/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef DVDOMATIC_AUDIO_ANALYSIS_H
-#define DVDOMATIC_AUDIO_ANALYSIS_H
-#include <iostream>
+#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>
-#include <list>
-class AudioPoint
-{
-public:
- enum Type {
- PEAK,
- RMS,
- COUNT
- };
- AudioPoint ();
- AudioPoint (std::istream &);
+namespace xmlpp {
+ class Element;
+}
- void write (std::ostream &) const;
-
- float& operator[] (int t) {
- return _data[t];
- }
-private:
- float _data[COUNT];
-};
+class Playlist;
+
class AudioAnalysis
{
public:
- AudioAnalysis (int c);
- AudioAnalysis (std::string);
+ explicit AudioAnalysis (int c);
+ explicit AudioAnalysis (boost::filesystem::path);
void add_point (int c, AudioPoint const & p);
-
+
+ struct PeakTime {
+ PeakTime (float p, dcpomatic::DCPTime t)
+ : peak (p)
+ , time (t)
+ {}
+
+ float peak;
+ dcpomatic::DCPTime time;
+ };
+
+ void set_sample_peak (std::vector<PeakTime> peak) {
+ _sample_peak = peak;
+ }
+
+ void set_true_peak (std::vector<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;
- void write (std::string);
+ std::vector<PeakTime> sample_peak () const {
+ return _sample_peak;
+ }
+
+ std::pair<PeakTime, int> overall_sample_peak () const;
+
+ std::vector<float> true_peak () const {
+ return _true_peak;
+ }
+
+ boost::optional<float> overall_true_peak () const;
+
+ 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;
+ }
+
+ int64_t samples_per_point () const {
+ return _samples_per_point;
+ }
+
+ void set_samples_per_point (int64_t spp) {
+ _samples_per_point = spp;
+ }
+
+ int sample_rate () const {
+ return _sample_rate;
+ }
+
+ void set_sample_rate (int sr) {
+ _sample_rate = sr;
+ }
+
+ void set_leqm (double leqm) {
+ _leqm = leqm;
+ }
+
+ boost::optional<double> leqm () const {
+ return _leqm;
+ }
+
+ void write (boost::filesystem::path);
+
+ float gain_correction (std::shared_ptr<const Playlist> playlist);
private:
- std::vector<std::vector<AudioPoint> > _data;
+ std::vector<std::vector<AudioPoint>> _data;
+ std::vector<PeakTime> _sample_peak;
+ std::vector<float> _true_peak;
+ boost::optional<float> _integrated_loudness;
+ boost::optional<float> _loudness_range;
+ boost::optional<double> _leqm;
+ /** 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;
+ int64_t _samples_per_point = 0;
+ int _sample_rate = 0;
+
+ static int const _current_state_version;
};
+
#endif