mirror of
https://github.com/mozilla/gecko-dev.git
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b71747b2ac
The new name makes the sense of the condition much clearer. E.g. compare: NS_WARN_IF_FALSE(!rv.Failed()); with: NS_WARNING_ASSERTION(!rv.Failed()); The new name also makes it clearer that it only has effect in debug builds, because that's standard for assertions. --HG-- extra : rebase_source : 886e57a9e433e0cb6ed635cc075b34b7ebf81853
1573 lines
50 KiB
C++
1573 lines
50 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DOMMediaStream.h"
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#include "nsContentUtils.h"
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#include "nsServiceManagerUtils.h"
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#include "nsIScriptError.h"
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#include "nsIUUIDGenerator.h"
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#include "nsPIDOMWindow.h"
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#include "mozilla/dom/MediaStreamBinding.h"
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#include "mozilla/dom/MediaStreamTrackEvent.h"
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#include "mozilla/dom/LocalMediaStreamBinding.h"
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#include "mozilla/dom/AudioNode.h"
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#include "AudioChannelAgent.h"
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#include "mozilla/dom/AudioTrack.h"
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#include "mozilla/dom/AudioTrackList.h"
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#include "mozilla/dom/VideoTrack.h"
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#include "mozilla/dom/VideoTrackList.h"
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#include "mozilla/dom/HTMLCanvasElement.h"
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#include "mozilla/media/MediaUtils.h"
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#include "MediaStreamGraph.h"
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#include "AudioStreamTrack.h"
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#include "VideoStreamTrack.h"
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#include "Layers.h"
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// GetCurrentTime is defined in winbase.h as zero argument macro forwarding to
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// GetTickCount() and conflicts with NS_DECL_NSIDOMMEDIASTREAM, containing
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// currentTime getter.
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#ifdef GetCurrentTime
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#undef GetCurrentTime
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#endif
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#ifdef LOG
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#undef LOG
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#endif
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// GetCurrentTime is defined in winbase.h as zero argument macro forwarding to
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// GetTickCount() and conflicts with MediaStream::GetCurrentTime.
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#ifdef GetCurrentTime
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#undef GetCurrentTime
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#endif
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::layers;
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using namespace mozilla::media;
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static LazyLogModule gMediaStreamLog("MediaStream");
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#define LOG(type, msg) MOZ_LOG(gMediaStreamLog, type, msg)
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const TrackID TRACK_VIDEO_PRIMARY = 1;
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DOMMediaStream::TrackPort::TrackPort(MediaInputPort* aInputPort,
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MediaStreamTrack* aTrack,
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const InputPortOwnership aOwnership)
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: mInputPort(aInputPort)
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, mTrack(aTrack)
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, mOwnership(aOwnership)
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{
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// XXX Bug 1124630. nsDOMCameraControl requires adding a track without and
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// input port.
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// MOZ_ASSERT(mInputPort);
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MOZ_ASSERT(mTrack);
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MOZ_COUNT_CTOR(TrackPort);
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}
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DOMMediaStream::TrackPort::~TrackPort()
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{
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MOZ_COUNT_DTOR(TrackPort);
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if (mOwnership == InputPortOwnership::OWNED) {
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DestroyInputPort();
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}
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}
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void
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DOMMediaStream::TrackPort::DestroyInputPort()
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{
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if (mInputPort) {
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mInputPort->Destroy();
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mInputPort = nullptr;
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}
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}
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MediaStream*
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DOMMediaStream::TrackPort::GetSource() const
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{
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return mInputPort ? mInputPort->GetSource() : nullptr;
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}
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TrackID
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DOMMediaStream::TrackPort::GetSourceTrackId() const
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{
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return mInputPort ? mInputPort->GetSourceTrackId() : TRACK_INVALID;
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}
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already_AddRefed<Pledge<bool>>
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DOMMediaStream::TrackPort::BlockSourceTrackId(TrackID aTrackId, BlockingMode aBlockingMode)
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{
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if (mInputPort) {
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return mInputPort->BlockSourceTrackId(aTrackId, aBlockingMode);
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}
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RefPtr<Pledge<bool>> rejected = new Pledge<bool>();
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rejected->Reject(NS_ERROR_FAILURE);
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return rejected.forget();
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}
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NS_IMPL_CYCLE_COLLECTION(DOMMediaStream::TrackPort, mTrack)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMMediaStream::TrackPort, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMMediaStream::TrackPort, Release)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaStreamTrackSourceGetter)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaStreamTrackSourceGetter)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaStreamTrackSourceGetter)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_0(MediaStreamTrackSourceGetter)
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/**
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* Listener registered on the Owned stream to detect added and ended owned
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* tracks for keeping the list of MediaStreamTracks in sync with the tracks
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* added and ended directly at the source.
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*/
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class DOMMediaStream::OwnedStreamListener : public MediaStreamListener {
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public:
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explicit OwnedStreamListener(DOMMediaStream* aStream)
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: mStream(aStream)
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{}
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void Forget() { mStream = nullptr; }
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void DoNotifyTrackCreated(TrackID aTrackID, MediaSegment::Type aType,
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MediaStream* aInputStream, TrackID aInputTrackID)
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (!mStream) {
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return;
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}
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MediaStreamTrack* track =
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mStream->FindOwnedDOMTrack(aInputStream, aInputTrackID, aTrackID);
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if (track) {
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LOG(LogLevel::Debug, ("DOMMediaStream %p Track %d from owned stream %p "
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"bound to MediaStreamTrack %p.",
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mStream, aTrackID, aInputStream, track));
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return;
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}
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// Track had not been created on main thread before, create it now.
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NS_WARNING_ASSERTION(
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!mStream->mTracks.IsEmpty(),
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"A new track was detected on the input stream; creating a corresponding "
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"MediaStreamTrack. Initial tracks should be added manually to "
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"immediately and synchronously be available to JS.");
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RefPtr<MediaStreamTrackSource> source;
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if (mStream->mTrackSourceGetter) {
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source = mStream->mTrackSourceGetter->GetMediaStreamTrackSource(aTrackID);
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}
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if (!source) {
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NS_ASSERTION(false, "Dynamic track created without an explicit TrackSource");
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nsPIDOMWindowInner* window = mStream->GetParentObject();
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nsIDocument* doc = window ? window->GetExtantDoc() : nullptr;
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nsIPrincipal* principal = doc ? doc->NodePrincipal() : nullptr;
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source = new BasicUnstoppableTrackSource(principal);
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}
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RefPtr<MediaStreamTrack> newTrack =
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mStream->CreateDOMTrack(aTrackID, aType, source);
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NS_DispatchToMainThread(NewRunnableMethod<RefPtr<MediaStreamTrack>>(
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mStream, &DOMMediaStream::AddTrackInternal, newTrack));
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}
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void DoNotifyTrackEnded(MediaStream* aInputStream, TrackID aInputTrackID,
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TrackID aTrackID)
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (!mStream) {
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return;
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}
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RefPtr<MediaStreamTrack> track =
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mStream->FindOwnedDOMTrack(aInputStream, aInputTrackID, aTrackID);
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NS_ASSERTION(track, "Owned MediaStreamTracks must be known by the DOMMediaStream");
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if (track) {
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LOG(LogLevel::Debug, ("DOMMediaStream %p MediaStreamTrack %p ended at the source. Marking it ended.",
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mStream, track.get()));
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track->NotifyEnded();
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}
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}
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void NotifyQueuedTrackChanges(MediaStreamGraph* aGraph, TrackID aID,
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StreamTime aTrackOffset, TrackEventCommand aTrackEvents,
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const MediaSegment& aQueuedMedia,
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MediaStream* aInputStream,
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TrackID aInputTrackID) override
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{
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if (aTrackEvents & TrackEventCommand::TRACK_EVENT_CREATED) {
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nsCOMPtr<nsIRunnable> runnable =
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NewRunnableMethod<TrackID, MediaSegment::Type, RefPtr<MediaStream>, TrackID>(
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this, &OwnedStreamListener::DoNotifyTrackCreated,
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aID, aQueuedMedia.GetType(), aInputStream, aInputTrackID);
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aGraph->DispatchToMainThreadAfterStreamStateUpdate(runnable.forget());
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} else if (aTrackEvents & TrackEventCommand::TRACK_EVENT_ENDED) {
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nsCOMPtr<nsIRunnable> runnable =
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NewRunnableMethod<RefPtr<MediaStream>, TrackID, TrackID>(
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this, &OwnedStreamListener::DoNotifyTrackEnded,
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aInputStream, aInputTrackID, aID);
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aGraph->DispatchToMainThreadAfterStreamStateUpdate(runnable.forget());
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}
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}
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private:
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// These fields may only be accessed on the main thread
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DOMMediaStream* mStream;
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};
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/**
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* Listener registered on the Playback stream to detect when tracks end and when
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* all new tracks this iteration have been created - for when several tracks are
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* queued by the source and committed all at once.
