JP2011071970A - Recording apparatus - Google Patents

Abstract

When a conventional playback device plays back a moving image file stored on a storage medium, the moving image of the moving image file stored on the storage medium is not an interlace method but a progressive method. Provided is a recording apparatus for recording a moving image file so that it can be appropriately dealt with.
A recording apparatus includes an acquisition unit that acquires moving image data and management information, and a controller that refers to the management information and determines whether moving image data is a predetermined progressive method or a method other than a predetermined progressive method. And a recording unit for recording the moving image data in different folders on the recording medium according to the determination result.
[Selection] Figure 3

Description

  The present invention relates to a recording apparatus. More specifically, the present invention relates to a recording apparatus that records a moving image.

  Patent Document 1 discloses an image signal output device that can output progressive image signals and interlaced image signals. The image sensor of the image signal output device outputs a progressive image signal. The image signal output device performs predetermined signal processing in the camera, and then converts the obtained image signal from the progressive method to the interlace method.

  Accordingly, the image signal output device can generate and output an interlaced image signal based on the progressive image signal. The image signal output device can also output a progressive image signal as it is.

JP 2008-54221 A

  Now, the image signal output by the image signal output device is recorded on a recording medium, and the recorded moving image file is recorded on a conventional playback device (for example, a BD player, a DVD player, a BD recorder / DVD recorder having a playback function). ) Think about playing.

  At this time, the conventional playback apparatus has a problem that it can play back an interlace video file, but cannot play a progressive video file. This is because there has been no standard for reproducing progressive moving image files. For example, the method of reproducing a progressive video file having a resolution (number of pixels) of 1920 × 1080 and 60 (frames / second) is not defined by the DVD standard or the BD standard. Therefore, even if an attempt is made to play a progressive video file having a resolution of 1920 × 1080 and 60 (frames / second) on a playback device that does not support playback of such a video file, as recorded. Will not be output properly.

  Rather, the playback device operates unexpectedly. For example, the playback device may frequently freeze the video during the playback process. Also, depending on the playback device, there may be a case where an error occurs and “cannot be played back” is displayed.

  The reason for the lack of standards for playing progressive video files is that, for example, (1) recording devices have become popular on the premise of televisions that display video in an interlaced format, so recording devices support the progressive format. (2) that there was no image sensor that outputs an image signal by such a method and consumer equipment that outputs such an image signal, and (3) a video of a progressive method Image file reproduction processing is unprecedented and has a high load, and the implementation of such hardware is greatly affected by the cost problem. Up to now, it has not been particularly required in the industry to support progressive video files, but in the future, with the advent of the image signal output device described in Patent Document 1, the conventional playback device Therefore, it is necessary to consider the recording method so that no problems occur.

  In consideration of the third hardware limitation described above, it is not possible to support the progressive method in the conventional playback device by simply updating the firmware. Therefore, when recording progressive format image signals on a recording medium, it is necessary to consider that there are playback devices that do not support the format.

  The present invention has been made in view of the above problems, and its purpose is stored on a storage medium when a conventional playback apparatus plays back a moving image file stored on the storage medium. An object of the present invention is to provide a recording apparatus for recording a moving image file so that the moving image can be appropriately dealt with even if the moving image of the moving image file is not an interlace method but a progressive method.

  The recording apparatus according to the present invention determines whether the moving image data is a predetermined progressive method or a method other than the predetermined progressive method with reference to the acquisition unit that acquires moving image data and management information, and the management information And a recording unit that records the moving image data in different folders on a recording medium according to the determination result.

  The predetermined progressive method may be a 60 frame / second progressive method.

  Methods other than the predetermined progressive method include an interlace method and a progressive method of 24 frames / second, and the management information may include information indicating a frame rate and a scanning method.

  When the determination result indicates that the moving image data is the predetermined progressive method, the recording unit records the moving image data in a folder in which only the moving image data of the predetermined progressive method is recorded. Also good.

  The recording apparatus further includes an imaging unit that images a subject and outputs an image signal of the subject, and an image processing unit that generates moving image data based on the image signal, wherein the image processing unit is a progressive method One of the moving image data and the interlaced moving image data may be generated.

  The image processing unit may generate moving image data having the same resolution regardless of the progressive method and the interlace method.

  The image processing unit may generate moving image data having a resolution of 1920 × 1080 pixels.

  Another recording apparatus according to the present invention holds an acquisition unit that acquires moving image data and management information, and a table in which information indicating at least one format is described. With reference to the management information and the table, A controller that determines whether the format of the moving image data corresponds to the at least one format described in the table, and records the moving image data in a different folder on a recording medium according to the determination result And a recording unit.

