import discipline_zerozip
# Decompress the data decompressed_data = discipline_zerozip.decompress(compressed_data)
import struct
if block_type == 0: # Zero-filled block block_size = struct.unpack_from('H', compressed_data)[0] compressed_data = compressed_data[2:] decompressed_data.extend(bytes([0]) * block_size) else: # Non-zero-filled block block = self._decompress_non_zero_block(compressed_data) decompressed_data.extend(block) compressed_data = compressed_data[len(block):]
def _compress_zero_block(self, block): # Compress the zero-filled block using a simple header header = struct.pack('B', 0) # Block type (zero-filled) header += struct.pack('H', len(block)) # Block size return header discipline zerozip
# Iterate through the compressed data while len(compressed_data) > 0: # Read the block type (zero-filled or non-zero-filled) block_type = struct.unpack_from('B', compressed_data)[0] compressed_data = compressed_data[1:]
def _is_zero_filled(self, block): return all(byte == 0 for byte in block) discipline zerozip
assert data == decompressed_data The Discipline Zerozip algorithm can be implemented in a variety of programming languages. Here is a sample implementation in Python:
return bytes(compressed_data)
def decompress(self, compressed_data): decompressed_data = bytearray()
# Detect zero-filled blocks if self._is_zero_filled(block): compressed_data.extend(self._compress_zero_block(block)) else: compressed_data.extend(self._compress_non_zero_block(block)) discipline zerozip
import discipline_zerozip
# Decompress the data decompressed_data = discipline_zerozip.decompress(compressed_data)
import struct
if block_type == 0: # Zero-filled block block_size = struct.unpack_from('H', compressed_data)[0] compressed_data = compressed_data[2:] decompressed_data.extend(bytes([0]) * block_size) else: # Non-zero-filled block block = self._decompress_non_zero_block(compressed_data) decompressed_data.extend(block) compressed_data = compressed_data[len(block):]
def _compress_zero_block(self, block): # Compress the zero-filled block using a simple header header = struct.pack('B', 0) # Block type (zero-filled) header += struct.pack('H', len(block)) # Block size return header
# Iterate through the compressed data while len(compressed_data) > 0: # Read the block type (zero-filled or non-zero-filled) block_type = struct.unpack_from('B', compressed_data)[0] compressed_data = compressed_data[1:]
def _is_zero_filled(self, block): return all(byte == 0 for byte in block)
assert data == decompressed_data The Discipline Zerozip algorithm can be implemented in a variety of programming languages. Here is a sample implementation in Python:
return bytes(compressed_data)
def decompress(self, compressed_data): decompressed_data = bytearray()
# Detect zero-filled blocks if self._is_zero_filled(block): compressed_data.extend(self._compress_zero_block(block)) else: compressed_data.extend(self._compress_non_zero_block(block))
