Set actual transport overhead in rtp_rtcp

webrtc/pc/srtpfilter.h

 /*
  *  Copyright 2009 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 93 matching lines @@
                   int64_t* index);
   bool ProtectRtcp(void* data, int in_len, int max_len, int* out_len);
   // Decrypts/verifies an invidiual RTP/RTCP packet.
   // If an HMAC is used, this will decrease the packet size.
   bool UnprotectRtp(void* data, int in_len, int* out_len);
   bool UnprotectRtcp(void* data, int in_len, int* out_len);
 
   // Returns rtp auth params from srtp context.
   bool GetRtpAuthParams(uint8_t** key, int* key_len, int* tag_len);
 
+  // Returns srtp overhead for rtp packets.
+  bool GetSrtpOverhead(int* srtp_overhead) const;
+
   // Update the silent threshold (in ms) for signaling errors.
   void set_signal_silent_time(int signal_silent_time_in_ms);
 
   bool ResetParams();
 
   sigslot::repeater3<uint32_t, Mode, Error> SignalSrtpError;
 
  protected:
   bool ExpectOffer(ContentSource source);
   bool StoreParams(const std::vector<CryptoParams>& params,
@@ skipping 70 matching lines @@
                   int64_t* index);
   bool ProtectRtcp(void* data, int in_len, int max_len, int* out_len);
   // Decrypts/verifies an invidiual RTP/RTCP packet.
   // If an HMAC is used, this will decrease the packet size.
   bool UnprotectRtp(void* data, int in_len, int* out_len);
   bool UnprotectRtcp(void* data, int in_len, int* out_len);
 
   // Helper method to get authentication params.
   bool GetRtpAuthParams(uint8_t** key, int* key_len, int* tag_len);
 
+  int GetSrtpOverhead() const;
+
   // Update the silent threshold (in ms) for signaling errors.
   void set_signal_silent_time(int signal_silent_time_in_ms);
 
   // Calls srtp_shutdown if it's initialized.
   static void Terminate();
 
   sigslot::repeater3<uint32_t, SrtpFilter::Mode, SrtpFilter::Error>
       SignalSrtpError;
 
  private:
@@ skipping 84 matching lines @@
   std::map<FailureKey, FailureStat> failures_;
   // Threshold in ms to silent the signaling errors.
   int signal_silent_time_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(SrtpStat);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_PC_SRTPFILTER_H_