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vc1dec: Try to fix vc1_mc_4mv_chroma4() parameters 

This fixes several chroma artifacts in several videos

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-04-25 21:32:19 +02:00
parent 9b49d3974e
commit 688fc4ac56
1 changed files with 3 additions and 1 deletions
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4
libavcodec/vc1dec.c
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@ -4553,6 +4553,7 @@ static int vc1_decode_b_mb_intfr(VC1Context *v)
vc1_mc_4mv_luma(v, i, 1, 1);
}
vc1_mc_4mv_chroma4(v, 0, 0, 0);
vc1_mc_4mv_chroma4(v, 1, 1, 1);
} else {
vc1_mc_1mv(v, 0);
vc1_interp_mc(v);
@ -4573,6 +4574,7 @@ static int vc1_decode_b_mb_intfr(VC1Context *v)
}
vc1_mc_4mv_chroma4(v, 0, 0, 0);
vc1_mc_4mv_chroma4(v, 1, 1, 1);
} else if (bmvtype == BMV_TYPE_INTERPOLATED) {
mvbp = v->twomvbp;
dmv_x = dmv_y = 0;
@ -4624,7 +4626,7 @@ static int vc1_decode_b_mb_intfr(VC1Context *v)
vc1_mc_4mv_luma(v, 1, dir, 0);
vc1_mc_4mv_luma(v, 2, dir2, 0);
vc1_mc_4mv_luma(v, 3, dir2, 0);
vc1_mc_4mv_chroma4(v, 0, 0, 0);
vc1_mc_4mv_chroma4(v, dir, dir2, 0);
} else {
dir = bmvtype == BMV_TYPE_BACKWARD;