mirror of
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130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2024 Edouard Griffiths, F4EXB <f4exb06@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_WDSPRXSINK_H
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#define INCLUDE_WDSPRXSINK_H
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#include <QVector>
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#include "dsp/channelsamplesink.h"
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#include "dsp/ncof.h"
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#include "dsp/interpolator.h"
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#include "dsp/fftfilt.h"
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#include "dsp/firfilter.h"
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#include "audio/audiofifo.h"
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#include "util/doublebufferfifo.h"
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#include "bufferprobe.hpp"
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#include "wdsprxsettings.h"
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class SpectrumVis;
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class ChannelAPI;
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namespace WDSP {
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class RXA;
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}
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class WDSPRxSink : public ChannelSampleSink {
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public:
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WDSPRxSink();
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~WDSPRxSink();
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end);
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void setSpectrumSink(SpectrumVis* spectrumSink) { m_spectrumSink = spectrumSink; }
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void applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force = false);
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void applySettings(const WDSPRxSettings& settings, bool force = false);
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void applyAudioSampleRate(int sampleRate);
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AudioFifo *getAudioFifo() { return &m_audioFifo; }
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double getMagSq() const { return m_sAvg; }
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bool getAudioActive() const { return m_audioActive; }
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void setChannel(ChannelAPI *channel) { m_channel = channel; }
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void setAudioFifoLabel(const QString& label) { m_audioFifo.setLabel(label); }
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void getMagSqLevels(double& avg, double& peak, int& nbSamples);
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private:
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class SpectrumProbe : public WDSP::BufferProbe
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{
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public:
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SpectrumProbe(SampleVector& sampleVector);
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virtual void proceed(const float *in, int nbSamples);
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void setSpanLog2(int spanLog2);
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void setDSB(bool dsb) { m_dsb = dsb; }
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void setUSB(bool usb) { m_usb = usb; }
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private:
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SampleVector& m_sampleVector;
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int m_spanLog2;
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bool m_dsb;
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bool m_usb;
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uint32_t m_undersampleCount;
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std::complex<float> m_sum;
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};
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struct MagSqLevelsStore
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{
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MagSqLevelsStore() :
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m_magsq(1e-12),
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m_magsqPeak(1e-12)
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{}
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double m_magsq;
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double m_magsqPeak;
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};
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WDSPRxSettings m_settings;
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ChannelAPI *m_channel;
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Real m_Bandwidth;
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int m_undersampleCount;
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int m_channelSampleRate;
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int m_channelFrequencyOffset;
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double m_sAvg;
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double m_sPeak;
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int m_sCount;
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DoubleBufferFIFO<fftfilt::cmplx> m_squelchDelayLine;
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bool m_audioActive; //!< True if an audio signal is produced (no AGC or AGC and above threshold)
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NCOF 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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// fftfilt* SSBFilter;
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// fftfilt* DSBFilter;
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SpectrumVis* m_spectrumSink;
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SampleVector m_sampleBuffer;
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SpectrumProbe m_spectrumProbe;
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int m_inCount;
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AudioVector m_audioBuffer;
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std::size_t m_audioBufferFill;
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AudioFifo m_audioFifo;
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quint32 m_audioSampleRate;
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QVector<qint16> m_demodBuffer;
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int m_demodBufferFill;
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WDSP::RXA *m_rxa;
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static const int m_ssbFftLen;
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static const int m_wdspSampleRate;
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static const int m_wdspBufSize;
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void processOneSample(Complex &ci);
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};
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#endif // INCLUDE_SSBDEMODSINK_H
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