KR101254320B1 - Electronic apparatus for displaying exact play time of media file and the method thereof - Google Patents

Abstract

An electronic device and method for displaying the correct playback time of a media file are provided. The present playing time display method includes measuring a playing time of a media file and recording the measured playing time as information on a playing time of the media file. Accordingly, the problem that an error occurs in the display of the playback time of a media file encoded with a variable bitrate is solved.

VBR, Duration

Description

Electronic apparatus for displaying exact play time of media file and the method

1 is a block diagram schematically illustrating an electronic device for displaying an accurate playback time of a media file, according to an embodiment of the present disclosure; and

2 is a flowchart provided in a method of displaying an accurate playback time of a media file according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

111: operation unit 112: recording medium

113: voice signal processing unit 114: voice output unit

115: storage unit 116: image signal processing unit

117: display information generation unit 118: image output unit

119: control unit

The present invention relates to an electronic apparatus and method for displaying an accurate playing time of a media file, and more particularly, to an electronic apparatus and method for displaying an accurate playing time of a media file generated according to a variable bit rate. .

A media file is a file format that encodes video and audio in a digital form, stores it through a storage medium, and outputs recorded video and audio through playback and control as necessary.

The media file may be classified into encoding methods according to bit rates, and may be classified into a constant bit rate (CBR), a variable bit rate (VBR), and an average bit rate (ABR).

CBR encodes according to a constant bit rate regardless of the amount of information input according to a constant bit rate. The VBR variably applies the bit rate according to the amount of information to be encoded. In addition, ABR is a mixture of the above CBR and VBR to determine and encode a constant bit rate, while encoding and creating a constant bit rate by adding or subtracting bits where necessary.

When the media file according to the above encoding method is played back, the media file displays the total playing time, played time, and remaining time of the media file. Since CBR has a constant bitrate, the total playing time can be calculated by dividing the total media file size by the bitrate.

However, in the case of the VBR encoded with the variable bitrate, it is difficult to calculate the total reproduction time because the bitrate applied for each time point is different. Of course, the average of the bit rate of a predetermined time can be obtained and the playback time can be calculated using the same method as the CBR, but there is an error so that the correct time cannot be displayed.

The technical problem to be achieved by the present invention is to measure the playback time using a system time always having a constant frequency while the media file is playing, in order to display the playback time of the media file generated according to the variable bit rate without error, and accordingly The present invention provides an electronic device and a method for displaying the correct playback time of a media file when the media file is played again.

In order to solve the above technical problem, a method of calculating a play time according to the present invention includes measuring a play time of a media file and recording the measured play time as information on a play time of the media file. do.

And displaying information on a play time of the media file.

The media file may be a file generated according to a variable bit rate.

The measuring may include measuring, as a playing time of the media file, a time obtained by subtracting the time when the playing of the media file is stopped from the time taken from the start of playing of the media file to the end of playing.

On the other hand, the electronic device for calculating the correct playback time of the media file is measured by the signal processing unit for processing the media file to be playable and the playback time of the media file, and the playback time of the media file is measured It includes a control unit for recording with information about time.

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

1 is a block diagram schematically illustrating an electronic device for calculating a play time of a media file using a system time according to an embodiment of the present disclosure.

Referring to FIG. 1, an electronic device according to a preferred embodiment of the present invention includes an operation unit 111, a recording medium 112, an audio signal processor 113, an audio output unit 114, a storage unit 115, and an image signal processor. 116, a display information generation unit 117, an image output unit 118, and a control unit 119.

The operation unit 111 includes buttons for generating an input signal according to a user's command. When a button is selected by a user's manipulation, the manipulation unit 111 generates an input signal corresponding to the selected button and transmits the input signal to the controller 119 which will be described later.

The recording medium 112 stores a media file in which video and audio are encoded as digital signals through a recording medium interface provided in the electronic device. For example, the recording medium may be a magnetic disk, an optical disk, a memory stick, or the like. The recording medium 112 may be the same storage space as the storage unit 115 to be described later.

The voice signal processor 113 receives the voice media file stored in the recording medium 112 and provides the decoded voice signal to the voice output unit 114.

The voice output unit 114 outputs the voice signal received from the voice signal processing unit 113 or transmits the voice signal to an external output device.

The storage unit 115 may store a control algorithm for activating the setting and control of the electronic device. In addition, a file list for the information of the media file is stored. In particular, the file list stores the play time information of the media file, and displays the play time of the media file according to the play time stored when the media file is played.

The image signal processor 116 receives the image media file stored in the recording medium 112 and provides the decoded image signal to the display information generator 117. In addition, the functions of the audio signal processor 113 and the image signal processor 116 may be performed through one signal processor.

The display information generator 117 superimposes the display information on the video signal received from the video signal processor 116 or provides only the display information to the video output unit 118.

The image output unit 118 outputs an image signal or display information superimposed with the display information received from the display information generation unit 117 or transmits the image information to the external output device.

The controller 119 controls the overall operation of the electronic device according to a user command input through the manipulation unit 111 using a control algorithm previously stored in the storage 115.

The controller 119 measures the play time of the media file. In addition, the measured playback time is recorded in the file list as information on the playback time of the media file, and the recorded file list is stored in the storage unit 115.

In more detail, when the playback of the media file stored in the recording medium 112 starts, the controller 119 measures the playback time until the playback of the media file is finished using the system time. If the playback due to the control signal stops for a while in the middle of playing the media file, the controller 119 measures the stopped time from when it is stopped to when it is resumed. In addition, the control unit 119 measures the total playing time of the media file by subtracting the paused time from the time from the start of playback of the media file to the end thereof.

In addition, the controller 119 records the measured playback time in the file list as information on the playback time of the media file, and stores the measured playback time in the storage 115. In addition, the controller 119 generates a file list in which the information on the playing time of the media file played above is recorded. Accordingly, when the media file is played again, the controller 119 controls the display information generator 117. By controlling, the playback time is displayed according to the information on the playback time of the file list stored in the storage 115.

2 is a flowchart provided to a method of calculating an accurate playback time of a media file according to an embodiment of the present invention.

Referring to FIG. 2, first, the controller 119 checks whether playback of a media file is started (S210).

If it is determined in step S210 that the playback of the media file has been started (S210-Y), the controller 119 starts measuring the playback time from the time when the playback of the media file is started (S220).

The controller 119 checks whether the playback of the media file has ended (S230).

If it is determined that the playback of the media file is in progress (S230-N), the controller 119 continues to measure the playback time (S240).

The control unit 119 checks whether there is a stop command input for the reproduction operation through the operation unit 111 (S250).

If it is determined that the user's stop command is not input (S250-N), the controller 119 performs step S230.

If it is determined that the user's stop command is input (S250-Y), the controller 119 stops playing the media file and starts measuring the stop time (S260).

The control unit 119 checks whether a user resumes playback command through the operation unit 111 (S270). If it is determined that there is no input of the user's resume resume command (S270-N), the control unit 119 maintains the state of the media file playback stop and measurement of the stop time in step S260.

In addition, if it is determined that the user resume command is input (S270-Y), the control unit 119 performs step S230.

In addition, if it is determined in step S230 that the playback of the media file has ended (S230-Y), the controller 119 is measured for a time stopped in the middle of the playback time from the start of the playback of the media file to the end of the playback. The reproduction time minus the pause time is recorded in the file list (S280).

The present invention can be applied to any electronic device that plays back a variable bitrate encoded media file and displays a playback time. Therefore, the present invention can be applied to a DMB player, a CD player, a DVD player, an MP3 player, and a PDA (Personal Digital Assistant). And of course, the present invention can be applied to a device that can play media files.

As described above, according to the present invention, the playback time is measured by using the system time while the media file encoded with the variable bit rate is played and the playback time is recorded in the file list, so that the correct playback is performed when the file is played again. Allow time to be displayed.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (5)

In the display method of the playback time of the electronic device, Measuring a play time of a media file generated according to a variable bit rate using a system time of the electronic device; and Recording the measured playing time as information on a playing time of the media file; The measuring step, When the command to stop playing the media file is not input, the time taken from the start of the play of the media file to the end of the play is measured as the play time of the media file, When the playback stop command of the media file is input, the time from the start of playback of the media file to the end of playback is measured by subtracting the time when the playback of the media file is stopped as the playback time of the media file. The play time display method characterized in that. The method of claim 1, And displaying information on a play time of the media file. delete delete In an electronic device, A signal processor for processing a media file generated according to the variable bit rate to be reproduced; And And a controller configured to measure a play time of the media file using a system time of the electronic device, and to record the measured play time of the media file as information on a play time of the media file. The control unit, When the command to stop playing the media file is not input, the time taken from the start of the play of the media file to the end of the play is measured as the play time of the media file, When the playback stop command of the media file is input, the time from the start of playback of the media file to the end of playback is measured by subtracting the time when the playback of the media file is stopped as the playback time of the media file. Electronic device, characterized in that.

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