flac dev - Sep 2004 - Rice coding parameter

Hi,

I asked a few questions about the flac format a couple of weeks ago. One more
(if you don't mind) about the Rice coding. The Rice parameter "k"
can't be zero (unless I'm mistaken), yet the FLAC spec says the Rice
parameter can range from 0 to 15.

I guessed, and tried adding one before using the parameter (i.e. assuming the
range was really 1 to 16), and that didn't fix it.

How should I interpret those four little bits?

Once again, any help will be much appreciated.

Thanks
Dan

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On Sat, Oct 18, 2003 at 07:21:08PM +0000, Dan Stowell
wrote:
> I asked a few questions about the flac format a couple of weeks ago.
> One more (if you don't mind) about the Rice coding. The Rice
> parameter "k" can't be zero (unless I'm mistaken), yet
the FLAC spec
> says the Rice parameter can range from 0 to 15.
> 
> I guessed, and tried adding one before using the parameter (i.e.
> assuming the range was really 1 to 16), and that didn't fix it.
> 
> How should I interpret those four little bits?
The spec is ok, Rice parameter can be 0 to 14, 15 is escape code. And
Rice parameter 0 means that only the unary part is used. For example
000001000010001001011 is -3 2 -2 1 -1 0.

-- 
Miroslav Lichvar