1 /* GStreamer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2003> David Schleef <ds@schleef.org>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21 /*
22 * This file was (probably) generated from
23 * $Id$
24 * and
25 * MAKEFILTERVERSION
26 */
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #include <gst/gst.h>
33 #include <gstvideofilter.h>
34 #include <string.h>
35
36 #define GST_TYPE_VIDEOTEMPLATE \
37 (gst_videotemplate_get_type())
38 #define GST_VIDEOTEMPLATE(obj) \
39 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEOTEMPLATE,GstVideotemplate))
40 #define GST_VIDEOTEMPLATE_CLASS(klass) \
41 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEOTEMPLATE,GstVideotemplateClass))
42 #define GST_IS_VIDEOTEMPLATE(obj) \
43 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEOTEMPLATE))
44 #define GST_IS_VIDEOTEMPLATE_CLASS(klass) \
45 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEOTEMPLATE))
46
47 typedef struct _GstVideotemplate GstVideotemplate;
48 typedef struct _GstVideotemplateClass GstVideotemplateClass;
49
50 struct _GstVideotemplate
51 {
52 GstVideofilter videofilter;
53
54 };
55
56 struct _GstVideotemplateClass
57 {
58 GstVideofilterClass parent_class;
59 };
60
61
62 /* GstVideotemplate signals and args */
63 enum
64 {
65 /* FILL ME */
66 LAST_SIGNAL
67 };
68
69 enum
70 {
71 PROP_0
72 /* FILL ME */
73 };
74
75 static void gst_videotemplate_base_init (gpointer g_class);
76 static void gst_videotemplate_class_init (gpointer g_class,
77 gpointer class_data);
78 static void gst_videotemplate_init (GTypeInstance * instance, gpointer g_class);
79
80 static void gst_videotemplate_set_property (GObject * object, guint prop_id,
81 const GValue * value, GParamSpec * pspec);
82 static void gst_videotemplate_get_property (GObject * object, guint prop_id,
83 GValue * value, GParamSpec * pspec);
84
85 static void gst_videotemplate_planar411 (GstVideofilter * videofilter,
86 void *dest, void *src);
87 static void gst_videotemplate_setup (GstVideofilter * videofilter);
88
89 GType
gst_videotemplate_get_type(void)90 gst_videotemplate_get_type (void)
91 {
92 static GType videotemplate_type = 0;
93
94 if (!videotemplate_type) {
95 static const GTypeInfo videotemplate_info = {
96 sizeof (GstVideotemplateClass),
97 gst_videotemplate_base_init,
98 NULL,
99 gst_videotemplate_class_init,
100 NULL,
101 NULL,
102 sizeof (GstVideotemplate),
103 0,
104 gst_videotemplate_init,
105 };
106
107 videotemplate_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
108 "GstVideotemplate", &videotemplate_info, 0);
109 }
110 return videotemplate_type;
111 }
112
113 static const GstVideofilterFormat gst_videotemplate_formats[] = {
114 {"I420", 12, gst_videotemplate_planar411,},
115 };
116
117
118 static void
gst_videotemplate_base_init(gpointer g_class)119 gst_videotemplate_base_init (gpointer g_class)
120 {
121
122 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
123 GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
124 int i;
125
126 gst_element_class_set_static_metadata (element_class, "Video filter template",
127 "Filter/Effect/Video",
128 "Template for a video filter", "David Schleef <ds@schleef.org>");
129
130 for (i = 0; i < G_N_ELEMENTS (gst_videotemplate_formats); i++) {
131 gst_videofilter_class_add_format (videofilter_class,
132 gst_videotemplate_formats + i);
133 }
134
135 gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
136 }
137
138 static void
gst_videotemplate_class_init(gpointer g_class,gpointer class_data)139 gst_videotemplate_class_init (gpointer g_class, gpointer class_data)
