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openjpeg/codec/image_to_j2k.c

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "openjpeg.h"
#include "compat/getopt.h"
#include "convert.h"
#ifndef WIN32
#define stricmp strcasecmp
#define strnicmp strncasecmp
#endif
/* ----------------------------------------------------------------------- */
#define J2K_CFMT 0
#define JP2_CFMT 1
#define JPT_CFMT 2
#define MJ2_CFMT 3
#define PXM_DFMT 0
#define PGX_DFMT 1
#define BMP_DFMT 2
#define YUV_DFMT 3
/* ----------------------------------------------------------------------- */
void encode_help_display() {
fprintf(stdout,"HELP\n----\n\n");
fprintf(stdout,"- the -h option displays this help information on screen\n\n");
fprintf(stdout,"List of parameters for the JPEG 2000 encoder:\n");
fprintf(stdout,"\n");
fprintf(stdout,"REMARKS:\n");
fprintf(stdout,"---------\n");
fprintf(stdout,"\n");
fprintf(stdout,"The markers written to the main_header are : SOC SIZ COD QCD COM.\n");
fprintf(stdout,"COD and QCD never appear in the tile_header.\n");
fprintf(stdout,"\n");
fprintf(stdout,"- This coder can encode a mega image, a test was made on a 24000x24000 pixels \n");
fprintf(stdout,"color image. You need enough disk space memory (twice the original) to encode \n");
fprintf(stdout,"the image,i.e. for a 1.5 GB image you need a minimum of 3GB of disk memory)\n");
fprintf(stdout,"\n");
fprintf(stdout,"By default:\n");
fprintf(stdout,"------------\n");
fprintf(stdout,"\n");
fprintf(stdout," * Lossless\n");
fprintf(stdout," * 1 tile\n");
fprintf(stdout," * Size of precinct : 2^15 x 2^15 (means 1 precinct)\n");
fprintf(stdout," * Size of code-block : 64 x 64\n");
fprintf(stdout," * Number of resolutions: 6\n");
fprintf(stdout," * No SOP marker in the codestream\n");
fprintf(stdout," * No EPH marker in the codestream\n");
fprintf(stdout," * No sub-sampling in x or y direction\n");
fprintf(stdout," * No mode switch activated\n");
fprintf(stdout," * Progression order: LRCP\n");
fprintf(stdout," * No index file\n");
fprintf(stdout," * No ROI upshifted\n");
fprintf(stdout," * No offset of the origin of the image\n");
fprintf(stdout," * No offset of the origin of the tiles\n");
fprintf(stdout," * Reversible DWT 5-3\n");
fprintf(stdout,"\n");
fprintf(stdout,"Parameters:\n");
fprintf(stdout,"------------\n");
fprintf(stdout,"\n");
fprintf(stdout,"Required Parameters (except with -h):\n");
fprintf(stdout,"\n");
fprintf(stdout,"-i : source file (-i source.pnm also *.pgm, *.ppm) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-o : destination file (-o dest.j2k or .jp2) \n");
fprintf(stdout,"\n");
fprintf(stdout,"Optional Parameters:\n");
fprintf(stdout,"\n");
fprintf(stdout,"-h : display the help information \n ");
fprintf(stdout,"\n");
fprintf(stdout,"-r : different compression ratios for successive layers (-r 20,10,5)\n ");
fprintf(stdout," - The rate specified for each quality level is the desired \n");
fprintf(stdout," compression factor.\n");
fprintf(stdout," Example: -r 20,10,1 means quality 1: compress 20x, \n");
fprintf(stdout," quality 2: compress 10x and quality 3: compress lossless\n");
fprintf(stdout,"\n");
fprintf(stdout," (options -r and -q cannot be used together)\n ");
fprintf(stdout,"\n");
fprintf(stdout,"-q : different psnr for successive layers (-q 30,40,50) \n ");
fprintf(stdout," (options -r and -q cannot be used together)\n ");
fprintf(stdout,"\n");
