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/*
* The copyright in this software is being made available under the 2 - clauses
* BSD License , included below . This software may be subject to other third
* party and contributor rights , including patent rights , and no such rights
* are granted under this license .
*
* Copyright ( c ) 2002 - 2014 , Universite catholique de Louvain ( UCL ) , Belgium
* Copyright ( c ) 2002 - 2014 , Professor Benoit Macq
* Copyright ( c ) 2001 - 2003 , David Janssens
* Copyright ( c ) 2002 - 2003 , Yannick Verschueren
* Copyright ( c ) 2003 - 2007 , Francois - Olivier Devaux
* Copyright ( c ) 2003 - 2014 , Antonin Descampe
* Copyright ( c ) 2005 , Herve Drolon , FreeImage Team
* Copyright ( c ) 2006 - 2007 , Parvatha Elangovan
* Copyright ( c ) 2008 , Jerome Fimes , Communications & Systemes < jerome . fimes @ c - s . fr >
* Copyright ( c ) 2011 - 2012 , Centre National d ' Etudes Spatiales ( CNES ) , France
* Copyright ( c ) 2012 , CS Systemes d ' Information , France
*
* 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 OPJ_J2K_H
# define OPJ_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 /**< Selective arithmetic coding bypass */
# define J2K_CCP_CBLKSTY_RESET 0x02 /**< Reset context probabilities on coding pass boundaries */
# define J2K_CCP_CBLKSTY_TERMALL 0x04 /**< Termination on each coding pass */
# define J2K_CCP_CBLKSTY_VSC 0x08 /**< Vertically stripe causal context */
# define J2K_CCP_CBLKSTY_PTERM 0x10 /**< Predictable termination */
# define J2K_CCP_CBLKSTY_SEGSYM 0x20 /**< Segmentation symbols are used */
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# define J2K_CCP_CBLKSTY_HT 0x40 /**< (high throughput) HT codeblocks */
# define J2K_CCP_CBLKSTY_HTMIXED 0x80 /**< MIXED mode HT codeblocks */
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# 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 */
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# define J2K_MS_CAP 0xff50 /**< CAP marker value */
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# define J2K_MS_SIZ 0xff51 /**< SIZ marker value */
# define J2K_MS_COD 0xff52 /**< COD marker value */
# define J2K_MS_COC 0xff53 /**< COC marker value */
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# define J2K_MS_CPF 0xff59 /**< CPF marker value */
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# 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 */
# define J2K_MS_CBD 0xff78 /**< CBD marker value */
# define J2K_MS_MCC 0xff75 /**< MCC marker value */
# define J2K_MS_MCT 0xff74 /**< MCT marker value */
# define J2K_MS_MCO 0xff77 /**< MCO marker value */
# define J2K_MS_UNK 0 /**< UNKNOWN marker value */
/* UniPG>> */
# ifdef USE_JPWL
# define J2K_MS_EPC 0xff68 /**< EPC marker value (Part 11: JPEG 2000 for Wireless) */
# define J2K_MS_EPB 0xff66 /**< EPB marker value (Part 11: JPEG 2000 for Wireless) */
# define J2K_MS_ESD 0xff67 /**< ESD marker value (Part 11: JPEG 2000 for Wireless) */
# define J2K_MS_RED 0xff69 /**< RED marker value (Part 11: JPEG 2000 for Wireless) */
# endif /* USE_JPWL */
# ifdef USE_JPSEC
# define J2K_MS_SEC 0xff65 /**< SEC marker value (Part 8: Secure JPEG 2000) */
# define J2K_MS_INSEC 0xff94 /**< INSEC marker value (Part 8: Secure JPEG 2000) */
# endif /* USE_JPSEC */
/* <<UniPG */
