mirror of
https://github.com/f4exb/sdrangel.git
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603 lines
23 KiB
C++
603 lines
23 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019 Edouard Griffiths, F4EXB //
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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 <string.h>
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#include <stdio.h>
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#include <complex.h>
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#include <QTime>
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#include <QDebug>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QBuffer>
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#include "SWGChannelSettings.h"
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#include "SWGDSDDemodSettings.h"
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#include "SWGChannelReport.h"
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#include "SWGDSDDemodReport.h"
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#include "SWGRDSReport.h"
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#include "dsp/dspengine.h"
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#include "dsp/basebandsamplesink.h"
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#include "audio/audiooutputdevice.h"
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#include "util/db.h"
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#include "dsddemodsink.h"
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DSDDemodSink::DSDDemodSink() :
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m_channelSampleRate(48000),
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m_channelFrequencyOffset(0),
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m_audioSampleRate(48000),
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m_interpolatorDistance(0.0f),
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m_interpolatorDistanceRemain(0.0f),
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m_sampleCount(0),
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m_squelchCount(0),
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m_squelchGate(0),
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m_squelchLevel(1e-4),
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m_squelchOpen(false),
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m_squelchDelayLine(24000),
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m_audioFifo1(48000),
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m_audioFifo2(48000),
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m_scopeXY(0),
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m_scopeEnabled(true),
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m_dsdDecoder(),
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m_signalFormat(signalFormatNone)
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{
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m_audioBuffer.resize(1<<14);
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m_audioBufferFill = 0;
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m_sampleBuffer = new FixReal[1<<17]; // 128 kS
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m_sampleBufferIndex = 0;
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m_scaleFromShort = SDR_RX_SAMP_SZ < sizeof(short)*8 ? 1 : 1<<(SDR_RX_SAMP_SZ - sizeof(short)*8);
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m_magsq = 0.0f;
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m_magsqSum = 0.0f;
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m_magsqPeak = 0.0f;
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m_magsqCount = 0;
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applySettings(m_settings, true);
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applyChannelSettings(m_channelSampleRate, m_channelFrequencyOffset, true);
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}
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DSDDemodSink::~DSDDemodSink()
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{
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delete[] m_sampleBuffer;
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}
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void DSDDemodSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
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{ Complex ci;
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int samplesPerSymbol = m_dsdDecoder.getSamplesPerSymbol();
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m_scopeSampleBuffer.clear();
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m_dsdDecoder.enableMbelib(!DSPEngine::instance()->hasDVSerialSupport()); // disable mbelib if DV serial support is present and activated else enable it
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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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if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci))
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{
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FixReal sample, delayedSample;
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qint16 sampleDSD;
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Real re = ci.real() / SDR_RX_SCALED;
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Real im = ci.imag() / SDR_RX_SCALED;
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Real magsq = re*re + im*im;
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m_movingAverage(magsq);
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m_magsqSum += magsq;
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if (magsq > m_magsqPeak)
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{
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m_magsqPeak = magsq;
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}
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m_magsqCount++;
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Real demod = m_phaseDiscri.phaseDiscriminator(ci) * m_settings.m_demodGain; // [-1.0:1.0]
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m_sampleCount++;
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// AF processing
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if (m_movingAverage.asDouble() > m_squelchLevel)
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{
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if (m_squelchGate > 0)
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{
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if (m_squelchCount < m_squelchGate*2) {
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m_squelchCount++;
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}
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m_squelchDelayLine.write(demod);
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m_squelchOpen = m_squelchCount > m_squelchGate;
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}
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else
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{
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m_squelchOpen = true;
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}
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}
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else
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{
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if (m_squelchGate > 0)
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{
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if (m_squelchCount > 0) {
