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Code Issues Projects Releases Wiki Activity

Remote output: threading refactoring

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This commit is contained in:
f4exb 2019-12-12 18:24:50 +01:00
parent 1a8028a4eb
commit 30ddab77e3
9 changed files with 470 additions and 82 deletions
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22
plugins/samplesink/remoteoutput/CMakeLists.txt
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@ -16,7 +16,8 @@ set(remoteoutput_SOURCES
remoteoutputwebapiadapter.cpp
remoteoutputthread.cpp
udpsinkfec.cpp
udpsinkfecworker.cpp
remoteoutputsender.cpp
remoteoutputfifo.cpp
)
set(remoteoutput_HEADERS
@ -26,28 +27,27 @@ set(remoteoutput_HEADERS
remoteoutputwebapiadapter.h
remoteoutputthread.h
udpsinkfec.h
udpsinkfecworker.h
remoteoutputsender.h
remoteoutputfifo.h
)
include_directories(
${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client
${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client
${CMAKE_SOURCE_DIR}/devices
${Boost_INCLUDE_DIRS}
${CM256CC_INCLUDE_DIR}
${Boost_INCLUDE_DIRS}
${CM256CC_INCLUDE_DIR}
)
if(NOT SERVER_MODE)
set(remoteoutput_SOURCES
${remoteoutput_SOURCES}
remoteoutputgui.cpp
remoteoutputgui.ui
)
set(remoteoutput_HEADERS
${remoteoutput_HEADERS}
remoteoutputgui.h
)
set(TARGET_NAME outputremote)
set(TARGET_LIB "Qt5::Widgets")
set(TARGET_LIB_GUI "sdrgui")
@ -68,12 +68,12 @@ if(ENABLE_EXTERNAL_LIBRARIES)
endif()
target_link_libraries(${TARGET_NAME}
Qt5::Core
${TARGET_LIB}
Qt5::Core
${TARGET_LIB}
sdrbase
${TARGET_LIB_GUI}
swagger
${CM256CC_LIBRARIES}
swagger
${CM256CC_LIBRARIES}
)
install(TARGETS ${TARGET_NAME} DESTINATION ${INSTALL_FOLDER})

95
plugins/samplesink/remoteoutput/remoteoutputfifo.cpp Normal file
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@ -0,0 +1,95 @@
///////////////////////////////////////////////////////////////////////////////////
// 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 "remoteoutputfifo.h"
RemoteOutputFifo::RemoteOutputFifo(QObject *parent) :
QObject(parent)
{}
RemoteOutputFifo::RemoteOutputFifo(unsigned int size, QObject *parent) :
QObject(parent)
{
resize(size);
}
RemoteOutputFifo::~RemoteOutputFifo()
{}
void RemoteOutputFifo::resize(unsigned int size)
{
QMutexLocker mutexLocker(&m_mutex);
m_size = size;
m_data.resize(m_size);
m_readHead = 0;
m_servedHead = 0;
m_writeHead = 0;
}
void RemoteOutputFifo::reset()
{
m_readHead = 0;
m_servedHead = 0;
m_writeHead = 0;
}
RemoteDataBlock *RemoteOutputFifo::getDataBlock()
{
QMutexLocker mutexLocker(&m_mutex);
m_servedHead = m_writeHead;
if (m_writeHead < m_size - 1) {
m_writeHead++;
} else {
m_writeHead = 0;
}
emit dataBlockServed();
return &m_data[m_servedHead];
}
unsigned int RemoteOutputFifo::readDataBlock(RemoteDataBlock **dataBlock)
{
QMutexLocker mutexLocker(&m_mutex);
if (calculateRemainder() == 0)
{
*dataBlock = nullptr;
return 0;
}
else
{
*dataBlock = &m_data[m_readHead];
m_readHead = m_readHead < m_size - 1 ? m_readHead + 1 : 0;
return calculateRemainder();
}
}
unsigned int RemoteOutputFifo::getRemainder()
{
QMutexLocker mutexLocker(&m_mutex);
return calculateRemainder();
}
unsigned int RemoteOutputFifo::calculateRemainder()
{
if (m_readHead <= m_servedHead) {
return m_servedHead - m_readHead;
} else {
return m_size - (m_readHead - m_servedHead);
}
}

