commit a73154a1d830be3326205b0325f5baf71374dca9
author Jingning Han <jingning@google.com> Thu Jan 30 17:01:33 2020 -0800
committer Jingning Han <jingning@google.com> Mon Feb 03 17:32:30 2020 +0000
tree 058ebb4fd6ee35b9fea7ab765bf2b70cf5525c21
parent 3cd9eec38f6981bced08d48410f88a1f58c55240

Reduce motion sampling points

It causes minor compression performance change, with ~2% less
instruction counts.

STATS_CHANGED

Change-Id: I80492fd65e2dbaaa265b2c503b5b8aa31d3bffe3

av1/encoder/mcomp.c

diff --git a/av1/encoder/mcomp.c b/av1/encoder/mcomp.c
index 031c7cd..b2b544a 100644
--- a/av1/encoder/mcomp.c
+++ b/av1/encoder/mcomp.c
@@ -187,7 +187,10 @@
     int tan_radius = AOMMAX((int)(0.41 * radius), 1);
     int num_search_pts = 12;
     if (radius == 1) num_search_pts = 8;
-
+    if (radius <= 5) {
+      tan_radius = radius;
+      num_search_pts = 8;
+    }
     const MV ss_mvs[13] = {
       { 0, 0 },
       { -radius, 0 },