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-rw-r--r--doc/filters.texi2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 22c8687bdf..9d500e44a9 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -18095,7 +18095,7 @@ Default value is @b{@samp{ypr}}.
@item h_flip
@item v_flip
@item d_flip
-Flip the output video horizontally/vertically/in-depth. Boolean values.
+Flip the output video horizontally(swaps left-right)/vertically(swaps up-down)/in-depth(swaps back-forward). Boolean values.
@item ih_flip
@item iv_flip