shithub: libvpx

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Changed to use real pixels only for evaluating MVs

The commit changed to avoid using pixels from extended border in
in evaluating and select best reference motion vector.

Change-Id: I39b758889373e42ed2889d59744388e5b9c1a20a

--- a/vp8/common/findnearmv.c

+++ b/vp8/common/findnearmv.c

@@ -217,7 +217,7 @@

   unsigned char *above_ref;

   unsigned char *left_ref;

   int sad;

-  int sad_scores[MAX_MV_REFS];

+  int sad_scores[MAX_MV_REFS] = {0};

   int_mv sorted_mvs[MAX_MV_REFS];

   int zero_seen = FALSE;

@@ -259,12 +259,13 @@

       ((this_mv.as_mv.col + 3) >> 3):((this_mv.as_mv.col + 4) >> 3);

     offset = ref_y_stride * row_offset + col_offset;

-    sad = vp8_sad16x3_c(above_src, xd->dst.y_stride,

-                        above_ref + offset, ref_y_stride, INT_MAX);

-

-    sad += vp8_sad3x16_c(left_src, xd->dst.y_stride,

-                         left_ref + offset, ref_y_stride, INT_MAX);

-

+    sad = 0;

+    if (xd->up_available)

+      sad += vp8_sad16x3_c(above_src, xd->dst.y_stride,

+                           above_ref + offset, ref_y_stride, INT_MAX);

+    if (xd->left_available)

+      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.

     sad_scores[i] = sad;

     sorted_mvs[i].as_int = this_mv.as_int;

-- 

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