?? expaudioplayer.java
字號:
/**
基于JMF框架開發的
一個播放本地MP3的短小的程序
*/
import javax.media.*;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.MalformedURLException;
public class ExpAudioPlayer {
private Player audioPlayer = null;
public ExpAudioPlayer(URL url)
throws IOException,NoPlayerException,CannotRealizeException {
audioPlayer = Manager.createRealizedPlayer(url);
}
public ExpAudioPlayer(File file)
throws IOException,NoPlayerException,CannotRealizeException {
this(file.toURL());
}
public ExpAudioPlayer(String filename)
throws IOException,NoPlayerException,CannotRealizeException {
this(new File(filename));
}
//獲得曲目的總時間
public long getTotalTime(){
Time t=audioPlayer.getDuration();
long l=(long)(t.getSeconds());
return l;
}
//播放
public void play(){
audioPlayer.start();
}
//停止播放
public void stop(){
audioPlayer.stop();
audioPlayer.close();
}
//主程序
public static void main(String[] args){
if(args.length==0){
System.out.println("Usage:\n");
System.out.println("java ql.abs.ExpAudioPlayer filename");
return;
}
String filename=args[0];
try{
ExpAudioPlayer player=new ExpAudioPlayer(filename);
//開始播放
player.play();
//延時曲目長度,以便曲目可以正常播放完成
Thread.sleep(player.getTotalTime()*1000);
//結束播放
player.stop();
System.exit(0);
}catch (Exception e){
e.printStackTrace();
System.exit(0);
}
}
}
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