JP2006196086A - Play list preparation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for efficiently preparing a play list of all video files in a DVD. <P>SOLUTION: The play list preparation method comprises: a step in which attribute data of a part or all video files in a preserving apparatus is collected; a step in which the video file is arranged in the prescribed order based on the attribute data; a step in which a video time axis for setting a time of reproduction and stop of the arranged video file is generated; a step in which a tag for reproduction or stop of the video file is set on the video time axis; a step in which the tags are collected in the prescribed order and the play list is prepared; and a step in which the play list is preserved in the preserving apparatus. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method of creating a playlist for playing and stopping a video file stored in a storage device such as a DVD in the DVD-VR format.

  With the widespread and development of digital imaging devices and optical storage media (eg digital video cameras, digital cameras, burn-in optical disk drivers, DVDs, etc.), digital video capture, recording, storage, etc. are performed at any time with simple operations. Can now. The recorded video is often edited later, and includes, for example, erasing unnecessary portions, synthesizing a plurality of videos, and changing the playback order. These editing operations are generally performed by a video editing program in a computer.

  The large capacity of DVD is very suitable for storing high quality video. However, the time required for writing is significantly longer than that of CD. Moreover, it is rare that the user usually needs a large capacity of the entire DVD. Therefore, if you want to save more videos on the DVD, or edit existing content, you have to re-edit and burn the DVD. In general, when a DVD is newly edited and burned, a considerable amount of time is required. This is because all the files in the DVD are input to the computer, edited in the computer, and then rewritten. In order to solve this problem, formats of DVD-VR and DVD + VR (hereinafter referred to as “DVD ± VR” together) have been developed.

  The DVD ± VR format can provide an editable playlist. Therefore, the user can determine the playback order of the video files in the DVD and perform playback or editing. Even a home DVD deck has a simple playlist editing function, but many users want a DVD ± VR editing program with more powerful functions. According to such software, the user can select a video file in advance from the DVD and set a plurality of pairs of start and end tags in the video file. A playlist can then be created by collecting all tags. As a result, the image of the portion between the start and end tags that make each pair can be reproduced continuously.

  However, if the user wants to create a playlist for all videos on the DVD, the above steps must be repeated. The number of times the above steps are repeated is at least equal to the number of videos in the DVD. Such a complicated and time-consuming step impairs the user's willingness. Therefore, a method and system that can efficiently create a playlist of all videos in a DVD is desired.

  An object of the present invention is to provide a method and system capable of efficiently creating a playlist for video data in the DVD ± VR format.

  Therefore, as a result of intensive research in view of the prior art, the present inventor has arranged video files desired to be reproduced based on arbitrary attribute data in a predetermined order, and a video time axis for setting the times of reproduction and stop To generate the tag, collect the tags in the predetermined order to create a playlist, and further to the knowledge that the above problem can be solved by a playlist creation method of storing the playlist in the storage device, Thus, the present invention has been completed.

That is, according to the invention described in claim 1,
Collecting attribute data of some or all video files in the storage device;
Arranging the video files in a predetermined order based on the attribute data;
Generating a video time axis for setting the playback and stop times of the arranged video files;
Placing a tag for playing or stopping the video file on the video time axis;
Collecting the tags in the predetermined order to generate a playlist; storing the playlist in the storage device;
A playlist creation method is provided.

  The playlist creating method according to claim 2 is characterized in that the attribute data is a file size code, a file name code, a broadcast time code, or a last update time code of the video file.

  The playlist creating method described in claim 3 is characterized in that the storage device includes a DVD ± VR format DVD, an SD memory card, or a Blu-ray disc.

According to the invention of claim 4,
Collecting attribute data of some or all video files in the storage device;
Arranging the video files in a predetermined order based on the attribute data;
Generating a video time axis for setting the playback and stop times of the arranged video files;
Placing a tag for playing or stopping the video file on the video time axis;
Collecting the tags in the predetermined order and concatenating the video files held on the video time axis;
A video file editing method is provided.

According to the invention of claim 5,
A capture module that collects attribute data for some or all video files in the storage device;
A video time axis generation module for generating a video time axis for setting the playback and stop times of the video file arranged in a predetermined order based on the attribute data;
An installation module for installing a tag for playing or stopping the video file on the video time axis;
A playlist generating module for collecting the tags in the predetermined order and generating a playlist;
A storage medium is provided.

  According to the playlist creation method and system according to the present invention, a playlist can be efficiently created for data of an arbitrary video file in a DVD by a simple operation.

  The present invention provides a method for creating a playlist of video files stored in a storage device, comprising collecting attribute data of some or all video files in the storage device; Arranging the video files in a predetermined order, generating a video time axis for setting the playback and stop times of the arranged video files, playing the video file on the video time axis, or The method includes a step of installing a tag for stopping, a step of collecting the tags in the predetermined order to generate a playlist, and a step of storing the playlist in the storage device.

