Constants
Length of a compression format name
Prefer compression that compresses smaller (ONLY VALID FOR COMPRESSION)
Prefer compression that compresses faster (ONLY VALID FOR COMPRESSION)
Compress with user defined callbacks - DEPRECATED, USE FNAME
Joint of the previous ones to determine if old flags are being used
Compress with GZIP - DEPRECATED, USE FNAME
No compression
No flags specified /
Set of flags that are options are still allowed
Is the source buffer padded out (ONLY VALID FOR UNCOMPRESS)
Compress with ZLIB - DEPRECATED, USE FNAME
Size of cached data.
Number of allowed different methods
Magic number to use in header