SV platform dependency builds

/** @file paex_record.c

        @ingroup examples_src

        @brief Record input into an array; Save array to a file; Playback recorded data.

        @author Phil Burk  http://www.softsynth.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 <stdlib.h>

#include "portaudio.h"

/* #define SAMPLE_RATE  (17932) // Test failure to open with this value. */

#define SAMPLE_RATE  (44100)

#define FRAMES_PER_BUFFER (512)

#define NUM_SECONDS     (5)

#define NUM_CHANNELS    (2)

/* #define DITHER_FLAG     (paDitherOff) */

#define DITHER_FLAG     (0) /**/

/** Set to 1 if you want to capture the recording to a file. */

#define WRITE_TO_FILE   (0)

/* Select sample format. */

#if 1

#define PA_SAMPLE_TYPE  paFloat32

typedef float SAMPLE;

#define SAMPLE_SILENCE  (0.0f)

#define PRINTF_S_FORMAT "%.8f"

#elif 1

#define PA_SAMPLE_TYPE  paInt16

typedef short SAMPLE;

#define SAMPLE_SILENCE  (0)

#define PRINTF_S_FORMAT "%d"

#elif 0

#define PA_SAMPLE_TYPE  paInt8

typedef char SAMPLE;

#define SAMPLE_SILENCE  (0)

#define PRINTF_S_FORMAT "%d"

#else

#define PA_SAMPLE_TYPE  paUInt8

typedef unsigned char SAMPLE;

#define SAMPLE_SILENCE  (128)

#define PRINTF_S_FORMAT "%d"

#endif

typedef struct

{

    int          frameIndex;  /* Index into sample array. */

    int          maxFrameIndex;

    SAMPLE      *recordedSamples;

}

paTestData;

/* This routine will be called by the PortAudio engine when audio is needed.

** It may be called at interrupt level on some machines so don't do anything

** that could mess up the system like calling malloc() or free().

*/

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

                           unsigned long framesPerBuffer,

                           const PaStreamCallbackTimeInfo* timeInfo,

                           PaStreamCallbackFlags statusFlags,

                           void *userData )

{

    paTestData *data = (paTestData*)userData;

    const SAMPLE *rptr = (const SAMPLE*)inputBuffer;

    SAMPLE *wptr = &data->recordedSamples[data->frameIndex * NUM_CHANNELS];

    long framesToCalc;

    long i;

    int finished;

    unsigned long framesLeft = data->maxFrameIndex - data->frameIndex;

    (void) outputBuffer; /* Prevent unused variable warnings. */

    (void) timeInfo;

    (void) statusFlags;

    (void) userData;

    if( framesLeft < framesPerBuffer )

    {

        framesToCalc = framesLeft;

        finished = paComplete;

    }

    else

    {

        framesToCalc = framesPerBuffer;

        finished = paContinue;

    }

    if( inputBuffer == NULL )

    {

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

        {

            *wptr++ = SAMPLE_SILENCE;  /* left */

            if( NUM_CHANNELS == 2 ) *wptr++ = SAMPLE_SILENCE;  /* right */

        }

    }

    else

    {

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

        {

            *wptr++ = *rptr++;  /* left */

            if( NUM_CHANNELS == 2 ) *wptr++ = *rptr++;  /* right */

        }

    }

    data->frameIndex += framesToCalc;

    return finished;

}

/* This routine will be called by the PortAudio engine when audio is needed.

** It may be called at interrupt level on some machines so don't do anything

** that could mess up the system like calling malloc() or free().

*/

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

                         unsigned long framesPerBuffer,

                         const PaStreamCallbackTimeInfo* timeInfo,

                         PaStreamCallbackFlags statusFlags,

                         void *userData )

{

    paTestData *data = (paTestData*)userData;

    SAMPLE *rptr = &data->recordedSamples[data->frameIndex * NUM_CHANNELS];

    SAMPLE *wptr = (SAMPLE*)outputBuffer;

    unsigned int i;

    int finished;

    unsigned int framesLeft = data->maxFrameIndex - data->frameIndex;

    (void) inputBuffer; /* Prevent unused variable warnings. */

    (void) timeInfo;

    (void) statusFlags;

    (void) userData;

    if( framesLeft < framesPerBuffer )

    {

        /* final buffer... */

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

        {

            *wptr++ = *rptr++;  /* left */

            if( NUM_CHANNELS == 2 ) *wptr++ = *rptr++;  /* right */

        }

        for( ; i<framesPerBuffer; i++ )

        {

            *wptr++ = 0;  /* left */

            if( NUM_CHANNELS == 2 ) *wptr++ = 0;  /* right */

        }

        data->frameIndex += framesLeft;

        finished = paComplete;

    }

    else

    {

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

        {

            *wptr++ = *rptr++;  /* left */

            if( NUM_CHANNELS == 2 ) *wptr++ = *rptr++;  /* right */

        }

        data->frameIndex += framesPerBuffer;

        finished = paContinue;

    }

    return finished;

}

/*******************************************************************/

int main(void);

int main(void)

{

    PaStreamParameters  inputParameters,

                        outputParameters;

    PaStream*           stream;

    PaError             err = paNoError;

    paTestData          data;

    int                 i;

    int                 totalFrames;

    int                 numSamples;

    int                 numBytes;

    SAMPLE              max, val;

    double              average;

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

    data.maxFrameIndex = totalFrames = NUM_SECONDS * SAMPLE_RATE; /* Record for a few seconds. */

    data.frameIndex = 0;

    numSamples = totalFrames * NUM_CHANNELS;

    numBytes = numSamples * sizeof(SAMPLE);

    data.recordedSamples = (SAMPLE *) malloc( numBytes ); /* From now on, recordedSamples is initialised. */

    if( data.recordedSamples == NULL )

    {

        printf("Could not allocate record array.\n");

        goto done;

    }

    for( i=0; i<numSamples; i++ ) data.recordedSamples[i] = 0;

    err = Pa_Initialize();

    if( err != paNoError ) goto done;

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

    if (inputParameters.device == paNoDevice) {

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

        goto done;

    }

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

    inputParameters.sampleFormat = PA_SAMPLE_TYPE;

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

    inputParameters.hostApiSpecificStreamInfo = NULL;

    /* Record some audio. -------------------------------------------- */

    err = Pa_OpenStream(

              &stream,

              &inputParameters,

              NULL,                  /* &outputParameters, */

              SAMPLE_RATE,

              FRAMES_PER_BUFFER,

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

              recordCallback,

              &data );

    if( err != paNoError ) goto done;

    err = Pa_StartStream( stream );

    if( err != paNoError ) goto done;

    printf("\n=== Now recording!! Please speak into the microphone. ===\n"); fflush(stdout);

    while( ( err = Pa_IsStreamActive( stream ) ) == 1 )

    {

        Pa_Sleep(1000);

        printf("index = %d\n", data.frameIndex ); fflush(stdout);

    }

    if( err < 0 ) goto done;

    err = Pa_CloseStream( stream );

    if( err != paNoError ) goto done;

    /* Measure maximum peak amplitude. */

    max = 0;

    average = 0.0;

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

    {

        val = data.recordedSamples[i];

        if( val < 0 ) val = -val; /* ABS */

        if( val > max )

        {

            max = val;

        }

        average += val;

    }

    average = average / (double)numSamples;

    printf("sample max amplitude = "PRINTF_S_FORMAT"\n", max );

    printf("sample average = %lf\n", average );

    /* Write recorded data to a file. */

#if WRITE_TO_FILE

    {

        FILE  *fid;

        fid = fopen("recorded.raw", "wb");

        if( fid == NULL )

        {

            printf("Could not open file.");

        }

        else

        {

            fwrite( data.recordedSamples, NUM_CHANNELS * sizeof(SAMPLE), totalFrames, fid );

            fclose( fid );

            printf("Wrote data to 'recorded.raw'\n");

        }

    }

#endif

    /* Playback recorded data.  -------------------------------------------- */

    data.frameIndex = 0;

    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 =  PA_SAMPLE_TYPE;

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

    outputParameters.hostApiSpecificStreamInfo = NULL;

    printf("\n=== Now playing back. ===\n"); fflush(stdout);

    err = Pa_OpenStream(

              &stream,

              NULL, /* no input */

              &outputParameters,

              SAMPLE_RATE,

              FRAMES_PER_BUFFER,

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

              playCallback,

              &data );

    if( err != paNoError ) goto done;

    if( stream )

    {

        err = Pa_StartStream( stream );

        if( err != paNoError ) goto done;

        printf("Waiting for playback to finish.\n"); fflush(stdout);

        while( ( err = Pa_IsStreamActive( stream ) ) == 1 ) Pa_Sleep(100);

        if( err < 0 ) goto done;

        err = Pa_CloseStream( stream );

        if( err != paNoError ) goto done;

        printf("Done.\n"); fflush(stdout);

    }

done:

    Pa_Terminate();

    if( data.recordedSamples )       /* Sure it is NULL or valid. */

        free( data.recordedSamples );

    if( err != paNoError )

    {

        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 ) );

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

    }

    return err;

}