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| 4680 | right-hear | 1 | /* |
| 2 | * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
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| 3 | * Copyright (c) 2002-2007, Professor Benoit Macq |
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| 4 | * Copyright (c) 2002-2003, Yannick Verschueren |
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| 5 | * Copyright (c) 2005, Herve Drolon, FreeImage Team |
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| 6 | * All rights reserved. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * 1. Redistributions of source code must retain the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer. |
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer in the |
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| 15 | * documentation and/or other materials provided with the distribution. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
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| 18 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 21 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 25 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 26 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 27 | * POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | #ifndef __JP2_H |
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| 30 | #define __JP2_H |
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| 31 | /** |
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| 32 | @file jp2.h |
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| 33 | @brief The JPEG-2000 file format Reader/Writer (JP2) |
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| 34 | |||
| 35 | */ |
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| 36 | |||
| 37 | /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */ |
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| 38 | /*@{*/ |
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| 39 | |||
| 40 | #define JPIP_JPIP 0x6a706970 |
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| 41 | |||
| 42 | #define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */ |
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| 43 | #define JP2_FTYP 0x66747970 /**< File type box */ |
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| 44 | #define JP2_JP2H 0x6a703268 /**< JP2 header box */ |
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| 45 | #define JP2_IHDR 0x69686472 /**< Image header box */ |
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| 46 | #define JP2_COLR 0x636f6c72 /**< Colour specification box */ |
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| 47 | #define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */ |
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| 48 | #define JP2_URL 0x75726c20 /**< URL box */ |
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| 49 | #define JP2_DTBL 0x6474626c /**< Data Reference box */ |
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| 50 | #define JP2_BPCC 0x62706363 /**< Bits per component box */ |
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| 51 | #define JP2_JP2 0x6a703220 /**< File type fields */ |
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| 52 | #define JP2_PCLR 0x70636c72 /**< Palette box */ |
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| 53 | #define JP2_CMAP 0x636d6170 /**< Component Mapping box */ |
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| 54 | #define JP2_CDEF 0x63646566 /**< Channel Definition box */ |
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| 55 | |||
| 56 | /* ----------------------------------------------------------------------- */ |
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| 57 | /** |
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| 58 | Channel description: channel index, type, assocation |
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| 59 | */ |
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| 60 | typedef struct opj_jp2_cdef_info |
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| 61 | { |
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| 62 | unsigned short cn, typ, asoc; |
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| 63 | } opj_jp2_cdef_info_t; |
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| 64 | |||
| 65 | /** |
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| 66 | Channel descriptions and number of descriptions |
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| 67 | */ |
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| 68 | typedef struct opj_jp2_cdef |
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| 69 | { |
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| 70 | opj_jp2_cdef_info_t *info; |
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| 71 | unsigned short n; |
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| 72 | } opj_jp2_cdef_t; |
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| 73 | |||
| 74 | /** |
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| 75 | Component mappings: channel index, mapping type, palette index |
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| 76 | */ |
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| 77 | typedef struct opj_jp2_cmap_comp |
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| 78 | { |
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| 79 | unsigned short cmp; |
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| 80 | unsigned char mtyp, pcol; |
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| 81 | } opj_jp2_cmap_comp_t; |
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| 82 | |||
| 83 | /** |
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| 84 | Palette data: table entries, palette columns |
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| 85 | */ |
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| 86 | typedef struct opj_jp2_pclr |
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| 87 | { |
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| 88 | unsigned int *entries; |
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| 89 | unsigned char *channel_sign; |
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| 90 | unsigned char *channel_size; |
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| 91 | opj_jp2_cmap_comp_t *cmap; |
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| 92 | unsigned short nr_entries, nr_channels; |
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| 93 | } opj_jp2_pclr_t; |
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| 94 | |||
| 95 | /** |
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| 96 | Collector for ICC profile, palette, component mapping, channel description |
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| 97 | */ |
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| 98 | typedef struct opj_jp2_color |
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| 99 | { |
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| 100 | unsigned char *icc_profile_buf; |
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| 101 | int icc_profile_len; |
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| 102 | |||
| 103 | opj_jp2_cdef_t *jp2_cdef; |
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| 104 | opj_jp2_pclr_t *jp2_pclr; |
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| 105 | unsigned char jp2_has_colr; |
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| 106 | } opj_jp2_color_t; |
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| 107 | |||
| 108 | /** |
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| 109 | JP2 component |
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| 110 | */ |
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| 111 | typedef struct opj_jp2_comps { |
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| 112 | int depth; |
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| 113 | int sgnd; |
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| 114 | int bpcc; |
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| 115 | } opj_jp2_comps_t; |
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| 116 | |||
| 117 | /** |
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| 118 | JPEG-2000 file format reader/writer |
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| 119 | */ |
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| 120 | typedef struct opj_jp2 { |
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| 121 | /** codec context */ |
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| 122 | opj_common_ptr cinfo; |
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| 123 | /** handle to the J2K codec */ |
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| 124 | opj_j2k_t *j2k; |
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| 125 | unsigned int w; |
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| 126 | unsigned int h; |
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| 127 | unsigned int numcomps; |
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| 128 | unsigned int bpc; |
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| 129 | unsigned int C; |
