-/*\r
- * Copyright (c) 2001-2003, David Janssens\r
- * Copyright (c) 2002-2003, Yannick Verschueren\r
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
- * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions\r
- * are met:\r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- * POSSIBILITY OF SUCH DAMAGE.\r
- */\r
-#include <stdio.h>\r
-#include <string.h>\r
-#include <stdlib.h>\r
-\r
-#include "openjpeg.h"\r
-#include "compat/getopt.h"\r
-#include "convert.h"\r
-\r
-#ifndef WIN32\r
-#define stricmp strcasecmp\r
-#define strnicmp strncasecmp\r
-#endif\r
-\r
-/* ----------------------------------------------------------------------- */\r
-\r
-#define J2K_CFMT 0\r
-#define JP2_CFMT 1\r
-#define JPT_CFMT 2\r
-#define MJ2_CFMT 3\r
-#define PXM_DFMT 0\r
-#define PGX_DFMT 1\r
-#define BMP_DFMT 2\r
-#define YUV_DFMT 3\r
-\r
-/* ----------------------------------------------------------------------- */\r
-\r
-void decode_help_display() {\r
- fprintf(stdout,"HELP\n----\n\n");\r
- fprintf(stdout,"- the -h option displays this help information on screen\n\n");\r
-\r
- fprintf(stdout,"List of parameters for the JPEG 2000 encoder:\n");\r
- fprintf(stdout,"\n");\r
- fprintf(stdout," -i <compressed file>\n");\r
- fprintf(stdout," REQUIRED\n");\r
- fprintf(stdout," Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");\r
- fprintf(stdout," is identified based on its suffix.\n");\r
- fprintf(stdout," -o <decompressed file>\n");\r
- fprintf(stdout," REQUIRED\n");\r
- fprintf(stdout," Currently accepts PGM-files, PPM-files, PNM-files, PGX-files and\n");\r
- fprintf(stdout," BMP-files. Binary data is written to the file (not ascii). If a PGX\n");\r
- fprintf(stdout," filename is given, there will be as many output files as there are\n");\r
- fprintf(stdout," components: an indice starting from 0 will then be appended to the\n");\r
- fprintf(stdout," output filename, just before the \"pgx\" extension. If a PGM filename\n");\r
- fprintf(stdout," is given and there are more than one component, only the first component\n");\r
- fprintf(stdout," will be written to the file.\n");\r
- fprintf(stdout," -r <reduce factor>\n");\r
- fprintf(stdout," Set the number of highest resolution levels to be discarded. The\n");\r
- fprintf(stdout," image resolution is effectively divided by 2 to the power of the\n");\r
- fprintf(stdout," number of discarded levels. The reduce factor is limited by the\n");\r
- fprintf(stdout," smallest total number of decomposition levels among tiles.\n");\r
- fprintf(stdout," -l <number of quality layers to decode>\n");\r
- fprintf(stdout," Set the maximum number of quality layers to decode. If there are\n");\r
- fprintf(stdout," less quality layers than the specified number, all the quality layers\n");\r
- fprintf(stdout," are decoded.\n");\r
- fprintf(stdout,"\n");\r
-}\r
-\r
-/* -------------------------------------------------------------------------- */\r
-\r
-int get_file_format(char *filename) {\r
- unsigned int i;\r
- static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2", "jpt" };\r
- static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT };\r
- char * ext = strrchr(filename, '.') + 1;\r
- if(ext) {\r
- for(i = 0; i < sizeof(format); i++) {\r
- if(strnicmp(ext, extension[i], 3) == 0) {\r
- return format[i];\r
- }\r
- }\r
- }\r
-\r
- return -1;\r
-}\r
-\r
-/* -------------------------------------------------------------------------- */\r
-\r
-int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters) {\r
- /* parse the command line */\r
-\r
- while (1) {\r
- int c = getopt(argc, argv, "i:o:r:q:f:t:n:c:b:x:p:s:d:h:P:S:E:M:R:T:C:I");\r
- if (c == -1)\r
- break;\r
- switch (c) {\r
- case 'i': /* input file */\r
- {\r
- char *infile = optarg;\r
- parameters->decod_format = get_file_format(infile);\r
- switch(parameters->decod_format) {\r
- case J2K_CFMT:\r
- case JP2_CFMT:\r
- case JPT_CFMT:\r
- break;\r
- default:\r
- fprintf(stderr, \r
- "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n", \r
- infile);\r
- return 1;\r
- break;\r
- }\r
- strncpy(parameters->infile, infile, MAX_PATH);\r
- }\r
- break;\r
- \r
- /* ----------------------------------------------------- */\r
