vc1: properly zero coded_block[] edges on new slice entry.
Previously, we would leave the left edge uninitialized, which led to
CBP prediction errors on slice edges, e.g. in SA10098.vc1.
(cherry picked from commit d4b9974465
)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:

committed by
Reinhard Tartler

parent
ce8f40a7b9
commit
97ce2a29b6
@@ -3020,7 +3020,7 @@ static void vc1_decode_i_blocks_adv(VC1Context *v)
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s->mb_x = 0;
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ff_init_block_index(s);
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memset(&s->coded_block[s->block_index[0]-s->b8_stride], 0,
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s->b8_stride * sizeof(*s->coded_block));
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(1 + s->b8_stride) * sizeof(*s->coded_block));
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}
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for(; s->mb_y < s->end_mb_y; s->mb_y++) {
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s->mb_x = 0;
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