gecko-dev/dom/media/MediaDecoder.cpp

1647 lines
44 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MediaDecoder.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/MathAlgorithms.h"
#include <limits>
#include "nsIObserver.h"
#include "nsTArray.h"
#include "VideoUtils.h"
#include "MediaDecoderStateMachine.h"
#include "ImageContainer.h"
#include "MediaResource.h"
#include "nsError.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPtr.h"
#include "nsIMemoryReporter.h"
#include "nsComponentManagerUtils.h"
#include <algorithm>
#include "MediaShutdownManager.h"
#include "AudioChannelService.h"
#include "mozilla/dom/AudioTrack.h"
#include "mozilla/dom/AudioTrackList.h"
#include "mozilla/dom/HTMLMediaElement.h"
#include "mozilla/dom/VideoTrack.h"
#include "mozilla/dom/VideoTrackList.h"
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::media;
// Default timeout msecs until try to enter dormant state by heuristic.
static const int DEFAULT_HEURISTIC_DORMANT_TIMEOUT_MSECS = 60000;
namespace mozilla {
// Number of estimated seconds worth of data we need to have buffered
// ahead of the current playback position before we allow the media decoder
// to report that it can play through the entire media without the decode
// catching up with the download. Having this margin make the
// MediaDecoder::CanPlayThrough() calculation more stable in the case of
// fluctuating bitrates.
static const int64_t CAN_PLAY_THROUGH_MARGIN = 1;
// The amount of instability we tollerate in calls to
// MediaDecoder::UpdateEstimatedMediaDuration(); changes of duration
// less than this are ignored, as they're assumed to be the result of
// instability in the duration estimation.
static const uint64_t ESTIMATED_DURATION_FUZZ_FACTOR_USECS = USECS_PER_S / 2;
// avoid redefined macro in unified build
#undef DECODER_LOG
PRLogModuleInfo* gMediaDecoderLog;
#define DECODER_LOG(x, ...) \
MOZ_LOG(gMediaDecoderLog, LogLevel::Debug, ("Decoder=%p " x, this, ##__VA_ARGS__))
static const char*
ToPlayStateStr(MediaDecoder::PlayState aState)
{
switch (aState) {
case MediaDecoder::PLAY_STATE_START: return "START";
case MediaDecoder::PLAY_STATE_LOADING: return "LOADING";
case MediaDecoder::PLAY_STATE_PAUSED: return "PAUSED";
case MediaDecoder::PLAY_STATE_PLAYING: return "PLAYING";
case MediaDecoder::PLAY_STATE_ENDED: return "ENDED";
case MediaDecoder::PLAY_STATE_SHUTDOWN: return "SHUTDOWN";
default: MOZ_ASSERT_UNREACHABLE("Invalid playState.");
}
return "UNKNOWN";
}
class MediaMemoryTracker : public nsIMemoryReporter
{
virtual ~MediaMemoryTracker();
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIMEMORYREPORTER
MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf);
MediaMemoryTracker();
void InitMemoryReporter();
static StaticRefPtr<MediaMemoryTracker> sUniqueInstance;
static MediaMemoryTracker* UniqueInstance() {
if (!sUniqueInstance) {
sUniqueInstance = new MediaMemoryTracker();
sUniqueInstance->InitMemoryReporter();
}
return sUniqueInstance;
}
typedef nsTArray<MediaDecoder*> DecodersArray;
static DecodersArray& Decoders() {
return UniqueInstance()->mDecoders;
}
DecodersArray mDecoders;
public:
static void AddMediaDecoder(MediaDecoder* aDecoder)
{
Decoders().AppendElement(aDecoder);
}
static void RemoveMediaDecoder(MediaDecoder* aDecoder)
{
DecodersArray& decoders = Decoders();
decoders.RemoveElement(aDecoder);
if (decoders.IsEmpty()) {
sUniqueInstance = nullptr;
}
}
};
StaticRefPtr<MediaMemoryTracker> MediaMemoryTracker::sUniqueInstance;
PRLogModuleInfo* gStateWatchingLog;
PRLogModuleInfo* gMozPromiseLog;
PRLogModuleInfo* gMediaTimerLog;
PRLogModuleInfo* gMediaSampleLog;
void
MediaDecoder::InitStatics()
{
MOZ_ASSERT(NS_IsMainThread());
// Log modules.
gMediaDecoderLog = PR_NewLogModule("MediaDecoder");
gMediaTimerLog = PR_NewLogModule("MediaTimer");
gMediaSampleLog = PR_NewLogModule("MediaSample");
}
NS_IMPL_ISUPPORTS(MediaMemoryTracker, nsIMemoryReporter)
NS_IMPL_ISUPPORTS0(MediaDecoder)
void MediaDecoder::NotifyOwnerActivityChanged()
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (!mOwner) {
NS_WARNING("MediaDecoder without a decoder owner, can't update dormant");
return;
}
UpdateDormantState(false /* aDormantTimeout */, false /* aActivity */);
// Start dormant timer if necessary
StartDormantTimer();
}
bool
MediaDecoder::IsHeuristicDormantSupported() const
{
return
#if defined(MOZ_EME)
// We disallow dormant for encrypted media until bug 1181864 is fixed.
mInfo &&
!mInfo->IsEncrypted() &&
#endif
mIsHeuristicDormantSupported;
}
void MediaDecoder::UpdateDormantState(bool aDormantTimeout, bool aActivity)
{
MOZ_ASSERT(NS_IsMainThread());
GetReentrantMonitor().AssertCurrentThreadIn();
if (!mDecoderStateMachine ||
mPlayState == PLAY_STATE_SHUTDOWN ||
!mOwner->GetVideoFrameContainer() ||
(mOwner->GetMediaElement() && mOwner->GetMediaElement()->IsBeingDestroyed()) ||
!mDormantSupported)
{
return;
}
DECODER_LOG("UpdateDormantState aTimeout=%d aActivity=%d mIsDormant=%d "
"ownerActive=%d ownerHidden=%d mIsHeuristicDormant=%d "
"mPlayState=%s encrypted=%s",
aDormantTimeout, aActivity, mIsDormant, mOwner->IsActive(),
mOwner->IsHidden(), mIsHeuristicDormant, PlayStateStr(),
(!mInfo ? "Unknown" : (mInfo->IsEncrypted() ? "1" : "0")));
bool prevDormant = mIsDormant;
mIsDormant = false;
if (!mOwner->IsActive()) {
mIsDormant = true;
}
#ifdef MOZ_WIDGET_GONK
if (mOwner->IsHidden()) {
mIsDormant = true;
}
#endif
// Try to enable dormant by idle heuristic, when the owner is hidden.
