mirror of
https://github.com/f4exb/sdrangel.git
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294 lines
7.7 KiB
C++
294 lines
7.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 F4EXB //
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// written by Edouard Griffiths //
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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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// //
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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_DSDDEMOD_H
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#define INCLUDE_DSDDEMOD_H
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#include <dsp/basebandsamplesink.h>
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#include <dsp/phasediscri.h>
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#include <QMutex>
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#include <vector>
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#include "dsp/nco.h"
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#include "dsp/interpolator.h"
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#include "dsp/lowpass.h"
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#include "dsp/bandpass.h"
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#include "dsp/afsquelch.h"
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#include "dsp/movingaverage.h"
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#include "dsp/afsquelch.h"
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#include "audio/audiofifo.h"
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#include "util/message.h"
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#include "../../channelrx/demoddsd/dsddecoder.h"
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class DSDDemodGUI;
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class DSDDemod : public BasebandSampleSink {
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public:
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DSDDemod(BasebandSampleSink* sampleSink);
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~DSDDemod();
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void configure(MessageQueue* messageQueue,
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int rfBandwidth,
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int demodGain,
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int volume,
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int baudRate,
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int fmDeviation,
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int squelchGate,
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Real squelch,
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bool audioMute,
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bool enableCosineFiltering,
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bool syncOrConstellation,
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bool slot1On,
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bool slot2On,
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bool tdmaStereo);
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void configureMyPosition(MessageQueue* messageQueue, float myLatitude, float myLongitude);
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
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virtual void start();
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virtual void stop();
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virtual bool handleMessage(const Message& cmd);
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void registerGUI(DSDDemodGUI *dsdDemodGUI) {
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m_dsdDemodGUI = dsdDemodGUI;
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}
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double getMagSq() { return m_magsq; }
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bool getSquelchOpen() const { return m_squelchOpen; }
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const DSDDecoder& getDecoder() const { return m_dsdDecoder; }
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void getMagSqLevels(Real& avg, Real& peak, int& nbSamples)
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{
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avg = m_magsqSum / m_magsqCount;
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m_magsq = avg;
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peak = m_magsqPeak;
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nbSamples = m_magsqCount;
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m_magsqSum = 0.0f;
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m_magsqPeak = 0.0f;
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m_magsqCount = 0;
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}
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private:
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class MsgConfigureMyPosition : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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float getMyLatitude() const { return m_myLatitude; }
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float getMyLongitude() const { return m_myLongitude; }
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static MsgConfigureMyPosition* create(float myLatitude, float myLongitude)
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{
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return new MsgConfigureMyPosition(myLatitude, myLongitude);
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}
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private:
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float m_myLatitude;
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float m_myLongitude;
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MsgConfigureMyPosition(float myLatitude, float myLongitude) :
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m_myLatitude(myLatitude),
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m_myLongitude(myLongitude)
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{}
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};
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class MsgConfigureDSDDemod : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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int getRFBandwidth() const { return m_rfBandwidth; }
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int getDemodGain() const { return m_demodGain; }
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int getFMDeviation() const { return m_fmDeviation; }
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int getVolume() const { return m_volume; }
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int getBaudRate() const { return m_baudRate; }
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int getSquelchGate() const { return m_squelchGate; }
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Real getSquelch() const { return m_squelch; }
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bool getAudioMute() const { return m_audioMute; }
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bool getEnableCosineFiltering() const { return m_enableCosineFiltering; }
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bool getSyncOrConstellation() const { return m_syncOrConstellation; }
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bool getSlot1On() const { return m_slot1On; }
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bool getSlot2On() const { return m_slot2On; }
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bool getTDMAStereo() const { return m_tdmaStereo; }
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static MsgConfigureDSDDemod* create(int rfBandwidth,
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int demodGain,
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int fmDeviation,
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int volume,
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int baudRate,
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int squelchGate,
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Real squelch,
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bool audioMute,
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bool enableCosineFiltering,
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bool syncOrConstellation,
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bool slot1On,
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bool slot2On,
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bool tdmaStereo)
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{
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return new MsgConfigureDSDDemod(rfBandwidth,
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demodGain,
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fmDeviation,
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volume,
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baudRate,
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squelchGate,
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squelch,
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audioMute,
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enableCosineFiltering,
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syncOrConstellation,
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slot1On,
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slot2On,
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tdmaStereo);
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}
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private:
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Real m_rfBandwidth;
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Real m_demodGain;
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int m_fmDeviation;
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int m_volume;
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int m_baudRate;
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int m_squelchGate;
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Real m_squelch;
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bool m_audioMute;
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bool m_enableCosineFiltering;
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bool m_syncOrConstellation;
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bool m_slot1On;
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bool m_slot2On;
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bool m_tdmaStereo;
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MsgConfigureDSDDemod(int rfBandwidth,
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int demodGain,
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int fmDeviation,
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int volume,
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int baudRate,
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int squelchGate,
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Real squelch,
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bool audioMute,
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bool enableCosineFiltering,
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bool syncOrConstellation,
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bool slot1On,
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bool slot2On,
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bool tdmaStereo) :
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Message(),
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m_rfBandwidth(rfBandwidth),
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m_demodGain(demodGain),
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m_fmDeviation(fmDeviation),
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m_volume(volume),
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m_baudRate(baudRate),
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m_squelchGate(squelchGate),
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m_squelch(squelch),
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m_audioMute(audioMute),
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m_enableCosineFiltering(enableCosineFiltering),
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m_syncOrConstellation(syncOrConstellation),
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m_slot1On(slot1On),
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m_slot2On(slot2On),
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m_tdmaStereo(tdmaStereo)
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{ }
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};
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struct AudioSample {
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qint16 l;
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qint16 r;
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};
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typedef std::vector<AudioSample> AudioVector;
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enum RateState {
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RSInitialFill,
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RSRunning
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};
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struct Config {
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int m_inputSampleRate;
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qint64 m_inputFrequencyOffset;
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int m_rfBandwidth;
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int m_demodGain;
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int m_volume;
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int m_baudRate;
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int m_fmDeviation;
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int m_squelchGate;
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Real m_squelch;
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bool m_audioMute;
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quint32 m_audioSampleRate;
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bool m_enableCosineFiltering;
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bool m_syncOrConstellation;
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bool m_slot1On;
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bool m_slot2On;
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bool m_tdmaStereo;
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Config() :
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m_inputSampleRate(-1),
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m_inputFrequencyOffset(0),
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m_rfBandwidth(-1),
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m_demodGain(-1),
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m_volume(-1),
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m_baudRate(4800),
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m_fmDeviation(1),
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m_squelchGate(1),
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m_squelch(0),
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m_audioMute(false),
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m_audioSampleRate(0),
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m_enableCosineFiltering(false),
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m_syncOrConstellation(false),
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m_slot1On(false),
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m_slot2On(false),
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m_tdmaStereo(false)
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{ }
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};
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Config m_config;
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Config m_running;
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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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int m_sampleCount;
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int m_squelchCount;
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int m_squelchGate;
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double m_squelchLevel;
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bool m_squelchOpen;
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Real m_lastArgument;
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MovingAverage<double> m_movingAverage;
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Real m_magsq;
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Real m_magsqSum;
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Real m_magsqPeak;
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int m_magsqCount;
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Real m_fmExcursion;
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SampleVector m_scopeSampleBuffer;
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AudioVector m_audioBuffer;
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uint m_audioBufferFill;
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qint16 *m_sampleBuffer; //!< samples ring buffer
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int m_sampleBufferIndex;
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AudioFifo m_audioFifo1;
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AudioFifo m_audioFifo2;
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BasebandSampleSink* m_scope;
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bool m_scopeEnabled;
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DSDDecoder m_dsdDecoder;
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DSDDemodGUI *m_dsdDemodGUI;
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QMutex m_settingsMutex;
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PhaseDiscriminators m_phaseDiscri;
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void apply();
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};
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#endif // INCLUDE_DSDDEMOD_H
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