From 58ba0365d911b9f9dd68e9abf826682c0b4f2293 Mon Sep 17 00:00:00 2001
From: Michael Adams <mdadams@ece.uvic.ca>
Date: Mon, 6 Mar 2017 08:06:54 -0800
Subject: [PATCH] Added a check in the JP2 encoder to ensure that the image to
 be coded has at least one component.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 src/libjasper/jp2/jp2_enc.c | 5 +++++
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/libjasper/jp2/jp2_enc.c b/src/libjasper/jp2/jp2_enc.c
index 9a5e106..af4d9a4 100644
--- a/src/libjasper/jp2/jp2_enc.c
+++ b/src/libjasper/jp2/jp2_enc.c
@@ -115,6 +115,11 @@ int jp2_encode(jas_image_t *image, jas_stream_t *out, const char *optstr)
 	iccstream = 0;
 	iccprof = 0;
 
+	if (jas_image_numcmpts(image) < 1) {
+		jas_eprintf("image must have at least one component\n");
+		goto error;
+	}
+
 	allcmptssame = 1;
 	sgnd = jas_image_cmptsgnd(image, 0);
 	prec = jas_image_cmptprec(image, 0);
-- 
2.11.0