JP2015069212A - Media reproduction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a media reproduction device which can search an external storage medium for desired media data and reproduce the desired media data.SOLUTION: A media reproduction device comprises: a search processing unit 13 which, on the basis of reproduction completion ratios which indicate ratios of contents reproduced in respective pieces of media data, creates a reproduction list indicating information about pieces of media data selected from all pieces of media data stored in an external storage medium 2; and a display processing unit 14 which displays the reproduction list created by the search processing unit 13 on a display unit 3.

Description

  The present invention relates to a media playback device for playing back media data stored in an external storage medium.

In an external storage medium, media data is managed as a file for each folder. However, if the user does not know the management information such as which file is in which folder, multiple steps are required to reach the desired file, and it takes time to reproduce the desired file. .
For example, when the media playback device is an in-vehicle navigation device or an audio device, and the driver operates the media playback device, if the number of operation steps for playing back the file increases, it becomes impossible to focus on driving.

  On the other hand, for example, in the media playback device described in Patent Document 1, when folders stored in an external storage medium are configured across multiple hierarchies, all folders are managed in the same hierarchy. Further, an ALL folder for storing all media data information regarding all media data is newly created. By presenting the entire music list in the ALL folder, the user can easily search for and reproduce desired music from the entire music list.

JP 2012-89193 A

Conventionally, in order to easily reproduce a desired file stored in an external storage medium, a playlist in which a user's favorite file is registered is presented, and a desired song is searched for and reproduced from this playlist. To be done.
In this case, the user grasps all the files stored in the external storage medium, selects a favorite file from these files, and creates a reproduction list. As described above, there is a problem that the user needs to perform complicated processing in advance.

  Further, the conventional technique represented by Patent Document 1 can search for a file without following the folder hierarchy, and can reduce the number of operation steps for reproducing the file. However, since it is necessary to search through the entire music list stored in the external storage medium, there is a problem that it takes time to find and play a desired file.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a media playback device that can easily search and play back desired media data from an external storage medium.

  The media playback apparatus according to the present invention displays a list of information on media data stored in an external storage medium on a display unit, and reads out and plays back the media data instructed to be played based on the list from the external storage medium A search processing unit that is a playback device and creates a list of information about media data selected from media data stored in an external storage medium based on a playback completion rate indicating a ratio of played content of the media data And a display processing unit for displaying the list created by the search processing unit on the display unit.

  According to the present invention, there is an effect that desired media data can be easily retrieved from an external storage medium and reproduced.

It is a block diagram which shows the structure of the media reproduction apparatus concerning Embodiment 1 of this invention. 4 is a flowchart showing an operation of the media playback device according to the first embodiment. It is a figure which shows the operation example (the 1) of a play list screen. It is a figure which shows the reproduction | regeneration list screen after an update. It is a figure which shows the operation example (the 2) of a reproduction | regeneration list screen. 4 is a flowchart showing a playlist creation process of the media playback device according to the first embodiment. It is a flowchart which shows the production | generation process of the reproduction | regeneration list | wrist of the media playback apparatus concerning Embodiment 2 of this invention.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a media playback apparatus according to Embodiment 1 of the present invention. In FIG. 1, a media playback device 1 displays a playback list of media data (such as audio and video files) stored in an external storage medium 2 on a display unit 3, and media data for which playback has been instructed based on the playback list. Is read from the external storage medium 2 and played back. The configuration includes an external storage medium detection unit 10, an operation reception unit 11, an operation processing unit 12, a search processing unit 13, a display processing unit 14, a reproduction processing unit 15, an information registration processing unit 16, and an information storage unit 17.

  The external storage medium 2 is a storage medium for storing media data, and examples thereof include an SD (Secure Digital) card and a USB (Universal Serial Bus) memory. The display unit 3 is a display device that displays a reproduction list and the like under the control of the display processing unit 14. For example, it can be realized by a liquid crystal display, a plasma display, an organic EL (ElectroLuminescence) display, or the like.