55
plugins/samplesink/remoteoutput/remoteoutputfifo.h Normal file
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@ -0,0 +1,55 @@
///////////////////////////////////////////////////////////////////////////////////
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef REMOTESINK_REMOTEOUTPUTFIFO_H_
#define REMOTESINK_REMOTEOUTPUTFIFO_H_
#include <vector>
#include <QObject>
#include <QMutex>
#include "channel/remotedatablock.h"
class RemoteOutputFifo : public QObject {
Q_OBJECT
public:
RemoteOutputFifo(QObject *parent = nullptr);
RemoteOutputFifo(unsigned int size, QObject *parent = nullptr);
~RemoteOutputFifo();
void resize(unsigned int size);
void reset();
RemoteDataBlock *getDataBlock();
unsigned int readDataBlock(RemoteDataBlock **dataBlock);
unsigned int getRemainder();
signals:
void dataBlockServed();
private:
std::vector<RemoteDataBlock> m_data;
int m_size;
unsigned int m_readHead; //!< index of last data block processed
unsigned int m_servedHead; //!< index of last data block served
unsigned int m_writeHead; //!< index of next data block to serve
QMutex m_mutex;
unsigned int calculateRemainder();
};
#endif // REMOTESINK_REMOTEOUTPUTFIFO_H_

2
plugins/samplesink/remoteoutput/remoteoutputplugin.cpp
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@ -30,7 +30,7 @@
const PluginDescriptor RemoteOutputPlugin::m_pluginDescriptor = {
QString("Remote device output"),
QString("4.12.0"),
QString("4.12.2"),
QString("(c) Edouard Griffiths, F4EXB"),
QString("https://github.com/f4exb/sdrangel"),
true,

