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1081 lines
26 KiB
1081 lines
26 KiB
15 years ago
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/*
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Raw Photo Parser
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Copyright 2004 by Dave Coffin, dcoffin a cybercom o net
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This program extracts thumbnail images (preferably JPEGs)
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from any raw digital camera formats that have them, and
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shows table contents.
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$Revision: 1.36 $
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$Date: 2005/05/10 21:43:10 $
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*/
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/* Hacked for thumbnail extraction in KDE by
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Steffen Hansen <hansen@kde.org>
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Based on parse.c and parts of dcraw.c by Dave Coffin
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <time.h>
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#include <sys/types.h>
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#ifdef WIN32
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#include <winsock2.h>
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typedef __int64 INT64;
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#else
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#include <netinet/in.h>
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typedef long long INT64;
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#endif
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/*
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TIFF and CIFF data blocks can be quite large.
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Display only the first DLEN bytes.
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*/
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#ifndef DLEN
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#define DLEN 768
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#endif
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typedef unsigned char uchar;
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/*typedef unsigned short ushort;*/
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FILE *ifp;
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short order;
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char *fname;
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char make[128], model[128], model2[128], thumb_head[128];
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int width, height, offset, length, bps, is_dng;
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int thumb_offset, thumb_length, thumb_layers;
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float cam_mul[4], pre_mul[4], coeff[3][4];
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#define camera_red cam_mul[0]
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#define camera_blue cam_mul[2]
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/*float flash_used, canon_5814;*/
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time_t timestamp;
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/*int data_offset, meta_offset*/
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int raw_height, raw_width, top_margin, left_margin;
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static int flip = 0;
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struct decode {
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struct decode *branch[2];
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int leaf;
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} first_decode[640], *free_decode;
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#define CLASS
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#define FORC3 for (c=0; c < 3; c++)
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#define FORC4 for (c=0; c < 4; c++)
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#define FORCC for (c=0; c < colors; c++)
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/*
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Get a 2-byte integer, making no assumptions about CPU byte order.
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Nor should we assume that the compiler evaluates left-to-right.
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*/
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ushort get2()
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{
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uchar a, b;
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a = fgetc(ifp); b = fgetc(ifp);
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if (order == 0x4949) /* "II" means little-endian */
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return a | b << 8;
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else /* "MM" means big-endian */
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return a << 8 | b;
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}
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/*
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Same for a 4-byte integer.
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*/
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int get4()
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{
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uchar a, b, c, d;
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a = fgetc(ifp); b = fgetc(ifp);
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c = fgetc(ifp); d = fgetc(ifp);
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if (order == 0x4949)
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return a | b << 8 | c << 16 | d << 24;
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else
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return a << 24 | b << 16 | c << 8 | d;
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}
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void tiff_dump(int base, int tag, int type, int count, int level)
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{
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int save, j, num, den;
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uchar c;
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int size[] = { 1,1,1,2,4,8,1,1,2,4,8,4,8 };
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if (count * size[type < 13 ? type:0] > 4)
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fseek (ifp, get4()+base, SEEK_SET);
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save = ftell(ifp);
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fseek (ifp, save, SEEK_SET);
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}
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void nikon_decrypt (uchar ci, uchar cj, int tag, int i, int size, uchar *buf)
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{
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}
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int parse_tiff_ifd (int base, int level);
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void nef_parse_makernote (base)
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{
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int offset=0, entries, tag, type, count, val, save;
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unsigned serial=0, key=0;
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uchar buf91[630], buf97[608], buf98[31];
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short sorder;
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char buf[10];
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/*
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The MakerNote might have its own TIFF header (possibly with
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its own byte-order!), or it might just be a table.
