input: constify.

diff --git a/include/vlc_input.h b/include/vlc_input.h
index 7d1d248162167b948a3a9cab42f4c6b54872252e..930f3eb4d58e3c5a01bdccd9b0606b04ab019716 100644 (file)
--- a/include/vlc_input.h
+++ b/include/vlc_input.h
@@ -160,7 +160,7 @@ static inline void vlc_input_title_Delete( input_title_t *t )
     free( t );
 }
 
-static inline input_title_t *vlc_input_title_Duplicate( input_title_t *t )
+static inline input_title_t *vlc_input_title_Duplicate( const input_title_t *t )
 {
     input_title_t *dup = vlc_input_title_New( );
     int i;