mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-01 14:11:15 +00:00
6fa6cd8ce4
Original commit message from CVS: First attempt at rebuilding the type/plugin system - make sure caps/props are saved in the registry autoplugging is completely broken. removed the typefactories and typeids from all the pads in the plugins XML load/save is ok (be sure to rerun gstreamer-register)
141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/* Gnome-Streamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
//#define DEBUG_ENABLED
|
|
|
|
#include <stdarg.h>
|
|
#include <gst/gst.h>
|
|
|
|
void
|
|
_gst_caps_initialize (void)
|
|
{
|
|
}
|
|
|
|
static guint16
|
|
get_type_for_mime (gchar *mime)
|
|
{
|
|
guint16 typeid;
|
|
|
|
typeid = gst_type_find_by_mime (mime);
|
|
if (typeid == 0) {
|
|
GstTypeFactory *factory = g_new0 (GstTypeFactory, 1);
|
|
|
|
factory->mime = g_strdup (mime);
|
|
factory->exts = NULL;
|
|
factory->typefindfunc = NULL;
|
|
|
|
typeid = gst_type_register (factory);
|
|
}
|
|
return typeid;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_register:
|
|
* @factory: the factory to register
|
|
*
|
|
* Register the factory.
|
|
*
|
|
* Returns: The registered capability
|
|
*/
|
|
GstCaps *
|
|
gst_caps_register (GstCapsFactory factory)
|
|
{
|
|
GstCapsFactoryEntry tag;
|
|
gint i = 0;
|
|
guint16 typeid;
|
|
GstCaps *caps;
|
|
|
|
g_return_val_if_fail (factory != NULL, NULL);
|
|
|
|
tag = factory[i++];
|
|
|
|
g_return_val_if_fail (tag != NULL, NULL);
|
|
|
|
typeid = get_type_for_mime ((gchar *)tag);
|
|
|
|
caps = g_new0 (GstCaps, 1);
|
|
g_return_val_if_fail (caps != NULL, NULL);
|
|
|
|
caps->id = typeid;
|
|
caps->properties = gst_props_register (&factory[i]);
|
|
|
|
return caps;
|
|
}
|
|
|
|
|
|
/**
|
|
* gst_caps_check_compatibility:
|
|
* @fromcaps: a capabilty
|
|
* @tocaps: a capabilty
|
|
*
|
|
* Checks whether two capabilities are compatible
|
|
*
|
|
* Returns: true if compatible, false otherwise
|
|
*/
|
|
gboolean
|
|
gst_caps_check_compatibility (GstCaps *fromcaps, GstCaps *tocaps)
|
|
{
|
|
g_return_val_if_fail (fromcaps != NULL, FALSE);
|
|
g_return_val_if_fail (tocaps != NULL, FALSE);
|
|
|
|
if (fromcaps->id != tocaps->id)
|
|
return FALSE;
|
|
|
|
return gst_props_check_compatibility (fromcaps->properties, tocaps->properties);
|
|
}
|
|
|
|
|
|
xmlNodePtr
|
|
gst_caps_save_thyself (GstCaps *caps, xmlNodePtr parent)
|
|
{
|
|
xmlNodePtr subtree;
|
|
|
|
g_return_val_if_fail (caps != NULL, NULL);
|
|
|
|
xmlNewChild (parent, NULL, "type", gst_type_find_by_id (caps->id)->mime);
|
|
if (caps->properties) {
|
|
subtree = xmlNewChild (parent, NULL, "properties", NULL);
|
|
|
|
gst_props_save_thyself (caps->properties, subtree);
|
|
}
|
|
|
|
return parent;
|
|
}
|
|
|
|
GstCaps*
|
|
gst_caps_load_thyself (xmlNodePtr parent)
|
|
{
|
|
GstCaps *caps = g_new0 (GstCaps, 1);
|
|
xmlNodePtr field = parent->childs;
|
|
|
|
while (field) {
|
|
if (!strcmp (field->name, "type")) {
|
|
caps->id = get_type_for_mime (xmlNodeGetContent (field));
|
|
}
|
|
else if (!strcmp (field->name, "properties")) {
|
|
caps->properties = gst_props_load_thyself (field);
|
|
}
|
|
field = field->next;
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
|
|
|