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m_squelchCount--;
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}
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m_squelchDelayLine.write(0);
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m_squelchOpen = m_squelchCount > m_squelchGate;
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}
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else
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{
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m_squelchOpen = false;
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}
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}
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if (m_squelchOpen)
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{
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if (m_squelchGate > 0)
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{
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sampleDSD = m_squelchDelayLine.readBack(m_squelchGate) * 32768.0f; // DSD decoder takes int16 samples
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sample = m_squelchDelayLine.readBack(m_squelchGate) * SDR_RX_SCALEF; // scale to sample size
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}
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else
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{
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sampleDSD = demod * 32768.0f; // DSD decoder takes int16 samples
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sample = demod * SDR_RX_SCALEF; // scale to sample size
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}
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}
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else
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{
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sampleDSD = 0;
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sample = 0;
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}
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m_dsdDecoder.pushSample(sampleDSD);
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if (m_settings.m_enableCosineFiltering) { // show actual input to FSK demod
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sample = m_dsdDecoder.getFilteredSample() * m_scaleFromShort;
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}
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if (m_sampleBufferIndex < (1<<17)-1) {
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m_sampleBufferIndex++;
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} else {
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m_sampleBufferIndex = 0;
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}
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m_sampleBuffer[m_sampleBufferIndex] = sample;
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if (m_sampleBufferIndex < samplesPerSymbol) {
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delayedSample = m_sampleBuffer[(1<<17) - samplesPerSymbol + m_sampleBufferIndex]; // wrap
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} else {
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delayedSample = m_sampleBuffer[m_sampleBufferIndex - samplesPerSymbol];
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}
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if (m_settings.m_syncOrConstellation)
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{
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Sample s(sample, m_dsdDecoder.getSymbolSyncSample() * m_scaleFromShort * 0.84);
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m_scopeSampleBuffer.push_back(s);
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}
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else
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{
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Sample s(sample, delayedSample); // I=signal, Q=signal delayed by 20 samples (2400 baud: lowest rate)
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m_scopeSampleBuffer.push_back(s);
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}
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if (DSPEngine::instance()->hasDVSerialSupport())
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{
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if ((m_settings.m_slot1On) && m_dsdDecoder.mbeDVReady1())
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{
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if (!m_settings.m_audioMute)
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{
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DSPEngine::instance()->pushMbeFrame(
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m_dsdDecoder.getMbeDVFrame1(),
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m_dsdDecoder.getMbeRateIndex(),
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m_settings.m_volume * 10.0,
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m_settings.m_tdmaStereo ? 1 : 3, // left or both channels
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m_settings.m_highPassFilter,
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m_audioSampleRate/8000, // upsample from native 8k
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&m_audioFifo1);
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}
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m_dsdDecoder.resetMbeDV1();
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}
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if ((m_settings.m_slot2On) && m_dsdDecoder.mbeDVReady2())
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{
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if (!m_settings.m_audioMute)
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{
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DSPEngine::instance()->pushMbeFrame(
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m_dsdDecoder.getMbeDVFrame2(),
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m_dsdDecoder.getMbeRateIndex(),
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m_settings.m_volume * 10.0,
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m_settings.m_tdmaStereo ? 2 : 3, // right or both channels
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m_settings.m_highPassFilter,
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m_audioSampleRate/8000, // upsample from native 8k
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&m_audioFifo2);
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}
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m_dsdDecoder.resetMbeDV2();
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}
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}
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m_interpolatorDistanceRemain += m_interpolatorDistance;
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}
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}
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if (!DSPEngine::instance()->hasDVSerialSupport())
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{
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if (m_settings.m_slot1On)
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{
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int nbAudioSamples;
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short *dsdAudio = m_dsdDecoder.getAudio1(nbAudioSamples);
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if (nbAudioSamples > 0)
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{
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if (!m_settings.m_audioMute) {
