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jpc_enc.c
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jpc_enc.c
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/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2003 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.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
*/
/******************************************************************************\
* Includes.
\******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <math.h>
#include <float.h>
#include "jasper/jas_types.h"
#include "jasper/jas_string.h"
#include "jasper/jas_malloc.h"
#include "jasper/jas_image.h"
#include "jasper/jas_fix.h"
#include "jasper/jas_tvp.h"
#include "jasper/jas_version.h"
#include "jasper/jas_math.h"
#include "jasper/jas_debug.h"
#include "jpc_flt.h"
#include "jpc_fix.h"
#include "jpc_tagtree.h"
#include "jpc_enc.h"
#include "jpc_cs.h"
#include "jpc_mct.h"
#include "jpc_tsfb.h"
#include "jpc_qmfb.h"
#include "jpc_t1enc.h"
#include "jpc_t2enc.h"
#include "jpc_cod.h"
#include "jpc_math.h"
#include "jpc_util.h"
/******************************************************************************\
*
\******************************************************************************/
#define JPC_POW2(n) \
(1 << (n))
#define JPC_FLOORTOMULTPOW2(x, n) \
(((n) > 0) ? ((x) & (~((1 << n) - 1))) : (x))
/* Round to the nearest multiple of the specified power of two in the
direction of negative infinity. */
#define JPC_CEILTOMULTPOW2(x, n) \
(((n) > 0) ? JPC_FLOORTOMULTPOW2(((x) + (1 << (n)) - 1), n) : (x))
/* Round to the nearest multiple of the specified power of two in the
direction of positive infinity. */
#define JPC_POW2(n) \
(1 << (n))
jpc_enc_tile_t *jpc_enc_tile_create(jpc_enc_cp_t *cp, jas_image_t *image, int tileno);
void jpc_enc_tile_destroy(jpc_enc_tile_t *tile);
static jpc_enc_tcmpt_t *tcmpt_create(jpc_enc_tcmpt_t *tcmpt, jpc_enc_cp_t *cp,
jas_image_t *image, jpc_enc_tile_t *tile);
static void tcmpt_destroy(jpc_enc_tcmpt_t *tcmpt);
static jpc_enc_rlvl_t *rlvl_create(jpc_enc_rlvl_t *rlvl, jpc_enc_cp_t *cp,
jpc_enc_tcmpt_t *tcmpt, jpc_tsfb_band_t *bandinfos);
static void rlvl_destroy(jpc_enc_rlvl_t *rlvl);
static jpc_enc_band_t *band_create(jpc_enc_band_t *band, jpc_enc_cp_t *cp,
jpc_enc_rlvl_t *rlvl, jpc_tsfb_band_t *bandinfos);
static void band_destroy(jpc_enc_band_t *bands);
static jpc_enc_prc_t *prc_create(jpc_enc_prc_t *prc, jpc_enc_cp_t *cp,
jpc_enc_band_t *band);
static void prc_destroy(jpc_enc_prc_t *prcs);
static jpc_enc_cblk_t *cblk_create(jpc_enc_cblk_t *cblk, jpc_enc_cp_t *cp,
jpc_enc_prc_t *prc);
static void cblk_destroy(jpc_enc_cblk_t *cblks);
int ratestrtosize(char *s, uint_fast32_t rawsize, uint_fast32_t *size);
static void pass_destroy(jpc_enc_pass_t *pass);
void jpc_enc_dump(jpc_enc_t *enc);
/******************************************************************************\
* Local prototypes.
