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VDF File Format
VDF archives are similar in principle to TAR and QPAK (Quake 1/2) archives, in that they are linear collections of non-compressed files. Every file inside a VDF archive can have a name up to 64 bytes long (which is generally an uppercase 7bit ASCII encoded string), and a size up to 4GB (2^32 bytes).
| Size | Description |
|---|---|
| 256 bytes | Comment on the archive |
| 16 bytes | Signature of the archive |
| 4 bytes | Number of entries |
| 4 bytes | Number of files |
| 4 bytes | Timestamp |
| 4 bytes | Archive size |
| 4 bytes | Catalog root offset |
| 4 bytes | Archive version |
The signature is always "PSVDSC_V2.00\r\n\r\n" in case of G1 archives, or
"PSVDSC_V2.00\n\r\n\r" in case of G2 archives.
The timestamp is given in DOS date format
It's always 0x00000050
| Size | Description |
|---|---|
| 64 bytes | Name of the entry |
| 4 bytes | Jump address |
| 4 bytes | Entry size |
| 4 bytes | Entry type |
| 4 bytes | Entry attributes |
If the entry is a directory, it stores an index of the first entry inside it, otherwise it stores the offset at which the first byte of the file is found
Size in bytes of the entry
It's a bitmask:
if 0x80000000 is present, then the entry is a directory and all the following entries should be considered inside of it, until an entry of with bit 0x40000000 set is found, which signals the last entry in a directory.
If the field is zero, the entry is a file.
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