Nagram/TMessagesProj/jni/voip/tgcalls/MediaManager.cpp
2023-10-29 00:52:06 +04:00

1145 lines
41 KiB
C++

#include "MediaManager.h"
#include "Instance.h"
#include "VideoCaptureInterfaceImpl.h"
#include "VideoCapturerInterface.h"
#include "CodecSelectHelper.h"
#include "AudioDeviceHelper.h"
#include "Message.h"
#include "platform/PlatformInterface.h"
#include "StaticThreads.h"
#include "api/audio_codecs/audio_decoder_factory_template.h"
#include "api/audio_codecs/audio_encoder_factory_template.h"
#include "api/audio_codecs/opus/audio_decoder_opus.h"
#include "api/audio_codecs/opus/audio_encoder_opus.h"
#include "api/task_queue/default_task_queue_factory.h"
#include "media/engine/webrtc_media_engine.h"
#include "system_wrappers/include/field_trial.h"
#include "api/video/builtin_video_bitrate_allocator_factory.h"
#include "call/call.h"
#include "modules/rtp_rtcp/source/rtp_util.h"
#include "api/call/audio_sink.h"
#include "modules/audio_processing/audio_buffer.h"
#include "modules/audio_device/include/audio_device_factory.h"
#ifdef WEBRTC_IOS
#include "platform/darwin/iOS/tgcalls_audio_device_module_ios.h"
#endif
#include "FieldTrialsConfig.h"
namespace tgcalls {
namespace {
constexpr uint32_t ssrcAudioIncoming = 1;
constexpr uint32_t ssrcAudioOutgoing = 2;
constexpr uint32_t ssrcAudioFecIncoming = 5;
constexpr uint32_t ssrcAudioFecOutgoing = 6;
constexpr uint32_t ssrcVideoIncoming = 3;
constexpr uint32_t ssrcVideoOutgoing = 4;
constexpr uint32_t ssrcVideoFecIncoming = 7;
constexpr uint32_t ssrcVideoFecOutgoing = 8;
VideoCaptureInterfaceObject *GetVideoCaptureAssumingSameThread(VideoCaptureInterface *videoCapture) {
return videoCapture
? static_cast<VideoCaptureInterfaceImpl*>(videoCapture)->object()->getSyncAssumingSameThread()
: nullptr;
}
class AudioCaptureAnalyzer : public webrtc::CustomAudioAnalyzer {
private:
void Initialize(int sample_rate_hz, int num_channels) override {
}
// Analyzes the given capture or render signal.
void Analyze(const webrtc::AudioBuffer* audio) override {
_analyze(audio);
}
// Returns a string representation of the module state.
std::string ToString() const override {
return "analyzing";
}
std::function<void(const webrtc::AudioBuffer*)> _analyze;
public:
AudioCaptureAnalyzer(std::function<void(const webrtc::AudioBuffer*)> analyze) :
_analyze(analyze) {
}
virtual ~AudioCaptureAnalyzer() = default;
};
class AudioCapturePostProcessor : public webrtc::CustomProcessing {
public:
AudioCapturePostProcessor(std::function<void(float)> updated, std::vector<float> *externalAudioSamples, webrtc::Mutex *externalAudioSamplesMutex) :
_updated(updated),
_externalAudioSamples(externalAudioSamples),
_externalAudioSamplesMutex(externalAudioSamplesMutex) {
}
virtual ~AudioCapturePostProcessor() {
}
private:
virtual void Initialize(int sample_rate_hz, int num_channels) override {
}
virtual void Process(webrtc::AudioBuffer *buffer) override {
if (!buffer) {
return;
}
if (buffer->num_channels() != 1) {
return;
}
float peak = 0;
int peakCount = 0;
const float *samples = buffer->channels_const()[0];
for (int i = 0; i < buffer->num_frames(); i++) {
float sample = samples[i];
if (sample < 0) {
sample = -sample;
}
if (peak < sample) {
peak = sample;
}
peakCount += 1;
}
_peakCount += peakCount;
if (_peak < peak) {
_peak = peak;
}
if (_peakCount >= 1200) {
float level = _peak / 8000.0f;
_peak = 0;
_peakCount = 0;
_updated(level);
}
_externalAudioSamplesMutex->Lock();
if (!_externalAudioSamples->empty()) {
float *bufferData = buffer->channels()[0];
int takenSamples = 0;
for (int i = 0; i < _externalAudioSamples->size() && i < buffer->num_frames(); i++) {
float sample = (*_externalAudioSamples)[i];
sample += bufferData[i];
sample = std::min(sample, 32768.f);
sample = std::max(sample, -32768.f);
bufferData[i] = sample;
takenSamples++;
}
if (takenSamples != 0) {
_externalAudioSamples->erase(_externalAudioSamples->begin(), _externalAudioSamples->begin() + takenSamples);
}
}
_externalAudioSamplesMutex->Unlock();
}
virtual std::string ToString() const override {
return "CustomPostProcessing";
}
virtual void SetRuntimeSetting(webrtc::AudioProcessing::RuntimeSetting setting) override {
}
private:
std::function<void(float)> _updated;
int32_t _peakCount = 0;
float _peak = 0;
std::vector<float> *_externalAudioSamples = nullptr;
webrtc::Mutex *_externalAudioSamplesMutex = nullptr;
};
} // namespace
class VideoSinkInterfaceProxyImpl : public rtc::VideoSinkInterface<webrtc::VideoFrame> {
