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 /** @file src/audio_merger.h
21 * @brief AudioMerger class.
24 #include "audio_buffers.h"
25 #include "dcpomatic_time.h"
28 /** @class AudioMerger.
29 * @brief A class that can merge audio data from many sources.
34 explicit AudioMerger (int frame_rate);
36 std::list<std::pair<std::shared_ptr<AudioBuffers>, dcpomatic::DCPTime> > pull (dcpomatic::DCPTime time);
37 void push (std::shared_ptr<const AudioBuffers> audio, dcpomatic::DCPTime time);
41 Frame frames (dcpomatic::DCPTime t) const;
49 * @param r Frame rate.
51 Buffer (int c, int32_t f, dcpomatic::DCPTime t, int r)
52 : audio (new AudioBuffers (c, f))
57 Buffer (std::shared_ptr<AudioBuffers> a, dcpomatic::DCPTime t, int r)
63 std::shared_ptr<AudioBuffers> audio;
64 dcpomatic::DCPTime time;
67 dcpomatic::DCPTimePeriod period () const {
68 return dcpomatic::DCPTimePeriod (time, time + dcpomatic::DCPTime::from_frames (audio->frames(), frame_rate));
72 class BufferComparator
75 bool operator() (AudioMerger::Buffer const & a, AudioMerger::Buffer const & b)
77 return a.time < b.time;
81 std::list<Buffer> _buffers;