[rtp_rtcp] ReportBlockInformation cleaned and moved out of the rtcp_receiver_help.

webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc

Index: webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
index 0259b73ff4e12fd666fda20d4b986df85d9d22bd..bd57c8fb5de39c7d3806f5fdeda100a5210c09c7 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
@@ -25,9 +25,9 @@
 #include "webrtc/system_wrappers/include/ntp_time.h"
 
 namespace webrtc {
+using rtcp::ReportBlockInformation;
 using RTCPHelp::RTCPPacketInformation;
 using RTCPHelp::RTCPReceiveInformation;
-using RTCPHelp::RTCPReportBlockInformation;
 using RTCPUtility::kBtVoipMetric;
 using RTCPUtility::RTCPCnameInformation;
 using RTCPUtility::RTCPPacketReportBlockItem;
@@ -170,23 +170,23 @@ int32_t RTCPReceiver::RTT(uint32_t remoteSSRC,
                           int64_t* maxRTT) const {
   CriticalSectionScoped lock(_criticalSectionRTCPReceiver);
 
-  RTCPReportBlockInformation* reportBlock =
+  const ReportBlockInformation* report_block =
       GetReportBlockInformation(remoteSSRC, main_ssrc_);
 
-  if (reportBlock == NULL) {
+  if (!report_block || !report_block->HasRtt()) {
     return -1;
   }
   if (RTT) {
-    *RTT = reportBlock->RTT;
+    *RTT = report_block->LastRttMs();
   }
   if (avgRTT) {
-    *avgRTT = reportBlock->avgRTT;
+    *avgRTT = report_block->AvgRttMs();
   }
   if (minRTT) {
-    *minRTT = reportBlock->minRTT;
+    *minRTT = report_block->MinRttMs();
   }
   if (maxRTT) {
-    *maxRTT = reportBlock->maxRTT;
+    *maxRTT = report_block->MaxRttMs();
   }
   return 0;
 }
@@ -277,7 +277,7 @@ int32_t RTCPReceiver::StatisticsReceived(
     const ReportBlockInfoMap* info_map = &(it->second);
     ReportBlockInfoMap::const_iterator it_info = info_map->begin();
     for (; it_info != info_map->end(); ++it_info) {
-      receiveBlocks->push_back(it_info->second->remoteReceiveBlock);
+      receiveBlocks->push_back(it_info->second->LastBlock());
     }
   }
   return 0;
@@ -488,9 +488,9 @@ void RTCPReceiver::HandleReportBlock(
     return;
   }
 
-  RTCPReportBlockInformation* reportBlock =
-      CreateOrGetReportBlockInformation(remoteSSRC,
-                                        rtcpPacket.ReportBlockItem.SSRC);
+  ReportBlockInformation* reportBlock = CreateOrGetReportBlockInformation(
+      remoteSSRC, rtcpPacket.ReportBlockItem.SSRC);
+
   if (reportBlock == NULL) {
     LOG(LS_WARNING) << "Failed to CreateReportBlockInformation("
                     << remoteSSRC << ")";
@@ -499,86 +499,30 @@ void RTCPReceiver::HandleReportBlock(
 
