输出音频和捕获音频

来源：互联网发布：wireshark ubuntu 编辑：程序博客网时间：2024/05/21 09:05
构造器里的socket是用来接受来自网络的音频数据。不做网络音频可以去掉它。
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;        } } import java.io.*; import javax.sound.sampled.*; import java.net.*; /** * Title:        VoiceChat * Description:  音频捕捉（录音程序） * Copyright:    Copyright (c) 2001 * Company: * @author       你猜！ * @version 1.0 */ 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(float sampleRate, int sampleSizeInBits, int channels, boolean signed, boolean bigEndian）            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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