/* * 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. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <gst/gst.h> #include "gstopencvutils.h" #include "gstcvequalizehist.h" GST_DEBUG_CATEGORY_STATIC (gst_cv_equalize_hist_debug); #define GST_CAT_DEFAULT gst_cv_equalize_hist_debug static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("GRAY8"))); static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("GRAY8"))); G_DEFINE_TYPE (GstCvEqualizeHist, gst_cv_equalize_hist, GST_TYPE_OPENCV_VIDEO_FILTER); static GstFlowReturn gst_cv_equalize_hist_transform (GstOpencvVideoFilter * filter, GstBuffer * buf, IplImage * img, GstBuffer * outbuf, IplImage * outimg); static void gst_cv_equalize_hist_class_init (GstCvEqualizeHistClass * klass) { GstOpencvVideoFilterClass *gstopencvbasefilter_class; GstElementClass *element_class = GST_ELEMENT_CLASS (klass); gstopencvbasefilter_class = (GstOpencvVideoFilterClass *) klass; gstopencvbasefilter_class->cv_trans_func = gst_cv_equalize_hist_transform; 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_static_metadata (element_class, "cvequalizehist", "Transform/Effect/Video", "Applies cvEqualizeHist OpenCV function to the image", "Thiago Santos<thiago.sousa.santos@collabora.co.uk>"); } static void gst_cv_equalize_hist_init (GstCvEqualizeHist * filter) { gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), FALSE); } static GstFlowReturn gst_cv_equalize_hist_transform (GstOpencvVideoFilter * base, GstBuffer * buf, IplImage * img, GstBuffer * outbuf, IplImage * outimg) { cvEqualizeHist (img, outimg); return GST_FLOW_OK; } gboolean gst_cv_equalize_hist_plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (gst_cv_equalize_hist_debug, "cvequalizehist", 0, "cvequalizehist"); return gst_element_register (plugin, "cvequalizehist", GST_RANK_NONE, GST_TYPE_CV_EQUALIZE_HIST); }