.drm file format

File Format

Data Type	Name	Usage
uint32	Version	File version (14 for Anniversary)
uint32	Number of sections
Header x number of sections	Section headers
SectionData x number of sections	Sections	Type depends on Header.type

Data Types

Header

Data Type	Name	Usage
uint32	Length	Length of section in bytes
SectionType	type	Type of section
uint32	preamble	Number of header bits
uint32	id	Id (not confirmed)
uint32	separator	FFFFFFFF

SectionType

Underlying type: uint32

Value	Usage
0	Data
5	Texture
6	Audio

SectionData

Data Type	Name	Usage
byte[header.preamble / 32]	header	Optional header data
byte[header.length]	data	Section data

TextureData

Data Type	Name	Usage
byte[header.preamble / 32]	header	Optional header data
uint32	PCD9	PCD9 Literal
char[4]	Format	Texture format: DXT1/DXT5 usually
uint32	Pixel Data Length	Number of bytes of pixel data
uint32	Unknown
uint32	Unknown
uint16	Width	Width of the texture in pixels
uint16	Height	Height of the texture in pixels
uint32	Unknown
byte[Pixel Data Length]	Pixel Data