[FFmpeg-devel] [PATCH 12/15] lavc/opus: replace pow(10, x) by exp10(x)

[Rostislav Pehlivanov]

On Wed, 2015-12-23 at 10:47 -0800, Ganesh Ajjanagadde wrote:
> exp10, introduced recently, is superior for the purpose.
> 
> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
> ---
>  libavcodec/opus.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/libavcodec/opus.c b/libavcodec/opus.c
> index 6b3d3c3..cac9f85 100644
> --- a/libavcodec/opus.c
> +++ b/libavcodec/opus.c
> @@ -27,6 +27,7 @@
>  #include <stdint.h>
>  
>  #include "libavutil/error.h"
> +#include "libavutil/libm.h"
>  
>  #include "opus.h"
>  #include "vorbis.h"
> @@ -333,7 +334,7 @@ av_cold int
> ff_opus_parse_extradata(AVCodecContext *avctx,
>  
>      s->gain_i = AV_RL16(extradata + 16);
>      if (s->gain_i)
> -        s->gain = pow(10, s->gain_i / (20.0 * 256));
> +        s->gain = exp10(s->gain_i / (20.0 * 256));
>  
>      map_type = extradata[18];
>      if (!map_type) {

Seems trivial, LGTM

Thanks