gstreamer/subprojects/gst-editing-services/ges/ges-frame-composition-meta.h

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/* GStreamer
* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
* Copyright (C) 2013 Thibault Saunier <thibault.saunier@collabora.com>
* Copyright (C) 2020 Thibault Saunier <tsaunier@igalia.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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#pragma once
#include <ges/ges-types.h>
#include <glib-object.h>
#include <gst/gst.h>
G_BEGIN_DECLS
/**
* ges_frame_composition_meta_api_get_type: (attributes doc.skip=true)
*/
GES_API
GType ges_frame_composition_meta_api_get_type (void);
/**
* GES_TYPE_META_FRAME_COMPOSITION: (attributes doc.skip=true)
*/
#define GES_TYPE_META_FRAME_COMPOSITION (ges_frame_composition_meta_api_get_type())
/**
* GESFrameCompositionMeta:
* @meta: the parent #GstMeta.
* @posx: The desired x position.
* @posy: The desired y position.
* @height: The desired height of the video. -1 means that no scaling should be
* applied.
* @width: The desired width of the video. -1 means that no scaling should beapplied
* applied.
* @zorder: The desired z order.
* @operator:The blending operator for the source.
*
* Metadata type that holds information about the positioning, size,
* transparency and composition operator of a video frame in the timeline
* composition.
*
* Since: 1.24
*/
typedef struct _GESFrameCompositionMeta GESFrameCompositionMeta;
struct _GESFrameCompositionMeta {
GstMeta meta;
gdouble alpha;
gdouble posx;
gdouble posy;
gdouble height;
gdouble width;
guint zorder;
#ifdef __cplusplus
gint _operator;
#else
gint operator;
#endif
};
GES_API
GESFrameCompositionMeta * ges_buffer_add_frame_composition_meta (GstBuffer * buffer);
G_END_DECLS