Set actual transport overhead in rtp_rtcp

webrtc/pc/srtpfilter.cc

 /*
  *  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 207 matching lines @@
 bool SrtpFilter::GetRtpAuthParams(uint8_t** key, int* key_len, int* tag_len) {
   if (!IsActive()) {
     LOG(LS_WARNING) << "Failed to GetRtpAuthParams: SRTP not active";
     return false;
   }
 
   RTC_CHECK(send_session_);
   return send_session_->GetRtpAuthParams(key, key_len, tag_len);
 }
 
+bool SrtpFilter::GetSrtpOverhead(int* srtp_overhead) const {
+  if (!IsActive()) {
+    LOG(LS_WARNING) << "Failed to GetSrtpOverhead: SRTP not active";
+    return false;
+  }
+
+  RTC_CHECK(send_session_);
+  *srtp_overhead = send_session_->GetSrtpOverhead();
+  return true;
+}
+
 void SrtpFilter::set_signal_silent_time(int signal_silent_time_in_ms) {
   signal_silent_time_in_ms_ = signal_silent_time_in_ms;
   if (IsActive()) {
     RTC_CHECK(send_session_);
     send_session_->set_signal_silent_time(signal_silent_time_in_ms);
     RTC_CHECK(recv_session_);
     recv_session_->set_signal_silent_time(signal_silent_time_in_ms);
     if (send_rtcp_session_)
       send_rtcp_session_->set_signal_silent_time(signal_silent_time_in_ms);
     if (recv_rtcp_session_)
@@ skipping 371 matching lines @@
 
   *key = external_hmac->key;
   *key_len = external_hmac->key_length;
   *tag_len = rtp_auth_tag_len_;
   return true;
 #else
   return false;
 #endif
 }
 
+int SrtpSession::GetSrtpOverhead() const {
+  return rtp_auth_tag_len_;
+}
+
 bool SrtpSession::GetSendStreamPacketIndex(void* p,
                                            int in_len,
                                            int64_t* index) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   srtp_hdr_t* hdr = reinterpret_cast<srtp_hdr_t*>(p);
   srtp_stream_ctx_t* stream = srtp_get_stream(session_, hdr->ssrc);
   if (!stream) {
     return false;
   }
 
@@ skipping 304 matching lines @@
   SrtpNotAvailable(__FUNCTION__);
 }
 
 void SrtpStat::HandleSrtpResult(const SrtpStat::FailureKey& key) {
   SrtpNotAvailable(__FUNCTION__);
 }
 
 #endif  // HAVE_SRTP
 
 }  // namespace cricket