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Diffstat (limited to '')
| -rw-r--r-- | dom/media/MediaFormatReader.cpp | 3432 |
1 files changed, 3432 insertions, 0 deletions
diff --git a/dom/media/MediaFormatReader.cpp b/dom/media/MediaFormatReader.cpp new file mode 100644 index 0000000000..5af5027012 --- /dev/null +++ b/dom/media/MediaFormatReader.cpp @@ -0,0 +1,3432 @@ +/* -*- 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/. */ + +#include "MediaFormatReader.h" + +#include <algorithm> +#include <map> +#include <queue> + +#include "AllocationPolicy.h" +#ifdef MOZ_AV1 +# include "AOMDecoder.h" +#endif +#include "DecoderBenchmark.h" +#include "MediaData.h" +#include "MediaDataDecoderProxy.h" +#include "MediaInfo.h" +#include "MP4Decoder.h" +#include "PDMFactory.h" +#include "PerformanceRecorder.h" +#include "VideoFrameContainer.h" +#include "VideoUtils.h" +#include "VPXDecoder.h" +#include "mozilla/AbstractThread.h" +#include "mozilla/CDMProxy.h" +#include "mozilla/ClearOnShutdown.h" +#include "mozilla/NotNull.h" +#include "mozilla/Preferences.h" +#include "mozilla/ProfilerLabels.h" +#include "mozilla/ProfilerMarkers.h" +#include "mozilla/SharedThreadPool.h" +#include "mozilla/StaticPrefs_media.h" +#include "mozilla/TaskQueue.h" +#include "mozilla/Unused.h" +#include "nsContentUtils.h" +#include "nsPrintfCString.h" +#include "nsTHashSet.h" + +using namespace mozilla::media; + +static mozilla::LazyLogModule sFormatDecoderLog("MediaFormatReader"); +mozilla::LazyLogModule gMediaDemuxerLog("MediaDemuxer"); + +#define LOG(arg, ...) \ + DDMOZ_LOG(sFormatDecoderLog, mozilla::LogLevel::Debug, "::%s: " arg, \ + __func__, ##__VA_ARGS__) +#define LOGV(arg, ...) \ + DDMOZ_LOG(sFormatDecoderLog, mozilla::LogLevel::Verbose, "::%s: " arg, \ + __func__, ##__VA_ARGS__) + +#define NS_DispatchToMainThread(...) CompileError_UseAbstractMainThreadInstead + +namespace mozilla { + +typedef void* MediaDataDecoderID; + +/** + * This class tracks shutdown promises to ensure all decoders are shut down + * completely before MFR continues the rest of the shutdown procedure. + */ +class MediaFormatReader::ShutdownPromisePool { + public: + ShutdownPromisePool() + : mOnShutdownComplete(new ShutdownPromise::Private(__func__)) {} + + // Return a promise which will be resolved when all the tracking promises + // are resolved. Note no more promises should be added for tracking once + // this function is called. + RefPtr<ShutdownPromise> Shutdown(); + + // Track a shutdown promise. + void Track(RefPtr<ShutdownPromise> aPromise); + + // Shut down a decoder and track its shutdown promise. + void ShutdownDecoder(already_AddRefed<MediaDataDecoder> aDecoder) { + Track(RefPtr<MediaDataDecoder>(aDecoder)->Shutdown()); + } + + private: + bool mShutdown = false; + const RefPtr<ShutdownPromise::Private> mOnShutdownComplete; + nsTHashSet<RefPtr<ShutdownPromise>> mPromises; +}; + +RefPtr<ShutdownPromise> MediaFormatReader::ShutdownPromisePool::Shutdown() { + MOZ_DIAGNOSTIC_ASSERT(!mShutdown); + mShutdown = true; + if (mPromises.Count() == 0) { + mOnShutdownComplete->Resolve(true, __func__); + } + return mOnShutdownComplete; +} + +void MediaFormatReader::ShutdownPromisePool::Track( + RefPtr<ShutdownPromise> aPromise) { + MOZ_DIAGNOSTIC_ASSERT(!mShutdown); + MOZ_DIAGNOSTIC_ASSERT(!mPromises.Contains(aPromise)); + mPromises.Insert(aPromise); + aPromise->Then(AbstractThread::GetCurrent(), __func__, [aPromise, this]() { + MOZ_DIAGNOSTIC_ASSERT(mPromises.Contains(aPromise)); + mPromises.Remove(aPromise); + if (mShutdown && mPromises.Count() == 0) { + mOnShutdownComplete->Resolve(true, __func__); + } + }); +} + +void MediaFormatReader::DecoderData::ShutdownDecoder() { + MOZ_ASSERT(mOwner->OnTaskQueue()); + + MutexAutoLock lock(mMutex); + + if (!mDecoder) { + // No decoder to shut down. + return; + } + + if (mFlushing) { + // Flush is is in action. Shutdown will be initiated after flush completes. + MOZ_DIAGNOSTIC_ASSERT(mShutdownPromise); + mOwner->mShutdownPromisePool->Track(mShutdownPromise->Ensure(__func__)); + // The order of decoder creation and shutdown is handled by LocalAllocPolicy + // and ShutdownPromisePool. MFR can now reset these members to a fresh state + // and be ready to create new decoders again without explicitly waiting for + // flush/shutdown to complete. + mShutdownPromise = nullptr; + mFlushing = false; + } else { + // No flush is in action. We can shut down the decoder now. + mOwner->mShutdownPromisePool->Track(mDecoder->Shutdown()); + } + + // mShutdownPromisePool will handle the order of decoder shutdown so + // we can forget mDecoder and be ready to create a new one. + mDecoder = nullptr; + mDescription = "shutdown"_ns; + mHasReportedVideoHardwareSupportTelemtry = false; + mOwner->ScheduleUpdate(mType == MediaData::Type::AUDIO_DATA + ? TrackType::kAudioTrack + : TrackType::kVideoTrack); +} + +void MediaFormatReader::DecoderData::Flush() { + AUTO_PROFILER_LABEL("MediaFormatReader::Flush", MEDIA_PLAYBACK); + MOZ_ASSERT(mOwner->OnTaskQueue()); + + if (mFlushing || mFlushed) { + // Flush still pending or already flushed, nothing more to do. + return; + } + mDecodeRequest.DisconnectIfExists(); + mDrainRequest.DisconnectIfExists(); + mDrainState = DrainState::None; + CancelWaitingForKey(); + mOutput.Clear(); + mNumSamplesInput = 0; + mNumSamplesOutput = 0; + mSizeOfQueue = 0; + if (mDecoder) { + TrackType type = mType == MediaData::Type::AUDIO_DATA + ? TrackType::kAudioTrack + : TrackType::kVideoTrack; + mFlushing = true; + MOZ_DIAGNOSTIC_ASSERT(!mShutdownPromise); + mShutdownPromise = new SharedShutdownPromiseHolder(); + RefPtr<SharedShutdownPromiseHolder> p = mShutdownPromise; + RefPtr<MediaDataDecoder> d = mDecoder; + DDLOGEX2("MediaFormatReader::DecoderData", this, DDLogCategory::Log, + "flushing", DDNoValue{}); + mDecoder->Flush()->Then( + mOwner->OwnerThread(), __func__, + [type, this, p, d]() { + AUTO_PROFILER_LABEL("MediaFormatReader::Flush:Resolved", + MEDIA_PLAYBACK); + DDLOGEX2("MediaFormatReader::DecoderData", this, DDLogCategory::Log, + "flushed", DDNoValue{}); + if (!p->IsEmpty()) { + // Shutdown happened before flush completes. + // Let's continue to shut down the decoder. Note + // we don't access |this| because this decoder + // is no longer managed by MFR::DecoderData. + d->Shutdown()->ChainTo(p->Steal(), __func__); + return; + } + mFlushing = false; + mShutdownPromise = nullptr; + mOwner->ScheduleUpdate(type); + }, + [type, this, p, d](const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::Flush:Rejected", + MEDIA_PLAYBACK); + DDLOGEX2("MediaFormatReader::DecoderData", this, DDLogCategory::Log, + "flush_error", aError); + if (!p->IsEmpty()) { + d->Shutdown()->ChainTo(p->Steal(), __func__); + return; + } + mFlushing = false; + mShutdownPromise = nullptr; + mOwner->NotifyError(type, aError); + }); + } + mFlushed = true; +} + +class MediaFormatReader::DecoderFactory { + using InitPromise = MediaDataDecoder::InitPromise; + using TokenPromise = AllocPolicy::Promise; + using Token = AllocPolicy::Token; + using CreateDecoderPromise = PlatformDecoderModule::CreateDecoderPromise; + + public: + explicit DecoderFactory(MediaFormatReader* aOwner) + : mAudio(aOwner->mAudio, TrackInfo::kAudioTrack, aOwner->OwnerThread()), + mVideo(aOwner->mVideo, TrackInfo::kVideoTrack, aOwner->OwnerThread()), + mOwner(WrapNotNull(aOwner)) { + DecoderDoctorLogger::LogConstruction("MediaFormatReader::DecoderFactory", + this); + DecoderDoctorLogger::LinkParentAndChild( + aOwner, "decoder factory", "MediaFormatReader::DecoderFactory", this); + } + + ~DecoderFactory() { + DecoderDoctorLogger::LogDestruction("MediaFormatReader::DecoderFactory", + this); + } + + void CreateDecoder(TrackType aTrack); + + // Shutdown any decoder pending initialization and reset mAudio/mVideo to its + // pristine state so CreateDecoder() is ready to be called again immediately. + void ShutdownDecoder(TrackType aTrack) { + MOZ_ASSERT(aTrack == TrackInfo::kAudioTrack || + aTrack == TrackInfo::kVideoTrack); + auto& data = aTrack == TrackInfo::kAudioTrack ? mAudio : mVideo; + data.mPolicy->Cancel(); + data.mTokenRequest.DisconnectIfExists(); + if (data.mLiveToken) { + // We haven't completed creation of the decoder, and it hasn't been + // initialised yet. + data.mLiveToken = nullptr; + // The decoder will be shutdown as soon as it's available and tracked by + // the ShutdownPromisePool. + mOwner->mShutdownPromisePool->Track(data.mCreateDecoderPromise->Then( + mOwner->mTaskQueue, __func__, + [](CreateDecoderPromise::ResolveOrRejectValue&& aResult) { + if (aResult.IsReject()) { + return ShutdownPromise::CreateAndResolve(true, __func__); + } + return aResult.ResolveValue()->Shutdown(); + })); + // Free the token to leave room for a new decoder. + data.mToken = nullptr; + } + data.mInitRequest.DisconnectIfExists(); + if (data.mDecoder) { + mOwner->mShutdownPromisePool->ShutdownDecoder(data.mDecoder.forget()); + } + data.mStage = Stage::None; + MOZ_ASSERT(!data.mToken); + } + + private: + enum class Stage : int8_t { None, WaitForToken, CreateDecoder, WaitForInit }; + + struct Data { + Data(DecoderData& aOwnerData, TrackType aTrack, TaskQueue* aThread) + : mOwnerData(aOwnerData), + mTrack(aTrack), + mPolicy(new SingleAllocPolicy(aTrack, aThread)) {} + DecoderData& mOwnerData; + const TrackType mTrack; + RefPtr<SingleAllocPolicy> mPolicy; + Stage mStage = Stage::None; + RefPtr<Token> mToken; + RefPtr<MediaDataDecoder> mDecoder; + MozPromiseRequestHolder<TokenPromise> mTokenRequest; + struct DecoderCancelled : public SupportsWeakPtr { + NS_INLINE_DECL_REFCOUNTING_ONEVENTTARGET(DecoderCancelled) + private: + ~DecoderCancelled() = default; + }; + // Set when decoder is about to be created. If cleared before the decoder + // creation promise is resolved; it indicates that Shutdown() was called and + // further processing such as initialization should stop. + RefPtr<DecoderCancelled> mLiveToken; + RefPtr<CreateDecoderPromise> mCreateDecoderPromise; + MozPromiseRequestHolder<InitPromise> mInitRequest; + } mAudio, mVideo; + + void RunStage(Data& aData); + void DoCreateDecoder(Data& aData); + void DoInitDecoder(Data& aData); + + // guaranteed to be valid by the owner. + const NotNull<MediaFormatReader*> mOwner; +}; + +void MediaFormatReader::DecoderFactory::CreateDecoder(TrackType aTrack) { + MOZ_ASSERT(aTrack == TrackInfo::kAudioTrack || + aTrack == TrackInfo::kVideoTrack); + RunStage(aTrack == TrackInfo::kAudioTrack ? mAudio : mVideo); +} + +void MediaFormatReader::DecoderFactory::RunStage(Data& aData) { + switch (aData.mStage) { + case Stage::None: { + MOZ_ASSERT(!aData.mToken); + aData.mPolicy->Alloc() + ->Then( + mOwner->OwnerThread(), __func__, + [this, &aData](RefPtr<Token> aToken) { + aData.mTokenRequest.Complete(); + aData.mToken = std::move(aToken); + aData.mStage = Stage::CreateDecoder; + RunStage(aData); + }, + [&aData]() { + aData.mTokenRequest.Complete(); + aData.mStage = Stage::None; + }) + ->Track(aData.mTokenRequest); + aData.mStage = Stage::WaitForToken; + break; + } + + case Stage::WaitForToken: { + MOZ_ASSERT(!aData.mToken); + MOZ_ASSERT(aData.mTokenRequest.Exists()); + break; + } + + case Stage::CreateDecoder: { + MOZ_ASSERT(aData.mToken); + MOZ_ASSERT(!aData.mDecoder); + MOZ_ASSERT(!aData.mInitRequest.Exists()); + + DoCreateDecoder(aData); + aData.mStage = Stage::WaitForInit; + break; + } + + case Stage::WaitForInit: { + MOZ_ASSERT((aData.mDecoder && aData.mInitRequest.Exists()) || + aData.mLiveToken); + break; + } + } +} + +void MediaFormatReader::DecoderFactory::DoCreateDecoder(Data& aData) { + AUTO_PROFILER_LABEL("DecoderFactory::DoCreateDecoder", MEDIA_PLAYBACK); + auto& ownerData = aData.mOwnerData; + auto& decoder = mOwner->GetDecoderData(aData.mTrack); + + RefPtr<PDMFactory> platform = new PDMFactory(); + if (decoder.IsEncrypted()) { + MOZ_ASSERT(mOwner->mCDMProxy); + platform->SetCDMProxy(mOwner->mCDMProxy); + } + + RefPtr<PlatformDecoderModule::CreateDecoderPromise> p; + MediaFormatReader* owner = mOwner; + auto onWaitingForKeyEvent = + [owner = ThreadSafeWeakPtr<MediaFormatReader>(owner)]() { + RefPtr<MediaFormatReader> mfr(owner); + MOZ_DIAGNOSTIC_ASSERT(mfr, "The MediaFormatReader didn't wait for us"); + return mfr ? &mfr->OnTrackWaitingForKeyProducer() : nullptr; + }; + + switch (aData.mTrack) { + case TrackInfo::kAudioTrack: { + p = platform->CreateDecoder( + {*ownerData.GetCurrentInfo()->GetAsAudioInfo(), mOwner->mCrashHelper, + CreateDecoderParams::UseNullDecoder(ownerData.mIsNullDecode), + TrackInfo::kAudioTrack, std::move(onWaitingForKeyEvent), + mOwner->mMediaEngineId, mOwner->mTrackingId}); + break; + } + + case TrackType::kVideoTrack: { + // Decoders use the layers backend to decide if they can use hardware + // decoding, so specify LAYERS_NONE if we want to forcibly disable it. + using Option = CreateDecoderParams::Option; + using OptionSet = CreateDecoderParams::OptionSet; + + p = platform->CreateDecoder( + {*ownerData.GetCurrentInfo()->GetAsVideoInfo(), + mOwner->mKnowsCompositor, mOwner->GetImageContainer(), + mOwner->mCrashHelper, + CreateDecoderParams::UseNullDecoder(ownerData.mIsNullDecode), + TrackType::kVideoTrack, std::move(onWaitingForKeyEvent), + CreateDecoderParams::VideoFrameRate(ownerData.mMeanRate.Mean()), + OptionSet(ownerData.mHardwareDecodingDisabled + ? Option::HardwareDecoderNotAllowed + : Option::Default), + mOwner->mMediaEngineId, mOwner->mTrackingId}); + break; + } + + default: + p = PlatformDecoderModule::CreateDecoderPromise::CreateAndReject( + NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__); + } + + aData.mLiveToken = MakeRefPtr<Data::DecoderCancelled>(); + + aData.mCreateDecoderPromise = p->Then( + mOwner->OwnerThread(), __func__, + [this, &aData, &ownerData, live = WeakPtr{aData.mLiveToken}, + owner = ThreadSafeWeakPtr<MediaFormatReader>(owner)]( + RefPtr<MediaDataDecoder>&& aDecoder) { + if (!live) { + return CreateDecoderPromise::CreateAndResolve(std::move(aDecoder), + __func__); + } + aData.mLiveToken = nullptr; + aData.mDecoder = new MediaDataDecoderProxy( + aDecoder.forget(), do_AddRef(ownerData.mTaskQueue.get())); + aData.mDecoder = new AllocationWrapper(aData.mDecoder.forget(), + aData.mToken.forget()); + DecoderDoctorLogger::LinkParentAndChild( + aData.mDecoder.get(), "decoder", + "MediaFormatReader::DecoderFactory", this); + + DoInitDecoder(aData); + + return