FecControler disables FEC when *below* threshold

webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc

Index: webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc b/webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc
index d9b259b3507c352669a3e1239a0077e7b94c0b5c..481f78d7cdd26ac3aa14a6875e084a7b5e65d1e9 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/fec_controller_plr_based.cc
@@ -107,8 +107,8 @@ bool FecControllerPlrBased::FecDisablingDecision(
   if (!uplink_bandwidth_bps_ || !packet_loss) {
     return false;
   } else {
-    // Disable when below the curve or exactly on it.
-    return !config_.fec_disabling_threshold.IsAboveCurve(
+    // Disable when below the curve.
+    return config_.fec_disabling_threshold.IsBelowCurve(
         {static_cast<float>(*uplink_bandwidth_bps_), *packet_loss});
   }
 }