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/*
** Copyright (C) 2002-2014 Erik de Castro Lopo <erikd@mega-nerd.com>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "sfconfig.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sndfile.h>
#include "utils.h"
#define BUFFER_SIZE (10000)
#ifndef M_PI
#define M_PI 3.14159265358979323846264338
#endif
static void dwvw_test (const char *filename, int format, int bit_width) ;
int
main (void)
{
dwvw_test ("dwvw12.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_12, 12) ;
dwvw_test ("dwvw16.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_16, 16) ;
dwvw_test ("dwvw24.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_24, 24) ;
return 0 ;
} /* main */
static void
dwvw_test (const char *filename, int format, int bit_width)
{ static int write_buf [BUFFER_SIZE] ;
static int read_buf [BUFFER_SIZE] ;
SNDFILE *file ;
SF_INFO sfinfo ;
double value ;
int k, bit_mask ;
srand (123456) ;
/* Only want to grab the top bit_width bits. */
bit_mask = arith_shift_left (-1, 32 - bit_width) ;
print_test_name ("dwvw_test", filename) ;
sf_info_setup (&sfinfo, format, 44100, 1) ;
file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
/* Generate random.frames. */
for (k = 0 ; k < BUFFER_SIZE / 2 ; k++)
{ value = 0x7FFFFFFF * sin (123.0 / sfinfo.samplerate * 2 * k * M_PI) ;
write_buf [k] = bit_mask & lrint (value) ;
} ;
for ( ; k < BUFFER_SIZE ; k++)
write_buf [k] = bit_mask & (arith_shift_left (rand (), 11) ^ (rand () >> 11)) ;
sf_write_int (file, write_buf, BUFFER_SIZE) ;
sf_close (file) ;
file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
if ((k = sf_read_int (file, read_buf, BUFFER_SIZE)) != BUFFER_SIZE)
{ printf ("Error (line %d) : Only read %d/%d.frames.\n", __LINE__, k, BUFFER_SIZE) ;
exit (1) ;
}
for (k = 0 ; k < BUFFER_SIZE ; k++)
{ if (read_buf [k] != write_buf [k])
{ printf ("Error (line %d) : %d != %d at position %d/%d\n", __LINE__,
write_buf [k] >> (32 - bit_width), read_buf [k] >> (32 - bit_width),
k, BUFFER_SIZE) ;
oct_save_int (write_buf, read_buf, BUFFER_SIZE) ;
exit (1) ;
} ;
} ;
sf_close (file) ;
unlink (filename) ;
printf ("ok\n") ;
return ;
} /* dwvw_test */
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