mirror of
https://github.com/lwvmobile/dsd-fme.git
synced 2026-11-12 08:47:24 -05:00
105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
#include <stdio.h>
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#ifdef USE_PORTAUDIO
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#include <portaudio.h>
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#ifdef WIN32
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#include <windows.h>
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#endif
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void printPortAudioDevices()
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{
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int i, numDevices, defaultDisplayed;
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const PaDeviceInfo *deviceInfo;
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PaStreamParameters inputParameters, outputParameters;
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PaError err;
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Pa_Initialize();
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fprintf (stderr, "\nPortAudio version number = %d\nPortAudio version text = '%s'\n",
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Pa_GetVersion(), Pa_GetVersionText() );
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numDevices = Pa_GetDeviceCount();
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if( numDevices < 0 )
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{
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fprintf (stderr, "ERROR: Pa_GetDeviceCount returned 0x%x\n", numDevices );
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err = numDevices;
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goto error;
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}
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fprintf (stderr, "Number of devices = %d\n", numDevices );
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for( i=0; i<numDevices; i++ )
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{
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deviceInfo = Pa_GetDeviceInfo( i );
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fprintf (stderr, "--------------------------------------- device #%d\n", i );
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/* Mark global and API specific default devices */
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defaultDisplayed = 0;
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if( i == Pa_GetDefaultInputDevice() )
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{
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fprintf (stderr, "[ Default Input" );
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defaultDisplayed = 1;
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}
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else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultInputDevice )
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{
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const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi );
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fprintf (stderr, "[ Default %s Input", hostInfo->name );
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defaultDisplayed = 1;
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}
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if( i == Pa_GetDefaultOutputDevice() )
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{
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fprintf (stderr, (defaultDisplayed ? "," : "[") );
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fprintf (stderr, " Default Output" );
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defaultDisplayed = 1;
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}
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else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultOutputDevice )
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{
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const PaHostApiInfo *hostInfo = Pa_GetHostApiInfo( deviceInfo->hostApi );
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fprintf (stderr, (defaultDisplayed ? "," : "[") );
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fprintf (stderr, " Default %s Output", hostInfo->name );
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defaultDisplayed = 1;
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}
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if( defaultDisplayed )
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fprintf (stderr, " ]\n" );
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/* print device info fields */
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#ifdef WIN32
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{ /* Use wide char on windows, so we can show UTF-8 encoded device names */
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wchar_t wideName[MAX_PATH];
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MultiByteToWideChar(CP_UTF8, 0, deviceInfo->name, -1, wideName, MAX_PATH-1);
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wprintf( L"Name = %s\n", wideName );
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}
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#else
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fprintf (stderr, "Name = %s\n", deviceInfo->name );
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#endif
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fprintf (stderr, "Host API = %s\n", Pa_GetHostApiInfo( deviceInfo->hostApi )->name );
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fprintf (stderr, "Max inputs = %d", deviceInfo->maxInputChannels );
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fprintf (stderr, ", Max outputs = %d\n", deviceInfo->maxOutputChannels );
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fprintf (stderr, "Default sample rate = %8.2f\n", deviceInfo->defaultSampleRate );
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}
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Pa_Terminate();
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fprintf (stderr,"----------------------------------------------\n");
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return;
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error:
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Pa_Terminate();
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fprintf( stderr, "An error occured while using the portaudio stream\n" );
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fprintf( stderr, "Error number: %d\n", err );
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fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
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}
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#else
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void printPortAudioDevices()
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{
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fprintf (stderr,"PortAudio not supported in this build of dsd\n");
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}
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#endif
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