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dcraw/parse.c

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/*
Raw Photo Parser
Copyright 2004-2006 by Dave Coffin, dcoffin a cybercom o net
This program displays raw metadata for all raw photo formats.
It is free for all uses.
$Revision: 1.66 $
$Date: 2008/01/19 06:01:47 $
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#ifdef WIN32
#include <winsock2.h>
typedef __int64 INT64;
#else
#include <netinet/in.h>
typedef long long INT64;
#endif
/*
TIFF and CIFF data blocks can be quite large.
Display only the first DLEN bytes.
*/
#ifndef DLEN
#define DLEN 768
#endif
#define ushort UshORt
typedef unsigned char uchar;
typedef unsigned short ushort;
FILE *ifp;
short order;
char *fname, make[128], model[128], model2[128];
int is_dng;
ushort sget2 (uchar *s)
{
if (order == 0x4949) /* "II" means little-endian */
return s[0] | s[1] << 8;
else /* "MM" means big-endian */
return s[0] << 8 | s[1];
}
#define sget2(s) sget2((uchar *)s)
ushort get2()
{
uchar str[2] = { 0xff,0xff };
fread (str, 1, 2, ifp);
return sget2(str);
}
int sget4 (uchar *s)
{
if (order == 0x4949)
return s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24;
else
return s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3];
}
#define sget4(s) sget4((uchar *)s)
int get4()
{
uchar str[4] = { 0xff,0xff,0xff,0xff };
fread (str, 1, 4, ifp);
return sget4(str);
}
float int_to_float (int i)
{
union { int i; float f; } u;
u.i = i;
return u.f;
}
double get_double()
{
union { char c[8]; double d; } u;
int i, rev;
rev = 7 * ((order == 0x4949) == (ntohs(0x1234) == 0x1234));
for (i=0; i < 8; i++)
u.c[i ^ rev] = fgetc(ifp);
return u.d;
}
void tiff_dump(int base, int tag, int type, int count, int level)
{
int save, j, num, den;
uchar c;
int size[] = { 1,1,1,2,4,8,1,1,2,4,8,4,8 };
if (count * size[type < 13 ? type:0] > 4)
fseek (ifp, get4()+base, SEEK_SET);
save = ftell(ifp);
printf("%*stag=0x%x %d, type=%d, count=%d, offset=%06x, data=",
level*2, "", tag, tag, type, count, save);
if (tag == 34310) goto quit;
if (type==2) putchar('\"');
for (j = 0; j < count && j < DLEN; j++)
switch (type) {
case 1: case 6: case 7: /* byte values */
printf ("%c%02x",(j & 31) || count < 17 ? ' ':'\n', fgetc(ifp) & 0xff);
break;
case 2: /* null-terminated ASCII strings */
c = fgetc(ifp);
putchar(isprint(c) ? c:'.');
break;
case 3: case 8: /* word values */
printf ("%c%04x",(j & 15) || count < 9 ? ' ':'\n', get2());
break;
case 4: case 9: /* dword values */
printf ("%c%08x",(j & 7) || count < 5 ? ' ':'\n', get4());
break;
case 5: case 10: /* rationals */
num = get4();
den = get4();
printf (" %d/%d", num, den);
// printf (" %lf", (double) num/den);
break;
}
if (type==2) putchar('\"');
quit:
putchar('\n');
fseek (ifp, save, SEEK_SET);
}
void parse_nikon_capture_note (int length)
{
unsigned sorder, offset, tag, j, size;
puts (" Nikon Capture Note:");
sorder = order;
order = 0x4949;
fseek (ifp, 22, SEEK_CUR);
for (offset=22; offset+22 < length; offset += 22+size) {
tag = get4();
