time.h

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/*
  time.h  -  Utilities for handling time

  Copyright (C)         Lumiera.org
    2008,               Christian Thaeter <ct@pipapo.org>

  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 LUMIERA_TIME_H
#define LUMIERA_TIME_H

#include <inttypes.h>
#include <gavl/gavl.h>

#ifdef __cplusplus /*=================== C++ facilities ===================== */
#include "lib/time/timevalue.hpp"


gavl_time_t
lumiera_rational_to_time (lib::time::FSecs const& fractionalSeconds);


gavl_time_t
lumiera_framecount_to_time (uint64_t frameCount, lib::time::FrameRate const& fps);


gavl_time_t
lumiera_frame_duration (lib::time::FrameRate const& fps);





extern "C" {    /* ===================== C interface ======================== */
#endif


int64_t
lumiera_quantise_frames (gavl_time_t time, gavl_time_t origin, gavl_time_t grid);

int64_t
lumiera_quantise_frames_fps (gavl_time_t time, gavl_time_t origin, uint framerate);

gavl_time_t
lumiera_quantise_time (gavl_time_t time, gavl_time_t origin, gavl_time_t grid);

gavl_time_t
lumiera_time_of_gridpoint (int64_t nr, gavl_time_t origin, gavl_time_t grid);

gavl_time_t
lumiera_build_time (long millis, uint secs, uint mins, uint hours);

gavl_time_t
lumiera_build_time_fps (uint fps, uint frames, uint secs, uint mins, uint hours);

gavl_time_t
lumiera_build_time_ntsc_drop (uint frames, uint secs, uint mins, uint hours);


int
lumiera_time_hours (gavl_time_t time);


int
lumiera_time_minutes (gavl_time_t time);


int
lumiera_time_seconds (gavl_time_t time);


int
lumiera_time_millis (gavl_time_t time);

int
lumiera_time_frames (gavl_time_t time, uint fps);

int
lumiera_time_ntsc_drop_frames (gavl_time_t time);

int
lumiera_time_ntsc_drop_seconds (gavl_time_t time);

int
lumiera_time_ntsc_drop_minutes (gavl_time_t time);

int
lumiera_time_ntsc_drop_hours (gavl_time_t time);


char*
lumiera_tmpbuf_print_time (gavl_time_t time);



#ifdef __cplusplus
}//extern "C"
#endif
#endif