2 Copyright (C) 2009 Paul Davis
3 Author: David Robillard
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 $Id: midiregion.h 733 2006-08-01 17:19:38Z drobilla $
22 #include "pbd/stacktrace.h"
24 #include "ardour/beats_frames_converter.h"
25 #include "ardour/tempo.h"
29 /** Takes a positive duration in beats and considers it as a distance from the origin
30 * supplied to the constructor. Returns the equivalent number of frames,
31 * taking tempo changes into account.
34 BeatsFramesConverter::to (double beats) const
37 std::cerr << "negative beats passed to BFC: " << beats << std::endl;
38 PBD::stacktrace (std::cerr, 30);
41 framecnt_t r = _tempo_map.framepos_plus_beats (_origin_b, beats) - _origin_b;
45 /** Takes a duration in frames and considers it as a distance from the origin
46 * supplied to the constructor. Returns the equivalent number of beats,
47 * taking tempo changes into account.
50 BeatsFramesConverter::from (framecnt_t frames) const
52 double b = _tempo_map.framewalk_to_beats (_origin_b, frames);
56 } /* namespace ARDOUR */