6313751f75
LGPL'd SMPTE code and moved in to libardour_cp; Juggled control_protocol dir layout to be the same as other libs; git-svn-id: svn://localhost/ardour2/trunk@610 d708f5d6-7413-0410-9779-e7cbd77b26cf
81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
/*
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Copyright (C) 2006 Paul Davis
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ardour_smpte_h__
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#define __ardour_smpte_h__
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#include <inttypes.h>
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namespace SMPTE {
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enum Wrap {
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NONE = 0,
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FRAMES,
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SECONDS,
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MINUTES,
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HOURS
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};
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/** SMPTE frame rate (in frames per second).
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*
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* This should be eliminated in favour of a float to support arbitrary rates.
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*/
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enum FPS {
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MTC_24_FPS = 0,
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MTC_25_FPS = 1,
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MTC_30_FPS_DROP = 2,
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MTC_30_FPS = 3
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};
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struct Time {
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bool negative;
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uint32_t hours;
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uint32_t minutes;
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uint32_t seconds;
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uint32_t frames; ///< SMPTE frames (not audio samples)
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uint32_t subframes; ///< Typically unused
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FPS rate; ///< Frame rate of this Time
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static FPS default_rate; ///< Rate to use for default constructor
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Time(FPS a_rate = default_rate) {
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negative = false;
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hours = 0;
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minutes = 0;
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seconds = 0;
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frames = 0;
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subframes = 0;
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rate = a_rate;
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}
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};
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Wrap increment( Time& smpte );
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Wrap decrement( Time& smpte );
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Wrap increment_subframes( Time& smpte );
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Wrap decrement_subframes( Time& smpte );
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Wrap increment_seconds( Time& smpte );
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Wrap increment_minutes( Time& smpte );
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Wrap increment_hours( Time& smpte );
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void frames_floor( Time& smpte );
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void seconds_floor( Time& smpte );
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void minutes_floor( Time& smpte );
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void hours_floor( Time& smpte );
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} // namespace SMPTE
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#endif // __ardour_smpte_h__
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