/*
 * The copyright in this software is being made available under the 2-clauses
 * BSD License, included below. This software may be subject to other third
 * party and contributor rights, including patent rights, and no such rights
 * are granted under this license.
 *
 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2014, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux
 * Copyright (c) 2003-2014, Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * Copyright (c) 2006-2007, Parvatha Elangovan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>

#ifdef _WIN32
#include "windirent.h"
#else
#include <dirent.h>
#endif /* _WIN32 */

#ifdef _WIN32
#include <windows.h>
#else
#include <strings.h>
#define _stricmp strcasecmp
#define _strnicmp strncasecmp
#endif /* _WIN32 */

#include "opj_apps_config.h"
#include "openjpeg.h"
#include "opj_getopt.h"
#include "convert.h"
#include "index.h"

#ifdef OPJ_HAVE_LIBLCMS2
#include <lcms2.h>
#endif
#ifdef OPJ_HAVE_LIBLCMS1
#include <lcms.h>
#endif
#include "color.h"

#include "format_defs.h"

typedef struct dircnt {
    /** Buffer for holding images read from Directory*/
    char *filename_buf;
    /** Pointer to the buffer*/
    char **filename;
} dircnt_t;


typedef struct img_folder {
    /** The directory path of the folder containing input images*/
    char *imgdirpath;
    /** Output format*/
    const char *out_format;
    /** Enable option*/
    char set_imgdir;
    /** Enable Cod Format for output*/
    char set_out_format;

} img_fol_t;

void decode_help_display(void)
{
    fprintf(stdout, "HELP for j2k_to_image\n----\n\n");
    fprintf(stdout, "- the -h option displays this help information on screen\n\n");

    /* UniPG>> */
    fprintf(stdout, "List of parameters for the JPEG 2000 "
#ifdef USE_JPWL
            "+ JPWL "
#endif /* USE_JPWL */
            "decoder:\n");
    /* <<UniPG */
    fprintf(stdout, "\n");
    fprintf(stdout, "\n");
    fprintf(stdout, "  -ImgDir \n");
    fprintf(stdout, "	Image file Directory path \n");
    fprintf(stdout, "  -OutFor \n");
    fprintf(stdout, "    REQUIRED only if -ImgDir is used\n");
    fprintf(stdout, "	  Need to specify only format without filename <BMP>  \n");
    fprintf(stdout,
            "    Currently accepts PGM, PPM, PNM, PGX, PNG, BMP, TIF, RAW and TGA formats\n");
    fprintf(stdout, "  -i <compressed file>\n");
    fprintf(stdout,
            "    REQUIRED only if an Input image directory not specified\n");
    fprintf(stdout,
            "    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
    fprintf(stdout, "    is identified based on its suffix.\n");
    fprintf(stdout, "  -o <decompressed file>\n");
    fprintf(stdout, "    REQUIRED\n");
    fprintf(stdout,
            "    Currently accepts PGM, PPM, PNM, PGX, PNG, BMP, TIF, RAW and TGA files\n");
    fprintf(stdout,
            "    Binary data is written to the file (not ascii). If a PGX\n");
    fprintf(stdout,
            "    filename is given, there will be as many output files as there are\n");
    fprintf(stdout,
            "    components: an indice starting from 0 will then be appended to the\n");
    fprintf(stdout,
            "    output filename, just before the \"pgx\" extension. If a PGM filename\n");
    fprintf(stdout,
            "    is given and there are more than one component, only the first component\n");
    fprintf(stdout, "    will be written to the file.\n");
    fprintf(stdout, "  -r <reduce factor>\n");
    fprintf(stdout,
            "    Set the number of highest resolution levels to be discarded. The\n");
    fprintf(stdout,
            "    image resolution is effectively divided by 2 to the power of the\n");
    fprintf(stdout,
            "    number of discarded levels. The reduce factor is limited by the\n");
    fprintf(stdout,
            "    smallest total number of decomposition levels among tiles.\n");
    fprintf(stdout, "  -l <number of quality layers to decode>\n");
    fprintf(stdout,
            "    Set the maximum number of quality layers to decode. If there are\n");
    fprintf(stdout,
            "    less quality layers than the specified number, all the quality layers\n");
    fprintf(stdout, "    are decoded.\n");
    fprintf(stdout, "  -x  \n");
    fprintf(stdout, "    Create an index file *.Idx (-x index_name.Idx) \n");
    fprintf(stdout, "\n");
    /* UniPG>> */
#ifdef USE_JPWL
    fprintf(stdout, "  -W <options>\n");
    fprintf(stdout,
            "    Activates the JPWL correction capability, if the codestream complies.\n");
    fprintf(stdout,
            "    Options can be a comma separated list of <param=val> tokens:\n");
    fprintf(stdout, "    c, c=numcomps\n");
    fprintf(stdout,
            "       numcomps is the number of expected components in the codestream\n");
    fprintf(stdout, "       (search of first EPB rely upon this, default is %d)\n",
            JPWL_EXPECTED_COMPONENTS);
#endif /* USE_JPWL */
    /* <<UniPG */
    fprintf(stdout, "\n");
}