public:
VideoSinkInterfaceProxyImpl(bool rewriteRotation) :
_rewriteRotation(rewriteRotation) {
}
virtual ~VideoSinkInterfaceProxyImpl() {
}
virtual void OnFrame(const webrtc::VideoFrame& frame) override {
if (const auto strong = _impl.lock()) {
if (_rewriteRotation) {
webrtc::VideoFrame updatedFrame = frame;
//updatedFrame.set_rotation(webrtc::VideoRotation::kVideoRotation_90);
strong->OnFrame(updatedFrame);
} else {
strong->OnFrame(frame);
}
}
}
virtual void OnDiscardedFrame() override {
if (const auto strong = _impl.lock()) {
strong->OnDiscardedFrame();
}
}
void setSink(std::weak_ptr<rtc::VideoSinkInterface<webrtc::VideoFrame>> impl) {
_impl = impl;
}
private:
bool _rewriteRotation = false;
std::weak_ptr<rtc::VideoSinkInterface<webrtc::VideoFrame>> _impl;
};
class AudioTrackSinkInterfaceImpl: public webrtc::AudioSinkInterface {
private:
std::function<void(float)> _update;
int _peakCount = 0;
uint16_t _peak = 0;
public:
AudioTrackSinkInterfaceImpl(std::function<void(float)> update) :
_update(update) {
}
virtual ~AudioTrackSinkInterfaceImpl() {
}
virtual void OnData(const Data& audio) override {
if (audio.channels == 1) {
int16_t *samples = (int16_t *)audio.data;
int numberOfSamplesInFrame = (int)audio.samples_per_channel;
for (int i = 0; i < numberOfSamplesInFrame; i++) {
int16_t sample = samples[i];
if (sample < 0) {
sample = -sample;
}
if (_peak < sample) {
_peak = sample;
}
_peakCount += 1;
}
if (_peakCount >= 1200) {
float level = ((float)(_peak)) / 4000.0f;
_peak = 0;
_peakCount = 0;
_update(level);
}
}
}
};
MediaManager::MediaManager(
rtc::Thread *thread,
bool isOutgoing,
ProtocolVersion protocolVersion,
const MediaDevicesConfig &devicesConfig,
std::shared_ptr<VideoCaptureInterface> videoCapture,
std::function<void(Message &&)> sendSignalingMessage,
std::function<void(Message &&)> sendTransportMessage,
std::function<void(int)> signalBarsUpdated,
std::function<void(float, float)> audioLevelsUpdated,
std::function<rtc::scoped_refptr<webrtc::AudioDeviceModule>(webrtc::TaskQueueFactory*)> createAudioDeviceModule,
bool enableHighBitrateVideo,
std::vector<std::string> preferredCodecs,
std::shared_ptr<PlatformContext> platformContext) :
_thread(thread),
_eventLog(std::make_unique<webrtc::RtcEventLogNull>()),
_taskQueueFactory(webrtc::CreateDefaultTaskQueueFactory()),
_sendSignalingMessage(std::move(sendSignalingMessage)),
_sendTransportMessage(std::move(sendTransportMessage)),
_signalBarsUpdated(std::move(signalBarsUpdated)),
_audioLevelUpdated(std::move(audioLevelsUpdated)),
_createAudioDeviceModule(std::move(createAudioDeviceModule)),
_protocolVersion(protocolVersion),
_outgoingVideoState(videoCapture ? VideoState::Active : VideoState::Inactive),
_videoCapture(std::move(videoCapture)),
_enableHighBitrateVideo(enableHighBitrateVideo),
_platformContext(platformContext) {
bool rewriteFrameRotation = false;
switch (_protocolVersion) {
case ProtocolVersion::V0:
rewriteFrameRotation = true;
break;
case ProtocolVersion::V1:
rewriteFrameRotation = false;
break;
default:
break;
}
_incomingVideoSinkProxy.reset(new VideoSinkInterfaceProxyImpl(rewriteFrameRotation));
_ssrcAudio.incoming = isOutgoing ? ssrcAudioIncoming : ssrcAudioOutgoing;
_ssrcAudio.outgoing = (!isOutgoing) ? ssrcAudioIncoming : ssrcAudioOutgoing;
_ssrcAudio.fecIncoming = isOutgoing ? ssrcAudioFecIncoming : ssrcAudioFecOutgoing;
_ssrcAudio.fecOutgoing = (!isOutgoing) ? ssrcAudioFecIncoming : ssrcAudioFecOutgoing;
_ssrcVideo.incoming = isOutgoing ? ssrcVideoIncoming : ssrcVideoOutgoing;
_ssrcVideo.outgoing = (!isOutgoing) ? ssrcVideoIncoming : ssrcVideoOutgoing;
_ssrcVideo.fecIncoming = isOutgoing ? ssrcVideoFecIncoming : ssrcVideoFecOutgoing;
_ssrcVideo.fecOutgoing = (!isOutgoing) ? ssrcVideoFecIncoming : ssrcVideoFecOutgoing;
_audioNetworkInterface = std::unique_ptr<MediaManager::NetworkInterfaceImpl>(new MediaManager::NetworkInterfaceImpl(this, false));
_videoNetworkInterface = std::unique_ptr<MediaManager::NetworkInterfaceImpl>(new MediaManager::NetworkInterfaceImpl(this, true));
webrtc::field_trial::InitFieldTrialsFromString(
"WebRTC-Audio-SendSideBwe/Enabled/"
"WebRTC-Audio-Allocation/min:32kbps,max:32kbps/"
"WebRTC-Audio-OpusMinPacketLossRate/Enabled-1/"
"WebRTC-FlexFEC-03/Enabled/"
"WebRTC-FlexFEC-03-Advertised/Enabled/"
"WebRTC-Turn-AllowSystemPorts/Enabled/"
"WebRTC-Audio-iOS-Holding/Enabled/"
);
PlatformInterface::SharedInstance()->configurePlatformAudio();
