mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-30 03:38:55 -05:00
373 lines
11 KiB
C++
373 lines
11 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2016 Edouard Griffiths, F4EXB //
|
|
// //
|
|
// 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 PLUGINS_CHANNELTX_MODNFM_NFMMOD_H_
|
|
#define PLUGINS_CHANNELTX_MODNFM_NFMMOD_H_
|
|
|
|
#include <QMutex>
|
|
#include <vector>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
|
|
#include "dsp/basebandsamplesource.h"
|
|
#include "dsp/nco.h"
|
|
#include "dsp/ncof.h"
|
|
#include "dsp/interpolator.h"
|
|
#include "dsp/lowpass.h"
|
|
#include "dsp/bandpass.h"
|
|
#include "dsp/movingaverage.h"
|
|
#include "dsp/agc.h"
|
|
#include "dsp/cwkeyer.h"
|
|
#include "audio/audiofifo.h"
|
|
#include "util/message.h"
|
|
|
|
class NFMMod : public BasebandSampleSource {
|
|
Q_OBJECT
|
|
|
|
public:
|
|
typedef enum
|
|
{
|
|
NFMModInputNone,
|
|
NFMModInputTone,
|
|
NFMModInputFile,
|
|
NFMModInputAudio,
|
|
NFMModInputCWTone
|
|
} NFMModInputAF;
|
|
|
|
class MsgConfigureFileSourceName : public Message
|
|
{
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
const QString& getFileName() const { return m_fileName; }
|
|
|
|
static MsgConfigureFileSourceName* create(const QString& fileName)
|
|
{
|
|
return new MsgConfigureFileSourceName(fileName);
|
|
}
|
|
|
|
private:
|
|
QString m_fileName;
|
|
|
|
MsgConfigureFileSourceName(const QString& fileName) :
|
|
Message(),
|
|
m_fileName(fileName)
|
|
{ }
|
|
};
|
|
|
|
class MsgConfigureFileSourceSeek : public Message
|
|
{
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
int getPercentage() const { return m_seekPercentage; }
|
|
|
|
static MsgConfigureFileSourceSeek* create(int seekPercentage)
|
|
{
|
|
return new MsgConfigureFileSourceSeek(seekPercentage);
|
|
}
|
|
|
|
protected:
|
|
int m_seekPercentage; //!< percentage of seek position from the beginning 0..100
|
|
|
|
MsgConfigureFileSourceSeek(int seekPercentage) :
|
|
Message(),
|
|
m_seekPercentage(seekPercentage)
|
|
{ }
|
|
};
|
|
|
|
class MsgConfigureFileSourceStreamTiming : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
|
|
static MsgConfigureFileSourceStreamTiming* create()
|
|
{
|
|
return new MsgConfigureFileSourceStreamTiming();
|
|
}
|
|
|
|
private:
|
|
|
|
MsgConfigureFileSourceStreamTiming() :
|
|
Message()
|
|
{ }
|
|
};
|
|
|
|
class MsgConfigureAFInput : public Message
|
|
{
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
NFMModInputAF getAFInput() const { return m_afInput; }
|
|
|
|
static MsgConfigureAFInput* create(NFMModInputAF afInput)
|
|
{
|
|
return new MsgConfigureAFInput(afInput);
|
|
}
|
|
|
|
private:
|
|
NFMModInputAF m_afInput;
|
|
|
|
MsgConfigureAFInput(NFMModInputAF afInput) :
|
|
Message(),
|
|
m_afInput(afInput)
|
|
{ }
|
|
};
|
|
|
|
class MsgReportFileSourceStreamTiming : public Message
|
|
{
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
std::size_t getSamplesCount() const { return m_samplesCount; }
|
|
|
|
