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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 ) 2008 , 2011 - 2012 , Centre National d ' Etudes Spatiales ( CNES ) , FR
* Copyright ( c ) 2012 , CS Systemes d ' Information , France
* Copyright ( c ) 2017 , IntoPIX SA < support @ intopix . com >
* 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_TCD_H
# define OPJ_TCD_H
/**
@ file tcd . h
@ brief Implementation of a tile coder / decoder ( TCD )
The functions in TCD . C encode or decode each tile independently from
each other . The functions in TCD . C are used by other functions in J2K . C .
*/
/** @defgroup TCD TCD - Implementation of a tile coder/decoder */
/*@{*/
/**
FIXME DOC
*/
typedef struct opj_tcd_pass {
OPJ_UINT32 rate ;
OPJ_FLOAT64 distortiondec ;
OPJ_UINT32 len ;
OPJ_BITFIELD term : 1 ;
} opj_tcd_pass_t ;
/**
FIXME DOC
*/
typedef struct opj_tcd_layer {
OPJ_UINT32 numpasses ; /* Number of passes in the layer */
OPJ_UINT32 len ; /* len of information */
OPJ_FLOAT64 disto ; /* add for index (Cfr. Marcela) */
OPJ_BYTE * data ; /* data */
} opj_tcd_layer_t ;
/**
FIXME DOC
*/
typedef struct opj_tcd_cblk_enc {
OPJ_BYTE * data ; /* Data */
opj_tcd_layer_t * layers ; /* layer information */
opj_tcd_pass_t * passes ; /* information about the passes */
OPJ_INT32 x0 , y0 , x1 ,
y1 ; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_UINT32 numbps ;
OPJ_UINT32 numlenbits ;
OPJ_UINT32 data_size ; /* Size of allocated data buffer */
OPJ_UINT32
numpasses ; /* number of pass already done for the code-blocks */
OPJ_UINT32 numpassesinlayers ; /* number of passes in the layer */
OPJ_UINT32 totalpasses ; /* total number of passes */
} opj_tcd_cblk_enc_t ;
/** Chunk of codestream data that is part of a code block */
typedef struct opj_tcd_seg_data_chunk {
/* Point to tilepart buffer. We don't make a copy !
So the tilepart buffer must be kept alive
as long as we need to decode the codeblocks */
OPJ_BYTE * data ;
OPJ_UINT32 len ; /* Usable length of data */
} opj_tcd_seg_data_chunk_t ;
/** Segment of a code-block.
* A segment represent a number of consecutive coding passes , without termination
* of MQC or RAW between them . */
typedef struct opj_tcd_seg {
OPJ_UINT32 len ; /* Size of data related to this segment */
/* Number of passes decoded. Including those that we skip */
OPJ_UINT32 numpasses ;
/* Number of passes actually to be decoded. To be used for code-block decoding */
OPJ_UINT32 real_num_passes ;
/* Maximum number of passes for this segment */
OPJ_UINT32 maxpasses ;
/* Number of new passes for current packed. Transitory value */
OPJ_UINT32 numnewpasses ;
/* Codestream length for this segment for current packed. Transitory value */
OPJ_UINT32 newlen ;
} opj_tcd_seg_t ;
/** Code-block for decoding */
typedef struct opj_tcd_cblk_dec {
opj_tcd_seg_t * segs ; /* segments information */
opj_tcd_seg_data_chunk_t * chunks ; /* Array of chunks */
/* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
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/* Mb is The maximum number of bit-planes available for the representation of
coefficients in any sub - band , b , as defined in Equation ( E - 2 ) . See
Section B .10 .5 of the standard */
OPJ_UINT32 Mb ; /* currently used only to check if HT decoding is correct */
/* numbps is Mb - P as defined in Section B.10.5 of the standard */
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OPJ_UINT32 numbps ;
/* number of bits for len, for the current packet. Transitory value */
OPJ_UINT32 numlenbits ;
/* number of pass added to the code-blocks, for the current packet. Transitory value */
OPJ_UINT32 numnewpasses ;
/* number of segments, including those of packet we skip */
OPJ_UINT32 numsegs ;
/* number of segments, to be used for code block decoding */
OPJ_UINT32 real_num_segs ;
OPJ_UINT32 m_current_max_segs ; /* allocated number of segs[] items */
OPJ_UINT32 numchunks ; /* Number of valid chunks items */
OPJ_UINT32 numchunksalloc ; /* Number of chunks item allocated */
/* Decoded code-block. Only used for subtile decoding. Otherwise tilec->data is directly updated */
OPJ_INT32 * decoded_data ;
} opj_tcd_cblk_dec_t ;
/** Precinct structure */
typedef struct opj_tcd_precinct {
/* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
OPJ_UINT32 cw , ch ; /* number of code-blocks, in width and height */
union { /* code-blocks information */
opj_tcd_cblk_enc_t * enc ;
opj_tcd_cblk_dec_t * dec ;
void * blocks ;
} cblks ;
OPJ_UINT32 block_size ; /* size taken by cblks (in bytes) */