_videoBitrateAllocatorFactory = webrtc::CreateBuiltinVideoBitrateAllocatorFactory();
cricket::MediaEngineDependencies mediaDeps;
mediaDeps.task_queue_factory = _taskQueueFactory.get();
mediaDeps.audio_encoder_factory = webrtc::CreateAudioEncoderFactory<webrtc::AudioEncoderOpus>();
mediaDeps.audio_decoder_factory = webrtc::CreateAudioDecoderFactory<webrtc::AudioDecoderOpus>();
mediaDeps.video_encoder_factory = PlatformInterface::SharedInstance()->makeVideoEncoderFactory(_platformContext);
mediaDeps.video_decoder_factory = PlatformInterface::SharedInstance()->makeVideoDecoderFactory(_platformContext);
_myVideoFormats = ComposeSupportedFormats(
mediaDeps.video_encoder_factory->GetSupportedFormats(),
mediaDeps.video_decoder_factory->GetSupportedFormats(),
preferredCodecs,
_platformContext);
webrtc::AudioProcessingBuilder builder;
std::unique_ptr<AudioCapturePostProcessor> audioProcessor = std::make_unique<AudioCapturePostProcessor>([this](float level) {
this->_thread->PostTask([this, level](){
auto strong = this;
strong->_currentMyAudioLevel = level;
});
}, &_externalAudioSamples, &_externalAudioSamplesMutex);
builder.SetCapturePostProcessing(std::move(audioProcessor));
mediaDeps.audio_processing = builder.Create();
StaticThreads::getWorkerThread()->BlockingCall([&] {
_audioDeviceModule = this->createAudioDeviceModule();
/*if (!_audioDeviceModule) {
return;
}*/
mediaDeps.adm = _audioDeviceModule;
_mediaEngine = cricket::CreateMediaEngine(std::move(mediaDeps));
_mediaEngine->Init();
});
StaticThreads::getWorkerThread()->BlockingCall([&] {
/*setAudioInputDevice(devicesConfig.audioInputId);
setAudioOutputDevice(devicesConfig.audioOutputId);
setInputVolume(devicesConfig.inputVolume);
setOutputVolume(devicesConfig.outputVolume);*/
webrtc::Call::Config callConfig(_eventLog.get());
callConfig.task_queue_factory = _taskQueueFactory.get();
callConfig.trials = &fieldTrialsBasedConfig;
callConfig.audio_state = _mediaEngine->voice().GetAudioState();
_call.reset(webrtc::Call::Create(callConfig));
cricket::AudioOptions audioOptions;
audioOptions.echo_cancellation = true;
audioOptions.noise_suppression = true;
audioOptions.audio_jitter_buffer_fast_accelerate = true;
std::vector<std::string> streamIds;
streamIds.push_back("1");
_audioChannel.reset(_mediaEngine->voice().CreateMediaChannel(_call.get(), cricket::MediaConfig(), audioOptions, webrtc::CryptoOptions::NoGcm()));
_videoChannel.reset(_mediaEngine->video().CreateMediaChannel(_call.get(), cricket::MediaConfig(), cricket::VideoOptions(), webrtc::CryptoOptions::NoGcm(), _videoBitrateAllocatorFactory.get()));
const uint32_t opusClockrate = 48000;
const uint16_t opusSdpPayload = 111;
const char *opusSdpName = "opus";
const uint8_t opusSdpChannels = 2;
const uint32_t opusSdpBitrate = 0;
const uint8_t opusMinBitrateKbps = 6;
const uint8_t opusMaxBitrateKbps = 32;
const uint8_t opusStartBitrateKbps = 8;
const uint8_t opusPTimeMs = 120;
cricket::AudioCodec opusCodec(opusSdpPayload, opusSdpName, opusClockrate, opusSdpBitrate, opusSdpChannels);
opusCodec.AddFeedbackParam(cricket::FeedbackParam(cricket::kRtcpFbParamTransportCc));
opusCodec.SetParam(cricket::kCodecParamMinBitrate, opusMinBitrateKbps);
opusCodec.SetParam(cricket::kCodecParamStartBitrate, opusStartBitrateKbps);
opusCodec.SetParam(cricket::kCodecParamMaxBitrate, opusMaxBitrateKbps);
opusCodec.SetParam(cricket::kCodecParamUseInbandFec, 1);
opusCodec.SetParam(cricket::kCodecParamPTime, opusPTimeMs);
cricket::AudioSendParameters audioSendPrameters;
audioSendPrameters.codecs.push_back(opusCodec);
audioSendPrameters.extensions.emplace_back(webrtc::RtpExtension::kTransportSequenceNumberUri, 1);
#if WEBRTC_IOS
audioSendPrameters.options.echo_cancellation = false;
audioSendPrameters.options.auto_gain_control = false;
#else
audioSendPrameters.options.echo_cancellation = true;
audioSendPrameters.options.auto_gain_control = true;
#endif
//audioSendPrameters.options.experimental_ns = false;
audioSendPrameters.options.noise_suppression = true;
//audioSendPrameters.options.highpass_filter = false;
//audioSendPrameters.options.typing_detection = false;
//audioSendPrameters.max_bandwidth_bps = 16000;
audioSendPrameters.rtcp.reduced_size = true;
audioSendPrameters.rtcp.remote_estimate = true;
_audioChannel->SetSendParameters(audioSendPrameters);
_audioChannel->AddSendStream(cricket::StreamParams::CreateLegacy(_ssrcAudio.outgoing));
_audioChannel->SetInterface(_audioNetworkInterface.get());