165
plugins/samplesink/remoteoutput/remoteoutputsender.cpp Normal file
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@ -0,0 +1,165 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018-2019 Edouard Griffiths, F4EXB. //
// //
// Remote sink channel (Rx) UDP sender thread //
// //
// SDRangel can work as a detached SDR front end. With this plugin it can //
// sends the I/Q samples stream to another SDRangel instance via UDP. //
// It is controlled via a Web REST API. //
// //
// 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 <thread>
#include <chrono>
#include <boost/crc.hpp>
#include <boost/cstdint.hpp>
#include <QUdpSocket>
#include "cm256cc/cm256.h"
#include "channel/remotedatablock.h"
#include "remoteoutputsender.h"
RemoteOutputSender::RemoteOutputSender() :
m_fifo(20, this),
m_udpSocket(nullptr),
m_remotePort(9090)
{
qDebug("RemoteOutputSender::RemoteOutputSender");
m_cm256p = m_cm256.isInitialized() ? &m_cm256 : nullptr;
m_udpSocket = new QUdpSocket(this);
QObject::connect(
&m_fifo,
&RemoteOutputFifo::dataBlockServed,
this,
&RemoteOutputSender::handleData,
Qt::QueuedConnection
);
}
RemoteOutputSender::~RemoteOutputSender()
{
qDebug("RemoteOutputSender::~RemoteOutputSender");
delete m_udpSocket;
}
void RemoteOutputSender::setDestination(const QString& address, uint16_t port)
{
m_remoteAddress = address;
m_remotePort = port;
m_remoteHostAddress.setAddress(address);
}
RemoteDataBlock *RemoteOutputSender::getDataBlock()
{
return m_fifo.getDataBlock();
}
void RemoteOutputSender::handleData()
{
RemoteDataBlock *dataBlock;
unsigned int remainder = m_fifo.getRemainder();
while (remainder != 0)
{
remainder = m_fifo.readDataBlock(&dataBlock);
if (dataBlock) {
sendDataBlock(dataBlock);
}
}
}
void RemoteOutputSender::sendDataBlock(RemoteDataBlock *dataBlock)
{
CM256::cm256_encoder_params cm256Params; //!< Main interface with CM256 encoder
CM256::cm256_block descriptorBlocks[256]; //!< Pointers to data for CM256 encoder
RemoteProtectedBlock fecBlocks[256]; //!< FEC data
uint16_t frameIndex = dataBlock->m_txControlBlock.m_frameIndex;
int nbBlocksFEC = dataBlock->m_txControlBlock.m_nbBlocksFEC;
int txDelay = dataBlock->m_txControlBlock.m_txDelay;
m_remoteHostAddress.setAddress(dataBlock->m_txControlBlock.m_dataAddress);
uint16_t dataPort = dataBlock->m_txControlBlock.m_dataPort;
RemoteSuperBlock *txBlockx = dataBlock->m_superBlocks;
if ((nbBlocksFEC == 0) || !m_cm256p) // Do not FEC encode
{
if (m_udpSocket)
{
for (int i = 0; i < RemoteNbOrginalBlocks; i++)
{
// send block via UDP
m_udpSocket->writeDatagram((const char*)&txBlockx[i], (qint64 ) RemoteUdpSize, m_remoteHostAddress, dataPort);
std::this_thread::sleep_for(std::chrono::microseconds(txDelay));
}
}
}
else
{
cm256Params.BlockBytes = sizeof(RemoteProtectedBlock);
cm256Params.OriginalCount = RemoteNbOrginalBlocks;
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].m_protectedBlock, 0, sizeof(RemoteProtectedBlock));
}
txBlockx[i].m_header.m_frameIndex = frameIndex;
txBlockx[i].m_header.m_blockIndex = i;
txBlockx[i].m_header.m_sampleBytes = (SDR_RX_SAMP_SZ <= 16 ? 2 : 4);
txBlockx[i].m_header.m_sampleBits = SDR_RX_SAMP_SZ;
descriptorBlocks[i].Block = (void *) &(txBlockx[i].m_protectedBlock);
descriptorBlocks[i].Index = txBlockx[i].m_header.m_blockIndex;
}
// Encode FEC blocks
if (m_cm256p->cm256_encode(cm256Params, descriptorBlocks, fecBlocks))
{
qWarning("RemoteSinkSender::handleDataBlock: CM256 encode failed. Transmit without FEC.");
cm256Params.RecoveryCount = 0;
RemoteSuperBlock& superBlock = dataBlock->m_superBlocks[0]; // first block
RemoteMetaDataFEC *destMeta = (RemoteMetaDataFEC *) &superBlock.m_protectedBlock;
destMeta->m_nbFECBlocks = 0;
boost::crc_32_type crc32;
crc32.process_bytes(destMeta, sizeof(RemoteMetaDataFEC)-4);
destMeta->m_crc32 = crc32.checksum();
}
// Merge FEC with data to transmit
for (int i = 0; i < cm256Params.RecoveryCount; i++) {
txBlockx[i + cm256Params.OriginalCount].m_protectedBlock = fecBlocks[i];
}
// Transmit all blocks
if (m_udpSocket)
{
for (int i = 0; i < cm256Params.OriginalCount + cm256Params.RecoveryCount; i++)
{
// send block via UDP
m_udpSocket->writeDatagram((const char*)&txBlockx[i], (qint64 ) RemoteUdpSize, m_remoteHostAddress, dataPort);
std::this_thread::sleep_for(std::chrono::microseconds(txDelay));
}
}
}
dataBlock->m_txControlBlock.m_processed = true;
}

