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doc/filters.texi: prefer @example over the unsupported @math for showing equation

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Stefano Sabatini 2012-01-24 23:32:49 +01:00
parent 3fa9ace3d8
commit 23534d0c4c
1 changed files with 3 additions and 1 deletions
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doc/filters.texi
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@ -2342,7 +2342,9 @@ output video.
This is done by changing the specified Sample (aka Pixel) Aspect
Ratio, according to the following equation:
@math{DAR = HORIZONTAL_RESOLUTION / VERTICAL_RESOLUTION * SAR}
@example
@var{DAR} = @var{HORIZONTAL_RESOLUTION} / @var{VERTICAL_RESOLUTION} * @var{SAR}
@end example
Keep in mind that the @code{setdar} filter does not modify the pixel
dimensions of the video frame. Also the display aspect ratio set by