JP2024039341A - Video recording device, video recording device control method, and program - Google Patents

Abstract

An object of the present invention is to prevent metadata included in an additional information file of a video from being updated illegally.
A video recording device includes a receiving unit that receives an input information file including additional information added to a video, a first acquisition unit that acquires first additional information from the input information file, and a recording device for recording the video. a second acquisition unit that acquires second additional information that is information determined when the video starts; and a generation unit that generates an additional information file to be associated with the video based on the first additional information and the second additional information. means, a recording means for recording the additional information file in association with the moving image in a storage unit, storing a new input information file received during recording of the moving image in the storage unit; and control means for controlling the additional information file not to be updated.
[Selection diagram] Figure 6

Description

The present invention relates to a video recording device, a method of controlling the video recording device, and a program.

In recent years, with the rise of SNS (Social Networking Services), news sites such as broadcasting stations and news agencies are required to convey accurate information more quickly. Video processing devices such as digital still cameras and digital video cameras can record not only video files but also additional information files containing various additional information (metadata) about the video. By utilizing additional information files, it becomes possible to provide more rapid reporting.

A digital video camera can record metadata such as the format and recording length of a video together with the video it shoots. Further, the digital video camera can communicate with the mobile terminal, receive information related to the interview such as the interview title and the interview location inputted on the mobile terminal, and write the received information into the additional information file. Various types of metadata recorded in the additional information file are used, for example, to more easily search for a desired video file within the video file server. Additionally, the user can check the format and recording length of the video file by viewing various metadata of the video.

Patent Document 1 describes a technology that allows the additional information to be recorded in accurate association with the video intended by the user when the user inputs the contents of an additional information file to be associated with the video from a mobile terminal or the like.

JP2013-098658A

The additional information file is updated when recording of a moving image is started, when recording of a moving image is finished, when metadata to be recorded in the additional information file is received from an external device, etc. The digital video camera is assumed to receive a portion of the metadata to be updated out of the metadata recorded in the additional information file, and to receive the entire additional information file including the updated metadata. After some metadata in the additional information file is updated when video recording starts, if the entire additional information file is received while recording the video, the metadata that was updated when recording started is There is a possibility that it will be overwritten.

An object of the present invention is to prevent metadata included in an additional information file of a video from being updated illegally.

A video recording device according to the present invention includes: a receiving unit that receives an input information file including additional information added to a video; a first acquisition unit that acquires first additional information from the input information file; and a recording device for recording the video. a second acquisition unit that acquires second additional information that is information determined when the video starts; and a generation unit that generates an additional information file to be associated with the video based on the first additional information and the second additional information. means, a recording means for recording the additional information file in association with the moving image in a storage section, a recording means for storing a new input information file received during recording of the moving image in the storage section; A control means for controlling the additional information file not to be updated.

According to the present invention, it is possible to prevent metadata included in an additional information file of a moving image from being illegally updated.

1 is a block diagram showing a configuration example of a digital video camera. FIG. FIG. 3 is a diagram showing an example of a recording format of an additional information file. FIG. 3 is a diagram showing an example of a recording format of an additional information file. This is an example of a menu screen for setting whether to record additional information files. This is an example of a menu screen for setting the recording format of an additional information file. 7 is a flowchart illustrating additional information file recording processing according to the first embodiment. 3 is a flowchart illustrating a notification display process. This is an example of a notification display screen. 7 is a flowchart illustrating additional information file recording processing according to the second embodiment. 12 is a flowchart illustrating additional information file recording processing according to the third embodiment.

<Embodiment 1>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the configuration of a digital video camera 100, which is an example of a video recording device to which the present invention can be applied. The digital video camera 100 includes a control section 101, an image compression/expansion section 102, an imaging section 103, an image processing section 104, a wireless communication section 105, a display section 106, an operation section 107, a ROM 108, a RAM 109, and an additional information generation section 112. . Further, the digital video camera 100 includes a recording medium I/F 110 and a recording medium 111. RAM 109 and recording medium 111 correspond to a storage section. The control unit 101 is connected to each component so that data can be exchanged with each other.

The control unit 101 is, for example, a CPU (processor), and controls the entire system of the digital video camera 100. The control unit 101 controls each component by loading a program recorded in the ROM 108 into the RAM 109 and executing it, thereby realizing the functions executed by each component. The ROM 108 is a non-volatile memory and stores programs executed by the control unit 101.

The RAM 109 is a volatile memory used as a work memory for the control unit 101. The RAM 109 is also used as a VRAM that temporarily stores image data captured by the imaging unit 103 and image-processed by the image processing unit 104 and image data read from the recording medium 111. The image compression/expansion unit 102 can perform compression processing or expansion processing on the image data stored in the RAM 109. Further, the display unit 106 performs display processing by reading image data to the RAM 109.

