Use better J2KImageProxy::same() method.

[dcpomatic.git] / src / lib / image_proxy.h

diff --git a/src/lib/image_proxy.h b/src/lib/image_proxy.h
index 39cbda27d85e4572c99480b0b921064775e10099..1f19a4160b312ce436994ba8aec6ecb53273c02d 100644 (file)
--- a/src/lib/image_proxy.h
+++ b/src/lib/image_proxy.h
@@ -64,9 +64,7 @@ public:
        virtual void add_metadata (xmlpp::Node *) const = 0;
        virtual void send_binary (boost::shared_ptr<Socket>) const = 0;
        /** @return true if our image is definitely the same as another, false if it is probably not */
-       virtual bool same (boost::shared_ptr<const ImageProxy>) const {
-               return false;
-       }
+       virtual bool same (boost::shared_ptr<const ImageProxy>) const = 0;
 };
 
 boost::shared_ptr<ImageProxy> image_proxy_factory (boost::shared_ptr<cxml::Node> xml, boost::shared_ptr<Socket> socket);