/////////////////////////////////////////////////////////////////////////////////// // 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 . // /////////////////////////////////////////////////////////////////////////////////// #include #include #include #include #include "dsp/hbfilterchainconverter.h" #include "util/timeutil.h" #include "remotesinksender.h" #include "remotesinksink.h" RemoteSinkSink::RemoteSinkSink() : 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_dataAddress("127.0.0.1"), m_dataPort(9090) { qDebug("RemoteSinkSink::RemoteSinkSink"); m_senderThread = new QThread(this); m_remoteSinkSender = new RemoteSinkSender(); m_remoteSinkSender->moveToThread(m_senderThread); applySettings(m_settings, true); } RemoteSinkSink::~RemoteSinkSink() { qDebug("RemoteSinkSink::~RemoteSinkSink"); delete m_remoteSinkSender; delete m_senderThread; } void RemoteSinkSink::startSender() { qDebug("RemoteSinkSink::startSender"); m_senderThread->start(); } void RemoteSinkSink::stopSender() { qDebug("RemoteSinkSink::stopSender"); m_senderThread->exit(); m_senderThread->wait(); } 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<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 = (SDR_RX_SAMP_SZ <= 16 ? 2 : 4); superBlock.m_header.m_sampleBits = SDR_RX_SAMP_SZ; 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_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 / (SDR_RX_SAMP_SZ <= 16 ? 4 : 8); // two I or Q samples if (m_sampleIndex + inRemainingSamples < samplesPerBlock) // there is still room in the current super block { 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 { 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 = (SDR_RX_SAMP_SZ <= 16 ? 2 : 4); m_superBlock.m_header.m_sampleBits = SDR_RX_SAMP_SZ; 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); }