1 /* GStreamer video frame cropping to aspect-ratio
2 * Copyright (C) 2009 Thijs Vermeir <thijsvermeir@gmail.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
20 #ifndef __GST_ASPECT_RATIO_CROP_H__
21 #define __GST_ASPECT_RATIO_CROP_H__
23 #include <gst/gstbin.h>
27 #define GST_TYPE_ASPECT_RATIO_CROP \
28 (gst_aspect_ratio_crop_get_type())
29 #define GST_ASPECT_RATIO_CROP(obj) \
30 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCrop))
31 #define GST_ASPECT_RATIO_CROP_CLASS(klass) \
32 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCropClass))
33 #define GST_IS_ASPECT_RATIO_CROP(obj) \
34 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASPECT_RATIO_CROP))
35 #define GST_IS_ASPECT_RATIO_CROP_CLASS(klass) \
36 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASPECT_RATIO_CROP))
38 typedef struct _GstAspectRatioCrop GstAspectRatioCrop;
39 typedef struct _GstAspectRatioCropClass GstAspectRatioCropClass;
41 struct _GstAspectRatioCrop
45 /* our videocrop element */
46 GstElement *videocrop;
49 GstPadEventFunction sinkpad_old_eventfunc;
51 /* target aspect ratio */
52 gint ar_num; /* if < 1 then don't change ar */
58 struct _GstAspectRatioCropClass
60 GstBinClass parent_class;
63 GType gst_aspect_ratio_crop_get_type (void);
67 #endif /* __GST_ASPECT_RATIO_CROP_H__ */