[FFmpeg-devel] [PATCH 2/2] doc/filters/smartblur: amend definition of luma_radius and chroma_radius

[Stefano Sabatini <stefasab@gmail.com>]

Correctly define the option values as a standard deviation rather than a variance.

Address trac issue:
http://trac.ffmpeg.org/ticket/9068
---
 doc/filters.texi | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 90e6c433c4..01291c235a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -22178,9 +22178,10 @@ It accepts the following options:
 
 @table @option
 @item luma_radius, lr
-Set the luma radius. The option value must be a float number in
-the range [0.1,5.0] that specifies the variance of the gaussian filter
-used to blur the image (slower if larger). Default value is 1.0.
+Set the luma radius. The option value must be a float number in the
+range [0.1,5.0] that specifies the standard deviation of the gaussian
+filter used to blur the image (slower if larger). Default value is
+1.0.
 
 @item luma_strength, ls
 Set the luma strength. The option value must be a float number
@@ -22196,9 +22197,10 @@ a value included in [0,30] will filter flat areas and a value included
 in [-30,0] will filter edges. Default value is 0.
 
 @item chroma_radius, cr
-Set the chroma radius. The option value must be a float number in
-the range [0.1,5.0] that specifies the variance of the gaussian filter
-used to blur the image (slower if larger). Default value is @option{luma_radius}.
+Set the chroma radius. The option value must be a float number in the
+range [0.1,5.0] that specifies the standard deviation of the gaussian
+filter used to blur the image (slower if larger). Default value is
+@option{luma_radius}.
 
 @item chroma_strength, cs
 Set the chroma strength. The option value must be a float number
-- 
2.34.1

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