[MPlayer-dev-eng] Lots of stuff for NUT
    Oded Shimon 
    ods15 at ods15.dyndns.org
       
    Sat Dec 31 21:54:37 CET 2005
    
    
  
On Sat, Dec 31, 2005 at 09:23:21PM +0100, Michael Niedermayer wrote:
> On Sat, Dec 31, 2005 at 09:00:03PM +0200, Oded Shimon wrote:
> > I vote for this to be official index.
> 
> i vote in favor of putting the type into repeat
good..
> but i vote against the zero
> back_ptr which points to the current syncpoint
Why?... See below
> i also vote in favor for pos/8 instead of pos/16384 if the gain is just ~5%
> of the index
Yeah, I don't think that was actually on the table at all.
And, you've got it backwards!
pos/16384 gives a 25% gain (75kb instead of 100kb)
where as ambgiuous "zero back ptr" gives BARELY a 5% gain, and raises 
complexity much! (Took me forever to check that my index "calculater" was 
correct, because the data in was not identical to the data out...)
I see no reason to not include the "zero back ptr". Like you just said: 5% 
gain is really not worth it. (again, out of a 100kb index, 90kb is the pos 
and pts)
BTW, regardless of gain, pos/16384 should not be used. you might as well 
divide it by 4GB, it makes saying the pos at all useless, because it now 
points at a general location, and not at an actual syncpoint.
- ods15
    
    
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