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88 lines
3.6 KiB
C++
88 lines
3.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019-2021 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// Copyright (C) 2020-2021, 2023 Jon Beniston, M7RCE <jon@beniston.com> //
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// Copyright (C) 2020 Kacper Michajłow <kasper93@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDE_FREQSCANNERSINK_H
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#define INCLUDE_FREQSCANNERSINK_H
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#include <QDateTime>
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#include "dsp/channelsamplesink.h"
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#include "dsp/nco.h"
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#include "dsp/interpolator.h"
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#include "dsp/fftfactory.h"
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#include "dsp/fftengine.h"
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#include "dsp/fftwindow.h"
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#include "util/fixedaverage2d.h"
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#include "util/messagequeue.h"
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#include "freqscannersettings.h"
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class ChannelAPI;
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class FreqScanner;
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class FreqScannerSink : public ChannelSampleSink {
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public:
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FreqScannerSink(FreqScanner *packetDemod);
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~FreqScannerSink();
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end);
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void applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, int scannerSampleRate, int fftSize, int binsPerChannel, bool force = false);
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void applySettings(const FreqScannerSettings& settings, const QStringList& settingsKeys, bool force = false);
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void setMessageQueueToChannel(MessageQueue *messageQueue) { m_messageQueueToChannel = messageQueue; }
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void setChannel(ChannelAPI *channel) { m_channel = channel; }
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void setCenterFrequency(qint64 centerFrequency) { m_centerFrequency = centerFrequency; }
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private:
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FreqScanner *m_freqScanner;
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FreqScannerSettings m_settings;
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ChannelAPI *m_channel;
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int m_channelSampleRate;
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int m_channelFrequencyOffset;
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int m_scannerSampleRate; // Sample rate scanner runs at
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qint64 m_centerFrequency;
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NCO m_nco;
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Interpolator m_interpolator;
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Real m_interpolatorDistance;
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Real m_interpolatorDistanceRemain;
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MessageQueue *m_messageQueueToChannel;
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int m_fftSequence;
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FFTEngine *m_fft;
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int m_fftCounter;
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FFTWindow m_fftWindow;
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int m_fftSize;
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int m_binsPerChannel;
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QDateTime m_fftStartTime;
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FixedAverage2D<Real> m_fftAverage; // magSq average
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QVector<Real> m_magSq;
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int m_averageCount;
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void processOneSample(Complex &ci);
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MessageQueue *getMessageQueueToChannel() { return m_messageQueueToChannel; }
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Real totalPower(int bin, int channelBins) const;
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Real peakPower(int bin, int channelBins) const;
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Real magSq(int bin) const;
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};
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#endif // INCLUDE_FREQSCANNERSINK_H
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