Mega Code Archive
A simple player for sampled sound files
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/*
*
* Copyright (c) 1999 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free,
* license to use, modify and redistribute this software in
* source and binary code form, provided that i) this copyright
* notice and license appear on all copies of the software; and
* ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty
* of any kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS
* AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
* HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT
* WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
* OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS
* OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY
* TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGES.
This software is not designed or intended for use in on-line
control of aircraft, air traffic, aircraft navigation or
aircraft communications; or in the design, construction,
operation or maintenance of any nuclear facility. Licensee
represents and warrants that it will not use or redistribute
the Software for such purposes.
*/
/* The above copyright statement is included because this
* program uses several methods from the JavaSoundDemo
* distributed by SUN. In some cases, the sound processing methods
* unmodified or only slightly modified.
* All other methods copyright Steve Potts, 2002
*/
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.util.Vector;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.MetaEventListener;
import javax.sound.midi.MetaMessage;
import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;
import javax.sound.midi.Sequencer;
import javax.sound.midi.Synthesizer;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
/**
* A simple player for sampled sound files.
*
* @author Steve Potts
*/
public class SimpleSoundPlayer implements Runnable, LineListener, MetaEventListener {
final int bufSize = 16384;
Vector sounds = new Vector();
Thread thread;
Sequencer sequencer;
boolean midiEOM, audioEOM;
Synthesizer synthesizer;
MidiChannel channels[];
Object currentSound;
String currentName;
double duration;
int num;
boolean bump;
boolean paused = false;
String errStr;
public void open() {
try {
sequencer = MidiSystem.getSequencer();
if (sequencer instanceof Synthesizer) {
synthesizer = (Synthesizer) sequencer;
channels = synthesizer.getChannels();
}
} catch (Exception ex) {
ex.printStackTrace();
return;
}
sequencer.addMetaEventListener(this);
}
public void close() {
if (sequencer != null) {
sequencer.close();
}
}
private void addSound(File file) {
sounds.add(file);
}
public boolean loadSound(Object object) {
duration = 0.0;
currentName = ((File) object).getName();
try {
currentSound = AudioSystem.getAudioInputStream((File) object);
} catch (Exception e1) {
try {
FileInputStream is = new FileInputStream((File) object);
currentSound = new BufferedInputStream(is, 1024);
} catch (Exception e3) {
e3.printStackTrace();
currentSound = null;
return false;
}
// }
}
// user pressed stop or changed tabs while loading
if (sequencer == null) {
currentSound = null;
return false;
}
if (currentSound instanceof AudioInputStream) {
try {
AudioInputStream stream = (AudioInputStream) currentSound;
AudioFormat format = stream.getFormat();
/**
* we can't yet open the device for ALAW/ULAW playback, convert
* ALAW/ULAW to PCM
*/
if ((format.getEncoding() == AudioFormat.Encoding.ULAW)
|| (format.getEncoding() == AudioFormat.Encoding.ALAW)) {
AudioFormat tmp = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(), format.getSampleSizeInBits() * 2, format.getChannels(),
format.getFrameSize() * 2, format.getFrameRate(), true);
stream = AudioSystem.getAudioInputStream(tmp, stream);
format = tmp;
}
DataLine.Info info = new DataLine.Info(Clip.class, stream.getFormat(), ((int) stream
.getFrameLength() * format.getFrameSize()));
Clip clip = (Clip) AudioSystem.getLine(info);
clip.addLineListener(this);
clip.open(stream);
currentSound = clip;
// seekSlider.setMaximum((int) stream.getFrameLength());
} catch (Exception ex) {
ex.printStackTrace();
currentSound = null;
return false;
}
} else if (currentSound instanceof Sequence || currentSound instanceof BufferedInputStream) {
try {
sequencer.open();
if (currentSound instanceof Sequence) {
sequencer.setSequence((Sequence) currentSound);
} else {
sequencer.setSequence((BufferedInputStream) currentSound);
}
} catch (InvalidMidiDataException imde) {
System.out.println("Unsupported audio file.");
currentSound = null;
return false;
} catch (Exception ex) {
ex.printStackTrace();
currentSound = null;
return false;
}
}
duration = getDuration();
return true;
}
public void playSound() {
midiEOM = audioEOM = bump = false;
if (currentSound instanceof Sequence || currentSound instanceof BufferedInputStream
&& thread != null) {
sequencer.start();
while (!midiEOM && thread != null && !bump) {
try {
thread.sleep(99);
} catch (Exception e) {
break;
}
}
sequencer.stop();
sequencer.close();
} else if (currentSound instanceof Clip) {
Clip clip = (Clip) currentSound;
clip.start();
try {
thread.sleep(99);
} catch (Exception e) {
}
while ((paused || clip.isActive()) && thread != null && !bump) {
try {
thread.sleep(99);
} catch (Exception e) {
break;
}
}
clip.stop();
clip.close();
}
currentSound = null;
}
public double getDuration() {
double duration = 0.0;
if (currentSound instanceof Sequence) {
duration = ((Sequence) currentSound).getMicrosecondLength() / 1000000.0;
} else if (currentSound instanceof BufferedInputStream) {
duration = sequencer.getMicrosecondLength() / 1000000.0;
} else if (currentSound instanceof Clip) {
Clip clip = (Clip) currentSound;
duration = clip.getBufferSize()
/ (clip.getFormat().getFrameSize() * clip.getFormat().getFrameRate());
}
return duration;
}
public void update(LineEvent event) {
if (event.getType() == LineEvent.Type.STOP && !paused) {
audioEOM = true;
}
}
public void meta(MetaMessage message) {
if (message.getType() == 47) { // 47 is end of track
midiEOM = true;
}
}
private void reportStatus(String msg) {
if ((errStr = msg) != null) {
System.out.println(errStr);
}
}
public Thread getThread() {
return thread;
}
public void start() {
thread = new Thread(this);
thread.setName("SimpleSamplePlayer");
thread.start();
}
public void stop() {
if (thread != null) {
thread.interrupt();
}
thread = null;
}
public void run() {
for (; num < sounds.size() && thread != null; num++) {
if (loadSound(sounds.get(num)) == true) {
playSound();
}
// take a little break between sounds
try {
thread.sleep(222);
} catch (Exception e) {
break;
}
}
num = 0;
thread = null;
currentName = null;
currentSound = null;
System.out.println("Press <ctrl-c> to exit");
}
public void loadSounds(String name) {
try {
File file = new File(name);
if (file != null && file.isDirectory()) {
String files[] = file.list();
for (int i = 0; i < files.length; i++) {
File leafFile = new File(file.getAbsolutePath(), files[i]);
addSound(leafFile);
}
}
} catch (Exception e) {
System.out.println("Exception " + e);
}
}
public static void main(String args[]) {
// every file in this directory will be played
String media = "c:/unleashed/ch18/sounds";
final SimpleSoundPlayer ssp = new SimpleSoundPlayer();
ssp.open();
// we first load the sound file names in a vector
ssp.loadSounds(media);
// Then we start a thread to play the sounds
ssp.start();
// We have to wait for a while so that the process doesn't
// terminate, killing the playing thread
try {
Thread.sleep(500000);
} catch (Exception e) {
System.out.println("Interrupted");
}
// close and exit
ssp.close();
System.exit(0);
}
}
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