codec/j2k_to_image.c

   1 /*
   2  * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
   3  * Copyright (c) 2002-2007, Professor Benoit Macq
   4  * Copyright (c) 2001-2003, David Janssens
   5  * Copyright (c) 2002-2003, Yannick Verschueren
   6  * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
   7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
   8  * Copyright (c) 2006-2007, Parvatha Elangovan
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <stdlib.h>
  35
  36 #include "openjpeg.h"
  37 #include "compat/getopt.h"
  38 #include "convert.h"
  39 #include "dirent.h"
  40
  41 #ifndef WIN32
  42 #define stricmp strcasecmp
  43 #define strnicmp strncasecmp
  44 #endif
  45
  46 /* ----------------------------------------------------------------------- */
  47
  48 #define J2K_CFMT 0
  49 #define JP2_CFMT 1
  50 #define JPT_CFMT 2
  51
  52 #define PXM_DFMT 10
  53 #define PGX_DFMT 11
  54 #define BMP_DFMT 12
  55 #define YUV_DFMT 13
  56 #define TIF_DFMT 14
  57 #define RAW_DFMT 15
  58
  59 /* ----------------------------------------------------------------------- */
  60
  61 typedef struct dircnt{
  62         /** Buffer for holding images read from Directory*/
  63         char *filename_buf;
  64         /** Pointer to the buffer*/
  65         char **filename;
  66 }dircnt_t;
  67
  68
  69 typedef struct img_folder{
  70         /** The directory path of the folder containing input images*/
  71         char *imgdirpath;
  72         /** Output format*/
  73         char *out_format;
  74         /** Enable option*/
  75         char set_imgdir;
  76         /** Enable Cod Format for output*/
  77         char set_out_format;
  78
  79 }img_fol_t;
  80
  81 void decode_help_display() {
  82         fprintf(stdout,"HELP\n----\n\n");
  83         fprintf(stdout,"- the -h option displays this help information on screen\n\n");
  84
  85 /* UniPG>> */
  86         fprintf(stdout,"List of parameters for the JPEG 2000 "
  87 #ifdef USE_JPWL
  88                 "+ JPWL "
  89 #endif /* USE_JPWL */
  90                 "decoder:\n");
  91 /* <<UniPG */
  92         fprintf(stdout,"\n");
  93         fprintf(stdout,"\n");
  94         fprintf(stdout,"  -ImgDir \n");
  95         fprintf(stdout,"        Image file Directory path \n");
  96         fprintf(stdout,"  -OutFor \n");
  97         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
  98         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
  99         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF and RAW formats\n");
 100         fprintf(stdout,"  -i <compressed file>\n");
 101         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
 102         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
 103         fprintf(stdout,"    is identified based on its suffix.\n");
 104         fprintf(stdout,"  -o <decompressed file>\n");
 105         fprintf(stdout,"    REQUIRED\n");
 106         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF and RAW files\n");
 107         fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
 108         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
 109         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
 110         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
 111         fprintf(stdout,"    is given and there are more than one component, only the first component\n");
 112         fprintf(stdout,"    will be written to the file.\n");
 113         fprintf(stdout,"  -r <reduce factor>\n");
 114         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
 115         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
 116         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
 117         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
 118         fprintf(stdout,"  -l <number of quality layers to decode>\n");
 119         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
 120         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
 121         fprintf(stdout,"    are decoded.\n");
 122 /* UniPG>> */
 123 #ifdef USE_JPWL
 124         fprintf(stdout,"  -W <options>\n");
 125         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
 126         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
 127         fprintf(stdout,"    c, c=numcomps\n");
 128         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
 129         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
 130 #endif /* USE_JPWL */
 131 /* <<UniPG */
 132         fprintf(stdout,"\n");
 133 }
 134
 135 /* -------------------------------------------------------------------------- */
 136
 137 int get_num_images(char *imgdirpath){
 138         DIR *dir;
 139         struct dirent* content;
 140         int num_images = 0;
 141
 142         /*Reading the input images from given input directory*/
 143
 144         dir= opendir(imgdirpath);
 145         if(!dir){
 146                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 147                 return 0;
 148         }
 149
 150         while((content=readdir(dir))!=NULL){
 151                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 152                         continue;
 153                 num_images++;
 154         }
 155         return num_images;
 156 }
 157
 158 int load_images(dircnt_t *dirptr, char *imgdirpath){
 159         DIR *dir;
 160         struct dirent* content;
 161         int i = 0;
 162
 163         /*Reading the input images from given input directory*/
 164
 165         dir= opendir(imgdirpath);
 166         if(!dir){
 167                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 168                 return 1;
 169         }else   {
 170                 fprintf(stderr,"Folder opened successfully\n");
 171         }
 172
 173         while((content=readdir(dir))!=NULL){
 174                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 175                         continue;
 176
 177                 strcpy(dirptr->filename[i],content->d_name);
 178                 i++;
 179         }
 180         return 0;
 181 }
 182
 183 int get_file_format(char *filename) {
 184         unsigned int i;
 185         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "j2k", "jp2", "jpt", "j2c" };
 186         static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };
 187         char * ext = strrchr(filename, '.');
 188         if (ext == NULL)
 189                 return -1;
 190         ext++;
 191         if(ext) {
 192                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
 193                         if(strnicmp(ext, extension[i], 3) == 0) {
 194                                 return format[i];
 195                         }
 196                 }
 197         }
 198
 199         return -1;
 200 }
 201
 202 char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
 203         char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
 204
 205         strcpy(image_filename,dirptr->filename[imageno]);
 206         fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
 207         parameters->decod_format = get_file_format(image_filename);
 208         if (parameters->decod_format == -1)
 209                 return 1;
 210         sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
 211         strncpy(parameters->infile, infilename, sizeof(infilename));
 212
 213         //Set output file
 214         strcpy(temp_ofname,strtok(image_filename,"."));
 215         if(img_fol->set_out_format==1){
 216                 sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
 217                 strncpy(parameters->outfile, outfilename, sizeof(outfilename));
 218         }
 219         return 0;
 220 }
 221
 222
 223 /* -------------------------------------------------------------------------- */
 224
 225 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
 226         /* parse the command line */
 227         int totlen;
 228         option_t long_option[]={
 229                 {"ImgDir",REQ_ARG, NULL ,'y'},
 230                 {"OutFor",REQ_ARG, NULL ,'O'},
 231         };
 232
 233         const char optlist[] = "i:o:r:l:h"
 234
 235 /* UniPG>> */
 236 #ifdef USE_JPWL
 237                                         "W:"
 238 #endif /* USE_JPWL */
 239 /* <<UniPG */
 240                                         ;
 241         totlen=sizeof(long_option);
 242         img_fol->set_out_format = 0;
 243         while (1) {
 244                 int c = getopt_long(argc, argv,optlist,long_option,totlen);
 245                 if (c == -1)
 246                         break;
 247                 switch (c) {
 248                         case 'i':                       /* input file */
 249                         {
 250                                 char *infile = optarg;
 251                                 parameters->decod_format = get_file_format(infile);
 252                                 switch(parameters->decod_format) {
 253                                         case J2K_CFMT:
 254                                         case JP2_CFMT:
 255                                         case JPT_CFMT:
 256                                                 break;
 257                                         default:
 258                                                 fprintf(stderr,
 259                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
 260                                                         infile);
 261                                                 return 1;
 262                                 }
 263                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
 264                         }
 265                         break;
 266
 267                                 /* ----------------------------------------------------- */
 268
 269                         case 'o':                       /* output file */
 270                         {
 271                                 char *outfile = optarg;
 272                                 parameters->cod_format = get_file_format(outfile);
 273                                 switch(parameters->cod_format) {
 274                                         case PGX_DFMT:
 275                                         case PXM_DFMT:
 276                                         case BMP_DFMT:
 277                                         case TIF_DFMT:
 278                                         case RAW_DFMT:
 279                                                 break;
 280                                         default:
 281                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif or *.raw]!! \n", outfile);
 282                                                 return 1;
 283                                 }
 284                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
 285                         }
 286                         break;
 287
 288                                 /* ----------------------------------------------------- */
 289
 290                         case 'O':                       /* output format */
 291                         {
 292                                 char outformat[50];
 293                                 char *of = optarg;
 294                                 sprintf(outformat,".%s",of);
 295                                 img_fol->set_out_format = 1;
 296                                 parameters->cod_format = get_file_format(outformat);
 297                                 switch(parameters->cod_format) {
 298                                         case PGX_DFMT:
 299                                                 img_fol->out_format = "pgx";
 300                                                 break;
 301                                         case PXM_DFMT:
 302                                                 img_fol->out_format = "ppm";
 303                                                 break;
 304                                         case BMP_DFMT:
 305                                                 img_fol->out_format = "bmp";
 306                                                 break;
 307                                         case TIF_DFMT:
 308                                                 img_fol->out_format = "tif";
 309                                                 break;
 310                                         case RAW_DFMT:
 311                                                 img_fol->out_format = "raw";
 312                                                 break;
 313                                         default:
