JP2010219672A - Editing system, recording and reproducing device, and video material editing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an editing system, a recording and reproducing device, and a video material editing method which can shorten a lead time from recording of video material to an editing start. <P>SOLUTION: Recording of a video clip is artificially made to finish in a predetermined recording time. Because of this way, the video clip is made to be recorded in a recording medium 12 inside of the video recording and reproducing device 10 or in a removable recording medium 30 as a plurality of divided files. Therefore, the video recording and reproducing device 10 can notify the divided files already recorded in the video file under recording to an editing device 40 as an object for editing even when the notification comes to edit the video file under recording from the editing device 40. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an editing system for editing a video material recorded on a recording / playback device for multitask broadcasting by an editing device connected via a network, a recording / playback device used in the editing system, and a video material editing method.

  Currently, the broadcast program material editing method is a non-linear method in which recorded video material is recorded on a recording / playback device having a randomly accessible recording medium, and the recorded video material is edited using an editing program on the editing device. There is editing. Non-linear editing is a mainstream technology in television stations and the like because it is easy to repeatedly edit and rework, and can be reproduced immediately from an arbitrary position in the video material.

  However, in the conventional editing system, recording of the video material to the recording / playback device is completed, and the video material must be copied to the editing device before editing the video material, resulting in a large loss of time. It was. For this reason, there is a problem that it is difficult to deal with high-quality and immediacy in the workflow of programs such as news and sports that must convey information in real time.

  In addition, as a method of shortening the time to start editing processing, record regular video material and proxy material encoded at a low bit rate, and copy the proxy material to the editing device first after recording is completed. The method of doing is proposed (for example, refer patent document 1). However, even the method of Patent Document 1 cannot be edited until after the recording of the video material is completed.

JP 2008-153739 A

  As described above, in the conventional editing system, until the recording of the video material is completed and the video material is copied to the editing device, the editing of the video material cannot be started, resulting in a large loss of time.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an editing system, a recording / reproducing apparatus, and a video material editing method capable of shortening the lead time from the recording of the video material to the start of editing. .

  In order to achieve the above object, an editing system according to the present invention includes a recording / reproducing device that encodes an acquired video material into a video file of a prescribed format and records it on a randomly accessible recording medium, and a recording medium of the recording / reproducing device In an editing system comprising an editing device for editing a video file recorded in the video file, the recording / playback device pseudo-ends recording of the video file every time a preset requirement is satisfied, and the video file A recording control unit for recording on the recording medium in divided file units sequentially obtained by the end of the pseudo recording, and when the editing device is notified that the editing process for the video file being recorded is executed, Each time the recording of the divided file is completed, information on the recorded divided file in the video file is displayed. And a editing response unit to sequentially sent to the collecting device, wherein the editing apparatus is characterized by editing the prerecorded divided file in the video file in the recording based on the information about the delivery has been divided file.

  In addition, the recording / reproducing apparatus according to the present invention encodes the acquired video material into a video file of a specified format and records it on a randomly accessible recording medium. Recording of the video file is set in advance. A recording control unit is provided that records the video file on the recording medium in units of divided files sequentially obtained by the end of the pseudo recording when the requirement is satisfied.

  The video material editing method according to the present invention includes a recording / playback device that encodes the acquired video material into a video file of a specified format and records the video material in a randomly accessible recording medium, and the recording material of the recording / playback device. In a video material editing method used in an editing system comprising an editing device that edits a video file, the recording of the video file is pseudo-finished every time a preset requirement is satisfied, and the video file is When the editing device is notified to the recording / playback device that recording is performed on the recording medium in units of divided files that are sequentially obtained by the end of the pseudo recording and the editing process for the video file being recorded is executed, Information about the recorded divided files in the file is recorded each time recording of the divided files is completed. Sequentially sent from the raw device to the editing device, wherein the editing prerecorded divided files in the video file in the recording based on the information about the delivery has been divided file.

  With the editing system, recording / playback apparatus, and video material editing method configured as described above, video files can be recorded on the recording medium of the recording / playback apparatus in units of divided files. For this reason, the recording / playback device notifies the editing device of the recorded divided file in the video file being recorded even if the editing device notifies the editing of the video file being recorded. It becomes possible to do.

  According to the present invention, it is possible to provide an editing system, a recording / reproducing apparatus, and a video material editing method capable of shortening the lead time from the recording of the video material to the start of editing.

1 is an overview of a video recording / reproducing apparatus according to an embodiment of the present invention. It is a block diagram which shows the structure of the video recording / reproducing apparatus of FIG. It is a figure which shows a process management table during execution. It is a figure which shows an access restriction management table. It is a figure which shows a resource management table. It is a figure which shows a resource remaining amount management table. It is a figure which shows a priority management table. It is a figure which shows a user management table. It is a block diagram which shows the function structure of the control part of FIG. It is a schematic diagram which shows the data structure of a division | segmentation file. It is a schematic diagram which shows the recording structure of the removable recording medium of FIG. 2, or a built-in recording medium. It is a block diagram which shows the function structure of the editing apparatus of FIG. It is a figure which shows the flowchart at the time of the control part of FIG. 2 performing an execution control function and an interruption control function. The flowchart at the time of stopping the process in which the control part of FIG. 2 is performing is shown. FIG. 2 shows a sequence diagram when the editing apparatus of FIG. 1 performs video clip editing processing.

  Hereinafter, embodiments of an editing system, a multi-task broadcast recording / playback apparatus, and a video material editing method according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic view of a video recording / reproducing apparatus 10 according to an embodiment of the present invention. A video recording / playback apparatus 10 in FIG. 1 is connected to a camera 20, and video / audio information acquired by the camera 20 is taken into the video recording / playback apparatus 10. The captured video / audio information is recorded as a video clip in a removable recording medium 30 which is a removable medium inserted into the insertion slot 11 or a built-in recording medium 12 built in the apparatus main body.

  The video recording / reproducing apparatus 10 is connected to the editing apparatus 40 via a network line by a network interface (NW-I / F) 13. The editing apparatus 40 can use the removable recording medium 30 and the built-in recording medium 12 as a network drive via a network line by using a common / dedicated protocol common to the video recording / reproducing apparatus 10. Is possible.

  A display unit 14, a video operation unit 15, and a screen operation unit 16 are provided on the main body front panel of the video recording / reproducing apparatus 10.

  The display unit 14 is composed of, for example, an LCD (Liquid Crystal Display). The display unit 14 displays, for example, video captured by the camera 20 and video clips recorded on the removable recording medium 30 or the built-in recording medium 12.

  The video operation unit 15 includes various buttons and a dial. The user can input a playback request for a video clip recorded on the removable recording medium 30 or the internal recording medium 12 by operating these buttons and dial.

  The screen operation unit 16 includes various buttons. By operating these buttons, the user operates a recording request to record the video imaged by the camera 20 on the removable recording medium 30 or the internal recording medium 12, and a video clip recorded on the removable recording medium 30 or the internal recording medium 12. Playback request, copy request, transfer request, etc. can be input.

  FIG. 2 is a block diagram showing the configuration of the video recording / reproducing apparatus 10 according to one embodiment of the present invention. 2 includes a control unit 17, an encoding unit 19, a decoding unit 110, a built-in recording medium 12, a display unit 14, and a network interface 13. Each component is connected via a bus 111. Note that the bus 111 may be physically divided into video data and control data, but is shared here for simplicity.

  The encoding unit 19 generates a video file and an audio file by encoding the video / audio information acquired by the camera 20 in a preset format (for example, H.264). The video file and the audio file generated by the encoding unit 19 are recorded on the removable recording medium 30 or the built-in recording medium 12.

  For the removable recording medium 30 and the built-in recording medium 12, a randomly accessible nonvolatile semiconductor memory such as a flash memory is used. A flash memory is a rewritable nonvolatile semiconductor memory, and has an advantage of high-speed random access. Unlike a tape or optical disk drive, a flash memory is excellent in vibration resistance and the like because it does not have a mechanical moving part. The video file and the audio file are recorded on the removable recording medium 30 or the built-in recording medium 12 as one video clip. At this time, together with the video clip, the management information file of this video clip is also recorded on the removable recording medium 30 or the built-in recording medium 12. The management information file includes detailed information related to the video file and audio file constituting the video clip, the number of frames of the video clip, various auxiliary data related to the video clip, and the like.

  The decoding unit 110 decodes the file encoded by the encoding unit 19 and outputs the decoded file to the display unit 14 or an external monitor device. Also, the decoding unit 110 decodes the video clip recorded on the removable recording medium 30 or the built-in recording medium 12 and outputs it to the display unit 14 or an external monitor device.

  The control unit 17 includes a microcomputer provided with a CPU (Central Processing Unit), a memory 170, and the like. The memory 170 stores a management table used for each control by the control unit 17. In other words, the memory 170 includes an in-execution process management table T1 for managing the process being executed, an access restriction management table T2 for managing an access restriction to the video clip used in the process being executed, and a resource usage amount. The resource management table T3 for managing the resource usage for each process, the resource remaining amount management table T4 for managing the remaining amount of resources in the apparatus, and the priority of executable processes necessary for calculating A priority management table T5 and a user management table T6 for managing priorities of users connected to the video recording / reproducing apparatus 10 are stored. 3 to 8 are diagrams showing specific examples of management tables stored in the memory 170. FIG. 3 shows the ongoing process management table T1, FIG. 4 shows the access restriction management table T2, FIG. 5 shows the resource management table T3, FIG. 6 shows the remaining resource management table T4, and FIG. The management table T5 is shown, and FIG. 8 shows the user management table T6. In the management table T3 shown in FIG. 5, for the sake of simplification, the editing process from the editing device 40 always uses resources at the maximum (uses twice the bandwidth of normal playback).

  FIG. 9 is a block diagram illustrating a functional configuration of the control unit 17. The control unit 17 implements an execution control function 171, a recording control function 172, an editing response function 173, a playback control function 174, a restriction control function 175, and an interruption control function 176 by executing a predetermined program by a microcomputer.

  When an execution request for recording, playing, copying, and transferring a video clip is input from the screen operation unit 16, the execution control function 171 determines whether or not there is a remaining resource sufficient to execute the processing. When it is determined that it can be executed, the resource usage is allocated to execute the requested process, and the process is executed. In addition, the execution control function 171 determines whether or not there is a remaining resource sufficient to execute a response process for the editing process of the editing device 40 when the editing device 40 is notified that the editing process of the video clip is executed. This is a function for allocating a necessary resource usage and executing a response process to the editing process of the editing apparatus 40 when it is determined that the execution is possible. Specifically, when receiving a process execution request or a notification from the editing device 40, the control unit 17 refers to the management tables T1, T3, and T4 and compares the remaining resource amount with the resource usage of the requested process. Thus, it is determined whether or not there is a sufficient remaining resource for executing the requested process. If there is a sufficient remaining resource, the requested process is executed.

  The recording control function 172 is a function for recording the video / audio information acquired by the camera 20 as a video clip in the removable recording medium 30 or the built-in recording medium 12. Specifically, when a video / audio information recording request is input from the screen operation unit 16, the control unit 17 starts recording video / audio information. When recording a series of video clips, the control unit 17 ends the pseudo recording every time a predetermined requirement is satisfied, and the series of video clips are divided into video files and audio files (hereinafter referred to as divided files). To the removable recording medium 30 or the built-in recording medium 12.

  The preset requirement at this time includes a case where it is required that a predetermined number of divided files are recorded, and a case where a predetermined recording time is required. When it is required to record a divided file for a predetermined capacity, the control unit 17 ends the recording in a pseudo manner every time a divided file for the predetermined capacity is recorded. Further, when it is required that the preset recording time elapses, the control unit 17 ends the pseudo recording every time the recording time elapses. Thus, the video clip includes a plurality of divided files for a preset capacity set in advance or a plurality of divided files for a preset recording time. In the present embodiment, a case is described in which recording is ended in a pseudo manner every time a preset recording time elapses.

  A video clip management information file is created when the first split file is recorded, and then the contents are updated to include the newly recorded split file information each time the split file is recorded. . As a result, the management information file includes the information of the video clip within the recording completed range.

  FIG. 10 is a schematic diagram showing the data structure of the divided file. Here, an example in which video information is stored in a divided file will be described. The divided file includes a header part, a data part, and a footer part. The header part stores the start position of the data part and the footer part. The data portion stores video frame data for a preset time. The footer part stores index information indicating the position of the frame data in the data part.

  FIG. 11 is a schematic diagram showing a recording structure of the removable recording medium 30 or the built-in recording medium 12. Recording media are divided into hierarchies by directories called bins. The bin 1 stores management information files 1 to 3 for the video clips 1 to 3 and the video clips 1 to 3, respectively. The video clip 1 is composed of divided files 1 to 3, and the management information file 1 indicates that the video clip 1 is composed of divided files 1 to 3.

  The editing response function 173 is a function for executing a response process for the notification when the editing apparatus 40 is notified that the video clip editing process is to be executed. Specifically, when the control unit 17 receives a notification that the editing device 40 executes the editing process, the control unit 17 notifies the editing device 40 of the recording status and the like. When the control unit 17 requests the management information file of the video clip for executing the editing process from the editing device 40, the control unit 17 sends the management information file to the editing device 40.

  The playback control function 174 is a function of playing back a video clip recorded on the removable recording medium 30 or the built-in recording medium 12 when a video clip playback request is input from the screen operation unit 16. In addition, when a playback request is input during recording of a video clip, the control unit 17 sequentially plays back the divided files that have been recorded in the requested video clip.

  The restriction control function 175 is a function that restricts access to the video clip used in the process being executed. In order to execute this function, the control unit 17 writes the restriction information of the management table T2 stored in the memory 170 as auxiliary data in the management information file of the corresponding video clip, and sends the management information file to the editing device 40. To do. Then, when the editing device 40 reads auxiliary data from the management information file, access to the video clip being used by the editing device 40 is restricted. In the management table T2, any of “Media / Bin No./Clip No.” used in the execution process is set as a restriction target, and access such as “non-display” and “write prohibition” is made to this restriction target. Limits are set.

  The interruption control function 176 is a function for interrupting a process being executed when a new process is requested during execution of an arbitrary process, and a function for leaving information in a state where the interrupted process can be continued. Specifically, the control unit 17 refers to the management table T5 when another process is requested from the screen operation unit 16 during execution of one process and there is not enough remaining resources to execute this process. The priority of the process being executed is compared with the priority of the newly requested process. If the newly requested process has a higher priority than the process being executed, the progress of the process being executed is recorded in the removable recording medium 30 or the internal recording medium 12, and then the requested process is executed. To do. In addition, when another process is requested from the screen operation unit 16 during execution of a response process to the editing process of the editing apparatus 40 and there is no remaining resource to execute this process, the control unit 17 stores the management table T5. With reference, the priority of the response process is compared with the priority of the newly requested process. If the newly requested process is higher in the priority than the currently executed response process, a signal indicating that the response process is interrupted is sent to the editing apparatus 40, and then the requested process is executed. In addition, the control unit 17 receives a notification that the editing process is to be executed from another editing apparatus while the response process for the editing process of the editing apparatus 40 is being executed, and the remaining resource is sufficient to execute the response process for the other editing apparatus. When there is no amount, the management table T6 is referred to, and the priority of the editing device 40 is compared with the priority of another editing device. If the editing apparatus has a higher priority than the editing apparatus 40 that is responding, a signal indicating that the response process is interrupted is sent to the editing apparatus 40, and then an editing request from an editing apparatus with a higher priority is responded. .

  FIG. 12 is a block diagram showing a functional configuration of the editing apparatus 40 according to an embodiment of the present invention. 12 includes a display control unit 41, a built-in recording medium 42, an editing unit 43, a decoding unit 44, a display monitor 45, and a network interface 46. Each component is connected by a bus 47.