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m_audioFifo1.write((const quint8*) dsdAudio, nbAudioSamples);
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}
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m_dsdDecoder.resetAudio1();
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}
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}
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if (m_settings.m_slot2On)
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{
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int nbAudioSamples;
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short *dsdAudio = m_dsdDecoder.getAudio2(nbAudioSamples);
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if (nbAudioSamples > 0)
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{
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if (!m_settings.m_audioMute) {
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m_audioFifo2.write((const quint8*) dsdAudio, nbAudioSamples);
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}
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m_dsdDecoder.resetAudio2();
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}
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}
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}
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if ((m_scopeXY != 0) && (m_scopeEnabled))
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{
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m_scopeXY->feed(m_scopeSampleBuffer.begin(), m_scopeSampleBuffer.end(), true); // true = real samples for what it's worth
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}
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}
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void DSDDemodSink::applyAudioSampleRate(int sampleRate)
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{
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if (sampleRate < 0)
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{
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qWarning("DSDDemodSink::applyAudioSampleRate: invalid sample rate: %d", sampleRate);
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return;
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}
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int upsampling = sampleRate / 8000;
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qDebug("DSDDemodSink::applyAudioSampleRate: audio rate: %d upsample by %d", sampleRate, upsampling);
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if (sampleRate % 8000 != 0) {
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qDebug("DSDDemodSink::applyAudioSampleRate: audio will sound best with sample rates that are integer multiples of 8 kS/s");
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}
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m_dsdDecoder.setUpsampling(upsampling);
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m_audioSampleRate = sampleRate;
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}
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void DSDDemodSink::applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, bool force)
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{
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qDebug() << "DSDDemodSink::applyChannelSettings:"
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<< " channelSampleRate: " << channelSampleRate
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<< " inputFrequencyOffset: " << channelFrequencyOffset;
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if ((channelFrequencyOffset != m_channelFrequencyOffset) ||
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(channelSampleRate != m_channelSampleRate) || force)
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{
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m_nco.setFreq(-channelFrequencyOffset, channelSampleRate);
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}
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if ((channelSampleRate != m_channelSampleRate) || force)
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{
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m_interpolator.create(16, channelSampleRate, (m_settings.m_rfBandwidth) / 2.2);
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m_interpolatorDistanceRemain = 0;
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m_interpolatorDistance = (Real) channelSampleRate / (Real) 48000;
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}
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m_channelSampleRate = channelSampleRate;
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m_channelFrequencyOffset = channelFrequencyOffset;
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}
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void DSDDemodSink::applySettings(const DSDDemodSettings& settings, bool force)
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{
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qDebug() << "DSDDemodSink::applySettings: "
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<< " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
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<< " m_rfBandwidth: " << settings.m_rfBandwidth
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<< " m_fmDeviation: " << settings.m_fmDeviation
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<< " m_demodGain: " << settings.m_demodGain
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<< " m_volume: " << settings.m_volume
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<< " m_baudRate: " << settings.m_baudRate
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<< " m_squelchGate" << settings.m_squelchGate
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<< " m_squelch: " << settings.m_squelch
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<< " m_audioMute: " << settings.m_audioMute
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<< " m_enableCosineFiltering: " << settings.m_enableCosineFiltering
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<< " m_syncOrConstellation: " << settings.m_syncOrConstellation
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<< " m_slot1On: " << settings.m_slot1On
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<< " m_slot2On: " << settings.m_slot2On
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<< " m_tdmaStereo: " << settings.m_tdmaStereo
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<< " m_pllLock: " << settings.m_pllLock
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<< " m_highPassFilter: "<< settings.m_highPassFilter
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<< " m_audioDeviceName: " << settings.m_audioDeviceName
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<< " m_traceLengthMutliplier: " << settings.m_traceLengthMutliplier
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<< " m_traceStroke: " << settings.m_traceStroke
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<< " m_traceDecay: " << settings.m_traceDecay
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<< " m_streamIndex: " << settings.m_streamIndex
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<< " force: " << force;
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if ((settings.m_rfBandwidth != m_settings.m_rfBandwidth) || force)
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{
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m_interpolator.create(16, m_channelSampleRate, (settings.m_rfBandwidth) / 2.2);
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m_interpolatorDistanceRemain = 0;
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m_interpolatorDistance = (Real) m_channelSampleRate / (Real) 48000;
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//m_phaseDiscri.setFMScaling((float) settings.m_rfBandwidth / (float) settings.m_fmDeviation);
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}
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if ((settings.m_fmDeviation != m_settings.m_fmDeviation) || force)
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{
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m_phaseDiscri.setFMScaling(48000.0f / (2.0f*settings.m_fmDeviation));
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}
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if ((settings.m_squelchGate != m_settings.m_squelchGate) || force)
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{
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m_squelchGate = 480 * settings.m_squelchGate; // gate is given in 10s of ms at 48000 Hz audio sample rate
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m_squelchCount = 0; // reset squelch open counter
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}
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if ((settings.m_squelch != m_settings.m_squelch) || force)
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{
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// input is a value in dB
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m_squelchLevel = std::pow(10.0, settings.m_squelch / 10.0);
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}
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if ((settings.m_volume != m_settings.m_volume) || force)
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{
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m_dsdDecoder.setAudioGain(settings.m_volume);
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}
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if ((settings.m_baudRate != m_settings.m_baudRate) || force)
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{
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m_dsdDecoder.setBaudRate(settings.m_baudRate);
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}
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if ((settings.m_enableCosineFiltering != m_settings.m_enableCosineFiltering) || force)
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{
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m_dsdDecoder.enableCosineFiltering(settings.m_enableCosineFiltering);
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}
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if ((settings.m_tdmaStereo != m_settings.m_tdmaStereo) || force)
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{
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m_dsdDecoder.setTDMAStereo(settings.m_tdmaStereo);
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}
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if ((settings.m_pllLock != m_settings.m_pllLock) || force)
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{
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m_dsdDecoder.setSymbolPLLLock(settings.m_pllLock);
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}
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if ((settings.m_highPassFilter != m_settings.m_highPassFilter) || force)
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{
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m_dsdDecoder.useHPMbelib(settings.m_highPassFilter);
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}
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m_settings = settings;
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}
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void DSDDemodSink::configureMyPosition(float myLatitude, float myLongitude)
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{
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m_dsdDecoder.setMyPoint(myLatitude, myLongitude);
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}
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const char *DSDDemodSink::updateAndGetStatusText()
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{
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formatStatusText();
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return m_formatStatusText;
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}
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void DSDDemodSink::formatStatusText()
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{
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switch (getDecoder().getSyncType())
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{
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case DSDcc::DSDDecoder::DSDSyncDMRDataMS:
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case DSDcc::DSDDecoder::DSDSyncDMRDataP:
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case DSDcc::DSDDecoder::DSDSyncDMRVoiceMS:
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case DSDcc::DSDDecoder::DSDSyncDMRVoiceP:
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if (m_signalFormat != signalFormatDMR)
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{
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strcpy(m_formatStatusText, "Sta: __ S1: __________________________ S2: __________________________");
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}
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switch (getDecoder().getStationType())
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{
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case DSDcc::DSDDecoder::DSDBaseStation:
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memcpy(&m_formatStatusText[5], "BS ", 3);
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break;
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case DSDcc::DSDDecoder::DSDMobileStation:
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memcpy(&m_formatStatusText[5], "MS ", 3);
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break;
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default:
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memcpy(&m_formatStatusText[5], "NA ", 3);
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break;
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}
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memcpy(&m_formatStatusText[12], getDecoder().getDMRDecoder().getSlot0Text(), 26);
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memcpy(&m_formatStatusText[43], getDecoder().getDMRDecoder().getSlot1Text(), 26);
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m_signalFormat = signalFormatDMR;
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break;
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case DSDcc::DSDDecoder::DSDSyncDStarHeaderN:
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case DSDcc::DSDDecoder::DSDSyncDStarHeaderP:
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case DSDcc::DSDDecoder::DSDSyncDStarN:
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case DSDcc::DSDDecoder::DSDSyncDStarP:
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if (m_signalFormat != signalFormatDStar)
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{
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// 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8
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// 0....5....0....5....0....5....0....5....0....5....0....5....0....5....0....5....0..
