Star Wars Battlefront 2004 PS2 LVL audio files

[Warthog1336]

Hi, need some help extracting the sounds from the LVL files. There's a file table at the beginning.

GCW.LVL

Thanks in advance.

[aluigi]

The format is not so easy because there are various chunks ("emo_", "_pad") and the audio data is splitted in an unclear way.
For example 0x9580 at offset 0x7c is the size of the first raw PS adpcm data block.

No idea at the moment and it's time consuming.
I leave what I have done so far for testing:

Code: Select all

idstring "ucfb" # just like "RIFF"
get LVL_SIZE long
math LVL_SIZE + 8
do
    get CHUNK_TYPE long
    get SIZE long
    savepos LIMIT
    math LIMIT + SIZE
    set NAME string ""
    if CHUNK_TYPE == 0x5f6f6d65   # "emo_"
        get DUMMY long
        get OFFSET long
        savepos BASE_OFF
        math OFFSET + BASE_OFF
        # I don't know what's the TYPE for the channels
        math CHANNELS = 1
        for x = 0 < 8
            get TYPE long
            get VAR long
            if TYPE == 0x40fbdebd
                math FILES = VAR
            endif
        next x
        for i = 0 < FILES
            getdstring DUMMY 0x10
            for x = 0 < 4
                get TYPE long
                get VAR long
                if TYPE == 0x2fb31c01
                    math FREQUENCY = VAR
                elif TYPE == 0x23a0d95c
                    math SIZE = VAR
                elif TYPE == 0x1d48feef
                    math DUMMY = VAR    # 0x15000
                elif TYPE == 0x809608b6
                    math DUMMY = VAR
                endif
            next x
            log NAME OFFSET SIZE
            math OFFSET + SIZE
        next i
        goto LIMIT
    elif CHUNK_TYPE == 0x5bb97f21
        # don't advance, it's probably part of "_pad" and "ucfb"
    else    # _pad and others
        log NAME OFFSET SIZE
        goto LIMIT
    endif
    savepos TMP
while TMP != LVL_SIZE

# you must provide the following values: OFFSET SIZE FREQUENCY and CHANNELS
startfunction DUMP_VAG
    log MEMORY_FILE 0 0
    put 0x64685353 long MEMORY_FILE
    put 0x18 long MEMORY_FILE
    put 0x10 long MEMORY_FILE
    put FREQUENCY long MEMORY_FILE
    put CHANNELS long MEMORY_FILE
    xmath TMP "SIZE / CHANNELS"
    put TMP long MEMORY_FILE
    put 0 long MEMORY_FILE
    put 0xffffffff long MEMORY_FILE
    put 0x64625353 long MEMORY_FILE
    put SIZE long MEMORY_FILE
    append
    log MEMORY_FILE OFFSET SIZE
    append

    get SIZE asize MEMORY_FILE
    log NAME 0 SIZE MEMORY_FILE
endfunction