 314                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif or *.raw]!! \n");
 315                                                 return 1;
 316                                                 break;
 317                                 }
 318                         }
 319                         break;
 320
 321                                 /* ----------------------------------------------------- */
 322
 323
 324                         case 'r':               /* reduce option */
 325                         {
 326                                 sscanf(optarg, "%d", &parameters->cp_reduce);
 327                         }
 328                         break;
 329
 330                                 /* ----------------------------------------------------- */
 331
 332
 333                         case 'l':               /* layering option */
 334                         {
 335                                 sscanf(optarg, "%d", &parameters->cp_layer);
 336                         }
 337                         break;
 338
 339                                 /* ----------------------------------------------------- */
 340
 341                         case 'h':                       /* display an help description */
 342                                 decode_help_display();
 343                                 return 1;
 344
 345                                 /* ------------------------------------------------------ */
 346
 347                         case 'y':                       /* Image Directory path */
 348                                 {
 349                                         img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
 350                                         strcpy(img_fol->imgdirpath,optarg);
 351                                         img_fol->set_imgdir=1;
 352                                 }
 353                                 break;
 354                                 /* ----------------------------------------------------- */
 355 /* UniPG>> */
 356 #ifdef USE_JPWL
 357
 358                         case 'W':                       /* activate JPWL correction */
 359                         {
 360                                 char *token = NULL;
 361
 362                                 token = strtok(optarg, ",");
 363                                 while(token != NULL) {
 364
 365                                         /* search expected number of components */
 366                                         if (*token == 'c') {
 367
 368                                                 static int compno;
 369
 370                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
 371
 372                                                 if(sscanf(token, "c=%d", &compno) == 1) {
 373                                                         /* Specified */
 374                                                         if ((compno < 1) || (compno > 256)) {
 375                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
 376                                                                 return 1;
 377                                                         }
 378                                                         parameters->jpwl_exp_comps = compno;
 379
 380                                                 } else if (!strcmp(token, "c")) {
 381                                                         /* default */
 382                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */
 383
 384                                                 } else {
 385                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
 386                                                         return 1;
 387                                                 };
 388                                         }
 389
 390                                         /* search maximum number of tiles */
 391                                         if (*token == 't') {
 392
 393                                                 static int tileno;
 394
 395                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
 396
 397                                                 if(sscanf(token, "t=%d", &tileno) == 1) {
 398                                                         /* Specified */
 399                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
 400                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
 401                                                                 return 1;
 402                                                         }
 403                                                         parameters->jpwl_max_tiles = tileno;
 404
 405                                                 } else if (!strcmp(token, "t")) {
 406                                                         /* default */
 407                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */
 408
 409                                                 } else {
 410                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
 411                                                         return 1;
 412                                                 };
 413                                         }
 414
 415                                         /* next token or bust */
 416                                         token = strtok(NULL, ",");
 417                                 };
 418                                 parameters->jpwl_correct = true;
 419                                 fprintf(stdout, "JPWL correction capability activated\n");
 420                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
 421                         }
 422                         break;
 423 #endif /* USE_JPWL */
 424 /* <<UniPG */
 425
 426                                 /* ----------------------------------------------------- */
 427
 428                         default:
 429                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
 430                                 break;
 431                 }
 432         }
 433
 434         /* check for possible errors */
 435         if(img_fol->set_imgdir==1){
 436                 if(!(parameters->infile[0]==0)){
 437                         fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
