diff mbox

[FFmpeg-devel] doc/filters: Document geq *sum functions

Message ID 20191228102844.27899-1-michael@niedermayer.cc
State New
Headers show

Commit Message

Michael Niedermayer Dec. 28, 2019, 10:28 a.m. UTC
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 doc/filters.texi | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Michael Niedermayer Jan. 30, 2020, 7:26 p.m. UTC | #1
On Sat, Dec 28, 2019 at 11:28:44AM +0100, Michael Niedermayer wrote:
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  doc/filters.texi | 4 ++++
>  1 file changed, 4 insertions(+)

will apply

[...]
diff mbox

Patch

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