gstreamer/ges/ges-track-object.h
2011-05-06 19:36:35 +02:00

208 lines
7.4 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* 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 _GES_TRACK_OBJECT
#define _GES_TRACK_OBJECT
#include <glib-object.h>
#include <gst/gst.h>
#include <ges/ges-types.h>
#include <ges/ges-timeline-object.h>
#include <ges/ges-track.h>
G_BEGIN_DECLS
#define GES_TYPE_TRACK_OBJECT ges_track_object_get_type()
#define GES_TRACK_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TRACK_OBJECT, GESTrackObject))
#define GES_TRACK_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TRACK_OBJECT, GESTrackObjectClass))
#define GES_IS_TRACK_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TRACK_OBJECT))
#define GES_IS_TRACK_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TRACK_OBJECT))
#define GES_TRACK_OBJECT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TRACK_OBJECT, GESTrackObjectClass))
/**
* GES_TRACK_OBJECT_START:
* @obj: a #GESTrackObject
*
* The start position of the object (in nanoseconds).
*/
#define GES_TRACK_OBJECT_START(obj) (((GESTrackObject*)obj)->start)
/**
* GES_TRACK_OBJECT_INPOINT:
* @obj: a #GESTrackObject
*
* The in-point of the object (in nanoseconds).
*/
#define GES_TRACK_OBJECT_INPOINT(obj) (((GESTrackObject*)obj)->inpoint)
/**
* GES_TRACK_OBJECT_DURATION:
* @obj: a #GESTrackObject
*
* The duration position of the object (in nanoseconds).
*/
#define GES_TRACK_OBJECT_DURATION(obj) (((GESTrackObject*)obj)->duration)
typedef struct _GESTrackObjectPrivate GESTrackObjectPrivate;
/**
* GESTrackObject:
*
* The GESTrackObject base class.
*/
struct _GESTrackObject {
GInitiallyUnowned parent;
/*< private >*/
guint64 start;
guint64 inpoint;
guint64 duration;
guint32 priority;
gboolean active;
GESTrackObjectPrivate *priv;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
/**
* GESTrackObjectClass:
* @gnlobject_factorytype: name of the GNonLin GStElementFactory type to use.
* @create_gnl_object: method to create the GNonLin container object.
* @get_props_hastable: method to list children properties that user could like
* to configure.
* @list_children_properties: method to get children properties that user could
* like to configure.
* The default implementation will create an object
* of type @gnlobject_factorytype and call
* @create_element.
* @create_element: method to return the GstElement to put in the gnlobject.
* @start_changed: start property of gnlobject has changed
* @media_start_changed: media-start property of gnlobject has changed
* @duration_changed: duration property glnobject has changed
* @gnl_priority_changed: duration property glnobject has changed
* @active_changed: active property of gnlobject has changed
*
* Subclasses can override the @create_gnl_object method to override what type
* of GNonLin object will be created.
*/
struct _GESTrackObjectClass {
/*< private >*/
GInitiallyUnownedClass parent_class;
/*< public >*/
/* virtual methods for subclasses */
const gchar *gnlobject_factorytype;
GstElement* (*create_gnl_object) (GESTrackObject * object);
GstElement* (*create_element) (GESTrackObject * object);
GHashTable* (*get_props_hastable) (GESTrackObject * object);
GParamSpec** (*list_children_properties) (GESTrackObject * object,
guint *n_properties);
void (*start_changed) (GESTrackObject *object, guint64 start);
void (*media_start_changed) (GESTrackObject *object, guint64 media_start);
void (*gnl_priority_changed) (GESTrackObject *object, guint priority);
void (*duration_changed) (GESTrackObject *object, guint64 duration);
void (*active_changed) (GESTrackObject *object, gboolean active);
/*< private >*/
/* signals (currently unused) */
void (*changed) (GESTrackObject * object);
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
GType ges_track_object_get_type (void);
gboolean ges_track_object_set_track (GESTrackObject * object,
GESTrack * track);
GESTrack* ges_track_object_get_track (GESTrackObject * object);
void ges_track_object_set_timeline_object (GESTrackObject * object,
GESTimelineObject * tlobject);
GESTimelineObject *
ges_track_object_get_timeline_object (GESTrackObject* object);
GstElement * ges_track_object_get_gnlobject (GESTrackObject * object);
GstElement * ges_track_object_get_element (GESTrackObject * object);
void ges_track_object_set_locked (GESTrackObject * object,
gboolean locked);
gboolean ges_track_object_is_locked (GESTrackObject * object);
void ges_track_object_set_start (GESTrackObject * object,
guint64 start);
void ges_track_object_set_inpoint (GESTrackObject * object,
guint64 inpoint);
void ges_track_object_set_duration (GESTrackObject * object,
guint64 duration);
void ges_track_object_set_priority (GESTrackObject * object,
guint32 priority);
gboolean ges_track_object_set_active (GESTrackObject * object,
gboolean active);
guint64 ges_track_object_get_start (GESTrackObject * object);
guint64 ges_track_object_get_inpoint (GESTrackObject * object);
guint64 ges_track_object_get_duration (GESTrackObject * object);
guint32 ges_track_object_get_priority (GESTrackObject * object);
gboolean ges_track_object_is_active (GESTrackObject * object);
GParamSpec **
ges_track_object_list_children_properties (GESTrackObject *object,
guint *n_properties);
gboolean ges_track_object_lookup_child (GESTrackObject *object,
const gchar *prop_name,
GstElement **element,
GParamSpec **pspec);
void ges_track_object_get_child_property_by_pspec (GESTrackObject * object,
GParamSpec * pspec,
GValue * value);
void ges_track_object_get_child_property_valist (GESTrackObject * object,
const gchar * first_property_name,
va_list var_args);
void ges_track_object_get_child_property (GESTrackObject *object,
const gchar * first_property_name,
...) G_GNUC_NULL_TERMINATED;
void ges_track_object_set_child_property_valist (GESTrackObject * object,
const gchar * first_property_name,
va_list var_args);
void ges_track_object_set_child_property_by_pspec (GESTrackObject * object,
GParamSpec * pspec,
GValue * value);
void ges_track_object_set_child_property (GESTrackObject * object,
const gchar * first_property_name,
...) G_GNUC_NULL_TERMINATED;
G_END_DECLS
#endif /* _GES_TRACK_OBJECT */