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indeo3: Fix null ptr dereference
Fixes Ticket804 Bug found by: Oana Stratulat Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -770,7 +770,8 @@ static int parse_bintree(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
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/* get motion vector index and setup the pointer to the mv set */
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if (!ctx->need_resync)
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ctx->next_cell_data = &ctx->gb.buffer[(get_bits_count(&ctx->gb) + 7) >> 3];
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curr_cell.mv_ptr = &ctx->mc_vectors[*(ctx->next_cell_data++) << 1];
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if(ctx->mc_vectors)
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curr_cell.mv_ptr = &ctx->mc_vectors[*(ctx->next_cell_data++) << 1];
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curr_cell.tree = 1; /* enter the VQ tree */
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UPDATE_BITPOS(8);
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} else { /* VQ tree DATA code */
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