CreateDecoderPromise::CreateAndResolve(aData.mDecoder, __func__); + }, + [this, &aData, + live = WeakPtr{aData.mLiveToken}](const MediaResult& aError) { + NS_WARNING("Error constructing decoders"); + if (!live) { + return CreateDecoderPromise::CreateAndReject(aError, __func__); + } + aData.mLiveToken = nullptr; + aData.mToken = nullptr; + aData.mStage = Stage::None; + aData.mOwnerData.mDescription = aError.Description(); + DDLOGEX2("MediaFormatReader::DecoderFactory", this, DDLogCategory::Log, + "create_decoder_error", aError); + mOwner->NotifyError(aData.mTrack, aError); + + return CreateDecoderPromise::CreateAndReject(aError, __func__); + }); +} + +void MediaFormatReader::DecoderFactory::DoInitDecoder(Data& aData) { + AUTO_PROFILER_LABEL("DecoderFactory::DoInitDecoder", MEDIA_PLAYBACK); + auto& ownerData = aData.mOwnerData; + + DDLOGEX2("MediaFormatReader::DecoderFactory", this, DDLogCategory::Log, + "initialize_decoder", DDNoValue{}); + aData.mDecoder->Init() + ->Then( + mOwner->OwnerThread(), __func__, + [this, &aData, &ownerData](TrackType aTrack) { + AUTO_PROFILER_LABEL("DecoderFactory::DoInitDecoder:Resolved", + MEDIA_PLAYBACK); + aData.mInitRequest.Complete(); + aData.mStage = Stage::None; + MutexAutoLock lock(ownerData.mMutex); + ownerData.mDecoder = std::move(aData.mDecoder); + ownerData.mDescription = ownerData.mDecoder->GetDescriptionName(); + DDLOGEX2("MediaFormatReader::DecoderFactory", this, + DDLogCategory::Log, "decoder_initialized", DDNoValue{}); + DecoderDoctorLogger::LinkParentAndChild( + "MediaFormatReader::DecoderData", &ownerData, "decoder", + ownerData.mDecoder.get()); + mOwner->SetVideoDecodeThreshold(); + mOwner->ScheduleUpdate(aTrack); + if (aTrack == TrackInfo::kVideoTrack) { + DecoderBenchmark::CheckVersion( + ownerData.GetCurrentInfo()->mMimeType); + } + if (aTrack == TrackInfo::kAudioTrack) { + ownerData.mProcessName = ownerData.mDecoder->GetProcessName(); + ownerData.mCodecName = ownerData.mDecoder->GetCodecName(); + } + }, + [this, &aData, &ownerData](const MediaResult& aError) { + AUTO_PROFILER_LABEL("DecoderFactory::DoInitDecoder:Rejected", + MEDIA_PLAYBACK); + aData.mInitRequest.Complete(); + MOZ_RELEASE_ASSERT(!ownerData.mDecoder, + "Can't have a decoder already set"); + aData.mStage = Stage::None; + mOwner->mShutdownPromisePool->ShutdownDecoder( + aData.mDecoder.forget()); + DDLOGEX2("MediaFormatReader::DecoderFactory", this, + DDLogCategory::Log, "initialize_decoder_error", aError); + mOwner->NotifyError(aData.mTrack, aError); + }) + ->Track(aData.mInitRequest); +} + +// DemuxerProxy ensures that the original main demuxer is only ever accessed +// via its own dedicated task queue. +// This ensure that the reader's taskqueue will never blocked while a demuxer +// is itself blocked attempting to access the MediaCache or the MediaResource. +class MediaFormatReader::DemuxerProxy { + using TrackType = TrackInfo::TrackType; + class Wrapper; + + public: + explicit DemuxerProxy(MediaDataDemuxer* aDemuxer) + : mTaskQueue(TaskQueue::Create( + GetMediaThreadPool(MediaThreadType::PLATFORM_DECODER), + "DemuxerProxy::mTaskQueue")), + mData(new Data(aDemuxer)) { + MOZ_COUNT_CTOR(DemuxerProxy); + } + + MOZ_COUNTED_DTOR(DemuxerProxy) + + RefPtr<ShutdownPromise> Shutdown() { + RefPtr<Data> data = std::move(mData); + return InvokeAsync(mTaskQueue, __func__, [data]() { + // We need to clear our reference to the demuxer now. So that in the event + // the init promise wasn't resolved, such as what can happen with the + // mediasource demuxer that is waiting on more data, it will force the + // init promise to be rejected. + data->mDemuxer = nullptr; + data->mAudioDemuxer = nullptr; + data->mVideoDemuxer = nullptr; + return ShutdownPromise::CreateAndResolve(true, __func__); + }); + } + + RefPtr<MediaDataDemuxer::InitPromise> Init(); + + Wrapper* GetTrackDemuxer(TrackType aTrack, uint32_t aTrackNumber) { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + switch (aTrack) { + case TrackInfo::kAudioTrack: + return mData->mAudioDemuxer; + case TrackInfo::kVideoTrack: + return mData->mVideoDemuxer; + default: + return nullptr; + } + } + + uint32_t GetNumberTracks(TrackType aTrack) const { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + switch (aTrack) { + case TrackInfo::kAudioTrack: + return mData->mNumAudioTrack; + case TrackInfo::kVideoTrack: + return mData->mNumVideoTrack; + default: + return 0; + } + } + + bool IsSeekable() const { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + return mData->mSeekable; + } + + bool IsSeekableOnlyInBufferedRanges() const { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + return mData->mSeekableOnlyInBufferedRange; + } + + UniquePtr<EncryptionInfo> GetCrypto() const { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + if (!mData->mCrypto) { + return nullptr; + } + auto crypto = MakeUnique<EncryptionInfo>(); + *crypto = *mData->mCrypto; + return crypto; + } + + RefPtr<NotifyDataArrivedPromise> NotifyDataArrived(); + + bool ShouldComputeStartTime() const { + MOZ_RELEASE_ASSERT(mData && mData->mInitDone); + + return mData->mShouldComputeStartTime; + } + + private: + const RefPtr<TaskQueue> mTaskQueue; + struct Data { + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Data) + + explicit Data(MediaDataDemuxer* aDemuxer) + : mInitDone(false), mDemuxer(aDemuxer) {} + + Atomic<bool> mInitDone; + // Only ever accessed over mTaskQueue once. + RefPtr<MediaDataDemuxer> mDemuxer; + // Only accessed once InitPromise has been resolved and immutable after. + // So we can safely access them without the use of the mutex. + uint32_t mNumAudioTrack = 0; + RefPtr<Wrapper> mAudioDemuxer; + uint32_t mNumVideoTrack = 0; + RefPtr<Wrapper> mVideoDemuxer; + bool mSeekable = false; + bool mSeekableOnlyInBufferedRange = false; + bool mShouldComputeStartTime = true; + UniquePtr<EncryptionInfo> mCrypto; + + private: + ~Data() = default; + }; + RefPtr<Data> mData; +}; + +class MediaFormatReader::DemuxerProxy::Wrapper : public MediaTrackDemuxer { + public: + Wrapper(MediaTrackDemuxer* aTrackDemuxer, TaskQueue* aTaskQueue) + : mMutex("TrackDemuxer Mutex"), + mTaskQueue(aTaskQueue), + mGetSamplesMayBlock(aTrackDemuxer->GetSamplesMayBlock()), + mInfo(aTrackDemuxer->GetInfo()), + mTrackDemuxer(aTrackDemuxer) { + DecoderDoctorLogger::LogConstructionAndBase( + "MediaFormatReader::DemuxerProxy::Wrapper", this, + static_cast<const MediaTrackDemuxer*>(this)); + DecoderDoctorLogger::LinkParentAndChild( + "MediaFormatReader::DemuxerProxy::Wrapper", this, "track demuxer", + aTrackDemuxer); + } + + UniquePtr<TrackInfo> GetInfo() const override { + if (!mInfo) { + return nullptr; + } + return mInfo->Clone(); + } + + RefPtr<SeekPromise> Seek(const TimeUnit& aTime) override { + RefPtr<Wrapper> self = this; + return InvokeAsync( + mTaskQueue, __func__, + [self, aTime]() { return self->mTrackDemuxer->Seek(aTime); }) + ->Then( + mTaskQueue, __func__, + [self](const TimeUnit& aTime) { + self->UpdateRandomAccessPoint(); + return SeekPromise::CreateAndResolve(aTime, __func__); + }, + [self](const MediaResult& aError) { + self->UpdateRandomAccessPoint(); + return SeekPromise::CreateAndReject(aError, __func__); + }); + } + + RefPtr<SamplesPromise> GetSamples(int32_t aNumSamples) override { + RefPtr<Wrapper> self = this; + return InvokeAsync(mTaskQueue, __func__, + [self, aNumSamples]() { + return self->mTrackDemuxer->GetSamples(aNumSamples); + }) + ->Then( + mTaskQueue, __func__, + [self](RefPtr<SamplesHolder> aSamples) { + self->UpdateRandomAccessPoint(); + return SamplesPromise::CreateAndResolve(aSamples.forget(), + __func__); + }, + [self](const MediaResult& aError) { + self->UpdateRandomAccessPoint(); + return SamplesPromise::CreateAndReject(aError, __func__); + }); + } + + bool GetSamplesMayBlock() const override { return mGetSamplesMayBlock; } + + void Reset() override { + RefPtr<Wrapper> self = this; + nsresult rv = mTaskQueue->Dispatch(NS_NewRunnableFunction( + "MediaFormatReader::DemuxerProxy::Wrapper::Reset", + [self]() { self->mTrackDemuxer->Reset(); })); + MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv)); + Unused << rv; + } + + nsresult GetNextRandomAccessPoint(TimeUnit* aTime) override { + MutexAutoLock lock(mMutex); + if (NS_SUCCEEDED(mNextRandomAccessPointResult)) { + *aTime = mNextRandomAccessPoint; + } + return mNextRandomAccessPointResult; + } + + RefPtr<SkipAccessPointPromise> SkipToNextRandomAccessPoint( + const TimeUnit& aTimeThreshold) override { + RefPtr<Wrapper> self = this; + return InvokeAsync( + mTaskQueue, __func__, + [self, aTimeThreshold]() { + return self->mTrackDemuxer->SkipToNextRandomAccessPoint( + aTimeThreshold); + }) + ->Then( + mTaskQueue, __func__, + [self](uint32_t aVal) { + self->UpdateRandomAccessPoint(); + return SkipAccessPointPromise::CreateAndResolve(aVal, __func__); + }, + [self](const SkipFailureHolder& aError) { + self->UpdateRandomAccessPoint(); + return SkipAccessPointPromise::CreateAndReject(aError, __func__); + }); + } + + TimeIntervals GetBuffered() override { + MutexAutoLock lock(mMutex); + return mBuffered; + } + + void BreakCycles() override {} + + private: + Mutex mMutex MOZ_UNANNOTATED; + const RefPtr<TaskQueue> mTaskQueue; + const bool mGetSamplesMayBlock; + const UniquePtr<TrackInfo> mInfo; + // mTrackDemuxer is only ever accessed on demuxer's task queue. + RefPtr<MediaTrackDemuxer> mTrackDemuxer; + // All following members are protected by mMutex + nsresult mNextRandomAccessPointResult = NS_OK; + TimeUnit mNextRandomAccessPoint; + TimeIntervals mBuffered; + friend class DemuxerProxy; + + ~Wrapper() { + RefPtr<MediaTrackDemuxer> trackDemuxer = std::move(mTrackDemuxer); + nsresult rv = mTaskQueue->Dispatch(NS_NewRunnableFunction( + "MediaFormatReader::DemuxerProxy::Wrapper::~Wrapper", + [trackDemuxer]() { trackDemuxer->BreakCycles(); })); + MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv)); + Unused << rv; + DecoderDoctorLogger::LogDestruction( + "MediaFormatReader::DemuxerProxy::Wrapper", this); + } + + void UpdateRandomAccessPoint() { + MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn()); + if (!mTrackDemuxer) { + // Detached. + return; + } + MutexAutoLock lock(mMutex); + mNextRandomAccessPointResult = + mTrackDemuxer->GetNextRandomAccessPoint(&mNextRandomAccessPoint); + } + + void UpdateBuffered() { + MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn()); + if (!mTrackDemuxer) { + // Detached. + return; + } + MutexAutoLock lock(mMutex); + mBuffered = mTrackDemuxer->GetBuffered(); + } +}; + +RefPtr<MediaDataDemuxer::InitPromise> MediaFormatReader::DemuxerProxy::Init() { + AUTO_PROFILER_LABEL("DemuxerProxy::Init", MEDIA_PLAYBACK); + using InitPromise = MediaDataDemuxer::InitPromise; + + RefPtr<Data> data = mData; + RefPtr<TaskQueue> taskQueue = mTaskQueue; + return InvokeAsync(mTaskQueue, __func__, + [data, taskQueue]() { + if (!data->mDemuxer) { + return InitPromise::CreateAndReject( + NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + return data->mDemuxer->Init(); + }) + ->Then( + taskQueue, __func__, + [data, taskQueue]() { + AUTO_PROFILER_LABEL("DemuxerProxy::Init:Resolved", MEDIA_PLAYBACK); + if (!data->mDemuxer) { // Was shutdown. + return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_CANCELED, + __func__); + } + data->mNumAudioTrack = + data->mDemuxer->GetNumberTracks(TrackInfo::kAudioTrack); + if (data->mNumAudioTrack) { + RefPtr<MediaTrackDemuxer> d = + data->mDemuxer->GetTrackDemuxer(TrackInfo::kAudioTrack, 0); + if (d) { + RefPtr<Wrapper> wrapper = + new DemuxerProxy::Wrapper(d, taskQueue); + wrapper->UpdateBuffered(); + data->mAudioDemuxer = wrapper; + DecoderDoctorLogger::LinkParentAndChild( + data->mDemuxer.get(), "decoder factory wrapper", + "MediaFormatReader::DecoderFactory::Wrapper", + wrapper.get()); + } + } + data->mNumVideoTrack = + data->mDemuxer->GetNumberTracks(TrackInfo::kVideoTrack); + if (data->mNumVideoTrack) { + RefPtr<MediaTrackDemuxer> d = + data->mDemuxer->GetTrackDemuxer(TrackInfo::kVideoTrack, 0); + if (d) { + RefPtr<Wrapper> wrapper = + new DemuxerProxy::Wrapper(d, taskQueue); + wrapper->UpdateBuffered(); + data->mVideoDemuxer = wrapper; + DecoderDoctorLogger::LinkParentAndChild( + data->mDemuxer.get(), "decoder factory wrapper", + "MediaFormatReader::DecoderFactory::Wrapper", + wrapper.get()); + } + } + data->mCrypto = data->mDemuxer->GetCrypto(); + data->mSeekable = data->mDemuxer->IsSeekable(); + data->mSeekableOnlyInBufferedRange = + data->mDemuxer->IsSeekableOnlyInBufferedRanges(); + data->mShouldComputeStartTime = + data->mDemuxer->ShouldComputeStartTime(); + data->mInitDone = true; + return InitPromise::CreateAndResolve(NS_OK, __func__); + }, + [](const MediaResult& aError) { + return InitPromise::CreateAndReject(aError, __func__); + }); +} + +RefPtr<MediaFormatReader::NotifyDataArrivedPromise> +MediaFormatReader::DemuxerProxy::NotifyDataArrived() { + RefPtr<Data> data = mData; + return InvokeAsync(mTaskQueue, __func__, [data]() { + if (!data->mDemuxer) { + // Was shutdown. + return NotifyDataArrivedPromise::CreateAndReject( + NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + data->mDemuxer->NotifyDataArrived(); + if (data->mAudioDemuxer) { + data->mAudioDemuxer->UpdateBuffered(); + } + if (data->mVideoDemuxer) { + data->mVideoDemuxer->UpdateBuffered(); + } + return NotifyDataArrivedPromise::CreateAndResolve(true, __func__); + }); +} + +MediaFormatReader::MediaFormatReader(MediaFormatReaderInit& aInit, + MediaDataDemuxer* aDemuxer) + : mTaskQueue( + TaskQueue::Create(GetMediaThreadPool(MediaThreadType::SUPERVISOR), + "MediaFormatReader::mTaskQueue", + /* aSupportsTailDispatch = */ true)), + mAudio(this, MediaData::Type::AUDIO_DATA, + StaticPrefs::media_audio_max_decode_error()), + mVideo(this, MediaData::Type::VIDEO_DATA, + StaticPrefs::media_video_max_decode_error()), + mWorkingInfoChanged(false, "MediaFormatReader::mWorkingInfoChanged"), + mWatchManager(this, OwnerThread()), + mIsWatchingWorkingInfo(false), + mDemuxer(new DemuxerProxy(aDemuxer)), + mDemuxerInitDone(false), + mPendingNotifyDataArrived(false), + mLastReportedNumDecodedFrames(0), + mPreviousDecodedKeyframeTime_us(sNoPreviousDecodedKeyframe), + mKnowsCompositor(aInit.mKnowsCompositor), + mInitDone(false), + mTrackDemuxersMayBlock(false), + mSeekScheduled(false), + mVideoFrameContainer(aInit.mVideoFrameContainer), + mCrashHelper(aInit.mCrashHelper), + mDecoderFactory(new DecoderFactory(this)), + mShutdownPromisePool(new ShutdownPromisePool()), + mBuffered(mTaskQueue, TimeIntervals(), + "MediaFormatReader::mBuffered (Canonical)"), + mFrameStats(aInit.mFrameStats), + mMediaDecoderOwnerID(aInit.mMediaDecoderOwnerID), + mTrackingId(std::move(aInit.mTrackingId)) { + MOZ_ASSERT(aDemuxer); + MOZ_COUNT_CTOR(MediaFormatReader); + DDLINKCHILD("audio decoder data", "MediaFormatReader::DecoderDataWithPromise", + &mAudio); + DDLINKCHILD("video decoder data", "MediaFormatReader::DecoderDataWithPromise", + &mVideo); + DDLINKCHILD("demuxer", aDemuxer); + mOnTrackWaitingForKeyListener = OnTrackWaitingForKey().Connect( + mTaskQueue, this, &MediaFormatReader::NotifyWaitingForKey); +} + +MediaFormatReader::~MediaFormatReader() { + MOZ_COUNT_DTOR(MediaFormatReader); + MOZ_ASSERT(mShutdown); +} + +RefPtr<ShutdownPromise> MediaFormatReader::Shutdown() { + MOZ_ASSERT(OnTaskQueue()); + LOG(""); + + mDemuxerInitRequest.DisconnectIfExists(); + mNotifyDataArrivedPromise.DisconnectIfExists(); + mMetadataPromise.RejectIfExists(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + mSeekPromise.RejectIfExists(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + mSkipRequest.DisconnectIfExists(); + mSetCDMPromise.RejectIfExists( + MediaResult(NS_ERROR_DOM_INVALID_STATE_ERR, + "MediaFormatReader is shutting down"), + __func__); + + if (mIsWatchingWorkingInfo) { + mWatchManager.Unwatch(mWorkingInfoChanged, + &MediaFormatReader::NotifyTrackInfoUpdated); + } + mWatchManager.Shutdown(); + + if (mAudio.HasPromise()) { + mAudio.RejectPromise(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + if (mVideo.HasPromise()) { + mVideo.RejectPromise(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + + if (HasAudio()) { + mAudio.ResetDemuxer(); + mAudio.mTrackDemuxer->BreakCycles(); + { + MutexAutoLock lock(mAudio.mMutex); + mAudio.mTrackDemuxer = nullptr; + } + mAudio.ResetState(); + ShutdownDecoder(TrackInfo::kAudioTrack); + } + + if (HasVideo()) { + mVideo.ResetDemuxer(); + mVideo.mTrackDemuxer->BreakCycles(); + { + MutexAutoLock lock(mVideo.mMutex); + mVideo.mTrackDemuxer = nullptr; + } + mVideo.ResetState(); + ShutdownDecoder(TrackInfo::kVideoTrack); + } + + mShutdownPromisePool->Track(mDemuxer->Shutdown()); + mDemuxer = nullptr; + + mOnTrackWaitingForKeyListener.Disconnect(); + + mShutdown = true; + return mShutdownPromisePool->Shutdown()->Then( + OwnerThread(), __func__, this, &MediaFormatReader::TearDownDecoders, + &MediaFormatReader::TearDownDecoders); +} + +void MediaFormatReader::ShutdownDecoder(TrackType aTrack) { + LOGV("%s", TrackTypeToStr(aTrack)); + + // Shut down the pending decoder if any. + mDecoderFactory->ShutdownDecoder(aTrack); + + auto& decoder = GetDecoderData(aTrack); + // Flush the decoder if necessary. + decoder.Flush(); + + // Shut down the decoder if any. + decoder.ShutdownDecoder(); +} + +void MediaFormatReader::NotifyDecoderBenchmarkStore() { + MOZ_ASSERT(OnTaskQueue()); + if (!StaticPrefs::media_mediacapabilities_from_database()) { + return; + } + auto& decoder = GetDecoderData(TrackInfo::kVideoTrack); + if (decoder.GetCurrentInfo() && decoder.GetCurrentInfo()->GetAsVideoInfo()) { + VideoInfo info = *(decoder.GetCurrentInfo()->GetAsVideoInfo()); + info.SetFrameRate(static_cast<int32_t>(ceil(decoder.mMeanRate.Mean()))); + mOnStoreDecoderBenchmark.Notify(std::move(info)); + } +} + +void MediaFormatReader::NotifyTrackInfoUpdated() { + MOZ_ASSERT(OnTaskQueue()); + if (mWorkingInfoChanged) { + mWorkingInfoChanged = false; + + VideoInfo videoInfo; + AudioInfo audioInfo; + { + MutexAutoLock lock(mVideo.mMutex); + if (HasVideo()) { + videoInfo = *mVideo.GetWorkingInfo()->GetAsVideoInfo(); + } + } + { + MutexAutoLock lock(mAudio.mMutex); + if (HasAudio()) { + audioInfo = *mAudio.GetWorkingInfo()->GetAsAudioInfo(); + } + } + + mTrackInfoUpdatedEvent.Notify(videoInfo, audioInfo); + } +} + +RefPtr<ShutdownPromise> MediaFormatReader::TearDownDecoders() { + if (mAudio.mTaskQueue) { + mAudio.mTaskQueue->BeginShutdown(); + mAudio.mTaskQueue->AwaitShutdownAndIdle(); + mAudio.mTaskQueue = nullptr; + } + if (mVideo.mTaskQueue) { + mVideo.mTaskQueue->BeginShutdown(); + mVideo.mTaskQueue->AwaitShutdownAndIdle(); + mVideo.mTaskQueue = nullptr; + } + + mDecoderFactory = nullptr; + mVideoFrameContainer = nullptr; + + ReleaseResources(); + mBuffered.DisconnectAll(); + return mTaskQueue->BeginShutdown(); +} + +nsresult MediaFormatReader::Init() { + MOZ_ASSERT(NS_IsMainThread(), "Must be on main thread."); + + mAudio.mTaskQueue = + TaskQueue::Create(GetMediaThreadPool(MediaThreadType::PLATFORM_DECODER), + "MFR::mAudio::mTaskQueue"); + + mVideo.mTaskQueue = + TaskQueue::Create(GetMediaThreadPool(MediaThreadType::PLATFORM_DECODER), + "MFR::mVideo::mTaskQueue"); + + return NS_OK; +} + +bool MediaFormatReader::ResolveSetCDMPromiseIfDone(TrackType aTrack) { + // When a CDM proxy is set, MFR would shutdown the existing MediaDataDecoder + // and would create new one for specific track in the next Update. + MOZ_ASSERT(OnTaskQueue()); + + if (mSetCDMPromise.IsEmpty()) { + return true; + } + + MOZ_ASSERT(mCDMProxy); + if (mSetCDMForTracks.contains(aTrack)) { + mSetCDMForTracks -= aTrack; + } + + if (mSetCDMForTracks.isEmpty()) { + LOGV("%s : Done ", __func__); + mSetCDMPromise.Resolve(/* aIgnored = */ true, __func__); + if (HasAudio()) { + ScheduleUpdate(TrackInfo::kAudioTrack); + } + if (HasVideo()) { + ScheduleUpdate(TrackInfo::kVideoTrack); + } + return true; + } + LOGV("%s : %s track is ready.", __func__, TrackTypeToStr(aTrack)); + return false; +} + +void MediaFormatReader::PrepareToSetCDMForTrack(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + LOGV("%s : %s", __func__, TrackTypeToStr(aTrack)); + + mSetCDMForTracks += aTrack; + if (mCDMProxy) { + // An old cdm proxy exists, so detaching old cdm proxy by shutting down + // MediaDataDecoder. + ShutdownDecoder(aTrack); + } + ScheduleUpdate(aTrack); +} + +bool MediaFormatReader::IsDecoderWaitingForCDM(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + return GetDecoderData(aTrack).IsEncrypted() && + mSetCDMForTracks.contains(aTrack) && !mCDMProxy; +} + +RefPtr<SetCDMPromise> MediaFormatReader::SetCDMProxy(CDMProxy* aProxy) { + MOZ_ASSERT(OnTaskQueue()); + LOGV("SetCDMProxy (%p)", aProxy); + + if (mShutdown) { + return SetCDMPromise::CreateAndReject( + MediaResult(NS_ERROR_DOM_INVALID_STATE_ERR, + "MediaFormatReader is shutting down"), + __func__); + } + + mSetCDMPromise.RejectIfExists( + MediaResult(NS_ERROR_DOM_INVALID_STATE_ERR, + "Another new CDM proxy is being set."), + __func__); + + // Shutdown all decoders as switching CDM proxy indicates that it's + // inappropriate for the existing decoders to continue decoding via the old + // CDM proxy. + if (HasAudio()) { + PrepareToSetCDMForTrack(TrackInfo::kAudioTrack); + } + if (HasVideo()) { + PrepareToSetCDMForTrack(TrackInfo::kVideoTrack); + } + + mCDMProxy = aProxy; + + if (!mInitDone || mSetCDMForTracks.isEmpty() || !mCDMProxy) { + // 1) MFR is not initialized yet or + // 2) Demuxer is initialized without active audio and video or + // 3) A null cdm proxy is set + // the promise can be resolved directly. + mSetCDMForTracks.clear(); + return SetCDMPromise::CreateAndResolve(/* aIgnored = */ true, __func__); + } + + RefPtr<SetCDMPromise> p = mSetCDMPromise.Ensure(__func__); + return p; +} + +bool MediaFormatReader::IsWaitingOnCDMResource() { + MOZ_ASSERT(OnTaskQueue()); + return IsEncrypted() && !mCDMProxy; +} + +RefPtr<MediaFormatReader::MetadataPromise> +MediaFormatReader::AsyncReadMetadata() { + AUTO_PROFILER_LABEL("MediaFormatReader::AsyncReadMetadata", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + MOZ_DIAGNOSTIC_ASSERT(mMetadataPromise.IsEmpty()); + + if (mInitDone) { + // We are returning from dormant. + MetadataHolder metadata; + metadata.mInfo = MakeUnique<MediaInfo>(mInfo); + return MetadataPromise::CreateAndResolve(std::move(metadata), __func__); + } + + RefPtr<MetadataPromise> p = mMetadataPromise.Ensure(__func__); + + mDemuxer->Init() + ->Then(OwnerThread(), __func__, this, + &MediaFormatReader::OnDemuxerInitDone, + &MediaFormatReader::OnDemuxerInitFailed) + ->Track(mDemuxerInitRequest); + return p; +} + +void MediaFormatReader::OnDemuxerInitDone(const MediaResult& aResult) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnDemuxerInitDone", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + mDemuxerInitRequest.Complete(); + + if (NS_FAILED(aResult) && StaticPrefs::media_playback_warnings_as_errors()) { + mMetadataPromise.Reject(aResult, __func__); + return; + } + + mDemuxerInitDone = true; + + UniquePtr<MetadataTags> tags(MakeUnique<MetadataTags>()); + + RefPtr<PDMFactory> platform; + if (!IsWaitingOnCDMResource()) { + platform = new PDMFactory(); + } + + // To decode, we need valid video and a place to put it. + bool videoActive = !!mDemuxer->GetNumberTracks(TrackInfo::kVideoTrack) && + GetImageContainer(); + + if (videoActive) { + // We currently only handle the first video track. + MutexAutoLock lock(mVideo.mMutex); + mVideo.mTrackDemuxer = mDemuxer->GetTrackDemuxer(TrackInfo::kVideoTrack, 0); + if (!mVideo.mTrackDemuxer) { + mMetadataPromise.Reject(NS_ERROR_DOM_MEDIA_METADATA_ERR, __func__); + return; + } + + UniquePtr<TrackInfo> videoInfo = mVideo.mTrackDemuxer->GetInfo(); + videoActive = videoInfo && videoInfo->IsValid(); + if (videoActive) { + if (platform && platform->SupportsMimeType(videoInfo->mMimeType) == + media::DecodeSupport::Unsupported) { + // We have no decoder for this track. Error. + mMetadataPromise.Reject(NS_ERROR_DOM_MEDIA_METADATA_ERR, __func__); + return; + } + mInfo.mVideo = *videoInfo->GetAsVideoInfo(); + mVideo.mWorkingInfo = MakeUnique<VideoInfo>(mInfo.mVideo); + for (const MetadataTag& tag : videoInfo->mTags) { + tags->InsertOrUpdate(tag.mKey, tag.mValue); + } + mWorkingInfoChanged = true; + mVideo.mOriginalInfo = std::move(videoInfo); + mTrackDemuxersMayBlock |= mVideo.mTrackDemuxer->GetSamplesMayBlock(); + } else { + mVideo.mTrackDemuxer->BreakCycles(); + mVideo.mTrackDemuxer = nullptr; + } + } + + bool audioActive = !!mDemuxer->GetNumberTracks(TrackInfo::kAudioTrack); + if (audioActive) { + MutexAutoLock lock(mAudio.mMutex); + mAudio.mTrackDemuxer = mDemuxer->GetTrackDemuxer(TrackInfo::kAudioTrack, 0); + if (!mAudio.mTrackDemuxer) { + mMetadataPromise.Reject(NS_ERROR_DOM_MEDIA_METADATA_ERR, __func__); + return; + } + + UniquePtr<TrackInfo> audioInfo = mAudio.mTrackDemuxer->GetInfo(); + // We actively ignore audio tracks that we know we can't play. + audioActive = + audioInfo && audioInfo->IsValid() && + (!platform || platform->SupportsMimeType(audioInfo->mMimeType) != + media::DecodeSupport::Unsupported); + + if (audioActive) { + mInfo.mAudio = *audioInfo->GetAsAudioInfo(); + mAudio.mWorkingInfo = MakeUnique<AudioInfo>(mInfo.mAudio); + for (const MetadataTag& tag : audioInfo->mTags) { + tags->InsertOrUpdate(tag.mKey, tag.mValue); + } + mWorkingInfoChanged = true; + mAudio.mOriginalInfo = std::move(audioInfo); + mTrackDemuxersMayBlock |= mAudio.mTrackDemuxer->GetSamplesMayBlock(); + } else { + mAudio.mTrackDemuxer->BreakCycles(); + mAudio.mTrackDemuxer = nullptr; + } + } + + UniquePtr<EncryptionInfo> crypto = mDemuxer->GetCrypto(); + if (crypto && crypto->IsEncrypted()) { + // Try and dispatch 'encrypted'. Won't go if ready state still HAVE_NOTHING. + for (uint32_t i = 0; i < crypto->mInitDatas.Length(); i++) { + mOnEncrypted.Notify(crypto->mInitDatas[i].mInitData, + crypto->mInitDatas[i].mType); + } + mInfo.mCrypto = *crypto; + } + + auto videoDuration = HasVideo() ? mInfo.mVideo.mDuration : TimeUnit::Zero(); + auto audioDuration = HasAudio() ? mInfo.mAudio.mDuration : TimeUnit::Zero(); + + // If the duration is 0 on both audio and video, it mMetadataDuration is to be + // Nothing(). Duration will use buffered ranges. + if (videoDuration.IsPositive() || audioDuration.IsPositive()) { + auto duration = std::max(videoDuration, audioDuration); + mInfo.mMetadataDuration = Some(duration); + } + + mInfo.mMediaSeekable = mDemuxer->IsSeekable(); + mInfo.mMediaSeekableOnlyInBufferedRanges = + mDemuxer->IsSeekableOnlyInBufferedRanges(); + + if (!videoActive && !audioActive) { + mMetadataPromise.Reject(NS_ERROR_DOM_MEDIA_METADATA_ERR, __func__); + return; + } + + mTags = std::move(tags); + mInitDone = true; + + // Try to get the start time. + // For MSE case, the start time of each track is assumed to be 0. + // For others, we must demux the first sample to know the start time for each + // track. + if (!mDemuxer->ShouldComputeStartTime()) { + mAudio.mFirstDemuxedSampleTime.emplace(TimeUnit::Zero()); + mVideo.mFirstDemuxedSampleTime.emplace(TimeUnit::Zero()); + } else { + if (HasAudio()) { + RequestDemuxSamples(TrackInfo::kAudioTrack); + } + + if (HasVideo()) { + RequestDemuxSamples(TrackInfo::kVideoTrack); + } + } + + if (aResult != NS_OK) { + mOnDecodeWarning.Notify(aResult); + } + + MaybeResolveMetadataPromise(); +} + +void MediaFormatReader::MaybeResolveMetadataPromise() { + MOZ_ASSERT(OnTaskQueue()); + + if ((HasAudio() && mAudio.mFirstDemuxedSampleTime.isNothing()) || + (HasVideo() && mVideo.mFirstDemuxedSampleTime.isNothing())) { + return; + } + + TimeUnit startTime = + std::min(mAudio.mFirstDemuxedSampleTime.refOr(TimeUnit::FromInfinity()), + mVideo.mFirstDemuxedSampleTime.refOr(TimeUnit::FromInfinity())); + + if (!startTime.IsInfinite()) { + mInfo.mStartTime = startTime; // mInfo.mStartTime is initialized to 0. + } + + MetadataHolder metadata; + metadata.mInfo = MakeUnique<MediaInfo>(mInfo); + metadata.mTags = mTags->Count() ? std::move(mTags) : nullptr; + + // We now have all the informations required to calculate the initial buffered + // range. + mHasStartTime = true; + UpdateBuffered(); + + mWatchManager.Watch(mWorkingInfoChanged, + &MediaFormatReader::NotifyTrackInfoUpdated); + mIsWatchingWorkingInfo = true; + + mMetadataPromise.Resolve(std::move(metadata), __func__); +} + +bool MediaFormatReader::IsEncrypted() const { + return (HasAudio() && mAudio.GetCurrentInfo()->mCrypto.IsEncrypted()) || + (HasVideo() && mVideo.GetCurrentInfo()->mCrypto.IsEncrypted()); +} + +void