fprintf(stdout,"-n : number of resolutions (-n 3) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-b : size of code block (-b 32,32) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-c : size of precinct (-c 128,128) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-t : size of tile (-t 512,512) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-p : progression order (-p LRCP) [LRCP, RLCP, RPCL, PCRL, CPRL] \n");
fprintf(stdout,"\n");
fprintf(stdout,"-s : subsampling factor (-s 2,2) [-s X,Y] \n");
fprintf(stdout," Remark: subsampling bigger than 2 can produce error\n");
fprintf(stdout,"\n");
fprintf(stdout,"-SOP : write SOP marker before each packet \n");
fprintf(stdout,"\n");
fprintf(stdout,"-EPH : write EPH marker after each header packet \n");
fprintf(stdout,"\n");
fprintf(stdout,"-M : mode switch (-M 3) [1=BYPASS(LAZY) 2=RESET 4=RESTART(TERMALL)\n");
fprintf(stdout," 8=VSC 16=ERTERM(SEGTERM) 32=SEGMARK(SEGSYM)] \n");
fprintf(stdout," Indicate multiple modes by adding their values. \n");
fprintf(stdout," ex: RESTART(4) + RESET(2) + SEGMARK(32) = -M 38\n");
fprintf(stdout,"\n");
fprintf(stdout,"-x : create an index file *.Idx (-x index_name.Idx) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-ROI : c=%%d,U=%%d : quantization indices upshifted \n");
fprintf(stdout," for component c=%%d [%%d = 0,1,2]\n");
fprintf(stdout," with a value of U=%%d [0 <= %%d <= 37] (i.e. -ROI:c=0,U=25) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-d : offset of the origin of the image (-d 150,300) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-T : offset of the origin of the tiles (-T 100,75) \n");
fprintf(stdout,"\n");
fprintf(stdout,"-I : use the irreversible DWT 9-7 (-I) \n");
fprintf(stdout,"\n");
fprintf(stdout,"IMPORTANT:\n");
fprintf(stdout,"-----------\n");
fprintf(stdout,"\n");
fprintf(stdout,"The index file has the structure below:\n");
fprintf(stdout,"---------------------------------------\n");
fprintf(stdout,"\n");
fprintf(stdout,"Image_height Image_width\n");
fprintf(stdout,"progression order\n");
fprintf(stdout,"Tiles_size_X Tiles_size_Y\n");
fprintf(stdout,"Components_nb\n");
fprintf(stdout,"Layers_nb\n");
fprintf(stdout,"decomposition_levels\n");
fprintf(stdout,"[Precincts_size_X_res_Nr Precincts_size_Y_res_Nr]...\n");
fprintf(stdout," [Precincts_size_X_res_0 Precincts_size_Y_res_0]\n");
fprintf(stdout,"Main_header_end_position\n");
fprintf(stdout,"Codestream_size\n");
fprintf(stdout,"Tile_0 start_pos end_Theader end_pos TotalDisto NumPix MaxMSE\n");
fprintf(stdout,"Tile_1 '' '' '' '' '' ''\n");
fprintf(stdout,"...\n");
fprintf(stdout,"Tile_Nt '' '' '' '' '' ''\n");
fprintf(stdout,"Tpacket_0 Tile layer res. comp. prec. start_pos end_pos disto\n");
fprintf(stdout,"...\n");
fprintf(stdout,"Tpacket_Np '' '' '' '' '' '' '' ''\n");
fprintf(stdout,"MaxDisto\n");
fprintf(stdout,"TotalDisto\n\n");
}
OPJ_PROG_ORDER give_progression(char progression[4]) {
if(strncmp(progression, "LRCP", 4) == 0) {
return LRCP;
}
if(strncmp(progression, "RLCP", 4) == 0) {
return RLCP;
}
if(strncmp(progression, "RPCL", 4) == 0) {
return RPCL;
}
if(strncmp(progression, "PCRL", 4) == 0) {
return PCRL;
}
if(strncmp(progression, "CPRL", 4) == 0) {
return CPRL;
}
return PROG_UNKNOWN;
}
int get_file_format(char *filename) {
unsigned int i;
static const char *extension[] = {
"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2"
};
static const int format[] = {
PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, J2K_CFMT, JP2_CFMT