Further, the RAM 109 is used to temporarily store an XML (Extensible MarkUp Language) file recorded in association with the captured image and metadata written in the XML file. The digital video camera 100 can receive an XML file and metadata to be recorded in association with an image via the wireless communication unit 105.

The digital video camera 100 has a recording medium I/F 110 that is an interface for mounting a recording medium 111 for recording image data. The recording medium I/F 110 is a slot into which a removable recording medium 111 such as a memory card can be inserted. The recording medium 111 is not limited to being removable from the digital video camera 100, and may be a memory built into the digital video camera 100.

The image processing unit 104 performs predetermined processing (pixel interpolation, resizing processing such as reduction, color conversion processing, etc.) on the image data captured by the imaging unit 103. Further, the image processing unit 104 performs predetermined calculation processing using the captured image data, and the imaging unit 103 performs various controls related to imaging (exposure control, auto white balance control, etc.) based on the obtained calculation results. conduct. The image compression/expansion unit 102 performs a process of compressing the image data subjected to image processing by the image processing unit 104 and a process of decompressing the image data read from the recording medium 111.

The imaging unit 103 includes a photographic lens and an image sensor. The photographic lens includes a zoom lens and a focus lens. The imaging unit 103 images a subject under the control of the control unit 101 and obtains image data such as a still image or a moving image.

The display unit 106 is a display for displaying various setting states, a live view image captured by the imaging unit 103, an image read from the recording medium 111 and reproduced, etc. under the control of the control unit 101. The display unit 106 includes, for example, a viewfinder display, a vari-angle liquid crystal monitor, and the like.

The operation unit 107 is an operation member that receives operations from the user. The operation unit 107 includes a power switch for supplying power to the digital video camera 100, a shooting start button, a mode switching button for switching to camera mode (shooting mode) or playback mode, and the like.

The operation unit 107 may include a touch panel. The control unit 101 can detect various operations and states on the touch panel. The control unit 101 detects, for example, that the touch panel has been touched with a finger or a pen (hereinafter referred to as a touch-down), or that the touch panel is being touched with a finger or a pen (hereinafter referred to as a touch-on). The control unit 101 also detects whether the touch panel is moved while touching it with a finger or pen (hereinafter referred to as a touch move), when the finger or pen that was touching the touch panel is released (hereinafter referred to as touch-up), or when there is no action on the touch panel. Detects a state in which the device is not touched (hereinafter referred to as touch-off).

The control unit 101 is notified of these operations and states, as well as the coordinates of the position where the finger or pen is touching the touch panel. The control unit 101 determines what kind of operation was performed on the touch panel based on the notified information. Regarding touch moves, the control unit 101 can determine the direction of movement of a finger or pen on the touch panel for each vertical component and horizontal component on the touch panel, based on changes in position coordinates. A flick is an operation in which you touch a touch panel with your finger, quickly move it a certain distance, and then release it. In other words, a flick is an operation in which a finger is quickly traced on the touch panel. If it is detected that a touch move has been made over a predetermined distance and at a predetermined speed or more, and if a touch-up is detected as it is, it is determined that a flick has been performed. Furthermore, if it is detected that a touch move has been made over a predetermined distance and at a speed less than a predetermined speed, it is determined that a drag has been performed.

The touch panel may be of any of a variety of types, including resistive, capacitive, surface acoustic wave, infrared, electromagnetic induction, image recognition, and optical sensor types.

Under the control of the control unit 101, the wireless communication unit 105 transmits and receives data to and from external devices such as an external camera, a mobile terminal, and a personal computer by wireless communication. The wireless communication unit 105 transmits data such as setting information and operation information of the digital video camera 100, for example. Additionally, the wireless communication unit 105 receives commands for operating the digital video camera 100 and XML files to be recorded together with image data, and stores them in the RAM 109 . Data that can be transmitted and received includes digital image data and analog video signals.

The additional information generation unit 112 generates an additional information file to be recorded in association with the captured image under the control of the control unit 101. The additional information file is an XML file written in XML format. The additional information file includes metadata included in an XML file received from an external device by the wireless communication unit 105 or an XML file recorded in the recording medium I/F 110, and metadata that can be acquired at the time of starting recording, stopping recording, etc. generated using the data.

The recording format (hereinafter also simply referred to as format) of the additional information file (XML file) will be described with reference to FIGS. 2 and 3. FIG. 2 shows an example of original (initial state) metadata in the additional information file. The additional information file 200 includes metadata 201, which is information determined at the time of starting recording of a moving image, and metadata 202, which is information regarding the moving image set by the user.