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*/
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class DOMMediaStream::PlaybackStreamListener : public MediaStreamListener {
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public:
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explicit PlaybackStreamListener(DOMMediaStream* aStream)
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: mStream(aStream)
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{}
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void Forget()
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{
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MOZ_ASSERT(NS_IsMainThread());
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mStream = nullptr;
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}
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void DoNotifyTrackEnded(MediaStream* aInputStream,
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TrackID aInputTrackID)
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (!mStream) {
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return;
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}
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LOG(LogLevel::Debug, ("DOMMediaStream %p Track %u of stream %p ended",
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mStream, aInputTrackID, aInputStream));
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RefPtr<MediaStreamTrack> track =
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mStream->FindPlaybackDOMTrack(aInputStream, aInputTrackID);
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if (!track) {
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LOG(LogLevel::Debug, ("DOMMediaStream %p Not a playback track.", mStream));
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return;
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}
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LOG(LogLevel::Debug, ("DOMMediaStream %p Playback track; notifying stream listeners.",
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mStream));
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mStream->NotifyTrackRemoved(track);
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RefPtr<TrackPort> endedPort = mStream->FindPlaybackTrackPort(*track);
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NS_ASSERTION(endedPort, "Playback track should have a TrackPort");
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if (endedPort && IsTrackIDExplicit(endedPort->GetSourceTrackId())) {
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// If a track connected to a locked-track input port ends, we destroy the
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// port to allow our playback stream to finish.
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// XXX (bug 1208316) This should not be necessary when MediaStreams don't
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// finish but instead become inactive.
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endedPort->DestroyInputPort();
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}
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}
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void DoNotifyFinishedTrackCreation()
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (!mStream) {
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return;
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}
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// The owned stream listener adds its tracks after another main thread
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// dispatch. We have to do the same to notify of created tracks to stay
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// in sync. (Or NotifyTracksCreated is called before tracks are added).
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NS_DispatchToMainThread(
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NewRunnableMethod(mStream, &DOMMediaStream::NotifyTracksCreated));
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}
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// The methods below are called on the MediaStreamGraph thread.
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void NotifyQueuedTrackChanges(MediaStreamGraph* aGraph, TrackID aID,
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StreamTime aTrackOffset, TrackEventCommand aTrackEvents,
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const MediaSegment& aQueuedMedia,
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MediaStream* aInputStream,
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TrackID aInputTrackID) override
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{
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if (aTrackEvents & TrackEventCommand::TRACK_EVENT_ENDED) {
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nsCOMPtr<nsIRunnable> runnable =
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NewRunnableMethod<RefPtr<MediaStream>, TrackID>(
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this, &PlaybackStreamListener::DoNotifyTrackEnded, aInputStream, aInputTrackID);
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aGraph->DispatchToMainThreadAfterStreamStateUpdate(runnable.forget());
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}
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}
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void NotifyFinishedTrackCreation(MediaStreamGraph* aGraph) override
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{
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nsCOMPtr<nsIRunnable> runnable =
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NewRunnableMethod(this, &PlaybackStreamListener::DoNotifyFinishedTrackCreation);
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aGraph->DispatchToMainThreadAfterStreamStateUpdate(runnable.forget());
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}
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private:
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// These fields may only be accessed on the main thread
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DOMMediaStream* mStream;
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};
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NS_IMPL_CYCLE_COLLECTION_CLASS(DOMMediaStream)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(DOMMediaStream,
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DOMEventTargetHelper)
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tmp->Destroy();
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwnedTracks)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mTracks)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mConsumersToKeepAlive)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mTrackSourceGetter)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mPrincipal)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mVideoPrincipal)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(DOMMediaStream,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwnedTracks)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTracks)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mConsumersToKeepAlive)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTrackSourceGetter)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPrincipal)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVideoPrincipal)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_ADDREF_INHERITED(DOMMediaStream, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(DOMMediaStream, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMMediaStream)
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NS_INTERFACE_MAP_ENTRY(DOMMediaStream)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(DOMLocalMediaStream, DOMMediaStream)
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NS_IMPL_RELEASE_INHERITED(DOMLocalMediaStream, DOMMediaStream)
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NS_INTERFACE_MAP_BEGIN(DOMLocalMediaStream)
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NS_INTERFACE_MAP_ENTRY(DOMLocalMediaStream)
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NS_INTERFACE_MAP_END_INHERITING(DOMMediaStream)
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NS_IMPL_CYCLE_COLLECTION_INHERITED(DOMAudioNodeMediaStream, DOMMediaStream,
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mStreamNode)
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NS_IMPL_ADDREF_INHERITED(DOMAudioNodeMediaStream, DOMMediaStream)
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NS_IMPL_RELEASE_INHERITED(DOMAudioNodeMediaStream, DOMMediaStream)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMAudioNodeMediaStream)
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NS_INTERFACE_MAP_END_INHERITING(DOMMediaStream)
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DOMMediaStream::DOMMediaStream(nsPIDOMWindowInner* aWindow,
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MediaStreamTrackSourceGetter* aTrackSourceGetter)
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: mLogicalStreamStartTime(0), mWindow(aWindow),
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mInputStream(nullptr), mOwnedStream(nullptr), mPlaybackStream(nullptr),
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mTracksPendingRemoval(0), mTrackSourceGetter(aTrackSourceGetter),
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mTracksCreated(false), mNotifiedOfMediaStreamGraphShutdown(false)
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{
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nsresult rv;
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nsCOMPtr<nsIUUIDGenerator> uuidgen =
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do_GetService("@mozilla.org/uuid-generator;1", &rv);
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if (NS_SUCCEEDED(rv) && uuidgen) {
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nsID uuid;
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memset(&uuid, 0, sizeof(uuid));
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rv = uuidgen->GenerateUUIDInPlace(&uuid);
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if (NS_SUCCEEDED(rv)) {
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char buffer[NSID_LENGTH];
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uuid.ToProvidedString(buffer);
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mID = NS_ConvertASCIItoUTF16(buffer);
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}
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}
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}
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DOMMediaStream::~DOMMediaStream()
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{
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Destroy();
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}
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void
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DOMMediaStream::Destroy()
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{
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LOG(LogLevel::Debug, ("DOMMediaStream %p Being destroyed.", this));
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if (mOwnedListener) {
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mOwnedListener->Forget();
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mOwnedListener = nullptr;
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}
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if (mPlaybackListener) {
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mPlaybackListener->Forget();
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mPlaybackListener = nullptr;
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}
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for (const RefPtr<TrackPort>& info : mTracks) {
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// We must remove ourselves from each track's principal change observer list
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// before we die. CC may have cleared info->mTrack so guard against it.
