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sdrangel/plugins/channelrx/demodfreedv/freedvdemod.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 Edouard Griffiths, F4EXB //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <QTime>
#include <QDebug>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QBuffer>
#include "codec2/freedv_api.h"
#include "codec2/modem_stats.h"
#include "SWGChannelSettings.h"
#include "SWGFreeDVDemodSettings.h"
#include "SWGChannelReport.h"
#include "SWGFreeDVDemodReport.h"
#include "audio/audiooutput.h"
#include "dsp/dspengine.h"
#include "dsp/downchannelizer.h"
#include "dsp/threadedbasebandsamplesink.h"
#include "dsp/dspcommands.h"
#include "device/deviceapi.h"
#include "util/db.h"
#include "freedvdemod.h"
MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureFreeDVDemod, Message)
MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgResyncFreeDVDemod, Message)
MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureFreeDVDemodPrivate, Message)
MESSAGE_CLASS_DEFINITION(FreeDVDemod::MsgConfigureChannelizer, Message)
const QString FreeDVDemod::m_channelIdURI = "sdrangel.channel.freedvdemod";
const QString FreeDVDemod::m_channelId = "FreeDVDemod";
FreeDVDemod::FreeDVStats::FreeDVStats()
{
init();
}
void FreeDVDemod::FreeDVStats::init()
{
m_sync = false;
m_snrEst = -20;
m_clockOffset = 0;
m_freqOffset = 0;
m_syncMetric = 0;
m_totalBitErrors = 0;
m_lastTotalBitErrors = 0;
m_ber = 0;
m_frameCount = 0;
m_berFrameCount = 0;
m_fps = 1;
}
void FreeDVDemod::FreeDVStats::collect(struct freedv *freeDV)
{
struct MODEM_STATS stats;
freedv_get_modem_extended_stats(freeDV, &stats);
m_totalBitErrors = freedv_get_total_bit_errors(freeDV);
m_clockOffset = stats.clock_offset;
m_freqOffset = stats.foff;
m_syncMetric = stats.sync_metric;
m_sync = stats.sync != 0;
m_snrEst = stats.snr_est;
if (m_berFrameCount >= m_fps)
{
m_ber = m_totalBitErrors - m_lastTotalBitErrors;
m_ber = m_ber < 0 ? 0 : m_ber;
m_berFrameCount = 0;
m_lastTotalBitErrors = m_totalBitErrors;
// qDebug("FreeDVStats::collect: demod sync: %s sync metric: %f demod snr: %3.2f dB BER: %d clock offset: %f freq offset: %f",
// m_sync ? "ok" : "ko", m_syncMetric, m_snrEst, m_ber, m_clockOffset, m_freqOffset);
}
m_berFrameCount++;
m_frameCount++;
}
FreeDVDemod::FreeDVSNR::FreeDVSNR()
{
m_sum = 0.0f;
m_peak = 0.0f;
m_n = 0;
m_reset = true;
}
void FreeDVDemod::FreeDVSNR::accumulate(float snrdB)
{
if (m_reset)
{
m_sum = CalcDb::powerFromdB(snrdB);
m_peak = snrdB;
m_n = 1;
m_reset = false;
}
else
{
m_sum += CalcDb::powerFromdB(snrdB);
m_peak = std::max(m_peak, snrdB);
m_n++;
}
}
FreeDVDemod::LevelRMS::LevelRMS()
{
m_sum = 0.0f;
m_peak = 0.0f;
m_n = 0;
m_reset = true;
}
void FreeDVDemod::LevelRMS::accumulate(float level)
{
if (m_reset)
{
m_sum = level * level;
m_peak = std::fabs(level);
m_n = 1;
m_reset = false;
}
else
{
m_sum += level * level;
m_peak = std::max(m_peak, std::fabs(level));
m_n++;
}
}
FreeDVDemod::FreeDVDemod(DeviceAPI *deviceAPI) :
ChannelAPI(m_channelIdURI, ChannelAPI::StreamSingleSink),
m_deviceAPI(deviceAPI),
m_hiCutoff(6000),
m_lowCutoff(0),
m_volume(2),
m_spanLog2(3),
m_sum(fftfilt::cmplx{0,0}),
m_inputSampleRate(48000),
m_modemSampleRate(48000),
m_speechSampleRate(8000), // fixed 8 kS/s
m_inputFrequencyOffset(0),
m_audioMute(false),
m_simpleAGC(0.003f, 0.0f, 1e-6f),
m_agcActive(false),
m_squelchDelayLine(2*48000),
m_audioActive(false),
m_sampleSink(0),
m_audioFifo(24000),
m_freeDV(0),
m_nSpeechSamples(0),
m_nMaxModemSamples(0),
m_iSpeech(0),
m_iModem(0),
m_speechOut(0),
m_modIn(0),
m_levelInNbSamples(480), // 10ms @ 48 kS/s
