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95 lines
4.1 KiB
C
95 lines
4.1 KiB
C
/* GStreamer
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* Copyright (C) 2006 Nokia <stefan.kost@nokia.com
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*
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* videoorientation.h: video flipping and centering interface
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_ORIENTATION_H__
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#define __GST_VIDEO_ORIENTATION_H__
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#include <gst/gst.h>
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#include <gst/interfaces/interfaces-enumtypes.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_ORIENTATION \
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(gst_video_orientation_get_type ())
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#define GST_VIDEO_ORIENTATION(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientation))
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#define GST_IS_VIDEO_ORIENTATION(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_ORIENTATION))
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#define GST_VIDEO_ORIENTATION_GET_INTERFACE(inst) \
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(G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_VIDEO_ORIENTATION, GstVideoOrientationInterface))
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/**
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* GstVideoOrientation:
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*
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* Opaque #GstVideoOrientation data structure.
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*/
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typedef struct _GstVideoOrientation GstVideoOrientation;
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typedef struct _GstVideoOrientationInterface GstVideoOrientationInterface;
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/**
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* GstVideoOrientationInterface:
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* @iface: parent interface type.
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* @get_hflip: virtual method to get horizontal flipping state
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* @get_vflip: virtual method to get vertical flipping state
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* @get_hcenter: virtual method to get horizontal centering state
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* @get_vcenter: virtual method to get vertical centering state
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* @set_hflip: virtual method to set horizontal flipping state
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* @set_vflip: virtual method to set vertical flipping state
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* @set_hcenter: virtual method to set horizontal centering state
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* @set_vcenter: virtual method to set vertical centering state
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*
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* #GstVideoOrientationInterface interface.
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*/
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struct _GstVideoOrientationInterface {
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GTypeInterface iface;
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/* FIXME 0.11: fix awkward API? add some kind of get_supported flags thing
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* and then just return booleans/int from all vfuncs requiring the caller
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* to check the flags first */
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/* virtual functions */
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gboolean (* get_hflip) (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean (* get_vflip) (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean (* get_hcenter) (GstVideoOrientation *video_orientation, gint *center);
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gboolean (* get_vcenter) (GstVideoOrientation *video_orientation, gint *center);
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gboolean (* set_hflip) (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean (* set_vflip) (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean (* set_hcenter) (GstVideoOrientation *video_orientation, gint center);
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gboolean (* set_vcenter) (GstVideoOrientation *video_orientation, gint center);
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};
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GType gst_video_orientation_get_type (void);
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/* virtual class function wrappers */
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gboolean gst_video_orientation_get_hflip (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean gst_video_orientation_get_vflip (GstVideoOrientation *video_orientation, gboolean *flip);
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gboolean gst_video_orientation_get_hcenter (GstVideoOrientation *video_orientation, gint *center);
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gboolean gst_video_orientation_get_vcenter (GstVideoOrientation *video_orientation, gint *center);
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gboolean gst_video_orientation_set_hflip (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean gst_video_orientation_set_vflip (GstVideoOrientation *video_orientation, gboolean flip);
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gboolean gst_video_orientation_set_hcenter (GstVideoOrientation *video_orientation, gint center);
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gboolean gst_video_orientation_set_vcenter (GstVideoOrientation *video_orientation, gint center);
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G_END_DECLS
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#endif /* __GST_VIDEO_ORIENTATION_H__ */
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