NSA: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 48: | Line 48: | ||
== Tools == | == Tools == | ||
-n/a- | |||
Revision as of 23:21, 5 October 2016
This is a NScripter archive format.
Structure
| Header | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Content | Description | ||||||||||||
| 2Bytes | Number of files | |||||||||||||
| 4Bytes | Index Size | |||||||||||||
| Index | ||||||||||||||
| Size | Content | Description | ||||||||||||
| (Length)+1Byte | File name | Terminated with 0x00 | ||||||||||||
| 1Bytes | Compress Switch | 00=false 01=true 02=wtf | ||||||||||||
| 4Bytes | Offset | |||||||||||||
| 4Bytes | Compressed Size | |||||||||||||
| 4Bytes | Uncompressed Size | |||||||||||||
Note: All numbers are big endian.
Research
| First 5 Index Entries for 'arc.nsa' of みずいろ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Index Size | Filename | Offset | Filesize1 | Filesize2 | ||||||||||
| 22bytes | b\00.jpg | 0 | 155636 | 155636 | ||||||||||
| 23bytes | b\001.jpg | 155636 | 140467 | 140467 | ||||||||||
| 22bytes | b\01.jpg | 296103 | 169994 | 169994 | ||||||||||
| 22bytes | b\01.jpg | 466097 | 136249 | 136249 | ||||||||||
| 22bytes | b\05.jpg | 602346 | 150570 | 150570 | ||||||||||
Two file sizes suggest the archive supports compression. However in this case, it does not appear to be used due to same size for both filesize values. Compression method is unknown. Would be nice if it was zlib since I have experience implementing that.
Tools
-n/a-