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if (info->GetTrack()) {
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info->GetTrack()->RemovePrincipalChangeObserver(this);
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}
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}
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if (mPlaybackPort) {
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mPlaybackPort->Destroy();
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mPlaybackPort = nullptr;
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}
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if (mOwnedPort) {
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mOwnedPort->Destroy();
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mOwnedPort = nullptr;
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}
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if (mPlaybackStream) {
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mPlaybackStream->UnregisterUser();
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mPlaybackStream = nullptr;
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}
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if (mOwnedStream) {
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mOwnedStream->UnregisterUser();
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mOwnedStream = nullptr;
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}
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if (mInputStream) {
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mInputStream->UnregisterUser();
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mInputStream = nullptr;
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}
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mRunOnTracksAvailable.Clear();
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mTrackListeners.Clear();
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}
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JSObject*
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DOMMediaStream::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return dom::MediaStreamBinding::Wrap(aCx, this, aGivenProto);
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}
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/* static */ already_AddRefed<DOMMediaStream>
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DOMMediaStream::Constructor(const GlobalObject& aGlobal,
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ErrorResult& aRv)
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{
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Sequence<OwningNonNull<MediaStreamTrack>> emptyTrackSeq;
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return Constructor(aGlobal, emptyTrackSeq, aRv);
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}
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/* static */ already_AddRefed<DOMMediaStream>
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DOMMediaStream::Constructor(const GlobalObject& aGlobal,
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const DOMMediaStream& aStream,
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ErrorResult& aRv)
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{
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nsTArray<RefPtr<MediaStreamTrack>> tracks;
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aStream.GetTracks(tracks);
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Sequence<OwningNonNull<MediaStreamTrack>> nonNullTrackSeq;
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if (!nonNullTrackSeq.SetLength(tracks.Length(), fallible)) {
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MOZ_ASSERT(false);
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return nullptr;
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}
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for (size_t i = 0; i < tracks.Length(); ++i) {
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nonNullTrackSeq[i] = tracks[i];
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}
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return Constructor(aGlobal, nonNullTrackSeq, aRv);
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}
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/* static */ already_AddRefed<DOMMediaStream>
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DOMMediaStream::Constructor(const GlobalObject& aGlobal,
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const Sequence<OwningNonNull<MediaStreamTrack>>& aTracks,
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ErrorResult& aRv)
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{
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nsCOMPtr<nsPIDOMWindowInner> ownerWindow = do_QueryInterface(aGlobal.GetAsSupports());
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if (!ownerWindow) {
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|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
|
|
// Streams created from JS cannot have dynamically created tracks.
|
|
MediaStreamTrackSourceGetter* getter = nullptr;
|
|
RefPtr<DOMMediaStream> newStream = new DOMMediaStream(ownerWindow, getter);
|
|
|
|
for (MediaStreamTrack& track : aTracks) {
|
|
if (!newStream->GetPlaybackStream()) {
|
|
MOZ_RELEASE_ASSERT(track.Graph());
|
|
newStream->InitPlaybackStreamCommon(track.Graph());
|
|
}
|
|
newStream->AddTrack(track);
|
|
}
|
|
|
|
if (!newStream->GetPlaybackStream()) {
|
|
MOZ_ASSERT(aTracks.IsEmpty());
|
|
MediaStreamGraph* graph =
|
|
MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
|
|
AudioChannel::Normal);
|
|
newStream->InitPlaybackStreamCommon(graph);
|
|
}
|
|
|
|
return newStream.forget();
|
|
}
|
|
|
|
double
|
|
DOMMediaStream::CurrentTime()
|
|
{
|
|
if (!mPlaybackStream) {
|
|
return 0.0;
|
|
}
|
|
return mPlaybackStream->
|
|
StreamTimeToSeconds(mPlaybackStream->GetCurrentTime() - mLogicalStreamStartTime);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::GetId(nsAString& aID) const
|
|
{
|
|
aID = mID;
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::GetAudioTracks(nsTArray<RefPtr<AudioStreamTrack> >& aTracks) const
|
|
{
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
AudioStreamTrack* t = info->GetTrack()->AsAudioStreamTrack();
|
|
if (t) {
|
|
aTracks.AppendElement(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::GetVideoTracks(nsTArray<RefPtr<VideoStreamTrack> >& aTracks) const
|
|
{
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
VideoStreamTrack* t = info->GetTrack()->AsVideoStreamTrack();
|
|
if (t) {
|
|
aTracks.AppendElement(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::GetTracks(nsTArray<RefPtr<MediaStreamTrack> >& aTracks) const
|
|
{
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
aTracks.AppendElement(info->GetTrack());
|
|
}
|
|
}
|
|
|
|
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.mOwningStream.get(), aTrack.mTrackID));
|
|
|
|
if (mPlaybackStream->Graph() != aTrack.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.Graph()));
|
|
|
|
nsAutoString trackId;
|
|
aTrack.GetId(trackId);
|
|
const char16_t* params[] = { trackId.get() };
|
|
nsCOMPtr<nsPIDOMWindowInner> pWindow = 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;
|
|
}
|
|
|
|
// Hook up the underlying track with our underlying playback stream.
|
|
RefPtr<MediaInputPort> inputPort =
|
|
GetPlaybackStream()->AllocateInputPort(aTrack.GetOwnedStream(),
|
|
aTrack.mTrackID);
|
|
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.mOwningStream.get(), aTrack.mTrackID));
|
|
|
|
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.
|
|
// If the track has already ended, it's input port might be gone, so in those
|
|
// cases blocking the underlying track should be avoided.
