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/*
Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef DCPOMATIC_AUDIO_ANALYSIS_H
#define DCPOMATIC_AUDIO_ANALYSIS_H
#include "dcpomatic_time.h"
#include "audio_point.h"
#include <libcxml/cxml.h>
#include <boost/optional.hpp>
#include <boost/filesystem.hpp>
#include <vector>
namespace xmlpp {
class Element;
}
class Playlist;
class AudioAnalysis : public boost::noncopyable
{
public:
AudioAnalysis (int c);
AudioAnalysis (boost::filesystem::path);
void add_point (int c, AudioPoint const & p);
void set_sample_peak (float peak, DCPTime time) {
_sample_peak = peak;
_sample_peak_time = time;
}
void set_true_peak (float peak) {
_true_peak = peak;
}
void set_integrated_loudness (float l) {
_integrated_loudness = l;
}
void set_loudness_range (float r) {
_loudness_range = r;
}
AudioPoint get_point (int c, int p) const;
int points (int c) const;
int channels () const;
boost::optional<float> sample_peak () const {
return _sample_peak;
}
boost::optional<DCPTime> sample_peak_time () const {
return _sample_peak_time;
}
boost::optional<float> true_peak () const {
return _true_peak;
}
boost::optional<float> integrated_loudness () const {
return _integrated_loudness;
}
boost::optional<float> loudness_range () const {
return _loudness_range;
}
boost::optional<double> analysis_gain () const {
return _analysis_gain;
}
void set_analysis_gain (double gain) {
_analysis_gain = gain;
}
void write (boost::filesystem::path);
float gain_correction (boost::shared_ptr<const Playlist> playlist);
private:
std::vector<std::vector<AudioPoint> > _data;
boost::optional<float> _sample_peak;
boost::optional<DCPTime> _sample_peak_time;
boost::optional<float> _true_peak;
boost::optional<float> _integrated_loudness;
boost::optional<float> _loudness_range;
/** If this analysis was run on a single piece of
* content we store its gain in dB when the analysis
* happened.
*/
boost::optional<double> _analysis_gain;
};
#endif
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