From 264a268f7c1244b47d9fa54ad342d80b0f98e16d Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Fri, 26 Jul 2013 00:20:21 +0100
Subject: Basic if sketchy support for image sequences.

---
 src/lib/util.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/lib/util.cc')

diff --git a/src/lib/util.cc b/src/lib/util.cc
index 183ff7d8b..26dfa8bf7 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -775,3 +775,12 @@ LocaleGuard::~LocaleGuard ()
 	setlocale (LC_NUMERIC, _old);
 	free (_old);
 }
+
+bool
+valid_image_file (boost::filesystem::path f)
+{
+	string ext = f.extension().string();
+	transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
+	return (ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" || ext == ".png" || ext == ".bmp");
+}
+
-- 
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