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323 lines
10 KiB
C++
323 lines
10 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) 2015-2021 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// Copyright (C) 2021 Christoph Berg <myon@debian.org> //
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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/sigmffilerecord.h"
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#include "dsp/spectrumvis.h"
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#include "sigmffilesinkmessages.h"
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#include "sigmffilesinksink.h"
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SigMFFileSinkSink::SigMFFileSinkSink() :
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m_preRecordBuffer(48000),
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m_preRecordFill(0),
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m_spectrumSink(nullptr),
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m_msgQueueToGUI(nullptr),
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m_recordEnabled(false),
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m_record(false),
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m_squelchOpen(false),
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m_postSquelchCounter(0),
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m_msCount(0),
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m_byteCount(0)
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{}
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SigMFFileSinkSink::~SigMFFileSinkSink()
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{}
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void SigMFFileSinkSink::startRecording()
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{
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if (m_recordEnabled) // File is open for writing and valid
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{
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// set the length of pre record time
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qint64 mSShift = (m_preRecordFill * 1000) / m_sinkSampleRate;
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m_fileSink.setMsShift(-mSShift);
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// notify capture start
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m_fileSink.startRecording();
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m_record = true;
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if (m_msgQueueToGUI)
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{
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SigMFFileSinkMessages::MsgReportRecording *msg = SigMFFileSinkMessages::MsgReportRecording::create(true);
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m_msgQueueToGUI->push(msg);
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}
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// copy pre record samples
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SampleVector::iterator p1Begin, p1End, p2Begin, p2End;
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m_preRecordBuffer.readBegin(m_preRecordFill, &p1Begin, &p1End, &p2Begin, &p2End);
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if (p1Begin != p1End) {
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m_fileSink.feed(p1Begin, p1End, false);
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}
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if (p2Begin != p2End) {
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m_fileSink.feed(p2Begin, p2End, false);
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}
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m_byteCount += m_preRecordFill * ((1<<m_settings.m_log2RecordSampleSize)/4); // sizeof(Sample);
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if (m_sinkSampleRate > 0) {
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m_msCount += (m_preRecordFill * 1000) / m_sinkSampleRate;
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}
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}
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}
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void SigMFFileSinkSink::stopRecording()
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{
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if (m_record)
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{
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m_preRecordBuffer.reset();
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m_fileSink.stopRecording();
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if (m_msgQueueToGUI)
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{
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SigMFFileSinkMessages::MsgReportRecording *msg = SigMFFileSinkMessages::MsgReportRecording::create(false);
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m_msgQueueToGUI->push(msg);
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}
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m_record = false;
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}
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}
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void SigMFFileSinkSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
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{
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SampleVector::const_iterator beginw = begin;
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SampleVector::const_iterator endw = end;
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if (m_decimator.getDecim() != 1)
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{
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for (SampleVector::const_iterator it = begin; it < end; ++it)
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{
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Complex c(it->real(), it->imag());
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c *= m_nco.nextIQ();
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Complex ci;
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if (m_decimator.decimate(c, ci)) {
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m_sampleBuffer.push_back(Sample(ci.real(), ci.imag()));
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}
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}
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beginw = m_sampleBuffer.begin();
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endw = m_sampleBuffer.end();
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}
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if (!m_record && (m_settings.m_preRecordTime != 0)) {
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m_preRecordFill = m_preRecordBuffer.write(beginw, endw);
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}
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if (m_settings.m_squelchRecordingEnable)
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{
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int nbToWrite = endw - beginw;
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if (m_squelchOpen)
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{
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m_fileSink.feed(beginw, endw, true);
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}
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else
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{
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if (nbToWrite < m_postSquelchCounter)
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{
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m_fileSink.feed(beginw, endw, true);
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m_postSquelchCounter -= nbToWrite;
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}
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else
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{
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m_fileSink.feed(beginw, endw + m_postSquelchCounter, true);
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nbToWrite = m_postSquelchCounter;
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m_postSquelchCounter = 0;
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stopRecording();
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}
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}
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m_byteCount += nbToWrite * ((1<<m_settings.m_log2RecordSampleSize)/4); // sizeof(Sample);
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if (m_sinkSampleRate > 0) {
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m_msCount += (nbToWrite * 1000) / m_sinkSampleRate;
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}
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}
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else if (m_record)
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{
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m_fileSink.feed(beginw, endw, true);
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int nbSamples = endw - beginw;
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m_byteCount += nbSamples * ((1<<m_settings.m_log2RecordSampleSize)/4); // sizeof(Sample);
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if (m_sinkSampleRate > 0) {
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m_msCount += (nbSamples * 1000) / m_sinkSampleRate;
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}
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}
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if (m_spectrumSink) {
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m_spectrumSink->feed(beginw, endw, false);
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}
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if (m_decimator.getDecim() != 1) {
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m_sampleBuffer.clear();
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}
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}
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void SigMFFileSinkSink::applyChannelSettings(
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int channelSampleRate,
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int sinkSampleRate,
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int channelFrequencyOffset,
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int64_t centerFrequency,
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bool force)
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{
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qDebug() << "SigMFFileSinkSink::applyChannelSettings:"
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<< " channelSampleRate: " << channelSampleRate
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<< " sinkSampleRate: " << sinkSampleRate
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<< " channelFrequencyOffset: " << channelFrequencyOffset
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<< " centerFrequency: " << centerFrequency
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<< " force: " << force;
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if ((m_channelFrequencyOffset != channelFrequencyOffset) ||
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(m_channelSampleRate != channelSampleRate) || force)
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{
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m_nco.setFreq(-channelFrequencyOffset, channelSampleRate);
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}
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if ((m_channelSampleRate != channelSampleRate)
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|| (m_sinkSampleRate != sinkSampleRate) || force)
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{
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int decim = channelSampleRate / sinkSampleRate;
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for (int i = 0; i < 7; i++) // find log2 between 0 and 6
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{
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if ((decim & 1) == 1)
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{
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qDebug() << "SigMFFileSinkSink::applyChannelSettings: log2decim: " << i;
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m_decimator.setLog2Decim(i);
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break;
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}
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decim >>= 1;
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}
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}
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if ((m_centerFrequency != centerFrequency)
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|| (m_channelFrequencyOffset != channelFrequencyOffset)
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|| (m_sinkSampleRate != sinkSampleRate) || force)
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{
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DSPSignalNotification *notif = new DSPSignalNotification(sinkSampleRate, centerFrequency);
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DSPSignalNotification *notifToSpectrum = new DSPSignalNotification(*notif);
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m_fileSink.getInputMessageQueue()->push(notif);
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m_spectrumSink->getInputMessageQueue()->push(notifToSpectrum);
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if (m_msgQueueToGUI)
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{
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SigMFFileSinkMessages::MsgConfigureSpectrum *msg = SigMFFileSinkMessages::MsgConfigureSpectrum::create(
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centerFrequency, sinkSampleRate);
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m_msgQueueToGUI->push(msg);
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}
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}
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if ((m_sinkSampleRate != sinkSampleRate) || force) {
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m_preRecordBuffer.setSize(m_settings.m_preRecordTime * sinkSampleRate);
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}
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m_channelSampleRate = channelSampleRate;
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m_channelFrequencyOffset = channelFrequencyOffset;
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m_sinkSampleRate = sinkSampleRate;
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m_centerFrequency = centerFrequency;
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m_preRecordBuffer.reset();
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}
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void SigMFFileSinkSink::applySettings(const SigMFFileSinkSettings& settings, bool force)
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{
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qDebug() << "SigMFFileSinkSink::applySettings:"
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<< "m_fileRecordName: " << settings.m_fileRecordName
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<< "force: " << force;
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QString fileRecordName = settings.m_fileRecordName;
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if ((settings.m_fileRecordName != m_settings.m_fileRecordName) || force)
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{
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QStringList dotBreakout = settings.m_fileRecordName.split(QLatin1Char('.'));
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if (dotBreakout.size() > 1) {
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QString extension = dotBreakout.last();
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if (extension != "sigmf-meta") {
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dotBreakout.last() = "sigmf-meta";
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}
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}
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else
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{
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dotBreakout.append("sigmf-meta");
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}
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fileRecordName = dotBreakout.join(QLatin1Char('.'));
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QString fileBase;
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FileRecordInterface::RecordType recordType = FileRecordInterface::guessTypeFromFileName(fileRecordName, fileBase);
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if (recordType == FileRecordInterface::RecordTypeSigMF)
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{
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m_fileSink.setFileName(fileBase);
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m_fileSink.setHardwareId(m_deviceHwId);
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m_msCount = m_fileSink.getInitialMsCount();
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m_byteCount = m_fileSink.getInitialBytesCount();
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m_recordEnabled = true;
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}
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else
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{
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m_recordEnabled = false;
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}
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}
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if ((settings.m_preRecordTime != m_settings.m_squelchPostRecordTime) || force)
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{
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m_preRecordBuffer.setSize(settings.m_preRecordTime * m_sinkSampleRate);
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if (settings.m_preRecordTime == 0) {
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m_preRecordFill = 0;
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}
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}
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if ((settings.m_log2RecordSampleSize != m_settings.m_log2RecordSampleSize) || force) {
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m_fileSink.setLog2RecordSampleSize(settings.m_log2RecordSampleSize);
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}
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m_settings = settings;
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m_settings.m_fileRecordName = fileRecordName;
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}
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void SigMFFileSinkSink::squelchRecording(bool squelchOpen)
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{
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if (!m_recordEnabled || !m_settings.m_squelchRecordingEnable) {
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return;
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}
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if (squelchOpen)
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{
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if (!m_record) {
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startRecording();
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}
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}
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else
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{
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m_postSquelchCounter = m_settings.m_squelchPostRecordTime * m_sinkSampleRate;
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}
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m_squelchOpen = squelchOpen;
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}
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