avfilter/window_func: add tukey window function

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 341ca4ebba..02ee9a6955 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -14535,6 +14535,7 @@ It accepts the following values:
 @item nuttall
 @item lanczos
 @item gauss
+@item tukey
 @end table
 Default is @code{hanning}.
 
@@ -14678,6 +14679,7 @@ It accepts the following values:
 @item nuttall
 @item lanczos
 @item gauss
+@item tukey
 @end table
 
 Default value is @code{hann}.