  The time before and after these steps are executed is not necessarily limited to the above. For example, the step of generating a video time axis and the step of arranging video files may be performed first.

  The storage device is generally a DVD deck storing a DVD ± VR format DVD disc, but is not necessarily limited to this, and may be any medium that can read and write a large capacity. For example, a Blu-ray disc, an SD memory card, a hard disk, or a combination thereof is preferably used. Further, the number and the number of these media are not limited. For example, a system in which video data is read into a storage device by batch or replacement of a plurality of DVD discs may be employed.

  The attribute data of the video file can include, but is not limited to, a file name code, a file size code, a broadcast time code, or a last update time code. Further, when arranging video data based on such attribute data, it is possible not only to sort in ascending or descending order with respect to one or a plurality of attribute data but also to change the order so as to obtain an arrangement desired by the operator. However, it can be said that it is most efficient from the viewpoint of working time to determine the arrangement only by sorting in a batch with arbitrary attribute data.

  The video time axis represents a video file stored in the storage device, and is a virtual time axis for setting playback and stop times of video files arranged in a desired order.

  The tag is information for setting the playback time and stop time of the video file desired to be played on the video time axis. The tag can be set at an arbitrary timing while the operator reproduces the video file, or can be set by specifying a predetermined reproduction time by a numerical value. In addition, when a tag is provided on the video time axis, there may exist a video file in which one video file is reproduced a plurality of times, or on the contrary, no video file is reproduced at all.

  The created playlist is stored in a storage area in the storage device. Such a storage area may be, for example, on a DVD disk or on another storage device in the DVD deck. The playlist is preferably stored in the rewritable area so that it can be updated any number of times. It is also preferable that the playlist can be stored in the storage device even in a provisional state in the middle of creation, and the playlist can be completed at a later date by continuing work.

  The present invention also provides a system for generating a playlist. The system includes a processor unit, a buffer coupled to the processor unit, a storage device coupled to the buffer, a user interface coupled to the processor unit, and a display device.

  The buffer stores the playlist and video file data for a while. The storage device stores video files and playlists. The user interface includes a video time axis representing a video file arranged based on the attribute data, and the user can place a tag on the video time axis by the user interface. The processor unit collects all the tags and generates a playlist in the buffer. The storage device includes a DVD ± VR format DVD, a Blu-ray disc, an SD memory card, or a hard disk.

  The present invention also provides a video file editing method. That is, collecting attribute data of some or all video files in the storage device, arranging the video files in a predetermined order based on the attribute data, and playing and stopping the arranged video files A step of generating a video time axis for setting a time; a step of installing at least a pair of tags on the video time axis; and a portion other than between the paired tags that collects the tags in the predetermined order. A video file editing method including the step of deleting and concatenating the video files held on the video time axis.

  The present invention also provides a storage medium. That is, a capture module that collects attribute data of some or all video files in the storage device, and a video time axis that sets the playback and stop times of the video files arranged in a predetermined order based on the attribute data A video time axis generating module to be generated, an installation module for setting a tag for playing or stopping the video file on the video time axis, and a playlist for generating the playlist by collecting the tags in the predetermined order And a generation module.

  The storage device includes a DVD ± VR format DVD, CD-RW, DVD + RW, DVD-RW, Blu-ray disc, hard disk, flash memory, or the like.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples or drawings. FIG. 1 is a flowchart of a playlist creation method according to the present invention.

  In step 101, the attribute data of some or all video files stored in the storage device is captured. The attribute data is, for example, the last update time code.

  In step 102, the captured attribute data is arranged based on its contents. The attribute data includes various information related to the video file in the storage device. Thus, the array can be completed based on any information. In the embodiment, since data is arranged based on the last update time recorded in the last update time code, when this is set in ascending order, the old data is arranged in order.

  After the arrangement, a video time axis is generated in step 103. In the present embodiment, the video time axis represents each video file stored in the storage device. Then, all the video files stored in the storage device are all included in the video time axis and arranged according to the attribute data. By virtually permuting all video files desired to be reproduced on the concept of video time axis, a plurality of video files can be edited in one operation. Therefore, it can be said that this method provides a simple operation for the user.

  Subsequently, in step 104, a plurality of tags are provided on the video time axis, and the video file is edited. In this case, all video files can be edited simply by providing a plurality of tags on the video time axis. In an embodiment, the tags are installed in pairs and the portion between each paired tag is reserved.

  By collecting these tags, the user can record the desired playback order. After collecting all tags and creating a playlist in step 105, the playlist is stored in a storage device in step 106.