  A playback device according to the present invention is a playback device for playing back moving image data recorded on a recording medium, wherein the recording medium includes a first folder in which first moving image data of a predetermined progressive format is stored, And a second folder storing second moving image data of a method other than the predetermined progressive method, the first moving image data is read from the first folder, and the second folder is read from the second folder. An acquisition unit for reading moving image data, a controller for selectively displaying the acquired first moving image data and the second moving image data, and a first moving image data and the second moving image from a user. An operation unit that receives an instruction to select one of the data, and the controller includes the first moving image data selected via the operation unit and the first data Playing one of the video data.

  When the first moving image data is selected, the controller causes the acquisition unit to refer to the first folder, reads the first moving image data, and reads the first moving image data. And when the second moving image data is selected, the controller causes the acquisition unit to refer to the second folder, reads the second moving image data, and reads the read second moving image data. Two moving image data may be reproduced.

  A computer program according to the present invention is a computer program executed by a computer of a recording apparatus, wherein the computer program obtains moving image data and management information from the computer, and refers to the management information. Determining whether the moving image data is a predetermined progressive method or a method other than the predetermined progressive method, and recording the moving image data in a different folder on a recording medium according to a determination result. Let it run.

  The recording apparatus of the present invention includes a controller that determines whether moving image data is a predetermined progressive method or a method other than the predetermined progressive method, and the moving image data is stored in different folders on a recording medium according to the determination result. And a recording unit for recording. When this recording medium is loaded into a conventional playback device, the playback device does not support playback of moving image data of the progressive method, but it supports playback of moving image data of a method other than the progressive method. May access a folder storing moving image data of a method other than the progressive method. In particular, if the folder name of a folder in which moving image data of a method other than the progressive method is stored matches the name on a predetermined rule, the conventional playback apparatus always refers to that folder. On the other hand, the other folder is not accessed. As a result, it is possible to prevent video freezing by playing back a moving image that does not support playback.

1 is a block diagram showing a configuration of a digital video camera 100. FIG. 3 is a schematic diagram for explaining a folder configuration of an HDD 180 or a memory card 200. FIG. 10 is a flowchart for explaining a moving image shooting operation at a resolution of 1920 × 1080 pixels and 60 (frames / second). (A)-(c) is a schematic diagram which shows the user interface at the time of reproducing | regenerating a moving image file with a reproducing | regenerating apparatus. It is a block diagram which shows the structure of the BD recorder 500 by Embodiment 2. 10 is a flowchart for explaining a moving image recording operation by the BD recorder 500 according to the second embodiment. 10 is a flowchart for explaining a moving image recording operation by the BD recorder 500 according to the third embodiment. It is a figure which shows the detail of the AVCHDEX folder recorded by the process shown in FIG.

  Hereinafter, embodiments of a recording apparatus according to the present invention will be described with reference to the accompanying drawings.

[1. Embodiment 1]
[1-1. Overview〕
Hereinafter, a digital video camera will be described as an embodiment of the present invention.

  FIG. 1 is a block diagram showing a configuration of the digital video camera 100.

  The digital video camera 100 according to the present embodiment can generate a progressive video file and an interlace video file.

  The digital video camera 100 according to the present embodiment stores a moving image file as a storage medium so that when the reproducing apparatus reproduces the moving image file, the moving image file to be reproduced can be recognized as a progressive method or an interlace method. To record. The “reproducing device” herein includes a conventional reproducing device.

[1-2. Electrical configuration)
Hereinafter, the electrical configuration of the digital video camera 100 according to the present embodiment will be described with reference to FIG.

  The digital video camera 100 captures a subject image formed by an optical system 110 including one or a plurality of lenses with a CCD image sensor 130. The image signal generated by the CCD image sensor 130 is converted into digital data (image data) by the AD converter 140. The image data is subjected to various processes by the image processing unit 150 and stored in the hard disk drive (HDD) 180 or the memory card 200. Hereinafter, the configuration of the digital video camera 100 will be described in detail.

  The optical system 110 includes a zoom lens and a focus lens. The subject image can be enlarged or reduced by moving the zoom lens along the optical axis. Further, the focus of the subject image can be adjusted by moving the focus lens along the optical axis.

  The lens driving unit 120 drives various lenses included in the optical system 110. For example, the lens driving unit 120 includes a zoom motor that drives a zoom lens and a focus motor that drives a focus lens.

  The CCD image sensor 130 captures the subject image formed by the optical system 110 and generates an image signal. The CCD image sensor 130 performs various operations such as exposure, transfer, and electronic shutter. In the present embodiment, the CCD image sensor 130 outputs a progressive image signal.

