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doc/filters: correct description of variables in blend filter 

Invert description of SW / SH variables.
This commit is contained in:
Gyan Doshi 2018-07-13 10:51:49 +05:30
parent 1a31c2b5df
commit 97d766ff52
1 changed files with 4 additions and 4 deletions
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doc/filters.texi
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@ -5645,10 +5645,10 @@ the width and height of currently filtered plane
@item SW
@item SH
Width and height scale depending on the currently filtered plane. It is the
ratio between the corresponding luma plane number of pixels and the current
plane ones. E.g. for YUV4:2:0 the values are @code{1,1} for the luma plane, and
@code{0.5,0.5} for chroma planes.
Width and height scale for the plane being filtered. It is the
ratio between the dimensions of the current plane to the luma plane,
e.g. for a @code{yuv420p} frame, the values are @code{1,1} for
the luma plane and @code{0.5,0.5} for the chroma planes.
@item T
Time of the current frame, expressed in seconds.