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Diffstat (limited to 'src/libjasper/jpc/jpc_enc.h')
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diff --git a/src/libjasper/jpc/jpc_enc.h b/src/libjasper/jpc/jpc_enc.h new file mode 100644 index 0000000..a29720b --- /dev/null +++ b/src/libjasper/jpc/jpc_enc.h @@ -0,0 +1,646 @@ +/* + * Copyright (c) 1999-2000 Image Power, Inc. and the University of + * British Columbia. + * Copyright (c) 2001-2002 Michael David Adams. + * All rights reserved. + */ + +/* __START_OF_JASPER_LICENSE__ + * + * JasPer License Version 2.0 + * + * Copyright (c) 2001-2006 Michael David Adams + * Copyright (c) 1999-2000 Image Power, Inc. + * Copyright (c) 1999-2000 The University of British Columbia + * + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person (the + * "User") obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, and/or sell copies of the Software, and to permit + * persons to whom the Software is furnished to do so, subject to the + * following conditions: + * + * 1. The above copyright notices and this permission notice (which + * includes the disclaimer below) shall be included in all copies or + * substantial portions of the Software. + * + * 2. The name of a copyright holder shall not be used to endorse or + * promote products derived from the Software without specific prior + * written permission. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS + * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS + * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL + * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING + * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE + * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE + * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. + * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS + * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL + * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS + * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE + * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE + * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL + * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL + * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH + * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, + * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH + * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY + * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * $Id: jpc_enc.h,v 1.1 2008/10/17 06:15:00 scuri Exp $ + */ + +#ifndef JPC_ENC_H +#define JPC_ENC_H + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include "jasper/jas_seq.h" + +#include "jpc_t2cod.h" +#include "jpc_mqenc.h" +#include "jpc_cod.h" +#include "jpc_tagtree.h" +#include "jpc_cs.h" +#include "jpc_flt.h" +#include "jpc_tsfb.h" + +/******************************************************************************\ +* Constants. +\******************************************************************************/ + +/* The number of bits used in various lookup tables. */ +#define JPC_NUMEXTRABITS JPC_NMSEDEC_FRACBITS + +/* An invalid R-D slope value. */ +#define JPC_BADRDSLOPE (-1) + +/******************************************************************************\ +* Coding parameters types. +\******************************************************************************/ + +/* Per-component coding paramters. */ + +typedef struct { + + /* The horizontal sampling period. */ + uint_fast8_t sampgrdstepx; + + /* The vertical sampling period. */ + uint_fast8_t sampgrdstepy; + + /* The sample alignment horizontal offset. */ + uint_fast8_t sampgrdsubstepx; + + /* The sample alignment vertical offset. */ + uint_fast8_t sampgrdsubstepy; + + /* The precision of the samples. */ + uint_fast8_t prec; + + /* The signedness of the samples. */ + bool sgnd; + + /* The number of step sizes. */ + uint_fast16_t numstepsizes; + + /* The quantizer step sizes. */ + uint_fast16_t stepsizes[JPC_MAXBANDS]; + +} jpc_enc_ccp_t; + +/* Per-tile coding parameters. */ + +typedef struct { + + /* The coding mode. */ + bool intmode; + + /* The coding style (i.e., SOP, EPH). */ + uint_fast8_t csty; + + /* The progression order. */ + uint_fast8_t prg; + + /* The multicomponent transform. */ + uint_fast8_t mctid; + + /* The number of layers. */ + uint_fast16_t numlyrs; + + /* The normalized bit rates associated with the various + intermediate layers. */ + jpc_fix_t *ilyrrates; + +} jpc_enc_tcp_t; + +/* Per tile-component coding parameters. */ + +typedef struct { + + /* The coding style (i.e., explicit precinct sizes). */ + uint_fast8_t csty; + + /* The maximum number of resolution levels allowed. */ + uint_fast8_t maxrlvls; + + /* The exponent for the nominal code block width. */ + uint_fast16_t cblkwidthexpn; + + /* The exponent for the nominal code block height. */ + uint_fast16_t cblkheightexpn; + + /* The code block style parameters (e.g., lazy, terminate all, + segmentation symbols, causal, reset probability models). */ + uint_fast8_t cblksty; + + /* The QMFB. */ + uint_fast8_t qmfbid; + + /* The precinct width values. */ + uint_fast16_t prcwidthexpns[JPC_MAXRLVLS]; + + /* The precinct height values. */ + uint_fast16_t prcheightexpns[JPC_MAXRLVLS]; + + /* The number of guard bits. */ + uint_fast8_t numgbits; + +} jpc_enc_tccp_t; + +/* Coding parameters. */ + +typedef struct { + + /* The debug level. */ + int debug; + + /* The horizontal offset from the origin of the reference grid to the + left edge of the image area. */ + uint_fast32_t imgareatlx; + + /* The vertical offset from the origin of the reference grid to the + top edge of the image area. */ + uint_fast32_t imgareatly; + + /* The horizontal offset from the origin of the reference grid to the + right edge of the image area (plus one). */ + uint_fast32_t refgrdwidth; + + /* The vertical offset from the origin of the reference grid to the + bottom edge of the image area (plus one). */ + uint_fast32_t refgrdheight; + + /* The horizontal offset from the origin of the tile grid to the + origin of the reference grid. */ + uint_fast32_t tilegrdoffx; + + /* The vertical offset from the origin of the tile grid to the + origin of the reference grid. */ + uint_fast32_t tilegrdoffy; + + /* The nominal tile width in units of the image reference grid. */ + uint_fast32_t tilewidth; + + /* The nominal tile height in units of the image reference grid. */ + uint_fast32_t tileheight; + + /* The number of tiles spanning the image area in the horizontal + direction. */ + uint_fast32_t numhtiles; + + /* The number of tiles spanning the image area in the vertical + direction. */ + uint_fast32_t numvtiles; + + /* The number of tiles. */ + uint_fast32_t numtiles; + + /* The number of components. */ + uint_fast16_t numcmpts; + + /* The per-component coding parameters. */ + jpc_enc_ccp_t *ccps; + + /* The per-tile coding parameters. */ + jpc_enc_tcp_t tcp; + + /* The per-tile-component coding parameters. */ + jpc_enc_tccp_t tccp; + + /* The target code stream length in bytes. */ + uint_fast32_t totalsize; + + /* The raw (i.e., uncompressed) size of the image in bytes. */ + uint_fast32_t rawsize; + +} jpc_enc_cp_t; + +/******************************************************************************\ +* Encoder class. +\******************************************************************************/ + +/* Encoder per-coding-pass state information. */ + +typedef struct { + + /* The starting offset for this pass. */ + int start; + + /* The ending offset for this pass. */ + int end; + + /* The type of data in this pass (i.e., MQ or raw). */ + int type; + + /* Flag indicating that this pass is terminated. */ + int term; + + /* The entropy coder state after coding this pass. */ + jpc_mqencstate_t mqencstate; + + /* The layer to which this pass has been assigned. */ + int lyrno; + + /* The R-D slope for this pass. */ + jpc_flt_t rdslope; + + /* The weighted MSE reduction associated with this pass. */ + jpc_flt_t wmsedec; + + /* The cumulative weighted MSE reduction. */ + jpc_flt_t cumwmsedec; + + /* The normalized MSE reduction. */ + long nmsedec; + +} jpc_enc_pass_t; + +/* Encoder per-code-block state information. */ + +typedef struct { + + /* The number of passes. */ + int numpasses; + + /* The per-pass information. */ + jpc_enc_pass_t *passes; + + /* The number of passes encoded so far. */ + int numencpasses; + + /* The number of insignificant MSBs. */ + int numimsbs; + + /* The number of bits used to encode pass data lengths. */ + int numlenbits; + + /* The byte stream for this code block. */ + jas_stream_t *stream; + + /* The entropy encoder. */ + jpc_mqenc_t *mqenc; + + /* The data for this code block. */ + jas_matrix_t *data; + + /* The state for this code block. */ + jas_matrix_t *flags; + + /* The number of bit planes required for this code block. */ + int numbps; + + /* The next pass to be encoded. */ + jpc_enc_pass_t *curpass; + + /* The per-code-block-group state information. */ + struct jpc_enc_prc_s *prc; + + /* The saved current pass. */ + /* This is used by the rate control code. */ + jpc_enc_pass_t *savedcurpass; + + /* The saved length indicator size. */ + /* This is used by the rate control code. */ + int savednumlenbits; + + /* The saved number of encoded passes. */ + /* This is used by the rate control code. */ + int savednumencpasses; + +} jpc_enc_cblk_t; + +/* Encoder per-code-block-group state information. */ + +typedef struct jpc_enc_prc_s { + + /* The x-coordinate of the top-left corner of the precinct. */ + uint_fast32_t tlx; + + /* The y-coordinate of the top-left corner of the precinct. */ + uint_fast32_t tly; + + /* The x-coordinate of the bottom-right corner of the precinct + (plus one). */ + uint_fast32_t brx; + + /* The y-coordinate of the bottom-right corner of the precinct + (plus one). */ + uint_fast32_t bry; + + /* The number of code blocks spanning the precinct in the horizontal + direction. */ + int numhcblks; + + /* The number of code blocks spanning the precinct in the vertical + direction. */ + int numvcblks; + + /* The total number of code blocks. */ + int numcblks; + + /* The per-code-block information. */ + jpc_enc_cblk_t *cblks; + + /* The inclusion tag tree. */ + jpc_tagtree_t *incltree; + + /* The insignifcant MSBs tag tree. */ + jpc_tagtree_t *nlibtree; + + /* The per-band information. */ + struct jpc_enc_band_s *band; + + /* The saved inclusion tag tree. */ + /* This is used by rate control. */ + jpc_tagtree_t *savincltree; + + /* The saved leading-insignificant-bit-planes tag tree. */ + /* This is used by rate control. */ + jpc_tagtree_t *savnlibtree; + +} jpc_enc_prc_t; + +/* Encoder per-band state information. */ + +typedef struct jpc_enc_band_s { + + /* The per precinct information. */ + jpc_enc_prc_t *prcs; + + /* The coefficient data for this band. */ + jas_matrix_t *data; + + /* The orientation of this band (i.e., LL, LH, HL, or HH). */ + int orient; + + /* The number of bit planes associated with this band. */ + int numbps; + + /* The quantizer step size. */ + jpc_fix_t absstepsize; + + /* The encoded quantizer step size. */ + int stepsize; + + /* The L2 norm of the synthesis basis functions associated with + this band. (The MCT is not considered in this value.) */ + jpc_fix_t synweight; + + /* The analysis gain for this band. */ + int analgain; + + /* The per-resolution-level information. */ + struct jpc_enc_rlvl_s *rlvl; + +} jpc_enc_band_t; + +/* Encoder per-resolution-level state information. */ + +typedef struct jpc_enc_rlvl_s { + + /* The x-coordinate of the top-left corner of the tile-component + at this resolution. */ + uint_fast32_t tlx; + + /* The y-coordinate of the top-left corner of the tile-component + at this resolution. */ + uint_fast32_t tly; + + /* The x-coordinate of the bottom-right corner of the tile-component + at this resolution (plus one). */ + uint_fast32_t brx; + + /* The y-coordinate of the bottom-right corner of the tile-component + at this resolution (plus one). */ + uint_fast32_t bry; + + /* The exponent value for the nominal precinct width measured + relative to the associated LL band. */ + int prcwidthexpn; + + /* The exponent value for the nominal precinct height measured + relative to the associated LL band. */ + int prcheightexpn; + + /* The number of precincts spanning the resolution level in the + horizontal direction. */ + int numhprcs; + + /* The number of precincts spanning the resolution level in the + vertical direction. */ + int numvprcs; + + /* The total number of precincts. */ + int numprcs; + + /* The exponent value for the nominal code block group width. + This quantity is associated with the next lower resolution level + (assuming that there is one). */ + int cbgwidthexpn; + + /* The exponent value for the nominal code block group height. + This quantity is associated with the next lower resolution level + (assuming that there is one). */ + int cbgheightexpn; + + /* The exponent value for the code block width. */ + uint_fast16_t cblkwidthexpn; + + /* The exponent value for the code block height. */ + uint_fast16_t cblkheightexpn; + + /* The number of bands associated with this resolution level. */ + int numbands; + + /* The per-band information. */ + jpc_enc_band_t *bands; + + /* The parent tile-component. */ + struct jpc_enc_tcmpt_s *tcmpt; + +} jpc_enc_rlvl_t; + +/* Encoder per-tile-component state information. */ + +typedef struct jpc_enc_tcmpt_s { + + /* The number of resolution levels. */ + int numrlvls; + + /* The per-resolution-level information. */ + jpc_enc_rlvl_t *rlvls; + + /* The tile-component data. */ + jas_matrix_t *data; + + /* The QMFB. */ + int qmfbid; + + /* The number of bands. */ + int numbands; + + /* The TSFB. */ + jpc_tsfb_t *tsfb; + + /* The synthesis energy weight (for the MCT). */ + jpc_fix_t synweight; + + /* The precinct width exponents. */ + int prcwidthexpns[JPC_MAXRLVLS]; + + /* The precinct height exponents. */ + int prcheightexpns[JPC_MAXRLVLS]; + + /* The code block width exponent. */ + int cblkwidthexpn; + + /* The code block height exponent. */ + int cblkheightexpn; + + /* Coding style (i.e., explicit precinct sizes). */ + int csty; + + /* Code block style. */ + int cblksty; + + /* The number of quantizer step sizes. */ + int numstepsizes; + + /* The encoded quantizer step sizes. */ + uint_fast16_t stepsizes[JPC_MAXBANDS]; + + /* The parent tile. */ + struct jpc_enc_tile_s *tile; + +} jpc_enc_tcmpt_t; + +/* Encoder per-tile state information. */ + +typedef struct jpc_enc_tile_s { + + /* The tile number. */ + uint_fast32_t tileno; + + /* The x-coordinate of the top-left corner of the tile measured with + respect to the reference grid. */ + uint_fast32_t tlx; + + /* The y-coordinate of the top-left corner of the tile measured with + respect to the reference grid. */ + uint_fast32_t tly; + + /* The x-coordinate of the bottom-right corner of the tile measured + with respect to the reference grid (plus one). */ + uint_fast32_t brx; + + /* The y-coordinate of the bottom-right corner of the tile measured + with respect to the reference grid (plus one). */ + uint_fast32_t bry; + + /* The coding style. */ + uint_fast8_t csty; + + /* The progression order. */ + uint_fast8_t prg; + + /* The number of layers. */ + int numlyrs; + + /* The MCT to employ (if any). */ + uint_fast8_t mctid; + + /* The packet iterator (used to determine the order of packet + generation). */ + jpc_pi_t *pi; + + /* The coding mode (i.e., integer or real). */ + bool intmode; + + /* The number of bytes to allocate to the various layers. */ + uint_fast32_t *lyrsizes; + + /* The number of tile-components. */ + int numtcmpts; + + /* The per tile-component information. */ + jpc_enc_tcmpt_t *tcmpts; + + /* The raw (i.e., uncompressed) size of this tile. */ + uint_fast32_t rawsize; + +} jpc_enc_tile_t; + +/* Encoder class. */ + +typedef struct jpc_enc_s { + + /* The image being encoded. */ + jas_image_t *image; + + /* The output stream. */ + jas_stream_t *out; + + /* The coding parameters. */ + jpc_enc_cp_t *cp; + + /* The tile currently being processed. */ + jpc_enc_tile_t *curtile; + + /* The code stream state. */ + jpc_cstate_t *cstate; + + /* The number of bytes output so far. */ + uint_fast32_t len; + + /* The number of bytes available for the main body of the code stream. */ + /* This is used for rate allocation purposes. */ + uint_fast32_t mainbodysize; + + /* The marker segment currently being processed. */ + /* This member is a convenience for making cleanup easier. */ + jpc_ms_t *mrk; + + /* The stream used to temporarily hold tile-part data. */ + jas_stream_t *tmpstream; + +} jpc_enc_t; + +#endif |