gstreamer/subprojects/gst-editing-services/ges/gstframepositioner.h

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2022-03-12 03:16:09 +08:00
/* GStreamer
* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
*
* 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 _GST_FRAME_POSITIONNER_H_
#define _GST_FRAME_POSITIONNER_H_
#include <gst/base/gstbasetransform.h>
#include <ges/ges-track-element.h>
#include <ges/ges-track.h>
G_BEGIN_DECLS
#define GST_TYPE_FRAME_POSITIONNER (gst_frame_positioner_get_type())
#define GST_FRAME_POSITIONNER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FRAME_POSITIONNER,GstFramePositioner))
#define GST_FRAME_POSITIONNER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FRAME_POSITIONNER,GstFramePositionerClass))
#define GST_IS_FRAME_POSITIONNER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FRAME_POSITIONNER))
#define GST_IS_FRAME_POSITIONNER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FRAME_POSITIONNER))
typedef struct _GstFramePositioner GstFramePositioner;
typedef struct _GstFramePositionerClass GstFramePositionerClass;
typedef struct _GstFramePositionerMeta GstFramePositionerMeta;
struct _GstFramePositioner
{
GstBaseTransform base_framepositioner;
GstElement *capsfilter;
GESTrackElement *track_source;
GESTrack *current_track;
gboolean scale_in_compositor;
gdouble alpha;
gdouble posx;
gdouble posy;
guint zorder;
gdouble width;
gdouble height;
gint operator;
gint natural_width;
gint natural_height;
gint track_width;
gint track_height;
gint fps_n;
gint fps_d;
gint par_n;
gint par_d;
gboolean user_positioned;
/* This should never be made public, no padding needed */
};
struct _GstFramePositionerClass
{
GstBaseTransformClass base_framepositioner_class;
};
struct _GstFramePositionerMeta {
GstMeta meta;
gdouble alpha;
gint posx;
gint posy;
gint height;
gint width;
guint zorder;
gint operator;
};
G_GNUC_INTERNAL void ges_frame_positioner_set_source_and_filter (GstFramePositioner *pos,
GESTrackElement *trksrc,
GstElement *capsfilter);
G_GNUC_INTERNAL GType gst_frame_positioner_get_type (void);
G_GNUC_INTERNAL GType
gst_frame_positioner_meta_api_get_type (void);
G_END_DECLS
#endif