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sdrangel/sdrbase/util/average.h

59 lines
2.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// //
// 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 as 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 General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////////
#ifndef _UTIL_AVERAGE_H_
#define _UTIL_AVERAGE_H_
#include <algorithm>
template <typename T, typename Total>
class AverageUtil
{
public:
AverageUtil()
: m_numSamples(0), m_total(0)
{ }
AverageUtil(T sample)
: m_numSamples(1), m_total(sample)
{ }
void reset()
{
m_numSamples = 0;
m_total = 0;
}
void operator()(T sample)
{
m_total += sample;
m_numSamples++;
}
double asDouble() const { return ((double)m_total) / (m_numSamples == 0 ? 1 : m_numSamples); }
float asFloat() const { return ((float)m_total) / (m_numSamples == 0 ? 1 : m_numSamples); }
operator T() const { return m_total / (m_numSamples == 0 ? 1 : m_numSamples); }
T instantAverage() const { return m_total / (m_numSamples == 0 ? 1 : m_numSamples); }
int getNumSamples() const { return m_numSamples; }
private:
int m_numSamples;
Total m_total;
};
#endif /* _UTIL_AVERAGE_H_ */