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