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strcpy(m_formatStatusText, "________/____>________|________>________|____________________|______:___/_____._");
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// MY UR RPT1 RPT2 Info Loc Target
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}
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{
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const std::string& rpt1 = getDecoder().getDStarDecoder().getRpt1();
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const std::string& rpt2 = getDecoder().getDStarDecoder().getRpt2();
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const std::string& mySign = getDecoder().getDStarDecoder().getMySign();
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const std::string& yrSign = getDecoder().getDStarDecoder().getYourSign();
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if (rpt1.length() > 0) { // 0 or 8
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memcpy(&m_formatStatusText[23], rpt1.c_str(), 8);
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}
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if (rpt2.length() > 0) { // 0 or 8
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memcpy(&m_formatStatusText[32], rpt2.c_str(), 8);
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}
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if (yrSign.length() > 0) { // 0 or 8
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memcpy(&m_formatStatusText[14], yrSign.c_str(), 8);
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}
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if (mySign.length() > 0) { // 0 or 13
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memcpy(&m_formatStatusText[0], mySign.c_str(), 13);
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}
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memcpy(&m_formatStatusText[41], getDecoder().getDStarDecoder().getInfoText(), 20);
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memcpy(&m_formatStatusText[62], getDecoder().getDStarDecoder().getLocator(), 6);
|
|
snprintf(&m_formatStatusText[69], 82-69, "%03d/%07.1f",
|
|
getDecoder().getDStarDecoder().getBearing(),
|
|
getDecoder().getDStarDecoder().getDistance());
|
|
}
|
|
|
|
m_formatStatusText[82] = '\0';
|
|
m_signalFormat = signalFormatDStar;
|
|
break;
|
|
case DSDcc::DSDDecoder::DSDSyncDPMR:
|
|
snprintf(m_formatStatusText, 82, "%s CC: %04d OI: %08d CI: %08d",
|
|
DSDcc::DSDdPMR::dpmrFrameTypes[(int) getDecoder().getDPMRDecoder().getFrameType()],
|
|
getDecoder().getDPMRDecoder().getColorCode(),
|
|
getDecoder().getDPMRDecoder().getOwnId(),
|
|
getDecoder().getDPMRDecoder().getCalledId());
|
|
m_signalFormat = signalFormatDPMR;
|
|
break;
|
|
case DSDcc::DSDDecoder::DSDSyncNXDNP:
|
|
case DSDcc::DSDDecoder::DSDSyncNXDNN:
|
|
if (getDecoder().getNXDNDecoder().getRFChannel() == DSDcc::DSDNXDN::NXDNRCCH)
|
|
{
|
|
// 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8
|
|
// 0....5....0....5....0....5....0....5....0....5....0....5....0....5....0....5....0..
|
|
// RC r cc mm llllll ssss
|
|
snprintf(m_formatStatusText, 82, "RC %s %02d %02X %06X %02X",
|
|
getDecoder().getNXDNDecoder().isFullRate() ? "F" : "H",
|
|
getDecoder().getNXDNDecoder().getRAN(),
|
|
getDecoder().getNXDNDecoder().getMessageType(),
|
|
getDecoder().getNXDNDecoder().getLocationId(),
|
|
getDecoder().getNXDNDecoder().getServicesFlag());
|
|
}
|
|
else if ((getDecoder().getNXDNDecoder().getRFChannel() == DSDcc::DSDNXDN::NXDNRTCH)
|
|
|| (getDecoder().getNXDNDecoder().getRFChannel() == DSDcc::DSDNXDN::NXDNRDCH))
|
|
{
|
|
if (getDecoder().getNXDNDecoder().isIdle()) {
|
|
snprintf(m_formatStatusText, 82, "%s IDLE", getDecoder().getNXDNDecoder().getRFChannelStr());
|
|
}
|
|
else
|
|
{
|
|
// 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8
|
|
// 0....5....0....5....0....5....0....5....0....5....0....5....0....5....0....5....0..
