SequencerWAV.java

Go to the documentation of this file.

package com.neuronrobotics.sdk.dyio.sequencer;
import java.io.File;
import com.neuronrobotics.sdk.util.ThreadUtil;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
public class SequencerWAV {
    
    private String fn="";
    
    // constructor that takes the name of an MP3 file
    private Clip player;
    
    private int trackLength = 37;
 
    public SequencerWAV(String filename) {
        fn = filename;
        try {
            AudioInputStream audioStream = AudioSystem.getAudioInputStream(new File(fn));
 
            player = AudioSystem.getClip();
 
            trackLength = (int) (((double)player.getMicrosecondLength())/1000.0);
 
        }
        catch (Exception e) {
            System.out.println("Problem playing file " + filename+"\r\n");
            //e.printStackTrace();
            throw new RuntimeException(e);
        }
    }
    
    public void pause(){
        player.stop();
    }
 
    public void close() { 
        if (player != null) 
            player.stop(); 
    }
 
    public boolean isPlaying() {
        if(player!=null)
            return (player.isRunning());
        return false;
    }
    
    public int getCurrentTime() {
        return (int) (((double) player.getMicrosecondPosition())/1000.0);
    }
    
    public void setCurrentTime(int time) {
        player.setMicrosecondPosition(time*1000);;
    }
    
    public int getTrackLength(){
        return trackLength;
    }
    
    private double getPercent() {
        if(!isPlaying()){
            return 0;
        }
        if(player!=null) {
            double pos =((double) player.getMicrosecondPosition())/1000.0;
            double len =((double) player.getMicrosecondLength())/1000.0;
            double percent = pos/len*100.0;
            return percent;
        }
        return 0;
    }
 
    
    public void playStep(){
 
        player.start();
        
    }
 
    // play the MP3 file to the sound card
    public void play() {
 
        player.start();
        
 
    }
 
 
    // test client
    public static void main(String[] args) {
        SequencerWAV mp3 = new SequencerWAV("track.mp3");
        
        mp3.play();
        System.out.println("Track length= "+mp3.getTrackLength());
        while(mp3.isPlaying() ){
            System.out.println("Current "+mp3.getCurrentTime() +" Percent = "+mp3.getPercent());
            ThreadUtil.wait(100);
        }
        System.out.println("Finished "+mp3.getCurrentTime()+" of "+mp3.getTrackLength());
        System.exit(0);
        //mediaPlayer.
 
    }
 
 
 
    
 
}