| 0,0 → 1,231 |
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| /* |
| * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
| * Copyright (c) 2002-2007, Professor Benoit Macq |
| * Copyright (c) 2002-2003, Yannick Verschueren |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef __JP2_H |
| #define __JP2_H |
| /** |
| @file jp2.h |
| @brief The JPEG-2000 file format Reader/Writer (JP2) |
| |
| */ |
| |
| /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */ |
| /*@{*/ |
| |
| #define JPIP_JPIP 0x6a706970 |
| |
| #define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */ |
| #define JP2_FTYP 0x66747970 /**< File type box */ |
| #define JP2_JP2H 0x6a703268 /**< JP2 header box */ |
| #define JP2_IHDR 0x69686472 /**< Image header box */ |
| #define JP2_COLR 0x636f6c72 /**< Colour specification box */ |
| #define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */ |
| #define JP2_URL 0x75726c20 /**< URL box */ |
| #define JP2_DTBL 0x6474626c /**< Data Reference box */ |
| #define JP2_BPCC 0x62706363 /**< Bits per component box */ |
| #define JP2_JP2 0x6a703220 /**< File type fields */ |
| #define JP2_PCLR 0x70636c72 /**< Palette box */ |
| #define JP2_CMAP 0x636d6170 /**< Component Mapping box */ |
| #define JP2_CDEF 0x63646566 /**< Channel Definition box */ |
| |
| /* ----------------------------------------------------------------------- */ |
| /** |
| Channel description: channel index, type, assocation |
| */ |
| typedef struct opj_jp2_cdef_info |
| { |
| unsigned short cn, typ, asoc; |
| } opj_jp2_cdef_info_t; |
| |
| /** |
| Channel descriptions and number of descriptions |
| */ |
| typedef struct opj_jp2_cdef |
| { |
| opj_jp2_cdef_info_t *info; |
| unsigned short n; |
| } opj_jp2_cdef_t; |
| |
| /** |
| Component mappings: channel index, mapping type, palette index |
| */ |
| typedef struct opj_jp2_cmap_comp |
| { |
| unsigned short cmp; |
| unsigned char mtyp, pcol; |
| } opj_jp2_cmap_comp_t; |
| |
| /** |
| Palette data: table entries, palette columns |
| */ |
| typedef struct opj_jp2_pclr |
| { |
| unsigned int *entries; |
| unsigned char *channel_sign; |
| unsigned char *channel_size; |
| opj_jp2_cmap_comp_t *cmap; |
| unsigned short nr_entries, nr_channels; |
| } opj_jp2_pclr_t; |
| |
| /** |
| Collector for ICC profile, palette, component mapping, channel description |
| */ |
| typedef struct opj_jp2_color |
| { |
| unsigned char *icc_profile_buf; |
| int icc_profile_len; |
| |
| opj_jp2_cdef_t *jp2_cdef; |
| opj_jp2_pclr_t *jp2_pclr; |
| unsigned char jp2_has_colr; |
| } opj_jp2_color_t; |
| |
| /** |
| JP2 component |
| */ |
| typedef struct opj_jp2_comps { |
| int depth; |
| int sgnd; |
| int bpcc; |
| } opj_jp2_comps_t; |
| |
| /** |
| JPEG-2000 file format reader/writer |
| */ |
| typedef struct opj_jp2 { |
| /** codec context */ |
| opj_common_ptr cinfo; |
| /** handle to the J2K codec */ |
| opj_j2k_t *j2k; |
| unsigned int w; |
| unsigned int h; |
| unsigned int numcomps; |
| unsigned int bpc; |
| unsigned int C; |
| unsigned int UnkC; |
| unsigned int IPR; |
| unsigned int meth; |
| unsigned int approx; |
| unsigned int enumcs; |
| unsigned int precedence; |
| unsigned int brand; |
| unsigned int minversion; |
| unsigned int numcl; |
| unsigned int *cl; |
| opj_jp2_comps_t *comps; |
| unsigned int j2k_codestream_offset; |
| unsigned int j2k_codestream_length; |
| } opj_jp2_t; |
| |
| /** |
| JP2 Box |
| */ |
| typedef struct opj_jp2_box { |
| int length; |
| int type; |
| int init_pos; |
| } opj_jp2_box_t; |
| |
| /** @name Exported functions */ |
| /*@{*/ |
| /* ----------------------------------------------------------------------- */ |
| /** |
| Write the JP2H box - JP2 Header box (used in MJ2) |
| @param jp2 JP2 handle |
| @param cio Output buffer stream |
| */ |
| void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio); |
| /** |
| Read the JP2H box - JP2 Header box (used in MJ2) |
| @param jp2 JP2 handle |
| @param cio Input buffer stream |
| @param ext Collector for profile, cdef and pclr data |
| @return Returns true if successful, returns false otherwise |
| */ |
| bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color); |
| /** |
| Creates a JP2 decompression structure |
| @param cinfo Codec context info |
| @return Returns a handle to a JP2 decompressor if successful, returns NULL otherwise |
| */ |
| opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo); |
| /** |
| Destroy a JP2 decompressor handle |
| @param jp2 JP2 decompressor handle to destroy |
| */ |
| void jp2_destroy_decompress(opj_jp2_t *jp2); |
| /** |
| Setup the decoder decoding parameters using user parameters. |
| Decoding parameters are returned in jp2->j2k->cp. |
| @param jp2 JP2 decompressor handle |
| @param parameters decompression parameters |
| */ |
| void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters); |
| /** |
| Decode an image from a JPEG-2000 file stream |
| @param jp2 JP2 decompressor handle |
| @param cio Input buffer stream |
| @param cstr_info Codestream information structure if required, NULL otherwise |
| @return Returns a decoded image if successful, returns NULL otherwise |
| */ |
| opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio, opj_codestream_info_t *cstr_info); |
| /** |
| Creates a JP2 compression structure |
| @param cinfo Codec context info |
| @return Returns a handle to a JP2 compressor if successful, returns NULL otherwise |
| */ |
| opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo); |
| /** |
| Destroy a JP2 compressor handle |
| @param jp2 JP2 compressor handle to destroy |
| */ |
| void jp2_destroy_compress(opj_jp2_t *jp2); |
| /** |
| Setup the encoder parameters using the current image and using user parameters. |
| Coding parameters are returned in jp2->j2k->cp. |
| @param jp2 JP2 compressor handle |
| @param parameters compression parameters |
| @param image input filled image |
| */ |
| void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image); |
| /** |
| Encode an image into a JPEG-2000 file stream |
| @param jp2 JP2 compressor handle |
| @param cio Output buffer stream |
| @param image Image to encode |
| @param cstr_info Codestream information structure if required, NULL otherwise |
| @return Returns true if successful, returns false otherwise |
| */ |
| bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info); |
| /* ----------------------------------------------------------------------- */ |
| /*@}*/ |
| |
| /*@}*/ |
| |
| #endif /* __JP2_H */ |
| |