私は、マイクから音声を録音し、リアルタイムでこの音声データを別のコンピューター システムに送信したい Java デスクトップ アプリケーションを作成しています。
マイクを介してサウンドを録音し、システムのスピーカーに出力できます。現在、UDP データグラム ソケットを使用してこれと同じことを行いたいと考えていますが、データ ストリーム (byte[]) は UDPServer によって受信されません。
ここにコードがあります: VUClient.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.sound.sampled.*;
public class VUClient extends JFrame {
boolean stopaudioCapture = false;
ByteArrayOutputStream byteOutputStream;
AudioFormat adFormat;
TargetDataLine targetDataLine;
AudioInputStream InputStream;
SourceDataLine sourceLine;
Graphics g;
public static void main(String args[]) {
new VUClient();
}
public VUClient() {
final JButton capture =
new JButton("Capture");
final JButton stop =
new JButton("Stop");
final JButton play =
new JButton("Playback");
capture.setEnabled(true);
stop.setEnabled(false);
play.setEnabled(false);
capture.addActionListener(
new ActionListener() {
public void actionPerformed(
ActionEvent e) {
capture.setEnabled(false);
stop.setEnabled(true);
play.setEnabled(false);
captureAudio();
}
});
getContentPane().add(capture);
stop.addActionListener(
new ActionListener() {
public void actionPerformed(
ActionEvent e) {
capture.setEnabled(true);
stop.setEnabled(false);
play.setEnabled(true);
stopaudioCapture = true;
targetDataLine.close();
}
});
getContentPane().add(stop);
play.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(
ActionEvent e) {
playAudio();
}
});
getContentPane().add(play);
getContentPane().setLayout(new FlowLayout());
setTitle("Capture/Playback Demo");
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(400, 100);
getContentPane().setBackground(Color.white);
setVisible(true);
g = (Graphics) this.getGraphics();
}
private void captureAudio() {
try {
adFormat = getAudioFormat();
DataLine.Info dataLineInfo = new DataLine.Info(TargetDataLine.class, adFormat);
targetDataLine = (TargetDataLine) AudioSystem.getLine(dataLineInfo);
targetDataLine.open(adFormat);
targetDataLine.start();
Thread captureThread = new Thread(new CaptureThread());
captureThread.start();
} catch (Exception e) {
StackTraceElement stackEle[] = e.getStackTrace();
for (StackTraceElement val : stackEle) {
System.out.println(val);
}
System.exit(0);
}
}
private void playAudio() {
try {
byte audioData[] = byteOutputStream.toByteArray();
// System.out.println("byte auto "+byteOutputStream.toString());
InputStream byteInputStream = new ByteArrayInputStream(audioData);
AudioFormat adFormat = getAudioFormat();
InputStream = new AudioInputStream(byteInputStream, adFormat, audioData.length / adFormat.getFrameSize());
DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, adFormat);
sourceLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
sourceLine.open(adFormat);
sourceLine.start();
Thread playThread = new Thread(new PlayThread());
playThread.start();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}
}
private AudioFormat getAudioFormat() {
float sampleRate = 8000.0F;
int sampleInbits = 16;
int channels = 1;
boolean signed = true;
boolean bigEndian = false;
return new AudioFormat(sampleRate, sampleInbits, channels, signed, bigEndian);
}
class CaptureThread extends Thread {
byte tempBuffer[] = new byte[10000];
public void run() {
byteOutputStream = new ByteArrayOutputStream();
stopaudioCapture = false;
try {
DatagramSocket clientSocket = new DatagramSocket();
// InetAddress IPAddress = InetAddress.getByName("192.168.64.142");
InetAddress IPAddress = InetAddress.getByName("localhost");
while (!stopaudioCapture) {
int cnt = targetDataLine.read(tempBuffer, 0, tempBuffer.length);
if (cnt > 0) {
DatagramPacket sendPacket = new DatagramPacket(tempBuffer, tempBuffer.length, IPAddress, 9876);
clientSocket.send(sendPacket);
byteOutputStream.write(tempBuffer, 0, cnt);
// System.out.print(cnt);
}
// DatagramPacket sendPacket = new DatagramPacket(byteOutputStream, 10000, IPAddress, 9876);
// clientSocket.send(sendPacket);
}
byteOutputStream.close();
} catch (Exception e) {
System.out.println("CaptureThread::run()" + e);
System.exit(0);
}
}
}
class PlayThread extends Thread {
byte tempBuffer[] = new byte[10000];
public void run() {
try {
// DatagramSocket clientSocket = new DatagramSocket();
// InetAddress IPAddress = InetAddress.getByName("192.168.64.142");
// InetAddress IPAddress = InetAddress.getByName("localhost");
int cnt;
while ((cnt = InputStream.read(tempBuffer, 0,tempBuffer.length)) != -1) {
if (cnt > 0) {
// DatagramPacket sendPacket = new DatagramPacket(tempBuffer, tempBuffer.length, IPAddress, 9876);
// clientSocket.send(sendPacket);
// sourceLine.write(tempBuffer, 0, cnt);
}
}
// sourceLine.drain();
// sourceLine.close();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}
}
}
}// Class End
VUServer.java
import java.io.*;
import java.net.*;
import javax.sound.sampled.*;
public class VUServer {
ByteArrayOutputStream byteOutputStream;
AudioFormat adFormat;
TargetDataLine targetDataLine;
AudioInputStream InputStream;
SourceDataLine sourceLine;
private AudioFormat getAudioFormat() {
float sampleRate = 8000.0F;
int sampleInbits = 16;
int channels = 1;
boolean signed = true;
boolean bigEndian = false;
return new AudioFormat(sampleRate, sampleInbits, channels, signed, bigEndian);
}
public static void main(String args[]) {
new VUServer().runVOIP();
}
public void runVOIP() {
try {
DatagramSocket serverSocket = new DatagramSocket(9876);
byte[] receiveData = new byte[10000];
while (true) {
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
serverSocket.receive(receivePacket);
// String sentence = new String(receivePacket.getData());
System.out.println("RECEIVED: ");// + sentence);
try {
byte audioData[] = receivePacket.getData();//byteOutputStream.toByteArray();
// System.out.println("byte auto "+byteOutputStream.toString());
InputStream byteInputStream = new ByteArrayInputStream(audioData);
AudioFormat adFormat = getAudioFormat();
InputStream = new AudioInputStream(byteInputStream, adFormat, audioData.length / adFormat.getFrameSize());
DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, adFormat);
sourceLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
sourceLine.open(adFormat);
sourceLine.start();
Thread playThread = new Thread(new PlayThread());
playThread.start();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
class PlayThread extends Thread {
byte tempBuffer[] = new byte[10000];
public void run() {
try {
int cnt;
while ((cnt = InputStream.read(tempBuffer, 0,tempBuffer.length)) != -1) {
if (cnt > 0) {
sourceLine.write(tempBuffer, 0, cnt);
}
}
sourceLine.drain();
sourceLine.close();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}
}
}
}