bool prevHeuristicDormant = mIsHeuristicDormant;
mIsHeuristicDormant = false;
if (IsHeuristicDormantSupported() && mOwner->IsHidden()) {
if (aDormantTimeout && !aActivity &&
(mPlayState == PLAY_STATE_PAUSED || IsEnded())) {
// Enable heuristic dormant
mIsHeuristicDormant = true;
} else if(prevHeuristicDormant && !aActivity) {
// Continue heuristic dormant
mIsHeuristicDormant = true;
}
if (mIsHeuristicDormant) {
mIsDormant = true;
}
}
if (prevDormant == mIsDormant) {
// No update to dormant state
return;
}
if (mIsDormant) {
DECODER_LOG("UpdateDormantState() entering DORMANT state");
// enter dormant state
RefPtr<nsRunnable> event =
NS_NewRunnableMethodWithArg<bool>(
mDecoderStateMachine,
&MediaDecoderStateMachine::SetDormant,
true);
mDecoderStateMachine->OwnerThread()->Dispatch(event.forget());
if (IsEnded()) {
mWasEndedWhenEnteredDormant = true;
}
mNextState = mPlayState;
ChangeState(PLAY_STATE_LOADING);
} else {
DECODER_LOG("UpdateDormantState() leaving DORMANT state");
// exit dormant state
// trigger to state machine.
RefPtr<nsRunnable> event =
NS_NewRunnableMethodWithArg<bool>(
mDecoderStateMachine,
&MediaDecoderStateMachine::SetDormant,
false);
mDecoderStateMachine->OwnerThread()->Dispatch(event.forget());
}
}
void MediaDecoder::DormantTimerExpired(nsITimer* aTimer, void* aClosure)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aClosure);
MediaDecoder* decoder = static_cast<MediaDecoder*>(aClosure);
ReentrantMonitorAutoEnter mon(decoder->GetReentrantMonitor());
decoder->UpdateDormantState(true /* aDormantTimeout */,
false /* aActivity */);
}
void MediaDecoder::StartDormantTimer()
{
MOZ_ASSERT(NS_IsMainThread());
if (!IsHeuristicDormantSupported()) {
return;
}
if (mIsHeuristicDormant ||
mShuttingDown ||
!mOwner ||
!mOwner->IsHidden() ||
(mPlayState != PLAY_STATE_PAUSED &&
!IsEnded()))
{
return;
}
if (!mDormantTimer) {
mDormantTimer = do_CreateInstance("@mozilla.org/timer;1");
}
mDormantTimer->InitWithFuncCallback(&MediaDecoder::DormantTimerExpired,
this,
mHeuristicDormantTimeout,
nsITimer::TYPE_ONE_SHOT);
}
void MediaDecoder::CancelDormantTimer()
{
MOZ_ASSERT(NS_IsMainThread());
if (mDormantTimer) {
mDormantTimer->Cancel();
}
}
void MediaDecoder::Pause()
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (mPlayState == PLAY_STATE_LOADING ||
IsEnded()) {
mNextState = PLAY_STATE_PAUSED;
return;
}
ChangeState(PLAY_STATE_PAUSED);
}
void MediaDecoder::SetVolume(double aVolume)
{
MOZ_ASSERT(NS_IsMainThread());
mVolume = aVolume;
}
void MediaDecoder::AddOutputStream(ProcessedMediaStream* aStream,
bool aFinishWhenEnded)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mDecoderStateMachine, "Must be called after Load().");
mDecoderStateMachine->AddOutputStream(aStream, aFinishWhenEnded);
}
void MediaDecoder::RemoveOutputStream(MediaStream* aStream)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mDecoderStateMachine, "Must be called after Load().");
mDecoderStateMachine->RemoveOutputStream(aStream);
}
double MediaDecoder::GetDuration()
{
MOZ_ASSERT(NS_IsMainThread());
return mDuration;
}
AbstractCanonical<media::NullableTimeUnit>*
MediaDecoder::CanonicalDurationOrNull()
{
MOZ_ASSERT(mDecoderStateMachine);
return mDecoderStateMachine->CanonicalDuration();
}
void MediaDecoder::SetInfinite(bool aInfinite)
{
MOZ_ASSERT(NS_IsMainThread());
mInfiniteStream = aInfinite;
DurationChanged();
}
bool MediaDecoder::IsInfinite()
{
MOZ_ASSERT(NS_IsMainThread());
return mInfiniteStream;
}
MediaDecoder::MediaDecoder() :
mWatchManager(this, AbstractThread::MainThread()),
mDormantSupported(false),
mDecoderPosition(0),
mPlaybackPosition(0),
mLogicalPosition(0.0),
mDuration(std::numeric_limits<double>::quiet_NaN()),
mMediaSeekable(true),
mReentrantMonitor("media.decoder"),
mIgnoreProgressData(false),
mInfiniteStream(false),
mOwner(nullptr),
mPlaybackStatistics(new MediaChannelStatistics()),
mPinnedForSeek(false),
mShuttingDown(false),
mPausedForPlaybackRateNull(false),
mMinimizePreroll(false),
mMediaTracksConstructed(false),
mFiredMetadataLoaded(false),
mIsDormant(false),
mWasEndedWhenEnteredDormant(false),
mIsHeuristicDormantSupported(
Preferences::GetBool("media.decoder.heuristic.dormant.enabled", false)),
mHeuristicDormantTimeout(
Preferences::GetInt("media.decoder.heuristic.dormant.timeout",
DEFAULT_HEURISTIC_DORMANT_TIMEOUT_MSECS)),
mIsHeuristicDormant(false),
mStateMachineIsShutdown(AbstractThread::MainThread(), true,
"MediaDecoder::mStateMachineIsShutdown (Mirror)"),
mBuffered(AbstractThread::MainThread(), TimeIntervals(),
"MediaDecoder::mBuffered (Mirror)"),
mNextFrameStatus(AbstractThread::MainThread(),
MediaDecoderOwner::NEXT_FRAME_UNINITIALIZED,
"MediaDecoder::mNextFrameStatus (Mirror)"),
mCurrentPosition(AbstractThread::MainThread(), 0,
"MediaDecoder::mCurrentPosition (Mirror)"),
mStateMachineDuration(AbstractThread::MainThread(), NullableTimeUnit(),
"MediaDecoder::mStateMachineDuration (Mirror)"),
mVolume(AbstractThread::MainThread(), 0.0,
"MediaDecoder::mVolume (Canonical)"),
mPlaybackRate(AbstractThread::MainThread(), 1.0,
"MediaDecoder::mPlaybackRate (Canonical)"),
mPreservesPitch(AbstractThread::MainThread(), true,
"MediaDecoder::mPreservesPitch (Canonical)"),
mEstimatedDuration(AbstractThread::MainThread(), NullableTimeUnit(),
"MediaDecoder::mEstimatedDuration (Canonical)"),
mExplicitDuration(AbstractThread::MainThread(), Maybe<double>(),
"MediaDecoder::mExplicitDuration (Canonical)"),
mPlayState(AbstractThread::MainThread(), PLAY_STATE_LOADING,
"MediaDecoder::mPlayState (Canonical)"),
mNextState(AbstractThread::MainThread(), PLAY_STATE_PAUSED,
"MediaDecoder::mNextState (Canonical)"),
mLogicallySeeking(AbstractThread::MainThread(), false,
"MediaDecoder::mLogicallySeeking (Canonical)"),
mSameOriginMedia(AbstractThread::MainThread(), false,
"MediaDecoder::mSameOriginMedia (Canonical)")
{
MOZ_COUNT_CTOR(MediaDecoder);
MOZ_ASSERT(NS_IsMainThread());
MediaMemoryTracker::AddMediaDecoder(this);
mAudioChannel = AudioChannelService::GetDefaultAudioChannel();
//
// Initialize watchers.
//
// mDuration
mWatchManager.Watch(mStateMachineDuration, &MediaDecoder::DurationChanged);
// mStateMachineIsShutdown
mWatchManager.Watch(mStateMachineIsShutdown, &MediaDecoder::ShutdownBitChanged);
// readyState
mWatchManager.Watch(mPlayState, &MediaDecoder::UpdateReadyState);
mWatchManager.Watch(mNextFrameStatus, &MediaDecoder::UpdateReadyState);
// mLogicalPosition
mWatchManager.Watch(mCurrentPosition, &MediaDecoder::UpdateLogicalPosition);
mWatchManager.Watch(mPlayState, &MediaDecoder::UpdateLogicalPosition);
mWatchManager.Watch(mLogicallySeeking, &MediaDecoder::UpdateLogicalPosition);
// mIgnoreProgressData
mWatchManager.Watch(mLogicallySeeking, &MediaDecoder::SeekingChanged);
}
bool MediaDecoder::Init(MediaDecoderOwner* aOwner)
{
MOZ_ASSERT(NS_IsMainThread());
mOwner = aOwner;
mVideoFrameContainer = aOwner->GetVideoFrameContainer();
MediaShutdownManager::Instance().Register(this);
return true;
}
void MediaDecoder::Shutdown()
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
mShuttingDown = true;
// This changes the decoder state to SHUTDOWN and does other things
// necessary to unblock the state machine thread if it's blocked, so
// the asynchronous shutdown in nsDestroyStateMachine won't deadlock.
if (mDecoderStateMachine) {
mDecoderStateMachine->DispatchShutdown();
}
// Force any outstanding seek and byterange requests to complete
// to prevent shutdown from deadlocking.
if (mResource) {
mResource->Close();
}
CancelDormantTimer();
ChangeState(PLAY_STATE_SHUTDOWN);
mOwner = nullptr;
MediaShutdownManager::Instance().Unregister(this);
}
MediaDecoder::~MediaDecoder()
{
MOZ_ASSERT(NS_IsMainThread());
MediaMemoryTracker::RemoveMediaDecoder(this);
UnpinForSeek();
MOZ_COUNT_DTOR(MediaDecoder);
}
nsresult MediaDecoder::OpenResource(nsIStreamListener** aStreamListener)
{
MOZ_ASSERT(NS_IsMainThread());
if (aStreamListener) {
*aStreamListener = nullptr;
}
{
// Hold the lock while we do this to set proper lock ordering
// expectations for dynamic deadlock detectors: decoder lock(s)
// should be grabbed before the cache lock
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
nsresult rv = mResource->Open(aStreamListener);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult MediaDecoder::Load(nsIStreamListener** aStreamListener,
MediaDecoder* aCloneDonor)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mResource, "Can't load without a MediaResource");
nsresult rv = OpenResource(aStreamListener);
NS_ENSURE_SUCCESS(rv, rv);
SetStateMachine(CreateStateMachine());
NS_ENSURE_TRUE(GetStateMachine(), NS_ERROR_FAILURE);
return InitializeStateMachine(aCloneDonor);
}
nsresult MediaDecoder::InitializeStateMachine(MediaDecoder* aCloneDonor)
{
MOZ_ASSERT(NS_IsMainThread());
NS_ASSERTION(mDecoderStateMachine, "Cannot initialize null state machine!");
MediaDecoder* cloneDonor = static_cast<MediaDecoder*>(aCloneDonor);
nsresult rv = mDecoderStateMachine->Init(
cloneDonor ? cloneDonor->mDecoderStateMachine.get() : nullptr);
NS_ENSURE_SUCCESS(rv, rv);
// If some parameters got set before the state machine got created,
// set them now
SetStateMachineParameters();
return NS_OK;
}
void MediaDecoder::SetStateMachineParameters()
{
MOZ_ASSERT(NS_IsMainThread());
if (mMinimizePreroll) {
mDecoderStateMachine->DispatchMinimizePrerollUntilPlaybackStarts();
}
}
void MediaDecoder::SetMinimizePrerollUntilPlaybackStarts()
{
MOZ_ASSERT(NS_IsMainThread());
DECODER_LOG("SetMinimizePrerollUntilPlaybackStarts()");
mMinimizePreroll = true;
// This needs to be called before we init the state machine, otherwise it will
// have no effect.
MOZ_DIAGNOSTIC_ASSERT(!mDecoderStateMachine);
}
nsresult MediaDecoder::Play()
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
UpdateDormantState(false /* aDormantTimeout */, true /* aActivity */);
NS_ASSERTION(mDecoderStateMachine != nullptr, "Should have state machine.");
if (mPausedForPlaybackRateNull) {
return NS_OK;
}
if (IsEnded()) {
return Seek(0, SeekTarget::PrevSyncPoint);
} else if (mPlayState == PLAY_STATE_LOADING) {
mNextState = PLAY_STATE_PLAYING;
return NS_OK;
}
ChangeState(PLAY_STATE_PLAYING);
return NS_OK;
}
nsresult MediaDecoder::Seek(double aTime, SeekTarget::Type aSeekType)
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
NS_ENSURE_TRUE(!mShuttingDown, NS_ERROR_FAILURE);
UpdateDormantState(false /* aDormantTimeout */, true /* aActivity */);
MOZ_ASSERT(aTime >= 0.0, "Cannot seek to a negative value.");
int64_t timeUsecs = 0;
nsresult rv = SecondsToUsecs(aTime, timeUsecs);
NS_ENSURE_SUCCESS(rv, rv);
mLogicalPosition = aTime;
mWasEndedWhenEnteredDormant = false;
mLogicallySeeking = true;
SeekTarget target = SeekTarget(timeUsecs, aSeekType);
CallSeek(target);
if (mPlayState == PLAY_STATE_ENDED) {
bool paused = false;
if (mOwner) {
paused = mOwner->GetPaused();
}
PinForSeek();
ChangeState(paused ? PLAY_STATE_PAUSED : PLAY_STATE_PLAYING);
}
return NS_OK;
}
void MediaDecoder::CallSeek(const SeekTarget& aTarget)
{
MOZ_ASSERT(NS_IsMainThread());
mSeekRequest.DisconnectIfExists();
mSeekRequest.Begin(InvokeAsync(mDecoderStateMachine->OwnerThread(),
mDecoderStateMachine.get(), __func__,
&MediaDecoderStateMachine::Seek, aTarget)
->Then(AbstractThread::MainThread(), __func__, this,
&MediaDecoder::OnSeekResolved, &MediaDecoder::OnSeekRejected));
}
double MediaDecoder::GetCurrentTime()
{
MOZ_ASSERT(NS_IsMainThread());
return mLogicalPosition;
}
already_AddRefed<nsIPrincipal> MediaDecoder::GetCurrentPrincipal()
{
MOZ_ASSERT(NS_IsMainThread());
return mResource ? mResource->GetCurrentPrincipal() : nullptr;
}
void MediaDecoder::QueueMetadata(const TimeUnit& aPublishTime,
nsAutoPtr<MediaInfo> aInfo,
nsAutoPtr<MetadataTags> aTags)
{
MOZ_ASSERT(OnDecodeTaskQueue());
GetReentrantMonitor().AssertCurrentThreadIn();
mDecoderStateMachine->QueueMetadata(aPublishTime, aInfo, aTags);
}
void MediaDecoder::MetadataLoaded(nsAutoPtr<MediaInfo> aInfo,
nsAutoPtr<MetadataTags> aTags,
MediaDecoderEventVisibility aEventVisibility)
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown) {
return;
}
DECODER_LOG("MetadataLoaded, channels=%u rate=%u hasAudio=%d hasVideo=%d",
aInfo->mAudio.mChannels, aInfo->mAudio.mRate,
aInfo->HasAudio(), aInfo->HasVideo());
mInfo = aInfo.forget();
ConstructMediaTracks();
if (mOwner) {
// Make sure the element and the frame (if any) are told about
// our new size.
Invalidate();
if (aEventVisibility != MediaDecoderEventVisibility::Suppressed) {
mFiredMetadataLoaded = true;
mOwner->MetadataLoaded(mInfo, nsAutoPtr<const MetadataTags>(aTags.forget()));
}
}
}
const char*
MediaDecoder::PlayStateStr()
{
MOZ_ASSERT(NS_IsMainThread());
switch (mPlayState) {
case PLAY_STATE_START: return "PLAY_STATE_START";
case PLAY_STATE_LOADING: return "PLAY_STATE_LOADING";
case PLAY_STATE_PAUSED: return "PLAY_STATE_PAUSED";
case PLAY_STATE_PLAYING: return "PLAY_STATE_PLAYING";
case PLAY_STATE_ENDED: return "PLAY_STATE_ENDED";
case PLAY_STATE_SHUTDOWN: return "PLAY_STATE_SHUTDOWN";
default: return "INVALID_PLAY_STATE";
}
}
void MediaDecoder::FirstFrameLoaded(nsAutoPtr<MediaInfo> aInfo,
MediaDecoderEventVisibility aEventVisibility)
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown) {
return;
}
DECODER_LOG("FirstFrameLoaded, channels=%u rate=%u hasAudio=%d hasVideo=%d mPlayState=%s mIsDormant=%d",
aInfo->mAudio.mChannels, aInfo->mAudio.mRate,
aInfo->HasAudio(), aInfo->HasVideo(), PlayStateStr(), mIsDormant);
mInfo = aInfo.forget();
if (mOwner) {
Invalidate();
if (aEventVisibility != MediaDecoderEventVisibility::Suppressed) {
mOwner->FirstFrameLoaded();
}
}
// This can run cache callbacks.
mResource->EnsureCacheUpToDate();
// The element can run javascript via events
// before reaching here, so only change the
// state if we're still set to the original
// loading state.
if (mPlayState == PLAY_STATE_LOADING && !mIsDormant) {
ChangeState(mNextState);
}
// Run NotifySuspendedStatusChanged now to give us a chance to notice
// that autoplay should run.
NotifySuspendedStatusChanged();
}
void MediaDecoder::ResetConnectionState()
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
if (mOwner) {
// Notify the media element that connection gets lost.
mOwner->ResetConnectionState();
}
// Since we have notified the media element the connection
// lost event, the decoder will be reloaded when user tries
// to play the Rtsp streaming next time.
Shutdown();
}
void MediaDecoder::NetworkError()
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
if (mOwner)
mOwner->NetworkError();
Shutdown();
}
void MediaDecoder::DecodeError()
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
if (mOwner)
mOwner->DecodeError();
Shutdown();
}
void MediaDecoder::UpdateSameOriginStatus(bool aSameOrigin)
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mSameOriginMedia = aSameOrigin;
}
bool MediaDecoder::IsSeeking() const
{
MOZ_ASSERT(NS_IsMainThread());
return mLogicallySeeking;
}
bool MediaDecoder::IsEndedOrShutdown() const
{
MOZ_ASSERT(NS_IsMainThread());
return IsEnded() || mPlayState == PLAY_STATE_SHUTDOWN;
}
bool MediaDecoder::IsEnded() const
{
MOZ_ASSERT(NS_IsMainThread());
return mPlayState == PLAY_STATE_ENDED ||
(mWasEndedWhenEnteredDormant && (mPlayState != PLAY_STATE_SHUTDOWN));
}
void MediaDecoder::PlaybackEnded()
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown ||
mLogicallySeeking ||
mPlayState == PLAY_STATE_LOADING) {
return;
}
ChangeState(PLAY_STATE_ENDED);
InvalidateWithFlags(VideoFrameContainer::INVALIDATE_FORCE);
if (mOwner) {
mOwner->PlaybackEnded();
}
// This must be called after |mOwner->PlaybackEnded()| call above, in order
// to fire the required durationchange.
if (IsInfinite()) {
SetInfinite(false);
}
}
MediaDecoder::Statistics
MediaDecoder::GetStatistics()
{
Statistics result;
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (mResource) {
result.mDownloadRate =
mResource->GetDownloadRate(&result.mDownloadRateReliable);
result.mDownloadPosition =
mResource->GetCachedDataEnd(mDecoderPosition);
result.mTotalBytes = mResource->GetLength();
result.mPlaybackRate = ComputePlaybackRate(&result.mPlaybackRateReliable);
result.mDecoderPosition = mDecoderPosition;
result.mPlaybackPosition = mPlaybackPosition;
}
else {
result.mDownloadRate = 0;
result.mDownloadRateReliable = true;
result.mPlaybackRate = 0;
result.mPlaybackRateReliable = true;
result.mDecoderPosition = 0;
result.mPlaybackPosition = 0;
result.mDownloadPosition = 0;
result.mTotalBytes = 0;
}
return result;
}
double MediaDecoder::ComputePlaybackRate(bool* aReliable)
{
GetReentrantMonitor().AssertCurrentThreadIn();
MOZ_ASSERT(NS_IsMainThread() || OnStateMachineTaskQueue() || OnDecodeTaskQueue());
int64_t length = mResource ? mResource->GetLength() : -1;
if (!IsNaN(mDuration) && !mozilla::IsInfinite<double>(mDuration) && length >= 0) {
*aReliable = true;
return length / mDuration;
}
return mPlaybackStatistics->GetRateAtLastStop(aReliable);
}
void MediaDecoder::UpdatePlaybackRate()
{
MOZ_ASSERT(NS_IsMainThread());
GetReentrantMonitor().AssertCurrentThreadIn();
if (!mResource)
return;
bool reliable;
uint32_t rate = uint32_t(ComputePlaybackRate(&reliable));
if (reliable) {
// Avoid passing a zero rate
rate = std::max(rate, 1u);
}
else {
// Set a minimum rate of 10,000 bytes per second ... sometimes we just
// don't have good data
rate = std::max(rate, 10000u);
}
mResource->SetPlaybackRate(rate);
}
void MediaDecoder::NotifySuspendedStatusChanged()
{
MOZ_ASSERT(NS_IsMainThread());
if (mResource && mOwner) {
bool suspended = mResource->IsSuspendedByCache();
mOwner->NotifySuspendedByCache(suspended);
}
}
void MediaDecoder::NotifyBytesDownloaded()
{
MOZ_ASSERT(NS_IsMainThread());
{
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
UpdatePlaybackRate();
}
if (mOwner) {
mOwner->DownloadProgressed();
}
}
void MediaDecoder::NotifyDownloadEnded(nsresult aStatus)
{
MOZ_ASSERT(NS_IsMainThread());
DECODER_LOG("NotifyDownloadEnded, status=%x", aStatus);
if (aStatus == NS_BINDING_ABORTED) {
// Download has been cancelled by user.
if (mOwner) {
mOwner->LoadAborted();
}
return;
}
{
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
UpdatePlaybackRate();
}
if (NS_SUCCEEDED(aStatus)) {
// A final progress event will be fired by the MediaResource calling
// DownloadSuspended on the element.
// Also NotifySuspendedStatusChanged() will be called to update readyState
// if download ended with success.
} else if (aStatus != NS_BASE_STREAM_CLOSED) {
NetworkError();
}
}
void MediaDecoder::NotifyPrincipalChanged()
{
MOZ_ASSERT(NS_IsMainThread());
if (mOwner) {
mOwner->NotifyDecoderPrincipalChanged();
}
}
void MediaDecoder::NotifyBytesConsumed(int64_t aBytes, int64_t aOffset)
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown || mIgnoreProgressData) {
return;
}
MOZ_ASSERT(mDecoderStateMachine);
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (aOffset >= mDecoderPosition) {
mPlaybackStatistics->AddBytes(aBytes);
}
mDecoderPosition = aOffset + aBytes;
}
void MediaDecoder::OnSeekResolved(SeekResolveValue aVal)
{
MOZ_ASSERT(NS_IsMainThread());
mSeekRequest.Complete();
if (mShuttingDown)
return;
bool fireEnded = false;
{
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
// An additional seek was requested while the current seek was
// in operation.