\******************************************************************************/
int dump_passes(jpc_enc_pass_t *passes, int numpasses, jpc_enc_cblk_t *cblk);
void calcrdslopes(jpc_enc_cblk_t *cblk);
void dump_layeringinfo(jpc_enc_t *enc);
static int jpc_calcssexp(jpc_fix_t stepsize);
static int jpc_calcssmant(jpc_fix_t stepsize);
void jpc_quantize(jas_matrix_t *data, jpc_fix_t stepsize);
static int jpc_enc_encodemainhdr(jpc_enc_t *enc);
static int jpc_enc_encodemainbody(jpc_enc_t *enc);
int jpc_enc_encodetiledata(jpc_enc_t *enc);
jpc_enc_t *jpc_enc_create(jpc_enc_cp_t *cp, jas_stream_t *out, jas_image_t *image);
void jpc_enc_destroy(jpc_enc_t *enc);
static int jpc_enc_encodemainhdr(jpc_enc_t *enc);
static int jpc_enc_encodemainbody(jpc_enc_t *enc);
int jpc_enc_encodetiledata(jpc_enc_t *enc);
int rateallocate(jpc_enc_t *enc, int numlyrs, uint_fast32_t *cumlens);
int setins(int numvalues, jpc_flt_t *values, jpc_flt_t value);
static jpc_enc_cp_t *cp_create(char *optstr, jas_image_t *image);
void jpc_enc_cp_destroy(jpc_enc_cp_t *cp);
static uint_fast32_t jpc_abstorelstepsize(jpc_fix_t absdelta, int scaleexpn);
static uint_fast32_t jpc_abstorelstepsize(jpc_fix_t absdelta, int scaleexpn)
{
int p;
uint_fast32_t mant;
uint_fast32_t expn;
int n;
if (absdelta < 0) {
abort();
}
p = jpc_firstone(absdelta) - JPC_FIX_FRACBITS;
n = 11 - jpc_firstone(absdelta);
mant = ((n < 0) ? (absdelta >> (-n)) : (absdelta << n)) & 0x7ff;
expn = scaleexpn - p;
if (scaleexpn < p) {
abort();
}
return JPC_QCX_EXPN(expn) | JPC_QCX_MANT(mant);
}
typedef enum {
OPT_DEBUG,
OPT_IMGAREAOFFX,
OPT_IMGAREAOFFY,
OPT_TILEGRDOFFX,
OPT_TILEGRDOFFY,
OPT_TILEWIDTH,
OPT_TILEHEIGHT,
OPT_PRCWIDTH,
OPT_PRCHEIGHT,
OPT_CBLKWIDTH,
OPT_CBLKHEIGHT,
OPT_MODE,
OPT_PRG,
OPT_NOMCT,
OPT_MAXRLVLS,
OPT_SOP,
OPT_EPH,
OPT_LAZY,
OPT_TERMALL,
OPT_SEGSYM,
OPT_VCAUSAL,
OPT_RESET,
OPT_PTERM,
OPT_NUMGBITS,
OPT_RATE,
OPT_ILYRRATES,
OPT_JP2OVERHEAD
} optid_t;
jas_taginfo_t encopts[] = {
{OPT_DEBUG, "debug"},
{OPT_IMGAREAOFFX, "imgareatlx"},
{OPT_IMGAREAOFFY, "imgareatly"},
{OPT_TILEGRDOFFX, "tilegrdtlx"},
{OPT_TILEGRDOFFY, "tilegrdtly"},
{OPT_TILEWIDTH, "tilewidth"},
{OPT_TILEHEIGHT, "tileheight"},
{OPT_PRCWIDTH, "prcwidth"},
{OPT_PRCHEIGHT, "prcheight"},
{OPT_CBLKWIDTH, "cblkwidth"},
{OPT_CBLKHEIGHT, "cblkheight"},
{OPT_MODE, "mode"},
{OPT_PRG, "prg"},
{OPT_NOMCT, "nomct"},
{OPT_MAXRLVLS, "numrlvls"},
{OPT_SOP, "sop"},
{OPT_EPH, "eph"},
{OPT_LAZY, "lazy"},
{OPT_TERMALL, "termall"},
{OPT_SEGSYM, "segsym"},
{OPT_VCAUSAL, "vcausal"},
{OPT_PTERM, "pterm"},
{OPT_RESET, "resetprob"},
{OPT_NUMGBITS, "numgbits"},
{OPT_RATE, "rate"},
{OPT_ILYRRATES, "ilyrrates"},
{OPT_JP2OVERHEAD, "_jp2overhead"},
{-1, 0}
};
typedef enum {
PO_L = 0,
PO_R
} poid_t;
jas_taginfo_t prgordtab[] = {
{JPC_COD_LRCPPRG, "lrcp"},
{JPC_COD_RLCPPRG, "rlcp"},
{JPC_COD_RPCLPRG, "rpcl"},
{JPC_COD_PCRLPRG, "pcrl"},
{JPC_COD_CPRLPRG, "cprl"},
{-1, 0}
};
typedef enum {
MODE_INT,
MODE_REAL
} modeid_t;
jas_taginfo_t modetab[] = {
{MODE_INT, "int"},
{MODE_REAL, "real"},
{-1, 0}
};
/******************************************************************************\
* The main encoder entry point.
\******************************************************************************/
int jpc_encode(jas_image_t *image, jas_stream_t *out, char *optstr)
{
jpc_enc_t *enc;
jpc_enc_cp_t *cp;
enc = 0;
cp = 0;
jpc_initluts();
if (!(cp = cp_create(optstr, image))) {
jas_eprintf("invalid JP encoder options\n");
goto error;
}
if (!(enc = jpc_enc_create(cp, out, image))) {
goto error;
}
cp = 0;
/* Encode the main header. */
if (jpc_enc_encodemainhdr(enc)) {
goto error;
}
/* Encode the main body. This constitutes most of the encoding work. */
if (jpc_enc_encodemainbody(enc)) {
goto error;
}
/* Write EOC marker segment. */
if (!(enc->mrk = jpc_ms_create(JPC_MS_EOC))) {
goto error;
}
if (jpc_putms(enc->out, enc->cstate, enc->mrk)) {
jas_eprintf("cannot write EOI marker\n");
goto error;
}
jpc_ms_destroy(enc->mrk);
enc->mrk = 0;
if (jas_stream_flush(enc->out)) {
goto error;
}
jpc_enc_destroy(enc);
return 0;
error:
if (cp) {
jpc_enc_cp_destroy(cp);
}
if (enc) {
jpc_enc_destroy(enc);
}
return -1;
}
/******************************************************************************\
* Option parsing code.
\******************************************************************************/
static jpc_enc_cp_t *cp_create(char *optstr, jas_image_t *image)
{
jpc_enc_cp_t *cp;
jas_tvparser_t *tvp;
int ret;
int numilyrrates;
double *ilyrrates;
int i;
int tagid;
jpc_enc_tcp_t *tcp;
jpc_enc_tccp_t *tccp;
jpc_enc_ccp_t *ccp;
int cmptno;
uint_fast16_t rlvlno;
uint_fast16_t prcwidthexpn;
uint_fast16_t prcheightexpn;
bool enablemct;
uint_fast32_t jp2overhead;
uint_fast16_t lyrno;
uint_fast32_t hsteplcm;
uint_fast32_t vsteplcm;
bool mctvalid;
tvp = 0;
cp = 0;
ilyrrates = 0;
numilyrrates = 0;
if (!(cp = jas_malloc(sizeof(jpc_enc_cp_t)))) {
goto error;
}
prcwidthexpn = 15;
prcheightexpn = 15;
enablemct = true;
jp2overhead = 0;
cp->ccps = 0;
cp->debug = 0;
cp->imgareatlx = UINT_FAST32_MAX;
cp->imgareatly = UINT_FAST32_MAX;
cp->refgrdwidth = 0;
cp->refgrdheight = 0;
cp->tilegrdoffx = UINT_FAST32_MAX;
cp->tilegrdoffy = UINT_FAST32_MAX;
cp->tilewidth = 0;
cp->tileheight = 0;
cp->numcmpts = jas_image_numcmpts(image);
hsteplcm = 1;
vsteplcm = 1;
for (cmptno = 0; cmptno < jas_image_numcmpts(image); ++cmptno) {
if (jas_image_cmptbrx(image, cmptno) + jas_image_cmpthstep(image, cmptno) <=
jas_image_brx(image) || jas_image_cmptbry(image, cmptno) +
jas_image_cmptvstep(image, cmptno) <= jas_image_bry(image)) {
jas_eprintf("unsupported image type\n");
goto error;
}
/* Note: We ought to be calculating the LCMs here. Fix some day. */
hsteplcm *= jas_image_cmpthstep(image, cmptno);
vsteplcm *= jas_image_cmptvstep(image, cmptno);
}
if (!(cp->ccps = jas_alloc2(cp->numcmpts, sizeof(jpc_enc_ccp_t)))) {
goto error;
}
for (cmptno = 0, ccp = cp->ccps; cmptno < JAS_CAST(int, cp->numcmpts); ++cmptno,
