2 Copyright (C) 2013 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_CONTENT_H
21 #define DCPOMATIC_AUDIO_CONTENT_H
24 #include "audio_mapping.h"
30 class AudioContentProperty
33 static int const AUDIO_CHANNELS;
34 static int const AUDIO_LENGTH;
35 static int const AUDIO_FRAME_RATE;
36 static int const AUDIO_GAIN;
37 static int const AUDIO_DELAY;
38 static int const AUDIO_MAPPING;
41 class AudioContent : public virtual Content
44 typedef int64_t Frame;
46 AudioContent (boost::shared_ptr<const Film>, Time);
47 AudioContent (boost::shared_ptr<const Film>, boost::filesystem::path);
48 AudioContent (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
49 AudioContent (boost::shared_ptr<const Film>, std::vector<boost::shared_ptr<Content> >);
51 void as_xml (xmlpp::Node *) const;
52 std::string technical_summary () const;
54 virtual int audio_channels () const = 0;
55 virtual AudioContent::Frame audio_length () const = 0;
56 virtual int content_audio_frame_rate () const = 0;
57 virtual int output_audio_frame_rate () const = 0;
58 virtual AudioMapping audio_mapping () const = 0;
59 virtual void set_audio_mapping (AudioMapping) = 0;
61 boost::signals2::connection analyse_audio (boost::function<void()>);
62 boost::filesystem::path audio_analysis_path () const;
64 void set_audio_gain (float);
65 void set_audio_delay (int);
67 float audio_gain () const {
68 boost::mutex::scoped_lock lm (_mutex);
72 int audio_delay () const {
73 boost::mutex::scoped_lock lm (_mutex);
78 /** Gain to apply to audio in dB */
80 /** Delay to apply to audio (positive moves audio later) in milliseconds */