| /* | 
 |  *  Copyright (c) 2020 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 COMMON_VIDEO_FRAME_COUNTS_H_ | 
 | #define COMMON_VIDEO_FRAME_COUNTS_H_ | 
 |  | 
 | #include <cstdint> | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | struct FrameCounts { | 
 |   FrameCounts() : key_frames(0), delta_frames(0) {} | 
 |   int key_frames; | 
 |   int delta_frames; | 
 | }; | 
 |  | 
 | // Callback, used to notify an observer whenever frame counts have been updated. | 
 | class FrameCountObserver { | 
 |  public: | 
 |   virtual ~FrameCountObserver() {} | 
 |   virtual void FrameCountUpdated(const FrameCounts& frame_counts, | 
 |                                  uint32_t ssrc) = 0; | 
 | }; | 
 |  | 
 | }  // namespace webrtc | 
 |  | 
 | #endif  // COMMON_VIDEO_FRAME_COUNTS_H_ |