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/*
* GStreamer
* Copyright (C) 2013 Miguel Casas-Sanchez <miguelecasassanchez@gmail.com>
*
* 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.
*/
#ifndef __GST_SEGMENTATION_H__
#define __GST_SEGMENTATION_H__
#include <gst/gst.h>
#include <gst/opencv/gstopencvvideofilter.h>
#include <opencv2/video.hpp>
#include <opencv2/core.hpp>
#include <opencv2/bgsegm.hpp>
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
#define GST_TYPE_SEGMENTATION \
(gst_segmentation_get_type())
#define GST_SEGMENTATION(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SEGMENTATION,GstSegmentation))
#define GST_SEGMENTATION_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SEGMENTATION,GstSegmentationClass))
#define GST_IS_SEGMENTATION(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SEGMENTATION))
#define GST_IS_SEGMENTATION_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SEGMENTATION))
typedef struct _GstSegmentation GstSegmentation;
typedef struct _GstSegmentationClass GstSegmentationClass;
#define CHANNELS 3
typedef struct ce
{
unsigned char learnHigh[CHANNELS]; /* High side threshold for learning */
unsigned char learnLow[CHANNELS]; /* Low side threshold for learning */
unsigned char max[CHANNELS]; /* High side of box boundary */
unsigned char min[CHANNELS]; /* Low side of box boundary */
int t_last_update; /* Allow us to kill stale entries */
int stale; /* max negative run (longest period of inactivity) */
} code_element;
typedef struct code_book
{
code_element **cb;
int numEntries;
int t; /*count every access */
} codeBook;
struct _GstSegmentation
{
GstOpencvVideoFilter element;
gint method;
gboolean test_mode;
gint width, height;
cv::Mat cvRGB;
cv::Mat cvYUV;
cv::Mat cvFG; /* used for the alpha BW 1ch image composition */
cv::Mat ch1, ch2, ch3;
int framecount;
/* for codebook approach */
codeBook *TcodeBook;
int learning_interval;
/* for MOG methods */
cv::Ptr<cv::BackgroundSubtractor> mog; /* cv::BackgroundSubtractorMOG */
cv::Ptr<cv::BackgroundSubtractorMOG2> mog2; /* cv::BackgroundSubtractorMOG2 */
double learning_rate;
};
struct _GstSegmentationClass
{
GstOpencvVideoFilterClass parent_class;
};
GType gst_segmentation_get_type (void);
GST_ELEMENT_REGISTER_DECLARE (segmentation);
G_END_DECLS
#endif /* __GST_SEGMENTATION_H__ */
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