public PortAudioInputStream(int numInputChannels, PaSampleFormat sampleFormat, double sampleRate, uint framesPerBuffer, StreamCallback streamCallback, IntPtr userData)
: base(sampleFormat, numInputChannels)
{
HandleError(PortAudioInterop.Pa_OpenDefaultStream(
out handle,
numInputChannels,
0,
(IntPtr)sampleFormat,
sampleRate,
(IntPtr)framesPerBuffer,
ToPaStreamCallback(streamCallback, false),
userData
));
}
public PortAudioOutputStream(int numOutputChannels, PaSampleFormat sampleFormat, double sampleRate, uint framesPerBuffer, StreamCallback streamCallback, object userData)
: base(sampleFormat, numOutputChannels)
{
var gch = userData == null ? default(GCHandle) : GCHandle.Alloc(userData, GCHandleType.Pinned);
try {
HandleError(PortAudioInterop.Pa_OpenDefaultStream(
out handle,
0,
numOutputChannels,
(IntPtr)sampleFormat,
sampleRate,
(IntPtr)framesPerBuffer,
ToPaStreamCallback(streamCallback, true),
userData != null ? gch.AddrOfPinnedObject() : IntPtr.Zero));
} finally {
if (userData != null)
{
gch.Free();
}
}
}
