Module constants 

Constants

GZIP_MAGIC

ZLIB_FRAME_OVERHEAD

Zlib frame overhead: 2-byte header + 4-byte Adler-32 checksum trailer. See: https://www.zlib.net/zlib_tech.html

ZLIB_MAGIC

ZLIB_STORED_BLOCK_OVERHEAD

Per-block overhead for zlib stored blocks: 1-byte header + 2-byte length + 2-byte ~length. See: https://www.zlib.net/zlib_tech.html

ZLIB_STORED_BLOCK_SIZE

Maximum size of a zlib stored (uncompressed) block in bytes. See: https://www.zlib.net/zlib_tech.html

ZSTD_MAGIC

ZSTD_SMALL_INPUT_THRESHOLD

Threshold below which zstd’s ZSTD_compressBound adds extra margin (128 KiB). See: https://github.com/facebook/zstd/blob/dev/lib/zstd.h (ZSTD_compressBound)