bool AssetClient::uploadAsset(const QByteArray& data, const QString& extension, UploadResultCallback callback) {
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer assetServer = nodeList->soloNodeOfType(NodeType::AssetServer);
if (assetServer) {
auto packetList = NLPacketList::create(PacketType::AssetUpload, QByteArray(), true, true);
auto messageID = ++_currentID;
packetList->writePrimitive(messageID);
packetList->writePrimitive(static_cast<uint8_t>(extension.length()));
packetList->write(extension.toLatin1().constData(), extension.length());
uint64_t size = data.length();
packetList->writePrimitive(size);
packetList->write(data.constData(), size);
nodeList->sendPacketList(std::move(packetList), *assetServer);
_pendingUploads[assetServer][messageID] = callback;
return true;
}
return false;
}
void OctreeHeadlessViewer::queryOctree() {
char serverType = getMyNodeType();
PacketType packetType = getMyQueryMessageType();
if (_hasViewFrustum) {
ConicalViewFrustums views { _viewFrustum };
_octreeQuery.setConicalViews(views);
} else {
_octreeQuery.clearConicalViews();
}
auto nodeList = DependencyManager::get<NodeList>();
auto node = nodeList->soloNodeOfType(serverType);
if (node && node->getActiveSocket()) {
auto queryPacket = NLPacket::create(packetType);
// encode the query data
auto packetData = reinterpret_cast<unsigned char*>(queryPacket->getPayload());
int packetSize = _octreeQuery.getBroadcastData(packetData);
queryPacket->setPayloadSize(packetSize);
// make sure we still have an active socket
nodeList->sendUnreliablePacket(*queryPacket, *node);
}
}
void MessagesClient::unsubscribe(const QString& channel) {
_subscribedChannels.remove(channel);
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer messagesMixer = nodeList->soloNodeOfType(NodeType::MessagesMixer);
if (messagesMixer) {
auto packetList = NLPacketList::create(PacketType::MessagesUnsubscribe, QByteArray(), true, true);
packetList->write(channel.toUtf8());
nodeList->sendPacketList(std::move(packetList), *messagesMixer);
}
}
bool haveAssetServer() {
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer assetServer = nodeList->soloNodeOfType(NodeType::AssetServer);
if (!assetServer) {
qCWarning(asset_client) << "Could not complete AssetClient operation "
<< "since you are not currently connected to an asset-server.";
return false;
}
return true;
}
void AbstractAudioInterface::emitAudioPacket(const void* audioData, size_t bytes, quint16& sequenceNumber,
const Transform& transform, glm::vec3 avatarBoundingBoxCorner, glm::vec3 avatarBoundingBoxScale,
PacketType packetType, QString codecName) {
static std::mutex _mutex;
using Locker = std::unique_lock<std::mutex>;
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer && audioMixer->getActiveSocket()) {
Locker lock(_mutex);
auto audioPacket = NLPacket::create(packetType);
// FIXME - this is not a good way to determine stereoness with codecs....
quint8 isStereo = bytes == AudioConstants::NETWORK_FRAME_BYTES_STEREO ? 1 : 0;
// write sequence number
auto sequence = sequenceNumber++;
audioPacket->writePrimitive(sequence);
// write the codec
audioPacket->writeString(codecName);
if (packetType == PacketType::SilentAudioFrame) {
// pack num silent samples
quint16 numSilentSamples = isStereo ?
AudioConstants::NETWORK_FRAME_SAMPLES_STEREO :
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL;
audioPacket->writePrimitive(numSilentSamples);
} else {
// set the mono/stereo byte
audioPacket->writePrimitive(isStereo);
}
// pack the three float positions
audioPacket->writePrimitive(transform.getTranslation());
// pack the orientation
audioPacket->writePrimitive(transform.getRotation());
audioPacket->writePrimitive(avatarBoundingBoxCorner);
audioPacket->writePrimitive(avatarBoundingBoxScale);
if (audioPacket->getType() != PacketType::SilentAudioFrame) {
// audio samples have already been packed (written to networkAudioSamples)
int leadingBytes = audioPacket->getPayloadSize();
audioPacket->setPayloadSize(leadingBytes + bytes);
memcpy(audioPacket->getPayload() + leadingBytes, audioData, bytes);
}
nodeList->flagTimeForConnectionStep(LimitedNodeList::ConnectionStep::SendAudioPacket);
nodeList->sendUnreliablePacket(*audioPacket, *audioMixer);
}
}
Node* NodeList::addOrUpdateNode(sockaddr* publicSocket, sockaddr* localSocket, char nodeType, uint16_t nodeId) {
NodeList::iterator node = end();
if (publicSocket) {
for (node = begin(); node != end(); node++) {
if (node->matches(publicSocket, localSocket, nodeType)) {
// we already have this node, stop checking
break;
}
}
}
if (node == end()) {
// if we already had this node AND it's a solo type then bust out of here
if (soloNodeOfType(nodeType)) {
return NULL;
}
// we didn't have this node, so add them
Node* newNode = new Node(publicSocket, localSocket, nodeType, nodeId);
if (socketMatch(publicSocket, localSocket)) {
// likely debugging scenario with two nodes on local network
// set the node active right away
newNode->activatePublicSocket();
}
if (newNode->getType() == NODE_TYPE_VOXEL_SERVER ||
newNode->getType() == NODE_TYPE_AVATAR_MIXER ||
newNode->getType() == NODE_TYPE_AUDIO_MIXER) {
// this is currently the cheat we use to talk directly to our test servers on EC2
// to be removed when we have a proper identification strategy
newNode->activatePublicSocket();
}
addNodeToList(newNode);
return newNode;
} else {
if (node->getType() == NODE_TYPE_AUDIO_MIXER ||
node->getType() == NODE_TYPE_VOXEL_SERVER) {
// until the Audio class also uses our nodeList, we need to update
// the lastRecvTimeUsecs for the audio mixer so it doesn't get killed and re-added continously
node->setLastHeardMicrostamp(usecTimestampNow());
}
// we had this node already, do nothing for now
return &*node;
}
}
void EntityScriptServer::negotiateAudioFormat() {
auto nodeList = DependencyManager::get<NodeList>();
auto negotiateFormatPacket = NLPacket::create(PacketType::NegotiateAudioFormat);
auto codecPlugins = PluginManager::getInstance()->getCodecPlugins();
quint8 numberOfCodecs = (quint8)codecPlugins.size();
negotiateFormatPacket->writePrimitive(numberOfCodecs);
for (auto& plugin : codecPlugins) {
auto codecName = plugin->getName();
negotiateFormatPacket->writeString(codecName);
}
// grab our audio mixer from the NodeList, if it exists
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer) {
// send off this mute packet
nodeList->sendPacket(std::move(negotiateFormatPacket), *audioMixer);
}
}
void MessagesClient::sendMessage(const QString& channel, const QString& message) {
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer messagesMixer = nodeList->soloNodeOfType(NodeType::MessagesMixer);
if (messagesMixer) {
auto packetList = NLPacketList::create(PacketType::MessagesData, QByteArray(), true, true);
auto channelUtf8 = channel.toUtf8();
quint16 channelLength = channelUtf8.length();
packetList->writePrimitive(channelLength);
packetList->write(channelUtf8);
auto messageUtf8 = message.toUtf8();
quint16 messageLength = messageUtf8.length();
packetList->writePrimitive(messageLength);
packetList->write(messageUtf8);
nodeList->sendPacketList(std::move(packetList), *messagesMixer);
}
}
void AbstractAudioInterface::emitAudioPacket(const void* audioData, size_t bytes, quint16& sequenceNumber, const Transform& transform, PacketType packetType) {
static std::mutex _mutex;
using Locker = std::unique_lock<std::mutex>;
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer && audioMixer->getActiveSocket()) {
Locker lock(_mutex);
static std::unique_ptr<NLPacket> audioPacket = NLPacket::create(PacketType::Unknown);
quint8 isStereo = bytes == AudioConstants::NETWORK_FRAME_BYTES_STEREO ? 1 : 0;
audioPacket->setType(packetType);
// reset the audio packet so we can start writing
audioPacket->reset();
// write sequence number
audioPacket->writePrimitive(sequenceNumber++);
if (audioPacket->getType() == PacketType::SilentAudioFrame) {
// pack num silent samples
quint16 numSilentSamples = isStereo ?
