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openjpeg/libopenjpeg/j2k.c

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/*
* 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
* Copyright (c) 2006-2007, Parvatha Elangovan
* 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.
*/
#include "opj_includes.h"
/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Write the SOC marker (Start Of Codestream)
@param j2k J2K handle
*/
static void j2k_write_soc(opj_j2k_t *j2k);
/**
Read the SOC marker (Start of Codestream)
@param j2k J2K handle
*/
static void j2k_read_soc(opj_j2k_t *j2k);
/**
Write the SIZ marker (image and tile size)
@param j2k J2K handle
*/
static void j2k_write_siz(opj_j2k_t *j2k);
/**
Read the SIZ marker (image and tile size)
@param j2k J2K handle
*/
static void j2k_read_siz(opj_j2k_t *j2k);
/**
Write the COM marker (comment)
@param j2k J2K handle
*/
static void j2k_write_com(opj_j2k_t *j2k);
/**
Read the COM marker (comment)
@param j2k J2K handle
*/
static void j2k_read_com(opj_j2k_t *j2k);
/**
Write the value concerning the specified component in the marker COD and COC
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_cox(opj_j2k_t *j2k, int compno);
/**
Read the value concerning the specified component in the marker COD and COC
@param j2k J2K handle
@param compno Number of the component concerned by the information read
*/
static void j2k_read_cox(opj_j2k_t *j2k, int compno);
/**
Write the COD marker (coding style default)
@param j2k J2K handle
*/
static void j2k_write_cod(opj_j2k_t *j2k);
/**
Read the COD marker (coding style default)
@param j2k J2K handle
*/
static void j2k_read_cod(opj_j2k_t *j2k);
/**
Write the COC marker (coding style component)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_coc(opj_j2k_t *j2k, int compno);
/**
Read the COC marker (coding style component)
@param j2k J2K handle
*/
static void j2k_read_coc(opj_j2k_t *j2k);
/**
Write the value concerning the specified component in the marker QCD and QCC
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_qcx(opj_j2k_t *j2k, int compno);
/**
Read the value concerning the specified component in the marker QCD and QCC
@param j2k J2K handle
@param compno Number of the component concern by the information read
@param len Length of the information in the QCX part of the marker QCD/QCC
*/
static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len);
/**
Write the QCD marker (quantization default)
@param j2k J2K handle
*/
static void j2k_write_qcd(opj_j2k_t *j2k);
/**
Read the QCD marker (quantization default)
@param j2k J2K handle
*/
static void j2k_read_qcd(opj_j2k_t *j2k);
/**
Write the QCC marker (quantization component)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
*/
static void j2k_write_qcc(opj_j2k_t *j2k, int compno);
/**
Read the QCC marker (quantization component)
@param j2k J2K handle
*/
static void j2k_read_qcc(opj_j2k_t *j2k);
/**
Write the POC marker (progression order change)
@param j2k J2K handle
*/
static void j2k_write_poc(opj_j2k_t *j2k);
/**
Read the POC marker (progression order change)
@param j2k J2K handle
*/
static void j2k_read_poc(opj_j2k_t *j2k);
/**
Read the CRG marker (component registration)
@param j2k J2K handle
*/
static void j2k_read_crg(opj_j2k_t *j2k);
/**
Read the TLM marker (tile-part lengths)
@param j2k J2K handle
*/
static void j2k_read_tlm(opj_j2k_t *j2k);
/**
Read the PLM marker (packet length, main header)
@param j2k J2K handle
*/
static void j2k_read_plm(opj_j2k_t *j2k);
/**
Read the PLT marker (packet length, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_plt(opj_j2k_t *j2k);
/**
Read the PPM marker (packet packet headers, main header)
@param j2k J2K handle
*/
static void j2k_read_ppm(opj_j2k_t *j2k);
/**
Read the PPT marker (packet packet headers, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_ppt(opj_j2k_t *j2k);
/**
Write the TLM marker (Mainheader)
@param j2k J2K handle
*/
static void j2k_write_tlm(opj_j2k_t *j2k);
/**
Write the SOT marker (start of tile-part)
@param j2k J2K handle
*/
static void j2k_write_sot(opj_j2k_t *j2k);
/**
Read the SOT marker (start of tile-part)
@param j2k J2K handle
*/
static void j2k_read_sot(opj_j2k_t *j2k);
/**
Write the SOD marker (start of data)
@param j2k J2K handle
@param tile_coder Pointer to a TCD handle
*/
static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder);
/**
Read the SOD marker (start of data)
@param j2k J2K handle
*/
static void j2k_read_sod(opj_j2k_t *j2k);
/**
Write the RGN marker (region-of-interest)
@param j2k J2K handle
@param compno Number of the component concerned by the information written
@param tileno Number of the tile concerned by the information written
*/
static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno);
/**
Read the RGN marker (region-of-interest)
@param j2k J2K handle
*/
static void j2k_read_rgn(opj_j2k_t *j2k);
/**
Write the EOC marker (end of codestream)
@param j2k J2K handle
*/
static void j2k_write_eoc(opj_j2k_t *j2k);
/**
Read the EOC marker (end of codestream)
@param j2k J2K handle
*/
static void j2k_read_eoc(opj_j2k_t *j2k);
/**
Read an unknown marker
@param j2k J2K handle
*/
static void j2k_read_unk(opj_j2k_t *j2k);
/*@}*/
/*@}*/
/* ----------------------------------------------------------------------- */
typedef struct j2k_prog_order{
OPJ_PROG_ORDER enum_prog;
char str_prog[4];
}j2k_prog_order_t;
j2k_prog_order_t j2k_prog_order_list[] = {
{CPRL, "CPRL"},
{LRCP, "LRCP"},
{PCRL, "PCRL"},
{RLCP, "RLCP"},
{RPCL, "RPCL"},
{(OPJ_PROG_ORDER)-1, ""}
};
char *j2k_convert_progression_order(OPJ_PROG_ORDER prg_order){
j2k_prog_order_t *po;
for(po = j2k_prog_order_list; po->enum_prog != -1; po++ ){
if(po->enum_prog == prg_order){
break;
}
}
return po->str_prog;
}
void j2k_dump_image(FILE *fd, opj_image_t * img) {
int compno;
fprintf(fd, "image {\n");
fprintf(fd, " x0=%d, y0=%d, x1=%d, y1=%d\n", img->x0, img->y0, img->x1, img->y1);
fprintf(fd, " numcomps=%d\n", img->numcomps);
for (compno = 0; compno < img->numcomps; compno++) {
opj_image_comp_t *comp = &img->comps[compno];
fprintf(fd, " comp %d {\n", compno);
fprintf(fd, " dx=%d, dy=%d\n", comp->dx, comp->dy);
fprintf(fd, " prec=%d\n", comp->prec);
//fprintf(fd, " bpp=%d\n", comp->bpp);
fprintf(fd, " sgnd=%d\n", comp->sgnd);
fprintf(fd, " }\n");
}
fprintf(fd, "}\n");
}
void j2k_dump_cp(FILE *fd, opj_image_t * img, opj_cp_t * cp) {
int tileno, compno, layno, bandno, resno, numbands;
fprintf(fd, "coding parameters {\n");
fprintf(fd, " tx0=%d, ty0=%d\n", cp->tx0, cp->ty0);
fprintf(fd, " tdx=%d, tdy=%d\n", cp->tdx, cp->tdy);
fprintf(fd, " tw=%d, th=%d\n", cp->tw, cp->th);
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
opj_tcp_t *tcp = &cp->tcps[tileno];
fprintf(fd, " tile %d {\n", tileno);
fprintf(fd, " csty=%x\n", tcp->csty);
fprintf(fd, " prg=%d\n", tcp->prg);
fprintf(fd, " numlayers=%d\n", tcp->numlayers);
fprintf(fd, " mct=%d\n", tcp->mct);
fprintf(fd, " rates=");
for (layno = 0; layno < tcp->numlayers; layno++) {
fprintf(fd, "%.1f ", tcp->rates[layno]);
}
fprintf(fd, "\n");
for (compno = 0; compno < img->numcomps; compno++) {
opj_tccp_t *tccp = &tcp->tccps[compno];
fprintf(fd, " comp %d {\n", compno);
fprintf(fd, " csty=%x\n", tccp->csty);
fprintf(fd, " numresolutions=%d\n", tccp->numresolutions);
fprintf(fd, " cblkw=%d\n", tccp->cblkw);
fprintf(fd, " cblkh=%d\n", tccp->cblkh);
fprintf(fd, " cblksty=%x\n", tccp->cblksty);
fprintf(fd, " qmfbid=%d\n", tccp->qmfbid);
fprintf(fd, " qntsty=%d\n", tccp->qntsty);
fprintf(fd, " numgbits=%d\n", tccp->numgbits);
fprintf(fd, " roishift=%d\n", tccp->roishift);
fprintf(fd, " stepsizes=");
numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2;
for (bandno = 0; bandno < numbands; bandno++) {
fprintf(fd, "(%d,%d) ", tccp->stepsizes[bandno].mant,
tccp->stepsizes[bandno].expn);
}
fprintf(fd, "\n");
if (tccp->csty & J2K_CCP_CSTY_PRT) {
fprintf(fd, " prcw=");
for (resno = 0; resno < tccp->numresolutions; resno++) {
fprintf(fd, "%d ", tccp->prcw[resno]);
}
fprintf(fd, "\n");
fprintf(fd, " prch=");