-\r
- case 'o': /* output file */\r
- {\r
- char *outfile = optarg;\r
- parameters->cod_format = get_file_format(outfile);\r
- switch(parameters->cod_format) {\r
- case PGX_DFMT:\r
- case PXM_DFMT:\r
- case BMP_DFMT:\r
- break;\r
- default:\r
- fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp]!! \n", outfile);\r
- return 1;\r
- break;\r
- }\r
- strncpy(parameters->outfile, outfile, MAX_PATH);\r
- }\r
- break;\r
- \r
- /* ----------------------------------------------------- */\r
- \r
- \r
- case 'r': /* reduce option */\r
- {\r
- sscanf(optarg, "%d", ¶meters->cp_reduce);\r
- }\r
- break;\r
- \r
- /* ----------------------------------------------------- */\r
- \r
-\r
- case 'l': /* layering option */\r
- {\r
- sscanf(optarg, "%d", ¶meters->cp_layer);\r
- }\r
- break;\r
- \r
- /* ----------------------------------------------------- */\r
- \r
- case 'h': /* display an help description */\r
- {\r
- decode_help_display();\r
- return 1;\r
- }\r
- break;\r
- \r
- /* ----------------------------------------------------- */\r
- \r
- default:\r
- fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);\r
- break;\r
- }\r
- }\r
-\r
- /* check for possible errors */\r
-\r
- if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {\r
- fprintf(stderr,"ERROR -> At least one required argument is missing\nCheck j2k_to_image -h for usage information\n");\r
- return 1;\r
- }\r
-\r
- return 0;\r
-}\r
-\r
-/* -------------------------------------------------------------------------- */\r
-\r
-/**\r
-sample error callback expecting a FILE* client object\r
-*/\r
-void error_callback(const char *msg, void *client_data) {\r
- FILE *stream = (FILE*)client_data;\r
- fprintf(stream, "[ERROR] %s", msg);\r
-}\r
-/**\r
-sample warning callback expecting a FILE* client object\r
-*/\r
-void warning_callback(const char *msg, void *client_data) {\r
- FILE *stream = (FILE*)client_data;\r
- fprintf(stream, "[WARNING] %s", msg);\r
-}\r
-/**\r
-sample debug callback expecting no client object\r
-*/\r
-void info_callback(const char *msg, void *client_data) {\r
- (void)client_data;\r
- fprintf(stdout, "[INFO] %s", msg);\r
-}\r
-\r
-/* -------------------------------------------------------------------------- */\r
-\r
-int main(int argc, char **argv) {\r
- opj_dparameters_t parameters; /* decompression parameters */\r
- opj_event_mgr_t event_mgr; /* event manager */\r
- opj_image_t *image = NULL;\r
- FILE *fsrc = NULL;\r
- unsigned char *src = NULL; \r
- int file_length;\r
-\r
- opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */\r
- opj_cio_t *cio = NULL;\r
-\r
- /* configure the event callbacks (not required) */\r
- memset(&event_mgr, 0, sizeof(opj_event_mgr_t));\r
- event_mgr.error_handler = error_callback;\r
- event_mgr.warning_handler = warning_callback;\r
- event_mgr.info_handler = info_callback;\r
-\r
- /* set decoding parameters to default values */\r
- opj_set_default_decoder_parameters(¶meters);\r
-\r
- /* parse input and get user decoding parameters */\r
- if(parse_cmdline_decoder(argc, argv, ¶meters) == 1) {\r
- return 0;\r
- }\r
- \r
- /* read the input file and put it in memory */\r
- /* ---------------------------------------- */\r
- fsrc = fopen(parameters.infile, "rb");\r
- if (!fsrc) {\r
- fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);\r
- return 1;\r
- } \r
- fseek(fsrc, 0, SEEK_END);\r
- file_length = ftell(fsrc);\r
- fseek(fsrc, 0, SEEK_SET);\r
- src = (unsigned char *) malloc(file_length);\r
- fread(src, 1, file_length, fsrc);\r
- fclose(fsrc);\r
- \r
- /* decode the code-stream */\r
- /* ---------------------- */\r
-\r
- switch(parameters.decod_format) {\r
- case J2K_CFMT:\r
- {\r
- /* JPEG-2000 codestream */\r
-\r
- /* get a decoder handle */\r
- dinfo = opj_create_decompress(CODEC_J2K);\r
- \r
- /* catch events using our callbacks and give a local context */\r
- opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr); \r
-\r
- /* setup the decoder decoding parameters using user parameters */\r
- opj_setup_decoder(dinfo, ¶meters);\r
-\r
- /* open a byte stream */\r
- cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
-\r
- /* decode the stream and fill the image structure */\r
- image = opj_decode(dinfo, cio);\r
- if(!image) {\r
- fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");\r
- opj_destroy_decompress(dinfo);\r
- opj_cio_close(cio);\r
- return 1;\r
- }\r
- \r
- /* close the byte stream */\r
- opj_cio_close(cio);\r
- }\r
- break;\r
-\r
- case JP2_CFMT:\r
- {\r
- /* JPEG 2000 compressed image data */\r
-\r
- /* get a decoder handle */\r
- dinfo = opj_create_decompress(CODEC_JP2);\r
- \r
- /* catch events using our callbacks and give a local context */\r
- opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr); \r
-\r
- /* setup the decoder decoding parameters using the current image and using user parameters */\r
- opj_setup_decoder(dinfo, ¶meters);\r
-\r
- /* open a byte stream */\r
- cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
-\r
- /* decode the stream and fill the image structure */\r
- image = opj_decode(dinfo, cio);\r
- if(!image) {\r
- fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");\r
- opj_destroy_decompress(dinfo);\r
- opj_cio_close(cio);\r
- return 1;\r
- }\r
-\r
- /* close the byte stream */\r
- opj_cio_close(cio);\r
-\r
- }\r
- break;\r
-\r
- case JPT_CFMT:\r
- {\r
- /* JPEG 2000, JPIP */\r
-\r
- /* get a decoder handle */\r
- dinfo = opj_create_decompress(CODEC_JPT);\r
- \r
- /* catch events using our callbacks and give a local context */\r
- opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr); \r
-\r
- /* setup the decoder decoding parameters using user parameters */\r
- opj_setup_decoder(dinfo, ¶meters);\r
-\r
- /* open a byte stream */\r
- cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
-\r
- /* decode the stream and fill the image structure */\r
- image = opj_decode(dinfo, cio);\r
- if(!image) {\r
- fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n"); \r
- opj_destroy_decompress(dinfo);\r
- opj_cio_close(cio);\r
- return 1;\r
- } \r
-\r
- /* close the byte stream */\r
- opj_cio_close(cio);\r
- }\r
- break;\r
-\r
- default:\r
- fprintf(stderr, "ERROR -> j2k_to_image : Unknown input image format\n");\r
- return 1;\r
- break;\r
- }\r
- \r
- /* free the memory containing the code-stream */\r
- free(src);\r
- src = NULL;\r
-\r
- /* create output image */\r
- /* ------------------- */\r
-\r
- switch (parameters.cod_format) {\r
- case PXM_DFMT: /* PNM PGM PPM */\r
- imagetopnm(image, parameters.outfile);\r
- break;\r
- \r
- case PGX_DFMT: /* PGX */\r
- imagetopgx(image, parameters.outfile);\r
- break;\r
- \r
- case BMP_DFMT: /* BMP */\r
- imagetobmp(image, parameters.outfile);\r
- break;\r
- }\r
-\r
- /* free remaining structures */\r
- if(dinfo) {\r
- opj_destroy_decompress(dinfo);\r
- }\r
-\r
- /* free image data structure */\r
- opj_image_destroy(image);\r
- \r
- return 0;\r
-}\r
-\r
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * 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 "openjpeg.h"
+#include "compat/getopt.h"
+#include "convert.h"
+
+#ifndef WIN32
+#define stricmp strcasecmp
+#define strnicmp strncasecmp
+#endif
+
+/* ----------------------------------------------------------------------- */
+
+#define J2K_CFMT 0
+#define JP2_CFMT 1
+#define JPT_CFMT 2
+#define MJ2_CFMT 3
+#define PXM_DFMT 0
+#define PGX_DFMT 1
+#define BMP_DFMT 2
+#define YUV_DFMT 3
+
+/* ----------------------------------------------------------------------- */
+
+void decode_help_display() {
+ fprintf(stdout,"HELP\n----\n\n");
+ fprintf(stdout,"- the -h option displays this help information on screen\n\n");
+
+ fprintf(stdout,"List of parameters for the JPEG 2000 encoder:\n");
+ fprintf(stdout,"\n");
+ fprintf(stdout," -i <compressed file>\n");
+ fprintf(stdout," REQUIRED\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-files, PPM-files, PNM-files, PGX-files and\n");
+ fprintf(stdout," BMP-files. 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,"\n");
+}
+
+/* -------------------------------------------------------------------------- */
+
+int get_file_format(char *filename) {
+ unsigned int i;
+ static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp", "j2k", "jp2", "jpt" };
+ static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT };
+ char * ext = strrchr(filename, '.') + 1;
+ if(ext) {
