Function at 0x499db0
Capabilities:
Create thread
Resume thread

Disassembly:
mov eax, dword [esp + 8]
sub esp, 8
cmp eax, 0x24
push ebx
push ebp
push esi
push edi
jl 0x499ecd
mov edi, str.RIFF
or ecx, 0xffffffff
xor eax, eax
mov esi, dword [esp + 0x1c]
repne scasb al, byte es:[edi]
not ecx
dec ecx
push ecx
push str.RIFF
push esi
call fcn.004b0250
add esp, 0xc
test eax, eax
jne 0x499ecd
mov eax, dword [esi + 4]
mov edi, 0x4f4d80
mov dword [esp + 0x14], eax
or ecx, 0xffffffff
xor eax, eax
add esi, 8
repne scasb al, byte es:[edi]
not ecx
dec ecx
push ecx
push 0x4f4d80
push esi
call fcn.004b0250
add esp, 0xc
test eax, eax
jne 0x499ecd
mov ecx, dword [esp + 0x1c]
xor ebx, ebx
xor esi, esi
xor ebp, ebp
lea edi, [ecx + 0xc]
mov dword [esp + 0x10], edi
mov edx, dword [edi + 4]
push 4
push str.fmt
push edi
mov dword [esp + 0x28], edx
call fcn.004b0250
add esp, 0xc
test eax, eax
jne 0x499e53
test esi, esi
lea ebx, [edi + 8]
jne 0x499e8a
jmp 0x499e72
push 4
push 0x4f4d70
push edi
call fcn.004b0250
add esp, 0xc
test eax, eax
jne 0x499e72
mov ebp, dword [esp + 0x1c]
lea esi, [edi + 8]
test ebx, ebx
jne 0x499e8e
mov eax, dword [esp + 0x1c]
mov edx, dword [esp + 0x10]
lea edi, [edi + eax + 8]
mov eax, dword [esp + 0x14]
mov ecx, edi
sub ecx, edx
cmp ecx, eax
jb 0x499e2f
test ebx, ebx
je 0x499ecd
test esi, esi
je 0x499ecd
test ebp, ebp
jbe 0x499ecd
push 0x4c
call fcn.004c0a01
mov dword [esp + 0x24], eax
mov dword [eax + 8], ebp
mov edx, dword [esp + 0x24]
mov eax, dword [edx + 8]
push eax
call fcn.004b1607
mov ecx, dword [esp + 0x28]
add esp, 8
mov dword [ecx], eax
mov eax, dword [esp + 0x20]
mov edi, dword [eax]
test edi, edi
jne 0x499ed7
push eax
call fcn.004c0a2a
add esp, 4
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 8
ret
mov ecx, ebp
push 0x14
mov edx, ecx
push 0x3c00
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov eax, dword [esp + 0x28]
mov ecx, dword [esp + 0x2c]
mov dword [eax + 0x48], ecx
mov edx, dword [esp + 0x28]
mov dword [edx + 0x1c], 0
call fcn.00499ba0
mov ecx, dword [esp + 0x28]
add esp, 8
push 0
push 0
push 1
push 0
mov dword [ecx + 0xc], eax
call dword [sym.imp.KERNEL32.dll_CreateEventA]
mov edx, dword [esp + 0x20]
push 0
push 0x14
push 0x14
push 0
mov dword [edx + 0x2c], eax
call dword [sym.imp.KERNEL32.dll_CreateSemaphoreA]
mov ecx, dword [esp + 0x20]
mov dword [ecx + 0x28], eax
mov edx, dword [esp + 0x20]
mov dword [edx + 0x14], 0
mov eax, dword [esp + 0x20]
mov dword [eax + 0x10], 0x14
mov ecx, dword [esp + 0x20]
add ecx, 0x30
push ecx
call dword [sym.imp.KERNEL32.dll_InitializeCriticalSection]
mov eax, dword [esp + 0x20]
push 0x49a3e0
push eax
add eax, 4
push ebx
push eax
call fcn.00499c10
mov eax, dword [esp + 0x30]
add esp, 0x10
mov edi, 4
lea edx, [eax + 0x24]
push edx
push edi
