we can now load bnk files

.gitignore

@@ -1,4 +1,5 @@
 output/
+input/
 temp/
 *.pck
 *.hdiff

bnk.py

@@ -0,0 +1,47 @@
+# bnk reader because they exist in the game
+import io
+from filereader import FileReader
+
+def bnk2wem(data):
+	# gets raws data from object
+	reader = FileReader(io.BytesIO(data), "little")
+
+	bkhd_signature = reader.ReadBytes(4)
+
+	if bkhd_signature != b"\x42\x4B\x48\x44":
+		raise Exception("not a valid bnk")
+
+	bkhd_size = reader.ReadUInt32()
+	reader.ReadBytes(bkhd_size)
+
+	if reader.GetBufferPos() == reader.GetStreamLength():
+		return [] # empty bnk
+
+	didx_signature = reader.ReadBytes(4)
+
+	if didx_signature != b"\x44\x49\x44\x58":
+		return [] # invalid index signature (hirc block instead ?)
+
+	didx_size = reader.ReadUInt32()
+	n_wems = didx_size // 12
+	wems = []
+
+	for i in range(n_wems):
+		wem_id = reader.ReadUInt32()
+		wem_offset = reader.ReadUInt32()
+		wem_size = reader.ReadUInt32()
+		wem = [wem_id, wem_offset, wem_size]
+		wems.append([wem_id, wem_offset, wem_size])
+
+	data_signature = reader.ReadBytes(4)
+
+	if data_signature != b"\x44\x41\x54\x41":
+		return [] # invalid data signature (missing sector ?)
+
+	data_size = reader.ReadUInt32()
+	data_offset = reader.GetBufferPos()
+
+	for wem in wems:
+		wem[1] += data_offset
+
+	return wems

wavescan.py

@@ -1,6 +1,7 @@
 # Custom rewrite of the Wwise AKPK packages extractor, original by Nicknine and bnnm
 import os
 import traceback
+from bnk import bnk2wem
 
 
 reader = None
@@ -212,4 +213,17 @@ def extract_sector(section_size, is_sounds, is_externals, ext, endianness, lang_
 			continue
 
 		# file infos
-		wwise_data.append([os.path.basename(name), offset, size, filename])
+		if ext == "bnk":
+			# get data from bnk
+			print(offset)
+			pos = reader.GetBufferPos()
+			reader.SetBufferPos(offset)
+			bnk_data = reader.ReadBytes(size)
+			reader.SetBufferPos(pos)
+
+			wems = bnk2wem(bnk_data)
+
+			for wem in wems:
+				wwise_data.append([f"{os.path.basename(name).split('.')[0]}_{wem[0]}.wem", offset+wem[1], wem[2], filename])
+		else:
+			wwise_data.append([os.path.basename(name), offset, size, filename])