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ChannelAnalyzerNG: decouple demod and GUI

This commit is contained in:
f4exb 2017-09-29 18:36:33 +02:00
parent 54bd4b38f0
commit 4d07272503
4 changed files with 864 additions and 736 deletions

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@ -16,17 +16,23 @@
#include "chanalyzerng.h"
#include <dsp/downchannelizer.h>
#include <QTime>
#include <QDebug>
#include <stdio.h>
#include "device/devicesourceapi.h"
#include "audio/audiooutput.h"
#include "dsp/threadedbasebandsamplesink.h"
#include "dsp/downchannelizer.h"
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelAnalyzer, Message)
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgConfigureChannelizer, Message)
MESSAGE_CLASS_DEFINITION(ChannelAnalyzerNG::MsgReportChannelSampleRateChanged, Message)
ChannelAnalyzerNG::ChannelAnalyzerNG(BasebandSampleSink* sampleSink) :
m_sampleSink(sampleSink),
ChannelAnalyzerNG::ChannelAnalyzerNG(DeviceSourceAPI *deviceAPI) :
m_deviceAPI(deviceAPI),
m_sampleSink(0),
m_settingsMutex(QMutex::Recursive)
{
m_undersampleCount = 0;
@ -38,6 +44,12 @@ ChannelAnalyzerNG::ChannelAnalyzerNG(BasebandSampleSink* sampleSink) :
m_interpolatorDistanceRemain = 0.0f;
SSBFilter = new fftfilt(m_config.m_LowCutoff / m_config.m_inputSampleRate, m_config.m_Bandwidth / m_config.m_inputSampleRate, ssbFftLen);
DSBFilter = new fftfilt(m_config.m_Bandwidth / m_config.m_inputSampleRate, 2*ssbFftLen);
m_channelizer = new DownChannelizer(this);
m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
connect(m_channelizer, SIGNAL(inputSampleRateChanged()), this, SLOT(channelizerInputSampleRateChanged()));
m_deviceAPI->addThreadedSink(m_threadedChannelizer);
apply(true);
}
@ -45,6 +57,9 @@ ChannelAnalyzerNG::~ChannelAnalyzerNG()
{
if (SSBFilter) delete SSBFilter;
if (DSBFilter) delete DSBFilter;
m_deviceAPI->removeThreadedSink(m_threadedChannelizer);
delete m_threadedChannelizer;
delete m_channelizer;
}
void ChannelAnalyzerNG::configure(MessageQueue* messageQueue,
@ -54,7 +69,7 @@ void ChannelAnalyzerNG::configure(MessageQueue* messageQueue,
int spanLog2,
bool ssb)
{
Message* cmd = MsgConfigureChannelAnalyzer::create(channelSampleRate, Bandwidth, LowCutoff, spanLog2, ssb);
Message* cmd = MsgConfigureChannelAnalyzer::create(channelSampleRate, Bandwidth, LowCutoff, spanLog2, ssb);
messageQueue->push(cmd);
}
@ -102,6 +117,12 @@ void ChannelAnalyzerNG::stop()
{
}
void ChannelAnalyzerNG::channelizerInputSampleRateChanged()
{
MsgReportChannelSampleRateChanged *msg = MsgReportChannelSampleRateChanged::create();
getMessageQueueToGUI()->push(msg);
}
bool ChannelAnalyzerNG::handleMessage(const Message& cmd)
{
qDebug() << "ChannelAnalyzerNG::handleMessage: " << cmd.getIdentifier();
@ -120,11 +141,19 @@ bool ChannelAnalyzerNG::handleMessage(const Message& cmd)
apply();
return true;
}
else if (MsgConfigureChannelizer::match(cmd))
{
MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
m_channelizer->configure(m_channelizer->getInputMessageQueue(),
cfg.getSampleRate(),
cfg.getCenterFrequency());
return true;
}
else if (MsgConfigureChannelAnalyzer::match(cmd))
{
MsgConfigureChannelAnalyzer& cfg = (MsgConfigureChannelAnalyzer&) cmd;
m_config.m_channelSampleRate = cfg.getChannelSampleRate();
m_config.m_channelSampleRate = cfg.getChannelSampleRate();
m_config.m_Bandwidth = cfg.getBandwidth();
m_config.m_LowCutoff = cfg.getLoCutoff();
m_config.m_spanLog2 = cfg.getSpanLog2();
@ -153,6 +182,8 @@ bool ChannelAnalyzerNG::handleMessage(const Message& cmd)
}
}
void ChannelAnalyzerNG::apply(bool force)
{
if ((m_running.m_frequency != m_config.m_frequency) ||

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@ -1,183 +1,242 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 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 INCLUDE_CHANALYZERNG_H
#define INCLUDE_CHANALYZERNG_H
#include <dsp/basebandsamplesink.h>
#include <QMutex>
#include <vector>
#include "dsp/interpolator.h"
#include "dsp/ncof.h"
#include "dsp/fftfilt.h"
#include "audio/audiofifo.h"
#include "util/message.h"
#define ssbFftLen 1024
class ChannelAnalyzerNG : public BasebandSampleSink {
public:
ChannelAnalyzerNG(BasebandSampleSink* m_sampleSink);
virtual ~ChannelAnalyzerNG();
void configure(MessageQueue* messageQueue,
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb);
int getInputSampleRate() const { return m_running.m_inputSampleRate; }
int getChannelSampleRate() const { return m_running.m_channelSampleRate; }
double getMagSq() const { return m_magsq; }
virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
virtual void start();
virtual void stop();
virtual bool handleMessage(const Message& cmd);
private:
class MsgConfigureChannelAnalyzer : public Message {
MESSAGE_CLASS_DECLARATION
public:
int getChannelSampleRate() const { return m_channelSampleRate; }
Real getBandwidth() const { return m_Bandwidth; }
Real getLoCutoff() const { return m_LowCutoff; }
int getSpanLog2() const { return m_spanLog2; }
bool getSSB() const { return m_ssb; }
static MsgConfigureChannelAnalyzer* create(
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb)
{
return new MsgConfigureChannelAnalyzer(channelSampleRate, Bandwidth, LowCutoff, spanLog2, ssb);
}
private:
int m_channelSampleRate;
Real m_Bandwidth;
Real m_LowCutoff;
int m_spanLog2;
bool m_ssb;
MsgConfigureChannelAnalyzer(
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb) :
Message(),
m_channelSampleRate(channelSampleRate),
m_Bandwidth(Bandwidth),
m_LowCutoff(LowCutoff),
m_spanLog2(spanLog2),
m_ssb(ssb)
{ }
};
struct Config
{
int m_frequency;
int m_inputSampleRate;
int m_channelSampleRate;
Real m_Bandwidth;
Real m_LowCutoff;
int m_spanLog2;
bool m_ssb;
Config() :
m_frequency(0),
m_inputSampleRate(96000),
m_channelSampleRate(96000),
m_Bandwidth(5000),
m_LowCutoff(300),
m_spanLog2(3),
m_ssb(false)
{}
};
Config m_config;
Config m_running;
int m_undersampleCount;
fftfilt::cmplx m_sum;
bool m_usb;
double m_magsq;
bool m_useInterpolator;
NCOF m_nco;
Interpolator m_interpolator;
Real m_interpolatorDistance;
Real m_interpolatorDistanceRemain;
fftfilt* SSBFilter;
fftfilt* DSBFilter;
BasebandSampleSink* m_sampleSink;
SampleVector m_sampleBuffer;
QMutex m_settingsMutex;
void apply(bool force = false);
void processOneSample(Complex& c, fftfilt::cmplx *sideband)
{
int n_out;
int decim = 1<<m_running.m_spanLog2;
if (m_running.m_ssb)
{
n_out = SSBFilter->runSSB(c, &sideband, m_usb);
}
else
{
n_out = DSBFilter->runDSB(c, &sideband);
}
for (int i = 0; i < n_out; i++)
{
