Fix a refcount issue of p_input in the core of the 0.8.6 branch

src/video_output/video_output.c

@@ -736,6 +736,12 @@ static void RunThread( vout_thread_t *p_vout)
         display_date = 0;
         current_date = mdate();
 
+        if( p_input && p_input->b_die )
+        {
+            vlc_object_release( p_input );
+            p_input = NULL;
+        }
+
 #if 0
         p_vout->c_loops++;
         if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )