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Re: [Lzip-bug] response to decoder error by lzip-1.2-pre3


From: John Reiser
Subject: Re: [Lzip-bug] response to decoder error by lzip-1.2-pre3
Date: Tue, 09 Dec 2008 10:04:08 -0800
User-agent: Thunderbird 2.0.0.18 (X11/20081119)

Hi Antonio,

> For error recovery of concatenated compressed files I plan to write a
> "lzrecover" utility, more or less like the bzip2recover of bzip2. ...

> I also plan to write a library able of doing the equivalent of
> Z_FULL_FLUSH. ...

Please consider forward error detection and correction (especially: avoiding
catastrophic loss of synchronization by the decoder) in any new output format.

I am willing to pay  2 bytes in 1,000 (0.2%) for forward error detection.
I am willing to pay  8 bytes in 1,000 (0.8%) for forward error correction.
Sometimes I can pay 20 bytes in 1,000 (2.0%) for forward error correction
with good recovery (minimal bytes lost, etc.)
Perhaps I can be persuaded to pay more.  (However, I'm not willing to pay the
100%, 200%, even 300% that Viterbi coding often pays for reliable communication
across a very noisy deep-space channel.)

-- 
John Reiser




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