76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*
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* Copyright (C) 2008-2010 David Robillard <d@drobilla.net>
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* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2015-2016 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_audioanalyser_h__
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#define __ardour_audioanalyser_h__
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#include <vector>
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#include <string>
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#include <boost/utility.hpp>
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#include <vamp-hostsdk/Plugin.h>
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#include "ardour/libardour_visibility.h"
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#include "ardour/types.h"
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namespace ARDOUR {
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class AudioReadable;
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class Session;
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class LIBARDOUR_API AudioAnalyser : public boost::noncopyable {
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public:
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typedef Vamp::Plugin AnalysisPlugin;
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typedef std::string AnalysisPluginKey;
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AudioAnalyser (float sample_rate, AnalysisPluginKey key);
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virtual ~AudioAnalyser();
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/* analysis object should provide a run method
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that accepts a path to write the results to (optionally empty)
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a AudioReadable* to read data from
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and a reference to a type-specific container to return the
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results.
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*/
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void reset ();
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protected:
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float sample_rate;
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AnalysisPlugin* plugin;
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AnalysisPluginKey plugin_key;
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samplecnt_t bufsize;
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samplecnt_t stepsize;
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int initialize_plugin (AnalysisPluginKey name, float sample_rate);
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int analyse (const std::string& path, AudioReadable*, uint32_t channel);
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/* instances of an analysis object will have this method called
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whenever there are results to process. if out is non-null,
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the data should be written to the stream it points to.
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*/
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virtual int use_features (Vamp::Plugin::FeatureSet&, std::ostream*) = 0;
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};
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} /* namespace */
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#endif /* __ardour_audioanalyser_h__ */
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