/* -------------------------------------------------------------------------- */

int get_num_images(char *imgdirpath)
{
    DIR *dir;
    struct dirent* content;
    int num_images = 0;

    /*Reading the input images from given input directory*/

    dir = opendir(imgdirpath);
    if (!dir) {
        fprintf(stderr, "Could not open Folder %s\n", imgdirpath);
        return 0;
    }

    while ((content = readdir(dir)) != NULL) {
        if (strcmp(".", content->d_name) == 0 || strcmp("..", content->d_name) == 0) {
            continue;
        }
        num_images++;
    }
    return num_images;
}

int load_images(dircnt_t *dirptr, char *imgdirpath)
{
    DIR *dir;
    struct dirent* content;
    int i = 0;

    /*Reading the input images from given input directory*/

    dir = opendir(imgdirpath);
    if (!dir) {
        fprintf(stderr, "Could not open Folder %s\n", imgdirpath);
        return 1;
    } else   {
        fprintf(stderr, "Folder opened successfully\n");
    }

    while ((content = readdir(dir)) != NULL) {
        if (strcmp(".", content->d_name) == 0 || strcmp("..", content->d_name) == 0) {
            continue;
        }

        strcpy(dirptr->filename[i], content->d_name);
        i++;
    }
    return 0;
}

int get_file_format(char *filename)
{
    unsigned int i;
    static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "tif", "raw", "tga", "png", "j2k", "jp2", "jpt", "j2c", "jpc" };
    static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, PNG_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT, J2K_CFMT };
    char * ext = strrchr(filename, '.');
    if (ext == NULL) {
        return -1;
    }
    ext++;
    if (ext) {
        for (i = 0; i < sizeof(format) / sizeof(*format); i++) {
            if (_strnicmp(ext, extension[i], 3) == 0) {
                return format[i];
            }
        }
    }

    return -1;
}

char get_next_file(int imageno, dircnt_t *dirptr, img_fol_t *img_fol,
                   opj_dparameters_t *parameters)
{
    char image_filename[OPJ_PATH_LEN], infilename[OPJ_PATH_LEN],
         outfilename[OPJ_PATH_LEN], temp_ofname[OPJ_PATH_LEN];
    char *temp_p, temp1[OPJ_PATH_LEN] = "";

    strcpy(image_filename, dirptr->filename[imageno]);
    fprintf(stderr, "File Number %d \"%s\"\n", imageno, image_filename);
    parameters->decod_format = get_file_format(image_filename);
    if (parameters->decod_format == -1) {
        return 1;
    }
    sprintf(infilename, "%s/%s", img_fol->imgdirpath, image_filename);
    strncpy(parameters->infile, infilename, sizeof(infilename));

    /*Set output file*/
    strcpy(temp_ofname, strtok(image_filename, "."));
    while ((temp_p = strtok(NULL, ".")) != NULL) {
        strcat(temp_ofname, temp1);
        sprintf(temp1, ".%s", temp_p);
    }
    if (img_fol->set_out_format == 1) {
        sprintf(outfilename, "%s/%s.%s", img_fol->imgdirpath, temp_ofname,
                img_fol->out_format);
        strncpy(parameters->outfile, outfilename, sizeof(outfilename));
    }
    return 0;
}

/* -------------------------------------------------------------------------- */
int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,
                          img_fol_t *img_fol, char *indexfilename)
{
    /* parse the command line */
    int totlen, c;
    opj_option_t long_option[] = {
        {"ImgDir", REQ_ARG, NULL, 'y'},
        {"OutFor", REQ_ARG, NULL, 'O'},
    };

    const char optlist[] = "i:o:r:l:x:"

