gstreamer/gst/videoscale/gstvideoscale.h

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_VIDEOSCALE_H__
#define __GST_VIDEOSCALE_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include "vs_image.h"
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (videoscale_debug);
#define GST_CAT_DEFAULT videoscale_debug
#define GST_TYPE_VIDEOSCALE \
(gst_videoscale_get_type())
#define GST_VIDEOSCALE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEOSCALE,GstVideoscale))
#define GST_VIDEOSCALE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEOSCALE,GstVideoscale))
#define GST_IS_VIDEOSCALE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEOSCALE))
#define GST_IS_VIDEOSCALE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEOSCALE))
typedef enum {
GST_VIDEOSCALE_POINT_SAMPLE,
GST_VIDEOSCALE_NEAREST,
GST_VIDEOSCALE_BILINEAR,
GST_VIDEOSCALE_BICUBIC
} GstVideoScaleMethod;
typedef struct _GstVideoscale GstVideoscale;
typedef struct _GstVideoscaleClass GstVideoscaleClass;
struct _GstVideoscale {
GstBaseTransform element;
GstVideoScaleMethod method;
/* negotiated stuff */
int format;
VSImage src;
VSImage dest;
guint src_size;
guint dest_size;
gint to_width;
gint to_height;
gint from_width;
gint from_height;
/* private */
guint8 *tmp_buf;
};
struct _GstVideoscaleClass {
GstBaseTransformClass parent_class;
};
GType gst_videoscale_get_type(void);
G_END_DECLS
#endif /* __GST_VIDEOSCALE_H__ */