| Offset
|
Size
|
Description
|
| 0x0
|
0x8
|
Always "1UJQ00_1"
|
| 0x8
|
0x4
|
Number of Pictures + 1
|
| 0xC
|
0x2
|
Total number of photo entries(including unused entries) stored here, this is normally value 3000 (500 on NAND).
|
| 0xE
|
0x2
|
This u16 must be < 2, this is normally value 1 (0 for NAND).
|
| 0x10
|
0x2
|
Unknown, normally value zero.
|
| 0x12
|
0x2
|
Total number of photos(used entries), excluding 2D dups.
|
| 0x14
|
0x2
|
CRC16 over the entire file with this CRC field set to zero when calculating the CRC, with initialval=0 and polynomial=0xA001.
|
| 0x16
|
0x2
|
Size of this header, must be >=0x18(this is always value 0x18).
|
| 0x18
|
0x98 * Number of Pictures
|
Pictures Property, index refereed by 3DS Camera
|
The phtcache.bin actual filesize must be at least the following size: hdrsizefield + totalstoredentries*0x98.
Pictures Property[edit]
| Offset
|
Size
|
Description
|
| 0x0
|
0x04
|
Null-terminated file extension: MPO, JPG, or AVI.
|
| 0x4
|
0x8
|
Image file name, without the extension.
|
| 0xC
|
0x8
|
Directory name under the DCIM directory.
|
| 0x14
|
0x4
|
Time taken based on "DS epoch" (start of 1/1/2000) (UNIX+946684800)
|
| 0x1C
|
0x4
|
Time last viewed?
|
| 0x24
|
0x4
|
?
|
| 0x28
|
0x4
|
?
|
| 0x2C
|
0x4
|
?
|
| 0x30
|
0x4
|
?
|
| 0x34
|
0x4
|
?
|
| 0x38
|
0x4
|
?
|
| 0x3C
|
0x4
|
?
|
| 0x40
|
0x4
|
File size
|
| 0x50
|
0x18*4
|
4 blocks, where each block is 0x18-bytes.
|