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+/* -*- 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_ */