gecko/content/media/MediaStreamTrack.h

65 lines
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MEDIASTREAMTRACK_H_
#define MEDIASTREAMTRACK_H_
#include "nsDOMEventTargetHelper.h"
#include "nsID.h"
#include "StreamBuffer.h"
namespace mozilla {
class DOMMediaStream;
namespace dom {
class AudioStreamTrack;
class VideoStreamTrack;
/**
* Class representing a track in a DOMMediaStream.
*/
class MediaStreamTrack : public nsDOMEventTargetHelper {
public:
/**
* aTrackID is the MediaStreamGraph track ID for the track in the
* MediaStream owned by aStream.
*/
MediaStreamTrack(DOMMediaStream* aStream, TrackID aTrackID);
virtual ~MediaStreamTrack();
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaStreamTrack, nsDOMEventTargetHelper)
DOMMediaStream* GetParentObject() const { return mStream; }
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aScope) MOZ_OVERRIDE = 0;
DOMMediaStream* GetStream() const { return mStream; }
TrackID GetTrackID() const { return mTrackID; }
virtual AudioStreamTrack* AsAudioStreamTrack() { return nullptr; }
virtual VideoStreamTrack* AsVideoStreamTrack() { return nullptr; }
// WebIDL
virtual void GetKind(nsAString& aKind) = 0;
void GetId(nsAString& aID);
void GetLabel(nsAString& aLabel) { aLabel.Truncate(); }
// Notifications from the MediaStreamGraph
void NotifyEnded() { mEnded = true; }
protected:
nsRefPtr<DOMMediaStream> mStream;
TrackID mTrackID;
nsID mID;
bool mEnded;
};
}
}
#endif /* MEDIASTREAMTRACK_H_ */