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9fb5ec93b1
This lets us separate tracks by ownership like so:
* Input - Owned by the producer of the DOMMediaStream (gUM etc.)
* Owned - Contains Input tracks (per above) or tracks cloned tracks
if this DOMMediaStream is a clone.
* Playback - Contains Owned tracks plus tracks addTrack()ed to this
DOMMediaStream minus tracks removeTrack()ed from this
DOMMediaStream.
74 lines
1.9 KiB
C++
74 lines
1.9 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 "MediaStreamTrack.h"
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#include "DOMMediaStream.h"
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#include "nsIUUIDGenerator.h"
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#include "nsServiceManagerUtils.h"
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namespace mozilla {
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namespace dom {
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MediaStreamTrack::MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID)
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: mOwningStream(aStream), mTrackID(aTrackID), mEnded(false), mEnabled(true)
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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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nsID uuid;
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memset(&uuid, 0, sizeof(uuid));
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if (uuidgen) {
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uuidgen->GenerateUUIDInPlace(&uuid);
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}
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char chars[NSID_LENGTH];
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uuid.ToProvidedString(chars);
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mID = NS_ConvertASCIItoUTF16(chars);
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}
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MediaStreamTrack::~MediaStreamTrack()
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{
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}
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NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaStreamTrack, DOMEventTargetHelper,
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mOwningStream)
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NS_IMPL_ADDREF_INHERITED(MediaStreamTrack, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(MediaStreamTrack, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaStreamTrack)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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void
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MediaStreamTrack::GetId(nsAString& aID) const
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{
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aID = mID;
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}
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void
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MediaStreamTrack::SetEnabled(bool aEnabled)
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{
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mEnabled = aEnabled;
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mOwningStream->SetTrackEnabled(mTrackID, aEnabled);
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}
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void
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MediaStreamTrack::Stop()
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{
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mOwningStream->StopTrack(mTrackID);
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}
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already_AddRefed<Promise>
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MediaStreamTrack::ApplyConstraints(const MediaTrackConstraints& aConstraints,
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ErrorResult &aRv)
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{
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return GetStream()->ApplyConstraintsToTrack(mTrackID, aConstraints, aRv);
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}
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} // namespace dom
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} // namespace mozilla
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