代码如下：
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.SourceDataLine;
import javax.sound.sampled.DataLine;
import javax.swing.*;
public class soundbase implements Runnable{
private static final int BUFFER_SIZE=1024;
private String fileToPlay=null;
private static boolean threadExit=false;
private static boolean stopped=true;
private static boolean paused=false;
private static boolean playing=false;
public static Object synch=new Object();
private Thread playerThread=null;
public soundbase(String filename){
fileToPlay=filename;
}
public soundbase(){
fileToPlay="default.wav";
}
public void run(){
while(!threadExit){
waitforSignal();
if(!stopped)
playMusic();
}
}
public void endThread(){
threadExit=true;
synchronized(synch){
synch.notifyAll();
}
try{
Thread.sleep(500);
}catch(Exception ex){}
}
public void waitforSignal(){
try{
synchronized(synch){
synch.wait();
}
} catch(Exception ex){}
}
public void play(){
if ((!stopped)||(paused))return;
if(playerThread==null){
playerThread=new Thread(this);
playerThread.start();
try{
Thread.sleep(500);
}catch(Exception ex){}
}
synchronized(synch){
stopped=false;
paused=false;
synch.notifyAll();
}
}
public void setFileToPlay(String fname){
fileToPlay=fname;
}
public void playfile(String fname){
setFileToPlay(fname);
play();
}
public void playMusic(){
byte[] audioData=new byte[BUFFER_SIZE];
AudioInputStream ais=null;
SourceDataLine line=null;
AudioFormat baseFormat=null;
try{
ais=AudioSystem.getAudioInputStream(new File(fileToPlay));
}catch (Exception e){
JOptionPane.showMessageDialog(null, "打开文件失败");
}
if (ais !=null){
baseFormat=ais.getFormat();
line=getLine(baseFormat);
if (line==null){
AudioFormat decodedFormat=new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
baseFormat.getSampleRate(),16,
baseFormat.getChannels(),
baseFormat.getChannels()*2,
baseFormat.getSampleRate(),false
);
ais =AudioSystem.getAudioInputStream(decodedFormat,ais);
line=getLine(decodedFormat);
}
}
if(line==null)return;
playing=true;
line.start();
int inBytes=0;
while ((inBytes!=-1)&&(!stopped)&&(!threadExit)){
try {
inBytes=ais.read(audioData,0,BUFFER_SIZE);
}catch (IOException e){
JOptionPane.showMessageDialog(null,"无法读取");
}
try{
if(inBytes>0)
line.write(audioData,0, inBytes);
}catch(Exception e){
JOptionPane.showMessageDialog(null,"无法输出");
}
if (paused)
waitforSignal();
}
line.drain();
line.stop();
line.close();
playing=false;
stopped=true;
paused=false;
}
public void stop(){
paused=false;
stopped=true;
waitForPlayToStop();
}
public void waitForPlayToStop(){
while(playing)
try{
Thread.sleep(500);
synchronized(synch){
synch.notifyAll();
}
}catch (Exception ex){}
}
public void pause(){
if(stopped)return;
synchronized(synch){
paused=true;
synch.notifyAll();
}
}public void resume(){
if(stopped)return;
synchronized(synch){
paused=false;
synch.notifyAll();
}
}
private SourceDataLine getLine(AudioFormat audioFormat){
SourceDataLine res=null;
DataLine.Info info=new DataLine.Info(SourceDataLine.class,audioFormat);
try{
res=(SourceDataLine) AudioSystem.getLine(info);
res.open(audioFormat);
}catch(Exception e){
res=null;
}return res;
}
} |
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