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/* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GES_CLIP
#define _GES_CLIP
#include <glib-object.h>
#include <gst/gst.h>
#include <ges/ges-timeline-element.h>
#include <ges/ges-container.h>
#include <ges/ges-types.h>
#include <ges/ges-track.h>
G_BEGIN_DECLS
#define GES_TYPE_CLIP ges_clip_get_type()
#define GES_CLIP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_CLIP, GESClip))
#define GES_CLIP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_CLIP, GESClipClass))
#define GES_IS_CLIP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_CLIP))
#define GES_IS_CLIP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_CLIP))
#define GES_CLIP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_CLIP, GESClipClass))
typedef struct _GESClipPrivate GESClipPrivate;
/**
* GESFillTrackElementFunc:
* @clip: the #GESClip controlling the track elements
* @track_element: the #GESTrackElement
* @gnlobj: the GNonLin object that needs to be filled.
*
* A function that will be called when the GNonLin object of a corresponding
* track element needs to be filled.
*
* The implementer of this function shall add the proper #GstElement to @gnlobj
* using gst_bin_add().
*
* Returns: TRUE if the implementer succesfully filled the @gnlobj, else #FALSE.
*/
typedef gboolean (*GESFillTrackElementFunc) (GESClip *clip, GESTrackElement *track_element,
GstElement *gnlobj);
/**
* GESCreateTrackElementFunc:
* @clip: a #GESClip
* @type: a #GESTrackType
*
* Creates the 'primary' track element for this @clip.
*
* Subclasses should implement this method if they only provide a
* single #GESTrackElement per track.
*
* If the subclass needs to create more than one #GESTrackElement for a
* given track, then it should implement the 'create_track_elements'
* method instead.
*
* The implementer of this function shall return the proper #GESTrackElement
* that should be controlled by @clip for the given @track.
*
* The returned #GESTrackElement will be automatically added to the list
* of objects controlled by the #GESClip.
*
* Returns: the #GESTrackElement to be used, or %NULL if it can't provide one
* for the given @track.
*/
typedef GESTrackElement *(*GESCreateTrackElementFunc) (GESClip * clip, GESTrackType type);
/**
* GESCreateTrackElementsFunc:
* @clip: a #GESClip
* @type: a #GESTrackType
*
* Create all track elements this clip handles for this type of track.
*
* Subclasses should implement this method if they potentially need to
* return more than one #GESTrackElement(s) for a given #GESTrack.
*
* Returns: %TRUE on success %FALSE on failure.
*/
typedef GList * (*GESCreateTrackElementsFunc) (GESClip * clip, GESTrackType type);
/**
* GESClip:
*
* The #GESClip base class.
*/
struct _GESClip
{
GESContainer parent;
/*< private >*/
GESClipPrivate *priv;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING_LARGE];
};
/**
* GESClipClass:
* @create_track_element: method to create a single #GESTrackElement for a given #GESTrack.
* @create_track_elements: method to create multiple #GESTrackElements for a
* #GESTrack.
*
* Subclasses can override the @create_track_element.
*/
struct _GESClipClass
{
/*< private > */
GESContainerClass parent_class;
/*< public > */
GESCreateTrackElementFunc create_track_element;
GESCreateTrackElementsFunc create_track_elements;
/*< private >*/
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING_LARGE];
};
/****************************************************
* Standard *
****************************************************/
GType ges_clip_get_type (void);
/****************************************************
* TrackElement handling *
****************************************************/
GESTrackType ges_clip_get_supported_formats (GESClip *clip);
void ges_clip_set_supported_formats (GESClip *clip, GESTrackType supportedformats);
GESTrackElement* ges_clip_add_asset (GESClip *clip, GESAsset *asset);
GESTrackElement* ges_clip_find_track_element (GESClip *clip, GESTrack *track,
GType type);
/****************************************************
* Layer *
****************************************************/
GESLayer* ges_clip_get_layer (GESClip *clip);
gboolean ges_clip_move_to_layer (GESClip *clip, GESLayer *layer);
/****************************************************
* Effects *
****************************************************/
GList* ges_clip_get_top_effects (GESClip *clip);
gint ges_clip_get_top_effect_position (GESClip *clip, GESBaseEffect *effect);
gboolean ges_clip_set_top_effect_priority (GESClip *clip, GESBaseEffect *effect,
guint newpriority);
/****************************************************
* Editing *
****************************************************/
GESClip* ges_clip_split (GESClip *clip, guint64 position);
G_END_DECLS
#endif /* _GES_CLIP */
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