2 Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/lib/analyse_audio_job.h
22 * @brief AnalyseAudioJob class.
26 #include "audio_point.h"
28 #include "dcpomatic_time.h"
30 #include <boost/scoped_ptr.hpp>
36 class AudioFilterGraph;
39 /** @class AnalyseAudioJob
40 * @brief A job to analyse the audio of a film and make a note of its
41 * broad peak and RMS levels.
43 * After computing the peak and RMS levels the job will write a file
44 * to Film::audio_analysis_path.
46 class AnalyseAudioJob : public Job
49 AnalyseAudioJob (std::shared_ptr<const Film>, std::shared_ptr<const Playlist>, bool from_zero);
52 std::string name () const;
53 std::string json_name () const;
56 boost::filesystem::path path () const {
61 void analyse (std::shared_ptr<const AudioBuffers>, dcpomatic::DCPTime time);
63 std::shared_ptr<const Playlist> _playlist;
64 /** playlist's audio analysis path when the job was created */
65 boost::filesystem::path _path;
66 dcpomatic::DCPTime _start;
70 Frame _samples_per_point;
74 Frame* _sample_peak_frame;
76 std::shared_ptr<AudioAnalysis> _analysis;
78 std::shared_ptr<AudioFilterGraph> _ebur128;
79 std::vector<Filter const *> _filters;
81 boost::scoped_ptr<leqm_nrt::Calculator> _leqm;
83 static const int _num_points;