  When the user of the editing device 40 requests editing processing of a video clip, the display control unit 41 notifies the video recording / reproducing device 10 that the editing processing is to be executed via the network interface 46. When the display control unit 41 receives the recording status from the video recording / reproducing apparatus 10, the display control unit 41 displays the recording status on the display monitor 45. When a video clip to be edited is designated by the user based on the recording status or the like, the display control unit 41 requests the video recording / playback apparatus 10 for a management information file of the video clip. When the display control unit 41 receives the management information file sent from the video recording / reproducing apparatus 10 in response to this request, the display control unit 41 displays the index information of the divided files constituting the video clip based on the received management information file. Alternatively, it is read from the built-in recording medium 12. Then, the display control unit 41 reads the frame data of the divided file based on the read index information, causes the decoding unit 44 to decode the frame data, and causes the display monitor 45 to display the frame data.

  The user refers to the display on the display monitor 45 and performs editing processing such as setting of IN / OUT points and setting of fade processing by the editing unit 43. The editing unit 43 records the editing result of the editing process on the internal recording medium 42 as playlist information.

  Further, when receiving an instruction to interrupt the response process from the video recording / reproducing apparatus 10, the display control unit 41 records the progress of the editing process on the built-in recording medium 42, and interrupts the editing process being executed.

  In addition, when using the removable recording medium 30 or the built-in recording medium 12 in the video recording / reproducing apparatus 10 as a network drive, the display control unit 41 displays a list of video clips recorded on the removable recording medium 30 or the built-in recording medium 12. It can be displayed on the display monitor 45. However, the display content on the display monitor 45 is limited based on the management table T2.

  Next, the operation in the above configuration will be described in detail. FIG. 13 is a diagram illustrating a flowchart when the control unit 17 executes the execution control function 171 and the interruption control function 176.

  First, the control unit 17 receives a process execution request from the screen operation unit 16 or a notification to execute the editing process from the editing device 40 (step 13a). The control unit 17 refers to the management tables T1, T3, and T4 and compares the resource remaining amount with the resource usage amount of the requested process, so that there is a sufficient resource remaining amount to execute the requested process. It is determined whether or not there is (step 13b). When there is a sufficient remaining resource (Yes in Step 13b), the management tables T1, T2, and T4 are updated to reflect the newly started processing (Step 13c), and control is performed on the related components (Step 13d) Start processing. And the control part 17 returns the normal response to the effect that the process was normally performed with respect to the execution request (step 13e).

  If there is not enough resource remaining to execute the requested process (No in step 13b), the management table T5 is used to determine whether the priority of the requested process is higher than the priority of the process being executed. Judgment is made by reference (step 13f). If the priority of the requested process is lower than the priority during execution (No in Step 13f), an NG response indicating that the process cannot be executed is returned in response to the execution request (Step 13g). When the priority of the requested process is higher than the priority of the process being executed (Yes in step 13f), the process with a low priority so as to secure a sufficient remaining resource amount to execute the requested process Is interrupted (step 13h). Then, the control unit 17 records the progress status such as the stop position at the time of interruption to the removable recording medium 30 or the built-in recording medium 12, and sets a timer so that the interrupted processing is resumed after a predetermined time (step 13i). ). If the interrupted process is a response process to the editing apparatus 40, the control unit 17 causes the internal recording medium 42 to record the progress of the editing process at the time of the interruption.

  After step 13i, the control unit 17 updates the management tables T1, T2, and T4 to reflect newly started processing (step 13j), and shifts the processing to step 13d. When the timer expires and the interrupted process is resumed (step 13k), the control unit 17 shifts the process to step 13b. When a plurality of editing devices are connected to the video recording / playback device 10 and a notification that the editing process is to be executed can be received from an editing device other than the editing device 40, the management table T6 is placed before step 13f in FIG. By inserting a determination block relating to the priority of the editing device referring to the above, it is possible to deal with response processing to other editing devices.

  As a specific example, a case will be described in which the editing device 40 executes editing processing of a video clip recorded in the internal recording medium 12 in step 13a. Based on the management table T3 shown in FIG. 5 and the management table T4 shown in FIG. 6, the control unit 17 determines that the remaining amount of resources for executing the response process for the editing device 40 is sufficient (Yes in step 13b). ). When determining that the remaining amount of resources is sufficient, the control unit 17 updates the management tables T1, T2, and T4 (step 13c), starts response processing for the editing device 40 (step 13d), and returns a normal response (step 13c). Step 13e).

  Next, as a specific example, the case where reproduction of a video clip from the removable recording medium 30 is requested in step 13a will be described. Based on the management tables T1, T3, and T4, the control unit 17 determines that the remaining resource amount is insufficient to execute the video clip playback process (No in step 13b).

  Subsequently, the control unit 17 refers to the management table T1 shown in FIG. 3 and the management table T5 shown in FIG. 7, and confirms the priority of the playback processing of the video clip from the removable recording medium 30 (step 13f). ). Since the priority of the playback process of the video clip from the removable recording medium 30 is higher than the priority of the response process to the editing process of the video clip recorded on the removable recording medium 30 (Yes in Step 13f), the control unit 17 Then, the response process for the editing device 40 is interrupted (step 13h), and the progress status at the time of the interruption is recorded in the built-in recording medium 42 (step 13i). Then, the control unit 17 updates the management tables T1, T2, and T4 (step 13j), starts playback of the video clip from the removable recording medium 30 (step 13d), and returns a normal response (step 13e).

  FIG. 14 shows a flowchart when the control unit 17 stops the process being executed.

  First, the control unit 17 receives a processing stop request from the screen operation unit 16 or the editing device 40 (step 14a). The control part 17 performs control with respect to a related component, and stops the process in execution (step 14b). Then, the control unit 17 updates the management tables T1, T2, and T4 (step 14c), returns a normal response indicating that the process being executed normally is stopped in response to the stop request (step 14d), and ends the process. To do.