  The external storage medium detection unit 10 is a detection unit that detects whether or not the external storage medium 2 is connected to the media playback device 1. The operation receiving unit 11 is a processing unit that receives an operation from the outside. For example, a pressing operation of a touch panel mounted on the display unit 3 is received. The operation processing unit 12 is a processing unit that executes processing according to the operation information received by the operation receiving unit 11. For example, according to the operation information, the search processing unit 13 is instructed to search the information storage unit 17, and the reproduction processing unit 15 is instructed to reproduce the media data.

The search processing unit 13 searches the information storage unit 17 for reproduction completion rate information corresponding to the media data stored in the external storage medium 2, and based on the reproduction completion rate information of the search result, a reproduction list of information relating to the media data Is a search processing unit for creating
The reproduction list is a list of information (for example, file names) related to media data selected from media data stored in the external storage medium 2 based on the reproduction completion rate information of the media data.

  The display processing unit 14 is a processing unit that displays information generated in each process by the search processing unit 13 and the reproduction processing unit 15 on the display unit 3. For example, the reproduction list created by the search processing unit 13 is displayed on the display unit 3, and the media information reproduced from the media data by the reproduction processing unit 15 is displayed on the display unit 3. The reproduction processing unit 15 is a processing unit that reproduces media data read from the external storage medium 2. Also, the playback processing unit 15 specifies the file name of media data, the playback time, and the number of playbacks, and outputs them to the information registration processing unit 16.

The information registration processing unit 16 registers the reproduction completion rate information, the reproduction count information, the registration time information, the file name information, and the file path information in the information storage unit 17 as file information related to the media data reproduced by the reproduction processing unit 15. It is a processing unit.
Here, the reproduction completion rate information is information indicating the content ratio of media data reproduced in the past by the user. For example, the song data selected by the user represents what percentage of the entire song has been played. In other words, when the music data selected by the user is reproduced from the beginning to the end, it becomes 100%, and when the reproduction is stopped in half, it becomes 50%.
The playback count information is the playback count of media data played back by the user in the past.
The registration time information is information indicating the time when the user instructs the reproduction of the media data. For example, when the user instructs reproduction of music data at dusk, the time zone at dusk is registered time information.
The file name information is information indicating the file name of the media data reproduced by the user, and the file path information is information indicating the file path of the media data reproduced by the user in the external storage medium 2.

  The information storage unit 17 is a storage unit that stores playback completion rate information, playback count information, registration time information, file name information, and file path information regarding the media data played back by the playback processing unit 15. For example, a storage device such as a hard disk device (HDD) mounted on the media playback device 1 or a storage device provided in an external device such as a server or a smartphone connected to a network is constructed.

  The external storage medium detection unit 10, the operation reception unit 11, the operation processing unit 12, the search processing unit 13, the display processing unit 14, the reproduction processing unit 15, and the information registration processing unit 16 are information processing that functions as the media reproduction device 1. When the microcomputer of the apparatus executes a program related to processing unique to the present invention, it is realized as a specific means in which hardware and software cooperate.

Next, the operation will be described.
FIG. 2 is a flowchart showing the operation of the media playback apparatus according to the first embodiment, in which a playback list of media data stored in the external storage medium 2 is displayed on the display unit 3 and media data playback based on the playback list is performed. The process until the instruction is accepted is shown.
In step ST1, the external storage medium detection unit 10 detects whether or not the external storage medium 2 is connected to the media playback device 1. When the external storage medium 2 is not detected (step ST1; NO), the detection process is repeated.

  When the external storage medium 2 is detected by the external storage medium detection unit 10 (step ST1; YES), the operation processing unit 12 instructs the search processing unit 13 to relate to the media data stored in the external storage medium 2. A reproduction list of information (file name) is created and output to the display processing unit 14. The reproduction list created at this stage is a list that directly reflects the hierarchical relationship of folders in the external storage medium 2 in the order in the list.

