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 #include <math.h>
  36
  37 #include "openjpeg.h"
  38 #include "compat/getopt.h"
  39 #include "convert.h"
  40 #include "dirent.h"
  41 #include "index.h"
  42
  43 #ifndef WIN32
  44 #define stricmp strcasecmp
  45 #define strnicmp strncasecmp
  46 #endif
  47
  48 /* ----------------------------------------------------------------------- */
  49
  50 #define J2K_CFMT 0
  51 #define JP2_CFMT 1
  52 #define JPT_CFMT 2
  53
  54 #define PXM_DFMT 10
  55 #define PGX_DFMT 11
  56 #define BMP_DFMT 12
  57 #define YUV_DFMT 13
  58 #define TIF_DFMT 14
  59 #define RAW_DFMT 15
  60 #define TGA_DFMT 16
  61
  62 /* ----------------------------------------------------------------------- */
  63
  64 typedef struct dircnt{
  65         /** Buffer for holding images read from Directory*/
  66         char *filename_buf;
  67         /** Pointer to the buffer*/
  68         char **filename;
  69 }dircnt_t;
  70
  71
  72 typedef struct img_folder{
  73         /** The directory path of the folder containing input images*/
  74         char *imgdirpath;
  75         /** Output format*/
  76         char *out_format;
  77         /** Enable option*/
  78         char set_imgdir;
  79         /** Enable Cod Format for output*/
  80         char set_out_format;
  81
  82 }img_fol_t;
  83
  84 void decode_help_display() {
  85         fprintf(stdout,"HELP\n----\n\n");
  86         fprintf(stdout,"- the -h option displays this help information on screen\n\n");
  87
  88 /* UniPG>> */
  89         fprintf(stdout,"List of parameters for the JPEG 2000 "
  90 #ifdef USE_JPWL
  91                 "+ JPWL "
  92 #endif /* USE_JPWL */
  93                 "decoder:\n");
  94 /* <<UniPG */
  95         fprintf(stdout,"\n");
  96         fprintf(stdout,"\n");
  97         fprintf(stdout,"  -ImgDir \n");
  98         fprintf(stdout,"        Image file Directory path \n");
  99         fprintf(stdout,"  -OutFor \n");
 100         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");
 101         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");
 102         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
 103         fprintf(stdout,"  -i <compressed file>\n");
 104         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");
 105         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
 106         fprintf(stdout,"    is identified based on its suffix.\n");
 107         fprintf(stdout,"  -o <decompressed file>\n");
 108         fprintf(stdout,"    REQUIRED\n");
 109         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
 110         fprintf(stdout,"    Binary data is written to the file (not ascii). If a PGX\n");
 111         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");
 112         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");
 113         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");
 114         fprintf(stdout,"    is given and there are more than one component, only the first component\n");
 115         fprintf(stdout,"    will be written to the file.\n");
 116         fprintf(stdout,"  -r <reduce factor>\n");
 117         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");
 118         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");
 119         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");
 120         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");
 121         fprintf(stdout,"  -l <number of quality layers to decode>\n");
 122         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");
 123         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");
 124         fprintf(stdout,"    are decoded.\n");
 125         fprintf(stdout,"  -x  \n");
 126         fprintf(stdout,"    Create an index file *.Idx (-x index_name.Idx) \n");
 127         fprintf(stdout,"\n");
 128 /* UniPG>> */
 129 #ifdef USE_JPWL
 130         fprintf(stdout,"  -W <options>\n");
 131         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");
 132         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");
 133         fprintf(stdout,"    c, c=numcomps\n");
 134         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");
 135         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
 136 #endif /* USE_JPWL */
 137 /* <<UniPG */
 138         fprintf(stdout,"\n");
 139 }
 140
 141 /* -------------------------------------------------------------------------- */
 142
 143 int get_num_images(char *imgdirpath){
 144         DIR *dir;
 145         struct dirent* content;
 146         int num_images = 0;
 147
 148         /*Reading the input images from given input directory*/
 149
 150         dir= opendir(imgdirpath);
 151         if(!dir){
 152                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 153                 return 0;
 154         }
 155
 156         while((content=readdir(dir))!=NULL){
 157                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 158                         continue;
 159                 num_images++;
 160         }
 161         return num_images;
 162 }
 163
 164 int load_images(dircnt_t *dirptr, char *imgdirpath){
 165         DIR *dir;
 166         struct dirent* content;
 167         int i = 0;
 168
 169         /*Reading the input images from given input directory*/
 170
 171         dir= opendir(imgdirpath);
 172         if(!dir){
 173                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
 174                 return 1;
 175         }else   {
 176                 fprintf(stderr,"Folder opened successfully\n");
 177         }
 178
 179         while((content=readdir(dir))!=NULL){
 180                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
 181                         continue;
 182
 183                 strcpy(dirptr->filename[i],content->d_name);
 184                 i++;
 185         }
 186         return 0;
 187 }
 188
