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 #define TGA_DFMT 16
  59
  60 /* ----------------------------------------------------------------------- */
  61
  62 typedef struct dircnt{
  63         /** Buffer for holding images read from Directory*/
  64         char *filename_buf;
  65         /** Pointer to the buffer*/
  66         char **filename;
  67 }dircnt_t;
  68
  69
  70 typedef struct img_folder{
  71         /** The directory path of the folder containing input images*/
  72         char *imgdirpath;
  73         /** Output format*/
  74         char *out_format;
  75         /** Enable option*/
  76         char set_imgdir;
  77         /** Enable Cod Format for output*/
  78         char set_out_format;
  79
  80 }img_fol_t;
  81
  82 void decode_help_display() {
  83         fprintf(stdout,"HELP\n----\n\n");
  84         fprintf(stdout,"- the -h option displays this help information on screen\n\n");
  85
  86 /* UniPG>> */
  87         fprintf(stdout,"List of parameters for the JPEG 2000 "
  88 #ifdef USE_JPWL
  89                 "+ JPWL "
  90 #endif /* USE_JPWL */
  91                 "decoder:\n");
  92 /* <<UniPG */
  93         fprintf(stdout,"\n");
  94         fprintf(stdout,"\n");
  95         fprintf(stdout,"  -ImgDir \n");
  96         fprintf(stdout,"        Image file Directory path \n");
  97         fprintf(stdout,"  -OutFor \n");
  98         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
  99         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
 100         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
 101         fprintf(stdout,"  -i <compressed file>\n");
 102         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
 103         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
 104         fprintf(stdout,"    is identified based on its suffix.\n");
 105         fprintf(stdout,"  -o <decompressed file>\n");
 106         fprintf(stdout,"    REQUIRED\n");
 107         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
 108         fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
 109         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
 110         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
 111         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
 112         fprintf(stdout,"    is given and there are more than one component, only the first component\n");
 113         fprintf(stdout,"    will be written to the file.\n");
 114         fprintf(stdout,"  -r <reduce factor>\n");
 115         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
 116         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
 117         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
 118         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
 119         fprintf(stdout,"  -l <number of quality layers to decode>\n");
 120         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
 121         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
 122         fprintf(stdout,"    are decoded.\n");
 123 /* UniPG>> */
 124 #ifdef USE_JPWL
 125         fprintf(stdout,"  -W <options>\n");
 126         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
 127         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
 128         fprintf(stdout,"    c, c=numcomps\n");
 129         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
 130         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
 131 #endif /* USE_JPWL */
 132 /* <<UniPG */
 133         fprintf(stdout,"\n");
 134 }
 135
 136 /* -------------------------------------------------------------------------- */
 137
 138 int get_num_images(char *imgdirpath){
 139         DIR *dir;
 140         struct dirent* content;
 141         int num_images = 0;
 142
 143         /*Reading the input images from given input directory*/
 144
 145         dir= opendir(imgdirpath);
 146         if(!dir){
 147                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 148                 return 0;
 149         }
 150
 151         while((content=readdir(dir))!=NULL){
 152                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 153                         continue;
 154                 num_images++;
 155         }
 156         return num_images;
 157 }
 158
 159 int load_images(dircnt_t *dirptr, char *imgdirpath){
 160         DIR *dir;
 161         struct dirent* content;
 162         int i = 0;
 163
 164         /*Reading the input images from given input directory*/
 165
 166         dir= opendir(imgdirpath);
 167         if(!dir){
 168                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 169                 return 1;
 170         }else   {
 171                 fprintf(stderr,"Folder opened successfully\n");
 172         }
 173
 174         while((content=readdir(dir))!=NULL){
 175                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 176                         continue;
 177
 178                 strcpy(dirptr->filename[i],content->d_name);
 179                 i++;
 180         }
 181         return 0;
 182 }
 183
 184 int get_file_format(char *filename) {
 185         unsigned int i;
 186         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
 187         static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };
 188         char * ext = strrchr(filename, '.');
 189         if (ext == NULL)
 190                 return -1;
 191         ext++;
 192         if(ext) {
 193                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
 194                         if(strnicmp(ext, extension[i], 3) == 0) {
 195                                 return format[i];
 196                         }
 197                 }
 198         }
 199
 200         return -1;
 201 }
 202
 203 char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
 204         char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
 205
 206         strcpy(image_filename,dirptr->filename[imageno]);
 207         fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
 208         parameters->decod_format = get_file_format(image_filename);
 209         if (parameters->decod_format == -1)
 210                 return 1;
