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avcodec/vc1: correct mspel for field-interlace B frames

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mspel indicates the use of bicubic interpolation. The check wrongly included
MVMODE MV_PMODE_1MV_HPEL as using bilinear interpolation.

Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
This commit is contained in:
Jerome Borsboom 2018-04-23 21:00:08 +02:00 committed by Paul B Mahol
parent 7a70879624
commit a1dc0bdaf4
1 changed files with 1 additions and 1 deletions
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libavcodec/vc1.c
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@ -1226,7 +1226,7 @@ int ff_vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
v->mv_mode = ff_vc1_mv_pmode_table2[lowquant][mvmode];
v->qs_last = v->s.quarter_sample;
v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV || v->mv_mode == MV_PMODE_MIXED_MV);
v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || v->mv_mode == MV_PMODE_1MV_HPEL);
v->s.mspel = (v->mv_mode != MV_PMODE_1MV_HPEL_BILIN);
status = bitplane_decoding(v->forward_mb_plane, &v->fmb_is_raw, v);
if (status < 0)
return -1;