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57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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_VIDEOSCALE_H__
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#define __GST_VIDEOSCALE_H__
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#include <gst/gst.h>
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#include <libs/colorspace/gstcolorspace.h>
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typedef enum {
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GST_VIDEOSCALE_POINT_SAMPLE,
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GST_VIDEOSCALE_NEAREST,
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GST_VIDEOSCALE_BILINEAR,
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GST_VIDEOSCALE_BICUBIC
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} GstVideoScaleMethod;
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typedef struct _GstVideoScale GstVideoScale;
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typedef void (*GstVideoScaleScaler) (GstVideoScale *scale, guchar *src, guchar *dest);
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struct _GstVideoScale {
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guint source_width;
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guint source_height;
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guint dest_width;
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guint dest_height;
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GstColorSpaceType format;
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GstVideoScaleMethod method;
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guint scale_bytes;
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/* private */
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guchar copy_row[8192];
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guchar *temp;
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GstVideoScaleScaler scale;
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void (*scaler) (GstVideoScale *scale, guchar *src, guchar *dest, gint sw, gint sh, gint dw, gint dh);
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guchar (*filter) (guchar *src, gdouble x, gdouble y, gint sw, gint sh);
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};
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GstVideoScale *gst_videoscale_new(gint sw, gint sh, gint dw, gint dh, GstColorSpaceType format, GstVideoScaleMethod method);
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#define gst_videoscale_scale(scaler, src, dest) (scaler)->scale((scaler), (src), (dest))
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void gst_videoscale_destroy(GstVideoScale *scale);
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#endif /* __GST_VIDEOSCALE_H__ */
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