Revert of Delete Rtx-related methods from RTPPayloadRegistry.

webrtc/video/rtp_video_stream_receiver.cc

 /*
  *  Copyright (c) 2012 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 435 matching lines @@
     LOG(LS_WARNING) << "Removal of unknown sink.";
     return;
   }
   secondary_sinks_.erase(it);
 }
 
 void RtpVideoStreamReceiver::ReceivePacket(const uint8_t* packet,
                                            size_t packet_length,
                                            const RTPHeader& header,
                                            bool in_order) {
-  if (rtp_payload_registry_.IsRed(header)) {
+  if (rtp_payload_registry_.IsEncapsulated(header)) {
     ParseAndHandleEncapsulatingHeader(packet, packet_length, header);
     return;
   }
   const uint8_t* payload = packet + header.headerLength;
   assert(packet_length >= header.headerLength);
   size_t payload_length = packet_length - header.headerLength;
   PayloadUnion payload_specific;
   if (!rtp_payload_registry_.GetPayloadSpecifics(header.payloadType,
                                                  &payload_specific)) {
     return;
@@ skipping 11 matching lines @@
       rtp_receive_statistics_->FecPacketReceived(header, packet_length);
       // Notify video_receiver about received FEC packets to avoid NACKing these
       // packets.
       NotifyReceiverOfFecPacket(header);
     }
     if (ulpfec_receiver_->AddReceivedRedPacket(header, packet, packet_length,
                                                ulpfec_pt) != 0) {
       return;
     }
     ulpfec_receiver_->ProcessReceivedFec();
+  } else if (rtp_payload_registry_.IsRtx(header)) {
+    LOG(LS_WARNING) << "Unexpected RTX packet on media ssrc";
   }
 }
 
 void RtpVideoStreamReceiver::NotifyReceiverOfFecPacket(
     const RTPHeader& header) {
   int8_t last_media_payload_type =
       rtp_payload_registry_.last_received_media_payload_type();
   if (last_media_payload_type < 0) {
     LOG(LS_WARNING) << "Failed to get last media payload type.";
     return;
@@ skipping 175 matching lines @@
     return;
 
   if (!sprop_decoder.DecodeSprop(sprop_base64_it->second.c_str()))
     return;
 
   tracker_.InsertSpsPpsNalus(sprop_decoder.sps_nalu(),
                              sprop_decoder.pps_nalu());
 }
 
 }  // namespace webrtc