mozilla-central/dom/media/MediaFormatReader.cpp (file symbol)

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/* -*- 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 "nsLiteralString.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 {
using MediaDataDecoderID = void*;
/**
* 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(const 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(
const 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);
Data& data = aTrack == TrackInfo::kAudioTrack ? mAudio : mVideo;
MOZ_DIAGNOSTIC_ASSERT_IF(mOwner->GetDecoderData(data.mTrack).IsEncrypted(),
mOwner->mCDMProxy);
RunStage(data);
}
void MediaFormatReader::DecoderFactory::RunStage(Data& aData) {
switch (aData.mStage) {
case Stage::None: {
MOZ_DIAGNOSTIC_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_DIAGNOSTIC_ASSERT(!aData.mToken);
MOZ_DIAGNOSTIC_ASSERT(aData.mTokenRequest.Exists());
break;
}
case Stage::CreateDecoder: {
MOZ_DIAGNOSTIC_ASSERT(aData.mToken);
MOZ_DIAGNOSTIC_ASSERT(!aData.mDecoder);
MOZ_DIAGNOSTIC_ASSERT(!aData.mInitRequest.Exists());
DoCreateDecoder(aData);
aData.mStage = Stage::WaitForInit;
break;
}
case Stage::WaitForInit: {
MOZ_DIAGNOSTIC_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_DIAGNOSTIC_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)),
mReadMetadataStartTime(Nothing()),
mReadMetaDataTime(TimeDuration::Zero()),
mTotalWaitingForVideoDataTime(TimeDuration::Zero()) {
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(/* aResolveValue = */ 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(/* aResolveValue = */ 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__);
}
if (!mReadMetadataStartTime) {
mReadMetadataStartTime = Some(TimeStamp::Now());
}
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).isEmpty()) {
// 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).isEmpty());
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;
if (mReadMetadataStartTime) {
mReadMetaDataTime = TimeStamp::Now() - *mReadMetadataStartTime;
mReadMetadataStartTime.reset();
}
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.mWaitingForDataStartTime) {
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.mWaitingForDataStartTime) {
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))](
const RefPtr<MediaTrackDemuxer::SamplesHolder>& aSamples) mutable {
perfRecorder.Record();
self->OnVideoDemuxCompleted(aSamples);
},
[self](const MediaResult& aError) { self->OnVideoDemuxFailed(aError); })
->Track(mVideo.mDemuxRequest);
}
void MediaFormatReader::OnVideoDemuxCompleted(
const 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))](
const RefPtr<MediaTrackDemuxer::SamplesHolder>& aSamples) mutable {
perfRecorder.Record();
self->OnAudioDemuxCompleted(aSamples);
},
[self](const MediaResult& aError) { self->OnAudioDemuxFailed(aError); })
->Track(mAudio.mDemuxRequest);
}
void MediaFormatReader::OnAudioDemuxCompleted(
const 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.mWaitingForDataStartTime = Some(TimeStamp::Now());
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 mWaitingForDataStartTime 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 mWaitingForDataStartTime 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;
}
if (aTrack == TrackType::kVideoTrack && decoder.mWaitingForDataStartTime) {
mTotalWaitingForVideoDataTime +=
TimeStamp::Now() - *decoder.mWaitingForDataStartTime;
}
decoder.mWaitingForDataStartTime.reset();
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.mWaitingForDataStartTime) {
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.mWaitingForDataStartTime, 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.mWaitingForDataStartTime, 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(const 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;
}
if (StaticPrefs::media_allow_audio_non_utility()) {
audioProcessPerCodecName += ",allow-non-utility"_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 =
AssertedCast<int>(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 =
AssertedCast<int64_t>(mAudio.mNumSamplesInput);
aInfo.mAudioState.mNumSamplesOutput =
AssertedCast<int64_t>(mAudio.mNumSamplesOutput);
aInfo.mAudioState.mQueueSize =
AssertedCast<int32_t>(size_t(mAudio.mSizeOfQueue));
aInfo.mAudioState.mPending = AssertedCast<int>(mAudio.mOutput.Length());
aInfo.mAudioState.mWaitingForData = !!mAudio.mWaitingForDataStartTime;
aInfo.mAudioState.mDemuxEOS = mAudio.mDemuxEOS;
aInfo.mAudioState.mDrainState = int32_t(mAudio.mDrainState);
aInfo.mAudioState.mWaitingForKey = mAudio.mWaitingForKey;
aInfo.mAudioState.mLastStreamSourceID =
AssertedCast<int64_t>(mAudio.mLastStreamSourceID);
}
CopyUTF8toUTF16(audioDecoderName, aInfo.mAudioDecoderName);
CopyUTF8toUTF16(audioType, aInfo.mAudioType);
aInfo.mAudioChannels = AssertedCast<int32_t>(audioInfo.mChannels);
aInfo.mAudioRate = audioInfo.mRate;
aInfo.mAudioFramesDecoded =
AssertedCast<int64_t>(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 =
AssertedCast<int32_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 =
AssertedCast<int64_t>(mVideo.mNumSamplesInput);
aInfo.mVideoState.mNumSamplesOutput =
AssertedCast<int64_t>(mVideo.mNumSamplesOutput);
aInfo.mVideoState.mQueueSize =
AssertedCast<int32_t>(size_t(mVideo.mSizeOfQueue));
aInfo.mVideoState.mPending = AssertedCast<int32_t>(mVideo.mOutput.Length());
aInfo.mVideoState.mWaitingForData = !!mVideo.mWaitingForDataStartTime;
aInfo.mVideoState.mDemuxEOS = mVideo.mDemuxEOS;
aInfo.mVideoState.mDrainState = int32_t(mVideo.mDrainState);
aInfo.mVideoState.mWaitingForKey = mVideo.mWaitingForKey;
aInfo.mVideoState.mLastStreamSourceID =
AssertedCast<int64_t>(mVideo.mLastStreamSourceID);
aInfo.mTotalReadMetadataTimeMs = mReadMetaDataTime.ToMilliseconds();
aInfo.mTotalWaitingForVideoDataTimeMs =
mTotalWaitingForVideoDataTime.ToMilliseconds();
}
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 =
AssertedCast<int64_t>(mVideo.mNumSamplesOutputTotal);
aInfo.mVideoNumSamplesSkippedTotal =
AssertedCast<int64_t>(mVideo.mNumSamplesSkippedTotal);
// Looking at dropped frames
FrameStatisticsData stats = mFrameStats->GetFrameStatisticsData();
aInfo.mFrameStats.mDroppedDecodedFrames =
AssertedCast<int64_t>(stats.mDroppedDecodedFrames);
aInfo.mFrameStats.mDroppedSinkFrames =
AssertedCast<int64_t>(stats.mDroppedSinkFrames);
aInfo.mFrameStats.mDroppedCompositorFrames =
AssertedCast<int64_t>(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,
const 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