  The A / D converter 140 converts the analog image signal generated by the CCD image sensor 130 into digital image data.

  The image processing unit 150 performs various processes on the image data generated by the CCD image sensor 130. The image processing unit 150 performs predetermined image processing on the image data generated by the CCD image sensor 130 and generates image data to be displayed on the display monitor 220. Alternatively, the image processing unit 150 generates image data to be stored in the HDD 180 or the memory card 200. For example, the image processing unit 150 performs various processes such as gamma correction, white balance correction, and flaw correction on image data generated from the image signal output from the CCD image sensor 130.

  Further, the image processing unit 150 can generate an interlaced moving image file or a progressive moving image file based on the image data generated by the CCD image sensor 130.

  In the digital video camera 100 according to the present embodiment, the image processing unit 150 generates an interlaced moving image file or a progressive moving image file based on the progressive image signal generated by the CCD image sensor 130. Although it was decided to generate, it is not always necessary to do this. For example, an interlaced or progressive image signal may be generated by controlling a reading method when the CCD image sensor 130 captures an image. In addition, the image processing unit 150 compresses image data based on the image signal generated by the CCD image sensor 130 according to the MPEG-4 / AVC standard (MPEG-4 Part 10 Advanced Video Coding) or JPEG compression method. Compress moving image data or image data by (Joint Photographic Expert Group) or the like. The image processing unit 150 can be realized by a DSP or a microcomputer.

  The controller 160 controls the entire operation of the digital video camera 100. The controller 160 can be realized by a semiconductor element or the like. The controller 160 may be configured only by hardware, or may be realized by combining hardware and software. The controller 160 is a microcomputer, for example.

  The buffer 170 functions as a work memory for the image processing unit 150 and the controller 160. The buffer 170 is, for example, a DRAM or a ferroelectric memory.

  The HDD 180 records, for example, moving image data generated by the image processing unit 150 on a hard disk. In the present specification, when moving image data is recorded on a recording medium, the moving image data exists as a moving image file on a file system constructed on the recording medium. The entity of the moving image file is moving image data.

  The card slot 190 is detachable from the memory card 200. The card slot 190 is mechanically and electrically connected to the memory card 200. The memory card 200 includes a flash memory, a ferroelectric memory, and the like, and can store data such as a moving image file generated by the image processing unit 150. The controller 160 described above writes a moving image file to the memory card 200 or reads out a moving image file recorded on the memory card 200 via the card slot 190.

  The operation unit 210 is a generic term for user interfaces that accept operations from the user. For example, the operation unit 210 is a cross key or a determination button that receives an operation or instruction from the user.

  The display monitor 220 can display an image indicated by image data generated by the CCD image sensor 130 or an image indicated by image data read from the HDD 180 or the memory card 200.

  The IEEE 1394 terminal 230 is used for transmitting and receiving digital data between the digital video camera 100 and an external device.

  The microphone 260 collects sound. The sound collected by the microphone 260 is recorded in the HDD 180 or the memory card 200.

  The speaker 270 outputs audio data stored on the moving image file stored in the HDD 180 or the memory card 200 by superimposing the image data.

  The BD drive 300 accepts transfer of a moving image file recorded on the HDD 180 or the memory card 200. When the transfer of the moving image file is accepted, the BD drive 300 records the moving image file on the DVD medium or the BD medium. Further, the BD drive 300 reads a moving image stored on a DVD medium or a BD medium. The read moving image is reproduced via the display monitor 220 and the speaker 270.

  As described above, the digital video camera 100 acquires a moving image file using the card slot 190, the BD drive 300, and / or the IEEE1394 terminal 230. These may be collectively referred to as an acquisition unit 240.

[1-3. (Folder structure)
Next, a folder configuration of the HDD 180 or the memory card 200 in which the digital video camera 100 according to the present embodiment records a moving image file will be described with reference to FIG. FIG. 2 is a schematic diagram for explaining a folder structure of the HDD 180 or the memory card 200.

  In the hierarchy below the Root folder (Root) of the HDD 180 or the memory card 200, a “DCIM” folder and a “PRIVATE” folder are provided. The folder configuration in FIG. 2 is an example. As will be described later, in this embodiment, the moving image file is stored in the “PRIVATE” folder. This folder name is an example, and other folder names may be adopted. In FIG. 2, the “DCIM” folder is provided in addition to the “PRIVATE” folder, but whether or not the “DCIM” folder is provided is arbitrary. Other folders may be provided.

  A plurality of folders can be created in a hierarchy below the “DCIM” folder of the HDD 180 or the memory card 200. Each folder stores a JPEG standard image file (JPEG file).

