From 7582f19318d614038e14931c5d26c87d4f012b74 Mon Sep 17 00:00:00 2001
From: Michael Sheakoski <michael@mjsdigital.com>
Date: Wed, 18 Feb 2009 00:35:55 -0500
Subject: [PATCH] Fixed bug with PNG/GIF not seeking to the right point in the
 stream

---
 lib/parsers/gif.rb | 3 ++-
 lib/parsers/png.rb | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/parsers/gif.rb b/lib/parsers/gif.rb
index e59bef6..d74e2c3 100644
--- a/lib/parsers/gif.rb
+++ b/lib/parsers/gif.rb
@@ -3,7 +3,8 @@ module ImageSpec
   class GIF
 
     def self.dimensions(file)
-      file.read(4, 6).unpack('SS')
+      file.seek(6)
+      file.read(4).unpack('SS')
     end
 
   end
diff --git a/lib/parsers/png.rb b/lib/parsers/png.rb
index 00a179b..6b6e680 100644
--- a/lib/parsers/png.rb
+++ b/lib/parsers/png.rb
@@ -3,7 +3,8 @@ module ImageSpec
   class PNG
 
     def self.dimensions(file)
-      file.read(8, 0x10).unpack('NN')
+      file.seek(0x10)
+      file.read(8).unpack('NN')
     end
 
   end