annotate plugin/PiperVampPluginFactory.h @ 1247:8f076d02569a piper

Make SVDEBUG always write to a log file -- formerly this was disabled in NDEBUG builds. I think there's little use to that, it just means that we keep adding more cerr debug output because we aren't getting the log we need. And SVDEBUG logging is not usually used in tight loops, I don't think the performance overhead is too serious.

Also update the About box.

/* -*- 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

#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;

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, piper_vamp::PluginStaticData> m_pluginData; // identifier -> data
    std::map<QString, QString> m_taxonomy; // identifier -> category string

    void populate(QString &errorMessage);
    void populateFrom(const HelperExecPath::HelperExec &, QString &errorMessage);
};

#endif