2 Copyright (C) 2020-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
22 #include "dcpomatic_time.h"
23 #include <boost/optional.hpp>
27 class FrameIntervalChecker
30 FrameIntervalChecker () {}
31 FrameIntervalChecker (FrameIntervalChecker const &) = delete;
32 FrameIntervalChecker& operator= (FrameIntervalChecker const &) = delete;
34 void feed (dcpomatic::ContentTime time, double frame_rate);
46 boost::optional<dcpomatic::ContentTime> _last;
47 /** Intervals of last frames, in fractions of a frame; i.e. 1 in here
48 * means the last two frames were one frame interval apart according
49 * to the frame rate passed to ::feed().
51 std::vector<double> _intervals;
53 static int const _frames;