/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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 "MediaDecoder.h" #include "mozilla/FloatingPoint.h" #include "mozilla/MathAlgorithms.h" #include <limits> #include "nsIObserver.h" #include "nsTArray.h" #include "VideoUtils.h" #include "MediaDecoderStateMachine.h" #include "ImageContainer.h" #include "MediaResource.h" #include "VideoFrameContainer.h" #include "nsError.h" #include "mozilla/Preferences.h" #include "mozilla/StaticPtr.h" #include "nsIMemoryReporter.h" #include "nsComponentManagerUtils.h" #include <algorithm> #include "MediaShutdownManager.h" #include "AudioChannelService.h" #include "mozilla/dom/AudioTrack.h" #include "mozilla/dom/AudioTrackList.h" #include "mozilla/dom/HTMLMediaElement.h" #include "mozilla/dom/Promise.h" #include "mozilla/dom/VideoTrack.h" #include "mozilla/dom/VideoTrackList.h" #include "nsPrintfCString.h" #include "GMPService.h" #include "Layers.h" #include "mozilla/layers/ShadowLayers.h" using namespace mozilla::dom; using namespace mozilla::layers; using namespace mozilla::media; namespace mozilla { // The amount of instability we tollerate in calls to // MediaDecoder::UpdateEstimatedMediaDuration(); changes of duration // less than this are ignored, as they're assumed to be the result of // instability in the duration estimation. static const uint64_t ESTIMATED_DURATION_FUZZ_FACTOR_USECS = USECS_PER_S / 2; // avoid redefined macro in unified build #undef DECODER_LOG #undef DUMP_LOG LazyLogModule gMediaDecoderLog("MediaDecoder"); #define DECODER_LOG(x, ...) \ MOZ_LOG(gMediaDecoderLog, LogLevel::Debug, ("Decoder=%p " x, this, ##__VA_ARGS__)) #define DUMP_LOG(x, ...) \ NS_DebugBreak(NS_DEBUG_WARNING, nsPrintfCString("Decoder=%p " x, this, ##__VA_ARGS__).get(), nullptr, nullptr, -1) static const char* ToPlayStateStr(MediaDecoder::PlayState aState) { switch (aState) { case MediaDecoder::PLAY_STATE_START: return "START"; case MediaDecoder::PLAY_STATE_LOADING: return "LOADING"; case MediaDecoder::PLAY_STATE_PAUSED: return "PAUSED"; case MediaDecoder::PLAY_STATE_PLAYING: return "PLAYING"; case MediaDecoder::PLAY_STATE_ENDED: return "ENDED"; case MediaDecoder::PLAY_STATE_SHUTDOWN: return "SHUTDOWN"; default: MOZ_ASSERT_UNREACHABLE("Invalid playState."); } return "UNKNOWN"; } class MediaMemoryTracker : public nsIMemoryReporter { virtual ~MediaMemoryTracker(); NS_DECL_THREADSAFE_ISUPPORTS NS_DECL_NSIMEMORYREPORTER MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf); MediaMemoryTracker(); void InitMemoryReporter(); static StaticRefPtr<MediaMemoryTracker> sUniqueInstance; static MediaMemoryTracker* UniqueInstance() { if (!sUniqueInstance) { sUniqueInstance = new MediaMemoryTracker(); sUniqueInstance->InitMemoryReporter(); } return sUniqueInstance; } typedef nsTArray<MediaDecoder*> DecodersArray; static DecodersArray& Decoders() { return UniqueInstance()->mDecoders; } DecodersArray mDecoders; public: static void AddMediaDecoder(MediaDecoder* aDecoder) { Decoders().AppendElement(aDecoder); } static void RemoveMediaDecoder(MediaDecoder* aDecoder) { DecodersArray& decoders = Decoders(); decoders.RemoveElement(aDecoder); if (decoders.IsEmpty()) { sUniqueInstance = nullptr; } } }; StaticRefPtr<MediaMemoryTracker> MediaMemoryTracker::sUniqueInstance; #if defined(PR_LOGGING) LazyLogModule gMediaTimerLog("MediaTimer"); LazyLogModule gMediaSampleLog("MediaSample"); #endif void MediaDecoder::InitStatics() { MOZ_ASSERT(NS_IsMainThread()); // Eagerly init gMediaDecoderLog to work around bug 1415441. MOZ_LOG(gMediaDecoderLog, LogLevel::Info, ("MediaDecoder::InitStatics")); } NS_IMPL_ISUPPORTS(MediaMemoryTracker, nsIMemoryReporter) NS_IMPL_ISUPPORTS0(MediaDecoder) void MediaDecoder::ResourceCallback::Connect(MediaDecoder* aDecoder) { MOZ_ASSERT(NS_IsMainThread()); mDecoder = aDecoder; mTimer = do_CreateInstance("@mozilla.org/timer;1"); } void MediaDecoder::ResourceCallback::Disconnect() { MOZ_ASSERT(NS_IsMainThread()); mDecoder = nullptr; mTimer->Cancel(); mTimer = nullptr; } MediaDecoderOwner* MediaDecoder::ResourceCallback::GetMediaOwner() const { MOZ_ASSERT(NS_IsMainThread()); return mDecoder ? mDecoder->mOwner : nullptr; } void MediaDecoder::ResourceCallback::SetInfinite(bool aInfinite) { MOZ_ASSERT(NS_IsMainThread()); if (mDecoder) { mDecoder->SetInfinite(aInfinite); } } void MediaDecoder::ResourceCallback::NotifyNetworkError() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoder) { mDecoder->NetworkError(); } } void MediaDecoder::ResourceCallback::NotifyDecodeError() { RefPtr<ResourceCallback> self = this; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([=] () { if (self->mDecoder) { self->mDecoder->DecodeError(NS_ERROR_DOM_MEDIA_FATAL_ERR); } }); AbstractThread::MainThread()->Dispatch(r.forget()); } /* static */ void MediaDecoder::ResourceCallback::TimerCallback(nsITimer* aTimer, void* aClosure) { MOZ_ASSERT(NS_IsMainThread()); ResourceCallback* thiz = static_cast<ResourceCallback*>(aClosure); MOZ_ASSERT(thiz->mDecoder); thiz->mDecoder->NotifyDataArrived(); thiz->mTimerArmed = false; } void MediaDecoder::ResourceCallback::NotifyDataArrived() { MOZ_ASSERT(NS_IsMainThread()); if (!mDecoder || mTimerArmed) { return; } // In situations where these notifications come from stochastic network // activity, we can save significant computation by throttling the // calls to MediaDecoder::NotifyDataArrived() which will update