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VC1: restore mistakenly removed code

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The code was mistakenly removed in cad16562c8d76ea2a2a6495f29296c3ff7966946.
It stored some motion vector data for future use in B-pictures.

This fixes Bugzilla bug #57.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Mashiat Sarker Shakkhar 2011-10-22 19:41:04 +05:00 committed by Diego Biurrun
parent e53eecd0e7
commit f18746528d
1 changed files with 4 additions and 0 deletions
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4
libavcodec/vc1dec.c
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@ -930,6 +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;
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
return; //no need to do MC for intra blocks
}
@ -941,6 +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;
uvmx = (tx + ((tx & 3) == 3)) >> 1;
uvmy = (ty + ((ty & 3) == 3)) >> 1;