| /* |
| * 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 and Antonin Descampe |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team |
| * 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 __TCD_H |
| #define __TCD_H |
| /** |
| @file tcd.h |
| @brief Implementation of a tile coder/decoder (TCD) |
| |
| The functions in TCD.C have for goal to encode or decode each tile independently from |
| each other. The functions in TCD.C are used by some function in J2K.C. |
| */ |
| |
| /** @defgroup TCD TCD - Implementation of a tile coder/decoder */ |
| /*@{*/ |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_seg { |
| unsigned char** data; |
| int dataindex; |
| int numpasses; |
| int len; |
| int maxpasses; |
| int numnewpasses; |
| int newlen; |
| } opj_tcd_seg_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_pass { |
| int rate; |
| double distortiondec; |
| int term, len; |
| } opj_tcd_pass_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_layer { |
| int numpasses; /* Number of passes in the layer */ |
| int len; /* len of information */ |
| double disto; /* add for index (Cfr. Marcela) */ |
| unsigned char *data; /* data */ |
| } opj_tcd_layer_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_cblk_enc { |
| unsigned char* data; /* Data */ |
| opj_tcd_layer_t* layers; /* layer information */ |
| opj_tcd_pass_t* passes; /* information about the passes */ |
| int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int numbps; |
| int numlenbits; |
| int numpasses; /* number of pass already done for the code-blocks */ |
| int numpassesinlayers; /* number of passes in the layer */ |
| int totalpasses; /* total number of passes */ |
| } opj_tcd_cblk_enc_t; |
| |
| typedef struct opj_tcd_cblk_dec { |
| unsigned char* data; /* Data */ |
| opj_tcd_seg_t* segs; /* segments informations */ |
| int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int numbps; |
| int numlenbits; |
| int len; /* length */ |
| int numnewpasses; /* number of pass added to the code-blocks */ |
| int numsegs; /* number of segments */ |
| } opj_tcd_cblk_dec_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_precinct { |
| int x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int cw, ch; /* number of precinct in width and heigth */ |
| union{ /* code-blocks informations */ |
| opj_tcd_cblk_enc_t* enc; |
| opj_tcd_cblk_dec_t* dec; |
| } cblks; |
| opj_tgt_tree_t *incltree; /* inclusion tree */ |
| opj_tgt_tree_t *imsbtree; /* IMSB tree */ |
| } opj_tcd_precinct_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_band { |
| int x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int bandno; |
| opj_tcd_precinct_t *precincts; /* precinct information */ |
| int numbps; |
| float stepsize; |
| } opj_tcd_band_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_resolution { |
| int x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int pw, ph; |
| int numbands; /* number sub-band for the resolution level */ |
| opj_tcd_band_t bands[3]; /* subband information */ |
| } opj_tcd_resolution_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_tilecomp { |
| int x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int numresolutions; /* number of resolutions level */ |
| opj_tcd_resolution_t *resolutions; /* resolutions information */ |
| int *data; /* data of the component */ |
| int numpix; /* add fixed_quality */ |
| } opj_tcd_tilecomp_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_tile { |
| int x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */ |
| int numcomps; /* number of components in tile */ |
| opj_tcd_tilecomp_t *comps; /* Components information */ |
| int numpix; /* add fixed_quality */ |
| double distotile; /* add fixed_quality */ |
| double distolayer[100]; /* add fixed_quality */ |
| /** packet number */ |
| int packno; |
| } opj_tcd_tile_t; |
| |
| /** |
| FIXME: documentation |
| */ |
| typedef struct opj_tcd_image { |
| int tw, th; /* number of tiles in width and heigth */ |
| 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*/ |
| int tp_pos; |
| /** Tile part number*/ |
| int tp_num; |
| /** Current tile part number*/ |
| int cur_tp_num; |
| /** Total number of tileparts of the current tile*/ |
| int cur_totnum_tp; |
| /** Current Packet iterator number */ |
| int cur_pino; |
| /** codec context */ |
| opj_common_ptr cinfo; |
| |
| /** info on each image tile */ |
| opj_tcd_image_t *tcd_image; |
| /** image */ |
| opj_image_t *image; |
| /** coding parameters */ |
| opj_cp_t *cp; |
| /** pointer to the current encoded/decoded tile */ |
| opj_tcd_tile_t *tcd_tile; |
| /** coding/decoding parameters common to all tiles */ |
| opj_tcp_t *tcp; |
| /** current encoded/decoded tile */ |
| int tcd_tileno; |
| /** Time taken to encode a tile*/ |
| double encoding_time; |
| } opj_tcd_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); |
| /** |
| Create a new TCD handle |
| @param cinfo Codec context info |
| @return Returns a new TCD handle if successful returns NULL otherwise |
| */ |
| opj_tcd_t* tcd_create(opj_common_ptr cinfo); |
| /** |
| Destroy a previously created TCD handle |
| @param tcd TCD handle to destroy |
| */ |
| void tcd_destroy(opj_tcd_t *tcd); |
| /** |
| Initialize the tile coder (allocate the memory) |
| @param tcd TCD handle |
| @param image Raw image |
| @param cp Coding parameters |
| @param curtileno Number that identifies the tile that will be encoded |
| */ |
| void tcd_malloc_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno); |
| /** |
| Free the memory allocated for encoding |
| @param tcd TCD handle |
| */ |
| void tcd_free_encode(opj_tcd_t *tcd); |
| /** |
| Initialize the tile coder (reuses the memory allocated by tcd_malloc_encode) |
| @param tcd TCD handle |
| @param image Raw image |
| @param cp Coding parameters |
| @param curtileno Number that identifies the tile that will be encoded |
| */ |
| void tcd_init_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno); |
| /** |
| Initialize the tile decoder |
| @param tcd TCD handle |
| @param image Raw image |
| @param cp Coding parameters |
| */ |
| void tcd_malloc_decode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp); |
| void tcd_malloc_decode_tile(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int tileno, opj_codestream_info_t *cstr_info); |
| void tcd_makelayer_fixed(opj_tcd_t *tcd, int layno, int final); |
| void tcd_rateallocate_fixed(opj_tcd_t *tcd); |
| void tcd_makelayer(opj_tcd_t *tcd, int layno, double thresh, int final); |
| bool tcd_rateallocate(opj_tcd_t *tcd, unsigned char *dest, int len, opj_codestream_info_t *cstr_info); |
| /** |
| Encode a tile from the raw image into a buffer |
| @param tcd TCD handle |
| @param tileno Number that identifies one of the tiles to be encoded |
| @param dest Destination buffer |
| @param len Length of destination buffer |
| @param cstr_info Codestream information structure |
| @return |
| */ |
| int tcd_encode_tile(opj_tcd_t *tcd, int tileno, unsigned char *dest, int len, opj_codestream_info_t *cstr_info); |
| /** |
| Decode a tile from a buffer into a raw image |
| @param tcd TCD handle |
| @param src Source buffer |
| @param len Length of source buffer |
| @param tileno Number that identifies one of the tiles to be decoded |
| */ |
| bool tcd_decode_tile(opj_tcd_t *tcd, unsigned char *src, int len, int tileno, opj_codestream_info_t *cstr_info); |
| /** |
| Free the memory allocated for decoding |
| @param tcd TCD handle |
| */ |
| void tcd_free_decode(opj_tcd_t *tcd); |
| void tcd_free_decode_tile(opj_tcd_t *tcd, int tileno); |
| |
| /* ----------------------------------------------------------------------- */ |
| /*@}*/ |
| |
| /*@}*/ |
| |
| #endif /* __TCD_H */ |