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*/
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sorder = order;
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fread (buf, 1, 10, ifp);
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if (!strcmp (buf,"Nikon")) { /* starts with "Nikon\0\2\0\0\0" ? */
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base = ftell(ifp);
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order = get2(); /* might differ from file-wide byteorder */
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val = get2(); /* should be 42 decimal */
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offset = get4();
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fseek (ifp, offset-8, SEEK_CUR);
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} else if (!strncmp (buf,"FUJIFILM",8) ||
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!strcmp (buf,"Panasonic")) {
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order = 0x4949;
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fseek (ifp, 2, SEEK_CUR);
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} else if (!strcmp (buf,"OLYMP") ||
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!strcmp (buf,"LEICA") ||
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!strcmp (buf,"EPSON"))
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fseek (ifp, -2, SEEK_CUR);
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else if (!strcmp (buf,"AOC"))
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fseek (ifp, -4, SEEK_CUR);
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else
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fseek (ifp, -10, SEEK_CUR);
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entries = get2();
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if (entries > 100) return;
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while (entries--) {
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save = ftell(ifp);
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tag = get2();
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type = get2();
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count= get4();
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tiff_dump (base, tag, type, count, 2);
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if (tag == 0x1d)
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fscanf (ifp, "%d", &serial);
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if (tag == 0x91)
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fread (buf91, sizeof buf91, 1, ifp);
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if (tag == 0x97)
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fread (buf97, sizeof buf97, 1, ifp);
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if (tag == 0x98)
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fread (buf98, sizeof buf98, 1, ifp);
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if (tag == 0xa7)
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key = fgetc(ifp)^fgetc(ifp)^fgetc(ifp)^fgetc(ifp);
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if (tag == 0x100 && type == 7 && !strncmp(make,"OLYMPUS",7)) {
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thumb_offset = ftell(ifp);
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thumb_length = count;
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}
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if (tag == 0x280 && type == 1) { /* EPSON */
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strncpy (thumb_head, "\xff", sizeof(thumb_head) );
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thumb_offset = ftell(ifp)+1;
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thumb_length = count-1;
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}
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if (strstr(make,"Minolta") || strstr(make,"MINOLTA")) {
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switch (tag) {
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case 0x81:
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thumb_offset = ftell(ifp);
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thumb_length = count;
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break;
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case 0x88:
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thumb_offset = get4() + base;
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break;
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case 0x89:
