[Tremor] runtime-generated lookup tables

[Monty]

On Wed, Mar 08, 2006 at 07:58:40PM +0100, Oliver Lange wrote:
> 
> Howdy,
> 
> I guess this is a stupid question, but is there any way
> to runtime-generate the following tables?
> 
> floor1.c:
> 
>   FLOOR_fromdB_LOOKUP[256]
> 
> window_lookup.h:
> 
>   all LOOKUP_T vwin[] tables
> 
> I guess at least the latter is difficult ?

Not difficult, but you will need some way to compute sin/cos and exp
to fairly high precision.

The desktop reference codec does generate these tables; the code is in
libvorbis.

Monty