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-rw-r--r--doc/filters.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 15e4873dcf..375a82a9b2 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1012,6 +1012,10 @@ select double-exponential seat
select double-exponential sigmoid
@item losi
select logistic sigmoid
+@item sinc
+select sine cardinal function
+@item isinc
+select inverted sine cardinal function
@item nofade
no fade applied
@end table