ffmpeg | branch: master | Paul B Mahol <[email protected]> | Sat Apr 29 11:44:21 
2017 +0200| [b8b0cece794d8338ec79833c55e77d53888f800f] | committer: Paul B Mahol

doc/filters: add one lowpass filter example

Signed-off-by: Paul B Mahol <[email protected]>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b8b0cece794d8338ec79833c55e77d53888f800f
---

 doc/filters.texi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index 2fe7ff7b8c..d49fec1264 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -3002,6 +3002,15 @@ The default is 0.707q and gives a Butterworth response.
 Specify which channels to filter, by default all available are filtered.
 @end table
 
+@subsection Examples
+@itemize
+@item
+Lowpass only LFE channel, it LFE is not present it does nothing:
+@example
+lowpass=c=LFE
+@end example
+@end itemize
+
 @anchor{pan}
 @section pan
 

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