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sdrangel/plugins/channelrx/demoddatv/datvdemodsink.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018-2021, 2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
// Copyright (C) 2022 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "datvdemodsink.h"
#include "leansdr/dvbs2.h"
#include <QDebug>
#include <QObject>
#include <QFileInfo>
#include <QMutexLocker>
#include "audio/audiooutputdevice.h"
#include "dsp/dspengine.h"
#include "device/deviceapi.h"
#include "datvdemodreport.h"
const unsigned int DATVDemodSink::m_rfFilterFftLength = 512;
DATVDemodSink::DATVDemodSink() :
m_blnNeedConfigUpdate(false),
m_tvScreen(nullptr),
m_videoRender(nullptr),
m_videoStream(new DATVideostream()),
m_udpStream(leansdr::tspacket::SIZE),
m_videoThread(nullptr),
m_audioFifo(48000),
m_blnRenderingVideo(false),
m_cstlnSetByModcod(false),
m_modcodModulation(-1),
m_modcodCodeRate(-1),
m_enmModulation(DATVDemodSettings::BPSK /*DATV_FM1*/),
m_channelSampleRate(1024000),
m_messageQueueToGUI(nullptr)
{
//*************** DATV PARAMETERS ***************
m_blnInitialized=false;
ResetDATVFrameworkPointers();
}
DATVDemodSink::~DATVDemodSink()
{
m_blnInitialized = false;
//Immediately exit from DATVideoStream if waiting for data before killing thread
m_videoStream->setThreadTimeout(0);
m_videoStream->deleteLater();
stopVideo();
CleanUpDATVFramework();
if (m_videoThread) {
delete m_videoThread;
}
}
void DATVDemodSink::stopVideo()
{
if (m_videoThread)
{
if (m_videoThread->isRunning())
{
m_videoThread->stopRendering();
m_videoThread->quit();
m_videoThread->wait();
}
}
}
void DATVDemodSink::setTVScreen(TVScreen *tvScreen)
{
m_tvScreen = tvScreen;
}
void DATVDemodSink::SetVideoRender(DATVideoRender *screen)
{
m_videoRender = screen;
m_videoRender->setAudioFIFO(&m_audioFifo);
m_videoThread = new DATVideoRenderThread(m_videoRender, m_videoStream);
m_videoThread->setObjectName("vtDATVDemodSink");
}
bool DATVDemodSink::audioActive()
{
if (m_videoRender) {
return m_videoRender->getAudioStreamIndex() >= 0;
} else {
return false;
}
}
bool DATVDemodSink::videoActive()
{
if (m_videoRender) {
return m_videoRender->getVideoStreamIndex() >= 0;
} else {
return false;
}
}
bool DATVDemodSink::audioDecodeOK()
{
if (m_videoRender) {
return m_videoRender->getAudioDecodeOK();
} else {
return false;
}
}
bool DATVDemodSink::videoDecodeOK()
{
if (m_videoRender) {
return m_videoRender->getVideoDecodeOK();
} else {
return false;
}
}
bool DATVDemodSink::udpRunning()
{
if (!r_videoplayer) {
return false;
}
bool udpRunning = r_videoplayer->isUDPRunning();
r_videoplayer->resetUDPRunning();
return udpRunning;
}
bool DATVDemodSink::playVideo()
{
QMutexLocker mlock(&m_mutex);
if (m_videoStream == nullptr) {
return false;
}
if (m_videoRender == nullptr) {
return false;
}
if (m_videoThread == nullptr) {
return false;
}
if (m_videoThread->isRunning()) {
return true;
}
if (m_videoStream->bytesAvailable() > 0)
{
m_videoStream->setMultiThreaded(true);
m_videoStream->setThreadTimeout(DATVideoRenderThread::videoThreadTimeoutMs);
m_videoThread->start();
}
return false;
}
void DATVDemodSink::CleanUpDATVFramework()
{
if (m_videoStream) {
m_videoStream->cleanUp();
}
if (m_objScheduler != nullptr)
{
m_objScheduler->shutdown();
delete m_objScheduler;
}
// NOTCH FILTER
if (r_auto_notch != nullptr) {
delete r_auto_notch;
}
if (p_autonotched != nullptr) {
delete p_autonotched;
}
// FREQUENCY CORRECTION : DEROTATOR
if (p_derot != nullptr) {
delete p_derot;
}
if (r_derot != nullptr) {
delete r_derot;
}
// CNR ESTIMATION
if (p_cnr != nullptr) {
delete p_cnr;
}
if (r_cnr != nullptr) {
delete r_cnr;
}
if (r_cnrMeter != nullptr) {
delete r_cnrMeter;
}
//FILTERING
if (r_resample != nullptr) {
delete r_resample;
}
if (p_resampled != nullptr) {
delete p_resampled;
}
if (coeffs != nullptr) {
delete coeffs;
}
// OUTPUT PREPROCESSED DATA
if (sampler != nullptr) {
delete sampler;
}
if (coeffs_sampler != nullptr) {
delete coeffs_sampler;
}
if (p_symbols != nullptr) {
delete p_symbols;
}
if (p_freq != nullptr) {
delete p_freq;
}
if (p_ss != nullptr) {
delete p_ss;
}
if (p_mer != nullptr) {
delete p_mer;
}
if (r_merMeter != nullptr) {
delete r_merMeter;
}
if (p_sampled != nullptr) {
delete p_sampled;
}
//DECIMATION
if (p_decimated != nullptr) {
delete p_decimated;
}
if (p_decim != nullptr) {
delete p_decim;
}
if (r_ppout != nullptr) {
delete r_ppout;
}
//GENERIC CONSTELLATION RECEIVER
if (m_objDemodulator != nullptr) {
delete m_objDemodulator;
}
//DECONVOLUTION AND SYNCHRONIZATION
if (p_bytes != nullptr) {
delete p_bytes;
}
if (r_deconv != nullptr) {
delete r_deconv;
}
if (r != nullptr) {
delete r;
}
if (p_descrambled != nullptr) {
delete p_descrambled;
}
if (p_frames != nullptr) {
delete p_frames;
}
if (r_etr192_descrambler != nullptr) {
delete r_etr192_descrambler;
}
if (r_sync != nullptr) {
delete r_sync;
}
if (p_mpegbytes != nullptr) {
delete p_mpegbytes;
}
if (p_lock != nullptr) {
delete p_lock;
}
if (p_locktime != nullptr) {
delete p_locktime;
}
if (r_sync_mpeg != nullptr) {
delete r_sync_mpeg;
}
// DEINTERLEAVING
if (p_rspackets != nullptr) {
delete p_rspackets;
}
if (r_deinter != nullptr) {