for (resno = 0; resno < tccp->numresolutions; resno++) {
fprintf(fd, "%d ", tccp->prch[resno]);
}
fprintf(fd, "\n");
}
fprintf(fd, " }\n");
}
fprintf(fd, " }\n");
}
fprintf(fd, "}\n");
}
/* ----------------------------------------------------------------------- */
static int j2k_get_num_tp(opj_cp_t *cp,int pino,int tileno){
char *prog;
int i;
int tpnum=1,tpend=0;
opj_tcp_t *tcp = &cp->tcps[tileno];
prog = j2k_convert_progression_order(tcp->prg);
if(cp->tp_on == 1){
for(i=0;i<4;i++){
if(tpend!=1){
if( cp->tp_flag == prog[i] ){
tpend=1;cp->tp_pos=i;
}
switch(prog[i]){
case 'C':
tpnum= tpnum * tcp->pocs[pino].compE;
break;
case 'R':
tpnum= tpnum * tcp->pocs[pino].resE;
break;
case 'P':
tpnum= tpnum * tcp->pocs[pino].prcE;
break;
case 'L':
tpnum= tpnum * tcp->pocs[pino].layE;
break;
}
}
}
}else{
tpnum=1;
}
return tpnum;
}
/** mem allocation for TLM marker*/
int j2k_calculate_tp(opj_cp_t *cp,int img_numcomp,opj_image_t *image,opj_j2k_t *j2k ){
int pino,tileno,totnum_tp=0;
j2k->cur_totnum_tp = (int *) opj_malloc(cp->tw * cp->th * sizeof(int));
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
int cur_totnum_tp = 0;
opj_tcp_t *tcp = &cp->tcps[tileno];
for(pino = 0; pino <= tcp->numpocs; pino++) {
int tp_num=0;
opj_pi_iterator_t *pi = pi_initialise_encode(image, cp, tileno,FINAL_PASS);
if(!pi) { return -1;}
tp_num = j2k_get_num_tp(cp,pino,tileno);
totnum_tp = totnum_tp + tp_num;
cur_totnum_tp = cur_totnum_tp + tp_num;
pi_destroy(pi, cp, tileno);
}
j2k->cur_totnum_tp[tileno] = cur_totnum_tp;
/* INDEX >> */
if (j2k->cstr_info) {
j2k->cstr_info->tile[tileno].num_tps = cur_totnum_tp;
j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(cur_totnum_tp * sizeof(opj_tp_info_t));
}
/* << INDEX */
}
return totnum_tp;
}
static void j2k_write_soc(opj_j2k_t *j2k) {
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_SOC, 2);
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(j2k->cstr_info, J2K_MS_SOC, cio_tell(cio) - 2, 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
static void j2k_read_soc(opj_j2k_t *j2k) {
j2k->state = J2K_STATE_MHSIZ;
/* Index */
if (j2k->cstr_info) {
j2k->cstr_info->main_head_start = cio_tell(j2k->cio) - 2;
j2k->cstr_info->codestream_size = cio_numbytesleft(j2k->cio) + 2 - j2k->cstr_info->main_head_start;
}
}
static void j2k_write_siz(opj_j2k_t *j2k) {
int i;
int lenp, len;
opj_cio_t *cio = j2k->cio;
opj_image_t *image = j2k->image;
opj_cp_t *cp = j2k->cp;
cio_write(cio, J2K_MS_SIZ, 2); /* SIZ */
lenp = cio_tell(cio);
cio_skip(cio, 2);
cio_write(cio, cp->rsiz, 2); /* Rsiz (capabilities) */
cio_write(cio, image->x1, 4); /* Xsiz */
cio_write(cio, image->y1, 4); /* Ysiz */
cio_write(cio, image->x0, 4); /* X0siz */
cio_write(cio, image->y0, 4); /* Y0siz */
cio_write(cio, cp->tdx, 4); /* XTsiz */
cio_write(cio, cp->tdy, 4); /* YTsiz */
cio_write(cio, cp->tx0, 4); /* XT0siz */
cio_write(cio, cp->ty0, 4); /* YT0siz */
cio_write(cio, image->numcomps, 2); /* Csiz */
for (i = 0; i < image->numcomps; i++) {
cio_write(cio, image->comps[i].prec - 1 + (image->comps[i].sgnd << 7), 1); /* Ssiz_i */
cio_write(cio, image->comps[i].dx, 1); /* XRsiz_i */
cio_write(cio, image->comps[i].dy, 1); /* YRsiz_i */
}
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lsiz */
cio_seek(cio, lenp + len);
}
static void j2k_read_siz(opj_j2k_t *j2k) {
int len, i;
opj_cio_t *cio = j2k->cio;
opj_image_t *image = j2k->image;
opj_cp_t *cp = j2k->cp;
len = cio_read(cio, 2); /* Lsiz */
cio_read(cio, 2); /* Rsiz (capabilities) */
image->x1 = cio_read(cio, 4); /* Xsiz */
image->y1 = cio_read(cio, 4); /* Ysiz */
image->x0 = cio_read(cio, 4); /* X0siz */
image->y0 = cio_read(cio, 4); /* Y0siz */
cp->tdx = cio_read(cio, 4); /* XTsiz */
cp->tdy = cio_read(cio, 4); /* YTsiz */
cp->tx0 = cio_read(cio, 4); /* XT0siz */
cp->ty0 = cio_read(cio, 4); /* YT0siz */
if ((image->x0<0)||(image->x1<0)||(image->y0<0)||(image->y1<0)) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"%s: invalid image size (x0:%d, x1:%d, y0:%d, y1:%d)\n",
image->x0,image->x1,image->y0,image->y1);
return;
}
image->numcomps = cio_read(cio, 2); /* Csiz */
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
if (!(image->x1 * image->y1)) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: bad image size (%d x %d)\n",
image->x1, image->y1);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
if (image->numcomps != ((len - 38) / 3)) {
opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: Csiz is %d => space in SIZ only for %d comps.!!!\n",
image->numcomps, ((len - 38) / 3));
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n");
if (image->numcomps < ((len - 38) / 3)) {
len = 38 + 3 * image->numcomps;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting Lsiz to %d => HYPOTHESIS!!!\n",
len);
} else {
image->numcomps = ((len - 38) / 3);
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting Csiz to %d => HYPOTHESIS!!!\n",
image->numcomps);
}
}
/* update components number in the jpwl_exp_comps filed */
cp->exp_comps = image->numcomps;
}
#endif /* USE_JPWL */
image->comps = (opj_image_comp_t*) opj_calloc(image->numcomps, sizeof(opj_image_comp_t));
for (i = 0; i < image->numcomps; i++) {
int tmp, w, h;
tmp = cio_read(cio, 1); /* Ssiz_i */
image->comps[i].prec = (tmp & 0x7f) + 1;
image->comps[i].sgnd = tmp >> 7;
image->comps[i].dx = cio_read(cio, 1); /* XRsiz_i */
image->comps[i].dy = cio_read(cio, 1); /* YRsiz_i */
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters, again */
if (!(image->comps[i].dx * image->comps[i].dy)) {
opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d)\n",
i, i, image->comps[i].dx, image->comps[i].dy);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n");
if (!image->comps[i].dx) {
image->comps[i].dx = 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting XRsiz_%d to %d => HYPOTHESIS!!!\n",
i, image->comps[i].dx);
}
if (!image->comps[i].dy) {
image->comps[i].dy = 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting YRsiz_%d to %d => HYPOTHESIS!!!\n",
i, image->comps[i].dy);
}
}
}
#endif /* USE_JPWL */
/* TODO: unused ? */
w = int_ceildiv(image->x1 - image->x0, image->comps[i].dx);
h = int_ceildiv(image->y1 - image->y0, image->comps[i].dy);
image->comps[i].resno_decoded = 0; /* number of resolution decoded */
image->comps[i].factor = cp->reduce; /* reducing factor per component */
}
cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx);
cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy);
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
if ((cp->tw < 1) || (cp->th < 1) || (cp->tw > cp->max_tiles) || (cp->th > cp->max_tiles)) {
opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad number of tiles (%d x %d)\n",
cp->tw, cp->th);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n");
if (cp->tw < 1) {
cp->tw= 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting %d tiles in x => HYPOTHESIS!!!\n",
cp->tw);
}
if (cp->tw > cp->max_tiles) {
cp->tw= 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- too large x, increase expectance of %d\n"
"- setting %d tiles in x => HYPOTHESIS!!!\n",
cp->max_tiles, cp->tw);
}
if (cp->th < 1) {
cp->th= 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting %d tiles in y => HYPOTHESIS!!!\n",
cp->th);
}
if (cp->th > cp->max_tiles) {
cp->th= 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- too large y, increase expectance of %d to continue\n",
"- setting %d tiles in y => HYPOTHESIS!!!\n",
cp->max_tiles, cp->th);
}
}
}
#endif /* USE_JPWL */
cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t));
cp->tileno = (int*) opj_malloc(cp->tw * cp->th * sizeof(int));
cp->tileno_size = 0;
#ifdef USE_JPWL
if (j2k->cp->correct) {
if (!cp->tcps) {
opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: could not alloc tcps field of cp\n");
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
}
#endif /* USE_JPWL */
for (i = 0; i < cp->tw * cp->th; i++) {
cp->tcps[i].POC = 0;
cp->tcps[i].numpocs = 0;
cp->tcps[i].first = 1;
}
/* Initialization for PPM marker */
cp->ppm = 0;
cp->ppm_data = NULL;
cp->ppm_data_first = NULL;
