2 Copyright (C) 2013-2017 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef DCPOMATIC_AUDIO_MERGER_H
21 #define DCPOMATIC_AUDIO_MERGER_H
23 /** @file src/audio_merger.h
24 * @brief AudioMerger class.
27 #include "audio_buffers.h"
28 #include "dcpomatic_time.h"
31 /** @class AudioMerger.
32 * @brief A class that can merge audio data from many sources.
37 explicit AudioMerger (int frame_rate);
39 std::list<std::pair<boost::shared_ptr<AudioBuffers>, DCPTime> > pull (DCPTime time);
40 void push (boost::shared_ptr<const AudioBuffers> audio, DCPTime time);
44 Frame frames (DCPTime t) const;
52 * @param r Frame rate.
54 Buffer (int c, int32_t f, DCPTime t, int r)
55 : audio (new AudioBuffers (c, f))
60 Buffer (boost::shared_ptr<AudioBuffers> a, DCPTime t, int r)
66 boost::shared_ptr<AudioBuffers> audio;
70 DCPTimePeriod period () const {
71 return DCPTimePeriod (time, time + DCPTime::from_frames (audio->frames(), frame_rate));
75 class BufferComparator
78 bool operator() (AudioMerger::Buffer const & a, AudioMerger::Buffer const & b)
80 return a.time < b.time;
84 std::list<Buffer> _buffers;