| /* |
| ** Copyright (C) 2002-2011 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 = (-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 & ((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 */ |
| |