[FFmpeg-devel] PATCH: doc/swscaler: explain default Lanczos parameter

Gyan ffmpeg at gyani.pro
Sun May 26 19:09:23 EEST 2019



On 26-05-2019 09:23 PM, Werner Robitza wrote:

 > From 2f91dfe64e41edcdcc8ba28e37b711106b640a05 Mon Sep 17 00:00:00 2001
 > From: Werner Robitza <werner.robitza at gmail.com>
 > Date: Sun, 26 May 2019 17:52:00 +0200
 > Subject: [PATCH] doc/swscaler: explain default Lanczos parameter
 >
 > Explain that the default Lanczos filter parameter is 3 and that it can be
 > changed by the param0 option.
 >
 > Signed-off-by: Werner Robitza <werner.robitza at gmail.com>
 > ---
 >  doc/scaler.texi | 3 ++-
 >  1 file changed, 2 insertions(+), 1 deletion(-)
 >
 > diff --git a/doc/scaler.texi b/doc/scaler.texi
 > index f1b9bba3b4..eb045de6b7 100644
 > --- a/doc/scaler.texi
 > +++ b/doc/scaler.texi
 > @@ -48,7 +48,8 @@ Select Gaussian rescaling algorithm.
 >  Select sinc rescaling algorithm.
 >
 >  @item lanczos
 > -Select Lanczos rescaling algorithm.
 > +Select Lanczos rescaling algorithm. The default width (alpha) is 3 
and can be
 > +changed by setting @code{param0}.
 >
 >  @item spline
 >  Select natural bicubic spline rescaling algorithm.
 > --
 > 2.21.0

Do you want to update it for all algorithms with missing parameter details?

Gyan


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