m_settingsMutex(QMutex::Recursive)
{
setObjectName(m_channelId);
DSPEngine::instance()->getAudioDeviceManager()->addAudioSink(&m_audioFifo, getInputMessageQueue());
uint32_t audioSampleRate = DSPEngine::instance()->getAudioDeviceManager()->getOutputSampleRate();
applyAudioSampleRate(audioSampleRate);
m_audioBuffer.resize(1<<14);
m_audioBufferFill = 0;
m_undersampleCount = 0;
m_magsq = 0.0f;
m_magsqSum = 0.0f;
m_magsqPeak = 0.0f;
m_magsqCount = 0;
m_simpleAGC.resizeNew(m_modemSampleRate/10, 0.003);
SSBFilter = new fftfilt(m_lowCutoff / m_modemSampleRate, m_hiCutoff / m_modemSampleRate, ssbFftLen);
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
applySettings(m_settings, true);
m_channelizer = new DownChannelizer(this);
m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
m_deviceAPI->addChannelSink(m_threadedChannelizer);
m_deviceAPI->addChannelSinkAPI(this);
m_networkManager = new QNetworkAccessManager();
connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
}
FreeDVDemod::~FreeDVDemod()
{
disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
delete m_networkManager;
DSPEngine::instance()->getAudioDeviceManager()->removeAudioSink(&m_audioFifo);
m_deviceAPI->removeChannelSinkAPI(this);
m_deviceAPI->removeChannelSink(m_threadedChannelizer);
delete m_threadedChannelizer;
delete m_channelizer;
delete SSBFilter;
}
void FreeDVDemod::configure(MessageQueue* messageQueue,
Real Bandwidth,
Real LowCutoff,
Real volume,
int spanLog2,
bool audioBinaural,
bool audioFlipChannel,
bool dsb,
bool audioMute,
bool agc,
bool agcClamping,
int agcTimeLog2,
int agcPowerThreshold,
int agcThresholdGate)
{
Message* cmd = MsgConfigureFreeDVDemodPrivate::create(
Bandwidth,
LowCutoff,
volume,
spanLog2,
audioBinaural,
audioFlipChannel,
dsb,
audioMute,
agc,
agcClamping,
agcTimeLog2,
agcPowerThreshold,
agcThresholdGate);
messageQueue->push(cmd);
}
void FreeDVDemod::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly)
{
(void) positiveOnly;
Complex ci;
fftfilt::cmplx *sideband;
int n_out;
m_settingsMutex.lock();
int decim = 1<<(m_spanLog2 - 1);
unsigned char decim_mask = decim - 1; // counter LSB bit mask for decimation by 2^(m_scaleLog2 - 1)
for(SampleVector::const_iterator it = begin; it < end; ++it)
{
Complex c(it->real(), it->imag());
c *= m_nco.nextIQ();
if (m_interpolatorDistance < 1.0f) // interpolate
{
while (!m_interpolator.interpolate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
}
else
{
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
}
}
uint res = m_audioFifo.write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
if (res != m_audioBufferFill)
{
qDebug("FreeDVDemod::feed: %u/%u tail samples written", res, m_audioBufferFill);
}
m_audioBufferFill = 0;
if (m_sampleSink != 0)
{
m_sampleSink->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), true);
}
m_sampleBuffer.clear();
m_settingsMutex.unlock();
}
void FreeDVDemod::processOneSample(Complex &ci)
{
fftfilt::cmplx *sideband;
int n_out = 0;
int decim = 1<<(m_spanLog2 - 1);
unsigned char decim_mask = decim - 1; // counter LSB bit mask for decimation by 2^(m_scaleLog2 - 1)
n_out = SSBFilter->runSSB(ci, &sideband, true); // always USB side
for (int i = 0; i < n_out; i++)
{
// Downsample by 2^(m_scaleLog2 - 1) for SSB band spectrum display
// smart decimation with bit gain using float arithmetic (23 bits significand)
m_sum += sideband[i];
if (!(m_undersampleCount++ & decim_mask))
{
Real avgr = m_sum.real() / decim;
Real avgi = m_sum.imag() / decim;
m_magsq = (avgr * avgr + avgi * avgi) / (SDR_RX_SCALED*SDR_RX_SCALED);
