1 /*
2 * GStreamer
3 * Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Alternatively, the contents of this file may be used under the
24 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
25 * which case the following provisions apply instead of the ones
26 * mentioned above:
27 *
28 * This library is free software; you can redistribute it and/or
29 * modify it under the terms of the GNU Library General Public
30 * License as published by the Free Software Foundation; either
31 * version 2 of the License, or (at your option) any later version.
32 *
33 * This library is distributed in the hope that it will be useful,
34 * but WITHOUT ANY WARRANTY; without even the implied warranty of
35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
36 * Library General Public License for more details.
37 *
38 * You should have received a copy of the GNU Library General Public
39 * License along with this library; if not, write to the
40 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
41 * Boston, MA 02110-1301, USA.
42 */
43
44 /*
45 * As cvdilate_erode and cverode are all the same, except for the transform function,
46 * we hope this base class should keep maintenance easier.
47 */
48
49 #ifdef HAVE_CONFIG_H
50 # include <config.h>
51 #endif
52
53 #include "gst/opencv/gstopencvutils.h"
54 #include "gstcvdilateerode.h"
55
56 #include <opencv2/core.hpp>
57
58 /*
59 GST_DEBUG_CATEGORY_STATIC (gst_cv_dilate_erode_debug);
60 #define GST_CAT_DEFAULT gst_cv_dilate_erode_debug
61 */
62
63
64 /* Filter signals and args */
65 enum
66 {
67 /* FILL ME */
68 LAST_SIGNAL
69 };
70 enum
71 {
72 PROP_0,
73 PROP_ITERATIONS,
74 };
75
76 #define DEFAULT_ITERATIONS 1
77
78 static void gst_cv_dilate_erode_class_init (GstCvDilateErodeClass * klass);
79 static void gst_cv_dilate_erode_init (GstCvDilateErode * filter,
80 GstCvDilateErodeClass * gclass);
81
82 static void gst_cv_dilate_erode_set_property (GObject * object, guint prop_id,
83 const GValue * value, GParamSpec * pspec);
84 static void gst_cv_dilate_erode_get_property (GObject * object, guint prop_id,
85 GValue * value, GParamSpec * pspec);
86
87 GType
gst_cv_dilate_erode_get_type(void)88 gst_cv_dilate_erode_get_type (void)
89 {
90 static volatile gsize opencv_dilate_erode_type = 0;
91
92 if (g_once_init_enter ((unsigned long *)&opencv_dilate_erode_type)) {
93 GType _type;
94 static const GTypeInfo opencv_dilate_erode_info = {
95 sizeof (GstCvDilateErodeClass),
96 NULL,
97 NULL,
98 (GClassInitFunc) gst_cv_dilate_erode_class_init,
99 NULL,
100 NULL,
101 sizeof (GstCvDilateErode),
102 0,
103 (GInstanceInitFunc) gst_cv_dilate_erode_init,
104 };
105
106 _type = g_type_register_static (GST_TYPE_OPENCV_VIDEO_FILTER,
107 "GstCvDilateErode", &opencv_dilate_erode_info, G_TYPE_FLAG_ABSTRACT);
108 /*
109 GST_DEBUG_CATEGORY_INIT (gst_cv_dilate_erode_debug, "cvdilateerode", 0,
110 "cvdilateerode");
111 */
112 g_once_init_leave (&opencv_dilate_erode_type, _type);
113 }
114 return opencv_dilate_erode_type;
115 }
116
117 /* initialize the cvdilate_erode's class */
118 static void
gst_cv_dilate_erode_class_init(GstCvDilateErodeClass * klass)119 gst_cv_dilate_erode_class_init (GstCvDilateErodeClass * klass)
120 {
121 GObjectClass *gobject_class;
122 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
123 GstCaps *caps;
124 GstPadTemplate *templ;
125
126 gobject_class = (GObjectClass *) klass;
127
128 gobject_class->set_property = gst_cv_dilate_erode_set_property;
129 gobject_class->get_property = gst_cv_dilate_erode_get_property;
130
131 g_object_class_install_property (gobject_class, PROP_ITERATIONS,
132 g_param_spec_int ("iterations", "iterations",
133 "Number of iterations to run the algorithm", 1, G_MAXINT,
134 DEFAULT_ITERATIONS,
135 (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
136
137 /* add sink and source pad templates */
138 caps = gst_opencv_caps_from_cv_image_type (CV_16UC1);
139 gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC4));
140 gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC3));
141 gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC1));
142 templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
143 gst_caps_ref (caps));
144 gst_element_class_add_pad_template (element_class, templ);
145 templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
146 gst_element_class_add_pad_template (element_class, templ);
147 gst_caps_unref (caps);
148 }
149
150 /* initialize the new element
151 * instantiate pads and add them to element
152 * set pad calback functions
153 * initialize instance structure
154 */
155 static void
gst_cv_dilate_erode_init(GstCvDilateErode * filter,GstCvDilateErodeClass * gclass)156 gst_cv_dilate_erode_init (GstCvDilateErode * filter,
157 GstCvDilateErodeClass * gclass)
158 {
159 filter->iterations = DEFAULT_ITERATIONS;
160 gst_opencv_video_filter_set_in_place (GST_OPENCV_VIDEO_FILTER_CAST (filter),
161 TRUE);
162 }
163
164 static void
gst_cv_dilate_erode_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)165 gst_cv_dilate_erode_set_property (GObject * object, guint prop_id,
166 const GValue * value, GParamSpec * pspec)
167 {
168 GstCvDilateErode *filter = GST_CV_DILATE_ERODE (object);
169
170 switch (prop_id) {
171 case PROP_ITERATIONS:
172 filter->iterations = g_value_get_int (value);
173 break;
174 default:
175 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
176 break;
177 }
178 }
179
180 static void
gst_cv_dilate_erode_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)181 gst_cv_dilate_erode_get_property (GObject * object, guint prop_id,
182 GValue * value, GParamSpec * pspec)
183 {
184 GstCvDilateErode *filter = GST_CV_DILATE_ERODE (object);
185
186 switch (prop_id) {
187 case PROP_ITERATIONS:
188 g_value_set_int (value, filter->iterations);
189 break;
190 default:
191 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
192 break;
193 }
194 }
195