// Downsample by 2^(m_scaleLog2 - 1) for SSB band spectrum display
// smart decimation with bit gain using float arithmetic (23 bits significand)
m_sum += sideband[i];
if (!(m_undersampleCount++ & (decim - 1))) // counter LSB bit mask for decimation by 2^(m_scaleLog2 - 1)
{
m_sum /= decim;
m_magsq = (m_sum.real() * m_sum.real() + m_sum.imag() * m_sum.imag())/ (1<<30);
if (m_running.m_ssb & !m_usb)
{ // invert spectrum for LSB
//m_sampleBuffer.push_back(Sample(m_sum.imag() * 32768.0, m_sum.real() * 32768.0));
m_sampleBuffer.push_back(Sample(m_sum.imag(), m_sum.real()));
}
else
{
//m_sampleBuffer.push_back(Sample(m_sum.real() * 32768.0, m_sum.imag() * 32768.0));
m_sampleBuffer.push_back(Sample(m_sum.real(), m_sum.imag()));
}
m_sum = 0;
}
}
}
};
#endif // INCLUDE_CHANALYZERNG_H
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 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 INCLUDE_CHANALYZERNG_H
#define INCLUDE_CHANALYZERNG_H
#include <dsp/basebandsamplesink.h>
#include <QMutex>
#include <vector>
#include "dsp/interpolator.h"
#include "dsp/ncof.h"
#include "dsp/fftfilt.h"
#include "audio/audiofifo.h"
#include "util/message.h"
#define ssbFftLen 1024
class DeviceSourceAPI;
class ThreadedBasebandSampleSink;
class DownChannelizer;
class ChannelAnalyzerNG : public BasebandSampleSink {
public:
class MsgConfigureChannelAnalyzer : public Message {
MESSAGE_CLASS_DECLARATION
public:
int getChannelSampleRate() const { return m_channelSampleRate; }
Real getBandwidth() const { return m_Bandwidth; }
Real getLoCutoff() const { return m_LowCutoff; }
int getSpanLog2() const { return m_spanLog2; }
bool getSSB() const { return m_ssb; }
static MsgConfigureChannelAnalyzer* create(
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb)
{
return new MsgConfigureChannelAnalyzer(
channelSampleRate,
Bandwidth,
LowCutoff,
spanLog2,
ssb);
}
private:
int m_channelSampleRate;
Real m_Bandwidth;
Real m_LowCutoff;
int m_spanLog2;
bool m_ssb;
MsgConfigureChannelAnalyzer(
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb) :
Message(),
m_channelSampleRate(channelSampleRate),
m_Bandwidth(Bandwidth),
m_LowCutoff(LowCutoff),
m_spanLog2(spanLog2),
m_ssb(ssb)
{ }
};
class MsgConfigureChannelizer : public Message {
MESSAGE_CLASS_DECLARATION
public:
int getSampleRate() const { return m_sampleRate; }
int getCenterFrequency() const { return m_centerFrequency; }
static MsgConfigureChannelizer* create(int sampleRate, int centerFrequency)
{
return new MsgConfigureChannelizer(sampleRate, centerFrequency);
}
private:
int m_sampleRate;
int m_centerFrequency;
MsgConfigureChannelizer(int sampleRate, int centerFrequency) :
Message(),
m_sampleRate(sampleRate),
m_centerFrequency(centerFrequency)
{ }
};
class MsgReportChannelSampleRateChanged : public Message {
MESSAGE_CLASS_DECLARATION
public:
static MsgReportChannelSampleRateChanged* create()
{
return new MsgReportChannelSampleRateChanged();
}
private:
MsgReportChannelSampleRateChanged() :
Message()
{ }
};
ChannelAnalyzerNG(DeviceSourceAPI *deviceAPI);
virtual ~ChannelAnalyzerNG();
void setSampleSink(BasebandSampleSink* sampleSink) { m_sampleSink = sampleSink; }
void configure(MessageQueue* messageQueue,
int channelSampleRate,
Real Bandwidth,
Real LowCutoff,
int spanLog2,
bool ssb);
