From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- dom/media/webrtc/libwebrtcglue/AudioConduit.cpp | 927 ++++++++++ dom/media/webrtc/libwebrtcglue/AudioConduit.h | 315 ++++ dom/media/webrtc/libwebrtcglue/CallWorkerThread.h | 116 ++ dom/media/webrtc/libwebrtcglue/CodecConfig.h | 237 +++ dom/media/webrtc/libwebrtcglue/GmpVideoCodec.cpp | 22 + dom/media/webrtc/libwebrtcglue/GmpVideoCodec.h | 27 + .../webrtc/libwebrtcglue/MediaConduitControl.h | 68 + .../webrtc/libwebrtcglue/MediaConduitErrors.h | 46 + .../webrtc/libwebrtcglue/MediaConduitInterface.cpp | 151 ++ .../webrtc/libwebrtcglue/MediaConduitInterface.h | 493 ++++++ dom/media/webrtc/libwebrtcglue/MediaDataCodec.cpp | 70 + dom/media/webrtc/libwebrtcglue/MediaDataCodec.h | 32 + dom/media/webrtc/libwebrtcglue/RtpRtcpConfig.h | 24 + dom/media/webrtc/libwebrtcglue/RunningStat.h | 48 + dom/media/webrtc/libwebrtcglue/SystemTime.cpp | 67 + dom/media/webrtc/libwebrtcglue/SystemTime.h | 47 + dom/media/webrtc/libwebrtcglue/TaskQueueWrapper.h | 181 ++ dom/media/webrtc/libwebrtcglue/VideoConduit.cpp | 1849 ++++++++++++++++++++ dom/media/webrtc/libwebrtcglue/VideoConduit.h | 505 ++++++ .../webrtc/libwebrtcglue/VideoStreamFactory.cpp | 387 ++++ .../webrtc/libwebrtcglue/VideoStreamFactory.h | 132 ++ dom/media/webrtc/libwebrtcglue/VideoTypes.h | 60 + .../webrtc/libwebrtcglue/WebrtcCallWrapper.cpp | 105 ++ dom/media/webrtc/libwebrtcglue/WebrtcCallWrapper.h | 114 ++ .../webrtc/libwebrtcglue/WebrtcGmpVideoCodec.cpp | 1028 +++++++++++ .../webrtc/libwebrtcglue/WebrtcGmpVideoCodec.h | 505 ++++++ dom/media/webrtc/libwebrtcglue/WebrtcImageBuffer.h | 53 + .../libwebrtcglue/WebrtcMediaDataDecoderCodec.cpp | 201 +++ .../libwebrtcglue/WebrtcMediaDataDecoderCodec.h | 70 + .../libwebrtcglue/WebrtcMediaDataEncoderCodec.cpp | 499 ++++++ .../libwebrtcglue/WebrtcMediaDataEncoderCodec.h | 76 + .../libwebrtcglue/WebrtcVideoCodecFactory.cpp | 139 ++ .../webrtc/libwebrtcglue/WebrtcVideoCodecFactory.h | 124 ++ dom/media/webrtc/libwebrtcglue/moz.build | 35 + 34 files changed, 8753 insertions(+) create mode 100644 dom/media/webrtc/libwebrtcglue/AudioConduit.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/AudioConduit.h create mode 100644 dom/media/webrtc/libwebrtcglue/CallWorkerThread.h create mode 100644 dom/media/webrtc/libwebrtcglue/CodecConfig.h create mode 100644 dom/media/webrtc/libwebrtcglue/GmpVideoCodec.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/GmpVideoCodec.h create mode 100644 dom/media/webrtc/libwebrtcglue/MediaConduitControl.h create mode 100644 dom/media/webrtc/libwebrtcglue/MediaConduitErrors.h create mode 100644 dom/media/webrtc/libwebrtcglue/MediaConduitInterface.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/MediaConduitInterface.h create mode 100644 dom/media/webrtc/libwebrtcglue/MediaDataCodec.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/MediaDataCodec.h create mode 100644 dom/media/webrtc/libwebrtcglue/RtpRtcpConfig.h create mode 100644 dom/media/webrtc/libwebrtcglue/RunningStat.h create mode 100644 dom/media/webrtc/libwebrtcglue/SystemTime.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/SystemTime.h create mode 100644 dom/media/webrtc/libwebrtcglue/TaskQueueWrapper.h create mode 100644 dom/media/webrtc/libwebrtcglue/VideoConduit.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/VideoConduit.h create mode 100644 dom/media/webrtc/libwebrtcglue/VideoStreamFactory.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/VideoStreamFactory.h create mode 100644 dom/media/webrtc/libwebrtcglue/VideoTypes.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcCallWrapper.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcCallWrapper.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcGmpVideoCodec.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcGmpVideoCodec.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcImageBuffer.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcMediaDataDecoderCodec.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcMediaDataDecoderCodec.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcMediaDataEncoderCodec.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcMediaDataEncoderCodec.h create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcVideoCodecFactory.cpp create mode 100644 dom/media/webrtc/libwebrtcglue/WebrtcVideoCodecFactory.h create mode 100644 dom/media/webrtc/libwebrtcglue/moz.build (limited to 'dom/media/webrtc/libwebrtcglue') diff --git a/dom/media/webrtc/libwebrtcglue/AudioConduit.cpp b/dom/media/webrtc/libwebrtcglue/AudioConduit.cpp new file mode 100644 index 0000000000..3101523ab7 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/AudioConduit.cpp @@ -0,0 +1,927 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "AudioConduit.h" + +#include "common/browser_logging/CSFLog.h" +#include "MediaConduitControl.h" +#include "mozilla/media/MediaUtils.h" +#include "mozilla/Telemetry.h" +#include "transport/runnable_utils.h" +#include "transport/SrtpFlow.h" // For SRTP_MAX_EXPANSION +#include "WebrtcCallWrapper.h" + +// libwebrtc includes +#include "api/audio_codecs/builtin_audio_encoder_factory.h" +#include "audio/audio_receive_stream.h" +#include "media/base/media_constants.h" + +// for ntohs +#ifdef HAVE_NETINET_IN_H +# include +#elif defined XP_WIN +# include +#endif + +#ifdef MOZ_WIDGET_ANDROID +# include "AndroidBridge.h" +#endif + +namespace mozilla { + +namespace { + +static const char* acLogTag = "WebrtcAudioSessionConduit"; +#ifdef LOGTAG +# undef LOGTAG +#endif +#define LOGTAG acLogTag + +using namespace cricket; +using LocalDirection = MediaSessionConduitLocalDirection; + +const char kCodecParamCbr[] = "cbr"; + +} // namespace + +/** + * Factory Method for AudioConduit + */ +RefPtr AudioSessionConduit::Create( + RefPtr aCall, + nsCOMPtr aStsThread) { + CSFLogDebug(LOGTAG, "%s ", __FUNCTION__); + MOZ_ASSERT(NS_IsMainThread()); + + return MakeRefPtr(std::move(aCall), + std::move(aStsThread)); +} + +#define INIT_MIRROR(name, val) \ + name(aCallThread, val, "WebrtcAudioConduit::Control::" #name " (Mirror)") +WebrtcAudioConduit::Control::Control(const RefPtr& aCallThread) + : INIT_MIRROR(mReceiving, false), + INIT_MIRROR(mTransmitting, false), + INIT_MIRROR(mLocalSsrcs, Ssrcs()), + INIT_MIRROR(mLocalCname, std::string()), + INIT_MIRROR(mMid, std::string()), + INIT_MIRROR(mRemoteSsrc, 0), + INIT_MIRROR(mSyncGroup, std::string()), + INIT_MIRROR(mLocalRecvRtpExtensions, RtpExtList()), + INIT_MIRROR(mLocalSendRtpExtensions, RtpExtList()), + INIT_MIRROR(mSendCodec, Nothing()), + INIT_MIRROR(mRecvCodecs, std::vector()) {} +#undef INIT_MIRROR + +RefPtr WebrtcAudioConduit::Shutdown() { + MOZ_ASSERT(NS_IsMainThread()); + + return InvokeAsync(mCallThread, "WebrtcAudioConduit::Shutdown (main thread)", + [this, self = RefPtr(this)] { + mControl.mReceiving.DisconnectIfConnected(); + mControl.mTransmitting.DisconnectIfConnected(); + mControl.mLocalSsrcs.DisconnectIfConnected(); + mControl.mLocalCname.DisconnectIfConnected(); + mControl.mMid.DisconnectIfConnected(); + mControl.mRemoteSsrc.DisconnectIfConnected(); + mControl.mSyncGroup.DisconnectIfConnected(); + mControl.mLocalRecvRtpExtensions.DisconnectIfConnected(); + mControl.mLocalSendRtpExtensions.DisconnectIfConnected(); + mControl.mSendCodec.DisconnectIfConnected(); + mControl.mRecvCodecs.DisconnectIfConnected(); + mControl.mOnDtmfEventListener.DisconnectIfExists(); + mWatchManager.Shutdown(); + + { + AutoWriteLock lock(mLock); + DeleteSendStream(); + DeleteRecvStream(); + } + + return GenericPromise::CreateAndResolve( + true, "WebrtcAudioConduit::Shutdown (call thread)"); + }); +} + +WebrtcAudioConduit::WebrtcAudioConduit( + RefPtr aCall, nsCOMPtr aStsThread) + : mCall(std::move(aCall)), + mSendTransport(this), + mRecvTransport(this), + mRecvStreamConfig(), + mRecvStream(nullptr), + mSendStreamConfig(&mSendTransport), + mSendStream(nullptr), + mSendStreamRunning(false), + mRecvStreamRunning(false), + mDtmfEnabled(false), + mLock("WebrtcAudioConduit::mLock"), + mCallThread(std::move(mCall->mCallThread)), + mStsThread(std::move(aStsThread)), + mControl(mCall->mCallThread), + mWatchManager(this, mCall->mCallThread) { + mRecvStreamConfig.rtcp_send_transport = &mRecvTransport; + mRecvStreamConfig.rtp.rtcp_event_observer = this; +} + +/** + * Destruction