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Diffstat (limited to 'extern/libopenjpeg/j2k.h')
| -rw-r--r-- | extern/libopenjpeg/j2k.h | 804 |
1 files changed, 204 insertions, 600 deletions
diff --git a/extern/libopenjpeg/j2k.h b/extern/libopenjpeg/j2k.h index d0f59d727d7..6338c290dfd 100644 --- a/extern/libopenjpeg/j2k.h +++ b/extern/libopenjpeg/j2k.h @@ -1,21 +1,11 @@ /* - * 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) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium + * Copyright (c) 2002-2007, 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) 2003-2007, Francois-Olivier Devaux and 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 @@ -65,8 +55,6 @@ The functions in J2K.C have for goal to read/write the several parts of the code #define J2K_CCP_QNTSTY_SIQNT 1 #define J2K_CCP_QNTSTY_SEQNT 2 -#define OPJ_J2K_DEFAULT_CBLK_DATA_SIZE 8192 - /* ----------------------------------------------------------------------- */ #define J2K_MS_SOC 0xff4f /**< SOC marker value */ @@ -89,13 +77,6 @@ The functions in J2K.C have for goal to read/write the several parts of the code #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) */ @@ -109,14 +90,14 @@ The functions in J2K.C have for goal to read/write the several parts of the code #endif /* USE_JPSEC */ /* <<UniPG */ + /* ----------------------------------------------------------------------- */ /** - * Values that specify the status of the decoding process when decoding the main header. - * These values may be combined with a | operator. - * */ +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 */ @@ -124,32 +105,9 @@ typedef enum J2K_STATUS { 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_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_STATE_ERR = 0x0080 /**< the decoding process has encountered an error */ } 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; - /* ----------------------------------------------------------------------- */ /** @@ -161,245 +119,161 @@ typedef enum T2_MODE { }J2K_T2_MODE; /** - * Quantization stepsize - */ +Quantization stepsize +*/ typedef struct opj_stepsize { /** exponent */ - OPJ_INT32 expn; + int expn; /** mantissa */ - OPJ_INT32 mant; + int mant; } opj_stepsize_t; /** Tile-component coding parameters */ -typedef struct opj_tccp -{ +typedef struct opj_tccp { /** coding style */ - OPJ_UINT32 csty; + int csty; /** number of resolutions */ - OPJ_UINT32 numresolutions; + int numresolutions; /** code-blocks width */ - OPJ_UINT32 cblkw; + int cblkw; /** code-blocks height */ - OPJ_UINT32 cblkh; + int cblkh; /** code-block coding style */ - OPJ_UINT32 cblksty; + int cblksty; /** discrete wavelet transform identifier */ - OPJ_UINT32 qmfbid; + int qmfbid; /** quantisation style */ - OPJ_UINT32 qntsty; + int qntsty; /** stepsizes used for quantization */ - opj_stepsize_t stepsizes[OPJ_J2K_MAXBANDS]; + opj_stepsize_t stepsizes[J2K_MAXBANDS]; /** number of guard bits */ - OPJ_UINT32 numgbits; + int numgbits; /** Region Of Interest shift */ - OPJ_INT32 roishift; + int roishift; /** precinct width */ - OPJ_UINT32 prcw[OPJ_J2K_MAXRLVLS]; + int prcw[J2K_MAXRLVLS]; /** precinct height */ - OPJ_UINT32 prch[OPJ_J2K_MAXRLVLS]; - /** the dc_level_shift **/ - OPJ_INT32 m_dc_level_shift; -} -opj_tccp_t; - - + int prch[J2K_MAXRLVLS]; +} 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_UINT32 m_is_irreversible : 1; -} -opj_simple_mcc_decorrelation_data_t; - -/** -Tile coding parameters : +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 -{ +typedef struct opj_tcp { + /** 1 : first part-tile of a tile */ + int first; /** coding style */ - OPJ_UINT32 csty; + int csty; /** progression order */ OPJ_PROG_ORDER prg; /** number of layers */ - OPJ_UINT32 numlayers; - OPJ_UINT32 num_layers_to_decode; + int numlayers; /** multi-component transform identifier */ - OPJ_UINT32 mct; + int mct; /** rates of layers */ - OPJ_FLOAT32 rates[100]; + float rates[100]; /** number of progression order