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thumb_length = get4();
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}
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}
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if (!strcmp (buf,"OLYMP") && tag >> 8 == 0x20)
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parse_tiff_ifd (base, 3);
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fseek (ifp, save+12, SEEK_SET);
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}
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nikon_decrypt (serial, key, 0x91, 4, sizeof buf91, buf91);
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nikon_decrypt (serial, key, 0x97, 284, sizeof buf97, buf97);
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nikon_decrypt (serial, key, 0x98, 4, sizeof buf98, buf98);
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order = sorder;
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}
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void nef_parse_exif(int base)
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{
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int entries, tag, type, count, save;
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entries = get2();
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while (entries--) {
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save = ftell(ifp);
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tag = get2();
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type = get2();
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count= get4();
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tiff_dump (base, tag, type, count, 1);
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if (tag == 0x927c)
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nef_parse_makernote (base);
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fseek (ifp, save+12, SEEK_SET);
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}
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}
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int parse_tiff_ifd (int base, int level)
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{
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int entries, tag, type, count, slen, save, save2, val, i;
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int comp=0;
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static const int flip_map[] = { 0,1,3,2,4,6,7,5 };
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entries = get2();
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if (entries > 255) return 1;
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while (entries--) {
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save = ftell(ifp);
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tag = get2();
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type = get2();
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count= get4();
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slen = count;
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if (slen > 128) slen = 128;
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tiff_dump (base, tag, type, count, level);
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save2 = ftell(ifp);
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if (type == 3) /* short int */
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val = get2();
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else
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val = get4();
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fseek (ifp, save2, SEEK_SET);
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if (tag > 50700 && tag < 50800)
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is_dng = 1;
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if (level == 3) { /* Olympus E-1 and E-300 */
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if (type == 4) {
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if (tag == 0x101)
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thumb_offset = val;
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else if (tag == 0x102)
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thumb_length = val;
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}
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goto cont;
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}
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switch (tag) {
