view plugin/FeatureExtractionPluginFactory.h @ 1394:9ef1cc26024c

Add Range01 normalisation method to ColumnOp. This is the normalisation that is actually used in the Colour 3D Plot layer historically when column normalisation is enabled (not Max1 after all).

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2016 Chris Cannam and QMUL.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef SV_FEATURE_EXTRACTION_PLUGIN_FACTORY_H
#define SV_FEATURE_EXTRACTION_PLUGIN_FACTORY_H

#include <vamp-hostsdk/Plugin.h>

#include "vamp-support/PluginStaticData.h"

#include "base/BaseTypes.h"

#include <QString>

class FeatureExtractionPluginFactory
{
public:
    static FeatureExtractionPluginFactory *instance();
    
    virtual ~FeatureExtractionPluginFactory() { }

    /**
     * Return all installed plugin identifiers.
     */
    virtual std::vector<QString> getPluginIdentifiers(QString &errorMessage) {
        return instance()->getPluginIdentifiers(errorMessage);
    }

    /**
     * Return static data for the given plugin.
     */
    virtual piper_vamp::PluginStaticData getPluginStaticData(QString identifier) {
        return instance()->getPluginStaticData(identifier);
    }

    /**
     * Instantiate (load) and return pointer to the plugin with the
     * given identifier, at the given sample rate. We don't set
     * blockSize or channels on this -- they're negotiated and handled
     * via initialize() on the plugin itself after loading.
     */
    virtual Vamp::Plugin *instantiatePlugin(QString identifier,
                                            sv_samplerate_t inputSampleRate) {
        return instance()->instantiatePlugin(identifier, inputSampleRate);
    }

    /**
     * Get category metadata about a plugin (without instantiating it).
     */
    virtual QString getPluginCategory(QString identifier) {
        return instance()->getPluginCategory(identifier);
    }
};

#endif