AudioConstants::NETWORK_FRAME_SAMPLES_STEREO :
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL;
audioPacket->writePrimitive(numSilentSamples);
} else {
// set the mono/stereo byte
audioPacket->writePrimitive(isStereo);
}
// pack the three float positions
audioPacket->writePrimitive(transform.getTranslation());
// pack the orientation
audioPacket->writePrimitive(transform.getRotation());
if (audioPacket->getType() != PacketType::SilentAudioFrame) {
// audio samples have already been packed (written to networkAudioSamples)
audioPacket->setPayloadSize(audioPacket->getPayloadSize() + bytes);
static const int leadingBytes = sizeof(quint16) + sizeof(glm::vec3) + sizeof(glm::quat) + sizeof(quint8);
memcpy(audioPacket->getPayload() + leadingBytes, audioData, bytes);
}
nodeList->flagTimeForConnectionStep(LimitedNodeList::ConnectionStep::SendAudioPacket);
nodeList->sendUnreliablePacket(*audioPacket, *audioMixer);
}
}
bool AssetClient::getAsset(const QString& hash, const QString& extension, DataOffset start, DataOffset end,
ReceivedAssetCallback callback, ProgressCallback progressCallback) {
if (hash.length() != SHA256_HASH_HEX_LENGTH) {
qCWarning(asset_client) << "Invalid hash size";
return false;
}
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer assetServer = nodeList->soloNodeOfType(NodeType::AssetServer);
if (assetServer) {
auto messageID = ++_currentID;
auto payloadSize = sizeof(messageID) + SHA256_HASH_LENGTH + sizeof(uint8_t) + extension.length()
+ sizeof(start) + sizeof(end);
auto packet = NLPacket::create(PacketType::AssetGet, payloadSize, true);
qCDebug(asset_client) << "Requesting data from" << start << "to" << end << "of" << hash << "from asset-server.";
packet->writePrimitive(messageID);
packet->write(QByteArray::fromHex(hash.toLatin1()));
packet->writePrimitive(uint8_t(extension.length()));
packet->write(extension.toLatin1());
packet->writePrimitive(start);
packet->writePrimitive(end);
nodeList->sendPacket(std::move(packet), *assetServer);
_pendingRequests[assetServer][messageID] = { callback, progressCallback };
return true;
}
return false;
}
bool AssetClient::getAssetInfo(const QString& hash, const QString& extension, GetInfoCallback callback) {
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer assetServer = nodeList->soloNodeOfType(NodeType::AssetServer);
if (assetServer) {
auto messageID = ++_currentID;
auto payloadSize = sizeof(messageID) + SHA256_HASH_LENGTH + sizeof(uint8_t) + extension.length();
auto packet = NLPacket::create(PacketType::AssetGetInfo, payloadSize, true);
packet->writePrimitive(messageID);
packet->write(QByteArray::fromHex(hash.toLatin1()));
packet->writePrimitive(uint8_t(extension.length()));
packet->write(extension.toLatin1());
nodeList->sendPacket(std::move(packet), *assetServer);
_pendingInfoRequests[assetServer][messageID] = callback;
return true;
}
return false;
}
uint64_t AudioInjector::injectNextFrame() {
if (_state == AudioInjector::State::Finished) {
qDebug() << "AudioInjector::injectNextFrame called but AudioInjector has finished and was not restarted. Returning.";
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
// if we haven't setup the packet to send then do so now
static int positionOptionOffset = -1;
static int volumeOptionOffset = -1;
static int audioDataOffset = -1;
if (!_currentPacket) {
if (_currentSendOffset < 0 ||
_currentSendOffset >= _audioData.size()) {
_currentSendOffset = 0;
}
// make sure we actually have samples downloaded to inject
