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sdrangel/plugins/channelrx/radioastronomy/radioastronomysink.h
2021-10-12 11:31:14 +01:00

124 lines
4.1 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 Edouard Griffiths, F4EXB //
// Copyright (C) 2021 Jon Beniston, M7RCE //
// //
// 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 INCLUDE_RADIOASTRONOMYSINK_H
#define INCLUDE_RADIOASTRONOMYSINK_H
#include "dsp/channelsamplesink.h"
#include "dsp/nco.h"
#include "dsp/interpolator.h"
#include "dsp/fftfactory.h"
#include "dsp/fftengine.h"
#include "dsp/fftwindow.h"
#include "util/movingaverage.h"
#include "util/messagequeue.h"
#include "radioastronomysettings.h"
class ChannelAPI;
class RadioAstronomy;
class RadioAstronomySink : public ChannelSampleSink {
public:
RadioAstronomySink(RadioAstronomy *aisDemod);
~RadioAstronomySink();
virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end);
void applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, bool force = false);
void applySettings(const RadioAstronomySettings& settings, bool force = false);
void setMessageQueueToChannel(MessageQueue *messageQueue) { m_messageQueueToChannel = messageQueue; }
void setChannel(ChannelAPI *channel) { m_channel = channel; }
void startMeasurements();
void stopMeasurements();
void startCal(bool hot);
void clearCal();
double getMagSq() const { return m_magsq; }
void getMagSqLevels(double& avg, double& peak, int& nbSamples)
{
if (m_magsqCount > 0)
{
m_magsq = m_magsqSum / m_magsqCount;
m_magSqLevelStore.m_magsq = m_magsq;
m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
}
avg = m_magSqLevelStore.m_magsq;
peak = m_magSqLevelStore.m_magsqPeak;
nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
m_magsqSum = 0.0f;
m_magsqPeak = 0.0f;
m_magsqCount = 0;
}
private:
struct MagSqLevelsStore
{
MagSqLevelsStore() :
m_magsq(1e-12),
m_magsqPeak(1e-12)
{}
double m_magsq;
double m_magsqPeak;
};
RadioAstronomy *m_radioAstronomy;
RadioAstronomySettings m_settings;
ChannelAPI *m_channel;
int m_channelSampleRate;
int m_channelFrequencyOffset;
int m_fftSequence;
FFTEngine *m_fft;
FFTWindow m_fftWindow;
int m_fftCounter;
QList<int> m_filterBins;
Real *m_fftSum;
Real *m_fftTemp;
int m_fftSumCount;
bool m_enabled;
bool m_cal;
bool m_hot;
NCO m_nco;
Interpolator m_interpolator;
Real m_interpolatorDistance;
Real m_interpolatorDistanceRemain;
double m_magsq;
double m_magsqSum;
double m_magsqPeak;
int m_magsqCount;
MagSqLevelsStore m_magSqLevelStore;
MessageQueue *m_messageQueueToChannel;
MovingAverageUtil<Real, double, 16> m_movingAverage;
void processOneSample(Complex &ci);
MessageQueue *getMessageQueueToChannel() { return m_messageQueueToChannel; }
};
#endif // INCLUDE_RADIOASTRONOMYSINK_H