fseek (ifp, 14, SEEK_CUR);
size = get4()-4;
printf(" tag=0x%08x, size=%d", tag, size);
for (j=0; j < size; j++)
printf ("%s%02x", j & 31 ? " ":"\n\t", fgetc(ifp));
puts("");
}
order = sorder;
}
void nikon_decrypt (uchar ci, uchar cj, int tag, int i, int size, uchar *buf)
{
static const uchar xlat[2][256] = {
{ 0xc1,0xbf,0x6d,0x0d,0x59,0xc5,0x13,0x9d,0x83,0x61,0x6b,0x4f,0xc7,0x7f,0x3d,0x3d,
0x53,0x59,0xe3,0xc7,0xe9,0x2f,0x95,0xa7,0x95,0x1f,0xdf,0x7f,0x2b,0x29,0xc7,0x0d,
0xdf,0x07,0xef,0x71,0x89,0x3d,0x13,0x3d,0x3b,0x13,0xfb,0x0d,0x89,0xc1,0x65,0x1f,
0xb3,0x0d,0x6b,0x29,0xe3,0xfb,0xef,0xa3,0x6b,0x47,0x7f,0x95,0x35,0xa7,0x47,0x4f,
0xc7,0xf1,0x59,0x95,0x35,0x11,0x29,0x61,0xf1,0x3d,0xb3,0x2b,0x0d,0x43,0x89,0xc1,
0x9d,0x9d,0x89,0x65,0xf1,0xe9,0xdf,0xbf,0x3d,0x7f,0x53,0x97,0xe5,0xe9,0x95,0x17,
0x1d,0x3d,0x8b,0xfb,0xc7,0xe3,0x67,0xa7,0x07,0xf1,0x71,0xa7,0x53,0xb5,0x29,0x89,
0xe5,0x2b,0xa7,0x17,0x29,0xe9,0x4f,0xc5,0x65,0x6d,0x6b,0xef,0x0d,0x89,0x49,0x2f,
0xb3,0x43,0x53,0x65,0x1d,0x49,0xa3,0x13,0x89,0x59,0xef,0x6b,0xef,0x65,0x1d,0x0b,
0x59,0x13,0xe3,0x4f,0x9d,0xb3,0x29,0x43,0x2b,0x07,0x1d,0x95,0x59,0x59,0x47,0xfb,
0xe5,0xe9,0x61,0x47,0x2f,0x35,0x7f,0x17,0x7f,0xef,0x7f,0x95,0x95,0x71,0xd3,0xa3,
0x0b,0x71,0xa3,0xad,0x0b,0x3b,0xb5,0xfb,0xa3,0xbf,0x4f,0x83,0x1d,0xad,0xe9,0x2f,
0x71,0x65,0xa3,0xe5,0x07,0x35,0x3d,0x0d,0xb5,0xe9,0xe5,0x47,0x3b,0x9d,0xef,0x35,
0xa3,0xbf,0xb3,0xdf,0x53,0xd3,0x97,0x53,0x49,0x71,0x07,0x35,0x61,0x71,0x2f,0x43,
0x2f,0x11,0xdf,0x17,0x97,0xfb,0x95,0x3b,0x7f,0x6b,0xd3,0x25,0xbf,0xad,0xc7,0xc5,
0xc5,0xb5,0x8b,0xef,0x2f,0xd3,0x07,0x6b,0x25,0x49,0x95,0x25,0x49,0x6d,0x71,0xc7 },
{ 0xa7,0xbc,0xc9,0xad,0x91,0xdf,0x85,0xe5,0xd4,0x78,0xd5,0x17,0x46,0x7c,0x29,0x4c,
0x4d,0x03,0xe9,0x25,0x68,0x11,0x86,0xb3,0xbd,0xf7,0x6f,0x61,0x22,0xa2,0x26,0x34,
0x2a,0xbe,0x1e,0x46,0x14,0x68,0x9d,0x44,0x18,0xc2,0x40,0xf4,0x7e,0x5f,0x1b,0xad,
0x0b,0x94,0xb6,0x67,0xb4,0x0b,0xe1,0xea,0x95,0x9c,0x66,0xdc,0xe7,0x5d,0x6c,0x05,
0xda,0xd5,0xdf,0x7a,0xef,0xf6,0xdb,0x1f,0x82,0x4c,0xc0,0x68,0x47,0xa1,0xbd,0xee,
0x39,0x50,0x56,0x4a,0xdd,0xdf,0xa5,0xf8,0xc6,0xda,0xca,0x90,0xca,0x01,0x42,0x9d,
0x8b,0x0c,0x73,0x43,0x75,0x05,0x94,0xde,0x24,0xb3,0x80,0x34,0xe5,0x2c,0xdc,0x9b,
0x3f,0xca,0x33,0x45,0xd0,0xdb,0x5f,0xf5,0x52,0xc3,0x21,0xda,0xe2,0x22,0x72,0x6b,
0x3e,0xd0,0x5b,0xa8,0x87,0x8c,0x06,0x5d,0x0f,0xdd,0x09,0x19,0x93,0xd0,0xb9,0xfc,
0x8b,0x0f,0x84,0x60,0x33,0x1c,0x9b,0x45,0xf1,0xf0,0xa3,0x94,0x3a,0x12,0x77,0x33,
0x4d,0x44,0x78,0x28,0x3c,0x9e,0xfd,0x65,0x57,0x16,0x94,0x6b,0xfb,0x59,0xd0,0xc8,
0x22,0x36,0xdb,0xd2,0x63,0x98,0x43,0xa1,0x04,0x87,0x86,0xf7,0xa6,0x26,0xbb,0xd6,
0x59,0x4d,0xbf,0x6a,0x2e,0xaa,0x2b,0xef,0xe6,0x78,0xb6,0x4e,0xe0,0x2f,0xdc,0x7c,
0xbe,0x57,0x19,0x32,0x7e,0x2a,0xd0,0xb8,0xba,0x29,0x00,0x3c,0x52,0x7d,0xa8,0x49,
0x3b,0x2d,0xeb,0x25,0x49,0xfa,0xa3,0xaa,0x39,0xa7,0xc5,0xa7,0x50,0x11,0x36,0xfb,
0xc6,0x67,0x4a,0xf5,0xa5,0x12,0x65,0x7e,0xb0,0xdf,0xaf,0x4e,0xb3,0x61,0x7f,0x2f } };
uchar ck=0x60;
if (strncmp ((char *)buf, "02", 2)) return;
ci = xlat[0][ci];
cj = xlat[1][cj];
