2 Copyright (C) 2013-2021 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 /** @file src/lib/audio_mapping.h
23 * @brief AudioMapping class.
27 #ifndef DCPOMATIC_AUDIO_MAPPING_H
28 #define DCPOMATIC_AUDIO_MAPPING_H
31 #include <dcp/types.h>
32 #include <libcxml/cxml.h>
43 /** @class AudioMapping.
44 * @brief A many-to-many mapping of audio channels.
50 AudioMapping (int input_channels, int output_channels);
51 AudioMapping (cxml::ConstNodePtr, int);
53 /* Default copy constructor is fine */
55 void as_xml (xmlpp::Node *) const;
58 void make_default (AudioProcessor const * processor, boost::optional<boost::filesystem::path> filename = boost::optional<boost::filesystem::path>());
60 void set (dcp::Channel input_channel, int output_channel, float);
61 void set (int input_channel, int output_channel, float);
62 void set (int input_channel, dcp::Channel output_channel, float);
63 float get (int input_channel, int output_channel) const;
64 float get (int input_channel, dcp::Channel output_channel) const;
66 int input_channels () const {
70 int output_channels () const {
71 return _gain.empty() ? 0 : _gain[0].size();
74 std::string digest () const;
76 std::list<int> mapped_output_channels () const;
79 void take_from(AudioMapping const& other);
82 void setup (int input_channels, int output_channels);
85 std::vector<std::vector<float>> _gain;