357 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			357 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 */
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#define USE_OPJ_DEPRECATED
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/* set this macro to enable profiling for the given test */
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/* warning : in order to be effective, openjpeg must have been built with profiling enabled !! */
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/*#define _PROFILE*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#ifdef _WIN32
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#include <malloc.h>
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#else
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#include <stdlib.h>
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#endif
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#include "opj_config.h"
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#include <stdlib.h>
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#ifdef _WIN32
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#include <windows.h>
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#else
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#include <strings.h>
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#endif /* _WIN32 */
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#include "openjpeg.h"
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#include "format_defs.h"
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/* -------------------------------------------------------------------------- */
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/* Declarations                                                               */ 
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int get_file_format(const char *filename);
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static int infile_format(const char *fname);
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/* -------------------------------------------------------------------------- */
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int get_file_format(const char *filename) {
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        unsigned int i;
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        static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "rawl", "tga", "png", "j2k", "jp2", "jpt", "j2c", "jpc" };
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        static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, RAWL_DFMT, TGA_DFMT, PNG_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT, J2K_CFMT };
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        char * ext = strrchr(filename, '.');
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        if (ext == NULL)
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                return -1;
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        ext++;
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        if(ext) {
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                for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
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                        if(strcasecmp(ext, extension[i]) == 0) {
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                                return format[i];
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                        }
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                }
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        }
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        return -1;
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}
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/* -------------------------------------------------------------------------- */
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#define JP2_RFC3745_MAGIC "\x00\x00\x00\x0c\x6a\x50\x20\x20\x0d\x0a\x87\x0a"
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#define JP2_MAGIC "\x0d\x0a\x87\x0a"
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/* position 45: "\xff\x52" */
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#define J2K_CODESTREAM_MAGIC "\xff\x4f\xff\x51"
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static int infile_format(const char *fname)
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{
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        FILE *reader;
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        const char *s, *magic_s;
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        int ext_format, magic_format;
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        unsigned char buf[12];
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        unsigned int l_nb_read;
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        reader = fopen(fname, "rb");
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        if (reader == NULL)
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                return -1;
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        memset(buf, 0, 12);
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        l_nb_read = (unsigned int)fread(buf, 1, 12, reader);
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        fclose(reader);
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        if (l_nb_read != 12)
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                return -1;
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        ext_format = get_file_format(fname);
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        if (ext_format == JPT_CFMT)
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                return JPT_CFMT;
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        if (memcmp(buf, JP2_RFC3745_MAGIC, 12) == 0 || memcmp(buf, JP2_MAGIC, 4) == 0) {
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                magic_format = JP2_CFMT;
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                magic_s = ".jp2";
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        }
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        else if (memcmp(buf, J2K_CODESTREAM_MAGIC, 4) == 0) {
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                magic_format = J2K_CFMT;
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                magic_s = ".j2k or .jpc or .j2c";
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        }
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        else
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                return -1;
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        if (magic_format == ext_format)
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                return ext_format;
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        s = fname + strlen(fname) - 4;
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        fputs("\n===========================================\n", stderr);
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        fprintf(stderr, "The extension of this file is incorrect.\n"
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                        "FOUND %s. SHOULD BE %s\n", s, magic_s);
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        fputs("===========================================\n", stderr);
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        return magic_format;
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}
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/* -------------------------------------------------------------------------- */
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/**
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  sample error debug callback expecting no client object
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 */
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static void error_callback(const char *msg, void *client_data) {
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        (void)client_data;
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        fprintf(stdout, "[ERROR] %s", msg);
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}
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/**
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  sample warning debug callback expecting no client object
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 */
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static void warning_callback(const char *msg, void *client_data) {
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        (void)client_data;
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        fprintf(stdout, "[WARNING] %s", msg);
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}
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/**
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  sample debug callback expecting no client object
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 */
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static void info_callback(const char *msg, void *client_data) {
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        (void)client_data;
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        fprintf(stdout, "[INFO] %s", msg);
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}
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/* -------------------------------------------------------------------------- */
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int main (int argc, char *argv[])
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{
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        opj_dparameters_t l_param;
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        opj_codec_t * l_codec;
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        opj_image_t * l_image;
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        opj_stream_t * l_stream;
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        OPJ_UINT32 l_data_size;
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        OPJ_UINT32 l_max_data_size = 1000;
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        OPJ_UINT32 l_tile_index;
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        OPJ_BYTE * l_data = (OPJ_BYTE *) malloc(1000);
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        OPJ_BOOL l_go_on = OPJ_TRUE;
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        OPJ_UINT32 l_nb_comps=0 ;
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        OPJ_INT32 l_current_tile_x0,l_current_tile_y0,l_current_tile_x1,l_current_tile_y1;
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        int da_x0=0;
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        int da_y0=0;
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        int da_x1=1000;
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        int da_y1=1000;
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        char input_file[64];
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        /* should be test_tile_decoder 0 0 1000 1000 tte1.j2k */
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        if( argc == 6 )
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        {
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                da_x0=atoi(argv[1]);
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                da_y0=atoi(argv[2]);
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                da_x1=atoi(argv[3]);
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                da_y1=atoi(argv[4]);
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                strcpy(input_file,argv[5]);
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        }
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        else
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        {
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                da_x0=0;
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                da_y0=0;
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                da_x1=1000;
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                da_y1=1000;
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                strcpy(input_file,"test.j2k");
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        }
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        if (! l_data) {
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                return EXIT_FAILURE;
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        }
