VideoStreamTrack.h

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/* -*- 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 VIDEOSTREAMTRACK_H_

#define VIDEOSTREAMTRACK_H_

#include "MediaStreamTrack.h"

#include "DOMMediaStream.h"

namespace mozilla {

class VideoFrameContainer;

class VideoOutput;

namespace dom {

class VideoStreamTrack : public MediaStreamTrack {

 public:

  VideoStreamTrack(

      nsPIDOMWindowInner* aWindow, mozilla::MediaTrack* aInputTrack,

      MediaStreamTrackSource* aSource,

      MediaStreamTrackState aState = MediaStreamTrackState::Live,

      bool aMuted = false,

      const MediaTrackConstraints& aConstraints = MediaTrackConstraints());

  void Destroy() override;

  VideoStreamTrack* AsVideoStreamTrack() override { return this; }

  const VideoStreamTrack* AsVideoStreamTrack() const override { return this; }

  void AddVideoOutput(VideoFrameContainer* aSink);

  void AddVideoOutput(VideoOutput* aOutput);

  void RemoveVideoOutput(VideoFrameContainer* aSink);

  void RemoveVideoOutput(VideoOutput* aOutput);

/**

   * Whether this VideoStreamTrack's video frames will have an alpha channel.

*/

  bool HasAlpha() const { return GetSource().HasAlpha(); }

  // WebIDL

  void GetKind(nsAString& aKind) override { aKind.AssignLiteral("video"); }

  void GetLabel(nsAString& aLabel, CallerType aCallerType) override;

 protected:

  already_AddRefed<MediaStreamTrack> CloneInternal() override;

 private:

  nsTArray<RefPtr<VideoOutput>> mVideoOutputs;

};

}  // namespace dom

}  // namespace mozilla

#endif /* VIDEOSTREAMTRACK_H_ */