if (_audioData.size()) {
_outgoingSequenceNumber = 0;
_nextFrame = 0;
if (!_frameTimer) {
_frameTimer = std::unique_ptr<QElapsedTimer>(new QElapsedTimer);
}
_frameTimer->restart();
_currentPacket = NLPacket::create(PacketType::InjectAudio);
// setup the packet for injected audio
QDataStream audioPacketStream(_currentPacket.get());
// pack some placeholder sequence number for now
audioPacketStream << (quint16) 0;
// pack stream identifier (a generated UUID)
audioPacketStream << QUuid::createUuid();
// pack the stereo/mono type of the stream
audioPacketStream << _options.stereo;
// pack the flag for loopback
uchar loopbackFlag = (uchar) true;
audioPacketStream << loopbackFlag;
// pack the position for injected audio
positionOptionOffset = _currentPacket->pos();
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.position),
sizeof(_options.position));
// pack our orientation for injected audio
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.orientation),
sizeof(_options.orientation));
// pack zero for radius
float radius = 0;
audioPacketStream << radius;
// pack 255 for attenuation byte
volumeOptionOffset = _currentPacket->pos();
quint8 volume = MAX_INJECTOR_VOLUME;
audioPacketStream << volume;
audioPacketStream << _options.ignorePenumbra;
audioDataOffset = _currentPacket->pos();
} else {
// no samples to inject, return immediately
qDebug() << "AudioInjector::injectNextFrame() called with no samples to inject. Returning.";
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
}
int bytesToCopy = std::min((_options.stereo ? 2 : 1) * AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL,
_audioData.size() - _currentSendOffset);
// Measure the loudness of this frame
_loudness = 0.0f;
for (int i = 0; i < bytesToCopy; i += sizeof(int16_t)) {
_loudness += abs(*reinterpret_cast<int16_t*>(_audioData.data() + _currentSendOffset + i)) /
(AudioConstants::MAX_SAMPLE_VALUE / 2.0f);
}
_loudness /= (float)(bytesToCopy / sizeof(int16_t));
_currentPacket->seek(0);
// pack the sequence number
_currentPacket->writePrimitive(_outgoingSequenceNumber);
_currentPacket->seek(positionOptionOffset);
_currentPacket->writePrimitive(_options.position);
_currentPacket->writePrimitive(_options.orientation);
quint8 volume = MAX_INJECTOR_VOLUME * _options.volume;
_currentPacket->seek(volumeOptionOffset);
_currentPacket->writePrimitive(volume);
_currentPacket->seek(audioDataOffset);
// copy the next NETWORK_BUFFER_LENGTH_BYTES_PER_CHANNEL bytes to the packet
_currentPacket->write(_audioData.data() + _currentSendOffset, bytesToCopy);
// set the correct size used for this packet
_currentPacket->setPayloadSize(_currentPacket->pos());
// grab our audio mixer from the NodeList, if it exists
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer) {
// send off this audio packet
nodeList->sendUnreliablePacket(*_currentPacket, *audioMixer);
_outgoingSequenceNumber++;
}
_currentSendOffset += bytesToCopy;
if (_currentSendOffset >= _audioData.size()) {
// we're at the end of the audio data to send
if (_options.loop) {
// we were asked to loop, set our send offset to 0
_currentSendOffset = 0;
} else {
// we weren't to loop, say that we're done now
finish();
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
}
if (_currentSendOffset == bytesToCopy) {
// ask AudioInjectorManager to call us right away again to
// immediately send the first two frames so the mixer can start using the audio right away
return NEXT_FRAME_DELTA_IMMEDIATELY;
} else {
return (++_nextFrame * AudioConstants::NETWORK_FRAME_USECS) - _frameTimer->nsecsElapsed() / 1000;
}
}
int64_t AudioInjector::injectNextFrame() {
if (_state == AudioInjector::State::Finished) {
qDebug() << "AudioInjector::injectNextFrame called but AudioInjector has finished and was not restarted. Returning.";
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
// if we haven't setup the packet to send then do so now
static int positionOptionOffset = -1;
static int volumeOptionOffset = -1;
static int audioDataOffset = -1;
if (!_currentPacket) {
if (_currentSendOffset < 0 ||
_currentSendOffset >= _audioData.size()) {
_currentSendOffset = 0;
}
// make sure we actually have samples downloaded to inject
if (_audioData.size()) {
int sampleSize = (_options.stereo ? 2 : 1) * sizeof(AudioConstants::AudioSample);
auto numSamples = static_cast<int>(_audioData.size() / sampleSize);
auto targetSize = numSamples * sampleSize;
if (targetSize != _audioData.size()) {
qDebug() << "Resizing audio that doesn't end at multiple of sample size, resizing from "
<< _audioData.size() << " to " << targetSize;
_audioData.resize(targetSize);
}
_outgoingSequenceNumber = 0;
_nextFrame = 0;
if (!_frameTimer) {
_frameTimer = std::unique_ptr<QElapsedTimer>(new QElapsedTimer);
}
_frameTimer->restart();
_currentPacket = NLPacket::create(PacketType::InjectAudio);
// setup the packet for injected audio
QDataStream audioPacketStream(_currentPacket.get());
// pack some placeholder sequence number for now
audioPacketStream << (quint16) 0;
// pack stream identifier (a generated UUID)
audioPacketStream << QUuid::createUuid();
// pack the stereo/mono type of the stream
audioPacketStream << _options.stereo;
// pack the flag for loopback
uchar loopbackFlag = (uchar)true;
audioPacketStream << loopbackFlag;
// pack the position for injected audio
positionOptionOffset = _currentPacket->pos();
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.position),
sizeof(_options.position));
// pack our orientation for injected audio
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.orientation),
sizeof(_options.orientation));
// pack zero for radius
float radius = 0;
audioPacketStream << radius;
// pack 255 for attenuation byte
volumeOptionOffset = _currentPacket->pos();
quint8 volume = MAX_INJECTOR_VOLUME;
audioPacketStream << volume;
audioPacketStream << _options.ignorePenumbra;
audioDataOffset = _currentPacket->pos();
} else {
// no samples to inject, return immediately
qDebug() << "AudioInjector::injectNextFrame() called with no samples to inject. Returning.";
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
}
if (!_frameTimer->isValid()) {
// in the case where we have been restarted, the frame timer will be invalid and we need to start it back over here
_frameTimer->restart();
}
int totalBytesLeftToCopy = (_options.stereo ? 2 : 1) * AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL;
if (!_options.loop) {
// If we aren't looping, let's make sure we don't read past the end
totalBytesLeftToCopy = std::min(totalBytesLeftToCopy, _audioData.size() - _currentSendOffset);
}
// Measure the loudness of this frame
_loudness = 0.0f;
for (int i = 0; i < totalBytesLeftToCopy; i += sizeof(int16_t)) {
_loudness += abs(*reinterpret_cast<int16_t*>(_audioData.data() + ((_currentSendOffset + i) % _audioData.size()))) /
(AudioConstants::MAX_SAMPLE_VALUE / 2.0f);
}
