diff --git a/av1/encoder/speed_features.h b/av1/encoder/speed_features.h
index 4867c37..6d82381 100644
--- a/av1/encoder/speed_features.h
+++ b/av1/encoder/speed_features.h
@@ -279,6 +279,12 @@
 } GM_SEARCH_TYPE;
 
 typedef enum {
+  GM_ERRORADV_TR_0,
+  GM_ERRORADV_TR_1,
+  GM_ERRORADV_TR_2,
+} GM_ERRORADV_TYPE;
+
+typedef enum {
   NO_TRELLIS_OPT,         // No trellis optimization
   FULL_TRELLIS_OPT,       // Trellis optimization in all stages
   FINAL_PASS_TRELLIS_OPT  // Trellis optimization in only the final encode pass
@@ -300,6 +306,9 @@
   // Trellis (dynamic programming) optimization of quantized values
   TRELLIS_OPT_TYPE optimize_coefficients;
 
+  // Global motion warp error threshold
+  GM_ERRORADV_TYPE gm_erroradv_type;
+
   // Always set to 0. If on it enables 0 cost background transmission
   // (except for the initial transmission of the segmentation). The feature is
   // disabled because the addition of very large block sizes make the