BRS (File Format): Difference between revisions
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=== | === Offsets === | ||
Each pointer holds the offset of a Sequence relative to the beginning of the file and is formatted like this: | Each pointer holds the offset of a Sequence relative to the beginning of the file and is formatted like this: | ||
{| class="wikitable" | {| class="wikitable" | ||
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== Track == | == Track == | ||
Each Track starts by defining | Each Track starts by defining its instrument (0x4), followed by the individual Key-presses for a Note (0x10 each). There is no padding between Tracks. | ||
=== Instrument === | === Instrument === | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 68: | Line 68: | ||
| 0x00 | | 0x00 | ||
| ??? (0x2) | | ??? (0x2) | ||
| | | Likely unused | ||
|- | |- | ||
| 0x02 | | 0x02 | ||
| Line 92: | Line 92: | ||
| 0x04 | | 0x04 | ||
| UInt32 (0x4) | | UInt32 (0x4) | ||
| Velocity | | Velocity | ||
|- | |- | ||
| 0x08 | | 0x08 | ||
| UInt32 (0x4) | | UInt32 (0x4) | ||
| Duration | | Duration | ||
|- | |- | ||
| 0x0C | | 0x0C | ||
| UInt32 (0x4) | | UInt32 (0x4) | ||
| | | Delay | ||
|} | |} | ||
Revision as of 21:47, 11 December 2024
BRS (Binary Remix Sequence) files contain sequence data for the NoteFairy (Rainbow Notes) object. Super Mario Galaxy and Super Mario Galaxy 2 each contain only one BRS file, located in AudioRes/Info/JaiRemixSeq.arc/brs/defaultremixseq.brs.
Header
The BRS format contains no header magic like most files do. Instead, it consists of a Sequence Count and Pointers. The size of the header is 0x4 + (Sequence Count x 0x4):
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 (0x4) | Sequence Count |
Offsets
Each pointer holds the offset of a Sequence relative to the beginning of the file and is formatted like this:
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 (0x4) | Offset |
Sequence Header
Each sequence's header consists of a Track and Note Count:
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 (0x4) | Track Count |
| 0x04 | UInt32 (0x4) | Note Count |
Note Duration (?)
The header is followed by a section that (presumably) defines the duration of each Note. This section's size is Note Count x 0x4.
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 (0x4) | Note Duration (?) |
Track
Each Track starts by defining its instrument (0x4), followed by the individual Key-presses for a Note (0x10 each). There is no padding between Tracks.
Instrument
| Offset | Type | Description |
|---|---|---|
| 0x00 | ??? (0x2) | Likely unused |
| 0x02 | UInt8 (0x1) | Set Bank |
| 0x03 | UInt8 (0x1) | Set Prog |
Key
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 (0x4) | Key (0x00 = C-1, 0x60 = C4 (middle C), 0x7F = G9, FFFFFFFF = None) |
| 0x04 | UInt32 (0x4) | Velocity |
| 0x08 | UInt32 (0x4) | Duration |
| 0x0C | UInt32 (0x4) | Delay |
Sequences in SMG & SMG2
A sequence can be defined in Obj_arg4 for the NoteFairy object. The following sequences are available in both games:
| Obj_arg4 | Name | Note Count | Notes |
|---|---|---|---|
| 0 | Super Mario Bros. main theme (long) | 13 | Unused |
| 1 | Super Mario Bros. main theme (short) | 7 | Unused |
| 2 | Super Mario Bros. underground theme | 43 | |
| 3 | Super Mario Bros. main theme (short) | 7 | Unused |
| 4 | Super Mario Bros. underwater theme | 46 | |
| 5 | Super Mario World bonus room theme | 64 |