Commit 1ee670cf authored by Wim Taymans's avatar Wim Taymans

Added infrastructure to register URI to element+property mappings

Original commit message from CVS:
Added infrastructure to register URI to element+property mappings
parent 6550acf9
......@@ -84,6 +84,7 @@ libgstreamer_@GST_MAJORMINOR@_la_SOURCES = \
gsttrashstack.c \
gsttype.c \
$(GST_TYPEFIND_SRC) \
gsturi.c \
gstutils.c \
gstregistry.c \
$(GST_PARSE_SRC) \
......@@ -143,6 +144,7 @@ gst_headers = \
gsttrashstack.h \
gsttype.h \
gsttypefind.h \
gsturi.h \
gstutils.h \
gstregistry.h \
gstparse.h \
......
......@@ -251,6 +251,7 @@ gst_spider_identity_getcaps (GstPad *pad, GstCaps *caps)
if (otherpad != NULL)
return gst_pad_get_allowed_caps (otherpad);
return NULL;
}
......
......@@ -455,6 +455,7 @@ init_post (void)
gst_autoplug_factory_get_type ();
#endif
gst_index_factory_get_type ();
gst_uri_handler_get_type ();
plugin_path = g_getenv ("GST_PLUGIN_PATH");
......
......@@ -46,6 +46,7 @@
#include <gst/gstcaps.h>
#include <gst/gstprops.h>
#include <gst/gstplugin.h>
#include <gst/gsturi.h>
#include <gst/gstutils.h>
#include <gst/gsttrace.h>
#include <gst/gstxml.h>
......
......@@ -1863,13 +1863,17 @@ gst_pad_get_peer (GstPad *pad)
GstCaps*
gst_pad_get_allowed_caps (GstPad *pad)
{
GstCaps *caps;
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
GST_DEBUG (GST_CAT_PROPERTIES, "get allowed caps of %s:%s",
GST_DEBUG_PAD_NAME (pad));
return gst_caps_copy (GST_RPAD_FILTER (pad));
caps = gst_caps_copy (GST_RPAD_FILTER (pad));
return caps;
}
/**
......
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gsttype.c: Media-type management functions
*
* 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.
*/
/* TODO:
* probably should set up a hash table for the type id's, since currently
* it's a rather pathetic linear search. Eventually there may be dozens
* of id's, but in reality there are only so many instances of lookup, so
* I'm not overly worried yet...
*/
#include "gst_private.h"
#include "gsturi.h"
#include "gstregistry.h"
#include "gstlog.h"
static void gst_uri_handler_class_init (GstURIHandlerClass *klass);
static void gst_uri_handler_init (GstURIHandler *factory);
static GstPluginFeatureClass *parent_class = NULL;
/* static guint gst_uri_handler_signals[LAST_SIGNAL] = { 0 }; */
GType
gst_uri_handler_get_type (void)
{
static GType typefactory_type = 0;
if (!typefactory_type) {
static const GTypeInfo typefactory_info = {
sizeof (GstURIHandlerClass),
NULL,
NULL,
(GClassInitFunc) gst_uri_handler_class_init,
NULL,
NULL,
sizeof(GstURIHandler),
0,
(GInstanceInitFunc) gst_uri_handler_init,
NULL
};
typefactory_type = g_type_register_static (GST_TYPE_PLUGIN_FEATURE,
"GstURIHandler", &typefactory_info, 0);
}
return typefactory_type;
}
static void
gst_uri_handler_class_init (GstURIHandlerClass *klass)
{
GObjectClass *gobject_class;
GstObjectClass *gstobject_class;
GstPluginFeatureClass *gstpluginfeature_class;
gobject_class = (GObjectClass*)klass;
gstobject_class = (GstObjectClass*)klass;
gstpluginfeature_class = (GstPluginFeatureClass*) klass;
parent_class = g_type_class_ref (GST_TYPE_PLUGIN_FEATURE);
}
static void
gst_uri_handler_init (GstURIHandler *factory)
{
}
/**
* gst_uri_handler_new:
* @definition: the definition to use
*
* Creata a new typefactory from the given definition.