# define J2K_MAX_POCS 32 /**< Maximum number of POCs */
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# define J2K_TCD_MATRIX_MAX_LAYER_COUNT 10
# define J2K_TCD_MATRIX_MAX_RESOLUTION_COUNT 10
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/* ----------------------------------------------------------------------- */
/**
* 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_NONE = 0x0000 , /**< a SOC marker is expected */
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_STATE_DATA = 0x0080 , /**< a tile header has been successfully read and codestream is expected */
J2K_STATE_EOC = 0x0100 , /**< the decoding process has encountered the EOC marker */
J2K_STATE_ERR = 0x8000 /**< the decoding process has encountered an error (FIXME warning V1 = 0x0080)*/
} J2K_STATUS ;
/**
* Type of elements storing in the MCT data
*/
typedef enum MCT_ELEMENT_TYPE {
MCT_TYPE_INT16 = 0 , /** MCT data is stored as signed shorts*/
MCT_TYPE_INT32 = 1 , /** MCT data is stored as signed integers*/
MCT_TYPE_FLOAT = 2 , /** MCT data is stored as floats*/
MCT_TYPE_DOUBLE = 3 /** MCT data is stored as doubles*/
} J2K_MCT_ELEMENT_TYPE ;
/**
* Type of MCT array
*/
typedef enum MCT_ARRAY_TYPE {
MCT_TYPE_DEPENDENCY = 0 ,
MCT_TYPE_DECORRELATION = 1 ,
MCT_TYPE_OFFSET = 2
} J2K_MCT_ARRAY_TYPE ;
/* ----------------------------------------------------------------------- */
/**
T2 encoding mode
*/
typedef enum T2_MODE {
THRESH_CALC = 0 , /** Function called in Rate allocation process*/
FINAL_PASS = 1 /** Function called in Tier 2 process*/
} J2K_T2_MODE ;
/**
* Quantization stepsize
*/
typedef struct opj_stepsize {
/** exponent */
OPJ_INT32 expn ;
/** mantissa */
OPJ_INT32 mant ;
} opj_stepsize_t ;
/**
Tile - component coding parameters
*/
typedef struct opj_tccp {
/** coding style */
OPJ_UINT32 csty ;
/** number of resolutions */
OPJ_UINT32 numresolutions ;
/** code-blocks width */
OPJ_UINT32 cblkw ;
/** code-blocks height */
OPJ_UINT32 cblkh ;
/** code-block coding style */
OPJ_UINT32 cblksty ;
/** discrete wavelet transform identifier */
OPJ_UINT32 qmfbid ;
/** quantisation style */
OPJ_UINT32 qntsty ;
/** stepsizes used for quantization */
opj_stepsize_t stepsizes [ OPJ_J2K_MAXBANDS ] ;
/** number of guard bits */
OPJ_UINT32 numgbits ;
/** Region Of Interest shift */
OPJ_INT32 roishift ;
/** precinct width */
OPJ_UINT32 prcw [ OPJ_J2K_MAXRLVLS ] ;
/** precinct height */
OPJ_UINT32 prch [ OPJ_J2K_MAXRLVLS ] ;
/** the dc_level_shift **/
OPJ_INT32 m_dc_level_shift ;
}
opj_tccp_t ;
/**
* FIXME DOC
*/
typedef struct opj_mct_data {
J2K_MCT_ELEMENT_TYPE m_element_type ;
J2K_MCT_ARRAY_TYPE m_array_type ;
OPJ_UINT32 m_index ;
OPJ_BYTE * m_data ;
OPJ_UINT32 m_data_size ;
}
opj_mct_data_t ;
/**
* FIXME DOC
*/
typedef struct opj_simple_mcc_decorrelation_data {
OPJ_UINT32 m_index ;
OPJ_UINT32 m_nb_comps ;
opj_mct_data_t * m_decorrelation_array ;
opj_mct_data_t * m_offset_array ;
OPJ_BITFIELD m_is_irreversible : 1 ;
}
opj_simple_mcc_decorrelation_data_t ;
typedef struct opj_ppx_struct {
OPJ_BYTE * m_data ; /* m_data == NULL => Zppx not read yet */
