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freeswitch/libs/spandsp/tests/line_model_tests.c
Michael Jerris 314ae8b6f3 update to snapshot spandsp-20090128 
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11535 d0543943-73ff-0310-b7d9-9358b9ac24b2
2009-01-28 04:48:03 +00:00

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/*
* SpanDSP - a series of DSP components for telephony
*
* line_model_tests.c - Tests for the telephone line model.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2004 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: line_model_tests.c,v 1.26 2009/01/12 17:20:59 steveu Exp $
*/
/*! \page line_model_tests_page Telephony line model tests
\section line_model_tests_page_sec_1 What does it do?
???.
\section line_model_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 <unistd.h>
#include <string.h>
#include <time.h>
#include <audiofile.h>
//#if defined(WITH_SPANDSP_INTERNALS)
#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
//#endif
#include "spandsp.h"
#include "spandsp-sim.h"
#if !defined(NULL)
#define NULL (void *) 0
#endif
#define BLOCK_LEN 160
#define OUT_FILE_COMPLEXIFY "complexify.wav"
#define IN_FILE_NAME1 "line_model_test_in1.wav"
#define IN_FILE_NAME2 "line_model_test_in2.wav"
#define OUT_FILE_NAME1 "line_model_one_way_test_out.wav"
#define OUT_FILE_NAME "line_model_test_out.wav"
int channel_codec;
int rbs_pattern;
static void complexify_tests(void)
{
complexify_state_t *s;
complexf_t cc;
int16_t amp;
int i;
AFfilehandle outhandle;
AFfilesetup filesetup;
int outframes;
int16_t out[40000];
awgn_state_t noise1;
if ((filesetup = afNewFileSetup()) == 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, (float) SAMPLE_RATE);
afInitFileFormat(filesetup, AF_FILE_WAVE);
afInitChannels(filesetup, AF_DEFAULT_TRACK, 2);
if ((outhandle = afOpenFile(OUT_FILE_COMPLEXIFY, "w", filesetup)) == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot create wave file '%s'\n", OUT_FILE_COMPLEXIFY);
exit(2);
}
awgn_init_dbm0(&noise1, 1234567, -10.0f);
s = complexify_init();
for (i = 0; i < 20000; i++)
{
amp = awgn(&noise1);
cc = complexify(s, amp);
out[2*i] = cc.re;
out[2*i + 1] = cc.im;
}
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
out,
20000);
if (outframes != 20000)
{
fprintf(stderr, " Error writing wave file\n");
exit(2);
}
if (afCloseFile(outhandle))
{
fprintf(stderr, " Cannot close wave file '%s'\n", OUT_FILE_COMPLEXIFY);
exit(2);
}
afFreeFileSetup(filesetup);
}
/*- End of function --------------------------------------------------------*/
static void test_one_way_model(int line_model_no, int speech_test)
{
one_way_line_model_state_t *model;
int16_t input1[BLOCK_LEN];
int16_t output1[BLOCK_LEN];
int16_t amp[2*BLOCK_LEN];
AFfilehandle inhandle1;
AFfilehandle outhandle;
AFfilesetup filesetup;
int outframes;
int samples;
int i;
int j;
awgn_state_t noise1;
if ((model = one_way_line_model_init(line_model_no, -50, channel_codec, rbs_pattern)) == NULL)
{
fprintf(stderr, " Failed to create line model\n");
exit(2);
}
awgn_init_dbm0(&noise1, 1234567, -10.0f);
if ((filesetup = afNewFileSetup()) == 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, (float) SAMPLE_RATE);
afInitFileFormat(filesetup, AF_FILE_WAVE);
afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
if ((inhandle1 = afOpenFile(IN_FILE_NAME1, "r", NULL)) == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot open wave file '%s'\n", IN_FILE_NAME1);
exit(2);
}
if ((outhandle = afOpenFile(OUT_FILE_NAME1, "w", filesetup)) == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot create wave file '%s'\n", OUT_FILE_NAME1);
exit(2);
}
for (i = 0; i < 10000; i++)
{
if (speech_test)
{
samples = afReadFrames(inhandle1,
AF_DEFAULT_TRACK,
input1,
BLOCK_LEN);
if (samples == 0)
break;
}
else
{
for (j = 0; j < BLOCK_LEN; j++)
input1[j] = awgn(&noise1);
samples = BLOCK_LEN;
}
for (j = 0; j < samples; j++)
