def parse_list(self, fileptr, identifier):
size_field = fileptr.read(4)
list_identifier = fileptr.read(4)
size = get_chunk_size(size_field)
offset = fileptr.tell()
if list_identifier == 'cmpr':
fileptr.seek(offset)
chunk = fileptr.read(size - 4)
return self.parse_cmpr_list(identifier + size_field + \
list_identifier + chunk)
obj = model.RiffList(identifier + size_field + list_identifier)
while fileptr.tell() <= offset + size - 8:
ret = self.parse_stream(fileptr)
if ret is None:
fileptr.seek(offset)
chunk = fileptr.read(size - 4)
return model.RiffUnparsedList(identifier + size_field + \
list_identifier + chunk)
else:
obj.childs.append(ret)
return obj
def parse_compressed_list(self, stream, identifier, blocksizes):
rawsize = dword2py_int(stream.read(4))
list_identifier = stream.read(4)
print list_identifier
size = blocksizes[rawsize]
size_field = py_int2dword(size)
if size & 1: size += 1
offset = stream.tell()
obj = model.RiffList(identifier + size_field + list_identifier)
while stream.tell() <= offset + size - 8:
ret = self.parse_comressed_stream(stream, blocksizes)
if ret is None:
stream.seek(offset)
chunk = stream.read(size - 4)
return model.RiffUnparsedList(identifier + size_field + \
list_identifier + chunk)
else:
obj.childs.append(ret)
return obj