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-rw-r--r--doc/filters.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index c7e2d9d184..9b39ea50ef 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1314,6 +1314,8 @@ Negate input video.
This filter accepts an integer in input, if non-zero it negates the
alpha component (if available). The default value in input is 0.
+@section noformat
+
Force libavfilter not to use any of the specified pixel formats for the
input to the next filter.