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/*
Copyright (C) 2014-2015 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.
*/
#ifndef LIBSUB_SUB_TIME_H
#define LIBSUB_SUB_TIME_H
#include "rational.h"
#include <boost/optional.hpp>
namespace sub {
class Time
{
public:
Time ()
: _seconds (0)
, _frames (0)
{}
int hours () const;
int minutes () const;
int seconds () const;
int frames_at (Rational rate) const;
int milliseconds () const;
double all_as_seconds () const;
void add (Time t);
void scale (float f);
boost::optional<Rational> frame_rate() const {
return _rate;
}
static Time from_hmsf (int h, int m, int s, int f, boost::optional<Rational> rate = boost::optional<Rational> ());
static Time from_hms (int h, int m, int s, int ms);
static Time from_frames (int frames, Rational rate);
private:
friend bool operator< (Time const & a, Time const & b);
friend bool operator> (Time const & a, Time const & b);
friend bool operator== (Time const & a, Time const & b);
friend std::ostream& operator<< (std::ostream& s, Time const & t);
Time (int seconds, int frames, boost::optional<Rational> rate)
: _seconds (seconds)
, _frames (frames)
, _rate (rate)
{}
int _seconds;
int _frames;
boost::optional<Rational> _rate;
};
bool operator< (Time const & a, Time const & b);
bool operator> (Time const & a, Time const & b);
bool operator== (Time const & a, Time const & b);
bool operator!= (Time const & a, Time const & b);
std::ostream& operator<< (std::ostream& s, Time const & t);
}
#endif
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