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/**
* Weave frames, bottom-field-first.
* Copyright (C) 2003 Billy Biggs <vektor@dumbterm.net>.
* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "_stdint.h"
#include "gstdeinterlace2.h"
#include <string.h>
#define GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF (gst_deinterlace_method_weave_bff_get_type ())
#define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))
#define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))
#define GST_DEINTERLACE_METHOD_WEAVE_BFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))
#define GST_DEINTERLACE_METHOD_WEAVE_BFF(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFF))
#define GST_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))
#define GST_DEINTERLACE_METHOD_WEAVE_BFF_CAST(obj) ((GstDeinterlaceMethodWeaveBFF*)(obj))
GType gst_deinterlace_method_weave_bff_get_type (void);
typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveBFF;
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveBFFClass;
static void
deinterlace_scanline_weave (GstDeinterlaceMethod * self,
GstDeinterlace2 * parent, guint8 * out,
GstDeinterlaceScanlineData * scanlines, gint width)
{
oil_memcpy (out, scanlines->m1, parent->row_stride);
}
static void
copy_scanline (GstDeinterlaceMethod * self, GstDeinterlace2 * parent,
guint8 * out, GstDeinterlaceScanlineData * scanlines, gint width)
{
/* FIXME: original code used m2 and m0 but this looks really bad */
if (scanlines->bottom_field) {
oil_memcpy (out, scanlines->bb2, parent->row_stride);
} else {
oil_memcpy (out, scanlines->bb0, parent->row_stride);
}
}
G_DEFINE_TYPE (GstDeinterlaceMethodWeaveBFF, gst_deinterlace_method_weave_bff,
GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
static void
gst_deinterlace_method_weave_bff_class_init (GstDeinterlaceMethodWeaveBFFClass *
klass)
{
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
GstDeinterlaceSimpleMethodClass *dism_class =
(GstDeinterlaceSimpleMethodClass *) klass;
dim_class->fields_required = 3;
dim_class->name = "Progressive: Bottom Field First";
dim_class->nick = "weavebff";
dim_class->latency = 0;
dism_class->interpolate_scanline = deinterlace_scanline_weave;
dism_class->copy_scanline = copy_scanline;
}
static void
gst_deinterlace_method_weave_bff_init (GstDeinterlaceMethodWeaveBFF * self)
{
}
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