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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: raf.c,v 1.7 2005/07/24 20:33:55 alex Exp $";
#endif
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* Fujifilm RAF routines */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
/* This is *experimental* and incomplete. It is based upon */
/* examination of only four (count 'em' FOUR) images which I have */
/* found on the web. This is sufficient to find and print the JPEG */
/* image contained within the file, and even extract it with */
/* something like 'extract_section'. The names and even identities of */
/* the items describing the CFA array are arbitrary and possibly */
/* wrong; feedback is welcome. */
/* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include "defs.h"
#include "datadefs.h"
#include "summary.h"
#include "maker.h"
#include "misc.h"
#include "tags.h"
#include "extern.h"
#include "raf.h"
/* Print the RAF header information, even though it's hard to tell */
/* exactly where the header ends and data begins. */
int
print_raf_header(FILE *inptr,struct fileheader *fileheader,unsigned long section_id)
{
int status = -1;
int chpr = 0;
if(Print_options & section_id)
{
/* ###%%% for now, the first 60 bytes are "header" */
if(fileheader && (fileheader->probe_magic == PROBE_RAFMAGIC))
{
print_ascii(inptr,28,0);
chpr += printf(" Model = ");
print_ascii(inptr,32,28);
status = 0;
}
else
chpr += printf(" NOT AN RAF HEADER");
}
chpr = newline(chpr);
return(status);
}
/* Process a Fujifilm RAF file, starting right after the RAF header. */
/* At this point, I *think* the location of the jpeg image is fixed; */
/* the rest is unclear, but do the best we can. */
unsigned long
process_raf(FILE *inptr,unsigned long offset,
struct image_summary *summary_entry,
char *parent_name,int indent)
{
unsigned long start_of_jpeg,jpeg_length,max_offset;
unsigned long table1_offset,table2_offset;
unsigned long table1_length,table2_length;
unsigned long CFA_offset,CFA_length;
unsigned long unknown2,CFA_primaryarraywidth,CFA_fullarraywidth;
unsigned long Secondary_offset,Secondary_length;
unsigned long unknown3,Secondary_arraywidth,Secondary_fullarraywidth;
unsigned long unused_value;
struct image_summary *tmp_summary_entry;
int unused;
char *fullname = CNULL;
int chpr = 0;
unsigned short tag;
CFA_primaryarraywidth = Secondary_offset = table1_offset = table2_offset = 0UL;
/* Record the primary for the image summary */
if(((summary_entry == NULL) || summary_entry->entry_lock) ||
(summary_entry->imageformat != IMGFMT_NOIMAGE))
{
summary_entry = new_summary_entry(summary_entry,FILEFMT_RAF,IMGFMT_RAF);
}
if(summary_entry)
{
summary_entry->imageformat = IMGFMT_RAF;
summary_entry->imagesubformat = IMGSUBFMT_CFA;
summary_entry->entry_lock = lock_number(summary_entry);
}
chpr = newline(chpr);
/* A short section of zeros; why? */
if((PRINT_SECTION))
{
print_tag_address(SECTION,offset,indent,"@");
chpr += printf("<Offset Directory>");
chpr = newline(chpr);
}
/* Some sort of ID or version? */
print_tag_address(ENTRY,offset,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"HeaderVersion");
}
if((PRINT_VALUE))
{
chpr += printf(" = ");
print_ascii(inptr,4,offset);
}
chpr = newline(chpr);
offset += 4;
/* A 20 bytes section of zeros. Unknown */
if((PRINT_SECTION))
{
print_tag_address(ENTRY,offset,indent + SMALLINDENT,"@");
if((PRINT_VALUE))
print_ubytes(inptr,20,offset);
chpr = newline(chpr);
}
/* A jpeg reduced resolution image, complete with EXIF */
start_of_jpeg = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC);
print_tag_address(ENTRY,RAF_JPEGLOC,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"JpegImageOffset");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",start_of_jpeg);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 4,indent + SMALLINDENT,"@");
jpeg_length = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 4);
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"JpegImageLength");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",jpeg_length);
chpr = newline(chpr);
/* An offset to what may be a white balance table */
print_tag_address(ENTRY,RAF_JPEGLOC + 8,indent + SMALLINDENT,"@");
table1_offset = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 8);
table1_length = read_ulong(inptr,TIFF_MOTOROLA,HERE);
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"Table1Offset");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",table1_offset);
chpr = newline(chpr);
/* The length of the table; probably also the number of rows in */
/* the CFA array */