the buffer // ranges of the reader. mTimerArmed = true; mTimer->InitWithFuncCallback( TimerCallback, this, sDelay, nsITimer::TYPE_ONE_SHOT); } void MediaDecoder::ResourceCallback::NotifyBytesDownloaded() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoder) { mDecoder->NotifyBytesDownloaded(); } } void MediaDecoder::ResourceCallback::NotifyDataEnded(nsresult aStatus) { RefPtr<ResourceCallback> self = this; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([=] () { if (!self->mDecoder) { return; } self->mDecoder->NotifyDownloadEnded(aStatus); if (NS_SUCCEEDED(aStatus)) { HTMLMediaElement* element = self->GetMediaOwner()->GetMediaElement(); if (element) { element->DownloadSuspended(); } // NotifySuspendedStatusChanged will tell the element that download // has been suspended "by the cache", which is true since we never // download anything. The element can then transition to HAVE_ENOUGH_DATA. self->mDecoder->NotifySuspendedStatusChanged(); } }); AbstractThread::MainThread()->Dispatch(r.forget()); } void MediaDecoder::ResourceCallback::NotifyPrincipalChanged() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoder) { mDecoder->NotifyPrincipalChanged(); } } void MediaDecoder::ResourceCallback::NotifySuspendedStatusChanged() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoder) { mDecoder->NotifySuspendedStatusChanged(); } } void MediaDecoder::ResourceCallback::NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) { RefPtr<ResourceCallback> self = this; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([=] () { if (self->mDecoder) { self->mDecoder->NotifyBytesConsumed(aBytes, aOffset); } }); AbstractThread::MainThread()->Dispatch(r.forget()); } void MediaDecoder::NotifyOwnerActivityChanged(bool aIsVisible) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); SetElementVisibility(aIsVisible); MediaDecoderOwner* owner = GetOwner(); NS_ENSURE_TRUE_VOID(owner); dom::HTMLMediaElement* element = owner->GetMediaElement(); NS_ENSURE_TRUE_VOID(element); RefPtr<LayerManager> layerManager = nsContentUtils::LayerManagerForDocument(element->OwnerDoc()); NS_ENSURE_TRUE_VOID(layerManager); RefPtr<KnowsCompositor> knowsCompositor = layerManager->AsShadowForwarder(); mCompositorUpdatedEvent.Notify(knowsCompositor); } void MediaDecoder::Pause() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); if (mPlayState == PLAY_STATE_LOADING || IsEnded()) { mNextState = PLAY_STATE_PAUSED; return; } ChangeState(PLAY_STATE_PAUSED); } void MediaDecoder::SetVolume(double aVolume) { MOZ_ASSERT(NS_IsMainThread()); mVolume = aVolume; } void MediaDecoder::AddOutputStream(ProcessedMediaStream* aStream, TrackID aNextAvailableTrackID, bool aFinishWhenEnded) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mDecoderStateMachine, "Must be called after Load()."); mDecoderStateMachine->AddOutputStream( aStream, aNextAvailableTrackID, aFinishWhenEnded); } void MediaDecoder::RemoveOutputStream(MediaStream* aStream) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mDecoderStateMachine, "Must be called after Load()."); mDecoderStateMachine->RemoveOutputStream(aStream); } TrackID MediaDecoder::NextAvailableTrackIDFor(MediaStream* aOutputStream) const { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mDecoderStateMachine, "Must be called after Load()."); return mDecoderStateMachine->NextAvailableTrackIDFor(aOutputStream); } double MediaDecoder::GetDuration() { MOZ_ASSERT(NS_IsMainThread()); return mDuration; } AbstractCanonical<media::NullableTimeUnit>* MediaDecoder::CanonicalDurationOrNull() { MOZ_ASSERT(mDecoderStateMachine); return mDecoderStateMachine->CanonicalDuration(); } void MediaDecoder::SetInfinite(bool aInfinite) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mInfiniteStream = aInfinite; DurationChanged(); } bool MediaDecoder::IsInfinite() const { MOZ_ASSERT(NS_IsMainThread()); return mInfiniteStream; } #define INIT_MIRROR(name, val) \ name(AbstractThread::MainThread(), val, "MediaDecoder::" #name " (Mirror)") #define INIT_CANONICAL(name, val) \ name(AbstractThread::MainThread(), val, "MediaDecoder::" #name " (Canonical)") MediaDecoder::MediaDecoder(MediaDecoderOwner* aOwner) : mWatchManager(this, AbstractThread::MainThread()) , mLogicalPosition(0.0) , mDuration(std::numeric_limits<double>::quiet_NaN()) , mResourceCallback(new ResourceCallback()) , mCDMProxyPromise(mCDMProxyPromiseHolder.Ensure(__func__)) , mIgnoreProgressData(false) , mInfiniteStream(false) , mOwner(aOwner) , mFrameStats(new FrameStatistics()) , mVideoFrameContainer(aOwner->GetVideoFrameContainer()) , mPlaybackStatistics(new MediaChannelStatistics()) , mPinnedForSeek(false) , mMinimizePreroll(false) , mMediaTracksConstructed(false) , mFiredMetadataLoaded(false) , mElementVisible(!aOwner->IsHidden()) , mForcedHidden(false) , INIT_MIRROR(mStateMachineIsShutdown, true) , INIT_MIRROR(mBuffered, TimeIntervals()) , INIT_MIRROR(mNextFrameStatus, MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE) , INIT_MIRROR(mCurrentPosition, 0) , INIT_MIRROR(mStateMachineDuration, NullableTimeUnit()) , INIT_MIRROR(mPlaybackPosition, 0) , INIT_MIRROR(mIsAudioDataAudible, false) , INIT_CANONICAL(mVolume, 0.0) , INIT_CANONICAL(mPreservesPitch, true) , INIT_CANONICAL(mEstimatedDuration, NullableTimeUnit()) , INIT_CANONICAL(mExplicitDuration, Maybe<double>()) , INIT_CANONICAL(mPlayState, PLAY_STATE_LOADING) , INIT_CANONICAL(mNextState, PLAY_STATE_PAUSED) , INIT_CANONICAL(mLogicallySeeking, false) , INIT_CANONICAL(mSameOriginMedia, false) , INIT_CANONICAL(mMediaPrincipalHandle, PRINCIPAL_HANDLE_NONE) , INIT_CANONICAL(mPlaybackBytesPerSecond, 