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Code Issues Releases Activity

Set DC = 0 for skipped MB as it interferes DC prediction

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Originally committed as revision 5807 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-07-21 04:03:56 +00:00
parent b53921aabd
commit 92ad0d9d3b
1 changed files with 8 additions and 2 deletions
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10
libavcodec/vc1.c
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@ -2491,7 +2491,10 @@ static int vc1_decode_p_mb(VC1Context *v)
else //Skipped
{
s->mb_intra = 0;
for(i = 0; i < 6; i++) v->mb_type[0][s->block_index[i]] = 0;
for(i = 0; i < 6; i++) {
v->mb_type[0][s->block_index[i]] = 0;
s->dc_val[0][s->block_index[i]] = 0;
}
s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;
s->current_picture.qscale_table[mb_pos] = 0;
vc1_pred_mv(s, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
@ -2590,7 +2593,10 @@ static int vc1_decode_p_mb(VC1Context *v)
else //Skipped MB
{
s->mb_intra = 0;
for (i=0; i<6; i++) v->mb_type[0][s->block_index[i]] = 0;
for (i=0; i<6; i++) {
v->mb_type[0][s->block_index[i]] = 0;
s->dc_val[0][s->block_index[i]] = 0;
}
for (i=0; i<4; i++)
{
vc1_pred_mv(s, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]);