opj_tgt_tree_t * incltree ; /* inclusion tree */
opj_tgt_tree_t * imsbtree ; /* IMSB tree */
} opj_tcd_precinct_t ;
/** Sub-band structure */
typedef struct opj_tcd_band {
/* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
/* band number: for lowest resolution level (0=LL), otherwise (1=HL, 2=LH, 3=HH) */
OPJ_UINT32 bandno ;
/* precinct information */
opj_tcd_precinct_t * precincts ;
/* size of data taken by precincts */
OPJ_UINT32 precincts_data_size ;
OPJ_INT32 numbps ;
OPJ_FLOAT32 stepsize ;
} opj_tcd_band_t ;
/** Tile-component resolution structure */
typedef struct opj_tcd_resolution {
/* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
/* number of precincts, in width and height, for this resolution level */
OPJ_UINT32 pw , ph ;
/* number of sub-bands for the resolution level (1 for lowest resolution level, 3 otherwise) */
OPJ_UINT32 numbands ;
/* subband information */
opj_tcd_band_t bands [ 3 ] ;
/* dimension of the resolution limited to window of interest. Only valid if tcd->whole_tile_decoding is set */
OPJ_UINT32 win_x0 ;
OPJ_UINT32 win_y0 ;
OPJ_UINT32 win_x1 ;
OPJ_UINT32 win_y1 ;
} opj_tcd_resolution_t ;
/** Tile-component structure */
typedef struct opj_tcd_tilecomp {
/* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
/* component number */
OPJ_UINT32 compno ;
/* number of resolutions level */
OPJ_UINT32 numresolutions ;
/* number of resolutions level to decode (at max)*/
OPJ_UINT32 minimum_num_resolutions ;
/* resolutions information */
opj_tcd_resolution_t * resolutions ;
/* size of data for resolutions (in bytes) */
OPJ_UINT32 resolutions_size ;
/* data of the component. For decoding, only valid if tcd->whole_tile_decoding is set (so exclusive of data_win member) */
OPJ_INT32 * data ;
/* if true, then need to free after usage, otherwise do not free */
OPJ_BOOL ownsData ;
/* we may either need to allocate this amount of data, or re-use image data and ignore this value */
size_t data_size_needed ;
/* size of the data of the component */
size_t data_size ;
/** data of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set (so exclusive of data member) */
OPJ_INT32 * data_win ;
/* dimension of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set */
OPJ_UINT32 win_x0 ;
OPJ_UINT32 win_y0 ;
OPJ_UINT32 win_x1 ;
OPJ_UINT32 win_y1 ;
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/* number of pixels */
OPJ_SIZE_T numpix ;
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} opj_tcd_tilecomp_t ;
/**
FIXME DOC
*/
typedef struct opj_tcd_tile {
/* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
OPJ_INT32 x0 , y0 , x1 , y1 ;
OPJ_UINT32 numcomps ; /* number of components in tile */
opj_tcd_tilecomp_t * comps ; /* Components information */
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OPJ_SIZE_T numpix ; /* number of pixels */
OPJ_FLOAT64 distotile ; /* distortion of the tile */
OPJ_FLOAT64 distolayer [ 100 ] ; /* distortion per layer */
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OPJ_UINT32 packno ; /* packet number */
} opj_tcd_tile_t ;
/**
FIXME DOC
*/
typedef struct opj_tcd_image {
opj_tcd_tile_t * tiles ; /* Tiles information */
}
opj_tcd_image_t ;
/**
Tile coder / decoder
*/
typedef struct opj_tcd {
/** Position of the tilepart flag in Progression order*/
OPJ_INT32 tp_pos ;
/** Tile part number*/
OPJ_UINT32 tp_num ;
/** Current tile part number*/
OPJ_UINT32 cur_tp_num ;
/** Total number of tileparts of the current tile*/
OPJ_UINT32 cur_totnum_tp ;
/** Current Packet iterator number */
OPJ_UINT32 cur_pino ;
/** info on each image tile */
opj_tcd_image_t * tcd_image ;
/** image header */
opj_image_t * image ;
/** coding parameters */
opj_cp_t * cp ;
/** coding/decoding parameters common to all tiles */
opj_tcp_t * tcp ;
/** current encoded/decoded tile */
OPJ_UINT32 tcd_tileno ;
/** tell if the tcd is a decoder. */
OPJ_BITFIELD m_is_decoder : 1 ;
/** Thread pool */
opj_thread_pool_t * thread_pool ;
/** Coordinates of the window of interest, in grid reference space */
OPJ_UINT32 win_x0 ;
OPJ_UINT32 win_y0 ;
OPJ_UINT32 win_x1 ;
OPJ_UINT32 win_y1 ;
/** Only valid for decoding. Whether the whole tile is decoded, or just the region in win_x0/win_y0/win_x1/win_y1 */
OPJ_BOOL whole_tile_decoding ;
/* Array of size image->numcomps indicating if a component must be decoded. NULL if all components must be decoded */
OPJ_BOOL * used_component ;
} opj_tcd_t ;
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/**
* Structure to hold information needed to generate some markers .