  In the present embodiment, the storage device includes a DVD ± VR format DVD, but is not limited to this, and a Blu-ray disc having a playlist function, an ST memory card, or other storage device can be used. .

  The tags described above can be automatically installed in addition to being installed by the user. As shown in the flowchart in FIG. 2, after creating the video time axis, in step 201, the scene conversion tag is installed on the video time axis using the detection means. Scene conversion detection techniques are disclosed in US Patent No. 10 / 303,026 "Method for shot change for video clip" and US Patent No. 10 / 211,574 "Method for detecting scene change in compression". Therefore, it will not be described in detail here.

  After completing the installation of the scene conversion tag, in step 202, it is confirmed whether or not the tag to be installed is appropriate. In step 203, an appropriate tag is selected.

  Installation of the above-described scene conversion tag for automatic installation is not necessarily required, and can be selected according to the needs of the user.

  The present invention also provides a system for generating a playlist. FIG. 3 shows a block diagram. The system includes a processor unit 30, a storage device 31, a buffer 32, a user interface 33, and a display device 36. In this embodiment, it is assumed that the storage device 31 includes three video files. That is, the first video 310, the second video 311, and the third video 312. However, the number of video files is an example, and any number of video files in a range not exceeding the capacity of the storage device is included in this.

  The buffer 32 is coupled to the processor unit 30 and stores the attribute data 320 of each video file in the storage device 31. For example, the data includes a file size code, a file name code, a broadcast time code, or a last update time code, but is not limited thereto. In other embodiments, the data may include other data of the video file.

  The video time axis 34 can be generated by the data in the buffer 31. The processor unit 30 processes these data and generates a video time axis 34. A video time axis 34 is included in the user interface 33 and represents all video files in the storage device 31. The arrangement of the video file in the video time axis 34 can be determined based on the data 320. In the embodiment, the video files are arranged according to the last update time, but may be arranged by other attribute data. For example, a file name code in which a file name is recorded. Further, the user may arbitrarily arrange the video files in the video time axis and determine the order as necessary.

  The user interface 33 allows the user to provide at least a pair of start and end tags on the video timeline 34. In the embodiment, the tag is set by a mouse or a cursor controlled by a touch panel. The start tags are the figure numbers 340, 344, 346, and 348 in the drawing. Also, other methods such as voice control may be used.

  Each start tag has a corresponding end tag. These end tags are the figure numbers 341, 345, 347, and 349 in the drawing. According to FIG. 3, the portion between the start tag and the end tag that make up each pair is highlighted with a bold line. The emphasized part is a part for ordering in addition to the playlist.

  In other embodiments, the system according to the invention may include a sensing means 35. The detection means 35 is for detecting a scene conversion time point in each video file, and a scene conversion tag is provided on the video time axis 34. In FIG. 3, two scene conversion tags 342 and 343 are provided on the video time axis 34. The part in between is an unnecessary part. Whether or not each scene conversion tag is appropriate and whether or not a portion between the scene conversion tags is a portion to be added to the playlist is determined by the user via a user interface 33 or the like.

  The display device 36 is coupled to the processor unit 30 to display the user interface 33. The display device 36 includes a CRT monitor, an LCD display device, a projector, a plasma display device, or other devices that can display a video time axis and a tag.

  The playlist records the playback order of video files in the storage device 31. Therefore, such a list is created by collecting all tags in the video time axis 34. The created playlist 321 is temporarily stored in the buffer and then written to the storage device 31. When the user reproduces and views the video file in the storage device 31 according to the order of the playlist, it can be reproduced according to the playlist simply by decoding the information regarding all the records in the playlist 313.

  In the embodiment, the storage device may be a DVD ± VR format DVD, but is not limited thereto. In addition, any storage medium having a playlist function such as a Blu-ray disc or an SD memory card can be applied to the present invention.

  The present invention also provides a video file editing method. The steps disclosed in the flowchart in FIG. 4 are substantially the same as the method described above except that a playlist is not generated.

  In step 405, all unnecessary parts are deleted, and in step 406, the remaining part is connected to the part to be played back to synthesize a new video file.

  In step 401, the data of each video file stored in the storage device is captured. In the embodiment, these data include a file size code, a file name code, a last update time code, or a broadcast time code of a video file. However, in the present invention, various data can be captured, and listing them is merely an explanation, and does not limit the scope of implementation of the present invention.

  In step 402, the captured data is arranged based on the respective codes. Since these codes contain various information related to the video file in the storage device, it is natural that the information can be arranged by any information. In the embodiment, these data are arranged based on the last update time recorded in the last update code. However, in other embodiments, the user can arbitrarily arrange these data as necessary.

