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94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/**
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* Weave frames, top-field-first.
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* Copyright (C) 2003 Billy Biggs <vektor@dumbterm.net>.
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* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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/*
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* Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
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* See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "_stdint.h"
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#include "gstdeinterlace.h"
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#include <string.h>
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#define GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF (gst_deinterlace_method_weave_tff_get_type ())
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#define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
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#define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
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#define GST_DEINTERLACE_METHOD_WEAVE_TFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
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#define GST_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFF))
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#define GST_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
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#define GST_DEINTERLACE_METHOD_WEAVE_TFF_CAST(obj) ((GstDeinterlaceMethodWeaveTFF*)(obj))
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GType gst_deinterlace_method_weave_tff_get_type (void);
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typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveTFF;
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typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveTFFClass;
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static void
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deinterlace_scanline_weave (GstDeinterlaceMethod * self,
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GstDeinterlace * parent, guint8 * out,
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GstDeinterlaceScanlineData * scanlines, gint width)
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{
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oil_memcpy (out, scanlines->m1, parent->row_stride);
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}
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static void
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copy_scanline (GstDeinterlaceMethod * self, GstDeinterlace * parent,
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guint8 * out, GstDeinterlaceScanlineData * scanlines, gint width)
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{
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/* FIXME: original code used m2 and m0 but this looks really bad */
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if (scanlines->bottom_field) {
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oil_memcpy (out, scanlines->bb0, parent->row_stride);
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} else {
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oil_memcpy (out, scanlines->bb2, parent->row_stride);
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}
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}
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G_DEFINE_TYPE (GstDeinterlaceMethodWeaveTFF, gst_deinterlace_method_weave_tff,
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GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
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static void
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gst_deinterlace_method_weave_tff_class_init (GstDeinterlaceMethodWeaveTFFClass *
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klass)
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{
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GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
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GstDeinterlaceSimpleMethodClass *dism_class =
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(GstDeinterlaceSimpleMethodClass *) klass;
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dim_class->fields_required = 3;
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dim_class->name = "Progressive: Top Field First";
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dim_class->nick = "weavetff";
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dim_class->latency = 0;
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dism_class->interpolate_scanline = deinterlace_scanline_weave;
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dism_class->copy_scanline = copy_scanline;
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}
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static void
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gst_deinterlace_method_weave_tff_init (GstDeinterlaceMethodWeaveTFF * self)
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{
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}
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