  FIG. 15 shows a sequence diagram when the editing apparatus 40 performs video clip editing processing. Note that instructions are exchanged between the video recording / reproducing apparatus 10 and the editing apparatus 40 using preset instruction commands.

  First, the editing device 40 notifies the video recording / playback device 10 that video clip editing processing is to be executed. Note that the notification may be regarded as being triggered by the establishment of a connection between the video recording / reproducing apparatus 10 and the editing apparatus 40 as a trigger.

  Upon receiving the notification, the video recording / playback apparatus 10 receives the video clip No. currently recorded. And the recorded time and the like are returned to the editing device 40. Based on the notification from the video recording / reproducing apparatus 10, the editing apparatus 40 requests the video recording / reproducing apparatus 10 for a management information file of a video clip desired to be edited. The video recording / reproducing apparatus 10 sends the management information file to the editing apparatus 40 in response to this request. The editing device 40 refers to this management information file and reads index information of all the divided files included in the video clip desired to be edited from the internal recording medium 12. Then, the editing device 40 edits the video clip recorded on the internal recording medium 12 based on the index information. When the editing is completed, the editing device 40 records the playlist information on the internal recording medium 42.

  Next, the exchange between the video recording / playback device 10 and the editing device 40 when the editing device 40 edits the video clip being recorded is shown in FIG. 10 and FIG. 11 and the sequence diagram shown in FIG. Will be described with reference to FIG. Here, the divided file 2 of the video clip 1 is being recorded, and the next divided file is recorded every 5 minutes.

  When the video recording / playback apparatus 10 receives notification from the editing apparatus 40 that the video clip editing process is to be executed, the video recording / playback apparatus 10 notifies that the video clip 1 is being recorded and that the recorded time is 5 minutes. Upon receiving this notification, the editing device 40 requests the management information file 1 of the video clip 1. The video recording / reproducing apparatus 10 sends the management information file 1 to the editing apparatus 40 in response to this request. Here, since the recording of the video clip 1 has been completed up to the divided file 1, the management information file 1 includes information on the divided file 1.

  The editing device 40 reads the index information of the divided file 1 from the internal recording medium 12 with reference to the management information file 1 and edits the divided file 1 based on this index information.

  When the recording time of 10 minutes elapses and the recording of the divided file 2 is completed, the video recording / reproducing apparatus 10 updates the management information file 1 to include the information of the divided file 2 in its contents, and the recording of the divided file 2 is completed. The editing device 40 is notified of the completion. Upon receiving this notification, the editing device 40 requests the management information file 1 again. The video recording / reproducing apparatus 10 sends the management information file 1 to the editing apparatus 40 in response to this request. The editing device 40 edits the divided file 2 based on the index information of the divided file 2 read with reference to the management information file 1.

  When the recording time of 15 minutes elapses and the recording of the divided file 3 is completed, the video recording / reproducing apparatus 10 updates the management information file 1 to include the information of the divided file 3 in its contents, and records the divided file 3 Is notified to the editing apparatus 40. Then, the video recording / reproducing apparatus 10 and the editing apparatus 40 repeat the above-described processing to edit the divided file 3 recorded in the internal recording medium 12. As a result, the video clip 1 being recorded is edited.

  Next, access restrictions on video clips and display restrictions on video clips by the restriction control function 175 will be described in detail with reference to the management table T2 shown in FIG.

  In the management table T2 shown in FIG. 4, when a video clip is being recorded on the built-in recording medium 12, “Media / Bin No.” is “write prohibited”. As a result, during the recording of the video clip, the writing operation cannot be performed on the bin in which the video clip is recorded. Further, when the video clip recorded on the removable recording medium 30 is edited by the editing device 40, “Media / Bin No./Clip No.” is “write prohibited”. As a result, the writing operation cannot be performed on the video clip being edited. Similarly, when a video clip recorded on the removable recording medium 30 is edited by the editing device 40, “Media / Bin No./Clip No.” is “non-display”. Thus, the display monitor 45 does not display the video clip being edited.

  The control unit 17 performs the following processing in order to realize the restriction control function 175 described above. When setting the restriction target to “write prohibited”, the control unit writes the fact as auxiliary data in the management information file, and sends the management information file to the editing apparatus 40. The editing device 40 refers to the auxiliary data in the management information file to determine that the restriction target is “write prohibited”. Further, when the control target is set to “non-display”, the control unit 17 sends the control target to the editing apparatus 40 without including the restriction target in the management information file. The user of the editing device 40 cannot access objects that are not included in the management information file because they are not displayed on the display monitor 45.

  As described above, in the above-described embodiment, the recording of the video clip is ended in a pseudo manner every preset time, and the recording is performed so that one video clip includes a plurality of divided files. When the editing apparatus 40 notifies that the video clip editing process is to be executed, editing is performed in units of divided files. Thereby, even when the editing device 40 selects a video clip being recorded, the video recording / playback device 10 can edit a divided file of which recording has been completed among the video clips being recorded. In other words, when editing the video clip, the editing device 40 can start the editing process without waiting for the recording of the video clip to be completed.

  In the above-described embodiment, when there is a reproduction request for a video clip being recorded, divided files that have been recorded among the video clips being recorded are sequentially reproduced. As a result, the video recording / playback apparatus 10 can start the playback process without waiting for all the video clips to be recorded.

  In the above embodiment, the management tables T1 to T6 are provided, and the resource usage of the requested process is compared with the current resource remaining amount, and a plurality of processes are performed in parallel as long as the resource remaining amount is sufficient. I am trying to do it. Thereby, the video recording / reproducing apparatus 10 can perform multitask processing.

  In the above-described embodiment, when a predetermined process is being executed, a process with a higher priority than that of the process being executed is requested, and there is no remaining resource to execute the process. The process is interrupted, and the process with the higher priority is executed. Further, when executing a response process for the editing process of the editing apparatus 40, there is a notification that the editing process is executed from an editing apparatus having a higher priority than the editing apparatus 40, and the response process is newly executed. When there is not enough resource remaining, the editing process by the editing apparatus 40 is interrupted, and a response process for the editing apparatus with a high priority is executed. Thereby, the video recording / reproducing apparatus 10 can perform multitask processing more efficiently according to the priority order.

  In the above-described embodiment, when a new process is requested and the process being executed is interrupted, the progress status of the interrupted process is saved. Thereby, when resuming the interrupted process, the process can be continuously executed from the interruption position.

  In the above-described embodiment, a predetermined access restriction is set for any of media, bins, and video clips used in the process being executed by the management table T2. As a result, the video recording / reproducing apparatus 10 can prevent the material used in the processing being executed on the video recording / reproducing apparatus 10 side from being erased due to inadvertent access from the editing apparatus 40. It is. In addition, since it is possible to hide other than accessible ones, it is possible to quickly and accurately select an accessible clip.

  Therefore, the editing system and the video recording / reproducing apparatus 10 according to the present invention can shorten the lead time from the recording of video / audio information to the start of editing.

  The present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, an example in which the editing apparatus 40 is connected via the network interface 13 has been described. However, the network interface need not be limited to one. That is, the video recording / reproducing apparatus 10 includes a plurality of network interfaces, and can be similarly implemented even when connected to a plurality of editing apparatuses via the network interfaces.

  In the above-described embodiment, the example in which the editing device 40 edits the divided files recorded at preset recording times has been described. However, the editing device 40 edits the preset files of a predetermined capacity. It does not matter even if it is a case. At this time, if the video recording / playback apparatus 10 is notified by the editing apparatus 40 that the editing process of the video clip being recorded is to be executed, the video clip No. being recorded is recorded. In addition, the recorded capacity is returned to the editing device 40. In addition, when the recording capacity exceeds the predetermined capacity, the video recording / reproducing apparatus 10 ends the recording of the divided file in a pseudo manner and starts recording the next divided file. When the recording of the divided file is completed, the video recording / reproducing apparatus 10 updates the management information file to include the information of the divided file that has been recorded, and notifies the editing apparatus 40 that the recording of the divided file has been completed. As a result, even when the divided file is recorded in units of a predetermined capacity, the editing device 40 executes the editing process of the video clip being recorded in the same manner as when the divided file is recorded in a predetermined recording time unit. It is possible.

  In the above embodiment, the editing apparatus 40 reads and edits the divided file recorded on the removable recording medium 30 or the internal recording medium 12, and records the playlist information as the editing result on the internal recording medium 12. However, the present invention can be similarly applied even when the editing device 40 edits the divided file after copying the divided file to the internal recording medium 12.

  Further, in the above embodiment, due to the remaining amount of resources, editing of the clip being recorded cannot be performed during recording on the removable recording medium 30, but this depends on the resource amount of the apparatus. Is. By increasing the resource amount of the apparatus, it is possible to follow up and edit the removable recording medium 30 as well.

  In the above-described embodiment, the video recording / playback apparatus 10 has been described with respect to an example in which video / audio information is converted into a video file and an audio file. However, only video information can be obtained by the camera 20 and converted into a video file. Even in the case of recording on a recording medium, the same can be implemented.

  In the above embodiment, the video recording / playback apparatus 10 has been described with respect to the example in which the video / audio information is encoded by the encoding unit 19 to generate a high-definition video file and audio file. In addition, it is possible to generate a simple video file (hereinafter referred to as a proxy image file) having a lower bit rate than these files. At this time, the video recording / reproducing apparatus 10 converts the acquired video / audio information into MPEG. 4 includes an encoding unit 19-2 that generates a proxy image file by encoding with 4 or the like. The encoding unit 19-2 generates a proxy image file in parallel with the divided file generated by the encoding unit 19. The generated proxy image file is recorded on the removable recording medium 30 or the built-in recording medium 12 together with the above-described high-definition file. When the video recording / playback apparatus 10 receives a notification from the editing apparatus 40 that the video clip editing process is to be executed, the video recording / playback apparatus 10 sends the proxy image file together with the video clip management information file to the editing apparatus 40.

  In the above-described embodiment, the editing apparatus 40 has been described based on the received management information file. However, the editing apparatus 40 edits the video clip recorded on the internal recording medium 12. However, the present invention is not limited to this method. Absent. In other words, the editing apparatus 40 records the received proxy image file on the built-in recording medium 42, and can be similarly implemented even when editing processing is performed on the proxy image file recorded on the built-in recording medium 42. is there. At this time, the proxy image file subjected to the editing process is recorded on the built-in recording medium 42.

  In the above-described embodiment, the case where the divided file is recorded every time the recording time of the video clip passes 5 minutes has been described. However, the recording time is not limited to 5 minutes. Can be similarly implemented.

