mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-04 16:01:14 -05:00
331 lines
10 KiB
C++
331 lines
10 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 //
|
|
// (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 "udpsourceudphandler.h"
|
|
|
|
#include <QDebug>
|
|
#include <stdint.h>
|
|
#include <algorithm>
|
|
|
|
#include "udpsourcemsg.h"
|
|
|
|
MESSAGE_CLASS_DEFINITION(UDPSourceUDPHandler::MsgUDPAddressAndPort, Message)
|
|
|
|
UDPSourceUDPHandler::UDPSourceUDPHandler() :
|
|
m_dataSocket(nullptr),
|
|
m_dataAddress(QHostAddress::LocalHost),
|
|
m_remoteAddress(QHostAddress::LocalHost),
|
|
m_multicastAddress(QStringLiteral("224.0.0.1")),
|
|
m_dataPort(9999),
|
|
m_remotePort(0),
|
|
m_dataConnected(false),
|
|
m_multicast(false),
|
|
m_udpDumpIndex(0),
|
|
m_nbUDPFrames(m_minNbUDPFrames),
|
|
m_nbAllocatedUDPFrames(m_minNbUDPFrames),
|
|
m_writeFrameIndex(0),
|
|
m_readFrameIndex(m_minNbUDPFrames/2),
|
|
m_readIndex(0),
|
|
m_rwDelta(m_minNbUDPFrames/2),
|
|
m_d(0),
|
|
m_autoRWBalance(true),
|
|
m_feedbackMessageQueue(nullptr)
|
|
{
|
|
m_udpBuf = new udpBlk_t[m_minNbUDPFrames];
|
|
std::fill(m_udpDump, m_udpDump + m_udpBlockSize + 8192, 0);
|
|
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleMessages()));
|
|
}
|
|
|
|
UDPSourceUDPHandler::~UDPSourceUDPHandler()
|
|
{
|
|
stop();
|
|
delete[] m_udpBuf;
|
|
}
|
|
|
|
void UDPSourceUDPHandler::start()
|
|
{
|
|
qDebug("UDPSourceUDPHandler::start");
|
|
|
|
if (!m_dataSocket) {
|
|
m_dataSocket = new QUdpSocket(this);
|
|
}
|
|
|
|
if (!m_dataConnected)
|
|
{
|
|
if (m_dataSocket->bind(m_multicast ? QHostAddress::AnyIPv4 : m_dataAddress, m_dataPort, QUdpSocket::ShareAddress))
|
|
{
|
|
qDebug("UDPSourceUDPHandler::start: bind data socket to %s:%d", m_dataAddress.toString().toStdString().c_str(), m_dataPort);
|
|
|
|
if (m_multicast)
|
|
{
|
|
if (m_dataSocket->joinMulticastGroup(m_multicastAddress)) {
|
|
qDebug("UDPSourceUDPHandler::start: joined multicast group %s", qPrintable(m_multicastAddress.toString()));
|
|
} else {
|
|
qDebug("UDPSourceUDPHandler::start: failed joining multicast group %s", qPrintable(m_multicastAddress.toString()));
|
|
}
|
|
}
|
|
|
|
connect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead())); // , Qt::QueuedConnection gets stuck since Qt 5.8.0
|
|
m_dataConnected = true;
|
|
}
|
|
else
|
|
{
|
|
qWarning("UDPSourceUDPHandler::start: cannot bind data socket to %s:%d", m_dataAddress.toString().toStdString().c_str(), m_dataPort);
|
|
m_dataConnected = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::stop()
|
|
{
|
|
qDebug("UDPSourceUDPHandler::stop");
|
|
|
|
if (m_dataConnected)
|
|
{
|
|
m_dataConnected = false;
|
|
disconnect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
|
|
}
|
|
|
|
if (m_dataSocket)
|
|
{
|
|
delete m_dataSocket;
|
|
m_dataSocket = nullptr;
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::dataReadyRead()