  On the other hand, an “AVCHD” folder and an “AVCHDEX” folder are provided below the “PRIVATE” folder of the HDD 180 or the memory card 200. In this embodiment, the “AVCHD” folder stores interlaced moving image files, and the “AVCHDEX” folder stores progressive moving image files. More specifically, the “AVCHD” folder stores a moving image file having a resolution of 1920 × 1080 pixels and a frame rate of 60 (field / second) (interlace method). On the other hand, the “AVCHEX” folder stores a moving image file having a resolution of 1920 × 1080 pixels and a frame rate of 60 (frame / second) (progressive method).

  As described above, the digital video camera 100 according to the present embodiment stores the interlaced moving image file and the progressive moving image file in different folders on the HDD 180 or the memory card 200. The reason for changing the folder for storing moving image files according to the type of moving image file is as follows.

  Now, consider an example in which a moving image file recorded on the HDD 180 or the memory card 200 is recorded on a Blu-ray disc or DVD and played back by a playback device such as a BD recorder or DVD recorder. This playback apparatus has a resolution of 1920 × 1080 and does not support playback of 60 (frame / second) progressive video files.

  For example, an interlaced moving image file with a resolution of 1920 × 1080 pixels and a progressive moving image file with a resolution of 1920 × 1080 pixels and 60 (frames / second) are stored in the same folder. Suppose. Then, when reproducing the moving image file, the reproducing device reproduces the moving image file by referring to the folder in which the interlaced moving image file and the progressive moving image file are stored. . As a result, the BD recorder and the DVD recorder reproduce the progressive moving image file by the same method as the method of reproducing the interlaced moving image file. As described above, even when a progressive moving image file is played by a method of playing an interlaced moving image file, the moving image output from the playback device to a display monitor such as a television is not smooth and unnatural. . Such a smooth moving image is difficult for the user to see. In addition, there is a high possibility that it will be mistaken for equipment failure.

  On the other hand, when the interlaced moving image file and the progressive moving image file are stored in different folders on the HDD 180 or the memory card 200 as in the digital video camera 100 according to the present embodiment, the above-described playback device is A progressive video file is no longer played back by a method of playing back an interlace video file. This is because the rule for referring to the “AVCHD” folder directly under the folder “PRIVATE” is predetermined in the conventional playback apparatus by the AVCHD standard. As described above, only the interlaced moving image file is stored in the “AVCHD” folder.

  On the other hand, in a playback apparatus that supports playback of progressive video files, the rule that progressive video files are stored in the “AVCHEX” folder is used as a standard or an agreement between playback device manufacturers. As follows. Thus, for example, a playback device that does not support playback of progressive format video files does not refer to the “AVCHDEX” folder, but refers only to the folder in which the interlace format video files are stored. Only interlaced video files can be played back. A playback apparatus that supports playback of a progressive video file plays an interlace video file when playing a video file from a folder in which the interlace video file is stored, and a progressive video file. When a moving image file is reproduced from a folder in which is stored, it can be reproduced in a progressive manner.

[1-4. (Movie shooting operation)
Next, with reference to FIG. 3, a moving image shooting operation by the digital video camera 100 according to the present embodiment will be described. FIG. 3 is a flowchart for explaining a moving image shooting operation at a resolution of 1920 × 1080 pixels and 60 (frames / second).

  The user can set the digital video camera 100 to the moving image shooting mode by operating a mode change button constituting a part of the operation unit 210 (step S100). When the moving image shooting mode is set, the controller 160 stands by until the user operates a moving image shooting start button constituting a part of the operation unit 210 (step S110).

  When the video shooting start button is operated by the user, the controller 160 causes the moving image file generated by the image processing unit 150 to have a resolution of 1920 × 1080 pixels and 60 (frame / second) progressive video. It is determined whether the file is an image file (60p) or a resolution is 1920 × 1080 pixels and the moving image file is a 60 (field / second) interlaced moving image file (60i) (step S120). Whether it is 60p or 60i is specified based on, for example, moving image shooting conditions preset by the user.

  If it is determined that the video file is a progressive video file, the controller 160 starts recording the video file in the “AVCHEX” folder on the HDD 180 or the memory card 200 (step S130).

  On the other hand, when determining that the file is an interlaced moving image file, the controller 160 starts recording the moving image file in the “AVCHD” folder on the HDD 180 or the memory card 200 (step S140).

[1-5. (Playback operation by playback device)
Next, with reference to FIG. 4, the playback operation of the moving image file by the playback device will be described. 4A to 4C are schematic diagrams illustrating a user interface when a moving image file is played back by the playback device. FIG. 4A shows a user interface when a moving image file is played back by a playback device that does not support 60p (for example, a conventional playback device). FIGS. 4B and 4C show a user interface when a moving image file is played back by a playback device compatible with 60p.

  For example, the digital video camera 100 records both a progressive moving image file and an interlaced moving image file on the HDD 180 or the memory card 200, and then the moving image file recorded on the HDD 180 or the memory card 200 is recorded on the Blu-ray disc. Or consider an example recorded on a DVD. For the sake of simplicity, a combination of a Blu-ray disc and a BD recorder having a playback function will be described below, but a combination of a DVD and a DVD recorder having a playback function may be used.

  It is assumed that this Blu-ray disc is loaded in a BD recorder that does not support the reproduction of progressive video files. The BD recorder refers to only the “AVCHD” folder in the loaded disc and reproduces the moving image file. Therefore, the BD recorder plays back only the interlaced moving image file. For example, the BD recorder can notify the user that only the interlaced moving image file is reproduced by outputting the screen shown in FIG. 4A to a display monitor such as a connected television. When the user presses the enter button of the operation unit 210 on the screen of FIG. 4A, the controller 160 starts to play the moving image file in the “AVCHD” folder.

  On the other hand, it is assumed that the above-described disc is loaded into a BD recorder that supports playback of progressive video files. The BD recorder can play back a moving image file stored in the “AVCHD” folder or the “AVCHDEX” folder in the loaded disc. For example, the controller 160 of the BD recorder outputs the screen shown in FIG. 4B to a display monitor such as a connected television. When the user selects “Watch video (60i)” on this screen, all moving image files in the “AVCHD” folder can be viewed. If “Watch video (60p)” is selected, all moving image files in the “AVCHEX” folder can be viewed. That is, a moving image file is reproduced in units of “AVCHD” folders and “AVCHDEX” folders. The user can select whether to reproduce a progressive moving image file or an interlaced moving image file via the operation unit 210. The controller 160 of the BD recorder makes the BD drive 300 refer to the folder in which the moving image file selected by the user via the operation unit 210 is stored, and the moving image file stored in the folder is referred to. Read. Then, the controller 160 reproduces the acquired moving image file.

  As shown in FIG. 4 (c), a BD recorder that supports playback of progressive format video files, regardless of whether it is a 60i video file or a 60p video file, May be displayed as a replayable moving image file without distinction.

  When the user selects “view captured video (60i / 60p)” via the operation unit 210, for example, the BD recorder displays the 60i moving image file and the 60p moving image file in order of recording date and time. The user may be able to select. The recording date and time may be referred to the time stamp attached to the moving image file.

  When the user performs a moving image file selection operation, if the moving image file is 60i, the BD recorder refers to the “AVCHD” folder and reproduces the selected moving image file. If the selected moving image file is 60p, the BD recorder refers to the “AVCHEX” folder and reproduces the selected moving image file.

  Note that the digital video camera 100 according to the present embodiment records some progressive video files in the “AVCHD” folder. Specifically, it is a progressive video file with a resolution of 1920 × 1080 pixels and 24 (frames / second). This is because the progressive format moving image file is defined in the BD standard and can be reproduced by many BD recorders and DVD recorders.

[1-6. (Additional operation with a digital video camera that does not support progressive methods)
Next, an additional recording operation by a digital video camera having a resolution of 1920 × 1080 pixels and not compatible with 60 (frame / second) progressive moving image will be described. It is assumed that this digital video camera has a resolution of 1920 × 1080 pixels and can capture an interlaced moving image of 60 (frame / second).

  When the digital video camera generates the above-described interlace video file, the digital video camera stores the generated video file in the “AVCHD” folder. Since it does not support 60p moving image recording, the folder in which moving image files are recorded is always the “AVCHD” folder.

  Here, the memory card 200 recorded by the digital video camera 100 is transferred to another digital video camera that has a resolution of 1920 × 1080 and does not support 60 (frames / second) progressive moving image capturing. Consider the case of setting. When the other digital video camera has a resolution of 1920 × 1080 pixels and generates a 60 (frame / second) interlaced moving image file, the newly generated moving image file is stored in the “AVCHD” on the memory card 200. "Additional recording to the folder. Therefore, this digital video camera makes no changes to the “ACVHDEX” folder.

  After that, it is assumed that the memory card 200 is loaded again into the digital video camera 100 and recording is performed. Whether the digital video camera 100 captures an interlaced moving image or a progressive moving image, the digital video camera 100 has a problem with additional recording in the “AVCHD” folder and the “AVCHEX” folder, respectively. Can be implemented. In this way, there is no problem even if the same memory card is shared between the conventional digital video camera and the new digital video camera.

  Note that the digital video camera 100 according to the present embodiment includes the hard disk 180 and the memory card 200 as recording media. However, such a configuration is not necessarily required. For example, an optical disk medium (DVD medium, BD medium, etc.) or a built-in semiconductor memory (flash memory, etc.) may be provided as a recording medium.

[2. Embodiment 2]
In the first embodiment, the example in which the present invention is applied to a digital video camera has been described. The present invention can also be applied to a BD recorder and a DVD recorder. The present invention can be applied to a recording apparatus capable of recording a moving image file.

  Hereinafter, a BD recorder will be described as an embodiment of the present invention.

  FIG. 5 is a block diagram showing the configuration of the BD recorder 500 according to the present embodiment.

  The configuration of the BD recorder 500 according to the present embodiment is similar to the configuration of the digital video camera 100 according to the first embodiment. However, the BD recorder 500 does not include components related to the optical system of the digital video camera 100 (for example, the optical system 110, the lens driving unit 120, the image sensor 130, the ADC 140), the microphone 160, and the speaker 270. On the other hand, the BD recorder 500 is provided with a tuner 510 that receives signals from an antenna and a cable. Note that the display monitor 220 does not have a function of displaying an image, but merely has a function of displaying setting information of the BD recorder 500 and the like.

  In the following, the same components as those of the digital video camera 100 shown in FIG. 1 of the BD recorder 500 are denoted by the same reference numerals, and the description thereof is omitted.

  The digital video camera 100 according to the first embodiment itself generates moving image data.

  The BD recorder 500 according to the present embodiment acquires captured moving image data from a digital video camera or a memory card 200 connected to the IEEE 1394 terminal 230 or the USB terminal (not shown) of the BD recorder 500. The BD recorder 500 according to this embodiment identifies whether the acquired moving image data is interlaced moving image data or progressive moving image data. In accordance with the identification result, the BD recorder 500 copies the moving image data to a specific folder of another recording medium such as a Blu-ray disc loaded in the HDD 180 or the BD drive 300.

  In the following description, an example in which a moving image file is dubbed from the digital video camera to the memory card 200 via the card slot 190 will be described. However, this is an example. The moving image file to be dubbed may be stored on the Blu-ray disc or may be stored on the built-in HDD 180. Also, the recording medium of the dubbing destination is arbitrary.

  FIG. 6 is a flowchart for explaining the moving image recording operation by the BD recorder 500 according to the present embodiment.

  The user can set the BD recorder 500 to the dubbing mode by operating a mode change button that constitutes a part of the operation unit 210 (step S200). When the dubbing mode is set, the controller 160 of the BD recorder 500 waits until the user operates a dubbing start button constituting a part of the operation unit (step S210).

  When the dubbing start button is operated by the user, the controller 160 determines whether the moving image file is a progressive moving image file (60p) or a moving image file of a format other than that (other than 60p). (Step S220). The “other than 60p” is, for example, a moving image file of the interlace method or the 24 (frame / second) progressive method described in the first embodiment.

  This will be described in more detail. The controller 160 determines the format of the moving image file (60p or other) based on management information provided accompanying the moving image file. The management information may exist on the recording medium or the memory card 200 in the digital video camera as a management information file different from the moving image file, or may exist as, for example, the top metadata of the moving image file. Good. The management information includes information indicating that the moving image file is, for example, a progressive method of 60 frames / second. The management information only needs to include information indicating the frame rate and either the progressive method or the interlace method.

  Note that the resolutions of the moving image files at this time may all be the same, or may be 1920 × 1080 pixels.

  If it is determined that the video file is a progressive video file, the controller 160 records the video file stored in the digital video camera in the “AVCHDEX” folder on the memory card 200 (S230). On the other hand, if the controller 160 determines that the video file is an interlace video file, the controller 160 records the video file stored in the digital video camera in the “AVCHD” folder on the installed memory card 200 (step S240). ).

  Note that it is desirable that the file groups arranged under the “AVCHD” folder and the “AVCHDEX” folder in the first and second embodiments have the same format. This is because there is almost no need to change the playback operation of both folders.

[3. Embodiment 3]
In the first and second embodiments, a progressive moving image file (60p) is different from a moving image file other than 60p (for example, an interlaced moving image file, 24 (frame / second) progressive moving image file). It was decided to record in a folder.

  However, this is an example. Data of an image format that has been supported so far and data of an image format that will be supported in the future by standardization or the like may be recorded in different folders. As an image format to which support is added in the future, in addition to a progressive image, for example, a 3D (Dimension) method, a high-speed photographing method such as 120 frames / second, and a super high-definition method using 4K × 2K images can be cited.

  More specific description will be given below. In this embodiment, the BD recorder 500 described in the second embodiment is used for description. The contents are the same as those described in the first embodiment or the second embodiment except for points specifically mentioned.

  In this embodiment, the controller 160 holds in advance a format table in which information indicating at least one moving image format supported so far is described. Table 1 shows an example of the format table.

  For example, “480i (60i)” in the first row indicates that the number of pixels in the vertical direction is 480 and that the moving image is an interlaced moving image of 60 (field / second). In addition, “1080p (24p)” in the fifth row indicates that the number of pixels in the vertical direction is 1080 and that the video is a progressive video image of 24 (frames / second). Assume that the format table in Table 1 is written in the nonvolatile internal memory of the controller 160 at the time of shipment of the BD recorder 500, for example.

  FIG. 7 is a flowchart for explaining the moving image recording operation by the BD recorder 500 according to the present embodiment. In FIG. 7, step S300 is provided instead of step S220 of FIG. Since others are the same, description is abbreviate | omitted.

  In step S300, the controller 160 identifies the format of the moving image file based on management information provided along with the moving image file. Then, the controller 160 determines whether or not the format of the moving image file is described in the format table.

  When the format of the moving image file is not included in the formats described in the table, that is, when the format of the moving image file is not a format supported so far, the process proceeds to step S230. For example, when the format of the moving image file is 60p, 3D format, or 4K2K format, the process proceeds to step S230.

  In step S230, the controller 160 records the moving image file stored in the digital video camera in the “AVCHEX” folder on the attached memory card 200 (step S230).

  On the other hand, when the format of the moving image file is included in the formats described in the table, that is, when the format of the moving image file is a format that has been supported so far, the process proceeds to step S240. In step S240, the controller 160 records the moving image file stored in the digital video camera in the “AVCHD” folder on the attached memory card 200 (step S240).

  According to the above-described processing, an image format file that has been supported so far and an image format file to which support will be added in the future by standardization or the like are recorded in different folders. Therefore, it is possible to prevent the conventional reproducing apparatus from reproducing erroneously. In the conventional playback device, it is assumed that a rule for referring to the “AVCHD” folder immediately below the folder “PRIVATE” is predetermined by the AVCHD standard.

  FIG. 8 shows details of the AVCHDEX folder recorded by the processing shown in FIG. 7 of the present embodiment. For example, the moving image file is stored in the lower “STREAM” folder in FIG. 8 (for example, 00000.mts, 00001.mts). In the “PLAYLIST” folder, there is a playlist (PL) “00000.MPL” for 60p, a playlist (PL) “00001.MPL” for 3D, and a playlist (PL) “00002.MPL” for 4k2k. It is shown. The play list defines the playback method and playback order of the moving image file.

  The version number (Ver. 2.0 to 2.2) in FIG. 8 indicates the version number of the corresponding AVCHD standard. Since the version number is attached to each playlist, the playback device can play back only the playlist with the version number that can be supported by the playback device by referring to the version number. For example, assume a playback apparatus that supports 3D data playback but does not support 4K2K data playback. This playback device can recognize that the device itself corresponds to the version by referring to the version number associated with the 3D data. On the other hand, when the playback device refers to the version number associated with 4K2K data, it can recognize that the device does not support that version. As a result, the playback apparatus plays back only the version of data that it can handle. In other words, this reproducing apparatus reproduces only data that can be appropriately reproduced by itself. In this way, a version number is assigned each time a standard is extended, and a version number is assigned to each data type, so that even if a new standard is expanded in the future, a new folder corresponding to that standard will be created. Even if it is not provided, an appropriate file can be reproduced for each reproduction apparatus.

  In the present embodiment, a version number is assigned to each playlist. However, such a configuration is not necessarily required. Any identifier that can identify the attribute of data such as 3D data or 4K2K may be used. Further, the version number and the identifier need not be attached to the playlist file, and may be attached to other files.

  Also, some conventional playback devices that refer only to the AVCHD folder do not refer to any version number associated with the playlist.

  In the first to third embodiments, the interlaced moving image file and the progressive moving image file are recorded in different folders. However, such a configuration is not necessarily required. If each moving image file can be identified by, for example, different file extensions, the interlaced moving image file and the progressive moving image file may be stored in the same folder. For example, the extension of an interlaced video file is MTS, and the extension of a progressive video file is 60p or ETS. At this time, a playback apparatus that only supports playback of interlaced video files cannot recognize video files with an extension of 60p or ETS. By configuring in this way, it is possible to prevent erroneous reproduction even if the stored folders are not different.

