--- /dev/null
+/*
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+
+#include "gstcvsobel.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_cv_sobel_debug);
+#define GST_CAT_DEFAULT gst_cv_sobel_debug
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw-gray, depth=(int)8, bpp=(int)8")
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS
+ ("video/x-raw-gray, depth=(int)16, bpp=(int)16, endianness=(int)4321")
+ );
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+enum
+{
+ PROP_0,
+ PROP_X_ORDER,
+ PROP_Y_ORDER,
+ PROP_APERTURE_SIZE
+};
+
+#define DEFAULT_X_ORDER 1
+#define DEFAULT_Y_ORDER 0
+#define DEFAULT_APERTURE_SIZE 3
+
+GST_BOILERPLATE (GstCvSobel, gst_cv_sobel, GstOpencvBaseTransform,
+ GST_TYPE_OPENCV_BASE_TRANSFORM);
+
+static void gst_cv_sobel_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_cv_sobel_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstCaps *gst_cv_sobel_transform_caps (GstBaseTransform * trans,
+ GstPadDirection dir, GstCaps * caps);
+
+static GstFlowReturn gst_cv_sobel_transform (GstOpencvBaseTransform * filter,
+ GstBuffer * buf, IplImage * img, GstBuffer * outbuf, IplImage * outimg);
+
+/* Clean up */
+static void
+gst_cv_sobel_finalize (GObject * obj)
+{
+ G_OBJECT_CLASS (parent_class)->finalize (obj);
+}
+
+/* GObject vmethod implementations */
+
+static void
+gst_cv_sobel_base_init (gpointer gclass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
+
+ gst_element_class_set_details_simple (element_class,
+ "cvsobel",
+ "Transform/Effect/Video",
+ "Applies cvSobel OpenCV function to the image",
+ "Thiago Santos<thiago.sousa.santos@collabora.co.uk>");
+}
+
+/* initialize the cvsobel's class */
+static void
+gst_cv_sobel_class_init (GstCvSobelClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstBaseTransformClass *gstbasetransform_class;
+ GstOpencvBaseTransformClass *gstopencvbasefilter_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+ gstbasetransform_class = (GstBaseTransformClass *) klass;
+ gstopencvbasefilter_class = (GstOpencvBaseTransformClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_cv_sobel_finalize);
+ gobject_class->set_property = gst_cv_sobel_set_property;
+ gobject_class->get_property = gst_cv_sobel_get_property;
+
+ gstbasetransform_class->transform_caps = gst_cv_sobel_transform_caps;
+
+ gstopencvbasefilter_class->cv_trans_func = gst_cv_sobel_transform;
+
+ g_object_class_install_property (gobject_class, PROP_X_ORDER,
+ g_param_spec_int ("x-order", "x order",
+ "Order of the derivative x", -1, G_MAXINT,
+ DEFAULT_X_ORDER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, PROP_Y_ORDER,
+ g_param_spec_int ("y-order", "y order",
+ "Order of the derivative y", -1, G_MAXINT,
+ DEFAULT_Y_ORDER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, PROP_APERTURE_SIZE,
+ g_param_spec_int ("aperture-size", "aperture size",
+ "Size of the extended Sobel Kernel (1, 3, 5 or 7)", 1, 7,
+ DEFAULT_APERTURE_SIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+}
+
+static void
+gst_cv_sobel_init (GstCvSobel * filter, GstCvSobelClass * gclass)
+{
+ filter->x_order = DEFAULT_X_ORDER;
+ filter->y_order = DEFAULT_Y_ORDER;
+ filter->aperture_size = DEFAULT_APERTURE_SIZE;
+
+ gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), FALSE);
+}
+
+static GstCaps *
+gst_cv_sobel_transform_caps (GstBaseTransform * trans, GstPadDirection dir,
+ GstCaps * caps)
+{
+ GstCaps *output = NULL;
+ GstStructure *structure;
+ gint i;
+