71
plugins/samplesink/remoteoutput/remoteoutputsender.h Normal file
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@ -0,0 +1,71 @@
///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018-2019 Edouard Griffiths, F4EXB. //
// //
// Remote sink channel (Rx) UDP sender thread //
// //
// SDRangel can work as a detached SDR front end. With this plugin it can //
// sends the I/Q samples stream to another SDRangel instance via UDP. //
// It is controlled via a Web REST API. //
// //
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef REMOTEOUTPUT_REMOTEOUTPUTSENDER_H_
#define REMOTEOUTPUT_REMOTEOUTPUTSENDER_H_
#include <QObject>
#include <QMutex>
#include <QWaitCondition>
#include <QHostAddress>
#include "cm256cc/cm256.h"
#include "util/message.h"
#include "util/messagequeue.h"
#include "remoteoutputfifo.h"
class RemoteDataBlock;
class CM256;
class QUdpSocket;
class RemoteOutputSender : public QObject {
Q_OBJECT
public:
RemoteOutputSender();
~RemoteOutputSender();
RemoteDataBlock *getDataBlock();
void setDestination(const QString& address, uint16_t port);
private:
RemoteOutputFifo m_fifo;
CM256 m_cm256; //!< CM256 library object
CM256 *m_cm256p;
bool m_cm256Valid; //!< true if CM256 library is initialized correctly
QUdpSocket *m_udpSocket;
QString m_remoteAddress;
uint16_t m_remotePort;
QHostAddress m_remoteHostAddress;
void sendDataBlock(RemoteDataBlock *dataBlock);
private slots:
void handleData();
};
#endif // REMOTEOUTPUT_REMOTEOUTPUTSENDER_H_

4
plugins/samplesink/remoteoutput/remoteoutputthread.cpp
View File

@ -49,7 +49,7 @@ RemoteOutputThread::~RemoteOutputThread()
void RemoteOutputThread::startWork()
{
qDebug() << "RemoteOutputThread::startWork: ";
m_udpSinkFEC.start();
m_udpSinkFEC.startSender();
m_maxThrottlems = 0;
m_startWaitMutex.lock();
m_elapsedTimer.start();
@ -64,7 +64,7 @@ void RemoteOutputThread::stopWork()
qDebug() << "RemoteOutputThread::stopWork";
m_running = false;
wait();
m_udpSinkFEC.stop();
m_udpSinkFEC.stopSender();
}
void RemoteOutputThread::setSamplerate(int samplerate)