The additional information generation unit 112 updates information corresponding to each item of the metadata 201 of the additional information file 200 when recording of the moving image is started. The additional information generation unit 112 generates information corresponding to each item of the metadata 202 based on the metadata received from the external device via the wireless communication unit 105 and the metadata included in the XML file read from the recording medium 111. can be updated.

FIG. 3 shows an example of an XML file in a format different from that of the additional information file shown in FIG. The additional information file 300 includes metadata 301 that is information determined when recording a video starts, metadata 302 that is information set by the user, and metadata 303 that is information determined when recording the video stops. .

The additional information generation unit 112 updates information corresponding to each item of the metadata 301 of the additional information file 300 when recording of the moving image is started. The additional information generation unit 112 adds information to each item of the metadata 302 based on the XML file received from the external device via the wireless communication unit 105, the XML file read from the recording medium 111, and the information set on the menu screen. The corresponding information can be updated. The additional information generation unit 112 updates information corresponding to each item of the metadata 303 of the additional information file 300 when recording of the moving image is stopped.

FIG. 4 is an example of a menu screen 400 for setting whether to record additional information files. By moving the selection cursor 401 using the four-direction keys included in the operation unit 107, the user can select and set whether or not to record the additional information file from the items displayed on the menu screen 400. In the example of FIG. 4, when "Add XML file" is set to ON, the control unit 101 records an additional information file containing metadata regarding the video together with the captured video.

FIG. 5 is an example of a menu screen 500 for setting the recording format of the additional information file. By moving the selection cursor 501, the user can set the recording format of the additional information file from the items displayed on the menu screen 500. In the example of FIG. 5, the recording format of the additional information file is “News Metadata” (for example, NewsML-G2
format) or “Original”.

Additional information file recording processing according to the first embodiment will be described with reference to FIGS. 6 and 7. Each process in the flowcharts of FIGS. 6 and 7 is realized by the control unit 101 of the digital video camera 100 loading a program stored in the ROM 108 into the RAM 109 and executing it. The process in FIG. 6 is started, for example, when the digital video camera 100 is set to a camera mode (shooting mode) by a user's operation on the operation unit 107.

FIG. 6 is a flowchart illustrating additional information file recording processing according to the first embodiment. FIG. 6 illustrates a process of generating and recording an additional information file associated with a moving image when an XML file is received from an external device in the camera mode of the digital video camera 100. An XML file received from an external device is also described as an input information file.

In step S100, the control unit 101 determines whether an input information file has been received from an external device via the wireless communication unit 105. The input information file is an XML file containing additional information added to the video. The input information file includes information about all or some of the items included in the additional information file. Further, the input information file includes information predefined according to the recording format.

When the digital video camera 100 is communicably connected to an external device, the digital video camera 100 receives an input information file based on a user's operation or the like. For example, a user can input information (metadata) that he or she wants to add to a video into an external device such as a mobile terminal and transmit it to the digital video camera 100. Digital video camera 100 can receive information from an external device as metadata or an XML file. If the control unit 101 determines that the input information file has been received, the process proceeds to step S101. If the control unit 101 determines that the input information file has not been received, the process proceeds to step S103.

In step S101, the additional information generation unit 112 analyzes the input information file received in step S100, and obtains metadata used to generate an additional information file to be recorded in association with the video. The acquired metadata is stored in the RAM 109.

In step S102, the control unit 101 displays information to be notified to the user on the display unit 106 based on the received input information file and the setting state of the digital video camera 100. Details of the process in step S102 will be described later using FIG.

In step S103, the control unit 101 determines whether recording of a moving image has started. Recording of a moving image is started, for example, by a user's operation to start recording. When the control unit 101 determines that recording of the moving image has started, the process proceeds to step S104. If the control unit 101 determines that recording of the moving image has not started, the process returns to step S100.

In step S104, the control unit 101 determines whether the setting for recording or not recording the additional information file (hereinafter also referred to as recording setting) described with reference to FIG. 4 is turned on. If the control unit 101 determines that the recording setting is turned on, the process proceeds to step S105. When the control unit 101 determines that the recording setting is turned off, the process proceeds to step S107.

In step S105, the additional information generation unit 112 generates an additional information file using the metadata acquired from the input information file in step S101 and the metadata that can be acquired at the start of recording. The metadata acquired from the input information file corresponds to the first additional information. Metadata that can be acquired at the start of recording corresponds to second additional information. In step S106, the additional information generation unit 112 records the additional information file generated in step S105 on the recording medium 111 in association with the moving image being recorded. The additional information generation unit 112 may record the additional information file as a file separate from the video file.

