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Atari coding BBS
| LZ78 packer |
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Posted by: ray
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Feb,22.2006-18:24
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hi there,
at the moment i am busy with finishing my own image codec called BIQ. as a byproduct i ported Mark R. Nelson's '89 excellent LZ78 compression program and wrote a size optimized 68k version of the decoder.
now, its decoding speed isn't anywhere near as fast as the one of LZ77 due to the variable bitlength codes (64kb in roughly 2~3 seconds on a plain 8mhz 68000). i'm sure that could be optimized by the bitfield extraction routine though - as mentioned this is optimized for size not speed. regarding compression ratio, LZ78 is alot more efficient.
my question to you:
would there be any interest at all in me releasing the package seperately or did you rather get used to using traditional packers like ice UPX etc.?
regards,
ray
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[All messages in this thread] [Start new thread]
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Topic
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Posted by
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Date
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LZ78 packer
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ray
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Feb,22.2006-18:24
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Re: LZ78 packer
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ggn/KUA
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Feb,22.2006-22:37
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Re: LZ78 packer
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Leonard
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Feb,23.2006-02:44
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Re: LZ78 packer
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RA/paradox
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Feb,23.2006-00:19
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Re: LZ78 packer
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ray
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Feb,23.2006-13:20
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Re: LZ78 packer
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tobe
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Feb,23.2006-14:33
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Re: LZ78 packer
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Simon Sunnyboy / Paradize
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Feb,23.2006-17:19
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Re: LZ78 packer
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ray
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Feb,23.2006-18:55
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Re: LZ78 packer
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Simon Sunnyboy / Paradize
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Feb,24.2006-10:10
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Re: LZ78 packer
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ggn/KUA
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Feb,24.2006-20:12
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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