[FFmpeg-cvslog] doc/filters: add more examples for afftfilt

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Wed Oct  9 19:03:45 2019 +0200| [1cdb7c58398464da815808134c8be039dabb9428] | committer: Paul B Mahol

doc/filters: add more examples for afftfilt

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1cdb7c58398464da815808134c8be039dabb9428
---

 doc/filters.texi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index 5d2b6692aa..55a8ebae56 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1153,6 +1153,18 @@ Leave almost only low frequencies in audio:
 @example
 afftfilt="'real=re * (1-clip((b/nb)*b,0,1))':imag='im * (1-clip((b/nb)*b,0,1))'"
 @end example
+
+ at item
+Apply robotize effect:
+ at example
+afftfilt="real='hypot(re,im)*sin(0)':imag='hypot(re,im)*cos(0)':win_size=512:overlap=0.75"
+ at end example
+
+ at item
+Apply whisper effect:
+ at example
+afftfilt="real='hypot(re,im)*cos((random(0)*2-1)*2*3.14)':imag='hypot(re,im)*sin((random(1)*2-1)*2*3.14)':win_size=128:overlap=0.8"
+ at end example
 @end itemize
 
 @anchor{afir}