2009-05-13 08:55:31 +00:00
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/*
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* GStreamer
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* Copyright (C) 2005 Thomas Vander Stichele <thomas@apestaart.org>
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* Copyright (C) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2008 Michael Sheldon <mike@mikeasoft.com>
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* Copyright (C) 2009 Noam Lewis <jones.noamle@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-templatematch
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*
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2011-11-18 18:19:32 +00:00
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* Performs template matching on videos and images, providing detected positions via bus messages.
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2009-05-13 08:55:31 +00:00
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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2009-05-25 11:57:11 +00:00
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* gst-launch-0.10 videotestsrc ! decodebin ! ffmpegcolorspace ! templatematch template=/path/to/file.jpg ! ffmpegcolorspace ! xvimagesink
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2009-05-13 08:55:31 +00:00
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* ]|
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <gst/gst.h>
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2010-11-19 20:23:41 +00:00
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#include "gstopencvutils.h"
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2009-05-13 08:55:31 +00:00
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#include "gsttemplatematch.h"
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2011-11-18 18:15:26 +00:00
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GST_DEBUG_CATEGORY_STATIC (gst_template_match_debug);
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#define GST_CAT_DEFAULT gst_template_match_debug
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2009-05-13 08:55:31 +00:00
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2009-05-13 09:19:43 +00:00
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#define DEFAULT_METHOD (3)
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2009-05-13 08:55:31 +00:00
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/* Filter signals and args */
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enum
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{
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2009-05-26 11:59:04 +00:00
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/* FILL ME */
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LAST_SIGNAL
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2009-05-13 08:55:31 +00:00
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};
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enum
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{
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2009-05-26 11:59:04 +00:00
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PROP_0,
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PROP_METHOD,
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PROP_TEMPLATE,
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PROP_DISPLAY,
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2009-05-13 08:55:31 +00:00
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};
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/* the capabilities of the inputs and outputs.
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*/
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
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2009-05-26 11:59:04 +00:00
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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2010-11-19 20:23:41 +00:00
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
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2009-05-13 08:55:31 +00:00
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);
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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2009-05-26 11:59:04 +00:00
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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2010-11-19 20:23:41 +00:00
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
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2009-05-13 08:55:31 +00:00
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);
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2011-11-18 18:15:26 +00:00
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GST_BOILERPLATE (GstTemplateMatch, gst_template_match, GstElement,
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2009-05-26 11:59:04 +00:00
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GST_TYPE_ELEMENT);
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2009-05-13 08:55:31 +00:00
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2011-11-18 18:15:26 +00:00
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static void gst_template_match_finalize (GObject * object);
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static void gst_template_match_set_property (GObject * object, guint prop_id,
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2009-05-26 11:59:04 +00:00
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const GValue * value, GParamSpec * pspec);
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2011-11-18 18:15:26 +00:00
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static void gst_template_match_get_property (GObject * object, guint prop_id,
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2009-05-26 11:59:04 +00:00
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GValue * value, GParamSpec * pspec);
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2009-05-13 08:55:31 +00:00
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2011-11-18 18:15:26 +00:00
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static gboolean gst_template_match_set_caps (GstPad * pad, GstCaps * caps);
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static GstFlowReturn gst_template_match_chain (GstPad * pad, GstBuffer * buf);
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2009-05-13 08:55:31 +00:00
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2011-11-18 18:15:26 +00:00
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static void gst_template_match_load_template (GstTemplateMatch * filter);
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static void gst_template_match_match (IplImage * input, IplImage * template,
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2009-05-26 11:59:04 +00:00
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IplImage * dist_image, double *best_res, CvPoint * best_pos, int method);
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2009-05-13 08:55:31 +00:00
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/* GObject vmethod implementations */
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static void
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2011-11-18 18:15:26 +00:00
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gst_template_match_base_init (gpointer gclass)
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2009-05-13 08:55:31 +00:00
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{
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2009-05-26 11:59:04 +00:00
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GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
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gst_element_class_set_details_simple (element_class,
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"templatematch",
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"Filter/Effect/Video",
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2011-11-18 18:19:32 +00:00
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"Performs template matching on videos and images, providing detected positions via bus messages.",
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2009-05-26 11:59:04 +00:00
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"Noam Lewis <jones.noamle@gmail.com>");
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2011-11-28 13:08:27 +00:00
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gst_element_class_add_static_pad_template (element_class, &src_factory);
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gst_element_class_add_static_pad_template (element_class, &sink_factory);
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2009-05-13 08:55:31 +00:00
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}
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/* initialize the templatematch's class */
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static void
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2011-11-18 18:15:26 +00:00
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gst_template_match_class_init (GstTemplateMatchClass * klass)
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2009-05-13 08:55:31 +00:00
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{
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2009-05-26 11:59:04 +00:00
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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2011-11-18 18:15:26 +00:00
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gobject_class->finalize = gst_template_match_finalize;
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gobject_class->set_property = gst_template_match_set_property;
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gobject_class->get_property = gst_template_match_get_property;
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2009-05-26 11:59:04 +00:00
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g_object_class_install_property (gobject_class, PROP_METHOD,
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g_param_spec_int ("method", "Method",
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"Specifies the way the template must be compared with image regions. 0=SQDIFF, 1=SQDIFF_NORMED, 2=CCOR, 3=CCOR_NORMED, 4=CCOEFF, 5=CCOEFF_NORMED.",
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2010-10-19 13:23:23 +00:00
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0, 5, DEFAULT_METHOD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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2009-05-26 11:59:04 +00:00
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g_object_class_install_property (gobject_class, PROP_TEMPLATE,
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g_param_spec_string ("template", "Template", "Filename of template image",
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2010-10-19 13:23:23 +00:00
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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2009-05-26 11:59:04 +00:00
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g_object_class_install_property (gobject_class, PROP_DISPLAY,
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g_param_spec_boolean ("display", "Display",
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"Sets whether the detected template should be highlighted in the output",
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2010-10-19 13:23:23 +00:00
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TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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2009-05-13 08:55:31 +00:00
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}
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/* initialize the new element
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* instantiate pads and add them to element
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2011-04-22 08:37:29 +00:00
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* set pad callback functions
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2009-05-13 08:55:31 +00:00
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* initialize instance structure
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*/
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static void
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2011-11-18 18:15:26 +00:00
