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doc/filters: document vf_scales color range

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2013-07-20 23:24:13 +02:00
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doc/filters.texi
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@ -6279,6 +6279,23 @@ Society of Motion Picture and Television Engineers 170M (2004)
Society of Motion Picture and Television Engineers 240M
@end table
@item in_range
@item out_range
Set in/output YCbCr sample range.
This allows the autodetected value to be overridden as well as allows forcing
a specific value used for the output and encoder.
If not specified, the range depends on the pixel format.
@table @samp
@item auto
Choose automatically
@item jpeg/full/pc
Full range (0-255 in case of 8bit luma)
@item mpeg/tv
"Mpeg" range (16-235 in case of 8bit luma)
@end table
@end table
The values of the @var{w} and @var{h} options are expressions