cp->ppm_previous = 0;
cp->ppm_store = 0;
j2k->default_tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t));
for (i = 0; i < cp->tw * cp->th; i++) {
cp->tcps[i].tccps = (opj_tccp_t*) opj_malloc(image->numcomps * sizeof(opj_tccp_t));
}
j2k->tile_data = (unsigned char**) opj_calloc(cp->tw * cp->th, sizeof(unsigned char*));
j2k->tile_len = (int*) opj_calloc(cp->tw * cp->th, sizeof(int));
j2k->state = J2K_STATE_MH;
/* Index */
if (j2k->cstr_info) {
opj_codestream_info_t *cstr_info = j2k->cstr_info;
cstr_info->image_w = image->x1 - image->x0;
cstr_info->image_h = image->y1 - image->y0;
cstr_info->numcomps = image->numcomps;
cstr_info->tw = cp->tw;
cstr_info->th = cp->th;
cstr_info->tile_x = cp->tdx;
cstr_info->tile_y = cp->tdy;
cstr_info->tile_Ox = cp->tx0;
cstr_info->tile_Oy = cp->ty0;
cstr_info->tile = (opj_tile_info_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tile_info_t));
}
}
static void j2k_write_com(opj_j2k_t *j2k) {
unsigned int i;
int lenp, len;
if(j2k->cp->comment) {
opj_cio_t *cio = j2k->cio;
char *comment = j2k->cp->comment;
cio_write(cio, J2K_MS_COM, 2);
lenp = cio_tell(cio);
cio_skip(cio, 2);
cio_write(cio, 1, 2); /* General use (IS 8859-15:1999 (Latin) values) */
for (i = 0; i < strlen(comment); i++) {
cio_write(cio, comment[i], 1);
}
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2);
cio_seek(cio, lenp + len);
}
}
static void j2k_read_com(opj_j2k_t *j2k) {
int len;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2);
cio_skip(cio, len - 2);
}
static void j2k_write_cox(opj_j2k_t *j2k, int compno) {
int i;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
opj_tccp_t *tccp = &tcp->tccps[compno];
opj_cio_t *cio = j2k->cio;
cio_write(cio, tccp->numresolutions - 1, 1); /* SPcox (D) */
cio_write(cio, tccp->cblkw - 2, 1); /* SPcox (E) */
cio_write(cio, tccp->cblkh - 2, 1); /* SPcox (F) */
cio_write(cio, tccp->cblksty, 1); /* SPcox (G) */
cio_write(cio, tccp->qmfbid, 1); /* SPcox (H) */
if (tccp->csty & J2K_CCP_CSTY_PRT) {
for (i = 0; i < tccp->numresolutions; i++) {
cio_write(cio, tccp->prcw[i] + (tccp->prch[i] << 4), 1); /* SPcox (I_i) */
}
}
}
static void j2k_read_cox(opj_j2k_t *j2k, int compno) {
int i;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_tccp_t *tccp = &tcp->tccps[compno];
opj_cio_t *cio = j2k->cio;
tccp->numresolutions = cio_read(cio, 1) + 1; /* SPcox (D) */
// If user wants to remove more resolutions than the codestream contains, return error
if (cp->reduce >= tccp->numresolutions) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "Error decoding component %d.\nThe number of resolutions to remove is higher than the number "
"of resolutions of this component\nModify the cp_reduce parameter.\n\n", compno);
j2k->state |= J2K_STATE_ERR;
}
tccp->cblkw = cio_read(cio, 1) + 2; /* SPcox (E) */
tccp->cblkh = cio_read(cio, 1) + 2; /* SPcox (F) */
tccp->cblksty = cio_read(cio, 1); /* SPcox (G) */
tccp->qmfbid = cio_read(cio, 1); /* SPcox (H) */
if (tccp->csty & J2K_CP_CSTY_PRT) {
for (i = 0; i < tccp->numresolutions; i++) {
int tmp = cio_read(cio, 1); /* SPcox (I_i) */
tccp->prcw[i] = tmp & 0xf;
tccp->prch[i] = tmp >> 4;
}
}
/* INDEX >> */
if(j2k->cstr_info && compno == 0) {
for (i = 0; i < tccp->numresolutions; i++) {
if (tccp->csty & J2K_CP_CSTY_PRT) {
j2k->cstr_info->tile[j2k->curtileno].pdx[i] = tccp->prcw[i];
j2k->cstr_info->tile[j2k->curtileno].pdy[i] = tccp->prch[i];
}
else {
j2k->cstr_info->tile[j2k->curtileno].pdx[i] = 15;
j2k->cstr_info->tile[j2k->curtileno].pdx[i] = 15;
}
}
}
/* << INDEX */
}
static void j2k_write_cod(opj_j2k_t *j2k) {
opj_cp_t *cp = NULL;
opj_tcp_t *tcp = NULL;
int lenp, len;
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_COD, 2); /* COD */
lenp = cio_tell(cio);
cio_skip(cio, 2);
cp = j2k->cp;
tcp = &cp->tcps[j2k->curtileno];
cio_write(cio, tcp->csty, 1); /* Scod */
cio_write(cio, tcp->prg, 1); /* SGcod (A) */
cio_write(cio, tcp->numlayers, 2); /* SGcod (B) */
cio_write(cio, tcp->mct, 1); /* SGcod (C) */
j2k_write_cox(j2k, 0);
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lcod */
cio_seek(cio, lenp + len);
}
static void j2k_read_cod(opj_j2k_t *j2k) {
int len, i, pos;
opj_cio_t *cio = j2k->cio;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_image_t *image = j2k->image;
len = cio_read(cio, 2); /* Lcod */
tcp->csty = cio_read(cio, 1); /* Scod */
tcp->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* SGcod (A) */
tcp->numlayers = cio_read(cio, 2); /* SGcod (B) */
tcp->mct = cio_read(cio, 1); /* SGcod (C) */
pos = cio_tell(cio);
for (i = 0; i < image->numcomps; i++) {
tcp->tccps[i].csty = tcp->csty & J2K_CP_CSTY_PRT;
cio_seek(cio, pos);
j2k_read_cox(j2k, i);
}
/* Index */
if (j2k->cstr_info) {
opj_codestream_info_t *cstr_info = j2k->cstr_info;
cstr_info->prog = tcp->prg;
cstr_info->numlayers = tcp->numlayers;
cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int));
for (i = 0; i < image->numcomps; i++) {
cstr_info->numdecompos[i] = tcp->tccps[i].numresolutions - 1;
}
}
}
static void j2k_write_coc(opj_j2k_t *j2k, int compno) {
int lenp, len;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
opj_image_t *image = j2k->image;
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_COC, 2); /* COC */
lenp = cio_tell(cio);
cio_skip(cio, 2);
cio_write(cio, compno, image->numcomps <= 256 ? 1 : 2); /* Ccoc */
cio_write(cio, tcp->tccps[compno].csty, 1); /* Scoc */
j2k_write_cox(j2k, compno);
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lcoc */
cio_seek(cio, lenp + len);
}
static void j2k_read_coc(opj_j2k_t *j2k) {
int len, compno;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_image_t *image = j2k->image;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Lcoc */
compno = cio_read(cio, image->numcomps <= 256 ? 1 : 2); /* Ccoc */
tcp->tccps[compno].csty = cio_read(cio, 1); /* Scoc */
j2k_read_cox(j2k, compno);
}
static void j2k_write_qcx(opj_j2k_t *j2k, int compno) {
int bandno, numbands;
int expn, mant;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
opj_tccp_t *tccp = &tcp->tccps[compno];
opj_cio_t *cio = j2k->cio;
cio_write(cio, tccp->qntsty + (tccp->numgbits << 5), 1); /* Sqcx */
numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2;
for (bandno = 0; bandno < numbands; bandno++) {
expn = tccp->stepsizes[bandno].expn;
mant = tccp->stepsizes[bandno].mant;
if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
cio_write(cio, expn << 3, 1); /* SPqcx_i */
} else {
cio_write(cio, (expn << 11) + mant, 2); /* SPqcx_i */
}
}
}
static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len) {
int tmp;
int bandno, numbands;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_tccp_t *tccp = &tcp->tccps[compno];
opj_cio_t *cio = j2k->cio;
tmp = cio_read(cio, 1); /* Sqcx */
tccp->qntsty = tmp & 0x1f;
tccp->numgbits = tmp >> 5;
numbands = (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ?
1 : ((tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ? len - 1 : (len - 1) / 2);
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* if JPWL is on, we check whether there are too many subbands */
if ((numbands < 0) || (numbands >= J2K_MAXBANDS)) {
opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad number of subbands in Sqcx (%d)\n",
numbands);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
numbands = 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n"
"- setting number of bands to %d => HYPOTHESIS!!!\n",
numbands);
};
};
#endif /* USE_JPWL */
for (bandno = 0; bandno < numbands; bandno++) {
int expn, mant;
if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
expn = cio_read(cio, 1) >> 3; /* SPqcx_i */
mant = 0;
} else {
tmp = cio_read(cio, 2); /* SPqcx_i */
expn = tmp >> 11;
mant = tmp & 0x7ff;
}
tccp->stepsizes[bandno].expn = expn;
tccp->stepsizes[bandno].mant = mant;
}
/* Add Antonin : if scalar_derived -> compute other stepsizes */
if (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) {
for (bandno = 1; bandno < J2K_MAXBANDS; bandno++) {
tccp->stepsizes[bandno].expn =
((tccp->stepsizes[0].expn) - ((bandno - 1) / 3) > 0) ?
