get Audio file Metadata - Java javax.sound.sampled

Java examples for javax.sound.sampled:Audio

  1. HOME
  2. Java
  3. javax.sound.sampled
  4. Audio

Description

get Audio file Metadata

Demo Code


import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioSystem;

public class Main{
    public static void main(String[] argv) throws Exception{
        File filename = new File("Main.java");
        System.out.println(getMetadata(filename));
    }/*from  www  .  j  av a2  s.  c  om*/
    private static ArrayList<FileMap> cache = new ArrayList<FileMap>();
    private static int _CACHE_SIZE = 5;
    public static Map<String, Object> getMetadata(File filename)
            throws Exception {
        FileMap fm = new FileMap(filename, null);
        int index = cache.indexOf(fm);
        if (index >= 0)
            return cache.get(index).getMap();

        AudioFileFormat format = AudioSystem.getAudioFileFormat(filename);

        Map<String, Object> mapa = new HashMap<String, Object>();
        mapa.putAll(format.properties());

        if (mapa.get("author") == null
                && filename.getName().contains(" - ")) {
            mapa = new HashMap<String, Object>();
            String[] s = filename.getName().split(" - ");
            mapa.put("author", s[0]);
            s[1] = s[1].substring(0, s[1].length() - 4);
            mapa.put("title", s[1]);
        }

        if (mapa.get("author") == null) {
            mapa.put("author", "Desconhecido");
            mapa.put("title", "Desconhecido");
        }

        Object o = format.properties().get("duration");

        if (o == null)
            mapa.put("duration", 0);

        fm.setMap(mapa);
        cache.add(fm);
        while (cache.size() > _CACHE_SIZE)
            cache.remove((int) 0);

        return mapa;
    }
}

Related Tutorials