 189 int get_file_format(char *filename) {
 190         unsigned int i;
 191         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
 192         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 };
 193         char * ext = strrchr(filename, '.');
 194         if (ext == NULL)
 195                 return -1;
 196         ext++;
 197         if(ext) {
 198                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
 199                         if(strnicmp(ext, extension[i], 3) == 0) {
 200                                 return format[i];
 201                         }
 202                 }
 203         }
 204
 205         return -1;
 206 }
 207
 208 char get_next_file(int imageno,dircnt_t *dirptr,img_fol_t *img_fol, opj_dparameters_t *parameters){
 209         char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],outfilename[OPJ_PATH_LEN],temp_ofname[OPJ_PATH_LEN];
 210         char *temp_p, temp1[OPJ_PATH_LEN]="";
 211
 212         strcpy(image_filename,dirptr->filename[imageno]);
 213         fprintf(stderr,"File Number %d \"%s\"\n",imageno,image_filename);
 214         parameters->decod_format = get_file_format(image_filename);
 215         if (parameters->decod_format == -1)
 216                 return 1;
 217         sprintf(infilename,"%s/%s",img_fol->imgdirpath,image_filename);
 218         strncpy(parameters->infile, infilename, sizeof(infilename));
 219
 220         //Set output file
 221         strcpy(temp_ofname,strtok(image_filename,"."));
 222         while((temp_p = strtok(NULL,".")) != NULL){
 223                 strcat(temp_ofname,temp1);
 224                 sprintf(temp1,".%s",temp_p);
 225         }
 226         if(img_fol->set_out_format==1){
 227                 sprintf(outfilename,"%s/%s.%s",img_fol->imgdirpath,temp_ofname,img_fol->out_format);
 228                 strncpy(parameters->outfile, outfilename, sizeof(outfilename));
 229         }
 230         return 0;
 231 }
 232
 233 /* -------------------------------------------------------------------------- */
 234 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol, char *indexfilename) {
 235         /* parse the command line */
 236         int totlen;
 237         option_t long_option[]={
 238                 {"ImgDir",REQ_ARG, NULL ,'y'},
 239                 {"OutFor",REQ_ARG, NULL ,'O'},
 240         };
 241
 242         const char optlist[] = "i:o:r:l:hx:"
 243
 244 /* UniPG>> */
 245 #ifdef USE_JPWL
 246                                         "W:"
 247 #endif /* USE_JPWL */
 248 /* <<UniPG */
 249                                         ;
 250         totlen=sizeof(long_option);
 251         img_fol->set_out_format = 0;
 252         while (1) {
 253                 int c = getopt_long(argc, argv,optlist,long_option,totlen);
 254                 if (c == -1)
 255                         break;
 256                 switch (c) {
 257                         case 'i':                       /* input file */
 258                         {
 259                                 char *infile = optarg;
 260                                 parameters->decod_format = get_file_format(infile);
 261                                 switch(parameters->decod_format) {
 262                                         case J2K_CFMT:
 263                                         case JP2_CFMT:
 264                                         case JPT_CFMT:
 265                                                 break;
 266                                         default:
 267                                                 fprintf(stderr,
 268                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
 269                                                         infile);
 270                                                 return 1;
 271                                 }
 272                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
 273                         }
 274                         break;
 275
 276                                 /* ----------------------------------------------------- */
 277
 278                         case 'o':                       /* output file */
 279                         {
 280                                 char *outfile = optarg;
 281                                 parameters->cod_format = get_file_format(outfile);
 282                                 switch(parameters->cod_format) {
 283                                         case PGX_DFMT:
 284                                         case PXM_DFMT:
 285                                         case BMP_DFMT:
 286                                         case TIF_DFMT:
 287                                         case RAW_DFMT:
 288                                         case TGA_DFMT:
 289                                                 break;
 290                                         default:
 291                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
 292                                                 return 1;
 293                                 }
 294                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
 295                         }
 296                         break;
 297
 298                                 /* ----------------------------------------------------- */
 299
 300                         case 'O':                       /* output format */
 301                         {
 302                                 char outformat[50];
 303                                 char *of = optarg;
 304                                 sprintf(outformat,".%s",of);
 305                                 img_fol->set_out_format = 1;
 306                                 parameters->cod_format = get_file_format(outformat);
 307                                 switch(parameters->cod_format) {
 308                                         case PGX_DFMT:
 309                                                 img_fol->out_format = "pgx";
