diff -r 000000000000 -r 0e761a78d257 gst_plugins_base/gst/videoscale/gstvideoscale.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/gst/videoscale/gstvideoscale.h Thu Dec 17 08:53:32 2009 +0200 @@ -0,0 +1,94 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen + * + * 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_SCALE_H__ +#define __GST_VIDEO_SCALE_H__ + +#include +#include + +#include "vs_image.h" + +G_BEGIN_DECLS + +GST_DEBUG_CATEGORY_EXTERN (video_scale_debug); +#define GST_CAT_DEFAULT video_scale_debug + +#define GST_TYPE_VIDEO_SCALE \ + (gst_video_scale_get_type()) +#define GST_VIDEO_SCALE(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_SCALE,GstVideoScale)) +#define GST_VIDEO_SCALE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_SCALE,GstVideoScaleClass)) +#define GST_IS_VIDEO_SCALE(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_SCALE)) +#define GST_IS_VIDEO_SCALE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_SCALE)) + +/** + * GstVideoScaleMethod: + * @GST_VIDEO_SCALE_NEAREST: use nearest neighbour scaling (fast and ugly) + * @GST_VIDEO_SCALE_BILINEAR: use bilinear scaling (slower but prettier). + * @GST_VIDEO_SCALE_4TAP: use a 4-tap filter for scaling (slow). + * + * The videoscale method to use. + */ +typedef enum { + GST_VIDEO_SCALE_NEAREST, + GST_VIDEO_SCALE_BILINEAR, + GST_VIDEO_SCALE_4TAP +} GstVideoScaleMethod; + +typedef struct _GstVideoScale GstVideoScale; +typedef struct _GstVideoScaleClass GstVideoScaleClass; + +/** + * GstVideoScale: + * + * Opaque data structure + */ +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_video_scale_get_type(void); + +G_END_DECLS + +#endif /* __GST_VIDEO_SCALE_H__ */