DownChannelizer *getChannelizer() { return m_channelizer; }
int getInputSampleRate() const { return m_running.m_inputSampleRate; }
int getChannelSampleRate() const { return m_running.m_channelSampleRate; }
double getMagSq() const { return m_magsq; }
virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
virtual void start();
virtual void stop();
virtual bool handleMessage(const Message& cmd);
private slots:
void channelizerInputSampleRateChanged();
private:
struct Config
{
int m_frequency;
int m_inputSampleRate;
int m_channelSampleRate;
Real m_Bandwidth;
Real m_LowCutoff;
int m_spanLog2;
bool m_ssb;
Config() :
m_frequency(0),
m_inputSampleRate(96000),
m_channelSampleRate(96000),
m_Bandwidth(5000),
m_LowCutoff(300),
m_spanLog2(3),
m_ssb(false)
{}
};
Config m_config;
Config m_running;
DeviceSourceAPI *m_deviceAPI;
ThreadedBasebandSampleSink* m_threadedChannelizer;
DownChannelizer* m_channelizer;
int m_undersampleCount;
fftfilt::cmplx m_sum;
bool m_usb;
double m_magsq;
bool m_useInterpolator;
NCOF m_nco;
Interpolator m_interpolator;
Real m_interpolatorDistance;
Real m_interpolatorDistanceRemain;
fftfilt* SSBFilter;
fftfilt* DSBFilter;
BasebandSampleSink* m_sampleSink;
SampleVector m_sampleBuffer;
QMutex m_settingsMutex;
void apply(bool force = false);
void processOneSample(Complex& c, fftfilt::cmplx *sideband)
{
int n_out;
int decim = 1<<m_running.m_spanLog2;
if (m_running.m_ssb)
{
n_out = SSBFilter->runSSB(c, &sideband, m_usb);
}
else
{
n_out = DSBFilter->runDSB(c, &sideband);
}
for (int i = 0; i < n_out; i++)
{
// Downsample by 2^(m_scaleLog2 - 1) for SSB band spectrum display
// smart decimation with bit gain using float arithmetic (23 bits significand)
m_sum += sideband[i];
if (!(m_undersampleCount++ & (decim - 1))) // counter LSB bit mask for decimation by 2^(m_scaleLog2 - 1)
{
m_sum /= decim;
m_magsq = (m_sum.real() * m_sum.real() + m_sum.imag() * m_sum.imag())/ (1<<30);
if (m_running.m_ssb & !m_usb)
{ // invert spectrum for LSB
//m_sampleBuffer.push_back(Sample(m_sum.imag() * 32768.0, m_sum.real() * 32768.0));
m_sampleBuffer.push_back(Sample(m_sum.imag(), m_sum.real()));
}
else
{
//m_sampleBuffer.push_back(Sample(m_sum.real() * 32768.0, m_sum.imag() * 32768.0));
m_sampleBuffer.push_back(Sample(m_sum.real(), m_sum.imag()));
}
m_sum = 0;
}
}
}
};
#endif // INCLUDE_CHANALYZERNG_H

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@ -59,7 +59,7 @@ public:
private slots:
void viewChanged();
void channelizerInputSampleRateChanged();
// void channelizerInputSampleRateChanged();
void on_deltaFrequency_changed(qint64 value);
void on_channelSampleRate_changed(quint64 value);
void on_useRationalDownsampler_toggled(bool checked);
@ -69,6 +69,7 @@ private slots:
void on_ssb_toggled(bool checked);
void onWidgetRolled(QWidget* widget, bool rollDown);
void onMenuDoubleClicked();
void handleInputMessages();
void tick();
private:
@ -82,8 +83,8 @@ private:
int m_spanLog2;
MovingAverage<double> m_channelPowerDbAvg;
ThreadedBasebandSampleSink* m_threadedChannelizer;
DownChannelizer* m_channelizer;
// ThreadedBasebandSampleSink* m_threadedChannelizer;
// DownChannelizer* m_channelizer;
ChannelAnalyzerNG* m_channelAnalyzer;
SpectrumScopeNGComboVis* m_spectrumScopeComboVis;
SpectrumVis* m_spectrumVis;