 310                                                 break;
 311                                         case PXM_DFMT:
 312                                                 img_fol->out_format = "ppm";
 313                                                 break;
 314                                         case BMP_DFMT:
 315                                                 img_fol->out_format = "bmp";
 316                                                 break;
 317                                         case TIF_DFMT:
 318                                                 img_fol->out_format = "tif";
 319                                                 break;
 320                                         case RAW_DFMT:
 321                                                 img_fol->out_format = "raw";
 322                                                 break;
 323                                         case TGA_DFMT:
 324                                                 img_fol->out_format = "raw";
 325                                                 break;
 326                                         default:
 327                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
 328                                                 return 1;
 329                                                 break;
 330                                 }
 331                         }
 332                         break;
 333
 334                                 /* ----------------------------------------------------- */
 335
 336
 337                         case 'r':               /* reduce option */
 338                         {
 339                                 sscanf(optarg, "%d", &parameters->cp_reduce);
 340                         }
 341                         break;
 342
 343                                 /* ----------------------------------------------------- */
 344
 345
 346                         case 'l':               /* layering option */
 347                         {
 348                                 sscanf(optarg, "%d", &parameters->cp_layer);
 349                         }
 350                         break;
 351
 352                                 /* ----------------------------------------------------- */
 353
 354                         case 'h':                       /* display an help description */
 355                                 decode_help_display();
 356                                 return 1;
 357
 358                                 /* ------------------------------------------------------ */
 359
 360                         case 'y':                       /* Image Directory path */
 361                                 {
 362                                         img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
 363                                         strcpy(img_fol->imgdirpath,optarg);
 364                                         img_fol->set_imgdir=1;
 365                                 }
 366                                 break;
 367                                 /* ----------------------------------------------------- */
 368                         case 'x':                       /* Creation of index file */
 369                                 {
 370                                         char *index = optarg;
 371                                         strncpy(indexfilename, index, OPJ_PATH_LEN);
 372                                 }
 373                                 break;
 374                                 /* ----------------------------------------------------- */
 375                                 /* UniPG>> */
 376 #ifdef USE_JPWL
 377
 378                         case 'W':                       /* activate JPWL correction */
 379                         {
 380                                 char *token = NULL;
 381
 382                                 token = strtok(optarg, ",");
 383                                 while(token != NULL) {
 384
 385                                         /* search expected number of components */
 386                                         if (*token == 'c') {
 387
 388                                                 static int compno;
 389
 390                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
 391
 392                                                 if(sscanf(token, "c=%d", &compno) == 1) {
 393                                                         /* Specified */
 394                                                         if ((compno < 1) || (compno > 256)) {
 395                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
 396                                                                 return 1;
 397                                                         }
 398                                                         parameters->jpwl_exp_comps = compno;
 399
 400                                                 } else if (!strcmp(token, "c")) {
 401                                                         /* default */
 402                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */
 403
 404                                                 } else {
 405                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
 406                                                         return 1;
 407                                                 };
 408                                         }
 409
 410                                         /* search maximum number of tiles */
 411                                         if (*token == 't') {
 412
 413                                                 static int tileno;
 414
 415                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
 416
 417                                                 if(sscanf(token, "t=%d", &tileno) == 1) {
 418                                                         /* Specified */
