mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-23 08:28:36 -05:00
294 lines
7.7 KiB
C++
294 lines
7.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2016 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// 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 //
|
|
// //
|
|
// 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_DSDDEMOD_H
|
|
#define INCLUDE_DSDDEMOD_H
|
|
|
|
#include <dsp/basebandsamplesink.h>
|
|
#include <dsp/phasediscri.h>
|
|
#include <QMutex>
|
|
#include <vector>
|
|
#include "dsp/nco.h"
|
|
#include "dsp/interpolator.h"
|
|
#include "dsp/lowpass.h"
|
|
#include "dsp/bandpass.h"
|
|
#include "dsp/afsquelch.h"
|
|
#include "dsp/movingaverage.h"
|
|
#include "dsp/afsquelch.h"
|
|
#include "audio/audiofifo.h"
|
|
#include "util/message.h"
|
|
|
|
#include "../../channelrx/demoddsd/dsddecoder.h"
|
|
|
|
class DSDDemodGUI;
|
|
|
|
class DSDDemod : public BasebandSampleSink {
|
|
public:
|
|
DSDDemod(BasebandSampleSink* sampleSink);
|
|
~DSDDemod();
|
|
|
|
void configure(MessageQueue* messageQueue,
|
|
int rfBandwidth,
|
|
int demodGain,
|
|
int volume,
|
|
int baudRate,
|
|
int fmDeviation,
|
|
int squelchGate,
|
|
Real squelch,
|
|
bool audioMute,
|
|
bool enableCosineFiltering,
|
|
bool syncOrConstellation,
|
|
bool slot1On,
|
|
bool slot2On,
|
|
bool tdmaStereo);
|
|
|
|
void configureMyPosition(MessageQueue* messageQueue, float myLatitude, float myLongitude);
|
|
|
|
virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
|
|
virtual void start();
|
|
virtual void stop();
|
|
virtual bool handleMessage(const Message& cmd);
|
|
|
|
void registerGUI(DSDDemodGUI *dsdDemodGUI) {
|
|
m_dsdDemodGUI = dsdDemodGUI;
|
|
}
|
|
|
|
double getMagSq() { return m_magsq; }
|
|
bool getSquelchOpen() const { return m_squelchOpen; }
|
|
|
|
const DSDDecoder& getDecoder() const { return m_dsdDecoder; }
|
|
|
|
void getMagSqLevels(Real& avg, Real& peak, int& nbSamples)
|
|
{
|
|
avg = m_magsqSum / m_magsqCount;
|
|
m_magsq = avg;
|
|
peak = m_magsqPeak;
|
|
nbSamples = m_magsqCount;
|
|
m_magsqSum = 0.0f;
|
|
m_magsqPeak = 0.0f;
|
|
m_magsqCount = 0;
|
|
}
|
|
|
|
private:
|
|
class MsgConfigureMyPosition : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
float getMyLatitude() const { return m_myLatitude; }
|
|
float getMyLongitude() const { return m_myLongitude; }
|
|
|
|
static MsgConfigureMyPosition* create(float myLatitude, float myLongitude)
|
|
{
|
|
return new MsgConfigureMyPosition(myLatitude, myLongitude);
|
|
}
|
|
|
|
private:
|
|
float m_myLatitude;
|
|
float m_myLongitude;
|
|
|
|
MsgConfigureMyPosition(float myLatitude, float myLongitude) :
|
|
m_myLatitude(myLatitude),
|
|
m_myLongitude(myLongitude)
|
|
{}
|
|
};
|
|
|
|
class MsgConfigureDSDDemod : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
int getRFBandwidth() const { return m_rfBandwidth; }
|
|
int getDemodGain() const { return m_demodGain; }
|
|
int getFMDeviation() const { return m_fmDeviation; }
|
|
int getVolume() const { return m_volume; }
|
|
int getBaudRate() const { return m_baudRate; }
|
|
int getSquelchGate() const { return m_squelchGate; }
|
|
Real getSquelch() const { return m_squelch; }
|
|
bool getAudioMute() const { return m_audioMute; }
|
|
bool getEnableCosineFiltering() const { return m_enableCosineFiltering; }
|
|
bool getSyncOrConstellation() const { return m_syncOrConstellation; }
|
|
bool getSlot1On() const { return m_slot1On; }
|
|
bool getSlot2On() const { return m_slot2On; }
|
|
bool getTDMAStereo() const { return m_tdmaStereo; }
|
|
|
|
static MsgConfigureDSDDemod* create(int rfBandwidth,
