On 26-05-2019 09:23 PM, Werner Robitza wrote:
> From 2f91dfe64e41edcdcc8ba28e37b711106b640a05 Mon Sep 17 00:00:00 2001
> From: Werner Robitza <werner.robi...@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.robi...@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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