| /* |
| * Copyright 2018 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 MODULES_CONGESTION_CONTROLLER_BBR_LOSS_RATE_FILTER_H_ |
| #define MODULES_CONGESTION_CONTROLLER_BBR_LOSS_RATE_FILTER_H_ |
| |
| #include "absl/types/optional.h" |
| |
| namespace webrtc { |
| namespace bbr { |
| |
| // Loss rate filter based on the implementation in SendSideBandwidthEstimation |
| // and the RTCPSender receiver report interval for video. |
| class LossRateFilter { |
| public: |
| LossRateFilter(); |
| void UpdateWithLossStatus(int64_t feedback_time_ms, |
| int packets_sent, |
| int packets_lost); |
| double GetLossRate() const; |
| |
| private: |
| int lost_packets_since_last_loss_update_; |
| int expected_packets_since_last_loss_update_; |
| double loss_rate_estimate_; |
| int64_t next_loss_update_ms_; |
| }; |
| |
| } // namespace bbr |
| } // namespace webrtc |
| |
| #endif // MODULES_CONGESTION_CONTROLLER_BBR_LOSS_RATE_FILTER_H_ |