m_magsqSum += m_magsq;
if (m_magsq > m_magsqPeak)
{
m_magsqPeak = m_magsq;
}
m_magsqCount++;
m_sampleBuffer.push_back(Sample(avgr, avgi));
m_sum.real(0.0);
m_sum.imag(0.0);
}
// fftfilt::cmplx z = sideband[i];
// Real demod = (z.real() + z.imag()) * 0.7;
Real demod = sideband[i].real(); // works as good
if (m_agcActive)
{
m_simpleAGC.feed(demod);
demod *= (m_settings.m_volumeIn * 3276.8f) / m_simpleAGC.getValue(); // provision for peak to average ratio (here 10) compensated by m_volumeIn
// if (i == 0) {
// qDebug("FreeDVDemod::feed: m_simpleAGC: %f", m_simpleAGC.getValue());
// }
}
else
{
demod *= m_settings.m_volumeIn;
}
pushSampleToDV((qint16) demod);
}
}
void FreeDVDemod::start()
{
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
}
void FreeDVDemod::stop()
{
}
bool FreeDVDemod::handleMessage(const Message& cmd)
{
if (DownChannelizer::MsgChannelizerNotification::match(cmd))
{
DownChannelizer::MsgChannelizerNotification& notif = (DownChannelizer::MsgChannelizerNotification&) cmd;
qDebug("FreeDVDemod::handleMessage: MsgChannelizerNotification: m_sampleRate");
applyChannelSettings(notif.getSampleRate(), notif.getFrequencyOffset());
return true;
}
else if (MsgConfigureChannelizer::match(cmd))
{
MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
qDebug() << "FreeDVDemod::handleMessage: MsgConfigureChannelizer: sampleRate: " << cfg.getSampleRate()
<< " centerFrequency: " << cfg.getCenterFrequency();
m_channelizer->configure(m_channelizer->getInputMessageQueue(),
cfg.getSampleRate(),
cfg.getCenterFrequency());
return true;
}
else if (MsgConfigureFreeDVDemod::match(cmd))
{
MsgConfigureFreeDVDemod& cfg = (MsgConfigureFreeDVDemod&) cmd;
qDebug("FreeDVDemod::handleMessage: MsgConfigureFreeDVDemod");
applySettings(cfg.getSettings(), cfg.getForce());
return true;
}
else if (MsgResyncFreeDVDemod::match(cmd))
{
qDebug("FreeDVDemod::handleMessage: MsgResyncFreeDVDemod");
m_settingsMutex.lock();
freedv_set_sync(m_freeDV, FREEDV_SYNC_UNSYNC);
m_settingsMutex.unlock();
return true;
}
else if (BasebandSampleSink::MsgThreadedSink::match(cmd))
{
BasebandSampleSink::MsgThreadedSink& cfg = (BasebandSampleSink::MsgThreadedSink&) cmd;
const QThread *thread = cfg.getThread();
qDebug("FreeDVDemod::handleMessage: BasebandSampleSink::MsgThreadedSink: %p", thread);
return true;
}
else if (DSPConfigureAudio::match(cmd))
{
DSPConfigureAudio& cfg = (DSPConfigureAudio&) cmd;
uint32_t sampleRate = cfg.getSampleRate();
qDebug() << "FreeDVDemod::handleMessage: DSPConfigureAudio:"
<< " sampleRate: " << sampleRate;
if (sampleRate != m_audioSampleRate) {
applyAudioSampleRate(sampleRate);
}
return true;
}
else if (DSPSignalNotification::match(cmd))
{
return true;
}
else
{
if(m_sampleSink != 0)
{
return m_sampleSink->handleMessage(cmd);
}
else
{
return false;
}
}
}
void FreeDVDemod::pushSampleToDV(int16_t sample)
{
qint16 audioSample;
if (m_levelIn.m_n >= m_levelInNbSamples)
{
qreal rmsLevel = sqrt(m_levelIn.m_sum / m_levelInNbSamples);
// qDebug("FreeDVDemod::pushSampleToDV: rmsLevel: %f m_peak: %f m_levelInNbSamples: %d",
// rmsLevel, m_levelIn.m_peak, m_levelInNbSamples);
emit levelInChanged(rmsLevel, m_levelIn.m_peak, m_levelInNbSamples);
m_levelIn.m_reset = true;
}
m_levelIn.accumulate(sample/29491.2f); // scale on 90% (0.9 * 32768.0)
if (m_iModem == m_nin)
{
int nout = freedv_rx(m_freeDV, m_speechOut, m_modIn);
m_freeDVStats.collect(m_freeDV);
m_freeDVSNR.accumulate(m_freeDVStats.m_snrEst);
if (m_settings.m_audioMute)
{
for (uint32_t i = 0; i < nout * m_audioResampler.getDecimation(); i++) {
pushSampleToAudio(0);
}
}
else
{