In step S107, the control unit 101 determines whether or not the input information file has been received, as in step S100. If the control unit 101 determines that the input information file has been received, the process proceeds to step S108. If the control unit 101 determines that the input information file has not been received, the process proceeds to step S109.

In step S108, the control unit 101 temporarily stores the input information file received in step S107 in the RAM 109. Note that if the input information file is received multiple times, the control unit 101 may temporarily store the latest input information file in the RAM 109.

In step S109, the control unit 101 determines whether recording of the moving image has stopped. Recording of a moving image is stopped, for example, by a user's operation to stop recording. When the control unit 101 determines that recording of the moving image has stopped, the process proceeds to step S110. If the control unit 101 determines that recording of the moving image has not stopped, the process returns to step S107.

In step S110, similarly to step S104, the control unit 101 determines whether or not the additional information file recording setting described in FIG. 4 is turned on. If the control unit 101 determines that the recording setting is turned on, the process proceeds to step S111. If the control unit 101 determines that the recording setting is turned off, the process proceeds to step S112.

In step S111, the additional information generation unit 112 acquires metadata from information that can be acquired when recording is stopped. The metadata that can be acquired when recording is stopped corresponds to third additional information. The additional information generation unit 112 reads the additional information file recorded on the recording medium 111 in step S106, and updates the corresponding metadata in the additional information file with the metadata acquired when recording was stopped. By updating the metadata at the time of recording stop in the additional information file, the control unit 101 can determine the additional information file to be recorded in association with the moving image whose recording has been stopped.

In step S112, the control unit 101 determines whether the input information file is temporarily stored in the RAM 109 in step S108. If the control unit 101 determines that the input information file is saved, the process proceeds to step S113. If the control unit 101 determines that the input information file is not saved, it ends the process shown in FIG. 6 .

In step S113, the additional information generation unit 112 analyzes the input information file temporarily saved in step S108, and obtains metadata used to generate an additional information file to be recorded in association with the video. The acquired metadata is stored in the RAM 109. The metadata acquired in step S113 is used to generate an additional information file to be associated with a moving image to be recorded from the next time onwards.

That is, when the control unit 101 receives a new input information file while recording a moving image, the control unit 101 temporarily stores the new input information file in the RAM 109 so as not to update the additional information file associated with the moving image being recorded. Control. After the recording of the moving image is stopped, the control unit 101 obtains metadata from the temporarily saved input information file, and the obtained metadata is used to generate an additional information file to be associated with the moving image to be recorded from the next time onwards.

In step S114, similarly to step S102, the control unit 101 displays information to be notified to the user on the display unit 106 based on the input information file temporarily saved in step S108 and the setting state of the digital video camera 100.

With reference to FIG. 7, the notification display processing in step S102 and step S114 in FIG. 6 will be described. The notification display process is a process of notifying the user that the additional information file and the settings of the digital video camera 100 have been updated in the camera mode of the digital video camera 100.

In step S200, the control unit 101 determines whether or not the additional information file recording setting described with reference to FIG. 4 is turned on. If the control unit 101 determines that the recording setting is turned on, the process proceeds to step S201. If the control unit 101 determines that the recording setting is turned off, the process proceeds to step S205.

In step S201, the control unit 101 determines whether the format (recording format) of the additional information file recorded in association with the moving image captured by the digital video camera 100 is the same format as the input information file received from the external device. Determine. The format of the additional information file is the format set on the menu screen 500 for setting the recording format of the additional information file explained with reference to FIG. The format of the input information file is the format of the input information file received in step S100 of FIG. 6 or the format of the input information file temporarily saved in step S108. When the control unit 101 determines that the format of the additional information file and the format of the input information file are the same, the process proceeds to step S202. When the control unit 101 determines that the format of the additional information file and the format of the input information file are different, the process proceeds to step S203.

In step S202, the control unit 101 notifies the user that the metadata used to generate the additional information file has been updated. For example, before the notification display process in step S102 of FIG. 6, the additional information generation unit 112 acquires metadata used to generate the additional information file in step S101. Similarly, before the notification display process in step S114 in FIG. 6, the additional information generation unit 112 acquires metadata used to generate the additional information file in step S113. The additional information generation unit 112 updates the metadata of the additional information file stored in the RAM 109 using the acquired metadata. Therefore, the display unit 106 displays notification information 801 that notifies the user that the metadata has been updated on the display screen 800, as illustrated in FIG. 8(A).

In step S203, the control unit 101 changes the format setting of the additional information file to the format of the received input information file. In step S204, the display unit 106 displays notification information 802 on the display screen 800, which notifies the user that the setting of the format of the additional information file has been changed, as illustrated in FIG. 8(B).

