JP2006139843A - Recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to easily recognize data specified in a play list. <P>SOLUTION: This apparatus is provided with: a recording means recording an image file including image data in a recording medium; a play list processing means generating the play list indicating a reproduction order of the image data recorded in the recording medium; and an addition means adding link information indicating being specified by the play list to the image file referred in the play list generated by the play list processing means out of image files recorded in the recording medium. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording apparatus, and more particularly to an apparatus for recording information data such as image data.

  Conventionally, an apparatus for recording image data or the like on a disk medium such as a DVD is known.

  This type of device has a non-destructive editing function by generating a playlist that specifies the playback order of image data of a plurality of titles recorded on a disc and playing back the image data using this playlist. Has also appeared (see, for example, Patent Document 1).

Further, when the original title specified in the playlist is deleted from the disc, the playlist is deleted or the contents of the playlist are rewritten accordingly.
JP 2002-279765 A

  When deleting the original title from the disc in the above-mentioned disc recording device, the device having the playlist function as described above can detect that the title is specified in the playlist, and inform the user to that effect. I can inform you.

  However, if the data recorded on this disc is to be deleted using a disc drive such as a PC, the playlist function is not available, so the title to be deleted is the data specified in the playlist. Cannot be discriminated, and there is a problem that it is deleted regardless of the title specified in the playlist.

  An object of the present invention is to solve such problems and make it easy to recognize data specified in a playlist.

  The present invention provides a recording means for recording an image file including image data on a recording medium, a playlist processing means for generating a playlist indicating the reproduction order of the image data recorded on the recording medium, and a recording on the recording medium. And adding means for adding link information indicating that the image file is referred to by the playlist to the image file referred to in the playlist generated by the playlist processing means. .

  According to the present invention, it is possible to easily detect whether or not the data recorded on the recording medium is specified in the playlist, and to prevent accidental deletion.

  An example of a video camcorder capable of recording and reproducing moving images and still images on a recording medium will be described.

  Here, the characteristic functions and usage methods related to the present invention will be mainly described.

  FIG. 1 shows the configuration of the camcorder of this embodiment. The camcorder body is 100 surrounded by a broken line. In addition, a first recording medium 101 such as a DVD for mainly recording moving images and a second recording medium 102 such as a memory card for mainly recording still images can be attached to and detached from the main body. . The main body can also be connected to the PC 103, and data can be transferred bidirectionally between the main body and the PC.

  Inside the main body, 1 is an optical member such as a lens, shutter, and diaphragm, 2 is an image sensor such as a CCD or CMOS that captures a subject image input by the optical member, 3 is a microphone that inputs sound, and 4 is from the image sensor 2. Signal processing means for performing image processing and sound processing so that the output image data and sound data captured by the microphone 3 are suitable for recording or reproduction, 5 is a CPU that controls the entire operation, 6 is an image and sound, and CPU 5 Is a memory means such as a DRAM for temporarily storing data for various processing, 7 is a memory control unit for controlling memory address control and data transfer for reading and writing data to the memory means, and 8 is A disk drive device that reads / writes data from / to a recording medium 1 such as a DVD and controls the rotation of the disk, 9 is a memory card A memory card controller for controlling memory address control and data transfer for reading and writing data with respect to the recording medium 2, 10 for a communication interface 20 such as a USB for connection with a PC, an LCD mounted on the main body, etc. A display control unit 21 for controlling the transfer of data to the display device, an audio output means such as a speaker for reproducing audio mounted on the main body, and 12 for driving the speaker. Audio drive means such as DA and amplifier, 22 is an operation means for giving operation instructions to the main body such as a mode dial and a shutter button, and 13 is an interrupt signal and various switches for the CPU 5 to input from the operation means. An operation interface means for communicating the state, 23 is an LED for prompting a warning to the operation, and 14 is LE 23 is a driving means.

  Other than the above are the main means and members related to the present invention, but an actual video camcorder is composed of various members other than those described above, but detailed description thereof is omitted here.

  First, the creation of a playlist file that describes the playback order of files will be described.

  Normally, the playback order of files is determined and created during playback or editing. For example, it is possible to create a play list that realizes a so-called slide show in which explanation audio is played together for a presentation, or a playback file is automatically switched every few seconds.

  As shown in FIG. 3, the playlist is a management file in which files corresponding to the reproduction order and time are associated.

