Refactor rtcp statistics: Rtcp module take narrow interface

webrtc/modules/rtp_rtcp/source/receive_statistics_impl.cc

 /*
  *  Copyright (c) 2013 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.
  */
 
 #include "webrtc/modules/rtp_rtcp/source/receive_statistics_impl.h"
 
 #include <math.h>
 
 #include <cstdlib>
+#include <vector>
 
 #include "webrtc/modules/remote_bitrate_estimator/test/bwe_test_logging.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_rtcp_config.h"
 #include "webrtc/modules/rtp_rtcp/source/time_util.h"
+#include "webrtc/rtc_base/logging.h"
 #include "webrtc/system_wrappers/include/clock.h"
 
 namespace webrtc {
 
 const int64_t kStatisticsTimeoutMs = 8000;
 const int64_t kStatisticsProcessIntervalMs = 1000;
 
 StreamStatistician::~StreamStatistician() {}
 
 StreamStatisticianImpl::StreamStatisticianImpl(
@@ skipping 455 matching lines @@
 }
 
 void ReceiveStatisticsImpl::DataCountersUpdated(const StreamDataCounters& stats,
                                                 uint32_t ssrc) {
   rtc::CritScope cs(&receive_statistics_lock_);
   if (rtp_stats_callback_) {
     rtp_stats_callback_->DataCountersUpdated(stats, ssrc);
   }
 }
 
+std::vector<rtcp::ReportBlock> ReceiveStatistics::GetActiveStatistics() {
+  std::vector<rtcp::ReportBlock> result;
+  for (auto& statistician : GetActiveStatisticians()) {
+    rtcp::ReportBlock block;
+    block.SetMediaSsrc(statistician.first);
+    RtcpStatistics stats;
+    if (!statistician.second->GetStatistics(&stats, true))
+      continue;
+    block.SetFractionLost(stats.fraction_lost);
+    if (!block.SetCumulativeLost(stats.cumulative_lost)) {
+      LOG(LS_WARNING) << "Cumulative lost is oversized.";
+      continue;
+    }
+    block.SetExtHighestSeqNum(stats.extended_max_sequence_number);
+    block.SetJitter(stats.jitter);
+    result.push_back(block);
+  }
+  return result;
+}
+
 void NullReceiveStatistics::IncomingPacket(const RTPHeader& rtp_header,
                                            size_t packet_length,
                                            bool retransmitted) {}
 
 void NullReceiveStatistics::FecPacketReceived(const RTPHeader& header,
                                               size_t packet_length) {}
 
 StatisticianMap NullReceiveStatistics::GetActiveStatisticians() const {
   return StatisticianMap();
 }
 
 StreamStatistician* NullReceiveStatistics::GetStatistician(
     uint32_t ssrc) const {
   return NULL;
 }
 
 void NullReceiveStatistics::SetMaxReorderingThreshold(
     int max_reordering_threshold) {}
 
 void NullReceiveStatistics::RegisterRtcpStatisticsCallback(
     RtcpStatisticsCallback* callback) {}
 
 void NullReceiveStatistics::RegisterRtpStatisticsCallback(
     StreamDataCountersCallback* callback) {}
 
 }  // namespace webrtc