(tccp->stepsizes[0].expn) - ((bandno - 1) / 3) : 0;
tccp->stepsizes[bandno].mant = tccp->stepsizes[0].mant;
}
}
/* ddA */
}
static void j2k_write_qcd(opj_j2k_t *j2k) {
int lenp, len;
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_QCD, 2); /* QCD */
lenp = cio_tell(cio);
cio_skip(cio, 2);
j2k_write_qcx(j2k, 0);
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lqcd */
cio_seek(cio, lenp + len);
}
static void j2k_read_qcd(opj_j2k_t *j2k) {
int len, i, pos;
opj_cio_t *cio = j2k->cio;
opj_image_t *image = j2k->image;
len = cio_read(cio, 2); /* Lqcd */
pos = cio_tell(cio);
for (i = 0; i < image->numcomps; i++) {
cio_seek(cio, pos);
j2k_read_qcx(j2k, i, len - 2);
}
}
static void j2k_write_qcc(opj_j2k_t *j2k, int compno) {
int lenp, len;
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_QCC, 2); /* QCC */
lenp = cio_tell(cio);
cio_skip(cio, 2);
cio_write(cio, compno, j2k->image->numcomps <= 256 ? 1 : 2); /* Cqcc */
j2k_write_qcx(j2k, compno);
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lqcc */
cio_seek(cio, lenp + len);
}
static void j2k_read_qcc(opj_j2k_t *j2k) {
int len, compno;
int numcomp = j2k->image->numcomps;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Lqcc */
compno = cio_read(cio, numcomp <= 256 ? 1 : 2); /* Cqcc */
#ifdef USE_JPWL
if (j2k->cp->correct) {
static int backup_compno = 0;
/* compno is negative or larger than the number of components!!! */
if ((compno < 0) || (compno >= numcomp)) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: bad component number in QCC (%d out of a maximum of %d)\n",
compno, numcomp);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
compno = backup_compno % numcomp;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting component number to %d\n",
compno);
}
/* keep your private count of tiles */
backup_compno++;
};
#endif /* USE_JPWL */
j2k_read_qcx(j2k, compno, len - 2 - (numcomp <= 256 ? 1 : 2));
}
static void j2k_write_poc(opj_j2k_t *j2k) {
int len, numpchgs, i;
int numcomps = j2k->image->numcomps;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = &cp->tcps[j2k->curtileno];
opj_tccp_t *tccp = &tcp->tccps[0];
opj_cio_t *cio = j2k->cio;
numpchgs = 1 + tcp->numpocs;
cio_write(cio, J2K_MS_POC, 2); /* POC */
len = 2 + (5 + 2 * (numcomps <= 256 ? 1 : 2)) * numpchgs;
cio_write(cio, len, 2); /* Lpoc */
for (i = 0; i < numpchgs; i++) {
opj_poc_t *poc = &tcp->pocs[i];
cio_write(cio, poc->resno0, 1); /* RSpoc_i */
cio_write(cio, poc->compno0, (numcomps <= 256 ? 1 : 2)); /* CSpoc_i */
cio_write(cio, poc->layno1, 2); /* LYEpoc_i */
poc->layno1 = int_min(poc->layno1, tcp->numlayers);
cio_write(cio, poc->resno1, 1); /* REpoc_i */
poc->resno1 = int_min(poc->resno1, tccp->numresolutions);
cio_write(cio, poc->compno1, (numcomps <= 256 ? 1 : 2)); /* CEpoc_i */
poc->compno1 = int_min(poc->compno1, numcomps);
cio_write(cio, poc->prg, 1); /* Ppoc_i */
}
}
static void j2k_read_poc(opj_j2k_t *j2k) {
int len, numpchgs, i, old_poc;
int numcomps = j2k->image->numcomps;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_cio_t *cio = j2k->cio;
old_poc = tcp->POC ? tcp->numpocs + 1 : 0;
tcp->POC = 1;
len = cio_read(cio, 2); /* Lpoc */
numpchgs = (len - 2) / (5 + 2 * (numcomps <= 256 ? 1 : 2));
for (i = old_poc; i < numpchgs + old_poc; i++) {
opj_poc_t *poc;
poc = &tcp->pocs[i];
poc->resno0 = cio_read(cio, 1); /* RSpoc_i */
poc->compno0 = cio_read(cio, numcomps <= 256 ? 1 : 2); /* CSpoc_i */
poc->layno1 = cio_read(cio, 2); /* LYEpoc_i */
poc->resno1 = cio_read(cio, 1); /* REpoc_i */
poc->compno1 = int_min(
cio_read(cio, numcomps <= 256 ? 1 : 2), (unsigned int) numcomps); /* CEpoc_i */
poc->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* Ppoc_i */
}
tcp->numpocs = numpchgs + old_poc - 1;
}
static void j2k_read_crg(opj_j2k_t *j2k) {
int len, i, Xcrg_i, Ycrg_i;
opj_cio_t *cio = j2k->cio;
int numcomps = j2k->image->numcomps;
len = cio_read(cio, 2); /* Lcrg */
for (i = 0; i < numcomps; i++) {
Xcrg_i = cio_read(cio, 2); /* Xcrg_i */
Ycrg_i = cio_read(cio, 2); /* Ycrg_i */
}
}
static void j2k_read_tlm(opj_j2k_t *j2k) {
int len, Ztlm, Stlm, ST, SP, tile_tlm, i;
long int Ttlm_i, Ptlm_i;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Ltlm */
Ztlm = cio_read(cio, 1); /* Ztlm */
Stlm = cio_read(cio, 1); /* Stlm */
ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02);
SP = (Stlm >> 6) & 0x01;
tile_tlm = (len - 4) / ((SP + 1) * 2 + ST);
for (i = 0; i < tile_tlm; i++) {
Ttlm_i = cio_read(cio, ST); /* Ttlm_i */
Ptlm_i = cio_read(cio, SP ? 4 : 2); /* Ptlm_i */
}
}
static void j2k_read_plm(opj_j2k_t *j2k) {
int len, i, Zplm, Nplm, add, packet_len = 0;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Lplm */
Zplm = cio_read(cio, 1); /* Zplm */
len -= 3;
while (len > 0) {
Nplm = cio_read(cio, 4); /* Nplm */
len -= 4;
for (i = Nplm; i > 0; i--) {
add = cio_read(cio, 1);
len--;
packet_len = (packet_len << 7) + add; /* Iplm_ij */
if ((add & 0x80) == 0) {
/* New packet */
packet_len = 0;
}
if (len <= 0)
break;
}
}
}
static void j2k_read_plt(opj_j2k_t *j2k) {
int len, i, Zplt, packet_len = 0, add;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Lplt */
Zplt = cio_read(cio, 1); /* Zplt */
for (i = len - 3; i > 0; i--) {
add = cio_read(cio, 1);
packet_len = (packet_len << 7) + add; /* Iplt_i */
if ((add & 0x80) == 0) {
/* New packet */
packet_len = 0;
}
}
}
static void j2k_read_ppm(opj_j2k_t *j2k) {
int len, Z_ppm, i, j;
int N_ppm;
opj_cp_t *cp = j2k->cp;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2);
cp->ppm = 1;
Z_ppm = cio_read(cio, 1); /* Z_ppm */
len -= 3;
while (len > 0) {
if (cp->ppm_previous == 0) {
N_ppm = cio_read(cio, 4); /* N_ppm */
len -= 4;
} else {
N_ppm = cp->ppm_previous;
}
j = cp->ppm_store;
if (Z_ppm == 0) { /* First PPM marker */
cp->ppm_data = (unsigned char *) opj_malloc(N_ppm * sizeof(unsigned char));
cp->ppm_data_first = cp->ppm_data;
cp->ppm_len = N_ppm;
} else { /* NON-first PPM marker */
cp->ppm_data = (unsigned char *) opj_realloc(cp->ppm_data, (N_ppm + cp->ppm_store) * sizeof(unsigned char));
#ifdef USE_JPWL
/* this memory allocation check could be done even in non-JPWL cases */
if (cp->correct) {
if (!cp->ppm_data) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: failed memory allocation during PPM marker parsing (pos. %x)\n",
cio_tell(cio));
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_free(cp->ppm_data);
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
}
#endif
cp->ppm_data_first = cp->ppm_data;
cp->ppm_len = N_ppm + cp->ppm_store;
}
for (i = N_ppm; i > 0; i--) { /* Read packet header */
cp->ppm_data[j] = cio_read(cio, 1);
j++;
len--;
if (len == 0)
break; /* Case of non-finished packet header in present marker but finished in next one */
}
cp->ppm_previous = i - 1;
cp->ppm_store = j;
}
}
static void j2k_read_ppt(opj_j2k_t *j2k) {
int len, Z_ppt, i, j = 0;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = cp->tcps + j2k->curtileno;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2);
Z_ppt = cio_read(cio, 1);
tcp->ppt = 1;
if (Z_ppt == 0) { /* First PPT marker */
tcp->ppt_data = (unsigned char *) opj_malloc((len - 3) * sizeof(unsigned char));
tcp->ppt_data_first = tcp->ppt_data;
tcp->ppt_store = 0;
tcp->ppt_len = len - 3;
} else { /* NON-first PPT marker */
tcp->ppt_data = (unsigned char *) opj_realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char));
tcp->ppt_data_first = tcp->ppt_data;
tcp->ppt_len = len - 3 + tcp->ppt_store;
}
j = tcp->ppt_store;
for (i = len - 3; i > 0; i--) {
tcp->ppt_data[j] = cio_read(cio, 1);
j++;
}
tcp->ppt_store = j;
}
static void j2k_write_tlm(opj_j2k_t *j2k){
int lenp;
opj_cio_t *cio = j2k->cio;
j2k->tlm_start = cio_tell(cio);
cio_write(cio, J2K_MS_TLM, 2);/* TLM */
lenp = 4 + (5*j2k->totnum_tp);
cio_write(cio,lenp,2); /* Ltlm */