MediaFormatReader::OnDemuxerInitFailed(const MediaResult& aError) { + mDemuxerInitRequest.Complete(); + mMetadataPromise.Reject(aError, __func__); +} + +void MediaFormatReader::ReadUpdatedMetadata(MediaInfo* aInfo) { + // Called on the MDSM's TaskQueue. + { + MutexAutoLock lock(mVideo.mMutex); + if (HasVideo()) { + aInfo->mVideo = *mVideo.GetWorkingInfo()->GetAsVideoInfo(); + } + } + { + MutexAutoLock lock(mAudio.mMutex); + if (HasAudio()) { + aInfo->mAudio = *mAudio.GetWorkingInfo()->GetAsAudioInfo(); + Maybe<nsCString> audioProcessPerCodecName = GetAudioProcessPerCodec(); + if (audioProcessPerCodecName.isSome()) { + Telemetry::ScalarAdd( + Telemetry::ScalarID::MEDIA_AUDIO_PROCESS_PER_CODEC_NAME, + NS_ConvertUTF8toUTF16(*audioProcessPerCodecName), 1); + } + } + } +} + +MediaFormatReader::DecoderData& MediaFormatReader::GetDecoderData( + TrackType aTrack) { + MOZ_ASSERT(aTrack == TrackInfo::kAudioTrack || + aTrack == TrackInfo::kVideoTrack); + if (aTrack == TrackInfo::kAudioTrack) { + return mAudio; + } + return mVideo; +} + +Maybe<TimeUnit> MediaFormatReader::ShouldSkip(TimeUnit aTimeThreshold, + bool aRequestNextVideoKeyFrame) { + MOZ_ASSERT(OnTaskQueue()); + MOZ_ASSERT(HasVideo()); + + if (!StaticPrefs::media_decoder_skip_to_next_key_frame_enabled()) { + return Nothing(); + } + + // Ensure we have no pending seek going as skip-to-keyframe could return out + // of date information. + if (mVideo.HasInternalSeekPending()) { + return Nothing(); + } + + TimeUnit nextKeyframe; + nsresult rv = mVideo.mTrackDemuxer->GetNextRandomAccessPoint(&nextKeyframe); + if (NS_FAILED(rv)) { + // Only OggTrackDemuxer with video type gets into here. + // We don't support skip-to-next-frame for this case. + return Nothing(); + } + + const bool isNextKeyframeValid = + nextKeyframe.ToMicroseconds() >= 0 && !nextKeyframe.IsInfinite(); + // If we request the next keyframe, only return times greater than + // aTimeThreshold. Otherwise, data will be already behind the threshold and + // will be eventually discarded somewhere in the media pipeline. + if (aRequestNextVideoKeyFrame && isNextKeyframeValid && + nextKeyframe > aTimeThreshold) { + return Some(nextKeyframe); + } + + const bool isNextVideoBehindTheThreshold = + (isNextKeyframeValid && nextKeyframe <= aTimeThreshold) || + GetInternalSeekTargetEndTime() < aTimeThreshold; + return isNextVideoBehindTheThreshold ? Some(aTimeThreshold) : Nothing(); +} + +RefPtr<MediaFormatReader::VideoDataPromise> MediaFormatReader::RequestVideoData( + const TimeUnit& aTimeThreshold, bool aRequestNextVideoKeyFrame) { + MOZ_ASSERT(OnTaskQueue()); + MOZ_DIAGNOSTIC_ASSERT(!mVideo.HasPromise(), "No duplicate sample requests"); + // Requesting video can be done independently from audio, even during audio + // seeking. But it shouldn't happen if we're doing video seek. + if (!IsAudioOnlySeeking()) { + MOZ_DIAGNOSTIC_ASSERT(mSeekPromise.IsEmpty(), + "No sample requests allowed while seeking"); + MOZ_DIAGNOSTIC_ASSERT(!mVideo.mSeekRequest.Exists() || + mVideo.mTimeThreshold.isSome()); + MOZ_DIAGNOSTIC_ASSERT(!IsSeeking(), "called mid-seek"); + } + LOGV("RequestVideoData(%" PRId64 "), requestNextKeyFrame=%d", + aTimeThreshold.ToMicroseconds(), aRequestNextVideoKeyFrame); + + if (!HasVideo()) { + LOG("called with no video track"); + return VideoDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, + __func__); + } + + if (IsSeeking()) { + LOG("called mid-seek. Rejecting."); + return VideoDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_CANCELED, + __func__); + } + + if (mShutdown) { + NS_WARNING("RequestVideoData on shutdown MediaFormatReader!"); + return VideoDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_CANCELED, + __func__); + } + + if (Maybe<TimeUnit> target = + ShouldSkip(aTimeThreshold, aRequestNextVideoKeyFrame)) { + PROFILER_MARKER_UNTYPED("RequestVideoData SkipVideoDemuxToNextKeyFrame", + MEDIA_PLAYBACK); + RefPtr<VideoDataPromise> p = mVideo.EnsurePromise(__func__); + SkipVideoDemuxToNextKeyFrame(*target); + return p; + } + + RefPtr<VideoDataPromise> p = mVideo.EnsurePromise(__func__); + ScheduleUpdate(TrackInfo::kVideoTrack); + + return p; +} + +void MediaFormatReader::OnDemuxFailed(TrackType aTrack, + const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnDemuxFailed", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOG("Failed to demux %s, failure:%s", + aTrack == TrackType::kVideoTrack ? "video" : "audio", + aError.ErrorName().get()); + auto& decoder = GetDecoderData(aTrack); + decoder.mDemuxRequest.Complete(); + switch (aError.Code()) { + case NS_ERROR_DOM_MEDIA_END_OF_STREAM: + DDLOG(DDLogCategory::Log, + aTrack == TrackType::kVideoTrack ? "video_demux_interruption" + : "audio_demux_interruption", + aError); + if (!decoder.mWaitingForData) { + decoder.RequestDrain(); + } + NotifyEndOfStream(aTrack); + break; + case NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA: + DDLOG(DDLogCategory::Log, + aTrack == TrackType::kVideoTrack ? "video_demux_interruption" + : "audio_demux_interruption", + aError); + if (!decoder.mWaitingForData) { + decoder.RequestDrain(); + } + NotifyWaitingForData(aTrack); + break; + case NS_ERROR_DOM_MEDIA_CANCELED: + DDLOG(DDLogCategory::Log, + aTrack == TrackType::kVideoTrack ? "video_demux_interruption" + : "audio_demux_interruption", + aError); + if (decoder.HasPromise()) { + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + break; + default: + DDLOG(DDLogCategory::Log, + aTrack == TrackType::kVideoTrack ? "video_demux_error" + : "audio_demux_error", + aError); + NotifyError(aTrack, aError); + break; + } +} + +void MediaFormatReader::DoDemuxVideo() { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxVideo", MEDIA_PLAYBACK); + using SamplesPromise = MediaTrackDemuxer::SamplesPromise; + + DDLOG(DDLogCategory::Log, "video_demuxing", DDNoValue{}); + PerformanceRecorder<PlaybackStage> perfRecorder( + MediaStage::RequestDemux, + mVideo.GetCurrentInfo()->GetAsVideoInfo()->mImage.height); + auto p = mVideo.mTrackDemuxer->GetSamples(1); + + RefPtr<MediaFormatReader> self = this; + if (mVideo.mFirstDemuxedSampleTime.isNothing()) { + p = p->Then( + OwnerThread(), __func__, + [self](RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxVideo:Resolved", + MEDIA_PLAYBACK); + DDLOGEX(self.get(), DDLogCategory::Log, "video_first_demuxed", + DDNoValue{}); + self->OnFirstDemuxCompleted(TrackInfo::kVideoTrack, aSamples); + return SamplesPromise::CreateAndResolve(aSamples.forget(), __func__); + }, + [self](const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxVideo:Rejected", + MEDIA_PLAYBACK); + DDLOGEX(self.get(), DDLogCategory::Log, "video_first_demuxing_error", + aError); + self->OnFirstDemuxFailed(TrackInfo::kVideoTrack, aError); + return SamplesPromise::CreateAndReject(aError, __func__); + }); + } + + p->Then( + OwnerThread(), __func__, + [self, perfRecorder(std::move(perfRecorder))]( + RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) mutable { + perfRecorder.Record(); + self->OnVideoDemuxCompleted(std::move(aSamples)); + }, + [self](const MediaResult& aError) { self->OnVideoDemuxFailed(aError); }) + ->Track(mVideo.mDemuxRequest); +} + +void MediaFormatReader::OnVideoDemuxCompleted( + RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnVideoDemuxCompleted", + MEDIA_PLAYBACK); + LOGV("%zu video samples demuxed (sid:%d)", aSamples->GetSamples().Length(), + aSamples->GetSamples()[0]->mTrackInfo + ? aSamples->GetSamples()[0]->mTrackInfo->GetID() + : 0); + DDLOG(DDLogCategory::Log, "video_demuxed_samples", + uint64_t(aSamples->GetSamples().Length())); + mVideo.mDemuxRequest.Complete(); + mVideo.mQueuedSamples.AppendElements(aSamples->GetSamples()); + ScheduleUpdate(TrackInfo::kVideoTrack); +} + +RefPtr<MediaFormatReader::AudioDataPromise> +MediaFormatReader::RequestAudioData() { + MOZ_ASSERT(OnTaskQueue()); + MOZ_DIAGNOSTIC_ASSERT(!mAudio.HasPromise(), "No duplicate sample requests"); + // Requesting audio can be done independently from video, even during video + // seeking. But it shouldn't happen if we're doing audio seek. + if (!IsVideoOnlySeeking()) { + MOZ_DIAGNOSTIC_ASSERT(mSeekPromise.IsEmpty(), + "No sample requests allowed while seeking"); + MOZ_DIAGNOSTIC_ASSERT(!mAudio.mSeekRequest.Exists() || + mAudio.mTimeThreshold.isSome()); + MOZ_DIAGNOSTIC_ASSERT(!IsSeeking(), "called mid-seek"); + } + LOGV(""); + + if (!HasAudio()) { + LOG("called with no audio track"); + return AudioDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, + __func__); + } + + if (IsSeeking()) { + LOG("called mid-seek. Rejecting."); + return AudioDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_CANCELED, + __func__); + } + + if (mShutdown) { + NS_WARNING("RequestAudioData on shutdown MediaFormatReader!"); + return AudioDataPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_CANCELED, + __func__); + } + + RefPtr<AudioDataPromise> p = mAudio.EnsurePromise(__func__); + ScheduleUpdate(TrackInfo::kAudioTrack); + + return p; +} + +void MediaFormatReader::DoDemuxAudio() { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxAudio", MEDIA_PLAYBACK); + using SamplesPromise = MediaTrackDemuxer::SamplesPromise; + + DDLOG(DDLogCategory::Log, "audio_demuxing", DDNoValue{}); + PerformanceRecorder<PlaybackStage> perfRecorder(MediaStage::RequestDemux); + auto p = mAudio.mTrackDemuxer->GetSamples(1); + + RefPtr<MediaFormatReader> self = this; + if (mAudio.mFirstDemuxedSampleTime.isNothing()) { + p = p->Then( + OwnerThread(), __func__, + [self](RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxAudio:Resolved", + MEDIA_PLAYBACK); + DDLOGEX(self.get(), DDLogCategory::Log, "audio_first_demuxed", + DDNoValue{}); + self->OnFirstDemuxCompleted(TrackInfo::kAudioTrack, aSamples); + return SamplesPromise::CreateAndResolve(aSamples.forget(), __func__); + }, + [self](const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::DoDemuxAudio:Rejected", + MEDIA_PLAYBACK); + DDLOGEX(self.get(), DDLogCategory::Log, "audio_first_demuxing_error", + aError); + self->OnFirstDemuxFailed(TrackInfo::kAudioTrack, aError); + return SamplesPromise::CreateAndReject(aError, __func__); + }); + } + + p->Then( + OwnerThread(), __func__, + [self, perfRecorder(std::move(perfRecorder))]( + RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) mutable { + perfRecorder.Record(); + self->OnAudioDemuxCompleted(std::move(aSamples)); + }, + [self](const MediaResult& aError) { self->OnAudioDemuxFailed(aError); }) + ->Track(mAudio.mDemuxRequest); +} + +void MediaFormatReader::OnAudioDemuxCompleted( + RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) { + LOGV("%zu audio samples demuxed (sid:%d)", aSamples->GetSamples().Length(), + aSamples->GetSamples()[0]->mTrackInfo + ? aSamples->GetSamples()[0]->mTrackInfo->GetID() + : 0); + DDLOG(DDLogCategory::Log, "audio_demuxed_samples", + uint64_t(aSamples->GetSamples().Length())); + mAudio.mDemuxRequest.Complete(); + mAudio.mQueuedSamples.AppendElements(aSamples->GetSamples()); + ScheduleUpdate(TrackInfo::kAudioTrack); +} + +void MediaFormatReader::NotifyNewOutput( + TrackType aTrack, MediaDataDecoder::DecodedData&& aResults) { + AUTO_PROFILER_LABEL("MediaFormatReader::NotifyNewOutput", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + if (aResults.IsEmpty()) { + DDLOG(DDLogCategory::Log, + aTrack == TrackInfo::kAudioTrack ? "decoded_audio" : "decoded_video", + "no output samples"); + } else + for (auto&& sample : aResults) { + if (DecoderDoctorLogger::IsDDLoggingEnabled()) { + switch (sample->mType) { + case MediaData::Type::AUDIO_DATA: + DDLOGPR(DDLogCategory::Log, + aTrack == TrackInfo::kAudioTrack ? "decoded_audio" + : "decoded_got_audio!?", + "{\"type\":\"AudioData\", \"offset\":%" PRIi64 + ", \"time_us\":%" PRIi64 ", \"timecode_us\":%" PRIi64 + ", \"duration_us\":%" PRIi64 ", \"frames\":%" PRIu32 + ", \"channels\":%" PRIu32 ", \"rate\":%" PRIu32 + ", \"bytes\":%zu}", + sample->mOffset, sample->mTime.ToMicroseconds(), + sample->mTimecode.ToMicroseconds(), + sample->mDuration.ToMicroseconds(), + sample->As<AudioData>()->Frames(), + sample->As<AudioData>()->mChannels, + sample->As<AudioData>()->mRate, + sample->As<AudioData>()->Data().Length()); + break; + case MediaData::Type::VIDEO_DATA: + DDLOGPR(DDLogCategory::Log, + aTrack == TrackInfo::kVideoTrack ? "decoded_video" + : "decoded_got_video!?", + "{\"type\":\"VideoData\", \"offset\":%" PRIi64 + ", \"time_us\":%" PRIi64 ", \"timecode_us\":%" PRIi64 + ", \"duration_us\":%" PRIi64 + ", \"kf\":%s, \"size\":[%" PRIi32 ",%" PRIi32 "]}", + sample->mOffset, sample->mTime.ToMicroseconds(), + sample->mTimecode.ToMicroseconds(), + sample->mDuration.ToMicroseconds(), + sample->mKeyframe ? "true" : "false", + sample->As<VideoData>()->mDisplay.width, + sample->As<VideoData>()->mDisplay.height); + break; + case MediaData::Type::RAW_DATA: + DDLOGPR(DDLogCategory::Log, + aTrack == TrackInfo::kAudioTrack ? "decoded_audio" + : aTrack == TrackInfo::kVideoTrack ? "decoded_video" + : "decoded_?", + "{\"type\":\"RawData\", \"offset\":%" PRIi64 + " \"time_us\":%" PRIi64 ", \"timecode_us\":%" PRIi64 + ", \"duration_us\":%" PRIi64 ", \"kf\":%s}", + sample->mOffset, sample->mTime.ToMicroseconds(), + sample->mTimecode.ToMicroseconds(), + sample->mDuration.ToMicroseconds(), + sample->mKeyframe ? "true" : "false"); + break; + case MediaData::Type::NULL_DATA: + DDLOGPR(DDLogCategory::Log, + aTrack == TrackInfo::kAudioTrack ? "decoded_audio" + : aTrack == TrackInfo::kVideoTrack ? "decoded_video" + : "decoded_?", + "{\"type\":\"NullData\", \"offset\":%" PRIi64 + " \"time_us\":%" PRIi64 ", \"timecode_us\":%" PRIi64 + ", \"duration_us\":%" PRIi64 ", \"kf\":%s}", + sample->mOffset, sample->mTime.ToMicroseconds(), + sample->mTimecode.ToMicroseconds(), + sample->mDuration.ToMicroseconds(), + sample->mKeyframe ? "true" : "false"); + break; + } + } + LOGV("Received new %s sample time:%" PRId64 " duration:%" PRId64, + TrackTypeToStr(aTrack), sample->mTime.ToMicroseconds(), + sample->mDuration.ToMicroseconds()); + decoder.mOutput.AppendElement(sample); + decoder.mNumSamplesOutput++; + decoder.mNumOfConsecutiveDecodingError = 0; + decoder.mNumOfConsecutiveRDDOrGPUCrashes = 0; + if (aTrack == TrackInfo::kAudioTrack) { + decoder.mNumOfConsecutiveUtilityCrashes = 0; + } + } + LOG("Done processing new %s samples", TrackTypeToStr(aTrack)); + + if (!aResults.IsEmpty()) { + // We have decoded our first frame, we can now starts to skip future errors. + decoder.mFirstFrameTime.reset(); + } + ScheduleUpdate(aTrack); +} + +void MediaFormatReader::NotifyError(TrackType aTrack, + const MediaResult& aError) { + MOZ_ASSERT(OnTaskQueue()); + NS_WARNING(aError.Description().get()); + LOGV("%s Decoding error", TrackTypeToStr(aTrack)); + auto& decoder = GetDecoderData(aTrack); + decoder.mError = decoder.HasFatalError() ? decoder.mError : Some(aError); + + ScheduleUpdate(aTrack); +} + +void MediaFormatReader::NotifyWaitingForData(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + decoder.mWaitingForData = true; + if (decoder.mTimeThreshold) { + decoder.mTimeThreshold.ref().mWaiting = true; + } + ScheduleUpdate(aTrack); +} + +void MediaFormatReader::NotifyWaitingForKey(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + mOnWaitingForKey.Notify(); + if (!decoder.mDecodeRequest.Exists()) { + LOGV("WaitingForKey received while no pending decode. Ignoring"); + return; + } + decoder.mWaitingForKey = true; + ScheduleUpdate(aTrack); +} + +void MediaFormatReader::NotifyEndOfStream(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + decoder.mDemuxEOS = true; + ScheduleUpdate(aTrack); +} + +bool MediaFormatReader::NeedInput(DecoderData& aDecoder) { + // The decoder will not be fed a new raw sample until the current decoding + // requests has completed. + return (aDecoder.HasPromise() || aDecoder.mTimeThreshold.isSome()) && + !aDecoder.HasPendingDrain() && !aDecoder.HasFatalError() && + !aDecoder.mDemuxRequest.Exists() && !aDecoder.mOutput.Length() && + !aDecoder.HasInternalSeekPending() && + !aDecoder.mDecodeRequest.Exists(); +} + +void MediaFormatReader::ScheduleUpdate(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + if (mShutdown) { + return; + } + auto& decoder = GetDecoderData(aTrack); + MOZ_RELEASE_ASSERT(decoder.GetCurrentInfo(), + "Can only schedule update when track exists"); + + if (decoder.mUpdateScheduled) { + return; + } + LOGV("SchedulingUpdate(%s)", TrackTypeToStr(aTrack)); + decoder.mUpdateScheduled = true; + RefPtr<nsIRunnable> task(NewRunnableMethod<TrackType>( + "MediaFormatReader::Update", this, &MediaFormatReader::Update, aTrack)); + nsresult rv = OwnerThread()->Dispatch(task.forget()); + MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv)); + Unused << rv; +} + +bool MediaFormatReader::UpdateReceivedNewData(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + + if (!decoder.mReceivedNewData) { + return false; + } + + // We do not want to clear mWaitingForData while there are pending + // demuxing or seeking operations that could affect the value of this flag. + // This is in order to ensure that we will retry once they complete as we may + // now have new data that could potentially allow those operations to + // successfully complete if tried again. + if (decoder.mSeekRequest.Exists()) { + // Nothing more to do until this operation complete. + return true; + } + + if (aTrack == TrackType::kVideoTrack && mSkipRequest.Exists()) { + LOGV("Skipping in progress, nothing more to do"); + return true; + } + + if (decoder.mDemuxRequest.Exists()) { + // We may have pending operations to process, so we want to continue + // after UpdateReceivedNewData returns. + return false; + } + + if (decoder.HasPendingDrain()) { + // We do not want to clear mWaitingForData or mDemuxEOS while + // a drain is in progress in order to properly complete the operation. + return false; + } + + decoder.mReceivedNewData = false; + if (decoder.mTimeThreshold) { + decoder.mTimeThreshold.ref().mWaiting = false; + } + decoder.mWaitingForData = false; + + if (decoder.HasFatalError()) { + return false; + } + + if (!mSeekPromise.IsEmpty() && + (!IsVideoOnlySeeking() || aTrack == TrackInfo::kVideoTrack)) { + MOZ_ASSERT(!decoder.HasPromise()); + MOZ_DIAGNOSTIC_ASSERT( + (IsVideoOnlySeeking() || !mAudio.mTimeThreshold) && + !mVideo.mTimeThreshold, + "InternalSeek must have been aborted when Seek was first called"); + MOZ_DIAGNOSTIC_ASSERT( + (IsVideoOnlySeeking() || !mAudio.HasWaitingPromise()) && + !mVideo.HasWaitingPromise(), + "Waiting promises must have been rejected when Seek was first called"); + if (mVideo.mSeekRequest.Exists() || + (!IsVideoOnlySeeking() && mAudio.mSeekRequest.Exists())) { + // Already waiting for a seek to complete. Nothing more to do. + return true; + } + LOG("Attempting Seek"); + ScheduleSeek(); + return true; + } + if (decoder.HasInternalSeekPending() || decoder.HasWaitingPromise()) { + if (decoder.HasInternalSeekPending()) { + LOG("Attempting Internal Seek"); + InternalSeek(aTrack, decoder.mTimeThreshold.ref()); + } + if (decoder.HasWaitingPromise() && !decoder.IsWaitingForKey() && + !decoder.IsWaitingForData()) { + MOZ_ASSERT(!decoder.HasPromise()); + LOG("We have new data. Resolving WaitingPromise"); + decoder.mWaitingPromise.Resolve(decoder.mType, __func__); + } + return true; + } + return false; +} + +void MediaFormatReader::RequestDemuxSamples(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + MOZ_ASSERT(!decoder.mDemuxRequest.Exists()); + + if (!decoder.mQueuedSamples.IsEmpty()) { + // No need to demux new samples. + return; + } + + if (decoder.mDemuxEOS) { + // Nothing left to demux. + // We do not want to attempt to demux while in waiting for data mode + // as it would retrigger an unnecessary drain. + return; + } + + LOGV("Requesting extra demux %s", TrackTypeToStr(aTrack)); + if (aTrack == TrackInfo::kVideoTrack) { + DoDemuxVideo(); + } else { + DoDemuxAudio(); + } +} + +void MediaFormatReader::DecodeDemuxedSamples(TrackType aTrack, + MediaRawData* aSample) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + RefPtr<MediaFormatReader> self = this; + decoder.mFlushed = false; + DDLOGPR(DDLogCategory::Log, + aTrack == TrackInfo::kAudioTrack ? "decode_audio" + : aTrack == TrackInfo::kVideoTrack ? "decode_video" + : "decode_?", + "{\"type\":\"MediaRawData\", \"offset\":%" PRIi64 + ", \"bytes\":%zu, \"time_us\":%" PRIi64 ", \"timecode_us\":%" PRIi64 + ", \"duration_us\":%" PRIi64 ",%s%s}", + aSample->mOffset, aSample->Size(), aSample->mTime.ToMicroseconds(), + aSample->mTimecode.ToMicroseconds(), + aSample->mDuration.ToMicroseconds(), aSample->mKeyframe ? " kf" : "", + aSample->mEOS ? " eos" : ""); + + const int32_t height = + aTrack == TrackInfo::kVideoTrack + ? decoder.GetCurrentInfo()->GetAsVideoInfo()->mImage.height + : 0; + MediaInfoFlag flag = MediaInfoFlag::None; + flag |= + aSample->mKeyframe ? MediaInfoFlag::KeyFrame : MediaInfoFlag::NonKeyFrame; + if (aTrack == TrackInfo::kVideoTrack) { + flag |= VideoIsHardwareAccelerated() ? MediaInfoFlag::HardwareDecoding + : MediaInfoFlag::SoftwareDecoding; + const nsCString& mimeType = decoder.GetCurrentInfo()->mMimeType; + if (MP4Decoder::IsH264(mimeType)) { + flag |= MediaInfoFlag::VIDEO_H264; + } else if (VPXDecoder::IsVPX(mimeType, VPXDecoder::VP8)) { + flag |= MediaInfoFlag::VIDEO_VP8; + } else if (VPXDecoder::IsVPX(mimeType, VPXDecoder::VP9)) { + flag |= MediaInfoFlag::VIDEO_VP9; + } +#ifdef MOZ_AV1 + else if (AOMDecoder::IsAV1(mimeType)) { + flag |= MediaInfoFlag::VIDEO_AV1; + } +#endif + } + PerformanceRecorder<PlaybackStage> perfRecorder(MediaStage::RequestDecode, + height, flag); + if (mMediaEngineId && aSample->mCrypto.IsEncrypted()) { + aSample->mShouldCopyCryptoToRemoteRawData = true; + } + decoder.mDecoder->Decode(aSample) + ->Then( + mTaskQueue, __func__, + [self, aTrack, &decoder, perfRecorder(std::move(perfRecorder))]( + MediaDataDecoder::DecodedData&& aResults) mutable { + perfRecorder.Record(); + decoder.mDecodeRequest.Complete(); + self->NotifyNewOutput(aTrack, std::move(aResults)); + }, + [self, aTrack, &decoder](const MediaResult& aError) { + decoder.mDecodeRequest.Complete(); + self->NotifyError(aTrack, aError); + }) + ->Track(decoder.mDecodeRequest); +} + +void MediaFormatReader::HandleDemuxedSamples( + TrackType aTrack, FrameStatistics::AutoNotifyDecoded& aA) { + MOZ_ASSERT(OnTaskQueue()); + + auto& decoder = GetDecoderData(aTrack); + + if (decoder.mFlushing) { + LOGV("Decoder operation in progress, let it complete."); + return; + } + + if (decoder.mQueuedSamples.IsEmpty()) { + return; + } + + RefPtr<MediaRawData> sample = decoder.mQueuedSamples[0]; + const RefPtr<TrackInfoSharedPtr> info = sample->mTrackInfo; + + if (info && decoder.mLastStreamSourceID != info->GetID()) { + nsTArray<RefPtr<MediaRawData>> samples; + if (decoder.mDecoder) { + bool recyclable = + StaticPrefs::media_decoder_recycle_enabled() && + decoder.mDecoder->SupportDecoderRecycling() && + (*info)->mCrypto.mCryptoScheme == + decoder.GetCurrentInfo()->mCrypto.mCryptoScheme && + (*info)->mMimeType == decoder.GetCurrentInfo()->mMimeType; + if (!recyclable && decoder.mTimeThreshold.isNothing() && + (decoder.mNextStreamSourceID.isNothing() || + decoder.mNextStreamSourceID.ref() != info->GetID())) { + LOG("%s stream id has changed from:%d to:%d, draining decoder.", + TrackTypeToStr(aTrack), decoder.mLastStreamSourceID, info->GetID()); + decoder.RequestDrain(); + decoder.mNextStreamSourceID = Some(info->GetID()); + ScheduleUpdate(aTrack); + return; + } + + // If flushing is required, it will clear our array of queued samples. + // So we may need to make a copy. + samples = decoder.mQueuedSamples.Clone(); + if (!recyclable) { + LOG("Decoder does not support recycling, recreate decoder."); + ShutdownDecoder(aTrack); + // We're going to be using a new decoder following the change of content + // We can attempt to use hardware decoding again. + decoder.mHardwareDecodingDisabled = false; + } else if (decoder.HasWaitingPromise()) { + decoder.Flush(); + } + } + + nsPrintfCString markerString( + "%s stream id changed from:%" PRIu32 " to:%" PRIu32, + TrackTypeToStr(aTrack), decoder.mLastStreamSourceID, info->GetID()); + PROFILER_MARKER_TEXT("StreamID Change", MEDIA_PLAYBACK, {}, markerString); + LOG("%s", markerString.get()); + + if (aTrack == TrackInfo::kVideoTrack) { + // We are about to create a new decoder thus the benchmark, + // up to this point, is stored. + NotifyDecoderBenchmarkStore(); + } + decoder.mNextStreamSourceID.reset(); + decoder.mLastStreamSourceID = info->GetID(); + decoder.mInfo = info; + { + MutexAutoLock lock(decoder.mMutex); + if (aTrack == TrackInfo::kAudioTrack) { + decoder.mWorkingInfo = MakeUnique<AudioInfo>(*info->GetAsAudioInfo()); + } else if (aTrack == TrackInfo::kVideoTrack) { + decoder.mWorkingInfo = MakeUnique<VideoInfo>(*info->GetAsVideoInfo()); + } + mWorkingInfoChanged = true; + } + + decoder.mMeanRate.Reset(); + + if (sample->mKeyframe) { + if (samples.Length()) { + decoder.mQueuedSamples = std::move(samples); + } + } else { + auto time = TimeInterval(sample->mTime, sample->GetEndTime()); + InternalSeekTarget seekTarget = + decoder.mTimeThreshold.refOr(InternalSeekTarget(time, false)); + LOG("Stream change occurred on a non-keyframe. Seeking to:%" PRId64, + sample->mTime.ToMicroseconds()); + InternalSeek(aTrack, seekTarget); + return; + } + } + + // Calculate the average frame rate. The first frame will be accounted + // for twice. + decoder.mMeanRate.Update(sample->mDuration); + + if (!decoder.mDecoder) { + // In Clear Lead situation, the `mInfo` could change from unencrypted to + // encrypted so we need to ensure the CDM proxy is ready before creating a + // decoder. + if (decoder.IsEncrypted() && + (IsWaitingOnCDMResource() || !ResolveSetCDMPromiseIfDone(aTrack))) { + return; + } + mDecoderFactory->CreateDecoder(aTrack); + return; + } + + LOGV("Input:%" PRId64 " (dts:%" PRId64 " kf:%d)", + sample->mTime.ToMicroseconds(), sample->mTimecode.ToMicroseconds(), + sample->mKeyframe); + decoder.mNumSamplesInput++; + decoder.mSizeOfQueue++; + if (aTrack == TrackInfo::kVideoTrack) { + aA.mStats.mParsedFrames++; + } + + DecodeDemuxedSamples(aTrack, sample); + + decoder.mQueuedSamples.RemoveElementAt(0); +} + +media::TimeUnit MediaFormatReader::GetInternalSeekTargetEndTime() const { + MOZ_ASSERT(OnTaskQueue()); + return mVideo.mTimeThreshold ? mVideo.mTimeThreshold->EndTime() + : TimeUnit::FromInfinity(); +} + +void MediaFormatReader::InternalSeek(TrackType aTrack, + const InternalSeekTarget& aTarget) { + MOZ_ASSERT(OnTaskQueue()); + LOG("%s internal seek to %f", TrackTypeToStr(aTrack), + aTarget.Time().ToSeconds()); + + auto& decoder = GetDecoderData(aTrack); + decoder.Flush(); + decoder.ResetDemuxer(); + decoder.mTimeThreshold = Some(aTarget); + DDLOG(DDLogCategory::Log, "seeking", DDNoValue{}); + RefPtr<MediaFormatReader> self = this; + decoder.mTrackDemuxer->Seek(decoder.mTimeThreshold.ref().Time()) + ->Then( + OwnerThread(), __func__, + [self, aTrack](TimeUnit aTime) { + DDLOGEX(self.get(), DDLogCategory::Log, "seeked", DDNoValue{}); + auto& decoder = self->GetDecoderData(aTrack); + decoder.mSeekRequest.Complete(); + MOZ_ASSERT(decoder.mTimeThreshold, + "Seek promise must be disconnected when " + "timethreshold is reset"); + decoder.mTimeThreshold.ref().mHasSeeked = true; + self->SetVideoDecodeThreshold(); + self->ScheduleUpdate(aTrack); + }, + [self, aTrack](const MediaResult& aError) { + auto& decoder = self->GetDecoderData(aTrack); + decoder.mSeekRequest.Complete(); + switch (aError.Code()) { + case NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA: + DDLOGEX(self.get(), DDLogCategory::Log, "seeking_interrupted", + aError); + self->NotifyWaitingForData(aTrack); + break; + case NS_ERROR_DOM_MEDIA_END_OF_STREAM: + DDLOGEX(self.get(), DDLogCategory::Log, "seeking_interrupted", + aError); + decoder.mTimeThreshold.reset(); + self->NotifyEndOfStream(aTrack); + break; + case NS_ERROR_DOM_MEDIA_CANCELED: + DDLOGEX(self.get(), DDLogCategory::Log, "seeking_interrupted", + aError); + decoder.mTimeThreshold.reset(); + break; + default: + DDLOGEX(self.get(), DDLogCategory::Log, "seeking_error", + aError); + decoder.mTimeThreshold.reset(); + self->NotifyError(aTrack, aError); + break; + } + }) + ->Track(decoder.mSeekRequest); +} + +void MediaFormatReader::DrainDecoder(TrackType aTrack) { + AUTO_PROFILER_LABEL("MediaFormatReader::DrainDecoder", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + auto& decoder = GetDecoderData(aTrack); + if (decoder.mDrainState == DrainState::Draining) { + return; + } + if (!decoder.mDecoder || + (decoder.mDrainState != DrainState::PartialDrainPending && + decoder.mNumSamplesInput == decoder.mNumSamplesOutput)) { + // No frames to drain. + LOGV("Draining %s with nothing to drain", TrackTypeToStr(aTrack)); + decoder.mDrainState = DrainState::DrainAborted; + ScheduleUpdate(aTrack); + return; + } + + decoder.mDrainState = DrainState::Draining; + + DDLOG(DDLogCategory::Log, "draining", DDNoValue{}); + RefPtr<MediaFormatReader> self = this; + decoder.mDecoder->Drain() + ->Then( + mTaskQueue, __func__, + [self, aTrack, &decoder](MediaDataDecoder::DecodedData&& aResults) { + decoder.mDrainRequest.Complete(); + DDLOGEX(self.get(), DDLogCategory::Log, "drained", DDNoValue{}); + if (aResults.IsEmpty()) { + decoder.mDrainState = DrainState::DrainCompleted; + } else { + self->NotifyNewOutput(aTrack, std::move(aResults)); + // Let's see if we have any more data available to drain. + decoder.mDrainState = DrainState::PartialDrainPending; + } + self->ScheduleUpdate(aTrack); + }, + [self, aTrack, &decoder](const MediaResult& aError) { + decoder.mDrainRequest.Complete(); + DDLOGEX(self.get(), DDLogCategory::Log, "draining_error", aError); + self->NotifyError(aTrack, aError); + }) + ->Track(decoder.mDrainRequest); + LOG("Requesting %s decoder to drain", TrackTypeToStr(aTrack)); +} + +void MediaFormatReader::Update(TrackType aTrack) { + AUTO_PROFILER_LABEL("MediaFormatReader::Update", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + if (mShutdown) { + return; + } + + LOGV("Processing update for %s", TrackTypeToStr(aTrack)); + + bool needOutput = false; + auto& decoder = GetDecoderData(aTrack); + decoder.mUpdateScheduled = false; + + if (!mInitDone) { + return; + } + + if (aTrack == TrackType::kVideoTrack && mSkipRequest.Exists()) { + LOGV("Skipping in progress, nothing more to do"); + return; + } + + if (UpdateReceivedNewData(aTrack)) { + LOGV("Nothing more to do"); + return; + } + + if (decoder.mSeekRequest.Exists()) { + LOGV("Seeking hasn't completed, nothing more to do"); + return; + } + + MOZ_DIAGNOSTIC_ASSERT( + !decoder.HasInternalSeekPending() || + (!decoder.mOutput.Length() && !decoder.mQueuedSamples.Length()), + "No frames can be demuxed or decoded while an internal seek is pending"); + + // Record number of frames decoded and parsed. Automatically update the + // stats counters using the AutoNotifyDecoded stack-based class. + FrameStatistics::AutoNotifyDecoded a(mFrameStats); + + // Drop any frames found prior our internal seek target. + while (decoder.mTimeThreshold && decoder.mOutput.Length()) { + RefPtr<MediaData>& output = decoder.mOutput[0]; + InternalSeekTarget target = decoder.mTimeThreshold.ref(); + auto time = output->mTime; + if (time >= target.Time()) { + // We have reached our internal seek target. + decoder.mTimeThreshold.reset(); + // We might have dropped some keyframes. + mPreviousDecodedKeyframeTime_us = sNoPreviousDecodedKeyframe; + } + if (time < target.Time() || (target.mDropTarget && target.Contains(time))) { + LOGV("Internal Seeking: Dropping %s frame time:%f wanted:%f (kf:%d)", + TrackTypeToStr(aTrack), output->mTime.ToSeconds(), + target.Time().ToSeconds(), output->mKeyframe); + decoder.mOutput.RemoveElementAt(0); + decoder.mSizeOfQueue -= 1; + } + } + + while (decoder.mOutput.Length() && + decoder.mOutput[0]->mType == MediaData::Type::NULL_DATA) { + LOGV("Dropping null data. Time: %" PRId64, + decoder.mOutput[0]->mTime.ToMicroseconds()); + decoder.mOutput.RemoveElementAt(0); + decoder.mSizeOfQueue -= 1; + } + + if (decoder.HasPromise()) { + needOutput = true; + if (decoder.mOutput.Length()) { + RefPtr<MediaData> output = decoder.mOutput[0]; + decoder.mOutput.RemoveElementAt(0); + decoder.mSizeOfQueue -= 1; + decoder.mLastDecodedSampleTime = + Some(TimeInterval(output->mTime, output->GetEndTime())); + decoder.mNumSamplesOutputTotal++; + ReturnOutput(output, aTrack); + // We have a decoded sample ready to be returned. + if (aTrack == TrackType::kVideoTrack) { + uint64_t delta = + decoder.mNumSamplesOutputTotal - mLastReportedNumDecodedFrames; + a.mStats.mDecodedFrames = static_cast<uint32_t>(delta); + mLastReportedNumDecodedFrames = decoder.mNumSamplesOutputTotal; + if (output->mKeyframe) { + if (mPreviousDecodedKeyframeTime_us < + output->mTime.ToMicroseconds()) { + // There is a previous keyframe -> Record inter-keyframe stats. + uint64_t segment_us = output->mTime.ToMicroseconds() - + mPreviousDecodedKeyframeTime_us; + a.mStats.mInterKeyframeSum_us += segment_us; + a.mStats.mInterKeyframeCount += 1; + if (a.mStats.mInterKeyFrameMax_us < segment_us) { + a.mStats.mInterKeyFrameMax_us = segment_us; + } + } + mPreviousDecodedKeyframeTime_us = output->mTime.ToMicroseconds(); + } + bool wasHardwareAccelerated = mVideo.mIsHardwareAccelerated; + nsCString error; + mVideo.mIsHardwareAccelerated = + mVideo.mDecoder && mVideo.mDecoder->IsHardwareAccelerated(error); + VideoData* videoData = output->As<VideoData>(); + if (!mVideo.mHasReportedVideoHardwareSupportTelemtry || + wasHardwareAccelerated != mVideo.mIsHardwareAccelerated) { + mVideo.mHasReportedVideoHardwareSupportTelemtry = true; + Telemetry::ScalarSet( + Telemetry::ScalarID::MEDIA_VIDEO_HARDWARE_DECODING_SUPPORT, + NS_ConvertUTF8toUTF16(mVideo.GetCurrentInfo()->mMimeType), + !!mVideo.mIsHardwareAccelerated); + static constexpr gfx::IntSize HD_VIDEO_SIZE{1280, 720}; + if (videoData->mDisplay.width >= HD_VIDEO_SIZE.Width() && + videoData->mDisplay.height >= HD_VIDEO_SIZE.Height()) { + Telemetry::ScalarSet( + Telemetry::ScalarID::MEDIA_VIDEO_HD_HARDWARE_DECODING_SUPPORT, + NS_ConvertUTF8toUTF16(mVideo.GetCurrentInfo()->mMimeType), + !!mVideo.mIsHardwareAccelerated); + } + } +#ifdef XP_WIN + // D3D11_YCBCR_IMAGE images are GPU based, we try to limit the amount + // of GPU RAM used. + mVideo.mIsHardwareAccelerated = + mVideo.mIsHardwareAccelerated || + (videoData->mImage && + videoData->mImage->GetFormat() == ImageFormat::D3D11_YCBCR_IMAGE); +#endif + } + } else if (decoder.HasFatalError()) { + nsCString mimeType = decoder.GetCurrentInfo()->mMimeType; + if (!mimeType.IsEmpty()) { + Telemetry::ScalarAdd( + Telemetry::ScalarID::MEDIA_DECODE_ERROR_PER_MIME_TYPE, + NS_ConvertUTF8toUTF16(mimeType), 1 /* error count */); + } + LOG("Rejecting %s promise for %s : DECODE_ERROR", TrackTypeToStr(aTrack), + mimeType.get()); + decoder.RejectPromise(decoder.mError.ref(), __func__); + return; + } else if (decoder.HasCompletedDrain()) { + if (decoder.mDemuxEOS) { + LOG("Rejecting %s promise: EOS", TrackTypeToStr(aTrack)); + if (aTrack == TrackInfo::kVideoTrack) { + // End of video, store the benchmark of the decoder. + NotifyDecoderBenchmarkStore(); + } + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_END_OF_STREAM, __func__); + } else if (decoder.mWaitingForData) { + if (decoder.mDrainState == DrainState::DrainCompleted && + decoder.mLastDecodedSampleTime && !decoder.mNextStreamSourceID) { + // We have completed draining the decoder following WaitingForData. + // Set up the internal seek machinery to be able to resume from the + // last sample decoded. + LOG("Seeking to last sample time: %" PRId64, + decoder.mLastDecodedSampleTime.ref().mStart.ToMicroseconds()); + InternalSeek(aTrack, InternalSeekTarget( + decoder.mLastDecodedSampleTime.ref(), true)); + } + if (!decoder.mReceivedNewData) { + LOG("Rejecting %s promise: WAITING_FOR_DATA", TrackTypeToStr(aTrack)); + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA, __func__); + } + } + + decoder.mDrainState = DrainState::None; + + // Now that draining has completed, we check if we have received + // new data again as the result may now be different from the earlier + // run. + if (UpdateReceivedNewData(aTrack) || decoder.mSeekRequest.Exists()) { + LOGV("Nothing more to do"); + return; + } + } else if (decoder.mDemuxEOS && !decoder.HasPendingDrain() && + decoder.mQueuedSamples.IsEmpty()) { + // It is possible to transition from WAITING_FOR_DATA directly to EOS + // state during the internal seek; in which case no draining would occur. + // There is no more samples left to be decoded and we are already in + // EOS state. We can immediately reject the data promise. + LOG("Rejecting %s promise: EOS", TrackTypeToStr(aTrack)); + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_END_OF_STREAM, __func__); + } else if (decoder.mWaitingForKey) { + LOG("Rejecting %s promise: WAITING_FOR_DATA due to waiting for key", + TrackTypeToStr(aTrack)); + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA, __func__); + } else if (IsDecoderWaitingForCDM(aTrack)) { + // Rejecting the promise could lead to entering buffering state for MDSM, + // once a qualified(with the same key system and sessions created by the + // same InitData) new cdm proxy is set, decoding can be resumed. + LOG("Rejecting %s promise: WAITING_FOR_DATA due to waiting for CDM", + TrackTypeToStr(aTrack)); + decoder.RejectPromise(NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA, __func__); + } + } + + if (decoder.mDrainState == DrainState::DrainRequested || + decoder.mDrainState == DrainState::PartialDrainPending) { + if (decoder.mOutput.IsEmpty()) { + DrainDecoder(aTrack); + } + return; + } + + if (decoder.mError && !decoder.HasFatalError()) { + MOZ_RELEASE_ASSERT(!decoder.HasInternalSeekPending(), + "No error can occur while an internal seek is pending"); + + nsCString error; + bool firstFrameDecodingFailedWithHardware = + decoder.mFirstFrameTime && + decoder.mError.ref() == NS_ERROR_DOM_MEDIA_DECODE_ERR && + decoder.mDecoder && decoder.mDecoder->IsHardwareAccelerated(error) && + !decoder.mHardwareDecodingDisabled; + bool needsNewDecoder = + decoder.mError.ref() == NS_ERROR_DOM_MEDIA_NEED_NEW_DECODER || + firstFrameDecodingFailedWithHardware; + // Limit number of process restarts after crash + if ((decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_RDD_OR_GPU_ERR && + decoder.mNumOfConsecutiveRDDOrGPUCrashes++ < + decoder.mMaxConsecutiveRDDOrGPUCrashes) || + (decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_UTILITY_ERR && + decoder.mNumOfConsecutiveUtilityCrashes++ < + decoder.mMaxConsecutiveUtilityCrashes)) { + needsNewDecoder = true; + } + // For MF CDM crash, it needs to be handled differently. We need to shutdown + // current decoder and report that error to the state machine in order to + // let it to determine if playback can keep going or not. + if (decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_MF_CDM_ERR) { + LOG("Error: notify MF CDM crash and shutdown %s decoder", + TrackTypeToStr(aTrack)); + ShutdownDecoder(aTrack); + decoder.RejectPromise(decoder.mError.ref(), __func__); + decoder.mError.reset(); + return; + } +#ifdef XP_LINUX + // We failed to decode on Linux with HW decoder, + // give it another try without HW decoder. + if (decoder.mError.ref() == NS_ERROR_DOM_MEDIA_DECODE_ERR && + decoder.mDecoder->IsHardwareAccelerated(error)) { + LOG("Error: %s decode error, disable HW acceleration", + TrackTypeToStr(aTrack)); + needsNewDecoder = true; + decoder.mHardwareDecodingDisabled = true; + } + // RDD process crashed on Linux, give it another try without HW decoder. + if (decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_RDD_OR_GPU_ERR) { + LOG("Error: %s remote decoder crashed, disable HW acceleration", + TrackTypeToStr(aTrack)); + decoder.mHardwareDecodingDisabled = true; + } +#endif + // We don't want to expose crash error so switch to + // NS_ERROR_DOM_MEDIA_DECODE_ERR. + if (decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_RDD_OR_GPU_ERR || + decoder.mError.ref() == + NS_ERROR_DOM_MEDIA_REMOTE_DECODER_CRASHED_UTILITY_ERR) { + decoder.mError = Some(MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR, + RESULT_DETAIL("Unable to decode"))); + } + if (!needsNewDecoder && ++decoder.mNumOfConsecutiveDecodingError > + decoder.mMaxConsecutiveDecodingError) { + DDLOG(DDLogCategory::Log, "too_many_decode_errors", decoder.mError.ref()); + NotifyError(aTrack, decoder.mError.ref()); + return; + } + + if (firstFrameDecodingFailedWithHardware) { + decoder.mHardwareDecodingDisabled = true; + } + decoder.mError.reset(); + + LOG("%s decoded error count %d RDD crashes count %d", + TrackTypeToStr(aTrack), decoder.mNumOfConsecutiveDecodingError, + decoder.mNumOfConsecutiveRDDOrGPUCrashes); + + if (needsNewDecoder) { + LOG("Error: %s needs a new decoder", TrackTypeToStr(aTrack)); + ShutdownDecoder(aTrack); + } + if (decoder.mFirstFrameTime) { + TimeInterval seekInterval = TimeInterval(decoder.mFirstFrameTime.ref(), + decoder.mFirstFrameTime.ref()); + InternalSeek(aTrack, InternalSeekTarget(seekInterval, false)); + return; + } + + TimeUnit nextKeyframe; + if (aTrack == TrackType::kVideoTrack && + NS_SUCCEEDED( + decoder.mTrackDemuxer->GetNextRandomAccessPoint(&nextKeyframe)) && + !nextKeyframe.IsInfinite()) { + SkipVideoDemuxToNextKeyFrame( + decoder.mLastDecodedSampleTime.refOr(TimeInterval()).Length()); + } else if (aTrack == TrackType::kAudioTrack) { + decoder.Flush(); + } else { + DDLOG(DDLogCategory::Log, "no_keyframe", NS_ERROR_DOM_MEDIA_FATAL_ERR); + // We can't recover from this error. + NotifyError(aTrack, NS_ERROR_DOM_MEDIA_FATAL_ERR); + } + return; + } + + bool needInput = NeedInput(decoder); + + LOGV("Update(%s) ni=%d no=%d in:%" PRIu64 " out:%" PRIu64 + " qs=%u decoding:%d flushing:%d desc:%s pending:%u waiting:%d eos:%d " + "ds:%d sid:%u waitcdm:%d", + TrackTypeToStr(aTrack), needInput, needOutput, decoder.mNumSamplesInput, + decoder.mNumSamplesOutput, uint32_t(size_t(decoder.mSizeOfQueue)), + decoder.mDecodeRequest.Exists(), decoder.mFlushing, + decoder.mDescription.get(), uint32_t(decoder.mOutput.Length()), + decoder.mWaitingForData, decoder.mDemuxEOS, int32_t(decoder.mDrainState), + decoder.mLastStreamSourceID, IsDecoderWaitingForCDM(aTrack)); + + if (IsWaitingOnCDMResource() || !ResolveSetCDMPromiseIfDone(aTrack)) { + // If the content is encrypted, MFR won't start to create decoder until + // CDMProxy is set. + return; + } + + if ((decoder.IsWaitingForData() && + (!decoder.mTimeThreshold || decoder.mTimeThreshold.ref().mWaiting)) || + (decoder.IsWaitingForKey())) { + // Nothing more we can do at present. + LOGV("Still waiting for data or key. data(%d)/key(%d)", + decoder.mWaitingForData, decoder.mWaitingForKey); + return; + } + + if (decoder.CancelWaitingForKey()) { + LOGV("No longer waiting for key. Resolving waiting