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case 0x100: /* ImageWidth */
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if (!width) width = val;
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break;
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case 0x101: /* ImageHeight */
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if (!height) height = val;
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break;
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case 0x102: /* Bits per sample */
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if (bps) break;
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bps = val;
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if (count == 1)
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thumb_layers = 1;
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break;
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case 0x103: /* Compression */
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comp = val;
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break;
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case 0x10f: /* Make tag */
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fgets (make, slen, ifp);
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break;
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case 0x110: /* Model tag */
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fgets (model, slen, ifp);
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break;
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case 33405: /* Model2 tag */
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fgets (model2, slen, ifp);
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break;
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case 0x111: /* StripOffset */
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if (!offset || is_dng) offset = val;
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break;
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||
14 years ago
|
case 0x112: /* Qt::Orientation */
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15 years ago
|
flip = flip_map[(val-1) & 7];
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break;
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||
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case 0x117: /* StripByteCounts */
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||
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if (!length || is_dng) length = val;
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if (offset > val && !strncmp(make,"KODAK",5) && !is_dng)
|
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offset -= val;
|
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break;
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||
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case 0x14a: /* SubIFD tag */
|
||
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save2 = ftell(ifp);
|
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for (i=0; i < count; i++) {
|
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fseek (ifp, save2 + i*4, SEEK_SET);
|
||
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fseek (ifp, get4()+base, SEEK_SET);
|
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|
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parse_tiff_ifd (base, level+1);
|
||
|
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}
|
||
|
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break;
|
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|
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case 0x201:
|
||
|
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if (strncmp(make,"OLYMPUS",7) || !thumb_offset)
|
||
|
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thumb_offset = val;
|
||
|
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break;
|
||
|
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case 0x202:
|
||
|
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if (strncmp(make,"OLYMPUS",7) || !thumb_length)
|
||
|
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thumb_length = val;
|
||
|
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break;
|
||
|
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case 34665:
|
||
|
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fseek (ifp, get4()+base, SEEK_SET);
|
||
|
|
nef_parse_exif (base);
|
||
|
|
break;
|
||
|
|
case 50706:
|
||
|
|
is_dng = 1;
|
||
|
|
}
|
||
|
|
cont:
|
||
|
|
fseek (ifp, save+12, SEEK_SET);
