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Bug 1582294 - Set up HTMLMediaElement to convey video track alpha channel when playing a MediaStream. r=bryce

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Differential Revision: https://phabricator.services.mozilla.com/D92898
This commit is contained in:
Andreas Pehrson
2020-10-19 15:35:13 +00:00
parent 1ecfd69b85
commit 62c6a3cb6b
3 changed files with 17 additions and 0 deletions
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6
dom/html/HTMLMediaElement.cpp
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@@ -2660,6 +2660,9 @@ void HTMLMediaElement::NotifyMediaTrackEnabled(dom::MediaTrack* aTrack) {
if (mSecondaryMediaStreamRenderer) {
mSecondaryMediaStreamRenderer->AddTrack(mSelectedVideoStreamTrack);
}
if (mMediaInfo.HasVideo()) {
mMediaInfo.mVideo.SetAlpha(mSelectedVideoStreamTrack->HasAlpha());
}
nsContentUtils::CombineResourcePrincipals(
&mSrcStreamVideoPrincipal, mSelectedVideoStreamTrack->GetPrincipal());
}
@@ -5825,6 +5828,9 @@ void HTMLMediaElement::UpdateReadyStateInternal() {
}
if (hasVideoTracks) {
mediaInfo.EnableVideo();
if (mSelectedVideoStreamTrack) {
mediaInfo.mVideo.SetAlpha(mSelectedVideoStreamTrack->HasAlpha());
}
}
MetadataLoaded(&mediaInfo, nullptr);
}