avfilter/avf_showvolume: implement basic rms metering mode

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2018-03-23 22:53:13 +01:00
parent 74c6a6d373
commit 3e3d567761
2 changed files with 48 additions and 6 deletions
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -19970,6 +19970,10 @@ step is disabled.

@item p
 Set background opacity, allowed range is [0, 1]. Default is 0.
+
+@item m
+Set metering mode, can be peak: @code{p} or rms: @code{r},
+default is @code{p}.
@end table

@section showwaves