print_tag_address(ENTRY,RAF_JPEGLOC + 12,indent + SMALLINDENT,"@");
table1_length = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 12);
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"Table1Length");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",table1_length);
chpr = newline(chpr);
/* If there is a second table, this must be an SR Super CCD with */
/* a secondary CFA table containing the data for the secondary */
/* photodiodes. The start offset for the secondary data is offset */
/* one row (2944 bytes) from the start of the primary data, */
/* suggesting that the primary and secondary CFA arrays are */
/* interleaved by rows (of 1472 unsigned shorts) */
table2_offset = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 36);
table2_length = read_ulong(inptr,TIFF_MOTOROLA,HERE);
if(table2_offset == 0)
{
print_tag_address(ENTRY,RAF_JPEGLOC + 16,indent + SMALLINDENT,"@");
CFA_offset = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 16);
CFA_length = read_ulong(inptr,TIFF_MOTOROLA,HERE);
Secondary_length = 0;
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFAOffset");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",CFA_offset);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 20,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFALength");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",CFA_length);
chpr = newline(chpr);
for(unused = 24; unused < 64; unused += 4)
{
print_tag_address(ENTRY,RAF_JPEGLOC + unused,indent + SMALLINDENT,"@");
unused_value = read_ulong(inptr,TIFF_MOTOROLA,(unsigned long)(RAF_JPEGLOC + unused));
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%s%-2d%*.*s","unused",(unused - 24)/4 + 1,TAGWIDTH-8,TAGWIDTH-8," ");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",unused_value);
chpr = newline(chpr);
}
}
else
{
/* No secondary; easy. */
CFA_offset = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 16);
CFA_length = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 20);
print_tag_address(ENTRY,RAF_JPEGLOC + 16,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFA_Offset");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",CFA_offset);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 20,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFA_length");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",CFA_length);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 24,indent + SMALLINDENT,"@");
unknown2 = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 24);
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"unknown2");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",unknown2);
chpr = newline(chpr);
CFA_primaryarraywidth = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 28);
print_tag_address(ENTRY,RAF_JPEGLOC + 28,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
/* Array width in 16 bit unsigned shorts */
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFAPrimaryArrayWidth");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",CFA_primaryarraywidth);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 32,indent + SMALLINDENT,"@");
CFA_fullarraywidth = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 32);
if((PRINT_TAGINFO))
{
/* Array width in bytes */
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFAFullArrayWidth");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",CFA_fullarraywidth);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 36,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"Table2Offset");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",table2_offset);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 40,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"Table2Length");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",table2_length);
chpr = newline(chpr);
/* It appears that the secondary CFA data is interlaced by */
/* row with the primary data. */
Secondary_offset = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 44);
Secondary_length = read_ulong(inptr,TIFF_MOTOROLA,HERE);
print_tag_address(ENTRY,RAF_JPEGLOC + 44,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFASecondaryOffset**");
}
if((PRINT_VALUE))
chpr += printf(" = @%lu",Secondary_offset);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 48,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFASecondaryLength**");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",Secondary_length);
chpr = newline(chpr);
unknown3 = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 52);
Secondary_arraywidth = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 56);
