MP3 IDV3 Tags auslesen

/*
 * Created on 14.10.2004
 */
package de.tutorials;

import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

/**
 * @author Darimont
 *  
 */
public class Test12 {

    public Test12() {
        try {
            File file = new File("c:/Mp3.mp3");
            DataInputStream dis = new DataInputStream(new FileInputStream(file));

            dis.skipBytes(10); //Skip the first 10 bytes

            while (true) {
                byte[] b = new byte[4];
                int len = dis.read(b);
                String keyword = new String(b);
                System.out.println("Keyword: " + keyword);
                int frameBodySize = dis.readInt();
                if (frameBodySize == 0)
                    return;
                System.out.println("FrameBodySize: " + frameBodySize); //Size of the next Frame
                short flags = dis.readShort();
                System.out.println("Flags: " + flags);

                byte[] textBuffer = new byte[frameBodySize];
                System.out.println(textBuffer.length);
                len = dis.read(textBuffer);

                StringBuffer buffer = new StringBuffer();
                for (int i = 0; i < textBuffer.length; i++) {
                    if (textBuffer[i] == 0)
                        continue;

                    if (keyword.startsWith("T")) {
                        if (i < 3)
                            continue;
                    }

                    buffer.append((char) textBuffer[i]);
                }

                System.out.println("Text: " + buffer.toString());
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        new Test12();
    }
}