UnpinForSeek();
fireEnded = aVal.mAtEnd;
if (aVal.mAtEnd) {
ChangeState(PLAY_STATE_ENDED);
}
mLogicallySeeking = false;
}
UpdateLogicalPosition(aVal.mEventVisibility);
if (mOwner) {
if (aVal.mEventVisibility != MediaDecoderEventVisibility::Suppressed) {
mOwner->SeekCompleted();
if (fireEnded) {
mOwner->PlaybackEnded();
}
}
}
}
void MediaDecoder::SeekingStarted(MediaDecoderEventVisibility aEventVisibility)
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
if (mOwner) {
if (aEventVisibility != MediaDecoderEventVisibility::Suppressed) {
mOwner->SeekStarted();
}
}
}
void MediaDecoder::ChangeState(PlayState aState)
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (mNextState == aState) {
mNextState = PLAY_STATE_PAUSED;
}
if (mPlayState == PLAY_STATE_SHUTDOWN) {
return;
}
DECODER_LOG("ChangeState %s => %s",
ToPlayStateStr(mPlayState), ToPlayStateStr(aState));
mPlayState = aState;
if (mPlayState == PLAY_STATE_PLAYING) {
ConstructMediaTracks();
} else if (IsEnded()) {
RemoveMediaTracks();
}
CancelDormantTimer();
// Start dormant timer if necessary
StartDormantTimer();
}
void MediaDecoder::UpdateLogicalPosition(MediaDecoderEventVisibility aEventVisibility)
{
MOZ_ASSERT(NS_IsMainThread());
if (mShuttingDown)
return;
// Per spec, offical position remains stable during pause and seek.
if (mPlayState == PLAY_STATE_PAUSED || IsSeeking()) {
return;
}
double currentPosition = static_cast<double>(CurrentPosition()) / static_cast<double>(USECS_PER_S);
bool logicalPositionChanged = mLogicalPosition != currentPosition;
mLogicalPosition = currentPosition;
// Invalidate the frame so any video data is displayed.
// Do this before the timeupdate event so that if that
// event runs JavaScript that queries the media size, the
// frame has reflowed and the size updated beforehand.
Invalidate();
if (mOwner && logicalPositionChanged &&
aEventVisibility != MediaDecoderEventVisibility::Suppressed) {
FireTimeUpdate();
}
}
void MediaDecoder::DurationChanged()
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
double oldDuration = mDuration;
if (IsInfinite()) {
mDuration = std::numeric_limits<double>::infinity();
} else if (mExplicitDuration.Ref().isSome()) {
mDuration = mExplicitDuration.Ref().ref();
} else if (mStateMachineDuration.Ref().isSome()) {
mDuration = mStateMachineDuration.Ref().ref().ToSeconds();
}
if (mDuration == oldDuration || IsNaN(mDuration)) {
return;
}
DECODER_LOG("Duration changed to %f", mDuration);
// Duration has changed so we should recompute playback rate
UpdatePlaybackRate();
// See https://www.w3.org/Bugs/Public/show_bug.cgi?id=28822 for a discussion
// of whether we should fire durationchange on explicit infinity.
if (mOwner && mFiredMetadataLoaded &&
(!mozilla::IsInfinite<double>(mDuration) || mExplicitDuration.Ref().isSome())) {
mOwner->DispatchAsyncEvent(NS_LITERAL_STRING("durationchange"));
}
if (CurrentPosition() > TimeUnit::FromSeconds(mDuration).ToMicroseconds()) {
Seek(mDuration, SeekTarget::Accurate);
}
}
void MediaDecoder::UpdateEstimatedMediaDuration(int64_t aDuration)
{
MOZ_ASSERT(NS_IsMainThread());
if (mPlayState <= PLAY_STATE_LOADING) {
return;
}
// The duration is only changed if its significantly different than the
// the current estimate, as the incoming duration is an estimate and so
// often is unstable as more data is read and the estimate is updated.
// Can result in a durationchangeevent. aDuration is in microseconds.
if (mEstimatedDuration.Ref().isSome() &&
mozilla::Abs(mEstimatedDuration.Ref().ref().ToMicroseconds() - aDuration) < ESTIMATED_DURATION_FUZZ_FACTOR_USECS) {
return;
}
mEstimatedDuration = Some(TimeUnit::FromMicroseconds(aDuration));
}
void MediaDecoder::SetMediaSeekable(bool aMediaSeekable) {
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mMediaSeekable = aMediaSeekable;
}
bool
MediaDecoder::IsTransportSeekable()
{
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
return GetResource()->IsTransportSeekable();
}
bool MediaDecoder::IsMediaSeekable()
{
NS_ENSURE_TRUE(GetStateMachine(), false);
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
return mMediaSeekable;
}
media::TimeIntervals MediaDecoder::GetSeekable()
{
MOZ_ASSERT(NS_IsMainThread());
// We can seek in buffered range if the media is seekable. Also, we can seek
// in unbuffered ranges if the transport level is seekable (local file or the
// server supports range requests, etc.)
if (!IsMediaSeekable()) {
return media::TimeIntervals();
} else if (!IsTransportSeekable()) {
return GetBuffered();
} else {
return media::TimeIntervals(
media::TimeInterval(media::TimeUnit::FromMicroseconds(0),
IsInfinite() ?
media::TimeUnit::FromInfinity() :
media::TimeUnit::FromSeconds(GetDuration())));
}
}
void MediaDecoder::SetFragmentEndTime(double aTime)
{
MOZ_ASSERT(NS_IsMainThread());
if (mDecoderStateMachine) {
mDecoderStateMachine->DispatchSetFragmentEndTime(static_cast<int64_t>(aTime * USECS_PER_S));
}
}
void MediaDecoder::Suspend()
{
MOZ_ASSERT(NS_IsMainThread());
if (mResource) {
mResource->Suspend(true);
}
}
void MediaDecoder::Resume(bool aForceBuffering)
{
MOZ_ASSERT(NS_IsMainThread());
if (mResource) {
mResource->Resume();
}
if (aForceBuffering) {
if (mDecoderStateMachine) {
mDecoderStateMachine->DispatchStartBuffering();
}
}
}
void MediaDecoder::SetLoadInBackground(bool aLoadInBackground)
{
MOZ_ASSERT(NS_IsMainThread());
if (mResource) {
mResource->SetLoadInBackground(aLoadInBackground);
}
}
void MediaDecoder::UpdatePlaybackOffset(int64_t aOffset)
{
GetReentrantMonitor().AssertCurrentThreadIn();
mPlaybackPosition = aOffset;
}
bool MediaDecoder::OnStateMachineTaskQueue() const
{
return mDecoderStateMachine->OnTaskQueue();
}
void MediaDecoder::SetPlaybackRate(double aPlaybackRate)
{
MOZ_ASSERT(NS_IsMainThread());
mPlaybackRate = aPlaybackRate;
if (mPlaybackRate == 0.0) {
mPausedForPlaybackRateNull = true;
Pause();
} else if (mPausedForPlaybackRateNull) {
// Play() uses mPausedForPlaybackRateNull value, so must reset it first
mPausedForPlaybackRateNull = false;
// If the playbackRate is no longer null, restart the playback, iff the
// media was playing.