printf("Decrypted tag 0x%x:\n%*s", tag, (i & 31)*3, "");
for (; i < size; i++)
printf("%02x%c", buf[i] ^ (cj += ci * ck++), (i & 31) == 31 ? '\n':' ');
if (size & 31) puts("");
}
int parse_tiff_ifd (int base, int level);
void parse_makernote (int base, int level)
{
int offset=0, entries, tag, type, count, val, save;
unsigned serial=0, key=0;
uchar buf91[630]="", buf97[608]="", buf98[31]="";
short sorder;
char buf[10];
/*
The MakerNote might have its own TIFF header (possibly with
its own byte-order!), or it might just be a table.
*/
sorder = order;
fread (buf, 1, 10, ifp);
if (!strcmp (buf,"Nikon")) { /* starts with "Nikon\0\2\0\0\0" ? */
base = ftell(ifp);
order = get2(); /* might differ from file-wide byteorder */
val = get2(); /* should be 42 decimal */
offset = get4();
fseek (ifp, offset-8, SEEK_CUR);
} else if (!strcmp (buf,"OLYMPUS")) {
base = ftell(ifp)-10;
fseek (ifp, -2, SEEK_CUR);
order = get2();
val = get2();
} else if (!strncmp (buf,"FUJIFILM",8) ||
!strncmp (buf,"SONY",4) ||
!strcmp (buf,"Panasonic")) {
order = 0x4949;
fseek (ifp, 2, SEEK_CUR);
} else if (!strcmp (buf,"OLYMP") ||
!strcmp (buf,"LEICA") ||
!strcmp (buf,"Ricoh") ||
!strcmp (buf,"EPSON"))
fseek (ifp, -2, SEEK_CUR);
else if (!strcmp (buf,"AOC"))
fseek (ifp, -4, SEEK_CUR);
else
fseek (ifp, -10, SEEK_CUR);
entries = get2();
if (entries > 100) return;
puts(" MakerNote:");
while (entries--) {
save = ftell(ifp);
tag = get2();
type = get2();
count= get4();
tiff_dump (base, tag, type, count, level);
if ((tag == 0x11 && !strncmp(make,"NIKON",5)) || type == 13) {
fseek (ifp, get4()+base, SEEK_SET);
parse_tiff_ifd (base, level+1);
}
if (tag == 0x1d)
while ((val = fgetc(ifp)) && val != EOF)
serial = serial*10 + (isdigit(val) ? val - '0' : val % 10);
if (tag == 0x91)
fread (buf91, sizeof buf91, 1, ifp);
if (tag == 0x97)
fread (buf97, sizeof buf97, 1, ifp);
if (tag == 0x98)
fread (buf98, sizeof buf98, 1, ifp);
if (tag == 0xa7)
key = fgetc(ifp)^fgetc(ifp)^fgetc(ifp)^fgetc(ifp);
if (!strcmp (buf,"OLYMP") && tag >> 8 == 0x20)
parse_tiff_ifd (base, level+1);
if (tag == 0xe01)
parse_nikon_capture_note (count);
if (tag == 0xb028) {
fseek (ifp, get4(), SEEK_SET);
parse_tiff_ifd (base, level+1);
}
fseek (ifp, save+12, SEEK_SET);
}
nikon_decrypt (serial, key, 0x91, 4, sizeof buf91, buf91);
if (!strncmp ((char *)buf97, "0205", 4))
nikon_decrypt (serial, key, 0x97, 4, 284, buf97);
else
nikon_decrypt (serial, key, 0x97, 284, sizeof buf97, buf97);
nikon_decrypt (serial, key, 0x98, 4, sizeof buf98, buf98);
order = sorder;
}
void parse_exif (int base, int level)
{
int entries, tag, type, count, save;
puts("EXIF table:");
entries = get2();
while (entries--) {
save = ftell(ifp);
tag = get2();
type = get2();
count= get4();
tiff_dump (base, tag, type, count, level);
if (tag == 0x927c)
parse_makernote (base, level+1);
fseek (ifp, save+12, SEEK_SET);
}
}
void parse_mos(int level);
void sony_decrypt (unsigned *data, int len, int start, int key)
{
static unsigned pad[128], p;
if (start) {
for (p=0; p < 4; p++)
pad[p] = key = key * 48828125 + 1;
