mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-09-12 16:16:35 -04:00
349 lines
11 KiB
C++
349 lines
11 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
|
|
// written by Christian Daniel //
|
|
// //
|
|
// 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_SSBDEMOD_H
|
|
#define INCLUDE_SSBDEMOD_H
|
|
|
|
#include <vector>
|
|
|
|
#include <QMutex>
|
|
#include <QNetworkRequest>
|
|
|
|
#include "dsp/basebandsamplesink.h"
|
|
#include "channel/channelapi.h"
|
|
#include "dsp/ncof.h"
|
|
#include "dsp/interpolator.h"
|
|
#include "dsp/fftfilt.h"
|
|
#include "dsp/agc.h"
|
|
#include "audio/audiofifo.h"
|
|
#include "util/message.h"
|
|
#include "util/doublebufferfifo.h"
|
|
|
|
#include "ssbdemodsettings.h"
|
|
|
|
#define ssbFftLen 1024
|
|
#define agcTarget 3276.8 // -10 dB amplitude => -20 dB power: center of normal signal
|
|
|
|
class QNetworkAccessManager;
|
|
class QNetworkReply;
|
|
class DeviceAPI;
|
|
class ThreadedBasebandSampleSink;
|
|
class DownChannelizer;
|
|
|
|
class SSBDemod : public BasebandSampleSink, public ChannelAPI {
|
|
Q_OBJECT
|
|
public:
|
|
class MsgConfigureSSBDemod : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
const SSBDemodSettings& getSettings() const { return m_settings; }
|
|
bool getForce() const { return m_force; }
|
|
|
|
static MsgConfigureSSBDemod* create(const SSBDemodSettings& settings, bool force)
|
|
{
|
|
return new MsgConfigureSSBDemod(settings, force);
|
|
}
|
|
|
|
private:
|
|
SSBDemodSettings m_settings;
|
|
bool m_force;
|
|
|
|
MsgConfigureSSBDemod(const SSBDemodSettings& settings, bool force) :
|
|
Message(),
|
|
m_settings(settings),
|
|
m_force(force)
|
|
{ }
|
|
};
|
|
|
|
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)
|
|
{ }
|
|
};
|
|
|
|
SSBDemod(DeviceAPI *deviceAPI);
|
|
virtual ~SSBDemod();
|
|
virtual void destroy() { delete this; }
|
|
void setSampleSink(BasebandSampleSink* sampleSink) { m_sampleSink = sampleSink; }
|
|
|
|
void configure(MessageQueue* messageQueue,
|
|
Real Bandwidth,
|
|
Real LowCutoff,
|
|
Real volume,
|
|
int spanLog2,
|
|
bool audioBinaural,
|
|
bool audioFlipChannels,
|
|
bool dsb,
|
|
bool audioMute,
|
|
bool agc,
|
|
bool agcClamping,
|
|
int agcTimeLog2,
|
|
int agcPowerThreshold,
|
|
int agcThresholdGate);
|
|
|
|
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);
|
|
|
|
virtual void getIdentifier(QString& id) { id = objectName(); }
|
|
virtual void getTitle(QString& title) { title = m_settings.m_title; }
|
|
virtual qint64 getCenterFrequency() const { return m_settings.m_inputFrequencyOffset; }
|
|
|
|
virtual QByteArray serialize() const;
|
|
virtual bool deserialize(const QByteArray& data);
|
|
|
|
virtual int getNbSinkStreams() const { return 1; }
|
|
virtual int getNbSourceStreams() const { return 0; }
|
|
|
|
virtual qint64 getStreamCenterFrequency(int streamIndex, bool sinkElseSource) const
|
|
{
|
|
(void) streamIndex;
|
|
(void) sinkElseSource;
|
|
