Also mention option defaults. Also fix incorrect k1 and k2 "no correction" values.
Signed-off-by: Lou Logan <l...@lrcd.com> --- doc/filters.texi | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index c6fef0c..c74b4b5 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -5961,17 +5961,15 @@ The filter accepts the following options: @table @option @item cx -Relative x-coordinate of the focal point of the image, and thereby the center of the -distortion. This value has a range [0,1] and is expressed as fractions of the image -width. +Set the x-center of the distortion. Range is 0 to 1. Default is 0.5. @item cy -Relative y-coordinate of the focal point of the image, and thereby the center of the -distortion. This value has a range [0,1] and is expressed as fractions of the image -height. +Set the y-center of the distortion. Range is 0 to 1. Default is 0.5. @item k1 -Coefficient of the quadratic correction term. 0.5 means no correction. +Coefficient of the quadratic correction term. 0.0 means no correction. +Range is -1 to 1. Default is 0.0. @item k2 -Coefficient of the double quadratic correction term. 0.5 means no correction. +Coefficient of the double quadratic correction term. 0.0 means no correction. +Range is -1 to 1. Default is 0.0. @end table The formula that generates the correction is: -- 2.2.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