delete r_deinter;
}
if (p_vbitcount != nullptr) {
delete p_vbitcount;
}
if (p_verrcount != nullptr) {
delete p_verrcount;
}
if (p_rtspackets != nullptr) {
delete p_rtspackets;
}
if (r_rsdec != nullptr) {
delete r_rsdec;
}
//BER ESTIMATION
if (p_vber != nullptr) {
delete p_vber;
}
if (r_vber != nullptr) {
delete r_vber;
}
// DERANDOMIZATION
if (p_tspackets != nullptr) {
delete p_tspackets;
}
if (r_derand != nullptr) {
delete r_derand;
}
//OUTPUT
if (r_videoplayer != nullptr) {
delete r_videoplayer;
}
//CONSTELLATION
if (r_scope_symbols != nullptr) {
delete r_scope_symbols;
}
// INPUT
if (p_rawiq != nullptr) {
delete p_rawiq;
}
if (p_rawiq_writer != nullptr) {
delete p_rawiq_writer;
}
//if(p_preprocessed!=nullptr) delete p_preprocessed;
//DVB-S2
if (p_slots_dvbs2 != nullptr) {
delete (leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> >*) p_slots_dvbs2;
}
if (p_cstln != nullptr) {
delete p_cstln;
}
if (p_cstln_pls != nullptr) {
delete p_cstln_pls;
}
if (p_framelock != nullptr) {
delete p_framelock;
}
if (m_objDemodulatorDVBS2 != nullptr) {
delete (leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss>*) m_objDemodulatorDVBS2;
}
if (p_fecframes != nullptr) {
delete (leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> >*) p_fecframes;
}
if (p_bbframes != nullptr) {
delete (leansdr::pipebuf<leansdr::bbframe>*) p_bbframes;
}
if (p_s2_deinterleaver != nullptr) {
delete (leansdr::s2_deinterleaver<leansdr::llr_ss,leansdr::hard_sb>*) p_s2_deinterleaver;
}
if (r_fecdec != nullptr) {
delete (leansdr::s2_fecdec<bool, leansdr::hard_sb>*) r_fecdec;
}
#if 0
if (r_fecdecsoft != nullptr) {
delete (leansdr::s2_fecdec_soft<leansdr::llr_t,leansdr::llr_sb>*) r_fecdecsoft;
}
#endif
if (r_fecdechelper != nullptr) {
delete (leansdr::s2_fecdec_helper<leansdr::llr_t,leansdr::llr_sb>*) r_fecdechelper;
}
if (p_deframer != nullptr) {
delete (leansdr::s2_deframer*) p_deframer;
}
if (r_scope_symbols_dvbs2 != nullptr) {
delete r_scope_symbols_dvbs2;
}
ResetDATVFrameworkPointers();
}
void DATVDemodSink::ResetDATVFrameworkPointers()
{
// INPUT
m_objScheduler = nullptr;
p_rawiq = nullptr;
p_rawiq_writer = nullptr;
p_preprocessed = nullptr;
// NOTCH FILTER
r_auto_notch = nullptr;
p_autonotched = nullptr;
// FREQUENCY CORRECTION : DEROTATOR
p_derot = nullptr;
r_derot=nullptr;
// CNR ESTIMATION
p_cnr = nullptr;
r_cnr = nullptr;
r_cnrMeter = nullptr;
//FILTERING
r_resample = nullptr;
p_resampled = nullptr;
coeffs = nullptr;
ncoeffs=0;
// OUTPUT PREPROCESSED DATA
sampler = nullptr;
coeffs_sampler = nullptr;
ncoeffs_sampler = 0;
p_symbols = nullptr;
p_freq = nullptr;
p_ss = nullptr;
p_mer = nullptr;
r_merMeter = nullptr;
p_sampled = nullptr;
//DECIMATION
p_decimated = nullptr;
p_decim = nullptr;
r_ppout = nullptr;
//GENERIC CONSTELLATION RECEIVER
m_objDemodulator = nullptr;
//DECONVOLUTION AND SYNCHRONIZATION
p_bytes = nullptr;
r_deconv = nullptr;
r = nullptr;
p_descrambled = nullptr;
p_frames = nullptr;
r_etr192_descrambler = nullptr;
r_sync = nullptr;
p_mpegbytes = nullptr;
p_lock = nullptr;
p_locktime = nullptr;
r_sync_mpeg = nullptr;
// DEINTERLEAVING
p_rspackets = nullptr;
r_deinter = nullptr;
p_vbitcount = nullptr;
p_verrcount = nullptr;
p_rtspackets = nullptr;
r_rsdec = nullptr;
//BER ESTIMATION
p_vber = nullptr;
r_vber = nullptr;
// DERANDOMIZATION
p_tspackets = nullptr;
r_derand = nullptr;
//OUTPUT : To remove void *
r_videoplayer = nullptr;
//CONSTELLATION
r_scope_symbols = nullptr;
//DVB-S2
p_slots_dvbs2 = nullptr;
p_cstln = nullptr;
p_cstln_pls = nullptr;
p_framelock = nullptr;
m_objDemodulatorDVBS2 = nullptr;
p_fecframes = nullptr;
p_bbframes = nullptr;
p_s2_deinterleaver = nullptr;
r_fecdec = nullptr;
r_fecdecsoft = nullptr;
r_fecdechelper = nullptr;
p_deframer = nullptr;
r_scope_symbols_dvbs2 = nullptr;
}
void DATVDemodSink::InitDATVFramework()
{
m_blnDVBInitialized = false;
m_lngReadIQ = 0;
CleanUpDATVFramework();
qDebug() << "DATVDemodSink::InitDATVFramework:"
<< " Standard: " << m_settings.m_standard
<< " Symbol Rate: " << m_settings.m_symbolRate
<< " Modulation: " << m_settings.m_modulation
<< " Notch Filters: " << m_settings.m_notchFilters
<< " Allow Drift: " << m_settings.m_allowDrift
<< " Fast Lock: " << m_settings.m_fastLock
<< " Filter: " << m_settings.m_filter
<< " HARD METRIC: " << m_settings.m_hardMetric
<< " RollOff: " << m_settings.m_rollOff
<< " Viterbi: " << m_settings.m_viterbi
<< " Excursion: " << m_settings.m_excursion
<< " channel Sample rate: " << m_channelSampleRate
<< " Input sample rate: " << 2 * m_settings.m_symbolRate;
m_objCfg.standard = m_settings.m_standard;
m_objCfg.fec = (leansdr::code_rate) getLeanDVBCodeRateFromDATV(m_settings.m_fec);
m_objCfg.Fs = (float) 2 * m_settings.m_symbolRate; // maintained at twice the symbol rate
m_objCfg.Fm = (float) m_settings.m_symbolRate;
m_objCfg.fastlock = m_settings.m_fastLock;
m_objCfg.sampler = m_settings.m_filter;
m_objCfg.rolloff = m_settings.m_rollOff; //0...1
m_objCfg.rrc_rej = (float) m_settings.m_excursion; //dB
m_objCfg.rrc_steps = 0; //auto
m_videoStream->resetTotalReceived();
m_udpStream.resetTotalReceived();
switch(m_settings.m_modulation)
{
case DATVDemodSettings::BPSK:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::BPSK;
