public void WriteToTDSStream_MultiplePackets()
{
var innerStream = new MemoryStream();
var stream = new TDSStream(innerStream, new TimeSpan(0, 0, 30), 16)
{
CurrentOutboundMessageType = TDSClient.TDS.Header.TDSMessageType.PreLogin
};
stream.Write(new byte[]
{
0x00, 0x00, 0x1A, 0x00, 0x06, 0x01, 0x00, 0x20, 0x00, 0x01, 0x02, 0x00, 0x21, 0x00, 0x01, 0x03,
0x00, 0x22, 0x00, 0x04, 0x04, 0x00, 0x26, 0x00, 0x01, 0xFF, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0xB8, 0x0D, 0x00, 0x00, 0x01
});
CollectionAssert.AreEqual(
new byte[]
{
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x1A, 0x00, 0x06, 0x01, 0x00, 0x20,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x02, 0x00, 0x00, 0x01, 0x02, 0x00, 0x21, 0x00, 0x01, 0x03,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x03, 0x00, 0x00, 0x22, 0x00, 0x04, 0x04, 0x00, 0x26, 0x00,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x04, 0x00, 0x01, 0xFF, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
0x12, 0x01, 0x00, 0x0f, 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0xB8, 0x0D, 0x00, 0x00, 0x01
},
innerStream.ToArray());
}
public int MediaTypeChanged(ref TDSStream Stream)
{
_channels = Stream.Channels;
_frequency = Stream.Frequency;
_owner.AudioStreamInfo = Stream;
return(0);
}
/// <summary>
/// Initialization constructor
/// </summary>
public TDSParser(Stream transport)
{
// Save original transport
_originalTransport = transport;
ServerSslProtocol = SslProtocols.Tls12;
// Wrap transport layer with TDS
Transport = new TDSStream(transport, false);
}
/// <summary>
/// Initialization constructor
/// </summary>
public TDSParser(Stream transport)
{
// Save original transport
_originalTransport = transport;
ServerSslProtocol = SslProtocols.Tls12;
// Wrap transport layer with TDS
Transport = new TDSStream(transport, false);
}
public void ReadFromTDSStream_MultiplePackets()
{
var innerStream = new MemoryStream();
innerStream.Write(new byte[]
{
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x1A, 0x00, 0x06, 0x01, 0x00, 0x20,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x02, 0x00, 0x00, 0x01, 0x02, 0x00, 0x21, 0x00, 0x01, 0x03,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x03, 0x00, 0x00, 0x22, 0x00, 0x04, 0x04, 0x00, 0x26, 0x00,
0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x04, 0x00, 0x01, 0xFF, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
0x12, 0x01, 0x00, 0x0f, 0x00, 0x00, 0x05, 0x00, 0x01, 0x00, 0xB8, 0x0D, 0x00, 0x00, 0x01
});
innerStream.Seek(0, SeekOrigin.Begin);
var stream = new TDSStream(innerStream, new TimeSpan(0, 0, 30), 16);
byte[] resultBuffer = null;
var curOffset = 0;
do
{
Array.Resize(ref resultBuffer, curOffset + 2);
curOffset += stream.Read(resultBuffer, curOffset, 2);
}while (!stream.InboundMessageTerminated);
Array.Resize(ref resultBuffer, curOffset);
Console.WriteLine(string.Join(' ', resultBuffer));
CollectionAssert.AreEqual(
new byte[]
{
0x00, 0x00, 0x1A, 0x00, 0x06, 0x01, 0x00, 0x20, 0x00, 0x01, 0x02, 0x00, 0x21, 0x00, 0x01, 0x03,
0x00, 0x22, 0x00, 0x04, 0x04, 0x00, 0x26, 0x00, 0x01, 0xFF, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0xB8, 0x0D, 0x00, 0x00, 0x01
},
resultBuffer);
}
public int PCMDataCB(IntPtr Buffer, int Length, ref int NewSize, ref TDSStream Stream)
{
int numSamples = Length / (Stream.Bits / 8);
if (_owner.NumSamples != numSamples)
{
_owner.NumSamples = numSamples;
}
int samplesPerChannel = numSamples / Stream.Channels;
float[] samples = new float[numSamples];
bool streamdirty = false;
if (_numSamples != numSamples ||
_channels != Stream.Channels ||
_frequency != Stream.Frequency)
{
_channels = Stream.Channels;
_frequency = Stream.Frequency;
_numSamples = numSamples;
streamdirty = true;
}
if (streamdirty)
{
_owner.AudioStreamInfo = Stream;
}
switch (Stream.Bits)
{
case 8:
byte[] buffer8 = new byte[numSamples];
Marshal.Copy(Buffer, buffer8, 0, numSamples);
for (int j = 0; j < numSamples; j++)
{
samples[j] = buffer8[j];
}
break;
case 16:
byte[] buffer16 = new byte[numSamples * 2];
Marshal.Copy(Buffer, buffer16, 0, numSamples * 2);
var window16 = (float)(255 << 8 | 255);
for (int j = 0; j < buffer16.Length; j += 2)
{
samples[j / 2] = (buffer16[j] << 8 | buffer16[j + 1]) / window16;
}
//if (!samples.Any(s => s < 0))
//{
// for (int i = 0; i < samples.Length; i++)
// samples[i] = (samples[i]-0.5f)*2.0f;
//}
break;
case 24:
byte[] buffer24 = new byte[numSamples * 3];
Marshal.Copy(Buffer, buffer24, 0, numSamples * 3);
var window24 = (float)(255 << 16 | 255 << 8 | 255);
for (int j = 0; j < buffer24.Length; j += 3)
{
samples[j / 3] = (buffer24[j] << 16 | buffer24[j + 1] << 8 | buffer24[j + 2]) / window24;
}
break;
case 32:
if (Stream._Float)
{
byte[] buffer32f = new byte[numSamples * 4];
Marshal.Copy(Buffer, buffer32f, 0, numSamples * 4);
for (int j = 0; j < buffer32f.Length; j += 4)
{
samples[j / 4] = System.BitConverter.ToSingle(new byte[] { buffer32f[j + 0], buffer32f[j + 1], buffer32f[j + 2], buffer32f[j + 3] }, 0);
}
}
else
{
byte[] buffer32 = new byte[numSamples * 4];
Marshal.Copy(Buffer, buffer32, 0, numSamples * 4);
var window32 = (float)(255 << 24 | 255 << 16 | 255 << 8 | 255);
for (int j = 0; j < buffer32.Length; j += 4)
{
samples[j / 4] = (buffer32[j] << 24 | buffer32[j + 1] << 16 | buffer32[j + 2] << 8 | buffer32[j + 3]) / window32;
}
}
break;
}
float[] result = new float[samplesPerChannel / 2];
// 5.1 downmix to stereo
//L = clamp((FL + RL + C*0.708 + LFE*0.708) / 2)
//R = clamp((FR + RR + C*0.708 + LFE*0.708) / 2)
for (int i = 0; i < numSamples; i += Stream.Channels * 2)
{
double tmp = 0;
for (int j = 0; j < Stream.Channels; j++)
{
tmp += samples[i + j] / Stream.Channels;
}
result[i / (Stream.Channels * 2)] = GetWindowingValue((float)(tmp), i, 2048, WindowMode.wmBlackmanHarris);
}
_owner.FFTData = result;
NewSize = Length;
return(0);
}