_loudness /= (float)(totalBytesLeftToCopy/ sizeof(int16_t));
_currentPacket->seek(0);
// pack the sequence number
_currentPacket->writePrimitive(_outgoingSequenceNumber);
_currentPacket->seek(positionOptionOffset);
_currentPacket->writePrimitive(_options.position);
_currentPacket->writePrimitive(_options.orientation);
quint8 volume = MAX_INJECTOR_VOLUME * _options.volume;
_currentPacket->seek(volumeOptionOffset);
_currentPacket->writePrimitive(volume);
_currentPacket->seek(audioDataOffset);
while (totalBytesLeftToCopy > 0) {
int bytesToCopy = std::min(totalBytesLeftToCopy, _audioData.size() - _currentSendOffset);
_currentPacket->write(_audioData.data() + _currentSendOffset, bytesToCopy);
_currentSendOffset += bytesToCopy;
totalBytesLeftToCopy -= bytesToCopy;
if (_options.loop && _currentSendOffset >= _audioData.size()) {
_currentSendOffset = 0;
}
}
// set the correct size used for this packet
_currentPacket->setPayloadSize(_currentPacket->pos());
// grab our audio mixer from the NodeList, if it exists
auto nodeList = DependencyManager::get<NodeList>();
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer) {
// send off this audio packet
nodeList->sendUnreliablePacket(*_currentPacket, *audioMixer);
_outgoingSequenceNumber++;
}
if (_currentSendOffset >= _audioData.size() && !_options.loop) {
finish();
return NEXT_FRAME_DELTA_ERROR_OR_FINISHED;
}
if (!_hasSentFirstFrame) {
_hasSentFirstFrame = true;
// ask AudioInjectorManager to call us right away again to
// immediately send the first two frames so the mixer can start using the audio right away
return NEXT_FRAME_DELTA_IMMEDIATELY;
}
const int MAX_ALLOWED_FRAMES_TO_FALL_BEHIND = 7;
int64_t currentTime = _frameTimer->nsecsElapsed() / 1000;
auto currentFrameBasedOnElapsedTime = currentTime / AudioConstants::NETWORK_FRAME_USECS;
if (currentFrameBasedOnElapsedTime - _nextFrame > MAX_ALLOWED_FRAMES_TO_FALL_BEHIND) {
// If we are falling behind by more frames than our threshold, let's skip the frames ahead
qDebug() << this << "injectNextFrame() skipping ahead, fell behind by " << (currentFrameBasedOnElapsedTime - _nextFrame) << " frames";
_nextFrame = currentFrameBasedOnElapsedTime;
_currentSendOffset = _nextFrame * AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL * (_options.stereo ? 2 : 1) % _audioData.size();
}
int64_t playNextFrameAt = ++_nextFrame * AudioConstants::NETWORK_FRAME_USECS;
return std::max(INT64_C(0), playNextFrameAt - currentTime);
}
void AudioInjector::injectToMixer() {
if (_currentSendOffset < 0 ||
_currentSendOffset >= _audioData.size()) {
_currentSendOffset = 0;
}
auto nodeList = DependencyManager::get<NodeList>();
// make sure we actually have samples downloaded to inject
if (_audioData.size()) {
auto audioPacket = NLPacket::create(PacketType::InjectAudio);
// setup the packet for injected audio
QDataStream audioPacketStream(audioPacket.get());
// pack some placeholder sequence number for now
audioPacketStream << (quint16) 0;
// pack stream identifier (a generated UUID)
audioPacketStream << QUuid::createUuid();
// pack the stereo/mono type of the stream
audioPacketStream << _options.stereo;
// pack the flag for loopback
uchar loopbackFlag = (uchar) true;
audioPacketStream << loopbackFlag;
// pack the position for injected audio
int positionOptionOffset = audioPacket->pos();
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.position),
sizeof(_options.position));
// pack our orientation for injected audio
