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sdrangel/plugins/channelrx/udpsink/udpsink.h

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015 F4EXB //
// written by Edouard Griffiths //
// //
// 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_UDPSRC_H
#define INCLUDE_UDPSRC_H
#include <QMutex>
#include <QHostAddress>
#include <QNetworkRequest>
#include "dsp/basebandsamplesink.h"
#include "channel/channelapi.h"
#include "dsp/nco.h"
#include "dsp/fftfilt.h"
#include "dsp/interpolator.h"
#include "dsp/phasediscri.h"
#include "dsp/movingaverage.h"
#include "dsp/agc.h"
#include "dsp/bandpass.h"
#include "util/udpsinkutil.h"
#include "util/message.h"
#include "audio/audiofifo.h"
#include "udpsinksettings.h"
class QNetworkAccessManager;
class QNetworkReply;
class QUdpSocket;
class DeviceAPI;
class ThreadedBasebandSampleSink;
class DownChannelizer;
class UDPSink : public BasebandSampleSink, public ChannelAPI {
Q_OBJECT
public:
class MsgConfigureUDPSource : public Message {
MESSAGE_CLASS_DECLARATION
public:
const UDPSinkSettings& getSettings() const { return m_settings; }
bool getForce() const { return m_force; }
static MsgConfigureUDPSource* create(const UDPSinkSettings& settings, bool force)
{
return new MsgConfigureUDPSource(settings, force);
}
private:
UDPSinkSettings m_settings;
bool m_force;
MsgConfigureUDPSource(const UDPSinkSettings& 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)
{ }
};
UDPSink(DeviceAPI *deviceAPI);
virtual ~UDPSink();
virtual void destroy() { delete this; }
void setSpectrum(BasebandSampleSink* spectrum) { m_spectrum = spectrum; }
void setSpectrum(MessageQueue* messageQueue, bool enabled);
double getMagSq() const { return m_magsq; }
double getInMagSq() const { return m_inMagsq; }
bool getSquelchOpen() const { return m_squelchOpen; }
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;
}
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 void webapiFormatChannelSettings(
SWGSDRangel::SWGChannelSettings& response,
const UDPSinkSettings& settings);
static void webapiUpdateChannelSettings(
UDPSinkSettings& settings,
const QStringList& channelSettingsKeys,
SWGSDRangel::SWGChannelSettings& response);
uint32_t getNumberOfDeviceStreams() const;
static const QString m_channelIdURI;
static const QString m_channelId;
static const int udpBlockSize = 512; // UDP block size in number of bytes
public slots:
void audioReadyRead();
private slots:
void networkManagerFinished(QNetworkReply *reply);
protected:
class MsgUDPSinkSpectrum : public Message {
MESSAGE_CLASS_DECLARATION
public:
bool getEnabled() const { return m_enabled; }
static MsgUDPSinkSpectrum* create(bool enabled)
{
return new MsgUDPSinkSpectrum(enabled);
}
private:
bool m_enabled;
MsgUDPSinkSpectrum(bool enabled) :
Message(),
m_enabled(enabled)
{ }
};
struct Sample16
{
Sample16() : m_r(0), m_i(0) {}
Sample16(int16_t r, int16_t i) : m_r(r), m_i(i) {}
int16_t m_r;
int16_t m_i;
};
struct Sample24
{
Sample24() : m_r(0), m_i(0) {}
Sample24(int32_t r, int32_t i) : m_r(r), m_i(i) {}
int32_t m_r;
int32_t m_i;
};
DeviceAPI *m_deviceAPI;
ThreadedBasebandSampleSink* m_threadedChannelizer;
DownChannelizer* m_channelizer;
int m_inputSampleRate;
int m_inputFrequencyOffset;
UDPSinkSettings m_settings;
QUdpSocket *m_audioSocket;
double m_magsq;
double m_inMagsq;
MovingAverage<double> m_outMovingAverage;
MovingAverage<double> m_inMovingAverage;
MovingAverage<double> m_amMovingAverage;
Real m_scale;
Complex m_last, m_this;
NCO m_nco;
Interpolator m_interpolator;
Real m_sampleDistanceRemain;
fftfilt* UDPFilter;
SampleVector m_sampleBuffer;
UDPSinkUtil<Sample16> *m_udpBuffer16;
UDPSinkUtil<int16_t> *m_udpBufferMono16;
UDPSinkUtil<Sample24> *m_udpBuffer24;
AudioVector m_audioBuffer;
uint m_audioBufferFill;
AudioFifo m_audioFifo;
BasebandSampleSink* m_spectrum;
bool m_spectrumEnabled;
quint32 m_nextSSBId;
quint32 m_nextS16leId;
char *m_udpAudioBuf;
static const int m_udpAudioPayloadSize = 8192; //!< UDP audio samples buffer. No UDP block on Earth is larger than this
static const Real m_agcTarget;
PhaseDiscriminators m_phaseDiscri;
double m_squelch;
bool m_squelchOpen;
int m_squelchOpenCount;
int m_squelchCloseCount;
int m_squelchGate; //!< number of samples computed from given gate
int m_squelchRelease;
MagAGC m_agc;
Bandpass<double> m_bandpass;
QNetworkAccessManager *m_networkManager;
QNetworkRequest m_networkRequest;
QMutex m_settingsMutex;
void applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force = true);
void applySettings(const UDPSinkSettings& settings, bool force = false);
void webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response);
void webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const UDPSinkSettings& settings, bool force);
inline void calculateSquelch(double value)
{
if ((!m_settings.m_squelchEnabled) || (value > m_squelch))
{
if (m_squelchGate == 0)
{
m_squelchOpen = true;
}
else
{
if (m_squelchOpenCount < m_squelchGate)
{
m_squelchOpenCount++;
}
else
{
m_squelchCloseCount = m_squelchRelease;
m_squelchOpen = true;
}
}
}
else
{
if (m_squelchGate == 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_squelchGate;
m_squelchCloseCount = m_squelchRelease;
}
else
{
m_squelchOpen = false;
m_squelchOpenCount = 0;
m_squelchCloseCount = 0;
}
}
void udpWrite(FixReal real, FixReal imag)
{
if (SDR_RX_SAMP_SZ == 16)
{
if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ16) {
m_udpBuffer16->write(Sample16(real, imag));
} else if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ24) {
m_udpBuffer24->write(Sample24(real<<8, imag<<8));
} else {
m_udpBuffer16->write(Sample16(real, imag));
}
}
else if (SDR_RX_SAMP_SZ == 24)
{
if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ16) {
m_udpBuffer16->write(Sample16(real>>8, imag>>8));
} else if (m_settings.m_sampleFormat == UDPSinkSettings::FormatIQ24) {
m_udpBuffer24->write(Sample24(real, imag));
} else {
m_udpBuffer16->write(Sample16(real>>8, imag>>8));
}
}
}
void udpWriteMono(FixReal sample)
{
if (SDR_RX_SAMP_SZ == 16)
{
m_udpBufferMono16->write(sample);
}
else if (SDR_RX_SAMP_SZ == 24)
{
m_udpBufferMono16->write(sample>>8);
}
}
void udpWriteNorm(Real real, Real imag)
{
m_udpBuffer16->write(Sample16(real*32768.0, imag*32768.0));
}
void udpWriteNormMono(Real sample)
{
m_udpBufferMono16->write(sample*32768.0);
}
};
#endif // INCLUDE_UDPSRC_H
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