mirror of
https://github.com/f4exb/sdrangel.git
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309 lines
12 KiB
C++
309 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
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// //
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// SDRdaemon source channel (Tx) //
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// //
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// SDRdaemon is a detached SDR front end that handles the interface with a //
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// physical device and sends or receives the I/Q samples stream to or from a //
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// SDRangel instance via UDP. It is controlled via a Web REST API. //
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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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// //
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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 <boost/crc.hpp>
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#include <boost/cstdint.hpp>
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#include <QDebug>
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#include "util/simpleserializer.h"
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#include "dsp/threadedbasebandsamplesource.h"
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#include "dsp/upchannelizer.h"
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#include "dsp/devicesamplesink.h"
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#include "device/devicesinkapi.h"
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#include "sdrdaemonchannelsource.h"
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#include "channel/sdrdaemonchannelsourcethread.h"
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#include "channel/sdrdaemondatablock.h"
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MESSAGE_CLASS_DEFINITION(SDRDaemonChannelSource::MsgConfigureSDRDaemonChannelSource, Message)
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const QString SDRDaemonChannelSource::m_channelIdURI = "sdrangel.channel.sdrdaemonsource";
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const QString SDRDaemonChannelSource::m_channelId = "SDRDaemonChannelSource";
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SDRDaemonChannelSource::SDRDaemonChannelSource(DeviceSinkAPI *deviceAPI) :
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ChannelSourceAPI(m_channelIdURI),
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m_deviceAPI(deviceAPI),
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m_sourceThread(0),
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m_running(false),
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m_samplesCount(0),
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m_dataAddress("127.0.0.1"),
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m_dataPort(9090)
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{
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setObjectName(m_channelId);
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m_channelizer = new UpChannelizer(this);
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m_threadedChannelizer = new ThreadedBasebandSampleSource(m_channelizer, this);
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m_deviceAPI->addThreadedSource(m_threadedChannelizer);
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m_deviceAPI->addChannelAPI(this);
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connect(&m_dataQueue, SIGNAL(dataBlockEnqueued()), this, SLOT(handleData()), Qt::QueuedConnection);
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m_cm256p = m_cm256.isInitialized() ? &m_cm256 : 0;
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m_currentMeta.init();
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}
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SDRDaemonChannelSource::~SDRDaemonChannelSource()
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{
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m_deviceAPI->removeChannelAPI(this);
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m_deviceAPI->removeThreadedSource(m_threadedChannelizer);
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delete m_threadedChannelizer;
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delete m_channelizer;
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}
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void SDRDaemonChannelSource::pull(Sample& sample)
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{
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sample.m_real = 0.0f;
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sample.m_imag = 0.0f;
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m_samplesCount++;
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}
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void SDRDaemonChannelSource::start()
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{
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qDebug("SDRDaemonChannelSink::start");
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if (m_running) {
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stop();
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}
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m_sourceThread = new SDRDaemonChannelSourceThread(&m_dataQueue);
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m_sourceThread->startStop(true);
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m_sourceThread->dataBind(m_dataAddress, m_dataPort);
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m_running = true;
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}
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void SDRDaemonChannelSource::stop()
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{
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qDebug("SDRDaemonChannelSink::stop");
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if (m_sourceThread != 0)
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{
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m_sourceThread->startStop(false);
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m_sourceThread->deleteLater();
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m_sourceThread = 0;
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}
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m_running = false;
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}
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bool SDRDaemonChannelSource::handleMessage(const Message& cmd __attribute__((unused)))
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{
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if (UpChannelizer::MsgChannelizerNotification::match(cmd))
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{
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UpChannelizer::MsgChannelizerNotification& notif = (UpChannelizer::MsgChannelizerNotification&) cmd;
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qDebug() << "SDRDaemonChannelSource::handleMessage: UpChannelizer::MsgChannelizerNotification:"
