Set actual transport overhead in rtp_rtcp

webrtc/video/video_send_stream.cc

Index: webrtc/video/video_send_stream.cc
diff --git a/webrtc/video/video_send_stream.cc b/webrtc/video/video_send_stream.cc
index cb6689e1179bdfb24e7543fd2797a0b4e3d5be41..291075756aa3334c567da7a5b64008bbcd59622b 100644
--- a/webrtc/video/video_send_stream.cc
+++ b/webrtc/video/video_send_stream.cc
@@ -274,6 +274,8 @@ class VideoSendStreamImpl : public webrtc::BitrateAllocatorObserver,
   void EnableEncodedFrameRecording(const std::vector<rtc::PlatformFile>& files,
                                    size_t byte_limit);
 
+  void SetTransportOverhead(int transport_overhead_per_packet_byte);
+
  private:
   class CheckEncoderActivityTask;
   class EncoderReconfiguredTask;
@@ -617,6 +619,15 @@ VideoSendStream::RtpStateMap VideoSendStream::StopPermanentlyAndGetRtpStates() {
   return state_map;
 }
 
+void VideoSendStream::SetTransportOverhead(
+    int transport_overhead_per_packet_byte) {
+  RTC_DCHECK_RUN_ON(&thread_checker_);
+  VideoSendStreamImpl* send_stream = send_stream_.get();
+  worker_queue_->PostTask([send_stream, transport_overhead_per_packet_byte] {
+    send_stream->SetTransportOverhead(transport_overhead_per_packet_byte);
+  });
+}
+
 bool VideoSendStream::DeliverRtcp(const uint8_t* packet, size_t length) {
   // Called on a network thread.
   return send_stream_->DeliverRtcp(packet, length);
@@ -1112,5 +1123,12 @@ int VideoSendStreamImpl::ProtectionRequest(
   return 0;
 }
 
+void VideoSendStreamImpl::SetTransportOverhead(
+    int transport_overhead_per_packet_byte) {
+  for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_) {
+    rtp_rtcp->SetTransportOverhead(transport_overhead_per_packet_byte);
+  }
+}
+
 }  // namespace internal
 }  // namespace webrtc