 211         sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
 212         strncpy(parameters->infile, infilename, sizeof(infilename));
 213
 214         //Set output file
 215         strcpy(temp_ofname,strtok(image_filename,"."));
 216         if(img_fol->set_out_format==1){
 217                 sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
 218                 strncpy(parameters->outfile, outfilename, sizeof(outfilename));
 219         }
 220         return 0;
 221 }
 222
 223
 224 /* -------------------------------------------------------------------------- */
 225
 226 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
 227         /* parse the command line */
 228         int totlen;
 229         option_t long_option[]={
 230                 {"ImgDir",REQ_ARG, NULL ,'y'},
 231                 {"OutFor",REQ_ARG, NULL ,'O'},
 232         };
 233
 234         const char optlist[] = "i:o:r:l:h"
 235
 236 /* UniPG>> */
 237 #ifdef USE_JPWL
 238                                         "W:"
 239 #endif /* USE_JPWL */
 240 /* <<UniPG */
 241                                         ;
 242         totlen=sizeof(long_option);
 243         img_fol->set_out_format = 0;
 244         while (1) {
 245                 int c = getopt_long(argc, argv,optlist,long_option,totlen);
 246                 if (c == -1)
 247                         break;
 248                 switch (c) {
 249                         case 'i':                       /* input file */
 250                         {
 251                                 char *infile = optarg;
 252                                 parameters->decod_format = get_file_format(infile);
 253                                 switch(parameters->decod_format) {
 254                                         case J2K_CFMT:
 255                                         case JP2_CFMT:
 256                                         case JPT_CFMT:
 257                                                 break;
 258                                         default:
 259                                                 fprintf(stderr,
 260                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
 261                                                         infile);
 262                                                 return 1;
 263                                 }
 264                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
 265                         }
 266                         break;
 267
 268                                 /* ----------------------------------------------------- */
 269
 270                         case 'o':                       /* output file */
 271                         {
 272                                 char *outfile = optarg;
 273                                 parameters->cod_format = get_file_format(outfile);
 274                                 switch(parameters->cod_format) {
 275                                         case PGX_DFMT:
 276                                         case PXM_DFMT:
 277                                         case BMP_DFMT:
 278                                         case TIF_DFMT:
 279                                         case RAW_DFMT:
 280                                         case TGA_DFMT:
 281                                                 break;
 282                                         default:
 283                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
 284                                                 return 1;
 285                                 }
 286                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
 287                         }
 288                         break;
 289
 290                                 /* ----------------------------------------------------- */
 291
 292                         case 'O':                       /* output format */
 293                         {
 294                                 char outformat[50];
 295                                 char *of = optarg;
 296                                 sprintf(outformat,".%s",of);
 297                                 img_fol->set_out_format = 1;
 298                                 parameters->cod_format = get_file_format(outformat);
 299                                 switch(parameters->cod_format) {
 300                                         case PGX_DFMT:
 301                                                 img_fol->out_format = "pgx";
 302                                                 break;
 303                                         case PXM_DFMT:
 304                                                 img_fol->out_format = "ppm";
 305                                                 break;
 306                                         case BMP_DFMT:
 307                                                 img_fol->out_format = "bmp";
 308                                                 break;
 309                                         case TIF_DFMT:
 310                                                 img_fol->out_format = "tif";
 311                                                 break;
 312                                         case RAW_DFMT:
 313                                                 img_fol->out_format = "raw";
 314                                                 break;
 315                                         case TGA_DFMT:
 316                                                 img_fol->out_format = "raw";
 317                                                 break;
 318                                         default:
 319                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
 320                                                 return 1;
 321                                                 break;
 322                                 }
 323                         }
 324                         break;
 325
 326                                 /* ----------------------------------------------------- */
 327
 328
 329                         case 'r':               /* reduce option */
 330                         {
 331                                 sscanf(optarg, "%d", &parameters->cp_reduce);
 332                         }
 333                         break;
