[FFmpeg-devel] [PATCH 2/2] Fix side channels when XCh extension is present

Benjamin Larsson banan
Mon Jul 12 12:24:24 CEST 2010


Christophe Gisquet skrev 2010-07-12 11:27:
> Hi,
>
> 2010/7/11 Kostya<kostya.shishkov at gmail.com>:
>    
>>>>                  lt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f;
>>>>                  rt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f;
>>>>          
> As this magic value is in fact a coarse rounding (maybe it is mandated
> by the spec?) of 1/sqrt(2), the minimalist patch attached could be
> considered.
>
> Christophe
>    

Patch ok.

MvH
Benjamin Larsson




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