import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.IOException;
import java.lang.Integer;
import java.util.Hashtable;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Receiver;
import javax.sound.midi.Sequence;
import javax.sound.midi.Sequencer;
import javax.sound.midi.Synthesizer;
import javax.sound.midi.Track;
import javax.sound.midi.Transmitter;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.swing.*;
import javax.swing.BoxLayout;
import javax.swing.border.TitledBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import quicktime.std.movies.media.MPEGMedia;
/**
*
* @author Amol
*/
public class AsoundPlayer extends JComponent {
boolean midi;
Sequence sequence;
Sequencer sequencer;
Clip clip;
boolean playing = false;
int audioLength;
int audioPosition = 0;
JButton play;
JSlider progress;
JLabel time;
Timer timer;
public static void main(String[ ] args)
throws IOException,
UnsupportedAudioFileException,
LineUnavailableException,
MidiUnavailableException,
InvalidMidiDataException
{
AsoundPlayer player;
File file = new File("C:/Users/Amol/Documents/NetBeansProjects/Chapter23/src/chapter23/trippygaia1.mid");
boolean ismidi;
try {
MidiSystem.getMidiFileFormat(file);
ismidi = true;
}
catch(InvalidMidiDataException e) {
ismidi = false;
}
player = new AsoundPlayer(file, ismidi);
JFrame f = new JFrame("SoundPlayer");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane( ).add(player, "Center");
f.pack( );
f.setVisible(true);
}
public AsoundPlayer(File f, boolean isMidi)
throws IOException,
UnsupportedAudioFileException,
LineUnavailableException,
MidiUnavailableException,
InvalidMidiDataException
{
if (isMidi) {
midi = true;
sequencer = MidiSystem.getSequencer( );
sequencer.open( );
Synthesizer synth = MidiSystem.getSynthesizer( );
synth.open( );
Transmitter transmitter = sequencer.getTransmitter( );
Receiver receiver = synth.getReceiver( );
transmitter.setReceiver(receiver);
sequence = MidiSystem.getSequence(f);
sequencer.setSequence(sequence);
audioLength=(int) sequence.getTickLength();
}
else {
midi = false;
AudioInputStream ain = AudioSystem.getAudioInputStream(f);
try {
DataLine.Info info =
new DataLine.Info(Clip.class,ain.getFormat( ));
clip = (Clip) AudioSystem.getLine(info);
clip.open(ain);
}
finally {
ain.close( );
}
audioLength = (int)(clip.getMicrosecondLength( )/1000);
}
play = new JButton("Play");
progress = new JSlider(0, audioLength, 0);
time = new JLabel("0");
play.addActionListener(new ActionListener( ) {
public void actionPerformed(ActionEvent e) {
if (playing) stop(); else play();
}
});
progress.addChangeListener(new ChangeListener( ) {
public void stateChanged(ChangeEvent e) {
int value = progress.getValue( );
if (midi) time.setText(value + "");
else time.setText(value/1000 + "." +
(value%1000)/100);
if (value != audioPosition) skip(value);
}
});
timer = new javax.swing.Timer(100, new ActionListener( ) {
public void actionPerformed(ActionEvent e) { tick( ); }
});
Box row = Box.createHorizontalBox( );
row.add(play);
row.add(progress);
row.add(time);
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
this.add(row);
if (midi) addMidiControls( );
else addSampledControls( );
}
public void play(){
if(midi){
sequencer.start();
}else
clip.start();
timer.start();
play.setText("Stop");
playing=true;
}
public void stop(){
timer.stop();
if(midi){
sequencer.stop();
play.setText("Play");
playing=false;
}
}
public void reset(){
stop();
if(midi){
sequencer.setTickPosition(0);
}
else clip.setMicrosecondPosition(0);
audioPosition=0;
progress.setValue(0);
}
public void skip(int position){
if(position<0||position>audioLength)
return;
audioPosition = position;
if(midi)
sequencer.setTickPosition(position);
else
clip.setMicrosecondPosition(position*1000);
progress.setValue(position);
}
public int getLength(){
return audioLength;
}
public void tick(){
if(midi && sequencer.isRunning()){
audioPosition=(int) sequencer.getTickPosition();
progress.setValue(audioPosition);
}else if(!midi&& clip.isActive()){
audioPosition=(int) (clip.getMicrosecondPosition()/1000);
progress.setValue(audioPosition);
}
else reset();
}
public void addSampledControls(){
try {
FloatControl gainControl=(FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
if(gainControl !=null){
this.add(createSlider(gainControl));
}
}
catch (Exception e) {
}
try {
FloatControl panControl= (FloatControl) clip.getControl(FloatControl.Type.PAN);
if(panControl !=null)
this.add(createSlider(panControl));
} catch (Exception e) {
}
}
JSlider createSlider(final FloatControl c){
if(c==null)return null;
final JSlider s=new JSlider(0, 1000);
final float min =c.getMinimum();
final float max=c.getMaximum();
final float width=max-min;
float fval=c.getValue();
s.setValue((int) ((fval - min) / width * 1000));
Hashtable<Integer,JLabel>labels=new Hashtable<Integer,JLabel>();
labels.put(new Integer(0),new JLabel(c.getMinLabel()));
labels.put(new Integer(500), new JLabel(c.getMidLabel()));
labels.put(new Integer(1000), new JLabel(c.getMaxLabel()));
s.setLabelTable(labels);
s.setPaintLabels(true);
s.setBorder(new TitledBorder(c.getType().toString()+""+c.getUnits()));
s.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
int i = s.getValue();
float f=min+(i*width/1000.0f);
c.setValue(f);
}
});
return s;
}
void addMidiControls(){
final JSlider tempo=new JSlider(50, 200);
tempo.setValue((int) (sequencer.getTempoFactor()*100));
tempo.setBorder(new TitledBorder("Tempo Adjustment (%)"));
Hashtable labels=new Hashtable();
labels.put(new Integer(50),new JLabel("50%"));
labels.put(new Integer(100),new JLabel("100%"));
labels.put(new Integer(200),new JLabel("200%"));
tempo.setLabelTable(labels);
tempo.setPaintLabels(true);
tempo.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
sequencer.setTempoFactor(tempo.getValue()/100.0f);
}
});
this.add(tempo);
Track[] tracks=sequence.getTracks();
for(int i=0;i<tracks.length;i++){
final int tracknum=i;
final JCheckBox solo=new JCheckBox("solo");
final JCheckBox mute=new JCheckBox("mute");
solo.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sequencer.setTrackSolo(tracknum,solo.isSelected());
}
});
mute.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sequencer.setTrackMute(tracknum,mute.isSelected());
}
});
Box box = Box.createHorizontalBox();
box.add(new JLabel("Track"+tracknum));
box.add(box.createHorizontalStrut(10));
box.add(solo);
box.add(mute);
box.add(Box.createVerticalGlue());
this.add(box);
}
}
}
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