mirror of
https://github.com/f4exb/sdrangel.git
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346 lines
12 KiB
C++
346 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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// written by Christian Daniel //
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// Copyright (C) 2015-2019, 2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QStandardPaths>
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#include <QDir>
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#include <QDateTime>
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#include "channel/channelapi.h"
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#include "dsp/wavfilerecord.h"
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#include "util/messagequeue.h"
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#include "util/ft8message.h"
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#include "util/maidenhead.h"
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#include "maincore.h"
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#include "SWGMapItem.h"
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#include "ft8demodsettings.h"
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#include "ft8demodworker.h"
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FT8DemodWorker::FT8Callback::FT8Callback(
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const QDateTime& periodTS,
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qint64 baseFrequency,
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FT8::Packing& packing,
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const QString& name
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) :
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m_packing(packing),
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m_periodTS(periodTS),
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m_name(name),
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m_validCallsigns(nullptr)
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{
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m_msgReportFT8Messages = MsgReportFT8Messages::create();
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m_msgReportFT8Messages->setBaseFrequency(baseFrequency);
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}
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int FT8DemodWorker::FT8Callback::hcb(
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int *a91,
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float hz0,
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float off,
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const char *comment,
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float snr,
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int pass,
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int correct_bits
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)
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{
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std::string call1;
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std::string call2;
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std::string loc;
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std::string type;
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std::string msg = m_packing.unpack(a91, call1, call2, loc, type);
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cycle_mu.lock();
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if (cycle_already.count(msg) > 0)
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{
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// already decoded this message on this cycle
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cycle_mu.unlock();
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return 1; // 1 => already seen, don't subtract.
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}
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cycle_already[msg] = true;
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QString call2Str(call2.c_str());
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QString info(comment);
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if (m_validCallsigns && info.startsWith("OSD") && !m_validCallsigns->contains(call2Str))
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{
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cycle_mu.unlock();
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return 2; // leave without reporting. Set as new decode.
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}
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QList<FT8Message>& ft8Messages = m_msgReportFT8Messages->getFT8Messages();
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FT8Message baseMessage{
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m_periodTS,
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QString(type.c_str()),
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pass,
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(int) snr,
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correct_bits,
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off - 0.5f,
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hz0,
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QString(call1.c_str()).simplified(),
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call2Str,
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QString(loc.c_str()).simplified(),
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info
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};
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// DXpedition packs two messages in one with the two callees in the first call area separated by a semicolon
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if (type == "0.1")
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{
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QStringList callees = QString(call1.c_str()).simplified().split(";");
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for (int i = 0; i < 2; i++)
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{
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baseMessage.call1 = callees[i];
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if (i == 0) { // first is with RR73 greetings in locator area
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baseMessage.loc = "RR73";
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}
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ft8Messages.push_back(baseMessage);
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}
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}
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else
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{
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ft8Messages.push_back(baseMessage);
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}
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cycle_mu.unlock();
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// qDebug("FT8DemodWorker::FT8Callback::hcb: %6.3f %d %3d %3d %5.2f %6.1f %s (%s)",
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// m_baseFrequency / 1000000.0,
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// pass,
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// (int)snr,
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// correct_bits,
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// off - 0.5,
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// hz0,
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// msg.c_str(),
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// comment
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// );
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return 2; // 2 => new decode, do subtract.