break;
case DATVDemodSettings::QPSK:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::QPSK;
break;
case DATVDemodSettings::PSK8:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::PSK8;
break;
case DATVDemodSettings::APSK16:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::APSK16;
break;
case DATVDemodSettings::APSK32:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::APSK32;
break;
case DATVDemodSettings::APSK64E:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::APSK64E;
break;
case DATVDemodSettings::QAM16:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::QAM16;
break;
case DATVDemodSettings::QAM64:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::QAM64;
break;
case DATVDemodSettings::QAM256:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::QAM256;
break;
default:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::eucl_ss, 256>::BPSK;
break;
}
m_objCfg.allow_drift = m_settings.m_allowDrift;
m_objCfg.anf = m_settings.m_notchFilters;
m_objCfg.hard_metric = m_settings.m_hardMetric;
m_objCfg.sampler = m_settings.m_filter;
m_objCfg.viterbi = m_settings.m_viterbi;
// Min buffer size for baseband data
// scopes: 1024
// ss_estimator: 1024
// anf: 4096
// cstln_receiver: reads in chunks of 128+1
BUF_BASEBAND = 4096 * m_objCfg.buf_factor;
// Min buffer size for IQ symbols
// cstln_receiver: writes in chunks of 128/omega symbols (margin 128)
// deconv_sync: reads at least 64+32
// A larger buffer improves performance significantly.
BUF_SYMBOLS = 1024 * m_objCfg.buf_factor;
// Min buffer size for unsynchronized bytes
// deconv_sync: writes 32 bytes
// mpeg_sync: reads up to 204*scan_syncs = 1632 bytes
BUF_BYTES = 2048 * m_objCfg.buf_factor;
// Min buffer size for synchronized (but interleaved) bytes
// mpeg_sync: writes 1 rspacket
// deinterleaver: reads 17*11*12+204 = 2448 bytes
BUF_MPEGBYTES = 2448 * m_objCfg.buf_factor;
// Min buffer size for packets: 1
BUF_PACKETS = m_objCfg.buf_factor;
// Min buffer size for misc measurements: 1
BUF_SLOW = m_objCfg.buf_factor;
m_lngExpectedReadIQ = BUF_BASEBAND;
m_objScheduler = new leansdr::scheduler();
//***************
p_rawiq = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "rawiq", BUF_BASEBAND);
p_rawiq_writer = new leansdr::pipewriter<leansdr::cf32>(*p_rawiq, m_RawIQMinWrite);
p_preprocessed = p_rawiq;
// NOTCH FILTER
if (m_objCfg.anf>0)
{
p_autonotched = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "autonotched", BUF_BASEBAND);
r_auto_notch = new leansdr::auto_notch<leansdr::f32>(m_objScheduler, *p_preprocessed, *p_autonotched, m_objCfg.anf, 0);
p_preprocessed = p_autonotched;
}
// FREQUENCY CORRECTION
//******** -> if ( m_objCfg.Fderot>0 )
// CNR ESTIMATION
p_cnr = new leansdr::pipebuf<leansdr::f32>(m_objScheduler, "cnr", BUF_SLOW);
if (m_objCfg.cnr == true)
{
r_cnr = new leansdr::cnr_fft<leansdr::f32>(m_objScheduler, *p_preprocessed, *p_cnr, m_objCfg.Fm/m_objCfg.Fs, 1024);
r_cnr->decimation = decimation(m_objCfg.Fs, 5); // 5 Hz
}
// FILTERING
int decim = 1;
//******** -> if ( m_objCfg.resample )
// DECIMATION
// (Unless already done in resampler)
//******** -> if ( !m_objCfg.resample && m_objCfg.decim>1 )
//Resampling FS
// Generic constellation receiver
p_symbols = new leansdr::pipebuf<leansdr::eucl_ss>(m_objScheduler, "PSK soft-symbols", BUF_SYMBOLS);
p_freq = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "freq", BUF_SLOW);
p_ss = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "SS", BUF_SLOW);
p_mer = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "MER", BUF_SLOW);
p_sampled = new leansdr::pipebuf<leansdr::cf32> (m_objScheduler, "PSK symbols", BUF_BASEBAND);
switch (m_objCfg.sampler)
{
case DATVDemodSettings::SAMP_NEAREST:
sampler = new leansdr::nearest_sampler<float>();
break;
case DATVDemodSettings::SAMP_LINEAR:
sampler = new leansdr::linear_sampler<float>();
break;
case DATVDemodSettings::SAMP_RRC:
{
if (m_objCfg.rrc_steps == 0)
{
// At least 64 discrete sampling points between symbols
m_objCfg.rrc_steps = std::max(1, (int)(64*m_objCfg.Fm / m_objCfg.Fs));
}
float Frrc = m_objCfg.Fs * m_objCfg.rrc_steps; // Sample freq of the RRC filter
float transition = (m_objCfg.Fm/2) * m_objCfg.rolloff;
int order = m_objCfg.rrc_rej * Frrc / (22*transition);
ncoeffs_sampler = leansdr::filtergen::root_raised_cosine(order, m_objCfg.Fm/Frrc, m_objCfg.rolloff, &coeffs_sampler);
sampler = new leansdr::fir_sampler<float,float>(ncoeffs_sampler, coeffs_sampler, m_objCfg.rrc_steps);
break;
}
default:
qCritical("DATVDemodSink::InitDATVFramework: Interpolator not implemented");
return;
}
m_objDemodulator = new leansdr::cstln_receiver<leansdr::f32, leansdr::eucl_ss>(
m_objScheduler,
sampler,
*p_preprocessed,
*p_symbols,
p_freq,
p_ss,
p_mer,
p_sampled);
if (m_objCfg.standard == DATVDemodSettings::DVB_S)
{
if ( m_objCfg.constellation != leansdr::cstln_lut<leansdr::eucl_ss, 256>::QPSK
&& m_objCfg.constellation != leansdr::cstln_lut<leansdr::eucl_ss, 256>::BPSK )
{
qWarning("DATVDemodSink::InitDATVFramework: non-standard constellation for DVB-S");
}
}
if (m_objCfg.standard == DATVDemodSettings::DVB_S2)
{
// For DVB-S2 testing only.
