view plugin/PiperVampPluginFactory.h @ 1752:6d09d68165a4 by-id

Further review of ById: make IDs only available when adding a model to the ById store, not by querying the item directly. This means any id encountered in the wild must have been added to the store at some point (even if later released), which simplifies reasoning about lifecycles

/* -*- 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_PIPER_VAMP_PLUGIN_FACTORY_H
#define SV_PIPER_VAMP_PLUGIN_FACTORY_H

#ifdef HAVE_PIPER

#include "FeatureExtractionPluginFactory.h"

#include <QMutex>
#include <vector>
#include <map>

#include "base/Debug.h"
#include "base/HelperExecPath.h"

/**
 * FeatureExtractionPluginFactory type for Vamp plugins hosted in a
 * separate process using Piper protocol.
 */
class PiperVampPluginFactory : public FeatureExtractionPluginFactory
{
public:
    PiperVampPluginFactory();
    virtual ~PiperVampPluginFactory();

    virtual std::vector<QString> getPluginIdentifiers(QString &errorMessage)
        override;

    virtual piper_vamp::PluginStaticData getPluginStaticData(QString identifier)
        override;
    
    virtual Vamp::Plugin *instantiatePlugin(QString identifier,
                                            sv_samplerate_t inputSampleRate)
        override;

    virtual QString getPluginCategory(QString identifier) override;

    virtual QString getPluginLibraryPath(QString identifier) override;

protected:
    QMutex m_mutex;
    QList<HelperExecPath::HelperExec> m_servers; // executable file paths
    std::map<QString, QString> m_origins; // plugin identifier -> server path
    std::map<QString, QString> m_libraries; // soname -> full file path
    std::map<QString, piper_vamp::PluginStaticData> m_pluginData; // identifier -> data
    std::map<QString, QString> m_taxonomy; // identifier -> category string

    bool serverMeetsMinimumVersion(const HelperExecPath::HelperExec &server,
                                   float minimumVersion);
    void populate(QString &errorMessage);
    void populateFrom(const HelperExecPath::HelperExec &, QString &errorMessage);

    class Logger;
    Logger *m_logger;
};

#endif

#endif