| /* GStreamer |
| * Copyright (C) 2012 Olivier Crete <olivier.crete@collabora.com> |
| * |
| * gstdevice.c: Device discovery |
| * |
| * 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_DEVICE_H__ |
| #define __GST_DEVICE_H__ |
| |
| typedef struct _GstDevice GstDevice; |
| typedef struct _GstDeviceClass GstDeviceClass; |
| |
| #include <gst/gstelement.h> |
| #include <gst/gstcaps.h> |
| |
| |
| G_BEGIN_DECLS |
| |
| typedef struct _GstDevicePrivate GstDevicePrivate; |
| |
| #define GST_TYPE_DEVICE (gst_device_get_type()) |
| #define GST_IS_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEVICE)) |
| #define GST_IS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEVICE)) |
| #define GST_DEVICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEVICE, GstDeviceClass)) |
| #define GST_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEVICE, GstDevice)) |
| #define GST_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstDeviceClass)) |
| #define GST_DEVICE_CAST(obj) ((GstDevice *)(obj)) |
| |
| /** |
| * GstDevice: |
| * @parent: The parent #GstObject strucuture. |
| * |
| * A device object. |
| * |
| * Since: 1.4 |
| */ |
| |
| struct _GstDevice { |
| GstObject parent; |
| |
| /*< private >*/ |
| GstDevicePrivate *priv; |
| |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| /** |
| * GstDeviceClass: |
| * @parent_class: The parent #GstObjectClass strucuture. |
| * @create_element: Creates the fully configured element to access this device. |
| * Subclasses need to override this and return a new element. |
| * @reconfigure_element: This only needs to be implemented by subclasses if the |
| * element can be reconfigured to use a different device. See the documentation |
| * for gst_device_reconfigure_element(). |
| * |
| * The class structure for a #GstDevice object. |
| * |
| * Since: 1.4 |
| */ |
| |
| struct _GstDeviceClass { |
| GstObjectClass parent_class; |
| |
| GstElement * (*create_element) (GstDevice * device, const gchar * name); |
| gboolean (*reconfigure_element) (GstDevice * device, GstElement * element); |
| |
| /*< private >*/ |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| GType gst_device_get_type (void); |
| |
| GstElement * gst_device_create_element (GstDevice * device, const gchar * name); |
| |
| GstCaps * gst_device_get_caps (GstDevice * device); |
| gchar * gst_device_get_display_name (GstDevice * device); |
| gchar * gst_device_get_device_class (GstDevice * device); |
| GstStructure * gst_device_get_properties (GstDevice * device); |
| gboolean gst_device_reconfigure_element (GstDevice * device, |
| GstElement * element); |
| |
| gboolean gst_device_has_classesv (GstDevice * device, |
| gchar ** classes); |
| |
| gboolean gst_device_has_classes (GstDevice * device, |
| const gchar * classes); |
| |
| |
| G_END_DECLS |
| |
| #endif /* __GST_DEVICE_H__ */ |