0.0) , INIT_CANONICAL(mPlaybackRateReliable, true) , INIT_CANONICAL(mDecoderPosition, 0) , INIT_CANONICAL(mIsVisible, !aOwner->IsHidden()) { MOZ_COUNT_CTOR(MediaDecoder); MOZ_ASSERT(NS_IsMainThread()); MediaMemoryTracker::AddMediaDecoder(this); mAudioChannel = AudioChannelService::GetDefaultAudioChannel(); mResourceCallback->Connect(this); // // Initialize watchers. // // mDuration mWatchManager.Watch(mStateMachineDuration, &MediaDecoder::DurationChanged); // mStateMachineIsShutdown mWatchManager.Watch(mStateMachineIsShutdown, &MediaDecoder::ShutdownBitChanged); // readyState mWatchManager.Watch(mPlayState, &MediaDecoder::UpdateReadyState); mWatchManager.Watch(mNextFrameStatus, &MediaDecoder::UpdateReadyState); // ReadyState computation depends on MediaDecoder::CanPlayThrough, which // depends on the download rate. mWatchManager.Watch(mBuffered, &MediaDecoder::UpdateReadyState); // mLogicalPosition mWatchManager.Watch(mCurrentPosition, &MediaDecoder::UpdateLogicalPosition); mWatchManager.Watch(mPlayState, &MediaDecoder::UpdateLogicalPosition); mWatchManager.Watch(mLogicallySeeking, &MediaDecoder::UpdateLogicalPosition); // mIgnoreProgressData mWatchManager.Watch(mLogicallySeeking, &MediaDecoder::SeekingChanged); mWatchManager.Watch(mIsAudioDataAudible, &MediaDecoder::NotifyAudibleStateChanged); MediaShutdownManager::InitStatics(); } #undef INIT_MIRROR #undef INIT_CANONICAL void MediaDecoder::Shutdown() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); // Unwatch all watch targets to prevent further notifications. mWatchManager.Shutdown(); mResourceCallback->Disconnect(); mCDMProxyPromiseHolder.RejectIfExists(true, __func__); DiscardOngoingSeekIfExists(); // This changes the decoder state to SHUTDOWN and does other things // necessary to unblock the state machine thread if it's blocked, so // the asynchronous shutdown in nsDestroyStateMachine won't deadlock. if (mDecoderStateMachine) { mTimedMetadataListener.Disconnect(); mMetadataLoadedListener.Disconnect(); mFirstFrameLoadedListener.Disconnect(); mOnPlaybackEvent.Disconnect(); mOnPlaybackErrorEvent.Disconnect(); mOnDecoderDoctorEvent.Disconnect(); mOnMediaNotSeekable.Disconnect(); mDecoderStateMachine->BeginShutdown() ->Then(AbstractThread::MainThread(), __func__, this, &MediaDecoder::FinishShutdown, &MediaDecoder::FinishShutdown); } else { // Ensure we always unregister asynchronously in order not to disrupt // the hashtable iterating in MediaShutdownManager::Shutdown(). RefPtr<MediaDecoder> self = this; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([self] () { self->mVideoFrameContainer = nullptr; MediaShutdownManager::Instance().Unregister(self); }); AbstractThread::MainThread()->Dispatch(r.forget()); } // Force any outstanding seek and byterange requests to complete // to prevent shutdown from deadlocking. if (mResource) { mResource->Close(); } ChangeState(PLAY_STATE_SHUTDOWN); mOwner = nullptr; } void MediaDecoder::NotifyXPCOMShutdown() { MOZ_ASSERT(NS_IsMainThread()); if (auto owner = GetOwner()) { owner->NotifyXPCOMShutdown(); } MOZ_DIAGNOSTIC_ASSERT(IsShutdown()); // Don't cause grief to release builds by ensuring Shutdown() // is always called during shutdown phase. if (!IsShutdown()) { Shutdown(); } } MediaDecoder::~MediaDecoder() { MOZ_ASSERT(NS_IsMainThread()); MediaMemoryTracker::RemoveMediaDecoder(this); UnpinForSeek(); MOZ_COUNT_DTOR(MediaDecoder); } void MediaDecoder::OnPlaybackEvent(MediaEventType aEvent) { switch (aEvent) { case MediaEventType::PlaybackStarted: mPlaybackStatistics->Start(); break; case MediaEventType::PlaybackStopped: mPlaybackStatistics->Stop(); ComputePlaybackRate(); break; case MediaEventType::PlaybackEnded: PlaybackEnded(); break; case MediaEventType::SeekStarted: SeekingStarted(); break; case MediaEventType::Invalidate: Invalidate(); break; case MediaEventType::EnterVideoSuspend: mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("mozentervideosuspend")); break; case MediaEventType::ExitVideoSuspend: mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("mozexitvideosuspend")); break; } } void MediaDecoder::OnPlaybackErrorEvent(const MediaResult& aError) { DecodeError(aError); } void MediaDecoder::OnDecoderDoctorEvent(DecoderDoctorEvent aEvent) { MOZ_ASSERT(NS_IsMainThread()); // OnDecoderDoctorEvent is disconnected at shutdown time. MOZ_ASSERT(!IsShutdown()); HTMLMediaElement* element = mOwner->GetMediaElement(); if (!element) { return; } nsIDocument* doc = element->OwnerDoc(); if (!doc) { return; } DecoderDoctorDiagnostics diags; diags.StoreEvent(doc, aEvent, __func__); } void MediaDecoder::FinishShutdown() { MOZ_ASSERT(NS_IsMainThread()); mDecoderStateMachine->BreakCycles(); SetStateMachine(nullptr); mVideoFrameContainer = nullptr; MediaShutdownManager::Instance().Unregister(this); } MediaResourceCallback* MediaDecoder::GetResourceCallback() const { return mResourceCallback; } nsresult MediaDecoder::OpenResource(nsIStreamListener** aStreamListener) { MOZ_ASSERT(NS_IsMainThread()); if (aStreamListener) { *aStreamListener = nullptr; } return mResource->Open(aStreamListener); } nsresult MediaDecoder::Load(nsIStreamListener** aStreamListener) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mResource, "Can't