pad[3] = pad[3] << 1 | (pad[0]^pad[2]) >> 31;
for (p=4; p < 127; p++)
pad[p] = (pad[p-4]^pad[p-2]) << 1 | (pad[p-3]^pad[p-1]) >> 31;
for (p=0; p < 127; p++)
pad[p] = htonl(pad[p]);
}
while (len--)
*data++ ^= pad[p++ & 127] = pad[(p+1) & 127] ^ pad[(p+65) & 127];
}
int parse_tiff_ifd (int base, int level)
{
int entries, tag, type, count, slen, save, save2, i;
unsigned *buf, sony_offset=0, sony_length=0, sony_key=0;
FILE *sfp;
entries = get2();
if (entries > 1024) return 1;
while (entries--) {
save = ftell(ifp);
tag = get2();
type = get2();
count= get4();
slen = count;
if (slen > 128) slen = 128;
tiff_dump (base, tag, type, count, level);
switch (tag) {
case 0x10f: /* Make tag */
fgets (make, slen, ifp);
break;
case 0x110: /* Model tag */
fgets (model, slen, ifp);
break;
case 33405: /* Model2 tag */
fgets (model2, slen, ifp);
break;
case 0x14a: /* SubIFD tag */
save2 = ftell(ifp);
for (i=0; i < count; i++) {
printf ("SubIFD #%d:\n", i+1);
fseek (ifp, save2 + i*4, SEEK_SET);
fseek (ifp, get4()+base, SEEK_SET);
parse_tiff_ifd (base, level+1);
}
break;
case 29184: sony_offset = get4(); break;
case 29185: sony_length = get4(); break;
case 29217: sony_key = get4(); break;
case 33424:
puts("Kodak private data:");
fseek (ifp, get4()+base, SEEK_SET);
parse_tiff_ifd (base, level+1);
break;
case 34310:
parse_mos(0);
break;
case 34665:
fseek (ifp, get4()+base, SEEK_SET);
parse_exif (base, level+1);
break;
case 34853:
puts("GPS data:");
fseek (ifp, get4()+base, SEEK_SET);
parse_tiff_ifd (base, level+1);
break;
case 50459:
i = order;
save2 = ftell(ifp);
order = get2();
fseek (ifp, save2 + (get2(),get4()), SEEK_SET);
parse_tiff_ifd (save2, level+1);
order = i;
break;
case 50706:
is_dng = 1;
break;
case 50740:
if (count != 4 || type != 1) break;
puts("Sony SR2 private IFD:");
fseek (ifp, get4()+base, SEEK_SET);
parse_tiff_ifd (base, level+1);
}
fseek (ifp, save+12, SEEK_SET);
}
if (sony_length && (buf = malloc(sony_length))) {
fseek (ifp, sony_offset, SEEK_SET);
fread (buf, sony_length, 1, ifp);
sony_decrypt (buf, sony_length/4, 1, sony_key);
sfp = ifp;
if ((ifp = tmpfile())) {
fwrite (buf, sony_length, 1, ifp);
fseek (ifp, 0, SEEK_SET);
puts ("Sony SR2 encrypted IFD:");
parse_tiff_ifd (-sony_offset, level);
fclose (ifp);
}
ifp = sfp;
free (buf);
}
return 0;
}
/*
Parse a TIFF file looking for camera model and decompress offsets.
*/
void parse_tiff (int base)
{
int doff, ifd=0;
fseek (ifp, base, SEEK_SET);
order = get2();
if (order != 0x4949 && order != 0x4d4d) return;
get2();
while ((doff = get4())) {
fseek (ifp, doff+base, SEEK_SET);
printf ("IFD #%d:\n", ifd++);
if (parse_tiff_ifd (base, 0)) break;
}
}
void parse_minolta()
{
int data_offset, save, tag, len;
fseek (ifp, 4, SEEK_SET);
data_offset = get4() + 8;
while ((save=ftell(ifp)) < data_offset) {
tag = get4();
len = get4();
printf ("Tag %c%c%c offset %06x length %06x\n",
tag>>16, tag>>8, tag, save, len);
switch (tag) {
case 0x545457: /* TTW */
parse_tiff (ftell(ifp));
}
fseek (ifp, save+len+8, SEEK_SET);
}
}
/*
Parse the CIFF structure.