++ccp) {
ccp->sampgrdstepx = jas_image_cmpthstep(image, cmptno);
ccp->sampgrdstepy = jas_image_cmptvstep(image, cmptno);
/* XXX - this isn't quite correct for more general image */
ccp->sampgrdsubstepx = 0;
ccp->sampgrdsubstepx = 0;
ccp->prec = jas_image_cmptprec(image, cmptno);
ccp->sgnd = jas_image_cmptsgnd(image, cmptno);
ccp->numstepsizes = 0;
memset(ccp->stepsizes, 0, sizeof(ccp->stepsizes));
}
cp->rawsize = jas_image_rawsize(image);
cp->totalsize = UINT_FAST32_MAX;
tcp = &cp->tcp;
tcp->csty = 0;
tcp->intmode = true;
tcp->prg = JPC_COD_LRCPPRG;
tcp->numlyrs = 1;
tcp->ilyrrates = 0;
tccp = &cp->tccp;
tccp->csty = 0;
tccp->maxrlvls = 6;
tccp->cblkwidthexpn = 6;
tccp->cblkheightexpn = 6;
tccp->cblksty = 0;
tccp->numgbits = 2;
if (!(tvp = jas_tvparser_create(optstr ? optstr : ""))) {
goto error;
}
while (!(ret = jas_tvparser_next(tvp))) {
switch (jas_taginfo_nonull(jas_taginfos_lookup(encopts,
jas_tvparser_gettag(tvp)))->id) {
case OPT_DEBUG:
cp->debug = atoi(jas_tvparser_getval(tvp));
break;
case OPT_IMGAREAOFFX:
cp->imgareatlx = atoi(jas_tvparser_getval(tvp));
break;
case OPT_IMGAREAOFFY:
cp->imgareatly = atoi(jas_tvparser_getval(tvp));
break;
case OPT_TILEGRDOFFX:
cp->tilegrdoffx = atoi(jas_tvparser_getval(tvp));
break;
case OPT_TILEGRDOFFY:
cp->tilegrdoffy = atoi(jas_tvparser_getval(tvp));
break;
case OPT_TILEWIDTH:
cp->tilewidth = atoi(jas_tvparser_getval(tvp));
break;
case OPT_TILEHEIGHT:
cp->tileheight = atoi(jas_tvparser_getval(tvp));
break;
case OPT_PRCWIDTH:
prcwidthexpn = jpc_floorlog2(atoi(jas_tvparser_getval(tvp)));
break;
case OPT_PRCHEIGHT:
prcheightexpn = jpc_floorlog2(atoi(jas_tvparser_getval(tvp)));
break;
case OPT_CBLKWIDTH:
tccp->cblkwidthexpn =
jpc_floorlog2(atoi(jas_tvparser_getval(tvp)));
break;
case OPT_CBLKHEIGHT:
tccp->cblkheightexpn =
jpc_floorlog2(atoi(jas_tvparser_getval(tvp)));
break;
case OPT_MODE:
if ((tagid = jas_taginfo_nonull(jas_taginfos_lookup(modetab,
jas_tvparser_getval(tvp)))->id) < 0) {
jas_eprintf("ignoring invalid mode %s\n",
jas_tvparser_getval(tvp));
} else {
tcp->intmode = (tagid == MODE_INT);
}
break;
case OPT_PRG:
if ((tagid = jas_taginfo_nonull(jas_taginfos_lookup(prgordtab,
jas_tvparser_getval(tvp)))->id) < 0) {
jas_eprintf("ignoring invalid progression order %s\n",
jas_tvparser_getval(tvp));
} else {
tcp->prg = tagid;
}
break;
case OPT_NOMCT:
enablemct = false;
break;
case OPT_MAXRLVLS:
tccp->maxrlvls = atoi(jas_tvparser_getval(tvp));
break;
case OPT_SOP:
cp->tcp.csty |= JPC_COD_SOP;
break;
case OPT_EPH:
cp->tcp.csty |= JPC_COD_EPH;
break;
case OPT_LAZY:
tccp->cblksty |= JPC_COX_LAZY;
break;
case OPT_TERMALL:
tccp->cblksty |= JPC_COX_TERMALL;
break;
case OPT_SEGSYM:
tccp->cblksty |= JPC_COX_SEGSYM;
break;
case OPT_VCAUSAL:
tccp->cblksty |= JPC_COX_VSC;
break;
case OPT_RESET:
tccp->cblksty |= JPC_COX_RESET;
break;
case OPT_PTERM:
tccp->cblksty |= JPC_COX_PTERM;
break;
case OPT_NUMGBITS:
cp->tccp.numgbits = atoi(jas_tvparser_getval(tvp));
break;
case OPT_RATE:
if (ratestrtosize(jas_tvparser_getval(tvp), cp->rawsize,
&cp->totalsize)) {
jas_eprintf("ignoring bad rate specifier %s\n",
jas_tvparser_getval(tvp));
}
break;
case OPT_ILYRRATES:
if (jpc_atoaf(jas_tvparser_getval(tvp), &numilyrrates,
&ilyrrates)) {
jas_eprintf("warning: invalid intermediate layer rates specifier ignored (%s)\n",
jas_tvparser_getval(tvp));
}
break;
case OPT_JP2OVERHEAD:
jp2overhead = atoi(jas_tvparser_getval(tvp));
break;
default:
jas_eprintf("warning: ignoring invalid option %s\n",
jas_tvparser_gettag(tvp));
break;
}
}
jas_tvparser_destroy(tvp);
tvp = 0;
if (cp->totalsize != UINT_FAST32_MAX) {
cp->totalsize = (cp->totalsize > jp2overhead) ?
(cp->totalsize - jp2overhead) : 0;
}
if (cp->imgareatlx == UINT_FAST32_MAX) {
cp->imgareatlx = 0;
} else {
if (hsteplcm != 1) {
jas_eprintf("warning: overriding imgareatlx value\n");
}
cp->imgareatlx *= hsteplcm;
}
if (cp->imgareatly == UINT_FAST32_MAX) {
cp->imgareatly = 0;
} else {
if (vsteplcm != 1) {
jas_eprintf("warning: overriding imgareatly value\n");
}
cp->imgareatly *= vsteplcm;
}
cp->refgrdwidth = cp->imgareatlx + jas_image_width(image);
cp->refgrdheight = cp->imgareatly + jas_image_height(image);
if (cp->tilegrdoffx == UINT_FAST32_MAX) {
cp->tilegrdoffx = cp->imgareatlx;
}
if (cp->tilegrdoffy == UINT_FAST32_MAX) {
cp->tilegrdoffy = cp->imgareatly;
}
if (!cp->tilewidth) {
cp->tilewidth = cp->refgrdwidth - cp->tilegrdoffx;
}
if (!cp->tileheight) {
cp->tileheight = cp->refgrdheight - cp->tilegrdoffy;
}
if (cp->numcmpts == 3) {
mctvalid = true;
for (cmptno = 0; cmptno < jas_image_numcmpts(image); ++cmptno) {
if (jas_image_cmptprec(image, cmptno) != jas_image_cmptprec(image, 0) ||
jas_image_cmptsgnd(image, cmptno) != jas_image_cmptsgnd(image, 0) ||
jas_image_cmptwidth(image, cmptno) != jas_image_cmptwidth(image, 0) ||
jas_image_cmptheight(image, cmptno) != jas_image_cmptheight(image, 0)) {
mctvalid = false;
}
}
} else {
mctvalid = false;
}
if (mctvalid && enablemct && jas_clrspc_fam(jas_image_clrspc(image)) != JAS_CLRSPC_FAM_RGB) {
jas_eprintf("warning: color space apparently not RGB\n");
}
if (mctvalid && enablemct && jas_clrspc_fam(jas_image_clrspc(image)) == JAS_CLRSPC_FAM_RGB) {
tcp->mctid = (tcp->intmode) ? (JPC_MCT_RCT) : (JPC_MCT_ICT);
} else {
tcp->mctid = JPC_MCT_NONE;
}
tccp->qmfbid = (tcp->intmode) ? (JPC_COX_RFT) : (JPC_COX_INS);
for (rlvlno = 0; rlvlno < tccp->maxrlvls; ++rlvlno) {
tccp->prcwidthexpns[rlvlno] = prcwidthexpn;
tccp->prcheightexpns[rlvlno] = prcheightexpn;
}
