JP2007207340A - Playlist preparation device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a playlist preparation device and a playlist preparation method which enable a preparer to specify a reproduction order and enable a playlist in which a reproduction order intended by the preparer is reflected to be prepared. <P>SOLUTION: A content table of which the data files are recorded in a data file recording part 121 is displayed on a display part 13, an operation part 14 receives content selection input selecting content to be recorded in the playlist from the content table and a reproduction order specifying input specifying a reproduction order of the selected content, a data management part 16 prepares the playlist in which the content selected by the content selection input is recorded and the reproduction order specified by the reproduction order specifying input is described as reproduction order specifying information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a playlist creation device and a playlist creation method for creating a playlist in which a list of contents to be reproduced is described, and in particular, a playlist creation device and a playlist for creating a playlist reflecting the creation intention of the creator. It relates to a list creation method.

  In recent years, in a playback device such as an audio player that plays back content such as video and music, a large-capacity recording means such as an HDD or a silicon memory has come to be used as a data file recording means for recording a content data file. In addition, a large amount of content (data file) can be recorded in the data file recording means.

  Among the contents recorded in large quantities in this way, there is a function called a playlist as a function for reproducing only a plurality of contents desired by the user according to the place and situation. The playlist is a list in which a plurality of contents selected according to the user's preference are described. In-device addresses indicating the locations where the contents are recorded, file names, and the like are described, and playback based on the playlist is instructed. Then, a plurality of contents described in the playlist are sequentially played back.

  Conventional playlists are based on the premise that content is recorded in the playback device, and cannot be used in other playback devices. That is, the content described in the playlist is not necessarily recorded on the other playback device, and even if the content described in the playlist is recorded on the other playback device, The in-device address and file name described are specific to the playback device in which the playlist has been created. In other playback devices, the corresponding content is the in-device address and file name described in the place list. Is not recorded, reproduction based on the playlist cannot be performed.

  Therefore, a new playlist that can be shared by a plurality of playback devices by describing a unique ID that identifies the content has been proposed (see, for example, Patent Document 1). By describing the unique ID in the playlist, the data file recorded in the data file recording means can be identified and reproduced based on the unique ID, and the data file is recorded in the data file recording means. Content that is not available can be collected and played back via the network based on the unique ID.

However, in the prior art, there are cases where playlists are played back in an order not intended by the creator of the playlist. In other words, even if the creator intends to play the playlist in the order in which the contents are listed, whether or not the order of the listed contents is meaningful in the playlist itself. Since it is not possible to determine whether or not the content described in the playlist is randomly selected and played back, there is a problem that the creator's intention cannot be reflected in the playlist. there were.
JP 2005-100612 A

  The present invention has been made in view of such problems, and an object of the present invention is to create a playlist that can specify the playback order by the creator and reflects the playback order intended by the creator. The present invention is to provide a playlist creation device and a playlist creation method that can be used.

In order to solve the above problems, the present invention has the following configuration.
A playlist creation apparatus according to the present invention is a playlist creation apparatus for creating a playlist in which a list of contents to be played is described, a content display means for displaying a content list of playlist description candidates, and the content display means An operation means for receiving a content selection input for selecting the content described in the playlist from the content list displayed on the display, and a reproduction order designation input for designating the reproduction order of the selected content; and the content selection Data management means for creating the playlist in which the content selected by the input is described and the reproduction order designated by the reproduction order designation input is described as reproduction order designation information is provided.

  Furthermore, in the playlist creation device of the present invention, the playback order designation information is specified in the playback order in units of contents.

  Further, the playlist creation method of the present invention is a playlist creation method for creating a playlist in which a list of contents to be played is described, displaying a list of playlist candidate contents, and displaying the displayed list of contents. The content selection input for selecting the content to be described in the playlist from the inside and the reproduction order designation input for designating the reproduction order of the selected content are received, and the content selected by the content selection input is described The play list is created in which the reproduction order designated by the reproduction order designation input is described as reproduction order designation information.

