From d2b76c751b6e6067c7e095472581a011026a3403 Mon Sep 17 00:00:00 2001
From: Brian Popow <popow@gmx.de>
Date: Sat, 18 Jan 2020 19:48:05 +0100
Subject: [PATCH] Fix image data size in webpinfo for VP8: 10 bytes are already
 read during parsing the header

---
 src/ImageSharp/Formats/WebP/WebPDecoderCore.cs  | 2 +-
 src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/src/ImageSharp/Formats/WebP/WebPDecoderCore.cs b/src/ImageSharp/Formats/WebP/WebPDecoderCore.cs
index fafb5e752a..bdc73a939b 100644
--- a/src/ImageSharp/Formats/WebP/WebPDecoderCore.cs
+++ b/src/ImageSharp/Formats/WebP/WebPDecoderCore.cs
@@ -341,7 +341,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
                        Height = height,
                        BitsPerPixel = features?.Alpha is true ? WebPBitsPerPixel.Pixel32 : WebPBitsPerPixel.Pixel24,
                        IsLossLess = false,
-                       ImageDataSize = dataSize,
+                       ImageDataSize = dataSize - 10, // 10 bytes are read here in the header already.
                        Features = features,
                        Vp8Profile = (sbyte)version
                    };
diff --git a/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs b/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs
index f01d5d3625..9a1862981b 100644
--- a/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs
+++ b/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs
@@ -60,13 +60,6 @@ namespace SixLabors.ImageSharp.Formats.WebP
         }
     }
 
-    enum LoopFilter
-    {
-        Normal,
-        Simple,
-        None
-    }
-
     struct YUVPixel
     {
         public byte Y { get; }