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|
[+ AutoGen5 template c +]
/*
** Copyright (C) 1999-2004 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>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <math.h>
#include <sndfile.h>
#include "utils.h"
#ifndef M_PI
#define M_PI 3.14159265358979323846264338
#endif
#define HALF_BUFFER_SIZE (1 << 12)
#define BUFFER_SIZE (2 * HALF_BUFFER_SIZE)
#define SINE_AMP 1.1
#define MAX_ERROR 0.0202
[+ FOR float_type +]
[+ FOR data_type
+]static void [+ (get "short_name") +]_scale_clip_test_[+ (get "name") +] (const char *filename, int filetype, float maxval) ;
[+ ENDFOR data_type
+][+ ENDFOR float_type +]
/* Data buffer. */
static double buffer_out [BUFFER_SIZE] ;
static double buffer_in [BUFFER_SIZE] ;
int
main (void)
{
flt_scale_clip_test_08 ("scale_clip_s8.au", SF_FORMAT_AU | SF_FORMAT_PCM_S8, 1.0 * 0x80) ;
flt_scale_clip_test_08 ("scale_clip_u8.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_U8, 1.0 * 0x80) ;
dbl_scale_clip_test_08 ("scale_clip_s8.au", SF_FORMAT_AU | SF_FORMAT_PCM_S8, 1.0 * 0x80) ;
dbl_scale_clip_test_08 ("scale_clip_u8.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_U8, 1.0 * 0x80) ;
/*
** Now use SF_FORMAT_AU where possible because it allows both
** big and little endian files.
*/
flt_scale_clip_test_16 ("scale_clip_be16.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_16, 1.0 * 0x8000) ;
flt_scale_clip_test_16 ("scale_clip_le16.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_16, 1.0 * 0x8000) ;
flt_scale_clip_test_24 ("scale_clip_be24.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_24, 1.0 * 0x800000) ;
flt_scale_clip_test_24 ("scale_clip_le24.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_24, 1.0 * 0x800000) ;
flt_scale_clip_test_32 ("scale_clip_be32.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_32, 1.0 * 0x80000000) ;
flt_scale_clip_test_32 ("scale_clip_le32.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_32, 1.0 * 0x80000000) ;
dbl_scale_clip_test_16 ("scale_clip_be16.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_16, 1.0 * 0x8000) ;
dbl_scale_clip_test_16 ("scale_clip_le16.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_16, 1.0 * 0x8000) ;
dbl_scale_clip_test_24 ("scale_clip_be24.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_24, 1.0 * 0x800000) ;
dbl_scale_clip_test_24 ("scale_clip_le24.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_24, 1.0 * 0x800000) ;
dbl_scale_clip_test_32 ("scale_clip_be32.au", SF_ENDIAN_BIG | SF_FORMAT_AU | SF_FORMAT_PCM_32, 1.0 * 0x80000000) ;
dbl_scale_clip_test_32 ("scale_clip_le32.au", SF_ENDIAN_LITTLE | SF_FORMAT_AU | SF_FORMAT_PCM_32, 1.0 * 0x80000000) ;
return 0 ;
} /* main */
/*============================================================================================
** Here are the test functions.
*/
[+ FOR float_type +]
[+ FOR data_type
+]static void
[+ (get "short_name") +]_scale_clip_test_[+ (get "name") +] (const char *filename, int filetype, float maxval)
{ SNDFILE *file ;
SF_INFO sfinfo ;
int k ;
[+ (get "type_name") +] *data_out, *data_in ;
double diff, clip_max_diff ;
print_test_name ("[+ (get "short_name") +]_scale_clip_test_[+ (get "name") +]", filename) ;
data_out = ([+ (get "type_name") +]*) buffer_out ;
data_in = ([+ (get "type_name") +]*) buffer_in ;
for (k = 0 ; k < HALF_BUFFER_SIZE ; k++)
{ data_out [k] = SINE_AMP * sin (2 * M_PI * k / HALF_BUFFER_SIZE) ;
data_out [k + HALF_BUFFER_SIZE] = data_out [k] * maxval ;
} ;
sfinfo.samplerate = 44100 ;
sfinfo.frames = 123456789 ; /* Wrong length. Library should correct this on sf_close. */
sfinfo.channels = 1 ;
sfinfo.format = filetype ;
