furnace/extern/portaudio-modified/bindings/cpp/example/devs.cxx

#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;
}