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Copied from upstream:
https://hg.mozilla.org/releases/mozilla-esr38/raw-rev/beae8783b8c2
# HG changeset patch
# User Paul Adenot <paul@paul.cx>
# Date 1456422965 0
# Node ID beae8783b8c2c672da12a95c70ae663cbd0d5016
# Parent 3a606f8182c82480f8f350b622ab55a170ec1eb6
Bug 1179484. r=roc
MozReview-Commit-ID: HNaYLyMe3sM
diff --git a/dom/media/webaudio/MediaStreamAudioDestinationNode.cpp b/dom/media/webaudio/MediaStreamAudioDestinationNode.cpp
--- a/dom/media/webaudio/MediaStreamAudioDestinationNode.cpp
+++ b/dom/media/webaudio/MediaStreamAudioDestinationNode.cpp
@@ -69,16 +69,20 @@ MediaStreamAudioDestinationNode::MediaSt
ChannelInterpretation::Speakers)
, mDOMStream(DOMAudioNodeMediaStream::CreateTrackUnionStream(GetOwner(),
this))
{
TrackUnionStream* tus = static_cast<TrackUnionStream*>(mDOMStream->GetStream());
MOZ_ASSERT(tus == mDOMStream->GetStream()->AsProcessedStream());
tus->SetTrackIDFilter(FilterAudioNodeStreamTrack);
+ if (aContext->Graph() != tus->Graph()) {
+ return;
+ }
+
MediaStreamDestinationEngine* engine = new MediaStreamDestinationEngine(this, tus);
mStream = aContext->Graph()->CreateAudioNodeStream(engine, MediaStreamGraph::INTERNAL_STREAM);
mPort = tus->AllocateInputPort(mStream, 0);
nsIDocument* doc = aContext->GetParentObject()->GetExtantDoc();
if (doc) {
mDOMStream->CombineWithPrincipal(doc->NodePrincipal());
}
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