/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* 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 MEDIASTREAMVIDEOSINK_H_

#define MEDIASTREAMVIDEOSINK_H_

#include "mozilla/Pair.h"

#include "gfxPoint.h"

#include "MediaStreamListener.h"

namespace mozilla {

class VideoFrameContainer;

/**

 * Base class of MediaStreamVideoSink family. This is the output of MediaStream.

 */

class MediaStreamVideoSink : public DirectMediaStreamTrackListener {

public:

  // Method of DirectMediaStreamTrackListener.

  void NotifyRealtimeTrackData(MediaStreamGraph* aGraph,

                               StreamTime aTrackOffset,

                               const MediaSegment& aMedia) override;

  // Call on any thread

  virtual void SetCurrentFrames(const VideoSegment& aSegment) = 0;

  virtual void ClearFrames() = 0;

  virtual VideoFrameContainer* AsVideoFrameContainer() { return nullptr; }

  virtual void Invalidate() {}

  virtual MediaStreamVideoSink* AsMediaStreamVideoSink() override { return this; }

protected:

  virtual ~MediaStreamVideoSink() {};

};

} // namespace mozilla

#endif /* MEDIASTREAMVIDEOSINK_H_ */