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Diffstat (limited to 'portaudio/bindings/cpp/example/devs.cxx')
| -rw-r--r-- | portaudio/bindings/cpp/example/devs.cxx | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/portaudio/bindings/cpp/example/devs.cxx b/portaudio/bindings/cpp/example/devs.cxx new file mode 100644 index 0000000..5ef4cab --- /dev/null +++ b/portaudio/bindings/cpp/example/devs.cxx @@ -0,0 +1,177 @@ +#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; +} |