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BCWAV: Difference between revisions

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Steveice10 (talk | contribs)
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PabloMK7 (talk | contribs)
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B doesn't stand for Banner, but for Binary (same all of the other NW4C related file formats).
 
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[[Category:File formats]]
[[Category:File formats]]
This document is about the format of Banner's CTR Wave files (BCWAV).
This document is about the format of Binary CTR Wave files (BCWAV). The structure is very similar to Microsoft's Wave file.
 
The structure is very similar to Microsoft's Wave file.
 
Banner CWAV total channels must be 2, and the length of the audio in seconds must be 3 seconds or less.


=== Overview ===
=== Overview ===
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| 0x018 || 4 || Reserved
| 0x018 || 4 || Reserved
|-
|-
| 0x01C || 4 + Count * 8 || [[#Channel Info|Channel Info]] [[#Reference Table|Reference Table]]
| 0x01C || X || [[#Channel Info|Channel Info]] [[#Reference Table|Reference Table]]
|-
| X || X || [[#Channel Info|Channel Info]] Entries
|}
|}


The info block is aligned to 0x20 bytes.
If encoding is DSP ADPCM:
 
{| class="wikitable" border="1"
|-
! OFFSET !! SIZE !!  DESCRIPTION
|-
| X || X || [[#DSP ADPCM Info|DSP ADPCM Info]] Entries
|}


=== Data Block ===
If encoding is IMA ADPCM:


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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! OFFSET !! SIZE !!  DESCRIPTION
! OFFSET !! SIZE !!  DESCRIPTION
|-
|-
| 0x000 || 8 || [[#Block Header|Block Header]]
| X || X || [[#IMA ADPCM Info|IMA ADPCM Info]] Entries
|-
| 0x008 || [[#Block Header|Block Header]] Size - 8 || Data
|}
|}


The data block is aligned to 0x20 bytes, as well as the data field's actual sample data.
The info block is aligned to 0x20 bytes.


=== Encoding ===
==== Encoding ====


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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|}
|}


=== Channel Info ===
==== Channel Info ====


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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| 0x000 || 8 || Samples [[#Reference|Reference]] (Offset relative to [[#Data Block|Data Block]] Data field)
| 0x000 || 8 || Samples [[#Reference|Reference]] (Offset relative to [[#Data Block|Data Block]] Data field)
|-
|-
| 0x008 || 8 || ADPCM Info [[#Reference|Reference]]  (Offset relative to [[#Channel Info|Channel Info]] start)
| 0x008 || 8 || ADPCM Info [[#Reference|Reference]]  (Offset relative to Samples [[#Reference|Reference]] field)
|-
|-
| 0x010 || 4 || Reserved
| 0x010 || 4 || Reserved
|}
|}


=== DSP ADPCM Info ===
===== DSP ADPCM Info =====


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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|}
|}


=== DSP ADPCM Param ===
====== DSP ADPCM Param ======


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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|}
|}


=== DSP ADPCM Context ===
====== DSP ADPCM Context ======


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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|}
|}


=== IMA ADPCM Info ===
===== IMA ADPCM Info =====


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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|}
|}


=== IMA ADPCM Context ===
====== IMA ADPCM Context ======


{| class="wikitable" border="1"
{| class="wikitable" border="1"
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| 0x003 || 1 || Padding
| 0x003 || 1 || Padding
|}
|}
=== Data Block ===
{| class="wikitable" border="1"
|-
! OFFSET !! SIZE !!  DESCRIPTION
|-
| 0x000 || 8 || [[#Block Header|Block Header]]
|-
| 0x008 || [[#Block Header|Block Header]] Size Value - 8 || Data
|}
The data block is aligned to 0x20 bytes, as well as the data field's actual sample data.


=== Reference Table ===
=== Reference Table ===
Retrieved from "https://www.3dbrew.org/wiki/BCWAV"