  After completing the data arrangement, a video time axis is generated in step 403. The video time axis includes all video files stored in the storage device. That is, all the video files in the storage device are all included in the video time, and all or some of them can be selected and arranged in a predetermined order. The video time axis allows the user to edit a plurality of video files with a single editing operation. Such a method is practical and convenient for the user. That is, as shown in step 404, it is only necessary to provide a pair or more start and end tags on the video time axis for all video files to be edited. The portion between each pair of start and end tags is reserved. In other words, as shown in step 405, other parts are deleted. It is also possible to create a new video file by combining the reserved parts in step 406.

  In the embodiment, the storage device includes a DVD ± VR format DVD. However, the present invention is not limited to such a storage device. For example, any of a Blu-ray disc, a flash memory, and a hard disk can be applied to the present invention.

  Further, the present invention provides a kind of storage medium 50 as disclosed in FIG. The type of the storage medium 50 includes a floppy disk, flash memory, CD, DVD, or RAM. In other words, any device capable of storing data can be applied as the storage medium of the present invention.

  The storage medium 50 includes a plurality of modules. These multiple modules work together to generate playlists for all video files in the storage device. The storage medium 50 includes a capture module 501, a video time axis generation module 502, an installation module 503, and a playlist generation module 504. These modules are computer programs or software modules having specific functions.

  The capture module 501 captures attribute data of each video file stored in the storage device. Based on these attribute data, the video time axis generation module 502 sequentially arranges all video time axes representing the video file. Such an arrangement is based on the information of the video file in these data. Data captured by the capture module 501 includes a file size code, a file name code, a last update time code, a broadcast time code, or the like of a video file. However, in the present invention, various data can be captured, and listing them is merely an explanation, and does not limit the scope of implementation of the present invention.

  In the embodiment, the video arrangement in the video time axis is based on the last update time recorded in the last update time code, which is completed by the user's operation.

  The installation module 503 installs at least a pair of start and end tags on the video time axis. These tags are installed automatically or manually by the user. For example, a tag is set on the scene conversion time using a detection means. The user can also control the cursor with a mouse or other device, and add or delete tags on the video time axis. Finally, when all tags are collected, the playlist generation module 504 creates a playlist and writes it to the storage device.

  In the embodiment, the storage device may be a DVD ± VR format DVD. However, the present invention is not limited to such a storage device. For example, a Blu-ray disc, an SD memory card, etc. can be applied to the present invention.

  The present invention provides a method for easily creating a playlist of video files in a storage device represented by a DVD ± VR format DVD. Such a method is not limited to a DVD and can be used for any media having a playlist function, and can be stored and provided in advance on a media such as a DVD or a deck.

It is a flowchart of the playlist creation method of the present invention. It is a flowchart of a scene conversion detection. It is the block diagram which showed the system of this invention. 3 is a flowchart of a video file editing method according to the present invention. It is explanatory drawing of the storage medium by this invention.

Explanation of symbols

30 processor unit 31 storage device 32 buffer 33 user interface 310 first video 310
311 Second Video 310
312 Third Video 310
313 Playlist 320 Data 321 Playlist 34 Video time axis 340, 344, 346, 348 Start tag 341, 345, 347, 349 End tag 342, 343 Scene conversion tag 36 Display device 50 Storage medium 501 Capture module 502 Video time axis generation Module 503 Installation module 504 Playlist generation module

Claims (5)

Collecting attribute data of some or all video files in the storage device;
Arranging the video files in a predetermined order based on the attribute data;
Generating a video time axis for setting the playback and stop times of the arranged video files;
Placing a tag for playing or stopping the video file on the video time axis;
Collecting the tags in the predetermined order to generate a playlist; storing the playlist in the storage device;
Playlist creation method including   2. The playlist creation method according to claim 1, wherein the attribute data is a file size code, a file name code, a broadcast time code, or a last update time code of the video file.   3. The playlist creation method according to claim 1, wherein the storage device includes a DVD ± VR format DVD, an SD memory card, or a Blu-ray disc. Collecting attribute data of some or all video files in the storage device;
Arranging the video files in a predetermined order based on the attribute data;
Generating a video time axis for setting playback and stop times of the arranged video files;
Placing a tag for playing or stopping the video file on the video time axis;
Concatenating video files reserved on the video time axis by collecting the tags in the predetermined order;
Video file editing method including. A capture module that collects attribute data for some or all video files in the storage device;
A video time axis generation module for generating a video time axis for setting the playback and stop times of the video file arranged in a predetermined order based on the attribute data;
An installation module for installing a tag for playing or stopping the video file on the video time axis;
A playlist generating module for collecting the tags in the predetermined order and generating a playlist;
Including storage medium.

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