|
|
if (!aTrack.Ended()) {
|
|
BlockPlaybackTrack(toRemove);
|
|
}
|
|
|
|
DebugOnly<bool> removed = mTracks.RemoveElement(toRemove);
|
|
MOZ_ASSERT(removed);
|
|
|
|
NotifyTrackRemoved(&aTrack);
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Removed track %p", this, &aTrack));
|
|
}
|
|
|
|
class ClonedStreamSourceGetter :
|
|
public MediaStreamTrackSourceGetter
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ClonedStreamSourceGetter,
|
|
MediaStreamTrackSourceGetter)
|
|
|
|
explicit ClonedStreamSourceGetter(DOMMediaStream* aStream)
|
|
: mStream(aStream) {}
|
|
|
|
already_AddRefed<MediaStreamTrackSource>
|
|
GetMediaStreamTrackSource(TrackID aInputTrackID) override
|
|
{
|
|
MediaStreamTrack* sourceTrack =
|
|
mStream->FindOwnedDOMTrack(mStream->GetOwnedStream(), aInputTrackID);
|
|
MOZ_RELEASE_ASSERT(sourceTrack);
|
|
|
|
return do_AddRef(&sourceTrack->GetSource());
|
|
}
|
|
|
|
protected:
|
|
virtual ~ClonedStreamSourceGetter() {}
|
|
|
|
RefPtr<DOMMediaStream> mStream;
|
|
};
|
|
|
|
NS_IMPL_ADDREF_INHERITED(ClonedStreamSourceGetter,
|
|
MediaStreamTrackSourceGetter)
|
|
NS_IMPL_RELEASE_INHERITED(ClonedStreamSourceGetter,
|
|
MediaStreamTrackSourceGetter)
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ClonedStreamSourceGetter)
|
|
NS_INTERFACE_MAP_END_INHERITING(MediaStreamTrackSourceGetter)
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(ClonedStreamSourceGetter,
|
|
MediaStreamTrackSourceGetter,
|
|
mStream)
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
DOMMediaStream::Clone()
|
|
{
|
|
return CloneInternal(TrackForwardingOption::CURRENT);
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
DOMMediaStream::CloneInternal(TrackForwardingOption aForwarding)
|
|
{
|
|
RefPtr<DOMMediaStream> newStream =
|
|
new DOMMediaStream(GetParentObject(), new ClonedStreamSourceGetter(this));
|
|
|
|
LOG(LogLevel::Info, ("DOMMediaStream %p created clone %p, forwarding %s tracks",
|
|
this, newStream.get(),
|
|
aForwarding == TrackForwardingOption::ALL
|
|
? "all" : "current"));
|
|
|
|
MOZ_RELEASE_ASSERT(mPlaybackStream);
|
|
MOZ_RELEASE_ASSERT(mPlaybackStream->Graph());
|
|
MediaStreamGraph* graph = mPlaybackStream->Graph();
|
|
|
|
// We initiate the owned and playback streams first, since we need to create
|
|
// all existing DOM tracks before we add the generic input port from
|
|
// mInputStream to mOwnedStream (see AllocateInputPort wrt. destination
|
|
// TrackID as to why).
|
|
newStream->InitOwnedStreamCommon(graph);
|
|
newStream->InitPlaybackStreamCommon(graph);
|
|
|
|
// Set up existing DOM tracks.
|
|
TrackID allocatedTrackID = 1;
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
MediaStreamTrack& track = *info->GetTrack();
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p forwarding external track %p to clone %p",
|
|
this, &track, newStream.get()));
|
|
RefPtr<MediaStreamTrack> trackClone =
|
|
newStream->CloneDOMTrack(track, allocatedTrackID++);
|
|
}
|
|
|
|
if (aForwarding == TrackForwardingOption::ALL) {
|
|
// Set up an input port from our input stream to the new DOM stream's owned
|
|
// stream, to allow for dynamically added tracks at the source to appear in
|
|
// the clone. The clone may treat mInputStream as its own mInputStream but
|
|
// ownership remains with us.
|
|
newStream->mInputStream = mInputStream;
|
|
if (mInputStream) {
|
|
// We have already set up track-locked input ports for all existing DOM
|
|
// tracks, so now we need to block those in the generic input port to
|
|
// avoid ending up with double instances of them.
|
|
nsTArray<TrackID> tracksToBlock;
|
|
for (const RefPtr<TrackPort>& info : mOwnedTracks) {
|
|
tracksToBlock.AppendElement(info->GetTrack()->mTrackID);
|
|
}
|
|
|
|
newStream->mInputStream->RegisterUser();
|
|
newStream->mOwnedPort =
|
|
newStream->mOwnedStream->AllocateInputPort(mInputStream,
|
|
TRACK_ANY, TRACK_ANY, 0, 0,
|
|
&tracksToBlock);
|
|
}
|
|
}
|
|
|
|
return newStream.forget();
|
|
}
|
|
|
|
MediaStreamTrack*
|
|
DOMMediaStream::GetTrackById(const nsAString& aId) const
|
|
{
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
nsString id;
|
|
info->GetTrack()->GetId(id);
|
|
if (id == aId) {
|
|
return info->GetTrack();
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
MediaStreamTrack*
|
|
DOMMediaStream::GetOwnedTrackById(const nsAString& aId)
|
|
{
|
|
for (const RefPtr<TrackPort>& info : mOwnedTracks) {
|
|
nsString id;
|
|
info->GetTrack()->GetId(id);
|
|
if (id == aId) {
|
|
return info->GetTrack();
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool
|
|
DOMMediaStream::HasTrack(const MediaStreamTrack& aTrack) const
|
|
{
|
|
return !!FindPlaybackTrackPort(aTrack);
|
|
}
|
|
|
|
bool
|
|
DOMMediaStream::OwnsTrack(const MediaStreamTrack& aTrack) const
|
|
{
|
|
return !!FindOwnedTrackPort(aTrack);
|
|
}
|
|
|
|
bool
|
|
DOMMediaStream::AddDirectListener(DirectMediaStreamListener* aListener)
|
|
{
|
|
if (GetInputStream() && GetInputStream()->AsSourceStream()) {
|
|
GetInputStream()->AsSourceStream()->AddDirectListener(aListener);
|
|
return true; // application should ignore NotifyQueuedTrackData
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::RemoveDirectListener(DirectMediaStreamListener* aListener)
|
|
{
|
|
if (GetInputStream() && GetInputStream()->AsSourceStream()) {
|
|
GetInputStream()->AsSourceStream()->RemoveDirectListener(aListener);
|
|
}
|
|
}
|
|
|
|
bool
|
|
DOMMediaStream::IsFinished()
|
|
{
|
|
return !mPlaybackStream || mPlaybackStream->IsFinished();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitSourceStream(MediaStreamGraph* aGraph)
|
|
{
|
|
InitInputStreamCommon(aGraph->CreateSourceStream(), aGraph);
|
|
InitOwnedStreamCommon(aGraph);
|
|
InitPlaybackStreamCommon(aGraph);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitTrackUnionStream(MediaStreamGraph* aGraph)
|
|
{
|
|
InitInputStreamCommon(aGraph->CreateTrackUnionStream(), aGraph);
|
|
InitOwnedStreamCommon(aGraph);
|
|
InitPlaybackStreamCommon(aGraph);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitAudioCaptureStream(nsIPrincipal* aPrincipal, MediaStreamGraph* aGraph)
|
|
{
|
|
const TrackID AUDIO_TRACK = 1;
|
|
|
|
RefPtr<BasicUnstoppableTrackSource> audioCaptureSource =
|
|
new BasicUnstoppableTrackSource(aPrincipal, MediaSourceEnum::AudioCapture);
|
|
|
|
AudioCaptureStream* audioCaptureStream =
|
|
