~noskcaj/ubuntu/saucy/sflphone/merge-1.2.3-2

/*

 * $Id: test_rw.c 1083 2006-08-23 07:30:49Z rossb $

 * test_rw.c

 * Read input from one stream and write it to another.

 *

 * Author: Phil Burk, http://www.softsynth.com/portaudio/

 *

 * This program uses PABLIO, the Portable Audio Blocking I/O Library.

 * PABLIO is built on top of PortAudio, the 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 "pablio.h"

/*

** Note that many of the older ISA sound cards on PCs do NOT support

** full duplex audio (simultaneous record and playback).

** And some only support full duplex at lower sample rates.

*/

#define SAMPLE_RATE          (44100)

#define NUM_SECONDS              (5)

#define SAMPLES_PER_FRAME        (2)

#define FRAMES_PER_BLOCK        (64)

/* Select whether we will use floats or shorts. */

#if 1

#define SAMPLE_TYPE  paFloat32

typedef float SAMPLE;

#else

#define SAMPLE_TYPE  paInt16

typedef short SAMPLE;

#endif

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

int main(void);

int main(void)

{

    int      i;

    SAMPLE   samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];

    PaError  err;

    PABLIO_Stream     *aStream;

    printf("Full duplex sound test using PortAudio and RingBuffers\n");

    fflush(stdout);

    /* Open simplified blocking I/O layer on top of PortAudio. */

    err = OpenAudioStream( &aStream, SAMPLE_RATE, SAMPLE_TYPE,

                           (PABLIO_READ_WRITE | PABLIO_STEREO) );

    if( err != paNoError ) goto error;

    /* Process samples in the foreground. */

    for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )

    {

        /* Read one block of data into sample array from audio input. */

        ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );

        /* Write that same block of data to output. */

        WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );

    }

    CloseAudioStream( aStream );

    printf("Full duplex sound test complete.\n" );

    fflush(stdout);

    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 -1;

}