  Furthermore, in the playlist re-creation method of the present invention, the reproduction order designation information designates the reproduction order in units of contents.

  In addition, the playlist reproduction device of the present invention is a playlist reproduction device that performs reproduction based on a playlist in which a list of contents to be reproduced is described, and reproduction of the content described in the playlist is performed. Reproduction order designating information for designating the order is described, and data management means is provided for reproducing the reproduction order designated by the reproduction order designation information even in the random reproduction mode.

  Furthermore, in the playlist reproduction device of the present invention, the data management means, in the random reproduction mode, plays the content designated to be reproduced following the previous content by the reproduction order designation information. It is set as a reproduction order designation content, The reproduction order designation content is excluded from the contents described in the playlist, and is randomly selected and reproduced.

  The playlist reproduction method of the present invention is a playlist reproduction method for performing reproduction based on a playlist in which a list of contents to be reproduced is described, wherein the reproduction of the contents described in the playlist is performed. Reproduction order designating information for designating the order is described, and reproduction is performed in accordance with the reproduction order designated by the reproduction order designating information even in the random reproduction mode.

  Further, in the playlist reproduction method of the present invention, in the random reproduction mode, the content designated to be reproduced following the previous content by the reproduction order designation information is set as a reproduction order designation content, It is characterized in that the reproduction order designation content is excluded from the contents described in the play list and randomly selected and reproduced.

  Also, the playlist of the present invention is a playlist in which a list of contents to be played back is described, and playback order designation information for designating the playback order of the described contents is described therein. .

  Furthermore, in the playlist of the present invention, the playback order is specified in units of content by the playback order specifying information.

  The playlist creation apparatus and playlist creation method of the present invention accepts a content selection input for selecting content to be described in a playlist from a content list, and a playback order designation input for designating the playback order of the selected content, The content selected by the content selection input is described, and a playlist in which the playback order specified by the playback order specification input is described as playback order specification information is created. Since a playlist with a specified playback order can be created, the playback order can be specified by the creator, and a playlist that reflects the playback order intended by the creator can be created. .

  Furthermore, the playlist creation apparatus and playlist creation method of the present invention is configured so that the playback order is specified in units of content by the playback order specification information, so that the playback order of only the content that the creator wants to continuously play back is absolutely necessary. Can be specified, and the degree of freedom in creating a playlist is improved.

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

  FIG. 1 is a block diagram showing a configuration of an embodiment of a playlist creating apparatus according to the present invention, and FIG. 2 is a diagram showing an example of a playlist created by the playlist creating apparatus shown in FIG.

  The playlist creation apparatus according to the present embodiment is a playback apparatus 10 such as an audio player having a playlist creation function for creating a playlist and a playlist playback function for performing playback based on the playlist. Referring to FIG. The transmission / reception unit 11, the information recording unit 12, the display unit 13, the operation unit 14, the reproduction processing unit 15, and the data management unit 16 are configured to be connectable to a network 20 such as the Internet.

  The playlist created and played back by the playback apparatus 10 is a list in which a list of contents to be played back is described. As shown in FIG. 2, a unique ID for specifying the contents and playback order designation information are described. Yes. Note that bibliographic data such as content names and artist names may be described in the playlist. The reproduction order designation information is information for designating whether or not to reproduce sequentially for each content. In the example shown in FIG. 2, the reproduction of the second content after the first content is designated, It is specified that the fifth content is played after the fourth content. In the present embodiment, a content that is designated to be reproduced following the previous content is referred to as a reproduction order designation content. In addition, FIG. 2 shows an example in which playback order designation information is used in a playlist. However, when a playlist is handled as a file, it is played back as binary data in a part of the file, such as a file header or footer. The order designation information may be described.

