From 6d8538e508af89b2704181bdbb8a823743c814ad Mon Sep 17 00:00:00 2001 From: Yaowu Xu Date: Fri, 14 Sep 2012 08:58:02 -0700 Subject: Use 3 rows and cols of pixels for ref_mv scoring The commit changed to use 3 rows above and 3 cols from left for SAD scoring for selecting the best reference motion vector. The change helped std-hd set by >.2% on psnr/ssim metrics. Change-Id: Ifad3b528d0b4b6e3c22518af789d76eff23c1520 --- vp8/common/findnearmv.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'vp8/common/findnearmv.c') diff --git a/vp8/common/findnearmv.c b/vp8/common/findnearmv.c index 43eb6bf4d..235ca46ce 100644 --- a/vp8/common/findnearmv.c +++ b/vp8/common/findnearmv.c @@ -225,10 +225,10 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd, best_mv->as_int = nearest->as_int = near->as_int = 0; vpx_memset(sorted_mvs, 0, sizeof(sorted_mvs)); - above_src = xd->dst.y_buffer - xd->dst.y_stride * 2; - left_src = xd->dst.y_buffer - 2; - above_ref = ref_y_buffer - ref_y_stride * 2; - left_ref = ref_y_buffer - 2; + above_src = xd->dst.y_buffer - xd->dst.y_stride * 3; + left_src = xd->dst.y_buffer - 3; + above_ref = ref_y_buffer - ref_y_stride * 3; + left_ref = ref_y_buffer - 3; //for(i = 0; i < MAX_MV_REFS; ++i) { // Limit search to the predicted best 4 @@ -259,10 +259,10 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd, ((this_mv.as_mv.col + 3) >> 3):((this_mv.as_mv.col + 4) >> 3); offset = ref_y_stride * row_offset + col_offset; - sad = vp8_sad16x2_c(above_src, xd->dst.y_stride, + sad = vp8_sad16x3_c(above_src, xd->dst.y_stride, above_ref + offset, ref_y_stride, INT_MAX); - sad += vp8_sad2x16_c(left_src, xd->dst.y_stride, + sad += vp8_sad3x16_c(left_src, xd->dst.y_stride, left_ref + offset, ref_y_stride, INT_MAX); // Add the entry to our list and then resort the list on score. @@ -281,7 +281,6 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd, } } - // Set the best mv to the first entry in the sorted list best_mv->as_int = sorted_mvs[0].as_int; -- cgit v1.2.3