# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1441802320 -7200
# Node ID e9fa3d280806f2dd071c60243fd1a5a452d8c412
# Parent  9369980667e7fed0fe93f0373062cf53e0893599
Added automatic rotation detection.

diff -r 9369980667e7 -r e9fa3d280806 optimiser.py
--- a/optimiser.py	Wed Sep 09 01:05:04 2015 +0200
+++ b/optimiser.py	Wed Sep 09 14:38:40 2015 +0200
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 from array import array
+import EXIF
 import PIL.Image
 import sys
 
@@ -43,8 +44,9 @@
     scaled_filename = (sys.argv[3:] + [None])[0]
     rotate = "-r" in sys.argv[3:]
 
+    x = EXIF.process_file(open(input_filename))
     im = PIL.Image.open(input_filename)
-    if rotate:
+    if rotate or x["Image Orientation"].values == [6L]:
         im = im.rotate(270)
     w, h = im.size
     height = (width * h) / w