KR20070013782A - Method for managing play list in digital video file - Google Patents

Abstract

A method for managing a reproduction list of digital image files is provided to secure a sufficient storage space by dividing recorded title files into titles which are reproduced and titles which are not reproduced, storing the previously reproduced title files in an additional folder or storage region, and deleting the stored title files according to priority when a storage space is insufficient. A control unit stores a title image in a reproduction file storage space when the title image is reproduced, and separately stores a title image in a non-reproduction storage space when the title image is not reproduced(S202,S204). The control unit confirms whether the capacity of a storage space is insufficient when a digital image inputted from the outside is recorded and stored(S206-S210). When capacity of the storage space is insufficient, the control unit deletes the title image stored in the reproduction file storage space, secures the storage space, and newly records and stores the digital image(S214).

Description

How to manage playlists of digital video files {Method for Managing Play List in Digital Video File}

1 is a configuration diagram schematically showing a configuration of a digital video recorder / player to which a playlist management method of a digital video file according to an embodiment of the present invention is applied;

2 is a flowchart illustrating a method of managing a playlist of a digital video file according to an exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating a file list divided into a playback file and a to-play list for the title image.

<Description of Symbols for Main Parts of Drawings>

100: digital video recorder / player 110: tuner

120: Demux 130: audio buffer

132: audio decoder 140: video buffer

142: video decoder 150: data buffer

160: recording / playback unit 170: control unit

172: memory 174: network interface

180: storage 190: key input processing unit

192: remote control

The present invention relates to a method of managing a playlist of a digital video file. More particularly, a title file recorded by a digital video player such as a DVD or DivX is divided into a title that has been played and a title that has not been played and is already played. The present invention relates to a method of managing a playlist of a digital video file in which a title file is stored in a separate folder or a storage area, and then deleted in a priority order when the storage space is insufficient.

As the digital broadcasting started, it became possible to watch high quality and high quality digital broadcasting programs, and to receive or record such digital broadcasting programs through a TV, for example, to record and store a large amount of images. Video recording / reproducing apparatuses are widely used.

However, when a user records a desired broadcast video while watching TV, the user inputs a recording command by operating a remote controller or the like. Accordingly, the video recording / reproducing apparatus provides a transport stream for the broadcast video of the channel to be recorded. Recording to a storage medium such as a DVD or a hard disk (HDD). In addition, the video recording / reproducing apparatus may download a digital video as a DivX file through the Internet, record and store the digital video on a recording medium such as a hard disk (HDD), and then play it back upon a user's request.

At this time, if the capacity of broadcasting video per program is more than 400 megabytes, up to 10 programs are available if the hard disk has 4 gigabytes (GB), and up to 20 programs if the hard disk is 8 gigabytes (GB). There is a limit of capacity that can not record any more than the program.

In addition, when a title is already recorded on the hard disk and its capacity is full, there is a problem that it is not easy to record immediately when there is a broadcast program to be suddenly recorded. Therefore, in order to secure an extra storage space on the hard disk, the user has to find and check broadcast programs and titles stored on the hard disk one by one, and delete the data that is not needed such as already played. .

In order to solve the above problems, the present invention separates the titles that have been played for the recorded title files into the titles that are not played, and stores the already reproduced title files in a separate folder or storage area, and then runs out of storage space. It is an object of the present invention to provide a method of managing a playlist of a digital video file that can be deleted at the time priority to secure an insufficient storage space.

A method of managing a reproduction file list of a digital image according to the present invention for achieving the above object is a method of managing a reproduction file list of a digital image for managing a list of contents recorded or reproduced with respect to title data. A first step of storing in the reproduced file storage space when playing, and separately storing in the unplayed file storage space when not playing; A second step of checking whether the storage space is insufficient when recording and storing the digital image input from the outside; And a third step of deleting a title data stored in the reproduced file storage space to secure the storage space and newly recording and storing the digital image when the storage space is insufficient. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

FIG. 1 is a block diagram schematically illustrating a configuration of a digital video recorder / player for which a playlist management method of a digital video file according to an embodiment of the present invention is applied.

The digital image recorder / player 100 to which the present invention is applied includes a tuner 110, a demultiplexer 120, an audio buffer 130, and an audio decoder 132. , Video Buffer 140, Video Decoder 142, Data Buffer 150, Record & Play Unit 160, Controller ( 170, a memory 172, a network interface 174, a storage 180, a key input processor 190, a remote controller 192, and the like. .

Here, the tuner 110 is for receiving a digital broadcast signal by tuning a specific broadcast channel according to a channel tuning command from the controller 170, and the demux 120 is a digital broadcast signal received through the tuner 110. To parse MPEG transport streams into video, audio and data signals.

In addition, the audio buffer 130 is for buffering and temporarily storing the audio signal parsed by the demux 120, and the audio decoder 132 decodes the audio signal through the audio buffer 130 to enable playback output. To restore the audio signal. In addition, the video buffer 140 is for buffering and temporarily storing the video signal parsed by the demux 120, and the video decoder 142 decodes the video signal through the video buffer 140 to enable playback output. The data buffer 150 is for buffering and temporarily storing the data signal parsed by the demux 120.

Meanwhile, the recording / reproducing unit 160 converts data input from the outside into data suitable for recording under the control of the control unit 170, and records the data on a recording medium such as a DVD, a video tape, a hard disk (HDD), or the like. A series of data recording and reproducing operations for reading and reproducing data recorded on the recording medium is performed.

