/// <summary>
/// Creates a new Wave input stream
/// </summary>
/// <param name="deviceNumber">The device to open - 0 is default</param>
/// <param name="desiredFormat">The PCM format to record in</param>
/// <param name="callbackWindow">If this parameter is non-null, the Wave In Messages
/// will be sent to the message loop of the supplied control. This is considered a
/// safer way to use the waveIn functionality</param>
public WaveInStream(int deviceNumber, WaveFormat desiredFormat, Control callbackWindow)
{
waveFormat = desiredFormat;
callback = Callback;
if (callbackWindow == null)
{
MmException.Try(
WaveInterop.waveInOpen(out waveInHandle, (IntPtr) deviceNumber, desiredFormat, callback, IntPtr.Zero,
WaveInterop.CallbackFunction), "waveInOpen");
}
else
{
waveInWindow = new WaveWindowNative(callback);
MmException.Try(
WaveInterop.waveInOpenWindow(out waveInHandle, (IntPtr) deviceNumber, desiredFormat, callbackWindow.Handle,
IntPtr.Zero, WaveInterop.CallbackWindow), "waveInOpen");
waveInWindow.AssignHandle(callbackWindow.Handle);
}
// Default to three buffers of 100ms each
int bufferSize = desiredFormat.AverageBytesPerSecond/10;
numBuffers = 3;
buffers = new WaveInBuffer[numBuffers];
for (int n = 0; n < numBuffers; n++)
{
buffers[n] = new WaveInBuffer(waveInHandle, bufferSize);
}
}
/// <summary>
/// Creates a new Wave input stream
/// </summary>
/// <param name="deviceNumber">The device to open - 0 is default</param>
/// <param name="desiredFormat">The PCM format to record in</param>
/// <param name="callbackWindow">If this parameter is non-null, the Wave In Messages
/// will be sent to the message loop of the supplied control. This is considered a
/// safer way to use the waveIn functionality</param>
public WaveInStream(int deviceNumber, WaveFormat desiredFormat, Control callbackWindow)
{
waveFormat = desiredFormat;
callback = Callback;
if (callbackWindow == null)
{
MmException.Try(
WaveInterop.waveInOpen(out waveInHandle, (IntPtr)deviceNumber, desiredFormat, callback, IntPtr.Zero,
WaveInterop.CallbackFunction), "waveInOpen");
}
else
{
waveInWindow = new WaveWindowNative(callback);
MmException.Try(
WaveInterop.waveInOpenWindow(out waveInHandle, (IntPtr)deviceNumber, desiredFormat, callbackWindow.Handle,
IntPtr.Zero, WaveInterop.CallbackWindow), "waveInOpen");
waveInWindow.AssignHandle(callbackWindow.Handle);
}
// Default to three buffers of 100ms each
int bufferSize = desiredFormat.AverageBytesPerSecond / 10;
numBuffers = 3;
buffers = new WaveInBuffer[numBuffers];
for (int n = 0; n < numBuffers; n++)
{
buffers[n] = new WaveInBuffer(waveInHandle, bufferSize);
}
}
private void CreateBuffers()
{
// Default to three buffers of 100ms each
int bufferSize = BufferMilliseconds*WaveFormat.AverageBytesPerSecond/1000;
buffers = new WaveInBuffer[NumberOfBuffers];
for (int n = 0; n < buffers.Length; n++)
{
buffers[n] = new WaveInBuffer(waveInHandle, bufferSize);
}
}