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| 130 | unsigned int UnkC; |
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| 131 | unsigned int IPR; |
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| 132 | unsigned int meth; |
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| 133 | unsigned int approx; |
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| 134 | unsigned int enumcs; |
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| 135 | unsigned int precedence; |
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| 136 | unsigned int brand; |
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| 137 | unsigned int minversion; |
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| 138 | unsigned int numcl; |
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| 139 | unsigned int *cl; |
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| 140 | opj_jp2_comps_t *comps; |
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| 141 | unsigned int j2k_codestream_offset; |
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| 142 | unsigned int j2k_codestream_length; |
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| 143 | } opj_jp2_t; |
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| 144 | |||
| 145 | /** |
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| 146 | JP2 Box |
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| 147 | */ |
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| 148 | typedef struct opj_jp2_box { |
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| 149 | int length; |
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| 150 | int type; |
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| 151 | int init_pos; |
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| 152 | } opj_jp2_box_t; |
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| 153 | |||
| 154 | /** @name Exported functions */ |
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| 155 | /*@{*/ |
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| 156 | /* ----------------------------------------------------------------------- */ |
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| 157 | /** |
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| 158 | Write the JP2H box - JP2 Header box (used in MJ2) |
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| 159 | @param jp2 JP2 handle |
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| 160 | @param cio Output buffer stream |
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| 161 | */ |
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| 162 | void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio); |
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| 163 | /** |
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| 164 | Read the JP2H box - JP2 Header box (used in MJ2) |
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| 165 | @param jp2 JP2 handle |
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| 166 | @param cio Input buffer stream |
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| 167 | @param ext Collector for profile, cdef and pclr data |
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| 168 | @return Returns true if successful, returns false otherwise |
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| 169 | */ |
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| 170 | bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color); |
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| 171 | /** |
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| 172 | Creates a JP2 decompression structure |
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| 173 | @param cinfo Codec context info |
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| 174 | @return Returns a handle to a JP2 decompressor if successful, returns NULL otherwise |
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| 175 | */ |
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| 176 | opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo); |
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| 177 | /** |
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| 178 | Destroy a JP2 decompressor handle |
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| 179 | @param jp2 JP2 decompressor handle to destroy |
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| 180 | */ |
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| 181 | void jp2_destroy_decompress(opj_jp2_t *jp2); |
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| 182 | /** |
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| 183 | Setup the decoder decoding parameters using user parameters. |
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| 184 | Decoding parameters are returned in jp2->j2k->cp. |
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| 185 | @param jp2 JP2 decompressor handle |
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| 186 | @param parameters decompression parameters |
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| 187 | */ |
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| 188 | void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters); |
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| 189 | /** |
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| 190 | Decode an image from a JPEG-2000 file stream |
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| 191 | @param jp2 JP2 decompressor handle |
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| 192 | @param cio Input buffer stream |
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| 193 | @param cstr_info Codestream information structure if required, NULL otherwise |
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| 194 | @return Returns a decoded image if successful, returns NULL otherwise |
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| 195 | */ |
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| 196 | opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio, opj_codestream_info_t *cstr_info); |
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| 197 | /** |
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| 198 | Creates a JP2 compression structure |
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| 199 | @param cinfo Codec context info |
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| 200 | @return Returns a handle to a JP2 compressor if successful, returns NULL otherwise |
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| 201 | */ |
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| 202 | opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo); |
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| 203 | /** |
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| 204 | Destroy a JP2 compressor handle |
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| 205 | @param jp2 JP2 compressor handle to destroy |
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| 206 | */ |
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| 207 | void jp2_destroy_compress(opj_jp2_t *jp2); |
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| 208 | /** |
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| 209 | Setup the encoder parameters using the current image and using user parameters. |
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| 210 | Coding parameters are returned in jp2->j2k->cp. |
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| 211 | @param jp2 JP2 compressor handle |
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| 212 | @param parameters compression parameters |
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| 213 | @param image input filled image |
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| 214 | */ |
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| 215 | void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image); |
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| 216 | /** |
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| 217 | Encode an image into a JPEG-2000 file stream |
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| 218 | @param jp2 JP2 compressor handle |
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| 219 | @param cio Output buffer stream |
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| 220 | @param image Image to encode |
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| 221 | @param cstr_info Codestream information structure if required, NULL otherwise |
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| 222 | @return Returns true if successful, returns false otherwise |
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| 223 | */ |
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| 224 | bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info); |
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| 225 | /* ----------------------------------------------------------------------- */ |
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| 226 | /*@}*/ |
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| 227 | |||
| 228 | /*@}*/ |
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| 229 | |||
| 230 | #endif /* __JP2_H */ |
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| 231 |