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}
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QString FT8DemodWorker::FT8Callback::get_name()
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{
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return m_name;
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}
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FT8DemodWorker::FT8DemodWorker() :
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m_recordSamples(false),
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m_nbDecoderThreads(6),
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m_decoderTimeBudget(0.5),
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m_useOSD(false),
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m_osdDepth(0),
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m_osdLDPCThreshold(70),
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m_verifyOSD(false),
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m_lowFreq(200),
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m_highFreq(3000),
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m_invalidSequence(true),
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m_baseFrequency(0),
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m_reportingMessageQueue(nullptr),
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m_channel(nullptr)
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{
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QString relPath = "ft8/save";
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QDir dir(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation));
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dir.mkpath(relPath);
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m_samplesPath = dir.absolutePath() + "/" + relPath;
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qDebug("FT8DemodWorker::FT8DemodWorker: samples path: %s", qPrintable(m_samplesPath));
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relPath = "ft8/logs";
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m_logsPath = dir.absolutePath() + "/" + relPath;
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qDebug("FT8DemodWorker::FT8DemodWorker: logs path: %s", qPrintable(m_logsPath));
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}
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FT8DemodWorker::~FT8DemodWorker()
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{}
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void FT8DemodWorker::processBuffer(int16_t *buffer, QDateTime periodTS)
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{
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qDebug("FT8DemodWorker::processBuffer: %6.3f %s %d:%f [%d:%d]",
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m_baseFrequency / 1000000.0,
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qPrintable(periodTS.toString("yyyy-MM-dd HH:mm:ss")),
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m_nbDecoderThreads,
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m_decoderTimeBudget,
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m_lowFreq,
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m_highFreq
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);
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if (m_invalidSequence)
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{
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qDebug("FT8DemodWorker::processBuffer: invalid sequence");
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m_invalidSequence = false;
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return;
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}
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QString channelReference = "d0c0"; // default
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if (m_channel) {
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channelReference = tr("d%1c%2").arg(m_channel->getDeviceSetIndex()).arg(m_channel->getIndexInDeviceSet());
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}
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int hints[2] = { 2, 0 }; // CQ
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FT8Callback ft8Callback(periodTS, m_baseFrequency, m_packing, channelReference);
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ft8Callback.setValidCallsigns((m_useOSD && m_verifyOSD) ? &m_validCallsigns : nullptr);
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m_ft8Decoder.getParams().nthreads = m_nbDecoderThreads;
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m_ft8Decoder.getParams().use_osd = m_useOSD ? 1 : 0;
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m_ft8Decoder.getParams().osd_depth = m_osdDepth;
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m_ft8Decoder.getParams().osd_ldpc_thresh = m_osdLDPCThreshold;
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std::vector<float> samples(15*FT8DemodSettings::m_ft8SampleRate);
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std::transform(
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buffer,
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buffer + (15*FT8DemodSettings::m_ft8SampleRate),
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samples.begin(),
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[](const int16_t& s) -> float { return s / 32768.0f; }
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);
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m_ft8Decoder.entry(
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samples.data(),
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samples.size(),
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0.5 * FT8DemodSettings::m_ft8SampleRate,
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FT8DemodSettings::m_ft8SampleRate,
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m_lowFreq,
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m_highFreq,
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hints,
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hints,
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m_decoderTimeBudget,
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m_decoderTimeBudget,
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&ft8Callback,
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0,
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(struct FT8::cdecode *) nullptr
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);
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m_ft8Decoder.wait(m_decoderTimeBudget + 1.0); // add one second to budget to force quit threads
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qDebug("FT8DemodWorker::processBuffer: done: at %6.3f %d messages",
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m_baseFrequency / 1000000.0, (int)ft8Callback.getReportMessage()->getFT8Messages().size());
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if (m_reportingMessageQueue) {
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m_reportingMessageQueue->push(new MsgReportFT8Messages(*ft8Callback.getReportMessage()));
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}
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QList<ObjectPipe*> mapPipes;
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MainCore::instance()->getMessagePipes().getMessagePipes((const QObject*) m_channel, "mapitems", mapPipes);
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const QList<FT8Message>& ft8Messages = ft8Callback.getReportMessage()->getFT8Messages();
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std::ofstream logFile;
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double baseFrequencyMHz = m_baseFrequency/1000000.0;
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for (const auto& ft8Message : ft8Messages)
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{
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if (m_logMessages)
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{
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if (!logFile.is_open())