for (int i = 0; i < nout; i++)
{
while (!m_audioResampler.upSample(m_speechOut[i], audioSample)) {
pushSampleToAudio(audioSample);
}
pushSampleToAudio(audioSample);
}
}
m_iModem = 0;
m_iSpeech = 0;
}
m_modIn[m_iModem++] = sample;
}
void FreeDVDemod::pushSampleToAudio(int16_t sample)
{
m_audioBuffer[m_audioBufferFill].l = sample * m_volume;
m_audioBuffer[m_audioBufferFill].r = sample * m_volume;
++m_audioBufferFill;
if (m_audioBufferFill >= m_audioBuffer.size())
{
uint res = m_audioFifo.write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
if (res != m_audioBufferFill) {
qDebug("FreeDVDemod::pushSampleToAudio: %u/%u samples written", res, m_audioBufferFill);
}
m_audioBufferFill = 0;
}
}
void FreeDVDemod::applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force)
{
qDebug() << "FreeDVDemod::applyChannelSettings:"
<< " inputSampleRate: " << inputSampleRate
<< " inputFrequencyOffset: " << inputFrequencyOffset;
if ((m_inputFrequencyOffset != inputFrequencyOffset) ||
(m_inputSampleRate != inputSampleRate) || force)
{
m_nco.setFreq(-inputFrequencyOffset, inputSampleRate);
}
if ((m_inputSampleRate != inputSampleRate) || force)
{
m_settingsMutex.lock();
m_interpolator.create(16, inputSampleRate, m_hiCutoff * 1.5f, 2.0f);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) inputSampleRate / (Real) m_modemSampleRate;
m_settingsMutex.unlock();
}
m_inputSampleRate = inputSampleRate;
m_inputFrequencyOffset = inputFrequencyOffset;
}
void FreeDVDemod::applyAudioSampleRate(int sampleRate)
{
qDebug("FreeDVDemod::applyAudioSampleRate: %d", sampleRate);
m_settingsMutex.lock();
m_audioFifo.setSize(sampleRate);
m_audioResampler.setDecimation(sampleRate / m_speechSampleRate);
m_audioResampler.setAudioFilters(sampleRate, sampleRate, 250, 3300, 4.0f);
m_settingsMutex.unlock();
m_audioSampleRate = sampleRate;
}
void FreeDVDemod::applyFreeDVMode(FreeDVDemodSettings::FreeDVMode mode)
{
m_hiCutoff = FreeDVDemodSettings::getHiCutoff(mode);
m_lowCutoff = FreeDVDemodSettings::getLowCutoff(mode);
uint32_t modemSampleRate = FreeDVDemodSettings::getModSampleRate(mode);
m_settingsMutex.lock();
SSBFilter->create_filter(m_lowCutoff / (float) modemSampleRate, m_hiCutoff / (float) modemSampleRate);
// baseband interpolator
if (modemSampleRate != m_modemSampleRate)
{
MsgConfigureChannelizer* channelConfigMsg = MsgConfigureChannelizer::create(
modemSampleRate, m_settings.m_inputFrequencyOffset);
m_inputMessageQueue.push(channelConfigMsg);
m_interpolatorDistanceRemain = 0;
//m_interpolatorConsumed = false;
m_interpolatorDistance = (Real) m_inputSampleRate / (Real) modemSampleRate;
m_interpolator.create(16, m_inputSampleRate, m_hiCutoff * 1.5f, 2.0f);
m_modemSampleRate = modemSampleRate;
m_simpleAGC.resizeNew(modemSampleRate/10, 0.003);
m_levelInNbSamples = m_modemSampleRate / 100; // 10ms
if (getMessageQueueToGUI())
{
DSPConfigureAudio *cfg = new DSPConfigureAudio(m_modemSampleRate, DSPConfigureAudio::AudioOutput);
getMessageQueueToGUI()->push(cfg);
}
}
// FreeDV object
if (m_freeDV) {
freedv_close(m_freeDV);
}
int fdv_mode = -1;
switch(mode)
{
case FreeDVDemodSettings::FreeDVMode700C:
fdv_mode = FREEDV_MODE_700C;
break;
case FreeDVDemodSettings::FreeDVMode700D:
fdv_mode = FREEDV_MODE_700D;
break;
case FreeDVDemodSettings::FreeDVMode800XA:
fdv_mode = FREEDV_MODE_800XA;
break;
case FreeDVDemodSettings::FreeDVMode1600:
fdv_mode = FREEDV_MODE_1600;
break;
case FreeDVDemodSettings::FreeDVMode2400A:
default:
fdv_mode = FREEDV_MODE_2400A;
break;
}
if (fdv_mode == FREEDV_MODE_700D)
{
struct freedv_advanced adv;
adv.interleave_frames = 1;
