X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2Fgdcmopenjpeg%2Flibopenjpeg%2Fj2k.h;h=225c3cd3cae6ecee52060efa7a7783e911b0a1ba;hb=7e9cd288c8f2138a56699721b33e572a6422d128;hp=e80b68bfcadbe61501b32ca03507b25c3c198d96;hpb=bef3bec50f674640783aed3d3c4cbcdd3fb919d7;p=gdcm.git diff --git a/src/gdcmopenjpeg/libopenjpeg/j2k.h b/src/gdcmopenjpeg/libopenjpeg/j2k.h index e80b68bf..225c3cd3 100644 --- a/src/gdcmopenjpeg/libopenjpeg/j2k.h +++ b/src/gdcmopenjpeg/libopenjpeg/j2k.h @@ -1,429 +1,429 @@ -/* - * Copyright (c) 2001-2003, David Janssens - * Copyright (c) 2002-2003, Yannick Verschueren - * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe - * Copyright (c) 2005, Hervé Drolon, FreeImage Team - * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium - * 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 __J2K_H -#define __J2K_H -/** -@file j2k.h -@brief The JPEG-2000 Codestream Reader/Writer (J2K) - -The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data. -*/ - -/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */ -/*@{*/ - -#define J2K_CP_CSTY_PRT 0x01 -#define J2K_CP_CSTY_SOP 0x02 -#define J2K_CP_CSTY_EPH 0x04 -#define J2K_CCP_CSTY_PRT 0x01 -#define J2K_CCP_CBLKSTY_LAZY 0x01 -#define J2K_CCP_CBLKSTY_RESET 0x02 -#define J2K_CCP_CBLKSTY_TERMALL 0x04 -#define J2K_CCP_CBLKSTY_VSC 0x08 -#define J2K_CCP_CBLKSTY_PTERM 0x10 -#define J2K_CCP_CBLKSTY_SEGSYM 0x20 -#define J2K_CCP_QNTSTY_NOQNT 0 -#define J2K_CCP_QNTSTY_SIQNT 1 -#define J2K_CCP_QNTSTY_SEQNT 2 - -/* ----------------------------------------------------------------------- */ - -#define J2K_MS_SOC 0xff4f /**< SOC marker value */ -#define J2K_MS_SOT 0xff90 /**< SOT marker value */ -#define J2K_MS_SOD 0xff93 /**< SOD marker value */ -#define J2K_MS_EOC 0xffd9 /**< EOC marker value */ -#define J2K_MS_SIZ 0xff51 /**< SIZ marker value */ -#define J2K_MS_COD 0xff52 /**< COD marker value */ -#define J2K_MS_COC 0xff53 /**< COC marker value */ -#define J2K_MS_RGN 0xff5e /**< RGN marker value */ -#define J2K_MS_QCD 0xff5c /**< QCD marker value */ -#define J2K_MS_QCC 0xff5d /**< QCC marker value */ -#define J2K_MS_POC 0xff5f /**< POC marker value */ -#define J2K_MS_TLM 0xff55 /**< TLM marker value */ -#define J2K_MS_PLM 0xff57 /**< PLM marker value */ -#define J2K_MS_PLT 0xff58 /**< PLT marker value */ -#define J2K_MS_PPM 0xff60 /**< PPM marker value */ -#define J2K_MS_PPT 0xff61 /**< PPT marker value */ -#define J2K_MS_SOP 0xff91 /**< SOP marker value */ -#define J2K_MS_EPH 0xff92 /**< EPH marker value */ -#define J2K_MS_CRG 0xff63 /**< CRG marker value */ -#define J2K_MS_COM 0xff64 /**< COM marker value */ - -/* ----------------------------------------------------------------------- */ - -/** -Values that specify the status of the decoding process when decoding the main header. -These values may be combined with a | operator. -*/ -typedef enum J2K_STATUS { - J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */ - J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */ - J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */ - J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */ - J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */ - J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */ - J2K_STATE_NEOC = 0x0040 /**< the decoding process must not expect a EOC marker because the codestream is truncated */ -} J2K_STATUS; - -/* ----------------------------------------------------------------------- */ - -/** -Quantization stepsize -*/ -typedef struct opj_stepsize { - /** exponent */ - int expn; - /** mantissa */ - int mant; -} opj_stepsize_t; - -/** -Tile-component coding parameters -*/ -typedef struct opj_tccp { - /** coding style */ - int csty; - /** number of resolutions */ - int numresolutions; - /** code-blocks width */ - int cblkw; - /** code-blocks height */ - int cblkh; - /** code-block coding style */ - int cblksty; - /** discrete wavelet transform identifier */ - int qmfbid; - /** quantisation style */ - int qntsty; - /** stepsizes used for quantization */ - opj_stepsize_t stepsizes[J2K_MAXBANDS]; - /** number of guard bits */ - int numgbits; - /** Region Of Interest shift */ - int roishift; - /** precinct width */ - int prcw[J2K_MAXRLVLS]; - /** precinct height */ - int prch[J2K_MAXRLVLS]; -} opj_tccp_t; - -/** -Tile coding parameters : -this structure is used to store coding/decoding parameters common to all -tiles (information like COD, COC in main header) -*/ -typedef struct opj_tcp { - /** 1 : first part-tile of a tile */ - int first; - /** coding style */ - int csty; - /** progression order */ - OPJ_PROG_ORDER prg; - /** number of layers */ - int numlayers; - /** multi-component transform identifier */ - int mct; - /** rates of layers */ - int rates[100]; - /** number of progression order changes */ - int numpocs; - /** indicates if a POC marker has been used O:NO, 1:YES */ - int POC; - /** progression order changes */ - opj_poc_t pocs[32]; - /** packet header store there for futur use in t2_decode_packet */ - unsigned char *ppt_data; - /** pointer remaining on the first byte of the first header if ppt is used */ - unsigned char *ppt_data_first; - /** If ppt == 1 --> there was a PPT marker for the present tile */ - int ppt; - /** used in case of multiple marker PPT (number of info already stored) */ - int ppt_store; - /** ppmbug1 */ - int ppt_len; - /** add fixed_quality */ - float distoratio[100]; - /** tile-component coding parameters */ - opj_tccp_t *tccps; -} opj_tcp_t; - -/** -Coding parameters -*/ -typedef struct opj_cp { - /** allocation by rate/distortion */ - int disto_alloc; - /** allocation by fixed layer */ - int fixed_alloc; - /** add fixed_quality */ - int fixed_quality; - /** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */ - int reduce; - /** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */ - int layer; - /** 0 = no index || 1 = index */ - int index_on; - /** XTOsiz */ - int tx0; - /** YTOsiz */ - int ty0; - /** XTsiz */ - int tdx; - /** YTsiz */ - int tdy; - /** comment for coding */ - char *comment; - /** number of tiles in width */ - int tw; - /** number of tiles in heigth */ - int th; - /** ID number of the tiles present in the codestream */ - int *tileno; - /** size of the vector tileno */ - int tileno_size; - /** packet header store there for futur use in t2_decode_packet */ - unsigned char *ppm_data; - /** pointer remaining on the first byte of the first header if ppm is used */ - unsigned char *ppm_data_first; - /** if ppm == 1 --> there was a PPM marker for the present tile */ - int ppm; - /** use in case of multiple marker PPM (number of info already store) */ - int ppm_store; - /** use in case of multiple marker PPM (case on non-finished previous info) */ - int ppm_previous; - /** ppmbug1 */ - int ppm_len; - /** tile coding parameters */ - opj_tcp_t *tcps; - /** fixed layer */ - int *matrice; -} opj_cp_t; - -/** -Information concerning a packet inside tile -*/ -typedef struct opj_packet_info { - /** start position */ - int start_pos; - /** end position */ - int end_pos; - /** ADD for Marcela */ - double disto; -} opj_packet_info_t; - -/** -Index structure : information regarding tiles inside image -*/ -typedef struct opj_tile_info { - /** value of thresh for each layer by tile cfr. Marcela */ - double *thresh; - /** number of tile */ - int num_tile; - /** start position */ - int start_pos; - /** end position of the header */ - int end_header; - /** end position */ - int end_pos; - /** precinct number for each resolution level (width) */ - int pw[33]; - /** precinct number for each resolution level (height) */ - int ph[33]; - /** precinct size (in power of 2), in X for each resolution level */ - int pdx[33]; - /** precinct size (in power of 2), in Y for each resolution level */ - int pdy[33]; - /** information concerning packets inside tile */ - opj_packet_info_t *packet; - /** add fixed_quality */ - int nbpix; - /** add fixed_quality */ - double distotile; -} opj_tile_info_t; - -/** -Index structure -*/ -typedef struct opj_image_info { - /** 0 = no index || 1 = index */ - int index_on; - /** maximum distortion reduction on the whole image (add for Marcela) */ - double D_max; - /** packet number */ - int num; - /** writing the packet in the index with t2_encode_packets */ - int