OPJ_UINT32 m_data_size ;
} opj_ppx ;
/**
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 {
/** coding style */
OPJ_UINT32 csty ;
/** progression order */
OPJ_PROG_ORDER prg ;
/** number of layers */
OPJ_UINT32 numlayers ;
OPJ_UINT32 num_layers_to_decode ;
/** multi-component transform identifier */
OPJ_UINT32 mct ;
/** rates of layers */
OPJ_FLOAT32 rates [ 100 ] ;
/** number of progression order changes */
OPJ_UINT32 numpocs ;
/** progression order changes */
opj_poc_t pocs [ J2K_MAX_POCS ] ;
/** number of ppt markers (reserved size) */
OPJ_UINT32 ppt_markers_count ;
/** ppt markers data (table indexed by Zppt) */
opj_ppx * ppt_markers ;
/** packet header store there for future use in t2_decode_packet */
OPJ_BYTE * ppt_data ;
/** used to keep a track of the allocated memory */
OPJ_BYTE * ppt_buffer ;
/** Number of bytes stored inside ppt_data*/
OPJ_UINT32 ppt_data_size ;
/** size of ppt_data*/
OPJ_UINT32 ppt_len ;
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/** PSNR values */
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OPJ_FLOAT32 distoratio [ 100 ] ;
/** tile-component coding parameters */
opj_tccp_t * tccps ;
/** current tile part number or -1 if first time into this tile */
OPJ_INT32 m_current_tile_part_number ;
/** number of tile parts for the tile. */
OPJ_UINT32 m_nb_tile_parts ;
/** data for the tile */
OPJ_BYTE * m_data ;
/** size of data */
OPJ_UINT32 m_data_size ;
/** encoding norms */
OPJ_FLOAT64 * mct_norms ;
/** the mct decoding matrix */
OPJ_FLOAT32 * m_mct_decoding_matrix ;
/** the mct coding matrix */
OPJ_FLOAT32 * m_mct_coding_matrix ;
/** mct records */
opj_mct_data_t * m_mct_records ;
/** the number of mct records. */
OPJ_UINT32 m_nb_mct_records ;
/** the max number of mct records. */
OPJ_UINT32 m_nb_max_mct_records ;
/** mcc records */
opj_simple_mcc_decorrelation_data_t * m_mcc_records ;
/** the number of mct records. */
OPJ_UINT32 m_nb_mcc_records ;
/** the max number of mct records. */
OPJ_UINT32 m_nb_max_mcc_records ;
/***** FLAGS *******/
/** If cod == 1 --> there was a COD marker for the present tile */
OPJ_BITFIELD cod : 1 ;
/** If ppt == 1 --> there was a PPT marker for the present tile */
OPJ_BITFIELD ppt : 1 ;
/** indicates if a POC marker has been used O:NO, 1:YES */
OPJ_BITFIELD POC : 1 ;
} opj_tcp_t ;
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/**
Rate allocation strategy
*/
typedef enum {
RATE_DISTORTION_RATIO = 0 , /** allocation by rate/distortion */
FIXED_DISTORTION_RATIO = 1 , /** allocation by fixed distortion ratio (PSNR) (fixed quality) */
FIXED_LAYER = 2 , /** allocation by fixed layer (number of passes per layer / resolution / subband) */
} J2K_QUALITY_LAYER_ALLOCATION_STRATEGY ;
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typedef struct opj_encoding_param {
/** Maximum rate for each component. If == 0, component size limitation is not considered */
OPJ_UINT32 m_max_comp_size ;
/** Position of tile part flag in progression order*/
OPJ_INT32 m_tp_pos ;
/** fixed layer */
OPJ_INT32 * m_matrice ;
/** Flag determining tile part generation*/
OPJ_BYTE m_tp_flag ;
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/** Quality layer allocation strategy */