In step S205, the control unit 101 changes the recording setting of the additional information file to ON. Note that when an input information file is received from an external device, it is assumed that the recording setting of the additional information file is set to on, but this is not limited to this. For example, if the received input information file includes additional information instructing to set the recording setting of the additional information file to OFF, the control unit 101 changes the recording setting of the additional information file to OFF.

In step S206, the display unit 106 displays notification information 803 on the display screen 800 to notify the user that the recording settings of the additional information file have been changed, as illustrated in FIG. 8C.

In the first embodiment described above, when the digital video camera 100 receives an input information file including metadata while recording a moving image, the digital video camera 100 temporarily stores the received input information file in the RAM 109, and metadata after stopping recording of the moving image. Get data. Thereby, the digital video camera 100 can prevent unintentional invalid values from being written or existing values from being overwritten in the additional information file associated with the moving image being recorded. Therefore, the digital video camera 100 can prevent the metadata included in the additional information file recorded in association with the moving image from becoming invalid.

<Embodiment 2>
In the first embodiment, metadata acquired from an input information file received during recording of a moving image is used to generate an additional information file to be associated with a moving image to be recorded from the next time onwards. In contrast, in the second embodiment, metadata acquired from an input information file received during recording of a moving image is also used to generate an additional information file associated with the moving image being recorded.

Specifically, the digital video camera 100 temporarily stores metadata acquired at the start of recording a moving image and an input information file received during recording of a moving image. After the recording of the moving image is stopped, the digital video camera 100 regenerates the additional information file using the temporarily saved metadata and the metadata acquired from the temporarily saved input information file. Therefore, the digital video camera 100 can set metadata acquired from an input information file received during recording of a moving image into the additional information file of the moving image being recorded. The configuration of the digital video camera 100 according to the second embodiment is the same as the configuration of the first embodiment shown in FIG. 1, so a description thereof will be omitted.

FIG. 9 is a flowchart illustrating additional information file recording processing according to the second embodiment. Each process in the flowchart of FIG. 9 is realized by the control unit 101 of the digital video camera 100 loading a program stored in the ROM 108 into the RAM 109 and executing it. The process in FIG. 9 is started, for example, when the digital video camera 100 is set to camera mode (shooting mode) by a user's operation on the operation unit 107.

FIG. 9 illustrates a process of generating and recording an additional information file associated with a moving image when an XML file (input information file) is received from an external device in the camera mode of the digital video camera 100. The same processes as those in each step in FIG. 6 described in the first embodiment are given the same reference numerals, and detailed description thereof will be omitted.

The processing from step S100 to step S103 is similar to step S100 to step S103 in FIG. When recording of a moving image is started, in step S400, the additional information generation unit 112 temporarily stores metadata that can be obtained at the time of starting recording in the RAM 109. The processing from step S104 to step S109 is similar to the processing from step S104 to step S109 in FIG.

In step S401, the control unit 101 determines whether the input information file is temporarily stored in the RAM 109 in step S108. If the control unit 101 determines that the input information file is saved, the process proceeds to step S402. If the control unit 101 determines that the input information file is not saved, the process proceeds to step S406.

In step S402, the additional information generation unit 112 analyzes the input information file temporarily saved in step S108, and acquires metadata used to generate an additional information file to be recorded in association with the video. The acquired metadata is stored in the RAM 109.

In step S403, the additional information generation unit 112 regenerates an additional information file to be recorded in association with the video. The additional information generation unit 112 regenerates the additional information file using the metadata acquired in step S402, the metadata at the start of recording temporarily saved in step S400, and the metadata that can be acquired at the time of stopping recording. .

In step S404, the control unit 101 deletes the additional information file recorded on the recording medium 111 in step S106, and records the additional information file regenerated in step S404 on the recording medium 111.

In step S405, similarly to step S102, the control unit 101 displays information to be notified to the user on the display unit 106 based on the input information file temporarily saved in step S108 and the setting state of the digital video camera 100. The notification display process in step S405 is similar to the process described with reference to FIG.

In step S406, the control unit 101 determines whether or not the additional information file recording setting described with reference to FIG. 4 is turned on. If the control unit 101 determines that the recording setting is turned on, the process advances to step S407. If the control unit 101 determines that the recording setting is turned off, it ends the process shown in FIG. 9 .

In step S407, the additional information generation unit 112 acquires metadata from information that can be acquired when recording is stopped. The additional information generation unit 112 reads the additional information file recorded on the recording medium 111 in step S106, and updates the corresponding metadata in the additional information file with the metadata acquired when recording was stopped.

