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VC1: Add bottom field offset to block_index[] to avoid rewriting (+10L)

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Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
shahriman AMS 2011-11-08 08:51:45 +00:00 • committed by Anton Khirnov
parent 62622d04eb
commit c33d4916fb
1 changed files with 4 additions and 4 deletions
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8
libavcodec/vc1dec.c
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@ -930,8 +930,8 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
if (!v->field_mode || (v->field_mode && !v->numref)) {
valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty);
if (!valid_count) {
s->current_picture.f.motion_val[1][s->block_index[0]][0] = 0;
s->current_picture.f.motion_val[1][s->block_index[0]][1] = 0;
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0;
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0;
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
return; //no need to do MC for intra blocks
}
@ -943,8 +943,8 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
if (dominant)
chroma_ref_type = !v->cur_field_type;
}
s->current_picture.f.motion_val[1][s->block_index[0]][0] = tx;
s->current_picture.f.motion_val[1][s->block_index[0]][1] = ty;
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx;
s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty;
uvmx = (tx + ((tx & 3) == 3)) >> 1;
uvmy = (ty + ((ty & 3) == 3)) >> 1;