defines for our super-classes + */ +WebrtcAudioConduit::~WebrtcAudioConduit() { + CSFLogDebug(LOGTAG, "%s ", __FUNCTION__); + MOZ_ASSERT(!mSendStream && !mRecvStream, + "Call DeleteStreams prior to ~WebrtcAudioConduit."); +} + +#define CONNECT(aCanonical, aMirror) \ + do { \ + (aMirror).Connect(aCanonical); \ + mWatchManager.Watch(aMirror, &WebrtcAudioConduit::OnControlConfigChange); \ + } while (0) + +void WebrtcAudioConduit::InitControl(AudioConduitControlInterface* aControl) { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + CONNECT(aControl->CanonicalReceiving(), mControl.mReceiving); + CONNECT(aControl->CanonicalTransmitting(), mControl.mTransmitting); + CONNECT(aControl->CanonicalLocalSsrcs(), mControl.mLocalSsrcs); + CONNECT(aControl->CanonicalLocalCname(), mControl.mLocalCname); + CONNECT(aControl->CanonicalMid(), mControl.mMid); + CONNECT(aControl->CanonicalRemoteSsrc(), mControl.mRemoteSsrc); + CONNECT(aControl->CanonicalSyncGroup(), mControl.mSyncGroup); + CONNECT(aControl->CanonicalLocalRecvRtpExtensions(), + mControl.mLocalRecvRtpExtensions); + CONNECT(aControl->CanonicalLocalSendRtpExtensions(), + mControl.mLocalSendRtpExtensions); + CONNECT(aControl->CanonicalAudioSendCodec(), mControl.mSendCodec); + CONNECT(aControl->CanonicalAudioRecvCodecs(), mControl.mRecvCodecs); + mControl.mOnDtmfEventListener = aControl->OnDtmfEvent().Connect( + mCall->mCallThread, this, &WebrtcAudioConduit::OnDtmfEvent); +} + +#undef CONNECT + +void WebrtcAudioConduit::OnDtmfEvent(const DtmfEvent& aEvent) { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mSendStream); + MOZ_ASSERT(mDtmfEnabled); + mSendStream->SendTelephoneEvent(aEvent.mPayloadType, aEvent.mPayloadFrequency, + aEvent.mEventCode, aEvent.mLengthMs); +} + +void WebrtcAudioConduit::OnControlConfigChange() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + bool recvStreamReconfigureNeeded = false; + bool sendStreamReconfigureNeeded = false; + bool recvStreamRecreationNeeded = false; + bool sendStreamRecreationNeeded = false; + + if (!mControl.mLocalSsrcs.Ref().empty()) { + if (mControl.mLocalSsrcs.Ref()[0] != mSendStreamConfig.rtp.ssrc) { + sendStreamRecreationNeeded = true; + + // For now... + recvStreamRecreationNeeded = true; + } + mRecvStreamConfig.rtp.local_ssrc = mControl.mLocalSsrcs.Ref()[0]; + mSendStreamConfig.rtp.ssrc = mControl.mLocalSsrcs.Ref()[0]; + + // In the future we can do this instead of recreating the recv stream: + // if (mRecvStream) { + // mCall->Call()->OnLocalSsrcUpdated(mRecvStream, + // mControl.mLocalSsrcs.Ref()[0]); + // } + } + + if (mControl.mLocalCname.Ref() != mSendStreamConfig.rtp.c_name) { + mSendStreamConfig.rtp.c_name = mControl.mLocalCname.Ref(); + sendStreamReconfigureNeeded = true; + } + + if (mControl.mMid.Ref() != mSendStreamConfig.rtp.mid) { + mSendStreamConfig.rtp.mid = mControl.mMid.Ref(); + sendStreamReconfigureNeeded = true; + } + + if (mControl.mRemoteSsrc.Ref() != mControl.mConfiguredRemoteSsrc) { + mRecvStreamConfig.rtp.remote_ssrc = mControl.mConfiguredRemoteSsrc = + mControl.mRemoteSsrc.Ref(); + recvStreamRecreationNeeded = true; + } + + if (mControl.mSyncGroup.Ref() != mRecvStreamConfig.sync_group) { + mRecvStreamConfig.sync_group = mControl.mSyncGroup.Ref(); + // For now... + recvStreamRecreationNeeded = true; + // In the future we can do this instead of recreating the recv stream: + // if (mRecvStream) { + // mCall->Call()->OnUpdateSyncGroup(mRecvStream, + // mRecvStreamConfig.sync_group); + // } + } + + if (auto filteredExtensions = FilterExtensions( + LocalDirection::kRecv, mControl.mLocalRecvRtpExtensions); + filteredExtensions != mRecvStreamConfig.rtp.extensions) { + mRecvStreamConfig.rtp.extensions = std::move(filteredExtensions); + // For now... + recvStreamRecreationNeeded = true; + // In the future we can do this instead of recreating the recv stream: + // if (mRecvStream) { + // mRecvStream->SetRtpExtensions(mRecvStreamConfig.rtp.extensions); + //} + } + + if (auto filteredExtensions = FilterExtensions( + LocalDirection::kSend, mControl.mLocalSendRtpExtensions); + filteredExtensions != mSendStreamConfig.rtp.extensions) { + // At the very least, we need a reconfigure. Recreation needed if the + // extmap for any extension has changed, but not for adding/removing + // extensions. + sendStreamReconfigureNeeded = true; + + for (const auto& newExt : filteredExtensions) { + if (sendStreamRecreationNeeded) { + break; + } + for (const auto& oldExt : mSendStreamConfig.rtp.extensions) { + if (newExt.uri == oldExt.uri) { + if (newExt.id != oldExt.id) { + sendStreamRecreationNeeded = true; + } + // We're done handling newExt, one way or another + break; + } + } + } + + mSendStreamConfig.rtp.extensions = std::move(filteredExtensions); + } + + mControl.mSendCodec.Ref().apply([&](const auto& aConfig) { + if (mControl.mConfiguredSendCodec != mControl.mSendCodec.Ref()) { + mControl.mConfiguredSendCodec = mControl.mSendCodec; + if (ValidateCodecConfig(aConfig, true) == kMediaConduitNoError) { + mSendStreamConfig.encoder_factory = + webrtc::CreateBuiltinAudioEncoderFactory(); + + webrtc::AudioSendStream::Config::SendCodecSpec spec( + aConfig.mType, CodecConfigToLibwebrtcFormat(aConfig)); + mSendStreamConfig.send_codec_spec = spec; + + mDtmfEnabled = aConfig.mDtmfEnabled; + sendStreamReconfigureNeeded = true; + } + } + }); + + if (mControl.mConfiguredRecvCodecs != mControl.mRecvCodecs.Ref()) { + mControl.mConfiguredRecvCodecs = mControl.mRecvCodecs; + mRecvStreamConfig.decoder_factory = mCall->mAudioDecoderFactory; + mRecvStreamConfig.decoder_map.clear(); + + for (const auto& codec : mControl.mRecvCodecs.Ref()) { + if (ValidateCodecConfig(codec, false) != kMediaConduitNoError) { + continue; + } + mRecvStreamConfig.decoder_map.emplace( + codec.mType, CodecConfigToLibwebrtcFormat(codec)); + } + + recvStreamReconfigureNeeded = true; + } + + if (!recvStreamReconfigureNeeded && !sendStreamReconfigureNeeded && + !recvStreamRecreationNeeded && !sendStreamRecreationNeeded && + mControl.mReceiving == mRecvStreamRunning && + mControl.mTransmitting == mSendStreamRunning) { + // No changes applied -- no need to lock. + return; + } + + if (recvStreamRecreationNeeded) { + recvStreamReconfigureNeeded = false; + } + if (sendStreamRecreationNeeded) { + sendStreamReconfigureNeeded = false; + } + + { + AutoWriteLock lock(mLock); + // Recreate/Stop/Start streams as needed. + if (recvStreamRecreationNeeded) { + DeleteRecvStream(); + } + if (mControl.mReceiving) { + CreateRecvStream(); + } + if (sendStreamRecreationNeeded) { + DeleteSendStream(); + } + if (mControl.mTransmitting) { + CreateSendStream(); + } + } + + // We make sure to not hold the lock while stopping/starting/reconfiguring + // streams, so as to not cause deadlocks. These methods can cause our platform + // codecs to dispatch sync runnables to main, and main may grab the lock. + + if (mRecvStream && recvStreamReconfigureNeeded) { + MOZ_ASSERT(!recvStreamRecreationNeeded); + mRecvStream->SetDecoderMap(mRecvStreamConfig.decoder_map); + } + + if (mSendStream && sendStreamReconfigureNeeded) { + MOZ_ASSERT(!sendStreamRecreationNeeded); + mSendStream->Reconfigure(mSendStreamConfig); + } + + if (!mControl.mReceiving) { + StopReceiving(); + } + if (!mControl.mTransmitting) { + StopTransmitting(); + } + + if (mControl.mReceiving) { + StartReceiving(); + } + if (mControl.mTransmitting) { + StartTransmitting(); + } +} + +std::vector WebrtcAudioConduit::GetLocalSSRCs() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + return std::vector(1, mRecvStreamConfig.rtp.local_ssrc); +} + +bool WebrtcAudioConduit::OverrideRemoteSSRC(uint32_t aSsrc) { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + if (mRecvStreamConfig.rtp.remote_ssrc == aSsrc) { + return true; + } + mRecvStreamConfig.rtp.remote_ssrc = aSsrc; + + const bool wasReceiving = mRecvStreamRunning; + const bool hadRecvStream = mRecvStream; + + StopReceiving(); + + if (hadRecvStream) { + AutoWriteLock lock(mLock); + DeleteRecvStream(); + CreateRecvStream(); + } + + if (wasReceiving) { + StartReceiving(); + } + return true; +} + +Maybe WebrtcAudioConduit::GetRemoteSSRC() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + // libwebrtc uses 0 to mean a lack of SSRC. That is not to spec. + return mRecvStreamConfig.rtp.remote_ssrc == 0 + ? Nothing() + : Some(mRecvStreamConfig.rtp.remote_ssrc); +} + +Maybe +WebrtcAudioConduit::GetReceiverStats() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + if (!mRecvStream) { + return Nothing(); + } + return Some(mRecvStream->GetStats()); +} + +Maybe WebrtcAudioConduit::GetSenderStats() + const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + if (!mSendStream) { + return Nothing(); + } + return Some(mSendStream->GetStats()); +} + +Maybe WebrtcAudioConduit::GetCallStats() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + if (!mCall->Call()) { + return Nothing(); + } + return Some(mCall->Call()->GetStats()); +} + +void WebrtcAudioConduit::OnRtcpBye() { mRtcpByeEvent.Notify(); } + +void WebrtcAudioConduit::OnRtcpTimeout() { mRtcpTimeoutEvent.Notify(); } + +// AudioSessionConduit Implementation +MediaConduitErrorCode WebrtcAudioConduit::SendAudioFrame( + std::unique_ptr frame) { + CSFLogDebug(LOGTAG, "%s ", __FUNCTION__); + // Following checks need to be performed + // 1. Non null audio buffer pointer, and + // 2. Valid sample rate, and + // 3. Appropriate Sample Length for 10 ms audio-frame. This represents the + // block size used upstream for processing. + // Ex: for 16000 sample rate , valid block-length is 160. + // Similarly for 32000 sample rate, valid block length is 320. + + if (!frame->data() || + (IsSamplingFreqSupported(frame->sample_rate_hz()) == false) || + ((frame->samples_per_channel() % (frame->sample_rate_hz() / 100) != 0))) { + CSFLogError(LOGTAG, "%s Invalid Parameters ", __FUNCTION__); + MOZ_ASSERT(PR_FALSE); + return kMediaConduitMalformedArgument; + } + + // This is the AudioProxyThread, blocking it for a bit is fine. + AutoReadLock lock(mLock); + if (!mSendStreamRunning) { + CSFLogError(LOGTAG, "%s Engine not transmitting ", __FUNCTION__); + return kMediaConduitSessionNotInited; + } + + mSendStream->SendAudioData(std::move(frame)); + return kMediaConduitNoError; +} + +MediaConduitErrorCode WebrtcAudioConduit::GetAudioFrame( + int32_t samplingFreqHz, webrtc::AudioFrame* frame) { + CSFLogDebug(LOGTAG, "%s ", __FUNCTION__); + + // validate params + if (!frame) { + CSFLogError(LOGTAG, "%s Null Audio Buffer Pointer", __FUNCTION__); + MOZ_ASSERT(PR_FALSE); + return kMediaConduitMalformedArgument; + } + + // Validate sample length + if (GetNum10msSamplesForFrequency(samplingFreqHz) == 0) { + CSFLogError(LOGTAG, "%s Invalid Sampling Frequency ", __FUNCTION__); + MOZ_ASSERT(PR_FALSE); + return kMediaConduitMalformedArgument; + } + + // If the lock is taken, skip this chunk to avoid blocking the audio thread. + AutoTryReadLock tryLock(mLock); + if (!tryLock) { + CSFLogError(LOGTAG, "%s Conduit going through negotiation ", __FUNCTION__); + return kMediaConduitPlayoutError; + } + + // Conduit should have reception enabled before we ask for decoded + // samples + if (!mRecvStreamRunning) { + CSFLogError(LOGTAG, "%s Engine not Receiving ", __FUNCTION__); + return kMediaConduitSessionNotInited; + } + + // Unfortunate to have to cast to an internal class, but that looks like the + // only way short of interfacing with a layer above (which mixes all streams, + // which we don't want) or a layer below (which we try to avoid because it is + // less stable). + auto info = static_cast(mRecvStream) + ->GetAudioFrameWithInfo(samplingFreqHz, frame); + + if (info == webrtc::AudioMixer::Source::AudioFrameInfo::kError) { + CSFLogError(LOGTAG, "%s Getting audio frame failed", __FUNCTION__); + return kMediaConduitPlayoutError; + } + + CSFLogDebug(LOGTAG, "%s Got %zu channels of %zu samples", __FUNCTION__, + frame->num_channels(), frame->samples_per_channel()); + return kMediaConduitNoError; +} + +// Transport Layer Callbacks +void WebrtcAudioConduit::OnRtpReceived(MediaPacket&& aPacket, + webrtc::RTPHeader&& aHeader) { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + if (mAllowSsrcChange && mRecvStreamConfig.rtp.remote_ssrc != aHeader.ssrc) { + CSFLogDebug(LOGTAG, "%s: switching from SSRC %u to %u", __FUNCTION__, + mRecvStreamConfig.rtp.remote_ssrc, aHeader.ssrc); + OverrideRemoteSSRC(aHeader.ssrc); + } + + CSFLogVerbose(LOGTAG, "%s: seq# %u, Len %zu, SSRC %u (0x%x) ", __FUNCTION__, + (uint16_t)ntohs(((uint16_t*)aPacket.data())[1]), aPacket.len(), + (uint32_t)ntohl(((uint32_t*)aPacket.data())[2]), + (uint32_t)ntohl(((uint32_t*)aPacket.data())[2])); + + DeliverPacket(rtc::CopyOnWriteBuffer(aPacket.data(), aPacket.len()), + PacketType::RTP); +} + +void WebrtcAudioConduit::OnRtcpReceived(MediaPacket&& aPacket) { + CSFLogDebug(LOGTAG, "%s", __FUNCTION__); + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + DeliverPacket(rtc::CopyOnWriteBuffer(aPacket.data(), aPacket.len()), + PacketType::RTCP); +} + +Maybe WebrtcAudioConduit::RtpSendBaseSeqFor(uint32_t aSsrc) const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + auto it = mRtpSendBaseSeqs.find(aSsrc); + if (it == mRtpSendBaseSeqs.end()) { + return Nothing(); + } + return Some(it->second); +} + +const dom::RTCStatsTimestampMaker& WebrtcAudioConduit::GetTimestampMaker() + const { + return mCall->GetTimestampMaker(); +} + +void WebrtcAudioConduit::StopTransmitting() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(!mLock.LockedForWritingByCurrentThread()); + + if (!mSendStreamRunning) { + return; + } + + if (mSendStream) { + CSFLogDebug(LOGTAG, "%s Stopping send stream", __FUNCTION__); + mSendStream->Stop(); + } + + mSendStreamRunning = false; +} + +void WebrtcAudioConduit::StartTransmitting() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mSendStream); + MOZ_ASSERT(!mLock.LockedForWritingByCurrentThread()); + + if (mSendStreamRunning) { + return; + } + + CSFLogDebug(LOGTAG, "%s Starting send stream", __FUNCTION__); + + mCall->Call()->SignalChannelNetworkState(webrtc::MediaType::AUDIO, + webrtc::kNetworkUp); + mSendStream->Start(); + mSendStreamRunning = true; +} + +void WebrtcAudioConduit::StopReceiving() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(!mLock.LockedForWritingByCurrentThread()); + + if (!mRecvStreamRunning) { + return; + } + + if (mRecvStream) { + CSFLogDebug(LOGTAG, "%s Stopping recv stream", __FUNCTION__); + mRecvStream->Stop(); + } + + mRecvStreamRunning = false; +} + +void WebrtcAudioConduit::StartReceiving() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mRecvStream); + MOZ_ASSERT(!mLock.LockedForWritingByCurrentThread()); + + if (mRecvStreamRunning) { + return; + } + + CSFLogDebug(LOGTAG, "%s Starting receive stream (SSRC %u (0x%x))", + __FUNCTION__, mRecvStreamConfig.rtp.remote_ssrc, + mRecvStreamConfig.rtp.remote_ssrc); + + mCall->Call()->SignalChannelNetworkState(webrtc::MediaType::AUDIO, + webrtc::kNetworkUp); + mRecvStream->Start(); + mRecvStreamRunning = true; +} + +bool WebrtcAudioConduit::SendRtp(const uint8_t* aData, size_t aLength, + const webrtc::PacketOptions& aOptions) { + MOZ_ASSERT(aLength >= 12); + const uint16_t seqno = ntohs(*((uint16_t*)&aData[2])); + const uint32_t ssrc = ntohl(*((uint32_t*)&aData[8])); + + CSFLogVerbose( + LOGTAG, + "AudioConduit %p: Sending RTP Packet seq# %u, len %zu, SSRC %u (0x%x)", + this, seqno, aLength, ssrc, ssrc); + + if (!mTransportActive) { + CSFLogError(LOGTAG, "AudioConduit %p: RTP Packet Send Failed ", this); + return false; + } + + MediaPacket packet; + packet.Copy(aData, aLength, aLength + SRTP_MAX_EXPANSION); + packet.SetType(MediaPacket::RTP); + mSenderRtpSendEvent.Notify(std::move(packet)); + + // Parse the sequence number of the first rtp packet as base_seq. + const auto inserted = mRtpSendBaseSeqs_n.insert({ssrc, seqno}).second; + + if (inserted || aOptions.packet_id >= 0) { + int64_t now_ms = PR_Now() / 1000; + MOZ_ALWAYS_SUCCEEDS(mCallThread->Dispatch(NS_NewRunnableFunction( + __func__, [this, self = RefPtr(this), + packet_id = aOptions.packet_id, now_ms, ssrc, seqno] { + mRtpSendBaseSeqs.insert({ssrc, seqno}); + if (packet_id >= 0) { + if (mCall->Call()) { + // TODO: This notification should ideally happen after the + // transport layer has sent the packet on the wire. + mCall->Call()->OnSentPacket({packet_id, now_ms}); + } + } + }))); + } + return true; +} + +bool WebrtcAudioConduit::SendSenderRtcp(const uint8_t* aData, size_t aLength) { + CSFLogVerbose( + LOGTAG, + "AudioConduit %p: Sending RTCP SR Packet, len %zu, SSRC %u (0x%x)", this, + aLength, (uint32_t)ntohl(*((uint32_t*)&aData[4])), + (uint32_t)ntohl(*((uint32_t*)&aData[4]))); + + if (!mTransportActive) { + CSFLogError(LOGTAG, "%s RTCP SR Packet Send Failed ", __FUNCTION__); + return false; + } + + MediaPacket packet; + packet.Copy(aData, aLength, aLength + SRTP_MAX_EXPANSION); + packet.SetType(MediaPacket::RTCP); + mSenderRtcpSendEvent.Notify(std::move(packet)); + return true; +} + +bool WebrtcAudioConduit::SendReceiverRtcp(const uint8_t* aData, + size_t aLength) { + CSFLogVerbose( + LOGTAG, + "AudioConduit %p: Sending RTCP RR Packet, len %zu, SSRC %u (0x%x)", this, + aLength, (uint32_t)ntohl(*((uint32_t*)&aData[4])), + (uint32_t)ntohl(*((uint32_t*)&aData[4]))); + + if (!mTransportActive) { + CSFLogError(LOGTAG, "AudioConduit %p: RTCP RR Packet Send Failed", this); + return false; + } + + MediaPacket packet; + packet.Copy(aData, aLength, aLength + SRTP_MAX_EXPANSION); + packet.SetType(MediaPacket::RTCP); + mReceiverRtcpSendEvent.Notify(std::move(packet)); + return true; +} + +/** + * Supported Sampling Frequencies. + */ +bool WebrtcAudioConduit::IsSamplingFreqSupported(int freq) const { + return GetNum10msSamplesForFrequency(freq) != 0; +} + +std::vector WebrtcAudioConduit::GetUpstreamRtpSources() + const { + MOZ_ASSERT(NS_IsMainThread()); + std::vector sources; + { + AutoReadLock lock(mLock); + if (mRecvStream) { + sources = mRecvStream->GetSources(); + } + } + return sources; +} + +/* Return block-length of 10 ms audio frame in number of samples */ +unsigned int WebrtcAudioConduit::GetNum10msSamplesForFrequency( + int samplingFreqHz) const { + switch (samplingFreqHz) { + case 16000: + return 160; // 160 samples + case 32000: + return 320; // 320 samples + case 44100: + return 441; // 441 samples + case 48000: + return 480; // 480 samples + default: + return 0; // invalid or unsupported + } +} + +/** + * Perform validation on the codecConfig to be applied. + * Verifies if the codec is already applied. + */ +MediaConduitErrorCode WebrtcAudioConduit::ValidateCodecConfig( + const AudioCodecConfig& codecInfo, bool send) { + if (codecInfo.mName.empty()) { + CSFLogError(LOGTAG, "%s Empty Payload Name ", __FUNCTION__); + return kMediaConduitMalformedArgument; + } + + // Only mono or stereo channels supported + if ((codecInfo.mChannels != 1) && (codecInfo.mChannels != 2)) { + CSFLogError(LOGTAG, "%s Channel Unsupported ", __FUNCTION__); + return kMediaConduitMalformedArgument; + } + + return kMediaConduitNoError; +} + +RtpExtList WebrtcAudioConduit::FilterExtensions(LocalDirection aDirection, + const RtpExtList& aExtensions) { + const bool isSend = aDirection == LocalDirection::kSend; + RtpExtList filteredExtensions; + + for (const auto& extension : aExtensions) { + // ssrc-audio-level RTP header extension + if (extension.uri == webrtc::RtpExtension::kAudioLevelUri) { + filteredExtensions.push_back( + webrtc::RtpExtension(extension.uri, extension.id)); + } + + // csrc-audio-level RTP header extension + if (extension.uri == webrtc::RtpExtension::kCsrcAudioLevelsUri) { + if (isSend) { + continue; + } + filteredExtensions.push_back( + webrtc::RtpExtension(extension.uri, extension.id)); + } + + // MID RTP header extension + if (extension.uri == webrtc::RtpExtension::kMidUri) { + if (!isSend) { + // TODO: recv mid support, see also bug 1727211 + continue; + } + filteredExtensions.push_back( + webrtc::RtpExtension(extension.uri, extension.id)); + } + } + + return filteredExtensions; +} + +webrtc::SdpAudioFormat WebrtcAudioConduit::CodecConfigToLibwebrtcFormat( + const AudioCodecConfig& aConfig) { + webrtc::SdpAudioFormat::Parameters parameters; + if (aConfig.mName == kOpusCodecName) { + if (aConfig.mChannels == 2) { + parameters[kCodecParamStereo] = kParamValueTrue; + } + if (aConfig.mFECEnabled) { + parameters[kCodecParamUseInbandFec] = kParamValueTrue; + } + if (aConfig.mDTXEnabled) { + parameters[kCodecParamUseDtx] = kParamValueTrue; + } + if (aConfig.mMaxPlaybackRate) { + parameters[kCodecParamMaxPlaybackRate] = + std::to_string(aConfig.mMaxPlaybackRate); + } + if (aConfig.mMaxAverageBitrate) { + parameters[kCodecParamMaxAverageBitrate] = + std::to_string(aConfig.mMaxAverageBitrate); + } + if (aConfig.mFrameSizeMs) { + parameters[kCodecParamPTime] = std::to_string(aConfig.mFrameSizeMs); + } + if (aConfig.mMinFrameSizeMs) { + parameters[kCodecParamMinPTime] = std::to_string(aConfig.mMinFrameSizeMs); + } + if (aConfig.mMaxFrameSizeMs) { + parameters[kCodecParamMaxPTime] = std::to_string(aConfig.mMaxFrameSizeMs); + } + if (aConfig.mCbrEnabled) { + parameters[kCodecParamCbr] = kParamValueTrue; + } + } + + return webrtc::SdpAudioFormat(aConfig.mName, aConfig.mFreq, aConfig.mChannels, + parameters); +} + +void WebrtcAudioConduit::DeleteSendStream() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mLock.LockedForWritingByCurrentThread()); + + if (!mSendStream) { + return; + } + + mCall->Call()->DestroyAudioSendStream(mSendStream); + mSendStreamRunning = false; + mSendStream = nullptr; + + // Reset base_seqs in case ssrcs get re-used. + mRtpSendBaseSeqs.clear(); +} + +void WebrtcAudioConduit::CreateSendStream() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mLock.LockedForWritingByCurrentThread()); + + if (mSendStream) { + return; + } + + mSendStream = mCall->Call()->CreateAudioSendStream(mSendStreamConfig); +} + +void WebrtcAudioConduit::DeleteRecvStream() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mLock.LockedForWritingByCurrentThread()); + + if (!mRecvStream) { + return; + } + + mCall->Call()->DestroyAudioReceiveStream(mRecvStream); + mRecvStreamRunning = false; + mRecvStream = nullptr; +} + +void WebrtcAudioConduit::CreateRecvStream() { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + MOZ_ASSERT(mLock.LockedForWritingByCurrentThread()); + + if (mRecvStream) { + return; + } + + mRecvStream = mCall->Call()->CreateAudioReceiveStream(mRecvStreamConfig); +} + +void WebrtcAudioConduit::DeliverPacket(rtc::CopyOnWriteBuffer packet, + PacketType type) { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + if (!mCall->Call()) { + return; + } + + // Bug 1499796 - we need to get passed the time the packet was received + webrtc::PacketReceiver::DeliveryStatus status = + mCall->Call()->Receiver()->DeliverPacket(webrtc::MediaType::AUDIO, + std::move(packet), -1); + + if (status != webrtc::PacketReceiver::DELIVERY_OK) { + CSFLogError(LOGTAG, "%s DeliverPacket Failed for %s packet, %d", + __FUNCTION__, type == PacketType::RTP ? "RTP" : "RTCP", status); + } +} + +Maybe WebrtcAudioConduit::ActiveSendPayloadType() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + auto stats = GetSenderStats(); + if (!stats) { + return Nothing(); + } + + if (!stats->codec_payload_type) { + return Nothing(); + } + + return Some(*stats->codec_payload_type); +} + +Maybe WebrtcAudioConduit::ActiveRecvPayloadType() const { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + + auto stats = GetReceiverStats(); + if (!stats) { + return Nothing(); + } + + if (!stats->codec_payload_type) { + return Nothing(); + } + + return Some(*stats->codec_payload_type); +} + +} // namespace mozilla diff --git a/dom/media/webrtc/libwebrtcglue/AudioConduit.h b/dom/media/webrtc/libwebrtcglue/AudioConduit.h new file mode 100644 index 0000000000..630b22b297 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/AudioConduit.h @@ -0,0 +1,315 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef AUDIO_SESSION_H_ +#define AUDIO_SESSION_H_ + +#include "mozilla/Attributes.h" +#include "mozilla/ReentrantMonitor.h" +#include "mozilla/RWLock.h" +#include "mozilla/StateMirroring.h" +#include "mozilla/TimeStamp.h" + +#include "MediaConduitInterface.h" +#include "common/MediaEngineWrapper.h" + +/** + * This file hosts several structures identifying different aspects of a RTP + * Session. + */ +namespace mozilla { + +struct DtmfEvent; + +/** + * Concrete class for Audio session. Hooks up + * - media-source and target to external transport + */ +class WebrtcAudioConduit : public AudioSessionConduit, + public webrtc::RtcpEventObserver { + public: + Maybe ActiveSendPayloadType() const override; + Maybe ActiveRecvPayloadType() const override; + + void OnRtpReceived(MediaPacket&& aPacket, webrtc::RTPHeader&& aHeader); + void OnRtcpReceived(MediaPacket&& aPacket); + + void OnRtcpBye() override; + void