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<< " basebandSampleRate: " << notif.getBasebandSampleRate()
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<< " outputSampleRate: " << notif.getSampleRate()
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<< " inputFrequencyOffset: " << notif.getFrequencyOffset();
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//applyChannelSettings(notif.getBasebandSampleRate(), notif.getSampleRate(), notif.getFrequencyOffset());
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return true;
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}
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else if (MsgConfigureSDRDaemonChannelSource::match(cmd))
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{
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MsgConfigureSDRDaemonChannelSource& cfg = (MsgConfigureSDRDaemonChannelSource&) cmd;
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qDebug() << "SDRDaemonChannelSource::handleMessage: MsgConfigureSDRDaemonChannelSource";
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applySettings(cfg.getSettings(), cfg.getForce());
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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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QByteArray SDRDaemonChannelSource::serialize() const
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{
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return m_settings.serialize();
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}
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bool SDRDaemonChannelSource::deserialize(const QByteArray& data __attribute__((unused)))
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{
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if (m_settings.deserialize(data))
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{
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MsgConfigureSDRDaemonChannelSource *msg = MsgConfigureSDRDaemonChannelSource::create(m_settings, true);
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m_inputMessageQueue.push(msg);
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return true;
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}
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else
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{
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m_settings.resetToDefaults();
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MsgConfigureSDRDaemonChannelSource *msg = MsgConfigureSDRDaemonChannelSource::create(m_settings, true);
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m_inputMessageQueue.push(msg);
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return false;
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}
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}
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void SDRDaemonChannelSource::applySettings(const SDRDaemonChannelSourceSettings& settings, bool force)
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{
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qDebug() << "SDRDaemonChannelSource::applySettings:"
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<< " m_dataAddress: " << settings.m_dataAddress
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<< " m_dataPort: " << settings.m_dataPort
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<< " force: " << force;
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bool change = false;
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if ((m_settings.m_dataAddress != settings.m_dataAddress) || force)
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{
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m_dataAddress = settings.m_dataAddress;
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change = true;
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}
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if ((m_settings.m_dataPort != settings.m_dataPort) || force)
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{
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m_dataPort = settings.m_dataPort;
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change = true;
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}
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if (change && m_sourceThread) {
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m_sourceThread->dataBind(m_dataAddress, m_dataPort);
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}
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m_settings = settings;
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}
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bool SDRDaemonChannelSource::handleDataBlock(SDRDaemonDataBlock& dataBlock)
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{
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if (dataBlock.m_rxControlBlock.m_blockCount < SDRDaemonNbOrginalBlocks)
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{
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qWarning("SDRDaemonChannelSource::handleDataBlock: incomplete data block: not processing");
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}
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else
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{
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int blockCount = 0;
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for (int blockIndex = 0; blockIndex < 256; blockIndex++)
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{
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if ((blockIndex == 0) && (dataBlock.m_rxControlBlock.m_metaRetrieved))
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{
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m_cm256DescriptorBlocks[blockCount].Index = 0;
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m_cm256DescriptorBlocks[blockCount].Block = (void *) &(dataBlock.m_superBlocks[0].m_protectedBlock);
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blockCount++;
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}
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else if (dataBlock.m_superBlocks[blockIndex].m_header.m_blockIndex != 0)
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{
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m_cm256DescriptorBlocks[blockCount].Index = dataBlock.m_superBlocks[blockIndex].m_header.m_blockIndex;
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m_cm256DescriptorBlocks[blockCount].Block = (void *) &(dataBlock.m_superBlocks[blockIndex].m_protectedBlock);
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blockCount++;
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}
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}
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//qDebug("SDRDaemonChannelSource::handleDataBlock: frame: %u blocks: %d", dataBlock.m_rxControlBlock.m_frameIndex, blockCount);
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// Need to use the CM256 recovery
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if (m_cm256p &&(dataBlock.m_rxControlBlock.m_originalCount < SDRDaemonNbOrginalBlocks))
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{