load without a MediaResource"); nsresult rv = MediaShutdownManager::Instance().Register(this); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } rv = OpenResource(aStreamListener); NS_ENSURE_SUCCESS(rv, rv); SetStateMachine(CreateStateMachine()); NS_ENSURE_TRUE(GetStateMachine(), NS_ERROR_FAILURE); return InitializeStateMachine(); } nsresult MediaDecoder::InitializeStateMachine() { MOZ_ASSERT(NS_IsMainThread()); NS_ASSERTION(mDecoderStateMachine, "Cannot initialize null state machine!"); nsresult rv = mDecoderStateMachine->Init(this); NS_ENSURE_SUCCESS(rv, rv); // If some parameters got set before the state machine got created, // set them now SetStateMachineParameters(); return NS_OK; } void MediaDecoder::SetStateMachineParameters() { MOZ_ASSERT(NS_IsMainThread()); if (mMinimizePreroll) { mDecoderStateMachine->DispatchMinimizePrerollUntilPlaybackStarts(); } if (mPlaybackRate != 1 && mPlaybackRate != 0) { mDecoderStateMachine->DispatchSetPlaybackRate(mPlaybackRate); } mTimedMetadataListener = mDecoderStateMachine->TimedMetadataEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::OnMetadataUpdate); mMetadataLoadedListener = mDecoderStateMachine->MetadataLoadedEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::MetadataLoaded); mFirstFrameLoadedListener = mDecoderStateMachine->FirstFrameLoadedEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::FirstFrameLoaded); mOnPlaybackEvent = mDecoderStateMachine->OnPlaybackEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::OnPlaybackEvent); mOnPlaybackErrorEvent = mDecoderStateMachine->OnPlaybackErrorEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::OnPlaybackErrorEvent); mOnDecoderDoctorEvent = mDecoderStateMachine->OnDecoderDoctorEvent().Connect( AbstractThread::MainThread(), this, &MediaDecoder::OnDecoderDoctorEvent); mOnMediaNotSeekable = mDecoderStateMachine->OnMediaNotSeekable().Connect( AbstractThread::MainThread(), this, &MediaDecoder::OnMediaNotSeekable); } void MediaDecoder::SetMinimizePrerollUntilPlaybackStarts() { MOZ_ASSERT(NS_IsMainThread()); DECODER_LOG("SetMinimizePrerollUntilPlaybackStarts()"); mMinimizePreroll = true; // This needs to be called before we init the state machine, otherwise it will // have no effect. MOZ_DIAGNOSTIC_ASSERT(!mDecoderStateMachine); } nsresult MediaDecoder::Play() { MOZ_ASSERT(NS_IsMainThread()); NS_ASSERTION(mDecoderStateMachine != nullptr, "Should have state machine."); if (mPlaybackRate == 0) { return NS_OK; } if (IsEnded()) { return Seek(0, SeekTarget::PrevSyncPoint); } else if (mPlayState == PLAY_STATE_LOADING) { mNextState = PLAY_STATE_PLAYING; return NS_OK; } ChangeState(PLAY_STATE_PLAYING); return NS_OK; } nsresult MediaDecoder::Seek(double aTime, SeekTarget::Type aSeekType, dom::Promise* aPromise /*=nullptr*/) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); MOZ_ASSERT(aTime >= 0.0, "Cannot seek to a negative value."); int64_t timeUsecs = TimeUnit::FromSeconds(aTime).ToMicroseconds(); mLogicalPosition = aTime; mLogicallySeeking = true; SeekTarget target = SeekTarget(timeUsecs, aSeekType); CallSeek(target, aPromise); if (mPlayState == PLAY_STATE_ENDED) { PinForSeek(); ChangeState(mOwner->GetPaused() ? PLAY_STATE_PAUSED : PLAY_STATE_PLAYING); } return NS_OK; } void MediaDecoder::AsyncResolveSeekDOMPromiseIfExists() { MOZ_ASSERT(NS_IsMainThread()); if (mSeekDOMPromise) { RefPtr<dom::Promise> promise = mSeekDOMPromise; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([=] () { promise->MaybeResolveWithUndefined(); }); AbstractThread::MainThread()->Dispatch(r.forget()); mSeekDOMPromise = nullptr; } } void MediaDecoder::AsyncRejectSeekDOMPromiseIfExists() { MOZ_ASSERT(NS_IsMainThread()); if (mSeekDOMPromise) { RefPtr<dom::Promise> promise = mSeekDOMPromise; nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([=] () { promise->MaybeReject(NS_ERROR_DOM_ABORT_ERR); }); AbstractThread::MainThread()->Dispatch(r.forget()); mSeekDOMPromise = nullptr; } } void MediaDecoder::DiscardOngoingSeekIfExists() { MOZ_ASSERT(NS_IsMainThread()); mSeekRequest.DisconnectIfExists(); AsyncRejectSeekDOMPromiseIfExists(); } void MediaDecoder::CallSeek(const SeekTarget& aTarget, dom::Promise* aPromise) { MOZ_ASSERT(NS_IsMainThread()); DiscardOngoingSeekIfExists(); mSeekDOMPromise = aPromise; mSeekRequest.Begin( mDecoderStateMachine->InvokeSeek(aTarget) ->Then(AbstractThread::MainThread(), __func__, this, &MediaDecoder::OnSeekResolved, &MediaDecoder::OnSeekRejected)); } double MediaDecoder::GetCurrentTime() { MOZ_ASSERT(NS_IsMainThread()); return mLogicalPosition; } already_AddRefed<nsIPrincipal> MediaDecoder::GetCurrentPrincipal() { MOZ_ASSERT(NS_IsMainThread()); return mResource ? mResource->GetCurrentPrincipal() : nullptr; } void MediaDecoder::OnMetadataUpdate(TimedMetadata&& aMetadata) { MOZ_ASSERT(NS_IsMainThread()); RemoveMediaTracks(); MetadataLoaded(nsAutoPtr<MediaInfo>(new MediaInfo(*aMetadata.mInfo)), Move(aMetadata.mTags), MediaDecoderEventVisibility::Observable); FirstFrameLoaded(Move(aMetadata.mInfo), MediaDecoderEventVisibility::Observable); } void MediaDecoder::MetadataLoaded(nsAutoPtr<MediaInfo> aInfo, nsAutoPtr<MetadataTags> aTags, MediaDecoderEventVisibility aEventVisibility) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); DECODER_LOG("MetadataLoaded, channels=%u rate=%u hasAudio=%d hasVideo=%d", aInfo->mAudio.mChannels, aInfo->mAudio.mRate, aInfo->HasAudio(), aInfo->HasVideo()); mMediaSeekable = aInfo->mMediaSeekable; mMediaSeekableOnlyInBufferedRanges = aInfo->mMediaSeekableOnlyInBufferedRanges; mInfo = aInfo.forget(); ConstructMediaTracks(); // Make sure the element and the frame (if any) are told about // our new size. if (aEventVisibility != MediaDecoderEventVisibility::Suppressed) { mFiredMetadataLoaded = true; mOwner->MetadataLoaded(mInfo, nsAutoPtr<const MetadataTags>(aTags.forget())); } // Invalidate() will end up calling mOwner->UpdateMediaSize with the last // dimensions retrieved from the video frame container. The video frame // container contains more up to date dimensions than aInfo. // So we call Invalidate() after calling mOwner->MetadataLoaded to ensure // the media element has the latest dimensions. Invalidate(); } const char* MediaDecoder::PlayStateStr() { MOZ_ASSERT(NS_IsMainThread()); return ToPlayStateStr(mPlayState); } void MediaDecoder::FirstFrameLoaded(nsAutoPtr<MediaInfo> aInfo, MediaDecoderEventVisibility aEventVisibility) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); DECODER_LOG("FirstFrameLoaded, channels=%u rate=%u hasAudio=%d hasVideo=%d mPlayState=%s", aInfo->mAudio.mChannels, aInfo->mAudio.mRate, aInfo->HasAudio(), aInfo->HasVideo(), PlayStateStr()); mInfo = aInfo.forget(); Invalidate(); // This can run cache callbacks. mResource->EnsureCacheUpToDate(); // The element can run javascript via events // before reaching here, so only change the // state if we're still set to the original // loading state. if (mPlayState == PLAY_STATE_LOADING) { ChangeState(mNextState); } // Run NotifySuspendedStatusChanged now to give us a chance to notice // that autoplay should run. NotifySuspendedStatusChanged(); // mOwner->FirstFrameLoaded() might call us back. Put it at the bottom of // this function to avoid unexpected shutdown from reentrant calls. if (aEventVisibility != MediaDecoderEventVisibility::Suppressed) { mOwner->FirstFrameLoaded(); } } void MediaDecoder::NetworkError() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mOwner->NetworkError(); } void MediaDecoder::DecodeError(const MediaResult& aError) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mOwner->DecodeError(aError); } void MediaDecoder::UpdateSameOriginStatus(bool aSameOrigin) { MOZ_ASSERT(NS_IsMainThread()); mSameOriginMedia = aSameOrigin; } bool MediaDecoder::IsSeeking() const { MOZ_ASSERT(NS_IsMainThread()); return mLogicallySeeking; } bool MediaDecoder::OwnerHasError() const { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); return mOwner->HasError(); } class MediaElementGMPCrashHelper : public GMPCrashHelper { public: explicit MediaElementGMPCrashHelper(HTMLMediaElement* aElement) : mElement(aElement) { MOZ_ASSERT(NS_IsMainThread()); // WeakPtr isn't thread safe. } already_AddRefed<nsPIDOMWindowInner> GetPluginCrashedEventTarget() override { MOZ_ASSERT(NS_IsMainThread()); // WeakPtr isn't thread safe. if (!mElement) { return nullptr; } return do_AddRef(mElement->OwnerDoc()->GetInnerWindow()); } private: WeakPtr<HTMLMediaElement> mElement; }; already_AddRefed<GMPCrashHelper> MediaDecoder::GetCrashHelper() { MOZ_ASSERT(NS_IsMainThread()); return mOwner->GetMediaElement() ? MakeAndAddRef<MediaElementGMPCrashHelper>(mOwner->GetMediaElement()) : nullptr; } bool MediaDecoder::IsEnded() const { MOZ_ASSERT(NS_IsMainThread()); return mPlayState == PLAY_STATE_ENDED; } bool MediaDecoder::IsShutdown() const { MOZ_ASSERT(NS_IsMainThread()); return mPlayState == PLAY_STATE_SHUTDOWN; } void MediaDecoder::PlaybackEnded() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); if (mLogicallySeeking || mPlayState == PLAY_STATE_LOADING) { return; } ChangeState(PLAY_STATE_ENDED); InvalidateWithFlags(VideoFrameContainer::INVALIDATE_FORCE); mOwner->PlaybackEnded(); // This must be called after |mOwner->PlaybackEnded()| call above, in order // to fire the required durationchange. if (IsInfinite()) { SetInfinite(false); } } MediaStatistics MediaDecoder::GetStatistics() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mResource); MediaStatistics result; result.mDownloadRate = mResource->GetDownloadRate(&result.mDownloadRateReliable); result.mDownloadPosition = mResource->GetCachedDataEnd(mDecoderPosition); result.mTotalBytes = mResource->GetLength(); result.mPlaybackRate = mPlaybackBytesPerSecond; result.mPlaybackRateReliable = mPlaybackRateReliable; result.mDecoderPosition = mDecoderPosition; result.mPlaybackPosition = mPlaybackPosition; return result; } void MediaDecoder::ComputePlaybackRate() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mResource); int64_t length = mResource->GetLength(); if (!IsNaN(mDuration) && !mozilla::IsInfinite<double>(mDuration) && length >= 0) { mPlaybackRateReliable = true; mPlaybackBytesPerSecond = length / mDuration; return; } bool reliable = false; mPlaybackBytesPerSecond = mPlaybackStatistics->GetRateAtLastStop(&reliable); mPlaybackRateReliable = reliable; } void MediaDecoder::UpdatePlaybackRate() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(mResource); ComputePlaybackRate(); uint32_t rate = mPlaybackBytesPerSecond; if (mPlaybackRateReliable) { // Avoid passing a zero rate rate = std::max(rate, 1u); } else { // Set a minimum rate of 10,000 bytes per second ... sometimes we just // don't have good data rate = std::max(rate, 10000u); } mResource->SetPlaybackRate(rate); } void MediaDecoder::NotifySuspendedStatusChanged() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); if (mResource) { bool suspended = mResource->IsSuspendedByCache(); mOwner->NotifySuspendedByCache(suspended); } } void MediaDecoder::NotifyBytesDownloaded() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); UpdatePlaybackRate(); mOwner->DownloadProgressed(); } void MediaDecoder::NotifyDownloadEnded(nsresult aStatus) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); DECODER_LOG("NotifyDownloadEnded, status=%x", aStatus); if (aStatus == NS_BINDING_ABORTED) { // Download has been cancelled by user. mOwner->LoadAborted(); return; } UpdatePlaybackRate(); if (NS_SUCCEEDED(aStatus)) { // A final progress event will be fired by the MediaResource calling // DownloadSuspended on the element. // Also NotifySuspendedStatusChanged() will be called to update readyState // if download ended with success. } else if (aStatus != NS_BASE_STREAM_CLOSED) { NetworkError(); } } void MediaDecoder::NotifyPrincipalChanged() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); nsCOMPtr<nsIPrincipal> newPrincipal = GetCurrentPrincipal(); mMediaPrincipalHandle = MakePrincipalHandle(newPrincipal); mOwner->NotifyDecoderPrincipalChanged(); } void MediaDecoder::NotifyBytesConsumed(int64_t aBytes, int64_t aOffset) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); if (mIgnoreProgressData) { return; } MOZ_ASSERT(mDecoderStateMachine); if (aOffset >= mDecoderPosition) { mPlaybackStatistics->AddBytes(aBytes); } mDecoderPosition = aOffset + aBytes; } void MediaDecoder::OnSeekResolved(SeekResolveValue aVal) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mSeekRequest.Complete(); bool fireEnded = false; { // An additional seek was requested while the current seek was // in operation. UnpinForSeek(); fireEnded = aVal.mAtEnd; if (aVal.mAtEnd) { ChangeState(PLAY_STATE_ENDED); } mLogicallySeeking = false; } // Ensure logical position is updated after seek. UpdateLogicalPositionInternal(); mOwner->SeekCompleted(); AsyncResolveSeekDOMPromiseIfExists(); if (fireEnded) { mOwner->PlaybackEnded(); } } void MediaDecoder::OnSeekRejected() { MOZ_ASSERT(NS_IsMainThread()); mSeekRequest.Complete(); mLogicallySeeking = false; AsyncRejectSeekDOMPromiseIfExists(); } void MediaDecoder::SeekingStarted() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mOwner->SeekStarted(); } void MediaDecoder::ChangeState(PlayState aState) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown(), "SHUTDOWN is the final state."); if (mNextState == aState) { mNextState = PLAY_STATE_PAUSED; } DECODER_LOG("ChangeState %s => %s", PlayStateStr(), ToPlayStateStr(aState)); mPlayState = aState; if (mPlayState == PLAY_STATE_PLAYING) { ConstructMediaTracks(); } else if (IsEnded()) { RemoveMediaTracks(); } } void MediaDecoder::UpdateLogicalPositionInternal() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); double currentPosition = static_cast<double>(CurrentPosition()) / static_cast<double>(USECS_PER_S); if (mPlayState == PLAY_STATE_ENDED) { currentPosition = std::max(currentPosition, mDuration); } bool logicalPositionChanged = mLogicalPosition != currentPosition; mLogicalPosition = currentPosition; // Invalidate the frame so any video data is displayed. // Do this before the timeupdate event so that if that // event runs JavaScript that queries the media size, the // frame has reflowed and the size updated beforehand. Invalidate(); if (logicalPositionChanged) { FireTimeUpdate(); } } void MediaDecoder::DurationChanged() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); double oldDuration = mDuration; if (IsInfinite()) { mDuration = std::numeric_limits<double>::infinity(); } else if (mExplicitDuration.Ref().isSome()) { mDuration = mExplicitDuration.Ref().ref(); } else if (mStateMachineDuration.Ref().isSome()) { mDuration = mStateMachineDuration.Ref().ref().ToSeconds(); } if (mDuration == oldDuration || IsNaN(mDuration)) { return; } DECODER_LOG("Duration changed to %f", mDuration); // Duration has changed so we should recompute playback rate UpdatePlaybackRate(); // See https://www.w3.org/Bugs/Public/show_bug.cgi?id=28822 for a discussion // of whether we should fire durationchange on explicit infinity. if (mFiredMetadataLoaded && (!mozilla::IsInfinite<double>(mDuration) || mExplicitDuration.Ref().isSome())) { mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("durationchange")); } if (CurrentPosition() > TimeUnit::FromSeconds(mDuration).ToMicroseconds()) { Seek(mDuration, SeekTarget::Accurate); } } void MediaDecoder::SetElementVisibility(bool aIsVisible) { MOZ_ASSERT(NS_IsMainThread()); mElementVisible = aIsVisible; mIsVisible = !mForcedHidden && mElementVisible; } void MediaDecoder::SetForcedHidden(bool aForcedHidden) { MOZ_ASSERT(NS_IsMainThread()); mForcedHidden = aForcedHidden; SetElementVisibility(mElementVisible); } void MediaDecoder::UpdateEstimatedMediaDuration(int64_t aDuration) { MOZ_ASSERT(NS_IsMainThread()); if (mPlayState <= PLAY_STATE_LOADING) { return; } // The duration is only changed if its significantly different than the // the current estimate, as the incoming duration is an estimate and so // often is unstable as more data is read and the estimate is updated. // Can result in a durationchangeevent. aDuration is in microseconds. if (mEstimatedDuration.Ref().isSome() && mozilla::Abs(mEstimatedDuration.Ref().ref().ToMicroseconds() - aDuration) < ESTIMATED_DURATION_FUZZ_FACTOR_USECS) { return; } mEstimatedDuration = Some(TimeUnit::FromMicroseconds(aDuration)); } bool MediaDecoder::IsTransportSeekable() { MOZ_ASSERT(NS_IsMainThread()); return GetResource()->IsTransportSeekable(); } bool MediaDecoder::IsMediaSeekable() { MOZ_ASSERT(NS_IsMainThread()); NS_ENSURE_TRUE(GetStateMachine(), false); return mMediaSeekable; } media::TimeIntervals MediaDecoder::GetSeekable() { MOZ_ASSERT(NS_IsMainThread()); if (IsNaN(GetDuration())) { // We do not have a duration yet, we can't determine the seekable range. return TimeIntervals(); } // We can seek in buffered range if the media is seekable. Also, we can seek // in unbuffered ranges if the transport level is seekable (local file or the // server supports range requests, etc.) or in cue-less WebMs if (mMediaSeekableOnlyInBufferedRanges) { return GetBuffered(); } else if (!IsMediaSeekable()) { return media::TimeIntervals(); } else if (!IsTransportSeekable()) { return GetBuffered(); } else { return media::TimeIntervals( media::TimeInterval(media::TimeUnit::FromMicroseconds(0), IsInfinite() ? media::TimeUnit::FromInfinity() : media::TimeUnit::FromSeconds(GetDuration()))); } } void MediaDecoder::SetFragmentEndTime(double aTime) { MOZ_ASSERT(NS_IsMainThread()); if (mDecoderStateMachine) { mDecoderStateMachine->DispatchSetFragmentEndTime(static_cast<int64_t>(aTime * USECS_PER_S)); } } void MediaDecoder::Suspend() { MOZ_ASSERT(NS_IsMainThread()); if (mResource) { mResource->Suspend(true); } } void MediaDecoder::Resume() { MOZ_ASSERT(NS_IsMainThread()); if (mResource) { mResource->Resume(); } } void MediaDecoder::SetLoadInBackground(bool aLoadInBackground) { MOZ_ASSERT(NS_IsMainThread()); if (mResource) { mResource->SetLoadInBackground(aLoadInBackground); } } void MediaDecoder::SetPlaybackRate(double aPlaybackRate) { MOZ_ASSERT(NS_IsMainThread()); double oldRate = mPlaybackRate; mPlaybackRate = aPlaybackRate; if (aPlaybackRate == 0) { Pause(); return; } if (oldRate == 0 && !mOwner->GetPaused()) { // PlaybackRate is no longer null. // Restart the playback if the media was playing. Play(); } if (mDecoderStateMachine) { mDecoderStateMachine->DispatchSetPlaybackRate(aPlaybackRate); } } void MediaDecoder::SetPreservesPitch(bool aPreservesPitch) { MOZ_ASSERT(NS_IsMainThread()); mPreservesPitch = aPreservesPitch; } void MediaDecoder::ConnectMirrors(MediaDecoderStateMachine* aObject) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(aObject); mStateMachineDuration.Connect(aObject->CanonicalDuration()); mBuffered.Connect(aObject->CanonicalBuffered()); mStateMachineIsShutdown.Connect(aObject->CanonicalIsShutdown()); mNextFrameStatus.Connect(aObject->CanonicalNextFrameStatus()); mCurrentPosition.Connect(aObject->CanonicalCurrentPosition()); mPlaybackPosition.Connect(aObject->CanonicalPlaybackOffset()); mIsAudioDataAudible.Connect(aObject->CanonicalIsAudioDataAudible()); } void MediaDecoder::DisconnectMirrors() { MOZ_ASSERT(NS_IsMainThread()); mStateMachineDuration.DisconnectIfConnected(); mBuffered.DisconnectIfConnected(); mStateMachineIsShutdown.DisconnectIfConnected(); mNextFrameStatus.DisconnectIfConnected(); mCurrentPosition.DisconnectIfConnected(); mPlaybackPosition.DisconnectIfConnected(); mIsAudioDataAudible.DisconnectIfConnected(); } void MediaDecoder::SetStateMachine(MediaDecoderStateMachine* aStateMachine) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT_IF(aStateMachine, !mDecoderStateMachine); mDecoderStateMachine = aStateMachine; if (aStateMachine) { ConnectMirrors(aStateMachine); } else { DisconnectMirrors(); } } ImageContainer* MediaDecoder::GetImageContainer() { return mVideoFrameContainer ? mVideoFrameContainer->GetImageContainer() : nullptr; } void MediaDecoder::InvalidateWithFlags(uint32_t aFlags) { if (mVideoFrameContainer) { mVideoFrameContainer->InvalidateWithFlags(aFlags); } } void MediaDecoder::Invalidate() { if (mVideoFrameContainer) { mVideoFrameContainer->Invalidate(); } } // Constructs the time ranges representing what segments of the media // are buffered and playable. media::TimeIntervals MediaDecoder::GetBuffered() { MOZ_ASSERT(NS_IsMainThread()); return mBuffered.Ref(); } size_t MediaDecoder::SizeOfVideoQueue() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoderStateMachine) { return mDecoderStateMachine->SizeOfVideoQueue(); } return 0; } size_t MediaDecoder::SizeOfAudioQueue() { MOZ_ASSERT(NS_IsMainThread()); if (mDecoderStateMachine) { return mDecoderStateMachine->SizeOfAudioQueue(); } return 0; } void MediaDecoder::AddSizeOfResources(ResourceSizes* aSizes) { MOZ_ASSERT(NS_IsMainThread()); if (GetResource()) { aSizes->mByteSize += GetResource()->SizeOfIncludingThis(aSizes->mMallocSizeOf); } } void MediaDecoder::NotifyDataArrived() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mDataArrivedEvent.Notify(); } // Provide access to the state machine object MediaDecoderStateMachine* MediaDecoder::GetStateMachine() const { MOZ_ASSERT(NS_IsMainThread()); return mDecoderStateMachine; } void MediaDecoder::FireTimeUpdate() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); mOwner->FireTimeUpdate(true); } void MediaDecoder::PinForSeek() { MOZ_ASSERT(NS_IsMainThread()); MediaResource* resource = GetResource(); if (!resource || mPinnedForSeek) { return; } mPinnedForSeek = true; resource->Pin(); } void MediaDecoder::UnpinForSeek() { MOZ_ASSERT(NS_IsMainThread()); MediaResource* resource = GetResource(); if (!resource || !mPinnedForSeek) { return; } mPinnedForSeek = false; resource->Unpin(); } bool MediaDecoder::CanPlayThrough() { MOZ_ASSERT(NS_IsMainThread()); NS_ENSURE_TRUE(mDecoderStateMachine, false); return GetStatistics().CanPlayThrough(); } RefPtr<MediaDecoder::CDMProxyPromise> MediaDecoder::RequestCDMProxy() const { return mCDMProxyPromise; } void MediaDecoder::SetCDMProxy(CDMProxy* aProxy) { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(aProxy); mCDMProxyPromiseHolder.ResolveIfExists(aProxy, __func__); } bool MediaDecoder::IsOpusEnabled() { return Preferences::GetBool("media.opus.enabled"); } bool MediaDecoder::IsOggEnabled() { return Preferences::GetBool("media.ogg.enabled"); } bool MediaDecoder::IsWaveEnabled() { return Preferences::GetBool("media.wave.enabled"); } bool MediaDecoder::IsWebMEnabled() { return Preferences::GetBool("media.webm.enabled"); } NS_IMETHODIMP MediaMemoryTracker::CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData, bool aAnonymize) { int64_t video = 0, audio = 0; // NB: When resourceSizes' ref count goes to 0 the promise will report the // resources memory and finish the asynchronous memory report. RefPtr<MediaDecoder::ResourceSizes> resourceSizes = new MediaDecoder::ResourceSizes(MediaMemoryTracker::MallocSizeOf); nsCOMPtr<nsIHandleReportCallback> handleReport = aHandleReport; nsCOMPtr<nsISupports> data = aData; resourceSizes->Promise()->Then( AbstractThread::MainThread(), __func__, [handleReport, data] (size_t size) { handleReport->Callback( EmptyCString(), NS_LITERAL_CSTRING("explicit/media/resources"), KIND_HEAP, UNITS_BYTES, size, NS_LITERAL_CSTRING("Memory used by media resources including " "streaming buffers, caches, etc."), data); nsCOMPtr<nsIMemoryReporterManager> imgr = do_GetService("@mozilla.org/memory-reporter-manager;1"); if (imgr) { imgr->EndReport(); } }, [] (size_t) { /* unused reject function */ }); DecodersArray& decoders = Decoders(); for (size_t i = 0; i < decoders.Length(); ++i) { MediaDecoder* decoder = decoders[i]; video += decoder->SizeOfVideoQueue(); audio += decoder->SizeOfAudioQueue(); decoder->AddSizeOfResources(resourceSizes); } MOZ_COLLECT_REPORT( "explicit/media/decoded/video", KIND_HEAP, UNITS_BYTES, video, "Memory used by decoded video frames."); MOZ_COLLECT_REPORT( "explicit/media/decoded/audio", KIND_HEAP, UNITS_BYTES, audio, "Memory used by decoded audio chunks."); return NS_OK; } MediaDecoderOwner* MediaDecoder::GetOwner() const { MOZ_ASSERT(NS_IsMainThread()); // mOwner is valid until shutdown. return mOwner; } void MediaDecoder::ConstructMediaTracks() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); if (mMediaTracksConstructed || !mInfo) { return; } HTMLMediaElement* element = mOwner->GetMediaElement(); if (!element) { return; } mMediaTracksConstructed = true; AudioTrackList* audioList = element->AudioTracks(); if (audioList && mInfo->HasAudio()) { const TrackInfo& info = mInfo->mAudio; RefPtr<AudioTrack> track = MediaTrackList::CreateAudioTrack( info.mId, info.mKind, info.mLabel, info.mLanguage, info.mEnabled); audioList->AddTrack(track); } VideoTrackList* videoList = element->VideoTracks(); if (videoList && mInfo->HasVideo()) { const TrackInfo& info = mInfo->mVideo; RefPtr<VideoTrack> track = MediaTrackList::CreateVideoTrack( info.mId, info.mKind, info.mLabel, info.mLanguage); videoList->AddTrack(track); track->SetEnabledInternal(info.mEnabled, MediaTrack::FIRE_NO_EVENTS); } } void MediaDecoder::RemoveMediaTracks() { MOZ_ASSERT(NS_IsMainThread()); MOZ_ASSERT(!IsShutdown()); HTMLMediaElement* element = mOwner->GetMediaElement(); if (!element) { return; } AudioTrackList* audioList = element->AudioTracks(); if (audioList) { audioList->RemoveTracks(); } VideoTrackList* videoList = element->VideoTracks(); if (videoList) { videoList->RemoveTracks(); } element->EndPreCreatedCapturedDecoderTracks(); mMediaTracksConstructed = false; } MediaDecoderOwner::NextFrameStatus MediaDecoder::NextFrameBufferedStatus() { MOZ_ASSERT(NS_IsMainThread()); // Next frame hasn't been decoded yet. // Use the buffered range to consider if we have the next frame available. media::TimeUnit currentPosition = media::TimeUnit::FromMicroseconds(CurrentPosition()); media::TimeInterval interval(currentPosition, currentPosition + media::TimeUnit::FromMicroseconds(DEFAULT_NEXT_FRAME_AVAILABLE_BUFFERED)); return GetBuffered().Contains(interval) ? MediaDecoderOwner::NEXT_FRAME_AVAILABLE : MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE; } void MediaDecoder::DumpDebugInfo() { MOZ_ASSERT(!IsShutdown()); DUMP_LOG("metadata: channels=%u rate=%u hasAudio=%d hasVideo=%d, " "state: mPlayState=%s mdsm=%p", mInfo ? mInfo->mAudio.mChannels : 0, mInfo ? mInfo->mAudio.mRate : 0, mInfo ? mInfo->HasAudio() : 0, mInfo ? mInfo->HasVideo() : 0, PlayStateStr(), GetStateMachine()); nsString str; GetMozDebugReaderData(str); if (!str.IsEmpty()) { DUMP_LOG("reader data:\n%s", NS_ConvertUTF16toUTF8(str).get()); } if (GetStateMachine()) { GetStateMachine()->DumpDebugInfo(); } } void MediaDecoder::NotifyAudibleStateChanged() { MOZ_ASSERT(!IsShutdown()); mOwner->SetAudibleState(mIsAudioDataAudible); } MediaMemoryTracker::MediaMemoryTracker() { } void MediaMemoryTracker::InitMemoryReporter() { RegisterWeakAsyncMemoryReporter(this); } MediaMemoryTracker::~MediaMemoryTracker() { UnregisterWeakMemoryReporter(this); } } // namespace mozilla // avoid redefined macro in unified build #undef DECODER_LOG