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doc/filters: document rand() drawtext expression function

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Stefano Sabatini 2012-05-01 12:52:16 +02:00
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doc/filters.texi
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@ -1364,11 +1364,11 @@ output image.
The default value of @var{x} and @var{y} is "0".
See below for the list of accepted constants.
See below for the list of accepted constants and functions.
@end table
The parameters for @var{x} and @var{y} are expressions containing the
following constants:
following constants and functions:
@table @option
@item dar
@ -1412,6 +1412,9 @@ contained in the rendered text
@item n
the number of input frame, starting from 0
@item rand(min, max)
return a random number included between @var{min} and @var{max}
@item sar
input sample aspect ratio