onset_detector.h

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/*
 * Copyright (C) 2008-2013 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2009-2011 David Robillard <d@drobilla.net>
 *
 * 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 "ardour/audioanalyser.h"
 
namespace ARDOUR {
 
class AudioSource;
class Session;
 
class LIBARDOUR_API OnsetDetector : public AudioAnalyser
{
public:
        OnsetDetector (float sample_rate);
        ~OnsetDetector();
 
        static std::string operational_identifier();
 
        void set_silence_threshold (float);
        void set_peak_threshold (float);
        void set_minioi (float);
        void set_function (int);
 
        int run (const std::string& path, AudioReadable*, uint32_t channel, AnalysisFeatureList& results);
 
        static void cleanup_onsets (AnalysisFeatureList&, float sr, float gap_msecs);
 
protected:
        AnalysisFeatureList* current_results;
        int use_features (Vamp::Plugin::FeatureSet&, std::ostream*);
 
        static std::string _op_id;
};
 
} /* namespace */