cricket::AudioRecvParameters audioRecvParameters;
audioRecvParameters.codecs.emplace_back(opusSdpPayload, opusSdpName, opusClockrate, opusSdpBitrate, opusSdpChannels);
audioRecvParameters.extensions.emplace_back(webrtc::RtpExtension::kTransportSequenceNumberUri, 1);
audioRecvParameters.rtcp.reduced_size = true;
audioRecvParameters.rtcp.remote_estimate = true;
_audioChannel->SetRecvParameters(audioRecvParameters);
cricket::StreamParams audioRecvStreamParams = cricket::StreamParams::CreateLegacy(_ssrcAudio.incoming);
audioRecvStreamParams.set_stream_ids(streamIds);
_audioChannel->AddRecvStream(audioRecvStreamParams);
_audioChannel->SetPlayout(true);
_videoChannel->SetInterface(_videoNetworkInterface.get());
});
adjustBitratePreferences(true);
}
rtc::scoped_refptr<webrtc::AudioDeviceModule> MediaManager::createAudioDeviceModule() {
const auto create = [&](webrtc::AudioDeviceModule::AudioLayer layer) {
#ifdef WEBRTC_IOS
return rtc::make_ref_counted<webrtc::tgcalls_ios_adm::AudioDeviceModuleIOS>(false, false, 1);
#else
return webrtc::AudioDeviceModule::Create(
layer,
_taskQueueFactory.get());
#endif
};
const auto check = [&](const rtc::scoped_refptr<webrtc::AudioDeviceModule> &result) {
return (result && result->Init() == 0) ? result : nullptr;
};
if (_createAudioDeviceModule) {
if (const auto result = check(_createAudioDeviceModule(_taskQueueFactory.get()))) {
return result;
}
}
#ifdef ANDROID
return check(create(webrtc::AudioDeviceModule::kAndroidMergedScreenAudio));
#else
return check(create(webrtc::AudioDeviceModule::kPlatformDefaultAudio));
#endif
}
void MediaManager::start() {
const auto weak = std::weak_ptr<MediaManager>(shared_from_this());
// Here we hope that thread outlives the sink
rtc::Thread *thread = _thread;
std::unique_ptr<AudioTrackSinkInterfaceImpl> incomingSink(new AudioTrackSinkInterfaceImpl([weak, thread](float level) {
thread->PostTask([weak, level] {
if (const auto strong = weak.lock()) {
strong->_currentAudioLevel = level;
}
});
}));
StaticThreads::getWorkerThread()->BlockingCall([&] {
_audioChannel->SetRawAudioSink(_ssrcAudio.incoming, std::move(incomingSink));
});
_sendSignalingMessage({ _myVideoFormats });
if (_videoCapture != nullptr) {
setSendVideo(_videoCapture);
}
beginStatsTimer(3000);
if (_audioLevelUpdated != nullptr) {
beginLevelsTimer(100);
}
}
MediaManager::~MediaManager() {
assert(_thread->IsCurrent());
RTC_LOG(LS_INFO) << "MediaManager::~MediaManager()";
StaticThreads::getWorkerThread()->BlockingCall([&] {
_call->SignalChannelNetworkState(webrtc::MediaType::AUDIO, webrtc::kNetworkDown);
_call->SignalChannelNetworkState(webrtc::MediaType::VIDEO, webrtc::kNetworkDown);
_audioChannel->OnReadyToSend(false);
_audioChannel->SetSend(false);
_audioChannel->SetAudioSend(_ssrcAudio.outgoing, false, nullptr, &_audioSource);
_audioChannel->SetPlayout(false);
_audioChannel->RemoveRecvStream(_ssrcAudio.incoming);
_audioChannel->RemoveSendStream(_ssrcAudio.outgoing);
_audioChannel->SetInterface(nullptr);
_audioChannel.reset();
});
setSendVideo(nullptr);
if (computeIsReceivingVideo()) {
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->RemoveRecvStream(_ssrcVideo.incoming);
if (_enableFlexfec) {
_videoChannel->RemoveRecvStream(_ssrcVideo.fecIncoming);
}
});
}
if (_didConfigureVideo) {
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->OnReadyToSend(false);
_videoChannel->SetSend(false);
if (_enableFlexfec) {
_videoChannel->RemoveSendStream(_ssrcVideo.outgoing);
_videoChannel->RemoveSendStream(_ssrcVideo.fecOutgoing);
} else {
_videoChannel->RemoveSendStream(_ssrcVideo.outgoing);
}
});
}
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->SetInterface(nullptr);
_videoChannel.reset();
_audioDeviceModule = nullptr;
_call.reset();
_mediaEngine.reset();
});
}
void MediaManager::setIsConnected(bool isConnected) {
if (_isConnected == isConnected) {
return;
}
bool isFirstConnection = false;
if (!_isConnected && isConnected) {
_didConnectOnce = true;
isFirstConnection = true;
}
_isConnected = isConnected;
StaticThreads::getWorkerThread()->BlockingCall([&] {
if (_isConnected) {
_call->SignalChannelNetworkState(webrtc::MediaType::AUDIO, webrtc::kNetworkUp);
_call->SignalChannelNetworkState(webrtc::MediaType::VIDEO, webrtc::kNetworkUp);
} else {
_call->SignalChannelNetworkState(webrtc::MediaType::AUDIO, webrtc::kNetworkDown);
_call->SignalChannelNetworkState(webrtc::MediaType::VIDEO, webrtc::kNetworkDown);
}
if (_audioChannel) {
_audioChannel->OnReadyToSend(_isConnected);
_audioChannel->SetSend(_isConnected);
_audioChannel->SetAudioSend(_ssrcAudio.outgoing, _isConnected && (_outgoingAudioState == AudioState::Active), nullptr, &_audioSource);
}
if (computeIsSendingVideo() && _videoChannel) {
_videoChannel->OnReadyToSend(_isConnected);
_videoChannel->SetSend(_isConnected);
}
});
if (isFirstConnection) {
sendVideoParametersMessage();
sendOutgoingMediaStateMessage();
}
}
void MediaManager::sendVideoParametersMessage() {
const auto aspectRatioValue = uint32_t(_localPreferredVideoAspectRatio * 1000.0);
_sendTransportMessage({ VideoParametersMessage{ aspectRatioValue } });
}
void MediaManager::sendOutgoingMediaStateMessage() {
_sendTransportMessage({ RemoteMediaStateMessage{ _outgoingAudioState, _outgoingVideoState } });
}
void MediaManager::beginStatsTimer(int timeoutMs) {
const auto weak = std::weak_ptr<MediaManager>(shared_from_this());
_thread->PostDelayedTask([weak]() {
auto strong = weak.lock();
if (!strong) {
return;
}
strong->collectStats();
}, webrtc::TimeDelta::Millis(timeoutMs));
}
void MediaManager::beginLevelsTimer(int timeoutMs) {
const auto weak = std::weak_ptr<MediaManager>(shared_from_this());
_thread->PostDelayedTask([weak]() {
auto strong = weak.lock();
if (!strong) {
return;
}
strong->_audioLevelUpdated(strong->_currentMyAudioLevel, strong->_currentAudioLevel);
strong->beginLevelsTimer(100);
}, webrtc::TimeDelta::Millis(timeoutMs));
}
void MediaManager::collectStats() {
webrtc::Call::Stats stats;
StaticThreads::getWorkerThread()->BlockingCall([&] {
stats = _call->GetStats();
});
float bitrateNorm = 16.0f;
switch (_outgoingVideoState) {
case VideoState::Active:
bitrateNorm = 600.0f;
break;
default:
break;
}
float sendBitrateKbps = ((float)stats.send_bandwidth_bps / 1000.0f);
RTC_LOG(LS_INFO) << "MediaManager sendBitrateKbps=" << (stats.send_bandwidth_bps / 1000);
float signalBarsNorm = 4.0f;
float adjustedQuality = sendBitrateKbps / bitrateNorm;
adjustedQuality = fmaxf(0.0f, adjustedQuality);
adjustedQuality = fminf(1.0f, adjustedQuality);
if (_signalBarsUpdated) {
_signalBarsUpdated((int)(adjustedQuality * signalBarsNorm));
}
_bitrateRecords.push_back(CallStatsBitrateRecord { (int32_t)(rtc::TimeMillis() / 1000), stats.send_bandwidth_bps / 1000 });
beginStatsTimer(2000);
}
void MediaManager::notifyPacketSent(const rtc::SentPacket &sentPacket) {
_call->OnSentPacket(sentPacket);
}
void MediaManager::setPeerVideoFormats(VideoFormatsMessage &&peerFormats) {
if (!_videoCodecs.empty()) {
return;
}
bool wasReceivingVideo = computeIsReceivingVideo();
assert(!_videoCodecOut.has_value());
auto formats = ComputeCommonFormats(
_myVideoFormats,
std::move(peerFormats));
auto codecs = AssignPayloadTypesAndDefaultCodecs(std::move(formats));
if (codecs.myEncoderIndex >= 0) {
assert(codecs.myEncoderIndex < codecs.list.size());
_videoCodecOut = codecs.list[codecs.myEncoderIndex];
}
_videoCodecs = std::move(codecs.list);
if (_videoCodecOut.has_value()) {
checkIsSendingVideoChanged(false);
}
if (_videoCodecs.size() != 0) {
checkIsReceivingVideoChanged(wasReceivingVideo);
}
}
bool MediaManager::videoCodecsNegotiated() const {
return !_videoCodecs.empty();
}
bool MediaManager::computeIsSendingVideo() const {
return _videoCapture != nullptr && _videoCodecOut.has_value();
}
bool MediaManager::computeIsReceivingVideo() const {
return _videoCodecs.size() != 0;
}
void MediaManager::setSendVideo(std::shared_ptr<VideoCaptureInterface> videoCapture) {
const auto wasSending = computeIsSendingVideo();
const auto wasReceiving = computeIsReceivingVideo();
if (_videoCapture) {
_videoCaptureGuard = nullptr;
GetVideoCaptureAssumingSameThread(_videoCapture.get())->setStateUpdated(nullptr);
}
_videoCapture = videoCapture;
if (_videoCapture) {
_videoCapture->setPreferredAspectRatio(_preferredAspectRatio);
const auto thread = _thread;
const auto object = GetVideoCaptureAssumingSameThread(_videoCapture.get());
_isScreenCapture = object->isScreenCapture();
_videoCaptureGuard = std::make_shared<bool>(true);
const auto guard = std::weak_ptr<bool>{ _videoCaptureGuard };
object->setStateUpdated([=](VideoState state) {
thread->PostTask([=] {
// Checking this special guard instead of weak_ptr(this)
// ensures that we won't call setOutgoingVideoState after
// the _videoCapture was already changed and the old
// stateUpdated was already null-ed, but the event
// at that time was already posted.