cio_write(cio, 0,1); /* Ztlm=0*/
cio_write(cio,80,1); /* Stlm ST=1(8bits-255 tiles max),SP=1(Ptlm=32bits) */
cio_skip(cio,5*j2k->totnum_tp);
}
static void j2k_write_sot(opj_j2k_t *j2k) {
int lenp, len;
opj_cio_t *cio = j2k->cio;
j2k->sot_start = cio_tell(cio);
cio_write(cio, J2K_MS_SOT, 2); /* SOT */
lenp = cio_tell(cio);
cio_skip(cio, 2); /* Lsot (further) */
cio_write(cio, j2k->curtileno, 2); /* Isot */
cio_skip(cio, 4); /* Psot (further in j2k_write_sod) */
cio_write(cio, j2k->cur_tp_num , 1); /* TPsot */
cio_write(cio, j2k->cur_totnum_tp[j2k->curtileno], 1); /* TNsot */
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lsot */
cio_seek(cio, lenp + len);
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(j2k->cstr_info, J2K_MS_SOT, j2k->sot_start, len + 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
static void j2k_read_sot(opj_j2k_t *j2k) {
int len, tileno, totlen, partno, numparts, i;
opj_tcp_t *tcp = NULL;
char status = 0;
opj_cp_t *cp = j2k->cp;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2);
tileno = cio_read(cio, 2);
#ifdef USE_JPWL
if (j2k->cp->correct) {
static int backup_tileno = 0;
/* tileno is negative or larger than the number of tiles!!! */
if ((tileno < 0) || (tileno > (cp->tw * cp->th))) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: bad tile number (%d out of a maximum of %d)\n",
tileno, (cp->tw * cp->th));
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
tileno = backup_tileno;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting tile number to %d\n",
tileno);
}
/* keep your private count of tiles */
backup_tileno++;
};
#endif /* USE_JPWL */
if (cp->tileno_size == 0) {
cp->tileno[cp->tileno_size] = tileno;
cp->tileno_size++;
} else {
i = 0;
while (i < cp->tileno_size && status == 0) {
status = cp->tileno[i] == tileno ? 1 : 0;
i++;
}
if (status == 0) {
cp->tileno[cp->tileno_size] = tileno;
cp->tileno_size++;
}
}
totlen = cio_read(cio, 4);
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
if ((totlen < 0) || (totlen > (cio_numbytesleft(cio) + 8))) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: bad tile byte size (%d bytes against %d bytes left)\n",
totlen, cio_numbytesleft(cio) + 8);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
totlen = 0;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting Psot to %d => assuming it is the last tile\n",
totlen);
}
};
#endif /* USE_JPWL */
if (!totlen)
totlen = cio_numbytesleft(cio) + 8;
partno = cio_read(cio, 1);
numparts = cio_read(cio, 1);
j2k->curtileno = tileno;
j2k->cur_tp_num = partno;
j2k->eot = cio_getbp(cio) - 12 + totlen;
j2k->state = J2K_STATE_TPH;
tcp = &cp->tcps[j2k->curtileno];
/* Index */
if (j2k->cstr_info) {
if (tcp->first) {
if (tileno == 0)
j2k->cstr_info->main_head_end = cio_tell(cio) - 13;
j2k->cstr_info->tile[tileno].tileno = tileno;
j2k->cstr_info->tile[tileno].start_pos = cio_tell(cio) - 12;
j2k->cstr_info->tile[tileno].end_pos = j2k->cstr_info->tile[tileno].start_pos + totlen - 1;
j2k->cstr_info->tile[tileno].num_tps = numparts;
if (numparts)
j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(numparts * sizeof(opj_tp_info_t));
else
j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(10 * sizeof(opj_tp_info_t)); // Fixme (10)
}
else {
j2k->cstr_info->tile[tileno].end_pos += totlen;
}
j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos = cio_tell(cio) - 12;
j2k->cstr_info->tile[tileno].tp[partno].tp_end_pos =
j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos + totlen - 1;
}
if (tcp->first == 1) {
/* Initialization PPT */
opj_tccp_t *tmp = tcp->tccps;
memcpy(tcp, j2k->default_tcp, sizeof(opj_tcp_t));
tcp->ppt = 0;
tcp->ppt_data = NULL;
tcp->ppt_data_first = NULL;
tcp->tccps = tmp;
for (i = 0; i < j2k->image->numcomps; i++) {
tcp->tccps[i] = j2k->default_tcp->tccps[i];
}
cp->tcps[j2k->curtileno].first = 0;
}
}
static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder) {
int l, layno;
int totlen;
opj_tcp_t *tcp = NULL;
opj_codestream_info_t *cstr_info = NULL;
opj_tcd_t *tcd = (opj_tcd_t*)tile_coder; /* cast is needed because of conflicts in header inclusions */
opj_cp_t *cp = j2k->cp;
opj_cio_t *cio = j2k->cio;
tcd->tp_num = j2k->tp_num ;
tcd->cur_tp_num = j2k->cur_tp_num;
cio_write(cio, J2K_MS_SOD, 2);
if (j2k->curtileno == 0) {
j2k->sod_start = cio_tell(cio) + j2k->pos_correction;
}
/* INDEX >> */
cstr_info = j2k->cstr_info;
if (cstr_info) {
if (!j2k->cur_tp_num ) {
cstr_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1;
j2k->cstr_info->tile[j2k->curtileno].tileno = j2k->curtileno;
}
else{
if(cstr_info->tile[j2k->curtileno].packet[cstr_info->packno - 1].end_pos < cio_tell(cio))
cstr_info->tile[j2k->curtileno].packet[cstr_info->packno].start_pos = cio_tell(cio);
}
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(j2k->cstr_info, J2K_MS_SOD, j2k->sod_start, 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
/* << INDEX */
tcp = &cp->tcps[j2k->curtileno];
for (layno = 0; layno < tcp->numlayers; layno++) {
if (tcp->rates[layno]>(j2k->sod_start / (cp->th * cp->tw))) {
tcp->rates[layno]-=(j2k->sod_start / (cp->th * cp->tw));
} else if (tcp->rates[layno]) {
tcp->rates[layno]=1;
}
}
if(j2k->cur_tp_num == 0){
tcd->tcd_image->tiles->packno = 0;
if(cstr_info)
cstr_info->packno = 0;
}
l = tcd_encode_tile(tcd, j2k->curtileno, cio_getbp(cio), cio_numbytesleft(cio) - 2, cstr_info);
/* Writing Psot in SOT marker */
totlen = cio_tell(cio) + l - j2k->sot_start;
cio_seek(cio, j2k->sot_start + 6);
cio_write(cio, totlen, 4);
cio_seek(cio, j2k->sot_start + totlen);
/* Writing Ttlm and Ptlm in TLM marker */
if(cp->cinema){
cio_seek(cio, j2k->tlm_start + 6 + (5*j2k->cur_tp_num));
cio_write(cio, j2k->curtileno, 1);
cio_write(cio, totlen, 4);
}
cio_seek(cio, j2k->sot_start + totlen);
}
static void j2k_read_sod(opj_j2k_t *j2k) {
int len, truncate = 0, i;
unsigned char *data = NULL, *data_ptr = NULL;
opj_cio_t *cio = j2k->cio;
int curtileno = j2k->curtileno;
/* Index */
if (j2k->cstr_info) {
j2k->cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_header =
cio_tell(cio) + j2k->pos_correction - 1;
if (j2k->cur_tp_num == 0)
j2k->cstr_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1;
j2k->cstr_info->packno = 0;
}
len = int_min(j2k->eot - cio_getbp(cio), cio_numbytesleft(cio) + 1);
if (len == cio_numbytesleft(cio) + 1) {
truncate = 1; /* Case of a truncate codestream */
}
data = j2k->tile_data[curtileno];
data = (unsigned char*) opj_realloc(data, (j2k->tile_len[curtileno] + len) * sizeof(unsigned char));
data_ptr = data + j2k->tile_len[curtileno];
for (i = 0; i < len; i++) {
data_ptr[i] = cio_read(cio, 1);
}
j2k->tile_len[curtileno] += len;
j2k->tile_data[curtileno] = data;
if (!truncate) {
j2k->state = J2K_STATE_TPHSOT;
} else {
j2k->state = J2K_STATE_NEOC; /* RAJOUTE !! */
}
j2k->cur_tp_num++;
}
static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno) {
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = &cp->tcps[tileno];
opj_cio_t *cio = j2k->cio;
int numcomps = j2k->image->numcomps;
cio_write(cio, J2K_MS_RGN, 2); /* RGN */
cio_write(cio, numcomps <= 256 ? 5 : 6, 2); /* Lrgn */
cio_write(cio, compno, numcomps <= 256 ? 1 : 2); /* Crgn */
cio_write(cio, 0, 1); /* Srgn */
cio_write(cio, tcp->tccps[compno].roishift, 1); /* SPrgn */
}
static void j2k_read_rgn(opj_j2k_t *j2k) {
int len, compno, roisty;
opj_cp_t *cp = j2k->cp;
opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp;
opj_cio_t *cio = j2k->cio;
int numcomps = j2k->image->numcomps;
len = cio_read(cio, 2); /* Lrgn */
compno = cio_read(cio, numcomps <= 256 ? 1 : 2); /* Crgn */
roisty = cio_read(cio, 1); /* Srgn */
#ifdef USE_JPWL
if (j2k->cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