                           /* UniPG>> */
#ifdef USE_JPWL
                           "W:"
#endif /* USE_JPWL */
                           /* <<UniPG */
                           "h"     ;
    totlen = sizeof(long_option);
    img_fol->set_out_format = 0;
    do {
        c = opj_getopt_long(argc, argv, optlist, long_option, totlen);
        if (c == -1) {
            break;
        }
        switch (c) {
        case 'i': {         /* input file */
            char *infile = opj_optarg;
            parameters->decod_format = get_file_format(infile);
            switch (parameters->decod_format) {
            case J2K_CFMT:
            case JP2_CFMT:
            case JPT_CFMT:
                break;
            default:
                fprintf(stderr,
                        "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
                        infile);
                return 1;
            }
            strncpy(parameters->infile, infile, sizeof(parameters->infile) - 1);
        }
        break;

        /* ----------------------------------------------------- */

        case 'o': {         /* output file */
            char *outfile = opj_optarg;
            parameters->cod_format = get_file_format(outfile);
            switch (parameters->cod_format) {
            case PGX_DFMT:
            case PXM_DFMT:
            case BMP_DFMT:
            case TIF_DFMT:
            case RAW_DFMT:
            case TGA_DFMT:
            case PNG_DFMT:
                break;
            default:
                fprintf(stderr,
                        "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n",
                        outfile);
                return 1;
            }
            strncpy(parameters->outfile, outfile, sizeof(parameters->outfile) - 1);
        }
        break;

        /* ----------------------------------------------------- */

        case 'O': {         /* output format */
            char outformat[50];
            char *of = opj_optarg;
            sprintf(outformat, ".%s", of);
            img_fol->set_out_format = 1;
            parameters->cod_format = get_file_format(outformat);
            switch (parameters->cod_format) {
            case PGX_DFMT:
                img_fol->out_format = "pgx";
                break;
            case PXM_DFMT:
                img_fol->out_format = "ppm";
                break;
            case BMP_DFMT:
                img_fol->out_format = "bmp";
                break;
            case TIF_DFMT:
                img_fol->out_format = "tif";
                break;
            case RAW_DFMT:
                img_fol->out_format = "raw";
                break;
            case TGA_DFMT:
                img_fol->out_format = "raw";
                break;
            case PNG_DFMT:
                img_fol->out_format = "png";
                break;
            default:
                fprintf(stderr,
                        "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n",
                        outformat);
                return 1;
                break;
            }
        }
        break;

        /* ----------------------------------------------------- */


        case 'r': {     /* reduce option */
            sscanf(opj_optarg, "%d", &parameters->cp_reduce);
        }
        break;

        /* ----------------------------------------------------- */


        case 'l': {     /* layering option */
            sscanf(opj_optarg, "%d", &parameters->cp_layer);
        }
        break;

        /* ----------------------------------------------------- */

        case 'h':           /* display an help description */
            decode_help_display();
            return 1;

        /* ------------------------------------------------------ */

        case 'y': {         /* Image Directory path */
            img_fol->imgdirpath = (char*)malloc(strlen(opj_optarg) + 1);
            strcpy(img_fol->imgdirpath, opj_optarg);
            img_fol->set_imgdir = 1;
        }
        break;
        /* ----------------------------------------------------- */
        case 'x': {         /* Creation of index file */
            char *index = opj_optarg;
            strncpy(indexfilename, index, OPJ_PATH_LEN);
        }
        break;
            /* ----------------------------------------------------- */
            /* UniPG>> */
#ifdef USE_JPWL

        case 'W': {         /* activate JPWL correction */
            char *token = NULL;

            token = strtok(opj_optarg, ",");
            while (token != NULL) {

                /* search expected number of components */
                if (*token == 'c') {

                    static int compno;

                    compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */

                    if (sscanf(token, "c=%d", &compno) == 1) {
                        /* Specified */
                        if ((compno < 1) || (compno > 256)) {
                            fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
                            return 1;
                        }
                        parameters->jpwl_exp_comps = compno;

                    } else if (!strcmp(token, "c")) {
                        /* default */
                        parameters->jpwl_exp_comps = compno; /* auto for default size */

                    } else {
                        fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
                        return 1;
                    };
                }

