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jp2000.c
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/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* EXIFPROBE - TIFF/JPEG/EXIF image file probe */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* Copyright (C) 2005 by Duane H. Hesser. All rights reserved. */
/* */
/* See the file LICENSE.EXIFPROBE for terms of use. */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
#ifndef lint
static char *ModuleId = "@(#) $Id: jp2000.c,v 1.10 2005/07/24 19:54:04 alex Exp $";
#endif
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* JP2/Jpeg2000 routines */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* The information coded here is derived from the public version of */
/* the Jpeg2000 specification (badly outdated) and from the jasper */
/* code at */
/* http://www.ece.uvic.ca/~mdadams/jasper/ */
/* Some items, such as the ipr, xml, uuid, and uinf boxes, are not */
/* exposed in the jasper implementation, and are implemented from the */
/* public version of the spec. A few test images containing xml and */
/* uuid boxes have been found; the rest are thoroughly untested. */
/* 64-bit addressing is not yet supported */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
#define _DEFAULT_SOURCE /* for isacii() */
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <math.h>
#include <ctype.h>
#include "defs.h"
#include "datadefs.h"
#include "summary.h"
#include "misc.h"
#include "tags.h"
#include "jp2.h"
#include "jp2_extern.h"
#include "jpegtags.h"
#include "jp2tags.h"
#include "extern.h"
struct jp2box *
read_jp2box(FILE *inptr,unsigned long offset)
{
static struct jp2box box;
struct jp2box *newbox = NULL;
if(inptr)
{
box.boxoffset = offset;
box.lbox = read_ulong(inptr,TIFF_MOTOROLA,offset);
if(!feof(inptr) && !(ferror(inptr)))
{
box.tbox = read_ulong(inptr,TIFF_MOTOROLA,HERE);
if(!feof(inptr) && !(ferror(inptr)))
{
if(box.lbox == 1)
{
#if 0
box.boxlength = read_ulong64(inptr,TIFF_MOTOROLA,HERE);
box.dataoffset = 16;
#else
PUSHCOLOR(RED);
printf("%s: cannot read 64 bit sizes/offsets yet",Progname);
POPCOLOR();
newbox = NULL;
#endif
}
else
{
box.boxlength = box.lbox;
box.dataoffset = 8;
}
newbox = &box;
}
else
newbox = NULL;
}
else
newbox = NULL;
}
return(newbox);
}
/* Print the content of the JP2 file signature box iff allowed by */
/* print options. */
int
print_jp2_header(struct fileheader *fileheader,unsigned long section_id)
{
struct jp2_header jp2header;
int status = -1;
int chpr = 0;
if(Print_options & section_id)
{
if(fileheader && (fileheader->probe_magic == PROBE_JP2MAGIC))
{
jp2header = fileheader->jp2_header;
if(jp2header.magic == PROBE_JP2MAGIC)
{
/* Ok, I'm convinced... */
print_jp2type(jp2header.type,0);
chpr += printf(" <%#lx> magic %#lx, length %lu",jp2header.type,
jp2header.magic,jp2header.length);
chpr = newline(chpr);
status = 0;
}
else
chpr += printf(" NOT A JP2 HEADER");
}
else
chpr += printf(" NOT A JP2 HEADER");
}
chpr = newline(chpr);
return(status);
}
/* Print a jp2 box identifier, with its length and offset to the box */
/* data, if SECTIONS are enabled in print options. */
void
print_jp2box(FILE *inptr,struct jp2box *box,int indent)
{
unsigned long boxlength = 0UL;
int chpr = 0;
if(box)
{
if(box->boxlength == 0UL)
box->boxlength = get_filesize(inptr) - box->boxoffset;
else
boxlength = box->boxlength;
if(PRINT_SECTION)
{
print_tag_address(SECTION,box->boxoffset,indent,"@");
print_jp2type(box->tbox,0);
chpr += printf(" <%#lx>",box->tbox);
chpr += printf(" length %lu",boxlength);
