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/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser 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 __ardour_smpte_h__
#define __ardour_smpte_h__
#include <inttypes.h>
namespace SMPTE {
enum Wrap {
NONE = 0,
FRAMES,
SECONDS,
MINUTES,
HOURS
};
struct Time {
bool negative;
uint32_t hours;
uint32_t minutes;
uint32_t seconds;
uint32_t frames; ///< SMPTE frames (not audio samples)
uint32_t subframes; ///< Typically unused
float rate; ///< Frame rate of this Time
static float default_rate;///< Rate to use for default constructor
bool drop; ///< Whether this Time uses dropframe SMPTE
Time(float a_rate = default_rate) {
negative = false;
hours = 0;
minutes = 0;
seconds = 0;
frames = 0;
subframes = 0;
rate = a_rate;
}
};
Wrap increment( Time& smpte, uint32_t );
Wrap decrement( Time& smpte, uint32_t );
Wrap increment_subframes( Time& smpte, uint32_t );
Wrap decrement_subframes( Time& smpte, uint32_t );
Wrap increment_seconds( Time& smpte, uint32_t );
Wrap increment_minutes( Time& smpte, uint32_t );
Wrap increment_hours( Time& smpte, uint32_t );
void frames_floor( Time& smpte );
void seconds_floor( Time& smpte );
void minutes_floor( Time& smpte );
void hours_floor( Time& smpte );
} // namespace SMPTE
#endif // __ardour_smpte_h__
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