J2K_QUALITY_LAYER_ALLOCATION_STRATEGY m_quality_layer_alloc_strategy ;
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/** Enabling Tile part generation*/
OPJ_BITFIELD m_tp_on : 1 ;
}
opj_encoding_param_t ;
typedef struct opj_decoding_param {
/** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
OPJ_UINT32 m_reduce ;
/** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
OPJ_UINT32 m_layer ;
}
opj_decoding_param_t ;
/**
* Coding parameters
*/
typedef struct opj_cp {
/** Size of the image in bits*/
/*int img_size;*/
/** Rsiz*/
OPJ_UINT16 rsiz ;
/** XTOsiz */
OPJ_UINT32 tx0 ; /* MSD see norm */
/** YTOsiz */
OPJ_UINT32 ty0 ; /* MSD see norm */
/** XTsiz */
OPJ_UINT32 tdx ;
/** YTsiz */
OPJ_UINT32 tdy ;
/** comment */
OPJ_CHAR * comment ;
/** number of tiles in width */
OPJ_UINT32 tw ;
/** number of tiles in height */
OPJ_UINT32 th ;
/** number of ppm markers (reserved size) */
OPJ_UINT32 ppm_markers_count ;
/** ppm markers data (table indexed by Zppm) */
opj_ppx * ppm_markers ;
/** packet header store there for future use in t2_decode_packet */
OPJ_BYTE * ppm_data ;
/** size of the ppm_data*/
OPJ_UINT32 ppm_len ;
/** size of the ppm_data*/
OPJ_UINT32 ppm_data_read ;
OPJ_BYTE * ppm_data_current ;
/** packet header storage original buffer */
OPJ_BYTE * ppm_buffer ;
/** pointer remaining on the first byte of the first header if ppm is used */
OPJ_BYTE * ppm_data_first ;
/** Number of bytes actually stored inside the ppm_data */
OPJ_UINT32 ppm_data_size ;
/** use in case of multiple marker PPM (number of info already store) */
OPJ_INT32 ppm_store ;
/** use in case of multiple marker PPM (case on non-finished previous info) */
OPJ_INT32 ppm_previous ;
/** tile coding parameters */
opj_tcp_t * tcps ;
union {
opj_decoding_param_t m_dec ;
opj_encoding_param_t m_enc ;
}
m_specific_param ;
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/** OPJ_TRUE if entire bit stream must be decoded, OPJ_FALSE if partial bitstream decoding allowed */
OPJ_BOOL strict ;
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/* UniPG>> */
# ifdef USE_JPWL
/** enables writing of EPC in MH, thus activating JPWL */
OPJ_BOOL epc_on ;
/** enables writing of EPB, in case of activated JPWL */
OPJ_BOOL epb_on ;
/** enables writing of ESD, in case of activated JPWL */
OPJ_BOOL esd_on ;
/** enables writing of informative techniques of ESD, in case of activated JPWL */
OPJ_BOOL info_on ;
/** enables writing of RED, in case of activated JPWL */
OPJ_BOOL red_on ;
/** error protection method for MH (0,1,16,32,37-128) */
int hprot_MH ;
/** tile number of header protection specification (>=0) */
int hprot_TPH_tileno [ JPWL_MAX_NO_TILESPECS ] ;
/** error protection methods for TPHs (0,1,16,32,37-128) */
int hprot_TPH [ JPWL_MAX_NO_TILESPECS ] ;
/** tile number of packet protection specification (>=0) */
int pprot_tileno [ JPWL_MAX_NO_PACKSPECS ] ;
/** packet number of packet protection specification (>=0) */
int pprot_packno [ JPWL_MAX_NO_PACKSPECS ] ;
/** error protection methods for packets (0,1,16,32,37-128) */
int pprot [ JPWL_MAX_NO_PACKSPECS ] ;
/** enables writing of ESD, (0/2/4 bytes) */
int sens_size ;
/** sensitivity addressing size (0=auto/2/4 bytes) */
int sens_addr ;
