From f154ebf91f88e68745e441bc18d9c8b3775f08ac Mon Sep 17 00:00:00 2001
From: Jason Nelson <jason@carbonmade.com>
Date: Fri, 17 Aug 2018 15:03:27 -0700
Subject: [PATCH] Eliminate headers allocation when writting huffman table

---
 src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
index 889aa0700..f7b6fe996 100644
--- a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
+++ b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
@@ -550,7 +550,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         private void WriteDefineHuffmanTables(int componentCount)
         {
             // Table identifiers.
-            byte[] headers = { 0x00, 0x10, 0x01, 0x11 };
+            Span<byte> headers = stackalloc byte[] { 0x00, 0x10, 0x01, 0x11 };
+
             int markerlen = 2;
             HuffmanSpec[] specs = HuffmanSpec.TheHuffmanSpecs;