mirror of
https://github.com/f4exb/sdrangel.git
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345 lines
10 KiB
C++
345 lines
10 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2015 F4EXB //
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// written by Edouard Griffiths //
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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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// //
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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 INCLUDE_UDPSRC_H
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#define INCLUDE_UDPSRC_H
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#include <QMutex>
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#include <QHostAddress>
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#include "dsp/basebandsamplesink.h"
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#include "channel/channelsinkapi.h"
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#include "dsp/nco.h"
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#include "dsp/fftfilt.h"
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#include "dsp/interpolator.h"
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#include "dsp/phasediscri.h"
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#include "dsp/movingaverage.h"
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#include "dsp/agc.h"
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#include "dsp/bandpass.h"
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#include "util/udpsinkutil.h"
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#include "util/message.h"
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#include "audio/audiofifo.h"
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#include "udpsinksettings.h"
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class QUdpSocket;
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class DeviceSourceAPI;
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class ThreadedBasebandSampleSink;
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class DownChannelizer;
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class UDPSink : public BasebandSampleSink, public ChannelSinkAPI {
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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 UDPSinkSettings& getSettings() const { return m_settings; }
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bool getForce() const { return m_force; }
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static MsgConfigureUDPSource* create(const UDPSinkSettings& 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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UDPSinkSettings m_settings;
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bool m_force;
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MsgConfigureUDPSource(const UDPSinkSettings& 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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UDPSink(DeviceSourceAPI *deviceAPI);
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virtual ~UDPSink();
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virtual void destroy() { delete this; }
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void setSpectrum(BasebandSampleSink* spectrum) { m_spectrum = spectrum; }
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void setSpectrum(MessageQueue* messageQueue, bool enabled);
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double getMagSq() const { return m_magsq; }
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double getInMagSq() const { return m_inMagsq; }
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bool getSquelchOpen() const { return m_squelchOpen; }
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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virtual void stop();
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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 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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static const QString m_channelIdURI;
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static const QString m_channelId;
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static const int udpBlockSize = 512; // UDP block size in number of bytes
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public slots:
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void audioReadyRead();
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protected:
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class MsgUDPSinkSpectrum : 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 MsgUDPSinkSpectrum* create(bool enabled)
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{
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return new MsgUDPSinkSpectrum(enabled);
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}
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private:
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bool m_enabled;
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MsgUDPSinkSpectrum(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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struct Sample16
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{
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Sample16() : m_r(0), m_i(0) {}
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Sample16(int16_t r, int16_t i) : m_r(r), m_i(i) {}
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int16_t m_r;
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int16_t m_i;
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};
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struct Sample24
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{
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Sample24() : m_r(0), m_i(0) {}
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Sample24(int32_t r, int32_t i) : m_r(r), m_i(i) {}
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int32_t m_r;
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int32_t m_i;
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};
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DeviceSourceAPI *m_deviceAPI;
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ThreadedBasebandSampleSink* m_threadedChannelizer;
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DownChannelizer* m_channelizer;
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int m_inputSampleRate;
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int m_inputFrequencyOffset;
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UDPSinkSettings m_settings;
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QUdpSocket *m_audioSocket;
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double m_magsq;
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double m_inMagsq;
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MovingAverage<double> m_outMovingAverage;
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MovingAverage<double> m_inMovingAverage;
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MovingAverage<double> m_amMovingAverage;
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Real m_scale;
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Complex m_last, m_this;
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NCO m_nco;
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Interpolator m_interpolator;
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Real m_sampleDistanceRemain;
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fftfilt* UDPFilter;
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SampleVector m_sampleBuffer;
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UDPSinkUtil<Sample16> *m_udpBuffer16;
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UDPSinkUtil<int16_t> *m_udpBufferMono16;
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UDPSinkUtil<Sample24> *m_udpBuffer24;
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AudioVector m_audioBuffer;
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uint m_audioBufferFill;
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AudioFifo m_audioFifo;
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BasebandSampleSink* m_spectrum;
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bool m_spectrumEnabled;
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quint32 m_nextSSBId;
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quint32 m_nextS16leId;
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char *m_udpAudioBuf;
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static const int m_udpAudioPayloadSize = 8192; //!< UDP audio samples buffer. No UDP block on Earth is larger than this
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static const Real m_agcTarget;
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PhaseDiscriminators m_phaseDiscri;
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double m_squelch;
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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_squelchGate; //!< number of samples computed from given gate
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int m_squelchRelease;
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MagAGC m_agc;
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Bandpass<double> m_bandpass;
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QMutex m_settingsMutex;
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void applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force = true);
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void applySettings(const UDPSinkSettings& settings, bool force = false);
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void webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const UDPSinkSettings& settings);
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void webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response);
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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_squelchGate == 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_squelchGate)
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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_squelchRelease;
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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_squelchGate == 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_squelchGate;
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m_squelchCloseCount = m_squelchRelease;
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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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void udpWrite(FixReal real, FixReal imag)
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{
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if (SDR_RX_SAMP_SZ == 16)
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{
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if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ16) {
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m_udpBuffer16->write(Sample16(real, imag));
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} else if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ24) {
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m_udpBuffer24->write(Sample24(real<<8, imag<<8));
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} else {
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m_udpBuffer16->write(Sample16(real, imag));
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}
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}
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else if (SDR_RX_SAMP_SZ == 24)
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{
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if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ16) {
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m_udpBuffer16->write(Sample16(real>>8, imag>>8));
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} else if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ24) {
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m_udpBuffer24->write(Sample24(real, imag));
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} else {
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m_udpBuffer16->write(Sample16(real>>8, imag>>8));
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}
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}
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}
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void udpWriteMono(FixReal sample)
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{
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if (SDR_RX_SAMP_SZ == 16)
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{
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m_udpBufferMono16->write(sample);
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}
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else if (SDR_RX_SAMP_SZ == 24)
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{
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m_udpBufferMono16->write(sample>>8);
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}
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}
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void udpWriteNorm(Real real, Real imag)
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{
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m_udpBuffer16->write(Sample16(real*32768.0, imag*32768.0));
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}
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void udpWriteNormMono(Real sample)
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{
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m_udpBufferMono16->write(sample*32768.0);
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}
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};
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#endif // INCLUDE_UDPSRC_H
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