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/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef API_VIDEO_VIDEO_SINK_INTERFACE_H_
#define API_VIDEO_VIDEO_SINK_INTERFACE_H_
#include "absl/types/optional.h"
#include "api/video_track_source_constraints.h"
#include "rtc_base/checks.h"
namespace rtc {
template <typename VideoFrameT>
class VideoSinkInterface {
public:
virtual ~VideoSinkInterface() = default;
virtual void OnFrame(const VideoFrameT& frame) = 0;
// Should be called by the source when it discards the frame due to rate
// limiting.
virtual void OnDiscardedFrame() {}
// Called on the network thread when video constraints change.
// TODO(crbug/1255737): make pure virtual once downstream project adapts.
virtual void OnConstraintsChanged(
const webrtc::VideoTrackSourceConstraints& constraints) {}
};
} // namespace rtc
#endif // API_VIDEO_VIDEO_SINK_INTERFACE_H_
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