[FFmpeg-devel] [PATCH 05/11] avfilter/af_volume: use log10 instead of log()/M_LN10

Ganesh Ajjanagadde gajjanagadde at gmail.com
Thu Oct 29 05:20:03 CET 2015


This is likely more precise and conveys the intent better.

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 16e994c..3ba356a 100644
--- a/libavfilter/af_volume.c
+++ b/libavfilter/af_volume.c
@@ -279,7 +279,7 @@ static int set_volume(AVFilterContext *ctx)
         av_log(ctx, AV_LOG_VERBOSE, "volume_i:%d/255 ", vol->volume_i);
     }
     av_log(ctx, AV_LOG_VERBOSE, "volume:%f volume_dB:%f\n",
-           vol->volume, 20.0*log(vol->volume)/M_LN10);
+           vol->volume, 20.0*log10(vol->volume));
 
     volume_init(vol);
     return 0;
-- 
2.6.2



More information about the ffmpeg-devel mailing list