In the second embodiment described above, the digital video camera 100 temporarily stores the metadata acquired at the start of recording. Further, when the digital video camera 100 receives an input information file including metadata while recording a moving image, the digital video camera 100 temporarily stores the received input information file. When video recording stops, the digital video camera 100 uses the temporarily saved metadata at the start of recording, the metadata obtained from the temporarily saved input information file, and the metadata obtained at the time of stopping recording to add information. Regenerate the information file. Since the digital video camera 100 regenerates the additional information file after recording of the moving image is stopped, it is possible to generate the additional information file in a normal state and record it on the recording medium 111.

<Embodiment 3>
In the second embodiment, the digital video camera 100 acquires metadata at the start of recording a moving image based on the recording format setting of the additional information file (XML file), and stores it in the RAM 109. In contrast, in the third embodiment, the digital video camera 100 acquires metadata at the start of recording of a moving image corresponding to a plurality of recording formats of the additional information file, and stores it in the RAM 109.

Even if the digital video camera 100 receives an input information file in a format different from the generated additional information file, the digital video camera 100 uses the metadata at the start of recording according to the format of the received input information file to generate the additional information file in the format. can be regenerated. The configuration of the digital video camera 100 according to the third embodiment is the same as the configuration of the first embodiment shown in FIG. 1, so a description thereof will be omitted.

FIG. 10 is a flowchart illustrating additional information file recording processing according to the third embodiment. Each process in the flowchart of FIG. 10 is realized by the control unit 101 of the digital video camera 100 loading a program stored in the ROM 108 into the RAM 109 and executing it. The process in FIG. 10 is started, for example, when the digital video camera 100 is set to camera mode (shooting mode) by a user's operation on the operation unit 107.

FIG. 10 illustrates a process of generating and recording an additional information file associated with a moving image when an XML file (input information file) is received from an external device in the camera mode of the digital video camera 100. Processes that are the same as each step in FIG. 6 described in Embodiment 1 and each step in FIG. 9 described in Embodiment 2 are given the same reference numerals, and detailed description thereof will be omitted.

The processing from step S100 to step S103 is similar to step S100 to step S103 in FIG. When recording of a moving image is started, in step S500, the additional information generation unit 112 temporarily stores in the RAM 109 metadata that can be acquired at the time of starting recording and that corresponds to XML files in multiple formats. . The plurality of XML file formats here include an XML file format that can be recorded by the digital video camera 100 in association with a moving image as an additional information file. The process in step S104 is similar to the process in step S104 in FIG.

In step S501, the additional information generation unit 112 acquires metadata in an appropriate format according to the format of the additional information file to be generated, from among the metadata temporarily stored in the RAM 109 in step S500. In step S501, the format of the additional information file to be generated can be the same as the input information file received in step S100. Note that the format of the additional information file to be generated may be the recording format of the additional information file set on the menu screen 500 in FIG. 5.

In step S502, the additional information generation unit 112 generates an additional information file using the metadata acquired from the input information file in step S101 and the metadata at the start of recording in an appropriate format acquired in step S501. .

The processing from step S106 to step S109 is similar to the processing from step S106 to step S109 in FIG. Further, the processes in steps S401 to S402 and steps S406 to S407 are similar to the processes in steps S401 to S402 and S406 to S407 in FIG.

In step S503, the additional information generation unit 112 obtains metadata in an appropriate format according to the format of the additional information file to be generated, from among the metadata temporarily stored in the RAM 109 in step S500. In step S503, the format of the additional information file to be generated is the same format as the input information file temporarily saved in step S108.

In step S504, the additional information generation unit 112 determines whether to acquire metadata at the time of recording stop when analyzing the input information file temporarily saved in step S108 and generating an additional information file to be recorded in association with the video. Determine whether

Whether or not to acquire metadata when recording is stopped is determined, for example, by whether or not metadata determined when recording is stopped is used to generate the additional information file. For example, in the XML file format shown in FIG. 3, metadata 303, which is information determined when recording of a moving image is stopped, includes metadata "clip recording time." Since the recording time of a clip is information that is determined when recording of a moving image is stopped, when generating an additional information file in the XML file format shown in FIG. It is determined that . On the other hand, in the XML file format shown in FIG. It is determined that the data is not used.

If the additional information generation unit 112 determines to acquire metadata at the time of recording stop, the process proceeds to step S505. If the additional information generation unit 112 determines that the metadata at the time of recording stop is not to be acquired, the process proceeds to step S506.

In step S505, the additional information generation unit 112 analyzes the input information file temporarily saved in step S108, and generates metadata that can be acquired when recording is stopped in order to generate an additional information file to be recorded in association with the video. get.

