1 files changed, 110 insertions, 0 deletions
diff --git a/libs/gst/net/gstnetaddressmeta.c b/libs/gst/net/gstnetaddressmeta.c
new file mode 100644
index 0000000..af869ae
--- /dev/null
+++ b/libs/gst/net/gstnetaddressmeta.c
@@ -0,0 +1,110 @@
+/* GStreamer
+ * Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library 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.
+ */
+
+/**
+ * SECTION:gstnetaddressmeta
+ * @short_description: Network address metadata
+ *
+ * #GstNetAddress can be used to store a network address. #GstNetAddressMeta can
+ * be used to store a network address in a #GstBuffer so that it network
+ * elements can track the to and from address of the buffer.
+ *
+ * Last reviewed on 2011-11-03 (0.11.2)
+ */
+
+#include <string.h>
+
+#include "gstnetaddressmeta.h"
+
+static gboolean
+net_address_meta_init (GstMeta * meta, gpointer params, GstBuffer * buffer)
+{
+  GstNetAddressMeta *nmeta = (GstNetAddressMeta *) meta;
+
+  nmeta->addr = NULL;
+
+  return TRUE;
+}
+
+static gboolean
+net_address_meta_transform (GstBuffer * transbuf, GstMeta * meta,
+    GstBuffer * buffer, GQuark type, gpointer data)
+{
+  GstNetAddressMeta *nmeta = (GstNetAddressMeta *) meta;
+
+  /* we always copy no matter what transform */
+  gst_buffer_add_net_address_meta (transbuf, nmeta->addr);
+
+  return TRUE;
+}
+
+static void
+net_address_meta_free (GstMeta * meta, GstBuffer * buffer)
+{
+  GstNetAddressMeta *nmeta = (GstNetAddressMeta *) meta;
+
+  if (nmeta->addr)
+    g_object_unref (nmeta->addr);
+  nmeta->addr = NULL;
+}
+
+GType
+gst_net_address_meta_api_get_type (void)
+{
+  static volatile GType type;
+  static const gchar *tags[] = { "origin", NULL };
+
+  if (g_once_init_enter (&type)) {
+    GType _type = gst_meta_api_type_register ("GstNetAddressMetaAPI", tags);
+    g_once_init_leave (&type, _type);
+  }
+  return type;
+}
+
+const GstMetaInfo *
+gst_net_address_meta_get_info (void)
+{
+  static const GstMetaInfo *meta_info = NULL;
+
+  if (meta_info == NULL) {
+    meta_info = gst_meta_register (GST_NET_ADDRESS_META_API_TYPE,
+        "GstNetAddressMeta",
+        sizeof (GstNetAddressMeta),
+        net_address_meta_init,
+        net_address_meta_free, net_address_meta_transform);
+  }
+  return meta_info;
+}
+
+GstNetAddressMeta *
+gst_buffer_add_net_address_meta (GstBuffer * buffer, GSocketAddress * addr)
+{
+  GstNetAddressMeta *meta;
+
+  g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
+  g_return_val_if_fail (G_IS_SOCKET_ADDRESS (addr), NULL);
+
+  meta =
+      (GstNetAddressMeta *) gst_buffer_add_meta (buffer,
+      GST_NET_ADDRESS_META_INFO, NULL);
+
+  meta->addr = g_object_ref (addr);
+
+  return meta;
+}