OnRtcpTimeout() override; + + void SetTransportActive(bool aActive) override { + mTransportActive = aActive; + if (!aActive) { + mReceiverRtpEventListener.DisconnectIfExists(); + mReceiverRtcpEventListener.DisconnectIfExists(); + mSenderRtcpEventListener.DisconnectIfExists(); + } + } + MediaEventSourceExc& SenderRtpSendEvent() override { + return mSenderRtpSendEvent; + } + MediaEventSourceExc& SenderRtcpSendEvent() override { + return mSenderRtcpSendEvent; + } + MediaEventSourceExc& ReceiverRtcpSendEvent() override { + return mReceiverRtcpSendEvent; + } + void ConnectReceiverRtpEvent( + MediaEventSourceExc& aEvent) override { + // Hold a strong-ref to `this` for safety, since we'll be disconnecting + // off-target. + mReceiverRtpEventListener = aEvent.Connect( + mCallThread, [this, self = RefPtr(this)]( + MediaPacket aPacket, webrtc::RTPHeader aHeader) { + OnRtpReceived(std::move(aPacket), std::move(aHeader)); + }); + } + void ConnectReceiverRtcpEvent( + MediaEventSourceExc& aEvent) override { + // Hold a strong-ref to `this` for safety, since we'll be disconnecting + // off-target. + mReceiverRtcpEventListener = aEvent.Connect( + mCallThread, + [this, self = RefPtr(this)](MediaPacket aPacket) { + OnRtcpReceived(std::move(aPacket)); + }); + } + void ConnectSenderRtcpEvent( + MediaEventSourceExc& aEvent) override { + // Hold a strong-ref to `this` for safety, since we'll be disconnecting + // off-target. + mSenderRtcpEventListener = aEvent.Connect( + mCallThread, + [this, self = RefPtr(this)](MediaPacket aPacket) { + OnRtcpReceived(std::move(aPacket)); + }); + } + + Maybe RtpSendBaseSeqFor(uint32_t aSsrc) const override; + + const dom::RTCStatsTimestampMaker& GetTimestampMaker() const override; + + void StopTransmitting(); + void StartTransmitting(); + void StopReceiving(); + void StartReceiving(); + + /** + * Function to deliver externally captured audio sample for encoding and + * transport + * @param frame [in]: AudioFrame in upstream's format for forwarding to the + * send stream. Ownership is passed along. + * NOTE: ConfigureSendMediaCodec() SHOULD be called before this function can + * be invoked. This ensures the inserted audio-samples can be transmitted by + * the conduit. + */ + MediaConduitErrorCode SendAudioFrame( + std::unique_ptr frame) override; + + /** + * Function to grab a decoded audio-sample from the media engine for + * rendering / playout of length 10 milliseconds. + * + * @param samplingFreqHz [in]: Frequency of the sampling for playback in + * Hertz (16000, 32000,..) + * @param frame [in/out]: Pointer to an AudioFrame to which audio data will be + * copied + * NOTE: This function should be invoked every 10 milliseconds for the best + * performance + * NOTE: ConfigureRecvMediaCodec() SHOULD be called before this function can + * be invoked + * This ensures the decoded samples are ready for reading and playout is + * enabled. + */ + MediaConduitErrorCode GetAudioFrame(int32_t samplingFreqHz, + webrtc::AudioFrame* frame) override; + + bool SendRtp(const uint8_t* aData, size_t aLength, + const webrtc::PacketOptions& aOptions) override; + bool SendSenderRtcp(const uint8_t* aData, size_t aLength) override; + bool SendReceiverRtcp(const uint8_t* aData, size_t aLength) override; + + bool HasCodecPluginID(uint64_t aPluginID) const override { return false; } + + void DeliverPacket(rtc::CopyOnWriteBuffer packet, PacketType type) override; + + RefPtr Shutdown() override; + + WebrtcAudioConduit(RefPtr aCall, + nsCOMPtr aStsThread); + + virtual ~WebrtcAudioConduit(); + + // Call thread. + void InitControl(AudioConduitControlInterface* aControl) override; + + // Handle a DTMF event from mControl.mOnDtmfEventListener. + void OnDtmfEvent(const DtmfEvent& aEvent); + + // Called when a parameter in mControl has changed. Call thread. + void OnControlConfigChange(); + + Ssrcs GetLocalSSRCs() const override; + Maybe GetRemoteSSRC() const override; + + void DisableSsrcChanges() override { + MOZ_ASSERT(mCallThread->IsOnCurrentThread()); + mAllowSsrcChange = false; + } + + private: + /** + * Override the remote ssrc configured on mRecvStreamConfig. + * + * Recreates and restarts the recv stream if needed. The overriden value is + * overwritten the next time the mControl.mRemoteSsrc mirror changes value. + * + * Call thread only. + */ + bool OverrideRemoteSSRC(uint32_t aSsrc); + + public: + void UnsetRemoteSSRC(uint32_t aSsrc) override {} + + Maybe GetReceiverStats() + const override; + Maybe GetSenderStats() const override; + Maybe GetCallStats() const override; + + bool IsSamplingFreqSupported(int freq) const override; + + MediaEventSource& RtcpByeEvent() override { return mRtcpByeEvent; } + MediaEventSource& RtcpTimeoutEvent() override { + return mRtcpTimeoutEvent; + } + + std::vector GetUpstreamRtpSources() const override; + + private: + WebrtcAudioConduit(const WebrtcAudioConduit& other) = delete; + void operator=(const WebrtcAudioConduit& other) = delete; + + // Generate block size in sample length for a given sampling frequency + unsigned int GetNum10msSamplesForFrequency(int samplingFreqHz) const; + + // Checks the codec to be applied + static MediaConduitErrorCode ValidateCodecConfig( + const AudioCodecConfig& codecInfo, bool send); + /** + * Of all extensions in aExtensions, returns a list of supported extensions. + */ + static RtpExtList FilterExtensions( + MediaSessionConduitLocalDirection aDirection, + const RtpExtList& aExtensions); + static webrtc::SdpAudioFormat CodecConfigToLibwebrtcFormat( + const AudioCodecConfig& aConfig); + + void CreateSendStream(); + void DeleteSendStream(); + void CreateRecvStream(); + void DeleteRecvStream(); + + // Are SSRC changes without signaling allowed or not. + // Call thread only. + bool mAllowSsrcChange = true; + + // Const so can be accessed on any thread. Most methods are called on the Call + // thread. + const RefPtr mCall; + + // Set up in the ctor and then not touched. Called through by the streams on + // any thread. + WebrtcSendTransport mSendTransport; + WebrtcReceiveTransport mRecvTransport; + + // Accessed only on the Call thread. + webrtc::AudioReceiveStreamInterface::Config mRecvStreamConfig; + + // Written only on the Call thread. Guarded by mLock, except for reads on the + // Call thread. + webrtc::AudioReceiveStreamInterface* mRecvStream; + + // Accessed only on the Call thread. + webrtc::AudioSendStream::Config mSendStreamConfig; + + // Written only on the Call thread. Guarded by mLock, except for reads on the + // Call thread. + webrtc::AudioSendStream* mSendStream; + + // If true => mSendStream started and not stopped + // Written only on the Call thread. + Atomic mSendStreamRunning; + // If true => mRecvStream started and not stopped + // Written only on the Call thread. + Atomic mRecvStreamRunning; + + // Accessed only on the Call thread. + bool mDtmfEnabled; + + mutable RWLock mLock MOZ_UNANNOTATED; + + // Call worker thread. All access to mCall->Call() happens here. + const RefPtr mCallThread; + + // Socket transport service thread. Any thread. + const nsCOMPtr mStsThread; + + struct Control { + // Mirrors and events that map to AudioConduitControlInterface for control. + // Call thread only. + Mirror mReceiving; + Mirror mTransmitting; + Mirror mLocalSsrcs; + Mirror mLocalCname; + Mirror mMid; + Mirror mRemoteSsrc; + Mirror mSyncGroup; + Mirror mLocalRecvRtpExtensions; + Mirror mLocalSendRtpExtensions; + Mirror> mSendCodec; + Mirror> mRecvCodecs; + MediaEventListener mOnDtmfEventListener; + + // For caching mRemoteSsrc, since another caller may change the remote ssrc + // in the stream config directly. + Ssrc mConfiguredRemoteSsrc = 0; + // For tracking changes to mSendCodec. + Maybe mConfiguredSendCodec; + // For tracking changes to mRecvCodecs. + std::vector mConfiguredRecvCodecs; + + Control() = delete; + explicit Control(const RefPtr& aCallThread); + } mControl; + + // WatchManager allowing Mirrors to trigger functions that will update the + // webrtc.org configuration. + WatchManager mWatchManager; + + // Accessed from mStsThread. Last successfully polled RTT + Maybe mRttSec; + + // Call thread only. ssrc -> base_seq + std::map mRtpSendBaseSeqs; + // libwebrtc network thread only. ssrc -> base_seq. + // To track changes needed to mRtpSendBaseSeqs. + std::map