*/
void parse_ciff (int offset, int length, int level)
{
int tboff, nrecs, i, j, type, len, dlen, roff, aoff=0, save;
char c, name[256];
ushort key[2];
fseek (ifp, offset+length-4, SEEK_SET);
tboff = get4() + offset;
fseek (ifp, tboff, SEEK_SET);
nrecs = get2();
if (nrecs > 100) return;
printf ("%*s%d records:\n", level*2, "", nrecs);
for (i = 0; i < nrecs; i++) {
save = ftell(ifp);
type = get2();
printf ("%*stype=0x%04x", level*2, "", type);
if (type & 0x4000) {
len = 8;
type &= 0x3fff;
} else {
len = get4();
roff = get4();
aoff = offset + roff;
printf (", length=%d, reloff=%d, absoff=%d",
len, roff, aoff);
fseek (ifp, aoff, SEEK_SET);
}
if ((type & 0xe700) == 0)
printf (", data=");
if (type == 0x0032) /* display as words */
type |= 0x1000;
dlen = len < DLEN ? len:DLEN;
switch (type >> 8) {
case 0x28:
case 0x30:
putchar('\n');
parse_ciff (aoff, len, level+1);
fseek (ifp, save+10, SEEK_SET);
continue;
case 0x00: /* byte values */
for (j = 0; j < dlen; j++)
printf ("%c%02x",(j & 31) || dlen < 16 ? ' ':'\n', fgetc(ifp) & 0xff);
break;
case 0x08: /* null-terminated ASCII strings */
putchar('\"');
for (j = 0; j < dlen; j++) {
c = fgetc(ifp);
putchar( isprint(c) ? c:'.');
}
putchar('\"');
break;
case 0x10: /* word values */
key[0] = get2();
fseek (ifp, -2, SEEK_CUR);
if (type == 0x1032 && key[0] == 1040)
key[1] = 17907;
else key[0] = key[1] = 0;
for (j = 0; j < dlen; j+=2)
printf ("%c%5u",(j & 31) || dlen < 16 ? ' ':'\n',
get2() ^ key[(j >> 1) & 1]);
break;
case 0x18: /* dword values */
for (j = 0; j < dlen; j+=4)
printf ("%c%08x",(j & 31) || dlen < 16 ? ' ':'\n', get4());
}
putchar('\n');
fseek (ifp, save+10, SEEK_SET);
if (type == 0x080a) { /* Get the camera name */
fseek (ifp, aoff, SEEK_SET);
fread (name, 256, 1, ifp);
strcpy (make, name);
strcpy (model, name + strlen(make)+1);
}
}
}
int parse_jpeg (int offset)
{
int len, save, hlen;
fseek (ifp, offset, SEEK_SET);
if (fgetc(ifp) != 0xff || fgetc(ifp) != 0xd8) return 0;
while (fgetc(ifp) == 0xff && fgetc(ifp) >> 4 != 0xd) {
order = 0x4d4d;
len = get2() - 2;
save = ftell(ifp);
order = get2();
hlen = get4();
if (get4() == 0x48454150) /* "HEAP" */
parse_ciff (save+hlen, len-hlen, 0);
parse_tiff (save+6);
fseek (ifp, save+len, SEEK_SET);
}
return 1;
}
void parse_riff (int level)
{
unsigned i, size, end, save;
char tag[4], type[4], buf[64];
order = 0x4949;
fread (tag, 4, 1, ifp);
size = get4();
if (isdigit(tag[0])) {
fseek (ifp, size, SEEK_CUR);
return;
}
printf ("%*.4s size %d", level*4+4, tag, size);
if (!memcmp(tag,"RIFF",4) || !memcmp(tag,"LIST",4)) {
end = ftell(ifp) + size;
fread (type, 4, 1, ifp);
printf (" type %.4s:\n", type);
while (ftell(ifp) < end)
parse_riff (level+1);
} else {
save = ftell(ifp);
fread (buf, 1, 40, ifp);
printf (": ");
for (i=0; i < 40 && isprint(buf[i]); i++)
putchar (buf[i]);
putchar ('\n');
fseek (ifp, save+size, SEEK_SET);
}
}
void parse_mos(int level)
{
char data[256];
int i, skip, save;
char *cp;
save = ftell(ifp);
while (1) {
if (get4() != 0x504b5453) break;
get4();
printf ("%*sPKTS ", level, "");
fread (data, 1, 40, ifp);
skip = get4();
printf ("%s %d bytes: ", data, skip);
if (!strcmp(data,"pattern_ratation_angle")) {