static_cast<AudioCaptureStream*>(aGraph->CreateAudioCaptureStream(AUDIO_TRACK));
|
|
InitInputStreamCommon(audioCaptureStream, aGraph);
|
|
InitOwnedStreamCommon(aGraph);
|
|
InitPlaybackStreamCommon(aGraph);
|
|
RefPtr<MediaStreamTrack> track =
|
|
CreateDOMTrack(AUDIO_TRACK, MediaSegment::AUDIO, audioCaptureSource);
|
|
AddTrackInternal(track);
|
|
|
|
audioCaptureStream->Start();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitInputStreamCommon(MediaStream* aStream,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
MOZ_ASSERT(!mOwnedStream, "Input stream must be initialized before owned stream");
|
|
|
|
mInputStream = aStream;
|
|
mInputStream->RegisterUser();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitOwnedStreamCommon(MediaStreamGraph* aGraph)
|
|
{
|
|
MOZ_ASSERT(!mPlaybackStream, "Owned stream must be initialized before playback stream");
|
|
|
|
mOwnedStream = aGraph->CreateTrackUnionStream();
|
|
mOwnedStream->SetAutofinish(true);
|
|
mOwnedStream->RegisterUser();
|
|
if (mInputStream) {
|
|
mOwnedPort = mOwnedStream->AllocateInputPort(mInputStream);
|
|
}
|
|
|
|
// Setup track listeners
|
|
mOwnedListener = new OwnedStreamListener(this);
|
|
mOwnedStream->AddListener(mOwnedListener);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::InitPlaybackStreamCommon(MediaStreamGraph* aGraph)
|
|
{
|
|
mPlaybackStream = aGraph->CreateTrackUnionStream();
|
|
mPlaybackStream->SetAutofinish(true);
|
|
mPlaybackStream->RegisterUser();
|
|
if (mOwnedStream) {
|
|
mPlaybackPort = mPlaybackStream->AllocateInputPort(mOwnedStream);
|
|
}
|
|
|
|
mPlaybackListener = new PlaybackStreamListener(this);
|
|
mPlaybackStream->AddListener(mPlaybackListener);
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Initiated with mInputStream=%p, mOwnedStream=%p, mPlaybackStream=%p",
|
|
this, mInputStream, mOwnedStream, mPlaybackStream));
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
DOMMediaStream::CreateSourceStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
MediaStreamGraph* aGraph,
|
|
MediaStreamTrackSourceGetter* aTrackSourceGetter)
|
|
{
|
|
RefPtr<DOMMediaStream> stream = new DOMMediaStream(aWindow, aTrackSourceGetter);
|
|
stream->InitSourceStream(aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
DOMMediaStream::CreateTrackUnionStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
MediaStreamGraph* aGraph,
|
|
MediaStreamTrackSourceGetter* aTrackSourceGetter)
|
|
{
|
|
RefPtr<DOMMediaStream> stream = new DOMMediaStream(aWindow, aTrackSourceGetter);
|
|
stream->InitTrackUnionStream(aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMMediaStream>
|
|
DOMMediaStream::CreateAudioCaptureStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
nsIPrincipal* aPrincipal,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
// Audio capture doesn't create tracks dynamically
|
|
MediaStreamTrackSourceGetter* getter = nullptr;
|
|
RefPtr<DOMMediaStream> stream = new DOMMediaStream(aWindow, getter);
|
|
stream->InitAudioCaptureStream(aPrincipal, aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::PrincipalChanged(MediaStreamTrack* aTrack)
|
|
{
|
|
MOZ_ASSERT(aTrack);
|
|
NS_ASSERTION(HasTrack(*aTrack), "Principal changed for an unknown track");
|
|
LOG(LogLevel::Info, ("DOMMediaStream %p Principal changed for track %p",
|
|
this, aTrack));
|
|
RecomputePrincipal();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::RecomputePrincipal()
|
|
{
|
|
nsCOMPtr<nsIPrincipal> previousPrincipal = mPrincipal.forget();
|
|
nsCOMPtr<nsIPrincipal> previousVideoPrincipal = mVideoPrincipal.forget();
|
|
|
|
if (mTracksPendingRemoval > 0) {
|
|
LOG(LogLevel::Info, ("DOMMediaStream %p RecomputePrincipal() Cannot "
|
|
"recompute stream principal with tracks pending "
|
|
"removal.", this));
|
|
return;
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Recomputing principal. "
|
|
"Old principal was %p.", this, previousPrincipal.get()));
|
|
|
|
// mPrincipal is recomputed based on all current tracks, and tracks that have
|
|
// not ended in our playback stream.
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
if (info->GetTrack()->Ended()) {
|
|
continue;
|
|
}
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Taking live track %p with "
|
|
"principal %p into account.", this,
|
|
info->GetTrack(), info->GetTrack()->GetPrincipal()));
|
|
nsContentUtils::CombineResourcePrincipals(&mPrincipal,
|
|
info->GetTrack()->GetPrincipal());
|
|
if (info->GetTrack()->AsVideoStreamTrack()) {
|
|
nsContentUtils::CombineResourcePrincipals(&mVideoPrincipal,
|
|
info->GetTrack()->GetPrincipal());
|
|
}
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p new principal is %p.",
|
|
this, mPrincipal.get()));
|
|
|
|
if (previousPrincipal != mPrincipal ||
|
|
previousVideoPrincipal != mVideoPrincipal) {
|
|
NotifyPrincipalChanged();
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::NotifyPrincipalChanged()
|
|
{
|
|
if (!mPrincipal) {
|
|
// When all tracks are removed, mPrincipal will change to nullptr.
|
|
LOG(LogLevel::Info, ("DOMMediaStream %p Principal changed to nothing.",
|
|
this));
|
|
} else {
|
|
LOG(LogLevel::Info, ("DOMMediaStream %p Principal changed. Now: "
|
|
"null=%d, codebase=%d, expanded=%d, system=%d", this,
|
|
mPrincipal->GetIsNullPrincipal(),
|
|
mPrincipal->GetIsCodebasePrincipal(),
|
|
mPrincipal->GetIsExpandedPrincipal(),
|
|
mPrincipal->GetIsSystemPrincipal()));
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mPrincipalChangeObservers.Length(); ++i) {
|
|
mPrincipalChangeObservers[i]->PrincipalChanged(this);
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
DOMMediaStream::AddPrincipalChangeObserver(
|
|
PrincipalChangeObserver<DOMMediaStream>* aObserver)
|
|
{
|
|
return mPrincipalChangeObservers.AppendElement(aObserver) != nullptr;
|
|
}
|
|
|
|
bool
|
|
DOMMediaStream::RemovePrincipalChangeObserver(
|
|
PrincipalChangeObserver<DOMMediaStream>* aObserver)
|
|
{
|
|
return mPrincipalChangeObservers.RemoveElement(aObserver);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::AddTrackInternal(MediaStreamTrack* aTrack)
|
|
{
|
|
MOZ_ASSERT(aTrack->mOwningStream == this);
|
|
MOZ_ASSERT(FindOwnedDOMTrack(aTrack->GetInputStream(),
|
|
aTrack->mInputTrackID,
|
|
aTrack->mTrackID));
|
|
MOZ_ASSERT(!FindPlaybackDOMTrack(aTrack->GetOwnedStream(),
|
|
aTrack->mTrackID));
