On Sun, Jan 30, 2022 at 07:27:10AM +0100, Andreas Rheinhardt wrote: > Writing optimal huffman tables is incompatible with using slices
Fundamentally, this should not be i think CCITT Rec. T.81 says "If a table specification for a given destination occurs more than once in the compressed image data, each specification shall replace the previous specification. The quantization table specification shall not be altered between progressive DCT scans of a given component." This explicitly mentions quatization tables but not huffman tables so it seems allowed that they can be changed [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB If you drop bombs on a foreign country and kill a hundred thousand innocent people, expect your government to call the consequence "unprovoked inhuman terrorist attacks" and use it to justify dropping more bombs and killing more people. The technology changed, the idea is old.
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