Prevent NULL dereferences when missing the reference frame in the bink decoder.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -959,8 +959,9 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
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for (i = 0; i < BINK_NB_SRC; i++)
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for (i = 0; i < BINK_NB_SRC; i++)
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read_bundle(gb, c, i);
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read_bundle(gb, c, i);
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ref_start = c->last.data[plane_idx];
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ref_start = c->last.data[plane_idx] ? c->last.data[plane_idx]
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ref_end = c->last.data[plane_idx]
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: c->pic.data[plane_idx];
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ref_end = ref_start
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+ (bw - 1 + c->last.linesize[plane_idx] * (bh - 1)) * 8;
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+ (bw - 1 + c->last.linesize[plane_idx] * (bh - 1)) * 8;
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for (i = 0; i < 64; i++)
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for (i = 0; i < 64; i++)
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@ -989,7 +990,8 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
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if (by == bh)
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if (by == bh)
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break;
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break;
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dst = c->pic.data[plane_idx] + 8*by*stride;
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dst = c->pic.data[plane_idx] + 8*by*stride;
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prev = c->last.data[plane_idx] + 8*by*stride;
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prev = (c->last.data[plane_idx] ? c->last.data[plane_idx]
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: c->pic.data[plane_idx]) + 8*by*stride;
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for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) {
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for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) {
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blk = get_value(c, BINK_SRC_BLOCK_TYPES);
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blk = get_value(c, BINK_SRC_BLOCK_TYPES);
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// 16x16 block type on odd line means part of the already decoded block, so skip it
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// 16x16 block type on odd line means part of the already decoded block, so skip it
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