/** sensitivity range (0-3) */
int sens_range ;
/** sensitivity method for MH (-1,0-7) */
int sens_MH ;
/** tile number of sensitivity specification (>=0) */
int sens_TPH_tileno [ JPWL_MAX_NO_TILESPECS ] ;
/** sensitivity methods for TPHs (-1,0-7) */
int sens_TPH [ JPWL_MAX_NO_TILESPECS ] ;
/** enables JPWL correction at the decoder */
OPJ_BOOL correct ;
/** expected number of components at the decoder */
int exp_comps ;
/** maximum number of tiles at the decoder */
OPJ_UINT32 max_tiles ;
# endif /* USE_JPWL */
/******** FLAGS *********/
/** if ppm == 1 --> there was a PPM marker*/
OPJ_BITFIELD ppm : 1 ;
/** tells if the parameter is a coding or decoding one */
OPJ_BITFIELD m_is_decoder : 1 ;
/** whether different bit depth or sign per component is allowed. Decoder only for ow */
OPJ_BITFIELD allow_different_bit_depth_sign : 1 ;
/* <<UniPG */
} opj_cp_t ;
typedef struct opj_j2k_dec {
/** locate in which part of the codestream the decoder is (main header, tile header, end) */
OPJ_UINT32 m_state ;
/**
* store decoding parameters common to all tiles ( information like COD , COC in main header )
*/
opj_tcp_t * m_default_tcp ;
OPJ_BYTE * m_header_data ;
OPJ_UINT32 m_header_data_size ;
/** to tell the tile part length */
OPJ_UINT32 m_sot_length ;
/** Only tiles index in the correct range will be decoded.*/
OPJ_UINT32 m_start_tile_x ;
OPJ_UINT32 m_start_tile_y ;
OPJ_UINT32 m_end_tile_x ;
OPJ_UINT32 m_end_tile_y ;
/** Index of the tile to decode (used in get_tile) */
OPJ_INT32 m_tile_ind_to_dec ;
/** Position of the last SOT marker read */
OPJ_OFF_T m_last_sot_read_pos ;
/**
* Indicate that the current tile - part is assume as the last tile part of the codestream .
* It is useful in the case of PSot is equal to zero . The sot length will be compute in the
* SOD reader function . FIXME NOT USED for the moment
*/
OPJ_BOOL m_last_tile_part ;
OPJ_UINT32 m_numcomps_to_decode ;
OPJ_UINT32 * m_comps_indices_to_decode ;
/** to tell that a tile can be decoded. */
OPJ_BITFIELD m_can_decode : 1 ;
OPJ_BITFIELD m_discard_tiles : 1 ;
OPJ_BITFIELD m_skip_data : 1 ;
/** TNsot correction : see issue 254 **/
OPJ_BITFIELD m_nb_tile_parts_correction_checked : 1 ;
OPJ_BITFIELD m_nb_tile_parts_correction : 1 ;
} opj_j2k_dec_t ;
typedef struct opj_j2k_enc {
/** Tile part number, regardless of poc, for each new poc, tp is reset to 1*/
OPJ_UINT32 m_current_poc_tile_part_number ; /* tp_num */
/** Tile part number currently coding, taking into account POC. m_current_tile_part_number holds the total number of tile parts while encoding the last tile part.*/
OPJ_UINT32 m_current_tile_part_number ; /*cur_tp_num */
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/* whether to generate TLM markers */
OPJ_BOOL m_TLM ;
/* whether the Ttlmi field in a TLM marker is a byte (otherwise a uint16) */
OPJ_BOOL m_Ttlmi_is_byte ;
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/**
locate the start position of the TLM marker
after encoding the tilepart , a jump ( in j2k_write_sod ) is done to the TLM marker to store the value of its length .
*/
OPJ_OFF_T m_tlm_start ;
/**
* Stores the sizes of the tlm .
*/
OPJ_BYTE * m_tlm_sot_offsets_buffer ;
/**
* The current offset of the tlm buffer .