 438                         return 1;
 439                 }
 440                 if(img_fol->set_out_format == 0){
 441                         fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
 442                         fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW!!\n");
 443                         return 1;
 444                 }
 445                 if(!((parameters->outfile[0] == 0))){
 446                         fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
 447                         return 1;
 448                 }
 449         }else{
 450                 if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
 451                         fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
 452                         fprintf(stderr, "Error: When using -i, -o must be used\n");
 453                         fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw(+ options)\n");
 454                         return 1;
 455                 }
 456         }
 457
 458         return 0;
 459 }
 460
 461 /* -------------------------------------------------------------------------- */
 462
 463 /**
 464 sample error callback expecting a FILE* client object
 465 */
 466 void error_callback(const char *msg, void *client_data) {
 467         FILE *stream = (FILE*)client_data;
 468         fprintf(stream, "[ERROR] %s", msg);
 469 }
 470 /**
 471 sample warning callback expecting a FILE* client object
 472 */
 473 void warning_callback(const char *msg, void *client_data) {
 474         FILE *stream = (FILE*)client_data;
 475         fprintf(stream, "[WARNING] %s", msg);
 476 }
 477 /**
 478 sample debug callback expecting no client object
 479 */
 480 void info_callback(const char *msg, void *client_data) {
 481         (void)client_data;
 482         fprintf(stdout, "[INFO] %s", msg);
 483 }
 484
 485 /* -------------------------------------------------------------------------- */
 486
 487 int main(int argc, char **argv) {
 488         opj_dparameters_t parameters;   /* decompression parameters */
 489         img_fol_t img_fol;
 490         opj_event_mgr_t event_mgr;              /* event manager */
 491         opj_image_t *image = NULL;
 492         FILE *fsrc = NULL;
 493         unsigned char *src = NULL;
 494         int file_length;
 495         int num_images;
 496         int i,imageno;
 497         dircnt_t *dirptr;
 498         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
 499         opj_cio_t *cio = NULL;
 500
 501         /* configure the event callbacks (not required) */
 502         memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
 503         event_mgr.error_handler = error_callback;
 504         event_mgr.warning_handler = warning_callback;
 505         event_mgr.info_handler = info_callback;
 506
 507         /* set decoding parameters to default values */
 508         opj_set_default_decoder_parameters(&parameters);
 509
 510
 511         /* parse input and get user encoding parameters */
 512         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {
 513                 return 0;
 514         }
 515
 516         if(img_fol.set_imgdir==1){
 517                 num_images=get_num_images(img_fol.imgdirpath);
 518
 519                 dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
 520                 if(dirptr){
 521                         dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
 522                         dirptr->filename = (char**) malloc(num_images*sizeof(char*));
 523
 524                         if(!dirptr->filename_buf){
 525                                 return 0;
 526                         }
 527                         for(i=0;i<num_images;i++){
 528                                 dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
 529                         }
 530                 }
 531                 if(load_images(dirptr,img_fol.imgdirpath)==1){
 532                         return 0;
 533                 }
 534                 if (num_images==0){
 535                         fprintf(stdout,"Folder is empty\n");
 536                         return 0;
 537                 }
 538         }else{
 539                 num_images=1;
 540         }
 541
 542         /*Encoding image one by one*/
 543         for(imageno = 0; imageno < num_images ; imageno++)
 544         {
 545
 546                 image = NULL;
 547                 fprintf(stderr,"\n");
 548
 549                 if(img_fol.set_imgdir==1){
 550                         if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
 551                                 fprintf(stderr,"skipping file...\n");
 552                                 continue;
 553                         }
 554
 555                 }
 556
 557
 558                 /* read the input file and put it in memory */
 559                 /* ---------------------------------------- */
 560                 fsrc = fopen(parameters.infile, "rb");
 561                 if (!fsrc) {
 562                         fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
 563                         return 1;
 564                 }
 565                 fseek(fsrc, 0, SEEK_END);
 566                 file_length = ftell(fsrc);
 567                 fseek(fsrc, 0, SEEK_SET);
 568                 src = (unsigned char *) malloc(file_length);
 569                 fread(src, 1, file_length, fsrc);
 570                 fclose(fsrc);
 571
 572
 573
 574                 /* decode the code-stream */
 575                 /* ---------------------- */
 576
 577                 switch(parameters.decod_format) {
 578                 case J2K_CFMT:
 579                 {
 580                         /* JPEG-2000 codestream */
 581
 582                         /* get a decoder handle */
 583                         dinfo = opj_create_decompress(CODEC_J2K);
 584
 585                         /* catch events using our callbacks and give a local context */
 586                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 587
 588                         /* setup the decoder decoding parameters using user parameters */
 589                         opj_setup_decoder(dinfo, &parameters);
 590
 591                         /* open a byte stream */
 592                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 593