The display processing unit 14 displays a selection screen including the reproduction list created by the search processing unit 13 on the display unit 3. For example, a selection screen 3a as shown in FIG. 3 is displayed. The selection screen 3a displays a play list field 3b and a search button 3c. In the play list field 3b, a play list file created by the search processing unit 13 can be selected.
The search button 3 c is a button for instructing the search processing unit 13 to create a reproduction list based on the reproduction completion rate information corresponding to the media data stored in the external storage medium 2.

  Next, the operation accepting unit 11 confirms whether or not the pressing of the search button 3c is accepted (step ST2). As shown in FIG. 3, when the operation of pressing (selecting) the search button 3 c by the user is accepted (step ST <b> 2; YES), the operation processing unit 12 stores the search processing unit 13 in the external storage medium 2. Instructing the creation of a playlist based on the playback completion rate information corresponding to the stored media data.

When receiving the above instruction from the operation processing unit 12, the search processing unit 13 first searches the information storage unit 17 to check whether there is file information corresponding to the media data stored in the external storage medium 2. (Step ST3). If there is no file information corresponding to the information storage unit 17 (step ST3; NO), the process is terminated.
On the other hand, when there is file information corresponding to the information storage unit 17 (step ST3; YES), the search processing unit 13 reads out and acquires the corresponding file information from the information storage unit 17 (step ST4).

  Subsequently, the search processing unit 13 selects information (files) related to media data selected from the media data stored in the external storage medium 2 based on the reproduction completion rate information among the file information read from the information storage unit 17. (Name) reproduction list is created (step ST5). The display processing unit 14 displays the selection screen including the playlist on the display unit 3 by updating the playlist displayed earlier with the playlist created by the search processing unit 13 (step ST6). For example, the selection screen 3a shown in FIG. 4 is displayed, and the contents of the reproduction list column 3b are updated with the reproduction list based on the reproduction completion rate information.

For example, when various pieces of music data are played, a normal human being plays as a natural action longer than a song that does not like a song he likes. In other words, it can be said that the song that has been heard to the end suits the user's preference rather than the song that was stopped halfway.
Therefore, in the first embodiment, media data is selected based on reproduction completion rate information indicating the proportion of content reproduced in the past by the user, and a reproduction list is created.
As a result, it is possible to display a reproduction list of media data in which the user's preferences are accurately reflected, and the user can easily search and reproduce desired data based on the reproduction list. .

On the other hand, when the operation of pressing (selecting) the search button 3c by the user is not accepted (step ST2; NO), the operation accepting unit 11 confirms whether or not the push of the file name in the play list column 3b is accepted. (Step ST7). If the file name has not been pressed (step ST7; NO), the process ends.
As shown in FIG. 5, when the operation of pressing (selecting) the file name by the user is accepted (step ST <b>7; YES), the operation processing unit 12 reproduces the selected file name “□□ ○○”. The unit 15 is notified to instruct reproduction.

  Based on the file name “□□ ○○” file path information notified from the operation processing unit 12, the reproduction processing unit 15 reads the corresponding media data from the external storage medium 2 and performs reproduction (step ST8). At this time, the reproduction processing unit 15 measures the time during which the reproduction of the media data is continued, and informs the information registration processing unit 16 of the file name of the media data and the time when the reproduction is instructed (registration time information). Notice.

The information registration processing unit 16 updates the file information of the media data selected by the user by collating the information notified from the reproduction processing unit 15 with the file information stored in the information storage unit 17. . That is, the number-of-plays information and registration time information in the file information of the media data are updated.
Thereafter, when the next media data is reproduced, the reproduction processing unit 15 calculates the reproduction completion rate of the media data reproduced last time and notifies the information registration processing unit 16 of the calculation.
The information registration processing unit 16 updates the file information of the corresponding media data stored in the information storage unit 17 with the reproduction completion rate information notified from the reproduction processing unit 15. Up to this point corresponds to the processing of step ST9.

