generate live video wallpaper

controllers/aar/aar.py

@@ -0,0 +1,60 @@
+'''
+Created by Snoolie K (0xilis) on 2025 March 18.
+Licensed under MIT. Please credit if using.
+'''
+
+import struct
+
+# make a .aar of one contexts.plist file
+def wrap_in_aar(input_file, input_mov, output_file):
+    # Since I only need to care about a contents.plist (and in the future the mov file), I am hardcoding the header...
+    header = bytearray.fromhex("4141303125005459503146504154500E00636F6E74656E74732E706C697374444154418E13")
+    
+    with open(input_file, 'rb') as f:
+        file_data = f.read()
+    
+    file_size = len(file_data)
+    
+    if file_size <= 0xFFFF:
+        # Our size can fit in a 2 byte AA_FIELD_TYPE_BLOB, yay
+        header[-2:] = struct.pack('<H', file_size)
+    else:
+        '''
+        Our contents.plist is over 64KB. This means it won't fit in a uint16_t.
+        Instead, we update the A subtype for our DAT (2 byte AA_FIELD_TYPE_BLOB)
+        To be a B subtype (4 byte AA_FIELD_TYPE_BLOB). This also means we will
+        need to change the header size to 0x27 since we are adding 2 bytes by doing this.
+        '''
+        header[-3] = 0x42
+        header[-2:] = struct.pack('<I', file_size)
+        header[4] = 0x27
+    # Hardcoded settlingEffect.mov header
+    header2 = bytearray.fromhex("4141303129005459503146504154501200736574746C696E674566666563742E6D6F7644415441F4B8")
+    
+    with open(input_mov, 'rb') as f:
+        file_data2 = f.read()
+    
+    file_size2 = len(file_data2)
+    
+    if file_size2 <= 0xFFFF:
+        # Our size can fit in a 2 byte AA_FIELD_TYPE_BLOB, yay
+        header2[-2:] = struct.pack('<H', file_size2)
+    else:
+        '''
+        Our settlingEffect.mov is over 64KB. This means it won't fit in a uint16_t.
+        Instead, we update the A subtype for our DAT (2 byte AA_FIELD_TYPE_BLOB)
+        To be a B subtype (4 byte AA_FIELD_TYPE_BLOB). This also means we will
+        need to change the header size to 0x27 since we are adding 2 bytes by doing this.
+        '''
+        header2[-3] = 0x42
+        header2[-2:] = struct.pack('<I', file_size2)
+        header2[4] = 0x2B
+    
+    # Write the header and file data to the output file
+    with open(output_file, 'wb') as f:
+        f.write(header)
+        f.write(file_data)
+        f.write(header2)
+        f.write(file_data2)
+
+wrap_in_aar('contents.plist', 'settlingEffect.mov', 'output.aar')