push eax
push 0x49a190
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov ecx, dword [esp + 0x20]
push 0x5061a0
mov dword [ecx + 0x20], eax
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
mov eax, dword [0x5061c0]
mov edx, dword [0x5061c4]
sub edx, eax
mov esi, eax
sar edx, 2
cmp edx, 1
jae 0x49a0b3
mov edx, dword [0x5061bc]
test edx, edx
je 0x499fe2
mov ecx, eax
sub ecx, edx
sar ecx, 2
cmp ecx, 1
jbe 0x499fe2
mov ecx, eax
sub ecx, edx
sar ecx, 2
jmp 0x499fe7
mov ecx, 1
test edx, edx
jne 0x499fef
xor eax, eax
jmp 0x499ff4
sub eax, edx
sar eax, 2
add eax, ecx
test eax, eax
mov dword [esp + 0x1c], eax
jge 0x49a000
xor eax, eax
lea edx, [eax*4]
push edx
call fcn.004c0a01
mov edi, dword [0x5061bc]
add esp, 4
mov ebp, eax
cmp edi, esi
mov ebx, ebp
je 0x49a032
push edi
push ebx
call fcn.0049a6b0
add edi, 4
add esp, 8
add ebx, 4
cmp edi, esi
jne 0x49a01e
lea eax, [esp + 0x20]
push eax
push ebx
call fcn.0049a6b0
mov edi, dword [0x5061c0]
add esp, 8
add ebx, 4
cmp esi, edi
je 0x49a061
push esi
push ebx
call fcn.0049a6b0
add esi, 4
add esp, 8
add ebx, 4
cmp esi, edi
jne 0x49a04d
mov ecx, dword [0x5061c0]
mov edx, dword [0x5061bc]
push ecx
push edx
mov ecx, 0x5061b8
call fcn.00488c50
mov eax, dword [0x5061bc]
push eax
call fcn.004c0a2a
mov ecx, dword [esp + 0x20]
add esp, 4
lea edx, [ebp + ecx*4]
mov ecx, 0x5061b8
mov dword [0x5061c4], edx
call fcn.0049a420
lea eax, [ebp + eax*4 + 4]
mov dword [0x5061bc], ebp
mov dword [0x5061c0], eax
jmp 0x49a150
mov ecx, eax
sub ecx, esi
sar ecx, 2
cmp ecx, 1
jae 0x49a10d
lea edx, [esi + 4]
mov ecx, 0x5061b8
push edx
push eax
push esi
call fcn.0049a650
lea eax, [esp + 0x20]
mov edx, 1
push eax
mov eax, dword [0x5061c0]
mov ecx, eax
sub ecx, esi
sar ecx, 2
sub edx, ecx
mov ecx, 0x5061b8
push edx
push eax
call fcn.0049a680
mov ecx, dword [0x5061c0]
mov eax, esi
cmp esi, ecx
je 0x49a14a
mov edx, dword [esp + 0x20]
mov dword [eax], edx
add eax, edi
cmp eax, ecx
jne 0x49a0ff
jmp 0x49a14a
push eax
push eax
add eax, 0xfffffffc
mov ecx, 0x5061b8
push eax
call fcn.0049a650
mov eax, dword [0x5061c0]
mov ecx, eax
add eax, 0xfffffffc
cmp esi, eax
je 0x49a137
sub eax, edi
sub ecx, edi
cmp eax, esi
mov edx, dword [eax]
mov dword [ecx], edx
jne 0x49a12b
lea eax, [esi + 4]
cmp esi, eax
je 0x49a14a
mov ecx, dword [esp + 0x20]
mov dword [esi], ecx
add esi, edi
cmp esi, eax
jne 0x49a13e
add dword [0x5061c0], edi
push 0x5061a0
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
mov edx, dword [esp + 0x20]
mov eax, dword [edx + 0x20]
push eax
call dword [sym.imp.KERNEL32.dll_ResumeThread]
mov ecx, dword [esp + 0x20]
push 0
push 0x14
mov edx, dword [ecx + 0x28]
push edx
call dword [sym.imp.KERNEL32.dll_ReleaseSemaphore]
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
add esp, 8
ret