static MsgReportFileSourceStreamTiming* create(std::size_t samplesCount)
|
|
{
|
|
return new MsgReportFileSourceStreamTiming(samplesCount);
|
|
}
|
|
|
|
protected:
|
|
std::size_t m_samplesCount;
|
|
|
|
MsgReportFileSourceStreamTiming(std::size_t samplesCount) :
|
|
Message(),
|
|
m_samplesCount(samplesCount)
|
|
{ }
|
|
};
|
|
|
|
class MsgReportFileSourceStreamData : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
int getSampleRate() const { return m_sampleRate; }
|
|
quint32 getRecordLength() const { return m_recordLength; }
|
|
|
|
static MsgReportFileSourceStreamData* create(int sampleRate,
|
|
quint32 recordLength)
|
|
{
|
|
return new MsgReportFileSourceStreamData(sampleRate, recordLength);
|
|
}
|
|
|
|
protected:
|
|
int m_sampleRate;
|
|
quint32 m_recordLength;
|
|
|
|
MsgReportFileSourceStreamData(int sampleRate,
|
|
quint32 recordLength) :
|
|
Message(),
|
|
m_sampleRate(sampleRate),
|
|
m_recordLength(recordLength)
|
|
{ }
|
|
};
|
|
|
|
//=================================================================
|
|
|
|
NFMMod();
|
|
~NFMMod();
|
|
|
|
void configure(MessageQueue* messageQueue,
|
|
Real rfBandwidth,
|
|
Real afBandwidth,
|
|
float fmDeviation,
|
|
float toneFrequency,
|
|
float volumeFactor,
|
|
bool channelMute,
|
|
bool playLoop,
|
|
bool ctcssOn,
|
|
float ctcssFrequency);
|
|
|
|
virtual void pull(Sample& sample);
|
|
virtual void pullAudio(int nbSamples);
|
|
virtual void start();
|
|
virtual void stop();
|
|
virtual bool handleMessage(const Message& cmd);
|
|
|
|
double getMagSq() const { return m_magsq; }
|
|
|
|
CWKeyer *getCWKeyer() { return &m_cwKeyer; }
|
|
|
|
signals:
|
|
/**
|
|
* Level changed
|
|
* \param rmsLevel RMS level in range 0.0 - 1.0
|
|
* \param peakLevel Peak level in range 0.0 - 1.0
|
|
* \param numSamples Number of audio samples analyzed
|
|
*/
|
|
void levelChanged(qreal rmsLevel, qreal peakLevel, int numSamples);
|
|
|
|
|
|
private:
|
|
class MsgConfigureNFMMod : public Message
|
|
{
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
Real getRFBandwidth() const { return m_rfBandwidth; }
|
|
Real getAFBandwidth() const { return m_afBandwidth; }
|
|
float getFMDeviation() const { return m_fmDeviation; }
|
|
float getToneFrequency() const { return m_toneFrequency; }
|
|
float getVolumeFactor() const { return m_volumeFactor; }
|
|
bool getChannelMute() const { return m_channelMute; }
|
|
bool getPlayLoop() const { return m_playLoop; }
|
|
bool getCTCSSOn() const { return m_ctcssOn; }
|
|
float getCTCSSFrequency() const { return m_ctcssFrequency; }
|
|
|
|
static MsgConfigureNFMMod* create(Real rfBandwidth,
|
|
Real afBandwidth,
|
|
float fmDeviation,
|
|
float toneFrequency,
|
|
float volumeFactor,
|
|
bool channelMute,
|
|
bool playLoop,
|
|
bool ctcssOn,
|
|
float ctcssFrequency)
|
|
{
|
|
return new MsgConfigureNFMMod(rfBandwidth,
|
|
afBandwidth,
|
|
fmDeviation,
|
|
toneFrequency,
|
|
volumeFactor,
|
|
channelMute,
|
|
playLoop,
|
|
ctcssOn,
|
|
ctcssFrequency);
|
|
}
|
|
|
|
private:
|
|
Real m_rfBandwidth;