printf ("%d\n", get2());
continue;
}
if (!strcmp(data,"icc_camera_to_tone_matrix")) {
for (i=0; i < skip/4; i++)
printf ("%f ", int_to_float(get4()));
putchar('\n');
continue;
}
fread (data, 1, sizeof data, ifp);
fseek (ifp, -sizeof data, SEEK_CUR);
data[sizeof data - 1] = 0;
while ((cp=strchr(data,'\n')))
*cp = ' ';
printf ("%s\n",data);
parse_mos(level+2);
fseek (ifp, skip, SEEK_CUR);
}
fseek (ifp, save, SEEK_SET);
}
void parse_rollei()
{
char line[128], *val;
fseek (ifp, 0, SEEK_SET);
do {
fgets (line, 128, ifp);
fputs (line, stdout);
if ((val = strchr(line,'=')))
*val++ = 0;
else
val = line + strlen(line);
} while (strncmp(line,"EOHD",4));
strcpy (make, "Rollei");
strcpy (model, "d530flex");
}
void get_utf8 (int offset, char *buf, int len)
{
ushort c;
char *cp;
fseek (ifp, offset, SEEK_SET);
for (cp=buf; (c = get2()) && cp+3 < buf+len; ) {
if (c < 0x80)
*cp++ = c;
else if (c < 0x800) {
*cp++ = 0xc0 + (c >> 6);
*cp++ = 0x80 + (c & 0x3f);
} else {
*cp++ = 0xe0 + (c >> 12);
*cp++ = 0x80 + (c >> 6 & 0x3f);
*cp++ = 0x80 + (c & 0x3f);
}
}
*cp = 0;
}
void parse_foveon()
{
unsigned entries, off, len, tag, save, i, j, k, pent, poff[256][2];
char name[128], value[128], camf[0x20000], *pos, *cp, *dp;
unsigned val, key, type, num, ndim, dim[3];
order = 0x4949; /* Little-endian */
fseek (ifp, -4, SEEK_END);
fseek (ifp, get4(), SEEK_SET);
if (get4() != 0x64434553) { /* SECd */
printf ("Bad Section identifier at %6x\n", (int)ftell(ifp)-4);
return;
}
get4();
entries = get4();
while (entries--) {
off = get4();
len = get4();
tag = get4();
save = ftell(ifp);
fseek (ifp, off, SEEK_SET);
printf ("%c%c%c%c at offset %06x, length %06x, ",
tag, tag >> 8, tag >> 16, tag >> 24, off, len);
if (get4() != (0x20434553 | (tag << 24))) {
printf ("Bad Section identifier at %6x\n", off);
return;
}
val = get4();
printf ("version %d.%d, ",val >> 16, val & 0xffff);
switch (tag) {
case 0x32414d49: /* IMA2 */
case 0x47414d49: /* IMAG */
printf ("type %d, " , get4());
printf ("format %2d, " , get4());
printf ("columns %4d, " , get4());
printf ("rows %4d, " , get4());
printf ("rowsize %d\n" , get4());
parse_jpeg (off+28);
order = 0x4949;
break;
case 0x464d4143: /* CAMF */
printf ("type %d, ", get4());
get4();
for (i=0; i < 4; i++)
putchar(fgetc(ifp));
val = get4();
printf (" version %d.%d:\n",val >> 16, val & 0xffff);
key = get4();
if ((len -= 28) > 0x20000)
len = 0x20000;
fread (camf, 1, len, ifp);
for (i=0; i < len; i++) {
key = (key * 1597 + 51749) % 244944;
val = key * (INT64) 301593171 >> 24;
camf[i] ^= ((((key << 8) - val) >> 1) + val) >> 17;
}
for (pos=camf; (unsigned) (pos-camf) < len; pos += sget4(pos+8)) {
if (strncmp (pos, "CMb", 3)) {
printf("Bad CAMF tag \"%.4s\"\n", pos);
break;
}
val = sget4(pos+4);
printf (" %4.4s version %d.%d: ", pos, val >> 16, val & 0xffff);
switch (pos[3]) {
case 'M':
cp = pos + sget4(pos+16);
type = sget4(cp);
ndim = sget4(cp+4);
dim[0] = dim[1] = dim[2] = 1;
printf ("%d-dimensonal array %s of type %d:\n Key: (",
ndim, pos+sget4(pos+12), sget4(cp));
dp = pos + sget4(cp+8);
for (i=ndim; i--; ) {
cp += 12;
dim[i] = sget4(cp);
printf ("%s %d%s", pos+sget4(cp+4), dim[i], i ? ", ":")\n");