|
||
|
|
}
|
||
|
|
if ((comp == 6 && !strcmp(make,"Canon")) ||
|
||
|
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(comp == 7 && is_dng)) {
|
||
|
|
thumb_offset = offset;
|
||
|
|
thumb_length = length;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Parse a TIFF file looking for camera model and decompress offsets.
|
||
|
|
*/
|
||
|
|
void parse_tiff (int base)
|
||
|
|
{
|
||
|
|
int doff, spp=3, ifd=0;
|
||
|
|
|
||
|
|
width = height = offset = length = bps = is_dng = 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;
|
||
|
|
}
|
||
|
|
if (is_dng) return;
|
||
|
|
|
||
|
|
if (strncmp(make,"KODAK",5))
|
||
|
|
thumb_layers = 0;
|
||
|
|
if (!strncmp(make,"Kodak",5)) {
|
||
|
|
fseek (ifp, 12+base, SEEK_SET);
|
||
|
|
puts ("\nSpecial Kodak image directory:");
|
||
|
|
parse_tiff_ifd (base, 0);
|
||
|
|
}
|
||
|
|
if (!strncmp(model,"DCS460A",7)) {
|
||
|
|
spp = 1;
|
||
|
|
thumb_layers = 0;
|
||
|
|
}
|
||
|
|
if (!thumb_length && offset) {
|
||
|
|
thumb_offset = offset;
|
||
|
|
sprintf (thumb_head, "P%d %d %d %d\n",
|
||
|
|
spp > 1 ? 6:5, width, height, (1 << bps) - 1);
|
||
|
|
thumb_length = width * height * spp * ((bps+7)/8);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
strncpy (thumb_head, "\xff", sizeof(thumb_head) );
|
||
|
|
thumb_offset++;
|
||
|
|
thumb_length--;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Parse a CIFF file, better known as Canon CRW format.
|
||
|
|
*/
|
||
|
|
void parse_ciff (int offset, int length, int level /*unused*/)
|
||
|
|
{
|
||
|
|
int tboff, nrecs, i, c, type, len, roff, aoff, save, wbi=-1;
|
||
|
|
static const int remap[] = { 1,2,3,4,5,1 };
|
||
|
|
static const int remap_10d[] = { 0,1,3,4,5,6,0,0,2,8 };
|
||
|
|
static const int remap_s70[] = { 0,1,2,9,4,3,6,7,8,9,10,0,0,0,7,0,0,8 };
|
||
|
|
ushort key[] = { 0x410, 0x45f3 };
|
||
|
|
|
||
|
|
if (strcmp(model,"Canon PowerShot G6") &&
|
||
|
|
strcmp(model,"Canon PowerShot S60") &&
|
||
|
|
strcmp(model,"Canon PowerShot S70") &&
|
||
|
|
strcmp(model,"Canon PowerShot Pro1"))
|
||
|
|
key[0] = key[1] = 0;
|
||
|
|
fseek (ifp, offset+length-4, SEEK_SET);
|
||
|
|
tboff = get4() + offset;
|
||
|
|
fseek (ifp, tboff, SEEK_SET);
|
||
|
|
nrecs = get2();
|
||
|
|
if (nrecs > 100) return;
|
||
|
|
for (i = 0; i < nrecs; i++) {
|
||
|
|
type = get2();
|
||
|
|
len = get4();
|
||
|
|
roff = get4();
|
||
|
|
aoff = offset + roff;
|
||
|
|
save = ftell(ifp);
|
||
|
|
if (type == 0x080a) { /* Get the camera make and model */
|
||
|
|
fseek (ifp, aoff, SEEK_SET);
|
||
|
|
fread (make, 64, 1, ifp);
|
||
|
|
fseek (ifp, aoff+strlen(make)+1, SEEK_SET);
|
||
|
|
fread (model, 64, 1, ifp);
|
||
|
|
}
|
||
|
|
if (type == 0x102a) { /* Find the White Balance index */
|
||
|
|
fseek (ifp, aoff+14, SEEK_SET); /* 0=auto, 1=daylight, 2=cloudy ... */
|
||
|
|
wbi = get2();
|
||
|
|
if (((!strcmp(model,"Canon EOS DIGITAL REBEL") ||
|
||
|
|
!strcmp(model,"Canon EOS 300D DIGITAL"))) && wbi == 6)
|
||
|
|
wbi++;
|
||
|
|
}
|
||
|
|
if (type == 0x102c) { /* Get white balance (G2) */
|
||
|
|
if (!strcmp(model,"Canon PowerShot G1") ||
|
||
|
|
!strcmp(model,"Canon PowerShot Pro90 IS")) {
|
||
|
|
fseek (ifp, aoff+120, SEEK_SET);
|
||
|
|
FORC4 cam_mul[c ^ 2] = get2();
|
||
|
|
} else {
|
||
|
|
fseek (ifp, aoff+100, SEEK_SET);
|
||
|
|
goto common;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (type == 0x0032) { /* Get white balance (D30 & G3) */
|
||
|
|
if (!strcmp(model,"Canon EOS D30")) {
|
||
|
|
fseek (ifp, aoff+72, SEEK_SET);
|
||
|
|
common:
|
||
|
|
camera_red = get2() ^ key[0];
|
||
|
|
camera_red =(get2() ^ key[1]) / camera_red;
|
||
|
|
camera_blue = get2() ^ key[0];
|
||
|
|
camera_blue /= get2() ^ key[1];
|
||
|
|
} else if (!strcmp(model,"Canon PowerShot G6") ||
|
||
|
|
!strcmp(model,"Canon PowerShot S60") ||
|
||
|
|
!strcmp(model,"Canon PowerShot S70")) {
|
||
|
|
fseek (ifp, aoff+96 + remap_s70[wbi]*8, SEEK_SET);
|
||
|
|
goto common;
|
||
|
|
} else if (!strcmp(model,"Canon PowerShot Pro1")) {
|
||
|
|
fseek (ifp, aoff+96 + wbi*8, SEEK_SET);
|
||
|
|
goto common;
|
||
|
|
} else {
|
||
|
|
fseek (ifp, aoff+80 + (wbi < 6 ? remap[wbi]*8 : 0), SEEK_SET);
|
||
|
|
if (!camera_red)
|
||
|
|
goto common;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (type == 0x10a9) { /* Get white balance (D60) */
|
||
|
|
if (!strcmp(model,"Canon EOS 10D"))
|
||
|
|
wbi = remap_10d[wbi];
|
||
|
|
fseek (ifp, aoff+2 + wbi*8, SEEK_SET);
|
||
|
|
camera_red = get2();
|
||
|
|
camera_red /= get2();
|
||
|
|
camera_blue = get2();
|
||
|
|