};
char * ext = strrchr(filename, '.') + 1;
for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
if(strnicmp(ext, extension[i], 3) == 0) {
return format[i];
}
}
return -1;
}
/* -------------------------------------------------------------------------*/
int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters) {
int i, j;
/* parse the command line */
while (1) {
int c = getopt(argc, argv, "i:o:r:q:f:t:n:c:b:x:p:s:d:hP:S:E:M:R:T:C:I");
if (c == -1)
break;
switch (c) {
case 'i': /* input file */
{
char *infile = optarg;
parameters->decod_format = get_file_format(infile);
switch(parameters->decod_format) {
case PGX_DFMT:
case PXM_DFMT:
case BMP_DFMT:
break;
default:
fprintf(stderr,
"!! Unrecognized format for infile : %s "
"[accept only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp] !!\n\n",
infile);
return 1;
}
strncpy(parameters->infile, infile, MAX_PATH);
}
break;
/* ----------------------------------------------------- */
case 'o': /* output file */
{
char *outfile = optarg;
parameters->cod_format = get_file_format(outfile);
switch(parameters->cod_format) {
case J2K_CFMT:
case JP2_CFMT:
break;
default:
fprintf(stderr, "Unknown output format image %s [only *.j2k, *.jp2]!! \n", outfile);
return 1;
}
strncpy(parameters->outfile, outfile, MAX_PATH);
}
break;
/* ----------------------------------------------------- */
case 'r': /* rates rates/distorsion */
{
char *s = optarg;
while (sscanf(s, "%f", &parameters->tcp_rates[parameters->tcp_numlayers]) == 1) {
parameters->tcp_numlayers++;
while (*s && *s != ',') {
s++;
}
if (!*s)
break;
s++;
}
parameters->cp_disto_alloc = 1;
}
break;
/* ----------------------------------------------------- */
case 'q': /* add fixed_quality */
{
char *s = optarg;
while (sscanf(s, "%f", &parameters->tcp_distoratio[parameters->tcp_numlayers]) == 1) {
parameters->tcp_numlayers++;
while (*s && *s != ',') {
s++;
}
if (!*s)
break;
s++;
}
parameters->cp_fixed_quality = 1;
}
break;
/* dda */
/* ----------------------------------------------------- */
case 'f': /* mod fixed_quality (before : -q) */
{
int *row = NULL, *col = NULL;
int numlayers = 0, numresolution = 0, matrix_width = 0;
char *s = optarg;
sscanf(s, "%d", &numlayers);
s++;
if (numlayers > 9)
s++;
parameters->tcp_numlayers = numlayers;
numresolution = parameters->numresolution;
matrix_width = numresolution * 3;
parameters->cp_matrice = (int *) malloc(numlayers * matrix_width * sizeof(int));
s = s + 2;
for (i = 0; i < numlayers; i++) {
row = &parameters->cp_matrice[i * matrix_width];
col = row;
parameters->tcp_rates[i] = 1;
sscanf(s, "%d,", &col[0]);
s += 2;
if (col[0] > 9)
s++;
col[1] = 0;
col[2] = 0;
for (j = 1; j < numresolution; j++) {
col += 3;
sscanf(s, "%d,%d,%d", &col[0], &col[1], &col[2]);
s += 6;
if (col[0] > 9)
s++;
if (col[1] > 9)
s++;
if (col[2] > 9)
s++;
}
if (i < numlayers - 1)
s++;
}
parameters->cp_fixed_alloc = 1;
}
break;
/* ----------------------------------------------------- */
case 't': /* tiles */
{
sscanf(optarg, "%d,%d", &parameters->cp_tdx, &parameters->cp_tdy);
parameters->tile_size_on = true;
}
break;
/* ----------------------------------------------------- */
case 'n': /* resolution */
{
sscanf(optarg, "%d", &parameters->numresolution);
}
break;
/* ----------------------------------------------------- */
case 'c': /* precinct dimension */
{
char sep;
int res_spec = 0;
char *s = optarg;
do {
sep = 0;
sscanf(s, "[%d,%d]%c", &parameters->prcw_init[res_spec],
