From 4f10036f144b22ca4015c88f7ca028e55726bc98 Mon Sep 17 00:00:00 2001
From: Ildar Khayrutdinov <ildarkhairutdin@gmail.com>
Date: Wed, 27 Oct 2021 08:55:49 +0300
Subject: [PATCH] skipping SubIfd64 (disable SubIfd64 related code)

---
 .../Formats/Tiff/Ifd/EntryReader.cs           |  2 +-
 .../Metadata/Profiles/Exif/ExifReader.cs      | 38 +++++++++----------
 2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/src/ImageSharp/Formats/Tiff/Ifd/EntryReader.cs b/src/ImageSharp/Formats/Tiff/Ifd/EntryReader.cs
index ee7315a7b..58b042e84 100644
--- a/src/ImageSharp/Formats/Tiff/Ifd/EntryReader.cs
+++ b/src/ImageSharp/Formats/Tiff/Ifd/EntryReader.cs
@@ -33,7 +33,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
                 this.ReadValues64(this.Values, ifdOffset);
                 this.NextIfdOffset = this.ReadUInt64();
 
-                this.ReadSubIfd64(this.Values);
+                //// this.ReadSubIfd64(this.Values);
             }
         }
 
diff --git a/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs b/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs
index 1a39d723a..bb8e6b9f3 100644
--- a/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs
+++ b/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs
@@ -227,16 +227,16 @@ namespace SixLabors.ImageSharp.Metadata.Profiles.Exif
             }
         }
 
-        protected void ReadSubIfd64(List<IExifValue> values)
-        {
-            if (this.subIfds is not null)
-            {
-                foreach (ulong subIfdOffset in this.subIfds)
-                {
-                    this.ReadValues64(values, subIfdOffset);
-                }
-            }
-        }
+        ////protected void ReadSubIfd64(List<IExifValue> values)
+        ////{
+        ////    if (this.subIfds is not null)
+        ////    {
+        ////        foreach (ulong subIfdOffset in this.subIfds)
+        ////        {
+        ////            this.ReadValues64(values, subIfdOffset);
+        ////        }
+        ////    }
+        ////}
 
         private static TDataType[] ToArray<TDataType>(ExifDataType dataType, ReadOnlySpan<byte> data, ConverterMethod<TDataType> converter)
         {
@@ -482,15 +482,15 @@ namespace SixLabors.ImageSharp.Metadata.Profiles.Exif
                 case ExifTagValue.TileByteCounts:
                     exifValue = new ExifLong8Array(ExifTagValue.TileByteCounts);
                     break;
-                case ExifTagValue.SubIFDOffset:
-                    exifValue = new ExifLong8(ExifTagValue.SubIFDOffset);
-                    break;
-                case ExifTagValue.GPSIFDOffset:
-                    exifValue = new ExifLong8(ExifTagValue.GPSIFDOffset);
-                    break;
-                case ExifTagValue.SubIFDs:
-                    exifValue = new ExifLong8Array(ExifTagValue.SubIFDs);
-                    break;
+                ////case ExifTagValue.SubIFDOffset:
+                ////    exifValue = new ExifLong8(ExifTagValue.SubIFDOffset);
+                ////    break;
+                ////case ExifTagValue.GPSIFDOffset:
+                ////    exifValue = new ExifLong8(ExifTagValue.GPSIFDOffset);
+                ////    break;
+                ////case ExifTagValue.SubIFDs:
+                ////    exifValue = new ExifLong8Array(ExifTagValue.SubIFDs);
+                ////    break;
                 default:
                     exifValue = ExifValues.Create(tag) ?? ExifValues.Create(tag, dataType, numberOfComponents);
                     break;