* Used by encoder .
*/
typedef struct opj_tcd_marker_info {
/** In: Whether information to generate PLT markers in needed */
OPJ_BOOL need_PLT ;
/** OUT: Number of elements in p_packet_size[] array */
OPJ_UINT32 packet_count ;
/** OUT: Array of size packet_count, such that p_packet_size[i] is
* the size in bytes of the ith packet */
OPJ_UINT32 * p_packet_size ;
} opj_tcd_marker_info_t ;
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/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Dump the content of a tcd structure
*/
/*void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);*/ /* TODO MSD shoul use the new v2 structures */
/**
Create a new TCD handle
@ param p_is_decoder FIXME DOC
@ return Returns a new TCD handle if successful returns NULL otherwise
*/
opj_tcd_t * opj_tcd_create ( OPJ_BOOL p_is_decoder ) ;
/**
Destroy a previously created TCD handle
@ param tcd TCD handle to destroy
*/
void opj_tcd_destroy ( opj_tcd_t * tcd ) ;
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/**
* Create a new opj_tcd_marker_info_t * structure
* @ param need_PLT Whether information is needed to generate PLT markers .
*/
opj_tcd_marker_info_t * opj_tcd_marker_info_create ( OPJ_BOOL need_PLT ) ;
/**
Destroy a previously created opj_tcd_marker_info_t * structure
@ param p_tcd_marker_info Structure to destroy
*/
void opj_tcd_marker_info_destroy ( opj_tcd_marker_info_t * p_tcd_marker_info ) ;
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/**
* Initialize the tile coder and may reuse some memory .
* @ param p_tcd TCD handle .
* @ param p_image raw image .
* @ param p_cp coding parameters .
* @ param p_tp thread pool
*
* @ return true if the encoding values could be set ( false otherwise ) .
*/
OPJ_BOOL opj_tcd_init ( opj_tcd_t * p_tcd ,
opj_image_t * p_image ,
opj_cp_t * p_cp ,
opj_thread_pool_t * p_tp ) ;
/**
* Allocates memory for decoding a specific tile .
*
* @ param p_tcd the tile decoder .
* @ param p_tile_no the index of the tile received in sequence . This not necessarily lead to the
* tile at index p_tile_no .
* @ param p_manager the event manager .
*
* @ return true if the remaining data is sufficient .
*/
OPJ_BOOL opj_tcd_init_decode_tile ( opj_tcd_t * p_tcd , OPJ_UINT32 p_tile_no ,
opj_event_mgr_t * p_manager ) ;
/**
* Gets the maximum tile size that will be taken by the tile once decoded .
*/
OPJ_UINT32 opj_tcd_get_decoded_tile_size ( opj_tcd_t * p_tcd ,
OPJ_BOOL take_into_account_partial_decoding ) ;
/**
* Encodes a tile from the raw image into the given buffer .
* @ param p_tcd Tile Coder handle
* @ param p_tile_no Index of the tile to encode .
* @ param p_dest Destination buffer
* @ param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest
* @ param p_len Maximum length of the destination buffer
* @ param p_cstr_info Codestream information structure
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* @ param p_marker_info Marker information structure
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* @ param p_manager the user event manager
* @ return true if the coding is successful .
