mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-28 12:41:05 +00:00
da25385ed2
Original commit message from CVS: * gst/videoscale/gstvideoscale.c: (gst_videoscale_init), (gst_videoscale_prepare_size), (parse_caps), (gst_videoscale_set_caps), (gst_videoscale_get_size), (gst_videoscale_prepare_image), (gst_videoscale_transform_ip), (gst_videoscale_transform): * gst/videoscale/gstvideoscale.h: Refactor, make use of BaseTranform really well.
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/* 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__ */
|