 419                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
 420                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
 421                                                                 return 1;
 422                                                         }
 423                                                         parameters->jpwl_max_tiles = tileno;
 424
 425                                                 } else if (!strcmp(token, "t")) {
 426                                                         /* default */
 427                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */
 428
 429                                                 } else {
 430                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
 431                                                         return 1;
 432                                                 };
 433                                         }
 434
 435                                         /* next token or bust */
 436                                         token = strtok(NULL, ",");
 437                                 };
 438                                 parameters->jpwl_correct = true;
 439                                 fprintf(stdout, "JPWL correction capability activated\n");
 440                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
 441                         }
 442                         break;
 443 #endif /* USE_JPWL */
 444 /* <<UniPG */
 445
 446                                 /* ----------------------------------------------------- */
 447
 448                         default:
 449                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
 450                                 break;
 451                 }
 452         }
 453
 454         /* check for possible errors */
 455         if(img_fol->set_imgdir==1){
 456                 if(!(parameters->infile[0]==0)){
 457                         fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
 458                         return 1;
 459                 }
 460                 if(img_fol->set_out_format == 0){
 461                         fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
 462                         fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
 463                         return 1;
 464                 }
 465                 if(!((parameters->outfile[0] == 0))){
 466                         fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
 467                         return 1;
 468                 }
 469         }else{
 470                 if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
 471                         fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
 472                         fprintf(stderr, "Error: When using -i, -o must be used\n");
 473                         fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
 474                         return 1;
 475                 }
 476         }
 477
 478         return 0;
 479 }
 480
 481 /* -------------------------------------------------------------------------- */
 482
 483 /**
 484 sample error callback expecting a FILE* client object
 485 */
 486 void error_callback(const char *msg, void *client_data) {
 487         FILE *stream = (FILE*)client_data;
 488         fprintf(stream, "[ERROR] %s", msg);
 489 }
 490 /**
 491 sample warning callback expecting a FILE* client object
 492 */
 493 void warning_callback(const char *msg, void *client_data) {
 494         FILE *stream = (FILE*)client_data;
 495         fprintf(stream, "[WARNING] %s", msg);
 496 }
 497 /**
 498 sample debug callback expecting no client object
 499 */
 500 void info_callback(const char *msg, void *client_data) {
 501         (void)client_data;
 502         fprintf(stdout, "[INFO] %s", msg);
 503 }
 504
 505 /* -------------------------------------------------------------------------- */
 506
 507 int main(int argc, char **argv) {
 508         opj_dparameters_t parameters;   /* decompression parameters */
 509         img_fol_t img_fol;
 510         opj_event_mgr_t event_mgr;              /* event manager */
 511         opj_image_t *image = NULL;
 512         FILE *fsrc = NULL;
 513         unsigned char *src = NULL;
 514         int file_length;
 515         int num_images;
 516         int i,imageno;
 517         dircnt_t *dirptr;
 518         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */
 519         opj_cio_t *cio = NULL;
 520         opj_codestream_info_t cstr_info;  /* Codestream information structure */
 521         char indexfilename[OPJ_PATH_LEN];       /* index file name */
 522
 523         /* configure the event callbacks (not required) */
 524         memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
 525         event_mgr.error_handler = error_callback;
 526         event_mgr.warning_handler = warning_callback;
 527         event_mgr.info_handler = info_callback;
 528
 529         /* set decoding parameters to default values */
 530         opj_set_default_decoder_parameters(&parameters);
 531
 532         /* Initialize indexfilename and img_fol */
 533         *indexfilename = 0;
 534         memset(&img_fol,0,sizeof(img_fol_t));
 535
 536         /* parse input and get user encoding parameters */
 537         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol, indexfilename) == 1) {
 538                 return 1;
 539         }
 540
 541         /* Initialize reading of directory */
 542         if(img_fol.set_imgdir==1){
 543                 num_images=get_num_images(img_fol.imgdirpath);
 544
 545                 dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
 546                 if(dirptr){
 547                         dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char));     // Stores at max 10 image file names
 548                         dirptr->filename = (char**) malloc(num_images*sizeof(char*));