// Constellation should be determined from PL signalling.
qDebug("DATVDemodSink::InitDATVFramework: DVB-S2: Testing symbol sampler only.");
}
m_objDemodulator->cstln = make_dvbs_constellation(m_objCfg.constellation, m_objCfg.fec);
if (m_objCfg.hard_metric) {
m_objDemodulator->cstln->harden();
}
m_objDemodulator->set_omega(m_objCfg.Fs/m_objCfg.Fm);
//******** if ( m_objCfg.Ftune )
//{
// m_objDemodulator->set_freq(m_objCfg.Ftune/m_objCfg.Fs);
//}
if (m_objCfg.allow_drift) {
m_objDemodulator->set_allow_drift(true);
}
//******** -> if ( m_objCfg.viterbi )
if (m_objCfg.viterbi) {
m_objDemodulator->pll_adjustment /= 6;
}
m_objDemodulator->meas_decimation = decimation(m_objCfg.Fs, m_objCfg.Finfo);
// TRACKING FILTERS
if (r_cnr)
{
r_cnr->freq_tap = &m_objDemodulator->freq_tap;
r_cnr->tap_multiplier = 1.0 / decim;
}
//constellation
if (m_tvScreen)
{
qDebug("DATVDemodSink::InitDATVFramework: Register DVB constellation TV screen");
r_scope_symbols = new leansdr::datvconstellation<leansdr::f32>(m_objScheduler, *p_sampled, -128,128, nullptr, m_tvScreen);
r_scope_symbols->decimation = 1;
r_scope_symbols->cstln = &m_objDemodulator->cstln;
r_scope_symbols->calculate_cstln_points();
}
r_merMeter = new leansdr::datvmeter(m_objScheduler, *p_mer);
r_cnrMeter = new leansdr::datvmeter(m_objScheduler, *p_cnr);
// DECONVOLUTION AND SYNCHRONIZATION
p_bytes = new leansdr::pipebuf<leansdr::u8>(m_objScheduler, "bytes", BUF_BYTES);
r_deconv = nullptr;
//******** -> if ( m_objCfg.viterbi )
if (m_objCfg.viterbi)
{
if (m_objCfg.fec == leansdr::FEC23 && (m_objDemodulator->cstln->nsymbols == 4 || m_objDemodulator->cstln->nsymbols == 64)) {
m_objCfg.fec = leansdr::FEC46;
}
//To uncomment -> Linking Problem : undefined symbol: _ZN7leansdr21viterbi_dec_interfaceIhhiiE6updateEPiS2_
r = new leansdr::viterbi_sync(m_objScheduler, (*p_symbols), (*p_bytes), m_objDemodulator->cstln, m_objCfg.fec);
if (m_objCfg.fastlock) {
r->resync_period = 1;
}
}
else
{
r_deconv = make_deconvol_sync_simple(m_objScheduler, (*p_symbols), (*p_bytes), m_objCfg.fec);
r_deconv->fastlock = m_objCfg.fastlock;
}
//******* -> if ( m_objCfg.hdlc )
p_mpegbytes = new leansdr::pipebuf<leansdr::u8> (m_objScheduler, "mpegbytes", BUF_MPEGBYTES);
p_lock = new leansdr::pipebuf<int> (m_objScheduler, "lock", BUF_SLOW);
p_locktime = new leansdr::pipebuf<leansdr::u32> (m_objScheduler, "locktime", BUF_PACKETS);
r_sync_mpeg = new leansdr::mpeg_sync<leansdr::u8, 0>(m_objScheduler, *p_bytes, *p_mpegbytes, r_deconv, p_lock, p_locktime);
r_sync_mpeg->fastlock = m_objCfg.fastlock;
// DEINTERLEAVING
p_rspackets = new leansdr::pipebuf<leansdr::rspacket<leansdr::u8> >(m_objScheduler, "RS-enc packets", BUF_PACKETS);
r_deinter = new leansdr::deinterleaver<leansdr::u8>(m_objScheduler, *p_mpegbytes, *p_rspackets);
// REED-SOLOMON
p_vbitcount = new leansdr::pipebuf<int>(m_objScheduler, "Bits processed", BUF_PACKETS);
p_verrcount = new leansdr::pipebuf<int>(m_objScheduler, "Bits corrected", BUF_PACKETS);
p_rtspackets = new leansdr::pipebuf<leansdr::tspacket>(m_objScheduler, "rand TS packets", BUF_PACKETS);
r_rsdec = new leansdr::rs_decoder<leansdr::u8, 0>(m_objScheduler, *p_rspackets, *p_rtspackets, p_vbitcount, p_verrcount);
// BER ESTIMATION
/*
p_vber = new pipebuf<float> (m_objScheduler, "VBER", BUF_SLOW);
r_vber = new rate_estimator<float> (m_objScheduler, *p_verrcount, *p_vbitcount, *p_vber);
r_vber->sample_size = m_objCfg.Fm/2; // About twice per second, depending on CR
// Require resolution better than 2E-5
if ( r_vber->sample_size < 50000 )
{
r_vber->sample_size = 50000;
}
*/
// DERANDOMIZATION
p_tspackets = new leansdr::pipebuf<leansdr::tspacket>(m_objScheduler, "TS packets", BUF_PACKETS);
r_derand = new leansdr::derandomizer(m_objScheduler, *p_rtspackets, *p_tspackets);
// OUTPUT
if (m_settings.m_playerEnable) {
r_videoplayer = new leansdr::datvvideoplayer<leansdr::tspacket>(m_objScheduler, *p_tspackets, m_videoStream, &m_udpStream);
} else {
r_videoplayer = new leansdr::datvvideoplayer<leansdr::tspacket>(m_objScheduler, *p_tspackets, nullptr, &m_udpStream);
}
m_blnDVBInitialized = true;
}
//************ DVB-S2 Decoder ************
void DATVDemodSink::InitDATVS2Framework()
{
leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss> * objDemodulatorDVBS2;
m_blnDVBInitialized = false;
m_lngReadIQ = 0;
CleanUpDATVFramework();
qDebug() << "DATVDemodSink::InitDATVS2Framework:"
<< " Standard: " << m_settings.m_standard
<< " Symbol Rate: " << m_settings.m_symbolRate
<< " Modulation: " << m_settings.m_modulation
<< " Notch Filters: " << m_settings.m_notchFilters