changes */ - OPJ_UINT32 numpocs; + 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 */ - 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; + 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 */ - OPJ_FLOAT32 distoratio[100]; + float distoratio[100]; /** tile-component coding parameters */ opj_tccp_t *tccps; - /** 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 ppt == 1 --> there was a PPT marker for the present tile */ - OPJ_UINT32 ppt : 1; - /** indicates if a POC marker has been used O:NO, 1:YES */ - OPJ_UINT32 POC : 1; } opj_tcp_t; - - - -typedef struct opj_encoding_param -{ +/** +Coding parameters +*/ +typedef struct opj_cp { + /** Digital cinema profile*/ + OPJ_CINEMA_MODE cinema; /** 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; + int max_comp_size; + /** Size of the image in bits*/ + int img_size; + /** Rsiz*/ + OPJ_RSIZ_CAPABILITIES rsiz; + /** Enabling Tile part generation*/ + char tp_on; /** Flag determining tile part generation*/ - OPJ_BYTE m_tp_flag; + char tp_flag; + /** Position of tile part flag in progression order*/ + int tp_pos; /** allocation by rate/distortion */ - OPJ_UINT32 m_disto_alloc : 1; + int disto_alloc; /** allocation by fixed layer */ - OPJ_UINT32 m_fixed_alloc : 1; + int fixed_alloc; /** add fixed_quality */ - OPJ_UINT32 m_fixed_quality : 1; - /** Enabling Tile part generation*/ - OPJ_UINT32 m_tp_on : 1; -} -opj_encoding_param_t; - -typedef struct opj_decoding_param -{ + int fixed_quality; /** 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; + int 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; + int layer; + /** if == NO_LIMITATION, decode entire codestream; if == LIMIT_TO_MAIN_HEADER then only decode the main header */ + OPJ_LIMIT_DECODING limit_decoding; /** XTOsiz */ - OPJ_UINT32 tx0; /* MSD see norm */ + int tx0; /** YTOsiz */ - OPJ_UINT32 ty0; /* MSD see norm */ + int ty0; /** XTsiz */ - OPJ_UINT32 tdx; + int tdx; /** YTsiz */ - OPJ_UINT32 tdy; - /** comment */ - OPJ_CHAR *comment; + int tdy; + /** comment for coding */ + char *comment; /** number of tiles in width */ - OPJ_UINT32 tw; + int tw; /** number of tiles in heigth */ - OPJ_UINT32 th; - + 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 */ - 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; + unsigned char *ppm_data; /** 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; + 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) */ - OPJ_INT32 ppm_store; + int ppm_store; /** use in case of multiple marker PPM (case on non-finished previous info) */ - OPJ_INT32 ppm_previous; - + int ppm_previous; + /** ppmbug1 */ + int ppm_len; /** tile coding parameters */ opj_tcp_t *tcps; - - union - { - opj_decoding_param_t m_dec; - opj_encoding_param_t m_enc; - } - m_specific_param; - - + /** fixed layer */ + int *matrice; /* UniPG>> */ #ifdef USE_JPWL /** enables writing of EPC in MH, thus activating JPWL */ - OPJ_BOOL epc_on; + opj_bool epc_on; /** enables writing of EPB, in case of activated JPWL */ - OPJ_BOOL epb_on; + opj_bool epb_on; /** enables writing of ESD, in case of activated JPWL */ - OPJ_BOOL esd_on; + opj_bool esd_on; /** enables writing of informative techniques of ESD, in case of activated JPWL */ - OPJ_BOOL info_on; + opj_bool info_on; /** enables writing of RED, in case of activated JPWL */ - OPJ_BOOL red_on; + 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) */ @@ -425,418 +299,148 @@ typedef struct opj_cp /** sensitivity methods for TPHs (-1,0-7) */ int sens_TPH[JPWL_MAX_NO_TILESPECS]; /** enables JPWL correction at the decoder */ - OPJ_BOOL correct; + opj_bool correct; /** expected number of components at the decoder */ int exp_comps; /** maximum number of tiles at the decoder */ - OPJ_UINT32 max_tiles; + int max_tiles; #endif /* USE_JPWL */ - - /******** FLAGS *********/ - /** if ppm == 1 --> there was a PPM marker*/ - OPJ_UINT32 ppm : 1; - /** tells if the parameter is a coding or decoding one */ - OPJ_UINT32 m_is_decoder : 