promise"); + return; + } + + if (!needInput) { + LOGV("No need for additional input (pending:%u)", + uint32_t(decoder.mOutput.Length())); + return; + } + + // Demux samples if we don't have some. + RequestDemuxSamples(aTrack); + + HandleDemuxedSamples(aTrack, a); +} + +void MediaFormatReader::ReturnOutput(MediaData* aData, TrackType aTrack) { + AUTO_PROFILER_LABEL("MediaFormatReader::ReturnOutput", MEDIA_PLAYBACK); + MOZ_ASSERT(GetDecoderData(aTrack).HasPromise()); + MOZ_DIAGNOSTIC_ASSERT(aData->mType != MediaData::Type::NULL_DATA); + LOG("Resolved data promise for %s [%" PRId64 ", %" PRId64 "]", + TrackTypeToStr(aTrack), aData->mTime.ToMicroseconds(), + aData->GetEndTime().ToMicroseconds()); + + if (aTrack == TrackInfo::kAudioTrack) { + AudioData* audioData = aData->As<AudioData>(); + + if (audioData->mChannels != mInfo.mAudio.mChannels || + audioData->mRate != mInfo.mAudio.mRate) { + LOG("change of audio format (rate:%d->%d). " + "This is an unsupported configuration", + mInfo.mAudio.mRate, audioData->mRate); + mInfo.mAudio.mRate = audioData->mRate; + mInfo.mAudio.mChannels = audioData->mChannels; + MutexAutoLock lock(mAudio.mMutex); + mAudio.mWorkingInfo->GetAsAudioInfo()->mRate = audioData->mRate; + mAudio.mWorkingInfo->GetAsAudioInfo()->mChannels = audioData->mChannels; + mWorkingInfoChanged = true; + } + mAudio.ResolvePromise(audioData, __func__); + } else if (aTrack == TrackInfo::kVideoTrack) { + VideoData* videoData = aData->As<VideoData>(); + + if (videoData->mDisplay != mInfo.mVideo.mDisplay) { + LOG("change of video display size (%dx%d->%dx%d)", + mInfo.mVideo.mDisplay.width, mInfo.mVideo.mDisplay.height, + videoData->mDisplay.width, videoData->mDisplay.height); + mInfo.mVideo.mDisplay = videoData->mDisplay; + MutexAutoLock lock(mVideo.mMutex); + mVideo.mWorkingInfo->GetAsVideoInfo()->mDisplay = videoData->mDisplay; + mWorkingInfoChanged = true; + } + + mozilla::gfx::ColorDepth colorDepth = videoData->GetColorDepth(); + if (colorDepth != mInfo.mVideo.mColorDepth) { + LOG("change of video color depth (enum %u -> enum %u)", + (unsigned)mInfo.mVideo.mColorDepth, (unsigned)colorDepth); + mInfo.mVideo.mColorDepth = colorDepth; + MutexAutoLock lock(mVideo.mMutex); + mVideo.mWorkingInfo->GetAsVideoInfo()->mColorDepth = colorDepth; + mWorkingInfoChanged = true; + } + + TimeUnit nextKeyframe; + if (!mVideo.HasInternalSeekPending() && + NS_SUCCEEDED( + mVideo.mTrackDemuxer->GetNextRandomAccessPoint(&nextKeyframe))) { + videoData->SetNextKeyFrameTime(nextKeyframe); + } + + mVideo.ResolvePromise(videoData, __func__); + } +} + +size_t MediaFormatReader::SizeOfVideoQueueInFrames() { + return SizeOfQueue(TrackInfo::kVideoTrack); +} + +size_t MediaFormatReader::SizeOfAudioQueueInFrames() { + return SizeOfQueue(TrackInfo::kAudioTrack); +} + +size_t MediaFormatReader::SizeOfQueue(TrackType aTrack) { + auto& decoder = GetDecoderData(aTrack); + return decoder.mSizeOfQueue; +} + +RefPtr<MediaFormatReader::WaitForDataPromise> MediaFormatReader::WaitForData( + MediaData::Type aType) { + MOZ_ASSERT(OnTaskQueue()); + TrackType trackType = aType == MediaData::Type::VIDEO_DATA + ? TrackType::kVideoTrack + : TrackType::kAudioTrack; + auto& decoder = GetDecoderData(trackType); + if (!decoder.IsWaitingForData() && !decoder.IsWaitingForKey()) { + // We aren't waiting for anything. + return WaitForDataPromise::CreateAndResolve(decoder.mType, __func__); + } + RefPtr<WaitForDataPromise> p = decoder.mWaitingPromise.Ensure(__func__); + ScheduleUpdate(trackType); + return p; +} + +nsresult MediaFormatReader::ResetDecode(TrackSet aTracks) { + AUTO_PROFILER_LABEL("MediaFormatReader::ResetDecode", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOGV(""); + + mSeekPromise.RejectIfExists(NS_OK, __func__); + mSkipRequest.DisconnectIfExists(); + + // Do the same for any data wait promises. + if (aTracks.contains(TrackInfo::kAudioTrack)) { + mAudio.mWaitingPromise.RejectIfExists( + WaitForDataRejectValue(MediaData::Type::AUDIO_DATA, + WaitForDataRejectValue::CANCELED), + __func__); + } + + if (aTracks.contains(TrackInfo::kVideoTrack)) { + mVideo.mWaitingPromise.RejectIfExists( + WaitForDataRejectValue(MediaData::Type::VIDEO_DATA, + WaitForDataRejectValue::CANCELED), + __func__); + } + + // Reset miscellaneous seeking state. + mPendingSeekTime.reset(); + + if (HasVideo() && aTracks.contains(TrackInfo::kVideoTrack)) { + mVideo.ResetDemuxer(); + mVideo.mFirstFrameTime = Some(media::TimeUnit::Zero()); + Reset(TrackInfo::kVideoTrack); + if (mVideo.HasPromise()) { + mVideo.RejectPromise(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + } + + if (HasAudio() && aTracks.contains(TrackInfo::kAudioTrack)) { + mAudio.ResetDemuxer(); + mVideo.mFirstFrameTime = Some(media::TimeUnit::Zero()); + Reset(TrackInfo::kAudioTrack); + if (mAudio.HasPromise()) { + mAudio.RejectPromise(NS_ERROR_DOM_MEDIA_CANCELED, __func__); + } + } + + return NS_OK; +} + +void MediaFormatReader::Reset(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + LOG("Reset(%s) BEGIN", TrackTypeToStr(aTrack)); + + auto& decoder = GetDecoderData(aTrack); + + decoder.ResetState(); + decoder.Flush(); + + LOG("Reset(%s) END", TrackTypeToStr(aTrack)); +} + +void MediaFormatReader::DropDecodedSamples(TrackType aTrack) { + MOZ_ASSERT(OnTaskQueue()); + auto& decoder = GetDecoderData(aTrack); + size_t lengthDecodedQueue = decoder.mOutput.Length(); + if (lengthDecodedQueue && decoder.mTimeThreshold.isSome()) { + auto time = decoder.mOutput.LastElement()->mTime; + if (time >= decoder.mTimeThreshold.ref().Time()) { + // We would have reached our internal seek target. + decoder.mTimeThreshold.reset(); + } + } + decoder.mOutput.Clear(); + decoder.mSizeOfQueue -= lengthDecodedQueue; + if (aTrack == TrackInfo::kVideoTrack && mFrameStats) { + mFrameStats->Accumulate({0, 0, 0, lengthDecodedQueue, 0, 0}); + } +} + +void MediaFormatReader::SkipVideoDemuxToNextKeyFrame(TimeUnit aTimeThreshold) { + AUTO_PROFILER_LABEL("MediaFormatReader::SkipVideoDemuxToNextKeyFrame", + MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOG("Skipping up to %" PRId64, aTimeThreshold.ToMicroseconds()); + + // We've reached SkipVideoDemuxToNextKeyFrame when our decoding is late. + // As such we can drop all already decoded samples and discard all pending + // samples. + DropDecodedSamples(TrackInfo::kVideoTrack); + + mVideo.mTrackDemuxer->SkipToNextRandomAccessPoint(aTimeThreshold) + ->Then(OwnerThread(), __func__, this, + &MediaFormatReader::OnVideoSkipCompleted, + &MediaFormatReader::OnVideoSkipFailed) + ->Track(mSkipRequest); +} + +void MediaFormatReader::VideoSkipReset(uint32_t aSkipped) { + PROFILER_MARKER_UNTYPED("SkippedVideoDecode", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + // Some frames may have been output by the decoder since we initiated the + // videoskip process and we know they would be late. + DropDecodedSamples(TrackInfo::kVideoTrack); + // Report the pending frames as dropped. + if (mFrameStats) { + uint32_t droppedDecoderCount = SizeOfVideoQueueInFrames(); + mFrameStats->Accumulate({0, 0, 0, droppedDecoderCount, 0, 0}); + } + + // Cancel any pending demux request and pending demuxed samples. + mVideo.mDemuxRequest.DisconnectIfExists(); + Reset(TrackType::kVideoTrack); + + if (mFrameStats) { + mFrameStats->Accumulate({aSkipped, 0, 0, aSkipped, 0, 0}); + } + + mVideo.mNumSamplesSkippedTotal += aSkipped; +} + +void MediaFormatReader::OnVideoSkipCompleted(uint32_t aSkipped) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnVideoSkipCompleted", + MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOG("Skipping succeeded, skipped %u frames", aSkipped); + mSkipRequest.Complete(); + + DDLOG(DDLogCategory::Log, "video_skipped", DDNoValue()); + + VideoSkipReset(aSkipped); + + ScheduleUpdate(TrackInfo::kVideoTrack); +} + +void MediaFormatReader::OnVideoSkipFailed( + MediaTrackDemuxer::SkipFailureHolder aFailure) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnVideoSkipFailed", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOG("Skipping failed, skipped %u frames", aFailure.mSkipped); + mSkipRequest.Complete(); + + switch (aFailure.mFailure.Code()) { + case NS_ERROR_DOM_MEDIA_END_OF_STREAM: + case NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA: + DDLOG(DDLogCategory::Log, "video_skipping_interruption", + aFailure.mFailure); + // Some frames may have been output by the decoder since we initiated the + // videoskip process and we know they would be late. + DropDecodedSamples(TrackInfo::kVideoTrack); + // We can't complete the skip operation, will just service a video frame + // normally. + ScheduleUpdate(TrackInfo::kVideoTrack); + break; + case NS_ERROR_DOM_MEDIA_CANCELED: + DDLOG(DDLogCategory::Log, "video_skipping_interruption", + aFailure.mFailure); + if (mVideo.HasPromise()) { + mVideo.RejectPromise(aFailure.mFailure, __func__); + } + break; + default: + DDLOG(DDLogCategory::Log, "video_skipping_error", aFailure.mFailure); + NotifyError(TrackType::kVideoTrack, aFailure.mFailure); + break; + } +} + +RefPtr<MediaFormatReader::SeekPromise> MediaFormatReader::Seek( + const SeekTarget& aTarget) { + AUTO_PROFILER_LABEL("MediaFormatReader::Seek", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + LOG("aTarget=(%" PRId64 "), track=%s", aTarget.GetTime().ToMicroseconds(), + SeekTarget::TrackToStr(aTarget.GetTrack())); + + MOZ_DIAGNOSTIC_ASSERT(mSeekPromise.IsEmpty()); + MOZ_DIAGNOSTIC_ASSERT(mPendingSeekTime.isNothing()); + // Should reset data request, and no pending internal seek. + if (aTarget.IsAllTracks()) { + MOZ_DIAGNOSTIC_ASSERT(!mVideo.HasPromise()); + MOZ_DIAGNOSTIC_ASSERT(!mAudio.HasPromise()); + MOZ_DIAGNOSTIC_ASSERT(mVideo.mTimeThreshold.isNothing()); + MOZ_DIAGNOSTIC_ASSERT(mAudio.mTimeThreshold.isNothing()); + } else if (aTarget.IsVideoOnly()) { + MOZ_DIAGNOSTIC_ASSERT(!mVideo.HasPromise()); + MOZ_DIAGNOSTIC_ASSERT(mVideo.mTimeThreshold.isNothing()); + } else if (aTarget.IsAudioOnly()) { + MOZ_DIAGNOSTIC_ASSERT(!mAudio.HasPromise()); + MOZ_DIAGNOSTIC_ASSERT(mAudio.mTimeThreshold.isNothing()); + } + + if (!mInfo.mMediaSeekable && !mInfo.mMediaSeekableOnlyInBufferedRanges) { + LOG("Seek() END (Unseekable)"); + return SeekPromise::CreateAndReject(NS_ERROR_FAILURE, __func__); + } + + if (mShutdown) { + return SeekPromise::CreateAndReject(NS_ERROR_FAILURE, __func__); + } + + SetSeekTarget(aTarget); + + RefPtr<SeekPromise> p = mSeekPromise.Ensure(__func__); + + ScheduleSeek(); + + return p; +} + +void MediaFormatReader::SetSeekTarget(const SeekTarget& aTarget) { + MOZ_ASSERT(OnTaskQueue()); + + mOriginalSeekTarget = aTarget; + mFallbackSeekTime = mPendingSeekTime = Some(aTarget.GetTime()); +} + +void MediaFormatReader::ScheduleSeek() { + if (mSeekScheduled) { + return; + } + mSeekScheduled = true; + nsresult rv = OwnerThread()->Dispatch(NewRunnableMethod( + "MediaFormatReader::AttemptSeek", this, &MediaFormatReader::AttemptSeek)); + MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv)); + Unused << rv; +} + +void MediaFormatReader::AttemptSeek() { + AUTO_PROFILER_LABEL("MediaFormatReader::AttemptSeek", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + mSeekScheduled = false; + + if (mPendingSeekTime.isNothing()) { + LOGV("AttemptSeek, no pending seek time?"); + return; + } + + // Only reset the demuxers targeted by this SeekTarget, to avoid A/V sync + // issues. + const bool isSeekingAudio = HasAudio() && !mOriginalSeekTarget.IsVideoOnly(); + const bool isSeekingVideo = HasVideo() && !mOriginalSeekTarget.IsAudioOnly(); + LOG("AttemptSeek, seekingAudio=%d, seekingVideo=%d", isSeekingAudio, + isSeekingVideo); + if (isSeekingVideo) { + mVideo.ResetDemuxer(); + mVideo.ResetState(); + } + if (isSeekingAudio) { + mAudio.ResetDemuxer(); + mAudio.ResetState(); + } + + // If seeking both tracks, seek the video track, and then the audio track when + // the video track seek has completed. Otherwise, only seek a specific track. + if (isSeekingVideo) { + DoVideoSeek(); + } else if (isSeekingAudio) { + DoAudioSeek(); + } else { + MOZ_CRASH(); + } +} + +void MediaFormatReader::OnSeekFailed(TrackType aTrack, + const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnSeekFailed", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOGV("%s failure:%s", TrackTypeToStr(aTrack), aError.ErrorName().get()); + if (aTrack == TrackType::kVideoTrack) { + mVideo.mSeekRequest.Complete(); + } else { + mAudio.mSeekRequest.Complete(); + } + + if (aError == NS_ERROR_DOM_MEDIA_WAITING_FOR_DATA) { + if (HasVideo() && aTrack == TrackType::kAudioTrack && + mFallbackSeekTime.isSome() && + mPendingSeekTime.ref() != mFallbackSeekTime.ref()) { + // We have failed to seek audio where video seeked to earlier. + // Attempt to seek instead to the closest point that we know we have in + // order to limit A/V sync discrepency. + + // Ensure we have the most up to date buffered ranges. + UpdateReceivedNewData(TrackType::kAudioTrack); + Maybe<TimeUnit> nextSeekTime; + // Find closest buffered time found after video seeked time. + for (const auto& timeRange : mAudio.mTimeRanges) { + if (timeRange.mStart >= mPendingSeekTime.ref()) { + nextSeekTime.emplace(timeRange.mStart); + break; + } + } + if (nextSeekTime.isNothing() || + nextSeekTime.ref() > mFallbackSeekTime.ref()) { + nextSeekTime = Some(mFallbackSeekTime.ref()); + LOG("Unable to seek audio to video seek time. A/V sync may be broken"); + } else { + mFallbackSeekTime.reset(); + } + mPendingSeekTime = nextSeekTime; + DoAudioSeek(); + return; + } + NotifyWaitingForData(aTrack); + } + MOZ_ASSERT(!mVideo.mSeekRequest.Exists() && !mAudio.mSeekRequest.Exists()); + mPendingSeekTime.reset(); + + auto type = aTrack == TrackType::kAudioTrack ? MediaData::Type::AUDIO_DATA + : MediaData::Type::VIDEO_DATA; + mSeekPromise.RejectIfExists(SeekRejectValue(type, aError), __func__); +} + +void MediaFormatReader::DoVideoSeek() { + AUTO_PROFILER_LABEL("MediaFormatReader::DoVideoSeek", MEDIA_PLAYBACK); + MOZ_ASSERT(mPendingSeekTime.isSome()); + LOGV("Seeking video to %" PRId64, mPendingSeekTime.ref().ToMicroseconds()); + MOZ_DIAGNOSTIC_ASSERT(!IsAudioOnlySeeking()); + MOZ_DIAGNOSTIC_ASSERT(!mVideo.mSeekRequest.Exists()); + auto seekTime = mPendingSeekTime.ref(); + mVideo.mTrackDemuxer->Seek(seekTime) + ->Then(OwnerThread(), __func__, this, + &MediaFormatReader::OnVideoSeekCompleted, + &MediaFormatReader::OnVideoSeekFailed) + ->Track(mVideo.mSeekRequest); +} + +void