 334
 335                                 /* ----------------------------------------------------- */
 336
 337
 338                         case 'l':               /* layering option */
 339                         {
 340                                 sscanf(optarg, "%d", &parameters->cp_layer);
 341                         }
 342                         break;
 343
 344                                 /* ----------------------------------------------------- */
 345
 346                         case 'h':                       /* display an help description */
 347                                 decode_help_display();
 348                                 return 1;
 349
 350                                 /* ------------------------------------------------------ */
 351
 352                         case 'y':                       /* Image Directory path */
 353                                 {
 354                                         img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
 355                                         strcpy(img_fol->imgdirpath,optarg);
 356                                         img_fol->set_imgdir=1;
 357                                 }
 358                                 break;
 359                                 /* ----------------------------------------------------- */
 360 /* UniPG>> */
 361 #ifdef USE_JPWL
 362
 363                         case 'W':                       /* activate JPWL correction */
 364                         {
 365                                 char *token = NULL;
 366
 367                                 token = strtok(optarg, ",");
 368                                 while(token != NULL) {
 369
 370                                         /* search expected number of components */
 371                                         if (*token == 'c') {
 372
 373                                                 static int compno;
 374
 375                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
 376
 377                                                 if(sscanf(token, "c=%d", &compno) == 1) {
 378                                                         /* Specified */
 379                                                         if ((compno < 1) || (compno > 256)) {
 380                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
 381                                                                 return 1;
 382                                                         }
 383                                                         parameters->jpwl_exp_comps = compno;
 384
 385                                                 } else if (!strcmp(token, "c")) {
 386                                                         /* default */
 387                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */
 388
 389                                                 } else {
 390                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
 391                                                         return 1;
 392                                                 };
 393                                         }
 394
 395                                         /* search maximum number of tiles */
 396                                         if (*token == 't') {
 397
 398                                                 static int tileno;
 399
 400                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
 401
 402                                                 if(sscanf(token, "t=%d", &tileno) == 1) {
 403                                                         /* Specified */
 404                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
 405                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
 406                                                                 return 1;
 407                                                         }
 408                                                         parameters->jpwl_max_tiles = tileno;
 409
 410                                                 } else if (!strcmp(token, "t")) {
 411                                                         /* default */
 412                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */
 413
 414                                                 } else {
 415                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
 416                                                         return 1;
 417                                                 };
 418                                         }
 419
 420                                         /* next token or bust */
 421                                         token = strtok(NULL, ",");
 422                                 };
 423                                 parameters->jpwl_correct = true;
 424                                 fprintf(stdout, "JPWL correction capability activated\n");
 425                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
 426                         }
 427                         break;
 428 #endif /* USE_JPWL */
 429 /* <<UniPG */
 430
 431                                 /* ----------------------------------------------------- */
 432
 433                         default:
 434                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
 435                                 break;
 436                 }
 437         }
 438
 439         /* check for possible errors */
 440         if(img_fol->set_imgdir==1){
 441                 if(!(parameters->infile[0]==0)){
 442                         fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
 443                         return 1;
 444                 }
 445                 if(img_fol->set_out_format == 0){
 446                         fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
 447                         fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
 448                         return 1;
 449                 }
 450                 if(!((parameters->outfile[0] == 0))){
 451                         fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
 452                         return 1;
 453                 }
 454         }else{
