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authorwolfbeast <mcwerewolf@gmail.com>2017-12-13 12:07:12 +0100
committerwolfbeast <mcwerewolf@gmail.com>2018-02-24 10:20:45 +0100
commit46ad1199deeaf6ba2db31fb3398d3eaa9abdbb2e (patch)
treebdb1316d0388f03c6b7e4171f56f5bac46c41d87
parent55d03738f9f79e30bab6294b023176d1a65ab5c3 (diff)
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Don't build EME-specific subroutines without EME.
- Checks for restricted or encrypted content - Dispatching 'encrypted' events - Dispatching 'key needed' events - HTML Media Element media keys system - EME telemetry - HTML Media Element EME API This is the main bulk for #26, isolating EME-specific code.
-rw-r--r--dom/canvas/CanvasRenderingContext2D.cpp2
-rw-r--r--dom/html/HTMLMediaElement.cpp56
-rw-r--r--dom/html/HTMLMediaElement.h10
-rw-r--r--dom/media/MediaDecoderOwner.h2
-rw-r--r--dom/media/MediaFormatReader.cpp12
-rw-r--r--dom/media/mediasource/TrackBuffersManager.cpp4
-rw-r--r--dom/webidl/HTMLMediaElement.webidl2
-rw-r--r--dom/webidl/moz.build2
-rw-r--r--layout/base/nsLayoutUtils.cpp2
9 files changed, 90 insertions, 2 deletions
diff --git a/dom/canvas/CanvasRenderingContext2D.cpp b/dom/canvas/CanvasRenderingContext2D.cpp
index b0a430fe4..35ea2cd1a 100644
--- a/dom/canvas/CanvasRenderingContext2D.cpp
+++ b/dom/canvas/CanvasRenderingContext2D.cpp
@@ -4977,10 +4977,12 @@ CanvasRenderingContext2D::DrawImage(const CanvasImageSource& aImage,
return;
}
+#ifdef MOZ_EME
if (video->ContainsRestrictedContent()) {
aError.Throw(NS_ERROR_NOT_AVAILABLE);
return;
}
+#endif
uint16_t readyState;
if (NS_SUCCEEDED(video->GetReadyState(&readyState)) &&
diff --git a/dom/html/HTMLMediaElement.cpp b/dom/html/HTMLMediaElement.cpp
index e81cd20bc..09a354c3d 100644
--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -11,7 +11,9 @@
#include "mozilla/ArrayUtils.h"
#include "mozilla/MathAlgorithms.h"
#include "mozilla/AsyncEventDispatcher.h"
+#ifdef MOZ_EME
#include "mozilla/dom/MediaEncryptedEvent.h"
+#endif
#include "base/basictypes.h"
#include "nsIDOMHTMLMediaElement.h"
@@ -820,7 +822,9 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTM
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTextTrackManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioTrackList)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVideoTrackList)
+#ifdef MOZ_EME
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaKeys)
+#endif
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSelectedVideoStreamTrack)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
@@ -845,7 +849,9 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTMLE
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTextTrackManager)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioTrackList)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mVideoTrackList)
+#ifdef MOZ_EME
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaKeys)
+#endif
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSelectedVideoStreamTrack)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
@@ -1020,12 +1026,14 @@ void HTMLMediaElement::ShutdownDecoder()
void HTMLMediaElement::AbortExistingLoads()
{
+#ifdef MOZ_EME
// If there is no existing decoder then we don't have anything to
// report. This prevents reporting the initial load from an
// empty video element as a failed EME load.
if (mDecoder) {
ReportEMETelemetry();
}
+#endif
// Abort any already-running instance of the resource selection algorithm.
