303 lines
8.7 KiB
C
303 lines
8.7 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2006-2007, Parvatha Elangovan
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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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#include "opj_config.h"
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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 <windows.h>
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#else
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#include <strings.h>
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#define _stricmp strcasecmp
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#define _strnicmp strncasecmp
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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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static 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", "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, 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(_strnicmp(ext, extension[i], 3) == 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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/**
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sample error callback expecting a FILE* client object
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*/
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static void error_callback(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[ERROR] %s", msg);
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}
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/**
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sample warning callback expecting a FILE* client object
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*/
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static void warning_callback(const char *msg, void *client_data) {
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FILE *stream = (FILE*)client_data;
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fprintf(stream, "[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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#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 = 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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* J2K_RANDOM_TILE_ACCESS MAIN
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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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FILE *fsrc = NULL;
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opj_dparameters_t parameters; /* decompression parameters */
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opj_image_t* image = NULL;
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opj_stream_t *l_stream = NULL; /* Stream */
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opj_codec_t* l_codec = NULL; /* Handle to a decompressor */
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opj_codestream_info_v2_t* cstr_info = NULL;
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/* Index of corner tiles */
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OPJ_UINT32 tile_ul = 0;
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OPJ_UINT32 tile_ur = 0;
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OPJ_UINT32 tile_lr = 0;
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OPJ_UINT32 tile_ll = 0;
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <input_file>\n", argv[0]);
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return EXIT_FAILURE;
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}
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/* Set decoding parameters to default values */
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opj_set_default_decoder_parameters(¶meters);
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strncpy(parameters.infile, argv[1], OPJ_PATH_LEN - 1);
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/* read the input file */
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/* ------------------- */
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fsrc = fopen(parameters.infile, "rb");
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if (!fsrc) {
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fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
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return EXIT_FAILURE;
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}
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/* decode the JPEG2000 stream */
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/* -------------------------- */
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parameters.decod_format = infile_format(parameters.infile);
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switch(parameters.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(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(CODEC_JP2);
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break;
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}
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case JPT_CFMT: /* JPEG 2000, JPIP */
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{
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/* Get a decoder handle */
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l_codec = opj_create_decompress(CODEC_JPT);
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break;
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}
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default:
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fprintf(stderr,
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"Unrecognized format for input %s [accept only *.j2k, *.jp2, *.jpc or *.jpt]\n\n",
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parameters.infile);
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return EXIT_FAILURE;
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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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l_stream = opj_stream_create_default_file_stream(fsrc,1);
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if (!l_stream){
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fclose(fsrc);
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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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/* Setup the decoder decoding parameters using user parameters */
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if ( !opj_setup_decoder(l_codec, ¶meters) ){
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fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n");
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opj_stream_destroy(l_stream);
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fclose(fsrc);
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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, &image)){
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fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n");
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opj_stream_destroy(l_stream);
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fclose(fsrc);
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opj_destroy_codec(l_codec);
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opj_image_destroy(image);
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return EXIT_FAILURE;
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}
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/* Extract some info from the code stream */
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cstr_info = opj_get_cstr_info(l_codec);
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fprintf(stdout, "The file contains %dx%d tiles\n", cstr_info->tw, cstr_info->th);
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tile_ul = 0;
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tile_ur = cstr_info->tw - 1;
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tile_lr = cstr_info->tw * cstr_info->th - 1;
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tile_ll = tile_lr - cstr_info->tw;
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#define TEST_TILE( tile_index ) \
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fprintf(stdout, "Decoding tile %d ...\n", tile_index); \
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if(!opj_get_decoded_tile(l_codec, l_stream, image, tile_index )){ \
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fprintf(stderr, "ERROR -> j2k_to_image: failed to decode tile %d\n", tile_index); \
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opj_stream_destroy(l_stream); \
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opj_destroy_cstr_info(&cstr_info); \
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opj_destroy_codec(l_codec); \
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opj_image_destroy(image); \
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fclose(fsrc); \
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return EXIT_FAILURE; \
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} \
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fprintf(stdout, "Tile %d is decoded successfully\n", tile_index);
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TEST_TILE(tile_ul)
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TEST_TILE(tile_lr)
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TEST_TILE(tile_ul)
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TEST_TILE(tile_ll)
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TEST_TILE(tile_ur)
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TEST_TILE(tile_lr)
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/* Close the byte stream */
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opj_stream_destroy(l_stream);
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/* Destroy code stream info */
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opj_destroy_cstr_info(&cstr_info);
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/* Free remaining structures */
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opj_destroy_codec(l_codec);
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/* Free image data structure */
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opj_image_destroy(image);
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/* Close the input file */
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fclose(fsrc);
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return EXIT_SUCCESS;
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}
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/*end main*/
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