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SC2replay header
ascendedguard edited this page Feb 10, 2011
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The MPQ file format specification specifies that there is sometime an optional 'shunt' block which is used to store user data for a particular MPQ file. In the case of sc2 replays, this user data block contains many information concerning the version of the replay we are parsing. (Source)
This document requires heavy research. An original source was found here, however the format has since changed. The table below should be correct for the more recent replay format, however the Version and Build numbers have not been determined yet.
| Location | Meaning | Expected Value | Data Type |
| 0x00 - 0x03 | MPQ Header | "MPQ" + 0x1B | |
| 0x04 - 0x07 | Maximum Size of User Data | 512 | Int32 |
| 0x08 - 0x0B | Offset of the MPQ header | 1024 | Int32 |
| 0x0C - 0x0F | Size of User Data Header | 60 | Int32 |
| 0x10 | DataType of next object | 0x05 (Array w/ Keys) | Byte |
| 0x11 | numElements | VLF Number | |
| 0x12? | Index of the current element | 0 | VLF Number |
| 0x13? | Datatype of the current element | 0x02 (Binary Data) | Byte |
| 0x15? - 0x27 | "Starcraft II replay" | Byte[] | |
| Index of the current element | 1 | VLF Number | |
| Datatype of the current element | 0x05 | Byte | |
| Number of elements in the following array (Containing Version #) | 0x05 | Byte | |
| Array containing the version: [0].[1].[2].[3], Build: [4]. [4] matches [5] | Version matching the replay version. Build matches the build in the SC2 folders. | Array w/ Keys |