Difference between revisions of "Phtcache.bin"
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Matyapiro31 (talk | contribs) (find myself mistaken but not resolve it.) |
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| Line 2: | Line 2: | ||
00000-00007: Header 1UJQ00_1 | 00000-00007: Header 1UJQ00_1 | ||
00008-0000B: Number of pictures plus 1 (why?) | 00008-0000B: Number of pictures plus 1 (why?) | ||
| − | 0000C-00011: Unknown value | + | 0000C-00011: Unknown static value : B8-0B-01-00-00-00 |
00012-00013: Total number of photos (excluding 2D dups) | 00012-00013: Total number of photos (excluding 2D dups) | ||
00014-00017: Appears to be file size. It's only 32 bits = 4GB max. A few hundred K | 00014-00017: Appears to be file size. It's only 32 bits = 4GB max. A few hundred K | ||
| Line 13: | Line 13: | ||
( I have no clue, all these notes were probably worthless) | ( I have no clue, all these notes were probably worthless) | ||
| − | From 0x0018, one block per picture. Each block is | + | From 0x0018, one block per picture. Each block is 0x152 bytes long and formatted as such: |
| − | 00000-00003: Preferred image file format. Should be MPO\x00 or | + | 00000-00003: Preferred image file format. Should be MPO\x00, JPG\x00 or AVI\x00. |
| − | |||
00004-0000B: Name of image | 00004-0000B: Name of image | ||
0000C-00013: Subfolder of image | 0000C-00013: Subfolder of image | ||
| Line 45: | Line 44: | ||
|- | |- | ||
| Unknown | | Unknown | ||
| − | | | + | | 0x06 |
| seems to be static? | | seems to be static? | ||
|- | |- | ||
| Total number of photos | | Total number of photos | ||
| − | | | + | | 0x02 |
| excluding 2D dups | | excluding 2D dups | ||
|- | |- | ||
| Unknown | | Unknown | ||
| − | | | + | | 0x06 |
| File size? | | File size? | ||
|- | |- | ||
| Pictures Property | | Pictures Property | ||
| − | | | + | | 0x152 * Number of Pictures |
| Index refereed by 3DS Camera | | Index refereed by 3DS Camera | ||
|- | |- | ||
| Line 74: | Line 73: | ||
|- | |- | ||
|} | |} | ||
| − | |||
| − | |||
Revision as of 15:02, 21 March 2013
File header:
00000-00007: Header 1UJQ00_1
00008-0000B: Number of pictures plus 1 (why?)
0000C-00011: Unknown static value : B8-0B-01-00-00-00
00012-00013: Total number of photos (excluding 2D dups)
00014-00017: Appears to be file size. It's only 32 bits = 4GB max. A few hundred K
larger than the actual size of every file in DCIM (?)
1607971 vs DCIM/100NIN = 1441792 vs DCIM = 147560 vs files = 1409024
vs non-disk usage = 1224857
phtcache non-disk = 456024, disk = 458752
phtcache (non) + files (non) = 1680881 - 1607971 = 72910 = 72K hmm...
maybe the 72910 is some kind of checksum?
( I have no clue, all these notes were probably worthless)
From 0x0018, one block per picture. Each block is 0x152 bytes long and formatted as such:
00000-00003: Preferred image file format. Should be MPO\x00, JPG\x00 or AVI\x00.
00004-0000B: Name of image
0000C-00013: Subfolder of image
00014-0001B: Time taken based on "DS epoch" (start of 1/1/2000) (UNIX+946684800)
0001C-00023: Time last viewed?
00024-00027: UNKNOWN
00028-0002B: UNKNOWN
0002C-0002D: UNKNOWN
0002E-0002F: UNKNOWN
00030-0003F: UNKNOWN
00040-00043: File size
File Header
| Name | Size | Description |
|---|---|---|
| Unknown | 0x08 | always 1UJQ00_1 |
| Number of Pictures | 0x04 | |
| Unknown | 0x06 | seems to be static? |
| Total number of photos | 0x02 | excluding 2D dups |
| Unknown | 0x06 | File size? |
| Pictures Property | 0x152 * Number of Pictures | Index refereed by 3DS Camera |
Pictures Property
| Offset | Size | Description |
|---|---|---|
| Extension | 0x04 |