  Note that the reproduction completion rate is a ratio of the reproduced content of the media data, and may be calculated by excluding a portion not related to the data content. For example, when the media data is movie data, the reproduction completion rate is calculated from the reproduction time of only the portion indicating the content of the movie excluding the end roll portion. By doing in this way, data suitable for the user's preference can be accurately selected.

FIG. 6 is a flowchart showing a playlist creation process of the media playback device according to the first embodiment, and shows details of the process in step ST5 of FIG.
Based on the reproduction completion rate information read from the information storage unit 17, the search processing unit 13 rearranges the order in the file name list of media data selected from the external storage medium 2 in descending order of the reproduction completion rate (step ST1a). ).

Next, the search processing unit 13 creates a reproduction list in which file names are described in the rearranged order (step ST2a). This makes it possible to create a playlist that preferentially shows media data that matches the user's preference.
For example, even when a large number of file names are registered in the reproduction list, the one that most suits the user's preference is displayed at the top of the reproduction list column 3b.
Therefore, the user can select the file name of the desired data from the file names initially displayed in the list without scrolling through the file names in the reproduction list field 3b. Thereby, desired data can be selected and reproduced in a short time.

In the above description, a case is shown in which a playlist that accurately reflects the user's preferences is displayed. Conversely, by creating a list in which file names are listed in ascending order of playback completion rate, It is possible to select media data that does not match the taste.
For example, the search processing unit 13 creates a deletion candidate list in which the order in the media data list is determined in the order from the lowest reproduction completion rate, and causes the display processing unit 14 to display the deletion candidate list.
The operation processing unit 12 deletes the media data instructed to be deleted by the operation receiving unit 11 from the external storage medium 2 based on the deletion candidate list displayed on the display unit 3 by the display processing unit 14. In this way, the storage area of the external storage medium 2 can be used effectively.

  As described above, according to the first embodiment, the media data selected from the media data stored in the external storage medium 2 based on the playback completion rate indicating the ratio of the played content of the media data. A search processing unit 13 for creating a reproduction list of information, and a display processing unit 14 for displaying the reproduction list created by the search processing unit 13 on the display unit 3 are provided. With this configuration, it is possible to display a reproduction list of media data that accurately reflects the user's preferences, and the user can easily search and reproduce desired data based on the reproduction list. It is possible.

  Further, according to the first embodiment, the search processing unit 13 creates a reproduction list in which the order in the list of media data is determined in descending order of the reproduction completion rate. In this way, the user can select desired data from the data initially displayed in the list without scrolling through the reproduction list and searching. Thereby, desired data can be selected and reproduced in a short time.

Further, according to the first embodiment, the search processing unit 13 creates a deletion candidate list in which the order in the list of media data is determined in the order from the lowest reproduction completion rate, and the operation processing unit 12 displays the display processing unit 14. Based on the deletion candidate list displayed on the display unit 3, the media data instructed to be deleted by the operation receiving unit 11 is deleted from the external storage medium 2.
With this configuration, the storage area of the external storage medium 2 can be used effectively.

Embodiment 2. FIG.
In the second embodiment, the search processing unit 13 stores information on media data selected from the media data stored in the external storage medium 2 based on the number of times the media data has been played in the past and the playback completion rate. Create a playlist.
For example, when playing music data, a normal human being plays as a natural action longer than a song that does not like the song she likes, and more songs that she likes than a song that does not like it.
Therefore, in the first embodiment, the media data is selected based on the reproduction completion rate information indicating the proportion of content reproduced in the past by the user and the number of reproductions reproduced in the past, and a reproduction list is created. Thereby, the reliability of data selection suited to the user's preference can be improved as compared with the first embodiment.

FIG. 7 is a flowchart showing a playlist creation process of the media playback device according to the second embodiment, and shows details of a process corresponding to step ST5 in FIG.
First, the search processing unit 13 rearranges the order in the file name list of media data selected from the external storage medium 2 in descending order of the reproduction completion rate based on the reproduction completion rate information read from the information storage unit 17 ( Step ST1b).
Subsequently, the search processing unit 13 rearranges the order of the file names determined in step ST1b based on the reproduction count information read from the information storage unit 17 (step ST2b).