                /* search maximum number of tiles */
                if (*token == 't') {

                    static int tileno;

                    tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */

                    if (sscanf(token, "t=%d", &tileno) == 1) {
                        /* Specified */
                        if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
                            fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
                            return 1;
                        }
                        parameters->jpwl_max_tiles = tileno;

                    } else if (!strcmp(token, "t")) {
                        /* default */
                        parameters->jpwl_max_tiles = tileno; /* auto for default size */

                    } else {
                        fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
                        return 1;
                    };
                }

                /* next token or bust */
                token = strtok(NULL, ",");
            };
            parameters->jpwl_correct = OPJ_TRUE;
            fprintf(stdout, "JPWL correction capability activated\n");
            fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
        }
        break;
#endif /* USE_JPWL */
        /* <<UniPG */

        /* ----------------------------------------------------- */

        default:
            fprintf(stderr, "WARNING -> this option is not valid \"-%c %s\"\n", c,
                    opj_optarg);
            break;
        }
    } while (c != -1);

    /* check for possible errors */
    if (img_fol->set_imgdir == 1) {
        if (!(parameters->infile[0] == 0)) {
            fprintf(stderr, "Error: options -ImgDir and -i cannot be used together !!\n");
            return 1;
        }
        if (img_fol->set_out_format == 0) {
            fprintf(stderr,
                    "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
            fprintf(stderr,
                    "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
            return 1;
        }
        if (!((parameters->outfile[0] == 0))) {
            fprintf(stderr, "Error: options -ImgDir and -o cannot be used together !!\n");
            return 1;
        }
    } else {
        if ((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
            fprintf(stderr, "Example: %s -i image.j2k -o image.pgm\n", argv[0]);
            fprintf(stderr, "    Try: %s -h\n", argv[0]);
            return 1;
        }
    }

    return 0;
}

/* -------------------------------------------------------------------------- */

/**
sample error callback expecting a FILE* client object
*/
void error_callback(const char *msg, void *client_data)
{
    FILE *stream = (FILE*)client_data;
    fprintf(stream, "[ERROR] %s", msg);
}
/**
sample warning callback expecting a FILE* client object
*/
void warning_callback(const char *msg, void *client_data)
{
    FILE *stream = (FILE*)client_data;
    fprintf(stream, "[WARNING] %s", msg);
}
/**
sample debug callback expecting no client object
*/
void info_callback(const char *msg, void *client_data)
{
    (void)client_data;
    fprintf(stdout, "[INFO] %s", msg);
}

/* -------------------------------------------------------------------------- */

int main(int argc, char **argv)
{
    opj_dparameters_t parameters;   /* decompression parameters */
    img_fol_t img_fol;
    opj_event_mgr_t event_mgr;      /* event manager */
    opj_image_t *image = NULL;
    FILE *fsrc = NULL;
    unsigned char *src = NULL;
    int file_length;
    int num_images;
    int i, imageno;
    dircnt_t *dirptr = NULL;
    opj_dinfo_t* dinfo = NULL;  /* handle to a decompressor */
    opj_cio_t *cio = NULL;
    opj_codestream_info_t cstr_info;  /* Codestream information structure */
    char indexfilename[OPJ_PATH_LEN];   /* index file name */

    /* configure the event callbacks (not required) */
    memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
    event_mgr.error_handler = error_callback;
    event_mgr.warning_handler = warning_callback;
    event_mgr.info_handler = info_callback;

    /* set decoding parameters to default values */
    opj_set_default_decoder_parameters(&parameters);

    /* Initialize indexfilename and img_fol */
    *indexfilename = 0;
    memset(&img_fol, 0, sizeof(img_fol_t));

    /* parse input and get user encoding parameters */
    if (parse_cmdline_decoder(argc, argv, &parameters, &img_fol,
                              indexfilename) == 1) {
        return 1;
    }

    /* Initialize reading of directory */
    if (img_fol.set_imgdir == 1) {
        num_images = get_num_images(img_fol.imgdirpath);

        dirptr = (dircnt_t*)malloc(sizeof(dircnt_t));
        if (dirptr) {
            dirptr->filename_buf = (char*)malloc(num_images * OPJ_PATH_LEN * sizeof(
                    char)); /* Stores at max 10 image file names*/
            if (!dirptr->filename_buf) {
                free(dirptr);
                return 1;
            }
            dirptr->filename = (char**) malloc(num_images * sizeof(char*));
            if (!dirptr->filename) {
                free(dirptr);
                return 1;
            }

            for (i = 0; i < num_images; i++) {
                dirptr->filename[i] = dirptr->filename_buf + i * OPJ_PATH_LEN;
            }
        }
        if (load_images(dirptr, img_fol.imgdirpath) == 1) {
            return 1;
        }
        if (num_images == 0) {
            fprintf(stdout, "Folder is empty\n");
            return 1;
        }
    } else {
        num_images = 1;
    }