Secondary_fullarraywidth = read_ulong(inptr,TIFF_MOTOROLA,RAF_JPEGLOC + 60);
print_tag_address(ENTRY,RAF_JPEGLOC + 52,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"unknown3");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",unknown3);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 56,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFASecondaryArrayWidth");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",Secondary_arraywidth);
chpr = newline(chpr);
print_tag_address(ENTRY,RAF_JPEGLOC + 60,indent + SMALLINDENT,"@");
if((PRINT_TAGINFO))
{
if((PRINT_LONGNAMES))
chpr += printf("%s.",parent_name);
/* I dunno what to call this... */
chpr += printf("%-*.*s",TAGWIDTH,TAGWIDTH,"CFASecondaryFullArrayWidth");
}
if((PRINT_VALUE))
chpr += printf(" = %lu",Secondary_fullarraywidth);
chpr = newline(chpr);
}
if((PRINT_SECTION))
{
print_tag_address(SECTION,RAF_JPEGLOC + 63,indent,"@");
chpr += printf("</Offset Directory>");
chpr = newline(chpr);
}
/* Finish the summary entry */
if(summary_entry)
{
if(summary_entry->length <= 0)
summary_entry->length = CFA_length + Secondary_length;
if(summary_entry->offset <= 0)
summary_entry->offset = CFA_offset;
/* Not really compression; just record the presence of the */
/* secondary */
if(Secondary_offset)
summary_entry->compression = 1;
else
summary_entry->compression = 0;
/* These aren't really pixel sizes, since the actual number */
/* of columns is half the arraywidth, and the array will have */
/* to be rotated 45 degrees. And then there is the secondary */
/* pixel data... */
/* It's what we know, and post-processing can do what it */
/* wants. */
if(CFA_primaryarraywidth)
{
summary_entry->pixel_width = CFA_primaryarraywidth;
summary_entry->pixel_height = table1_length;
summary_entry->primary_width = CFA_primaryarraywidth;
summary_entry->primary_height = table1_length;
}
else
{
/* No size provided; this is the best we can do. */
summary_entry->pixel_width = (CFA_length + Secondary_length)/table1_length;
summary_entry->pixel_height = table1_length;
summary_entry->primary_width = summary_entry->pixel_width;
summary_entry->primary_height = table1_length;
}
summary_entry->subfiletype = PRIMARY_TYPE;
}
/* Now display the offset sections, starting with the jpeg image */
/* (but only if showing sections) */
if((PRINT_SECTION))
{
print_tag_address(SECTION,start_of_jpeg,indent,"@");
chpr += printf("#### Start of Jpeg Image, length %lu",jpeg_length);
chpr = newline(chpr);
}
/* Is this really a jpeg section? */
tag = read_ushort(inptr,TIFF_MOTOROLA,start_of_jpeg);
if(tag == JPEG_SOI)
{
/* If so, process it regardless of output options, to pick up */
/* information for the image summary */
fullname = splice(parent_name,".","JPEG");
max_offset = process_jpeg_segments(inptr,start_of_jpeg,JPEG_SOI,jpeg_length,
summary_entry,fullname,"@",SMALLINDENT);
print_jpeg_status();
if(summary_entry)
{
/* The jpeg summary entry should be next in the chain; */
/* there may be others following; mark the jpeg entry so */
/* that it will show up in the format summary. */
if((tmp_summary_entry = summary_entry->next_entry))
tmp_summary_entry->filesubformat |= FILESUBFMT_JPEG;
}
}
else
dumpsection(inptr,start_of_jpeg,jpeg_length,indent + SMALLINDENT);
if((PRINT_SECTION))
{
print_tag_address(SECTION,start_of_jpeg + jpeg_length - 1,indent,"@");
chpr += printf("#### End of Jpeg Image, length %lu",jpeg_length);
chpr = newline(chpr);
print_tag_address(SECTION,table1_offset,indent,"@");
chpr += printf("<Table 1> length %lu",table1_length);
chpr = newline(chpr);
if((PRINT_VALUE))
dumpsection(inptr,table1_offset,table1_length,indent + SMALLINDENT);
print_tag_address(SECTION,table1_offset + table1_length - 1,indent,"@");
chpr += printf("</Table 1>");
chpr = newline(chpr);
if(table2_offset)
{
print_tag_address(SECTION,table2_offset,indent,"@");
chpr += printf("<Table 2> length %lu",table2_length);
chpr = newline(chpr);
if((PRINT_VALUE))
dumpsection(inptr,table2_offset,table2_length,indent + SMALLINDENT);
print_tag_address(SECTION,table2_offset + table2_length - 1,indent,"@");
chpr += printf("</Table 2>");
chpr = newline(chpr);
}
/* The full CFA, with secondary if present */
print_tag_address(SECTION,CFA_offset,indent,"@");
chpr += printf("<CFA Image> length %lu",CFA_length + Secondary_length);
chpr = newline(chpr);
if((PRINT_VALUE))
dumpsection(inptr,CFA_offset,CFA_length + Secondary_length,indent + SMALLINDENT);
print_tag_address(SECTION,CFA_offset + CFA_length + Secondary_length - 1,indent,"@");
chpr += printf("</CFA Image>");
chpr = newline(chpr);
}
setcharsprinted(chpr);
return(get_filesize(inptr));
}
|