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gst_template_match_init (GstTemplateMatch * filter,
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2009-05-26 11:59:04 +00:00
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GstTemplateMatchClass * gclass)
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2009-05-13 08:55:31 +00:00
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{
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2009-05-26 11:59:04 +00:00
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filter->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
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gst_pad_set_setcaps_function (filter->sinkpad,
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2011-11-18 18:15:26 +00:00
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GST_DEBUG_FUNCPTR (gst_template_match_set_caps));
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2009-05-26 11:59:04 +00:00
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gst_pad_set_getcaps_function (filter->sinkpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
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gst_pad_set_chain_function (filter->sinkpad,
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2011-11-18 18:15:26 +00:00
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GST_DEBUG_FUNCPTR (gst_template_match_chain));
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2009-05-26 11:59:04 +00:00
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filter->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
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gst_pad_set_getcaps_function (filter->srcpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
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gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
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gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
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filter->template = NULL;
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filter->display = TRUE;
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filter->cvTemplateImage = NULL;
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filter->cvDistImage = NULL;
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filter->cvImage = NULL;
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filter->method = DEFAULT_METHOD;
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2011-11-18 18:15:26 +00:00
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gst_template_match_load_template (filter);
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2009-05-13 08:55:31 +00:00
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}
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static void
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2011-11-18 18:15:26 +00:00
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gst_template_match_set_property (GObject * object, guint prop_id,
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2009-05-26 11:59:04 +00:00
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const GValue * value, GParamSpec * pspec)
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2009-05-13 08:55:31 +00:00
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{
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2011-11-18 18:15:26 +00:00
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GstTemplateMatch *filter = GST_TEMPLATE_MATCH (object);
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2009-05-13 08:55:31 +00:00
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2009-05-26 11:59:04 +00:00
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switch (prop_id) {
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2009-05-13 09:19:43 +00:00
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case PROP_METHOD:
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2009-05-26 11:59:04 +00:00
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switch (g_value_get_int (value)) {
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2009-05-13 09:19:43 +00:00
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case 0:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_SQDIFF;
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break;
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2009-05-13 09:19:43 +00:00
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case 1:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_SQDIFF_NORMED;
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break;
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2009-05-13 09:19:43 +00:00
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case 2:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_CCORR;
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break;
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2009-05-13 09:19:43 +00:00
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case 3:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_CCORR_NORMED;
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break;
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2009-05-13 09:19:43 +00:00
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case 4:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_CCOEFF;
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break;
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2009-05-13 09:19:43 +00:00
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case 5:
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2009-05-26 11:59:04 +00:00
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filter->method = CV_TM_CCOEFF_NORMED;
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break;
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}
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break;
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2009-05-13 08:55:31 +00:00
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case PROP_TEMPLATE:
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2010-04-25 19:27:04 +00:00
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filter->template = (char *) g_value_get_string (value);
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2011-11-18 18:15:26 +00:00
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gst_template_match_load_template (filter);
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2009-05-26 11:59:04 +00:00
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break;
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2009-05-13 08:55:31 +00:00
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case PROP_DISPLAY:
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2009-05-26 11:59:04 +00:00
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filter->display = g_value_get_boolean (value);
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break;
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2009-05-13 08:55:31 +00:00
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default:
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2009-05-26 11:59:04 +00:00
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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2009-05-13 08:55:31 +00:00
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}
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static void
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2011-11-18 18:15:26 +00:00
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gst_template_match_get_property (GObject * object, guint prop_id,
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2009-05-26 11:59:04 +00:00
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GValue * value, GParamSpec * pspec)
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2009-05-13 08:55:31 +00:00
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{
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2011-11-18 18:15:26 +00:00
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GstTemplateMatch *filter = GST_TEMPLATE_MATCH (object);
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2009-05-13 08:55:31 +00:00
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2009-05-26 11:59:04 +00:00
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switch (prop_id) {
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2009-05-13 09:19:43 +00:00
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case PROP_METHOD:
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2009-05-26 11:59:04 +00:00
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g_value_set_int (value, filter->method);
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break;
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2009-05-13 08:55:31 +00:00
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case PROP_TEMPLATE:
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2009-05-26 11:59:04 +00:00
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g_value_set_string (value, filter->template);
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break;
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2009-05-13 08:55:31 +00:00
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case PROP_DISPLAY:
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2009-05-26 11:59:04 +00:00
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g_value_set_boolean (value, filter->display);
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break;
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2009-05-13 08:55:31 +00:00
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default:
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2009-05-26 11:59:04 +00:00
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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2009-05-13 08:55:31 +00:00
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}
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/* GstElement vmethod implementations */
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/* this function handles the link with other elements */
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static gboolean
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2011-11-18 18:15:26 +00:00
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gst_template_match_set_caps (GstPad * pad, GstCaps * caps)
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2009-05-13 08:55:31 +00:00
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{
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2009-05-26 11:59:04 +00:00
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GstTemplateMatch *filter;
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GstPad *otherpad;
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gint width, height;
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GstStructure *structure;
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2009-05-13 08:55:31 +00:00
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2011-11-18 18:15:26 +00:00
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filter = GST_TEMPLATE_MATCH (gst_pad_get_parent (pad));
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2009-05-26 11:59:04 +00:00
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_get_int (structure, "width", &width);
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gst_structure_get_int (structure, "height", &height);
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2009-05-13 08:55:31 +00:00
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2009-05-26 11:59:04 +00:00
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filter->cvImage =
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|
|
cvCreateImageHeader (cvSize (width, height), IPL_DEPTH_8U, 3);
|
2009-05-13 08:55:31 +00:00
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
|
|
|
|
gst_object_unref (filter);
|
2009-05-13 08:55:31 +00:00
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
return gst_pad_set_caps (otherpad, caps);
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
static void
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_finalize (GObject * object)
|
2009-05-13 08:55:31 +00:00
|
|
|
{
|
2009-05-26 11:59:04 +00:00
|
|
|
GstTemplateMatch *filter;
|
2011-11-18 18:15:26 +00:00
|
|
|
filter = GST_TEMPLATE_MATCH (object);
|
2009-05-26 11:59:04 +00:00
|
|
|
|
|
|
|
if (filter->cvImage) {
|
|
|
|
cvReleaseImageHeader (&filter->cvImage);
|
|
|
|
}
|
|
|
|
if (filter->cvDistImage) {
|
|
|
|
cvReleaseImage (&filter->cvDistImage);
|
|
|
|
}
|
|
|
|
if (filter->cvTemplateImage) {
|
|
|
|
cvReleaseImage (&filter->cvTemplateImage);
|
|
|
|
}
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* chain function
|
|
|
|
* this function does the actual processing
|
|
|
|
*/
|
|
|
|
static GstFlowReturn
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_chain (GstPad * pad, GstBuffer * buf)
|
2009-05-13 08:55:31 +00:00
|
|
|
{
|
2009-05-26 11:59:04 +00:00
|
|
|
GstTemplateMatch *filter;
|
|
|
|
CvPoint best_pos;
|
|
|
|
double best_res;
|
|
|
|
|
2011-11-18 18:15:26 +00:00
|
|
|
filter = GST_TEMPLATE_MATCH (GST_OBJECT_PARENT (pad));
|
2010-04-26 20:34:12 +00:00
|
|
|
|
|
|
|
/* FIXME Why template == NULL returns OK?
|
|
|
|
* shouldn't it be a passthrough instead? */
|
2009-05-26 11:59:04 +00:00
|
|
|
if ((!filter) || (!buf) || filter->template == NULL) {
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
}
|
2011-04-22 08:37:29 +00:00
|
|
|
GST_DEBUG_OBJECT (filter, "Buffer size %u ", GST_BUFFER_SIZE (buf));
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
filter->cvImage->imageData = (char *) GST_BUFFER_DATA (buf);
|
|
|
|
|
|
|
|
if (!filter->cvDistImage) {
|
2011-04-22 08:37:29 +00:00
|
|
|
if (filter->cvTemplateImage->width > filter->cvImage->width) {
|
|
|
|
GST_WARNING ("Template Image is wider than input image");
|
|
|
|
} else if (filter->cvTemplateImage->height > filter->cvImage->height) {
|
|
|
|
GST_WARNING ("Template Image is taller than input image");
|
|
|
|
} else {
|
|
|
|
|
|
|
|
GST_DEBUG_OBJECT (filter, "cvCreateImage (Size(%d-%d+1,%d) %d, %d)",
|
|
|
|
filter->cvImage->width, filter->cvTemplateImage->width,
|
|
|
|
filter->cvImage->height - filter->cvTemplateImage->height + 1,
|
|
|
|
IPL_DEPTH_32F, 1);
|
|
|
|
filter->cvDistImage =
|
|
|
|
cvCreateImage (cvSize (filter->cvImage->width -
|
|
|
|
filter->cvTemplateImage->width + 1,
|
|
|
|
filter->cvImage->height - filter->cvTemplateImage->height + 1),
|
|
|
|
IPL_DEPTH_32F, 1);
|
|
|
|
if (!filter->cvDistImage) {
|
|
|
|
GST_WARNING ("Couldn't create dist image.");
|
|
|
|
}
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
2009-05-26 11:59:04 +00:00
|
|
|
}
|
2011-04-22 08:37:29 +00:00
|
|
|
if (filter->cvTemplateImage && filter->cvImage && filter->cvDistImage) {
|
2010-09-08 17:59:54 +00:00
|
|
|
GstStructure *s;
|
|
|
|
GstMessage *m;
|
|
|
|
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_match (filter->cvImage, filter->cvTemplateImage,
|
2009-05-26 11:59:04 +00:00
|
|
|
filter->cvDistImage, &best_res, &best_pos, filter->method);
|
|
|
|
|
2010-09-08 17:59:54 +00:00
|
|
|
s = gst_structure_new ("template_match",
|
2009-05-26 11:59:04 +00:00
|
|
|
"x", G_TYPE_UINT, best_pos.x,
|
|
|
|
"y", G_TYPE_UINT, best_pos.y,
|
|
|
|
"width", G_TYPE_UINT, filter->cvTemplateImage->width,
|
|
|
|
"height", G_TYPE_UINT, filter->cvTemplateImage->height,
|
2010-09-08 17:59:54 +00:00
|
|
|
"result", G_TYPE_DOUBLE, best_res, NULL);
|
2009-05-26 11:59:04 +00:00
|
|
|
|
2010-09-08 17:59:54 +00:00
|
|
|
m = gst_message_new_element (GST_OBJECT (filter), s);
|
2009-05-26 11:59:04 +00:00
|
|
|
gst_element_post_message (GST_ELEMENT (filter), m);
|
|
|
|
|
|
|
|
if (filter->display) {
|
|
|
|
CvPoint corner = best_pos;
|
2010-04-26 20:34:12 +00:00
|
|
|
|
|
|
|
buf = gst_buffer_make_writable (buf);
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
corner.x += filter->cvTemplateImage->width;
|
|
|
|
corner.y += filter->cvTemplateImage->height;
|
|
|
|
cvRectangle (filter->cvImage, best_pos, corner, CV_RGB (255, 32, 32), 3,
|
|
|
|
8, 0);
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return gst_pad_push (filter->srcpad, buf);
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
static void
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_match (IplImage * input, IplImage * template,
|
2009-05-26 11:59:04 +00:00
|
|
|
IplImage * dist_image, double *best_res, CvPoint * best_pos, int method)
|
2009-05-13 08:55:31 +00:00
|
|
|
{
|
2009-05-26 11:59:04 +00:00
|
|
|
double dist_min = 0, dist_max = 0;
|
|
|
|
CvPoint min_pos, max_pos;
|
|
|
|
cvMatchTemplate (input, template, dist_image, method);
|
|
|
|
cvMinMaxLoc (dist_image, &dist_min, &dist_max, &min_pos, &max_pos, NULL);
|
|
|
|
if ((CV_TM_SQDIFF_NORMED == method) || (CV_TM_SQDIFF == method)) {
|
|
|
|
*best_res = dist_min;
|
|
|
|
*best_pos = min_pos;
|
|
|
|
if (CV_TM_SQDIFF_NORMED == method) {
|
|
|
|
*best_res = 1 - *best_res;
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
2009-05-26 11:59:04 +00:00
|
|
|
} else {
|
|
|
|
*best_res = dist_max;
|
|
|
|
*best_pos = max_pos;
|
|
|
|
}
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
static void
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_load_template (GstTemplateMatch * filter)
|
2009-05-26 11:59:04 +00:00
|
|
|
{
|
|
|
|
if (filter->template) {
|
|
|
|
filter->cvTemplateImage =
|
|
|
|
cvLoadImage (filter->template, CV_LOAD_IMAGE_COLOR);
|
2011-04-22 08:37:29 +00:00
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
if (!filter->cvTemplateImage) {
|
2011-04-22 08:37:29 +00:00
|
|
|
GST_WARNING ("Couldn't load template image: %s. error: %s",
|
|
|
|
filter->template, g_strerror (errno));
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
2009-05-26 11:59:04 +00:00
|
|
|
}
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* entry point to initialize the plug-in
|
|
|
|
* initialize the plug-in itself
|
|
|
|
* register the element factories and other features
|
|
|
|
*/
|
2009-05-26 11:59:04 +00:00
|
|
|
gboolean
|
2011-11-18 18:15:26 +00:00
|
|
|
gst_template_match_plugin_init (GstPlugin * templatematch)
|
2009-05-13 08:55:31 +00:00
|
|
|
{
|
2009-05-26 11:59:04 +00:00
|
|
|
/* debug category for fltering log messages */
|
2011-11-18 18:15:26 +00:00
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_template_match_debug, "templatematch",
|
2009-05-26 11:59:04 +00:00
|
|
|
0,
|
|
|
|
"Performs template matching on videos and images, providing detected positions via bus messages");
|
2009-05-13 08:55:31 +00:00
|
|
|
|
2009-05-26 11:59:04 +00:00
|
|
|
return gst_element_register (templatematch, "templatematch", GST_RANK_NONE,
|
2011-11-18 18:15:26 +00:00
|
|
|
GST_TYPE_TEMPLATE_MATCH);
|
2009-05-13 08:55:31 +00:00
|
|
|
}
|