2 Copyright (C) 2012 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/>.
21 #include "dolby_cp750.h"
27 DolbyCP750::DolbyCP750 ()
28 : CinemaSoundProcessor ("dolby_cp750", _("Dolby CP650 and CP750"))
34 DolbyCP750::db_for_fader_change (float from, float to) const
40 float const t = min (to, 4.0f);
41 db += (t - from) * 20;
45 float const t = max (from, 4.0f);
46 db += (to - t) * 3.33333333333333333;
50 float const t = max (to, 4.0f);
51 db -= (from - t) * 3.33333333333333333;
55 float const t = min (from, 4.0f);