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/*
* SpanDSP - a series of DSP components for telephony
*
* r2_mf_tx_tests.c - Test the Bell MF generator.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2003 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: r2_mf_tx_tests.c,v 1.11 2008/05/13 13:17:26 steveu Exp $
*/
/*! \file */
/*! \page r2_mf_tx_tests_page R2 MF generation tests
\section r2_mf_tx_tests_page_sec_1 What does it do?
???.
\section r2_mf_tx_tests_page_sec_2 How does it work?
???.
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <audiofile.h>
#include "spandsp.h"
#define OUTPUT_FILE_NAME "r2_mf.wav"
int main(int argc, char *argv[])
{
r2_mf_tx_state_t gen;
int16_t amp[1000];
int len;
AFfilehandle outhandle;
AFfilesetup filesetup;
int outframes;
int digit;
const char *digits = "0123456789BCDEF";
filesetup = afNewFileSetup();
if (filesetup == AF_NULL_FILESETUP)
{
fprintf(stderr, " Failed to create file setup\n");
exit(2);
}
afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
afInitRate(filesetup, AF_DEFAULT_TRACK, 8000.0);
//afInitCompression(filesetup, AF_DEFAULT_TRACK, AF_COMPRESSION_G711_ALAW);
afInitFileFormat(filesetup, AF_FILE_WAVE);
afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
outhandle = afOpenFile(OUTPUT_FILE_NAME, "w", filesetup);
if (outhandle == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot open wave file '%s'\n", OUTPUT_FILE_NAME);
exit(2);
}
r2_mf_tx_init(&gen, FALSE);
for (digit = 0; digits[digit]; digit++)
{
r2_mf_tx_put(&gen, digits[digit]);
len = r2_mf_tx(&gen, amp, 1000);
printf("Generated %d samples of %c\n", len, digits[digit]);
if (len > 0)
{
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
len);
}
r2_mf_tx_put(&gen, 0);
len = r2_mf_tx(&gen, amp, 1000);
printf("Generated %d samples\n", len);
if (len > 0)
{
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
len);
}
}
r2_mf_tx_init(&gen, TRUE);
for (digit = 0; digits[digit]; digit++)
{
r2_mf_tx_put(&gen, digits[digit]);
len = r2_mf_tx(&gen, amp, 1000);
printf("Generated %d samples of %c\n", len, digits[digit]);
if (len > 0)
{
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
len);
}
r2_mf_tx_put(&gen, 0);
len = r2_mf_tx(&gen, amp, 1000);
printf("Generated %d samples\n", len);
if (len > 0)
{
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
len);
}
}
if (afCloseFile(outhandle) != 0)
{
fprintf(stderr, " Cannot close wave file '%s'\n", OUTPUT_FILE_NAME);
exit (2);
}
afFreeFileSetup(filesetup);
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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