analysis_graph.h

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/*
 * Copyright (C) 2016 John Emmas <john@creativepost.co.uk>
 * Copyright (C) 2016 Robin Gareus <robin@gareus.org>
 * Copyright (C) 2017 Paul Davis <paul@linuxaudiosystems.com>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include <map>
#include <memory>
#include <set>
#include <cstring>
 
#include "ardour/audioregion.h"
#include "ardour/audioplaylist.h"
#include "ardour/export_analysis.h"
#include "ardour/libardour_visibility.h"
 
namespace AudioGrapher {
        class Analyser;
        template <typename T> class Chunker;
        template <typename T> class Interleaver;
}
 
namespace PBD {
        class Progress;
}
 
namespace ARDOUR {
 
class LIBARDOUR_API AnalysisGraph {
        public:
                AnalysisGraph (ARDOUR::Session*);
                ~AnalysisGraph ();
 
                void analyze_region (ARDOUR::AudioRegion const*, bool raw = false, PBD::Progress* = 0);
                void analyze_region (std::shared_ptr<ARDOUR::AudioRegion>, bool raw = false);
 
                void analyze_range (std::shared_ptr<ARDOUR::Route>, std::shared_ptr<ARDOUR::AudioPlaylist>, const std::list<TimelineRange>&);
 
                const AnalysisResults& results () const { return _results; }
 
                void cancel () { _canceled = true; }
                bool canceled () const { return _canceled; }
 
                void set_total_samples (samplecnt_t p) { _samples_end = p; }
                PBD::Signal<void(samplecnt_t, samplecnt_t)> Progress;
 
        private:
                ARDOUR::Session* _session;
                AnalysisResults  _results;
                samplecnt_t       _max_chunksize;
 
                ARDOUR::Sample*  _buf;
                ARDOUR::Sample*  _mixbuf;
                float*           _gainbuf;
                samplecnt_t       _samples_read;
                samplecnt_t       _samples_end;
                bool             _canceled;
 
                typedef std::shared_ptr<AudioGrapher::Analyser> AnalysisPtr;
                typedef std::shared_ptr<AudioGrapher::Chunker<float> > ChunkerPtr;
                typedef std::shared_ptr<AudioGrapher::Interleaver<Sample> > InterleaverPtr;
 
                InterleaverPtr  interleaver;
                ChunkerPtr      chunker;
                AnalysisPtr     analyser;
};
} // namespace ARDOUR