mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 18:51:11 +00:00
120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/*
|
|
* 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 "gstcverode.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_cv_erode_debug);
|
|
#define GST_CAT_DEFAULT gst_cv_erode_debug
|
|
|
|
G_DEFINE_TYPE (GstCvErode, gst_cv_erode, GST_TYPE_CV_DILATE_ERODE);
|
|
|
|
static GstFlowReturn gst_cv_erode_transform_ip (GstOpencvVideoFilter *
|
|
filter, GstBuffer * buf, IplImage * img);
|
|
static GstFlowReturn gst_cv_erode_transform (GstOpencvVideoFilter * filter,
|
|
GstBuffer * buf, IplImage * img, GstBuffer * outbuf, IplImage * outimg);
|
|
|
|
/* initialize the cverode's class */
|
|
static void
|
|
gst_cv_erode_class_init (GstCvErodeClass * klass)
|
|
{
|
|
GstOpencvVideoFilterClass *gstopencvbasefilter_class;
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
|
|
|
gstopencvbasefilter_class = (GstOpencvVideoFilterClass *) klass;
|
|
|
|
gstopencvbasefilter_class->cv_trans_ip_func = gst_cv_erode_transform_ip;
|
|
gstopencvbasefilter_class->cv_trans_func = gst_cv_erode_transform;
|
|
gst_element_class_set_metadata (element_class,
|
|
"cverode",
|
|
"Transform/Effect/Video",
|
|
"Applies cvErode OpenCV function to the image",
|
|
"Thiago Santos<thiago.sousa.santos@collabora.co.uk>");
|
|
}
|
|
|
|
/* initialize the new element
|
|
* instantiate pads and add them to element
|
|
* set pad calback functions
|
|
* initialize instance structure
|
|
*/
|
|
static void
|
|
gst_cv_erode_init (GstCvErode * filter)
|
|
{
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_cv_erode_transform (GstOpencvVideoFilter * base, GstBuffer * buf,
|
|
IplImage * img, GstBuffer * outbuf, IplImage * outimg)
|
|
{
|
|
GstCvDilateErode *filter = GST_CV_DILATE_ERODE (base);
|
|
|
|
/* TODO support kernel as a parameter */
|
|
cvErode (img, outimg, NULL, filter->iterations);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_cv_erode_transform_ip (GstOpencvVideoFilter * base, GstBuffer * buf,
|
|
IplImage * img)
|
|
{
|
|
GstCvDilateErode *filter = GST_CV_DILATE_ERODE (base);
|
|
|
|
cvErode (img, img, NULL, filter->iterations);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
gboolean
|
|
gst_cv_erode_plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (gst_cv_erode_debug, "cverode", 0, "cverode");
|
|
|
|
return gst_element_register (plugin, "cverode", GST_RANK_NONE,
|
|
GST_TYPE_CV_ERODE);
|
|
}
|