86 lines
2.4 KiB
C++
86 lines
2.4 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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#ifndef MEDIASTREAMTRACK_H_
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#define MEDIASTREAMTRACK_H_
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#include "mozilla/DOMEventTargetHelper.h"
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#include "nsID.h"
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#include "StreamBuffer.h"
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#include "MediaTrackConstraints.h"
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namespace mozilla {
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class DOMMediaStream;
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namespace dom {
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class AudioStreamTrack;
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class VideoStreamTrack;
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/**
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* Class representing a track in a DOMMediaStream.
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*/
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class MediaStreamTrack : public DOMEventTargetHelper {
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public:
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/**
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* aTrackID is the MediaStreamGraph track ID for the track in the
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* MediaStream owned by aStream.
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*/
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MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaStreamTrack,
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DOMEventTargetHelper)
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DOMMediaStream* GetParentObject() const { return mOwningStream; }
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virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override = 0;
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/**
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* Returns the DOMMediaStream owning this track.
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*/
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DOMMediaStream* GetStream() const { return mOwningStream; }
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/**
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* Returns the TrackID this stream has in its owning DOMMediaStream's Owned
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* stream.
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*/
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TrackID GetTrackID() const { return mTrackID; }
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virtual AudioStreamTrack* AsAudioStreamTrack() { return nullptr; }
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virtual VideoStreamTrack* AsVideoStreamTrack() { return nullptr; }
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// WebIDL
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virtual void GetKind(nsAString& aKind) = 0;
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void GetId(nsAString& aID) const;
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void GetLabel(nsAString& aLabel) { aLabel.Truncate(); }
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bool Enabled() { return mEnabled; }
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void SetEnabled(bool aEnabled);
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void Stop();
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already_AddRefed<Promise>
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ApplyConstraints(const dom::MediaTrackConstraints& aConstraints, ErrorResult &aRv);
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bool Ended() const { return mEnded; }
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// Notifications from the MediaStreamGraph
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void NotifyEnded() { mEnded = true; }
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// Webrtc allows the remote side to name tracks whatever it wants, and we
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// need to surface this to content.
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void AssignId(const nsAString& aID) { mID = aID; }
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protected:
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virtual ~MediaStreamTrack();
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RefPtr<DOMMediaStream> mOwningStream;
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TrackID mTrackID;
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nsString mID;
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bool mEnded;
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bool mEnabled;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* MEDIASTREAMTRACK_H_ */
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