   _lastReceivedRrMs = _clock->TimeInMilliseconds();
   const RTCPPacketReportBlockItem& rb = rtcpPacket.ReportBlockItem;
-  reportBlock->remoteReceiveBlock.remoteSSRC = remoteSSRC;
-  reportBlock->remoteReceiveBlock.sourceSSRC = rb.SSRC;
-  reportBlock->remoteReceiveBlock.fractionLost = rb.FractionLost;
-  reportBlock->remoteReceiveBlock.cumulativeLost =
-      rb.CumulativeNumOfPacketsLost;
   if (rb.ExtendedHighestSequenceNumber >
-      reportBlock->remoteReceiveBlock.extendedHighSeqNum) {
+      reportBlock->LastBlock().extendedHighSeqNum) {
     // We have successfully delivered new RTP packets to the remote side after
     // the last RR was sent from the remote side.
     _lastIncreasedSequenceNumberMs = _lastReceivedRrMs;
   }
-  reportBlock->remoteReceiveBlock.extendedHighSeqNum =
-      rb.ExtendedHighestSequenceNumber;
-  reportBlock->remoteReceiveBlock.jitter = rb.Jitter;
-  reportBlock->remoteReceiveBlock.delaySinceLastSR = rb.DelayLastSR;
-  reportBlock->remoteReceiveBlock.lastSR = rb.LastSR;
-
-  if (rtcpPacket.ReportBlockItem.Jitter > reportBlock->remoteMaxJitter) {
-    reportBlock->remoteMaxJitter = rtcpPacket.ReportBlockItem.Jitter;
-  }
-
-  uint32_t send_time = rtcpPacket.ReportBlockItem.LastSR;
-  uint32_t rtt = 0;
-
-  if (send_time > 0) {
-    uint32_t delay = rtcpPacket.ReportBlockItem.DelayLastSR;
-    // Local NTP time.
-    uint32_t receive_time = CompactNtp(NtpTime(*_clock));
-
-    // RTT in 1/(2^16) seconds.
-    uint32_t rtt_ntp = receive_time - delay - send_time;
-    // Convert to 1/1000 seconds (milliseconds).
-    uint32_t rtt_ms = CompactNtpIntervalToMs(rtt_ntp);
-    rtt = std::max<uint32_t>(rtt_ms, 1);
-    if (rtt > reportBlock->maxRTT) {
-      // Store max RTT.
-      reportBlock->maxRTT = rtt;
-    }
-    if (reportBlock->minRTT == 0) {
-      // First RTT.
-      reportBlock->minRTT = rtt;
-    } else if (rtt < reportBlock->minRTT) {
-      // Store min RTT.
-      reportBlock->minRTT = rtt;
-    }
-    // Store last RTT.
-    reportBlock->RTT = rtt;
-
-    // store average RTT
-    if (reportBlock->numAverageCalcs != 0) {
-      float ac = static_cast<float>(reportBlock->numAverageCalcs);
-      float newAverage =
-          ((ac / (ac + 1)) * reportBlock->avgRTT) + ((1 / (ac + 1)) * rtt);
-      reportBlock->avgRTT = static_cast<int64_t>(newAverage + 0.5f);
-    } else {
-      // First RTT.
-      reportBlock->avgRTT = rtt;
-    }
-    reportBlock->numAverageCalcs++;
-  }
 
-  TRACE_COUNTER_ID1(TRACE_DISABLED_BY_DEFAULT("webrtc_rtp"), "RR_RTT", rb.SSRC,
-                    rtt);
+  reportBlock->AddBlock(rb, remoteSSRC, NtpTime(*_clock));
 
   rtcpPacketInformation.AddReportInfo(*reportBlock);
 }
 
-RTCPReportBlockInformation* RTCPReceiver::CreateOrGetReportBlockInformation(
+ReportBlockInformation* RTCPReceiver::CreateOrGetReportBlockInformation(
     uint32_t remote_ssrc,
     uint32_t source_ssrc) {
-  RTCPReportBlockInformation* info =
-      GetReportBlockInformation(remote_ssrc, source_ssrc);
-  if (info == NULL) {
-    info = new RTCPReportBlockInformation;
-    _receivedReportBlockMap[source_ssrc][remote_ssrc] = info;
+  ReportBlockInformation** info =
+      &_receivedReportBlockMap[source_ssrc][remote_ssrc];
+  if (!*info) {
+    *info = new ReportBlockInformation;
   }
-  return info;
+  return *info;
 }
 
-RTCPReportBlockInformation* RTCPReceiver::GetReportBlockInformation(
+const ReportBlockInformation* RTCPReceiver::GetReportBlockInformation(
     uint32_t remote_ssrc,
     uint32_t source_ssrc) const {
   ReportBlockMap::const_iterator it = _receivedReportBlockMap.find(source_ssrc);