if (guard.lock()) {
setOutgoingVideoState(state);
}
});
});
setOutgoingVideoState(VideoState::Active);
} else {
_isScreenCapture = false;
setOutgoingVideoState(VideoState::Inactive);
}
StaticThreads::getWorkerThread()->BlockingCall([&] {
if (_enableFlexfec) {
_videoChannel->RemoveSendStream(_ssrcVideo.outgoing);
_videoChannel->RemoveSendStream(_ssrcVideo.fecOutgoing);
} else {
_videoChannel->RemoveSendStream(_ssrcVideo.outgoing);
}
if (videoCapture) {
if (_enableFlexfec) {
cricket::StreamParams videoSendStreamParams;
cricket::SsrcGroup videoSendSsrcGroup(cricket::kFecFrSsrcGroupSemantics, {_ssrcVideo.outgoing, _ssrcVideo.fecOutgoing});
videoSendStreamParams.ssrcs = {_ssrcVideo.outgoing};
videoSendStreamParams.ssrc_groups.push_back(videoSendSsrcGroup);
videoSendStreamParams.cname = "cname";
_videoChannel->AddSendStream(videoSendStreamParams);
} else {
_videoChannel->AddSendStream(cricket::StreamParams::CreateLegacy(_ssrcVideo.outgoing));
}
}
});
checkIsSendingVideoChanged(wasSending);
checkIsReceivingVideoChanged(wasReceiving);
}
void MediaManager::sendVideoDeviceUpdated() {
if (!computeIsSendingVideo()) {
return;
}
const auto wasScreenCapture = _isScreenCapture;
const auto object = GetVideoCaptureAssumingSameThread(_videoCapture.get());
_isScreenCapture = object->isScreenCapture();
if (_isScreenCapture != wasScreenCapture) {
adjustBitratePreferences(true);
}
}
void MediaManager::setRequestedVideoAspect(float aspect) {
if (_localPreferredVideoAspectRatio != aspect) {
_localPreferredVideoAspectRatio = aspect;
if (_didConnectOnce) {
sendVideoParametersMessage();
}
}
}
void MediaManager::configureSendingVideoIfNeeded() {
if (_didConfigureVideo) {
return;
}
if (!_videoCodecOut.has_value()) {
return;
}
_didConfigureVideo = true;
auto codec = *_videoCodecOut;
codec.SetParam(cricket::kCodecParamMinBitrate, 64);
codec.SetParam(cricket::kCodecParamStartBitrate, 400);
codec.SetParam(cricket::kCodecParamMaxBitrate, _enableHighBitrateVideo ? 2000 : 800);
cricket::VideoSendParameters videoSendParameters;
videoSendParameters.codecs.push_back(codec);
if (_enableFlexfec) {
for (auto &c : _videoCodecs) {
if (c.name == cricket::kFlexfecCodecName) {
videoSendParameters.codecs.push_back(c);
break;
}
}
}
videoSendParameters.extensions.emplace_back(webrtc::RtpExtension::kTransportSequenceNumberUri, 2);
switch (_protocolVersion) {
case ProtocolVersion::V1:
videoSendParameters.extensions.emplace_back(webrtc::RtpExtension::kVideoRotationUri, 3);
videoSendParameters.extensions.emplace_back(
webrtc::RtpExtension::kTimestampOffsetUri, 4);
break;
default:
break;
}
videoSendParameters.rtcp.remote_estimate = true;
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->SetSendParameters(videoSendParameters);
if (_enableFlexfec) {
cricket::StreamParams videoSendStreamParams;
cricket::SsrcGroup videoSendSsrcGroup(cricket::kFecFrSsrcGroupSemantics, {_ssrcVideo.outgoing, _ssrcVideo.fecOutgoing});
videoSendStreamParams.ssrcs = {_ssrcVideo.outgoing};
videoSendStreamParams.ssrc_groups.push_back(videoSendSsrcGroup);
videoSendStreamParams.cname = "cname";
_videoChannel->AddSendStream(videoSendStreamParams);
} else {
_videoChannel->AddSendStream(cricket::StreamParams::CreateLegacy(_ssrcVideo.outgoing));
}
});
adjustBitratePreferences(true);
}
void MediaManager::checkIsSendingVideoChanged(bool wasSending) {
const auto sending = computeIsSendingVideo();
if (sending == wasSending) {
return;
} else if (sending) {
configureSendingVideoIfNeeded();
rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> source = GetVideoCaptureAssumingSameThread(_videoCapture.get())->source();
StaticThreads::getWorkerThread()->BlockingCall([&] {
if (_enableFlexfec) {
_videoChannel->SetVideoSend(_ssrcVideo.outgoing, NULL, source.get());
_videoChannel->SetVideoSend(_ssrcVideo.fecOutgoing, NULL, nullptr);
} else {
_videoChannel->SetVideoSend(_ssrcVideo.outgoing, NULL, source.get());
}
_videoChannel->OnReadyToSend(_isConnected);
_videoChannel->SetSend(_isConnected);
});
} else {
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->SetVideoSend(_ssrcVideo.outgoing, NULL, nullptr);
_videoChannel->SetVideoSend(_ssrcVideo.fecOutgoing, NULL, nullptr);
});
}
adjustBitratePreferences(true);
}
int MediaManager::getMaxVideoBitrate() const {
return (_enableHighBitrateVideo && _isLowCostNetwork) ? 2000000 : 800000;
}
int MediaManager::getMaxAudioBitrate() const {
if (_isDataSavingActive) {
return 16000;
} else {
return 32000;
}
}
void MediaManager::adjustBitratePreferences(bool resetStartBitrate) {
if (computeIsSendingVideo()) {
webrtc::BitrateConstraints preferences;
if (_isScreenCapture) {
preferences.min_bitrate_bps = 700000;
if (resetStartBitrate) {
preferences.start_bitrate_bps = 700000;
}
} else {
preferences.min_bitrate_bps = 64000;
if (resetStartBitrate) {
preferences.start_bitrate_bps = 400000;
}
}
preferences.max_bitrate_bps = getMaxVideoBitrate();
_call->GetTransportControllerSend()->SetSdpBitrateParameters(preferences);
} else {
webrtc::BitrateConstraints preferences;
if (_didConfigureVideo) {
// After we have configured outgoing video, RTCP stops working for outgoing audio
// TODO: investigate
preferences.min_bitrate_bps = 16000;
if (resetStartBitrate) {
preferences.start_bitrate_bps = 16000;
}
preferences.max_bitrate_bps = 32000;
} else {
preferences.min_bitrate_bps = 8000;
if (resetStartBitrate) {
preferences.start_bitrate_bps = 16000;
}
preferences.max_bitrate_bps = getMaxAudioBitrate();
}
_call->GetTransportControllerSend()->SetSdpBitrateParameters(preferences);
}
}
void MediaManager::checkIsReceivingVideoChanged(bool wasReceiving) {
const auto receiving = computeIsReceivingVideo();
if (receiving == wasReceiving) {
return;
} else {
cricket::VideoRecvParameters videoRecvParameters;
const auto codecs = {
cricket::kFlexfecCodecName,
cricket::kH264CodecName,
#ifndef WEBRTC_DISABLE_H265
cricket::kH265CodecName,
#endif
cricket::kVp8CodecName,
cricket::kVp9CodecName,
cricket::kAv1CodecName,
};
for (const auto &c : _videoCodecs) {
for (const auto known : codecs) {
if (c.name == known) {
videoRecvParameters.codecs.push_back(c);
break;
}
}
}
videoRecvParameters.extensions.emplace_back(webrtc::RtpExtension::kTransportSequenceNumberUri, 2);
switch (_protocolVersion) {
case ProtocolVersion::V1:
videoRecvParameters.extensions.emplace_back(webrtc::RtpExtension::kVideoRotationUri, 3);
videoRecvParameters.extensions.emplace_back(
webrtc::RtpExtension::kTimestampOffsetUri, 4);
break;
default:
break;
}
videoRecvParameters.rtcp.reduced_size = true;
videoRecvParameters.rtcp.remote_estimate = true;
cricket::StreamParams videoRecvStreamParams;
cricket::SsrcGroup videoRecvSsrcGroup(cricket::kFecFrSsrcGroupSemantics, {_ssrcVideo.incoming, _ssrcVideo.fecIncoming});
videoRecvStreamParams.ssrcs = {_ssrcVideo.incoming};
videoRecvStreamParams.ssrc_groups.push_back(videoRecvSsrcGroup);
videoRecvStreamParams.cname = "cname";
std::vector<std::string> streamIds;
streamIds.push_back("1");
videoRecvStreamParams.set_stream_ids(streamIds);
_readyToReceiveVideo = true;
StaticThreads::getWorkerThread()->BlockingCall([&] {
_videoChannel->SetRecvParameters(videoRecvParameters);
_videoChannel->AddRecvStream(videoRecvStreamParams);
_videoChannel->SetSink(_ssrcVideo.incoming, _incomingVideoSinkProxy.get());
});
}
}
void MediaManager::setMuteOutgoingAudio(bool mute) {
setOutgoingAudioState(mute ? AudioState::Muted : AudioState::Active);
StaticThreads::getWorkerThread()->BlockingCall([&] {
_audioChannel->SetAudioSend(_ssrcAudio.outgoing, _isConnected && (_outgoingAudioState == AudioState::Active), nullptr, &_audioSource);
});
}
void MediaManager::setOutgoingAudioState(AudioState state) {
if (_outgoingAudioState == state) {
return;
}
_outgoingAudioState = state;
sendOutgoingMediaStateMessage();
}
void MediaManager::setOutgoingVideoState(VideoState state) {
if (_outgoingVideoState == state) {
return;
}
_outgoingVideoState = state;
sendOutgoingMediaStateMessage();
}
void MediaManager::setIncomingVideoOutput(std::weak_ptr<rtc::VideoSinkInterface<webrtc::VideoFrame>> sink) {
_incomingVideoSinkProxy->setSink(sink);
}
void MediaManager::receiveMessage(DecryptedMessage &&message) {
const auto data = &message.message.data;
if (const auto formats = absl::get_if<VideoFormatsMessage>(data)) {
setPeerVideoFormats(std::move(*formats));
} else if (const auto audio = absl::get_if<AudioDataMessage>(data)) {
if (webrtc::IsRtcpPacket(audio->data)) {
RTC_LOG(LS_VERBOSE) << "Deliver audio RTCP";
}
StaticThreads::getWorkerThread()->BlockingCall([&] {
if (webrtc::IsRtcpPacket(audio->data)) {
_call->Receiver()->DeliverPacket(webrtc::MediaType::ANY, audio->data, -1);
} else {
_call->Receiver()->DeliverPacket(webrtc::MediaType::AUDIO, audio->data, -1);
}
});
} else if (const auto video = absl::get_if<VideoDataMessage>(data)) {
if (_videoChannel) {
if (_readyToReceiveVideo) {
StaticThreads::getWorkerThread()->BlockingCall([&] {
if (webrtc::IsRtcpPacket(video->data)) {
_call->Receiver()->DeliverPacket(webrtc::MediaType::ANY, video->data, -1);
} else {
_call->Receiver()->DeliverPacket(webrtc::MediaType::VIDEO, video->data, -1);
}
});
} else {
// maybe we need to queue packets for some time?