if (compno >= numcomps) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: bad component number in RGN (%d when there are only %d)\n",
compno, numcomps);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
};
#endif /* USE_JPWL */
tcp->tccps[compno].roishift = cio_read(cio, 1); /* SPrgn */
}
static void j2k_write_eoc(opj_j2k_t *j2k) {
opj_cio_t *cio = j2k->cio;
/* opj_event_msg(j2k->cinfo, "%.8x: EOC\n", cio_tell(cio) + j2k->pos_correction); */
cio_write(cio, J2K_MS_EOC, 2);
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(j2k->cstr_info, J2K_MS_EOC, cio_tell(cio) - 2, 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
static void j2k_read_eoc(opj_j2k_t *j2k) {
int i, tileno;
bool success;
/* if packets should be decoded */
if (j2k->cp->limit_decoding != DECODE_ALL_BUT_PACKETS) {
opj_tcd_t *tcd = tcd_create(j2k->cinfo);
tcd_malloc_decode(tcd, j2k->image, j2k->cp);
for (i = 0; i < j2k->cp->tileno_size; i++) {
tcd_malloc_decode_tile(tcd, j2k->image, j2k->cp, i, j2k->cstr_info);
tileno = j2k->cp->tileno[i];
success = tcd_decode_tile(tcd, j2k->tile_data[tileno], j2k->tile_len[tileno], tileno, j2k->cstr_info);
opj_free(j2k->tile_data[tileno]);
j2k->tile_data[tileno] = NULL;
tcd_free_decode_tile(tcd, i);
if (success == false) {
j2k->state |= J2K_STATE_ERR;
break;
}
}
tcd_free_decode(tcd);
tcd_destroy(tcd);
}
/* if packets should not be decoded */
else {
for (i = 0; i < j2k->cp->tileno_size; i++) {
tileno = j2k->cp->tileno[i];
opj_free(j2k->tile_data[tileno]);
j2k->tile_data[tileno] = NULL;
}
}
if (j2k->state & J2K_STATE_ERR)
j2k->state = J2K_STATE_MT + J2K_STATE_ERR;
else
j2k->state = J2K_STATE_MT;
}
typedef struct opj_dec_mstabent {
/** marker value */
int id;
/** value of the state when the marker can appear */
int states;
/** action linked to the marker */
void (*handler) (opj_j2k_t *j2k);
} opj_dec_mstabent_t;
opj_dec_mstabent_t j2k_dec_mstab[] = {
{J2K_MS_SOC, J2K_STATE_MHSOC, j2k_read_soc},
{J2K_MS_SOT, J2K_STATE_MH | J2K_STATE_TPHSOT, j2k_read_sot},
{J2K_MS_SOD, J2K_STATE_TPH, j2k_read_sod},
{J2K_MS_EOC, J2K_STATE_TPHSOT, j2k_read_eoc},
{J2K_MS_SIZ, J2K_STATE_MHSIZ, j2k_read_siz},
{J2K_MS_COD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_cod},
{J2K_MS_COC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_coc},
{J2K_MS_RGN, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_rgn},
{J2K_MS_QCD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcd},
{J2K_MS_QCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcc},
{J2K_MS_POC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_poc},
{J2K_MS_TLM, J2K_STATE_MH, j2k_read_tlm},
{J2K_MS_PLM, J2K_STATE_MH, j2k_read_plm},
{J2K_MS_PLT, J2K_STATE_TPH, j2k_read_plt},
{J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm},
{J2K_MS_PPT, J2K_STATE_TPH, j2k_read_ppt},
{J2K_MS_SOP, 0, 0},
{J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg},
{J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com},
#ifdef USE_JPWL
{J2K_MS_EPC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epc},
{J2K_MS_EPB, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epb},
{J2K_MS_ESD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_esd},
{J2K_MS_RED, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_red},
#endif /* USE_JPWL */
#ifdef USE_JPSEC
{J2K_MS_SEC, J2K_STATE_MH, j2k_read_sec},
{J2K_MS_INSEC, 0, j2k_read_insec},
#endif /* USE_JPSEC */
{0, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_unk}
};
static void j2k_read_unk(opj_j2k_t *j2k) {
opj_event_msg(j2k->cinfo, EVT_WARNING, "Unknown marker\n");
#ifdef USE_JPWL
if (j2k->cp->correct) {
int m = 0, id, i;
int min_id = 0, min_dist = 17, cur_dist = 0, tmp_id;
cio_seek(j2k->cio, cio_tell(j2k->cio) - 2);
id = cio_read(j2k->cio, 2);
opj_event_msg(j2k->cinfo, EVT_ERROR,
"JPWL: really don't know this marker %x\n",
id);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"- possible synch loss due to uncorrectable codestream errors => giving up\n");
return;
}
/* OK, activate this at your own risk!!! */
/* we look for the marker at the minimum hamming distance from this */
while (j2k_dec_mstab[m].id) {
/* 1's where they differ */
tmp_id = j2k_dec_mstab[m].id ^ id;
/* compute the hamming distance between our id and the current */
cur_dist = 0;
for (i = 0; i < 16; i++) {
if ((tmp_id >> i) & 0x0001) {
cur_dist++;
}
}
/* if current distance is smaller, set the minimum */
if (cur_dist < min_dist) {
min_dist = cur_dist;
min_id = j2k_dec_mstab[m].id;
}
/* jump to the next marker */
m++;
}
/* do we substitute the marker? */
if (min_dist < JPWL_MAXIMUM_HAMMING) {
opj_event_msg(j2k->cinfo, EVT_ERROR,
"- marker %x is at distance %d from the read %x\n",
min_id, min_dist, id);
opj_event_msg(j2k->cinfo, EVT_ERROR,
"- trying to substitute in place and crossing fingers!\n");
cio_seek(j2k->cio, cio_tell(j2k->cio) - 2);
cio_write(j2k->cio, min_id, 2);
/* rewind */
cio_seek(j2k->cio, cio_tell(j2k->cio) - 2);
}
};
#endif /* USE_JPWL */
}
/**
Read the lookup table containing all the marker, status and action
@param id Marker value
*/
static opj_dec_mstabent_t *j2k_dec_mstab_lookup(int id) {
opj_dec_mstabent_t *e;
for (e = j2k_dec_mstab; e->id != 0; e++) {
if (e->id == id) {
break;
}
}
return e;
}
/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo) {
opj_j2k_t *j2k = (opj_j2k_t*) opj_calloc(1, sizeof(opj_j2k_t));
if(!j2k)
return NULL;
j2k->default_tcp = (opj_tcp_t*) opj_calloc(1, sizeof(opj_tcp_t));
if(!j2k->default_tcp) {
opj_free(j2k);
return NULL;
}
j2k->cinfo = cinfo;
j2k->tile_data = NULL;
return j2k;
}
void j2k_destroy_decompress(opj_j2k_t *j2k) {
int i = 0;
if(j2k->tile_len != NULL) {
opj_free(j2k->tile_len);
}
if(j2k->tile_data != NULL) {
opj_free(j2k->tile_data);
}
if(j2k->default_tcp != NULL) {
opj_tcp_t *default_tcp = j2k->default_tcp;
if(default_tcp->ppt_data_first != NULL) {
opj_free(default_tcp->ppt_data_first);
}
if(j2k->default_tcp->tccps != NULL) {
opj_free(j2k->default_tcp->tccps);
}
opj_free(j2k->default_tcp);
}
if(j2k->cp != NULL) {
opj_cp_t *cp = j2k->cp;
if(cp->tcps != NULL) {
for(i = 0; i < cp->tw * cp->th; i++) {
if(cp->tcps[i].ppt_data_first != NULL) {
opj_free(cp->tcps[i].ppt_data_first);
}
if(cp->tcps[i].tccps != NULL) {
opj_free(cp->tcps[i].tccps);
}
}
opj_free(cp->tcps);
}
if(cp->ppm_data_first != NULL) {
opj_free(cp->ppm_data_first);
}
if(cp->tileno != NULL) {
opj_free(cp->tileno);
}
if(cp->comment != NULL) {
opj_free(cp->comment);
}
opj_free(cp);
}
opj_free(j2k);
}
void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) {
if(j2k && parameters) {
/* create and initialize the coding parameters structure */
opj_cp_t *cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t));
cp->reduce = parameters->cp_reduce;
cp->layer = parameters->cp_layer;
cp->limit_decoding = parameters->cp_limit_decoding;
#ifdef USE_JPWL
cp->correct = parameters->jpwl_correct;
cp->exp_comps = parameters->jpwl_exp_comps;
cp->max_tiles = parameters->jpwl_max_tiles;
#endif /* USE_JPWL */
/* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */
j2k->cp = cp;
}
}
opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) {
opj_image_t *image = NULL;
opj_common_ptr cinfo = j2k->cinfo;
j2k->cio = cio;
j2k->cstr_info = cstr_info;
if (cstr_info)
memset(cstr_info, 0, sizeof(opj_codestream_info_t));
/* create an empty image */
image = opj_image_create0();
j2k->image = image;
j2k->state = J2K_STATE_MHSOC;
for (;;) {
opj_dec_mstabent_t *e;
int id = cio_read(cio, 2);
#ifdef USE_JPWL
/* we try to honor JPWL correction power */
if (j2k->cp->correct) {
int orig_pos = cio_tell(cio);
bool status;
/* call the corrector */
status = jpwl_correct(j2k);
/* go back to where you were */
cio_seek(cio, orig_pos - 2);
/* re-read the marker */
id = cio_read(cio, 2);
/* check whether it begins with ff */
if (id >> 8 != 0xff) {
opj_event_msg(cinfo, EVT_ERROR,
