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108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*
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* gstvaapisubpicture.h - VA subpicture abstraction
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2011-2013 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_SUBPICTURE_H
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#define GST_VAAPI_SUBPICTURE_H
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#include <gst/vaapi/gstvaapidisplay.h>
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#include <gst/vaapi/gstvaapiimage.h>
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#include <gst/video/video-overlay-composition.h>
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G_BEGIN_DECLS
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#define GST_VAAPI_SUBPICTURE(obj) \
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((GstVaapiSubpicture *)(obj))
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typedef struct _GstVaapiSubpicture GstVaapiSubpicture;
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/**
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* GstVaapiSubpictureFlags:
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* @GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA:
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* subpicture has RGB pixels with pre-multiplied alpha
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* @GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA:
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* subpicture needs to be blended with some global-alpha value at
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* rendering time
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*
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* The set of all subpicture rendering flags for #GstVaapiSubpicture.
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*/
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typedef enum {
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GST_VAAPI_SUBPICTURE_FLAG_PREMULTIPLIED_ALPHA = (1 << 0),
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GST_VAAPI_SUBPICTURE_FLAG_GLOBAL_ALPHA = (1 << 1),
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} GstVaapiSubpictureFlags;
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#define GST_TYPE_VAAPI_SUBPICTURE (gst_vaapi_subpicture_get_type ())
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#define GST_VAAPI_SUBPICTURE_ID(subpicture) (gst_vaapi_subpicture_get_id (subpicture))
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GType
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gst_vaapi_subpicture_get_type (void) G_GNUC_CONST;
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/**
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* gst_vaapi_subpicture_unref: (skip)
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* @subpicture: (transfer full): a #GstVaapiSubpicture.
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*
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* Decreases the refcount of the subpicture. If the refcount reaches 0, the
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* subpicture will be freed.
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*/
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static inline void
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gst_vaapi_subpicture_unref (GstVaapiSubpicture *subpicture)
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{
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gst_mini_object_unref (GST_MINI_OBJECT_CAST (subpicture));
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}
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GstVaapiSubpicture *
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gst_vaapi_subpicture_new(GstVaapiImage *image, guint flags);
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GstVaapiSubpicture *
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gst_vaapi_subpicture_new_from_overlay_rectangle(
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GstVaapiDisplay *display,
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GstVideoOverlayRectangle *rect
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);
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GstVaapiID
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gst_vaapi_subpicture_get_id(GstVaapiSubpicture *subpicture);
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guint
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gst_vaapi_subpicture_get_flags(GstVaapiSubpicture *subpicture);
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GstVaapiImage *
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gst_vaapi_subpicture_get_image(GstVaapiSubpicture *subpicture);
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gboolean
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gst_vaapi_subpicture_set_image(GstVaapiSubpicture *subpicture,
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GstVaapiImage *image);
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gfloat
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gst_vaapi_subpicture_get_global_alpha(GstVaapiSubpicture *subpicture);
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gboolean
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gst_vaapi_subpicture_set_global_alpha(GstVaapiSubpicture *subpicture,
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gfloat global_alpha);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVaapiSubpicture, gst_vaapi_subpicture_unref)
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G_END_DECLS
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#endif /* GST_VAAPI_SUBPICTURE_H */
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