Adds new element cvsobel

ext/opencv/basicfilters/Makefile.am

@@ -5,7 +5,8 @@ libgstbasicfilters_la_SOURCES = gstcvsmooth.c \
     gstcvdilateerode.c \
     gstcvdilate.c \
     gstcvequalizehist.c \
-    gstcverode.c
+    gstcverode.c \
+    gstcvsobel.c
 
 # flags used to compile this pyramidsegment
 # add other _CFLAGS and _LIBS as needed
@@ -18,4 +19,5 @@ noinst_HEADERS = gstcvsmooth.h \
                  gstcvdilateerode.h \
                  gstcvdilate.h \
                  gstcvequalizehist.h \
-                 gstcverode.h
+                 gstcverode.h \
+                 gstcvsobel.c

ext/opencv/basicfilters/gstcvsobel.c

@@ -0,0 +1,281 @@
+/*
+ * 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);
+}

ext/opencv/basicfilters/gstcvsobel.h

@@ -0,0 +1,88 @@
+/*
+ * 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__ */

ext/opencv/gstopencv.c

@@ -27,6 +27,7 @@
 #include "gstcvequalizehist.h"
 #include "gstcverode.h"
 #include "gstcvsmooth.h"
+#include "gstcvsobel.h"
 #include "gstedgedetect.h"
 #include "gstfaceblur.h"
 #include "gstfacedetect.h"
@@ -37,7 +38,6 @@
 static gboolean
 plugin_init (GstPlugin * plugin)
 {
-
   if (!gst_cv_dilate_plugin_init (plugin))
     return FALSE;
 
@@ -50,6 +50,9 @@ plugin_init (GstPlugin * plugin)
   if (!gst_cv_smooth_plugin_init (plugin))
     return FALSE;
 
+  if (!gst_cv_sobel_plugin_init (plugin))
+    return FALSE;
+
   if (!gst_edgedetect_plugin_init (plugin))
     return FALSE;
 

ext/opencv/gstopencvutils.c

@@ -53,6 +53,8 @@ gst_opencv_get_ipl_depth_and_channels (GstStructure * structure,
   if (depth / *channels == 8) {
     /* TODO signdness? */
     *ipldepth = IPL_DEPTH_8U;
+  } else if (depth / *channels == 16) {
+    *ipldepth = IPL_DEPTH_16U;
   } else {
     g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
         "Unsupported depth/channels %d/%d", depth, *channels);
@@ -86,6 +88,7 @@ gboolean
 gst_opencv_parse_iplimage_params_from_caps (GstCaps * caps, gint * width,
     gint * height, gint * ipldepth, gint * channels, GError ** err)
 {
-  return gst_opencv_parse_iplimage_params_from_structure (
-      gst_caps_get_structure (caps, 0), width, height, ipldepth, channels, err);
+  return
+      gst_opencv_parse_iplimage_params_from_structure (gst_caps_get_structure
+      (caps, 0), width, height, ipldepth, channels, err);
 }