[FFmpeg-devel] [PATCH 03/10] avcodec/aacps_tablegen: use hypot()

[Rostislav Pehlivanov]

LGTM, feel free to apply.

On Sun, 2015-11-22 at 12:05 -0500, Ganesh Ajjanagadde wrote:
> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
> ---
>  libavcodec/aacps_tablegen.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/aacps_tablegen.h
> b/libavcodec/aacps_tablegen.h
> index ca1112d..0bd51cc 100644
> --- a/libavcodec/aacps_tablegen.h
> +++ b/libavcodec/aacps_tablegen.h
> @@ -136,7 +136,7 @@ static av_cold void ps_tableinit(void)
>                  float pd2_im = ipdopd_sin[pd2];
>                  float re_smooth = 0.25f * pd0_re + 0.5f * pd1_re +
> pd2_re;
>                  float im_smooth = 0.25f * pd0_im + 0.5f * pd1_im +
> pd2_im;
> -                float pd_mag = 1 / sqrt(im_smooth * im_smooth +
> re_smooth * re_smooth);
> +                float pd_mag = 1 / hypot(im_smooth, re_smooth);
>                  pd_re_smooth[pd0*64+pd1*8+pd2] = re_smooth * pd_mag;
>                  pd_im_smooth[pd0*64+pd1*8+pd2] = im_smooth * pd_mag;
>              }