  Furthermore, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

DESCRIPTION OF SYMBOLS 10 ... Video recording / reproducing apparatus 11 ... Insert port 12 ... Built-in recording medium 13 ... NW I / F
14 ... Display unit 15 ... Video operation unit 16 ... Screen operation unit 17 ... Control unit 170 ... Memory 171 ... Execution control function 172 ... Recording control function 173 ... Edit response function 174 ... Playback control function 175 ... Restriction control function 176 ... Interruption control Function 19: Encoding unit 110 ... Decoding unit 111 ... Bus 20 ... Camera 30 ... Removable recording medium 40 ... Editing device 41 ... Display control unit 42 ... Built-in recording medium 43 ... Editing unit 44 ... Decoding unit 45 ... Decoding unit 45 ... Display monitor 46 ... NW I / F
47 ... Bus

Claims (35)

A recording / reproducing apparatus that encodes the acquired video material into a video file of a prescribed format and records it on a randomly accessible recording medium; and an editing apparatus that edits the video file recorded on the recording medium of the recording / reproducing apparatus. In the editing system,
The recording / reproducing apparatus comprises:
A recording control unit that quasi-ends recording of the video file every time a preset requirement is satisfied, and records the video file on the recording medium in units of divided files obtained sequentially by the end of the pseudo-recording When,
When the editing device notifies that the editing process for the video file being recorded is to be executed, information on the recorded divided files in the video file is sequentially sent to the editing device every time the recording of the divided files is completed. An edit response section to send out,
The editing system, wherein the editing device edits a recorded divided file in the video file being recorded based on the transmitted information on the divided file. The editing system according to claim 1, wherein the recording control unit quasi-ends recording of the video file every time a predetermined time set in advance elapses. 2. The editing system according to claim 1, wherein the recording control unit quasi-ends the recording of the video file every time the divided file having a preset capacity is recorded. The recording / reproducing apparatus comprises:
When any one of the plurality of execution processes is newly requested during execution of any one of the plurality of execution processes including the recording process of the video file and the response process to the editing process in the editing device, When the remaining amount and the resource usage of the newly requested execution process are compared, and there is a sufficient resource remaining to execute the newly requested execution process, the newly requested execution process The editing system according to claim 1, further comprising: an execution control unit that executes. The recording / reproducing apparatus comprises:
When there is no sufficient remaining resource for managing the priority of the plurality of execution processes and executing the newly requested execution process, the newly requested execution process among the execution processes being executed The editing system according to claim 4, further comprising an interruption control unit that interrupts an execution process having a lower priority than the execution process and executes the newly requested execution process. 6. The interruption control unit, when interrupting the execution process being executed, issues an instruction to the recording medium or the editing device so as to hold a state at the time of interruption of the execution process. Editing system. The recording / reproducing apparatus comprises:
2. The editing system according to claim 1, further comprising a playback control unit that plays back a recorded divided file in the video file when a playback request for the video file being recorded is input. The recording / reproducing apparatus comprises:
During execution of any of a plurality of execution processes including a recording process of the video file, a response process to the editing process in the editing device, and the reproduction process of the video file, any one of the plurality of execution processes When newly requested, the resource remaining amount is compared with the resource usage of the newly requested execution process, and when there is a sufficient resource remaining amount to execute the newly requested execution process, The editing system according to claim 7, further comprising an execution control unit that executes the newly requested execution process. The recording / reproducing apparatus comprises:
When there is no sufficient remaining resource for managing the priority of the plurality of execution processes and executing the newly requested execution process, the newly requested execution process among the execution processes being executed The editing system according to claim 8, further comprising an interruption control unit that interrupts an execution process having a lower priority than the execution process and executes the newly requested execution process. 10. The interruption control unit issues an instruction to the recording medium or the editing device to hold a state at the time of interruption of the execution process when the execution process being executed is interrupted. Editing system. 2. The editing apparatus according to claim 1, wherein the editing device edits the recorded divided file read from the recording medium based on information on the divided file, and holds an editing result of the editing as playlist information. Editing system. The recording / reproducing apparatus further includes an encoder that encodes the acquired video material into a proxy image file having a lower capacity than the divided file,
The recording control unit sequentially records the proxy image file together with the divided file on the recording medium,
The editing response unit sends the proxy image file of the recorded divided file to the editing device together with information on the recorded divided file.
2. The editing system according to claim 1, wherein the editing device edits the proxy image file of the divided file based on information on the divided file, and holds the edited proxy image file. When there are a plurality of the editing devices,
The recording / reproducing apparatus comprises:
During execution of response processing for one of the plurality of editing devices, if another editing device notifies that editing processing is to be executed, the remaining resource amount and response processing for the other editing device An execution control unit that executes a response process for the other editing device when there is a sufficient remaining resource to compare a resource usage amount and execute a response process for the other editing device;
If there is not enough remaining resources to manage the priority of the plurality of editing devices and execute response processing for the other editing devices, response processing for the editing devices with lower priority than the other editing devices The editing system according to claim 1, further comprising: an interruption control unit that interrupts and executes response processing for the other editing apparatus. 14. The editing system according to claim 13, wherein, when the response process being executed is interrupted, the interruption control unit issues an instruction to the editing apparatus to maintain an editing state at the time of interruption in the editing apparatus. . The recording / reproducing apparatus comprises:
The editing system according to claim 1, further comprising: a restriction control unit that restricts access to a video file used in an execution process being executed among the video files recorded on the recording medium. 16. The restriction control unit is configured to hide a video file used in an execution process being executed from the video files recorded on the recording medium from the editing apparatus. Editing system. In a video recording and playback device that encodes the acquired video material into a video file of a prescribed format and records it on a randomly accessible recording medium,
