Read out Time/Length/Duration of an Mp3 song in Java

I wonder how I can read out th开发者_运维知识库e duration of an mp3 song. If I'm right it's not an ID3 Tag so I guess I have to calculate it somehow ? For the rest of the ID3 Tags I'm using this libary: http://javamusictag.sourceforge.net/index.html

Cheers

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I would change the code to...

File file = new File("filename.mp3");
AudioFileFormat baseFileFormat = new MpegAudioFileReader().getAudioFileFormat(file);
Map properties = baseFileFormat.properties();
Long duration = (Long) properties.get("duration");

using MP3SPI to use new MpegAudioFileReader() instead of AudioSystem, because i was getting an UnsupportedAudioFileException occured : file is not a supported file type with mp3 files

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You could try using MP3SPI which is based on JLayer. The following code will then allow you to get the song duration:

File file = new File("filename.mp3");
AudioFileFormat baseFileFormat = AudioSystem.getAudioFileFormat(file);
Map properties = baseFileFormat.properties();
Long duration = (Long) properties.get("duration");

You can also use MP3SPI to get at the ID3 tags which might save you an extra dependency.

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Use some MP3 library. The MP3 format is not that easy that there is some simple way to read out the length of a song.