1; /* <<UniPG */ } opj_cp_t; +/** +JPEG-2000 codestream reader/writer +*/ +typedef struct opj_j2k { + /** codec context */ + opj_common_ptr cinfo; -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; - /** - * Decoded area set by the user - */ - OPJ_UINT32 m_DA_x0; - OPJ_UINT32 m_DA_y0; - OPJ_UINT32 m_DA_x1; - OPJ_UINT32 m_DA_y1; - - /** 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; - /** to tell that a tile can be decoded. */ - OPJ_UINT32 m_can_decode : 1; - OPJ_UINT32 m_discard_tiles : 1; - OPJ_UINT32 m_skip_data : 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 */ - + int state; + /** number of the tile curently concern by coding/decoding */ + int curtileno; + /** Tile part number*/ + int tp_num; + /** Tilepart number currently coding*/ + int cur_tp_num; + /** Total number of tileparts of the current tile*/ + int *cur_totnum_tp; /** - 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. + 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; - + int tlm_start; /** 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 */ - OPJ_UINT32 m_header_tile_data_size; - - -} 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; - + int totnum_tp; + /** + 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_codestream_index_t *cstr_index; - - /** number of the tile curently concern by coding/decoding */ - OPJ_UINT32 m_current_tile_number; - - /** the current tile coder/decoder **/ - struct opj_tcd * m_tcd; - -} -opj_j2k_t; - - - + opj_codestream_info_t *cstr_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 opj_j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters); - +void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters); /** - * Creates a J2K compression structure - * - * @return Returns a handle to a J2K compressor if successful, returns NULL otherwise +Decode an image from a JPEG-2000 codestream +@param j2k J2K 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_j2k_t* opj_j2k_create_compress(void); - - -void opj_j2k_setup_encoder( opj_j2k_t *p_j2k, - opj_cparameters_t *parameters, - opj_image_t *image, - opj_event_mgr_t * p_manager); - +opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info); /** -Converts an enum type progression order to string type +Decode an image form a JPT-stream (JPEG 2000, JPIP) +@param j2k J2K 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 */ -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 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 ); - +opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info); /** - * 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 elments are dump. - *@param out_stream output stream where dump the elements. - * +Creates a J2K compression structure +@param cinfo Codec context info +@return Returns a handle to a J2K compressor if successful, returns NULL otherwise */ -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); - +opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo); /** - * 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 +Destroy a J2K compressor handle +@param j2k J2K compressor handle to destroy */ -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); - - -/** - * 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 ); - +void j2k_destroy_compress(opj_j2k_t *j2k); /** - * 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); - +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); /** - * 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); +Converts an enum type progression order to string type +*/ +char *j2k_convert_progression_order(OPJ_PROG_ORDER prg_order); +/** +Encode an image into a JPEG-2000 codestream +@param j2k J2K 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 +*/ +opj_bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info); -OPJ_BOOL opj_j2k_setup_mct_encoding (opj_tcp_t * p_tcp, opj_image_t * p_image); +/* ----------------------------------------------------------------------- */ +/*@}*/ +/*@}*/ #endif /* __J2K_H */ |