/*
** Write two versions of the data:
** normalized and clipped
** un-normalized and clipped.
*/
file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
sf_command (file, SFC_SET_CLIPPING, NULL, SF_TRUE) ;
test_write_[+ (get "type_name") +]_or_die (file, 0, data_out, HALF_BUFFER_SIZE, __LINE__) ;
sf_command (file, SFC_SET_NORM_[+ (get "upper_name") +], NULL, SF_FALSE) ;
test_write_[+ (get "type_name") +]_or_die (file, 0, data_out + HALF_BUFFER_SIZE, HALF_BUFFER_SIZE, __LINE__) ;
sf_close (file) ;
memset (buffer_in, 0, sizeof (buffer_in)) ;
file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
sfinfo.format &= (SF_FORMAT_TYPEMASK | SF_FORMAT_SUBMASK) ;
if (sfinfo.format != (filetype & (SF_FORMAT_TYPEMASK | SF_FORMAT_SUBMASK)))
{ printf ("\n\nLine %d: Returned format incorrect (0x%08X => 0x%08X).\n\n", __LINE__, filetype, sfinfo.format) ;
exit (1) ;
} ;
if (sfinfo.frames != BUFFER_SIZE)
{ printf ("\n\nLine %d: Incorrect number of frames in file (%d => %ld).\n\n", __LINE__, BUFFER_SIZE, SF_COUNT_TO_LONG (sfinfo.frames)) ;
exit (1) ;
} ;
if (sfinfo.channels != 1)
{ printf ("\n\nLine %d: Incorrect number of channels in file.\n\n", __LINE__) ;
exit (1) ;
} ;
check_log_buffer_or_die (file, __LINE__) ;
test_read_[+ (get "type_name") +]_or_die (file, 0, data_in, HALF_BUFFER_SIZE, __LINE__) ;
sf_command (file, SFC_SET_NORM_[+ (get "upper_name") +], NULL, SF_FALSE) ;
test_read_[+ (get "type_name") +]_or_die (file, 0, data_in + HALF_BUFFER_SIZE, HALF_BUFFER_SIZE, __LINE__) ;
sf_close (file) ;
/* Check normalized version. */
clip_max_diff = 0.0 ;
for (k = 0 ; k < HALF_BUFFER_SIZE ; k++)
{ if (fabs (data_in [k]) > 1.0)
{ printf ("\n\nLine %d: Input sample %d/%d (%f) has not been clipped.\n\n", __LINE__, k, BUFFER_SIZE, data_in [k]) ;
exit (1) ;
} ;
if (data_out [k] * data_in [k] < 0.0)
{ printf ("\n\nLine %d: Data wrap around at index %d/%d.\n\n", __LINE__, k, BUFFER_SIZE) ;
exit (1) ;
} ;
if (fabs (data_out [k]) > 1.0)
continue ;
diff = fabs (data_out [k] - data_in [k]) ;
if (diff > clip_max_diff)
clip_max_diff = diff ;
} ;
if (clip_max_diff < 1e-20)
{ printf ("\n\nLine %d: Clipping difference (%e) too small (normalized).\n\n", __LINE__, clip_max_diff) ;
exit (1) ;
} ;
if (clip_max_diff > [+ (get "error_val") +])
{ printf ("\n\nLine %d: Clipping difference (%e) too large (normalized).\n\n", __LINE__, clip_max_diff) ;
exit (1) ;
} ;
/* Check the un-normalized data. */
clip_max_diff = 0.0 ;
for (k = HALF_BUFFER_SIZE ; k < BUFFER_SIZE ; k++)
{ if (fabs (data_in [k]) > maxval)
{ printf ("\n\nLine %d: Input sample %d/%d (%f) has not been clipped.\n\n", __LINE__, k, BUFFER_SIZE, data_in [k]) ;
exit (1) ;
} ;
if (data_out [k] * data_in [k] < 0.0)
{ printf ("\n\nLine %d: Data wrap around at index %d/%d.\n\n", __LINE__, k, BUFFER_SIZE) ;
exit (1) ;
} ;
if (fabs (data_out [k]) > maxval)
continue ;
diff = fabs (data_out [k] - data_in [k]) ;
if (diff > clip_max_diff)
clip_max_diff = diff ;
} ;
if (clip_max_diff < 1e-20)
{ printf ("\n\nLine %d: Clipping difference (%e) too small (un-normalized).\n\n", __LINE__, clip_max_diff) ;
exit (1) ;
} ;
if (clip_max_diff > 1.0)
{ printf ("\n\nLine %d: Clipping difference (%e) too large (un-normalised).\n\n", __LINE__, clip_max_diff) ;
exit (1) ;
} ;
printf ("ok\n") ;
unlink (filename) ;
} /* [+ (get "short_name") +]_scale_clip_test_[+ (get "name") +] */
[+ ENDFOR data_type
+]
[+ ENDFOR float_type +]
[+ COMMENT
Do not edit or modify anything in this comment block.
The following line is a file identity tag for the GNU Arch
revision control system.
arch-tag: dc1613fe-2985-462c-a0b4-62143a7570e8
+]
|
