[FFmpeg-devel] [PATCH 03/15] lavfi/f_ebur128: replace pow(10, x) by exp10(x)

[Clément Bœsch]

On Wed, Dec 23, 2015 at 10:47:23AM -0800, Ganesh Ajjanagadde wrote:
> exp10, recently introduced, is superior for the purpose.
> 
> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
> ---
>  libavfilter/f_ebur128.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavfilter/f_ebur128.c b/libavfilter/f_ebur128.c
> index b9577c5..6749bcd 100644
> --- a/libavfilter/f_ebur128.c
> +++ b/libavfilter/f_ebur128.c
> @@ -435,7 +435,7 @@ static int config_audio_output(AVFilterLink *outlink)
>      return 0;
>  }
>  
> -#define ENERGY(loudness) (pow(10, ((loudness) + 0.691) / 10.))
> +#define ENERGY(loudness) (exp10(((loudness) + 0.691) / 10.))
>  #define LOUDNESS(energy) (-0.691 + 10 * log10(energy))
>  #define DBFS(energy) (20 * log10(energy))

OK if FATE is happy

-- 
Clément B.
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