1 files changed, 38 insertions, 0 deletions
diff --git a/lib/libdvben50221/en50221_app_utils.c b/lib/libdvben50221/en50221_app_utils.c
new file mode 100644
index 0000000..df2632a
--- /dev/null
+++ b/lib/libdvben50221/en50221_app_utils.c
@@ -0,0 +1,38 @@
+/*
+    en50221 encoder An implementation for libdvb
+    an implementation for the en50221 transport layer
+
+    Copyright (C) 2004, 2005 Manu Abraham <abraham.manu@gmail.com>
+    Copyright (C) 2005 Julian Scheel (julian at jusst dot de)
+    Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)
+
+    This library is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation; either version 2.1 of
+    the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+*/
+
+#include "en50221_app_utils.h"
+
+struct en50221_app_public_resource_id
+	*en50221_app_decode_public_resource_id(struct en50221_app_public_resource_id *idf,
+					       uint32_t resource_id)
+{
+	// reject private resources
+	if ((resource_id & 0xc0000000) == 0xc0000000)
+		return NULL;
+
+	idf->resource_class = (resource_id >> 16) & 0xffff;	// use the resource_id as the MSBs of class
+	idf->resource_type = (resource_id >> 6) & 0x3ff;
+	idf->resource_version = resource_id & 0x3f;
+	return idf;
+}