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Adding owned track %p", this, aTrack));
|
|
|
|
mTracks.AppendElement(
|
|
new TrackPort(mPlaybackPort, aTrack, TrackPort::InputPortOwnership::EXTERNAL));
|
|
|
|
NotifyTrackAdded(aTrack);
|
|
|
|
DispatchTrackEvent(NS_LITERAL_STRING("addtrack"), aTrack);
|
|
}
|
|
|
|
already_AddRefed<MediaStreamTrack>
|
|
DOMMediaStream::CreateDOMTrack(TrackID aTrackID, MediaSegment::Type aType,
|
|
MediaStreamTrackSource* aSource,
|
|
const MediaTrackConstraints& aConstraints)
|
|
{
|
|
MOZ_RELEASE_ASSERT(mInputStream);
|
|
MOZ_RELEASE_ASSERT(mOwnedStream);
|
|
|
|
MOZ_ASSERT(FindOwnedDOMTrack(GetInputStream(), aTrackID) == nullptr);
|
|
|
|
RefPtr<MediaStreamTrack> track;
|
|
switch (aType) {
|
|
case MediaSegment::AUDIO:
|
|
track = new AudioStreamTrack(this, aTrackID, aTrackID, aSource, aConstraints);
|
|
break;
|
|
case MediaSegment::VIDEO:
|
|
track = new VideoStreamTrack(this, aTrackID, aTrackID, aSource, aConstraints);
|
|
break;
|
|
default:
|
|
MOZ_CRASH("Unhandled track type");
|
|
}
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Created new track %p with ID %u",
|
|
this, track.get(), aTrackID));
|
|
|
|
mOwnedTracks.AppendElement(
|
|
new TrackPort(mOwnedPort, track, TrackPort::InputPortOwnership::EXTERNAL));
|
|
|
|
return track.forget();
|
|
}
|
|
|
|
already_AddRefed<MediaStreamTrack>
|
|
DOMMediaStream::CloneDOMTrack(MediaStreamTrack& aTrack,
|
|
TrackID aCloneTrackID)
|
|
{
|
|
MOZ_RELEASE_ASSERT(mOwnedStream);
|
|
MOZ_RELEASE_ASSERT(mPlaybackStream);
|
|
MOZ_RELEASE_ASSERT(IsTrackIDExplicit(aCloneTrackID));
|
|
|
|
TrackID inputTrackID = aTrack.mInputTrackID;
|
|
MediaStream* inputStream = aTrack.GetInputStream();
|
|
|
|
RefPtr<MediaStreamTrack> newTrack = aTrack.CloneInternal(this, aCloneTrackID);
|
|
|
|
newTrack->mOriginalTrack =
|
|
aTrack.mOriginalTrack ? aTrack.mOriginalTrack.get() : &aTrack;
|
|
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Created new track %p cloned from stream %p track %d",
|
|
this, newTrack.get(), inputStream, inputTrackID));
|
|
|
|
RefPtr<MediaInputPort> inputPort =
|
|
mOwnedStream->AllocateInputPort(inputStream, inputTrackID, aCloneTrackID);
|
|
|
|
mOwnedTracks.AppendElement(
|
|
new TrackPort(inputPort, newTrack, TrackPort::InputPortOwnership::OWNED));
|
|
|
|
mTracks.AppendElement(
|
|
new TrackPort(mPlaybackPort, newTrack, TrackPort::InputPortOwnership::EXTERNAL));
|
|
|
|
NotifyTrackAdded(newTrack);
|
|
|
|
newTrack->SetEnabled(aTrack.Enabled());
|
|
newTrack->SetReadyState(aTrack.ReadyState());
|
|
|
|
if (aTrack.Ended()) {
|
|
// For extra suspenders, make sure that we don't forward data by mistake
|
|
// to the clone when the original has already ended.
|
|
// We only block END_EXISTING to allow any pending clones to end.
|
|
RefPtr<Pledge<bool, nsresult>> blockingPledge =
|
|
inputPort->BlockSourceTrackId(inputTrackID,
|
|
BlockingMode::END_EXISTING);
|
|
Unused << blockingPledge;
|
|
}
|
|
|
|
return newTrack.forget();
|
|
}
|
|
|
|
static DOMMediaStream::TrackPort*
|
|
FindTrackPortAmongTracks(const MediaStreamTrack& aTrack,
|
|
const nsTArray<RefPtr<DOMMediaStream::TrackPort>>& aTracks)
|
|
{
|
|
for (const RefPtr<DOMMediaStream::TrackPort>& info : aTracks) {
|
|
if (info->GetTrack() == &aTrack) {
|
|
return info;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
MediaStreamTrack*
|
|
DOMMediaStream::FindOwnedDOMTrack(MediaStream* aInputStream,
|
|
TrackID aInputTrackID,
|
|
TrackID aTrackID) const
|
|
{
|
|
MOZ_RELEASE_ASSERT(mOwnedStream);
|
|
|
|
for (const RefPtr<TrackPort>& info : mOwnedTracks) {
|
|
if (info->GetInputPort() &&
|
|
info->GetInputPort()->GetSource() == aInputStream &&
|
|
info->GetTrack()->mInputTrackID == aInputTrackID &&
|
|
(aTrackID == TRACK_ANY || info->GetTrack()->mTrackID == aTrackID)) {
|
|
// This track is owned externally but in our playback stream.
|
|
return info->GetTrack();
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
DOMMediaStream::TrackPort*
|
|
DOMMediaStream::FindOwnedTrackPort(const MediaStreamTrack& aTrack) const
|
|
{
|
|
return FindTrackPortAmongTracks(aTrack, mOwnedTracks);
|
|
}
|
|
|
|
|
|
MediaStreamTrack*
|
|
DOMMediaStream::FindPlaybackDOMTrack(MediaStream* aInputStream, TrackID aInputTrackID) const
|
|
{
|
|
if (!mPlaybackStream) {
|
|
// One would think we can assert mPlaybackStream here, but track clones have
|
|
// a dummy DOMMediaStream that doesn't have a playback stream, so we can't.
|
|
return nullptr;
|
|
}
|
|
|
|
for (const RefPtr<TrackPort>& info : mTracks) {
|
|
if (info->GetInputPort() == mPlaybackPort &&
|
|
aInputStream == mOwnedStream &&
|
|
info->GetTrack()->mInputTrackID == aInputTrackID) {
|
|
// This track is in our owned and playback streams.
|
|
return info->GetTrack();
|
|
}
|
|
if (info->GetInputPort() &&
|
|
info->GetInputPort()->GetSource() == aInputStream &&
|
|
info->GetSourceTrackId() == aInputTrackID) {
|
|
// This track is owned externally but in our playback stream.
|
|
MOZ_ASSERT(IsTrackIDExplicit(aInputTrackID));
|
|
return info->GetTrack();
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
DOMMediaStream::TrackPort*
|
|
DOMMediaStream::FindPlaybackTrackPort(const MediaStreamTrack& aTrack) const
|
|
{
|
|
return FindTrackPortAmongTracks(aTrack, mTracks);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::OnTracksAvailable(OnTracksAvailableCallback* aRunnable)
|
|
{
|
|
if (mNotifiedOfMediaStreamGraphShutdown) {
|
|
// No more tracks will ever be added, so just delete the callback now.
|
|
delete aRunnable;
|
|
return;
|
|
}
|
|
mRunOnTracksAvailable.AppendElement(aRunnable);
|
|
CheckTracksAvailable();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::NotifyTracksCreated()
|
|
{
|
|
mTracksCreated = true;
|
|
CheckTracksAvailable();
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::CheckTracksAvailable()
|
|
{
|
|
if (!mTracksCreated) {
|
|
return;
|
|
}
|
|
nsTArray<nsAutoPtr<OnTracksAvailableCallback> > callbacks;
|
|
callbacks.SwapElements(mRunOnTracksAvailable);
|
|
|
|
for (uint32_t i = 0; i < callbacks.Length(); ++i) {
|
|
callbacks[i]->NotifyTracksAvailable(this);
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::RegisterTrackListener(TrackListener* aListener)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (mNotifiedOfMediaStreamGraphShutdown) {
|
|
// No more tracks will ever be added, so just do nothing.
