void
DOMMediaStream::AddTrack(MediaStreamTrack& aTrack)
{
MOZ_RELEASE_ASSERT(mPlaybackStream);
RefPtr<ProcessedMediaStream> dest = mPlaybackStream->AsProcessedStream();
MOZ_ASSERT(dest);
if (!dest) {
return;
}
LOG(LogLevel::Info, ("DOMMediaStream %p Adding track %p (from stream %p with ID %d)",
this, &aTrack, aTrack.GetStream(), aTrack.GetTrackID()));
if (mPlaybackStream->Graph() !=
aTrack.GetStream()->mPlaybackStream->Graph()) {
NS_ASSERTION(false, "Cannot combine tracks from different MediaStreamGraphs");
LOG(LogLevel::Error, ("DOMMediaStream %p Own MSG %p != aTrack's MSG %p",
this, mPlaybackStream->Graph(),
aTrack.GetStream()->mPlaybackStream->Graph()));
nsAutoString trackId;
aTrack.GetId(trackId);
const char16_t* params[] = { trackId.get() };
nsCOMPtr<nsPIDOMWindow> pWindow = do_QueryInterface(GetParentObject());
nsIDocument* document = pWindow ? pWindow->GetExtantDoc() : nullptr;
nsContentUtils::ReportToConsole(nsIScriptError::errorFlag,
NS_LITERAL_CSTRING("Media"),
document,
nsContentUtils::eDOM_PROPERTIES,
"MediaStreamAddTrackDifferentAudioChannel",
params, ArrayLength(params));
return;
}
if (HasTrack(aTrack)) {
LOG(LogLevel::Debug, ("DOMMediaStream %p already contains track %p", this, &aTrack));
return;
}
RefPtr<DOMMediaStream> addedDOMStream = aTrack.GetStream();
MOZ_RELEASE_ASSERT(addedDOMStream);
RefPtr<MediaStream> owningStream = addedDOMStream->GetOwnedStream();
MOZ_RELEASE_ASSERT(owningStream);
CombineWithPrincipal(addedDOMStream->mPrincipal);
// Hook up the underlying track with our underlying playback stream.
RefPtr<MediaInputPort> inputPort =
GetPlaybackStream()->AllocateInputPort(owningStream, aTrack.GetTrackID());
RefPtr<TrackPort> trackPort =
new TrackPort(inputPort, &aTrack, TrackPort::InputPortOwnership::OWNED);
mTracks.AppendElement(trackPort.forget());
NotifyTrackAdded(&aTrack);
LOG(LogLevel::Debug, ("DOMMediaStream %p Added track %p", this, &aTrack));
}
void
DOMMediaStream::RemoveTrack(MediaStreamTrack& aTrack)
{
LOG(LogLevel::Info, ("DOMMediaStream %p Removing track %p (from stream %p with ID %d)",
this, &aTrack, aTrack.GetStream(), aTrack.GetTrackID()));
RefPtr<TrackPort> toRemove = FindPlaybackTrackPort(aTrack);
if (!toRemove) {
LOG(LogLevel::Debug, ("DOMMediaStream %p does not contain track %p", this, &aTrack));
return;
}
// If the track comes from a TRACK_ANY input port (i.e., mOwnedPort), we need
// to block it in the port. Doing this for a locked track is still OK as it
// will first block the track, then destroy the port. Both cause the track to
// end.
toRemove->BlockTrackId(aTrack.GetTrackID());
DebugOnly<bool> removed = mTracks.RemoveElement(toRemove);
MOZ_ASSERT(removed);
LOG(LogLevel::Debug, ("DOMMediaStream %p Removed track %p", this, &aTrack));
}
bool
DOMMediaStream::OwnsTrack(const MediaStreamTrack& aTrack) const
{
return (aTrack.GetStream() == this) && HasTrack(aTrack);
}
