From: Matthieu Darbois <mayeut@users.noreply.github.com>
Date: Mon, 22 Dec 2014 15:00:12 +0000 (+0000)
Subject: [trunk] fixed compression check for 1 bit unsigned component (fixes issue 457)
X-Git-Tag: v2.1.1~22^2~152
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bde5ba6ae831424695e8b677a5e554e0b0275c20;p=openjpeg

[trunk] fixed compression check for 1 bit unsigned component (fixes issue 457)
---

diff --git a/src/lib/openjp2/jp2.c b/src/lib/openjp2/jp2.c
index 3ee07af3..6d7a24e1 100644
--- a/src/lib/openjp2/jp2.c
+++ b/src/lib/openjp2/jp2.c
@@ -1969,7 +1969,7 @@ OPJ_BOOL opj_jp2_default_validation (	opj_jp2_t * jp2,
 	l_is_valid &= (jp2->w > 0);
 	/* precision */
 	for (i = 0; i < jp2->numcomps; ++i)	{
-		l_is_valid &= (jp2->comps[i].bpcc > 0);
+		l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) < 38U); /* 0 is valid, ignore sign for check */
 	}
 
 	/* METH */