|
|
// Rx r cc mm sssss>gddddd
|
|
snprintf(m_formatStatusText, 82, "%s %s %02d %02X %05d>%c%05d",
|
|
getDecoder().getNXDNDecoder().getRFChannelStr(),
|
|
getDecoder().getNXDNDecoder().isFullRate() ? "F" : "H",
|
|
getDecoder().getNXDNDecoder().getRAN(),
|
|
getDecoder().getNXDNDecoder().getMessageType(),
|
|
getDecoder().getNXDNDecoder().getSourceId(),
|
|
getDecoder().getNXDNDecoder().isGroupCall() ? 'G' : 'I',
|
|
getDecoder().getNXDNDecoder().getDestinationId());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8
|
|
// 0....5....0....5....0....5....0....5....0....5....0....5....0....5....0....5....0..
|
|
// RU
|
|
snprintf(m_formatStatusText, 82, "RU");
|
|
}
|
|
m_signalFormat = signalFormatNXDN;
|
|
break;
|
|
case DSDcc::DSDDecoder::DSDSyncYSF:
|
|
// 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8
|
|
// 0....5....0....5....0....5....0....5....0....5....0....5....0....5....0....5....0..
|
|
// C V2 RI 0:7 WL000|ssssssssss>dddddddddd |UUUUUUUUUU>DDDDDDDDDD|44444
|
|
if (getDecoder().getYSFDecoder().getFICHError() == DSDcc::DSDYSF::FICHNoError)
|
|
{
|
|
snprintf(m_formatStatusText, 82, "%s ", DSDcc::DSDYSF::ysfChannelTypeText[(int) getDecoder().getYSFDecoder().getFICH().getFrameInformation()]);
|
|
}
|
|
else
|
|
{
|
|
snprintf(m_formatStatusText, 82, "%d ", (int) getDecoder().getYSFDecoder().getFICHError());
|
|
}
|
|
|
|
snprintf(&m_formatStatusText[2], 80, "%s %s %d:%d %c%c",
|
|
DSDcc::DSDYSF::ysfDataTypeText[(int) getDecoder().getYSFDecoder().getFICH().getDataType()],
|
|
DSDcc::DSDYSF::ysfCallModeText[(int) getDecoder().getYSFDecoder().getFICH().getCallMode()],
|
|
getDecoder().getYSFDecoder().getFICH().getBlockTotal(),
|
|
getDecoder().getYSFDecoder().getFICH().getFrameTotal(),
|
|
(getDecoder().getYSFDecoder().getFICH().isNarrowMode() ? 'N' : 'W'),
|
|
(getDecoder().getYSFDecoder().getFICH().isInternetPath() ? 'I' : 'L'));
|
|
|
|
if (getDecoder().getYSFDecoder().getFICH().isSquelchCodeEnabled())
|
|
{
|
|
snprintf(&m_formatStatusText[14], 82-14, "%03d", getDecoder().getYSFDecoder().getFICH().getSquelchCode());
|
|
}
|
|
else
|
|
{
|
|
strncpy(&m_formatStatusText[14], "---", 82-14);
|
|
}
|
|
|
|
char dest[13];
|
|
|
|
if (getDecoder().getYSFDecoder().radioIdMode())
|
|
{
|
|
snprintf(dest, 12, "%-5s:%-5s",
|
|
getDecoder().getYSFDecoder().getDestId(),
|
|
getDecoder().getYSFDecoder().getSrcId());
|
|
}
|
|
else
|
|
{
|
|
snprintf(dest, 11, "%-10s", getDecoder().getYSFDecoder().getDest());
|
|
}
|
|
|
|
snprintf(&m_formatStatusText[17], 82-17, "|%-10s>%s|%-10s>%-10s|%-5s",
|
|
getDecoder().getYSFDecoder().getSrc(),
|
|
dest,
|
|
getDecoder().getYSFDecoder().getUplink(),
|
|
getDecoder().getYSFDecoder().getDownlink(),
|
|
getDecoder().getYSFDecoder().getRem4());
|
|
|
|
m_signalFormat = signalFormatYSF;
|
|
break;
|
|
default:
|
|
m_signalFormat = signalFormatNone;
|
|
m_formatStatusText[0] = '\0';
|
|
break;
|
|
}
|
|
|
|
m_formatStatusText[82] = '\0'; // guard
|
|
}
|