In bwe test Collect receive statistic using GetReportBlocks collector

webrtc/modules/remote_bitrate_estimator/test/estimators/remb.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
@@ skipping 92 matching lines @@
 
   // Log received packet information.
   BweReceiver::ReceivePacket(arrival_time_ms, media_packet);
 }
 
 FeedbackPacket* RembReceiver::GetFeedback(int64_t now_ms) {
   BWE_TEST_LOGGING_CONTEXT("Remb");
   uint32_t estimated_bps = 0;
   RembFeedback* feedback = NULL;
   if (LatestEstimate(&estimated_bps)) {
-    StatisticianMap statisticians = recv_stats_->GetActiveStatisticians();
-    RTCPReportBlock report_block;
-    if (!statisticians.empty()) {
-      latest_report_block_ = BuildReportBlock(statisticians.begin()->second);
+    auto report_blocks = recv_stats_->RtcpReportBlocks(1);
+    if (!report_blocks.empty()) {
+      const rtcp::ReportBlock& stat = report_blocks.front();
+      latest_report_block_.fraction_lost = stat.fraction_lost();
+      latest_report_block_.packets_lost = stat.cumulative_lost();
+      latest_report_block_.extended_highest_sequence_number =
+          stat.extended_high_seq_num();
+      latest_report_block_.jitter = stat.jitter();
     }
 
     feedback = new RembFeedback(flow_id_, now_ms * 1000, last_feedback_ms_,
                                 estimated_bps, latest_report_block_);
     last_feedback_ms_ = now_ms;
 
     double estimated_kbps = static_cast<double>(estimated_bps) / 1000.0;
     RTC_UNUSED(estimated_kbps);
     if (plot_estimate_) {
       BWE_TEST_LOGGING_PLOT(0, estimate_log_prefix_,
                             clock_.TimeInMilliseconds(), estimated_kbps);
     }
   }
   return feedback;
 }
 
 void RembReceiver::OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs,
                                            uint32_t bitrate) {}
 
-RTCPReportBlock RembReceiver::BuildReportBlock(
-    StreamStatistician* statistician) {
-  RTCPReportBlock report_block;
-  RtcpStatistics stats;
-  RTC_DCHECK(statistician->GetStatistics(&stats, true));
-  report_block.fraction_lost = stats.fraction_lost;
-  report_block.packets_lost = stats.packets_lost;
-  report_block.extended_highest_sequence_number =
-      stats.extended_highest_sequence_number;
-  report_block.jitter = stats.jitter;
-  return report_block;
-}
-
 bool RembReceiver::LatestEstimate(uint32_t* estimate_bps) {
   if (latest_estimate_bps_ < 0) {
     std::vector<uint32_t> ssrcs;
     uint32_t bps = 0;
     if (!estimator_->LatestEstimate(&ssrcs, &bps)) {
       return false;
     }
     latest_estimate_bps_ = bps;
   }
   *estimate_bps = latest_estimate_bps_;
   return true;
 }
 
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc