Tweaked version of BBR for WebRTC.

webrtc/modules/bitrate_controller/bitrate_controller_impl.h

 /*
  *  Copyright (c) 2012 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.
  *
  *  Usage: this class will register multiple RtcpBitrateObserver's one at each
@@ skipping 54 matching lines @@
   void OnDelayBasedBweResult(const DelayBasedBwe::Result& result) override;
 
   int64_t TimeUntilNextProcess() override;
   void Process() override;
 
  private:
   class RtcpBandwidthObserverImpl;
 
   // Called by BitrateObserver's direct from the RTCP module.
   // Implements RtcpBandwidthObserver.
-  void OnReceivedEstimatedBitrate(uint32_t bitrate) override;
+  void OnReceivedEstimatedBitrate(uint32_t bitrate);
 
   void OnReceivedRtcpReceiverReport(const ReportBlockList& report_blocks,
                                     int64_t rtt,
-                                    int64_t now_ms) override;
+                                    int64_t now_ms);
 
   // Deprecated
   void MaybeTriggerOnNetworkChanged();
 
   void OnNetworkChanged(uint32_t bitrate,
                         uint8_t fraction_loss,  // 0 - 255.
                         int64_t rtt) EXCLUSIVE_LOCKS_REQUIRED(critsect_);
 
   // Used by process thread.
   const Clock* const clock_;
   BitrateObserver* const observer_;
   int64_t last_bitrate_update_ms_;
   RtcEventLog* const event_log_;
 
   rtc::CriticalSection critsect_;
   std::map<uint32_t, uint32_t> ssrc_to_last_received_extended_high_seq_num_
       GUARDED_BY(critsect_);
   SendSideBandwidthEstimation bandwidth_estimation_ GUARDED_BY(critsect_);
   uint32_t reserved_bitrate_bps_ GUARDED_BY(critsect_);
 
   uint32_t last_bitrate_bps_ GUARDED_BY(critsect_);
   uint8_t last_fraction_loss_ GUARDED_BY(critsect_);
   int64_t last_rtt_ms_ GUARDED_BY(critsect_);
   uint32_t last_reserved_bitrate_bps_ GUARDED_BY(critsect_);
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(BitrateControllerImpl);
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_BITRATE_CONTROLLER_BITRATE_CONTROLLER_IMPL_H_