"JPWL: possible bad marker %x at %d\n",
id, cio_tell(cio) - 2);
if (!JPWL_ASSUME) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "JPWL: giving up\n");
return 0;
}
/* we try to correct */
id = id | 0xff00;
cio_seek(cio, cio_tell(cio) - 2);
cio_write(cio, id, 2);
opj_event_msg(cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting marker to %x\n",
id);
}
}
#endif /* USE_JPWL */
if (id >> 8 != 0xff) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
return 0;
}
e = j2k_dec_mstab_lookup(id);
// Check if the marker is known
if (!(j2k->state & e->states)) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id);
return 0;
}
// Check if the decoding is limited to the main header
if (e->id == J2K_MS_SOT && j2k->cp->limit_decoding == LIMIT_TO_MAIN_HEADER) {
opj_event_msg(cinfo, EVT_INFO, "Main Header decoded.\n");
return image;
}
if (e->handler) {
(*e->handler)(j2k);
}
if (j2k->state & J2K_STATE_ERR)
return NULL;
if (j2k->state == J2K_STATE_MT) {
break;
}
if (j2k->state == J2K_STATE_NEOC) {
break;
}
}
if (j2k->state == J2K_STATE_NEOC) {
j2k_read_eoc(j2k);
}
if (j2k->state != J2K_STATE_MT) {
opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n");
}
return image;
}
/*
* Read a JPT-stream and decode file
*
*/
opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) {
opj_image_t *image = NULL;
opj_jpt_msg_header_t header;
int position;
opj_common_ptr cinfo = j2k->cinfo;
j2k->cio = cio;
/* create an empty image */
image = opj_image_create0();
j2k->image = image;
j2k->state = J2K_STATE_MHSOC;
/* Initialize the header */
jpt_init_msg_header(&header);
/* Read the first header of the message */
jpt_read_msg_header(cinfo, cio, &header);
position = cio_tell(cio);
if (header.Class_Id != 6) { /* 6 : Main header data-bin message */
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Main header first [class_Id %d] !\n", header.Class_Id);
return 0;
}
for (;;) {
opj_dec_mstabent_t *e = NULL;
int id;
if (!cio_numbytesleft(cio)) {
j2k_read_eoc(j2k);
return image;
}
/* data-bin read -> need to read a new header */
if ((unsigned int) (cio_tell(cio) - position) == header.Msg_length) {
jpt_read_msg_header(cinfo, cio, &header);
position = cio_tell(cio);
if (header.Class_Id != 4) { /* 4 : Tile data-bin message */
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Tile info !\n");
return 0;
}
}
id = cio_read(cio, 2);
if (id >> 8 != 0xff) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id);
return 0;
}
e = j2k_dec_mstab_lookup(id);
if (!(j2k->state & e->states)) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id);
return 0;
}
if (e->handler) {
(*e->handler)(j2k);
}
if (j2k->state == J2K_STATE_MT) {
break;
}
if (j2k->state == J2K_STATE_NEOC) {
break;
}
}
if (j2k->state == J2K_STATE_NEOC) {
j2k_read_eoc(j2k);
}
if (j2k->state != J2K_STATE_MT) {
opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n");
}
return image;
}
/* ----------------------------------------------------------------------- */
/* J2K encoder interface */
/* ----------------------------------------------------------------------- */
opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo) {
opj_j2k_t *j2k = (opj_j2k_t*) opj_calloc(1, sizeof(opj_j2k_t));
if(j2k) {
j2k->cinfo = cinfo;
}
return j2k;
}
void j2k_destroy_compress(opj_j2k_t *j2k) {
int tileno;
if(!j2k) return;
if(j2k->cp != NULL) {
opj_cp_t *cp = j2k->cp;
if(cp->comment) {
opj_free(cp->comment);
}
if(cp->matrice) {
opj_free(cp->matrice);
}
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
opj_free(cp->tcps[tileno].tccps);
}
opj_free(cp->tcps);
opj_free(cp);
}
opj_free(j2k);
}
void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image) {
int i, j, tileno, numpocs_tile;
opj_cp_t *cp = NULL;
if(!j2k || !parameters || ! image) {
return;
}
/* create and initialize the coding parameters structure */
cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t));
/* keep a link to cp so that we can destroy it later in j2k_destroy_compress */
j2k->cp = cp;
/* set default values for cp */
cp->tw = 1;
cp->th = 1;
/*
copy user encoding parameters
*/
cp->cinema = parameters->cp_cinema;
cp->max_comp_size = parameters->max_comp_size;
cp->rsiz = parameters->cp_rsiz;
cp->disto_alloc = parameters->cp_disto_alloc;
cp->fixed_alloc = parameters->cp_fixed_alloc;
cp->fixed_quality = parameters->cp_fixed_quality;
/* mod fixed_quality */
if(parameters->cp_matrice) {
size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(int);
cp->matrice = (int *) opj_malloc(array_size);
memcpy(cp->matrice, parameters->cp_matrice, array_size);
}
/* tiles */
cp->tdx = parameters->cp_tdx;
cp->tdy = parameters->cp_tdy;
/* tile offset */
cp->tx0 = parameters->cp_tx0;
cp->ty0 = parameters->cp_ty0;
/* comment string */
if(parameters->cp_comment) {
cp->comment = (char*)opj_malloc(strlen(parameters->cp_comment) + 1);
if(cp->comment) {
strcpy(cp->comment, parameters->cp_comment);
}
}
/*
calculate other encoding parameters
*/
if (parameters->tile_size_on) {
cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx);
cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy);
} else {
cp->tdx = image->x1 - cp->tx0;
cp->tdy = image->y1 - cp->ty0;
}
if(parameters->tp_on){
cp->tp_flag = parameters->tp_flag;
cp->tp_on = 1;
}
cp->img_size = 0;
for(i=0;i<image->numcomps ;i++){
cp->img_size += (image->comps[i].w *image->comps[i].h * image->comps[i].prec);
}
#ifdef USE_JPWL
/*
calculate JPWL encoding parameters
*/
if (parameters->jpwl_epc_on) {
int i;
/* set JPWL on */
cp->epc_on = true;
cp->info_on = false; /* no informative technique */
/* set EPB on */
if ((parameters->jpwl_hprot_MH > 0) || (parameters->jpwl_hprot_TPH[0] > 0)) {
cp->epb_on = true;
cp->hprot_MH = parameters->jpwl_hprot_MH;
for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
cp->hprot_TPH_tileno[i] = parameters->jpwl_hprot_TPH_tileno[i];
cp->hprot_TPH[i] = parameters->jpwl_hprot_TPH[i];
}
/* if tile specs are not specified, copy MH specs */
if (cp->hprot_TPH[0] == -1) {
cp->hprot_TPH_tileno[0] = 0;
cp->hprot_TPH[0] = parameters->jpwl_hprot_MH;
}
for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) {
cp->pprot_tileno[i] = parameters->jpwl_pprot_tileno[i];
cp->pprot_packno[i] = parameters->jpwl_pprot_packno[i];
cp->pprot[i] = parameters->jpwl_pprot[i];
}
}
/* set ESD writing */
if ((parameters->jpwl_sens_size == 1) || (parameters->jpwl_sens_size == 2)) {
cp->esd_on = true;
cp->sens_size = parameters->jpwl_sens_size;
cp->sens_addr = parameters->jpwl_sens_addr;
cp->sens_range = parameters->jpwl_sens_range;
cp->sens_MH = parameters->jpwl_sens_MH;
for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
cp->sens_TPH_tileno[i] = parameters->jpwl_sens_TPH_tileno[i];
cp->sens_TPH[i] = parameters->jpwl_sens_TPH[i];
}
}
/* always set RED writing to false: we are at the encoder */
cp->red_on = false;
} else {
cp->epc_on = false;
}
#endif /* USE_JPWL */
/* initialize the mutiple tiles */
/* ---------------------------- */
cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t));
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
opj_tcp_t *tcp = &cp->tcps[tileno];
tcp->numlayers = parameters->tcp_numlayers;
for (j = 0; j < tcp->numlayers; j++) {
if(cp->cinema){
if (cp->fixed_quality) {
tcp->distoratio[j] = parameters->tcp_distoratio[j];
}
tcp->rates[j] = parameters->tcp_rates[j];
}else{
if (cp->fixed_quality) { /* add fixed_quality */
tcp->distoratio[j] = parameters->tcp_distoratio[j];
} else {
tcp->rates[j] = parameters->tcp_rates[j];
}
}
}
tcp->csty = parameters->csty;
tcp->prg = parameters->prog_order;
tcp->mct = parameters->tcp_mct;
numpocs_tile = 0;
tcp->POC = 0;
if (parameters->numpocs) {
/* initialisation of POC */
tcp->POC = 1;
for (i = 0; i < parameters->numpocs; i++) {
if((tileno == parameters->POC[i].tile - 1) || (parameters->POC[i].tile == -1)) {