 455                 if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
 456                         fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
 457                         fprintf(stderr, "Error: When using -i, -o must be used\n");
 458                         fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
 459                         return 1;
 460                 }
 461         }
 462
 463         return 0;
 464 }
 465
 466 /* -------------------------------------------------------------------------- */
 467
 468 /**
 469 sample error callback expecting a FILE* client object
 470 */
 471 void error_callback(const char *msg, void *client_data) {
 472         FILE *stream = (FILE*)client_data;
 473         fprintf(stream, "[ERROR] %s", msg);
 474 }
 475 /**
 476 sample warning callback expecting a FILE* client object
 477 */
 478 void warning_callback(const char *msg, void *client_data) {
 479         FILE *stream = (FILE*)client_data;
 480         fprintf(stream, "[WARNING] %s", msg);
 481 }
 482 /**
 483 sample debug callback expecting no client object
 484 */
 485 void info_callback(const char *msg, void *client_data) {
 486         (void)client_data;
 487         fprintf(stdout, "[INFO] %s", msg);
 488 }
 489
 490 /* -------------------------------------------------------------------------- */
 491
 492 int main(int argc, char **argv) {
 493         opj_dparameters_t parameters;   /* decompression parameters */
 494         img_fol_t img_fol;
 495         opj_event_mgr_t event_mgr;              /* event manager */
 496         opj_image_t *image = NULL;
 497         FILE *fsrc = NULL;
 498         unsigned char *src = NULL;
 499         int file_length;
 500         int num_images;
 501         int i,imageno;
 502         dircnt_t *dirptr;
 503         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
 504         opj_cio_t *cio = NULL;
 505
 506         /* configure the event callbacks (not required) */
 507         memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
 508         event_mgr.error_handler = error_callback;
 509         event_mgr.warning_handler = warning_callback;
 510         event_mgr.info_handler = info_callback;
 511
 512         /* set decoding parameters to default values */
 513         opj_set_default_decoder_parameters(&parameters);
 514
 515
 516         /* parse input and get user encoding parameters */
 517         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {
 518                 return 0;
 519         }
 520
 521         if(img_fol.set_imgdir==1){
 522                 num_images=get_num_images(img_fol.imgdirpath);
 523
 524                 dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
 525                 if(dirptr){
 526                         dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
 527                         dirptr->filename = (char**) malloc(num_images*sizeof(char*));
 528
 529                         if(!dirptr->filename_buf){
 530                                 return 0;
 531                         }
 532                         for(i=0;i<num_images;i++){
 533                                 dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
 534                         }
 535                 }
 536                 if(load_images(dirptr,img_fol.imgdirpath)==1){
 537                         return 0;
 538                 }
 539                 if (num_images==0){
 540                         fprintf(stdout,"Folder is empty\n");
 541                         return 0;
 542                 }
 543         }else{
 544                 num_images=1;
 545         }
 546
 547         /*Encoding image one by one*/
 548         for(imageno = 0; imageno < num_images ; imageno++)
 549         {
 550
 551                 image = NULL;
 552                 fprintf(stderr,"\n");
 553
 554                 if(img_fol.set_imgdir==1){
 555                         if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
 556                                 fprintf(stderr,"skipping file...\n");
 557                                 continue;
 558                         }
 559
 560                 }
 561
 562
 563                 /* read the input file and put it in memory */
 564                 /* ---------------------------------------- */
 565                 fsrc = fopen(parameters.infile, "rb");
 566                 if (!fsrc) {
 567                         fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
 568                         return 1;
 569                 }
 570                 fseek(fsrc, 0, SEEK_END);
 571                 file_length = ftell(fsrc);
 572                 fseek(fsrc, 0, SEEK_SET);
 573                 src = (unsigned char *) malloc(file_length);
 574                 fread(src, 1, file_length, fsrc);
 575                 fclose(fsrc);
 576
 577
 578
 579                 /* decode the code-stream */
 580                 /* ---------------------- */
 581
 582                 switch(parameters.decod_format) {
 583                 case J2K_CFMT:
 584                 {
 585                         /* JPEG-2000 codestream */
 586
 587                         /* get a decoder handle */
 588                         dinfo = opj_create_decompress(CODEC_J2K);
 589
 590                         /* catch events using our callbacks and give a local context */
 591                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 592
 593                         /* setup the decoder decoding parameters using user parameters */
 594                         opj_setup_decoder(dinfo, &parameters);
 595
 596                         /* open a byte stream */
 597                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 598
 599                         /* decode the stream and fill the image structure */
 600                         image = opj_decode(dinfo, cio);
 601                         if(!image) {
 602                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 603                                 opj_destroy_decompress(dinfo);
 604                                 opj_cio_close(cio);
 605                                 return 1;
 606                         }
 607
