volumesampleprovider.h

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// SPDX-FileCopyrightText: Copyright (C) 2019 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1
 
 
#ifndef SWIFT_SOUND_SAMPLEPROVIDER_VOLUMESAMPLEPROVIDER_H
#define SWIFT_SOUND_SAMPLEPROVIDER_VOLUMESAMPLEPROVIDER_H
 
#include "sound/sampleprovider/sampleprovider.h"
#include "sound/swiftsoundexport.h"
 
namespace swift::sound::sample_provider
{
    class SWIFT_SOUND_EXPORT CVolumeSampleProvider : public ISampleProvider
    {
        Q_OBJECT
 
    public:
        CVolumeSampleProvider(ISampleProvider *sourceProvider, QObject *parent = nullptr);
 
        virtual int readSamples(QVector<float> &samples, qint64 count) override;
 
        double getGainRatio() const { return m_gainRatio; }
        bool setGainRatio(double gainRatio);
        // those used to be the original function names
        // double volume() const { return m_volume; }
        // bool setVolume(double volume);
 
    private:
        ISampleProvider *m_sourceProvider = nullptr;
        double m_gainRatio = 1.0;
    };
} // namespace swift::sound::sample_provider
 
#endif // SWIFT_SOUND_SAMPLEPROVIDER_VOLUMESAMPLEPROVIDER_H