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gstopencvbasetrans: Adds this new base class

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Adds GstOpencvBaseTransform as base class for simple 1:1
opencv filters
This commit is contained in:
Thiago Santos 2010-05-05 01:24:54 -03:00
parent b8b0c39a63
commit 6fd5cb9b62
4 changed files with 403 additions and 5 deletions
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10
ext/opencv/Makefile.am
View file

@ -5,11 +5,12 @@ SUBDIRS = edgedetect faceblur facedetect pyramidsegment templatematch textwrite
plugin_LTLIBRARIES = libgstopencv.la
# sources used to compile this plug-in
libgstopencv_la_SOURCES = gstopencv.c
libgstopencv_la_SOURCES = gstopencv.c gstopencvbasetrans.c
# flags used to compile this facedetect
# add other _CFLAGS and _LIBS as needed
libgstopencv_la_CFLAGS = $(GST_CFLAGS) $(OPENCV_CFLAGS) \
libgstopencv_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) $(OPENCV_CFLAGS) \
-I${top_srcdir}/src \
-I${top_srcdir}/ext/opencv/edgedetect \
-I${top_srcdir}/ext/opencv/faceblur \
-I${top_srcdir}/ext/opencv/facedetect \
@ -17,8 +18,7 @@ libgstopencv_la_CFLAGS = $(GST_CFLAGS) $(OPENCV_CFLAGS) \
-I${top_srcdir}/ext/opencv/templatematch \
-I${top_srcdir}/ext/opencv/textwrite
libgstopencv_la_LIBADD = $(GST_LIBS) $(OPENCV_LIBS) \
$(top_builddir)/ext/opencv/edgedetect/libgstedgedetect.la \
libgstopencv_la_LIBADD = $(GST_LIBS) $(GST_BASE_LIBS) $(OPENCV_LIBS) \
$(top_builddir)/ext/opencv/faceblur/libgstfaceblur.la \
$(top_builddir)/ext/opencv/facedetect/libgstfacedetect.la \
$(top_builddir)/ext/opencv/pyramidsegment/libgstpyramidsegment.la \
@ -36,4 +36,4 @@ libgstopencv_la_DEPENDENCIES = \
$(top_builddir)/ext/opencv/textwrite/libgsttextwrite.la
# headers we need but don't want installed
noinst_HEADERS =
noinst_HEADERS = gstopencvbasetrans.h

13
ext/opencv/basicfilters/Makefile.am Normal file
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@ -0,0 +1,13 @@
noinst_LTLIBRARIES = libgstbasicfilters.la
# sources used to compile this plug-in
libgstbasicfilters_la_SOURCES = gstcvsmooth.c
# flags used to compile this pyramidsegment
# add other _CFLAGS and _LIBS as needed
libgstbasicfilters_la_CFLAGS = $(GST_CFLAGS) $(OPENCV_CFLAGS) -I..
libgstbasicfilters_la_LIBADD = $(GST_LIBS) $(OPENCV_LIBS)
libgstbasicfilters_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
# headers we need but don't want installed
noinst_HEADERS = gstcvsmooth.h

