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/* GStreamer video frame cropping
* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
*
* 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_VIDEO_CROP_H__
#define __GST_VIDEO_CROP_H__
#include <gst/base/gstbasetransform.h>
G_BEGIN_DECLS
#define GST_TYPE_VIDEO_CROP \
(gst_video_crop_get_type())
#define GST_VIDEO_CROP(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_CROP,GstVideoCrop))
#define GST_VIDEO_CROP_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_CROP,GstVideoCropClass))
#define GST_IS_VIDEO_CROP(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_CROP))
#define GST_IS_VIDEO_CROP_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_CROP))
typedef enum {
VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE = 0, /* RGBx, AYUV */
VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX, /* UYVY, YVYU */
VIDEO_CROP_PIXEL_FORMAT_PLANAR, /* I420, YV12 */
VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR /* NV12, NV21 */
} VideoCropPixelFormat;
typedef struct _GstVideoCropImageDetails GstVideoCropImageDetails;
struct _GstVideoCropImageDetails
{
/*< private >*/
VideoCropPixelFormat packing;
guint width;
guint height;
guint size;
/* for packed RGB and YUV */
guint stride;
guint bytes_per_pixel;
guint8 macro_y_off; /* for YUY2, YVYU, UYVY, Y offset within macropixel in bytes */
/* for planar YUV */
guint y_stride, y_off;
guint u_stride, u_off;
guint v_stride, v_off;
/* For bi-planar UV or VU plane */
guint uv_stride, uv_off;
};
typedef struct _GstVideoCrop GstVideoCrop;
typedef struct _GstVideoCropClass GstVideoCropClass;
struct _GstVideoCrop
{
GstBaseTransform basetransform;
/*< private >*/
gint prop_left;
gint prop_right;
gint prop_top;
gint prop_bottom;
gint crop_left;
gint crop_right;
gint crop_top;
gint crop_bottom;
GstVideoCropImageDetails in; /* details of input image */
GstVideoCropImageDetails out; /* details of output image */
};
struct _GstVideoCropClass
{
GstBaseTransformClass basetransform_class;
};
GType gst_video_crop_get_type (void);
G_END_DECLS
#endif /* __GST_VIDEO_CROP_H__ */
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