107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/*
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* SpanDSP - a series of DSP components for telephony
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*
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* r2_mf_tx_tests.c - Test the Bell MF generator.
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2003 Steve Underwood
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*! \file */
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/*! \page r2_mf_tx_tests_page R2 MF generation tests
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\section r2_mf_tx_tests_page_sec_1 What does it do?
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???.
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\section r2_mf_tx_tests_page_sec_2 How does it work?
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???.
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*/
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#if defined(HAVE_CONFIG_H)
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <time.h>
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#include <sndfile.h>
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#include "spandsp.h"
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#include "spandsp-sim.h"
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#define OUTPUT_FILE_NAME "r2_mf.wav"
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int main(int argc, char *argv[])
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{
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r2_mf_tx_state_t gen;
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int16_t amp[1000];
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int len;
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SNDFILE *outhandle;
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int digit;
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const char *digits = "0123456789BCDEF";
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if ((outhandle = sf_open_telephony_write(OUTPUT_FILE_NAME, 1)) == NULL)
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{
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fprintf(stderr, " Cannot open audio file '%s'\n", OUTPUT_FILE_NAME);
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exit(2);
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}
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r2_mf_tx_init(&gen, false);
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for (digit = 0; digits[digit]; digit++)
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{
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r2_mf_tx_put(&gen, digits[digit]);
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len = r2_mf_tx(&gen, amp, 1000);
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printf("Generated %d samples of %c\n", len, digits[digit]);
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if (len > 0)
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sf_writef_short(outhandle, amp, len);
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r2_mf_tx_put(&gen, 0);
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len = r2_mf_tx(&gen, amp, 1000);
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printf("Generated %d samples\n", len);
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if (len > 0)
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sf_writef_short(outhandle, amp, len);
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}
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r2_mf_tx_init(&gen, true);
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for (digit = 0; digits[digit]; digit++)
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{
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r2_mf_tx_put(&gen, digits[digit]);
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len = r2_mf_tx(&gen, amp, 1000);
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printf("Generated %d samples of %c\n", len, digits[digit]);
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if (len > 0)
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sf_writef_short(outhandle, amp, len);
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r2_mf_tx_put(&gen, 0);
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len = r2_mf_tx(&gen, amp, 1000);
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printf("Generated %d samples\n", len);
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if (len > 0)
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sf_writef_short(outhandle, amp, len);
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}
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if (sf_close_telephony(outhandle))
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{
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fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_FILE_NAME);
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exit (2);
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}
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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/*- End of file ------------------------------------------------------------*/
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