|
|
{
|
|
while (m_dataSocket->hasPendingDatagrams() && m_dataConnected)
|
|
{
|
|
qint64 pendingDataSize = m_dataSocket->pendingDatagramSize();
|
|
qint64 bytesRead = m_dataSocket->readDatagram(&m_udpDump[m_udpDumpIndex], pendingDataSize, &m_remoteAddress, &m_remotePort);
|
|
|
|
if (bytesRead < 0)
|
|
{
|
|
qWarning("UDPSourceUDPHandler::dataReadyRead: UDP read error");
|
|
}
|
|
else
|
|
{
|
|
int udpDumpSize = m_udpDumpIndex + bytesRead;
|
|
int udpDumpPtr = 0;
|
|
|
|
while (udpDumpSize >= m_udpBlockSize)
|
|
{
|
|
moveData(&m_udpDump[udpDumpPtr]);
|
|
udpDumpPtr += m_udpBlockSize;
|
|
udpDumpSize -= m_udpBlockSize;
|
|
}
|
|
|
|
if (udpDumpSize > 0)
|
|
{
|
|
memcpy(m_udpDump, &m_udpDump[udpDumpPtr], udpDumpSize);
|
|
}
|
|
|
|
m_udpDumpIndex = udpDumpSize;
|
|
}
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::moveData(char *blk)
|
|
{
|
|
memcpy(m_udpBuf[m_writeFrameIndex], blk, m_udpBlockSize);
|
|
|
|
if (m_writeFrameIndex < m_nbUDPFrames - 1) {
|
|
m_writeFrameIndex++;
|
|
} else {
|
|
m_writeFrameIndex = 0;
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::readSample(qint16 &t)
|
|
{
|
|
if (m_readFrameIndex == m_writeFrameIndex) // block until more writes
|
|
{
|
|
t = 0;
|
|
}
|
|
else
|
|
{
|
|
memcpy(&t, &m_udpBuf[m_readFrameIndex][m_readIndex], sizeof(qint16));
|
|
advanceReadPointer((int) sizeof(qint16));
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::readSample(AudioSample &a)
|
|
{
|
|
if (m_readFrameIndex == m_writeFrameIndex) // block until more writes
|
|
{
|
|
a.l = 0;
|
|
a.r = 0;
|
|
}
|
|
else
|
|
{
|
|
memcpy(&a, &m_udpBuf[m_readFrameIndex][m_readIndex], sizeof(AudioSample));
|
|
advanceReadPointer((int) sizeof(AudioSample));
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::readSample(Sample &s)
|
|
{
|
|
if (m_readFrameIndex == m_writeFrameIndex) // block until more writes
|
|
{
|
|
s.m_real = 0;
|
|
s.m_imag = 0;
|
|
}
|
|
else
|
|
{
|
|
Sample *u = (Sample *) &m_udpBuf[m_readFrameIndex][m_readIndex];
|
|
s = *u;
|
|
advanceReadPointer((int) sizeof(Sample));
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::advanceReadPointer(int nbBytes)
|
|
{
|
|
if (m_readIndex < m_udpBlockSize - 2*nbBytes)
|
|
{
|
|
m_readIndex += nbBytes;
|
|
}
|
|
else
|
|
{
|
|
m_readIndex = 0;
|
|
|
|
if (m_readFrameIndex < m_nbUDPFrames - 1)
|
|
{
|
|
m_readFrameIndex++;
|
|
}
|
|
else
|
|
{
|
|
m_rwDelta = m_writeFrameIndex; // raw R/W delta estimate
|
|
int nbUDPFrames2 = m_nbUDPFrames/2;
|
|
float d = (m_rwDelta - nbUDPFrames2)/(float) m_nbUDPFrames;
|
|
//qDebug("UDPSourceUDPHandler::advanceReadPointer: w: %02d d: %f", m_writeIndex, d);
|
|
|
|
if ((d < -0.45) || (d > 0.45))
|
|
{
|
|
resetReadIndex();
|
|
}
|
|
else
|
|
{
|
|
float dd = d - m_d; // derivative
|
|
float c = (d / 15.0) + (dd / 20.0); // damping and scaling
|
|
c = c < -0.05 ? -0.05 : c > 0.05 ? 0.05 : c; // limit
|
|