287
ext/opencv/gstopencvbasetrans.c Normal file
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@ -0,0 +1,287 @@
/*
* 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.
*/
/* TODO opencv can do scaling for some cases */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#include "gstopencvbasetrans.h"
GST_DEBUG_CATEGORY_STATIC (gst_opencv_base_transform_debug);
#define GST_CAT_DEFAULT gst_opencv_base_transform_debug
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0
};
static GstElementClass *parent_class = NULL;
static void gst_opencv_base_transform_class_init (GstOpencvBaseTransformClass *
klass);
static void gst_opencv_base_transform_init (GstOpencvBaseTransform * trans,
GstOpencvBaseTransformClass * klass);
static void gst_opencv_base_transform_base_init (gpointer gclass);
static gboolean gst_opencv_base_transform_set_caps (GstBaseTransform * trans,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_opencv_base_transform_transform_ip (GstBaseTransform *
trans, GstBuffer * buf);
static GstFlowReturn gst_opencv_base_transform_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_opencv_base_transform_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, guint * size);
static void gst_opencv_base_transform_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_opencv_base_transform_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
GType
gst_opencv_base_transform_get_type (void)
{
static volatile gsize opencv_base_transform_type = 0;
if (g_once_init_enter (&opencv_base_transform_type)) {
GType _type;
static const GTypeInfo opencv_base_transform_info = {
sizeof (GstOpencvBaseTransformClass),
(GBaseInitFunc) gst_opencv_base_transform_base_init,
NULL,
(GClassInitFunc) gst_opencv_base_transform_class_init,
NULL,
NULL,
sizeof (GstOpencvBaseTransform),
0,
(GInstanceInitFunc) gst_opencv_base_transform_init,
};
_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,
"GstOpencvBaseTransform", &opencv_base_transform_info, G_TYPE_FLAG_ABSTRACT);
g_once_init_leave (&opencv_base_transform_type, _type);
}
return opencv_base_transform_type;
}
/* Clean up */
static void
gst_opencv_base_transform_finalize (GObject * obj)
{
GstOpencvBaseTransform *transform = GST_OPENCV_BASE_TRANSFORM (obj);
if (transform->cvImage)
cvReleaseImage (&transform->cvImage);
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
/* GObject vmethod implementations */
static void
gst_opencv_base_transform_base_init (gpointer gclass)
{
}
static void
gst_opencv_base_transform_class_init (GstOpencvBaseTransformClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseTransformClass *basetrans_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
basetrans_class = (GstBaseTransformClass *) klass;
parent_class = g_type_class_peek_parent (klass);
GST_DEBUG_CATEGORY_INIT (gst_opencv_base_transform_debug, "opencvbasetransform", 0,
"opencvbasetransform element");
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_opencv_base_transform_finalize);
gobject_class->set_property = gst_opencv_base_transform_set_property;
gobject_class->get_property = gst_opencv_base_transform_get_property;
basetrans_class->transform = gst_opencv_base_transform_transform;
basetrans_class->transform_ip = gst_opencv_base_transform_transform_ip;
basetrans_class->set_caps = gst_opencv_base_transform_set_caps;
basetrans_class->get_unit_size = gst_opencv_base_transform_get_unit_size;
}
static void
gst_opencv_base_transform_init (GstOpencvBaseTransform * transform,
GstOpencvBaseTransformClass * bclass)
{
}
static GstFlowReturn
gst_opencv_base_transform_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstOpencvBaseTransform *transform;
GstOpencvBaseTransformClass *fclass;
transform = GST_OPENCV_BASE_TRANSFORM (trans);
fclass = GST_OPENCV_BASE_TRANSFORM_GET_CLASS (transform);
g_return_val_if_fail (fclass->cv_trans_func != NULL, GST_FLOW_ERROR);
g_return_val_if_fail (transform->cvImage != NULL, GST_FLOW_ERROR);
g_return_val_if_fail (transform->out_cvImage != NULL, GST_FLOW_ERROR);
transform->cvImage->imageData = (char *) GST_BUFFER_DATA (inbuf);
transform->out_cvImage->imageData = (char *) GST_BUFFER_DATA (outbuf);
return fclass->cv_trans_func (transform, inbuf, transform->cvImage, outbuf,
transform->out_cvImage);
}
static GstFlowReturn
gst_opencv_base_transform_transform_ip (GstBaseTransform * trans,
GstBuffer * buffer)
{
GstOpencvBaseTransform *transform;
GstOpencvBaseTransformClass *fclass;
transform = GST_OPENCV_BASE_TRANSFORM (trans);
fclass = GST_OPENCV_BASE_TRANSFORM_GET_CLASS (transform);
g_return_val_if_fail (fclass->cv_trans_ip_func != NULL, GST_FLOW_ERROR);
g_return_val_if_fail (transform->cvImage != NULL, GST_FLOW_ERROR);
buffer = gst_buffer_make_writable (buffer);
transform->cvImage->imageData = (char *) GST_BUFFER_DATA (buffer);
/* FIXME how to release buffer? */
return fclass->cv_trans_ip_func (transform, buffer, transform->cvImage);
}
static gboolean
gst_opencv_base_transform_set_caps (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps)
{
GstOpencvBaseTransform *transform = GST_OPENCV_BASE_TRANSFORM (trans);
GstStructure *structure;
gint width, height;
structure = gst_caps_get_structure (incaps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height)) {
GST_WARNING_OBJECT (transform, "No width/height on caps");
return FALSE;
}
if (transform->cvImage) {
cvReleaseImage (&transform->cvImage);
}
if (transform->out_cvImage) {
cvReleaseImage (&transform->out_cvImage);
}
/* FIXME - how do we know it is IPL_DEPTH_8U? */
transform->cvImage =
cvCreateImageHeader (cvSize (width, height), IPL_DEPTH_8U, 3);
transform->out_cvImage =
cvCreateImageHeader (cvSize (width, height), IPL_DEPTH_8U, 3);
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (transform),
transform->in_place);
return TRUE;
}
static gboolean
gst_opencv_base_transform_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, guint * size)
{
gint width, height;
gint bpp;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height) ||
!gst_structure_get_int (structure, "bpp", &bpp)) {
return FALSE;
}
*size = width * height * bpp / 8;
return TRUE;
}
static void
gst_opencv_base_transform_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_opencv_base_transform_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
void
gst_opencv_base_transform_set_in_place (GstOpencvBaseTransform * transform, gboolean ip)
{
transform->in_place = ip;
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (transform), ip);
}