index_write; - /** image width */ - int image_w; - /** image height */ - int image_h; - /** progression order */ - OPJ_PROG_ORDER prog; - /** tile size in x */ - int tile_x; - /** tile size in y */ - int tile_y; - /** */ - int tile_Ox; - /** */ - int tile_Oy; - /** number of tiles in X */ - int tw; - /** number of tiles in Y */ - int th; - /** component numbers */ - int comp; - /** number of layer */ - int layer; - /** number of decomposition */ - int decomposition; - /** main header position */ - int main_head_end; - /** codestream's size */ - int codestream_size; - /** information regarding tiles inside image */ - opj_tile_info_t *tile; -} opj_image_info_t; - -/** -JPEG-2000 codestream reader/writer -*/ -typedef struct opj_j2k { - /** codec context */ - opj_common_ptr cinfo; - - /** locate in which part of the codestream the decoder is (main header, tile header, end) */ - int state; - /** number of the tile curently concern by coding/decoding */ - int curtileno; - /** - locate the position of the end of the tile in the codestream, - used to detect a truncated codestream (in j2k_read_sod) - */ - unsigned char *eot; - /** - locate the start position of the SOT marker of the current coded tile: - after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length. - */ - int sot_start; - int sod_start; - /** - as the J2K-file is written in several parts during encoding, - it enables to make the right correction in position return by cio_tell - */ - int pos_correction; - /** array used to store the data of each tile */ - unsigned char **tile_data; - /** array used to store the length of each tile */ - int *tile_len; - /** - decompression only : - store decoding parameters common to all tiles (information like COD, COC in main header) - */ - opj_tcp_t *default_tcp; - /** pointer to the encoded / decoded image */ - opj_image_t *image; - /** pointer to the coding parameters */ - opj_cp_t *cp; - /** helper used to write the index file */ - opj_image_info_t *image_info; - /** pointer to the byte i/o stream */ - opj_cio_t *cio; -} opj_j2k_t; - -/** @name Exported functions */ -/*@{*/ -/* ----------------------------------------------------------------------- */ -/** -Creates a J2K decompression structure -@param cinfo Codec context info -@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise -*/ -opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo); -/** -Destroy a J2K decompressor handle -@param j2k J2K decompressor handle to destroy -*/ -void j2k_destroy_decompress(opj_j2k_t *j2k); -/** -Setup the decoder decoding parameters using user parameters. -Decoding parameters are returned in j2k->cp. -@param j2k J2K decompressor handle -@param parameters decompression parameters -*/ -void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters); -/** -Decode an image from a JPEG-2000 codestream -@param j2k J2K decompressor handle -@param cio Input buffer stream -@return Returns a decoded image if successful, returns NULL otherwise -*/ -opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio); -/** -Decode an image form a JPT-stream (JPEG 2000, JPIP) -@param j2k J2K decompressor handle -@param cio Input buffer stream -@return Returns a decoded image if successful, returns NULL otherwise -*/ -opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio); -/** -Creates a J2K compression structure -@param cinfo Codec context info -@return Returns a handle to a J2K compressor if successful, returns NULL otherwise -*/ -opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo); -/** -Destroy a J2K compressor handle -@param j2k J2K compressor handle to destroy -*/ -void j2k_destroy_compress(opj_j2k_t *j2k); -/** -Setup the encoder parameters using the current image and using user parameters. -Coding parameters are returned in j2k->cp. -@param j2k J2K compressor handle -@param parameters compression parameters -@param image input filled image -*/ -void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image); -/** -Encode an image into a JPEG-2000 codestream -@param j2k J2K compressor handle -@param cio Output buffer stream -@param image Image to encode -@param index Name