From a3d22aa2a4e9946f5dd5e0e77c351511fb5d97ec Mon Sep 17 00:00:00 2001 From: Yunqing Wang Date: Tue, 4 Aug 2015 12:06:21 -0700 Subject: [PATCH] Small improvement in sub-pixel motion search If the current best mv(namely, the search center) is still the best mv after the first level search, the second level checks is skipped. This patch doesn't change the bitstream. At speed 0, it speeds up the encoder by 1% - 2%. Change-Id: I054c91b884d3f7aef157436c061744562bd6506d --- vp9/encoder/vp9_mcomp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vp9/encoder/vp9_mcomp.c b/vp9/encoder/vp9_mcomp.c index 081b99f9f..6e0c561c3 100644 --- a/vp9/encoder/vp9_mcomp.c +++ b/vp9/encoder/vp9_mcomp.c @@ -735,7 +735,7 @@ int vp9_find_best_sub_pixel_tree(const MACROBLOCK *x, bc = tc; } - if (iters_per_step > 1) + if (iters_per_step > 1 && best_idx != -1) SECOND_LEVEL_CHECKS; tr = br; -- 2.40.0