From: Sebastian Dröge <sebastian@centricular.com>
Date: Fri, 29 Jan 2016 22:39:26 +0000 (+0100)
Subject: mxftypes: Generate UUIDs according to RFC4122 version 4 (aka random)
X-Git-Tag: 1.19.3~507^2~7149
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=129b04fad01452e18bab8b9f82e084768e88cc16;p=platform%2Fupstream%2Fgstreamer.git

mxftypes: Generate UUIDs according to RFC4122 version 4 (aka random)

Instead of fully random UUIDs, these should follow a scheme.
---

diff --git a/gst/mxf/mxftypes.c b/gst/mxf/mxftypes.c
index a2af02e..14e2362 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)));
 }