From bf4245e9521b0a6ace13c8432f161a3739219b2d Mon Sep 17 00:00:00 2001
From: Gyan Doshi <ffmpeg@gyani.pro>
Date: Sat, 20 Apr 2019 17:04:54 +0530
Subject: [PATCH] doc/filters: list values for af_surround window function

---
 doc/filters.texi | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index cf1c72eced..31cd3fe21b 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -4884,7 +4884,32 @@ Set LFE input volume. By default, this is @var{1}.
 Set LFE output volume. By default, this is @var{1}.
 
 @item win_func
-Set window function, default is @code{hann}.
+Set window function.
+
+It accepts the following values:
+@table @samp
+@item rect
+@item bartlett
+@item hann, hanning
+@item hamming
+@item blackman
+@item welch
+@item flattop
+@item bharris
+@item bnuttall
+@item bhann
+@item sine
+@item nuttall
+@item lanczos
+@item gauss
+@item tukey
+@item dolph
+@item cauchy
+@item parzen
+@item poisson
+@item bohman
+@end table
+Default is @code{hann}.
 
 @item overlap
 Set window overlap. If set to 1, the recommended overlap for selected