&parameters->prch_init[res_spec], &sep);
parameters->csty |= 0x01;
res_spec++;
s = strpbrk(s, "]") + 2;
}
while (sep == ',');
parameters->res_spec = res_spec;
}
break;
/* ----------------------------------------------------- */
case 'b': /* code-block dimension */
{
int cblockw_init = 0, cblockh_init = 0;
sscanf(optarg, "%d,%d", &cblockw_init, &cblockh_init);
if (cblockw_init * cblockh_init > 4096 || cblockw_init > 1024
|| cblockw_init < 4 || cblockh_init > 1024 || cblockh_init < 4) {
fprintf(stderr,
"!! Size of code_block error (option -b) !!\n\nRestriction :\n"
" * width*height<=4096\n * 4<=width,height<= 1024\n\n");
return 1;
}
parameters->cblockw_init = cblockw_init;
parameters->cblockh_init = cblockh_init;
}
break;
/* ----------------------------------------------------- */
case 'x': /* creation of index file */
{
char *index = optarg;
strncpy(parameters->index, index, MAX_PATH);
parameters->index_on = 1;
}
break;
/* ----------------------------------------------------- */
case 'p': /* progression order */
{
char progression[4];
strncpy(progression, optarg, 4);
parameters->prog_order = give_progression(progression);
if (parameters->prog_order == -1) {
fprintf(stderr, "Unrecognized progression order "
"[LRCP, RLCP, RPCL, PCRL, CPRL] !!\n");
return 1;
}
}
break;
/* ----------------------------------------------------- */
case 's': /* subsampling factor */
{
if (sscanf(optarg, "%d,%d", &parameters->subsampling_dx,
&parameters->subsampling_dy) != 2) {
fprintf(stderr, "'-s' sub-sampling argument error ! [-s dx,dy]\n");
return 1;
}
}
break;
/* ----------------------------------------------------- */
case 'd': /* coordonnate of the reference grid */
{
if (sscanf(optarg, "%d,%d", &parameters->image_offset_x0,
&parameters->image_offset_y0) != 2) {
fprintf(stderr, "-d 'coordonnate of the reference grid' argument "
"error !! [-d x0,y0]\n");
return 1;
}
}
break;
/* ----------------------------------------------------- */
case 'h': /* display an help description */
encode_help_display();
return 1;
/* ----------------------------------------------------- */
case 'P': /* POC */
{
int numpocs = 0; /* number of progression order change (POC) default 0 */
opj_poc_t *POC = NULL; /* POC : used in case of Progression order change */
char *s = optarg;
POC = parameters->POC;
fprintf(stderr, "/----------------------------------\\\n");
fprintf(stderr, "| POC option not fully tested !! |\n");
fprintf(stderr, "\\----------------------------------/\n");
while (sscanf(s, "T%d=%d,%d,%d,%d,%d,%s", &POC[numpocs].tile,
&POC[numpocs].resno0, &POC[numpocs].compno0,
&POC[numpocs].layno1, &POC[numpocs].resno1,
&POC[numpocs].compno1, POC[numpocs].progorder) == 7) {
POC[numpocs].prg = give_progression(POC[numpocs].progorder);
/* POC[numpocs].tile; */
numpocs++;
while (*s && *s != '/') {
s++;
}
if (!*s) {
break;
}
s++;
}
parameters->numpocs = numpocs;
}
break;
/* ------------------------------------------------------ */
case 'S': /* SOP marker */
{
parameters->csty |= 0x02;
}
break;
/* ------------------------------------------------------ */
case 'E': /* EPH marker */
{
parameters->csty |= 0x04;
}
break;
/* ------------------------------------------------------ */
case 'M': /* Mode switch pas tous au point !! */
{
int value = 0;
if (sscanf(optarg, "%d", &value) == 1) {
for (i = 0; i <= 5; i++) {
int cache = value & (1 << i);
if (cache)
parameters->mode |= (1 << i);
}
}
}
break;
/* ------------------------------------------------------ */