<< " Allow Drift: " << m_settings.m_allowDrift
<< " Fast Lock: " << m_settings.m_fastLock
<< " Filter: " << m_settings.m_filter
<< " HARD METRIC: " << m_settings.m_hardMetric
<< " RollOff: " << m_settings.m_rollOff
<< " Viterbi: " << m_settings.m_viterbi
<< " Excursion: " << m_settings.m_excursion
<< " Channel sample rate: " << m_channelSampleRate
<< " Input sample rate: " << 2 * m_settings.m_symbolRate
<< " m_softLDPCMaxTrials: " << m_settings.m_softLDPCMaxTrials
<< " m_softLDPCToolPath: " << m_settings.m_softLDPCToolPath;
m_objCfg.standard = m_settings.m_standard;
m_objCfg.fec = (leansdr::code_rate) getLeanDVBCodeRateFromDATV(m_settings.m_fec);
m_objCfg.Fs = (float) 2 * m_settings.m_symbolRate; // maintained at twice the symbol rate
m_objCfg.Fm = (float) m_settings.m_symbolRate;
m_objCfg.fastlock = m_settings.m_fastLock;
m_objCfg.sampler = m_settings.m_filter;
m_objCfg.rolloff = m_settings.m_rollOff * 0.999f; //0...1 and correct 0.2 bug
m_objCfg.rrc_rej = (float) m_settings.m_excursion; //dB
m_objCfg.rrc_steps = 0; //auto
m_videoStream->resetTotalReceived();
m_udpStream.resetTotalReceived();
switch(m_settings.m_modulation)
{
case DATVDemodSettings::BPSK:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::BPSK;
break;
case DATVDemodSettings::QPSK:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::QPSK;
break;
case DATVDemodSettings::PSK8:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::PSK8;
break;
case DATVDemodSettings::APSK16:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::APSK16;
break;
case DATVDemodSettings::APSK32:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::APSK32;
break;
case DATVDemodSettings::APSK64E:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::APSK64E;
break;
case DATVDemodSettings::QAM16:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::QAM16;
break;
case DATVDemodSettings::QAM64:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::QAM64;
break;
case DATVDemodSettings::QAM256:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::QAM256;
break;
default:
m_objCfg.constellation = leansdr::cstln_lut<leansdr::llr_ss, 256>::BPSK;
break;
}
m_objCfg.allow_drift = m_settings.m_allowDrift;
m_objCfg.anf = m_settings.m_notchFilters;
m_objCfg.hard_metric = m_settings.m_hardMetric;
m_objCfg.sampler = m_settings.m_filter;
m_objCfg.viterbi = m_settings.m_viterbi;
// Min buffer size for baseband data
S2_MAX_SYMBOLS = (90*(1+360)+36*((360-1)/16));
BUF_BASEBAND = S2_MAX_SYMBOLS * 2 * (m_objCfg.Fs/m_objCfg.Fm) * m_objCfg.buf_factor;
// Min buffer size for IQ symbols
// cstln_receiver: writes in chunks of 128/omega symbols (margin 128)
// deconv_sync: reads at least 64+32
// A larger buffer improves performance significantly.
BUF_SYMBOLS = 1024 * m_objCfg.buf_factor;
// Min buffer size for misc measurements: 1
BUF_SLOW = m_objCfg.buf_factor;
// dvbs2 : Min buffer size for slots: 4 for deinterleaver
BUF_SLOTS = leansdr::modcod_info::MAX_SLOTS_PER_FRAME * m_objCfg.buf_factor;
BUF_FRAMES = m_objCfg.buf_factor;
// Min buffer size for TS packets: Up to 39 per BBFRAME
BUF_S2PACKETS = (leansdr::fec_info::KBCH_MAX/188/8+1) * m_objCfg.buf_factor;
m_lngExpectedReadIQ = BUF_BASEBAND;
m_objScheduler = new leansdr::scheduler();
//***************
p_rawiq = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "rawiq", BUF_BASEBAND);
p_rawiq_writer = new leansdr::pipewriter<leansdr::cf32>(*p_rawiq, m_RawIQMinWrite);
p_preprocessed = p_rawiq;
// NOTCH FILTER
if (m_objCfg.anf>0)
{
p_autonotched = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "autonotched", BUF_BASEBAND);
r_auto_notch = new leansdr::auto_notch<leansdr::f32>(m_objScheduler, *p_preprocessed, *p_autonotched, m_objCfg.anf, 0);
p_preprocessed = p_autonotched;
}
// FREQUENCY CORRECTION
//******** -> if ( m_objCfg.Fderot>0 )
// CNR ESTIMATION
p_cnr = new leansdr::pipebuf<leansdr::f32>(m_objScheduler, "cnr", BUF_SLOW);
if (m_objCfg.cnr == true)
{
r_cnr = new leansdr::cnr_fft<leansdr::f32>(m_objScheduler, *p_preprocessed, *p_cnr, m_objCfg.Fm/m_objCfg.Fs, 1024);
r_cnr->decimation = decimation(m_objCfg.Fs, 5); // 5 Hz
}
// FILTERING
//******** -> if ( m_objCfg.resample )
// DECIMATION
// (Unless already done in resampler)
//******** -> if ( !m_objCfg.resample && m_objCfg.decim>1 )
//Resampling FS
// Generic constellation receiver
p_freq = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "freq", BUF_SLOW);
p_ss = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "SS", BUF_SLOW);
p_mer = new leansdr::pipebuf<leansdr::f32> (m_objScheduler, "MER", BUF_SLOW);
switch (m_objCfg.sampler)
{
case DATVDemodSettings::SAMP_NEAREST:
sampler = new leansdr::nearest_sampler<float>();
break;
case DATVDemodSettings::SAMP_LINEAR:
sampler = new leansdr::linear_sampler<float>();
break;
case DATVDemodSettings::SAMP_RRC:
{
if (m_objCfg.rrc_steps == 0)
{
// At least 64 discrete sampling points between symbols
m_objCfg.rrc_steps = std::max(1, (int)(64*m_objCfg.Fm / m_objCfg.Fs));
}
float Frrc = m_objCfg.Fs * m_objCfg.rrc_steps; // Sample freq of the RRC filter
float transition = (m_objCfg.Fm/2) * m_objCfg.rolloff;
int order = m_objCfg.rrc_rej * Frrc / (22*transition);
ncoeffs_sampler = leansdr::filtergen::root_raised_cosine(order, m_objCfg.Fm/Frrc, m_objCfg.rolloff, &coeffs_sampler);
sampler = new leansdr::fir_sampler<float,float>(ncoeffs_sampler, coeffs_sampler, m_objCfg.rrc_steps);
break;
}
default:
qCritical("DATVDemodSink::InitDATVS2Framework: Interpolator not implemented");
return;
}
p_slots_dvbs2 = new leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > (m_objScheduler, "PL slots", BUF_SLOTS);
p_cstln = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "cstln", BUF_BASEBAND);
p_cstln_pls = new leansdr::pipebuf<leansdr::cf32>(m_objScheduler, "PLS cstln", BUF_BASEBAND);
p_framelock = new leansdr::pipebuf<int>(m_objScheduler, "frame lock", BUF_SLOW);
m_objDemodulatorDVBS2 = new leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss>(
m_objScheduler,
sampler,
*p_preprocessed,
*(leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > *) p_slots_dvbs2,
/* p_freq */ nullptr,
/* p_ss */ nullptr,
p_mer,
p_cstln,
/* p_cstln_pls */ nullptr,
/*p_iqsymbols*/ nullptr,
/* p_framelock */nullptr
);
objDemodulatorDVBS2 = (leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss> *) m_objDemodulatorDVBS2;
objDemodulatorDVBS2->omega0 = m_objCfg.Fs/m_objCfg.Fm;
//objDemodulatorDVBS2->mu=1;
m_objCfg.Ftune=0.0f;
objDemodulatorDVBS2->Ftune = m_objCfg.Ftune / m_objCfg.Fm;
/*
demod.strongpls = cfg.strongpls;
*/
objDemodulatorDVBS2->meas_decimation = decimation(m_objCfg.Fs, m_objCfg.Finfo);
objDemodulatorDVBS2->strongpls = false;
objDemodulatorDVBS2->cstln = make_dvbs2_constellation(m_objCfg.constellation, m_objCfg.fec);
m_cstlnSetByModcod = false;
//constellation
if (m_tvScreen)
{
qDebug("DATVDemodSink::InitDATVS2Framework: Register DVBS 2 TVSCREEN");
r_scope_symbols_dvbs2 = new leansdr::datvdvbs2constellation<leansdr::f32>(m_objScheduler, *p_cstln /* *p_sampled */ /* *p_cstln */, -128,128, nullptr, m_tvScreen);
r_scope_symbols_dvbs2->decimation = 1;
r_scope_symbols_dvbs2->cstln = (leansdr::cstln_base**) &objDemodulatorDVBS2->cstln;
r_scope_symbols_dvbs2->calculate_cstln_points();
}
r_merMeter = new leansdr::datvmeter(m_objScheduler, *p_mer);
r_cnrMeter = new leansdr::datvmeter(m_objScheduler, *p_cnr);
// Bit-flipping mode.
// Deinterleave into hard bits.
p_bbframes = new leansdr::pipebuf<leansdr::bbframe>(m_objScheduler, "BB frames", BUF_FRAMES);
// p_fecframes = new leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> >(m_objScheduler, "FEC frames", BUF_FRAMES);
// p_s2_deinterleaver = new leansdr::s2_deinterleaver<leansdr::llr_ss,leansdr::hard_sb>(
// m_objScheduler,
// *(leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > *) p_slots_dvbs2,
// *(leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> > * ) p_fecframes
// );
p_vbitcount= new leansdr::pipebuf<int>(m_objScheduler, "Bits processed", BUF_S2PACKETS);
p_verrcount = new leansdr::pipebuf<int>(m_objScheduler, "Bits corrected", BUF_S2PACKETS);
bool commandFileValid = false;
if (QFileInfo::exists(m_settings.m_softLDPCToolPath))
{
QFileInfo fileInfo = QFileInfo(m_settings.m_softLDPCToolPath);
commandFileValid = fileInfo.isExecutable();
}
if (m_settings.m_softLDPC /*&& commandFileValid*/)
{
#if 0
// Doesn't work...
// Soft LDPC decoder mode.
// Deinterleave into soft bits.
p_fecframes = new leansdr::pipebuf<leansdr::fecframe<leansdr::llr_sb> >(m_objScheduler, "FEC frames", BUF_FRAMES);
p_s2_deinterleaver = new leansdr::s2_deinterleaver<leansdr::llr_ss, leansdr::llr_sb>(
m_objScheduler,
*(leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > *) p_slots_dvbs2,
*(leansdr::pipebuf< leansdr::fecframe<leansdr::llr_sb> > * ) p_fecframes
);
r_fecdecsoft = new leansdr::s2_fecdec_soft<leansdr::llr_t,leansdr::llr_sb>(
m_objScheduler, *(leansdr::pipebuf< leansdr::fecframe<leansdr::llr_sb> > * ) p_fecframes,
*(leansdr::pipebuf<leansdr::bbframe> *) p_bbframes,
m_modcodModulation < 0 ? 0 : m_modcodModulation,
true, 5,
p_vbitcount,
p_verrcount
);
#else
// External LDPC decoder mode.
// Deinterleave into soft bits.