if (prcwidthexpn != 15 || prcheightexpn != 15) {
tccp->csty |= JPC_COX_PRT;
}
/* Ensure that the tile width and height is valid. */
if (!cp->tilewidth) {
jas_eprintf("invalid tile width %lu\n", (unsigned long)
cp->tilewidth);
goto error;
}
if (!cp->tileheight) {
jas_eprintf("invalid tile height %lu\n", (unsigned long)
cp->tileheight);
goto error;
}
/* Ensure that the tile grid offset is valid. */
if (cp->tilegrdoffx > cp->imgareatlx ||
cp->tilegrdoffy > cp->imgareatly ||
cp->tilegrdoffx + cp->tilewidth < cp->imgareatlx ||
cp->tilegrdoffy + cp->tileheight < cp->imgareatly) {
jas_eprintf("invalid tile grid offset (%lu, %lu)\n",
(unsigned long) cp->tilegrdoffx, (unsigned long)
cp->tilegrdoffy);
goto error;
}
cp->numhtiles = JPC_CEILDIV(cp->refgrdwidth - cp->tilegrdoffx,
cp->tilewidth);
cp->numvtiles = JPC_CEILDIV(cp->refgrdheight - cp->tilegrdoffy,
cp->tileheight);
cp->numtiles = cp->numhtiles * cp->numvtiles;
if (ilyrrates && numilyrrates > 0) {
tcp->numlyrs = numilyrrates + 1;
if (!(tcp->ilyrrates = jas_alloc2((tcp->numlyrs - 1),
sizeof(jpc_fix_t)))) {
goto error;
}
for (i = 0; i < JAS_CAST(int, tcp->numlyrs - 1); ++i) {
tcp->ilyrrates[i] = jpc_dbltofix(ilyrrates[i]);
}
}
/* Ensure that the integer mode is used in the case of lossless
coding. */
if (cp->totalsize == UINT_FAST32_MAX && (!cp->tcp.intmode)) {
jas_eprintf("cannot use real mode for lossless coding\n");
goto error;
}
/* Ensure that the precinct width is valid. */
if (prcwidthexpn > 15) {
jas_eprintf("invalid precinct width\n");
goto error;
}
/* Ensure that the precinct height is valid. */
if (prcheightexpn > 15) {
jas_eprintf("invalid precinct height\n");
goto error;
}
/* Ensure that the code block width is valid. */
if (cp->tccp.cblkwidthexpn < 2 || cp->tccp.cblkwidthexpn > 12) {
jas_eprintf("invalid code block width %d\n",
JPC_POW2(cp->tccp.cblkwidthexpn));
goto error;
}
/* Ensure that the code block height is valid. */
if (cp->tccp.cblkheightexpn < 2 || cp->tccp.cblkheightexpn > 12) {
jas_eprintf("invalid code block height %d\n",
JPC_POW2(cp->tccp.cblkheightexpn));
goto error;
}
/* Ensure that the code block size is not too large. */
if (cp->tccp.cblkwidthexpn + cp->tccp.cblkheightexpn > 12) {
jas_eprintf("code block size too large\n");
goto error;
}
/* Ensure that the number of layers is valid. */
if (cp->tcp.numlyrs > 16384) {
jas_eprintf("too many layers\n");
goto error;
}
/* There must be at least one resolution level. */
if (cp->tccp.maxrlvls < 1) {
jas_eprintf("must be at least one resolution level\n");
goto error;
}
/* Ensure that the number of guard bits is valid. */
if (cp->tccp.numgbits > 8) {
jas_eprintf("invalid number of guard bits\n");
goto error;
}
/* Ensure that the rate is within the legal range. */