mRtpSendBaseSeqs_n; + + // Thread safe + Atomic mTransportActive = Atomic(false); + MediaEventProducer mRtcpByeEvent; + MediaEventProducer mRtcpTimeoutEvent; + MediaEventProducerExc mSenderRtpSendEvent; + MediaEventProducerExc mSenderRtcpSendEvent; + MediaEventProducerExc mReceiverRtcpSendEvent; + + // Assigned and revoked on mStsThread. Listeners for receiving packets. + MediaEventListener mSenderRtcpEventListener; // Rtp-transmitting pipeline + MediaEventListener mReceiverRtcpEventListener; // Rtp-receiving pipeline + MediaEventListener mReceiverRtpEventListener; // Rtp-receiving pipeline +}; + +} // namespace mozilla + +#endif diff --git a/dom/media/webrtc/libwebrtcglue/CallWorkerThread.h b/dom/media/webrtc/libwebrtcglue/CallWorkerThread.h new file mode 100644 index 0000000000..12d21fbee4 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/CallWorkerThread.h @@ -0,0 +1,116 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_CALLWORKERTHREAD_H_ +#define DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_CALLWORKERTHREAD_H_ + +#include "mozilla/AbstractThread.h" +#include "nsIDirectTaskDispatcher.h" +#include "TaskQueueWrapper.h" + +namespace mozilla { + +// Implements AbstractThread for running things on the webrtc TaskQueue. +// Webrtc TaskQueues are not refcounted so cannot implement AbstractThread +// directly. +class CallWorkerThread final : public AbstractThread, + public nsIDirectTaskDispatcher { + public: + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIDIRECTTASKDISPATCHER + + explicit CallWorkerThread( + UniquePtr> aWebrtcTaskQueue) + : AbstractThread(aWebrtcTaskQueue->mTaskQueue->SupportsTailDispatch()), + mWebrtcTaskQueue(std::move(aWebrtcTaskQueue)) {} + + // AbstractThread overrides + nsresult Dispatch(already_AddRefed aRunnable, + DispatchReason aReason) override; + bool IsCurrentThreadIn() const override; + TaskDispatcher& TailDispatcher() override; + nsIEventTarget* AsEventTarget() override; + NS_IMETHOD + DelayedDispatch(already_AddRefed aEvent, + uint32_t aDelayMs) override; + + NS_IMETHOD RegisterShutdownTask(nsITargetShutdownTask* aTask) override; + NS_IMETHOD UnregisterShutdownTask(nsITargetShutdownTask* aTask) override; + + const UniquePtr> + mWebrtcTaskQueue; + + protected: + ~CallWorkerThread() = default; +}; + +NS_IMPL_ISUPPORTS(CallWorkerThread, nsIDirectTaskDispatcher, + nsISerialEventTarget, nsIEventTarget); + +//----------------------------------------------------------------------------- +// AbstractThread +//----------------------------------------------------------------------------- + +nsresult CallWorkerThread::Dispatch(already_AddRefed aRunnable, + DispatchReason aReason) { + RefPtr runnable = aRunnable; + return mWebrtcTaskQueue->mTaskQueue->Dispatch( + mWebrtcTaskQueue->CreateTaskRunner(std::move(runnable)), aReason); +} + +bool CallWorkerThread::IsCurrentThreadIn() const { + return mWebrtcTaskQueue->mTaskQueue->IsOnCurrentThreadInfallible() && + mWebrtcTaskQueue->IsCurrent(); +} + +TaskDispatcher& CallWorkerThread::TailDispatcher() { + return mWebrtcTaskQueue->mTaskQueue->TailDispatcher(); +} + +nsIEventTarget* CallWorkerThread::AsEventTarget() { + return mWebrtcTaskQueue->mTaskQueue->AsEventTarget(); +} + +NS_IMETHODIMP +CallWorkerThread::DelayedDispatch(already_AddRefed aEvent, + uint32_t aDelayMs) { + RefPtr event = aEvent; + return mWebrtcTaskQueue->mTaskQueue->DelayedDispatch( + mWebrtcTaskQueue->CreateTaskRunner(std::move(event)), aDelayMs); +} + +NS_IMETHODIMP CallWorkerThread::RegisterShutdownTask( + nsITargetShutdownTask* aTask) { + return mWebrtcTaskQueue->mTaskQueue->RegisterShutdownTask(aTask); +} + +NS_IMETHODIMP CallWorkerThread::UnregisterShutdownTask( + nsITargetShutdownTask* aTask) { + return mWebrtcTaskQueue->mTaskQueue->UnregisterShutdownTask(aTask); +} + +//----------------------------------------------------------------------------- +// nsIDirectTaskDispatcher +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +CallWorkerThread::DispatchDirectTask(already_AddRefed aEvent) { + nsCOMPtr event = aEvent; + return mWebrtcTaskQueue->mTaskQueue->DispatchDirectTask( + mWebrtcTaskQueue->CreateTaskRunner(std::move(event))); +} + +NS_IMETHODIMP CallWorkerThread::DrainDirectTasks() { + return mWebrtcTaskQueue->mTaskQueue->DrainDirectTasks(); +} + +NS_IMETHODIMP CallWorkerThread::HaveDirectTasks(bool* aValue) { + return mWebrtcTaskQueue->mTaskQueue->HaveDirectTasks(aValue); +} + +} // namespace mozilla + +#endif diff --git a/dom/media/webrtc/libwebrtcglue/CodecConfig.h b/dom/media/webrtc/libwebrtcglue/CodecConfig.h new file mode 100644 index 0000000000..023ea98783 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/CodecConfig.h @@ -0,0 +1,237 @@ + +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef CODEC_CONFIG_H_ +#define CODEC_CONFIG_H_ + +#include +#include + +#include "common/EncodingConstraints.h" + +namespace mozilla { + +/** + * Minimalistic Audio Codec Config Params + */ +struct AudioCodecConfig { + /* + * The data-types for these properties mimic the + * corresponding webrtc::CodecInst data-types. + */ + int mType; + std::string mName; + int mFreq; + int mChannels; + + bool mFECEnabled; + bool mDtmfEnabled; + uint32_t mFrameSizeMs; + uint32_t mMaxFrameSizeMs; + uint32_t mMinFrameSizeMs; + + // OPUS-specific + bool mDTXEnabled; + uint32_t mMaxAverageBitrate; + int mMaxPlaybackRate; + bool mCbrEnabled; + + AudioCodecConfig(int type, std::string name, int freq, int channels, + bool FECEnabled) + : mType(type), + mName(name), + mFreq(freq), + mChannels(channels), + mFECEnabled(FECEnabled), + mDtmfEnabled(false), + mFrameSizeMs(0), + mMaxFrameSizeMs(0), + mMinFrameSizeMs(0), + mDTXEnabled(false), + mMaxAverageBitrate(0), + mMaxPlaybackRate(0), + mCbrEnabled(false) {} + + bool operator==(const AudioCodecConfig& aOther) const { + return mType == aOther.mType && mName == aOther.mName && + mFreq == aOther.mFreq && mChannels == aOther.mChannels && + mFECEnabled == aOther.mFECEnabled && + mDtmfEnabled == aOther.mDtmfEnabled && + mFrameSizeMs == aOther.mFrameSizeMs && + mMaxFrameSizeMs == aOther.mMaxFrameSizeMs && + mMinFrameSizeMs == aOther.mMinFrameSizeMs && + mDTXEnabled == aOther.mDTXEnabled && + mMaxAverageBitrate == aOther.mMaxAverageBitrate && + mMaxPlaybackRate == aOther.mMaxPlaybackRate && + mCbrEnabled == aOther.mCbrEnabled; + } +}; + +/* + * Minimalistic video codec configuration + * More to be added later depending on the use-case + */ + +#define MAX_SPROP_LEN 128 + +// used for holding SDP negotiation results +struct VideoCodecConfigH264 { + char sprop_parameter_sets[MAX_SPROP_LEN]; + int packetization_mode; + int profile_level_id; + int tias_bw; + + bool operator==(const VideoCodecConfigH264& aOther) const { + return strncmp(sprop_parameter_sets, aOther.sprop_parameter_sets, + MAX_SPROP_LEN) == 0 && + packetization_mode == aOther.packetization_mode && + profile_level_id == aOther.profile_level_id && + tias_bw == aOther.tias_bw; + } +}; + +// class so the std::strings can get freed more easily/reliably +class VideoCodecConfig { + public: + /* + * The data-types for these properties mimic the + * corresponding webrtc::VideoCodec data-types. + */ + int mType; // payload type + std::string mName; + + std::vector mAckFbTypes; + std::vector mNackFbTypes; + std::vector mCcmFbTypes; + // Don't pass mOtherFbTypes from JsepVideoCodecDescription because we'd have + // to drag SdpRtcpFbAttributeList::Feedback along too. + bool mRembFbSet; + bool mFECFbSet; + bool mTransportCCFbSet; + + int mULPFECPayloadType; + int mREDPayloadType; + int mREDRTXPayloadType; + int mRTXPayloadType; + + uint32_t mTias; + EncodingConstraints mEncodingConstraints; + struct Encoding { + std::string rid; + EncodingConstraints constraints; + bool active = true; + // TODO(bug 1744116): Use = default here + bool operator==(const Encoding& aOther) const { + return rid == aOther.rid && constraints == aOther.constraints && + active == aOther.active; + } + }; + std::vector mEncodings; + std::string mSpropParameterSets; + uint8_t mProfile; + uint8_t mConstraints; + uint8_t mLevel; + uint8_t mPacketizationMode; + // TODO: add external negotiated SPS/PPS + + // TODO(bug 1744116): Use = default here + bool operator==(const VideoCodecConfig& aRhs) const { + return mType == aRhs.mType && mName == aRhs.mName && + mAckFbTypes == aRhs.mAckFbTypes && + mNackFbTypes == aRhs.mNackFbTypes && + mCcmFbTypes == aRhs.mCcmFbTypes && mRembFbSet == aRhs.mRembFbSet && + mFECFbSet == aRhs.mFECFbSet && + mTransportCCFbSet == aRhs.mTransportCCFbSet && + mULPFECPayloadType == aRhs.mULPFECPayloadType && + mREDPayloadType == aRhs.mREDPayloadType && + mREDRTXPayloadType == aRhs.mREDRTXPayloadType && + mRTXPayloadType == aRhs.mRTXPayloadType && mTias == aRhs.mTias && + mEncodingConstraints == aRhs.mEncodingConstraints && + mEncodings == aRhs.mEncodings && + mSpropParameterSets == aRhs.mSpropParameterSets && + mProfile == aRhs.mProfile && mConstraints == aRhs.mConstraints && + mLevel == aRhs.mLevel && + mPacketizationMode == aRhs.mPacketizationMode; + } + + VideoCodecConfig(int type, std::string name, + const EncodingConstraints& constraints, + const struct VideoCodecConfigH264* h264 = nullptr) + : mType(type), + mName(name), + mRembFbSet(false), + mFECFbSet(false), + mTransportCCFbSet(false), + mULPFECPayloadType(-1), + mREDPayloadType(-1), + mREDRTXPayloadType(-1), + mRTXPayloadType(-1), + mTias(0), + mEncodingConstraints(constraints), + mProfile(0x42), + mConstraints(0xE0), + mLevel(0x0C), + mPacketizationMode(1) { + if (h264) { + mProfile = (h264->profile_level_id & 0x00FF0000) >> 16; + mConstraints = (h264->profile_level_id & 0x0000FF00) >> 8; + mLevel = (h264->profile_level_id & 0x000000FF); + mPacketizationMode = h264->packetization_mode; + mSpropParameterSets = h264->sprop_parameter_sets; + } + } + + bool ResolutionEquals(const VideoCodecConfig& aConfig) const { + if (mEncodings.size() != aConfig.mEncodings.size()) { + return false; + } + for (size_t i = 0; i < mEncodings.size(); ++i) { + if (!mEncodings[i].constraints.ResolutionEquals( + aConfig.mEncodings[i].constraints)) { + return false; + } + } + return true; + } + + // Nothing seems to use this right now. Do we intend to support this + // someday? + bool RtcpFbAckIsSet(const std::string& type) const { + for (auto i = mAckFbTypes.begin(); i != mAckFbTypes.end(); ++i) { + if (*i == type) { + return true; + } + } + return false; + } + + bool RtcpFbNackIsSet(const std::string& type) const { + for (auto i = mNackFbTypes.begin(); i != mNackFbTypes.end(); ++i) { + if (*i == type) { + return true; + } + } + return false; + } + + bool RtcpFbCcmIsSet(const std::string& type) const { + for (auto i = mCcmFbTypes.begin(); i != mCcmFbTypes.end(); ++i) { + if (*i == type) { + return true; + } + } + return false; + } + + bool RtcpFbRembIsSet() const { return mRembFbSet; } + + bool RtcpFbFECIsSet() const { return mFECFbSet; } + + bool RtcpFbTransportCCIsSet() const { return mTransportCCFbSet; } + + bool RtxPayloadTypeIsSet() const { return mRTXPayloadType != -1; } +}; +} // namespace mozilla +#endif diff --git a/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.cpp b/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.cpp new file mode 100644 index 0000000000..ccadd846e2 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.cpp @@ -0,0 +1,22 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "WebrtcGmpVideoCodec.h" +#include "GmpVideoCodec.h" + +namespace mozilla { + +WebrtcVideoEncoder* GmpVideoCodec::CreateEncoder( + const webrtc::SdpVideoFormat& aFormat, std::string aPCHandle) { + return new WebrtcVideoEncoderProxy( + new WebrtcGmpVideoEncoder(aFormat, std::move(aPCHandle))); +} + +WebrtcVideoDecoder* GmpVideoCodec::CreateDecoder(std::string aPCHandle, + TrackingId aTrackingId) { + return new WebrtcVideoDecoderProxy(std::move(aPCHandle), + std::move(aTrackingId)); +} + +} // namespace mozilla diff --git a/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.h b/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.h new file mode 100644 index 0000000000..caf125c809 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/GmpVideoCodec.h @@ -0,0 +1,27 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef GMPVIDEOCODEC_H_ +#define GMPVIDEOCODEC_H_ + +#include + +#include "PerformanceRecorder.h" + +namespace mozilla { + +class WebrtcVideoDecoder; +class WebrtcVideoEncoder; + +class GmpVideoCodec { + public: + static WebrtcVideoEncoder* CreateEncoder( + const webrtc::SdpVideoFormat& aFormat, std::string aPCHandle); + static WebrtcVideoDecoder* CreateDecoder(std::string aPCHandle, + TrackingId aTrackingId); +}; + +} // namespace mozilla + +#endif diff --git a/dom/media/webrtc/libwebrtcglue/MediaConduitControl.h b/dom/media/webrtc/libwebrtcglue/MediaConduitControl.h new file mode 100644 index 0000000000..892b9f958e --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/MediaConduitControl.h @@ -0,0 +1,68 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_MEDIACONDUITCONTROL_H_ +#define DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_MEDIACONDUITCONTROL_H_ + +#include "jsapi/RTCDTMFSender.h" +#include "MediaConduitInterface.h" +#include "mozilla/StateMirroring.h" +#include "RtpRtcpConfig.h" + +namespace mozilla { + +/** + * These are the interfaces used to control the async conduits. Some parameters + * are common, and some are tied to the conduit type. See + * MediaSessionConduit::InitConduitControl for how they are used. + * + * Put simply, the implementer of the interfaces below may set its canonicals on + * any thread, and the conduits will react to those changes accordingly, on + * their dedicated worker thread. One instance of these interfaces could control + * multiple conduits as each canonical can connect to any number of mirrors. + */ + +class MediaConduitControlInterface { + public: + virtual AbstractCanonical* CanonicalReceiving() = 0; + virtual AbstractCanonical* CanonicalTransmitting() = 0; + virtual AbstractCanonical* CanonicalLocalSsrcs() = 0; + virtual AbstractCanonical* CanonicalLocalCname() = 0; + virtual AbstractCanonical* CanonicalMid() = 0; + virtual AbstractCanonical* CanonicalRemoteSsrc() = 0; + virtual AbstractCanonical* CanonicalSyncGroup() = 0; + virtual AbstractCanonical* CanonicalLocalRecvRtpExtensions() = 0; + virtual AbstractCanonical* CanonicalLocalSendRtpExtensions() = 0; +}; + +class AudioConduitControlInterface : public MediaConduitControlInterface { + public: + virtual AbstractCanonical>* + CanonicalAudioSendCodec() = 0; + virtual AbstractCanonical>* + CanonicalAudioRecvCodecs() = 0; + virtual MediaEventSource& OnDtmfEvent() = 0; +}; + +class VideoConduitControlInterface : public MediaConduitControlInterface { + public: + virtual AbstractCanonical* CanonicalLocalVideoRtxSsrcs() = 0; + virtual AbstractCanonical* CanonicalRemoteVideoRtxSsrc() = 0; + virtual AbstractCanonical>* + CanonicalVideoSendCodec() = 0; + virtual AbstractCanonical>* + CanonicalVideoSendRtpRtcpConfig() = 0; + virtual AbstractCanonical>* + CanonicalVideoRecvCodecs() = 0; + virtual AbstractCanonical>* + CanonicalVideoRecvRtpRtcpConfig() = 0; + virtual AbstractCanonical* + CanonicalVideoCodecMode() = 0; +}; + +} // namespace mozilla + +#endif diff --git a/dom/media/webrtc/libwebrtcglue/MediaConduitErrors.h b/dom/media/webrtc/libwebrtcglue/MediaConduitErrors.h new file mode 100644 index 0000000000..34487d77a0 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/MediaConduitErrors.h @@ -0,0 +1,46 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef MEDIA_SESSION_ERRORS_H_ +#define MEDIA_SESSION_ERRORS_H_ + +namespace mozilla { +enum MediaConduitErrorCode { + kMediaConduitNoError = 0, // 0 for Success,greater than 0 imples error + kMediaConduitSessionNotInited = + 10100, // Session not initialized.10100 serves as + // base for the conduit errors + kMediaConduitMalformedArgument, // Malformed input to Conduit API + kMediaConduitCaptureError, // WebRTC capture APIs failed + kMediaConduitInvalidSendCodec, // Wrong Send codec + kMediaConduitInvalidReceiveCodec, // Wrong Recv Codec + kMediaConduitCodecInUse, // Already applied Codec + kMediaConduitInvalidRenderer, // Null or Wrong Renderer object + kMediaConduitRendererFail, // Add Render called multiple times + kMediaConduitSendingAlready, // Engine already trasmitting + kMediaConduitReceivingAlready, // Engine already receiving + kMediaConduitTransportRegistrationFail, // Null or wrong transport interface + kMediaConduitInvalidTransport, // Null or wrong transport interface + kMediaConduitChannelError, // Configuration Error + kMediaConduitSocketError, // Media Engine transport socket error + kMediaConduitRTPRTCPModuleError, // Couldn't start RTP/RTCP processing + kMediaConduitRTPProcessingFailed, // Processing incoming RTP frame failed + kMediaConduitUnknownError, // More information can be found in logs + kMediaConduitExternalRecordingError, // Couldn't start external recording + kMediaConduitRecordingError, // Runtime recording error + kMediaConduitExternalPlayoutError, // Couldn't start external playout + kMediaConduitPlayoutError, // Runtime playout error + kMediaConduitMTUError, // Can't set MTU + kMediaConduitRTCPStatusError, // Can't set RTCP mode + kMediaConduitKeyFrameRequestError, // Can't set KeyFrameRequest mode + kMediaConduitNACKStatusError, // Can't set NACK mode + kMediaConduitTMMBRStatusError, // Can't set TMMBR mode + kMediaConduitFECStatusError, // Can't set FEC mode + kMediaConduitHybridNACKFECStatusError, // Can't set Hybrid NACK / FEC mode + kMediaConduitVideoSendStreamError // WebRTC video send stream failure +}; + +} + +#endif diff --git a/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.cpp b/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.cpp new file mode 100644 index 0000000000..c0718739e9 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.cpp @@ -0,0 +1,151 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "MediaConduitInterface.h" + +#include "nsTArray.h" +#include "mozilla/Assertions.h" +#include "MainThreadUtils.h" +#include "SystemTime.h" + +#include "system_wrappers/include/clock.h" + +namespace mozilla { + +void MediaSessionConduit::GetRtpSources( + nsTArray& outSources) const { + MOZ_ASSERT(NS_IsMainThread()); + if (mSourcesUpdateNeeded) { + UpdateRtpSources(GetUpstreamRtpSources()); + OnSourcesUpdated(); + } + outSources.Clear(); + for (auto& [key, entry] : mSourcesCache) { + (void)key; + outSources.AppendElement(entry); + } + + struct TimestampComparator { + bool LessThan(const dom::RTCRtpSourceEntry& aLhs, + const dom::RTCRtpSourceEntry& aRhs) const { + // Sort descending! + return aLhs.mTimestamp > aRhs.mTimestamp; + } + + bool Equals(const dom::RTCRtpSourceEntry& aLhs, + const dom::RTCRtpSourceEntry& aRhs) const { + return aLhs.mTimestamp == aRhs.mTimestamp; + } + }; + + // *sigh* We have to re-sort this by JS timestamp; we can run into cases + // where the libwebrtc timestamps are not in exactly the same order as JS + // timestamps due to clock differences (wibbly-wobbly, timey-wimey stuff) + outSources.Sort(TimestampComparator()); +} + +static double rtpToDomAudioLevel(uint8_t aAudioLevel) { + if (aAudioLevel == 127) { + // Spec indicates that a value of 127 should be set to 0 + return 0; + } + + // All other values are calculated as 10^(-rfc_level/20) + return std::pow(10, -aAudioLevel / 20.0); +} + +void MediaSessionConduit::UpdateRtpSources( + const std::vector& aSources) const { + MOZ_ASSERT(NS_IsMainThread()); + // Empty out the cache; we'll copy things back as needed + auto cache = std::move(mSourcesCache); + + for (const auto& source : aSources) { + SourceKey key(source); + auto it = cache.find(key); + if (it != cache.end()) { + // This source entry was already in the cache, and should continue to be + // present in exactly the same form as before. This means we do _not_ + // want to perform the timestamp adjustment again, since it might yield a + // slightly different result. This is why we copy this entry from the old + // cache instead of simply rebuilding it, and is also why we key the + // cache based on timestamp (keying the cache based on timestamp also + // gets us the ordering we want, conveniently). + mSourcesCache[key] = it->second; + continue; + } + + // This is something we did not already have in the cache. + dom::RTCRtpSourceEntry domEntry; + domEntry.mSource = source.source_id(); + switch (source.source_type()) { + case webrtc::RtpSourceType::SSRC: + domEntry.mSourceType = dom::RTCRtpSourceEntryType::Synchronization; + break; + case webrtc::RtpSourceType::CSRC: + domEntry.mSourceType = dom::RTCRtpSourceEntryType::Contributing; + break; + default: + MOZ_CRASH("Unexpected RTCRtpSourceEntryType"); + } + + if (source.audio_level()) { + domEntry.mAudioLevel.Construct(rtpToDomAudioLevel(*source.audio_level())); + } + + // These timestamps are always **rounded** to milliseconds. That means they + // can jump up to half a millisecond into the future. We compensate for that + // here so that things seem consistent to js. + domEntry.mTimestamp = GetTimestampMaker().ReduceRealtimePrecision( + webrtc::Timestamp::Millis(source.timestamp_ms()) - + webrtc::TimeDelta::Micros(500)); + domEntry.mRtpTimestamp = source.rtp_timestamp(); + mSourcesCache[key] = domEntry; + } +} + +void MediaSessionConduit::OnSourcesUpdated() const { + MOZ_ASSERT(NS_IsMainThread()); + MOZ_ASSERT(mSourcesUpdateNeeded); + mSourcesUpdateNeeded = false; + // Reset the updateNeeded flag and clear the cache in a direct task, i.e., + // as soon as the current task has finished. + AbstractThread::GetCurrent()->TailDispatcher().AddDirectTask( + NS_NewRunnableFunction( + __func__, [this, self = RefPtr(this)] { + mSourcesUpdateNeeded = true; + mSourcesCache.clear(); + })); +} + +void MediaSessionConduit::InsertAudioLevelForContributingSource( + const uint32_t aCsrcSource, const int64_t aTimestamp, + const uint32_t aRtpTimestamp, const bool aHasAudioLevel, + const uint8_t aAudioLevel) { + MOZ_ASSERT(NS_IsMainThread()); + + if (mSourcesUpdateNeeded) { + OnSourcesUpdated(); + } + + dom::RTCRtpSourceEntry domEntry; + domEntry.mSource = aCsrcSource; + domEntry.mSourceType = dom::RTCRtpSourceEntryType::Contributing; + domEntry.mTimestamp = aTimestamp; + domEntry.mRtpTimestamp = aRtpTimestamp; + if (aHasAudioLevel) { + domEntry.mAudioLevel.Construct(rtpToDomAudioLevel(aAudioLevel)); + } + + webrtc::Timestamp libwebrtcNow = GetTimestampMaker().GetNowRealtime(); + double jsNow = GetTimestampMaker().ReduceRealtimePrecision(libwebrtcNow); + double ago = jsNow - aTimestamp; + webrtc::Timestamp convertedTimestamp = + libwebrtcNow - webrtc::TimeDelta::Millis(ago); + + SourceKey key(convertedTimestamp.ms(), aCsrcSource); + mSourcesCache[key] = domEntry; +} + +} // namespace mozilla diff --git a/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.h b/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.h new file mode 100644 index 0000000000..e7a9d70054 --- /dev/null +++ b/dom/media/webrtc/libwebrtcglue/MediaConduitInterface.h @@ -0,0 +1,493 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef MEDIA_CONDUIT_ABSTRACTION_ +#define MEDIA_CONDUIT_ABSTRACTION_ + +#include +#include +#include + +#include "CodecConfig.h" +#include "ImageContainer.h" +#include "jsapi/RTCStatsReport.h" +#include "MediaConduitErrors.h" +#include "mozilla/media/MediaUtils.h" +#include "mozilla/MozPromise.h" +#include "VideoTypes.h" +#include "WebrtcVideoCodecFactory.h" +#include "nsTArray.h" +#include "mozilla/dom/RTCRtpSourcesBinding.h" +#include "PerformanceRecorder.h" +#include "transport/mediapacket.h" + +// libwebrtc includes +#include "api/audio/audio_frame.h" +#include "api/call/transport.h" +#include "api/rtp_headers.h" +#include "api/rtp_parameters.h" +#include "api/transport/rtp/rtp_source.h" +#include "api/video/video_frame_buffer.h" +#include "call/audio_receive_stream.h" +#include "call/audio_send_stream.h" +#include "call/call_basic_stats.h" +#include "call/video_receive_stream.h" +#include "call/video_send_stream.h" +#include "rtc_base/copy_on_write_buffer.h" + +namespace webrtc { +class VideoFrame; +} + +namespace mozilla { +namespace dom { +struct RTCRtpSourceEntry; +} + +namespace dom { +struct RTCRtpSourceEntry; +} + +enum class MediaSessionConduitLocalDirection : int { kSend, kRecv }; + +class VideoConduitControlInterface; +class AudioConduitControlInterface; +class VideoSessionConduit; +class AudioSessionConduit; +class WebrtcCallWrapper; + +using RtpExtList = std::vector; +using Ssrc = uint32_t; +using Ssrcs = std::vector; + +/** + * 1. Abstract renderer for video data + * 2. This class acts as abstract interface between the video-engine and + * video-engine agnostic renderer implementation. + * 3. Concrete implementation of this interface is responsible for + * processing and/or rendering the obtained raw video frame to appropriate + * output , say,