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lavc/cngdec: replace pow(10,x) by ff_exp10(x)

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Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-12-23 10:20:15 -08:00
parent cb3a994bb1
commit b0e28da37c
1 changed files with 2 additions and 1 deletions
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3
libavcodec/cngdec.c
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@ -22,6 +22,7 @@
#include <math.h>
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "avcodec.h"
#include "celp_filters.h"
#include "internal.h"
@ -112,7 +113,7 @@ static int cng_decode_frame(AVCodecContext *avctx, void *data,
if (avpkt->size) {
int dbov = -avpkt->data[0];
p->target_energy = 1081109975 * pow(10, dbov / 10.0) * 0.75;
p->target_energy = 1081109975 * ff_exp10(dbov / 10.0) * 0.75;
memset(p->target_refl_coef, 0, p->order * sizeof(*p->target_refl_coef));
for (i = 0; i < FFMIN(avpkt->size - 1, p->order); i++) {
p->target_refl_coef[i] = (avpkt->data[1 + i] - 127) / 128.0;