if (mOwner && !mOwner->GetPaused()) {
Play();
}
}
}
void MediaDecoder::SetPreservesPitch(bool aPreservesPitch)
{
MOZ_ASSERT(NS_IsMainThread());
mPreservesPitch = aPreservesPitch;
}
bool MediaDecoder::OnDecodeTaskQueue() const {
NS_WARN_IF_FALSE(mDecoderStateMachine, "mDecoderStateMachine is null");
return mDecoderStateMachine ? mDecoderStateMachine->OnDecodeTaskQueue() : false;
}
void
MediaDecoder::SetStateMachine(MediaDecoderStateMachine* aStateMachine)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT_IF(aStateMachine, !mDecoderStateMachine);
mDecoderStateMachine = aStateMachine;
if (mDecoderStateMachine) {
mStateMachineDuration.Connect(mDecoderStateMachine->CanonicalDuration());
mBuffered.Connect(mDecoderStateMachine->CanonicalBuffered());
mStateMachineIsShutdown.Connect(mDecoderStateMachine->CanonicalIsShutdown());
mNextFrameStatus.Connect(mDecoderStateMachine->CanonicalNextFrameStatus());
mCurrentPosition.Connect(mDecoderStateMachine->CanonicalCurrentPosition());
} else {
mStateMachineDuration.DisconnectIfConnected();
mBuffered.DisconnectIfConnected();
mStateMachineIsShutdown.DisconnectIfConnected();
mNextFrameStatus.DisconnectIfConnected();
mCurrentPosition.DisconnectIfConnected();
}
}
ReentrantMonitor& MediaDecoder::GetReentrantMonitor() {
return mReentrantMonitor;
}
ImageContainer* MediaDecoder::GetImageContainer()
{
return mVideoFrameContainer ? mVideoFrameContainer->GetImageContainer() : nullptr;
}
void MediaDecoder::InvalidateWithFlags(uint32_t aFlags)
{
if (mVideoFrameContainer) {
mVideoFrameContainer->InvalidateWithFlags(aFlags);
}
}
void MediaDecoder::Invalidate()
{
if (mVideoFrameContainer) {
mVideoFrameContainer->Invalidate();
}
}
// Constructs the time ranges representing what segments of the media
// are buffered and playable.
media::TimeIntervals MediaDecoder::GetBuffered() {
MOZ_ASSERT(NS_IsMainThread());
return mBuffered.Ref();
}
size_t MediaDecoder::SizeOfVideoQueue() {
MOZ_ASSERT(NS_IsMainThread());
if (mDecoderStateMachine) {
return mDecoderStateMachine->SizeOfVideoQueue();
}
return 0;
}
size_t MediaDecoder::SizeOfAudioQueue() {
MOZ_ASSERT(NS_IsMainThread());
if (mDecoderStateMachine) {
return mDecoderStateMachine->SizeOfAudioQueue();
}
return 0;
}
void MediaDecoder::NotifyDataArrived(uint32_t aLength, int64_t aOffset, bool aThrottleUpdates) {
MOZ_ASSERT(NS_IsMainThread());
if (mDecoderStateMachine) {
mDecoderStateMachine->DispatchNotifyDataArrived(aLength, aOffset, aThrottleUpdates);
}
// ReadyState computation depends on MediaDecoder::CanPlayThrough, which
// depends on the download rate.
UpdateReadyState();
}
// Provide access to the state machine object
MediaDecoderStateMachine* MediaDecoder::GetStateMachine() const {
return mDecoderStateMachine;
}
void
MediaDecoder::NotifyWaitingForResourcesStatusChanged()
{
if (mDecoderStateMachine) {
RefPtr<nsRunnable> task =
NS_NewRunnableMethod(mDecoderStateMachine,
&MediaDecoderStateMachine::NotifyWaitingForResourcesStatusChanged);
mDecoderStateMachine->OwnerThread()->Dispatch(task.forget());
}
}
bool MediaDecoder::IsShutdown() const {
MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_TRUE(GetStateMachine(), true);
return mStateMachineIsShutdown;
}
// Drop reference to state machine. Only called during shutdown dance.
void MediaDecoder::BreakCycles() {
SetStateMachine(nullptr);
}
MediaDecoderOwner* MediaDecoder::GetMediaOwner() const
{
return mOwner;
}
void MediaDecoder::FireTimeUpdate()
{
MOZ_ASSERT(NS_IsMainThread());
if (!mOwner)
return;
mOwner->FireTimeUpdate(true);
}
void MediaDecoder::PinForSeek()
{
MOZ_ASSERT(NS_IsMainThread());
MediaResource* resource = GetResource();
if (!resource || mPinnedForSeek) {
return;
}
mPinnedForSeek = true;
resource->Pin();
}
void MediaDecoder::UnpinForSeek()
{
MOZ_ASSERT(NS_IsMainThread());
MediaResource* resource = GetResource();
if (!resource || !mPinnedForSeek) {
return;
}
mPinnedForSeek = false;
resource->Unpin();
}
bool MediaDecoder::CanPlayThrough()
{
Statistics stats = GetStatistics();
NS_ENSURE_TRUE(mDecoderStateMachine, false);
if (mDecoderStateMachine->IsRealTime() ||
(stats.mTotalBytes < 0 && stats.mDownloadRateReliable) ||
(stats.mTotalBytes >= 0 && stats.mTotalBytes == stats.mDownloadPosition)) {
return true;
}
if (!stats.mDownloadRateReliable || !stats.mPlaybackRateReliable) {
return false;
}
int64_t bytesToDownload = stats.mTotalBytes - stats.mDownloadPosition;
int64_t bytesToPlayback = stats.mTotalBytes - stats.mPlaybackPosition;
double timeToDownload = bytesToDownload / stats.mDownloadRate;
double timeToPlay = bytesToPlayback / stats.mPlaybackRate;
if (timeToDownload > timeToPlay) {
// Estimated time to download is greater than the estimated time to play.
// We probably can't play through without having to stop to buffer.
return false;
}
// Estimated time to download is less than the estimated time to play.
