2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gsturi.h: Header for uri to element mappings
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
28 #include <gst/gstelement.h>
29 #include <gst/gstpluginfeature.h>
33 GQuark gst_uri_error_quark (void);
38 * Get access to the error quark of the uri subsystem.
40 #define GST_URI_ERROR gst_uri_error_quark ()
44 * @GST_URI_ERROR_BAD_PROTOCOL: The protocol is not supported
45 * @GST_URI_ERROR_BAD_URI: There was a problem with the URI
46 * @GST_URI_ERROR_BAD_STATE: Could not set or change the URI because the
47 * URI handler was in a state where that is not possible or not permitted
48 * @GST_URI_ERROR_BAD_REFERENCE: There was a problem with the entity that
51 * Different URI-related errors that can occur.
55 GST_URI_ERROR_BAD_PROTOCOL,
56 GST_URI_ERROR_BAD_URI,
57 GST_URI_ERROR_BAD_STATE,
58 GST_URI_ERROR_BAD_REFERENCE
63 * @GST_URI_UNKNOWN : The URI direction is unknown
64 * @GST_URI_SINK : The URI is a consumer.
65 * @GST_URI_SRC : The URI is a producer.
67 * The different types of URI direction.
77 * GST_URI_TYPE_IS_VALID:
78 * @type: A #GstURIType
80 * Tests if the type direction is valid.
82 #define GST_URI_TYPE_IS_VALID(type) ((type) == GST_URI_SRC || (type) == GST_URI_SINK)
84 /* uri handler functions */
85 #define GST_TYPE_URI_HANDLER (gst_uri_handler_get_type ())
86 #define GST_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_URI_HANDLER, GstURIHandler))
87 #define GST_IS_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_URI_HANDLER))
88 #define GST_URI_HANDLER_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_URI_HANDLER, GstURIHandlerInterface))
93 * Opaque #GstURIHandler structure.
95 typedef struct _GstURIHandler GstURIHandler;
96 typedef struct _GstURIHandlerInterface GstURIHandlerInterface;
99 * GstURIHandlerInterface:
100 * @parent: The parent interface type
101 * @get_type: Method to tell whether the element handles source or sink URI.
102 * @get_protocols: Method to return the list of protocols handled by the element.
103 * @get_uri: Method to return the URI currently handled by the element.
104 * @set_uri: Method to set a new URI.
106 * Any #GstElement using this interface should implement these methods.
108 struct _GstURIHandlerInterface {
109 GTypeInterface parent;
113 /* querying capabilities */
114 GstURIType (* get_type) (GType type);
115 gchar ** (* get_protocols) (GType type);
117 /* using the interface */
118 gchar * (* get_uri) (GstURIHandler * handler);
119 gboolean (* set_uri) (GstURIHandler * handler,
124 /* general URI functions */
126 gboolean gst_uri_protocol_is_valid (const gchar * protocol);
127 gboolean gst_uri_protocol_is_supported (const GstURIType type,
128 const gchar *protocol);
129 gboolean gst_uri_is_valid (const gchar * uri);
130 gchar * gst_uri_get_protocol (const gchar * uri);
131 gboolean gst_uri_has_protocol (const gchar * uri,
132 const gchar * protocol);
133 gchar * gst_uri_get_location (const gchar * uri);
134 gchar * gst_uri_construct (const gchar * protocol,
135 const gchar * location);
137 gchar * gst_filename_to_uri (const gchar * filename,
140 GstElement * gst_element_make_from_uri (const GstURIType type,
142 const gchar * elementname);
144 /* accessing the interface */
145 GType gst_uri_handler_get_type (void);
147 guint gst_uri_handler_get_uri_type (GstURIHandler * handler);
148 gchar ** gst_uri_handler_get_protocols (GstURIHandler * handler);
149 gchar * gst_uri_handler_get_uri (GstURIHandler * handler);
150 gboolean gst_uri_handler_set_uri (GstURIHandler * handler,
156 #endif /* __GST_URI_H__ */