From 5d8b14fc9ec2cb41cf1ff43bcad557bf3e7cb968 Mon Sep 17 00:00:00 2001
From: Glandos <bugs-github@antipoul.fr>
Date: Wed, 6 Mar 2019 22:01:42 +0100
Subject: [PATCH] Cache EXIF information

In case we need to call _getexif from the outside, since it's already called while parsing.
cache the result in self.info. This is compatible with other file using _getexif, like WebP.
---
 src/PIL/JpegImagePlugin.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/PIL/JpegImagePlugin.py b/src/PIL/JpegImagePlugin.py
index 2f76e9675..405301859 100644
--- a/src/PIL/JpegImagePlugin.py
+++ b/src/PIL/JpegImagePlugin.py
@@ -455,6 +455,12 @@ def _getexif(self):
     # and is likely to be replaced with something better in a future
     # version.
 
+    # Use the cached version if possible
+    try:
+        return self.info["parsed_exif"]
+    except KeyError:
+        pass
+
     # The EXIF record consists of a TIFF file embedded in a JPEG
     # application marker (!).
     try:
@@ -493,6 +499,8 @@ def _getexif(self):
         info.load(fp)
         exif[0x8825] = _fixup_dict(info)
 
+    # Cache the result for future use
+    self.info["parsed_exif"] = exif
     return exif