jmf.rar_jmf_jmf 音频_麦克风

import java.io.*; import javax.sound.sampled.*; import java.net.*; /** * Title: VoiceChat * Description: 输出音频（放音程序） * Copyright: Copyright (c) 2001 * Company: * @author 你猜！ * @version 1.0 */ class Playback implements Runnable { final int bufSize = 16384; SourceDataLine line; Thread thread; Socket s; Playback(Socket s){//构造器 取得socket以获得网络输入流 this.s=s; } public void start() { thread = new Thread(this); thread.setName("Playback"); thread.start(); } public void stop() { thread = null; } public void run() { AudioFormat format =new AudioFormat(8000,16,2,true,true);//AudioFormat(float sampleRate, int sampleSizeInBits, int channels, boolean signed, boolean bigEndian） BufferedInputStream playbackInputStream; try { playbackInputStream=new BufferedInputStream(new AudioInputStream(s.getInputStream(),format,2147483647));//封装成音频输出流，如果网络流是经过压缩的需在此加套解压流 } catch (IOException ex) { return; } DataLine.Info info = new DataLine.Info(SourceDataLine.class,format); try { line = (SourceDataLine) AudioSystem.getLine(info); line.open(format, bufSize); } catch (LineUnavailableException ex) { return; } byte[] data = new byte[1024];//此处数组的大小跟实时性关系不大，可根据情况进行调整 int numBytesRead = 0; line.start(); while (thread != null) { try{ numBytesRead = playbackInputStream.read(data); line.write(data, 0,numBytesRead); } catch (IOException e) { break; } } if (thread != null) { line.drain(); } line.stop(); line.close(); line = null; } }