opj_poc_t *tcp_poc = &tcp->pocs[numpocs_tile];
tcp_poc->resno0 = parameters->POC[numpocs_tile].resno0;
tcp_poc->compno0 = parameters->POC[numpocs_tile].compno0;
tcp_poc->layno1 = parameters->POC[numpocs_tile].layno1;
tcp_poc->resno1 = parameters->POC[numpocs_tile].resno1;
tcp_poc->compno1 = parameters->POC[numpocs_tile].compno1;
tcp_poc->prg1 = parameters->POC[numpocs_tile].prg1;
tcp_poc->tile = parameters->POC[numpocs_tile].tile;
numpocs_tile++;
}
}
tcp->numpocs = numpocs_tile -1 ;
}else{
tcp->numpocs = 0;
}
tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t));
for (i = 0; i < image->numcomps; i++) {
opj_tccp_t *tccp = &tcp->tccps[i];
tccp->csty = parameters->csty & 0x01; /* 0 => one precinct || 1 => custom precinct */
tccp->numresolutions = parameters->numresolution;
tccp->cblkw = int_floorlog2(parameters->cblockw_init);
tccp->cblkh = int_floorlog2(parameters->cblockh_init);
tccp->cblksty = parameters->mode;
tccp->qmfbid = parameters->irreversible ? 0 : 1;
tccp->qntsty = parameters->irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT;
tccp->numgbits = 2;
if (i == parameters->roi_compno) {
tccp->roishift = parameters->roi_shift;
} else {
tccp->roishift = 0;
}
if(parameters->cp_cinema)
{
//Precinct size for lowest frequency subband=128
tccp->prcw[0] = 7;
tccp->prch[0] = 7;
//Precinct size at all other resolutions = 256
for (j = 1; j < tccp->numresolutions; j++) {
tccp->prcw[j] = 8;
tccp->prch[j] = 8;
}
}else{
if (parameters->csty & J2K_CCP_CSTY_PRT) {
int p = 0;
for (j = tccp->numresolutions - 1; j >= 0; j--) {
if (p < parameters->res_spec) {
if (parameters->prcw_init[p] < 1) {
tccp->prcw[j] = 1;
} else {
tccp->prcw[j] = int_floorlog2(parameters->prcw_init[p]);
}
if (parameters->prch_init[p] < 1) {
tccp->prch[j] = 1;
}else {
tccp->prch[j] = int_floorlog2(parameters->prch_init[p]);
}
} else {
int res_spec = parameters->res_spec;
int size_prcw = parameters->prcw_init[res_spec - 1] >> (p - (res_spec - 1));
int size_prch = parameters->prch_init[res_spec - 1] >> (p - (res_spec - 1));
if (size_prcw < 1) {
tccp->prcw[j] = 1;
} else {
tccp->prcw[j] = int_floorlog2(size_prcw);
}
if (size_prch < 1) {
tccp->prch[j] = 1;
} else {
tccp->prch[j] = int_floorlog2(size_prch);
}
}
p++;
/*printf("\nsize precinct for level %d : %d,%d\n", j,tccp->prcw[j], tccp->prch[j]); */
} //end for
} else {
for (j = 0; j < tccp->numresolutions; j++) {
tccp->prcw[j] = 15;
tccp->prch[j] = 15;
}
}
}
dwt_calc_explicit_stepsizes(tccp, image->comps[i].prec);
}
}
}
bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
int tileno, compno;
opj_cp_t *cp = NULL;
opj_tcd_t *tcd = NULL; /* TCD component */
j2k->cio = cio;
j2k->image = image;
cp = j2k->cp;
/* j2k_dump_cp(stdout, image, cp); */
/* INDEX >> */
j2k->cstr_info = cstr_info;
if (cstr_info) {
int compno;
cstr_info->tile = (opj_tile_info_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tile_info_t));
cstr_info->image_w = image->x1 - image->x0;
cstr_info->image_h = image->y1 - image->y0;
cstr_info->prog = (&cp->tcps[0])->prg;
cstr_info->tw = cp->tw;
cstr_info->th = cp->th;
cstr_info->tile_x = cp->tdx; /* new version parser */
cstr_info->tile_y = cp->tdy; /* new version parser */
cstr_info->tile_Ox = cp->tx0; /* new version parser */
cstr_info->tile_Oy = cp->ty0; /* new version parser */
cstr_info->numcomps = image->numcomps;
cstr_info->numlayers = (&cp->tcps[0])->numlayers;
cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int));
for (compno=0; compno < image->numcomps; compno++) {
cstr_info->numdecompos[compno] = (&cp->tcps[0])->tccps->numresolutions - 1;
}
cstr_info->D_max = 0.0; /* ADD Marcela */
cstr_info->main_head_start = cio_tell(cio); /* position of SOC */
cstr_info->maxmarknum = 100;
cstr_info->marker = (opj_marker_info_t *) opj_malloc(cstr_info->maxmarknum * sizeof(opj_marker_info_t));
cstr_info->marknum = 0;
}
/* << INDEX */
j2k_write_soc(j2k);
j2k_write_siz(j2k);
j2k_write_cod(j2k);
j2k_write_qcd(j2k);
if(cp->cinema){
for (compno = 1; compno < image->numcomps; compno++) {
j2k_write_coc(j2k, compno);
j2k_write_qcc(j2k, compno);
}
}
for (compno = 0; compno < image->numcomps; compno++) {
opj_tcp_t *tcp = &cp->tcps[0];
if (tcp->tccps[compno].roishift)
j2k_write_rgn(j2k, compno, 0);
}
if (cp->comment != NULL) {
j2k_write_com(j2k);
}
j2k->totnum_tp = j2k_calculate_tp(cp,image->numcomps,image,j2k);
/* TLM Marker*/
if(cp->cinema){
j2k_write_tlm(j2k);
if (cp->cinema == CINEMA4K_24) {
j2k_write_poc(j2k);
}
}
/* uncomment only for testing JPSEC marker writing */
/* j2k_write_sec(j2k); */
/* INDEX >> */
if(cstr_info) {
cstr_info->main_head_end = cio_tell(cio) - 1;
}
/* << INDEX */
/**** Main Header ENDS here ***/
/* create the tile encoder */
tcd = tcd_create(j2k->cinfo);
/* encode each tile */
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
int pino;
int tilepartno=0;
/* UniPG>> */
int acc_pack_num = 0;
/* <<UniPG */
opj_tcp_t *tcp = &cp->tcps[tileno];
opj_event_msg(j2k->cinfo, EVT_INFO, "tile number %d / %d\n", tileno + 1, cp->tw * cp->th);
j2k->curtileno = tileno;
j2k->cur_tp_num = 0;
tcd->cur_totnum_tp = j2k->cur_totnum_tp[j2k->curtileno];
/* initialisation before tile encoding */
if (tileno == 0) {
tcd_malloc_encode(tcd, image, cp, j2k->curtileno);
} else {
tcd_init_encode(tcd, image, cp, j2k->curtileno);
}
/* INDEX >> */
if(cstr_info) {
cstr_info->tile[j2k->curtileno].start_pos = cio_tell(cio) + j2k->pos_correction;
}
/* << INDEX */
for(pino = 0; pino <= tcp->numpocs; pino++) {
int tot_num_tp;
tcd->cur_pino=pino;
/*Get number of tile parts*/
tot_num_tp = j2k_get_num_tp(cp,pino,tileno);
tcd->tp_pos = cp->tp_pos;
for(tilepartno = 0; tilepartno < tot_num_tp ; tilepartno++){
j2k->tp_num = tilepartno;
/* INDEX >> */
if(cstr_info)
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pos =
cio_tell(cio) + j2k->pos_correction;
/* << INDEX */
j2k_write_sot(j2k);
if(j2k->cur_tp_num == 0 && cp->cinema == 0){
for (compno = 1; compno < image->numcomps; compno++) {
j2k_write_coc(j2k, compno);
j2k_write_qcc(j2k, compno);
}
if (cp->tcps[tileno].numpocs) {
j2k_write_poc(j2k);
}
}
/* INDEX >> */
if(cstr_info)
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_header =
cio_tell(cio) + j2k->pos_correction + 1;
/* << INDEX */
j2k_write_sod(j2k, tcd);
/* INDEX >> */
if(cstr_info) {
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_pos =
cio_tell(cio) + j2k->pos_correction - 1;
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pack =
acc_pack_num;
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_numpacks =
cstr_info->packno - acc_pack_num;
acc_pack_num = cstr_info->packno;
}
/* << INDEX */
j2k->cur_tp_num++;
}
}
if(cstr_info) {
cstr_info->tile[j2k->curtileno].end_pos = cio_tell(cio) + j2k->pos_correction - 1;
}
/*
if (tile->PPT) { // BAD PPT !!!
FILE *PPT_file;
int i;
PPT_file=fopen("PPT","rb");
fprintf(stderr,"%c%c%c%c",255,97,tile->len_ppt/256,tile->len_ppt%256);
for (i=0;i<tile->len_ppt;i++) {
unsigned char elmt;
fread(&elmt, 1, 1, PPT_file);
fwrite(&elmt,1,1,f);
}
fclose(PPT_file);
unlink("PPT");
}
*/
}
/* destroy the tile encoder */
tcd_free_encode(tcd);
tcd_destroy(tcd);
opj_free(j2k->cur_totnum_tp);
j2k_write_eoc(j2k);
if(cstr_info) {
cstr_info->codestream_size = cio_tell(cio) + j2k->pos_correction;
/* UniPG>> */
/* The following adjustment is done to adjust the codestream size */
/* if SOD is not at 0 in the buffer. Useful in case of JP2, where */
/* the first bunch of bytes is not in the codestream */
cstr_info->codestream_size -= cstr_info->main_head_start;
/* <<UniPG */
}
#ifdef USE_JPWL
/*
preparation of JPWL marker segments
*/
if(cp->epc_on) {
/* encode according to JPWL */
jpwl_encode(j2k, cio, image);
}
#endif /* USE_JPWL */
return true;
}
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