Date: Sun, 19 Oct 2003 00:59:22 +0200
> 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.
Thanks again Miroslav. So if I understand your example correctly, I can
interpret a single number in this unary code using
return ( (q&1)==1 ? -((q>>1)+1) : (q>>1) );
if 'q' is the number of zeroes found before bumping into a 1. Is this a
standard component of Rice coding, or is it developed for FLAC? I didn't
read about it when I read up on Rice coding.
Thanks
Dan
--
___________________________________________________
OperaMail free e-mail - http://www.operamail.com
OperaMail Premium - 28MB, POP3, more! US$29.99/year
Powered by Outblaze
-------------------------------------------------------
This SF.net email is sponsored by OSDN developer relations
Here's your chance to show off your extensive product knowledge
We want to know what you know. Tell us and you have a chance to win $100
http://www.zoomerang.com/survey.zgi?HRPT1X3RYQNC5V4MLNSV3E54
_______________________________________________
Flac-dev mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/flac-dev
