/* * GStreamer * Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Alternatively, the contents of this file may be used under the * GNU Lesser General Public License Version 2.1 (the "LGPL"), in * which case the following provisions apply instead of the ones * mentioned above: * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /* * As cvdilate_erode and cverode are all the same, except for the transform function, * we hope this base class should keep maintenance easier. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <gst/gst.h> #include "gstopencvutils.h" #include "gstcvdilateerode.h" /* GST_DEBUG_CATEGORY_STATIC (gst_cv_dilate_erode_debug); #define GST_CAT_DEFAULT gst_cv_dilate_erode_debug */ /* Filter signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { PROP_0, PROP_ITERATIONS, }; #define DEFAULT_ITERATIONS 1 static void gst_cv_dilate_erode_class_init (GstCvDilateErodeClass * klass); static void gst_cv_dilate_erode_init (GstCvDilateErode * filter, GstCvDilateErodeClass * gclass); static void gst_cv_dilate_erode_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_cv_dilate_erode_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); GType gst_cv_dilate_erode_get_type (void) { static volatile gsize opencv_dilate_erode_type = 0; if (g_once_init_enter (&opencv_dilate_erode_type)) { GType _type; static const GTypeInfo opencv_dilate_erode_info = { sizeof (GstCvDilateErodeClass), NULL, NULL, (GClassInitFunc) gst_cv_dilate_erode_class_init, NULL, NULL, sizeof (GstCvDilateErode), 0, (GInstanceInitFunc) gst_cv_dilate_erode_init, }; _type = g_type_register_static (GST_TYPE_OPENCV_VIDEO_FILTER, "GstCvDilateErode", &opencv_dilate_erode_info, G_TYPE_FLAG_ABSTRACT); /* GST_DEBUG_CATEGORY_INIT (gst_cv_dilate_erode_debug, "cvdilateerode", 0, "cvdilateerode"); */ g_once_init_leave (&opencv_dilate_erode_type, _type); } return opencv_dilate_erode_type; } /* initialize the cvdilate_erode's class */ static void gst_cv_dilate_erode_class_init (GstCvDilateErodeClass * klass) { GObjectClass *gobject_class; GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstCaps *caps; GstPadTemplate *templ; gobject_class = (GObjectClass *) klass; gobject_class->set_property = gst_cv_dilate_erode_set_property; gobject_class->get_property = gst_cv_dilate_erode_get_property; g_object_class_install_property (gobject_class, PROP_ITERATIONS, g_param_spec_int ("iterations", "iterations", "Number of iterations to run the algorithm", 1, G_MAXINT, DEFAULT_ITERATIONS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /* add sink and source pad templates */ caps = gst_opencv_caps_from_cv_image_type (CV_16UC1); gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC4)); gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC3)); gst_caps_append (caps, gst_opencv_caps_from_cv_image_type (CV_8UC1)); templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, gst_caps_ref (caps)); gst_element_class_add_pad_template (element_class, templ); templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps); gst_element_class_add_pad_template (element_class, templ); } /* initialize the new element * instantiate pads and add them to element * set pad calback functions * initialize instance structure */ static void gst_cv_dilate_erode_init (GstCvDilateErode * filter, GstCvDilateErodeClass * gclass) { filter->iterations = DEFAULT_ITERATIONS; gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), TRUE); } static void gst_cv_dilate_erode_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstCvDilateErode *filter = GST_CV_DILATE_ERODE (object); switch (prop_id) { case PROP_ITERATIONS: filter->iterations = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_cv_dilate_erode_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstCvDilateErode *filter = GST_CV_DILATE_ERODE (object); switch (prop_id) { case PROP_ITERATIONS: g_value_set_int (value, filter->iterations); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }