mirror of https://github.com/f4exb/sdrangel.git
467 lines
14 KiB
C
467 lines
14 KiB
C
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018 F4HKW //
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// for F4EXB / SDRAngel //
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// using LeanSDR Framework (C) 2016 F4DAV //
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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_DATVDEMOD_H
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#define INCLUDE_DATVDEMOD_H
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class DeviceSourceAPI;
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class ThreadedBasebandSampleSink;
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class DownChannelizer;
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#define rfFilterFftLength 1024
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#ifndef LEANSDR_FRAMEWORK
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#define LEANSDR_FRAMEWORK
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//LeanSDR
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#include "leansdr/framework.h"
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#include "leansdr/generic.h"
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#include "leansdr/dsp.h"
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#include "leansdr/sdr.h"
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#include "leansdr/dvb.h"
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#include "leansdr/rs.h"
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#include "leansdr/filtergen.h"
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#include "leansdr/hdlc.h"
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#include "leansdr/iess.h"
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#endif
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#include "datvconstellation.h"
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#include "datvvideoplayer.h"
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#include "channel/channelsinkapi.h"
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#include <dsp/basebandsamplesink.h>
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#include <dsp/devicesamplesource.h>
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#include <dsp/dspcommands.h>
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#include <dsp/downchannelizer.h>
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#include <dsp/fftfilt.h>
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#include <QMutex>
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#include <QElapsedTimer>
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#include <vector>
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#include "dsp/nco.h"
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#include "dsp/interpolator.h"
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#include "dsp/movingaverage.h"
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#include "dsp/agc.h"
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#include "audio/audiofifo.h"
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#include "util/message.h"
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#include <QBuffer>
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#include "datvideostream.h"
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#include "datvideorender.h"
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using namespace leansdr;
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enum DATVModulation { BPSK, QPSK, PSK8, APSK16, APSK32, APSK64E, QAM16, QAM64, QAM256 };
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enum dvb_version { DVB_S, DVB_S2 };
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enum dvb_sampler { SAMP_NEAREST, SAMP_LINEAR, SAMP_RRC };
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inline int decimation(float Fin, float Fout) { int d = Fin / Fout; return max(d, 1); }
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struct config
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{
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dvb_version standard;
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dvb_sampler sampler;
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int buf_factor; // Buffer sizing
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float Fs; // Sampling frequency (Hz)
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float Fderot; // Shift the signal (Hz). Note: Ftune is faster
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int anf; // Number of auto notch filters
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bool cnr; // Measure CNR
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unsigned int decim; // Decimation, 0=auto
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float Fm; // QPSK symbol rate (Hz)
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cstln_lut<256>::predef constellation;
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code_rate fec;
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float Ftune; // Bias frequency for the QPSK demodulator (Hz)
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bool allow_drift;
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bool fastlock;
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bool viterbi;
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bool hard_metric;
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bool resample;
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float resample_rej; // Approx. filter rejection in dB
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int rrc_steps; // Discrete steps between symbols, 0=auto
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float rrc_rej; // Approx. RRC filter rejection in dB
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float rolloff; // Roll-off 0..1
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bool hdlc; // Expect HDLC frames instead of MPEG packets
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bool packetized; // Output frames with 16-bit BE length
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float Finfo; // Desired refresh rate on fd_info (Hz)
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config() : buf_factor(4),
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Fs(2.4e6),
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Fderot(0),
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anf(1),
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cnr(false),
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decim(0),
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Fm(2e6),
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standard(DVB_S),
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constellation(cstln_lut<256>::QPSK),
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fec(FEC12),
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Ftune(0),
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allow_drift(false),
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fastlock(true),
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viterbi(false),
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hard_metric(false),
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resample(false),
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resample_rej(10),
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sampler(SAMP_LINEAR),
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rrc_steps(0),
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rrc_rej(10),
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rolloff(0.35),
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hdlc(false),
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packetized(false),
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Finfo(5)
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{
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}
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};
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struct DATVConfig
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{
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int intMsps;
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int intRFBandwidth;
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int intCenterFrequency;
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dvb_version enmStandard;
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DATVModulation enmModulation;
