doc/filters.texi: prefer @example over the unsupported @math for showing equation
authorStefano Sabatini <stefasab@gmail.com>
Tue, 24 Jan 2012 22:32:49 +0000 (23:32 +0100)
committerStefano Sabatini <stefasab@gmail.com>
Mon, 6 Feb 2012 10:30:54 +0000 (11:30 +0100)
doc/filters.texi

index 444949c..7a148cd 100644 (file)
@@ -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