if (cp->totalsize != UINT_FAST32_MAX && cp->totalsize > cp->rawsize) {
jas_eprintf("warning: specified rate is unreasonably large (%lu > %lu)\n", (unsigned long) cp->totalsize, (unsigned long) cp->rawsize);
}
/* Ensure that the intermediate layer rates are valid. */
if (tcp->numlyrs > 1) {
/* The intermediate layers rates must increase monotonically. */
for (lyrno = 0; lyrno + 2 < tcp->numlyrs; ++lyrno) {
if (tcp->ilyrrates[lyrno] >= tcp->ilyrrates[lyrno + 1]) {
jas_eprintf("intermediate layer rates must increase monotonically\n");
goto error;
}
}
/* The intermediate layer rates must be less than the overall rate. */
if (cp->totalsize != UINT_FAST32_MAX) {
for (lyrno = 0; lyrno < tcp->numlyrs - 1; ++lyrno) {
if (jpc_fixtodbl(tcp->ilyrrates[lyrno]) > ((double) cp->totalsize)
/ cp->rawsize) {
jas_eprintf("warning: intermediate layer rates must be less than overall rate\n");
goto error;
}
}
}
}
if (ilyrrates) {
jas_free(ilyrrates);
}
return cp;
error:
if (ilyrrates) {
jas_free(ilyrrates);
}
if (tvp) {
jas_tvparser_destroy(tvp);
}
if (cp) {
jpc_enc_cp_destroy(cp);
}
return 0;
}
void jpc_enc_cp_destroy(jpc_enc_cp_t *cp)
{
if (cp->ccps) {
if (cp->tcp.ilyrrates) {
jas_free(cp->tcp.ilyrrates);
}
jas_free(cp->ccps);
}
jas_free(cp);
}
int ratestrtosize(char *s, uint_fast32_t rawsize, uint_fast32_t *size)
{
char *cp;
jpc_flt_t f;
/* Note: This function must not modify output size on failure. */
if ((cp = strchr(s, 'B'))) {
*size = atoi(s);
} else {
f = atof(s);
if (f < 0) {
*size = 0;
} else if (f > 1.0) {
*size = rawsize + 1;
} else {
*size = f * rawsize;
}
}
return 0;
}
/******************************************************************************\
* Encoder constructor and destructor.
\******************************************************************************/
jpc_enc_t *jpc_enc_create(jpc_enc_cp_t *cp, jas_stream_t *out, jas_image_t *image)
{
jpc_enc_t *enc;
enc = 0;
if (!(enc = jas_malloc(sizeof(jpc_enc_t)))) {
goto error;
}
enc->image = image;
enc->out = out;
enc->cp = cp;
enc->cstate = 0;
enc->tmpstream = 0;
enc->mrk = 0;
enc->curtile = 0;
if (!(enc->cstate = jpc_cstate_create())) {
goto error;
}
enc->len = 0;
enc->mainbodysize = 0;
return enc;
error:
if (enc) {
jpc_enc_destroy(enc);
}
return 0;
}
void jpc_enc_destroy(jpc_enc_t *enc)
{
/* The image object (i.e., enc->image) and output stream object
(i.e., enc->out) are created outside of the encoder.
Therefore, they must not be destroyed here. */
if (enc->curtile) {
jpc_enc_tile_destroy(enc->curtile);
}
if (enc->cp) {
jpc_enc_cp_destroy(enc->cp);
}
if (enc->cstate) {
jpc_cstate_destroy(enc->cstate);
}
if (enc->tmpstream) {
jas_stream_close(enc->tmpstream);
}
jas_free(enc);
}
/******************************************************************************\
* Code.
