FF10/FileFormat VBF
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Final Fantasy X stores all of its' game data in a single large archive, called a VBF (Virtuos Big File) archive. Virtuos is the developer contracted by Square Enix to handle the FFX/X-2 HD Remaster.
VBF header format
| Offset | Length | Name | Description |
|---|---|---|---|
| 0x0000 | 4 bytes | N/A | VBF header bytes, always equal to 0x5352594b ("SRYK") |
| 0x0004 | 4 bytes | headerLength | Length of the header block |
| 0x0008 | 8 bytes | numFiles | Number of files contained in archive |
| 0x0010 | numFiles * 16 bytes | nameHashes | MD5 hashes of each file name within archive |
| The next 5 values are repeated for each file in the archive | |||
| 0x0010 + (numFiles * 16) + (32 * fileIndex) | 4 bytes | blockListStarts | Start offset of file in the block list |
| 0x0014 + (numFiles * 16) + (32 * fileIndex) | 4 bytes | unknown | Unknown value, can be left as 0 when reconstructing |
| 0x0018 + (numFiles * 16) + (32 * fileIndex) | 8 bytes | originalSizes | Original size of file |
| 0x0020 + (numFiles * 16) + (32 * fileIndex) | 8 bytes | startOffsets | Start offset of file data |
| 0x0028 + (numFiles * 16) + (32 * fileIndex) | 8 bytes | fileNameOffsets | Offset of file name in string table |
| ... | |||
| 0x0010 + (numFiles * 48) | 4 bytes | stringTableLength | Length of the string table |
| 0x0014 + (numFiles * 48) | stringTableLength | stringTable | String table data |
