Merge branch 'libsndfile'
[Faustine.git] / interpretor / lib / src / libsndfile-1.0.25 / tests / dwvw_test.c
1 /*
2 ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
3 **
4 ** This program is free software; you can redistribute it and/or modify
5 ** it under the terms of the GNU General Public License as published by
6 ** the Free Software Foundation; either version 2 of the License, or
7 ** (at your option) any later version.
8 **
9 ** This program is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ** GNU General Public License for more details.
13 **
14 ** You should have received a copy of the GNU General Public License
15 ** along with this program; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #include "sfconfig.h"
20
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <math.h>
25
26 #if HAVE_UNISTD_H
27 #include <unistd.h>
28 #endif
29
30 #include <sndfile.h>
31
32 #include "utils.h"
33
34 #define BUFFER_SIZE (10000)
35
36 #ifndef M_PI
37 #define M_PI 3.14159265358979323846264338
38 #endif
39
40 static void dwvw_test (const char *filename, int format, int bit_width) ;
41
42 int
43 main (void)
44 {
45 dwvw_test ("dwvw12.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_12, 12) ;
46 dwvw_test ("dwvw16.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_16, 16) ;
47 dwvw_test ("dwvw24.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_24, 24) ;
48
49 return 0 ;
50 } /* main */
51
52 static void
53 dwvw_test (const char *filename, int format, int bit_width)
54 { static int write_buf [BUFFER_SIZE] ;
55 static int read_buf [BUFFER_SIZE] ;
56
57 SNDFILE *file ;
58 SF_INFO sfinfo ;
59 double value ;
60 int k, bit_mask ;
61
62 srand (123456) ;
63
64 /* Only want to grab the top bit_width bits. */
65 bit_mask = (-1 << (32 - bit_width)) ;
66
67 print_test_name ("dwvw_test", filename) ;
68
69 sf_info_setup (&sfinfo, format, 44100, 1) ;
70
71 file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
72
73 /* Generate random.frames. */
74 for (k = 0 ; k < BUFFER_SIZE / 2 ; k++)
75 { value = 0x7FFFFFFF * sin (123.0 / sfinfo.samplerate * 2 * k * M_PI) ;
76 write_buf [k] = bit_mask & lrint (value) ;
77 } ;
78
79 for ( ; k < BUFFER_SIZE ; k++)
80 write_buf [k] = bit_mask & ((rand () << 11) ^ (rand () >> 11)) ;
81
82 sf_write_int (file, write_buf, BUFFER_SIZE) ;
83 sf_close (file) ;
84
85 file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
86
87 if ((k = sf_read_int (file, read_buf, BUFFER_SIZE)) != BUFFER_SIZE)
88 { printf ("Error (line %d) : Only read %d/%d.frames.\n", __LINE__, k, BUFFER_SIZE) ;
89 exit (1) ;
90 }
91
92 for (k = 0 ; k < BUFFER_SIZE ; k++)
93 { if (read_buf [k] != write_buf [k])
94 { printf ("Error (line %d) : %d != %d at position %d/%d\n", __LINE__,
95 write_buf [k] >> (32 - bit_width), read_buf [k] >> (32 - bit_width),
96 k, BUFFER_SIZE) ;
97 oct_save_int (write_buf, read_buf, BUFFER_SIZE) ;
98 exit (1) ;
99 } ;
100 } ;
101
102 sf_close (file) ;
103
104 unlink (filename) ;
105 printf ("ok\n") ;
106
107 return ;
108 } /* dwvw_test */
109