Harry Potter Posted September 20, 2022 Share Posted September 20, 2022 Hi! I am working on a compression technique. Actually, I am working on several compression techniques, on 8-bit, 16-bit and later 32-bit and 64-bit, open-source and closed-source. I am doing very well but not well enough. I am basing one of them on ZX0. I added Adaptive Huffman codes, my own method of handling lengths, some ways to not compress LZ77 fields if Huffman will do better and Huffman bytes if >=8 bits long and Last16. Last16 compresses LZ77 entries that are repeats of recent LZ77 entries to the # of the last entry. I want to do better. Does anybody here have any ideas on how to improve this? BTW, I recently found LZO on Wikipedia and will soon work on implementing it. Quote Link to comment Share on other sites More sharing options...
zbyti Posted September 20, 2022 Share Posted September 20, 2022 5 Quote Link to comment Share on other sites More sharing options...
Traxx Posted September 24, 2022 Share Posted September 24, 2022 Same Harry Potter from Lemon 64 forum? Quote Link to comment Share on other sites More sharing options...
ivop Posted September 24, 2022 Share Posted September 24, 2022 1 hour ago, Traxx said: Same Harry Potter from Lemon 64 forum? Yes, the same one. He wants to beat state of the art compression, but want others to do it for him. He recently found LZO apparently, which was published over 26 years ago. 1 1 Quote Link to comment Share on other sites More sharing options...
+Stephen Posted September 24, 2022 Share Posted September 24, 2022 2 hours ago, ivop said: Yes, the same one. He wants to beat state of the art compression, but want others to do it for him. He recently found LZO apparently, which was published over 26 years ago. But hasn't he already beaten it 5 or 6 times? Just because the compressed files wouldn't decompress doesn't mean anything. The compressed files were tiny! 3 Quote Link to comment Share on other sites More sharing options...
ilmenit Posted September 25, 2022 Share Posted September 25, 2022 15 hours ago, Stephen said: But hasn't he already beaten it 5 or 6 times? Just because the compressed files wouldn't decompress doesn't mean anything. The compressed files were tiny! Maybe he is an undiscovered talent in making hash functions 4 Quote Link to comment Share on other sites More sharing options...
scottinNH Posted September 28, 2022 Share Posted September 28, 2022 Ouch. We all have our obsessions. Tough crowd! 🙂 Quote Link to comment Share on other sites More sharing options...
FifthPlayer Posted September 28, 2022 Share Posted September 28, 2022 Just compress the compressed file a second time. Duh. 1 Quote Link to comment Share on other sites More sharing options...
+MrFish Posted September 28, 2022 Share Posted September 28, 2022 1 hour ago, FifthPlayer said: Just compress the compressed file a second time. Duh. No, no, no... you have to compress the algorithm! 1 Quote Link to comment Share on other sites More sharing options...
stepho Posted September 29, 2022 Share Posted September 29, 2022 What if he makes a total hash of the algorithm? Quote Link to comment Share on other sites More sharing options...
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