/* * gst-editing-services * Copyright (C) <2013> Thibault Saunier * <2013> Collabora Ltd. * * gst-editing-services is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * gst-editing-services 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see . */ #ifndef _GES_TIMELINE_ELEMENT_H_ #define _GES_TIMELINE_ELEMENT_H_ #include #include #include "ges-enums.h" #include "ges-types.h" G_BEGIN_DECLS #define GES_TYPE_TIMELINE_ELEMENT (ges_timeline_element_get_type ()) #define GES_TIMELINE_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TIMELINE_ELEMENT, GESTimelineElement)) #define GES_TIMELINE_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TIMELINE_ELEMENT, GESTimelineElementClass)) #define GES_IS_TIMELINE_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TIMELINE_ELEMENT)) #define GES_IS_TIMELINE_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TIMELINE_ELEMENT)) #define GES_TIMELINE_ELEMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TIMELINE_ELEMENT, GESTimelineElementClass)) typedef struct _GESTimelineElementPrivate GESTimelineElementPrivate; /** * GES_TIMELINE_ELEMENT_START: * @obj: a #GESTimelineElement * * The start position of the object (in nanoseconds). */ #define GES_TIMELINE_ELEMENT_START(obj) (((GESTimelineElement*)obj)->start) /** * GES_TIMELINE_ELEMENT_END: * @obj: a #GESTimelineElement * * The end position of the object (in nanoseconds). */ #define GES_TIMELINE_ELEMENT_END(obj) ((((GESTimelineElement*)obj)->start) + (((GESTimelineElement*)obj)->duration)) /** * GES_TIMELINE_ELEMENT_INPOINT: * @obj: a #GESTimelineElement * * The in-point of the object (in nanoseconds). */ #define GES_TIMELINE_ELEMENT_INPOINT(obj) (((GESTimelineElement*)obj)->inpoint) /** * GES_TIMELINE_ELEMENT_DURATION: * @obj: a #GESTimelineElement * * The duration of the object (in nanoseconds). */ #define GES_TIMELINE_ELEMENT_DURATION(obj) (((GESTimelineElement*)obj)->duration) /** * GES_TIMELINE_ELEMENT_MAX_DURATION: * @obj: a #GESTimelineElement * * The maximun duration of the object (in nanoseconds). */ #define GES_TIMELINE_ELEMENT_MAX_DURATION(obj) (((GESTimelineElement*)obj)->maxduration) /** * GES_TIMELINE_ELEMENT_PRIORITY: * @obj: a #GESTimelineElement * * The priority of the object. */ #define GES_TIMELINE_ELEMENT_PRIORITY(obj) (((GESTimelineElement*)obj)->priority) /** * GES_TIMELINE_ELEMENT_PARENT: * @obj: a #GESTimelineElement * * The parent of the object. */ #define GES_TIMELINE_ELEMENT_PARENT(obj) (((GESTimelineElement*)obj)->parent) /** * GES_TIMELINE_ELEMENT_TIMELINE: * @obj: a #GESTimelineElement * * The timeline in which the object is. */ #define GES_TIMELINE_ELEMENT_TIMELINE(obj) (((GESTimelineElement*)obj)->timeline) /** * GES_TIMELINE_ELEMENT_NAME: * @obj: a #GESTimelineElement * * The name of the object. */ #define GES_TIMELINE_ELEMENT_NAME(obj) (((GESTimelineElement*)obj)->name) /** * GESTimelineElement: * @parent: The #GESTimelineElement that controls the object * @asset: The #GESAsset from which the object has been extracted * @start: position (in time) of the object * @inpoint: Position in the media from which the object should be used * @duration: duration of the object to be used * @maxduration: The maximum duration the object can have * @priority: priority of the object in the layer (0:top priority) * * Those filed can be accessed from outside but in no case should * be changed from there. Subclasses can write them but should make * sure to properly call g_object_notify. */ struct _GESTimelineElement { GInitiallyUnowned parent_instance; /*< public > */ /*< read only >*/ GESTimelineElement *parent; GESAsset *asset; GstClockTime start; GstClockTime inpoint; GstClockTime duration; GstClockTime maxduration; guint32 priority; GESTimeline *timeline; gchar *name; /*< private >*/ GESTimelineElementPrivate *priv; /* Padding for API extension */ gpointer _ges_reserved[GES_PADDING_LARGE]; }; /** * GESTimelineElementClass: * @set_parent: method to set the parent of a #GESTimelineElement. * @set_start: method to set the start of a #GESTimelineElement * @set_duration: method to set the duration of a #GESTimelineElement * @set_inpoint: method to set the inpoint of a #GESTimelineElement * @set_max_duration: method to set the maximun duration of a #GESTimelineElement * @set_priority: method to set the priority of a #GESTimelineElement * @ripple: method to ripple an object * @ripple_end: method to ripple an object on its #GES_EDGE_END edge * @roll_start: method to roll an object on its #GES_EDGE_START edge * @roll_end: method to roll an object on its #GES_EDGE_END edge * @trim: method to trim an object * @deep_copy: Copy the children properties of @self into @copy * * The GESTimelineElement base class. Subclasses should override at least * @set_start @set_inpoint @set_duration @ripple @ripple_end @roll_start * @roll_end and @trim. * * Vmethods in subclasses should apply all the operation they need to but * the real method implementation is in charge of setting the proper field, * and emit the notify signal. */ struct _GESTimelineElementClass { GInitiallyUnownedClass parent_class; /*< public > */ gboolean (*set_parent) (GESTimelineElement * self, GESTimelineElement *parent); gboolean (*set_start) (GESTimelineElement * self, GstClockTime start); gboolean (*set_inpoint) (GESTimelineElement * self, GstClockTime inpoint); gboolean (*set_duration) (GESTimelineElement * self, GstClockTime duration); gboolean (*set_max_duration) (GESTimelineElement * self, GstClockTime maxduration); gboolean (*set_priority) (GESTimelineElement * self, guint32 priority); gboolean (*ripple) (GESTimelineElement *self, guint64 start); gboolean (*ripple_end) (GESTimelineElement *self, guint64 end); gboolean (*roll_start) (GESTimelineElement *self, guint64 start); gboolean (*roll_end) (GESTimelineElement *self, guint64 end); gboolean (*trim) (GESTimelineElement *self, guint64 start); void (*deep_copy) (GESTimelineElement *self, GESTimelineElement *copy); GParamSpec** (*list_children_properties) (GESTimelineElement * self, guint *n_properties); gboolean (*lookup_child) (GESTimelineElement *self, const gchar *prop_name, GObject **child, GParamSpec **pspec); /*< private > */ /* Padding for API extension */ gpointer _ges_reserved[GES_PADDING_LARGE - 2]; }; GType ges_timeline_element_get_type (void) G_GNUC_CONST; GESTimelineElement * ges_timeline_element_get_toplevel_parent (GESTimelineElement *self); GESTimelineElement * ges_timeline_element_get_parent (GESTimelineElement * self); gboolean ges_timeline_element_set_parent (GESTimelineElement *self, GESTimelineElement *parent); gboolean ges_timeline_element_set_timeline (GESTimelineElement *self, GESTimeline *timeline); void ges_timeline_element_set_start (GESTimelineElement *self, GstClockTime start); void ges_timeline_element_set_inpoint (GESTimelineElement *self, GstClockTime inpoint); void ges_timeline_element_set_duration (GESTimelineElement *self, GstClockTime duration); void ges_timeline_element_set_max_duration (GESTimelineElement *self, GstClockTime maxduration); void ges_timeline_element_set_priority (GESTimelineElement *self, guint32 priority); GstClockTime ges_timeline_element_get_start (GESTimelineElement *self); GstClockTime ges_timeline_element_get_inpoint (GESTimelineElement *self); GstClockTime ges_timeline_element_get_duration (GESTimelineElement *self); GstClockTime ges_timeline_element_get_max_duration (GESTimelineElement *self); GESTimeline * ges_timeline_element_get_timeline (GESTimelineElement *self); guint32 ges_timeline_element_get_priority (GESTimelineElement *self); gboolean ges_timeline_element_ripple (GESTimelineElement *self, GstClockTime start); gboolean ges_timeline_element_ripple_end (GESTimelineElement *self, GstClockTime end); gboolean ges_timeline_element_roll_start (GESTimelineElement *self, GstClockTime start); gboolean ges_timeline_element_roll_end (GESTimelineElement *self, GstClockTime end); gboolean ges_timeline_element_trim (GESTimelineElement *self, GstClockTime start); GESTimelineElement * ges_timeline_element_copy (GESTimelineElement *self, gboolean deep); gchar * ges_timeline_element_get_name (GESTimelineElement *self); gboolean ges_timeline_element_set_name (GESTimelineElement *self, const gchar *name); GParamSpec ** ges_timeline_element_list_children_properties (GESTimelineElement *self, guint *n_properties); gboolean ges_timeline_element_lookup_child (GESTimelineElement *self, const gchar *prop_name, GObject **child, GParamSpec **pspec); void ges_timeline_element_get_child_property_by_pspec (GESTimelineElement * self, GParamSpec * pspec, GValue * value); void ges_timeline_element_get_child_property_valist (GESTimelineElement * self, const gchar * first_property_name, va_list var_args); void ges_timeline_element_get_child_properties (GESTimelineElement *self, const gchar * first_property_name, ...) G_GNUC_NULL_TERMINATED; void ges_timeline_element_set_child_property_valist (GESTimelineElement * self, const gchar * first_property_name, va_list var_args); void ges_timeline_element_set_child_property_by_pspec (GESTimelineElement * self, GParamSpec * pspec, GValue * value); void ges_timeline_element_set_child_properties (GESTimelineElement * self, const gchar * first_property_name, ...) G_GNUC_NULL_TERMINATED; gboolean ges_timeline_element_set_child_property (GESTimelineElement *self, const gchar *property_name, GValue * value); gboolean ges_timeline_element_get_child_property (GESTimelineElement *self, const gchar *property_name, GValue * value); gboolean ges_timeline_element_add_child_property (GESTimelineElement * self, GParamSpec *pspec, GObject *child); gboolean ges_timeline_element_remove_child_property(GESTimelineElement * self, GParamSpec *pspec); G_END_DECLS #endif /* _GES_TIMELINE_ELEMENT_H_ */