fiore@3: /*  
fiore@3:  CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
fiore@3:   
fiore@3:  Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
fiore@3: 
fiore@3:  This program is free software: you can redistribute it and/or modify
fiore@3:  it under the terms of the GNU General Public License as published by
fiore@3:  the Free Software Foundation, either version 3 of the License, or
fiore@3:  (at your option) any later version.
fiore@3: 
fiore@3:  This program is distributed in the hope that it will be useful,
fiore@3:  but WITHOUT ANY WARRANTY; without even the implied warranty of
fiore@3:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
fiore@3:  GNU General Public License for more details.
fiore@3: 
fiore@3:  You should have received a copy of the GNU General Public License
fiore@3:  along with this program.  If not, see <http://www.gnu.org/licenses/>.
fiore@3: */ 
fiore@3: 
fiore@3: package uk.ac.qmul.eecs.ccmi.speech;
fiore@3: 
fiore@3: import java.io.ByteArrayInputStream;
fiore@3: import java.io.ByteArrayOutputStream;
fiore@3: import java.io.IOException;
fiore@3: 
fiore@3: import javax.sound.sampled.AudioFileFormat;
fiore@3: import javax.sound.sampled.AudioFormat;
fiore@3: import javax.sound.sampled.AudioInputStream;
fiore@3: import javax.sound.sampled.AudioSystem;
fiore@3: import javax.sound.sampled.UnsupportedAudioFileException;
fiore@3: 
fiore@3: 
fiore@3: import net.beadsproject.beads.core.AudioContext;
fiore@3: import net.beadsproject.beads.core.Bead;
fiore@3: import net.beadsproject.beads.data.Sample;
fiore@3: import net.beadsproject.beads.ugens.Gain;
fiore@3: import net.beadsproject.beads.ugens.Panner;
fiore@3: import net.beadsproject.beads.ugens.SamplePlayer;
fiore@3: 
fiore@3: import com.sun.speech.freetts.audio.AudioPlayer;
fiore@3: 
fiore@5: /**
fiore@5:  * An implementation of {@code AudioPlayer} using the {@code Beads} 
fiore@5:  * library.
fiore@5:  */
fiore@3: public class BeadsAudioPlayer implements AudioPlayer {
fiore@3: 	public BeadsAudioPlayer(){
fiore@3: 		format = new AudioFormat(8000f, 16, 1, true, true);
fiore@3: 		ac = new AudioContext(format);
fiore@3: 		volume = 1.0f;
fiore@3: 		monitor = new Object();
fiore@3: 	}
fiore@3: 	
fiore@3: 	public BeadsAudioPlayer(float vol, float pan){
fiore@3: 		this();
fiore@3: 		volume = vol;
fiore@3: 		this.pan = pan;
fiore@3: 	}
fiore@3: 	
fiore@3: 	
fiore@3: 	@Override
fiore@3: 	public void begin(int size) {
fiore@3: 		buffer = new byte[size];
fiore@3: 		bufferPosition = 0;
fiore@3: 		ac = new AudioContext();
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void cancel() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void close() {
fiore@3: 		ac.stop();
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public boolean drain() {
fiore@3: 		synchronized(monitor){
fiore@3: 			if(!finished)
fiore@3: 				try {
fiore@3: 					monitor.wait();
fiore@3: 				} catch (InterruptedException e) {
fiore@3: 					throw new RuntimeException(e);
fiore@3: 				}
fiore@3: 			finished = false;	
fiore@3: 		}
fiore@3: 		return false;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public boolean end() {
fiore@3: 		ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
fiore@3: 		AudioInputStream audioStream = new AudioInputStream(stream, format, bufferPosition/format.getFrameSize());
fiore@3: 		ByteArrayOutputStream out = new ByteArrayOutputStream();
fiore@3: 		Sample sample = null;
fiore@3: 		try {
fiore@3: 			AudioSystem.write(audioStream, AudioFileFormat.Type.WAVE,out);
fiore@3: 			sample = new Sample(new ByteArrayInputStream(out.toByteArray()));
fiore@3: 		} catch (IOException e) {
fiore@3: 			e.printStackTrace();
fiore@3: 			return false;
fiore@3: 		} catch (UnsupportedAudioFileException e) {
fiore@3: 			e.printStackTrace();
fiore@3: 			return false;
fiore@3: 		}
fiore@3: 		
fiore@3: 		SamplePlayer player = new SamplePlayer(ac,sample);
fiore@3: 		player.setKillOnEnd(true);
fiore@3: 		Gain g = new Gain(ac,1,volume); 
fiore@3: 		g.addInput(player);
fiore@3: 		final Panner panner = new Panner(ac,pan);
fiore@3: 		panner.addInput(g);
fiore@3: 		player.setKillListener(new Bead(){
fiore@3: 			@Override
fiore@3: 			protected void messageReceived(Bead message){
fiore@3: 				panner.kill();
fiore@3: 				synchronized(monitor){
fiore@3: 					finished = true;
fiore@3: 					monitor.notify();
fiore@3: 				}
fiore@3: 			}
fiore@3: 		});
fiore@3: 		
fiore@3: 		/* starts playing the sample */
fiore@3: 		ac.out.addInput(panner);
fiore@3: 		ac.start();
fiore@3: 		return true;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public AudioFormat getAudioFormat() {
fiore@3: 		return format;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public long getTime() {
fiore@3: 		return -1L;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public float getVolume() {
fiore@3: 		return volume;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void pause() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void reset() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void resetTime() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void resume() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void setAudioFormat(AudioFormat format) {
fiore@3: 		this.format = format;
fiore@3: 		ac.setInputAudioFormat(format);
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void setVolume(float vol) {
fiore@3: 		volume = vol;
fiore@3: 	}
fiore@3: 	
fiore@3: 	public void setPan(float pan){
fiore@3: 		this.pan = pan;
fiore@3: 	}
fiore@3: 	
fiore@3: 	public float getPan(){
fiore@3: 		return pan;
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void showMetrics() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public void startFirstSampleTimer() {
fiore@3: 		
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public boolean write(byte[] audioData) {
fiore@3: 		return write(audioData,0,audioData.length);
fiore@3: 	}
fiore@3: 
fiore@3: 	@Override
fiore@3: 	public boolean write(byte[] audioData, int offset, int size) {
fiore@3: 		System.arraycopy(audioData, offset, buffer, bufferPosition, size);
fiore@3: 		bufferPosition += size;
fiore@3: 		return true;
fiore@3: 	}
fiore@3: 	
fiore@3: 	private byte[] buffer;
fiore@3: 	private int bufferPosition;
fiore@3: 	private AudioFormat format;
fiore@3: 	private float volume;
fiore@3: 	private float pan;
fiore@3: 	private Object monitor;
fiore@3: 	private boolean finished;
fiore@3: 	private AudioContext ac;
fiore@3: 
fiore@3: }