The controller 170 tunes the channel selected by the remote controller 192 through the tuner 110 and controls to record or display a broadcast image corresponding to the tuned channel. In addition, the controller 170 stores and manages the titles stored in the storage 180 by dividing them into a list of reproduced titles and a list of unplayed titles, and storing arbitrary broadcast images according to a user's key input. When the storage space of the storage 180 is insufficient, the storage space in which the already reproduced title image is stored is preferentially deleted to secure the storage space.

The memory 172 stores channel information tuned by a key input or stores a list of titles stored in the storage 180 as a reproduced list and a non-reproduced list, and the network interface 174. Is a communication means used when downloading a digital video in a DivX file from the Internet by connecting to the Internet.

The storage 180 stores, for example, a recorded title image, and may be divided into a reproduced title image file and a non-played title image file, for example, a hard disk (HDD).

Next, an operation of the digital image recorder / player 100 having the above-described configuration will be described with reference to FIG. 2.

2 is a flowchart illustrating a method of managing a playlist of a digital video file according to an exemplary embodiment of the present invention.

First, the controller 170 divides and stores the storage space of the storage 180 into a played file storage space (Played List) and an unplayed file storage space (to Play List), as shown in FIG. The plurality of title files stored in the &quot;) are divided into playback files and non-playback files, and are separately stored in respective storage spaces (S202).

The controller 170 divides the title image stored in the storage 180 into a played file and a unplayed file, as shown in FIG. 3, and stores the file in the memory 172. Save it as a list (S204).

On the other hand, when using the digital image recorder / player 100, when the user wants to record the current broadcast video while watching the broadcast video received through the tuner 110 and output through the digital TV In step S206, key input related to recording is performed through the remote controller 192.

The control unit 170 parses the digital broadcast video of the broadcast channel tuned through the tuner 110 into video, audio, and data signals of the MPEG transport stream through the demux 120, and then uses a DVD or a hard disk (HDD). Recording and recording the same into the storage 180 (step 208).

In this case, when the storage space is insufficient while storing the digital broadcast image in the storage 180 (S210), the controller 170 recognizes this and based on the list of unplayed files stored in the memory 172. The plurality of title images stored in the reproduced file storage space of the storage 180 are preferentially deleted (S212).

Then, the controller 170 increases the unplayed file storage space to the storage space secured by deleting the title image reproduced in the storage 180, and continues to store the digital broadcast image in the reserved storage space (S214). ).

When the recording and recording of the broadcast video watched by the user is finished, the controller 170 adds the unplayed file list to the memory 172 as the unplayed file list is not yet played for the title video newly stored in the unplayed file storage space (S216). ).

On the other hand, when the user wants to watch a title stored in the storage 180 such as a hard disk (HDD) in step S206, the desired title list is selected from among a plurality of titles stored in the storage 180 for playback. A key input is performed (S220). For example, as shown in FIG. 3, the user is instructed to select and play the title for " Voice Yi 20 times " from the plurality of title lists.

Accordingly, the controller 170 reproduces, through the recording / reproducing unit 160, the title for "Voice Yi 20 times" selected as a playback target among the titles stored in the unplayed storage space of the storage 180, and the memory. The title file is added to the reproduced title file list at 172 (S222).

When the DivX file is downloaded from the Internet through the network interface 174, the controller 170 adds the downloaded DivX file to the list of the titles of the memory 172 and downloads the DivX file in real time. When not playing, the downloaded file is added to the unplayed title file list of the memory 172 and the downloaded DivX file is stored in the unplayed file storage space of the storage 180.

As described above, according to the present invention, a plurality of recorded title files are separated into a title that has been played and a title that is not played, and the already-played title file is stored in a separate folder or a storage area, By deleting them in the order of priority when the capacity is insufficient, it is possible to realize a method of managing a playlist of a digital video file so as to secure insufficient storage space.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, by managing a list of titles that have already been reproduced separately, even if titles are already recorded on the hard disk and the capacity is full, the titles that have already been played when there is a broadcast program to be suddenly recorded. You can continue recording by immediately deleting the space to free up storage space. Also, in order to secure extra storage space on the hard disk, you need to find and delete previously recorded broadcast programs or titles. There is no need to perform the process, there is an effect that convenience is increased in managing the digital image file list of the user.

Claims (6)

A play list management method of a digital video file for managing a list of contents recorded or played back in a title video, A first step of storing the title video in a reproduced file storage space when it is reproduced and separately storing in the unplayed file storage space when not playing; A second step of checking whether the storage space is insufficient when recording and storing the digital image input from the outside; And And a third step of deleting a title image stored in the reproduced file storage space to secure the storage space and newly recording and storing the digital image when the storage space is insufficient. How to manage playlists of video files. The method of claim 1, In the first step, a plurality of title images stored in the played file storage space and the unplayed file storage space are divided into a played file list and an unplayed file list and separately stored in a memory. To manage playlists of digital video files. The method of claim 1, The method of claim 3, wherein the newly recorded and stored digital image is recorded and stored in the unplayed file storage space. The method of claim 1, And after the third step, when the newly recorded and stored digital video is reproduced, the digital video file is transferred to the reproduced file storage space and stored. The method of claim 3, wherein And storing a file list of the digital video to be newly recorded and stored in the unplayed file list. The method of claim 4, wherein And reproducing the file list of the digital image in addition to the reproduced file list when reproducing the newly stored digital image.

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