CSMP (File Format)

The .csmp file format seen in Retro Studios games past Metroid Prime 2, it's very similar in use to AGSC and contains sound affects. Where CSMP differs is the fact that it only contains one sound (usually, there may be a few outliers) and is broken up into obvious data chunks with easily identifiable sizes.

To do: Notate Tropical freeze differences (Paraxade do you know anything?)

Header

What follows is the header found in Metroid Prime 3 and Donkey Kong Country Returns, Tropical Freeze's seems to be a bit different. The file can be read using a simple while loop, each chunk designates it's size

To do: We've had success getting audio out of Tropical Freeze, crediar mentioned ddspadpcm being used in Tropical Freeze. What is it? And can we find any information on it?

Offset	Size	Description
0x0	4	Magic; Always 0x43534D50 ("CSMP")	0x4	4	Version; Always 1 } Chunk Offset Size Description 0x0 4 ChunkType 0x4 4 ChunkSize (N) 0x8+N End of chunk (usually, subtract 4 when the chunk type is equal to 0x44415441 ("DATA")) } Chunk Types The known values for each chunk are as follows --INFO-- Offset Size Description 0x0 1 Unknown 0x1 1 Loop Flag 0x2 4 Unknown 0x6 2 Unknown 0x8 4 Volume } --PAD-- Padding, just seek ChunkSize bytes ahead --DATA-- Refer to the DSP page for details.