}
for (i=0; i < dim[2]; i++) {
for (j=0; j < dim[1]; j++) {
printf (" ");
for (k=0; k < dim[0]; k++)
switch (type) {
case 5:
printf ("%7d", *(uchar *)dp++);
break;
case 0:
case 6:
printf ("%7d", (short) sget2(dp));
dp += 2;
break;
case 1:
case 2:
printf (" %d", sget4(dp));
dp += 4;
break;
case 3:
val = sget4(dp);
printf (" %9f", int_to_float(val));
dp += 4;
}
printf ("\n");
}
printf ("\n");
}
break;
case 'P':
val = sget4(pos+16);
num = sget4(pos+val);
printf ("%s, %d parameters:\n", pos+sget4(pos+12), num);
cp = pos+val+8 + num*8;
for (i=0; i < num; i++) {
val += 8;
printf (" %s = %s\n", cp+sget4(pos+val), cp+sget4(pos+val+4));
}
break;
case 'T':
cp = pos + sget4(pos+16);
printf ("%s = %.*s\n", pos+sget4(pos+12), sget4(cp), cp+4);
break;
default:
printf ("\n");
}
}
break;
case 0x504f5250: /* PROP */
printf ("entries %d, ", pent=get4());
printf ("charset %d, ", get4());
get4();
printf ("nchars %d\n", get4());
off += pent*8 + 24;
if ((unsigned) pent > 256) pent=256;
for (i=0; i < pent*2; i++)
poff[0][i] = off + get4()*2;
for (i=0; i < pent; i++) {
get_utf8 (poff[i][0], name, 128);
get_utf8 (poff[i][1], value, 128);
printf (" %s = %s\n", name, value);
if (!strcmp (name,"CAMMANUF"))
strcpy (make, value);
if (!strcmp (name,"CAMMODEL"))
strcpy (model, value);
}
}
fseek (ifp, save, SEEK_SET);
}
}
void parse_fuji (int offset)
{
int entries, tag, len;
fseek (ifp, offset, SEEK_SET);
if (!(len = get4())) return;
printf ("Fuji table at %d:\n",len);
fseek (ifp, len, SEEK_SET);
entries = get4();
if (entries > 255) return;
while (entries--) {
tag = get2();
len = get2();
printf ("Fuji tag=0x%x, len=%d, data =",tag,len);
while (len--)
printf (" %02x",fgetc(ifp));
putchar ('\n');
}
}
void parse_phase_one (int base)
{
unsigned entries, tag, type, len, data, save;
unsigned meta=0, wide=0, high=0, i, j;
char str[256];
fseek (ifp, base, SEEK_SET);
order = get4() & 0xffff;
if (get4() >> 8 != 0x526177) return;
fseek (ifp, base+get4(), SEEK_SET);
entries = get4();
get4();
while (entries--) {
tag = get4();
type = get4();
len = get4();
data = get4();
save = ftell(ifp);
printf ("Phase One tag=0x%x, type=%d, len=%2d, data = 0x%x",
tag, type, len, data);
if (type == 4 && len == 4 && data > 0xfffffff)
printf (" = %f", int_to_float(data));
putchar ('\n');
if (tag == 0x110) meta = base+data;
if (len > 4)
fseek (ifp, base+data, SEEK_SET);
if (type == 1 && len < 256) {
fread (str, 256, 1, ifp);
puts (str);
}
if (tag != 0x21c && type == 4 && len > 4) {
for ( ; len > 0; len -= 4)
printf ("%f ", int_to_float(get4()));
puts ("");
}
fseek (ifp, save, SEEK_SET);
}
strcpy (make, "Phase One");
strcpy (model, "unknown");
if (!meta) return;
fseek (ifp, meta, SEEK_SET);
order = get2();
fseek (ifp, 6, SEEK_CUR);
fseek (ifp, meta+get4(), SEEK_SET);
entries = get4();
get4();
while (entries--) {
tag = get4();
len = get4();
data = get4();
save = ftell(ifp);
printf ("Phase One meta tag=0x%x, len=%2d, offset = 0x%x, data = ",
tag, len, data);
if (!((0x000801f4 >> (tag-0x400)) & 1)) putchar ('\n');
fseek (ifp, meta+data, SEEK_SET);
switch (tag) {
case 0x400:
for (i=0; i < len; i+=2)
