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122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/* GStreamer
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* Copyright (C) 2012 Olivier Crete <olivier.crete@collabora.com>
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*
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* gstdevice.c: Device discovery
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_DEVICE_H__
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#define __GST_DEVICE_H__
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typedef struct _GstDevice GstDevice;
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typedef struct _GstDeviceClass GstDeviceClass;
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#include <gst/gstelement.h>
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#include <gst/gstcaps.h>
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G_BEGIN_DECLS
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typedef struct _GstDevicePrivate GstDevicePrivate;
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#define GST_TYPE_DEVICE (gst_device_get_type())
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#define GST_IS_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEVICE))
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#define GST_IS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEVICE))
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#define GST_DEVICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEVICE, GstDeviceClass))
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#define GST_DEVICE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEVICE, GstDevice))
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#define GST_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE, GstDeviceClass))
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#define GST_DEVICE_CAST(obj) ((GstDevice *)(obj))
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/**
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* GstDevice:
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* @parent: The parent #GstObject structure.
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*
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* A device object.
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*
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* Since: 1.4
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*/
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struct _GstDevice {
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GstObject parent;
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/*< private >*/
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GstDevicePrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstDeviceClass:
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* @parent_class: The parent #GstObjectClass structure.
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* @create_element: Creates the fully configured element to access this device.
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* Subclasses need to override this and return a new element.
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* @reconfigure_element: This only needs to be implemented by subclasses if the
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* element can be reconfigured to use a different device. See the documentation
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* for gst_device_reconfigure_element().
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*
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* The class structure for a #GstDevice object.
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*
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* Since: 1.4
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*/
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struct _GstDeviceClass {
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GstObjectClass parent_class;
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GstElement * (*create_element) (GstDevice * device, const gchar * name);
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gboolean (*reconfigure_element) (GstDevice * device, GstElement * element);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_API
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GType gst_device_get_type (void);
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GST_API
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GstElement * gst_device_create_element (GstDevice * device, const gchar * name);
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GST_API
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GstCaps * gst_device_get_caps (GstDevice * device);
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GST_API
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gchar * gst_device_get_display_name (GstDevice * device);
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GST_API
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gchar * gst_device_get_device_class (GstDevice * device);
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GST_API
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GstStructure * gst_device_get_properties (GstDevice * device);
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GST_API
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gboolean gst_device_reconfigure_element (GstDevice * device,
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GstElement * element);
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GST_API
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gboolean gst_device_has_classesv (GstDevice * device,
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gchar ** classes);
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GST_API
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gboolean gst_device_has_classes (GstDevice * device,
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const gchar * classes);
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstDevice, gst_object_unref)
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#endif
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G_END_DECLS
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#endif /* __GST_DEVICE_H__ */
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