+ for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
+ if(strnicmp(ext, extension[i], 3) == 0) {
+ return format[i];
+ }
+ }
+ }
+
+ return -1;
+}
+
+/* -------------------------------------------------------------------------- */
+
+int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters) {
+ /* parse the command line */
+
+ while (1) {
+ int c = getopt(argc, argv, "i:o:r:q:f:t:n:c:b:x:p:s:d:hP:S:E:M:R:T:C:I");
+ if (c == -1)
+ break;
+ switch (c) {
+ case 'i': /* input file */
+ {
+ char *infile = 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, MAX_PATH);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+ case 'o': /* output file */
+ {
+ char *outfile = optarg;
+ parameters->cod_format = get_file_format(outfile);
+ switch(parameters->cod_format) {
+ case PGX_DFMT:
+ case PXM_DFMT:
+ case BMP_DFMT:
+ break;
+ default:
+ fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx or *.bmp]!! \n", outfile);
+ return 1;
+ }
+ strncpy(parameters->outfile, outfile, MAX_PATH);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+
+ case 'r': /* reduce option */
+ {
+ sscanf(optarg, "%d", ¶meters->cp_reduce);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+
+ case 'l': /* layering option */
+ {
+ sscanf(optarg, "%d", ¶meters->cp_layer);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+ case 'h': /* display an help description */
+ decode_help_display();
+ return 1;
+
+ /* ----------------------------------------------------- */
+
+ default:
+ fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
+ break;
+ }
+ }
+
+ /* check for possible errors */
+
+ if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
+ fprintf(stderr,"ERROR -> At least one required argument is missing\nCheck j2k_to_image -h for usage information\n");
+ 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 */
+ opj_event_mgr_t event_mgr; /* event manager */
+ opj_image_t *image = NULL;
+ FILE *fsrc = NULL;
+ unsigned char *src = NULL;
+ int file_length;
+
+ opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
+ opj_cio_t *cio = NULL;
+
+ /* 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(¶meters);
+
+ /* parse input and get user decoding parameters */
+ if(parse_cmdline_decoder(argc, argv, ¶meters) == 1) {
+ return 0;
+ }
+
+ /* 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);
+ fread(src, 1, file_length, fsrc);
+ 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, ¶meters);
+
+ /* open a byte stream */
+ cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+ /* decode the stream and fill the image structure */
+ 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);
+ return 1;
+ }
+
+ /* close the byte stream */
+ opj_cio_close(cio);
+ }
+ 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 using user parameters */
+ opj_setup_decoder(dinfo, ¶meters);
+
+ /* open a byte stream */
+ cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+ /* decode the stream and fill the image structure */
+ 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);
+ return 1;
+ }
+
+ /* close the byte stream */
+ opj_cio_close(cio);
+
+ }
+ 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, ¶meters);
+
+ /* open a byte stream */
+ cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
+
+ /* decode the stream and fill the image structure */
+ 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);
+ return 1;
+ }
+
+ /* close the byte stream */
+ opj_cio_close(cio);
+ }
+ break;
+
+ default:
+ fprintf(stderr, "ERROR -> j2k_to_image : Unknown input image format\n");
+ return 1;
+ }
+
+ /* free the memory containing the code-stream */
+ free(src);
+ src = NULL;
+
+ /* create output image */
+ /* ------------------- */
+
+ switch (parameters.cod_format) {
+ case PXM_DFMT: /* PNM PGM PPM */
+ imagetopnm(image, parameters.outfile);
+ break;
+
+ case PGX_DFMT: /* PGX */
+ imagetopgx(image, parameters.outfile);
+ break;
+
+ case BMP_DFMT: /* BMP */
+ imagetobmp(image, parameters.outfile);
+ break;
+ }
+
+ /* free remaining structures */
+ if(dinfo) {
+ opj_destroy_decompress(dinfo);
+ }
+
+ /* free image data structure */
+ opj_image_destroy(image);
+
+ return 0;
+}
+
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff