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avcodec/vc1: Simplify dmv_y initialization

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
zhaoxiu.zeng
2015-02-25 00:28:45 +08:00
committed by Michael Niedermayer
parent 751883c602
commit d8e030c3cc
1 changed files with 2 additions and 5 deletions
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7
libavcodec/vc1_block.c
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@@ -259,12 +259,9 @@ static av_always_inline void get_mvdata_interlaced(VC1Context *v, int *dmv_x,
*dmv_x = get_bits(gb, v->k_x); *dmv_x = get_bits(gb, v->k_x);
*dmv_y = get_bits(gb, v->k_y); *dmv_y = get_bits(gb, v->k_y);
if (v->numref) { if (v->numref) {
if (pred_flag) { if (pred_flag)
*pred_flag = *dmv_y & 1; *pred_flag = *dmv_y & 1;
*dmv_y = (*dmv_y + *pred_flag) >> 1; *dmv_y = (*dmv_y + (*dmv_y & 1)) >> 1;
} else {
*dmv_y = (*dmv_y + (*dmv_y & 1)) >> 1;
}
} }
} }
else { else {