mirror of
https://github.com/f4exb/sdrangel.git
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205 lines
7.3 KiB
C++
205 lines
7.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019-2021 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// Copyright (C) 2020-2021, 2023 Jon Beniston, M7RCE <jon@beniston.com> //
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// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
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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 <QDebug>
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#include "dsp/dspcommands.h"
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#include "dsp/downchannelizer.h"
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#include "freqscannerbaseband.h"
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#include "freqscanner.h"
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MESSAGE_CLASS_DEFINITION(FreqScannerBaseband::MsgConfigureFreqScannerBaseband, Message)
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FreqScannerBaseband::FreqScannerBaseband(FreqScanner *freqScanner) :
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m_freqScanner(freqScanner),
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m_sink(freqScanner),
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m_messageQueueToGUI(nullptr)
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{
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qDebug("FreqScannerBaseband::FreqScannerBaseband");
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m_sampleFifo.setSize(SampleSinkFifo::getSizePolicy(48000));
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QObject::connect(
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&m_sampleFifo,
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&SampleSinkFifo::dataReady,
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this,
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&FreqScannerBaseband::handleData,
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Qt::QueuedConnection
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);
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m_channelizer = new DownChannelizer(&m_sink);
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m_channelSampleRate = 0;
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m_scannerSampleRate = 0;
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
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}
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FreqScannerBaseband::~FreqScannerBaseband()
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{
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m_inputMessageQueue.clear();
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delete m_channelizer;
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}
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void FreqScannerBaseband::reset()
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{
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QMutexLocker mutexLocker(&m_mutex);
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m_inputMessageQueue.clear();
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m_sampleFifo.reset();
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m_channelSampleRate = 0;
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}
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void FreqScannerBaseband::setChannel(ChannelAPI *channel)
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{
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m_sink.setChannel(channel);
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}
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void FreqScannerBaseband::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
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{
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m_sampleFifo.write(begin, end);
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}
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void FreqScannerBaseband::handleData()
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{
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QMutexLocker mutexLocker(&m_mutex);
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while ((m_sampleFifo.fill() > 0) && (m_inputMessageQueue.size() == 0))
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{
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SampleVector::iterator part1begin;
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SampleVector::iterator part1end;
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SampleVector::iterator part2begin;
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SampleVector::iterator part2end;
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std::size_t count = m_sampleFifo.readBegin(m_sampleFifo.fill(), &part1begin, &part1end, &part2begin, &part2end);
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// first part of FIFO data
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if (part1begin != part1end) {
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m_channelizer->feed(part1begin, part1end);
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}
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// second part of FIFO data (used when block wraps around)
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if (part2begin != part2end) {
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m_channelizer->feed(part2begin, part2end);
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}
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m_sampleFifo.readCommit((unsigned int) count);
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}
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}
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void FreqScannerBaseband::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != nullptr)
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{
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if (handleMessage(*message)) {
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delete message;
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}
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}
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}
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bool FreqScannerBaseband::handleMessage(const Message& cmd)
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{
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if (MsgConfigureFreqScannerBaseband::match(cmd))
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{
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QMutexLocker mutexLocker(&m_mutex);
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MsgConfigureFreqScannerBaseband& cfg = (MsgConfigureFreqScannerBaseband&) cmd;
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qDebug() << "FreqScannerBaseband::handleMessage: MsgConfigureFreqScannerBaseband";
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applySettings(cfg.getSettings(), cfg.getSettingsKeys(), cfg.getForce());
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return true;
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}
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else if (DSPSignalNotification::match(cmd))
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{
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QMutexLocker mutexLocker(&m_mutex);
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DSPSignalNotification& notif = (DSPSignalNotification&) cmd;
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qDebug() << "FreqScannerBaseband::handleMessage: DSPSignalNotification: basebandSampleRate: " << notif.getSampleRate();
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setBasebandSampleRate(notif.getSampleRate());
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m_sampleFifo.setSize(SampleSinkFifo::getSizePolicy(notif.getSampleRate()));
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if (m_channelSampleRate != m_channelizer->getChannelSampleRate()) {
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m_channelSampleRate = m_channelizer->getChannelSampleRate();
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}
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m_sink.setCenterFrequency(notif.getCenterFrequency());
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return true;
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}
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else
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{
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return false;
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}
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}
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void FreqScannerBaseband::applySettings(const FreqScannerSettings& settings, const QStringList& settingsKeys, bool force)
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{
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if (settingsKeys.contains("channelBandwidth") || settingsKeys.contains("inputFrequencyOffset") || force)
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{
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int basebandSampleRate = m_channelizer->getBasebandSampleRate();
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if ((basebandSampleRate != 0) && (settings.m_channelBandwidth != 0)) {
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calcScannerSampleRate(basebandSampleRate, settings.m_channelBandwidth, settings.m_inputFrequencyOffset);
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}
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}
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m_sink.applySettings(settings, settingsKeys, force);
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if (force) {
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m_settings = settings;
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} else {
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m_settings.applySettings(settingsKeys, settings);
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}
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}
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int FreqScannerBaseband::getChannelSampleRate() const
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{
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return m_channelizer->getChannelSampleRate();
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}
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void FreqScannerBaseband::setBasebandSampleRate(int sampleRate)
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{
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m_channelizer->setBasebandSampleRate(sampleRate);
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if ((sampleRate != 0) && (m_settings.m_channelBandwidth != 0)) {
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calcScannerSampleRate(sampleRate, m_settings.m_channelBandwidth, m_settings.m_inputFrequencyOffset);
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}
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}
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void FreqScannerBaseband::calcScannerSampleRate(int basebandSampleRate, float rfBandwidth, int inputFrequencyOffset)
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{
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int fftSize;
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int binsPerChannel;
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m_freqScanner->calcScannerSampleRate(rfBandwidth, basebandSampleRate, m_scannerSampleRate, fftSize, binsPerChannel);
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m_channelizer->setChannelization(m_scannerSampleRate, inputFrequencyOffset);
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m_channelSampleRate = m_channelizer->getChannelSampleRate();
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m_sink.applyChannelSettings(m_channelSampleRate, m_channelizer->getChannelFrequencyOffset(), m_scannerSampleRate, fftSize, binsPerChannel);
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qDebug() << "FreqScannerBaseband::calcScannerSampleRate"
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<< "basebandSampleRate:" << basebandSampleRate
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<< "channelSampleRate:" << m_channelSampleRate
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<< "scannerSampleRate:" << m_scannerSampleRate
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<< "rfBandwidth:" << rfBandwidth
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<< "fftSize:" << fftSize
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<< "binsPerChannel:" << binsPerChannel;
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if (getMessageQueueToGUI())
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{
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FreqScanner::MsgReportScanRange* msg = FreqScanner::MsgReportScanRange::create(inputFrequencyOffset, m_scannerSampleRate, fftSize);
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getMessageQueueToGUI()->push(msg);
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}
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}
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