m_freeDV = freedv_open_advanced(fdv_mode, &adv);
}
else
{
m_freeDV = freedv_open(fdv_mode);
}
if (m_freeDV)
{
freedv_set_test_frames(m_freeDV, 0);
freedv_set_snr_squelch_thresh(m_freeDV, -100.0);
freedv_set_squelch_en(m_freeDV, 0);
freedv_set_clip(m_freeDV, 0);
freedv_set_ext_vco(m_freeDV, 0);
freedv_set_sync(m_freeDV, FREEDV_SYNC_MANUAL);
freedv_set_callback_txt(m_freeDV, nullptr, nullptr, nullptr);
freedv_set_callback_protocol(m_freeDV, nullptr, nullptr, nullptr);
freedv_set_callback_data(m_freeDV, nullptr, nullptr, nullptr);
int nSpeechSamples = freedv_get_n_speech_samples(m_freeDV);
int nMaxModemSamples = freedv_get_n_max_modem_samples(m_freeDV);
int Fs = freedv_get_modem_sample_rate(m_freeDV);
int Rs = freedv_get_modem_symbol_rate(m_freeDV);
m_freeDVStats.init();
if (nSpeechSamples != m_nSpeechSamples)
{
if (m_speechOut) {
delete[] m_speechOut;
}
m_speechOut = new int16_t[nSpeechSamples];
m_nSpeechSamples = nSpeechSamples;
}
if (nMaxModemSamples != m_nMaxModemSamples)
{
if (m_modIn) {
delete[] m_modIn;
}
m_modIn = new int16_t[nMaxModemSamples];
m_nMaxModemSamples = nMaxModemSamples;
}
m_iSpeech = 0;
m_iModem = 0;
m_nin = freedv_nin(m_freeDV);
if (m_nin > 0) {
m_freeDVStats.m_fps = m_modemSampleRate / m_nin;
}
qDebug() << "FreeDVMod::applyFreeDVMode:"
<< " fdv_mode: " << fdv_mode
<< " m_modemSampleRate: " << m_modemSampleRate
<< " m_lowCutoff: " << m_lowCutoff
<< " m_hiCutoff: " << m_hiCutoff
<< " Fs: " << Fs
<< " Rs: " << Rs
<< " m_nSpeechSamples: " << m_nSpeechSamples
<< " m_nMaxModemSamples: " << m_nMaxModemSamples
<< " m_nin: " << m_nin
<< " FPS: " << m_freeDVStats.m_fps;
}
m_settingsMutex.unlock();
}
void FreeDVDemod::applySettings(const FreeDVDemodSettings& settings, bool force)
{
qDebug() << "FreeDVDemod::applySettings:"
<< " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
<< " m_volume: " << settings.m_volume
<< " m_volumeIn: " << settings.m_volumeIn
<< " m_spanLog2: " << settings.m_spanLog2
<< " m_audioMute: " << settings.m_audioMute
<< " m_agcActive: " << settings.m_agc
<< " m_audioDeviceName: " << settings.m_audioDeviceName
<< " m_useReverseAPI: " << settings.m_useReverseAPI
<< " m_reverseAPIAddress: " << settings.m_reverseAPIAddress
<< " m_reverseAPIPort: " << settings.m_reverseAPIPort
<< " m_reverseAPIDeviceIndex: " << settings.m_reverseAPIDeviceIndex
<< " m_reverseAPIChannelIndex: " << settings.m_reverseAPIChannelIndex
<< " force: " << force;
QList<QString> reverseAPIKeys;
if((m_settings.m_inputFrequencyOffset != settings.m_inputFrequencyOffset) || force) {
reverseAPIKeys.append("inputFrequencyOffset");
}
if ((m_settings.m_volume != settings.m_volume) || force)
{
reverseAPIKeys.append("volume");
m_volume = settings.m_volume;
m_volume /= 4.0; // for 3276.8
}
if ((m_settings.m_volumeIn != settings.m_volumeIn) || force)
{
reverseAPIKeys.append("volumeIn");
}
if ((settings.m_audioDeviceName != m_settings.m_audioDeviceName) || force)
{
reverseAPIKeys.append("audioDeviceName");
AudioDeviceManager *audioDeviceManager = DSPEngine::instance()->getAudioDeviceManager();
int audioDeviceIndex = audioDeviceManager->getOutputDeviceIndex(settings.m_audioDeviceName);
audioDeviceManager->addAudioSink(&m_audioFifo, getInputMessageQueue(), audioDeviceIndex);
uint32_t audioSampleRate = audioDeviceManager->getOutputSampleRate(audioDeviceIndex);
if (m_audioSampleRate != audioSampleRate) {
applyAudioSampleRate(audioSampleRate);
}
}
if ((m_settings.m_spanLog2 != settings.m_spanLog2) || force) {
reverseAPIKeys.append("spanLog2");
}
if ((m_settings.m_audioMute != settings.m_audioMute) || force) {
reverseAPIKeys.append("audioMute");
