3 * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
4 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
6 * This file is part of a52dec, a free ATSC A-52 stream decoder.
7 * See http://liba52.sourceforge.net/ for updates.
9 * a52dec is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * a52dec is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 int main (int argc, char ** argv)
35 double max = 0, err = 0, square = 0;
39 f1 = fopen (argv[1], "rb");
40 f2 = fopen (argv[2], "rb");
41 if ((f1 == NULL) || (f2 == NULL)) {
42 printf ("cannot open file %s\n", (f1 == NULL) ? argv[1] : argv[2]);
46 i = fread (buf1, sizeof (float), 512, f1);
47 j = fread (buf2, sizeof (float), 512, f2);
48 if ((i < 512) || (j < 512))
50 for (i = 0; i < 512; i++) {
53 delta = buf2[i] - buf1[i];
55 square += delta * delta;
65 square = (square / total) - (err * err);
67 square = 32768 * sqrt (square);
70 printf ("max error %f mean error %f standard deviation %f\n",
72 return ((max > 0.01) || (err > 0.001) || (square > 0.001));
75 printf ("%s is too short\n", argv[1]);
77 printf ("%s is too short\n", argv[2]);