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/*
Copyright (C) 2021 Carl Hetherington <cth@carlh.net>
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.
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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "audio_analysis.h"
#include "audio_filter_graph.h"
#include "dcpomatic_time.h"
#include "types.h"
#include <leqm_nrt.h>
#include <boost/scoped_ptr.hpp>
#include <memory>
class AudioAnalysis;
class AudioBuffers;
class AudioPoint;
class Film;
class Filter;
class Playlist;
class AudioAnalyser
{
public:
AudioAnalyser(std::shared_ptr<const Film> film, std::shared_ptr<const Playlist> playlist, bool whole_film, std::function<void (float)> set_progress);
AudioAnalyser(AudioAnalyser const&) = delete;
AudioAnalyser& operator=(AudioAnalyser const&) = delete;
void analyse(std::shared_ptr<AudioBuffers>, dcpomatic::DCPTime time);
dcpomatic::DCPTime start() const {
return _start;
}
void finish();
AudioAnalysis get() const {
return _analysis;
}
private:
std::shared_ptr<const Film> _film;
std::shared_ptr<const Playlist> _playlist;
std::function<void (float)> _set_progress;
dcpomatic::DCPTime _start;
#ifdef DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG
AudioFilterGraph _ebur128;
#endif
std::vector<Filter> _filters;
Frame _samples_per_point = 1;
boost::scoped_ptr<leqm_nrt::Calculator> _leqm;
int _leqm_channels = 0;
Frame _done = 0;
std::vector<float> _sample_peak;
std::vector<Frame> _sample_peak_frame;
std::vector<AudioPoint> _current;
AudioAnalysis _analysis;
};
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