CODEWITHSUNDEEP
androidaudio
Kaarel
Kaarel

Reputation: 10672

Determining the duration and format of an audio file

Given a path (on the SD card) to an audio file, what is the best way of determining the length of the audio in milliseconds and the file format (or Internet media type)?

(For the duration one could use MediaPlayer's getDuration-method, but this seems too slow/clumsy.)

Upvotes: 13

Views: 10515

Answers (3)

John K
John K

Reputation: 506

For the length of the audio file:

File yourFile;
MediaPlayer mp = new MediaPlayer();
FileInputStream fs;
FileDescriptor fd;
fs = new FileInputStream(yourFile);
fd = fs.getFD();
mp.setDataSource(fd);
mp.prepare(); 
int length = mp.getDuration();
mp.release();

Check this for MimeType: https://stackoverflow.com/a/8591230/3937699

Upvotes: 12

Nolesh
Nolesh

Reputation: 7018

I think the easiest way is:

MediaPlayer mp = MediaPlayer.create(this, Uri.parse(uriOfFile);
int duration = mp.getDuration();
mp.release();
/*convert millis to appropriate time*/
return String.format("%d min, %d sec", 
            TimeUnit.MILLISECONDS.toMinutes(duration),
            TimeUnit.MILLISECONDS.toSeconds(duration) - 
            TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration))
        );

Upvotes: 5

dbryson
dbryson

Reputation: 6127

Just taking a stab at an answer for you, but you could probably determine the media type by the file extension - which I think MediaFile may be able to help you with. As for duration, I believe the getDuration() method is actually a native call, so I don't know if you will be able to do it much faster.

Upvotes: 1

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