98
ext/opencv/gstopencvbasetrans.h Normal file
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@ -0,0 +1,98 @@
/*
* 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_OPENCV_BASE_TRANSFORM_H__
#define __GST_OPENCV_BASE_TRANSFORM_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <cv.h>
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
#define GST_TYPE_OPENCV_BASE_TRANSFORM \
(gst_opencv_base_transform_get_type())
#define GST_OPENCV_BASE_TRANSFORM(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENCV_BASE_TRANSFORM,GstOpencvBaseTransform))
#define GST_OPENCV_BASE_TRANSFORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENCV_BASE_TRANSFORM,GstOpencvBaseTransformClass))
#define GST_IS_OPENCV_BASE_TRANSFORM(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENCV_BASE_TRANSFORM))
#define GST_IS_OPENCV_BASE_TRANSFORM_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENCV_BASE_TRANSFORM))
#define GST_OPENCV_BASE_TRANSFORM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OPENCV_BASE_TRANSFORM,GstOpencvBaseTransformClass))
typedef struct _GstOpencvBaseTransform GstOpencvBaseTransform;
typedef struct _GstOpencvBaseTransformClass GstOpencvBaseTransformClass;
typedef GstFlowReturn (*GstOpencvBaseTransformTransformIPFunc)
(GstOpencvBaseTransform * transform, GstBuffer * buffer, IplImage * img);
typedef GstFlowReturn (*GstOpencvBaseTransformTransformFunc)
(GstOpencvBaseTransform * transform, GstBuffer * buffer, IplImage * img,
GstBuffer * outbuf, IplImage * outimg);
struct _GstOpencvBaseTransform
{
GstBaseTransform trans;
gboolean in_place;
IplImage *cvImage;
IplImage *out_cvImage;
};
struct _GstOpencvBaseTransformClass
{
GstBaseTransformClass parent_class;
GstOpencvBaseTransformTransformFunc cv_trans_func;
GstOpencvBaseTransformTransformIPFunc cv_trans_ip_func;
};
GType gst_opencv_base_transform_get_type (void);
void gst_opencv_base_transform_set_in_place (GstOpencvBaseTransform * transform,
gboolean ip);
G_END_DECLS
#endif /* __GST_OPENCV_BASE_TRANSFORM_H__ */