avfilter: add fillborders filter

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

1 files changed, 42 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index ec37b9dcb8..f7c371592f 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -8610,6 +8610,48 @@ framework.
 
 It does not take parameters.
 
+@section fillborders
+
+Fill borders of the input video, without changing video stream dimensions.
+Sometimes video can have garbage at the four edges and you may not want to
+crop video input to keep size multiple of some number.
+
+This filter accepts the following options:
+
+@table @option
+@item left
+Number of pixels to fill from left border.
+
+@item right
+Number of pixels to fill from right border.
+
+@item top
+Number of pixels to fill from top border.
+
+@item bottom
+Number of pixels to fill from bottom border.
+
+@item mode
+Set fill mode.
+
+It accepts the following values:
+@table @samp
+@item smear
+fill pixels using outermost pixels
+
+@item mirror
+fill pixels using mirroring
+
+@item fixed
+fill pixels with constant value
+@end table
+
+Default is @var{smear}.
+
+@item color
+Set color for pixels in fixed mode. Default is @var{black}.
+@end table
+
 @section find_rect
 
 Find a rectangular object