// TBD Latency
QByteArray ba = m_settings.m_softLDPCToolPath.toLocal8Bit();
const char *c_str2 = ba.data();
p_fecframes = new leansdr::pipebuf<leansdr::fecframe<leansdr::llr_sb> >(m_objScheduler, "FEC frames", BUF_FRAMES);
p_s2_deinterleaver = new leansdr::s2_deinterleaver<leansdr::llr_ss, leansdr::llr_sb>(
m_objScheduler,
*(leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > *) p_slots_dvbs2,
*(leansdr::pipebuf< leansdr::fecframe<leansdr::llr_sb> > *) p_fecframes
);
// Decode FEC-protected frames into plain BB frames.
r_fecdechelper = new leansdr::s2_fecdec_helper<leansdr::llr_t, leansdr::llr_sb>(
m_objScheduler,
*(leansdr::pipebuf< leansdr::fecframe<leansdr::llr_sb> > *) p_fecframes,
*(leansdr::pipebuf<leansdr::bbframe> *) p_bbframes,
c_str2,
p_vbitcount,
p_verrcount)
;
leansdr::s2_fecdec_helper<leansdr::llr_t, leansdr::llr_sb> *fecdec = (leansdr::s2_fecdec_helper<leansdr::llr_t, leansdr::llr_sb> *) r_fecdechelper;
const int nhelpers = 2;
fecdec->nhelpers = nhelpers;
fecdec->must_buffer = false;
fecdec->max_trials = m_settings.m_softLDPCMaxTrials;
#endif
}
else
{
// Bit-flipping mode.
// Deinterleave into hard bits.
p_fecframes = new leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> >(m_objScheduler, "FEC frames", BUF_FRAMES);
p_s2_deinterleaver = new leansdr::s2_deinterleaver<leansdr::llr_ss,leansdr::hard_sb>(
m_objScheduler,
*(leansdr::pipebuf< leansdr::plslot<leansdr::llr_ss> > *) p_slots_dvbs2,
*(leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> > * ) p_fecframes
);
r_fecdec = new leansdr::s2_fecdec<bool, leansdr::hard_sb>(
m_objScheduler,
*(leansdr::pipebuf< leansdr::fecframe<leansdr::hard_sb> > * ) p_fecframes,
*(leansdr::pipebuf<leansdr::bbframe> *) p_bbframes,
p_vbitcount,
p_verrcount
);
leansdr::s2_fecdec<bool, leansdr::hard_sb> *fecdec = (leansdr::s2_fecdec<bool, leansdr::hard_sb> * ) r_fecdec;
fecdec->bitflips=m_settings.m_maxBitflips;
}
// Deframe BB frames to TS packets
p_lock = new leansdr::pipebuf<int> (m_objScheduler, "lock", BUF_SLOW);
p_locktime = new leansdr::pipebuf<leansdr::u32> (m_objScheduler, "locktime", BUF_S2PACKETS);
p_tspackets = new leansdr::pipebuf<leansdr::tspacket>(m_objScheduler, "TS packets", BUF_S2PACKETS);
p_deframer = new leansdr::s2_deframer(m_objScheduler,*(leansdr::pipebuf<leansdr::bbframe> *) p_bbframes, *p_tspackets, p_lock, p_locktime);
/*
if ( cfg.fd_gse >= 0 ) deframer.fd_gse = cfg.fd_gse;
*/
// OUTPUT
if (m_settings.m_playerEnable) {
r_videoplayer = new leansdr::datvvideoplayer<leansdr::tspacket>(m_objScheduler, *p_tspackets, m_videoStream, &m_udpStream);
} else {
r_videoplayer = new leansdr::datvvideoplayer<leansdr::tspacket>(m_objScheduler, *p_tspackets, nullptr, &m_udpStream);
}
m_blnDVBInitialized = true;
}
void DATVDemodSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
{
float fltI;
float fltQ;
fftfilt::cmplx *objRF;
int intRFOut;
int lngWritable=0;
leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss> *objDemodulatorDVBS2 =
(leansdr::s2_frame_receiver<leansdr::f32, leansdr::llr_ss> *) m_objDemodulatorDVBS2;
// DVBS2: Track change of constellation via MODCOD
if ((m_settings.m_standard == DATVDemodSettings::DVB_S2) && objDemodulatorDVBS2)
{
if (objDemodulatorDVBS2->cstln->m_setByModcod && !m_cstlnSetByModcod)
{
qDebug("DATVDemodSink::feed: change by MODCOD detected");
if (r_scope_symbols_dvbs2) {
r_scope_symbols_dvbs2->calculate_cstln_points();
}
if (getMessageQueueToGUI())
{
DATVDemodReport::MsgReportModcodCstlnChange *msg = DATVDemodReport::MsgReportModcodCstlnChange::create(
DATVDemodSettings::getModulationFromLeanDVBCode(objDemodulatorDVBS2->cstln->m_typeCode),
DATVDemodSettings::getCodeRateFromLeanDVBCode(objDemodulatorDVBS2->cstln->m_rateCode)
);
getMessageQueueToGUI()->push(msg);
}
if (
(
(m_modcodModulation != objDemodulatorDVBS2->m_modcodType) &&
(m_modcodModulation >= 0) &&
(objDemodulatorDVBS2->m_modcodType >= 0)
) ||
(
(m_modcodCodeRate != objDemodulatorDVBS2->m_modcodRate) &&
(m_modcodCodeRate >= 0) &&
(objDemodulatorDVBS2->m_modcodRate >= 0)
)
)
{
m_blnNeedConfigUpdate = true;
}
}
m_cstlnSetByModcod = objDemodulatorDVBS2->cstln->m_setByModcod;
m_modcodModulation = objDemodulatorDVBS2->m_modcodType;
m_modcodCodeRate = objDemodulatorDVBS2->m_modcodRate;
} // DVBS2: Track change of constellation via MODCOD
//********** init leandvb framework **********
if (m_blnNeedConfigUpdate)
{
QMutexLocker mlock(&m_mutex);
stopVideo();
qDebug("DATVDemodSink::feed: Settings applied. Standard : %d...", m_settings.m_standard);
m_blnNeedConfigUpdate = false;
if(m_settings.m_standard==DATVDemodSettings::DVB_S2)
{
qDebug("DATVDemodSink::feed: init DVBS-2");
InitDATVS2Framework();
}
else
{
qDebug("DATVDemodSink::feed: init DVBS");
InitDATVFramework();
}
}
//********** Bis repetita : Let's rock and roll buddy ! **********
for (SampleVector::const_iterator it = begin; it != end; ++it /* ++it **/)
{
Complex c(it->real(), it->imag());
if (m_interpolatorDistance < 1.0f) // interpolate - should never get there...