return m_settings.m_inputFrequencyOffset;
|
|
}
|
|
|
|
uint32_t getAudioSampleRate() const { return m_audioSampleRate; }
|
|
uint32_t getInputSampleRate() const { return m_inputSampleRate; }
|
|
double getMagSq() const { return m_magsq; }
|
|
bool getAudioActive() const { return m_audioActive; }
|
|
|
|
void getMagSqLevels(double& avg, double& peak, int& nbSamples)
|
|
{
|
|
if (m_magsqCount > 0)
|
|
{
|
|
m_magsq = m_magsqSum / m_magsqCount;
|
|
m_magSqLevelStore.m_magsq = m_magsq;
|
|
m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
|
|
}
|
|
|
|
avg = m_magSqLevelStore.m_magsq;
|
|
peak = m_magSqLevelStore.m_magsqPeak;
|
|
nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
|
|
|
|
m_magsqSum = 0.0f;
|
|
m_magsqPeak = 0.0f;
|
|
m_magsqCount = 0;
|
|
}
|
|
|
|
virtual int webapiSettingsGet(
|
|
SWGSDRangel::SWGChannelSettings& response,
|
|
QString& errorMessage);
|
|
|
|
virtual int webapiSettingsPutPatch(
|
|
bool force,
|
|
const QStringList& channelSettingsKeys,
|
|
SWGSDRangel::SWGChannelSettings& response,
|
|
QString& errorMessage);
|
|
|
|
virtual int webapiReportGet(
|
|
SWGSDRangel::SWGChannelReport& response,
|
|
QString& errorMessage);
|
|
|
|
static const QString m_channelIdURI;
|
|
static const QString m_channelId;
|
|
|
|
private:
|
|
struct MagSqLevelsStore
|
|
{
|
|
MagSqLevelsStore() :
|
|
m_magsq(1e-12),
|
|
m_magsqPeak(1e-12)
|
|
{}
|
|
double m_magsq;
|
|
double m_magsqPeak;
|
|
};
|
|
|
|
class MsgConfigureSSBDemodPrivate : public Message {
|
|
MESSAGE_CLASS_DECLARATION
|
|
|
|
public:
|
|
Real getBandwidth() const { return m_Bandwidth; }
|
|
Real getLoCutoff() const { return m_LowCutoff; }
|
|
Real getVolume() const { return m_volume; }
|
|
int getSpanLog2() const { return m_spanLog2; }
|
|
bool getAudioBinaural() const { return m_audioBinaural; }
|
|
bool getAudioFlipChannels() const { return m_audioFlipChannels; }
|
|
bool getDSB() const { return m_dsb; }
|
|
bool getAudioMute() const { return m_audioMute; }
|
|
bool getAGC() const { return m_agc; }
|
|
bool getAGCClamping() const { return m_agcClamping; }
|
|
int getAGCTimeLog2() const { return m_agcTimeLog2; }
|
|
int getAGCPowerThershold() const { return m_agcPowerThreshold; }
|
|
int getAGCThersholdGate() const { return m_agcThresholdGate; }
|
|
|
|
static MsgConfigureSSBDemodPrivate* create(Real Bandwidth,
|
|
Real LowCutoff,
|
|
Real volume,
|
|
int spanLog2,
|
|
bool audioBinaural,
|
|
bool audioFlipChannels,
|
|
bool dsb,
|
|
bool audioMute,
|
|
bool agc,
|
|
bool agcClamping,
|
|
int agcTimeLog2,
|
|
int agcPowerThreshold,
|
|
int agcThresholdGate)
|
|
{
|
|
return new MsgConfigureSSBDemodPrivate(
|
|
Bandwidth,
|
|
LowCutoff,
|
|
volume,
|
|
spanLog2,
|
|
audioBinaural,
|
|
audioFlipChannels,
|
|
dsb,
|
|
audioMute,
|
|
agc,
|
|
agcClamping,
|
|
agcTimeLog2,
|
|
agcPowerThreshold,
|
|
agcThresholdGate);
|
|
}
|
|
|
|
private:
|
|
Real m_Bandwidth;
|
|
Real m_LowCutoff;
|
|
Real m_volume;
|
|
