Explicitly use RTX for RED in VideoQualityTest and video_loopback.

webrtc/video/video_quality_test.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.
  */
 #include "webrtc/video/video_quality_test.h"
@@ skipping 1335 matching lines @@
     video_receive_configs_[stream_id].renderer = loopback_video.get();
     if (params_.audio.enabled && params_.audio.sync_video)
       video_receive_configs_[stream_id].sync_group = kSyncGroup;
 
     video_send_config_.suspend_below_min_bitrate =
         params_.video.suspend_below_min_bitrate;
 
     if (params.video.fec) {
       video_send_config_.rtp.ulpfec.red_payload_type = kRedPayloadType;
       video_send_config_.rtp.ulpfec.ulpfec_payload_type = kUlpfecPayloadType;
+      video_send_config_.rtp.ulpfec.red_rtx_payload_type = kRtxRedPayloadType;
       video_receive_configs_[stream_id].rtp.ulpfec.red_payload_type =
           kRedPayloadType;
       video_receive_configs_[stream_id].rtp.ulpfec.ulpfec_payload_type =
           kUlpfecPayloadType;
+      video_receive_configs_[stream_id].rtp.ulpfec.red_rtx_payload_type =
+          kRtxRedPayloadType;
     }
 
     if (params_.screenshare.enabled)
       SetupScreenshare();
 
     video_send_stream_ = call->CreateVideoSendStream(
         video_send_config_.Copy(), video_encoder_config_.Copy());
     video_receive_stream = call->CreateVideoReceiveStream(
         video_receive_configs_[stream_id].Copy());
     CreateCapturer();
@@ skipping 75 matching lines @@
     std::ostringstream str;
     str << receive_logs_++;
     std::string path =
         params_.video.encoded_frame_base_path + "." + str.str() + ".recv.ivf";
     stream->EnableEncodedFrameRecording(rtc::CreatePlatformFile(path),
                                         10000000);
   }
 }
 
 }  // namespace webrtc