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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/dcp_time.h
* @brief A representation of time within a DCP.
*/
#ifndef LIBDCP_TIME_H
#define LIBDCP_TIME_H
#include <string>
#include <iostream>
#include <stdint.h>
namespace libdcp {
/** @class Time
* @brief A representation of time within a DCP.
*/
class Time
{
public:
Time () : h (0), m (0), s (0), t (0) {}
Time (int64_t ticks);
/** Construct a Time from a frame index (starting from 0)
* and a frames per second count.
*/
Time (int frame, int frames_per_second);
/** Construct a Time from hours, minutes, seconds and ticks.
* @param h_ Hours.
* @param m_ Minutes.
* @param s_ Seconds.
* @param t_ Ticks (where 1 tick is 4 milliseconds).
*/
Time (int h_, int m_, int s_, int t_)
: h (h_)
, m (m_)
, s (s_)
, t (t_)
{}
Time (std::string time);
int h; ///< hours
int m; ///< minutes
int s; ///< seconds
int t; ///< `ticks', where 1 tick is 4 milliseconds
std::string to_string () const;
int64_t to_ticks () const;
private:
void set (double);
};
extern bool operator== (Time const & a, Time const & b);
extern bool operator!= (Time const & a, Time const & b);
extern bool operator<= (Time const & a, Time const & b);
extern bool operator< (Time const & a, Time const & b);
extern bool operator> (Time const & a, Time const & b);
extern std::ostream & operator<< (std::ostream & s, Time const & t);
extern Time operator+ (Time a, Time const & b);
extern Time operator- (Time a, Time const & b);
extern float operator/ (Time a, Time const & b);
}
#endif
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