113 lines
2.7 KiB
C++
113 lines
2.7 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#pragma once
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#include "VisualProcessor.h"
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#include "DemodDefs.h"
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#include <cmath>
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#include <memory>
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#include "SpinMutex.h"
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#define SPECTRUM_VZM 2
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#define PEAK_RESET_COUNT 30
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class SpectrumVisualData {
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public:
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std::vector<float> spectrum_points;
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std::vector<float> spectrum_hold_points;
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double fft_ceiling, fft_floor;
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long long centerFreq;
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int bandwidth;
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virtual ~SpectrumVisualData() {};
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};
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typedef std::shared_ptr<SpectrumVisualData> SpectrumVisualDataPtr;
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typedef ThreadBlockingQueue<SpectrumVisualDataPtr> SpectrumVisualDataQueue;
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typedef std::shared_ptr<SpectrumVisualDataQueue> SpectrumVisualDataQueuePtr;
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class SpectrumVisualProcessor : public VisualProcessor<DemodulatorThreadIQData, SpectrumVisualData> {
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public:
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SpectrumVisualProcessor();
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~SpectrumVisualProcessor();
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bool isView();
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void setView(bool bView);
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void setView(bool bView, long long centerFreq_in, long bandwidth_in);
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void setFFTAverageRate(float fftAverageRate);
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float getFFTAverageRate();
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void setCenterFrequency(long long centerFreq_in);
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long long getCenterFrequency();
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void setBandwidth(long bandwidth_in);
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long getBandwidth();
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void setPeakHold(bool peakHold_in);
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bool getPeakHold();
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int getDesiredInputSize();
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void setup(unsigned int fftSize);
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void setFFTSize(unsigned int fftSize);
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unsigned int getFFTSize();
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void setHideDC(bool hideDC);
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void setScaleFactor(float sf);
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float getScaleFactor();
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protected:
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virtual void process();
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ReBuffer<SpectrumVisualData> outputBuffers;
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private:
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//protects all access to fields below
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SpinMutex busy_run;
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bool is_view;
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size_t fftSize, newFFTSize;
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size_t fftSizeInternal;
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long long centerFreq;
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size_t bandwidth;
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long lastInputBandwidth;
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long lastBandwidth;
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bool lastView;
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liquid_float_complex *fftInput, *fftOutput, *fftInData, *fftLastData;
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fftplan fftPlan;
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unsigned int lastDataSize;
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double fft_ceil_ma, fft_ceil_maa;
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double fft_floor_ma, fft_floor_maa;
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double fft_ceil_peak, fft_floor_peak;
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float fft_average_rate;
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std::vector<double> fft_result;
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std::vector<double> fft_result_ma;
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std::vector<double> fft_result_maa;
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std::vector<double> fft_result_peak;
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std::vector<double> fft_result_temp;
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msresamp_crcf resampler;
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double resamplerRatio;
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nco_crcf freqShifter;
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long shiftFrequency;
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std::vector<liquid_float_complex> shiftBuffer;
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std::vector<liquid_float_complex> resampleBuffer;
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size_t desiredInputSize;
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bool hideDC, peakHold;
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int peakReset;
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float scaleFactor;
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bool fftSizeChanged;
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};
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