Add an assert.

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

diff --git a/src/lib/image_png.h b/src/lib/image_png.h
index b3c0774fde08968d7b2574664345dab08d63726c..bfc52224602c45d53148e6d2b7895d467f442855 100644 (file)
--- a/src/lib/image_png.h
+++ b/src/lib/image_png.h
@@ -19,4 +19,11 @@
 */
 
 
+#include <dcp/array_data.h>
+#include <memory>
+
+
+class Image;
+
+
 dcp::ArrayData image_as_png (std::shared_ptr<const Image> image);