of the index file if required, NULL otherwise -@return Returns true if successful, returns false otherwise -*/ -bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index); -/* ----------------------------------------------------------------------- */ -/*@}*/ - -/*@}*/ - -#endif /* __J2K_H */ +/* + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe + * Copyright (c) 2005, Hervé Drolon, FreeImage Team + * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium + * 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 __J2K_H +#define __J2K_H +/** +@file j2k.h +@brief The JPEG-2000 Codestream Reader/Writer (J2K) + +The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data. +*/ + +/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */ +/*@{*/ + +#define J2K_CP_CSTY_PRT 0x01 +#define J2K_CP_CSTY_SOP 0x02 +#define J2K_CP_CSTY_EPH 0x04 +#define J2K_CCP_CSTY_PRT 0x01 +#define J2K_CCP_CBLKSTY_LAZY 0x01 +#define J2K_CCP_CBLKSTY_RESET 0x02 +#define J2K_CCP_CBLKSTY_TERMALL 0x04 +#define J2K_CCP_CBLKSTY_VSC 0x08 +#define J2K_CCP_CBLKSTY_PTERM 0x10 +#define J2K_CCP_CBLKSTY_SEGSYM 0x20 +#define J2K_CCP_QNTSTY_NOQNT 0 +#define J2K_CCP_QNTSTY_SIQNT 1 +#define J2K_CCP_QNTSTY_SEQNT 2 + +/* ----------------------------------------------------------------------- */ + +#define J2K_MS_SOC 0xff4f /**< SOC marker value */ +#define J2K_MS_SOT 0xff90 /**< SOT marker value */ +#define J2K_MS_SOD 0xff93 /**< SOD marker value */ +#define J2K_MS_EOC 0xffd9 /**< EOC marker value */ +#define J2K_MS_SIZ 0xff51 /**< SIZ marker value */ +#define J2K_MS_COD 0xff52 /**< COD marker value */ +#define J2K_MS_COC 0xff53 /**< COC marker value */ +#define J2K_MS_RGN 0xff5e /**< RGN marker value */ +#define J2K_MS_QCD 0xff5c /**< QCD marker value */ +#define J2K_MS_QCC 0xff5d /**< QCC marker value */ +#define J2K_MS_POC 0xff5f /**< POC marker value */ +#define J2K_MS_TLM 0xff55 /**< TLM marker value */ +#define J2K_MS_PLM 0xff57 /**< PLM marker value */ +#define J2K_MS_PLT 0xff58 /**< PLT marker value */ +#define J2K_MS_PPM 0xff60 /**< PPM marker value */ +#define J2K_MS_PPT 0xff61 /**< PPT marker value */ +#define J2K_MS_SOP 0xff91 /**< SOP marker value */ +#define J2K_MS_EPH 0xff92 /**< EPH marker value */ +#define J2K_MS_CRG 0xff63 /**< CRG marker value */ +#define J2K_MS_COM 0xff64 /**< COM marker value */ + +/* ----------------------------------------------------------------------- */ + +/** +Values that specify the status of the decoding process when decoding the main header. +These values may be combined with a | operator. +*/ +typedef enum J2K_STATUS { + J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */ + J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */ + J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */ + J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */ + J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */ + J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */ + J2K_STATE_NEOC = 0x0040 /**< the decoding process must not expect a EOC marker because the codestream is truncated */ +} J2K_STATUS; + +/* ----------------------------------------------------------------------- */ + +/** +Quantization stepsize +*/ +typedef struct opj_stepsize { + /** exponent */ + int expn; + /** mantissa */ + int mant; +} opj_stepsize_t; + +/** +Tile-component coding parameters +*/ +typedef struct opj_tccp { + /** coding style */ + int csty; + /** number of resolutions */ + int numresolutions; + /** code-blocks width */ + int cblkw; + /** code-blocks height */ + int cblkh; + /** code-block coding style */ + int cblksty; + /** discrete wavelet transform identifier */ + int qmfbid; + /** quantisation style */ + int qntsty; + /** stepsizes used for quantization */ + opj_stepsize_t stepsizes[J2K_MAXBANDS]; + /** number of guard bits */ + int numgbits; + /** Region Of Interest shift */ + int roishift; + /** precinct width */ + int prcw[J2K_MAXRLVLS]; + /** precinct height */ + int prch[J2K_MAXRLVLS]; +} opj_tccp_t; + +/** +Tile coding parameters : +this structure is used to store coding/decoding parameters common to all +tiles (information like COD, COC in main header) +*/ +typedef struct opj_tcp { + /** 1 : first part-tile of a tile */ + int first; + /** coding style */ + int csty; + /** progression order */ + OPJ_PROG_ORDER prg; + /** number of layers */ + int numlayers; + /** multi-component transform identifier */ + int mct; + /** rates of layers */ + int rates[100]; + /** number of progression order changes */ + int numpocs; + /** indicates if a POC marker has been used O:NO, 1:YES */ + int POC; + /** progression order changes */ + opj_poc_t pocs[32]; + /** packet header store there for futur use in t2_decode_packet */ + unsigned char *ppt_data; + /** pointer remaining on the first byte of the first header if ppt is used */ + unsigned char *ppt_data_first; + /** If ppt == 1 --> there was a PPT marker for the present tile */ + int ppt; + /** used in case of multiple marker PPT (number of info already stored) */ + int ppt_store; + /** ppmbug1 */ + int ppt_len; + /** add fixed_quality */ + float distoratio[100]; + /** tile-component coding parameters */ + opj_tccp_t *tccps; +} opj_tcp_t; + +/** +Coding parameters +*/ +typedef struct opj_cp { + /** allocation by rate/distortion */ + int disto_alloc; + /** allocation by fixed layer */ + int fixed_alloc; + /** add fixed_quality */ + int fixed_quality; + /** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */ + int reduce; + /** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */ + int layer; + /** 0 = no index || 1 = index */ + int index_on; + /** XTOsiz */ + int tx0; + /** YTOsiz */ + int ty0; + /** XTsiz */ + int tdx; + /** YTsiz */ + int tdy; + /** comment for coding */ + char *comment; + /** number of tiles in width */ + int tw; + /** number of tiles in heigth */ + int th; + /** ID number of the tiles present in the codestream */ + int *tileno; + /** size of the vector tileno */ + int tileno_size; + /** packet header store there for futur use in t2_decode_packet */ + unsigned char *ppm_data; + /** pointer remaining on the first byte of the first header if ppm is used */ + unsigned char *ppm_data_first; + /** if ppm == 1 --> there was a PPM marker for the present tile */ + int ppm; + /** use in case of multiple marker PPM (number of info already store) */ + int ppm_store; + /** use in case of multiple marker PPM (case on non-finished previous info) */ + int ppm_previous; + /** ppmbug1 */ + int ppm_len; + /** tile coding parameters */ + opj_tcp_t *tcps; + /** fixed layer */ + int *matrice; +} opj_cp_t; + +/** +Information concerning a packet inside tile +*/ +typedef struct opj_packet_info { + /** start position */ + int start_pos; + /** end position */ + int end_pos; + /** ADD for Marcela */ + double disto; +} opj_packet_info_t; + +/** +Index structure : information regarding tiles inside image +*/ +typedef struct opj_tile_info { + /** value of thresh for each layer by tile cfr. Marcela */ + double *thresh; + /** number of tile */ + int num_tile; + /** start position */ + int start_pos; + /** end position of the header */ + int end_header; + /** end position */ + int end_pos; + /** precinct number for each resolution level (width) */ + int pw[33]; + /** precinct number for each resolution level (height) */ + int ph[33]; + /** precinct size (in power of 2), in X for each resolution level */ + int pdx[33]; + /** precinct size (in power of 2), in Y for each resolution level */ + int pdy[33]; + /** information concerning packets inside tile */ + opj_packet_info_t *packet; + /** add fixed_quality */ + int nbpix; + /** add fixed_quality */ + double distotile; +} opj_tile_info_t; + +/** +Index structure +*/ +typedef struct opj_image_info { + /** 0 = no index || 1 = index */ + int index_on; + /** maximum distortion reduction on the whole image (add for Marcela) */ + double D_max; + /** packet number */ + int num; + /** writing the packet in the index with t2_encode_packets */ + int index_write; + /** image width */ + int image_w; + /** image height */ + int image_h; + /** progression order */ + OPJ_PROG_ORDER prog; + /** tile size in x */ + int tile_x; + /** tile size in y */ + int tile_y; + /** */ + int tile_Ox; + /** */ + int tile_Oy; + /** number of tiles in X */ + int