$OpenBSD: patch-libavutil_random_seed_c,v 1.2 2016/05/03 06:05:49 ajacoutot Exp $

lavu/random_seed: use arc4random() when available

--- libavutil/random_seed.c.orig	Wed Apr 27 00:56:57 2016
+++ libavutil/random_seed.c	Wed Apr 27 01:08:36 2016
@@ -126,6 +126,10 @@ uint32_t av_get_random_seed(void)
     }
 #endif
 
+#if HAVE_ARC4RANDOM
+    return arc4random();
+#endif
+
     if (read_random(&seed, "/dev/urandom") == sizeof(seed))
         return seed;
     if (read_random(&seed, "/dev/random")  == sizeof(seed))
