Mercurial > hg > audiostuff
diff spandsp-0.0.3/spandsp-0.0.3/tests/r2_mf_tx_tests.c @ 5:f762bf195c4b
import spandsp-0.0.3
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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date | Fri, 25 Jun 2010 16:00:21 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/spandsp-0.0.3/spandsp-0.0.3/tests/r2_mf_tx_tests.c Fri Jun 25 16:00:21 2010 +0200 @@ -0,0 +1,149 @@ +/* + * 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 1.4 2006/11/19 14:07:27 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? +???. +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdlib.h> +#include <inttypes.h> +#include <string.h> +#include <stdio.h> +#if defined(HAVE_TGMATH_H) +#include <tgmath.h> +#endif +#if defined(HAVE_MATH_H) +#include <math.h> +#endif +#include <time.h> +#include <fcntl.h> +#include <audiofile.h> +#include <tiffio.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 fwd; + 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); + fwd = FALSE; + for (digit = 0; digits[digit]; digit++) + { + len = r2_mf_tx(&gen, amp, 1000, fwd, digits[digit]); + printf("Generated %d samples of %c\n", len, digits[digit]); + if (len > 0) + { + outframes = afWriteFrames(outhandle, + AF_DEFAULT_TRACK, + amp, + len); + } + len = r2_mf_tx(&gen, amp, 1000, fwd, 0); + printf("Generated %d samples\n", len); + if (len > 0) + { + outframes = afWriteFrames(outhandle, + AF_DEFAULT_TRACK, + amp, + len); + } + } + + fwd = TRUE; + for (digit = 0; digits[digit]; digit++) + { + len = r2_mf_tx(&gen, amp, 1000, fwd, digits[digit]); + printf("Generated %d samples of %c\n", len, digits[digit]); + if (len > 0) + { + outframes = afWriteFrames(outhandle, + AF_DEFAULT_TRACK, + amp, + len); + } + len = r2_mf_tx(&gen, amp, 1000, fwd, 0); + 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 ------------------------------------------------------------*/