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Diffstat (limited to 'portaudio/test/pa_devs.c')
| -rw-r--r-- | portaudio/test/pa_devs.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/portaudio/test/pa_devs.c b/portaudio/test/pa_devs.c new file mode 100644 index 0000000..73a67cf --- /dev/null +++ b/portaudio/test/pa_devs.c @@ -0,0 +1,238 @@ +/** @file pa_devs.c + @ingroup test_src + @brief List available devices, including device information. + @author Phil Burk http://www.softsynth.com + + @note Define PA_NO_ASIO to compile this code on Windows without + ASIO support. +*/ +/* + * $Id: pa_devs.c 1097 2006-08-26 08:27:53Z rossb $ + * + * This program uses the PortAudio Portable Audio Library. + * For more information see: http://www.portaudio.com + * Copyright (c) 1999-2000 Ross Bencina and Phil Burk + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files + * (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * The text above constitutes the entire PortAudio license; however, + * the PortAudio community also makes the following non-binding requests: + * + * Any person wishing to distribute modifications to the Software is + * requested to send the modifications to the original developer so that + * they can be incorporated into the canonical version. It is also + * requested that these non-binding requests be included along with the + * license above. + */ + +#include <stdio.h> +#include <math.h> +#include "portaudio.h" + +#ifdef WIN32 +#ifndef PA_NO_ASIO +#include "pa_asio.h" +#endif +#endif + +/*******************************************************************/ +static void PrintSupportedStandardSampleRates( + const PaStreamParameters *inputParameters, + const PaStreamParameters *outputParameters ) +{ + static double standardSampleRates[] = { + 8000.0, 9600.0, 11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0, + 44100.0, 48000.0, 88200.0, 96000.0, 192000.0, -1 /* negative terminated list */ + }; + int i, printCount; + PaError err; + + printCount = 0; + for( i=0; standardSampleRates[i] > 0; i++ ) + { + err = Pa_IsFormatSupported( inputParameters, outputParameters, standardSampleRates[i] ); + if( err == paFormatIsSupported ) + { + if( printCount == 0 ) + { + printf( "\t%8.2f", standardSampleRates[i] ); + printCount = 1; + } + else if( printCount == 4 ) + { + printf( ",\n\t%8.2f", standardSampleRates[i] ); + printCount = 1; + } + else + { + printf( ", %8.2f", standardSampleRates[i] ); + ++printCount; + } + } + } + if( !printCount ) + printf( "None\n" ); + else + printf( "\n" ); +} +/*******************************************************************/ +int main(void); +int main(void) +{ + int i, numDevices, defaultDisplayed; + const PaDeviceInfo *deviceInfo; + PaStreamParameters inputParameters, outputParameters; + PaError err; + + + Pa_Initialize(); + + printf( "PortAudio version number = %d\nPortAudio version text = '%s'\n", + Pa_GetVersion(), Pa_GetVersionText() ); + + + numDevices = Pa_GetDeviceCount(); + if( numDevices < 0 ) + { + printf( "ERROR: Pa_CountDevices returned 0x%x\n", numDevices ); + err = numDevices; + goto error; + } + + printf( "Number of devices = %d\n", numDevices ); + for( i=0; i<numDevices; i++ ) + { + deviceInfo = Pa_GetDeviceInfo( i ); + printf( "--------------------------------------- device #%d\n", i ); + + /* Mark global and API specific default devices */ + defaultDisplayed = 0; + if( i == Pa_GetDefaultInputDevice() ) + { + printf( "[ Default Input" ); + defaultDisplayed = 1; + } + else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultInputDevice ) + { + const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi ); + printf( "[ Default %s Input", hostInfo->name ); + defaultDisplayed = 1; + } + + if( i == Pa_GetDefaultOutputDevice() ) + { + printf( (defaultDisplayed ? "," : "[") ); + printf( " Default Output" ); + defaultDisplayed = 1; + } + else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultOutputDevice ) + { + const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi ); + printf( (defaultDisplayed ? "," : "[") ); + printf( " Default %s Output", hostInfo->name ); + defaultDisplayed = 1; + } + + if( defaultDisplayed ) + printf( " ]\n" ); + + /* print device info fields */ + printf( "Name = %s\n", deviceInfo->name ); + printf( "Host API = %s\n", Pa_GetHostApiInfo( deviceInfo->hostApi )->name ); + printf( "Max inputs = %d", deviceInfo->maxInputChannels ); + printf( ", Max outputs = %d\n", deviceInfo->maxOutputChannels ); + + printf( "Default low input latency = %8.3f\n", deviceInfo->defaultLowInputLatency ); + printf( "Default low output latency = %8.3f\n", deviceInfo->defaultLowOutputLatency ); + printf( "Default high input latency = %8.3f\n", deviceInfo->defaultHighInputLatency ); + printf( "Default high output latency = %8.3f\n", deviceInfo->defaultHighOutputLatency ); + +#ifdef WIN32 +#ifndef PA_NO_ASIO +/* ASIO specific latency information */ + if( Pa_GetHostApiInfo( deviceInfo->hostApi )->type == paASIO ){ + long minLatency, maxLatency, preferredLatency, granularity; + + err = PaAsio_GetAvailableLatencyValues( i, + &minLatency, &maxLatency, &preferredLatency, &granularity ); + + printf( "ASIO minimum buffer size = %ld\n", minLatency ); + printf( "ASIO maximum buffer size = %ld\n", maxLatency ); + printf( "ASIO preferred buffer size = %ld\n", preferredLatency ); + + if( granularity == -1 ) + printf( "ASIO buffer granularity = power of 2\n" ); + else + printf( "ASIO buffer granularity = %ld\n", granularity ); + } +#endif /* !PA_NO_ASIO */ +#endif /* WIN32 */ + + printf( "Default sample rate = %8.2f\n", deviceInfo->defaultSampleRate ); + + /* poll for standard sample rates */ + inputParameters.device = i; + inputParameters.channelCount = deviceInfo->maxInputChannels; + inputParameters.sampleFormat = paInt16; + inputParameters.suggestedLatency = 0; /* ignored by Pa_IsFormatSupported() */ + inputParameters.hostApiSpecificStreamInfo = NULL; + + outputParameters.device = i; + outputParameters.channelCount = deviceInfo->maxOutputChannels; + outputParameters.sampleFormat = paInt16; + outputParameters.suggestedLatency = 0; /* ignored by Pa_IsFormatSupported() */ + outputParameters.hostApiSpecificStreamInfo = NULL; + + if( inputParameters.channelCount > 0 ) + { + printf("Supported standard sample rates\n for half-duplex 16 bit %d channel input = \n", + inputParameters.channelCount ); + PrintSupportedStandardSampleRates( &inputParameters, NULL ); + } + + if( outputParameters.channelCount > 0 ) + { + printf("Supported standard sample rates\n for half-duplex 16 bit %d channel output = \n", + outputParameters.channelCount ); + PrintSupportedStandardSampleRates( NULL, &outputParameters ); + } + + if( inputParameters.channelCount > 0 && outputParameters.channelCount > 0 ) + { + printf("Supported standard sample rates\n for full-duplex 16 bit %d channel input, %d channel output = \n", + inputParameters.channelCount, outputParameters.channelCount ); + PrintSupportedStandardSampleRates( &inputParameters, &outputParameters ); + } + } + + Pa_Terminate(); + + printf("----------------------------------------------\n"); + return 0; + +error: + Pa_Terminate(); + fprintf( stderr, "An error occured while using the portaudio stream\n" ); + fprintf( stderr, "Error number: %d\n", err ); + fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) ); + return err; +} |