In S506, the additional information generation unit 112 regenerates an additional information file to be recorded in association with the video. The additional information generation unit 112 regenerates the additional information file using the metadata acquired in step S402, the metadata at the time of recording start acquired in step S503, and the metadata at the time of recording stop acquired in step S505. . The processing from step S404 to step S405 is similar to the processing from step S404 to step S405 in FIG.

In the third embodiment described above, when starting recording a moving image, the digital video camera 100 acquires metadata at the time of starting recording corresponding to XML files of a plurality of formats, and temporarily stores it in the RAM 109. In addition, if the digital video camera 100 receives an input information file in a format different from the additional information file while recording a video, after the video recording is stopped, the metadata at the time of recording start corresponding to the format of the received input information file is sent to the digital video camera 100. Use to regenerate the additional information file. Therefore, the digital video camera 100 can appropriately reproduce the additional information file in the same format as the input information file received during recording of the moving image.

Although the present invention has been described above in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and the present invention may take various forms without departing from the gist of the present invention. included. Some of the embodiments described above may be combined as appropriate.

Further, a case where a software program that implements the functions of the above-described embodiments is supplied directly from a recording medium or using wired/wireless communication to a system or device having a computer capable of executing the program, and the program is executed. Also included in the present invention.

Therefore, in order to realize the functional processing of the present invention on a computer, the program code itself that is supplied and installed in the computer also realizes the present invention. In other words, the present invention also includes a computer program itself for realizing the functional processing of the present invention. In this case, the form of the program does not matter, such as an object code, a program executed by an interpreter, or script data supplied to the OS, as long as it has the function of a program.

The recording medium for supplying the program may be, for example, a hard disk, a magnetic recording medium such as a magnetic tape, an optical/magnetic optical storage medium, or a nonvolatile semiconductor memory. Further, as a method of supplying the program, a method may be considered in which a computer program for realizing the present invention is stored in a server on a computer network, and a connected client computer downloads the computer program.

<Other embodiments>
The present invention provides a system or device with a program that implements one or more of the functions of the embodiments described above via a network or a storage medium, and one or more processors in the computer of the system or device reads and executes the program. This can also be achieved by processing. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

The disclosure of this embodiment includes the following configuration, method, and program.
(Configuration 1)
Receiving means for receiving an input information file including additional information added to the video;
a first acquisition means for acquiring first additional information from the input information file;
a second acquisition means for acquiring second additional information that is information determined when recording of the moving image starts;
generation means for generating an additional information file associated with the video based on the first additional information and the second additional information;
recording means for recording the additional information file in a storage unit in association with the video;
A video recording device characterized by having a control means for storing a new input information file received during recording of the moving image in a storage unit, and controlling the additional information file not to be updated while recording the moving image. .
(Configuration 2)
The second acquisition means further acquires third additional information that is information determined when recording of the moving image stops,
The video recording device according to configuration 1, wherein the generating means updates the additional information file recorded in the storage unit with the third additional information.
(Configuration 3)
The second acquisition means is
storing the second additional information in the storage unit;
When recording of the moving image stops, further acquiring third additional information that is information determined when recording of the moving image stops,
The first acquisition means acquires the first additional information from the new input information file recorded in the storage unit when recording of the moving image is stopped;
The generating means reproduces the additional information file based on the first additional information acquired from the new input information file, the second additional information stored in the storage unit, and the third additional information. The video recording device according to configuration 1, characterized in that:
(Configuration 4)
The second acquisition means is
storing the second additional information corresponding to the additional information files in a plurality of recording formats in the storage unit;
When recording of the moving image stops, further acquiring third additional information that is information determined when recording of the moving image stops,
The first acquisition means acquires the first additional information from the new input information file recorded in the storage unit when recording of the moving image is stopped;
The generating means includes the first additional information acquired from the new input information file and the second additional information that corresponds to the recording format of the new input information file from among the second additional information stored in the storage unit. The video recording device according to configuration 1, wherein the additional information file is regenerated based on the information and the third additional information.
(Configuration 5)
Changing means for changing the setting of whether or not to record the additional information file associated with the moving image in the storage unit and the setting of the recording format of the additional information file based on information included in the received input information file. 5. The video recording device according to any one of configurations 1 to 4, further comprising:
(Configuration 6)
Further comprising a notification means for notifying a user that a setting of whether or not to record the additional information file in the storage unit for the video and a setting of a recording format of the additional information file have been changed. The video recording device according to configuration 5, comprising:
(Configuration 7)
7. The video recording device according to any one of configurations 1 to 6, wherein the recording means records the additional information file as a file separate from the moving image file.
(Configuration 8)
8. The video recording apparatus according to any one of configurations 1 to 7, wherein the input information file includes information about all or some of the items included in the additional information file.
(Configuration 9)
9. The video recording apparatus according to any one of configurations 1 to 8, wherein the input information file and the additional information file include information predefined according to a recording format.
(Configuration 10)
The input information file and the additional information file are XML (Extensible
9. The video recording device according to configuration 9, wherein the video recording device is in a MarkUp Language format.
(Configuration 11)
11. The video recording device according to configuration 10, wherein the input information file and the additional information file are in NewsML-G2 format.
(Configuration 12)
The video recording device according to any one of configurations 1 to 11, wherein the first additional information is information regarding the moving image set by the user.
(Method)
a receiving step of receiving an input information file including additional information added to the video;
a first acquisition step of acquiring first additional information from the input information file;
a second acquisition step of acquiring second additional information that is information determined when recording of the video starts;
a generation step of generating an additional information file to be associated with the video based on the first additional information and the second additional information;
a recording step of recording the additional information file in a storage unit in association with the video;
A control step for storing a new input information file received during the recording of the moving image in the storage unit, and controlling the additional information file not to be updated during the recording of the moving image. How to control the device.
(program)
A program for causing a computer to function as each means of the video recording device according to any one of Configurations 1 to 12.