{
one_way_line_model(model,
&output1[j],
&input1[j],
1);
amp[j] = output1[j];
}
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
samples);
if (outframes != samples)
{
fprintf(stderr, " Error writing wave file\n");
exit(2);
}
}
if (afCloseFile(inhandle1))
{
fprintf(stderr, " Cannot close wave file '%s'\n", IN_FILE_NAME1);
exit(2);
}
if (afCloseFile(outhandle))
{
fprintf(stderr, " Cannot close wave file '%s'\n", OUT_FILE_NAME1);
exit(2);
}
afFreeFileSetup(filesetup);
one_way_line_model_release(model);
}
/*- End of function --------------------------------------------------------*/
static void test_both_ways_model(int line_model_no, int speech_test)
{
both_ways_line_model_state_t *model;
int16_t input1[BLOCK_LEN];
int16_t input2[BLOCK_LEN];
int16_t output1[BLOCK_LEN];
int16_t output2[BLOCK_LEN];
int16_t amp[2*BLOCK_LEN];
AFfilehandle inhandle1;
AFfilehandle inhandle2;
AFfilehandle outhandle;
AFfilesetup filesetup;
int outframes;
int samples;
int i;
int j;
awgn_state_t noise1;
awgn_state_t noise2;
if ((model = both_ways_line_model_init(line_model_no, -50, line_model_no + 1, -35, channel_codec, rbs_pattern)) == NULL)
{
fprintf(stderr, " Failed to create line model\n");
exit(2);
}
awgn_init_dbm0(&noise1, 1234567, -10.0f);
awgn_init_dbm0(&noise2, 1234567, -10.0f);
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, (float) SAMPLE_RATE);
afInitFileFormat(filesetup, AF_FILE_WAVE);
afInitChannels(filesetup, AF_DEFAULT_TRACK, 2);
inhandle1 = afOpenFile(IN_FILE_NAME1, "r", NULL);
if (inhandle1 == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot open wave file '%s'\n", IN_FILE_NAME1);
exit(2);
}
inhandle2 = afOpenFile(IN_FILE_NAME2, "r", NULL);
if (inhandle2 == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot open wave file '%s'\n", IN_FILE_NAME2);
exit(2);
}
outhandle = afOpenFile(OUT_FILE_NAME, "w", filesetup);
if (outhandle == AF_NULL_FILEHANDLE)
{
fprintf(stderr, " Cannot create wave file '%s'\n", OUT_FILE_NAME);
exit(2);
}
for (i = 0; i < 10000; i++)
{
if (speech_test)
{
samples = afReadFrames(inhandle1,
AF_DEFAULT_TRACK,
input1,
BLOCK_LEN);
if (samples == 0)
break;
samples = afReadFrames(inhandle2,
AF_DEFAULT_TRACK,
input2,
samples);
if (samples == 0)
break;
}
else
{
for (j = 0; j < BLOCK_LEN; j++)
{
input1[j] = awgn(&noise1);
input2[j] = awgn(&noise2);
}
samples = BLOCK_LEN;
}
for (j = 0; j < samples; j++)
{
both_ways_line_model(model,
&output1[j],
&input1[j],
&output2[j],
&input2[j],
1);
amp[2*j] = output1[j];
amp[2*j + 1] = output2[j];
}
outframes = afWriteFrames(outhandle,
AF_DEFAULT_TRACK,
amp,
samples);
if (outframes != samples)
{
fprintf(stderr, " Error writing wave file\n");
exit(2);
}
}
if (afCloseFile(inhandle1))
{
fprintf(stderr, " Cannot close wave file '%s'\n", IN_FILE_NAME1);
exit(2);
}
if (afCloseFile(inhandle2))
{
fprintf(stderr, " Cannot close wave file '%s'\n", IN_FILE_NAME2);
exit(2);
}
if (afCloseFile(outhandle))
{
fprintf(stderr, " Cannot close wave file '%s'\n", OUT_FILE_NAME);
exit(2);
}
afFreeFileSetup(filesetup);
both_ways_line_model_release(model);
}
/*- End of function --------------------------------------------------------*/
int main(int argc, char *argv[])
{
int line_model_no;
int speech_test;
int log_audio;
int opt;
channel_codec = MUNGE_CODEC_NONE;
log_audio = FALSE;
line_model_no = 0;
rbs_pattern = 0;
speech_test = FALSE;
while ((opt = getopt(argc, argv, "c:lm:r:s:")) != -1)
{
switch (opt)
{
case 'c':
channel_codec = atoi(optarg);
break;
case 'l':
log_audio = TRUE;
break;
case 'm':
line_model_no = atoi(optarg);
break;
case 'r':
rbs_pattern = atoi(optarg);
break;
case 's':
speech_test = atoi(optarg);
break;
default:
//usage();
exit(2);
}
}
complexify_tests();
test_one_way_model(line_model_no, speech_test);
test_both_ways_model(line_model_no, speech_test);
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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