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>
32 GQuark gst_uri_error_quark (void);
37 * Get access to the error quark of the uri subsystem.
39 #define GST_URI_ERROR gst_uri_error_quark ()
43 * @GST_URI_ERROR_BAD_PROTOCOL: The protocol is not supported
44 * @GST_URI_ERROR_BAD_URI: There was a problem with the URI
45 * @GST_URI_ERROR_BAD_STATE: Could not set or change the URI because the
46 * URI handler was in a state where that is not possible or not permitted
47 * @GST_URI_ERROR_BAD_REFERENCE: There was a problem with the entity that
50 * Different URI-related errors that can occur.
54 GST_URI_ERROR_BAD_PROTOCOL,
55 GST_URI_ERROR_BAD_URI,
56 GST_URI_ERROR_BAD_STATE,
57 GST_URI_ERROR_BAD_REFERENCE
62 * @GST_URI_UNKNOWN: The URI direction is unknown
63 * @GST_URI_SINK: The URI is a consumer.
64 * @GST_URI_SRC: The URI is a producer.
66 * The different types of URI direction.
76 * GST_URI_TYPE_IS_VALID:
77 * @type: A #GstURIType
79 * Tests if the type direction is valid.
81 #define GST_URI_TYPE_IS_VALID(type) ((type) == GST_URI_SRC || (type) == GST_URI_SINK)
83 /* uri handler functions */
84 #define GST_TYPE_URI_HANDLER (gst_uri_handler_get_type ())
85 #define GST_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_URI_HANDLER, GstURIHandler))
86 #define GST_IS_URI_HANDLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_URI_HANDLER))
87 #define GST_URI_HANDLER_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_URI_HANDLER, GstURIHandlerInterface))
92 * Opaque #GstURIHandler structure.
94 typedef struct _GstURIHandler GstURIHandler;
95 typedef struct _GstURIHandlerInterface GstURIHandlerInterface;
98 * GstURIHandlerInterface:
99 * @parent: The parent interface type
100 * @get_type: Method to tell whether the element handles source or sink URI.
101 * @get_protocols: Method to return the list of protocols handled by the element.
102 * @get_uri: Method to return the URI currently handled by the element.
103 * @set_uri: Method to set a new URI.
105 * Any #GstElement using this interface should implement these methods.
107 struct _GstURIHandlerInterface {
108 GTypeInterface parent;
112 /* querying capabilities */
113 GstURIType (* get_type) (GType type);
114 const gchar * const * (* get_protocols) (GType type);
116 /* using the interface */
117 gchar * (* get_uri) (GstURIHandler * handler);
118 gboolean (* set_uri) (GstURIHandler * handler,
123 /* general URI functions */
125 gboolean gst_uri_protocol_is_valid (const gchar * protocol);
126 gboolean gst_uri_protocol_is_supported (const GstURIType type,
127 const gchar *protocol);
128 gboolean gst_uri_is_valid (const gchar * uri);
129 gchar * gst_uri_get_protocol (const gchar * uri) G_GNUC_MALLOC;
130 gboolean gst_uri_has_protocol (const gchar * uri,
131 const gchar * protocol);
132 gchar * gst_uri_get_location (const gchar * uri) G_GNUC_MALLOC;
133 gchar * gst_uri_construct (const gchar * protocol,
134 const gchar * location) G_GNUC_MALLOC;
136 gchar * gst_filename_to_uri (const gchar * filename,
137 GError ** error) G_GNUC_MALLOC;
139 GstElement * gst_element_make_from_uri (const GstURIType type,
141 const gchar * elementname) G_GNUC_MALLOC;
143 /* accessing the interface */
144 GType gst_uri_handler_get_type (void);
146 GstURIType gst_uri_handler_get_uri_type (GstURIHandler * handler);
147 const gchar * const * gst_uri_handler_get_protocols (GstURIHandler * handler);
148 gchar * gst_uri_handler_get_uri (GstURIHandler * handler) G_GNUC_MALLOC;
149 gboolean gst_uri_handler_set_uri (GstURIHandler * handler,
155 #endif /* __GST_URI_H__ */