/* Indicate that this is lastbox */
if(box->boxlength == 0UL)
chpr += printf(" (0)");
chpr += printf(" data offset %lu",box->dataoffset);
}
}
chpr = newline(chpr);
}
int
list_jp2box(FILE *inptr,struct jp2box *box,char *parent_name,int indent,int donl)
{
unsigned long boxlength = 0UL;
int chpr = 0;
if(box)
{
if(box->boxlength == 0UL)
boxlength = get_filesize(inptr) - box->boxoffset;
else
boxlength = box->boxlength;
if((LIST_MODE))
{
print_tag_address(ENTRY,box->boxoffset,indent,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
printf("%s",parent_name);
print_jp2type(box->tbox,0);
}
if((PRINT_VALUE))
{
chpr += printf(" = @%lu:%-4lu",box->boxoffset,boxlength);
/* Indicate that this is lastbox */
if(box->boxlength == 0UL)
chpr += printf(":0");
}
}
}
if(donl)
chpr = newline(chpr);
return(chpr);
}
/* Report the type of a JP2 box. Types are normally printable ascii */
/* (stored in 4 byte unsigned integers), but this routine is prepared */
/* to print garbled 'types', which may indicate that the program has */
/* gone astray, or that the file is garbled. Unprintable bytes, */
/* including newlines and such, are printed in escaped octal */
/* notation. */
/* Box type names are enclosed in []. */
void
print_jp2type(unsigned long type,int atend)
{
int i;
char *p;
int chpr = 0;
p = (char *)&type + 3;
if(!(LIST_MODE))
{
putchar('[');
++chpr;
}
/* 'atend' declares that the output marks the last byte of the */
/* box; this is indicated by prepending a '/' to the box name */
if(atend)
{
putchar('/');
++chpr;
}
for(i = 0; i < 4; ++i,--p)
{
if(isascii(*p) && isprint(*p))
{
putchar(*p);
++chpr;
}
else if(*p)
chpr += printf("\\%03u",*p & 0xff);
else
chpr += printf("\\0");
}
if(!(LIST_MODE))
{
putchar(']');
++chpr;
}
setcharsprinted(chpr);
}
/* The top level JP2 processor. */
unsigned long
process_jp2(FILE *inptr,unsigned long offset,struct image_summary *summary_entry,
char *parent_name,int indent)
{
struct jp2box *box;
unsigned long max_offset = 0L;
unsigned long lastbox = 0L;
unsigned long dumplength;
while(!feof(inptr) && !lastbox)
{
box = read_jp2box(inptr,offset);
if(box)
{
/* This routine is currently called only from main(), */
/* where the summary_entry will already have been created */
/* nonetheless... */
if((summary_entry == NULL) || summary_entry->entry_lock)
summary_entry = new_summary_entry(summary_entry,0,IMGFMT_JPEG2000);
switch(box->tbox)
{
case JP2_FTYP:
max_offset = process_jp2_ftyp(inptr,box,summary_entry,indent);
break;
case JP2_XML:
max_offset = process_jp2_xml(inptr,box,indent);
break;
case JP2_JP2I:
max_offset = process_jp2_jp2i(inptr,box,indent);
break;
case JP2_JP2H:
max_offset = process_jp2_jp2h(inptr,box,summary_entry,indent);
break;
case JP2_UUID:
max_offset = process_jp2_uuid(inptr,box,summary_entry,indent);
break;
case JP2_JP2C:
if(box->boxlength == 0)
++lastbox;
max_offset = process_jp2_jp2c(inptr,box,summary_entry,indent);
break;
case JP2_UINF:
max_offset = process_jp2_uinf(inptr,box,summary_entry,indent);
break;
case JP2_PRFL: /* apparently not in the final spec */
default:
if((box->boxlength == 0) || ateof(inptr))
++lastbox;
if((LIST_MODE))
setcharsprinted(list_jp2box(inptr,box,"JP2.",indent,1));
else
print_jp2box(inptr,box,indent);
max_offset = box->boxoffset + box->boxlength;
if((PRINT_SECTION))
{
/* Dump unrecognized boxes. */
if(Max_undefined > 0)
{
if(Max_undefined == DUMPALL)
dumplength = box->boxlength;
else if(Max_undefined > box->boxlength)
dumplength = box->boxlength;
else
dumplength = Max_undefined;
}
else
{
/* Always dump a little of undefined */
/* boxes */
if(box->boxlength < 48)