 594                         /* decode the stream and fill the image structure */
 595                         image = opj_decode(dinfo, cio);
 596                         if(!image) {
 597                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 598                                 opj_destroy_decompress(dinfo);
 599                                 opj_cio_close(cio);
 600                                 return 1;
 601                         }
 602
 603                         /* close the byte stream */
 604                         opj_cio_close(cio);
 605                 }
 606                 break;
 607
 608                 case JP2_CFMT:
 609                 {
 610                         /* JPEG 2000 compressed image data */
 611
 612                         /* get a decoder handle */
 613                         dinfo = opj_create_decompress(CODEC_JP2);
 614
 615                         /* catch events using our callbacks and give a local context */
 616                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 617
 618                         /* setup the decoder decoding parameters using the current image and user parameters */
 619                         opj_setup_decoder(dinfo, &parameters);
 620
 621                         /* open a byte stream */
 622                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 623
 624                         /* decode the stream and fill the image structure */
 625                         image = opj_decode(dinfo, cio);
 626                         if(!image) {
 627                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 628                                 opj_destroy_decompress(dinfo);
 629                                 opj_cio_close(cio);
 630                                 return 1;
 631                         }
 632
 633                         /* close the byte stream */
 634                         opj_cio_close(cio);
 635
 636                 }
 637                 break;
 638
 639                 case JPT_CFMT:
 640                 {
 641                         /* JPEG 2000, JPIP */
 642
 643                         /* get a decoder handle */
 644                         dinfo = opj_create_decompress(CODEC_JPT);
 645
 646                         /* catch events using our callbacks and give a local context */
 647                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 648
 649                         /* setup the decoder decoding parameters using user parameters */
 650                         opj_setup_decoder(dinfo, &parameters);
 651
 652                         /* open a byte stream */
 653                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 654
 655                         /* decode the stream and fill the image structure */
 656                         image = opj_decode(dinfo, cio);
 657                         if(!image) {
 658                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 659                                 opj_destroy_decompress(dinfo);
 660                                 opj_cio_close(cio);
 661                                 return 1;
 662                         }
 663
 664                         /* close the byte stream */
 665                         opj_cio_close(cio);
 666                 }
 667                 break;
 668
 669                 default:
 670                         fprintf(stderr, "skipping file..\n");
 671                         continue;
 672         }
 673
 674                 /* free the memory containing the code-stream */
 675                 free(src);
 676                 src = NULL;
 677
 678                 /* create output image */
 679                 /* ------------------- */
 680                 switch (parameters.cod_format) {
 681                 case PXM_DFMT:                  /* PNM PGM PPM */
 682                         if (imagetopnm(image, parameters.outfile)) {
 683                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 684                         }
 685                         else {
 686                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 687                         }
 688                         break;
 689
 690                 case PGX_DFMT:                  /* PGX */
 691                         if(imagetopgx(image, parameters.outfile)){
 692                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 693                         }
 694                         else {
 695                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 696                         }
 697                         break;
 698
 699                 case BMP_DFMT:                  /* BMP */
 700                         if(imagetobmp(image, parameters.outfile)){
 701                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 702                         }
 703                         else {
 704                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 705                         }
 706                         break;
 707
 708                 case TIF_DFMT:                  /* TIFF */
 709                         if(imagetotif(image, parameters.outfile)){
 710                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 711                         }
 712                         else {
 713                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 714                         }
 715                         break;
 716
 717                 case RAW_DFMT:                  /* RAW */
 718                         if(imagetoraw(image, parameters.outfile)){
 719                                 fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
 720                         }
 721                         else {
 722                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 723                         }
 724                         break;
 725                 }
 726
 727                 /* free remaining structures */
 728                 if(dinfo) {
 729                         opj_destroy_decompress(dinfo);
 730                 }
 731                 /* free image data structure */
 732                 opj_image_destroy(image);
 733
 734         }
 735         return 0;
 736 }
 737 //end main
 738