}
if ((m_settings.m_agc != settings.m_agc) || force) {
reverseAPIKeys.append("agc");
}
if ((settings.m_freeDVMode != m_settings.m_freeDVMode) || force) {
applyFreeDVMode(settings.m_freeDVMode);
}
m_spanLog2 = settings.m_spanLog2;
m_audioMute = settings.m_audioMute;
m_agcActive = settings.m_agc;
if (settings.m_useReverseAPI)
{
bool fullUpdate = ((m_settings.m_useReverseAPI != settings.m_useReverseAPI) && settings.m_useReverseAPI) ||
(m_settings.m_reverseAPIAddress != settings.m_reverseAPIAddress) ||
(m_settings.m_reverseAPIPort != settings.m_reverseAPIPort) ||
(m_settings.m_reverseAPIDeviceIndex != settings.m_reverseAPIDeviceIndex) ||
(m_settings.m_reverseAPIChannelIndex != settings.m_reverseAPIChannelIndex);
webapiReverseSendSettings(reverseAPIKeys, settings, fullUpdate || force);
}
m_settings = settings;
}
void FreeDVDemod::getSNRLevels(double& avg, double& peak, int& nbSamples)
{
if (m_freeDVSNR.m_n > 0)
{
avg = CalcDb::dbPower(m_freeDVSNR.m_sum / m_freeDVSNR.m_n);
peak = m_freeDVSNR.m_peak;
nbSamples = m_freeDVSNR.m_n;
m_freeDVSNR.m_reset = true;
}
else
{
avg = 0.0;
peak = 0.0;
nbSamples = 1;
}
}
QByteArray FreeDVDemod::serialize() const
{
return m_settings.serialize();
}
bool FreeDVDemod::deserialize(const QByteArray& data)
{
if (m_settings.deserialize(data))
{
MsgConfigureFreeDVDemod *msg = MsgConfigureFreeDVDemod::create(m_settings, true);
m_inputMessageQueue.push(msg);
return true;
}
else
{
m_settings.resetToDefaults();
MsgConfigureFreeDVDemod *msg = MsgConfigureFreeDVDemod::create(m_settings, true);
m_inputMessageQueue.push(msg);
return false;
}
}
int FreeDVDemod::webapiSettingsGet(
SWGSDRangel::SWGChannelSettings& response,
QString& errorMessage)
{
(void) errorMessage;
response.setFreeDvDemodSettings(new SWGSDRangel::SWGFreeDVDemodSettings());
response.getFreeDvDemodSettings()->init();
webapiFormatChannelSettings(response, m_settings);
return 200;
}
int FreeDVDemod::webapiSettingsPutPatch(
bool force,
const QStringList& channelSettingsKeys,
SWGSDRangel::SWGChannelSettings& response,
QString& errorMessage)
{
(void) errorMessage;
FreeDVDemodSettings settings = m_settings;
bool frequencyOffsetChanged = false;
if (channelSettingsKeys.contains("inputFrequencyOffset"))
{
settings.m_inputFrequencyOffset = response.getFreeDvDemodSettings()->getInputFrequencyOffset();
frequencyOffsetChanged = true;
}
if (channelSettingsKeys.contains("freeDVMode")) {
settings.m_freeDVMode = (FreeDVDemodSettings::FreeDVMode) response.getFreeDvDemodSettings()->getFreeDvMode();
}
if (channelSettingsKeys.contains("volume")) {
settings.m_volume = response.getFreeDvDemodSettings()->getVolume();
}
if (channelSettingsKeys.contains("volumeIn")) {
settings.m_volumeIn = response.getFreeDvDemodSettings()->getVolumeIn();
}
if (channelSettingsKeys.contains("spanLog2")) {
settings.m_spanLog2 = response.getFreeDvDemodSettings()->getSpanLog2();
}
if (channelSettingsKeys.contains("audioMute")) {
settings.m_audioMute = response.getFreeDvDemodSettings()->getAudioMute() != 0;
}
if (channelSettingsKeys.contains("agc")) {
settings.m_agc = response.getFreeDvDemodSettings()->getAgc() != 0;
}
if (channelSettingsKeys.contains("rgbColor")) {
settings.m_rgbColor = response.getFreeDvDemodSettings()->getRgbColor();
}
if (channelSettingsKeys.contains("title")) {
settings.m_title = *response.getFreeDvDemodSettings()->getTitle();
}
if (channelSettingsKeys.contains("audioDeviceName")) {
settings.m_audioDeviceName = *response.getFreeDvDemodSettings()->getAudioDeviceName();
}
if (channelSettingsKeys.contains("useReverseAPI")) {
