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sdrangel/plugins/channelrx/wdsprx/wdsprxsink.h
2024-08-05 20:05:59 +02:00

129 lines
4.3 KiB
C++

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