avfilter: add aderivative and aintegral filter

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2018-05-14 10:07:44 +02:00
parent 64f59a21b3
commit 4e816b5491
6 changed files with 219 additions and 1 deletions
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -585,6 +585,12 @@ adelay=0|500S|700S
@end example
@end itemize

+@section aderivative, aintegral
+
+Compute derivative/integral of audio stream.
+
+Applying both filters one after another produces original audio.
+
@section aecho

 Apply echoing to the input audio.