private IWaveBuffer GetWaveBuffer(uint size)
{
IWaveBuffer waveBuffer = null;
m_waveBufferMutex.WaitOne();
var count = m_waveBuffers.Count;
//Debug.WriteLine(count);
if (m_waveBuffers.Count > 0)
{
waveBuffer = m_waveBuffers[0];
m_waveBuffers.RemoveAt(0);
}
m_waveBufferMutex.ReleaseMutex();
// check if the current wavebuffer is the right size
if (waveBuffer != null)
{
if (waveBuffer.ByteBuffer.Length != size)
{
waveBuffer = null;
}
}
if (waveBuffer == null)
{
var byteArray = new byte[size];
waveBuffer = new WaveBuffer(byteArray);
}
return(waveBuffer);
}
private void OnAudioInput(IWaveBuffer waveBuffer)
{
try
{
m_audioOutput.Send(waveBuffer.ByteBuffer);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
public float GetRms(IWaveBuffer waveBuffer)
{
if (waveBuffer.ShortBufferCount == 0)
{
return(0.0f);
}
long squareSum = 0;
for (var i = 0; i < waveBuffer.ShortBufferCount; i++)
{
squareSum += waveBuffer.ShortBuffer[i] * waveBuffer.ShortBuffer[i];
}
var rms = (float)Math.Sqrt((double)squareSum / waveBuffer.ShortBufferCount) / short.MaxValue;
return(rms);
}
public void ReturnWaveBuffer(IWaveBuffer waveBuffer)
{
m_waveBufferMutex.WaitOne();
m_waveBuffers.Add(waveBuffer);
m_waveBufferMutex.ReleaseMutex();
}
private WaveBufferReader(IWaveBuffer buffer)
{
m_waveBuffer = buffer;
m_bytesRemaining = m_waveBuffer.ByteBuffer.Length;
m_readIndex = 0;
}
