Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 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 | |