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code_rate enmFEC;
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int intSampleRate;
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int intSymbolRate;
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int intNotchFilters;
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bool blnAllowDrift;
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bool blnFastLock;
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bool blnHDLC;
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bool blnHardMetric;
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bool blnResample;
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bool blnViterbi;
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DATVConfig() :
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intMsps(1024000),
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intRFBandwidth(1024000),
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intCenterFrequency(0),
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enmStandard(DVB_S),
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enmModulation(BPSK),
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enmFEC(FEC12),
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intSampleRate(1024000),
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intSymbolRate(250000),
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intNotchFilters(1),
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blnAllowDrift(false),
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blnFastLock(false),
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blnHDLC(false),
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blnHardMetric(false),
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blnResample(false),
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blnViterbi(false)
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{
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}
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};
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class DATVDemod : public BasebandSampleSink, public ChannelSinkAPI
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{
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Q_OBJECT
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public:
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DATVDemod(DeviceSourceAPI *);
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~DATVDemod();
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virtual void destroy() { delete this; }
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virtual void getIdentifier(QString& id) { id = objectName(); }
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virtual void getTitle(QString& title) { title = objectName(); }
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virtual qint64 getCenterFrequency() const { return m_objRunning.intCenterFrequency; }
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virtual QByteArray serialize() const { return QByteArray(); }
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virtual bool deserialize(const QByteArray& data __attribute__((unused))) { return false; }
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void configure(MessageQueue* objMessageQueue,
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int intRFBandwidth,
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int intCenterFrequency,
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dvb_version enmStandard,
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DATVModulation enmModulation,
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code_rate enmFEC,
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int intSymbolRate,
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int intNotchFilters,
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bool blnAllowDrift,
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bool blnFastLock,
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bool blnHDLC,
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bool blnHardMetric,
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bool blnResample,
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bool blnViterbi);
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
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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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bool SetDATVScreen(DATVScreen *objScreen);
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DATVideostream * SetVideoRender(DATVideoRender *objScreen);
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bool PlayVideo(bool blnStartStop);
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void InitDATVParameters(int intMsps,
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int intRFBandwidth,
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int intCenterFrequency,
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dvb_version enmStandard,
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DATVModulation enmModulation,
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code_rate enmFEC,
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int intSampleRate,
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int intSymbolRate,
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int intNotchFilters,
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bool blnAllowDrift,
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bool blnFastLock,
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bool blnHDLC,
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bool blnHardMetric,
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bool blnResample,
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bool blnViterbi);
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void CleanUpDATVFramework(bool blnRelease);
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int GetSampleRate();
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void InitDATVFramework();
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static const QString m_channelIdURI;
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static const QString m_channelId;
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class MsgConfigureChannelizer : public Message
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{
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MESSAGE_CLASS_DECLARATION
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public:
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int getCenterFrequency() const { return m_centerFrequency; }
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static MsgConfigureChannelizer* create(int centerFrequency)
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{
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return new MsgConfigureChannelizer(centerFrequency);
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}
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private:
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int m_centerFrequency;
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MsgConfigureChannelizer(int centerFrequency) :
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Message(),
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m_centerFrequency(centerFrequency)
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{ }
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};
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private:
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unsigned long m_lngExpectedReadIQ;
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unsigned long m_lngReadIQ;
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//************** LEANDBV Parameters **************
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unsigned long BUF_BASEBAND;
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unsigned long BUF_SYMBOLS;
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unsigned long BUF_BYTES;
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unsigned long BUF_MPEGBYTES;
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unsigned long BUF_PACKETS;
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unsigned long BUF_SLOW;
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//************** LEANDBV Scheduler ***************
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scheduler * m_objScheduler;
