Which format to use for the deflated stream. In case ZlibFormat.gz, the gzHeader field will be used if supplied, other wise default values will be used.
The GzHeader to be used with ZlibFormat.gz.
Compression level from 1 (fastest) to 9 (best compression).
Advanced parameters See zlib's documentation of deflateInit2. windowBits must be between 9 and 15 included and is adjusted according chosen format.
Advanced parameters See zlib's documentation of deflateInit2. windowBits must be between 9 and 15 included and is adjusted according chosen format.
Zlib's deflate algorithm