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NekoX/TMessagesProj/jni/tgcalls/Manager.cpp

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2020-08-14 18:58:22 +02:00
#include "Manager.h"
#include "rtc_base/byte_buffer.h"
namespace tgcalls {
namespace {
rtc::Thread *makeNetworkThread() {
static std::unique_ptr<rtc::Thread> value = rtc::Thread::CreateWithSocketServer();
value->SetName("WebRTC-Network", nullptr);
value->Start();
return value.get();
}
rtc::Thread *getNetworkThread() {
static rtc::Thread *value = makeNetworkThread();
return value;
}
rtc::Thread *makeMediaThread() {
static std::unique_ptr<rtc::Thread> value = rtc::Thread::Create();
value->SetName("WebRTC-Media", nullptr);
value->Start();
return value.get();
}
} // namespace
rtc::Thread *Manager::getMediaThread() {
static rtc::Thread *value = makeMediaThread();
return value;
}
Manager::Manager(rtc::Thread *thread, Descriptor &&descriptor) :
_thread(thread),
_encryptionKey(descriptor.encryptionKey),
_signaling(
EncryptedConnection::Type::Signaling,
_encryptionKey,
[=](int delayMs, int cause) { sendSignalingAsync(delayMs, cause); }),
_enableP2P(descriptor.config.enableP2P),
_rtcServers(std::move(descriptor.rtcServers)),
_videoCapture(std::move(descriptor.videoCapture)),
_stateUpdated(std::move(descriptor.stateUpdated)),
_remoteMediaStateUpdated(std::move(descriptor.remoteMediaStateUpdated)),
_remoteBatteryLevelIsLowUpdated(std::move(descriptor.remoteBatteryLevelIsLowUpdated)),
_remotePrefferedAspectRatioUpdated(std::move(descriptor.remotePrefferedAspectRatioUpdated)),
_signalingDataEmitted(std::move(descriptor.signalingDataEmitted)),
_signalBarsUpdated(std::move(descriptor.signalBarsUpdated)),
_localPreferredVideoAspectRatio(descriptor.config.preferredAspectRatio),
_enableHighBitrateVideo(descriptor.config.enableHighBitrateVideo) {
assert(_thread->IsCurrent());
assert(_stateUpdated != nullptr);
assert(_signalingDataEmitted != nullptr);
_sendSignalingMessage = [=](const Message &message) {
if (const auto prepared = _signaling.prepareForSending(message)) {
_signalingDataEmitted(prepared->bytes);
return prepared->counter;
}
return uint32_t(0);
};
_sendTransportMessage = [=](Message &&message) {
_networkManager->perform(RTC_FROM_HERE, [message = std::move(message)](NetworkManager *networkManager) {
networkManager->sendMessage(message);
});
};
}
Manager::~Manager() {
assert(_thread->IsCurrent());
}
void Manager::sendSignalingAsync(int delayMs, int cause) {
auto task = [weak = std::weak_ptr<Manager>(shared_from_this()), cause] {
const auto strong = weak.lock();
if (!strong) {
return;
}
if (const auto prepared = strong->_signaling.prepareForSendingService(cause)) {
strong->_signalingDataEmitted(prepared->bytes);
}
};
if (delayMs) {
_thread->PostDelayedTask(RTC_FROM_HERE, std::move(task), delayMs);
} else {
_thread->PostTask(RTC_FROM_HERE, std::move(task));
}
}
void Manager::start() {
const auto weak = std::weak_ptr<Manager>(shared_from_this());
const auto thread = _thread;
const auto sendSignalingMessage = [=](Message &&message) {
thread->PostTask(RTC_FROM_HERE, [=, message = std::move(message)]() mutable {
const auto strong = weak.lock();
if (!strong) {
return;
}
strong->_sendSignalingMessage(std::move(message));
});
};
_networkManager.reset(new ThreadLocalObject<NetworkManager>(getNetworkThread(), [weak, thread, sendSignalingMessage, encryptionKey = _encryptionKey, enableP2P = _enableP2P, rtcServers = _rtcServers] {
return new NetworkManager(
getNetworkThread(),
encryptionKey,
enableP2P,
rtcServers,
[=](const NetworkManager::State &state) {
thread->PostTask(RTC_FROM_HERE, [=] {
const auto strong = weak.lock();
if (!strong) {
return;
}
const auto mappedState = state.isReadyToSendData
? State::Established
: State::Reconnecting;
if (state.isReadyToSendData) {
if (!strong->_didConnectOnce) {
strong->_didConnectOnce = true;
}
}
strong->_state = mappedState;
strong->_stateUpdated(mappedState);
strong->_mediaManager->perform(RTC_FROM_HERE, [=](MediaManager *mediaManager) {
mediaManager->setIsConnected(state.isReadyToSendData);
});
});
},
[=](DecryptedMessage &&message) {
