Added configurable offsets to the per-packet overhead in ANA.

webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc

Index: webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
index e2786ca8736d8f447d1ecfa9e7296ea5a1bc9cd1..6cdfc3b8a9d5bfe3dd80830f97b36e22c152fe08 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
@@ -125,6 +125,9 @@ void AudioNetworkAdaptorImpl::SetOverhead(size_t overhead_bytes_per_packet) {
 
 AudioEncoderRuntimeConfig AudioNetworkAdaptorImpl::GetEncoderRuntimeConfig() {
   AudioEncoderRuntimeConfig config;
+  if (prev_config_) {
+    config.last_fl_change_increase = prev_config_->last_fl_change_increase;

[alexnarest, 2017/09/14 07:53:42]

Sorry, missed this one yesterday. I do not think we need this logic here. FL
controller will update config and it is supposed to run before bitrate
controller.

[ivoc, 2017/09/14 09:59:44]

Good point, I moved this into the FL controller.

+  }
   for (auto& controller :
        controller_manager_->GetSortedControllers(last_metrics_))
     controller->MakeDecision(&config);