case 'R': /* ROI */
{
if (sscanf(optarg, "OI:c=%d,U=%d", &parameters->roi_compno,
&parameters->roi_shift) != 2) {
fprintf(stderr, "ROI error !! [-ROI:c='compno',U='shift']\n");
return 1;
}
}
break;
/* ------------------------------------------------------ */
case 'T': /* Tile offset */
{
if (sscanf(optarg, "%d,%d", &parameters->cp_tx0, &parameters->cp_ty0) != 2) {
fprintf(stderr, "-T 'tile offset' argument error !! [-T X0,Y0]");
return 1;
}
}
break;
/* ------------------------------------------------------ */
case 'C': /* add a comment */
{
parameters->cp_comment = (char*)malloc(strlen(optarg) + 1);
if(parameters->cp_comment) {
strcpy(parameters->cp_comment, optarg);
}
}
break;
/* ------------------------------------------------------ */
case 'I': /* reversible or not */
{
parameters->irreversible = 1;
}
break;
/* ------------------------------------------------------ */
default:
fprintf(stderr, "ERROR -> this option is not valid \"-%c %s\"\n", c, optarg);
return 1;
}
}
/* check for possible errors */
if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
fprintf(stderr, "usage: image_to_j2k -i image-file -o j2k/jp2-file (+ options)\n");
return 1;
}
if ((parameters->cp_disto_alloc || parameters->cp_fixed_alloc || parameters->cp_fixed_quality)
&& (!(parameters->cp_disto_alloc ^ parameters->cp_fixed_alloc ^ parameters->cp_fixed_quality))) {
fprintf(stderr, "Error: options -r -q and -f cannot be used together !!\n");
return 1;
} /* mod fixed_quality */
/* if no rate entered, lossless by default */
if (parameters->tcp_numlayers == 0) {
parameters->tcp_rates[0] = 0; /* MOD antonin : losslessbug */
parameters->tcp_numlayers++;
parameters->cp_disto_alloc = 1;
}
if((parameters->cp_tx0 > parameters->image_offset_x0) || (parameters->cp_ty0 > parameters->image_offset_y0)) {
fprintf(stderr,
"Error: Tile offset dimension is unnappropriate --> TX0(%d)<=IMG_X0(%d) TYO(%d)<=IMG_Y0(%d) \n",
parameters->cp_tx0, parameters->image_offset_x0, parameters->cp_ty0, parameters->image_offset_y0);
return 1;
}
for (i = 0; i < parameters->numpocs; i++) {
if (parameters->POC[i].prg == -1) {
fprintf(stderr,
"Unrecognized progression order in option -P (POC n %d) [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n",
i + 1);
}
}
return 0;
}
/* -------------------------------------------------------------------------- */
/**
sample error callback expecting a FILE* client object
*/
void error_callback(const char *msg, void *client_data) {
FILE *stream = (FILE*)client_data;
fprintf(stream, "[ERROR] %s", msg);
}
/**
sample warning callback expecting a FILE* client object
*/
void warning_callback(const char *msg, void *client_data) {
FILE *stream = (FILE*)client_data;
fprintf(stream, "[WARNING] %s", msg);
}
/**
sample debug callback expecting a FILE* client object
*/
void info_callback(const char *msg, void *client_data) {
FILE *stream = (FILE*)client_data;
fprintf(stream, "[INFO] %s", msg);
}
/* -------------------------------------------------------------------------- */
int main(int argc, char **argv) {
bool bSuccess;
opj_cparameters_t parameters; /* compression parameters */
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
/*
configure the event callbacks (not required)
setting of each callback is optionnal
*/
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* set encoding parameters to default values */
opj_set_default_encoder_parameters(&parameters);
