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

webrtc/modules/video_coding/video_sender.cc

 /*
  *  Copyright (c) 2013 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 319 matching lines @@
       !_encoder->SupportsNativeHandle()) {
     // This module only supports software encoding.
     // TODO(pbos): Offload conversion from the encoder thread.
     rtc::scoped_refptr<VideoFrameBuffer> converted_buffer(
         converted_frame.video_frame_buffer()->NativeToI420Buffer());
 
     if (!converted_buffer) {
       LOG(LS_ERROR) << "Frame conversion failed, dropping frame.";
       return VCM_PARAMETER_ERROR;
     }
-    converted_frame = VideoFrame(converted_buffer,
-                                 converted_frame.timestamp(),
-                                 converted_frame.render_time_ms(),
-                                 converted_frame.rotation());
+    converted_frame =
+        VideoFrame(converted_buffer, converted_frame.timestamp(),
+                   converted_frame.render_time_ms(), converted_frame.rotation(),
+                   converted_frame.content_type());
   }
   int32_t ret =
       _encoder->Encode(converted_frame, codecSpecificInfo, next_frame_types);
   if (ret < 0) {
     LOG(LS_ERROR) << "Failed to encode frame. Error code: " << ret;
     return ret;
   }
 
   {
     rtc::CritScope lock(&params_crit_);
@@ skipping 39 matching lines @@
 }
 
 int32_t VideoSender::EnableFrameDropper(bool enable) {
   rtc::CritScope lock(&encoder_crit_);
   frame_dropper_enabled_ = enable;
   _mediaOpt.EnableFrameDropper(enable);
   return VCM_OK;
 }
 }  // namespace vcm
 }  // namespace webrtc