Merge commit '9127ac5ebc941d5e54828a91e5072c876be8ec42'

[ffmpeg] / doc / utils.texi

diff --git a/doc/utils.texi b/doc/utils.texi
index 1734439459f8b9bf465b3b5a867686cc3a55c001..e635118565fdc42e503abff3fd6185fa95112dc4 100644 (file)
--- a/doc/utils.texi
+++ b/doc/utils.texi
@@ -864,6 +864,9 @@ Load the value of the internal variable with number
 @var{var}, which was previously stored with st(@var{var}, @var{expr}).
 The function returns the loaded value.
 
+@item lerp(x, y, z)
+Return linear interpolation between @var{x} and @var{y} by amount of @var{z}.
+
 @item log(x)
 Compute natural logarithm of @var{x}.
 
@@ -914,6 +917,9 @@ various input values that the expression can access through
 @code{ld(0)}. When the expression evaluates to 0 then the
 corresponding input value will be returned.
 
+@item round(expr)
+Round the value of expression @var{expr} to the nearest integer. For example, "round(1.5)" is "2.0".
+
 @item sin(x)
 Compute sine of @var{x}.