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| == pit.bin file reader ==
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| <source lang="c">
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| /*
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| * pitread.c -- pit.bin file reader by Ludo6431 <ludolacost_gm@il_com>
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| */
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|
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| #include <stdlib.h>
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| #include <stdio.h>
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| #include <stdarg.h>
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| #include <string.h>
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| #include <time.h>
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|
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| typedef unsigned char u8;
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| typedef unsigned short u16;
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| typedef unsigned int u32;
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| #ifndef BIT
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| # define BIT(b) (1<<(b))
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| #endif
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|
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| void mexit(int ret, char *format, ...) {
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| if(format) {
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| va_list ap;
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| va_start(ap, format);
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| vfprintf(stderr, format, ap);
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| fprintf(stderr, "\n");
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| va_end(ap);
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| }
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| exit(ret);
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| }
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|
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| typedef struct PIT_HDR sPIT_HDR;
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| struct PIT_HDR {
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| u32 magic;
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| u32 dunno1; // "00_1"
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| u16 slotsnum; // 3000 slots in the file
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| u16 msbfolderctr;
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| u16 lsbfolderctr; // next folder's number will be ++folderctr
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| u16 photoctr; // next photo's number will be ++photoctr
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| u16 dunno2; // 0x0000
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| u16 framectr; // next frame's number will be ++framectr
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| u16 checksum; // crc16 of whole file
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| u16 hdrsize; // 0x18
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| };
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|
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| #define F_DIRNUM(f) (((f)&0x1)*100 + ((f)>>1)&0x7f) // 8bits (100-129)
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| #define F_ENTNUM(f) ((((f)>>11)&0x7f)+1) // 7bits (0-99)
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| #define F_STICKER(f) (((f)>>18)&0x3)
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| #define F_TYPE(f) (((f)>>20)&0x1)
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| typedef struct PIT_ENTRY sPIT_ENTRY;
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| struct PIT_ENTRY {
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| u32 date;
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| u8 dunno[8];
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| u32 flags; // (bit0: hundreds' digit of folder num; bit1-7: tens' digits of folder num; bit8-10: UNKNOWN (0); bit11-17: photo's number minus 1; bit18-19: sticker 0: None, 1: Star, 2: Clover, 3: Heart; bit20: type 0:photo, 1:frame; bit21-31: UNKNOWN (0))
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| };
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|
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| int main(int argc, char *argv[]) {
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| if(argc!=2) mexit(1, "Usage:\n\t%s <pit.bin>", argv[0]);
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|
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| char *fname = argv[1];
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| FILE *fd = fopen(fname, "rb+");
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| if(!fd) mexit(1, "Can't open file \"%s\"!", fname);
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|
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| fseek(fd, 0, SEEK_END);
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| unsigned fsize = ftell(fd);
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| rewind(fd);
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|
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| sPIT_HDR hdr;
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|
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| if(fread((void *)&hdr, 1, sizeof(sPIT_HDR), fd)!=sizeof(sPIT_HDR)) {
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| fclose(fd);
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| mexit(1, "Can't read file \"%s\"!", fname);
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| }
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|
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| printf("magic : \"%c%c%c%c\"\n", hdr.magic>>24, (hdr.magic>>16)&0xFF, (hdr.magic>>8)&0xFF, hdr.magic&0xFF);
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| printf("dunno1 : \"%c%c%c%c\"\n", hdr.dunno1&0xFF, (hdr.dunno1>>8)&0xFF, (hdr.dunno1>>16)&0xFF, hdr.dunno1>>24);
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| printf("slotsnum : %d\n", hdr.slotsnum);
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| printf("folderctr : %d%02d\n", hdr.msbfolderctr, hdr.lsbfolderctr);
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| printf("photoctr : %d\n", hdr.photoctr);
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| printf("framectr : %d\n", hdr.framectr);
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| printf("checksum : 0x%02x\n", hdr.checksum);
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| printf("headersize : %d\n", hdr.hdrsize);
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|
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| // jump after the header
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| fseek(fd, hdr.hdrsize, SEEK_SET);
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|
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| u32 i, photocnt=0, framecnt=0, offset;
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| sPIT_ENTRY entry;
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| for(i=0; i<hdr.slotsnum; i++) {
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| offset = ftell(fd);
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| if(fread((void *)&entry, 1, sizeof(sPIT_ENTRY), fd)!=sizeof(sPIT_ENTRY)) {
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| fclose(fd);
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| mexit(1, "Can't read file \"%s\" (after %d+%d valid entries)!", fname, photocnt, framecnt);
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| }
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|
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| if(!entry.date) continue;
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|
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| switch(F_TYPE(entry.flags)) {
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| case 0: // photo
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| photocnt++;
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| printf("-- photo%04d -- (slot%d in file)\n", photocnt, (offset-hdr.hdrsize)>>4);
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| break;
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| case 1: // frame
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| framecnt++;
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| printf("-- frame%04d -- (slot%d in file)\n", framecnt, (offset-hdr.hdrsize)>>4);
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| break;
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| default:
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| break;
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| }
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|
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| struct tm ttm;
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| time_t stm;
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| bzero(&ttm, sizeof(ttm));
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| ttm.tm_year = 2000 - 1900; // 2000
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| ttm.tm_mon = 0; // january
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| ttm.tm_mday = 1; // 1st
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| stm = mktime(&ttm);
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| stm += entry.date;
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|
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| printf(" date(UTC) : %s", asctime(gmtime(&stm)));
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| printf(" folder : %d\n", F_DIRNUM(entry.flags));
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| printf(" number : %d\n", F_ENTNUM(entry.flags));
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|
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| char fname[128];
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| switch(F_TYPE(entry.flags)) {
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| case 0:
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| printf(" sticker : %d\n", F_STICKER(entry.flags));
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| sprintf(fname, "/DCIM/%03dNIN02/HNI_%04d.JPG", F_DIRNUM(entry.flags), F_ENTNUM(entry.flags));
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| break;
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| case 1:
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| sprintf(fname, "/private/ds/app/484E494A/DCIM/%03dNIN02/HNI_%04d.JPG", F_DIRNUM(entry.flags), F_ENTNUM(entry.flags));
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| break;
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| default:
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| break;
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| }
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|
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| printf(" filename : %s\n", fname);
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| }
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| printf("The file contains %d photos and %d frames.\n", photocnt, framecnt);
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|
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| fclose(fd);
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| }
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| </source>
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