Video/Screenshare loopback tool.

webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc

Index: webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc
diff --git a/webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc b/webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc
index b150734df19352bda5211ca759bed3724c704fb3..3e46655e18e6bbbea43f14358dfcfd04b2e5025d 100644
--- a/webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc
+++ b/webrtc/modules/congestion_controller/acknowledged_bitrate_estimator.cc
@@ -12,6 +12,7 @@
 
 #include <utility>
 
+#include "webrtc/logging/rtc_event_log/rtc_event_log.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 #include "webrtc/rtc_base/ptr_util.h"
 
@@ -23,8 +24,14 @@ bool IsInSendTimeHistory(const PacketFeedback& packet) {
 }
 }  // namespace
 
+AcknowledgedBitrateEstimator::AcknowledgedBitrateEstimator(
+    RtcEventLog* event_log)
+    : AcknowledgedBitrateEstimator(rtc::MakeUnique<BitrateEstimator>()) {
+  event_log_ = event_log;
+}
+
 AcknowledgedBitrateEstimator::AcknowledgedBitrateEstimator()
-    : AcknowledgedBitrateEstimator(rtc::MakeUnique<BitrateEstimator>()) {}
+    : AcknowledgedBitrateEstimator(nullptr) {}
 
 AcknowledgedBitrateEstimator::AcknowledgedBitrateEstimator(
     std::unique_ptr<BitrateEstimator> bitrate_estimator)
@@ -41,6 +48,9 @@ void AcknowledgedBitrateEstimator::IncomingPacketFeedbackVector(
       bitrate_estimator_->Update(packet.arrival_time_ms, packet.payload_size);
     }
   }
+  rtc::Optional<uint32_t> estimate = bitrate_estimator_->bitrate_bps();
+  if (event_log_)
+    event_log_->LogAckedBitrate(estimate ? *estimate : 0);
 }
 
 rtc::Optional<uint32_t> AcknowledgedBitrateEstimator::bitrate_bps() const {