camera_blue = get2() / camera_blue;
|
||
|
|
}
|
||
|
|
/* Skip this for now /steffen */
|
||
|
|
#if 0
|
||
|
|
if (type == 0x1030 && (wbi == 6 || wbi == 15)) {
|
||
|
|
fseek (ifp, aoff, SEEK_SET); /* Get white sample */
|
||
|
|
ciff_block_1030();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (type == 0x1031) { /* Get the raw width and height */
|
||
|
|
fseek (ifp, aoff+2, SEEK_SET);
|
||
|
|
raw_width = get2();
|
||
|
|
raw_height = get2();
|
||
|
|
}
|
||
|
|
if (type == 0x180e) { /* Get the timestamp */
|
||
|
|
fseek (ifp, aoff, SEEK_SET);
|
||
|
|
timestamp = get4();
|
||
|
|
}
|
||
|
|
if (type == 0x580e)
|
||
|
|
timestamp = len;
|
||
|
|
#if 0
|
||
|
|
if (type == 0x5813)
|
||
|
|
flash_used = *((float *) &len);
|
||
|
|
if (type == 0x5814)
|
||
|
|
canon_5814 = *((float *) &len);
|
||
|
|
#endif
|
||
|
|
if (type == 0x1810) { /* Get the rotation */
|
||
|
|
fseek (ifp, aoff+12, SEEK_SET);
|
||
|
|
flip = get4();
|
||
|
|
}
|
||
|
|
/* Skip this for now /steffen */
|
||
|
|
#if 0
|
||
|
|
if (type == 0x1835) { /* Get the decoder table */
|
||
|
|
fseek (ifp, aoff, SEEK_SET);
|
||
|
|
crw_init_tables (get4());
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (type == 0x2007) { /* Found the JPEG thumbnail */
|
||
|
|
thumb_offset = aoff;
|
||
|
|
thumb_length = len;
|
||
|
|
}
|
||
|
|
if (type >> 8 == 0x28 || type >> 8 == 0x30) /* Get sub-tables */
|
||
|
|
parse_ciff(aoff, len, level+1);
|
||
|
|
fseek (ifp, save, SEEK_SET);
|
||
|
|
}
|
||
|
|
if (wbi == 0 && !strcmp(model,"Canon EOS D30"))
|
||
|
|
camera_red = -1; /* Use my auto WB for this photo */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void parse_mos(int level)
|
||
|
|
{
|
||
|
|
uchar data[256];
|
||
|
|
int i, j, skip, save;
|
||
|
|
char *cp;
|
||
|
|
|
||
|
|
save = ftell(ifp);
|
||
|
|
while (1) {
|
||
|
|
fread (data, 1, 8, ifp);
|
||
|
|
if (strcmp(data,"PKTS")) break;
|
||
|
|
strcpy (model, "Valeo");
|
||
|
|
fread (data, 1, 40, ifp);
|
||
|
|
skip = get4();
|
||
|
|
if (!strcmp(data,"icc_camera_to_tone_matrix")) {
|
||
|
|
for (i=0; i < skip/4; i++) {
|
||
|
|
j = get4();
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (!strcmp(data,"JPEG_preview_data")) {
|
||
|
|
thumb_head[0] = 0;
|
||
|
|
thumb_offset = ftell(ifp);
|
||
|
|
thumb_length = skip;
|
||
|
|
}
|
||
|
|
fread (data, 1, sizeof data, ifp);
|
||
|
|
fseek (ifp, -sizeof data, SEEK_CUR);
|
||
|
|
data[sizeof data - 1] = 0;
|
||
|
|
while ((cp=index(data,'\n')))
|
||
|
|
*cp = ' ';
|
||
|
|
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);
|
||
|
|
if (!strcmp(line,"HDR"))
|
||
|
|
thumb_offset = atoi(val);
|
||
|
|
if (!strcmp(line,"TX "))
|
||
|
|
width = atoi(val);
|
||
|
|
if (!strcmp(line,"TY "))
|
||
|
|
height = atoi(val);
|
||
|
|
} while (strncmp(line,"EOHD",4));
|
||
|
|
strcpy (make, "Rollei");
|
||
|
|
strcpy (model, "d530flex");
|
||
|
|
thumb_length = width*height*2;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rollei_decode (FILE *tfp)
|
||
|
|
{
|
||
|
|
ushort data;
|
||
|
|
int row, col;
|
||
|
|
|
||
|
|
fseek (ifp, thumb_offset, SEEK_SET);
|
||
|
|
fprintf (tfp, "P6\n%d %d\n255\n", width, height);
|
||
|
|
for (row=0; row < height; row++)
|
||
|
|
for (col=0; col < width; col++) {
|
||
|
|
fread (&data, 2, 1, ifp);
|
||
|
|
data = ntohs(data);
|
||
|
|
putc (data << 3, tfp);
|
||
|
|
putc (data >> 5 << 2, tfp);
|
||
|
|
putc (data >> 11 << 3, tfp);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
ushort sget2 (uchar *s)
|
||
|
|
{
|
||
|
|
return s[0] + (s[1]<<8);
|
||
|
|
}
|
||
|
|
|
||
|
|
int sget4 (uchar *s)
|
||
|
|
{
|
||
|
|
return s[0] + (s[1]<<8) + (s[2]<<16) + (s[3]<<24);
|
||
|
|
}
|
||
|
|
|
||
|
|
void parse_foveon()
|
||
|
|
{
|
||
|
|
int entries, img=0, 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);
|
||
|
|
if (get4() != (0x20434553 | (tag << 24))) {
|
||
|
|
printf ("Bad Section identifier at %6x\n", off);
|
||
|
|
goto next;
|
||
|
|
}
|
||
|
|
val = get4();
|
||
|
|
switch (tag) {
|
||
|
|
case 0x32414d49: /* IMA2 */
|
||
|
|
case 0x47414d49: /* IMAG */
|
||
|
|
if (++img == 2) { /* second image */
|
||
|
|
thumb_offset = off;
|
||
|
|
thumb_length = 1;
|
||
|
|
}
|
||
|
|
printf ("type %d, " , get4());
|
||
|
|
printf ("format %2d, " , get4());
|
||
|
|
printf ("columns %4d, " , get4());
|
||
|
|
printf ("rows %4d, " , get4());
|
||
|
|
printf ("rowsize %d\n" , get4());
|
||
|
|
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 0:
|
||
|
|
case 6:
|
||
|
|
printf ("%7d", sget2(dp));
|
||
|
|
dp += 2;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
case 2:
|
||
|
|
printf (" %d", sget4(dp));
|
||
|
|
dp += 4;
|
||
|
|
break;
|
||
|
|
case 3: {
|
||
|
|
union { int ival; float fval; } __t;
|
||
|
|
__t.ival = sget4(dp);
|
||
|
|
printf (" %9f", __t.fval);
|
||
|
|
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 (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"))
|
||
|
|
strncpy (make, value, sizeof(make));
|
||
|
|
if (!strcmp (name,"CAMMODEL"))
|
||
|
|
strncpy (model, value, sizeof(value));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
next:
|
||
|
|
fseek (ifp, save, SEEK_SET);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void foveon_tree (unsigned huff[1024], unsigned code)
|
||
|
|
{
|
||
|
|
struct decode *cur;
|
||
|
|
int i, len;
|
||
|
|
|
||
|
|
cur = free_decode++;
|
||
|
|
if (code) {
|
||
|
|
for (i=0; i < 1024; i++)
|
||
|
|
if (huff[i] == code) {
|
||
|
|
cur->leaf = i;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((len = code >> 27) > 26) return;
|
||
|
|
code = (len+1) << 27 | (code & 0x3ffffff) << 1;
|
||
|
|
|
||
|
|
cur->branch[0] = free_decode;
|
||
|
|
foveon_tree (huff, code);
|
||
|
|
cur->branch[1] = free_decode;
|
||
|
|
foveon_tree (huff, code+1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void foveon_decode (FILE *tfp)
|
||
|
|
{
|
||
|
|
int bwide, row, col, bit=-1, c, i;
|
||
|
|
char *buf;
|
||
|
|
struct decode *dindex;
|
||
|
|
short pred[3];
|
||
|
|
unsigned huff[1024], bitbuf=0;
|
||
|
|
|
||
|
|
fseek (ifp, thumb_offset+16, SEEK_SET);
|
||
|
|
width = get4();
|
||
|
|
height = get4();
|
||
|
|
bwide = get4();
|
||
|
|
fprintf (tfp, "P6\n%d %d\n255\n", width, height);
|
||
|
|
if (bwide > 0) {
|
||
|
|
buf = malloc(bwide);
|
||
|
|
for (row=0; row < height; row++) {
|
||
|
|
fread (buf, 1, bwide, ifp);
|
||
|
|
fwrite (buf, 3, width, tfp);
|
||
|
|
}
|
||
|
|
free (buf);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
for (i=0; i < 256; i++)
|
||
|
|
huff[i] = get4();
|
||
|
|
memset (first_decode, 0, sizeof first_decode);
|
||
|
|
free_decode = first_decode;
|
||
|
|
foveon_tree (huff, 0);
|
||
|
|
|
||
|
|
for (row=0; row < height; row++) {
|
||
|
|
memset (pred, 0, sizeof pred);
|
||
|
|
if (!bit) get4();
|
||
|
|
for (col=bit=0; col < width; col++) {
|
||
|
|
for (c=0; c < 3; c++) {
|
||
|
|
for (dindex=first_decode; dindex->branch[0]; ) {
|
||
|
|
if ((bit = (bit-1) & 31) == 31)
|
||
|
|
for (i=0; i < 4; i++)
|
||
|
|
bitbuf = (bitbuf << 8) + fgetc(ifp);
|
||
|
|
dindex = dindex->branch[bitbuf >> bit & 1];
|
||
|
|
}
|
||
|
|
pred[c] += dindex->leaf;
|
||
|
|
fputc (pred[c], tfp);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void kodak_yuv_decode (FILE *tfp)
|
||
|
|
{
|
||
|
|
uchar c, blen[384];
|
||
|
|
unsigned row, col, len, bits=0;
|
||
|
|
INT64 bitbuf=0;
|
||
|
|
int i, li=0, si, diff, six[6], y[4], cb=0, cr=0, rgb[3];
|
||
|
|
ushort *out, *op;
|
||
|
|
|
||
|
|
fseek (ifp, thumb_offset, SEEK_SET);
|
||
|
|
width = (width+1) & -2;
|
||
|
|
height = (height+1) & -2;
|
||
|
|
fprintf (tfp, "P6\n%d %d\n65535\n", width, height);
|
||
|
|
out = malloc (width * 12);
|
||
|
|
if (!out) {
|
||
|
|
fprintf (stderr, "kodak_yuv_decode() malloc failed!\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
for (row=0; row < height; row+=2) {
|
||
|
|
for (col=0; col < width; col+=2) {
|
||
|
|
if ((col & 127) == 0) {
|
||
|
|
len = (width - col + 1) * 3 & -4;
|
||
|
|
if (len > 384) len = 384;
|
||
|
|
for (i=0; i < len; ) {
|
||
|
|
c = fgetc(ifp);
|
||
|
|
blen[i++] = c & 15;
|
||
|
|
blen[i++] = c >> 4;
|
||
|
|
}
|
||
|
|
li = bitbuf = bits = y[1] = y[3] = cb = cr = 0;
|
||
|
|
if (len % 8 == 4) {
|
||
|
|
bitbuf = fgetc(ifp) << 8;
|
||
|
|
bitbuf += fgetc(ifp);
|
||
|
|
bits = 16;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (si=0; si < 6; si++) {
|
||
|
|
len = blen[li++];
|
||
|
|
if (bits < len) {
|
||
|
|
for (i=0; i < 32; i+=8)
|
||
|
|
bitbuf += (INT64) fgetc(ifp) << (bits+(i^8));
|
||
|
|
bits += 32;
|
||
|
|
}
|
||
|
|
diff = bitbuf & (0xffff >> (16-len));
|
||
|
|
bitbuf >>= len;
|
||
|
|
bits -= len;
|
||
|
|
if ((diff & (1 << (len-1))) == 0)
|
||
|
|
diff -= (1 << len) - 1;
|
||
|
|
six[si] = diff;
|
||
|
|
}
|
||
|
|
y[0] = six[0] + y[1];
|
||
|
|
y[1] = six[1] + y[0];
|
||
|
|
y[2] = six[2] + y[3];
|
||
|
|
y[3] = six[3] + y[2];
|
||
|
|
cb += six[4];
|
||
|
|
cr += six[5];
|
||
|
|
for (i=0; i < 4; i++) {
|
||
|
|
op = out + ((i >> 1)*width + col+(i & 1)) * 3;
|
||
|
|
rgb[0] = y[i] + 1.40200/2 * cr;
|
||
|
|
rgb[1] = y[i] - 0.34414/2 * cb - 0.71414/2 * cr;
|
||
|
|