settings.m_useReverseAPI = response.getFreeDvDemodSettings()->getUseReverseApi() != 0;
}
if (channelSettingsKeys.contains("reverseAPIAddress")) {
settings.m_reverseAPIAddress = *response.getFreeDvDemodSettings()->getReverseApiAddress();
}
if (channelSettingsKeys.contains("reverseAPIPort")) {
settings.m_reverseAPIPort = response.getFreeDvDemodSettings()->getReverseApiPort();
}
if (channelSettingsKeys.contains("reverseAPIDeviceIndex")) {
settings.m_reverseAPIDeviceIndex = response.getFreeDvDemodSettings()->getReverseApiDeviceIndex();
}
if (channelSettingsKeys.contains("reverseAPIChannelIndex")) {
settings.m_reverseAPIChannelIndex = response.getFreeDvDemodSettings()->getReverseApiChannelIndex();
}
if (frequencyOffsetChanged)
{
MsgConfigureChannelizer* channelConfigMsg = MsgConfigureChannelizer::create(
m_modemSampleRate, settings.m_inputFrequencyOffset);
m_inputMessageQueue.push(channelConfigMsg);
}
MsgConfigureFreeDVDemod *msg = MsgConfigureFreeDVDemod::create(settings, force);
m_inputMessageQueue.push(msg);
qDebug("FreeDVDemod::webapiSettingsPutPatch: forward to GUI: %p", m_guiMessageQueue);
if (m_guiMessageQueue) // forward to GUI if any
{
MsgConfigureFreeDVDemod *msgToGUI = MsgConfigureFreeDVDemod::create(settings, force);
m_guiMessageQueue->push(msgToGUI);
}
webapiFormatChannelSettings(response, settings);
return 200;
}
int FreeDVDemod::webapiReportGet(
SWGSDRangel::SWGChannelReport& response,
QString& errorMessage)
{
(void) errorMessage;
response.setFreeDvDemodReport(new SWGSDRangel::SWGFreeDVDemodReport());
response.getFreeDvDemodReport()->init();
webapiFormatChannelReport(response);
return 200;
}
void FreeDVDemod::webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const FreeDVDemodSettings& settings)
{
response.getFreeDvDemodSettings()->setAudioMute(settings.m_audioMute ? 1 : 0);
response.getFreeDvDemodSettings()->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
response.getFreeDvDemodSettings()->setVolume(settings.m_volume);
response.getFreeDvDemodSettings()->setVolumeIn(settings.m_volumeIn);
response.getFreeDvDemodSettings()->setSpanLog2(settings.m_spanLog2);
response.getFreeDvDemodSettings()->setAudioMute(settings.m_audioMute ? 1 : 0);
response.getFreeDvDemodSettings()->setAgc(settings.m_agc ? 1 : 0);
response.getFreeDvDemodSettings()->setRgbColor(settings.m_rgbColor);
response.getFreeDvDemodSettings()->setFreeDvMode((int) settings.m_freeDVMode);
if (response.getFreeDvDemodSettings()->getTitle()) {
*response.getFreeDvDemodSettings()->getTitle() = settings.m_title;
} else {
response.getFreeDvDemodSettings()->setTitle(new QString(settings.m_title));
}
if (response.getFreeDvDemodSettings()->getAudioDeviceName()) {
*response.getFreeDvDemodSettings()->getAudioDeviceName() = settings.m_audioDeviceName;
} else {
response.getFreeDvDemodSettings()->setAudioDeviceName(new QString(settings.m_audioDeviceName));
}
response.getFreeDvDemodSettings()->setUseReverseApi(settings.m_useReverseAPI ? 1 : 0);
if (response.getFreeDvDemodSettings()->getReverseApiAddress()) {
*response.getFreeDvDemodSettings()->getReverseApiAddress() = settings.m_reverseAPIAddress;
} else {
response.getFreeDvDemodSettings()->setReverseApiAddress(new QString(settings.m_reverseAPIAddress));
}
response.getFreeDvDemodSettings()->setReverseApiPort(settings.m_reverseAPIPort);
response.getFreeDvDemodSettings()->setReverseApiDeviceIndex(settings.m_reverseAPIDeviceIndex);
response.getFreeDvDemodSettings()->setReverseApiChannelIndex(settings.m_reverseAPIChannelIndex);
}
void FreeDVDemod::webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response)