mLoadWaitStatus = NOT_WAITING;
@@ -1084,7 +1092,13 @@ void HTMLMediaElement::AbortExistingLoads()
mDownloadSuspendedByCache = false;
mMediaInfo = MediaInfo();
mIsEncrypted = false;
+<<<<<<< HEAD
mPendingEncryptedInitData.mInitDatas.Clear();
+=======
+#ifdef MOZ_EME
+ mPendingEncryptedInitData.Reset();
+#endif
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
mWaitingForKey = NOT_WAITING_FOR_KEY;
mSourcePointer = nullptr;
@@ -2681,9 +2695,11 @@ HTMLMediaElement::CaptureStreamInternal(bool aFinishWhenEnded,
if (!window) {
return nullptr;
}
+#ifdef MOZ_EME
if (ContainsRestrictedContent()) {
return nullptr;
}
+#endif
if (!mOutputStreams.IsEmpty() &&
aGraph != mOutputStreams[0].mStream->GetInputStream()->Graph()) {
@@ -3638,6 +3654,7 @@ void HTMLMediaElement::HiddenVideoStop()
mVideoDecodeSuspendTimer = nullptr;
}
+#ifdef MOZ_EME
void
HTMLMediaElement::ReportEMETelemetry()
{
@@ -3649,6 +3666,7 @@ HTMLMediaElement::ReportEMETelemetry()
this, mLoadedDataFired ? "true" : "false"));
}
}
+#endif
void
HTMLMediaElement::ReportTelemetry()
@@ -3997,6 +4015,7 @@ nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder,
ms.mFinishWhenEnded);
}
+#ifdef MOZ_EME
if (mMediaKeys) {
if (mMediaKeys->GetCDMProxy()) {
mDecoder->SetCDMProxy(mMediaKeys->GetCDMProxy());
@@ -4006,6 +4025,7 @@ nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder,
return NS_ERROR_FAILURE;
}
}
+#endif
MediaEventSource<void>* waitingForKeyProducer = mDecoder->WaitingForKeyEvent();
// Not every decoder will produce waitingForKey events, only add ones that can
@@ -4468,7 +4488,11 @@ void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
SetMediaInfo(*aInfo);
- mIsEncrypted = aInfo->IsEncrypted() || mPendingEncryptedInitData.IsEncrypted();
+ mIsEncrypted = aInfo->IsEncrypted()
+#ifdef MOZ_EME
+ || mPendingEncryptedInitData.IsEncrypted()
+#endif
+ ;
mTags = aTags.forget();
mLoadedDataFired = false;
ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_METADATA);
@@ -4494,11 +4518,17 @@ void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
return;
}
+#ifdef MOZ_EME
// Dispatch a distinct 'encrypted' event for each initData we have.
for (const auto& initData : mPendingEncryptedInitData.mInitDatas) {
DispatchEncrypted(initData.mInitData, initData.mType);
}
+<<<<<<< HEAD
mPendingEncryptedInitData.mInitDatas.Clear();
+=======
+ mPendingEncryptedInitData.Reset();
+#endif
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
}
mWatchManager.ManualNotify(&HTMLMediaElement::UpdateReadyStateInternal);
@@ -5431,9 +5461,16 @@ void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement, bool aSuspendE
UpdateAudioChannelPlayingState();
if (aPauseElement) {
ReportTelemetry();
+#ifdef MOZ_EME
ReportEMETelemetry();
+#endif
+<<<<<<< HEAD
// For EME content, force destruction of the CDM client (and CDM
+=======
+#ifdef MOZ_EME
+ // For EME content, we may force destruction of the CDM client (and CDM
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
// instance if this is the last client for that CDM instance) and
// the CDM's decoder. This ensures the CDM gets reliable and prompt
// shutdown notifications, as it may have book-keeping it needs
@@ -5445,6 +5482,7 @@ void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement, bool aSuspendE
ShutdownDecoder();
}
}
+#endif
if (mDecoder) {
mDecoder->Pause();
mDecoder->Suspend();
@@ -5495,6 +5533,20 @@ void HTMLMediaElement::NotifyOwnerDocumentActivityChanged()
bool pauseElement = ShouldElementBePaused();
SuspendOrResumeElement(pauseElement, !IsActive());
+<<<<<<< HEAD
+=======
+#ifdef MOZ_EME
+ // If the owning document has become inactive we should shutdown the CDM.