 608                         /* close the byte stream */
 609                         opj_cio_close(cio);
 610                 }
 611                 break;
 612
 613                 case JP2_CFMT:
 614                 {
 615                         /* JPEG 2000 compressed image data */
 616
 617                         /* get a decoder handle */
 618                         dinfo = opj_create_decompress(CODEC_JP2);
 619
 620                         /* catch events using our callbacks and give a local context */
 621                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 622
 623                         /* setup the decoder decoding parameters using the current image and user parameters */
 624                         opj_setup_decoder(dinfo, &parameters);
 625
 626                         /* open a byte stream */
 627                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 628
 629                         /* decode the stream and fill the image structure */
 630                         image = opj_decode(dinfo, cio);
 631                         if(!image) {
 632                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 633                                 opj_destroy_decompress(dinfo);
 634                                 opj_cio_close(cio);
 635                                 return 1;
 636                         }
 637
 638                         /* close the byte stream */
 639                         opj_cio_close(cio);
 640
 641                 }
 642                 break;
 643
 644                 case JPT_CFMT:
 645                 {
 646                         /* JPEG 2000, JPIP */
 647
 648                         /* get a decoder handle */
 649                         dinfo = opj_create_decompress(CODEC_JPT);
 650
 651                         /* catch events using our callbacks and give a local context */
 652                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 653
 654                         /* setup the decoder decoding parameters using user parameters */
 655                         opj_setup_decoder(dinfo, &parameters);
 656
 657                         /* open a byte stream */
 658                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 659
 660                         /* decode the stream and fill the image structure */
 661                         image = opj_decode(dinfo, cio);
 662                         if(!image) {
 663                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 664                                 opj_destroy_decompress(dinfo);
 665                                 opj_cio_close(cio);
 666                                 return 1;
 667                         }
 668
 669                         /* close the byte stream */
 670                         opj_cio_close(cio);
 671                 }
 672                 break;
 673
 674                 default:
 675                         fprintf(stderr, "skipping file..\n");
 676                         continue;
 677         }
 678
 679                 /* free the memory containing the code-stream */
 680                 free(src);
 681                 src = NULL;
 682
 683                 /* create output image */
 684                 /* ------------------- */
 685                 switch (parameters.cod_format) {
 686                 case PXM_DFMT:                  /* PNM PGM PPM */
 687                         if (imagetopnm(image, parameters.outfile)) {
 688                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 689                         }
 690                         else {
 691                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 692                         }
 693                         break;
 694
 695                 case PGX_DFMT:                  /* PGX */
 696                         if(imagetopgx(image, parameters.outfile)){
 697                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 698                         }
 699                         else {
 700                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 701                         }
 702                         break;
 703
 704                 case BMP_DFMT:                  /* BMP */
 705                         if(imagetobmp(image, parameters.outfile)){
 706                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 707                         }
 708                         else {
 709                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 710                         }
 711                         break;
 712
 713                 case TIF_DFMT:                  /* TIFF */
 714                         if(imagetotif(image, parameters.outfile)){
 715                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 716                         }
 717                         else {
 718                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 719                         }
 720                         break;
 721
 722                 case RAW_DFMT:                  /* RAW */
 723                         if(imagetoraw(image, parameters.outfile)){
 724                                 fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
 725                         }
 726                         else {
 727                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 728                         }
 729                         break;
 730
 731                 case TGA_DFMT:                  /* TGA */
 732                         if(imagetotga(image, parameters.outfile)){
 733                                 fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
 734                         }
 735                         else {
 736                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 737                         }
 738                         break;
 739                 }
 740
 741                 /* free remaining structures */
 742                 if(dinfo) {
 743                         opj_destroy_decompress(dinfo);
 744                 }
 745                 /* free image data structure */
 746                 opj_image_destroy(image);
 747
 748         }
 749         return 0;
 750 }
 751 //end main
 752