int m_spanLog2;
|
|
bool m_audioBinaural;
|
|
bool m_audioFlipChannels;
|
|
bool m_dsb;
|
|
bool m_audioMute;
|
|
bool m_agc;
|
|
bool m_agcClamping;
|
|
int m_agcTimeLog2;
|
|
int m_agcPowerThreshold;
|
|
int m_agcThresholdGate;
|
|
|
|
MsgConfigureSSBDemodPrivate(Real Bandwidth,
|
|
Real LowCutoff,
|
|
Real volume,
|
|
int spanLog2,
|
|
bool audioBinaural,
|
|
bool audioFlipChannels,
|
|
bool dsb,
|
|
bool audioMute,
|
|
bool agc,
|
|
bool agcClamping,
|
|
int agcTimeLog2,
|
|
int agcPowerThreshold,
|
|
int agcThresholdGate) :
|
|
Message(),
|
|
m_Bandwidth(Bandwidth),
|
|
m_LowCutoff(LowCutoff),
|
|
m_volume(volume),
|
|
m_spanLog2(spanLog2),
|
|
m_audioBinaural(audioBinaural),
|
|
m_audioFlipChannels(audioFlipChannels),
|
|
m_dsb(dsb),
|
|
m_audioMute(audioMute),
|
|
m_agc(agc),
|
|
m_agcClamping(agcClamping),
|
|
m_agcTimeLog2(agcTimeLog2),
|
|
m_agcPowerThreshold(agcPowerThreshold),
|
|
m_agcThresholdGate(agcThresholdGate)
|
|
{ }
|
|
};
|
|
|
|
DeviceAPI *m_deviceAPI;
|
|
ThreadedBasebandSampleSink* m_threadedChannelizer;
|
|
DownChannelizer* m_channelizer;
|
|
SSBDemodSettings m_settings;
|
|
|
|
Real m_Bandwidth;
|
|
Real m_LowCutoff;
|
|
Real m_volume;
|
|
int m_spanLog2;
|
|
fftfilt::cmplx m_sum;
|
|
int m_undersampleCount;
|
|
int m_inputSampleRate;
|
|
int m_inputFrequencyOffset;
|
|
bool m_audioBinaual;
|
|
bool m_audioFlipChannels;
|
|
bool m_usb;
|
|
bool m_dsb;
|
|
bool m_audioMute;
|
|
double m_magsq;
|
|
double m_magsqSum;
|
|
double m_magsqPeak;
|
|
int m_magsqCount;
|
|
MagSqLevelsStore m_magSqLevelStore;
|
|
MagAGC m_agc;
|
|
bool m_agcActive;
|
|
bool m_agcClamping;
|
|
int m_agcNbSamples; //!< number of audio (48 kHz) samples for AGC averaging
|
|
double m_agcPowerThreshold; //!< AGC power threshold (linear)
|
|
int m_agcThresholdGate; //!< Gate length in number of samples befor threshold triggers
|
|
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;
|
|
fftfilt* SSBFilter;
|
|
fftfilt* DSBFilter;
|
|
|
|
BasebandSampleSink* m_sampleSink;
|
|
SampleVector m_sampleBuffer;
|
|
|
|
AudioVector m_audioBuffer;
|
|
uint m_audioBufferFill;
|
|
AudioFifo m_audioFifo;
|
|
quint32 m_audioSampleRate;
|
|
|
|
QNetworkAccessManager *m_networkManager;
|
|
QNetworkRequest m_networkRequest;
|
|
|
|
QMutex m_settingsMutex;
|
|
|
|
void applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force = false);
|
|
void applySettings(const SSBDemodSettings& settings, bool force = false);
|
|
void applyAudioSampleRate(int sampleRate);
|
|
void webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const SSBDemodSettings& settings);
|
|
void webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response);
|
|
void webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const SSBDemodSettings& settings, bool force);
|
|
|
|
void processOneSample(Complex &ci);
|
|
|
|
private slots:
|
|
void networkManagerFinished(QNetworkReply *reply);
|
|
};
|
|
|
|
#endif // INCLUDE_SSBDEMOD_H
|