140 {
141 GObjectClass *gobject_class;
142 GstVideofilterClass *videofilter_class;
143
144 gobject_class = G_OBJECT_CLASS (g_class);
145 videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
146
147 #if 0
148 g_object_class_install_property (gobject_class, PROP_METHOD,
149 g_param_spec_enum ("method", "method", "method",
150 GST_TYPE_VIDEOTEMPLATE_METHOD, GST_VIDEOTEMPLATE_METHOD_1,
151 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
152 #endif
153
154 gobject_class->set_property = gst_videotemplate_set_property;
155 gobject_class->get_property = gst_videotemplate_get_property;
156
157 videofilter_class->setup = gst_videotemplate_setup;
158 }
159
160 static void
gst_videotemplate_init(GTypeInstance * instance,gpointer g_class)161 gst_videotemplate_init (GTypeInstance * instance, gpointer g_class)
162 {
163 GstVideotemplate *videotemplate = GST_VIDEOTEMPLATE (instance);
164 GstVideofilter *videofilter;
165
166 GST_DEBUG ("gst_videotemplate_init");
167
168 videofilter = GST_VIDEOFILTER (videotemplate);
169
170 /* do stuff */
171 }
172
173 static void
gst_videotemplate_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)174 gst_videotemplate_set_property (GObject * object, guint prop_id,
175 const GValue * value, GParamSpec * pspec)
176 {
177 GstVideotemplate *src;
178
179 g_return_if_fail (GST_IS_VIDEOTEMPLATE (object));
180 src = GST_VIDEOTEMPLATE (object);
181
182 GST_DEBUG ("gst_videotemplate_set_property");
183 switch (prop_id) {
184 #if 0
185 case PROP_METHOD:
186 src->method = g_value_get_enum (value);
187 break;
188 #endif
189 default:
190 break;
191 }
192 }
193
194 static void
gst_videotemplate_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)195 gst_videotemplate_get_property (GObject * object, guint prop_id, GValue * value,
196 GParamSpec * pspec)
197 {
198 GstVideotemplate *src;
199
200 g_return_if_fail (GST_IS_VIDEOTEMPLATE (object));
201 src = GST_VIDEOTEMPLATE (object);
202
203 switch (prop_id) {
204 #if 0
205 case PROP_METHOD:
206 g_value_set_enum (value, src->method);
207 break;
208 #endif
209 default:
210 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
211 break;
212 }
213 }
214
215 static gboolean
plugin_init(GstPlugin * plugin)216 plugin_init (GstPlugin * plugin)
217 {
218 return gst_element_register (plugin, "videotemplate", GST_RANK_NONE,
219 GST_TYPE_VIDEOTEMPLATE);
220 }
221
222 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
223 GST_VERSION_MINOR,
224 videotemplate,
225 "Template for a video filter",
226 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
227
gst_videotemplate_setup(GstVideofilter * videofilter)228 static void gst_videotemplate_setup (GstVideofilter * videofilter)
229 {
230 GstVideotemplate *videotemplate;
231
232 g_return_if_fail (GST_IS_VIDEOTEMPLATE (videofilter));
233 videotemplate = GST_VIDEOTEMPLATE (videofilter);
234
235 /* if any setup needs to be done, do it here */
236
237 }
238
239 static void
gst_videotemplate_planar411(GstVideofilter * videofilter,void * dest,void * src)240 gst_videotemplate_planar411 (GstVideofilter * videofilter,
241 void *dest, void *src)
242 {
243 GstVideotemplate *videotemplate;
244 int width = gst_videofilter_get_input_width (videofilter);
245 int height = gst_videofilter_get_input_height (videofilter);
246
247 g_return_if_fail (GST_IS_VIDEOTEMPLATE (videofilter));
248 videotemplate = GST_VIDEOTEMPLATE (videofilter);
249
250 /* do something interesting here. This simply copies the source
251 * to the destination. */
252 memcpy (dest, src, width * height + (width / 2) * (height / 2) * 2);
253 }
254