1 /*
2 * Weave frames, top-field-first.
3 * Copyright (C) 2003 Billy Biggs <vektor@dumbterm.net>.
4 * Copyright (C) 2008,2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22 /*
23 * Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
24 * See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
25 */
26
27
28 #ifdef HAVE_CONFIG_H
29 # include "config.h"
30 #endif
31
32 #include "gstdeinterlacemethod.h"
33 #include <string.h>
34
35 #define GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF (gst_deinterlace_method_weave_tff_get_type ())
36 #define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
37 #define GST_IS_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF))
38 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
39 #define GST_DEINTERLACE_METHOD_WEAVE_TFF(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFF))
40 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_TFF, GstDeinterlaceMethodWeaveTFFClass))
41 #define GST_DEINTERLACE_METHOD_WEAVE_TFF_CAST(obj) ((GstDeinterlaceMethodWeaveTFF*)(obj))
42
43 GType gst_deinterlace_method_weave_tff_get_type (void);
44
45 typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveTFF;
46 typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveTFFClass;
47
48 static void
deinterlace_scanline_weave_packed(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)49 deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,
50 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
51 {
52 if (scanlines->m1 == NULL) {
53 memcpy (out, scanlines->t0, size);
54 } else {
55 memcpy (out, scanlines->m1, size);
56 }
57 }
58
59 static void
deinterlace_scanline_weave_planar_y(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)60 deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,
61 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
62 {
63 if (scanlines->m1 == NULL) {
64 memcpy (out, scanlines->t0, size);
65 } else {
66 memcpy (out, scanlines->m1, size);
67 }
68 }
69
70 static void
deinterlace_scanline_weave_planar_u(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)71 deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,
72 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
73 {
74 if (scanlines->m1 == NULL) {
75 memcpy (out, scanlines->t0, size);
76 } else {
77 memcpy (out, scanlines->m1, size);
78 }
79 }
80
81 static void
deinterlace_scanline_weave_planar_v(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)82 deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,
83 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
84 {
85 if (scanlines->m1 == NULL) {
86 memcpy (out, scanlines->t0, size);
87 } else {
88 memcpy (out, scanlines->m1, size);
89 }
90 }
91
92 static void
copy_scanline_packed(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)93 copy_scanline_packed (GstDeinterlaceSimpleMethod * self,
94 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
95 {
96 memcpy (out, scanlines->m0, size);
97 }
98
99 static void
copy_scanline_planar_y(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)100 copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self,
101 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
102 {
103 memcpy (out, scanlines->m0, size);
104 }
105
106 static void
copy_scanline_planar_u(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)107 copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self,
108 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
109 {
110 memcpy (out, scanlines->m0, size);
111 }
112
113 static void
copy_scanline_planar_v(GstDeinterlaceSimpleMethod * self,guint8 * out,const GstDeinterlaceScanlineData * scanlines,guint size)114 copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self,
115 guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
116 {
117 memcpy (out, scanlines->m0, size);
118 }
119
120 G_DEFINE_TYPE (GstDeinterlaceMethodWeaveTFF, gst_deinterlace_method_weave_tff,
121 GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
122
123 static void
gst_deinterlace_method_weave_tff_class_init(GstDeinterlaceMethodWeaveTFFClass * klass)124 gst_deinterlace_method_weave_tff_class_init (GstDeinterlaceMethodWeaveTFFClass *
125 klass)
126 {
127 GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
128 GstDeinterlaceSimpleMethodClass *dism_class =
129 (GstDeinterlaceSimpleMethodClass *) klass;
130
131 dim_class->fields_required = 2;
132 dim_class->name = "Progressive: Top Field First";
133 dim_class->nick = "weavetff";
134 dim_class->latency = 1;
135
136 dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;
137 dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;
138 dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;
139 dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;
140 dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;
141 dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;
142 dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;
143 dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;
144 dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;
145 dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;
146 dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;
147 dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;
148 dism_class->interpolate_scanline_planar_y =
149 deinterlace_scanline_weave_planar_y;
150 dism_class->interpolate_scanline_planar_u =
151 deinterlace_scanline_weave_planar_u;
152 dism_class->interpolate_scanline_planar_v =
153 deinterlace_scanline_weave_planar_v;
154
155 dism_class->copy_scanline_ayuv = copy_scanline_packed;
156 dism_class->copy_scanline_yuy2 = copy_scanline_packed;
157 dism_class->copy_scanline_yvyu = copy_scanline_packed;
158 dism_class->copy_scanline_uyvy = copy_scanline_packed;
159 dism_class->copy_scanline_nv12 = copy_scanline_packed;
160 dism_class->copy_scanline_nv21 = copy_scanline_packed;
161 dism_class->copy_scanline_argb = copy_scanline_packed;
162 dism_class->copy_scanline_abgr = copy_scanline_packed;
163 dism_class->copy_scanline_rgba = copy_scanline_packed;
164 dism_class->copy_scanline_bgra = copy_scanline_packed;
165 dism_class->copy_scanline_rgb = copy_scanline_packed;
166 dism_class->copy_scanline_bgr = copy_scanline_packed;
167 dism_class->copy_scanline_planar_y = copy_scanline_planar_y;
168 dism_class->copy_scanline_planar_u = copy_scanline_planar_u;
169 dism_class->copy_scanline_planar_v = copy_scanline_planar_v;
170 }
171
172 static void
gst_deinterlace_method_weave_tff_init(GstDeinterlaceMethodWeaveTFF * self)173 gst_deinterlace_method_weave_tff_init (GstDeinterlaceMethodWeaveTFF * self)
174 {
175 }
176