/* parse input and get user encoding parameters */
if(parse_cmdline_encoder(argc, argv, &parameters) == 1) {
return 0;
}
if(parameters.cp_comment == NULL) {
const char comment[] = "Created by OpenJPEG version ";
const size_t clen = strlen(comment);
const char *version = opj_version();
parameters.cp_comment = (char*)malloc(clen+strlen(version)+1);
strncpy(parameters.cp_comment, comment, clen); /* clen bytes */
strcpy(parameters.cp_comment+clen, version); /* strlen(version) + \0 */
}
/* decode the source image */
/* ----------------------- */
switch (parameters.decod_format) {
case PGX_DFMT:
image = pgxtoimage(parameters.infile, &parameters);
if (!image) {
fprintf(stderr, " unable to load pgx file\n");
return 1;
}
break;
case PXM_DFMT:
image = pnmtoimage(parameters.infile, &parameters);
if (!image) {
fprintf(stderr, " not a pnm file\n");
return 1;
}
break;
case BMP_DFMT:
image = bmptoimage(parameters.infile, &parameters);
if (!image) {
fprintf(stderr, " not a bmp file\n");
return 1;
}
break;
}
/* encode the destination image */
/* ---------------------------- */
if (parameters.cod_format == J2K_CFMT) { /* J2K format output */
int codestream_length;
opj_cio_t *cio = NULL;
FILE *f = NULL;
/* get a J2K compressor handle */
opj_cinfo_t* cinfo = opj_create_compress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);
/* setup the encoder parameters using the current image and user parameters */
opj_setup_encoder(cinfo, &parameters, image);
/* open a byte stream for writing */
/* allocate memory for all tiles */
cio = opj_cio_open((opj_common_ptr)cinfo, NULL, 0);
/* encode the image */
bSuccess = opj_encode(cinfo, cio, image, parameters.index);
if (!bSuccess) {
opj_cio_close(cio);
fprintf(stderr, "failed to encode image\n");
return 1;
}
codestream_length = cio_tell(cio);
/* write the buffer to disk */
f = fopen(parameters.outfile, "wb");
if (!f) {
fprintf(stderr, "failed to open %s for writing\n", parameters.outfile);
return 1;
}
fwrite(cio->buffer, 1, codestream_length, f);
fclose(f);
/* close and free the byte stream */
opj_cio_close(cio);
/* free remaining compression structures */
opj_destroy_compress(cinfo);
} else { /* JP2 format output */
int codestream_length;
opj_cio_t *cio = NULL;
FILE *f = NULL;
/* get a JP2 compressor handle */
opj_cinfo_t* cinfo = opj_create_compress(CODEC_JP2);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);
/* setup the encoder parameters using the current image and using user parameters */
opj_setup_encoder(cinfo, &parameters, image);
/* open a byte stream for writing */
/* allocate memory for all tiles */
cio = opj_cio_open((opj_common_ptr)cinfo, NULL, 0);
/* encode the image */
bSuccess = opj_encode(cinfo, cio, image, parameters.index);
if (!bSuccess) {
opj_cio_close(cio);
fprintf(stderr, "failed to encode image\n");
return 1;
}
codestream_length = cio_tell(cio);
/* write the buffer to disk */
f = fopen(parameters.outfile, "wb");
if (!f) {
fprintf(stderr, "failed to open %s for writing\n", parameters.outfile);
return 1;
}
fwrite(cio->buffer, 1, codestream_length, f);
fclose(f);
/* close and free the byte stream */
opj_cio_close(cio);
/* free remaining compression structures */
opj_destroy_compress(cinfo);
}
/* free user parameters structure */
if(parameters.cp_comment) free(parameters.cp_comment);
if(parameters.cp_matrice) free(parameters.cp_matrice);
/* free image data */
opj_image_destroy(image);
return 0;
}
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