  Further, in the example shown in FIG. 2, the playback order is specified in units of content by the playback order specification information. However, the playback order of the entire playlist is specified, that is, playback is performed in the order of the contents described in the playlist. In this case, in addition to describing the information specifying that the content is played in order as the playback order specifying information in the playlist, when the playlist is handled as a file, Playback order designation information can be described in the file name or extension. When the playback order of the entire playlist is specified, all the second and subsequent contents are playback order specified contents.

  As an example of describing the playback order specification information in the file name, describe the file name of the playlist for which the playback order is not specified in lower case, and describe the file name of the playlist for which the playback order is specified in upper case. Thus, the file name can be used as reproduction order designation information. In addition, as an example of describing the playback order designation information in the extension, as with the file name, the extension of the playlist for which the playback order is specified and the playlist for which the playback order is not specified are changed to uppercase and lowercase letters. The extension can be used as the playback order designation information, and the extension of the playlist for which the playback order is specified is different from the extension of the playlist for which the playback order is not specified. By using, the extension can be used as reproduction order designation information.

  The transmission / reception unit 11 has a function of connecting to the network 20 by wire or wireless, and includes a content distribution server 30 that distributes content data files via the network 20 and an information processing device 40 such as a personal computer owned by a third party. It has a function to perform information communication.

  The information recording unit 12 is a recording unit such as an HDD or a silicon memory, and a data file recording unit 121 that records a data file received from the content distribution server 30 and a playlist recording unit 122 that records a created playlist. It consists of. It is assumed that the data file received from the content distribution server 30 includes a unique ID that identifies the content, and the data file recording unit 121 stores the unique ID together with the data file.

  The display unit 13 is a display unit such as a liquid crystal display. When the content includes video data, the display unit 13 displays the video reproduced by the reproduction processing unit 15 and describes it in the playlist when creating the playlist. In order to select a content to be played, a list of content in which the data file is recorded is displayed as a playlist description candidate in the data file recording unit 121, and when the playlist is played back, the playlist is recorded in order to select the content to be played back. A list of playlists recorded in section 122 is displayed.

  The operation unit 14 is an operation unit such as an operation button. When creating a playlist, a content display instruction input for instructing display of a content list, a content selection input for selecting displayed content, and a playlist in which the selected content is described Play list creation instruction input for instructing creation, playback order designation input for designating the playback order of contents described in the playlist, and playlist display instruction input for instructing display of the playlist list during playlist playback , Playlist selection input to select the displayed playlist, playback mode specification input to specify whether to play the playlist in order or at random, and playback instruction input to instruct playback of the selected playlist Is called.

  The reproduction processing unit 15 decompresses and reproduces the data file recorded in the data file recording unit 121 of the information recording unit 12, displays the video on the display unit 13, and outputs the audio to the connected headphones 50. To do.

  The data management unit 16 controls the information recording unit 12, the display unit 13, and the operation unit 14 to select content in which the data file is recorded in the data file recording unit 121, and a playlist in which the selected content is described And the information recording unit 12, the display unit 13, the operation unit 14 and the reproduction processing unit 15 are selected, and the playlist recorded in the playlist recording unit 122 is selected. A playlist playback operation for playing back the content described in the selected playlist is executed.

Next, the playlist creation operation of the present embodiment will be described in detail with reference to FIG.
FIG. 3 is a flowchart for explaining the playlist creation operation in the embodiment of the playlist creation device according to the present invention.

  First, the data management unit 16 receives a content display instruction input from the operation unit 14 (step A1). When the content management instruction input is received, a data file is stored in the data file recording unit 121 of the information recording unit 12 in the display unit 13. A list of recorded contents is displayed as a play list description candidate (step A2).

  Next, the data management unit 16 receives a content selection instruction input from the operation unit 14 (step A3), receives a playlist creation instruction input from the operation unit 14 (step A4), and selects a content selection instruction input and a playlist. When the creation instruction input is accepted, the user is inquired whether to specify the playback order of the content selected by the content selection instruction input (step A5).