{
Complex ci;
c *= m_nco.nextIQ();
while (!m_interpolator.interpolate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
}
else // decimate
{
Complex ci;
c *= m_nco.nextIQ();
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
}
} // Samples for loop
}
void DATVDemodSink::processOneSample(Complex &ci)
{
m_objMagSqAverage(norm(ci));
if (m_blnDVBInitialized
&& (p_rawiq_writer != nullptr)
&& (m_objScheduler != nullptr))
{
p_rawiq_writer->write(ci);
m_lngReadIQ++;
int writable = p_rawiq_writer->writable();
//Leave +1 by safety
//if(((m_lngReadIQ+1)>=lngWritable) || (m_lngReadIQ>=768))
if ((m_lngReadIQ + 1) >= writable)
{
m_objScheduler->step();
m_lngReadIQ = 0;
p_rawiq_writer->reset(m_RawIQMinWrite);
}
}
}
void DATVDemodSink::applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, bool force)
{
qDebug() << "DATVDemodSink::applyChannelSettings:"
<< " channelSampleRate: " << channelSampleRate
<< " channelFrequencyOffset: " << channelFrequencyOffset;
bool callApplySettings = false;
if ((m_settings.m_centerFrequency != channelFrequencyOffset) ||
(m_channelSampleRate != channelSampleRate) || force)
{
m_nco.setFreq(-(float) channelFrequencyOffset, (float) channelSampleRate);
qDebug("DATVDemodSink::applyChannelSettings: NCO: IF: %d <> TF: %d ISR: %d",
channelFrequencyOffset, m_settings.m_centerFrequency, channelSampleRate);
callApplySettings = true;
}
if ((m_channelSampleRate != channelSampleRate) || force)
{
m_interpolator.create(m_interpolatorPhaseSteps, channelSampleRate, m_settings.m_rfBandwidth / 2.2, m_interpolatorTapsPerPhase);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) channelSampleRate / (Real) (2 * m_settings.m_symbolRate);
qDebug("DATVDemodSink::applyChannelSettings: m_interpolatorDistance: %f", m_interpolatorDistance);
}
m_channelSampleRate = channelSampleRate;
m_settings.m_centerFrequency = channelFrequencyOffset;
if (callApplySettings) {
applySettings(m_settings, true);
}
}
void DATVDemodSink::applySettings(const DATVDemodSettings& settings, bool force)
{
QString msg = QObject::tr("DATVDemodSink::applySettings: force: %1").arg(force);
settings.debug(msg);
qDebug("DATVDemodSink::applySettings: m_channelSampleRate: %d", m_channelSampleRate);
if (m_channelSampleRate == 0) {
return;
}
if ((settings.m_audioVolume) != (m_settings.m_audioVolume) || force)
{
if (m_videoRender) {
m_videoRender->setAudioVolume(settings.m_audioVolume);
}
}
if ((settings.m_audioMute) != (m_settings.m_audioMute) || force)
{
if (m_videoRender) {
m_videoRender->setAudioMute(settings.m_audioMute);
}
}
if ((settings.m_videoMute) != (m_settings.m_videoMute) || force)
{
if (m_videoRender) {
m_videoRender->setVideoMute(settings.m_videoMute);
}
}
if ((m_settings.m_rfBandwidth != settings.m_rfBandwidth)
|| (m_settings.m_symbolRate != settings.m_symbolRate)
|| (m_settings.m_centerFrequency != settings.m_centerFrequency) || force)
{
m_interpolator.create(m_interpolatorPhaseSteps, m_channelSampleRate, settings.m_rfBandwidth / 2.2, m_interpolatorTapsPerPhase);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) m_channelSampleRate / (Real) (2 * settings.m_symbolRate);
m_nco.setFreq(-(float) settings.m_centerFrequency, (float) m_channelSampleRate);
}
if ((m_settings.m_udpTS != settings.m_udpTS) || force) {
m_udpStream.setActive(settings.m_udpTS);
}
if ((m_settings.m_udpTSAddress != settings.m_udpTSAddress) || force) {
m_udpStream.setAddress(settings.m_udpTSAddress);
}
if ((m_settings.m_udpTSPort != settings.m_udpTSPort) || force) {
m_udpStream.setPort(settings.m_udpTSPort);
}
if (m_settings.isDifferent(settings) || force) {
m_blnNeedConfigUpdate = true;
}
m_settings = settings;
}
int DATVDemodSink::getLeanDVBCodeRateFromDATV(DATVDemodSettings::DATVCodeRate datvCodeRate)
{
if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC12) {
return (int) leansdr::code_rate::FEC12;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC13) {
return (int) leansdr::code_rate::FEC13;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC14) {
return (int) leansdr::code_rate::FEC14;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC23) {
return (int) leansdr::code_rate::FEC23;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC25) {
return (int) leansdr::code_rate::FEC25;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC34) {
return (int) leansdr::code_rate::FEC34;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC35) {
return (int) leansdr::code_rate::FEC35;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC45) {
return (int) leansdr::code_rate::FEC45;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC46) {
return (int) leansdr::code_rate::FEC46;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC56) {
return (int) leansdr::code_rate::FEC56;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC78) {
return (int) leansdr::code_rate::FEC78;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC89) {
return (int) leansdr::code_rate::FEC89;
} else if (datvCodeRate == DATVDemodSettings::DATVCodeRate::FEC910) {
return (int) leansdr::code_rate::FEC910;
} else {
return -1;
}
}
int DATVDemodSink::getLeanDVBModulationFromDATV(DATVDemodSettings::DATVModulation datvModulation)
{
if (datvModulation == DATVDemodSettings::DATVModulation::APSK16) {
return (int) leansdr::cstln_base::predef::APSK16;
} else if (datvModulation == DATVDemodSettings::DATVModulation::APSK32) {
return (int) leansdr::cstln_base::predef::APSK32;
} else if (datvModulation == DATVDemodSettings::DATVModulation::APSK64E) {
return (int) leansdr::cstln_base::predef::APSK64E;
} else if (datvModulation == DATVDemodSettings::DATVModulation::BPSK) {
return (int) leansdr::cstln_base::predef::BPSK;
} else if (datvModulation == DATVDemodSettings::DATVModulation::PSK8) {
return (int) leansdr::cstln_base::predef::PSK8;
} else if (datvModulation == DATVDemodSettings::DATVModulation::QAM16) {
return (int) leansdr::cstln_base::predef::QAM16;
} else if (datvModulation == DATVDemodSettings::DATVModulation::QAM64) {
return (int) leansdr::cstln_base::predef::QAM64;
} else if (datvModulation == DATVDemodSettings::DATVModulation::QAM256) {
return (int) leansdr::cstln_base::predef::QAM256;
} else if (datvModulation == DATVDemodSettings::DATVModulation::QPSK) {
return (int) leansdr::cstln_base::predef::QPSK;
} else {
return -1;
}
}
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