/*
    QMPlay2 is a video and audio player.
    Copyright (C) 2010-2020  Błażej Szczygieł

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published
    by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <ModuleCommon.hpp>

#include <QVector>

class QMPLAY2SHAREDLIB_EXPORT AudioFilter : public ModuleCommon
{
public:
    static QVector<AudioFilter *> open();

    virtual bool setAudioParameters(uchar chn, uint srate) = 0;
    virtual int bufferedSamples() const;
    virtual void clearBuffers();
    virtual double filter(QByteArray &data, bool flush = false) = 0; //returns delay in [s]
};
