[FFmpeg-devel] [PATCH 04/15] lavfi/af_volume: replace pow(10, x) by exp10(x)

[Ganesh Ajjanagadde]

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