[FFmpeg-devel] [PATCH 04/15] lavfi/af_volume: replace pow(10, x) by exp10(x)
Ganesh Ajjanagadde
gajjanagadde at gmail.com
Wed Dec 23 19:47:24 CET 2015
exp10, recently introduced, is superior for the purpose.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
---
libavfilter/af_volume.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/af_volume.c b/libavfilter/af_volume.c
index 3ba356a..6c4528a 100644
--- a/libavfilter/af_volume.c
+++ b/libavfilter/af_volume.c
@@ -376,7 +376,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
av_log(inlink->dst, AV_LOG_VERBOSE,
"Using gain %f dB from replaygain side data.\n", g);
- vol->volume = pow(10, (g + vol->replaygain_preamp) / 20);
+ vol->volume = exp10((g + vol->replaygain_preamp) / 20);
if (vol->replaygain_noclip)
vol->volume = FFMIN(vol->volume, 1.0 / p);
vol->volume_i = (int)(vol->volume * 256 + 0.5);
--
2.6.4
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