public void Write(short[] theBuffer, UInt32 theNumberOfSamples)
{
if (waveHeaderIndex < BUFFER_MAX_COUNT - 1)
{
waveHeaderIndex++;
}
else
{
waveHeaderIndex = 0;
}
if (waveOutBuffers[waveHeaderIndex] != null)
{
waveOutBuffers[waveHeaderIndex].Dispose();
}
WaveOutBuffer aWaveOutBuffer = new WaveOutBuffer(waveOutHandle, theBuffer, theNumberOfSamples);
waveOutBuffers[waveHeaderIndex] = aWaveOutBuffer;
if (WaveOutNative.waveOutPrepareHeader(waveOutHandle, ref aWaveOutBuffer.waveHeader, Marshal.SizeOf(typeof(WaveOutNative.WaveHeader))) != 0 /* MMSYSERR_NOERROR */)
{
return;
}
sentBufferCount++;
if (WaveOutNative.waveOutWrite(waveOutHandle, ref aWaveOutBuffer.waveHeader, Marshal.SizeOf(typeof(WaveOutNative.WaveHeader))) != 0 /* MMSYSERR_NOERROR */)
{
aWaveOutBuffer.Dispose();
}
}
public void Close()
{
WaveOutNative.waveOutReset(waveOutHandle);
while (sentBufferCount > 0)
{
Thread.Sleep(10);
}
WaveOutNative.waveOutClose(waveOutHandle);
}
public void Dispose()
{
if (waveHeader.data != IntPtr.Zero)
{
WaveOutNative.waveOutUnprepareHeader(waveOutHandle, ref waveHeader, Marshal.SizeOf(waveHeader));
headerHandle.Free();
waveHeader.data = IntPtr.Zero;
}
GC.SuppressFinalize(this);
}
public WaveOutHandler()
{
waveFormat.formatTag = 1; // WAVE_FORMAT_PCM
waveFormat.channels = 2;
waveFormat.samplesPerSec = 48000;
waveFormat.bitsPerSample = 16;
waveFormat.blockAlign = (Int16)(waveFormat.channels * waveFormat.bitsPerSample / 8);
waveFormat.avgBytesPerSec = waveFormat.blockAlign * waveFormat.samplesPerSec;
waveFormat.size = 0;
isOpened = WaveOutNative.waveOutOpen(ref waveOutHandle, -1 /* WAVE_MAPPER */, ref waveFormat, dataReceived, 0, 0x00030000 /* CALLBACK_FUNCTION */) == 0 /* MMSYSERR_NOERROR */;
}
public void Reset()
{
WaveOutNative.waveOutReset(waveOutHandle);
}