  Here, for example, a simple playlist when a plurality of still images are recorded on a memory card will be described as an example. FIG. 2 is a diagram showing a state of a file recorded on the memory card. Here, it is assumed that 16 still images are recorded as shown in FIG.

  Then, it is assumed that a simple playlist file 1 is created in which two of these still images are reproduced for 10 seconds. Here, it is assumed that the still image is a JPEG image generally used in a digital camera and recorded in the EXIF format. The EXIF format can record incidental information such as shooting conditions together with image data. In the EXIF standard, a user area is provided as incidental information in addition to shooting conditions. In the user area, information uniquely defined by the user or the device can be recorded.

  This embodiment is characterized in that link-related information is stored in a content file. In this embodiment, the link-related information is described in the EXIF user area of the JPEG file that is the content. Since there are many examples of recording vendor-specific information in the EXIF private area of the still image JPEG file format, detailed description of the EXIF structure and the like is omitted here.

  When the target still image file is associated here, the target still image file is opened, and information indicating that it is associated with the playlist is added to a predetermined area, here, the user area of EXIF.

  That is, the link information here has the number of internal links of 1 for the file 1 as shown in FIG. The file 2 also has 1 internal link.

  The above is the case where the link is in the card and there is no limit on the number of links.

  Next, consider the case of deleting the file created as described above. Here, it is determined whether or not deletion is possible depending on whether or not the number of links is zero.

  This will be described with reference to the flowchart of FIG.

The operator instructs one of the seven unlinked files with the operation means 22 or the like. (S1) Here, IMG003. jpg shall be deleted. IMG003. OPEN the jpg file and read the link data of the EXIF user area. (S2) Then, the number of links is confirmed (S3). Since it is 0, it is deleted as it is. (S4)
Linked file, IMG001. A case where jpg is deleted will be described.

First, the file to be deleted is designated as described above. (S1) and IMG001. OPEN the JPG file and read the EXIF user area link data. (S2) However, the number of links is checked (S3). In this case, since the number of links is 1, a warning is issued (S5). The operator knows that the file is used (linked) in the playlist by the warning. . When the operator's instruction is determined (S6) and the link is deleted with the knowledge, the CPU 5 opens the playlist file, edits and updates the playlist (S7), specifically IMG001. Delete JPG from the list. Then, the playlist file is closed and the content file IMG001. Delete jpg. (S8)
In this embodiment, link information indicating that the image file is specified in the playlist is recorded in this way. Therefore, even when the image file is deleted on a PC or the like that does not have a playlist function, the link information is recorded. It becomes possible to easily recognize whether or not the file is specified by the playlist.

(Modification 1)
Next, recording link information in the card and setting a limit on the number of links will be described. It is assumed that ten still image files are recorded in the same manner as described above. The case where the number of links is limited to two will be described.

  Already as playlist 1, IMG001. JPG, IMG002. JPG, IMG003. It is assumed that the reproduction time of each content is registered as 10 seconds in the order of JPG.

  Next, play list 2 is registered. This is IMG001. Play JPG for 10 seconds, the other 9 are IMG002. From JPG to IMG010. Suppose you register in JPG 2 seconds. In that case, firstly, a file of the playlist 2 is newly created, and as shown in FIG. From JPG to IMG010. 10 contents are registered in the order of JPG, and IMG001. Only jpg is reproduced for 10 seconds, and others are registered as 2 seconds.

  Next, IMG001. The link number counter in the link information of each content is updated in order from JPG. Here, as shown in FIG. 6, since all the contents have fewer than three links, the update is completed as it is.

  Next, creation of playlist 3 is attempted. This will be described with reference to FIG.

  IMG003. JPG, IMG004. JPG, IMG005. It is assumed that the playback is performed every 10 seconds in the order of JPG. First, a playlist 3 file is newly created (S20), and IMG003. JPG, IMG004. JPG, IMG005. Temporary registration is performed as shown in FIG. 7 for 10-second playback in the order of JPG (S21). Next, IMG003. The link number counter in the link information of each content is read in order from JPG (S22). Then, it is determined whether or not the link is the upper limit value for each content (S23). Here, IMG003. Since JPG is already registered in playlists 1 and 2, the number of links is 2. Therefore, since link limit 2 is exceeded when registration is made in playlist 3, linking is impossible. Therefore, IMG003. A warning is given to the operator that the JPG cannot be linked to prompt judgment (S24).

