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/* GStreamer
* Copyright (C) 2012 Olivier Crete <olivier.crete@collabora.com>
*
* gstdeviceprovider.h: Device probing and monitoring
*
* 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.
*/
#include <gst/gstdeviceproviderfactory.h>
#ifndef __GST_DEVICE_PROVIDER_H__
#define __GST_DEVICE_PROVIDER_H__
#include <gst/gstelement.h>
G_BEGIN_DECLS
typedef struct _GstDeviceProvider GstDeviceProvider;
typedef struct _GstDeviceProviderClass GstDeviceProviderClass;
typedef struct _GstDeviceProviderPrivate GstDeviceProviderPrivate;
#define GST_TYPE_DEVICE_PROVIDER (gst_device_provider_get_type())
#define GST_IS_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEVICE_PROVIDER))
#define GST_IS_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEVICE_PROVIDER))
#define GST_DEVICE_PROVIDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEVICE_PROVIDER, GstDeviceProviderClass))
#define GST_DEVICE_PROVIDER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEVICE_PROVIDER, GstDeviceProvider))
#define GST_DEVICE_PROVIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEVICE_PROVIDER, GstDeviceProviderClass))
#define GST_DEVICE_PROVIDER_CAST(obj) ((GstDeviceProvider *)(obj))
/**
* GstDeviceProvider:
* @parent: The parent #GstObject
* @devices: a #GList of the #GstDevice objects
*
* The structure of the base #GstDeviceProvider
*
* Since: 1.4
*/
struct _GstDeviceProvider {
GstObject parent;
/* Protected by the Object lock */
GList *devices;
/*< private >*/
GstDeviceProviderPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstDeviceProviderClass:
* @parent_class: the parent #GstObjectClass structure
* @factory: a pointer to the #GstDeviceProviderFactory that creates this
* provider
* @probe: Returns a list of devices that are currently available.
* This should never block.
* @start: Starts monitoring for new devices. Only subclasses that can know
* that devices have been added or remove need to implement this method.
* @stop: Stops monitoring for new devices. Only subclasses that implement
* the start() method need to implement this method.
*
* The structure of the base #GstDeviceProviderClass
*
* Since: 1.4
*/
struct _GstDeviceProviderClass {
GstObjectClass parent_class;
GstDeviceProviderFactory *factory;
GList* (*probe) (GstDeviceProvider * provider);
gboolean (*start) (GstDeviceProvider * provider);
void (*stop) (GstDeviceProvider * provider);
/*< private >*/
gpointer metadata;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_device_provider_get_type (void);
GList * gst_device_provider_get_devices (GstDeviceProvider * provider);
gboolean gst_device_provider_start (GstDeviceProvider * provider);
void gst_device_provider_stop (GstDeviceProvider * provider);
gboolean gst_device_provider_can_monitor (GstDeviceProvider * provider);
GstBus * gst_device_provider_get_bus (GstDeviceProvider * provider);
void gst_device_provider_device_add (GstDeviceProvider * provider,
GstDevice * device);
void gst_device_provider_device_remove (GstDeviceProvider * provider,
GstDevice * device);
/* device provider class meta data */
void gst_device_provider_class_set_metadata (GstDeviceProviderClass *klass,
const gchar *longname,
const gchar *classification,
const gchar *description,
const gchar *author);
void gst_device_provider_class_set_static_metadata (GstDeviceProviderClass *klass,
const gchar *longname,
const gchar *classification,
const gchar *description,
const gchar *author);
void gst_device_provider_class_add_metadata (GstDeviceProviderClass * klass,
const gchar * key, const gchar * value);
void gst_device_provider_class_add_static_metadata (GstDeviceProviderClass * klass,
const gchar * key, const gchar * value);
const gchar * gst_device_provider_class_get_metadata (GstDeviceProviderClass * klass,
const gchar * key);
/* factory management */
GstDeviceProviderFactory * gst_device_provider_get_factory (GstDeviceProvider * provider);
G_END_DECLS
#endif /* __GST_DEVICE_PROVIDER_H__ */
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