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[[Category:File formats]]
The BCSAR (Binary CTR Sound ARchive) format is the 3DS's equivalent of the Wii's BRSAR  format. They're not the same structures, though, but they do have the same purpose.
== Overview ==
 
The BCSAR (CTR Sound ARchive) format is the 3DS's equivalent of the Wii's BRSAR  format. They're not the same structures, though, but they do have the same purpose.


BCSAR are located in the RomFS, this is usually stored under "romfs:/sound/<name>.bcsar". This contains various audio formats, such as CSTM, CWSD, and CWAV.
BCSAR are located in the RomFS, this is usually stored under "romfs:/sound/<name>.bcsar". This contains various audio formats, such as CSTM, CWSD, CSEQ, and CWAV.


== BCSAR Header ==
== BCSAR Header ==
Line 40: Line 37:
|  0x14
|  0x14
|  0x4
|  0x4
|  Partition header length [same for each partition? (ie STRG,INFO,and FILE header lengths)]
|  STRG partition reference ID? (Always 0x2000)
|-
|-
|  0x18
|  0x18
Line 52: Line 49:
|  0x20
|  0x20
|  0x4
|  0x4
|  Unknown (always 0x01200000?)
|  INFO partition reference ID? (Always 0x2001)
|-
|-
|  0x24
|  0x24
Line 61: Line 58:
|  0x4
|  0x4
|  Length of INFO partition
|  Length of INFO partition
|-
|  0x2C
|  0x4
|  Main FILE partition reference ID? (Always 0x2002)
|-
|-
|  0x30
|  0x30
Line 237: Line 238:
|  0x8
|  0x8
|  0x4
|  0x4
|  Unknown magic 0x2100
|  Audio Table Reference ID (0x2100)
|-
|-
|  0xC
|  0xC
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the Audio Table
|-
|-
|  0x10
|  0x10
|  0x4
|  0x4
|  Unknown magic 0x2104
|  Set Table Reference ID (0x2104)
|-
|-
|  0x14
|  0x14
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the Set Table
|-
|-
|  0x18
|  0x18
|  0x4
|  0x4
|  Unknown magic 0x2101
|  Bank Table Reference ID (0x2101)
|-
|-
|  0x1C
|  0x1C
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the Bank Table
|-
|-
|  0x20
|  0x20
|  0x4
|  0x4
|  Unknown magic 0x2103
|  WAV Archive Table Reference ID (0x2103)
|-
|-
|  0x24
|  0x24
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the WAV Archive Table
|-
|-
|  0x28
|  0x28
|  0x4
|  0x4
|  Unknown magic 0x2105
|  Group Table Reference ID (0x2105)
|-
|-
|  0x2C
|  0x2C
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the Group Table
|-
|-
|  0x30
|  0x30
|  0x4
|  0x4
|  Unknown magic 0x2102
|  Player Table Reference ID (0x2102)
|-
|-
|  0x34
|  0x34
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to Player Table
|-
|-
|  0x38
|  0x38
|  0x4
|  0x4
|  Unknown magic 0x2106
|  FILE Table Reference ID (0x2106)
|-
|-
|  0x3C
|  0x3C
|  0x4
|  0x4
|  This + 8 points to unknown
|  This + 8 points to the FILE Table
|-
|-
|  0x40
|  0x40
|  0x4
|  0x4
|  Unknown magic 0x220B
|  Unknown Table Reference ID (0x220B)
|-
|-
|  0x44
|  0x44
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|  0x0
|  0x0
|  0x4
|  0x4
|  Sound ID
|  First Sound ID in this sequence set
|-
|-
|  0x4
|  0x4
|  0x4
|  0x4
|  Another Sound ID
|  Last Sound ID in this sequence set
|-
|-
|  0x8
|  0x8
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|  0x4
|  0x4
|  Unknown
|  Unknown
|-
|}
===== Table IDs =====
{| class="wikitable" border="1"
|-
!  ID
!  NAME
|-
|  0x2200
|  Audio Table
|-
|  0x2204
|  Set Table
|-
|  0x2206
|  Bank Table
|-
|  0x2207
|  WAV Archive Table
|-
|  0x2208
|  Group Table
|-
|  0x2208
|  Player Table
|-
|  0x220A
|  FILE Table
|-
|-
|}
|}
Line 435: Line 466:
|  Length of FILE partition (also in CSAR header)
|  Length of FILE partition (also in CSAR header)
|-
|-
|  0x8
|  0x24
|  Padding
|}
|}


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== Tools ==
== Tools ==
* vgmtoolbox's Advanced Cutter/Offset Finder tool can extract BCWAVs without filenames
* vgmtoolbox's Advanced Cutter/Offset Finder tool can extract BCWAVs without filenames
* [https://github.com/soneek/3DSUSoundArchiveTool 3DSUSoundArchiveTool] reference implementation of CSAR extraction
* [https://github.com/thane98/BCSAR-View BCSAR View]
* [https://github.com/Gota7/Citric-Composer Citric Composer]
[[Category:File formats]]
Retrieved from "https://www.3dbrew.org/wiki/BCSAR"