audioPacketStream.writeRawData(reinterpret_cast<const char*>(&_options.orientation),
sizeof(_options.orientation));
// pack zero for radius
float radius = 0;
audioPacketStream << radius;
// pack 255 for attenuation byte
int volumeOptionOffset = audioPacket->pos();
quint8 volume = MAX_INJECTOR_VOLUME * _options.volume;
audioPacketStream << volume;
audioPacketStream << _options.ignorePenumbra;
int audioDataOffset = audioPacket->pos();
QElapsedTimer timer;
timer.start();
int nextFrame = 0;
bool shouldLoop = _options.loop;
// loop to send off our audio in NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL byte chunks
quint16 outgoingInjectedAudioSequenceNumber = 0;
while (_currentSendOffset < _audioData.size() && !_shouldStop) {
int bytesToCopy = std::min(((_options.stereo) ? 2 : 1) * AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL,
_audioData.size() - _currentSendOffset);
// Measure the loudness of this frame
_loudness = 0.0f;
for (int i = 0; i < bytesToCopy; i += sizeof(int16_t)) {
_loudness += abs(*reinterpret_cast<int16_t*>(_audioData.data() + _currentSendOffset + i)) /
(AudioConstants::MAX_SAMPLE_VALUE / 2.0f);
}
_loudness /= (float)(bytesToCopy / sizeof(int16_t));
audioPacket->seek(0);
// pack the sequence number
audioPacket->writePrimitive(outgoingInjectedAudioSequenceNumber);
audioPacket->seek(positionOptionOffset);
audioPacket->writePrimitive(_options.position);
audioPacket->writePrimitive(_options.orientation);
volume = MAX_INJECTOR_VOLUME * _options.volume;
audioPacket->seek(volumeOptionOffset);
audioPacket->writePrimitive(volume);
audioPacket->seek(audioDataOffset);
// copy the next NETWORK_BUFFER_LENGTH_BYTES_PER_CHANNEL bytes to the packet
audioPacket->write(_audioData.data() + _currentSendOffset, bytesToCopy);
// set the correct size used for this packet
audioPacket->setPayloadSize(audioPacket->pos());
// grab our audio mixer from the NodeList, if it exists
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
if (audioMixer) {
// send off this audio packet
nodeList->sendUnreliablePacket(*audioPacket, *audioMixer);
outgoingInjectedAudioSequenceNumber++;
}
_currentSendOffset += bytesToCopy;
// send two packets before the first sleep so the mixer can start playback right away
if (_currentSendOffset != bytesToCopy && _currentSendOffset < _audioData.size()) {
// process events in case we have been told to stop and be deleted
QCoreApplication::processEvents();
if (_shouldStop) {
break;
}
// not the first packet and not done
// sleep for the appropriate time
int usecToSleep = (++nextFrame * AudioConstants::NETWORK_FRAME_USECS) - timer.nsecsElapsed() / 1000;
if (usecToSleep > 0) {
usleep(usecToSleep);
}
}
if (shouldLoop && _currentSendOffset >= _audioData.size()) {
_currentSendOffset = 0;
}
}
}
setIsFinished(true);
_isPlaying = !_isFinished; // Which can be false if a restart was requested
}
void AudioInjector::injectToMixer() {
if (_currentSendPosition < 0 ||
_currentSendPosition >= _audioData.size()) {
_currentSendPosition = 0;
}
auto nodeList = DependencyManager::get<NodeList>();
// make sure we actually have samples downloaded to inject
if (_audioData.size()) {
// setup the packet for injected audio
QByteArray injectAudioPacket = nodeList->byteArrayWithPopulatedHeader(PacketTypeInjectAudio);
QDataStream packetStream(&injectAudioPacket, QIODevice::Append);
// pack some placeholder sequence number for now
int numPreSequenceNumberBytes = injectAudioPacket.size();
packetStream << (quint16)0;