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qDebug("SDRDaemonChannelSource::handleDataBlock: %d recovery blocks", dataBlock.m_rxControlBlock.m_recoveryCount);
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CM256::cm256_encoder_params paramsCM256;
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paramsCM256.BlockBytes = sizeof(SDRDaemonProtectedBlock); // never changes
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paramsCM256.OriginalCount = SDRDaemonNbOrginalBlocks; // never changes
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if (m_currentMeta.m_tv_sec == 0) {
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paramsCM256.RecoveryCount = dataBlock.m_rxControlBlock.m_recoveryCount;
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} else {
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paramsCM256.RecoveryCount = m_currentMeta.m_nbFECBlocks;
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}
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if (m_cm256.cm256_decode(paramsCM256, m_cm256DescriptorBlocks)) // CM256 decode
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{
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qWarning() << "SDRDaemonChannelSource::handleDataBlock: decode CM256 error:"
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<< " m_originalCount: " << dataBlock.m_rxControlBlock.m_originalCount
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<< " m_recoveryCount: " << dataBlock.m_rxControlBlock.m_recoveryCount;
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}
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else
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{
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for (int ir = 0; ir < dataBlock.m_rxControlBlock.m_recoveryCount; ir++) // restore missing blocks
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{
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int recoveryIndex = SDRDaemonNbOrginalBlocks - dataBlock.m_rxControlBlock.m_recoveryCount + ir;
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int blockIndex = m_cm256DescriptorBlocks[recoveryIndex].Index;
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SDRDaemonProtectedBlock *recoveredBlock =
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(SDRDaemonProtectedBlock *) m_cm256DescriptorBlocks[recoveryIndex].Block;
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memcpy((void *) &(dataBlock.m_superBlocks[blockIndex].m_protectedBlock), recoveredBlock, sizeof(SDRDaemonProtectedBlock));
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if ((blockIndex == 0) && !dataBlock.m_rxControlBlock.m_metaRetrieved) {
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dataBlock.m_rxControlBlock.m_metaRetrieved = true;
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}
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}
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}
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}
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// Validate block zero and retrieve its data
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if (dataBlock.m_rxControlBlock.m_metaRetrieved)
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{
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SDRDaemonMetaDataFEC *metaData = (SDRDaemonMetaDataFEC *) &(dataBlock.m_superBlocks[0].m_protectedBlock);
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boost::crc_32_type crc32;
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crc32.process_bytes(metaData, 20);
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if (crc32.checksum() == metaData->m_crc32)
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{
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if (!(m_currentMeta == *metaData))
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{
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printMeta("SDRDaemonChannelSource::handleDataBlock", metaData);
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if (m_currentMeta.m_centerFrequency != metaData->m_centerFrequency) {
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m_deviceAPI->getSampleSink()->setCenterFrequency(metaData->m_centerFrequency);
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}
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if (m_currentMeta.m_sampleRate != metaData->m_sampleRate) {
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m_channelizer->configure(m_channelizer->getInputMessageQueue(), metaData->m_sampleRate, 0);
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}
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}
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m_currentMeta = *metaData;
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}
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else
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{
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qWarning() << "SDRDaemonChannelSource::handleDataBlock: recovered meta: invalid CRC32";
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}
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}
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}
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//TODO: Push into R/W buffer
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return true;
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}
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void SDRDaemonChannelSource::handleData()
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{
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SDRDaemonDataBlock* dataBlock;
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while (m_running && ((dataBlock = m_dataQueue.pop()) != 0))
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{
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if (handleDataBlock(*dataBlock))
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{
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delete dataBlock;
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}
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}
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}
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void SDRDaemonChannelSource::printMeta(const QString& header, SDRDaemonMetaDataFEC *metaData)
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{
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qDebug().noquote() << header << ": "
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<< "|" << metaData->m_centerFrequency
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<< ":" << metaData->m_sampleRate
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<< ":" << (int) (metaData->m_sampleBytes & 0xF)
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<< ":" << (int) metaData->m_sampleBits
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<< ":" << (int) metaData->m_nbOriginalBlocks
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<< ":" << (int) metaData->m_nbFECBlocks
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<< "|" << metaData->m_tv_sec
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<< ":" << metaData->m_tv_usec
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<< "|";
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}
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