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/*
* GStreamer
* Copyright (C) <2017> Philippe Renon <philippe_renon@yahoo.fr>
*
* 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_CAMERA_CALIBRATE_H__
#define __GST_CAMERA_CALIBRATE_H__
#include <gst/gst.h>
#include <gst/opencv/gstopencvvideofilter.h>
#include <opencv2/core.hpp>
G_BEGIN_DECLS
#define GST_TYPE_CAMERA_CALIBRATE \
(gst_camera_calibrate_get_type())
#define GST_CAMERA_CALIBRATE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAMERA_CALIBRATE,GstCameraCalibrate))
#define GST_CAMERA_CALIBRATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAMERA_CALIBRATE,GstCameraCalibrateClass))
#define GST_IS_CAMERA_CALIBRATE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAMERA_CALIBRATE))
#define GST_IS_CAMERA_CALIBRATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAMERA_CALIBRATE))
typedef struct _GstCameraCalibrate GstCameraCalibrate;
typedef struct _GstCameraCalibrateClass GstCameraCalibrateClass;
enum _GstCameraCalibrationPattern {
GST_CAMERA_CALIBRATION_PATTERN_CHESSBOARD,
GST_CAMERA_CALIBRATION_PATTERN_CIRCLES_GRID,
GST_CAMERA_CALIBRATION_PATTERN_ASYMMETRIC_CIRCLES_GRID
};
struct _GstCameraCalibrate
{
GstOpencvVideoFilter cvfilter;
// settings
gint calibrationPattern; // One of the chessboard, circles, or asymmetric circle pattern
cv::Size boardSize; // The size of the board -> Number of items by width and height
float squareSize; // The size of a square in your defined unit (point, millimeter,etc).
float aspectRatio; // The aspect ratio
bool cornerSubPix; //
bool calibZeroTangentDist; // Assume zero tangential distortion
bool calibFixPrincipalPoint; // Fix the principal point at the center
bool useFisheye; // use fisheye camera model for calibration
int nrFrames; // The number of frames to use from the input for calibration
int delay; // In case of a video input
bool showUndistorsed; // Show undistorted images after calibration
bool showCorners; // Show corners
// state
int flags;
int mode;
clock_t prevTimestamp;
std::vector<std::vector<cv::Point2f>> imagePoints;
cv::Mat cameraMatrix, distCoeffs;
// opaque string containing opencv calibration settings
gchar *settings;
};
struct _GstCameraCalibrateClass
{
GstOpencvVideoFilterClass parent_class;
};
GType gst_camera_calibrate_get_type (void);
gboolean gst_camera_calibrate_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_CAMERA_CALIBRATE_H__ */
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