pinknoisegenerator.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 PINKNOISEGENERATOR_H
#define PINKNOISEGENERATOR_H
 
#include <array>
 
#include <QRandomGenerator>
#include <QVector>
 
#include "sound/sampleprovider/sampleprovider.h"
#include "sound/swiftsoundexport.h"
 
namespace swift::sound::sample_provider
{
    class SWIFT_SOUND_EXPORT CPinkNoiseGenerator : public ISampleProvider
    {
        Q_OBJECT
 
    public:
        CPinkNoiseGenerator(QObject *parent = nullptr) : ISampleProvider(parent) {}
 
        virtual int readSamples(QVector<float> &samples, qint64 count) override;
 
        void setGain(double gain) { m_gain = gain; }
 
    private:
        QRandomGenerator m_random;
        std::array<double, 7> m_pinkNoiseBuffer = { { 0 } };
        double m_gain = 0.0;
    };
} // namespace swift::sound::sample_provider
 
#endif // PINKNOISEGENERATOR_H