2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/dcp_time.h
34 * @brief A representation of time within a DCP.
40 Time () : h (0), m (0), s (0), t (0) {}
44 /** Construct a Time from a frame index (starting from 0)
45 * and a frames per second count.
47 Time (int frame, int frames_per_second);
49 /** Construct a Time from hours, minutes, seconds and ticks.
53 * @param t_ Ticks (where 1 tick is 4 milliseconds).
55 Time (int h_, int m_, int s_, int t_)
62 Time (std::string time);
67 int t; ///< `ticks', where 1 tick is 4 milliseconds
69 std::string to_string () const;
70 int64_t to_ticks () const;
71 double to_seconds () const;
77 extern bool operator== (Time const & a, Time const & b);
78 extern bool operator!= (Time const & a, Time const & b);
79 extern bool operator<= (Time const & a, Time const & b);
80 extern bool operator< (Time const & a, Time const & b);
81 extern bool operator> (Time const & a, Time const & b);
82 extern std::ostream & operator<< (std::ostream & s, Time const & t);
83 extern Time operator+ (Time a, Time const & b);
84 extern Time operator- (Time a, Time const & b);
85 extern float operator/ (Time a, Time const & b);