mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-09 08:06:07 +00:00
e80296cf46
Split out the registration of the metadata API and its implementation. Make a GType for each metadata API. This allows us to store extra information with the API type such as the tags. Change the buffer API so that we can get the metadata using the API GType. Change the query API so that we use the metadata API GType in the allocation query instead of a string. Update netaddress and unit tests
111 lines
3 KiB
C
111 lines
3 KiB
C
/* 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;
|
|
}
|