Ensure --nx --nz
disables all optimisations
#543
Merged
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This PR makes two changes:
--nz
(idat_recoding
) now disables all zlib recompression, including iCCP and fDAT chunks. (Perhaps we should rename the option tozlib_recompression
?)--nx
now also disables the default deinterlacing, though it can still be overridden with-i
.--nx --nz
does disable all optimisations in the v8 release and we should ensure it continues to do so in the next release. (This is related to discussions around removing the--check
option.)