{
double magsqAvg, magsqPeak;
int nbMagsqSamples;
getMagSqLevels(magsqAvg, magsqPeak, nbMagsqSamples);
response.getFreeDvDemodReport()->setChannelPowerDb(CalcDb::dbPower(magsqAvg));
response.getFreeDvDemodReport()->setSquelch(m_audioActive ? 1 : 0);
response.getFreeDvDemodReport()->setAudioSampleRate(m_audioSampleRate);
response.getFreeDvDemodReport()->setChannelSampleRate(m_inputSampleRate);
}
void FreeDVDemod::webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const FreeDVDemodSettings& settings, bool force)
{
SWGSDRangel::SWGChannelSettings *swgChannelSettings = new SWGSDRangel::SWGChannelSettings();
swgChannelSettings->setDirection(0); // single sink (Rx)
swgChannelSettings->setOriginatorChannelIndex(getIndexInDeviceSet());
swgChannelSettings->setOriginatorDeviceSetIndex(getDeviceSetIndex());
swgChannelSettings->setChannelType(new QString("SSBDemod"));
swgChannelSettings->setFreeDvDemodSettings(new SWGSDRangel::SWGFreeDVDemodSettings());
SWGSDRangel::SWGFreeDVDemodSettings *swgFreeDVDemodSettings = swgChannelSettings->getFreeDvDemodSettings();
// transfer data that has been modified. When force is on transfer all data except reverse API data
if (channelSettingsKeys.contains("inputFrequencyOffset") || force) {
swgFreeDVDemodSettings->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
}
if (channelSettingsKeys.contains("freeDVMode") || force) {
swgFreeDVDemodSettings->setFreeDvMode((int) settings.m_freeDVMode);
}
if (channelSettingsKeys.contains("volume") || force) {
swgFreeDVDemodSettings->setVolume(settings.m_volume);
}
if (channelSettingsKeys.contains("volumeIn") || force) {
swgFreeDVDemodSettings->setVolumeIn(settings.m_volumeIn);
}
if (channelSettingsKeys.contains("spanLog2") || force) {
swgFreeDVDemodSettings->setSpanLog2(settings.m_spanLog2);
}
if (channelSettingsKeys.contains("audioMute") || force) {
swgFreeDVDemodSettings->setAudioMute(settings.m_audioMute ? 1 : 0);
}
if (channelSettingsKeys.contains("agc") || force) {
swgFreeDVDemodSettings->setAgc(settings.m_agc ? 1 : 0);
}
if (channelSettingsKeys.contains("rgbColor") || force) {
swgFreeDVDemodSettings->setRgbColor(settings.m_rgbColor);
}
if (channelSettingsKeys.contains("title") || force) {
swgFreeDVDemodSettings->setTitle(new QString(settings.m_title));
}
if (channelSettingsKeys.contains("audioDeviceName") || force) {
swgFreeDVDemodSettings->setAudioDeviceName(new QString(settings.m_audioDeviceName));
}
QString channelSettingsURL = QString("http://%1:%2/sdrangel/deviceset/%3/channel/%4/settings")
.arg(settings.m_reverseAPIAddress)
.arg(settings.m_reverseAPIPort)
.arg(settings.m_reverseAPIDeviceIndex)
.arg(settings.m_reverseAPIChannelIndex);
m_networkRequest.setUrl(QUrl(channelSettingsURL));
m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
QBuffer *buffer=new QBuffer();
buffer->open((QBuffer::ReadWrite));
buffer->write(swgChannelSettings->asJson().toUtf8());
buffer->seek(0);
// Always use PATCH to avoid passing reverse API settings
m_networkManager->sendCustomRequest(m_networkRequest, "PATCH", buffer);
delete swgChannelSettings;
}
void FreeDVDemod::networkManagerFinished(QNetworkReply *reply)
{
QNetworkReply::NetworkError replyError = reply->error();
if (replyError)
{
qWarning() << "FreeDVDemod::networkManagerFinished:"
<< " error(" << (int) replyError
<< "): " << replyError
<< ": " << reply->errorString();
return;
}
QString answer = reply->readAll();
answer.chop(1); // remove last \n
qDebug("FreeDVDemod::networkManagerFinished: reply:\n%s", answer.toStdString().c_str());
}
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