gstreamer/gst/rtsp-server/rtsp-media-mapping.c
2012-11-12 16:18:57 +01:00

176 lines
5 KiB
C

/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at 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.
*/
#include "rtsp-media-mapping.h"
G_DEFINE_TYPE (GstRTSPMediaMapping, gst_rtsp_media_mapping, G_TYPE_OBJECT);
GST_DEBUG_CATEGORY_STATIC (rtsp_media_debug);
#define GST_CAT_DEFAULT rtsp_media_debug
static void gst_rtsp_media_mapping_finalize (GObject * obj);
static GstRTSPMediaFactory *find_factory (GstRTSPMediaMapping * mapping,
const GstRTSPUrl * url);
static void
gst_rtsp_media_mapping_class_init (GstRTSPMediaMappingClass * klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gst_rtsp_media_mapping_finalize;
klass->find_factory = find_factory;
GST_DEBUG_CATEGORY_INIT (rtsp_media_debug, "rtspmediamapping", 0,
"GstRTSPMediaMapping");
}
static void
gst_rtsp_media_mapping_init (GstRTSPMediaMapping * mapping)
{
GST_DEBUG_OBJECT (mapping, "created");
g_mutex_init (&mapping->lock);
mapping->mappings = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, g_object_unref);
}
static void
gst_rtsp_media_mapping_finalize (GObject * obj)
{
GstRTSPMediaMapping *mapping = GST_RTSP_MEDIA_MAPPING (obj);
GST_DEBUG_OBJECT (mapping, "finalized");
g_hash_table_unref (mapping->mappings);
g_mutex_clear (&mapping->lock);
G_OBJECT_CLASS (gst_rtsp_media_mapping_parent_class)->finalize (obj);
}
/**
* gst_rtsp_media_mapping_new:
*
* Make a new media mapping object.
*
* Returns: a new #GstRTSPMediaMapping
*/
GstRTSPMediaMapping *
gst_rtsp_media_mapping_new (void)
{
GstRTSPMediaMapping *result;
result = g_object_new (GST_TYPE_RTSP_MEDIA_MAPPING, NULL);
return result;
}
static GstRTSPMediaFactory *
find_factory (GstRTSPMediaMapping * mapping, const GstRTSPUrl * url)
{
GstRTSPMediaFactory *result;
g_mutex_lock (&mapping->lock);
/* find the location of the media in the hashtable we only use the absolute
* path of the uri to find a mapping. If the mapping depends on other
* properties found in the url, this method should be overridden. */
result = g_hash_table_lookup (mapping->mappings, url->abspath);
if (result)
g_object_ref (result);
g_mutex_unlock (&mapping->lock);
GST_INFO ("found media %p for url abspath %s", result, url->abspath);
return result;
}
/**
* gst_rtsp_media_mapping_find_factory:
* @mapping: a #GstRTSPMediaMapping
* @url: a url
*
* Find the #GstRTSPMediaFactory for @url. The default implementation of this object
* will use the mappings added with gst_rtsp_media_mapping_add_factory ().
*
* Returns: (transfer full): the #GstRTSPMediaFactory for @url. g_object_unref() after usage.
*/
GstRTSPMediaFactory *
gst_rtsp_media_mapping_find_factory (GstRTSPMediaMapping * mapping,
const GstRTSPUrl * url)
{
GstRTSPMediaFactory *result;
GstRTSPMediaMappingClass *klass;
klass = GST_RTSP_MEDIA_MAPPING_GET_CLASS (mapping);
if (klass->find_factory)
result = klass->find_factory (mapping, url);
else
result = NULL;
return result;
}
/**
* gst_rtsp_media_mapping_add_factory:
* @mapping: a #GstRTSPMediaMapping
* @path: a mount point
* @factory: (transfer full): a #GstRTSPMediaFactory
*
* Attach @factory to the mount point @path in @mapping.
*
* @path is of the form (/node)+. Any previous mapping will be freed.
*
* Ownership is taken of the reference on @factory so that @factory should not be
* used after calling this function.
*/
void
gst_rtsp_media_mapping_add_factory (GstRTSPMediaMapping * mapping,
const gchar * path, GstRTSPMediaFactory * factory)
{
g_return_if_fail (GST_IS_RTSP_MEDIA_MAPPING (mapping));
g_return_if_fail (GST_IS_RTSP_MEDIA_FACTORY (factory));
g_return_if_fail (path != NULL);
g_mutex_lock (&mapping->lock);
g_hash_table_insert (mapping->mappings, g_strdup (path), factory);
g_mutex_unlock (&mapping->lock);
}
/**
* gst_rtsp_media_mapping_remove_factory:
* @mapping: a #GstRTSPMediaMapping
* @path: a mount point
*
* Remove the #GstRTSPMediaFactory associated with @path in @mapping.
*/
void
gst_rtsp_media_mapping_remove_factory (GstRTSPMediaMapping * mapping,
const gchar * path)
{
g_return_if_fail (GST_IS_RTSP_MEDIA_MAPPING (mapping));
g_return_if_fail (path != NULL);
g_mutex_lock (&mapping->lock);
g_hash_table_remove (mapping->mappings, path);
g_mutex_unlock (&mapping->lock);
}