|
|
int demodGain,
|
|
int fmDeviation,
|
|
int volume,
|
|
int baudRate,
|
|
int squelchGate,
|
|
Real squelch,
|
|
bool audioMute,
|
|
bool enableCosineFiltering,
|
|
bool syncOrConstellation,
|
|
bool slot1On,
|
|
bool slot2On,
|
|
bool tdmaStereo)
|
|
{
|
|
return new MsgConfigureDSDDemod(rfBandwidth,
|
|
demodGain,
|
|
fmDeviation,
|
|
volume,
|
|
baudRate,
|
|
squelchGate,
|
|
squelch,
|
|
audioMute,
|
|
enableCosineFiltering,
|
|
syncOrConstellation,
|
|
slot1On,
|
|
slot2On,
|
|
tdmaStereo);
|
|
}
|
|
|
|
private:
|
|
Real m_rfBandwidth;
|
|
Real m_demodGain;
|
|
int m_fmDeviation;
|
|
int m_volume;
|
|
int m_baudRate;
|
|
int m_squelchGate;
|
|
Real m_squelch;
|
|
bool m_audioMute;
|
|
bool m_enableCosineFiltering;
|
|
bool m_syncOrConstellation;
|
|
bool m_slot1On;
|
|
bool m_slot2On;
|
|
bool m_tdmaStereo;
|
|
|
|
MsgConfigureDSDDemod(int rfBandwidth,
|
|
int demodGain,
|
|
int fmDeviation,
|
|
int volume,
|
|
int baudRate,
|
|
int squelchGate,
|
|
Real squelch,
|
|
bool audioMute,
|
|
bool enableCosineFiltering,
|
|
bool syncOrConstellation,
|
|
bool slot1On,
|
|
bool slot2On,
|
|
bool tdmaStereo) :
|
|
Message(),
|
|
m_rfBandwidth(rfBandwidth),
|
|
m_demodGain(demodGain),
|
|
m_fmDeviation(fmDeviation),
|
|
m_volume(volume),
|
|
m_baudRate(baudRate),
|
|
m_squelchGate(squelchGate),
|
|
m_squelch(squelch),
|
|
m_audioMute(audioMute),
|
|
m_enableCosineFiltering(enableCosineFiltering),
|
|
m_syncOrConstellation(syncOrConstellation),
|
|
m_slot1On(slot1On),
|
|
m_slot2On(slot2On),
|
|
m_tdmaStereo(tdmaStereo)
|
|
{ }
|
|
};
|
|
|
|
struct AudioSample {
|
|
qint16 l;
|
|
qint16 r;
|
|
};
|
|
typedef std::vector<AudioSample> AudioVector;
|
|
|
|
enum RateState {
|
|
RSInitialFill,
|
|
RSRunning
|
|
};
|
|
|
|
struct Config {
|
|
int m_inputSampleRate;
|
|
qint64 m_inputFrequencyOffset;
|
|
int m_rfBandwidth;
|
|
int m_demodGain;
|
|
int m_volume;
|
|
int m_baudRate;
|
|
int m_fmDeviation;
|
|
int m_squelchGate;
|
|
Real m_squelch;
|
|
bool m_audioMute;
|
|
quint32 m_audioSampleRate;
|
|
bool m_enableCosineFiltering;
|
|
bool m_syncOrConstellation;
|
|
bool m_slot1On;
|
|
bool m_slot2On;
|
|
bool m_tdmaStereo;
|
|
|
|
Config() :
|
|
m_inputSampleRate(-1),
|
|
m_inputFrequencyOffset(0),
|
|
m_rfBandwidth(-1),
|
|
m_demodGain(-1),
|
|
m_volume(-1),
|
|
m_baudRate(4800),
|
|
m_fmDeviation(1),
|
|
m_squelchGate(1),
|
|
m_squelch(0),
|
|
m_audioMute(false),
|
|
m_audioSampleRate(0),
|
|
m_enableCosineFiltering(false),
|
|
m_syncOrConstellation(false),
|
|
m_slot1On(false),
|
|
m_slot2On(false),
|
|
m_tdmaStereo(false)
|
|
{ }
|
|
};
|
|
|
|
Config m_config;
|
|
Config m_running;
|
|
|
|
NCO m_nco;
|
|
Interpolator m_interpolator;
|
|
Real m_interpolatorDistance;
|
|
Real m_interpolatorDistanceRemain;
|
|
int m_sampleCount;
|
|
int m_squelchCount;
|
|
int m_squelchGate;
|
|
|
|
double m_squelchLevel;
|
|
bool m_squelchOpen;
|
|
|
|
Real m_lastArgument;
|
|
MovingAverage<double> m_movingAverage;
|
|
Real m_magsq;
|
|
Real m_magsqSum;
|
|
Real m_magsqPeak;
|
|
int m_magsqCount;
|
|
|
|
Real m_fmExcursion;
|
|
|
|
SampleVector m_scopeSampleBuffer;
|
|
AudioVector m_audioBuffer;
|
|
uint m_audioBufferFill;
|
|
qint16 *m_sampleBuffer; //!< samples ring buffer
|
|
int m_sampleBufferIndex;
|
|
|
|
AudioFifo m_audioFifo1;
|
|
AudioFifo m_audioFifo2;
|
|
BasebandSampleSink* m_scope;
|
|
bool m_scopeEnabled;
|
|
|
|
DSDDecoder m_dsdDecoder;
|
|
DSDDemodGUI *m_dsdDemodGUI;
|
|
QMutex m_settingsMutex;
|
|
|
|
PhaseDiscriminators m_phaseDiscri;
|
|
|
|
void apply();
|
|
};
|
|
|
|
#endif // INCLUDE_DSDDEMOD_H
|