mirror of
https://github.com/f4exb/sdrangel.git
synced 2025-10-31 04:50:29 -04:00
339 lines
12 KiB
C++
339 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017 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 //
|
|
// //
|
|
// 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 <QDebug>
|
|
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
#include <boost/crc.hpp>
|
|
#include <boost/cstdint.hpp>
|
|
|
|
#include "udpsinkfec.h"
|
|
|
|
MESSAGE_CLASS_DEFINITION(UDPSinkFECWorker::MsgUDPFECEncodeAndSend, Message)
|
|
MESSAGE_CLASS_DEFINITION(UDPSinkFECWorker::MsgConfigureRemoteAddress, Message)
|
|
|
|
|
|
UDPSinkFEC::UDPSinkFEC() :
|
|
m_centerFrequency(100000),
|
|
m_sampleRate(48000),
|
|
m_sampleBytes(1),
|
|
m_sampleBits(8),
|
|
m_nbSamples(0),
|
|
m_nbBlocksFEC(0),
|
|
m_txDelay(0),
|
|
m_txBlockIndex(0),
|
|
m_txBlocksIndex(0),
|
|
m_frameCount(0),
|
|
m_sampleIndex(0)
|
|
{
|
|
m_currentMetaFEC.init();
|
|
m_bufMeta = new uint8_t[m_udpSize];
|
|
m_buf = new uint8_t[m_udpSize];
|
|
m_udpThread = new QThread();
|
|
m_udpWorker = new UDPSinkFECWorker();
|
|
|
|
m_udpWorker->moveToThread(m_udpThread);
|
|
|
|
connect(m_udpThread, SIGNAL(started()), m_udpWorker, SLOT(process()));
|
|
connect(m_udpWorker, SIGNAL(finished()), m_udpThread, SLOT(quit()));
|
|
|
|
m_udpThread->start();
|
|
}
|
|
|
|
UDPSinkFEC::~UDPSinkFEC()
|
|
{
|
|
m_udpWorker->stop();
|
|
m_udpThread->wait();
|
|
|
|
delete[] m_buf;
|
|
delete[] m_bufMeta;
|
|
delete m_udpWorker;
|
|
delete m_udpThread;
|
|
}
|
|
|
|
void UDPSinkFEC::setTxDelay(uint32_t txDelay)
|
|
{
|
|
qDebug() << "UDPSinkFEC::setTxDelay: txDelay: " << txDelay;
|
|
m_txDelay = txDelay;
|
|
}
|
|
|
|
void UDPSinkFEC::setNbBlocksFEC(uint32_t nbBlocksFEC)
|
|
{
|
|
qDebug() << "UDPSinkFEC::setNbBlocksFEC: nbBlocksFEC: " << nbBlocksFEC;
|
|
m_nbBlocksFEC = nbBlocksFEC;
|
|
}
|
|
|
|
void UDPSinkFEC::setRemoteAddress(const QString& address, uint16_t port)
|
|
{
|
|
qDebug() << "UDPSinkFEC::setRemoteAddress: address: " << address << " port: " << port;
|
|
m_udpWorker->setRemoteAddress(address, port);
|
|
}
|
|
|
|
void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunkSize)
|
|
{
|
|
//qDebug("UDPSinkFEC::write(: %u samples", sampleChunkSize);
|
|
const SampleVector::iterator end = begin + sampleChunkSize;
|
|
SampleVector::iterator it = begin;
|
|
|
|
while (it != end)
|
|
{
|
|
int inRemainingSamples = end - it;
|
|
|
|
if (m_txBlockIndex == 0) // Tx block index 0 is a block with only meta data
|
|
{
|
|
struct timeval tv;
|
|
MetaDataFEC metaData;
|
|
|
|
gettimeofday(&tv, 0);
|
|
|
|
// create meta data TODO: semaphore
|
|
metaData.m_centerFrequency = m_centerFrequency;
|
|
metaData.m_sampleRate = m_sampleRate;
|
|
metaData.m_sampleBytes = m_sampleBytes;
|
|
metaData.m_sampleBits = m_sampleBits;
|
|
metaData.m_nbOriginalBlocks = m_nbOriginalBlocks;
|
|
metaData.m_nbFECBlocks = m_nbBlocksFEC;
|
|
metaData.m_tv_sec = tv.tv_sec;
|
|
metaData.m_tv_usec = tv.tv_usec;
|
|
|
|
boost::crc_32_type crc32;
|
|
crc32.process_bytes(&metaData, 20);
|
|
|
|
metaData.m_crc32 = crc32.checksum();
|
|
|
|
memset((void *) &m_superBlock, 0, m_udpSize);
|
|
|
|
m_superBlock.header.frameIndex = m_frameCount;
|
|
m_superBlock.header.blockIndex = m_txBlockIndex;
|
|
memcpy((void *) &m_superBlock.protectedBlock, (const void *) &metaData, sizeof(MetaDataFEC));
|
|
|
|
if (!(metaData == m_currentMetaFEC))
|
|
{
|
|
qDebug() << "UDPSinkFEC::write: 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_txBlocks[m_txBlocksIndex][0] = m_superBlock;
|
|
m_txBlockIndex = 1; // next Tx block with data
|
|
}
|
|
|
|
if (m_sampleIndex + inRemainingSamples < samplesPerBlock) // there is still room in the current super block
|
|
{
|
|
memcpy((void *) &m_superBlock.protectedBlock.m_samples[m_sampleIndex],
|
|
(const void *) &(*it),
|
|
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.protectedBlock.m_samples[m_sampleIndex],
|
|
(const void *) &(*it),
|
|
(samplesPerBlock - m_sampleIndex) * sizeof(Sample));
|
|
it += samplesPerBlock - m_sampleIndex;
|
|
m_sampleIndex = 0;
|
|
|
|
m_superBlock.header.frameIndex = m_frameCount;
|
|
m_superBlock.header.blockIndex = m_txBlockIndex;
|
|
m_txBlocks[m_txBlocksIndex][m_txBlockIndex] = m_superBlock;
|
|
|
|
if (m_txBlockIndex == m_nbOriginalBlocks - 1) // frame complete
|
|
{
|
|
int nbBlocksFEC = m_nbBlocksFEC;
|
|
int txDelay = m_txDelay;
|
|
|
|
// TODO: send blocks
|
|
//qDebug("UDPSinkFEC::write: push frame to worker: %u", m_frameCount);
|
|
m_udpWorker->pushTxFrame(m_txBlocks[m_txBlocksIndex], nbBlocksFEC, txDelay, m_frameCount);
|
|
//m_txThread = new std::thread(transmitUDP, this, m_txBlocks[m_txBlocksIndex], m_frameCount, nbBlocksFEC, txDelay, m_cm256Valid);
|
|
//transmitUDP(this, m_txBlocks[m_txBlocksIndex], m_frameCount, m_nbBlocksFEC, m_txDelay, m_cm256Valid);
|
|
|
|
m_txBlocksIndex = (m_txBlocksIndex + 1) % 4;
|
|
m_txBlockIndex = 0;
|
|
m_frameCount++;
|
|
}
|
|
else
|
|
{
|
|
m_txBlockIndex++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
UDPSinkFECWorker::UDPSinkFECWorker() :
|
|
m_running(false),
|
|
m_remotePort(9090)
|
|
{
|
|
m_cm256Valid = m_cm256.isInitialized();
|
|
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::DirectConnection);
|
|
}
|
|
|
|
UDPSinkFECWorker::~UDPSinkFECWorker()
|
|
{
|
|
disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
|
|
m_inputMessageQueue.clear();
|
|
}
|
|
|
|
void UDPSinkFECWorker::pushTxFrame(UDPSinkFEC::SuperBlock *txBlocks,
|
|
uint32_t nbBlocksFEC,
|
|
uint32_t txDelay,
|
|
uint16_t frameIndex)
|
|
{
|
|
//qDebug("UDPSinkFECWorker::pushTxFrame. %d", m_inputMessageQueue.size());
|
|
m_inputMessageQueue.push(MsgUDPFECEncodeAndSend::create(txBlocks, nbBlocksFEC, txDelay, frameIndex));
|
|
}
|
|
|
|
void UDPSinkFECWorker::setRemoteAddress(const QString& address, uint16_t port)
|
|
{
|
|
m_inputMessageQueue.push(MsgConfigureRemoteAddress::create(address, port));
|
|
}
|
|
|
|
void UDPSinkFECWorker::process()
|
|
{
|
|
m_running = true;
|
|
|
|
qDebug("UDPSinkFECWorker::process: started");
|
|
|
|
while (m_running)
|
|
{
|
|
usleep(250000);
|
|
}
|
|
|
|
qDebug("UDPSinkFECWorker::process: stopped");
|
|
emit finished();
|
|
}
|
|
|
|
void UDPSinkFECWorker::stop()
|
|
{
|
|
m_running = false;
|
|
}
|
|
|
|
void UDPSinkFECWorker::handleInputMessages()
|
|
{
|
|
Message* message;
|
|
|
|
while ((message = m_inputMessageQueue.pop()) != 0)
|
|
{
|
|
if (MsgUDPFECEncodeAndSend::match(*message))
|
|
{
|
|
MsgUDPFECEncodeAndSend *sendMsg = (MsgUDPFECEncodeAndSend *) message;
|
|
encodeAndTransmit(sendMsg->getTxBlocks(), sendMsg->getFrameIndex(), sendMsg->getNbBlocsFEC(), sendMsg->getTxDelay());
|
|
}
|
|
else if (MsgConfigureRemoteAddress::match(*message))
|
|
{
|
|
qDebug("UDPSinkFECWorker::handleInputMessages: %s", message->getIdentifier());
|
|
