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#include <iostream>
#include "portaudiocpp/PortAudioCpp.hxx"
#ifdef WIN32
#include "portaudiocpp/AsioDeviceAdapter.hxx"
#endif
// ---------------------------------------------------------------------------------------
void printSupportedStandardSampleRates(
const portaudio::DirectionSpecificStreamParameters &inputParameters,
const portaudio::DirectionSpecificStreamParameters &outputParameters)
{
static double STANDARD_SAMPLE_RATES[] = {
8000.0, 9600.0, 11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0,
44100.0, 48000.0, 88200.0, 96000.0, -1 }; // negative terminated list
int printCount = 0;
for (int i = 0; STANDARD_SAMPLE_RATES[i] > 0; ++i)
{
portaudio::StreamParameters tmp = portaudio::StreamParameters(inputParameters, outputParameters, STANDARD_SAMPLE_RATES[i], 0, paNoFlag);
if (tmp.isSupported())
{
if (printCount == 0)
{
std::cout << " " << STANDARD_SAMPLE_RATES[i]; // 8.2
printCount = 1;
}
else if (printCount == 4)
{
std::cout << "," << std::endl;
std::cout << " " << STANDARD_SAMPLE_RATES[i]; // 8.2
printCount = 1;
}
else
{
std::cout << ", " << STANDARD_SAMPLE_RATES[i]; // 8.2
++printCount;
}
}
}
if (printCount == 0)
std::cout << "None" << std::endl;
else
std::cout << std::endl;
}
// ---------------------------------------------------------------------------------------
int main(int, char*[]);
int main(int, char*[])
{
try
{
portaudio::AutoSystem autoSys;
portaudio::System &sys = portaudio::System::instance();
std::cout << "PortAudio version number = " << sys.version() << std::endl;
std::cout << "PortAudio version text = '" << sys.versionText() << "'" << std::endl;
int numDevices = sys.deviceCount();
std::cout << "Number of devices = " << numDevices << std::endl;
for (portaudio::System::DeviceIterator i = sys.devicesBegin(); i != sys.devicesEnd(); ++i)
{
std::cout << "--------------------------------------- device #" << (*i).index() << std::endl;
// Mark global and API specific default devices:
bool defaultDisplayed = false;
if ((*i).isSystemDefaultInputDevice())
{
std::cout << "[ Default Input";
defaultDisplayed = true;
}
else if ((*i).isHostApiDefaultInputDevice())
{
std::cout << "[ Default " << (*i).hostApi().name() << " Input";
defaultDisplayed = true;
}
if ((*i).isSystemDefaultOutputDevice())
{
std::cout << (defaultDisplayed ? "," : "[");
std::cout << " Default Output";
defaultDisplayed = true;
}
else if ((*i).isHostApiDefaultOutputDevice())
{
std::cout << (defaultDisplayed ? "," : "[");
std::cout << " Default " << (*i).hostApi().name() << " Output";
defaultDisplayed = true;
}
if (defaultDisplayed)
std::cout << " ]" << std::endl;
// Print device info:
std::cout << "Name = " << (*i).name() << std::endl;
std::cout << "Host API = " << (*i).hostApi().name() << std::endl;
std::cout << "Max inputs = " << (*i).maxInputChannels() << ", Max outputs = " << (*i).maxOutputChannels() << std::endl;
std::cout << "Default low input latency = " << (*i).defaultLowInputLatency() << std::endl; // 8.3
std::cout << "Default low output latency = " << (*i).defaultLowOutputLatency() << std::endl; // 8.3
std::cout << "Default high input latency = " << (*i).defaultHighInputLatency() << std::endl; // 8.3
std::cout << "Default high output latency = " << (*i).defaultHighOutputLatency() << std::endl; // 8.3
#ifdef WIN32
// ASIO specific latency information:
if ((*i).hostApi().typeId() == paASIO)
{
portaudio::AsioDeviceAdapter asioDevice((*i));
std::cout << "ASIO minimum buffer size = " << asioDevice.minBufferSize() << std::endl;
std::cout << "ASIO maximum buffer size = " << asioDevice.maxBufferSize() << std::endl;
std::cout << "ASIO preferred buffer size = " << asioDevice.preferredBufferSize() << std::endl;
if (asioDevice.granularity() == -1)
std::cout << "ASIO buffer granularity = power of 2" << std::endl;
else
std::cout << "ASIO buffer granularity = " << asioDevice.granularity() << std::endl;
}
#endif // WIN32
std::cout << "Default sample rate = " << (*i).defaultSampleRate() << std::endl; // 8.2
// Poll for standard sample rates:
portaudio::DirectionSpecificStreamParameters inputParameters((*i), (*i).maxInputChannels(), portaudio::INT16, true, 0.0, NULL);
portaudio::DirectionSpecificStreamParameters outputParameters((*i), (*i).maxOutputChannels(), portaudio::INT16, true, 0.0, NULL);
if (inputParameters.numChannels() > 0)
{
std::cout << "Supported standard sample rates" << std::endl;
std::cout << " for half-duplex 16 bit " << inputParameters.numChannels() << " channel input = " << std::endl;
printSupportedStandardSampleRates(inputParameters, portaudio::DirectionSpecificStreamParameters::null());
}
if (outputParameters.numChannels() > 0)
{
std::cout << "Supported standard sample rates" << std::endl;
std::cout << " for half-duplex 16 bit " << outputParameters.numChannels() << " channel output = " << std::endl;
printSupportedStandardSampleRates(portaudio::DirectionSpecificStreamParameters::null(), outputParameters);
}
if (inputParameters.numChannels() > 0 && outputParameters.numChannels() > 0)
{
std::cout << "Supported standard sample rates" << std::endl;
std::cout << " for full-duplex 16 bit " << inputParameters.numChannels() << " channel input, " << outputParameters.numChannels() << " channel output = " << std::endl;
printSupportedStandardSampleRates(inputParameters, outputParameters);
}
}
std::cout << "----------------------------------------------" << std::endl;
}
catch (const portaudio::PaException &e)
{
std::cout << "A PortAudio error occurred: " << e.paErrorText() << std::endl;
}
catch (const portaudio::PaCppException &e)
{
std::cout << "A PortAudioCpp error occurred: " << e.what() << std::endl;
}
catch (const std::exception &e)
{
std::cout << "A generic exception occurred: " << e.what() << std::endl;
}
catch (...)
{
std::cout << "An unknown exception occurred." << std::endl;
}
return 0;
}
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