| /* 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * SECTION:gstnetaddressmeta |
| * @short_description: Network address metadata |
| * |
| * #GstNetAddressMeta can be used to store a network address (a #GSocketAddress) |
| * in a #GstBuffer so that it network elements can track the to and from address |
| * of the buffer. |
| */ |
| |
| #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 (g_once_init_enter (&meta_info)) { |
| const GstMetaInfo *mi = gst_meta_register (GST_NET_ADDRESS_META_API_TYPE, |
| "GstNetAddressMeta", |
| sizeof (GstNetAddressMeta), |
| net_address_meta_init, |
| net_address_meta_free, net_address_meta_transform); |
| g_once_init_leave (&meta_info, mi); |
| } |
| return meta_info; |
| } |
| |
| /** |
| * gst_buffer_add_net_address_meta: |
| * @buffer: a #GstBuffer |
| * @addr: a @GSocketAddress to connect to @buffer |
| * |
| * Attaches @addr as metadata in a #GstNetAddressMeta to @buffer. |
| * |
| * Returns: (transfer none): a #GstNetAddressMeta connected to @buffer |
| */ |
| 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; |
| } |