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diff -rupN --no-dereference openjpeg-2.4.0/src/bin/common/color.c openjpeg-2.4.0-new/src/bin/common/color.c
--- openjpeg-2.4.0/src/bin/common/color.c 2020-12-28 21:59:39.000000000 +0100
+++ openjpeg-2.4.0-new/src/bin/common/color.c 2021-05-27 23:46:46.961130438 +0200
@@ -368,12 +368,15 @@ static void sycc420_to_rgb(opj_image_t *
sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
- ++y;
+ if (*y != img->comps[0].data[loopmaxh])
+ ++y;
++r;
++g;
++b;
- ++cb;
- ++cr;
+ if (*cb != img->comps[1].data[loopmaxh])
+ ++cb;
+ if (*cr != img->comps[2].data[loopmaxh])
+ ++cr;
}
if (j < maxw) {
sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
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