effect.h

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/***************************************************************************
 *   Copyright (C) 2007-2024 by Ilya Kotov                                 *
 *   forkotov02@ya.ru                                                      *
 *                                                                         *
 *   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.                          *
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 *   You should have received a copy of the GNU General Public License     *
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 *   Free Software Foundation, Inc.,                                       *
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 ***************************************************************************/

#ifndef EFFECT_H
#define EFFECT_H

#include <QList>
#include <QStringList>
#include "audioparameters.h"
#include "channelmap.h"
#include "buffer.h"
#include "effectfactory.h"

class QmmpPluginCache;

class QMMP_EXPORT Effect
{
public:
    Effect() = default;
    virtual ~Effect() = default;

    virtual void applyEffect(Buffer *b) = 0;
    virtual void configure(quint32 srate, ChannelMap map);
    quint32 sampleRate() const;
    int channels() const;
    const ChannelMap &channelMap() const;
    AudioParameters audioParameters() const;
    EffectFactory* factory() const;
    static Effect* create(EffectFactory *factory);
    static QList<EffectFactory*> factories();
    static QList<EffectFactory*> enabledFactories();
    static QString file(const EffectFactory *factory);
    static void setEnabled(EffectFactory *factory, bool enable = true);
    static bool isEnabled(const EffectFactory* factory);
    static EffectFactory *findFactory(const QString &shortName);

private:
    EffectFactory *m_factory = nullptr;
    quint32 m_freq = 0;
    int m_channels = 0;
    ChannelMap m_chan_map;

    static void loadPlugins();
    static QList<QmmpPluginCache*> *m_cache;
    static QStringList m_enabledNames;

};

#endif