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/*
Copyright (C) 2012-2018 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/>.
*/
/** @file src/lib/analyse_audio_job.h
* @brief AnalyseAudioJob class.
*/
#include "job.h"
#include "audio_point.h"
#include "types.h"
#include "dcpomatic_time.h"
class AudioBuffers;
class AudioAnalysis;
class Playlist;
class AudioPoint;
class AudioFilterGraph;
class Filter;
/** @class AnalyseAudioJob
* @brief A job to analyse the audio of a film and make a note of its
* broad peak and RMS levels.
*
* After computing the peak and RMS levels the job will write a file
* to Film::audio_analysis_path.
*/
class AnalyseAudioJob : public Job
{
public:
AnalyseAudioJob (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist>, bool from_zero);
~AnalyseAudioJob ();
std::string name () const;
std::string json_name () const;
void run ();
boost::filesystem::path path () const {
return _path;
}
private:
void analyse (boost::shared_ptr<const AudioBuffers>, dcpomatic::DCPTime time);
boost::shared_ptr<const Playlist> _playlist;
/** playlist's audio analysis path when the job was created */
boost::filesystem::path _path;
dcpomatic::DCPTime _start;
bool _from_zero;
int64_t _done;
int64_t _samples_per_point;
AudioPoint* _current;
float* _sample_peak;
Frame* _sample_peak_frame;
boost::shared_ptr<AudioAnalysis> _analysis;
boost::shared_ptr<AudioFilterGraph> _ebur128;
std::vector<Filter const *> _filters;
static const int _num_points;
};
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