+ output = gst_caps_copy (caps);
+
+ /* we accept anything from the template caps for either side */
+ switch (dir) {
+ case GST_PAD_SINK:
+ for (i = 0; i < gst_caps_get_size (output); i++) {
+ structure = gst_caps_get_structure (output, i);
+ gst_structure_set (structure,
+ "depth", G_TYPE_INT, 16,
+ "bpp", G_TYPE_INT, 16, "endianness", G_TYPE_INT, 4321, NULL);
+ }
+ break;
+ case GST_PAD_SRC:
+ for (i = 0; i < gst_caps_get_size (output); i++) {
+ structure = gst_caps_get_structure (output, i);
+ gst_structure_set (structure,
+ "depth", G_TYPE_INT, 8, "bpp", G_TYPE_INT, 8, NULL);
+ gst_structure_remove_field (structure, "endianness");
+ }
+ break;
+ default:
+ gst_caps_unref (output);
+ output = NULL;
+ g_assert_not_reached ();
+ break;
+ }
+
+ return output;
+}
+
+static void
+gst_cv_sobel_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstCvSobel *filter = GST_CV_SOBEL (object);
+
+ switch (prop_id) {
+ case PROP_X_ORDER:
+ filter->x_order = g_value_get_int (value);
+ break;
+ case PROP_Y_ORDER:
+ filter->y_order = g_value_get_int (value);
+ break;
+ case PROP_APERTURE_SIZE:{
+ gint as = g_value_get_int (value);
+
+ if (as % 2 != 1) {
+ GST_WARNING_OBJECT (filter, "Invalid value %d for aperture size", as);
+ } else
+ filter->aperture_size = g_value_get_int (value);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_cv_sobel_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstCvSobel *filter = GST_CV_SOBEL (object);
+
+ switch (prop_id) {
+ case PROP_X_ORDER:
+ g_value_set_int (value, filter->x_order);
+ break;
+ case PROP_Y_ORDER:
+ g_value_set_int (value, filter->y_order);
+ break;
+ case PROP_APERTURE_SIZE:
+ g_value_set_int (value, filter->aperture_size);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstFlowReturn
+gst_cv_sobel_transform (GstOpencvBaseTransform * base, GstBuffer * buf,
+ IplImage * img, GstBuffer * outbuf, IplImage * outimg)
+{
+ GstCvSobel *filter = GST_CV_SOBEL (base);
+
+ cvSobel (img, outimg, filter->x_order, filter->y_order,
+ filter->aperture_size);
+
+ return GST_FLOW_OK;
+}
+
+gboolean
+gst_cv_sobel_plugin_init (GstPlugin * plugin)
+{
+ GST_DEBUG_CATEGORY_INIT (gst_cv_sobel_debug, "cvsobel", 0, "cvsobel");
+
+ return gst_element_register (plugin, "cvsobel", GST_RANK_NONE,
+ GST_TYPE_CV_SOBEL);
+}
--- /dev/null
+/*
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_CV_SOBEL_H__
+#define __GST_CV_SOBEL_H__
+
+#include <gst/gst.h>
+#include <cv.h>
+#include <gstopencvbasetrans.h>
+
+G_BEGIN_DECLS
+
+/* #defines don't like whitespacey bits */
+#define GST_TYPE_CV_SOBEL \
+ (gst_cv_sobel_get_type())
+#define GST_CV_SOBEL(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CV_SOBEL,GstCvSobel))
+#define GST_CV_SOBEL_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CV_SOBEL,GstCvSobelClass))
+#define GST_IS_CV_SOBEL(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CV_SOBEL))
+#define GST_IS_CV_SOBEL_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CV_SOBEL))
+
+typedef struct _GstCvSobel GstCvSobel;
+typedef struct _GstCvSobelClass GstCvSobelClass;
+
+struct _GstCvSobel
+{
+ GstOpencvBaseTransform element;
+
+ gint x_order;
+ gint y_order;
+ gint aperture_size;
+};
+
+struct _GstCvSobelClass
+{
+ GstOpencvBaseTransformClass parent_class;
+};
+
+GType gst_cv_sobel_get_type (void);
+
+gboolean gst_cv_sobel_plugin_init (GstPlugin * plugin);
+
+G_END_DECLS
+
+#endif /* __GST_CV_SOBEL_H__ */
projects / platform / upstream / gstreamer.git / commitdiff