MsgConfigureRemoteAddress *addressMsg = (MsgConfigureRemoteAddress *) message;
|
|
m_remoteAddress = addressMsg->getAddress();
|
|
m_remotePort = addressMsg->getPort();
|
|
}
|
|
|
|
delete message;
|
|
}
|
|
}
|
|
|
|
void UDPSinkFECWorker::encodeAndTransmit(UDPSinkFEC::SuperBlock *txBlockx, uint16_t frameIndex, uint32_t nbBlocksFEC, uint32_t txDelay)
|
|
{
|
|
CM256::cm256_encoder_params cm256Params; //!< Main interface with CM256 encoder
|
|
CM256::cm256_block descriptorBlocks[256]; //!< Pointers to data for CM256 encoder
|
|
UDPSinkFEC::ProtectedBlock fecBlocks[256]; //!< FEC data
|
|
|
|
if ((nbBlocksFEC == 0) || !m_cm256Valid)
|
|
{
|
|
// qDebug("UDPSinkFECWorker::encodeAndTransmit: transmit frame without FEC to %s:%d", m_remoteAddress.toStdString().c_str(), m_remotePort);
|
|
|
|
for (unsigned int i = 0; i < UDPSinkFEC::m_nbOriginalBlocks; i++)
|
|
{
|
|
m_socket.SendDataGram((const void *) &txBlockx[i], (int) UDPSinkFEC::m_udpSize, m_remoteAddress.toStdString(), (uint32_t) m_remotePort);
|
|
//m_udpSocket->writeDatagram((const char *) &txBlockx[i], (int) UDPSinkFEC::m_udpSize, m_remoteAddress, m_remotePort);
|
|
usleep(txDelay);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
cm256Params.BlockBytes = sizeof(UDPSinkFEC::ProtectedBlock);
|
|
cm256Params.OriginalCount = UDPSinkFEC::m_nbOriginalBlocks;
|
|
cm256Params.RecoveryCount = nbBlocksFEC;
|
|
|
|
|
|
// Fill pointers to data
|
|
for (int i = 0; i < cm256Params.OriginalCount + cm256Params.RecoveryCount; ++i)
|
|
{
|
|
if (i >= cm256Params.OriginalCount) {
|
|
memset((void *) &txBlockx[i].protectedBlock, 0, sizeof(UDPSinkFEC::ProtectedBlock));
|
|
}
|
|
|
|
txBlockx[i].header.frameIndex = frameIndex;
|
|
txBlockx[i].header.blockIndex = i;
|
|
descriptorBlocks[i].Block = (void *) &(txBlockx[i].protectedBlock);
|
|
descriptorBlocks[i].Index = txBlockx[i].header.blockIndex;
|
|
}
|
|
|
|
// Encode FEC blocks
|
|
if (m_cm256.cm256_encode(cm256Params, descriptorBlocks, fecBlocks))
|
|
{
|
|
qDebug("UDPSinkFECWorker::encodeAndTransmit: CM256 encode failed. No transmission.");
|
|
return;
|
|
}
|
|
|
|
// Merge FEC with data to transmit
|
|
for (int i = 0; i < cm256Params.RecoveryCount; i++)
|
|
{
|
|
txBlockx[i + cm256Params.OriginalCount].protectedBlock = fecBlocks[i];
|
|
}
|
|
|
|
// Transmit all blocks
|
|
|
|
// qDebug("UDPSinkFECWorker::encodeAndTransmit: transmit frame with FEC to %s:%d", m_remoteAddress.toStdString().c_str(), m_remotePort);
|
|
|
|
for (int i = 0; i < cm256Params.OriginalCount + cm256Params.RecoveryCount; i++)
|
|
{
|
|
#ifdef SDRDAEMON_PUNCTURE
|
|
if (i == SDRDAEMON_PUNCTURE) {
|
|
continue;
|
|
}
|
|
#endif
|
|
// std::cerr << "UDPSinkFEC::transmitUDP:"
|
|
// << " i: " << i
|
|
// << " frameIndex: " << (int) m_txBlocks[i].header.frameIndex
|
|
// << " blockIndex: " << (int) m_txBlocks[i].header.blockIndex
|
|
// << " i.q:";
|
|
//
|
|
// for (int j = 0; j < 10; j++)
|
|
// {
|
|
// std::cerr << " " << (int) m_txBlocks[i].protectedBlock.m_samples[j].m_real
|
|
// << "." << (int) m_txBlocks[i].protectedBlock.m_samples[j].m_imag;
|
|
// }
|
|
//
|
|
// std::cerr << std::endl;
|
|
|
|
m_socket.SendDataGram((const void *) &txBlockx[i], (int) UDPSinkFEC::m_udpSize, m_remoteAddress.toStdString(), (uint32_t) m_remotePort);
|
|
//m_udpSocket->writeDatagram((const char *) &txBlockx[i], (int) UDPSinkFEC::m_udpSize, m_remoteAddress, m_remotePort);
|
|
usleep(txDelay);
|
|
}
|
|
}
|
|
}
|