gstreamer/ges/ges-track.h
2020-03-05 16:59:37 -03:00

119 lines
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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GES_TRACK
#define _GES_TRACK
#include <glib-object.h>
#include <gst/gst.h>
#include <ges/ges-types.h>
#include <ges/ges-enums.h>
G_BEGIN_DECLS
#define GES_TYPE_TRACK ges_track_get_type()
#define GES_TRACK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_TRACK, GESTrack))
#define GES_TRACK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_TRACK, GESTrackClass))
#define GES_IS_TRACK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_TRACK))
#define GES_IS_TRACK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_TRACK))
#define GES_TRACK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_TRACK, GESTrackClass))
typedef struct _GESTrackPrivate GESTrackPrivate;
/**
* GESCreateElementForGapFunc:
* @track: The #GESTrack
*
* A function that creates a #GstElement that can be used as a source to
* fill the gaps of the track. A gap is a timeline region where the track
* has no #GESTrackElement sources.
*
* Returns: A source #GstElement to fill gaps in @track.
*/
typedef GstElement* (*GESCreateElementForGapFunc) (GESTrack *track);
/**
* GESTrack:
* @type: The #GESTrack:track-type of the track
*/
struct _GESTrack
{
GstBin parent;
/*< public >*/
/* READ-ONLY */
GESTrackType type;
/*< private >*/
GESTrackPrivate* priv;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
/**
* GESTrackClass:
*/
struct _GESTrackClass
{
/*< private >*/
GstBinClass parent_class;
GstElement * (*get_mixing_element) (GESTrack *track);
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
GES_API
const GstCaps* ges_track_get_caps (GESTrack *track);
GES_API
GList* ges_track_get_elements (GESTrack *track);
GES_API
const GESTimeline* ges_track_get_timeline (GESTrack *track);
GES_API
gboolean ges_track_commit (GESTrack *track);
GES_API
void ges_track_set_timeline (GESTrack *track, GESTimeline *timeline);
GES_API
gboolean ges_track_add_element (GESTrack *track, GESTrackElement *object);
GES_API
gboolean ges_track_remove_element (GESTrack *track, GESTrackElement *object);
GES_API
void ges_track_set_create_element_for_gap_func (GESTrack *track, GESCreateElementForGapFunc func);
GES_API
void ges_track_set_mixing (GESTrack *track, gboolean mixing);
GES_API
gboolean ges_track_get_mixing (GESTrack *track);
GES_API
void ges_track_set_restriction_caps (GESTrack *track, const GstCaps *caps);
GES_API
void ges_track_update_restriction_caps (GESTrack *track, const GstCaps *caps);
GES_API
GstCaps * ges_track_get_restriction_caps (GESTrack * track);
/* standard methods */
GES_API
GType ges_track_get_type (void);
GES_API
GESTrack* ges_track_new (GESTrackType type, GstCaps * caps);
G_END_DECLS
#endif /* _GES_TRACK */