ref: 3c038b6c407eb383e3c4fdd9229cc89257d46222
parent: 34d6077c9303ac4530d5d28edb39a354592d72c7
author: James Zern <[email protected]>
date: Wed Oct 23 17:33:11 EDT 2013
vp9/extend_for_intra: avoid crossing tile boundary Change-Id: I0d8a71778aa3c73b8b1673e14053074bb866548b
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -439,16 +439,19 @@
}
if (xd->mb_to_bottom_edge < 0) {- const int bh = 4 << b_height_log2(plane_bsize);
- const int umv_border_start = bh + (xd->mb_to_bottom_edge >>
- (3 + pd->subsampling_y));
- int i;
- const uint8_t c = buf[(umv_border_start - 1) * stride + x];
- uint8_t *d = &buf[umv_border_start * stride + x];
+ if (xd->left_available || x >= 0) {+ const int bh = 4 << b_height_log2(plane_bsize);
+ const int umv_border_start =
+ bh + (xd->mb_to_bottom_edge >> (3 + pd->subsampling_y));
- if (y + bh > umv_border_start)
- for (i = 0; i < bh; ++i, d += stride)
- *d = c;
+ if (y + bh > umv_border_start) {+ const uint8_t c = buf[(umv_border_start - 1) * stride + x];
+ uint8_t *d = &buf[umv_border_start * stride + x];
+ int i;
+ for (i = 0; i < bh; ++i, d += stride)
+ *d = c;
+ }
+ }
}
}
static void set_contexts_on_border(MACROBLOCKD *xd,