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68 lines
2 KiB
C
68 lines
2 KiB
C
/* GStreamer video frame cropping to aspect-ratio
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* Copyright (C) 2009 Thijs Vermeir <thijsvermeir@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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_ASPECT_RATIO_CROP_H__
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#define __GST_ASPECT_RATIO_CROP_H__
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#include <gst/gstbin.h>
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G_BEGIN_DECLS
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#define GST_TYPE_ASPECT_RATIO_CROP \
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(gst_aspect_ratio_crop_get_type())
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#define GST_ASPECT_RATIO_CROP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCrop))
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#define GST_ASPECT_RATIO_CROP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCropClass))
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#define GST_IS_ASPECT_RATIO_CROP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASPECT_RATIO_CROP))
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#define GST_IS_ASPECT_RATIO_CROP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASPECT_RATIO_CROP))
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typedef struct _GstAspectRatioCrop GstAspectRatioCrop;
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typedef struct _GstAspectRatioCropClass GstAspectRatioCropClass;
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struct _GstAspectRatioCrop
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{
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GstBin parent;
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/* our videocrop element */
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GstElement *videocrop;
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GstPad *sink;
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GstPadEventFunction sinkpad_old_eventfunc;
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/* target aspect ratio */
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gint ar_num; /* if < 1 then don't change ar */
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gint ar_denom;
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GMutex *crop_lock;
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};
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struct _GstAspectRatioCropClass
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{
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GstBinClass parent_class;
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};
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GType gst_aspect_ratio_crop_get_type (void);
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G_END_DECLS
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#endif /* __GST_ASPECT_RATIO_CROP_H__ */
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