 549
 550                         if(!dirptr->filename_buf){
 551                                 return 0;
 552                         }
 553                         for(i=0;i<num_images;i++){
 554                                 dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
 555                         }
 556                 }
 557                 if(load_images(dirptr,img_fol.imgdirpath)==1){
 558                         return 0;
 559                 }
 560                 if (num_images==0){
 561                         fprintf(stdout,"Folder is empty\n");
 562                         return 0;
 563                 }
 564         }else{
 565                 num_images=1;
 566         }
 567
 568         /*Encoding image one by one*/
 569         for(imageno = 0; imageno < num_images ; imageno++)      {
 570                 image = NULL;
 571                 fprintf(stderr,"\n");
 572
 573                 if(img_fol.set_imgdir==1){
 574                         if (get_next_file(imageno, dirptr,&img_fol, &parameters)) {
 575                                 fprintf(stderr,"skipping file...\n");
 576                                 continue;
 577                         }
 578                 }
 579
 580                 /* read the input file and put it in memory */
 581                 /* ---------------------------------------- */
 582                 fsrc = fopen(parameters.infile, "rb");
 583                 if (!fsrc) {
 584                         fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
 585                         return 1;
 586                 }
 587                 fseek(fsrc, 0, SEEK_END);
 588                 file_length = ftell(fsrc);
 589                 fseek(fsrc, 0, SEEK_SET);
 590                 src = (unsigned char *) malloc(file_length);
 591                 fread(src, 1, file_length, fsrc);
 592                 fclose(fsrc);
 593
 594                 /* decode the code-stream */
 595                 /* ---------------------- */
 596
 597                 switch(parameters.decod_format) {
 598                 case J2K_CFMT:
 599                 {
 600                         /* JPEG-2000 codestream */
 601
 602                         /* get a decoder handle */
 603                         dinfo = opj_create_decompress(CODEC_J2K);
 604
 605                         /* catch events using our callbacks and give a local context */
 606                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 607
 608                         /* setup the decoder decoding parameters using user parameters */
 609                         opj_setup_decoder(dinfo, &parameters);
 610
 611                         /* open a byte stream */
 612                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 613
 614                         /* decode the stream and fill the image structure */
 615                         if (*indexfilename)                             // If need to extract codestream information
 616                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 617                         else
 618                                 image = opj_decode(dinfo, cio);
 619                         if(!image) {
 620                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 621                                 opj_destroy_decompress(dinfo);
 622                                 opj_cio_close(cio);
 623                                 return 1;
 624                         }
 625
 626                         /* close the byte stream */
 627                         opj_cio_close(cio);
 628
 629                         /* Write the index to disk */
 630                         if (*indexfilename) {
 631                                 char bSuccess;
 632                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 633                                 if (bSuccess) {
 634                                         fprintf(stderr, "Failed to output index file\n");
 635                                 }
 636                         }
 637                 }
 638                 break;
 639
 640                 case JP2_CFMT:
 641                 {
 642                         /* JPEG 2000 compressed image data */
 643
 644                         /* get a decoder handle */
 645                         dinfo = opj_create_decompress(CODEC_JP2);
 646
 647                         /* catch events using our callbacks and give a local context */
 648                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 649
 650                         /* setup the decoder decoding parameters using the current image and user parameters */
 651                         opj_setup_decoder(dinfo, &parameters);
 652
 653                         /* open a byte stream */
 654                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 655
 656                         /* decode the stream and fill the image structure */
 657                         if (*indexfilename)                             // If need to extract codestream information
 658                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 659                         else
 660                                 image = opj_decode(dinfo, cio);
 661                         if(!image) {
 662                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 663                                 opj_destroy_decompress(dinfo);
 664                                 opj_cio_close(cio);
 665                                 return 1;
 666                         }
 667
 668                         /* close the byte stream */
 669                         opj_cio_close(cio);
 670
 671                         /* Write the index to disk */
 672                         if (*indexfilename) {
 673                                 char bSuccess;
 674                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 675                                 if (bSuccess) {
