audacity/lib-src/portaudio-v19/bindings/cpp/source/portaudiocpp/InterfaceCallbackStream.cxx

#include "portaudiocpp/InterfaceCallbackStream.hxx"

#include "portaudiocpp/StreamParameters.hxx"
#include "portaudiocpp/Exception.hxx"
#include "portaudiocpp/CallbackInterface.hxx"

namespace portaudio
{

	// ---------------------------------------------------------------------------------==

	InterfaceCallbackStream::InterfaceCallbackStream()
	{
	}

	InterfaceCallbackStream::InterfaceCallbackStream(const StreamParameters &parameters, CallbackInterface &instance)
	{
		open(parameters, instance);
	}

	InterfaceCallbackStream::~InterfaceCallbackStream()
	{
		try
		{
			close();
		}
		catch (...)
		{
			// ignore all errors
		}
	}

	// ---------------------------------------------------------------------------------==

	void InterfaceCallbackStream::open(const StreamParameters &parameters, CallbackInterface &instance)
	{
		PaError err = Pa_OpenStream(&stream_, parameters.inputParameters().paStreamParameters(), parameters.outputParameters().paStreamParameters(), 
			parameters.sampleRate(), parameters.framesPerBuffer(), parameters.flags(), &impl::callbackInterfaceToPaCallbackAdapter, static_cast<void *>(&instance));

		if (err != paNoError)
		{
			throw PaException(err);
		}
	}
}