  However, even in this case, management information such as the shooting time order for both image files is not recorded between the interlaced moving image file and the progressive moving image file. That is, both moving image files have no reference relationship with each other. At this time, for example, when the moving image data is composed of a plurality of management files and moving image stream files, both the plurality of management files and the moving image stream files are renamed and / or expanded as necessary. It will coexist in the same folder by changing the child.

  The processing described in the flowcharts of FIGS. 3, 6, and 7 related to the above-described embodiments has been described as being mainly executed by the controller 160. The controller 160 can be realized by a single semiconductor chip or IC such as a digital signal processor (DSP) in which the processes shown in the flowcharts above are programmed in advance. For example, a computer and software (computer program) Can also be realized. In this computer program, instructions for executing the procedures described in the flowcharts shown in FIGS. 3, 6, and 7 are described. The computer that has executed the computer program executes the processes described in the flowcharts shown in FIGS. 3, 6, and 7. The computer program can be recorded on a recording medium such as a CD-ROM and distributed as a product to the market, or can be transmitted through an electric communication line such as the Internet.

  The present invention can be applied to a recording apparatus such as a digital still camera, a digital video camera, a BD recorder, or a DVD recorder. Further, the present invention can be applied to a playback apparatus that can play back both a progressive moving image and an interlaced moving image. Furthermore, the present invention can also be realized as a computer program for operating the above-described recording apparatus and reproducing apparatus.

DESCRIPTION OF SYMBOLS 100 Digital video camera 110 Optical system 120 Lens drive part 130 CCD image sensor 140 A / D converter 150 Image processing part 160 Controller 170 Buffer 180 Hard disk drive (HDD)
190 card slot 200 memory card 210 operation unit 220 display monitor 230 IEEE1394 terminal 240 acquisition unit 260 microphone 270 speaker 300 BD drive

Claims (11)

An acquisition unit for acquiring moving image data and management information;
A controller that refers to the management information and determines whether the moving image data is a predetermined progressive method or a method other than the predetermined progressive method;
A recording device comprising: a recording unit that records the moving image data in different folders on a recording medium according to a determination result.   The recording apparatus according to claim 1, wherein the predetermined progressive method is a 60-frame / second progressive method. Methods other than the predetermined progressive method include an interlace method and a progressive method of 24 frames / second,
The recording apparatus according to claim 1, wherein the management information includes information indicating a frame rate and a scanning method.   When the determination result indicates that the moving image data is the predetermined progressive method, the recording unit records the moving image data in a folder in which only the moving image data of the predetermined progressive method is recorded. The recording apparatus according to claim 3. An imaging unit that images a subject and outputs an image signal of the subject;
An image processing unit that generates moving image data based on the image signal, wherein the image processing unit generates one of progressive moving image data and interlaced moving image data. The recording device described in 1.   The recording apparatus according to claim 5, wherein the image processing unit generates moving image data having the same resolution regardless of the progressive method and the interlace method.   The recording apparatus according to claim 6, wherein the image processing unit generates moving image data having a resolution of 1920 × 1080 pixels. An acquisition unit for acquiring moving image data and management information;
Whether or not a table in which information indicating at least one format is described is stored and the format of the moving image data corresponds to the at least one format described in the table with reference to the management information and the table A controller for determining whether
A recording device comprising: a recording unit that records the moving image data in different folders on a recording medium according to a determination result. A playback device for playing back moving image data recorded on a recording medium,
The recording medium is provided with a first folder storing first moving image data of a predetermined progressive method and a second folder storing second moving image data of a method other than the predetermined progressive method. And
An acquisition unit that reads the first moving image data from the first folder and reads the second moving image data from the second folder;
A controller for selectively displaying the acquired first moving image data and the second moving image data;
An operation unit that receives an instruction to select one of the first moving image data and the second moving image data from a user, and the controller includes the first moving image data selected via the operation unit. And a playback device for playing back one of the second moving image data. When the first moving image data is selected, the controller causes the acquisition unit to refer to the first folder, reads the first moving image data, and reads the first moving image data. Play and
When the second moving image data is selected, the controller causes the acquisition unit to refer to the second folder to read the second moving image data, and the read second moving image data The playback device according to claim 9, wherein A computer program executed by a computer of a recording apparatus,
The computer program is for the computer.
Obtaining moving image data and management information;
Referring to the management information, determining whether the moving image data is a predetermined progressive method or a method other than the predetermined progressive method;
And recording the moving image data in a different folder on a recording medium according to a determination result.

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