如何停止在Java中的音乐片段? [英] How to stop a music Clip in Java?
问题描述
我对游戏的一些同学的工作,我们已经相当编程的一切,但音乐直到现在。该music.java类下面贴。
I am working with some classmates on a game, we have programmed quite everything but the music until now. The music.java class is posted below.
我们必须停止我们的声音有问题,所以我需要一种方法来打,所以我们可以真正开始另一个剪辑停止这个片段,这样,我们可以在我们的游戏(在通过音乐换,当你开始这样的比赛,这首歌应该从主菜单中的不同)。有人可以帮我解决这个问题?
We have a problem stopping our sound, so I need a way to stop this clip from playing so we can actually start another clip, that way we can shift through music during our game (like when you start a game, the song should be different from the main menu). Can someone help me with this problem?
即使我可以摧毁目标做出新的,如果这是一个可能性,我愿意这样做,但我没有线索如何做到这一点。我宁愿有一个可能性,停止当前剪辑文件,并用新的更换。
Even if I can just destroy the object to make a new one, if that's a possibility, I am willing to do that, but I do not have a clue how to do this. I would rather have a possibility to Stop the current clip file, and replace it with a new one.
package sound;
import java.io.File;
import java.io.IOException;
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.FloatControl;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
public class Music implements LineListener, Runnable
{
private File soundFile;
private Thread thread;
private static Music player;
private Music audio;
private Clip clip;
private boolean stoppen = false;
/**
* Private because of the singleton
*/
public Music()
{
}
/**
* Play a siren sound
*/
public void playSiren(String musicFileName)
{
audio = getPlayer();
audio.playSirenFile(musicFileName);
}
/**
* Play the siren file
*/
private void playSirenFile(String musicFileName)
{
this.soundFile = new File("Music/"+musicFileName+".wav");
thread = new Thread(this);
thread.setName("SoundPlayer");
thread.start();
}
/**
* Invoked when the thread kicks off
*/
public void run()
{
try
{
AudioInputStream stream = AudioSystem.getAudioInputStream(this.soundFile);
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()));
this.clip = (Clip) AudioSystem.getLine(info);
this.clip.addLineListener(this);
this.clip.open(stream);
this.clip.start();
try
{
thread.sleep(99);
}
catch (Exception e)
{
}
while (clip.isActive() && thread != null)
{
try
{
thread.sleep(99);
}
catch (Exception e)
{
break;
}
}
clip.loop(999999999);
clip.drain();
}
catch (UnsupportedAudioFileException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (LineUnavailableException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static Music getPlayer()
{
if (player == null)
{
player = new Music();
}
return player;
}
public void update(LineEvent event)
{
}
public void stopClip()
{
//TODO NEED HELP HERE
}
public void startClip()
{
//TODO need help here
}
public void volume(float volume)
{
//TODO NEED HELP HERE
/*
FloatControl gainControl = (FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
gainControl.setValue(-50.0f); // Reduce volume IN DECIBELS
clip.start();
*/
}
}
东西,你可能需要知道:
Stuff you might need to know:
在我GuiController,我提出一个新的音乐对象,通过该方法playSiren我给我的SONGNAME,然后它会自动运行。
In my GuiController, I make a new Music object, through the method playSiren I give my songname, and then it automatically runs.
推荐答案
看到 DataLine.stop()
方法。 剪辑
工具的DataLine
。
import java.awt.event.*;
import javax.swing.*;
import javax.sound.sampled.*;
import java.net.URL;
class ClipControl {
public static void main(String[] args) throws Exception {
URL url = new URL("http://pscode.org/media/leftright.wav");
AudioInputStream ais = AudioSystem.getAudioInputStream(url);
final Clip clip = AudioSystem.getClip();
clip.open( ais );
Runnable r = new Runnable() {
public void run() {
final JToggleButton startStop = new JToggleButton("Stop");
startStop.addActionListener( new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if (startStop.isSelected()) {
clip.stop();
startStop.setText("Start");
} else {
clip.loop(-1);
clip.start();
startStop.setText("Stop");
}
}
} );
clip.loop(-1);
JOptionPane.showMessageDialog(null, startStop);
}
};
SwingUtilities.invokeLater(r);
}
}
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