*
* Returns: the new typefactory
*/
GstURIHandler*
gst_uri_handler_new (const gchar *name,
const gchar *uri, const gchar *longdesc,
const gchar *element, gchar *property)
{
GstURIHandler *factory;
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (uri != NULL, NULL);
g_return_val_if_fail (element != NULL, NULL);
g_return_val_if_fail (property != NULL, NULL);
factory = gst_uri_handler_find (name);
if (!factory) {
factory = GST_URI_HANDLER (g_object_new (GST_TYPE_URI_HANDLER, NULL));
}
GST_PLUGIN_FEATURE_NAME (factory) = g_strdup (name);
factory->uri = g_strdup (uri);
factory->longdesc = g_strdup (longdesc);
factory->element = g_strdup (element);
factory->property = g_strdup (property);
return factory;
}
/**
* gst_uri_handler_find:
* @name: the name of the typefactory to find
*
* Return the URIHandler with the given name.
*
* Returns: a GstURIHandler with the given name;
*/
GstURIHandler*
gst_uri_handler_find (const gchar *name)
{
GstPluginFeature *feature;
g_return_val_if_fail (name != NULL, NULL);
feature = gst_registry_pool_find_feature (name, GST_TYPE_URI_HANDLER);
if (feature)
return GST_URI_HANDLER (feature);
return NULL;
}
GstURIHandler*
gst_uri_handler_find_by_uri (const gchar *uri)
{
GList *walk, *orig;
GstURIHandler *handler = NULL;
g_return_val_if_fail (uri != NULL, NULL);
orig = walk = gst_registry_pool_feature_list (GST_TYPE_URI_HANDLER);
while (walk) {
handler = GST_URI_HANDLER (walk->data);
if (g_str_has_prefix (uri, handler->uri))
break;
walk = g_list_next (walk);
}
g_list_free (orig);
return handler;
}
GstElement*
gst_uri_handler_create (GstURIHandler *factory, const gchar *name)
{
GstElement *element = NULL;
g_return_val_if_fail (factory != NULL, NULL);
element = gst_element_factory_make (factory->element, name);
return element;
}
GstElement*
gst_uri_handler_make_by_uri (const gchar *uri, const gchar *name)
{
GstElement *element = NULL;
GstURIHandler *handler;
g_return_val_if_fail (uri != NULL, NULL);
handler = gst_uri_handler_find_by_uri (uri);
if (handler) {
element = gst_uri_handler_create (handler, name);
if (element) {
g_object_set (G_OBJECT (element), handler->property, uri, NULL);
}
}
return element;
}
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstscheduler.h: Header for default scheduler code
*
* 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.
*/
#ifndef __GST_URI_H__
#define __GST_URI_H__
#include <glib.h>
#include <gst/gstelement.h>
#include <gst/gstpluginfeature.h>
G_BEGIN_DECLS
#define GST_TYPE_URI_HANDLER (gst_uri_handler_get_type ())
#define GST_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_URI_HANDLER, GstURIHandler))
#define GST_IS_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_URI_HANDLER))
#define GST_URI_HANDLER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_URI_HANDLER, GstURIHandlerClass))
#define GST_IS_URI_HANDLER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_URI_HANDLER))
#define GST_URI_HANDLER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_URI_HANDLER, GstURIHandlerClass))
typedef struct _GstURIHandler GstURIHandler;
typedef struct _GstURIHandlerClass GstURIHandlerClass;
struct _GstURIHandler {
GstPluginFeature feature;
gchar *uri; /* The uri that is described */
gchar *longdesc; /* description of the uri */
gchar *element; /* The element that can handle this uri */
gchar *property; /* The property on the element to set the uri */
};
struct _GstURIHandlerClass {
GstPluginFeatureClass parent;
};