Next, the search processing unit 13 creates a reproduction list in which file names are described in the rearranged order (step ST3b). This makes it possible to create a playlist that preferentially shows media data that matches the user's preference.
For example, even when a large number of file names are registered in the reproduction list, the one that most suits the user's preference is displayed at the top of the reproduction list column 3b.
Therefore, the user can select the file name of the desired data from the file names initially displayed in the list without scrolling through the file names in the reproduction list field 3b. Thereby, desired data can be selected and reproduced in a short time.

In the above explanation, the case where the reproduction list that accurately reflects the user's preference is displayed has been shown, but conversely, the list in which the file names are listed in the order of the small number of reproductions and the low reproduction completion rate is created. Thus, it is possible to select media data that does not match the user's preference.
For example, the search processing unit 13 creates a deletion candidate list in which the order in the media data list is determined in the order from the smallest number of reproductions and the lowest reproduction completion rate, and causes the display processing unit 14 to display the deletion candidate list.
The operation processing unit 12 deletes the media data instructed to be deleted by the operation receiving unit 11 from the external storage medium 2 based on the deletion candidate list displayed on the display unit 3 by the display processing unit 14. In this way, the storage area of the external storage medium 2 can be used effectively.

As described above, according to the second embodiment, the search processing unit 13 selects from the media data stored in the external storage medium 2 based on the number of times the media data has been played and the playback completion rate. Create a playlist of information about the media data that has been played.
By configuring in this way, it is possible to display a reproduction list of media data in which user preferences are reflected more accurately than in the first embodiment. Thereby, the user can easily search and reproduce desired data based on the reproduction list.

  Further, according to the second embodiment, the search processing unit 13 creates a list in which the order in the list of media data is determined in the order from the lowest playback number of media data and the lowest playback completion rate. The processing unit 12 deletes the media data instructed to be deleted by the operation receiving unit 11 from the external storage medium 2 based on the list displayed on the display unit 3 by the display processing unit 14. With this configuration, the storage area of the external storage medium 2 can be used effectively.

  In the present invention, within the scope of the invention, any combination of each embodiment, any component of each embodiment can be modified, or any component can be omitted in each embodiment. .

  DESCRIPTION OF SYMBOLS 1 Media playback device, 2 External storage medium, 3 Display part, 10 External storage medium detection part, 11 Operation reception part, 12 Operation processing part, 13 Search processing part, 14 Display processing part, 15 Playback processing part, 16 Information registration process Part, 17 information storage part.

Claims (6)

A media playback device that displays a list of information on media data stored in an external storage medium on a display unit, reads out the media data instructed to be played based on the list from the external storage medium, and plays back the media data,
A search processing unit for creating a list of information on media data selected from the media data stored in the external storage medium based on a playback completion rate indicating a ratio of played content of the media data;
A media playback device comprising: a display processing unit that displays a list created by the search processing unit on the display unit.   The search processing unit creates a list of information on media data selected from media data stored in the external storage medium based on the number of times the media data has been played and the playback completion rate. The media reproducing apparatus according to claim 1.   2. The media playback apparatus according to claim 1, wherein the search processing unit creates a list in which the order in the list of media data is determined in descending order of the playback completion rate.   3. The media playback apparatus according to claim 2, wherein the search processing unit creates a list in which the order in the list of media data is determined in descending order of the playback completion rate and the number of playbacks. An operation accepting unit that accepts external operations;
An operation processing unit that executes an operation received by the operation receiving unit,
The search processing unit
Create a list that determines the order in the list of media data in ascending order of playback completion rate,
The operation processing unit includes:
2. The media reproduction according to claim 1, wherein the media data instructed to be deleted by the operation receiving unit is deleted from the external storage medium based on the list displayed on the display unit by the display processing unit. apparatus.   6. The media playback according to claim 5, wherein the search processing unit creates a list in which the order in the list of media data is determined in the order from the lowest playback completion rate of the media data. apparatus.

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