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d6c425fc58
Knowing the positioning and size of each frame in the composition can help applications optimize their rendering pipeline. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5652>
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_FRAME_POSITIONNER_H_
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#define _GST_FRAME_POSITIONNER_H_
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#include <gst/base/gstbasetransform.h>
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#include <ges/ges-track-element.h>
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#include <ges/ges-track.h>
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G_BEGIN_DECLS
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#define GST_TYPE_FRAME_POSITIONNER (gst_frame_positioner_get_type())
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#define GST_FRAME_POSITIONNER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FRAME_POSITIONNER,GstFramePositioner))
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#define GST_FRAME_POSITIONNER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FRAME_POSITIONNER,GstFramePositionerClass))
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#define GST_IS_FRAME_POSITIONNER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FRAME_POSITIONNER))
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#define GST_IS_FRAME_POSITIONNER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FRAME_POSITIONNER))
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typedef struct _GstFramePositioner GstFramePositioner;
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typedef struct _GstFramePositionerClass GstFramePositionerClass;
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struct _GstFramePositioner
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{
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GstBaseTransform base_framepositioner;
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GstElement *capsfilter;
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GESTrackElement *track_source;
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GESTrack *current_track;
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gboolean scale_in_compositor;
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gdouble alpha;
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gdouble posx;
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gdouble posy;
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guint zorder;
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gdouble width;
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gdouble height;
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gint operator;
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gint natural_width;
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gint natural_height;
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gint track_width;
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gint track_height;
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gint fps_n;
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gint fps_d;
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gint par_n;
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gint par_d;
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gboolean user_positioned;
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/* This should never be made public, no padding needed */
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};
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struct _GstFramePositionerClass
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{
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GstBaseTransformClass base_framepositioner_class;
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};
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G_GNUC_INTERNAL GType gst_compositor_operator_get_type_and_default_value (int *default_operator_value);
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G_GNUC_INTERNAL void ges_frame_positioner_set_source_and_filter (GstFramePositioner *pos,
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GESTrackElement *trksrc,
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GstElement *capsfilter);
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G_GNUC_INTERNAL GType gst_frame_positioner_get_type (void);
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G_END_DECLS
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#endif
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