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#include "rtpaudio.h"
#include "logcategories.h"
// Audio stream
rtpAudio::rtpAudio(QString ip, quint16 port, audioSetup rxSetup, audioSetup txSetup, QObject* parent)
: QObject{parent}, rxSetup(rxSetup), txSetup(txSetup), port(port)
{
qInfo(logUdp()) << "Starting rtpAudio";
if (txSetup.sampleRate == 0) {
enableTx = false;
} else {
this->ip = QHostAddress(ip);
}
}
rtpAudio::~rtpAudio()
{
if (udp != Q_NULLPTR)
{
qDebug(logUdp()) << "Closing RTP connection";
udp->close();
delete udp;
udp = Q_NULLPTR;
}
if (rxAudioThread != Q_NULLPTR) {
qDebug(logUdp()) << "Stopping rxaudio thread";
rxAudioThread->quit();
rxAudioThread->wait();
}
if (txAudioThread != Q_NULLPTR) {
qDebug(logUdp()) << "Stopping txaudio thread";
txAudioThread->quit();
txAudioThread->wait();
}
debugFile.close();
}
void rtpAudio::init()
{
udp = new QUdpSocket(this);
if (!udp->bind(port))
{
// We couldn't bind to the selected port.
qCritical(logUdp()) << "**** Unable to bind to RTP port" << port << "Cannot continue! ****";
return;
}
else
{
QUdpSocket::connect(udp, &QUdpSocket::readyRead, this, &rtpAudio::dataReceived);
qInfo(logUdp()) << "RTP Stream bound to local port:" << udp->localPort() << " remote port:" << port;
}
if (rxSetup.type == qtAudio) {
rxaudio = new audioHandler();
}
else if (rxSetup.type == portAudio) {
rxaudio = new paHandler();
}
else if (rxSetup.type == rtAudio) {
rxaudio = new rtHandler();
}
#ifndef BUILD_WFSERVER
else if (rxSetup.type == tciAudio) {
rxaudio = new tciAudioHandler();
}
#endif
else
{
qCritical(logAudio()) << "Unsupported Receive Audio Handler selected!";
}
rxAudioThread = new QThread(this);
rxAudioThread->setObjectName("rxAudio()");
rxaudio->moveToThread(rxAudioThread);
rxAudioThread->start(QThread::TimeCriticalPriority);
connect(this, SIGNAL(setupRxAudio(audioSetup)), rxaudio, SLOT(init(audioSetup)));
// signal/slot not currently used.
connect(this, SIGNAL(haveAudioData(audioPacket)), rxaudio, SLOT(incomingAudio(audioPacket)));
connect(this, SIGNAL(haveChangeLatency(quint16)), rxaudio, SLOT(changeLatency(quint16)));
connect(this, SIGNAL(haveSetVolume(quint8)), rxaudio, SLOT(setVolume(quint8)));
connect(rxaudio, SIGNAL(haveLevels(quint16, quint16, quint16, quint16, bool, bool)), this, SLOT(getRxLevels(quint16, quint16, quint16, quint16, bool, bool)));
connect(rxAudioThread, SIGNAL(finished()), rxaudio, SLOT(deleteLater()));
if (enableTx) {
if (txSetup.type == qtAudio) {
txaudio = new audioHandler();
}
else if (txSetup.type == portAudio) {
txaudio = new paHandler();
}
else if (txSetup.type == rtAudio) {
txaudio = new rtHandler();
}
#ifndef BUILD_WFSERVER
else if (txSetup.type == tciAudio) {
txaudio = new tciAudioHandler();
}
#endif
else
{
qCritical(logAudio()) << "Unsupported Transmit Audio Handler selected!";
}
txAudioThread = new QThread(this);
rxAudioThread->setObjectName("txAudio()");
txaudio->moveToThread(txAudioThread);
txAudioThread->start(QThread::TimeCriticalPriority);
connect(this, SIGNAL(setupTxAudio(audioSetup)), txaudio, SLOT(init(audioSetup)));
connect(txaudio, SIGNAL(haveAudioData(audioPacket)), this, SLOT(receiveAudioData(audioPacket)));
connect(txaudio, SIGNAL(haveLevels(quint16, quint16, quint16, quint16, bool, bool)), this, SLOT(getTxLevels(quint16, quint16, quint16, quint16, bool, bool)));
connect(txAudioThread, SIGNAL(finished()), txaudio, SLOT(deleteLater()));
emit setupTxAudio(txSetup);
}
emit setupRxAudio(rxSetup);
}
void rtpAudio::dataReceived()
{
QHostAddress sender;
quint16 port;
QByteArray d(udp->pendingDatagramSize(),0x0);
udp->readDatagram(d.data(), d.size(), &sender, &port);
rtp_header in;
memcpy(in.packet,d.mid(0,12).constData(),sizeof(rtp_header));
//qInfo(logUdp()) << "RX: version:" << in.version << "type:" << in.payloadType << "len" << d.size() << "seq" << qFromBigEndian(in.seq) << "header" << sizeof(rtp_header) << "hex" << d.mid(0,12).toHex(' ');
if (in.payloadType == 96) {
// We have audio data
audioPacket tempAudio;
tempAudio.seq = qFromBigEndian(in.seq);
tempAudio.time = QTime::currentTime().addMSecs(0);
tempAudio.sent = 0;
tempAudio.data = d.mid(12);
emit haveAudioData(tempAudio);
packetCount++;
size = size + tempAudio.data.size();
}
}
void rtpAudio::changeLatency(quint16 value)
{
emit haveChangeLatency(value);
}
void rtpAudio::setVolume(quint8 value)
{
emit haveSetVolume(value);
}
void rtpAudio::getRxLevels(quint16 amplitudePeak, quint16 amplitudeRMS, quint16 latency, quint16 current, bool under, bool over)
{
emit haveRxLevels(amplitudePeak, amplitudeRMS, latency, current, under, over);
}
void rtpAudio::getTxLevels(quint16 amplitudePeak, quint16 amplitudeRMS, quint16 latency, quint16 current, bool under, bool over)
{
emit haveTxLevels(amplitudePeak, amplitudeRMS, latency, current, under, over);
}
void rtpAudio::receiveAudioData(audioPacket audio)
{
// I really can't see how this could be possible but a quick sanity check!
if (txaudio == Q_NULLPTR) {
return;
}
if (audio.data.length() > 0) {
int len = 0;
while (len < audio.data.length()) {
QByteArray partial = audio.data.mid(len, 640);
rtp_header p;
memset(p.packet, 0x0, sizeof(p)); // We can't be sure it is initialized with 0x00!
p.version = 2;
p.padding = 0;
p.extension = 0;
p.csrc = 0;
p.marker = 0;
p.payloadType=96;
p.seq = qToBigEndian(seq++);
p.timestamp = 0;
p.ssrc = quint32(0x00) << 24 | quint32(0x30) << 16 | quint32(0x39) << 8 | (quint32(0x38) & 0xff);
QByteArray tx = QByteArray::fromRawData((const char*)p.packet, sizeof(p));
tx.append(partial);
len = len + partial.length();
//qInfo(logUdp()) << "TX: " << tx.length() << "to" << ip.toString() << "port" << port << "ver" << p.version << "type" << p.payloadType << "seq" << p.seq << "ssrc" << QString::number(p.ssrc,16);
udp->writeDatagram(tx, ip, port);
}
}
}
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