Add content type information to encoded images and corresponding rtp extension header

webrtc/common_types.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 13 matching lines @@
     : hasTransmissionTimeOffset(false),
       transmissionTimeOffset(0),
       hasAbsoluteSendTime(false),
       absoluteSendTime(0),
       hasTransportSequenceNumber(false),
       transportSequenceNumber(0),
       hasAudioLevel(false),
       voiceActivity(false),
       audioLevel(0),
       hasVideoRotation(false),
-      videoRotation(kVideoRotation_0) {}
+      videoRotation(kVideoRotation_0),
+      hasVideoContentType(false),
+      videoContentType(VideoContentType::UNSPECIFIED) {}
 
 RTPHeader::RTPHeader()
     : markerBit(false),
       payloadType(0),
       sequenceNumber(0),
       timestamp(0),
       ssrc(0),
       numCSRCs(0),
       arrOfCSRCs(),
       paddingLength(0),
@@ skipping 133 matching lines @@
 // Get the sum of all the temporal layer for a specific spatial layer.
 uint32_t BitrateAllocation::GetSpatialLayerSum(size_t spatial_index) const {
   RTC_CHECK_LT(spatial_index, kMaxSpatialLayers);
   uint32_t sum = 0;
   for (int i = 0; i < kMaxTemporalStreams; ++i)
     sum += bitrates_[spatial_index][i];
   return sum;
 }
 
 }  // namespace webrtc