rgb[2] = y[i] + 1.77200/2 * cb;
|
||
|
|
for (c=0; c < 3; c++)
|
||
|
|
if (rgb[c] > 0) op[c] = htons(rgb[c]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fwrite (out, sizeof *out, width*6, tfp);
|
||
|
|
}
|
||
|
|
free(out);
|
||
|
|
}
|
||
|
|
|
||
|
|
void parse_phase_one (int base)
|
||
|
|
{
|
||
|
|
unsigned entries, tag, type, len, data, save;
|
||
|
|
char str[256];
|
||
|
|
|
||
|
|
fseek (ifp, base + 8, SEEK_SET);
|
||
|
|
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\n",
|
||
|
|
tag, type, len, data);
|
||
|
|
if (type == 1 && len < 256) {
|
||
|
|
fseek (ifp, base + data, SEEK_SET);
|
||
|
|
fread (str, 256, 1, ifp);
|
||
|
|
puts (str);
|
||
|
|
}
|
||
|
|
if (tag == 0x110) {
|
||
|
|
thumb_offset = data + base;
|
||
|
|
thumb_length = len;
|
||
|
|
}
|
||
|
|
fseek (ifp, save, SEEK_SET);
|
||
|
|
}
|
||
|
|
strcpy (make, "Phase One");
|
||
|
|
strcpy (model, "unknown");
|
||
|
|
}
|
||
|
|
|
||
|
|
void parse_jpeg (int offset)
|
||
|
|
{
|
||
|
|
int len, save, hlen;
|
||
|
|
|
||
|
|
fseek (ifp, offset, SEEK_SET);
|
||
|
|
if (fgetc(ifp) != 0xff || fgetc(ifp) != 0xd8) return;
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
char *raw_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 or no thumbnail is found
|
||
|
|
*/
|
||
|
|
int identify(FILE* tfp)
|
||
|
|
{
|
||
|
|
char head[32], *thumb, *rgb, *cp;
|
||
|
|
unsigned hlen, fsize, toff, tlen, lsize, i;
|
||
|
|
|
||
|
|
make[0] = model[0] = model2[0] = is_dng = 0;
|
||
|
|
thumb_head[0] = thumb_offset = thumb_length = thumb_layers = 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 = raw_memmem (head, 32, "MMMMRawT", 8)) ||
|
||
|
|
(cp = raw_memmem (head, 32, "IIIITwaR", 8)))
|
||
|
|
parse_phase_one (cp - head);
|
||
|
|
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, "\0MRM", 4))
|
||
|
|
parse_minolta();
|
||
|
|
else if (!memcmp (head, "\xff\xd8\xff\xe1", 4) &&
|
||
|
|
!memcmp (head+6, "Exif", 4)) {
|
||
|
|
parse_tiff (12);
|
||
|
|
thumb_length = 0;
|
||
|
|
} else if (!memcmp (head, "FUJIFILM", 8)) {
|
||
|
|
fseek (ifp, 84, SEEK_SET);
|
||
|
|
toff = get4();
|
||
|
|
tlen = get4();
|
||
|
|
thumb_offset = toff;
|
||
|
|
thumb_length = tlen;
|
||
|
|
} else if (!memcmp (head, "DSC-Image", 9))
|
||
|
|
parse_rollei();
|
||
|
|
else if (!memcmp (head, "FOVb", 4))
|
||
|
|
parse_foveon();
|
||
|
|
fseek (ifp, 8, SEEK_SET);
|
||
|
|
parse_mos(0);
|
||
|
|
fseek (ifp, 3472, SEEK_SET);
|
||
|
|
parse_mos(0);
|
||
|
|
parse_jpeg(0);
|
||
|
|
|
||
|
|
if (!thumb_length) {
|
||
|
|
fprintf (stderr, "Thumbnail image not found\n");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_dng) goto dng_skip;
|
||
|
|
if (!strncmp(model,"DCS Pro",7)) {
|
||
|
|
kodak_yuv_decode (tfp);
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
if (!strcmp(make,"Rollei")) {
|
||
|
|
rollei_decode (tfp);
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
if (!strcmp(make,"SIGMA")) {
|
||
|
|
foveon_decode (tfp);
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
dng_skip:
|
||
|
|
thumb = (char *) malloc(thumb_length);
|
||
|
|
if (!thumb) {
|
||
|
|
fprintf (stderr, "Cannot allocate %d bytes!!\n", thumb_length);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
fseek (ifp, thumb_offset, SEEK_SET);
|
||
|
|
fread (thumb, 1, thumb_length, ifp);
|
||
|
|
if (thumb_layers && !is_dng) {
|
||
|
|
rgb = (char *) malloc(thumb_length);
|
||
|
|
if (!rgb) {
|
||
|
|
fprintf (stderr, "Cannot allocate %d bytes!!\n", thumb_length);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
lsize = thumb_length/3;
|
||
|
|
for (i=0; i < thumb_length; i++)
|
||
|
|
rgb[(i%lsize)*3 + i/lsize] = thumb[i];
|
||
|
|
free(thumb);
|
||
|
|
thumb = rgb;
|
||
|
|
}
|
||
|
|
fputs (thumb_head, tfp);
|
||
|
|
fwrite(thumb, 1, thumb_length, tfp);
|
||
|
|
free (thumb);
|
||
|
|
done:
|
||
|
|
fprintf (stderr, "Thumbnail image written, make=%s, model=%s\n",&(make[0]),&(model[0]));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int extract_thumbnail( FILE* input, FILE* output, int* orientation )
|
||
|
|
{
|
||
|
|
/* Coffin's code has different meaning for orientation
|
||
|
|
values than TIFF, so we map them to TIFF values */
|
||
|
|
static const int flip_map[] = { 0,1,3,2,4,7,5,6 };
|
||
|
|
int rc;
|
||
|
|
ifp = input;
|
||
|
|
rc = identify(output);
|
||
|
|
switch ((flip+3600) % 360) {
|
||
|
|
case 270: flip = 5; break;
|
||
|
|
case 180: flip = 3; break;
|
||
|
|
case 90: flip = 6;
|
||
|
|
}
|
||
|
|
if( orientation ) *orientation = flip_map[flip%7];
|
||
|
|
return rc;
|
||
|
|
}
|