Add new codec for FlexFEC.

webrtc/modules/video_coding/rtp_frame_reference_finder.cc

 /*
  *  Copyright (c) 2016 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 22 matching lines @@
     std::unique_ptr<RtpFrameObject> frame) {
   rtc::CritScope lock(&crit_);
 
   // If we have cleared past this frame, drop it.
   if (cleared_to_seq_num_ != -1 &&
       AheadOf<uint16_t>(cleared_to_seq_num_, frame->first_seq_num())) {
     return;
   }
 
   switch (frame->codec_type()) {
+    case kVideoCodecFlexfec:
     case kVideoCodecULPFEC:
     case kVideoCodecRED:
     case kVideoCodecUnknown:
       RTC_NOTREACHED();
       break;
     case kVideoCodecVP8:
       ManageFrameVp8(std::move(frame));
       break;
     case kVideoCodecVP9:
       ManageFrameVp9(std::move(frame));
@@ skipping 526 matching lines @@
   if (AheadOf<uint16_t, kPicIdLength>(picture_id, unwrap_truncated))
     last_unwrap_ = Add<1 << 16>(last_unwrap_, diff);
   else
     last_unwrap_ = Subtract<1 << 16>(last_unwrap_, diff);
 
   return last_unwrap_;
 }
 
 }  // namespace video_coding
 }  // namespace webrtc