*/
OPJ_BOOL opj_tcd_encode_tile ( opj_tcd_t * p_tcd ,
OPJ_UINT32 p_tile_no ,
OPJ_BYTE * p_dest ,
OPJ_UINT32 * p_data_written ,
OPJ_UINT32 p_len ,
struct opj_codestream_info * p_cstr_info ,
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opj_tcd_marker_info_t * p_marker_info ,
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opj_event_mgr_t * p_manager ) ;
/**
Decode a tile from a buffer into a raw image
@ param tcd TCD handle
@ param win_x0 Upper left x of region to decode ( in grid coordinates )
@ param win_y0 Upper left y of region to decode ( in grid coordinates )
@ param win_x1 Lower right x of region to decode ( in grid coordinates )
@ param win_y1 Lower right y of region to decode ( in grid coordinates )
@ param numcomps_to_decode Size of the comps_indices array , or 0 if decoding all components .
@ param comps_indices Array of numcomps values representing the indices
of the components to decode ( relative to the
codestream , starting at 0 ) . Or NULL if decoding all components .
@ param src Source buffer
@ param len Length of source buffer
@ param tileno Number that identifies one of the tiles to be decoded
@ param cstr_info FIXME DOC
@ param manager the event manager .
*/
OPJ_BOOL opj_tcd_decode_tile ( opj_tcd_t * tcd ,
OPJ_UINT32 win_x0 ,
OPJ_UINT32 win_y0 ,
OPJ_UINT32 win_x1 ,
OPJ_UINT32 win_y1 ,
OPJ_UINT32 numcomps_to_decode ,
const OPJ_UINT32 * comps_indices ,
OPJ_BYTE * src ,
OPJ_UINT32 len ,
OPJ_UINT32 tileno ,
opj_codestream_index_t * cstr_info ,
opj_event_mgr_t * manager ) ;
/**
* Copies tile data from the system onto the given memory block .
*/
OPJ_BOOL opj_tcd_update_tile_data ( opj_tcd_t * p_tcd ,
OPJ_BYTE * p_dest ,
OPJ_UINT32 p_dest_length ) ;
/**
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* Get the size in bytes of the input buffer provided before encoded .
* This must be the size provided to the p_src_length argument of
* opj_tcd_copy_tile_data ( )
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*/
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OPJ_SIZE_T opj_tcd_get_encoder_input_buffer_size ( opj_tcd_t * p_tcd ) ;
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/**
* Initialize the tile coder and may reuse some meory .
*
* @ param p_tcd TCD handle .
* @ param p_tile_no current tile index to encode .
* @ param p_manager the event manager .
*
* @ return true if the encoding values could be set ( false otherwise ) .
*/
OPJ_BOOL opj_tcd_init_encode_tile ( opj_tcd_t * p_tcd ,
OPJ_UINT32 p_tile_no , opj_event_mgr_t * p_manager ) ;
/**
* Copies tile data from the given memory block onto the system .
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*
* p_src_length must be equal to opj_tcd_get_encoder_input_buffer_size ( )
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*/
OPJ_BOOL opj_tcd_copy_tile_data ( opj_tcd_t * p_tcd ,
OPJ_BYTE * p_src ,
OPJ_SIZE_T p_src_length ) ;
/**
* Allocates tile component data
*
*
*/
OPJ_BOOL opj_alloc_tile_component_data ( opj_tcd_tilecomp_t * l_tilec ) ;
/** Returns whether a sub-band is empty (i.e. whether it has a null area)
* @ param band Sub - band handle .
* @ return OPJ_TRUE whether the sub - band is empty .
*/
OPJ_BOOL opj_tcd_is_band_empty ( opj_tcd_band_t * band ) ;
/** Reinitialize a segment */
void opj_tcd_reinit_segment ( opj_tcd_seg_t * seg ) ;
/** Returns whether a sub-band region contributes to the area of interest
* tcd - > win_x0 , tcd - > win_y0 , tcd - > win_x1 , tcd - > win_y1 .
*
* @ param tcd TCD handle .
* @ param compno Component number
* @ param resno Resolution number
* @ param bandno Band number ( * not * band index , ie 0 , 1 , 2 or 3 )
* @ param x0 Upper left x in subband coordinates
* @ param y0 Upper left y in subband coordinates
* @ param x1 Lower right x in subband coordinates
* @ param y1 Lower right y in subband coordinates
* @ return OPJ_TRUE whether the sub - band region contributs to the area of
* interest .
*/
OPJ_BOOL opj_tcd_is_subband_area_of_interest ( opj_tcd_t * tcd ,
OPJ_UINT32 compno ,
OPJ_UINT32 resno ,
OPJ_UINT32 bandno ,
OPJ_UINT32 x0 ,
OPJ_UINT32 y0 ,
OPJ_UINT32 x1 ,
OPJ_UINT32 y1 ) ;
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
# endif /* OPJ_TCD_H */