122
plugins/samplesink/remoteoutput/udpsinkfec.cpp
View File

@ -17,6 +17,7 @@
#include "udpsinkfec.h"
#include <QThread>
#include <QDebug>
#include <boost/crc.hpp>
@ -24,8 +25,7 @@
#include "util/timeutil.h"
#include "udpsinkfecworker.h"
#include "remoteoutputsender.h"
UDPSinkFEC::UDPSinkFEC() :
m_sampleRate(48000),
@ -33,42 +33,42 @@ UDPSinkFEC::UDPSinkFEC() :
m_nbBlocksFEC(0),
m_txDelayRatio(0.0),
m_txDelay(0),
m_dataBlock(nullptr),
m_txBlockIndex(0),
m_txBlocksIndex(0),
m_frameCount(0),
m_sampleIndex(0),
m_udpWorker(0),
m_remoteOutputSender(nullptr),
m_senderThread(nullptr),
m_remoteAddress("127.0.0.1"),
m_remotePort(9090)
{
memset((char *) m_txBlocks, 0, 4*256*sizeof(RemoteSuperBlock));
memset((char *) &m_superBlock, 0, sizeof(RemoteSuperBlock));
m_currentMetaFEC.init();
m_bufMeta = new uint8_t[m_udpSize];
m_buf = new uint8_t[m_udpSize];
m_senderThread = new QThread(this);
m_remoteOutputSender = new RemoteOutputSender();
m_remoteOutputSender->moveToThread(m_senderThread);
}
UDPSinkFEC::~UDPSinkFEC()
{
delete[] m_buf;
delete[] m_bufMeta;
delete m_remoteOutputSender;
delete m_senderThread;
}
void UDPSinkFEC::start()
void UDPSinkFEC::startSender()
{
m_udpWorker = new UDPSinkFECWorker();
m_udpWorker->setRemoteAddress(m_remoteAddress, m_remotePort);
m_udpWorker->startStop(true);
qDebug("UDPSinkFEC::startSender");
m_remoteOutputSender->setDestination(m_remoteAddress, m_remotePort);
m_senderThread->start();
}
void UDPSinkFEC::stop()
void UDPSinkFEC::stopSender()
{
if (m_udpWorker)
{
m_udpWorker->startStop(false);
m_udpWorker->deleteLater();
m_udpWorker = 0;
}
qDebug("UDPSinkFEC::stopSender");
m_senderThread->exit();
m_senderThread->wait();
}
void UDPSinkFEC::setTxDelay(float txDelayRatio)
@ -78,10 +78,14 @@ void UDPSinkFEC::setTxDelay(float txDelayRatio)
// divided by sample rate gives the frame process time
// divided by the number of actual blocks including FEC blocks gives the block (i.e. UDP block) process time
m_txDelayRatio = txDelayRatio;
int samplesPerBlock = RemoteNbBytesPerBlock / (SDR_RX_SAMP_SZ <= 16 ? 4 : 8);
double delay = ((127*samplesPerBlock*txDelayRatio) / m_sampleRate)/(128 + m_nbBlocksFEC);
int samplesPerBlock = RemoteNbBytesPerBlock / sizeof(Sample);
double delay = m_sampleRate == 0 ? 1.0 : (127*samplesPerBlock*txDelayRatio) / m_sampleRate;
delay /= 128 + m_nbBlocksFEC;
m_txDelay = delay * 1e6;
qDebug() << "UDPSinkFEC::setTxDelay: txDelay: " << txDelayRatio << " m_txDelay: " << m_txDelay << " us";
qDebug() << "UDPSinkFEC::setTxDelay:"
<< "txDelay:" << txDelayRatio
<< "m_txDelay:" << m_txDelay << " us"
<< "m_sampleRate:" << m_sampleRate;
}
void UDPSinkFEC::setNbBlocksFEC(uint32_t nbBlocksFEC)
@ -103,49 +107,49 @@ void UDPSinkFEC::setRemoteAddress(const QString& address, uint16_t port)
qDebug() << "UDPSinkFEC::setRemoteAddress: address: " << address << " port: " << port;
m_remoteAddress = address;
m_remotePort = port;
if (m_udpWorker) {
m_udpWorker->setRemoteAddress(m_remoteAddress, m_remotePort);
}
m_remoteOutputSender->setDestination(m_remoteAddress, m_remotePort);
}
void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunkSize)
{
const SampleVector::iterator end = begin + sampleChunkSize;
SampleVector::iterator it = begin;
SampleVector::const_iterator it = begin;
while (it != end)
{
int inSamplesIndex = it - begin;
int inRemainingSamples = end - it;
if (m_txBlockIndex == 0) // Tx block index 0 is a block with only meta data
if (m_txBlockIndex == 0)
{
RemoteMetaDataFEC metaData;
uint64_t ts_usecs = TimeUtil::nowus();
uint64_t nowus = TimeUtil::nowus();
metaData.m_centerFrequency = 0; // frequency not set by stream
metaData.m_sampleRate = m_sampleRate;
metaData.m_sampleBytes = (SDR_RX_SAMP_SZ <= 16 ? 2 : 4);
metaData.m_sampleBits = SDR_RX_SAMP_SZ;
metaData.m_nbOriginalBlocks = m_nbOriginalBlocks;
metaData.m_nbOriginalBlocks = RemoteNbOrginalBlocks;
metaData.m_nbFECBlocks = m_nbBlocksFEC;
metaData.m_tv_sec = ts_usecs / 1000000UL;
metaData.m_tv_usec = ts_usecs % 1000000UL;
metaData.m_tv_sec = nowus / 1000000UL; // tv.tv_sec;
metaData.m_tv_usec = nowus % 1000000UL; // tv.tv_usec;
if (!m_dataBlock) { // on the very first cycle there is no data block allocated
m_dataBlock = m_remoteOutputSender->getDataBlock(); // 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_dataBlock->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;
memset((char *) &m_superBlock, 0, sizeof(m_superBlock));
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;
RemoteMetaDataFEC *destMeta = (RemoteMetaDataFEC *) &m_superBlock.m_protectedBlock;
RemoteMetaDataFEC *destMeta = (RemoteMetaDataFEC *) &superBlock.m_protectedBlock;
*destMeta = metaData;
if (!(metaData == m_currentMetaFEC))
@ -158,30 +162,28 @@ void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunk
<< "|" << (int) metaData.m_nbOriginalBlocks
<< ":" << (int) metaData.m_nbFECBlocks
<< "|" << metaData.m_tv_sec
<< ":" << metaData.m_tv_usec
<< "|";
<< ":" << metaData.m_tv_usec;
m_currentMetaFEC = metaData;
}
m_txBlocks[m_txBlocksIndex][0] = m_superBlock;
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((char *) &m_superBlock.m_protectedBlock.buf[m_sampleIndex*sizeof(Sample)],
(const char *) &(*it),
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((char *) &m_superBlock.m_protectedBlock.buf[m_sampleIndex*sizeof(Sample)],
(const char *) &(*it),
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;
@ -190,18 +192,20 @@ void UDPSinkFEC::write(const SampleVector::iterator& begin, uint32_t sampleChunk
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_txBlocks[m_txBlocksIndex][m_txBlockIndex] = m_superBlock;
m_dataBlock->m_superBlocks[m_txBlockIndex] = m_superBlock;
if (m_txBlockIndex == m_nbOriginalBlocks - 1) // frame complete
if (m_txBlockIndex == RemoteNbOrginalBlocks - 1) // frame complete
{
int nbBlocksFEC = m_nbBlocksFEC;
int txDelay = m_txDelay;
m_dataBlock->m_txControlBlock.m_frameIndex = m_frameCount;
m_dataBlock->m_txControlBlock.m_processed = false;
m_dataBlock->m_txControlBlock.m_complete = true;
m_dataBlock->m_txControlBlock.m_nbBlocksFEC = m_nbBlocksFEC;
m_dataBlock->m_txControlBlock.m_txDelay = m_txDelay;
m_dataBlock->m_txControlBlock.m_dataAddress = m_remoteAddress;
m_dataBlock->m_txControlBlock.m_dataPort = m_remotePort;
if (m_udpWorker) {
m_udpWorker->pushTxFrame(m_txBlocks[m_txBlocksIndex], nbBlocksFEC, txDelay, m_frameCount);
}
m_dataBlock = m_remoteOutputSender->getDataBlock(); // ask a new block to sender
m_txBlocksIndex = (m_txBlocksIndex + 1) % 4;
m_txBlockIndex = 0;
m_frameCount++;
}