}
}
} else if (const auto videoParameters = absl::get_if<VideoParametersMessage>(data)) {
float value = ((float)videoParameters->aspectRatio) / 1000.0;
_preferredAspectRatio = value;
if (_videoCapture) {
_videoCapture->setPreferredAspectRatio(value);
}
}
}
void MediaManager::remoteVideoStateUpdated(VideoState videoState) {
switch (videoState) {
case VideoState::Active:
case VideoState::Paused:
configureSendingVideoIfNeeded();
break;
default:
break;
}
}
void MediaManager::setNetworkParameters(bool isLowCost, bool isDataSavingActive) {
if (_isLowCostNetwork != isLowCost || _isDataSavingActive != isDataSavingActive) {
_isLowCostNetwork = isLowCost;
_isDataSavingActive = isDataSavingActive;
RTC_LOG(LS_INFO) << "MediaManager isLowCostNetwork: " << (isLowCost ? 1 : 0) << ", isDataSavingActive: " << (isDataSavingActive ? 1 : 0);
adjustBitratePreferences(false);
}
}
void MediaManager::fillCallStats(CallStats &callStats) {
if (_videoCodecOut.has_value()) {
callStats.outgoingCodec = _videoCodecOut->name;
}
callStats.bitrateRecords = _bitrateRecords;
}
void MediaManager::setAudioInputDevice(std::string id) {
#if defined(WEBRTC_IOS)
#else
SetAudioInputDeviceById(_audioDeviceModule.get(), id);
#endif
}
void MediaManager::setAudioOutputDevice(std::string id) {
#if defined(WEBRTC_IOS)
#else
SetAudioOutputDeviceById(_audioDeviceModule.get(), id);
#endif
}
void MediaManager::setInputVolume(float level) {
// This is not what we want, it changes OS volume on macOS.
// auto min = uint32_t();
// auto max = uint32_t();
// if (const auto result = _audioDeviceModule->MinMicrophoneVolume(&min)) {
// RTC_LOG(LS_ERROR) << "setInputVolume(" << level << "): MinMicrophoneVolume failed: " << result << ".";
// return;
// } else if (const auto result = _audioDeviceModule->MaxMicrophoneVolume(&max)) {
// RTC_LOG(LS_ERROR) << "setInputVolume(" << level << "): MaxMicrophoneVolume failed: " << result << ".";
// return;
// }
// const auto volume = min + uint32_t(std::round((max - min) * std::min(std::max(level, 0.f), 1.f)));
// if (const auto result = _audioDeviceModule->SetMicrophoneVolume(volume)) {
// RTC_LOG(LS_ERROR) << "setInputVolume(" << level << "): SetMicrophoneVolume(" << volume << ") failed: " << result << ".";
// } else {
// RTC_LOG(LS_INFO) << "setInputVolume(" << level << ") volume " << volume << " success.";
// }
}
void MediaManager::setOutputVolume(float level) {
// This is not what we want, it changes OS volume on macOS.
// auto min = uint32_t();
// auto max = uint32_t();
// if (const auto result = _audioDeviceModule->MinSpeakerVolume(&min)) {
// RTC_LOG(LS_ERROR) << "setOutputVolume(" << level << "): MinSpeakerVolume failed: " << result << ".";
// return;
// } else if (const auto result = _audioDeviceModule->MaxSpeakerVolume(&max)) {
// RTC_LOG(LS_ERROR) << "setOutputVolume(" << level << "): MaxSpeakerVolume failed: " << result << ".";
// return;
// }
// const auto volume = min + uint32_t(std::round((max - min) * std::min(std::max(level, 0.f), 1.f)));
// if (const auto result = _audioDeviceModule->SetSpeakerVolume(volume)) {
// RTC_LOG(LS_ERROR) << "setOutputVolume(" << level << "): SetSpeakerVolume(" << volume << ") failed: " << result << ".";
// } else {
// RTC_LOG(LS_INFO) << "setOutputVolume(" << level << ") volume " << volume << " success.";
// }
}
void MediaManager::addExternalAudioSamples(std::vector<uint8_t> &&samples) {
if (samples.size() % 2 != 0) {
return;
}
_externalAudioSamplesMutex.Lock();
size_t previousSize = _externalAudioSamples.size();
_externalAudioSamples.resize(_externalAudioSamples.size() + samples.size() / 2);
webrtc::S16ToFloatS16((const int16_t *)samples.data(), samples.size() / 2, _externalAudioSamples.data() + previousSize);
if (_externalAudioSamples.size() > 2 * 48000) {
_externalAudioSamples.erase(_externalAudioSamples.begin(), _externalAudioSamples.begin() + (_externalAudioSamples.size() - 2 * 48000));
}
_externalAudioSamplesMutex.Unlock();
}
MediaManager::NetworkInterfaceImpl::NetworkInterfaceImpl(MediaManager *mediaManager, bool isVideo) :
_mediaManager(mediaManager),
_isVideo(isVideo) {
}
bool MediaManager::NetworkInterfaceImpl::SendPacket(rtc::CopyOnWriteBuffer *packet, const rtc::PacketOptions& options) {
return sendTransportMessage(packet, options);
}
bool MediaManager::NetworkInterfaceImpl::SendRtcp(rtc::CopyOnWriteBuffer *packet, const rtc::PacketOptions& options) {
return sendTransportMessage(packet, options);
}
bool MediaManager::NetworkInterfaceImpl::sendTransportMessage(rtc::CopyOnWriteBuffer *packet, const rtc::PacketOptions& options) {
if (_isVideo) {
RTC_LOG(LS_VERBOSE) << "Send video packet";
}
_mediaManager->_sendTransportMessage(_isVideo
? Message{ VideoDataMessage{ *packet } }
: Message{ AudioDataMessage{ *packet } });
rtc::SentPacket sentPacket(options.packet_id, rtc::TimeMillis(), options.info_signaled_after_sent);
_mediaManager->notifyPacketSent(sentPacket);
return true;
}
int MediaManager::NetworkInterfaceImpl::SetOption(cricket::MediaChannel::NetworkInterface::SocketType, rtc::Socket::Option, int) {
return -1;
}
} // namespace tgcalls