    /*Encoding image one by one*/
    for (imageno = 0; imageno < num_images ; imageno++)  {
        image = NULL;
        fprintf(stderr, "\n");

        if (img_fol.set_imgdir == 1) {
            if (get_next_file(imageno, dirptr, &img_fol, &parameters)) {
                fprintf(stderr, "skipping file...\n");
                continue;
            }
        }

        /* read the input file and put it in memory */
        /* ---------------------------------------- */
        fsrc = fopen(parameters.infile, "rb");
        if (!fsrc) {
            fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
            return 1;
        }
        fseek(fsrc, 0, SEEK_END);
        file_length = ftell(fsrc);
        fseek(fsrc, 0, SEEK_SET);
        src = (unsigned char *) malloc(file_length);
        if (fread(src, 1, file_length, fsrc) != (size_t)file_length) {
            free(src);
            fclose(fsrc);
            fprintf(stderr,
                    "\nERROR: fread return a number of element different from the expected.\n");
            return 1;
        }
        fclose(fsrc);

        /* decode the code-stream */
        /* ---------------------- */

        switch (parameters.decod_format) {
        case J2K_CFMT: {
            /* JPEG-2000 codestream */

            /* get a decoder handle */
            dinfo = opj_create_decompress(CODEC_J2K);

            /* catch events using our callbacks and give a local context */
            opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);

            /* setup the decoder decoding parameters using user parameters */
            opj_setup_decoder(dinfo, &parameters);

            /* open a byte stream */
            cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);

            /* decode the stream and fill the image structure */
            if (*indexfilename) {           /* If need to extract codestream information*/
                image = opj_decode_with_info(dinfo, cio, &cstr_info);
            } else {
                image = opj_decode(dinfo, cio);
            }
            if (!image) {
                fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
                opj_destroy_decompress(dinfo);
                opj_cio_close(cio);
                free(src);
                return 1;
            }

            /* close the byte stream */
            opj_cio_close(cio);

            /* Write the index to disk */
            if (*indexfilename) {
                opj_bool bSuccess;
                bSuccess = write_index_file(&cstr_info, indexfilename);
                if (bSuccess) {
                    fprintf(stderr, "Failed to output index file\n");
                }
            }
        }
        break;

        case JP2_CFMT: {
            /* JPEG 2000 compressed image data */

            /* get a decoder handle */
            dinfo = opj_create_decompress(CODEC_JP2);

            /* catch events using our callbacks and give a local context */
            opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);

            /* setup the decoder decoding parameters using the current image and user parameters */
            opj_setup_decoder(dinfo, &parameters);

            /* open a byte stream */
            cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);

            /* decode the stream and fill the image structure */
            if (*indexfilename) {           /* If need to extract codestream information*/
                image = opj_decode_with_info(dinfo, cio, &cstr_info);
            } else {
                image = opj_decode(dinfo, cio);
            }
            if (!image) {
                fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
                opj_destroy_decompress(dinfo);
                opj_cio_close(cio);
                free(src);
                return 1;
            }

            /* close the byte stream */
            opj_cio_close(cio);

            /* Write the index to disk */
            if (*indexfilename) {
                opj_bool bSuccess;
                bSuccess = write_index_file(&cstr_info, indexfilename);
                if (bSuccess) {
                    fprintf(stderr, "Failed to output index file\n");
                }
            }
        }
        break;

        case JPT_CFMT: {
            /* JPEG 2000, JPIP */

            /* get a decoder handle */
            dinfo = opj_create_decompress(CODEC_JPT);

            /* catch events using our callbacks and give a local context */
            opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);

            /* setup the decoder decoding parameters using user parameters */
            opj_setup_decoder(dinfo, &parameters);

            /* open a byte stream */
            cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);