*/
OPJ_BYTE * m_tlm_sot_offsets_current ;
/** Total num of tile parts in whole image = num tiles* num tileparts in each tile*/
/** used in TLMmarker*/
OPJ_UINT32 m_total_tile_parts ; /* totnum_tp */
/* encoded data for a tile */
OPJ_BYTE * m_encoded_tile_data ;
/* size of the encoded_data */
OPJ_UINT32 m_encoded_tile_size ;
/* encoded data for a tile */
OPJ_BYTE * m_header_tile_data ;
/* size of the encoded_data */
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OPJ_UINT32 m_header_tile_data_size ;
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/* whether to generate PLT markers */
OPJ_BOOL m_PLT ;
/* reserved bytes in m_encoded_tile_size for PLT markers */
OPJ_UINT32 m_reserved_bytes_for_PLT ;
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/** Number of components */
OPJ_UINT32 m_nb_comps ;
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} opj_j2k_enc_t ;
struct opj_tcd ;
/**
JPEG - 2000 codestream reader / writer
*/
typedef struct opj_j2k {
/* J2K codestream is decoded*/
OPJ_BOOL m_is_decoder ;
/* FIXME DOC*/
union {
opj_j2k_dec_t m_decoder ;
opj_j2k_enc_t m_encoder ;
}
m_specific_param ;
/** pointer to the internal/private encoded / decoded image */
opj_image_t * m_private_image ;
/* pointer to the output image (decoded)*/
opj_image_t * m_output_image ;
/** Coding parameters */
opj_cp_t m_cp ;
/** the list of procedures to exec **/
opj_procedure_list_t * m_procedure_list ;
/** the list of validation procedures to follow to make sure the code is valid **/
opj_procedure_list_t * m_validation_list ;
/** helper used to write the index file */
opj_codestream_index_t * cstr_index ;
/** number of the tile currently concern by coding/decoding */
OPJ_UINT32 m_current_tile_number ;
/** the current tile coder/decoder **/
struct opj_tcd * m_tcd ;
/** Thread pool */
opj_thread_pool_t * m_tp ;
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/** Image width coming from JP2 IHDR box. 0 from a pure codestream */
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OPJ_UINT32 ihdr_w ;
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/** Image height coming from JP2 IHDR box. 0 from a pure codestream */
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OPJ_UINT32 ihdr_h ;
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/** Set to 1 by the decoder initialization if OPJ_DPARAMETERS_DUMP_FLAG is set */
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unsigned int dump_state ;
}
opj_j2k_t ;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
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 opj_j2k_setup_decoder ( opj_j2k_t * j2k , opj_dparameters_t * parameters ) ;
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void opj_j2k_decoder_set_strict_mode ( opj_j2k_t * j2k , OPJ_BOOL strict ) ;
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OPJ_BOOL opj_j2k_set_threads ( opj_j2k_t * j2k , OPJ_UINT32 num_threads ) ;
/**
* Creates a J2K compression structure
*
* @ return Returns a handle to a J2K compressor if successful , returns NULL otherwise
*/
opj_j2k_t * opj_j2k_create_compress ( void ) ;
OPJ_BOOL opj_j2k_setup_encoder ( opj_j2k_t * p_j2k ,
opj_cparameters_t * parameters ,
opj_image_t * image ,
opj_event_mgr_t * p_manager ) ;
/**
Converts an enum type progression order to string type
*/
const char * opj_j2k_convert_progression_order ( OPJ_PROG_ORDER prg_order ) ;
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
/**
* Ends the decompression procedures and possibiliy add data to be read after the
* codestream .
*/
OPJ_BOOL opj_j2k_end_decompress ( opj_j2k_t * j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
/**
* Reads a jpeg2000 codestream header structure .
*
* @ param p_stream the stream to read data from .
* @ param p_j2k the jpeg2000 codec .
* @ param p_image FIXME DOC
* @ param p_manager the user event manager .
*
* @ return true if the box is valid .
*/
OPJ_BOOL opj_j2k_read_header ( opj_stream_private_t * p_stream ,
opj_j2k_t * p_j2k ,
opj_image_t * * p_image ,
opj_event_mgr_t * p_manager ) ;
/**
* Destroys a jpeg2000 codec .
*
* @ param p_j2k the jpeg20000 structure to destroy .
*/
void opj_j2k_destroy ( opj_j2k_t * p_j2k ) ;
/**
* Destroys a codestream index structure .