thread->PostTask(RTC_FROM_HERE, [=, message = std::move(message)]() mutable {
if (const auto strong = weak.lock()) {
strong->receiveMessage(std::move(message));
}
});
},
sendSignalingMessage,
[=](int delayMs, int cause) {
const auto task = [=] {
if (const auto strong = weak.lock()) {
strong->_networkManager->perform(RTC_FROM_HERE, [=](NetworkManager *networkManager) {
networkManager->sendTransportService(cause);
});
}
};
if (delayMs) {
thread->PostDelayedTask(RTC_FROM_HERE, task, delayMs);
} else {
thread->PostTask(RTC_FROM_HERE, task);
}
});
}));
bool isOutgoing = _encryptionKey.isOutgoing;
_mediaManager.reset(new ThreadLocalObject<MediaManager>(getMediaThread(), [weak, isOutgoing, thread, sendSignalingMessage, videoCapture = _videoCapture, localPreferredVideoAspectRatio = _localPreferredVideoAspectRatio, enableHighBitrateVideo = _enableHighBitrateVideo, signalBarsUpdated = _signalBarsUpdated]() {
return new MediaManager(
getMediaThread(),
isOutgoing,
videoCapture,
sendSignalingMessage,
[=](Message &&message) {
thread->PostTask(RTC_FROM_HERE, [=, message = std::move(message)]() mutable {
const auto strong = weak.lock();
if (!strong) {
return;
}
strong->_sendTransportMessage(std::move(message));
});
},
signalBarsUpdated,
localPreferredVideoAspectRatio,
enableHighBitrateVideo);
}));
_mediaManager->perform(RTC_FROM_HERE, [](MediaManager *mediaManager) {
mediaManager->start();
});
}
void Manager::receiveSignalingData(const std::vector<uint8_t> &data) {
if (auto decrypted = _signaling.handleIncomingPacket((const char*)data.data(), data.size())) {
receiveMessage(std::move(decrypted->main));
for (auto &message : decrypted->additional) {
receiveMessage(std::move(message));
}
}
}
void Manager::receiveMessage(DecryptedMessage &&message) {
const auto data = &message.message.data;
if (const auto candidatesList = absl::get_if<CandidatesListMessage>(data)) {
_networkManager->perform(RTC_FROM_HERE, [message = std::move(message)](NetworkManager *networkManager) mutable {
networkManager->receiveSignalingMessage(std::move(message));
});
} else if (const auto videoFormats = absl::get_if<VideoFormatsMessage>(data)) {
_mediaManager->perform(RTC_FROM_HERE, [message = std::move(message)](MediaManager *mediaManager) mutable {
mediaManager->receiveMessage(std::move(message));
});
} else if (const auto remoteMediaState = absl::get_if<RemoteMediaStateMessage>(data)) {
if (_remoteMediaStateUpdated) {
_remoteMediaStateUpdated(
remoteMediaState->audio,
remoteMediaState->video);
}
_mediaManager->perform(RTC_FROM_HERE, [video = remoteMediaState->video](MediaManager *mediaManager) {
mediaManager->remoteVideoStateUpdated(video);
});
} else if (const auto remoteBatteryLevelIsLow = absl::get_if<RemoteBatteryLevelIsLowMessage>(data)) {
if (_remoteBatteryLevelIsLowUpdated) {
_remoteBatteryLevelIsLowUpdated(remoteBatteryLevelIsLow->batteryLow);
}
} else {
if (const auto videoParameters = absl::get_if<VideoParametersMessage>(data)) {
float value = ((float)videoParameters->aspectRatio) / 1000.0;
if (_remotePrefferedAspectRatioUpdated) {
_remotePrefferedAspectRatioUpdated(value);
}
}
_mediaManager->perform(RTC_FROM_HERE, [=, message = std::move(message)](MediaManager *mediaManager) mutable {
mediaManager->receiveMessage(std::move(message));
});
}
}
void Manager::setVideoCapture(std::shared_ptr<VideoCaptureInterface> videoCapture) {
assert(_didConnectOnce);
if (_videoCapture == videoCapture) {
return;
}
_videoCapture = videoCapture;
_mediaManager->perform(RTC_FROM_HERE, [videoCapture](MediaManager *mediaManager) {
mediaManager->setSendVideo(videoCapture);
});
}
void Manager::setMuteOutgoingAudio(bool mute) {
_mediaManager->perform(RTC_FROM_HERE, [mute](MediaManager *mediaManager) {
mediaManager->setMuteOutgoingAudio(mute);
});
}
void Manager::setIncomingVideoOutput(std::shared_ptr<rtc::VideoSinkInterface<webrtc::VideoFrame>> sink) {
_mediaManager->perform(RTC_FROM_HERE, [sink](MediaManager *mediaManager) {
mediaManager->setIncomingVideoOutput(sink);
});
}
void Manager::setIsLowBatteryLevel(bool isLowBatteryLevel) {
_sendTransportMessage({ RemoteBatteryLevelIsLowMessage{ isLowBatteryLevel } });
}
} // namespace tgcalls