+ if (!OwnerDoc()->IsCurrentActiveDocument() && mMediaKeys) {
+ mMediaKeys->Shutdown();
+ mMediaKeys = nullptr;
+ if (mDecoder) {
+ ShutdownDecoder();
+ }
+ }
+#endif
+
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
AddRemoveSelfReference();
}
@@ -6270,6 +6322,7 @@ HTMLMediaElement::OnVisibilityChange(Visibility aNewVisibility)
}
+#ifdef MOZ_EME
MediaKeys*
HTMLMediaElement::GetMediaKeys() const
{
@@ -6479,6 +6532,7 @@ HTMLMediaElement::GetTopLevelPrincipal()
principal = doc->NodePrincipal();
return principal.forget();
}
+#endif //MOZ_EME
void
HTMLMediaElement::CannotDecryptWaitingForKey()
diff --git a/dom/html/HTMLMediaElement.h b/dom/html/HTMLMediaElement.h
index d40e9df46..b65049206 100644
--- a/dom/html/HTMLMediaElement.h
+++ b/dom/html/HTMLMediaElement.h
@@ -20,7 +20,9 @@
#include "mozilla/dom/TextTrackManager.h"
#include "mozilla/WeakPtr.h"
#include "MediaDecoder.h"
+#ifdef MOZ_EME
#include "mozilla/dom/MediaKeys.h"
+#endif
#include "mozilla/StateWatching.h"
#include "nsGkAtoms.h"
#include "PrincipalChangeObserver.h"
@@ -630,6 +632,7 @@ public:
// XPCOM MozPreservesPitch() is OK
+#ifdef MOZ_EME
MediaKeys* GetMediaKeys() const;
already_AddRefed<Promise> SetMediaKeys(MediaKeys* mediaKeys,
@@ -651,6 +654,7 @@ public:
already_AddRefed<nsIPrincipal> GetTopLevelPrincipal();
bool ContainsRestrictedContent();
+#endif // MOZ_EME
void CannotDecryptWaitingForKey();
@@ -1198,7 +1202,9 @@ protected:
*/
void HiddenVideoStop();
+#ifdef MOZ_EME
void ReportEMETelemetry();
+#endif
void ReportTelemetry();
@@ -1471,8 +1477,10 @@ protected:
// Timer used to simulate video-suspend.
nsCOMPtr<nsITimer> mVideoDecodeSuspendTimer;
+#ifdef MOZ_EME
// Encrypted Media Extension media keys.
RefPtr<MediaKeys> mMediaKeys;
+#endif
// Stores the time at the start of the current 'played' range.
double mCurrentPlayRangeStart;
@@ -1627,8 +1635,10 @@ protected:
// Listens for waitingForKey events from the owned decoder.
MediaEventListener mWaitingForKeyListener;
+#ifdef MOZ_EME
// Init Data that needs to be sent in 'encrypted' events in MetadataLoaded().
EncryptionInfo mPendingEncryptedInitData;
+#endif
// True if the media's channel's download has been suspended.
Watchable<bool> mDownloadSuspendedByCache;
diff --git a/dom/media/MediaDecoderOwner.h b/dom/media/MediaDecoderOwner.h
index f884686fb..f993b4324 100644
--- a/dom/media/MediaDecoderOwner.h
+++ b/dom/media/MediaDecoderOwner.h
@@ -143,11 +143,13 @@ public:
// reference to the decoder to prevent further calls into the decoder.
virtual void NotifyXPCOMShutdown() = 0;
+#ifdef MOZ_EME
// Dispatches a "encrypted" event to the HTMLMediaElement, with the
// provided init data. Actual dispatch may be delayed until HAVE_METADATA.
// Main thread only.
virtual void DispatchEncrypted(const nsTArray<uint8_t>& aInitData,
const nsAString& aInitDataType) = 0;
+#endif
};
} // namespace mozilla
diff --git a/dom/media/MediaFormatReader.cpp b/dom/media/MediaFormatReader.cpp
index 2093803ad..06e8b963b 100644
--- a/dom/media/MediaFormatReader.cpp
+++ b/dom/media/MediaFormatReader.cpp
@@ -346,8 +346,12 @@ MediaFormatReader::DecoderFactory::DoCreateDecoder(TrackType aTrack)
if (!mOwner->mPlatform) {
mOwner->mPlatform = new PDMFactory();
if (mOwner->IsEncrypted()) {
+#ifdef MOZ_EME
MOZ_ASSERT(mOwner->mCDMProxy);
mOwner->mPlatform->SetCDMProxy(mOwner->mCDMProxy);
+#else
+ return MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR, "EME not supported");
+#endif
}
}
@@ -577,6 +581,7 @@ MediaFormatReader::InitInternal()
return NS_OK;
}
+#ifdef MOZ_EME
class DispatchKeyNeededEvent : public Runnable {
public:
DispatchKeyNeededEvent(AbstractMediaDecoder* aDecoder,
@@ -602,6 +607,7 @@ private:
nsTArray<uint8_t> mInitData;
nsString mInitDataType;
};
+#endif
void
MediaFormatReader::SetCDMProxy(CDMProxy* aProxy)
@@ -618,7 +624,11 @@ MediaFormatReader::SetCDMProxy(CDMProxy* aProxy)
bool
MediaFormatReader::IsWaitingOnCDMResource() {
MOZ_ASSERT(OnTaskQueue());
+#ifdef MOZ_EME
return IsEncrypted() && !mCDMProxy;
+#else
+ return false;
+#endif
}
RefPtr<MediaDecoderReader::MetadataPromise>
@@ -725,11 +735,13 @@ MediaFormatReader::OnDemuxerInitDone(nsresult)
UniquePtr<EncryptionInfo> crypto = mDemuxer->GetCrypto();
if (mDecoder && crypto && crypto->IsEncrypted()) {
+#ifdef MOZ_EME
// Try and dispatch 'encrypted'. Won't go if ready state still HAVE_NOTHING.
