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Re: [Cellar] On the multiplicity of Info elements

Michael Niedermayer <michael@niedermayer.cc> Fri, 15 January 2016 11:00 UTC

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Date: Fri, 15 Jan 2016 11:59:41 +0100
From: Michael Niedermayer <michael@niedermayer.cc>
To: Moritz Bunkus <moritz@bunkus.org>
Message-ID: <20160115105941.GC13213@nb4>
References: <CAOXsMFKJJhzU-3CYqguDePY42T+Vvhx9ytAfvoM6xyqaZY+N4g@mail.gmail.com> <FCC4DC05-44CD-4C2B-8C59-8E3E5B494DC0@dericed.com> <568D6710.8000605@gmx.de> <692F039A-180D-4535-B4A1-529A777573F5@dericed.com> <5693D5D6.6030709@xiph.org> <F6B37DB3-EDCB-4BD2-9B0D-F8A4F353F36E@dericed.com> <20160112133656.GJ4063@bunkus.org> <5697E0D6.5000906@gmx.de> <FA83BFB8-286C-4BD5-A757-F653A06702A2@dericed.com> <20160115081026.GC4063@bunkus.org>
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Cc: cellar@ietf.org
Subject: Re: [Cellar] On the multiplicity of Info elements
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On Fri, Jan 15, 2016 at 09:10:27AM +0100, Moritz Bunkus wrote:
> Hey,
[...]
> > > My usecase for checksums was indeed just error recovery.
> 
> Just to be clear. "Error recovery" usually means both "error detection"
> and "error correction". CRCs are only meant and useful for the
> recovery. On their own they don't do anything for correction.

Its possible to correct single bit, burst and some multi bit errors
with CRCs

it depends on the CRC polynom used and on the data length

see: http://guru.multimedia.cx/index.php?s=crc+correcting

[...

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Republics decline into democracies and democracies degenerate into
despotisms. -- Aristotle

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