commit 2bbeba2ea8afec30183588f618699ad16dd639d2
author Jingning Han <jingning@google.com> Fri Nov 13 11:40:37 2020 -0800
committer Jingning Han <jingning@google.com> Sat Nov 14 00:13:11 2020 -0800
tree 8c3653beffd5e093b4948bcd7fddffdb8d2c4be9
parent d198b8e9fbbc4100cf90c46dc2c5448469b4f4d9

Reduce motion search range temporarily

Use reduced motion search range for the expensive wedge motion
search. It brings back ~20% encoding speed. The compression loss
is 0.088% for lowres and 0.1% for midres2.

STATS_CHANGED

Change-Id: I38225d29333c3411446cea59af6c84f19298b8c1

av1/encoder/motion_search_facade.c

diff --git a/av1/encoder/motion_search_facade.c b/av1/encoder/motion_search_facade.c
index 9834b19..42019ef 100644
--- a/av1/encoder/motion_search_facade.c
+++ b/av1/encoder/motion_search_facade.c
@@ -451,8 +451,13 @@
     const FULLPEL_MV start_fullmv = get_fullmv_from_mv(&cur_mv[id].as_mv);
 
     // Small-range full-pixel motion search.
-    bestsme = av1_full_pixel_search(start_fullmv, &full_ms_params, 5, NULL,
-                                    &best_mv.as_fullmv, NULL);
+    if (mbmi->interinter_comp.type != COMPOUND_WEDGE) {
+      bestsme = av1_full_pixel_search(start_fullmv, &full_ms_params, 5, NULL,
+                                      &best_mv.as_fullmv, NULL);
+    } else {
+      bestsme = av1_refining_search_8p_c(&full_ms_params, start_fullmv,
+                                         &best_mv.as_fullmv);
+    }
 
     // Restore the pointer to the first (possibly scaled) prediction buffer.
     if (id) xd->plane[plane].pre[0] = ref_yv12[0];