            /* decode the stream and fill the image structure */
            if (*indexfilename) {           /* If need to extract codestream information*/
                image = opj_decode_with_info(dinfo, cio, &cstr_info);
            } else {
                image = opj_decode(dinfo, cio);
            }
            if (!image) {
                fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
                opj_destroy_decompress(dinfo);
                opj_cio_close(cio);
                free(src);
                return 1;
            }

            /* close the byte stream */
            opj_cio_close(cio);

            /* Write the index to disk */
            if (*indexfilename) {
                opj_bool bSuccess;
                bSuccess = write_index_file(&cstr_info, indexfilename);
                if (bSuccess) {
                    fprintf(stderr, "Failed to output index file\n");
                }
            }
        }
        break;

        default:
            fprintf(stderr, "skipping file..\n");
            continue;
        }

        /* free the memory containing the code-stream */
        free(src);
        src = NULL;

        if (image->color_space == CLRSPC_SYCC) {
            color_sycc_to_rgb(image);
        }

        if (image->icc_profile_buf) {
#if defined(OPJ_HAVE_LIBLCMS1) || defined(OPJ_HAVE_LIBLCMS2)
            color_apply_icc_profile(image);
#endif

            free(image->icc_profile_buf);
            image->icc_profile_buf = NULL;
            image->icc_profile_len = 0;
        }

        /* create output image */
        /* ------------------- */
        switch (parameters.cod_format) {
        case PXM_DFMT:          /* PNM PGM PPM */
            if (imagetopnm(image, parameters.outfile)) {
                fprintf(stdout, "Outfile %s not generated\n", parameters.outfile);
            } else {
                fprintf(stdout, "Generated Outfile %s\n", parameters.outfile);
            }
            break;

        case PGX_DFMT:          /* PGX */
            if (imagetopgx(image, parameters.outfile)) {
                fprintf(stdout, "Outfile %s not generated\n", parameters.outfile);
            } else {
                fprintf(stdout, "Generated Outfile %s\n", parameters.outfile);
            }
            break;

        case BMP_DFMT:          /* BMP */
            if (imagetobmp(image, parameters.outfile)) {
                fprintf(stdout, "Outfile %s not generated\n", parameters.outfile);
            } else {
                fprintf(stdout, "Generated Outfile %s\n", parameters.outfile);
            }
            break;
#ifdef OPJ_HAVE_LIBTIFF
        case TIF_DFMT:          /* TIFF */
            if (imagetotif(image, parameters.outfile)) {
                fprintf(stdout, "Outfile %s not generated\n", parameters.outfile);
            } else {
                fprintf(stdout, "Generated Outfile %s\n", parameters.outfile);
            }
            break;
#endif /* OPJ_HAVE_LIBTIFF */
        case RAW_DFMT:          /* RAW */
            if (imagetoraw(image, parameters.outfile)) {
                fprintf(stdout, "Error generating raw file. Outfile %s not generated\n",
                        parameters.outfile);
            } else {
                fprintf(stdout, "Successfully generated Outfile %s\n", parameters.outfile);
            }
            break;

        case TGA_DFMT:          /* TGA */
            if (imagetotga(image, parameters.outfile)) {
                fprintf(stdout, "Error generating tga file. Outfile %s not generated\n",
                        parameters.outfile);
            } else {
                fprintf(stdout, "Successfully generated Outfile %s\n", parameters.outfile);
            }
            break;
#ifdef OPJ_HAVE_LIBPNG
        case PNG_DFMT:          /* PNG */
            if (imagetopng(image, parameters.outfile)) {
                fprintf(stdout, "Error generating png file. Outfile %s not generated\n",
                        parameters.outfile);
            } else {
                fprintf(stdout, "Successfully generated Outfile %s\n", parameters.outfile);
            }
            break;
#endif /* OPJ_HAVE_LIBPNG */
        /* Can happen if output file is TIFF or PNG
         * and OPJ_HAVE_LIBTIF or OPJ_HAVE_LIBPNG is undefined
        */
        default:
            fprintf(stderr, "Outfile %s not generated\n", parameters.outfile);
        }

        /* free remaining structures */
        if (dinfo) {
            opj_destroy_decompress(dinfo);
        }
        /* free codestream information structure */
        if (*indexfilename) {
            opj_destroy_cstr_info(&cstr_info);
        }
        /* free image data structure */
        opj_image_destroy(image);

    }
    return 0;
}
/*end main*/