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sdrangel/plugins/channeltx/udpsource/udpsource.h
2019-05-09 17:27:12 +02:00

343 lines
10 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// 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 //
// (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 PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_
#define PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_
#include <QObject>
#include <QNetworkRequest>
#include "dsp/basebandsamplesource.h"
#include "channel/channelapi.h"
#include "dsp/basebandsamplesink.h"
#include "dsp/interpolator.h"
#include "dsp/movingaverage.h"
#include "dsp/nco.h"
#include "dsp/fftfilt.h"
#include "util/message.h"
#include "udpsourcesettings.h"
#include "udpsourceudphandler.h"
class QNetworkAccessManager;
class QNetworkReply;
class DeviceAPI;
class ThreadedBasebandSampleSource;
class UpChannelizer;
class UDPSource : public BasebandSampleSource, public ChannelAPI {
Q_OBJECT
public:
class MsgConfigureUDPSource : public Message {
MESSAGE_CLASS_DECLARATION
public:
const UDPSourceSettings& getSettings() const { return m_settings; }
bool getForce() const { return m_force; }
static MsgConfigureUDPSource* create(const UDPSourceSettings& settings, bool force)
{
return new MsgConfigureUDPSource(settings, force);
}
private:
UDPSourceSettings m_settings;
bool m_force;
MsgConfigureUDPSource(const UDPSourceSettings& 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)
{ }
};
UDPSource(DeviceAPI *deviceAPI);
virtual ~UDPSource();
virtual void destroy() { delete this; }
void setSpectrumSink(BasebandSampleSink* spectrum) { m_spectrum = spectrum; }
virtual void start();
virtual void stop();
virtual void pull(Sample& sample);
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;
}
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);
double getMagSq() const { return m_magsq; }
double getInMagSq() const { return m_inMagsq; }
int32_t getBufferGauge() const { return m_udpHandler.getBufferGauge(); }
bool getSquelchOpen() const { return m_squelchOpen; }
void setSpectrum(bool enabled);
void resetReadIndex();
static const QString m_channelIdURI;
static const QString m_channelId;
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 slots:
void networkManagerFinished(QNetworkReply *reply);
private:
class MsgUDPSourceSpectrum : public Message {
MESSAGE_CLASS_DECLARATION
public:
bool getEnabled() const { return m_enabled; }
static MsgUDPSourceSpectrum* create(bool enabled)
{
return new MsgUDPSourceSpectrum(enabled);
}
private:
bool m_enabled;
MsgUDPSourceSpectrum(bool enabled) :
Message(),
m_enabled(enabled)
{ }
};
class MsgResetReadIndex : public Message {
MESSAGE_CLASS_DECLARATION
public:
static MsgResetReadIndex* create()
{
return new MsgResetReadIndex();
}
private:
MsgResetReadIndex() :
Message()
{ }
};
DeviceAPI* m_deviceAPI;
ThreadedBasebandSampleSource* m_threadedChannelizer;
UpChannelizer* m_channelizer;
int m_basebandSampleRate;
Real m_outputSampleRate;
int m_inputFrequencyOffset;
UDPSourceSettings m_settings;
Real m_squelch;
NCO m_carrierNco;
Complex m_modSample;
BasebandSampleSink* m_spectrum;
bool m_spectrumEnabled;
SampleVector m_sampleBuffer;
int m_spectrumChunkSize;
int m_spectrumChunkCounter;
Interpolator m_interpolator;
Real m_interpolatorDistance;
Real m_interpolatorDistanceRemain;
bool m_interpolatorConsumed;
double m_magsq;
double m_inMagsq;
MovingAverage<double> m_movingAverage;
MovingAverage<double> m_inMovingAverage;
UDPSourceUDPHandler m_udpHandler;
Real m_actualInputSampleRate; //!< sample rate with UDP buffer skew compensation
double m_sampleRateSum;
int m_sampleRateAvgCounter;
int m_levelCalcCount;
Real m_peakLevel;
double m_levelSum;
int m_levelNbSamples;
bool m_squelchOpen;
int m_squelchOpenCount;
int m_squelchCloseCount;
int m_squelchThreshold;
float m_modPhasor; //!< Phasor for FM modulation
fftfilt* m_SSBFilter; //!< Complex filter for SSB modulation
Complex* m_SSBFilterBuffer;
int m_SSBFilterBufferIndex;
QNetworkAccessManager *m_networkManager;
QNetworkRequest m_networkRequest;
QMutex m_settingsMutex;
static const int m_sampleRateAverageItems = 17;
static const int m_ssbFftLen = 1024;
void applyChannelSettings(int basebandSampleRate, int outputSampleRate, int inputFrequencyOffset, bool force = false);
void applySettings(const UDPSourceSettings& settings, bool force = false);
void modulateSample();
void calculateLevel(Real sample);
void calculateLevel(Complex sample);
void webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const UDPSourceSettings& settings);
void webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response);
void webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const UDPSourceSettings& settings, bool force);
inline void calculateSquelch(double value)
{
if ((!m_settings.m_squelchEnabled) || (value > m_squelch))
{
if (m_squelchThreshold == 0)
{
m_squelchOpen = true;
}
else
{
if (m_squelchOpenCount < m_squelchThreshold)
{
m_squelchOpenCount++;
}
else
{
m_squelchCloseCount = m_squelchThreshold;
m_squelchOpen = true;
}
}
}
else
{
if (m_squelchThreshold == 0)
{
m_squelchOpen = false;
}
else
{
if (m_squelchCloseCount > 0)
{
m_squelchCloseCount--;
}
else
{
m_squelchOpenCount = 0;
m_squelchOpen = false;
}
}
}
}
inline void initSquelch(bool open)
{
if (open)
{
m_squelchOpen = true;
m_squelchOpenCount = m_squelchThreshold;
m_squelchCloseCount = m_squelchThreshold;
}
else
{
m_squelchOpen = false;
m_squelchOpenCount = 0;
m_squelchCloseCount = 0;
}
}
inline void readMonoSample(qint16& t)
{
if (m_settings.m_stereoInput)
{
AudioSample a;
m_udpHandler.readSample(a);
t = ((a.l + a.r) * m_settings.m_gainIn) / 2;
}
else
{
m_udpHandler.readSample(t);
t *= m_settings.m_gainIn;
}
}
};
#endif /* PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_ */