我试图创建一个Speex Voip客户端和服务器。我通过UDP了解了基础知识,并在本地机器上正常工作。我使用JSpeex来实现可移植性。我正在寻找关于创建客户端和服务器的提示。你怎么看?帮助创建一个Speex Voip服务器和客户端
的JSpeex库只能编码每次调用320个字节,因此向服务器发送数据包是微小的(在我的情况〜244个字节)。客户端在发送之前等待大约1或2 KB的编码数据是否准备就绪,或者让服务器处理缓冲数据包会更好吗?
此外,在如何实现缓冲数据的任何帮助将是不错的。
一些什么,我有一个在本地计算机上工作。
客户:
public void run() {
int nBytesToRead = (m_inputAudioFormat.getFrameSize() * 160);
int nAvailable = 0;
byte[] abPCMData = new byte[nBytesToRead];
byte[] abSpeexData = null;
UserSpeexPacket userSpeexPacket = new UserSpeexPacket("Xiphias3", "TheLounge", null, 0);
while (m_captureThread != null) {
nAvailable = m_line.available();
if (nAvailable >= nBytesToRead) {
int nBytesRead = m_line.read(abPCMData, 0, nBytesToRead);
if (nBytesRead == -1) break;
if (nBytesRead < nBytesToRead)
Arrays.fill(abPCMData, nBytesRead, abPCMData.length, (byte) 0);
abSpeexData = createSpeexPacketFromPCM(abPCMData, 0, abPCMData.length);
//DatagramPacket packet = new DatagramPacket(abSpeexData, 0, abSpeexData.length, m_connection.getInetAddress(), m_nServerPort);
userSpeexPacket.setSpeexData(abSpeexData);
userSpeexPacket.incrementPacketNumber();
DatagramPacket packet = UserSpeexPacket.userSpeexPacketToDatagramPacket(m_connection.getInetAddress(), m_connection.getPort(), userSpeexPacket);
try {
m_connection.send(packet);
}
catch(IOException iox) {
System.out.println("Connection to server lost: " + iox.getMessage());
break;
}
}
}
closeLine();
disconnect();
}
public byte[] createSpeexPacketFromPCM(byte[] abPCMData, int nOffset, int nLength)
{
byte[] abEncodedData = null;
m_speexEncoder.processData(abPCMData, nOffset, nLength);
abEncodedData = new byte[m_speexEncoder.getProcessedDataByteSize()];
m_speexEncoder.getProcessedData(abEncodedData, 0);
return abEncodedData;
}
服务器:
DatagramPacket packet = new DatagramPacket(new byte[2048], 0, 2048);
byte[] abPCMData = null;
long lPrevVolPrintTime = 0;
while (m_bServerRunning) {
try {
m_serverSocket.receive(packet);
//System.out.println("Packet size is " + packet.getData().length);
//System.out.println("Got packet from " + packet.getAddress().getHostAddress());
//abPCMData = decodeSpeexPacket(packet.getData(), 0, packet.getLength());
UserSpeexPacket usp = UserSpeexPacket.datagramPacketToUserSpeexPacket(packet);
abPCMData = decodeSpeexPacket(usp.getSpeexData(), 0, usp.getSpeexData().length);
m_srcDataLine.write(abPCMData, 0, abPCMData.length);
if (System.currentTimeMillis() >= (lPrevVolPrintTime + 500)) {
//System.out.println("Current volume: " + AudioUtil.getVolumeLevelForPCM22050Hz16Bit1Channel(abPCMData, 0, abPCMData.length));
lPrevVolPrintTime = System.currentTimeMillis();
}
}
catch (IOException iox) {
if (m_bServerRunning) {
System.out.println("Server socket broke: " + iox.getMessage());
stopServer();
}
}
}
感谢您的输入。我喜欢! – Xiphias3 2010-10-23 20:58:03