From 129b04fad01452e18bab8b9f82e084768e88cc16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 29 Jan 2016 23:39:26 +0100
Subject: [PATCH] mxftypes: Generate UUIDs according to RFC4122 version 4 (aka
 random)

Instead of fully random UUIDs, these should follow a scheme.
---
 gst/mxf/mxftypes.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gst/mxf/mxftypes.c b/gst/mxf/mxftypes.c
index a2af02e085..14e236292d 100644
--- a/gst/mxf/mxftypes.c
+++ b/gst/mxf/mxftypes.c
@@ -216,7 +216,8 @@ mxf_uuid_init (MXFUUID * uuid, GHashTable * hashtable)
   do {
     for (i = 0; i < 4; i++)
       GST_WRITE_UINT32_BE (&uuid->u[i * 4], g_random_int ());
-
+    uuid->u[6] = 0x40 | (uuid->u[6] & 0x0f);
+    uuid->u[8] = (uuid->u[8] & 0xbf) | 0x80;
   } while (hashtable && (mxf_uuid_is_zero (uuid) ||
           g_hash_table_lookup_extended (hashtable, uuid, NULL, NULL)));
 }