mirror of
https://github.com/f4exb/sdrangel.git
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343 lines
10 KiB
C++
343 lines
10 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_
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#define PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_
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#include <QObject>
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#include <QNetworkRequest>
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#include "dsp/basebandsamplesource.h"
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#include "channel/channelapi.h"
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#include "dsp/basebandsamplesink.h"
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#include "dsp/interpolator.h"
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#include "dsp/movingaverage.h"
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#include "dsp/nco.h"
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#include "dsp/fftfilt.h"
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#include "util/message.h"
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#include "udpsourcesettings.h"
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#include "udpsourceudphandler.h"
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class QNetworkAccessManager;
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class QNetworkReply;
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class DeviceAPI;
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class ThreadedBasebandSampleSource;
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class UpChannelizer;
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class UDPSource : public BasebandSampleSource, public ChannelAPI {
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Q_OBJECT
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public:
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class MsgConfigureUDPSource : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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const UDPSourceSettings& getSettings() const { return m_settings; }
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bool getForce() const { return m_force; }
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static MsgConfigureUDPSource* create(const UDPSourceSettings& settings, bool force)
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{
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return new MsgConfigureUDPSource(settings, force);
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}
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private:
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UDPSourceSettings m_settings;
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bool m_force;
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MsgConfigureUDPSource(const UDPSourceSettings& settings, bool force) :
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Message(),
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m_settings(settings),
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m_force(force)
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{
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}
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};
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class MsgConfigureChannelizer : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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int getSampleRate() const { return m_sampleRate; }
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int getCenterFrequency() const { return m_centerFrequency; }
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static MsgConfigureChannelizer* create(int sampleRate, int centerFrequency)
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{
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return new MsgConfigureChannelizer(sampleRate, centerFrequency);
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}
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private:
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int m_sampleRate;
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int m_centerFrequency;
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MsgConfigureChannelizer(int sampleRate, int centerFrequency) :
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Message(),
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m_sampleRate(sampleRate),
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m_centerFrequency(centerFrequency)
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{ }
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};
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UDPSource(DeviceAPI *deviceAPI);
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virtual ~UDPSource();
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virtual void destroy() { delete this; }
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void setSpectrumSink(BasebandSampleSink* spectrum) { m_spectrum = spectrum; }
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virtual void start();
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virtual void stop();
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virtual void pull(Sample& sample);
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virtual bool handleMessage(const Message& cmd);
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virtual void getIdentifier(QString& id) { id = objectName(); }
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virtual void getTitle(QString& title) { title = m_settings.m_title; }
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virtual qint64 getCenterFrequency() const { return m_settings.m_inputFrequencyOffset; }
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virtual QByteArray serialize() const;
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virtual bool deserialize(const QByteArray& data);
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virtual int getNbSinkStreams() const { return 1; }
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virtual int getNbSourceStreams() const { return 0; }
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virtual qint64 getStreamCenterFrequency(int streamIndex, bool sinkElseSource) const
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{
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(void) streamIndex;
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(void) sinkElseSource;
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return m_settings.m_inputFrequencyOffset;
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}
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virtual int webapiSettingsGet(
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SWGSDRangel::SWGChannelSettings& response,
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QString& errorMessage);
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virtual int webapiSettingsPutPatch(
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bool force,
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const QStringList& channelSettingsKeys,
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SWGSDRangel::SWGChannelSettings& response,
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QString& errorMessage);
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virtual int webapiReportGet(
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SWGSDRangel::SWGChannelReport& response,
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QString& errorMessage);
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double getMagSq() const { return m_magsq; }
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double getInMagSq() const { return m_inMagsq; }
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int32_t getBufferGauge() const { return m_udpHandler.getBufferGauge(); }
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bool getSquelchOpen() const { return m_squelchOpen; }
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void setSpectrum(bool enabled);
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void resetReadIndex();
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static const QString m_channelIdURI;
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static const QString m_channelId;
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signals:
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/**
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* Level changed
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* \param rmsLevel RMS level in range 0.0 - 1.0
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* \param peakLevel Peak level in range 0.0 - 1.0
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* \param numSamples Number of audio samples analyzed
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*/
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void levelChanged(qreal rmsLevel, qreal peakLevel, int numSamples);
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private slots:
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void networkManagerFinished(QNetworkReply *reply);
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private:
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class MsgUDPSourceSpectrum : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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bool getEnabled() const { return m_enabled; }
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static MsgUDPSourceSpectrum* create(bool enabled)
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{
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return new MsgUDPSourceSpectrum(enabled);
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}
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private:
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bool m_enabled;
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MsgUDPSourceSpectrum(bool enabled) :
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Message(),
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m_enabled(enabled)
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{ }
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};
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class MsgResetReadIndex : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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static MsgResetReadIndex* create()
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{
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return new MsgResetReadIndex();
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}
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private:
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MsgResetReadIndex() :
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Message()
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{ }
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};
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DeviceAPI* m_deviceAPI;
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ThreadedBasebandSampleSource* m_threadedChannelizer;
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UpChannelizer* m_channelizer;
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int m_basebandSampleRate;
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Real m_outputSampleRate;
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int m_inputFrequencyOffset;
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UDPSourceSettings m_settings;
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Real m_squelch;
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NCO m_carrierNco;
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Complex m_modSample;
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BasebandSampleSink* m_spectrum;
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bool m_spectrumEnabled;
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SampleVector m_sampleBuffer;
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int m_spectrumChunkSize;
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int m_spectrumChunkCounter;
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Interpolator m_interpolator;
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Real m_interpolatorDistance;
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Real m_interpolatorDistanceRemain;
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bool m_interpolatorConsumed;
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double m_magsq;
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double m_inMagsq;
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MovingAverage<double> m_movingAverage;
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MovingAverage<double> m_inMovingAverage;
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UDPSourceUDPHandler m_udpHandler;
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Real m_actualInputSampleRate; //!< sample rate with UDP buffer skew compensation
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double m_sampleRateSum;
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int m_sampleRateAvgCounter;
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int m_levelCalcCount;
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Real m_peakLevel;
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double m_levelSum;
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int m_levelNbSamples;
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bool m_squelchOpen;
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int m_squelchOpenCount;
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int m_squelchCloseCount;
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int m_squelchThreshold;
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float m_modPhasor; //!< Phasor for FM modulation
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fftfilt* m_SSBFilter; //!< Complex filter for SSB modulation
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Complex* m_SSBFilterBuffer;
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int m_SSBFilterBufferIndex;
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QNetworkAccessManager *m_networkManager;
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QNetworkRequest m_networkRequest;
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QMutex m_settingsMutex;
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static const int m_sampleRateAverageItems = 17;
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static const int m_ssbFftLen = 1024;
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void applyChannelSettings(int basebandSampleRate, int outputSampleRate, int inputFrequencyOffset, bool force = false);
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void applySettings(const UDPSourceSettings& settings, bool force = false);
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void modulateSample();
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void calculateLevel(Real sample);
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void calculateLevel(Complex sample);
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void webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const UDPSourceSettings& settings);
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void webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response);
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void webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const UDPSourceSettings& settings, bool force);
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inline void calculateSquelch(double value)
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{
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if ((!m_settings.m_squelchEnabled) || (value > m_squelch))
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{
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if (m_squelchThreshold == 0)
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{
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m_squelchOpen = true;
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}
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else
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{
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if (m_squelchOpenCount < m_squelchThreshold)
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{
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m_squelchOpenCount++;
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}
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else
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{
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m_squelchCloseCount = m_squelchThreshold;
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m_squelchOpen = true;
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}
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}
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}
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else
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{
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if (m_squelchThreshold == 0)
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{
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m_squelchOpen = false;
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}
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else
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{
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if (m_squelchCloseCount > 0)
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{
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m_squelchCloseCount--;
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}
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else
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{
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m_squelchOpenCount = 0;
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m_squelchOpen = false;
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}
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}
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}
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}
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inline void initSquelch(bool open)
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{
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if (open)
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{
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m_squelchOpen = true;
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m_squelchOpenCount = m_squelchThreshold;
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m_squelchCloseCount = m_squelchThreshold;
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}
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else
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{
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m_squelchOpen = false;
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m_squelchOpenCount = 0;
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m_squelchCloseCount = 0;
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}
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}
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inline void readMonoSample(qint16& t)
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{
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if (m_settings.m_stereoInput)
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{
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AudioSample a;
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m_udpHandler.readSample(a);
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t = ((a.l + a.r) * m_settings.m_gainIn) / 2;
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}
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else
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{
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m_udpHandler.readSample(t);
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t *= m_settings.m_gainIn;
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}
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}
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};
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#endif /* PLUGINS_CHANNELTX_UDPSINK_UDPSOURCE_H_ */
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