Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
doc/filters.texi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/doc/filters.texi b/doc/filters.texi
index 57330d1fd9..4d255d57c6 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -11374,6 +11374,10 @@ red/green/blue component. Return 0 if there is no such
component.
Return the value of the pixel at location (@var{x},@var{y}) of the alpha
plane. Return 0 if there is no such plane.
+@item psum(x,y), lumsum(x, y), cbsum(x,y), crsum(x,y), rsum(x,y), gsum(x,y),
bsum(x,y), alphasum(x,y)
+Sum of sample values in the rectangle from (0,0) to (x,y), this allows
obtaining
+sums of samples within a rectangle. See the functions without the sum postfix.
+
@item interpolation
Set one of interpolation methods:
@table @option
--
2.24.0
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