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struct config m_objCfg;
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bool m_blnDVBInitialized;
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bool m_blnNeedConfigUpdate;
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//LeanSDR Pipe Buffer
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// INPUT
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pipebuf<cf32> *p_rawiq;
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pipewriter<cf32> *p_rawiq_writer;
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pipebuf<cf32> *p_preprocessed;
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// NOTCH FILTER
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auto_notch<f32> *r_auto_notch;
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pipebuf<cf32> *p_autonotched;
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// FREQUENCY CORRECTION : DEROTATOR
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pipebuf<cf32> *p_derot;
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rotator<f32> *r_derot;
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// CNR ESTIMATION
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pipebuf<f32> *p_cnr;
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cnr_fft<f32> *r_cnr;
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//FILTERING
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fir_filter<cf32,float> *r_resample;
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pipebuf<cf32> *p_resampled;
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float *coeffs;
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int ncoeffs;
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// OUTPUT PREPROCESSED DATA
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sampler_interface<f32> *sampler;
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float *coeffs_sampler;
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int ncoeffs_sampler;
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pipebuf<softsymbol> *p_symbols;
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pipebuf<f32> *p_freq;
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pipebuf<f32> *p_ss;
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pipebuf<f32> *p_mer;
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pipebuf<cf32> *p_sampled;
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//DECIMATION
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pipebuf<cf32> *p_decimated;
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decimator<cf32> *p_decim;
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//PROCESSED DATA MONITORING
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file_writer<cf32> *r_ppout;
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//GENERIC CONSTELLATION RECEIVER
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cstln_receiver<f32> *m_objDemodulator;
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// DECONVOLUTION AND SYNCHRONIZATION
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pipebuf<u8> *p_bytes;
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deconvol_sync_simple *r_deconv;
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viterbi_sync *r;
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pipebuf<u8> *p_descrambled;
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pipebuf<u8> *p_frames;
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etr192_descrambler * r_etr192_descrambler;
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hdlc_sync *r_sync;
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pipebuf<u8> *p_mpegbytes;
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pipebuf<int> *p_lock;
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pipebuf<u32> *p_locktime;
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mpeg_sync<u8,0> *r_sync_mpeg;
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// DEINTERLEAVING
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pipebuf< rspacket<u8> > *p_rspackets;
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deinterleaver<u8> *r_deinter;
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// REED-SOLOMON
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pipebuf<int> *p_vbitcount;
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pipebuf<int> *p_verrcount;
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pipebuf<tspacket> *p_rtspackets;
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rs_decoder<u8,0> *r_rsdec;
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// BER ESTIMATION
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pipebuf<float> *p_vber;
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rate_estimator<float> *r_vber;
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// DERANDOMIZATION
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pipebuf<tspacket> *p_tspackets;
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derandomizer *r_derand;
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//OUTPUT
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file_writer<tspacket> *r_stdout;
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datvvideoplayer<tspacket> *r_videoplayer;
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//CONSTELLATION
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datvconstellation<f32> *r_scope_symbols;
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private:
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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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//*************** DATV PARAMETERS ***************
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DATVScreen * m_objRegisteredDATVScreen;
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DATVideoRender * m_objRegisteredVideoRender;
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DATVideostream * m_objVideoStream;
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DATVideoRenderThread * m_objRenderThread;
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|
fftfilt * m_objRFFilter;
|
||
|
|
NCO m_objNCO;
|
||
|
|
|
||
|
|
bool m_blnInitialized;
|
||
|
|
bool m_blnRenderingVideo;
|
||
|
|
|
||
|
|
DATVModulation m_enmModulation;
|
||
|
|
|
||
|
|
//QElapsedTimer m_objTimer;
|
||
|
|
private:
|
||
|
|
|
||
|
|
class MsgConfigureDATVDemod : public Message
|
||
|
|
{
|
||
|
|
MESSAGE_CLASS_DECLARATION
|
||
|
|
|
||
|
|
public:
|
||
|
|
static MsgConfigureDATVDemod* create(int intRFBandwidth,
|
||
|
|
int intCenterFrequency,
|
||
|
|
dvb_version enmStandard,
|
||
|
|
DATVModulation enmModulation,
|
||
|
|
code_rate enmFEC,
|
||
|
|
int intSymbolRate,
|
||
|
|
int intNotchFilters,
|
||
|
|
bool blnAllowDrift,
|
||
|
|
bool blnFastLock,
|
||
|
|
bool blnHDLC,
|
||
|
|
bool blnHardMetric,
|
||
|
|
bool blnResample,
|
||
|
|
bool blnViterbi)
|
||
|
|
{
|
||
|
|
return new MsgConfigureDATVDemod(intRFBandwidth,intCenterFrequency,enmStandard, enmModulation, enmFEC, intSymbolRate, intNotchFilters, blnAllowDrift,blnFastLock,blnHDLC,blnHardMetric,blnResample, blnViterbi);
|
||
|
|
}
|
||
|
|
|
||
|
|
DATVConfig m_objMsgConfig;
|
||
|
|
|
||
|
|
private:
|
||
|
|
MsgConfigureDATVDemod(int intRFBandwidth,
|
||
|
|
int intCenterFrequency,
|
||
|
|
dvb_version enmStandard,
|
||
|
|
DATVModulation enmModulation,
|
||
|
|
code_rate enmFEC,
|
||
|
|
int intSymbolRate,
|
||
|
|
int intNotchFilters,
|
||
|
|
bool blnAllowDrift,
|
||
|
|
bool blnFastLock,
|
||
|
|
bool blnHDLC,
|
||
|
|
bool blnHardMetric,
|
||
|
|
bool blnResample,
|
||
|
|
bool blnViterbi) :
|
||
|
|
Message()
|
||
|
|
{
|
||
|
|
m_objMsgConfig.intRFBandwidth = intRFBandwidth;
|
||
|
|
m_objMsgConfig.intCenterFrequency = intCenterFrequency;
|
||
|
|
m_objMsgConfig.enmStandard = enmStandard;
|
||
|
|
m_objMsgConfig.enmModulation = enmModulation;
|
||
|
|
m_objMsgConfig.enmFEC = enmFEC;
|
||
|
|
m_objMsgConfig.intSymbolRate = intSymbolRate;
|
||
|
|
m_objMsgConfig.intNotchFilters = intNotchFilters;
|
||
|
|
m_objMsgConfig.blnAllowDrift = blnAllowDrift;
|
||
|
|
m_objMsgConfig.blnFastLock = blnFastLock;
|
||
|
|
m_objMsgConfig.blnHDLC = blnHDLC;
|
||
|
|
m_objMsgConfig.blnHardMetric = blnHardMetric;
|
||
|
|
m_objMsgConfig.blnResample = blnResample;
|
||
|
|
m_objMsgConfig.blnViterbi = blnViterbi;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
DATVConfig m_objRunning;
|
||
|
|
|
||
|
|
QMutex m_objSettingsMutex;
|
||
|
|
|
||
|
|
void ApplySettings();
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // INCLUDE_DATVDEMOD_H
|