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        l_stream = opj_stream_create_default_file_stream(input_file,OPJ_TRUE);
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        if (!l_stream){
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                free(l_data);
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                fprintf(stderr, "ERROR -> failed to create the stream from the file\n");
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                return EXIT_FAILURE;
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        }
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        /* Set the default decoding parameters */
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        opj_set_default_decoder_parameters(&l_param);
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        /* */
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        l_param.decod_format = infile_format(input_file);
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        /** you may here add custom decoding parameters */
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        /* do not use layer decoding limitations */
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        l_param.cp_layer = 0;
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        /* do not use resolutions reductions */
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        l_param.cp_reduce = 0;
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        /* to decode only a part of the image data */
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        /*opj_restrict_decoding(&l_param,0,0,1000,1000);*/
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        switch(l_param.decod_format) {
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                case J2K_CFMT:	/* JPEG-2000 codestream */
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                        {
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                                /* Get a decoder handle */
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                                l_codec = opj_create_decompress(OPJ_CODEC_J2K);
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                                break;
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                        }
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                case JP2_CFMT:	/* JPEG 2000 compressed image data */
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                        {
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                                /* Get a decoder handle */
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                                l_codec = opj_create_decompress(OPJ_CODEC_JP2);
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                                break;
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                        }
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                default:
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                        {    
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                                fprintf(stderr, "ERROR -> Not a valid JPEG2000 file!\n");
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                                free(l_data);
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                                opj_stream_destroy(l_stream);
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                                return EXIT_FAILURE;
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                        }
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        }
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        /* catch events using our callbacks and give a local context */		
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        opj_set_info_handler(l_codec, info_callback,00);
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        opj_set_warning_handler(l_codec, warning_callback,00);
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        opj_set_error_handler(l_codec, error_callback,00);
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        /* Setup the decoder decoding parameters using user parameters */
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        if (! opj_setup_decoder(l_codec, &l_param))
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        {
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                fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n");
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                free(l_data);
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                opj_stream_destroy(l_stream);
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                opj_destroy_codec(l_codec);
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                return EXIT_FAILURE;
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        }
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        /* Read the main header of the codestream and if necessary the JP2 boxes*/
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        if (! opj_read_header(l_stream, l_codec, &l_image))
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        {
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                fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n");
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                free(l_data);
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                opj_stream_destroy(l_stream);
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                opj_destroy_codec(l_codec);
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                return EXIT_FAILURE;
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        }
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        if (!opj_set_decode_area(l_codec, l_image, da_x0, da_y0,da_x1, da_y1)){
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                fprintf(stderr,	"ERROR -> j2k_to_image: failed to set the decoded area\n");
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                free(l_data);
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                opj_stream_destroy(l_stream);
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                opj_destroy_codec(l_codec);
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                opj_image_destroy(l_image);
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                return EXIT_FAILURE;
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        }
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        while (l_go_on)
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        {
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                if (! opj_read_tile_header( l_codec,
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                                        l_stream,
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                                        &l_tile_index,
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                                        &l_data_size,
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                                        &l_current_tile_x0,
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                                        &l_current_tile_y0,
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                                        &l_current_tile_x1,
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                                        &l_current_tile_y1,
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                                        &l_nb_comps,
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                                        &l_go_on))
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                {
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                        free(l_data);
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                        opj_stream_destroy(l_stream);
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                        opj_destroy_codec(l_codec);
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                        opj_image_destroy(l_image);
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                        return EXIT_FAILURE;
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                }
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                if (l_go_on)
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                {
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                        if (l_data_size > l_max_data_size)
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                        {
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                                OPJ_BYTE *l_new_data = (OPJ_BYTE *) realloc(l_data, l_data_size);
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                                if (! l_new_data)
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                                {
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                                        free(l_new_data);
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                                        opj_stream_destroy(l_stream);
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                                        opj_destroy_codec(l_codec);
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                                        opj_image_destroy(l_image);
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                                        return EXIT_FAILURE;
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                                }
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                                l_data = l_new_data;
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                                l_max_data_size = l_data_size;
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                        }
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                        if (! opj_decode_tile_data(l_codec,l_tile_index,l_data,l_data_size,l_stream))
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                        {
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                                free(l_data);
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                                opj_stream_destroy(l_stream);
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                                opj_destroy_codec(l_codec);
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                                opj_image_destroy(l_image);
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                                return EXIT_FAILURE;
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                        }
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                        /** now should inspect image to know the reduction factor and then how to behave with data */
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                }
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        }
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        if (! opj_end_decompress(l_codec,l_stream))
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        {
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                free(l_data);
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                opj_stream_destroy(l_stream);
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                opj_destroy_codec(l_codec);
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                opj_image_destroy(l_image);
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                return EXIT_FAILURE;
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        }
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        /* Free memory */
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        free(l_data);
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        opj_stream_destroy(l_stream);
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        opj_destroy_codec(l_codec);
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        opj_image_destroy(l_image);
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        /* Print profiling*/
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        /*PROFPRINT();*/
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        return EXIT_SUCCESS;
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}
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