dumplength = box->boxlength;
else
dumplength = 48;
}
(void)newline(0);
hexdump(inptr,box->boxoffset,dumplength,dumplength,
16,indent,SUBINDENT);
(void)newline(1);
}
if((PRINT_SECTION))
{
(void)newline(0);
print_tag_address(SECTION,max_offset - 1,indent,"@");
print_jp2type(box->tbox,1);
}
break;
}
(void)newline(0);
offset = max_offset;
if(ateof(inptr))
++lastbox;
}
else
break;
}
return(max_offset);
}
unsigned long
process_jp2_ftyp(FILE *inptr,struct jp2box *box,struct image_summary *summary_entry,
int indent)
{
unsigned long boxoffset,max_offset,dataoffset;
unsigned long boxlength;
unsigned long mjv,mnv,cl,ncl;
int compat = 0;
int chpr = 0;
int i;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,1);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
mjv = read_ulong(inptr,TIFF_MOTOROLA,dataoffset);
dataoffset += 4;
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.ftyp.");
chpr += printf("MajorVersion");
}
if((PRINT_VALUE))
{
chpr += printf(" = %#-10lx = ",mjv);
print_jp2type(mjv,0);
if(mjv != JP2_BR)
printred( " (INVALID MAJOR VERSION");
}
chpr = newline(chpr);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
mnv = read_ulong(inptr,TIFF_MOTOROLA,dataoffset);
dataoffset += 4;
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.ftyp.");
chpr += printf("MinorVersion");
}
if((PRINT_VALUE))
{
chpr += printf(" = %#-10lx = ",mnv);
print_jp2type(mnv,0);
}
chpr = newline(chpr);
ncl = box->boxlength - box->dataoffset - 8;
ncl /= 4;
for(i = 0; i < ncl; ++i)
{
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
cl = read_ulong(inptr,TIFF_MOTOROLA,dataoffset);
dataoffset += 4;
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.ftyp.");
chpr += printf("Compat");
}
if((PRINT_VALUE))
{
chpr += printf(" = %#-10lx = ",cl);
print_jp2type(cl,0);
}
chpr = newline(chpr);
if(cl == JP2_BR)
compat++;
}
if((PRINT_SECTION))
{
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(box->tbox,1);
}
chpr = newline(chpr);
return(max_offset);
}
/* The xml box. The xml is printed if Print_options includes SECTION, */
/* but the text is not examined for information which might go in the */
/* image summary. Even though image information may be recorded in */
/* the xml, the information need not be correct or pertain to the */
/* current image (the original image may have been modified without */
/* updating the xml. */
unsigned long
process_jp2_xml(FILE *inptr,struct jp2box *box,int indent)
{
unsigned long boxoffset,max_offset,dataoffset;
unsigned long readsize;
unsigned long boxlength,size;
int chpr = 0;
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
dataoffset = boxoffset + box->dataoffset;
max_offset = box->boxoffset + box->boxlength;
size = boxlength - 8;
if((PRINT_SECTION))
{
print_tag_address(VALUE,dataoffset,indent + 10,"=");
if((PRINT_VALUE))
{
if((inptr && (fseek(inptr,dataoffset,SEEK_SET)) != -1))
{
while(size > 0ULL)
{
if(size > READSIZE)
readsize = READSIZE;
else
readsize = size;
/* Print as ascii */
setcharsprinted(chpr);
print_ascii(inptr,readsize,dataoffset);
dataoffset += readsize;
size -= readsize;
}
}
}
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"=");
print_jp2type(box->tbox,1);
}
else if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,1);
chpr = newline(chpr);
return(max_offset);
}
/* The "Intellectual Property Rights" box, which records information */
/* which may have nothing to do with intellect, property, or any */
/* logical concept of rights. */
unsigned long
process_jp2_jp2i(FILE *inptr,struct jp2box *box,int indent)
{
unsigned long boxoffset,max_offset,dataoffset;
