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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef FREQUENCYSPECTRUM_H
#define FREQUENCYSPECTRUM_H
#include <QtCore/QList>
/**
* Represents a frequency spectrum as a series of elements, each of which
* consists of a frequency, an amplitude and a phase.
*/
class FrequencySpectrum {
public:
FrequencySpectrum(int numPoints = 0);
struct Element {
Element()
: frequency(0.0), amplitude(0.0), phase(0.0), clipped(false)
{ }
/**
* Frequency in Hertz
*/
qreal frequency;
/**
* Amplitude in range [0.0, 1.0]
*/
qreal amplitude;
/**
* Phase in range [0.0, 2*PI]
*/
qreal phase;
/**
* Indicates whether value has been clipped during spectrum analysis
*/
bool clipped;
};
typedef QList<Element>::iterator iterator;
typedef QList<Element>::const_iterator const_iterator;
void reset();
int count() const;
Element& operator[](int index);
const Element& operator[](int index) const;
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
private:
QList<Element> m_elements;
};
#endif // FREQUENCYSPECTRUM_H
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