MediaFormatReader::OnVideoSeekCompleted(TimeUnit aTime) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnVideoSeekCompleted", + MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + LOGV("Video seeked to %" PRId64, aTime.ToMicroseconds()); + mVideo.mSeekRequest.Complete(); + + mVideo.mFirstFrameTime = Some(aTime); + mPreviousDecodedKeyframeTime_us = sNoPreviousDecodedKeyframe; + + SetVideoDecodeThreshold(); + + if (HasAudio() && !mOriginalSeekTarget.IsVideoOnly()) { + MOZ_ASSERT(mPendingSeekTime.isSome()); + if (mOriginalSeekTarget.IsFast()) { + // We are performing a fast seek. We need to seek audio to where the + // video seeked to, to ensure proper A/V sync once playback resume. + mPendingSeekTime = Some(aTime); + } + DoAudioSeek(); + } else { + mPendingSeekTime.reset(); + mSeekPromise.ResolveIfExists(aTime, __func__); + } +} + +void MediaFormatReader::OnVideoSeekFailed(const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnVideoSeekFailed", MEDIA_PLAYBACK); + mPreviousDecodedKeyframeTime_us = sNoPreviousDecodedKeyframe; + OnSeekFailed(TrackType::kVideoTrack, aError); +} + +void MediaFormatReader::SetVideoDecodeThreshold() { + MOZ_ASSERT(OnTaskQueue()); + + if (!HasVideo() || !mVideo.mDecoder) { + return; + } + + if (!mVideo.mTimeThreshold && !IsSeeking()) { + return; + } + + TimeUnit threshold; + if (mVideo.mTimeThreshold) { + // For internalSeek. + threshold = mVideo.mTimeThreshold.ref().Time(); + } else if (IsSeeking()) { + // If IsSeeking() is true, then video seek must have completed already. + TimeUnit keyframe; + if (NS_FAILED(mVideo.mTrackDemuxer->GetNextRandomAccessPoint(&keyframe))) { + return; + } + + // If the key frame is invalid/infinite, it means the target position is + // closing to end of stream. We don't want to skip any frame at this point. + threshold = keyframe.IsValid() && !keyframe.IsInfinite() + ? mOriginalSeekTarget.GetTime() + : TimeUnit::Invalid(); + } else { + return; + } + + if (threshold.IsValid()) { + LOG("Set seek threshold to %" PRId64, threshold.ToMicroseconds()); + } else { + LOG("Resetting seek threshold"); + } + mVideo.mDecoder->SetSeekThreshold(threshold); +} + +void MediaFormatReader::DoAudioSeek() { + AUTO_PROFILER_LABEL("MediaFormatReader::DoAudioSeek", MEDIA_PLAYBACK); + MOZ_ASSERT(mPendingSeekTime.isSome()); + LOGV("Seeking audio to %" PRId64, mPendingSeekTime.ref().ToMicroseconds()); + MOZ_DIAGNOSTIC_ASSERT(!IsVideoOnlySeeking()); + MOZ_DIAGNOSTIC_ASSERT(!mAudio.mSeekRequest.Exists()); + auto seekTime = mPendingSeekTime.ref(); + mAudio.mTrackDemuxer->Seek(seekTime) + ->Then(OwnerThread(), __func__, this, + &MediaFormatReader::OnAudioSeekCompleted, + &MediaFormatReader::OnAudioSeekFailed) + ->Track(mAudio.mSeekRequest); +} + +void MediaFormatReader::OnAudioSeekCompleted(TimeUnit aTime) { + MOZ_ASSERT(OnTaskQueue()); + AUTO_PROFILER_LABEL("MediaFormatReader::OnAudioSeekCompleted", + MEDIA_PLAYBACK); + LOGV("Audio seeked to %" PRId64, aTime.ToMicroseconds()); + mAudio.mSeekRequest.Complete(); + mAudio.mFirstFrameTime = Some(aTime); + mPendingSeekTime.reset(); + mSeekPromise.ResolveIfExists(aTime, __func__); +} + +void MediaFormatReader::OnAudioSeekFailed(const MediaResult& aError) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnAudioSeekFailed", MEDIA_PLAYBACK); + OnSeekFailed(TrackType::kAudioTrack, aError); +} + +void MediaFormatReader::ReleaseResources() { + LOGV(""); + if (mShutdown) { + return; + } + ShutdownDecoder(TrackInfo::kAudioTrack); + ShutdownDecoder(TrackInfo::kVideoTrack); +} + +bool MediaFormatReader::VideoIsHardwareAccelerated() const { + return mVideo.mIsHardwareAccelerated; +} + +void MediaFormatReader::NotifyTrackDemuxers() { + MOZ_ASSERT(OnTaskQueue()); + + LOGV(""); + + if (!mInitDone) { + return; + } + + if (HasVideo()) { + mVideo.mReceivedNewData = true; + ScheduleUpdate(TrackType::kVideoTrack); + } + if (HasAudio()) { + mAudio.mReceivedNewData = true; + ScheduleUpdate(TrackType::kAudioTrack); + } +} + +void MediaFormatReader::NotifyDataArrived() { + AUTO_PROFILER_LABEL("MediaFormatReader::NotifyDataArrived", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + if (mShutdown || !mDemuxer || !mDemuxerInitDone) { + return; + } + + if (mNotifyDataArrivedPromise.Exists()) { + // Already one in progress. Set the dirty flag so we can process it later. + mPendingNotifyDataArrived = true; + return; + } + + RefPtr<MediaFormatReader> self = this; + mDemuxer->NotifyDataArrived() + ->Then( + OwnerThread(), __func__, + [self]() { + AUTO_PROFILER_LABEL("MediaFormatReader::NotifyDataArrived:Resolved", + MEDIA_PLAYBACK); + self->mNotifyDataArrivedPromise.Complete(); + self->UpdateBuffered(); + self->NotifyTrackDemuxers(); + if (self->mPendingNotifyDataArrived) { + self->mPendingNotifyDataArrived = false; + self->NotifyDataArrived(); + } + }, + [self]() { self->mNotifyDataArrivedPromise.Complete(); }) + ->Track(mNotifyDataArrivedPromise); +} + +void MediaFormatReader::UpdateMediaEngineId(uint64_t aMediaEngineId) { + LOG("Update external media engine Id %" PRIu64, aMediaEngineId); + mMediaEngineId = Some(aMediaEngineId); +} + +void MediaFormatReader::UpdateBuffered() { + AUTO_PROFILER_LABEL("MediaFormatReader::UpdateBuffered", MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + if (mShutdown) { + return; + } + + if (!mInitDone || !mHasStartTime) { + mBuffered = TimeIntervals(); + return; + } + + if (HasVideo()) { + mVideo.mTimeRanges = mVideo.mTrackDemuxer->GetBuffered(); + bool hasLastEnd; + auto lastEnd = mVideo.mTimeRanges.GetEnd(&hasLastEnd); + if (hasLastEnd) { + if (mVideo.mLastTimeRangesEnd && + mVideo.mLastTimeRangesEnd.ref() < lastEnd) { + // New data was added after our previous end, we can clear the EOS flag. + mVideo.mDemuxEOS = false; + ScheduleUpdate(TrackInfo::kVideoTrack); + } + mVideo.mLastTimeRangesEnd = Some(lastEnd); + } + } + if (HasAudio()) { + mAudio.mTimeRanges = mAudio.mTrackDemuxer->GetBuffered(); + bool hasLastEnd; + auto lastEnd = mAudio.mTimeRanges.GetEnd(&hasLastEnd); + if (hasLastEnd) { + if (mAudio.mLastTimeRangesEnd && + mAudio.mLastTimeRangesEnd.ref() < lastEnd) { + // New data was added after our previous end, we can clear the EOS flag. + mAudio.mDemuxEOS = false; + ScheduleUpdate(TrackInfo::kAudioTrack); + } + mAudio.mLastTimeRangesEnd = Some(lastEnd); + } + } + + media::TimeIntervals intervals; + if (HasAudio() && HasVideo()) { + intervals = media::Intersection(mVideo.mTimeRanges, mAudio.mTimeRanges); + } else if (HasAudio()) { + intervals = mAudio.mTimeRanges; + } else if (HasVideo()) { + intervals = mVideo.mTimeRanges; + } + + if (intervals.IsEmpty() || intervals.GetStart() == TimeUnit::Zero()) { + // IntervalSet already starts at 0 or is empty, nothing to shift. + mBuffered = intervals; + } else { + mBuffered = intervals.Shift(TimeUnit::Zero() - mInfo.mStartTime); + } +} + +layers::ImageContainer* MediaFormatReader::GetImageContainer() { + return mVideoFrameContainer ? mVideoFrameContainer->GetImageContainer() + : nullptr; +} + +RefPtr<GenericPromise> MediaFormatReader::RequestDebugInfo( + dom::MediaFormatReaderDebugInfo& aInfo) { + if (!OnTaskQueue()) { + // Run the request on the task queue if it's not already. + return InvokeAsync(mTaskQueue, __func__, + [this, self = RefPtr{this}, &aInfo] { + return RequestDebugInfo(aInfo); + }); + } + GetDebugInfo(aInfo); + return GenericPromise::CreateAndResolve(true, __func__); +} + +Maybe<nsCString> MediaFormatReader::GetAudioProcessPerCodec() { + if (mAudio.mDescription == "uninitialized"_ns) { + return Nothing(); + } + + MOZ_ASSERT(mAudio.mProcessName.Length() > 0, + "Should have had a process name"); + MOZ_ASSERT(mAudio.mCodecName.Length() > 0, "Should have had a codec name"); + + nsCString processName = mAudio.mProcessName; + nsCString audioProcessPerCodecName(processName + ","_ns + mAudio.mCodecName); + if (processName != "utility"_ns) { + if (!StaticPrefs::media_rdd_process_enabled()) { + audioProcessPerCodecName += ",rdd-disabled"_ns; + } + if (!StaticPrefs::media_utility_process_enabled()) { + audioProcessPerCodecName += ",utility-disabled"_ns; + } + } + return Some(audioProcessPerCodecName); +} + +void MediaFormatReader::GetDebugInfo(dom::MediaFormatReaderDebugInfo& aInfo) { + MOZ_ASSERT(OnTaskQueue(), + "Don't call this off the task queue, it's going to touch a lot of " + "data members"); + nsCString result; + nsAutoCString audioDecoderName("unavailable"); + nsAutoCString videoDecoderName = audioDecoderName; + nsAutoCString audioType("none"); + nsAutoCString videoType("none"); + + AudioInfo audioInfo; + if (HasAudio()) { + audioInfo = *mAudio.GetWorkingInfo()->GetAsAudioInfo(); + audioDecoderName = mAudio.mDecoder ? mAudio.mDecoder->GetDescriptionName() + : mAudio.mDescription; + audioType = audioInfo.mMimeType; + aInfo.mAudioState.mNeedInput = NeedInput(mAudio); + aInfo.mAudioState.mHasPromise = mAudio.HasPromise(); + aInfo.mAudioState.mWaitingPromise = !mAudio.mWaitingPromise.IsEmpty(); + aInfo.mAudioState.mHasDemuxRequest = mAudio.mDemuxRequest.Exists(); + aInfo.mAudioState.mDemuxQueueSize = + uint32_t(mAudio.mQueuedSamples.Length()); + aInfo.mAudioState.mHasDecoder = mAudio.mDecodeRequest.Exists(); + aInfo.mAudioState.mTimeTreshold = + mAudio.mTimeThreshold ? mAudio.mTimeThreshold.ref().Time().ToSeconds() + : -1.0; + aInfo.mAudioState.mTimeTresholdHasSeeked = + mAudio.mTimeThreshold ? mAudio.mTimeThreshold.ref().mHasSeeked : false; + aInfo.mAudioState.mNumSamplesInput = mAudio.mNumSamplesInput; + aInfo.mAudioState.mNumSamplesOutput = mAudio.mNumSamplesOutput; + aInfo.mAudioState.mQueueSize = size_t(mAudio.mSizeOfQueue); + aInfo.mAudioState.mPending = mAudio.mOutput.Length(); + aInfo.mAudioState.mWaitingForData = mAudio.mWaitingForData; + aInfo.mAudioState.mDemuxEOS = mAudio.mDemuxEOS; + aInfo.mAudioState.mDrainState = int32_t(mAudio.mDrainState); + aInfo.mAudioState.mWaitingForKey = mAudio.mWaitingForKey; + aInfo.mAudioState.mLastStreamSourceID = mAudio.mLastStreamSourceID; + } + + CopyUTF8toUTF16(audioDecoderName, aInfo.mAudioDecoderName); + CopyUTF8toUTF16(audioType, aInfo.mAudioType); + aInfo.mAudioChannels = audioInfo.mChannels; + aInfo.mAudioRate = audioInfo.mRate; + aInfo.mAudioFramesDecoded = mAudio.mNumSamplesOutputTotal; + + VideoInfo videoInfo; + if (HasVideo()) { + videoInfo = *mVideo.GetWorkingInfo()->GetAsVideoInfo(); + videoDecoderName = mVideo.mDecoder ? mVideo.mDecoder->GetDescriptionName() + : mVideo.mDescription; + videoType = videoInfo.mMimeType; + aInfo.mVideoState.mNeedInput = NeedInput(mVideo); + aInfo.mVideoState.mHasPromise = mVideo.HasPromise(); + aInfo.mVideoState.mWaitingPromise = !mVideo.mWaitingPromise.IsEmpty(); + aInfo.mVideoState.mHasDemuxRequest = mVideo.mDemuxRequest.Exists(); + aInfo.mVideoState.mDemuxQueueSize = + uint32_t(mVideo.mQueuedSamples.Length()); + aInfo.mVideoState.mHasDecoder = mVideo.mDecodeRequest.Exists(); + aInfo.mVideoState.mTimeTreshold = + mVideo.mTimeThreshold ? mVideo.mTimeThreshold.ref().Time().ToSeconds() + : -1.0; + aInfo.mVideoState.mTimeTresholdHasSeeked = + mVideo.mTimeThreshold ? mVideo.mTimeThreshold.ref().mHasSeeked : false; + aInfo.mVideoState.mNumSamplesInput = mVideo.mNumSamplesInput; + aInfo.mVideoState.mNumSamplesOutput = mVideo.mNumSamplesOutput; + aInfo.mVideoState.mQueueSize = size_t(mVideo.mSizeOfQueue); + aInfo.mVideoState.mPending = mVideo.mOutput.Length(); + aInfo.mVideoState.mWaitingForData = mVideo.mWaitingForData; + aInfo.mVideoState.mDemuxEOS = mVideo.mDemuxEOS; + aInfo.mVideoState.mDrainState = int32_t(mVideo.mDrainState); + aInfo.mVideoState.mWaitingForKey = mVideo.mWaitingForKey; + aInfo.mVideoState.mLastStreamSourceID = mVideo.mLastStreamSourceID; + } + + CopyUTF8toUTF16(videoDecoderName, aInfo.mVideoDecoderName); + CopyUTF8toUTF16(videoType, aInfo.mVideoType); + aInfo.mVideoWidth = + videoInfo.mDisplay.width < 0 ? 0 : videoInfo.mDisplay.width; + aInfo.mVideoHeight = + videoInfo.mDisplay.height < 0 ? 0 : videoInfo.mDisplay.height; + aInfo.mVideoRate = mVideo.mMeanRate.Mean(); + aInfo.mVideoHardwareAccelerated = VideoIsHardwareAccelerated(); + aInfo.mVideoNumSamplesOutputTotal = mVideo.mNumSamplesOutputTotal; + aInfo.mVideoNumSamplesSkippedTotal = mVideo.mNumSamplesSkippedTotal; + + // Looking at dropped frames + FrameStatisticsData stats = mFrameStats->GetFrameStatisticsData(); + aInfo.mFrameStats.mDroppedDecodedFrames = stats.mDroppedDecodedFrames; + aInfo.mFrameStats.mDroppedSinkFrames = stats.mDroppedSinkFrames; + aInfo.mFrameStats.mDroppedCompositorFrames = stats.mDroppedCompositorFrames; +} + +void MediaFormatReader::SetVideoNullDecode(bool aIsNullDecode) { + MOZ_ASSERT(OnTaskQueue()); + return SetNullDecode(TrackType::kVideoTrack, aIsNullDecode); +} + +void MediaFormatReader::UpdateCompositor( + already_AddRefed<layers::KnowsCompositor> aCompositor) { + MOZ_ASSERT(OnTaskQueue()); + mKnowsCompositor = aCompositor; +} + +void MediaFormatReader::SetNullDecode(TrackType aTrack, bool aIsNullDecode) { + MOZ_ASSERT(OnTaskQueue()); + + auto& decoder = GetDecoderData(aTrack); + if (decoder.mIsNullDecode == aIsNullDecode) { + return; + } + + LOG("%s, decoder.mIsNullDecode = %d => aIsNullDecode = %d", + TrackTypeToStr(aTrack), decoder.mIsNullDecode, aIsNullDecode); + + decoder.mIsNullDecode = aIsNullDecode; + ShutdownDecoder(aTrack); +} + +void MediaFormatReader::OnFirstDemuxCompleted( + TrackInfo::TrackType aType, + RefPtr<MediaTrackDemuxer::SamplesHolder> aSamples) { + AUTO_PROFILER_LABEL("MediaFormatReader::OnFirstDemuxCompleted", + MEDIA_PLAYBACK); + MOZ_ASSERT(OnTaskQueue()); + + if (mShutdown) { + return; + } + + auto& decoder = GetDecoderData(aType); + MOZ_ASSERT(decoder.mFirstDemuxedSampleTime.isNothing()); + decoder.mFirstDemuxedSampleTime.emplace(aSamples->GetSamples()[0]->mTime); + MaybeResolveMetadataPromise(); +} + +void MediaFormatReader::OnFirstDemuxFailed(TrackInfo::TrackType aType, + const MediaResult& aError) { + MOZ_ASSERT(OnTaskQueue()); + + if (mShutdown) { + return; + } + + auto& decoder = GetDecoderData(aType); + MOZ_ASSERT(decoder.mFirstDemuxedSampleTime.isNothing()); + decoder.mFirstDemuxedSampleTime.emplace(TimeUnit::FromInfinity()); + MaybeResolveMetadataPromise(); +} + +} // namespace mozilla + +#undef NS_DispatchToMainThread +#undef LOGV +#undef LOG |