100: Digital video camera, 101: Control unit, 105: Wireless communication unit, 109: RAM, 111: Recording medium, 112: Additional information generation unit

Claims (14)

Receiving means for receiving an input information file including additional information added to the video;
a first acquisition means for acquiring first additional information from the input information file;
a second acquisition means for acquiring second additional information that is information determined when recording of the moving image starts;
generation means for generating an additional information file associated with the video based on the first additional information and the second additional information;
recording means for recording the additional information file in a storage unit in association with the video;
A video recording device characterized by having a control means for storing a new input information file received during recording of the moving image in a storage unit, and controlling the additional information file not to be updated while recording the moving image. . The second acquisition means further acquires third additional information that is information determined when recording of the moving image stops,
The video recording apparatus according to claim 1, wherein the generating means updates the additional information file recorded in the storage unit with the third additional information. The second acquisition means is
storing the second additional information in the storage unit;
When recording of the moving image stops, further acquiring third additional information that is information determined when recording of the moving image stops,
The first acquisition means acquires the first additional information from the new input information file recorded in the storage unit when recording of the moving image is stopped;
The generating means reproduces the additional information file based on the first additional information acquired from the new input information file, the second additional information stored in the storage unit, and the third additional information. The video recording device according to claim 1, characterized in that: The second acquisition means is
storing the second additional information corresponding to the additional information files in a plurality of recording formats in the storage unit;
When recording of the moving image stops, further acquiring third additional information that is information determined when recording of the moving image stops,
The first acquisition means acquires the first additional information from the new input information file recorded in the storage unit when recording of the moving image is stopped;
The generating means includes the first additional information acquired from the new input information file and the second additional information that corresponds to the recording format of the new input information file from among the second additional information stored in the storage unit. The video recording apparatus according to claim 1, wherein the additional information file is regenerated based on the information and the third additional information. Changing means for changing the setting of whether or not to record the additional information file associated with the moving image in the storage unit and the setting of the recording format of the additional information file based on information included in the received input information file. The video recording device according to any one of claims 1 to 4, further comprising: Further comprising a notification means for notifying a user that a setting of whether or not to record the additional information file in the storage unit for the video and a setting of a recording format of the additional information file have been changed. 6. The video recording device according to claim 5, further comprising a video recording device. 5. The video recording apparatus according to claim 1, wherein the recording means records the additional information file as a file separate from the moving image file. 5. The video recording apparatus according to claim 1, wherein the input information file includes information about all or some of the items included in the additional information file. 5. The video recording apparatus according to claim 1, wherein the input information file and the additional information file include information predefined according to a recording format. The input information file and the additional information file are XML (Extensible
10. The video recording device according to claim 9, wherein the video recording device is in a MarkUp Language format. The video recording apparatus according to claim 10, wherein the input information file and the additional information file are in NewsML-G2 format. The video recording device according to any one of claims 1 to 4, wherein the first additional information is information regarding the moving image set by a user. a receiving step of receiving an input information file including additional information added to the video;
a first acquisition step of acquiring first additional information from the input information file;
a second acquisition step of acquiring second additional information that is information determined when recording of the video starts;
a generation step of generating an additional information file to be associated with the video based on the first additional information and the second additional information;
a recording step of recording the additional information file in a storage unit in association with the video;
A control step for storing a new input information file received during the recording of the moving image in the storage unit, and controlling the additional information file not to be updated during the recording of the moving image. How to control the device. A program for causing a computer to function as each means of the video recording device according to any one of claims 1 to 4.

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