Set actual transport overhead in rtp_rtcp

webrtc/p2p/base/transportchannel.h

 /*
  *  Copyright 2004 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 149 matching lines @@
   // is ready to send with this candidate pair.
   sigslot::signal4<TransportChannel*, CandidatePairInterface*, int, bool>
       SignalSelectedCandidatePairChanged;
 
   // Invoked when the channel is being destroyed.
   sigslot::signal1<TransportChannel*> SignalDestroyed;
 
   // Debugging description of this transport channel.
   std::string ToString() const;
 
+  // get selected candidate pair
+  // virtual CandidatePairInterface* selected_candidate_pair();

[honghaiz3, 2016/10/31 17:42:09]

You don't need this unless you want to choose the other option of implementing
this method in all subclasses. 

[michaelt, 2016/11/01 08:31:37]

Done.

+
  protected:
   // Sets the writable state, signaling if necessary.
   void set_writable(bool writable);
 
   // Sets the receiving state, signaling if necessary.
   void set_receiving(bool receiving);
 
   // Sets the DTLS state, signaling if necessary.
   void set_dtls_state(DtlsTransportState state);
 
  private:
   // Used mostly for debugging.
   std::string transport_name_;
   int component_;
   bool writable_;
   bool receiving_;
   DtlsTransportState dtls_state_ = DTLS_TRANSPORT_NEW;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(TransportChannel);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_TRANSPORTCHANNEL_H_