Barely-functioning GL playback with new arrangement.

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

diff --git a/src/lib/encoder.h b/src/lib/encoder.h
index f4116c50c5888172dc3191e79562979fa7178054..792029a9164f0ea4ce30054af0496501e113ea49 100644 (file)
--- a/src/lib/encoder.h
+++ b/src/lib/encoder.h
@@ -43,7 +43,10 @@ public:
        virtual void go () = 0;
 
        /** @return the current frame rate over the last short while */
-       virtual float current_rate () const = 0;
+       virtual boost::optional<float> current_rate () const {
+               return boost::optional<float>();
+       }
+
        /** @return the number of frames that are done */
        virtual Frame frames_done () const = 0;
        virtual bool finishing () const = 0;