mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-02 14:36:41 +00:00
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/**
|
|
* Weave frames, top-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.
|
|
*/
|
|
|
|
/*
|
|
* Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
|
|
* See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
|
|
*/
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include "_stdint.h"
|
|
#include "gstdeinterlace.h"
|
|
#include <string.h>
|
|
|
|
#define GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF (gst_deinterlace_method_weave_tff_get_type ())
|
|
#define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
|
|
#define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
|
|
#define GST_DEINTERLACE_METHOD_WEAVE_TFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
|
|
#define GST_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFF))
|
|
#define GST_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
|
|
#define GST_DEINTERLACE_METHOD_WEAVE_TFF_CAST(obj) ((GstDeinterlaceMethodWeaveTFF*)(obj))
|
|
|
|
GType gst_deinterlace_method_weave_tff_get_type (void);
|
|
|
|
typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveTFF;
|
|
|
|
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveTFFClass;
|
|
|
|
|
|
static void
|
|
deinterlace_scanline_weave (GstDeinterlaceMethod * self,
|
|
GstDeinterlace * parent, guint8 * out,
|
|
GstDeinterlaceScanlineData * scanlines, gint width)
|
|
{
|
|
oil_memcpy (out, scanlines->m1, parent->row_stride);
|
|
}
|
|
|
|
static void
|
|
copy_scanline (GstDeinterlaceMethod * self, GstDeinterlace * 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->bb0, parent->row_stride);
|
|
} else {
|
|
oil_memcpy (out, scanlines->bb2, parent->row_stride);
|
|
}
|
|
}
|
|
|
|
G_DEFINE_TYPE (GstDeinterlaceMethodWeaveTFF, gst_deinterlace_method_weave_tff,
|
|
GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
|
|
|
|
static void
|
|
gst_deinterlace_method_weave_tff_class_init (GstDeinterlaceMethodWeaveTFFClass *
|
|
klass)
|
|
{
|
|
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
|
|
GstDeinterlaceSimpleMethodClass *dism_class =
|
|
(GstDeinterlaceSimpleMethodClass *) klass;
|
|
|
|
dim_class->fields_required = 3;
|
|
dim_class->name = "Progressive: Top Field First";
|
|
dim_class->nick = "weavetff";
|
|
dim_class->latency = 0;
|
|
|
|
dism_class->interpolate_scanline = deinterlace_scanline_weave;
|
|
dism_class->copy_scanline = copy_scanline;
|
|
}
|
|
|
|
static void
|
|
gst_deinterlace_method_weave_tff_init (GstDeinterlaceMethodWeaveTFF * self)
|
|
{
|
|
}
|