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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;
/* 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 */
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;
/* number of pixels */
OPJ_SIZE_T numpix;
} 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 */
OPJ_SIZE_T numpix; /* number of pixels */
OPJ_FLOAT64 distotile; /* distortion of the tile */
OPJ_FLOAT64 distolayer[100]; /* distortion per layer */
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;
/**
* 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;
/** @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);
/**
* 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);
/**
* 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
* @param p_marker_info Marker information structure
* @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,
opj_tcd_marker_info_t* p_marker_info,
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);
/**
* 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()
*/
OPJ_SIZE_T opj_tcd_get_encoder_input_buffer_size(opj_tcd_t *p_tcd);
/**
* 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.
*
* p_src_length must be equal to opj_tcd_get_encoder_input_buffer_size()
*/
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 */