public PortAudioInputStream(PaStreamParameters inputParameters, double sampleRate, uint framesPerBuffer, PaStreamFlags streamFlags, StreamCallback streamCallback, IntPtr userData)
: base(inputParameters.sampleFormat, inputParameters.channelCount)
{
using (var input = Factory.ToNative <PaStreamParameters> (inputParameters))
HandleError(PortAudioInterop.Pa_OpenStream(
out handle,
input.Native,
IntPtr.Zero,
sampleRate,
framesPerBuffer,
streamFlags,
ToPaStreamCallback(streamCallback, false),
userData
));
}
public PortAudioOutputStream(PaStreamParameters outputParameters, double sampleRate, uint framesPerBuffer, PaStreamFlags streamFlags, StreamCallback streamCallback, object userData)
: base(outputParameters.sampleFormat, outputParameters.channelCount)
{
var gch = userData == null ? default(GCHandle) : GCHandle.Alloc(userData, GCHandleType.Pinned);
try {
using (var output = Factory.ToNative <PaStreamParameters> (outputParameters))
HandleError(PortAudioInterop.Pa_OpenStream(
out handle,
IntPtr.Zero,
output.Native,
sampleRate,
framesPerBuffer,
streamFlags,
ToPaStreamCallback(streamCallback, true),
userData != null ? gch.AddrOfPinnedObject() : IntPtr.Zero));
} finally {
if (userData != null)
{
gch.Free();
}
}
}
public static PaErrorCode CheckIfFormatSupported(PaStreamParameters inputParameters, PaStreamParameters outputParameters, double sampleRate)
{
using (var input = Factory.ToNative <PaStreamParameters> (inputParameters))
using (var output = Factory.ToNative <PaStreamParameters> (outputParameters))
return(PortAudioInterop.Pa_IsFormatSupported(input.Native, output.Native, sampleRate));
}
