SV platform dependency builds

/** @file patest1.c

        @ingroup test_src

        @brief Ring modulate the audio input with a sine wave for 20 seconds.

        @author Ross Bencina <rossb@audiomulch.com>

*/

/*

 * $Id$

 *

 * 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"

#ifndef M_PI

#define M_PI (3.14159265)

#endif

#define SAMPLE_RATE (44100)

typedef struct

{

    float sine[100];

    int phase;

    int sampsToGo;

}

patest1data;

static int patest1Callback( const void *inputBuffer, void *outputBuffer,

                            unsigned long framesPerBuffer,

                            const PaStreamCallbackTimeInfo* timeInfo,

                            PaStreamCallbackFlags statusFlags,

                            void *userData )

{

    patest1data *data = (patest1data*)userData;

    float *in = (float*)inputBuffer;

    float *out = (float*)outputBuffer;

    int framesToCalc = framesPerBuffer;

    unsigned long i = 0;

    int finished;

    if( data->sampsToGo < framesPerBuffer )

    {

        framesToCalc = data->sampsToGo;

        finished = paComplete;

    }

    else

    {

        finished = paContinue;

    }

    for( ; i<framesToCalc; i++ )

    {

        *out++ = *in++ * data->sine[data->phase];  /* left */

        *out++ = *in++ * data->sine[data->phase++];  /* right */

        if( data->phase >= 100 )

            data->phase = 0;

    }

    data->sampsToGo -= framesToCalc;

    /* zero remainder of final buffer if not already done */

    for( ; i<framesPerBuffer; i++ )

    {

        *out++ = 0; /* left */

        *out++ = 0; /* right */

    }

    return finished;

}

int main(int argc, char* argv[]);

int main(int argc, char* argv[])

{

    PaStream                *stream;

    PaError                 err;

    patest1data             data;

    int                     i;

    PaStreamParameters      inputParameters, outputParameters;

    const PaHostErrorInfo*  herr;

    printf("patest1.c\n"); fflush(stdout);

    printf("Ring modulate input for 20 seconds.\n"); fflush(stdout);

    /* initialise sinusoidal wavetable */

    for( i=0; i<100; i++ )

        data.sine[i] = sin( ((double)i/100.) * M_PI * 2. );

    data.phase = 0;

    data.sampsToGo = SAMPLE_RATE * 20;        /* 20 seconds. */

    /* initialise portaudio subsytem */

    err = Pa_Initialize();

    inputParameters.device = Pa_GetDefaultInputDevice();    /* default input device */

    if (inputParameters.device == paNoDevice) {

      fprintf(stderr,"Error: No input default device.\n");

      goto done;

    }

    inputParameters.channelCount = 2;                       /* stereo input */

    inputParameters.sampleFormat = paFloat32;               /* 32 bit floating point input */

    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;

    inputParameters.hostApiSpecificStreamInfo = NULL;

    outputParameters.device = Pa_GetDefaultOutputDevice();  /* default output device */

    if (outputParameters.device == paNoDevice) {

      fprintf(stderr,"Error: No default output device.\n");

      goto done;

    }

    outputParameters.channelCount = 2;                      /* stereo output */

    outputParameters.sampleFormat = paFloat32;              /* 32 bit floating point output */

    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;

    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream(

                        &stream,

                        &inputParameters,

                        &outputParameters,

                        (double)SAMPLE_RATE, /* Samplerate in Hertz. */

                        512,                 /* Small buffers */

                        paClipOff,           /* We won't output out of range samples so don't bother clipping them. */

                        patest1Callback,

                        &data );

    if( err != paNoError ) goto done;

    err = Pa_StartStream( stream );

    if( err != paNoError ) goto done;

    printf( "Press any key to end.\n" ); fflush(stdout);

    getc( stdin ); /* wait for input before exiting */

    err = Pa_AbortStream( stream );

    if( err != paNoError ) goto done;

    printf( "Waiting for stream to complete...\n" );

    /* sleep until playback has finished */

    while( ( err = Pa_IsStreamActive( stream ) ) == 1 ) Pa_Sleep(1000);

    if( err < 0 ) goto done;

    err = Pa_CloseStream( stream );

    if( err != paNoError ) goto done;

done:

    Pa_Terminate();

    if( err != paNoError )

    {

        fprintf( stderr, "An error occured while using portaudio\n" );

        if( err == paUnanticipatedHostError )

        {

            fprintf( stderr, " unanticipated host error.\n");

            herr = Pa_GetLastHostErrorInfo();

            if (herr)

            {

                fprintf( stderr, " Error number: %ld\n", herr->errorCode );

                if (herr->errorText)

                    fprintf( stderr, " Error text: %s\n", herr->errorText );

            }

            else

                fprintf( stderr, " Pa_GetLastHostErrorInfo() failed!\n" );

        }

        else

        {

            fprintf( stderr, " Error number: %d\n", err );

            fprintf( stderr, " Error text: %s\n", Pa_GetErrorText( err ) );

        }

        err = 1;          /* Always return 0 or 1, but no other return codes. */

    }

    printf( "bye\n" );

    return err;

}