2 * Copyright (C) 2012 Olivier Crete <olivier.crete@collabora.com>
4 * gstdevice.c: Device discovery
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
23 #ifndef __GST_DEVICE_H__
24 #define __GST_DEVICE_H__
26 typedef struct _GstDevice GstDevice;
27 typedef struct _GstDeviceClass GstDeviceClass;
29 #include <gst/gstelement.h>
30 #include <gst/gstcaps.h>
35 typedef struct _GstDevicePrivate GstDevicePrivate;
37 #define GST_TYPE_DEVICE (gst_device_get_type())
38 #define GST_IS_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEVICE))
39 #define GST_IS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEVICE))
40 #define GST_DEVICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEVICE, GstDeviceClass))
41 #define GST_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEVICE, GstDevice))
42 #define GST_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstDeviceClass))
43 #define GST_DEVICE_CAST(obj) ((GstDevice *)(obj))
47 * @parent: The parent #GstObject strucuture.
58 GstDevicePrivate *priv;
60 gpointer _gst_reserved[GST_PADDING];
65 * @parent_class: The parent #GstObjectClass strucuture.
66 * @create_element: Creates the fully configured element to access this device.
67 * Subclasses need to override this and return a new element.
68 * @reconfigure_element: This only needs to be implemented by subclasses if the
69 * element can be reconfigured to use a different device. See the documentation
70 * for gst_device_reconfigure_element().
72 * The class structure for a #GstDevice object.
77 struct _GstDeviceClass {
78 GstObjectClass parent_class;
80 GstElement * (*create_element) (GstDevice * device, const gchar * name);
81 gboolean (*reconfigure_element) (GstDevice * device, GstElement * element);
84 gpointer _gst_reserved[GST_PADDING];
87 GType gst_device_get_type (void);
89 GstElement * gst_device_create_element (GstDevice * device, const gchar * name);
91 GstCaps * gst_device_get_caps (GstDevice * device);
92 gchar * gst_device_get_display_name (GstDevice * device);
93 gchar * gst_device_get_device_class (GstDevice * device);
94 GstStructure * gst_device_get_properties (GstDevice * device);
95 gboolean gst_device_reconfigure_element (GstDevice * device,
96 GstElement * element);
98 gboolean gst_device_has_classesv (GstDevice * device,
101 gboolean gst_device_has_classes (GstDevice * device,
102 const gchar * classes);
107 #endif /* __GST_DEVICE_H__ */