  When the content playback order is designated in step A5, that is, when an input indicating that the playback order is designated is performed from the operation unit 14, the data management unit 16 accepts a playback order designation input from the operation unit 14 (step A6) When the reproduction order designation input is received, the content selected by the content selection instruction input in step A3 is described, and the playlist in which the reproduction order designated by the reproduction order designation input is described as the reproduction order designation information. The created playlist is recorded in the playlist recording unit 122 (step A7), and the playlist creation operation is terminated.

  When the playback order is not specified in step A5, that is, when an input indicating that the playback order is not specified is performed from the operation unit 14, the data management unit 16 selects the content selected by the content selection instruction input in step A3. Is created and the playback order designation information is not described (step A8), the created playlist is recorded in the playlist recording unit 122, and the playlist creation operation is terminated.

Next, the playlist reproduction operation of the present embodiment will be described in detail with reference to FIG.
FIG. 4 is a flowchart for explaining a playlist reproduction operation in the embodiment of the playlist creation apparatus according to the present invention.

  First, the data management unit 16 accepts a playlist display instruction input from the operation unit 14 (step B1), and upon accepting a playlist display instruction input, the playlist recorded in the playlist recording unit 122 on the display unit 13 Is displayed (step B2).

Next, the data management unit 16 accepts a playlist selection instruction input from the operation unit 14 (step B3), accepts a playlist reproduction instruction input from the operation unit 14, and receives a playlist selection instruction input and a playlist reproduction instruction. When the input is received, the reproduction operation of the playlist specified by the playlist selection instruction input is started.
(Step B4)
The data management unit 16 determines whether or not the reproduction mode designated by the reproduction mode designation input is in order (step B5). If the reproduction mode is in order, 1 is set in the variable n. (Step B6), the reproduction processing unit 15 reproduces the n-th content described in the playlist (Step B7), and when the reproduction is completed (Step B8), n is incremented (Step B9), and Step B7 Return to. Thereafter, the operations from Step B7 to Step B9 are repeated until an instruction to stop reproduction is given, and the contents described in the play list are reproduced in order.

  If the playback mode is not in order in step B5, that is, if the playback mode is random playback mode, the data management unit 16 determines whether or not playback order designation information is described in the selected playlist (step B10). .

  When the playback order designation information is not described in the playlist selected in step B10, the data management unit 16 selects content randomly selected from the content described in the playlist by the playback processing unit 15. When the reproduction is finished (step B11) and the reproduction is finished (step B12), the process returns to step B11. Thereafter, the operation from step B11 to step B12 is repeated until an instruction to stop the reproduction is given, and the content described in the play list is reproduced at random.

  When the playback order designation information is not described in the playlist selected in step B10, the data management unit 16 removes the playback order designation content from the contents described in the playlist by the playback processing unit 15. When the content selected at random is reproduced (step B13) and the reproduction ends (step B14), it is determined whether or not the content to be reproduced next is designated by referring to the reproduction order designation information (step B14). B15).

  In order to designate the content to be reproduced next at step B15, the data management unit 16 reproduces the content designated by the reproduction processing unit 15 (step B16), returns to step B14, and at step B15, performs the next. If the content to be played is not specified in step B13, the process returns to step B13. Thereafter, the operation from step B13 to step B16 is repeated until an instruction to stop the reproduction is given, and the content described in the playlist is reproduced at random while keeping the reproduction order specified by the reproduction order designation information. .

  In this embodiment, the play list is reproduced in order and the mode in which the play list is performed in random order can be designated. However, the mode in which the contents described in the play list are directly selected and reproduced. May be adopted. Even in this case, when the content described in the playlist is directly selected, the playback order specified by the playback order specification information can be maintained by controlling the playback order specification content so that it cannot be selected. Become.

