const correctness.

diff --git a/src/lib/audio_ring_buffers.h b/src/lib/audio_ring_buffers.h
index cec7c712aee24d663bc2de8dc8859e47568f23fa..906160aa72f7fb7e1d5553293c72c52a72e00f3b 100644 (file)
--- a/src/lib/audio_ring_buffers.h
+++ b/src/lib/audio_ring_buffers.h
@@ -37,7 +37,7 @@ public:
        void get (float* out, int channels, int frames);
 
        void clear ();
-       Frame size ();
+       Frame size () const;
 
        DCPTime latest () const {
                boost::mutex::scoped_lock lm (_mutex);