// We can probably play through without having to buffer, but ensure that
// we've got a reasonable amount of data buffered after the current
// playback position, so that if the bitrate of the media fluctuates, or if
// our download rate or decode rate estimation is otherwise inaccurate,
// we don't suddenly discover that we need to buffer. This is particularly
// required near the start of the media, when not much data is downloaded.
int64_t readAheadMargin =
static_cast<int64_t>(stats.mPlaybackRate * CAN_PLAY_THROUGH_MARGIN);
return stats.mDownloadPosition > stats.mPlaybackPosition + readAheadMargin;
}
#ifdef MOZ_EME
nsresult
MediaDecoder::SetCDMProxy(CDMProxy* aProxy)
{
MOZ_ASSERT(NS_IsMainThread());
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
mProxy = aProxy;
// Awaken any readers waiting for the proxy.
NotifyWaitingForResourcesStatusChanged();
return NS_OK;
}
CDMProxy*
MediaDecoder::GetCDMProxy()
{
GetReentrantMonitor().AssertCurrentThreadIn();
return mProxy;
}
#endif
#ifdef MOZ_RAW
bool
MediaDecoder::IsRawEnabled()
{
return Preferences::GetBool("media.raw.enabled");
}
#endif
bool
MediaDecoder::IsOpusEnabled()
{
return Preferences::GetBool("media.opus.enabled");
}
bool
MediaDecoder::IsOggEnabled()
{
return Preferences::GetBool("media.ogg.enabled");
}
#ifdef MOZ_WAVE
bool
MediaDecoder::IsWaveEnabled()
{
return Preferences::GetBool("media.wave.enabled");
}
#endif
#ifdef MOZ_WEBM
bool
MediaDecoder::IsWebMEnabled()
{
return Preferences::GetBool("media.webm.enabled");
}
#endif
#ifdef NECKO_PROTOCOL_rtsp
bool
MediaDecoder::IsRtspEnabled()
{
//Currently the Rtsp decoded by omx.
return (Preferences::GetBool("media.rtsp.enabled", false) && IsOmxEnabled());
}
#endif
#ifdef MOZ_GSTREAMER
bool
MediaDecoder::IsGStreamerEnabled()
{
return Preferences::GetBool("media.gstreamer.enabled");
}
#endif
#ifdef MOZ_OMX_DECODER
bool
MediaDecoder::IsOmxEnabled()
{
return Preferences::GetBool("media.omx.enabled", false);
}
bool
MediaDecoder::IsOmxAsyncEnabled()
{
#if ANDROID_VERSION >= 16
return Preferences::GetBool("media.omx.async.enabled", false);
#else
return false;
#endif
}
#endif
#ifdef MOZ_ANDROID_OMX
bool
MediaDecoder::IsAndroidMediaEnabled()
{
return Preferences::GetBool("media.plugins.enabled");
}
#endif
#ifdef MOZ_APPLEMEDIA
bool
MediaDecoder::IsAppleMP3Enabled()
{
return Preferences::GetBool("media.apple.mp3.enabled");
}
#endif
NS_IMETHODIMP
MediaMemoryTracker::CollectReports(nsIHandleReportCallback* aHandleReport,
nsISupports* aData, bool aAnonymize)
{
int64_t video = 0, audio = 0;
size_t resources = 0;
DecodersArray& decoders = Decoders();
for (size_t i = 0; i < decoders.Length(); ++i) {
MediaDecoder* decoder = decoders[i];
video += decoder->SizeOfVideoQueue();
audio += decoder->SizeOfAudioQueue();
if (decoder->GetResource()) {
resources += decoder->GetResource()->SizeOfIncludingThis(MallocSizeOf);
}
}
#define REPORT(_path, _amount, _desc) \
do { \
nsresult rv; \
rv = aHandleReport->Callback(EmptyCString(), NS_LITERAL_CSTRING(_path), \
KIND_HEAP, UNITS_BYTES, _amount, \
NS_LITERAL_CSTRING(_desc), aData); \
NS_ENSURE_SUCCESS(rv, rv); \
} while (0)
REPORT("explicit/media/decoded/video", video,
"Memory used by decoded video frames.");
REPORT("explicit/media/decoded/audio", audio,
"Memory used by decoded audio chunks.");
REPORT("explicit/media/resources", resources,
"Memory used by media resources including streaming buffers, caches, "
"etc.");
#undef REPORT
return NS_OK;
}
MediaDecoderOwner*
MediaDecoder::GetOwner()
{
MOZ_ASSERT(NS_IsMainThread());
return mOwner;
}
void
MediaDecoder::ConstructMediaTracks()
{
MOZ_ASSERT(NS_IsMainThread());
if (mMediaTracksConstructed) {
return;
}
if (!mOwner || !mInfo) {
return;
}
HTMLMediaElement* element = mOwner->GetMediaElement();
if (!element) {
return;
}
mMediaTracksConstructed = true;
AudioTrackList* audioList = element->AudioTracks();
if (audioList && mInfo->HasAudio()) {
const TrackInfo& info = mInfo->mAudio;
nsRefPtr<AudioTrack> track = MediaTrackList::CreateAudioTrack(
info.mId, info.mKind, info.mLabel, info.mLanguage, info.mEnabled);
audioList->AddTrack(track);
}
VideoTrackList* videoList = element->VideoTracks();
if (videoList && mInfo->HasVideo()) {
const TrackInfo& info = mInfo->mVideo;
nsRefPtr<VideoTrack> track = MediaTrackList::CreateVideoTrack(
info.mId, info.mKind, info.mLabel, info.mLanguage);
videoList->AddTrack(track);
track->SetEnabledInternal(info.mEnabled, MediaTrack::FIRE_NO_EVENTS);
}
}
void
MediaDecoder::RemoveMediaTracks()
{
MOZ_ASSERT(NS_IsMainThread());
if (!mOwner) {
return;
}
HTMLMediaElement* element = mOwner->GetMediaElement();
if (!element) {
return;
}
AudioTrackList* audioList = element->AudioTracks();
if (audioList) {
audioList->RemoveTracks();
}
VideoTrackList* videoList = element->VideoTracks();
if (videoList) {
videoList->RemoveTracks();
}
mMediaTracksConstructed = false;
}
MediaMemoryTracker::MediaMemoryTracker()
{
}
void
MediaMemoryTracker::InitMemoryReporter()
{
RegisterWeakMemoryReporter(this);
}
MediaMemoryTracker::~MediaMemoryTracker()
{
UnregisterWeakMemoryReporter(this);
}
} // namespace mozilla
// avoid redefined macro in unified build
#undef DECODER_LOG