http://jackxiang.com/index.php zh-cn http://jackxiang.com/post// jack <xdy108@126.com> Tue, 03 Oct 2006 13:46:02 +0000 http://jackxiang.com/post// 用java实现音频捕捉java /zongfeng 发表于2005-03-06 13:43
利用线程和基本库的函数就可以实现，下一篇我会贴播放代码
package chat;

import java.io.*;
import javax.sound.sampled.*;
import java.net.*;



class Capture implements Runnable{

TargetDataLine line;
Thread thread;
Socket s;
BufferedOutputStream captrueOutputStream;

Capture(Socket s){ //构造器取得socket以获得网络输出流
this.s=s;
}

public void start(){

thread=new Thread(this);
thread.setName("Capture");
thread.start();
}

public void stop(){
thread=null;
}

public void run(){

try{
captrueOutputStream = new BufferedOutputStream(s.getOutputStream()); //建立输出流此处可以加套压缩流用来压缩数据
}
catch(IOException ex){
return;
}

AudioFormat format=new AudioFormat(8000,16,2,true,true); //AudioFormat(floatsampleRate,intsampleSizeInBits,intchannels,booleansigned, booleanbigEndian）
DataLine.Info info=new DataLine.Info(TargetDataLine.class,format);

try{
line=(TargetDataLine)AudioSystem.getLine(info);
line.open(format,line.getBufferSize());
}catch(Exception ex){
return;
}

byte[]data=new byte[1024]; //此处的1024可以情况进行调整，应跟下面的1024应保持一致
int numBytesRead=0;
line.start();

while(thread!=null){
numBytesRead=line.read(data,0,1024); //取数据（1024）的大小直接关系到传输的速度，一般越小越快，
try{
captrueOutputStream.write(data,0,numBytesRead); //写入网络流
}
catch(Exception ex){
break;
}
}

line.stop();
line.close();
line=null;

try{
captrueOutputStream.flush();
captrueOutputStream.close();
}catch(IOException ex){
ex.printStackTrace();
}
}
}

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