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vc1dec: Set opposite to the correct value for 1REF field pictures

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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Mashiat Sarker Shakkhar 2012-10-09 19:38:18 +00:00 committed by Derek Buitenhuis
parent 7cc3c4e1d4
commit eb657ecefd
1 changed files with 10 additions and 4 deletions
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14
libavcodec/vc1dec.c
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@ -1458,10 +1458,16 @@ static inline void vc1_pred_mv(VC1Context *v, int n, int dmv_x, int dmv_y,
}
if (v->field_mode) {
if (num_samefield <= num_oppfield)
opposite = 1 - pred_flag;
else
opposite = pred_flag;
if (!v->numref)
// REFFIELD determines if the last field or the second-last field is
// to be used as reference
opposite = 1 - v->reffield;
else {
if (num_samefield <= num_oppfield)
opposite = 1 - pred_flag;
else
opposite = pred_flag;
}
} else
opposite = 0;
if (opposite) {