|
|
return;
|
|
}
|
|
mTrackListeners.AppendElement(aListener);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::UnregisterTrackListener(TrackListener* aListener)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mTrackListeners.RemoveElement(aListener);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::NotifyTrackAdded(const RefPtr<MediaStreamTrack>& aTrack)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (mTracksPendingRemoval > 0) {
|
|
// If there are tracks pending removal we may not degrade the current
|
|
// principals until those tracks have been confirmed removed from the
|
|
// playback stream. Instead combine with the new track and the (potentially)
|
|
// degraded principal will be calculated when it's safe.
|
|
nsContentUtils::CombineResourcePrincipals(&mPrincipal,
|
|
aTrack->GetPrincipal());
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p saw a track get added. Combining "
|
|
"its principal %p into our while waiting for pending "
|
|
"tracks to be removed. New principal is %p.",
|
|
this, aTrack->GetPrincipal(), mPrincipal.get()));
|
|
if (aTrack->AsVideoStreamTrack()) {
|
|
nsContentUtils::CombineResourcePrincipals(&mVideoPrincipal,
|
|
aTrack->GetPrincipal());
|
|
}
|
|
} else {
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p saw a track get added. "
|
|
"Recomputing principal.", this));
|
|
RecomputePrincipal();
|
|
}
|
|
|
|
aTrack->AddPrincipalChangeObserver(this);
|
|
|
|
for (int32_t i = mTrackListeners.Length() - 1; i >= 0; --i) {
|
|
mTrackListeners[i]->NotifyTrackAdded(aTrack);
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::NotifyTrackRemoved(const RefPtr<MediaStreamTrack>& aTrack)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
aTrack->RemovePrincipalChangeObserver(this);
|
|
|
|
for (int32_t i = mTrackListeners.Length() - 1; i >= 0; --i) {
|
|
mTrackListeners[i]->NotifyTrackRemoved(aTrack);
|
|
}
|
|
|
|
// Don't call RecomputePrincipal here as the track may still exist in the
|
|
// playback stream in the MediaStreamGraph. It will instead be called when the
|
|
// track has been confirmed removed by the graph. See BlockPlaybackTrack().
|
|
}
|
|
|
|
nsresult
|
|
DOMMediaStream::DispatchTrackEvent(const nsAString& aName,
|
|
const RefPtr<MediaStreamTrack>& aTrack)
|
|
{
|
|
MOZ_ASSERT(aName == NS_LITERAL_STRING("addtrack"),
|
|
"Only 'addtrack' is supported at this time");
|
|
|
|
MediaStreamTrackEventInit init;
|
|
init.mTrack = aTrack;
|
|
|
|
RefPtr<MediaStreamTrackEvent> event =
|
|
MediaStreamTrackEvent::Constructor(this, aName, init);
|
|
|
|
return DispatchTrustedEvent(event);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::CreateAndAddPlaybackStreamListener(MediaStream* aStream)
|
|
{
|
|
MOZ_ASSERT(GetCameraStream(), "I'm a hack. Only DOMCameraControl may use me.");
|
|
mPlaybackListener = new PlaybackStreamListener(this);
|
|
aStream->AddListener(mPlaybackListener);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::BlockPlaybackTrack(TrackPort* aTrack)
|
|
{
|
|
MOZ_ASSERT(aTrack);
|
|
++mTracksPendingRemoval;
|
|
RefPtr<Pledge<bool>> p =
|
|
aTrack->BlockSourceTrackId(aTrack->GetTrack()->mTrackID,
|
|
BlockingMode::CREATION);
|
|
RefPtr<DOMMediaStream> self = this;
|
|
p->Then([self] (const bool& aIgnore) { self->NotifyPlaybackTrackBlocked(); },
|
|
[] (const nsresult& aIgnore) { NS_ERROR("Could not remove track from MSG"); }
|
|
);
|
|
}
|
|
|
|
void
|
|
DOMMediaStream::NotifyPlaybackTrackBlocked()
|
|
{
|
|
MOZ_ASSERT(mTracksPendingRemoval > 0,
|
|
"A track reported finished blocking more times than we asked for");
|
|
if (--mTracksPendingRemoval == 0) {
|
|
// The MediaStreamGraph has reported a track was blocked and we are not
|
|
// waiting for any further tracks to get blocked. It is now safe to
|
|
// recompute the principal based on our main thread track set state.
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p saw all tracks pending removal "
|
|
"finish. Recomputing principal.", this));
|
|
RecomputePrincipal();
|
|
}
|
|
}
|
|
|
|
DOMLocalMediaStream::~DOMLocalMediaStream()
|
|
{
|
|
if (mInputStream) {
|
|
// Make sure Listeners of this stream know it's going away
|
|
StopImpl();
|
|
}
|
|
}
|
|
|
|
JSObject*
|
|
DOMLocalMediaStream::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
return dom::LocalMediaStreamBinding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
void
|
|
DOMLocalMediaStream::Stop()
|
|
{
|
|
LOG(LogLevel::Debug, ("DOMMediaStream %p Stop()", this));
|
|
nsCOMPtr<nsPIDOMWindowInner> pWindow = GetParentObject();
|
|
nsIDocument* document = pWindow ? pWindow->GetExtantDoc() : nullptr;
|
|
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
|
|
NS_LITERAL_CSTRING("Media"),
|
|
document,
|
|
nsContentUtils::eDOM_PROPERTIES,
|
|
"MediaStreamStopDeprecatedWarning");
|
|
|
|
StopImpl();
|
|
}
|
|
|
|
void
|
|
DOMLocalMediaStream::StopImpl()
|
|
{
|
|
if (mInputStream && mInputStream->AsSourceStream()) {
|
|
mInputStream->AsSourceStream()->EndAllTrackAndFinish();
|
|
}
|
|
}
|
|
|
|
already_AddRefed<DOMLocalMediaStream>
|
|
DOMLocalMediaStream::CreateSourceStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
MediaStreamGraph* aGraph,
|
|
MediaStreamTrackSourceGetter* aTrackSourceGetter)
|
|
{
|
|
RefPtr<DOMLocalMediaStream> stream =
|
|
new DOMLocalMediaStream(aWindow, aTrackSourceGetter);
|
|
stream->InitSourceStream(aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
already_AddRefed<DOMLocalMediaStream>
|
|
DOMLocalMediaStream::CreateTrackUnionStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
MediaStreamGraph* aGraph,
|
|
MediaStreamTrackSourceGetter* aTrackSourceGetter)
|
|
{
|
|
RefPtr<DOMLocalMediaStream> stream =
|
|
new DOMLocalMediaStream(aWindow, aTrackSourceGetter);
|
|
stream->InitTrackUnionStream(aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
DOMAudioNodeMediaStream::DOMAudioNodeMediaStream(nsPIDOMWindowInner* aWindow, AudioNode* aNode)
