2 ** Copyright (C) 2002-2009 Erik de Castro Lopo <erikd@mega-nerd.com>
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.
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.
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.
33 #define BUFFER_SIZE (10000)
36 #define M_PI 3.14159265358979323846264338
39 static void dwvw_test (const char *filename, int format, int bit_width) ;
44 dwvw_test ("dwvw12.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_12, 12) ;
45 dwvw_test ("dwvw16.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_16, 16) ;
46 dwvw_test ("dwvw24.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_24, 24) ;
52 dwvw_test (const char *filename, int format, int bit_width)
53 { static int write_buf [BUFFER_SIZE] ;
54 static int read_buf [BUFFER_SIZE] ;
63 /* Only want to grab the top bit_width bits. */
64 bit_mask = (-1 << (32 - bit_width)) ;
66 print_test_name ("dwvw_test", filename) ;
68 sfinfo.format = format ;
69 sfinfo.samplerate = 44100 ;
70 sfinfo.frames = -1 ; /* Unknown! */
73 file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
75 /* Generate random.frames. */
76 for (k = 0 ; k < BUFFER_SIZE / 2 ; k++)
77 { value = 0x7FFFFFFF * sin (123.0 / sfinfo.samplerate * 2 * k * M_PI) ;
78 write_buf [k] = bit_mask & lrint (value) ;
81 for ( ; k < BUFFER_SIZE ; k++)
82 write_buf [k] = bit_mask & ((rand () << 11) ^ (rand () >> 11)) ;
84 sf_write_int (file, write_buf, BUFFER_SIZE) ;
87 file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
89 if ((k = sf_read_int (file, read_buf, BUFFER_SIZE)) != BUFFER_SIZE)
90 { printf ("Error (line %d) : Only read %d/%d.frames.\n", __LINE__, k, BUFFER_SIZE) ;
94 for (k = 0 ; k < BUFFER_SIZE ; k++)
95 { if (read_buf [k] != write_buf [k])
96 { printf ("Error (line %d) : %d != %d at position %d/%d\n", __LINE__,
97 write_buf [k] >> (32 - bit_width), read_buf [k] >> (32 - bit_width),
99 oct_save_int (write_buf, read_buf, BUFFER_SIZE) ;