  As described above, according to the present embodiment, the content list in which the data file is recorded in the data file recording unit 121 is displayed on the display unit 13, and is described in the playlist from the content list by the operation unit 14. The content selection input for selecting the content to be selected and the reproduction order designation input for designating the reproduction order of the selected content are received, and the data management unit 16 describes the content selected by the content selection input. By creating a playlist in which the specified playback order is described as playback order specification information, it is possible to create a playlist in which the playback order of content is specified by the playback order specification information. The playback order can be specified by the creator, and the playback order that the creator intended is reflected. An effect that it is possible to create a Irisuto.

  Furthermore, according to the present embodiment, by configuring the playback order to be specified in units of content by the playback order specifying information, the creator can specify the playback order of only the content that the creator wants to continuously play. There is an effect that the degree of freedom in creating the playlist is improved.

  It should be noted that the present invention is not limited to the above-described embodiments, and it is obvious that each embodiment can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like in practicing the present invention. In each figure, the same numerals are given to the same component.

It is a block diagram which shows the structure of embodiment of the playlist production apparatus which concerns on this invention. It is a figure which shows the example of a playlist produced with the playlist production apparatus shown in FIG. It is a flowchart for demonstrating the play list creation operation | movement in embodiment of the play list preparation apparatus which concerns on this invention. It is a flowchart for demonstrating playlist reproduction | regeneration operation | movement in embodiment of the playlist production apparatus based on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Playback apparatus 11 Transmission / reception part 12 Information recording part 13 Display part 14 Operation part 15 Playback process part 16 Data management part 20 Network 30 Content delivery server 40 Information processing apparatus 50 Headphone 121 Data file recording part 122 Playlist recording part

Claims (10)

A playlist creation device for creating a playlist in which a list of contents to be played is described,
Content display means for displaying a content list of play list description candidates;
Operation means for receiving a content selection input for selecting the content described in the playlist from the content list displayed on the content display means, and a reproduction order designation input for designating the reproduction order of the selected content; ,
Data management means for creating the playlist in which the content selected by the content selection input is described and the reproduction order designated by the reproduction order designation input is described as reproduction order designation information. A playlist creation device.   2. The playlist creation apparatus according to claim 1, wherein the reproduction order designation information designates a reproduction order in units of contents. A playlist creation method for creating a playlist with a list of contents to be played back,
Displays a list of playlist candidate contents,
Receiving a content selection input for selecting the content described in the playlist from the displayed content list and a reproduction order designation input for designating the reproduction order of the selected content;
A playlist creation method, wherein the playlist selected by the content selection input is described, and the playlist in which the reproduction order designated by the reproduction order designation input is described as reproduction order designation information is created.   4. The playlist creation method according to claim 3, wherein the reproduction order designation information designates a reproduction order in units of contents. A playlist reproduction device that performs reproduction based on a playlist in which a list of contents to be reproduced is described,
In the playlist, reproduction order designation information for designating the reproduction order of the contents described is described,
A playlist reproduction apparatus comprising data management means for reproducing data in a random reproduction mode in accordance with the reproduction order designated by the reproduction order designation information.   In the random playback mode, the data management means sets the content specified to be played back following the previous content by the playback order specifying information as a playback order specified content, and is described in the playlist. 2. The playlist reproduction apparatus according to claim 1, wherein the reproduction order designation content is excluded from the content that is selected and is reproduced at random. A playlist reproduction method for performing reproduction based on a playlist in which a list of contents to be reproduced is described,
In the playlist, reproduction order designation information for designating the reproduction order of the contents described is described,
A playlist playback method, wherein playback is performed in accordance with the playback order specified by the playback order specifying information even in the random playback mode.   In the random playback mode, the content that is specified to be played back subsequent to the previous content by the playback order specifying information is set as a playback order specifying content, and the content described in the playlist is 6. The playlist reproduction method according to claim 5, wherein the reproduction order designation content is excluded from the random selection and reproduction is performed at random. A playlist with a list of content to be played,
A play list characterized in that reproduction order designation information for designating the reproduction order of the contents described is described.   The playlist according to claim 9, wherein a playback order is specified for each content by the playback order specifying information.

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