avfilter/vf_displace: add mirror edge mode

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

1 files changed, 3 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 19ca055076..abc3a0cae8 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -6890,6 +6890,9 @@ Adjacent pixels will spread out to replace missing pixels.
 
 @item wrap
 Out of range pixels are wrapped so they point to pixels of other side.
+
+@item mirror
+Out of range pixels will be replaced with mirrored pixels.
 @end table
 Default is @samp{smear}.