From d0d0f14dea03986f05fcc23d221c5f9a3ad4332e Mon Sep 17 00:00:00 2001
From: Dustin Oprea <dustin@randomingenuity.com>
Date: Sun, 17 May 2020 20:16:53 -0400
Subject: [PATCH] tags_data.go: FNumber and ExposureTime can now be decoded if
 SRATIONAL

---
 v2/tags_data.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/v2/tags_data.go b/v2/tags_data.go
index 84f0dc8..281b74f 100644
--- a/v2/tags_data.go
+++ b/v2/tags_data.go
@@ -564,10 +564,12 @@ IFD:
   type_name: ASCII
 - id: 0x829a
   name: ExposureTime
-  type_name: RATIONAL
+# NOTE(dustin): SRATIONAL isn't mentioned in the standard, but we have seen it in real data.
+  type_names: [RATIONAL, SRATIONAL]
 - id: 0x829d
   name: FNumber
-  type_name: RATIONAL
+# NOTE(dustin): SRATIONAL isn't mentioned in the standard, but we have seen it in real data.
+  type_names: [RATIONAL, SRATIONAL]
 - id: 0x83bb
   name: IPTCNAA
   type_name: LONG