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/*
* Copyright (C) 2008-2010 David Robillard <d@drobilla.net>
* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015-2016 Robin Gareus <robin@gareus.org>
*
* 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.
*/
#ifndef __ardour_audioanalyser_h__
#define __ardour_audioanalyser_h__
#include <vector>
#include <string>
#include <boost/utility.hpp>
#include <vamp-hostsdk/Plugin.h>
#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
namespace ARDOUR {
class Readable;
class Session;
class LIBARDOUR_API AudioAnalyser : public boost::noncopyable {
public:
typedef Vamp::Plugin AnalysisPlugin;
typedef std::string AnalysisPluginKey;
AudioAnalyser (float sample_rate, AnalysisPluginKey key);
virtual ~AudioAnalyser();
/* analysis object should provide a run method
that accepts a path to write the results to (optionally empty)
a Readable* to read data from
and a reference to a type-specific container to return the
results.
*/
void reset ();
protected:
float sample_rate;
AnalysisPlugin* plugin;
AnalysisPluginKey plugin_key;
samplecnt_t bufsize;
samplecnt_t stepsize;
int initialize_plugin (AnalysisPluginKey name, float sample_rate);
int analyse (const std::string& path, Readable*, uint32_t channel);
/* instances of an analysis object will have this method called
whenever there are results to process. if out is non-null,
the data should be written to the stream it points to.
*/
virtual int use_features (Vamp::Plugin::FeatureSet&, std::ostream*) = 0;
};
} /* namespace */
#endif /* __ardour_audioanalyser_h__ */
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