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{
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QString logFileName(tr("%1_%2.txt").arg(periodTS.toString("yyyyMMdd")).arg(channelReference));
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QFileInfo lfi(QDir(m_logsPath), logFileName);
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QString logFilePath = lfi.absoluteFilePath();
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if (lfi.exists()) {
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logFile.open(logFilePath.toStdString(), std::ios::app);
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} else {
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logFile.open(logFilePath.toStdString());
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}
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}
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if (ft8Message.call1 == "UNK") {
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continue;
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}
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QString logMessage = QString("%1 %2 Rx FT8 %3 %4 %5 %6 %7 %8")
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.arg(periodTS.toString("yyyyMMdd_HHmmss"))
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.arg(baseFrequencyMHz, 9, 'f', 3)
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.arg(ft8Message.snr, 6)
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.arg(ft8Message.dt, 4, 'f', 1)
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.arg(ft8Message.df, 4, 'f', 0)
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.arg(ft8Message.call1)
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.arg(ft8Message.call2)
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.arg(ft8Message.loc);
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logMessage.remove(0, 2);
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logFile << logMessage.toStdString() << std::endl;
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}
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if (mapPipes.size() > 0)
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{
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// If message contains a Maidenhead locator, display caller on Map feature
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float latitude, longitude;
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if ((ft8Message.loc.size() == 4) && (ft8Message.loc != "RR73") && Maidenhead::fromMaidenhead(ft8Message.loc, latitude, longitude))
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{
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QString text = QString("%1\nMode: FT8\nFrequency: %2 Hz\nLocator: %3\nSNR: %4\nLast heard: %5")
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.arg(ft8Message.call2)
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.arg(baseFrequencyMHz*1000000 + ft8Message.df)
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.arg(ft8Message.loc)
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.arg(ft8Message.snr)
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.arg(periodTS.toString("dd MMM yyyy HH:mm:ss"));
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for (const auto& pipe : mapPipes)
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{
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MessageQueue *messageQueue = qobject_cast<MessageQueue*>(pipe->m_element);
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SWGSDRangel::SWGMapItem *swgMapItem = new SWGSDRangel::SWGMapItem();
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swgMapItem->setName(new QString(ft8Message.call2));
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swgMapItem->setLatitude(latitude);
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swgMapItem->setLongitude(longitude);
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swgMapItem->setAltitude(0);
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swgMapItem->setAltitudeReference(1); // CLAMP_TO_GROUND
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swgMapItem->setPositionDateTime(new QString(QDateTime::currentDateTime().toString(Qt::ISODateWithMs)));
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swgMapItem->setImageRotation(0);
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swgMapItem->setText(new QString(text));
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swgMapItem->setImage(new QString("antenna.png"));
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swgMapItem->setModel(new QString("antenna.glb"));
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swgMapItem->setModelAltitudeOffset(0.0);
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swgMapItem->setLabel(new QString(ft8Message.call2));
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swgMapItem->setLabelAltitudeOffset(4.5);
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swgMapItem->setFixedPosition(false);
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swgMapItem->setOrientation(0);
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swgMapItem->setHeading(0);
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MainCore::MsgMapItem *msg = MainCore::MsgMapItem::create((const QObject*) m_channel, swgMapItem);
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messageQueue->push(msg);
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}
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}
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}
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if (m_verifyOSD && !ft8Message.decoderInfo.startsWith("OSD"))
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{
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if ((ft8Message.type == "1") || (ft8Message.type == "2"))
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{
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if (!ft8Message.call2.startsWith("<")) {
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m_validCallsigns.insert(ft8Message.call2);
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}
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if (!ft8Message.call1.startsWith("CQ") && !ft8Message.call1.startsWith("<")) {
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m_validCallsigns.insert(ft8Message.call1);
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}
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}
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}
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}
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delete ft8Callback.getReportMessage();
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if (m_recordSamples)
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{
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WavFileRecord *wavFileRecord = new WavFileRecord(FT8DemodSettings::m_ft8SampleRate);
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QFileInfo wfi(QDir(m_samplesPath), periodTS.toString("yyyyMMdd_HHmmss"));
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QString wpath = wfi.absoluteFilePath();
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qDebug("FT8DemodWorker::processBuffer: WAV file: %s.wav", qPrintable(wpath));
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wavFileRecord->setFileName(wpath);
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wavFileRecord->setFileBaseIsFileName(true);
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wavFileRecord->setMono(true);
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wavFileRecord->startRecording();
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wavFileRecord->writeMono(buffer, 15*FT8DemodSettings::m_ft8SampleRate);
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wavFileRecord->stopRecording();
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delete wavFileRecord;
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}
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}
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