unsigned long readsize;
unsigned long boxlength,size;
int chpr = 0;
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
if((PRINT_SECTION))
{
print_tag_address(SECTION,dataoffset,indent + 8,"=");
size = boxlength - 8;
if((inptr && (fseek(inptr,dataoffset,SEEK_SET)) != -1))
{
while(size > 0ULL)
{
if(size > READSIZE)
readsize = READSIZE;
else
readsize = size;
/* Print as ascii... */
setcharsprinted(chpr);
print_ascii(inptr,readsize,dataoffset);
dataoffset += readsize;
size -= readsize;
}
}
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"=");
print_jp2type(box->tbox,1);
}
else if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,1);
chpr = newline(chpr);
return(max_offset);
}
/* The header superbox; this box has lots of human-interest stuff */
unsigned long
process_jp2_jp2h(FILE *inptr,struct jp2box *box,struct image_summary *summary_entry,
int indent)
{
unsigned long lastbox = 0L;
unsigned long boxoffset,max_offset,dataoffset,tbox;
unsigned long boxlength;
int chpr = 0;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,1);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
tbox = box->tbox;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
while(!feof(inptr) && !lastbox && (dataoffset < max_offset))
{
box = read_jp2box(inptr,dataoffset);
if(box)
{
switch(box->tbox)
{
case JP2_ihdr:
dataoffset = process_jp2_ihdr(inptr,box,summary_entry,indent + SUBINDENT);
break;
case JP2_colr:
dataoffset = process_jp2_colr(inptr,box,indent + SUBINDENT);
break;
case JP2_res:
dataoffset = process_jp2_res(inptr,box,indent + SUBINDENT);
break;
case JP2_bpcc:
case JP2_pclr:
case JP2_cdef:
case JP2_resc: /* handled in process_jp2_res(). */
case JP2_resd: /* handled in process_jp2_res(). */
/* These fields are reported but not expanded */
print_jp2box(inptr,box,indent + SUBINDENT);
if(boxlength)
dataoffset += boxlength;
else
++lastbox;
chpr = newline(chpr);
break;
default:
/* report the unknown box and try to continue. If */
/* the box is properly constructed, that may be */
/* possible; most likely this is garbled data. */
print_jp2box(inptr,box,indent + SUBINDENT);
if(ferror(inptr) || feof(inptr))
{
clearerr(inptr);
++lastbox;
}
if(boxlength)
dataoffset += boxlength;
else
++lastbox;
chpr = newline(chpr);
break;
}
}
}
if((PRINT_SECTION))
{
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(tbox,1);
}
chpr = newline(chpr);
return(max_offset);
}
/* The ihdr box, within the jp2h box, wherein we find the image size. */
unsigned long
process_jp2_ihdr(FILE *inptr,struct jp2box *box,struct image_summary *summary_entry,
int indent)
{
unsigned long boxoffset,max_offset,dataoffset;
unsigned long boxlength;
unsigned long imgheight = 0UL;
unsigned long imgwidth = 0UL;
unsigned short nc = 0;
unsigned short bpc = 0;
unsigned short comp = 0;
unsigned short hasUNK = 0;
unsigned short hasIPR = 0;
int chpr = 0;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.jp2h.",indent,1);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
imgheight = read_ulong(inptr,TIFF_MOTOROLA,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("ImageHeight");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",imgheight);
chpr = newline(chpr);
dataoffset += 4;
imgwidth = read_ulong(inptr,TIFF_MOTOROLA,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("ImageWidth");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",imgwidth);
chpr = newline(chpr);
dataoffset += 4;
if(summary_entry && (imgheight > 0) &&
(summary_entry->pixel_height < imgheight))
{
summary_entry->pixel_height = imgheight;
}
