item update code added
[omnplay] / src / timecode.c
1 /*
2 * timecode.c -- GTK+ 2 omnplay
3 * Copyright (C) 2011 Maksym Veremeyenko <verem@m1stereo.tv>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #include <stdio.h>
21
22 char* frames2tc(int f, float fps, char* buf)
23 {
24 int tc[4] = { 0, 0, 0, 0 };
25 float d;
26 int t;
27
28 if ( fps && f >= 0)
29 {
30 d = f / fps;
31 t = d;
32
33 tc[0] = (d - t) * fps;
34 tc[1] = t % 60; t /= 60;
35 tc[2] = t % 60; t /= 60;
36 tc[3] = t % 24;
37 }
38
39 sprintf(buf, "%.2d:%.2d:%.2d:%.2d", tc[3], tc[2], tc[1], tc[0]);
40
41 return buf;
42 }
43
44
45 int tc2frames(char* tc, float fps, int *f)
46 {
47 int hh, mm, ss, ff;
48
49 *f = 0;
50
51 if(4 != sscanf(tc, "%d:%d:%d:%d",
52 &hh, &mm, &ss, &ff))
53 return -1;
54
55 *f = ff + fps * (ss + 60 * (mm + 60 * hh));
56
57 return 0;
58 }