printf ("%5u%c", get2(), (i & 6) == 6 || i == len-2 ? '\n':' ');
break;
case 0x401:
for (i=0; i < 16; i+=2)
printf ("%6u%c", get2(), (i & 14) == 14 || i == len-2 ? '\n':' ');
for (; i < len; i+=4)
printf ("%9.6f%c", int_to_float(get4()),
(i & 28) == 12 || i == len-4 ? '\n':' ');
break;
case 0x402:
printf ("%f\n", int_to_float (data));
break;
case 0x404: case 0x405: case 0x406: case 0x407:
fread (str, 256, 1, ifp);
puts (str);
break;
case 0x408: case 0x413:
printf ("%lf\n", get_double());
break;
case 0x40b: case 0x410: case 0x416:
for (i=0; i < len; i+=2)
printf ("%6u%c", get2(), (i & 14) == 14 || i == len-2 ? '\n':' ');
break;
case 0x40f: case 0x418: case 0x419: case 0x41a:
for (i=0; i < 4; i++)
printf ("%02X%c", fgetc(ifp), i == 3 ? '\n':' ');
for (; i < len; i+=4)
printf ("%e%c", int_to_float(get4()), i == len-4 ? '\n':' ');
break;
case 0x412:
for (i=0; i < 36; i+=4) {
printf ("%u ", j=get4());
if (i == 4) wide = j;
if (i == 12) high = j*2;
}
printf ("%u\n", get2());
for (i=0; i < wide*high; i++)
printf ("%9.6f%c", int_to_float(get4()),
i % wide == wide-1 ? '\n':' ');
for (i=0; i < wide*high; i++)
printf ("%5u%c", get2(), i % wide == wide-1 ? '\n':' ');
break;
default:
for (i=0; i < len; i++)
printf ("%02X%c", fgetc(ifp),
(i & 15) == 15 || i == len-1 ? '\n':' ');
}
fseek (ifp, save, SEEK_SET);
}
}
char *memmem (char *haystack, size_t haystacklen,
char *needle, size_t needlelen)
{
char *c;
for (c = haystack; c <= haystack + haystacklen - needlelen; c++)
if (!memcmp (c, needle, needlelen))
return c;
return NULL;
}
/*
Identify which camera created this file, and set global variables
accordingly. Return nonzero if the file cannot be decoded.
*/
void identify()
{
char head[32], *cp;
unsigned hlen, fsize, toff, tlen;
make[0] = model[0] = model2[0] = is_dng = 0;
order = get2();
hlen = get4();
fseek (ifp, 0, SEEK_SET);
fread (head, 1, 32, ifp);
fseek (ifp, 0, SEEK_END);
fsize = ftell(ifp);
if ((cp = memmem (head, 32, "MMMM", 4)) ||
(cp = memmem (head, 32, "IIII", 4))) {
parse_phase_one (cp-head);
if (cp-head) parse_tiff (0);
} else if (order == 0x4949 || order == 0x4d4d) {
if (!memcmp(head+6,"HEAPCCDR",8)) {
parse_ciff (hlen, fsize - hlen, 0);
fseek (ifp, hlen, SEEK_SET);
} else
parse_tiff (0);
} else if (!memcmp (head,"NDF0",4)) {
parse_tiff (12);
} else if (!memcmp (head,"\0MRM",4)) {
parse_minolta();
} else if (!memcmp (head,"FUJIFILM",8)) {
fseek (ifp, 84, SEEK_SET);
toff = get4();
tlen = get4();
parse_fuji (92);
if (toff > 120) parse_fuji (120);
parse_tiff (toff+12);
} else if (!memcmp (head,"RIFF",4)) {
fseek (ifp, 0, SEEK_SET);
parse_riff(0);
} else if (!memcmp (head,"DSC-Image",9))
parse_rollei();
else if (!memcmp (head,"FOVb",4))
parse_foveon();
parse_jpeg(0);
}
int main(int argc, char **argv)
{
int arg;
if (argc == 1)
{
fprintf (stderr,
"\nRaw Photo Parser"
"\nby Dave Coffin, dcoffin a cybercom o net"
"\n\nUsage: %s file1.crw file2.crw ...\n", argv[0]);
return 1;
}
for (arg=1; arg < argc; arg++)
{
fname = argv[arg];
ifp = fopen (fname,"rb");
if (!ifp) {
perror (fname);
continue;
}
printf ("\nParsing %s:\n", fname);
identify();
fclose (ifp);
}
return 0;
}
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