A recording control unit that quasi-ends recording of the video file every time a preset requirement is satisfied, and records the video file on the recording medium in units of divided files obtained sequentially by the end of the pseudo-recording A recording / reproducing apparatus comprising: 18. The recording / reproducing apparatus according to claim 17, wherein the recording control unit pseudo-ends recording of the video file every time a predetermined time set in advance elapses. 18. The recording / reproducing apparatus according to claim 17, wherein the recording control unit quasi-terminates recording of the video file every time the divided file having a preset capacity is recorded. An interface unit connected via a network line to an editing device for editing a video file recorded in the recording medium;
When the editing device notifies that the editing process for the video file being recorded is to be executed, information on the recorded divided files in the video file is sequentially sent to the editing device every time the recording of the divided files is completed. 18. The recording / reproducing apparatus according to claim 17, further comprising an edit response unit for sending out. When any one of the plurality of execution processes is newly requested during execution of any one of the plurality of execution processes including the recording process of the video file and the response process to the editing process in the editing device, When the remaining amount and the resource usage of the newly requested execution process are compared, and there is a sufficient resource remaining to execute the newly requested execution process, the newly requested execution process 21. The recording / reproducing apparatus according to claim 20, further comprising an execution control unit for executing When there is no sufficient remaining resource for managing the priority of the plurality of execution processes and executing the newly requested execution process, the newly requested execution process among the execution processes being executed The recording / reproducing apparatus according to claim 21, further comprising an interruption control unit that interrupts an execution process having a lower priority than the execution process and executes the newly requested execution process. 23. The interruption control unit, when interrupting the execution process being executed, issues an instruction to the recording medium or the editing device so as to hold a state at the time of interruption of the execution process. Recording and playback device. An encoder for encoding the acquired video material into a proxy image file having a lower capacity than the divided file;
The recording control unit sequentially records the proxy image file together with the divided file on the recording medium,
21. The recording / reproducing apparatus according to claim 20, wherein the editing response unit sends a proxy image file of the recorded divided file together with information on the recorded divided file to the editing apparatus. When a plurality of the editing devices are connected to the interface unit,
During execution of response processing for one of the plurality of editing devices, if another editing device notifies that editing processing is to be executed, the remaining resource amount and response processing for the other editing device An execution control unit that executes a response process for the other editing device when there is a sufficient remaining resource to compare a resource usage amount and execute a response process for the other editing device;
If there is not enough remaining resources to manage the priority of the plurality of editing devices and execute response processing for the other editing devices, response processing for the editing devices with lower priority than the other editing devices 21. The recording / reproducing apparatus according to claim 20, further comprising: an interruption control unit that interrupts and executes response processing for the other editing apparatus. 26. The recording / reproducing according to claim 25, wherein, when the response process being executed is interrupted, the interruption control unit issues an instruction to the editing apparatus to maintain an editing state at the time of interruption in the editing apparatus. apparatus. 18. The recording / reproducing apparatus according to claim 17, further comprising a reproduction control unit that reproduces a recorded divided file in the video file when a reproduction request for the video file being recorded is input. During execution of any of a plurality of execution processes including a recording process of the video file, a response process to the editing process in the editing device, and the reproduction process of the video file, any one of the plurality of execution processes When newly requested, the resource remaining amount is compared with the resource usage of the newly requested execution process, and when there is a sufficient resource remaining amount to execute the newly requested execution process, 28. The recording / reproducing apparatus according to claim 27, further comprising an execution control unit that executes the newly requested execution process. When there is no sufficient remaining resource for managing the priority of the plurality of execution processes and executing the newly requested execution process, the newly requested execution process among the execution processes being executed 29. The recording / reproducing apparatus according to claim 28, further comprising an interruption control unit that interrupts an execution process having a lower priority than the execution process and executes the newly requested execution process. 30. The recording / reproducing apparatus according to claim 29, wherein when the execution process being executed is interrupted, the interruption control unit issues an instruction to the recording medium so as to maintain a state at the time of interruption of the execution process. . 18. The recording / reproducing apparatus according to claim 17, further comprising a restriction control unit for restricting access to a video file used in an execution process being executed among the video files recorded on the recording medium. Of the video files recorded in the recording medium, further comprising a restriction control unit for restricting access to the video file used in the execution process being executed,
21. The restriction control unit is configured to hide a video file used in an execution process being executed from the video files recorded on the recording medium from the editing apparatus. Recording and playback device. A recording / reproducing apparatus that encodes the acquired video material into a video file of a prescribed format and records it on a randomly accessible recording medium; and an editing apparatus that edits the video file recorded on the recording medium of the recording / reproducing apparatus. In the video material editing method used in the editing system,
The video file recording is ended in a pseudo manner every time a preset requirement is satisfied, and the video file is recorded in the recording medium in units of divided files obtained sequentially by the end of the pseudo recording,
When the editing device notifies the recording / playback device that the editing process for the video file being recorded is to be executed, information on the recorded divided file in the video file is recorded each time recording of the divided file is completed. Sequentially sent from the recording and playback device to the editing device,
A video material editing method, wherein a recorded divided file in the video file being recorded is edited based on the transmitted information about the divided file. 34. The video material editing method according to claim 33, wherein the pseudo-termination of the recording is performed each time a predetermined time set in advance elapses. 34. The video material editing method according to claim 33, wherein the pseudo end of recording is performed each time the divided file having a preset capacity is recorded.

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