2 Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
35 /** @file src/openjpeg_image.h
36 * @brief OpenJPEGImage class
44 typedef struct opj_image opj_image_t;
50 /** @class OpenJPEGImage
51 * @brief A wrapper of libopenjpeg's opj_image_t
56 /** Construct an OpenJPEGImage, taking ownership of the opj_image_t */
57 explicit OpenJPEGImage (opj_image_t *);
59 explicit OpenJPEGImage (OpenJPEGImage const & other);
61 /** Construct a new OpenJPEGImage with undefined contents
62 * @param size Size for the frame in pixels
64 explicit OpenJPEGImage (Size);
66 /** @param data_16 XYZ/RGB image data in packed 16:16:16, 48bpp with
67 * the 2-byte value for each component stored as little-endian
69 OpenJPEGImage (uint8_t const * in_16, dcp::Size size, int stride);
73 /** @param c Component index (0, 1 or 2)
74 * @return Pointer to the data for component c.
76 int* data (int) const;
78 /** @return Size of the image in pixels */
81 int precision (int component) const;
83 int factor (int component) const;
85 /** @return Pointer to opj_image_t struct. The caller
86 * must not delete this.
88 opj_image_t* opj_image () const {
93 void create (Size size);
95 opj_image_t* _opj_image = nullptr; ///< opj_image_t that we are managing