GType gst_uri_handler_get_type (void);
GstURIHandler* gst_uri_handler_new (const gchar *name,
const gchar *uri, const gchar *longdesc,
const gchar *element, gchar *property);
void gst_uri_handler_destroy (GstURIHandler *factory);
GstURIHandler* gst_uri_handler_find (const gchar *name);
GstURIHandler* gst_uri_handler_find_by_uri (const gchar *uri);
GstElement* gst_uri_handler_create (GstURIHandler *factory, const gchar *name);
GstElement* gst_uri_handler_make_by_uri (const gchar *uri, const gchar *name);
G_END_DECLS
#endif /* __GST_SCHEDULER_H__ */
......@@ -34,6 +34,7 @@
#include <gst/gsttype.h>
#include <gst/gstscheduler.h>
#include <gst/gstautoplug.h>
#include <gst/gsturi.h>
#include "gstxmlregistry.h"
......@@ -769,6 +770,30 @@ gst_xml_registry_parse_index_factory (GMarkupParseContext *context, const gchar
return TRUE;
}
static gboolean
gst_xml_registry_parse_uri_handler (GMarkupParseContext *context, const gchar *tag, const gchar *text,
gsize text_len, GstXMLRegistry *registry, GError **error)
{
GstURIHandler *handler = GST_URI_HANDLER (registry->current_feature);
if (!strcmp (tag, "name")) {
registry->current_feature->name = g_strndup (text, text_len);
}
else if (!strcmp (tag, "uri")) {
handler->uri = g_strndup (text, text_len);
}
else if (!strcmp (tag, "longdesc")) {
handler->longdesc = g_strndup (text, text_len);
}
else if (!strcmp (tag, "element")) {
handler->element = g_strndup (text, text_len);
}
else if (!strcmp (tag, "property")) {
handler->property = g_strndup (text, text_len);
}
return TRUE;
}
static gboolean
gst_xml_registry_parse_padtemplate (GMarkupParseContext *context, const gchar *tag, const gchar *text,
gsize text_len, GstXMLRegistry *registry, GError **error)
......@@ -865,6 +890,7 @@ gst_xml_registry_start_element (GMarkupParseContext *context,
}
if (feature) {
xmlregistry->current_feature = feature;
if (GST_IS_ELEMENT_FACTORY (feature)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
......@@ -873,17 +899,24 @@ gst_xml_registry_start_element (GMarkupParseContext *context,
factory->padtemplates = NULL;
factory->rank = 0;
xmlregistry->parser = gst_xml_registry_parse_element_factory;
break;
}
else if (GST_IS_TYPE_FACTORY (feature))
else if (GST_IS_TYPE_FACTORY (feature)) {
xmlregistry->parser = gst_xml_registry_parse_type_factory;
}
else if (GST_IS_SCHEDULER_FACTORY (feature)) {
xmlregistry->parser = gst_xml_registry_parse_scheduler_factory;
GST_SCHEDULER_FACTORY (feature)->type = 0;
}
else if (GST_IS_AUTOPLUG_FACTORY (feature))
else if (GST_IS_AUTOPLUG_FACTORY (feature)) {
xmlregistry->parser = gst_xml_registry_parse_autoplug_factory;
else if (GST_IS_INDEX_FACTORY (feature))
}
else if (GST_IS_INDEX_FACTORY (feature)) {
xmlregistry->parser = gst_xml_registry_parse_index_factory;
}
else if (GST_IS_URI_HANDLER (feature)) {
xmlregistry->parser = gst_xml_registry_parse_uri_handler;
}
else {
g_warning ("unkown feature type");
}
......@@ -1411,6 +1444,14 @@ gst_xml_registry_save_feature (GstXMLRegistry *xmlregistry, GstPluginFeature *fe
else if (GST_IS_INDEX_FACTORY (feature)) {
PUT_ESCAPED ("longdesc", GST_INDEX_FACTORY (feature)->longdesc);
}
else if (GST_IS_URI_HANDLER (feature)) {
GstURIHandler *handler = GST_URI_HANDLER (feature);
PUT_ESCAPED ("uri", handler->uri);
PUT_ESCAPED ("longdesc", handler->longdesc);
PUT_ESCAPED ("element", handler->element);
PUT_ESCAPED ("property", handler->property);
}
return TRUE;
}
......
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