1 /* 2 * GStreamer 3 * Copyright (C) 2016 - 2018 Prassel S.r.l 4 * Author: Nicola Murino <nicola.murino@gmail.com> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Alternatively, the contents of this file may be used under the 25 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 26 * which case the following provisions apply instead of the ones 27 * mentioned above: 28 * 29 * This library is free software; you can redistribute it and/or 30 * modify it under the terms of the GNU Library General Public 31 * License as published by the Free Software Foundation; either 32 * version 2 of the License, or (at your option) any later version. 33 * 34 * This library is distributed in the hope that it will be useful, 35 * but WITHOUT ANY WARRANTY; without even the implied warranty of 36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 37 * Library General Public License for more details. 38 * 39 * You should have received a copy of the GNU Library General Public 40 * License along with this library; if not, write to the 41 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 42 * Boston, MA 02110-1301, USA. 43 */ 44 45 #ifndef __GST_DEWARP_H__ 46 #define __GST_DEWARP_H__ 47 48 #include <gst/gst.h> 49 #include <gst/opencv/gstopencvvideofilter.h> 50 #include <opencv2/imgproc.hpp> 51 52 G_BEGIN_DECLS 53 /* #defines don't like whitespacey bits */ 54 #define GST_TYPE_DEWARP \ 55 (gst_dewarp_get_type()) 56 #define GST_DEWARP(obj) \ 57 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DEWARP,GstDewarp)) 58 #define GST_DEWARP_CLASS(klass) \ 59 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DEWARP,GstDewarpClass)) 60 #define GST_IS_DEWARP(obj) \ 61 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DEWARP)) 62 #define GST_IS_DEWARP_CLASS(klass) \ 63 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DEWARP)) 64 typedef struct _GstDewarp GstDewarp; 65 typedef struct _GstDewarpClass GstDewarpClass; 66 67 enum _GstDewarpDisplayMode { 68 GST_DEWARP_DISPLAY_PANORAMA = 0, 69 GST_DEWARP_DISPLAY_DOUBLE_PANORAMA = 1, 70 GST_DEWARP_DISPLAY_QUAD_VIEW = 2 71 }; 72 73 enum _GstDewarpInterpolationMode { 74 GST_DEWARP_INTER_NEAREST = 0, 75 GST_DEWARP_INTER_LINEAR = 1, 76 GST_DEWARP_INTER_CUBIC = 2, 77 GST_DEWARP_INTER_LANCZOS4 = 3 78 }; 79 80 struct _GstDewarp 81 { 82 GstOpencvVideoFilter element; 83 cv::Mat map_x; 84 cv::Mat map_y; 85 gdouble x_center; 86 gdouble y_center; 87 gdouble inner_radius; 88 gdouble outer_radius; 89 gdouble remap_correction_x; 90 gdouble remap_correction_y; 91 gboolean need_map_update; 92 gint pad_sink_width; 93 gint pad_sink_height; 94 gint in_width; 95 gint in_height; 96 gint out_width; 97 gint out_height; 98 gint display_mode; 99 gint interpolation_mode; 100 }; 101 102 struct _GstDewarpClass 103 { 104 GstOpencvVideoFilterClass parent_class; 105 }; 106 107 GType gst_dewarp_get_type (void); 108 109 gboolean gst_dewarp_plugin_init (GstPlugin * plugin); 110 111 G_END_DECLS 112 #endif /* __GST_DEWARP_H__ */ 113 114