From 37348d9f287138714f7a1f60c63668caa6887be0 Mon Sep 17 00:00:00 2001
From: Melissa Linkert <melissa@glencoesoftware.com>
Date: Wed, 26 Jun 2024 12:28:27 -0500
Subject: [PATCH] SVS: update isThisType to reject files with a single IFD

See https://github.com/IDR/idr-metadata/issues/699
---
 components/formats-gpl/src/loci/formats/in/SVSReader.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/formats-gpl/src/loci/formats/in/SVSReader.java b/components/formats-gpl/src/loci/formats/in/SVSReader.java
index d3231b5bfdf..d9820b62dd7 100644
--- a/components/formats-gpl/src/loci/formats/in/SVSReader.java
+++ b/components/formats-gpl/src/loci/formats/in/SVSReader.java
@@ -174,7 +174,9 @@ else if (description instanceof String) {
           }
           if (imageDescription != null
               && imageDescription.startsWith(APERIO_IMAGE_DESCRIPTION_PREFIX)) {
-            return true;
+            // reject anything with just one IFD, as that indicates there is
+            // no pyramid, thumbnail, label, or macro
+            return tiffParser.getIFDOffsets().length > 1;
           }
         }
         return false;