// pack stream identifier (a generated UUID)
packetStream << QUuid::createUuid();
// pack the stereo/mono type of the stream
packetStream << _options.stereo;
// pack the flag for loopback
uchar loopbackFlag = (uchar) true;
packetStream << loopbackFlag;
// pack the position for injected audio
int positionOptionOffset = injectAudioPacket.size();
packetStream.writeRawData(reinterpret_cast<const char*>(&_options.position),
sizeof(_options.position));
// pack our orientation for injected audio
int orientationOptionOffset = injectAudioPacket.size();
packetStream.writeRawData(reinterpret_cast<const char*>(&_options.orientation),
sizeof(_options.orientation));
// pack zero for radius
float radius = 0;
packetStream << radius;
// pack 255 for attenuation byte
int volumeOptionOffset = injectAudioPacket.size();
quint8 volume = MAX_INJECTOR_VOLUME * _options.volume;
packetStream << volume;
packetStream << _options.ignorePenumbra;
QElapsedTimer timer;
timer.start();
int nextFrame = 0;
int numPreAudioDataBytes = injectAudioPacket.size();
bool shouldLoop = _options.loop;
// loop to send off our audio in NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL byte chunks
quint16 outgoingInjectedAudioSequenceNumber = 0;
while (_currentSendPosition < _audioData.size() && !_shouldStop) {
int bytesToCopy = std::min(((_options.stereo) ? 2 : 1) * AudioConstants::NETWORK_FRAME_BYTES_PER_CHANNEL,
_audioData.size() - _currentSendPosition);
// Measure the loudness of this frame
_loudness = 0.0f;
for (int i = 0; i < bytesToCopy; i += sizeof(int16_t)) {
_loudness += abs(*reinterpret_cast<int16_t*>(_audioData.data() + _currentSendPosition + i)) /
(AudioConstants::MAX_SAMPLE_VALUE / 2.0f);
}
_loudness /= (float)(bytesToCopy / sizeof(int16_t));
memcpy(injectAudioPacket.data() + positionOptionOffset,
&_options.position,
sizeof(_options.position));
memcpy(injectAudioPacket.data() + orientationOptionOffset,
&_options.orientation,
sizeof(_options.orientation));
volume = MAX_INJECTOR_VOLUME * _options.volume;
memcpy(injectAudioPacket.data() + volumeOptionOffset, &volume, sizeof(volume));
// resize the QByteArray to the right size
injectAudioPacket.resize(numPreAudioDataBytes + bytesToCopy);
// pack the sequence number
memcpy(injectAudioPacket.data() + numPreSequenceNumberBytes,
&outgoingInjectedAudioSequenceNumber, sizeof(quint16));
// copy the next NETWORK_BUFFER_LENGTH_BYTES_PER_CHANNEL bytes to the packet
memcpy(injectAudioPacket.data() + numPreAudioDataBytes,
_audioData.data() + _currentSendPosition, bytesToCopy);
// grab our audio mixer from the NodeList, if it exists
SharedNodePointer audioMixer = nodeList->soloNodeOfType(NodeType::AudioMixer);
// send off this audio packet
nodeList->writeDatagram(injectAudioPacket, audioMixer);
outgoingInjectedAudioSequenceNumber++;
_currentSendPosition += bytesToCopy;
// send two packets before the first sleep so the mixer can start playback right away
if (_currentSendPosition != bytesToCopy && _currentSendPosition < _audioData.size()) {
// process events in case we have been told to stop and be deleted
QCoreApplication::processEvents();
if (_shouldStop) {
break;
}
// not the first packet and not done
// sleep for the appropriate time
int usecToSleep = (++nextFrame * AudioConstants::NETWORK_FRAME_USECS) - timer.nsecsElapsed() / 1000;
if (usecToSleep > 0) {
usleep(usecToSleep);
}
}
if (shouldLoop && _currentSendPosition >= _audioData.size()) {
_currentSendPosition = 0;
}
}
}
setIsFinished(true);
}