[FFmpeg-devel] [PATCH] E-AC-3 spectral extension

Aurelien Jacobs aurel
Sun Nov 16 19:11:28 CET 2008


On Sun, 16 Nov 2008 17:53:44 +0100
Michael Niedermayer <michaelni at gmx.at> wrote:

> On Sat, Nov 15, 2008 at 07:10:53PM -0500, Justin Ruggles wrote:
> > 
> > +#define M_SQRT_POW2_15 181
> 
> what does the 15 mean?

I guess it means sqrt(pow(2,15)), IOW sqrt(32768).

Aurel




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