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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4c26b89e3c
This property was firstly added to TrackFileSource, but in the end, it makes more sense for it to be directly in TrackOject as it can be usefull in other cases.
231 lines
8.7 KiB
C
231 lines
8.7 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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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 _GES_TRACK_OBJECT
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#define _GES_TRACK_OBJECT
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#include <glib-object.h>
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#include <gst/gst.h>
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#include <ges/ges-types.h>
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#include <ges/ges-timeline-object.h>
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#include <ges/ges-track.h>
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G_BEGIN_DECLS
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#define GES_TYPE_TRACK_OBJECT ges_track_object_get_type()
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#define GES_TRACK_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TRACK_OBJECT, GESTrackObject))
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#define GES_TRACK_OBJECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TRACK_OBJECT, GESTrackObjectClass))
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#define GES_IS_TRACK_OBJECT(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TRACK_OBJECT))
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#define GES_IS_TRACK_OBJECT_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TRACK_OBJECT))
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#define GES_TRACK_OBJECT_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TRACK_OBJECT, GESTrackObjectClass))
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/**
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* GES_TRACK_OBJECT_START:
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* @obj: a #GESTrackObject
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*
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* The start position of the object (in nanoseconds).
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*/
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#define GES_TRACK_OBJECT_START(obj) (((GESTrackObject*)obj)->start)
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/**
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* GES_TRACK_OBJECT_INPOINT:
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* @obj: a #GESTrackObject
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*
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* The in-point of the object (in nanoseconds).
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*/
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#define GES_TRACK_OBJECT_INPOINT(obj) (((GESTrackObject*)obj)->inpoint)
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/**
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* GES_TRACK_OBJECT_DURATION:
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* @obj: a #GESTrackObject
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*
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* The duration position of the object (in nanoseconds).
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*/
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#define GES_TRACK_OBJECT_DURATION(obj) (((GESTrackObject*)obj)->duration)
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typedef struct _GESTrackObjectPrivate GESTrackObjectPrivate;
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/**
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* GESTrackObject:
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*
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* The GESTrackObject base class.
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*/
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struct _GESTrackObject {
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GInitiallyUnowned parent;
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/*< private >*/
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guint64 start;
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guint64 inpoint;
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guint64 duration;
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guint32 priority;
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gboolean active;
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GESTrackObjectPrivate *priv;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING];
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};
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/**
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* GESTrackObjectClass:
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* @gnlobject_factorytype: name of the GNonLin GStElementFactory type to use.
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* @create_gnl_object: method to create the GNonLin container object.
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* @create_element: method to return the GstElement to put in the gnlobject.
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* @start_changed: start property of gnlobject has changed
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* @media_start_changed: media-start property of gnlobject has changed
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* @duration_changed: duration property glnobject has changed
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* @gnl_priority_changed: duration property glnobject has changed
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* @active_changed: active property of gnlobject has changed
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* @get_props_hastable: method to list children properties that user could like
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* to configure. Since: 0.10.2
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* @list_children_properties: method to get children properties that user could
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* like to configure.
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* The default implementation will create an object
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* of type @gnlobject_factorytype and call
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* @create_element. Since: 0.10.2
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*
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* Subclasses can override the @create_gnl_object method to override what type
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* of GNonLin object will be created.
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*/
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struct _GESTrackObjectClass {
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/*< private >*/
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GInitiallyUnownedClass parent_class;
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/*< public >*/
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/* virtual methods for subclasses */
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const gchar *gnlobject_factorytype;
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GstElement* (*create_gnl_object) (GESTrackObject * object);
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GstElement* (*create_element) (GESTrackObject * object);
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void (*start_changed) (GESTrackObject *object, guint64 start);
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void (*media_start_changed) (GESTrackObject *object, guint64 media_start);
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void (*gnl_priority_changed) (GESTrackObject *object, guint priority);
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void (*duration_changed) (GESTrackObject *object, guint64 duration);
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void (*active_changed) (GESTrackObject *object, gboolean active);
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/*< private >*/
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/* signals (currently unused) */
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void (*changed) (GESTrackObject * object);
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/*< public >*/
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/* virtual methods for subclasses */
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GHashTable* (*get_props_hastable) (GESTrackObject * object);
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GParamSpec** (*list_children_properties) (GESTrackObject * object,
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guint *n_properties);
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/*< private >*/
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING - 2];
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};
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GType ges_track_object_get_type (void);
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gboolean ges_track_object_set_track (GESTrackObject * object,
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GESTrack * track);
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GESTrack* ges_track_object_get_track (GESTrackObject * object);
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void ges_track_object_set_timeline_object (GESTrackObject * object,
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GESTimelineObject * tlobject);
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GESTimelineObject *
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ges_track_object_get_timeline_object (GESTrackObject* object);
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GstElement * ges_track_object_get_gnlobject (GESTrackObject * object);
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GstElement * ges_track_object_get_element (GESTrackObject * object);
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void ges_track_object_set_locked (GESTrackObject * object,
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gboolean locked);
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gboolean ges_track_object_is_locked (GESTrackObject * object);
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void ges_track_object_set_start (GESTrackObject * object,
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guint64 start);
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void ges_track_object_set_inpoint (GESTrackObject * object,
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guint64 inpoint);
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void ges_track_object_set_duration (GESTrackObject * object,
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guint64 duration);
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void ges_track_object_set_max_duration (GESTrackObject * object,
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guint64 maxduration);
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void ges_track_object_set_priority (GESTrackObject * object,
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guint32 priority);
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gboolean ges_track_object_set_active (GESTrackObject * object,
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gboolean active);
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guint64 ges_track_object_get_start (GESTrackObject * object);
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guint64 ges_track_object_get_inpoint (GESTrackObject * object);
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guint64 ges_track_object_get_duration (GESTrackObject * object);
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guint64 ges_track_object_get_max_duration (GESTrackObject * object);
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guint32 ges_track_object_get_priority (GESTrackObject * object);
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gboolean ges_track_object_is_active (GESTrackObject * object);
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GParamSpec **
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ges_track_object_list_children_properties (GESTrackObject *object,
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guint *n_properties);
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gboolean ges_track_object_lookup_child (GESTrackObject *object,
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const gchar *prop_name,
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GstElement **element,
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GParamSpec **pspec);
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void
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ges_track_object_get_child_property_by_pspec (GESTrackObject * object,
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GParamSpec * pspec,
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GValue * value);
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void
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ges_track_object_get_child_property_valist (GESTrackObject * object,
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const gchar * first_property_name,
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va_list var_args);
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void ges_track_object_get_child_property (GESTrackObject *object,
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const gchar * first_property_name,
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...) G_GNUC_NULL_TERMINATED;
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void
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ges_track_object_set_child_property_valist (GESTrackObject * object,
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const gchar * first_property_name,
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va_list var_args);
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void
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ges_track_object_set_child_property_by_pspec (GESTrackObject * object,
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GParamSpec * pspec,
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GValue * value);
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void ges_track_object_set_child_property (GESTrackObject * object,
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const gchar * first_property_name,
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...) G_GNUC_NULL_TERMINATED;
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G_END_DECLS
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#endif /* _GES_TRACK_OBJECT */
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