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vc1: properly zero coded_block[] edges on new slice entry.

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Previously, we would leave the left edge uninitialized, which led to
CBP prediction errors on slice edges, e.g. in SA10098.vc1.
This commit is contained in:
Ronald S. Bultje 2011-08-24 14:36:16 -07:00
parent b9630bcf82
commit d4b9974465
1 changed files with 1 additions and 1 deletions
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2
libavcodec/vc1dec.c
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@ -3019,7 +3019,7 @@ static void vc1_decode_i_blocks_adv(VC1Context *v)
s->mb_x = 0; s->mb_x = 0;
ff_init_block_index(s); ff_init_block_index(s);
memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0, memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0,
s->b8_stride * sizeof(*s->coded_block)); (1 + s->b8_stride) * sizeof(*s->coded_block));
} }
for(; s->mb_y < s->end_mb_y; s->mb_y++) { for(; s->mb_y < s->end_mb_y; s->mb_y++) {
s->mb_x = 0; s->mb_x = 0;