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From 6daf5f3e1ec6eff03b7982889874a3de6617db8d Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Mon, 30 Nov 2020 22:37:07 +0100
Subject: [PATCH] Encoder: avoid global buffer overflow on irreversible
conversion when too many decomposition levels are specified (fixes #1286)
---
src/lib/openjp2/dwt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/lib/openjp2/dwt.c b/src/lib/openjp2/dwt.c
index ee9eb5e63..4164ba090 100644
--- a/src/lib/openjp2/dwt.c
+++ b/src/lib/openjp2/dwt.c
@@ -1976,7 +1976,7 @@ void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec)
if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
stepsize = 1.0;
} else {
- OPJ_FLOAT64 norm = opj_dwt_norms_real[orient][level];
+ OPJ_FLOAT64 norm = opj_dwt_getnorm_real(level, orient);
stepsize = (1 << (gain)) / norm;
}
opj_dwt_encode_stepsize((OPJ_INT32) floor(stepsize * 8192.0),
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