540 lines
12 KiB
C
540 lines
12 KiB
C
/*
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* Copyright (c) 2003-2004, Yannick Verschueren
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* Copyright (c) 2003-2004, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "j2k.h"
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#include "jp2.h"
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#include "cio.h"
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#include "tcd.h"
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#include "int.h"
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#define JPIP_JPIP 0x6a706970
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#define JP2_JP 0x6a502020
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#define JP2_FTYP 0x66747970
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#define JP2_JP2H 0x6a703268
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#define JP2_IHDR 0x69686472
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#define JP2_COLR 0x636f6c72
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#define JP2_JP2C 0x6a703263
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#define JP2_URL 0x75726c20
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#define JP2_DBTL 0x6474626c
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#define JP2_BPCC 0x62706363
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#define JP2_JP2 0x6a703220
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/*
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*
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* Read box headers
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*
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*/
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int jp2_read_boxhdr(jp2_box_t * box)
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{
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box->init_pos = cio_tell();
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box->length = cio_read(4);
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box->type = cio_read(4);
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if (box->length == 1) {
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if (cio_read(4) != 0) {
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fprintf(stderr, "Error: Cannot handle box sizes higher than 2^32\n");
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return 1;
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};
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box->length = cio_read(4);
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}
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return 0;
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}
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/*
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*
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* Initialisation of a Standard JP2 structure
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*/
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int jp2_init_stdjp2(jp2_struct_t * jp2_struct, j2k_image_t * img)
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{
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int depth_0, sign, depth, i;
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jp2_struct->h = img->y1 - img->y0; // HEIGHT
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jp2_struct->w = img->x1 - img->x0; // WIDTH
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jp2_struct->numcomps = img->numcomps; // NC
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jp2_struct->comps = (jp2_comps_t *) malloc(sizeof(jp2_comps_t));
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depth_0 = img->comps[0].prec - 1;
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sign = img->comps[0].sgnd;
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jp2_struct->bpc = depth_0 + (sign << 7);
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for (i = 1; i < img->numcomps; i++) {
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depth = img->comps[i].prec - 1;
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sign = img->comps[i].sgnd;
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if (depth_0 != depth)
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jp2_struct->bpc = 255;
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}
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jp2_struct->C = 7; // C : Always 7
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jp2_struct->UnkC = 0; // UnkC, colorspace specified in colr box
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jp2_struct->IPR = 0; // IPR, no intellectual property
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for (i = 0; i < img->numcomps; i++)
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jp2_struct->comps[i].bpcc =
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img->comps[i].prec - 1 + (img->comps[i].sgnd << 7);
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jp2_struct->precedence = 0; // PRECEDENCE
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jp2_struct->approx = 0; // APPROX
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if ((img->numcomps == 1 || img->numcomps == 3)
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&& (jp2_struct->bpc != 255))
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jp2_struct->meth = 1;
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else
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jp2_struct->meth = 2;
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if (jp2_struct->meth == 1) {
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if (img->color_space == 1)
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jp2_struct->enumcs = 16;
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else if (img->color_space == 2)
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jp2_struct->enumcs = 17;
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else if (img->color_space == 3)
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jp2_struct->enumcs = 18; // YUV
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} else
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jp2_struct->enumcs = 0; // PROFILE (??)
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jp2_struct->brand = JP2_JP2; /* BR */
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jp2_struct->minversion = 0; /* MinV */
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jp2_struct->numcl = 1;
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jp2_struct->cl = (int *) malloc(jp2_struct->numcl * sizeof(int));
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jp2_struct->cl[0] = JP2_JP2; /* CL0 : JP2 */
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return 0;
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}
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void jp2_write_url(char *Idx_file)
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{
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unsigned int i;
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char str[256];
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jp2_box_t box;
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sprintf(str, "%s", Idx_file);
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_URL, 4); // DBTL
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cio_write(0, 1); // VERS
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cio_write(0, 3); // FLAG
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for (i = 0; i < strlen(str); i++) {
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cio_write(str[i], 1);
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}
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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/*
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* Read the IHDR box
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*
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* Image Header box
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*
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*/
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int jp2_read_ihdr(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_IHDR != box.type) {
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fprintf(stderr, "Error: Expected IHDR Marker\n");
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return 1;
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}
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jp2_struct->h = cio_read(4); // HEIGHT
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jp2_struct->w = cio_read(4); // WIDTH
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jp2_struct->numcomps = cio_read(2); // NC
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jp2_struct->bpc = cio_read(1); // BPC
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jp2_struct->C = cio_read(1); // C
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jp2_struct->UnkC = cio_read(1); // UnkC
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jp2_struct->IPR = cio_read(1); // IPR
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with IHDR Box\n");
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return 1;
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}
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return 0;
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}
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void jp2_write_ihdr(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_IHDR, 4); // IHDR
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cio_write(jp2_struct->h, 4); // HEIGHT
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cio_write(jp2_struct->w, 4); // WIDTH
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cio_write(jp2_struct->numcomps, 2); // NC
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cio_write(jp2_struct->bpc, 1); // BPC
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cio_write(jp2_struct->C, 1); // C : Always 7
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cio_write(jp2_struct->UnkC, 1); // UnkC, colorspace unknow
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cio_write(jp2_struct->IPR, 1); // IPR, no intellectual property
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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void jp2_write_bpcc(jp2_struct_t * jp2_struct)
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{
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unsigned int i;
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_BPCC, 4); // BPCC
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for (i = 0; i < jp2_struct->numcomps; i++)
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cio_write(jp2_struct->comps[i].bpcc, 1);
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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int jp2_read_bpcc(jp2_struct_t * jp2_struct)
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{
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unsigned int i;
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_BPCC != box.type) {
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fprintf(stderr, "Error: Expected BPCC Marker\n");
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return 1;
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}
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for (i = 0; i < jp2_struct->numcomps; i++)
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jp2_struct->comps[i].bpcc = cio_read(1);
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with BPCC Box\n");
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return 1;
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}
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return 0;
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}
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void jp2_write_colr(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_COLR, 4); // COLR
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cio_write(jp2_struct->meth, 1); // METH
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cio_write(jp2_struct->precedence, 1); // PRECEDENCE
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cio_write(jp2_struct->approx, 1); // APPROX
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if (jp2_struct->meth == 1)
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cio_write(jp2_struct->enumcs, 4); // EnumCS
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else
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cio_write(0, 1); // PROFILE (??)
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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int jp2_read_colr(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_COLR != box.type) {
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fprintf(stderr, "Error: Expected COLR Marker\n");
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return 1;
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}
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jp2_struct->meth = cio_read(1); // METH
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jp2_struct->precedence = cio_read(1); // PRECEDENCE
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jp2_struct->approx = cio_read(1); // APPROX
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if (jp2_struct->meth == 1)
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jp2_struct->enumcs = cio_read(4); // EnumCS
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else
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cio_read(1); // PROFILE
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with BPCC Box\n");
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return 1;
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}
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return 0;
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}
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/*
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* Write the JP2H box
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*
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* JP2 Header box
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*
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*/
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void jp2_write_jp2h(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);;
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cio_write(JP2_JP2H, 4); /* JP2H */
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jp2_write_ihdr(jp2_struct);
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if (jp2_struct->bpc == 255)
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jp2_write_bpcc(jp2_struct);
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jp2_write_colr(jp2_struct);
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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/*
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* Read the JP2H box
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*
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* JP2 Header box
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*
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*/
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int jp2_read_jp2h(jp2_struct_t * jp2_struct)
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{
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_JP2H != box.type) {
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fprintf(stderr, "Error: Expected JP2H Marker\n");
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return 1;
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}
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if (jp2_read_ihdr(jp2_struct))
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return 1;
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if (jp2_struct->bpc == 255)
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if (jp2_read_bpcc(jp2_struct))
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return 1;
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if (jp2_read_colr(jp2_struct))
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return 1;
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with JP2H Box\n");
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return 1;
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}
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return 0;
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}
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/*
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* Write the FTYP box
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*
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* File type box
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*
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*/
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void jp2_write_ftyp(jp2_struct_t * jp2_struct)
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{
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unsigned int i;
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_FTYP, 4); /* FTYP */
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cio_write(jp2_struct->brand, 4); /* BR */
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cio_write(jp2_struct->minversion, 4); /* MinV */
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for (i = 0; i < jp2_struct->numcl; i++)
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cio_write(jp2_struct->cl[i], 4); /* CL */
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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/*
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* Read the FTYP box
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*
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* File type box
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*
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*/
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int jp2_read_ftyp(jp2_struct_t * jp2_struct)
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{
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int i;
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_FTYP != box.type) {
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fprintf(stderr, "Error: Excpected FTYP Marker\n");
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return 1;
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}
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jp2_struct->brand = cio_read(4); /* BR */
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jp2_struct->minversion = cio_read(4); /* MinV */
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jp2_struct->numcl = (box.length - 16) / 4;
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jp2_struct->cl =
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(unsigned int *) malloc(jp2_struct->numcl * sizeof(unsigned int));
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for (i = jp2_struct->numcl; i > 0; i--)
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jp2_struct->cl[i] = cio_read(4); /* CLi */
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with FTYP Box\n");
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return 1;
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}
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return 0;
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}
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int jp2_write_jp2c(j2k_image_t * img, j2k_cp_t * cp, char *jp2_buffer,
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char *index)
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{
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int len;
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_JP2C, 4); // JP2C
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len = j2k_encode(img, cp, jp2_buffer, cp->tdx * cp->tdy * cp->th * cp->tw * 2, index);
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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return box.length;
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}
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int jp2_read_jp2c(unsigned char *src, int len, jp2_struct_t * jp2_struct,
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j2k_cp_t * cp)
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{
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_JP2C != box.type) {
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fprintf(stderr, "Error: Expected JP2C Marker\n");
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return 1;
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}
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src += cio_tell();
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if (j2k_decode(src, len, jp2_struct->image, cp) == 0) {
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fprintf(stderr, "JP2F box: failed to decode J2K bitstream image!\n");
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return 1;
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}
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return 0;
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}
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void jp2_write_jp()
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{
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jp2_box_t box;
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box.init_pos = cio_tell();
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cio_skip(4);
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cio_write(JP2_JP, 4); // JP
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cio_write(0x0d0a870a, 4);
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box.length = cio_tell() - box.init_pos;
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cio_seek(box.init_pos);
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cio_write(box.length, 4); /* L */
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cio_seek(box.init_pos + box.length);
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}
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/*
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* Read the JP box
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*
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* JPEG 2000 signature
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*
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* return 1 if error else 0
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*/
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int jp2_read_jp()
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{
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jp2_box_t box;
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jp2_read_boxhdr(&box);
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if (JP2_JP != box.type) {
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fprintf(stderr, "Error: Expected JP Marker\n");
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return 1;
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}
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if (0x0d0a870a != cio_read(4)) {
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fprintf(stderr, "Error with JP Marker\n");
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return 1;
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}
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if (cio_tell() - box.init_pos != box.length) {
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fprintf(stderr, "Error with JP Box size\n");
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return 1;
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}
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return 0;
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}
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int jp2_decode(unsigned char *src, int len, jp2_struct_t * jp2_struct,
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j2k_cp_t * cp)
|
|
{
|
|
cio_init(src, len);
|
|
|
|
if (jp2_read_jp())
|
|
return 1;
|
|
if (jp2_read_ftyp(jp2_struct))
|
|
return 1;
|
|
if (jp2_read_jp2h(jp2_struct))
|
|
return 1;
|
|
if (jp2_read_jp2c(src, len, jp2_struct, cp))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int jp2_encode(jp2_struct_t * jp2_struct, j2k_cp_t * cp, char *output,
|
|
char *index)
|
|
{
|
|
int len;
|
|
|
|
jp2_write_jp();
|
|
jp2_write_ftyp(jp2_struct);
|
|
jp2_write_jp2h(jp2_struct);
|
|
len = jp2_write_jp2c(jp2_struct->image, cp, output, index);
|
|
|
|
return cio_tell();
|
|
}
|