if(summary_entry && (imgwidth > 0) &&
(summary_entry->pixel_width < imgwidth))
{
summary_entry->pixel_width = imgwidth;
}
nc = read_ushort(inptr,TIFF_MOTOROLA,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("NumberOfComponents");
}
if((PRINT_VALUE))
chpr += printf(" = %u",nc);
chpr = newline(chpr);
dataoffset += 2;
bpc = read_ubyte(inptr,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("BitsPerComponent");
}
if((PRINT_VALUE))
chpr += printf(" = %u",bpc);
chpr = newline(chpr);
dataoffset++;
comp = read_ubyte(inptr,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("Compression");
}
if((PRINT_VALUE))
chpr += printf(" = %u",comp);
chpr = newline(chpr);
/* This is always 7 according to spec, and tells us nothing; */
/* it will be over-written with the transform type from a COD */
/* segement, if one is found. I imagine that "extensions" to */
/* the spec will quickly overwhelm this. */
if((summary_entry) && (summary_entry->compression <= 0))
summary_entry->compression = comp;
dataoffset++;
hasUNK = read_ubyte(inptr,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("Colorspace");
}
if((PRINT_VALUE))
chpr += printf(" = %#x = %sknown",hasUNK,hasUNK ? "un" : "");
chpr = newline(chpr);
dataoffset++;
hasIPR = read_ubyte(inptr,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.jp2h.ihdr.");
chpr += printf("IPRbox");
}
if((PRINT_VALUE))
chpr += printf(" = %#x = %s",hasIPR,hasIPR ? "yes" : "no");
chpr = newline(chpr);
dataoffset++;
if((PRINT_SECTION))
{
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(box->tbox,1);
chpr = newline(chpr);
}
return(max_offset);
}
unsigned long
process_jp2_uuid(FILE *inptr,struct jp2box *box,struct image_summary *summary_entry,
int indent)
{
unsigned long boxoffset,max_offset,dataoffset;
unsigned long boxlength,dumplength;
unsigned long ifd_offset = 0UL;
unsigned short idbyte,byte;
struct fileheader *header = NULL;
int chpr = 0;
int i;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,0);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
idbyte = byte = read_ubyte(inptr,dataoffset);
print_tag_address(SECTION,dataoffset,indent + 4,"*");
if((LIST_MODE))
{
if((PRINT_VALUE))
chpr += printf(" # ID: ");
}
else
chpr += printf("ID: ");
if(!(LIST_MODE) || (PRINT_VALUE))
{
if(!feof(inptr) && !ferror(inptr))
{
chpr += printf("%02x",(unsigned int)byte & 0xff);
for(i = 1; i < 16; ++i)
{
byte = read_ubyte(inptr,HERE);
if(feof(inptr) || ferror(inptr))
break;
chpr += printf(",%02x",(unsigned int)byte & 0xff);
}
chpr = newline(chpr);
}
}
dataoffset += 16;
/* No idea what the 16 "ID" bytes mean, or how to track */
/* registered types through the OID register. For now, a leading */
/* byte of 0x5 seems to signal a TIFF IFD. Dump a little bit of */
/* anything else. Probably need to check more of the ID... */
/* ...ok, now I've seen *two* ids that introduce TIFF sections... */
if((idbyte != 5) && (idbyte != 0xb1))
{
if((PRINT_SECTION))
{
dumplength = max_offset - dataoffset;
if(dumplength > 48)
dumplength = 48;
chpr = newline(chpr);
hexdump(inptr,dataoffset,dumplength,dumplength,16,indent,SUBINDENT);
chpr = newline(1);
}
}
/* So far I've seen these with recognizable "magic" */
/* 96,a9,f1,f1,... MSIG - ??? what is this? */
/* 2c,4c,01,00,... 8BIM Adobe PhotoShop - should handle this... */
/* 05,37,cd,ab,... TIFF - this we can do... */
/* b1,4b,f8,bd.... also TIFF */
header = read_imageheader(inptr,dataoffset);
if(header && (header->probe_magic == PROBE_TIFFMAGIC))
{
if((PRINT_SECTION))
{
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset,indent + 4,"@");
print_header(header,SECTION);
ifd_offset = read_ulong(inptr,header->file_marker,HERE);
chpr += printf(" ifd offset = %#lx/%lu",ifd_offset,ifd_offset);
chpr += printf(" (+ %lu = %#lx/%lu)",dataoffset,
dataoffset + ifd_offset,
dataoffset + ifd_offset);
chpr = newline(0);
}
dataoffset = process_tiff_ifd(inptr,header->file_marker,
8,dataoffset,max_offset,summary_entry,"JP2.uuid",
TIFF_IFD,0,-1,indent + 4);
}
dataoffset = boxoffset + boxlength;
if((PRINT_SECTION))
{
chpr = newline(0);
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(box->tbox,1);
chpr = newline(chpr);
}
return(max_offset);
}
/* The uinf superbox, presumably containing a list of uuids and urls */
/* pointing to data to describe them. */
/* This is from the outdated public Jpeg2000 spec; jasper doesn't */
/* appear to handle it. Haven't seen one in the wild yet. */
unsigned long
process_jp2_uinf(FILE *inptr,struct jp2box *box,struct image_summary *summary_entry,
int indent)
{
unsigned long boxoffset,max_offset,dataoffset,tbox;
unsigned long boxlength;
int chpr = 0;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.",indent,1);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
tbox = box->tbox;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
box = read_jp2box(inptr,dataoffset);
if(box)
{
if((box->tbox) == JP2_ulst)
dataoffset = process_jp2_ulst(inptr,box,indent);
else
{
print_jp2box(inptr,box,indent);
chpr += printf(" NOT a ULST box!");
dataoffset += box->boxlength;
}
box = read_jp2box(inptr,dataoffset);
if(box)
dataoffset = process_jp2_de(inptr,box,indent);
else
{
print_jp2box(inptr,box,indent);
chpr += printf(" NOT a DE box!");
dataoffset += box->boxlength;
}
}
if((PRINT_SECTION))
{
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(box->tbox,1);
}
chpr = newline(chpr);
return(max_offset);
}
/* The uuid list (ulst) box of the uinf superbox. */
unsigned long
process_jp2_ulst(FILE *inptr,struct jp2box *box,int indent)
{
unsigned long boxoffset,max_offset,dataoffset,tbox;
unsigned long boxlength;
unsigned short nuuid,byte;
int chpr = 0;
int i,j;
if((LIST_MODE))
chpr = list_jp2box(inptr,box,"JP2.uinf.",indent,1);
else
print_jp2box(inptr,box,indent);
boxoffset = box->boxoffset;
boxlength = box->boxlength;
tbox = box->tbox;
dataoffset = boxoffset + box->dataoffset;
max_offset = boxoffset + boxlength;
nuuid = read_ushort(inptr,TIFF_MOTOROLA,dataoffset);
print_tag_address(ENTRY,dataoffset,indent + 8,"=");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.uinf.ulst.");
chpr += printf("NumberOfUuids");
}
if((PRINT_VALUE))
chpr += printf(" = %u",nuuid);
chpr = newline(chpr);
dataoffset += 2;
/* Print the uuid list, in hex */
for(i = 0; i < nuuid; ++i)
{
print_tag_address(SECTION|ENTRY,dataoffset,indent + 4,"*");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("JP2.uinf.ulst.");
chpr += printf("ID%d = ",i);
}
if((PRINT_VALUE))
chpr += printf(" = ");
if(!feof(inptr) && !ferror(inptr))
{
for(j = 0; j < 16; ++i)
{
byte = read_ubyte(inptr,dataoffset++);
if(feof(inptr) || ferror(inptr))
break;
if((PRINT_VALUE))
chpr += printf(",%02x",(unsigned int)byte & 0xff);
}
}
else
break;
chpr = newline(chpr);
}
if((PRINT_SECTION))
{
chpr = newline(chpr);
print_tag_address(SECTION,dataoffset - 1,indent,"@");
print_jp2type(box->tbox,1);
}
chpr = newline(chpr);
return(max_offset);
}
/* The data entry URL box of the uinf superbox. */
unsigned long
process_jp2_de(FILE *inptr,struct jp2box *box,int indent)
{
unsigned long boxoffset,max_offset,dataoffset,tbox;
unsigned long boxlength;
unsigned short vers;
unsigned long flag;
int chpr = 0;
if((LIST_MODE))