for (uint32_t i = 0; i < crypto->mInitDatas.Length(); i++) {
NS_DispatchToMainThread(
new DispatchKeyNeededEvent(mDecoder, crypto->mInitDatas[i].mInitData, crypto->mInitDatas[i].mType));
}
+#endif
mInfo.mCrypto = *crypto;
}
diff --git a/dom/media/mediasource/TrackBuffersManager.cpp b/dom/media/mediasource/TrackBuffersManager.cpp
index 4265aed81..ac6d82411 100644
--- a/dom/media/mediasource/TrackBuffersManager.cpp
+++ b/dom/media/mediasource/TrackBuffersManager.cpp
@@ -58,6 +58,7 @@ AppendStateToStr(SourceBufferAttributes::AppendState aState)
static Atomic<uint32_t> sStreamSourceID(0u);
+#ifdef MOZ_EME
class DispatchKeyNeededEvent : public Runnable {
public:
DispatchKeyNeededEvent(AbstractMediaDecoder* aDecoder,
@@ -83,6 +84,7 @@ private:
nsTArray<uint8_t> mInitData;
nsString mInitDataType;
};
+#endif
TrackBuffersManager::TrackBuffersManager(MediaSourceDecoder* aParentDecoder,
const nsACString& aType)
@@ -1097,12 +1099,14 @@ TrackBuffersManager::OnDemuxerInitDone(nsresult)
UniquePtr<EncryptionInfo> crypto = mInputDemuxer->GetCrypto();
if (crypto && crypto->IsEncrypted()) {
+#ifdef MOZ_EME
// Try and dispatch 'encrypted'. Won't go if ready state still HAVE_NOTHING.
for (uint32_t i = 0; i < crypto->mInitDatas.Length(); i++) {
NS_DispatchToMainThread(
new DispatchKeyNeededEvent(mParentDecoder, crypto->mInitDatas[i].mInitData,
crypto->mInitDatas[i].mType));
}
+#endif
info.mCrypto = *crypto;
// We clear our crypto init data array, so the MediaFormatReader will
// not emit an encrypted event for the same init data again.
diff --git a/dom/webidl/HTMLMediaElement.webidl b/dom/webidl/HTMLMediaElement.webidl
index 456579ec1..313686dac 100644
--- a/dom/webidl/HTMLMediaElement.webidl
+++ b/dom/webidl/HTMLMediaElement.webidl
@@ -153,6 +153,7 @@ partial interface HTMLMediaElement {
attribute EventHandler onmozinterruptend;
};
+#ifdef MOZ_EME
// Encrypted Media Extensions
partial interface HTMLMediaElement {
[Pref="media.eme.apiVisible"]
@@ -168,6 +169,7 @@ partial interface HTMLMediaElement {
[Pref="media.eme.apiVisible"]
attribute EventHandler onwaitingforkey;
};
+#endif
// This is just for testing
partial interface HTMLMediaElement {
diff --git a/dom/webidl/moz.build b/dom/webidl/moz.build
index f24c366e8..5dc637799 100644
--- a/dom/webidl/moz.build
+++ b/dom/webidl/moz.build
@@ -9,6 +9,7 @@ GENERATED_WEBIDL_FILES = [
]
PREPROCESSED_WEBIDL_FILES = [
+ 'HTMLMediaElement.webidl',
'Navigator.webidl',
'Node.webidl',
'Promise.webidl',
@@ -210,7 +211,6 @@ WEBIDL_FILES = [
'HTMLLIElement.webidl',
'HTMLLinkElement.webidl',
'HTMLMapElement.webidl',
- 'HTMLMediaElement.webidl',
'HTMLMenuElement.webidl',
'HTMLMenuItemElement.webidl',
'HTMLMetaElement.webidl',
diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
index ed34f39ce..789c91f50 100644
--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -7242,9 +7242,11 @@ nsLayoutUtils::SurfaceFromElement(HTMLVideoElement* aElement,
(aSurfaceFlags & SFE_PREFER_NO_PREMULTIPLY_ALPHA) == 0,
"We can't support non-premultiplied alpha for video!");
+#ifdef MOZ_EME
if (aElement->ContainsRestrictedContent()) {
return result;
}
+#endif
uint16_t readyState;
if (NS_SUCCEEDED(aElement->GetReadyState(&readyState)) &&