*
* @ param p_cstr_ind the codestream index parameter to destroy .
*/
void j2k_destroy_cstr_index ( opj_codestream_index_t * p_cstr_ind ) ;
/**
* Decode tile data .
* @ param p_j2k the jpeg2000 codec .
* @ param p_tile_index
* @ param p_data FIXME DOC
* @ param p_data_size FIXME DOC
* @ param p_stream the stream to write data to .
* @ param p_manager the user event manager .
*/
OPJ_BOOL opj_j2k_decode_tile ( opj_j2k_t * p_j2k ,
OPJ_UINT32 p_tile_index ,
OPJ_BYTE * p_data ,
OPJ_UINT32 p_data_size ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
/**
* Reads a tile header .
* @ param p_j2k the jpeg2000 codec .
* @ param p_tile_index FIXME DOC
* @ param p_data_size FIXME DOC
* @ param p_tile_x0 FIXME DOC
* @ param p_tile_y0 FIXME DOC
* @ param p_tile_x1 FIXME DOC
* @ param p_tile_y1 FIXME DOC
* @ param p_nb_comps FIXME DOC
* @ param p_go_on FIXME DOC
* @ param p_stream the stream to write data to .
* @ param p_manager the user event manager .
*/
OPJ_BOOL opj_j2k_read_tile_header ( opj_j2k_t * p_j2k ,
OPJ_UINT32 * p_tile_index ,
OPJ_UINT32 * p_data_size ,
OPJ_INT32 * p_tile_x0 ,
OPJ_INT32 * p_tile_y0 ,
OPJ_INT32 * p_tile_x1 ,
OPJ_INT32 * p_tile_y1 ,
OPJ_UINT32 * p_nb_comps ,
OPJ_BOOL * p_go_on ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
/** Sets the indices of the components to decode.
*
* @ param p_j2k the jpeg2000 codec .
* @ param numcomps Number of components to decode .
* @ param comps_indices Array of num_compts indices ( numbering starting at 0 )
* corresponding to the components to decode .
* @ param p_manager Event manager
*
* @ return OPJ_TRUE in case of success .
*/
OPJ_BOOL opj_j2k_set_decoded_components ( opj_j2k_t * p_j2k ,
OPJ_UINT32 numcomps ,
const OPJ_UINT32 * comps_indices ,
opj_event_mgr_t * p_manager ) ;
/**
* Sets the given area to be decoded . This function should be called right after opj_read_header and before any tile header reading .
*
* @ param p_j2k the jpeg2000 codec .
* @ param p_image FIXME DOC
* @ param p_start_x the left position of the rectangle to decode ( in image coordinates ) .
* @ param p_start_y the up position of the rectangle to decode ( in image coordinates ) .
* @ param p_end_x the right position of the rectangle to decode ( in image coordinates ) .
* @ param p_end_y the bottom position of the rectangle to decode ( in image coordinates ) .
* @ param p_manager the user event manager
*
* @ return true if the area could be set .
*/
OPJ_BOOL opj_j2k_set_decode_area ( opj_j2k_t * p_j2k ,
opj_image_t * p_image ,
OPJ_INT32 p_start_x , OPJ_INT32 p_start_y ,
OPJ_INT32 p_end_x , OPJ_INT32 p_end_y ,
opj_event_mgr_t * p_manager ) ;
/**
* Creates a J2K decompression structure .
*
* @ return a handle to a J2K decompressor if successful , NULL otherwise .
*/
opj_j2k_t * opj_j2k_create_decompress ( void ) ;
/**
* Dump some elements from the J2K decompression structure .
*
* @ param p_j2k the jpeg2000 codec .
* @ param flag flag to describe what elements are dump .
* @ param out_stream output stream where dump the elements .
*
*/
void j2k_dump ( opj_j2k_t * p_j2k , OPJ_INT32 flag , FILE * out_stream ) ;
/**
* Dump an image header structure .
*
* @ param image the image header to dump .
* @ param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
* @ param out_stream output stream where dump the elements .
