From c5f0b6bf410ca9921cf61627ed1cba38d09b0725 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 10 Sep 2012 22:32:56 +0200 Subject: [PATCH] atrac3: replace powf(2,...) by exp2f() Signed-off-by: Michael Niedermayer --- libavcodec/atrac3.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavcodec/atrac3.c b/libavcodec/atrac3.c index 0912043331..7d076bed99 100644 --- a/libavcodec/atrac3.c +++ b/libavcodec/atrac3.c @@ -37,6 +37,7 @@ #include #include "libavutil/float_dsp.h" +#include "libavutil/libm.h" #include "avcodec.h" #include "get_bits.h" #include "bytestream.h" @@ -1020,10 +1021,10 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx) /* Generate gain tables. */ for (i=0 ; i<16 ; i++) - gain_tab1[i] = powf (2.0, (4 - i)); + gain_tab1[i] = exp2f (4 - i); for (i=-15 ; i<16 ; i++) - gain_tab2[i+15] = powf (2.0, i * -0.125); + gain_tab2[i+15] = exp2f (i * -0.125); /* init the joint-stereo decoding data */ q->weighting_delay[0] = 0;