16
plugins/samplesink/remoteoutput/udpsinkfec.h
View File

@ -29,7 +29,8 @@
#include "dsp/dsptypes.h"
#include "util/CRC64.h"
class UDPSinkFECWorker;
class QThread;
class RemoteOutputSender;
class UDPSinkFEC : public QObject
{
@ -46,8 +47,8 @@ public:
/** Destroy UDP sink */
~UDPSinkFEC();
void start();
void stop();
void startSender();
void stopSender();
/**
* Write IQ samples
@ -80,25 +81,22 @@ private:
uint32_t m_sampleRate; //!< sample rate in Hz
uint32_t m_nbSamples; //!< total number of samples sent int the last frame
QHostAddress m_ownAddress;
CRC64 m_crc64;
uint8_t* m_bufMeta;
uint8_t* m_buf;
RemoteMetaDataFEC m_currentMetaFEC; //!< Meta data for current frame
uint32_t m_nbBlocksFEC; //!< Variable number of FEC blocks
float m_txDelayRatio; //!< Delay in ratio of nominal frame period
uint32_t m_txDelay; //!< Delay in microseconds (usleep) between each sending of an UDP datagram
RemoteSuperBlock m_txBlocks[4][256]; //!< UDP blocks to send with original data + FEC
RemoteDataBlock *m_dataBlock;
RemoteSuperBlock m_superBlock; //!< current super block being built
int m_txBlockIndex; //!< Current index in blocks to transmit in the Tx row
int m_txBlocksIndex; //!< Current index of Tx blocks row
uint16_t m_frameCount; //!< transmission frame count
int m_sampleIndex; //!< Current sample index in protected block data
UDPSinkFECWorker *m_udpWorker;
RemoteOutputSender *m_remoteOutputSender;
QThread *m_senderThread;
QString m_remoteAddress;
uint16_t m_remotePort;
};