tw; + /** number of tiles in Y */ + int th; + /** component numbers */ + int comp; + /** number of layer */ + int layer; + /** number of decomposition */ + int decomposition; + /** main header position */ + int main_head_end; + /** codestream's size */ + int codestream_size; + /** information regarding tiles inside image */ + opj_tile_info_t *tile; +} opj_image_info_t; + +/** +JPEG-2000 codestream reader/writer +*/ +typedef struct opj_j2k { + /** codec context */ + opj_common_ptr cinfo; + + /** locate in which part of the codestream the decoder is (main header, tile header, end) */ + int state; + /** number of the tile curently concern by coding/decoding */ + int curtileno; + /** + locate the position of the end of the tile in the codestream, + used to detect a truncated codestream (in j2k_read_sod) + */ + unsigned char *eot; + /** + locate the start position of the SOT marker of the current coded tile: + after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length. + */ + int sot_start; + int sod_start; + /** + as the J2K-file is written in several parts during encoding, + it enables to make the right correction in position return by cio_tell + */ + int pos_correction; + /** array used to store the data of each tile */ + unsigned char **tile_data; + /** array used to store the length of each tile */ + int *tile_len; + /** + decompression only : + store decoding parameters common to all tiles (information like COD, COC in main header) + */ + opj_tcp_t *default_tcp; + /** pointer to the encoded / decoded image */ + opj_image_t *image; + /** pointer to the coding parameters */ + opj_cp_t *cp; + /** helper used to write the index file */ + opj_image_info_t *image_info; + /** pointer to the byte i/o stream */ + opj_cio_t *cio; +} opj_j2k_t; + +/** @name Exported functions */ +/*@{*/ +/* ----------------------------------------------------------------------- */ +/** +Creates a J2K decompression structure +@param cinfo Codec context info +@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise +*/ +opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo); +/** +Destroy a J2K decompressor handle +@param j2k J2K decompressor handle to destroy +*/ +void j2k_destroy_decompress(opj_j2k_t *j2k); +/** +Setup the decoder decoding parameters using user parameters. +Decoding parameters are returned in j2k->cp. +@param j2k J2K decompressor handle +@param parameters decompression parameters +*/ +void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters); +/** +Decode an image from a JPEG-2000 codestream +@param j2k J2K decompressor handle +@param cio Input buffer stream +@return Returns a decoded image if successful, returns NULL otherwise +*/ +opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio); +/** +Decode an image form a JPT-stream (JPEG 2000, JPIP) +@param j2k J2K decompressor handle +@param cio Input buffer stream +@return Returns a decoded image if successful, returns NULL otherwise +*/ +opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio); +/** +Creates a J2K compression structure +@param cinfo Codec context info +@return Returns a handle to a J2K compressor if successful, returns NULL otherwise +*/ +opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo); +/** +Destroy a J2K compressor handle +@param j2k J2K compressor handle to destroy +*/ +void j2k_destroy_compress(opj_j2k_t *j2k); +/** +Setup the encoder parameters using the current image and using user parameters. +Coding parameters are returned in j2k->cp. +@param j2k J2K compressor handle +@param parameters compression parameters +@param image input filled image +*/ +void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image); +/** +Encode an image into a JPEG-2000 codestream +@param j2k J2K compressor handle +@param cio Output buffer stream +@param image Image to encode +@param index Name of the index file if required, NULL otherwise +@return Returns true if successful, returns false otherwise +*/ +bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index); +/* ----------------------------------------------------------------------- */ +/*@}*/ + +/*@}*/ + +#endif /* __J2K_H */