[FFmpeg-devel] [PATCH 03/15] lavfi/f_ebur128: replace pow(10, x) by exp10(x)
Ganesh Ajjanagadde
gajjanagadde at gmail.com
Wed Dec 23 19:47:23 CET 2015
exp10, recently introduced, is superior for the purpose.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
---
libavfilter/f_ebur128.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/f_ebur128.c b/libavfilter/f_ebur128.c
index b9577c5..6749bcd 100644
--- a/libavfilter/f_ebur128.c
+++ b/libavfilter/f_ebur128.c
@@ -435,7 +435,7 @@ static int config_audio_output(AVFilterLink *outlink)
return 0;
}
-#define ENERGY(loudness) (pow(10, ((loudness) + 0.691) / 10.))
+#define ENERGY(loudness) (exp10(((loudness) + 0.691) / 10.))
#define LOUDNESS(energy) (-0.691 + 10 * log10(energy))
#define DBFS(energy) (20 * log10(energy))
--
2.6.4
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