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Enforce motion search range clamp for sub8x8
author
Jingning Han
<jingning@google.com>
Wed, 11 Dec 2013 18:57:15 +0000
(10:57 -0800)
committer
Jingning Han
<jingning@google.com>
Wed, 11 Dec 2013 18:59:27 +0000
(10:59 -0800)
This commit constrains the maximal motion search range for sub8x8
blocks to be [-1023, 1023], in the unit of full pixel.
Change-Id: I955b60649364ab410f2453cafd46a496f2fcb43e
vp9/encoder/vp9_rdopt.c
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diff --git
a/vp9/encoder/vp9_rdopt.c
b/vp9/encoder/vp9_rdopt.c
index
399c534
..
fb31f42
100644
(file)
--- a/
vp9/encoder/vp9_rdopt.c
+++ b/
vp9/encoder/vp9_rdopt.c
@@
-1781,6
+1781,9
@@
static void rd_check_segment_txsize(VP9_COMP *cpi, MACROBLOCK *x,
further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param;
// adjust src pointer for this block
mi_buf_shift(x, i);
+
+ vp9_clamp_mv_min_max(x, &bsi->ref_mv->as_mv);
+
if (cpi->sf.search_method == HEX) {
bestsme = vp9_hex_search(x, &mvp_full.as_mv,
step_param,