public void TalkRTPServerThread(object obj)
{
int sequenceNumber = 0;
long timestamp = 0;
short[] inputbuffer = new short[2048];
AudioPowerUpdate hander = new AudioPowerUpdate(AudioPowerUpdateHandler);
ThreadParam ap = (ThreadParam)obj;
DeviceListener.Device d = deviceListener.Find(ap.id);
if (d == null)
{
return;
}
UdpClient udpserver = new UdpClient(9999);
int port = 9999;
bool normal_mode = ap.mode.Equals("normal");
int ret;
if (normal_mode)
{
ret = deviceListener.IntercomStart(d, "0.0.0.0", port, "g711-u", "rtp", ap.volume, ap.gain, ap.inputsource, ap.aec);
}
else
{
ret = deviceListener.IntercomEmergencyStart(d, "0.0.0.0", port, "g711-u", "rtp", ap.volume, ap.gain, ap.inputsource, ap.aec);
}
if (ret != 0)
{
return;
}
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 0);
udpserver.Client.ReceiveTimeout = 3000;
byte[] bs = udpserver.Receive(ref ipep);
if (bs == null)
{
return;
}
string dev_ip = null;
int dev_port = 0;
string str = System.Text.Encoding.Default.GetString(bs);
if (str.Contains(ap.id.ToString()) == false)
{
return;
}
dev_ip = ipep.Address.ToString();
dev_port = ipep.Port;
//GroovyCodecs.G711.uLaw.ULawEncoder g711encode = new GroovyCodecs.G711.uLaw.ULawEncoder();
//GroovyCodecs.G711.uLaw.ULawDecoder g711decode = new GroovyCodecs.G711.uLaw.ULawDecoder();
SoundCardDLL.SoundCardInit(8000);
try
{
short[] micpack = new short[2048];
int micpack_length = 0;
short[] speakerpack = new short[2048];
int speakerpack_length = 0;
while (true)
{
micpack_length = 0;
speakerpack_length = 0;
if (SoundCardDLL.SoundCardWaitForInputData())
{
while (true)
{
short[] pcmbuf = SoundCardDLL.SoundCardReadFrom(160);
if (pcmbuf == null)
{
break;
}
if ((micpack_length + pcmbuf.Length) < 2048)
{
Array.Copy(pcmbuf, 0, micpack, micpack_length, pcmbuf.Length);
micpack_length += pcmbuf.Length;
}
if (checkBox1.Checked)
{
Array.Clear(pcmbuf, 0, pcmbuf.Length);
}
//byte[] ba = g711encode.Process(pcmbuf);
byte[] ba = g711.g711Encode_ulwa(pcmbuf);
RtpPacket packet = new RtpPacket(RtpPayloadType.G711_uLaw, sequenceNumber, timestamp, ba, ba.Length);
sequenceNumber++;
timestamp += ba.Length;
udpserver.Send(packet.ToArray(), packet.Length, dev_ip, dev_port);
}
}
while (udpserver.Available > 0)
{
bs = udpserver.Receive(ref ipep);
if (dev_ip.Equals(ipep.Address.ToString()))
{
RtpPacket packet = new RtpPacket(bs, bs.Length);
if (packet.PayloadType == RtpPayloadType.G711_uLaw)
{
//short[] pcmbuf1 = g711decode.Process(packet.Payload);
short[] pcmbuf1 = g711.g711Decode_ulaw(packet.Payload);
SoundCardDLL.SoundCardWriteTo(pcmbuf1);
if ((speakerpack_length + pcmbuf1.Length) < 2048)
{
Array.Copy(pcmbuf1, 0, speakerpack, speakerpack_length, pcmbuf1.Length);
speakerpack_length += pcmbuf1.Length;
}
}
}
}
double mic_db = 0;
double speaker_db = 0;
if (micpack_length > 0)
{
double a = 0;
for (int i = 0; i < micpack_length; i++)
{
a += micpack[i] * micpack[i];
}
mic_db = 20 * Math.Log10(a / (dbBase * micpack_length));
mic_db += 100;
if (mic_db < 0)
{
mic_db = 0;
}
if (mic_db > 100)
{
mic_db = 100;
}
this.Invoke(hander, Convert.ToInt32(mic_db), -1);
}
if (speakerpack_length > 0)
{
double a = 0;
for (int i = 0; i < speakerpack_length; i++)
{
a += speakerpack[i] * speakerpack[i];
}
speaker_db = 20 * Math.Log10(a / (dbBase * speakerpack_length));
speaker_db += 100;
if (speaker_db < 0)
{
speaker_db = 0;
}
if (speaker_db > 100)
{
speaker_db = 100;
}
this.Invoke(hander, -1, Convert.ToInt32(speaker_db));
}
}
}
catch (ThreadAbortException abortException)
{
if (normal_mode)
{
deviceListener.IntercomStop(d);
}
else
{
deviceListener.IntercomEmergencyStop(d);
}
//udpserver.Close();
//SoundCard.SoundCardClose();
}
finally
{
udpserver.Close();
SoundCardDLL.SoundCardClose();
}
}
