times in step 501. In step 502, a pre-roll instruction is issued to each video, and after each video completes the pre-roll operation, a reproduction instruction is issued to the playback video 1 in step 503. After that, in step 504, the time difference of the state transition time is waited, and in step 505, a recording instruction is issued to the recording video 2.

As described above, according to this embodiment, the edit control device collects the state transition time information of the playback video and the recording video in advance, and shifts the timing by the transition time difference of each video to perform the edit control. By doing
It is possible to perform accurate editing in which the content of the editing start point of the playback video is recorded correctly from the editing start point of the recording video. Furthermore, since the editing control device adjusts the editing timing by adjusting it to the state transition time unique to each video,
There is no need to consider transition time adjustment in the design of each video, and high-precision editing can be provided between arbitrary videos.

In the present embodiment, the state transition time that the editing control device listens to each video is set to the time to reproduce or record the editing start point from the completion of the preroll. However, the still image state or the recording standby state is set at the editing start point. It may be time to reproduce or record the edit start point through the pre-roll operation from the standby state. In this case, there is an effect that the control procedure from the edit control device becomes simple and the design of the edit control device becomes simple.

Further, in this embodiment, the editing control device is a device different from the playback video and the recording video, but the editing control device may be incorporated in the playback video.

In general, the editing operation is performed by recording and editing one recording video by using a plurality of reproducing devices as sources.
When a plurality of videos among the videos connected to 2B are in the still picture state, it is impossible to distinguish from which still picture state the editing control apparatus edits. Therefore, it is necessary to notify the editing control device of the video to be controlled.

However, when the playback control video has an edit control device built therein, the edit control device only needs to select its own video in the still image state as a source, and therefore the time and effort for notifying the control target can be saved. Since the notifying means is unnecessary, it has an effect of a simple and inexpensive structure.

Further, an editing control device may be incorporated in the recording video. In this case, when two videos are connected to the D2B, there is an effect that a new editing control device need not be connected and a simple editing system configuration can be provided.

[0022]

As described above, according to the present invention, the editing control apparatus collects the state transition times of the playback video and the recording video through the D2B control means, and controls each video by timing according to the time difference. With this, it is possible to perform an accurate editing in which the content of the editing start point of the playback video is recorded correctly from the editing start point of the recording video, with any combination of videos.

[Brief description of drawings]

FIG. 1 is a block diagram of an editing control device of the present invention.

FIG. 2 is a configuration diagram showing a configuration of a conventional editing device.

FIG. 3 is a diagram showing a control timing of a conventional editing control device.

FIG. 4 is a diagram showing the control timing of the editing control apparatus of the present invention.

FIG. 5 is a diagram showing a flow chart of control of the editing control apparatus of the present invention.

[Explanation of symbols]

 1 Video for reproduction 2 Video for recording 3 Editing control device 10 D2B control means 20 Timing control means 30 Transition time information holding means 40 D2B cable

Claims (5)

[Claims] 1. A D2B control means and a timing control means capable of controlling a reproduction video and a recording video, which are provided with a D2B control means and have a transition time information holding means for holding a state transition time. Edit control device. 2. The edit control device according to claim 1, wherein the transition time information holding means holds a time from the preroll completion state to the normal reproduction or recording of the edit start point. 3. The time from the state of waiting in the still image state or the recording standby state at the editing start point to the normal reproduction or recording of the editing start point through the pre-roll operation in the transition time information holding means. The edit control device according to claim 1, wherein the edit control device is held. 4. The edit control device according to claim 1, wherein the edit control device is incorporated in a playback video. 5. The edit control device according to claim 1, wherein the edit control device is incorporated in a recording video.