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

webrtc/modules/video_coding/codecs/i420/i420.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 193 matching lines @@
       I420Buffer::Create(_width, _height, _width, half_width, half_width);
 
   // Converting from raw buffer I420Buffer.
   int ret = ConvertToI420(kI420, buffer, 0, 0, _width, _height, 0,
                           kVideoRotation_0, frame_buffer.get());
   if (ret < 0) {
     return WEBRTC_VIDEO_CODEC_MEMORY;
   }
 
   VideoFrame decoded_image(frame_buffer, inputImage._timeStamp, 0,
-                           webrtc::kVideoRotation_0);
+                           webrtc::kVideoRotation_0,
+                           webrtc::VideoContentType::kDefault);
   _decodeCompleteCallback->Decoded(decoded_image);
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 const uint8_t* I420Decoder::ExtractHeader(const uint8_t* buffer,
                                           uint16_t* width,
                                           uint16_t* height) {
   *width = static_cast<uint16_t>(*buffer++) << 8;
   *width |= *buffer++;
   *height = static_cast<uint16_t>(*buffer++) << 8;
   *height |= *buffer++;
 
   return buffer;
 }
 
 int I420Decoder::RegisterDecodeCompleteCallback(
     DecodedImageCallback* callback) {
   _decodeCompleteCallback = callback;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Decoder::Release() {
   _inited = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 }  // namespace webrtc