  Therefore, the operator can perform IMG003. IMG004 excluding JPG. JPG, IMG005. It is instructed whether to register as a playlist 3 using only JPG or cancel the creation of the playlist 3 itself.

  The CPU 5 determines the instruction (S25), and IMG003. Re-register as playlist 3 except for JPG (S28), and continue with IMG004. JPG and IMG005. The link number counter in the link information of each JPG content is updated as shown in FIG. In this case, all the contents have less than 3 links.

  Next, it is determined whether or not content is additionally registered in the playlist (S29). If there is content to be added, the process proceeds to S21.

  If the creation of the play list 3 itself is canceled in S25, the link information of other contents is not updated, and the play list 3 is not saved and discarded (S26).

  Next, consider the case of deleting the file created as described above. This will be described with reference to FIG. Here, it is determined whether or not to delete depending on whether or not the number of links is zero. Since deletion of the unlinked file is the same as that in the above-described embodiment, here, the number of links is two or more IMG003. A case of deleting JPG will be described.

  IMG003. The operator instructs the deletion of jpg with the operation means 22 or the like (S1). Subsequently, IMG003. OPEN the jpg file and read the link data of the EXIF user area (S2). Then, it is confirmed whether or not the number of links is 0 (S3). Here, since the number of links is 2, a warning as shown in FIG. 10 is urged (S5). The operator will be warned that this file is being used (linked) in the playlist. In response to the instruction from the operator (S6), the CPU 5 OPENs all the existing playlist files in response to this instruction, and IMG003. Search for a playlist referring to JPG. As a result, in this case, the playlist 1 (FIG. 4) and the playlist 2 (FIG. 5) are IMG003. Since it can be seen that JPG is referenced, each playlist is edited and IMG003. JPG is deleted from the list (S7). Then, the playlist file is CLOSEd, and the content file IMG003. jpg is deleted (S8).

  In the above example, since content was added by editing the playlist, the link counter in the content was updated in an increasing direction. However, of course, content may be deleted from registration by editing the playlist. Deleting the registration on the playlist does not directly delete the content. Therefore, the content whose content has been deleted from the registration by editing the playlist is updated in a direction to decrease the number of link counters in the content file. As a result, consistency between the playlist and the number of links in the content is maintained.

  In the above embodiment, the link information is described in the EXIF user area as an example of a JPEG still image, but this is not limited to the EXIF user area. In the case of another still image format, a separate link information storage area may be prepared. The same applies to moving images.

  In addition to the user area, an area for storing link information in the content in advance may be provided as a standard. If it does so, the compatibility which can be used even if it is a product of another company will be ensured between the products in conformity with the standard.

It is a block diagram of the camcorder in the embodiment. It is a figure which shows the mode of the data recorded on a memory card. It is a figure which shows the example of a play list. It is a figure which shows the example of link information. It is a figure which shows the example of a play list. It is a figure which shows the example of link information. It is a figure which shows the example of a play list. It is a figure which shows the example of a play list. It is a figure which shows the example of link information. It is a flowchart which shows deletion instruction | indication operation | movement. It is a flowchart which shows a play list creation process.

Claims (5)

Recording means for recording an image file including image data on a recording medium;
Playlist processing means for generating a playlist indicating the playback order of the image data recorded on the recording medium;
Of the image files recorded on the recording medium, link information indicating that the playlist is designated by the playlist is added to the image file referenced in the playlist generated by the playlist processing means. A recording apparatus comprising the adding means. A deletion instruction means for arbitrarily selecting an image file from a plurality of image files recorded on the recording medium and instructing deletion of the selected image file;
2. The recording according to claim 1, further comprising control means for determining whether or not to delete the selected image file based on link information added to the image file selected by the deletion instruction means. apparatus.   When the selected image file is not referenced from any playlist, the control means deletes the selected image file from the recording medium and is referenced from any playlist 3. The recording apparatus according to claim 2, wherein deletion is prohibited.   The recording apparatus according to claim 1, wherein the link information indicates a number of playlists referring to the image file. A recording step of recording an image file including image data on a recording medium;
A playlist processing step for generating a playlist indicating a reproduction order of the image data recorded on the recording medium;
Among the image files recorded on the recording medium, link information indicating that the playlist is designated by the playlist is added to the image file referenced in the playlist generated by the playlist processing step. A recording method including an additional step.

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