\******************************************************************************/
static int jpc_calcssmant(jpc_fix_t stepsize)
{
int n;
int e;
int m;
n = jpc_firstone(stepsize);
e = n - JPC_FIX_FRACBITS;
if (n >= 11) {
m = (stepsize >> (n - 11)) & 0x7ff;
} else {
m = (stepsize & ((1 << n) - 1)) << (11 - n);
}
return m;
}
static int jpc_calcssexp(jpc_fix_t stepsize)
{
return jpc_firstone(stepsize) - JPC_FIX_FRACBITS;
}
static int jpc_enc_encodemainhdr(jpc_enc_t *enc)
{
jpc_siz_t *siz;
jpc_cod_t *cod;
jpc_qcd_t *qcd;
int i;
long startoff;
long mainhdrlen;
jpc_enc_cp_t *cp;
jpc_qcc_t *qcc;
jpc_enc_tccp_t *tccp;
uint_fast16_t cmptno;
jpc_tsfb_band_t bandinfos[JPC_MAXBANDS];
jpc_fix_t mctsynweight;
jpc_enc_tcp_t *tcp;
jpc_tsfb_t *tsfb;
jpc_tsfb_band_t *bandinfo;
uint_fast16_t numbands;
uint_fast16_t bandno;
uint_fast16_t rlvlno;
uint_fast16_t analgain;
jpc_fix_t absstepsize;
char buf[1024];
jpc_com_t *com;
cp = enc->cp;
startoff = jas_stream_getrwcount(enc->out);
/* Write SOC marker segment. */
if (!(enc->mrk = jpc_ms_create(JPC_MS_SOC))) {
return -1;
}
if (jpc_putms(enc->out, enc->cstate, enc->mrk)) {
jas_eprintf("cannot write SOC marker\n");
return -1;
}
jpc_ms_destroy(enc->mrk);
enc->mrk = 0;
/* Write SIZ marker segment. */
if (!(enc->mrk = jpc_ms_create(JPC_MS_SIZ))) {
return -1;
}
siz = &enc->mrk->parms.siz;
siz->caps = 0;
siz->xoff = cp->imgareatlx;
siz->yoff = cp->imgareatly;
siz->width = cp->refgrdwidth;
siz->height = cp->refgrdheight;
siz->tilexoff = cp->tilegrdoffx;
siz->tileyoff = cp->tilegrdoffy;
siz->tilewidth = cp->tilewidth;
siz->tileheight = cp->tileheight;
siz->numcomps = cp->numcmpts;
siz->comps = jas_alloc2(siz->numcomps, sizeof(jpc_sizcomp_t));
assert(siz->comps);
for (i = 0; i < JAS_CAST(int, cp->numcmpts); ++i) {
siz->comps[i].prec = cp->ccps[i].prec;
siz->comps[i].sgnd = cp->ccps[i].sgnd;
siz->comps[i].hsamp = cp->ccps[i].sampgrdstepx;
siz->comps[i].vsamp = cp->ccps[i].sampgrdstepy;
}
if (jpc_putms(enc->out, enc->cstate, enc->mrk)) {
jas_eprintf("cannot write SIZ marker\n");
return -1;
}
jpc_ms_destroy(enc->mrk);
enc->mrk = 0;
if (!(enc->mrk = jpc_ms_create(JPC_MS_COM))) {
return -1;
}
sprintf(buf, "Creator: JasPer Version %s", jas_getversion());
com = &enc->mrk->parms.com;
com->len = strlen(buf);
com->regid = JPC_COM_LATIN;
if (!(com->data = JAS_CAST(uchar *, jas_strdup(buf)))) {
abort();
}
if (jpc_putms(enc->out, enc->cstate, enc->mrk)) {
jas_eprintf("cannot write COM marker\n");
return -1;
}
jpc_ms_destroy(enc->mrk);
enc->mrk = 0;
#if 0
if (!(enc->mrk = jpc_ms_create(JPC_MS_CRG))) {
return -1;
}
crg = &enc->mrk->parms.crg;
crg->comps = jas_alloc2(crg->numcomps, sizeof(jpc_crgcomp_t));
if (jpc_putms(enc->out, enc->cstate, enc->mrk)) {
jas_eprintf("cannot write CRG marker\n");
return -1;
}
jpc_ms_destroy(enc->mrk);
enc->mrk = 0;
#endif
tcp = &cp->tcp;
tccp = &cp->tccp;
for (cmptno = 0; cmptno < cp->numcmpts; ++cmptno) {
tsfb = jpc_cod_gettsfb(tccp->qmfbid, tccp->maxrlvls - 1);
jpc_tsfb_getbands(tsfb, 0, 0, 1 << tccp->maxrlvls, 1 << tccp->maxrlvls,
bandinfos);
jpc_tsfb_destroy(tsfb);
mctsynweight = jpc_mct_getsynweight(tcp->mctid, cmptno);
numbands = 3 * tccp->maxrlvls - 2;
for (bandno = 0, bandinfo = bandinfos; bandno < numbands;
++bandno, ++bandinfo) {
rlvlno = (bandno) ? ((bandno - 1) / 3 + 1) : 0;