///////////////////////////////////////////////////////////////////////////////////
// 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 <QMutexLocker>
#include <QThread>
#include <boost/crc.hpp>
#include <boost/cstdint.hpp>
#include "dsp/hbfilterchainconverter.h"
#include "util/timeutil.h"
#include "remotesinksender.h"
#include "remotesinksink.h"
RemoteSinkSink::RemoteSinkSink() :
m_running(false),
m_remoteSinkSender(nullptr),
m_txBlockIndex(0),
m_frameCount(0),
m_sampleIndex(0),
m_dataFrame(nullptr),
m_deviceCenterFrequency(0),
m_frequencyOffset(0),
m_basebandSampleRate(48000),
m_nbBlocksFEC(0),
m_nbTxBytes(SDR_RX_SAMP_SZ <= 16 ? 2 : 4),
m_dataAddress("127.0.0.1"),
m_dataPort(9090)
{
qDebug("RemoteSinkSink::RemoteSinkSink");
applySettings(m_settings, true);
}
RemoteSinkSink::~RemoteSinkSink()
{
qDebug("RemoteSinkSink::~RemoteSinkSink");
stop();
}
void RemoteSinkSink::start()
{
qDebug("RemoteSinkSink::start");
if (m_running) {
stop();
}
m_remoteSinkSender = new RemoteSinkSender();
m_remoteSinkSender->moveToThread(&m_senderThread);
startSender();
m_running = true;
}
void RemoteSinkSink::stop()
{
qDebug("RemoteSinkSink::stop");
if (m_remoteSinkSender)
{
stopSender();
m_remoteSinkSender->deleteLater();
m_remoteSinkSender = nullptr;
}
m_running = false;
}
void RemoteSinkSink::startSender()
{
qDebug("RemoteSinkSink::startSender");
m_remoteSinkSender->startWork();
m_senderThread.start();
}
void RemoteSinkSink::stopSender()
{
qDebug("RemoteSinkSink::stopSender");
m_remoteSinkSender->stopWork();
m_senderThread.quit();
m_senderThread.wait();
}
void RemoteSinkSink::init()
{
m_dataFrame = nullptr;
m_txBlockIndex = 0;
m_frameCount = 0;
m_sampleIndex = 0;
}
void RemoteSinkSink::setNbBlocksFEC(int nbBlocksFEC)
{
qDebug() << "RemoteSinkSink::setNbBlocksFEC: nbBlocksFEC: " << nbBlocksFEC;
m_nbBlocksFEC = nbBlocksFEC;
}
void RemoteSinkSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
{
SampleVector::const_iterator it = begin;
while (it != end)
{
int inSamplesIndex = it - begin;
int inRemainingSamples = end - it;
if (m_txBlockIndex == 0)
{
// struct timeval tv;
RemoteMetaDataFEC metaData;
uint64_t nowus = TimeUtil::nowus();
// gettimeofday(&tv, 0);
metaData.m_centerFrequency = m_deviceCenterFrequency + m_frequencyOffset;
metaData.m_sampleRate = m_basebandSampleRate / (1<<m_settings.m_log2Decim);
metaData.m_sampleBytes = m_nbTxBytes;
metaData.m_sampleBits = getNbSampleBits();
metaData.m_nbOriginalBlocks = RemoteNbOrginalBlocks;
metaData.m_nbFECBlocks = m_nbBlocksFEC;
metaData.m_deviceIndex = m_deviceIndex % 256;
metaData.m_channelIndex = m_channelIndex % 256;
metaData.m_tv_sec = nowus / 1000000UL; // tv.tv_sec;
metaData.m_tv_usec = nowus % 1000000UL; // tv.tv_usec;
if (!m_dataFrame) { // on the very first cycle there is no data block allocated
m_dataFrame = m_remoteSinkSender->getDataFrame(); // ask a new block to sender
}
boost::crc_32_type crc32;
crc32.process_bytes(&metaData, sizeof(RemoteMetaDataFEC)-4);
metaData.m_crc32 = crc32.checksum();
RemoteSuperBlock& superBlock = m_dataFrame->m_superBlocks[0]; // first block
superBlock.init();
superBlock.m_header.m_frameIndex = m_frameCount;
superBlock.m_header.m_blockIndex = m_txBlockIndex;
superBlock.m_header.m_sampleBytes = m_nbTxBytes;
superBlock.m_header.m_sampleBits = getNbSampleBits();
RemoteMetaDataFEC *destMeta = (RemoteMetaDataFEC *) &superBlock.m_protectedBlock;
*destMeta = metaData;
if (!(metaData == m_currentMetaFEC))
{
qDebug() << "RemoteSinkSink::feed: meta: "
<< "|" << metaData.m_centerFrequency
<< ":" << metaData.m_sampleRate
<< ":" << (int) (metaData.m_sampleBytes & 0xF)
<< ":" << (int) metaData.m_sampleBits
<< "|" << (int) metaData.m_nbOriginalBlocks
<< ":" << (int) metaData.m_nbFECBlocks
<< "|" << metaData.m_deviceIndex
<< ":" << metaData.m_channelIndex
<< "|" << metaData.m_tv_sec
<< ":" << metaData.m_tv_usec;
m_currentMetaFEC = metaData;
}
m_txBlockIndex = 1; // next Tx block with data
} // block zero
// handle different sample sizes...
int samplesPerBlock = RemoteNbBytesPerBlock / (2 * m_nbTxBytes); // two I or Q samples
if (m_sampleIndex + inRemainingSamples < samplesPerBlock) // there is still room in the current super block
{
convertSampleToData(begin + inSamplesIndex, inRemainingSamples, false);
// memcpy((void *) &m_superBlock.m_protectedBlock.buf[m_sampleIndex*sizeof(Sample)],
// (const void *) &(*(begin+inSamplesIndex)),
// inRemainingSamples * sizeof(Sample));
m_sampleIndex += inRemainingSamples;
it = end; // all input samples are consumed
}
else // complete super block and initiate the next if not end of frame
{
convertSampleToData(begin + inSamplesIndex, samplesPerBlock - m_sampleIndex, false);
// memcpy((void *) &m_superBlock.m_protectedBlock.buf[m_sampleIndex*sizeof(Sample)],
// (const void *) &(*(begin+inSamplesIndex)),
// (samplesPerBlock - m_sampleIndex) * sizeof(Sample));
it += samplesPerBlock - m_sampleIndex;
m_sampleIndex = 0;
m_superBlock.m_header.m_frameIndex = m_frameCount;
m_superBlock.m_header.m_blockIndex = m_txBlockIndex;
m_superBlock.m_header.m_sampleBytes = m_nbTxBytes;
m_superBlock.m_header.m_sampleBits = getNbSampleBits();
m_dataFrame->m_superBlocks[m_txBlockIndex] = m_superBlock;
if (m_txBlockIndex == RemoteNbOrginalBlocks - 1) // frame complete
{
m_dataFrame->m_txControlBlock.m_frameIndex = m_frameCount;
m_dataFrame->m_txControlBlock.m_processed = false;
m_dataFrame->m_txControlBlock.m_complete = true;
m_dataFrame->m_txControlBlock.m_nbBlocksFEC = m_nbBlocksFEC;
m_dataFrame->m_txControlBlock.m_dataAddress = m_dataAddress;
m_dataFrame->m_txControlBlock.m_dataPort = m_dataPort;
m_dataFrame = m_remoteSinkSender->getDataFrame(); // ask a new block to sender
m_txBlockIndex = 0;
m_frameCount++;
}
else
{
m_txBlockIndex++;
}
}
}
}
void RemoteSinkSink::applySettings(const RemoteSinkSettings& settings, bool force)
{
qDebug() << "RemoteSinkSink::applySettings:"
<< " m_nbFECBlocks: " << settings.m_nbFECBlocks
<< " m_dataAddress: " << settings.m_dataAddress
<< " m_dataPort: " << settings.m_dataPort
<< " m_streamIndex: " << settings.m_streamIndex
<< " force: " << force;
if ((m_settings.m_dataAddress != settings.m_dataAddress) || force) {
m_dataAddress = settings.m_dataAddress;
}
if ((m_settings.m_dataPort != settings.m_dataPort) || force) {
m_dataPort = settings.m_dataPort;
}
if ((m_settings.m_log2Decim != settings.m_log2Decim)
|| (m_settings.m_filterChainHash != settings.m_filterChainHash)
|| (m_settings.m_nbFECBlocks != settings.m_nbFECBlocks) || force)
{
double shiftFactor = HBFilterChainConverter::getShiftFactor(settings.m_log2Decim, settings.m_filterChainHash);
m_frequencyOffset = round(shiftFactor*m_basebandSampleRate);
setNbBlocksFEC(settings.m_nbFECBlocks);
}
m_settings = settings;
}
void RemoteSinkSink::applyBasebandSampleRate(uint32_t sampleRate)
{
m_basebandSampleRate = sampleRate;
double shiftFactor = HBFilterChainConverter::getShiftFactor(m_settings.m_log2Decim, m_settings.m_filterChainHash);
m_frequencyOffset = round(shiftFactor*m_basebandSampleRate);
}
uint32_t RemoteSinkSink::getNbSampleBits()
{
if (m_nbTxBytes == 1) {
return 8;
} else if (m_nbTxBytes == 2) {
return 16;
} else if (m_nbTxBytes == 4) {
return 24;
} else {
return 16;
}
}