1 /* 2 * GStreamer 3 * Copyright (C) <2017> Philippe Renon <philippe_renon@yahoo.fr> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Alternatively, the contents of this file may be used under the 24 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 25 * which case the following provisions apply instead of the ones 26 * mentioned above: 27 * 28 * This library is free software; you can redistribute it and/or 29 * modify it under the terms of the GNU Library General Public 30 * License as published by the Free Software Foundation; either 31 * version 2 of the License, or (at your option) any later version. 32 * 33 * This library is distributed in the hope that it will be useful, 34 * but WITHOUT ANY WARRANTY; without even the implied warranty of 35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 36 * Library General Public License for more details. 37 * 38 * You should have received a copy of the GNU Library General Public 39 * License along with this library; if not, write to the 40 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 41 * Boston, MA 02110-1301, USA. 42 */ 43 44 #ifndef __GST_CAMERA_UNDISTORT_H__ 45 #define __GST_CAMERA_UNDISTORT_H__ 46 47 #include <gst/gst.h> 48 49 #include <gst/opencv/gstopencvvideofilter.h> 50 51 #include <opencv2/core.hpp> 52 53 G_BEGIN_DECLS 54 55 #define GST_TYPE_CAMERA_UNDISTORT \ 56 (gst_camera_undistort_get_type()) 57 #define GST_CAMERA_UNDISTORT(obj) \ 58 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CAMERA_UNDISTORT,GstCameraUndistort)) 59 #define GST_CAMERA_UNDISTORT_CLASS(klass) \ 60 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CAMERA_UNDISTORT,GstCameraUndistortClass)) 61 #define GST_IS_CAMERA_UNDISTORT(obj) \ 62 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CAMERA_UNDISTORT)) 63 #define GST_IS_CAMERA_UNDISTORT_CLASS(klass) \ 64 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CAMERA_UNDISTORT)) 65 typedef struct _GstCameraUndistort GstCameraUndistort; 66 typedef struct _GstCameraUndistortClass GstCameraUndistortClass; 67 68 struct _GstCameraUndistort 69 { 70 GstOpencvVideoFilter cvfilter; 71 72 // settings 73 bool showUndistorted; 74 float alpha; 75 bool crop; 76 77 // opaque string containing opencv calibration settings 78 gchar *settings; 79 80 // opencv calibration settings 81 cv::Mat cameraMatrix, distCoeffs; 82 83 // state 84 bool doUndistort; 85 bool settingsChanged; 86 87 // undistort 88 cv::Size imageSize; 89 cv::Mat map1, map2; 90 cv::Rect validPixROI; 91 }; 92 93 struct _GstCameraUndistortClass 94 { 95 GstOpencvVideoFilterClass parent_class; 96 }; 97 98 GType gst_camera_undistort_get_type (void); 99 100 gboolean gst_camera_undistort_plugin_init (GstPlugin * plugin); 101 102 G_END_DECLS 103 104 #endif /* __GST_CAMERA_UNDISTORT_H__ */ 105