UDPSourceMessages::MsgSampleRateCorrection *msg = UDPSourceMessages::MsgSampleRateCorrection::create(c, d);
|
|
|
|
if (m_autoRWBalance && m_feedbackMessageQueue) {
|
|
m_feedbackMessageQueue->push(msg);
|
|
}
|
|
|
|
m_readFrameIndex = 0;
|
|
m_d = d;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UDPSourceUDPHandler::configureUDPLink(const QString& address, quint16 port, const QString& multicastAddress, bool multicastJoin)
|
|
{
|
|
Message* msg = MsgUDPAddressAndPort::create(address, port, multicastAddress, multicastJoin);
|
|
m_inputMessageQueue.push(msg);
|
|
}
|
|
|
|
void UDPSourceUDPHandler::applyUDPLink(const QString& address, quint16 port, const QString& multicastAddress, bool multicastJoin)
|
|
{
|
|
qDebug() << "UDPSourceUDPHandler::applyUDPLink: "
|
|
<< " address: " << address
|
|
<< " port: " << port
|
|
<< " multicastAddress: " << multicastAddress
|
|
<< " multicastJoin: " << multicastJoin;
|
|
|
|
bool addressOK = m_dataAddress.setAddress(address);
|
|
|
|
if (!addressOK)
|
|
{
|
|
qWarning("UDPSourceUDPHandler::applyUDPLink: invalid address %s. Set to localhost.", address.toStdString().c_str());
|
|
m_dataAddress = QHostAddress::LocalHost;
|
|
}
|
|
|
|
m_multicast = multicastJoin;
|
|
addressOK = m_multicastAddress.setAddress(multicastAddress);
|
|
|
|
if (!addressOK)
|
|
{
|
|
qWarning("UDPSourceUDPHandler::applyUDPLink: invalid multicast address %s. disabling multicast.", address.toStdString().c_str());
|
|
m_multicast = false;
|
|
}
|
|
|
|
stop();
|
|
m_dataPort = port;
|
|
resetReadIndex();
|
|
start();
|
|
}
|
|
|
|
void UDPSourceUDPHandler::resetReadIndex()
|
|
{
|
|
m_readFrameIndex = (m_writeFrameIndex + (m_nbUDPFrames/2)) % m_nbUDPFrames;
|
|
m_rwDelta = m_nbUDPFrames/2;
|
|
m_readIndex = 0;
|
|
m_d = 0.0f;
|
|
}
|
|
|
|
void UDPSourceUDPHandler::resizeBuffer(float sampleRate)
|
|
{
|
|
int halfNbFrames = std::max((sampleRate / 375.0), (m_minNbUDPFrames / 2.0));
|
|
qDebug("UDPSourceUDPHandler::resizeBuffer: nb_frames: %d", 2*halfNbFrames);
|
|
|
|
if (2*halfNbFrames > m_nbAllocatedUDPFrames)
|
|
{
|
|
delete[] m_udpBuf;
|
|
m_udpBuf = new udpBlk_t[2*halfNbFrames];
|
|
m_nbAllocatedUDPFrames = 2*halfNbFrames;
|
|
}
|
|
|
|
m_nbUDPFrames = 2*halfNbFrames;
|
|
m_writeFrameIndex = 0;
|
|
|
|
resetReadIndex();
|
|
}
|
|
|
|
void UDPSourceUDPHandler::handleMessages()
|
|
{
|
|
Message* message;
|
|
|
|
while ((message = m_inputMessageQueue.pop()) != 0)
|
|
{
|
|
if (handleMessage(*message))
|
|
{
|
|
delete message;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool UDPSourceUDPHandler::handleMessage(const Message& cmd)
|
|
{
|
|
if (UDPSourceUDPHandler::MsgUDPAddressAndPort::match(cmd))
|
|
{
|
|
UDPSourceUDPHandler::MsgUDPAddressAndPort& notif = (UDPSourceUDPHandler::MsgUDPAddressAndPort&) cmd;
|
|
applyUDPLink(notif.getAddress(), notif.getPort(), notif.getMulticastAddress(), notif.getMulticastJoin());
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
|