 676                                         fprintf(stderr, "Failed to output index file\n");
 677                                 }
 678                         }
 679                 }
 680                 break;
 681
 682                 case JPT_CFMT:
 683                 {
 684                         /* JPEG 2000, JPIP */
 685
 686                         /* get a decoder handle */
 687                         dinfo = opj_create_decompress(CODEC_JPT);
 688
 689                         /* catch events using our callbacks and give a local context */
 690                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
 691
 692                         /* setup the decoder decoding parameters using user parameters */
 693                         opj_setup_decoder(dinfo, &parameters);
 694
 695                         /* open a byte stream */
 696                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
 697
 698                         /* decode the stream and fill the image structure */
 699                         if (*indexfilename)                             // If need to extract codestream information
 700                                 image = opj_decode_with_info(dinfo, cio, &cstr_info);
 701                         else
 702                                 image = opj_decode(dinfo, cio);
 703                         if(!image) {
 704                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
 705                                 opj_destroy_decompress(dinfo);
 706                                 opj_cio_close(cio);
 707                                 return 1;
 708                         }
 709
 710                         /* close the byte stream */
 711                         opj_cio_close(cio);
 712
 713                         /* Write the index to disk */
 714                         if (*indexfilename) {
 715                                 char bSuccess;
 716                                 bSuccess = write_index_file(&cstr_info, indexfilename);
 717                                 if (bSuccess) {
 718                                         fprintf(stderr, "Failed to output index file\n");
 719                                 }
 720                         }
 721                 }
 722                 break;
 723
 724                 default:
 725                         fprintf(stderr, "skipping file..\n");
 726                         continue;
 727         }
 728
 729                 /* free the memory containing the code-stream */
 730                 free(src);
 731                 src = NULL;
 732
 733                 /* create output image */
 734                 /* ------------------- */
 735                 switch (parameters.cod_format) {
 736                 case PXM_DFMT:                  /* PNM PGM PPM */
 737                         if (imagetopnm(image, parameters.outfile)) {
 738                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 739                         }
 740                         else {
 741                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 742                         }
 743                         break;
 744
 745                 case PGX_DFMT:                  /* PGX */
 746                         if(imagetopgx(image, parameters.outfile)){
 747                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 748                         }
 749                         else {
 750                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 751                         }
 752                         break;
 753
 754                 case BMP_DFMT:                  /* BMP */
 755                         if(imagetobmp(image, parameters.outfile)){
 756                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 757                         }
 758                         else {
 759                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 760                         }
 761                         break;
 762
 763                 case TIF_DFMT:                  /* TIFF */
 764                         if(imagetotif(image, parameters.outfile)){
 765                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
 766                         }
 767                         else {
 768                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
 769                         }
 770                         break;
 771
 772                 case RAW_DFMT:                  /* RAW */
 773                         if(imagetoraw(image, parameters.outfile)){
 774                                 fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
 775                         }
 776                         else {
 777                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 778                         }
 779                         break;
 780
 781                 case TGA_DFMT:                  /* TGA */
 782                         if(imagetotga(image, parameters.outfile)){
 783                                 fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
 784                         }
 785                         else {
 786                                 fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
 787                         }
 788                         break;
 789                 }
 790
 791                 /* free remaining structures */
 792                 if(dinfo) {
 793                         opj_destroy_decompress(dinfo);
 794                 }
 795                 /* free codestream information structure */
 796                 if (*indexfilename)
 797                         opj_destroy_cstr_info(&cstr_info);
 798                 /* free image data structure */
 799                 opj_image_destroy(image);
 800
 801         }
 802         return 0;
 803 }
 804 //end main
 805
 806
 807
 808