Remove rtcp::TransportFeedback::GetStatusVector/GetReceiveDeltas

webrtc/modules/congestion_controller/transport_feedback_adapter.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 104 matching lines @@
     if (std::abs(delta - kBaseTimestampRangeSizeUs) < std::abs(delta)) {
       delta -= kBaseTimestampRangeSizeUs;  // Wrap backwards.
     } else if (std::abs(delta + kBaseTimestampRangeSizeUs) < std::abs(delta)) {
       delta += kBaseTimestampRangeSizeUs;  // Wrap forwards.
     }
 
     current_offset_ms_ += delta / 1000;
   }
   last_timestamp_us_ = timestamp_us;
 
-  auto received_packets = feedback.GetReceivedPackets();
   std::vector<PacketFeedback> packet_feedback_vector;
-  if (received_packets.empty()) {
+  if (feedback.GetPacketStatusCount() == 0) {
     LOG(LS_INFO) << "Empty transport feedback packet received.";
     return packet_feedback_vector;
   }
-  const uint16_t last_sequence_number =
-      received_packets.back().sequence_number();
-  const size_t packet_count =
-      1 + ForwardDiff(feedback.GetBaseSequence(), last_sequence_number);
-  packet_feedback_vector.reserve(packet_count);
-  // feedback.GetStatusVector().size() is a less efficient way to reach what
-  // should be the same value.
-  RTC_DCHECK_EQ(packet_count, feedback.GetStatusVector().size());
+  packet_feedback_vector.reserve(feedback.GetPacketStatusCount());
 
   {
     rtc::CritScope cs(&lock_);
     size_t failed_lookups = 0;
     int64_t offset_us = 0;
     int64_t timestamp_ms = 0;
     uint16_t seq_num = feedback.GetBaseSequence();
-    for (const auto& packet : received_packets) {
+    for (const auto& packet : feedback.GetReceivedPackets()) {
       // Insert into the vector those unreceived packets which precede this
       // iteration's received packet.
       for (; seq_num != packet.sequence_number(); ++seq_num) {
         PacketFeedback packet_feedback(PacketFeedback::kNotReceived, seq_num);
         // Note: Element not removed from history because it might be reported
         // as received by another feedback.
         if (!send_time_history_.GetFeedback(&packet_feedback, false))
           ++failed_lookups;
         if (packet_feedback.local_net_id == local_net_id_ &&
             packet_feedback.remote_net_id == remote_net_id_) {
@@ skipping 33 matching lines @@
       observer->OnPacketFeedbackVector(last_packet_feedback_vector_);
     }
   }
 }
 
 std::vector<PacketFeedback>
 TransportFeedbackAdapter::GetTransportFeedbackVector() const {
   return last_packet_feedback_vector_;
 }
 }  // namespace webrtc