|
|
: DOMMediaStream(aWindow, nullptr),
|
|
mStreamNode(aNode)
|
|
{
|
|
}
|
|
|
|
DOMAudioNodeMediaStream::~DOMAudioNodeMediaStream()
|
|
{
|
|
}
|
|
|
|
already_AddRefed<DOMAudioNodeMediaStream>
|
|
DOMAudioNodeMediaStream::CreateTrackUnionStreamAsInput(nsPIDOMWindowInner* aWindow,
|
|
AudioNode* aNode,
|
|
MediaStreamGraph* aGraph)
|
|
{
|
|
RefPtr<DOMAudioNodeMediaStream> stream = new DOMAudioNodeMediaStream(aWindow, aNode);
|
|
stream->InitTrackUnionStream(aGraph);
|
|
return stream.forget();
|
|
}
|
|
|
|
DOMHwMediaStream::DOMHwMediaStream(nsPIDOMWindowInner* aWindow)
|
|
: DOMLocalMediaStream(aWindow, nullptr)
|
|
{
|
|
#ifdef MOZ_WIDGET_GONK
|
|
if (!mWindow) {
|
|
NS_ERROR("Expected window here.");
|
|
mPrincipalHandle = PRINCIPAL_HANDLE_NONE;
|
|
return;
|
|
}
|
|
nsIDocument* doc = mWindow->GetExtantDoc();
|
|
if (!doc) {
|
|
NS_ERROR("Expected document here.");
|
|
mPrincipalHandle = PRINCIPAL_HANDLE_NONE;
|
|
return;
|
|
}
|
|
mPrincipalHandle = MakePrincipalHandle(doc->NodePrincipal());
|
|
#endif
|
|
}
|
|
|
|
DOMHwMediaStream::~DOMHwMediaStream()
|
|
{
|
|
}
|
|
|
|
already_AddRefed<DOMHwMediaStream>
|
|
DOMHwMediaStream::CreateHwStream(nsPIDOMWindowInner* aWindow,
|
|
OverlayImage* aImage)
|
|
{
|
|
RefPtr<DOMHwMediaStream> stream = new DOMHwMediaStream(aWindow);
|
|
|
|
MediaStreamGraph* graph =
|
|
MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
|
|
AudioChannel::Normal);
|
|
stream->InitSourceStream(graph);
|
|
stream->Init(stream->GetInputStream(), aImage);
|
|
|
|
return stream.forget();
|
|
}
|
|
|
|
void
|
|
DOMHwMediaStream::Init(MediaStream* stream, OverlayImage* aImage)
|
|
{
|
|
SourceMediaStream* srcStream = stream->AsSourceStream();
|
|
|
|
#ifdef MOZ_WIDGET_GONK
|
|
if (aImage) {
|
|
mOverlayImage = aImage;
|
|
} else {
|
|
Data imageData;
|
|
imageData.mOverlayId = DEFAULT_IMAGE_ID;
|
|
imageData.mSize.width = DEFAULT_IMAGE_WIDTH;
|
|
imageData.mSize.height = DEFAULT_IMAGE_HEIGHT;
|
|
|
|
mOverlayImage = new OverlayImage();
|
|
mOverlayImage->SetData(imageData);
|
|
}
|
|
#endif
|
|
|
|
if (srcStream) {
|
|
VideoSegment segment;
|
|
#ifdef MOZ_WIDGET_GONK
|
|
const StreamTime delta = STREAM_TIME_MAX; // Because MediaStreamGraph will run out frames in non-autoplay mode,
|
|
// we must give it bigger frame length to cover this situation.
|
|
|
|
RefPtr<Image> image = static_cast<Image*>(mOverlayImage.get());
|
|
mozilla::gfx::IntSize size = image->GetSize();
|
|
|
|
segment.AppendFrame(image.forget(), delta, size, mPrincipalHandle);
|
|
#endif
|
|
srcStream->AddTrack(TRACK_VIDEO_PRIMARY, 0, new VideoSegment());
|
|
srcStream->AppendToTrack(TRACK_VIDEO_PRIMARY, &segment);
|
|
srcStream->AdvanceKnownTracksTime(STREAM_TIME_MAX);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
DOMHwMediaStream::RequestOverlayId()
|
|
{
|
|
#ifdef MOZ_WIDGET_GONK
|
|
return mOverlayImage->GetOverlayId();
|
|
#else
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
DOMHwMediaStream::SetImageSize(uint32_t width, uint32_t height)
|
|
{
|
|
#ifdef MOZ_WIDGET_GONK
|
|
if (mOverlayImage->GetSidebandStream().IsValid()) {
|
|
OverlayImage::SidebandStreamData imgData;
|
|
imgData.mStream = mOverlayImage->GetSidebandStream();
|
|
imgData.mSize = IntSize(width, height);
|
|
mOverlayImage->SetData(imgData);
|
|
} else {
|
|
OverlayImage::Data imgData;
|
|
imgData.mOverlayId = mOverlayImage->GetOverlayId();
|
|
imgData.mSize = IntSize(width, height);
|
|
mOverlayImage->SetData(imgData);
|
|
}
|
|
#endif
|
|
|
|
SourceMediaStream* srcStream = GetInputStream()->AsSourceStream();
|
|
StreamTracks::Track* track = srcStream->FindTrack(TRACK_VIDEO_PRIMARY);
|
|
|
|
if (!track || !track->GetSegment()) {
|
|
return;
|
|
}
|
|
|
|
#ifdef MOZ_WIDGET_GONK
|
|
// Clear the old segment.
|
|
// Changing the existing content of segment is a Very BAD thing, and this way will
|
|
// confuse consumers of MediaStreams.
|
|
// It is only acceptable for DOMHwMediaStream
|
|
// because DOMHwMediaStream doesn't have consumers of TV streams currently.
|
|
track->GetSegment()->Clear();
|
|
|
|
// Change the image size.
|
|
const StreamTime delta = STREAM_TIME_MAX;
|
|
RefPtr<Image> image = static_cast<Image*>(mOverlayImage.get());
|
|
mozilla::gfx::IntSize size = image->GetSize();
|
|
VideoSegment segment;
|
|
|
|
segment.AppendFrame(image.forget(), delta, size, mPrincipalHandle);
|
|
srcStream->AppendToTrack(TRACK_VIDEO_PRIMARY, &segment);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
DOMHwMediaStream::SetOverlayImage(OverlayImage* aImage)
|
|
{
|
|
if (!aImage) {
|
|
return;
|
|
}
|
|
#ifdef MOZ_WIDGET_GONK
|
|
mOverlayImage = aImage;
|
|
#endif
|
|
|
|
SourceMediaStream* srcStream = GetInputStream()->AsSourceStream();
|
|
StreamTracks::Track* track = srcStream->FindTrack(TRACK_VIDEO_PRIMARY);
|
|
|
|
if (!track || !track->GetSegment()) {
|
|
return;
|
|
}
|
|
|
|
#ifdef MOZ_WIDGET_GONK
|
|
// Clear the old segment.
|
|
// Changing the existing content of segment is a Very BAD thing, and this way will
|
|
// confuse consumers of MediaStreams.
|
|
// It is only acceptable for DOMHwMediaStream
|
|
// because DOMHwMediaStream doesn't have consumers of TV streams currently.
|
|
track->GetSegment()->Clear();
|
|
|
|
// Change the image size.
|
|
const StreamTime delta = STREAM_TIME_MAX;
|
|
RefPtr<Image> image = static_cast<Image*>(mOverlayImage.get());
|
|
mozilla::gfx::IntSize size = image->GetSize();
|
|
VideoSegment segment;
|
|
|
|
segment.AppendFrame(image.forget(), delta, size, mPrincipalHandle);
|
|
srcStream->AppendToTrack(TRACK_VIDEO_PRIMARY, &segment);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
DOMHwMediaStream::SetOverlayId(int32_t aOverlayId)
|
|
{
|
|
#ifdef MOZ_WIDGET_GONK
|
|
OverlayImage::Data imgData;
|
|
|
|
imgData.mOverlayId = aOverlayId;
|
|
imgData.mSize = mOverlayImage->GetSize();
|
|
|
|
mOverlayImage->SetData(imgData);
|
|
#endif
|
|
}
|