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DependentExtensions/portaudio_v18_1/pa_tests/pa_devs.c Normal file
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/*
* $Id: pa_devs.c,v 1.1.1.1.4.1 2003/02/11 21:41:32 philburk Exp $
* pa_devs.c
* List available devices.
*
* Author: Phil Burk http://www.softsynth.com
*
* 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.
*
* 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.
*
* 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.
*
*/
#include <stdio.h>
#include <math.h>
#include "portaudio.h"
/*******************************************************************/
int main(void);
int main(void)
{
int i,j;
int numDevices;
const PaDeviceInfo *pdi;
PaError err;
Pa_Initialize();
numDevices = Pa_CountDevices();
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++ )
{
pdi = Pa_GetDeviceInfo( i );
printf("---------------------------------------------- #%d", i );
if( i == Pa_GetDefaultInputDeviceID() ) printf(" DefaultInput");
if( i == Pa_GetDefaultOutputDeviceID() ) printf(" DefaultOutput");
printf("\nName = %s\n", pdi->name );
printf("Max Inputs = %d", pdi->maxInputChannels );
printf(", Max Outputs = %d\n", pdi->maxOutputChannels );
if( pdi->numSampleRates == -1 )
{
printf("Sample Rate Range = %f to %f\n", pdi->sampleRates[0], pdi->sampleRates[1] );
}
else
{
printf("Sample Rates =");
for( j=0; j<pdi->numSampleRates; j++ )
{
printf(" %8.2f,", pdi->sampleRates[j] );
}
printf("\n");
}
printf("Native Sample Formats = ");
if( pdi->nativeSampleFormats & paInt8 ) printf("paInt8, ");
if( pdi->nativeSampleFormats & paUInt8 ) printf("paUInt8, ");
if( pdi->nativeSampleFormats & paInt16 ) printf("paInt16, ");
if( pdi->nativeSampleFormats & paInt32 ) printf("paInt32, ");
if( pdi->nativeSampleFormats & paFloat32 ) printf("paFloat32, ");
if( pdi->nativeSampleFormats & paInt24 ) printf("paInt24, ");
if( pdi->nativeSampleFormats & paPackedInt24 ) printf("paPackedInt24, ");
printf("\n");
}
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;
}