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vc1: select interlaced scan table by FCM element 

Interlaced videos can contain progressive frames too and now wrong scantable
is selected for them.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Kostya Shishkov 2011-11-26 13:23:39 +01:00 committed by Michael Niedermayer
parent 5c15b78e4a
commit 801393bc96
1 changed files with 4 additions and 4 deletions
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8
libavcodec/vc1dec.c
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@ -3293,7 +3293,7 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n,
i += skip;
if (i > 63)
break;
if (v->fcm != 1)
if (!v->fcm)
idx = v->zz_8x8[0][i++];
else
idx = v->zzi_8x8[i++];
@ -3321,7 +3321,7 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n,
i += skip;
if (i > 15)
break;
if (v->fcm != 1)
if (!v->fcm)
idx = ff_vc1_simple_progressive_4x4_zz[i++];
else
idx = ff_vc1_adv_interlaced_4x4_zz[i++];
@ -3348,7 +3348,7 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n,
i += skip;
if (i > 31)
break;
if (v->fcm != 1)
if (!v->fcm)
idx = v->zz_8x4[i++] + off;
else
idx = ff_vc1_adv_interlaced_8x4_zz[i++] + off;
@ -3375,7 +3375,7 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n,
i += skip;
if (i > 31)
break;
if (v->fcm != 1)
if (!v->fcm)
idx = v->zz_4x8[i++] + off;
else
idx = ff_vc1_adv_interlaced_4x8_zz[i++] + off;