我成功地通过TCP套接字发送和读取文本和图像数据。但我无法发送和读取音频流数据。
服务器上的示例代码：
public class ServerAudio {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
ServerSocket serverSocker = new ServerSocket();
Socket client = null;
serverSocker.bind(new InetSocketAddress(6666));
if (serverSocker.isBound()) {
client = serverSocker.accept();
OutputStream out = client.getOutputStream();
while (true) {
AudioInputStream ain = testPlay("C:/Users/Public/Music/Sample Music/adios.wav");
if (ain != null) {
AudioSystem.write(ain, AudioFileFormat.Type.WAVE, out);
}
}
}
serverSocker.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static AudioInputStream testPlay(String filename) {
AudioInputStream din = null;
try {
File file = new File(filename);
AudioInputStream in = AudioSystem.getAudioInputStream(file);
System.out.println("Before :: " + in.available());
AudioFormat baseFormat = in.getFormat();
AudioFormat decodedFormat =
new AudioFormat(AudioFormat.Encoding.PCM_UNSIGNED, baseFormat.getSampleRate(),
8, baseFormat.getChannels(), baseFormat.getChannels(),
baseFormat.getSampleRate(), false);
din = AudioSystem.getAudioInputStream(decodedFormat, in);
System.out.println("After :: " + din.available());
return din;
} catch (Exception e) {
// Handle exception.
e.printStackTrace();
}
return din;
}
}
客户端的示例代码：
public class RDPPlayAudioBytes {
private static Socket socket;
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
// SocketAddress socketAddress = new InetSocketAddress("172.19.1.50", 4444);
try {
Socket socket = new Socket("172.19.0.109", 6666);
// socket.connect(socketAddress, 10000);
if (socket != null && socket.isConnected()) {
InputStream inputStream = socket.getInputStream();
// DataInputStream din=new DataInputStream(inputStream);
while (inputStream != null) {
if (inputStream.available() > 0) {
System.out.println(inputStream.available());
InputStream bufferedIn = new BufferedInputStream(inputStream);
System.out.println("********** Buffred *********" + bufferedIn.available());
AudioInputStream ais = AudioSystem.getAudioInputStream(bufferedIn);
}
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} /*
* catch (LineUnavailableException e) { // TODO Auto-generated catch block
* e.printStackTrace(); }
*/catch (UnsupportedAudioFileException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
我在哪里得到例外
javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input stream
at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source)
我观察到服务器正在向客户端发送35394字节数据，但在客户端，我们正在接收8192字节数据。我无法理解为什么客户端缺少字节。
请帮我如何通过TCP套接字发送音频流。
服务器：服务器只传输声音文件的字节。没有涉及AudioSytem。将声音文件作为参数传递：
java AudioServer "C:/Users/Public/Music/Sample Music/adios.wav"
AudioServer类的代码：
import java.io.*;
import java.net.*;
public class AudioServer {
public static void main(String[] args) throws IOException {
if (args.length == 0)
throw new IllegalArgumentException("expected sound file arg");
File soundFile = AudioUtil.getSoundFile(args[0]);
System.out.println("server: " + soundFile);
try (ServerSocket serverSocker = new ServerSocket(6666);
FileInputStream in = new FileInputStream(soundFile)) {
if (serverSocker.isBound()) {
Socket client = serverSocker.accept();
OutputStream out = client.getOutputStream();
byte buffer[] = new byte[2048];
int count;
while ((count = in.read(buffer)) != -1)
out.write(buffer, 0, count);
}
}
System.out.println("server: shutdown");
}
}
客户端：客户端可以播放通过命令行传递的声音文件，以便进行测试：
java AudioClient "C:/Users/Public/Music/Sample Music/adios.wav"
在没有参数的情况下调用它连接到服务器并播放通过Socket接收的文件：
java AudioClient
码：
import java.io.*;
import java.net.*;
import javax.sound.sampled.*;
public class AudioClient {
public static void main(String[] args) throws Exception {
if (args.length > 0) {
// play a file passed via the command line
File soundFile = AudioUtil.getSoundFile(args[0]);
System.out.println("Client: " + soundFile);
try (BufferedInputStream in = new BufferedInputStream(new FileInputStream(soundFile))) {
play(in);
}
}
else {
// play soundfile from server
System.out.println("Client: reading from 127.0.0.1:6666");
try (Socket socket = new Socket("127.0.0.1", 6666)) {
if (socket.isConnected()) {
InputStream in = new BufferedInputStream(socket.getInputStream());
play(in);
}
}
}
System.out.println("Client: end");
}
private static synchronized void play(final InputStream in) throws Exception {
AudioInputStream ais = AudioSystem.getAudioInputStream(in);
try (Clip clip = AudioSystem.getClip()) {
clip.open(ais);
clip.start();
Thread.sleep(100); // given clip.drain a chance to start
clip.drain();
}
}
}
AudioServer和AudioClient使用的实用程序类：
import java.io.File;
public class AudioUtil {
public static File getSoundFile(String fileName) {
File soundFile = new File(fileName);
if (!soundFile.exists() || !soundFile.isFile())
throw new IllegalArgumentException("not a file: " + soundFile);
return soundFile;
}
}
TCP可靠时将完全接收字节。还有一个小问题。您需要播放音频流中接收的音频，只创建音频输入流不会播放。可以存在用于播放所接收的音频的不同可能技术。您可以使用Java Sound API中的Clip或SourceDataLine。另外，不要多次创建AudioInputStream。只需创建一次并使用它。
这是您可以用来播放接收音频的可能解决方案之一。
public class RDPPlayAudioBytes {
private static Socket socket;
private static BufferedInputStream inputStream;
/**
* @param args
* @throws javax.sound.sampled.LineUnavailableException
*/
public static void main(String[] args) throws LineUnavailableException {
// TODO Auto-generated method stub
// SocketAddress socketAddress = new InetSocketAddress("172.19.1.50", 4444);
try {
socket = new Socket("127.0.0.1", 6666);
if (socket.isConnected()) {
inputStream = new BufferedInputStream(socket.getInputStream());
Clip clip = AudioSystem.getClip();
AudioInputStream ais = AudioSystem.getAudioInputStream(inputStream);
clip.open(ais);
clip.start();
while (inputStream != null) {
if (clip.isActive()) {
System.out.println("********** Buffred *********" + inputStream.available());
}
}
}
} catch (IOException | UnsupportedAudioFileException e) {
System.err.println(e);
}
}
}
您可能需要根据您的要求实施不同的实施方案。这只是演示如何使用AudioInputStream使用Clip播放音频。您可能会注意到我发布的代码中有很多更改。我希望你能理解这一点。
您可以参考Java Sound API文档，深入了解playing audio的基础知识。
注意：