*/
void j2k_dump_image_header ( opj_image_t * image , OPJ_BOOL dev_dump_flag ,
FILE * out_stream ) ;
/**
* Dump a component image header structure .
*
* @ param comp the component image header to dump .
* @ param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
* @ param out_stream output stream where dump the elements .
*/
void j2k_dump_image_comp_header ( opj_image_comp_t * comp , OPJ_BOOL dev_dump_flag ,
FILE * out_stream ) ;
/**
* Get the codestream info from a JPEG2000 codec .
*
* @ param p_j2k the component image header to dump .
*
* @ return the codestream information extract from the jpg2000 codec
*/
opj_codestream_info_v2_t * j2k_get_cstr_info ( opj_j2k_t * p_j2k ) ;
/**
* Get the codestream index from a JPEG2000 codec .
*
* @ param p_j2k the component image header to dump .
*
* @ return the codestream index extract from the jpg2000 codec
*/
opj_codestream_index_t * j2k_get_cstr_index ( opj_j2k_t * p_j2k ) ;
/**
* Decode an image from a JPEG - 2000 codestream
* @ param j2k J2K decompressor handle
* @ param p_stream FIXME DOC
* @ param p_image FIXME DOC
* @ param p_manager FIXME DOC
* @ return FIXME DOC
*/
OPJ_BOOL opj_j2k_decode ( opj_j2k_t * j2k ,
opj_stream_private_t * p_stream ,
opj_image_t * p_image ,
opj_event_mgr_t * p_manager ) ;
OPJ_BOOL opj_j2k_get_tile ( opj_j2k_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_image_t * p_image ,
opj_event_mgr_t * p_manager ,
OPJ_UINT32 tile_index ) ;
OPJ_BOOL opj_j2k_set_decoded_resolution_factor ( opj_j2k_t * p_j2k ,
OPJ_UINT32 res_factor ,
opj_event_mgr_t * p_manager ) ;
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/**
* Specify extra options for the encoder .
*
* @ param p_j2k the jpeg2000 codec .
* @ param p_options options
* @ param p_manager the user event manager
*
* @ see opj_encoder_set_extra_options ( ) for more details .
*/
OPJ_BOOL opj_j2k_encoder_set_extra_options (
opj_j2k_t * p_j2k ,
const char * const * p_options ,
opj_event_mgr_t * p_manager ) ;
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/**
* Writes a tile .
* @ param p_j2k the jpeg2000 codec .
* @ param p_tile_index FIXME DOC
* @ param p_data FIXME DOC
* @ param p_data_size FIXME DOC
* @ param p_stream the stream to write data to .
* @ param p_manager the user event manager .
*/
OPJ_BOOL opj_j2k_write_tile ( opj_j2k_t * p_j2k ,
OPJ_UINT32 p_tile_index ,
OPJ_BYTE * p_data ,
OPJ_UINT32 p_data_size ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
/**
* Encodes an image into a JPEG - 2000 codestream
*/
OPJ_BOOL opj_j2k_encode ( opj_j2k_t * p_j2k ,
opj_stream_private_t * cio ,
opj_event_mgr_t * p_manager ) ;
/**
* Starts a compression scheme , i . e . validates the codec parameters , writes the header .
*
* @ param p_j2k the jpeg2000 codec .
* @ param p_stream the stream object .
* @ param p_image FIXME DOC
* @ param p_manager the user event manager .
*
* @ return true if the codec is valid .
*/
OPJ_BOOL opj_j2k_start_compress ( opj_j2k_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_image_t * p_image ,
opj_event_mgr_t * p_manager ) ;
/**
* Ends the compression procedures and possibiliy add data to be read after the
* codestream .
*/
OPJ_BOOL opj_j2k_end_compress ( opj_j2k_t * p_j2k ,
opj_stream_private_t * cio ,
opj_event_mgr_t * p_manager ) ;
OPJ_BOOL opj_j2k_setup_mct_encoding ( opj_tcp_t * p_tcp , opj_image_t * p_image ) ;
# endif /* OPJ_J2K_H */
