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Bug 1156472 - Part 6 - Connect HTMLMediaElement and AudioContext to the capture stream when capturing is needed. r=roc

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This commit is contained in:
Paul Adenot
2015-07-24 14:28:17 +02:00
parent ba8696cb81
commit e505cb1e39
4 changed files with 64 additions and 18 deletions
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45
dom/html/HTMLMediaElement.cpp
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@@ -2030,6 +2030,7 @@ HTMLMediaElement::HTMLMediaElement(already_AddRefed<mozilla::dom::NodeInfo>& aNo
mAllowCasting(false),
mIsCasting(false),
mAudioCaptured(false),
mAudioCapturedByWindow(false),
mPlayingBeforeSeek(false),
mPlayingThroughTheAudioChannelBeforeSeek(false),
mPausedForInactiveDocumentOrChannel(false),
@@ -2097,6 +2098,11 @@ HTMLMediaElement::~HTMLMediaElement()
EndSrcMediaStreamPlayback();
}
if (mCaptureStreamPort) {
mCaptureStreamPort->Destroy();
mCaptureStreamPort = nullptr;
}
NS_ASSERTION(MediaElementTableCount(this, mLoadingSrc) == 0,
"Destroyed media element should no longer be in element table");
@@ -4475,8 +4481,7 @@ void HTMLMediaElement::UpdateAudioChannelPlayingState()
(!mPaused &&
(HasAttr(kNameSpaceID_None, nsGkAtoms::loop) ||
(mReadyState >= nsIDOMHTMLMediaElement::HAVE_CURRENT_DATA &&
!IsPlaybackEnded() &&
(!mSrcStream || HasAudio())) ||
!IsPlaybackEnded()) ||
mPlayingThroughTheAudioChannelBeforeSeek));
if (playingThroughTheAudioChannel != mPlayingThroughTheAudioChannel) {
mPlayingThroughTheAudioChannel = playingThroughTheAudioChannel;
@@ -4504,9 +4509,9 @@ void HTMLMediaElement::UpdateAudioChannelPlayingState()
void
HTMLMediaElement::NotifyAudioChannelAgent(bool aPlaying)
{
// Immediately check if this should go to the MSG instead of the normal
// media playback route.
WindowAudioCaptureChanged();
// Immediately check if this should go to the MSG instead of the normal
// media playback route.
WindowAudioCaptureChanged();
// This is needed to pass nsContentUtils::IsCallerChrome().
// AudioChannel API should not called from content but it can happen that
@@ -4680,11 +4685,33 @@ HTMLMediaElement::GetTopLevelPrincipal()
NS_IMETHODIMP HTMLMediaElement::WindowAudioCaptureChanged()
{
MOZ_ASSERT(mAudioChannelAgent);
DebugOnly<bool> captured = OwnerDoc()->GetInnerWindow()->GetAudioCaptured();
MOZ_ASSERT(mAudioChannelAgent);
// Something is going to happen here!!
return NS_OK;
if (!OwnerDoc()->GetInnerWindow()) {
return NS_OK;
}
bool captured = OwnerDoc()->GetInnerWindow()->GetAudioCaptured();
if (captured != mAudioCapturedByWindow) {
if (captured) {
mAudioCapturedByWindow = true;
nsCOMPtr<nsPIDOMWindow> window =
do_QueryInterface(OwnerDoc()->GetParentObject());
uint64_t id = window->WindowID();
MediaStreamGraph* msg = MediaStreamGraph::GetInstance();
if (!mPlaybackStream) {
nsRefPtr<DOMMediaStream> stream = CaptureStreamInternal(false, msg);
mCaptureStreamPort = msg->ConnectToCaptureStream(id, stream->GetStream());
} else {
mCaptureStreamPort = msg->ConnectToCaptureStream(id, mPlaybackStream->GetStream());
}
} else {
// TODO: uncapture
}
}
return NS_OK;
}
AudioTrackList*