|
|
Real m_afBandwidth;
|
|
float m_fmDeviation;
|
|
float m_toneFrequency;
|
|
float m_volumeFactor;
|
|
bool m_channelMute;
|
|
bool m_playLoop;
|
|
bool m_ctcssOn;
|
|
float m_ctcssFrequency;
|
|
|
|
MsgConfigureNFMMod(Real rfBandwidth,
|
|
Real afBandwidth,
|
|
float fmDeviation,
|
|
float toneFrequency,
|
|
float volumeFactor,
|
|
bool channelMute,
|
|
bool playLoop,
|
|
bool ctcssOn,
|
|
float ctcssFrequency) :
|
|
Message(),
|
|
m_rfBandwidth(rfBandwidth),
|
|
m_afBandwidth(afBandwidth),
|
|
m_fmDeviation(fmDeviation),
|
|
m_toneFrequency(toneFrequency),
|
|
m_volumeFactor(volumeFactor),
|
|
m_channelMute(channelMute),
|
|
m_playLoop(playLoop),
|
|
m_ctcssOn(ctcssOn),
|
|
m_ctcssFrequency(ctcssFrequency)
|
|
{ }
|
|
};
|
|
|
|
//=================================================================
|
|
|
|
enum RateState {
|
|
RSInitialFill,
|
|
RSRunning
|
|
};
|
|
|
|
struct Config {
|
|
int m_basebandSampleRate;
|
|
int m_outputSampleRate;
|
|
qint64 m_inputFrequencyOffset;
|
|
Real m_rfBandwidth;
|
|
Real m_afBandwidth;
|
|
float m_fmDeviation;
|
|
float m_toneFrequency;
|
|
float m_volumeFactor;
|
|
quint32 m_audioSampleRate;
|
|
bool m_channelMute;
|
|
bool m_playLoop;
|
|
bool m_ctcssOn;
|
|
float m_ctcssFrequency;
|
|
|
|
Config() :
|
|
m_basebandSampleRate(0),
|
|
m_outputSampleRate(-1),
|
|
m_inputFrequencyOffset(0),
|
|
m_rfBandwidth(-1),
|
|
m_afBandwidth(-1),
|
|
m_fmDeviation(5000.0f),
|
|
m_toneFrequency(1000.0f),
|
|
m_volumeFactor(1.0f),
|
|
m_audioSampleRate(0),
|
|
m_channelMute(false),
|
|
m_playLoop(false),
|
|
m_ctcssOn(false),
|
|
m_ctcssFrequency(88.5)
|
|
{ }
|
|
};
|
|
|
|
//=================================================================
|
|
|
|
Config m_config;
|
|
Config m_running;
|
|
|
|
NCO m_carrierNco;
|
|
NCOF m_toneNco;
|
|
NCOF m_ctcssNco;
|
|
float m_modPhasor; //!< baseband modulator phasor
|
|
Complex m_modSample;
|
|
Interpolator m_interpolator;
|
|
Real m_interpolatorDistance;
|
|
Real m_interpolatorDistanceRemain;
|
|
bool m_interpolatorConsumed;
|
|
Lowpass<Real> m_lowpass;
|
|
Bandpass<Real> m_bandpass;
|
|
|
|
double m_magsq;
|
|
MovingAverage<double> m_movingAverage;
|
|
SimpleAGC m_volumeAGC;
|
|
|
|
AudioVector m_audioBuffer;
|
|
uint m_audioBufferFill;
|
|
|
|
AudioFifo m_audioFifo;
|
|
SampleVector m_sampleBuffer;
|
|
QMutex m_settingsMutex;
|
|
|
|
std::ifstream m_ifstream;
|
|
QString m_fileName;
|
|
quint64 m_fileSize; //!< raw file size (bytes)
|
|
quint32 m_recordLength; //!< record length in seconds computed from file size
|
|
int m_sampleRate;
|
|
|
|
NFMModInputAF m_afInput;
|
|
quint32 m_levelCalcCount;
|
|
Real m_peakLevel;
|
|
Real m_levelSum;
|
|
CWKeyer m_cwKeyer;
|
|
CWSmoother m_cwSmoother;
|
|
static const int m_levelNbSamples;
|
|
|
|
void apply();
|
|
void pullAF(Real& sample);
|
|
void calculateLevel(Real& sample);
|
|
void modulateSample();
|
|
void openFileStream();
|
|
void seekFileStream(int seekPercentage);
|
|
};
|
|
|
|
|
|
#endif /* PLUGINS_CHANNELTX_MODNFM_NFMMOD_H_ */
|