From 6fa998c49109a7222c118ab91b6eda26ca6d69ad Mon Sep 17 00:00:00 2001 From: Tim Nicholson Date: Mon, 26 Mar 2012 17:39:05 +0100 Subject: [PATCH] Clarify the use of the interl=1|-1 option of the scale filter. It is not entirely clear that whilst for width and height only an expression needs to be provided, for interlace the option must also be given. It is also unclear that the default is non interlaced aware scaling. Signed-off-by: Michael Niedermayer --- doc/filters.texi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index ac3e841457..6c6d439b94 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2280,6 +2280,8 @@ select interlaced aware scaling depending on whether the source frames are flagged as interlaced or not @end table +Unless @var{interl} is set to one of the above options, interlaced scaling will not be used. + Some examples follow: @example # scale the input video to a size of 200x100. @@ -2290,6 +2292,9 @@ scale=2*iw:2*ih # the above is the same as scale=2*in_w:2*in_h +# scale the input to 2x with forced interlaced scaling +scale=2*iw:2*ih:interl=1 + # scale the input to half size scale=iw/2:ih/2 -- 2.11.0