Drop Wiener variance diff scale from 8 to 4

Change-Id: If6df62069c1b30de4d52aba33c20c6e854524905

diff --git a/vp9/encoder/vp9_segmentation.c b/vp9/encoder/vp9_segmentation.c
index 846ee3b..a163297 100644 (file)
--- a/vp9/encoder/vp9_segmentation.c
+++ b/vp9/encoder/vp9_segmentation.c
@@ -67,7 +67,7 @@ void vp9_perceptual_aq_mode_setup(struct VP9_COMP *cpi,
   const int base_qindex = cm->base_qindex;
   const double base_qstep = vp9_convert_qindex_to_q(base_qindex, cm->bit_depth);
   const double mid_ctr = cpi->kmeans_ctr_ls[seg_counts / 2];
-  const double var_diff_scale = 8.0;
+  const double var_diff_scale = 4.0;
   int i;
 
   assert(seg_counts <= MAX_SEGMENTS);